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Pressure-adaptive multi-channel equalizing valve

An adaptive, multi-channel technology, applied in the field of hydraulic valves, which can solve the problems of weak adaptability and inability to automatically apply pressure synchronization systems

Active Publication Date: 2017-10-31
BEIJING INST OF SPACE LAUNCH TECH +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the adaptability of the valve is weak, and it cannot be automatically applied to the synchronous system with sudden pressure changes.

Method used

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  • Pressure-adaptive multi-channel equalizing valve

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Embodiment Construction

[0027] The technical solutions of the present invention will be further described below in conjunction with the embodiments and the accompanying drawings. It should be understood that the specific embodiments described here are only used to illustrate and explain the present invention, and the protection scope of the present invention is not limited to the following specific embodiments.

[0028] First of all, it needs to be explained that the present invention aims to provide an adaptive multi-channel flow equalizing valve, which is applied in a synchronous system with sudden pressure changes. The feedback cavity of the diverter valve is connected, so that the oil pressure in the first oil chamber of each pressure reducing valve is kept consistent, and at the same time, the flow area of ​​each diverter valve port is always kept consistent during the sliding process of the plunger, so it can The flow rate of the oil flowing out of each diverter valve port is the same.

[0029...

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Abstract

The invention discloses a pressure self-adaptive multi-channel flow equalizing valve, which comprises a diverter valve, a pressure reducing valve and a load selector. The diverter valve comprises a diverter valve body provided with an oil inlet port of the diverter valve and at least two diverter valve ports, The plunger divides the inner cavity of the diverter valve body into the diverter valve oil inlet chamber and the diverter valve feedback chamber. The oil inlet of the diverter valve is connected with the oil inlet chamber of the diverter valve. The valve body slides, and the flow area of ​​each diverter valve port is always consistent during the sliding process of the plunger. The pressure reducing valve includes a pressure reducing valve body provided with a pressure reducing valve oil outlet, and a valve, and the number of the pressure reducing valve is the same as that of the diverter valve port; the first oil chamber of each pressure reducing valve is connected to a diverter valve port communicated, and the second oil chamber communicates with the feedback chamber of the diverter valve. The inner chamber of the selector valve body of the load selector communicates with the feedback chamber of the diverter valve. The multi-channel flow equalizing valve of the invention can be automatically applied to a synchronous system with sudden changes in pressure.

Description

technical field [0001] The invention relates to a hydraulic valve, in particular to a pressure-adaptive multi-channel equalizing valve. Background technique [0002] Flow equalizing valve, also called synchronous valve, is used in occasions where multiple hydraulic actuators need to move synchronously, so that multiple hydraulic actuators can still obtain roughly the same or proportional flow under the condition of uneven load, so as to realize the execution synchronous movement of the device. At present, flow equalizing valves, which use the principle of load pressure feedback to compensate for flow changes caused by load changes, are increasingly used in the field of hydraulic engineering. As the working conditions become more and more complex, such as the increase of load pressure difference and frequent changes of flow rate, etc., new challenges are brought to the design of flow equalizing valves used in speed synchronization systems. [0003] Common flow equalizing va...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F15B13/06F15B13/16
Inventor 崔家龙周黎高亚东蒙小苏刘洪波范虹李木李敏刘学慧文明
Owner BEIJING INST OF SPACE LAUNCH TECH