Disc brake self-retraction mechanism

Abstract

The utility model discloses disc brake initiative return mechanism, including support assembly, clasp spring, friction plate, return mechanism and calliper assembly, the clasp spring is fixed on the inner wall of support assembly, the clasp spring is used for supporting friction plate, the lateral surface of calliper assembly is provided with the connecting portion against symmetry. The utility model discloses initiative return mechanism and clasp spring cooperation, effectively reduce the drag torque of hydraulic disc type product, reduce the whole vehicle energy consumption demand, improve the fuel economy of vehicle or prolong the endurance mileage of electric automobile, do not depend on brake disc centrifugal force return, can guarantee friction plate and calliper assembly reliable return under various working conditions, promote the stability and reliability of braking system, and the structure design is reasonable, and the installation is convenient.

Description

Technical Field

[0001] This utility model belongs to the technical field of automotive disc brakes, specifically relating to an active return mechanism for disc brakes. Background Technology

[0002] To meet the requirements of low energy consumption and long range for blue-plate vehicles, higher demands are placed on the lightweight and high performance of components.

[0003] For commercial vehicle braking systems, the market environment mainly requires lightweight products with low drag torque. During the vehicle's operation, especially after braking, the brakes need to quickly separate from the brake discs to achieve the vehicle's low energy consumption and high range requirements.

[0004] When hydraulic disc brakes are used in light trucks, they generally rely on the centrifugal force generated by the rotation of the brake disc after braking to return the brake to its original position. Especially after the brake has been running for a period of time, as the various components of the brake wear down and the lubrication mechanism between the components is reduced, the drag torque of the brake will further increase. Utility Model Content

[0005] To solve the above-mentioned technical problems, the present invention provides a technical solution: providing an active return mechanism for a disc brake, including a bracket assembly, a snap ring, a friction plate, a return mechanism, and a caliper assembly; The retaining ring is fixed to the inner wall of the bracket assembly. The retaining ring is used to support the friction plate. The side surface of the caliper assembly is symmetrically provided with connecting parts. The return mechanism does not contact the retaining ring.

[0006] The above technical solution establishes the basic structural framework of the active return mechanism of the disc brake through the bracket assembly, snap ring, friction pad, return mechanism, and caliper assembly. The snap ring is fixed to the inner wall of the bracket assembly to support the friction pad, ensuring the stable installation of the friction pad during braking. The caliper assembly has a connecting part on its side surface, providing a foundation for subsequent connection and installation with other components, making the assembly and operation of the entire mechanism more reliable and improving the stability of the braking system.

[0007] The present invention is further configured such that the return mechanism is connected to the friction plate, and the bracket assembly is in contact with the caliper assembly.

[0008] Through the above technical solution, the return mechanism is connected to the friction pad, so that during the braking process, the friction pad can drive the return mechanism to compress and store energy. When the brake is released, the return mechanism can drive the friction pad to return to its original position, ensuring the continuity and reliability of the brake return action. The contact between the bracket assembly and the caliper assembly is beneficial to the transmission of force and the stable operation of the entire braking mechanism, thereby improving the response speed and accuracy of the braking system.

[0009] The present invention is further configured such that the connecting part contacts the bracket assembly, and the connecting part is internally threaded with a bolt.

[0010] Through the above technical solution, the connecting part contacts the bracket assembly and is connected by bolt threads, making the connection between the caliper assembly and the bracket assembly more stable and reliable. It can withstand various forces during the braking process, ensuring that the braking mechanism will not loosen during frequent braking and return, thus improving the safety and durability of the entire braking system.

[0011] The present invention is further configured such that the bolt is threadedly connected to the bracket assembly, and the side surface of the friction plate is in contact with the caliper assembly.

[0012] The present invention is further configured such that the retaining ring supports the friction plate during the entire stroke conditions of the vehicle, including braking, brake return, and driving.

[0013] Through the above technical solution, the retaining ring supports the friction pad under the full stroke condition, ensuring that the friction pad can maintain a stable position under various working conditions. Whether the vehicle is braking, returning to its original position or driving normally, it can provide reliable support for the friction pad, effectively avoiding problems such as displacement of the friction pad during operation, improving the stability and reliability of the braking system, and thus improving the safety of vehicle driving.

[0014] The present invention is further configured such that the return mechanism is an elastic element.

[0015] The beneficial effects of this utility model are as follows: By cooperating with the circlip, the active return mechanism effectively reduces the drag torque of hydraulic disc brakes, reduces the energy consumption of the vehicle, improves the fuel economy of the vehicle or extends the driving range of electric vehicles. It does not rely on the centrifugal force of the brake disc for return and can ensure the reliable return of the friction pads and caliper components under various working conditions, thereby improving the stability and reliability of the braking system. The structure is reasonably designed and easy to install. Attached Figure Description

[0016] Figure 1 This is a first-view structural diagram of the active return mechanism of the disc brake of this utility model; Figure 2 This is a second-view structural diagram of the active return mechanism of the disc brake of this utility model; Figure 3 This is an exploded view of the active return mechanism of the disc brake of this utility model; Figure 4 This is a partial structural schematic diagram of the active return mechanism of the disc brake of this utility model.

