CN218971702U - Return spring and brake of friction plate - Google Patents
Return spring and brake of friction plate Download PDFInfo
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- CN218971702U CN218971702U CN202223590895.8U CN202223590895U CN218971702U CN 218971702 U CN218971702 U CN 218971702U CN 202223590895 U CN202223590895 U CN 202223590895U CN 218971702 U CN218971702 U CN 218971702U
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- friction plate
- return spring
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- middle connecting
- claw
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- 210000000078 claw Anatomy 0.000 claims abstract description 49
- 238000005452 bending Methods 0.000 claims description 29
- 238000000034 method Methods 0.000 claims description 13
- 238000010276 construction Methods 0.000 claims description 2
- 238000012423 maintenance Methods 0.000 description 4
- 235000014676 Phragmites communis Nutrition 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 210000001503 joint Anatomy 0.000 description 1
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Abstract
The utility model relates to the technical field of braking devices, in particular to a return spring of a friction plate and a brake. At least two claw parts in the return spring are uniformly distributed at two ends of the middle connecting part, one end of each claw part is connected with the middle connecting part, the other end of each claw part is provided with a claw bent towards the middle connecting part, and a space surrounded by each claw part and the middle connecting part is used for clamping the friction plate; at least two hook parts are uniformly distributed at two ends of the middle connecting part, and the hook parts and the claw parts are positioned at the same side of the middle connecting part; one end of the hook part is connected with the middle connecting part, the hook parts at the two ends of the middle connecting part are bent in the direction away from each other, and the hook parts are used for providing return tension for the friction plate. The hook parts of the return springs of the friction plate are uniformly distributed on two sides of the supporting lugs, return tensile force of the hook parts born by the friction plate acts on the central line of the supporting lugs, the friction plate slides more stably, and the return of the friction plate is more uniform.
Description
Technical Field
The utility model relates to the technical field of braking devices, in particular to a return spring of a friction plate and a brake.
Background
A caliper disc brake refers to a component that generates a braking torque to counteract a force of a vehicle movement or movement tendency. The two friction plates of the caliper disc brake move towards each other to brake, and the two friction plates are driven by the return mechanism to return to the initial position. The return mechanism is, for example, a steel wire return spring, and the two friction plates are drilled with holes and then are provided with bent steel wire return springs for return. The return mechanism is, for example, a supporting reed type return spring, and a pulling or pushing structure is added on a friction plate supporting reed fixed on the bracket to enable the friction plate to return. The return mechanism is also, for example, a V-shaped return spring with one side riveted to the friction plate and the other side acting on the bracket for return.
The return mechanism of the existing mechanism has the defect that the sliding of the friction plate is not stable enough when the friction plate is pulled to return.
Disclosure of Invention
In view of the above, the utility model aims to provide a return spring of a friction plate, so as to solve or partially solve the problem that the friction plate cannot slide stably enough when the friction plate is pulled to return by the existing return mechanism.
In order to achieve the above purpose, the technical scheme of the utility model is realized as follows:
a return spring of a friction plate, which comprises an intermediate connecting part, a clamping claw part and a hook part; the clamping claw parts are uniformly distributed at two ends of the middle connecting part, one end of each clamping claw part is connected with the middle connecting part, the other end of each clamping claw part is provided with a clamping claw bent towards the middle connecting part, and a space enclosed by the clamping claw parts and the middle connecting part is used for clamping the friction plate; at least two hooks are uniformly distributed at two ends of the middle connecting part, and the hooks and the clamping claw parts are positioned at the same side of the middle connecting part; one end of the hook part is connected with the middle connecting part, the hook parts at two ends of the middle connecting part are bent in the direction away from each other, and the hook parts are used for providing return tension for the friction plate.
Further, one end of the intermediate connecting part is connected with at least two clamping claw parts and at least one hook part; the hook part is positioned in the middle of one end of the middle connecting part; or at least two hook parts are uniformly distributed between at least two claw parts.
Further, the outer wall of the clamping claw part is provided with a strip-shaped protruding structure, and the extending direction of the strip-shaped protruding structure is perpendicular to the return pulling force direction provided by the hook part.
Further, the middle part of the clamping claw part is bent outwards to form the strip-shaped protruding structure.
Further, the intermediate connection part is of a sheet-shaped structure.
Further, the return spring further comprises a bending part, the other end of the bent hook part is connected with the bending part, and the bending direction of the bending part is opposite to the bending direction of the bent hook part.
Further, the hook portion includes at least one circular arc segment and at least M straight line segments, where M is a natural number.
Further, the intermediate connection portion, the click portion, and the hook portion are integrally formed.
