CN104196928A - Pin hole matching structure for brake caliper - Google Patents
Pin hole matching structure for brake caliper Download PDFInfo
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- CN104196928A CN104196928A CN201410413072.9A CN201410413072A CN104196928A CN 104196928 A CN104196928 A CN 104196928A CN 201410413072 A CN201410413072 A CN 201410413072A CN 104196928 A CN104196928 A CN 104196928A
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- pin
- hole
- caliper
- groove
- supporting pin
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Abstract
The invention relates to a pin hole matching structure for a brake caliper. The pin hole matching structure comprises a caliper body, caliper body supports and dustproof covers. Guide pins and supporting pins are fixed to the caliper body, and the supporting pins penetrate through the dustproof covers. Pin holes matched with the supporting pins are formed in the caliper body supports, wherein one end of each pin hole is open. Supporting linings are arranged on the portions, stretching into the pin holes, of the supporting pins. One end of each dustproof cover is arranged between the corresponding pin hole and the corresponding guide pin or the corresponding supporting pin, and the other end of each dustproof cover is matched with an annular groove of the corresponding supporting pin or the corresponding guide pin. By the adoption of the technical scheme, abnormal sound of the brake caliper can be effectively avoided when a vehicle passes an uneven road, and meanwhile sealing performance of the pins and the pin holes of the brake caliper is improved.
Description
Technical field
The invention belongs to automobile brake field, specifically refer to pin and the pin-and-hole cooperating structure of a kind of disc type braking tong inside.
Background technique
The structure of automobile disc type brake tongs adopts floating tong type mostly, and such brake calipers is made up of clamp caliper and caliper bracket two-part.Caliper bracket is fixed on spindle, and clamp caliper is connected with caliper bracket by two pins, can slide axially along pin.Two pins of brake calipers, one to be directed to master, claims guide finger, and one to be supported for master, claims supporting pin.
When driver's foot pedal is braked, promoting piston axial motion, also there is axial displacement in clamp caliper, eliminates friction plate and brake disc gap, produces braking clamping force.Therefore, the cooperation between pin-and-hole affects the service behaviour of brake calipers.
In actual use, usually there is following problem in disc type braking tong:
1, vehicle is when jolting road surface, and " cough up and rattle away " abnormal sound appears in brake calipers place.The main cause of this problem is to have gap between brake calipers guide finger or supporting pin and caliper bracket pin-and-hole.At the road traveling that jolts, caliper is subject to Vertical direction when excitation and causes caliper and support generation relative movement, and when guide finger or supporting pin and pin-and-hole matching gap are when larger, guide finger or supporting pin and pin-and-hole generation Metal Contact, brake calipers abnormal sound just occurs.But guide finger or supporting pin and pin-and-hole matching gap value can not design too small, normally slide otherwise affect caliper, cause the slip resistance of brake calipers caliper excessive.
2, after the long period travels, not good because of sealability between the guide finger of brake calipers or supporting pin and pin-and-hole, cause dust or muddy water to enter pin-and-hole inside, affect brake calipers performance, when serious, even cause brake calipers clamping stagnation.
The structure of existing brake calipers is that guide finger 102 and supporting pin 103 are connected by fastening piece with clamp caliper, form sliding pair with caliper bracket pin-and-hole 101, as shown in Figure 1, by setting rational guide finger 102 and supporting pin 103 and pin-and-hole 101 matching gaps, and on guide finger 102 and supporting pin 103, support bushing 104 is set, meet brake calipers usability demand.By the dirt-proof boot 105 of caliper bracket pin-and-hole opening, realize dustproof, waterproof, anti-lubricating grease leaks.Common structure is to add groove at the outside machine of caliper bracket pin-and-hole opening, and dirt-proof boot is buckled in outward in the exterior channels of pin-and-hole.Although such structure can be good at realizing sealing, still Shortcomings part, mainly:
1) do not utilize preferably the rubber structure of dirt-proof boot to carry out the spacing of guide finger and supporting pin and buffering.While braking as met, caliper slides smooth and easy, avoid again vehicle when jolting road, contact the brake calipers abnormal sound of generation because of guide finger with supporting pin with pin-and-hole, must strictly control the matching gap of guide finger and supporting pin and pin-and-hole, and sell the coaxality while assembling.Production and processing and inspection are had higher requirements, can increase cost; And effect is unsatisfactory, road brake calipers abnormal sound still likely jolts.
2) dustproof, water-proof performance is general, automobile, after long-time use, still there will be the problem of dust, muddy water intrusion pin-and-hole inside.
Summary of the invention
The object of the invention is, by prior art is proposed to improvement project, by the technical program, can solve the abnormal sound problem of brake calipers under the road conditions of jolting, and can improve the sealing of guide finger and supporting pin and the pin-and-hole of brake calipers.
