JPH07306004A - Shape measurement roller - Google Patents
Shape measurement rollerInfo
- Publication number
- JPH07306004A JPH07306004A JP6097206A JP9720694A JPH07306004A JP H07306004 A JPH07306004 A JP H07306004A JP 6097206 A JP6097206 A JP 6097206A JP 9720694 A JP9720694 A JP 9720694A JP H07306004 A JPH07306004 A JP H07306004A
- Authority
- JP
- Japan
- Prior art keywords
- roller
- shape measuring
- stator
- measuring roller
- rotating
- 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
Classifications
-
- 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
- B21B38/02—Methods or devices for measuring, detecting or monitoring specially adapted for metal-rolling mills, e.g. position detection, inspection of the product for measuring flatness or profile of strips
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Length-Measuring Instruments Using Mechanical Means (AREA)
- A Measuring Device Byusing Mechanical Method (AREA)
- Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
- Magnetic Bearings And Hydrostatic Bearings (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】この発明は、形状測定ローラに関
し、特に、金属薄板や箔を製造する圧延機において、製
造された製品の形状を良好にするために間接的に平坦度
を測定する形状測定ローラに関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a shape measuring roller, and more particularly to a shape-measuring roller which measures flatness indirectly in order to improve the shape of a manufactured product in a rolling machine for manufacturing thin metal sheets and foils. Regarding measuring roller.
【０００２】[0002]
【従来の技術】図６は、従来の形状測定ローラを用いた
圧延機の一例の概略を示す図であり、図７および図８
は、従来の形状測定ローラの動作を説明するための図で
ある。特に、図７は、圧延機が形状測定ローラに及ぼす
面圧を示した図であり、図８は、形状測定ローラで用い
られる静圧軸受を示した図である。2. Description of the Related Art FIG. 6 is a diagram showing an outline of an example of a rolling mill using a conventional shape measuring roller.
FIG. 8 is a diagram for explaining the operation of a conventional shape measuring roller. In particular, FIG. 7 is a diagram showing the surface pressure exerted on the shape measuring roller by the rolling mill, and FIG. 8 is a diagram showing the hydrostatic bearing used in the shape measuring roller.
【０００３】図６を参照して、金属薄板や箔である圧延
板１は、圧延ローラ３で製品として必要とされる板厚に
され、巻取ロール９で巻取られる。圧延ローラ３と巻取
ロール９との間には、圧延板１を巻取ロール９に巻取る
ためのガイドローラ７と、圧延板１の平坦度を測定する
形状測定ローラ５が設けられる。さらに、図７に示すよ
うに、形状測定ローラ５は、圧延板１の幅に複数設けら
れ、固定側８ａ，８ｂに固定された支持軸６によって支
持される。そして、それぞれの形状測定ローラ５には、
圧延板１の平坦度による張力分布に応じた面圧ｐ1 ，ｐ
2 ，…ｐn-1 ，ｐn が加わっている。さらに、図８に示
すように、形状測定ローラ５には、支持軸６に対して回
転する回転ローラ４と、支持軸６との間の隙間により変
化する圧力を検出するノズル１１ａ，１１ｂが支持軸６
の上部と下部に設けられる。ノズル１１ａ，１１ｂはそ
れぞれ圧力計１３ａ，１３ｂに接続され、圧力計１３ａ
は演算器１５の−端子に接続され、圧力計１３ｂは演算
器１５の＋端子に接続されている。Referring to FIG. 6, a rolling plate 1 which is a thin metal plate or foil is rolled by a rolling roller 3 into a plate thickness required as a product and wound by a winding roll 9. Between the rolling roller 3 and the winding roll 9, a guide roller 7 for winding the rolling plate 1 on the winding roll 9 and a shape measuring roller 5 for measuring the flatness of the rolling plate 1 are provided. Further, as shown in FIG. 7, a plurality of shape measuring rollers 5 are provided in the width of the rolling plate 1, and are supported by the support shaft 6 fixed to the fixed sides 8a and 8b. And, in each shape measuring roller 5,
Surface pressures p 1 and p according to the tension distribution due to the flatness of the rolled plate 1
2 , ... P n-1 , p n are added. Further, as shown in FIG. 8, the shape measuring roller 5 is supported by the rotating roller 4 which rotates with respect to the support shaft 6 and the nozzles 11 a and 11 b which detect the pressure which changes due to the gap between the support shaft 6. Axis 6
Are provided on the upper and lower parts of the. The nozzles 11a and 11b are connected to the pressure gauges 13a and 13b, respectively.
Is connected to the-terminal of the calculator 15, and the pressure gauge 13b is connected to the + terminal of the calculator 15.
