CN211617663U - Hydraulic booster with brake master cylinder assembly - Google Patents
Hydraulic booster with brake master cylinder assembly Download PDFInfo
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- CN211617663U CN211617663U CN201922112932.6U CN201922112932U CN211617663U CN 211617663 U CN211617663 U CN 211617663U CN 201922112932 U CN201922112932 U CN 201922112932U CN 211617663 U CN211617663 U CN 211617663U
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- master cylinder
- brake master
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Abstract
The utility model provides a hydraulic booster with a brake master cylinder assembly, which comprises a brake master cylinder and a hydraulic booster, wherein the hydraulic booster comprises a pump body provided with an oil channel, and the pump body is connected with a pump cover provided with a groove and provided with a sealing element through a bolt to form a boosting cavity; the pump body is provided with an oil inlet and two oil outlets, the hole at the end part of the power-assisted piston is a third-stage stepped hole, the first-stage stepped hole is limited by an output push rod, the second-stage stepped hole is limited by an output push rod retainer ring and guided by an output push rod, and the third-stage stepped hole is limited by a power-assisted piston return spring as a spring seat. Use a hydraulic pressure booster area brake master cylinder assembly, the oil inlet of the booster pump body passes the slide valve hole and communicates with each other with the plunger hole, the plunger hole directly link up with the energy storage ware oil duct directly, save the processing in fabrication hole and the stifled use of technology, promote machining efficiency, reduce manufacturing cost.
Description
Technical Field
The utility model relates to a booster area brake master cylinder assembly specifically is a hydraulic pressure booster area brake master cylinder assembly.
Background
The hydraulic power-assisted brake is mainly applied to vehicles of more than 3.5 tons and is used for solving the problems of insufficient vacuum power-assisted brake force, poor rough controllability of air brake, complex arrangement, high cost and the like. At present, domestic hydraulic power-assisted braking is mainly applied to a long-head vehicle, can meet the control performance requirements of different customers, can also meet the space arrangement requirements, and reduces the cost. However, with the development of a new energy market, the requirements for light weight and compactness of vehicles are higher and higher, and particularly for flat-head vehicles, the conventional hydraulic booster with a brake master cylinder assembly cannot meet the requirement for spatial arrangement in the axial dimension and is difficult to arrange in a cab; meanwhile, the domestic host machine factory also develops large-tonnage hydraulic brake vehicles in succession, and the conventional hydraulic booster with a brake master cylinder cannot meet the displacement requirement of a large-specification hydraulic brake, so that the use of the hydraulic booster with the brake master cylinder is limited.
Disclosure of Invention
The utility model aims at providing a hydraulic pressure booster area brake master cylinder assembly, compact structure, light in weight can use on large-tonnage hydraulic brake motorcycle type.
In order to solve the technical problem, the technical scheme of the utility model as follows: the utility model provides a hydraulic pressure booster takes brake master cylinder assembly, includes brake master cylinder, its characterized in that: the hydraulic booster comprises a pump body provided with an oil channel, and the pump body is connected with a pump cover provided with a groove and a sealing element through a bolt to form a boosting cavity; the pump body is provided with an oil inlet and two oil outlets, the oil inlet and the oil outlets are communicated with a slide valve hole in the pump body, the pump body is provided with an energy accumulator, an oil passage of the energy accumulator is communicated with the plunger hole, and the oil inlet of the pump body penetrates through the slide valve hole to be communicated with the plunger hole; a booster piston is arranged in the pump body; an output push rod is arranged in a hole at one end of the power-assisted piston, an annular groove is formed at one end of the output push rod, and a check ring is arranged on the annular groove; the hole of helping hand piston tip is tertiary shoulder hole, and first order shoulder hole is spacing for the output push rod, and the second level shoulder hole is spacing for the output push rod retaining ring to the direction of locating the output push rod, and the tertiary shoulder hole is spacing for helping hand piston return spring as the spring holder.
