JPH0977450A - Lifting electromagnet - Google Patents
Lifting electromagnetInfo
- Publication number
- JPH0977450A JPH0977450A JP25701495A JP25701495A JPH0977450A JP H0977450 A JPH0977450 A JP H0977450A JP 25701495 A JP25701495 A JP 25701495A JP 25701495 A JP25701495 A JP 25701495A JP H0977450 A JPH0977450 A JP H0977450A
- Authority
- JP
- Japan
- Prior art keywords
- magnetic pole
- electromagnet
- main body
- iron core
- steel
- 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.)
- Pending
Links
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、吊上電磁石に関す
るものであり、更に詳しくは、電磁石本体の側面に相対
向して取付けられた可動磁極がそれぞれ昇降可能である
ため、１台でさまざまな形状の鋼材を吊上げて搬送する
ことができる吊上電磁石に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a hoisting electromagnet, and more specifically, since the movable magnetic poles attached to the side surfaces of the electromagnet body so as to face each other can be lifted and lowered, one unit can be used for various purposes. The present invention relates to a hoisting electromagnet capable of hoisting and conveying a shaped steel material.
【０００２】[0002]
【従来の技術】製鋼所や鋼材の加工工場等では、長尺の
鋼材を搬送するために吊上電磁石を利用している。図７
に、吊上電磁石Ｍ’を用いて鋼板５１を搬送する従来の
方法を示す。吊上電磁石Ｍ’のほぼ中央部には鉄心Ｆ’
の本体部５２が下方に突出して設けられており、その周
囲には電線が巻回されてコイル５３が形成されている。
吊上電磁石Ｍ’を鋼板５１の上面に設置し、コイル５３
に通電して鉄心Ｆ’を励磁させると、その下端の磁極部
５２ａにＮ極が生じ、鉄心Ｆ’の側板部５４の下端の磁
極部５４ａにＳ極が生じる。鋼板５１は磁性体であるた
め、鉄心Ｆ’の本体部５２の磁極部５２ａのＮ極から、
その側板部５４の磁極部５４ａのＳ極へ磁束５５が発生
し、鋼板５１は吊上電磁石Ｍ’の各磁極部５２ａ，５４
ａに強力に吸着される。この状態で吊上電磁石Ｍ’をワ
イヤー５６で吊上げ、吊上電磁石Ｍ’に吸着された鋼板
５１を搬送する。2. Description of the Related Art Lifting electromagnets are used for transporting long steel materials in steelworks and steel processing plants. Figure 7
A conventional method of transporting the steel plate 51 using the lifting electromagnet M ′ is shown in FIG. An iron core F'is provided at approximately the center of the lifting electromagnet M '.
The main body 52 is provided so as to project downward, and an electric wire is wound around the main body 52 to form a coil 53.
The lifting electromagnet M ′ is installed on the upper surface of the steel plate 51, and the coil 53
When the iron core F'is excited by energizing the magnetic pole 52a, an N pole is generated at the magnetic pole portion 52a at the lower end thereof, and an S pole is generated at the magnetic pole portion 54a at the lower end of the side plate portion 54 of the iron core F '. Since the steel plate 51 is a magnetic substance, from the N pole of the magnetic pole portion 52a of the main body portion 52 of the iron core F ′,
A magnetic flux 55 is generated at the S pole of the magnetic pole portion 54a of the side plate portion 54, and the steel plate 51 is the magnetic pole portions 52a, 54 of the lifting electromagnet M '.
It is strongly adsorbed by a. In this state, the lifting electromagnet M ′ is lifted by the wire 56, and the steel plate 51 attracted to the lifting electromagnet M ′ is conveyed.
【０００３】しかし、鋼材にはさまざまな形状が存在す
る。図８に示されるように、吊上電磁石Ｍ’を用いて鋼
管５７を吊上げる場合、鉄心Ｆ’の両側板部５４の磁極
部５４ａと鋼管５７との間に磁気抵抗となる空間部５８
が生じるため、発生する磁束５９が少なく、その結果吸
着力が弱くて的確な荷役作業ができないという問題があ
った。そのため、さまざまな形状の鋼材に合わせて多種
類の吊上電磁石Ｍ’を用意しておく必要があった。又鋼
材の形状に合わせて吊上電磁石Ｍ’を交換しなければな
らなかった。しかも、鋼材には長尺材が多く、鋼材の吊
上げ、搬送のために吊上電磁石Ｍ’を複数個使用するこ
とが多かった。そのため、複数個の吊上電磁石Ｍ’を交
換する作業には非常に手間がかかっていた。However, there are various shapes of steel materials. As shown in FIG. 8, when the steel pipe 57 is hoisted using the lifting electromagnet M ′, a space 58 that serves as a magnetic resistance between the magnetic pole portion 54a of both side plate portions 54 of the iron core F ′ and the steel pipe 57.
