Lifting hook for steel coil lifting appliance

Abstract

The utility model belongs to the technical field of steel coil lifting appliances, and particularly relates to a lifting hook for a steel coil lifting appliance, which comprises a cross beam, two symmetrically distributed fixing lugs are fixedly connected to the upper end of the cross beam, a motor is fixedly mounted at the left end of the cross beam, and an output shaft of the motor is rotatably connected with the cross beam. An output shaft of the motor is fixedly connected with a right-hand and left-hand thread lead screw, and the right-hand and left-hand thread lead screw is rotationally connected with the cross beam. The two moving blocks can be driven to drive the lifting hook body to move and adjust the position of the lifting hook body under the action of structures such as the motor and the right-hand and left-hand threaded lead screws, so that steel coils and the like can be conveniently lifted subsequently, and the plugging column can be separated from the flow guide hole under the action of structures such as the electromagnet, the magnetic block and the second spring; and the lubricating oil is guided, so that the left-hand and right-hand thread lead screw and the moving block are lubricated, and the problem of hard abrasion is solved.

Description

Technical Field

[0001] This utility model relates to the field of steel coil lifting tools, specifically a hook for steel coil lifting tools. Background Technology

[0002] Steel coil lifting devices are specialized equipment used in the steel industry and logistics for the safe lifting of steel coils (hot-rolled and cold-rolled coils). The hook, as the core load-bearing component, directly affects lifting safety and efficiency. Among them, the double-hook lifting device features two symmetrical claws that clamp the inner hole of the steel coil via hydraulic or mechanical mechanisms.

[0003] The utility model patent with patent authorization announcement number CN2573464Y discloses a 25-ton horizontal beam double "L" shaped steel coil lifting device, which consists of a horizontal beam, pulley plate, S-shaped connecting plate, hook plate, pulley shaft and hand chain hoist.

[0004] However, existing hooks used for steel coil lifting devices also have certain shortcomings. Although existing hooks used for steel coil lifting devices use a combination of mechanical structures such as motors and screws to complete the movement and adjustment of the hook, the hard wear between the threads will cause problems of obstructed and unsmooth movement after long-term use. Utility Model Content

[0005] The purpose of this utility model is to provide a hook for steel coil lifting devices, which solves the problem that although existing hooks for steel coil lifting devices use mechanical structures such as motors and screws to complete the movement and adjustment of the hook, the movement becomes difficult and unsmooth after long-term use due to the hard wear between the threads.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a hook for a steel coil lifting device, comprising a crossbeam, two symmetrically distributed fixing lugs fixedly connected to the upper end of the crossbeam, a motor fixedly installed at the left end of the crossbeam, the output shaft of the motor being rotatably connected to the crossbeam, a positive and negative threaded screw fixedly connected to the output shaft of the motor, the positive and negative threaded screw being rotatably connected to the crossbeam, two evenly distributed moving blocks being threadedly connected to the outer side of the positive and negative threaded screw, each moving block being slidably connected to the crossbeam, a hook body being slidably connected to the inner wall of each moving block, and an installation mechanism being provided on each moving block;

[0007] Each of the moving blocks has an oil storage box fixedly connected to its upper end. The oil storage box is slidably connected to the crossbeam. A guide hole is opened at the lower end of the oil storage box. A sealing column is slidably connected to the inner wall of the guide hole. An end block is fixedly connected to the side of the sealing column. The end block is slidably connected to the oil storage box. Multiple end blocks are provided and symmetrically distributed on the sealing column. The end blocks are used for the subsequent installation of spring one, so that the sealing column is in a stable state. A spring one is fixedly connected to the lower end of the end block. The other end of the spring one is welded to the oil storage box. A magnetic block is fixedly connected to the upper end of the sealing column. An electromagnet is fixedly installed on the inner side wall of the oil storage box. The electromagnet is located directly above the magnetic block. The electromagnet can be used to magnetically attract the magnetic block. Through the cooperation of spring one and the sealing column, the guide hole can be blocked, so that the oil storage box is in a sealed state.

[0008] Preferably, the installation mechanism includes bolts, with the inner wall of the movable block movably connected to the bolts. The bolts are threaded to the hook body, and a limit hole is formed on the surface of the bolts. A mounting ear is fixedly connected to the end face of the movable block, and a limit rod is slidably connected to the inner wall of the mounting ear. The limit rod is slidably connected to the limit hole, and a connecting frame is fixedly connected to the side of the limit rod. The connecting frame contacts the bolts, and a second spring is welded to the horizontal part of the connecting frame. The other end of the second spring is welded to the mounting ear, and an end cap is fixedly connected to the upper end of the limit rod. By setting the bolts, the hook body can be locked in place. With the limit hole, limit rod, and other structures, the bolts can be limited, avoiding bolt vibration, deflection, and loosening.

[0009] Preferably, multiple limiting holes are provided, and the multiple limiting holes are arranged in a circular array on the limiting rod. The setting of the limiting holes facilitates the insertion and use of the limiting rod.

