Special-shaped component batch hoisting device and method

Abstract

This invention discloses a batch hoisting device and method for irregularly shaped components, belonging to the field of engineering component hoisting technology. To address the problems of existing methods where irregularly shaped components are prone to tilting and swaying during hoisting due to center-of-gravity shift, posing safety hazards, and where batch hoisting and leveling are cumbersome and inefficient, this invention's device includes a conversion hoisting tool, a sling mechanism, a self-locking binding mechanism, load-bearing steel slings, and a directional steel sling. The conversion hoisting tool integrates guide wheels, pulley assemblies, and a rotatable directional lifting ring, with two sets of coaxial sling mechanisms below, equipped with a self-locking binding structure. The device adopts a design that separates load-bearing and directional functions, with the directional steel slings independently adjusting the center of gravity on the heavier side of the component. The hoisting method of this invention can quickly complete center-of-gravity leveling during the trial hoisting phase, enabling stable batch hoisting of irregularly shaped components of the same specifications without repeated adjustments to the hoisting tool and binding method, effectively avoiding the risks of component slippage, collision, and deformation, and significantly improving the safety and construction efficiency of batch hoisting of irregularly shaped components.

Description

Technical Field

[0001] This invention relates to the field of engineering component hoisting technology, and in particular to a device and method for batch hoisting of irregularly shaped components. Background Technology

[0002] In fields such as construction, bridge building, and machinery manufacturing, it is often necessary to process and install components with special shapes and irregular dimensions due to design requirements or on-site construction conditions. These irregularly shaped components present significant challenges to hoisting operations due to their asymmetrical structure and off-center center of gravity. Currently, the hoisting of irregularly shaped components mostly employs traditional lifting tools combined with manual binding, using simple steel cables and hooks for lifting. However, this method lacks the ability to precisely adjust the component's center of gravity. Especially during batch hoisting, because the components have similar shapes but fixed center of gravity distribution, the problem of uneven force on the lifting tools is particularly prominent, easily leading to tilting, swaying, or even slippage of the components after hoisting, posing significant safety hazards.

[0003] like Figure 1 The diagram illustrates a common irregularly shaped steel reinforcement component, comprising a straight section and a bent section at one end of the straight section. During batch hoisting of this component, the weight of the side with the bent section on the straight section is significantly greater than the side without the bent section, causing the overall center of gravity to shift towards the bent section side. When using traditional lifting equipment, the uneven stress on the slings causes the component to tilt towards the heavier end, affecting hoisting efficiency and potentially leading to collisions, deformation, and even safety accidents. While a balance beam can be used to assist in adjusting the balance, it is unsuitable for batches of irregularly shaped components of different sizes and with varying center of gravity shifts. Each hoisting operation requires adjustments to the lifting equipment structure and binding method, resulting in a lengthy preparation time.

[0004] To address the issue of center of gravity shift during the hoisting of irregularly shaped components, the common practice is to temporarily attach counterweights to the lighter side of the component to manually balance the center of gravity; or to use a multi-point hoisting method, adjusting the length of each sling to change the distribution of hoisting points.

[0005] However, the existing improvement solutions still have significant shortcomings. First, the method of temporarily adding counterweights is cumbersome, requiring repeated trial lifts and adjustments, and the counterweights are prone to loosening and falling off during hoisting, making safety difficult to guarantee. Second, the multi-point suspension method requires high precision in adjusting the slings, making it difficult to quickly and accurately find the optimal lifting point position in actual construction, especially when hoisting batches of the same type of irregularly shaped components, requiring readjustment each time, resulting in low efficiency. Furthermore, existing adjustable lifting point beams mostly rely on manual positioning and locking, with a limited adjustment range and poor adaptability to different center of gravity offsets, failing to achieve automatic or rapid centering, and the problems of component tilting and swaying have not been fundamentally solved.

[0006] Therefore, it is necessary to provide a hoisting device or method that can quickly adapt to the center of gravity shift of irregularly shaped components, achieve stable hoisting, and is suitable for batch operations, in order to overcome the above-mentioned defects in the prior art. Summary of the Invention

[0007] The technical problem to be solved by the present invention is to provide a batch hoisting device and method for irregularly shaped components, which is mainly used for batch hoisting of irregularly shaped components, so as to achieve rapid adjustment to achieve balance during the hoisting process, improve the hoisting efficiency of irregularly shaped components, and ensure the hoisting stability of irregularly shaped components.

[0008] This invention discloses a batch hoisting device for irregularly shaped components, including a conversion hoisting tool, a sling mechanism, a self-locking binding mechanism, a load-bearing steel cable, and a directional steel cable; the sling mechanism is provided in two parts and located below the conversion hoisting tool, and the self-locking binding mechanism is provided on the sling mechanism to lock the sling mechanism after the irregularly shaped components are bound;

[0009] The conversion lifting device includes a lifting device body, a hook connecting rod, a pulley assembly, and a directional lifting ring. With a spatial rectangular coordinate system as the reference system, the hook connecting rod is set at the top of the lifting device body along the z-axis, the pulley assembly is set on both sides of the lifting device body along the x-axis, and the directional lifting ring is set on any side of the lifting device body along the y-axis.

[0010] The end of the hook connecting rod away from the lifting device body is provided with a connecting hole for connecting with the crane hook, and the end of the hook connecting rod near the lifting device body is provided with a through hole. A guide wheel is provided in the through hole, and a guide groove is provided on the guide wheel for the load-bearing steel cable to pass through.

[0011] The pulley assembly includes a frame and pulleys. The frame is fixed on the lifting device body. The two pulleys are arranged parallel to each other in the frame along the x-axis direction. A channel for load-bearing steel cables to pass through is provided between the two pulleys.

