Digital pressure regulating valve

A pressure regulating valve, digital technology, applied in the direction of fluid pressure actuation device, fluid pressure actuation system test, servo motor components, etc., can solve the problems of high labor intensity of test personnel, low degree of automatic operation, complex hydraulic system, etc. , to achieve the effect of preventing insufficient starting power, high degree of automatic operation, and high control precision

Pending Publication Date: 2018-02-09
BEIJING TIANMA INTELLIGENT CONTROL TECH CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The traditional test method needs to connect the unloading valve in the hydraulic system. The hydraulic system is relatively complex, and the traditional mechanical unloading valve adopts manual adjustment, which has the disadvantages of high labor intensity for testers, low test frequency, and low degree of automatic operation.

Method used

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  • Digital pressure regulating valve
  • Digital pressure regulating valve
  • Digital pressure regulating valve

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] figure 1 As shown, the digital pressure regulating valve mainly includes a main valve part 1, a pilot valve part 2, and an electromagnetic pilot valve 3.

[0031] like figure 2 As shown, the main valve part includes the main valve body 4, the main valve body 4 is opened with the main valve core chamber K1, the liquid inlet P, and the liquid outlet T, the main valve core chamber K1 is equipped with the main valve core 5, the main valve core 5. There are threaded holes in the inner processing, which is convenient for disassembly and assembly. The main valve core is provided with a return spring 6, which is in a compressed state. The lower end compresses the pilot valve core 5 to reliably seal with the sealing cone surface in the main valve body 4, and the upper end connects with the pilot valve body 7. At the same time, the main valve body 4 is provided with a main valve fluid hole A K2 and a main valve fluid hole B K3.

[0032] like image 3 As shown, the pilot valv...

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PUM

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Abstract

The invention discloses a digital pressure regulating valve. The digital pressure regulating valve comprises a main valve part, a pilot valve part and an electromagnetic pilot valve; the main valve part comprises a main valve body, and is provided with a liquid inlet, a liquid outlet and a valve element hole; a main valve element is placed in the valve element hole, and is internally connected with a return spring for controlling connection and disconnection of the liquid inlet and the liquid outlet; the pilot valve part comprises a pilot valve body, a liquid passing screw sleeve, a linear stepper motor and a pilot valve element string; and the electromagnetic pilot valve is fixed with a pilot valve body.

Description

technical field [0001] The invention relates to a digital pressure regulating valve, in particular to a digital pressure regulating valve for a hydraulic pump testing hydraulic system. Background technique [0002] Before leaving the factory, the hydraulic pump needs to complete various factory performance tests. It is necessary to complete various performance tests within the pressure range from zero pressure to 125% of the nominal pressure of the pump. This requires that the hydraulic system used for hydraulic pump testing can achieve reliable pressure regulation. , it is best to realize stepless voltage regulation. At present, the pressure regulating valves used in the hydraulic system for hydraulic pump testing are mostly manually operated, and the degree of automatic operation is low, and there are great safety hazards in the hydraulic pump testing process. [0003] Although some pressure regulating valves can realize remote automatic adjustment, they have disadvantage...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F15B13/02F15B19/00
CPCF15B13/021F15B19/00
Inventor 刘文超王伟牛剑峰韦文术李俊士周如林
Owner BEIJING TIANMA INTELLIGENT CONTROL TECH CO LTD
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