The invention provides an electrically-driven tractor CVT power assembly of a rear-mounted power take-off (PTO) structure. The electrically-driven tractor CVT power assembly comprises an engine, a generator, a first motor, a second motor, a third motor, a fourth motor, a PTO motor, a PTO transmission box and an energy storage unit. The first motor, the second motor, the third motor and the fourth motor are wheel-side motors, the engine is in transmission connection with the generator, the generator is a flywheel integrated motor, and the PTO motor is in transmission connection with the PTO transmission box and used for providing output power; the energy storage unit is electrically connected with the first motor, the second motor, the third motor, the fourth 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、第一电机、第二电机、第三电机、第四电机、PTO电机、PTO传动箱和储能单元;所述第一电机、第二电机、第三电机和第四电机为轮边电机,所述发动机与发电机传动连接,所述发电机为飞轮集成式电机,所述PTO电机与PTO传动箱传动连接用于提供输出动力;所述储能单元分别与第一电机、第二电机、第三电机、第四电机、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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