Pump control type electrohydraulic actuator

An electro-hydraulic actuator and pump control technology, applied in pump control, liquid variable capacity machinery, mechanical equipment, etc., can solve the problems of unsuitable valve control system, no "lock" function, shock and vibration of hydraulic system, etc. Achieve the effect of simple structure, small size and smooth movement

Inactive Publication Date: 2008-08-06
陈岩
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The main problem of this kind of circuit is that in the process of frequent reciprocating movement, the hydraulic control check valve is frequently in the "on-off" state, which may cause shoc

Method used

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  • Pump control type electrohydraulic actuator

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Embodiment Construction

[0011] Now in conjunction with accompanying drawing, the present invention will be further described:

[0012] The technical scheme of the pump-controlled electro-hydraulic actuator of the present invention is realized in this way, a pump-controlled electro-hydraulic actuator, the remote control room is connected to the position controller 14 through the signal line, and the position controller 14 is connected through the signal line It is connected with the position sensor 1, the position sensor 1 is connected with the single head type oil cylinder 2, the two chambers of the single head type oil cylinder 2 are respectively connected with the two ends of the hydraulic lock 3 through pipelines, and the two ends of the hydraulic lock 3 are connected with the two-way pump 6 , the two ends of the two-way pump 6 are also connected with the left overflow valve 4 and the right overflow valve 5 respectively, and the two ends of the two-way pump 6 are respectively connected with the che...

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Abstract

The invention relates to a pump-control electro-hydraulic actuator, which comprises a position controller which is connected with a position sensor, the position sensor is connected with an expose head cylinder, two cavities of the expose head cylinder are respectively connected with the two ends of a hydraulic lock through a pipeline, the two ends of the hydraulic lock are connected with a two-way pump, a left relief valve, a right relief valve and a single valve, the other end of the check valves is connected and is connected with a fuel filter which is arranged in the oil box, the left relief valve and the right relief valve are connected with the oil box through the pipeline, an air filter and a liquid level thermometer are respectively arranged on the top portion and the side surface of the oil box, a distal control room is connected with a motor control unit through a wire, the two-way pump is connected with a motor, and the motor is connected with the motor control unit. The pump-control electro-hydraulic actuator leads the control room to adjust the motor control unit and adjust the rotating speed of the motor through a signal which is feedback to the position controller by a signal sensor, thereby adjusting the rotating speed of the two-way pump, achieving the changing of the two cavities of a hydro cylinder, and achieving the purpose of adjusting position. The pump-control electro-hydraulic actuator has low energy consumption, small volume, low cost and excellent control effect.

Description

technical field [0001] The invention relates to a two-way pump-controlled electro-hydraulic actuator, in particular to a pump-controlled electro-hydraulic actuator which realizes position control through hydraulic pump control, and belongs to the technical field of electro-hydraulic control. Background technique [0002] Valve control is widely used in the industrial field. With the vigorous advocacy of the conservation-oriented society, each system in the industrial field is reduced in volume, cost, and energy consumption as much as possible. [0003] There are two types of electro-hydraulic control systems: volume control and throttling control. The traditional view is that throttling control technology is used in small and medium power systems that require high dynamic response, while volume control technology is used in high power systems. The biggest disadvantage of the throttling control electro-hydraulic system is that there is a large throttling loss, the system ene...

Claims

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Application Information

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IPC IPC(8): F15B15/14F15B21/02F04B49/06
Inventor 陈岩戴忠义张文波刘海峰黄涛赵永洁
Owner 陈岩
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