The present invention is achieved by the following technical solutions:
A pin-and-hole cooperating structure for brake calipers, includes caliper, caliper support and dirt-proof boot; On described caliper, be fixed with guide finger and supporting pin;
Described supporting pin is through described dirt-proof boot; On described caliper support, be provided with the pin-and-hole of the end opening coordinating with described supporting pin;
Describedly lead the part that supporting pin stretches in described pin-and-hole and be provided with support bushing;
Opening one end inwall of described pin-and-hole is provided with annular groove; The nearly caliper of described supporting pin one end is provided with annular groove; The outer wall of described dirt-proof boot one end is provided with radial groove; Described annular groove matches with described radial groove axial width to the axial component of described open end; Described radial groove to the axial component of the end face relative with described opening matches with described annular groove axial width;
The internal surface of one end that described dirt-proof boot is relative with described caliper coordinates with described annular groove;
The structure of described guide finger is identical with the structure of described supporting pin.
The outer surface that described guide finger or described supporting pin are provided with support bushing part is provided with groove, and the internal surface of described support bushing is provided with projection; Described projection coordinates with described groove.
The outer surface that described guide finger or described supporting pin are provided with support bushing part is provided with projection, and the internal surface of described support bushing is provided with groove; Described projection coordinates with described groove.
Described support bushing outer surface is evenly distributed in axial groove or helical groove.
The external diameter of described guide finger is greater than the external diameter of described supporting pin.
The axial equal angles that described guide finger or described supporting pin stretch into the end of described pin-and-hole one end cuts three seamed edges.
The inwall of the end that described dirt-proof boot is relative with described caliper is provided with at least one circle radial protrusion structure; The quantity of described protruding structure and axial width coordinate with the axial width of described annular groove.
It between the two end part of described dirt-proof boot, is bellow type structure.
The invention has the beneficial effects as follows:
Technological scheme of the present invention can effectively solve the brake calipers abnormal sound of vehicle when jolting road, simultaneously the sealing at Hoist braking pincers pin and pin-and-hole place.
Brief description of the drawings
Fig. 1 is the pin-and-hole cooperating structure schematic diagram of existing brake calipers;
Fig. 2 is the pin-and-hole cooperating structure schematic diagram of brake calipers of the present invention;
Fig. 3 is brake calipers pin-and-hole opening dirt-proof boot cooperating structure schematic diagram of the present invention;
Fig. 4 is brake calipers pin-and-hole structural representation of the present invention;
Fig. 5 is dust-proof cover structure schematic diagram of the present invention;
Fig. 6 is brake calipers guide finger structural representation of the present invention;
Fig. 7 is the A-A schematic cross-section of Fig. 6;
Fig. 8 is brake calipers supporting pin structural representation of the present invention;
Fig. 9 is brake calipers supporting pin bush structure schematic diagram of the present invention.
Embodiment
Describe by the following examples technological scheme of the present invention in detail, following embodiment is only exemplary, only can be used for explaining and technological scheme of the present invention being described, and can not to be interpreted as is the restriction to technical solution of the present invention.
In this application, the pin-and-hole cooperating structure of guide finger is identical with the pin-and-hole cooperating structure of supporting pin, is describing below as an example of supporting pin example, and guide finger is just no longer carried out to repeat specification.
Fig. 2 is the pin-and-hole cooperating structure schematic diagram of brake calipers of the present invention, adds annular groove at the inside machine of caliper bracket pin-and-hole 1 opening, and dirt-proof boot 5 is embedded between the annular groove and supporting pin 3 or guide finger 2 in pin-and-hole 1.
Shown in Fig. 3 and Fig. 4, on caliper support 7, be respectively arranged with the pin-and-hole 1 of the end opening coordinating with supporting pin 3; Opening one end inwall of pin-and-hole 1 is provided with annular groove 6; Supporting pin 3 is fixed on caliper 8, cooperating structure between supporting pin 3, pin-and-hole 1 and dirt-proof boot 5 is shown in the partial sectional view in Fig. 3 left side, outside dirt-proof boot 5 one end, be buckled in the annular groove of supporting pin top, the other end is embedded between the annular groove 6 and supporting pin 3 in pin-and-hole, and it is all interference fit that two places coordinate.
Cooperating structure between guide finger, pin-and-hole and dirt-proof boot is identical with the structure of supporting pin.