【０００４】次に、図７および図８を用いて動作につい
て説明する。圧延板１の平坦度は幅方向の張力分布によ
り知ることができる。図７に示すように、支持軸６の内
部を圧縮空気が流れており、形状測定ローラ５のそれぞ
れに加わる張力の分布は面圧ｐ1 ，ｐ2 ，…ｐn-1 ，ｐ
n となっている。この面圧ｐ 1 〜ｐn のうちの１つであ
る面圧ｐに注目すると、図８に示すように、支持軸６内
部に圧縮空気が吹込まれることで回転ローラ４を支持す
る静圧軸受の軸受剛性に応じて、回転ローラ４と支持軸
６との間の隙間が変化する。すなわち、軸受剛性に応じ
て、回転ローラ４とノズル１１ａとの間の隙間が小さく
なり、回転ローラ４とノズル１１ｂとの間の隙間が大き
くなる。したがって、圧力計１３ａで上方の空気圧力を
測定し、圧力計１３ｂで下方の空気圧力を測定して、演
算器１５でその差を演算すれば、面圧ｐの大きさに応じ
た演算結果が得られる。この演算結果である出力は、圧
延板１の厚みの厚い部分では面圧が大きくなるため大き
な値となり、厚みの薄い部分では面圧が小さくなるため
小さな値となり、この値の変化を図１に示した圧延ロー
ラ３を制御する図示しない制御部へフィードバックすれ
ば、圧延板１の板厚をコントロールできる。Next, the operation will be described with reference to FIGS. 7 and 8.
Explain. The flatness of the rolled plate 1 depends on the tension distribution in the width direction.
You can know As shown in FIG.
Compressed air is flowing through the parts, and each of the shape measuring rollers 5
The distribution of tension applied to this is the contact pressure p1, P2,… Pn-1, P
nHas become. This surface pressure p 1~ PnOne of
Focusing on the surface pressure p, the inside of the support shaft 6
Supports the rotating roller 4 by blowing compressed air into the section
Depending on the bearing rigidity of the hydrostatic bearing,
The gap with 6 changes. That is, depending on the bearing rigidity
The gap between the rotating roller 4 and the nozzle 11a is small.
Therefore, the gap between the rotating roller 4 and the nozzle 11b is large.
Become Therefore, the pressure gauge 13a measures the upper air pressure.
Measure, measure the lower air pressure with pressure gauge 13b, and
If the difference is calculated by the calculator 15, it can be calculated according to the magnitude of the surface pressure p.
The obtained calculation result is obtained. The output that is the result of this calculation is the pressure
Since the surface pressure is large in the thick part of the rolled sheet 1, it is large.
Since the surface pressure becomes small in the thin part,
It becomes a small value and the change of this value is shown in Fig. 1.
Feedback to a control unit (not shown) that controls the laser 3.
Thus, the plate thickness of the rolled plate 1 can be controlled.
【０００５】[0005]
【発明が解決しようとする課題】しかし、上述した図７
に示すような形状測定ローラで用いられる静圧軸受は、
軸受剛性が小さいため、比較的薄くて面圧の大きくなら
ないような製品を製造する圧延機で用いられなければな
らないという欠点がある。However, the above-mentioned FIG.
The hydrostatic bearing used in the shape measuring roller as shown in
Since the bearing rigidity is low, it has a drawback that it must be used in a rolling mill for manufacturing a product that is relatively thin and has a small surface pressure.
【０００６】ゆえに、この発明は、上記のような問題点
を解決し、厚みの厚い圧延板として製造された製品のむ
らを検出でき、温度変化による測定精度への影響が小さ
い軸受を備える形状測定ローラを提供することである。Therefore, the present invention solves the above problems, can detect unevenness of a product manufactured as a thick rolled plate, and has a shape measuring roller equipped with a bearing that has little influence on measurement accuracy due to temperature change. Is to provide.
【０００７】[0007]
【課題を解決するための手段】請求項１の発明に係る形
状測定ローラは、板状部材の平坦度を検出する形状測定
ローラであって、その外周面が板状部材に接する回転ロ
ーラと、回転ローラに対して同軸的に設けられ、回転ロ
ーラを磁気軸受するための電磁石と、回転ローラと電磁
石との間の隙間を検出するギャップセンサと、電磁石に
おけるコイル電流の変化に応じて板状部材の平坦度を検
出する検出手段とを備えて構成される。A shape measuring roller according to the invention of claim 1 is a shape measuring roller for detecting the flatness of a plate-shaped member, and a rotating roller whose outer peripheral surface is in contact with the plate-shaped member, An electromagnet that is provided coaxially with the rotating roller and serves as a magnetic bearing for the rotating roller, a gap sensor that detects a gap between the rotating roller and the electromagnet, and a plate-shaped member according to a change in coil current in the electromagnet. And a detecting means for detecting the flatness of the.
