WO2008128417A1 - Laminoir calibreur à chaud du type à quatre galets pour tube en acier sans soudure - Google Patents

Laminoir calibreur à chaud du type à quatre galets pour tube en acier sans soudure Download PDF

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Publication number
WO2008128417A1
WO2008128417A1 PCT/CN2008/000617 CN2008000617W WO2008128417A1 WO 2008128417 A1 WO2008128417 A1 WO 2008128417A1 CN 2008000617 W CN2008000617 W CN 2008000617W WO 2008128417 A1 WO2008128417 A1 WO 2008128417A1
Authority
WO
WIPO (PCT)
Prior art keywords
roller
sizing
frame
vertical
horizontal
Prior art date
Application number
PCT/CN2008/000617
Other languages
English (en)
Chinese (zh)
Inventor
Guohong Gao
Zhaokui Lang
Li Ma
Original Assignee
Dalian Sage Heavy Industry Machinery Co. Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Dalian Sage Heavy Industry Machinery Co. Ltd filed Critical Dalian Sage Heavy Industry Machinery Co. Ltd
Priority to DE212008000032U priority Critical patent/DE212008000032U1/de
Publication of WO2008128417A1 publication Critical patent/WO2008128417A1/fr

Links

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
    • B21B31/08—Interchanging rolls, roll mountings, or stand frames, e.g. using C-hooks; Replacing roll chocks on roll shafts
    • B21B31/10—Interchanging rolls, roll mountings, or stand frames, e.g. using C-hooks; Replacing roll chocks on roll shafts by horizontally displacing, i.e. horizontal roll changing
    • B21B31/103—Manipulators or carriages therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B13/00—Metal-rolling stands, i.e. an assembly composed of a stand frame, rolls, and accessories
    • B21B13/08—Metal-rolling stands, i.e. an assembly composed of a stand frame, rolls, and accessories with differently-directed roll axes, e.g. for the so-called "universal" rolling process
    • B21B13/10—Metal-rolling stands, i.e. an assembly composed of a stand frame, rolls, and accessories with differently-directed roll axes, e.g. for the so-called "universal" rolling process all axes being arranged in one plane
    • B21B13/103—Metal-rolling stands, i.e. an assembly composed of a stand frame, rolls, and accessories with differently-directed roll axes, e.g. for the so-called "universal" rolling process all axes being arranged in one plane for rolling bars, rods or wire
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B17/00—Tube-rolling by rollers of which the axes are arranged essentially perpendicular to the axis of the work, e.g. "axial" tube-rolling
    • B21B17/14—Tube-rolling by rollers of which the axes are arranged essentially perpendicular to the axis of the work, e.g. "axial" tube-rolling without mandrel, e.g. stretch-reducing mills
    • 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
    • B21B31/08—Interchanging rolls, roll mountings, or stand frames, e.g. using C-hooks; Replacing roll chocks on roll shafts
    • B21B31/10—Interchanging rolls, roll mountings, or stand frames, e.g. using C-hooks; Replacing roll chocks on roll shafts by horizontally displacing, i.e. horizontal roll changing

