CN103573865A - Braking device - Google Patents
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- CN103573865A CN103573865A CN201210274752.8A CN201210274752A CN103573865A CN 103573865 A CN103573865 A CN 103573865A CN 201210274752 A CN201210274752 A CN 201210274752A CN 103573865 A CN103573865 A CN 103573865A
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Abstract
The invention provides a braking device. According to the braking device, a gap between a brake drum and a brake shoe can be easily and rapidly adjusted to proper size, and the brake shoe can apply braking friction force properly. The braking device is provided with a fixed iron core (9), a movable iron core (8), the brake shoe (2), an adjusting bolt (5), a split nut (6) and a screwing bolt (7), wherein the fixed iron core (9) and the movable iron core (8) are arranged at the radial outer side of the brake drum (1); the brake shoe (2) applies the braking friction force on a peripheral surface (1a) of the brake drum (1); the adjusting bolt (5) is clamped between the movable iron core (8) and the brake shoe (2) and is used for adjusting a gap with a non-braking state between the peripheral surface (1a) and the brake shoe (2); the split nut (6) enables an adjustment screw hole (61) for screwing the adjusting bolt (5) to be reduced by a gap (62) and is arranged at the side of the movable iron core (8); the screwing bolt (7) is screwed to close the gap (62), enables the adjustment screw hole (61) to be reduced and stops the adjusting bolt (5) from screwing forwards and screwing backwards.
Description
Technical field
The present invention relates to braking device.
Background technique
Braking device in the past possess be provided in brake drum footpath inwardly side fixed iron core and movable core, be connected on the inner peripheral surface of brake drum and apply drag friction power brake shoe, be installed between movable core and brake shoe many and adjust threaded pieces, be used for being secured to the 1st hexagon nut on movable core and being used for being secured to the 2nd hexagon nut on brake shoe by adjusting threaded piece adjusting threaded piece.
And, in order to adjust brake drum under non-braking state and the gap (movable core under braking state and the gap of fixed iron core) of brake shoe, a plurality of hexagon nuts are loosened with spanner, then with spanner, many adjustment threaded pieces being screwed into moves back, comes adjusting play (for example, with reference to patent documentation 1).
Patent documentation 1: JP 2005-113965 communique.
But the narrow space of square side in brake drum, only can make the instruments such as spanner with less pendulum angle motion, has and spends a large amount of time and the problem of workload for a plurality of hexagon nuts are loosened.In addition, make many to adjust threaded pieces and be screwed into and move back adjusting play so that it becomes is evenly difficult, have brake shoe not with suitable posture contact on brake drum and the problem of generation partial wear.In addition, when a plurality of hexagon nuts are tightened after adjustment, there is the situation of adjusting threaded piece servo rotary and adjusting deviation, also have the problem that needs skilled technical ability for worker.
Summary of the invention
So, the object of this invention is to provide and a kind ofly the gap of brake drum and brake shoe easily and promptly can be adjusted into the braking device that suitable size, brake shoe can suitably apply drag friction power.
In order to achieve the above object, braking device of the present invention, possesses fixed iron core and the movable core of the radially foreign side side that is provided in brake drum and the outer circumferential face of above-mentioned brake drum is applied to the brake shoe of drag friction power; 1 of space who possesses the non-braking state that is installed between above-mentioned movable core and above-mentioned brake shoe, is used for adjusting above-mentioned outer circumferential face and above-mentioned brake shoe adjusts bolt, make adjustment that this adjustment bolt screws up with screw can be by gap undergauge, be located at the split nut of above-mentioned movable core side and be screwed into above-mentioned gap to be closed, made above-mentioned adjustment with screw undergauge, stop the tighting a bolt of moving back that be screwed into of above-mentioned adjustment bolt.
In addition, above-mentioned tighting a bolt has at bolt head the patchhole portion of tightening with instrument that inserts; The above-mentioned patchhole portion opening tighting a bolt is that the direction in the plane with above-mentioned adjustment bolt quadrature is inserted the above-mentioned instrument of using of tightening.
