Accurate control method for buffer oil cylinder

A buffer oil cylinder and precise control technology, applied in the design characteristics of spring/shock absorber, spring, shock absorber, etc., can solve the problem of low adjustment accuracy, achieve high universality, ensure reliability, and facilitate popularization and application Effect

Active Publication Date: 2018-11-30
WUHAN MARINE MACHINERY PLANT
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to overcome the problem of low adjustment precision existing in the prior art, and to provide a precise control method of a buffer oil cylinder with high adjustment precision

Method used

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  • Accurate control method for buffer oil cylinder
  • Accurate control method for buffer oil cylinder
  • Accurate control method for buffer oil cylinder

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0047] A precise control method for a buffer oil cylinder, the end of the buffer oil cylinder 1 is provided with a damping rod 11, one end of the damping rod 11 is connected to the power output shaft of the servo motor 2, and the other end of the damping rod 11 It is fixedly connected with the oil cylinder damping adjustment cylinder 12 in the buffer oil cylinder 1, the power output shaft of the servo motor 2 is driven and matched with the oil cylinder damping adjustment cylinder 12 through the damping rod 11, and the oil cylinder damping adjustment cylinder 12 is provided with a piston cylinder 13 , the piston barrel 13 is provided with an oil cylinder piston 14 that slides with it, the inner wall of the oil cylinder damping adjustment barrel 12 is in contact with the outer wall of the piston barrel 13, and the oil cylinder damping adjustment barrel 12 is rotatably matched with the piston barrel 13, so A plurality of outer oil holes 15 are opened on the damping adjustment cyli...

Embodiment 2

[0060] Embodiment 2 is basically the same as Embodiment 1, and its difference is:

[0061] The speed judgment value X in the first step is 4 meters per second.

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PUM

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Abstract

The invention discloses an accurate control method for a buffer oil cylinder. Signal output ends of a high-position microswitch and a low-position microswitch are both in signal connection with a signal input end of a servo driver, a signal output end of the servo driver is in signal connection with a control end of a servo motor, a signal output end of a motor encoder of the servo motor is in signal connection with the servo motor, the servo driver is in signal connection with a controller, and the controller is in signal connection with a signal output end of a speed sensor on a load. The method includes: step one, load speed acquisition and control instruction sending; step two, servo motor rotation under PID control; step three, switch feedback control; step four, position shifting completion. High position shifting speed, high reliability and high position shifting accuracy are realized.

Description

technical field [0001] The invention relates to a precise control method of a buffer oil cylinder, which is particularly suitable for precisely controlling the damping of the buffer oil cylinder. Background technique [0002] Hydraulic cylinders with buffer devices are often used in the fields of machine tools, woodworking machinery, rubber machinery, steel equipment, injection molding machines, die-casting machines, marine engineering or ships, mainly to prevent the cylinder piston from moving quickly to the end of the stroke. Possible impact damage to the front and rear end caps of the cylinder block. A large winch prevents the free fall of the load from causing the winch to fly and cause damage to the winch motor; thus, an adjustable buffer cylinder is designed to protect the winch motor by buffering the free fall of loads with different weights. [0003] If the gear is adjusted mechanically, on the one hand, the efficiency of gear adjustment is low, and on the other han...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16F9/50F16F9/512F16F9/34
CPCF16F9/34F16F9/50F16F9/512F16F2230/08F16F2230/18
Inventor 侯志岩杨传国周驰万志辉董新营
Owner WUHAN MARINE MACHINERY PLANT
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