Lifting device for efficiently and safely hoisting by annularly walking along arch-shaped garage roof

Abstract

The invention discloses a lifting device for efficiently and safely hoisting by annularly walking along an arch-shaped garage top, and belongs to the field of hoisting. The broken-line-shaped main beam is formed by installing and welding a horizontal beam section and a garage top arc-shaped tangent beam section, the driving wheel set is installed at the bottom of the tail end of the horizontal beam section and driven by a motor to walk in the annular direction of the garage top, and the driven wheel set is installed at the bottom of the head end of the garage top arc-shaped tangent beam section. The electric winch and the guide pulley block are installed above the arc-shaped tangent beam section of the garage top, and the central shaft is arranged on the head portion of the hanging horizontal beam section right in the center of the arch-shaped garage top. By means of the method, the steel silo wall plates and the wall plate reinforcing steel channels can be flexibly and accurately hoisted at the silo top position, in-place of the silo wall plates and the wall plate reinforcing steel channels by an auxiliary crane is omitted, and the hoisting efficiency is improved; the high-altitude manual operation risk is reduced, and the operation safety is improved; the hoisting device has the advantages of flexible hoisting position, high hoisting efficiency, safe operation, simple structure, definite stress, low cost, wide application range and high universality.

Description

Technical Field

[0001] This invention belongs to the technical field of lifting machinery, and more specifically, it is a lifting device that travels circumferentially along the top of an arched warehouse for efficient and safe hoisting. Background Technology

[0002] Large steel silos are widely used in industries such as cement, power, grain, and chemicals for storing powdery or granular materials. The installation process typically involves: first, completing the foundation construction and installing embedded parts; then, constructing the main frame of the silo roof; next, assembling the tens-of-meters-high dome (arched roof); finally, using a specialized lifting device to lift the dome (arched roof), ensuring the first layer of silo walls reaches the required hoisting height. The first layer of silo walls is then assembled by sequentially hoisting individual silo wall panels—that is, using a crane to lift each silo wall panel to its designated installation position for welding. After the main structure welding is completed, the reinforcing channel steel of the wall panels is hoisted for reinforcement welding. This process of hoisting, positioning, and welding is repeated until all the first layer of silo wall panels are in place. The reinforcing channel steel for the wall panels is brought to the welding area, where workers perform welding. Finally, a special lifting device is used to lift the first layer of reinforced silo wall panels, which are welded to the top of the silo, to the corresponding installation height for positioning and fixing. This process is repeated, and the steel silo wall panels and reinforcing channel steel required for assembling each layer of steel silo wall are hoisted into place according to their respective positions for assembly and welding. This process is repeated until the bottom layer of steel silo wall is in place and welded. Then, a special lifting device is used to lower the entire silo into the silo. Finally, a suspended platform is used to apply a surface coating for corrosion protection to the steel silo, completing the installation of the steel silo.

[0003] Since steel silo walls typically have many layers, and each layer contains a huge number of individual steel silo wall panels and reinforcing channel steels, it is necessary to hoist, position, weld, and reinforce these massive quantities of steel silo wall panels and reinforcing channel steels. Therefore, whether the massive quantities of steel silo wall panels and reinforcing channel steels can be hoisted efficiently and safely directly determines whether the entire steel silo wall and the large steel silo can be installed smoothly and efficiently.

[0004] Currently, the main methods for hoisting steel silo wall panels and reinforcing channel steel are as follows: First, using truck cranes or crawler cranes—that is, using large cranes for hoisting. This method is limited by the crane boom length and lifting height. For large or extra-high steel silos, cranes with extremely large tonnage are often required, resulting in high equipment rental costs. In addition, it requires high ground bearing capacity at the construction site, occupies a large area, is easily affected by other facilities around the silo, and has a long construction period. Second, building a temporary hoisting platform on the top of the silo—that is, building a temporary platform on the top of the already installed part of the silo and using electric winches, hand-operated hoists, etc. for hoisting. This method is inefficient, has poor safety, requires workers to frequently move and re-fix the hoisting points, has high labor intensity, and poses risks of working at height.

