Brake assembly, brake and vehicle

Abstract

The utility model discloses a brake assembly, brake and vehicle, including caliper body, transmission piece and drive piece, the transmission piece is assembled in the caliper body and can reciprocate relative to the caliper body, and the transmission piece is used for directly pushing the friction piece when moving, and the friction piece is driven by the drive piece. The driving part is connected with the transmission part and used for driving the transmission part to move relative to the clamp body. The return amount of the transmission piece of the brake assembly is large, and the situation that dragging force between the friction plate and the brake disc is large is avoided.

Description

Technical Field

[0001] The present disclosure relates to the technical field of braking, and in particular to a braking assembly, a brake and a vehicle. Background Art

[0002] The parking brake is an important part of the automobile braking system, which mainly provides a resistance to the car when parking to prevent the car from slipping. However, the existing caliper parking brake has problems such as small piston return amount and large drag force between the friction plate and the brake disc. Utility Model Content

[0003] The present disclosure aims to solve one of the technical problems in the related art at least to some extent.

[0004] To this end, the disclosed embodiment provides a brake assembly, the transmission member of which has a large return amount, thereby avoiding a large drag force between the friction plate and the brake disc.

[0005] The disclosed embodiment also provides a brake including the above-mentioned brake assembly.

[0006] The disclosed embodiment also provides a vehicle including the above brake.

[0007] The brake assembly of the embodiment of the present disclosure comprises:

[0008] Clamp body;

[0009] A transmission member, the transmission member is assembled in the caliper body and can reciprocate relative to the caliper body, and the transmission member is used to directly push the friction member when moving;

[0010] A driving member is connected to the transmission member and is used to drive the transmission member to move relative to the pliers body.

[0011] In some embodiments, the transmission member includes a transmission part and a piston part, one end of the transmission part is connected to the driving member, the piston part is fixed to the other end of the transmission part, and the piston part is used to push the friction member.

[0012] In some embodiments, the transmission portion and the piston portion are integrally formed.

[0013] In some embodiments, a radial dimension of the piston portion is greater than a radial dimension of the transmission portion.

[0014] In some embodiments, the driving member is threadedly engaged with the transmission member, one of the transmission member and the caliper body is provided with a limit groove, and the other is provided with a limit portion, the extension direction of the limit groove is consistent with the moving direction of the transmission member, and the limit portion is slidably engaged in the limit groove.

[0015] In some embodiments, the limiting groove is provided on the caliper body, and the limiting portion is integrally formed on the outer peripheral side of the transmission member.

[0016] In some embodiments, there are multiple limit grooves and limit parts, and the multiple limit grooves and the multiple limit parts are arranged at intervals along the circumference of the transmission member, and the multiple limit parts are respectively stopped and slidably fitted in the multiple limit grooves.

[0017] In some embodiments, the limiting portion is plate-shaped, and the length direction of the limiting portion is consistent with the extension direction of the limiting groove.

[0018] In some embodiments, the caliper body is provided with a chamber having a first opening and a second opening arranged opposite to each other, the end of the driving member facing away from the transmission member extends from the first opening and is used to be connected to the driver, and the end of the transmission member facing away from the driving member extends from the second opening and is used to push the friction member.

[0019] In some embodiments, a stop portion is provided on the outer peripheral side of the driving member, the stop portion is located in the chamber, and the stop portion is used to abut against the inner wall of the chamber to prevent the driving member from escaping from the first opening.

[0020] In some embodiments, an assembly groove is provided on the outer peripheral side of the driving member, and a stop member is provided in the assembly groove. The stop member is located outside the chamber, and the stop member is used to abut against the outer wall of the caliper body to limit the movement of the driving member into the chamber.

[0021] In some embodiments, the piston portion of the transmission member is provided with an annular groove, the annular groove extends along the outer peripheral wall of the piston portion and is closed into a circle, and the annular groove is provided with a sealing member to seal the second opening.

[0022] The brake according to the embodiment of the present disclosure includes a brake assembly as described in any of the above embodiments.

[0023] The vehicle of the disclosed embodiment includes the brake as described in any of the above embodiments.

