Self-disassembly lifting tools and hoisting equipment

Abstract

This utility model relates to the field of lifting technology, providing a self-disassembling lifting device and lifting equipment. The self-disassembling lifting device includes a lifting device body, a self-disassembly mechanism, and a transmission mechanism. The self-disassembly mechanism is located on the lifting device body and rotates with it. The self-disassembly mechanism is configured to disassemble the lifting bolts to be disassembled under the drive of rotational motion. The transmission mechanism is located on the lifting device body and has a power input shaft and a power output shaft. The axes of the power input shaft and the power output shaft are perpendicular to each other. A first transmission wheel is provided on the power input shaft, and a flexible transmission element is driven on the first transmission wheel. The flexible transmission element is configured to transmit driving force to the first transmission wheel. A second transmission wheel is provided on the power output shaft, and the second transmission wheel is driven with the self-disassembly mechanism. This utility model's self-disassembly lifting device does not require an external power supply. It relies on the force applied to the flexible transmission element to convert into torque to disassemble the lifting bolts, making the disassembly process of the lifting bolts both safe and efficient.

Description

Technical Field

[0001] This utility model relates to the field of hoisting technology, and in particular to a self-disassembling hoisting tool and hoisting equipment. Background Technology

[0002] As the capacity of wind turbine generators continues to increase, the requirements for tower height and structural strength are becoming increasingly stringent. Based on considerations of cost control and ease of transportation and installation, the use of precast concrete towers has gradually become the mainstream technical approach in the industry. Concrete towers typically employ a segmented structural design, with each section consisting of 2-4 arc-shaped tower segments, and a standard segment height of approximately 3.5 meters.

[0003] Because the tower sections involve multiple operational scenarios from the prefabrication workshop to the installation site, such as transportation, relocation, and high-altitude installation, the high-strength lifting bolts on the top of the tower sections are used to connect to hooks or lifting tools for hoisting operations. After hoisting, the lifting bolts need to be frequently disassembled and reassembled.

[0004] Currently, there are two main methods for dismantling lifting bolts: one is manual dismantling, where operators need to climb to the top of the tower section to perform manual operations, which is inefficient and carries the risk of falling from height. The other method is to use an electrically driven dismantling device. While this method can reduce manpower consumption, the dismantling device relies on an external power supply system and cannot be used normally in field construction sites or temporary storage areas without power supply. Utility Model Content

[0005] This utility model provides a self-disassembling lifting device and lifting equipment to solve at least one of the above-mentioned technical defects in the prior art. The self-disassembling lifting device does not require an external power supply and relies on the force applied to the flexible transmission element to convert into torque to disassemble the lifting bolts, making the disassembly process of the lifting bolts both safe and efficient.

[0006] The first aspect of this utility model provides a self-disassembling lifting device, comprising:

[0007] The main body of the lifting device is used for lifting onto the lifting equipment.

[0008] A self-disassembly mechanism is provided on the main body of the lifting device and rotates with the main body of the lifting device. The self-disassembly mechanism is configured to disassemble the lifting bolts to be disassembled under the drive of rotational motion.

[0009] A transmission mechanism is provided on the main body of the lifting device. The transmission mechanism has a power input shaft and a power output shaft. The axes of the power input shaft and the power output shaft are perpendicular to each other. A first transmission wheel is provided on the power input shaft. A flexible transmission element is driven on the first transmission wheel. The flexible transmission element is configured to transmit driving force to the first transmission wheel. A second transmission wheel is provided on the power output shaft. The second transmission wheel is in transmission cooperation with the self-disassembly mechanism.

[0010] According to the self-disassembly lifting device provided by this utility model, the transmission mechanism includes:

[0011] The mounting base is fixedly installed on the main body of the lifting device;

[0012] A first bevel gear is disposed on the power input shaft;

[0013] A second bevel gear is disposed on the power output shaft, and the second bevel gear meshes with the first bevel gear.

[0014] Both the power input shaft and the power output shaft are in transmission engagement with the mounting base.

[0015] According to the self-disassembly lifting device provided by this utility model, the self-disassembly mechanism includes:

[0016] A slewing support component is fixedly mounted on the main body of the lifting device;

[0017] A self-disassembling mandrel is provided on the slewing support component and can rotate relative to the lifting device body. The self-disassembling mandrel is configured to disassemble the lifting bolts to be disassembled under the drive of rotational motion.

[0018] The rotary transmission wheel is linked to the self-disassembly mandrel.

[0019] The rotary transmission wheel is engaged with the second transmission wheel, and the number of teeth on the rotary transmission wheel is greater than the number of teeth on the second transmission wheel.

[0020] According to the self-disassembly lifting device provided by this utility model, the slewing support component includes:

[0021] The bearing housing is fixedly mounted on the main body of the lifting device;

[0022] An oilless bearing is fitted inside the bearing housing;

[0023] The self-disassembling mandrel is inserted into the oil-free bearing.

