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Device and method for measuring sliding friction coefficient between ribbed belt wheels

A sliding friction coefficient and measuring device technology, which is applied to measuring devices, mechanical devices, instruments, etc., can solve the problems of high cost and achieve the effects of ensuring accuracy, increasing possibility, and increasing universality

Pending Publication Date: 2021-04-02
SOUTH CHINA UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The V-belt is in contact with the surface of the pulley on a circular arc. It is technically difficult to directly measure the friction force and normal pressure between the V-belt-pulley contact surface, and it takes a high cost in engineering practice.

Method used

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  • Device and method for measuring sliding friction coefficient between ribbed belt wheels
  • Device and method for measuring sliding friction coefficient between ribbed belt wheels
  • Device and method for measuring sliding friction coefficient between ribbed belt wheels

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0050] A kind of measuring device of sliding friction coefficient between V-ribbed belt-belt pulley that present embodiment provides, comprises test bench floor and the upright post 1 that is arranged on the test bench floor, pulley 8, V-ribbed belt fixed base 6, Motor 5, V-belt 9, two V-belt clamps 4, tension regulator 2 and two V-belt force sensors 3. It also includes a frequency converter 10 and a data acquisition system, and the data acquisition system includes a Somat data collector and a computer controller.

[0051]The column 1 includes an I-beam and a base, and mounting holes are processed on the base, and the column 1 is installed and fixed on the floor of the test bench through bolts and mounting holes. The I-beam is provided with an adjusting hole 101 for installing the fixed end of the tension adjuster 2 . In this embodiment, there are multiple adjustment holes 101, and they are arranged at equal intervals. Changing the installation position of the tension regulat...

Embodiment 2

[0061] It is basically the same as Embodiment 1, except that this embodiment also provides a method for measuring the coefficient of sliding friction between the belt back and the flat wheel by using the aforementioned measuring device. At this time, a flat wheel is fixedly arranged on the motor output shaft of the measuring device, and the belt back of the V-ribbed belt is in contact with the flat wheel for transmission.

[0062] A method for measuring the coefficient of sliding friction between the back of a V-ribbed belt and a flat wheel, comprising the following steps:

[0063] (1) Before the measurement, ensure that the indoor temperature and humidity are constant, fix the column 1, the V-belt fixed base 6, and the motor base 7 according to Embodiment 1, and intercept the V-belt 9 of appropriate length, and the two ends of the V-belt 9 They are respectively fixed on one end of two V-ribbed belt clamps 4 via bolts, and the other ends of the two V-ribbed belt clamps 4 are r...

Embodiment 3

[0074] It is basically the same as that of Embodiment 2, except that what is measured in this embodiment is the coefficient of sliding friction between the rib-wedge pulley of the multi-ribbed belt. At this time, the wedge wheel is fixed on the output shaft of the motor on the measuring device, and the belt wedge of the V-ribbed belt is in contact with the wedge wheel for transmission.

[0075] Embodiment 2 is the measurement method of the coefficient of sliding friction between the ribbed belt back-flat wheel, if the measurement object is the coefficient of sliding friction between the wedge-wedge wheel of the ribbed belt, the result obtained according to the measurement method of embodiment 2 is multiple Equivalent sliding friction coefficient between wedge and wedge-wedge pulley μ v , in order to obtain the actual sliding friction coefficient between the belt wedge and the wedge wheel, it should be converted, and the conversion formula is as follows:

[0076]

[0077] I...

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Abstract

The invention discloses a device and method for measuring the sliding friction coefficient between ribbed belt wheels, and belongs to the field of sliding friction coefficient measurement. Tension canbe measured, and the sliding friction coefficient between the ribbed belt wheels can be calculated through the wrap angle between the ribbed belt wheels. The measuring device comprises a stand column, a motor, a force sensor, aribbed belt clamp, a tension regulator, a base and a ribbed belt clamp. A to-be-tested belt wheel is rigidly installed on a motor shaft, and a motor drives a belt wheel fixed shaft to rotate. One end of the ribbed belt is fixed on the base, and the other end of the ribbed belt is fixed on the upright post; the tension regulator regulates the initial tension of the ribbed belt; the force sensor collects a real-time tension signal; and the sliding friction coefficient between the ribbed belt wheels is obtained according to the measured data. The device for measuring the sliding friction coefficient between the ribbed belt wheels is good in universality, wide in application range, simple in measuring method and accurate in result, and meets the requirement for measuring the sliding friction coefficient.

Description

technical field [0001] The invention belongs to the field of measuring the coefficient of sliding friction, in particular to a measuring device and method for the coefficient of sliding friction between a V-ribbed belt and a pulley. Background technique [0002] The coefficient of sliding friction refers to the ratio between the friction force and the normal pressure when the objects in contact with each other move relative to each other. The coefficient of sliding friction is the property of the object itself. The surface roughness, temperature, humidity and other factors of the contact surface of the object all have a certain influence on the coefficient of sliding friction. As an important technical parameter, the coefficient of sliding friction is often used to study nonlinear dynamic phenomena caused by friction. [0003] The sliding friction coefficient between the V-ribbed belt and the pulley is the ratio of the friction force and the normal pressure when there is re...

Claims

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Application Information

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IPC IPC(8): G01N19/02
CPCG01N19/02
Inventor 王红民蒋金华上官文斌
Owner SOUTH CHINA UNIV OF TECH