【０００８】請求項２では、請求項１の回転ローラは軸
方向に複数に分割され、さらに、各回転ローラ間にそれ
ぞれ設けられるすべり部材と、回転ローラの両端に設け
られるスラスト磁気軸受とを備えて構成される。According to a second aspect of the present invention, the rotary roller of the first aspect is divided into a plurality of parts in the axial direction, and further comprises a sliding member provided between the respective rotary rollers, and a thrust magnetic bearing provided at both ends of the rotary roller. Consists of
【０００９】請求項３では、請求項２のすべり部材は、
各回転ローラにスラスト方向でかける面圧に対して剛性
が大きく、かつラジアル方向のすべりに対して摩擦が小
さな材質で形成される。In the third aspect, the sliding member of the second aspect is
It is made of a material that has a large rigidity with respect to the surface pressure applied to each rotating roller in the thrust direction and has a small friction with respect to the sliding in the radial direction.
【００１０】請求項４では、請求項１の回転ローラは複
数に分割され、電磁石は各回転ローラに少なくとも２つ
ずつ設けられる。According to a fourth aspect of the present invention, the rotary roller of the first aspect is divided into a plurality of parts, and at least two electromagnets are provided for each rotary roller.
【００１１】請求項５の発明に係る形状測定ローラは、
さらに、請求項４の分割された各回転ローラの両端に設
けられるベアリングを備えて構成される。The shape measuring roller according to the invention of claim 5 is
Further, it is provided with bearings provided at both ends of each of the divided rotary rollers.
【００１２】[0012]
【作用】この発明に係る形状測定ローラは、回転ローラ
を電磁石を用いた軸受剛性の大きな磁気軸受で支持し、
厚みの厚い板状部材であっても支持できるため、その平
坦度を電磁石のコイル電流の変化として検出することで
測定できる。In the shape measuring roller according to the present invention, the rotating roller is supported by a magnetic bearing having a large bearing rigidity using an electromagnet,
Since even a thick plate-shaped member can be supported, the flatness can be measured by detecting the flatness as a change in the coil current of the electromagnet.
【００１３】[0013]
【実施例】図１は、この発明の一実施例による形状測定
ローラの断面図であり、特に、図１（ａ）は、製品の搬
送方向からみた形状測定ローラの上部ラジアル方向断面
図であり、図１（ｂ）は、その形状測定ローラの搬送方
向断面図である。1 is a sectional view of a shape measuring roller according to an embodiment of the present invention. In particular, FIG. 1 (a) is a sectional view of the shape measuring roller in the upper radial direction as seen from the product conveying direction. 1B is a cross-sectional view of the shape measuring roller in the transport direction.
【００１４】図１を参照して、固定台２１に固定された
固定軸２３には、ラジアル磁気軸受のステータ２４が固
定されている。ステータ２４は、図１（ｂ）に示すよう
に、それぞれのステータコア２５にコイル２６が巻かれ
たものであり、そのステータ２４に対向して、ラジアル
磁気軸受のロータ２７が回転ローラ２９に含まれて設け
られる。回転ローラ２９とステータ２４の間の隙間を検
出するためのギャップセンサ２８ａがステータ２４の上
端に設けられ、図１（ｂ）に示すように他のギャップセ
ンサ２８ｂ，２８ｃ，２８ｄも回転ローラ２９に対向し
て、ギャップセンサ２８ａから９０°ずつずらした位置
にそれぞれ設けられる。これらの構成によって形状測定
ローラの１ユニットが構成され、圧延板の幅に応じて多
数のユニットが並べられる。Referring to FIG. 1, a stator 24 of a radial magnetic bearing is fixed to a fixed shaft 23 fixed to a fixed base 21. As shown in FIG. 1B, the stator 24 is formed by winding a coil 26 around each stator core 25, and a rotor 27 of a radial magnetic bearing is included in the rotating roller 29 so as to face the stator 24. Is provided. A gap sensor 28a for detecting the gap between the rotating roller 29 and the stator 24 is provided at the upper end of the stator 24, and the other gap sensors 28b, 28c, 28d are also provided on the rotating roller 29 as shown in FIG. They are provided so as to face each other and to be displaced by 90 ° from the gap sensor 28a. With these configurations, one unit of the shape measuring roller is configured, and a large number of units are arranged according to the width of the rolled plate.