Therefore, there is a problem that the generated magnetic flux 59 is small, and as a result, the attraction force is weak and an accurate cargo handling work cannot be performed. Therefore, it is necessary to prepare various kinds of hoisting electromagnets M'to suit various shapes of steel materials. Also, the lifting electromagnet M ′ had to be replaced according to the shape of the steel material. Moreover, many long steel materials are used, and a plurality of lifting electromagnets M ′ are often used for lifting and transporting steel materials. Therefore, it takes a lot of time to replace the plurality of lifting electromagnets M ′.
【０００４】[0004]
【発明が解決しようとする課題】本発明は、上記したよ
うな従来の吊上電磁石の不具合に鑑み、１台の吊上電磁
石でさまざまな形状の鋼材の吊上げ、搬送が安全かつ確
実にできるようにすることを課題としてなされたもので
ある。SUMMARY OF THE INVENTION The present invention has been made in view of the above problems of the conventional hoisting electromagnets, and enables one hoisting electromagnet to safely and reliably hoist and convey steel materials of various shapes. It was done as an issue.
【０００５】[0005]
【課題を解決するための手段】この課題を解決するため
に本発明が採用した手段は、中央磁極を備えた電磁石本
体の相対向する各側面に一対の厚板状の可動磁極をそれ
ぞれ昇降可能にして取付けたことである。In order to solve this problem, the means adopted by the present invention is capable of moving up and down a pair of thick plate-shaped movable magnetic poles on opposite side surfaces of an electromagnet body having a central magnetic pole. It was installed as.
【０００６】吊上電磁石をワイヤーを用いて吊上げた状
態では、電磁石本体の相対向する側面に取付けられた一
対の可動磁極は、該電磁石本体に対して最下端に位置し
ていて、一対の可動磁極の下端の磁極部は、電磁石本体
に設けられた中央磁極の下端の磁極部よりも下方に位置
している。この状態で、吊上電磁石を被吊上げ物である
鋼材の上面に下降させると、最初に一対の可動磁極の下
端の磁極部が、鋼材の上面又はその近傍に当接して停止
し、更に吊上電磁石を下降させると、中央磁極の下端の
磁極部が鋼材の上面に当接して停止する。この状態で、
コイルに通電して鉄心を励磁させると、中央磁極の下端
の磁極部と各可動磁極の下端の磁極部との間に磁束が生
じて磁路が形成され、これにより鋼材は各磁極部に強力
に吸着されて、吊上げ可能となる。このように、電磁石
本体に対する一対の可動磁極の上下方向に沿った相対位
置は、被吊上げ物である鋼材の上面形状によって定めら
れて、これらの下端の各磁極部は全て鋼材の上面に当接
するので、１台の吊上電磁石により種々の形状の鋼材の
吊上げが可能となる。In a state where the hoisting electromagnet is hoisted by the wire, the pair of movable magnetic poles attached to the opposite side surfaces of the electromagnet main body are located at the lowermost end with respect to the electromagnet main body, and the pair of movable magnetic poles are movable. The magnetic pole portion at the lower end of the magnetic pole is located below the magnetic pole portion at the lower end of the central magnetic pole provided in the electromagnet body. In this state, when the hoisting electromagnet is lowered onto the upper surface of the steel material that is the object to be hoisted, the magnetic pole parts at the lower ends of the pair of movable magnetic poles first come into contact with the upper surface of the steel material or in the vicinity thereof and stop, and the hoisting electromagnet is further suspended. When the electromagnet is lowered, the magnetic pole portion at the lower end of the central magnetic pole comes into contact with the upper surface of the steel material and stops. In this state,
When the coil is energized to excite the iron core, a magnetic flux is generated between the magnetic pole portion at the lower end of the central magnetic pole and the magnetic pole portion at the lower end of each movable magnetic pole, forming a magnetic path, which makes the steel material strong at each magnetic pole portion. It will be adsorbed by and can be lifted. As described above, the relative positions of the pair of movable magnetic poles with respect to the electromagnet main body in the vertical direction are determined by the top surface shape of the steel material that is the object to be lifted, and each magnetic pole portion at the lower end of the pair of magnetic poles contacts the top surface of the steel material. Therefore, it is possible to lift steel materials of various shapes with one lifting electromagnet.
