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Helicopter transmission system concentricity measuring method based on monocular vision

A transmission system and monocular vision technology, which is applied to measurement devices, instruments, and optical devices, etc., can solve problems such as high working environment requirements and inability to meet the adjustment requirements of helicopter transmission systems.

Active Publication Date: 2021-09-14
NANJING UNIV OF AERONAUTICS & ASTRONAUTICS +1
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Problems solved by technology

However, due to the special assembly conditions of the helicopter engine, the commonly used digital measurement equipment such as laser tracker and laser radar cannot meet the adjustment requirements of the helicopter transmission system due to the high requirements on the working environment

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  • Helicopter transmission system concentricity measuring method based on monocular vision
  • Helicopter transmission system concentricity measuring method based on monocular vision
  • Helicopter transmission system concentricity measuring method based on monocular vision

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Embodiment Construction

[0040] The technical solutions in the embodiments of the present invention are clearly and completely described. Obviously, the described embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0041] 1. See Figure 1-5 , the invention provides a method for measuring concentricity of a helicopter transmission system based on monocular vision, comprising the following steps:

[0042] Step 1: Install the main reducer and tail reducer of the helicopter, and install the measurement target at the input end of the tail reducer;

[0043] Step 2: Install the medium reducer on the medium reducer support, and install the industrial camera at the output end of the medium reducer;

[0044] Step 3: Collect the measurement target image located at t...

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Abstract

The invention discloses a helicopter transmission system concentricity measuring method based on monocular vision, wherein a measuring toolmainly adopts industrial cameras, measuring targets is used as an auxiliary tool, the industrial cameras are arranged at the input end and the output end of a middle speed reducer of a helicopter, the targets are arranged at the output end of a main speed reducer, the input end of a tail speed reducer and a tail transmission shaft bearing mounting seat, and in a concentricity measurement process, the industrial cameras collect target images and correspondingly process, analyze and calculate the images, and then the concentricity of the transmission system is calculated. According to the helicopter transmission system concentricity measuring method based on monocular vision, the system adopts the high-resolution industrial camera as a measurement unit, so that the measurement precision is high, and the technical requirement of the model on concentricity adjustment of the transmission system is met; and the traditional mode of repeated measurement, manual reading and adjustment by adopting special gauges such as a level gauge and the like can be replaced, so that the measurement efficiency is higher.

Description

technical field [0001] The invention relates to a method for measuring the concentricity of a helicopter transmission system, in particular to a method for measuring the concentricity of a helicopter transmission system based on monocular vision, and belongs to the technical field of assembly pose measurement. Background technique [0002] The concentricity measurement of the helicopter transmission system is the process of checking and adjusting the position of the tail drive shaft and the middle reducer when the helicopter is assembled. Since the transmission system bears a huge force when the helicopter is running, the output end of the main reducer and the input end of the tail reducer The coaxiality with the middle reducer is of great significance to the power system of the helicopter. [0003] With the rapid development of the helicopter manufacturing industry, the development of digital measurement technology is becoming more and more mature. Due to its advantages of ...

Claims

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Application Information

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IPC IPC(8): G01B11/27
CPCG01B11/272
Inventor 李泷杲黄翔李根周蒯王德重孔盛杰季锐楼佩煌钱晓明宋允辉
Owner NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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