Differential gear with high bearing capacity

Abstract

The invention relates to a conical gear differential mechanism structure with high bearing capacity. The differential mechanism comprises a differential shell and a horizontal straight shaft or a combined cross shaft, a satellite gear, and a bevel gear arranged in the differential shell; the dissection surface of the differential shell is arranged at the right side of the plane on which the horizontal straight shaft or the combined cross shaft is located; the combined cross shaft comprises a long pin, two short pins and a central bracket. The combined bolt and the bolt hole of the differential shell stop at the right side of the plane on which the horizontal straight shaft or the combined cross shaft is located; therefore, for a needed bearing capacity, the wall thickness of the differential shell can be thinned by about a half than conventional design, thus creating conditions for reducing the size of a driving axle; for the same volume, the bearing capacity thereof can be improved by increasing the modulus of the satellite gear, and the bevel gears in the differential mechanism.

Description

technical field [0001] The invention relates to an inter-wheel differential used in a drive axle of a wheeled vehicle, in particular to an inter-wheel differential using bevel gears. Background technique [0002] The bevel gear inter-wheel differentials of commonly used wheeled vehicles have two planetary gears and four planetary gears. The differential housing of the two planetary gears is integral, and the side gears, planetary gears and various gaskets All are installed through the window on the differential case, so the differential case is open, in order to obtain the required strength, the wall of the differential case must be made thicker. The carrying capacity of this type of differential is usually not very high, and it is generally only used for light vehicles. The housing of the differential with four planetary gears is usually split at the end plane where the cross shaft is located, and the left and right differential half shells are combined by 8 to 12 screws. ...

AI Technical Summary

Problems solved by technology

However, for the currently commonly used heavy-duty vehicle final drive, the tooth surface width of the passive gear usually does not reach the ideal ratio required to obtain the highest strength. This is because the driving gear of the heavy-duty vehicle final drive is usually mounted on a horse. Therefore, there is a contradictory relationship between the width of the tooth surface, the thickness of the guide bearing and the diameter of the differential case. Strengthening one of them will weaken the strength of other parts accordingly, so it can only be used between the parts. Finding a balance, not achieving the best design for every component

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