Friction testing device

A test device and skateboard technology, which is applied in the field of physical science, can solve problems such as experiments that cannot be done at small angles, and achieve the effects of compact structure, reduced error, and convenient operation

Inactive Publication Date: 2010-06-30
TONGJI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The hinge fulcrum is supported on the bottom of the slide plate, and the slide plate is connected to the frame through the hinge. At this time, the slide plate and the frame have formed a dead angle, and small-angle experiments cannot be done.

Method used

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Experimental program
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Embodiment Construction

[0026] The present invention will be further described below in conjunction with the embodiments shown in the accompanying drawings.

[0027] The friction test device of the present invention is mainly to carry out the following experiments to better understand the essence of tribology:

[0028] (1) Measure the coefficient of static friction of different materials by changing the inclination angle;

[0029] (2) Measure the kinetic friction coefficient of different materials by measuring the time interval between two points;

[0030] (3) When the height of the slider is large, it can demonstrate the overturning and sliding of the slider under different loads;

[0031] (4) It can demonstrate the pure rolling and rolling and sliding motion of the wheel on the inclined surface.

[0032] In order to improve the test accuracy, the present invention mainly includes the following two aspects: one is to effectively adjust the inclination angle of the skateboard; the other is to reali...

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PUM

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Abstract

The invention discloses a friction testing device, which comprises a frame, a sliding plate, a manual regulation system and a motor regulation system. One end of the sliding plate is articulated with the frame, namely the sliding plate is fixed on a sliding plate connecting seat which is connected with a rotating shaft by a flat key, the rotating shaft is vertically connected and fixed with the frame by a bearing, a worm-wheel shaft at a power output end of the motor regulation system and the manual regulation system is connected with the rotating shaft and can drive the sliding plate to rotate, and the rotating angle of the sliding plate is controlled in two manners of motor rapidity and manual fine adjustment, so as to effectively regulate the inclined angle of the sliding plate between 0 and 50 degrees. The sliding plate is also provided with an angle sensor which can monitor the inclined angle in real time and has high accuracy.

Description

technical field [0001] The invention belongs to the field of physical science, and relates to a mechanical device, in particular to a friction test device. Background technique [0002] The inclination angle of the slide plate of the existing friction experiment device is generally adjusted manually, and the inclination angle is measured with a protractor, and the error is large. Manual adjustment of the inclination of the skateboard uses the rotation of the screw to change the angle of the connecting rod of the screw bracket, so that the hinge fulcrum moves vertically, and the hinge fulcrum is supported on the bottom of the skateboard to adjust the inclination of the skateboard. Because the connecting rod of the screw rod bracket is fixed on the frame, there is a certain height, which causes a dead angle between the slide plate and the frame, so there are limitations in adjusting the inclination angle of the slide plate. That is to say, after the handwheel drives the screw...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G09B23/10
Inventor 韦林方明霞李福宇朱金龙刘五强
Owner TONGJI UNIV
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