EP3393691A1 - Vorrichtung zum entzundern eines werkstücks - Google Patents
Vorrichtung zum entzundern eines werkstücksInfo
- Publication number
- EP3393691A1 EP3393691A1 EP16819910.7A EP16819910A EP3393691A1 EP 3393691 A1 EP3393691 A1 EP 3393691A1 EP 16819910 A EP16819910 A EP 16819910A EP 3393691 A1 EP3393691 A1 EP 3393691A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- nozzle
- motors
- rotor
- workpiece
- fluid
- 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.)
- Granted
Links
- 239000012530 fluid Substances 0.000 claims abstract description 19
- 238000005098 hot rolling Methods 0.000 claims abstract description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 11
- 230000000712 assembly Effects 0.000 abstract description 8
- 238000000429 assembly Methods 0.000 abstract description 8
- 239000007921 spray Substances 0.000 abstract 1
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 description 4
- 238000012423 maintenance Methods 0.000 description 4
- 238000005096 rolling process Methods 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 3
- 238000004891 communication Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000000889 atomisation Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000003252 repetitive effect Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B45/00—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
- B21B45/04—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills for de-scaling, e.g. by brushing
- B21B45/08—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills for de-scaling, e.g. by brushing hydraulically
Definitions
- the invention relates to a device for descaling a workpiece, preferably a hot rolling stock.
- the apparatus has a plurality of nozzle assemblies, each having a nozzle head with one or more nozzles and a nozzle rotor connected to the nozzle head, wherein the nozzle rotor is adapted to rotatably drive the associated nozzle head.
- a scale scrubber in a hot rolling mill is an assembly intended to remove scale, i. about impurities of iron oxide, is provided by the surface of the rolling stock.
- the scale is removed via pressurized water, which is injected from several nozzles onto the rolling stock.
- DE 43 28 303 A1 describes a scale scrubber having nozzle rows with a plurality of nozzle heads. The nozzle heads are rotatably provided by rotors and are individually rotated by electric motors.
- Such scale scrubbers are also referred to as “rotor scale scrubbers" or “rotor descaling devices”. Another rotor descaling device is disclosed in WO 97/27955 A1.
- An object of the invention is to provide an apparatus for descaling a workpiece, preferably a hot rolling stock, with improved reliability and reduced maintenance with excellent descaling results.
- the device according to the invention serves for descaling a workpiece, which is preferably a hot rolling stock.
- the apparatus for descaling a thin steel rolling stock may be arranged from both sides.
- the apparatus may form an assembly in a hot rolling machine.
- the apparatus has a plurality of nozzle assemblies each having a nozzle head with one or more nozzles and a nozzle rotor connected to the nozzle head.
- the nozzle head is preferably fixed in a rotationally fixed manner to the associated nozzle rotor.
- Nozzle head and nozzle red can be designed in several parts or partially or completely in one piece.
- a fluid with pressure preferably pressurized water
- the nozzle rotors preferably have one or more fluid channels, which can be connected to a fluid distributor, which in turn can communicate with a fluid reservoir.
- a fluid distributor which in turn can communicate with a fluid reservoir.
- the apparatus further includes one or more motors provided for rotatably driving the nozzle rotors.
- the number of nozzle arrangements i. the nozzle rotors, larger than the number of motors.
- the plurality of nozzle rotors are connected to the one or more motors via a drive unit.
- the nozzle rotors are interconnected via the drive unit, there is an excellent synchronization of the individual nozzle heads, which contributes to an optimal Entzu notedstex.
- the reduced number of motors simplifies the technology, which improves reliability and reduces maintenance. In many places, standard components can be used, such as three-phase motors with simple speed control, which further simplifies the technical structure and further improves the reliability.
- each nozzle rotor preferably has a rotary feedthrough in order to supply the fluid from a fluid distributor to the respective nozzle heads.
- the rotary unions must ensure safe fluid transport into the nozzle heads.
- the rotary unions are designed for a rotational speed of up to 1500 rpm, more preferably 2000 rpm, and a fluid pressure / water pressure of up to 50 to 200 bar, more preferably up to 400 bar.
- the motors are electric motors, thereby providing a quiet and reliable single-speed control drive.
- the transmission has a plurality of bevel gears, which with a drive shaft, the one-sided or both sides of one or more of the motors navantreibbar is connected.
- the angular gear are each connected to a nozzle rotor, so that the nozzle rotors branch off from the drive shaft. Due to the juxtaposition of angular gears, the power of the drive shaft is branched off technically reliable on several nozzle arrangements. If the drive shaft is driven on both sides by a respective motor, the motors preferably run synchronously in order to avoid a torsion of the drive shaft and an overload of the motors.
- the drive shaft may have one or more clutches and / or differential gears.
- the drive shaft must therefore not be formed in one piece.
- the nozzle rotors of this embodiment are particularly preferably equipped with angled rotary unions that meet requirements of up to 2000 U / min and 50 to 200 bar.
- the axes of rotation of the nozzle rotors are arranged parallel to one another, the rotor pinions lie in a plane perpendicular to the axes of rotation of the nozzle rotors and perpendicular to a drive axis of the motor or the drive axes of the motors.
