Dynamic performance testing machine of joint bearing and transmission shaft rotation drive unit thereof

Abstract

The invention provides a dynamic performance testing machine of a joint bearing and a transmission shaft rotation drive unit thereof. The testing machine comprises at least two transmission shafts that are arranged in parallel and are used for driving an inner ring or outer ring of a to-be-tested bearing; and the transmission shafts are driven by a transmission shaft rotation drive unit to make synchronous rotation. The transmission shaft rotation drive unit includes a parallel connecting rod structure. The parallel connecting rod structure contains a plurality of drive oscillating rods that extend in parallel and are fixedly connected with the transmission shafts in a one-to-one correspondence mode and transmission connecting rods hinged between the adjacent drive oscillating rods; and one drive oscillating rod serves as a driving oscillating rod driven by a power mechanism. The power mechanism consists of a drive motor and a driving crank in transmission connection with a power output shaft of the drive motor; and the driving crank uses a drive connecting rod to drive the driving oscillating rod to make oscillation. One end of the drive connecting rod is hinged with the driving crank and the other end is hinged with the driving oscillating rod. The driving crank, the driving oscillating rod, and the driving oscillating rod form a crank rod-oscillating mechanism. The structure is simple, the impact vibration is low, and the noises are low.

Description

technical field [0001] The invention relates to a joint bearing dynamic performance testing machine and a transmission shaft rotation driving device thereof. Background technique [0002] The joint bearing is a spherical sliding friction swing bearing, which is mainly composed of an inner ring with an outer spherical surface and an outer ring with an inner spherical surface. Joint bearings are widely used and have a high degree of standardization. According to whether there is a rod end (or whether it is installed on the rod end), the joint bearing can be divided into: general joint bearing and rod end joint bearing. With the continuous improvement of the industrial level, rod ends are widely used in mechanical equipment in aviation, textile, coal mine and other industries. At the same time, the equipment manufacturing industry has higher and higher requirements for the quality of rod ends, and the evaluation standards The requirements are becoming more and more string...

AI Technical Summary

Problems solved by technology

[0005] The invention provides a transmission shaft rotation drive device for a joint bearing dynamic performance testing machine to solve the technical problem in the prior art that the driving mechanism that uses a slider to drive the active pendulum to swing has a relatively large impact and vibration; at the same time, the invention also provides Provided is a dynamic performance testing machine for joint bearings using the above transmission shaft rotation drive device

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