Abstract
A drive arrangement comprising a roll with a roll bearing, a bearing housing and a motor, wherein the bearing housing of the roll bearing is connected to a frame or a foundation and a drive torque of the motor can be transmitted to the roll. The motor is connected to the bearing housing and a reaction torque of the motor can be transmitted into the bearing housing. This allows avoidance of mechanical stresses introduced into the roll with good accessibility of the rolls.
Claims
1-10. (canceled)
11. A drive arrangement comprising: a roll (1,10) rotatable about an axis (7); a roll bearing (3) with a bearing housing (4) connected to a frame (16) or a foundation, the roll bearing (3) mounting the roll (1, 10) whereby a drive torque of the motor (6) can be transmitted to the roll (1,10); and a motor (6) indirectly connected to the bearing housing (4) of the roll bearing (3) at least via a gear unit (8), whereby a reaction torque of the motor (6) can be transmitted into the bearing housing (4) of the roll bearing (3), wherein the drive torque of the motor (6) can be transmitted to the roll (1,10) via the gear unit (8) and a coupling (11) arranged between the gear unit (8) and the roll bearing (3), the coupling (11) comprising a first coupling element (13) and a second coupling element (14) with the first coupling element (13) being connected to the roll (1,10) and the second coupling element (14) being connected to the gear unit (8), and a third coupling element (15) connects the first coupling element (13) and the second coupling element (14), wherein an alignment of the gear unit (8) deviating from the axis (7) of the rotatable roll (1,10) can be compensated by the third coupling element (15).
12. The drive arrangement according to claim 11, wherein a connecting element (9) is arranged between the bearing housing (4) and the gear unit (8), and the motor (6) is connected to the bearing housing (4) via the gear unit (8) and the connecting element (9).
13. The drive arrangement according to claim 12, wherein the drive torque of the motor (6) is transmitted from the motor (6) to the roll (1,10) via a coupling (11) arranged inside the connecting element (9).
14. The drive arrangement of claim 13, wherein the coupling (11) comprises a shrink disc (12) that is connected to the roll (1, 10) and the drive torque of the motor (6) is transmitted to the roll (1,10) via the shrink disc (12).
15. The drive arrangement of claim 11, wherein the coupling (11) comprises a shrink disc (12) that is connected to the roll (1, 10) and the drive torque of the motor (6) is transmitted to the roll (1,10) via the shrink disc (12).
16. The drive arrangement of claim 12, wherein the coupling (11) comprises a shrink disc (12) that is connected to the roll (1, 10) and the drive torque of the motor (6) is transmitted to the roll (1,10) via the shrink disc (12).
17. The drive arrangement according to claim 15, wherein the drive torque of the motor (6) acts around the axis (7) of the rotatable roll (1,10).
18. The drive arrangement according to claim 11, wherein the drive torque of the motor (6) acts around the axis (7) of the rotatable roll (1,10).
19. The drive arrangement according to claim 12, wherein the drive torque of the motor (6) acts around the axis (7) of the rotatable roll (1,10).
20. The drive arrangement according to claim 13, wherein the drive torque of the motor (6) acts around the axis (7) of the rotatable roll (1,10).
21. A twin wire press, comprising a first roll (1) rotatable about a first axis (7) for driving a first clothing and a second roll (10) rotatable about a second axis (7) for driving a second clothing, comprising: a roll bearing (3) with a bearing housing (4) connected to a frame (16) or a foundation, the roll bearing (3) mounting the first roll (1) whereby a drive torque of the motor (6) can be transmitted to the first roll (1); and a motor (6) indirectly connected to the bearing housing (4) of the roll bearing (3) at least via a gear unit (8), whereby a reaction torque of the motor (6) can be transmitted into the bearing housing (4) of the roll bearing (3), wherein the drive torque of the motor (6) can be transmitted to the first roll (1) via the gear unit (8) and a coupling (11) arranged between the gear unit (8) and the roll bearing (3), the coupling (11) comprising a first coupling element (13) and a second coupling element (14) with the first coupling element (13) being connected to the first roll (1) and the second coupling element (14) being connected to the gear unit (8), and a third coupling element (15) connects the first coupling element (13) and the second coupling element (14), wherein an alignment of the gear unit (8) deviating from the axis (7) of the rotatable first roll (1) can be compensated by the third coupling element (15).
