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A Coaxiality Measurement and Adjustment Method for Large-Span Hole System Machining

A technology of coaxiality measurement and adjustment method, which is applied in the direction of measuring devices, instruments, optical devices, etc., can solve the problems of axial deviation of bearing holes, etc., and achieve the effect of ensuring coaxiality

Active Publication Date: 2020-08-18
GUANGDONG UNIV OF TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] At present, there is no effective method to correct the coaxiality of the large-span hole system, which leads to the deviation of the axial direction of different supporting holes

Method used

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  • A Coaxiality Measurement and Adjustment Method for Large-Span Hole System Machining
  • A Coaxiality Measurement and Adjustment Method for Large-Span Hole System Machining

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Embodiment Construction

[0026] refer to figure 1 , the present invention is a method for measuring and adjusting the coaxiality of a large-span hole system processing, comprising a supporting cylinder 1, a boring cylinder 2 sleeved on the supporting cylinder 1, and driving the boring cylinder 2 to rotate around the supporting cylinder 1 and along the supporting cylinder 1. The drive for the movement of the drum 1.

[0027] There is a bearing assembly between the boring barrel 2 and the supporting barrel 1, and the bearing assembly includes sliding pairs such as deep groove ball bearings, linear guides, sliders and related parts to ensure that the boring barrel 2 rotates around the supporting barrel 1 and moves in the axial direction . Since this structure belongs to the existing design, it will not be repeated here.

[0028] Both ends of the support cylinder 1 are provided with adjustment frames 4, so that the upper and lower and front and rear positions of the support cylinder 1 can be adjusted, i...

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Abstract

The invention discloses a coaxiality measuring and adjusting method for large-span hole system machining. The coaxiality measuring and adjusting method comprises the steps of placing a laser source onthe single side of a supporting cylinder, ensuring that the reference optical axis projected by the laser source is collinear with the central axis of a hole to be machined; adjusting a regulating frame to enable a laser beam of the laser source to pass through the rotating center at one end of a boring cylinder; adjusting the regulating frame on the other side to enable the laser beam of the laser source to pass through the rotating center at the other end of the boring cylinder; repeating the above steps twice or more; terminating the adjustment when the laser projected by the laser sourcepasses through the rotation centers at the two ends of the boring cylinder at the same time; repeating the steps on other holes to be machined to complete the measurement and coaxiality adjustment ofa multi-hole system. According to the method, the rotation center of each boring cylinder and the reference optical axis can be ensured to be collinear, and the coaxiality of the whole large-span holesystem is finally ensured. The method is applied to the field of coaxiality measurement and adjustment of a large-scale ship propeller shaft.

Description

technical field [0001] The invention relates to the field of coaxiality measurement of a plurality of supporting holes of a propeller drive shaft of a large ship, in particular to a coaxiality measurement and adjustment method for processing a large-span hole system. Background technique [0002] The propeller drive shaft support seat of large ships has a large span, usually 100m. In order to support the propeller drive shaft, several support holes need to be spaced apart, and further support holes with a depth of 1m or more need to be machined, and between two adjacent support holes Usually the interval is about 30m. Whether the coaxiality of several support holes can be guaranteed during processing directly affects the working conditions and service life of the propellers of large ships. [0003] At present, there is no effective method to correct the coaxiality of the large-span hole system, which leads to the deviation of the axial direction of different bearing holes. ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01B11/27
CPCG01B11/27
Inventor 陈新李克天刘强周春强欧阳祥波冯丽李明
Owner GUANGDONG UNIV OF TECH
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