CN212992134U

CN212992134U - Stacked thrust electric push rod

Info

Publication number: CN212992134U
Application number: CN202020911476.1U
Authority: CN
Inventors: 杨国平
Original assignee: Changsha Yachuang Intelligent Technology Co ltd
Current assignee: Changsha Yachuang Intelligent Technology Co ltd
Priority date: 2020-05-27
Filing date: 2020-05-27
Publication date: 2021-04-16
Anticipated expiration: 2030-05-27

Abstract

An overlapped thrust electric push rod. The device is provided with a push rod device (4), a motor (5) and a one-way control mechanism (9), a rotating shaft in a transmission system is provided with a motor shaft (5a), a threaded rotating shaft (4a) in the push rod device (4), a connecting shaft (9a) and a connecting rotating shaft (9b) in the one-way control mechanism (9), one end of the connecting rotating shaft is connected with the motor shaft, the other end of the connecting rotating shaft is connected with one end of a clutch mechanism (11), the other end of the clutch mechanism is connected with one end of the connecting shaft (9a), and the other end of the connecting shaft (9a) is connected with the inner end of the threaded rotating; a normally closed one-way brake mechanism (10) is arranged on the connecting shaft, and a one-way bearing (20) is arranged on the connecting rotating shaft; the push rod device is internally provided with a first spring component (7) and a second spring component (16), and the first spring component realizes the first thrust to the pushed component and then realizes the superposed thrust again, so that the reliability of the operation effect and the stability of the operation process can be improved.

Description

Stacked thrust electric push rod

The technical field is as follows:

the utility model relates to an electric putter specifically is an electric putter with stack thrust, not only is applicable to the stopper, still is applicable to other equipment or the device of similar stopper operating condition.

Background art:

fig. 1 is a schematic structural diagram of a conventional normally closed brake, in which an electric pushing device 2 'includes a pushing rod device 4', a motor 5 'and a speed reducing mechanism 6'; the rotating shaft in the transmission system of the electric pushing device 2 ' comprises a motor shaft 5a ', an input shaft 6a ' and an output shaft 6b ' of a speed reducing mechanism 6 ', and a threaded rotating shaft 4a ' of the pushing rod device 4 '; when the motor 5 ' is electrified, the motor shaft 5a ' drives the input shaft, the output shaft and the threaded rotating shaft of the speed reducing mechanism 6 ' to rotate in the positive direction; the outer end of the input shaft 6a 'of the speed reducing mechanism is provided with a normally open clutch 2 a', which is used for locking the input shaft of the speed reducing mechanism in a non-rotatable state when the brake mechanism 1 'is in an open state and is powered on and closed so as to maintain the brake mechanism 1' in an open state;

the push rod device 4 'comprises a shell 4 e', the inner end of the shell 4e 'is connected with the inner side wall of the box body of the speed reducing mechanism 6', the thread section 4b 'of the thread rotating shaft 4 a' is located in an inner cavity of the shell 4e ', the thread section 4 b' is provided with a nut 4c ', the nut 4 c' and the thread section 4b 'are thread transmission pairs, the middle part of the nut 4 c' is provided with a flange plate 4d ', the outer end of the flange plate 4 d' is provided with a push rod 8 ', the outer section of the push rod 8' extends out of the end wall of the shell 4e ', a spring part 7' is arranged between the flange plate 4d 'and the inner side wall of the box body of the speed reducing mechanism 6', the tension of the spring part 7 'acts on the push rod 8' through the flange plate 4d ', the end part of the push rod 8' and the outer side wall of the box body, in fig. 1, the coupling lug 8a 'is pivotally connected to the drive end 3 c' of the brake arm 3 'of the brake mechanism 1'.

The working process of the electric pushing device 2' for driving the normally closed brake is as follows: when the motor 5 'is electrified to operate, the output shaft 6 b' of the speed reducing mechanism 6 'drives the threaded rotating shaft 4 a' to rotate, the nut 4c 'displaces inwards along the threaded section 4 b', the spring piece 7 'is compressed, meanwhile, the nut 4 c' and the push rod 8 'retract inwards, the connecting lugs 8 a' at the two ends of the push rod device drive the driving ends 3c 'of the two braking arms 3' to swing inwards, the braking members 3b 'at the braking ends 3 a' of the two braking arms 3 'are opened outwards until the braking state shown in fig. 1 is released, the clutch 2 a' is electrified to be closed, the input shaft of the speed reducing mechanism is locked to be in a non-rotatable state, so that the braking mechanism is maintained to be in an open state, and the motor is powered off to stop operating; when braking is needed, the clutch 2a ' is powered off, the state is reset to the open state, the locking of the input shaft of the speed reducing mechanism is released, the motor shaft in the rotating shaft system, the input shaft and the output shaft of the speed reducing mechanism 6 ' and the threaded rotating shaft of the push rod device 4 ' are all in a rotatable state, in this state, under the thrust action of the spring piece 7 ', the threaded rotating shaft 4a ', the gear shaft and the motor shaft of the speed reducing mechanism are reversely rotated, the nut 4c ' is displaced towards the outer end along the threaded section 4b ', the push rod 8 ' extends outwards along with the threaded section, the push rod device 4 ' respectively pushes the driving ends 3c ' of the two braking arms 3 ' to swing outwards through the connecting lugs 8a ' at the two ends, and the braking members 3b ' of the braking ends 3a ' of the two braking arms 3 ' are folded inwards until the braking state.

Taking the normally closed brake as an example, the electric driving device 2' has the following disadvantages:

in the process that the electric pushing device 2' drives the normally closed brake to realize braking:

1) after the friction plate and the braking surface of the braked member in the braking mechanism are frequently engaged and braked and worn, the gap between the friction plate and the braking surface of the braked member is increased or overlarge, so that the extension stroke of the spring member 7 'of the electric pushing device 2' is increased, the thrust force of the spring member 7 'during extension is reduced, the braking effect is influenced, the braking reliability and the working stability are reduced, especially when the spring member 7' is a spring member with high rigidity, the braking acting force is rapidly reduced due to slight abrasion of the friction plate, the reliability of the braking effect is seriously influenced, and even potential safety hazards are brought.

2) In the electric pushing device 2 ', due to the pushing force of the spring element 7 ', namely the pushing nut 4c ' is rapidly displaced towards the outer end along the threaded section 4b ', the push rod device 4 ' pushes the driving ends 3c ' of the two braking arms 3 ' to rapidly swing towards the outer side through the connecting lugs 8a ' at the two ends, the braking members 3b ' at the braking ends of the two braking arms 3 ' are rapidly folded towards the inner side, the friction plates 3d ' on the braking blocks are rapidly engaged with the braked members, and the kinetic energy formed by the rotation of the rotating members causes impact to the braked members, so that the brakes and equipment vibrate, the stability of the braking process is affected, and even the members are damaged.

Disclosure of Invention

The utility model aims at providing an electric putter with stack thrust sets up doublestage spring force source component, realizes stack thrust once more after first spring component is realized the thrust by the promotion component, and second spring component acts on the produced impact when being pushed the piece and plays cushioning effect to first spring component's thrust, can improve the reliability of operational effect and the stability of operation process.

The utility model discloses technical scheme:

for convenience of reading and understanding, the technical scheme of the invention is described by the aid of the attached drawings.

The scheme of the utility model is shown in figure 2, figure 5, figure 6 and figure 9;

the scheme of the utility model comprises a push rod device 4, a motor 5 and a one-way control mechanism 9 for controlling the pushing operation condition;

the one-way control mechanism 9 comprises a second shell 17, a connecting shaft 9a and a connecting rotating shaft 9b which are positioned in the shell, and a clutch mechanism 11 is arranged;

the rotating shaft in the transmission system of the scheme of the utility model comprises a motor shaft 5a, a thread rotating shaft 4a in the push rod device 4, a connecting shaft 9a and a connecting rotating shaft 9b in the one-way control mechanism 9; one end of the connecting rotating shaft 9b is connected with the motor shaft 5a, the other end of the connecting rotating shaft 9b is connected with one end of the clutch mechanism 11, the other end of the clutch mechanism 11 is connected with one end of the connecting shaft 9a, and the other end of the connecting shaft 9a is connected with the inner end of the threaded rotating shaft 4 a; when the motor 5 operates, the motor shaft 5a can drive the connecting rotating shaft 9b, the connecting shaft 9a and the threaded rotating shaft 4a to rotate in the forward direction (in the specification, the motor shaft 5a drives the connecting rotating shaft 9b, the connecting shaft 9a and the threaded rotating shaft 4a to rotate in the forward direction), and when the threaded rotating shaft 4a rotates in the reverse direction in an operating condition, the connecting shaft 9a rotates in the reverse direction;

the connecting shaft 9a is provided with a normally closed type unidirectional braking mechanism 10, the unidirectional braking mechanism is a braking mechanism with a braking function only in one motion direction, and the normally closed type unidirectional braking mechanism 10 has the following functions: when the power is off, the locking connecting shaft 9a, the connecting rotating shaft 9b, the threaded rotating shaft 4a and the motor shaft 5a cannot rotate in the positive direction, so that the electric push rod is effectively maintained in a thrust state;

the connecting rotating shaft 9b is provided with a one-way bearing 20, and the one-way bearing 20 has the following functions: when the clutch mechanism 11 is switched on and switched off to enable the connecting shaft 9a and the connecting rotating shaft 9b to be in a coupling combined state, the one-way bearing 20 controls the connecting shaft 9a, the connecting rotating shaft 9b, the threaded rotating shaft 4a and the motor shaft 5a to be only in forward rotation and not in reverse rotation so as to effectively maintain the electric push rod to be in a reset state, and when the clutch mechanism 11 is switched off and switched on to enable the connecting shaft 9a and the connecting rotating shaft 9b to be in a disconnected state, the connecting rotating shaft 9b and the motor shaft 5a are locked and not in reverse rotation along with the threaded rotating shaft 4 a;

