Rotor positioning device
AssigneeSandvik Intellectual Property AB
InventorsAndreas FORSBERG, Rowan DALLIMORE, Knut KJAERRAN
Life of this patent
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Abstract
A rotor positioning device in a crusher is arranged to adjust a rotational position of a rotor shaft. A shaft engager includes a female toothed mating surface for coaxial engagement with a male mating surface at an end of the rotor shaft, so they become rotationally interlocked. The shaft engager includes alignable indicator slots that are, when in use, alignable with markings associated with an end of the rotor shaft, such that the markings become visible through the slots as the rod is rotationally driven by a drive component. The markings correspond to hammer positions within the crusher, such that these can be manoeuvred for maintenance (e.g. to top dead-center positions) before access to the crusher chamber is gained.
Claims12
A rotor positioning device arranged to adjust the rotational position of a rotor shaft in a crusher, the positioning device comprising:
- a frame arranged to mount the rotor positioning device at an external region of the crusher;
- a rod rotatably mounted at the frame;
- a shaft engager provided at one end of the rod to engage an end of the rotor shaft so as to rotatably lock the rod and the rotor shaft, the shaft engager being adjustably mounted relative to at least a part of the frame to enable the engager to move to and from contact with the rotor shaft;
- a drive component coupled to the rod to rotate the shaft engager and impart rotational drive to the shaft of the rotor;
- and
- an alignable indicator associated with the shaft engager for indicating a specific rotational position of the rotor shaft within the crusher.
A crusher apparatus including a positioning device mounted at an external region thereof, the positioning device including:
- a frame;
- a rod rotatably mounted at the frame;
- a shaft engager provided at one end of the rod and engageable with an end of a rotor shaft of the crusher, so as to rotatably lock the rod and the rotor shaft, the shaft engager being adjustably mounted relative to at least a part of the frame to enable the engager to move to and from contact with the rotor shaft;
- a drive component coupled to the rod to rotate the shaft engager and impart rotational drive to the shaft of the rotor;
- and
- an alignable indicator associated with the shaft engager for indicating a specific rotational position of the rotor shaft within the crusher.
Dependencies are inferred from the claim text.