Modular design gearbox and gear implementing method

Abstract

The invention relates to a modular design gearbox and a gear implementation method. The gearbox comprises a box body, a driving shaft, seven intermediate shafts and an output shaft, wherein the driving shaft, the seven intermediate shafts and the output shaft are arranged in the box body; fixing gears are arranged on the driving shaft and the output shaft; and each intermediate shaft is provided with a fixing gear and a floating gear arranged through a clutch. The modular design gearbox can achieve a mode with eight forward gears and four backward gears at the most so as to meet the needs of the eight forward gears for special machines, and meanwhile, the modes of seven forward gears and three backward gears, six forward gears and three backward gears and the like can be adjusted by controlling the matching of different clutches, so that the requirements of different main machines are met; moreover, the speed ratio of each gear of the gearbox can be flexibly adjusted without changing transmission paths; different speed ratio and gear requirements can be achieved by altering or deleting some of parts under the condition that the box body of the gearbox is not changed; and the moduledesign of the gearbox is achieved without changing the box body of the gearbox, the universalization rate of the parts of the gearbox is improved, and the production cost of the gearbox is reduced.

Description

technical field [0001] The invention relates to the technical field of gearboxes, in particular to a modular design gearbox and a gear realization method. Background technique [0002] At present, construction machinery gearboxes can be divided into two types: coaxial type and balance shaft type according to the arrangement of transmission shafts. The coaxial gearbox is mainly the coaxial input shaft and output shaft of the gearbox, which is mainly used in engineering vehicles where the axis of the engine output end and the axis of the input end of the drive axle are in the same plane; There is a height difference between them, and it is mainly used in engineering vehicles with a certain axle drop between the engine output shaft and the drive axle input axis. [0003] The coaxial gearbox mostly adopts a planetary gear structure for power transmission and gear switching. The gearbox with this structure has a compact structure and requires less space, but the structure is m...

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Problems solved by technology

[0006] The existing gearbox cannot meet the requirements of 8 forward gears. For special machinery such as motor graders, 8 forward gears are required to meet the ne

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