the push rod device 4 is provided with a connecting plate 12 and a first shell 13, the inner end of the first shell 13 is connected with the connecting plate 12, one end of a threaded rotating shaft 4a is connected with the connecting plate 12 and is supported by the connecting plate 12, a threaded section 4b at the other end of the threaded rotating shaft 4a is positioned in the first shell 13, a nut 14 is arranged on the threaded section 4b, the threaded section 4b and the nut 14 form a threaded transmission pair, the threaded angle is larger than a self-locking angle, a flange 14a is arranged on the nut 14, when the threaded rotating shaft 4a rotates, the nut 14 can axially displace along the threaded section 4b, and the flange 14a on the nut 14 concomitantly displaces;

an extension type push rod 8 with an end wall 8b is arranged at the outer end of the first shell 13, a disc part 15 is arranged at the inner end of the extension type push rod 8, the disc part 15 is connected and fixed with the inner end of the extension type push rod 8, the disc part 15 is provided with an inner hole 15a, the wall surface of the extension type push rod 8 is matched with a hole in the wall 13a of the end part of the first shell 13, the outer end of the extension type push rod 8 extends out of the wall 13a of the end part of the first shell 13, a flange 14a on the nut 14 is positioned in the cavity of the extension type push rod 8, the diameter of the inner hole 15a on the disc part 15 is larger than the outer diameter of the nut 14, and under the action of external force;

a first spring member 7 is arranged in the first housing 13, the first spring member 7 is located between a disc 15 at the inner end of the sleeve type push rod 8 and the connecting plate 12, see fig. 2, 5 to 8, or the first spring member 7 is located between the disc 15 at the inner end of the sleeve type push rod 8 and the end wall 13a of the first housing 13, see fig. 9, and the pushing force of the first spring member 7 acts on the sleeve type push rod 8;

a second spring member 16 is arranged in the push rod device 4, the second spring member 16 is positioned between a flange 14a on the nut 14 and an end wall 8b of the sleeve type push rod 8, see fig. 2, 5 to 8, or the second spring member 16 is positioned between the flange 14a on the nut 14 and a disc 15 at the inner end of the sleeve type push rod 8, see fig. 9, and the pushing force of the second spring member 16 acts on the sleeve type push rod 8; the first spring component 7 and the second spring component 16 constitute a force source component of the double-stage thrust of the present invention;

the outer end of sleeve type push rod 8 and with the outer end of the other end component of 8 coaxial lines of sleeve type push rod are equipped with engaging lug 8a that is in same axis respectively, promptly the utility model discloses the engaging lug 8a at both ends, see fig. 2, fig. 5 to fig. 9. Fig. 2 shows, is the utility model discloses be applied to normally closed brake's example, the utility model discloses engaging lug 8a at both ends is connected with the drive end 3c hinge in two brake arms 3 of brake mechanism respectively.

Further, the method comprises the following steps:

the connecting shaft 9a in the unidirectional control mechanism 9 may be an integral structure, see fig. 2, 5, 6, 9; the connecting shaft 9a may also be a split structure of a first segment 9a01 and a second segment 9a02, referring to fig. 7 and 8, when the connecting shaft 9a is a segment structure, one end of one segment is connected with one end of the connecting rotating shaft 9b through the clutch mechanism 11;

the second housing 17 in the unidirectional control mechanism 9 may be of an integral structure, corresponding to the connecting shaft 9a of the integral structure, see fig. 2, 5, 6, 9; the second casing 17 may also be a split casing structure of the first and

second split casings

1701 and 1702, corresponding to the split structures of the first and second split bodies 9a01 and 9a02 of the connecting shaft 9a, see fig. 7 and 8.

The working state or process of the present invention will be described below by taking fig. 2 as an example.

The first spring member 7 is shown in figure 2 between a disc 15 at the inner end of telescopic push rod 8 and the web 12, and the second spring member 16 is between a flange 14a on nut 14 and an end wall 8b of telescopic push rod 8.

1) The utility model discloses the operating condition of braking in-process is relieved at normal close formula stopper:

in the braking state shown in fig. 2, in order to realize the first thrust state after the first-stage braking is performed, the second spring member 16 is in the superimposed thrust state under the superimposed braking state in which the first spring member 7 is expanded, the second spring member 16 is further compressed and energy is stored, the normally closed one-way brake mechanism 10 in this state is in the closed state and the locking connecting shaft 9a cannot rotate forward, so as to maintain the second spring member 16 in the stable and reliable superimposed thrust state, the sleeve type push rod 8 is in the state after the sleeve type push rod 8 is extended outward, and a distance as shown in fig. 2 is maintained between the inner side surface of the flange 14a on the nut 14 and the inner side surface of the disk 15 at the inner end of the sleeve type push rod 8, and between the outer end of the threaded section 4b and the inner side.

When the brake needs to be released, namely the thrust state of the electric push rod is released, the normally closed one-way brake mechanism 10 is electrified and opened, the forward locking state of the connecting shaft 9a is released, the clutch mechanism 11 is electrified and closed at the same time, so that the connecting shaft 9a and the connecting rotating shaft 9b are in a coupling combined state, at the moment, the connecting shaft 9a is in a forward rotatable state, in the state, the compressed second spring member 16 releases energy and stretched thrust in the forward rotatable state of the threaded rotating shaft 4a, the nut 14 is driven to displace towards the inner end along the threaded section 4b through the flange 14a on the nut 14, so that the threaded rotating shaft 4a generates forward rotation, the motor 5 is electrified, the motor shaft 5a drives the connecting rotating shaft 9b, the connecting shaft 9a and the threaded rotating shaft 4a to rotate in the forward direction, namely, the energy and stretched thrust action of the second spring member 16 assists the motor shaft 5a to drive the threaded rotating shaft 4a to rotate, the two resultant forces enable the threaded rotating shaft 4a to rapidly rotate in the forward direction, so that the displacement of the nut 14 towards the inner end along the threaded section 4b is accelerated until the inner side surface of a flange plate 14a on the nut 14 is attached to and pressed against the inner side surface of a disk part 15 at the inner end of the sleeve type push rod 8, the extension stroke of the second spring component 16 is completed, the thrust of the extension trend of the second spring component 16 acting on the sleeve type push rod 8 is eliminated, the superposed thrust is eliminated, and the superposed brake is eliminated; in the process of removing the superimposed thrust, the second spring component 16 releases energy and the stretched thrust acts on the motor shaft 5a to drive the threaded rotating shaft 4a to rotate in the positive direction, so that the time for removing the thrust is shortened, the motor is assisted to start, and the energy consumption of the motor can be reduced; with the motor shaft 5a continuing to drive the connecting shaft 9b, the connecting shaft 9a and the threaded shaft 4a to rotate in the forward direction, the nut 14 continuing to move towards the inner end along the threaded section 4b, and the flange 14a on the nut 14 driving the sleeve type push rod 8 to retract towards the inner side, the connecting lugs 8a at the two ends of the present invention pulling the driving ends 3c of the two braking arms to swing towards the inner side, the end points of the braking ends 3a of the two braking arms moving towards the outer side until the friction plate 3d and the braked member are separated to a certain gap, the first spring member 7 is compressed, the first thrust is released, i.e. the first braking is released, in this state, the motor 5 is powered off and stops running, the one-way bearing 20 locks the connecting shaft 9b along with it and cannot rotate in the reverse direction, the connecting shaft 9a, the threaded shaft 4a and the motor shaft 5a cannot rotate in the reverse direction along with it, and, therefore, the electric push rod is effectively maintained in a stable reset state, namely, the brake is in a stable opening state (namely, braking is released), and in the state, the inner side surface of the flange plate 14a on the nut 14 and the inner side surface of the disk member 15 at the inner end of the sleeve type push rod 8 are in a joint and pressing state.

2) The utility model discloses realize the operating condition of braking in-process at normal close formula stopper:

when braking is needed, namely the electric push rod realizes a thrust state, the clutch mechanism 11 is powered off and reset to a separated state, the coupling combination state of the connecting shaft 9a and the connecting rotating shaft 9b is released, namely the locking on the connecting shaft 9a is released, so that the connecting shaft 9a is in a reversible state, and the normally closed type one-way brake mechanism 10 does not influence the reverse rotation of the connecting shaft 9a under the power-off closed state, in the state, the first spring component 7 in a compressed state stretches, and pushes the sleeve type push rod 8 to stretch outwards through acting on the disc piece 15 at the inner end of the sleeve type push rod 8, when the sleeve type push rod 8 stretches outwards, because the inner side surface of the flange 14a on the nut 14 and the inner side surface of the disc piece 15 at the inner end of the sleeve type push rod 8 are in a joint compression state, the disc piece 15 at the inner end of the sleeve type push rod 8 pushes, the nut 14 is displaced outwards along the thread section 4b, the threaded rotating shaft 4a is driven to enter a reverse rotation state in the process of displacement of the nut 14 outwards, and the connecting shaft 9a is in a reverse rotation state; under the action of the continuously-extended thrust of the first spring member 7, along with the fact that the sleeve type push rod 8 continuously extends outwards, namely, the sleeve type push rod enters a first pushing state, the connecting lugs 8a at the two ends of the double-end double-arm push rod enters a first pushing state, namely, the driving ends 3c of the two brake arms are respectively driven to swing outwards, the brake members 3b at the braking ends of the two brake arms are quickly attached to the braking surface of the braked member and tightly pressed, so, the flange 14a starts to compress the second spring member 16, after the flange 14a is separated from the disk part 15 at the inner end of the sleeve type push rod 8, the thrust of the first spring member 7 which continues to stretch acts on the sleeve type push rod 8, and the driving end 3c of the brake arm is pushed by the connecting lug 8a to swing outwards, so that the friction plate 3d and the braking surface of the braked part are quickly attached and pressed to enter first-stage braking until first-stage braking is realized;