The improvement of the technical scheme is as follows: the retaining ring is a thickened retaining ring in interference fit with an inner hole of the power-assisted piston.
The technical scheme is further improved as follows: the boosting piston returns through a return spring at the end part; the return spring is a reducing spring with one large end and one small end, one end of the small end is limited through a booster piston hole, and one end of the large end is limited through a check ring on a booster pump body; and a piston of the brake master cylinder penetrates through the return spring and extends into the booster to be contacted with the output push rod, and a pump body of the brake master cylinder is connected with a pump body of the booster through a bolt.
The technical scheme is further improved: the booster pump body pump cover adopts the forging blank, adopts QPQ to handle after booster pump body pump cover processing is accomplished.
Has the advantages that:
when the hydraulic booster with the brake master cylinder assembly is used, the oil inlet of the pump body of the booster is communicated with the plunger hole through the slide valve hole, and the plunger hole is directly communicated with the oil duct of the energy accumulator, so that the processing of a process hole and the use of a process plug are omitted, the processing efficiency is improved, and the manufacturing cost is reduced; the thickened retainer ring is in interference fit with the power-assisted piston with the inner hole as the step hole, the power-assisted piston and the output push rod do not move relatively, the output push rod cannot fall off in the moving process, and meanwhile, the thickened retainer ring can guide the output push rod; the step in the power piston hole is used as a spring seat to limit the position of the return spring, so that the use of the spring seat can be omitted, the assembly efficiency is improved, the manufacturing cost is reduced, and meanwhile, the installation space of the return spring of the power piston can be saved; the big end of the reducing spring can be limited by a retainer ring arranged on the pump body, so that the use of a spring seat is reduced, the utilization rate of the inner hole space of the spring is increased, a main cylinder piston with a larger cylinder diameter is allowed to pass through, and the displacement requirement of braking of a vehicle with a larger tonnage can be met; reducing the axial dimension of the assembly also reduces the weight of the assembly. The utility model discloses booster pump body and pump cover adopt non quenching and tempering steel forging blank, and material intensity increases, is favorable to the optimization of structure, further reduces assembly length, reduces assembly weight; the pump body pump surface lid adopts QPQ to handle, can improve corrosion resistance, improves the life-span of assembly simultaneously, reduces environmental pollution.
Drawings
Fig. 1 is a schematic structural diagram of the present invention;
fig. 2 is a view of the structure of the oil passage of the present invention;
FIG. 3 is a schematic structural diagram of a preferred embodiment of the present invention;
fig. 4 is a schematic structural diagram of a preferred scheme of the oil passage of the utility model;
wherein: A. the hydraulic booster comprises a hydraulic booster body, a brake main cylinder, a pump body, a bolt, a pump cover, a groove, a sealing piece, an energy accumulator, a sealing piece oil passage, an energy-assisting piston, a sealing piece output push rod, an output push rod, a sealing piece ring groove, a sealing piece ring, a sealing piece 8, a spring seat, a return spring, a spring seat 10, a spring seat, a check ring 11, a check ring 12, a bolt, a piston.
