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The hydraulic system is easy to implement directional control, centralized control, speed control, load control, program control and variable speed, especially with the development of computer technology, digital technology, electronic technology and communication technology, hydraulic technology has been developing rapidly. The hydraulic equipment is widely used in various fields, including paper, textiles, construction, water conservancy and hydropower, aerospace, metallurgy, mining and other industries. Hydraulic equipment, however, is whether the normal, reliable operation depends largely on the quality of the selection of hydraulic components. Therefore, in order to ensure the normal hydraulic equipment, reliable operation, it is necessary to test and analyze the performance of hydraulic components. With the development of computer hardware and software technology and computer-aided testing technology, especially the emergence of virtual instruments, performance testing of hydraulic components has gradually reached the level of computer-aided automated testing. However, most of the existing test system only on the performance of a hydraulic component testing, integration of the function of a single test system is not high, low efficiency, does not meet the functional requirements of the modern test. In this paper, the electro-hydraulic proportional Test Bed of Hebei University of Engineering and advanced virtual instrument technology to develop a set of comprehensive hydraulic component performance testing system for performance testing of hydraulic pumps, hydraulic motors and hydraulic valves. Specifically carried out in-depth research in the following areas: (1) describes the overall performance of the hydraulic component test system hardware and software resources. Hardware aspects of the composition of the hydraulic component performance testing system, sensors, data acquisition card, signal conditioning device selection and system anti-jamming measures; software the LabVIEW software features and functions, focusing on data acquisition boards and communication between LabVIEW software. (2) a careful analysis of the performance characteristics of hydraulic pumps, hydraulic motors, hydraulic valves, summarized the hydraulic pump, hydraulic motor, hydraulic valve characteristics, test methods and test formula designed hydraulic pump, hydraulic motor, hydraulic valve performance testing system loop. (3) a state-of-the-art virtual instrument technology guidance, the application graphical monitoring and control software LabVIEW to develop a hydraulic pump, hydraulic motor, hydraulic valve performance testing system. The system has a data acquisition, data processing, data analysis, real-time data display, curve display, data storage, data query and printout of test reports and user interface functions. (4) the application of the design of the test system performance of hydraulic pumps, hydraulic motors and hydraulic valve test, the test results show that: the test system is fully functional, not only to meet the accuracy requirements of the test, and the testing process is simple and convenient, to good effect. Design ideas and design method of this article is correct and feasible.
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