Automatic return device of hydraulic disc brake

Abstract

The utility model relates to the technical field of disc brakes, in particular to an automatic return device of a hydraulic disc brake, which comprises a main body, and a brake component is arranged on the side surface of the main body; the speed sensor is used for measuring the rotating speed of the hub, when the rotating speed is reduced and the hub stops, the electric control actuator can be used for automatically controlling the hydraulic telescopic cylinder to retract, the brake disc is released, then the brake pad can be automatically reset, and the hydraulic telescopic cylinder is compact in structure, small in size and convenient to use. The electric control actuator is a perfect choice under the condition of limited space, the electric control actuator is used for automatically controlling the hydraulic telescopic cylinder, a control device in the electric control actuator can be connected with a terminal through a network or in a wireless communication mode, remote control over the hydraulic telescopic cylinder is achieved, and in the control process, remote control equipment can send a control signal to the electric control actuator so that the electric control actuator can control the hydraulic telescopic cylinder. And the telescoping of the hydraulic telescoping cylinder is controlled.

Description

Technical Field

[0001] The utility model relates to the technical field of disc brakes, in particular to an automatic return device for a hydraulic disc brake. Background Art

[0002] Disc brakes are hydraulically controlled. Their main components include the brake disc, wheel cylinder, caliper, and oil pipes. Disc brakes offer fast heat dissipation, are lightweight, simple in construction, and easy to adjust. They are particularly resistant to high temperatures under high loads, provide stable braking, and are resilient to muddy and watery conditions. For winter driving and adverse road conditions, many cars use flat, perforated, or grooved discs. The grooved disc offers superior braking performance and ventilation and heat dissipation. Made of alloy steel, the disc is fixed to the wheel and rotates with it. The wheel cylinder is fixed to the brake baseplate and remains stationary. The two friction pads of the brake caliper are mounted on either side of the brake disc. The wheel cylinder's piston, acting under the hydraulic pressure delivered by the oil pipe, pushes the friction pads against the brake disc, generating friction braking. This action is like clamping a rotating disc with pliers to force it to stop. Compared to drum brakes, disc brakes have a flat working surface and heat transfer from both sides, making the disc easy to cool as it rotates and less prone to significant deformation. This results in more stable braking performance. After prolonged use, the brake disc expands due to high temperatures, enhancing braking action. Drum brakes, on the other hand, only transfer heat from one side, resulting in a large temperature difference between the inside and outside, which can easily cause deformation of the brake drum. Furthermore, after prolonged braking, the drum expands due to high temperatures, reducing braking performance. Furthermore, disc brakes offer a simpler structure, easier maintenance, and easy automatic adjustment of the brake clearance.

[0003] Authorization publication number CN218377419U discloses an automatic return device for a hydraulic disc brake. This patented technology involves placing the device in its intended position and injecting hydraulic oil into a cavity through an oil pipe. This allows the hydraulic oil to push the brake pad through the cavity, causing it to contact the brake disc. Simultaneously, the brake pad, through a connecting frame, pulls on a return spring to contract. When braking is stopped, the compressed return spring pushes the connecting frame to the right, causing the connecting frame to return the brake pad. The return spring's tightness is adjusted by a compression structure, protected by a protective structure, and guided by a guide structure. However, this solution uses a return spring to return the brake pad, which has numerous drawbacks. For example, the return spring may permanently deform or break over time, making it unsuitable for high-precision mechanical equipment because its elastic modulus has certain errors. Furthermore, its performance may be affected to a certain extent when used in high or low temperature environments. Therefore, a hydraulic disc brake automatic return device is needed to address these issues. Utility Model Content

[0004] In order to solve the problem that the existing solution uses a return spring to reset the brake pad, but the return spring has many disadvantages. For example, the return spring may suffer from permanent deformation or breakage during long-term use, and is not suitable for high-precision mechanical equipment because its elastic coefficient has a certain error. When used in high or low temperature environments, its performance may be affected to a certain extent. The purpose of this utility model is to provide an automatic return device for a hydraulic disc brake to solve the problems raised in the above background technology.

[0005] To achieve the above objectives, the present invention provides the following technical solutions:

[0006] A hydraulic disc brake automatic return device comprises a main body, a brake assembly is provided on the side of the main body;

[0007] The main body includes a brake disc, and a speed sensor is fixedly connected to the side of the brake disc;

[0008] The brake assembly includes a shell, a hydraulic telescopic cylinder is arranged inside the shell, an electric-controlled actuator is fixedly connected to the side of the hydraulic telescopic cylinder, an output end of the hydraulic telescopic cylinder is fixedly connected to a connecting plate, and a brake pad is fixedly connected to the side of the connecting plate.

