The invention provides an electrically-driven tractor CVT power assembly with a rear-mounted power take-off (PTO) structure, which comprises an engine, a generator, a PTO motor, a clutch, a speed reducer, a PTO transmission case, an electrically-driven front axle, an electrically-driven rear axle and an energy storage unit, a front axle motor is arranged on the electrically-driven front axle, a rear axle motor is arranged on the electrically-driven rear axle, and a rear axle motor is arranged on the rear axle. The engine is in transmission connection with the generator, the PTO motor is in transmission connection with one end of the clutch, the other end of the clutch is in transmission connection with the speed reducer, and the speed reducer is in transmission connection with the PTO transmission box; the energy storage unit is electrically connected with the front axle motor, the rear axle motor, the PTO motor and the generator. According to the electrically-driven tractor CVT power assembly of the rear power-on PTO structure, the characteristics that the motor is low in speed, large in torque and wide in rotating speed range are utilized, gear switching of a gearbox is not carried out, the motor is directly used for speed regulation, and stepless speed change in the operation process is achieved.
本发明提供一种后挂电PTO结构的电驱式拖拉机CVT动力总成,包括:发动机、发电机、PTO电机、离合器、减速器、PTO传动箱、电驱动前桥、电驱动后桥和储能单元,所述电驱动前桥上布置有前桥电机,所述电驱动后桥上布置有后桥电机,所述发动机与发电机传动连接,所述PTO电机与离合器的一端传动连接,所述离合器的另一端与减速器传动连接,所述减速器与PTO传动箱传动连接;所述储能单元分别与前桥电机、后桥电机、PTO电机和发电机电连接;本发明提供的后挂电PTO结构的电驱式拖拉机CVT动力总成,利用电机低速大扭矩、转速范围宽的特性,不进行变速箱档位切换,直接使用电机调速,实现了作业过程的无级变速。
Electrically-driven tractor CVT power assembly with rear-mounted power take-off (PTO) structure
一种后挂电PTO结构的电驱式拖拉机CVT动力总成
2021-07-23
Patent
Electronic Resource
Chinese
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