[0005] In summary, current technologies for hoisting steel silo wall panels and reinforcing channel steel suffer from several drawbacks, including high equipment costs, large footprint, stringent site requirements, low construction efficiency, high-altitude operations, high labor intensity, significant safety hazards, frequent worker relocation and re-fixing of hoisting points, and cumbersome operation. Therefore, there is an urgent need to design a hoisting device specifically designed for steel silo wall panel and reinforcing channel steel hoisting operations that can operate directly on the arched silo roof, is highly mobile, safe, efficient, and cost-effective. However, since the arched warehouse roof is an approximate truncated cone—that is, its sides are double-curved surfaces with an incline (curved in the height direction and also curved in the circumferential direction), and its top surface is a very small horizontal plane, it is much more difficult than the mobile trolleys that move on the same plane that we usually see. This is because the support surfaces are not in the same plane, and the movement trajectory is not a straight line. In addition to providing the trolley with forward power, it is also necessary to provide an upward pulling force to balance the component of the trolley's own weight to prevent the trolley from sliding down. Summary of the Invention

[0006] This invention addresses the shortcomings of existing technologies by providing a high-efficiency and safe hoisting device that travels circumferentially along the arched top of a silo. Utilizing this invention, steel silo wall panels and reinforcing channel steel can be precisely hoisted directly and flexibly at any desired location on the silo top, eliminating the need for auxiliary cranes to position the silo wall panels and reinforcing channel steel, thus significantly improving hoisting and installation efficiency. Simultaneously, the anti-tipping design and remote control operation of this invention minimize the risks of manual work at height, improving operational safety. Compared to traditional hoisting equipment, this invention also boasts advantages such as simple and reasonable structure, low cost, suitability for installing various specifications of steel silo wall panels and reinforcing channel steel, and strong versatility, making it a promising candidate for widespread application.

