40F and 40R power gear shifting tractor gearbox

Abstract

A 40F and 40R power gear shifting tractor gearbox comprises a power gear shifting transmission device, a creeper gear transmission device, a power reversing transmission device and a section gear shifting transmission device, wherein a first shaft and a second shaft are arranged in the power gear shifting transmission device; one end of the first shaft is connected with a tractor engine; the other end of the first shaft is connected with a tractor PTO; clutches and matched gears are mounted on the first shaft and the second shaft; the clutches are used for the achievement of different gears; a third shaft and a sixth shaft are arranged in the power reversing transmission device; a forward clutch and a backward clutch are arranged on the third shaft; a two-stage external meshing mechanism is arranged in the creeper gear transmission device; the input end of the creeper gear transmission device is connected with the third shaft; the output end of the creeper gear transmission device is connected with the input end of the section gear shifting transmission device; the output end of the section gear shifting transmission device is connected with a rear axle; the first shaft and a fourth shaft are distributed in the longitudinal center plane of a tractor; the second shaft and the third shaft are correspondingly positioned on two sides of the longitudinal center plane of the tractor; and a fifth shaft and the third shaft are arranged on one and the same straight line. The 40F and 40R power gear shifting tractor gearbox has the characteristics of being simple in structure, complete in function and high in transmission efficiency.

Description

technical field [0001] The invention belongs to the field of tractors, and in particular relates to a 40F+40R power shift tractor gearbox. Background technique [0002] At present, the gearboxes of domestic high-power wheeled tractors mostly use mechanical shifting methods such as meshing sleeves and synchronizers. When shifting gears, the tractor needs to disengage the main clutch first, cut off the engine power, and then shift to the required gear. The gear shifting is slow. affect work efficiency. [0003] The power shifting technology is to control the gear shifting of the gearbox through the hydraulic control system and the wet clutch, so as to realize the shifting and reversing operation of the gearbox under the condition of uninterrupted power. Compared with the traditional mechanical shifting technology, the power shifting technology can realize the uninterrupted power during the shifting process, simplify the operation process, greatly reduce the difficulty of oper...

AI Technical Summary

Problems solved by technology

[0004] The current tractor power shift technology is mainly aimed at the full power shift structure. This structure requires high machining accuracy and is difficult to manufacture. It is difficult to meet the needs of domestic manufacturing companies at this stage. Relatively simple structure, reliable and durable high-horsepower power shift tractor gearbox

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