Lifting appliance structure

Abstract

The utility model relates to a lifting appliance structure which comprises an annular main body and a lifting structure, the annular main body comprises a plurality of high-temperature-resistant hard arc-shaped parts, the plurality of high-temperature-resistant hard arc-shaped parts are sequentially and detachably connected end to end to form the annular main body, and the lifting structure comprises at least two lifting parts. The hoisting parts are arranged on the circumferential outer wall of the annular body at intervals in the circumferential direction. The annular main body, in contact with the exciter rotor, of the lifting appliance structure is made of a high-temperature-resistant hard material, so that the lifting appliance structure is not influenced by the temperature of the exciter rotor, can be repeatedly used, is high in safety coefficient, is convenient to mount, is not easy to move relative to the rotor in the lifting appliance mounting and lifting process, is not easy to wear a paint film of a rotor winding coil, and is high in safety coefficient. Therefore, the motor insulation performance is ensured.

Description

Technical Field

[0001] This utility model relates to the field of lifting device technology, and in particular to a lifting device structure. Background Technology

[0002] The installation and removal of the diesel generator exciter rotor requires heating the exciter rotor. The heating temperature should be controlled at around 140℃, and the heating time should be around 4 hours. The heating method should not affect the rotor coil. Ensure that the expansion of the exciter rotor is sufficient to fit onto the diesel generator rotor shaft (the exciter rotor and the diesel generator rotor share the same shaft. The exciter rotor needs to be removed from the shaft for maintenance).

[0003] Currently, lifting equipment for exciter rotors typically uses slings made of synthetic polyester filament. These slings have a temperature range of -40℃ to 100℃. During lifting, the slings pass under the exciter rotor and, after tightening, come into contact with the rotor winding coils. To ensure adequate expansion of the exciter rotor after heating, lifting tools need to be installed promptly. However, the high rotor temperature at this point poses a risk of burns and can easily damage the slings. Furthermore, the enamel coating on the rotor winding coils is only 0.1mm thick. During sling tightening and lifting, the slings are prone to relative movement with the rotor. Even with added rubber pads, the friction between the slings and the rotor winding coils can still damage the coils, leading to insulation failure. Therefore, there is an urgent need for a lifting tool that is easy to install, withstands high assembly temperatures, and is less likely to damage the rotor winding coil enamel coating. Utility Model Content

[0004] The purpose of this utility model is to provide a lifting device structure that is easy to install, resistant to assembly temperature, and not easily damaged by the varnish film of the rotor winding coil.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A lifting device structure, comprising:

[0007] The annular body includes multiple high-temperature resistant hard arc-shaped parts, which are detachably connected end to end to form the annular body.

[0008] The hoisting structure includes at least two hoisting parts, each of which is circumferentially spaced on the outer circumferential wall of the annular body.

[0009] In one embodiment of this application, at least one pair of adjacent high-temperature resistant hard arc-shaped portions are detachably and rotatably connected by a first connecting structure, so that the ends of the two high-temperature resistant hard arc-shaped portions connected by the first connecting structure that are away from the first connecting structure can move closer to or further away from each other along a preset direction, the preset direction being perpendicular to the axial direction of the annular body. The remaining adjacent high-temperature resistant hard arc-shaped portions are detachably connected by a second connecting structure.

[0010] In one embodiment of this application, the first connecting structure includes a first connecting portion, a first mating portion, and a first fixing member. The first connecting portion includes a first mounting hole portion, and the first mating portion includes two coaxially arranged second mounting holes portions. A gap is formed between the two second mounting holes portions to accommodate the first mounting hole portion. The first fixing member passes through one second mounting hole portion, the first mounting hole portion, and the other second mounting hole portion in sequence to rotatably connect the first connecting portion and the first mating portion.

[0011] In one embodiment of this application, the first connecting portion further includes a first mounting base, the first mounting hole portion is connected to the high-temperature resistant hard arc-shaped portion through the first mounting base, the first mating portion further includes a second mounting base, the two second mounting holes of the first mating portion are connected to the high-temperature resistant hard arc-shaped portion through the second mounting base, and the first mounting base and the second mounting base are arc-shaped structures with the same curvature as the high-temperature resistant hard arc-shaped portion.