[0024] According to the self-disassembly lifting device provided by this utility model, the slewing support component further includes:

[0025] A friction element is fixedly mounted on the end face of the bearing housing;

[0026] The shoulder of the self-disassembling mandrel abuts against the friction element.

[0027] According to the self-disassembly lifting device provided by this utility model, the self-disassembly mechanism further includes:

[0028] An adapter hanger is detachably connected to the bottom of the self-detachable mandrel, and the bottom of the adapter hanger has an inward clearance groove.

[0029] The lifting bolts to be disassembled are hinged to the adapter hanger via shackles, and the shackles are located in the clearance groove.

[0030] According to the self-disassembly lifting device provided by this utility model, the main body of the lifting device includes:

[0031] Platform;

[0032] A protective cover is provided on the support platform and together with the support platform, forms a receiving cavity;

[0033] A hoisting plate is provided on the supporting platform and connected to the protective cover;

[0034] Lifting lugs, connected to the lifting plate;

[0035] The self-disassembly mechanism and the transmission mechanism are both located in the accommodating cavity; the lifting lug is used for hoisting to the lifting equipment.

[0036] According to the self-disassembly lifting device provided by this utility model, the main body of the lifting device further includes:

[0037] Two limiting supports are spaced apart on the side of the bearing platform away from the protective cover;

[0038] The self-disassembly mechanism is located between two spaced-apart limit supports.

[0039] According to the self-disassembly lifting device provided by this utility model, the main body of the lifting device further includes:

[0040] A positioning element is disposed between the two limiting supports and connected to each of the limiting supports. The positioning element has a positioning hole for the hoisting bolts to be disassembled to pass through.

[0041] A second aspect of this utility model provides a hoisting device, comprising:

[0042] The hoisting support has a first sling and a second sling on each side, and the first sling is used to hoist the equipment.

[0043] And including any of the self-disassembly lifting devices described in any one of them, the self-disassembly lifting device being mounted on the second sling;

[0044] The number of self-disassembling lifting devices corresponds to the number of the second slings.

[0045] The self-disassembly lifting device provided by this utility model has a self-disassembly mechanism and a transmission mechanism set on the lifting device body, so that the self-disassembly mechanism rotates with the lifting device body; the first transmission wheel on the power input shaft of the transmission mechanism is driven to rotate by a flexible transmission element, and the power transmission direction is changed by the transmission mechanism, so that the second transmission wheel drives the self-disassembly mechanism to rotate, so as to achieve automated disassembly of the lifting bolts to be disassembled.

[0046] During the automated dismantling of lifting bolts, no high-altitude work is required. Operators on the ground can drive the self-dismantling lifting device by pulling the flexible transmission element, improving work efficiency while reducing the risk of falls from heights. Moreover, the transmission mechanism adopts a purely mechanical structure, requiring no external power supply. Through the rational design of the transmission mechanism, the force applied to the flexible transmission element is converted into torque to dismantle the lifting bolts, making the bolt dismantling process both safe and efficient, and adaptable to various scenarios.

[0047] Furthermore, the hoisting equipment provided by this utility model, because it includes the aforementioned self-disassembling hoist, possesses all the advantages of the aforementioned self-disassembling hoist, enabling safe and efficient disassembly of hoisting bolts without external power supply, while meeting ground operation requirements and avoiding the risks of high-altitude operations. Attached Figure Description

[0048] To more clearly illustrate the technical solutions in this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0049] Figure 1 This is a structural schematic diagram of the self-disassembling lifting device provided in this embodiment of the utility model.

[0050] Figure 2 This is an exploded view of the structure of the self-disassembling lifting device provided in this embodiment of the utility model.

[0051] Figure 3 This is a front view of the self-disassembling lifting device provided in this embodiment of the utility model.

[0052] Figure 4 yes Figure 3 Axonometric sectional view along line AA.

[0053] Figure 5This is a structural schematic diagram of the hoisting equipment provided in this embodiment of the utility model.

[0054] Figure label:

[0055] 100. Self-disassembling lifting device; 200. Lifting bracket; 300. First sling; 400. Second sling; 500. Lifting bolt; 600. Tower section;

[0056] 10. Lifting device body; 11. Loading platform; 12. Protective cover; 13. Lifting plate; 14. Lifting lugs; 15. Limiting support; 16. Positioning component; 161. Positioning hole;

[0057] 20. Self-disassembly mechanism; 21. Rotary support component; 211. Bearing housing; 212. Oil-free bearing; 213. Friction element; 22. Self-disassembly mandrel; 23. Rotary drive wheel; 24. Adapter hanger; 241. Clearance groove; 25. Shackle;

[0058] 30. Transmission mechanism; 31. Power input shaft; 32. Power output shaft; 33. First transmission wheel; 34. Second transmission wheel; 35. Mounting base; 36. First bevel gear; 37. Second bevel gear; 38. Transmission chain;

[0059] 40. Flexible transmission components. Detailed Implementation

[0060] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0061] In the description of the embodiments of this application, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this application based on the specific circumstances.