【０００７】[0007]
【発明の実施の形態】以下、実施例を挙げて本発明を更
に詳細に説明する。図１は、本発明に係る吊上電磁石Ｍ
1 を用いて鋼板１１を吊上げた状態を示す正面断面図で
ある。図２は、図１の状態の側面断面図である。図３
は、図１の状態の拡大底面図である。図４は、同じく本
発明に係る吊上電磁石Ｍ1 を用いて鋼管１５を吊上げた
状態を示す正面断面図である。図５は、図４の状態の斜
視図である。図６は、異なる可動磁極１８を取付けた吊
上電磁石Ｍ2 により鋼管１５を吊上げた状態の正面断面
図である。なお、各図中における記号「Ｎ」，「Ｓ」
は、それぞれ電磁石の「Ｎ極」，「Ｓ極」を示してい
る。BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, the present invention will be described in more detail with reference to Examples. FIG. 1 shows a lifting electromagnet M according to the present invention.
It is a front sectional view showing a state in which a steel plate 11 is lifted up using 1 . FIG. 2 is a side sectional view of the state of FIG. FIG.
[Fig. 2] is an enlarged bottom view of the state of Fig. 1. FIG. 4 is a front sectional view showing a state in which the steel pipe 15 is lifted up using the lifting electromagnet M 1 according to the present invention as well. FIG. 5 is a perspective view of the state of FIG. FIG. 6 is a front cross-sectional view showing a state in which the steel pipe 15 is lifted by the lifting electromagnet M 2 to which different movable magnetic poles 18 are attached. The symbols "N" and "S" in each figure
Indicates the “N pole” and the “S pole” of the electromagnet, respectively.
【０００８】最初に、本発明の第１実施例の吊上電磁石
Ｍ1 について説明する。図１ないし図３に示されるよう
に、吊上電磁石Ｍ1 を構成する電磁石本体１０は、鉄心
Ｆにコイル５を巻回したものであって、この鉄心Ｆは、
直方体状の本体部１の上面に方形板状の平板部２が一体
となって設けられた、該平板部２の周縁の裏面に側板部
３，４が一体となって垂直に設けられた形状である。鉄
心Ｆの平板部２の長手方向の両側面部は、それぞれ磁極
部２ａとなっており、該平板部２における各磁極部２ａ
の裏面には、非磁性材料から成る側板部３が垂直となっ
て固着されている。この各側板部３は、後述する可動磁
極８の昇降案内を行う。電磁石本体１０における長手方
向と直交する方向の両側板部４は、それぞれ外方磁極を
構成している。鉄心Ｆの本体部１の周囲には電線が巻回
されてコイル５を形成している。このコイル５に通電し
て鉄心Ｆを励磁させると、その本体部１の下端の磁極部
１ａはＮ極となり、その平板部２の両磁極部２ａ及び両
側板部４の下端の磁極部４ａは、いずれもＳ極となる。
なお、鉄心Ｆの平板部２の上面には、電磁石本体１０を
吊上げるためのブラケット６が設けられている。First, the lifting electromagnet M 1 of the first embodiment of the present invention will be described. As shown in FIGS. 1 to 3, the electromagnet body 10 that constitutes the lifting electromagnet M 1 is obtained by winding a coil 5 around an iron core F.
A rectangular plate-shaped flat plate portion 2 is integrally provided on the upper surface of a rectangular parallelepiped main body portion 1, and side plate portions 3 and 4 are integrally vertically provided on the rear surface of the peripheral edge of the flat plate portion 2. Is. Both side surfaces in the longitudinal direction of the flat plate portion 2 of the iron core F are magnetic pole portions 2a, and the respective magnetic pole portions 2a of the flat plate portion 2 are formed.
The side plate portion 3 made of a non-magnetic material is vertically fixed to the back surface of the. Each of the side plate portions 3 guides up and down movement of the movable magnetic pole 8, which will be described later. Both side plate portions 4 of the electromagnet body 10 in the direction orthogonal to the longitudinal direction form outer magnetic poles. An electric wire is wound around the main body 1 of the iron core F to form a coil 5. When the coil 5 is energized to excite the iron core F, the magnetic pole portion 1a at the lower end of the main body portion 1 becomes an N pole, and the magnetic pole portions 2a of the flat plate portion 2 and the magnetic pole portions 4a at the lower ends of the both side plate portions 4 become. , Are all S poles.