In addition, in the back side of above-mentioned brake shoe, be provided with there is convex edge, receive and keep above-mentioned adjustment bolt the protruding ball head of front-end face cylinder portion and there is the tray of the spherical shape recess of the protruding ball head sliding contact of above-mentioned front-end face; The circular plate spring component that beyond making, embedding shape is provided on the neck of above-mentioned adjustment bolt locks on above-mentioned convex edge, by the elastic force of above-mentioned circular plate spring component, the protruding ball head of above-mentioned front-end face is pressed against on above-mentioned spherical shape recess, above-mentioned brake shoe and above-mentioned adjustment bolt are linked.
In addition, in a part for the periphery edge of above-mentioned movable core and above-mentioned fixed iron core, be provided with for detecting the limit switch that leaves (On/Off of break) and the detected parts of above-mentioned movable core and above-mentioned fixed iron core; Be provided with stop component, described stop component limits the displacement distance of the above-mentioned non-detection side of above-mentioned movable core, so that the size of leaving between above-mentioned movable core and above-mentioned fixed iron core is being provided with the detection side of above-mentioned limit switch and above-mentioned detected parts and identical or above-mentioned detection side is larger as the non-detection side of 180 degree opposition sides of this detection side.
According to the present invention, can be rapidly and easily adjust brake drum and the gap of brake shoe and the gap of the movable core under braking state and fixed iron core under non-braking state.Can easily adjust so that brake shoe is connected on brake drum with suitable posture.Can make the less braking device in space between brake shoe and movable core.Can will adjust reliably bolt with less torque fixes.
Accompanying drawing explanation
Fig. 1 means the main portion sectional side view of one embodiment of the present invention.
Fig. 2 is the main portion enlarged view of Fig. 1.
Fig. 3 means the side view of an example of split nut.
Fig. 4 means the plan view of an example of split nut.
Fig. 5 means the rear view of an example of holding member.
Fig. 6 is that the A direction of Fig. 1 is to view.
Fig. 7 means the stereogram of an example of circular plate spring component.
Fig. 8 means another routine stereogram of circular plate spring component.
Fig. 9 means another routine stereogram again of circular plate spring component.
Figure 10 means another routine stereogram again of circular plate spring component.
Figure 11 means the side view of an example of stop component.
Figure 12 is the Action Specification figure of comparative example.
Figure 13 is the Action Specification figure of comparative example.
Embodiment
Below, based on illustrated mode of execution, describe the present invention in detail.
Relevant braking device of the present invention as shown in Figures 1 and 2, possess the radially foreign side that is provided in brake drum 1 fixed iron core 9, can be by the electromagnetic coil in fixed iron core 9 unlatching, close and leave the movable core 8 moving back and forth with spring and be attached on movable core 8, be connected to the upper brake shoe 2 that applies drag friction power of outer circumferential face 1a of brake drum 1 in the direction that approaches, leaves with respect to brake drum 1 (radial direction).Particularly, as lift, with the break of winch, use.
In addition, between the surperficial 8a of movable core 8 and the back side 2b of brake shoe 2, only possess 1 and adjust bolt 5.
Adjust bolt 5 and on front end, there is the protruding ball head of front-end face (head with the planar front-end face of R spherical shape or hemisphere) 51, at base end part, have and adjust with outer screw section 54, at intermediate portion, there is the operation unit 53 of overlooking hexagonal configuration.In addition,, below the protruding ball head 51(of front-end face, also have the situation that is called head 51) terminal side near axial region (between head 51 and operation unit 53) be called neck 52.In addition, the face of the brake drum of each parts 1 side or position are called to surface or front end, the face of fixed iron core 9 sides or position are called to the back side or cardinal extremity.
Adjust bolt 5 and by base end part, be screwed in the split nut 6 on the surperficial 8a that is fixed in movable core 8, link with movable core 8.
