CN210141286U - Hydraulic disc brake caliper - Google Patents
Hydraulic disc brake caliper Download PDFInfo
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- CN210141286U CN210141286U CN201920697298.4U CN201920697298U CN210141286U CN 210141286 U CN210141286 U CN 210141286U CN 201920697298 U CN201920697298 U CN 201920697298U CN 210141286 U CN210141286 U CN 210141286U
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Abstract
A hydraulic disc brake caliper comprising a brake disc assembly and a brake caliper assembly; the brake caliper assembly comprises a caliper main body and a caliper accessory; the clamp body is provided with a pair of blind holes which are arranged in a left-right symmetrical manner and a through groove which penetrates through the front part and the rear part, and the blind holes are divided into a left part and a right part by the through groove; the clamp accessory comprises a piston, a supporting shaft seat and a spring; the piston is arranged in the blind hole in a sliding mode, one end of the piston is provided with a friction plate, the other end of the piston is provided with a blind cavity arranged in the direction of the friction plate, the supporting shaft seat is fixedly arranged in the blind hole, one end of the supporting shaft seat close to the friction plate is provided with an annular rectangular groove, the spring is sleeved in the middle of the supporting shaft seat and located in the blind cavity, a limiting ring is arranged in the rectangular groove, a left-right gap exists between the limiting ring and the rectangular groove, and the outer side; a pair of friction pads are positioned relatively inward on opposite sides of the brake disc assembly. The hydraulic disc type brake caliper is simple in structure, automatic adjustment of the gap after the friction plates are abraded is achieved, continuous circulation of hydraulic oil is achieved, the temperature of a system is reduced, and the hydraulic oil is prevented from being too high in temperature.
Description
Technical Field
The utility model relates to an automotive brake field, concretely relates to hydraulic disc formula braking pincers.
Background
When a traditional hydraulic disc brake caliper brakes, brake fluid is pressed into an inner wheel cylinder and an outer wheel cylinder for sealing treatment, and a piston of the traditional hydraulic disc brake caliper presses two brake blocks to a brake disc under the hydraulic action to generate friction torque for braking. At this time, the edge of the rectangular rubber seal in the cylinder groove is slightly elastically deformed by the friction force of the piston. When the brake is released, the piston and the brake block return by the elasticity of the sealing ring and the elasticity of the spring. The rectangular rubber sealing ring has the sealing function, and also has the functions of piston return and automatic clearance adjustment.
However, vehicles such as a loader, a forklift and the like have bad working conditions and frequent braking, on one hand, after a friction plate is worn, the thickness of the friction plate is thinned, the traditional hydraulic disc brake cannot realize automatic clearance adjustment, the braking is not timely, the friction plate needs to be replaced, and waste is caused, in addition, the brake fluid is in a sealed cavity and cannot realize circular flow, a large amount of brake heat energy can be absorbed in the braking process, the brake fluid can even boil in serious cases, and the serious problems of rectangular ring failure, rectangular ring material rebound instability, caliper body oil leakage, braking failure and the like caused by braking heating are solved.
Disclosure of Invention
The utility model provides a hydraulic disc formula braking pincers, simple structure not only realizes the automatic adjustment in friction disc wearing and tearing back clearance, realizes the continuous circulation lowering system temperature of hydraulic oil moreover, avoids hydraulic oil high temperature.
To achieve the above object, the present hydraulic disc brake caliper comprises a brake disc assembly and a brake caliper assembly;
the caliper assembly includes a caliper body and a caliper attachment;
the clamp is characterized in that the clamp body is provided with a pair of blind holes which are arranged in a bilateral symmetry mode and a through groove which penetrates through the front portion and the rear portion, the blind holes are divided into a left portion and a right portion by the through groove, and an end cover is arranged at the opening of the blind holes;
the clamp accessories are four groups and are respectively positioned in the left part and the right part of the pair of blind holes, and each group of clamp accessories comprises a piston, a supporting shaft seat and a spring;
the piston is arranged in the blind hole in a sliding mode, one end of the piston is provided with a friction plate, the other end of the piston is provided with a blind cavity arranged in the direction of the friction plate, the supporting shaft seat is fixedly arranged in the blind hole, one end of the supporting shaft seat close to the friction plate is provided with an annular rectangular groove, the spring is sleeved in the middle of the supporting shaft seat and located in the blind cavity, one end of the spring is in contact with the supporting shaft seat, the other end of the spring is;
a limiting ring is arranged in the rectangular groove, a left gap and a right gap are formed between the limiting ring and the rectangular groove, and the outer side of the limiting ring is in interference fit with the inner wall of the piston blind cavity;
a pair of friction plates are oppositely arranged in the internal through groove and are positioned on two sides of the brake disc assembly.
