WO2022259408A1 - Dispositif de cylindre d'appui pour laminoir à cylindres multiples - Google Patents

Dispositif de cylindre d'appui pour laminoir à cylindres multiples Download PDF

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Publication number
WO2022259408A1
WO2022259408A1 PCT/JP2021/021885 JP2021021885W WO2022259408A1 WO 2022259408 A1 WO2022259408 A1 WO 2022259408A1 JP 2021021885 W JP2021021885 W JP 2021021885W WO 2022259408 A1 WO2022259408 A1 WO 2022259408A1
Authority
WO
WIPO (PCT)
Prior art keywords
backup roll
detector
shaft
inner ring
groove
Prior art date
Application number
PCT/JP2021/021885
Other languages
English (en)
Japanese (ja)
Inventor
康平 喜多
Original Assignee
株式会社ジェイテクト
日本センヂミア株式会社
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 株式会社ジェイテクト, 日本センヂミア株式会社 filed Critical 株式会社ジェイテクト
Priority to PCT/JP2021/021885 priority Critical patent/WO2022259408A1/fr
Priority to KR1020237042616A priority patent/KR20240007231A/ko
Priority to JP2023526715A priority patent/JPWO2022259408A1/ja
Priority to CN202180098881.3A priority patent/CN117545565A/zh
Publication of WO2022259408A1 publication Critical patent/WO2022259408A1/fr

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B29/00—Counter-pressure devices acting on rolls to inhibit deflection of same under load, e.g. backing rolls ; Roll bending devices, e.g. hydraulic actuators acting on roll shaft ends
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B38/00—Methods or devices for measuring, detecting or monitoring specially adapted for metal-rolling mills, e.g. position detection, inspection of the product
    • B21B38/08—Methods or devices for measuring, detecting or monitoring specially adapted for metal-rolling mills, e.g. position detection, inspection of the product for measuring roll-force