[0007] The objective of this invention can be achieved through the following technical solutions: This invention discloses a lifting device for efficient and safe hoisting along the circumferential path of an arched warehouse roof. The device comprises a zigzag main beam welded from horizontal beam segments and arc-shaped tangent beam segments at the warehouse roof. Because the horizontal beam segments are parallel to the horizontal plane of the warehouse roof, and the arc-shaped tangent beam segments are tangent to the side surface of the warehouse roof—a bidirectional arc surface with an incline and arcs in both the height and circumferential directions—the corners of the zigzag main beam and the angle between the side surface and the top surface of the warehouse roof are consistent. In other words, the shape of the zigzag main beam is designed based on the shape of the warehouse roof, which minimizes the center of gravity of the zigzag main beam and ensures that the heights of the active and passive wheel sets are as close as possible, thus ensuring stable movement. In conjunction with the active and passive wheel sets, it solves the problem of… This invention addresses the technical challenges of moving steel silo walls and reinforcing channels where the supporting surfaces are not on the same plane and the movement trajectory is not linear. Therefore, it enables efficient and flexible precise hoisting of steel silo wall panels and reinforcing channels directly at any desired location on the silo top, eliminating the need for auxiliary cranes for positioning the silo wall panels and reinforcing channels. This significantly improves hoisting and installation efficiency, offering advantages such as flexible hoisting positions, high hoisting efficiency, safe hoisting, simple and reasonable structure, low cost, wide applicability, and strong versatility. The active wheel assembly, installed at the bottom of the horizontal beam section and driven by a motor, moves circumferentially along the silo top. (Through the cooperation of the active and passive wheel assemblies, an anti-tipping structure is formed, jointly stabilizing and supporting the zigzag main beam, improving operational safety.) The surfaces together drive the zigzag main beam to move stably circumferentially along the arched silo top. In conjunction with the zigzag main beam, this invention solves the technical problem of movement when the supporting surfaces are not in the same plane and the trajectory is not linear. Therefore, this invention allows for efficient and flexible precise hoisting of steel silo wall panels and reinforcing channel steel at any desired location on the silo top, eliminating the need for auxiliary cranes to position the silo wall panels and reinforcing channel steel, greatly improving hoisting and installation efficiency. Simultaneously, the anti-tipping design combined with remote control operation minimizes the risks of manual high-altitude work, improving operational safety. It boasts advantages such as flexible hoisting positions, high hoisting efficiency, safe hoisting, simple and reasonable structure, low cost, wide applicability, and strong versatility. (The installation is carried out on the arc-shaped tangential beam on the silo top.) The passive wheel assembly, which moves synchronously along the circumference of the silo top with the rotation of the active wheel assembly, forms an anti-overturning structure with the active wheel assembly, jointly stabilizing and supporting the zigzag main beam, improving operational safety, and jointly driving the zigzag main beam to move stably along the circumference of the arched silo top. An electric winch and guide pulley assembly are installed above the arc-shaped tangent beam section on the silo top (the forward and reverse rotation of the electric winch controls the winding and unwinding of the lifting wire rope). The lifting wire rope (used for lifting components) is unwound from the electric winch, winds around the guide pulley assembly, and is connected to the lifting device. The central shaft of the horizontal beam section head is set at the very center of the arched silo top and is hung through a ring-shaped sleeve connector (the sleeve connector and the central shaft can rotate relative to each other after being coated with grease in the gap).In this way, the sleeve connector cooperates with the central shaft, providing an upward pulling force to the zigzag main beam to balance the component of the trolley's own weight and prevent the invention from sliding down. On the other hand, under the drive of the active wheel set and the cooperation of the passive wheel set, the zigzag main beam can smoothly and stably move around the arched top of the warehouse with the central shaft as the rotation center. It has the advantages of simple structure, clear force, smooth movement, safe operation, and cost saving. The remote control is connected to the motor and electric winch via electrical signals.

[0008] The sleeve connector described in this invention consists of a cylindrical sleeve, limiting and anti-detachment plates welded to the central shaft near the upper and lower ends of the cylindrical sleeve, and a double-hinged connecting plate that is looped around the outer surface of the cylindrical sleeve. The other end of the double-hinged connecting plate is welded to the head of the horizontal beam segment (through the combined action of the central shaft, sleeve connector, and double-hinged connecting plate nested from the inside to the outside, an upward pulling force is provided to the zigzag main beam to balance the component of the trolley's own weight, thus preventing the invention from sliding down and providing a safe premise for circumferential movement and normal hoisting). A gap for applying grease is reserved between the inner cavity of the cylindrical sleeve and the central shaft (the cylindrical sleeve is fitted onto the central shaft, and after applying grease to the gap between them, the cylindrical sleeve can rotate relative to the central shaft. In this way, the zigzag main beam, driven by the active wheel set and in cooperation with the passive wheel set, can smoothly and stably move circumferentially around the central shaft as the rotation center along the arched top of the warehouse).

[0009] In this invention, the electric winch is installed above the head of the arc-shaped tangent beam section on the top of the silo; the guide pulley block is installed above the tail of the arc-shaped tangent beam section on the top of the silo, and the vertical hoisting section after the hoisting wire rope passes through the guide pulley block does not interfere with the movement of the arc-shaped tangent beam section on the top of the silo, the top of the silo, or the steel silo wall (ensuring smooth hoisting).

[0010] The active wheel set and passive wheel set described in this invention are both composed of two traveling wheels connected by a trolley frame. The axle of one of the traveling wheels in the active wheel set is connected to a motor (the motor drives the active wheel set to rotate, and the active wheel set drives the passive wheel set to rotate synchronously. In this way, the active wheel set and the passive wheel set work together to drive the zigzag main beam to move stably around the arched silo top. This allows for efficient and flexible precise hoisting of the steel silo wall panels and wall panel reinforcing channel steel at any desired position on the silo top, eliminating the need for an auxiliary crane to position the silo wall panels and wall panel reinforcing channel steel, greatly improving hoisting and installation efficiency. At the same time, remote control operation can also minimize the risks of manual operation at height).