[0024] Beneficial effects: In the brake assembly, brake and vehicle disclosed herein, the transmission member can directly push the friction member under the drive of the driving member, the structure is simple and the screw sleeve is easily separated from the piston during the return stroke, so that the return amount of the piston is small and the friction member cannot be completely separated from the brake disc, thereby improving the situation where the drag force between the friction plate and the brake disc is large during use. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a cross-sectional schematic diagram of the overall structure of the brake assembly of an embodiment of the present disclosure.

[0026] Figure 2 yes Figure 1 Schematic diagram of the driving and transmission parts.

[0027] Figure 3 It is a partial structural schematic diagram of the brake according to an embodiment of the present disclosure.

[0028] Reference numerals:

[0029] Clamp body 1; chamber 11; limiting groove 12; first opening 13; second opening 14;

[0030] Transmission member 2; transmission part 21; piston part 22; limiting part 23; annular groove 24;

[0031] Driving member 3; abutment portion 31; assembly groove 32;

[0032] Friction member 4. DETAILED DESCRIPTION

[0033] Embodiments of the present disclosure are described in detail below, and examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present disclosure, but should not be understood as limiting the present disclosure.

[0034] In the prior art, the brake assembly of the brake usually includes independent components such as a screw, a sleeve, and a piston. When braking is required, the rotation of the screw drives the sleeve to move, and then the sleeve pushes the piston to move. The moving piston can push the friction plate and fit the friction plate to the brake disc, so that the brake disc can be braked by the friction plate.

[0035] However, when the brake is released, since the sleeve and the piston are independent components, the sleeve and the piston used to push the friction member are easily separated during the return stroke, which results in a smaller return stroke of the piston, so that there is still a large drag force between the friction member and the brake disc.

[0036] The brake assembly of the embodiment of the present disclosure includes a caliper body 1, a transmission member 2 and a driving member 3. Figure 1 As shown, the caliper body 1 may be in a shell shape, the transmission member 2 is assembled in the caliper body 1 and can reciprocate relative to the caliper body 1, and the transmission member 2 is used to push the friction member 4 when moving. For example, a chamber 11 may be provided in the caliper body 1, the transmission member 2 may be fitted in the chamber 11 of the caliper body 1, and the transmission member 2 may reciprocate.

[0037] In some embodiments, Figure 1 As described above, the transmission structure 2 moves in the left-right direction.

[0038] When the transmission member 2 moves to the right, the right end of the transmission member 2 can extend out of the chamber 11 and can come into contact with the friction member 4. The pushing action of the transmission member 2 can drive the friction member 4 to approach the brake disc, so that the friction member 4 can achieve the braking effect on the brake disc.

[0039] When the transmission member 2 moves to the left, the transmission member 2 can be retracted into the chamber 11 of the caliper body 1. At this time, the transmission member 2 will release the stop push on the friction member 4. Since the friction member 4 will also release the contact with the brake disc, etc., the brake can be released.

[0040] The driving member 3 is connected to the transmission member 2 and is used to drive the transmission member 2 to move relative to the caliper body 1. Figure 1 As shown, the driving member 3 can be a rod-shaped structure, the driving member 3 generally extends along the left and right direction, and the right end of the driving member 3 can be connected to the transmission member 2, and the left end of the driving member 3 can be connected to a motor, an electric push rod, etc.

[0041] When in use, the driving member 3 can drive the transmission member 2 to move by means of rotation, translation or other motions, thereby achieving reciprocating movement of the transmission member 2 .

[0042] In the brake assembly disclosed in the present invention, the transmission member 2 is directly connected to the driving member 3, and the transmission member 2 can directly act on the friction member 4. Therefore, when the brake is released, the transmission member 2 can perform a larger return stroke under the action of the driving member 3, avoiding the situation in the prior art that the screw sleeve and the piston used to push the friction member 4 are easily separated during the return stroke, thereby causing the return stroke of the piston to be smaller, so that there is still a large drag force between the friction member 4 and the brake disc.

[0043] In some embodiments, the driving member 3 is threadedly matched with the transmission member 2 , and the transmission member 2 is slidably and non-rotatably matched with the caliper body 1 to drive the transmission member 2 to translate along the axial direction of the transmission member 2 when the driving member 3 rotates.

[0044] For example, one of the driving member 3 and the transmission member 2 may have a screw sleeve structure, and the other may have a screw rod structure, and the driving member 3 and the transmission member 2 are threadedly assembled through the screw sleeve structure and the screw rod structure. The transmission member 2 and the caliper body 1 may be slidably assembled in the left and right directions through a track, etc., and the rotation of the transmission member 2 relative to the caliper body 1 may also be limited by the restriction of the track.