[0012] The directional lifting ring includes a first rotating shaft and a first rope loop. The first rotating shaft is rotatably mounted on the lifting device body and rotates along itself. The first rope loop is rotatably mounted on the first rotating shaft.

[0013] One end of the directional steel cable is tied to the irregular component, and the other end passes through the first rope loop and is connected to the directional hook.

[0014] The lifting mechanism includes two circumferential lifting straps, which are coaxially arranged below the conversion lifting device along the x-axis. Each end of the circumferential lifting strap has an end block, and the end block is provided with a self-locking mechanism for self-locking and releasing the circumferential lifting strap. The top of the self-locking mechanism is provided with a second rotating shaft, which rotates around its own axis. A second rope loop for passing through a load-bearing steel lock is rotatably connected to the second rotating shaft.

[0015] The load-bearing steel cable passes sequentially through the guide groove of the hook connecting rod, the channel of the pulley assembly, and the second rope loop to connect the conversion lifting device and the sling mechanism.

[0016] Furthermore, the self-locking binding mechanism includes a lock body, a first slide rail, a second slide rail, and an automatic locking mechanism, with the second rotating shaft disposed at the top of the lock body;

[0017] The first slide rail is fixed to the top of one of the end blocks, and the second slide rail is fixed to the top of the other end block and is parallel to the first slide rail. The lock body is slidably mounted on the first and second slide rails and slides along the length of the first slide rail. The length of the first slide rail is at least twice that of the second slide rail, and the length of the second slide rail is greater than the length of the lock body. One end of the first and second slide rails is aligned, and each aligned end is provided with a stop for limiting the sliding of the lock body. The self-locking mechanism is located on the side of the lock body away from the stop and engages with the second slide rail to control the locking and unlocking of the circumferential sling.

[0018] In a preferred embodiment, the self-locking mechanism includes a base, a positioning block, a limiting slider, a locking block, and a spring. The locking block is located at the end of the second slide rail away from the stop block and has a diameter larger than the second slide rail. The positioning block is fixed on the lock body and located above the second slide rail. The limiting slider has a strip-shaped hole adapted to the positioning block and arranged along the length direction of the limiting slider. The strip-shaped hole is slidably connected to the positioning block. The base is located on the lock body and between the first and second slide rails. The spring is fixed between the base and the limiting slider to drive the limiting slider to slide towards the base. The limiting slider has a slot adapted to the locking block on the side near the first slide rail. When the locking block is in the slot, the lock body is fixed on the first slide rail. When the locking block is outside the slot, the lock body slides along the first slide rail.

[0019] As a preferred embodiment, both the first slide rail and the second slide rail include a strip block disposed on the top of the end block. The top of the strip block is provided with a cylinder with a diameter greater than the width of the strip block, and the bottom of the lock body is provided with a groove that is compatible with the first slide rail and the second slide rail.

[0020] As a preferred embodiment, a limiting plate is also provided at the end of the first slide rail away from the stop block.

[0021] Furthermore, the circumferential sling is made of a flexible material.

[0022] Furthermore, the two ends of the load-bearing steel cable are detachably connected to limit blocks, and the diameter of the limit blocks is larger than the diameter of the second rope loop.

[0023] This invention also discloses a method for batch hoisting of irregularly shaped components, which is implemented using a batch hoisting device for irregularly shaped components as described above, and includes the following steps:

[0024] S1. Bind the irregularly shaped components to be hoisted;

[0025] Adjust the circumferential slings to wrap around and secure a batch of irregularly shaped components. Use the self-locking binding mechanism to tighten the circumferential slings to secure the irregularly shaped components to be hoisted.

[0026] S2. Connects the conversion lifting device and the sling mechanism;

[0027] After passing the load-bearing steel cable through the hook connecting rod and pulley assembly of the conversion lifting device, connect it to the second rope loop on the lifting mechanism; tie one end of the directional steel cable to the side of the irregular component with the greater weight, and pass the other end through the first rope loop of the conversion lifting device to connect it to the directional hook;

[0028] S3. Connect the conversion spreader to the crane;

[0029] Connect the crane hook to the connection hole of the conversion spreader;

[0030] S4. Lifting balance adjustment;

[0031] Start the crane and slowly lift the lifting device, which will slowly raise the load-bearing steel cable, sling device and irregular component. Stop lifting when it is 10-20cm above the ground and observe the balance of the irregular component. If the irregular component tilts, adjust the center of gravity of the irregular component by tightening or loosening the adjusting steel cable by adjusting the adjusting hook until the irregular component is in a horizontal and balanced state.

[0032] S5. Batch hoisting and placement;

[0033] After adjusting the balance, start the crane to lift the batch of irregularly shaped components to the designated installation position. At the same time, observe the balance of the components. If there is a slight tilt, adjust the tightness of the directional steel cable to correct it. Lift the irregularly shaped components above the installation position, lower them slowly, adjust the position of the components, and stop the crane operation after the components are stably placed and fixed.

[0034] Furthermore, step S1 also includes:

[0035] S101. Align the end blocks at both ends of the circumferential sling, slide the lock body of the self-locking mechanism onto the first slide rail, and push the lock body along the first slide rail until the circumferential sling is tightened and fits the surface of the irregular component;

[0036] S102. Release the external force on the limit slider, the spring will automatically tighten, pushing the limit slider to slide until the limit slider engages with the locking block to lock the locking block, thereby locking the ring sling that is binding the irregularly shaped component to be hoisted.