Compared with the prior art, the return spring of the friction plate has the following advantages:
the return spring of the friction plate can pull the friction plate back to the original position when braking is released, and plays a role in reducing drag and drag. The hook parts are uniformly distributed on two sides of the supporting lugs, return tensile force of the hook parts borne by the friction plates acts on the central line of the supporting lugs, the friction plates slide more stably, the friction plates return more uniformly, the return effect is good, and the problem of eccentric wear of the friction plates can be avoided. The return spring is connected with the friction plate in a clamping way, so that the connection mode is simple and the maintenance is convenient; and when the return spring fails, only the return spring can be replaced, so that the maintenance cost is saved.
Another object of the present utility model is to provide a brake, which solves or partially solves the problem that the sliding of the friction plate is not stable enough when the friction plate is pulled to return by the return mechanism of the existing brake.
In order to achieve the above purpose, the technical scheme of the utility model is realized as follows:
a brake comprises the return spring of the friction plate.
Further, the brake further comprises a bracket, a friction plate and a supporting plate; the support comprises a first groove, the support piece is provided with a second groove, the support is connected with the support piece, the groove wall of the first groove is connected with the groove wall of the second groove, and the groove bottom of the first groove is connected with the groove bottom of the second groove; the lugs of the friction plate are clamped in the clamping claw parts and the middle connecting parts of the return springs, and the surfaces of the lugs, facing the friction surfaces of the friction plate, are contacted with the middle connecting parts; the supporting lugs and the return springs are arranged in the second grooves, the claw portions are in contact with the groove walls of the second grooves, and the other ends of the hook portions of the return springs are in butt joint with the support.
The brake and the return spring of the friction plate have the same advantages compared with the prior art, and are not described in detail herein.
The foregoing description is only an overview of the present utility model, and is intended to be implemented in accordance with the teachings of the present utility model in order that the same may be more clearly understood and to make the same and other objects, features and advantages of the present utility model more readily apparent.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the description of the embodiments of the present utility model will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic view of a return spring of a friction plate according to an embodiment of the present utility model;
FIG. 2 is a schematic cross-sectional view of a return spring of a friction plate according to an embodiment of the present utility model after the return spring is connected to the friction plate and a bracket;
FIG. 3 is a schematic view of a return spring of a friction plate according to an embodiment of the present utility model;
FIG. 4 is a schematic view showing the construction of an exploded view of a return spring of a brake according to an embodiment of the present utility model;
fig. 5 is a schematic view of a part of a brake according to an embodiment of the utility model.
Reference numerals illustrate:
10-return springs; 11-an intermediate connection; 12-a claw part; 121-a claw; 122-a strip-shaped protruding structure; 13-a hook portion; 14-bending part; 20-friction plate; 21-lugs; 30-a bracket; 31-a first groove; 40-supporting sheets; 41-a second groove; 42-clamping part; 50-pliers body.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are some, but not all embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
The embodiment of the application provides a return spring of a friction plate, and referring to fig. 1, a schematic structural diagram of the return spring of the friction plate according to the embodiment of the application is shown, and a return spring 10 includes an intermediate connecting portion 11, a clamping portion 12 and a hook portion 13.
Specifically, at least two claw portions 12 are uniformly distributed at two ends of the intermediate connecting portion 11, one end of each claw portion 12 is connected with the intermediate connecting portion 11, a claw 121 bent towards the intermediate connecting portion 11 is formed at the other end of each claw portion 12, and a space enclosed by each claw portion 12 and the intermediate connecting portion 11 is used for clamping the friction plate 20 so as to achieve connection with the friction plate 20, specifically, a space enclosed by each claw portion 12 and the intermediate connecting portion 11 is clamped with a lug 21 of the friction plate 20. At least two hook parts 13 are uniformly distributed at two ends of the middle connecting part 11; the hook portion 13 and the click portion 12 are both located on the same side of the intermediate connecting portion 11. One end of the hook portion 13 is connected to the intermediate connection portion 11, the hook portions 13 at both ends of the intermediate connection portion 11 are bent in a direction away from each other, and the hook portions 13 are used for providing a return tension for the friction plate 20.
With further reference to fig. 1, the intermediate connecting portion 11 is located in the middle, and the same number of claw portions 12 and the same number of hooks 13 are provided at both ends of the intermediate connecting portion 11, and the claw portions 12 and the hooks 13 are provided on the left side of the intermediate connecting portion 11.
The mounting process of the return spring of the friction plate in the embodiment of the application is as follows with reference to fig. 3 and 4: the lugs 21 of the friction plate 20 are clamped in the space enclosed by the clamping jaw parts 12 and the middle connecting part 11, and the free ends of the clamping jaws 121 press the lugs 21 to prevent the lugs 21 from falling out. The lugs 21 and return spring 10 are mounted together in a first recess 31 of the bracket 30.
