CN213511809U

CN213511809U - Double-piston CBS caliper for electric vehicle

Info

Publication number: CN213511809U
Application number: CN202022052790.1U
Authority: CN
Inventors: 罗新刚
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-09-18
Filing date: 2020-09-18
Publication date: 2021-06-22
Anticipated expiration: 2030-09-18

Abstract

The utility model discloses a double-piston CBS caliper for electric vehicle, including brake caliper, brake part and linkage part, brake caliper includes through fastener complex calliper main part and end cover, linkage part includes the linkage cylinder piston of laminating with the brake block, the linkage shoe plate cooperates with the brake block through shoe plate guide pin with the linkage shoe plate spring of its inboard, brake part includes the preceding brake piston of laminating with the brake block, preceding brake shoe cooperates with the brake block through shoe plate guide pin with the preceding brake shoe plate spring of its inboard; the caliper has the characteristics of light weight, light structure, small volume and low cost, particularly two pairs of brake shoes which work independently do not influence each other even if the use frequency of front and back brakes is different, so that the uneven wear of the shoes is caused, and the mounting bracket is kept unchanged, so that the mould opening is not needed again, the development period is shortened, and the development cost is reduced.

Description

Double-piston CBS caliper for electric vehicle

Technical Field

The utility model relates to a calliper, in particular to double-piston CBS calliper for electric motor car.

Background

The use of combined front and rear braking systems (CBS systems) has now developed as a trend for motorcycles, including electric motorcycles, in view of safety regulations enforcement requirements. Although there are many kinds of CBS hydraulic brake calipers, it is still impossible to cover all vehicle models in which a CBS system is installed due to the limitation of the structural form thereof. The brake calipers of the front and rear Combined Brake (CBS) system which are commonly used at present all adopt a three-piston structure, only one pair of brake shoes are assembled, the brake calipers are large in size, and are difficult to mount or even impossible to mount for a plurality of vehicles using rims with small specifications, so that the universal application of the CBS system on the vehicles is limited. Moreover, most of vehicle types originally used mainly comprise double-piston brake calipers, and vehicle types which cannot be provided with CBS brake calipers with three-piston structures are not said to be the same, and even the vehicle types which can be provided with CBS brake calipers with three-piston structures are reluctant, the vehicle types have larger volume and heavy weight, so that the weight of the whole vehicle is increased, the appearance and the shape of the vehicle are changed, and the harmony of the whole structural design of the original vehicle is also influenced.

From the application condition of the existing three-piston CBS calipers, the structural form of the three-piston CBS calipers is completely different from that of the calipers using a non-CBS form, so that the mounting supports are required to be opened again without exception, the development period of products is prolonged, and the development cost is increased.

Disclosure of Invention

The utility model provides a two piston CBS callipers for electric motor car are used for overcoming the defect that three piston CBS hydraulic braking calliper's range of application limits among the prior art.

In order to solve the technical problem, the utility model provides a following technical scheme:

the utility model discloses a double-piston CBS calliper for electric motor car, including brake caliper, brake part and linkage part, brake caliper includes calliper main part and end cover, and the two mutually supports the assembly, be equipped with first inlet port and second inlet port in the calliper main part, the linkage part is including being located the inside linkage jar piston of calliper main part, the one end of linkage jar piston and the inner wall laminating of calliper main part, the other end and the laminating of brake block, the linkage hoof piece and the linkage hoof piece spring of its inboard pass through the hoof piece pilot pin with the brake block cooperation, the brake part is including being located the inside preceding brake piston of calliper main part, the one end of preceding brake piston and the inner wall laminating of calliper main part, the other end and the laminating of brake block, the preceding brake shoe piece and the preceding brake shoe spring of its inboard pass through the hoof piece pilot pin with the brake block cooperation.

Furthermore, a linkage cylinder sealing ring and a linkage cylinder dustproof ring are respectively arranged in a cavity of the linkage cylinder piston; and a front brake sealing ring and a front brake dustproof ring are respectively arranged in the cavity of the front brake piston.

Furthermore, the first oil inlet hole is connected with a branch rear brake pipeline, and a linkage cylinder piston pushes a linkage brake shoe to work; the second oil inlet hole is connected with a front brake pipeline, and a front brake piston pushes a front brake shoe to work, so that the braking is realized respectively and independently.

Furthermore, brake caliper adopts split type structure, and calliper main part and end cover tighten up the link up through the fastener, and the upper end of its cooperation department is equipped with the fender.

