Analog loading and integration testing system and method of hydraulic bending roller device of strip rolling mill

Abstract

The invention relates to an analog loading and integration testing system and method of a hydraulic bending roller device of a strip rolling mill and belongs to the technical field of metallurgy devices. The analog loading and integration testing system of the hydraulic bending roller device of the strip rolling mill comprises an analog loading device and an integration testing control system. A rolling mill bending roller dynamic testing analog loading device comprises a fixing back plate-base for fixing the hydraulic bending roller device (a tested piece), a mechanical loading frame simulating the structure and rigidity of the rolling roller and travel adjusting pads. The integration testing control system comprises a hydraulic power station, a hydraulic control valve stand (comprising abuilt-in pressure sensor), a high-speed closed loop controller PLC, a data collecting device PDA, dedicated test control software (for open-loop control and closed-loop control of start friction force under load or no load, hysteresis, step response, frequency response and the like) and data collection and analysis software.

Description

technical field [0001] The invention belongs to the technical field of metallurgical equipment, and relates to a simulated loading and integrated testing system and method for a hydraulic roll bending device of a strip mill. Background technique [0002] The modern strip rolling production line is used for high-efficiency continuous strip product production. In order to obtain a good shape for the produced strip products, a hydraulic roll bending system is widely configured on the finishing rolling unit of the production line as a key equipment / subsystem The advanced hydraulic roll bending system is the most basic, flexible and effective method to improve the shape of the plate. The system is combined with other shape control methods to realize the convexity, straightness, wedge shape and camber of the head of the strip product, etc. Shape quality control and continuous stable production. Therefore, the characteristics and quality of the hydraulic roll bending system itself...

AI Technical Summary

Problems solved by technology

[0005] At present, during the factory test and acceptance of the hydraulic roll bending hydraulic cylinder, some tests under no-load conditions such as action and pressure test can be carried out. In the case of parts such as rolls and rolling mill arches, it is impossible to simulate real working conditions. On the other hand, there is no suitable loading test device and control system for the manufacturing plant

Therefore, the hydraulic roll bending hydraulic cylinder can only be tested online after the user’s on-site installation and debugging. Once the hydraulic roll bending hydraulic cylinder and the hydraulic servo control valve table are found to be unable to meet the performance requirements, they need to be disassembled and returned to the factory for rectification, which costs a lot of money. A large number of construction cycles and increased investment costs

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