Rear power takeoff for speed changing box

Abstract

The invention discloses a rear power takeoff for a speed changing box, which comprises a power takeoff gear shaft, wherein one end of the power takeoff gear shaft is provided with a spline section and an output shaft being in coaxial on-off with the power takeoff gear shaft, a shaft circle at one end of the output shaft is provided with a spline section corresponding to the spline section on the power takeoff gear shaft, the spline section of the output shaft is connected with a clutch spline sleeve which is connected with a clutch drive device, and the other end of the output shaft is provided with an output connecting spline hole. The rear power takeoff also comprises a front shell and a rear shell which are connected mutually, the shaft end of the power takeoff gear shaft is provided with a connecting supporting hole, the end part of the output shaft is supported in the connecting supporting hole at the shaft end of the power takeoff gear shaft through a bearing, and the other end of the output shaft is supported between the front shell and the rear shell. The rear power takeoff has compact axial structure and small volume, and can be widely applied to medium and heavy speed changing boxes.

Description

technical field [0001] The invention belongs to a power take-off, in particular to a power take-off after a gearbox connected with a gearbox. Background technique [0002] At present, the rear power take-off for the gearbox is installed on the rear side of the gearbox. The support structure of the output shaft is a cantilever support with two support bearings arranged in the casing near the output end. The output shaft is not supported near the drive shaft end. This structure The output shaft is subjected to uneven force during the force taking process; meanwhile, the housing adopts an integral housing, which requires the output shaft to be relatively long to ensure the installation and connection of the output shaft and the housing. Therefore, the structure volume of the rear power take-off of the above-mentioned gearbox is relatively large, and the structure of the clutch driving device in the housing is relatively large, which increases the cost of parts and is not conven...

AI Technical Summary

Problems solved by technology

[0002] At present, the rear power take-off for the gearbox is installed on the rear side of the gearbox. The support structure of the output shaft is a cantilever support with two support bearings arranged in the casing near the output end. The output shaft is not supported near the drive shaft end. This structure The force on the output shaft is not uniform during the force taking process; at the same time, the shell adopts an integral shell, which requires the output shaft to be relatively long to ensure the installation and connection of the output shaft and the shell

Therefore, the structure volume of the rear power take-off of the above-mentioned gearbox is relatively large, and the structure of the clutch driving device in the housing is relatively large, which increases the cost of parts and is not convenient for the arrangement of other power devices on the chassis of a special vehicle; at the same time, the cantilever support structure of the output shaft causes the output The clutch section of the shaft is easy to wear, and after a long time of use, it is difficult to ensure the coaxiality of the output shaft and the power take-off gear shaft

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