Definitions

  • the present disclosure relates to a backup roll device used in a multi-stage rolling mill.
  • Patent Document 1 discloses a multistage rolling mill called a Sendzimir mill.
  • this multi-stage rolling mill includes a pair of upper and lower rolling rolls 11, four first intermediate rolls 12 supporting the rolling rolls 11, and six rolls supporting the first intermediate rolls 12. and eight backup rolls 14 that support the second intermediate roll 13 .
  • the backup roll 14 is supported by a shaft 16 passing through the center thereof, and the shaft 16 is supported by a saddle 18 in a non-rotating state.
  • a saddle 18 is supported in the rolling mill housing 17 .
  • An object of the present disclosure is to provide a backup roll device for a multi-high rolling mill that can detect the load applied to the backup rolls.
  • the backup roll device of the multi-stage rolling mill of the present disclosure is a shaft; a support that supports the shaft; a backup roll supported by the shaft; and a detector that detects the load applied to the backup roll,
  • the backup roll is an inner ring fixed to the shaft; an outer ring arranged radially outward of the inner ring; a plurality of rolling elements arranged radially between the inner ring and the outer ring, the detector is attached to the inner ring;
  • a wiring passage for the cable of the detector is formed axially in the shaft.
  • the load applied to the backup rolls can be detected by the detector. Therefore, an abnormality caused by the load can be prevented or detected at an early stage, and the occurrence of trouble due to the abnormality can be suppressed.
  • FIG. 1 is a schematic side view of a multi-stage rolling mill according to an embodiment of the present disclosure
  • FIG. It is a schematic front view showing a backup roll.
  • FIG. 3 is a detailed cross-sectional view of part A in FIG. 2 ;
  • FIG. 3 is a cross-sectional view taken along line BB of FIG. 2;
  • Fig. 2 is a perspective view of a shaft;
  • 3 is a cross-sectional view taken along line CC of FIG. 2;
  • FIG. It is a perspective view of an inner ring.
  • FIG. 4 is a perspective view of a key;
  • the backup roll device of the multi-high rolling mill in the embodiment of the present disclosure is a shaft; a support that supports the shaft; a backup roll supported by the shaft; and a detector that detects the load applied to the backup roll,
  • the backup roll is an inner ring fixed to the shaft; an outer ring arranged radially outward of the inner ring; a plurality of rolling elements arranged radially between the inner ring and the outer ring, the detector is attached to the inner ring;
  • a wiring passage for the cable of the detector is formed axially in the shaft.
  • the cable of the detector means a power distribution or communication wire connected to a power supply for supplying power to the detector or a recording device for recording the detected value of the detector.
  • the detector can detect the load applied from the rolling rolls or the intermediate rolls of the multi-high rolling mill to the backup rolls. Since the wiring passage is formed in the shaft along the axial direction, the cable of the detector can be easily routed to a position away from the detector in the axial direction.
  • the wiring passage includes a first groove formed on the outer peripheral surface of the shaft.
  • the wiring passage includes a second groove formed in the inner ring and extending circumferentially between the detector and the first groove.
  • the detector is placed at a position in the circumferential direction of the backup roll that receives the load (in other words, at a position where the load is easily detected).
  • the first groove of the shaft is arranged at a position distant in the circumferential direction from the position where the load is received. Since the first groove can be a factor that reduces the strength of the shaft, by arranging the first groove at a position distant in the circumferential direction from the location where the load is received, the burden imposed on the shaft by the load can be reduced. .
  • the circumferential phase difference between the first groove and the detector is 150° or more and 210° or less.
  • the first groove can be arranged at a position as far away as possible in the circumferential direction of the backup roll that receives the load from the rolling roll or the intermediate roll.
  • the backup roll device of the present embodiment further includes a key for preventing rotation of the shaft with respect to the support,
  • the first groove also serves as a key groove into which the key is fitted. According to this configuration, it is possible to reduce the number of grooves formed in the shaft, thereby suppressing a decrease in the strength of the shaft.
  • the key is formed with a groove or hole for passing the cable.
  • the detector is a strain gauge, and the inner peripheral surface of the inner ring is formed with a recess for accommodating the detector.
  • the first backup roll provided with the detector and the first backup roll are arranged at different positions in the axial direction, and the detector is a second backup roll provided;
  • the cable of the detector provided on the first backup roll and the cable of the detector provided on the second backup roll pass through the wiring passage formed in the shaft and are pulled out from a common pulled-out position.
  • FIG. 1 is a schematic side view of a multi-stage rolling mill according to an embodiment of the present disclosure
  • FIG. The multi-high rolling mill 10 of this embodiment is a 20-high cluster rolling mill having a 1-2-3-4 roll arrangement.
  • a material W to be rolled such as a thin plate material is passed between a pair of upper and lower rolling rolls 11 in the horizontal direction of FIG. 1 and rolled.
