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Speed ​​switching valve with check valve

A technology of speed switching and one-way valve, which is applied in the direction of servo motor components, mechanical equipment, fluid pressure actuators, etc., can solve the problems of low mechanical efficiency of hydraulic motors, improve mechanical efficiency, reduce structural complexity, and simplify layout structure effect

Active Publication Date: 2020-03-31
WUHAN MARINE MACHINERY PLANT
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In order to solve the problem of low mechanical efficiency of the hydraulic motor caused by the existing hydraulic valve, the embodiment of the present invention provides a speed switching valve with a check valve

Method used

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  • Speed ​​switching valve with check valve
  • Speed ​​switching valve with check valve
  • Speed ​​switching valve with check valve

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Embodiment Construction

[0039] In order to make the object, technical solution and advantages of the present invention clearer, the implementation manner of the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0040] An embodiment of the present invention provides a speed switching valve with a one-way valve, which is suitable for being installed in a motor controller. figure 1 is a schematic structural diagram of the first state of a speed switching valve with a check valve provided by an embodiment of the present invention, figure 2 It is a schematic structural diagram of the second state of a speed switching valve with a one-way valve provided by an embodiment of the present invention, figure 1 The first state of the speed switching valve in is the state when the speed switching valve is closed. At this time, the hydraulic motor is in a high-speed working condition. figure 2 The second state of the speed switching valve in is the state...

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Abstract

The invention discloses a speed switching valve with a one-way valve and belongs to the technical field of mechanical control. The speed switching valve with the one-way valve is inserted into a hydraulic motor controller shell and comprises a first one-way valve assembly, a second one-way valve assembly and a switching valve assembly, wherein the first one-way valve assembly comprises a first valve cover, a first valve element and a first spring; the second one-way valve assembly comprises a second valve cover, a second valve element, a second spring and a spring seat; and the switching valveassembly comprises a switching valve element and a switching valve cover. The speed switching valve and the second one-way valve assembly are arranged in the first valve cover of the first one-way valve assembly in series, so that the structure of a hydraulic valve is simplified and the mechanical efficiency of the hydraulic motor is improved.

Description

technical field [0001] The invention relates to the technical field of mechanical control, in particular to a speed switching valve with a check valve. Background technique [0002] The speed switching valve is a hydraulic valve that realizes the change of the size and displacement of the hydraulic motor, which can maximize the working efficiency of the hydraulic motor and reduce energy consumption. The check valve is a pressure valve that restricts the one-way flow of fluid. Usually, the hydraulic motor A speed switching valve and a one-way valve are installed on the hydraulic motor to control the oil on the hydraulic motor. [0003] In the existing hydraulic motors, the check valve and the speed switching valve are usually designed as separate hydraulic valves, and correspondingly, independent valve holes need to be designed in the hydraulic motor controller. [0004] In the process of realizing the present invention, the inventor finds that there are at least the followi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F15B13/02
CPCF15B13/021
Inventor 威力旺方敏洪威赵天梁
Owner WUHAN MARINE MACHINERY PLANT