when the first spring member 7 realizes a first thrust, i.e. a first-stage effective brake, or when the first spring member 7 performs a first thrust, i.e. a first-stage brake, through the action of a stretching thrust, when a brake gap is enlarged due to abrasion of a friction plate, the first spring member 7 will continue to stretch for a certain stroke, and although the stroke of the first spring member 7, which continues to stretch, can affect the first thrust effect to a certain extent, the stroke of the first spring member 7, which continues to stretch, firstly enables the related rotating member to continue to form kinetic energy, secondly compensates for the enlarged brake gap, and enables the friction plate and a braked member to be still in a state of being attached and compressed; in this state, because the threaded rotating shaft 4a and the rotating member of the connecting shaft 9a are in the reverse rotation state, the threaded rotating shaft 4a continues to reverse rotation, the nut 14 continues to move outward along the threaded section 4b, as the nut 14 continues to further displace outward along the threaded section 4b, the second spring member 16 is further compressed, the distance between the flange 14a on the nut 14 and the disk member 15 at the inner end of the sleeve type push rod 8 increases, until when the threaded rotating shaft 4a stops rotating in the reverse direction and the nut 14 stops displacing outward, the inner side surface of the flange 14a on the nut 14 is separated from the disk member 15 at the inner end of the sleeve type push rod 8 to the distance shown in fig. 2, the second spring member 16 is in the state of being further compressed and energy-storing, so as to realize superimposed thrust, when the threaded rotating shaft 4a stops rotating in the reverse direction, the normally closed one-way brake device 10 in the closed state locks the connecting shaft 9a and cannot rotate in the forward direction (the threaded rotating shaft 4a and the connecting shaft 9a cannot rotate in the forward direction), so that the second spring member 16 is in a stable state of being further compressed and storing energy, and the electric push rod is effectively maintained in a stable thrust state with reliable pushing effect, under the state, the thrust with the stretching trend generated by the second spring member 16 which is further compressed and storing energy acts on the sleeve type push rod 8, so that the sleeve type push rod 8 continuously generates the trend of extending outwards, and the driving ends 3c of the two braking arms are further pushed to swing outwards, namely on the basis of the first-stage braking arm, the braking members 3b of the two braking ends 3a obtain the braking power source again and are further folded inwards, so that the friction plates obtain the superposed braking force to realize superposed braking on the braked members, the normally closed one-way brake device 10 in the closed state prevents the locking connecting shaft 9a from rotating in the positive direction, so that the brake is effectively maintained in a stable state with reliable braking effect; the superimposed thrust realized by the second spring member 16 in the further compressed and energy-accumulating state is firstly realized under the thrust action of the first spring member 7, namely, the superimposed thrust is further obtained under the state of realizing first-stage effective braking, so that the reliability of the pushing effect, namely the braking effect is improved; secondly, when the friction plate leads to the brake clearance to be enlarged because of abrasion, the friction plate and the braked component obtain the superimposed thrust realized by the second spring component 16 under the state of being jointed and compressed, and the enlarged brake clearance enables the stroke of the first spring component 7 which is continuously stretched to influence the first thrust effect to a certain extent, but the first spring component 7 continuously stretches the thrust of the stroke, so that the related rotating component continuously forms kinetic energy, and the continuously formed kinetic energy can increase the further compression and energy storage effect of the second spring component 16, namely, the superimposed thrust effect realized by the second spring component 16, so that the normally closed brake applied by the utility model can still be in a stable and reliable brake state; compared with the prior art, the reliability of the braking effect is improved.

The technical effects of the utility model:

1. because the utility model discloses set up first spring component 7 and second spring component 16 simultaneously, if when being applied to the stopper, in the braking mechanism implementation braking process, after the thrust effect when first spring component 7 stretches and implement the first promotion promptly to realize the one-level braking promptly, because the kinetic energy effect that forms in implementing the first promotion promptly to implement the one-level braking of relevant rotating member for the first time, make second spring component 16 by further compression and energy storage, the thrust effect of the produced extension trend of second spring component 16 after being further compressed and energy storage realizes the stack thrust promptly to realize the stack braking, and effectively maintain this electric putter by the one-way arresting gear of normal close formula 10 in the stable thrust state that is in reliable promotion effect promptly the stopper is in the stable state of reliable braking effect; the reliable braking effect of the braking mechanism is in a stable state, and compared with the prior art, the reliability of the braking effect is improved; similarly, when the utility model is used for other equipment or devices similar to the operation condition of the brake, the similar effect is achieved, so that the pushed object can be in a stable state; moreover, the superimposed thrust obtained by further compressing and accumulating the second spring member 16 is realized by fully utilizing the kinetic energy generated by the reverse rotation of the relevant rotating member in the first pushing implementation process, and no energy source is consumed.

2. When the utility model is applied to a normally closed brake, the first spring member 7 pushes for the first time, namely, the brake mechanism applies the primary braking process, when the friction plate is worn to cause the brake clearance to be enlarged, the first spring member 7 will continue to stretch for a certain distance, the distance of the first spring member 7 will influence the first thrust effect to a certain extent, but the first spring member 7 continues to stretch the thrust of the distance, so that the related rotating members continue to form kinetic energy, and the enlarged brake clearance is compensated, so that the friction plate and the braked member are still kept in the bonding and compressing state to realize the primary braking; after the primary braking is realized, the second spring component 16 is further compressed and stores energy due to the kinetic energy effect formed by the related rotating component in the primary braking, and the thrust with the stretching tendency generated by the second spring component 16 after being further compressed and stored energy realizes the superimposed thrust; moreover, the increased braking clearance enables the continuous extending stroke of the first spring component 7 to influence the effect of the first thrust to a certain degree, but the continuous extending stroke of the first spring component 7 enables the related rotating component to continue to form kinetic energy, and the continuously formed kinetic energy can increase the further compression and energy storage of the second spring component 16 to increase the superimposed thrust of the second spring component 16, so as to improve the superimposed braking effect, so that the normally closed brake applied by the utility model can still realize stable and reliable braking when the braking is implemented in the state that the friction plate leads to the increase of the braking clearance due to abrasion; compared with the prior art, the reliability of the braking effect is improved, and the defect that the braking gap needs to be adjusted frequently in the prior art is overcome. In a similar way, when the utility model is used for then have the same effect when other equipment or the device of similar stopper operating condition for the object that is promoted can be in stable and reliable state.

3. When the utility model is applied to a normally closed brake, under the brake state after realizing the superposition thrust, namely the brake mechanism realizes the superposition brake, when the friction plate is thinned due to abrasion and the brake surface of the braked member is in a relaxation trend, because under the state, a certain distance is kept between the inner side surface of the flange 14a on the nut 14 and the inner side surface of the disc member 15 at the inner end of the sleeve type push rod 8 or between the outer side surface of the flange 14a on the nut 14 and the inner side surface of the end wall 8b of the sleeve type push rod 8, the first spring component 7 and the second spring component 16 in the compression state can rapidly generate the thrust action of the continuous expansion trend, and through acting on the sleeve type push rod 8, the sleeve type push rod 8 is pushed to extend outwards or retract inwards, the relaxation trend of the friction plate and the brake surface of the braked member can be compensated by a certain gap, the effective braking state that the friction plate 3d is attached to and pressed tightly with the braking surface of the braked member is maintained, so that the effective braking state can be maintained when the friction plate is abraded in the braking state after the superposition braking is realized. In a similar way, when the utility model is used for then have the same effect when other equipment or the device of similar stopper operating condition for the object that is promoted can be in effectual promotion state.

4. When the utility model is applied to a brake, when first spring member 7 implements first pushing, namely, when the brake mechanism implements first braking, first pushing force is implemented, namely friction disc 3d and the braking surface of the braked member are rapidly attached to compressing tightly and enter first-stage braking, when flange 14a and the inner disk 15 of sleeve type push rod 8 or flange 14a are separated from the end wall 8b of sleeve type push rod 8, the stretching pushing force generated by compressing second spring member 16 acts on flange 14a on nut 14 and the inner disk 15 of sleeve type push rod 8 or end wall 8b of sleeve type push rod 8 still in the attached state with flange 14a, so that the stretching acting force generated by compressing second spring member 16 plays a role in buffering the acting force of the trend of continuing stretching of first spring member 7 acting on disk 15, namely, the impact generated when friction disc 3d and the braking surface of the braked member are rapidly combined and compressed tightly is buffered The impact on the braked member can be reduced, the vibration generated by the brake and the braked equipment is reduced, and the damage to the components is avoided, so that the stability of the brake operation process is improved. Similarly, when the utility model is used for then have the same effect during other equipment or the device of similar stopper operating mode, the second spring component plays the cushioning effect to produced impact when the thrust of first spring component acts on by the impeller, can reduce the impact to by the impeller, reduces the vibration, avoids the component to cause the damage.

5. In the process of removing the thrust, the normally closed one-way brake mechanism 10 is electrified to remove the positive locking of the connecting shaft 9a, the clutch mechanism 11 is electrified to be closed at the same time to enable the connecting shaft 9a and the connecting rotating shaft 9b to be in a coupling combined state, the second spring member 16 which is in a compressed state and can store energy starts to release energy and tensile thrust to act on the flange 14a on the nut 14, so that the nut 14 starts to displace inwards or outwards along the thread section 4b, thereby driving the thread rotating shaft to generate positive rotation, after the motor 5 is electrified, the motor shaft 5a also drives the connecting rotating shaft 9b, the connecting shaft 9a and the thread rotating shaft 4a to positively drive, namely in the process of removing the superimposed thrust, the second spring member 16 releases energy and the tensile thrust to act on the motor shaft 5a to drive the thread rotating shaft 4a to positively rotate, the combination force of the two can enable the thread rotating shaft 4a to rapidly positively rotate, the accelerating nut 14 moves inwards or outwards along the thread section 4b, so that the time for releasing the thrust is shortened, the starting of the motor is assisted, and the energy consumption of the motor can be reduced.

Other technical effects will be further explained in the detailed description.

Drawings

Fig. 1 is a schematic structural diagram of a conventional normally closed brake, which includes a structure of an electric propulsion device 2';

fig. 2 is a schematic structural view of embodiment 1 of the present invention, and shows a connection manner with the brake mechanism 1;

FIG. 3 is a schematic sectional view taken along line A-A of the pusher assembly 4 of FIG. 2;

FIG. 4 is another embodiment of the cross-sectional structure of FIG. 3;

FIG. 5 is a schematic structural view of example 2;

FIG. 6 is a schematic structural view of embodiment 3;

FIG. 7 is a schematic structural view of example 4;

FIG. 8 is a schematic structural view of example 5;

fig. 9 is a schematic structural diagram of example 6, which shows a modified structure of the solution of the present invention;

fig. 10 shows the connection of the invention to a braking device 1 of another embodiment.

The cross-sectional schematic structure of the pusher device 4 in fig. 5 to 9 refers to the structure shown in fig. 3 and 4.

Detailed Description

Example 1, see fig. 2-4.