A bracket 6 for suspending the electromagnet body 10 is provided on the upper surface of the flat plate portion 2 of the iron core F.
【０００９】非磁性材料からなる各側板部３の上端部の
外側面には、同じく非磁性材料で形成された支持枠７が
取付けられている。各支持枠７の内方には、長方形状の
空間部７ａが設けられ、各空間部７ａには、それぞれ方
形厚板状をした可動磁極８が嵌装されて配設されてい
る。これにより、中央磁極となる鉄心Ｆの本体部１の両
側にそれぞれ可動磁極８が配設される。可動磁極８の板
厚は、長方形状の空間部７ａの幅よりも僅かに薄くなっ
ているため、各可動磁極８は鉄心Ｆの側板部３に沿って
昇降可能である。又各可動磁極８は、上方へ持ち上げ
て、電磁石本体１０から取り外すことも可能である。各
可動磁極８の上部にはストッパー９が外方に張り出して
設けられている。電磁石本体１０を吊上げると、各可動
磁極８は電磁石本体１０の両側板部３に沿って降下し、
各可動磁極８の上部に設けられたストッパー９が支持枠
７に当接して停止して、各可動磁極８は、電磁石本体１
０に対して最下端に位置する。この状態では、各可動磁
極８の下端の磁極部８ｂは、中央磁極となる鉄心Ｆの本
体部１の下端の磁極部１ａよりも下方に位置している。
ここで、各可動磁極８は、上記した最下端に位置した状
態においても、それぞれの背面部８ａが鉄心Ｆの平板部
２の両磁極部２ａと必ず接触する長さを有している。上
記構成により、当然のことながら、各可動磁極８は、電
磁石本体１０を吊り上げることにより、これと一体とな
って吊り上げられる。A support frame 7 also made of a non-magnetic material is attached to the outer surface of the upper end of each side plate 3 made of a non-magnetic material. A rectangular space 7a is provided inside each of the support frames 7, and a rectangular thick plate-shaped movable magnetic pole 8 is fitted and disposed in each space 7a. As a result, the movable magnetic poles 8 are arranged on both sides of the main body 1 of the iron core F serving as the central magnetic pole. Since the plate thickness of the movable magnetic pole 8 is slightly smaller than the width of the rectangular space 7a, each movable magnetic pole 8 can be moved up and down along the side plate 3 of the iron core F. Further, each movable magnetic pole 8 can be lifted up and removed from the electromagnet main body 10. A stopper 9 is provided above each movable magnetic pole 8 so as to project outward. When the electromagnet body 10 is lifted, each movable magnetic pole 8 descends along the side plate portions 3 of the electromagnet body 10,
A stopper 9 provided above each movable magnetic pole 8 comes into contact with the support frame 7 and stops, so that each movable magnetic pole 8 is connected to the electromagnet body 1
It is located at the bottom of 0. In this state, the magnetic pole portion 8b at the lower end of each movable magnetic pole 8 is located below the magnetic pole portion 1a at the lower end of the main body portion 1 of the iron core F serving as the central magnetic pole.
Here, each movable magnetic pole 8 has a length such that the back surface portion 8a always contacts both magnetic pole portions 2a of the flat plate portion 2 of the iron core F even in the state of being located at the lowermost end. With the above-described configuration, each movable magnetic pole 8 is naturally lifted together with the electromagnet main body 10 by being lifted.