Definitions

  • the invention relates to a seamless steel pipe rolling pipe device, in particular to a seamless steel pipe four-roll heat sizing machine. Background technique
  • the sizing machine used for the whole seamless round steel pipe is mainly a three-roller round pipe sizing machine.
  • Its structure consists of a three-roller sizing mainframe, a roll changer on the track, and the main engine transmission mode.
  • the three rollers are distributed at 120°, and the power is transmitted from the shaft end of the shaft to the P gear.
  • the two pairs of bevel gears respectively carry the other two rollers, so that the rollers mounted on the three rollers simultaneously Rotate toward the center to drive the steel pipe through the sizing mainframe.
  • the disadvantages of this sizing machine are:
  • the present invention aims to provide a seamless steel tube four-roller heat sizing machine with reasonable design, compact structure, low cost, safe operation and convenient use. ,.
  • a seamless steel tube four-roller heat sizing machine comprises a roll changing car on a track and a sizing main machine, wherein: the sizing main body is mounted on one side of the track, and is composed of a frame, a horizontal sizing roll set,
  • the side vertical sizing roller group is composed of a square shape, which is formed by connecting a base, a column and a beam.
  • On the base a horizontal sizing roller group and a side vertical sizing roller group are arranged in sequence;
  • Each set of horizontal sizing roller sets and each set of side vertical sizing roller sets are correspondingly arranged, and a plurality of sliding rails are respectively arranged on the changing roller, and each sliding rail
  • each set of horizontal sizing roller sets and each set of side vertical sizing rollers can be pulled out and pushed in the square frame by the hydraulic cylinders of the changing rolls.
  • each horizontal sizing roller set can be locked, each Locking hydraulic cylinder for side set sizing roller set.
  • the horizontal sizing roller group has two or more groups, and each group of horizontal sizing roller groups is composed of a frame, a large fan angle flat roller, a small fan angle vertical roller, a horizontal roller shaft, and a horizontal transmission mechanism.
  • upper and lower flat rollers are installed in the frame, and two are along the outer circumferential surface of the pipe to be processed.
  • Side perpendicular to the upper and lower large fan-angle flat rollers, equipped with small fan-corner vertical rollers on both sides, so that the upper and lower flat rollers and the roller rollers on both sides form a contact surface with the roller of the pipe to be processed.
  • the closed hole is connected; the horizontal transmission mechanism composed of the motor and the reduction box is connected to the horizontal roller shaft on the side of the large fan angle flat roller at the upper and lower positions.
  • the side vertical sizing roller group has two or more sets, and each set of side vertical sizing roller sets is composed of a frame, a large fan angle vertical roller, a small fan angle flat roller, a vertical roller shaft, and a moving mechanism, and Corresponding to the position of the processed pipe, along the two sides of the outer circumferential surface of the pipe to be processed, a large fan-angle vertical roller on both sides is installed in the frame, along the upper and lower sides of the outer circumferential surface of the pipe to be processed Position, perpendicular to the large fan angle roller on both sides, equipped with upper and lower small fan angle flat rollers, so that the large fan angle vertical rollers on both sides and the small fan angle flat rollers in the upper and lower positions and the processed pipe A closed hole is formed between the roller contact faces, and a transmission mechanism composed of a motor reduction gear box is connected to a vertical roller shaft on one side of the two large fan angle vertical rollers.
  • Each set of horizontal sizing roller sets further includes a snubber structure, wherein the snubber structure is a set of shims, and is mounted on the upper and lower planes of the bearing frame of the frame and the horizontal roller shaft by fastening screws. The combined position of the end faces.
  • the spacer group may be a set of gaskets of various specifications formed by spacers of 0.5 mm as a basic unit, and generally includes four specifications of 0.5 mm, 1 mm, 2 mm, and 5 mm. Since the invention is a large-scale hot-rolling rolling mill, it belongs to intermittent rolling. In the production process, a large impact load is generated due to the gap of the frame, which causes damage to the equipment. On the other hand, the working condition is complicated, which is not conducive to the operation on the machine. The gap operation, and the use of the aforementioned gap-clearing structure to eliminate the gap is performed outside the machine, which is simple and easy to perform and reliable in performance.
  • each frame of the horizontal sizing roller group and the side vertical sizing roller group is a closed hole shape, that is, a horizontal sizing roller group and a side sizing roller group
  • the roll contact surface between each roll and the sizing round steel tube forms a closed hole shape
  • the hole shape design of the roll starts from the first frame, and is sequentially a flat ellipsoid - a vertical ellipse - a flat ellipses - Lie ellipses - flat ellipses, such a hole-shaped process, It is very beneficial to reduce the diameter and achieve the purpose of sizing.
