An intelligent hub bearing unit with adjustable axial clearance and its control method

Abstract

The invention discloses an intelligent hub bearing unit with adjustable axial clearance and a control method thereof. The intelligent hub bearing unit includes a flange inner ring, a flange outer ring, a first reinforcing ring, a second reinforcing ring, and a third reinforcing ring. ring, magnetic module, first to sixth pressure sensors, and magnetic control module; the magnetic module includes first to fourth permanent magnets, and first to fourth hybrid magnetic rings; first to fourth permanent magnets, and first The to the fourth hybrid magnetic rings correspond one-to-one and are all ring-shaped; the magnetic force control module adjusts and changes the magnetic force of the first to fourth hybrid magnetic rings according to the sensing data of the first to sixth pressure sensors, thereby adjusting the clearance. The invention can detect the axial clearance of the wheel hub bearing when the automobile is stationary, and adjust the axial clearance in time through magnetic control, so as to ensure that the wheel hub bearing works under a suitable working condition and prolong the service life of the automobile wheel hub bearing.

Description

technical field [0001] The invention relates to the technical field of hub bearings, in particular to an intelligent hub bearing unit with adjustable axial clearance and a control method thereof. Background technique [0002] Bearing clearance is very important to the operation of automobiles, and it is also one of the important performance indicators of automobile hub bearings. Appropriate bearing clearance can make automobiles run smoothly, reduce noise, and prolong the service life of bearings, so its research is very important and necessary. At present, the third-generation hub bearing units are used in the most vehicles on the market. Compared with previous generations of hub bearings, the third-generation hub bearings adopt preload technology with preload, reliable sealing, easy disassembly, large carrying capacity, and high integration. Advantages, but compared with the previous generations, the structure of the third-generation hub bearings is also more complicated, ...

AI Technical Summary

Problems solved by technology

At present, the third-generation hub bearing units are used in the most vehicles on the market. Compared with previous generations of hub bearings, the third-generation hub bearings adopt preload technology with preload, reliable sealing, easy disassembly, large carrying capacity, and high integration. However, compared with the previous generations, the structure of the third-generation hub bearings is also more complicated, so there are not many detection methods and devices available for the third-generation bearings on the market

At present, most bearing manufacturers still use manual measurement to measure the clearance of hub bearings. Manual measurement first needs to unload the hub bearing from the vehicle, and then perform manual or mechanical measurement, so there are low efficiency and large measurement errors. and other shortcomings

The process of manual assembly and testing of bearings is not conducive to the automation of the assembly of automobile hub bearing units, and also restricts the development of automation of automotive hub bearing testing

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