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Control method of large-span high-precision hydraulic servo turntable

A technology of hydraulic servo and control method, which is applied to servo motors, fluid pressure actuation devices, fluid pressure actuation system components, etc. Low frequency of rocking motion, solve the effect of speeding

Pending Publication Date: 2021-03-12
JIUJIANG PRECISION MEASURING TECH RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to solve the problem of poor control effect caused by the poor synchronous performance of the hydraulic motors on both sides of the large-span hydraulic turntable, and at the same time effectively solve the speeding phenomenon caused by various situations of the turntable

Method used

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  • Control method of large-span high-precision hydraulic servo turntable
  • Control method of large-span high-precision hydraulic servo turntable
  • Control method of large-span high-precision hydraulic servo turntable

Examples

Experimental program
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Effect test

Embodiment Construction

[0019] Such as figure 1 As shown, the left and right sides of the large-span hydraulic servo turntable are symmetrically installed on the base, the hydraulic motor is installed symmetrically above the base, and high-precision absolute encoders are installed on the rotating shafts of the hydraulic motors on both sides. The device is installed to ensure that there is an original angle difference at the same position of the motors on both sides.

[0020] Such as figure 2 As shown, the angle signals of encoder 1 and encoder 2 enter the calculation circuit with FPGA as the core through the RS485 transceiver. In the calculation circuit, the angle measurement data is processed with digital anti-interference algorithm, and the processing results are divided into two channels. It is transmitted into the industrial computer RTX system through parallel data communication.

[0021] Such as figure 2 As shown, in the control program, the two different angle measurement signals are set ...

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Abstract

The invention relates to a control method of a hydraulic servo control system, which is mainly characterized in that aiming at the stable control of a large-span rotary table and the temperature requirement of a table body, a multi-path angle measurement and control analog quantity real-time comparison technology is provided, motors at two ends of a shaft are mutually monitored while being independently controlled, and the stable control of a hydraulic shaft can be realized; the dynamic performance is good, and meanwhile run-away slip can be effectively prevented; and the design of an oil source system considers a cooling loop, the motors can be effectively cooled after the temperature rises to a set value, and the influence of temperature rising on infrared testing is avoided.

Description

technical field [0001] The invention relates to a control method of a hydraulic servo control system, which belongs to the innovation of the control technology of the hydraulic servo system. Background technique [0002] As the key equipment of missile hardware-in-the-loop simulation test, the flight simulation turntable plays a very important role in the development process of the missile. Although the conventional electric five-axis turntable and other flight simulation turntables can meet the general test requirements, they are not suitable for the following two The performance of the hydraulic servo system is not as good as that of the hydraulic servo system: 1. The mechanical design of the turntable is a large eccentric structure due to the use requirements; 2. The tested product is sensitive to temperature, such as the test of the infrared composite seeker. The use of motor control on the structure turntable will cause temperature accumulation, which will affect the in...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F15B11/22F15B21/0423F15B21/08
CPCF15B11/22F15B21/08F15B21/0423
Inventor 梅许文董恒周宇友刘学强林亚儒周丰镭
Owner JIUJIANG PRECISION MEASURING TECH RES INST