CN112303153A - Damping structure for pin shaft of brake caliper - Google Patents
Damping structure for pin shaft of brake caliper Download PDFInfo
- Publication number
- CN112303153A CN112303153A CN201910688292.5A CN201910688292A CN112303153A CN 112303153 A CN112303153 A CN 112303153A CN 201910688292 A CN201910688292 A CN 201910688292A CN 112303153 A CN112303153 A CN 112303153A
- Authority
- CN
- China
- Prior art keywords
- pin shaft
- caliper
- support hole
- dustproof
- brake caliper
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D65/00—Parts or details
- F16D65/005—Components of axially engaging brakes not otherwise provided for
- F16D65/0068—Brake calipers
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D65/00—Parts or details
- F16D65/0006—Noise or vibration control
- F16D65/0018—Dynamic vibration dampers, e.g. mass-spring systems
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D65/00—Parts or details
- F16D65/005—Components of axially engaging brakes not otherwise provided for
- F16D65/0087—Brake housing guide members, e.g. caliper pins; Accessories therefor, e.g. dust boots
Abstract
The invention relates to a brake caliper pin shaft damping structure which comprises a caliper mounting bracket, calipers and a pin shaft, wherein a bracket hole with a blind hole is formed in a pin shaft mounting part of the caliper mounting bracket; the connecting part of the caliper is fixed on the end part of the other end of the pin shaft, and a damping sleeve is arranged on one end part of the pin shaft, which is positioned in the support hole; dustproof one end is provided with the sealing ring, is provided with annular inside lining on the inner wall of sealing ring, and annular inside lining and round pin axle smooth contact. The two-point support of the dustproof piece and the damping sleeve is linear motion to the motion of the pin shaft in the support hole, thereby avoiding the phenomena of eccentric wear and drag wear of the friction block and reducing the occurrence rate of noise. The brake caliper is simple in structure, and vibration and noise of the brake caliper are effectively reduced.
Description
Technical Field
The invention relates to a brake component, in particular to a damping structure for a brake caliper pin shaft.
Background
The automobile brake caliper assembly is used for providing braking force so that a running automobile can be braked and decelerated or braked and stopped according to the operation intention of a driver; with the increasing popularization of domestic automobiles, user groups have higher and higher requirements on the performance of the automobiles, and the related problems of chassis noise, eccentric wear of friction blocks and the like are particularly concerned. As shown in fig. 4, the conventional brake caliper assembly mainly comprises a bolt, a caliper, a pin dust-proof member, a caliper mounting bracket, and a friction block. After the dustproof piece and the pin shaft are in interference fit to form a whole, the dustproof piece is connected with the calipers through the bolts, but the dustproof piece does not support the pin shaft, is not positioned on the calipers mounting bracket, and has relative sliding to influence the sealing performance of the calipers. The pin shaft is in clearance fit with the caliper mounting bracket, the caliper drives the pin shaft to knock the caliper mounting bracket under the influence of the gravity of the caliper in the movement process, so that the movement resistance of the caliper is large, the caliper shakes and shakes to increase in the driving process of a vehicle, large vibration and noise are generated, and the caliper does not return to cause eccentric wear and dragging wear of friction blocks during braking.
A structure for preventing the clamp from shaking to generate noise and avoiding eccentric wear of the friction block needs to be researched.
CN208484679U discloses a pinch roller round pin axle with shock-absorbing function, this application pinch roller round pin axle with shock-absorbing function can carry out the buffering shock attenuation of maximum to the vibrations power of transmission on to self, makes the vibrations power finally unable transmission to the pinch roller on, makes the pinch roller not influenced by the vibrations power, guarantees the effect of sticising of pinch roller to guarantee the brake effect. The damping shaft comprises a shaft body, a shaft head arranged at one end of the shaft body and a clamping groove arranged at the other end of the shaft body, wherein a damping cavity is arranged in the shaft body; a fixing plate is arranged in the middle of the damping cavity; the left and right sides of the fixed plate are provided with a left buffer plate and a right buffer plate; a guide hole is formed in the center of the fixing plate; a buffer rod is arranged on one side of the right buffer plate opposite to the fixed plate; a buffer tube is arranged on one side of the left buffer plate opposite to the fixed plate; and a limiting ring is arranged at the pipe orifice of the buffer pipe opposite to the fixing plate.