As shown in Figures 1 to 4, split nut 6 have movable core 8 move back and forth direction (radial direction of brake drum 1) upper connect arrange, adjust the adjustment of bolt 5 screws up with outer screw section 54 adjustment for screw 61, along adjust axis direction formation with screw 61, by adjustment with screw 61 otch be cross section C word shape and gap 62 that can undergauge, be screwed into gap 62 is closed tight a bolt 7 screw up tighten with screw 63 and with tighten with screw 63 with the setting of concentric shape, through hole 64 that 7 the axial region (screw section) of tighting a bolt is slotting logical.
Here, tight a bolt and 7 there is to wear string shape by the axial region (screw section) in gap 62 and be formed with the bolt head 70 with the patchhole portion 71 of instrument insertion of tightening of regulation.
And, split nut 6 is fixed in movable core 8 sides, so that adjust with 7 the patchhole portion 71 of tighting a bolt that moves back and forth direction parallel (carrying over) and be screwed of the axle center of screw 61 and movable core 8 in the direction upper shed that moves back and forth direction quadrature with movable core 8.That is, 7 patchhole portion 71 openings of tighting a bolt are, from adjust a direction in the plane of bolt 5 quadratures and will tighten with instrument and insert.
Adjust bolt 5 central part of the surperficial 8a of the central part of the back side 2b of brake shoe 2 and movable core 8 is linked, be set to, if be screwed into, if movable core 8 approaches to twist with brake shoe 2, move back, movable core 8 leaves with brake shoe 2.That is, be set to, make it adjust the space (watt gap size Q) of the outer circumferential face 1a of brake drum 1 and the non-braking state of brake shoe 2.
In addition, tight a bolt and 7 be set to, if be screwed into, gap 62 is closed and made to adjust with screw 61 undergauges, stop being screwed into of bolt 5 of adjustment to be moved back, if twist and to move back, (being restored to free state) opened in gap 62, makes to adjust the diameter of thread with screw 61 and is restored to (before the undergauge) size that can adjust that being screwed into of bolt 5 move back.
In addition, the shape of 7 patchhole portion 71 of tighting a bolt is hexagonal configuration in diagram, but preferably in overlooking for the special shape of non-line symmetric shape or abnormity, only can be screwed into twist and move back operation by thering is the bar-shaped special-purpose tightening tool of the protuberance chimeric with this special shape.; be made as and general plus sige (cross) shape or minus sign (opening slot) shape, shape that hex shape is different; the worker who holds (use) who is only admitted special tool can carry out, by adjusting the adjustment of watt gap size Q of bolt 5, making the safety control of equipment become stricter.
In addition, as shown in Figures 1 and 2, front end and the brake shoe 2 of adjusting bolt 5 link.
In the back side of brake shoe 2 2b side, affixed the tray 28 with the spherical shape recess 28a of protruding ball head 51 sliding contacts of front-end face, there is the holding member 29 that the protruding ball head 51 of front-end face of bolt 5 and the cylinder 29a of portion cylindraceous of tray 28 are adjusted in harvesting.The 29a of cylinder portion has convex edge 29b in fixed iron core 8 sides.
And, embedding shape beyond the circular plate spring component 3 such as leaf-spring-like packing ring is provided on the neck 52 of adjusting bolt 5, be provided between the cardinal extremity face (jump face) 50 and convex edge 29b of head 51, engage on the 29b of convex edge, by the elastic force of circular plate spring component 3, the protruding spherical front-end face of adjusting the head 51 of bolt 5 is slidably pressed against to spherical shape recess 28a contiguously upper, the back side 2b of brake shoe 2 is linked with the front end of adjusting bolt 5.The spheric seating forming by the protruding ball head 51 of front-end face and spherical shape recess 28a will be adjusted bolt 5 rotations and link freely.In addition, from movable core 8, observe brake shoe 2 yaws are linked freely, from brake shoe 2, observe movable core 8 yaws are linked freely.
In addition, as shown in Figure 2, Figure 5 and Figure 6, holding member 29 has for being secured to installation projection piece 29c, the 29c on the back side 2b of brake shoe 2 and being used for blocking a pair of armful of (locking) cross section コ word shape on brake shoe 2 and entering the 29d of sheet portion, 29d to embrace shape.