Inside machine at caliper bracket pin-and-hole opening adds annular groove 6, and dirt-proof boot 5 is embedded between pin-and-hole 1 inner ring groove 6 and supporting pin 3, by controlling associated part size, makes rubber material dirt-proof boot in interference fit.Dirt-proof boot cooperating structure has to supporting pin the effect that assembling is spacing and motion cushions, and is conducive to eliminate or weaken the road brake calipers abnormal sound that jolts.In addition dirt-proof boot inner side is supporting pin, and outside is pin-and-hole, and dirt-proof boot forms three place's sealing surfaces because being interference fitted in supporting pin outer wall, pin-and-hole annular groove inwall and pin-and-hole annular groove end, has good sealing, and dust and water are difficult for entering pin-and-hole inside.
Fig. 5 is dust-proof cover structure schematic diagram of the present invention, and the outer wall of dirt-proof boot 5 one end is provided with radial groove 501; The annular groove of pin-and-hole 1 opening inwall matches with above-mentioned radial groove 501 axial widths to the axial component of open end; Radial groove 501 to the axial component 502 of the end face relative with described opening and annular groove 6 axial widths of described pin-and-hole opening matches; The internal surface of the end 503 that dirt-proof boot 5 is relative with described caliper coordinates with the annular groove 9 on supporting pin.Such structure, is arranged between the opening and supporting pin of pin-and-hole one end of dirt-proof boot, plays the effect of sealing and dustproof, simultaneously, in the time there is the power of caliper vertical ground or when the road surface of jolting, supporting pin can be subject to the support of dirt-proof boot, there will not be abnormal sound problem.Between the two end part of dirt-proof boot, be bellow type structure 504, to prevent movement interference.
As shown in Figure 6 and Figure 7, in the supporting pin 3 of brake calipers and the matching relationship of guide finger 2 and pin-and-hole 1, guide finger 2 is less with pin-and-hole 1 matching gap, is conducive to general assembly.The end cross-sectional shape that guide finger 2 stretches into pin-and-hole one end is not circular, but axially equal angles cuts three seamed edges.This project organization is for storing lubricating grease, and lubricating grease free-flow when being convenient to guide finger and sliding, is evenly coated in guide finger surface.
As shown in Figure 8 and Figure 9, in the guide finger 2 of brake calipers and the matching relationship of supporting pin 3 and pin-and-hole 1, for ease of assembling, supporting pin 3 is larger with pin-and-hole 1 matching gap.Be designed with rubber lining 4 in supporting pin 3 bottoms, support bushing 4 is transition or interference fit with pin-and-hole 1, can avoid or weaken the shock because of guide finger and pin-and-hole relative movement generation.The outer ring of support bushing 4 is provided with the axial notch 401 of circumference uniform distribution, in other embodiment of the application, the outer ring of support bushing is provided with the axial screw groove of circumference uniform distribution, it is spiral groove structured in the time that caliper is braked, the power acting on supporting pin is subject to spiral fluted effect, can change linear thrust into part spiral power and radial force, can make operation mild.This project organization is also for storing lubricating grease, and lubricating grease free-flow when being convenient to supporting pin and sliding, is evenly coated in supporting pin surface.The outer surface that supporting pin is provided with support bushing part is provided with groove, and the internal surface of support bushing is provided with projection; Described projection coordinates with described groove.
Although illustrated and described embodiments of the invention, for the ordinary skill in the art, be appreciated that without departing from the principles and spirit of the present invention and can carry out multiple variation, amendment, replacement and modification to these embodiments, scope of the present invention is by claims and be equal to and limit.
Claims (8)
1. a pin-and-hole cooperating structure for brake calipers, includes caliper, caliper support and dirt-proof boot; On described caliper, be fixed with guide finger and supporting pin;
Described supporting pin is through described dirt-proof boot; On described caliper support, be provided with the pin-and-hole of the end opening coordinating with described supporting pin; It is characterized in that:
The part that described supporting pin stretches in described pin-and-hole is provided with support bushing;
Opening one end inwall of described pin-and-hole is provided with annular groove; The nearly caliper of described supporting pin one end is provided with annular groove; The outer wall of described dirt-proof boot one end is provided with radial groove; Described annular groove matches with described radial groove axial width to the axial component of described open end; Described radial groove to the axial component of the end face relative with described opening matches with described annular groove axial width;
The internal surface of one end that described dirt-proof boot is relative with described caliper coordinates with described annular groove;
The structure of described guide finger is identical with the structure of described supporting pin.
2. the pin-and-hole cooperating structure of brake calipers according to claim 1, is characterized in that: the outer surface that described guide finger or described supporting pin are provided with support bushing part is provided with groove, and the internal surface of described support bushing is provided with projection; Described projection coordinates with described groove.
3. the pin-and-hole cooperating structure of brake calipers according to claim 1, is characterized in that: the outer surface that described guide finger or described supporting pin are provided with support bushing part is provided with projection, and the internal surface of described support bushing is provided with groove; Described projection coordinates with described groove.
