Multifunctional gantry sling

Abstract

The utility model discloses a multifunctional gantry sling in the technical field of hoisting slings, which comprises a cross beam, a C-shaped hook component is arranged at the center of the bottom of the cross beam, connecting plates are connected to two ends of the inner top wall of the cross beam, and lead screws are connected to the two groups of connecting plates and the inner wall of the cross beam through bearings. Servo motors used for driving the lead screws to rotate are installed on the sides, close to the center of the cross beam, of the two connecting plates correspondingly, nuts are connected to the outer walls of the two lead screws in a threaded mode correspondingly, plate hook assemblies are arranged at the bottoms of the two nuts correspondingly, the bottoms of the two plate hook assemblies extend out of the cross beam, and through holes are formed in the two ends of the bottom of the cross beam correspondingly. According to the lifting appliance, the nut, the cross beam, the servo motor, the connecting plate and the screw rod are arranged in a matched manner, so that the distance between the two plate hook assemblies can be adjusted according to different sizes of steel ladles, the requirements of lifting the steel ladles with different sizes are met, and the universality of the lifting appliance is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of lifting slings, in particular to a multifunctional gantry sling. Background Art

[0002] Gantry crane is also called portal crane. It has the characteristics of high site utilization, large operating range, wide adaptability and strong versatility. At present, gantry crane is a special crane used for lifting molten iron and steel ladle in steel mills or foundries.

[0003] The Chinese utility model patent announcement number CN210884910U discloses a gantry crane for casting, including a gantry, a hook and a fixing mechanism, the gantry is arranged in parallel, the fixing mechanism is arranged in the middle of the upper side of the gantry, the two ends of the gantry are hinged with a connecting mechanism, one end of the connecting mechanism is hinged to the gantry, and the connecting mechanisms arranged at the two ends of the gantry are hinged to the hook; when lifting large objects, the hooks arranged at the two ends of the gantry act on the two ends of the object to be lifted, and during lifting, due to the force at both ends of the object, its balance is easier to grasp relative to the force in the middle, and the objects subjected to force at both ends are not easy to slide due to the change of force during the lifting process, thereby reducing the generation of danger during the lifting process, but the distance between the two plate hooks in the above-mentioned lifting device is fixed, and the plate hook can only lift the ladle corresponding to the spacing size between the two plate hooks. When the size of the ladle to be lifted does not correspond to the spacing size of the two plate hooks, the distance between the two plate hooks cannot be adjusted as needed, and the lifting device needs to be replaced, thereby reducing the universality of the lifting device. Utility Model Content

[0004] In order to improve the problem that the distance between the two plate hooks in the above-mentioned existing slings is fixed and cannot be adjusted according to needs, the slings need to be replaced, thereby reducing the universality of the slings, the utility model provides a multifunctional gantry sling.

[0005] The utility model provides a multifunctional gantry hanger, which adopts the following technical solutions:

[0006] A multifunctional gantry hoist comprises a crossbeam, wherein a C-shaped hook assembly is arranged at the center of the bottom of the crossbeam, connecting plates are connected to both ends of the inner top wall of the crossbeam, two groups of connecting plates and the inner wall of the crossbeam are connected with screw rods through bearings, servo motors for driving the screw rods to rotate are installed on one side of the two groups of connecting plates close to the center of the crossbeam, nuts are screwed on the outer walls of the two groups of screw rods, plate hook assemblies are arranged at the bottom of the two groups of nuts, the bottoms of the two groups of plate hook assemblies extend out of the crossbeam, and through holes are opened at both ends of the bottom of the crossbeam.

[0007] By adopting the above technical solution, the servo motor is started, and the servo motor drives the screw rod to rotate when working. The rotation of the screw rod drives the nut to move left and right. The left and right movement of the nut drives the plate hook assembly to move left and right, so as to facilitate the adjustment of the distance between the two plate hook assemblies. When the spacing between the two plate hook assemblies is adjusted to correspond to the size of the ladle to be lifted, the servo motor stops working, and the ear shaft of the ladle is hung by two sets of plate hook assemblies, so that the hoist can lift ladles of different specifications, thereby improving the practicability of the hoist.