[0010] Preferably, the surface of the end has multiple opening slots, which are arranged in a circular array on the end. The opening slots improve the contact effect of the end and facilitate the movement of the limiting rod.

[0011] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0012] 1. This utility model can lock the hook body into the moving block by pushing the hook body into the moving block. Under the action of the bolt, the hook body can be locked in place. Under the action of the limiting hole, limiting rod, spring and other structures, the bolt can be inserted and limited, so that the bolt is stable and avoids the problems of bolt oscillation, deflection and loosening.

[0013] 2. This utility model, through the action of a motor, positive and negative threaded screws, etc., can drive two moving blocks to move the hook body and adjust the position of the hook body, which is convenient for subsequent hoisting of steel coils, etc. Under the action of electromagnets, magnetic blocks, springs, etc., the sealing column can be disengaged from the guide hole to guide the lubricating oil, thereby lubricating the positive and negative threaded screws and the moving blocks, so as to reduce the problem of hard wear. Attached Figure Description

[0014] Figure 1 This is a perspective view of the overall structure of this utility model;

[0015] Figure 2 For the present utility model Figure 1 A front sectional view;

[0016] Figure 3 For the present utility model Figure 1 Enlarged view of the installation mechanism;

[0017] Figure 4 For the present utility model Figure 2 Enlarged view of the oil storage box.

[0018] In the diagram: 1. Crossbeam; 2. Fixing lug; 3. Motor; 4. Positive and negative threaded screw; 5. Moving block; 6. Hook body; 7. Mounting mechanism; 8. Oil reservoir; 9. Guide hole; 10. Sealing column; 11. End block; 12. Spring 1; 13. Magnetic block; 14. Electromagnet; 71. Bolt; 72. Limiting hole; 73. Mounting lug; 74. Limiting rod; 75. Connecting frame; 76. Spring 2; 77. End. Detailed Implementation

[0019] 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. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] Please see Figure 1 , Figure 2 , Figure 3 , Figure 4A hook for lifting steel coils includes a crossbeam 1. Two symmetrically distributed fixed lugs 2 are fixedly connected to the upper end of the crossbeam 1. A motor 3 is fixedly installed at the left end of the crossbeam 1. The output shaft of the motor 3 is rotatably connected to the crossbeam 1. A positive and negative threaded screw 4 is fixedly connected to the output shaft of the motor 3. The positive and negative threaded screw 4 is rotatably connected to the crossbeam 1. Two evenly distributed moving blocks 5 are threadedly connected to the outer side of the positive and negative threaded screw 4. Each moving block 5 is slidably connected to the crossbeam 1. A hook body 6 is slidably connected to the inner wall of each moving block 5.

[0021] Please see Figure 1 , Figure 2 , Figure 4 Each movable block 5 is fixedly connected to an oil storage box 8 at its upper end. The oil storage box 8 is slidably connected to the crossbeam 1. A guide hole 9 is opened at the lower end of the oil storage box 8. A sealing column 10 is slidably connected to the inner wall of the guide hole 9. An end block 11 is fixedly connected to the side of the sealing column 10. The end block 11 is slidably connected to the oil storage box 8. A spring 12 is fixedly connected to the lower end of the end block 11. The other end of the spring 12 is welded to the oil storage box 8. A magnetic block 13 is fixedly connected to the upper end of the sealing column 10. Through the cooperation of the spring 12 and the sealing column 10, the guide hole 9 can be sealed, so that the oil storage box 8 is in a sealed state.

[0022] Please see Figure 1 , Figure 2 , Figure 4 Multiple end blocks 11 are provided, and the multiple end blocks 11 are symmetrically distributed on the sealing column 10. The end blocks 11 can be used for the subsequent installation of spring 12, so that the sealing column 10 is in a stable state. An electromagnet 14 is fixedly installed on the inner wall of the oil storage box 8. The electromagnet 14 is located directly above the magnetic block 13. The electromagnet 14 can be used to magnetically attract the magnetic block 13.

[0023] Please see Figure 1 , Figure 2 , Figure 3 Each movable block 5 is equipped with an installation mechanism 7, which includes a bolt 71. The inner wall of the movable block 5 is movably connected to the bolt 71, and the bolt 71 is threadedly connected to the hook body 6. A limit hole 72 is opened on the surface of the bolt 71. An installation ear 73 is fixedly connected to the end face of the movable block 5. A limit rod 74 is slidably connected to the inner wall of the installation ear 73. The limit rod 74 is slidably connected to the limit hole 72. A connecting frame 75 is fixedly connected to the side of the limit rod 74. The connecting frame 75 contacts the bolt 71. A second spring 76 is welded to the horizontal part of the connecting frame 75. The other end of the second spring 76 is welded to the installation ear 73. An end head 77 is fixedly connected to the upper end of the limit rod 74. The hook body 6 can be locked by the bolt 71. With the limit hole 72, limit rod 74 and other structures, the bolt 71 can be limited to avoid the bolt 71 from oscillating, deflecting and loosening.

