KR20020054411A - Centering apparatus of magnetic lifter for strip coil - Google Patents

Centering apparatus of magnetic lifter for strip coil Download PDF

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Publication number
KR20020054411A
KR20020054411A KR1020000083479A KR20000083479A KR20020054411A KR 20020054411 A KR20020054411 A KR 20020054411A KR 1020000083479 A KR1020000083479 A KR 1020000083479A KR 20000083479 A KR20000083479 A KR 20000083479A KR 20020054411 A KR20020054411 A KR 20020054411A
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KR
South Korea
Prior art keywords
coil
magnet
guider
center
drive shaft
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KR1020000083479A
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Korean (ko)
Inventor
최병익
이광호
Original Assignee
이구택
주식회사 포스코
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Priority to KR1020000083479A priority Critical patent/KR20020054411A/en
Publication of KR20020054411A publication Critical patent/KR20020054411A/en

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C1/00—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles
    • B66C1/10—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles by mechanical means
    • B66C1/42—Gripping members engaging only the external or internal surfaces of the articles
    • B66C1/44—Gripping members engaging only the external or internal surfaces of the articles and applying frictional forces
    • B66C1/54—Internally-expanding grippers for handling hollow articles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C1/00—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles
    • B66C1/04—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles by magnetic means
    • B66C1/06—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles by magnetic means electromagnetic
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C1/00—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles
    • B66C1/10—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles by mechanical means
    • B66C1/62—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles by mechanical means comprising article-engaging members of a shape complementary to that of the articles to be handled
    • B66C1/66—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles by mechanical means comprising article-engaging members of a shape complementary to that of the articles to be handled for engaging holes, recesses, or abutments on articles specially provided for facilitating handling thereof

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Winding, Rewinding, Material Storage Devices (AREA)
  • Load-Engaging Elements For Cranes (AREA)

Abstract

PURPOSE: A centering device of a magnetic lifter for a steel coil is provided to stick a coil in the center of a magnet by a center correct device without a signal of an operator. CONSTITUTION: A driving shaft(20) is vertically installed in the center of a body(10) with a magnet(4). A bevel gear(22) is stuck to the driving shaft. A bevel gear(31) with two screw shafts(30) is geared with the bevel gear(22). Guiders(40) are installed in each screw shaft. A sensor(50) is installed in the guider(40) to limit its operating range. A coil is exactly wired and corrected its twisting by the guider. Thereby, the delay of operating time is prevented.

Description

강판코일용 마그네틱 리프터의 센터링장치{Centering apparatus of magnetic lifter for strip coil}Centering apparatus of magnetic lifter for steel coils

본 발명은 강판코일용 마그네틱 리프터의 센터링장치, 보다 상세하게는 롤 형으로 권취된 강판코일을 마크네틱 리프터를 이용하여 이송 및 상자 소둔로에 장입시킬 때 리프터의 중심부에 코일을 정확히 흡착되게 유도하여 이송도중 부착력의 취약으로 인하여 코일의 추락 또는 장입불량을 미연에 방지할 수 있는 강판코일용 마그네틱 리프터의 센터링장치에 관한 것이다.The present invention, when the centering device of the magnetic lifter for steel sheet coil, more specifically, the steel sheet coil wound in a roll-type to the transfer and the box annealing furnace using the magnetic lifter to induce the coil to be correctly adsorbed to the center of the lifter The present invention relates to a centering device for a magnetic lifter for a steel coil, which can prevent a coil from falling or a charging failure due to a weak adhesive force during transportation.

도 1a는 종래의 마크네틱을 이용한 코일 리프터의 코일이 편심된 상태를 나타낸 정면구성도로서, 크레인 운전자가 운전실에 비치된 모니터에서 권상할 코일을 확인하여 크레인의 훅(2)에 고리(3)와 체인(3')으로 연결된 마그네트(4)를 코일(1)의 상부면을 향해 하강시켜 코일에 안착되기 직전에 일단 정지시킨 후 그 중심에 정확하게 되어 있다고 판단되면, 상기 마그네트(4)를 더욱 권하하여 코일(1)의 상부면에 안착되게 한다.FIG. 1A is a front configuration diagram illustrating a state in which coils of a conventional coil lifter using an eccentric coil are eccentric, and a crane driver checks a coil to be hoisted on a monitor provided in a cab and hooks the hook 3 to the hook 2 of the crane. When the magnet 4 connected to the chain 3 'is lowered toward the upper surface of the coil 1 and stopped just before being seated on the coil, and is determined to be correct at the center thereof, the magnet 4 is further moved. It is recommended to be seated on the upper surface of the coil 1.

