Anti-falling device for wire rod or horizontal coil magnetic lifting appliance

Abstract

The invention relates to a magnetic lifting appliance device, in particular to an anti-falling device of a wire rod or horizontal coil magnetic lifting appliance. Comprising protective hook driving mechanisms, protective hooks, a cross beam and magnetic lifting modules, one or more magnetic lifting modules arranged side by side are arranged at the bottom of the cross beam and used for adsorbing and lifting wire rods or horizontal coil materials, and the protective hook driving mechanisms are arranged on the two sides of each magnetic lifting module. The two ends of the protection hook driving mechanism are connected with the two protection hooks correspondingly, and the two protection hooks are located at the two axial ends of the wire rod or the horizontal roll material correspondingly. The protection hook driving mechanism drives the two protection hooks to synchronously hook the two ends of the steel material, and the steel material is prevented from falling in the hoisting process. The hoisting device is simple in structure, convenient to operate, capable of completing hoisting in a limited operation space, and safe and reliable in hoisting process.

Description

Technical Field

[0001] The invention relates to a magnetic lifting device, in particular to a magnetic lifting device for a coil or horizontal roll to prevent it from falling. Background Art

[0002] Coil, also known as wire rod, is a common name used in construction engineering. It refers to steel bars with a diameter of less than 10 mm. Because steel bars below 10 mm are easy to bend, in order to reduce the length before transportation, the manufacturer rolls the long steel bars into circles of rings. On construction sites, such steel bars are simply called coils. Horizontal coil refers to a horizontally placed coiled object. In the fields of logistics, warehousing and metallurgy, horizontal coils usually refer to horizontally placed steel coils or other coiled materials. Horizontal coil slings are widely used in major steel mills, ports, docks and other units for lifting large quantities of horizontal coiled objects.

[0003] Electromagnetic spreaders are magnetic spreaders driven by electricity. They use the magnetic field generated by conductive coils to absorb and transport materials. They are good at operating in the restricted working space of cabins and cargo holds. However, when using electromagnetic spreaders to lift round or horizontal coil materials, there are safety hazards during the lifting process, which may cause the lifted materials to fall and cause safety accidents. Therefore, there is an urgent need for a fall prevention device for magnetic spreaders for round or horizontal coils. Summary of the invention

[0004] In view of the above problems, the purpose of the present invention is to provide a device for preventing the magnetic hoist from falling when hoisting round or horizontal coil materials with the existing electromagnetic hoist, so as to solve the problem that the hoisted materials are prone to falling when hoisting round or horizontal coil materials with the existing electromagnetic hoist, causing safety accidents.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] The present invention provides a device for preventing a circular or horizontally rolled magnetic hoist from falling, comprising a crossbeam and one or more parallelly arranged magnetic protection mechanisms arranged at the bottom of the crossbeam, each magnetic protection mechanism comprising a magnetic lifting module and two groups of anti-falling modules respectively arranged on both sides of the magnetic lifting module, the magnetic lifting module being used for adsorbing and lifting the circular or horizontally rolled materials, and the anti-falling module being used for hooking the two ends of the circular or horizontally rolled materials to provide anti-falling protection during the lifting process.

[0007] In one possible implementation, the anti-fall module includes a guard hook driving mechanism and a guard hook, wherein the guard hook driving mechanism is arranged on the magnetic lifting module, and the two ends are respectively connected to two guard hooks, and the two guard hooks are respectively located at the axial ends of the coiled or horizontally rolled materials; the guard hook driving mechanism drives the two guard hooks to synchronously hook or release the two ends of the coiled or horizontally rolled materials.

[0008] In one possible implementation, the protective hook includes a hook head, a hook bend and a hook shaft, wherein the hook shaft passes through a guide seat provided on the magnetic lifting module and has the freedom of axial movement and circumferential rotation; one end of the hook shaft is connected to the protective hook driving mechanism, and the other end of the hook shaft is connected to the hook head through the hook bend.

[0009] In one possible implementation, the hook head and the hook shaft are both perpendicular to the crossbeam, and a hook shaft ring groove for limiting positioning is provided on the outer circumference of one end of the hook shaft.