[0012] In one embodiment of this application, the second connection structure includes a second connecting portion, a second mating portion, and a second fixing member. The second connecting portion includes a third mounting hole portion, and the second mating portion includes a fourth mounting hole portion. The second fixing member passes through the third mounting hole portion and the fourth mounting hole portion to connect the second connecting portion and the second mating portion.

[0013] In one embodiment of this application, the axial directions of the first and second mounting holes are perpendicular to the axial directions of the third and fourth mounting holes.

[0014] In one embodiment of this application, the hoisting structure includes two hoisting parts evenly distributed along the circumference of the annular main body.

[0015] In one embodiment of this application, the hoisting unit includes:

[0016] A columnar portion, one end of which is connected to the high-temperature resistant rigid arc-shaped portion;

[0017] A limiting part is connected to the end of the columnar part away from the high-temperature resistant hard arc-shaped part. The diameter of the limiting part is larger than the diameter of the columnar part. The limiting part is used to limit the sling sleeved on the columnar part to prevent the sling from falling off the lifting part.

[0018] In one embodiment of this application, a stop structure is provided axially at intervals on the outer peripheral wall of the columnar portion. The stop structure is used to cooperate with the sling to prevent the sling from sliding along the columnar portion.

[0019] In one embodiment of this application, the stop structure is a limiting groove.

[0020] As can be seen from the above technical solutions, this utility model discloses a lifting device structure, which includes an annular body and a lifting structure. The annular body includes multiple high-temperature resistant hard arc-shaped parts, that is, the annular body includes at least two high-temperature resistant hard arc-shaped parts, and the number can be two, three, four, five or more. The high-temperature resistant hard arc-shaped parts are made of high-temperature resistant and sufficiently strong materials, including but not limited to steel, aluminum alloy, polymer, etc. The multiple high-temperature resistant hard arc-shaped parts are detachably connected end to end to form the annular body. The lifting structure includes at least two lifting parts, and each lifting part is arranged circumferentially on the outer wall of the annular body at intervals.

[0021] When applying the above-mentioned lifting device structure, a ring-shaped main body with an appropriate diameter is selected according to the diameter of the equipment being lifted (such as an exciter rotor). Then, multiple high-temperature resistant hard arc-shaped parts of the ring-shaped main body are sequentially connected around the outer periphery of the equipment being lifted, forming a clamp around the equipment. The two are not easily moved relative to each other. Then, slings are connected to the lifting part of the lifting structure of the lifting device structure to lift the equipment. It can be seen that the ring-shaped main body of the lifting device structure that contacts the exciter rotor is made of high-temperature resistant hard material, which is not affected by the temperature of the exciter rotor. It can be reused repeatedly, has a high safety factor, and is easy to install. During the installation and lifting process, the lifting device and the rotor are not likely to move relative to each other, and the varnish film of the rotor winding coil is not easily worn, thus ensuring the insulation performance of the motor. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of 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 only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1 This is a schematic diagram of the lifting device structure provided in an embodiment of the present utility model;

[0024] Figure 2 A schematic diagram of a high-temperature resistant rigid arc-shaped part in the lifting device structure provided in this embodiment of the utility model;

[0025] Figure 3 This is a front view of a high-temperature resistant rigid arc-shaped part in the lifting device structure provided in this embodiment of the utility model;

[0026] Figure 4 This is a schematic diagram of the first connecting part of the first connecting structure in the lifting device structure provided in this embodiment of the utility model;

[0027] Figure 5 This is a schematic diagram of another high-temperature resistant rigid arc-shaped part in the lifting device structure provided in this embodiment of the utility model;

[0028] Figure 6 This is a front view of another high-temperature resistant rigid arc-shaped part in the lifting device structure provided in this embodiment of the utility model;

[0029] Figure 7 This is a front view of the first fixing member of the first connecting structure in the lifting device structure provided in this embodiment of the utility model;

[0030] Figure 8 A top view of the first fixing member of the first connecting structure in the lifting device structure provided in this embodiment of the utility model;

[0031] Figure 9 This is a schematic diagram of the lifting section of the lifting structure in the lifting device structure provided in the embodiment of this utility model;

[0032] Figure 10 This is a front view of the lifting section of the lifting structure in the lifting device structure provided in the embodiment of this utility model.