  • the rolling fan angle of the driving roller is used in the distribution design of the round steel pipe roll.
  • the angle is larger than the fan angle of the passive roller - the wrap angle, so that the overlap of the roll gap can be avoided, and the contact area between the driving roller and the processed steel pipe can be increased, and the frictional force is increased, resulting in the processing being processed.
  • the increased driving force of the steel pipe is beneficial to the forward running of the steel pipe. Due to the repair of the rolls in each pair of horizontal sizing rolls and side sizing rolls, it is possible to remove the single rolls on a conventional CNC lathe without the need for a dedicated lathe.
  • the object of the present invention is achieved by combining the technical measures taken above.
  • each set of rolls adopts a closed hole type structure, which can avoid the indentation of the roll gap on the surface of the processed steel pipe and improve the sizing quality of the round steel pipe;
  • the hole shape design of the roll starts from the first frame, and is sequentially flat ellipses - vertical ellipses - flat ellipses - vertical ellipses - flat ellipses, such a hole-shaped process, which is very beneficial for reducing the diameter to achieve sizing
  • the design of the gap structure eliminates the gap of the rack, avoids or greatly reduces the impact on the frame during the production process and the resulting equipment damage, and the method of eliminating the gap is to operate outside the machine, and It does not have to be adjusted on the machine, its operation is simple and easy to operate, and its performance is reliable.
  • the invention has the advantages of low cost, safe operation and convenient use as a whole.
  • the present invention has four drawings in total. among them,
  • Figure 1 is a front view showing the structure of a specific embodiment of the present invention.
  • Figure 2 is a plan view of Figure 1;
  • Figure 3 is a cross-sectional view taken along line A-A of Figure 1, showing the distribution of each set of horizontal sizing rolls;
  • Figure 4 is a cross-sectional view of B-B of Figure 1 with the horizontal drive removed, each set of side sizing rolls Distribution map. In the picture,
  • roller changer 2 track 3, small fan angle vertical roll 4, large fan angle flat roll 5, Beam 6, frame 7, lock cylinder 8, column 9, base 10, hydraulic cylinder 11, horizontal roller shaft 11', vertical roller shaft 12, 12' reduction gearbox 13, 13', motor 14, machined pipe 15 , large fan angle vertical roller 16, small fan angle flat roller 17, slide rail 18, eliminating gap structure.
  • Fig. 1 and Fig. 2 it is a seamless steel tube four-roller heat sizing machine installed on the #325 ⁇ 720 seamless steel pipe production line; its structure includes a roll changer 1 on the track 2, a sizing mainframe,
  • the utility model is characterized in that: a sizing main body is arranged on the rear side of the rail 2, the sizing main body is composed of a frame, a horizontal sizing roller group and a side vertical sizing roller group, and the frame is connected by the base 9, the column 8 and the beam 5 Forming a square frame, the base 9 is sequentially provided with three sets of horizontal sizing roller sets and two sets of side sizing roller sets, and each set of horizontal sizing roller sets, as shown in FIG.
  • the upper and lower large fan angle flat rollers 4 are installed in the frame 6, along the two sides of the outer circumferential surface thereof, perpendicular to the upper and lower flat rollers 4, and the small fan angle vertical rollers 3 on both sides are installed.
  • a horizontal transmission mechanism composed of a motor 13 and a reduction box 12 is connected to the horizontal roller shaft 11 on the right side of the upper and lower large fan angle flat rollers 4, and at the same time, in order to reduce the impact load, the clearance is eliminated,
  • the anti-slip spacer group is arranged at the joint position of the upper and lower plane end faces of the bearing frame of the horizontal roller shaft, and the operator adds a suitable anti-backlash gasket group to the upper and lower plane end faces of the bearing housing of the horizontal shaft according to the wear and the gap condition of the roller.
  • each set of side-standing sizing rolls such as 4, consisting of a frame 6, a large fan angle vertical roller 15, a small fan angle flat roller 16, a vertical roller shaft 11', and a moving mechanism corresponding to the position of the tube 14 to be processed, along the outer circumference thereof
  • a large fan angle vertical roller 15 on both sides is installed in the frame 6, and the upper and lower positions along the outer circumferential surface thereof are perpendicular to the large fan angle vertical rollers 15 on both sides, and the upper and lower sides are installed.
  • the upper transmission mechanism consisting of the motor 13' and the reduction gear box 12' is connected to the shaft 1; corresponding to the position of each set of horizontal sizing roller sets and each set of side vertical sizing roller sets, respectively, on the roll changing car 1, respectively a plurality of slide rails 15 corresponding to each of the slide rails 15,
  • the front side of the change roll car 1 is respectively provided with a hydraulic cylinder 10 for changing rolls, and each of the horizontal sizing roll sets and each side set sizing roll set can be pulled out and pushed in a square frame by the hydraulic cylinder 10 for changing rolls.
  • each horizontal sizing roller group can be locked, each Locking hydraulic cylinders 7 of the side set sizing roller sets.

