CN210454781U - Elastic retainer ring end cover mounting structure of brake system pedal simulator - Google Patents

Abstract

The utility model relates to a circlip end cover mounting structure of braking system footboard simulator, including simulator body and end cover, the open end of end cover insert in the mounting hole of simulator body, the lateral wall of end cover on lie in the middle part of the inside part of simulator body and open and have round circlip holding tank, it has the circlip restriction groove to open on the corresponding mounting hole inner wall, circlip restriction groove and circlip holding tank between install circlip. The utility model discloses reach and bear sealed effect, whole assembling process is simple and convenient, but greatly reduced cost.

Description

Elastic retainer ring end cover mounting structure of brake system pedal simulator

Technical Field

The utility model relates to a braking system footboard simulator field especially relates to a circlip end cover mounting structure of braking system footboard simulator.

Background

In general, an active brake system is a brake system in which, when a driver presses a brake pedal downward with his/her foot, an Electronic Control Unit (ECU) detects this state, drives a hydraulic pressure generating unit, and supplies hydraulic pressure to a master cylinder, thus transmitting brake hydraulic pressure to a wheel cylinder of each wheel, thereby generating braking force. In this active hydraulic pressure control booster, a pedal displacement sensor detects displacement of the pedal in a normal braking state when the driver presses the brake pedal downward with his/her foot. The ECU operates the hydraulic control unit and controls the hydraulic fluid stored in the hydraulic fluid reservoir to be supplied to the pressurizing chamber of the master cylinder, thereby creating pressure in the master cylinder. The pressure formed in the master cylinder presses the piston of the master cylinder, thereby generating the brake hydraulic pressure. The brake hydraulic pressure is transmitted to the wheel cylinder, thereby generating braking force.

The pedal simulator is used for an active braking system to provide reaction force for a brake pedal, an end cover of the pedal simulator is an important part, most of the existing end covers are connected with a main body in a threaded connection mode and need to rotate during installation, so that the integration function of the end cover is not high, the number of parts of the whole braking system is increased, and the manufacturing cost is also increased.

Disclosure of Invention

The utility model aims to solve the technical problem that a circlip end cover mounting structure of braking system footboard simulator is provided reaches and bears sealed effect, and whole assembling process is simple and convenient, but greatly reduced cost.

The utility model provides a technical scheme that its technical problem adopted is: the utility model provides a circlip end cover mounting structure of braking system footboard simulator, includes simulator body and end cover, the open end of end cover insert in the mounting hole of simulator body, the lateral wall of end cover on lie in the middle part of the inside part of simulator body and open and have round circlip holding tank, it has circlip restriction groove to open on the corresponding mounting hole inner wall, circlip restriction groove and circlip holding tank between install circlip.

Furthermore, a circle of sealing ring mounting groove is formed in the outer side wall of the opening end of the end cover.

Furthermore, a limiting inclined plane is arranged between the sealing ring mounting groove and the elastic check ring accommodating groove, and a limiting conical surface matched with the limiting inclined plane is arranged on the inner wall of the corresponding mounting hole.

Furthermore, the side wall of the elastic retainer ring accommodating groove, which faces the opening end of the end cover, is a tensioning inclined surface.

Preferably, a guide shaft fixing seat is arranged in the center of the closed end of the end cover, and a guide shaft mounting hole is formed in the end of the guide shaft fixing seat.

Preferably, a rubber pad mounting groove is formed in the joint position of the root of the guide shaft fixing seat and the end cover, and a rubber pad is mounted in the rubber pad mounting groove.

Furthermore, an assembly guide inclined plane is arranged on the inner side wall of the opening end of the mounting hole in the simulator body.

Has the advantages that: the utility model relates to a circlip end cover mounting structure of braking system footboard simulator, simple structure is reasonable, through setting up the circlip slot, links together end cover and body cooperation under circlip's effect, reaches and bears sealed effect, and whole assembling process is simple and convenient, but greatly reduced cost.

Drawings

Fig. 1 is a schematic diagram of the simulator installation of the present invention.

Fig. 2 is a schematic structural diagram of the end cap of the present invention.

Fig. 3 is a schematic view of the mounting hole of the simulator body according to the present invention.

The figure is as follows: 1. the simulator comprises a simulator body, 2 parts of an end cover, 3 parts of a rubber pad, 4 parts of a spring seat, 5 parts of a heavy-load spring, 6 parts of an elastic retainer ring; 7. a seal ring; 8. a leather cup; 9. a cushion rubber; 10. a piston; 11. a primary spring seat; 12. a guide shaft; 13. a light-load spring; 1a, a rubber pad mounting groove; 1b, a simulator retainer ring accommodating groove; 1c, a limiting conical surface; 2a, a rubber pad mounting groove; 2b, an elastic check ring accommodating groove; 2h, installing a sealing ring installation groove; 2f, a guide shaft fixing seat; 2i, a limiting inclined plane; 2j, a tensioning bevel; 2g, a guide shaft mounting hole.

Detailed Description

The present invention will be further described with reference to the following specific examples. It should be understood that these examples are for illustrative purposes only and are not intended to limit the scope of the present invention. Furthermore, it should be understood that various changes and modifications of the present invention may be made by those skilled in the art after reading the teachings of the present invention, and these equivalents also fall within the scope of the appended claims.

As shown in fig. 1-3, the utility model discloses an embodiment relates to a circlip end cover mounting structure of braking system footboard simulator, including simulator body 1 and end cover 2, the open end of end cover 2 insert in the mounting hole of simulator body 1, the lateral wall of end cover 2 on lie in the middle part of the inside part of simulator body 1 and open and have round circlip holding tank 2b, it has circlip restriction groove 1b to open on the corresponding mounting hole inner wall, circlip restriction groove 1b and circlip holding tank 2b between install circlip 6.