[0009] As a preferred solution of the present invention, the bottom of the hydraulic telescopic cylinder is fixedly connected to a base, and two bases are provided.

[0010] As a preferred solution of the present invention, a flange plate is fixedly connected to the side of the hydraulic telescopic cylinder, and an oil nozzle is fixedly connected to the top of the hydraulic telescopic cylinder.

[0011] As a preferred solution of the present invention, two connecting plates and two brake pads are provided, the brake disc is provided between the two brake pads, and the interior of the brake disc is fixedly connected to a wheel hub mounting end.

[0012] As a preferred solution of the present invention, a sliding rod is provided inside the housing, and the sliding rod passes through the connecting plate.

[0013] As a preferred solution of the present invention, a fixing block is fixedly connected to the interior of the housing, and the sliding rod is arranged inside the fixing block.

[0014] As a preferred solution of the present invention, a plug is fixedly connected to the side of the slide rod, and two fixing blocks and two plugs are provided.

[0015] As a preferred solution of the present invention, a locking screw is provided on the side of the shell, and two locking screws are provided. An overflow pipe is fixedly connected to the bottom of the shell.

[0016] Compared with the prior art, the beneficial effects of the present invention are:

[0017] 1. In the utility model, a speed sensor is used to measure the rotation speed of the wheel hub. When the rotation speed decreases and stops, an electronically controlled actuator can be used to automatically control the hydraulic telescopic cylinder to retract, releasing the brake disc, thereby automatically resetting the brake pad. In addition, the hydraulic telescopic cylinder has a compact structure and small size, making it a perfect choice when space is limited.

[0018] 2. In the present invention, the hydraulic telescopic cylinder is automatically controlled by utilizing an electric-controlled actuator, and its internal control device can be connected to the terminal via a network or wireless communication to realize remote control of the hydraulic telescopic cylinder. During the control process, the remote control device will send a control signal to the electric-controlled actuator to control the extension and retraction of the hydraulic telescopic cylinder. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0020] Figure 2 This is a schematic diagram of the brake assembly structure of the present utility model;

[0021] Figure 3 This is a schematic structural diagram of the hydraulic telescopic cylinder assembly of the present utility model;

[0022] Figure 4 This is a schematic diagram of the internal structure of the brake assembly of the present invention.

[0023] In the figure: 1. Main body; 101. Brake disc; 102. Speed ​​sensor; 103. Hub mounting end; 2. Brake assembly; 201. Housing; 202. Hydraulic telescopic cylinder; 203. Base; 204. Oil nozzle; 205. Electric actuator; 206. Flange plate; 207. Connecting plate; 208. Brake pad; 209. Locking screw; 210. Overflow pipe; 211. Fixing block; 212. Plug; 213. Sliding rod. DETAILED DESCRIPTION

[0024] The following will combine the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0025] Example: See Figures 1-4 The hydraulic disc brake automatic return device shown includes a main body 1, and a brake assembly 2 is provided on the side of the main body 1;

[0026] In this embodiment, reference Figure 1 、 Figure 2 and Figure 4 As shown, the main body 1 includes a brake disc 101, and a speed sensor 102 is fixedly connected to the side of the brake disc 101. The brake assembly 2 includes a shell 201, and a hydraulic telescopic cylinder 202 is arranged inside the shell 201. The side of the hydraulic telescopic cylinder 202 is fixedly connected to an electric-controlled actuator 205. The output end of the hydraulic telescopic cylinder 202 is fixedly connected to a connecting plate 207, and the side of the connecting plate 207 is fixedly connected to a brake pad 208. The speed sensor 102 is used to measure the rotation speed of the wheel hub. When the rotation speed decreases and stops, the electric-controlled actuator 205 can be used to automatically control the hydraulic telescopic cylinder 202 to retract, so that it releases the brake disc 101, and the brake pad 208 can be automatically reset. In addition, the hydraulic telescopic cylinder 202 has a compact structure and a small size, which is a perfect choice when space is limited.

