Automobile motor assembly with double rolling bearing structure

Abstract

The invention discloses an automobile motor assembly with a double rolling bearing structure. The automobile motor assembly comprises a motor, a worm, a worm gear, and a reducing box for assembling the worm and the worm gear, wherein the motor comprises a motor output shaft and an electric drive component; the electric drive component drives the motor output shaft to rotate; the worm is arranged at a worm end of the motor output shaft; the worm gear and the worm are in drive connection; and the worm end of the motor output shaft is supported in the reducing body through two rolling bearings. The two rolling bearings are adopted and the radial clearance is very small, so that the worm and the worm end of the motor output shaft do not bend when the worm gear bears very high radial force, and the worm and the worm gear are always meshed on a node, thereby ensuring the transmission efficiency and improving the strength of the worm gear and the worm.

Description

technical field [0001] The invention relates to the technical field of automobile motors, in particular to an automobile motor assembly with a double rolling bearing mechanism. Background technique [0002] At present, most of the automotive motor components with worm gears and worms use one rolling bearing and one or two sliding bearings as the transmission support. The gap fit, so that when the motor is subjected to a large force, one end of the worm is unsupported and the worm shaft is bent. This bending will cause the meshing between the worm and the worm wheel to be different from the node, resulting in reduced transmission efficiency and increased heat generation, etc. In severe cases, it will also cause damage to the tooth surface of the worm. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide an automobile motor assembly with a double rolling bearing mechanism in view of the above-mentioned technical proble...

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Problems solved by technology

[0002] At present, most of the automotive motor components with worm gears and worms use one rolling bearing and one or two sliding bearings as the transmission support. The gap fit, so that when the motor is subjected to a large force, one end of the worm is unsupported and the worm shaft is bent. This bending will cause the meshing between the worm and the worm wheel to be different from the node, resulting in reduced transmission efficiency and increased heat generation, etc. In severe cases, it will also cause damage to the tooth surface of the worm

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