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Friction coefficient detecting device

A detection device and a friction coefficient technology, which are applied in the field of friction coefficient detection devices and can solve the problems of small detection temperature range and the like

Pending Publication Date: 2018-08-24
NEWAY VALVE SUZHOU
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Therefore, the technical problem to be solved by the present invention is to overcome the defect that the detection temperature range of the friction coefficient detection device in the prior art is small, thereby providing a friction coefficient detection device with a large detection temperature range

Method used

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Examples

Experimental program
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Embodiment 1

[0044] Such as Figure 1-4 Shown is a specific implementation of a friction coefficient detection device, including a first friction test block 2 and a second friction test block 3 as a friction test unit, the first friction test block 2 and the second friction test block 3 to form a friction pair; the first friction test block 2 is fixedly installed on the base 1 connected to the anti-rotation support 12, the base 1 is provided with spherical protrusions, and the first friction test block 2 is provided with A spherical groove matched with the spherical protrusion, screws are evenly distributed around the first friction test block 2, and these screws fixedly connect the first friction test block 2 to the base and form an anti-rotation Structure; The second friction test block 3 is fixedly connected to the lower end surface of the valve stem 4 by pins and bolts, wherein the bolts are arranged at the center of the second friction test block 3, and the pins are evenly distributed ...

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Abstract

The invention provides a friction coefficient detecting device, the friction coefficient detecting device comprises a friction testing unit which comprises a first friction test block and a second friction test block forming a friction pair; a base which is fixedly provided with the first friction test block; a loading unit which is fixedly provided with the second friction test block and comprises a load torque unit and a load ratio pressure unit respectively applying a torque and a pressure to the friction testing unit; and a support unit which is connected between the base and the load uniting and is used supporting the loading unit; at least part of the support unit is configured into an extension part to increase a distance between the loading unit and the friction testing unit or into a thermal insulation structure. The loading unit is not affected by the temperature of the friction testing unit, and a sealing ring of the loading unit can work normally. The friction coefficient detecting device can normally detect under low temperature, normal temperature and high temperature environment, so that the range of the temperature detected by the friction coefficient detecting device is large.

Description

Technical field [0001] The invention relates to the technical field of friction coefficient detection, in particular to a friction coefficient detection device. Background technique [0002] A valve is a kind of pipeline accessory and a control component in a fluid conveying system. It is a device used to change the channel section and the flow direction, flow and pressure of the medium; sealing performance and operating torque are two important factors for the quality of a valve Parameters: For a long time, there has been no basic research on the friction coefficient of valve seal pairs. The design only sets an inherent friction coefficient based on experience, and has nothing to do with material, surface quality, contact pressure, temperature, etc. The measured torque value of the finally manufactured valve is far from the designed theoretical value. Considering the safety of pressure vessel equipment, a high safety factor is usually selected in the design, resulting in waste ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N19/02
CPCG01N19/02
Inventor 安晓虎徐涌丁城
Owner NEWAY VALVE SUZHOU
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