Front drive mechanism with multi-speed steering function

Abstract

The invention relates to a front drive mechanism with a multi-speed steering function. A first transmission case is internally and rotatably provided with a small bevel pinion shaft, a power device isconnected to one end of the small bevel pinion shaft, and a rear drive axle is connected to the other end of the small bevel pinion shaft. The small bevel pinion shaft is further fixedly provided with a driving gear. The first transmission case further comprises an idler shaft, the idler shaft is fixedly provided with a high speed intermediate gear and a low speed intermediate gear which meshes with the driving gear. A second transmission case is internally and rotatably provided with a front drive output shaft, the front drive output shaft is fixedly provided with a low speed clutch connected with a low speed driven gear and a high speed clutch which connected with a high speed driven gear, the low speed driven gear meshes with the low speed intermediate gear, and the high speed driven gear meshes with the high speed intermediate gear. One end of the front drive output shaft is connected with a front axle. When a tractor works normally, the low speed clutch unifies to meet the requirements of the tractor on traction; and when the tractor turns, the low speed clutch disconnects, the high speed clutch unifies, the turning radius of the tractor is reduced, and the turning time is shortened.

Description

technical field

[0001] The invention relates to the technical field of tractors, in particular to a front transmission mechanism with double-speed steering function. Background technique

[0002] Due to the limitation of the area of ​​the farmland, the tractor needs to turn and turn around when driving to one end of the farmland, so as to cultivate the land in the adjacent area. When the tractor turns, it will leave some uncultivated land. The larger the turning radius of the tractor, the larger the area of ​​uncultivated land left. Therefore, how to reduce the turning radius of the tractor, shorten the turning time, and improve work efficiency is an urgent need for users to solve The problem.

[0003] When the tractor turns, the distance traveled by the front road is longer than that of the rear wheels, which requires that the linear speed of the front wheels be greater than that of the rear wheels. However, due to structural limitations of the existing four-wheel drive tr...

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