In addition, as shown in Figure 1 and Figure 6, brake shoe 2 has the braking lining 20 and the dismounting that are crimped on brake drum 1 and apply drag friction power and freely (changes freely) the OBL lining holding member 21 of facing that braking lining 20 is installed.The back side 2b of brake shoe 2 is the back side of lining holding member 21.
Brake shoe 2 is stored in the OBL window portion 11 being formed on bulging housing 10.Lining holding member 21 has contact side 21c, the 21d of a pair of axial direction restriction use in the interior sidewall surface of window portion 11, the contact side 21c of described a pair of axial direction restriction use, 21d is connected to and upper with the parallel plane a pair of long side wall 10c of portion, the 10d of the axis of rotation quadrature of drum 1, limits the movement to the parallel direction of the axis of rotation with drum 1 (axial direction).
In addition, in the interior sidewall surface of window portion 11, have be connected to minor face side wall portion 10a, 10b upper, stop to contact side 21a, the 21b of a pair of bulging circumferencial direction restriction use of the movement of the sense of rotation (circumferencial direction) of drum 1.
In other words, window portion 11 have stop brake shoe 2 in axial direction mobile axial direction move and stop wall 10c, the 10d of use and stop the bulging circumferencial direction moving along drum circumferencial direction to move wall 10a, the 10b of prevention use.In addition, axial direction moves and stops wall 10c, the 10d of use to have the yielding notch of embracing the 29d of sheet portion, 29d interference that prevents holding member 29.
In addition, as shown in Figure 7, circular plate spring component 3 specifically there is the spring washer of tapering 30, side-looking circular cone shape, at internal side diameter, there is the spring washer of the corrugated plate shape of otch 32 as shown in Figure 8, as shown in Figure 9 only to the spring washer of the flexure type of the side-looking shallow discoid (U-shaped) of a direction bending or the spring washer etc. of cosmos seat shape side-looking circular cone, there are a plurality of tabs 33,33 that form with a plurality of otch 32 at internal side diameter as shown in Figure 10.
In addition, in Fig. 1, diagram is omitted, but as shown in figure 11,, in a part for the periphery edge of movable core 8 and fixed iron core 9, be provided with and leave feeler mechanism's (limit switch 90 and detected parts 91) for what detect that movable core 8 leaves (On/Off of break) from fixed iron core 9.
Particularly, on the assigned position of the sidewall (periphery edge) of fixed iron core 9, be provided with limit switch 90, on the assigned position of the sidewall (periphery edge) of movable core 8, be provided with the detected parts 91 that under non-braking state limited switch 90 detects (butt).
In addition, from the central part of fixed iron core 9 and movable core 8, observe, a side of setting up limited location switch 90 and detected parts 91 is called to detection side S, the 180 degree opposition sides of detection side S are called to non-detection side T.
And, at non-detection side T, be provided with stop component 99, the displacement distance of the non-detection side T of described stop component 99 restriction movable cores 8 so that between movable core 8 and fixed iron core 9 to leave size E identical with non-detection side T or detection side S is larger at detection side S.
Here, as shown in Figure 1, in the situation that under non-braking state by the outer circumferential face 1a of brake drum 1 and brake shoe 2(braking lining 20) between size adjusting be suitable watt gap size Q(space), if movable core 8 parallels under braking state and brake shoe 2 is crimped on brake drum 1, as represented with double dot dash line in Figure 11, non-detection side is left size Et, detection side and is left size Es and central authorities and leave size Ea for being the size of desirable (in design) with watt value that gap size Q is identical.
So limit switch 90 and detected parts 91 are designed to, in detection side, leave size Es and leave signal for watt gap size Q sends above in the situation that.
And gap is adjusted size G and is set to slightly larger than watt gap size Q.Particularly, be set to above and below 1.2 times of watt gap size Q of watt gap size Q.