【００１５】多数並べられたユニットをスラスト方向で
支持するために、たとえばすべり部材３１が回転ローラ
２９と回転ローラ３０の間に設けられる。このように、
各回転ローラ間はすべり部材を介して連結される。この
すべり部材３１は、スラスト方向の面圧に対して変形が
小さく、回転ローラ２９，３０のような各々の回転ロー
ラのラジアル方向への偏位を比較的自由にとることがで
きるような摩擦係数の小さな部材で形成されている。さ
らに、両端の回転ローラをスラスト方向で支持するため
に、両端の回転ローラの１つである回転ローラ２９に固
定されるロータ３６と、固定軸２３に固定されるステー
タコア３３にコイル３５を巻くことで構成されるステー
タ３７が設けられる。スラスト磁気軸受を構成するロー
タ３６とステータ３７との間の隙間を検出するためのギ
ャップセンサ３４がステータコア３３の上面に設けられ
る。In order to support a large number of units arranged in the thrust direction, for example, a sliding member 31 is provided between the rotating rollers 29 and 30. in this way,
The rotating rollers are connected to each other via a sliding member. The sliding member 31 has a small deformation with respect to the surface pressure in the thrust direction, and the friction coefficient that allows the radial deviation of each of the rotating rollers such as the rotating rollers 29 and 30 to be taken relatively freely. It is formed of a small member. Further, in order to support the rotating rollers at both ends in the thrust direction, the coil 35 is wound around the rotor 36 fixed to the rotating roller 29, which is one of the rotating rollers at both ends, and the stator core 33 fixed to the fixed shaft 23. Is provided with a stator 37. A gap sensor 34 for detecting a gap between the rotor 36 and the stator 37 that form the thrust magnetic bearing is provided on the upper surface of the stator core 33.
【００１６】図２は、この発明の一実施例による形状測
定ローラで用いられる電磁石のコイル電流を検出する第
１の方法を説明するための図である。図２を参照して、
図１に示した形状測定ローラの動作についても含めて説
明する。FIG. 2 is a diagram for explaining the first method for detecting the coil current of the electromagnet used in the shape measuring roller according to the embodiment of the present invention. Referring to FIG.
The operation of the shape measuring roller shown in FIG. 1 will also be described.
【００１７】圧延板より回転ローラ２９にかかる圧力ｐ
の方向へ形状測定ローラの中心から延びる軸をＸ軸と
し、それに対してＹ軸を設定する。Ｘ軸の正および負の
方向に設けられたコイルをそれぞれコイルＸ2 ，Ｘ1 と
し、Ｙ軸の正および負の方向に設けられたコイルをそれ
ぞれコイルＹ2 ，Ｙ1 とする。コイルＸ1 の一端を電源
６０に接続し、他端をトランジスタ６１のコレクタ端子
（図ではＣで表わす）に接続し、トランジスタ６１のエ
ミッタ端子（図ではＥで表わす）を一方が接地された抵
抗６２に接続して、トランジスタ６１と抵抗６２と接続
する接続点から抵抗６２の両端にかかる電圧を出力す
る。圧力ｐの変化は、圧延板の平坦度を表わすことがで
き、コイルＸ1 を流れる電流がその変化に応答して変化
するので、抵抗６２の両端に加わる電圧値を出力として
検出することにより、圧延板の平坦度を測定できる。The pressure p applied to the rotating roller 29 by the rolling plate
The axis extending from the center of the shape measuring roller in the direction of is the X axis, and the Y axis is set for it. The coils provided in the positive and negative directions of the X-axis are coils X 2 and X 1 , respectively, and the coils provided in the positive and negative directions of the Y-axis are coils Y 2 and Y 1 , respectively. One end of the coil X 1 is connected to the power supply 60, the other end is connected to the collector terminal (represented by C in the figure) of the transistor 61, and the emitter terminal (represented by E in the figure) of the transistor 61 is grounded at one end. A voltage applied to both ends of the resistor 62 is output from a connection point connecting the transistor 62 and the resistor 62. The change in the pressure p can represent the flatness of the rolled plate, and the current flowing through the coil X 1 changes in response to the change. Therefore, by detecting the voltage value applied across the resistor 62 as an output, The flatness of the rolled plate can be measured.
【００１８】図３は、この発明の一実施例による形状測
定ローラで用いられる電磁石のコイル電流を検出する第
２の方法を説明するための図である。以下、図２と異な
る部分について説明する。FIG. 3 is a diagram for explaining a second method for detecting the coil current of the electromagnet used in the shape measuring roller according to the embodiment of the present invention. Hereinafter, parts different from FIG. 2 will be described.
