WO1996014945A1 - Cylindre de laminage du type a largeur de laminage variable - Google Patents
Cylindre de laminage du type a largeur de laminage variable Download PDFInfo
- Publication number
- WO1996014945A1 WO1996014945A1 PCT/JP1994/001920 JP9401920W WO9614945A1 WO 1996014945 A1 WO1996014945 A1 WO 1996014945A1 JP 9401920 W JP9401920 W JP 9401920W WO 9614945 A1 WO9614945 A1 WO 9614945A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- roll
- sleeve
- arbor
- rolling
- width
- Prior art date
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B27/00—Rolls, roll alloys or roll fabrication; Lubricating, cooling or heating rolls while in use
- B21B27/02—Shape or construction of rolls
- B21B27/028—Variable-width rolls
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B1/00—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations
- B21B1/08—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling structural sections, i.e. work of special cross-section, e.g. angle steel
- B21B1/088—H- or I-sections
- B21B1/0886—H- or I-sections using variable-width rolls
-
- 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
- B21B31/18—Adjusting or positioning rolls by moving rolls axially
Definitions
- the present invention relates to a horizontal roll for rolling section steels of different sizes, and more particularly to a variable roll width rolling roll capable of freely adjusting the roll width in response to a change in the rolling width.
- a roll width adjusting screw is provided for a roll connected to a driving side and having a fixed axial position. It has another D roll that moves in the axial direction. Then, by changing the position of the two rolls in the axial direction with a mouth width adjusting screw, it is possible to set the roll width corresponding to the rolling width.
- a roll radiating type rolling roll requires a mechanism for transmitting rotation from the driving roll to the roll for adjusting the roll width.
- a mechanism is used in which a mouth portion protruding coaxially from a drive-side roll is inserted into the other roll and connected to each other using a spline or a key. Disclosure of the invention
- the position of the connecting spline or key is incorporated into the inner position of the rolling width which is the flange width of the H-section steel, and this position is used as a roll width adjusting port.
- the structure is included on the rolling area side from the position of the bearing.
- the roll receives a rolling reaction force to generate a large bending moment, and the bending moment is the largest at the center of the rolling width and becomes smaller toward the axial end of the roll. It becomes. For this reason, in a structure in which a spline key or the like is incorporated in the rolling region, not only the stress generated from the uneven portion, but also the stress tends to be more concentrated due to the bending load due to the rolling reaction force.
- the present invention is intended to provide a compact roll width variable type roll that achieves the prevention of stress concentration on the roll described above.
- An arbor on one roll drive side and a connecting rod protruding coaxially from the arbor are provided, a sleeve that is externally inserted into the connecting rod and is movable in the axial direction is provided, and these are incorporated into a bearing box by bearings.
- a roll is provided on each of the outer circumferences of the arbor and the sleeve, and a two-split roll is formed that can change the distance between the rolls by changing the relative position of the sleeve and the arbor in the axial direction.
- a drive connection structure for transmitting the rotation of the connection rod to the sleeve wherein the drive connection structure is configured to engage the outer periphery of the connection rod and the inner periphery of the sleeve with irregularities, and the position of the engagement is A roll width which is located closer to the roll end than the center of the bearing supporting the outer periphery of the sleeve in the axial di direction, so that stress concentration during rolling does not occur. Henshiki rolling roll.
- a screw for adjusting the roll width is provided at an end of the connection port, and a slide that does not rotate spatially has a clutch shift cylinder and an internal gear at one end of the screw.
- the variable roll width rolling roll according to (1) further comprising a clutch mechanism including a debox and a sleeve engagement gear that rotates in synchronization with the sleeve.
- Rolls divided into two parts in the width direction are composed of sleeves, extrapolated movably in the axial direction to an arbor as a common roll shaft, and assembled into a bearing box by bearings, and rolls are rolled around the outer circumference of the sleeve.
- the drive connection structure that transmits the outer periphery of the sleeve to the inner periphery of the sleeve is configured to engage with the outer periphery of the sleeve, and the position of the engagement is determined in the axial direction of the bearing that supports the outer periphery of the sleeve.
