CN202001528U - Steel backing of disc brake pad - Google Patents
Steel backing of disc brake pad Download PDFInfo
- Publication number
- CN202001528U CN202001528U CN2011200120151U CN201120012015U CN202001528U CN 202001528 U CN202001528 U CN 202001528U CN 2011200120151 U CN2011200120151 U CN 2011200120151U CN 201120012015 U CN201120012015 U CN 201120012015U CN 202001528 U CN202001528 U CN 202001528U
- Authority
- CN
- China
- Prior art keywords
- steel backing
- brake pad
- frictional material
- rivet
- steel
- 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.)
- Expired - Fee Related
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Abstract
The utility model discloses a steel backing of a disc brake pad. The steel backing is characterized in that one face of the steel backing, laminated with a frictional material of the brake pad, is provided with a plurality of semi-counter bored holes, rivets are arranged in the semi-counter bored holes, and one end of each rivet is higher than the surface of the steel backing by 3-5mm. In the utility model, drilled holes instead of punched holes are machined on the steel backing after stamping, so that the steel backing is prevented from deformation due to punching. After the steel backing and a frictional material are pressed and molded, the rivets are inserted into the frictional material; when a vehicle is braked, shear is generated between the frictional material layer and the steel backing, the rivets protruding out of the surface of the steel backing can counteract partial shear force, and when the shear strength is higher than 10MPa, the frictional material cannot fall off from the steel backing, so that higher braking safety performance is ensured. The brake pad product formed by pressing the steel backing with the rivet structure and the frictional material together has the advantages of bright, clean and smooth back face and attractive appearance.
Description
Technical field
The utility model belongs to the auto parts and components field, particularly a kind of steel backing of brake block.
Background technique
Because the performance and the travelling speed of vehicle grow with each passing day, for increase the stability that vehicle brakes when running at high speed, disk type brake has become the main flow of current brake system.
Disc brake pad is to be fitted mutually by the high temperature compacting by steel backing and friction material layer to constitute.Disc brake device be with static brake disc clamp along with the brake disc of tyre rotation to produce frictional force, the speed that turns a wheel reduces.When stepping on braking pedal, piston in the general braking pump can be pushed, and in brake fluid line build-up pressure, pressure is sent to the piston of the wheel cylinder on the brake clamp via brake oil, the piston of wheel cylinder can outwards move and promote brake block and remove to clamp brake disc after being under pressure, and makes brake block and brake disc rub, to reduce vehicle wheel rotational speed, make car deceleration or stop.In the brake system of automobile, brake block is the breaking piece of most critical, and the quality of all braking effects all is that brake block plays a decisive role.
Because the brake disc of disk type brake is exposed in the air, make disk type brake that good thermal diffusivity be arranged, do at fast state when vehicle and bring to a halt or repeatedly brake at short notice that the performance of brake is difficult for decline, can allow vehicle obtain preferable braking effect, to promote the Security of vehicle.
Shear strength between steel backing and the friction material layer is vital for the performance of brake block, if the shear strength deficiency can cause when braking friction material come off from steel backing, cause braking failure and cause accident to produce.
The brake block steel back that has a kind of hole structure in the market.Its working process is to punch on steel backing, then friction material is directly suppressed.In punch process, easily produce the steel backing distortion, make the planeness of brake block steel back not reach requirement or not reach desirable planeness, can only reach the shear strength of 6MPa, and brake block steel back outward appearance with holes is not attractive in appearance.
Also have producer to use the band nail to water foundry goods abroad, the shortcoming of this steel backing is can the scratch brake disc when brake block may wear to the position of nail.Also have mode that a product is to use steel mesh welding to reach the purpose that increases shear strength, the shear strength between steel backing and the friction material can reach 8Mpa.
Summary of the invention
In order to overcome the above-mentioned defective of existing disc type brake block steel back, the utility model provides a kind of steel backing of novel disc brake pad, can significantly improve the shearing force between steel backing and the friction material.