[0008] Optionally, pulley blocks are installed at both ends of the top of the beam, and the two sets of pulley blocks are symmetrically distributed about the center of the beam.

[0009] By adopting the above technical solution, when the gantry crane is needed to lift an object, the crane drives the pulley block to move upward through the wire rope. The two sets of pulley blocks can share the weight of the object under the beam, thereby increasing stability during the lifting process.

[0010] Optionally, the C-type hook assembly includes two groups of side panels, and the two groups of side panels are symmetrically installed on the inner top wall of the crossbeam, the bottoms of the two groups of side panels extend out of the crossbeam and are penetrated by a connecting shaft, second baffles are sleeved on both sides of the connecting shaft, and the two groups of second baffles are respectively fitted and connected to the outer sides of the two groups of side panels, and choke plates are sleeved on the ends of both sides of the connecting shaft away from the second baffles, the two groups of choke plates are located between the two groups of side panels, and a C-type hook body is installed between the two groups of choke plates.

[0011] By adopting the above technical solution, when the object to be hoisted has only one ear shaft, the C-type hook body is connected to the ear shaft to hoist the object, and the side plate, the connecting shaft and the second baffle cooperate with each other to ensure the flexible rotation of the C-type hook body during use.

[0012] Optionally, a blocking piece is hinged at the opening of the C-shaped hook body, and a return spring is connected between the blocking piece and the C-shaped hook body.

[0013] By adopting the above technical solution, the baffle is pressed to compress the reset spring, the ear shaft is sleeved on the C-hook body, and then the baffle is released. Under the elastic force of the reset spring, the baffle abuts against one side of the C-hook body, effectively preventing the ear shaft inside the C-hook body from falling off.

[0014] Optionally, the plate hook assembly includes two groups of mounting plates, which are respectively mounted on the bottom of the two groups of nuts, one side of the two groups of mounting plates is connected to a rotating shaft, the outer sides of the two groups of rotating shafts are sleeved with lifting forks, the bottoms of the two groups of lifting forks extend out cross beams and are penetrated by rotating rods, the outer sides of the two groups of rotating rods are sleeved with plate hook bodies, the plate hook bodies are located between the lifting forks, first baffles are installed at both ends of the two groups of rotating rods, and the two groups of first baffles are respectively fitted and connected to the outer sides of the lifting forks.

[0015] By adopting the above technical solution, the plate hook body can swing along the length direction of the pulley block and also swing along the direction perpendicular to the crossbeam, thereby improving the flexibility of the plate hook body during use.

[0016] Optionally, a limiting assembly is provided on the top of the two groups of nuts, and the limiting assembly includes two groups of optical rods, the two groups of optical rods are respectively connected between the two groups of connecting plates and the inner walls of the crossbeam, the two groups of optical rods are arranged parallel to the two groups of screw rods, the outer walls of the two groups of optical rods are sleeved with sliding sleeves, and the bottoms of the two groups of sliding sleeves are respectively fixedly connected to the tops of the two groups of nuts.

[0017] By adopting the above technical solution, when the nut moves left and right, it can drive the sliding sleeve to slide along the polished rod, so that the nut can be limited to prevent the nut from rotating.

[0018] Optionally, both sides of the crossbeam are connected with hanging points.

[0019] By adopting the above technical solution, it can be used for electromagnetic suction cups.

[0020] In summary, the present invention has at least one of the following beneficial effects:

[0021] Through the coordinated arrangement of the nut, crossbeam, servo motor, connecting plate and screw rod, the distance between the two plate hook assemblies can be adjusted according to the different sizes of the ladles, thereby meeting the needs of hoisting ladles of different sizes and improving the universality of the hoist.