- a roll width variable type rolling roll characterized in that stress concentration does not occur during rolling.
- a roll width adjusting screw is provided at one end of the averber, and at one end of the screw, there is provided a clutch shift cylinder and a gear portion inside, and a slide box which does not rotate spatially.
- a clutch mechanism consisting of a sleeve engaging gear that rotates in the same manner as the sleeve.
- variable roll width rolling roll according to (1) or (3), wherein the drive connection structure is a spline or key fitting.
- FIG. 1 is a longitudinal sectional view showing an outline of a variable roll width rolling roll according to the present invention.
- FIG. 2 is a view showing an example of a main part when the screw according to the present invention is engaged with a slide engagement gear.
- FIG. 3 is a longitudinal sectional view showing an example of a spline structure between a connection opening pad and a sleeve.
- the present invention relates to a horizontal roll used for rolling section steel, wherein the width of the roll is variable so that the roll width can be adjusted without changing rolls when rolling products of different sizes, and is divided into two parts.
- the purpose is to prevent the occurrence of stress concentration at the roll connection part peculiar to rolls and improve the strength. That is, the drive connection structure of the present invention improves the strength against rolling tonnole, bending and torsion by rolling the armor portion by improving the notch effect of the connection portion as compared with the related art, and makes the split opening compact. Is possible.
- the first invention of the present invention in order to eliminate the concentration of stress in the drive connection structure from the drive side roll to the other roll in the variable width roll-type two-part rolling roll, it is coaxially protruded from the drive side arbor.
- the sleeve is attached to the connecting port, and a roll is provided for each of the arbor and the sleeve.
- the connecting rod and the sleeve are connected to each other by a screw gear mechanism, and the sleeve is connected.
- the rolling roll is configured to be movable in the axial direction so that the roll width can be changed.
- the position S of the concave and convex engagement by a spline or a key for transmitting the rotation of the abber to the sleeve is arranged outside the center of the sleeve bearing in the axial di direction S. This prevents the engagement from being affected by bending due to the rolling reaction force, thereby preventing the concentration of stress.
- each sleeve is extrapolated to a common aver, and each sleeve is provided with a roll and supported in a housing by a bearing, and the aver and each sleeve are connected to a screw gear mechanism.
- the rolling rolls are connected so that the sleeve can be moved in the axial direction and the roll width can be changed.
- the drive connection structure of the rolling roll has the same configuration as that of the first invention. In this structure, the rolling reaction force during rolling is transmitted from the roll to the arbor and sleeve, and the maximum bending is applied to the sleeve where the roll is located and the connecting rod on the aver side.
- FIG. 1 is an embodiment of the present invention, and is a longitudinal sectional view of a variable roll width roll as viewed in a bath direction of a rolled material.
- 11 is a rolled material of H-section steel, which is rolled by an upper horizontal roll composed of horizontal rolls 3a and 3b, a lower horizontal roll composed of horizontal rolls 5a and 5b, and vertical rolls 1 and 13 Is done.
- an upper horizontal roll composed of horizontal rolls 3a and 3b
- a lower horizontal roll composed of horizontal rolls 5a and 5b
- vertical rolls 1 and 13 Is done.
- the present invention will be described with reference to the upper horizontal roll 3, but the same applies to the lower horizontal roll 5.
- an arbor 2 connected to a drive motor and a reduction gear (not shown) is supported by a bearing 1c of a bearing box 1a on the drive side.
- the chamber 2 has a connecting rod 2a protruding coaxially, and a roll 3a is integrally provided on the outer periphery near the bearing 1c.
- a sleeve 4 rotatably supported by a radial bearing 1d provided on a driven-side bearing box 1b is extended, i.e., the sleeve 4 extends in the roll axis direction. It is fitted movably on the outside, and is configured so as not to rotate relatively by the drive connection structure (spline 8 in this figure).
- a roll 3b is provided on the outer periphery of one end of the sleeve 4 so as to form a pair with the outlet 3a of the fiber 2 side.