【００１０】本発明に係る吊上電磁石Ｍ1 を用いて、鋼
板１１を吊上げる方法を説明する。図１及び図２に示さ
れるように、吊上電磁石Ｍ1 をワイヤー１２を用いて吊
上げ、徐々に降下させながら鋼板１１の上面に設置する
と、まず各可動磁極８の下端の磁極部８ｂが鋼板１１の
上面に当接して停止し、引き続いて吊上電磁石Ｍ1 を降
下させると、中央磁極となっている鉄心Ｆの本体部１の
下端の磁極部１ａと、外方磁極となっている鉄心Ｆの側
板部４の下端の磁極部４ａとがいずれも鋼板１１の上面
に当接する。この状態でコイル５に通電して鉄心Ｆを励
磁させると、中央磁極となっている鉄心Ｆの本体部１の
下端の磁極部１ａはＮ極となり、鉄心Ｆの平板部２の各
磁極部２ａはＳ極となる。各可動磁極８は磁性体なの
で、それぞれの背面部８ａが鉄心Ｆの平板部２の各磁極
部２ａに引き寄せられ、各磁極部２ａに吸着される。こ
の状態では、各可動磁極８の背面部８ａにおける前記各
磁極部２ａに吸着されている部分がＮ極となり、各可動
磁極８の下端の磁極部８ｂはＳ極となる。その結果、中
央磁極となっている鉄心Ｆの本体部１の下端の磁極部１
ａと、各可動磁極８の下端の磁極部８ｂとの間に磁束１
３が生じて磁路が形成される。同様に、中央磁極となっ
ている鉄心Ｆの本体部１の下端の磁極部１ａと、外方磁
極となっている鉄心Ｆの側板部４の下端の磁極部４ａと
の間に磁束１４が生じて磁路が形成される。そのため鋼
板１１は各磁極部１ａ，４ａ，８ｂに強力に吸着され
る。この状態で吊上電磁石をワイヤー１２で吊上げれ
ば、鋼板１１は電磁石本体Ｍ1 に吸着され、電磁石本体
Ｍ1 と共に吊上げられるため、安全に搬送することがで
きる。A method of hoisting the steel sheet 11 using the hoisting electromagnet M 1 according to the present invention will be described. As shown in FIGS. 1 and 2, when the hoisting electromagnet M 1 is hoisted by using the wire 12 and installed on the upper surface of the steel plate 11 while gradually descending, first, the magnetic pole portion 8b at the lower end of each movable magnetic pole 8 is a steel plate. When the suspension electromagnet M 1 is subsequently lowered by abutting on the upper surface of the core 11, the magnetic pole portion 1a at the lower end of the main body portion 1 of the iron core F which is the central magnetic pole and the iron core which is the outer magnetic pole. The magnetic pole portion 4a at the lower end of the side plate portion 4 of F is in contact with the upper surface of the steel plate 11. When the coil 5 is energized to excite the iron core F in this state, the magnetic pole portion 1a at the lower end of the main body portion 1 of the iron core F, which is the central magnetic pole, becomes an N pole, and each magnetic pole portion 2a of the flat plate portion 2 of the iron core F. Is the south pole. Since each movable magnetic pole 8 is a magnetic material, the back surface portion 8a thereof is attracted to each magnetic pole portion 2a of the flat plate portion 2 of the iron core F and attracted to each magnetic pole portion 2a. In this state, the portion of the back surface portion 8a of each movable magnetic pole 8 that is attracted to each magnetic pole portion 2a becomes the N pole, and the magnetic pole portion 8b at the lower end of each movable magnetic pole 8 becomes the S pole. As a result, the magnetic pole portion 1 at the lower end of the main body portion 1 of the iron core F which is the central magnetic pole
the magnetic flux 1 between a and the magnetic pole portion 8b at the lower end of each movable magnetic pole 8.
3 occurs and a magnetic path is formed. Similarly, a magnetic flux 14 is generated between the magnetic pole portion 1a at the lower end of the main body portion 1 of the iron core F which is the central magnetic pole and the magnetic pole portion 4a at the lower end of the side plate portion 4 of the iron core F which is the outer magnetic pole. A magnetic path is formed. Therefore, the steel plate 11 is strongly attracted to the magnetic pole portions 1a, 4a, 8b. If the hoisting electromagnet is hoisted by the wire 12 in this state, the steel plate 11 is attracted to the electromagnet body M 1 and hoisted together with the electromagnet body M 1 , so that it can be safely transported.
