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Pulse digital flow control method and device for fluid system

A pulse digital, fluid system technology, applied in the direction of fluid pressure actuation device, fluid pressure actuation system components, mechanical equipment, etc., can solve problems such as incompatibility

Inactive Publication Date: 2007-10-03
HENAN UNIV OF SCI & TECH
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Problems solved by technology

This is not suitable for applications where the pulse equivalent or working speed of the actuator can be adjusted or changed during operation.

Method used

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  • Pulse digital flow control method and device for fluid system
  • Pulse digital flow control method and device for fluid system
  • Pulse digital flow control method and device for fluid system

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Embodiment Construction

[0041] As shown in Figure 1, the fluid transmission system adopting the device of the present invention includes an energy supply part, a switch valve, an electric-fluid pulse generator in the form of code, a fluid power element to be driven, a computer, etc.

[0042] The energy supply part provides continuous analog working fluid to the system, which is input into the electric-fluid pulse generator in the form of code through the switch valve, and the pulse digital flow output by it drives the digital movement of the fluid power element, and the The quantization unit of the pulse digital stream can also be adjusted according to the digital quantity D output by the computer, and the specific working process is as follows:

[0043] The switch valve is controlled by computer instructions to open or close. When it is necessary to adjust a certain fluid power element, the displacement required by the adjustment part of the element is first converted into the number N of pulse equi...

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Abstract

The present invention proposes new type of pulse digital flow in code form generated with one code formal electric-fluid pulse generator comprising one code formal fluid pulse generator and one electric pulse generator. The code formal fluid pulse generator generates n binary fluid pulse trains to fit with n two-position and three-way electromagnetic directional valves to output quantized pulse digital flow in the computer set and regulated binary digit form. In this water, the fluid medium in the fluid system is converted into truly digital fluid. Applying this kind of code formal pulse digital flow can control various kinds of hydrodynamic elements in digital form and perform digital setting and control on the fluid system. The present invention is significant in realizing digital control on hydrodynamic elements and constructing digital fluid system.

Description

technical field [0001] The invention belongs to the fluid transmission and control technology in the subject of mechanical engineering, and mainly relates to a pulse digital flow method for realizing digital control of a fluid system. Background technique [0002] Fluid transmission and control is a technology widely used in many fields of national economy. It is not only an effective transmission method, but also an important means of control. With the increasing development and popularization of computer technology, it is an important trend in the development of fluid technology to use computers to carry out real-time digital control of fluid components and fluid power systems. Over the years, people have done a lot of work on this, and many methods have been proposed and applied so far, and the pulse digital flow method is one of them. [0003] Chinese patent ZL 02 2 13827.7 announces a digital pulse digital flow transmission and control device for fluid systems; [00...

Claims

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Application Information

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IPC IPC(8): F15B21/12
Inventor 张志成
Owner HENAN UNIV OF SCI & TECH
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