[0033] In the picture:

[0034] 100 is the ring-shaped main body; 110 is the first high-temperature resistant hard arc-shaped part; 120 is the second high-temperature resistant hard arc-shaped part;

[0035] 200 is the hoisting part; 210 is the columnar part; 220 is the limiting part; 230 is the limiting groove;

[0036] 300 is the first connecting structure; 310 is the first connecting part; 311 is the first mounting hole part; 311a is the first mounting hole; 312 is the first mounting base; 320 is the first mating part; 321 is the second mounting hole part; 321a is the second mounting hole; 322 is the second mounting base;

[0037] 400 is the second connecting structure; 410 is the second connecting part; 410a is the third mounting hole; 420 is the second mating part; 420a is the fourth mounting hole;

[0038] 500 is the pin; 510 is the shaft body; 510a is the pin hole; 520 is the pin cap. Detailed Implementation

[0039] The core of this utility model is to provide a lifting device structure. The structural design of this lifting device structure makes it easy to install, resistant to assembly temperature, and less likely to damage the varnish film of the rotor winding coil.

[0040] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0041] Please see Figure 1 , Figure 1 This is a schematic diagram of the lifting device structure provided in an embodiment of the present utility model.

[0042] This utility model discloses a lifting device structure, which includes an annular body 100 and a lifting structure.

[0043] The annular body 100 includes multiple high-temperature resistant rigid arc-shaped parts, that is, the annular body 100 includes at least two high-temperature resistant rigid arc-shaped parts, and the number can be two, three, four, five or more. The high-temperature resistant rigid arc-shaped parts are made of high-temperature resistant and sufficiently strong materials, including but not limited to steel, aluminum alloy, polymer, etc. Compared with flexible slings, they will not be taut during lifting, thereby reducing friction on the surface of the hoisted equipment. Multiple high-temperature resistant rigid arc-shaped parts are detachably connected end to end to form the annular body 100.

[0044] The hoisting structure includes at least two hoisting parts 200, each hoisting part 200 being circumferentially spaced on the outer circumferential wall of the annular main body 100. That is, multiple hoisting parts 200 of the hoisting structure can be located in the same high-temperature resistant rigid arc-shaped part, or at least one hoisting part 200 can be located in one high-temperature resistant rigid arc-shaped part, while the remaining hoisting parts 200 are located in other high-temperature resistant rigid arc-shaped parts. When the hoisting structure includes two or more hoisting parts 200, the spacing between each hoisting part 200 can be the same or different depending on the hoisting requirements.

[0045] The hoisting part 200 can be installed on the high-temperature resistant hard arc-shaped part by welding or threaded fastener connection.

[0046] Please see Figure 2 , Figure 3 , Figure 5 and Figure 6 In one specific embodiment of this application, the annular body 100 consists of two symmetrical high-temperature resistant hard arc-shaped parts, that is, the central angles of the two high-temperature resistant hard arc-shaped parts are the same, both being 180°, namely the first high-temperature resistant hard arc-shaped part 110 and the second high-temperature resistant hard arc-shaped part 120.

[0047] The first high-temperature resistant hard arc-shaped part 110 and the second high-temperature resistant hard arc-shaped part 120 are respectively provided with detachable connection structures at both ends. The detachable connection structures at both ends of the first high-temperature resistant hard arc-shaped part 110 and the second high-temperature resistant hard arc-shaped part 120 can be exactly the same or different structures can be used.

[0048] To ensure uniform stress distribution on the two high-temperature resistant rigid arc-shaped sections, the lifting structure includes two lifting parts 200. The two lifting parts 200 are respectively disposed on the first high-temperature resistant rigid arc-shaped section 110 and the second high-temperature resistant rigid arc-shaped section 120, and the distances between the lifting parts 200 and the two ends of either the first high-temperature resistant rigid arc-shaped section 110 or the two ends of the second high-temperature resistant rigid arc-shaped section 120 are equidistant. Of course, the above structure is merely a preferred embodiment provided in this application and is not actually limited to this.