CN108700144A discloses a disc brake assembly comprising: an anchor bracket in which at least one hole is formed; a guide pin configured to be slidably supported in the bore, the guide pin having a shaft; at least one primary shock absorber configured to be disposed between the rod and the inner surface of the bore, and configured to bias a portion of the rod against the inner surface of the bore in accordance with a braking load on the disc brake assembly; at least one secondary shock absorber configured to be disposed between the rod and the inner surface, wherein the secondary shock absorber is configured to limit contact between the rod and the inner surface as a function of braking loads on a disc brake assembly. The above is, of course, a useful endeavor in the art.
Disclosure of Invention
The invention aims to provide a brake caliper pin shaft damping structure which solves the technical problems of strong vibration, high noise and serious eccentric wear of friction blocks of the conventional brake caliper.
A damping structure for a pin shaft of a brake caliper comprises a caliper mounting bracket, the caliper and a pin shaft, wherein a bracket hole with a blind hole is formed in a pin shaft mounting part of the caliper mounting bracket, the bracket hole is horizontally arranged along the length direction of the pin shaft mounting part, one end part of the pin shaft extends into the bracket hole, a dustproof part is arranged on the pin shaft outside the bracket hole, the dustproof part is tubular, the middle part of the dustproof part is a corrugated pipe, the dustproof part is sleeved on the pin shaft, one end of the dustproof part, far away from the bracket hole, is in interference fit with the pin shaft, and one end of the dustproof part, close to the bracket hole, is in elastic contact with the opening; the connecting part of the caliper is fixed on the end part of the other end of the pin shaft, a damping sleeve is arranged on one end part of the pin shaft, which is positioned in the support hole, and the damping sleeve is sleeved on the pin shaft and is in clearance fit with the support hole; the dustproof part is provided with the sealing ring with the one end of support hole opening part contact, the sealing ring is fixed and is made its dustproof part and the inside formation confined space in support hole on round pin axle installation department, be provided with annular inside lining on the inner wall of sealing ring, annular inside lining and round pin axle smooth contact.
Further, be provided with annular stopper on the sealing ring outer wall, be provided with on the round pin axle installation department and join in marriage individual spacing groove with the stopper, stopper and spacing groove interference fit form sealedly.
Furthermore, the annular lining is an annular arrangement comb-tooth piece, and a plurality of oil storage pits are formed in the annular lining.
Further, evenly set up a plurality of sliders on the shock attenuation cover outer wall, the length direction of slider with the length direction of shock attenuation cover is unanimous, just be provided with a plurality of oil storage holes on the slider.
Has the advantages that: one end of the dustproof piece is fixed on the pin shaft, and the other end of the dustproof piece is fixed on a pin shaft mounting part at the opening of the bracket hole; the pin shaft is arranged in the support hole, one end of the pin shaft is provided with a damping sleeve, the damping sleeve is directly contacted with the inner wall of the support hole and is supported by the other pin shaft, the damping sleeve and the dustproof piece jointly provide two supporting points for the pin shaft, the pin shaft is not contacted with the inner wall of the support hole, the damping sleeve and the pin shaft are fixedly connected into a whole, the pin shaft is only contacted with the inner wall of the support hole by the damping sleeve in the sliding process, and therefore the friction surface of the pin shaft with the inner wall of the support hole is reduced when the pin shaft slides, and the friction force of the. The dustproof piece and the damping sleeve jointly play a two-point supporting role on the pin shaft, so that the pin shaft is not directly contacted with the support hole, single-point stress of the pin shaft is avoided, the pin shaft is uniformly stressed and cannot knock the support hole to generate abnormal sound, and meanwhile, the two-point support always makes linear motion on the pin shaft in the support hole, so that eccentric wear and dragging wear of a friction block on the caliper are avoided, and the occurrence rate of noise is reduced. The brake caliper is simple in structure, and vibration and noise of the brake caliper are effectively reduced.
Drawings
FIG. 1 is a front elevational view of the brake caliper assembly.
FIG. 2 is a reverse side view of the brake caliper assembly
FIG. 3 is a side elevational view of the brake caliper assembly.
FIG. 4 is a schematic structural view of a conventional brake caliper pin.
FIG. 5 is a schematic view of the brake caliper pin structure of the present invention.
Fig. 6 is a schematic structural view of the pin of the present invention.
Fig. 7 is a schematic view of the structure of the dust-proof component of the present invention.
FIG. 8 is a schematic cross-sectional view of a seal ring of the present invention.
FIG. 9 is a schematic structural view of the pin mounting portion of the present invention.
FIG. 10 is a schematic view of the structure of the shock absorber of the present invention.
Figure 11 is a cross-sectional schematic view of the shock absorber of the present invention.
