An electric rotating lifting device

Abstract

This utility model relates to the field of lifting equipment technology, specifically to an electric rotating lifting equipment, including a support base, the upper end of which is connected to a sling, and the lower end of which is connected to a rotating base. A rotation drive mechanism is installed between the rotating base and the support base to allow the rotating base to rotate relative to the support base about a vertical axis. A crossbeam is fixed to the lower end of the rotating base, and two slide blocks are slidably mounted on the crossbeam, each slide block fixing a downwardly extending hook arm. It also includes a column coaxially arranged with the rotating base, the upper end of which passes through the support base and is connected to a pull rope, and the lower end of which passes through a sliding cavity of the rotating base. The lower end of the column is rotatably connected to the upper ends of two pull rods, and the lower ends of the pull rods are rotatably connected to the upper ends of the hook arms. This utility model's lifting equipment can rotate electrically, eliminating the need for manual rotation, saving manpower and improving safety.

Description

Technical Field

[0001] This utility model relates to the field of lifting equipment technology, and in particular to an electric rotating lifting equipment. Background Technology

[0002] During the transfer of goods in ports or factories, lifting equipment is needed to grab the corresponding goods. As a type of lifting equipment specifically used for the transfer of steel coils, it generally has a crossbeam with two hook arms slidingly mounted on the crossbeam. The lower end of the hook arms has inwardly extending claws. The two hook arms can slide laterally to adjust the distance between the two claws, thereby allowing the claws to clamp or disengage from the inner ring surface of the steel coil.

[0003] However, in the above technical solution, during the actual hoisting of the steel coil, the lifting device needs to be rotated manually so that the two hooks are positioned at the two ends of the steel coil's axial direction. Additionally, the two hook arms need to be manually pushed to adjust the distance between the two hooks, and finally, locking bolts are used to slide the hook arms along the crossbeam.

[0004] In other words, operators need to manually stand below the lifting equipment to turn the spreader and adjust the distance between the hooks. This structural design makes the operation time-consuming and labor-intensive, and poses significant safety risks. Utility Model Content

[0005] This utility model provides an electric rotating lifting device that can solve at least one of the above-mentioned technical problems.

[0006] To solve the above-mentioned technical problems, one or more embodiments of this utility model provide an electric rotating lifting device, including a support base, the upper end of which is connected to a sling, and the lower end of which is connected to a rotating base. A rotating drive mechanism is installed between the rotating base and the support base to make the rotating base rotate relative to the support base about a vertical axis. A crossbeam is fixed to the lower end of the rotating base, and two slide blocks are slidably mounted on the crossbeam. A downwardly extending hook arm is fixed below each slide block. The device also includes a column coaxially arranged with the rotating base. The upper end of the column passes through the support base and is connected to a pull rope, and the lower end of the column passes through a sliding cavity of the rotating base. The lower end of the column is rotatably connected to the upper ends of two pull rods, and the lower ends of the pull rods are rotatably connected to the upper ends of the hook arms. The two pull rods are arranged in an inverted V-shape. The beneficial effects of the above one or more technical solutions are:

[0007] In this design, the support base and swivel of the lifting device are rotatably connected, and a rotary drive mechanism is installed between the swivel and the support base. This allows the hook arm under the swivel to rotate automatically using the rotary drive mechanism, eliminating the need for operators to manually rotate the hook arm to align it with the end face of the steel coil and improving worker safety.

[0008] Additionally, a column that can slide up and down is inserted at the central axis of the support base and the rotating base. The upper end of the column is connected to the lifting rope, and the lower end is rotatably connected to two pull rods. When the rope is pulled upward, the column moves upward, causing the pull rods to move upward, the angle between the two pull rods decreases, and the two hook arms are pulled closer together. When the rope loses power and no longer pulls the column, the column and pull rods move downward under their own weight. At this time, the angle between the two pull rods increases, and the two hook arms move away from each other.

[0009] In other words, this design facilitates the opening and closing of the hook arm using additional pull ropes, columns, and tie rods. This eliminates the need for corresponding drive mechanisms at the crossbeam and hook arm positions, reducing the probability of positional interference between the hook arm drive mechanism and the steel coil to be lifted while achieving automatic hook arm opening and closing. Attached image description:

[0010] Figure 1 This is a front view schematic diagram of the overall structure in an embodiment of this utility model;

[0011] Figure 2 This is a schematic diagram of the internal structure of the lifting device in an embodiment of this utility model;

[0012] Figure 3 This is a schematic diagram of the lifting device used to lift steel coils in an embodiment of this utility model.

[0013] In the diagram, 1. Hook; 2. Hook arm; 3. Rotating shaft; 4. Crossbeam; 5. Pull rod; 6. Slide seat; 7. Baffle; 8. Rotating seat; 9. Support seat; 901. Rotating plate; 10. Pull rope; 11. Motor; 12. First gear; 13. Second gear; 14. Rotating shaft; 15. Column; 16. Plug; 17. Auxiliary rope; 18. Roller frame; 19. Slide cavity; 20. Stop sleeve; 21. Steel coil. Detailed Implementation

[0014] To clearly illustrate the technical features of this solution, the present invention will be described in detail below through specific embodiments and in conjunction with the accompanying drawings.