【００１９】図３では、圧力ｐのかかる方向から左側に
４５°ずれた方向へ形状測定ローラの中心から延びる軸
をＸ軸とし、それに対してＹ軸を設定する。Ｘ軸および
Ｙ軸に対してコイルＸ1 ，Ｘ2 ，Ｙ1 ，Ｙ2 は、図２に
示した位置関係と同様とする。このように設定されたコ
イルＸ1 ，Ｘ2 ，Ｙ1 ，Ｙ2 では、圧力ｐの真下に検出
すべきコイルが存在しないため、コイルＸ1 とＹ1 のコ
イル電流について検出する必要がある。すなわち、コイ
ルＸ1 ，Ｙ1 の一端を電源６０に接続し、他端をそれぞ
れトランジスタ６３，６４のコレクタ端子に接続し、ト
ランジスタ６３，６４のそれぞれのエミッタ端子を一端
が接地された抵抗６５，６６に接続する。そして、トラ
ンジスタ６３と抵抗６５との間の接続点とトランジスタ
６４と抵抗６６との間の接続点からそれぞれの出力を加
算器６７に入力してその和を出力する。このような構成
により、圧延板から回転ローラ２９に加わる圧力ｐの変
化に応答して、コイルＸ1 ，Ｙ1 を流れる電流は変化す
るので、抵抗６５の両端に加わる電圧と抵抗６６の両端
に加わる電圧を加算器６７に入力して和を演算すれば、
その出力は圧力ｐの変化を表わすことができる。In FIG. 3, the axis extending from the center of the shape measuring roller in the direction deviated by 45 ° to the left from the direction in which the pressure p is applied is defined as the X axis, and the Y axis is set. The coils X 1 , X 2 , Y 1 and Y 2 have the same positional relationship as shown in FIG. 2 with respect to the X axis and the Y axis. In the coils X 1 , X 2 , Y 1 , and Y 2 set in this way, there is no coil to be detected immediately below the pressure p, so it is necessary to detect the coil currents of the coils X 1 and Y 1 . That is, one ends of the coils X 1 and Y 1 are connected to the power source 60, the other ends thereof are connected to the collector terminals of the transistors 63 and 64, respectively, and the emitter terminals of the transistors 63 and 64 are connected to the resistor 65 whose one end is grounded. Connect to 66. Then, the respective outputs are input to the adder 67 from the connection point between the transistor 63 and the resistor 65 and the connection point between the transistor 64 and the resistor 66, and the sum is output. With such a configuration, the current flowing through the coils X 1 and Y 1 changes in response to the change in the pressure p applied to the rotary roller 29 from the rolling plate, so that the voltage applied across the resistor 65 and the voltage applied across the resistor 66. If the applied voltage is input to the adder 67 and the sum is calculated,
The output can represent the change in pressure p.
【００２０】図４は、この発明の他の実施例による形状
測定ローラの断面図であり、特に、図４（ａ）は、製品
の搬送方向から見た形状測定ローラの上部ラジアル方向
断面図であり、図４（ｂ）は、その形状測定ローラの搬
送方向の断面図である。図５は、図４（ａ）の破線で囲
まれた部分の拡大図である。FIG. 4 is a sectional view of a shape measuring roller according to another embodiment of the present invention. In particular, FIG. 4A is an upper radial sectional view of the shape measuring roller viewed from the product conveying direction. FIG. 4B is a sectional view of the shape measuring roller in the transport direction. FIG. 5 is an enlarged view of a portion surrounded by a broken line in FIG.
【００２１】図４を参照して、固定軸２３には、ラジア
ル磁気軸受のステータ４１とステータ４２が固定されて
いる。ステータ４１は、ステータコア４３にコイル４５
が巻かれたものであり、ステータ４２は、ステータコア
４４にコイル４６が巻かれたものである。ステータ４
１，４２のそれぞれに対向して設けられるロータ５１，
５２を含む回転ローラ５３が設けられる。ロータ５２と
ステータコア４３との間の隙間を検出するギャップセン
サ４８ａがステータ４１の上部一端に設けられ、図４
（ｂ）に示すように他のギャップセンサ４８ｂ，４８
ｃ，４８ｄも回転ローラ５３に対向してギャップセンサ
４８ａから９０°ずつずらした位置に設けられる。ロー
タ５１とステータコア４４との間の隙間を検出するギャ
ップセンサ４７ａがステータ４２の上部一端に設けら
れ、図示していないが他のギャップセンサ４７ｂ，４７
ｃ，４７ｄも同様に回転ローラ５３に対向して設けられ
る。さらに、回転ローラ５３の両端に対向するステータ
４１，４２には、ベアリング５０，４９が内輪側を固定
されて設けられる。このようにして構成される形状測定
ローラを１ユニットとし、製品である圧延板の幅に合わ
せて複数の形状測定ローラが設けられる。Referring to FIG. 4, a stator 41 and a stator 42 of a radial magnetic bearing are fixed to the fixed shaft 23. The stator 41 includes a stator core 43 and a coil 45.
In the stator 42, a coil 46 is wound around a stator core 44. Stator 4
A rotor 51 provided to face each of
A rotating roller 53 including 52 is provided. A gap sensor 48a for detecting a gap between the rotor 52 and the stator core 43 is provided at one end of the upper portion of the stator 41.