[0049] Compared with the prior art, the lifting device structure provided in this application selects an annular body 100 of appropriate diameter according to the diameter of the equipment being lifted, such as the exciter rotor. Then, multiple high-temperature resistant hard arc-shaped parts of the annular body 100 are sequentially connected to the outer circumference of the exciter rotor to form a clamping state for the exciter rotor, making it difficult for the two to move relative to each other. Then, slings are connected to the lifting part 200 of the lifting structure of the lifting device structure to achieve the lifting of the exciter rotor. It can be seen that the annular body 100 in contact with the exciter rotor is made of high-temperature resistant hard material, which is not affected by the temperature of the exciter rotor. It can be reused repeatedly, has a high safety factor, and is easy to install. During the installation and lifting process, it is not easy for the lifting device and the rotor to move relative to each other, and it is not easy to wear the varnish film of the rotor winding coil, thereby ensuring the insulation performance of the motor.

[0050] It should be noted that although the lifting device structure in this application is mainly designed for lifting exciter rotors, it is not limited to exciter rotors in practical applications. It can also be applied to other cylindrical equipment to be lifted, which is not limited here.

[0051] To facilitate the mounting of the annular body 100 onto the hoisting equipment (such as an exciter rotor), in one embodiment of this application, at least one pair of adjacent high-temperature resistant hard arc-shaped portions are detachably and rotatably connected by a first connecting structure 300, so that the ends of the two high-temperature resistant hard arc-shaped portions connected by the first connecting structure 300 away from the first connecting structure 300 can move closer or further away from each other along a preset direction, the preset direction being perpendicular to the axial direction of the annular body 100, and the remaining adjacent high-temperature resistant hard arc-shaped portions are detachably connected by a second connecting structure 400.

[0052] In the above embodiments, the first connection structure 300 and the second connection structure 400 may adopt the same structure or different structures.

[0053] by Figure 1 Taking the illustrated embodiment as an example, when assembling the annular body 100 to the hoisting equipment, the two high-temperature resistant hard arc-shaped parts 110 and 120 are first connected by a first connecting structure 300. At this time, the second connecting structure 400 at the other end of the first high-temperature resistant hard arc-shaped part 110 and 120 is not connected. In this state, the two high-temperature resistant hard arc-shaped parts 100 can form a structure similar to crab claws. The other ends of the first high-temperature resistant hard arc-shaped part 110 and 120 can be separated from each other and open to form an opening for the hoisting equipment to enter. After the hoisting equipment enters, the second connecting structure 400 at the other end of the first high-temperature resistant hard arc-shaped part 110 and 120 is then connected.

[0054] It is understandable that when the annular body 100 includes multiple high-temperature resistant rigid arc-shaped parts, when assembling the multiple high-temperature resistant rigid arc-shaped parts onto the hoisting equipment, a second connecting structure 400 should be left unconnected. The second connecting structure 400 should be connected after the annular body 100 is clamped onto the hoisting equipment to form a crab claw-like structure, which facilitates the assembly of the annular body 100 onto the hoisting equipment.

[0055] Specifically, the first connecting structure 300 includes a first connecting portion 310, a first mating portion 320, and a first fixing member ( Figure 1 (not shown in the image), where, as Figure 2 , Figure 3 and Figure 4 As shown, the first connecting portion 310 includes a first mounting hole portion 311, on which a first mounting hole 311a is provided. The axial direction of the first mounting hole 311a is parallel to the axial direction of the annular body 100, as shown. Figure 5 and Figure 6As shown, the first mating part 320 includes two coaxially arranged second mounting hole parts 321, and a gap is formed between the two second mounting hole parts 321 to accommodate the first mounting hole part 311. The width of the gap is equal to the axial dimension of the first mounting hole part 311. The two second mounting hole parts 321 are respectively provided with second mounting holes 321a. The two second mounting holes 321a are coaxial and their axial direction is parallel to the axial direction of the annular body 100.

