Brake clearance compensation structure and brake thereof

Abstract

The invention relates to a brake clearance compensation structure and a brake thereof, and belongs to the field of brakes. According to the technical scheme, the brake clearance compensation structure comprises a compensation mandrel, an adjusting and shifting sleeve matched with the compensation mandrel, a transmission sleeve and a threaded cylinder, an adjusting and shifting body of an integrated structure is arranged on the outer side of the adjusting and shifting sleeve, a sliding way is arranged on the adjusting and shifting body, the sliding way inclines to the center of the adjusting and shifting sleeve and is in an arc shape, and the inner side of the arc shape surrounds the adjusting and shifting sleeve. The adjusting body is provided with hollow lattices except the sliding sleeve part, an adjusting hole is formed in the V-shaped bottom of the brake arm, the adjusting hole is provided with various adjusting columns, and the other end of each adjusting column is embedded into the sliding way. The shifting slide way of the shifting sleeve is arranged on the external shifting body, and the shifting column is positioned between shifting forks of the brake arm, so that the assembly difficulty is reduced; the distance for adjusting and shifting the slide way is longer, extrusion on the torsion spring is increased, a larger clearance compensation distance can be achieved, and the replacement period of the brake pad is shortened.

Description

Technical Field

[0001] This invention relates to a brake clearance compensation structure and a brake thereof, belonging to the field of brakes. Background Technology

[0002] The brake is the braking device used in automobiles. After braking for a period of time, the brake pads will wear. If the braking distance of the brake remains unchanged, or if gaps appear between the brake pads and the brake disc of the automobile, it is necessary to compensate for the braking distance by addressing the friction gaps.

[0003] Current brake compensation is achieved by adjusting the drive torsion spring structure. The torsion spring accumulates compensation power, which pushes the brake pads to continue moving after the brake pads wear out, until they contact the brake disc for effective braking.

[0004] In compensation structures, the adjusting sleeve structure that drives the torsion spring to store power typically has adjusting holes on its outer circumference and is driven to rotate by the brake pressure arm. However, the outer diameter of the adjusting sleeve is limited, and the adjusting post structure set in the middle of the brake pressure arm's fork is very inconvenient to install. During the pressing process, the material is easily damaged due to exceeding the allowable limit.

[0005] Patent application number 202421515458.6, entitled "A Single-Push Structure Disc Brake Assembly", discloses a single-push structure brake. In brake clearance compensation, the adjustment sleeve is rotated by the concave-convex structure between the pressure arm and the adjustment sleeve. The rotation angle is small and the clearance compensation distance is short. Summary of the Invention

[0006] To address the aforementioned problems, this invention provides a brake clearance compensation structure and its brake, solving the problem of limited distance between the adjustment hole grooves on the outer diameter of the adjustment sleeve structure.

[0007] To achieve the above objectives, the technical solution adopted by the present invention is as follows: The present invention relates to a brake clearance compensation structure, comprising a compensation mandrel, an adjusting sleeve cooperating with the compensation mandrel, a transmission sleeve, and a threaded cylinder. The adjusting sleeve has an integral adjusting body on its outer side, a slide rail on the adjusting body, the slide rail being inclined at the center of the adjusting sleeve and arc-shaped, the inner side of the arc-shaped section surrounding the adjusting sleeve, and the adjusting body having a perforated space except for the slide rail portion. An adjusting hole is provided at the V-shaped bottom of the brake arm, and adjusting posts are provided at various points within the adjusting hole, with the other end of each adjusting post embedded in the slide rail.

[0008] According to the brake clearance compensation adjusting sleeve, the adjusting sleeve is divided into an upper large-diameter end, a middle medium-diameter end and a lower small-diameter end. The large-diameter end is provided with an inner through groove facing inward from the upper end, and the adjusting body of the integral structure is provided on one side of the large-diameter end.

[0009] According to the brake clearance compensation adjusting sleeve, the adjusting body is divided into a connecting part and a sliding groove part. The connecting part is connected from the large diameter end of the adjusting sleeve, and the sliding groove part is located outside the connecting part and extends downward. The sliding groove part and the adjusting sleeve maintain a distance.

[0010] According to the brake clearance compensation adjusting sleeve, the outer side of the groove is pointed at the bottom, wide in the middle and at the top, the outer side is a smooth arc surface, the inner side is a regular arc surface, and the arc surface is a part of the cylindrical surface, with the center coaxial with the center of the adjusting sleeve.

[0011] According to the brake clearance compensation adjusting sleeve, a torsion spring is provided between the small diameter end of the adjusting sleeve and the transmission sleeve. The outside of the torsion spring is the transmission sleeve. The outer shaft surface of the transmission sleeve is provided with a protrusion. The outside of the threaded sleeve is the transmission thread, and the inside is a non-penetrating inner hole. An inner groove that mates with the protrusion of the transmission sleeve is provided in the inner hole. The inner groove extends from the top to the bottom. After the transmission sleeve, adjusting sleeve and compensation mandrel are assembled, they are placed into the inner hole of the threaded sleeve.

