Metal working – Means to assemble or disassemble – Including assembly pallet
Patent
1989-03-15
1990-08-28
Eley, Timothy V.
Metal working
Means to assemble or disassemble
Including assembly pallet
29700, B23P 1900
Patent
active
049513877
ABSTRACT:
Apparatus for mounting and removing screws of an extrusion machine comprising two screws (10a, 10b) driven in rotation and guided at each of their ends by a bearing (1, 2). The screw-bearing assembly is placed on a work table (20) provided with adjustable devices (25, 26, 28) for supporting the screws, removing the bearings (1, 2) are removed and the sections (12) are successively extracted by means of suitable tooling and a section-hoisting device with respect to each screw separately. By means of a double section-hoisting device, a new section (12) is then simultaneously mounted on each splined shaft (11a, 11b) and the operation is repeated for each pair of new sections, placing back in position the bearing (1, 2) corresponding to each end of the shafts (11a, 11b) and lastly remounting the screw-bearing assembly in the extrusion machine.
REFERENCES:
patent: 2807080 (1957-09-01), Mathews, Sr.
patent: 3283699 (1966-11-01), Hawkins
patent: 3908258 (1975-09-01), Barty
patent: 4348799 (1982-09-01), Lord
patent: 4685628 (1987-08-01), Berrett
patent: 4783010 (1988-11-01), Kissel
Clextral
Eley Timothy V.
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