Novel automobile oil pump driving shaft and machining process thereof

Abstract

The novel automobile oil pump driving shaft comprises a main connecting shaft body, the middle of the outer side face of the main connecting shaft body is sleeved with an outer end, the bottom end of the outer end is fixedly connected with an inner arc-shaped joint, the outer side of the bottom end of the inner arc-shaped joint is sleeved with an end ring tooth, the bottom end of the inner arc-shaped joint is fixedly connected with a secondary connecting shaft body, and the secondary connecting shaft body is fixedly connected with an end ring tooth. The top end of the main connecting shaft body is fixedly connected with a limiting ring, and the top end of the limiting ring is in threaded connection with a limiting bolt joint through a screw hole. According to the novel automobile oil pump driving shaft and the machining technology thereof, in the using process of the driving shaft, the outer end is a streamline formed by combining the first-stage step end and the second-stage step end, resistance and abrasion consumption of the driving shaft in the rotating or moving process are reduced, meanwhile, the displacement length of the driving shaft is limited through the clamping effect of the limiting step end, and the service life of the driving shaft is prolonged. The condition of rotation deviation of the driving shaft is effectively avoided, and the actual rotation efficiency of the driving shaft is improved.

Description

technical field [0001] The invention relates to the field of automobile oil pump drive shafts, in particular to a novel automobile oil pump drive shaft and its processing technology. Background technique [0002] Oil pump is a light and compact pump, an oil pump with a housing made of aluminium-containing material and a movable molded part arranged in the housing, wherein the movable molded part At least partly made of a sinterable material comprising at least an austenitic iron-based alloy, and wherein the molding made of a sinterable material has a coefficient of thermal expansion of at least the housing 60% coefficient of thermal expansion. [0003] The traditional oil pump needs the drive shaft as the core to rotate. The drive shaft of the transmission is prone to wear during long-term rotation, and deviation may occur during the rotation process, thereby affecting the actual performance of the drive shaft. [0004] Therefore, we improve this and propose a new type of ...

AI Technical Summary

Problems solved by technology

[0003] The traditional oil pump needs the drive shaft as the core to rotate. The drive shaft of the transmission is easy to be worn when it rotates for a long time, and there may be deviation during the rotation process, which will affect the actual performance of the drive shaft.

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