Further, an oil inlet and an oil outlet are formed in the clamp body, the oil inlet is communicated with the left portion and the right portion of one of the blind holes, the oil outlet is communicated with the left portion and the right portion of the other blind hole, and the left portion and the right portion of one pair of blind holes are communicated through holes respectively.
Furthermore, a snap spring is arranged at the opening of the blind cavity, one end of the spring is in contact with a backing ring which is slidably sleeved on the support shaft seat, and the backing ring is limited by the snap spring.
Furthermore, the outer wall of the piston is connected with the blind hole through a sealing ring, and a dust cover is arranged at one end close to the friction plate.
Furthermore, the clearance between the limiting ring and the rectangular groove is 1mm-3 mm.
Compared with the prior art, the hydraulic disc brake caliper has the advantages that as the four groups of clamp accessories are respectively positioned in the left part and the right part of the pair of blind holes, each group of clamp accessories comprises the piston, the supporting shaft seat and the spring, when the hydraulic disc brake caliper is used for a long time, the piston drives the limiting ring to move when the friction plates become thinner, the limiting ring is blocked by the rectangular groove to stop moving, the piston overcomes the friction force in interference fit with the limiting ring and the compression force of the spring to move forwards, so that the pair of friction plates are contacted with the brake disc assembly, the automatic clearance adjustment between the piston and the friction plates is realized, the self-adjusting function of the sealing ring; the clamp main body is provided with an oil inlet hole and an oil outlet hole, the oil inlet hole is communicated with the left part and the right part of one of the blind holes, the oil outlet hole is communicated with the left part and the right part of the other blind hole, the left part and the right part of one pair of blind holes are respectively communicated through holes, hydraulic oil enters through the oil inlet hole and is discharged from the oil outlet hole, hydraulic control on a piston in each group of clamp accessories is realized, hydraulic oil circulation is realized, cooling treatment can be carried out, and the phenomenon that the clamp accessories are heated and leak oil due to the influence of overhigh temperature of the hydraulic oil on the clamp accessories is avoided; the hydraulic disc type brake caliper is simple in structure, automatic adjustment of the gap after the friction plates are abraded is achieved, continuous circulation of hydraulic oil is achieved, the temperature of a system is reduced, and the hydraulic oil is prevented from being too high in temperature.
Drawings
Fig. 1 is an overall schematic view of the present invention;
fig. 2 is an overall right side view of the present invention;
FIG. 3 is a schematic view of the clamp body of the present invention;
fig. 4 is a schematic view of the support shaft seat of the present invention;
in the figure: 1. the brake disc assembly comprises a brake disc assembly body 2, a brake caliper assembly body 3, a caliper main body 31, a blind hole 32, an oil outlet hole 33, an oil inlet hole 34, a through hole 35, a through groove 4, a supporting shaft seat 41, a backing ring 42, a spring 43, a clamp spring 5, a piston 51, a sealing ring 52, a limiting ring 53, a dust cover 6, a friction plate 7 and an end cover.
Detailed Description
The present invention will be further explained with reference to the accompanying drawings.
