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High-efficiency and energy-saving electro-hydraulic proportional system for boom bending machine

A high-efficiency energy-saving, electro-hydraulic proportional technology, applied in the direction of fluid pressure actuation system safety, fluid pressure actuation system components, mechanical equipment, etc., can solve problems such as low precision, large energy loss, and easy heating of the system

Active Publication Date: 2019-04-09
TIANSHUI METALFORMING MACHINE TOOL GROUP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The present invention solves the problems that the hydraulic control system of the existing domestic and foreign electro-hydraulic proportional synchronous bending machine has a large energy loss, the system is prone to heat, and the problem of low precision

Method used

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  • High-efficiency and energy-saving electro-hydraulic proportional system for boom bending machine

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Effect test

Embodiment 1

[0041] A high-efficiency and energy-saving electro-hydraulic proportional system for boom bending machines, including a high-efficiency double pressure compensation variable pump motor unit 2, an integrated proportional pressure direction function control block 6, a speed safety control block 17, a maintenance control block 27, and a maintenance oil pump machine 34. The high-efficiency dual pressure compensation variable pump motor unit 2 is connected to the integrated proportional pressure direction function control block 6, the maintenance control block 27 is connected to the maintenance oil pump 34, and the integrated proportional pressure direction function control block 6 , the speed safety control block 17 and the maintenance control block 27 are connected to each other. The integrated proportional pressure direction function control block 6 includes a first one-way valve group 3, a proportional pressure valve 4, a first overflow valve 5, a first two-position four-way ele...

Embodiment 2

[0043] A high-efficiency and energy-saving electro-hydraulic proportional system for boom bending machines, including a high-efficiency double pressure compensation variable pump motor unit 2, an integrated proportional pressure direction function control block 6, a speed safety control block 17, a maintenance control block 27, and a maintenance oil pump machine 34. The high-efficiency dual pressure compensation variable pump motor unit 2 is connected to the integrated proportional pressure direction function control block 6, the maintenance control block 27 is connected to the maintenance oil pump 34, and the integrated proportional pressure direction function control block 6 , the speed safety control block 17 and the maintenance control block 27 are connected to each other. The integrated proportional pressure direction function control block 6 includes a first one-way valve group 3, a proportional pressure valve 4, a first overflow valve 5, a first two-position four-way ele...

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Abstract

The invention provides an efficient and energy-saving electro-hydraulic proportional system special for a suspension-arm bending machine and relates to the technical field of hydraulic control systems. The efficient and energy-saving electro-hydraulic proportional system special for the suspension-arm bending machine comprises an efficient duplex pressure compensation variable pump motor set 2, an integrated proportional pressure direction function control block 6, a speed safety control block 17, a holding control block 27 and a holding oil pump machine 34. The efficient duplex pressure compensation variable pump motor set 2 is connected with the integrated proportional pressure direction function control block 6; the holding control block 27 is connected with the holding oil pump machine 34; and the integrated proportional pressure direction function control block 6, the speed safety control block 17 and the holding control block 17 are connected.

Description

technical field [0001] The invention relates to the technical field of hydraulic control systems, in particular to a high-efficiency and energy-saving electro-hydraulic proportional system for boom bending machines. Background technique [0002] The high-precision CNC cantilever forming machine is the necessary equipment for the bending and forming of the boom workpiece. This machine uses a step-by-step forming method. The steel plate is bent into different shapes and different lengths of the boom cylinder, and the closed welding process can be formed after the subsequent welding process. telescopic arm. The machine tool has high requirements for positioning accuracy and repeat positioning accuracy, and a high degree of automation. It puts forward higher requirements for high reliability of the hydraulic system, anti-eccentric load capacity, precise control of pressure and flow, and energy saving. How to realize the above key technical issues is the current The urgent probl...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F15B21/08F15B1/027F15B13/02F15B21/041F15B20/00
CPCF15B1/027F15B13/021F15B20/00F15B21/041F15B21/087
Inventor 张怀德刘民祥窦高强温霞刘海
Owner TIANSHUI METALFORMING MACHINE TOOL GROUP