CN201310577Y - Brake clip applied in vehicle brake system with parking brake - Google Patents
Brake clip applied in vehicle brake system with parking brake Download PDFInfo
- Publication number
- CN201310577Y CN201310577Y CNU2008202170882U CN200820217088U CN201310577Y CN 201310577 Y CN201310577 Y CN 201310577Y CN U2008202170882 U CNU2008202170882 U CN U2008202170882U CN 200820217088 U CN200820217088 U CN 200820217088U CN 201310577 Y CN201310577 Y CN 201310577Y
- Authority
- CN
- China
- Prior art keywords
- brake
- screw rod
- parking
- piston assembly
- 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.)
- Expired - Lifetime
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Abstract
A brake clip applied in vehicle brake system with parking brake comprises a pulling arm, a parking torsion rod, a clip body and a piston component, wherein the clip body comprises a screw barrel and a screw rod; the pulling arm is fixedly connected with the parking torsion rod; the parking torsion rod is connected with the screw barrel via a flange surface; the clip body is contacted with the piston component via the interaction between the screw barrel and the screw rod; the screw rod is provided with an inclined part at the end contacted with the piston rod. Since the piston component and the screw rod in prior art have unreasonable structure parameters and form arrangement, after longtime application, the brake clip has low reliability, to cause abnormal operation of brake clip. The brake clip has the advantages of high reliability, reduced manufacture, reduced material consumption and long service life.
Description
Technical field
The utility model belongs to the manufacturing technology of automobile chassis braking system, specifically, relates to a kind of brake calipers that is applied to band parking braking in the brake system of car.
Background technique
At present, in the automobile chassis braking system, the brake calipers that adopts all is band parking braking functions mostly.Brake calipers of the prior art generally includes torque arm, drive unit, caliper, piston assembly composition, caliper is provided with brake slipper, when automobile is braked, thereby by stay cord pulling torque arm rotation driver, drive unit promotes piston assembly, piston assembly promotes the brake slipper on the caliper, and brake slipper is realized braking function.But the complex structure of described drive unit, processing and assembling difficulty are big, damage easily.
Therefore, immediate prior art is that above-mentioned drive unit is improved, and the drive unit of original complexity is changed into Parking torsion bar structure, thereby has solved this technical problem.But, caliper is to adopt the structure of swivel nut and screw rod to realize with contacting of piston assembly in the prior art, because the structural parameter and the arranged in form of piston assembly and screw rod are unreasonable in the prior art, after working long hours, can cause the low technological deficiency of brake calipers reliability, thereby cause the brake calipers can't proper functioning.
The model utility content
The technical problem that the utility model overcame is, caliper is to adopt the structure of swivel nut and screw rod to realize with contacting of piston assembly in the prior art, because the structural parameter and the arranged in form of piston assembly and screw rod are unreasonable in the prior art, after working long hours, can cause the low technological deficiency of brake calipers reliability, thereby cause the technical problem that brake calipers can't proper functioning, and a kind of brake calipers that is applied to band parking braking in the brake system of car is provided.
Technological scheme provided by the utility model is, a kind of brake calipers that is applied to band parking braking in the brake system of car, comprise torque arm, Parking torsion bar, caliper, piston assembly, described caliper comprises swivel nut and screw rod, described torque arm is fixedlyed connected with described Parking torsion bar, the Parking torsion bar is connected with described swivel nut by flanged surface, and described caliper interacts with screw rod by swivel nut and contacts with described piston assembly, and the contacted contact jaw of described screw rod and piston assembly is made as rake.
Described rake is a conus portion.
The contact cone angle design of described conus portion is 30 °-80 °.
The contact cone angle of described conus portion is preferably designed for 45 °-50 °.
The contact cone angle optimal design of described conus portion is 47.5 °.
Adopt technological scheme provided by the utility model, compared with prior art, original common surface of contact is improved to the conical surface with several angle, and through a large amount of verification experimental verifications repeatedly, with the cone angle design that contacts of screw rod and piston assembly is 45 °-50 °, can solve effectively that caliper and contacting of piston assembly are to adopt the structure of swivel nut and screw rod to realize in the prior art, because the structural parameter and the arranged in form of piston assembly and screw rod are unreasonable in the prior art, after working long hours, can cause the low technological deficiency of brake calipers reliability, thereby cause the technical problem that brake calipers can't proper functioning; The utility model also has the advantage that unfailing performance is good, save manufacture cost, saving material, long service life etc. simultaneously.
Description of drawings
In conjunction with the accompanying drawings, the utility model is described further
Fig. 1 is the utility model structural representation;
Wherein, 1. torque arm, 2. torsion bar, 3. caliper, 4. swivel nut, 5. screw rod, 6. piston assembly.