[0010] In a possible implementation, the guard hook driving mechanism includes a horizontal bidirectional driving module, a guide rail and two sets of rotating driving modules, wherein the horizontal bidirectional driving module and the guide rail are both arranged on the magnetic lifting module in a direction perpendicular to the crossbeam, and the two output ends of the horizontal bidirectional driving module are respectively connected to the two sets of rotating driving modules, the two sets of rotating driving modules are both slidably connected to the guide rail, and the two sets of rotating driving modules are respectively connected to the two guard hooks;

[0011] The horizontal bidirectional driving module is used for driving the two guard hooks to extend or retract to both sides, and the two sets of rotation driving modules are used for driving the two guard hooks to rotate respectively.

[0012] In one possible implementation, the horizontal bidirectional drive module includes a horizontal motion drive motor, a horizontal drive reducer, a left-hand screw, a right-hand screw, a left horizontal movable slide and a right horizontal movable slide, wherein the input end of the horizontal drive reducer is connected to the horizontal motion drive motor, and the output shafts on both sides of the horizontal drive reducer are respectively connected to the left-hand screw and the right-hand screw of the same axis, and the left horizontal movable slide and the right horizontal movable slide are respectively connected to the left-hand screw and the right-hand screw to form a reverse thread pair.

[0013] In one possible implementation, the two groups of the rotary drive module structures are identical, both comprising a fork plate, a rotary motor, a rotary reducer and a sprocket transmission assembly, wherein the fork plate is slidably connected to the guide rail and is connected to the output end of the horizontal bidirectional drive module, the rotary reducer is arranged on one side of the fork plate, and the input end is connected to the rotary motor, and the sprocket transmission assembly is arranged on the other side of the fork plate and is used to connect the output end of the rotary reducer and the guard hook.

[0014] In one possible implementation, the magnetic lifting module is a rectangular parallelepiped structure and is disposed perpendicular to the crossbeam; the magnetic lifting module is a lifting electromagnet or a lifting permanent magnet.

[0015] In a possible implementation, the projection area of ​​the magnetic protection mechanism on the ground is smaller than the projection area of ​​the coiled or rolled material on the ground.

[0016] In a possible implementation, two ends of the top of the crossbeam are respectively connected to two suspension ropes.

[0017] The advantages and beneficial effects of the present invention are as follows: the anti-falling device for a magnetic hoist of a round or horizontal coil provided by the present invention has a simple structure and is easy to operate. It can complete the lifting of round or horizontal coil materials in a confined working space, and is safe and reliable during the lifting process, thereby preventing the hoisted round or horizontal coil materials from falling.

[0018] Other features and advantages of the present invention will be described in the following description, and partly become apparent from the description, or understood by practicing the present invention. The purpose and other advantages of the present invention can be realized and obtained by the structures particularly pointed out in the written description and the accompanying drawings.

[0019] The technical solution of the present invention is further described in detail below through the accompanying drawings and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0021] Figure 1 It is an axonometric diagram of the working state of a device for preventing a magnetic hoist from falling for a coil or horizontal coil according to the present invention;

[0022] Figure 2 It is a front view of the working state of a device for preventing a magnetic hoist from falling for a coil or horizontal coil according to the present invention;

[0023] Figure 3 for Figure 2 A local enlarged view of point A in FIG.

[0024] Figure 4 It is a structural schematic diagram of the driving mechanism of the protective hook in the present invention;

[0025] Figure 5 It is a partial axonometric diagram of the protection hook driving mechanism of the present invention;

[0026] Figure 6 It is an axonometric view of the rotary drive module of the present invention;

[0027] Figure 7 It is an axonometric diagram of a non-working state of a magnetic hoisting device for a coil or horizontal roll according to the present invention;

[0028] Figure 8 It is a front view of a non-working state of a magnetic hoisting device for preventing a circular or horizontal coil from falling of the present invention;

[0029] Fig. 9Schematic diagram of the working environment of a device for preventing a magnetic hoist from falling for a coil or horizontal coil according to an embodiment of the present invention;

[0030] Fig.10 Schematic diagram of the structure of the cabin in an embodiment of the present invention.