[0012] According to the brake clearance compensation adjusting sleeve, the upper part of the threaded sleeve is located between the sliding groove and the large diameter end.

[0013] According to the brake clearance compensation adjusting sleeve, the upper part of the slide is open and the lower part is closed.

[0014] This invention relates to a brake with a brake clearance compensation adjustment sleeve, comprising a brake housing, a compensation mechanism, a brake seat, and a brake arm. The brake housing has an internal cavity with a mounting hole at the top and a brake hole at the bottom. The brake seat is disposed within the cavity, with a brake pad connected to its bottom. A threaded sleeve is installed in the central threaded hole. Brake arc grooves are provided on both sides of the threaded hole in the brake seat. Bearings are mounted on the lower sides of the pressure arm, which are semi-cylindrical surfaces that mate with the brake arc grooves. A positioning shaft is provided on the upper side of the pressure arm and is fixed within the cavity of the brake housing. The top of the compensation spindle is fixed in the mounting hole by a limiting piece.

[0015] The advantage of this invention is that the actuation slide of the adjusting sleeve is set on the external adjusting body, and the adjusting column is located between the forks of the brake arm, which reduces the difficulty of assembly. A longer adjustment track increases the compression of the torsion spring, enabling a greater clearance compensation distance and reducing the brake pad replacement cycle. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of the present invention. Figure 2 This is a top view of the structure of the present invention. Figure 3 yes Figure 2 Cross-sectional view, Figure 4This is a structural diagram of the adjusting sleeve of the present invention. Figure 5 This is a structural diagram of the brake of the present invention. Figure 6 This is a cross-sectional view of the invented brake.

[0017] Figure label: 1. Compensating spindle; 2. Adjusting sleeve; 21. Adjusting body; 22. Slide rail; 23. Hollowed-out spacer; 24. Large diameter end; 25. Medium diameter end; 26. Small diameter end; 3. Transmission sleeve; 31. Protrusion; 4. Threaded cylinder; 41. Inner groove; 5. Torsion spring; 6. Brake arm; 61. Adjusting hole; 62. Bearing; 7. Adjusting column; 8. Brake housing; 81. Limiting plate; 82. Mounting hole; 9. Brake seat; 10. Compensating push plate. Detailed Implementation

[0018] The structure of the present invention will be further described below: The brake clearance compensation structure of the present invention, such as Figures 1-3 As shown, it includes a compensation mandrel 1, an adjusting sleeve 2 that cooperates with the compensation mandrel 1, a transmission sleeve 3, and a threaded cylinder 4. The adjusting sleeve 2 has an integral adjusting body 21 on its outer side. The adjusting body 21 has a slide 22. The slide 22 is inclined to the center of the adjusting sleeve 2 and is arc-shaped. The inner side of the arc shape surrounds a part of the adjusting sleeve 2. The adjusting body 21 has a hollow space 23 except for the sliding part. The brake arm 6 has an adjusting hole 61 at its V-shaped bottom. An adjusting post 7 is set in the adjusting hole 61. The other end of the adjusting post 7 is embedded in the slide 22.

[0019] This invention replaces the original structure of directly setting the slot on the adjusting sleeve with an external adjusting body structure. The corresponding sliding track distance is longer, the rotation angle of the adjusting sleeve is larger, the deformation of the torsion spring is increased, the rotation angle of the transmission sleeve is larger, and the moving distance of the compensation push plate driven by the transmission sleeve is larger, thus achieving a larger distance of braking gap compensation.

[0020] Specifically, the allocation set 2, such as Figure 4 As shown, it is divided into an upper large-diameter end, a middle medium-diameter end and a lower small-diameter end. The large-diameter end is provided with an inner through groove facing inward from the upper end, and the adjustment body 21 of the integral structure is provided on one side of the large-diameter end.

[0021] The adjusting body 21 is divided into a connecting part and a sliding part. The connecting part is connected to the large diameter end of the adjusting sleeve 2, and the sliding part is located outside the connecting part and extends downward. The sliding part and the adjusting sleeve 2 maintain a distance.

[0022] The outer side of the groove is pointed at the bottom, wide in the middle and at the top, with a smooth arc surface on the outer side and a regular arc surface on the inner side. This arc surface is part of a cylindrical surface, and its center is coaxial with the center of the adjusting sleeve 2.

[0023] The upper part of slide 22 is open, and the lower part is closed. The open upper part facilitates the movement of the actuating pin into the slide under the action of the brake arm, while the closed lower part serves as a limit to prevent the actuating pin from coming out of the slide and thus avoids installation failure due to dislodgement during the installation stage.

[0024] In the installation structure, a torsion spring 5 is installed between the small-diameter end of the adjusting sleeve 2 and the transmission sleeve 3. The transmission sleeve 3 is located outside the torsion spring 5. A protrusion 31 is provided on the outer shaft surface of the transmission sleeve 3. The outer surface of the threaded sleeve is a transmission thread, and the inner surface is a non-penetrating inner hole. An inner groove 41 that mates with the protrusion 31 of the transmission sleeve 3 is provided in the inner hole. The inner groove extends from the top to the bottom. After the transmission sleeve 3, adjusting sleeve 2, and compensating mandrel 1 are assembled, they are placed into the inner hole of the threaded sleeve. The upper part of the threaded sleeve is located between the sliding groove and the large-diameter end.

