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Dynamic seal contact surface friction rotating torque measuring device

A technology of rotational torque and measuring device, which is applied in the direction of measuring device, torque measurement, power measurement, etc., can solve the problem that the contact bearing friction has a great influence, cannot meet the requirements of accurate measurement of friction and rotational torque of dynamic seal contact surface, and the stirring work of sealing medium Consumption of friction torque and other issues

Active Publication Date: 2021-03-12
HEFEI GENERAL MACHINERY RES INST
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  • Description
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AI Technical Summary

Problems solved by technology

This method is easy to operate, but the contact bearing friction has a great influence, and the stirring power consumption of the sealing medium in the sealing cavity has a certain influence on the friction torque of the contact surface
The above three measurement methods all have some deficiencies. They can neither meet the precise measurement requirements for obtaining the frictional torque of the dynamic seal contact surface, but also put forward higher requirements for measuring equipment such as sensors. Obviously, it is difficult to meet the current development of dynamic seal friction mechanism and The need for reliability studies

Method used

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  • Dynamic seal contact surface friction rotating torque measuring device
  • Dynamic seal contact surface friction rotating torque measuring device
  • Dynamic seal contact surface friction rotating torque measuring device

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Embodiment Construction

[0038] For ease of understanding, the specific structure and working method of the present invention are further described as follows:

[0039] Before the description, the following explanation is required: For the two-stage stepped hole, the cavity has two parts, the large-aperture section and the small-aperture section, and the hole port where the large-aperture section is located away from the small-diameter section forms the large-aperture end. ; Similarly, for the three-stage stepped shaft, the outer wall forms the small shaft diameter section, the middle shaft diameter section and the large shaft diameter section to distinguish each other.

[0040] On the basis of the above explanation, the specific implementation structure of the present invention is based on Figure 1-2 For example, its main structure includes a moving part 20, a floating measuring part 30 and a static part 10 arranged in sequence from inside to outside. For the convenience of expressing the three, he...

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Abstract

The invention belongs to the technical field of end face sealing, and particularly relates to a dynamic seal contact surface friction rotating torque measuring device. The device comprises a static part, a moving part and a floating measurement part; the moving part comprises a shaft body, and the shaft body is rotationally matched with the floating measurement part through the matching of the moving ring and the static ring; a fit clearance exists between the outer wall of the floating measurement part and the static part, and the fit clearance is vacuumized or filled with lubricating liquidor provided with an air film or forms a magnetic suspension clearance; and the device further comprises a measuring part capable of synchronously rotating with the floating measurement part, and one-way abutting fit capable of restraining the measuring part from generating the synchronous rotating action is formed between the action end of the measuring part and the sensing end of a sensing part.The device has the advantages of simplicity and convenience in measurement, easiness in implementation and convenience in operation, the influence of frictional resistance moment generated by externalfactors on a measurement result can be effectively avoided, and finally, the accuracy and the reliability of measurement data are ensured.

Description

technical field [0001] The invention belongs to the technical field of end face sealing, and in particular relates to a dynamic sealing contact surface frictional torque measuring device for research on sealing mechanism. Background technique [0002] The dynamic seal is a device used to prevent the working medium from leaking along the gap between the shaft body and the main engine casing. It is an important key basic component. It is widely used in various types of rotating machinery and dynamic equipment, directly or indirectly determining or affecting the performance of the main engine equipment. , efficiency and energy consumption. There is relative movement and sliding between the dynamic and static ring contact surfaces of the dynamic seal, and there is contact friction and wear, so there is also power loss. It is of great significance to measure the power consumption and rotational torque of the dynamic seal. The friction torque of the contact surface reflects the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01L3/20
CPCG01L3/205
Inventor 丁思云王永乐杨博峰李香刘杰李凤成姚黎明吴兆山蔡粤华郑国运沈宗沼吴萍张晓东
Owner HEFEI GENERAL MACHINERY RES INST
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