[0031] In the figure: 1- round or horizontal coil material, 2- magnetic lifting module, 3- hook driving mechanism, 4- hook, 401- hook head, 402- hook bend, 403- hook shaft, 404- hook shaft ring groove, 5- crossbeam, 6- lifting rope, 7- cabin, 8- projection track, 801- lower fitting position, 802- upper fitting position, 9- horizontal motion driving motor, 10- horizontal driving reducer, 11- left-hand screw, 12- right-hand screw, 13- left horizontal moving slide plate, 14- right horizontal moving slide plate, 15- rotating motor, 16- rotating reducer, 17- friction torque limiter with sprocket type, 18- chain, 19- driven sprocket, 20- guide rail, 21- fork plate, 22- guide seat. DETAILED DESCRIPTION

[0032] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0033] The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention.

[0034] The present invention provides a device for preventing a magnetic hoist from falling when the coil is round or horizontal, which has a simple structure and is easy to operate, can complete the hoisting in a limited working space, and the hoisting process is safe and reliable. Figures 1 to 8 As shown, the anti-falling device of the coiled or horizontally rolled magnetic hoist comprises a crossbeam 5 and one or more parallelly arranged magnetic attraction protection mechanisms arranged at the bottom of the crossbeam 5, each magnetic attraction protection mechanism comprises a magnetic lifting module 2 and two groups of anti-falling modules respectively arranged on both sides of the magnetic lifting module 2, the magnetic lifting module 2 is used for adsorbing and lifting the coiled or horizontally rolled material 1, and the anti-falling module is used for hooking the two ends of the coiled or horizontally rolled material 1 to provide anti-falling protection during the lifting process.

[0035] See also Figure 1 , Figure 2As shown, in an embodiment of the present invention, the anti-fall module includes a guard hook driving mechanism 3 and a guard hook 4, wherein the guard hook driving mechanism 3 is arranged on the magnetic lifting module 2, and the two ends of the guard hook driving mechanism 3 are respectively connected to the two guard hooks 4, and the two guard hooks 4 are respectively located at the axial ends of the coiled or horizontally rolled material 1; the guard hook driving mechanism 3 drives the two guard hooks 4 to synchronously hook the two ends of the coiled or horizontally rolled material 1 to prevent the coiled or horizontally rolled material 1 from falling during the lifting process.

[0036] See also Figure 1 As shown, in the embodiment of the present invention, the magnetic lifting module 2 is a rectangular parallelepiped structure and is arranged vertically with the crossbeam 5; the magnetic lifting module 2 is a lifting electromagnet or a lifting permanent magnet. The two ends of the top of the crossbeam 5 are respectively connected to two lifting ropes 6. When working, the upper end of the crossbeam 5 is lifted by the starting device through the two lifting ropes 6, and each magnetic lifting module 2 magnetically lifts a bundle of round or horizontal coiled materials 1.

[0037] See also Figure 1 , Figure 4 As shown, in an embodiment of the present invention, the protective hook 4 includes a hook head 401, a hook bend 402 and a hook shaft 403, wherein the hook shaft 403 passes through a guide seat 22 provided on the magnetic lifting module 2, and has the freedom of axial movement and circumferential rotation; one end of the hook shaft 403 is connected to the protective hook driving mechanism 3, and the other end of the hook shaft 403 is connected to the hook head 401 through the hook bend 402.

[0038] Furthermore, the hook head 401 and the hook shaft 403 are both perpendicular to the crossbeam 5, and a hook shaft ring groove 404 for limiting is provided on the outer circumference of one end of the hook shaft 403.

[0039] In this embodiment, the hook bend 402 is a long steel plate with waist holes at both ends. The hook head 401 is cylindrical, the hook head 401 is parallel to the hook shaft 403, and the hook head 401 and the hook shaft 403 are orthogonal to the hook bend 402, and the hook head 401 and the hook shaft 403 are both on one side of the hook bend 402. The hook shaft 403 is self-locked by the axial inertia force of the coiled or rolled material 1 falling, and does not damage the precision transmission parts such as the motor and the reducer.