When the brake is braked, the friction plate 20 moves in the arrow a direction, and further referring to fig. 2, the friction plate 20 moves rightward, and the hooked portion 13 stores force. When the brake is released, the force stored in the hook 13 provides a return pulling force to the left for the lugs 21, and pulls the friction plate 20 back into position.
The return spring of the friction plate can pull the friction plate 20 back to the original position when braking is released, and plays a role in reducing dragging and grinding. The crotch portion 13 evenly distributed is in journal stirrup 21 both sides, and the return pulling force of crotch portion 13 that friction disc 20 received acts on the central line of journal stirrup 21, and friction disc 20 slides more stably, and friction disc 20 return is more even, and the return is effectual, and can avoid friction disc 20 to appear the problem of eccentric wear. The return spring 10 is connected with the friction plate 20 in a clamping way, so that the connection mode is simple and the maintenance is convenient; and when the return spring 10 fails, only the return spring 10 can be replaced, thereby saving maintenance cost.
In some embodiments of the present application, one end of the intermediate connecting portion 11 is connected with at least two claw portions 12 and at least one hook portion 13; the hooking portion 13 is located at the middle of one end of the intermediate connection portion 11. At this time, since the hooking portion 13 is located at the middle of one end of the intermediate connection portion 11, the return tension provided by the hooking portion 13 acts on the middle of one end of the intermediate connection portion 11, and the return spring 10 is more uniformly stressed, so that the return of the friction plate 20 is more uniform.
It is to be understood that the number of the hooks 13 and the click portions 12 provided in the return spring 10 is set according to the use requirement, and the embodiment of the present application is not limited. For example, referring to fig. 1, one end of the intermediate connection portion 11 is connected to two claw portions 12 and one hook portion 13, and the hook portion 13 is located between the two claw portions 12.
In other embodiments of the present application, one end of the intermediate connecting portion 11 is connected with at least two claw portions 12 and at least two hook portions 13; at least two hooks 13 are uniformly distributed between at least two claws 12. The friction plate 20 can be more uniformly returned.
Referring to fig. 1, in some embodiments of the present application, the outer wall of the click portion 12 is formed with a strip-shaped protrusion structure 122, and the extension direction of the strip-shaped protrusion structure 122 is perpendicular to the return pulling force direction provided by the hook portion 13. Since the return pulling force provided by the hook portion 13 is parallel to the sliding resistance direction of the friction plate 20, the extending direction of the strip-shaped protruding structure 122 is perpendicular to the sliding resistance direction of the friction plate 20. The strip-shaped protruding structure 122 of the return spring 10 is in line contact with the bracket 30, and when the return spring 10 slides, the line contact has small sliding resistance relative to the surface contact of the return spring 10 and the bracket 30, so that the dragging and grinding of the friction plate 20 are reduced.
Referring to fig. 1, in some embodiments of the present application, the middle portion of the claw portion 12 is bent outward to form a strip-shaped protruding structure 122.
Further, the claw portion 12 has 3 bending sections, and the first bending section, the second bending section, and the third bending section are connected in order. The first bending section is connected with the end part of the middle connecting part 11, and the included angle between the first bending section and the middle connecting part 11 is larger than 90 degrees; the included angle between the second bending section and the middle connecting part 11 is smaller than 90 degrees; the included angle between the second bending section and the third bending section is smaller than 90 degrees, and the third bending section forms a claw 121, and the free end of the third bending section is used for clamping the friction plate 20. The connection of the first bending section and the second bending section forms a strip-shaped protruding structure 122.
Referring to fig. 1, in some embodiments of the present application, the intermediate connection 11 is a sheet-like structure. With further reference to fig. 4, return spring 10 is in contact, in use, with the surface of lug 21 facing the friction surface of friction plate 20.
Referring to fig. 1, in some embodiments of the present application, the return spring 10 further includes a bending portion 14, and the other end of the hook portion 13 is connected to the bending portion 14, and the bending direction of the bending portion 14 is opposite to the bending direction of the hook portion 13.
Referring to fig. 1, in some embodiments of the present application, the hook portion 13 includes at least one circular arc segment and at least M straight line segments, where M is a natural number.
Further, the natural number is a number indicated by numerals 0,1,2,3,4, … …. The number of arc segments and straight segments in the hook portion 13 and the radian of the arc segments are set according to the use requirement, for example, the use requirement includes a return tension that the hook portion 13 needs to provide.
