A flat-belt type electromagnetic lifting tool with balancing function

Abstract

The utility model discloses a flat pole type electromagnetic lifting appliance with balance function, including main beam, hanging bracket, cable connector, branch box, support, lifting point vertical board, flat pole type balance mechanism and electromagnet, adopt flat pole type balance mechanism to replace the design of traditional mode electromagnet direct connection through chain and main beam, can realize the position automatic adjustment between electromagnet and electromagnet itself through flat pole type balance mechanism, thereby realize that electromagnet adsorption surface no longer is fixed in same plane, make electromagnet adsorption surface and steel surface always keep contact area maximization in the hoisting process of electromagnet lifting appliance, and electromagnet can provide enough adsorption force to steel, and flat pole type balance mechanism guarantees that each lifting point stress is equal, prevents local stress too big, avoids the risk of hoisting object inclination or drop, greatly improves the security of operation.

Description

Technical Field

[0001] This utility model relates to the technical field of electromagnetic lifting devices, specifically to a flat-pole type electromagnetic lifting device with balancing function. Background Technology

[0002] Electromagnetic lifting devices play a vital role in modern industry due to their high efficiency and safety. An electromagnetic lifting device is a device that uses the principle of electromagnets to grasp and move magnetic materials, and is widely used for handling metal materials such as steel plates, billets, and bars. When the power is turned on, the electromagnet generates a strong magnetic field, at which point the electromagnetic lifting device can firmly attract the object. When the power is turned off, the electromagnet loses its magnetism, and the attracted object falls.

[0003] However, when hoisting long steel sections, multiple electromagnets are often used. Typically, the electromagnets are directly connected to the lower part of the lifting beam via chains, and all the electromagnets' adsorption surfaces are fixed on the same plane. However, due to the flexibility of the steel itself and the effect of gravity, it may bend and deform. The surface of the steel may be uneven or tilted, resulting in incomplete contact between the electromagnet's adsorption surface and the steel. Consequently, the electromagnetic lifting device's adsorption force on the steel is insufficient, making it easy for the steel to fall off during the hoisting process. This seriously affects the safety and stability of the hoisting and threatens the personal safety of the workers. Utility Model Content

[0004] In view of the above-mentioned technical problems in related technologies, this utility model provides a flat-pole type electromagnetic lifting device with balancing function, which can solve the above problems.

[0005] To achieve the above-mentioned technical objectives, the technical solution of this utility model is implemented as follows: A balancing electromagnetic lifting device with a spreader beam includes a main beam. Two hangers are symmetrically welded to the left and right sides of the upper end of the main beam. A junction box is installed at the center of the front side of the main beam. Several cable connectors are also installed on the front side of the main beam. Two symmetrically distributed legs are welded to the lower end of the main beam. Two symmetrically distributed lifting point plates are also welded to the lower end of the main beam. The legs are located between the two lifting point plates. The lifting point plates are hinged to a spreader beam balancing mechanism via spreader beam axle pins. The spreader beam balancing mechanism includes a spreader beam. The two ends of the spreader beam are hinged to a balance plate via balance plate axle pins. The two ends of the balance plate are connected to an electromagnet via chains. The cable connectors are located directly above the electromagnets. The electromagnets are electrically connected to the cable connectors, and the cable connectors are electrically connected to the junction box.

[0006] Furthermore, the main beam is internally provided with longitudinal stiffeners and transverse support plates, which together form a mesh-like bending-resistant structure.

[0007] Furthermore, the upper end of the hanger is connected to the lifting equipment via a main beam axle pin. The hanger is a herringbone structure welded from steel plates. The hanger includes a hanger base plate, two hanger upright plates are welded to the middle of the hanger base plate, hanger stiffeners are welded to the outer side of the hanger upright plates, and a hanger axle seat adapted to the main beam axle pin is provided at the upper end of the hanger upright plates.

[0008] Furthermore, the support leg has a figure-eight shape that is narrower at the top and wider at the bottom. The support leg includes two vertical pillars, and several horizontal pillars are connected between the two vertical pillars. The bottom of the vertical pillars is welded with a support base plate.

[0009] Furthermore, the flat-pole balancing mechanism includes a flat-pole beam, the middle part of which is hinged to the lifting point plate via a flat-pole beam axle pin, and the two ends of which are hinged to the balance plate via balance plate axle pins. The two balance plates and the flat-pole beam form an I-shaped structure.

[0010] Furthermore, the electromagnet has two symmetrical lugs at its upper end, and the two ends of the balance plate are connected to the lugs via the chain.