【００１１】次に、本発明に係る吊上電磁石Ｍ1 を用い
て鋼管１５を吊上げる方法を説明する。図４及び図５に
示されるように、吊上電磁石Ｍ1 を徐々に降下させて鋼
管１５の上面に設置すると、各可動磁極８の磁極部８ｂ
が鋼管１５の最上部の両側に当接して停止し、引き続い
て吊上電磁石Ｍ1 を降下させると、中央磁極となってい
る鉄心Ｆの本体部１の下端の磁極部１ａが鋼管１５の最
上部に当接して停止する。この状態でコイル５に通電し
て鉄心Ｆを励磁させると、鋼板１１の場合と同様に、中
央磁極である鉄心Ｆの本体部１の下端の磁極部１ａはＮ
極となり、各可動磁極８の下端の磁極部８ｂはＳ極とな
る。その結果、鉄心Ｆの本体部１の下端の磁極部１ａと
各可動磁極８の下端の磁極部８ｂとの間に磁束１７が生
じて磁路が形成される。この状態では、鉄心Ｆの本体部
１の下端の磁極部１ａと各可動磁極８の下端の磁極部８
ｂとの間には、磁気抵抗の大きな空間部が生じていない
ため、上記磁路の磁束密度が高まって、鋼管１５は各磁
極部１ａ，８ｂに強力に吸着される。この状態で吊上電
磁石をワイヤー１２で吊上げれば、鋼管１５は吊上電磁
石Ｍ1 に吸着されて、これと共に吊上げられるため、安
全に搬送することができる。Next, a method of hoisting the steel pipe 15 using the hoisting electromagnet M 1 according to the present invention will be described. As shown in FIGS. 4 and 5, when the lifting electromagnet M 1 is gradually lowered and installed on the upper surface of the steel pipe 15, the magnetic pole portion 8b of each movable magnetic pole 8 is provided.
Is abutted on both sides of the uppermost part of the steel pipe 15 and stopped, and when the suspension electromagnet M 1 is subsequently lowered, the magnetic pole part 1a at the lower end of the main body part 1 of the iron core F, which is the central magnetic pole, becomes the uppermost part of the steel pipe 15. Abut on the top and stop. When the coil 5 is energized to excite the iron core F in this state, the magnetic pole portion 1a at the lower end of the main body portion 1 of the iron core F, which is the central magnetic pole, is N as in the case of the steel plate 11.
The magnetic pole portion 8b at the lower end of each movable magnetic pole 8 becomes the S pole. As a result, a magnetic flux 17 is generated between the magnetic pole portion 1a at the lower end of the main body 1 of the iron core F and the magnetic pole portion 8b at the lower end of each movable magnetic pole 8 to form a magnetic path. In this state, the magnetic pole portion 1a at the lower end of the main body 1 of the iron core F and the magnetic pole portion 8 at the lower end of each movable magnetic pole 8 are arranged.
Since a space having a large magnetic resistance is not formed between the steel pipe 15 and b, the magnetic flux density of the magnetic path is increased, and the steel pipe 15 is strongly attracted to the magnetic poles 1a and 8b. If the hoisting electromagnet is hoisted by the wire 12 in this state, the steel pipe 15 is attracted to the hoisting electromagnet M 1 and hoisted together with it, so that the steel tube 15 can be safely transported.
【００１２】次に、本発明の第２実施例の吊上電磁石Ｍ
2 について説明する。上記したように、鋼板１１を吊上
げる場合には、その下端の磁極部８ｂが水平面状となっ
た可動磁極８を用いればよい。しかし、鋼管１５を吊上
げる場合、その磁極部８ｂが水平面状となっている可動
磁極８を用いると、この磁極部８ｂと鋼管１５との接触
面積が小さくなり、吊上げられる鋼管１５の種類や形状
が限定されてしまう。そのため図６に示されるように、
各可動磁極１８の下端の磁極部１８ａを鋼管１５の形状
に合わせて傾斜面状にした可動磁極１８を予め用意して
おく。それらの可動磁極１８を、その傾斜した磁極部１
８ａを内側に相対向させて配設した状態で鋼管１５に当
接させれば、その接触面積が大きくなって、磁束１９の
密度が高まって、より大きな力で吸着される。そのた
め、より大きな力で鋼管１５を吊上げることができ、か
つ安全に搬送することができる。更にこれらの可動磁極
１８は交換可能であるため、被吊上げ物のさまざまな形
状に対してきめ細かく用意しておくことができる。各可
動磁極１８に対して電磁石本体１０は共通なので、それ
ぞれの可動磁極１８だけを用意しておけばよい。Next, the lifting electromagnet M of the second embodiment of the present invention.
2 will be described. As described above, when the steel plate 11 is lifted up, the movable magnetic pole 8 having the horizontal magnetic pole portion 8b at the lower end thereof may be used. However, in the case of hoisting the steel pipe 15, if the movable magnetic pole 8 whose magnetic pole portion 8b is horizontal is used, the contact area between the magnetic pole portion 8b and the steel pipe 15 becomes small, and the type and shape of the steel pipe 15 to be hoisted. Will be limited. Therefore, as shown in FIG.