  • a pair of upper and lower rolls 11 are supported by four first intermediate rolls 12 (two upper and lower rolls).
  • the four first intermediate rolls 12 are supported by six second intermediate rolls 13 (three on each side).
  • the second intermediate roll 13 is supported by eight backup rolls 14 (four on each side).
  • One backup roll 14 means the backup roll 14 attached to one shaft 16, and the number of backup rolls 14 attached to the shaft 16 is not particularly limited.
  • FIG. 2 is a schematic front view showing a backup roll.
  • Backup roll 14 is concentrically mounted on shaft 16 .
  • multiple backup rolls 14 are attached to the shaft 16 .
  • the shaft 16 is supported by a saddle (support) 18 supported by a housing 17 (see FIG. 1) of the multi-high rolling mill 10 .
  • the shaft 16 is cylindrical (hollow), but may be solid.
  • six backup rolls 14 are arranged at predetermined intervals in the axial direction, and saddles 18 are arranged between each of the six backup rolls 14 and axially outside the backup rolls 14 at both ends in the axial direction.
  • the axial direction means the direction parallel to the central axis C of the shaft 16 and the backup roll 14
  • the circumferential direction means the direction around the central axis C of the shaft 16 and the backup roll 14.
  • FIG. 3 is a detailed cross-sectional view of part A in FIG.
  • Each backup roll 14 is substantially composed of a rolling bearing.
  • each backup roll 14 includes an inner ring 20 fixed to the outer peripheral surface of the shaft 16, an outer ring 21 arranged radially outside the inner ring 20, and a plurality of rollers arranged between the inner ring 20 and the outer ring 21. It has cylindrical rollers (rolling elements) 22 and a retainer 23 that retains a plurality of cylindrical rollers 22 .
  • the inner ring 20 is formed in a cylindrical shape and has a raceway on which cylindrical rollers 22 roll on the outer peripheral surface.
  • the inner ring 20 is fitted on the outer peripheral surface of the shaft 16 by a loose fit.
  • the inner ring 20 may be fitted to the outer peripheral surface of the shaft 16 by interference fit or intermediate fit.
  • the inner ring 20 is provided with a detector 46 that detects the load applied to the backup roll 14 .
  • Two inner rings 20 are arranged side by side in the axial direction.
  • the cylindrical rollers 22 are arranged in two rows corresponding to the two inner rings 20 .
  • the outer ring 21 is formed in a cylindrical shape and has a raceway on which the cylindrical rollers 22 roll on its inner peripheral surface.
  • the outer ring 21 is arranged concentrically with the inner ring 20 .
  • the outer ring 21 is configured to be circumferentially rotatable via cylindrical rollers 22 .
  • the outer peripheral surface of the outer ring 21 constitutes the outer peripheral surface of the backup roll 14 .
  • the saddle 18 includes a shoe member 25 , an outer ring (saddle ring) 26 , an intermediate ring (eccentric ring) 27 and an inner ring 28 .
  • the shoe member 25 is made of a plate material having an arcuate cross section and is supported by the housing 17 .
  • An outer ring 26 is secured to the shoe member 25 .
  • the shoe member 25 is made of a plate material having an arcuate cross section and is supported by the housing 17 .
  • An intermediate ring 27 is rotatably fitted to the inner circumference of the outer ring 26 via a plurality of needle rollers 30 (see FIG. 3).
  • an inner ring 28 is rotatably fitted to the inner circumference of the intermediate ring 27 via needle rollers 31 (see FIG. 3).
  • a shaft 16 is fitted to the inner peripheral surface of the inner ring 28 .
  • the saddle 18 has a crown control mechanism for controlling the plate shape of the material W to be rolled.
  • the inner ring 28 is formed so that the inner circumference and the outer circumference are concentric, while the intermediate ring 27 is formed so that the inner circumference and the outer circumference are eccentric to each other. ing. Therefore, when only the intermediate ring 27 is rotated within the outer ring 26, the inner ring 28 and the central axis C of the shaft 16 move, and the backup roll 14 also moves accordingly. By moving the backup roll 14, it is possible to control the crown of the material to be rolled.
  • FIG. 5 is a perspective view of the shaft.
  • a key groove 32 is formed on the outer peripheral surface of the shaft 16.
  • a keyway 33 is formed in the inner ring 28 of the saddle 18 .
  • a key 34 is fitted in both key grooves 32 and 33 . Key 34 prevents relative rotation between inner ring 28 and shaft 16 .
  • This key groove (first groove) 32 constitutes a "wiring passage" for passing the cable 47 of the detector 46, as will be described later.
  • the keyway 32 of the shaft 16 extends continuously in the axial direction of the shaft 16 so as to correspond to the plurality of saddles 18 spaced apart in the axial direction.
  • the key groove 32 is formed along the entire axial direction of the shaft 16 .
  • a stopper ring 36 is fitted to the outer peripheral surface of one axial end (right end) of the shaft 16 to prevent the shaft 16 from rotating with respect to the outer ring 26 of the saddle 18 .
  • a key groove 37 is formed on the inner peripheral surface of the stopper ring 36
  • a key 34 is fitted between the key groove 37 and the key groove 32 of the shaft 16 .
  • a portion of the stopper ring 36 in the circumferential direction bulges in the radial direction, and the bulged portion is provided with a pin 41 projecting sideways. This pin 41 is inserted into a recess 42 formed in the outer ring 26 of the saddle 18 at the axial end (right end), as shown in FIG. 36 is blocked from rotating. With the structure described above, the shaft 16 is prevented from rotating with respect to the outer ring 26 of the saddle 18 via the stopper ring 36 .
