EP3074148A1 - Device for adjusting a roll in a roll stand - Google Patents
Device for adjusting a roll in a roll standInfo
- Publication number
- EP3074148A1 EP3074148A1 EP14802876.4A EP14802876A EP3074148A1 EP 3074148 A1 EP3074148 A1 EP 3074148A1 EP 14802876 A EP14802876 A EP 14802876A EP 3074148 A1 EP3074148 A1 EP 3074148A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- drive shaft
- motor
- pressure spindle
- roll
- receiving space
- 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
- 239000000314 lubricant Substances 0.000 claims description 31
- 238000005096 rolling process Methods 0.000 claims description 13
- 230000001050 lubricating effect Effects 0.000 claims description 3
- 230000008878 coupling Effects 0.000 claims description 2
- 238000010168 coupling process Methods 0.000 claims description 2
- 238000005859 coupling reaction Methods 0.000 claims description 2
- 238000007599 discharging Methods 0.000 claims 1
- 238000011144 upstream manufacturing Methods 0.000 abstract description 3
- 238000005461 lubrication Methods 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 241001465382 Physalis alkekengi Species 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 210000003746 feather Anatomy 0.000 description 1
- ZZUFCTLCJUWOSV-UHFFFAOYSA-N furosemide Chemical compound C1=C(Cl)C(S(=O)(=O)N)=CC(C(O)=O)=C1NCC1=CC=CO1 ZZUFCTLCJUWOSV-UHFFFAOYSA-N 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B31/00—Rolling stand structures; Mounting, adjusting, or interchanging rolls, roll mountings, or stand frames
- B21B31/16—Adjusting or positioning rolls
- B21B31/20—Adjusting or positioning rolls by moving rolls perpendicularly to roll axis
- B21B31/22—Adjusting or positioning rolls by moving rolls perpendicularly to roll axis mechanically, e.g. by thrust blocks, inserts for removal
- B21B31/24—Adjusting or positioning rolls by moving rolls perpendicularly to roll axis mechanically, e.g. by thrust blocks, inserts for removal by screws
-
- 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
- B21B45/02—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 lubricating, cooling, or cleaning
- B21B45/0239—Lubricating
Definitions
- the invention relates to a device for adjusting a roll in a roll stand of a roll stand. Moreover, the invention relates to such a roll stand for rolling in particular metallic rolling stock.
- the device comprises a motor in the form of a hydraulic motor which rotates a pressure spindle via a worm gear.
- the pressure spindle is rotatably mounted on the upper side of a roll stand of the roll stand with a vertical axis of rotation. During its rotation, the pressure spindle moves in the vertical direction and acts on the chock of the upper support roller. In this way, the contact pressure on the support and work rolls and / or their position and thus also the size of the roll gap can be adjusted as desired by means of the motor.
- the said worm gear engages the outside of the pressure spindle; It is costly, space consuming and requires a separate oil lubrication. Based on this prior art, the invention has the object, a known device for hiring a roller in one
- page 1 Further develop the roll stand of a roll stand and a corresponding known roll stand to the effect that the worm gear and its oil lubrication can be saved.
- This object is achieved with respect to the device for adjusting the roller by the subject matter of patent claim 1.
- This is characterized in that the pressure spindle has on its motor-side end face an axially aligned cylindrical receiving space, that the drive shaft protrudes into the receiving space of the pressure spindle and that the pressure spindle and the drive shaft are rotationally coupled together in the interior of the receiving space.
- motor-side end face refers to that end face of the pressure spindle which faces the motor.
- the end face on the motor side faces the front side, which faces the chock of the roller.
- the claimed use of a hydraulic motor or a torque motor offers in comparison to z.
- a conventional electric motor not torque motor, the advantage that larger torques can be applied without additional gear.
- the already existing on the rolling stand for roll gap adjustment hydraulic system can also be used to operate the hydraulic motor.
- a positive connection between the pressure spindle and the drive shaft is provided in the interior of the receiving space.
- the positive connection between the pressure spindle and the drive shaft is realized in that the receiving space of the pressure spindle is designed as a splined hub with a splined hub profile and that the drive shaft is designed in the form of a splined shaft for positive engagement in the splined hub profile.
- the positive connection is realized in that the receiving space as Dahlkantnabe with a polygonal profile and the drive shaft are formed as Dahlkantwelle each having the same number of edges for positive engagement of the Learnkantwelle in the Learnkantnabe the pressure spindle.