4. according to the pin-and-hole cooperating structure of the brake calipers described in any one in claims 1 to 3, it is characterized in that: described support bushing outer surface is evenly distributed in axial groove or helical groove.
5. according to the pin-and-hole cooperating structure of the brake calipers described in any one in claims 1 to 3, it is characterized in that: the external diameter of described guide finger is greater than the external diameter of described supporting pin.
6. according to the pin-and-hole cooperating structure of the brake calipers described in any one in claims 1 to 3, it is characterized in that: the end that described guide finger or described supporting pin stretch into described pin-and-hole one end is triangular pyramid or three terrace with edge shapes.
7. the pin-and-hole cooperating structure of brake calipers according to claim 1, is characterized in that: the inwall of the end that described dirt-proof boot is relative with described caliper is provided with at least one circle radial protrusion structure; The quantity of described protruding structure and radial width coordinate with the radial width of described annular groove.
8. according to the pin-and-hole cooperating structure of the brake calipers described in claim 1 or 7, it is characterized in that: between the two end part of described dirt-proof boot, be bellow type structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410413072.9A CN104196928A (en) | 2014-08-20 | 2014-08-20 | Pin hole matching structure for brake caliper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410413072.9A CN104196928A (en) | 2014-08-20 | 2014-08-20 | Pin hole matching structure for brake caliper |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104196928A true CN104196928A (en) | 2014-12-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410413072.9A Pending CN104196928A (en) | 2014-08-20 | 2014-08-20 | Pin hole matching structure for brake caliper |
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| Country | Link |
|---|---|
| CN (1) | CN104196928A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112303153A (en) * | 2019-07-29 | 2021-02-02 | 重庆长安汽车股份有限公司 | Damping structure for pin shaft of brake caliper |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1560676A (en) * | 1976-09-22 | 1980-02-06 | Tokico Ltd | Disc brake |
| CN2729419Y (en) * | 2004-06-09 | 2005-09-28 | 陈利祥 | Hydraulic fist type float pincer double-piston disc brake for vehicle |
| US20080029356A1 (en) * | 2004-06-18 | 2008-02-07 | Georg Halasy-Wimmer | Floating Brake Caliper Disk Brake With Guide Pins |
| JP2011208769A (en) * | 2010-03-30 | 2011-10-20 | Nissin Kogyo Co Ltd | Pin-slide type vehicular disc brake |
| CN202381593U (en) * | 2011-11-21 | 2012-08-15 | 青岛华瑞汽车零部件有限公司 | Double-cylinder hydraulic floatable caliper disc brake |
| CN204004103U (en) * | 2014-08-20 | 2014-12-10 | 安徽江淮汽车股份有限公司 | A kind of pin-and-hole cooperating structure of brake calipers |
-
2014
- 2014-08-20 CN CN201410413072.9A patent/CN104196928A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1560676A (en) * | 1976-09-22 | 1980-02-06 | Tokico Ltd | Disc brake |
| CN2729419Y (en) * | 2004-06-09 | 2005-09-28 | 陈利祥 | Hydraulic fist type float pincer double-piston disc brake for vehicle |
| US20080029356A1 (en) * | 2004-06-18 | 2008-02-07 | Georg Halasy-Wimmer | Floating Brake Caliper Disk Brake With Guide Pins |
| JP2011208769A (en) * | 2010-03-30 | 2011-10-20 | Nissin Kogyo Co Ltd | Pin-slide type vehicular disc brake |
| CN202381593U (en) * | 2011-11-21 | 2012-08-15 | 青岛华瑞汽车零部件有限公司 | Double-cylinder hydraulic floatable caliper disc brake |
| CN204004103U (en) * | 2014-08-20 | 2014-12-10 | 安徽江淮汽车股份有限公司 | A kind of pin-and-hole cooperating structure of brake calipers |
Non-Patent Citations (1)
| Title |
|---|
| 刘春生等: "谈盘式制动器卡滞和异响的设计改进", 《汽车工程师》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112303153A (en) * | 2019-07-29 | 2021-02-02 | 重庆长安汽车股份有限公司 | Damping structure for pin shaft of brake caliper |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
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| CB02 | Change of applicant information |
Address after: 230601 Anhui Province, Hefei City Industrial Park, the Peach Blossom Road No. 669 Applicant after: Anhui Jianghuai Automobile Group Limited by Share Ltd Address before: 230601 Anhui Province, Hefei City Industrial Park, the Peach Blossom Road No. 669 Applicant before: Anhui Jianghuai Automotive Co., Ltd. |
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| COR | Change of bibliographic data | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20141210 |