[0040] See also Figure 4 , Figure 5 As shown, in an embodiment of the present invention, the guard hook driving mechanism 3 includes a horizontal bidirectional driving module, a guide rail 20 and two groups of rotation driving modules, wherein the horizontal bidirectional driving module and the guide rail 20 are both arranged on the magnetic lifting module 2 in a direction perpendicular to the crossbeam 5, and the two output ends of the horizontal bidirectional driving module are respectively connected to the two groups of rotation driving modules, and the two groups of rotation driving modules are both slidingly connected to the guide rail 20, and the two groups of rotation driving modules are respectively connected to the two guard hooks 4; the horizontal bidirectional driving module is used to drive the two guard hooks 4 to extend or retract to both sides, and the two groups of rotation driving modules are respectively used to drive the two guard hooks 4 to rotate.

[0041] In an embodiment of the present invention, a horizontal bidirectional drive module includes a horizontal motion drive motor 9, a horizontal drive reducer 10, a left-hand screw 11, a right-hand screw 12, a left horizontal moving slide 13 and a right horizontal moving slide 14, wherein the input end of the horizontal drive reducer 10 is connected to the horizontal motion drive motor 9, and the output shafts on both sides of the horizontal drive reducer 10 are respectively connected to the left-hand screw 11 and the right-hand screw 12 of the same axis, and the left horizontal moving slide 13 and the right horizontal moving slide 14 are respectively threadedly connected to the left-hand screw 11 and the right-hand screw 12 to form a reverse thread pair.

[0042] Specifically, the left-handed screw 11 and the right-handed screw 12 are preferably rectangular screw thread pairs with reverse force and friction self-locking of the transmission chain. The rectangular screw thread pair with reverse force and friction self-locking of the transmission chain means that the screw rotates and the screw nut moves horizontally, the screw nut is axially loaded with external force, and the screw cannot rotate.

[0043] See also Figures 4 to 6 As shown, in an embodiment of the present invention, in an embodiment of the present invention, the two groups of rotary drive module structures are the same, both including a fork plate 21, a rotary motor 15, a rotary reducer 16 and a sprocket transmission assembly, wherein the fork plate 21 is slidingly connected to the guide rail 20, and is connected to the output end of the horizontal bidirectional drive module, the rotary reducer 16 is arranged on one side of the fork plate 21, and the input end is connected to the rotary motor 15, the sprocket transmission assembly is arranged on the other side of the fork plate 21, and is used to connect the output end of the rotary reducer 16 and the guard hook 4, and the rotary motor 15 drives the guard hook 4 to rotate through the rotary reducer 16.

[0044] Specifically, the sprocket drive assembly includes a sprocket-type friction torque limiter 17, a chain 18 and a driven sprocket 19, wherein the sprocket-type friction torque limiter 17 is arranged at the output end of the rotary reducer 16; the driven sprocket 19 is arranged on the guard hook 4 and connected to the sprocket-type friction torque limiter 17 through the chain 18. When the coiled or horizontally rolled material 1 falls, the sprocket-type friction torque limiter 17 prevents the rotary motor 15 and the rotary reducer 16 from being damaged by the impact of the fall.

[0045] Further, a slot is provided at the lower end of the fork plate 21, and the slot is engaged in the hook shaft ring groove 404 of the hook shaft 403. When the fork plate 21 moves horizontally, the protective hook 4 is synchronously driven to move horizontally.

[0046] During operation, the horizontal motion driving motor 9 drives the left-hand screw 11 and the right-hand screw 12 to coaxially rotate through the horizontal driving reducer 10. Then, the left horizontal moving slide 13 and the right horizontal moving slide 14 move closer to or farther from each other along the axial direction of the coiled or horizontally rolled material 1. The left horizontal moving slide 13 and the right horizontal moving slide 14 are respectively connected to two fork plates 21, and the two fork plates 21 can drive the two guard hooks 4 to move closer to or farther from each other along the axial direction of the coiled or horizontally rolled material 1 by shifting the hook shaft ring groove 404, thereby extending or retracting.

