Drive-by-wire gear shifting actuator actuator, gearbox and automobile

Abstract

The invention discloses a drive-by-wire gear shifting actuator. The drive-by-wire gear shifting actuator comprises a shell, a driving motor, a first-stage speed-reducing and torque-increasing component and a second-stage speed-reducing and torque-increasing component, wherein the driving motor, the first-stage speed-reducing and torque-increasing component and the second-stage speed-reducing and torque-increasing component are arranged in the shell, the first-stage speed-reducing and torque-increasing component is connected to an output shaft of the driving motor, the second-stage speed-reducing and torque-increasing component at least comprises a worm and a grooving wheel, and the worm is provided with a transmission gear; the grooving wheel comprises a grooving wheel body connected with the transmission gear and a shaft sleeve which is connected with the grooving wheel body in a synchronous rotation manner and can be connected with a gearbox rotating shaft of a gearbox in a matched manner, and the driving motor is sequentially linked with the first-stage speed-reducing and torque-increasing component, the worm, the grooving wheel body and the shaft sleeve; and axial rotation of the worm is converted into vertical rotation, and the vertical rotation is perpendicular to the axial direction of the worm. The invention further discloses the gearbox and an automobile. According to the drive-by-wire gear shifting actuator, the gearbox and the automobile, the structure is compact and intensive, the arrangement space is saved, operation is stable, and the sound is small; and speed reduction and torque increase can be achieved, and larger torque loads are driven.

Description

technical field [0001] The invention relates to the field of automobile manufacturing, in particular to a shift-by-wire actuator, a gearbox and an automobile. Background technique [0002] With the development of passenger car technology, customers have higher and higher requirements for automation, technology and personalization of passenger cars. High-tech configurations are becoming more and more popular, and the development of shift-by-wire is advancing by leaps and bounds. Not only European and American models are equipped with high-tech shift-by-wire, but domestic brands are also equipped with shift-by-wire. [0003] Most of the shift-by-wire actuators currently on the market use a motor-driven push rod, and the push rod is connected to the rocker arm of the gearbox to promote the structure of the gear shift of the gearbox. [0004] The shift-by-wire actuator has the following technical problems: 1. The structure is complex and heavy; 2. The volume is large and unfavo...

AI Technical Summary

Problems solved by technology

[0004] The shift-by-wire actuator has the following technical problems: 1. Complex structure and heavy weight; 2. Large volume and unfavorable for space layout

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