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A wheel hub bearing swing grinding riveting pre-tightening force detection method

A wheel hub bearing and detection method technology, applied in the direction of force/torque/power measuring instrument, measuring force, measuring device, etc., can solve the problem of inaccurate pretightening force measurement, achieve the effect of improving measurement accuracy and detection accuracy

Active Publication Date: 2020-08-28
HUBEI NEW TORCH SCIENCE & TECHNOLOGY CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0008] Aiming at the deficiencies of the prior art, the present invention provides a detection method for the pre-tightening force of the wheel hub bearing pendulum roller riveting, which has the advantages of accurately measuring the pre-tightening force of the wheel hub bearing after riveting, and solves the problem of the pre-tightening force of the wheel hub bearing after riveting in the prior art. The problem of inaccurate tension measurement

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  • A wheel hub bearing swing grinding riveting pre-tightening force detection method
  • A wheel hub bearing swing grinding riveting pre-tightening force detection method
  • A wheel hub bearing swing grinding riveting pre-tightening force detection method

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Embodiment Construction

[0040] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the embodiments of the present invention. Obviously, the described embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0041] A wire cutting method for a hub bearing: the bottom surface 4 of the inner flange of the hub bearing is installed on a wire cutting machine tool through a magnetic table 5, and the wire is first cut along the flange of the outer flange 3 from top to bottom, and the cutting path is shown in Figure 1. After one side is cut, then the outer flange 3 of the wheel hub bearing is rotated 180°, and the other side is cut along the same path. After cutting, clean up the outer flan...

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Abstract

The invention relates to the technical field of wheel hub bearing pre-tightening force measurement methods, and discloses a wheel hub bearing swing grinding riveting pre-tightening force detection method, which comprises the following steps: 1, disassembling a riveted wheel hub bearing, cutting an outer flange of the riveted wheel hub bearing, removing a steel ball and the outer flange, and reserving an inner ring and an inner flange; and 2, symmetrically adhering two strain gauges below the shaft shoulder of the inner flange in the step 1, forming a strain gauge group by the two strain gauges, and forming a measuring circuit by the strain gauge group and a strain measuring instrument. According to the wheel hub bearing swing grinding riveting pre-tightening force detection method, a strain gauge does not need to be connected in the riveting process, and the problems that the strain gauge is likely to be loosened due to overlarge strain in the riveting process, and the measurement result is abnormal are solved; besides, the calibration is corrected by considering the influence of the friction force on the result, the strain caused by the lower axial force and the upper axial forceat the strain gauges separately is obtained through simulation, and a strain correction coefficient is introduced, so that the detection precision is improved.

Description

technical field [0001] The invention relates to the technical field of a method for measuring the pretightening force of a wheel hub bearing, in particular to a detection method for the pretightening force of a pendulum mill riveting of a wheel hub bearing. Background technique [0002] In the past two decades, with the development of the automobile industry, higher and higher requirements have been put forward for the lightweight, integrated and high reliability of automobile wheel bearings. The basic principle is: the rivet head is tilted at a fixed angle (usually 5°), the rivet head rotates while revolving, and feeds downward at the same time, so that the metal at the shaft end of the inner flange is plastically deformed, and the flanging is pressed tightly. The inner ring realizes the preload of the bearing; for automobile hub bearings, the size of the preload directly affects the clearance value of the bearing, and then affects the stiffness and life of the hub bearing;...

Claims

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Application Information

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IPC IPC(8): G01L5/00G01L1/22
CPCG01L1/22G01L5/0019
Inventor 葛海岸熊伟梅松于熙
Owner HUBEI NEW TORCH SCIENCE & TECHNOLOGY CO LTD
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