CN201928130U - Fixed thrust/fixed tension device of direct current push rod motor - Google Patents
Fixed thrust/fixed tension device of direct current push rod motor Download PDFInfo
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- CN201928130U CN201928130U CN2011200227089U CN201120022708U CN201928130U CN 201928130 U CN201928130 U CN 201928130U CN 2011200227089 U CN2011200227089 U CN 2011200227089U CN 201120022708 U CN201120022708 U CN 201120022708U CN 201928130 U CN201928130 U CN 201928130U
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Abstract
The utility model provides a fixed thrust/fixed tension device of a direct current push rod motor, which belongs to the mechanical technical field and solves the technical problems that the existing fixed thrust/fixed tension device of the direct current push rod motor has complicated structure, higher cost and poorer reliability. The fixed thrust/fixed tension device of the direct current push rod motor comprises a motor, a speed reducing box connected with the motor, a screw and a nut push rod which is in threaded connecting with the screw; an output shaft of the speed reducing shaft is provided with a sliding sleeve; the sliding sleeve is circumferentially fixed with and connected with the output shaft in a sliding way; and the sliding sleeve and the screw are connected through a control mechanism which can automatically cut off a power supply of the motor when the acting force of the nut push rod reaches a preset value. The device has the advantages of firm structure and simple components, is convenient to install and is safe and reliable and the like.
Description
Technical field
The utility model belongs to field of mechanical technique, relates to a kind of thrust/decide puller system of deciding, and particularly a kind of direct current push-rod electric machine is decided thrust/decide puller system.
Background technology
The direct current push-rod electric machine also claims linear push rod, linear actuator etc.Be widely used in actuator as automation equipment; Elevating mechanism in the material transmission; Positioner in the mechanical structure and medicine equipment, construction equipment etc.The structure of existing push-rod electric machine is slowed down through gear box by motor, connects a screw mandrel, by feed screw nut's transfer bar mechanism, rotatablely moving of motor is changed into rectilinear motion, produces the device of linear thrust or pulling force.Existing push-rod electric machine thrust control is to realize by the size of controlling the motor output torque, and it needs the electronic controller of the control motor torque of a complexity.Its deficiency is a complex structure, cost height, poor reliability.
Summary of the invention
The purpose of this utility model is to have the problems referred to above at existing technology, proposed a kind of direct current push-rod electric machine simple in structure and decided thrust/decide puller system, this device have can the automatic cut-off motor power supply characteristics.
The purpose of this utility model can realize by following technical proposal: a kind of direct current push-rod electric machine is decided thrust/decide puller system, comprise motor, the reduction box, the screw rod that link to each other with motor and the nut push rod that is connected with screw flight, it is characterized in that, the output shaft of described reduction box is provided with sliding sleeve, described sliding sleeve and output shaft circumferentially fixedly are in axial sliding connection, and controlling organization that can the automatic cut-off motor power supply when reaching set point by an active force when the nut push rod between sliding sleeve and screw rod is connected.
It is to be used for the power that motor rotates is transformed into straight-line power that this direct current push-rod electric machine is decided thrust/decide puller system, the groundwork principle is as described below: at first, motor is started working, and the power of the rotation of motor begins output, slows down by the reduction box that links to each other with motor; Subsequently, the rotational power through slowing down is by the output shaft output of reduction box; Then, rotational power is transported to by controlling organization and drives its rotation on the screw rod; At last, the nut push rod that is threaded on the screw rod begins rectilinear motion.Can be when the straight-line active force of nut push rod reach set point in this device by control, the power supply of motor is disconnected, realize deciding thrust/the decide purpose of pulling force.Simultaneously, also can play the protection motor by this controlling organization and prevent the effect of transshipping.
