EP4565381A1 - Walzwerksanordnung zur übertragung hoher drehmomente - Google Patents
Walzwerksanordnung zur übertragung hoher drehmomenteInfo
- Publication number
- EP4565381A1 EP4565381A1 EP23751262.9A EP23751262A EP4565381A1 EP 4565381 A1 EP4565381 A1 EP 4565381A1 EP 23751262 A EP23751262 A EP 23751262A EP 4565381 A1 EP4565381 A1 EP 4565381A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- rolling mill
- roller
- length
- changing
- side joint
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B35/00—Drives for metal-rolling mills, e.g. hydraulic drives
- B21B35/14—Couplings, driving spindles, or spindle carriers specially adapted for, or specially arranged in, metal-rolling mills
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B2275/00—Mill drive parameters
- B21B2275/10—Motor power; motor current
- B21B2275/12—Roll torque
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B35/00—Drives for metal-rolling mills, e.g. hydraulic drives
- B21B35/14—Couplings, driving spindles, or spindle carriers specially adapted for, or specially arranged in, metal-rolling mills
- B21B35/142—Yielding spindle couplings; Universal joints for spindles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B35/00—Drives for metal-rolling mills, e.g. hydraulic drives
- B21B35/14—Couplings, driving spindles, or spindle carriers specially adapted for, or specially arranged in, metal-rolling mills
- B21B35/142—Yielding spindle couplings; Universal joints for spindles
- B21B35/143—Yielding spindle couplings; Universal joints for spindles having slidably-interengaging teeth, e.g. gear-type couplings
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B35/00—Drives for metal-rolling mills, e.g. hydraulic drives
- B21B35/14—Couplings, driving spindles, or spindle carriers specially adapted for, or specially arranged in, metal-rolling mills
- B21B35/142—Yielding spindle couplings; Universal joints for spindles
- B21B35/145—Hooke's joints or the like with each coupling part pivoted with respect to an intermediate member
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B35/00—Drives for metal-rolling mills, e.g. hydraulic drives
- B21B35/14—Couplings, driving spindles, or spindle carriers specially adapted for, or specially arranged in, metal-rolling mills
- B21B35/148—Spindle carriers or balancers
Definitions
- EP 3227578 B1 is known from the prior art, which describes a cardan shaft that can change its length telescopically. Use in a roll stand with two cardan shafts and corresponding precautions for operating cardan shafts arranged next to one another is not described.
- JP 2013 136070 is known from the prior art, which describes two parallel-arranged cardan shafts, each of which includes a device for changing the length, the devices for changing the length also being arranged parallel to one another.
- DE 10316261 is known from the prior art, which also shows two cardan shafts with shaft journals for changing the length.
- the devices for changing the length are arranged parallel to one another.
- the roller-side joints can have a maximum of the same diameter as the work rolls, since the upper and lower rollers only have a minimal diameter when rolling thin sheets and when calibrating or have no roll gap at all. Due to this limitation, roller-side joints have the greatest risk of failure.
- corresponding shaft pieces so-called “spacers”, are used in the prior art to create space for the joints, with the roller arrangement becoming longer overall.
- the object of the invention is to provide a particularly compact rolling mill arrangement with improved torque capacity of the cardan shafts in order to be able to transmit large torques from the drive to the work rolls.
- the cardan shafts usually have the greatest risk of failure at the joints on the roller side, so it is also the object of the invention to provide a rolling mill arrangement that allows the installation of roller-side joints with a larger torque capacity.
- the task is carried out with a rolling mill arrangement, wherein the first roll-side joint has a first distance from the first work roll and the second roll-side joint has a second distance from the second work roll, the first and second distances being different by 0.5 m to 4 m are, and wherein in at least one cardan shaft a device for changing the length is arranged between the roller-side joint and the work roll. and on the other cardan shaft a further device for changing the length is arranged between the roller-side joint and the drive-side joint.
- the different distance advantageously enables the joints to be arranged next to one another.
- the joints of the propeller shaft require a larger design compared to shafts and/or devices for changing length in order to transmit the same torque without exceeding their own load limit.
- the joints are arranged parallel, so the joint diameter cannot be larger than the roller diameter, otherwise the two roller-side joints would collide.
