CN216078062U - Brake caliper guide pin cooperation structure for automobile - Google Patents
Brake caliper guide pin cooperation structure for automobile Download PDFInfo
- Publication number
- CN216078062U CN216078062U CN202121801576.XU CN202121801576U CN216078062U CN 216078062 U CN216078062 U CN 216078062U CN 202121801576 U CN202121801576 U CN 202121801576U CN 216078062 U CN216078062 U CN 216078062U
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- Prior art keywords
- guide pin
- brake caliper
- hole
- guide
- caliper support
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- 238000003860 storage Methods 0.000 claims description 11
- 238000007789 sealing Methods 0.000 claims description 4
- 239000004519 grease Substances 0.000 abstract description 17
- 230000001050 lubricating effect Effects 0.000 abstract description 16
- 230000002159 abnormal effect Effects 0.000 abstract description 3
- 238000013016 damping Methods 0.000 abstract description 3
- 238000005461 lubrication Methods 0.000 abstract description 3
- 230000000694 effects Effects 0.000 abstract description 2
- 239000003921 oil Substances 0.000 description 26
- 210000000080 chela (arthropods) Anatomy 0.000 description 7
- 230000002349 favourable effect Effects 0.000 description 2
- 239000000945 filler Substances 0.000 description 2
- 239000010687 lubricating oil Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 239000006096 absorbing agent Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 230000003313 weakening effect Effects 0.000 description 1
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Abstract
The utility model provides a brake caliper guide pin matching structure for an automobile, which comprises a brake caliper support lug and a brake caliper support, wherein a guide pin is arranged in a guide hole of the brake caliper support, and a threaded hole at the outer end of the guide pin is connected to the brake caliper support lug through a bolt, and is characterized in that: the guide pin between the brake caliper support lug and the brake caliper support is sleeved with a dustproof sleeve, the brake caliper support is provided with an oil filling hole, and the inner end of the oil filling hole is connected to the guide hole. The lubrication effect of the guide pin and the guide hole which are matched with each other is improved, lubricating grease is supplemented to the inside of the mounting bracket through the filling hole, sliding resistance is reduced, dragging torque of the brake caliper is reduced, meanwhile, when the road conditions are bumped, the damping ring on the guide pin is in contact with the guide hole, the generation of knocking abnormal sound is avoided, and the driving comfort of a vehicle is improved.
Description
Technical Field
The utility model belongs to the technical field of automobile parts, and particularly relates to a matching structure of a brake caliper guide pin for an automobile.
Background
In an automobile brake system, a brake caliper is used as an actuating element of a brake terminal, and generally, a piston is pushed by hydraulic pressure or air pressure, and then the piston pushes a friction plate to press a brake disc, so that the braking purpose is realized by friction force. As a single-side piston structure, the floating brake caliper is widely applied due to the advantages of simple structure, low cost, convenience in maintenance and the like.
The floating brake caliper is composed of a fixed caliper frame and a floating caliper body, the caliper frame is fixed on a steering knuckle through a bolt, and the caliper body is connected with a guide pin into a whole through a caliper body fastening bolt and is suspended on the caliper frame through the guide pin, so that the caliper body can slide along the guide pin. When the automobile brakes, the piston pushes the friction plate on one side to move, when the friction plate contacts the brake disc, the caliper body reversely moves due to the reaction force, then the friction plate on the other side is driven to move towards the brake disc, and when the friction plates on the two sides are tightly attached to the brake disc, the purpose of braking can be achieved through the friction force between the friction plates and the brake disc.
At present, a guide pin in an automobile brake caliper is in clearance fit with a guide hole on a caliper body, and lubricating grease is also injected into the guide hole to reduce friction force in order to ensure that the caliper body can freely slide on the guide pin. However, in the current production process, a certain amount of lubricating grease is generally filled in the guide hole, meanwhile, the surface of the guide pin is dipped with a certain amount of lubricating grease, and then the lubricating grease is assembled with each other, the lubricating grease dipped on the surface of the guide pin is blocked at the hole edge of the guide hole on the caliper body during assembly, the lubricating grease filled in the guide hole is pushed to the hole bottom, little lubricating grease is left between the hole wall and the pin body, so that not only is waste caused, but also the guide stroke between the hole wall and the pin body is influenced, even if a small amount of lubricating grease is left between the hole wall and the pin body, during use, most of the lubricating grease is deposited at the hole wall at the lower position of the guide hole due to the action of gravity, the lubricating between the upper part of the guide pin and the guide hole is poor, the sliding resistance is increased, the dragging is increased, and the structure cannot be added without disassembling the guide pin and the caliper body during later use, and simultaneously, the guide pin and the guide hole are in clearance fit, if the fit tolerance is not well controlled, when the automobile passes through a bumpy road surface, the tail part of the guide pin and the guide hole can generate knocking abnormal sound to influence the riding comfort of the automobile.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a brake caliper guide pin matching structure for an automobile, and aims to solve the problem of lubrication between a guide pin and a guide hole and improve the stability of relative movement between the guide pin and the guide hole.