[0011] The design principle of this invention is as follows: This invention features a polygonal main beam welded from horizontal beam segments and a curved tangent beam segment at the top of the silo. Because the horizontal beam segments are parallel to the horizontal plane of the silo top, and the curved tangent beam segment at the top is tangent to the side surface of the silo top—that is, a bidirectional curved surface with an incline and curved in both the height and circumferential directions—the corners of the polygonal main beam and the angle between the side surface and the top surface of the silo top maintain consistency. In other words, the shape of the polygonal main beam is a contour design based on the shape of the silo top, which minimizes the center of gravity of the polygonal main beam and ensures that the heights of the active and passive wheel sets are as close as possible, guaranteeing stable movement. Specifically, the active wheel set, installed at the bottom of the rear end of the horizontal beam segment and driven by a motor, travels circumferentially along the silo top, while the passive wheel set, installed at the bottom of the front end of the curved tangent beam segment at the top, moves synchronously along the circumferentially along the silo top as the active wheel set rotates. The moving passive wheel sets work together to form an anti-tipping structure, jointly and stably supporting the zigzag main beam and improving operational safety. They also jointly drive the zigzag main beam to move stably circumferentially along the arched silo top. This solves the technical problem of movement when the support surfaces are not on the same plane and the trajectory is not linear. Therefore, this invention allows for efficient and flexible precise hoisting of steel silo wall panels and reinforcing channel steel at any desired location on the silo top, eliminating the need for auxiliary cranes to position the silo wall panels and reinforcing channel steel, greatly improving hoisting and installation efficiency. Simultaneously, the anti-tipping design combined with remote control operation minimizes the risks of manual high-altitude work, improving operational safety. It boasts advantages such as flexible hoisting positions, high hoisting efficiency, safe hoisting, simple and reasonable structure, low cost, wide applicability, and strong versatility.

[0012] Meanwhile, this invention also includes a sleeve connector with a ring at the center of the top of the storage tank to hang the central shaft of the horizontal beam section. The sleeve connector and the central shaft can rotate relative to each other after grease is applied through the gap. This interaction between the sleeve connector and the central shaft provides an upward pulling force to the zigzag main beam to balance the component of the trolley's own weight and prevent slippage. Furthermore, driven by the active wheel assembly and aided by the passive wheel assembly, the zigzag main beam can smoothly and stably move circumferentially around the central shaft as its rotation center along the arched storage tank top. This design offers advantages such as simple structure, clear force distribution, smooth movement, safe operation, and cost savings.

[0013] The beneficial technical effects of the present invention are as follows: This invention enables efficient and flexible precise hoisting of steel silo wall panels and reinforcing channel steel at any desired location on the silo top, eliminating the need for auxiliary cranes to position the silo wall panels and reinforcing channel steel, thus greatly improving hoisting and installation efficiency. Simultaneously, the anti-tipping design and remote control operation of this invention minimize the risks of manual work at heights, improving operational safety. Compared with traditional hoisting equipment, this invention also boasts advantages such as simple and reasonable structure, low cost, suitability for installing various specifications of steel silo wall panels and reinforcing channel steel, and strong versatility, making it a promising candidate for widespread application. Attached Figure Description

[0014] Figure 1 This is a simplified structural diagram and design principle diagram of the present invention.

[0015] Figure 2 It is a schematic diagram of the cross-sectional structure of the broken-line main beam and a schematic diagram of the connection between the broken-line main beam and the electric winch.

[0016] Figure 3 This is a structural schematic diagram of the main beam with its broken line shape, the sleeve connector, and the central shaft connection.

