A universal joint transmission lubricating device for easy maintenance

Abstract

The invention discloses a universal joint driving lubrication device convenient to maintain. The universal joint driving lubrication device is characterized by comprising a shaft fork, a cross shaft, an oil filling nozzle, bearing racks, snap rings and a countersunk head screw, wherein the oil filling nozzle is formed in the cross shaft; an oil channel of the oil filling nozzle is communicated with the center of the cross oil channel of the cross shaft; the bearing racks are respectively mounted on four shaft heads of the cross shaft; a boss is arranged in the center of the inner end surface of each bearing racks; a threaded hole with a groove is formed in the center of the outer end surface of each bearing rack and penetrates through the corresponding boss; the center of the threaded hole is corresponding to that of the cross oil channel of the cross shaft; the countersunk head screw is mounted in the threaded hole; a groove for twisting the countersunk head screw is formed in the outer end surface of a screw head of the countersunk head screw; the snap rings are evenly arranged on the inner circumferential surfaces on the outer sides of the two fork heads at the front end of the shaft fork; two fork heads are respectively connected with two opposite bearing racks; the snap rings are arranged in clamp grooves of the shaft fork; a protruding part which extend in the center direction is arranged at a position opposite to openings of the snap rings; the length of the protruding part is more than or equal to the radius of each snap ring. The universal joint driving lubrication device has the benefits that the structure is simple, the coast is low and the operation is easy; the problem of the dredging of the universal joint can be effectively solved without needing to dismount the device, so that the working efficiency is improved, and the service life of the device is prolonged.

Description

technical field [0001] The invention relates to a lubricating device, in particular to a universal joint transmission lubricating device which is convenient for maintenance. Background technique [0002] The universal joint on the drive shaft of a heavy-duty truck is usually composed of a shaft fork, a cross shaft, and a shaft sleeve; it is completely closed after installation, leaving only a grease nozzle in the middle; during the use of the universal joint, in order to increase its service life, It is necessary to inject oil into the cross oil channel of the cross shaft through the grease nozzle, and then fully lubricate the needle roller bearings at the four shaft heads; during use, grease problems and dust and other substances will solidify somewhere in the cross oil channel. The oil passage is blocked; the next time the oil is filled, the needle roller bearing connected to it will not get new lubricating oil, which will cause the bearing to wear and cause the universal ...

AI Technical Summary

Problems solved by technology

However, because there is no dredging hole symmetrical to the cross oil channel on the end face of the bearing frame, the clogged part cannot be cleaned, and it can only be cleaned by disassembly and disassembly, which is time-consuming and laborious; but if it is not discovered and treated in time, it will easily cause the cross shaft and the shaft to be damaged if it continues to be used. damage to fork-related items, and are prone to greater hazards

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