22. A use of the drive arrangement according to claim 11 in a twin wire press to drive a clothing with the roll (1, 10).
Description
BRIEF DESCRIPTION OF THE DRAWINGS
[0023] The invention will now be described using the examples in the drawings.
[0024] FIG. 1 shows a drive arrangement according to the state of the art.
[0025] FIG. 2 shows the roll bearing of a drive arrangement according to the invention.
[0026] FIG. 3 shows the roll bearing and a coupling element of a drive arrangement according to the invention.
[0027] FIG. 4 shows the roll bearing and coupling elements of a drive arrangement according to the invention.
[0028] FIG. 5 shows the motor, gear unit and a coupling element of a drive arrangement according to the invention.
[0029] FIG. 6 shows a connecting element of a drive arrangement according to the invention connected to the bearing housing.
[0030] FIG. 7 shows a drive arrangement according to the invention on rolls arranged one above the other.
DETAILED DESCRIPTION
[0031] FIG. 1 shows a drive arrangement according to the state of the art. Two rolls 1′, 10′ are arranged one above the other. The rolls 1′, 10′ are each mounted via a roll bearing 3′, whereby the bearing housings 4′ of the roll bearings 3′ are connected to a frame 16′. On the drive side, the rolls 1′, 10′ are mounted in the roll bearings 3′ by means of roll necks 2′ and gear units 8′ are mounted on the roll necks 2′ in each case. Corresponding to the arrangement of the rolls 1′, 10′ one above the other, the gear units 8′ are also arranged one above the other, whereby a reaction torque is absorbed by a connection of the gear units 8′ by a torque bracket. The gear units 8′ are each driven by a motor 6′ attached to the frame 16′, the motor 6′ transmitting the drive torque to the gear unit 8′ via a cardan shaft.
[0032] FIG. 2 shows the roll bearing of a drive arrangement according to the invention. In this case, the roll 1,10, which is rotatable about the axis 7, is mounted via the roll bearing 3, wherein the roll 1,10 comprises a roll neck 2 and the roll neck 2 is mounted in the roll bearing 3. The roll bearing 3 comprises a bearing housing 4, whereby the roll bearing 3 or the roll bearing 3 is connected to a frame or a foundation via the bearing housing 4.
[0033] FIG. 3 shows the roll bearing and a coupling element of a drive arrangement according to the invention. The roll 1,10 is supported by the bearing 3, whereby the bearing housing 4 of the roll bearing 3 is connected to a frame or a foundation. A drive torque of a motor can be transmitted to the roll 1,10 via a coupling 11, wherein the coupling 11 comprises a first coupling element 13 and the first coupling element 13 is connected to the roll 1,10. The first coupling element 13 is designed as a coupling hub, for example. The coupling may further comprise a shrink disc 12 for transmitting the drive torque of the motor, wherein the shrink disc is connected to the roll, e.g. shrunk onto the roll neck 2, and the first coupling element 13 is connected to the shaft 1,10 via the shrink disc 12. For example, the first coupling element 13 is detachably connected to the shrink disc 12—for example, the coupling element 13 can be screwed to the shrink disc.
[0034] FIG. 4 shows the roll bearing and coupling elements of a drive arrangement according to the invention. In addition to FIG. 3, a third coupling element 15 is shown in FIG. 4. In this case, the first coupling element 13 is connected to the roll 1,10 via the shrink disc 12, whereby the third coupling element 15 allows the transmission of the drive torque of the motor 6 to the first coupling element 13 and a compensation of an orientation of the gear unit 8 deviating from the axis 7 of the rotatable roll 1,10. The connection between the first coupling element 13 and the third coupling element 15 is realised, for example, by a toothing. This design makes it easy to remove the third coupling part 15 from the first coupling part 13 connected to the shaft 1,10.