[0037] Furthermore, equipment inspection and preparation are included before step S1;

[0038] Confirm that the conversion lifting device, sling mechanism, and self-locking binding mechanism are complete; adjust the circumferential sling length of the sling mechanism according to the size of the batch of irregularly shaped components to be lifted, and check the compatibility between the crane hook and the connection hole of the conversion lifting device.

[0039] The beneficial effects of this invention are as follows: By setting up a sling mechanism and a self-locking binding mechanism, this invention achieves rapid and reliable binding of batches of irregularly shaped components. The circumferential slings are made of flexible material, which can conform to the surface of the irregularly shaped components and avoid local compression damage; the self-locking binding mechanism uses springs to automatically lock, eliminating the need for repeated manual binding, making operation convenient and locking secure, effectively preventing components from loosening during hoisting. By cooperating with the switching lifting device and the load-bearing steel cable, the uniform transmission of lifting force is achieved. The load-bearing steel cable passes through the guide wheel and pulley assembly in sequence, using the pulley to reduce steel cable friction loss and avoid stress concentration; the two sling mechanisms are set coaxially to ensure symmetrical force distribution and improve hoisting stability. By setting up a directional steel cable and a directional lifting ring, the center of gravity position of the irregularly shaped components can be actively adjusted after hoisting. One end of the directional steel cable is connected to the heavier side of the component, and the other end is connected to manpower or a hook through a rotatable directional lifting ring. It can be flexibly tightened or loosened according to the tilt direction to achieve rapid centering and balance, completely solving the tilting and swaying problems caused by center of gravity shift in traditional hoisting. Attached Figure Description

[0040] Figure 1 : Irregularly shaped components to be hoisted.

[0041] Figure 2 Schematic diagram of a bulk hoisting device for irregularly shaped components.

[0042] Figure 3 : Schematic diagram of the connection between the conversion lifting device and the lifting sling mechanism.

[0043] Figure 4 : Structural diagram of the conversion lifting device.

[0044] Figure 5 : Structural diagram of the sling mechanism.

[0045] Figure 6 : Schematic diagram of the self-locking mechanism.

[0046] Figure 7 : Front view of the self-locking mechanism.

[0047] Figure 8 : A schematic diagram of the bottom of the lock body.

[0048] Reference numerals: 1-Converting lifting device; 11-Lifting device body; 12-Hook connecting rod; 121-Connecting hole; 122-Through hole; 123-Guide wheel; 124-Guide groove; 13-Pulley assembly; 131-Frame; 132-Pulley; 133-Channel; 14-Adjusting lifting ring; 141-First rotating shaft; 142-First rope loop; 2-Sling mechanism; 21-Circular sling; 22-End block; 23-Second rotating shaft ; 24-Second rope ring; 3-Binding self-locking mechanism; 31-Lock body; 32-First slide rail; 321-Limiting plate; 33-Second slide rail; 34-Stop block; 35-Self-locking mechanism; 351-Base; 352-Positioning block; 353-Limiting slider; 354-Slot; 355-Strip hole; 356-Locking block; 357-Spring; 4-Load-bearing steel cable; 41-Limiting block; 5-Directional steel cable; 6-Irregular component. Detailed Implementation

[0049] The present invention will be further described below.

[0050] This invention provides a batch lifting device for irregularly shaped components, mainly used for batch lifting of irregularly shaped components. It includes a conversion lifting device 1, a sling mechanism 2, a self-locking binding mechanism 3, a load-bearing steel sling 4, and a directional steel sling 5. Two sling mechanisms 2 are provided and located below the conversion lifting device 1. The self-locking binding mechanism 3 is installed on the sling mechanism 2 to lock the sling mechanism 2 after the irregularly shaped components are bound. The conversion lifting device 1 includes a lifting device body 11, a hook connecting rod 12, a pulley assembly 13, and a directional lifting ring 14. Using a spatial rectangular coordinate system as a reference system, the hook connecting rod 12 is located at the top of the lifting device body 11 along the z-axis. The pulley assembly 13 is arranged on both sides of the lifting device body 11 along the x-axis direction, and the directional lifting ring 14 is arranged on either side of the lifting device body 11 along the y-axis direction. The hook connecting rod 12 has a connecting hole 121 at its end away from the lifting device body 11 for connecting with a crane hook, and a through hole 122 at its end near the lifting device body 11. A guide wheel 123 is provided in the through hole 122, and a guide groove 124 is provided on the guide wheel 123 for the load-bearing steel cable 4 to pass through. The pulley assembly 13 includes a frame 131 and pulleys 132, with the frame 131 fixed to the lifting device. On the main body 11, two pulleys 132 are arranged parallel to each other along the x-axis within the frame 131, and a channel 133 is provided between the two pulleys 132 for the load-bearing steel cable 4 to pass through; the directional lifting ring 14 includes a first rotating shaft 141 and a first rope loop 142, the first rotating shaft 141 is rotatably mounted on the lifting body 11 and rotates along itself, and the first rope loop 142 is rotatably mounted on the first rotating shaft 141; one end of the directional steel cable 5 is tied to the irregular component, and the other end passes through the first rope loop 142 and is connected to the directional lifting hook; the lifting strap mechanism 2 includes a circumferential lifting strap 21, and two circumferential lifting straps 21 are connected to the directional lifting hook. The sling 21 is coaxially positioned below the conversion lifting device 1 along the x-axis direction; both ends of the circumferential sling 21 are provided with end blocks 22, and the end blocks 22 are provided with a self-locking mechanism 3 for self-locking and releasing the circumferential sling 21; the top of the self-locking mechanism 3 is provided with a second rotating shaft 23, which rotates around its own axis, and a second rope loop 24 for the load-bearing steel sling to pass through is rotatably connected to the second rotating shaft 23; the load-bearing steel sling 4 passes sequentially through the guide groove 124 of the hook connecting rod 12, the channel 133 of the pulley assembly 13, and the second rope loop 24 to connect the conversion lifting device 1 and the sling mechanism 2.