[0017] Part number descriptions in the diagram: 1. Broken-line main beam, 1-1. Horizontal beam segment, 1-2. Tangential arc-shaped beam segment of the warehouse top; 2. Driven wheel assembly; 3. Passive wheel assembly; 4. Electric winch; 5. Guide pulley block; 6. Lifting device; 7. Lifting wire rope; 8. Sleeve connector, 8-1. Cylindrical sleeve, 8-2. Limiting and anti-derailment plate, 8-3. Double hinge connecting plate; 9. Central shaft; 10. Arched warehouse top; 11. Grease. Detailed Implementation

[0018] The present invention will be further described below with reference to the accompanying drawings: like Figure 1 To ~ Figure 3As shown, the present invention provides a lifting device for efficient and safe hoisting along the circumferential movement of an arched warehouse roof. This device comprises a zigzag main beam 1 welded from a horizontal beam segment 1-1 and a zigzag tangent beam segment 1-2. Because the horizontal beam segment 1-1 is parallel to the horizontal plane of the warehouse roof, and the zigzag tangent beam segment 1-2 is tangent to the side surface of the warehouse roof—a bidirectional arc surface with an incline and arcs in both the height and circumferential directions—the corners of the zigzag main beam 1 and the angle between the side surface and the top surface of the warehouse roof are consistent. In other words, the shape of the zigzag main beam 1 is designed based on the shape of the warehouse roof, which can minimize the center of gravity of the zigzag main beam 1 and ensure that the heights of the active wheel set 2 and the passive wheel set 3 are as close as possible, ensuring stable movement. In conjunction with the active wheel set 2 and the passive wheel set 3, it solves the technical problem of movement where the support surfaces are not in the same plane and the movement trajectory is not linear. Therefore, this invention enables efficient and flexible precise hoisting of steel silo wall panels and reinforcing channel steel at any desired location on the silo top, eliminating the need for auxiliary cranes to position the silo wall panels and reinforcing channel steel, greatly improving hoisting and installation efficiency. It boasts advantages such as flexible hoisting positions, high hoisting efficiency, safe hoisting, simple and reasonable structure, low cost, wide applicability, and strong versatility. The active wheel set 2, installed at the bottom of the tail end of the horizontal beam segment 1-1 and driven by a motor, travels circumferentially along the silo top. (Through the cooperation of the active wheel set 2 and the passive wheel set 3, on the one hand, it forms an anti-tipping structure, jointly and stably supporting the zigzag main beam 1, improving operational safety; on the other hand, it jointly drives the zigzag main beam 1 to travel stably circumferentially along the arched silo top 10.) In conjunction with the zigzag main beam 1, it solves the technical problem of walking when the supporting surfaces are not in the same plane and the movement trajectory is not linear.Therefore, this invention enables efficient and flexible precise hoisting of steel silo wall panels and reinforcing channel steel at any desired location on the silo top, eliminating the need for auxiliary cranes to position the silo wall panels and reinforcing channel steel, greatly improving hoisting and installation efficiency. Simultaneously, the anti-tipping design, combined with remote control operation, minimizes the risks of manual high-altitude work, enhancing operational safety. It boasts advantages such as flexible hoisting positions, high hoisting efficiency, safe hoisting, simple and reasonable structure, low cost, wide applicability, and strong versatility. The passive wheel set 3, installed at the bottom of the head end of the arc-shaped tangent beam segment 1-2 on the silo top and moving synchronously along the circumferential direction of the silo top with the rotation of the active wheel set 2 (cooperating with the active wheel set 2 to form an anti-tipping structure, jointly stabilizing and supporting the zigzag main beam 1, improving operational safety, and jointly driving the zigzag main beam 1 to move stably circumferentially along the arched silo top 10), and the electric winch 4 and guide slide installed above the arc-shaped tangent beam segment 1-2 on the silo top... Wheel set 5 (controlling the winding and unwinding of the lifting wire rope 7 via the forward and reverse rotation of the electric winch 4), the lifting wire rope 7 (used for lifting components) unwound from the electric winch 4 and connected to the lifting device 6 after passing through the guide pulley set 5, the central shaft 9 of the horizontal beam segment 1-1, set at the center of the arched top of the warehouse and attached to the head of the horizontal beam segment 1-1 via a ring-shaped sleeve connector 8 (the sleeve connector 8 and the central shaft 9 can rotate relative to each other after grease 11 is applied in the gap. In this way, the sleeve connector 8 and the central shaft 9 cooperate with each other to provide an upward pulling force to the broken-line main beam 1 to balance the component of the trolley's own weight and prevent the invention from sliding down, and the broken-line main beam 1 can move smoothly and stably around the arched top of the warehouse 10 with the central shaft 9 as the rotation center under the drive of the active wheel set 2 and the cooperation of the passive wheel set 3. It has the advantages of simple structure, clear force, smooth movement, safe operation, and cost saving), and a remote control connected to the motor and the electric winch 4 via electrical signals.

[0019] The sleeve connector 8 described in this invention consists of a cylindrical sleeve 8-1, limiting and anti-detachment plates 8-2 respectively welded to the central shaft 9 near the upper and lower end faces of the cylindrical sleeve, and a double-hinged connecting plate 8-3 ringed around the outer surface of the cylindrical sleeve 8-1; the other end of the double-hinged connecting plate 8-3 is welded to the head of the horizontal beam segment 1-1 (through the combined action of the central shaft 9, sleeve connector 8, and double-hinged connecting plate 8-3 nested from the inside to the outside, an upward pulling force is provided to the zigzag main beam 1 to balance the weight of the trolley itself). The force component prevents the invention from sliding down, providing a safe premise for circumferential movement and normal hoisting; a gap for applying grease 11 is reserved between the inner cavity of the cylindrical sleeve 8-1 and the central shaft 9 (the cylindrical sleeve 8-1 is fitted onto the central shaft 9, and after applying grease 11 in the gap between the two, the cylindrical sleeve 8-1 can rotate relative to the central shaft 9. In this way, the zigzag main beam 1, driven by the active wheel set 2 and in cooperation with the passive wheel set 3, can move smoothly and stably circumferentially around the central shaft 9 as the rotation center along the arched top 10).

[0020] In this invention, the electric winch 4 is installed above the head of the arc-shaped tangent beam section 1-2 on the top of the silo; the guide pulley block 5 is installed above the tail of the arc-shaped tangent beam section 1-2 on the top of the silo, and the vertical hoisting section of the lifting wire rope 7 after passing through the guide pulley block 5 does not interfere with the movement of the arc-shaped tangent beam section 1-2 on the top of the silo, the top of the silo, or the steel silo wall (ensuring smooth hoisting).

[0021] In this invention, both the active wheel set 2 and the passive wheel set 3 are composed of two traveling wheels connected by a trolley frame. The axle of one of the traveling wheels in the active wheel set 2 is connected to a motor (the motor drives the active wheel set 2 to rotate, and the active wheel set 2 drives the passive wheel set 3 to rotate synchronously). In this way, the active wheel set 2 and the passive wheel set 3 work together to drive the zigzag main beam 1 to move stably around the arched warehouse top 10. This allows for efficient and flexible precise hoisting of the steel silo wall panels and wall panel reinforcing channel steel at any desired position on the warehouse top, eliminating the need for an auxiliary crane to position the warehouse wall panels and wall panel reinforcing channel steel, greatly improving hoisting and installation efficiency. At the same time, remote control operation can also minimize the risk of manual operation at height.

[0022] The specific uses of this invention are as follows: First, fix the central shaft 9 at the center of the top of the steel silo.

