摘要:
In the drive arrangement (1) of a curved roll according to the invention, a direct drive motor (2) is attached to a dead axle (13) of the curved roll at the drive end side end of the roll (5). A rotor of the direct drive motor is attached to a roll pipe at the drive end side end of the roll pipe (14). The bearing of the roll pipe functions also as the bearing of the rotor of the direct drive motor (2), thus no own bearings are needed at the direct drive motor.
摘要:
A method and device for controlling the runnability of a fiber web machine, where a certain layer thickness is removed from the outer surface of the shell of the roll of a fiber web machine, such as a drying cylinder, and where the layer thickness removed from the shell of the roll is replaced with a composite material. The replaced layer thickness is selected considering the vibration-influencing properties of the removed material and of the replacing material so that the critical speed of a roll created by replacing the removed layer thickness with a composite material is suited to the desired running speed of the said roll.
摘要:
The inventive idea is to make the rotating elements or rolls in a tissue papermaking machine with a reduced weight comparing to the conventional rolls made of steel. In this manner the rolls create less vibrations and allow sufficiently increase of the operation speed and productivity of the entire machine, or reduce the machine dimension for a given operation speed comparing to the conventional solutions. The invention is applicable to rebuilds of the existing machines and for new high-speed installations.
摘要:
The invention relates to a roller (10) for a web processing machine, comprising a supporting core (16) which is supported in the region of both ends thereof via a respective bearing (14), and an outer covering (18) whereby the central area thereof (20), when seen in an axial manner, is mounted in a radially fixed manner in relation to the supporting core, and both ends thereof are supported by an additional bearing (22) in a radially displaceable manner in relation to the supporting core. The central plane (26, 28) extends in the radial direction, and the supporting core bearing and also the outer cover bearing are arranged in an axial manner inside the outer cover. The outer cover in the region of both ends thereof can be adjusted, respectively, by an actuator (30) which is arranged inside the outer cover.
摘要:
Es wird eine Breitstreckwalze (22) für eine Maschine zur Herstellung einer Materialbahn (24), insbesondere Papier- oder Kartonbahn, mit einem Walzenrohr (26) und diesem zugeordneten Mitteln zur Einleitung von Biegemomenten im Bereich der beiden Walzenrohrenden (52) beschrieben, bei der die Biegemomente im Bereich der beiden Walzenrohrenden (52) jeweils über zumindest zwei unterschiedliche Radiallagen innerhalb des Walzenrohres (26) eingeleitet werden.