| 摘要 |
<p>The locomotive switchgear has a switch group for travelling and for braking respectively. The lifter moves away the rolls of the respective switches from the cam roller. The lifting elements for the cam rollers are actuated by levers which are controlled by a cam disc, driven by a low-inertia electric motor in such manner that the cam disc rotation controls the lifting. On the cam disc rotation first the cam rolls of one switch group, which are actuated by the cam roller, are lifted. Then the already lifted cam rolls of the other switch group are released for actuation by the respective cam discs. Preferably the two levers are mounted on shafts parallel to the cam roller, these shafts carrying also the lifting elements.</p> |
