A method for measuring friction force of sliders on horizontal linear guides
A technology of linear guides and measurement methods, applied in force/torque/work measuring instruments, measuring devices, instruments, etc., to achieve the effects of fast measurement efficiency, high measurement result accuracy, and simple method
Active Publication Date: 2022-05-13
ZHEJIANG UNIV OF TECH
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Problems solved by technology
[0007] The purpose of the present invention is to solve the problem that the existing friction force measurement method is not suitable for the measurement of the friction force of the slider in the field of high-precision suspension, and provides a method and device for measuring the friction force of the slider on the horizontal linear guide rail , used to measure the friction force of the slider on the horizontal linear guide rail, and the measurement accuracy is very high, suitable for the friction measurement of the slider in the field of high-precision suspension
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[0014] The present invention will be further described below in conjunction with accompanying drawing:
[0015] Such as Figure 1~2 As shown, a friction measuring device for a slider on a horizontal linear guide rail includes a horizontal linear guide rail 1, a slider 2, a hanging rope 3, a weight 4, a pulley 5, and a pulley driving device, and the slider 2 is arranged on the On the horizontal linear guide rail 1 and can slide along the horizontal linear guide rail 1, the upper end of the hanging rope 3 is fixed on the slider 2, the lower end of the hanging rope 3 is connected to the weight 4, and the pulley 5 is arranged on the horizontal linear guide rail 1 directly below and the pulley 5 is attached to the hanging rope 3 at the initial position, and the pulley driving device is used to drive the pulley 5 to move linearly along the direction of the horizontal linear guide rail 1 .
[0016] The method for measuring the frictional force by using the device includes the follow...
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The invention discloses a method for measuring the friction force of a slider on a horizontal linear guide rail. A pulley is used to press a hanging rope and drive the hanging rope to move together. The line forms an included angle θ, and the horizontal component force of the hanging rope under the pressure from the pulley is Gsinθ; the control pulley moves along the direction of the horizontal linear guide rail, and when it reaches a certain value, the slider will follow the offset direction of the weight Do follow-up movement, record the net offset of the weight when the lower slider starts to slide, and calculate the angle θ′ between the hanging rope and the plumb line at this time, so as to calculate the impact of the hanging rope at this time. The horizontal component force Gsinθ' of the pressure of the pulley is equivalent to the friction value of the slider. The method of the invention is simple, can quickly measure the frictional force between the sliding block and its contact surface, has high measurement accuracy and fast measurement efficiency, and is suitable for measuring the frictional force of the sliding block in the field of high-precision suspension.
Description
technical field [0001] The invention relates to the field of measurement of frictional force, and more specifically relates to a method and device for measuring frictional force of a slider on a horizontal linear guide rail. Background technique [0002] Friction refers to the force that hinders the relative motion of objects. The direction of friction is opposite to the direction of relative motion (or relative motion trend) of objects. Friction is divided into three types: static friction, rolling friction and sliding friction. When the surface of an object slides, there is friction between the contact surfaces that hinders their relative motion, which is called sliding friction. The magnitude of the sliding friction is related to the roughness of the contact surface and the pressure. The greater the pressure, the rougher the contact surface of the object, and the greater the sliding friction. [0003] In the field of ultra-precision hanging, especially in the field of ha...
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IPC IPC(8): G01L5/00
CPCG01L5/00
Inventor 叶必卿袁智敏陈俊超
Owner ZHEJIANG UNIV OF TECH