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A logic control valve and hydraulic system

A logic control and hydraulic system technology, applied in the direction of fluid pressure actuators, servo motors, servo motor components, etc., can solve the problems of large power loss, energy waste, flow cannot be identified and matched according to working conditions, etc., to reduce power loss , the effect of quick switching

Active Publication Date: 2022-07-05
XCMG CONSTR MACHINERY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

At present, the flow rate input to the actuator valve cannot be identified and matched according to the working conditions, resulting in large power loss and energy waste

Method used

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  • A logic control valve and hydraulic system
  • A logic control valve and hydraulic system

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Embodiment Construction

[0037] The present invention will be further described below in conjunction with the accompanying drawings. The following examples are only used to illustrate the technical solutions of the present invention more clearly, and cannot be used to limit the protection scope of the present invention.

[0038] In the description of the patent of the present invention, it should be noted that the terms "comprising", "comprising" or any other variation thereof are intended to cover non-exclusive inclusion, in addition to those elements listed, and may also include not explicitly listed other elements out.

[0039] In the description of the patent of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner" and "outer" The orientation or positional relationship indicated by etc. is based on the orientation or positional relationship shown in the accompanying drawings, which is only for the convenience of des...

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Abstract

The invention discloses a logic control valve and a hydraulic system, comprising a first power source, a logic control valve, an executive valve, a relief valve and a second power source; the present invention integrates a reversing valve, a hydraulic control valve and a The reversing valve and the electromagnetic reversing valve can realize the rapid switching between large flow and small flow; by setting the relief valve, when a small flow is required, the power source two is unloaded, and the power source one continues to work; when a large flow is required, the Power source one and power source two merge. It can match the corresponding flow according to the actuator and provide the flow required by the actuator on demand, which can greatly reduce the power loss and achieve energy saving.

Description

technical field [0001] The invention belongs to the technical field of construction machinery, relates to a logic control valve, and also relates to a hydraulic system applying the logic control valve. Background technique [0002] At present, domestic and foreign construction machinery and equipment need to be equipped with a variety of actuators to meet different working conditions; and the flow required by various actuators is different. At present, the flow input to the executive valve cannot be identified and matched according to the working conditions, resulting in a large power loss and a waste of energy. SUMMARY OF THE INVENTION [0003] The purpose of the present invention is to overcome the deficiencies in the prior art, and to provide a logic control valve, which realizes rapid switching between large flow and small flow, and is suitable for various construction machinery equipment. [0004] In order to solve the above technical problems, the present invention ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F15B11/00F15B13/02
CPCF15B11/00F15B13/02F15B2211/20538F15B2211/20546
Inventor 杨娟谢朝阳张安民朱右东刘亚乔战战宋佳
Owner XCMG CONSTR MACHINERY