Strip rolling mill comprehensive fault simulation test bench considering multidirectional loading working condition

Abstract

The invention relates to a plate and strip rolling mill comprehensive fault simulation test bench considering a multi-directional loading working condition. The test bench comprises a base, an axial loading assembly, a movable radial hydraulic loading assembly, a speed change gear box assembly, a rotating speed and torque control assembly and rollers. The axial loading assembly, the movable radial hydraulic loading assembly, the speed change gear box assembly and the rotating speed and torque control assembly are sequentially arranged on the upper end face of the base. The roller is axially arranged in the middle of the movable radial hydraulic loading assembly; the axial loading assembly is fixedly connected with one end of the movable radial hydraulic loading assembly, and one end of the roller is located in the axial loading assembly. The other end of the roller is connected with one end of the speed change gear box assembly; the other end of the speed change gear box assembly is connected with the rotating speed and torque control assembly. According to the invention, comprehensive faults of multiple rows of rolling bearings and gears under a multidirectional loading working condition can be simulated, and a rolling force unbalance loading effect, a roller system crossing phenomenon and variable working condition rolling can also be simulated.

Description

technical field [0001] The invention relates to the technical field of fault monitoring and diagnosis of rotating machinery, in particular to a comprehensive fault simulation test bench for a strip rolling mill considering multi-directional loading conditions. Background technique [0002] With the development of high-strength, thin-strip steel strip products such as automobile sheets, home appliance sheets, and aviation sheets, the workload of rolling equipment is bound to increase. High-load, high-speed production processes and harsh production environments inevitably induce various rolling mill failures. Among them, the multi-row rolling bearing of the roller series, the gear box bearing and the gear are the key components to bear and transmit the rolling force and torque. They are subjected to various superimposed loads and variable working conditions, resulting in frequent failures, including pitting, Single faults such as wear, indentation and tooth surface gluing, as...

AI Technical Summary

Problems solved by technology

However, the fault monitoring and diagnosis of rolling mill multi-row rolling bearings and gearbox gears under real rolling conditions have not been demonstrated on the production site or in the laboratory, mainly because the on-site rolling environment is harsh, the types of faults are complex, and the data collection is very difficult. Difficult, the test accuracy cannot be guaranteed, and secondly, if it is in the laboratory, the actual rolling conditions cannot be simulated and the test data is inaccurate and other problems

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