A kind of steel backing of disc brake pad is characterized in that, the one side that steel backing and brake block friction material layer fit is provided with some half counterbores, is provided with rivet in half counterbore, and an end of rivet exceeds steel backing surface 3-5mm.
Further, the described half counterbore degree of depth is 4-6mm, is preferably 5mm.
One end of described rivet exceeds steel backing surface 4mm.
The material of described rivet is copper or aluminium.Because of copper or aluminum rivet hardness are lower, can the scratch brake disc when brake block may wear to the rivet position.
The utility model can use following method to make: after the steel backing punching press is good, bore half counterbore on steel backing, copper or aluminum rivet riveting are gone in half counterbore, rivet one end exceeds steel backing 3-5mm; With steel backing behind degreasing and rust removal with friction material compression moulding.Preparation process is very simple.
The utility model is that not punching changes boring into after the steel backing punching press, avoids because punching causes the steel backing distortion.After steel backing and the friction material compression moulding, rivet inserts in the friction material, vehicle is when braking, produce between friction material layer and the steel backing and shear, the rivet on outstanding steel backing surface can be offset a part of shearing force, when shear strength was higher than 10Mpa, friction material still can not come off from steel backing, thereby had guaranteed higher brake safe performance.The back side that the steel backing of band rivet arrangement is suppressed the brake block finished product that forms with friction material is bright and clean, smooth, appearance looks elegant.
The utility model is particularly useful for the brake system of big bus car.
Description of drawings
Fig. 1 is the floor map of a kind of mode of execution of the utility model.
Fig. 2 is the A-A sectional view of steel backing shown in Figure 1 when rivet is not gone in riveting.
Fig. 3 is the A-A sectional view after rivet is gone in steel backing riveting shown in Figure 1.
Embodiment
The steel backing 1 of disc brake pad as shown in Figure 1-Figure 3, the one side that fits at steel backing 1 and brake block friction material layer is provided with in half counterbore, 2, half counterbores 2 that some degree of depth are 5mm and is provided with copper rivet 3, and an end of rivet 3 exceeds steel backing surface 4mm.
The working process of above-mentioned steel backing: after the steel backing punching press is good, bore half counterbore on steel backing, copper rivet riveting is gone in half counterbore, rivet one end exceeds steel backing 4mm; With steel backing behind degreasing and rust removal with friction material compression moulding.
Claims (5)
1. the steel backing of a disc brake pad is characterized in that, the one side that steel backing and brake block friction material layer fit is provided with some half counterbores, is provided with rivet in half counterbore, and an end of rivet exceeds steel backing surface 3-5mm.
2. the steel backing of disc brake pad as claimed in claim 1 is characterized in that, the described half counterbore degree of depth is 4-6mm.
3. the steel backing of disc brake pad as claimed in claim 2 is characterized in that, the described half counterbore degree of depth is 5mm.
4. the steel backing of disc brake pad as claimed in claim 1 is characterized in that, an end of described rivet exceeds steel backing surface 4mm.
5. the steel backing of disc brake pad as claimed in claim 1 is characterized in that, the material of described rivet is copper or aluminium.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200120151U CN202001528U (en) | 2011-01-14 | 2011-01-14 | Steel backing of disc brake pad |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200120151U CN202001528U (en) | 2011-01-14 | 2011-01-14 | Steel backing of disc brake pad |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202001528U true CN202001528U (en) | 2011-10-05 |
Family
ID=44704270
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200120151U Expired - Fee Related CN202001528U (en) | 2011-01-14 | 2011-01-14 | Steel backing of disc brake pad |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202001528U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107387605A (en) * | 2017-06-01 | 2017-11-24 | 凯盛重工有限公司 | Mining spark-free highly efficient brake block |
-
2011
- 2011-01-14 CN CN2011200120151U patent/CN202001528U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107387605A (en) * | 2017-06-01 | 2017-11-24 | 凯盛重工有限公司 | Mining spark-free highly efficient brake block |
| CN107387605B (en) * | 2017-06-01 | 2024-01-30 | 凯盛重工有限公司 | Mining sparkless high-efficiency brake block |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20111005 Termination date: 20180114 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |