A crane hoist for aluminum rod production

Abstract

This utility model discloses a crane lifting device for aluminum rod production, relating to the field of aluminum rod lifting device technology. It includes a connecting frame, a horizontal plate, multiple lifting chains, multiple fixed rings, multiple main rings, and multiple auxiliary rings. The multiple lifting chains, fixed rings, main rings, and auxiliary rings correspond one-to-one. The horizontal plate is fixedly installed at the bottom of the connecting frame, and multiple lifting holes are evenly distributed on the horizontal plate. The multiple lifting chains are evenly arranged, with their upper ends hung on the horizontal plate through the lifting holes. This utility model flexibly connects adjacent fixed rings together with ropes. When an aluminum rod attempts to sway or rotate due to external force, its kinetic energy is transmitted and dispersed to other fixed rings through the connecting ropes. This interconnected system generates a "damping" effect, quickly absorbing and offsetting the swaying energy, thereby significantly reducing the overall swing amplitude during lifting and making the lifting process more stable and controllable.

Description

Technical Field

[0001] This utility model relates to the field of aluminum rod lifting tools, specifically a crane lifting tool used in aluminum rod production. Background Technology

[0002] In the production of aluminum rods, deep-well casting is commonly used. The cast aluminum rods are heavy and long, requiring cranes or other lifting equipment to transport them from the deep well to the subsequent processing area. Currently, the mainstream lifting method involves using multiple independent lifting rings, each connected to the crane hook by an independent chain. During operation, the lifting ring is first placed onto the aluminum rod. Upon lifting, because the chain is connected to the side of the lifting ring, the weight of the aluminum rod causes the ring to tilt against the surface of the rod, creating friction and thus achieving lifting.

[0003] However, in existing hoisting methods, each lifting ring and its associated chain are independently suspended and subjected to independent forces. During lifting, operation, or stopping, the lifting rings cannot coordinate their movements. When a single aluminum bar twists or sways due to vibration, its kinetic energy cannot be effectively counteracted or restrained, resulting in continuous and significant swaying of the aluminum bar in the air. This not only affects positioning accuracy and hoisting efficiency but also poses a safety threat to the crane structure, surrounding equipment, and personnel. Furthermore, the existing lifting rings are single closed-loop structures, and their contact and locking with the aluminum bar rely entirely on the self-locking effect of gravity and friction. In extreme conditions, such as when excessive swaying causes the lifting ring axis to approach the aluminum bar axis (a low-probability event that almost never occurs in actual work), relative sliding or even slippage between the lifting ring and the aluminum bar may occur, and the single closed-loop structure makes it difficult to quickly establish a self-locking effect between them. Utility Model Content

[0004] To address the aforementioned shortcomings of existing technologies, this utility model provides a crane lifting device for aluminum rod production. It flexibly connects two adjacent fixed rings together with ropes. When an aluminum rod attempts to sway or rotate due to external force, the kinetic energy generated is transmitted and distributed to other fixed rings through the connecting ropes. This interconnected system can generate a "damping" effect, quickly absorbing and offsetting the swaying energy, thereby significantly reducing the sway amplitude of the entire lifting process and making the lifting process more stable and controllable.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a crane lifting device for aluminum rod production, comprising a connecting frame, a horizontal plate, multiple lifting chains, multiple fixed rings, multiple main rings, and multiple auxiliary rings, wherein the multiple lifting chains, multiple fixed rings, multiple main rings, and multiple auxiliary rings correspond one-to-one. The horizontal plate is fixedly installed at the bottom of the connecting frame, and multiple lifting holes are evenly provided on the horizontal plate. The multiple lifting chains are evenly arranged and their upper ends are hung on the horizontal plate through the lifting holes. The fixed rings are hung on the lower ends of the lifting chains. The top of the main rings is rotatably connected to the bottom of the fixed rings. The auxiliary rings are installed at the bottom of the main rings through rotating parts and can rotate vertically with the main rings. A rope is provided between two adjacent fixed rings, and the length of the rope is equal to the distance between the fixed rings.

[0006] Preferably, the rotating component includes a fixed base, a connecting ear, a pin, a torsion spring, and a retaining ring. The fixed base is fixedly disposed at the bottom of the main ring, and the connecting ear is fixedly disposed at the top of the auxiliary ring. The pin passes through the fixed base and the connecting ear, allowing the auxiliary ring and the main ring to rotate vertically. The torsion spring is sleeved on the pin, with one end connected to the fixed base and the other end connected to the connecting ear. The torsion spring causes the main ring and the auxiliary ring to tend to be vertically arranged and form an "8" shape. The inner diameters of the main ring and the auxiliary ring are equal and larger than the diameter of the aluminum rod.

[0007] Preferably, a retaining ring is provided on the pin to ensure the axial stability of the pin.

[0008] Preferably, the rope is provided with hooks at both ends, the fixing ring is provided with hook rings on the side wall, and the hooks are attached to the hook rings.

[0009] Preferably, the number of lifting holes is greater than the number of lifting chains, and the lifting chains can be selectively hung on the lifting holes.

[0010] Preferably, the rope is made of nylon.

[0011] This utility model provides a crane lifting device for aluminum rod production, which has the following advantages: 1. This utility model flexibly connects two adjacent fixed rings together with ropes. When an aluminum rod attempts to shake or rotate due to external force, the kinetic energy it generates will be transmitted through the connecting ropes and distributed to other fixed rings. This interconnected system can produce a "damping" effect, quickly absorb and offset the shaking energy, thereby significantly reducing the swing amplitude of the entire hoisting process and making the hoisting process more stable and controllable. 2. In this utility model, the main ring and the auxiliary ring are rotatably connected, and the torsion spring makes them tend to be vertical to form an "8" shape. After being sleeved on the aluminum rod, the force of the torsion spring makes the main ring and the auxiliary ring always in contact with the side surface of the aluminum rod, making it difficult for the axis of the main ring to be close to the axis of the aluminum rod, reducing the possibility of relative displacement between the aluminum rod and the main ring, and further ensuring the stability of the self-locking effect. Attached Figure Description

[0012] Figure 1 This is a front view of a crane lifting device for aluminum rod production according to this utility model; Figure 2 This is a schematic diagram of the main ring and auxiliary ring of this utility model; Figure 3 This is a schematic diagram showing the tilting relationship between the main ring, auxiliary ring, and aluminum rod during hoisting of this utility model.

[0013] In the diagram: 1. Connecting frame; 2. Horizontal plate; 3. Lifting hole; 4. Lifting chain; 5. Fixing ring; 6. Main ring; 7. Auxiliary ring; 8. Rope; 9. Rotating component; 10. Hook; 11. Hook ring; 91. Fixing seat; 92. Connecting ear; 93. Pin; 94. Torsion spring; 95. Snap ring. Detailed Implementation

[0014] 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.