In the figure: 1-caliper, 11-connection;
2-pin shaft, 21-damping sleeve mounting part;
3-dustproof piece, 31-sealing ring, 32-oil storage tank, 33-limiting block, 34-annular liner;
4-a caliper mounting bracket, 41-a bracket hole, 42-a pin shaft mounting part, 43-a limiting groove and 44-a connecting rib;
5-a friction block;
6-damping sleeve, 61-slide block, 62-oil storage hole;
7-bolt.
Detailed Description
The invention is further described below with reference to the accompanying drawings:
as shown in fig. 5 to 11, a brake caliper pin shaft damping structure includes a caliper mounting bracket 41, a caliper 1, and a pin shaft 2, a pin shaft mounting portion 42 of the caliper mounting bracket 4 is provided with a bracket hole 41 which is a blind hole, the bracket hole 41 is horizontally arranged along the length direction of the pin shaft mounting portion 42, one end portion of the pin shaft 2 extends into the bracket hole 41, the pin shaft located outside the bracket hole is provided with a dust-proof member 3, the dust-proof member 3 is tubular, the middle portion of the dust-proof member is a corrugated tube, the dust-proof member is sleeved on the pin shaft 2, one end of the dust-proof member far away from the bracket hole 41 is in interference fit with the pin shaft 2, and one end of the dust-proof member close to the bracket hole 41; the connecting part 11 of the caliper 1 is fixed on the end part of the other end of the pin shaft 2, a damping sleeve 6 is arranged on one end part of the pin shaft 2 positioned in the support hole 41, and the damping sleeve 6 is sleeved on the pin shaft 2 and is in clearance fit with the support hole 41; in order to ensure that the damping sleeve 6 has enough installation space, the diameter of the installation part of the damping sleeve 6 sleeved on the pin shaft 2 is smaller than that of other parts; the one end of dustproof member 2 and the contact of support hole 41 opening part is provided with sealing ring 31, sealing ring 31 is fixed and is made its dustproof member 3 and the inside formation confined space of support hole 3 on round pin axle mounting portion, and when round pin axle motion, the dustproof member is elongated or compressed, when leading to the confined space volume change, the airtight space of the one end business turn over that the support hole 41 was kept away from to dustproof member 2 that the air current can be smooth under the effect of pressure, does not influence waterproof effect simultaneously yet, be provided with annular inside lining 34 on sealing ring 31's the inner wall, annular inside lining 34 and round pin axle 2 smooth contact. Thus, the contact area between the pin shaft 2 and the inner wall of the dustproof part is reduced, and the friction resistance is reduced.
As shown in fig. 1-3, the structure of the brake caliper assembly includes caliper 1 installed on caliper mounting bracket 4, and caliper mounting bracket 4 is two symmetrical pin shaft mounting portions 42 connected through a connecting rib 44, caliper 1 is installed on caliper mounting bracket 4, and two connecting portions 11 are provided at two sides of caliper 1, connecting portions 11 are fixedly connected with pin shafts 2 through bolts 7, and a pin shaft 2 is installed on each pin shaft mounting portion 42, and friction block 5 is installed in caliper 1, and when the caliper moves, friction block 5 is driven to move so as to generate friction force.
One end of the dustproof piece 3 is fixed on the pin shaft 2, and the other end of the dustproof piece 3 is fixed on the pin shaft mounting part 42 at the opening of the support hole 41, and the middle section of the dustproof piece 3 is a corrugated pipe, so that the movement of the pin shaft 2 cannot be influenced, the dustproof piece 3 has the dustproof and waterproof functions, and the annular lining 34 in the dustproof piece 3 supports the pin shaft 2; the one end that round pin axle 2 is located support hole 41 sets up damping sleeve 6, make its damping sleeve 6 direct and support hole 41 inner wall contact and give another support of round pin axle 2, damping sleeve 6 gives round pin axle 2 two strong points with dustproof member 3 jointly, make its round pin axle 2 and support hole 41 inner wall contactless, damping sleeve 3 becomes a whole with round pin axle 2 fixed connection, make its round pin axle 2 only need damping sleeve 6 and support hole 41 inner wall contact at the slip in-process, make round pin axle 2 reduce with the friction surface of support hole 41 inner wall when sliding like this, make its frictional force reduce. The dustproof part 3 and the damping sleeve 6 jointly play a two-point supporting role on the pin shaft 2, so that the pin shaft 2 is not directly contacted with the support hole 41, the single-point stress of the pin shaft 2 is avoided, the pin shaft 2 cannot knock the support hole 41 to generate abnormal sound due to uniform stress, and meanwhile, the two-point supporting always makes linear motion on the pin shaft 2 in the support hole 41, so that the phenomena of eccentric wear and dragging wear of the friction block 5 are avoided, and the occurrence rate of noise is reduced.