- a shaft or length changing device with a smaller diameter compared to the work roll diameter, space is created to accommodate a larger roll side joint.
- the use of a device for changing the length is important for the cardan shaft in order to compensate for changes in the roller position without these being passed on to the drive as constraining forces.
- the changes in length in the work rolls of the rolling stand can be caused by thermal expansion.
- active displacement of the work rolls along the axis of rotation is possible, in particular to compensate for inclinations and differences in thickness across the width of the rolling stock during the rolling process.
- a device for changing the length can telescopically change the length along the axis under load or in the no-load state.
- the device for changing the length is also known as a telescopic function, telescopic shaft or length compensation.
- a rolling mill arrangement is also advantageous, wherein the device for changing the length is arranged on the lower joint shaft between the lower roller-side joint and the lower work roll.
- This bend can be detrimental to the material stress on the connecting device between the roller-side joint and the work roll and/or the device for changing the length.
- Another advantageous effect of the arrangement at the bottom Shaft is better accessibility and the ability to attach a support device for support.
- a rolling mill arrangement is also advantageous in which the device for changing the length is supported by means of a support device.
- a support device can advantageously counteract the bending described.
- the support device advantageously comprises a roller which is pressed against the surface of the device for changing the length, the pressing force being selected such that a bend is at least largely compensated.
- This support device can also contain a plurality of rollers, which together perform the support function and, if necessary, also guide the device for changing the length laterally or completely circumferentially on the axis of rotation. Furthermore, several support rollers can be arranged one behind the other in the axial direction in order to uniformly reinforce the support function.
- the support device is advantageously designed as a support spindle and advantageously comprises at least one rolling bearing in order to absorb the supporting forces introduced.
- the rolls of the support spindle are advantageously smaller than the press rolls of the rolling mill arrangement, and usually have a diameter of 10 - 40% of the press rolls.
- a rolling mill arrangement is also advantageous, wherein the rolling mill arrangement comprises a further device for changing the length, the further device for changing the length being arranged between the two joints of that cardan shaft which does not have a device for changing the length between the roller-side joint and the work roll.
- both cardan shafts in the rolling mill arrangement it is common for both cardan shafts in the rolling mill arrangement to have a device for length compensation. In contrast to the prior art, however, only one of these devices for changing the length is arranged between the joints of the cardan shaft.
- a rolling mill arrangement is also advantageous, with at least one of the roller-side joints having a diameter that is 3% to 30% larger than the diameter of the connected work roll.
- the diameter of the joint refers to the largest extent of the joint perpendicular to at least one axis of rotation, the enveloping circle.
- the diameter can theoretically be increased by deflecting the cardan shaft, since the deflection causes part of the joint to follow a different axis of rotation and thus takes up more space in one direction, but this is usually achieved by appropriately shaping the joint forks by rounding them centrally Pivot point of the joint is avoided.
- the roll gap is included in the extension as an imaginary line of the so-called pass line, which characterizes the contact surface of the area through which the rolling stock passes the rolling mill arrangement.
- At least one roller-side joint, preferably the lower one, can protrude beyond the pass line in an advantageous embodiment of the invention.
- a rolling mill arrangement is also advantageous, with the diameter (DG) of the roller-side joints being in the range of 40 cm to 150 cm, with the cardan shaft being suitable for transmitting a torque of 200 knm to 15,000 knm.
- Providing a rolling mill arrangement with high torque capacity of the cardan shafts can be achieved by using larger joints.
- the design effort and the larger joints only make economic sense if the rolling mill arrangement has to transmit large torques. This is particularly the case in rolling mills for metal processing and/or sheet metal production. It is therefore particularly advantageous to use it with torques of 400 - 15,000 knm and diameters in the range 50 - 130 cm.
- a rolling mill arrangement is also advantageous, with both cardan shafts being supported by at least one support device.
- the use of at least one support spindle can reduce bending or at least reduce the bending moment at the connecting hubs.
- An arrangement of several support spindles on the cardan shafts can also be advantageous in order to relieve the connecting hub and the joint bearings of all cardan shafts from high weight forces and the resulting bending moments.
- the design of the device for changing the length should enable a telescopic-like change in length that is as low-friction as possible, while at the same time ensuring efficient transmission of large torques.