이어서, 운전자는 마그네트에 전원을 투입하여 마그네트(4)에 코일(1)을 붙여 권상시키게 되어 권상된 마그네트와 코일의 센터링이 심하게 맞지 않는 경우(도 1b참조)를 제외하고는 그대로 이송하여 적입 베이스(5)에 있는 작업자의 유도를 받아 안착시키게 된다.Subsequently, the driver turns on the magnet by applying power to the magnet 4 to raise the magnet 4, and transfers it as it is, except for the case where the hoisted magnet and the coil are not centered severely (see FIG. 1B). Under the guidance of the operator in (5) it will be seated.

상기 마그네트(4)에 코일(1)을 붙이는 마그네팅과정에서 코일(1) 폭이 높아작업자의 시야를 가려 센터링 유도신호를 못한채 크레인 운전자 단독으로 확인하면서 작업하다 센터링이 극심하게 불량일 때는 마그네트(4)의 전원을 오프하여 이를 권상시켜 코일을 센터링되게 한 다음 다시 마그네팅을 하게 됨으로써 작업 시간이 많이 걸리게 되었고, 센터가 불량한 마그네팅 상태에서 이송시킬 경우 마그네트(4)와 코일과의 접촉면이 축소되어 마그네트 흡착력 저하로 이송중 코일이 마그네트에서 떨어질 위험이 있었다.In the magnetizing process of attaching the coil 1 to the magnet 4, the width of the coil 1 is high, obscuring the operator's field of view, and working while checking the crane driver alone without the centering guidance signal. By turning off the power of 4) and winding it up, the coil is centered and then magnetized again, which takes a lot of work time, and the contact surface between the magnet 4 and the coil is reduced when the center is transported in a poor magnetting state. There was a risk of the coil falling from the magnet during transfer due to the deterioration of the magnet attraction force.

적입 베이스(5)에 코일이 이송되어 오면 작업자가 여러번 센터링 유도신호를 하여 안착시키게 되는데, 이때 도 1c에서와 같이 1단으로 적재된 코일(1-a)은 작업자의 시야를 가리지 않으므로 센터링이 어느 정도 가능하나, 2단 코일(1-b)과 3단 코일(1-c)의 상부로 적치 할수록 하부에 있는 작업자의 시야에서 벗어나 센터링의 유도가 정확하지 않게 되는 문제점이 있었다.When the coil is transported to the loading base 5, the operator makes a centering signal several times to settle the seat. At this time, as shown in FIG. 1C, the coil 1-a loaded in the first stage does not obstruct the field of view of the worker. As much as possible, the second stage coil (1-b) and the three-stage coil (1-c) in the upper portion of the operator has a problem that the induction of the centering is out of sight of the operator at the bottom.

또한, 상자 소둔로에 센터가 불량한 상태로 적치된 코일을 열처리할 때 상자 소둔로 내부의 분위기가스 와 상자소둔 코일과의 일정한 접촉면이 형성되지 못하여 생산된 상자소둔재의 스트립 부분 부분이 분위기가스 산화로 인하여 탄소 가루가 침투되면서 오염(탈지불량)과 곱쇠 및 스트커 등 상자소둔 공정 결함이 유발되었음은 물론, 불안전한 마그네팅 상태에서 작업자가 접근하여 신호하는 등 수작업 개입으로 안전사고 위험과 설비사고 발생등의 문제점이 있다.In addition, when heat-treating a coil loaded with a poor center in a box annealing furnace, a constant contact surface between the atmosphere gas inside the box annealing furnace and the box annealing coil is not formed, so that the strip portion of the box annealing material produced is oxidized to the atmosphere gas. As a result of the infiltration of carbon powder, contamination (degreasing defects) and defects in box annealing processes such as gobs and stackers were caused, as well as safety accidents and equipment accidents caused by manual intervention such as workers approaching and signaling in unsafe magnetization. There is a problem such as occurrence.

