CN219156254U - Steel coil magnetic lifting appliance and steel coil lifting device - Google Patents

Abstract

The utility model discloses a steel coil magnetic lifting appliance and a steel coil lifting device, which belong to the technical field of electromagnetic lifting appliances, wherein the steel coil magnetic lifting appliance comprises a magnetic head, a cross beam and a limit column; the cross beam is provided with a hanging shaft for hanging the cross beam with a hanging hook of the crown block, and the cross beam is connected with the magnetic head through a sling; one end of the limiting column is in sliding connection with the cross beam along the length direction of the limiting column, the other end of the limiting column is hinged with the magnetic head through a hinge shaft, and the hinge shaft is parallel to the axis of the steel coil. If the lifting appliance descends to take the steel coil, the magnetic head is not centered with the steel coil, and the magnetic head is inclined, because the limit column is rotationally connected with the magnetic head, the limit column can continuously keep vertical extension under the action of gravity and can not incline, the cross beam is in sliding connection with the limit column, the limit column can limit the cross beam not to incline, so that the lifting shaft on the cross beam can not incline, the lifting hook of the crown block can not incline, the problem that a steel wire rope is separated from a groove of the movable pulley due to the inclination of the lifting hook is avoided, and the lifting process is smooth.

Description

Steel coil magnetic lifting appliance and steel coil lifting device

Technical Field

The utility model belongs to the technical field of electromagnetic lifting appliances, and particularly relates to a steel coil magnetic lifting appliance and a steel coil lifting device.

Background

The electromagnetic lifting appliance is equipment for lifting iron and steel products such as steel coils and steel plates by utilizing electromagnetic force, and comprises an electromagnet, a limit column and a lifting seat, wherein the electromagnet is provided with a cylindrical surface matched with the appearance of the steel coils, an action surface of the electromagnet is connected with the steel coils through electromagnetic force, the lower end of the limit column is connected with the electromagnet, two lifting lugs which are oppositely arranged and a lifting shaft connected with the two lifting lugs are arranged at the top end of the lifting seat, the lifting hook of the crown block is connected on the lifting shaft, the lifting hook of the crown block is in clearance fit with the two lifting lugs, the lifting seat can be connected with the limit column in a sliding manner along the vertical direction, and the lifting seat is connected with the electromagnet through a lifting rope. When the electromagnetic crane runs downwards and is close to the steel coil, the steel coil and the electromagnet are possibly out of centering, at the moment, the side part of the electromagnetic crane can be in contact with the steel coil, the electromagnetic crane continuously descends the electromagnet, the limiting column and the lifting shaft to incline, so that the lifting hook of the crown block is caused to collide with the lifting lug to incline, the steel wire of the crown block can be separated from the groove of the movable pulley, even the steel wire is caused to be separated from the groove of the roller, and equipment faults occur.

Disclosure of Invention

The utility model provides a steel coil magnetic lifting device and a steel coil lifting device, aiming at solving the technical problem that equipment faults occur when a steel coil is not centered with an electromagnet during lifting of the steel coil by an electromagnetic lifting device and the crane lifting hook is inclined.

The utility model adopts a technical scheme that: the utility model provides a coil of strip magnetism is inhaled hoist, include:

the magnetic head is used for magnetically attracting the steel coil;

the top of the cross beam is connected with a hanging shaft for hanging a hanging hook of the crown block, and the cross beam is connected with the magnetic head through a sling;

and one end of the limiting column is in sliding connection with the cross beam along the length direction of the limiting column, the other end of the limiting column is hinged with the magnetic head through a hinge shaft, and the hinge shaft is parallel to the axis of the steel coil.

In some embodiments, the steel coil magnetic lifting appliance comprises a first controller connected to the cross beam, wherein the first controller is provided with a first 5G communication module, the cross beam is provided with more than one position sensor electrically connected with the first controller, the limit posts are provided with sensing positions with the same number as the position sensors, and the sensing positions correspond to the positions of the corresponding position sensors along the vertical direction;

when the position sensor and the sensing position are both provided with more than two, the heights of the more than two position sensors are different or the heights of the more than two sensing positions are different.

