CN103953666A - Disc brake caliper - Google Patents
Disc brake caliper Download PDFInfo
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- CN103953666A CN103953666A CN201410208637.XA CN201410208637A CN103953666A CN 103953666 A CN103953666 A CN 103953666A CN 201410208637 A CN201410208637 A CN 201410208637A CN 103953666 A CN103953666 A CN 103953666A
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- caliper
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- center line
- friction
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Abstract
The invention relates to a disc brake caliper, which comprises two pins, two friction plates, a piston, mounting holes and other components, wherein the symmetrical center line of the two pins coincides with the symmetrical center line of the two mounting holes, and the center line of the piston has an offset of Delta x from the brake disc screwing direction relative to the symmetrical center line of the two pins or the two mounting holes. The technical scheme can effectively solve the problem that the friction plates of a floating caliper type brake caliper wear unevenly to avoid the problems of abnormal noise of braking, brake torque fluctuation and the like; meanwhile, the service life of the friction plates is prolonged.
Description
Technical field
Patent of the present invention belongs to automobile brake technical field, is specifically related to a kind of structure of disc brake caliper.
Background technique
Passenger car disc brake caliper structure adopts floating tong type mostly at present, and such brake caliper is made up of clamp caliper and caliper bracket two-part.It is upper that caliper bracket is fixed on spindle (also claiming goat's horn), and clamp caliper is connected with caliper bracket by two pins, can slide axially along pin.Floating tong type brake caliper, at the inside and outside both sides of brake disc attaching friction plate, only arranges piston in the inner side of inner attrition piece.When automobile brake, by driver's foot pedal, set up the loine pressure of brake circuit, promoting piston outwards moves, push inner attrition piece to brake disc, meanwhile, the reaction force acting on clamp caliper promotes clamp caliper, move to the inside along two pins, outside friction disc is pressed to brake disc.
Friction plate and brake disc come in contact friction and produce braking moment, thereby make vehicle deceleration.In automobile using process, friction plate can constantly wear and tear because of rubbing action.In practical application, usually have wearing and tearing non-uniform phenomenon through the long-time automobile friction using, be " wedge shape ", the thin side of a side is thick.
Conventionally floating tong type brake caliper adopts symmetric type design, and two are played the pin symmetrical center line of slide-and-guide and supporting effect and two fixed installation hole symmetrical center line of caliper bracket overlap, and the while center line of piston also overlaps with the first two symmetrical center line.
The design attitude of existing brake caliper piston, conventionally in the symmetrical center line of two pins and two mounting holes.In the time of automobile brake, inside and outside two friction plates clamp the brake disc in rotation, thereby realize vehicle lay-off.If plunger designs is in central position, friction plate force bearing point is also at central point in theory, and the pressure distribution of the friction area of whole friction plate is also symmetric.
But, be positioned at the friction plate friction area of brake disc screw-in direction, first contact with brake disc, generation is worn and torn; Be positioned at the friction plate friction area that brake disc screws out direction, contact with brake disc afterwards.Meanwhile, screw out the friction plate part of direction with respect to brake disc, the friction plate part of brake disc screw-in direction, when with brake disc generation rubbing action, is more conducive to heat radiation and gets rid of to fall ash, and therefore wearing and tearing are faster.
This phenomenon, after the long-time use of automobile, can show as: friction disc wear is inhomogeneous, and a side (brake disc screw-in direction) wear extent is large, and residual thickness is little, and opposite side (brake disc back-out direction) wear extent is little, and residual thickness is large.
The adverse effect that friction disc wear is inhomogeneous:
1, affect the laminating of friction plate and brake disc, piston, changed the pressure distribution in drag friction region, may cause braking the problem such as abnormal sound, brake torque variation.
2, cause friction plate to scrap ahead of time.
Summary of the invention
The object of the invention is to improve the inhomogeneous problem of floating tong type brake caliper friction disc wear.
The present invention is achieved by the following technical solutions:
A kind of disc brake caliper, comprises clamp caliper and caliper bracket;
Described caliper bracket is provided with two mounting holes, and caliper bracket is fixed on knuckle by two mounting holes;
Described clamp caliper comprises two pins, a piston and two friction plates;
Described clamp caliper is connected with caliper bracket by two pins, and clamp caliper slides axially along pin;
Described piston is axially disposed within the position between two pins of caliper;
Described friction plate is contained in two internal surfaces of clamp caliper;
Described friction plate is divided into inner attrition piece and outside friction disc, only in the inner side of inner attrition piece, piston is set;
Two pins and two mounting holes of described disc brake caliper all adopt symmetric type design, and two pin symmetrical center line overlap with two fixed installation hole symmetrical center line;
The symmetrical center line of the center line of described piston and two pins or two mounting holes departs from Δ x;
The center line that described Δ x is piston screws out the distance of direction skew with respect to the symmetry center alignment brake disc of two pins or two solid mounting holes.
