Walking wheel assembly of thin ore bed mining machine

Abstract

The invention relates to a walking wheel assembly of a thin ore bed mining machine. The walking wheel assembly comprises a shaft sleeve as well as a walking wheel and a large gear which are sleeved on the shaft sleeve, inner holes of the walking wheel and the large gear are respectively a stepped hole with a small left part and a large right part and a stepped hole with a small right part and a large left part, a left roller set is arranged between the smaller inner hole section of the walking wheel and the shaft sleeve, a right roller set is arranged between the smaller inner hole section of the large gear and the shaft sleeve, and two rows of axial stress bearings are arranged between the larger inner hole section of the walking wheel and the shaft sleeve and between the larger inner hole section of the large gear and the shaft sleeve. The the left end of the left roller set is axially positioned by sleeving the left end of the shaft sleeve with a left end cover or arranging a walking wheel left flange integrated with the walking wheel at the left end of the left roller set; and the right end of the right roller set is axially positioned by sleeving the right end of the shaft sleeve with a right end cover or arranging a large gear right flange integrated with the large gear at the right end of the right roller set. The walking wheel assembly can bear large radial and axial force, and the adaptability is improved when a wear-resistant layer on the contact surface of the guide sliding shoe and a rail is excessively worn.

Description

technical field [0001] The invention relates to a walking wheel assembly of a mining machine, which is especially suitable for the walking system of a thin-seam mining machine, especially when the walking wheel assembly bears a large axial force after the wear-resistant layer of the guide shoe is excessively worn, and belongs to underground mining. field of mechanical technology. Background technique [0002] The walking system of a thin seam mining machine usually requires a smaller diameter, and the structural design of the walking wheel assembly is from two pieces of self-aligning roller bearings or a double row roller bearing usually used in the walking wheel assembly of a medium-thick or thin seam mining machine The structure has been developed into the form of a multi-row roller structure (see Figure 5 ). Compared with the bearing of ordinary structure, the roller structure removes the conventional inner ring and outer ring, and directly uses the inner hole 131 of th...

AI Technical Summary

Problems solved by technology

However, this maintenance method leads to high cost of time and spare parts loss. What is more serious is that when there are a large number of hard lithology or faults in the working face of the mining seam, it is basically impossible to accurately predict or directly detect the amount of wear. Leading to overall damage to the walking wheel assembly, and some also damaged the installation hole of the walking wheel assembly on the walking box shell, resulting in greater losses and seriously affecting mining efficiency and mineral output

Images