In some embodiments, the position sensor and the sensing position are all provided with three, the steel coil magnetic attraction lifting appliance comprises a sensing plate connected to the limiting column, when the three sensing positions are different in height, the sensing plate is provided with three ladder sections, the lower part of the highest ladder section is provided with an avoidance hole, and the three ladder sections form three sensing positions.

In some embodiments, the hinge shaft is provided with an angle sensor electrically connected with the first controller.

In some embodiments, a first coil inductor electrically connected to the first controller is provided at the bottom of the magnetic head.

In some embodiments, the length of the cross beam is greater than the dimension of the magnetic head in the axial direction of the cross beam, and two ends of the cross beam are respectively provided with a second steel coil sensor electrically connected with the first controller.

In some embodiments, the second coil sensor is a scanner connected to the cross beam by a rotating mechanism comprising:

the driving motor is connected to the cross beam and is electrically connected with the first controller;

the rotating shaft is connected with an output shaft of the driving motor;

and the bracket is connected with the rotating shaft and the scanner.

In some embodiments, the magnetic head is provided with a magnetic attraction surface for magnetically attracting the steel coil, and the magnetic attraction surface is arc-shaped;

the sling is provided with a plurality of slings, and the sling is arranged on the outer side of the limiting column in a surrounding mode at intervals.

In some embodiments, the two limiting posts are arranged oppositely, rolling grooves extending along the vertical direction are formed in the inner sides of the two limiting posts, and rolling wheels in rolling contact with the rolling grooves are connected to two sides of the transverse beam in the width direction respectively.

The utility model adopts another technical scheme that: there is provided a steel coil lifting device comprising:

the crown block is provided with a lifting hook and a second controller, and the second controller is provided with a second 5G communication module;

according to the steel coil magnetic attraction lifting appliance, the lifting shaft of the steel coil magnetic attraction lifting appliance is hooked on the lifting hook.

The beneficial effects of the utility model at least comprise:

the utility model provides a steel coil magnetic attraction lifting appliance which comprises a magnetic head, a cross beam and a limit column; the cross beam is provided with a hanging shaft which is used for hanging the hanging hook of the crown block, the hanging shaft can be horizontally arranged, the cross beam is positioned above the magnetic head, the cross beam is connected with the magnetic head through a sling, and when the sling is tensioned, the cross beam can drive the magnetic head to be transported from one position to the other position; one end of the limiting column is in sliding connection with the cross beam along the length direction of the limiting column, the other end of the limiting column is hinged with the magnetic head through the hinge shaft, the hinge shaft is parallel to the axis of the steel coil, and buffering can be provided after the magnetic head contacts the steel coil, so that the cross beam is decelerated to zero at a certain falling speed, and steel coil damage caused by rigid connection is avoided. When the steel coil is required to be lifted, the whole steel coil magnetic attraction lifting appliance descends, and as the magnetic head is located at the lowest position, the magnetic head firstly contacts the steel coil, when the magnetic head contacts the steel coil, the cross beam descends until the magnetic head is zero, the magnetic head and the steel coil generate magnetic attraction, at the moment, the cross beam ascends until the cross beam moves to the uppermost limit of the limit column, the sling is tensioned, the cross beam continues to ascend, the magnetic head ascends to the air under the acting force of the sling and is lifted to a target position, and the magnetic head is separated from the steel coil. If the lifting appliance descends to take the steel coil, the magnetic head is not centered with the steel coil, one side of the magnetic head, which is contacted with the steel coil, cannot descend, the other side of the magnetic head can continuously descend, and the magnetic head tilts.

Drawings

Fig. 1 shows a schematic structural view of a steel coil magnetic lifting appliance in this embodiment.

Fig. 2 shows a side view of the coil of steel magnetic spreader of fig. 1.

Fig. 3 shows a partial enlarged view of the coil magnetic spreader of fig. 1.

Fig. 4 shows a schematic structural diagram of the assembly of the rotating mechanism and the second coil inductor in the coil magnetic lifting appliance of fig. 2.

Reference numerals illustrate:

100-magnetic heads; 200-cross beams, 220-hanging shafts; 230-lifting lugs; 300-position sensor; 400-rotating mechanism, 410-driving motor, 420-rotating shaft and 430-bracket; 500-slings; 600-limit posts, 610-sense positions; 620-a sensing plate, 621-a step section and 622-a avoidance hole; 700-hinging shaft; 800-a first steel coil sensor; 900-a second steel coil sensor; 1000-coil of steel.

