Swing type limited slip differential

Abstract

The invention provides a swing type limited slip differential, which comprises a shell, two differential gears distributed on the left and right, two planet gears distributed up and down between the differential gears, friction plates and pressure plates. The swing type limited slip differential is characterized in that: each planet gear is provided with a gear shaft; one of the two contacted gear shafts has a ball at the front end, and the other of the two contacted gear shafts has a recessed inner taper hole at the front end; the center of the ball is positioned at conic nodes of the planet gears; gaps are formed between the pressure plates and the shell; and the tail of each gear shaft is mounted on the shell and can do trace swing in the same plane as the axis of each differential gear. When a bevel gear pair is meshed, the conic nodes are overlapped, and the meshing accuracy is ensured; and after driving torque is lost or reduced because wheels on one side slip, automatic adjustment is carried out through an internal mechanism, larger driving torque of wheels on the other side is instantly regulated, and the driving torque on the two sides is redistributed to ensure driving safety when a vehicle slips or turns a corner.

Description

technical field [0001] The invention belongs to a mechanical transmission differential mechanism, in particular to a limited-slip differential with a swingable planetary gear shaft. Background technique [0002] The differential is mainly used in the transmission system of a car. When there is a speed difference between the left and right driving wheels, the torque assigned by the differential to the slow-turning driving wheels is greater than the torque of the fast-turning driving wheels. Generally, a limited-slip differential includes two side gears, and the side gears are meshed and driven by two coaxial planetary gears. Whether the meshing between the bevel gears is optimal, that is, the meshing accuracy, is mainly determined by the two bevel gears. Whether the cone tops of the planetary gears are kept coincident, whether the actual meshing surface between the teeth is in the best position, and the side gears may have a certain offset under the drive of external force, b...

AI Technical Summary

Problems solved by technology

Generally, a limited-slip differential includes two side gears, and the side gears are meshed and driven by two coaxial planetary gears. Whether the meshing between the bevel gears is optimal, that is, the meshing accuracy, is mainly determined by the two bevel gears. Whether the cone tops of the planetary gears are kept coincident, whether the actual meshing surface between the teeth is in the best position, and the side gears may have a certain offset under the drive of external force, but because the gear shaft of the planetary gear is an integral structure, and it is connected with the The housing of the differential is fixed and tightly connected, so the planetary gears cannot be adaptively adjusted for offset because the shafts are fixed and limited, and the cone tops of the planetary gears and the side gears are thus deviated, and the meshing surfaces between the two are therefore Deviating from the optimal position, the driving torque cannot be effectively transmitted and responded in time

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