Fig. 2 shows the structure of embodiment 1 of the present invention, and shows an example of application to a normally closed brake.

The utility model comprises a push rod device 4, a motor 5 and a one-way control mechanism 9 for controlling the pushing operation condition;

the one-way control mechanism 9 comprises a second shell 17, a connecting shaft 9a and a connecting rotating shaft 9b which are positioned in the shell, and is provided with a clutch mechanism 11 and a one-way bearing 20;

the rotating shaft in the transmission system of the embodiment comprises a motor shaft 5a, a threaded rotating shaft 4a in the push rod device 4, a connecting shaft 9a and a connecting rotating shaft 9b in the one-way control mechanism 9; one end of the connecting rotating shaft 9b is connected with the motor shaft 5a, the other end of the connecting rotating shaft 9b is connected with one end of the clutch mechanism 11, the other end of the clutch mechanism 11 is connected with one end of the connecting shaft 9a, and the other end of the connecting shaft 9a is connected with the inner end of the threaded rotating shaft 4 a; when the motor 5 operates, the motor shaft 5a can drive the connecting rotating shaft 9b, the connecting shaft 9a and the threaded rotating shaft 4a to rotate in the forward direction (in the specification, the motor shaft 5a drives the connecting rotating shaft 9b, the connecting shaft 9a and the threaded rotating shaft 4a to rotate in the forward direction), and when the threaded rotating shaft 4a rotates in the reverse direction in an operating condition, the connecting shaft 9a rotates in the reverse direction;

in this example, one end of the connecting shaft 9b and the motor shaft 5a are in a coupling connection structure, and the other end of the connecting shaft 9a and the inner end of the threaded rotating shaft 4a are also in a coupling connection structure.

The connecting shaft 9a is provided with a normally closed type unidirectional braking mechanism 10, the unidirectional braking mechanism refers to a braking mechanism with a braking function only in one motion direction, and the normally closed type unidirectional braking mechanism 10 has the following functions: when the power is off, the locking connecting shaft 9a, the connecting rotating shaft 9b, the threaded rotating shaft 4a and the motor shaft 5a cannot rotate in the positive direction, so that the electric push rod is effectively maintained in a thrust state;

the connecting rotating shaft 9b is provided with a one-way bearing 20, the one-way bearing controls the connecting rotating shaft 9b to rotate only in one direction, the one-way bearing 20 controls the connecting rotating shaft 9b to rotate only in the forward direction but not in the reverse direction, and the one-way bearing 20 locks the connecting shaft 9a, the connecting rotating shaft 9b, the threaded rotating shaft 4a and the motor shaft 5a to be incapable of reversing when the clutch mechanism 11 is switched on and switched off to enable the connecting shaft 9a and the connecting rotating shaft 9b to be in a coupling combined state in working condition operation, so that the electric push rod is effectively maintained in a reset state;

in a specific implementation, the one-way bearing 20 is supported by a support 20a on the inner wall of the second housing 17, or by another adjacent component; in fig. 2, the one-way bearing 20 is supported by a support 20a on the inner wall of the second housing 17;

the push rod device 4 is provided with a connecting plate 12 and a first shell 13, the inner end of the first shell 13 is connected with the connecting plate 12, one end of a threaded rotating shaft 4a is connected with the connecting plate 12, the connecting part between the two is in contact fit with a bearing and forms a support for the threaded rotating shaft 4a, a threaded section 4b on the threaded rotating shaft 4a is positioned in an inner cavity of the first shell 13, a nut 14 is arranged on the threaded section 4b, the threaded section 4b and the nut 14 form a threaded transmission pair, the thread angle is larger than a self-locking angle, a flange 14a is arranged on the nut 14, when the threaded rotating shaft 4a rotates, the nut 14 can axially displace along the threaded section 4b, and the flange 14a on the;

an extension type push rod 8 with an end wall 8b is arranged at the outer end of the first shell 13, a disc part 15 is arranged at the inner end of the extension type push rod 8, the disc part 15 is connected and fixed with the inner end of the extension type push rod 8, an inner hole 15a is formed in the disc part 15, the wall surface of the extension type push rod 8 is matched with a hole in the end wall 13a of the first shell 13, the disc part and the hole are in contact fit through a bearing, the outer end of the extension type push rod 8 extends out of the end wall of the first shell 13, a flange 14a on the nut 14 is located in the tube cavity of the extension type push rod 8, the diameter of the inner hole 15a in the disc part 15 is larger than the outer diameter of the nut 14, and under the action of;

in the implementation, the flange 14a is preferably made into an integral structure with the nut 14, the outer wall surface of the nut 14 and the inner hole 15a of the plate 15 are provided with a first key slot matching structure 18 formed by a sliding key and a sliding slot, in fig. 2 and 3, the outer wall surface of the nut 14 is provided with a sliding key 14b, the inner hole 15a of the plate 15 is provided with a sliding slot 15b, the sliding key 14b is positioned in the sliding slot 15b to form the first key slot matching structure 18, in the implementation, the sliding key 14b can also be arranged on the inner hole 15a of the plate 15, and the sliding slot 15b is then arranged on the outer wall surface of the nut 14; under the action of external force, the sliding key 14b can generate displacement along the sliding groove 15b, and due to the guiding and limiting effect of the sliding groove 15b on the sliding key 14b, the nut 14 can only generate axial displacement along the threaded section 4 b;

in addition, a second key groove matching structure 19 composed of a groove and a key is arranged on the outer edge of the disc 15 at the inner end of the sleeve type push rod 8 and the inner wall surface of the first shell 13, in fig. 2 and 3, the groove 15c is arranged on the outer edge of the disc 15, the key 13b is arranged on the inner wall surface of the first shell 13, and the key 13b is positioned in the groove 15c to form the second key groove matching structure 19; in implementation, the key 13b may also be disposed on the outer edge of the disc 15, and the groove 15c is then disposed on the inner wall surface of the first housing 13, and under the action of an external force, the groove 15c may generate displacement along the key 13b, and the key 13b performs a guiding and limiting function on the groove 15c, so that the sleeve type push rod 8 can only generate axial displacement relative to the first housing 13;

a first spring component 7 is arranged in the first shell 13, the first spring component 7 is positioned between a disc part 15 at the inner end of the sleeve type push rod 8 and the connecting plate 12, or the first spring component 7 is positioned between the disc part 15 at the inner end of the sleeve type push rod 8 and the end wall 13a of the first shell 13, and the pushing force of the first spring component 7 acts on the sleeve type push rod 8; as shown in embodiment 1 of fig. 2, the first spring member 7 is located between a disc 15 at the inner end of the telescopic push rod 8 and the connecting plate 12, and the pushing force of the first spring member 7 acts on the telescopic push rod 8 through the disc 15 integrally connected to the telescopic push rod 8; in implementation, the first spring members 7 may be a plurality of structures distributed uniformly along the circumference, and the number of the first spring members 7 distributed uniformly along the circumference in fig. 3 is 6; the first spring member 7 may also be a single coil spring element as shown in fig. 4, or a coil structure formed by several butterfly springs;

a second spring member 16 is arranged in the push rod device 4, the second spring member 16 is positioned between a flange 14a on the nut 14 and an end wall 8b of the sleeve type push rod 8, or the second spring member 16 is positioned between the flange 14a on the nut 14 and a disc element 15 at the inner end of the sleeve type push rod 8, and the pushing force of the second spring member 16 acts on the sleeve type push rod 8; as in embodiment 1 of fig. 2, the second spring member 16 is located between a flange 14a on the nut 14 and an end wall 8b of the telescopic push rod 8, and the tension of the second spring member 16 acts on the telescopic push rod 8 through the end wall 8b of the telescopic push rod 8; in implementation, the second spring member 16 located in the inner cavity of the sleeve type push rod 8 may be a structure form similar to that shown in fig. 3 in which a plurality of second spring members 16 are uniformly distributed along the circumference, a structure form similar to that shown in fig. 4 in which a single-ring type spring is arranged, or the like;

the first spring component 7 and the second spring component 16 are the force source components of the double-stage thrust of the present invention;

in fig. 2, the connecting shaft 9a is of an integral structure, the second housing 17 is correspondingly of an integral structure, one end of the second housing 17 is connected with the front end of the casing of the motor 5, and the other end is connected with the connecting plate 12; the connecting shaft 9a, the normally closed one-way brake mechanism 10, the connecting rotating shaft 9b, the clutch mechanism 11 and the one-way bearing 20 are arranged on the connecting rotating shaft 9b and are positioned in the second shell 17; in a specific implementation, a wall plate 17b may be disposed in the second housing 17 for auxiliary support of the connecting shaft 9 a;

the external form is in a shape of a Chinese character 'yi', and the outer end of the sleeve type push rod 8 and the outer end of the other end component coaxial with the sleeve type push rod 8 are respectively provided with a connecting lug 8a positioned on the same axis; in the embodiment 1 shown in fig. 2, the component of the other end coaxial with the sleeve type push rod 8 is the motor 5, that is, the outer end of the sleeve type push rod 8 and the rear end (that is, the outer end) of the casing of the motor 5 at the other end coaxial with the sleeve type push rod 8 are respectively provided with the connecting lugs 8a located on the same axis, that is, the connecting lugs 8a at both ends of the present invention; fig. 2 is a schematic structural view of a normally closed brake formed by the braking mechanism 1 according to the present invention, wherein the engaging lug 8a is used for being pivotally connected to a driving end 3c of a braking arm 3 in the braking mechanism;

