Self-lubricating car transmission shaft

Abstract

The invention discloses a self-lubricating car transmission shaft. The self-lubricating car transmission shaft comprises a stretchable sleeve, a universal joint fork is arranged at one end of the stretchable sleeve, a sliding spline groove is embedded inside the other end of the stretchable sleeve, an oil sealing ring is arranged at the end, far away from the stretchable sleeve, of the sliding spline groove, an oil sealing cover is arranged on the side, far away from the sliding spline groove, of the oil sealing ring, and a transmission shaft pipe is arranged at the axis position of the side, far away from the oil sealing ring, of the oil sealing cover; a steel ball holder is arranged at the end, located inside the stretchable sleeve, of a lubricating nipple, steel balls are fixed to the steel ball holder and are in contact with the sliding spline groove, a lubricating oil storage tank is arranged above the lubricating nipple, the steel balls are driven to rotate when the sliding spline groove and the stretchable sleeve have relative displacement, and lubricating oil inside the lubricating oil storage tank is brought into the stretchable sleeve; and the lubricating effect on the sliding spline groove and spline teeth is achieved automatically, and the problem that abrasion of the sliding spline groove and the spline teeth is serious due to the fact that the stretchable sleeve is lack of lubricating oil is solved.

Description

Technical field [0001] The invention belongs to the technical field related to transmission shafts, and specifically relates to a self-lubricating automobile transmission shaft. Background technique [0002] The drive shaft is a rotating body with high speed and less support, so its dynamic balance is very important. Generally, the drive shaft must undergo a dynamic balance test before leaving the factory and be adjusted on a balance machine. For the front-engine rear-wheel drive car, the transmission rotation is transmitted to the shaft of the final reducer. It can be several sections, and the sections can be connected by universal joints. The drive shaft is composed of a shaft tube, a telescopic sleeve and a universal joint. The drive shaft is connected or assembled with various accessories, and the accessories of round objects that can be moved or rotated are generally made of light alloy steel pipes with good torsion resistance. [0003] However, the transmission shaft of th...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a self-lubricating automobile drive shaft to solve the problems of insufficient lubricating oil, increased friction between spline teeth and spline grooves, and accelerated wear and tear in the above-mentioned background technology.

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