A mechanical brake distribution device

Abstract

This utility model discloses a mechanical brake distribution device, including a frame. Two mounting base plates are symmetrically mounted on the frame, and each mounting base plate is equipped with a mounting bracket. A self-lubricating bushing is installed inside each mounting bracket, and a brake distribution shaft is mounted on the inner side of the self-lubricating bushing. A pull rod rocker arm is mounted at the end of the brake distribution shaft, and a middle rocker arm and a support bracket are respectively mounted in the middle of the brake distribution shaft. This device uses a self-lubricating bushing structure to reduce the clearance during brake distribution shaft rotation and reduce the braking system's free travel. Furthermore, this device is an assembly component, easily achieving parts standardization and reducing costs.

Description

Technical Field

[0001] This utility model relates to the field of mechanical braking technology, specifically a mechanical braking distribution device. Background Technology

[0002] Currently, the braking systems of electric tricycles on the market can be roughly divided into mechanical linkage brakes, hydraulic brakes, and air brakes. Among them, mechanical linkage brakes are mostly used in light-duty freight vehicles and have better reliability.

[0003] However, market feedback indicates that mechanical linkage braking devices suffer from excessive pedal free travel, affecting the braking feel. Therefore, an analysis of existing mechanical linkage braking devices revealed a rotational movement between the brake distribution shaft and its fixing hole, resulting in a large gap that significantly contributes to the brake pedal free travel. By optimizing the fixing method of the brake distribution shaft, the rotational gap is reduced, thereby eliminating some of the free travel.

[0004] Therefore, a mechanical braking distribution device is proposed. Summary of the Invention

[0005] The purpose of this invention is to provide a mechanical braking distribution device to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a mechanical brake distribution device, including a frame, on which two mounting base fixing plates are symmetrically mounted, and each of the two mounting base fixing plates is equipped with a mounting bracket, a self-lubricating bushing is installed inside the mounting bracket, and a brake distribution shaft is installed on the inner side of the self-lubricating bushing;

[0007] A tie rod rocker arm is installed at the end of the brake distribution shaft, and an intermediate rocker arm and a support bracket are respectively installed in the middle part of the brake distribution shaft. The intermediate rocker arm is connected to the pedal rocker arm of the whole vehicle through a tie rod, and the support bracket is connected to the vehicle frame.

[0008] Preferably, a flexible cylindrical pin for fixing is installed between the end of the pull rod rocker arm and the brake distribution shaft.

[0009] Preferably, the mounting base fixing plate is fixedly connected to the vehicle frame by welding.

[0010] Preferably, a spring washer and a hexagonal head bolt are installed between the mounting bracket and the mounting base fixing plate for fixing.

[0011] Preferably, a handbrake rocker arm is also installed on the brake distribution shaft, and the handbrake rocker arm is connected to the vehicle parking handle.

[0012] Preferably, the tie rod rocker arm is connected to the rear axle brake rocker arm of the vehicle via a tie rod.

[0013] Compared with the prior art, the beneficial effects of this utility model are: the device uses a self-lubricating bushing structure, which reduces the clearance when the brake distribution shaft rotates and reduces the idle travel of the braking system. At the same time, the device is an assembly component, which facilitates the standardization of parts and reduces costs. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model;

[0015] Figure 2 This is an exploded view of the structure of this utility model.

[0016] In the diagram: 1. Pull rod rocker arm; 2. Mounting bracket; 3. Self-lubricating bushing; 4. Mounting base fixing plate; 5. Elastic cylindrical pin; 6. Brake distribution shaft; 6.1. Handbrake rocker arm; 6.2. Intermediate rocker arm; 6.3. Support bracket; 7. Spring washer; 8. Hex head bolt; 9. Frame. Detailed Implementation

[0017] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0018] Please see Figure 1-2 This utility model provides a technical solution: a structure that can realize transmission and braking, which realizes the vehicle braking function by receiving and transmitting the braking force of the whole vehicle through the brake distribution shaft 6. Its feature is that the shaft ends on both sides of the brake distribution shaft 6 are hinged to the mounting support 2 through self-lubricating bushings 3.

[0019] The tie rod rocker arm 1 is fixedly connected to the brake distribution shaft 6 by the elastic cylindrical pin 5. The mounting base fixing plate 4 is welded to the frame 9. The mounting bracket 2 is fixedly connected to the mounting base fixing plate 4 by spring washers 7 and hexagonal head bolts 8. The support bracket 6.3 is also fixedly connected to the frame 9 by spring washers 7 and hexagonal head bolts 8.

[0020] The intermediate rocker arm 6.2 on the brake distribution shaft weld 6 is connected to the vehicle pedal rocker arm via a tie rod. The tie rod rocker arm weld 1 is connected to the vehicle's rear axle brake rocker arm via a tie rod. This allows the driver to press the pedal, which pulls the intermediate rocker arm 6.2, causing the tie rod rocker arm weld 1 to rotate and pull the rear axle brake rocker arm, thus achieving the vehicle's service braking function. Simultaneously, the brake rocker arm 6.1 is connected to the vehicle's parking handle to achieve the parking function.

[0021] Working principle: The brake distribution shaft 6 and the mounting bracket 2 are hinged together by a self-lubricating bushing 3. The mounting bracket 2 is fixed to the frame 9 by spring washers 7 and hexagonal head bolts 8, realizing the bearing and transmission of pedal force. The tie rod rocker arm welded 1 is connected to the rear axle brake rocker arm of the vehicle by a tie rod, realizing the transmission of pedal force to the wheel-side brakes. The intermediate rocker arm 6.2 is connected to the vehicle pedal rocker arm by a tie rod, realizing the transmission of pedal force to the brake distribution shaft. When the driver presses the pedal, the pedal rocker arm pulls the intermediate rocker arm 6.2, which in turn drives the tie rod rocker arm welded 1 to rotate, pulling the rear axle brake rocker arm, thereby realizing the vehicle's service braking function.

[0022] Although 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 alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A mechanical brake distribution device, comprising a frame (9), characterized in that: Two mounting base fixing plates (4) are symmetrically installed on the frame (9). Each of the two mounting base fixing plates (4) is equipped with a mounting bracket (2). A self-lubricating bushing (3) is installed inside the mounting bracket (2). A brake distribution shaft (6) is installed on the inner side of the self-lubricating bushing (3). A pull rod rocker arm (1) is installed at the end of the brake distribution shaft (6). A middle rocker arm (6.2) and a support bracket (6.3) are respectively installed in the middle part of the brake distribution shaft (6). The middle rocker arm (6.2) is connected to the pedal rocker arm of the whole vehicle through a pull rod. The support bracket (6.3) is connected to the frame (9).

2. The mechanical brake distribution device according to claim 1, characterized in that: A flexible cylindrical pin (5) for fixing is installed between the end of the pull rod rocker arm (1) and the brake distribution shaft (6).

3. The mechanical brake distribution device according to claim 1, characterized in that: The mounting base fixing plate (4) is fixedly connected to the frame (9) by welding.

4. A mechanical brake distribution device according to claim 3, characterized in that: A spring washer (7) and a hexagonal head bolt (8) for fixing are installed between the mounting bracket (2) and the mounting base fixing plate (4).

5. A mechanical brake distribution device according to claim 1, characterized in that: A handbrake rocker arm (6.1) is also installed on the brake distribution shaft (6), and the handbrake rocker arm (6.1) is connected to the vehicle parking handle.

6. A mechanical brake distribution device according to claim 1, characterized in that: The tie rod rocker arm (1) is connected to the rear axle brake rocker arm of the vehicle via a tie rod.

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