[0023] Then, the double hinge connecting plate 8-3 is looped around the outer surface of the cylindrical sleeve 8-1; the cylindrical sleeve 8-1 is fitted onto the central shaft 9, and grease 11 is applied to the gap between the two to ensure that they can rotate relative to each other; limiting and anti-detachment plates 8-2 are welded to the central shaft 9 near the upper and lower end faces of the cylindrical sleeve 8-1; and the other end of the double hinge connecting plate 8-3 is welded to the head of the horizontal beam segment 1-1.

[0024] Next, the active wheel assembly 2 and the passive wheel assembly 3 are assembled on the ground according to the relative positions described above and the attached drawings; the assembled active wheel assembly 2 and passive wheel assembly 3 are hoisted to the top of the warehouse and placed in the designated positions respectively.

[0025] Subsequently, based on the diameter of the steel silo to be installed, the fabricated arc-shaped tangent beam segment 1-2 of the silo top is adjusted to a position where it is longitudinally tangent to the side of the silo top—that is, tangent to the arc surface in the height direction of a bidirectional arc surface with an incline and arcs in both the height and circumferential directions. Simultaneously, the head end of the arc-shaped tangent beam segment 1-2 intersects with the outer end of the horizontal beam segment 1-1 parallel to the horizontal plane in the silo top and is then welded together. The resulting zigzag main beam 1 is designed based on the shape of the silo top, maximizing the reduction of the center of gravity of the zigzag main beam 1 and ensuring that the heights of the active wheel assembly 2 and the passive wheel assembly 3 are as close as possible, thus ensuring stable movement. During the welding process of the zigzag main beam 1, the perpendicularity of the active wheel assembly 2 and the passive wheel assembly 3 is carefully adjusted to ensure compliance with requirements. The zigzag-shaped main beam 1, in conjunction with the active wheel set 2 and the passive wheel set 3, solves the technical problem of walking when the support surfaces are not in the same plane and the movement trajectory is not straight. Thus, this invention enables efficient and flexible precise hoisting of steel silo wall panels and wall panel reinforcing channel steel at any desired position on the top of the silo, eliminating the need for auxiliary cranes to position the silo wall panels and wall panel reinforcing channel steel, greatly improving hoisting and installation efficiency. It has the advantages of flexible hoisting position, high hoisting efficiency, hoisting safety, simple and reasonable structure, low cost, wide applicability, and strong versatility.

[0026] Next, the electric winch 4 is installed above the head of the arc-shaped tangent beam section 1-2 on the top of the silo, and the guide pulley block 5 is installed above the tail of the arc-shaped tangent beam section 1-2 on the top of the silo. It is necessary to ensure that the vertical lifting section of the lifting wire rope 7 after passing through the guide pulley block 5 does not interfere with the movement of the arc-shaped tangent beam section 1-2 on the top of the silo, the top of the silo, or the steel silo wall, so as to ensure that the lifting can be carried out smoothly.