본 발명은 상기와 같은 종래의 문제점을 해결하기 위해 안출한 것으로, 그 목적은 상자소둔 생산공정에서 마그네트 리프터를 이용하여 코일을 적입 및 취출시킬 때크레인 운전자가 작업자의 신호에 의존하지 않고 센터 교정장치에 의해 마그네트의 중심부에 코일을 부착시킬 수 있는 강판코일용 마그네틱 리프터의 센터링장치를 제공하는 것이다.The present invention has been made to solve the above-mentioned conventional problems, the object is that the crane driver does not rely on the operator's signal when loading and taking out the coil by using the magnet lifter in the box annealing production process center calibration device It is to provide a centering device for the magnetic lifter for steel sheet coil which can attach a coil to the center of the magnet.

이러한 목적을 달성하기 위한 본 발명은, 크레인에 걸을 수 있도록 저면에 마그네트를 구비한 몸체의 중심부에 모터에 의해 공회전되는 구동축이 수직으로 설치되고, 상기 구동축에는 회전력을 직각으로 전환시키는 베벨기어가 접합되며, 상기 베벨기어에는 수직으로 설치된 구동축에 대해 서로 상반된 위치에서 직교되게 설치한 적어도 2개의 스크류축의 베벨기어가 이맞물림되어 있고, 상기 각 스크류축에는 그 회전방향에 따라 구동축을 기점으로 내외향으로 좁혀지고 펼쳐지면서 몸체의 마그네트에 부착되는 과정에 코일의 내경부로 삽입되는 가이더가 설치됨으로써, 간단한 조작으로 코일을 센터링하여 코일의 추락 및 안전사고 등을 방지하고 작업자의 안전관리와 냉연제품의 품질을 향상시킴을 특징으로 한다.In order to achieve the above object, the present invention includes a drive shaft vertically installed by a motor in a central portion of a body having a magnet on its bottom so as to be able to walk on a crane, and a bevel gear for converting a rotational force at right angles to the drive shaft. Bevel gears are meshed with bevel gears of at least two screw shafts orthogonally installed at mutually opposite positions with respect to vertically installed drive shafts, and narrowed inwards and outwards from the respective screw shafts based on the direction of rotation thereof. The guider inserted into the inner diameter of the coil is installed in the process of being attached to the magnet of the body as it is unfolded and unfolded, thereby centering the coil with a simple operation to prevent the fall of the coil and safety accidents, and to control the safety of workers and the quality of cold rolled products. It is characterized by improvement.

도 1a는 종래의 마크네틱을 이용한 코일 리프터의 코일 이송상태를 나타낸 정면구성도,Figure 1a is a front configuration diagram showing a coil transfer state of the conventional coil lifter using the magnetic;

도 1b 및 1c는 상기 종래의 코일이 편심 부착된 상태와 그 적치불량을 나타낸 평면 및 정면구성도,1B and 1C are planar and front configuration views showing a state in which the conventional coil is attached eccentrically and its misplacement;

도 2는 본 발명의 코일 센터링 교정장치의 일부를 절취한 정면구성도,2 is a front configuration view of a part of the coil centering correction device of the present invention;

도 3은 본 발명의 마그네틱 리프터의 중싱부에 토일이 부착된 상태를 예시한 평면구성도이며,3 is a planar view illustrating a state in which a toil is attached to a heavy portion of the magnetic lifter of the present invention.

도 4a 내지 4c는 본 발명의 코일 센터링 교정장치의 작업상태를 각각 예시한 정면구성도이다.Figures 4a to 4c is a front configuration diagram illustrating each working state of the coil centering calibration device of the present invention.