[0025] The brake of the present invention, such as the brake clearance compensation adjusting sleeve, is... Figure 5 and Figure 6 As shown, the device includes a brake housing 8, a compensation mechanism, a brake seat 9, and a brake arm 6. The brake housing 8 has a hollow interior with a mounting hole at the top and a brake hole at the bottom. The brake seat 9 is disposed in the hollow cavity, with a brake pad connected to the bottom and a threaded sleeve installed in the threaded hole in the middle. Brake arc grooves are provided on both sides of the threaded hole of the brake seat 9. The lower sides of both sides of the brake arm 6 are semi-cylindrical surfaces that cooperate with the brake arc grooves to accommodate bearings 62. A positioning shaft is provided on the upper side of the brake arm 6 and is fixed in the hollow cavity inside the brake housing 8. The top of the compensation spindle 1 is fixed in the mounting hole by a limiting piece.

[0026] The advantage of this invention is that the actuation slide of the adjusting sleeve is set on the external adjusting body, and the adjusting column is located between the forks of the brake arm, which reduces the difficulty of assembly. A longer adjustment track increases the compression of the torsion spring, enabling a greater clearance compensation distance and reducing the brake pad replacement cycle.

Claims

1. A brake clearance compensation structure, comprising a compensation mandrel (1), an adjusting sleeve (2) cooperating with the compensation mandrel (1), a transmission sleeve (3), and a threaded cylinder (4), characterized in that, The outer side of the adjusting sleeve (2) is provided with an integral adjusting body (21). The adjusting body (21) is provided with a slide (22). The slide (22) is inclined to the center of the adjusting sleeve (2) and is arc-shaped. The inner side of the arc shape surrounds a part of the adjusting sleeve (2). The adjusting body (21) is provided with a hollow space (23) except for the sliding part. The V-shaped bottom of the brake arm (6) is provided with an adjusting hole (61). An adjusting post (7) is provided in the adjusting hole (61). The other end of the adjusting post (7) is embedded in the slide (22).

2. The brake clearance compensation adjusting sleeve (2) according to claim 1, characterized in that, The adjusting sleeve (2) is divided into an upper large diameter end, a middle medium diameter end and a lower small diameter end. The large diameter end is provided with an inner through groove facing inward from the upper end, and the adjusting body (21) of the integral structure is provided on one side of the large diameter end.

3. The brake clearance compensation adjusting sleeve (2) according to claim 2, characterized in that, The adjusting body (21) is divided into a connecting part and a sliding part. The connecting part is connected to the large diameter end of the adjusting sleeve (2). The sliding part is located outside the connecting part and extends downward. The sliding part and the adjusting sleeve (2) maintain a distance.

4. The brake clearance compensation adjusting sleeve (2) according to claim 3, characterized in that, The outer side of the groove is pointed at the bottom, wide in the middle and at the top, with a smooth arc surface on the outer side and a regular arc surface on the inner side. This arc surface is part of a cylindrical surface, and its center is coaxial with the center of the adjusting sleeve (2).

5. The brake clearance compensation adjusting sleeve (2) according to claim 4, characterized in that, A torsion spring (5) is provided between the small diameter end of the adjusting sleeve (2) and the transmission sleeve (3). The outside of the torsion spring (5) is the transmission sleeve (3). The outer shaft surface of the transmission sleeve (3) is provided with a protrusion (31). The outside of the threaded sleeve is the transmission thread, and the inside is a non-penetrating inner hole. An inner groove (41) that mates with the protrusion (31) of the transmission sleeve (3) is provided in the inner hole. The inner groove extends from the top to the bottom. After the transmission sleeve (3), adjusting sleeve (2) and compensating mandrel (1) are assembled, they are placed in the inner hole of the threaded sleeve.

6. The brake clearance compensation adjusting sleeve (2) according to claim 5, characterized in that, The upper part of the threaded sleeve is located between the groove and the large diameter end.

7. The brake clearance compensation adjusting sleeve (2) according to claim 1, characterized in that, The upper part of the slide (22) is open, and the lower part is closed.

8. A brake with a brake clearance compensation adjusting sleeve as described in claim 5, characterized in that, The device includes a brake housing (8), a compensation mechanism, a brake seat (9), and a brake arm (6). The brake housing (8) has a cavity inside, with an installation hole at the top and a brake hole at the bottom. The brake seat (9) is set in the cavity. The bottom of the brake seat (9) is connected to the brake pad, and a threaded sleeve is installed in the middle threaded hole. Braking arc grooves are provided on both sides of the threaded hole of the brake seat (9). The lower sides of both sides of the brake arm (6) are semi-cylindrical surfaces that cooperate with the braking arc grooves to set bearings (62). A positioning shaft is provided on the upper side of the brake arm (6). The positioning shaft is fixed in the cavity inside the brake housing (8). The top of the compensation spindle (1) is fixed in the installation hole by a limiting piece.

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