Transmission mechanism assembly of crawler tractor

Abstract

The invention provides a transmission mechanism assembly of a crawler tractor, which includes a transmission box body, an input shaft, an output shaft and a transmission unit, the transmission box body includes a gearbox body, an oil pump, and a differential, and the gearbox body is connected to the differential , a shift seat is fixed on the gearbox case body, the shift lever is inserted into the shift seat, the shift push rod is hinged on the shift lever, a counterbore is formed on the shift seat, steel balls and Spring, one end of the spring is placed at the bottom of the sink hole, the steel ball is in contact with the shift seat, the shift lever is fixed on the shift lever, and the shift of the output shaft is realized through the shift lever; the gearbox body is a planetary gear transmission, including shift The cylinder assembly, the shift fork fixedly connected with the shift cylinder assembly, the synchronizer moved by the shift fork, and the planetary gear train for torque transmission and torque output. The invention has simple and reasonable operation, compact gearbox structure, integrated speed change and drive, shortened power transmission route, reliable output and good power performance.

Description

technical field [0001] The invention relates to the technical field of agricultural machinery, in particular to a transmission mechanism assembly of a crawler tractor. Background technique [0002] All kinds of farming machines have been widely used in rural areas of our country, which has reduced labor intensity and improved labor efficiency for farmers in mountainous and hilly areas, and has great development prospects. The existing agricultural machines mainly rely on manpower to force the operation when they need to turn during the farming process, making the agricultural machine turn or turn around. It is hoped that while having the function of rotary tillage, additional functions such as gong, film covering and snow blowing can be realized by adding accessories. However, since the agricultural machine does not have a steering mechanism, it is difficult to turn or turn around when the agricultural machine is attached to the attachment for operation. Very difficult. ...

AI Technical Summary

Problems solved by technology

The differential used in agricultural machinery is a symmetrical conical planetary gear differential. This type of differential mainly has the following disadvantages: 1. The transmission box is composed of upper and lower sections, and the lower half section is composed of left and right two sections. Composed of half parts, the structure is complicated, the processing and assembly of parts are cumbersome, and the efficiency is low; the disassembly is difficult and the maintenance is inconvenient; 2. The tapered roller bearing cannot make the half shaft rotate completely centered in this structure, causing the half shaft, differential and Parts such as bearings are easily damaged; 3. The oil seal is a vulnerable part, and it is difficult to assemble and replace it in this structure

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