CN211901387U - Disc brake pad - Google Patents

Disc brake pad Download PDF

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Publication number
CN211901387U
CN211901387U CN202020372071.5U CN202020372071U CN211901387U CN 211901387 U CN211901387 U CN 211901387U CN 202020372071 U CN202020372071 U CN 202020372071U CN 211901387 U CN211901387 U CN 211901387U
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CN
China
Prior art keywords
friction block
friction
groove
block
brake pad
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.)
Active
Application number
CN202020372071.5U
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Chinese (zh)
Inventor
陈明辉
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
LPR (ZHUHAI) AUTO PARTS Ltd
Original Assignee
LPR (ZHUHAI) AUTO PARTS Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by LPR (ZHUHAI) AUTO PARTS Ltd filed Critical LPR (ZHUHAI) AUTO PARTS Ltd
Priority to CN202020372071.5U priority Critical patent/CN211901387U/en
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Publication of CN211901387U publication Critical patent/CN211901387U/en
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Abstract

The utility model discloses auto-parts's technical field especially relates to a disc brake block, the clutch blocks is convex cubic, both ends all are equipped with the spill inclined plane about the clutch blocks, two logical grooves that link up around seting up on the clutch blocks, the friction surface at the top of clutch blocks with the combination department that leads to the both sides wall of groove is equipped with logical groove chamfer. The concave inclined planes at the two ends of the friction block are matched with the through groove chamfers, pressure distribution of a friction surface on the friction block during braking is improved, the friction block abuts against a brake disc in high-speed rotation in the instant, particularly one end of the friction block facing the brake disc is obvious, external transverse pressure and shearing force borne by the friction block are buffered, the whole internal stress and shearing force of the friction block are better eliminated in the braking process, the friction block can be prevented from cracking in the instant of pressing the friction block and the brake disc, the service life of the brake pad is prolonged, and the like.