In order to achieve the purpose, the utility model adopts the following technical scheme: the utility model provides a braking pincers guide pin cooperation structure for car, includes braking pincers journal stirrup, braking pincers support, the inside guide pin that is provided with of guiding hole of braking pincers support, the screw hole of guide pin outer end passes through bolted connection on braking pincers journal stirrup, its characterized in that: the guide pin between the brake caliper support lug and the brake caliper support is sleeved with a dustproof sleeve, the brake caliper support is provided with an oil filling hole, and the inner end of the oil filling hole is connected to the guide hole.
Among the above-mentioned scheme, the oil filler point has been seted up on the braking pincers support, can be with lubricating oil filling to the guiding hole through the oil filler point, can improve the cooperation of guiding hole and uide pin from this, need not to set up lubricating oil or fat liquoring agent before both assembles, and can conveniently add after using a period, the lubricated effect of uide pin and guiding hole of mutually supporting has been improved, the inside lubricating grease that carries out of simultaneous filling hole pair installing support is supplied, reduce sliding resistance, reduce the dragging moment of braking pincers, simultaneously when jolting the road conditions, the damping ring on the uide pin touches with the guiding hole, avoid producing and strike the abnormal sound, improve the travelling comfort of vehicle.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is an enlarged view of a portion A of FIG. 1;
fig. 3 is a partially enlarged view of fig. 1 at B.
Detailed Description
As shown in fig. 1, a brake caliper guide pin fitting structure for an automobile, including a brake caliper support lug 10 and a brake caliper support 20, wherein a guide pin 30 is provided inside a guide hole 21 of the brake caliper support 20, and a screw hole at an outer end of the guide pin 30 is connected to the brake caliper support lug 10 by a bolt 40, characterized in that: the guide pin 30 between the brake caliper support lug 10 and the brake caliper support 20 is sleeved with a dustproof sleeve 50, the brake caliper support 20 is provided with an oil filling hole 21, and the inner end of the oil filling hole 22 is connected to the guide hole 21.
In the above scheme, lubricating grease can be filled between the guide pin 30 and the guide hole 21 which are initially assembled through the oil filling hole 22, the assembly efficiency is improved, the waste phenomenon is avoided, the lubricating grease accumulated between the guide pin 30 and the guide hole 21 can be improved and maintained in a lubricating fit state, and the dustproof sleeve 50 arranged at the outer end of the guide hole 21 can prevent dust from entering and prevent grease from overflowing.
The outer end of the oil filling hole 22 is provided with a seal, preferably, the outer end of the oil filling hole 22 is provided with a seal screw plug 60, and the inner section of the oil filling hole 22 is small in hole diameter and the outer section of the oil filling hole is large in hole diameter. The sealing of the outer orifice of the oil filling hole 22 can be conveniently realized by selecting a screw and additionally arranging a sealing ring pad, the small hole diameter of the inner section of the oil filling hole 22 is favorable for weakening the hole wall area and the area of the guide hole 21 occupied by the hole area, and the large hole diameter of the outer section of the oil filling hole 22 is favorable for additionally arranging a sealing screw plug 60 and accommodating a gun muzzle of a lubricant filling gun.
Preferably, the guide pin 30 located in the guide hole 21 has an annular groove 31 on its circumference, and a collar 70 is provided at the annular groove 31. The collar 70 essentially acts as a shock absorber while also acting to limit grease spillage.