- the realization of the splined hub or Dahlkantnabe takes place advantageously in that on the motor side end of the pressure spindle in the axial direction a Keilnabenhülse or Dahlkantnabenhülse is used, which is rotatably and preferably also in the axial direction 29iebeêt connected to the pressure spindle and which the receiving space with the splined hub profile or the Dahlkantprofil trains.
- the use of the wedge hub sleeve offers the advantage that it is easier and less expensive to produce than the formation of the splined hub profile directly on the inside of the receiving space of the pressure spindle.
- the wedge hub sleeve has the advantage that it can be easily replaced when wearing the splined hub profile as a wearing part.
- the same advantages apply analogously to the Dahlkantnabenhggse.
- the roll stand comprises a thrust bearing for rotatably supporting the drive shaft and the thrust bearing is held by means of a mounted on the upper side of the roll stand first support means in a fixed predetermined vertical distance to the top of the roll stand.
- the rotatably mounted drive shaft is held in a fixed vertical relative position, in particular in a fixed predetermined vertical distance to the roll stand.
- the formation of the thrust bearing as spherical roller bearings allows the drive shaft advantageously degrees of freedom in the radial direction, z. B. a tumbling motion. By granting these degrees of freedom, a mechanical overload of the drive shaft is prevented even in non-circular rotational movement of the pressure spindle.
- the thrust bearing is arranged in a lubricant chamber, which is supplied via a lubricant inlet with lubricant.
- a lubricant inlet with lubricant.
- an overflow for the lubricant is arranged, which ensures that the level of the lubricant inside the lubricant chamber does not exceed a predetermined level, specified by the height of the overflow.
- the running through the overflow excess lubricant is inventively of a cup-shaped lid on the motor side
- Figure 1 is a schematic view of the device according to the invention.
- FIG. 2 shows a detailed representation of FIG. 1. shows.
- FIG. 1 shows the device 100 according to the invention for setting a roll in a roll stand 210 of a roll stand.
- the device comprises a motor 110, preferably a torque motor or a hydraulic motor, in short called a hydrometer, for providing a setting position for the roller.
- the motor 1 10 is arranged above the stand 210 and is supported there by a second support means 250 opposite the top of the roll stand 210, wherein the second support means in turn is supported on a first support means 240. With the help of the support means, the motor 1 10 is positioned at a fixed distance d2 to the top of the roll stand 210.
- the hydraulic motor is axially aligned with a drive shaft 120, which is rotationally driven by it. Between the drive shaft 120 and the motor, a clutch 150 is preferably provided, which is arranged within the second support means.
- the drive shaft 120 is in an axial bearing 230, which, as shown in Figure 1, for example in the transition region
- page 5 between the first and second support means 240, 250 is disposed at a predetermined height d1 above the top of the roll stand 210. Due to the bearing of the drive shaft 120 in the axial bearing, the drive shaft is also held in a predefined relative position or height relative to the roll stand 210.
- the drive shaft 120 serves to transmit a predetermined by the motor 1 10 torque to a pressure spindle 130, which in turn serves to transmit the contact force to the roller.
- the shaft of the engine 1 10 on one side of the clutch, the drive shaft 120 on the other side of the clutch and the rotary spindle 130 are arranged axially in series; that is their respective center lines are aligned in the axial, here vertical direction W.
- the hydro or torque motor is preferably designed for applying a rated torque in roughing stands of a conventional hot strip mill of> 4 kNm or heavy sheet metal stands of> 30 kNm. These values are valid under the assumption of very favorable, low friction conditions; for safety reasons, these values for the parktician application still have to be charged with a safety factor.
- an axially aligned cylindrical receiving space 140 is formed for receiving the drive shaft 120 in the assembled state of the device.
- the drive shaft 120 with the pressure spindle 130 in the interior of the receiving space 140 preferably positively, rotationally coupled.
- the pressure spindle 130 is provided on the inside of its receiving space 140 as a splined hub, that is distributed over the circumference with a splined hub profile, and at the same time the drive shaft is designed in the form of a splined shaft for engaging in the spline profile of the pressure spindle 130.
- the positive connection also by training the recording room
- the pressure spindle be realized as Dahlkantnabe and the drive shaft as a polygonal shaft, wherein the polygonal shaft with the Dahlkantnabe can be brought into engagement.
- the pressure spindle acts on the chock of the roller in the rolling stand via a so-called pressure pot 160.
- the pressure spindle 130 acts via the pressure cup 160 on the bearing bushes, also called chocks, the work rolls, while it acts on a quarto scaffolding, comprising two working and two support rollers on the chocks of the support rollers.
