A Simple Proportional Load Sensitive Hydraulic System

A load-sensitive, hydraulic system technology, applied in the field of hydraulic system to achieve the effect of convenient expansion

Inactive Publication Date: 2011-11-30
SHANGHAI SANY TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] However, for large-scale construction machinery with many auxiliary actions, such as crawler cranes, its auxiliary actuators often do not require simultaneous actions, but only need to control the speed. At this time, it is not necessary to use a load-sensitive application system

Method used

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  • A Simple Proportional Load Sensitive Hydraulic System
  • A Simple Proportional Load Sensitive Hydraulic System
  • A Simple Proportional Load Sensitive Hydraulic System

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Embodiment Construction

[0017] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0018] figure 1 A simple proportional load-sensing hydraulic system of the present invention includes a multi-way valve 1 , a proportional pressure compensation valve group 2 , a load-sensing pump 3 , an electric handle 4 , a controller 5 , and an actuator 6 . Wherein, the multi-way valve 1 is connected to one end of the proportional pressure compensation valve group 2 , and the load sensitive pump 3 is connected to the other end of the proportional pressure compensation valve group 2 . The controller 5 is respectively connected with the electric handle 4, the multi-way valve 1 and the proportional pressure compensation valve group 2, so as to control the operation of the whole system.

[0019] Specifically, the pressure oil port B of the load sensing pump 3 is connected to the oil inlet P of the proportional pressure compensation valve group 2, and the oil ...

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Abstract

The present invention provides a simple proportional load-sensing hydraulic system, which includes a multi-way valve, a proportional pressure compensation valve group, a load-sensing pump, an electric handle, a controller and an actuator, wherein the multi-way valve is connected to the proportional pressure One end of the compensation valve group, the load sensing pump is connected to the other end of the proportional pressure compensation valve group, and the controller is used to control the operation of the entire system. The simple proportional load-sensing hydraulic system of the present invention can effectively adjust the proportional speed when the load varies, and realize the on-demand provision of flow; and can expand and set the multi-way valve according to the needs of the system. Therefore, a simple, practical and conveniently expandable proportional load sensitive hydraulic system is provided.

Description

technical field [0001] The present invention relates to a hydraulic system, in particular, to a simple proportional load sensitive hydraulic system. Background technique [0002] Problems such as system heating, component wear, and oil deterioration caused by ineffective use of energy are key factors for hydraulic system failures. At the same time, unnecessary energy loss will also increase the cost of use and cause environmental pollution. Therefore, how to effectively utilize energy has always been a key issue in hydraulic systems. [0003] In addition, the current construction machinery hydraulic system mostly adopts throttling and speed regulation, and it is more common to use an open center multi-way valve to realize the system's median discharge, priority action and throttling speed regulation. This speed regulation method is easily affected by load changes, and the operating comfort is poor. Therefore, it is very necessary to keep the range of speed regulation unch...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F15B13/00
Inventor 汪云峰彭继文
Owner SHANGHAI SANY TECH
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