[0051] like Figures 2-8 As shown, this bulk hoisting device for irregularly shaped components is used for hoisting components such as... Figure 1The illustrated batch of irregularly shaped components includes a straight section and a bent section at one end of the straight section, with the overall center of gravity biased towards the bent section. The batch lifting device for these irregularly shaped components includes a conversion lifting device 1, a sling mechanism 2, a self-locking binding mechanism 3, a load-bearing steel cable 4, and a directional steel cable 5. Two sling mechanisms 2 are located below the conversion lifting device 1. The self-locking binding mechanism 3 is mounted on the sling mechanisms 2 to lock the sling mechanisms 2 after the irregularly shaped components are bound. The conversion lifting device 1 serves as the main load-bearing frame of the entire device, connected to a crane above and suspended by the load-bearing steel cable 4 below by the two sling mechanisms 2. The two sling mechanisms 2 provide more stable support at two lifting points when batch lifting long, narrow, or large irregularly shaped components, preventing twisting along the length of the component. The self-locking binding mechanism 3 is directly mounted on the sling mechanisms 2, replacing the traditional manual binding method and significantly improving the binding efficiency and reliability during batch lifting. The conversion lifting device 1 includes a lifting device body 11, a hook connecting rod 12, a pulley assembly 13, and a directional lifting ring 14. Using a spatial rectangular coordinate system as a reference, the hook connecting rod 12 is positioned along the z-axis to ensure the lifting force is vertically upward, avoiding horizontal force components. The pulley assembly 13 is positioned on both sides along the x-axis, providing symmetrical guide channels 133 for the load-bearing steel cable 4 in the lateral direction, ensuring balanced force on both sides. The directional lifting ring 14 is positioned along the y-axis, independent of the load-bearing path, and is specifically used to adjust the center of gravity tilt. All three components operate independently, achieving functional separation of "load-bearing" and "directional adjustment." A connecting hole 121 is located at the top of the hook connecting rod 12, directly connecting to the crane hook, resulting in a simple structure and reliable connection. A through hole 122 is provided at the end of the hook connecting rod 12 near the lifting device body 11, housing a guide wheel 123. The guide wheel 123 has a guide groove 124 through which the load-bearing steel cable 4 passes. The guide wheel 123 converts sliding friction into rolling friction, significantly reducing cable wear; the guide groove 124 restricts the lateral swing of the cable, improving lifting stability. The frame 131 is fixed to the lifting device body 11, providing rigid support for the pulleys 132. The two pulleys 132 are arranged in parallel, forming a narrow channel 133 between them, through which the load-bearing cable 4 passes. The parallel arrangement of the two pulleys 132 can limit the left and right movement of the cable, preventing it from coming off the side of the pulleys 132 when the force is uneven; at the same time, the two pulleys 132 share the pressure of the cable, extending the service life of the pulleys 132. The first rotating shaft 141 can rotate 360 ​​degrees around its own axis; the first rope loop 142 is sleeved on the first rotating shaft 141 and can swing 180 degrees relative to the rotating shaft. This "double rotation" degree of freedom design allows the first rope loop 142 to always automatically align with the direction of the tension of the cable 5, ensuring a smooth adjustment process without additional resistance. The directional steel cable 5 is separate from the load-bearing steel cable 4 and is specifically used for center of gravity adjustment. One end is directly tied to the heavier side of the irregular component, i.e., the side where the bending section is located, and the other end passes through the first rope loop 142 and is connected to the directional hook.When a component tilts, the operator can adjust the center of gravity by tightening or loosening the directional hook, achieving real-time, manually controllable adjustment. Two circumferential slings 21 are coaxially arranged to ensure that batches of components do not twist during lifting. The flexible sling uses a rigid end block 22 as an adapter to mount the locking mechanism, retaining the sling's flexible fit while providing a stable mounting base 351 for the locking mechanism. The second rotating shaft 23 and the second rope loop 24 also possess dual rotational degrees of freedom, preventing torsional stress on the steel cable during lifting. The load-bearing steel cable 4 passes sequentially through the guide groove 124 of the hook connecting rod 12, the channel 133 of the pulley assembly 13, and the second rope loop 24 to connect the conversion lifting device 1 and the sling mechanism 2. The passage path of the load-bearing steel cable 4 forms multi-point support, distributing the force to multiple components and avoiding stress concentration. At the same time, it ensures that the load-bearing steel cables 4 on both sides of the conversion lifting device 1 are always in a taut state. Even if the center of gravity of the component shifts, the steel cables on both sides can automatically adjust the tension distribution to achieve a certain degree of adaptive balance. This batch lifting device for irregularly shaped components separates the load-bearing path from the directional path. Through the combination of the pulley assembly 13, the guide wheel 123, and the double rotating rope loop, it significantly reduces steel cable wear and twisting. At the same time, through two independent sling mechanisms 2 and the self-locking binding mechanism 3, it achieves rapid and reliable binding of batches of irregularly shaped components.