[0022] Through the coordinated setting of the plate hook assembly, the C-hook assembly and the lifting point, the steel ladle or the iron ladle is lifted by the plate hook assembly. When the lifted object has only one ear shaft, the C-hook assembly is used to lift the object, and the lifting point can be used for the electromagnetic suction cup, thereby increasing the diversity of the functions of the gantry spreader when in use. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0024] Figure 1 It is a cross-sectional structural schematic diagram of the utility model;

[0025] Figure 2 It is a side structural schematic diagram of the utility model.

[0026] In the figure: 1. pulley block; 2. nut; 3. plate hook assembly; 301. mounting plate; 302. rotating shaft; 303. lifting fork; 304. rotating rod; 305. first baffle plate; 306. plate hook body; 4. C-type hook assembly; 401. side plate; 402. connecting shaft; 403. second baffle plate; 404. choke plate; 405. C-type hook body; 4051. baffle plate; 4052. reset spring; 5. through hole; 6. crossbeam; 7. limit assembly; 701. light rod; 702. sliding sleeve; 8. servo motor; 9. connecting plate; 10. screw rod; 11. hanging point. DETAILED DESCRIPTION

[0027] The following is combined with Figure 1-2 The utility model is described in further detail.

[0028] Please refer to the attached figure in the instruction manual Figure 1 and Figure 2 The utility model provides an embodiment: a multifunctional gantry hoist, including a cross beam 6, a C-shaped hook assembly 4 is arranged at the center of the bottom of the cross beam 6, the C-shaped hook assembly 4 includes two groups of side panels 401, the two groups of side panels 401 are symmetrically installed on the inner top wall of the cross beam 6, the bottoms of the two groups of side panels 401 extend out of the cross beam 6 and are penetrated by a connecting shaft 402, both sides of the connecting shaft 402 are threadedly sleeved with a second baffle 403, the two groups of second baffles 403 are respectively fitted and connected to the outer sides of the two groups of side panels 401, the ends of both sides of the connecting shaft 402 away from the second baffle 403 are movably sleeved with a choke plate 404, the two groups of choke plates 404 are located between the two groups of side panels 401, and a C-shaped hook body 405 is fixedly installed between the two groups of choke plates 404. When the object to be hoisted has only one ear axis, the C-shaped hook body 405 is connected to the ear axis to hoist the object, and the C-shaped hook body 405 is ensured to rotate flexibly when in use through the cooperation between the side plate 401, the connecting shaft 402 and the second baffle 403. Both sides of the crossbeam 6 are connected with a hoisting point 11. It can be used for electromagnetic suction cups.

[0029] Please refer to the attached figure in the instruction manual Figure 1 A baffle 4051 is hinged at the opening of the C-shaped hook body 405, and a return spring 4052 is fixedly connected between the baffle 4051 and the C-shaped hook body 405. The baffle 4051 is pressed to compress the return spring 4052, and the ear shaft is sleeved on the C-shaped hook body 405. Then, the baffle 4051 is released, and under the elastic force of the return spring 4052, the baffle 4051 abuts against one side of the C-shaped hook body 405, effectively preventing the ear shaft inside the C-shaped hook body 405 from falling off.

[0030] Please refer to the attached figure in the instruction manual Figure 1 , pulley blocks 1 are fixedly installed at both ends of the top of the beam 6, and the two pulley blocks 1 are symmetrically distributed about the center of the beam 6. When the gantry hoist is needed to hoist an object, the crane drives the pulley blocks 1 upward through the wire rope, and the two pulley blocks 1 can share the weight of the object under the beam 6, increasing the stability during the hoisting process.

