Bending-torsion complex dynamic loading device

Abstract

The invention discloses a bending-torsion complex dynamic loading device, which belongs to loading devices, and comprises a motor, a gearbox, a transmission shaft alternate angle adjustment system, a pivot box assembly adjustment system and a lever loading system, wherein the motor is connected with the gearbox through a transmission system, the other end of the gearbox is connected with the pivot box assembly adjustment system through the transmission shaft alternate angle adjustment system, and the lever loading system is connected with the pivot box assembly adjustment system; the transmission system comprises a motor belt pulley, a gearbox belt pulley and a belt; the pivot box assembly adjustment system comprises a pivot assembly box A, a pivot assembly box B, attachment bolts, a guide cylinder, an adjusting bolt and springs; the lever loading system comprises a loading lever and a loading weight; and the transmission shaft alternate angle adjustment system comprises a friction clutch, a first universal transmission shaft, a second universal transmission shaft and a universal coupling. The bending-torsion complex dynamic loading device has the advantages of being simple, compact and reliable in structure, being convenient in operating and adjustment, achieving radial loading and torque loading of different magnitudes and the like.

Description

technical field [0001] The invention relates to a loading device, in particular to a bending-torsion composite dynamic loading device for a closed power flow type gear contact fatigue wear tester. Background technique [0002] In the mechanical closed test bench, the loader is a key component. This is because the closed moment in the test bench is generated by the loader, and the performance of the loader directly affects the performance and technical and economic indicators of the test bench. Due to factors such as manufacturing and installation errors, deformation, and friction coefficient changes, an internal excitation is formed in the mechanically closed test bench, so that internal vibration occurs when the rigid lever loading test bench operates at high speed, which affects the stability of the load. According to statistics, the resulting error is as high as 25%. Rigid lever loading system cannot realize combined dynamic loading of bending and torsion, so it is not s...

AI Technical Summary

Problems solved by technology

Rigid lever loading system cannot achieve combined bending and torsion dynamic loading, so it is not suitable for simulating and testing the contact fatigue wear performance of gears

Because when the gear is worn, the backlash of the test tooth will change, and the transmission will not be stable, resulting in beating

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