Automatic gear shifting and speed changing system

Abstract

The invention discloses an automatic gear shifting and speed changing system. The automatic gear shifting and speed changing system comprises a box body, an input shaft and a gear shifting shaft, wherein one end of the input shaft is provided with a driving gear through a clutch; the gear shifting shaft is provided with a synchronizer, a gear shifting gear and a combination sleeve, and the combination sleeve is provided with a gear shifting fork in a matched mode; the gear shifting gear is in transmission connection with the driving gear through a gear; the box body is further provided with anautomatic clutch mechanism and an automatic gear shifting mechanism, and the automatic clutch mechanism comprises a clutch control mechanism used for pushing a release bearing to achieve clutch separation and a clutch electric drive assembly used for driving the clutch control mechanism; the automatic gear shifting mechanism comprises a gear shifting push rod which is installed on the box body inan axial sliding mode and a gear shifting electric drive assembly used for driving the gear shifting push rod to move in the axial direction; and the gear shifting push rod is parallel to the gear shifting shaft, and one end of the gear shifting push rod is fixedly connected with the gear shifting fork. The automatic gear shifting and speed changing system has the advantages that the structural design is reasonable, automatic execution of gear shifting operation can be achieved, the operation difficulty can be reduced, and the service life can be prolonged.

Description

technical field [0001] The invention relates to the technical field of power transmission systems, in particular to an automatic shifting transmission system. Background technique [0002] At present, in the driving system of small and medium-sized two-wheeled, three-wheeled or four-wheeled vehicles, a cable is generally used to control the shifting mechanism to realize the shifting operation. Before shifting, it is necessary to reduce the engine speed or control the clutch to cut off the power of the input shaft. , and then perform the shift operation. When shifting gears manually, the operator needs to have relatively proficient driving skills, that is, the operator needs to operate the engine to reduce the speed or operate the clutch to cut off the power, and then perform the gear shifting operation, and the timing of the gear shifting needs to match the driving speed of the vehicle. Otherwise, there may be large shifting resistance, difficult shifting operation, unstabl...

AI Technical Summary

Problems solved by technology

When shifting gears manually, the operator needs to have more proficient driving skills, that is, the operator needs to operate the engine to reduce the speed or operate the clutch to cut off the power, and then perform the gear shifting operation, and the timing of the gear shifting needs to match the driving speed of the vehicle. Otherwise, there may be problems such as large shifting resistance, difficult shifting operation, unstable shifting, loud shifting noise, and even low service life of the shifting operating mechanism.

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