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US 12,486,148 B2Granted
Winch drum monitoring device
AssigneeSumitomo Heavy Industries Construction Cranes Co., Ltd.
InventorsToshiki Oe, Tatsuya Matsushita
Life of this patent
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Abstract
A winch drum monitoring device that monitors a state of a winch drum includes: a phase detector configured to detect a phase of the winch drum; and a distance detector configured to detect a distance to the winch drum or a distance to a wire rope wound around the winch drum.
Claims16
A winch drum monitoring device that monitors a state of a winch drum, the device comprising:
- a phase detector configured to detect a phase of the winch drum;
- a distance detector configured to detect a distance to the winch drum or a distance to a wire rope wound around the winch drum;
- and
- a phase determination portion for detecting a specified phase,
- wherein the phase detector detects the phase of the winch drum by detecting the phase determination portion.
2 more elements
A winch drum monitoring device that monitors a state of a winch drum, the device comprising:
- a phase detector configured to detect a phase of the winch drum;
- and
- a distance detector configured to detect a distance to the winch drum or a distance to a wire rope wound around the winch drum,
- wherein the winch drum includes a winding portion around which the wire rope is wound, and flange portions provided on both side portions of the winding portion,
- a phase determination portion is provided at least partially in a circumferential direction on an outer peripheral side in a radial direction of the flange portion, and
- the phase detector detects the phase of the winch drum by detecting the phase determination portion.
3 more elements
A crane, comprising:
- an upper rotating body;
- a boom configured to be derrickable with respect to the upper rotating body;
- a derricking winch configured to derrick the boom;
- a hoisting winch configured to wind and unwind a hoisting rope;
- and
- a winch drum monitoring device configured to monitor a state of a winch drum of at least one of the derricking winch and the hoisting winch,
- wherein the winch drum monitoring device comprises:
- a phase detector configured to detect a phase of the winch drum;
- a distance detector configured to detect a distance to the winch drum or a distance to a wire rope wound around the winch drum;
- and
- a phase determination portion for detecting a specified phase, and
- the phase detector detects the phase of the winch drum by detecting the phase determination portion.
9 more elements
Dependencies are inferred from the claim text.