Testing device and method for hydraulic proportional electromagnetic valve of engineering machinery

Abstract

The invention discloses a testing device and method for a hydraulic proportional electromagnetic valve of engineering machinery, and is used for testing the hydraulic proportional electromagnetic valve. The tested hydraulic proportional electromagnetic valve has multiple working conditions, and the multiple working conditions correspond to multiple working condition parameters; the testing device comprises an industrial control computer, a driving system, an oil supply system, an oil outlet adjusting system, a gas supply system and a gas outlet treatment system; the industrial control computer is configured to cut off the gas supply system and the gas outlet treatment system when the oil supply system and the oil outlet adjusting system are controlled to be connected, and cut off the oil supply system and the oil outlet adjusting system when the gas supply system and the gas outlet treatment system are controlled to be connected. According to the testing device and method, testing of hydraulic proportional electromagnetic valves of various structures and performances is achieved, an auxiliary effect on research, development and testing of the hydraulic proportional electromagnetic valves of the engineering machinery is achieved, the research and development process is accelerated, meanwhile, residual test oil left in the tested proportional electromagnetic valves after testing can be subjected to cleaning and environment-friendly treatment, and the requirement for low emission is met.

Description

technical field [0001] The invention relates to the technical field of engineering machinery parts testing, in particular to a testing device and method for hydraulic proportional solenoid valves of engineering machinery. Background technique [0002] Engineering hydraulic system is a key component of construction machinery. With the development and improvement of electronic control application technology, construction machinery is digitized and the degree of automation is getting higher and higher. There are more and more various electric-hydraulic electronic control components. Hydraulic proportional electromagnetic Valves are one of the key control components. At present, the technical level of domestic infrastructure construction machinery has been greatly improved and the needs of market supply and demand. It turns out that this kind of hydraulic and electronic control proportional solenoid valve basically relies on imported foreign advanced countries. Many domestic res...

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Problems solved by technology

At present, the technical level of domestic infrastructure construction machinery has been greatly improved and the needs of market supply and demand. It turns out that this kind of hydraulic and electronic control proportional solenoid valve basically relies on imported foreign advanced countries. Many domestic research and development departments have set up projects for research and development. The various parts and components of the control proportional solenoid valve have high technical requirements and are difficult to process. After the assembly is completed, performance testing must be carried out. However, there is currently no test bench in China that can perform performance testing on hydraulic proportional solenoid valves with various structures and performances. It restricts the development and testing of hydraulic proportional solenoid valves, slows down the progress of research and development, and the current tests are all stopped at the stage of completion of the test. The test oil remaining in the proportional solenoid valve after the test is not cleaned up or recycled directly. This has a great adverse effect on the environment

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