The movable magnetic pole 18 in which the magnetic pole portion 18a at the lower end of each movable magnetic pole 18 has an inclined surface shape according to the shape of the steel pipe 15 is prepared in advance. The movable magnetic poles 18 are replaced by the inclined magnetic pole portion 1
When the steel pipes 15 are brought into contact with the steel pipes 8a so as to face each other inside, the contact area is increased, the density of the magnetic flux 19 is increased, and the magnetic flux 19 is attracted with a larger force. Therefore, the steel pipe 15 can be lifted with a larger force and can be safely transported. Furthermore, since these movable magnetic poles 18 are replaceable, it is possible to prepare them in detail for various shapes of the object to be lifted. Since the electromagnet body 10 is common to the respective movable magnetic poles 18, only the respective movable magnetic poles 18 need be prepared.
【００１３】[0013]
【発明の効果】本発明に係る吊上電磁石は、中央磁極を
備えた電磁石本体の相対向する各側面に一対の厚板状の
可動磁極がそれぞれ昇降可能に取付けられ、電磁石本体
に対する一対の可動磁極の上下方向に沿った相対位置
は、被吊上げ物である鋼材の上面形状によって定められ
て、これらの下端の各磁極部は全て鋼材の上面に当接す
る構成であるため、１台の吊上電磁石でさまざまな形状
の鋼材を強力な力で吊上げ、安全に搬送することが可能
である。更に、磁極部の形状の異なる数種類の可動磁極
を用意しておいて、これらを交換することによって、さ
まざまな形状の鋼材をより安全かつ確実に吊上げて搬送
することができる。In the hoisting electromagnet according to the present invention, a pair of thick plate-shaped movable magnetic poles are mounted so as to be able to move up and down on opposite side surfaces of an electromagnet main body having a central magnetic pole, and a pair of movable magnetic poles with respect to the electromagnet main body. The relative position of the magnetic poles in the vertical direction is determined by the shape of the top surface of the steel material that is the object to be hoisted, and the magnetic pole portions at the lower ends of these are all in contact with the top surface of the steel material. It is possible to safely transport steel materials of various shapes by using electromagnets. Furthermore, by preparing several types of movable magnetic poles having different magnetic pole portions and exchanging them, steel materials of various shapes can be safely and reliably lifted and transported.
【図１】本発明の第１実施例の吊上電磁石Ｍ1 を用いて
鋼板１１を吊上げた状態を示す正面断面図である。FIG. 1 is a front cross-sectional view showing a state in which a steel plate 11 is hoisted using a hoisting electromagnet M 1 according to a first embodiment of the present invention.
【図２】図１の状態の側面断面図である。FIG. 2 is a side sectional view of the state of FIG.
【図３】図１の状態の拡大底面図である。FIG. 3 is an enlarged bottom view of the state shown in FIG.
【図４】本発明に係る吊上電磁石Ｍ1 を用いて鋼管１５
を吊上げた状態を示す正面断面図である。FIG. 4 shows a steel pipe 15 using the lifting electromagnet M 1 according to the present invention.
It is a front sectional view showing a state in which the is lifted.
【図５】図４の状態の斜視図である。5 is a perspective view of the state of FIG. 4. FIG.
【図６】本発明の第２実施例の吊上電磁石Ｍ2 を用いて
鋼管１５を吊上げた状態を示す正面断面図である。FIG. 6 is a front cross-sectional view showing a state where the steel pipe 15 is hoisted by using the hoisting electromagnet M 2 of the second embodiment of the present invention.
【図７】従来の吊上電磁石Ｍ’を用いて鋼板５１を吊上
げた状態を示す図である。FIG. 7 is a diagram showing a state in which a steel plate 51 is hung using a conventional hoisting electromagnet M ′.
【図８】同じく従来の吊上電磁石Ｍ’を用いて鋼管５７
を吊上げた状態を示す図である。FIG. 8 is a steel pipe 57 using a conventional lifting electromagnet M ′.
It is a figure which shows the state which hung.
Ｍ1,Ｍ2 ：電磁石本体 Ｆ：鉄心 １：鉄心の本体部（中央磁極） ４：鉄心の側板部（外方磁極） ８，１８：可動磁極 １０：電磁石本体M 1, M 2 : Electromagnet main body F: Iron core 1: Iron core body (central magnetic pole) 4: Iron core side plate (outer magnetic pole) 8, 18: Movable magnetic pole 10: Electromagnet main body
Claims (3)
る各側面に一対の厚板状の可動磁極がそれぞれ昇降可能
に取付けられていることを特徴とする吊上電磁石。1. A hoisting electromagnet, wherein a pair of thick plate-shaped movable magnetic poles are attached so as to be able to move up and down respectively on opposite side surfaces of an electromagnet main body having a central magnetic pole.
