Sanding device for shaft neck of semi-shaft oil seal and sanding technology thereof

Abstract

The invention discloses a sanding device for a shaft neck of a semi-shaft oil seal. The device comprises a bottom plate, a sanding belt, a driven wheel support, an electromagnetic braking motor, a time relay and a switch K1, wherein a step platform is arranged at one end of the bottom plate, and a supporting plate is arranged on the step platform; the electromagnetic braking motor is mounted at one end of the supporting plate; the time relay is mounted at the rear side of the bottom plate; the electromagnetic braking motor is sequentially connected to the time relay, the switch K1 and the power supply through conductors so as to form a closed loop; a driving wheel is arranged on an output shaft of the electromagnetic braking motor; the driven wheel support is of a tri-forked structure; a long waist shaped hole is formed in one edge of the tri-forked structure, and driven wheel devices are arranged at the tail ends of the rest two sides; and the sanding belt coils the driving wheel andthe driven wheels of the two driven wheel devices. According to the device, the surface of the shaft neck of the half-shaft oil sealing is polished and then is smoothened through the static sanding belt, so that the cotton yarn test pass rate is increased, and the potential risk of oil leaking of the half-shaft oil seal can be avoided.

Description

technical field [0001] The invention belongs to the field of mechanical processing, and relates to a sanding device and a sanding process for a shaft journal of a half-shaft oil seal. Background technique [0002] During the operation of the car, the oil leakage of the axle shaft oil seal is a major quality problem. Practice has proved that if the cotton yarn test of the half-shaft oil seal journal fails, the probability of oil leakage on the rear axle is very high. [0003] Cotton Yarn Test Introduction: Next Figure 6 As shown, when the half shaft rotates at a speed of 60rpm / min, if the cotton yarn and the 10g weight hanging on the journal of the oil seal do not move axially, it is said that the cotton yarn test is qualified; if the cotton yarn and the weight will move axially If it moves, it is called unqualified cotton yarn test. [0004] The main reason for the unqualified cotton yarn test is that the roughness is not up to standard, and there may be spiral lines on t...

AI Technical Summary

Problems solved by technology

[0004] The main reason for the unqualified cotton yarn test is that the roughness is not up to standard, and there may be spiral lines on the surface of the oil seal journal. These lines will guide the direction of the liquid oil when the half shaft is running, causing oil leakage

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