[0052] The aforementioned self-locking binding mechanism can specifically adopt, for example, Figures 5-8Specifically, the self-locking binding mechanism 3 includes a lock body 31, a first slide rail 32, a second slide rail 33, and a self-locking mechanism 35. The second rotating shaft 23 is disposed on the top of the lock body 31. The first slide rail 32 is fixed on the top of one end block 22, and the second slide rail 33 is fixed on the top of the other end block 22 and is parallel to the first slide rail 32. The lock body 31 is slidably disposed on the first slide rail 32 and the second slide rail 33 and slides along the length direction of the first slide rail 32. The length of the first slide rail 32 is at least twice that of the second slide rail 33, and the length of the second slide rail 33 is greater than the length of the lock body 31. One end of the first slide rail 32 and the second slide rail 33 are aligned, and each aligned end is provided with a stop 34 for limiting the sliding of the lock body 31. The self-locking mechanism 35 is disposed on the side of the lock body 31 away from the stop 34 and engages with the second slide rail 33 to control the locking and unlocking of the circumferential sling 21. The first slide rail 32 and the second slide rail 33 are respectively fixed on the two end blocks 22. The double-rail guide ensures the stability of the sliding of the lock body 31. When the lock body 31 slides along the first slide rail 32 and slides onto the second slide rail 33 and abuts against the stop block 34, the two ends of the circumferential sling 21 are connected. Then, the lock body 31 is fixed by the self-locking mechanism 35 to tighten the circumferential sling 21 and securely bind the batch of irregularly shaped components to be lifted. When the lock body 31 slides along the first slide rail 32 and slides to the part of the first slide rail 32 that is longer than the second slide rail 33, the lock body 31 detaches from the second slide rail 33, so that the two ends of the circumferential sling 21 separate, thereby loosening the circumferential sling 21 binding the batch of irregularly shaped components to be lifted. The double-rail sliding locking structure realizes that the stroke of the circumferential sling 21 is adjustable and the locking position is controllable. The operator only needs to push the lock body 31 to the appropriate position to complete the tightening of the sling, without the need for repeated trial binding.

[0053] As a preferred method, such as Figure 6 , Figure 7The structure shown specifically includes a self-locking mechanism 35 comprising a base 351, a positioning block 352, a limiting slider 353, a locking block 356, and a spring 357. The locking block 356 is located at the end of the second slide rail 33 away from the stop block 34 and has a diameter larger than the second slide rail 33. The positioning block 352 is fixed to the lock body 31 and located above the second slide rail 33. The limiting slider 353 has a strip-shaped hole 355 adapted to the positioning block 352 and arranged along the length direction of the limiting slider 353. The strip-shaped hole 355 slides with the positioning block 352. The lock body is dynamically connected. The base 351 is disposed on the lock body 31 and located between the first slide rail 32 and the second slide rail 33. The spring 357 is fixed between the base 351 and the limiting slider 353 to drive the limiting slider 353 to slide toward the base 351. The limiting slider 353 has a slot 354 adapted to the locking block 356 on the side near the first slide rail 32. When the locking block 356 is located in the slot 354, the lock body 31 is fixed on the first slide rail 32. When the locking block 356 is located outside the slot 354, the lock body 31 slides along the first slide rail 32. When the operator pushes the lock body 31 to slide along the first slide rail 32 until it slides along the second slide rail 33 and abuts against the stop block 34, the spring 357 automatically tightens, pushing the slot 354 on the limit slider 353 to lock with the stop block 356, thus tightening and locking the circumferential sling 21. When it is necessary to open the circumferential sling 21, external force is applied to push the limit slider 353 to separate from the stop block 356, and the sliding lock body 31 disengages from the second slide rail 33, thus releasing the circumferential sling 21. This mechanism achieves a single-step operation of "pushing to tighten and then self-locking," requiring no tools. The continuous locking force provided by the spring 357 will not loosen even in the vibration environment of hoisting, significantly improving safety.

[0054] Furthermore, to prevent the lock body 31 from dislodging from the first slide rail 32 and the second slide rail 33 when subjected to upward pulling force, such as Figure 5 As shown, both the first slide rail 32 and the second slide rail 33 include a strip block disposed on the top of the end block 22. The top of the strip block is provided with a cylinder with a diameter greater than the width of the strip block. The bottom of the lock body 31 is provided with a sliding groove that is adapted to the first slide rail 32 and the second slide rail 33. This effectively prevents the lock body 31 from coming off the slide rail when it is subjected to an upward pulling force, while ensuring smooth sliding.

[0055] To limit the sliding path of the lock body 31, a limiting plate 321 is provided at the end of the first slide rail 32 away from the stop block 34. The cross section of the limiting plate 321 is larger than the cross section of the first slide rail 32. When the lock body 31 slides to the limit position, it is blocked from continuing to slide, preventing the lock body 31 from falling off the end of the first slide rail 32 and providing safety redundancy.

[0056] Furthermore, the circumferential sling 21 is made of a flexible material, such as high-strength nylon or polyester fiber tape, which has a certain width and tensile strength. This can prevent direct contact with the sharp edges of irregularly shaped components, thus avoiding wear. At the same time, the effective length can be flexibly adjusted according to the size of the irregularly shaped components to accommodate the binding of batches of irregularly shaped components of different sizes, ensuring a tight fit with the surface of the components during binding and reducing local compression damage.

[0057] To prevent the load-bearing steel sling 4 from falling out of the second rope loop 24, such as Figure 3 As shown, the two ends of the load-bearing steel cable 4 are detachably connected to limiting blocks 41, the diameter of which is larger than the diameter of the second rope loop 24. During installation, the load-bearing steel cable 4 is first passed through the second rope loop 24, and then the limiting blocks 41 are installed at the end of the cable. Because the diameter of the limiting blocks 41 is larger than the inner diameter of the second rope loop 24, the cable cannot come out of the loop. The connection between the limiting blocks 41 and the cable can be a threaded connection or a snap-fit ​​connection. This structure forms a closed connection, fundamentally eliminating the risk of the load-bearing steel cable 4 coming out, while also facilitating disassembly and maintenance.