- Such a construction is extremely resilient, wear-resistant, dimensionally stable and promises a long service life.
- adjacent nozzle rotors are preferably provided in opposite directions. For this reason, in the above construction, preferably two counter-rotating bevel gears are provided between adjacent rotor pinions.
- the figure shows an embodiment of a device for descaling a workpiece, wherein the device comprises a transmission with angular gears and a drive shaft.
- the figure shows schematically a first embodiment of a device for descaling a workpiece.
- the descaling device is designated by the reference numeral 1 and the workpiece by the reference symbol W.
- the device 1 has a plurality-in the figure by way of example four-nozzle arrangements 10, which are coupled to one another via a drive unit 20. Also connected to the drive unit 20 are two electric motors 30 which provide a torque for driving the nozzle assemblies 10.
- Each nozzle assembly 10 has a nozzle head 1 1 with one or more nozzles 12 and a nozzle rotor 13 which is fixedly connected to the associated nozzle head 12 on. Via the nozzles 12 pressurized water is sprayed onto the workpiece W, as shown in the figure.
- the nozzles 13 over Lines 16 in the interior of the nozzle head 1 1 and at least partially in the interior of the associated nozzle rotor 13 with a pressure water manifold (also referred to as fluid manifold) in fluid communication.
- the pressurized water distributor is designated by the reference numeral 40 and has, for example, a plurality of distributor lines 41, which branch off from a main line 42.
- the trunk line 42 may be in fluid communication with a water reservoir, not shown in the figure.
- a (angled) rotary unions 14, which are part of the nozzle rotors 13 the pressurized water is introduced from the distribution lines 41 in the lines 16 of the nozzle assemblies 10. From there, the pressurized water enters the nozzle heads 1 1 and is discharged via the nozzles 12 to the outside on the workpiece W.
- the drive unit 20 has a drive shaft 21 and a plurality of bevel gears 22, the number of which is equal to the number of nozzle arrangements 10.
- the angle gear 22 are connected to the drive shaft 21 and a respective nozzle rotor 13, so that the torque of the drive shaft 21 is transmitted to the individual nozzle rotors 13.
- the nozzle rotors 13 branch off to a certain extent via the angle gear 22 from the drive shaft 21.
- the drive shaft 21 is driven on both sides via a respective motor 30.
- the use of two motors - left and right in the figure - is particularly preferred in the case of a large number of nozzle assemblies 10 connected to the drive shaft 21.
- the torque of a single motor 30 may be transmitted to one or both ends of the drive shaft 21 via a drive unit, not shown. Also in this case there is a double-sided drive. In the case of fewer nozzle arrangements 10 may optionally be dispensed with a two-sided drive.
- a plurality of clutches and / or intermediate gear 23 are provided in the drive shaft 21.
- the reduced number of motors 30 simplifies the technique, thereby improving the reliability of the device 1 and reducing maintenance.
- standard components can be used, such as motors 30 with simple speed control, which further simplify the technical structure and further improve the reliability.
- all individual features illustrated in the embodiment may be combined and / or interchanged without departing from the scope of the invention.
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102015226658.3A DE102015226658A1 (de) | 2015-12-23 | 2015-12-23 | Vorrichtung zum Entzundern eines Werkstücks |
PCT/EP2016/082138 WO2017108926A1 (de) | 2015-12-23 | 2016-12-21 | Vorrichtung zum entzundern eines werkstücks |
Publications (2)
Publication Number | Publication Date |
---|---|
EP3393691A1 true EP3393691A1 (de) | 2018-10-31 |
EP3393691B1 EP3393691B1 (de) | 2019-08-14 |
Family
ID=57681587
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP16819910.7A Active EP3393691B1 (de) | 2015-12-23 | 2016-12-21 | Vorrichtung zum entzundern eines werkstücks |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP3393691B1 (de) |
DE (1) | DE102015226658A1 (de) |
WO (1) | WO2017108926A1 (de) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN108580566A (zh) * | 2017-12-29 | 2018-09-28 | 南京钢铁股份有限公司 | 一种高压除鳞冲洗集管及喷嘴的方法 |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4937007B1 (de) * | 1968-08-28 | 1974-10-04 | ||
DE69314275T2 (de) * | 1992-07-31 | 1998-04-30 | Danieli Off Mecc | Wasser verwendende Entzunderungsvorrichtung |
DE4328303C2 (de) | 1992-12-23 | 1997-02-13 | Juergen Gaydoul | Einrichtung zum Entzundern von warmem Walzgut |
AT406234B (de) | 1996-02-02 | 2000-03-27 | Voest Alpine Ind Anlagen | Verfahren zum entzundern eines werkstückes |
-
2015
- 2015-12-23 DE DE102015226658.3A patent/DE102015226658A1/de not_active Withdrawn
-
2016
- 2016-12-21 EP EP16819910.7A patent/EP3393691B1/de active Active
- 2016-12-21 WO PCT/EP2016/082138 patent/WO2017108926A1/de active Search and Examination
Also Published As
Publication number | Publication date |
---|---|
EP3393691B1 (de) | 2019-08-14 |
DE102015226658A1 (de) | 2017-06-29 |
WO2017108926A1 (de) | 2017-06-29 |
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