[0015] See Figures 1-3This embodiment provides an electric rotating lifting device, including a support base 9, the upper end of which is connected to a sling (not shown in the figure), and the lower end of which is connected to a rotating base 8. A rotating drive mechanism is installed between the rotating base 8 and the support base 9 so that the rotating base 8 rotates relative to the support base 9 about a vertical axis. A crossbeam 4 is fixed to the lower end of the rotating base 8, and two slide blocks 6 are slidably installed on the crossbeam 4. A downwardly extending hook arm 2 is fixed below each slide block 6. The device also includes a column 15 coaxially arranged with the rotating base 8. The upper end of the column 15 passes through the support base 9 and is connected to a pull rope 10. The lower end of the column 15 passes through the sliding cavity 19 of the rotating base. The lower end of the column 15 is rotatably connected to the upper ends of two pull rods 5, and the lower end of the pull rods 5 is rotatably connected to the upper ends of the hook arms 2. The two pull rods 5 are arranged in an inverted V shape.

[0016] Specifically, a baffle 7 is fixed at each end of the crossbeam 4 by welding or bolting, which restricts the sliding block 6 to slide between the two baffles 7 and prevents the sliding block 6 from detaching from the crossbeam 4.

[0017] Specifically, the lower end of the pull rod 5 is rotatably connected to the support on the upper part of the hook arm 2 via the pivot 3, and the upper ends of the two pull rods 5 are rotatably connected to the column 15 via another pivot 14.

[0018] Specifically, when the column 15 is inserted into the central axis of the aforementioned rotating base 8 and support base 9, the column 15 can act as a rotation axis between the rotating base 8 and support base 9.

[0019] It should be noted that using slings and roller frame 18 to lift and lower the lifting device is existing technology in this field, and will not be described in detail here. Those skilled in the art can set it up themselves.

[0020] In this embodiment, a rotating plate 901 is fixed to the lower part of the support base 9. The rotating plate 901 is fixed to the housing of the motor 11. The output shaft of the motor 11 extends downward and is fixed coaxially with the first gear 12. A second gear 13 is fixed to the upper end of the rotating base 8. The first gear 12 and the second gear 13 mesh. At this time, the motor 11, the first gear 12 and the second gear 13 together form a rotary drive assembly.

[0021] In other embodiments, the rotary drive assembly may be a combination of the electric motor 11 and the synchronous pulley assembly, which can be configured by those skilled in the art.

[0022] In this embodiment, multiple auxiliary ropes 17 are distributed around the pull rope 10. One end of the auxiliary rope 17 is fixed to the upper part of the pull rope 10, and the other end is fixed to the bottom wall of the inner cavity of the rotator 8.

[0023] As can be seen, when the auxiliary rope 17 is used, after the pull rope 10 pulls the column 15 to its limit position, multiple auxiliary ropes 17 are tightened at the same time, and the auxiliary rope 17 prevents the pull rope 10 from further pulling the column 15 upward.

[0024] It should be noted that in this embodiment, the winding and unwinding of the rope 10 is achieved independently using components such as a winch. The winch can be installed on the lifting equipment above the lifting device, or it can be installed independently on the support base 9 of the lifting device.

[0025] In this embodiment, the column 15 is a stepped column, the center of the rotating seat 8 has a first hole, the center of the support seat 9 has a second hole, the inner diameter of the first hole is larger than the inner diameter of the second hole; the stepped column has a first column at the lower end and a second column at the upper end, the diameter of the first column is the same as the diameter of the first hole, and the diameter of the second column is the same as the diameter of the second hole.

[0026] When column 15 is a stepped column, it is also convenient to limit the upward movement of column 15 to the limit position, that is: when the first column moves upward to the end face of the second hole, it cannot continue to move to the second hole.

[0027] In this embodiment, the lower end of the column 15 has a plug 16, and the upper surface of the crossbeam 4 is provided with a flexible stop sleeve 20 that is directly opposite the plug 16.

[0028] Specifically, since the size of the plug 16 is smaller than that of the first post, a displacement sensor can be installed between the plug 16 and the stop sleeve 20 to determine whether the post 15 and the pull rod 5 have descended to their limit positions.

[0029] In this embodiment, the crossbeam 4 has a groove that runs through itself in the vertical direction so that the tie rod 5 can pass through.

[0030] As a specific structural form, the crossbeam 4 here includes a vertical Figure 1 Two plates are positioned opposite each other in the direction of the paper surface, and are fixed together by a connecting plate extending perpendicular to the direction of the paper surface. At this time, the interior of the crossbeam 4 is enclosed by the plates and the connecting plate to form a square groove.

[0031] In this embodiment, the lower end of the hook arm 2 has a hook claw 1 extending horizontally toward the inside of the lifting device, and the upper surface of the hook claw 1 has an elastic layer.