As shown in (b), the other gap sensors 48b, 48
The c and 48d are also provided facing the rotating roller 53 at positions offset by 90 ° from the gap sensor 48a. A gap sensor 47a for detecting the gap between the rotor 51 and the stator core 44 is provided at one upper end of the stator 42, and other gap sensors 47b, 47 (not shown) are provided.
Similarly, c and 47d are provided so as to face the rotary roller 53. Further, bearings 50 and 49 are provided with the inner ring side fixed to the stators 41 and 42 facing both ends of the rotating roller 53. The shape measuring roller configured in this way is taken as one unit, and a plurality of shape measuring rollers are provided according to the width of the rolled plate as a product.
【００２２】次に、動作について説明する。この実施例
では、図１に示した実施例におけるすべり部材３１やロ
ータ３６とステータ３７により構成されるスラスト磁気
軸受の代わりにベアリング４９，５０が設けられ、さら
に、１つの回転ローラ５３に対してロータ５１，５２と
ステータ４１，４２により構成される２つのラジアル磁
気軸受が設けられている。したがって、図示していない
制御部で２つのラジアル磁気軸受を制御すれば回転ロー
ラ５３は、以下のような状態で浮上する。すなわち、図
５に示すように、ロータ５１とステータコア４４との間
の隙間であるギャップ５４ｂが、ベアリング４９の外輪
側と回転ローラ５３との間の隙間であるギャップ５５ｂ
よりも大きな値で、かつベアリング４９の内側面と回転
ローラ５３との間を非接触にしている状態で、回転ロー
ラ５３は浮上する。他に設けられるベアリングたとえば
ベアリング５０がベアリング４９と回転ローラ５３との
関係と同じ状態であれば、ベアリング４９，５０など
は、回転ローラ５３などのスラスト方向の動きを規制す
る役目と、ラジアル磁気軸受が制御不能になった場合の
回転ローラ５３などを受けることのできるいわゆるタッ
チダウンベアリングの役目を果たすことができる。そし
て、このような状態で浮上した回転ローラ５３に圧延機
で製品として必要とされる板厚になった圧延板が搬送さ
れ、その圧延板にむらが生じていれば、図２または図３
に示した方法でこの実施例においてもそのむらを検出で
きる。Next, the operation will be described. In this embodiment, bearings 49 and 50 are provided instead of the thrust magnetic bearing constituted by the sliding member 31 and the rotor 36 and the stator 37 in the embodiment shown in FIG. Two radial magnetic bearings constituted by the rotors 51 and 52 and the stators 41 and 42 are provided. Therefore, when the two radial magnetic bearings are controlled by a control unit (not shown), the rotating roller 53 floats in the following state. That is, as shown in FIG. 5, the gap 54b, which is the gap between the rotor 51 and the stator core 44, is the gap 55b, which is the gap between the outer ring side of the bearing 49 and the rotating roller 53.
The rotation roller 53 floats with a larger value and in a state where the inner surface of the bearing 49 and the rotation roller 53 are not in contact with each other. If other bearings, such as the bearing 50, are in the same state as the relationship between the bearing 49 and the rotating roller 53, the bearings 49, 50 and the like serve to restrict the movement of the rotating roller 53 and the like in the thrust direction, and the radial magnetic bearing. Can serve as a so-called touch-down bearing that can receive the rotating roller 53 and the like when the control becomes uncontrollable. Then, if the rolling plate having the plate thickness required as a product by the rolling mill is conveyed to the rotating roller 53 that floats in such a state and the rolling plate has unevenness, the rolling plate shown in FIG.
Even in this embodiment, the unevenness can be detected by the method shown in FIG.
【００２３】[0023]
【発明の効果】以上のようにこの発明によれば、板状部
材と外周面が接する回転ローラを磁気軸受で非接触保持
するため、その負荷容量は静圧軸受よりも数倍大きいの
で、板厚の厚い製品のむらを検出することができる。さ
らに、軸受剛性を大きくできることに伴い軸受ギャップ
も大きくでき、そのため温度変化に対する測定精度は影
響を受けにくいので、所望の測定結果が得られる。As described above, according to the present invention, since the rotating roller whose outer peripheral surface is in contact with the plate-shaped member is held by the magnetic bearing in a non-contact manner, its load capacity is several times larger than that of the hydrostatic bearing. Unevenness of thick products can be detected. Further, as the bearing rigidity can be increased, the bearing gap can also be increased, so that the measurement accuracy with respect to temperature changes is not easily affected, and a desired measurement result can be obtained.
【図１】この発明の一実施例による形状測定ローラの断
面図である。FIG. 1 is a sectional view of a shape measuring roller according to an embodiment of the present invention.
【図２】この発明の一実施例による形状測定ローラで圧
延板の平坦度を検出する方法を説明するための第１の図
である。FIG. 2 is a first diagram for explaining a method for detecting the flatness of a rolled plate with a shape measuring roller according to an embodiment of the present invention.
