Measuring device and method of use for inner hole wear of stroke drive shaft bushing

Abstract

The invention belongs to the technical field of mining equipment, and in particular relates to a device for measuring the inner hole wear of a stroke drive shaft bushing and a method for using it. The measuring device is composed of three measuring rods and a right-angle measuring ruler matched with the three measuring rods. One end of the rod is threaded, and the other end is a cylinder. The right-angle measuring ruler is composed of a base plate with two positioning holes and a measuring ruler connected at right angles to one end of the base plate. The two positioning holes are rectangular. Mounting holes. The method of use is to tighten the measuring rods in the oil plug holes respectively, insert the rectangular holes on the base plate into the measuring rods respectively, and measure the height reference dimension of the drive shaft during standard assembly. During the operation of the electric shovel, Measure the vertical distance between the transmission shaft and the line connecting the two supporting wheel shafts, and calculate the result. Effectively improve inspection work efficiency, reduce maintenance labor intensity, and save production and maintenance costs.

Description

technical field [0001] The invention belongs to the field of mining equipment, and in particular relates to a device for measuring the inner hole wear of a stroke transmission shaft bush and a method for using it. Background technique [0002] The stroke device is a device that transmits torque and speed by the drive shafts on both sides. Since each drive shaft drives the track shoe to rotate on the outside, it can be approximately regarded as the inner side in the instantaneous force analysis of the drive shaft. The small bushing of the transmission shaft is a fulcrum, and the stress point and the force arm of the large bushing on the outside of the transmission shaft and the joint of the transmission shaft and the wheel and the force arm are combined into two balance forces of the lever. From this analysis, in the daily production operation process, because the travel device is always in a state of high load, heavy load and frequent movement, it is very easy to cause wear ...

AI Technical Summary

Problems solved by technology

From this analysis, in the daily production operation process, because the stroke device is always in a state of high load, heavy load and frequent movement, it is very easy to cause wear on the inner hole of the large bushing on the outside of the stroke transmission shaft

However, in the process of daily equipment inspection, due to the large bumps and vibrations during the traveling process, when the wear amount of the inner hole diameter of the outer bushing of the transmission shaft is 1-10 mm, it is difficult for the equipment inspection personnel to measure and identify the outer bushing of the transmission shaft visually and sensorially. The wear amount of the inner hole. At this time, since there is already a gap between the drive shaft and the inner hole of the bushing, the dust carried by the track shoes can easily enter the gap between the drive shaft and the bushing during operation.

Therefore, it is not only easy to block the lubricating oil channel of the drive shaft, but also to accelerate the wear of the inner hole of the drive shaft bushing

At the same time, when the wear amount of the inner hole of the drive shaft bush gradually increases, it will also cause the drive shaft and the gears that are meshing with each other to be skewed, which will easily lead to uneven force on the adjacent gears, resulting in tooth punching and broken teeth. And broken shafts and other failures occur, resulting in equipment failure and shutdown, affecting the production and operation of equipment

Images