Gearbox assembly with power high-low gears and power reversing function for tractor

Abstract

The invention belongs to the technical field of gearboxes and relates to a gearbox assembly with power high-low gears and a power reversing function for a tractor. The gearbox assembly comprises a box body and a power output shaft, and the box body is sequentially provided with a wet-type clutch, a synchronizer shift gear, an engagement sleeve shift gear and a planetary reducer which are in transmission with one another; according to the wet-type clutch, the power output shaft serves as an input shaft, when an advancing high gear of the wet-type clutch is combined, a high-gear active gear drives a slave gear, and then a low-gear constant engagement gear pair drives the synchronizer shift gear; when an advancing low gear of the wet-type clutch is combined, an engine power flow is directly output to the synchronizer shift gear through a slave gear of the advancing low gear; and when a reverse gear of the wet-type clutch is combined, the engine power flow is transmitted to a slave gear of the reverse gear on the output shaft by an active gear of the reverse gear through an idle gear and then is output to the synchronizer shift gear through an advancing low-gear gear pair. The gearbox assembly has the advantages that the structure is compact, the size is small, gear shifting is easy, and operating is convenient; and the gearbox assembly with the power high-low gears and the power reversing function is suitable for agricultural machinery such as the tractor.

Description

technical field [0001] The invention belongs to the technical field of gearboxes, in particular to a gearbox assembly with power high and low gears and power reversing for tractors. Background technique [0002] At present, for agricultural machinery such as non-power shifting tractors, when shifting gears in farmland operations, the clutch must be depressed first to make the gearbox gear idling, and then the clutch is released after shifting gears, and the vehicle runs according to the speed after the shift. [0003] Its disadvantages are: when non-powered tractor-like agricultural machinery encounters greater resistance when climbing or farming or needs to shift gears when turning, it needs to cut off the power, which seriously affects the operation efficiency and quality, and consumes time and fuel. The power shifting technology can shift gears under the state of uninterrupted power (no separation clutch is required), which can effectively overcome the above problems. Fo...

AI Technical Summary

Problems solved by technology

[0003] Its shortcoming is that when non-powered tractor-like agricultural machinery encounters greater resistance when climbing or plowing or needs to shift gears when turning, it needs to cut off the power, which seriously affects the working efficiency and working quality, and consumes time and fuel.

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