[0056] When connecting the first connecting portion 310 of the first connecting structure 300 to the first mating portion 320, the first mounting hole portion 311 of the first connecting portion 310 is inserted into the gap between the two second mounting holes 321, and the first mounting hole 311a and the second mounting hole 321a are made coaxial. The first fixing member passes through the second mounting hole 321a of one second mounting hole portion 321, the first mounting hole 311a of the first mounting hole portion 311, and the second mounting hole 321a of the other second mounting hole portion 321 in sequence, so that the first connecting portion 310 and the first mating portion 320 are rotatably connected.

[0057] The first fastener can be a threaded fastener, such as a first bolt and a first nut. The axial length of the first bolt is greater than the sum of the axial dimensions of the first mounting hole 311 and the two second mounting holes 321. During assembly, the first bolt passes through the second mounting hole 321a of one second mounting hole 321, the first mounting hole 311a of the first mounting hole 311, and the second mounting hole 321a of the other second mounting hole 321, and then cooperates with the first nut to rotatably connect the first connecting part 310 and the first mating part 320.

[0058] Of course, the first fastener can also be other structures, such as Figure 7 and Figure 8 As shown, in a specific embodiment of this application, the first fixing member includes a pin 500 and a cotter pin (not shown in the figure). The pin 500 includes a shaft body 510 and a pin cap 520. The pin cap 520 is disposed at the first end of the shaft body 510. The second end of the shaft body 510 is provided with a pin hole 510a for cooperating with the cotter pin. The opening direction of the pin hole 510a is perpendicular to the axial direction of the shaft body 510, and the pin hole 510a penetrates the shaft body radially. The axial length of the shaft body 510 needs to be greater than the sum of the axial dimensions of the first mounting hole 311 and the two second mounting holes 321.

[0059] When the first connecting part 310 is connected to the first mating part 320, the second end of the shaft body passes through the second mounting hole 321a of a second mounting hole part 321, the first mounting hole 311a of the first mounting hole part 311, and the second mounting hole 321a of another second mounting hole part 321 in sequence, and then the cotter pin is inserted into the pin hole 510a.

[0060] like Figure 2 As shown, the first connecting part 310 also includes a first mounting base 312. The first mounting hole part 311 is connected to the high-temperature resistant hard arc-shaped part through the first mounting base 312. The first mounting base 312 is an arc-shaped structure with the same curvature as the high-temperature resistant hard arc-shaped part. This can increase the connection area between the first connecting part 310 and the high-temperature resistant hard arc-shaped part and improve the connection strength between the two.

[0061] like Figure 5 As shown, the first mating part 320 also includes a second mounting base 322. The two second mounting holes 321 of the first mating part 320 are connected to the high-temperature resistant hard arc-shaped part through the second mounting base 322. The second mounting base 322 is an arc-shaped structure with the same curvature as the high-temperature resistant hard arc-shaped part, thereby increasing the connection area between the first mating part 320 and the high-temperature resistant hard arc-shaped part and improving the connection strength between the two.

[0062] like Figures 1 to 3 , Figure 5 and Figure 6 As shown, the second connecting structure 400 includes a second connecting part 410, a second mating part 420, and a second fixing member (not shown in the figure). The second connecting part 410 includes a third mounting hole 410a, and a third mounting hole 410a is formed on the third mounting hole 410a. The second mating part 420 includes a fourth mounting hole 420a, and a fourth mounting hole 420a is formed on the fourth mounting hole 420a. The second fixing member passes through the third mounting hole 410a and the fourth mounting hole 420a to connect the second connecting part 410 and the second mating part 420.

[0063] The second fastener can take various forms. For example, in one embodiment, the second fastener includes a second bolt and a second nut. The axial length of the second bolt is greater than the sum of the axial lengths of the third mounting hole 410a and the fourth mounting hole 420a. The second bolt passes through the third mounting hole 410a and the fourth mounting hole 420a and cooperates with the second nut to connect the second connecting part 410 and the second mating part 420.

[0064] In this case, the second connecting part 410 and the second mating part 420 are rectangular blocks. Along the opening direction of the third mounting hole 410a and the fourth mounting hole 420a, one side surface of the third mounting hole 410a and the fourth mounting hole 420a is flush with the end face of the high temperature resistant hard arc-shaped part. During the assembly process, the third mounting hole 410a and the fourth mounting hole 420a abut against each other, and the third mounting hole 410a and the fourth mounting hole 420a are coaxially connected.