[0045] When in use, the driving member 3 can be driven to rotate. Under the action of the thread, the rotation of the driving member 3 will be converted into a translational movement of the transmission member 2 in the left and right directions, thereby achieving the pushing of the friction member 4.

[0046] The driving precision of the threaded assembly is high, and the fit between the driving member 3 and the transmission member 2 is relatively compact, which fully meets the use requirements of stable transmission between the driving member 3 and the transmission member 2.

[0047] In some embodiments, the transmission member 2 is threadedly assembled on the outer peripheral side of the driving member 3. Specifically, the transmission member 2 can be in the shape of a screw sleeve, and the driving member 3 can be in the shape of a screw rod. The inner peripheral wall of the transmission member 2 is provided with an internal thread, and the outer peripheral side of the driving member 3 is provided with an external thread. When assembling, the transmission member 2 can be directly threadedly assembled on the outer peripheral side of the driving member 3.

[0048] In some other embodiments, the transmission member 2 may also be in the shape of a screw, and the driving member 3 may also be in the shape of a screw sleeve, that is, the driving member 3 may be threadedly assembled on the outer peripheral side of the transmission member 2 .

[0049] In some embodiments, the transmission member 2 includes a transmission part 21 and a piston part 22, the transmission part 21 is threadedly matched with the driving member 3, the piston part 22 is fixed to the transmission part 21, and the piston part 22 is used to push the friction member 4. Figure 2 As shown, the piston part 22 can be located at the right end of the transmission part 21. The piston part 22 can be fixedly connected to the transmission part 21 by bonding, welding, fastener fixation, etc. The transmission part 21 can be a threaded sleeve. During assembly, the transmission part 21 is threadedly assembled on the outer peripheral side of the driving member 3.

[0050] Therefore, the transmission member 2 integrates the threaded sleeve and the piston in the prior art, realizes the integrated arrangement of the two components, reduces the overall number of parts, and thus improves the convenience of assembly.

[0051] In some embodiments, the transmission part 21 and the piston part 22 are integrally formed. For example, the transmission part 21 and the piston part 22 can be made of the same material, and the transmission part 21 and the piston part 22 can be processed and formed by integral injection molding, integral casting, etc.

[0052] In some embodiments, the transmission part 21 is threadedly assembled on the outer peripheral side of the transmission member 2 , the piston part 22 is disposed at the end of the transmission part 21 , and the radial dimension of the piston part 22 is greater than the radial dimension of the transmission part 21 .

[0053] For example, Figure 2 As shown, the transmission part 21 and the piston part 22 can be generally cylindrical, wherein the radial dimension of the transmission part 21 is smaller than the radial dimension of the piston part 22, thereby increasing the effective area of ​​the piston part 22 on the friction member 4, thereby ensuring the stability of the push.

[0054] In some embodiments, one of the transmission member 2 and the caliper body 1 is provided with a limit groove 12, and the other is provided with a limit portion 23, the extension direction of the limit groove 12 is consistent with the translation direction of the transmission member 2, and the limit portion 23 stops rotating and slides in the limit groove 12.

[0055] For example, Figure 1As shown, the limiting groove 12 can be provided in the caliper body 1, and the limiting groove 12 can extend in the left-right direction, the limiting portion 23 can be provided on the outer peripheral side of the transmission member 2, and a part of the limiting portion 23 can be fitted in the limiting groove 12. When in use, the transmission member 2 and the caliper body 1 can be assembled to prevent rotation by the limiting portion 23 and the groove wall of the limiting groove 12. Secondly, the setting of the limiting portion 23 and the limiting groove 12 can also enhance the guiding property of the transmission member 2 relative to the caliper body 1.

[0056] In some other embodiments, the limiting portion 23 may also be provided on the caliper body 1 , and in this case, the limiting groove 12 may be provided on the transmission member 2 .

[0057] In some embodiments, the limiting groove 12 is provided in the caliper body 1, and the limiting portion 23 is integrally formed on the outer peripheral side of the transmission member 2. For example, the limiting portion 23 can be formed on the outer peripheral side of the transmission member 2 by integral injection molding, integral casting, etc., thereby further improving the integration of the overall structure and further reducing the number of parts.