Abstract

L'invention concerne un laminoir calibreur à chaud du type à quatre galets pour tube en acier sans soudure comprenant un cadre principal de calibrage, un véhicule de changement de galet (1) et des cylindres hydrauliques de verrouillage (7). Le cadre principal de calibrage comprend un cadre, des groupes de galets de calibrage de niveau et des groupes de galets de calibrage posés à la verticale côte à côte. Le véhicule de changement de galet (1) est positionné d'un côté des rails (2), et les cylindres hydrauliques destinés à changer le galet (10) sont positionnés de l'autre côté du véhicule de changement de galet (1), chacun des groupes de galets de calibrage de niveau et chacun des groupes de galets de calibrage posés à la verticale côte à côte pouvant être poussés hors du cadre et à l'intérieur de celui-ci par les cylindres hydrauliques pour changer le galet (10). Par rapport à chacun des groupes de galets de calibrage de niveau et chacun des groupes de galets de calibrage posés à la verticale côte à côte, les cylindres hydrauliques de verrouillage (7) sont fixés sur la traverse (5) du cadre pour verrouiller les groupes de galets de calibrage. Ledit laminoir peut améliorer la qualité de calibrage du tube en acier et réduire le processus de changement de galet.
PCT/CN2008/000617 2007-04-23 2008-03-28 Laminoir calibreur à chaud du type à quatre galets pour tube en acier sans soudure WO2008128417A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE212008000032U DE212008000032U1 (de) 2007-04-23 2008-03-28 Maßwarmwalzwerk mit 4 Walzen

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CNA2007100110798A CN101032724A (zh) 2007-04-23 2007-04-23 无缝钢管四辊式热定径机
CN200710011079.8 2007-04-23

Publications (1)

Publication Number Publication Date
WO2008128417A1 true WO2008128417A1 (fr) 2008-10-30

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ID=38729580

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2008/000617 WO2008128417A1 (fr) 2007-04-23 2008-03-28 Laminoir calibreur à chaud du type à quatre galets pour tube en acier sans soudure

Country Status (3)

Country Link
CN (1) CN101032724A (fr)
DE (1) DE212008000032U1 (fr)
WO (1) WO2008128417A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9782810B2 (en) 2014-04-01 2017-10-10 Kocks Technik Gmbh & Co. Kg Roll stand changing device

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101032724A (zh) * 2007-04-23 2007-09-12 大连三高重工设备有限公司 无缝钢管四辊式热定径机
CN101797586A (zh) * 2010-03-30 2010-08-11 天津钢管集团股份有限公司 四辊五机架轧机热定径装置及其热定径的生产方法
CN104117642B (zh) * 2014-07-10 2016-02-03 中国重型机械研究院股份公司 一种镁合金圆坯连铸铸坯拉送机
CN104259209A (zh) * 2014-08-12 2015-01-07 无锡市瑞尔精密机械股份有限公司 一种四辊驱动的热轧无缝方形钢管定径机
CN108481130A (zh) * 2018-03-20 2018-09-04 昆山巨闳机械科技有限公司 钢板打磨机
CN111589868B (zh) * 2020-06-01 2022-03-18 成都益世研电工设备有限公司 一种方便拆装的薄壁金属管缩径设备

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2145021A (en) * 1983-08-15 1985-03-20 Mannesmann Ag Rolling mill
CN1236869C (zh) * 2000-12-13 2006-01-18 三菱重工业株式会社 用于轧机的换辊设备和换辊方法
CN1733379A (zh) * 2005-08-25 2006-02-15 北京科技大学 一种无框架立式短应力线轧机
CN101032724A (zh) * 2007-04-23 2007-09-12 大连三高重工设备有限公司 无缝钢管四辊式热定径机
CN201030378Y (zh) * 2007-04-23 2008-03-05 大连三高重工设备有限公司 无缝钢管四辊式热定径机

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2145021A (en) * 1983-08-15 1985-03-20 Mannesmann Ag Rolling mill
CN1236869C (zh) * 2000-12-13 2006-01-18 三菱重工业株式会社 用于轧机的换辊设备和换辊方法
CN1733379A (zh) * 2005-08-25 2006-02-15 北京科技大学 一种无框架立式短应力线轧机
CN101032724A (zh) * 2007-04-23 2007-09-12 大连三高重工设备有限公司 无缝钢管四辊式热定径机
CN201030378Y (zh) * 2007-04-23 2008-03-05 大连三高重工设备有限公司 无缝钢管四辊式热定径机

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9782810B2 (en) 2014-04-01 2017-10-10 Kocks Technik Gmbh & Co. Kg Roll stand changing device

Also Published As

Publication number Publication date
DE212008000032U1 (de) 2009-12-17
CN101032724A (zh) 2007-09-12

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