| 摘要 |
A transmission for a working vehicle comprises a frame, an engine, a change-speed gearbox, a drive shaft and rear axles and so on. The input of a power take off is connected with the change-speed gearbox at a connecting port, the output of the power take off is serially connected with a hydraulic variable pump and a hydraulic gear pump. A reduction gearbox is mounted on the drive shaft. An input shaft is located inside the reduction gearbox, an end of which is connected with a driving hydraulic motor. A pair of reduction gears are engaged on the input shaft of the reduction gearbox and the drive shaft, one of which is connected with the drive shaft by a clutch. An accelerating pedal is connected with the hydraulic variable pump pedal. The present invention has the following advantages: when the vehicle is in job sites, the engine can drive stably both the vehicle and the working mechanism through the hydraulic transmission. When the vehicle moves to other sites, the engine can drive the vehicle quickly through the mechanical transmission. The configuration of the transmission is simple, with low manufacture cost and easy maintenance. |