[0047] In this embodiment, a plurality of magnetic lifting modules 2 arranged in parallel are provided at the bottom of the crossbeam 5. The spatial positions and postures of the plurality of coiled or rolled materials 1 placed on the ground are uncertain. Under the action of the appropriate electromagnetic air gap adsorption of the magnetic lifting module 2, the coiled or rolled materials 1 are elastically deformed so as to be fully contacted with the magnetic lifting module 2 and be adsorbed.

[0048] Furthermore, the projection area of ​​the magnetic protection mechanism on the ground is smaller than the projection area of ​​the coil or horizontal roll material 1 on the ground. Figure 7 , Figure 8 As shown, when the guard hook driving mechanism 3 drives the guard hook 4 to be stored, the hook bend 402 is closest to the guard hook driving mechanism 3, and the length direction of the hook bend 402 is upward.

[0049] Example

[0050] The following description will be made by taking the hoisting of materials in the cabin 7 as an example.

[0051] See also Fig. 9 , Fig.10 As shown, the present invention provides a magnetic hoisting device for coiling or horizontal coiling, and approaches or enters the cabin 7 when the anti-falling module is in the storage state. The cabin 7 comprises a cabin bottom 701, a cabin side wall 702 and a cabin upper plate 703, the cabin side wall 702 is orthogonal to the cabin bottom 701, and the cabin upper plate 703 is orthogonal to the cabin side wall 702. The space under the cabin upper plate 703 is a dark warehouse, and the space above the open warehouse is a cargo hold, and the dark warehouse and the open warehouse are combined to form a cargo hold.

[0052] When one end face of the coiled or rolled material 1 approaches the side wall 702 of the cabin, the magnetic lifting module 2 can absorb the coiled or rolled material 1 without interfering with the cabin side wall 702 or the cabin upper plate 703 of the dark warehouse because the anti-falling module is in the storage state. When the anti-falling device of the coiled or rolled magnetic hoist just leaves the cargo hold of the cabin 7, the anti-falling module switches from the storage state to the anti-falling configuration, that is, the protective hook 4 hooks the two ends of the coiled or rolled material 1.

[0053] The present invention provides a magnetic hoist anti-falling device for a coil or horizontal roll, which solves the safety accidents and losses caused by the coil or horizontal roll material 1 falling off when the electromagnetic hoist absorbs heavy objects because the lifting position is too high relative to the position of the cabin, truck compartment, etc. The present invention adds an anti-falling module. After the magnetic lifting module 2 sucks the coil or horizontal roll material 1 and lifts it, the anti-falling module is activated, and the hook head 401 hooks the two ends of the coil or horizontal roll material 1 to perform an anti-falling action. Because the hook head 401 extends into the inner hole of the coil or horizontal roll material 1, the anti-falling is safe and reliable. Before reaching the ship's hold, the hook head 401 is reset to the storage state, and the entire anti-falling device of the magnetic hoist for a coil or horizontal roll enters the ship's hold. When the coil or horizontal roll material 1 is hoisted into the ship's hold, the anti-falling module is also required not to interfere with the ship's hold.

[0054] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.

Claims

1. A device for preventing a magnetic hoist from falling when the coil is round or horizontal, characterized in that: The invention comprises a crossbeam (5) and one or more parallel magnetic protection mechanisms arranged at the bottom of the crossbeam (5), each magnetic protection mechanism comprising a magnetic lifting module (2) and two sets of anti-falling modules respectively arranged on both sides of the magnetic lifting module (2), the magnetic lifting module (2) being used for adsorbing and lifting the coiled or rolled material (1), and the anti-falling module being used for hooking the two ends of the coiled or rolled material (1) to provide anti-falling protection during the lifting process.