- the pressure pot 160 serves to decouple the rotational movement of the spindle from their simultaneous vertical movement, so that acts on the respective chock of the roller to be set a pure vertical movement without rotation portion.
- the vertical movement of the pressure spindle 130 is effected by a pressure nut 170, which is non-rotatably installed in the roll stand 210.
- the pressure spindle 130 is screwed into the pressure nut 170.
- the pressure nut simultaneously causes the vertical movement of the pressure spindle, whereby the setting position for the arranged below the pressure pot 160 chock of the roller can be adjusted.
- FIG. 2 shows in more detail some of the elements of the device according to the invention already shown in FIG.
- the splined hub 134 can be seen on the inside of the cylindrical receiving space 140, wherein this splined hub profile is formed in a splined hub sleeve 135, which is shown in Figure 2 both in longitudinal section and in cross section.
- the wedge hub sleeve in turn, can be arranged in the receiving space 140, for example via feather keys, not shown in FIG.
- the splined shaft 120 is configured, which engages in the spline hub for the purpose of transmitting the torque.
- a lubricant chamber 245 is arranged, which is supplied with lubricant via a lubricant inlet 246.
- the lubricant is used in particular for lubricating the axial bearing 230.
- an overflow 247 is formed, which ensures that lubricant in the lubricant chamber 245 does not exceed a level defined by the height of the overflow.
- the cover 136 has a circular opening for passing through the spline 120. Between the spline 120 and the edge of the circular opening of the cover, an annular gap 248 is formed through which the lubricant flows further down into the receiving space 140 for lubricating the there or wedge gear, each consisting of hub and shaft.
- the lubricant then flows through a lubricant outlet 249 in the pressure screw in a second annular gap 270 between the pressure spindle 130 and a bore in the roll stand 210, in which the pressure spindle is mounted.
- a position sensor 180 may be arranged stationary for detecting the respective current position of the roller 260.
- the position sensor know, for example, a donor rod 182, which is preferably guided in an axial bore 192.
- the bore passes through the engine 1 10, through the clutch 150, through the drive shaft or spline 120 and through the
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Reduction Rolling/Reduction Stand/Operation Of Reduction Machine (AREA)
- Rolling Contact Bearings (AREA)
- Rolls And Other Rotary Bodies (AREA)
- Gear Transmission (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102013224644.7A DE102013224644A1 (en) | 2013-11-29 | 2013-11-29 | Device for adjusting a roll in a roll stand |
PCT/EP2014/075431 WO2015078822A1 (en) | 2013-11-29 | 2014-11-24 | Device for adjusting a roll in a roll stand |
Publications (2)
Publication Number | Publication Date |
---|---|
EP3074148A1 true EP3074148A1 (en) | 2016-10-05 |
EP3074148B1 EP3074148B1 (en) | 2017-11-22 |
Family
ID=51982563
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP14802876.4A Active EP3074148B1 (en) | 2013-11-29 | 2014-11-24 | Device for adjusting a roll in a roll stand |
Country Status (8)
Country | Link |
---|---|
US (1) | US10124380B2 (en) |
EP (1) | EP3074148B1 (en) |
JP (1) | JP6242491B2 (en) |
KR (1) | KR101817686B1 (en) |
CN (1) | CN105934287B (en) |
DE (1) | DE102013224644A1 (en) |
RU (1) | RU2631550C1 (en) |
WO (1) | WO2015078822A1 (en) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN105363789B (en) * | 2015-11-16 | 2017-04-12 | 中国兵器工业第二一三研究所 | Mechanism for adjusting distance between roller shafts of cutting rope forming machine |
DE102017214897B4 (en) * | 2017-08-25 | 2019-03-21 | Kocks Technik Gmbh & Co Kg | Adjustable roll stand for rolling rod-shaped rolling stock with an asymmetric toothing between the eccentric bushings and eccentric bushing with asymmetrical toothing |