[0024] Please see Figure 1 , Figure 2 , Figure 3 Multiple limiting holes 72 are provided, and the multiple limiting holes 72 are arranged in a ring array on the limiting rod 74. The setting of the limiting holes 72 facilitates the insertion and use of the limiting rod 74. Multiple opening slots are provided on the surface of the end 77, and the multiple opening slots are arranged in a ring array on the end 77. The setting of the opening slots can improve the contact effect of the end 77 and facilitate the movement of the limiting rod 74.

[0025] The specific implementation process of this utility model is as follows: In use, by pulling the end 77 upward, the limiting rod 74 is moved along the inner wall of the mounting ear 73, and the connecting frame 75 is moved, causing the second spring 76 to deform. Then, the hook body 6 is pushed into the moving block 5, and the bolt 71 is pushed through the moving block 5, so that the bolt 71 contacts the hook body 6. The bolt 71 is rotated, so that the bolt 71 makes threaded movement, thus installing the bolt 71 and locking the hook body 6. The end 77 is then released, so that the second spring 76 returns to its original deformation, thereby pushing the limiting rod 74 into the limiting hole 72 to limit the insertion of the bolt 71 and prevent the bolt 71 from oscillating, deflecting, or loosening.

[0026] The starter motor 3 drives the output shaft to rotate, which in turn drives the positive and negative threaded screws 4 to rotate. Under the threaded connection, the two moving blocks 5 can be driven to slide along the inner wall of the crossbeam 1, thereby moving the hook body 6 and adjusting the position of the hook body 6 to facilitate the subsequent hoisting of steel coils, etc. The electromagnet 14 magnetically attracts the magnetic block 13, causing the magnetic block 13 to move the sealing column 10, which in turn moves the end block 11, causing the spring 12 to deform. Finally, the sealing column 10 is disengaged from the guide hole 9. Under the action of the guide hole 9, the lubricating oil can flow, allowing the lubricating oil to contact the positive and negative threaded screws 4 and lubricate the threads to reduce hard wear.

[0027] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A hook for a coil lifter, comprising a crosspiece (1), characterised in that: The upper end of the crossbeam (1) is fixedly connected to two symmetrically distributed fixed ears (2). The left end of the crossbeam (1) is fixedly installed with a motor (3). The output shaft of the motor (3) is rotatably connected to the crossbeam (1). The output shaft of the motor (3) is fixedly connected to a positive and negative threaded screw (4). The positive and negative threaded screw (4) is rotatably connected to the crossbeam (1). The outer side of the positive and negative threaded screw (4) is connected to two evenly distributed moving blocks (5) by threads. Each moving block (5) is slidably connected to the crossbeam (1). The inner wall of each moving block (5) is slidably connected to a hook body (6). Each moving block (5) is provided with an installation mechanism (7). Each of the moving blocks (5) is fixedly connected to an oil storage box (8) at its upper end. The oil storage box (8) is slidably connected to the crossbeam (1). The lower end of the oil storage box (8) is provided with a guide hole (9). The inner wall of the guide hole (9) is slidably connected to a sealing column (10). The side of the sealing column (10) is fixedly connected to an end block (11). The end block (11) is slidably connected to the oil storage box (8). There are multiple end blocks (11). The multiple end blocks (11) are symmetrically distributed on the sealing column (10). The lower end of the end block (11) is fixedly connected to a spring (12). The other end of the spring (12) is welded to the oil storage box (8). The upper end of the sealing column (10) is fixedly connected to a magnetic block (13). An electromagnet (14) is fixedly installed on the inner side wall of the oil storage box (8). The electromagnet (14) is located directly above the magnetic block (13).

2. A lifting hook for a coil lifter according to claim 1, characterised in that: The installation mechanism (7) includes a bolt (71). The inner wall of the movable block (5) is movably connected to the bolt (71). The bolt (71) is connected to the hook body (6) by a thread. A limit hole (72) is opened on the surface of the bolt (71). An installation ear (73) is fixedly connected to the end face of the movable block (5). A limit rod (74) is slidably connected to the inner wall of the installation ear (73). The limit rod (74) is slidably connected to the limit hole (72). A connecting frame (75) is fixedly connected to the side of the limit rod (74). The connecting frame (75) is in contact with the bolt (71). A second spring (76) is welded to the horizontal part of the connecting frame (75). The other end of the second spring (76) is welded to the installation ear (73). An end head (77) is fixedly connected to the upper end of the limit rod (74).

3. A lifting hook for a coil lifter according to claim 2, characterised in that: Multiple limiting holes (72) are provided, and the multiple limiting holes (72) are arranged in a ring array on the limiting rod (74).

4. A lifting hook for a coil lifter according to claim 2, characterised in that: The surface of the end (77) is provided with a plurality of opening slots, which are arranged in a ring array on the end (77).

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