| 摘要 |
The invention relates to a drive device (10) for an automotive work machine, wherein the drive device (10) includes a first hydraulic motor (12a) coupled to a driven shaft (16), a second hydraulic motor (12b) and a coupling device (18), by means of which the second hydraulic motor (12b) can be coupled to the driven shaft (16) for torque addition in a first shift state, and can be decoupled from the driven shaft (16) in a second shift state. The coupling device (18) in turn includes at least one synchronizing body (20) with a conical friction surface (22) coupled to the second hydraulic motor (12b) and a gear wheel (24) with a corresponding friction surface (26) movable relatively to the synchronizing body (20) and coupled to the driven shaft (16). Upon coupling the second hydraulic motor (12b) to the driven shaft (16), a possible rotation speed difference between the synchronizing body (20) and the gear wheel (24) is at least reduced and frictional fit between the friction surface (22) of the synchronizing body (20) and the friction surface (26) of the gear wheel (24) is established by relatively moving the synchronizing body (20) and the gear wheel (24). Upon decoupling the second hydraulic motor (12b) from the driven shaft (16), the frictional fit between the friction surface (22) of the synchronizing body (20) and the friction surface (26) of the gear wheel (24) is cancelled by relatively moving the synchronizing body (20) and the gear wheel (24) away from each other. |