[0031] Please refer to the attached figure in the instruction manual Figure 1 , both ends of the inner top wall of the cross beam 6 are fixedly connected with connecting plates 9, and the two groups of connecting plates 9 and the inner wall of the cross beam 6 are rotatably connected with screw rods 10 through bearings. The two groups of connecting plates 9 are installed with servo motors 8 for driving the screw rods 10 to rotate on one side close to the center of the cross beam 6. The outer walls of the two groups of screw rods 10 are screwed with screw nuts 2, and the tops of the two groups of screw nuts 2 are provided with limit components 7. The limit components 7 include two groups of light rods 701, which are respectively connected between the two groups of connecting plates 9 and the inner wall of the cross beam 6. The two groups of light rods 701 are arranged parallel to the two groups of screw rods 10. The outer walls of the two groups of light rods 701 are slidably sleeved with sliding sleeves 702, and the bottoms of the two groups of sliding sleeves 702 are respectively fixedly connected with the tops of the two groups of screw nuts 2. When the screw nut 2 moves left and right, it can drive the sliding sleeve 702 to slide along the light rod 701, so that the screw nut 2 can be limited to prevent the screw nut 2 from rotating.

[0032] Please refer to the attached figure in the instruction manual Figure 1 and Figure 2The bottom of the two sets of screw nuts 2 are both provided with a hook assembly 3, which includes two sets of mounting plates 301, which are fixedly mounted on the bottom of the two sets of screw nuts 2, and one side of the two sets of mounting plates 301 is rotatably connected with a rotating shaft 302, and the outer sides of the two sets of rotating shafts 302 are both fixedly sleeved with a fork 303, and the bottoms of the two sets of forks 303 extend out of the crossbeam 6 and are penetrated with a rotating rod 304, and the outer sides of the two sets of rotating rods 304 are movably sleeved with a hook body 306, and the hook body 306 is located between the forks 303, and the two ends of the two sets of rotating rods 304 are both threadedly mounted with a first baffle 305, and the two sets of first baffles 305 are respectively connected to the outer sides of the forks 303. In this way, the hook body 306 can swing along the length direction of the pulley block 1, and can also swing along the direction perpendicular to the crossbeam 6, which improves the flexibility of the hook body 306 during use. The bottoms of the two sets of plate hook components 3 extend out of the cross beam 6 , and through holes 5 are formed at both ends of the bottom of the cross beam 6 .

[0033] Working principle: when it is necessary to lift the ladle, start the servo motor 8. When the servo motor 8 is working, it drives the screw rod 10 to rotate. The screw rod 10 rotates to drive the nut 2 to move left and right. When the nut 2 moves, it drives the sliding sleeve 702 to slide along the light rod 701, so that the nut 2 can be limited. The left and right movement of the nut 2 drives the plate hook assembly 3 to move left and right, which is convenient for adjusting the distance between the two plate hook assemblies 3. When the spacing between the two plate hook assemblies 3 is adjusted to correspond to the size of the ladle to be lifted, the servo motor 8 stops working and the plate hook body 306 is hung on the ear shaft of the ladle. The crane drives the pulley block 1 to move upward, and the pulley block 1 drives the crossbeam 6 to move upward, thereby driving the plate hook assembly 3 to move upward, and the plate hook assembly 3 lifts the ladle.

[0034] When the object to be hoisted has only one ear axis, first take out the first baffle plate 305 to release the fixing effect of the first baffle plate 305 on the rotating rod 304, then take out the rotating rod 304, so that the rotating rod 304 is separated from the plate hook body 306, and then the plate hook body 306 is disassembled, and then the C-type hook body 405 is connected to the ear axis to hoist the object with only one ear axis. Under the elastic force of the reset spring 4052, the baffle plate 4051 always abuts against one side of the C-type hook body 405, which can prevent the ear axis sleeved on the inner side of the C-type hook body 405 from falling off. At the same time, through the mutual cooperation of the side plate 401, the connecting shaft 402 and the second baffle plate 403, the flexible rotation of the C-type hook body 405 during use is guaranteed, and it can be used for an electromagnetic suction cup through the lifting point 11, so that the lifting device has multi-functionality, thereby improving the practicality of the lifting device.

