Cultivator gearbox structure

Abstract

The invention discloses a cultivator gearbox structure which comprises a box body, a power input shaft rotationally installed on the box body and a power output shaft. The power output shaft is parallel to the power input shaft and is in transmission connection with the power input shaft. The cultivator gearbox structure is characterized by further comprising an intermediate shaft which is rotationally installed on the box body and is parallel to the power input shaft; an intermediate shaft transmission gear train is arranged between the power input shaft and the intermediate shaft and is usedfor driving the intermediate shaft to rotate in the same direction; a second-gear transmission gear train is arranged between the power input shaft and the power output shaft and is used for drivingthe power output shaft to rotate forwards at the second-gear rotating speed; a first-gear transmission gear train is arranged between the intermediate shaft and the power output shaft and is used fordriving the power output shaft to rotate forwards at the first-gear rotating speed, and a reverse-gear transmission gear train is arranged between the intermediate shaft and the power output shaft andis used for driving the power output shaft to rotate backwards; at least a part of a vacant section is arranged on the intermediate shaft, and the vacant section can be right opposite to a variable gear to form a neutral gear. The cultivator gearbox structure has the beneficial effects that the structure is simple and compact, power transmission is more reasonable, the cultivator gearbox structure can adapt to various additional machine tools, and the work efficiency can be improved.

Description

technical field [0001] The invention relates to the technical field of gearboxes; in particular, it relates to a tiller gearbox structure. Background technique [0002] At present, with the acceleration of my country's agricultural modernization process, agricultural machinery such as cultivators, as a kind of machinery and equipment that can greatly reduce the labor intensity of farmers, has become increasingly popular. Mechanical devices such as cultivators and motorcycles output power (torque) through the rotation of the engine crankshaft, and then convert the speed of the gearbox to generate gears with different speeds, and then transmit the power (torque) to the lower gear through the output shaft. The first-level tillage device or \and walking device drives the cultivator to produce corresponding tilling and walking actions. [0003] The travel drive transmission structure for the rear-mounted cultivator in the prior art usually has a neutral gear, two or more forward...

AI Technical Summary

Problems solved by technology

However, in the design of this invention, the intermediate shaft has two axially adjacent structures, and the two intermediate shafts are directly transmitted through gears and tooth grooves. This transmission mode makes the two intermediate shafts prone to twisting and deformation when transmitting power. The power transmission is unreasonable; secondly, the manufacturing cost of the multi-gear structure is high; moreover, the gear shifting of this structure needs to operate the high and low speed switching push rod and the gear shift lever to select the forward gear, and the reverse gear also needs to operate the reverse gear handle , it is more complicated to operate

Therefore, although the power structure of the engine gearbox body with this structure meets the requirements of farming efficiency and transition speed, the operation is not simple enough and the manufacturing cost is high.

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