Vehicle drive axle half shaft
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United States of America Patent
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Issued Date -
Jul 13, 2017
app pub date -
May 10, 2016
filing date -
Jan 7, 2016
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Abstract
A vehicle drive axle half shaft, which belongs to a half shaft used for a vehicle drive axle with an oil-lubricated structure, includes a shaft body (41) and bonding portions located at both ends of the shaft body (41), or includes a shaft body (41), a bonding portion located at one end of the shaft body (41) and a flange (43) located at the other end of the shaft body (41); a helical structure (8) is provided on an outer surface of the shaft body (41), and when the shaft body (41) rotates for driving a wheel hub (7) and a vehicle to move forward, a direction in which the helical structure (8) conveys lubricating liquid is toward one side of a main speed reducer (1). It has a simple structure and a novel design, and is conveniently manufactured, and may keep the amount of oil in various cavities stable, so as to ensure adequate lubrication of various components. Particularly, it has good effects on oil gas exhaustion and cooling of the wheel end mechanism (2), and effectively extends the service life of the drive axle system, thus being suitable for all oil-lubricated vehicle drive axle.
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