Rotary crushing apparatus
AssigneeJDC Corporation
InventorsYuu Sato, Shingo Mizutani, Hiroshi Obata
Life of this patent
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Abstract
A rotary crushing apparatus includes a container (including a stationary drum, a rotating drum, and a top plate) into which a processing object containing raw material soil is fed. A rotating shaft extends in the vertical direction, and an impact member rotates in the rotating drum by the rotation of the rotating shaft to crush the processing object. Then, the rotating shaft is provided in such a way as to penetrate the top plate 10a, and the rotating shaft is rotatably held via ball bearings provided in the vicinity of the top plate. In addition, the lower end of the rotating shaft is a free end.
Claims20
A rotary crushing apparatus, comprising:
- a container into which a processing object containing raw material soil is fed from above the container;
- a rotating shaft that is configured for rotation by a motor and that is provided in the container;
- an impact member that rotates by rotation of the rotating shaft and crushes the processing object into crushed processing object, wherein the crushed processing object is discharged below the container;
- an imaging unit that images an inside of the container from above the container;
- and
- a controller, connected to the motor and the imaging unit, that performs imaging, by the imaging unit, of the impact member disposed inside the container when the impact member is rotating at a lower speed than a speed during the crushing of the processing object in response to an instruction to stop the rotating shaft and that determines a necessity of maintenance of the impact member based on a result of the imaging.
A rotary crushing method, comprising:
- rotating a rotating shaft provided in a container;
- receiving, from above the container, a processing object containing raw material soil and material in the container;
- crushing the processing object into crushed processing object with an impact member disposed inside the container that rotates by rotation of the rotating shaft, wherein the crushed processing object is discharged below the container;
- instructing a stopping of the rotating shaft;
- imaging the impact member inside of the container from above the container when the impact member is rotating at a lower speed than a speed during the crushing of the processing object in response to instructing the stopping of the rotating shaft;
- and
- determining a necessity of maintenance of the impact member based on a result of the imaging.
A rotary crushing apparatus, comprising:
- a container into which a processing object containing raw material soil is fed;
- a rotating shaft that is configured for rotation and is provided in the container;
- an impact member that rotates by rotation of the rotating shaft and crushes the processing object;
- an imaging unit that images an inside of the container from above the container;
- and
- a plurality of bearing members provided at a predetermined distance along the rotating shaft in a vicinity of a top plate of the container to reduce a deflection of the rotating shaft.
Dependencies are inferred from the claim text.