Slip-limiting differential mechanism with noncircular bevel gear

Abstract

The invention relates to a slip-limiting differential mechanism with a noncircular bevel gear. The slip-limiting differential mechanism with the noncircular bevel gear consists of a differential mechanism shell, a noncircular planet gear and a noncircular half axle gear. The planet gear is connected with the shell by a shaft handle or a linear shaft and rotates with respect to the shell. The gear ratio of the noncircular planet gear to the noncircular half axle gear is 1: 2. The planet gear and the half axle gear adopt the noncircular bevel gear structures, the transmission ratio in an engagement process is not a fixed value, the change law of the transmission ratio is not limited by the number of the teeth, and the change range of the numerical value can be greatly improved. Therefore, the locking coefficient of the differential mechanism is improved, the pulsation and the impact are reduced simultaneously, and the cross-country requirements of cars are met. The invention is particularly suitable for various wheeled engineering machines of cross-country cars, dump trucks, wheel loaders, bulldozers and the like.

Description

technical field [0001] The invention belongs to the field of mechanical engineering, in particular to a non-conical gear limited-slip differential for vehicles. Background technique [0002] Off-road vehicles often drive on muddy, soft roads or even roadless areas, and passability is one of its most important performance indicators. As an important part of the car, the differential is to distribute the torque between the two output shafts and ensure that the two output shafts may rotate at different angular velocities. Its form and performance are directly related to the passability of the vehicle. [0003] At present, my country's off-road vehicle drive axles generally use symmetrical bevel gear differentials. The two half-shaft gears are of the same size, and the torque can be roughly evenly distributed to the left and right drive wheels. When the car is driving on a good road, such a distribution is satisfactory both for straight-line driving and turning. But when one s...

AI Technical Summary

Problems solved by technology

However, there are two major weaknesses in the current variable ratio differential: one is that the range of change in the transmission ratio is too small to overcome the impact of slipping; the other is that the change period of the transmission ratio is too short, which is prone to pulsation and impact

The reason is that the transmission ratio of the existing variable ratio differential is based on one or three pitches of the gear as a change period, and the period is too short and the change range is too small

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