| 摘要 |
<p>The invention relates to a gearshift for transmitting a continuous drive by way of three gear ratios, wherein the power extracted from a motor is controlled automatically through different gear ratios according to a required application. A torque provided by a power source proceeds to a bevel gear type of centre boss (2). The torsional force of the lowest, mechanical gear ratio is passed by means of an overrunning clutch (8A) to a planetary gear (60), the gear ratio being selected according to a required application. The torque of a so-called intermediary gear translates hydrodynamically through the action of a fluid clutch (40) to a collecting planetary gear (50) at a given appropriate gear ratio. The torque of a so-called direct gear translates mechanically through the action of a box drum (5) directly to a torque output shaft (20). All three gear ratios participate in the transmission of torque simultaneously - either actively or passively.</p> |