Further, the mounting bracket is installed with the calliper main part through the fastener cooperation, and goes up the sliding shaft subassembly and all assemble on the mounting bracket with the lower sliding shaft subassembly.

Furthermore, the upper sliding shaft assembly comprises an upper sliding shaft and an upper sliding shaft rubber sleeve sleeved on the outer wall of the upper sliding shaft; the lower sliding shaft and a lower sliding shaft rubber sleeve sleeved on the outer wall of the lower sliding shaft form a lower sliding shaft assembly.

The utility model discloses the beneficial effect who reaches is: the caliper has the characteristics of light weight, light structure, small volume and low cost, and particularly, two pairs of brake shoes which work independently do not influence each other even if the use frequency of front and back brakes is different to cause uneven wear of the shoes.

Meanwhile, the mounting bracket is kept unchanged, mold opening is not needed again, the development period is shortened, and the development cost is reduced. Because calliper installing support is unchangeable, uses the utility model discloses the outward appearance influence to whole car is not big around, especially to the line direction of walking of brake hose, angle influence very little.

Additionally, the utility model discloses change integral brake caliper into components of a whole that can function independently structure, be used for bearing the tensile material of keeping silent with a plurality of screw with integral caliper and replace, effectively reduced the overall height of calliper, avoided the interference of calliper with the rim, make the vehicle of the three piston CBS hydraulic braking calliper of unable installation, also can realize the application of CBS system smoothly. To the vehicle of the three-cylinder CBS system that has been using, if needs, also can change to use the utility model discloses, can say, the utility model discloses do not have any obstacle in CBS system application.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention. In the drawings:

fig. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic view of the exterior of the present invention;

fig. 3 is a schematic structural view of the upper sliding shaft sleeve of the present invention;

FIG. 4 is a schematic structural view of the front brake assembly of the present invention;

fig. 5 is a schematic top view of the present invention.

1. A caliper body; 2. a linkage cylinder piston; 3. a linkage cylinder seal ring; 4. a linkage cylinder dustproof ring; 5. a fender; 6. a linkage shoe spring; 7. a linkage shoe; 8. an end cap; 9. mounting a bracket; 10. an air releasing nozzle; 11. a dustproof cap of the air release nozzle; 12. a front brake piston; 13. a front brake seal ring; 14. a front braking dust ring; 15. a shoe guide pin; 16. a front brake shoe spring; 17. a front brake shoe; 18. a first oil inlet hole; 19. a second oil inlet hole; 20. a lower sliding shaft; 21. a lower sliding shaft rubber sleeve; 22. an upper sliding shaft rubber sleeve; 23. an upper sliding shaft.

Detailed Description

The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are presented herein only to illustrate and explain the present invention, and not to limit the present invention.

Example 1

As shown in fig. 1 and 4, a dual-piston CBS caliper for an electric vehicle includes a brake caliper, a brake part, and a linkage part;

the brake caliper comprises a caliper main body 1 and an end cover 8 which are matched and assembled with each other;

a first oil inlet hole 18 and a second oil inlet hole 19 are formed in the caliper main body 1;

the linkage part comprises a linkage cylinder piston 2 positioned in the caliper main body 1, one end of the linkage cylinder piston 2 is attached to the inner wall of the caliper main body 1, the other end of the linkage cylinder piston is attached to a brake pad, and a linkage shoe 7 and a linkage shoe spring 6 on the inner side of the linkage shoe are matched with the brake pad through a shoe guide pin 15;

the brake part comprises a front brake piston 12 located inside a caliper main body 1, one end of the front brake piston 12 is attached to the inner wall of the caliper main body 1, the other end of the front brake piston is attached to a brake pad, and a front brake shoe 17 and a front brake shoe spring 16 on the inner side of the front brake shoe are matched with the brake pad through a shoe guide pin 15.

A linkage cylinder sealing ring 3 and a linkage cylinder dustproof ring 4 are respectively arranged in the cavity of the linkage cylinder piston 2; a front brake sealing ring 13 and a front brake dust ring 14 are respectively arranged in the cavity of the front brake piston 12; brake caliper adopts split type structure, and calliper main part 1 and end cover 8 tighten up the link up through the fastener, and the upper end of its cooperation department is equipped with fender 5.