[0011] The beneficial effects of this utility model are as follows: This invention provides a flat-pole type electromagnetic lifting device with a balancing function. It replaces the traditional design where electromagnets are directly connected to the main beam via chains with a flat-pole balancing mechanism. This mechanism allows for automatic adjustment of the positions of the electromagnets and the electromagnets themselves, ensuring that the electromagnet adsorption surfaces are no longer fixed to the same plane. This maximizes the contact area between the electromagnet adsorption surfaces and the steel surface during lifting, enabling the electromagnets to provide sufficient adsorption force to the steel. Simultaneously, the flat-pole balancing mechanism ensures equal force at each lifting point, preventing excessive localized stress and avoiding the risk of tilting or falling of the load, thus greatly improving operational safety. Attached Figure Description

[0012] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0013] The present invention will now be described in further detail with reference to the accompanying drawings.

[0014] Figure 1 This is a schematic diagram of the structure of a flat-pole type electromagnetic lifting device with balancing function according to an embodiment of the present invention; Figure 2 This is a schematic diagram of the structure of the hanger described in an embodiment of the present utility model; Figure 3 This is a schematic diagram of the support leg described in an embodiment of the present utility model; Figure 4 This is a diagram showing the connection structure between the flat-pole balancing mechanism and the electromagnet described in this embodiment of the utility model.

[0015] In the picture: 1. Main beam; 2. Hanger; 21. Hanger upright plate; 22. Hanger bearing seat; 23. Hanger stiffening plate; 24. Hanger base plate; 3. Main beam axle pin; 4. Cable connector; 5. Junction box; 6. Support leg; 61. Vertical support column; 62. Horizontal support column; 63. Support leg base plate; 7. Lifting point upright plate; 8. Carrying pole type balancing mechanism; 81. Carrying pole beam; 82. Carrying pole beam axle pin; 83. Balance plate; 84. Balance plate axle pin; 9. Chain; 10. Electromagnet. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model are within the protection scope of the present utility model.

[0017] like Figure 1-4 As shown, this utility model discloses a flat-pole type electromagnetic lifting device with balancing function, including a main beam 1. Two hangers 2 are symmetrically welded to the left and right sides of the upper end of the main beam 1. A junction box 5 is installed at the center of the front side of the main beam 1. Several cable connectors 4 are also installed on the front side of the main beam 1. Two symmetrically distributed support legs 6 are welded to the lower end of the main beam 1. Two symmetrically distributed lifting point plates 7 are also welded to the lower end of the main beam 1. The support legs 6 are located between the two lifting point plates 7. The lifting point plates 7 are hinged to a flat-pole type balancing mechanism 8 through flat-pole beam axle pins 82. The flat-pole type balancing mechanism 8 includes a flat-pole beam 81. The two ends of the flat-pole beam 81 are hinged to a balancing plate 83 through balancing plate axle pins 84. The two ends of the balancing plate 83 are connected to an electromagnet 10 through chains 9. The cable connectors 4 are located directly above the electromagnet 10. The electromagnet 10 is electrically connected to the cable connectors 4. The cable connectors 4 are electrically connected to the junction box 5.

[0018] In one specific embodiment of this application, the main beam 1 is provided with longitudinal stiffeners and transverse support plates, which together form a mesh-like bending-resistant structure, thereby improving the structural strength of the main beam 1.

[0019] In one specific embodiment of this application, the hanger 2 is welded from steel plates and is roughly in the shape of a herringbone. A rectangular groove is provided at the center of the bottom of the hanger base plate 24, and the two sides of the main beam 1 are clamped in the rectangular groove and welded together.

[0020] In one specific embodiment of this application, the support leg 6 is made of channel steel welded together, forming a stable V-shaped structure that is narrow at the top and wide at the bottom.

[0021] In a specific embodiment of this application, the flat-pole balancing mechanism 8 includes a flat-pole beam 81. The middle part of the flat-pole beam 81 is hinged to the suspension point plate 7 via a flat-pole beam axle pin 82. The two ends of the flat-pole beam 81 are hinged to the balance plates 83 via balance plate axle pins 84. The two balance plates 83 and the flat-pole beam 81 form an I-shaped structure. Each balance plate 83 is connected to an electromagnet 10. The flat-pole beam 81 uses the flat-pole beam axle pin 82 as a fulcrum to realize the automatic adjustment of the adsorption surface position between the two electromagnets 10. The balance plate 83 uses the balance plate axle pin 84 as a fulcrum to realize the adjustment of the adsorption surface position of the electromagnet 10 itself.

