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Elastic rolling ring rolling friction real-time stress detection device and method

A rolling friction and detection device technology, applied in measuring devices, force/torque/work measuring instruments, instruments, etc., can solve the problem of contact force decline, affect the friction contact state and service performance of elastic rolling rings, and cannot detect the rolling of elastic rolling rings Real-time load and other issues, to achieve the effect of prolonging service life, simple structure and convenient processing

Active Publication Date: 2021-03-26
HENAN UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The known load in the current test is the initial load, which is determined by the geometric size of the elastic ring, the elastic modulus of the material, and the amount of compression. It can obtain the real-time electrical conductivity and real-time torque of the elastic rolling ring when it is rolling, but it cannot detect the rolling of the elastic rolling ring. real-time load
In the long-term service process, the elastic rolling ring has fatigue phenomenon, which leads to the gradual decline of the contact force, and finally affects the current-carrying friction contact state and service performance of the elastic rolling ring.

Method used

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  • Elastic rolling ring rolling friction real-time stress detection device and method
  • Elastic rolling ring rolling friction real-time stress detection device and method
  • Elastic rolling ring rolling friction real-time stress detection device and method

Examples

Experimental program
Comparison scheme
Effect test

specific Embodiment 1

[0046] Such as figure 1 As shown, the detection device in this embodiment specifically includes a rotating shaft 7, an inner ring 5, an outer ring 3, an X-direction universal ball support seat 8, an X-direction force measuring mechanism 1, and a Y-direction universal ball support seat. 6 and Y-direction force measuring mechanism 4.

[0047] Wherein, the rotating shaft 7 and the inner ring 5 are fixedly assembled together to form an active rotary member, the rotating shaft 7 is driven by a motor to rotate, and the outer peripheral surface of the inner ring 5 is provided with an outer ring groove for connecting with the elastic roller ring 2 to be tested. Rolling friction fit to form a friction pair.

[0048] The outer ring 3 is coaxially arranged at intervals outside the inner ring 5, the center of the outer ring 3 coincides with the center of the inner ring 5, and an inner ring groove is provided on the inner peripheral surface of the outer ring 3 for connecting with the elas...

specific Embodiment 2

[0056] The main difference from Embodiment 1 is that in Embodiment 1, the X-direction universal ball support seat is used to provide X-direction local support, and the Y-direction universal ball support seat is used to provide Y-direction local support, both of which are local point supports. In this embodiment, a top structure may also be used, and the top structure acts as a partial support to push and support the outer ring to provide point support.

specific Embodiment 3

[0058] The main difference between it and Embodiment 1 is that in Embodiment 1, the active rotating part includes a rotating shaft and an inner ring, which facilitates setting an outer ring groove on the inner ring, and at the same time, facilitates setting a torque sensor to detect the corresponding torque. In this embodiment, the active rotating part is a driving shaft, and the driving shaft is driven to rotate by a corresponding motor, and an outer ring groove can be provided on the outer peripheral surface of the driving shaft, so as to realize the rolling friction fit with the elastic rolling ring.

[0059] Embodiments of the real-time force detection method for the elastic rolling ring rolling friction provided by the present invention:

[0060] The detection method in this embodiment comprises the steps:

[0061] (1) Place the elastic rolling ring to be tested between the outer ring groove of the active rotary part and the inner ring groove of the outer ring arranged co...

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Abstract

The invention relates to an elastic rolling ring rolling friction real-time stress detection device and method, and the device comprises an active rotating part, an outer ring, an X-direction force measurement mechanism, an X-direction local supporting part, a Y-direction force measurement mechanism, and a Y-direction local supporting part. During use, an elastic rolling ring is correspondingly placed between the active rotating part and the outer ring, the corresponding local supporting part provides local support for the outer ring, the X-direction force measurement mechanism detects the X-direction acting force generated when the elastic rolling ring abuts against the outer ring, the Y-direction force measurement mechanism detects the Y-direction acting force generated when the elasticrolling ring abuts against the outer ring, and when the rotating shaft drives the inner ring to rotate, the elastic rolling ring is driven to revolve around the inner ring and rotate at the same time,the actual working state of the elastic rolling ring is simulated, and the real-time friction force and compression force borne by the elastic rolling ring are calculated according to the torque andacting force data collected synchronously. The detection device provided by the embodiment is simple in structure, and the friction force and the compression force borne by the elastic rolling ring inreal time in the rolling process can be conveniently detected.

Description

technical field [0001] The invention belongs to the field of rolling friction tests, and in particular relates to a real-time force detection device and method for rolling friction of elastic rolling rings. Background technique [0002] The conductive rotary joint is the only channel for electric energy transmission and electric signal transmission between moving parts, and it is widely used in high-end equipment such as radar, space solar sail panel drive mechanism, wind power pitch system, and control moment gyroscope. Its conductive part is formed by contacting conductive materials such as metal or carbon, and completes the current transmission during the rotating friction process, so it is called a current-carrying friction pair. [0003] The current-carrying friction pair is a "single point of failure" component, and its friction / conductivity is the bottleneck of the energy and signal transmission of the whole machine. The failure of friction and wear of the current-car...

Claims

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Application Information

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IPC IPC(8): G01L5/00
CPCG01L5/0061
Inventor 宋晨飞陈天骅逄显娟张燕燕王帅李家伟孙逸翔张永振
Owner HENAN UNIV OF SCI & TECH