DE102018214583A1 (en) | 2018-08-29 | 2020-03-05 | Sms Group Gmbh | Device for placing an object |
Family Cites Families (21)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1190759A (en) | 1915-05-17 | 1916-07-11 | Waverly Heating And Supply Company | Sheet-metal joint. |
DE412920C (en) | 1924-02-10 | 1925-05-02 | Fried Krupp Grusonwerk Akt Ges | Adjusting device for the pressure spindles in rolling mills |
GB640302A (en) * | 1946-12-19 | 1950-07-19 | Victor Bohler | An improved device for adjusting the upper working roll in a mill-stand |
SU111577A1 (en) * | 1957-03-04 | 1957-11-30 | А.П. Кононенко | Device for automatic installation of work rolls in parallel planes |
US3104567A (en) | 1960-09-19 | 1963-09-24 | United Eng Foundry Co | Rolling mill screwdown apparatus |
GB1086845A (en) * | 1964-11-06 | 1967-10-11 | Schloemann Ag | An improved roll-gap setting device in a rolling mill |
AT253448B (en) * | 1965-07-14 | 1967-04-10 | Voest Ag | Device for low-error transmission of the rotary motion of an adjusting spindle of rolling stands to the drive shaft of a sensitive resolver |
DE1602030A1 (en) | 1967-05-30 | 1970-05-06 | Krupp Gmbh | Roll stand |
SU386691A1 (en) * | 1971-04-12 | 1973-06-21 | DEVICE FOR MOVING THE CASE WITH THE WORKING ROLLER | |
DE2904574A1 (en) * | 1979-02-07 | 1980-08-21 | Schloemann Siemag Ag | Radial adjusting device for rolls in rolling mill - has lubricant chambers and air vents arranged so device can be used on any type of roll stand |
JPS6320107A (en) | 1986-07-11 | 1988-01-27 | Sumitomo Metal Ind Ltd | Screw down device for rolling mill |
JPH0780515A (en) * | 1993-09-14 | 1995-03-28 | Nippon Steel Corp | Variable barrel width rolling roll |
JPH07218300A (en) | 1993-12-28 | 1995-08-18 | Nippon Steel Corp | Method and device for diagnosing hydraulic control system of rolling machine |
JPH08108204A (en) | 1994-10-05 | 1996-04-30 | Nippon Steel Corp | Hydraulic screw-down device for rolling mill and method thereof |
DE10322664A1 (en) * | 2003-05-16 | 2004-12-02 | Sms Demag Ag | Auxiliary adjustment device for roll stands |
CN201140197Y (en) * | 2007-12-19 | 2008-10-29 | 中冶赛迪工程技术股份有限公司 | Wire rod bar blooming mill apparatus |
CN201692991U (en) | 2010-06-14 | 2011-01-05 | 太原矿山机器集团有限公司 | Dual-drive screwdown device of rolling mill |
CN201855834U (en) | 2010-10-22 | 2011-06-08 | 天津津重重工机器设备制造有限公司 | Screw-down device for working rolls of four high mills |
CN201969730U (en) | 2010-11-24 | 2011-09-14 | 马鞍山钢铁股份有限公司 | Screw-down adjusting device for short stress path rolling mill |
CN202343573U (en) * | 2011-11-29 | 2012-07-25 | 洛阳璋泰非标机械有限公司 | Roller rolling reduction adjusting mechanisms |
JP6320107B2 (en) | 2014-03-26 | 2018-05-09 | 杏林製薬株式会社 | Orally disintegrating tablets |
-
2013
- 2013-11-29 DE DE102013224644.7A patent/DE102013224644A1/en not_active Withdrawn
-
2014
- 2014-11-24 KR KR1020167016784A patent/KR101817686B1/en active IP Right Grant
- 2014-11-24 CN CN201480072919.XA patent/CN105934287B/en active Active
- 2014-11-24 RU RU2016125740A patent/RU2631550C1/en active
- 2014-11-24 JP JP2016535031A patent/JP6242491B2/en active Active
- 2014-11-24 US US15/039,491 patent/US10124380B2/en active Active
- 2014-11-24 EP EP14802876.4A patent/EP3074148B1/en active Active
- 2014-11-24 WO PCT/EP2014/075431 patent/WO2015078822A1/en active Application Filing
Non-Patent Citations (1)
Title |
---|
See references of WO2015078822A1 * |
Also Published As
Publication number | Publication date |
---|---|
EP3074148B1 (en) | 2017-11-22 |
WO2015078822A1 (en) | 2015-06-04 |
DE102013224644A1 (en) | 2015-06-03 |
RU2631550C1 (en) | 2017-09-25 |
JP2016538137A (en) | 2016-12-08 |
CN105934287A (en) | 2016-09-07 |
JP6242491B2 (en) | 2017-12-06 |
KR20160090346A (en) | 2016-07-29 |
KR101817686B1 (en) | 2018-01-15 |
US10124380B2 (en) | 2018-11-13 |
CN105934287B (en) | 2017-11-03 |
US20160375475A1 (en) | 2016-12-29 |
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