Liquid Injection and Drainage Online Dynamic Balancing Technique for Grinding Wheel

doi:10.7652/xjtuxb201704001

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Liquid Injection and Drainage Online Dynamic Balancing Technique for Grinding Wheel

更新时间：2025-07-09

- Liquid Injection and Drainage Online Dynamic Balancing Technique for Grinding Wheel
- Vol. 51, Issue 4, Pages: 1-5+102(2017)
- 作者机构：
  
  西安交通大学机械制造系统工程国家重点实验室,西安,710049
- 作者简介：
- 基金信息：
- DOI：10.7652/xjtuxb201704001
  CLC： TH17
- Online First：10 April 2017，
  
  Published：2017
- 稿件说明：
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Liquid Injection and Drainage Online Dynamic Balancing Technique for Grinding Wheel[J]. 2017, 51(4): 1-5+102.
DOI：

Liquid Injection and Drainage Online Dynamic Balancing Technique for Grinding Wheel[J]. 2017, 51(4): 1-5+102. DOI： 10.7652/xjtuxb201704001.

摘要

为有效抑制磨削过程中由砂轮失衡引起的振动

提出了一种新的注排液式砂轮在线动平衡方法

并设计了平衡装置。通过控制注入平衡腔内的液体与计算排出平衡腔的液体

控制平衡腔内残余液体质量

进而利用残余液体提供合适的平衡校正量。分析平衡腔内液体的离心力与腔内液位半径的关系

建立动态注液模型。采用打靶法对排液用的短孔型节流阀进行参数标定

分析了影响节流阀参数的因素

建立了流量控制模型

实现了平衡腔中残余液体量的精确计算。动平衡实验结果表明

在砂轮转速为2 700 r/min时进行校正

使用注排液式砂轮动平衡方法

振动幅值下降达89.25%

验证了提出的在线动平衡方法的可行性和平衡效果

同时也表明该平衡方法具有持续的平衡能力

解决了现有注液式在线动平衡腔满而丧失平衡能力的问题。

Abstract

A new liquid injection and drainage online dynamic balancing method is proposed for reducing the unbalance vibration of the grinding wheel. A new balance device is also designed. The liquid in the balance chamber is controlled by evaluating the injection liquid and calculating the drainage to provide appropriate correction mass. A dynamic liquid injection model is proposed by analyzing the relationship between the centrifugal force and the radius of liquid level in the chamber. The parametric measurement of the short hole throttle valve in drainage is accomplished. A theoretical model for flow controlling is established to calculate the liquid in the balance chamber by analyzing the influence factor of the throttle valve. Balancing experiment shows that the unbalance response is reduced by 89.25% at 2 700 r/min

the effectiveness of the proposed method is also verified. The new balance method with continuous balance ability solves the problem that liquid injection in online dynamic balance chamber loses the balance ability due to full cavity.

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references

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