Elimination of shafting errors in photoelectrical theodolites with standard-bearings

FENG Dong-yan; GAO Yun-guo; ZHANG Wen-bao

doi:10.3788/OPE.20111903.0605

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Elimination of shafting errors in photoelectrical theodolites with standard-bearings

Article | 更新时间：2020-08-12

- Elimination of shafting errors in photoelectrical theodolites with standard-bearings
- Optics and Precision Engineering Vol. 19, Issue 3, Pages: 605-611(2011)
- 作者机构：
  
  1. 中国科学院长春光学精密机械与物理研究所,吉林长春 130033
  2. 中国科学院研究生院,北京 100039
- 作者简介：
- 基金信息：
- DOI：10.3788/OPE.20111903.0605
  CLC： V556
- Received：20 August 2010，
  
  Revised：13 September 2010，
  
  Published Online：22 March 2011，
  
  Published：22 March 2011
- 稿件说明：
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冯栋彦, 高云国, 张文豹. 采用标准轴承的光电经纬仪轴系误差修正[J]. 光学精密工程, 2011,19(3): 605-611

FENG Dong-yan, GAO Yun-guo, ZHANG Wen-bao. Elimination of shafting errors in photoelectrical theodolites with standard-bearings[J]. Editorial Office of Optics and Precision Engineering, 2011,19(3): 605-611
冯栋彦, 高云国, 张文豹. 采用标准轴承的光电经纬仪轴系误差修正[J]. 光学精密工程, 2011,19(3): 605-611 DOI： 10.3788/OPE.20111903.0605.

FENG Dong-yan, GAO Yun-guo, ZHANG Wen-bao. Elimination of shafting errors in photoelectrical theodolites with standard-bearings[J]. Editorial Office of Optics and Precision Engineering, 2011,19(3): 605-611 DOI： 10.3788/OPE.20111903.0605.

摘要

为了满足对小型跟踪架低成本、短周期和高互换性的要求

提出了采用标准轴承轴系代替现有研磨轴系的轴系改造方法。分析了采用标准轴承后的轴系误差源

根据跟踪架的使用多为远距离探测跟踪等特点

给出变轴线晃动为轴线平移的消差方法。设计了水平轴系实验模型

采用p5级深沟球轴承进行实验测量

并用傅里叶谐波分析方法对数据进行了分析。实验结果表明:水平轴左右轴承安装时

轴承内圈径向跳动最大方向安装在同一方向时

轴系晃动最大误差为2.430;轴承内圈径向跳动最大方向相差180安装时

轴系晃动最大误差为6.126

说明第一种安装方法会使跳动误差同步同周期变化

从而较大地减少轴系晃动。实验结果验证了消差方法的可行性

采用高精度等级轴承并采用提出的消差方法可以满足一般中小型跟踪架的精度要求。

Abstract

In order to meet the requirements of a tracking gimbal for the lower cost

shorter manufacture periods and higher interchangeable property

a new way of shaft transformation by using standard-bearings to replace thrust bearings was proposed. The axis error sources of using standard-bearings were explained

then according to the principles and characters of the tracking gimbal

an error eliminating method to make the axis sloshing become parallel moving was given. Finally

an experiment model of horizontal axis was designed

and the error of axis adopting zero level deep groove ball bearings was tested and analyzed by the Fourier harmonic analysis method. The experimental results indicate that the maximum error of shafting sloshing has been reduced from 6.126 to 2.430

which proves the the feasibility of the proposed error eliminating method. It concludes that the higher level bearings and right fixing plans can meet the precision requirements of small-scale tracking gimbals.

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references

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