Decide thrust/decide in the puller system at above-mentioned direct current push-rod electric machine, described controlling organization comprises tubular housing and is enclosed within the outer switch base of housing, described housing is set in outside the above-mentioned sliding sleeve and with sliding sleeve and fixes, and is fixed with one on the described housing end face and passes the connecting axle that described switch base is connected with above-mentioned screw rod; Be with spring one and the spring two that acts on the sliding sleeve respectively on the output shaft of the reduction box at sliding sleeve two ends, described connecting axle is provided with and can makes switch base along with the axially movable translation structure of connecting axle; Switch base is provided with the automatically controlled structure of automatic cut-off motor power supply when switch base moves a segment distance.The output shaft of above-mentioned reduction box rotates by driving sliding sleeve, housing and connecting axle and drives that screw rod rotates again, screw rod rotates the rectilinear motion that drives the nut push rod again, and the nut push rod can produce a reaction force acts on connecting axle in straight-line process.When motor just changeed, when the nut push rod moved right, connecting axle was moved to the left under the effect of reaction force.Because sliding sleeve is fixed on the housing, connecting axle is connected mutually with housing again, and therefore, connecting axle drives sliding sleeve and also is moved to the left.Slide in the process of being moved to the left compression spring one, spring force that is produced until compression spring one and above-mentioned reaction force balance each other; Meanwhile, switch base is under the effect of translation structure, along with connecting axle is moved to the left, switch base is after having moved the distance identical with sliding sleeve, under the effect of automatically controlled structure, with the dump of motor, motor stops operating, and the nut push rod just keeps the thrust of setting.If the motor counter-rotating just produces pulling force, the positive phase inversion of operation principle and motor does not just elaborate together.
Decide thrust/decide in the puller system at above-mentioned direct current push-rod electric machine, described automatically controlled structure comprises and sensitive switch one, sensitive switch two, block one and block two, described block one and block two are fixed on the above-mentioned motor, described sensitive switch one and sensitive switch two are fixed on the above-mentioned switch base, and between described block one and block two, described sensitive switch one and sensitive switch two also have above-mentioned motor to link.Switch base is in being moved to the left process, and sensitive switch one is also along with being moved to the left, and after moving a certain distance, sensitive switch one touches block one, and sensitive switch moves at the beginning, and motor power is cut off.Switch base is in the process of moving right, and sensitive switch two is also along with being moved to the left, and after moving a certain distance, sensitive switch two touches block two, and sensitive switch two begins action, and motor power is cut off.
Decide thrust/decide in the puller system at above-mentioned direct current push-rod electric machine, described translation structure comprises shoulder block and the back-up ring that is fixed on the switch base, described back-up ring is fixed on the connecting axle, described shoulder block is between back-up ring and the above-mentioned housing end face, and described shoulder block can lean with described back-up ring and housing end face.When connecting axle was moved to the left, back-up ring was moved to the left, and in moving process, the shoulder block on back-up ring and the switch base leans, and switch base is along with being moved to the left subsequently.When connecting axle moved right, housing moved right, and in moving process, the shoulder block on housing end face and the switch base leans, and switch base is along with moving right subsequently.
Decide thrust/decide in the puller system at above-mentioned direct current push-rod electric machine, described connecting axle and housing are integral structure, are connected mutually by alignment pin between connecting axle and the screw rod.
Decide thrust/decide in the puller system at above-mentioned direct current push-rod electric machine, an end of described spring one acts on the reduction box, and the other end acts on the sliding sleeve, and an end of described spring two acts on the output shaft of reduction box, and the other end acts on the sliding sleeve.
Decide thrust/decide in the puller system at above-mentioned direct current push-rod electric machine, described spring one and spring two are folded spring.
Decide thrust/decide in the puller system at above-mentioned direct current push-rod electric machine, offer chute on the output shaft of described reduction box, described sliding sleeve acts in this chute by flat key.
Decide thrust/decide in the puller system at above-mentioned direct current push-rod electric machine, described block one and block one are fixed on the motor by a support.
Compared with prior art, of the present utility model can be when the straight-line active force of nut push rod reaches set point by control, the power supply of motor is disconnected, realize deciding thrust/the decide purpose of pulling force, firm in structure, part is simple; Easy for installation, safe and reliable, environment for use is less demanding, and cost is lower.Simultaneously, also can play the protection motor by this controlling organization and prevent the effect of transshipping.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Among the figure, 1, motor; 2, reduction box; 21, output shaft; 3, screw rod; 4, nut push rod; 5, sliding sleeve; 6, housing; 7, switch base; 8, connecting axle; 9, spring one; 10, spring two; 11, sensitive switch one; 12, sensitive switch two; 13, block one; 14, block two; 15, shoulder block; 16, back-up ring; 17, alignment pin; 18, flat key; 19, support.