Detailed Description

In order to make the technical solution more clearly understood by those skilled in the art, the following detailed description is made with reference to the accompanying drawings.

Example 1

The embodiment of the application provides a hoist is inhaled to coil of strip magnetism, and this hoist is inhaled to coil of strip magnetism is used for magnetism to inhale coil of strip handling, and gets the coil of strip process and even appear electro-magnet and coil of strip misalignment also can avoid the wire rope that the lifting hook slope led to take off the groove problem.

Referring to fig. 1 and 2, the coil magnetic attraction lifting appliance provided in the embodiment of the present application includes a magnetic head 100, a cross beam 200 and a limit post 600, where the magnetic head 100 is used for magnetically attracting a coil 1000, and the magnetic head 100 may use a natural magnet or an electromagnet, when the magnetic head 100 uses the electromagnet, the electromagnet generates magnetism to attract the coil 1000 after the electromagnet is powered on, and the magnetism of the electromagnet disappears after the electromagnet is powered off and can be separated from the coil 1000; the cross beam 200 is provided with a hanging shaft 220 for hanging with a hanging hook of the crown block, the hanging shaft 220 can be horizontally arranged, the cross beam 200 is positioned above the magnetic head 100, the cross beam 200 is connected with the magnetic head 100 through a sling 500, and when the sling 500 is tensioned, the cross beam 200 can drive the magnetic head 100 to be transported from one position to the other position; one end of the limit post 600 is slidably connected with the cross beam 200 along the length direction of the limit post 600, the other end is hinged with the magnetic head 100 through the hinge shaft 700, the hinge shaft 700 is parallel to the axis of the steel coil 1000, and buffering can be provided after the magnetic head 100 contacts the steel coil 1000, so that the cross beam 200 is decelerated to zero at a certain falling speed, and the steel coil 1000 is prevented from being damaged due to rigid connection.

Taking the magnetic head 100 as an electromagnet as an example, when the steel coil 1000 needs to be lifted, the lifting appliance integrally descends, and because the electromagnet is located at the lowest position, the electromagnet firstly contacts the steel coil 1000, when the electromagnet contacts the steel coil 1000, the cross beam 200 decelerates until the electromagnet is zero, the electromagnet is electrified, the electromagnet and the steel coil 1000 generate magnetic attraction, at the moment, the cross beam 200 is lifted until the cross beam 200 runs to the uppermost limit of the limit column 600, the sling 500 is also tensioned, the cross beam 200 continues to lift, the electromagnet rises to the air under the acting force of the sling 500 and is lifted to the target position, at the moment, the power is off, the magnetism of the electromagnet disappears, and the electromagnet is separated from the steel coil 1000. If the lifting appliance is used for taking the steel coil 1000 in a descending manner, the electromagnet is not centered with the steel coil 1000, one side, in contact with the steel coil 1000, of the electromagnet cannot descend, the other side of the electromagnet can continue descending, the electromagnet is inclined, and the limiting column 600 can continue to vertically extend under the action of gravity and cannot topple over due to the fact that the limiting column 600 is rotationally connected with the electromagnet, the cross beam 200 is in sliding connection with the limiting column 600, the limiting column 600 can limit the cross beam 200 not to incline, so that the lifting hook 220 on the cross beam 200 cannot incline, the lifting hook of a crane cannot incline, and the axial directions of the lifting hook and the movable pulley are ensured to extend along the horizontal direction, so that faults cannot occur.

