Hydraulic digital controller

A digital control and hydraulic technology, applied in the field of digital hydraulics, can solve problems such as limitation of solenoid valve response capability, system efficiency drop, and throttling loss, and achieve the effects of precise control, high output pressure, and simple structure

Inactive Publication Date: 2008-08-06
SHANGHAI UNIV
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  • Abstract
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AI Technical Summary

Problems solved by technology

[0002] The traditional throttling adjustment hydraulic circuit generally uses a hydraulic pump to continuously supply oil. The flow and pressure of the output oil are controlled through the throttling effect of the throttling device, which will inevitably cause throttling loss and reduce the system efficiency.
Although research in the field of digital hydraulics has made some progress in recent years, traditional hydraulic components are still used, throttling losses still exist, and digital control is limited to controlling solenoid valves, so it is limited by the response capability of solenoid valves

Method used

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Embodiment Construction

[0032] A preferred embodiment of the present invention is described as follows in conjunction with accompanying drawing:

[0033]Referring to Fig. 3, Fig. 4, Fig. 5, Fig. 6 and Fig. 7, the hydraulic digital control device includes a control mechanism 3 to control a controllable reversing valve 1 to connect the oil circuit P of the oil pump, the oil circuit T connected to the oil tank and The switching between the oil circuit A that connects the load, the control mechanism is a rotor 20 driven by a motor, and the controllable reversing valve 1 is a rotary three-way valve composed of a flow distribution member matched with the rotor 20 Road reversing valve; the rotary three-way reversing valve controls the oil circuit A, and the oil circuit P and the oil circuit T are interchangeably connected to the resonance cavity 14 of an adjustable resonance device 9 . The rotor 20, the rotary three-way reversing valve, the oil passage P, the oil passage T, the oil passage A and the resonan...

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Abstract

The invention relates to a hydraulic digital control device, which comprises a controlling mechanism, an oil circuit P, an oil circuit T and an oil circuit A, wherein the controlling mechanism controls a controllable reversing valve, the oil circuit P is communicated with an oil pump, the oil circuit T is communicated with an oil box, the oil circuit A is communicated with load, the controlling mechanism is a rotor which is driven by a motor, the controllable reversing valve is a turning type three-way switch valve which comprises a flow distribution component which is matched with the rotor, the turning type three-way switch valve controls the oil circuit A, the oil circuit P and the oil circuit T to exchange and is communicated with a resonant cavity of an adjustable resonance device. The hydraulic digital control device has simple structure and convenient adjustment, thereby increasing the system efficiency, achieving excellent binding of the digital control and a hydraulic device, proving a transformation device for digital hydraulic pressure in a real sense, and the hydraulic digital control device has a wide application prospect in next generation.

Description

technical field [0001] The invention relates to a hydraulic control device, in particular to a hydraulic digital conversion device, which can be used to realize the digital control of output oil pressure and flow, and is convenient to adjust, belonging to the technical field of digital hydraulic pressure. Background technique [0002] The traditional throttling adjustment hydraulic circuit generally uses a hydraulic pump to continuously supply oil. The flow and pressure of the output oil are controlled through the throttling effect of the throttling device, which will inevitably cause throttling loss and reduce the system efficiency. Although research in the field of digital hydraulics has made some progress in recent years, traditional hydraulic components are still used, throttling loss still exists, and digital control is limited to the control of solenoid valves, so it is limited by the response capability of solenoid valves. Contents of the invention [0003] The purp...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F15B13/02
Inventor 张国贤王桂河金健冀卫东
Owner SHANGHAI UNIV
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