[0062] In the embodiments of this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0063] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the embodiments of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0064] Figure 1 This is a structural schematic diagram of the self-disassembling lifting device provided in this embodiment of the utility model. Figure 2 This is an exploded view of the structure of the self-disassembling lifting device provided in this embodiment of the utility model.

[0065] See Figure 1 and Figure 2 This utility model provides a self-disassembling lifting device 100, which is suitable for scenarios such as wind turbine blade installation and bridge steel structure hoisting. The device can be assembled on the ground and deployed to a high-altitude location for installation using lifting equipment. After installation, the self-disassembling lifting device 100 can be automatically disassembled from the ground to reduce the frequency of high-altitude operations.

[0066] The self-disassembly lifting device 100 includes a lifting device body 10, a self-disassembly mechanism 20, and a transmission mechanism 30. The lifting device body 10 is used to lift to lifting equipment such as cranes or tower cranes.

[0067] The main body 10 of the lifting device can be made of high-strength alloy steel. The shape of the main body 10 is similar to a cuboid structure. A lifting hole is provided on the top of the main body 10 to facilitate direct connection with the hook of a crane or tower crane, or connection with the hook of a crane or tower crane through a shackle.

[0068] The self-disassembly mechanism 20 is located on the lifting device body 10 and can rotate relative to the lifting device body 10. The self-disassembly mechanism 20 is configured to disassemble the lifting bolt 500 to be disassembled under the drive of rotational motion. That is, the self-disassembly mechanism 20 is used to connect with the lifting bolt 500 to be disassembled, and by driving the self-disassembly mechanism 20 to rotate, the lifting bolt 500 is disengaged from the connecting carrier (such as the tower plate 600).

[0069] A transmission mechanism 30 is located on the lifting device body 10. The transmission mechanism 30 has a power input shaft 31 and a power output shaft 32, the axes of which are perpendicular to each other. A first transmission wheel 33 is provided on the power input shaft 31, and a flexible transmission element 40 is driven on the first transmission wheel 33. The flexible transmission element 40 is configured to transmit driving force to the first transmission wheel 33. A second transmission wheel 34 is provided on the power output shaft 32, and the second transmission wheel 34 is in transmission cooperation with the self-disassembly mechanism 20.

[0070] It should be noted that the flexible transmission element 40 may include a closed annular chain or belt. When the flexible transmission element 40 includes a chain, the corresponding first transmission wheel 33 is a sprocket. The sprocket can be connected to the power input shaft 31 via a key, achieving a linkage setting with the power input shaft 31. The length of the flexible transmission element 40 can be set according to actual needs, allowing operators to perform operations on the ground away from heights, avoiding the risks of falls from heights.

[0071] Taking the hoisting of a tower as an example, when it is necessary to remove the hoisting bolts 500 set on the tower section 600, the operator holds the flexible transmission element 40 (chain) on the ground and applies tension to the flexible transmission element 40.

[0072] Because the flexible transmission element 40 is engaged with the first transmission wheel 33, the tension applied to the flexible transmission element 40 is converted into the rotational force of the first transmission wheel 33. The rotation of the first transmission wheel 33 is transmitted to the second transmission wheel 34 through the transmission mechanism 30, and the second transmission wheel 34 then transmits the power to the self-disassembly mechanism 20. Under the action of the rotational power, the self-disassembly mechanism 20 begins to rotate, enabling the lifting bolt 500 to self-disassemble.

[0073] Throughout the operation, since the transmission mechanism 30 is a purely mechanical structure, no external power supply is required. The operator only needs to use their own strength to pull the flexible transmission element 40 to generate sufficient torque. This allows the operator to work from a ground-level location away from the lifting equipment, avoiding the risks of working at heights. For example, at the site of tower blade installation, the crane lifting height may reach tens of meters. Using the self-disassembling lifting tool 100 provided by this invention, the operator can safely disassemble the lifting bolts 500 from a safe ground area by pulling the long flexible transmission element 40.

[0074] It is understood that the self-disassembly lifting device 100 provided by this utility model, by setting a self-disassembly mechanism 20 and a transmission mechanism 30 on the lifting device body 10, enables the self-disassembly mechanism 20 to rotate in conjunction with the lifting device body 10; by driving the first transmission wheel 33 on the power input shaft 31 of the transmission mechanism 30 to rotate through the flexible transmission element 40, and by changing the power transmission direction through the transmission mechanism 30, the second transmission wheel 34 drives the self-disassembly mechanism 20 to rotate, so as to achieve automated disassembly of the lifting bolts 500 to be disassembled.