  • an end cover 19 is provided at the other end (left end) of the shaft 16 in the axial direction.
  • the end cover 19 restricts axial relative movement between the shaft 16 and the saddle 18 and the backup roll 14 .
  • FIG. 6 is a cross-sectional view taken along line CC of FIG. 2.
  • FIG. 7 is a perspective view of an inner ring.
  • FIG. 8 is a perspective view of the key 34.
  • FIG. As shown in FIGS. 3, 6, and 7, a concave portion 45 is formed in the inner peripheral surface of the inner ring 20. As shown in FIGS. The recessed portion 45 is formed across the width of the inner ring 20 in the axial direction.
  • a detector 46 for detecting the load applied to the backup roll 14 is accommodated in the recess 45 .
  • the detector 46 of this embodiment is a strain gauge. Further, in this embodiment, two detectors 46 are provided for one backup roll 14 (two inner rings 20).
  • the recess 45 and the detector 46 are arranged at positions that are out of phase with each other by about 180° in the circumferential direction with respect to the key groove 32 formed on the shaft 16 .
  • the backup roll 14 contacts the outer peripheral surface of the second intermediate roll 13 at a position that is substantially 180° out of phase with respect to the keyway 32, in other words, at the same or overlapping phase as the concave portion 45 and the detector 46. ing.
  • the keyway 32 is positioned between the shoe member 25 of the saddle 18 supported by the housing 17 and the central axis C of the shaft 16 .
  • a load is applied to the backup roll 14 from the second intermediate roll 13, and the inner ring 20 is distorted by the load. There is a correlation between the magnitude of this strain and the load applied to the backup roll 14 . Therefore, the detector 46 can detect the strain generated in the inner ring 20 as a value corresponding to the load applied to the backup roll 14 .
  • Circumferentially extending circumferential grooves (second grooves) 48 are formed in one axial end face of the inner ring 20 , specifically, one axial end face of the inner ring 20 forming the axially outer end face of the backup roll 14 . is formed.
  • the circumferential groove 48 is open not only at one axial end face of the inner ring 20 but also at the inner peripheral face of the inner ring 20 .
  • the circumferential groove 48 is formed over a circumferential range of approximately 180° in the inner ring 20 .
  • One end of the circumferential groove 48 communicates with the axial end of the recess 45 that accommodates the detector 46 .
  • the other end of the circumferential groove 48 communicates with the key groove 32 formed on the shaft 16 .
  • a cable 47 is connected to the detector 46 .
  • This cable 47 as shown in FIG. 2, is connected to an external device 50 such as a recording device and a power source arranged outside the backup roll device.
  • the recording device receives a detection value signal from the detector 46 and records the detection value.
  • a power supply powers the detector 46 .
  • Cable 47 passes from detector 46 in recess 45 through circumferential groove 48 to keyway 32 of shaft 16 . 2, the cable 47 is drawn out from one end of the shaft 16 through the keyway 32. As shown in FIG. In FIG. 2, the detector 46 and the cable 47 are drawn with solid lines to clearly show the arrangement of them. placed in position.
  • the key 34 is formed with a groove 34a through which the cable 47 is passed.
  • the key 34 is formed in a substantially rectangular parallelepiped shape, the lower side of FIG. 8 is fitted into the key groove 32 of the shaft 16, and the upper side of FIG. A groove 34a extending along the longitudinal direction of the key 34 and avoiding interference with the cable 47 is formed on the lower surface of the key 34 in FIG.
  • the key 34 may be formed with a hole penetrating in the longitudinal direction instead of the groove 34a.
  • projections 34b are formed on both end surfaces of the key 34 in the longitudinal direction.
  • a concave portion 20a is formed in one end face of the inner ring 20 in the axial direction.
  • the protrusion 34b of the key 34 fits into the recess 20a of the inner ring 20 arranged adjacent to the key 34.
  • the inner ring 20 is restricted from rotating about the central axis C by the key 34 . Since the inner ring 20 is loosely fitted to the outer peripheral surface of the shaft 16, it may rotate relative to the shaft 16 due to a creep phenomenon. , the cable 47 is caught between the shaft 16 and the inner ring 20 at the boundary of .
  • the structure is not limited to fitting the projection 34b of the key 34 into the recess 20a of the inner ring 20.
  • both the key 34 and the inner ring 20 are fitted. It is also possible to provide a pin or increase the interference between the inner ring 20 and the shaft 16 .
  • the cable 47 of the detector 46 attached to each backup roll 14 is routed toward one end side of the shaft 16 in the axial direction through the circumferential groove 48 of the inner ring 20 and the key groove 32 of the shaft 16, As shown in FIG. 2, it is drawn out from a predetermined drawing position D on the shaft 16 and connected to an external device 50 such as a storage device and a power supply. Specifically, the cable 47 is pulled out from the left end of the shaft 16 in FIG. Since an end cover 19 is provided at the left end of the shaft 16, the end cover 19 is formed with a hole for drawing out the cable. Further, a seal is provided between the inner peripheral surface of the hole and the cable 47 passing through the hole to prevent foreign matter and water from entering.