For example, as do not possessed the comparative example shown in Figure 12 of stop component 99, central authorities leave size Ea and equate with a watt gap size Q, under suitable state, brake.And, at movable core 8, tilt and than detection side, leave size Es little in the situation that so that non-detection side is left size Et, detection side is left size Es and is left size Ea(watt of gap size Q than central authorities) large, thus from limit switch 90, send and leave signal, no problem.
But, comparative example is as shown in figure 13 such, although central authorities leave size Ea and equate and brake with suitable state with a watt gap size Q, if non-detection side is left size Et to leave size Es than detection side large but movable core 8 tilts, detection side is left size Es and is left size Ea(watt of gap size Q than central authorities) little, so do not send and leave signal from limit switch 90.
That is, although carried out suitable braking, do not send and leave signal (sending the non-signal that leaves that movable core 8 does not leave), become and have fault or abnormal manipulation.
; even if stop component 99 applies in order to prevent brake shoe 2 and suitably to contact on brake drum 1, drag friction power, central authorities leave that size Ea equates with watt gap size Q, movable core 8 is also because leaving by the difference slightly of the elastic force of spring or leaving become, detection side larger than watt gap size Q of size Et with inclination, the non-detection side that bring in the chimeric gap of guide finger etc. and leave size Es and become and do not send less than a watt gap size Q misoperation of leaving signal, and the periphery edge of the non-detection side T of restriction movable core 8.In addition, stop component 99 is not the parts of the parallel of guiding movable core 8.
In addition; in Fig. 1; it is rectangular-shaped that fixed iron core 9 forms cross section; by 4 construction bolts 93,93 and construction bolt 93,93, insert logical cylinder part (axle collar) 94,94, at the outer circumferential face 1a(rotating center from drum 1) position of leaving given size is fixed on the bulging housing 10 of protection drum 1.In addition, in Figure 11 to Figure 13, for accompanying drawing is easily watched, the diagrams such as construction bolt 93, cylinder part 94, split nut 6, adjustment bolt 5 are omitted.
It is rectangular-shaped that movable core 8 forms cross section, has cylinder part 94 and insert logical through hole 84.
In addition, movable core 8 and fixed iron core 9 can freely select to face rectangular-shaped or oblong shape etc.
Radially foreign side at brake drum 1, possess fixed iron core 9, movable core 8, tight a bolt 7, split nut 6, adjust bolt 5, circular plate spring component 3, brake shoe 2, holding member 29, tray 28, on drum housing 10, dismounting is provided with freely by movable core 8 and the brake unit Y that brake shoe 2 links via adjustment bolt 5, makes the operations such as replacing, maintenance, maintenance, repairing become easy.Particularly, when urgent, by changing brake unit Y, can be shortened repair time significantly.
In addition, clip the rotating center of brake drum 1 at 180 degree opposition sides, also possess brake unit Y(fixed iron core 9, movable core 8, brake shoe 2, adjust bolt 5 etc.).
Then, to the using method of braking device of the present invention, (effect) describes.
As shown in Figures 1 and 2, under non-braking state, adjust brake shoe 2(braking lining 20) and the outer circumferential face 1a of brake drum 1 between time, tightening tool is approached from the direction of the direction quadrature that moves back and forth with movable core 8, the bar-shaped front end embedding part of instrument is inserted in patchhole portion 71, make it around the rotation of instrument axle center, 7 stubborn moving back make to tight a bolt.
By tighting a bolt 7 stubborn moving back, the gap 62 of split nut 6 expands, and adjusts and is restored to the size before undergauge with the diameter of thread of screw 61, and operation unit 53 that can rotary manipulation adjustment bolt 5 and being screwed into moves back.
Make to adjust bolt 5 and be screwed into, brake shoe 2 is connected on the outer circumferential face 1a of drum 1.And, if make to adjust bolt 5 from butt state, rotate to twist the center angle (for example, 45 degree or 1/4th circles) of moving back regulation,, according to the relation with pitch, between brake shoe 2 and brake drum 1, become suitable watt gap size Q.For example, if establish pitch, be 2mm,, by 1/4th circles (rotations of 90 degree), can make a watt gap size Q become 0.5mm.
