Device for slewing the column of a crane

Details Device for slewing the column of a crane Device for slewing the column of a crane

2007-09-04

2007-09-04

Brahan, Thomas J. (Department: 3654)

Traversing hoists

Having horizontally swinging boom or bridge

And means to swing boom horizontally

C212S253000

Reexamination Certificate

active

10868944

ABSTRACT:
The invention relates to a device dedicated for slewing a crane column, which device comprises a fastenable crane base formed by a house which is open at the top and at the bottom and in which a lower tubular part of the crane column is rotatably journalled by means of a number of bearings, which have the abilities of absorbing the bending moment as well as the axial and-/or transversal forces. A power source is connected to the crane column via a power slewing in order to provide for a powered rotation of the crane column around a vertical axis of rotation. Characterizing for the invention is that the power transmission comprises an eccentric gear, which is integrated with the house by being seated in an annular space between the outside of the crane column and the inside of the house.

REFERENCES:
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patent: 3960285 (1976-06-01), Gano
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patent: 501 463 (1995-02-01), None
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patent: 785181 (1980-12-01), None

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