A hydraulic pump flow test device

Abstract

The utility model discloses a hydraulic pump flow test device, which comprises a hydraulic pump to be tested, a motor, a test bench, a hydraulic system and a circuit system, wherein the hydraulic system consists of a hydraulic source, a hydraulic pump oil suction circuit, and a hydraulic pump oil pressure circuit. , Hydraulic pump drain oil circuit, oil return circuit, the circuit system includes flow sensor, PLC, measurement and control computer. It is characterized in that a three-position four-way electromagnetic reversing valve is installed on the oil return circuit of the hydraulic system to realize the switching test of the outlet flow of the hydraulic pump and the oil return volume of the casing; the pulse output flow sensor is used instead of the voltage output flow sensor to realize instantaneous Test the flow value and oil volume in a certain period of time; use the PLC with high-speed counter function instead of the A / D acquisition card to collect the flow data of the flow sensor; the device is easy to use, complete in test items, and cost-effective, and has a good application and Promote prospects.

Description

technical field The invention relates to the technical field of hydraulic pump flow testing, in particular to a hydraulic pump flow testing device. Background technique The hydraulic system has the advantages of large power-to-mass ratio, simple control and adjustment, stable movement, easy to realize overload protection, self-lubricating and small wear between components, so it is widely used in military fields such as aviation, ships, and weapons. . The hydraulic system is mainly composed of power components, actuators, control components, auxiliary components and hydraulic oil. As the power component in the hydraulic system, the hydraulic pump is one of the most important components of the hydraulic system. The performance of the hydraulic pump directly affects the accuracy, stability and reliability of the output pressure and flow of the hydraulic system. The hydraulic pump test mainly refers to the test of the working performance of the hydraulic pump during deliver...

AI Technical Summary

Problems solved by technology

The purpose of the present invention is to overcome the deficiencies of the above-mentioned prior art, and provide a hydraulic pump flow test device, which mainly solves the problems of the existing hydraulic pump flow test device, such as inconvenient use, easy leakage when switching pipelines, and can only test instantaneous flow value, the flow sensor is easily damaged by impact for a long time, the price is expensive, and the cost performance is not high.

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