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Proportional electromagnetic valve multifunctional test loop

A technology of multi-functional testing and proportional solenoid valves, which is applied in fluid pressure actuation system testing, fluid pressure actuation devices, mechanical equipment, etc., can solve problems such as increased production costs, repeated purchases, and low utilization of equipment, achieving utilization The effect of high efficiency, convenient operation and low equipment investment

Active Publication Date: 2014-05-21
JAPHL POWERTRAIN SYST
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  • Summary
  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

[0003] Proportional valves are widely used with three-way valves and four-way valves. When testing hydraulic performance, specific test equipment is required for each valve design, which is likely to cause repeated purchases, increase production costs, and lower equipment utilization.

Method used

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  • Proportional electromagnetic valve multifunctional test loop
  • Proportional electromagnetic valve multifunctional test loop
  • Proportional electromagnetic valve multifunctional test loop

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Embodiment Construction

[0020] Such as figure 1 As shown, in the present invention, the main oil circuit of the oil source 15 passes through the flow sensor 2 and then is connected to the valve seat of the tested valve 13 through the I-type circuit formed by the second on-off valve 7, the third on-off valve 8, and the fourth on-off valve 9. P port, T port and oil return port; the A and B ports of the valve seat of the tested valve 13 are provided with a first on-off valve 6 for conduction, and at the same time, the fifth on-off valve 10 is connected to the flow control valve 4 and then leads to Oil return port; the tested valve 13 is connected with the PWM signal generator 14 .

[0021] The overflow pressure regulating valve 12 is connected in parallel with the main oil circuit. Between the oil source 15 and the flow sensor 2 are a main oil circuit pressure sensor 1 and a temperature sensor 11 . There are on-off valves and pressure sensors between the valve seats A and B ports of the tested valve 1...

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Abstract

The invention discloses a proportional electromagnetic valve multifunctional test loop. The proportional electromagnetic valve multifunctional test loop is characterized in that a main oil path of an oil source passes through a flow sensor and then is connected with an opening P, an opening T and an oil return opening of a valve seat of a tested valve through an H-type loop, wherein the H-type loop is composed of a second switching valve, a third switching valve and a fourth switching valve; a first switching valve for communication is arranged between an opening A and an opening B of the valve seat of the tested valve, is connected with a flow control valve through a fifth switching valve and then is communicated with the oil return opening; the tested valve is connected with a PWM signal generator. Due to the adoption of the structure, three-way and four-way proportional flow and the hydraulic performance test of a proportional pressure valve can be achieved through the proportional electromagnetic valve multifunctional test loop. The proportional electromagnetic valve multifunctional test circuit is convenient to operate, small in equipment investment and high in utilization ratio and has multiple test functions.

Description

technical field [0001] The invention relates to the field of hydraulic testing of proportional solenoid valves, in particular to a multifunctional test circuit of proportional solenoid valves. Background technique [0002] Proportional solenoid valves are widely used in petroleum, hydraulic, automotive and other fields, and are often used in high-precision control systems. There are many types of proportional valves, and the more commonly used ones are proportional flow valves and proportional pressure valves. In practical applications, the performance of the proportional solenoid valve is critical to the control accuracy and system stability of the control system. The performance of proportional solenoid valve is usually expressed in the form of hydraulic characteristic curve, so the hydraulic performance test of proportional solenoid valve becomes very important. [0003] Proportional valves are widely used with three-way valves and four-way valves. When testing hydrauli...

Claims

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Application Information

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IPC IPC(8): F15B19/00
Inventor 邵璠王震毛世文柯文艳李后良
Owner JAPHL POWERTRAIN SYST
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