- the change in length may also advantageously allow only a small amount of play; toothing parallel to the axis of rotation has proven to be particularly advantageous.
- the joints can advantageously be designed either as universal joints, as flat pin joints or as toothed coupling joints.
- Other types of cardan shafts cannot withstand the stresses of a rolling mill arrangement for metal processing.
- FIG. 1 shows a schematic representation, not to scale, of a rolling mill arrangement 1 from the prior art.
- the rolling mill includes a first work roll 2 and a second work roll 3, which are suitable for rolling rolling stock, in particular metal workpieces, in a roll gap.
- the nip is shown in the extension as a dashed line of the so-called pass line 21.
- the work rolls 2, 3 are connected to the first drive device 13 and the second drive device 14 by means of a first cardan shaft 4 and a second cardan shaft 5.
- the cardan shafts each include a roller-side joint 6.7, a device for changing the length 12 and a drive-side joint 8.9.
- the device for changing the length 12 is arranged between the roller-side joint 6.7 and the drive-side joint 8.9. No part of the drive shaft 4.5 can protrude beyond the pass line, otherwise the drive shafts would collide. All joints have a smaller diameter compared to the diameter of the work rolls 2.3.
- FIG. 2 shows a schematic representation, not to scale, of a rolling mill arrangement 1 with features of the invention.
- the rolling mill includes a first work roll 2 and a second work roll 3, which are suitable for rolling rolling stock, in particular metal workpieces, in a roll gap.
- the nip is shown in the extension as a dashed line of the so-called pass line 21.
- the work rolls 2, 3 are connected to the first drive device 13 and the second drive device 14 by means of a first cardan shaft 4 and a second cardan shaft 5.
- the cardan shafts each include a roller-side joint 6.7, a device for changing the length 12 and a drive-side joint 8.9.
- the first roller-side joint 6 is connected to the first work roll 2 at a first distance 10.
- the second work roll 3 is first with a device for changing the length 12 and then with the second roll-side joint 7.
- the rolling mill arrangement 1 is as shown in relation to gravity g shown arranged, whereby the second cardan shaft 5 is then the lower cardan shaft 16.
- the second roller-side joint 7 is then the lower roller-side joint 17 and the second work roll 3 is the lower work roll 18.
- the device for changing the length which is arranged between the second work roll 3, 18 and the roller-side joint 7, 17, is shown in FIG a support device 15 supported.
- the support device 15 is only shown as an active support roller, but can include at least one bearing, in particular by means of roller bearings, and a holder, in particular an adjustable holder.
- the support device can also comprise a plurality of support rollers or support spindles, not shown in the picture, with the axes of rotation of the support device 15 running parallel to the axis of rotation of the work roll or the supported device for changing the length 12.
- the second distance 11 is shown as the distance between the second or lower work roll 3.18 and the roll-side or lower joint 7.17.
- the offset arrangement of the two roller-side joints 6,7 creates enough space for the roller-side joints 6,7 to protrude beyond the pass line 21 without colliding with the other cardan shaft.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Metal Rolling (AREA)
- Reduction Rolling/Reduction Stand/Operation Of Reduction Machine (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102022119330.6A DE102022119330A1 (de) | 2022-08-02 | 2022-08-02 | Walzwerksanordnung zur Übertragung hoher Drehmomente |
