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1. 发明专利

JPH08238511A METHOD FOR SUPPRESSING VIBRATION OF MATERIAL TO BE ROLLED 失效
公开(公告)号：JPH08238511A
公开(公告)日：1996-09-17
申请号：JP4291095
申请日：1995-03-02
申请人： KOBE STEEL LTD
发明人： YONEZAWA TOMOSHI , SUZUKI EIICHI , SAKURAI AKIRA
IPC分类号： B65H23/188 , B21B37/00 , B21B37/48
摘要： PURPOSE: To suppress chattering of a material to be rolled by suppressing tension variation of the material to be rolled which is traveled between rolling mills and preventing transmission of tension variation from one rolling mill to the other. CONSTITUTION: In a vibration suppressing device 15, a control roll 9 for supporting the material 4 to be rolled which is traveled between the rolling mills 1 and for controlling the tension of this material 4 to be rolled is provided. On the control roll 9, a tension governor 16 for making the moment of inertia of this control roll 9 variable is provided. Then, by making the natural frequency of a system consisting of the material 4 to be rolled and respective rolls 7, 8, 9 between the rolling mills 1 smaller than a prescribed multiple of chattering generating frequency by adjusting the moment of inertia of the control roll 9, the vibration of the material 4 to be rolled is absorbed with the control roll 9. Consequently, the chattering of the material 4 to be rolled between the rolling mills 1 is suppressed as small as possible.

2. 发明专利

JPH08238510A METHOD FOR SUPPRESSING VIBRATION OF MATERIAL TO BE ROLLED 失效
公开(公告)号：JPH08238510A
公开(公告)日：1996-09-17
申请号：JP4290995
申请日：1995-03-02
申请人： KOBE STEEL LTD
发明人： SAKURAI AKIRA , SUZUKI EIICHI , YONEZAWA TOMOSHI
IPC分类号： B65H23/192 , B21B37/00 , B21B37/48
摘要： PURPOSE: To suppress chattering of a material to be rolled by suppressing tension variation of the material to be rolled which is traveled between rolling mills between the rolling mills and preventing transmission of tension variation from one rolling mill to the other. CONSTITUTION: In a vibration suppressing device 15, a control roll 9 for supporting the material 4 to be rolled which is traveled between rolling mills 1 and for controlling the tension of the material 4 to be rolled is provided. The rigidity of a supporting member 13 for supporting the control roll 9 is set so that the control roll 9 has natural frequency slightly larger than the chattering generating frequency of the chattering generated on the material 4 to be rolled between rolling mills 1. In this way, tension variation which is generated on the material 4 to be rolled is suppressed and, consequntly, the generation of chattering is prevented.

3. 发明专利

JPH067825A VIBRATION PROOFING DEVICE FOR STEEL SHEET 失效
公开(公告)号：JPH067825A
公开(公告)日：1994-01-18
申请号：JP16962792
申请日：1992-06-26
申请人： KOBE STEEL LTD , SHINKO ELECTRIC CO LTD
发明人： UEDA HIROKI , SAKURAI AKIRA , KATO MINORU , HAMAZAKI YOSHIHIRO , NAKAMURA MASAYA , GONDO KAZUHIKO , KURITA YUTAKA
IPC分类号： B21B39/00 , B21B39/14 , C23C2/00 , F16F15/03
摘要： PURPOSE:To efficiently control the vibration of a steel sheet without being affected by the vibration mode by providing plural electromagnets in the traveling direction of the steel sheet so as to correspond to the position of the belly of the vibration mode which is made to an object for vibration proof. CONSTITUTION:The displacement amount of the beltlike steel sheet 10 for traveling along a traveling path 11 is detected by position detectors 18 and 19, an electric current based on its signal is carried to the electromagnets 14 and 15, and 16 and 17, the attraction force of the electromagnet 14 and 15, and 16 and 17 is changed and the vibration of the steel sheet 10 is suppressed. Since the electromagnets 14 and 15, and 16 and 17 are corresponded to the belly of the vibration mode which is made to an object for the vibration proof of the steel sheet 10 at this time, the steel sheet 10 can be subjected to vibration proofing efficiently for each vibration mode.