[0015] like Figure 1-3As shown, a crane lifting device for aluminum rod production includes a connecting frame 1, a horizontal plate 2, multiple lifting chains 4, multiple fixing rings 5, multiple main rings 6, and multiple auxiliary rings 7. The lifting chains 4, fixing rings 5, main rings 6, and auxiliary rings 7 correspond one-to-one. The horizontal plate 2 is fixedly mounted at the bottom of the connecting frame 1. Multiple lifting holes 3 are evenly distributed on the horizontal plate 2. The lifting chains 4 are evenly arranged, with their upper ends hung on the horizontal plate 2 through the lifting holes 3. The fixing rings 5 ​​are hung on the lower ends of the lifting chains 4. The top of the main rings 6 is rotatably connected to the bottom of the fixing rings 5. The auxiliary rings 7 are mounted at the bottom of the main rings 6 via rotating components 9 and can rotate vertically with the main rings 6. A rope 8 is provided between adjacent fixing rings 5, the length of which is equal to the distance between the fixing rings 5. The rotating component 9 includes a fixed base 91, a connecting lug 92, a pin 93, a torsion spring 94, and a retaining spring 95. The fixed base 91 is fixedly installed at the bottom of the main ring 6, and the connecting ear 92 is fixedly installed at the top of the auxiliary ring 7. The pin 93 passes through the fixed base 91 and the connecting ear 92, allowing the auxiliary ring 7 and the main ring 6 to rotate vertically. The torsion spring 94 is sleeved on the pin 93, with one end connected to the fixed base 91 and the other end connected to the connecting ear 92. The torsion spring 94 makes the main ring 6 and the auxiliary ring 7 tend to be vertically arranged and form an "8" shape. The inner diameters of the main ring 6 and the auxiliary ring 7 are equal and larger than the diameter of the aluminum rod. A retaining spring 95 is provided on the pin 93 to ensure the axial stability of the pin 93. Hooks 10 are provided at both ends of the rope 8, and hook rings 11 are provided on the side wall of the fixed ring 5. The hooks 10 are hung on the hook rings 11. The number of lifting holes 3 is greater than the number of lifting chains 4, and the lifting chains 4 can be selectively hung on the lifting holes 3. The rope 8 is made of nylon rope.

[0016] Its detailed connection methods are well-known technologies in this field. The following mainly introduces the working principle and process, as follows: According to the instruction manual Figure 1-3As can be seen, in this utility model, the connecting frame 1 is connected to the drive end of the trolley, which is existing technology, and the drive end can move vertically and horizontally. During operation, the utility model is moved to the deep well by the trolley drive. The auxiliary ring 7 and the main ring 6 are rotated and folded in half, with the auxiliary ring 7 at the bottom and the main ring 6 at the top, and together they are placed on the upper part of the aluminum rod, generally at the top quarter, and according to the principle of mechanics, the position should be higher than the center. Due to gravity and the pull of the lifting chain 4, the side of the main ring 6 and the auxiliary ring 7 away from the rotating part 9 is in an open state. When the trolley is working, the connecting frame 1, the horizontal plate 2, and the lifting chain 4 drive one side of the main ring 6 to lift upwards. The main ring 6 tilts and rubs against the surface of the aluminum rod, forming a self-locking effect, thereby hoisting the aluminum rod. Because the auxiliary ring 7 is subjected to gravity, it pulls the side of the main ring 6 away from the lifting chain 4 downwards. Therefore, the main ring 6 and the auxiliary ring 7 are always in contact with the side surface of the aluminum rod, making it difficult for the axis of the main ring 6 to be close to the axis of the aluminum rod. This reduces the possibility of relative displacement between the aluminum rod and the main ring 6, further ensuring the stability of the self-locking effect. It should be understood that if, due to shaking, the friction between the main ring 6 and the aluminum rod decreases at a certain time, causing displacement, then any displacement will pull the auxiliary ring 7, thereby generating tension. In this case, the auxiliary ring 7 and the aluminum rod may form a self-locking effect, meaning that the auxiliary ring 7 acts as a safety net for the main ring 6. In addition, this invention flexibly connects two adjacent fixed rings 5 ​​together with ropes 8. When an aluminum rod attempts to shake or rotate due to external force, the kinetic energy generated is transferred and dispersed to the other fixed rings 5 ​​through the connecting ropes 8. This interconnected system can produce a "damping" effect, quickly absorbing and offsetting the shaking energy, thereby significantly reducing the swing amplitude of the entire hoisting process and making the hoisting process more stable and controllable.