< 도면의 주요부분에 대한 부호의 설명 ><Description of Symbols for Major Parts of Drawings>

1 : 코일2 : 훅1: coil 2: hook

3 : 고리4 : 마그네트3: hook 4: magnet

10 : 몸체20 : 구동축10 body 20 drive shaft

21 : 모터22, 31 : 베벨기어21: Motor 22, 31: Bevel Gear

30 : 스크류축40 : 가이더30 screw shaft 40 guider

41 : 안내봉50 : 센서41: guide bar 50: sensor

이하, 본 발명의 강판코일용 마그네틱 리프터의 센터링장치를 첨부도면을 참조하여 설명하면 다음과 같다.Hereinafter, with reference to the accompanying drawings, the centering device of the magnetic lifter for steel sheet coil of the present invention will be described.

도 2는 본 발명의 코일 센터링 교정장치의 일부를 절취한 정면구성도이고, 도 3은 본 발명의 마그네틱 리프터의 중싱부에 토일이 부착된 상태를 예시한 평면구성도이며, 도 4a 내지 4c는 본 발명의 코일 센터링 교정장치의 작업상태를 각각 예시한 정면구성도이다.2 is a front configuration diagram of a part of the coil centering calibration device of the present invention, and FIG. 3 is a plan view illustrating a state in which a toil is attached to a heavy portion of the magnetic lifter of the present invention, and FIGS. 4A to 4C are views. It is a front structure diagram which respectively illustrates the working state of the coil centering correction apparatus of this invention.

크레인의 훅(2)에 걸을 수 있도록 상부에 고리(3)와 체인(3')으로 연결되어있되 저면에 마그네트(4)를 구비한 몸체(10)의 중심부에 모터(21)에 의해 공회전되는 구동축(20)이 수직으로 설치되고, 이 구동축에는 회전력을 직각으로 전환시키는 베벨기어(22)가 접합되어 있다.It is connected to the hook (3) of the crane by the hook (3) and the chain (3 ') at the top, but is idling by the motor (21) in the center of the body (10) having a magnet (4) at the bottom The drive shaft 20 is provided vertically, and the bevel gear 22 which switches a rotational force at right angles is joined to this drive shaft.

상기 베벨기어(22)에는 수직으로 설치된 구동축(20)에 대해 서로 상반된 위치에서 직교되게 설치한 적어도 2개의 스크류축(30)의 베벨기어(31)가 이맞물림되고, 상기 각 스크류축(30)에는 그 회전방향에 따라 구동축(20)을 기점으로 내외향으로 좁혀지고 펼쳐지면서 몸체(10)의 마그네트(4)에 부착되는 코일(1)의 내경부로 삽입되는 가이더(40)가 설치되어 있다.The bevel gears 22 are meshed with bevel gears 31 of at least two screw shafts 30 that are orthogonally installed at positions opposite to each other with respect to the drive shaft 20 installed vertically. The guider 40 is inserted into the inner diameter portion of the coil 1 attached to the magnet 4 of the body 10 while being narrowed and extended inward and outward from the driving shaft 20 in accordance with the rotational direction thereof.

상기 가이더(40)는 모터(21)의 구동력이 구동축(20)과 베벨기어(22)(31)를 통해 스크류축(30)에 전달됨으로써 동작이 되며, 이때 가이더의 동작을 원활히 하도록 안내봉(41)을 설치하는 것이 바람직 하다.The guider 40 is operated by the driving force of the motor 21 is transmitted to the screw shaft 30 through the drive shaft 20 and the bevel gears 22 and 31, the guide rod (10) to smooth the operation of the guider ( It is desirable to install 41).

따라서, 상기와 같은 본 발명은 트레킹 정보에 의하여 마그네팅할 코일(1)의 위치를 수신한 후 크레인운전자가 크레인을 이동시켜 코일의 상부에 위치시킨 후 서서히 몸체(10)를 권하하여 코일에 안착되기 전에 일단 정지한 상태에서 코일의 권취상태 및 밴딩상태 등응 확인하여 안전하다고 판단되면 더욱 권하시켜 완전히 코일면에 안착시킨다.Therefore, in the present invention as described above, after receiving the position of the coil 1 to be magnetized by the trekking information, the crane driver moves the crane to position the upper portion of the coil, and then slowly recommends the body 10 to be seated on the coil. Once it is stopped, check the coiling state and the bending state of the coil in the stopped state, and if it is considered safe, further lower it and completely rest on the coil surface.

