Double-piston brake caliper

Abstract

The utility model discloses a pair of double-piston type brake calipers. The double-piston type brake calipers comprise a shell, a main brake assembly and an auxiliary brake assembly. The auxiliary brake assembly comprises auxiliary cavities symmetrically formed in the shell and an auxiliary brake assembly arranged in the shell. The auxiliary piston is arranged in the auxiliary cavity in a sliding mode, a second connecting rod is arranged on the auxiliary piston, the second connecting rod penetrates through the shell and extends out of the shell, and an auxiliary friction plate is arranged at the end, extending out of the shell, of the second connecting rod; and the auxiliary flow channel is arranged on the shell and is communicated with the auxiliary cavity. By means of the auxiliary brake assembly, when a vehicle needs to be braked, braking is achieved through the main brake assembly, when the main brake assembly fails in braking, hydraulic oil is injected into the auxiliary cavity through the auxiliary flow channel, the auxiliary piston is pushed to slide, the auxiliary piston drives the auxiliary friction plate to make contact with the brake disc, and the auxiliary friction plate is driven to make contact with the brake disc. Emergency auxiliary braking is achieved, the double braking assemblies are adopted, and the safety of vehicle running is greatly improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to vehicle brake technical field, especially involve double piston type brake caliper. BACKGROUND

[0002] Brake caliper is the device that realizes wheel brake deceleration with brake disc in brake system, is widely used in various motor vehicles and non-motor vehicles.

[0003] The existing brake caliper is difficult to complete emergency braking when the hydraulic oil circuit has problems, and the safety of vehicle driving is general, and the auxiliary emergency braking structure is lacked to achieve the emergency braking effect. UTILITY MODEL CONTENTS

[0004] The utility model provides a double piston type brake caliper in view of the prior art problem, and proposes the following technical scheme:

[0005] The utility model provides a double piston type brake caliper, comprising:

[0006] Shell, main brake assembly and auxiliary brake assembly;

[0007] The auxiliary brake assembly comprises:

[0008] Auxiliary cavity, the auxiliary cavity is symmetrically set up in the shell interior;

[0009] Auxiliary piston, the auxiliary piston is slidably arranged in the auxiliary cavity, a connecting rod two is arranged on the auxiliary piston, the connecting rod two penetrates the shell and extends to the outside of the shell, and the end portion of the connecting rod two extending to the outside of the shell is provided with an auxiliary friction plate;

[0010] Auxiliary flow channel, the auxiliary flow channel is arranged on the shell and is communicated with the auxiliary cavity.

[0011] As the preferred technical scheme, the auxiliary brake assembly further comprises a spring two, and the spring two is arranged between the auxiliary piston and the inner wall of the auxiliary cavity and connected with both.

[0012] As the preferred technical scheme, the main brake assembly comprises:

[0013] Main cavity, the main cavity is symmetrically set up in the shell interior;

[0014] Main piston, the main piston is slidably arranged in the main cavity, a connecting rod one is arranged on the main piston, the connecting rod one penetrates the shell and extends to the outside of the shell, and the end portion of the connecting rod one extending to the outside of the shell is provided with a main friction plate;

[0015] Main flow channel, the main flow channel is arranged on the shell and is communicated with the main cavity.

[0016] As a preferred embodiment of the above technical solution, the main brake assembly further includes a spring, which is disposed between the main piston and the inner wall of the main cavity and connects the two.

[0017] The beneficial effects of this utility model are as follows:

[0018] This invention utilizes an auxiliary braking assembly. When braking is required, the main braking assembly first initiates braking. If the main braking assembly fails, hydraulic oil is injected into the auxiliary cavity through the auxiliary flow channel, pushing the auxiliary piston to slide. The auxiliary piston then drives the auxiliary friction pads to contact the brake disc, achieving emergency auxiliary braking. The use of a dual braking assembly greatly improves vehicle safety. Furthermore, the auxiliary braking assembly can work simultaneously with the main braking assembly, increasing the braking contact area with the brake disc during braking and further enhancing the braking effect. Attached Figure Description

[0019] Figure 1 The diagram shown is a structural schematic of the dual-piston brake caliper in the embodiment;

[0020] Reference numerals: 10, housing; 21, main cavity; 22, main piston; 23, connecting rod one; 24, main friction plate; 25, spring one; 26, main flow channel; 31, auxiliary cavity; 32, auxiliary piston; 33, connecting rod two; 34, auxiliary friction plate; 35, spring two; 36, auxiliary flow channel. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below in conjunction with the embodiments.