[0058] The present invention also provides a method for batch hoisting of irregularly shaped components, which is implemented using a batch hoisting device for irregularly shaped components as described above, and includes the following steps:

[0059] Equipment inspection and preparation; confirm that the components of the conversion lifting device 1, the sling mechanism 2, and the self-locking binding mechanism 3 are complete; adjust the length of the circumferential sling 21 of the sling mechanism 2 according to the size of the batch of irregularly shaped components to be lifted, and check the compatibility between the crane hook and the connection hole 121 of the conversion lifting device 1.

[0060] Specifically, confirm the integrity of the conversion lifting device 1, lifting sling mechanism 2, and self-locking binding mechanism 3: check that the circumferential lifting sling 21 of the lifting sling mechanism 2 is undamaged and the end block 22 is securely connected; check that all components of the self-locking binding mechanism 3 are tightly connected, the spring 357 has good elasticity, the limit slider 353 slides smoothly, and the switching between locked and unlocked states is normal; check that the load-bearing steel cable 4 is unworn and unbroken, and the limit block 41 is securely connected; check that the pulley 132 of the conversion lifting device 1 rotates flexibly, the first rope ring 142 can rotate freely, and all connections are secure; check that the directional steel cable 5 is undamaged and reliably connected; adjust the effective length of the circumferential lifting sling 21 of the lifting sling mechanism 2 according to the size of the batch of irregular steel reinforcement components to be lifted, ensuring that the circumferential lifting sling 21 can completely wrap the irregular components and fit tightly. At the same time, check the condition of the crane hook, ensuring that the hook is undamaged, reliably locked, and compatible with the connection hole 121 of the conversion lifting device 1.

[0061] S1. Bind the irregularly shaped components to be hoisted; adjust the circumferential sling 21 to wrap around the batch of irregularly shaped components, and use the self-locking binding mechanism 3 to tighten the circumferential sling 21 to bind the irregularly shaped components to be hoisted.

[0062] S101. Align the end blocks 22 at both ends of the circumferential sling 21, slide the lock body 31 of the self-locking mechanism 3 onto the first slide rail 32, and push the lock body 31 to slide along the first slide rail 32 until the circumferential sling 21 is tightened and fits the surface of the irregular component.

[0063] S102. Release the external force on the limiting slider 353, and the spring 357 will automatically tighten, pushing the limiting slider 353 to slide until the limiting slider 353 engages with the locking block 356 to lock the locking block, thereby locking the ring sling that is binding the irregularly shaped component to be hoisted.

[0064] Specifically, adjust the circumferential sling 21 to wrap around and secure a batch of irregularly shaped components, ensuring that the circumferential sling 21 covers the key stress points of the components and avoids direct contact with the sharp edges and corners of the components; align the end blocks 22 at both ends of the circumferential sling 21, slide the locking body 31 of the self-locking binding mechanism 3 onto the first slide rail 32, push the locking body 31 to slide along the first slide rail 32 until the circumferential sling 21 tightens and fits against the surface of the irregularly shaped components, release the external force on the limiting slider 353, the spring 357 automatically tightens, push the limiting slider 353 to slide along the positioning block 352 until the slot 354 of the limiting slider 353 engages with the locking block 356, at which point the locking body 31 is in a locked state, and the circumferential sling 21 is firmly locked, achieving the binding and fixing of a batch of irregularly shaped components; adjust the circumferential sling 21 to wrap around and secure the batch of irregularly shaped components, and use the self-locking binding mechanism 3 to tighten the circumferential sling 21.

[0065] S2. Connect the conversion lifting device 1 and the sling mechanism 2; pass the load-bearing steel cable 4 through the hook connecting rod 12 and pulley assembly 13 of the conversion lifting device 1 and connect it to the second rope ring 24 on the sling mechanism 2; tie one end of the directional steel cable 5 to the side of the irregular component with the greater weight, and pass the other end through the first rope ring 142 of the conversion lifting device 1 and connect it to the directional hook.

[0066] Specifically, the load-bearing steel sling 4 is sequentially passed through the guide groove 124 of the hook connecting rod 12 of the conversion lifting device 1 and the channel 133 of the pulley assembly 13, i.e., the channel 133 between the two pulleys 132. Then, both ends of the load-bearing steel sling 4 are connected to the second rope loops 24 on the two lifting mechanisms 2 respectively, ensuring that the limiting block 41 at the end of the load-bearing steel sling 4 is locked in place by the second rope loop 24 to prevent the load-bearing steel sling 4 from falling off. One end of the directional steel sling 5 is tied to the side of the irregularly shaped component with the greater weight, and the other end is passed through the first rope loop 142 of the conversion lifting device 1 and connected to the directional hook, leaving sufficient steel cable length for subsequent balance adjustment.

[0067] S3. Connect the conversion spreader 1 to the crane; connect the crane hook to the connection hole 121 of the conversion spreader 1.

[0068] Specifically, connect the crane hook to the connection hole 121 of the conversion spreader 1, ensure a secure connection, lock the crane hook, and prevent the conversion spreader 1 from falling off.

[0069] S4. Lifting and balancing adjustment: Start the crane and slowly lift the conversion lifting device 1, which will drive the load-bearing steel cable 4, the lifting belt device and the irregular component to rise slowly. Stop lifting when the component is 10-20cm above the ground and observe the balance of the irregular component. If the irregular component tilts, adjust the center of gravity of the irregular component by tightening or loosening the directional steel cable 5 through the directional hook until the irregular component is in a horizontal balance state.