  • the load applied from the second intermediate roll 13 to the backup roll 14 is detected by the detector 46 when the multi-high rolling mill 10 is rolling the material W to be rolled. Therefore, it is possible to prevent abnormalities (for example, breakage of rolling bearings (inner ring 20, outer ring 21, cylindrical rollers 22), etc.) caused by the load, and to detect such abnormalities early. The occurrence of troubles in the machine 10 can be suppressed.
  • abnormalities for example, breakage of rolling bearings (inner ring 20, outer ring 21, cylindrical rollers 22), etc.
  • the cable 47 of the detector 46 passes through a wiring passage formed in the inner ring 20 and the shaft 16, specifically, a circumferential groove (second groove) 48 formed in the inner ring 20 and a key groove ( (first groove) 32 and connected to an external device 50 .
  • a wiring passage formed in the inner ring 20 and the shaft 16 specifically, a circumferential groove (second groove) 48 formed in the inner ring 20 and a key groove ( (first groove) 32 and connected to an external device 50 .
  • the cables 47 of the detectors 46 provided for each of the plurality of backup rolls 14 are pulled out directly and individually from the positions of the respective backup rolls 14 and the positions of the saddles 18 adjacent thereto, they are pulled out. If the cables 47 are connected to the external device 50 respectively, the wiring work of the cables 47 becomes extremely complicated, and troubles such as disconnection of the cables 47 tend to occur before reaching the external device 50 .
  • the cable 47 of the detector 46 provided on each backup roll 14 is passed through the key groove 32 formed on the shaft 16 so that the cable 47 of each detector 46 is placed at one point on the shaft 16 (withdrawal It can be routed toward position D) and pulled out collectively from that location. Therefore, the wiring work of the cable 47 can be easily performed, and the occurrence of breakage of the cable 47 can be suppressed.
  • the key groove 32 is used as a wiring passage for the cable 47. Therefore, it is not necessary to form the first groove as a wiring passage in the shaft 16 separately from the key groove 32, so that the number of processing steps for the shaft 16 can be reduced, and reduction in the strength of the shaft 16 can be suppressed.
  • the detector 46 is arranged in the same phase as the contact point P between the backup roll 14 and the second intermediate roll 13 in the circumferential direction. Therefore, the load applied to the backup roll 14 can be efficiently detected by the detector 46 .
  • the key groove 32 which is a wiring passage for the cable 47, is arranged at a position that is out of phase with the detector 46 and the contact point P by about 180°. Therefore, the key groove 32 can be arranged at a position distant from the contact point P to which the load is applied. Since the key groove 32 can reduce the strength of the shaft 16, the load applied to the shaft 16 by the load is minimized by arranging the key groove 32 at a position away from the contact point P where the load is applied. can be made smaller.
  • the detector 46 may be arranged not in the same phase as the contact point P in the circumferential direction, but in a phase overlapping the contact point P. Further, the detector 46 may be arranged at a position shifted in the circumferential direction with respect to the contact point P within the range indicated by the angle ⁇ in FIG. Further, the detector 46 may be positioned within an angle ⁇ from being 180° out of phase with respect to the keyway 32 .
  • the angle ⁇ can be set to 30°, for example. In this case, the phase difference between the detector 46 and the keyway 32 is 150° or more and 210° or less.
  • the concave portion 45 formed in the inner ring 20 has a first function of securing an installation space for the detector 46 and a second function of facilitating distortion of the inner ring 20 .
  • the second function makes it easier for the inner ring 20 to be distorted by the load from the second intermediate roll 13, so that the distortion detection sensitivity of the detector 46 can be enhanced.
  • detectors 46 are provided for one backup roll 14 in the above embodiment, one or three or more detectors 46 may be provided. Further, in the above embodiment, all the backup rolls 14 are provided with the detector 46 , but at least one backup roll 14 may be provided with the detector 46 . If at least two backup rolls (first backup roll, second backup roll) 14 are provided with detectors 46, the cable 47 of each detector 46 can be withdrawn from a common withdrawal position D on the shaft 16. , the wiring work of the cable 47 can be easily performed.
  • the detector 46 is not limited to a strain gauge, and may be of another type capable of detecting the load applied to the backup roll 14 (including a value correlated with the load).
  • the first groove that forms the wiring passage for the cable 47 and extends in the axial direction may be formed separately from the key groove 32 on the shaft 16 . Also, the first groove may be formed in the same or overlapping phase as the detector 46 in the circumferential direction. In this case, the circumferential groove (second groove) 48 of the inner ring 20 can be omitted.
  • the wiring passage may be formed inside the shaft 16 instead of the outer peripheral surface.
  • the 20-high multi-high rolling mill 10 was exemplified, but the number of stages is not limited, and the present disclosure can be applied to any multi-high rolling mill 10 having backup rolls 14 .
  • the backup roll 14 may directly back up the rolling roll 11 .
  • Multistage rolling mill 14 Backup roll 16: Shaft 18: Saddle (support) 20: Inner ring 21: Outer ring 22: Cylindrical roller (rolling element) 32: key groove (first groove) 34: Key 34a: Groove 45: Recess 46: Detector 47: Cable 48: Circumferential groove (second groove) 50: external device