For quick adjustment when the electromagnet is tilted, in some embodiments the hinge 700 is provided with an angle sensor that detects the angle of rotation of the hinge 700 relative to the head 100 or the post 600. In some embodiments, the hinge 700 rotates relative to the magnetic head 100, the hinge 700 is fixedly connected with the limit post 600, and the angle sensor detects the relative rotation angle of the hinge 700 and the magnetic head 100; in other embodiments, the hinge shaft 700 rotates relative to the limit post 600, the hinge shaft 700 is fixedly connected with the magnetic head 100, the angle sensor detects the relative rotation angle of the hinge shaft 700 and the limit post 600, the steel coil magnetic attraction lifting appliance comprises a first controller connected with the cross beam 200, the first controller is provided with a first 5G communication module, the angle sensor is electrically connected with the first controller, and when the angle sensor detects that the rotation angle is greater than a first set value, for example, the rotation angle is greater than 10 degrees, the first controller considers that the magnetic head 100 is not aligned with the steel coil 1000, and controls the electromagnetic lifting appliance to lift and re-align with the steel coil 1000; when the angle sensor detects that the rotation angle is smaller than the second set value, for example, 5 °, the first controller considers that the magnetic head 100 is centered with the steel coil 1000 and continues to descend. The angle sensor may use an encoder connected to the hinge shaft 700. The first controller may be disposed in a control cabinet, the control cabinet is connected to the top of the cross beam 200, and the control cabinet is located at one side of the limit post 600.

Referring to fig. 2, in some embodiments, the magnetic head 100 is provided with a magnetic attraction surface for magnetically attracting the steel coil 1000, the magnetic attraction surface is arc-shaped, the diameter of the magnetic attraction surface corresponding to a circle is larger than that of the steel coil 1000, and when the magnetic attraction surface magnetically attracts the steel coil 1000, the steel coil 1000 is inscribed with the magnetic surface; the magnetic attraction surface is an arc surface, such as a cylindrical surface, so that the magnetic attraction area of the steel coil 1000 and the electromagnet can be increased, and the stability of the lifting process can be improved.

For monitoring the positional relationship between the cross beam 200 and the limit post 600, please refer to fig. 1 and 3, in some embodiments, the cross beam 200 is provided with more than one position sensor 300 electrically connected to the first controller, where more than one can be understood as at least one, i.e. one position sensor 300, two position sensors 300 or three position sensors 300 are provided, and the limit post 600 is provided with the same number of sensing positions 600 as the position sensors 300, and the sensing positions 600 correspond to the positions of the corresponding position sensors 300 along the vertical direction.

In some embodiments, with continued reference to fig. 1 and 3, the position sensor 300 and the sensing bit 600 are provided with two or more, where two or more may be understood as at least two, such as two, three, four or five, the heights of the two or more position sensors 300 are different or the heights of the two or more sensing bits 600 are different.

When the three sensing positions 600 are different in height, in some embodiments, the position sensor 300 and the sensing positions 600 are all provided with three, the steel coil magnetic attraction lifting tool comprises a sensing plate 620 connected to the limiting post 600, referring to fig. 3, the top of the sensing plate 620 is provided with three stepped sections 621 with different heights, the lower part of the stepped section 621 with the highest height is provided with a avoidance hole 622, and the three stepped sections 621 form the three sensing positions 600. More specifically, the cross beam 200 is provided with a weight-reducing cavity with an opening at the lower part, the position sensor 300 is located on the cavity wall of the weight-reducing cavity, the bottom of the sensing plate 620 is connected to the limiting post 600, the step 621 of the sensing plate 620 can extend into the weight-reducing cavity through the opening gap, when the cross beam 200 moves to the highest position relative to the limiting post 600, the sling 500 is in a tensioning state at this time, and the sensing position 600 with the highest height is sensed by the corresponding position sensor 300. When the lifting appliance descends to take the coil, the electromagnet descends to contact the steel coil 1000 to stop moving, at the moment, the cross beam 200 can continue to descend for a small distance, the position sensor 300 corresponding to the highest sensing position 600 is aligned to the avoiding hole 622, the position sensor 300 has no signal feedback, the step 621 of the height degree can sense with the corresponding position sensor 300 and feed the signal back to the first controller, and the first controller judges that the magnetic head 100 is in a non-suspended state at the moment; when the cross beam 200 descends too much relative to the limit post 600, the step 621 with the lowest height is sensed by the corresponding position sensor 300, and the position sensor 300 feeds back a signal to the first controller to give a sudden stop signal, so that the crown block is stopped suddenly to protect the steel coil magnetic lifting appliance. The sensing plate 620 may be a metal plate, and the position sensor 300 may be a proximity switch or a contact switch, which is not particularly limited in this application.