the normally closed one-way brake mechanism 10 and the clutch mechanism 11 are commercially available existing products of electromagnetic type structure. In this embodiment, the normally closed one-way brake mechanism 10 is fixed to a plate 17a in the second housing 17, and the set screw 10a of the normally closed one-way brake mechanism 10 is connected to the plate 17 a; a shaft sleeve matched with a sliding key is arranged in a central hole of a brake disc of the normally closed type unidirectional brake mechanism 10, a unidirectional bearing is arranged in the central hole of the shaft sleeve, the shaft sleeve is supported and fixed on a connecting shaft 9a through the unidirectional bearing, the brake disc can axially move along the shaft sleeve through the matching of the sliding key of the shaft sleeve, and the connecting shaft 9a can only reversely rotate relative to the brake disc; when the normally closed type unidirectional braking mechanism 10 is closed, the axial movement of the brake disc is compressed, the brake disc cannot rotate, the connecting shaft 9a cannot rotate forwards or backwards under the action of the unidirectional bearing, and the normally closed type unidirectional braking mechanism 10 is openedOpenerWhen the brake disc moves axially and returns, the brake disc can rotate freely, and the connecting shaft 9a can rotate freely; the clutch mechanism 11 is provided with a driving disc and a driven disc, a shaft sleeve matched with a sliding key is arranged in a central hole of the driving disc, the shaft sleeve is connected and fixed at one end part of the connecting rotating shaft 9b, the driving disc can axially move along the shaft sleeve through being matched with the sliding key of the shaft sleeve, the driven disc is connected and fixed at one end of the connecting shaft 9a, and when the clutch mechanism 11 is closed, the driving disc axially moves and is combined with the driven disc, namely the connecting shaft 9a and the connecting rotating shaft 9b form coupling combination; the connecting rotating shaft 9b is provided with a one-way bearing 20, the one-way bearing 20 is of a structure in the prior art, due to the effect of the one-way bearing, when the clutch mechanism 11 is powered on and closed, the connecting shaft 9a and the connecting rotating shaft 9b can only transmit forwards and can not rotate backwards, when the clutch mechanism 11 is powered off and separated, the driving disc is separated from the driven disc, and the connecting shaft 9a can rotate freely. It should be noted that, according to the change of the setting position of the normally closed type one-way brake mechanism 10, the connection and fixation manner is not unique, but the matching connection relationship with the connection shaft 9a is the same, and in embodiment 1, the normally closed type one-way brake mechanism is used for braking in a normal modeThe braking mechanism 10 is fixed on the plate 17a in the second housing 17, and in an implementation, can be fixed on other adjacent components.

Example 2, see figure 5.

The structure of example 2 was modified to the structure shown in fig. 2. The pusher device 4 in this example is the same as that described in example 1; with respect to embodiment 1 shown in fig. 2, a modified structure of this example is: one end of the connecting shaft 9a and the inner end of the threaded rotating shaft 4a are integrally arranged, that is, the connection between one end of the connecting shaft 9a and the inner end of the threaded rotating shaft 4a is a connection structure which integrates the two, and when the connection between one end of the connecting shaft 9a and the inner end of the threaded rotating shaft 4a is in the form of an integral connection structure, the second housing 17 may not be provided with the wall plate 17b shown in fig. 2; otherwise, the same procedure as in example 1 was repeated.

Example 3, see figure 6.

The structure of example 3 is another variation of the structure shown in fig. 2. The pusher device 4 in this example is the same as that described in example 1; with respect to embodiment 1 shown in fig. 2, the present embodiment is distinguished in that: one end of the connecting rotating shaft 9b and the front end of the motor shaft 5a are integrated, that is, the connecting between one end of the connecting rotating shaft 9b and the front end of the motor shaft 5a is a connecting structure for integrating the two, in this structure, the connecting rotating shaft 9b is equivalent to an extending shaft section of the front end of the motor shaft 5a, when the connecting between one end of the connecting rotating shaft 9b and the front end of the motor shaft 5a is an integrated connecting structure, the second housing 17 may not be provided with the supporting member 20a shown in fig. 2, the one-way bearing 20 may be provided on the front end plate of the housing of the motor 5, that is, the one-way bearing 20 is supported by the front end plate of the housing of the motor 5, in the implementation, the one-way bearing 20 may also be located at the rear end of the rotating shaft 5a of the motor, that is; in addition, one end of the connecting shaft 9a and the inner end of the threaded rotating shaft 4a are integrally formed, that is, the connection between one end of the connecting shaft 9a and the inner end of the threaded rotating shaft 4a is a connection structure form integrating the two into one, when the connection between one end of the connecting shaft 9a and the inner end of the threaded rotating shaft 4a is a connection structure form integrating the two into one, the wall plate 17b shown in fig. 2 may not be arranged in the second housing 17, see fig. 6 and 2; otherwise, the same procedure as in example 1 was repeated.

In specific implementation, the implementation structure shown in fig. 2 can be further modified as follows: one end of the connecting rotating shaft 9b and the front end of the motor shaft 5a are integrated, namely, the connection between one end of the connecting rotating shaft 9b and the front end of the motor shaft 5a is in a connecting structure form integrating the two, and a coupling connecting structure is adopted between one end of the connecting shaft 9a and the inner end of the threaded rotating shaft 4 a.

Example 4, see figure 7.

In the illustration of fig. 7, a speed reducing mechanism 6 is provided, that is, a speed reducing mechanism 6 is additionally provided on the basis of the "push rod device 4, the motor 5, and the one-way control mechanism 9 for controlling the pushing operation condition" of the foregoing embodiment, the speed reducing mechanism 6 has an input shaft 6a and an output shaft 6b, and the speed reducing mechanism 6 is a prior art structure;

in fig. 7, the connecting shaft 9a is a segmented structure of a first segmented body 9a01 and a second segmented body 9a 02;

the rotating shafts in the transmission system of the embodiment shown in fig. 7 include the motor shaft 5a, the threaded rotating shaft 4a, the first and second segments 9a01 and 9a02 of the connecting shaft 9a, the connecting rotating shaft 9b, and the input shaft 6a and the output shaft 6b of the speed reducing mechanism 6; one end of the connecting rotating shaft 9b is connected with the motor shaft 5a, the other end of the connecting rotating shaft 9b is connected with one end of the clutch mechanism 11, the other end of the clutch mechanism 11 is connected with one end of a second sectional body 9a02 of the connecting shaft 9a, the other end of the second sectional body 9a02 is connected with an input shaft 6a of the speed reducing mechanism 6, an output shaft 6b of the speed reducing mechanism 6 is connected with one end of a first sectional body 9a01 of the connecting shaft 9a, and the other end of the first sectional body 9a01 is connected with the inner end of the threaded rotating shaft 4 a; when the motor 5 operates, the motor shaft 5a can drive the connecting rotating shaft 9b, the second sectional body 9a02, the input shaft 6a and the output shaft 6b of the speed reducing mechanism 6, and the first sectional body 9a01 and the threaded rotating shaft 4a to rotate forward, and in an operating condition, when the threaded rotating shaft 4a rotates reversely, the first sectional body 9a01, the output shaft 6b of the speed reducing mechanism 6, the input shaft 6a and the second sectional body 9a02 rotate reversely;

the structure of the push rod device 4 shown in fig. 7 is the same as that of embodiment 1, and refer to fig. 7 and the structure shown in fig. 2 and the related description of embodiment 1;

in a specific embodiment, one end of the connecting rotating shaft 9b is integrated with the front end of the motor shaft 5a, that is, the connecting between one end of the connecting rotating shaft 9b and the front end of the motor shaft 5a is a connecting structure for integrating the two, the connecting rotating shaft 9b is equivalent to an extending shaft section of the front end of the motor shaft 5a, when the connecting between one end of the connecting rotating shaft 9b and the front end of the motor shaft 5a is an integrated connecting structure, the one-way bearing 20 is disposed on the front end plate of the casing of the motor 5, that is, the one-way bearing 20 may be supported by the front end plate of the casing of the motor 5, or other components may be disposed in the second sub-casing 1702 of the second casing 17; in the implementation, one end of the connecting rotating shaft 9b can be connected with the front end of the motor shaft 5a through a coupling; the other end of the second segment 9a02 and the shaft end of the input shaft 6a of the speed reducing mechanism 6 are integrated into a connecting structure, and in the implementation, the connecting structure can also be a coupling connection; the connection between one end of the first segment 9a01 and the shaft end of the output shaft 6b of the speed reducing mechanism 6 is a connection structure form integrating the two, and in the implementation, the connection can be a coupling connection; the other end of the first sectional body 9a01 is connected with the inner end of the threaded rotating shaft 4a through a coupling; in an implementation, when one end of the first segment 9a01 and the output shaft 6b of the speed reducing mechanism 6 are a coupling connection structure, the other end of the first segment 9a01 and the inner end of the threaded rotating shaft 4a can be provided as an integrated connection structure;

the normally closed one-way brake mechanism 10 is arranged on the first sectional body 9a01, and the one-way bearing 20 is arranged on the connecting rotating shaft 9 b; the connection mode and the action effect of the one-way brake mechanism 10 and the action effect of the one-way bearing 20 are the same as those of embodiment 1;

the second casing 17 is a sub-casing structure of a first sub-casing 1701 and a second sub-casing 1702, and corresponds to a first segment 9a01 and a second segment 9a02 of the connecting shaft 9a, one end of the first sub-casing 1701 is connected with the side wall of the adjacent speed reducing mechanism 6, the other end of the first sub-casing 1701 is connected with the connecting plate 12, one hundred million end of the second sub-casing 1702 is connected with the side wall of the adjacent speed reducing mechanism 6, and the other end of the second sub-casing 1702 is connected with the front end of the casing of the motor 5; in fig. 7, one end of the first sub-housing 1701 and the adjacent side wall of the reduction mechanism 6 are inner side walls of the reduction mechanism 6, and one hundred million end of the second sub-housing 1702 and the adjacent side wall of the reduction mechanism 6 are outer side walls of the reduction mechanism 6;

the first segment body 9a01 and the normally closed one-way brake mechanism 10 connected to the segment body are positioned in the first segment body 1701, the second segment body 9a02, the connecting rotating shaft 9b and the one-way bearing 20 arranged on the connecting rotating shaft 9b, and the clutch mechanism 11 connected with the second segment body 9a02 and the connecting rotating shaft 9b are positioned in the second segment body 1702; in a specific implementation, a set screw 10a in the normally closed one-way braking mechanism 10 is connected to the inner side wall of the speed reducing mechanism 6;

the external form is in a shape of a Chinese character 'yi', and the outer end of the sleeve type push rod 8 and the outer end of the other end component coaxial with the sleeve type push rod 8 are respectively provided with a connecting lug 8a positioned on the same axis; in fig. 7, the components of the other end of the bushing push rod 8 which is coaxial with the bushing push rod 8 are the motor 5, that is, the outer end of the bushing push rod 8 and the wall of the rear end (that is, the outer end) of the casing of the motor 5 which is coaxial with the bushing push rod 8 are respectively provided with the connecting lugs 8a which are located on the same axis, that is, the connecting lugs 8a at the two ends of the present invention;

example 5, see figure 8.

