Intelligent wheel hub bearing unit

Abstract

The invention discloses an intelligent wheel hub bearing unit, which comprises a mandrel, an outer ring and a half shaft, wherein the outer ring is provided with an inner hole, the local part of the mandrel extends out of the inner hole of the outer ring, the mandrel and the inner hole of the outer ring are in rotating matching, the mandrel is provided with an inner hole, one end of the half shaft movably extends into the inner hole of the mandrel, one end of the half shaft is fixedly connected with a star-shaped sleeve through screw threads, the star-shaped sleeve is positioned in the inner hole of the mandrel, the star-shaped sleeve forms a plurality of straight groove passages, and the straight groove passages are parallel to the axial line of the half shaft. Correspondingly, a plurality of straight groove passages are also formed on the inner hole wall of the mandrel, the straight groove passages are parallel to the center line of the inner hole of the mandrel. Universal joint rolling bodies are placed between the corresponding straight groove passages of the inner hole of the mandrel and the star-shaped groove, the inner hole of the mandrel is clamped into the O-shaped ring, the half shaft passes through the O-shaped ring, the half shaft and the O-shaped ring are movably matched, the O-shaped ring is blocked at the inner end of the star-shaped sleeve, and a film type temperature/vibration acceleration sensor is arranged on the outer wall of the outer ring. The intelligent wheel hub bearing unit can realize the real-time monitoring, the warning can be realized when abnormality occurs, and the maintenance can be carried out in time.

Description

technical field [0001] The invention belongs to the technical field of auto parts manufacturing, in particular to an intelligent hub bearing unit. Background technique [0002] The main function of the hub bearing is to bear the load 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, which is extremely inconvenient for maintenance. The hub bearing unit is developed on the basis of standard angular contact ball bearings...

AI Technical Summary

Problems solved by technology

[0004] In order to overcome the defects that cannot be found in time when the existing hub bearing unit fails, the present invention proposes an intelligent hub bearing unit, which can monitor the state of the hub bearing unit in real time through the temperature and vibration sensors placed on it , once an abnormality occurs, it can call the police and repair the abnormal parts in time, thus avoiding the occurrence of major traffic accidents

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