Frictional force measuring method and frictional force measuring device for sliding block on horizontal linear guide rail

A technology of linear guides and measuring methods, which is applied to measuring devices, force/torque/work measuring instruments, instruments, etc., to achieve the effects of fast measurement efficiency, high measurement result accuracy and simple method

Active Publication Date: 2017-02-22
ZHEJIANG UNIV OF TECH
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  • Abstract
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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 fr

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  • Frictional force measuring method and frictional force measuring device for sliding block on horizontal linear guide rail
  • Frictional force measuring method and frictional force measuring device for sliding block on horizontal linear guide rail

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[0014] The present invention will be further described below in conjunction with accompanying drawing:

[0015] like 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 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 following steps. First, t...

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Abstract

The invention discloses a frictional force measuring method for a sliding block on a horizontal linear guide rail. The frictional force measuring method includes that a pulley presses a hanging rope and drives the hanging rope to move together, the hanging rope receives the pressure from the pulley, an included angle theta is formed between the hanging rope and a plumb line, and the horizontal component of the pressure of the pulley to the hanging rope is Gsin theta; the pulley is controlled to move along the direction of the horizontal linear guide rail constantly, the sliding block moves along the offset direction of a weight when a certain numerical value is reached, the net offset of the weight when the sliding block starts to slide is recorded, an included angle theta' is formed between the hanging rope and the plumb line at the moment, the horizontal component of the pressure of the pulley to the hanging rope at the moment is calculated to be Gsin theta', and the force value is identical to the frictional force value of the sliding block. The frictional force measuring method has the advantages of simplicity, capability of rapidly measuring the frictional force between the sliding block and the contact surface thereof, high measuring result accuracy, high measuring efficiency and applicability to frictional force measurement of sliding blocks in the high-accuracy hanging field.

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...

Claims

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Application Information

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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
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