Brake structure of wheel excavator

Abstract

The utility model discloses a brake structure of a wheel excavator, and aims to solve the problems that a brake bottom plate is formed by stamping a steel plate, so that the brake bottom plate is easy to deform and even crack, the brake effect is influenced, and even potential safety hazards are generated in the conventional brake structure of the wheel excavator. One side of a supporting plate (6) is connected to the surface, facing a brake shoe (5), of a brake bottom plate (4), and a pin shaft seat (8) is mounted at the lower end of the other side of the supporting plate (6).

Description

Technical Field

[0001] The utility model relates to a wheeled excavator, in particular to a brake structure of the wheeled excavator composed of a brake drum, a pin shaft, a brake shoe, a brake bottom plate and a cam shaft. Background Art

[0002] At present, such a wheeled excavator braking structure is disclosed in the market, and its structural features are: it is composed of a pin shaft, a brake shoe, a brake base plate and a camshaft, two brake shoes, two pin shafts and a camshaft are arranged in the disc-shaped brake base plate, one end of a brake shoe is rotatably connected with a pin shaft, the other end of a brake shoe is in rolling contact with one side of a cam on one end of the camshaft, the other side of the cam is in rolling contact with one end of another brake shoe, the other end of the other brake shoe is rotatably connected with another pin shaft, and brake pads are respectively arranged on the brake shoes between the two brake shoes and the curved surface in the brake drum. Since the brake base plate is stamped from a steel plate, it is easy to cause the brake base plate to deform or even crack, thereby affecting the braking effect and even causing safety hazards. Summary of the invention

[0003] The utility model aims to provide a wheeled excavator brake structure which is not easy to deform or crack, has a better braking effect and can effectively eliminate potential safety hazards.

[0004] To achieve the above-mentioned purpose, the utility model provides a wheeled excavator brake structure, which is composed of a pin shaft, a brake shoe, a brake base plate and a camshaft. Two brake shoes, two pin shafts and a camshaft are arranged in the disc-shaped brake base plate. One end of a brake shoe is rotatably connected to a pin shaft, the other end of a brake shoe is in rolling contact with one side of a cam on one end of the camshaft, the other side of the cam is in rolling contact with one end of another brake shoe, and the other end of the other brake shoe is rotatably connected to another pin shaft. Brake pads are respectively arranged on the brake shoes between the two brake shoes and the curved surface in the brake drum, one side of the support plate is connected to the surface of the brake base plate facing the brake shoe, and a pin shaft seat is installed at the lower end of the other side of the support plate.

[0005] A hole for installing the camshaft is arranged at the upper end of the support plate, and a hole for sleeve-mounting the half-axle sleeve is arranged at the middle part of the support plate.

[0006] With this structure, since one side of the support plate is connected to the surface of the brake bottom plate facing the brake shoe, and a pin shaft seat is installed at the lower end of the other side of the support plate, the thickness and strength of the brake bottom plate are increased, so that it is not easy to deform or crack, the braking effect is better, and the safety hazard can be effectively eliminated. BRIEF DESCRIPTION OF THE DRAWINGS

[0007] The utility model is further described in detail below in conjunction with the accompanying drawings and embodiments.

[0008] AttachedFigure 1 The utility model is a three-dimensional schematic diagram of a brake structure of a wheeled excavator.

[0009] Attached Figure 2 The utility model is a three-dimensional schematic diagram of a brake bottom plate of a brake structure of a wheeled excavator.

[0010] Attached Figure 3 The utility model is a cross-sectional schematic diagram of a brake bottom plate of a brake structure of a wheeled excavator.

[0011] In the figure: 1. camshaft 2. cam 3. brake pad 4. brake base plate 5. brake shoe 6. support plate 7. pin 8. pin seat. DETAILED DESCRIPTION

[0012] Attached Figure 1 , Attachment Figure 2 and attached Figure 3 The utility model is a wheeled excavator brake structure, which is composed of a pin shaft 7, a brake shoe 5, a brake base plate 4 and a camshaft 1. Two brake shoes 5, two pin shafts 7 and a camshaft 1 are arranged in the disc-shaped brake base plate 4. One end of a brake shoe 5 is rotatably connected to a pin shaft 7, and the other end of one brake shoe 5 is in rolling contact with one side of a cam 2 on one end of the camshaft 1. The other side of the cam 2 is in rolling contact with one end of another brake shoe 5, and the other end of the other brake shoe 5 is rotatably connected to the other pin shaft 7. Brake pads 3 are respectively arranged on the brake shoes 5 between the two brake shoes 5 and the curved surface in the brake drum. One side of the support plate 6 is connected to the surface of the brake base plate 4 facing the brake shoe 5, and a pin shaft seat 8 is installed at the lower end of the other side of the support plate 6; a hole for installing the camshaft 1 is arranged at the upper end of the support plate 6, and a hole that can be sleeved on the half-axle sleeve is arranged in the middle of the support plate 6.

Claims

1. A wheeled excavator brake structure, consisting of a pin shaft, a brake shoe, a brake base plate and a camshaft, wherein two brake shoes, two pin shafts and a camshaft are arranged in a disc-shaped brake base plate, one end of a brake shoe is rotatably connected to a pin shaft, the other end of a brake shoe is in rolling contact with one side of a cam on one end of the camshaft, the other side of the cam is in rolling contact with one end of another brake shoe, the other end of the other brake shoe is rotatably connected with another pin shaft, and brake pads are respectively arranged on the brake shoes between the two brake shoes and the curved surface in the brake drum, characterized in that: A support plate (6) is connected to one side of the brake base plate (4) facing the brake shoe (5), and a pin shaft seat (8) is installed at the lower end of the other side of the support plate (6).

2. A wheel excavator brake structure according to claim 1, characterized in that: A hole capable of mounting the camshaft (1) is provided at the upper end of the support plate (6), and a hole capable of being sleeved on a half-axle sleeve is provided in the middle of the support plate (6).

Images