[0027] Finally, the steel silo wall panels or reinforcing channel steel can be hoisted normally. During operation, the steel silo wall panels or reinforcing channel steel to be installed are first hoisted to the ground near the outer edge of the silo. The motor is started using a remote control, which drives the active wheel assembly 2 to rotate. The active wheel assembly 2, in turn, drives the passive wheel assembly 3 to rotate synchronously. This coordinated movement of the active and passive wheel assemblies 2 and 3 propels the zigzag main beam 1 to move stably circumferentially along the arched silo top 10, efficiently and flexibly reaching the desired hoisting position on the silo top. The electric winch 4 is then started using a remote control to release the lifting wire rope 7, causing the lifting device 6 to descend. After the lifting device 6 is properly secured with the steel silo wall panel or reinforcing channel steel, the electric winch 4 is retracted using a remote control to perform the hoisting. More specifically, because the lifting device 6 is insufficient for the first and second layers of steel silo walls, an auxiliary crane is needed for the positioning and welding of the steel silo wall panels and reinforcing channel steel that assemble the first and second layers of steel silo walls. However, the auxiliary crane can then be discontinued, and the lifting device 6 can be used directly to lift the steel silo wall panels and reinforcing channel steel required for assembling the third, fourth, and lower layers of steel silo walls. Specifically, the lifting device 6 is used to lift the pre-cut and curved steel silo wall panels and reinforcing channel steel, which are placed at fixed points near the silo body, to the parts of the third-layer steel silo wall that require assembly and welding. Workers then perform the upper assembly and welding. After the steel silo wall panels are spot-welded, the lifting device 6 can return to the placement location of the steel silo wall panels for further lifting. The next two steel silo wall panels and their reinforcing channel steel are lifted and transported circumferentially to their designated positions for welding. This process is repeated to efficiently and safely install all the steel silo wall panels and reinforcing channel steel of the third layer into position. Once welded in place, the assembly of the third layer of the steel silo wall is complete. Then, dozens of hand-operated hoists or hydraulic jacks are used to lift the third layer of the steel silo wall until it reaches the required installation height. The lifting devices are then locked, and the third layer of the steel silo wall is fixed and welded. This process is repeated to assemble, lift, and install the fourth and subsequent layers of the steel silo wall, until the entire steel silo wall and its reinforcing channel steel are installed.

Claims

1. A lifting device for efficient and safe hoisting that travels circumferentially along the top of an arched warehouse, characterized in that: The lifting device includes a zigzag main beam (1) welded from a horizontal beam segment (1-1) and a tangential arc-shaped beam segment (1-2) at the top of the silo; an active wheel assembly (2) installed at the bottom of the tail end of the horizontal beam segment (1-1) and moving circumferentially along the top of the silo under the drive of a motor; a passive wheel assembly (3) installed at the bottom of the head end of the tangential arc-shaped beam segment (1-2) at the top of the silo and moving synchronously along the top of the silo as the active wheel assembly (2) rotates; an electric winch (4) and a guide pulley (5) installed above the tangential arc-shaped beam segment (1-2) at the top of the silo; a lifting wire rope (7) that unfolds from the electric winch (4), winds around the guide pulley assembly (5), and is connected to the lifting device (6); a central shaft (9) set at the center of the arched silo top and hung on the head of the horizontal beam segment (1-1) through a sleeve connector (8); and a remote control connected to the motor and the electric winch (4) via an electrical signal.

2. The lifting device for efficient and safe hoisting along the circumferential movement of the arched warehouse roof as described in claim 1, characterized in that: The sleeve connector (8) is composed of a cylindrical sleeve (8-1), a limiting anti-detachment plate (8-2) welded to the central shaft (9) near the upper and lower end faces of the cylindrical sleeve, and a double hinge connecting plate (8-3) that is sleeved on the outer surface of the cylindrical sleeve (8-1); the other end of the double hinge connecting plate (8-3) is welded to the head of the horizontal beam segment (1-1); a gap for applying grease is reserved between the inner cavity of the cylindrical sleeve (8-1) and the central shaft (9).

3. The lifting device for efficient and safe hoisting along the circumferential movement of the arched warehouse roof as described in claim 1, characterized in that: The electric winch (4) is installed above the head of the arc-shaped tangent beam section (1-2) on the top of the silo; the guide pulley block (5) is installed above the tail of the arc-shaped tangent beam section (1-2) on the top of the silo, and the vertical hoisting section after the hoisting wire rope (7) passes through the guide pulley block (5) does not interfere with the movement of the arc-shaped tangent beam section (1-2), the top of the silo, or the steel silo wall.

4. The lifting device for efficient and safe hoisting along the circumferential movement of the arched warehouse roof as described in claim 1, characterized in that: Both the active wheel set (2) and the passive wheel set (3) are composed of two traveling wheels connected by a trolley frame, and the axle corresponding to one of the traveling wheels in the active wheel set (2) is connected to the motor.

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