In some embodiments, referring to fig. 2, a first coil sensor 800 is disposed at the bottom of the magnetic head 100, the first coil sensor 800 is electrically connected to the first controller, the first coil sensor 800 may be used to detect whether the magnetic head 100 approaches the coil 1000, and the first coil sensor 800 may be plural, in this embodiment, two first coil sensors 800 are disposed at two sides of the magnetic head 100 along the axial direction of the coil 1000. The first coil inductor 800 may be a proximity switch or a laser range finder, which is not limited in this application. In the coil taking process of the coil magnetic attraction lifting appliance, when the magnetic head 100 descends, the first coil inductor 800 can detect whether the magnetic head 100 is close to the coil 1000 or not, and can effectively prevent the electromagnet from colliding with the coil 1000; after the electromagnet is electrified, the first steel coil sensor 800 detects whether the steel coil 1000 exists below the electromagnet, a reliable judgment basis is provided for judging whether the steel coil 1000 exists below the current electromagnet, the electromagnet can be effectively prevented from being electrified under the condition that the lower part is not coiled, the electromagnet can be effectively prevented from contacting the steel coil 1000 under the condition of being electrified, and danger is avoided.

In some embodiments, please combine fig. 2, the length of the cross beam 200 is greater than the dimension of the magnetic head 100 in the axial direction of the cross beam 200, two ends of the cross beam 200 extend out of the electromagnet, two ends of the cross beam 200 are respectively provided with a second coil inductor 900 electrically connected with the first controller, two ends of the cross beam 200 are respectively provided with a second coil inductor 900 for determining whether a coil 1000 exists, the second coil inductor 900 can adopt a laser scanner, before the lifting appliance descends, the laser scanner can scan the saddle below to determine whether the coil 1000 exists, if the coil 1000 exists, the need for lifting is indicated, if the coil 1000 does not exist, the position is continuously replaced to search for the coil 1000 for lifting.

To increase the scanning range of the second coil sensor 900, referring to fig. 2 and 4, in some embodiments, the scanner is connected to the beam 200 through a rotation mechanism 400, the rotation mechanism 400 includes a driving motor 410, a rotation shaft 420 and a bracket 430, the driving motor 410 is connected to the beam 200, the rotation shaft 420 is connected to an output shaft of the driving motor 410, and the bracket 430 is connected to the rotation shaft 420 and the scanner. The rotation shaft 420 may be coaxial with the cross member 200, and the rotation shaft 420 may be located at the bottom of the cross member 200, with the rotation shaft 420 being parallel to the cross member 200.

In order to improve the sliding connection stability of the limiting column 600 and the cross beam 200 and reduce the friction resistance in the relative motion process of the limiting column 600 and the cross beam 200, in some embodiments, the limiting column 600 is provided with two limiting columns 600, the two limiting columns 600 are oppositely arranged, the limiting column 600 is provided with a rolling groove extending towards the cross beam 200 along the vertical direction, two sides of the width direction of the cross beam 200 are respectively connected with rolling elements in rolling contact with the rolling groove, and the rolling elements can be rolling balls or rolling wheels.

The slings 500 are provided with a plurality of slings 500, the slings 500 are arranged at intervals around the outer sides of the limiting columns 600, the slings 500 can be chains or steel wires, in some embodiments, the slings 500 are provided with four slings 500, the four slings 500 are arranged in a matrix, two slings are positioned on two sides of one limiting column 600 along the axial direction of the cross beam 200, and the other two slings are positioned on two sides of the other limiting column 600 along the axial direction of the cross beam 200.

Example two

Based on the same technical concept as the first embodiment, the embodiment of the application provides a steel coil hoisting device, which can avoid side turning of a lifting hook when hoisting a steel coil 1000, and ensure smooth coil fetching.

The steel coil lifting device comprises an overhead travelling crane and the steel coil magnetic lifting appliance in the first embodiment, wherein the overhead travelling crane is provided with a lifting hook and a second controller provided with a second 5G communication module, the lifting hook is hooked on a lifting shaft 220, and the second controller and the first controller are in data communication with the second 5G communication module through the first 5G communication module, so that the transmission rate is high, and signals are stable; and no continuous wire harness is connected, so that space is saved.