In some embodiments of the present application, the intermediate connection portion 11, the click portion 12, and the hook portion 13 are integrally formed, so that the return spring 10 is high in strength and long in service life.
The working process of the return spring of the friction plate in the embodiment of the application is as follows with reference to fig. 2 and 3:
when the brake is not braked, the return spring 10 prevents the friction plate 20 from moving in the a direction.
When the brake is braked, the friction plate 20 moves in the arrow a direction, and further referring to fig. 2, the friction plate 20 moves rightward, and the hooked portion 13 stores force.
When the brake is released, the force stored in the hook 13 provides a return pulling force to the left for the lugs 21, and the friction plate 20 is pulled back to the original position.
In the process that the return spring 10 moves along with the friction plate 20, the return spring 10 is in line contact with the bracket 30 through the strip-shaped protruding structure 122, so that the friction force is relatively small when the return spring 10 moves, and the movement reaction of the friction plate 20 is quicker.
The return spring of the friction plate can pull the friction plate 20 back to the original position when braking is released, and plays a role in reducing dragging and grinding. The crotch portion 13 evenly distributed is in journal stirrup 21 both sides, and the return pulling force of crotch portion 13 that friction disc 20 received acts on the central line of journal stirrup 21, and friction disc 20 slides more stably, and friction disc 20 return is more even, and the return is effectual, and can avoid friction disc 20 to appear the problem of eccentric wear. The hook portion 13 of the return spring 10 extends from the friction plate 20 near the brake disc side, so that the axial height of the return spring is more compact, and the hook portion 13 is not easy to deform due to collision. The strip-shaped protruding structure 122 of the return spring 10 is in contact with the bracket 30, and when the return spring 10 moves in the bracket 30, the strip-shaped protruding structure is in line contact, so that the sliding resistance of the return spring 10 is small; and the friction plate 20 is elastically limited on the bracket 30 by the upper and lower hooks 13 of the return spring 10, so that the friction plate cannot turn up and down due to line contact.
The embodiment of the application also provides a brake, which comprises the return spring of the friction plate.
Referring to fig. 4 and 5, in some embodiments of the present application, the brake further includes a bracket 30, a friction plate 20, and a support plate 40; the bracket 30 comprises a first groove 31, the supporting piece 40 is provided with a second groove 41, the bracket 30 is connected with the supporting piece 40, the groove wall of the first groove 31 is connected with the groove wall of the second groove 41, and the groove bottom of the first groove 31 is connected with the groove bottom of the second groove 41; the lugs 21 of the friction plate 20 are clamped in the claw parts 12 and the middle connecting parts 11 of the return springs 10, the surfaces of the lugs 21 facing the friction surfaces of the friction plate 20 are in contact with the middle connecting parts 11, and the free ends of the claws 121 press the lugs 21 to prevent the lugs 21 from falling off; the lug 21 and the return spring 10 are provided in the second groove 41, the click portion 12 is in contact with the groove wall of the second groove 41, and the other end of the hook portion 13 of the return spring 10 is in contact with the surface of the bracket 30 facing away from the friction surface of the friction plate 20.
In the embodiment of the present application, the mounting process of the brake is to mount the support piece 40 in the first groove 31 of the bracket 30 as shown in fig. 4, and the clamping portions 42 of the support piece 40 are clamped at the left and right side surfaces of the bracket 30. The lugs 21 of the friction plate 20 are clamped in the space enclosed by the clamping jaw parts 12 and the middle connecting part 11, and the free ends of the clamping jaws 121 press the lugs 21 to prevent the lugs 21 from falling out. The lugs 21 are mounted together with the return spring 10 in the second recess 41 of the support plate 40. The support piece 40 can prevent the return spring 10 from directly contacting the bracket 30, and reduce the abrasion of the bracket 30.
In the embodiment of the present application, the working process of the brake is as shown in fig. 3 and 5: when the vehicle starts to brake, the piston is pushed after hydraulic pressure is generated in the brake caliper, the piston pushes the inner friction plate to press against the brake disc, the caliper body 50 retreats under the reaction force of the hydraulic pressure, and the claw of the caliper body pushes the outer friction plate to press against the brake disc. At this time, the axial displacement generated by the inner friction plate and the outer friction plate causes the restoring force of the return spring 10 to generate a rebound force, and when the hydraulic pressure is released after the braking is finished, the rebound force acts as a return pulling force to drive the friction plate 20 to return, and the gap between the friction plate 20 and the brake disc is released.