[0058] In some embodiments, there are multiple limit grooves 12 and limit parts 23, and the multiple limit grooves 12 and the multiple limit parts 23 are arranged at intervals along the circumference of the transmission member 2, and the multiple limit parts 23 are respectively stopped and slidably fitted in the multiple limit grooves 12.

[0059] For example, Figure 1 and Figure 2 As shown, two limiting portions 23 may be provided, and both limiting portions 23 may be integrally formed on the outer peripheral side of the transmission member 2, and the two limiting portions 23 may be arranged oppositely in the radial direction of the transmission member 2. Two limiting grooves 12 may also be provided, and the two limiting grooves 12 are arranged oppositely. During assembly, the two limiting portions 23 may be respectively matched in the two limiting grooves 12 in a one-to-one correspondence.

[0060] In some other embodiments, the limiting parts 23 may be provided with three, four, five, etc., and the limiting grooves 12 may be provided with three, four, five, etc. The provision of multiple limiting parts 23 and multiple limiting grooves 12 may enhance the compactness of the structural assembly.

[0061] In some embodiments, the limiting portion 23 is plate-shaped, and the length direction of the limiting portion 23 is consistent with the extension direction of the limiting groove 12. Figure 2 As shown, the limiting portion 23 can be roughly in the shape of a rectangular plate, and the length direction of the limiting portion 23 is the left-right direction. Therefore, the size of the limiting portion 23 inserted into the limiting groove 12 can be increased, thereby enhancing the structural strength during the anti-rotation engagement.

[0062] In some embodiments, the caliper body 1 is provided with a chamber 11, the chamber 11 has a first opening 13 and a second opening 14 arranged opposite to each other, the end of the driving member 3 away from the transmission member 2 extends from the first opening 13 and is used to be connected to the driver, and the end of the transmission member 2 away from the driving member 3 extends from the second opening 14 and is used to push the friction member 4.

[0063] For example, Figure 1 As shown, a cylindrical space may be provided in the clamp body 1, and the cylindrical space forms a chamber 11. The first opening 13 may be provided on the left side of the chamber 11, and the second opening 14 may be provided on the right side of the chamber 11. Both the first opening 13 and the second opening 14 may be circular holes, and the aperture of the second opening 14 is larger than the aperture of the first opening 13.

[0064] During assembly, the left end of the driving member 3 can extend out of the chamber 11 from the first opening 13, and the left end of the driving member 3 can be connected to a driver such as a motor. During use, the right end of the transmission member 2 can extend out of the chamber 11 from the second opening 14, and the right end of the transmission member 2 can push the friction member 4 after extending.

[0065] In some embodiments, a stop portion 31 is disposed on the outer circumference of the driving member 3, the stop portion 31 is located in the chamber 11, and the stop portion 31 is used to abut against the inner wall of the chamber 11 to prevent the driving member 3 from escaping from the first opening 13. Figure 2 As shown, the stop portion 31 can be integrally formed on the outer peripheral side of the driving member 3, and the stop portion 31 can be disc-shaped. When in use, the stop portion 31 can stop with the cavity wall on the peripheral side of the first opening 13, thereby preventing the driving member 3 from escaping from the chamber 11 and ensuring the structural stability of the assembly.

[0066] In some embodiments, an assembly groove 32 is provided on the outer peripheral side of the driving member 3 for a stop member to be inserted. The stop member is located outside the chamber 11 and is used to abut against the outer wall of the pliers body 1 to limit the movement of the driving member 3 into the chamber 11.

[0067] For example, Figure 2 As shown, the assembly groove 32 can be an annular groove, that is, the assembly groove 32 can be extended along the circumference of the driving member 3 to form a circle, and the assembly groove 32 can be located on the left side of the above-mentioned stop portion 31. After the driving member 3 is assembled into the caliper body 1, the assembly groove 32 can be located outside the caliper body 1, and a stopper such as a gasket or a washer can be embedded in the assembly groove 32, and the stopper can be stopped by the left side surface of the caliper body 1, thereby preventing the driving member 3 from entering the chamber 11.

[0068] In some embodiments, Figure 2As shown, the piston part 22 is provided with an annular groove 24, which extends along the outer peripheral wall of the piston part 22 and is closed into a circle, and the annular groove 24 is used for embedding a seal, which can be a ring-shaped dust cover or other structure. The seal is used to achieve sealing of the chamber 11 at the second opening 14, thereby preventing foreign matter from entering the chamber 11 through the second opening 14.