[0022] In one specific embodiment of this application, the upper end of the electromagnet 10 is symmetrically provided with two lifting lugs, and the two ends of the balance plate 83 are connected to the lifting lugs through the chain 9.

[0023] To facilitate understanding of the above technical solutions of the present invention, the following detailed description of the above technical solutions of the present invention will be provided through specific working principles.

[0024] The working principle of this invention is as follows: The spreader-type electromagnetic lifting device is installed on the lifting equipment via the main beam axle pin 3. Simultaneously, the junction box 5 is electrically connected to the crane. The junction box 5 is electrically connected to the electromagnet 10 via the cable connector 4, thereby providing power to the electromagnet 10. When the spreader-type electromagnetic lifting device is lifting steel with an uneven or tilted surface, the spreader-type balancing mechanism 8 is in a free state, allowing the electromagnets to make initial adaptive adjustments according to the shape of the steel surface. After the electromagnet 10 approaches the steel, it is energized and generates magnetic force, achieving adsorption of the steel. At this time, the spreader-type balancing mechanism 8, based on the actual situation of the steel surface, uses the lever principle of the spreader beam 81 and the balancing plate 83 to automatically adjust the relative positions of the electromagnets 10 and their own adsorption surfaces, ensuring that the adsorption surfaces of the electromagnets 10 always maintain the maximum contact area with the steel surface, resulting in stable and reliable adsorption force. Simultaneously, the spreader-type balancing mechanism 8 evenly distributes the weight of the steel to each electromagnet 10, significantly improving the stability and safety during the lifting process.

[0025] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A flat-pole type electromagnetic lifting device with balancing function, characterized in that, The structure includes a main beam (1), on which two hangers (2) are symmetrically welded on the left and right sides at the upper end. A junction box (5) is installed at the center of the front side of the main beam (1), and several cable connectors (4) are also installed on the front side of the main beam (1). Two symmetrically distributed legs (6) are welded to the lower end of the main beam (1), and two symmetrically distributed lifting point plates (7) are also welded to the lower end of the main beam (1). The legs (6) are located between the two lifting point plates (7), and the lifting point plates (7) are connected by a spreader beam axis. The pin (82) is hinged to the flat-pole balancing mechanism (8), which includes a flat-pole beam (81). The two ends of the flat-pole beam (81) are hinged to the balance plate (83) through the balance plate shaft pin (84). The two ends of the balance plate (83) are connected to the electromagnet (10) through the chain (9). The cable connector (4) is located directly above the electromagnet (10). The electromagnet (10) is electrically connected to the cable connector (4). The cable connector (4) is electrically connected to the junction box (5).

2. The flat-pole type electromagnetic lifting device with balancing function according to claim 1, characterized in that, The main beam (1) is provided with longitudinal stiffeners and transverse support plates inside, and the longitudinal stiffeners and transverse support plates form a mesh-like bending-resistant structure.

3. The flat-pole type electromagnetic lifting device with balancing function according to claim 1, characterized in that, The upper end of the hanger (2) is connected to the lifting equipment through the main beam axle pin (3). The hanger (2) is a herringbone structure welded from steel plates. The hanger (2) includes a hanger base plate (24). Two hanger upright plates (21) are welded in the middle of the hanger base plate (24). Hanger stiffeners (23) are welded on the outer side of the hanger upright plates (21). The upper end of the hanger upright plates (21) is provided with a hanger axle seat (22) that is compatible with the main beam axle pin (3).

4. A flat-pole type electromagnetic lifting device with balancing function according to claim 1, characterized in that, The support leg (6) is a figure-eight structure that is narrow at the top and wide at the bottom. The support leg (6) includes two vertical pillars (61), and several horizontal pillars (62) are connected between the two vertical pillars (61). The bottom of the vertical pillars (61) is welded with a support base plate (63).

5. A flat-pole type electromagnetic lifting device with balancing function according to claim 1, characterized in that, The flat-pole balancing mechanism (8) includes a flat-pole beam (81), the middle part of which is hinged to the lifting point plate (7) through a flat-pole beam axle pin (82), and the two ends of which are hinged to the balance plate (83) through the balance plate axle pin (84). The two balance plates (83) and the flat-pole beam (81) form an I-shaped structure.

6. A flat-pole type electromagnetic lifting device with balancing function according to claim 1, characterized in that, The electromagnet (10) has two symmetrical lugs at its upper end, and the two ends of the balance plate (83) are connected to the lugs by the chain (9).

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