The pressure distribution of described whole friction plate friction area is mal-distribution, and wherein the suffered pressure of friction area of the friction plate of brake disc back-out direction is greater than the suffered pressure of friction area of brake disc screw-in direction friction plate.
Useful technique effect of the present invention is:
Can effectively solve the inhomogeneous problem of floating tong type brake caliper friction disc wear, friction plate and brake disc, piston are effectively fitted, avoid the problem such as braking abnormal sound, brake torque variation of bringing thus; Avoid automobile after long-time use, friction plate is " wedge shape ", and the thin side of a side is thick, the working life of having improved friction plate.
Brief description of the drawings
Fig. 1 is disc brake caliper piston position skew schematic diagram of the present invention;
Fig. 2 is disc brake caliper front view of the present invention;
Fig. 3 is disc brake caliper plan view of the present invention.
Specific embodiment
Describe technological scheme of the present invention by specific embodiment below, following instance 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.
The application is disc brake caliper before a automobile, describes specific embodiment of the invention scheme in detail below in conjunction with accompanying drawing.
What in Fig. 1, arrow A represented is automobile direction of advance; The rotation of wheel direction that arrow B represents.
As shown in Figure 1 to Figure 3, the disc brake caliper of the present embodiment, comprises clamp caliper and caliper bracket; Caliper bracket is provided with two mounting holes, is respectively fixed installation hole I 7 and fixed installation hole II 8, and caliper bracket is fixed on knuckle by two mounting holes; Clamp caliper mainly comprises two pins, is respectively 6, one pistons 2 of pin I 5 and pin II and two friction plates 1; Clamp caliper is connected with caliper bracket by two pins, and clamp caliper can slide axially along pin; Piston is axially disposed within the position between two pins of caliper; Friction plate is contained in two internal surfaces of clamp caliper, is divided into inner attrition piece and outside friction disc, only in the inner side of inner attrition piece, piston is set; Said in the present embodiment " interior " refers to that near vehicle body inner side be " interior ".
Two pins and two mounting holes of the present embodiment disc brake caliper all adopt symmetric type design, and two pin symmetrical center line overlap with two mounting hole symmetrical center line; The symmetrical center line 10 in the center line 9 of piston and two pins or two fixed installation holes departs from Δ x; Δ x is the center line of piston screws out direction skew distance with respect to the symmetry center alignment brake disc in two pins or two fixed installation holes.Particularly as shown in Figure 1, as shown in the figure, if press traditional braking clamp designs, piston position is positioned in the symmetrical center line in two pins or two fixed installation holes, shown in dotted line for vehicle forward direction and rotation of wheel direction; The present invention, for solving friction disc wear problem of non-uniform, screws out direction shifted by delta x by piston position to brake disc, as shown by the solid line, i.e. and symmetrical center line and piston center line shifted by delta x between the two.It is 4.5mm that the brake caliper piston position of the present embodiment screws out direction shifted by delta x to brake disc.In other embodiment of the application, shifted by delta x can or determine by experiment according to different vehicles.
In practical application, in the time of automobile brake, by driver's foot pedal, set up the loine pressure of brake circuit, promote piston and outwards move, push inner attrition piece to brake disc; Meanwhile, the reaction force acting on clamp caliper promotes clamp caliper, moves to the inside along two pins, and outside friction disc is pressed to brake disc.In the time of automobile brake, inside and outside two friction plates clamp the brake disc in rotation, and friction plate and brake disc come in contact friction and produce braking moment, thereby realize vehicle lay-off.
Be positioned at the friction plate friction area of brake disc screw-in direction, first contact with brake disc, produce wearing and tearing; Be positioned at the friction plate friction area that brake disc screws out direction, contact with brake disc afterwards.Meanwhile, screw out the friction plate part of direction with respect to brake disc, the friction plate part of brake disc screw-in direction, when with brake disc generation rubbing action, is more conducive to heat radiation and gets rid of to fall ash, and therefore wearing and tearing are faster.But the present invention, by the position of brake caliper piston, screws out direction shifted by delta x to brake disc.While implementing braking like this, friction plate force bearing point deflection brake disc screws out direction Δ x, therefore the pressure of the friction area of whole friction plate is mal-distribution, wherein the suffered pressure of friction area 4 of the friction plate of brake disc back-out direction is greater than the suffered pressure of friction area 3 of the friction plate of brake disc screw-in direction.Like this, weakened the wearing and tearing of brake disc screw-in direction one side of friction plate, the brake disc that has increased friction plate screws out the wearing and tearing of direction one side, substantially can offset above-mentioned friction disc wear non-uniform phenomenon.