[0035] FIG. 5 shows the motor, gear unit and a coupling element of a drive arrangement according to the invention. In this case, the reaction torque of the motor 6 can be transmitted to the gear unit 8, whereby the housing of the motor 6 is connected to the housing of the gear unit 8 and thus the reaction torque can be transmitted. Further, the drive torque of the motor 6 is transmitted to the gear unit 8 and further to the second coupling element 14. The second coupling element 14 is firmly—e.g. screwed—connected to the gear unit 8 and is designed, for example, as a coupling hub. Here, the drive torque of the motor 6 acts around the axis 7 of the rotatable roll 1,10, or the components of the drive arrangement are arranged along the axis 7.
[0036] FIG. 6 shows a connecting element of a drive arrangement according to the invention connected to the bearing housing. In this case, the connecting element 9 is connected on one side to the bearing housing 4 and on the other side to the gear unit 8 and the motor 6 and the reaction torque of the motor 6 can be transmitted to the bearing housing 4 via the gear unit 8 and the connecting element 9. The connecting element 9 is designed as a gearbox lantern, whereby the connecting element 9 is arranged around the axis 7. Advantageously, the drive torque is transmitted from the motor 6 to the roll 1,10, the drive torque being transmitted from the motor 6 to the roll 1,10 via the gear unit 8 and the coupling 11, the coupling being arranged inside the connecting element 9 and the drive torque of the motor 6 acting around the axis 7 of the rotatable roll 1,10.
[0037] FIG. 7 shows a drive arrangement according to the invention on rolls arranged one above the other. A first roll 1 and a second roll 10 are shown, each with a drive arrangement according to the invention. Roll 1 and roll 10 are arranged one above the other, which is typically the case in twin wire presses, with roll 1 being part of a first clothing run and roll 10 being part of a second clothing run. Thus, the roll 1,10 is supported by the roll bearing 3, whereby the roll bearing 3 comprises a bearing housing 4 and the bearing housing is connected to a frame or a foundation. The components of the drive arrangement are arranged along the axis 7, with the drive torque of the motor 6 acting around the axis 7 of the rotatable roll 1,10. The drive torque of the motor 6 is transmitted to the roll 1,10 via the gear unit 8 and the coupling 11. At the same time, the reaction torque of the motor 6 is transmitted to the bearing housing via the gear unit 8 and the connecting element 9. For this purpose, the housing of the motor 6 is connected to the housing of the gear unit 8 with the connecting element 9 and further to the bearing housing 4. In FIG. 7 these connections are shown as bolted connections. Advantageously, the coupling 11 is arranged inside the connecting element 9. Thus, it is easily possible to remove the coupling element 9 together with the gear unit 8 and motor 6 from the bearing housing, whereby the coupling 11 is multi-sectional and at least one coupling part—e.g. the second coupling element 14, which is firmly connected to the gear unit 8—can be removed together with the coupling element 9. Thus, at least one coupling element—e.g. the first coupling element 13 which is firmly connected to the shaft 1,10—remains on the shaft 1,10.
[0038] The present invention offers numerous advantages, in particular an effective drive arrangement. This means good accessibility to the components of the drive arrangement and in particular to the roll, whereby the modular design allows easy separation of the roll and the rest of the drive arrangement. This makes the roll accessible without having to remove all the other components, such as the coupling, gear unit and motor, individually beforehand or having to remove the other components from the frame or the foundation. At the same time, the drive arrangement according to the invention allows for a minimal load on the shaft, since the weight of the other components of the drive arrangement, but also the reaction torque induced by the motor, is not transferred to the shaft.
REFERENCE NUMERALS
[0039] (1) Roll [0040] (2) Roll neck [0041] (3) Roll bearing [0042] (4) Bearing housing [0043] (5) Torque bracket [0044] (6) Motor [0045] (7) Rotation axis [0046] (8) Gear unit [0047] (9) Connecting element [0048] (10) Roll [0049] (11) Coupling [0050] (12) Shrink disc [0051] (13) First coupling element [0052] (14) Second coupling element [0053] (15) Third coupling element [0054] (16) Frame