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Reduction Rolling/Reduction Stand/Operation Of Reduction Machine (AREA)

Abstract

L'invention concerne un dispositif de cylindre d'appui pour un laminoir à cylindres multiples, le dispositif de cylindre d'appui comprenant un arbre, un corps de support qui supporte l'arbre, un cylindre d'appui supporté par l'arbre, et un détecteur qui détecte la charge appliquée au cylindre d'appui. Le cylindre d'appui comprend une bague intérieure qui est fixée sur l'arbre, une bague extérieure qui est disposée sur l'extérieur de la bague intérieure dans le sens radial, et une pluralité de corps de roulement qui sont disposés entre la bague intérieure et la bague extérieure dans le sens radial. Le détecteur est fixé sur la bague intérieure, et un passage de câblage à travers lequel passe un câble pour le détecteur est formé dans l'arbre suivant la direction axiale de l'arbre.
PCT/JP2021/021885 2021-06-09 2021-06-09 Dispositif de cylindre d'appui pour laminoir à cylindres multiples WO2022259408A1 (fr)

Priority Applications (4)

Application Number Priority Date Filing Date Title
PCT/JP2021/021885 WO2022259408A1 (fr) 2021-06-09 2021-06-09 Dispositif de cylindre d'appui pour laminoir à cylindres multiples
KR1020237042616A KR20240007231A (ko) 2021-06-09 2021-06-09 다단 압연기의 백업 롤 장치
JP2023526715A JPWO2022259408A1 (fr) 2021-06-09 2021-06-09
CN202180098881.3A CN117545565A (zh) 2021-06-09 2021-06-09 多级轧机的支承辊装置

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2021/021885 WO2022259408A1 (fr) 2021-06-09 2021-06-09 Dispositif de cylindre d'appui pour laminoir à cylindres multiples

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WO2022259408A1 true WO2022259408A1 (fr) 2022-12-15

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PCT/JP2021/021885 WO2022259408A1 (fr) 2021-06-09 2021-06-09 Dispositif de cylindre d'appui pour laminoir à cylindres multiples

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JP (1) JPWO2022259408A1 (fr)
KR (1) KR20240007231A (fr)
CN (1) CN117545565A (fr)
WO (1) WO2022259408A1 (fr)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH05245504A (ja) * 1992-03-05 1993-09-24 Nippon Steel Corp 圧延機
JPH06262226A (ja) * 1993-03-10 1994-09-20 Nippon Steel Corp 板圧延機の操業方法
JP2009195928A (ja) * 2008-02-20 2009-09-03 Jtekt Corp 多段圧延機のバックアップロール装置
JP2011240412A (ja) * 2011-09-08 2011-12-01 Mitsubishi-Hitachi Metals Machinery Inc 回転軸に軸着された外輪回転のバックアップロールベアリング潤滑機構
JP2015161335A (ja) * 2014-02-26 2015-09-07 日本精工株式会社 外輪回転形転がり軸受及び圧延機

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH05245504A (ja) * 1992-03-05 1993-09-24 Nippon Steel Corp 圧延機
JPH06262226A (ja) * 1993-03-10 1994-09-20 Nippon Steel Corp 板圧延機の操業方法
JP2009195928A (ja) * 2008-02-20 2009-09-03 Jtekt Corp 多段圧延機のバックアップロール装置
JP2011240412A (ja) * 2011-09-08 2011-12-01 Mitsubishi-Hitachi Metals Machinery Inc 回転軸に軸着された外輪回転のバックアップロールベアリング潤滑機構
JP2015161335A (ja) * 2014-02-26 2015-09-07 日本精工株式会社 外輪回転形転がり軸受及び圧延機

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KR20240007231A (ko) 2024-01-16
CN117545565A (zh) 2024-02-09

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