이때, 몸체(10)의 저면에 형성된 마그네트(4) 보다 더욱 돌출되어 있는 가이더(40)는 그 중심부위로 좁혀진 상태이므로 고일(1)의 내경부로 원활히 삽입된다.At this time, the guider 40 protruding more than the magnet 4 formed on the bottom surface of the body 10 is smoothly inserted into the inner diameter of the goil 1 because it is in a narrowed state.

상기 마그네팅 동작이 완료된 후 모터(21)에 전원 스윗치를 온하면 모터가 정방향으로 회전하면서 구동축(20)과 베벨기어(22)(31)를 통해 스크류축(30)을 정회전 시키면서 몸체(10)의 저면 중심부에서 좁혀진 상태에 있던 가이더(40)가 외향으로 벌어지게 된다.When the power switch is turned on to the motor 21 after the magnetizing operation is completed, the motor 10 rotates in the forward direction while rotating the screw shaft 30 forward through the drive shaft 20 and the bevel gears 22 and 31. The guider 40, which was in a narrowed state at the center of the bottom of the bottom, opens outward.

즉, 코일의 내경부에서 좁혀진 상태로 있던 2개 또는 다수의 가이더(40)가 스크류축(30)의 정회전에 의해 몸체(10)의 저면중심으로부터 외향으로 균일하게 벌어지게 되면서 마그네트(4)의 중심으로부터 치우쳐진 상태로 부착된 코일(1)을 밀어 내면서 도 3에서와 같이 중심점에 일치되게 하며, 상기 가이더(40)의 센터링 동작은 그 일측에 설치된 센서(50)에 의해 제어된 한다.That is, the two or more guiders 40 in the state of being narrowed at the inner diameter of the coil are uniformly spread outwardly from the bottom center of the body 10 by the forward rotation of the screw shaft 30 of the magnet 4. Pushing the coil (1) attached to the biased state from the center to match the center point as shown in Figure 3, the centering operation of the guider 40 is controlled by a sensor 50 installed on one side thereof.

상기와 같이 코일을 센터링 한 상태에서 이송 및 적치작업을 하므로 마그네트와의 부착력 저하를 방지하여 안전하게 운반작업이 가능하며, 상기 코일을 소둔로 등의 베이스에 안착한 후 마그네트(4) 전원을 오프하여 코일을 분리하고, 이어서 상기 모터(21)에 전원 온하여 구동축(20) 및 스크류축(30)을 역회전시켜 상기 가이더(40)를 다시 내향으로 좁혀지도록 한상태에서 몸체(10)를 권상시키게 되는 것이다.As the transfer and stacking work is performed in the center of the coil as described above, the transport force can be safely carried out by preventing the attachment force with the magnet, and the coil (4) is turned off after the coil is seated on the base of the annealing furnace. Then, the power is turned on to the motor 21, and the drive shaft 20 and the screw shaft 30 are rotated in reverse to lift the body 10 in a state in which the guider 40 is narrowed inward again. .

이와 같은 본 발명의 강판코일용 마그네틱 리프터의 센터링장치는 코일의 내경으로 삽입된 가이더의 교정동작으로 코일을 정확하게 센터링하여 권상하고 베이스에서 코일의 흔들림을 교정하므로서, 센터 불량으로 센터링 작업을 여러번 시도할 때 발생되던 에지부의 손상과 마그네트의 부착력 감소로 코일이 추락되는 위험과 상자 소둔을 위하여 베이스에 코일을 안착시킬 때 작업시간 지연 됨을 방지할 수 있다.The centering device of the magnetic lifter for a steel coil according to the present invention is to center the coil by the correcting operation of the guider inserted into the inner diameter of the coil so that the coil is wound up and the shaking of the coil is corrected at the base. It can prevent the delay of working time when the coil is placed on the base for the risk of falling of the coil and the box annealing due to the damage of the edge part and the reduced adhesion of the magnet.