[0017] Reference numerals: 1. Bracket assembly; 2. Snap ring; 3. Friction plate; 4. Return mechanism; 5. Caliper assembly; 6. Connecting part; 7. Bolt. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0019] like Figures 1-4 As shown, the active return mechanism of the disc brake in this embodiment includes a bracket assembly 1, a retaining ring 2, a friction plate 3, a return mechanism 4, and a caliper assembly 5.

[0020] As the basic support component of the entire disc brake active return mechanism, the bracket assembly 1 provides an installation carrier and structural support for other components, ensuring the stability of the relative positional relationship between the components and enabling the entire braking mechanism to operate in an orderly manner. At the same time, it contacts the caliper assembly 5 and is connected through bolts 7, which can effectively transmit the force during the braking process and ensure the reliable realization of the braking function. During the braking process, the bracket assembly 1 bears the braking force transmitted by the caliper assembly 5 and distributes it reasonably to maintain the overall stability of the mechanism. When the brake is released, it provides a stable support foundation for the return process and cooperates with other components to achieve active return.

[0021] The return mechanism 4 is an elastic element. The return mechanism 4 does not contact the retaining ring 2. The return mechanism 4 utilizes its elastic properties to compress and store elastic potential energy during braking. After the brake is released, it releases energy to provide return force for the friction pad 3 and caliper assembly 5, realizing active return. This is different from the traditional return method that relies on the centrifugal force of the brake disc. It can effectively reduce the drag torque of hydraulic disc products, thereby reducing the energy consumption of the whole vehicle and improving the energy utilization efficiency of the braking system.

[0022] The return mechanism 4 is connected to the friction pad 3, and the bracket assembly 1 is in contact with the caliper assembly 5. The connection between the caliper assembly 5 and the hydraulic system is known to those skilled in the art. During braking, under the action of external forces such as the hydraulic system, the caliper assembly 5 pushes the friction pad 3 to move towards the brake disc, so that the friction pad 3 and the brake disc generate friction to achieve braking. After the brake is released, under the action of the return force of the return mechanism 4, it returns to the initial position together with the friction pad 3, preparing for the next braking.

[0023] Friction pad 3 is a component that directly contacts the brake disc to generate friction and achieve braking. It is connected to the return mechanism 4 and works together during braking and return to ensure the continuity of braking and return. It contacts the caliper assembly 5 and can accurately receive the thrust of the caliper assembly 5 to achieve reliable braking. During braking, under the thrust of the caliper assembly 5, the friction pad 3 is in close contact with the brake disc and relies on friction to achieve vehicle braking. During braking, it drives the return mechanism 4 to compress and store energy. After the brake is released, under the return force of the return mechanism 4, it returns to the initial position together with the caliper assembly 5.

[0024] The retaining spring 2 is fixed to the inner wall of the bracket assembly 1. The retaining spring 2 is used to support the friction pad 3. The retaining spring 2 supports the friction pad 3 throughout the entire stroke of the vehicle, including braking, brake return, and driving. It can ensure that the friction pad 3 is always in the correct position and prevent it from shifting or shaking during braking, thus ensuring the stability and reliability of braking. At the same time, it provides stable support for the friction pad 3, which helps to improve the service life of the friction pad 3. During braking, the retaining spring 2 firmly supports the friction pad 3, so that the friction pad 3 can normally accept the thrust of the caliper assembly 5 to achieve braking. After the brake is released, it continues to support the friction pad 3 and works with the return mechanism 4 to make the friction pad 3 return smoothly.

[0025] The caliper assembly 5 has symmetrically arranged connecting parts 6 on its side surface. The connecting parts 6 are in contact with the bracket assembly 1. The connecting parts 6 are threaded with bolts 7, which are threaded with the bracket assembly 1. The side surface of the friction plate 3 is in contact with the caliper assembly 5.

[0026] The working principle of this utility model is as follows: When the vehicle needs to brake, the hydraulic system of the brake will push the caliper assembly 5. The caliper assembly 5 applies a thrust to the friction pad 3. Under the support of the retaining spring 2, the friction pad 3 drives the return mechanism 4 to compress in the middle direction. The return mechanism 4 stores elastic potential energy. When the brake is released, the return mechanism 4 releases the stored energy and generates a return force, which drives the friction pad 3 and the caliper assembly 5 back to the initial position, completing the brake return action.

[0027] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the description and drawings of this utility model, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A disc brake active return mechanism, characterized in that: It includes a bracket assembly (1), a snap ring (2), a friction plate (3), a return mechanism (4), and a caliper assembly (5); The retaining ring (2) is fixed on the inner wall of the bracket assembly (1). The retaining ring (2) is used to support the friction plate (3). The side surface of the caliper assembly (5) is symmetrically provided with connecting parts (6). The return mechanism (4) is connected to the friction plate (3), and the bracket assembly (1) is in contact with the caliper assembly (5); The return mechanism (4) is an elastic element and does not contact the snap ring (2).

2. The disc brake active return mechanism according to claim 1, characterized in that, The connecting part (6) contacts the bracket assembly (1), and the connecting part (6) is internally threaded with a bolt (7).

3. The disc brake active return mechanism according to claim 2, characterized in that, The bolt (7) is threadedly connected to the bracket assembly (1), and the side surface of the friction plate (3) is in contact with the caliper assembly (5).

4. The disc brake active return mechanism according to claim 1, characterized in that, The retaining ring (2) supports the friction plate (3) under the conditions of vehicle braking, brake return, and full driving stroke.

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