【図３】この発明の一実施例による形状測定ローラで圧
延板の平坦度を検出する方法を説明するための第２の図
である。FIG. 3 is a second diagram for explaining a method for detecting the flatness of a rolled plate with a shape measuring roller according to an embodiment of the present invention.
【図４】この発明のその他の実施例による形状測定ロー
ラの断面図である。FIG. 4 is a sectional view of a shape measuring roller according to another embodiment of the present invention.
【図５】図４の要部拡大図である。FIG. 5 is an enlarged view of a main part of FIG.
【図６】従来の形状測定ローラを用いた圧延機の概略を
示す図である。FIG. 6 is a diagram showing an outline of a rolling mill using a conventional shape measuring roller.
【図７】従来の形状測定ローラの外周に圧延板が及ぼす
面圧を示した図である。FIG. 7 is a diagram showing the surface pressure exerted by a rolled plate on the outer circumference of a conventional shape measuring roller.
【図８】従来の形状測定ローラで用いられる静圧軸受を
示した図である。FIG. 8 is a diagram showing a hydrostatic bearing used in a conventional shape measuring roller.
１ 圧延板 ４，２９，３０，５３ 回転ローラ ５ 形状測定ローラ １ａ，１ｂ，２８，３４，４７，４８ ギャップセンサ ２４，３７，４１ ステータ ２５，３３，４３，４４ ステータコア ２６，３５，４５，４６ コイル ２７，３６，５１，５２ ロータ ３１ すべり部材 ４９，５０ ベアリング ６０ 電源 ６１，６３，６４ トランジスタ ６２，６５，６６ 抵抗 1 Rolling Plate 4, 29, 30, 53 Rotating Roller 5 Shape Measuring Roller 1a, 1b, 28, 34, 47, 48 Gap Sensor 24, 37, 41 Stator 25, 33, 43, 44 Stator Core 26, 35, 45, 46 Coil 27,36,51,52 Rotor 31 Sliding member 49,50 Bearing 60 Power supply 61,63,64 Transistor 62,65,66 Resistance
───────────────────────────────────────────────────── フロントページの続き (51)Int.Cl.6 識別記号 庁内整理番号 ＦＩ 技術表示箇所 Ｇ０１Ｂ 3/12 5/20 Ｇ 7/34 １０１ Ａ // Ｂ２１Ｂ 37/00 ＢＢＨ ＢＢＲ 38/02 8315−4Ｅ Ｂ２１Ｂ 37/00 １１６ Ｍ ─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. 6 Identification code Internal reference number FI Technical display location G01B 3/12 5/20 G 7/34 101 A // B21B 37/00 BBH BBR 38/02 8315 -4E B21B 37/00 116 M
Claims (5)
ーラであって、 その外周面が前記板状部材に接する回転ローラと、 前記回転ローラに対して同軸的に設けられ、前記回転ロ
ーラを磁気軸受するための電磁石と、 前記回転ローラと前記電磁石との間の隙間を検出するギ
ャップセンサと、 前記電磁石におけるコイル電流の変化に応じて前記板状
部材の平坦度を検出する検出手段とを備えた形状測定ロ
ーラ。1. A shape measuring roller for detecting flatness of a plate-shaped member, the rotary roller having an outer peripheral surface in contact with the plate-shaped member, and the rotary roller provided coaxially with the rotary roller. An electromagnet for magnetic bearing, a gap sensor that detects a gap between the rotating roller and the electromagnet, and a detection unit that detects flatness of the plate-shaped member according to a change in a coil current in the electromagnet. Shape measuring roller equipped with.
れ、さらに、 前記各回転ローラ間にそれぞれ設けられるすべり部材
と、 前記回転ローラの両端に設けられるスラスト磁気軸受と
を備えた、請求項１記載の形状測定ローラ。2. The rotating roller is divided into a plurality of parts in the axial direction, and further comprises a sliding member provided between the rotating rollers and thrust magnetic bearings provided at both ends of the rotating roller. 1. The shape measuring roller according to 1.
スラスト方向でかける面圧に対して剛性が大きく、かつ
ラジアル方向のすべりに対して摩擦が小さな材質で形成
されることを特徴とする、請求項２記載の形状測定ロー
ラ。3. The sliding member is formed of a material having a high rigidity with respect to a surface pressure applied to each of the rotary rollers in a thrust direction and a small friction with respect to a sliding in a radial direction. Item 2. The shape measuring roller according to item 2.
電磁石は、各回転ローラに少なくとも２つずつ設けられ
ることを特徴とする、請求項１記載の形状測定ローラ。4. The shape measuring roller according to claim 1, wherein the rotating roller is divided into a plurality of pieces, and at least two electromagnets are provided on each rotating roller.
