Grinding method of rust on outer ring of automobile wheel bearing

Abstract

The invention discloses a polishing method for the outer diameters of outer rings of automobile hub bearings. The polishing method comprises the following steps that firstly, the multiple bearings and gaskets are sequentially arranged on the extension section of the output end of a motor in a staggered and sleeved mode; then by tightly screwing a nut, the multiple bearings and the gaskets are fastened between the nut and a limiting block; the motor is started, while the output end of the motor starts to rotate, an active gear drives a slave gear to force a rotating shaft to drive hairbrushes to begin to rotate, and the hairbrushes begin to polish and clean rust on the circumference walls of the bearings; after thrown away, the rust falls from a rectangular hole; a fan is started; and traction is produced on the rust in the rectangular hole on the lower portion of a supporting plate to drive the rust scattered in a cover body to quickly move into a storage box along with a guide pipe. The hairbrushes synchronously polish the multiple bearings, under the condition that the rotating week number of the output end of the motor is certain, the polishing progress of the multiple bearings is consistent, and thereby bearing scrapping caused by excessive local polishing of the outer circumference walls of the bearings is avoided.

Description

technical field [0001] The invention relates to a grinding tool, in particular to a method for grinding rust on the outer ring of an automobile hub bearing. Background technique [0002] The main function of the hub bearing is to bear weight and provide precise guidance for the rotation of the hub. It bears both axial load and radial load, and is a very important component. Traditional automobile wheel bearings are composed of two sets of tapered roller bearings or ball bearings. The installation, oiling, sealing and clearance adjustment of the bearings are all carried out on the automobile production line. This structure makes it difficult to assemble in the automobile production plant, high in cost, and poor in reliability. Moreover, when the automobile is maintained at the maintenance point, the bearing needs to be cleaned, oiled and adjusted. When the bearing is exposed to the outside, its outer circumference is prone to rust, which will further lead to corrosion or dam...

AI Technical Summary

Problems solved by technology

This structure makes it difficult to assemble in the automobile production plant, high cost, and poor reliability, and when the automobile is maintained at the repair point, the bearing needs to be cleaned, oiled and adjusted

When the bearing is exposed to the outside, its outer circumference is prone to rust, which will further lead to corrosion or damage of the bearing. In the prior art, the outer diameter is generally wiped with sandpaper one by one by manpower to remove rust, which is labor-intensive and time-consuming. And the appearance of the wiped place is prone to defects, and the probability of product scrapping is relatively high as a result.

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