Comprehensive test platform for dynamic performance of hydraulic cylinder of engineering machine

Abstract

The invention discloses a comprehensive test platform for the dynamic performance of a hydraulic cylinder of an engineering machine. The comprehensive test platform for the dynamic performance of the hydraulic cylinder of the engineering machine comprises a test platform body, a hydraulic system and an electrical test control system. The hydraulic system comprises a drive system unit and a loading system unit. The drive system unit comprises a first hydraulic pump, a first filter and three liquid inlet valve banks. Oil outlets of the three liquid inlet valve banks are connected with an oil inlet of the tested hydraulic cylinder. The loading system unit supplies oil to a loading hydraulic cylinder. The electrical test control system controls all the valve banks of the hydraulic system according to feedback signals. According to the comprehensive test platform for the dynamic performance of the hydraulic cylinder of the engineering machine, a drive system, a loading system and a gas-liquid supercharging system which are independently arranged are used for meeting test and control needs under different loads and different working conditions; and the comprehensive test platform also utilizes the feedback signals to control the test process, when the oil pressure, the flow, the filter precision, the system temperature and other indexes are not at the normal level, the system gives out an alarm to remind people and stops, and therefore system operation reliability is guaranteed.

Description

technical field [0001] The invention relates to a hydraulic device, in particular to a hydraulic comprehensive test bench capable of testing the dynamic operating characteristics of a hydraulic cylinder. Background technique [0002] Hydraulic cylinders are actuators used to realize reciprocating linear motion, and are widely used in various mechanical systems such as construction machinery. Due to insufficient knowledge of the characteristics of hydraulic cylinders, the non-stationarity of the driving speed of hydraulic cylinders under low-speed conditions, that is, the crawling phenomenon, has always been an international problem that plagues engineers and technicians. The sliding guide rail assembly is an important functional part on the machine tool, and the machining accuracy of the machine tool is closely related to the characteristics of the guide rail. In the field of machine tools, it is not uncommon for machine tool positioning and tracking accuracy to be low due ...

AI Technical Summary

Problems solved by technology

In the field of machine tools, it is not uncommon for machine tool positioning and tracking accuracy to be low due to unclear understanding of the characteristics of the sliding guide system.

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