4. 发明专利

JPH0532364A APPARATUS FOR CORRECTING WARP OF STEEL PLATE 失效
公开(公告)号：JPH0532364A
公开(公告)日：1993-02-09
申请号：JP19026091
申请日：1991-07-30
申请人： KOBE STEEL LTD
发明人： INOUE YOSHIO , HAMAZAKI YOSHIHIRO , SAKURAI AKIRA , UEDA HIROKI
IPC分类号： B21D1/00 , B65H23/188 , B65H23/34
摘要： PURPOSE:To surely correct the warp of a steel plate by the attraction of electromagnets. CONSTITUTION:In an apparatus for correcting the warp of a steel plate wherein electromagnets 12, 13 are provided on both sides of the strip-like steel plate 11 travelling longitudinally to correct the warp of the steel plate 11 by the attraction of the electromagnets 12, 13, actuators 14 for supporting the respective electromagnets 12, 13 are respectively provided such that the electromagnets 12, 13 be moved to and away from the steel plate 11. A control means 20 is provided to control the actuators 14 such that a distance between the respective electromagnets 12, 13 and the steel plate 11 is a distance ra in which the warp of the steel plate 11 can be corrected by the attraction of the electromagnets 12, 13.

5. 发明专利

JPH0469429A SUPPORTING DEVICE FOR ROTARY SHAFT 失效
公开(公告)号：JPH0469429A
公开(公告)日：1992-03-04
申请号：JP18033790
申请日：1990-07-06
申请人： KOBE STEEL LTD
发明人： SAKURAI AKIRA , KIHARA KAZUO
IPC分类号： B23Q11/00 , B02C13/14 , B04B9/12 , B23B19/02 , F16F15/02 , F16F15/10 , F26B5/08
摘要： PURPOSE:To safely perform the operation even in a region between two natural frequencies by constituting each connecting member in a manner wherein rigidity of a connecting member, extended in a direction equal to the extending direction of a rotary shaft, of the connecting members is larger than the rigidity of a connecting member extended in a direction orthogonal to the extending direction of the rotary shaft. CONSTITUTION:A plurality of rod-shaped connecting members 32 are interposed be tween the peripheral surface of a supporting cylinder 16 and the internal peripheral surface of a lower part housing 14, and the supporting cylinder 16 is connected to the lower part housing 14 by these connecting members 32 to support centrifugal force by rotation of the above-mentioned rotary shaft 20. In this device, only the connecting member 32 in the x-direction is arranged by omitting the connecting member 32 in the y-direction. By this device, two natural frequencies fx, fy are generated caused by extending the rotary shaft 20 in the x-direction, but a difference between x- directional rigidity and y-directional rigidity is increased by omitting the connecting member 32 in the y-direction to decrease the rigidity in that direction, so that a region (b) is extended by extending also a difference between the natural frequencies fx fy.

6. 发明专利

JPH0469422A VIBRO-ISOLATING BODY 失效
公开(公告)号：JPH0469422A
公开(公告)日：1992-03-04
申请号：JP18227590
申请日：1990-07-09
申请人： KOBE STEEL LTD
发明人： HONKE KOICHI , INOUE YOSHIO , SAKURAI AKIRA , SUGIMOTO AKIO
IPC分类号： E04B1/98 , E04F15/18 , E04F15/20 , F16F7/10 , F16F15/02
摘要： PURPOSE:To effectively use a viscoelastic material for vibro-isolating a continued body having many natural frequencies by distributing many additional mass objects in the viscoelastic material. CONSTITUTION:This vibro-isolating body is constituted as an integral structure such that many steel balls 12... as an additional mass object are distributed at random in a viscoelastic material 11 having high viscosity and elasticity such as silicon gel and the other gel-state substance. In the vibro-isolating body thus obtained, many damper structural units D... of spring-mass-viscous system are continued in many directions to constitute a dynamic damper of large number of degrees of freedom approximate to a distributed parameter system. Accordingly, this vibro-isolating body is provided with a very large number of natural frequencies and vibration modes to vibrate the steel balls 12... by exciting the vibration mode suited for the vibration when vibration is applied from the outside, and this vibratory energy is absorbed by viscosity of the viscoelastic material 11.

