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A Combination Valve with Compensating Load Sensing Function of Oil Return Circuit

A load-sensitive, oil-return technology, applied in servo motor components, mechanical equipment, fluid pressure actuating devices, etc., can solve problems such as asynchronous work of multiple actuators, achieve high work efficiency and response performance, and improve efficiency , The effect of stable working performance

Active Publication Date: 2021-11-12
HEFEI UNIV OF TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is to provide a combined valve with the load-sensing function of oil return circuit compensation, which not only has the energy-saving characteristics of the load-sensing function, but also has a simple structure, good interchangeability, and high efficiency and economic benefits , to solve the problem of asynchronous work of multiple actuators in the state of flow saturation in the load sensitive system, reduce the energy waste caused by the simultaneous throttling of the inlet and outlet ports of the proportional directional valve, and improve the energy utilization rate of the hydraulic system; through the independent control technology of the inlet and outlet The adjustment of the pressure of the oil return circuit of the sensitive system enhances the stability of the actuator operation of the system

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  • A Combination Valve with Compensating Load Sensing Function of Oil Return Circuit
  • A Combination Valve with Compensating Load Sensing Function of Oil Return Circuit
  • A Combination Valve with Compensating Load Sensing Function of Oil Return Circuit

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Embodiment Construction

[0034] The preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, and the protection scope of the present invention can be more clearly defined.

[0035] see Figure 1 to Figure 3, a combination valve with the function of compensating the load sensitivity of the return oil circuit, including a multi-connected valve group, a supply oil circuit P, an oil return circuit T, a load-sensitive oil circuit LS, and the multi-connected valve group shares a unified supply oil circuit P, return oil circuit The oil circuit T and the load-sensing oil circuit LS, each valve group has an output oil port An and an output oil port Bn connected to the actuator, and the multi-connected valve group includes a first valve group 1 and a second valve group. Group 27, the third valve group, ..., the Nth valve grou...

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Abstract

The present invention disclosed a combination valve with the sensitive function of the load -loading load, including multi -link valve group, supply oil circuit P, oil return T, load sensitive oil circuit LS, multi -link valve group public unified supply oil circuitP. Oil Return T and Load Sensitive Oil Road LS. Each connected valve group has the same component and device composition and the same structural connection relationship.One -meter two -way two -way proportional valve, one -mellarly two -way dioxic fluid ratio valve, one -mellar two -way dioxic power proportional valve, one -connected pressure compensation valve, and one -connected oil circuit.The invention regulates the pressure of the load sensitive system through the independent control technology of import and export, so that the system has the energy saving characteristics of the load sensitive function, solving the problem of non -synchronization of multi -actor work in the saturation state of the load sensitive system, which reduces itThrough the throttling loss of the valve port, the system of the system performs stability.

Description

technical field [0001] The invention relates to a combined valve capable of independent control of the inlet and outlet oil circuits, in particular to a combined valve with the function of compensating the load sensitivity of the return oil circuit, which can be independently controlled. Background technique [0002] Hydraulic transmission and control technology is one of the key technologies of transmission and control in today's Industry 4.0 era, and countries around the world have attached great importance to hydraulic transmission and control technology. The hydraulic system is characterized by high power density, compact structure, good maneuverability and strong environmental adaptability, but its shortcomings are high installed power and low energy utilization. If it is empty, the working speed of the actuator is greatly affected by the change of the load size, and the work of multiple actuators is not synchronized under the state of flow saturation. [0003] The loa...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F15B13/02
CPCF15B13/021
Inventor 曾亿山黄河刘旺刘常海刘睿
Owner HEFEI UNIV OF TECH
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