[0022] Example

[0023] like Figure 1 As shown, Figure 1 The diagram shown is a structural schematic of the dual-piston brake caliper in the embodiment;

[0024] This device includes:

[0025] Housing 10, main brake assembly and auxiliary brake assembly;

[0026] The auxiliary braking components include:

[0027] Auxiliary cavity 31, which is symmetrically opened inside the shell 10;

[0028] An auxiliary piston 32 is slidingly arranged in the auxiliary cavity 31, and a connecting rod II 33 is arranged on the auxiliary piston 32 and penetrates through the shell 10 and extends to the outside of the shell 10, and an auxiliary friction plate 34 is arranged at the end of the connecting rod II 33 extending to the outside of the shell 10;

[0029] A spring II 35 is arranged between the auxiliary piston 32 and the inner wall of the auxiliary cavity 31 and connects the two;

[0030] An auxiliary flow channel 36 is arranged on the shell 10 and communicates with the auxiliary cavity 31.

[0031] The auxiliary cavity 31 is symmetrically arranged in the space inside the shell 10 and is used for accommodating the auxiliary piston 32, the auxiliary piston 32 slidingly arranged in the auxiliary cavity 31 generates braking force through the pressure of hydraulic oil or other working medium, the connecting rod II 33 transmits the action of the auxiliary piston 32 to the auxiliary friction plate 34, and the auxiliary flow channel 36 is used for delivering the working medium (such as hydraulic oil) to the auxiliary cavity 31 to push the auxiliary piston 32, and when stopping braking, the spring II 35 can make the auxiliary piston 32 return to the initial position to prepare for the next braking.

[0032] When the vehicle needs to be braked, the main brake assembly is first used to brake, when the main brake assembly fails to brake, the hydraulic oil is injected into the auxiliary cavity 31 through the auxiliary flow channel 36 to push the auxiliary piston 32 to slide, the auxiliary piston 32 drives the auxiliary friction plate 34 to contact the brake disc to realize emergency auxiliary braking, the double-brake assembly is adopted, the safety of vehicle driving is greatly improved, and the auxiliary brake assembly can also work simultaneously with the main brake assembly, the braking contact area between the auxiliary brake assembly and the brake disc can be increased when simultaneously braking, and the braking effect is further improved.

[0033] As shown in Figure 1 , Figure 1 The structure schematic diagram of the double-piston brake caliper in the embodiment is shown;

[0034] The main brake assembly comprises:

[0035] A main cavity 21 is symmetrically arranged in the shell 10;

[0036] A main piston 22 is slidingly arranged in the main cavity 21, and a connecting rod I 23 is arranged on the main piston 22 and penetrates through the shell 10 and extends to the outside of the shell 10, and a main friction plate 24 is arranged at the end of the connecting rod I 23 extending to the outside of the shell 10;

[0037] A main flow channel 26 is arranged on the shell 10 and communicates with the main cavity 21.

[0038] A spring 25 is arranged between the main piston 22 and the inner wall of the main cavity 21 to connect them, and the spring 25 can restore the main piston 22 to the initial position by the elastic force of the spring 25 when stopping braking.

[0039] The main cavity 21 is symmetrically arranged in the space inside the shell 10 to accommodate the main piston 22, the main piston 22 is arranged in the main cavity 21 in a sliding manner, and the main piston 22 generates a braking force by the pressure of hydraulic oil or other working medium, the connecting rod 23 transmits the action of the main piston 22 to the main friction plate 24, and the main flow channel 26 is used to deliver the working medium (such as hydraulic oil) to the main cavity 21 to push the main piston 22, and the spring 25 can restore the main piston 22 to the initial position by the elastic force of the spring 25 when stopping braking, thereby preparing for the next braking.

[0040] The above embodiments are only used to illustrate the technical solutions of the present application, and not to limit them.

Claims

1. A dual-piston brake caliper, characterized in that, include: Housing (10), main brake assembly and auxiliary brake assembly; The auxiliary braking assembly includes: An auxiliary cavity (31) is symmetrically opened inside the shell (10); An auxiliary piston (32) is slidably disposed in an auxiliary cavity (31). A connecting rod (33) is provided on the auxiliary piston (32). The connecting rod (33) passes through the housing (10) and extends to the outside of the housing (10). An auxiliary friction plate (34) is provided at the end of the connecting rod (33) extending to the outside of the housing (10). An auxiliary flow channel (36) is provided on the housing (10) and communicates with the auxiliary cavity (31).

2. The dual-piston brake caliper according to claim 1, characterized in that, The auxiliary braking assembly also includes a second spring (35), which is disposed between the auxiliary piston (32) and the inner wall of the auxiliary cavity (31) and connects the two.

3. The dual-piston brake caliper according to claim 1, characterized in that, The main braking assembly includes: The main cavity (21) is symmetrically opened inside the shell (10); The main piston (22) is slidably disposed in the main cavity (21). A connecting rod (23) is provided on the main piston (22). The connecting rod (23) passes through the housing (10) and extends to the outside of the housing (10). A main friction plate (24) is provided at the end of the connecting rod (23) extending to the outside of the housing (10). Main channel (26), which is disposed on the housing (10) and communicates with the main cavity (21).

4. The dual-piston brake caliper according to claim 3, characterized in that, The main brake assembly also includes a spring (25), which is disposed between the main piston (22) and the inner wall of the main cavity (21) and connects the two.

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