Embodiment
As shown in Figure 1, the technological scheme that the utility model provides is a kind of brake calipers that is applied to band parking braking in the brake system of car, comprise torque arm 1, Parking torsion bar 2, caliper 3, piston assembly 6, described caliper 3 comprises swivel nut 4 and screw rod 5, described torque arm 1 is fixedlyed connected with described Parking torsion bar 2, Parking torsion bar 2 is connected with described swivel nut 4 by flanged surface, described caliper 3 interacts with screw rod 5 by swivel nut 4 and contacts with described piston assembly 6, and described screw rod 5 and piston assembly 6 contacted contact jaws are made as rake; The contact cone angle design of described conus portion is 30 °-80 °; The contact cone angle of described conus portion is preferably designed for 45 °-50 °; The contact cone angle optimal design of described conus portion is 47.5 °.
The annexation of technological scheme provided by the utility model is in caliper 3, one Parking torsion bar 2 is arranged, the end of this torsion bar 2 in caliper 3 has a flange, the one side of flange contacts with cylinder body, and another side has raised or sunken groove, can embed groove or projection in the swivel nut 4 that is attached thereto versatilely, torsion bar 2 both can contact also and can not contact according to the state of working with the axial end of swivel nut 4.The other end of torsion bar 2 passes caliper 3 versatilely and has arrived outside the caliper 3, be fixed with one with torque arm 1, when torque arm 1 rotation, drive swivel nut 4 rotations by torsion bar 2, swivel nut 4 rotations just move with piston assembly 6 straight lines outward by lead-screw 5, swivel nut and screw flight are designed to the four-head screw thread, and helical pitch is 11-20mm.In order to prevent that screw rod 5 and piston from skidding, will contact cone angle design is 45 °-50 °, and optimum scheme is 47.5 °, thereby can prevent that screw rod 5 and piston assembly 6 from producing rotation mutually, thereby reaches the purpose of parking braking reliably.
The beneficial effects of the utility model are that the brake calipers of this band parking function has the high advantage of reliability.
Technological scheme provided by the utility model, compared with prior art, screw rod 5 and piston assembly 6 have been carried out technological improvement, through a large amount of experimental verifications, surface of contact between described screw rod 5 and the piston assembly 6 is made the conical surface with several angle, thereby prevent that screw rod 5 and piston assembly 6 from producing rotation mutually, thereby reach the purpose of parking braking reliably.
Claims (5)
1, a kind of brake calipers that is applied to band parking braking in the brake system of car, comprise torque arm (1), Parking torsion bar (2), caliper (3), piston assembly (6), described caliper (3) comprises swivel nut (4) and screw rod (5), described torque arm (1) is fixedlyed connected with described Parking torsion bar (2), Parking torsion bar (2) is connected with described swivel nut (4) by flanged surface, described caliper (3) interacts with screw rod (5) by swivel nut (4) and contacts with described piston assembly (6), it is characterized in that described screw rod (5) and the contacted contact jaw of piston assembly (6) are made as rake.
2, a kind of brake calipers that is applied to band parking braking in the brake system of car as claimed in claim 1 is characterized in that described rake is a conus portion.
3, a kind of brake calipers that is applied to band parking braking in the brake system of car as claimed in claim 2 is characterized in that the contact cone angle design of described conus portion is 30 °-80 °.
4, a kind of brake calipers that is applied to band parking braking in the brake system of car as claimed in claim 3 is characterized in that the contact cone angle design of described conus portion is 45 °-50 °.
5, a kind of brake calipers that is applied to band parking braking in the brake system of car as claimed in claim 4 is characterized in that the contact cone angle design of described conus portion is 47.5 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008202170882U CN201310577Y (en) | 2008-12-17 | 2008-12-17 | Brake clip applied in vehicle brake system with parking brake |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008202170882U CN201310577Y (en) | 2008-12-17 | 2008-12-17 | Brake clip applied in vehicle brake system with parking brake |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201310577Y true CN201310577Y (en) | 2009-09-16 |
Family
ID=41107830
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008202170882U Expired - Lifetime CN201310577Y (en) | 2008-12-17 | 2008-12-17 | Brake clip applied in vehicle brake system with parking brake |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201310577Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101722945B (en) * | 2009-12-12 | 2012-10-24 | 芜湖伯特利汽车安全系统有限公司 | Brake caliper assembly for electronic parking braking system of vehicle |
-
2008
- 2008-12-17 CN CNU2008202170882U patent/CN201310577Y/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101722945B (en) * | 2009-12-12 | 2012-10-24 | 芜湖伯特利汽车安全系统有限公司 | Brake caliper assembly for electronic parking braking system of vehicle |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 241000 No. 19, Taishan Road, Wuhu economic and Technological Development Zone, Anhui, China Patentee after: WUHU BOTELI AUTOMOBILE SAFETY SYSTEM CO., LTD. Address before: 241000 No. 19, Taishan Road, Wuhu economic and Technological Development Zone, Anhui, China Patentee before: Wuhu Bethel Automotive Secure Systems Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20090916 |