The structure of the embodiment 5 shown in fig. 8 is based on the modification of the structure shown in fig. 7, the appearance of the embodiment shown in fig. 7 is in a shape like a Chinese character 'yi', and the appearance of the embodiment 5 shown in fig. 8 is like an 'L', which is called as an 'L' shape in the specification;

in fig. 8, a speed reducing mechanism 6 is provided, that is, the speed reducing mechanism 6 is additionally provided on the basis of the "push rod device 4, the motor 5, and the one-way control mechanism 9 for controlling the pushing operation condition" in embodiment 1, the speed reducing mechanism 6 has an input shaft 6a and an output shaft 6b, and the speed reducing mechanism 6 has a prior art structure;

in fig. 8, the connecting shaft 9a is a segmented structure of a first segmented body 9a01 and a second segmented body 9a 02;

the rotating shafts in the transmission system of the embodiment shown in fig. 8 include the motor shaft 5a, the threaded rotating shaft 4a, the first and second segments 9a01 and 9a02 of the connecting shaft 9a, the connecting rotating shaft 9b, and the input shaft 6a and the output shaft 6b of the speed reducing mechanism 6; one end of the connecting rotating shaft 9b is connected with the motor shaft 5a, the other end of the connecting rotating shaft 9b is connected with one end of the clutch mechanism 11, the other end of the clutch mechanism 11 is connected with one end of a second sectional body 9a02 of the connecting shaft 9a, the other end of the second sectional body 9a02 is connected with an input shaft 6a of the speed reducing mechanism 6, an output shaft 6b of the speed reducing mechanism 6 is connected with one end of a first sectional body 9a01 of the connecting shaft 9a, and the other end of the first sectional body 9a01 is connected with the inner end of the threaded rotating shaft 4 a; when the motor 5 operates, the motor shaft 5a can drive the connecting rotating shaft 9b, the second sectional body 9a02, the input shaft 6a and the output shaft 6b of the speed reducing mechanism 6, and the first sectional body 9a01 and the threaded rotating shaft 4a to rotate forward, and in an operating condition, when the threaded rotating shaft 4a rotates reversely, the first sectional body 9a01, the output shaft 6b of the speed reducing mechanism 6, the input shaft 6a and the second sectional body 9a02 rotate reversely;

the implementation structure of the push rod device 4 shown in fig. 8 is the same as that of the embodiment 1, and refer to fig. 8 and the structure shown in fig. 2 and the related description of the embodiment 1;

in a specific implementation, one end of the connecting rotating shaft 9b and the front end of the motor shaft 5a are integrated, that is, the connection between one end of the connecting rotating shaft 9b and the front end of the motor shaft 5a is a connection structure form that the two are integrated, the connecting rotating shaft 9b is an extended shaft section that is equivalent to the front end of the motor shaft 5a, when the connection between one end of the connecting rotating shaft 9b and the front end of the motor shaft 5a is an integrated connection structure, the one-way bearing 20 is disposed on the front end plate of the casing of the motor 5, that is, the one-way bearing 20 may be supported by the front end plate of the casing of the motor 5, or other component supports may be disposed in the second sub-casing 1702 of the second casing 17, in an implementation, one end of the connecting rotating shaft 9b and the front; the other end of the second segment 9a02 and the shaft end of the input shaft 6a of the speed reducing mechanism 6 are integrated into a connecting structure, and in the implementation, the connecting structure can also be a coupling connection; one end of the first segment 9a01 and the output shaft 6b of the speed reducing mechanism 6 are in a coupling connection structure, and the other end of the first segment 9a01 and the inner end of the threaded rotating shaft 4a are in a connection structure form which integrates the two into a whole;

the second casing 17 is a sub-casing structure of a first sub-casing 1701 and a second sub-casing 1702, and corresponds to a first segment 9a01 and a second segment 9a02 of the connecting shaft 9a, one end of the first sub-casing 1701 is connected with the adjacent side wall of the speed reducing mechanism 6, the other end of the first sub-casing 1701 is connected with the connecting plate 12, one end of the second sub-casing 1702 is connected with the adjacent side wall of the speed reducing mechanism 6, and the other end of the second sub-casing 1702 is connected with the front end of the casing of the motor 5; in fig. 8, one end of the first sub-housing 1701 and the adjacent side wall of the speed reducing mechanism 6 are inner side walls of the speed reducing mechanism 6, and one end of the second sub-housing 1702 and the adjacent side wall of the speed reducing mechanism 6 are also inner side walls of the speed reducing mechanism 6;

the first segment body 9a01 and the normally closed one-way brake mechanism 10 connected to the segment body are positioned in the first segment body 1701, the second segment body 9a02, the connecting rotating shaft 9b and the one-way bearing 20 arranged on the connecting rotating shaft 9b, and the clutch mechanism 11 connected with the second segment body 9a02 and the connecting rotating shaft 9b are positioned in the second segment body 1702; in a specific implementation, the positioning screw 10a) of the normally closed one-way braking mechanism 10 is connected with the plate 17a of the second housing 17;

the outer end of the sleeve type push rod 8 and the outer end of the other end component which is coaxial with the sleeve type push rod 8 are respectively provided with a connecting lug 8a which is positioned on the same axis; in fig. 8, the component at the other end of the coaxial line with the sleeve type push rod 8 is the speed reducing mechanism 6, that is, the outer end of the sleeve type push rod 8 and the outer side wall of the speed reducing mechanism 6 at the other end of the coaxial line with the sleeve type push rod 8 are respectively provided with the engaging lugs 8a located on the same axial line, that is, the engaging lugs 8a at both ends of the present invention;

in the specific implementation:

the inner side wall of the speed reducing mechanism 6 can be provided with a transition connecting piece 6c connected with the plate 17a, the transition connecting piece 6c is connected with the plate 17a, which is beneficial to the integrity and stability of the appearance structure of the electric push rod device, and plays a role in protecting the coupling structure between the output shaft 6b of the speed reducing mechanism and the inner end of the first sectional body 9a 01.

In the configuration shown in fig. 8, the reduction mechanism 6 further includes an intermediate transmission shaft 6 e. The first segment body 9a01 may be provided on the outer end or the inner end of the intermediate transmission shaft 6e, and the normally closed one-way brake mechanism 10 is provided on the first segment body 9a 01.

Example 6, see figure 9.

Fig. 9 shows a structure modified from that shown in fig. 2, and shows an example of application to a normally closed brake.

The embodiment 6 also comprises the push rod device 4, the motor 5 and a one-way control mechanism 9 for controlling the pushing operation condition;

the structural modification of the present embodiment mainly involves a change in the positions where the first spring member 7 and the second spring member 16 are disposed in the push rod device 4; in the embodiment 1 shown in fig. 2, the first spring member 7 provided in the first housing 13 is located between the disc 15 at the inner end of the telescopic push rod 8 and the connecting plate 12, and the second spring member 16 is located between the flange 14a on the nut 14 and the end wall 8b of the telescopic push rod 8, whereas in the embodiment 6, the first spring member 7 is located between the disc 15 at the inner end of the telescopic push rod 8 and the end wall 13a of the first housing 13, and the second spring member 16 is located between the flange 14a on the nut 14 and the disc 15 at the inner end of the telescopic push rod 8; the thrusts of the first spring member 7 and the second spring member 16 in embodiment 1 and the thrusts of the first spring member 7 and the second spring member 16 in embodiment 6 all act on the telescopic push rod 8, and the effects are the same, and the first spring member 7 realizes the first thrust and then forms a state that the second spring member 16 is further compressed and stores energy, so that the superimposed thrusts are realized; the other structure of this embodiment 6 is the same as that of embodiment 1 shown in fig. 2.

The working process of the structural embodiment shown in FIG. 9 is as follows:

the principle structure and the action effect of the brake mechanism 1 shown in fig. 9 are the same as those of the brake mechanism 1 shown in fig. 2, and the difference between the two is that the respective supporting points Z are located at different positions; the fulcrum Z on the brake arm 3 shown in fig. 2 is located at the middle lower part, the end point of the brake end 3a is the lower end of the brake arm 3, and in the process of braking, the sleeve type push rod 8 extends outwards to drive the driving end 3c of the brake arm 3 to swing outwards; while the fulcrum Z on the brake arm 3 shown in fig. 9 is located at the lower end of the brake arm 3 shown in the figure, and the end point of the brake end 3a is located on the arm section at the middle lower part of the brake arm 3, in the process of braking, the sleeve type push rod 8 is retracted inwards to drive the driving end 3c of the brake arm 3 to swing inwards; both of which are prior art structures. The operation of the embodiment of the structure shown in fig. 9 is briefly described as follows:

1) the embodiment 6 of the utility model provides a working condition at normal close formula stopper relieving braking in-process:

in the braking state shown in fig. 9, the first spring member 7 is in the first thrust state after being extended after the first-stage braking, the second spring member 16 is in the superimposed thrust state under the superimposed braking state of being further compressed and storing energy, the normally closed one-way brake mechanism 10 in this state is in the closed state, the locking connecting shaft 9a cannot rotate forward, the stable and reliable superimposed thrust state of the second spring member 16 is maintained, the sleeve type push rod 8 is in the state after being retracted inward, and a distance shown in fig. 9 is kept between the outer side surface of the flange 14a and the outer end of the threaded section 4b on the nut 14 and the inner side surface of the end wall 8b of the sleeve type push rod 8.