[0017] The rotating component 9 includes a fixed base 91, a connecting ear 92, a pin 93, a torsion spring 94, and a retaining spring 95. The fixed base 91 is fixedly installed at the bottom of the main ring 6, and the connecting ear 92 is fixedly installed at the top of the auxiliary ring 7. The pin 93 passes through the fixed base 91 and the connecting ear 92, allowing the auxiliary ring 7 and the main ring 6 to rotate vertically. The torsion spring 94 is fitted onto the pin 93, with one end connected to the fixed base 91 and the other end connected to the connecting ear 92. The torsion spring 94 causes the main ring 6 and the auxiliary ring 7 to be arranged vertically and form an "8" shape. The inner diameters of the main ring 6 and the auxiliary ring 7 are equal and larger than the diameter of the aluminum rod. During operation, the operator can rotate and fold the auxiliary ring 7 and the main ring 6, with the auxiliary ring 7 at the bottom and the main ring 6 at the top, and slip it onto the aluminum rod from the top. The force of the torsion spring 94 causes the side away from the rotating component 9 to open, thus tilting the main ring 6 and the auxiliary ring 92 so that they are both close to the aluminum rod. When lifted, friction is quickly generated, reducing the sliding distance. In addition, a retaining ring 95 is provided on the pin 93 to ensure the axial stability of the pin 93 and to facilitate disassembly and installation.

[0018] The rope 8 is equipped with hooks 10 at both ends and hook rings 11 on the side wall of the fixing ring 5. The hooks 10 are hung on the hook rings 11, which facilitates the installation and disassembly of the rope 8 and makes it easy to replace the rope 8 with one of appropriate length. The rope 8 can be made of nylon rope, which is low in cost.

[0019] The number of lifting holes 3 is greater than the number of lifting chains 4, and the lifting chains 4 can be selectively hung on the lifting holes 3, thus improving applicability.

[0020] 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 trolley hoist for aluminum bar production, characterized in that, The system includes a connecting frame (1), a horizontal plate (2), multiple lifting chains (4), multiple fixed rings (5), multiple main rings (6), and multiple auxiliary rings (7). The multiple lifting chains (4), multiple fixed rings (5), multiple main rings (6), and multiple auxiliary rings (7) correspond one-to-one. The horizontal plate (2) is fixedly installed at the bottom of the connecting frame (1). Multiple lifting holes (3) are evenly opened on the horizontal plate (2). Multiple lifting chains (4) are evenly arranged and their upper ends are hung on the horizontal plate (2) through the lifting holes (3). The fixed rings (5) are hung on the lower ends of the lifting chains (4). The top of the main ring (6) is rotatably connected to the bottom of the fixed ring (5). The auxiliary rings (7) are set at the bottom of the main ring (6) through a rotating part (9) and can rotate with the main ring (6) in the vertical direction. A rope (8) is provided between two adjacent fixed rings (5). The length of the rope (8) is equal to the distance between the fixed rings (5).

2. The overhead crane for aluminum rod production according to claim 1, characterized in that, The rotating component (9) includes a fixed base (91), a connecting ear (92), a pin (93), a torsion spring (94), and a retaining ring (95). The fixed base (91) is fixedly disposed at the bottom of the main ring (6), and the connecting ear (92) is fixedly disposed at the top of the auxiliary ring (7). The pin (93) passes through the fixed base (91) and the connecting ear (92) to enable the auxiliary ring (7) and the main ring (6) to rotate vertically. The torsion spring (94) is sleeved on the pin (93). One end of the torsion spring (94) is connected to the fixed base (91), and the other end is connected to the connecting ear (92). The torsion spring (94) makes the main ring (6) and the auxiliary ring (7) tend to be arranged vertically and form an "8" shape. The inner diameters of the main ring (6) and the auxiliary ring (7) are equal and larger than the diameter of the aluminum rod.

3. A crane lifting device for aluminum rod production according to claim 2, characterized in that, A retaining ring (95) is provided on the pin (93) to ensure the axial stability of the pin (93).

4. A crane lifting device for aluminum rod production according to claim 1, characterized in that, The rope (8) is provided with hooks (10) at both ends, and the fixed ring (5) is provided with hook rings (11) on its side wall. The hooks (10) are hung on the hook rings (11).

5. A crane lifting device for aluminum rod production according to claim 1, characterized in that, The number of lifting holes (3) is greater than the number of lifting chains (4), and the lifting chains (4) can be selectively hung on the lifting holes (3).

6. A crane lifting device for aluminum rod production according to claim 1, characterized in that, The rope (8) is made of nylon.

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