Method for detecting surface contact area between inner ring of tapered roller bearing and roller ball base

Abstract

The invention proposes a method for detecting a surface contact area between an inner ring of a tapered roller bearing and a roller ball base. The method comprises the following steps of using high-strength wear-resistant cloth coated with milled micro powder as abrasive cloth; selecting three standard tapered rollers and rotating ball bases of the three standard tapered rollers on the abrasive cloth for 1 to 2 cycles; placing the small end face of a holding frame on a workbench downwards, uniformly distributing big end faces of the three standard tapered rollers bonded with the milled micro powder in a window hole of the holding frame upwards, placing the small end face of the inner ring of the tapered roller bearing in the holding frame downwards, forming an inner component having only three tapered rollers, then reversing the inner component, pressing the outer ring of the tapered roller on the rollers, and rotating the outer ring for milling; and enabling the three standard taperedrollers bonded with the milled micro powder to rub against the inner ring. The method provided by the invention solves the measurement problem that the large rib of the inner ring of the tapered roller bearing contacts with the roller ball base in an inner ring large rib contact area.

Description

technical field [0001] The invention belongs to the technical field of grinding and detection of the inner ring of a tapered roller bearing, and proposes a detection method for the surface contact area between the inner ring of the tapered roller bearing and the base surface of the roller ball, which is mainly used for the large rib and the inner ring of the tapered roller bearing. Detection of the contact state of the roller ball base surface on the large rib surface of the inner ring. Background technique [0002] In tapered roller bearings, the position of the contact point between the large rib of the inner ring and the base surface of the roller ball is very important, and the surface contact point of the large rib of the inner ring is too close to the overrunning groove of the large rib of the inner ring , Stress concentration will occur on the edge of the overtravel groove during work, causing excessive temperature rise of the bearing and affecting the life of the bea...

AI Technical Summary

Problems solved by technology

Products with unqualified edge contact state will often have large bearing temperature rise and early failure after installation, and serious cases will cause users to return the product

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