And, after the adjustment of adjusting bolt 5, by making to tight a bolt, 7 be screwed into, tighten with screw 63 undergauges, adjust being screwed into of bolt 5 and move back and be limited and be fixed.
In the situation that double nut effect such, that adjustment bolt 5 is brought by hexagon nut was fixing in the past, there is not the problem of the servo rotary that brings because of hexagon nut, even without skilled technical ability, also can be easily and be promptly adjusted into suitable size.
In addition,, with the torque phase ratio that makes the rotation of in the past such hexagon nut with spanner, 7 rotations that can make with less torque to tight a bolt (gap 62 is opened and closed), make to adjust bolt 5 and become to be screwed into move back possible state and be screwed into and move back restriction state.
In addition, elastic force by the head 51 of adjustment bolt 5 by circular plate spring component 3 is always crimped in the spherical shape recess 28a of tray 28, there is not gap and rock, can adjust bolt 5 rotations, and can be by brake shoe 2 and the mutual yaw of movable core 8 freely and carry out high-precision location.
In addition, the convex edge 29b that circular plate spring component 3 is locked be overlook circular, with make radius vector inwardly the situation of the outstanding a plurality of locking tabs in side compare, intensity is stronger, prevents from adjusting bolt 5 from brake shoe 2 disengagings because of distortion or damage etc.
In addition,, by stop component 99, although prevent movable core 8 from leaving, suitably brake, do not send and leave the such misoperation of signal.
In addition, the present invention can design alteration, and the shape of patchhole portion 71 can be also that plus sige (cross) shape or minus sign (opening slot) shape, hexagon etc. are polygon-shaped or star-like in overlooking.It is bar-shaped tightening and preferably making front end with instrument, and global shape preferably easily applies L word shape or the T word shape of torque.
As above, braking device of the present invention possesses fixed iron core 9 and the movable core 8 of the radially foreign side side that is provided in brake drum 1, apply the brake shoe 2 of drag friction power with the outer circumferential face 1a to brake drum 1, possess between the movable core of being installed in 8 and brake shoe 2, 1 of space who is used for adjusting the non-braking state of outer circumferential face 1a and brake shoe 2 adjusts bolt 5, make to adjust the adjustment that bolt 5 screws up and can pass through gap 62 undergauges with screw 61, be located at the split nut 6 of movable core 8 sides, with be screwed into that gap 62 is closed, make to adjust with screw 61 undergauges, stop that being screwed into of adjustment bolt 5 move back tight a bolt 7, so can be rapidly and easily adjust the gap (space) of brake drum under non-braking state 1 and brake shoe 2, and the gap of the movable core under braking state 8 and fixed iron core 9.Can easily adjust, so that brake shoe 2 is with suitable posture butt.Can make between brake shoe 2 and movable core 8 to approach and make device (brake unit Y) miniaturization.Can will adjust reliably bolt 5 with less torque fixing.In addition, owing to being that brake shoe 2 is from the approaching structure of the radially foreign side of brake drum 1, so be external rotor in the motor-side of winch etc., in the footpath of brake drum 1, inwardly can not to obtain arranging in the such situation in space be preferred in side.That is, for external bulging break and in connect which kind of of bulging break can both be corresponding, ease of use is better.
In addition, tight a bolt and 7 at bolt head 70, there is the patchhole portion 71 tighten with instrument that inserts, tight a bolt 7 patchhole portion 71 openings with from adjust a direction in the plane of bolt 5 quadratures and insert and tighten with instrument, so easily make to tighten with instrument close to tighting a bolt 7, do not need the such larger operating space of spanner, can easily adjust operation.
