Automobile electronic control two-wheel and four-wheel drive switching clutch

Abstract

The invention discloses an automobile electronic control two-wheel and four-wheel drive switching clutch. The automobile electronic control two-wheel and four-wheel drive switching clutch comprises a half-long shaft, a mechanical wheel and a shift sleeve; and the shift sleeve is shifted by an electronic control shift fork assembly which comprises a machine shell, a motor, a worm, a duplicate gear, a first gear, a torsional spring and a second gear, wherein the motor, the worm, the duplicate gear, the first gear, the torsional spring and the second gear are installed in the machine shell. According to the automobile electronic control two-wheel and four-wheel drive switching clutch, the worm is driven by the motor to rotate and drives the duplicate gear to drive the first gear which drives the second gear through the torsional spring, and the second gear drives a rack which drives a shift fork; the shift fork sleeve is shifted by the shift fork to slide, so that the two states that the half-long shaft is sleeved with the shift fork sleeve, or the half-long shaft and the mechanical wheel are sleeved with the shift fork sleeve are achieved, thus the two-wheel and four-wheel drive states are switched, and the structure is simple; through the torsional spring, the energy storage function of the device is achieved, the half-long shaft or the mechanical wheel is prevented from breaking up by the shift fork sleeve, and the more reliable effect is achieved; and when the two-wheel drive state is switched, the mechanical wheel stops rotating, namely a front-driving axle main reducer transmitted with the mechanical wheel stops working, and noise and oil consumption of an automobile are reduced.

Description

technical field [0001] The invention relates to the field of clutches, in particular to an electronically controlled two-wheel drive and four-wheel drive switching clutch. Background technique [0002] There are three kinds of two-wheel drive and four-wheel drive switching devices commonly used in automobiles. One is the shaft clutch, also known as the wheel lock, the other is the transfer case, and the other is the automatic clutch. [0003] The shaft nose clutch is installed on the front axle so that the front differential gear is separated when not in use. The shaft nose clutch consists of a housing with internal splines and a tooth sleeve with both external splines and internal splines It is composed of a clip that toggles the spline sleeve, the spline inside the spline sleeve is connected to the constant speed drive shaft, and the clip toggles the gear sleeve to connect or separate the outer spline of the gear sleeve from the outer shell to realize the switching between...

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to provide an electronically controlled two-wheel drive and four-wheel drive switching clutch for automobiles, which solves the problems of complex manual switching mode operation, high fuel consumption and noise, and complex structure of the automatic switching mode of the existing two-wheel drive and four-wheel drive switching device

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