Sliding engaging sleeve of gearbox

Abstract

The invention provides a sliding engaging sleeve of a gearbox. A sliding sleeve body is included; the outer ring of the sliding sleeve body is provided with a shifting fork groove; the center of the sliding sleeve body is provided with a center through hole; the center through hole comprises a sliding segment and an engaging segment; the inner diameter of the sliding segment is smaller than that of the engaging segment; an inner spline I is arranged in the sliding segment; an inner spline II is arranged in the engaging segment; the diameter of the addendum circle of the inner spline II is larger than that of the dedendum circle of the inner spline I; 7-13 Oerlikon end face engaging teeth which are uniformly distributed in the circumferential direction are arranged on the outer end face ofthe engaging segment; and all the Oerlikon end face engaging teeth are equal-height teeth. According to the sliding engaging sleeve of the gearbox, the Oerlikon end face engaging teeth are used for replacing traditional straight teeth, slow engaging and withdrawing of the engaging teeth can be guaranteed, meanwhile, the engaging contact area is increased, the spontaneous out-of-gear problem is solved, power output interrupting is prevented, stability and reliability of power transmission are guaranteed, stress is stable, and the service life is long.

Description

technical field [0001] The invention relates to the technical field of gear transmission, in particular to a sliding meshing sleeve of a gearbox. Background technique [0002] In the field of automobile manufacturing, the gearbox is composed of gears and shafts. It generates variable speed and torque through different gear combinations. Its main functions are: 1. Change the transmission ratio; 2. When the rotation direction of the engine remains unchanged, the car can reverse 3. Use the neutral gear to interrupt the power transmission, so that the engine can start and idle, and it is convenient for the transmission to shift gears or perform power output. The sliding meshing sleeve is an important part of the gearbox. The single-degree-of-freedom sliding fit is fitted on the spline shaft. It slides axially under the drive of the shift fork and meshes with the driving gear for transmission. When the torque is transmitted, the sliding meshing Sleeves generally use end meshing ...

AI Technical Summary

Problems solved by technology

The sliding meshing sleeve is an important part of the gearbox. The single-degree-of-freedom sliding fit is fitted on the spline shaft. It slides axially under the drive of the shift fork and meshes with the driving gear for transmission. When the torque is transmitted, the sliding meshing Sleeves generally use end meshing teeth to mesh with driving gears. At present, the end meshing teeth of sliding meshing sleeves on the market are all straight tooth structures. Straight tooth meshing tooth structure, the force-bearing surface of the end-face meshing teeth and the force-bearing surface of the driving gear are both flat. After the gear is engaged, it is easy to have a problem of disengagement, which will lead to the power output terminal and affect the stability and reliability of power transmission. It can no longer meet the requirements of vehicle transmission stability, ride comfort and safety, etc.

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