- the sleeve 4 is connected to the bearing housing 1b by the bearing 6a and the screw ring 6b, and the sleeve and the sleeve are connected by the pass line centering motor 6c that shifts the screw ring 6b. It can move integrally to the left and right in the axial direction.
- the bearing box 1a is supported in the roll axis direction by a pressing device 10 attached to a housing (not shown).
- a screw 9 for adjusting the roll width is provided at a position where it contacts the end of the connecting rod 2a, and this is screwed to the female screw 4a of the sleeve 4 ⁇ Screw 9 in Fig. 1
- a clutch shift cylinder 7a and a clutch mechanism 7 composed of a slide box 7b having a gear portion on the inner side and not rotating spatially and a sleeve engaging gear 7c rotating in synchronization with the sleeve 4 are provided.
- the clutch mechanism 7 has a function of selectively rotating the screw 9 synchronously with respect to the sleeve 4 and the arbor 2 that rotate integrally, or fixing the rotation spatially.
- the adjustment method when operating when the upper horizontal roll width is increased by W is performed as follows. After rolling at the roll width B, if the roll width is changed to B + W, the roll 3a is constrained to move in the roll axial direction by the housing through the arbor 2 and the bearing housing 1a. a does not move, horizontal roll 3b has moved to the left of the figure by W. Therefore, in a rolling line arranged so that rolling at a fixed pass line center is performed, the roll center is shifted to the left by 1 Z 2 W in such a setting method. For this reason, the entire horizontal roll is moved by the pass line centering motor 6c to move the arbor and the sleeve integrally in the axial direction so that the pass lines are aligned.
- the spline 8 provided at the base end of the connection port 2a for transmitting the rotation from the arbor 2 to the sleeve 4 is the same as that generally used as a mechanical element, and is enlarged in FIG.
- grooves 8a and 8b are formed on the outer periphery of the connecting hole 2a and the inner periphery of the sleeve 4 so as to be aligned with each other.
- the connecting portion formed by the spline 8 is provided outside the axial center of the bearing 1d as shown in FIG.
- the rolling reaction force during rolling is applied from rolls 3a and 3 to aver 2, sleeve 4 and connecting port 2a.
- the sleeves are extrapolated around the outer periphery of the common aber of the split rolls, and the rolls are provided on the outer periphery of each of the sleeves so as to be symmetrical.
- the drive connection structure and the connection position thereof are provided outside the center of the axis of the bearing similarly to the first invention of the present invention, thereby having the same operation and effects as those of the first invention.
- Table 1 shows a comparison of the first invention of the present invention with the conventional method when applied to an actual rolling mill. From this table, it can be seen that, in the present invention, if the roll reaction force is the same roll diameter and roll material, it is possible to withstand a roll reaction force of about 1.5 to 2.3 times as compared with the conventional case. It can be seen that the advantage of the roll design is significantly improved when the width adjustment amount can be adjusted by about 1.7 times.
- the torque transmission is performed between the drive-side arbor and the sleeve to which the rotational force is transmitted from the drive-side arbor by a concave and convex engagement of a spline or a key provided at a position apart from a portion to be bent by the rolling reaction force. Therefore, the shape of the arbor and sleeve at the part where the bending is greatly applied can be simplified, and the concentration of stress can be prevented. Therefore, appropriate strength can be obtained without increasing the outer diameter of the over sleeve, and the rolling load can be increased.
- the spline and key are positioned outside the axial center of the bearing that supports the sleeve on the housing side, the bending will be received by the bearing, and the stress caused by providing the spline and key will be reduced. The degree of concentration is also reduced.