[0075] During the automated dismantling and lifting of bolt 500, no high-altitude work is required. Operators on the ground can drive the self-dismantling lifting device by pulling the flexible transmission element 40, which improves work efficiency and reduces the risk of falls from heights. Moreover, the transmission mechanism 30 adopts a purely mechanical structure and does not require an external power supply. Through the reasonable design of the transmission mechanism 30, the force applied to the flexible transmission element 40 is converted into torque to dismantle the lifting bolt 500, making the dismantling process of the lifting bolt 500 both safe and efficient, and adaptable to multiple scenarios.

[0076] Continue reading Figure 2 In some embodiments of this utility model, the transmission mechanism 30 includes a mounting base 35, a first bevel gear 36, and a second bevel gear 37.

[0077] The mounting base 35 can be made of high-strength aluminum alloy and has an overall cuboid shape. The mounting base 35 has sufficient rigidity and strength to support the rotation of the power input shaft 31 and the power output shaft 32. In other words, the power input shaft 31 and the power output shaft 32 are in transmission cooperation with the mounting base 35, and the power input shaft 31 and the power output shaft 32 can rotate relative to the mounting base 35.

[0078] Mounting holes are provided at the four corners of the mounting base 35. High-strength bolts are inserted through the mounting holes to fix the mounting base 35 to the lifting device body 10.

[0079] The power input shaft 31 can be mounted on the bearing mounting seat of the mounting base 35 via bearings to ensure the stability and accuracy of the power input shaft 31 during rotation. The first bevel gear 36 can be set at one end of the power input shaft 31, and the first transmission wheel 33 can be set at the other end of the power input shaft 31, that is, the first transmission wheel 33 and the first bevel gear 36 are coaxially connected through the power input shaft 31.

[0080] The installation method of the power output shaft 32 is similar to that of the power input shaft 31. It is also mounted on the bearing mounting seat of the mounting base 35 via bearings to ensure the stability and accuracy of the power output shaft 32 during rotation. The second bevel gear 37 can be set at one end of the power output shaft 32, and the second transmission wheel 34 can be set at the other end of the power output shaft 32. That is, the second transmission wheel 34 and the second bevel gear 37 are coaxially connected through the power output shaft 32.

[0081] It should be noted that, in order to improve the reliability of the connection and prevent loosening, anti-loosening nuts can be provided at the connection points between the first bevel gear 36 and the first transmission wheel 33 and the power input shaft 31. Similarly, anti-loosening nuts can be provided at the connection points between the second bevel gear 37 and the second transmission wheel 34 and the power output shaft 32.

[0082] When the operator applies force to the flexible transmission element 40 on the ground, the first transmission wheel 33 begins to rotate. Since the first transmission wheel 33 and the first bevel gear 36 are coaxially arranged, the first bevel gear 36 rotates synchronously with the first transmission wheel 33. The rotation of the first bevel gear 36 drives the second bevel gear 37, which meshes with it, to rotate, thus achieving torque conversion. The rotation of the second bevel gear 37 drives the second transmission wheel 34, which is coaxial with it, to rotate. The rotation of the second transmission wheel 34 transmits power to the self-disassembly mechanism 20, which in turn drives the self-disassembly mandrel 22 to rotate, ultimately achieving the disassembly operation of the lifting bolt 500.

[0083] Understandably, by meshing the first bevel gear 36 and the second bevel gear 37 to change the direction of power transmission, the vertical rotation of the power input shaft 31 is converted into the horizontal rotation of the power output shaft 32. This allows the operator to remove the hoisting bolt 500 from the ground by pulling the flexible transmission element 40, eliminating the need for working at heights. This improves work efficiency while reducing the risk of falls from heights.

[0084] In addition, the transmission mechanism 30 adopts a bevel gear transmission method, which has a relatively compact structure. Compared with other complex transmission structures, it can achieve efficient power conversion in a limited space, which helps to reduce the size and weight of the entire self-disassembling lifting device 100 and facilitates its use in different lifting equipment and working environments.

[0085] Figure 3 This is a front view of the self-disassembling lifting device 100 provided in this embodiment of the utility model. Figure 4 yes Figure 3 Axonometric sectional view along line AA.

[0086] Continue reading Figure 2 And see also Figure 3 and Figure 4In some embodiments of this utility model, the self-disassembly mechanism 20 includes a rotary support component 21, a self-disassembly spindle 22, and a rotary transmission wheel 23.

[0087] The slewing support component 21 can adopt a bearing structure, which can install the self-disassembly mandrel 22 in a preset mounting seat of the lifting body 10, so that the self-disassembly mandrel 22 can rotate relative to the lifting body 10. The self-disassembly mandrel 22 is configured to perform a disassembly operation on the lifting bolt 500 to be disassembled under the drive of rotational motion.