| PCT/EP2023/070552 WO2024028156A1 (de) | 2022-08-02 | 2023-07-25 | Walzwerksanordnung zur übertragung hoher drehmomente |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP4565381A1 true EP4565381A1 (de) | 2025-06-11 |
Family
ID=87557455
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP23751262.9A Pending EP4565381A1 (de) | 2022-08-02 | 2023-07-25 | Walzwerksanordnung zur übertragung hoher drehmomente |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US20250178055A1 (de) |
| EP (1) | EP4565381A1 (de) |
| CN (1) | CN119585057A (de) |
| DE (1) | DE102022119330A1 (de) |
| WO (1) | WO2024028156A1 (de) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19748450A1 (de) | 1997-11-03 | 1999-05-12 | Gkn Gelenkwellenbau Gmbh | Kreuzgelenkwelle und Antriebsanordnung mit zwei Kreuzgelenkwellen |
| EP1393826A1 (de) | 2002-08-27 | 2004-03-03 | Spicer Gelenkwellenbau GmbH & Co. KG | Kreuzgelenkwelle |
| GB2400430A (en) * | 2003-04-08 | 2004-10-13 | Spicer Gelenkwellenbau Gmbh | Coupling hub with centring means comprising resilient wall portions |
| EP1530685A1 (de) | 2002-08-23 | 2005-05-18 | Voith Turbo GmbH & Co. KG | Anschlusselement zur verbindung von gelenkspindeln mit anschlussaggregaten, insbesondere trefferhalterung mit konischer zentrierung |
| JP2013136070A (ja) * | 2011-12-28 | 2013-07-11 | Kobe Steel Ltd | 多段圧延機の駆動機構 |
| EP3227578A1 (de) | 2014-12-03 | 2017-10-11 | Voith Patent GmbH | Gelenkwelle, insbesondere kreuzgelenkwelle |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10306542B3 (de) * | 2003-02-13 | 2004-06-24 | Sms Demag Ag | Gleitstein für Gelenkspindeln |
| AT413083B (de) * | 2003-09-29 | 2005-11-15 | Voest Alpine Ind Anlagen | Walzwerksantrieb mit einer ein- und entkoppeleinrichtung |
| DE102009031324A1 (de) * | 2009-06-30 | 2011-01-05 | Voith Patent Gmbh | Walzenantrieb und Walzgerüst mit einem solchen |
-
2022
- 2022-08-02 DE DE102022119330.6A patent/DE102022119330A1/de active Pending
-
2023
- 2023-07-25 EP EP23751262.9A patent/EP4565381A1/de active Pending
- 2023-07-25 CN CN202380055551.5A patent/CN119585057A/zh active Pending
- 2023-07-25 WO PCT/EP2023/070552 patent/WO2024028156A1/de not_active Ceased
-
2025
- 2025-01-30 US US19/041,575 patent/US20250178055A1/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19748450A1 (de) | 1997-11-03 | 1999-05-12 | Gkn Gelenkwellenbau Gmbh | Kreuzgelenkwelle und Antriebsanordnung mit zwei Kreuzgelenkwellen |
| EP1530685A1 (de) | 2002-08-23 | 2005-05-18 | Voith Turbo GmbH & Co. KG | Anschlusselement zur verbindung von gelenkspindeln mit anschlussaggregaten, insbesondere trefferhalterung mit konischer zentrierung |
| EP1530685B1 (de) * | 2002-08-23 | 2006-09-27 | Voith Turbo GmbH & Co. KG | Anschlusselement zur verbindung von gelenkspindeln mit anschlussaggregaten, insbesondere trefferhalterung mit konischer zentrierung |
| EP1393826A1 (de) | 2002-08-27 | 2004-03-03 | Spicer Gelenkwellenbau GmbH & Co. KG | Kreuzgelenkwelle |
| GB2400430A (en) * | 2003-04-08 | 2004-10-13 | Spicer Gelenkwellenbau Gmbh | Coupling hub with centring means comprising resilient wall portions |
| JP2013136070A (ja) * | 2011-12-28 | 2013-07-11 | Kobe Steel Ltd | 多段圧延機の駆動機構 |
| EP3227578A1 (de) | 2014-12-03 | 2017-10-11 | Voith Patent GmbH | Gelenkwelle, insbesondere kreuzgelenkwelle |
| EP3227578B1 (de) * | 2014-12-03 | 2019-09-18 | Voith Patent GmbH | Gelenkwelle, insbesondere kreuzgelenkwelle |
Non-Patent Citations (2)
| Title |
|---|
| ANONYMOUS: "MAIN DRIVE OF THE HEAVY PLATE MILL", BUMA ENGINEERING, 1 January 2013 (2013-01-01), pages 1 - 6, XP093322603 |
| See also references of WO2024028156A1 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN119585057A (zh) | 2025-03-07 |
| DE102022119330A1 (de) | 2024-02-08 |
| US20250178055A1 (en) | 2025-06-05 |
| WO2024028156A1 (de) | 2024-02-08 |
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