The steel coil magnetic lifting tool comprises two lifting lugs 230 which are oppositely arranged, the two lifting lugs 230 are connected to the top of the cross beam 200, the lifting shaft 220 is connected to the two lifting lugs 230, the cross beam 200 and the lifting lugs 230 can be of split type structures, and in some embodiments, the cross beam 200 and the lifting lugs 230 can be of integrated structures, and the connection strength is high. The controller stores a computer program to form a PLC control system, and the first transmitter, the second transmitter, the first sensor, the driving motor 410, and the second sensor are connected to the PLC control system.

The driving control program provided by the embodiment of the application is easy to write and stable to operate; the detection equipment is mature, and the maintenance cost is low; is insensitive to electromagnetic interference.

While the preferred embodiments of the present application have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. It is therefore intended that the following claims be interpreted as including the preferred embodiments and all such alterations and modifications as fall within the scope of the application.

It will be apparent to those skilled in the art that various modifications and variations can be made in the present application without departing from the spirit or scope of the application. Thus, if such modifications and variations of the present application fall within the scope of the claims and the equivalents thereof, the present application is intended to cover such modifications and variations.

Claims (10)

1. A coil of strip magnetism is inhaled hoist, characterized in that includes:

the magnetic head is used for magnetically attracting the steel coil;

the top of the cross beam is connected with a hanging shaft for hanging a hanging hook of the crown block, and the cross beam is connected with the magnetic head through a sling;

and one end of the limiting column is in sliding connection with the cross beam along the length direction of the limiting column, the other end of the limiting column is hinged with the magnetic head through a hinge shaft, and the hinge shaft is parallel to the axis of the steel coil.

2. The steel coil magnetic lifting appliance according to claim 1, wherein the steel coil magnetic lifting appliance comprises a first controller connected to the cross beam, the first controller is provided with a first 5G communication module, the cross beam is provided with more than one position sensor electrically connected with the first controller, the limit posts are provided with sensing positions with the same number as the position sensors, and the sensing positions correspond to the positions of the corresponding position sensors along the vertical direction;

when the position sensor and the sensing position are both provided with more than two, the heights of the more than two position sensors are different or the heights of the more than two sensing positions are different.

3. The steel coil magnetic lifting appliance according to claim 2, wherein three position sensors and three induction positions are respectively arranged, the steel coil magnetic lifting appliance comprises an induction plate connected to the limit post, when the three induction positions are different in height, three stepped sections with different heights are arranged at the top of the induction plate, avoidance holes are formed below the stepped section with the highest height, and the three stepped sections form three induction positions.

4. The steel coil magnetic lifting appliance of claim 2, wherein the hinge shaft is provided with an angle sensor electrically connected with the first controller.

5. The coil magnetic lifting appliance of claim 2, wherein a first coil inductor electrically connected to the first controller is provided at the bottom of the magnetic head.

6. The steel coil magnetic lifting appliance of claim 2, wherein the length of the cross beam is greater than the axial dimension of the magnetic head of the cross beam, and two ends of the cross beam are respectively provided with a second steel coil inductor electrically connected with the first controller.

7. The coil of strip magnetic lifting appliance of claim 6 wherein the second coil of strip sensor is a scanner connected to the cross beam by a rotating mechanism comprising:

the driving motor is connected to the cross beam and is electrically connected with the first controller;

the rotating shaft is connected with an output shaft of the driving motor;

and the bracket is connected with the rotating shaft and the scanner.

8. The steel coil magnetic lifting appliance according to any one of claims 2 to 7, wherein the magnetic head is provided with a magnetic attraction surface for magnetically attracting the steel coil, and the magnetic attraction surface is arc-shaped;

the sling is provided with a plurality of slings, and the sling is arranged on the outer side of the limiting column in a surrounding mode at intervals.

9. The steel coil magnetic lifting appliance according to any one of claims 2 to 7, wherein two limit posts are provided, the two limit posts are arranged opposite to each other, rolling grooves extending in the vertical direction are formed in the inner sides of the two limit posts, and rolling wheels in rolling contact with the rolling grooves are respectively connected to two sides of the transverse beam in the width direction.

10. A steel coil lifting device, characterized by comprising:

the crown block is provided with a lifting hook and a second controller, and the second controller is provided with a second 5G communication module;

the steel coil magnetic lifting appliance of any one of claims 1 to 9, wherein a lifting shaft of the steel coil magnetic lifting appliance is hooked on the lifting hook.

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