[0070] Specifically, start the crane and slowly lift the conversion spreader 1, which will slowly raise the load-bearing steel cable 4, the lifting mechanism 2, and the irregularly shaped component. Stop lifting when the component is 10-20cm above the ground and observe its balance. If the component tilts (usually the heavier side sinks), tighten the directional steel cable 5 using the directional hook to adjust the component's center of gravity. If the component tilts to the other side, loosen the directional steel cable 5 using the directional hook. During adjustment, the first rope ring 142 will automatically rotate according to the direction of force on the directional steel cable 5 to ensure that the conversion spreader 1 does not shift. Repeat the adjustment until the irregularly shaped component is in a horizontal balance. After the balance adjustment is completed, check the connection status of each component again: confirm that the self-locking mechanism 3 is still locked, the load-bearing steel cable 4 and the directional steel cable 5 are not loose, all components of the conversion spreader 1 are securely connected, and the irregularly shaped component is balanced and stable without tilting or swaying.

[0071] S5. Batch hoisting and placement; After adjusting the balance, start the crane to hoist the batch of irregular components to the designated installation position. At the same time, observe the balance of the components. If there is a slight tilt, adjust the tightness of the directional steel cable 5 to correct it. Hoist the irregular components to the installation position and lower them slowly. Adjust the position of the components. After the components are stably placed and fixed, stop the crane operation.

[0072] Specifically, after adjusting the balance, the crane is started to slowly lift the entire device, transporting the batch of irregularly shaped components to the designated installation position. During the lifting process, the crane is kept at a constant speed, avoiding sudden stops or sharp turns. A designated person observes the balance of the components; if slight tilting occurs, it can be corrected by fine-tuning the tension of the directional steel sling 5. The irregularly shaped components are lifted above the installation position and slowly lowered, their positions adjusted to ensure accurate installation. Once the components are stably positioned and secured, the crane operation is stopped. This completes one batch of irregularly shaped component lifting operations. For subsequent batch lifting of irregularly shaped components of the same specification, since the center of gravity adjustment has already been completed, steps S1 and S5 can be repeated directly without further balance adjustments, significantly improving batch lifting efficiency.

[0073] This method enables real-time and continuous adjustment of the center of gravity during trial lifting through an independent directional path, reducing the adjustment process that originally required multiple lifting operations to a single lifting operation. For batch lifting, only one balance adjustment is needed for the first batch of components, and subsequent components of the same specifications can directly use the same adjustment parameters, significantly improving the efficiency of batch operations.

Claims

1. A batch hoisting device for irregularly shaped components, characterized in that, It includes a conversion lifting device (1), a sling mechanism (2), a self-locking binding mechanism (3), a load-bearing steel cable (4), and a directional steel cable (5); the sling mechanism (2) is provided in two parts and is located below the conversion lifting device (1); the self-locking binding mechanism (3) is provided on the sling mechanism (2) to lock the sling mechanism (2) after binding the irregular component. The conversion lifting device (1) includes a lifting device body (11), a hook connecting rod (12), a pulley assembly (13), and a directional lifting ring (14). With a spatial rectangular coordinate system as the reference system, the hook connecting rod (12) is set on the top of the lifting device body (11) along the z-axis direction, the pulley assembly (13) is set on both sides of the lifting device body (11) along the x-axis direction, and the directional lifting ring (14) is set on any side of the lifting device body (11) along the y-axis direction. The end of the hook connecting rod (12) away from the lifting device body (11) is provided with a connecting hole (121) for connecting with the crane hook. The end of the hook connecting rod (12) near the lifting device body (11) is provided with a through hole (122). A guide wheel (123) is provided in the through hole (122). The guide wheel (123) is provided with a guide groove (124) for the load-bearing steel cable (4) to pass through. The pulley assembly (13) includes a frame (131) and pulleys (132). The frame (131) is fixed on the lifting body (11). The two pulleys (132) are arranged parallel to each other in the frame (131) along the x-axis direction. A channel (133) is provided between the two pulleys (132) for the load-bearing steel cable (4) to pass through. The directional lifting ring (14) includes a first rotating shaft (141) and a first rope loop (142). The first rotating shaft (141) is rotatably mounted on the lifting device body (11) and rotates along itself. The first rope loop (142) is rotatably mounted on the first rotating shaft (141). One end of the directional steel cable (5) is tied to the irregular component, and the other end passes through the first rope loop (142) and is connected to the directional hook; The sling mechanism (2) includes a circumferential sling (21), and two circumferential slings (21) are coaxially arranged below the conversion sling (1) along the x-axis direction; both ends of the circumferential sling (21) are provided with end blocks (22), and the end blocks (22) are provided with a self-locking mechanism (3) for self-locking and loosening of the circumferential sling (21); the top of the self-locking mechanism (3) is provided with a second rotating shaft (23), which rotates around its own axis, and a second rope loop (24) for passing through a load-bearing steel lock is rotatably connected to the second rotating shaft (23). The load-bearing steel cable (4) passes sequentially through the guide groove (124) of the hook connecting rod (12), the channel (133) of the pulley assembly (13), and the second rope loop (24) to connect the conversion lifting device (1) and the sling mechanism (2).