Further, be provided with annular stopper 33 on the sealing ring 31 outer wall, be provided with on the round pin axle installation department 42 with stopper 33 individual spacing groove 43, stopper 33 and spacing groove 43 interference fit form sealedly. Make dust keeper 3 not only with installing support 4 fixed connection like this, stopper 33 and spacing groove 43 combined action form the structure of sealing washer, waterproof dustproof effect of realization that can be better. And the limiting groove 43 may be located on the inner wall of the opening end of the bracket hole, or may be located on the periphery of the opening of the bracket hole.
Further, the annular lining 34 is an annular arrangement comb-tooth member, and a plurality of oil storage pits 32 are arranged on the annular lining 34. Therefore, the contact surface of the pin shaft 2 and the dust-proof part 3 is reduced, the sliding friction is reduced, the annular lining 34 also provides a supporting point for the pin shaft 2 to keep balance and prevent the pin shaft from contacting the inner wall of the support hole 41, and the oil in the oil storage pit 32 provides a lubricating effect for the relative sliding of the pin shaft 2 and the annular lining 34.
Further, a plurality of sliding blocks 61 are uniformly arranged outside the damping sleeve 6, the length direction of each sliding block 61 extends along the length direction of the damping sleeve 6, and a plurality of oil storage holes 62 are formed in each sliding block 61. Thus, the contact surface between the damping sleeve and the inner wall of the bracket hole is reduced, the friction force is reduced, and the relative sliding friction between the damping sleeve 6 and the bracket hole 41 is reduced by the oil in the oil storage hole 62.
The prior art brake caliper assembly is substantially identical to the brake caliper assembly of the present invention in appearance, wherein FIG. 4 is a cross-sectional view A-A of the conventional caliper assembly, and FIG. 5 is a cross-sectional view A-A of the caliper assembly of the present invention.
Claims (4)
1. A damping structure for a brake caliper pin shaft comprises a caliper mounting support (4), a caliper (1) and a pin shaft (2), wherein a support hole (41) which is a blind hole is formed in a pin shaft mounting portion (42) of the caliper mounting support (4), the support hole (41) is horizontally arranged along the length direction of the pin shaft mounting portion (42), one end portion of the pin shaft (2) extends into the support hole (41), a dustproof piece (3) is arranged on the pin shaft positioned outside the support hole, the dustproof piece (3) is tubular, the middle portion of the dustproof piece is a corrugated pipe, the dustproof piece is sleeved on the pin shaft (2), one end of the dustproof piece, which is far away from the support hole (41), is in interference fit with the pin shaft (2), and one end of the dustproof piece, which is close to the support hole (41), is in elastic contact with the opening of the support hole (41) and can; the connecting part (11) of the caliper (1) is fixed on the end part of the other end of the pin shaft (2), and the caliper is characterized in that a damping sleeve (6) is arranged on one end part of the pin shaft (2) positioned in the support hole (41), and the damping sleeve (6) is sleeved on the pin shaft (2) and is in clearance fit with the support hole (41); one end that dustproof member (2) and support hole (41) opening part contacted is provided with sealing ring (31), sealing ring (31) are fixed and are made its dustproof member (3) and the inside formation confined space of support hole (3) on round pin axle installation department, be provided with annular inside lining (34) on the inner wall of sealing ring (31), annular inside lining (34) and round pin axle (2) smooth contact.
2. The brake caliper pin shaft damping structure according to claim 1, wherein an annular limiting block (33) is arranged on the outer wall of the sealing ring (31), a limiting groove (43) matched with the limiting block (33) is arranged on the pin shaft mounting portion (42), and the limiting block (33) is in interference fit with the limiting groove (43).
3. The brake caliper pin shaft shock-absorbing structure according to claim 1, wherein the annular lining (34) is an annular arrangement comb-tooth member, and a plurality of oil storage pits (32) are formed in the annular lining (34).
