Method for large spur gear profile deviation in-site measurement adopting precise core rod measuring head

A mandrel and probe technology, applied in the field of large-scale gear measurement, can solve the problems of low measurement efficiency, large gear inertia, poor measurement conditions, etc., and achieve the effect of improving measurement efficiency and reducing length

Inactive Publication Date: 2017-08-18
DALIAN NATIONALITIES UNIVERSITY
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Problems solved by technology

[0005] In order to solve the problems encountered in the measurement of large gears, such as difficult selection of measurement reference, large gear inertia, low measurement efficien

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  • Method for large spur gear profile deviation in-site measurement adopting precise core rod measuring head
  • Method for large spur gear profile deviation in-site measurement adopting precise core rod measuring head
  • Method for large spur gear profile deviation in-site measurement adopting precise core rod measuring head

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Embodiment Construction

[0029] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0030] This embodiment discloses a method of using a precision mandrel probe to measure the profile deviation of a large spur tooth in situ, specifically:

[0031] (1) Determine the measured tooth profile of the tested gear, and select a certain tooth profile of the tested gear as the measured tooth profile;

[0032] (2) Based on the end face of the ring gear and the base cylinder of the large gear, locate and install the precision mandrel probe. The gear to be tested is fixed, and the slider is moved. The mandrel probe enters the measuring tooth groove, and the mandrel probe The head is not in contact with the tooth profile. This position is called the tooth profile measurement zero position. The mandrel probe can move along a straight line that ...

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Abstract

The invention discloses a method for large spur gear profile deviation in-site measurement adopting a precise core rod measuring head, and belongs to the technical field of large gear measurement. The precise core rod measuring head and involute profile of a measured gear keep tangent contact at all times, and the core rod measuring head is moved parallelly in the direction of a straight line which is away from the axis of the measured gear and intersects with the axis of the measured gear. Under the constraint of the profile of the measured gear, the core rod measuring head generates a tiny rotation angle, a displacement and the rotation angle of the core rod measuring head are obtained through measurement, and a profile deviation of the measured gear is finally obtained through a solution. The method solves the problems such as a measurement reference selection difficulty, a large gear inertia and low measurement efficiency which are encountered in measurement of a large gear.

Description

technical field [0001] The invention belongs to the technical field of measuring large gears, in particular to a method for measuring the profile deviation of large spur gears in situ by using a precision mandrel measuring head. Background technique [0002] Gear measurement technology occupies a very important position in gear manufacturing. Without advanced detection technology and instruments, it is impossible to manufacture gears with excellent performance, high quality and high precision. Due to the characteristics of large modulus, large size and heavy weight of large gears, it is very difficult to accurately measure their machining accuracy. In addition, the weight and volume of the measuring device are very large, which not only makes it difficult to manufacture, install and adjust, but also has a very prominent problem of inertia in the measurement. Over the years, many scholars at home and abroad have conducted research in the field of large gear measurement, enri...

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Application Information

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IPC IPC(8): G01B21/20
CPCG01B21/20
Inventor 李文龙吴鑫辉邵强马庆龙
Owner DALIAN NATIONALITIES UNIVERSITY
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