또한 마그네팅 동작시 여러번의 센터링 동작을 리프터 자체에서 스스로 해결하고, 코일의 적치 센터링이 불량한 상태에서 소둔 작업시 발생하는 탈지 불량과 곱쇠 및 스티커 등의 결함을 방지하여 품질을 향상시킬 수 있는 등의 효과가 있다.In addition, it can solve several centering operations by the lifter itself during magnetting operation, and improve quality by preventing defects such as degreasing defects, gops, and stickers that occur during annealing work in the state of poor centering of coils. It works.

Claims (1)

크레인의 훅(2)에 걸을 수 있도록 상부에 고리(3)와 체인(3')으로 연결되어 있되 저면에 마그네트(4)를 구비한 몸체(10)의 중심부에 모터(21)에 의해 공회전되는 구동축(20)이 수직으로 설치되고, 상기 구동축에는 회전력을 직각으로 전환시키는 베벨기어(22)가 접합되며, 상기 베벨기어(22)에는 수직으로 설치된 구동축(20)에 대해 서로 상반된 위치에서 직교되게 설치한 적어도 2개의 스크류축(30)의 베벨기어(31)가 이맞물림되어 있고, 상기 각 스크류축(30)에는 그 회전방향에 따라 구동축(20)을 기점으로 내외향으로 좁혀지고 펼쳐지면서 몸체(10)의 마그네트(4)에 부착되는 과정에 코일(1)의 내경부로 삽입되는 가이더(40)가 설치되어 있으며, 상기 가이더(40)는 모터(21)의 구동력이 구동축(20)과 베벨기어(22)(31)를 통해 스크류축(30)에 의해 동작되는 가이더(40)의 일측에는 그 동작범위를 제한하는 센서(50)가 설치된 구성을 특징으로 하는 강판코일용 마그네틱 리프터의 센터링장치.It is connected to the hook (3) of the crane by the hook (3) and the chain (3 ') at the top, but is idle by the motor (21) in the center of the body (10) having a magnet (4) on the bottom The drive shaft 20 is installed vertically, the bevel gear 22 for converting the rotational force to the right angle is bonded to the drive shaft, the bevel gear 22 is perpendicular to each other in a position opposite to each other with respect to the drive shaft 20 installed vertically. Bevel gears 31 of at least two screw shafts 30 installed are engaged with each other, and each screw shaft 30 is narrowed inwards and outwards from the driving shaft 20 in accordance with the rotational direction thereof and is expanded. The guider 40 is inserted into the inner diameter of the coil 1 in the process of being attached to the magnet 4 of the 10, wherein the drive force of the motor 21 is driven by the drive shaft 20 and the bevel. One side of the guider 40 operated by the screw shaft 30 via the gears 22 and 31. The centering device of the magnetic lifter for steel coils, characterized by configuring the sensor (50) for limiting the operating range is installed.
KR1020000083479A 2000-12-28 2000-12-28 Centering apparatus of magnetic lifter for strip coil KR20020054411A (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100878672B1 (en) * 2002-10-21 2009-01-13 주식회사 포스코 Magnet lifter for moving a bad-winded coil
CN108147324A (en) * 2018-01-30 2018-06-12 开封大学 A kind of electromechanical integration lifting gear
CN108675113A (en) * 2018-06-26 2018-10-19 合肥市春华起重机械有限公司 A kind of track reuse holding frame

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100878672B1 (en) * 2002-10-21 2009-01-13 주식회사 포스코 Magnet lifter for moving a bad-winded coil
CN108147324A (en) * 2018-01-30 2018-06-12 开封大学 A kind of electromechanical integration lifting gear
CN108147324B (en) * 2018-01-30 2019-09-24 开封大学 A kind of electromechanical integration lifting device
CN108675113A (en) * 2018-06-26 2018-10-19 合肥市春华起重机械有限公司 A kind of track reuse holding frame
CN108675113B (en) * 2018-06-26 2020-08-28 合肥市春华起重机械有限公司 Clamping frame for rail hoisting

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