磁石本体における一対の可動磁極が相対向して取付けら
れている各側板部と直交する各側板部が外方磁極となっ
ていることを特徴とする請求項１に記載の吊上電磁石。2. The electromagnet body has a rectangular parallelepiped shape, and the side plate portions orthogonal to the side plate portions to which the pair of movable magnetic poles of the electromagnet body are attached so as to face each other are outer magnetic poles. The hoisting electromagnet according to claim 1, wherein:
特徴とする請求項１又は２に記載の吊上電磁石。3. The lifting electromagnet according to claim 1, wherein the movable magnetic pole is replaceable.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP25701495A JPH0977450A (en) | 1995-09-08 | 1995-09-08 | Lifting electromagnet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP25701495A JPH0977450A (en) | 1995-09-08 | 1995-09-08 | Lifting electromagnet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0977450A true JPH0977450A (en) | 1997-03-25 |
Family
ID=17300539
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP25701495A Pending JPH0977450A (en) | 1995-09-08 | 1995-09-08 | Lifting electromagnet |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0977450A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101032723B1 (en) * | 2008-05-29 | 2011-05-09 | 김상현 | magnetic lifter using a hybrid magnet |
| US20120153650A1 (en) * | 2009-09-01 | 2012-06-21 | Sgm Gantry S.P.A. | Electromagnetic lifter for moving horizontal-axis coils and the like |
-
1995
- 1995-09-08 JP JP25701495A patent/JPH0977450A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101032723B1 (en) * | 2008-05-29 | 2011-05-09 | 김상현 | magnetic lifter using a hybrid magnet |
| US20120153650A1 (en) * | 2009-09-01 | 2012-06-21 | Sgm Gantry S.P.A. | Electromagnetic lifter for moving horizontal-axis coils and the like |
| US8919839B2 (en) * | 2009-09-01 | 2014-12-30 | Sgm Gantry S.P.A. | Electromagnetic lifter for moving horizontal-axis coils and the like |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP6787484B2 (en) | Mounting magnets for lifting magnets, lifting magnets with magnetic poles for lifting steel materials, steel material transport methods, and steel plate manufacturing methods | |
| JPH0977450A (en) | Lifting electromagnet | |
| JPH053508Y2 (en) | ||
| JPS5895043A (en) | Conveying device for sheet steel | |
| JP3634462B2 (en) | Automatic operation method for lifting a predetermined number of steel materials by crane | |
| JP3338953B2 (en) | Lifter magnet | |
| JP4684623B2 (en) | Lifting electromagnet device | |
| JP4980683B2 (en) | Lifting electromagnet device | |
| JP7287479B2 (en) | Lifting magnet, lifting device for steel plate, and method for conveying steel plate | |
| JP2898148B2 (en) | Lifting electromagnet device | |
| JP2005082276A (en) | Automatic lifting magnet crane device | |
| JP3831038B2 (en) | Electromagnetic magnet | |
| JPH10157965A (en) | Rifmag crane | |
| JP2539926B2 (en) | Steel plate hanging number selection control method | |
| JP2961459B2 (en) | Lifting magnet for work transfer | |
| JP2000289997A (en) | Device for magnetic attraction conveyance | |
| JPS63134492A (en) | Movable yoke type lifting magnet | |
| JP2559988Y2 (en) | Hanging tool centering device | |
| JP2004256211A (en) | Lifter magnet | |
| JPS6011015Y2 (en) | Steel plate lifting equipment | |
| JP2700686B2 (en) | Magnetic levitation type transfer equipment | |
| JP2002060171A (en) | Magnet hanger for carrying shaped steel | |
| JP2553519Y2 (en) | Suspension failure detection device in long plate material transfer system | |
| JP3440370B2 (en) | Lifter magnet | |
| JPH0738066U (en) | Large diameter steel pipe lifting device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A977 | Report on retrieval |
Free format text: JAPANESE INTERMEDIATE CODE: A971007 Effective date: 20040224 |
|
| A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20040302 |
|
| A02 | Decision of refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A02 Effective date: 20040720 |