4. The brake caliper pin shaft shock absorption structure according to claim 1, wherein a plurality of sliding blocks (61) are uniformly arranged on the outer wall of the shock absorption sleeve (6), the length direction of each sliding block (61) is consistent with the length direction of the shock absorption sleeve (6), and a plurality of oil storage holes (62) are formed in each sliding block (61).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910688292.5A CN112303153A (en) | 2019-07-29 | 2019-07-29 | Damping structure for pin shaft of brake caliper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910688292.5A CN112303153A (en) | 2019-07-29 | 2019-07-29 | Damping structure for pin shaft of brake caliper |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112303153A true CN112303153A (en) | 2021-02-02 |
Family
ID=74329428
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910688292.5A Pending CN112303153A (en) | 2019-07-29 | 2019-07-29 | Damping structure for pin shaft of brake caliper |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112303153A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11892043B2 (en) * | 2020-07-15 | 2024-02-06 | Hl Mando Corporation | Boot for caliper brake and caliper brake including the same |
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| JP2006038164A (en) * | 2004-07-29 | 2006-02-09 | Hitachi Ltd | Disc brake |
| US20070084680A1 (en) * | 2004-01-21 | 2007-04-19 | Knorr-Bremse Systeme Fuer Nutzfahrzeuge Gmbh | Disc brake, in particular for a commercial vehicle |
| CN201310578Y (en) * | 2008-12-04 | 2009-09-16 | 武汉万向汽车制动器有限公司 | Supporting and dust-proofing sleeve of brake caliper |
| US20090272607A1 (en) * | 2006-11-09 | 2009-11-05 | Knorr-Bremse Systeme Fuer Nutzfahrzeuge Gmbh | Disc Brake for a Commercial Vehicle |
| US20110186389A1 (en) * | 2008-07-25 | 2011-08-04 | Knorr-Bremse Systeme Fuer Nutzfahrzeuge Gmbh | Bellows Disposed on a Guide Member of a Disc Brake |
| CN202301597U (en) * | 2011-10-14 | 2012-07-04 | 浙江亚太机电股份有限公司 | Guide pin shield for braking callipers |
| US20130161134A1 (en) * | 2011-12-27 | 2013-06-27 | Akebono Brake Industry Co., Ltd. | Disc brake apparatus |
| CN103562585A (en) * | 2011-04-15 | 2014-02-05 | 卢卡斯汽车股份有限公司 | Bolt guiding device for floating caliper disc brake and corresponding floating caliper disc brake |
| CN104196928A (en) * | 2014-08-20 | 2014-12-10 | 安徽江淮汽车股份有限公司 | Pin hole matching structure for brake caliper |
| JP2015124833A (en) * | 2013-12-26 | 2015-07-06 | 三菱自動車エンジニアリング株式会社 | Disc brake device |
| DE102014106533A1 (en) * | 2014-05-09 | 2015-11-12 | Knorr-Bremse Systeme für Nutzfahrzeuge GmbH | Disc brake for a commercial vehicle |
| CN105793597A (en) * | 2013-11-18 | 2016-07-20 | 泛博制动国际有限公司 | Sliding caliper disc brake having evacuation of air between pins and bores |
| CN207569008U (en) * | 2017-12-11 | 2018-07-03 | 安徽江淮汽车集团股份有限公司 | A kind of positioning pin and brake caliper |
| CN208858817U (en) * | 2018-07-30 | 2019-05-14 | 广东中博汽车零部件有限公司 | A kind of floating caliper brake reducing clamp sliding force |
-
2019
- 2019-07-29 CN CN201910688292.5A patent/CN112303153A/en active Pending
Patent Citations (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070084680A1 (en) * | 2004-01-21 | 2007-04-19 | Knorr-Bremse Systeme Fuer Nutzfahrzeuge Gmbh | Disc brake, in particular for a commercial vehicle |
| JP2006038164A (en) * | 2004-07-29 | 2006-02-09 | Hitachi Ltd | Disc brake |
| US20090272607A1 (en) * | 2006-11-09 | 2009-11-05 | Knorr-Bremse Systeme Fuer Nutzfahrzeuge Gmbh | Disc Brake for a Commercial Vehicle |
| US20110186389A1 (en) * | 2008-07-25 | 2011-08-04 | Knorr-Bremse Systeme Fuer Nutzfahrzeuge Gmbh | Bellows Disposed on a Guide Member of a Disc Brake |
| CN201310578Y (en) * | 2008-12-04 | 2009-09-16 | 武汉万向汽车制动器有限公司 | Supporting and dust-proofing sleeve of brake caliper |
| CN103562585A (en) * | 2011-04-15 | 2014-02-05 | 卢卡斯汽车股份有限公司 | Bolt guiding device for floating caliper disc brake and corresponding floating caliper disc brake |
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| CN207569008U (en) * | 2017-12-11 | 2018-07-03 | 安徽江淮汽车集团股份有限公司 | A kind of positioning pin and brake caliper |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11892043B2 (en) * | 2020-07-15 | 2024-02-06 | Hl Mando Corporation | Boot for caliper brake and caliper brake including the same |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20210202 |