Description

Disc brake pad
Technical Field
The utility model relates to an auto-parts's technical field especially relates to a disc brake block.
Background
The automobile brake pad is a key part for the safe running of an automobile, and mainly has the function that the automobile is used for speed reduction or braking in the running process, and the brake pad and a brake disc fixed on a wheel are rubbed to form the braking effect through the mechanical stress on an automobile bottom plate.
The automobile brake pad mainly comprises a friction block and a steel backing fixing the friction block. The friction block is composed of a binder, an antifriction agent, an abrasive, a filling material and the like. At the moment that the friction block abuts against the brake disc rotating at high speed, the friction block bears large external transverse pressure and shearing force, and in the braking process, the inside of the friction block also generates large internal stress and shearing force, so that the friction block is cracked after multiple impacts. The structure of the existing brake pad is too simple, the internal stress and the shearing force can not be well eliminated, and the problems are difficult to solve.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a disc brake block, rational in infrastructure, eliminate internal stress and shearing force better, reduce the clutch blocks fracture, improve the life of brake block.
In order to realize the above object of the present invention, the present invention provides: the utility model provides a disk brake block, the clutch blocks is convex cubic, both ends all are equipped with the spill inclined plane about the clutch blocks, two logical grooves that link up around seting up on the clutch blocks, the friction surface at the top of clutch blocks with the junction of the both sides wall that leads to the groove is equipped with logical groove chamfer.
Preferably, the depth of the through groove is equal to one half to two thirds of the total thickness of the friction block.
Preferably, the width of the through groove is 2.4-3.0 mm.
Preferably, the cross-sectional area of the steel backing is larger than that of the friction block.
Preferably, the through groove and the radial direction of the friction block form an angle of 0-25 degrees.
In addition, preferably, the friction block is made of a heat-conducting wear-resistant material.
The utility model has the advantages that:
compared with the prior art, the utility model discloses have: the concave inclined planes at the two ends of the friction block are matched with the through groove chamfers, so that the pressure distribution of the friction surface on the friction block during braking is improved, particularly, at the moment that the friction block abuts against a brake disc in high-speed rotation, one end of the friction block facing the rotation direction of the brake disc is obvious, the external transverse pressure and the shearing force borne by the friction block are buffered, the integral internal stress and the shearing force of the friction block are better eliminated in the braking process, at the moment that the friction block abuts against the brake disc in high-speed rotation, the concave inclined planes can better absorb strong vibration than the conventional simple chamfers, the friction block is prevented from cracking, and the service life of the brake pad is greatly prolonged; moreover, the friction surface of the friction block and two side walls of the through groove are respectively provided with a through groove chamfer, and the wide opening shape of the through groove chamfer enables the heat generated by friction to be easily dissipated through the air flow in the through groove during the braking of the automobile, so that the heat fading of the friction surface caused by the heat is reduced, and the stable braking force is kept; in addition, the wide opening shape provided with the through groove chamfer is also favorable for removing dust generated during braking operation, and water entering the friction surface can be removed during wading braking, so that the safe braking performance is kept.
Drawings
Fig. 1 is a perspective view of a preferred embodiment of the present invention;
wherein the reference numerals are:
10. a steel backing; 20. a friction block; 201. a concave slope; 202. a through groove; 203. and chamfering the through groove.
The following describes embodiments of the present invention in further detail with reference to the accompanying drawings.
Detailed Description
As shown in fig. 1, the setting direction is as follows, the friction block 20 is in the shape of an arc block, and two ends of the arc block are in the left-right direction; in the radial direction of the arc block, one side of the radius R1 is front, and one side of the radius R2 is rear; the top of the friction block 20 is upper, and the bottom of the steel back 10 is lower.
As shown in fig. 1, a disc brake pad comprises a steel backing 10 and a friction block 20 fixedly combined on the steel backing 10, wherein the friction block 20 is arc-shaped, concave inclined surfaces 201 are arranged at the left end and the right end of the friction block 20, two through grooves 202 which are through from front to back are formed in the friction block 20, and through groove chamfers 203 are arranged at the joints of the friction surface at the top of the friction block 20 and the two side walls of the through grooves 202. The concave inclined planes 201 at the left end and the right end of the friction block 20 are matched with the through groove chamfers 203, so that the pressure distribution of the friction surface on the friction block 20 during braking is improved, at the moment that the friction block 20 abuts against a brake disc in high-speed rotation, particularly, one end of the friction block 20 facing the rotation direction of the brake disc is obvious, the concave inclined planes 201 can better absorb strong vibration compared with the conventional simple chamfers, the external transverse pressure and the shearing force borne by the friction block 20 are buffered, the integral internal stress and the shearing force of the friction block 20 are better eliminated during braking, the friction block 20 is prevented from cracking, and the service life of the brake pad is greatly prolonged; moreover, the friction surface of the friction block 20 and the two side walls of the through groove 202 are respectively provided with a through groove chamfer 203, and the wide opening shape of the through groove chamfer 203 ensures that the heat generated by friction is more easily dissipated through the air flow in the through groove 202 during the automobile braking, the heat fading of the friction surface caused by the heat is reduced, and the stable braking force is kept; in addition, the wide-opening shape provided with the through groove chamfer 203 is also favorable for removing dust generated during braking, accumulated water entering the friction surface can be removed during wading braking, and the safe braking performance is kept.
As shown in fig. 1, the depth H2 of the through slot 202 is equal to one-half to two-thirds of the total thickness H1 of the friction block 20. If the depth H2 of the through groove 202 is too deep, the connecting portion of the friction block 20 at the bottom of the through groove 202 is too thin, the friction block 20 is easily broken by force, and if the depth H2 of the through groove 202 is too shallow, the connecting portion cannot be matched with the concave slopes 201 at two ends of the friction block 20, so that the pressure distribution of the friction surface on the friction block 20 during braking is improved, the internal stress and the shearing force of the whole friction block 20 are better eliminated, and the value of H2 is (1/2-2/3) H1 is reasonable.
As shown in fig. 1, the width G of the through groove 202 is 2.4-3.0 mm.
As shown in fig. 1, the friction block 20 is in the shape of a circular arc block, the inner diameter of the friction block is R1, and the outer diameter of the friction block is R2; the cross-sectional area of the steel back 10 is larger than that of the friction block 20, that is, R1 is larger than the inner diameter W of the steel back 10, R2 is smaller than the outer diameter W of the steel back 10, generally, W is 2 mm, which is beneficial for the steel back 10 to support the base of the friction block 20 and improve the stress distribution of the friction block 20.
As shown in fig. 1, the through groove 202 is at an angle of 0-25 degrees with respect to the radial direction of the friction block 20.
In addition, as shown in fig. 1, the friction block 20 is made of a heat-conducting wear-resistant material, so that heat generated by friction is more easily dissipated when the automobile is braked, heat fading of the friction surface due to heat is reduced, and a stable braking force is maintained.
The above embodiments are merely preferred embodiments of the present invention, and are not intended to limit the scope of the present invention, and all equivalent changes made by the shape, structure and principle of the present invention should be covered by the protection scope of the present invention.

Claims (6)

1. The disc brake pad comprises a steel backing and a friction block fixedly combined on the steel backing, and is characterized in that the friction block is arc-shaped and blocky, concave inclined planes are arranged at the left end and the right end of the friction block, two through grooves which are through from front to back are formed in the friction block, and through groove chamfers are arranged at the joint of the friction surface at the top of the friction block and the two side walls of the through grooves.
2. The disc brake pad of claim 1, wherein the depth of the through groove is equal to one-half to two-thirds of the total thickness of the friction block.
3. The disc brake pad of claim 1, wherein the width of the through slots is 2.4-3.0 millimeters.
4. The disc brake pad of claim 1, wherein the steel backing has a cross-sectional area greater than a cross-sectional area of the friction block.
5. The disc brake pad of claim 1, wherein the through slots are at 0-25 degrees from the radial direction of the pads.
6. The disc brake pad of claim 1, wherein the friction blocks are made of a thermally conductive and wear resistant material.
CN202020372071.5U 2020-03-21 2020-03-21 Disc brake pad Active CN211901387U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202020372071.5U CN211901387U (en) 2020-03-21 2020-03-21 Disc brake pad

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202020372071.5U CN211901387U (en) 2020-03-21 2020-03-21 Disc brake pad

Publications (1)

Publication Number Publication Date
CN211901387U true CN211901387U (en) 2020-11-10

Family

ID=73269716

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202020372071.5U Active CN211901387U (en) 2020-03-21 2020-03-21 Disc brake pad

Country Status (1)

Country Link
CN (1) CN211901387U (en)

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