Selection method of bearing preload tooling and adjusting shim for dual clutch automatic transmission

Abstract

The invention relates to a bearing pretensioning tooling for a double-clutch automatic gearbox. The bearing pretensioning tooling comprises four supporting rods, a limit partition, a differential tapered bearing sleeve assembly, an output shaft I tapered bearing sleeve assembly and an output shaft II tapered bearing sleeve assembly. The limit partition is connected with the supporting rods through connecting bolts and provided with three through holes; the differential tapered bearing sleeve assembly, the output shaft I tapered bearing sleeve assembly and the output shaft II tapered bearing sleeve assembly are connected with the limit partition plate through the three through holes. By the bearing pretensioning tooling for the double-clutch automatic gearbox, tapered roller bearings of a support gear shaft system of the automatic gearbox has enough pretensioning force after assembling of the double-clutch automatic gearbox, so that the gearbox runs more stably and the service life of the bearings can be prolonged.

Description

technical field [0001] The patent of the present invention belongs to an auxiliary installation tool for a gearbox, and specifically relates to an auxiliary installation tool for a dual-clutch automatic gearbox to ensure sufficient bearing pretightening force and a selection method for adjusting the thickness of a gasket. Background technique [0002] The gearbox is a very important part of the car, and the core component of the internal structure of the gearbox is the gear shaft system. The gear shaft system plays the role of decelerating and increasing torque during the operation of the gearbox, and is generally supported and arranged inside the gearbox housing by tapered roller bearings or deep groove ball bearings. [0003] The tapered roller bearing is composed of two parts, the inner ring and the outer ring. The inner ring is press-fitted into one end of the transmission shaft, while the outer ring is pressed into the housing groove corresponding to the inner ring. Th...

AI Technical Summary

Problems solved by technology

[0005] At present, during the installation process of ordinary gearboxes, the bearing preload problem will be solved by using a pad with a certain weight when selecting the adjusting gasket, but when the preload force is large, this method will not be practical.

However, the design preload of the tapered bearings at both ends of the dual-clutch automatic transmission supporting the pinion system is relatively large, and the installation method of the ordinary transmission will cause damage to the life of the transmission.

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