7. 发明专利

JPH05245522A 失效
公开(公告)号：JPH05245522A
公开(公告)日：1993-09-24
申请号：JP4890492
申请日：1992-03-05
申请人： KOBE STEEL LTD , SHINKO ELECTRIC CO LTD
发明人： SAKURAI AKIRA , UEDA HIROKI , KATO MINORU , HAMAZAKI YOSHIHIRO , NAKAMURA MASAYA , GONDO KAZUHIKO , KURITA YUTAKA
IPC分类号： B21B39/00 , B21B39/14 , B65H23/18 , B65H23/188 , G05D19/02
摘要： PURPOSE:To stably control the vibration of the steel sheet running on the running path by computing the position detecting signal of the steel sheet and controlling the attracting force of the electromagnet. CONSTITUTION:The vibration of the steel sheet 10 is damped by detecting the deviated position of the steel sheet 10 with a position detecting unit 13, and controlling the electric current applied to an electromagnet 12 with a control unit 14 based on the outputting signal. There are a proportional compensation which shows the effect applying the positive spring to the steel sheet 10 by making flow the electric current being proportional to the deviation of the steel sheet, a differential compensation applying the positive decay to the steel sheet 10 by making flow the electric current being proportional to the velocity of the steel sheet 10 and further an integral compensation damping so as to make the deviation to zero by integrating the deviation of the steel sheet 10 from the surface of running path 11 and making flow current to the electromagnet 12. The doping effect is improved by providing plural numbers of the electromagnets 12 and the position detecting units 13 by keeping the prescribed interval against the surface of running path 11 of the steel sheet 10.

8. 发明专利

JPH05246594A 失效
公开(公告)号：JPH05246594A
公开(公告)日：1993-09-24
申请号：JP4890292
申请日：1992-03-05
申请人： KOBE STEEL LTD , SHINKO ELECTRIC CO LTD
发明人： UEDA HIROKI , SAKURAI AKIRA , KATO MINORU , HAMAZAKI YOSHIHIRO , NAKAMURA MASAYA , GONDO KAZUHIKO , KURITA YUTAKA
IPC分类号： B65H23/18 , B65H23/188 , B65H43/00
摘要： PURPOSE:To prevent saturation of a magnetic flux inside a steel sheet and to perform high-efficient control of damping of the steel sheet. CONSTITUTION:An amount of displacement of a steel sheet 10 from a running road surface 11 is detected by means of a non-contact type position detector 18. Based on a signal from the position detector 18, an attraction force is generated by a pair of electromagnets 12 and 13 arranged on both sides of the running road surface 11 to suppress vibration of the steel sheet 10 running on the running road surface 11. Respective electromagnets 12 and 13 are arranged facing each other on both sides of the running road surface 11 in such a way that different magnetic poles are positioned opposite to each other.

9. 发明专利

JPH05106683A VIBRATION RESISTANT DEVICE 失效
公开(公告)号：JPH05106683A
公开(公告)日：1993-04-27
申请号：JP26786391
申请日：1991-10-16
申请人： KOBE STEEL LTD
发明人： SAKURAI AKIRA , INOUE YOSHIO , HISADA MANABU , TOMITA MASAHIRO , OI TSUTOMU , NISHIDA KAZUHIKO
IPC分类号： F16F15/02
摘要： PURPOSE:To safely protect a conveyed object from vibration by effectively suppressing transmission of the vibration to the conveyed object from a conveying means of truck or the like. CONSTITUTION:A vibration resistant device 60 is constituted such that a pendulum member comprising pendulum bars 66, pendulum base 68, etc., can be swiveled relating to a frame 62. A pendulum length Z of the pendulum member is set so that a vibration frequency with dynamical magnification 1 or less(that is, frequency sq. rt. 2fo sq. rt. 2 times natural frequency fo of pendulum) is smaller than a minimum frequency ft of generating maximum frequency acceleration in a conveying means.

10. 发明专利

JPH05104117A VIBRATION CONTROLLER FOR ROLLING MILL 失效
公开(公告)号：JPH05104117A
公开(公告)日：1993-04-27
申请号：JP26914091
申请日：1991-10-17
申请人： KOBE STEEL LTD
发明人： HAMAZAKI YOSHIHIRO , SAKURAI AKIRA
IPC分类号： B21B31/02 , B21B13/02 , B21B33/00 , B21B37/00 , F16F15/02
摘要： PURPOSE:To perform stable rolling by arranging in a housing a shock absorber having a spring constant whose fixed frequency is coincided with the frequency domain of the vertical vibration of the housing. CONSTITUTION:In a rolling mill 10, a drawing-down force is activated on work rolls 1 which are arranged in a pair of upper and lower to the vertical direction in the housing 5. A material 2 for roller is sandwiched between the work rolls 1 and rolled. Then, the shock absorber (vibration controller A) having the spring constant, whose fixed frequency is coincided with the frequency domain of the vertical vibration of the housing 5 that is generated at the time of rolling the material 2 for roller, is arranged in the housing 5. The vibration controller A is formed with a coil spring 7 and a weight 8. Thus, even if the material for roller is rolled at high speed, the vertical vibration of the rolling mill is controlled.

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