Front axle automatic meshing device of cross-country four-wheel-drive vehicle

Abstract

The invention discloses a front axle automatic meshing device of a cross-country four-wheel-drive vehicle, comprising a power transmission part composed of a front wheel hub, a knuckle and a front axle half shaft. The front axle automatic meshing device is characterized by also comprising an automatic hub locking device composed of a shell, a base, a gear and a return spring, wherein the right end of the front axle half shaft is connected with the base by virtue of a spline, the outer wall of the gear is provided with a gear cam which can rotate and move in the cam slot of the base on the outer wall of the left end of the base, the outer wall of the middle part of the base is connected with the inner wall of the shell in a 'KAN' (a radical in Chinese characters) shape by virtue of the spline; the left end of the return spring props against between a stop washer and the inside wall of the shell; and the shell is fixed on the front wheel hub by a screw rod. The gear is provided with a gear stop block which can stretch into the groove of the knuckle. The device provided by the invention has the advantages that a purely mechanical automatic control mechanism is adopted, thus the control convenience and reliability of a four-wheel-drive system are improved, the fuel economy of a cross-country vehicle is improved, the whole vehicle is compact in arrangement, the weight is light and the like.

Description

technical field [0001] The invention relates to automobile equipment, in particular to an automatic engagement device for the front axle of an off-road four-wheel drive vehicle. Background technique [0002] With the development of automobile technology, people pay more and more attention to the off-road performance, fuel economy and handling convenience of SUV. At present, the wheel edge engagement devices of four-wheel drive vehicles are all manual control mechanisms or electric control mechanisms, but when the SUV is driving on a bad road or off-road conditions, the driver needs to get out of the car and use a wrench to manually open the vehicle after the manual control mechanism needs to stop. The gear can only be shifted by turning the lock, which makes the operation extremely inconvenient; and the electric operating mechanism cannot shift gears in time due to insufficient electronic driving force or insufficient electronic operation and unreliable electronic components...

AI Technical Summary

Problems solved by technology

At present, the wheel edge engagement devices of four-wheel drive vehicles are all manual control mechanisms or electric control mechanisms, but when the SUV is driving on a bad road or off-road conditions, the driver needs to get out of the car and use a wrench to manually open the vehicle after the manual control mechanism needs to stop. The gear can only be changed by turning the lock, which makes the operation extremely inconvenient; and the electric control mechanism cannot change gears in time due to insufficient electronic driving force or insufficient electronic operation and unreliable electronic components themselves, and the reliability is poor.

Images