Differential mechanism with variable transmission ratio and eliminating slip

Abstract

The present invention relates to an antiskid differential mechanism with large drive ratio and high locking coefficient, and its technical scheme is characterized by that it includes a differential mechanism shell, its interior is equipped with planetary gear and axle shaft gear, and the exterior of axel shaft gear is equipped with plain gasket, on the described planetary gear and axle shaft gear the correspondent teeth are formed into variable drive ratio toothed structure in which three teeth are formed into one group, the the tooth forms of said three teeth are high tooth and two constant-depth low teech or two constant-deped high teeth and low teeth, and between the axle shaft gear outer side plain gasket and differential mechanism shell a disk spring leaf is set.

Description

Technical field: [0001] The invention relates to an anti-slip differential for vehicles, in particular to a limited-slip differential with variable transmission ratio. Background technique: [0002] At present, the structure of the anti-skid differential has many forms, and the working principle can be summarized as internal friction type, overrun type, electronic braking anti-skid differential system combined with ABS braking system and potential barrier type. The shortcomings of the high-friction type in the internal friction are expensive, the steering resistance is large, and the tires wear faster; the reliability of the overtaking type is poor, and the operation is not stable; the power consumption of the brake anti-skid system is large; the barrier type high-performance variable The transmission ratio differential has the advantages of simple structure and reliable performance, but because its transmission ratio cycle is a cycle, although the fluctuation range of its t...

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Problems solved by technology

[0002] At present, the structure of the anti-skid differential has many forms, and the working principle can be summarized as internal friction type, overrun type, electronic braking anti-skid differential system combined with ABS braking system and potential barrier type. The shortcomings of the high-friction type in the internal friction are expensive, the steering resistance is large, and the tires wear faster; the reliability of the overtaking type is poor, and the operation is not stable; the power consumption of the brake anti-skid system is large; the barrier type high-performance variable The transmission ratio differential has the advantages of simple structure and reliable performance, but because its transmission ratio cycle is a cycle, although the fluctuation range of its transmission ratio can be improved to a certain extent through parameter optimization, the effect is limited, further improving the transmission ratio range The relative curvature between the tooth surfaces will increase rapidly, and even ridges will be generated on the tooth surfaces. According to the traditional design method, the planetary gear is 7 teeth, and the half shaft gear is 12 teeth. The two half shaft wheels of the variable transmission ratio differential The gear ratio range between the two is only 1:1.38, the planetary gear is 9 teeth, and the side gear is 12 teeth. The differential can only reach 1:1.31, which is still not enough for off-road vehicles.

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