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- Physics & Mathematics (AREA)
- Geometry (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Reduction Rolling/Reduction Stand/Operation Of Reduction Machine (AREA)
Description
Claims
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US08/669,511 US5806361A (en) | 1994-11-11 | 1994-11-11 | Rolling-mill roll of barrel-width adjustable type |
KR1019960703706A KR100235210B1 (ko) | 1994-11-11 | 1994-11-11 | 롤폭 가변식 압연롤 |
DE69430821T DE69430821T2 (de) | 1994-11-11 | 1994-11-11 | Breitenveränderbare walze |
EP95900298A EP0739660B1 (en) | 1994-11-11 | 1994-11-11 | Variable roll width type rolling roll |
PCT/JP1994/001920 WO1996014945A1 (fr) | 1994-11-11 | 1994-11-11 | Cylindre de laminage du type a largeur de laminage variable |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/JP1994/001920 WO1996014945A1 (fr) | 1994-11-11 | 1994-11-11 | Cylindre de laminage du type a largeur de laminage variable |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1996014945A1 true WO1996014945A1 (fr) | 1996-05-23 |
Family
ID=14098795
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP1994/001920 WO1996014945A1 (fr) | 1994-11-11 | 1994-11-11 | Cylindre de laminage du type a largeur de laminage variable |
Country Status (5)
Country | Link |
---|---|
US (1) | US5806361A (ja) |
EP (1) | EP0739660B1 (ja) |
KR (1) | KR100235210B1 (ja) |
DE (1) | DE69430821T2 (ja) |
WO (1) | WO1996014945A1 (ja) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19819063A1 (de) * | 1998-04-29 | 1999-11-04 | Schloemann Siemag Ag | Richtmaschine für gewalzte Träger |
JP3295045B2 (ja) * | 1998-12-10 | 2002-06-24 | 川崎製鉄株式会社 | ユニバーサル圧延機 |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6072603A (ja) * | 1983-09-27 | 1985-04-24 | Kawasaki Heavy Ind Ltd | 圧延ロ−ル幅調整装置 |
JPS62176604A (ja) * | 1986-01-30 | 1987-08-03 | Nippon Steel Corp | ロ−ル幅調整装置 |
JPH03210907A (ja) * | 1990-01-12 | 1991-09-13 | Nippon Steel Corp | ロール幅調整装置 |
JPH044909A (ja) * | 1990-04-24 | 1992-01-09 | Kawasaki Steel Corp | H形鋼の圧延用エッジングロール |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6117310A (ja) * | 1984-07-04 | 1986-01-25 | Kawasaki Steel Corp | 形鋼の圧延機 |
JPH0245923B2 (ja) * | 1985-12-27 | 1990-10-12 | Nippon Steel Corp | Rooruhabachoseisochi |
US5533374A (en) * | 1993-04-23 | 1996-07-09 | Kawasaki Steel Corporation | Edging roll for rolling shape |
-
1994
- 1994-11-11 EP EP95900298A patent/EP0739660B1/en not_active Expired - Lifetime
- 1994-11-11 WO PCT/JP1994/001920 patent/WO1996014945A1/ja active IP Right Grant
- 1994-11-11 US US08/669,511 patent/US5806361A/en not_active Expired - Lifetime
- 1994-11-11 DE DE69430821T patent/DE69430821T2/de not_active Expired - Fee Related
- 1994-11-11 KR KR1019960703706A patent/KR100235210B1/ko not_active IP Right Cessation
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6072603A (ja) * | 1983-09-27 | 1985-04-24 | Kawasaki Heavy Ind Ltd | 圧延ロ−ル幅調整装置 |
JPS62176604A (ja) * | 1986-01-30 | 1987-08-03 | Nippon Steel Corp | ロ−ル幅調整装置 |
JPH03210907A (ja) * | 1990-01-12 | 1991-09-13 | Nippon Steel Corp | ロール幅調整装置 |
JPH044909A (ja) * | 1990-04-24 | 1992-01-09 | Kawasaki Steel Corp | H形鋼の圧延用エッジングロール |
Non-Patent Citations (1)
Title |
---|
See also references of EP0739660A4 * |
Also Published As
Publication number | Publication date |
---|---|
DE69430821D1 (de) | 2002-07-18 |
EP0739660A1 (en) | 1996-10-30 |
US5806361A (en) | 1998-09-15 |
KR100235210B1 (ko) | 1999-12-15 |
EP0739660B1 (en) | 2002-06-12 |
EP0739660A4 (en) | 1999-02-03 |
DE69430821T2 (de) | 2002-11-28 |
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