As shown in fig. 1, 2, 3, 4, the present hydraulic disc brake caliper includes a brake disc assembly 1 and a brake caliper assembly 2;
the brake caliper assembly 2 comprises a caliper body 3 and a caliper attachment;
the clamp body 3 is provided with a pair of blind holes 31 which are arranged in a left-right symmetrical manner and a through groove 35 which penetrates through the front and the back, the blind holes 31 are divided into a left part and a right part by the through groove 35, and an opening of the blind holes 31 is provided with an end cover 7;
the clamp accessories are four groups and are respectively positioned in the left part and the right part of the pair of blind holes 31, and each group of clamp accessories comprises a piston 5, a supporting shaft seat 4 and a spring 42;
the piston 5 is arranged in the blind hole 31 in a sliding way, one end of the piston is provided with a friction plate 6, the other end of the piston is provided with a blind cavity which is arranged towards the friction plate 6,
the supporting shaft seat 4 is fixedly arranged in the blind hole 31, one end close to the friction plate 6 is provided with an annular rectangular groove, the spring 42 is sleeved in the middle of the supporting shaft seat 4 and is positioned in the blind hole, one end of the spring is in contact with the supporting shaft seat 4, and the other end of the spring is in contact with the piston 5 and is in a compressed state;
a limiting ring 52 is arranged in the rectangular groove, a left gap and a right gap exist between the limiting ring 52 and the rectangular groove, and the outer side of the limiting ring is in interference fit with the inner wall of the blind cavity of the piston 5;
a pair of friction plates 6 are located relatively inwardly of the through slot 35 and on either side of the brake disc assembly 1.
Further, the clamp body 3 is provided with an oil inlet 33 and an oil outlet 32, the oil inlet 33 is communicated with the left part and the right part of one of the blind holes 31, the oil outlet 32 is communicated with the left part and the right part of the other blind hole 31, and the left part and the right part of one pair of blind holes 31 are respectively communicated through a through hole 34; therefore, hydraulic oil enters through the oil inlet hole 33 and is discharged from the oil outlet hole 32, hydraulic control over the piston in each group of clamp accessories is achieved, hydraulic oil circulation is achieved, cooling treatment can be conducted, the phenomenon that the clamp accessories are affected due to the fact that the temperature of the hydraulic oil is too high, and heating and oil leakage occur is avoided.
Furthermore, a snap spring 43 is arranged at the opening of the blind cavity, one end of the spring 42 is in contact with a backing ring 41 which is slidably sleeved on the support shaft seat 4, and the backing ring 41 is limited by the snap spring 43.
Further, the outer wall of the piston 5 is connected with the blind hole 31 through a sealing ring 51, and a dust cover 53 is arranged at one end close to the friction plate 6;
further, the clearance between the limiting ring 52 and the rectangular groove is 1mm-3 mm.
When the hydraulic disc type brake caliper brakes, hydraulic oil enters the caliper main body 3 from the oil inlet 33, and the left part and the right part of each pair of blind holes 31 are communicated through the through holes 34 respectively, so that the left and right clamp accessories in each blind hole 31 work, the piston 5 drives the limiting ring 52 to overcome the compression force of the spring 42 to move relatively under the action of high-pressure hydraulic oil (13Mpa), the moving distance is the clearance between the limiting ring 52 and the rectangular groove on the support shaft seat 4, and then the pair of friction plates 6 are pushed to be in contact with the two sides of the brake disc assembly 1, so that braking is realized;
when stopping braking, carry out the pressure release from oil outlet 32, hydraulic oil pressure reduces, for example for 0.2Mpa, piston 5 is under the compressive force of spring 42, and a pair of friction disc 6 breaks away from the contact with brake disc subassembly 1, and piston 5 drives spacing collar 52 and returns to the clearance of presetting of spacing collar 52 and rectangular channel, and hydraulic oil flows out and continues the circulation reduction system temperature under the effect of gear pump from oil outlet 32 in addition, avoids the too high influence to the clamp annex that causes of hydraulic oil temperature, the phenomenon of the oil leak that generates heat appears.
When the brake disc assembly is used for a long time and the friction disc 6 becomes thin, the piston 5 drives the limiting ring 52 to move, when the stroke of the piston 5 is larger than the clearance between the limiting ring 52 and the rectangular groove, the limiting ring 52 is blocked by the rectangular groove to stop moving, the piston 5 overcomes the friction force in interference fit with the limiting ring 52 and the compression force of the spring 42 to move forwards, so that the pair of friction discs 6 are in contact with the brake disc assembly 1, the automatic clearance adjustment between the piston 5 and the friction discs 6 is realized, the self-adjusting function of the sealing ring 51 depending on the elasticity of the sealing ring 51 is reduced, and the reliability is higher.