[0027] In this embodiment, reference Figure 1 、 Figure 3 and Figure 4 As shown, the bottom of the hydraulic telescopic cylinder 202 is fixedly connected to the base 203, two bases 203 are provided, the side of the hydraulic telescopic cylinder 202 is fixedly connected to the flange plate 206, the top of the hydraulic telescopic cylinder 202 is fixedly connected to the oil nozzle 204, the connecting plate 207 and the brake pad 208 are provided with two, the brake disc 101 is set in the middle of the two brake pads 208, the inside of the brake disc 101 is fixedly connected to the wheel hub mounting end 103, the inside of the housing 201 is provided with a slide rod 213, the slide rod 213 passes through the connecting plate 207, the inside of the housing 201 is fixedly connected to the fixed block 211, the slide rod 213 is set on the fixed block 21 1, a plug 212 is fixedly connected to the side of the slide rod 213, two fixed blocks 211 and plugs 212 are provided, a locking screw 209 is provided on the side of the housing 201, two locking screws 209 are provided, and an overflow pipe 210 is fixedly connected to the bottom of the housing 201. The hydraulic telescopic cylinder 202 is automatically controlled by the electronically controlled actuator 205. The internal control device can be connected to the terminal via a network or wireless communication to achieve remote control of the hydraulic telescopic cylinder 202. During the control process, the remote control device will send a control signal to the electronically controlled actuator 205, so that it controls the extension and retraction of the hydraulic telescopic cylinder 202.

[0028] In this solution, an automatic return device for a hydraulic disc brake utilizes an electronically controlled actuator 205 to connect to a terminal via a network or wireless communication when in use, thereby realizing remote control of the hydraulic telescopic cylinder 202. When braking, the remote control device will send a control signal to the electronically controlled actuator 205 to control the extension of the hydraulic telescopic cylinder 202, thereby pushing the brake pad 208 on the side of the connecting plate 207, thereby clamping the brake disc 101 to complete the braking. When the speed stops, the speed sensor 102 will detect that the vehicle has stopped moving, and at this time, the information will be transmitted to the automatic control terminal, and the remote automatic control terminal and the remote control unit will send a control signal to the electronically controlled actuator 205 to control the retraction of the hydraulic telescopic cylinder 202 and release the brake disc 101, thereby completing the reset of the brake pad 208.

[0029] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A hydraulic disc brake automatic return device, comprising a main body (1), characterized in that: A brake assembly (2) is provided on the side of the main body (1); The main body (1) comprises a brake disc (101), and a speed sensor (102) is fixedly connected to a side surface of the brake disc (101); The brake assembly (2) comprises a housing (201), a hydraulic telescopic cylinder (202) is provided inside the housing (201), an electric-controlled actuator (205) is fixedly connected to the side of the hydraulic telescopic cylinder (202), an output end of the hydraulic telescopic cylinder (202) is fixedly connected to a connecting plate (207), and a brake pad (208) is fixedly connected to the side of the connecting plate (207).

2. The automatic return device of a hydraulic disc brake according to claim 1, characterized in that: The bottom of the hydraulic telescopic cylinder (202) is fixedly connected to a base (203), and two bases (203) are provided.

3. The automatic return device of a hydraulic disc brake according to claim 1, characterized in that: A flange plate (206) is fixedly connected to the side of the hydraulic telescopic cylinder (202), and an oil nozzle (204) is fixedly connected to the top of the hydraulic telescopic cylinder (202).

4. The automatic return device for a hydraulic disc brake according to claim 1, characterized in that: There are two connecting plates (207) and two brake pads (208), the brake disc (101) is arranged between the two brake pads (208), and the inside of the brake disc (101) is fixedly connected to a wheel hub mounting end (103).

5. The automatic return device of a hydraulic disc brake according to claim 1, characterized in that: A sliding rod (213) is provided inside the housing (201), and the sliding rod (213) passes through the connecting plate (207).

6. The automatic return device of a hydraulic disc brake according to claim 5, characterized in that: A fixing block (211) is fixedly connected to the interior of the housing (201), and the sliding rod (213) is arranged inside the fixing block (211).

7. The automatic return device of a hydraulic disc brake according to claim 6, characterized in that: A plug (212) is fixedly connected to the side of the slide rod (213), and two fixing blocks (211) and two plugs (212) are provided.

8. The automatic return device of a hydraulic disc brake according to claim 1, characterized in that: A locking screw (209) is provided on the side of the housing (201), and two locking screws (209) are provided. An overflow pipe (210) is fixedly connected to the bottom of the housing (201).

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