[0032] In this embodiment, the upper end of the support base 9 has two roller frames 18 arranged symmetrically in the transverse direction, and the roller frames 18 are used to connect the slings.

[0033] Specifically, the roller frame 18 here is used to pass through or fix the sling, which can be set by those skilled in the art, and will not be described in detail here.

[0034] In this embodiment, a camera is installed at the lower part of the crossbeam 4, and the camera is connected to the remote control terminal via signal.

[0035] Working principle: When using this device, the entire lifting device is first lowered using slings and roller frame 18, so that the lifting device is directly above the steel coil 21 to be lifted. Then, the rotation of motor 11 drives the entire structure, including the rotating base 8 and hook arm 2, to rotate around the vertical axis based on the support base 9, so that the vertical projection of hook arm 2 is located at both ends of the axial direction of the steel coil 21.

[0036] Then, the rope 10 is pulled to release the coil, causing the column 15 and the pull rod 5 to move downwards under the action of gravity. During the downward movement, the angle between the two pull rods 5 increases so that the distance between the two slides 6 and the hook arm 2 increases until the distance between the hook claws 1 on the two hook arms 2 is greater than the axial length of the steel coil 21.

[0037] This allows the slings and roller frame 18 to continue lowering the lifting device, ensuring that the hooks do not exceed the inner diameter of the steel coil 21.

[0038] Then the rope 10 is wound up, causing the column 15 and the pull rod 5 to move upward under the action of the rope 10. During the upward movement, the included angle of the two pull rods 5 becomes smaller so that the distance between the two slides 6 and the hook arm 2 becomes smaller, until the two hook claws 1 are locked in the inner hole of the steel coil 21, and the two hook arms 2 respectively stop against the end face of the steel coil 21.

[0039] The lifting equipment lifts the steel coil 21 to the required position by raising the slings and roller frame 18. Then, the lifting equipment lowers the lifting device and widens the distance between the two hook arms 2 to detach the lifting device from the steel coil 21.

[0040] The above specific embodiments should not be construed as limiting the scope of protection of this utility model. For those skilled in the art, any alternative improvements or modifications made to the embodiments of this utility model shall fall within the scope of protection of this utility model.

[0041] Any aspects of this utility model not described in detail are known to those skilled in the art.

Claims

1. An electrically powered rotary spreader characterized in that, It includes a support base, the upper end of which is connected to a sling, and the lower end of which is connected to a rotating base. A rotary drive mechanism is installed between the rotating base and the support base so that the rotating base rotates relative to the support base about a vertical axis. A crossbeam is fixed to the lower end of the rotating base, and two slide blocks are slidably installed on the crossbeam. A downwardly extending hook arm is fixed below each slide block. It also includes a column coaxially arranged with the rotating seat. The upper end of the column passes through the support seat and is connected to the pull rope. The lower end of the column passes through the sliding cavity of the rotating seat. The lower end of the column is rotatably connected to the upper ends of two pull rods respectively. The lower ends of the pull rods are rotatably connected to the upper ends of the hook arm. The two pull rods are arranged in an inverted V shape.

2. The electrically powered rotary spreader of claim 1, wherein, A rotating plate is fixed to the lower part of the support base. The rotating plate is fixed to the housing of the motor. The output shaft of the motor extends downward and is fixed coaxially with the first gear. A second gear is fixed to the upper end of the rotating base. The first gear meshes with the second gear.

3. The electrically powered rotary spreader of claim 1, wherein, Multiple auxiliary ropes are distributed around the pull rope. One end of each auxiliary rope is fixed to the upper part of the pull rope, and the other end is fixed to the bottom wall of the inner cavity of the rotator.

4. The electrically powered rotary spreader of claim 1, wherein, The column is a stepped column. The center of the rotating base has a first hole, and the center of the support base has a second hole. The inner diameter of the first hole is larger than the inner diameter of the second hole. The stepped column has a first column at the lower end and a second column at the upper end. The diameter of the first column is the same as the diameter of the first hole, and the diameter of the second column is the same as the diameter of the second hole.

5. The motorized rotary spreader of claim 1, wherein, The lower end of the column has a plug, and the upper surface of the crossbeam is provided with a flexible stop sleeve that is directly opposite the plug.

6. The electrically powered rotary spreader of claim 1, wherein, The crossbeam has a groove running vertically through itself to allow the tie rod to pass through.

7. The electric rotating lifting device according to claim 1, characterized in that, The lower end of the hook arm has a hook claw extending horizontally toward the inside of the lifting device, and the upper surface of the hook claw has an elastic layer.

8. The electric rotating lifting device according to claim 1, characterized in that, The upper end of the support has two roller frames arranged symmetrically in the transverse direction, which are used to connect the slings.

9. The electric rotating lifting device according to claim 1, characterized in that, A camera is installed at the lower part of the crossbeam, and the camera is connected to a remote control terminal.

Images