[0088] The self-disassembly mandrel 22 can be made of high-strength quenched and tempered steel, and its diameter is designed according to the torque to be borne. The overall structure of the self-disassembly mandrel 22 is a stepped shaft, that is, an annular positioning step is provided on the self-disassembly mandrel 22 for installing the rotary transmission wheel 23, ensuring the axial positioning of the rotary transmission wheel 23 on the self-disassembly mandrel 22.

[0089] The rotary transmission wheel 23 can be an involute gear. Its module and number of teeth are designed according to the transmission ratio requirements to ensure a suitable transmission fit with the second transmission wheel 34. The rotary transmission wheel 23 can be connected to the self-removing spindle 22 by a key to achieve a linkage between the rotary transmission wheel 23 and the self-removing spindle 22.

[0090] Similarly, in order to improve the reliability of the connection and prevent the connection from loosening, an anti-loosening nut is installed at the connection between the rotary drive wheel 23 and the self-disassembly spindle 22 to prevent the rotary drive wheel 23 from loosening relative to the self-disassembly spindle 22 during operation.

[0091] When the second transmission wheel 34 of the transmission mechanism 30 starts to rotate, the rotary transmission wheel 23 will rotate with the second transmission wheel 34 due to the transmission cooperation between the rotary transmission wheel 23 and the second transmission wheel 34. This will drive the self-disassembly mandrel 22 to rotate within the rotary support component 21, causing the lifting bolt 500 to rotate accordingly and achieve automatic disassembly.

[0092] Understandably, the slewing support component 21 can withstand large axial and radial forces, ensuring the stability of the entire self-disassembly mechanism 20 during operation. Whether lifting heavy objects or encountering significant resistance during the removal of lifting bolts 500, the self-disassembly mechanism 20 can maintain a stable working state, avoiding swaying or displacement, thus improving the reliability of the entire self-disassembly lifting device 100.

[0093] The rotary transmission wheel 23 is driven by the second transmission wheel 34. For example, the rotary transmission wheel 23 and the second transmission wheel 34 are driven by gears or by a transmission chain 38. When the rotary transmission wheel 23 and the second transmission wheel 34 are driven by a transmission chain 38, both the rotary transmission wheel 23 and the second transmission wheel 34 can be sprockets. The transmission chain 38 is sleeved on the two sprockets to form a closed transmission chain. Power is transmitted between the sprockets through the transmission chain 38, which drives the rotary transmission wheel 23 to rotate.

[0094] When the second drive wheel 34 starts to rotate, the rotary drive wheel 23 rotates along with the second drive wheel 34 because the rotary drive wheel 23 is connected to the second drive wheel 34 by the drive chain 38. The rotation of the rotary drive wheel 23 drives the self-disassembling mandrel 22 to rotate within the rotary support component 21, thereby realizing the automatic disassembly of the lifting bolt 500.

[0095] The rotary drive wheel 23 has a greater number of teeth than the second drive wheel 34. By adjusting the number of teeth between the rotary drive wheel 23 and the second drive wheel 34, a speed reduction and torque increase effect can be achieved, enabling the output of a larger torque to meet the requirements of disassembling the lifting bolt 500, while reducing the torque output by the operator.

[0096] Assume the torque required to disassemble lifting bolt 500 is T1, the torque required by the operator is T2, the number of teeth on the rotary transmission wheel 23 is Z1, and the number of teeth on the second transmission wheel 34 is Z2. Since torque is proportional to the number of teeth in gear transmission, we can obtain the formula: T2 = T1 / (Z1 / Z2).

[0097] By setting the number of teeth Z1 of the rotary transmission wheel 23 to be greater than the number of teeth Z2 of the second transmission wheel 34, the torque T2 required by the operator is less than the torque T1 required by the lifting bolt 500. In the design, the appropriate output torque T2 for the operator can be calculated by setting a suitable tooth ratio. Compared to the operator directly disassembling the lifting bolt 500, the self-disassembling lifting device 100 provided in this embodiment requires less output torque to disassemble the lifting bolt 500, allowing the operator to disassemble the lifting bolt 500 with less force.

[0098] Continue reading Figure 2 and Figure 4 In some embodiments of this utility model, the slewing support component 21 includes a bearing housing 211 and an oilless bearing 212.

[0099] The bearing housing 211 can be cast from cast steel, and it possesses high strength and toughness. The bearing housing 211 can be cylindrical in shape, with multiple reinforcing ribs on the outside to enhance the overall structural strength. A flat mounting surface is provided at the bottom of the bearing housing 211, and this mounting surface is fixedly connected to the lifting device body 10 using high-strength bolts.

