| 摘要 |
The disclosed lifting gear (10) comprises a powertrain (14) that includes a hysteresis clutch (23). Said hysteresis clutch (23) transmits torque from a driving motor (15) to a transmission and thus drives a pulling means (11). The hysteresis clutch (23) is set in such a way as to have slip already before the nominal load-bearing capacity (FNom) is reached on the pulling means, said slip differing significantly from 0. Hence, when the lifting gear operates within the range of or near the nominal load-bearing capacity (FNom), same works with continuous slip. The waste heat generated in the process is preferably transferred to the wall of the transmission housing via an oil bath, said wall thus serving as a cooling surface. Said improved lifting gear can be built smaller and has improved operating properties. |
