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A bearing friction torque measuring tool

A technology for measuring tooling and friction torque, applied in force/torque/power measuring instruments, measuring devices, instruments, etc., can solve the problems of large measurement errors and achieve the effect of reducing measurement errors

Active Publication Date: 2021-06-01
LUOYANG BEARING RES INST CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a tool for measuring bearing friction torque to solve the problem in the prior art that the bearing is not subjected to axial force during the test and the measurement error is large

Method used

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  • A bearing friction torque measuring tool
  • A bearing friction torque measuring tool
  • A bearing friction torque measuring tool

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Experimental program
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Effect test

specific Embodiment 1

[0022] Such as figure 1 and figure 2 As shown, the measuring tooling includes a fixed base 14, and a bearing mounting seat 7 is installed in the through hole of the fixed base 14. On the inner wall of the through hole of the fixed base 14, a groove 16 penetrating along the axial direction of the fixed base 14 is provided. The outer peripheral surface of the bearing mounting seat 7 is provided with a convex tooth 15 adapted to the groove 16, and through the mutual blocking of the groove 16 and the convex tooth 15, the anti-rotation assembly between the fixed base 14 and the bearing mounting seat 7 can be realized , Moreover, the bearing mount 7 can move along the axial direction. In this embodiment, the through hole in the fixed base 14 is a stepped through hole, forming an upward stepped surface, and the pressure sensor 6 is press-fitted between the stepped surface and the bearing mounting seat 7 .

[0023] The bearing mount 7 has a mating surface with an interference fit w...

specific Embodiment 2

[0035] Such as figure 2As shown, the difference from Embodiment 1 is that in this embodiment, the fixed ring of the bearing is the inner ring 2 of the bearing, and the rotating ring of the bearing is the outer ring 1 of the bearing. The fixed rod 7 is interference-fitted in the inner ring 2, and the fixed rod 7 is assembled on the fixed base 6. The specific assembly method between the fixed rod 7 and the fixed base 6 can refer to the assembly of the fixed base and the bearing mounting seat in the first embodiment. Way. A rotating shaft 5 is arranged below the bearing, and a mounting seat 3 is fixed on the rotating shaft 5. The mounting seat 3 is fixedly installed with the outer ring 1, and a pressure sensor 4 is arranged between the inner ring 2 and the mounting seat 3. An axial force is applied to make the inner ring 2 move to an axial position, and the magnitude of the axial force can be measured by the pressure sensor 4 . A motor and a torque sensor are arranged on the r...

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Abstract

The invention provides a tool for measuring bearing friction torque to solve the problem in the prior art that the bearing is not subjected to axial force during the testing process, resulting in large measurement errors. The measuring tooling includes a bearing mounting seat for anti-rotation installation of the fixed ring of the bearing to be tested, and also includes a main shaft structure for driving the rotating ring of the bearing to be tested to rotate. The main shaft structure is provided with a torque sensor, which is characterized in that: The tooling also includes a force-applying structure for applying an axial force to the bearing to be tested. The measuring tooling also includes a fixed base, and the bearing mounting seat is set on the fixed base in an axially guided movement and circumferentially non-rotating manner. The fixed base and A pressure sensor for measuring the axial force is arranged between the bearing mounting seats. The pressure sensor will not rotate with the rotation of the bearing ring, reducing measurement errors. The invention makes the measurement process more conform to the actual working condition and reduces the measurement error by applying the axial force to the rotating ring of the bearing.

Description

technical field [0001] The invention relates to a bearing friction torque measuring tool. Background technique [0002] Bearing friction torque is an important performance index of bearings. In practical applications, different types of bearings are combined into a shaft system to meet the needs of working under different load types and speeds. Some bearings are used to bear axial force, and some bearings are used for To bear the radial force, the friction torque of the bearing under the force in a certain direction can be obtained through calculation or testing, and then the driving force required by the shafting can be obtained. [0003] The method for measuring bearing friction torque in the prior art is shown in the national standard GB / T 32562-2016. During measurement, one of the inner ring and the outer ring of the bearing is fixed and called the bearing fixed ring, and the inner ring and the outer ring are fixed. Another rotation in the ring is called a bearing rotat...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01L5/00
Inventor 谷运龙申志新张海鹏王健李斑虎吴易明
Owner LUOYANG BEARING RES INST CO LTD