A method for monitoring the wear degree of a friction wheel
A friction wheel, wear degree technology, applied in the direction of measuring device, strength characteristics, test wear resistance, etc., can solve the problems of high installation accuracy, inability to measure, monitoring result error, etc., to achieve high reliability, simple structure, rigidity and so on. The effect of strong interference ability
Inactive Publication Date: 2017-02-22
JIANGNAN UNIV
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Problems solved by technology
The capacitive displacement sensor has a small measurement range, and it is difficult to install rotating parts; the eddy current sensor can only effectively monitor metal parts, and cannot measure non-metallic objects such as polyurethane or rubber; the ultrasonic displacement sensor has a large measurement error for short distances, and installation The precision requirement is high and it is easily affected by the working environment; the laser displacement sensor has strict requirements on the transparency of the measured object, and there are errors in the monitoring results of translucent materials such as polyurethane
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[0022] The specific embodiments of the present invention will be further described below in conjunction with the accompanying drawings.
[0023] Such as figure 1 As shown, the present invention includes three parts: an auxiliary wheel speed measurement module 36 , a driving wheel speed measurement module 37 and a signal processing and transmission module 38 , which are respectively installed at suitable positions of the field fixing bracket 10 . The installation position of the auxiliary wheel speed measurement module 36 is parallel to the friction wheel 2. Proper adjustment makes the auxiliary wheel 7 and the friction material layer 3 closely contact; the installation position of the driving wheel speed measurement module 37 is located above the friction wheel 2; the signal processing transmission module 38 is installed It can be adjusted according to the site conditions, based on the convenience of on-site display and connection of input signals. There are two types of ports...
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The invention provides a wear degree monitoring method applied to a friction wheel in a friction wheel transmission conveying system. A measuring system comprises an auxiliary wheel speed measuring module, a driving wheel speed measuring module and a signal processing and transmitting module, the auxiliary wheel speed measuring module is mainly composed of an elastic wheel fork capable of rotating along with fixed axis, an auxiliary wheel, a proximity switch and the like, elastic force enables the auxiliary wheel to closely contact with the friction wheel and rotate along with the same, and realtime thickness of the friction wheel can be acquired by calculating according to a relation that linear speeds of contact points are equal; the driving wheel speed measuring module is used when an on-site control system cannot provide rotating speed parameters of the friction wheel, and a basic principle for speed measuring of the driving wheel speed measuring module is that the proximity switch is used to calculate number of pulse signals within fixed time. The signal processing and transmitting module takes a controller as a core, processes and calculates rotating speed signals of the auxiliary wheel speed measuring module and the driving wheel speed measuring module and outputs the signals by means of switch value, standard current signals and serial port signals.
Description
technical field [0001] The invention relates to the technical field of friction wheel transmission, in particular to an automatic monitoring method and instrument for the wear degree of friction wheels on a conveying line. Background technique [0002] Friction wheel transmission is a mechanical transmission method that uses two wheels to directly contact or clamp a mobile platform, and press them together to generate friction to achieve power transmission. It has the advantages of simple mechanical structure, low transmission noise and convenient maintenance, and is widely used in machinery, textile, automobile and logistics industries. [0003] The structure of the friction wheel is generally a material with a large friction coefficient such as steel hub covered with leather, polyurethane or rubber. During long-term use, the thickness of the friction material on the outer layer of the friction wheel gradually decreases, and slippage and unbalanced transmission may occur. ...
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IPC IPC(8): G01N3/56G01N3/02G01B21/08
Inventor 王志国刘飞
Owner JIANGNAN UNIV