Spreader roll
AssigneeMetso Paper, Inc.
InventorsKalle Vaaraniemi, Juha Isometsä
Life of this patent
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Abstract
A spreader roll has at least two partial rolls (10, 20, 30) with a composite shell (11, 21, 31) and two end part rolls (10, 30) connected together directly or by an intermediate part roll (20) so a gap (D) remains between the end surfaces of the shells (11, 21, 31) of the partial rolls (10, 20, 30). An end journal (12, 32) is connected to the outer end of the roll shell (11, 31) of each end part roll (10, 30). Each end journal is supported to frame constructions (R) by an end bearing (40, 50). The partial rolls (10, 20, 30) are connected by an intermediate journal (13, 33) rotating with the roll shells (11, 21, 31) of the partial rolls (10, 20, 30). The intermediate journal (13, 33) is supported to a fixed support beam (P) external to the spreader roll by an intermediate bearing (60, 70).
Claims15
A spreader roll assembly comprising:
- a first partial roll having a composite shell, and having a first coaxial end journal mounted to a first end of the first partial roll for rotation with the first partial roll, and an intermediate coaxial journal mounted to a second end of the first partial roll for rotation with the first partial roll;
- a second partial roll having a composite shell having a second coaxial end journal mounted to a first end of the second partial roll for rotation with the second partial roll, and wherein a second end of the second partial roll is mounted to the intermediate coaxial journal which connects the first partial roll and the second partial roll so that the intermediate coaxial journal is mounted for rotation with the first partial roll and the second partial roll;
- a first construction mounted to a fixed frame;
- a first bearing mounted to the first construction, wherein the first coaxial end journal is mounted for rotation on the first bearing;
- a second construction, mounted to the fixed frame;
- a second bearing mounted to the second construction, wherein the second coaxial end journal is mounted for rotation on the second bearing;
- a third construction mounted to the fixed frame;
- and
- a third bearing mounted to the third construction, wherein the intermediate coaxial journal is mounted for rotation on the third bearing, and wherein the first partial roll shell and the second partial roll shell are spaced apart axially to define a gap therebetween, and wherein the third construction has portions extending through the gap to a fixed support beam external to the partial rolls which is in turn mounted to the fixed frame.
A spreader roll assembly, comprising:
- a plurality of linearly arrayed partial rolls, each partial roll having a composite shell with two ends, wherein the composite shells are spaced apart to define gaps between adjacent composite roll shell ends, and wherein each composite shell is joined to one or two adjacent composite shells by an intermediate journal fixedly mounted to adjacent roll shell ends and extending across the defined gap so that all of the plurality of partial rolls are fixedly joined together to rotate together and to form a spreader roll;
- a first end journal at a first end of the spreader roll, the first end journal being fixedly mounted to a first partial roll of said plurality of partial rolls, and the first end journal being mounted by a first end bearing to a first fixed frame construction;
- a second end journal at a second end of the spreader roll, the second end journal being fixedly mounted to a second partial roll of said plurality of partial rolls, the second end journal being mounted by a second end bearing to a second fixed frame construction;
- a fixed support beam external to the spreader roll;
- and
- an intermediate bearing for each intermediate journal, wherein each intermediate journal is supported to the fixed support beam by an intermediate bearing.
The assembly of claim, 8 wherein each intermediate support element is an automatically adjustable support element comprising:
- a cylinder;
- a piston adapted to the cylinder;
- and
- a piston pin fastened to the piston, and mounted to an intermediate bearing housing, wherein a pressure medium can move the piston and thus the piston pin to deviate said intermediate bearing in a radial direction with respect to the spreader roll.
A assembly comprising at least two partial rolls, each partial roll having a composite shell, the at least two partial rolls comprising two end part rolls which are connected together directly or via an intermediate part roll such that a gap is defined between end surfaces of the roll shells, wherein each end part roll has an end journal connected to an outer end of its roll shell which rotates with said roll shell, said end journal being supported to a fixed frame construction by an end bearing, the partial rolls being connected together by an intermediate journal rotating with the roll shells of the partial rolls, said intermediate journal being supported to a fixed support beam external to the spreader roll by an intermediate bearing fixed to said support beam.
Dependencies are inferred from the claim text.