In addition, in the back side of brake shoe 2 2b side, be provided with and there is convex edge 29b, the 29a of cylinder portion of the protruding ball head 51 of front-end face of bolt 5 is adjusted in harvesting, with the tray 28 with the spherical shape recess 28a of protruding ball head 51 sliding contacts of front-end face, the circular plate spring component 3 that beyond making, embedding shape is provided on the neck 52 of adjusting bolt 5 locks on the 29b of convex edge, elastic force by circular plate spring component 3 presses against the protruding ball head 51 of front-end face on spherical shape recess 28a, brake shoe 2 and adjustment bolt 5 are linked, so the protruding ball head 51 of front-end face is always crimped in spherical shape recess 28a, very close to each other and rock, can bolt 5 rotations will be adjusted, and can be by brake shoe 2 and the mutual yaw of movable core 8 freely and carry out high-precision location.In addition, make the situation of the shape with radius vector a plurality of locking tabs that inwardly give prominence to side compare with cylinder portion, intensity is stronger, can prevent that because of distortion or damage etc., adjusting bolt 5 departs from from brake shoe 2.
In addition, in a part for the periphery edge of movable core 8 and fixed iron core 9, be provided with for detecting the limit switch leaving 90 and the detected parts 91 of movable core 8 and fixed iron core 9, be provided with the displacement distance of the non-detection side T of restriction movable core 8, so that the size E that leaves between movable core 8 and fixed iron core 9 is being provided with the detection side S of limit switch 90 and detected parts 91 and as the stop component that non-detection side T is identical or detection side S is larger 99 of the 180 degree opposition sides of detection side S, although so can prevent from carrying out suitable braking, but do not send the misoperation of leaving signal (sending the non-signal that leaves).Movable core 8 can be remained to the posture in the slant range of regulation, can make brake shoe 2 be crimped on brake drum 1 with suitable posture.
Description of reference numerals
1 brake drum
1a outer circumferential face
2 brake shoe
The 2b back side
3 circular plate spring component
5 adjust bolt
6 split nuts
7 tight a bolt
8 movable cores
9 fixed iron cores
28 trays
28a spherical shape recess
29a cylinder portion
29b convex edge
The protruding ball head of 51 front-end face
52 necks
61 adjustment screws
62 gaps
70 bolt heads
71 insert head
90 limit switches
91 detected parts
99 stop components
E leaves size
S detection side
The non-detection side of T.
Claims (5)
1. a braking device, is characterized in that,
Possess fixed iron core (9) and the movable core (8) of the radially foreign side side that is provided in brake drum (1) and the outer circumferential face of above-mentioned brake drum (1) (1a) is applied to the brake shoe (2) of drag friction power;
Possess and be installed between above-mentioned movable core (8) and above-mentioned brake shoe (2), 1 of space who is used for adjusting above-mentioned outer circumferential face (1a) and the non-braking state of above-mentioned brake shoe (2) adjusts bolt (5), make the screw for adjustment (61) that this adjustment bolt (5) screws up can pass through gap (62) undergauge, be located at the split nut (6) of above-mentioned movable core (8) side, with be screwed into that above-mentioned gap (62) are closed, tight a bolt (7) that make above-mentioned screw (61) undergauge for adjustment and stop being screwed into of above-mentioned adjustment bolt (5) to be moved back.
2. braking device as claimed in claim 1, is characterized in that,
Above-mentioned tighting a bolt (7) has at bolt head (70) the patchhole portion (71) of tightening with instrument that inserts;
Patchhole portion (71) opening of above-mentioned tighting a bolt (7) is that the direction in the plane with above-mentioned adjustment bolt (5) quadrature is inserted the above-mentioned instrument of using of tightening.
3. braking device as claimed in claim 1 or 2, is characterized in that,
In the back side of above-mentioned brake shoe (2) (2b) side, be provided with there is convex edge (29b), receive and keep above-mentioned adjustment bolt (5) the protruding ball head of front-end face (51) cylinder portion (29a) and there is the tray (28) of the spherical shape recess (28a) of the protruding ball head of above-mentioned front-end face (51) sliding contact;
The circular plate spring component (3) that beyond making, embedding shape is provided on the neck (52) of above-mentioned adjustment bolt (5) locks on above-mentioned convex edge (29b), by the elastic force of above-mentioned circular plate spring component (3), the protruding ball head of above-mentioned front-end face (51) is pressed against to above-mentioned spherical shape recess (28a) upper, above-mentioned brake shoe (2) and above-mentioned adjustment bolt (5) are linked.