両端に設けられるベアリングを備えた、請求項４記載の
形状測定ローラ。5. The shape measuring roller according to claim 4, further comprising bearings provided at both ends of each of the divided rotary rollers.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP09720694A JP3512227B2 (en) | 1994-05-11 | 1994-05-11 | Shape measuring roller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP09720694A JP3512227B2 (en) | 1994-05-11 | 1994-05-11 | Shape measuring roller |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH07306004A true JPH07306004A (en) | 1995-11-21 |
| JP3512227B2 JP3512227B2 (en) | 2004-03-29 |
Family
ID=14186153
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP09720694A Expired - Fee Related JP3512227B2 (en) | 1994-05-11 | 1994-05-11 | Shape measuring roller |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3512227B2 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105423863A (en) * | 2014-09-19 | 2016-03-23 | 鞍钢股份有限公司 | Large-scale tapered roller bearing play detection and adjustment method |
| CN110375684A (en) * | 2019-08-21 | 2019-10-25 | 华能四川水电有限公司 | A kind of hydroturbine rotor non-roundness measurement method |
| CN114570777A (en) * | 2022-03-04 | 2022-06-03 | 洛阳盖尔测控科技有限公司 | Sectional magnetic suspension type plate shape measuring roller |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107687831B (en) * | 2017-08-14 | 2019-08-23 | 中国航发沈阳发动机研究所 | Aero-engine turn, stator radial clearance calculation method |
-
1994
- 1994-05-11 JP JP09720694A patent/JP3512227B2/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105423863A (en) * | 2014-09-19 | 2016-03-23 | 鞍钢股份有限公司 | Large-scale tapered roller bearing play detection and adjustment method |
| CN110375684A (en) * | 2019-08-21 | 2019-10-25 | 华能四川水电有限公司 | A kind of hydroturbine rotor non-roundness measurement method |
| CN114570777A (en) * | 2022-03-04 | 2022-06-03 | 洛阳盖尔测控科技有限公司 | Sectional magnetic suspension type plate shape measuring roller |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3512227B2 (en) | 2004-03-29 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPH01502608A (en) | Shape measuring instruments | |
| US4774424A (en) | Device for measuring the induction in the air gap of a magnetic bearing | |
| US20030122541A1 (en) | Method for determining the position of the rotor of an electric machine, and a position sensor | |
| JP3046676B2 (en) | An improved strip tension measurement device for use in coilers. | |
| US3413846A (en) | Device in strip mills for determining the distribution of strip tension over the width of the strip | |
| JP3512227B2 (en) | Shape measuring roller | |
| JP2023540415A (en) | Force measuring device for measuring tension in a running material web | |
| JPH11216516A (en) | Side guide equipment | |
| EP0775890B1 (en) | Strip shape detecting apparatus | |
| JPH11248444A (en) | Apparatus for measuring flatness of strip in movement | |
| JPS59120905A (en) | Device for measuring flatness of metallic strip under tension | |
| US4478062A (en) | Strip shape measuring roll | |
| JP4863041B2 (en) | Shape detection device | |
| JP3504424B2 (en) | Bearing wear detector for induction motors | |
| JPS62100602A (en) | Bearing gap sensor | |
| JP4953524B2 (en) | Transfer role | |
| CN114570777A (en) | Sectional magnetic suspension type plate shape measuring roller | |
| JP7484173B2 (en) | Bearing device and signal processing device | |
| JPH1122730A (en) | Magnetic bearing and magnetic bearing unit | |
| WO1992013267A1 (en) | Device for detecting abnormal portion in metal strip | |
| JPH05141905A (en) | Shape measuring device for metal strip | |
| JP2010121714A (en) | Controller of magnetic bearing | |
| JPH07314288A (en) | Spindle displacement detecting device for spindle unit | |
| JPS62288539A (en) | Apparatus for measuring tension of thin plate-shaped body | |
| JP2016161306A (en) | Torque detection device and torque detection method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 Effective date: 20031209 |
|
| A61 | First payment of annual fees (during grant procedure) |
Free format text: JAPANESE INTERMEDIATE CODE: A61 Effective date: 20040106 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20080116 Year of fee payment: 4 |
|
| S531 | Written request for registration of change of domicile |
Free format text: JAPANESE INTERMEDIATE CODE: R313531 |
|
| S533 | Written request for registration of change of name |
Free format text: JAPANESE INTERMEDIATE CODE: R313533 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20080116 Year of fee payment: 4 |
|
| R350 | Written notification of registration of transfer |
Free format text: JAPANESE INTERMEDIATE CODE: R350 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20090116 Year of fee payment: 5 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20090116 Year of fee payment: 5 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20100116 Year of fee payment: 6 |
|
| LAPS | Cancellation because of no payment of annual fees |