The spring 42 is in a pressed state when being installed, the compression force is 750N, the inward movement of the piston 5 under the residual pressure is counteracted (the piston 5 pushes 726.5N under the pressure of 0.2 MPa), the gap is adjusted by the limiting ring 52 and the rectangular groove of the supporting shaft seat 4, and the gap is ensured to be 2 mm.
Claims (5)
1. A hydraulic disc brake caliper comprising a brake disc assembly (1) and a brake caliper assembly (2); it is characterized in that the preparation method is characterized in that,
the brake caliper assembly (2) comprises a caliper body (3) and a caliper attachment;
the clamp is characterized in that the clamp body (3) is provided with a pair of blind holes (31) which are arranged in a bilateral symmetry mode and a through groove (35) which penetrates through the front and the back, the blind holes (31) are divided into a left part and a right part by the through groove (35), and an end cover (7) is arranged at the opening of the blind holes (31);
the clamp accessories are four groups and are respectively positioned in the left part and the right part of the pair of blind holes (31), and each group of clamp accessories comprises a piston (5), a supporting shaft seat (4) and a spring (42);
the piston (5) is arranged in the blind hole (31) in a sliding mode, one end of the piston is provided with a friction plate (6), the other end of the piston is provided with a blind cavity arranged in the direction of the friction plate (6), the supporting shaft seat (4) is fixedly arranged in the blind hole (31), one end of the piston close to the friction plate (6) is provided with an annular rectangular groove, the spring (42) is sleeved in the middle of the supporting shaft seat (4) and located in the blind cavity, one end of the spring is in contact with the supporting shaft seat (4), the other end of the spring is in contact with the piston (5);
a limiting ring (52) is arranged in the rectangular groove, a left gap and a right gap exist between the limiting ring (52) and the rectangular groove, and the outer side of the limiting ring is in interference fit with the inner wall of the blind cavity of the piston (5);
a pair of friction plates (6) are oppositely and inwardly arranged in the through groove (35) and are positioned at two sides of the brake disc component (1).
2. Hydraulic disc brake caliper according to claim 1, characterized in that said caliper body (3) is provided with an oil inlet (33) and an oil outlet (32), said oil inlet (33) communicating with the left and right parts of one of said blind holes (31), said oil outlet (32) communicating with the left and right parts of the other blind hole (31), and the left and right parts of a pair of blind holes (31) communicating with each other through a through hole (34).
3. Hydraulic disc brake caliper according to claim 1 or 2, characterized in that a circlip (43) is provided at the blind cavity opening, one end of the spring (42) is in contact with a backing ring (41) slidingly mounted on the support shaft seat (4), and the backing ring (41) is retained by the circlip (43).
4. Hydraulic disc brake caliper according to claim 3, characterised in that the outer wall of the piston (5) is connected to the blind hole (31) by means of a sealing ring (51), and that a dust cover (53) is provided adjacent to one end of the friction disc (6).
5. A hydraulic disc brake caliper according to claim 1 or 2, wherein the spacing between the retainer (52) and the rectangular slot is 1mm-3 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920697298.4U CN210141286U (en) | 2019-05-15 | 2019-05-15 | Hydraulic disc brake caliper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920697298.4U CN210141286U (en) | 2019-05-15 | 2019-05-15 | Hydraulic disc brake caliper |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210141286U true CN210141286U (en) | 2020-03-13 |
Family
ID=69733820
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920697298.4U Active CN210141286U (en) | 2019-05-15 | 2019-05-15 | Hydraulic disc brake caliper |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210141286U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113107992A (en) * | 2021-04-08 | 2021-07-13 | 玉环思安安全设备股份有限公司 | Brake caliper fixing device |
-
2019
- 2019-05-15 CN CN201920697298.4U patent/CN210141286U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113107992A (en) * | 2021-04-08 | 2021-07-13 | 玉环思安安全设备股份有限公司 | Brake caliper fixing device |
| WO2022213437A1 (en) * | 2021-04-08 | 2022-10-13 | 玉环思安安全设备股份有限公司 | Brake caliper fixing apparatus |
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