4. braking device as claimed in claim 1 or 2, is characterized in that,
In a part for the periphery edge of above-mentioned movable core (8) and above-mentioned fixed iron core (9), be provided with for detecting the limit switch leaving (90) and the detected parts (91) of above-mentioned movable core (8) and above-mentioned fixed iron core (9);
Be provided with stop component (99), described stop component (99) limits the displacement distance of the above-mentioned non-detection side (T) of above-mentioned movable core (8), so that the size (E) of leaving between above-mentioned movable core (8) and above-mentioned fixed iron core (9) is being provided with the detection side (S) of above-mentioned limit switch (90) and above-mentioned detected parts (91) and identical or above-mentioned detection side (S) is larger as the non-detection side (T) of the 180 degree opposition sides of this detection side (S).
5. braking device as claimed in claim 3, is characterized in that,
In a part for the periphery edge of above-mentioned movable core (8) and above-mentioned fixed iron core (9), be provided with for detecting the limit switch leaving (90) and the detected parts (91) of above-mentioned movable core (8) and above-mentioned fixed iron core (9);
Be provided with stop component (99), described stop component (99) limits the displacement distance of the above-mentioned non-detection side (T) of above-mentioned movable core (8), so that the size (E) of leaving between above-mentioned movable core (8) and above-mentioned fixed iron core (9) is being provided with the detection side (S) of above-mentioned limit switch (90) and above-mentioned detected parts (91) and identical or above-mentioned detection side (S) is larger as the non-detection side (T) of the 180 degree opposition sides of this detection side (S).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210274752.8A CN103573865B (en) | 2012-08-03 | 2012-08-03 | Braking device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210274752.8A CN103573865B (en) | 2012-08-03 | 2012-08-03 | Braking device |
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| CN103573865A true CN103573865A (en) | 2014-02-12 |
| CN103573865B CN103573865B (en) | 2016-03-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210274752.8A Active CN103573865B (en) | 2012-08-03 | 2012-08-03 | Braking device |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105015687A (en) * | 2014-04-23 | 2015-11-04 | 株式会社岛野 | Bicycle brake caliper assembly |
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| US4116308A (en) * | 1976-11-01 | 1978-09-26 | Square D Company | Electromagnetically operated friction brake |
| CN2045793U (en) * | 1989-02-25 | 1989-10-11 | 张仲秋 | Improved fixed brake fluid structure |
| CN1225427A (en) * | 1998-02-05 | 1999-08-11 | 三阳工业株式会社 | Electromagnetic brake |
| JP2005113965A (en) * | 2003-10-03 | 2005-04-28 | Yasukawa Motor Kk | Electromagnetic braking device |
| CN201057204Y (en) * | 2007-06-07 | 2008-05-07 | 扬动股份有限公司 | Simple locking nut |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4116308A (en) * | 1976-11-01 | 1978-09-26 | Square D Company | Electromagnetically operated friction brake |
| CN2045793U (en) * | 1989-02-25 | 1989-10-11 | 张仲秋 | Improved fixed brake fluid structure |
| CN1225427A (en) * | 1998-02-05 | 1999-08-11 | 三阳工业株式会社 | Electromagnetic brake |
| JP2005113965A (en) * | 2003-10-03 | 2005-04-28 | Yasukawa Motor Kk | Electromagnetic braking device |
| CN201057204Y (en) * | 2007-06-07 | 2008-05-07 | 扬动股份有限公司 | Simple locking nut |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105015687A (en) * | 2014-04-23 | 2015-11-04 | 株式会社岛野 | Bicycle brake caliper assembly |
| CN105015687B (en) * | 2014-04-23 | 2018-09-21 | 株式会社岛野 | Bicycle brake caliper component |
| CN109080754A (en) * | 2014-04-23 | 2018-12-25 | 株式会社岛野 | (for caliper) base construction |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103573865B (en) | 2016-03-30 |
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