[0100] The oilless bearing 212 can be made of a self-lubricating copper-based alloy material, and its inner and outer ring surfaces have a special textured structure. The inner ring is in direct contact with the self-disassembling spindle 22, and the outer ring of the oilless bearing 212 is interference-fitted with the inner circumference of the bearing housing 211 to ensure that the oilless bearing 212 will not undergo relative displacement during operation.

[0101] When the self-disassembly mandrel 22 begins to rotate, the oilless bearing 212 provides the main radial support force for the self-disassembly mandrel 22. Due to the self-lubricating properties of the oilless bearing 212, the self-disassembly mandrel 22 can rotate relatively smoothly within the oilless bearing 212.

[0102] Continue reading Figure 2 and Figure 4 In some embodiments of this utility model, the rotary support component 21 further includes a friction element 213, which is fixedly disposed on the end face of the bearing seat 211, and the shoulder of the self-disassembling spindle 22 abuts against the friction element 213.

[0103] The shoulder of the self-disassembly spindle 22 abuts against the friction element 213 to form an axial limiting structure, which restricts the axial relative displacement between the self-disassembly spindle 22 and the bearing seat 211, and ensures the axial stability of the rotating component.

[0104] Since the friction element 213 is part of the friction pair, it transmits torque through friction during rotation. The clamping force of the shaft shoulder on the friction element 213 generates a friction torque, so that the self-disassembling spindle 22 and the bearing seat 211 can achieve torque-free transmission.

[0105] It should be noted that the friction element 213 includes a sliding copper pad or other pad. The sliding copper pad uses the low coefficient of friction of copper as a sliding interface, which can reduce the frictional resistance between the shoulder of the self-disassembling spindle 22 and the end face of the bearing seat 211.

[0106] Continue reading Figure 2 and Figure 4 In some embodiments of this utility model, the self-disassembly mechanism 20 further includes an adapter hanger 24, which is detachably connected to the bottom of the self-disassembly mandrel 22. The bottom of the adapter hanger 24 has an inwardly opening relief groove 241. The lifting bolt 500 to be disassembled is hinged to the adapter hanger 24 via a shackle 25, which is located in the relief groove 241.

[0107] Essentially, the adapter hanger 24 is detachably connected to the self-disassembling mandrel 22, allowing the adapter hanger 24 to be flexibly adjusted in position during installation and disassembly, facilitating docking or separation from other components. The use of the shackle 25 further simplifies the connection method of the adapter hanger 24, making the connection and disassembly between the lifting bolt 500 and the adapter hanger 24 faster, thus improving work efficiency.

[0108] The design of the clearance groove 241 can effectively prevent the shackle 25 from colliding and interfering with the adapter 24 or other components during disassembly, ensuring that the self-disassembly mandrel 22 is always in a vertical position, thereby improving the reliability and safety of the self-disassembly lifting device 100.

[0109] In some embodiments of this utility model, without the adapter hanger 24, the shackle 25 can be directly connected to the bottom of the self-disassembly mandrel 22. A connection structure matching the shackle 25 needs to be machined on the self-disassembly mandrel 22.

[0110] Since the processing of the adapter hanger 24 is relatively independent, a simpler processing technology can be used, such as casting or simple cutting, to form a structure that connects with the shackle 25 and a structure that is movably connected with the self-disassembling mandrel 22, without the need for complex integrated processing on the self-disassembling mandrel 22.

[0111] Meanwhile, the adapter hanger 24 can be designed as a standardized component. For different self-disassembly mandrel 22 and shackle 25 connection requirements, only the connection part between the adapter hanger 24 and shackle 25 needs to be adjusted, without having to perform separate customized processing for the connection requirements of each self-disassembly mandrel 22. This can improve processing efficiency and reduce manufacturing costs.

[0112] Since the self-disassembly mandrel 22 is a key component of the entire self-disassembly lifting device 100, it requires special materials or high-precision machining, resulting in relatively high material costs. If the shackle 25 is directly connected to its bottom, machining errors in the connection structure could render the entire self-disassembly mandrel 22 unusable. In contrast, the adapter 24 can be made of relatively inexpensive materials, and even if problems arise during its machining or use, its replacement cost is lower than that of the self-disassembly mandrel 22.

[0113] Continue reading Figures 1 to 4 In some embodiments of this utility model, the lifting device body 10 includes a bearing platform 11, a protective cover 12, a lifting plate 13, and a lifting lug 14.

[0114] The protective cover 12 is installed on the support platform 11 and forms a cavity with the support platform 11. The self-disassembly mechanism 20 and the transmission mechanism 30 are both installed in the cavity, which can provide effective protection for the self-disassembly mechanism 20 and the transmission mechanism 30, prevent external dust, debris and possible corrosive substances from entering, reduce the erosion of the internal mechanism by harmful substances, and thus extend the service life of the mechanism.