The simulator retainer receiving groove 2b can be completely received when the circlip 6 is compressed.

And the outer side wall of the opening end of the end cover 2 is provided with an end sealing ring mounting groove 2 h.

The sealing ring mounting groove 2h and the elastic retainer ring accommodating groove 2b are provided with a limiting inclined surface 2i therebetween, the inner wall of the corresponding mounting hole is provided with a limiting conical surface 1c matched with the limiting inclined surface 2i, and the limiting inclined surface 2i is acted by the limiting conical surface 1c during mounting to limit the moving range of the simulator end cover 2.

One side lateral wall of circlip holding groove 2b towards the end cover 2 open end be tensioning inclined plane 2j, receive internal pressure effect when simulator circlip end cover 2, expandable circlip 6.

The inside of the blind end of end cover 2 be provided with guiding axle fixing base 2f between two parties, the tip of guiding axle fixing base 2f be provided with guiding axle mounting hole 2 g.

The root of guiding axle fixing base 2f and the position of end cover 2 handing-over be provided with rubber pad mounting groove 2a, install rubber pad 3 in the rubber pad mounting groove 2 a.

An assembly guide inclined plane 1a is arranged on the inner side wall of the opening end of the mounting hole on the simulator body 1.

The simulator is characterized in that a simulator body 1 is used as a main body part, an end cover 2 is fixed in the simulator body 1 under the action of an elastic check ring 4 through an elastic check ring accommodating groove 2b and an elastic check ring limiting groove 1b, and a limiting inclined surface 2i and a limiting inclined surface 1c are used for limiting the moving space of the simulator elastic check ring end cover 2 in the axial direction; the sealing ring mounting groove 2h bears a sealing ring 7, and the sealing ring mounting groove and the sealing ring matching surface in the mounting hole act together to achieve a sealing effect; the heavy-load spring 5 is arranged between the spring seat 4 and the first-stage spring seat 11, the spring seat 4 and the first-stage spring seat 11 are connected in series through the guide shaft 12, the light-load spring 13 is arranged in an annular space built by the spring seat 4 and the guide shaft 12, and one end of the guide shaft 12 is riveted with the guide shaft mounting hole 2 g; the leather cup 8 is arranged in a leather cup mounting groove on the simulator body 1; the buffer rubber 9 is positioned in a piston 10, and the piston 10 is positioned in a piston receiving chamber in the simulator body 1; the rubber pad 3 is fixed in the rubber pad mounting groove 2a, and initial pedal feeling during light load can be improved.

The working principle is as follows: after the piston 10 is acted by the output pressure of the brake master cylinder, the light-load spring 13 is compressed in the light-load stage, and the spring seat 4 is contacted with the rubber pad 3, so that the impact caused by rigid contact is improved, and the pedal feel is improved; in the heavy-load stage, the heavy-load spring 5 is compressed, the piston 10 moves greatly, and in order to improve the impact caused by rigid contact, the buffer rubber 9 is in contact with the guide shaft 12, so that the service life of the system is prolonged.

At whole working phase, simulator circlip end cover 2 bears all pressures, and external pressure is born through circlip 4 and the circlip restriction groove 1b combined action of circlip holding tank 2b position to end cover 2, and sealing washer 7 is born to sealing washer slot 2h, reaches sealed effect with the sealing washer fitting surface combined action.

The utility model has the advantages of simple and reasonable structure, through setting up the circlip slot, link together end cover and body cooperation under circlip's effect, reach and bear sealed effect, whole assembling process is simple and convenient, but greatly reduced cost.

Claims (7)

1. The utility model provides a circlip end cover mounting structure of braking system footboard simulator, includes simulator body (1) and end cover (2), the open end of end cover (2) insert in the mounting hole of simulator body (1), its characterized in that, the lateral wall of end cover (2) on lie in the middle part of the inside part of simulator body (1) and open round circlip holding tank (2b), it has circlip restriction groove (1b) to open on the corresponding mounting hole inner wall, circlip restriction groove (1b) and circlip holding tank (2b) between install circlip (6).

2. A circlip end cap mounting structure of a brake system pedal simulator according to claim 1, characterized in that: and the outer side wall of the opening end of the end cover (2) is provided with an end sealing ring mounting groove (2 h).

3. A circlip end cap mounting structure of a brake system pedal simulator according to claim 2, characterized in that: and a limiting inclined plane (2i) is arranged between the sealing ring mounting groove (2h) and the elastic check ring accommodating groove (2b), and a limiting conical surface (1c) matched with the limiting inclined plane (2i) is arranged on the inner wall of the corresponding mounting hole.

4. A circlip end cap mounting structure of a brake system pedal simulator according to claim 1 or 3, characterized in that: the elastic retainer ring accommodating groove (2b) is a tensioning inclined surface (2j) facing to the side wall of the opening end of the end cover (2).

5. A circlip end cap mounting structure of a brake system pedal simulator according to claim 1, characterized in that: the inside of the blind end of end cover (2) be provided with guiding axle fixing base (2f) between two parties, the tip of guiding axle fixing base (2f) be provided with guiding axle mounting hole (2 g).

6. The circlip end cap mounting structure of a brake system pedal simulator according to claim 5, characterized in that: the root of guiding axle fixing base (2f) and the position of end cover (2) handing-over be provided with rubber pad mounting groove (2a), install rubber pad (3) in rubber pad mounting groove (2 a).

7. A circlip end cap mounting structure of a brake system pedal simulator according to claim 1, characterized in that: an assembly guide inclined plane (1a) is arranged on the inner side wall of the opening end of the mounting hole in the simulator body (1).

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