Multi-speed transmission for agricultural track chassis

Abstract

A multi-stage transmission for an agricultural crawler chassis, including a box body in which a power input shaft, an operation output shaft, and a planetary gear reducer rear axle device are installed. The power input shaft and the operation output shaft are connected through an operation shift mechanism. The input shaft is connected to the rear axle device of the planetary gear reducer through a double-shaft multi-gear forward and reverse transmission device. The double-shaft multi-gear forward and reverse transmission device includes a first shaft and a second shaft installed side by side in a box. There is a multi-gear forward and reverse conversion mechanism between the first rotating shaft and the second rotating shaft. The first rotating shaft is located at one end of the power input shaft and is perpendicular to the power input shaft. The first rotating shaft is connected to the power input shaft through the first transmission mechanism. The two rotating shafts are connected with the rear axle device of the planetary gear reducer through the second transmission mechanism. The multi-stage transmission has the advantages of simple and compact structure, small volume, light weight and the like.

Description

technical field [0001] The invention relates to the technical field of transmission devices, in particular to a multi-stage transmission of an agricultural crawler chassis. Background technique [0002] At present, the gearboxes of crawler tractors on the market generally do not have the function of in-situ steering. The gearboxes of crawler tractors usually adopt the design of hydraulic pump motor and mechanical shifting to realize a wide range of adjustable driving speeds, and there are many gears and shafts. , The system is complex, the cost is high, the gearbox size is too large, the failure rate is high, the operation is inconvenient, and the adaptability is not strong. Moreover, some of the rear axles of crawler tractor gearboxes on the market do not have the in-situ steering function. Although the rear axles of some gearboxes have steering functions, their structures are complicated, the installation accuracy is high, and the difficulty is great, making the existence ...

AI Technical Summary

Problems solved by technology

[0002] At present, the gearboxes of crawler tractors on the market generally do not have the function of in-situ steering. The gearboxes of crawler tractors usually adopt the design of hydraulic pump motor and mechanical shifting to realize a wide range of adjustable driving speeds, and there are many gears and shafts. , complex system, high cost, oversized gearbox, high failure rate, inconvenient operation, poor adaptability, etc.

Moreover, some of the rear axles of crawler tractor gearboxes on the market do not have the in-situ steering function. Although the rear axles of some gearboxes have steering functions, their structures are complicated, the installation accuracy is high, and the difficulty is great, making the existence of the gearbox unavoidable. Disadvantages such as high cost and large rear axle space

In addition, the shift mechanism of the crawler tractor gearbox on the market generally uses three or more shafts to achieve multiple forward and reverse gears. The large number of gears and shafts directly leads to the complexity of the transmission system, high cost, and overall Problems such as large size and low reliability

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