A dual-channel electro-hydraulic servo valve life test and testing device

An electro-hydraulic servo valve, life test technology, applied in valve device, measuring device, mechanical valve test and other directions, can solve the problem of low utilization rate of life test bench, improve oil passing efficiency, improve utilization efficiency, and high control accuracy Effect
CN111059321BActive Publication Date: 2021-11-19AVIC NANJING SERVO CONTROL SYST CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
AVIC NANJING SERVO CONTROL SYST CO LTD
Publication Date
2021-11-19

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Abstract

The invention belongs to the technical field of mechanical engineering and discloses a life test and a test device for a two-way electro-hydraulic servo valve. The device includes: valve core, valve sleeve, shell, reset spring, plug, servo valve for control, test product A, test product B; there is a core cavity in the valve core; 6 valve sleeves are arranged in sequence in the axial direction. The bottom surface of each ring groove is provided with four symmetrical ports; the ring groove and the corresponding housing ring groove form an annular channel. Compared with the traditional life test device, it has the advantages of high test efficiency, simultaneous life test and performance test, and flexible switching of the test states of the two test products; the automatic switching of the states of the two test products can be realized by using the servo valve for control, which has the advantages of simple structure, The advantages of convenient operation and high reliability.
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Description

technical field

[0001] The invention belongs to the technical field of mechanical engineering, and relates to a life test and testing device of a two-way electro-hydraulic servo valve. Background technique

[0002] Since the traditional electro-hydraulic servo valve life test device can only conduct life tests on a single test product, the utilization rate of the test bench is low, and with the increasing demand for electro-hydraulic servo valves such as aircraft and missiles, the reduction in The life test cost of the servo valve and the improvement of the test efficiency have become urgent problems to be solved; in the life test process, the performance index of the electro-hydraulic servo valve can be tested without disassembling the test product has become the focus of attention in the field of electro-hydraulic servo valve testing . In order to overcome the shortcomings of the low utilization rate of the traditional electro-hydraulic servo valve life test bench, a devi...

Claims

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