Embodiment
Below be specific embodiment of the utility model and in conjunction with the accompanying drawings, the technical solution of the utility model is further described, but the utility model be not limited to these embodiment.
As shown in Figure 1, this direct current push-rod electric machine is decided thrust/decide puller system, comprise motor 1, the reduction box 2 that links to each other with motor 1, screw rod 3 and the nut push rod 4 that is threaded with screw rod 3, the output shaft 21 of described reduction box 2 is provided with sliding sleeve 5, offer chute on the output shaft 21 of reduction box 2, sliding sleeve 5 acts in this chute by flat key 18.
Controlling organization that can automatic cut-off motor 1 power supply when reaching set point by an active force when nut push rod 4 between sliding sleeve 5 and screw rod 3 is connected.
Particularly, controlling organization comprises tubular housing 6 and the switch base 7 that is enclosed within outside the housing 6, described housing 6 is set in outside the above-mentioned sliding sleeve 5 and with sliding sleeve 5 and fixes, and is fixed with one on described housing 6 end faces and passes the connecting axle 8 that described switch base 7 is connected with above-mentioned screw rod 3; On reduction box 2 output shafts 21 at sliding sleeve 5 two ends, be with spring 1 and spring 2 10 respectively, one end of spring 1 acts on the reduction box 2, the other end acts on the sliding sleeve 5, and an end of described spring 2 10 acts on the output shaft 21 of reduction box 2, and the other end acts on the sliding sleeve 5; On connecting axle 8, be provided with and make switch base 7 along with connecting axle 8 axially movable translation structures; Switch base 7 is provided with the automatically controlled structure of automatic cut-off motor 1 power supply when switch base 7 moves a segment distance.The output shaft 21 of above-mentioned reduction box 2 rotates by driving sliding sleeve 5, housing 6 and connecting axle 8 and drives that screw rod 3 rotates again, screw rod 3 rotates the rectilinear motion that drives nut push rod 4 again, and nut push rod 4 can produce a reaction force acts on connecting axle 8 in straight-line process.When motor 1 was just changeing, when nut push rod 4 moved right, connecting axle 8 was moved to the left under the effect of reaction force.Because sliding sleeve 5 is fixed on the housing 6, connecting axle 8 is connected mutually with housing 6 again, and therefore, connecting axle 8 drives sliding sleeve 5 and also is moved to the left.Sliding sleeve 5 compresses spring 1 in being moved to the left process, balance each other until the compression spring force that produced of spring 1 and above-mentioned reaction force; Meanwhile, switch base 7 is under the effect of translation structure, along with connecting axle 8 is moved to the left, switch base 7 is after having moved the distance identical with sliding sleeve 5, under the effect of automatically controlled structure, with the dump of motor 1, motor 1 stops operating, and nut push rod 4 just keeps the thrust of setting.If motor 1 counter-rotating just produces pulling force, operation principle and motor 1 positive phase inversion just do not elaborate together.
Translation structure comprises shoulder block 15 and the back-up ring 16 that is fixed on the switch base 7, described back-up ring 16 is fixed on the connecting axle 8, described shoulder block 15 is between back-up ring 16 and above-mentioned housing 6 end faces, and described shoulder block 15 can lean with described back-up ring 16 and housing 6 end faces.When connecting axle 8 was moved to the left, back-up ring 16 was moved to the left, and in moving process, the shoulder block 15 on back-up ring 16 and the switch base 7 leans, and switch base 7 is along with being moved to the left subsequently.When connecting axle 8 moved right, housing 6 moved right, and in moving process, the shoulder block 15 on housing 6 end faces and the switch base 7 leans, and switch base 7 is along with moving right subsequently.