[0035] The above are all preferred embodiments of the present utility model, and are not intended to limit the protection scope of the present utility model. Therefore, any equivalent changes made based on the structure, shape, and principle of the present utility model should be included in the protection scope of the present utility model.

Claims

1. A multifunctional gantry hanger, comprising a crossbeam (6), characterized in that: A C-shaped hook assembly (4) is arranged at the center of the bottom of the crossbeam (6), and connecting plates (9) are connected to both ends of the inner top wall of the crossbeam (6). The two groups of connecting plates (9) and the inner wall of the crossbeam (6) are connected to screw rods (10) via bearings. A servo motor (8) for driving the screw rod (10) to rotate is installed on one side of the two groups of connecting plates (9) close to the center of the crossbeam (6). The outer walls of the two groups of screw rods (10) are screwed with nuts (2). The bottoms of the two groups of nuts (2) are arranged with plate hook assemblies (3). The bottoms of the two groups of plate hook assemblies (3) extend out of the crossbeam (6), and through holes (5) are opened at both ends of the bottom of the crossbeam (6).

2. A multifunctional gantry hanger according to claim 1, characterized in that: Pulley blocks (1) are installed at both ends of the top of the crossbeam (6), and the two sets of pulley blocks (1) are symmetrically distributed about the center of the crossbeam (6).

3. A multifunctional gantry hanger according to claim 1, characterized in that: The C-shaped hook assembly (4) comprises two groups of side plates (401), the two groups of side plates (401) are symmetrically mounted on the inner top wall of the crossbeam (6), the bottoms of the two groups of side plates (401) extend out of the crossbeam (6) and are penetrated by a connecting shaft (402), the two sides of the connecting shaft (402) are sleeved with a second baffle plate (403), the two groups of the second baffle plates (403) are respectively fitted and connected to the outer sides of the two groups of side plates (401), the ends of the two sides of the connecting shaft (402) away from the second baffle plate (403) are sleeved with a choke plate (404), the two groups of the choke plates (404) are located between the two groups of side plates (401), and a C-shaped hook body (405) is installed between the two groups of the choke plates (404).

4. A multifunctional gantry hanger according to claim 3, characterized in that: A blocking piece (4051) is hingedly connected at the opening of the C-shaped hook body (405), and a return spring (4052) is connected between the blocking piece (4051) and the C-shaped hook body (405).

5. The multifunctional gantry hanger according to claim 1, characterized in that: The plate hook assembly (3) comprises two groups of mounting plates (301), the two groups of mounting plates (301) are respectively mounted on the bottom of the two groups of screw nuts (2), one side of the two groups of mounting plates (301) is connected to a rotating shaft (302), the outer sides of the two groups of rotating shafts (302) are sleeved with a lifting fork (303), the bottoms of the two groups of lifting forks (303) extend out of a crossbeam (6) and are penetrated by a rotating rod (304), the outer sides of the two groups of rotating rods (304) are sleeved with a plate hook body (306), the plate hook body (306) is located between the lifting forks (303), and first baffles (305) are mounted on both ends of the two groups of rotating rods (304), and the two groups of the first baffles (305) are respectively fitted and connected to the outer sides of the lifting forks (303).

6. The multifunctional gantry hanger according to claim 1, characterized in that: A limit assembly (7) is provided at the top of the two groups of screw nuts (2), and the limit assembly (7) comprises two groups of light rods (701). The two groups of light rods (701) are respectively connected between the two groups of connecting plates (9) and the inner wall of the crossbeam (6), and the two groups of light rods (701) are arranged in parallel with the two groups of screw rods (10). The outer walls of the two groups of light rods (701) are sleeved with sliding sleeves (702), and the bottoms of the two groups of sliding sleeves (702) are respectively fixedly connected to the tops of the two groups of screw nuts (2).

7. The multifunctional gantry hanger according to claim 1, characterized in that: Both sides of the crossbeam (6) are connected with hanging points (11).

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