[0115] In addition, the protective cover 12 and the support platform 11 work together to prevent the internal structure from being subjected to accidental collisions or external impacts, protecting the integrity of the internal precision components and reducing the risk of equipment failure during equipment transportation, storage or minor collisions.

[0116] The lifting plate 13 is located on the support platform 11 and connected to the protective cover 12. The lifting lug 14 is connected to the lifting plate 13. Since the lifting lug 14 is connected to the lifting plate 13, and the lifting plate 13 is located on the support platform 11 and connected to the protective cover 12, the various parts of the lifting device body 10 (support platform 11, protective cover 12, lifting plate 13 and lifting lug 14) are interconnected to form an organic whole, which enables the self-disassembling lifting device 100 to maintain good structural stability during the lifting process.

[0117] The lifting lug 14 is specifically designed for lifting onto the lifting equipment. The connection between the lifting lug 14 and other components ensures that the force on the lifting device can be reasonably transferred to the entire lifting device body 10 during the lifting process, facilitating the lifting operation.

[0118] In addition, multiple reinforcing ribs can be provided in various parts of the lifting device body 10 (bearing platform 11, protective cover 12, lifting plate 13 and lifting ear plate 14) to enhance its overall structural strength and ensure that it will not deform during the lifting process.

[0119] Continue reading Figures 1 to 4 In some embodiments of this utility model, the lifting device body 10 further includes two limiting supports 15, which are spaced apart on the side of the bearing platform 11 away from the protective cover 12, and the self-disassembly mechanism 20 is located between the two spaced limiting supports 15.

[0120] The limiting support 15 is made of high-strength steel and has a rectangular block structure. The limiting support 15 is installed at intervals on the side of the bearing platform 11 away from the protective cover 12 by welding.

[0121] When the tower section 600 is being hoisted, as the self-disassembling lifting device 100 approaches the tower section 600 under the action of the lifting equipment (crane or tower crane), two spaced-apart limit supports 15 are engaged on both sides of the tower section 600 to limit the self-disassembling lifting device 100, making it convenient for the self-disassembling lifting device 100 to connect to the hoisting bolts 500 on the tower section 600 through the shackles 25.

[0122] In addition, the limiting support 15 can also limit the swing of the tower section 600, so that the tower section 600 remains stable during the hoisting process. For the hoisting of large tower sections 600, it can reduce the safety risks caused by the swaying of the tower section 600 and improve the safety and reliability of the hoisting operation.

[0123] To prevent the limiting support 15 from damaging the surface of the tower plate 600, a rubber buffer pad can be installed at the contact point between the limiting support 15 and the tower plate 600 to avoid the limiting support 15 from subjecting the tower plate 600 to hard compression.

[0124] Continue reading Figures 1 to 4 In some embodiments of this utility model, the lifting device body 10 further includes a positioning member 16, which is disposed between two limiting supports 15 and connected to each limiting support 15. The positioning member 16 has a positioning hole 161 for the lifting bolt 500 to be disassembled to pass through.

[0125] In other words, this embodiment of the utility model restricts the vertical movement of the self-disassembly lifting device 100 by the positioning member 16, thereby fixing the position of the self-disassembly mandrel 22 in the self-disassembly lifting device 100, preventing unnecessary displacement and tilting of the self-disassembly mandrel 22 during operation, and keeping the self-disassembly mandrel 22 in a vertical state.

[0126] Furthermore, the rigid connection between the positioning component 16 and the limiting support 15 makes the entire self-disassembling lifting device 100 more stable. During lifting and transportation, it can effectively resist deformation even when encountering external forces or vibrations.

[0127] It should be noted that the self-disassembling lifting device 100 provided in this embodiment of the present invention can also be equipped with a disassembly detection module to detect whether the lifting bolts 500 have been completely disassembled.

[0128] The disassembly detection module can be a counter, etc., and is determined by the number of times the operator pulls the flexible transmission element 40. Since different operators pull the flexible transmission element 40 at different distances, the number of pulls can be determined by testing and a margin can be left.

[0129] Alternatively, the disassembly detection module can be a camera powered by a battery, which can determine whether the lifting bolt 500 has been disassembled in place by the image fed back by the camera. The camera can be installed on the self-disassembly lifting device 100 to monitor the disassembly progress of the lifting bolt 500.

[0130] Figure 5 This is a structural schematic diagram of the hoisting equipment provided in this embodiment of the utility model.

[0131] See Figure 5This utility model embodiment also provides a hoisting device, which includes a hoisting bracket 200 and the aforementioned self-disassembling hoisting tool 100.

[0132] The lifting support 200 is provided with a first sling 300 and a second sling 400 on both sides. The first sling 300 is used to lift the equipment, and the self-disassembling lifting device 100 is lifted by the second sling 400. The number of self-disassembling lifting devices 100 corresponds to the number of the second sling 400.