2. The batch hoisting device for irregularly shaped components as described in claim 1, characterized in that, The self-locking binding mechanism (3) includes a lock body (31), a first slide rail (32), a second slide rail (33), and a self-locking mechanism (35), wherein the second rotating shaft (23) is located on the top of the lock body (31); The first slide rail (32) is fixed on the top of one of the end blocks (22), and the second slide rail (33) is fixed on the top of the other end block (22) and is arranged parallel to the first slide rail (32); the lock body (31) is slidably arranged on the first slide rail (32) and the second slide rail (33) and slides along the length direction of the first slide rail (32). The length of the first slide rail (32) is at least twice that of the second slide rail (33), and the length of the second slide rail (33) is greater than the length of the lock body (31). One end of the first slide rail (32) and the second slide rail (33) are aligned and the aligned end is provided with a stop (34) for limiting the sliding of the lock body (31). The self-locking mechanism (35) is arranged on the side of the lock body (31) away from the stop (34) and engages with the second slide rail (33) to control the locking and unlocking of the circumferential sling (21).

3. The batch hoisting device for irregularly shaped components as described in claim 2, characterized in that, The self-locking mechanism (35) includes a base (351), a positioning block (352), a limiting slider (353), a locking block (356), and a spring (357). The locking block (356) is located at the end of the second slide rail (33) away from the stop block (34) and has a diameter larger than the second slide rail (33). The positioning block (352) is fixed on the lock body (31) and located above the second slide rail (33). The limiting slider (353) has a strip hole (355) adapted to the positioning block (352) and arranged along the length direction of the limiting slider (353). The strip hole (355) is slidably connected to the positioning block (352). The base (351) is set on the lock body (31) and located between the first slide rail (32) and the second slide rail (33). The spring (357) is fixed between the base (351) and the limiting slider (353) to drive the limiting slider (353) to slide towards the base (351). The limiting slider (353) has a slot (354) adapted to the locking block (356) on the side near the first slide rail (32). When the locking block (356) is located in the slot (354), the lock body (31) is fixed on the first slide rail (32). When the locking block (356) is located outside the slot (354), the lock body (31) slides along the first slide rail (32).

4. The batch hoisting device for irregularly shaped components as described in claim 2, characterized in that, The first slide rail (32) and the second slide rail (33) both include a strip block set on the top of the end block (22). The top of the strip block is provided with a cylinder with a diameter greater than the width of the strip block. The bottom of the lock body (31) is provided with a groove that is compatible with the first slide rail (32) and the second slide rail (33).

5. The batch hoisting device for irregularly shaped components as described in claim 2, characterized in that, The first slide rail (32) is also provided with a limiting plate (321) at the end away from the stop block (34).

6. The batch hoisting device for irregularly shaped components as described in claim 1, characterized in that, The circumferential sling (21) is made of a flexible material.

7. The batch hoisting device for irregularly shaped components as described in claim 1, characterized in that, The two ends of the load-bearing steel cable (4) are detachably connected to limit blocks (41), and the diameter of the limit blocks (41) is greater than the diameter of the second rope loop (24).

8. A method for batch hoisting of irregularly shaped components, characterized in that, This is achieved using the batch hoisting device for irregularly shaped components as described in any one of claims 1-7, and includes the following steps: S1. Bind the irregularly shaped components to be hoisted; Adjust the circumferential slings (21) to wrap around and wrap a batch of irregular components, and use the self-locking binding mechanism (3) to tighten the circumferential slings (21) to bind the irregular components to be hoisted; S2. Connect the conversion lifting device (1) and the sling mechanism (2); After passing the load-bearing steel cable (4) through the hook connecting rod (12) and pulley assembly (13) of the conversion lifting device (1), it is connected to the second rope loop (24) on the sling mechanism (2); one end of the directional steel cable (5) is tied to the side of the irregular component with the greater weight, and the other end passes through the first rope loop (142) of the conversion lifting device (1) and is connected to the directional hook; S3. Connect the conversion spreader (1) to the crane; Connect the crane hook to the connection hole (121) of the conversion lifting device (1); S4. Lifting balance adjustment; Start the crane and slowly lift the conversion lifting device (1), which will drive the load-bearing steel cable (4), the lifting belt device and the irregular component to rise slowly. Stop lifting when the component is 10-20cm above the ground and observe the balance of the irregular component. If the irregular component tilts, adjust the center of gravity of the irregular component by tightening or loosening the directional steel cable (5) through the directional hook until the irregular component is in a horizontal balance state. S5. Batch hoisting and placement; After adjusting the balance, start the crane to lift the batch of irregular components to the designated installation position. At the same time, observe the balance of the components. If there is a slight tilt, adjust the tightness of the directional steel cable (5) to correct it. Lift the irregular components above the installation position, lower them slowly, adjust the position of the components, and stop the crane operation after the components are stably placed and fixed.

9. A method for batch hoisting of irregularly shaped components as described in claim 8, characterized in that, Step S1 further includes: S101. Align the end blocks (22) at both ends of the circumferential sling (21), slide the lock body (31) of the self-locking mechanism (3) onto the first slide rail (32), push the lock body (31) to slide along the first slide rail (32) until the circumferential sling (21) is tightened and fits the surface of the irregular component; S102. Release the external force on the limiting slider (353), the spring (357) automatically tightens, pushing the limiting slider (353) to slide until the limiting slider (353) engages with the locking block (356) to lock the locking block, thereby locking the ring sling that is binding the irregularly shaped component to be hoisted.

10. The method for batch hoisting of irregularly shaped components as described in claim 8, characterized in that: The process of checking and preparing the equipment is preceded by step S1; Confirm that the components of the conversion lifting device (1), the sling mechanism (2), and the self-locking binding mechanism (3) are complete; adjust the length of the circumferential sling (21) of the sling mechanism (2) according to the size of the batch of irregular components to be lifted, and check the compatibility between the crane hook and the connection hole (121) of the conversion lifting device (1).

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