The present invention can effectively solve the inhomogeneous problem of floating tong type brake caliper friction disc wear, and friction plate and brake disc, piston are effectively fitted, and has avoided the problem such as braking abnormal sound, brake torque variation of bringing thus; Avoid automobile after long-time use, friction plate is " wedge shape ", and the thin side of a side is thick, the working life of having improved friction plate.
The embodiment of the present invention is for disc brake caliper before automobile, and rear disc brake caliper also can be used method of the present invention.
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 (3)
1. a disc brake caliper, comprises clamp caliper and caliper bracket;
Described caliper bracket is provided with two mounting holes, and caliper bracket is fixed on knuckle by two mounting holes;
Described clamp caliper mainly comprises two pins, a piston and two friction plates;
Described clamp caliper is connected with caliper bracket by two pins, and clamp caliper slides axially along pin;
Described piston is axially disposed within the position between two pins of caliper;
Described friction plate is contained in two internal surfaces of clamp caliper;
Two pins and two mounting holes of described disc brake caliper all adopt symmetric type design, and two pin symmetrical center line overlap with two fixed installation hole symmetrical center line;
It is characterized in that:
The symmetrical center line of the center line of described piston and two pins or two mounting holes departs from Δ x;
The center line that described Δ x is piston screws out the distance of direction skew with respect to the symmetry center alignment brake disc of two pins or two solid mounting holes.
2. disc brake caliper according to claim 1, it is characterized in that: the pressure distribution of described whole friction plate friction area is mal-distribution, wherein the suffered pressure of friction area of the friction plate of brake disc back-out direction is greater than the suffered pressure of friction area of brake disc screw-in direction friction plate.
3. disc brake caliper according to claim 1 and 2, is characterized in that: described friction plate is divided into inner attrition piece and outside friction disc, only in the inner side of inner attrition piece, piston is set.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410208637.XA CN103953666A (en) | 2014-05-16 | 2014-05-16 | Disc brake caliper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410208637.XA CN103953666A (en) | 2014-05-16 | 2014-05-16 | Disc brake caliper |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103953666A true CN103953666A (en) | 2014-07-30 |
Family
ID=51330984
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410208637.XA Pending CN103953666A (en) | 2014-05-16 | 2014-05-16 | Disc brake caliper |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103953666A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108730372A (en) * | 2018-06-04 | 2018-11-02 | 广州天下通电子商务有限公司 | A kind of symmetrical reducing brake system |
| CN116292676A (en) * | 2023-02-14 | 2023-06-23 | 贝格纳电子科技(济南)有限公司 | Air pressure disc brake |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4775034A (en) * | 1985-11-16 | 1988-10-04 | Daimler-Benz Aktiengesellschaft | Floating-caliper disc brake |
| DE4125881A1 (en) * | 1990-09-20 | 1992-03-26 | Brembo Spa | Disc brake with fixed brake clamp - has two brake blocks with friction linings, and pressure pieces, with one piston |
| JP2000110859A (en) * | 1998-10-02 | 2000-04-18 | Akebono Brake Ind Co Ltd | Disc brake |
| CN102278398A (en) * | 2010-06-01 | 2011-12-14 | 英国美瑞特重型车制动***有限公司 | Disc brake |
-
2014
- 2014-05-16 CN CN201410208637.XA patent/CN103953666A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4775034A (en) * | 1985-11-16 | 1988-10-04 | Daimler-Benz Aktiengesellschaft | Floating-caliper disc brake |
| DE4125881A1 (en) * | 1990-09-20 | 1992-03-26 | Brembo Spa | Disc brake with fixed brake clamp - has two brake blocks with friction linings, and pressure pieces, with one piston |
| JP2000110859A (en) * | 1998-10-02 | 2000-04-18 | Akebono Brake Ind Co Ltd | Disc brake |
| CN102278398A (en) * | 2010-06-01 | 2011-12-14 | 英国美瑞特重型车制动***有限公司 | Disc brake |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108730372A (en) * | 2018-06-04 | 2018-11-02 | 广州天下通电子商务有限公司 | A kind of symmetrical reducing brake system |
| CN108730372B (en) * | 2018-06-04 | 2020-10-09 | 海门茂发美术图案设计有限公司 | Symmetric reducing brake system |
| CN116292676A (en) * | 2023-02-14 | 2023-06-23 | 贝格纳电子科技(济南)有限公司 | Air pressure disc brake |
| CN116292676B (en) * | 2023-02-14 | 2023-08-22 | 贝格纳电子科技(济南)有限公司 | Air pressure disc brake |
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| C06 | Publication | ||
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Application publication date: 20140730 |