[0133] For example, when two self-disassembling lifting devices 100 are selected according to the size of the tower section 600, the lifting support 200 can adopt a straight or V-shaped structure. The lifting support 200 has two cantilever arms, and each cantilever arm is connected to a second sling 400. Each second sling 400 is connected to the corresponding self-disassembling lifting device 100 using a shackle or other structure.

[0134] When three self-disassembling lifting devices 100 are selected according to the size of the tower section 600, the lifting support 200 can adopt a triangular structure. The lifting support 200 has three cantilever arms, and each cantilever arm is connected to a second sling 400. Each second sling 400 is connected to the corresponding self-disassembling lifting device 100 using a shackle or other structure.

[0135] Multiple lifting points are set on each cantilever, and these lifting points are spaced apart along the length of the corresponding cantilever, so that the appropriate lifting point can be selected for lifting according to the size of the tower section 600 to be lifted.

[0136] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A self-disassembling lifting device, characterized in that, include: The main body of the lifting device is used for lifting onto the lifting equipment. A self-disassembly mechanism is provided on the main body of the lifting device and rotates with the main body of the lifting device. The self-disassembly mechanism is configured to disassemble the lifting bolts to be disassembled under the drive of rotational motion. A transmission mechanism is provided on the main body of the lifting device. The transmission mechanism has a power input shaft and a power output shaft. The axes of the power input shaft and the power output shaft are perpendicular to each other. A first transmission wheel is provided on the power input shaft. A flexible transmission element is driven on the first transmission wheel. The flexible transmission element is configured to transmit driving force to the first transmission wheel. A second transmission wheel is provided on the power output shaft. The second transmission wheel is in transmission cooperation with the self-disassembly mechanism.

2. The self-disassembling lifting device according to claim 1, characterized in that, The transmission mechanism includes: The mounting base is fixedly installed on the main body of the lifting device; A first bevel gear is disposed on the power input shaft; A second bevel gear is disposed on the power output shaft, and the second bevel gear meshes with the first bevel gear. Both the power input shaft and the power output shaft are in transmission engagement with the mounting base.

3. The self-disassembling lifting device according to claim 1, characterized in that, The self-disassembly mechanism includes: A slewing support component is fixedly mounted on the main body of the lifting device; A self-disassembling mandrel is provided on the slewing support component and can rotate relative to the lifting device body. The self-disassembling mandrel is configured to disassemble the lifting bolts to be disassembled under the drive of rotational motion. The rotary transmission wheel is linked to the self-disassembly mandrel. The rotary transmission wheel is engaged with the second transmission wheel, and the number of teeth on the rotary transmission wheel is greater than the number of teeth on the second transmission wheel.

4. The self-disassembling lifting device according to claim 3, characterized in that, The slewing support component includes: The bearing housing is fixedly mounted on the main body of the lifting device; An oilless bearing is fitted inside the bearing housing; The self-disassembling mandrel is inserted into the oil-free bearing.

5. The self-disassembling lifting device according to claim 4, characterized in that, The slewing support component also includes: A friction element is fixedly mounted on the end face of the bearing housing; The shoulder of the self-disassembling mandrel abuts against the friction element.

6. The self-disassembling lifting device according to claim 3, characterized in that, The self-disassembly mechanism also includes: An adapter hanger is detachably connected to the bottom of the self-detachable mandrel, and the bottom of the adapter hanger has an inward clearance groove. The lifting bolts to be disassembled are hinged to the adapter hanger via shackles, and the shackles are located in the clearance groove.

7. The self-disassembling lifting device according to any one of claims 1 to 6, characterized in that, The lifting device body includes: Platform; A protective cover is provided on the support platform and together with the support platform, forms a receiving cavity; A hoisting plate is provided on the supporting platform and connected to the protective cover; Lifting lugs, connected to the lifting plate; The self-disassembly mechanism and the transmission mechanism are both located in the accommodating cavity; the lifting lug is used for hoisting to the lifting equipment.

8. The self-disassembling lifting device according to claim 7, characterized in that, The lifting device body also includes: Two limiting supports are spaced apart on the side of the bearing platform away from the protective cover; The self-disassembly mechanism is located between two spaced-apart limit supports.

9. The self-disassembling lifting device according to claim 8, characterized in that, The lifting device body also includes: A positioning element is disposed between the two limiting supports and connected to each of the limiting supports. The positioning element has a positioning hole through which the lifting bolt to be disassembled passes.

10. A hoisting device, characterized in that, include: The hoisting support has a first sling and a second sling on each side, and the first sling is used to hoist the equipment. And including the self-disassembling lifting device according to any one of claims 1 to 9, the self-disassembling lifting device being mounted on the second sling; The number of self-disassembling lifting devices corresponds to the number of the second slings.

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