A proportional valve servo valve detection system

Abstract

The invention discloses a detection system for proportional valves or servo valves. The detection system comprises a proportional valve / servo valve detector, wherein the proportional valve / servo valve detector can output a standard analog signal or direct driving current for a proportional valve / servo valve electromagnet, and has standard analog signal output and detection functions and a function of outputting direct current for a proportional electromagnet or a servo electromagnet; the proportional valve / servo valve detector comprises a main control chip, a driving current module and a power processing module; and the main control chip gives a test instruction to the tested proportional valve / servo valve, and receives valve core signals of the tested proportional valve / servo valve. The detection system has the characteristics of comprehensive test range, complete function, convenience in use, simple structure of an operation interface, high test and record precision, high reliability and safety and the like, and is applicable to detection and analysis of functions and properties of all the proportional valves or servo valves of a hydraulic system.

Description

technical field [0001] The invention belongs to the technical field of hydraulic pressure and discloses an all-round proportional valve servo valve detection system, which can be used for function and performance testing of all proportional valves and servo valves in a hydraulic system. Background technique [0002] As an important tool and means of hydraulic system design, debugging and fault diagnosis, testing technology has been paid more and more attention. The development of testing technology is inseparable from advanced testing tools and supporting conditions. Proportional valves and servo valves in the hydraulic industry, as core components, often require comprehensive testing of functions and performance. Currently, all proportional valve and servo valve test tools on the market have the following shortcomings: only proportional valves or servo valves with integrated amplifier boards can be tested , it is impossible to test the valve with an external amplifier board...

AI Technical Summary

Problems solved by technology

Proportional valves and servo valves in the hydraulic industry, as core components, often require comprehensive testing of functions and performance. Currently, all proportional valve and servo valve test tools on the market have the following shortcomings: only proportional valves or servo valves with integrated amplifier boards can be tested , it is impossible to test the valve with an external amplifier board; in addition, the test of the pilot-operated proportional valve and servo valve can only be completed on site. If the conditions are not available on site, the technician does not have a suitable power source for testing Work, the power source for offline testing work is generally only available in large laboratories, which also brings inconvenience to the testing work; Lubrication, the valve core is easy to be stuck, which leads to problems such as the effectiveness of the detection work

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