As shown in fig. 2, the utility model discloses change integral brake caliper into components of a whole that can function independently structure, be used for bearing the tensile material of keeping silent with three socket head cap screw with integral calliper and replace, the material that calliper main part 1 is in three socket head cap screw upper portion is very limited, compares three piston CBS hydraulic braking calliper, has just effectively reduced the overall height of calliper to the greatest extent as far as, makes the vehicle of unable three piston CBS hydraulic braking calliper of installation, can install calliper smoothly to the application of CBS system has been realized.

As shown in fig. 1 and 3, the upper sliding shaft 23 and the upper sliding shaft rubber sleeve 22 sleeved on the outer wall thereof form an upper sliding shaft assembly;

the lower sliding shaft 20 and a lower sliding shaft rubber sleeve 21 sleeved on the outer wall of the lower sliding shaft form a lower sliding shaft component;

the mounting bracket 9 is installed in a matching way with the caliper main body 1 through a fastener, and the upper sliding shaft assembly and the lower sliding shaft assembly are both assembled on the mounting bracket 9.

As shown in fig. 5, the first oil inlet hole 18 is connected to a rear brake branch line, and when hydraulic pressure is input, the interlocking brake shoe 7 is pushed by the interlocking cylinder piston 2 to operate; the second oil inlet hole 19 is connected to a front brake pipe, and when hydraulic pressure is input, the front brake piston 12 pushes the front brake shoe 17 to operate, thereby separately implementing braking.

The linkage shoe 7 and the front brake shoe 17 are two different parts, when front brake is needed, front hydraulic pressure is applied, the front brake piston 12 pushes the front brake shoe 17 to work, and the linkage shoe 7 does not work, and vice versa. Only when the front and rear brake lines apply hydraulic pressure together, the front brake shoe 17 and the interlocking brake shoe 7 work together. No matter how different the use frequency of the front brake and the rear brake is, the difference of the abrasion degrees of the shoe plates is large, and the two pipes are independent of each other and are not influenced mutually.

For the vehicle model of the three-cylinder CBS system which is already used, the caliper can be used instead if needed, and only the mounting bracket before the CBS is used again can be used. It can be said that the present caliper does not present any obstacle in the application of CBS systems.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A double-piston CBS caliper for an electric vehicle is characterized by comprising a brake caliper, a brake part and a linkage part;

the brake caliper comprises a caliper main body and an end cover which are matched and assembled with each other;

a first oil inlet hole and a second oil inlet hole are formed in the caliper main body;

the linkage part comprises a linkage cylinder piston positioned in the caliper main body, one end of the linkage cylinder piston is attached to the inner wall of the caliper main body, the other end of the linkage cylinder piston is attached to the brake pad, and the linkage shoe and a linkage shoe spring on the inner side of the linkage shoe are matched with the brake pad through a shoe guide pin;

the brake part is including being located the inside preceding brake piston of calliper main part, the one end of preceding brake piston is laminated with the inner wall of calliper main part, and the other end is laminated with the brake block, preceding brake shoe and the preceding brake shoe spring of its inboard pass through shoe guide pin with the brake block cooperation.

2. The dual-piston CBS caliper for the electric vehicle as claimed in claim 1, wherein a linkage cylinder sealing ring and a linkage cylinder dust ring are respectively disposed in the cavity of the linkage cylinder piston; and a front brake sealing ring and a front brake dustproof ring are respectively arranged in the cavity of the front brake piston.

3. The dual-piston CBS caliper for the electric vehicle as claimed in claim 1, wherein the brake caliper is a split structure, the caliper body and the end cap are fastened and connected by a fastening member, and a mudguard is disposed at the upper end of the fitting portion.

4. The dual-piston CBS caliper for electric vehicles according to claim 1, wherein the caliper body is installed by a fastener in cooperation with a mounting bracket, and the upper sliding shaft assembly and the lower sliding shaft assembly are both assembled on the mounting bracket.

5. The dual-piston CBS caliper for electric vehicles according to claim 4, wherein the upper sliding shaft assembly comprises an upper sliding shaft and an upper sliding shaft rubber sleeve sleeved on the outer wall thereof; the lower sliding shaft and a lower sliding shaft rubber sleeve sleeved on the outer wall of the lower sliding shaft form a lower sliding shaft assembly.

6. The dual-piston CBS caliper for the electric vehicle as claimed in claim 1, wherein the first oil inlet hole is connected to a rear brake branch pipeline, and a linkage cylinder piston pushes a linkage brake shoe to work; the second oil inlet hole is connected with a front brake pipeline, and a front brake piston pushes a front brake shoe to work, so that the braking is realized respectively and independently.