When the brake needs to be released, namely the thrust state of the electric push rod is released, the normally closed one-way brake mechanism 10 is electrified and opened, the forward locking state of the connecting shaft 9a is released, the clutch mechanism 11 is electrified and closed simultaneously, so that the connecting shaft 9a and the connecting rotating shaft 9b are in a coupling combined state, the connecting shaft 9a is in a forward rotatable state, in the state, the compressed second spring member 16 releases energy and stretched thrust in the forward rotatable state of the threaded rotating shaft 4a, the flange 14a on the nut 14 drives the nut 14 to displace along the threaded section 4b to the outer end, so that the threaded rotating shaft 4a generates forward rotation, the motor 5 is electrified, the motor shaft 5a drives the connecting rotating shaft 9b, the connecting shaft 9a and the threaded rotating shaft 4a to rotate in the forward direction, namely the energy and stretched thrust action of the second spring member 16 assists the motor shaft 5a to drive the threaded rotating shaft 4a to rotate in the forward direction, the two resultant forces enable the threaded rotating shaft 4a to rapidly rotate in the forward direction, so that the displacement of the nut 14 towards the outer end along the threaded section 4b is accelerated until the outer side surface of the flange plate 14a on the nut 14 is attached to and pressed against the inner side surface of the end wall 8b of the sleeve type push rod 8, the extension stroke of the second spring member 16 is completed, the thrust of the extension trend of the second spring member 16 acting on the sleeve type push rod 8 is eliminated, the superimposed thrust is eliminated, and the superimposed brake is eliminated; in the process of removing the superimposed thrust, the second spring component 16 releases energy and the stretched thrust acts on the motor shaft 5a to drive the threaded rotating shaft 4a to rotate in the positive direction, so that the time for removing the thrust is shortened, the motor is assisted to start, and the energy consumption of the motor can be reduced; along with the motor shaft 5a continuously driving the connecting rotating shaft 9b, the connecting shaft 9a and the threaded rotating shaft 4a to rotate in the forward direction, the nut 14 continuously moves towards the outer end along the threaded section 4b, the flange 14a on the nut 14 pushes the sleeve type push rod 8 to extend towards the outer end, the connecting lugs 8a at the two ends of the novel brake device push the driving ends 3c of the two brake arms to swing towards the outer end, the end points of the braking ends 3a of the two brake arms move towards the outer end until the friction plate 3d and the braked part are separated to a certain gap, the first spring member 7 is compressed, one-time thrust is released, namely one-time braking is released, in this state, the motor 5 is powered off and stops running, the one-way bearing 20 locks the connecting rotating shaft 9b along with the one-way bearing and can not rotate in the reverse direction, the connecting shaft 9a, the threaded rotating shaft 4a and the motor shaft 5a can not rotate in the reverse, therefore, the electric push rod is effectively maintained in a stable reset state, namely, the brake is in a stable opening state (namely, brake is released), and in the state, the outer side surface of the flange plate 14a on the nut 14 and the inner side surface of the end wall 8b of the sleeve type push rod 8 are in a joint and pressing state.

2) The embodiment 6 of the utility model provides a working condition in the braking process is implemented at normal close formula stopper:

when braking is needed, namely the electric push rod realizes a thrust state, the clutch mechanism 11 is powered off and is reset to a separated state, the coupling combination state of the connecting shaft 9a and the connecting rotating shaft 9b is released, namely the locking of the connecting shaft 9a is released, so that the connecting shaft 9a is in a reversible state, and the normally closed type one-way brake mechanism 10 does not influence the reverse rotation of the connecting shaft 9a under the power-off closed state, in the state, the first spring component 7 in a compressed state is expanded, the sleeve type push rod 8 is pushed to retract inwards through a disc component 15 acting on the inner end of the sleeve type push rod 8, while the sleeve type push rod 8 retracts inwards, because the outer side surface of the flange 14a on the nut 14 and the inner side surface of the end wall 8b of the sleeve type push rod 8 are in a joint and pressing state, the end wall 8b of the sleeve type push rod 8, namely, the nut 14 moves towards the inner end along the thread section 4b, the thread rotating shaft 4a is driven to enter a reverse rotation state in the process that the nut 14 moves towards the inner end along the thread section 4b, and the connecting shaft 9a is in the reverse rotation state; under the action of the continued stretching thrust of the first spring member 7, as the sleeve type push rod 8 continues to retract inwards, the sleeve type push rod enters a first pushing state, the connecting lugs 8a at the two ends of the novel brake device respectively drive the driving ends 3c of the two brake arms to swing inwards, the brake members 3b at the braking ends of the two brake arms are quickly folded inwards along with the inner sides until the friction sheet 3d is quickly attached to and pressed against the braking surface of the braked part, so that the first pushing force is realized, the sleeve type push rod 8 stops retracting inwards in the process that the friction sheet 3d is quickly attached to and pressed against the braking surface of the braked part, because of the continued stretching thrust of the first spring member 7 and the kinetic energy formed by the rotating member in the rotating process, the threaded rotating shaft 4a continues to rotate reversely, when the nut 14 continues to move inwards along the threaded section 4b, the flange 14a on the nut 14 is separated from the inner side surface 8b of, the flange 14a starts to compress the second spring member 16, after the flange 14a is separated from the inner side surface of the end wall 8b of the sleeve type push rod 8, the thrust of the first spring member 7 continuing to expand acts on the sleeve type push rod 8, and the driving end 3c of the brake arm is driven to swing inwards through the connecting lug 8a, so that the friction plate 3d and the braking surface of the braked member are quickly attached and pressed to enter first-stage braking until first-stage braking is realized;

when the first spring member 7 realizes a first thrust, i.e. a first-stage effective brake, or when the first spring member 7 performs a first thrust, i.e. a first-stage brake, through the action of a stretching thrust, when a brake gap is enlarged due to abrasion of a friction plate, the first spring member 7 will continue to stretch for a certain stroke, and although the stroke of the first spring member 7, which continues to stretch, can affect the first thrust effect to a certain extent, the stroke of the first spring member 7, which continues to stretch, firstly enables a related rotating member to continue to form kinetic energy, secondly compensates for the enlarged brake gap, and enables the friction plate and a braked member to still be in a state of being attached and compressed; in this state, because the rotating members such as the threaded rotating shaft 4a, the connecting shaft 9a and the motor shaft 5a are in the state of reverse rotation, the threaded rotating shaft 4a continues to reverse rotation, the nut 14 continues to move towards the inner end along the threaded section 4b, as the nut 14 continues to further move towards the inner end along the threaded section 4b, the second spring member 16 is further compressed, the distance between the flange 14a on the nut 14 and the inner side surface of the end wall 8b of the sleeve type push rod 8 increases, until the nut 14 stops moving towards the inner end when the threaded rotating shaft 4a stops rotating in the reverse direction, the outer side surface of the flange 14a on the nut 14 is separated from the inner side surface of the end wall 8b of the sleeve type push rod 8 to the distance shown in fig. 9, and the second spring member 16 is in the state of being further compressed and storing energy, so as to realize superimposed thrust, when the threaded rotating shaft 4a stops rotating reversely, the normally closed one-way brake device 10 in the closed state locks the connecting shaft 9a to be incapable of rotating forward (the threaded rotating shaft 4a and the connecting shaft 9a are incapable of rotating forward accordingly), so that the second spring member 16 is in a stable state of being further compressed and storing energy, and the electric push rod is effectively maintained in a stable thrust state with reliable pushing effect, in this state, the thrust of the extension trend generated by the second spring member 16 which is further compressed and stored energy acts on the sleeve type push rod 8, so that the sleeve type push rod 8 continuously generates the trend of retracting inwards, and the driving ends 3c of the two braking arms are further driven to swing inwards, namely, on the basis of primary braking, the braking members 3b of the braking ends 3a of the two braking arms obtain a braking power source again to further fold inwards, the friction plate obtains the superimposed braking acting force to realize the superimposed braking on the braked member, and the normally closed one-way braking device 10 in a closed state locks the connecting shaft 9a to be incapable of rotating in the positive direction, so that the brake is effectively maintained in a stable state with reliable braking effect; the superimposed thrust realized by the second spring member 16 in the further compressed and energy-accumulating state is firstly realized under the thrust action of the first spring member 7, namely, the superimposed thrust is further obtained under the state of realizing first-stage effective braking, so that the reliability of the pushing effect, namely the braking effect is improved; secondly, when the friction plate leads to the brake clearance to be enlarged due to abrasion, the friction plate and the braked component obtain the superimposed thrust realized by the second spring component 16 under the state of being jointed and compressed, and the enlarged brake clearance enables the stroke of the first spring component 7 which is continuously stretched to influence the effect of the first thrust to a certain extent, but the first spring component 7 continuously stretches the thrust of the stroke, so that the related rotating component continuously forms kinetic energy, and the continuously formed kinetic energy can increase the effect of further compressing and storing the energy of the second spring component 16, namely the effect of increasing the superimposed thrust realized by the second spring component 16, so that the normally closed brake applied by the utility model can still be in a stable and reliable brake state; compared with the prior art, the reliability of the braking effect is improved.

The structure of the putter device 4 according to embodiments 2 to 5 is the same as that of the putter device 4 according to embodiment 1, and in this embodiment of the present invention, the principle structure and the operation effect of the putter device 4 having the structure shown in fig. 9 are the same as those of the putter device 4 according to embodiment 1, that is, the putter device 4 according to embodiments 2 to 5 may also be the putter device 4 having the structure shown in fig. 9.

In fig. 2 and fig. 9, the outer end of the sleeve type push rod 8 and the outer end of the other end member coaxial with the sleeve type push rod 8 are respectively provided with a connecting lug 8a located on the same axis, and the two connecting lugs 8a are respectively hinged with the driving ends 3c of the two brake arms in the brake mechanism 1; however, since the connecting members provided in the conventional brake mechanism 1 are different to some extent, when the present invention is applied to a brake, the connecting manner with the brake mechanism 1 is not unique.

Fig. 10 shows another form of the connection ear 8a at both ends of the present invention and the brake mechanism 1, wherein the drive ends 3c of the two brake arms in the illustrated brake mechanism are connected to the triangular rod system member 3e with the existing structure, and in the illustration, the connection ear 8a at the lower end of the present invention is connected to the fixing member hinge shaft which is additionally arranged, and the connection ear 8a at the upper end in the illustration is connected to the drive rod hinge shaft in the triangular rod system member 3 e. That is, it shows that when the engaging lugs 8a at the two ends of the utility model are connected with the pushed object (device or mechanism), the engaging lug 8a at one end is connected with the hinge shaft of the fixing piece, and the engaging lug 8a at the other end is connected with the pushed object (device or mechanism, etc.).

The various embodiments described in the embodiments of this specification are not all the deformation structures of the present invention, so that other embodiments based on the present invention all belong to the scope covered by the present invention.

