Multistation computer test system facing multitandem valves

Abstract

The invention discloses a multistation computer test system facing multitandem valves. The test system comprises a computer data processing system, a plurality of test stations formed by data acquisition systems, hydraulic systems, tested multitandem valves and sensors, and a 485 bus. The system can carry out various tests for the multitandem valves, each oil port is provided with a pressure sensor and a flow sensor, pressure and flow signals can be collected in the tests, the pressure and flow signals are converted into electric signals, after the electric signals are converted into digital signals through analog to digital conversion, the digital signals are converted into pressure and flow data through a single chip program to be stored into a data storage module and simultaneously displayed through a display module; and the computer data processing system reads the data stored in all the station data storage modules through the 485 bus, the data are written into a data base to be analyzed and processed, a report is generated, the various test stations can work simultaneously or independently without mutual interference. The multistation computer test system can provide rapid and effective computer-aided testing means for the multitandem valve testing.

Description

technical field [0001] The invention relates to the field of hydraulic valve testing, in particular to a multi-station computer testing system for multi-way valves. Background technique [0002] Multi-way valve is a key component used to change the on-off relationship of each oil circuit in hydraulic transmission and control, and its performance index is directly related to the quality of the entire hydraulic system. Each multi-way valve must be strictly tested for its parameters by various instruments before leaving the factory to check whether its performance meets the relevant index requirements. Only the multi-way valve that has passed the inspection can be shipped from the factory, and only in this way can the normal operation of the entire hydraulic system composed of it be guaranteed. Especially for new products, it is necessary to test whether the products meet all the requirements of the technical specifications through type tests before they are officially put int...

AI Technical Summary

Problems solved by technology

[0003] At present, most of the multi-way valve tests are done manually. The test data are measured by pressure gauges and flow meters, and are recorded manually. The test results are also analyzed manually. This test method is susceptible to human factors and automation. It is difficult to meet the quality control requirements of large quantities of parts due to the disadvantages of low degree and low measurement efficiency.

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