Automatically controlled structure comprises and sensitive switch 1, sensitive switch 2 12, block 1 and block 2 14, block 1 and block 1 are fixed on the motor 1 by a support 19, described sensitive switch 1 and sensitive switch 2 12 are fixed on the above-mentioned switch base 7, and between described block 1 and block 2 14, described sensitive switch 1 and sensitive switch 2 12 also have above-mentioned motor 1 to link.Switch base 7 is in being moved to the left process, and sensitive switch 1 is also along with being moved to the left, and after moving a certain distance, sensitive switch 1 touches block 1, and sensitive switch 1 begins action, and motor 1 power supply is cut off.Switch base 7 is in the process of moving right, and sensitive switch 2 12 is also along with being moved to the left, and after moving a certain distance, sensitive switch 2 12 touches block 2 14, and sensitive switch 2 12 begins action, and motor 1 power supply is cut off.
In the present embodiment, connecting axle 8 is an integral structure with housing 6, is connected mutually by alignment pin 17 between connecting axle 8 and the screw rod 3, and spring 1 and spring 2 10 are folded spring.
It is to be used for the power that motor 1 rotates is transformed into straight-line power that this direct current push-rod electric machine is decided thrust/decide puller system, the groundwork principle is as described below: when motor 1 is just changeing, at first, after motor 1 slows down by reduction box 2, with output shaft 21 outputs of rotational power by reduction box 2; Then, the just commentaries on classics of reduction box 2 output shafts 21 drives by driving sliding sleeve 5, housing 6 and connecting axle 8 that screw rod 3 just changeing again.At last, screw rod 3 is just changeing the rectilinear motion to the right that drives nut push rod 4 again.Nut push rod 4 can produce a reaction force acts on connecting axle 8 in rectilinear motion process to the right, connecting axle 8 is moved to the left under the effect of reaction force.Because sliding sleeve 5 is fixed on the housing 6, connecting axle 8 is connected mutually with housing 6 again, and therefore, connecting axle 8 drives sliding sleeve 5 and also is moved to the left.Sliding sleeve 5 compresses spring 1 in being moved to the left process, balance each other until the compression spring force that produced of spring 1 and above-mentioned reaction force; Meanwhile, back-up ring 16 is along with connecting axle 8 is moved to the left, and in moving process, the shoulder block 15 on back-up ring 16 and the switch base 7 leans, and drives switch base 7 and is moved to the left.Switch base 7 is in being moved to the left process, and sensitive switch 1 is also along with being moved to the left, after moving a certain distance, sensitive switch 1 touches block 1, and sensitive switch 1 begins action, and motor 1 power supply is cut off, motor 1 stops operating, and nut push rod 4 just keeps the thrust of setting.When motor 1 counter-rotating, just produce pulling force, its operation principle is identical when just changeing with motor 1, does not just elaborate here.
Specific embodiment described herein only is that the utility model spirit is illustrated.The utility model person of ordinary skill in the field can make various modifications or replenishes or adopt similar mode to substitute described specific embodiment, but can't depart from spirit of the present utility model or surmount the defined scope of appended claims.
Although this paper has used 1, motor morely; 2, reduction box; 21, output shaft; 3, screw rod; 4, nut push rod; 5, sliding sleeve; 6, housing; 7, switch base; 8, connecting axle; 9, spring one; 10, spring two; 11, sensitive switch one; 12, sensitive switch two; 13, block one; 14, block two; 15, shoulder block; 16, back-up ring; 17, alignment pin; 18, flat key; 19, term such as support, but do not get rid of the possibility of using other term.Using these terms only is in order to describe and explain essence of the present utility model more easily; They are construed to any additional restriction all is contrary with the utility model spirit.
Claims (9)
1. a direct current push-rod electric machine is decided thrust/decide puller system, comprise motor (1), the reduction box (2) that links to each other with motor (1), screw rod (3) and the nut push rod (4) that is threaded with screw rod (3), it is characterized in that, the output shaft (21) of described reduction box (2) is provided with sliding sleeve (5), described sliding sleeve (5) and output shaft (21) circumferentially fixedly are in axial sliding connection, and the controlling organization of energy automatic cut-off motor (1) power supply is connected when reaching set point by an active force when nut push rod (4) between sliding sleeve (5) and screw rod (3).