Claims

1. The utility model provides a stack formula thrust electric putter, characterized by:

comprises a push rod device (4), a motor (5) and a one-way control mechanism (9) for controlling the pushing operation condition;

the one-way control mechanism (9) comprises a second shell (17), a connecting shaft (9a) and a connecting rotating shaft (9b) which are positioned in the shell, and a clutch mechanism (11) is arranged;

the rotating shaft in the transmission system comprises a motor shaft (5a), a threaded rotating shaft (4a) in a push rod device (4), a connecting shaft (9a) in a one-way control mechanism (9) and a connecting rotating shaft (9b), one end of the connecting rotating shaft (9b) is connected with the motor shaft (5a), the other end of the connecting rotating shaft (9b) is connected with one end of a clutch mechanism (11), the other end of the clutch mechanism (11) is connected with one end of the connecting shaft (9a), and the other end of the connecting shaft (9a) is connected with the inner end of the threaded rotating shaft (4 a); the motor shaft (5a) can drive the connecting rotating shaft (9b), the connecting shaft (9a) and the threaded rotating shaft (4a) to rotate in the forward direction, and when the threaded rotating shaft (4a) rotates in the reverse direction, the connecting shaft (9a) rotates in the reverse direction;

a normally closed one-way brake mechanism (10) is arranged on the connecting shaft (9a), and a one-way bearing (20) is arranged on the connecting rotating shaft (9 b);

the push rod device (4) is provided with a connecting plate (12) and a first shell (13), the inner end of the first shell (13) is connected with the connecting plate (12), one end of a threaded rotating shaft (4a) is connected with the connecting plate (12), a threaded section (4b) at the other end of the threaded rotating shaft (4a) is located in the first shell (13), a nut (14) is arranged on the threaded section (4b), the threaded section (4b) and the nut (14) form a threaded transmission pair, the thread angle is larger than a self-locking angle, a flange plate (14a) is arranged on the nut (14), when the threaded rotating shaft (4a) rotates, the nut (14) can axially displace along the threaded section (4b), and the flange plate (14a) on the nut (14) displaces along with the displacement;

the outer end of the first shell (13) is provided with a sleeve type push rod (8) with an end wall (8b), the inner end of the sleeve type push rod (8) is provided with a disc piece (15), the disc piece (15) is connected and fixed with the inner end of the sleeve type push rod (8), the wall surface of the sleeve type push rod (8) is matched with a hole in the end wall (13a) of the first shell (13), the outer end of the sleeve type push rod (8) extends out of the end wall (13a) of the first shell (13), a flange plate (14a) on the nut (14) is positioned in the cavity of the sleeve type push rod (8), the diameter of an inner hole (15a) in the disc piece (15) is larger than the outer diameter of the nut (14), and the sleeve type push rod (8) can axially extend out or retract relative to the first shell (13) under the action;

a first spring component (7) is arranged in the first shell (13), the first spring component (7) is positioned between a disc piece (15) at the inner end of the sleeve type push rod (8) and a connecting plate (12), or between the disc piece (15) at the inner end of the sleeve type push rod (8) and an end wall (13a) of the first shell (13), and the pushing force of the first spring component (7) acts on the sleeve type push rod (8);

a second spring component (16) is arranged in the push rod device (4), the second spring component (16) is positioned between a flange (14a) on the nut (14) and an end wall (8b) of the sleeve type push rod (8), or between the flange (14a) on the nut (14) and a disc part (15) at the inner end of the sleeve type push rod (8), and the pushing force of the second spring component (16) acts on the sleeve type push rod (8);

the outer end of the sleeve type push rod (8) and the outer end of the other end component which is coaxial with the sleeve type push rod (8) are respectively provided with a connecting lug (8a) which is positioned on the same axis.

2. The stacked thrust electric putter as claimed in claim 1, wherein:

the connecting shaft (9a) is of an integral structure, the second shell (17) is of an integral structure and corresponds to the connecting shaft (9a) of the integral structure, one end of the second shell (17) is connected with the front end of the shell of the motor (5), and the other end of the second shell is connected with the connecting plate (12);

a positioning screw (10a) of the normally closed one-way brake mechanism (10) is connected with a plate (17a) in a second shell (17);

the one-way bearing (20) is supported by a support (20a) on the inner wall of the second housing (17);

the external form is in a straight line shape, and the outer end of the sleeve type push rod (8) and the rear end of the shell of the motor (5) at the other end coaxial with the sleeve type push rod (8) are respectively provided with the connecting lugs (8a) which are positioned on the same axis.

3. The stacked thrust electric putter as claimed in claim 1, wherein:

a speed reducing mechanism (6) is arranged, and the connecting shaft (9a) is of a segmented body structure of a first segmented body (9a01) and a second segmented body (9a 02);

the rotating shaft in the transmission system comprises the motor shaft (5a), the threaded rotating shaft (4a), a first subsection body (9a01) and a second subsection body (9a02) of the connecting shaft (9a), the connecting rotating shaft (9b), and an input shaft (6a) and an output shaft (6b) of the speed reducing mechanism (6);

one end of the connecting rotating shaft (9b) is connected with the motor shaft (5a), the other end of the connecting rotating shaft (9b) is connected with one end of the clutch mechanism (11), the other end of the clutch mechanism (11) is connected with one end of the second sectional body (9a02), the other end of the second sectional body (9a02) is connected with an input shaft (6a) of the speed reducing mechanism (6), an output shaft (6b) of the speed reducing mechanism (6) is connected with one end of the first sectional body (9a01), and the other end of the first sectional body (9a01) is connected with the inner end of the threaded rotating shaft (4 a); the motor shaft (5a) can drive the input shaft (6a) and the output shaft (6b) which are connected with the rotating shaft (9b), the second sectional body (9a02) and the speed reducing mechanism (6), and the first sectional body (9a01) and the threaded rotating shaft (4a) to rotate in the forward direction, and in the operating condition, when the threaded rotating shaft (4a) rotates in the reverse direction, the first sectional body (9a01), the output shaft (6b) and the input shaft (6a) of the speed reducing mechanism (6) and the second sectional body (9a02) rotate in the reverse direction along with the first sectional body (9a 01);

the normally closed one-way brake mechanism (10) is arranged on the first sectional body (9a 01);

the second shell (17) is a shell dividing structure of a first shell dividing body (1701) and a second shell dividing body (1702), a first section body (9a01) and a second section body (9a02) corresponding to the connecting shaft (9a), one end of the first shell dividing body (1701) is connected with the side wall of the adjacent speed reducing mechanism (6), the other end of the first shell dividing body is connected with the connecting plate (12), one end of the second shell dividing body (1702) is connected with the side wall of the adjacent speed reducing mechanism (6), and the other end of the second shell dividing body is connected with the front end of the shell of the motor (5);

the first subsection body (9a01) and the normally closed one-way brake mechanism (10) connected with the subsection body are positioned in the first sub-shell (1701), the second subsection body (9a02), the connecting rotating shaft (9b) and the one-way bearing (20) arranged on the connecting rotating shaft (9b), and the clutch mechanism (11) connected with the second subsection body (9a02) and the connecting rotating shaft (9b) are positioned in the second sub-shell (1702).

4. A stacked thrust electric putter as claimed in claim 3, wherein:

the one-way bearing (20) is supported by the front end plate of the shell of the motor (5);

a positioning screw (10a) in the normally closed one-way braking mechanism (10) is connected to the inner side wall of the speed reducing mechanism (6);

5. The stacked thrust electric putter as claimed in claim 1, wherein:

one end of the connecting rotating shaft (9b) is connected with the motor shaft (5a), the other end of the connecting rotating shaft (9b) is connected with one end of the clutch mechanism (11), the other end of the clutch mechanism (11) is connected with one end of the second sectional body (9a02), the other end of the second sectional body (9a02) is connected with an input shaft (6a) of the speed reducing mechanism (6), an output shaft (6b) of the speed reducing mechanism (6) is connected with one end of the first sectional body (9a01), and the other end of the first sectional body (9a01) is connected with the inner end of the threaded rotating shaft (4 a); the motor shaft (5a) can drive the input shaft (6a) and the output shaft (6b) which are connected with the rotating shaft (9b), the second sectional body (9a02) and the speed reducing mechanism (6), and the first sectional body (9a01) and the threaded rotating shaft (4a) to rotate in the forward direction, and when the threaded rotating shaft (4a) rotates in the reverse direction, the first sectional body (9a01), the output shaft (6b) of the speed reducing mechanism (6), the input shaft (6a) and the second sectional body (9a02) rotate in the reverse direction along with the first sectional body (9a01), the second sectional body (9a 02);

the second shell (17) is a shell dividing structure of a first shell dividing body (1701) and a second shell dividing body (1702), a first section body (9a01) and a second section body (9a02) corresponding to the connecting shaft (9a), one end of the first shell dividing body (1701) is connected with the side wall of the adjacent speed reducing mechanism (6), the other end of the first shell dividing body is connected with the connecting plate (12), one hundred million end of the second shell dividing body (1702) is connected with the side wall of the adjacent speed reducing mechanism (6), and the other end of the second shell dividing body is connected with the front end of the shell of the motor (5);

the first subsection body (9a01) and a normally closed one-way brake mechanism (10) connected with the subsection body are positioned in a first sub-shell (1701), the second subsection body (9a02), a connecting rotating shaft (9b) and a one-way bearing (20) arranged on the connecting rotating shaft (9b), and a clutch mechanism (11) connected with the second subsection body (9a02) and the connecting rotating shaft (9b) are positioned in a second sub-shell (1702);

the shape is L-shaped.

6. The stacked thrust electric putter as claimed in claim 5, wherein:

and the outer end of the sleeve type push rod (8) and the outer side wall of the speed reducing mechanism (6) at the other end coaxial with the sleeve type push rod (8) are respectively provided with the connecting lugs (8a) which are positioned on the same axis.

7. A stacked thrust electric putter as claimed in any one of claims 1-6, wherein: in the push rod device (4), a first key groove matching structure (18) formed by a sliding key and a sliding groove is arranged on the outer wall surface of the nut (14) and an inner hole (15a) of the disc piece (15), and a second key groove matching structure (19) formed by a groove and a key is arranged on the outer edge of the disc piece (15) at the inner end of the sleeve type push rod (8) and the inner wall surface of the first shell (13).