[0069] The brake according to the embodiment of the present disclosure will be described below.

[0070] The brake of the embodiment of the present disclosure includes a brake assembly, which may be a brake assembly as in any of the above embodiments. Figure 3 As shown, the brake further includes a friction member 4 , which may specifically be a friction plate, etc. The friction member 4 may be disposed on the right side of the transmission member 2 , and the brake disc may be disposed on the right side of the friction member 4 .

[0071] When in use, the transmission member 2 can move to the right under the action of the driving member 3. At this time, the transmission member 2 can push the friction member 4 to the right, and the friction member 4 can fit with the brake disc, thereby achieving a braking effect through the friction between the friction member 4 and the brake disc.

[0072] The following describes a vehicle according to an embodiment of the present disclosure.

[0073] The vehicle of the embodiment of the present disclosure includes a brake, and the brake can be a brake as described in any of the above embodiments. The vehicle can be a car, SUV, bus and other vehicles, and of course can also be other vehicles that need to use brakes.

[0074] Although the above embodiments have been shown and described, it is to be understood that the above embodiments are exemplary and are not to be construed as limitations of the present disclosure. Changes, modifications, substitutions and variations of the above embodiments by those of ordinary skill in the art are all within the scope of protection of the present disclosure.

Claims

1. A brake assembly, characterized in that: include: Clamp body; A transmission member, the transmission member is assembled in the caliper body and can reciprocate relative to the caliper body, and the transmission member is used to directly push the friction member when moving; A driving member connected to the transmission member and used to drive the transmission member to move relative to the caliper body; The transmission member comprises a transmission part and a piston part, one end of the transmission part is connected to the driving member, the piston part is fixed to the other end of the transmission part, and the piston part is used to push the friction member.

2. The brake assembly according to claim 1, characterized in that: The transmission part and the piston part are integrally formed.

3. The brake assembly according to claim 1, characterized in that: The radial dimension of the piston portion is greater than the radial dimension of the transmission portion.

4. The brake assembly according to claim 1, characterized in that: The driving member is threadedly matched with the transmission member, one of the transmission member and the caliper body is provided with a limiting groove, and the other is provided with a limiting portion, the extension direction of the limiting groove is consistent with the moving direction of the transmission member, and the limiting portion is slidably matched in the limiting groove.

5. The brake assembly according to claim 4, characterized in that: The limiting groove is arranged on the clamp body, and the limiting portion is integrally formed on the outer peripheral side of the transmission member.

6. The brake assembly according to claim 5, characterized in that There are a plurality of the limiting grooves and the limiting parts, and the plurality of the limiting grooves and the plurality of the limiting parts are arranged at intervals along the circumference of the transmission member, and the plurality of the limiting parts are respectively stopped and slidably fitted in the plurality of the limiting grooves.

7. The brake assembly according to claim 6, characterized in that The limiting portion is plate-shaped, and the length direction of the limiting portion is consistent with the extending direction of the limiting groove.

8. The brake assembly according to any one of claims 1 to 7, characterized in that: The caliper body is provided with a chamber having a first opening and a second opening arranged opposite to each other, the end of the driving member facing away from the transmission member extends out from the first opening and is used to be connected to the driver, and the end of the transmission member facing away from the driving member extends out from the second opening and is used to push the friction member.

9. The brake assembly according to claim 8, characterized in that A stop portion is provided on the outer peripheral side of the driving member. The stop portion is located in the chamber and is used to abut against the inner wall of the chamber to prevent the driving member from escaping from the first opening.

10. The brake assembly according to claim 8, characterized in that An assembly groove is provided on the outer peripheral side of the driving member, and a stopper is provided in the assembly groove. The stopper is located outside the chamber and is used to abut against the outer wall of the caliper body to limit the movement of the driving member into the chamber.

11. The brake assembly according to claim 8, characterized in that The piston portion of the transmission member is provided with an annular groove, the annular groove extends along the outer peripheral wall of the piston portion and is closed into a circle, and the annular groove is provided with a sealing member to seal the second opening.

12. A brake, characterized in that: The invention comprises a brake assembly as claimed in any one of claims 1 to 11.

13. A vehicle, characterized in that: Comprising a brake as claimed in claim 12 above.

Images