Detailed Description
As shown in fig. 1 and 2, a hydraulic booster with a brake master cylinder assembly comprises a hydraulic booster a and a brake master cylinder B, wherein the hydraulic booster a comprises a pump body 1 provided with an oil passage, and the pump body 1 is connected with a pump cover 3 provided with a groove 3.1 and a sealing element 3.2 through a bolt 2 to form a boosting cavity; the pump body 1 is provided with an oil inlet 1.1 and two oil outlets (1.2, 1.3), the oil inlet 1.1 and the oil outlets (1.2, 1.3) are communicated with a slide valve hole 1.4 in the pump body 1, the pump body 1 is provided with an energy accumulator 4, an oil passage 4.1 of the energy accumulator is communicated with a plunger hole 1.5 of the pump body 1, and the oil inlet 1.1 of the pump body 1 is communicated with the plunger hole 1.5 through the slide valve hole 1.4; a booster piston 5 is arranged in the pump body 1; an output push rod 6 is arranged in a hole 5.1 at one end of the power-assisted piston 5, one end of the output push rod 6 is provided with a ring groove 6.1, a check ring 7 is arranged on the ring groove, and the check ring 7 is a thickened check ring in interference fit with a power-assisted piston inner hole 5.2; the power-assisted piston 5 is returned 9 through a return spring at the end part; the return spring 9 is a reducing spring with a big end and a small end, one end of the small end 9.1 is limited by the booster piston hole 5.3, and one end of the big end 9.2 is limited by the retainer ring 11 on the booster pump body 1. And a piston of the brake master cylinder B penetrates through a return spring 9 and extends into the booster A to be contacted with the output push rod 6, and the brake master cylinder pump body 02 is connected with the booster pump body 1 through a bolt 12.
Claims (4)
1. The utility model provides a hydraulic pressure booster takes brake master cylinder assembly, includes brake master cylinder, its characterized in that: the hydraulic booster comprises a pump body provided with an oil channel, and the pump body is connected with a pump cover provided with a groove and a sealing element through a bolt to form a boosting cavity; the pump body is provided with an oil inlet and two oil outlets, the oil inlet and the oil outlets are communicated with a slide valve hole in the pump body, the pump body is provided with an energy accumulator, an oil passage of the energy accumulator is communicated with the plunger hole, and the oil inlet of the pump body penetrates through the slide valve hole to be communicated with the plunger hole; a booster piston is arranged in the pump body; an output push rod is arranged in a hole at one end of the power-assisted piston, an annular groove is formed at one end of the output push rod, and a check ring is arranged on the annular groove; the hole of helping hand piston tip is tertiary shoulder hole, and first order shoulder hole is spacing for the output push rod, and the second level shoulder hole is spacing for the output push rod retaining ring to for the direction of output push rod, the tertiary shoulder hole is spacing for helping hand piston return spring as the spring holder.
2. The hydraulic booster band brake master cylinder assembly of claim 1, wherein: the retaining ring is a thickened retaining ring, and the retaining ring and the inner hole of the power-assisted piston are in interference fit.
3. A hydraulic booster band brake master cylinder assembly as claimed in claim 1 or 2, wherein: the boosting piston returns through a return spring at the end part; the return spring is a reducing spring with one large end and one small end, one end of the small end is limited through a booster piston hole, and one end of the large end is limited through a check ring on a booster pump body; and a piston of the brake master cylinder penetrates through the return spring and extends into the booster to be contacted with the output push rod, and a pump body of the brake master cylinder is connected with a pump body of the booster through a bolt.
4. The hydraulic booster band brake master cylinder assembly of claim 1, wherein: the pump body and pump cover of the hydraulic booster adopts a forging blank, and the booster pump body and pump cover is processed by QPQ.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922112932.6U CN211617663U (en) | 2019-12-02 | 2019-12-02 | Hydraulic booster with brake master cylinder assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922112932.6U CN211617663U (en) | 2019-12-02 | 2019-12-02 | Hydraulic booster with brake master cylinder assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211617663U true CN211617663U (en) | 2020-10-02 |
Family
ID=72627317
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922112932.6U Active CN211617663U (en) | 2019-12-02 | 2019-12-02 | Hydraulic booster with brake master cylinder assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211617663U (en) |
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2019
- 2019-12-02 CN CN201922112932.6U patent/CN211617663U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: 442000 No. 26, Longmen Avenue, Longmen Industrial Park, Shiyan Economic Development Zone, Hubei Province Patentee after: Hubei Shengda Power Technology Co.,Ltd. Address before: 442013 No.26 Longmen Avenue, Longmen Industrial Park, Shiyan Economic Development Zone, Hubei Province Patentee before: Dongfeng (Shiyan) Automobile Hydraulic Power Co.,Ltd. |