Universal transmission shaft assembly

Abstract

The invention relates to the technical field of transmission shafts, in particular to a universal transmission shaft assembly which comprises a first transmission shaft and a second transmission shaft, wherein a telescopic cavity is formed in the right side of the first transmission shaft, and a spline shaft is fixedly connected to the left side of the second transmission shaft and located in the telescopic cavity; the annular inner surface of the telescopic cavity is fixedly connected with a groove and correspondingly matched with the spline shaft, the annular outer surface of the first transmission shaft is fixedly connected with two groups of protruding blocks, the protruding blocks are symmetrically distributed with the center of the first transmission shaft as the midpoint, and a lubricating assembly is arranged in the telescopic cavity; an oil storage cavity is formed between the lubricating assembly and the telescopic cavity, the telescopic cavity is divided by the lubricating assembly to form an oil storage cavity, and the first transmission shaft rotates to generate centrifugal force to pull a first cover plate to move towards an oil injection opening and be tightly attached to the oil injection opening under the mutual cooperation of a guide rod, a gear and a balance weight ball, so that lubricating oil in the oil storage cavity cannot leak due to poor sealing performance of the first cover plate, and therefore, the utilization rate of the lubricating oil by the lubricating assembly is increased.

Description

technical field [0001] The invention relates to the technical field of transmission shafts, in particular to a universal joint transmission shaft assembly. Background technique [0002] The cardan shaft is an important part of power transmission in the car transmission system. Its function is to transmit the power of the engine to the wheels together with the gearbox and drive axle, so that the car can generate driving force; [0003] In the process of realizing the present invention, at least the following problems in the prior art of the inventor have not been solved: 1. The cardan shaft needs to regularly lubricate and prevent rust on the joints of the internal parts of the shaft according to the use environment, so as to prolong the life of the universal drive shaft. The service life of the shaft, but the general cardan shaft is often manually disassembled from the shaft connection, and then poured lubricating oil into the shaft, which is time-consuming and laborious, an...

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Problems solved by technology

[0003] In the process of realizing the present invention, at least the following problems in the prior art of the inventor have not been solved: 1. The cardan shaft needs to regularly lubricate and prevent rust on the joints of the internal parts of the shaft according to the use environment, so as to prolong the life of the universal drive shaft. The service life of the shaft, but the general cardan shaft is often manually disassembled from the shaft connection, and then poured lubricating oil into the shaft, which is time-consuming and laborious, and will affect work efficiency; 2. For agricultural vehicles used in rural areas The cardan shaft mounted on the car, the cardan shaft rotates at a high speed during normal operation, and there are many stones on the road in rural areas. As the vehicle moves forward, some stones will be squeezed by the edge of the tire and bounce up, which may cause Collision with the spline shaft of the universal joint shaft, causing damage to the spline shaft, thus affecting the service life of the universal joint shaft

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