2. direct current push-rod electric machine according to claim 1 is decided thrust/decide puller system, it is characterized in that, described controlling organization comprises tubular housing (6) and is enclosed within the outer switch base (7) of housing (6), described housing (6) is set in outside the above-mentioned sliding sleeve (5) and with sliding sleeve (5) and fixes, and is fixed with one on described housing (6) end face and passes the connecting axle (8) that described switch base (7) is connected with above-mentioned screw rod (3); Be with the spring one (9) and the spring two (10) that act on the sliding sleeve (5) on reduction box (2) output shaft (21) at sliding sleeve (5) two ends respectively, described connecting axle (8) is provided with and can makes switch base (7) along with the axially movable translation structure of connecting axle (8); Switch base (7) is provided with the automatically controlled structure of automatic cut-off motor (1) power supply when switch base (7) moves a segment distance.
3. direct current push-rod electric machine according to claim 2 is decided thrust/decide puller system, it is characterized in that, described automatically controlled structure comprises and sensitive switch one (11), sensitive switch two (12), block one (13) and block two (14), described block one (13) and block two (14) are fixed on the above-mentioned motor (1), described sensitive switch one (11) and sensitive switch two (12) are fixed on the above-mentioned switch base (7), and be positioned between described block one (13) and the block two (14), described sensitive switch one (11) and sensitive switch two (12) also have above-mentioned motor (1) to link.
4. direct current push-rod electric machine according to claim 2 is decided thrust/decide puller system, it is characterized in that, described translation structure comprises shoulder block (15) and the back-up ring (16) that is fixed on the switch base (7), described back-up ring (16) is fixed on the connecting axle (8), described shoulder block (15) is between back-up ring (16) and above-mentioned housing (6) end face, and described shoulder block (15) can lean with described back-up ring (16) and housing (6) end face.
5. direct current push-rod electric machine according to claim 2 is decided thrust/decide puller system, it is characterized in that, described connecting axle (8) is an integral structure with housing (6), is connected mutually by alignment pin (17) between connecting axle (8) and the screw rod (3).
6. direct current push-rod electric machine according to claim 2 is decided thrust/decide puller system, it is characterized in that, one end of described spring one (9) acts on the reduction box (2), the other end acts on the sliding sleeve (5), one end of described spring two (10) acts on the output shaft (21) of reduction box (2), and the other end acts on the sliding sleeve (5).
7. direct current push-rod electric machine according to claim 6 is decided thrust/decide puller system, it is characterized in that described spring one (9) and spring two (10) are folded spring.
8. direct current push-rod electric machine according to claim 1 and 2 is decided thrust/decide puller system, it is characterized in that offer chute on the output shaft (21) of described reduction box (2), described sliding sleeve (5) acts in this chute by flat key (18).
9. direct current push-rod electric machine according to claim 3 is decided thrust/decide puller system, it is characterized in that described block one (13) and block one (13) are fixed on the motor (1) by a support (19).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200227089U CN201928130U (en) | 2011-01-24 | 2011-01-24 | Fixed thrust/fixed tension device of direct current push rod motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200227089U CN201928130U (en) | 2011-01-24 | 2011-01-24 | Fixed thrust/fixed tension device of direct current push rod motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201928130U true CN201928130U (en) | 2011-08-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200227089U Expired - Lifetime CN201928130U (en) | 2011-01-24 | 2011-01-24 | Fixed thrust/fixed tension device of direct current push rod motor |
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| Country | Link |
|---|---|
| CN (1) | CN201928130U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104565093A (en) * | 2015-01-06 | 2015-04-29 | 无锡新宏泰电器科技股份有限公司 | Mounting structure of part and motor spindle |
| WO2020211079A1 (en) * | 2019-04-19 | 2020-10-22 | 炼马机电（东莞）有限公司 | Drive device |
-
2011
- 2011-01-24 CN CN2011200227089U patent/CN201928130U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104565093A (en) * | 2015-01-06 | 2015-04-29 | 无锡新宏泰电器科技股份有限公司 | Mounting structure of part and motor spindle |
| WO2020211079A1 (en) * | 2019-04-19 | 2020-10-22 | 炼马机电（东莞）有限公司 | Drive device |
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Granted publication date: 20110810 |
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| CX01 | Expiry of patent term |