It should be noted that, for simplicity of description, the method embodiments are shown as a series of acts, but it should be understood by those skilled in the art that the embodiments are not limited by the order of acts described, as some steps may occur in other orders or concurrently in accordance with the embodiments. Further, those skilled in the art will appreciate that the embodiments described in the specification are presently preferred, and that the acts referred to are not necessarily all required for the embodiments of the present application.
It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.
The embodiments of the present utility model have been described above with reference to the accompanying drawings, but the present utility model is not limited to the above-described embodiments, which are merely illustrative and not restrictive, and many forms may be made by those having ordinary skill in the art without departing from the spirit of the present utility model and the scope of the claims, which are to be protected by the present utility model.
Claims (10)
1. A return spring of a friction plate, characterized in that the return spring (10) comprises an intermediate connecting part (11), a claw part (12) and a hook part (13);
the clamping jaw parts (12) are uniformly distributed at two ends of the middle connecting part (11), one end of each clamping jaw part (12) is connected with the middle connecting part (11), the other end of each clamping jaw part (12) is provided with a clamping jaw (121) bent towards the middle connecting part (11), and a space enclosed by the clamping jaw parts (12) and the middle connecting part (11) is used for clamping the friction plate (20);
the at least two bent hook parts (13) are uniformly distributed at two ends of the middle connecting part (11), and the bent hook parts (13) and the claw parts (12) are positioned at the same side of the middle connecting part (11); one end of the hook part (13) is connected with the middle connecting part (11), the hook parts (13) positioned at two ends of the middle connecting part (11) are bent in the direction away from each other, and the hook parts (13) are used for providing return tension for the friction plate (20).
2. Return spring of a friction plate according to claim 1, characterized in that one end of the intermediate connection portion (11) is connected with at least two of the claw portions (12) and at least one hook portion (13);
the hook part (13) is positioned in the middle of one end of the middle connecting part (11); or alternatively, the process may be performed,
at least two crotch portions (13) are evenly distributed between at least two claw portions (12).
3. The return spring of a friction plate according to claim 1, characterized in that the outer wall of the claw portion (12) is formed with a strip-like projection structure (122), and the extension direction of the strip-like projection structure (122) is perpendicular to the return pulling force direction provided by the hook portion (13).
4. A return spring for a friction plate according to claim 3, characterized in that the middle portion of the claw portion (12) is bent outward to form the strip-like projection structure (122).
5. Return spring of a friction plate according to claim 1, characterized in that the intermediate connection (11) is of sheet-like construction.
6. Return spring of a friction plate according to claim 1, characterized in that the return spring (10) further comprises a bending portion (14), the other end of the hook portion (13) being connected to the bending portion (14), the bending direction of the bending portion (14) being opposite to the bending direction of the hook portion (13).
7. Return spring of a friction plate according to claim 1, characterized in that the hook (13) comprises at least one circular arc segment and at least M straight segments, where M is a natural number.
8. Return spring of a friction plate according to claim 1, characterized in that the intermediate connection part (11), the claw part (12) and the hook part (13) are integrally formed.
9. A brake comprising a return spring of the friction plate of any one of claims 1 to 8.
10. The brake of claim 9, further comprising a bracket (30), a friction plate (20), and a support plate (40); the support (30) comprises a first groove (31), the support sheet (40) is provided with a second groove (41), the support (30) is connected with the support sheet (40), the groove wall of the first groove (31) is connected with the groove wall of the second groove (41), and the groove bottom of the first groove (31) is connected with the groove bottom of the second groove (41);
the lugs (21) of the friction plate (20) are clamped in the claw parts (12) of the return springs (10) and the middle connecting parts (11), and the surfaces of the lugs (21) facing the friction surfaces of the friction plate (20) are in contact with the middle connecting parts (11);
the support lugs (21) and the return springs (10) are arranged in the second grooves (41), the claw portions (12) are in contact with the groove walls of the second grooves (41), and the other ends of the hook portions (13) of the return springs (10) are in abutting connection with the supports (30).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223590895.8U CN218971702U (en) | 2022-12-26 | 2022-12-26 | Return spring and brake of friction plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223590895.8U CN218971702U (en) | 2022-12-26 | 2022-12-26 | Return spring and brake of friction plate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218971702U true CN218971702U (en) | 2023-05-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223590895.8U Active CN218971702U (en) | 2022-12-26 | 2022-12-26 | Return spring and brake of friction plate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218971702U (en) |
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2022
- 2022-12-26 CN CN202223590895.8U patent/CN218971702U/en active Active
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Denomination of utility model: A return spring and brake for a friction plate Granted publication date: 20230505 Pledgee: Tongxiang Science and Technology Entrepreneurship Service Center Co.,Ltd. Pledgor: United New Energy Automobile Co.,Ltd. Registration number: Y2024330000709 |