More preferably, the annular grooves 31 are spaced apart along the length of the guide pin 30. As can be seen from fig. 1, the annular groove 31 is provided with two passages in the length direction of the guide pin 30, and it is also possible to fill the assembly process with grease, for example, when the guide pin 30 is inserted and the oil filling hole 22 is located between the two annular grooves 31.
The guide pin 30 located in the guide hole 21 has an oil reservoir 32 on its periphery, and the oil reservoir 32 and the annular groove 31 are arranged in a mutually-avoiding manner. The provision of the reservoir 32 ensures that a certain amount of grease is contained therein to provide a stable lubrication action.
The oil reservoir 32 is arranged in a groove length direction parallel to the axial direction of the guide pin 30 or spirally and the oil reservoir 32 is arranged at regular intervals in the circumferential direction of the same shaft section. The oil reservoir 32 is shown in a plan in which the length of the reservoir is parallel to the axial direction of the guide pin 30, and this plan is easy to manufacture. Generally, the depth of the oil storage groove 32 is 2-4 mm, four oil storage grooves are uniformly arranged at intervals in the circumferential direction, the length of the oil storage groove 32 can be considered together with the number of the annular grooves 31, as shown in the figure, two annular grooves 31 are arranged, two oil storage grooves 32 are also arranged, that is, two oil storage grooves 32 are preferably arranged at the inner section and the middle section of the guide pin 30 and two oil storage grooves 32 are arranged at the inner section and the outer section of the guide pin 30, respectively. The middle section is a section between the middle section and the middle section, and may be understood as a section between the two annular grooves 31. Thus, the results of good damping and lubricating effects can be obtained.
Claims (7)
1. A brake caliper guide pin cooperation structure for an automobile comprises a brake caliper support lug (10) and a brake caliper support (20), a guide pin (30) is arranged inside a guide hole (21) of the brake caliper support (20), a threaded hole at the outer end of the guide pin (30) is connected to the brake caliper support lug (10) through a bolt (40), and the brake caliper guide pin cooperation structure is characterized in that: the dustproof sleeve (50) is sleeved on the guide pin (30) between the brake caliper support lug (10) and the brake caliper support (20), the oil filling hole (22) is formed in the brake caliper support (20), and the inner end of the oil filling hole (22) is communicated to the guide hole (21).
2. A brake caliper guide pin fitting structure for an automobile according to claim 1, wherein: the outer end of the oil filling hole (22) is provided with a sealing screw plug (60), and the inner section of the oil filling hole (22) is small in aperture and the outer section of the oil filling hole is large in aperture.
3. A brake caliper guide pin fitting structure for an automobile according to claim 1, wherein: the circumference of the guide pin (30) positioned in the guide hole (21) is provided with an annular groove (31), and a lantern ring (70) is arranged at the annular groove (31).
4. A brake caliper guide pin fitting structure for an automobile according to claim 3, wherein: the annular grooves (31) are arranged at intervals in the longitudinal direction of the guide pin (30).
5. A brake caliper guide pin fitting structure for an automobile according to claim 3, wherein: an oil storage groove (32) is formed in the periphery of the guide pin (30) positioned in the guide hole (21), and the oil storage groove (32) and the annular groove (31) are arranged in a dodging mode.
6. A brake caliper guide pin fitting structure for an automobile according to claim 5, wherein: the oil storage grooves (32) are axially parallel to or spirally arranged with the guide pins (30) in the groove length direction, and the oil storage grooves (32) are uniformly arranged at intervals in the circumferential direction of the same shaft section.
7. A brake caliper guide pin fitting structure for an automobile according to claim 5 or 6, wherein: the annular groove (31) is provided with two parts at the inner section and the middle section of the guide pin (30), and the oil storage groove (32) is provided with two parts at the inner section and the outer section of the guide pin (30).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121801576.XU CN216078062U (en) | 2021-08-03 | 2021-08-03 | Brake caliper guide pin cooperation structure for automobile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121801576.XU CN216078062U (en) | 2021-08-03 | 2021-08-03 | Brake caliper guide pin cooperation structure for automobile |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216078062U true CN216078062U (en) | 2022-03-18 |
Family
ID=80667609
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121801576.XU Active CN216078062U (en) | 2021-08-03 | 2021-08-03 | Brake caliper guide pin cooperation structure for automobile |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216078062U (en) |
-
2021
- 2021-08-03 CN CN202121801576.XU patent/CN216078062U/en active Active
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