2. The anti-falling device for a circular or horizontal coil magnetic hanger according to claim 1, characterized in that: The anti-fall module comprises a protective hook driving mechanism (3) and a protective hook (4), wherein the protective hook driving mechanism (3) is arranged on the magnetic lifting module (2), and the two ends are respectively connected to two protective hooks (4), and the two protective hooks (4) are respectively located at the axial ends of the coiled or rolled material (1); the protective hook driving mechanism (3) drives the two protective hooks (4) to synchronously hook or release the two ends of the coiled or rolled material (1).

3. The anti-falling device for a circular or horizontal coil magnetic hanger according to claim 2, characterized in that: The protective hook (4) comprises a hook head (401), a hook bend (402) and a hook shaft (403), wherein the hook shaft (403) passes through a guide seat (22) provided on the magnetic lifting module (2) and has the freedom of axial movement and circumferential rotation; one end of the hook shaft (403) is connected to the protective hook driving mechanism (3), and the other end of the hook shaft (403) is connected to the hook head (401) through the hook bend (402).

4. The anti-falling device for a circular or horizontal coil magnetic hanger according to claim 3, characterized in that: The hook head (401) and the hook shaft (403) are both perpendicular to the crossbeam (5), and a hook shaft ring groove (404) for limiting position is provided on the outer circumference of one end of the hook shaft (403).

5. The anti-falling device for a coiled or horizontal magnetic hanger according to claim 2, characterized in that: The guard hook driving mechanism (3) comprises a horizontal bidirectional driving module, a guide rail (20) and two groups of rotating driving modules, wherein the horizontal bidirectional driving module and the guide rail (20) are both arranged on the magnetic lifting module (2) in a direction perpendicular to the crossbeam (5), the two output ends of the horizontal bidirectional driving module are respectively connected to the two groups of rotating driving modules, the two groups of rotating driving modules are both slidably connected to the guide rail (20), and the two groups of rotating driving modules are respectively connected to the two guard hooks (4); The horizontal bidirectional driving module is used to drive the two guard hooks (4) to extend or retract to both sides, and the two sets of rotation driving modules are used to drive the two guard hooks (4) to rotate respectively.

6. The anti-falling device for a circular or horizontal coil magnetic hanger according to claim 5, characterized in that: The horizontal bidirectional drive module comprises a horizontal motion drive motor (9), a horizontal drive reducer (10), a left-hand screw (11), a right-hand screw (12), a left horizontal moving slide plate (13) and a right horizontal moving slide plate (14), wherein the input end of the horizontal drive reducer (10) is connected to the horizontal motion drive motor (9), the output shafts on both sides of the horizontal drive reducer (10) are respectively connected to the left-hand screw (11) and the right-hand screw (12) of the same axis, and the left horizontal moving slide plate (13) and the right horizontal moving slide plate (14) are respectively connected to the left-hand screw (11) and the right-hand screw (12) to form a reverse thread pair.

7. The anti-falling device for a coiled or horizontal magnetic hanger according to claim 5, characterized in that: The two groups of rotary drive modules have the same structure, and both include a shift fork plate (21), a rotary motor (15), a rotary reducer (16) and a sprocket transmission assembly, wherein the shift fork plate (21) is slidably connected to the guide rail (20) and is connected to the output end of the horizontal bidirectional drive module, the rotary reducer (16) is arranged on one side of the shift fork plate (21), and its input end is connected to the rotary motor (15), and the sprocket transmission assembly is arranged on the other side of the shift fork plate (21), and is used to connect the output end of the rotary reducer (16) and the protective hook (4).

8. The anti-falling device for a circular or horizontal coil magnetic hanger according to claim 1, characterized in that: The magnetic lifting module (2) is a rectangular parallelepiped structure and is arranged perpendicular to the crossbeam (5); the magnetic lifting module (2) is a lifting electromagnet or a lifting permanent magnet.

9. The anti-falling device for a circular or horizontal coil magnetic hanger according to claim 1, characterized in that: The projection area of ​​the magnetic protection mechanism on the ground is smaller than the projection area of ​​the coiled or rolled material (1) on the ground.

10. The anti-falling device for a circular or horizontal coil magnetic hanger according to claim 1, characterized in that: The two ends of the top of the crossbeam (5) are respectively connected to two suspension ropes (6).

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