[0065] Considering that shear force usually has a greater destructive effect on the fastener, in one embodiment of this application, the axial direction of the first mounting hole 311 and the second mounting hole 321 is perpendicular to the axial direction of the third mounting hole 410a and the fourth mounting hole 420a. With this structure, during the hoisting process, only the first fastener in the first connecting structure 300 bears the shear force, and the second fastener in the second connecting structure 400 bears the pull-out force, thereby improving the strength of the entire hoisting structure.

[0066] It should be noted that, in order to increase the connection strength between the third mounting hole 410a and the fourth mounting hole 420a and the high-temperature resistant hard arc-shaped part, the second connecting part 410 may also include a third mounting base, through which the third mounting hole 410a is connected to the high-temperature resistant hard arc-shaped part. The second mating part 420 may also include a fourth mounting base, through which the fourth mounting hole 420a is connected to the high-temperature resistant hard arc-shaped part. Both the third mounting base and the fourth mounting base are arc-shaped structures with the same curvature as the high-temperature resistant hard arc-shaped part, so as to increase the connection strength between the second connecting part 410 and the second mating part 420 and the high-temperature resistant hard arc-shaped part.

[0067] The hoisting part 200 of the hoisting structure is used to connect with the slings. The hoisting part 200 can adopt a ring-shaped, column-shaped, hook-shaped or other structures.

[0068] exist Figure 1 In the embodiment shown, the annular body 100 is composed of two symmetrical high-temperature resistant hard arc-shaped parts. Correspondingly, in this embodiment, the hoisting structure includes two hoisting parts 200 evenly distributed along the circumference of the annular body 100, that is, each high-temperature resistant hard arc-shaped part is provided with a hoisting part 200.

[0069] like Figure 9 and Figure 10 As shown, in one embodiment of this application, the hoisting part 200 includes a columnar part 210 and a limiting part 220. One end of the columnar part 210 is connected to the high-temperature resistant hard arc-shaped part, and the limiting part 220 is connected to the end of the columnar part 210 away from the high-temperature resistant hard arc-shaped part. The diameter of the limiting part 220 is larger than the diameter of the columnar part 210, so as to form a limiting stop surface for limiting the sling between the limiting part 220 and the columnar part 210. The limiting stop surface faces the direction of the annular body 100. The limiting part 220 is used to limit the sling sleeved on the columnar part 210 to prevent the sling from falling off the hoisting part 200.

[0070] To ensure the stability of the engagement position between the sling and the columnar part 210 during hoisting, and to prevent the sling from reciprocating along the axial direction of the columnar part 210, thereby ensuring uniform stress on the lifting structure during hoisting, Figure 9 and Figure 10In the embodiment shown, a stop structure is provided axially at intervals on the outer peripheral wall of the columnar portion 210. The stop structure is used to cooperate with the sling to prevent the sling from sliding along the columnar portion 210.

[0071] The stop structure can be a groove-shaped structure that is recessed from the surface of the columnar part 210 toward the axis, or a protrusion structure that is raised from the surface of the columnar part 210 toward the direction away from the axis. Of course, it can also be a through hole opened on the columnar part 210 for the sling to pass through, as long as it can limit the connection position between the sling and the hoisting part 200.

[0072] In one specific embodiment of this application, the stopping structure is a limiting groove 230, which is achieved by varying the diameter of the columnar portion 210, either entirely or partially, as follows: Figure 10 As shown, the columnar part 210 includes a mounting part and a sling fitting part. One end of the sling fitting part is connected to the limiting part 220, and the other end is connected to the mounting part. The diameter of the sling fitting part gradually increases from the middle to both ends, thereby forming an annular limiting groove 230 in the circumferential direction.

[0073] It should be noted that the various embodiments in this specification are described in a progressive manner, with each embodiment focusing on the differences from other embodiments. The same or similar parts between the various embodiments can be referred to each other.

[0074] This article uses specific examples to illustrate the principles and implementation methods of this utility model. The descriptions of the above embodiments are only for the purpose of helping to understand the core ideas of this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made to this utility model without departing from the principles of this utility model, and these improvements and modifications also fall within the protection scope of the claims of this utility model.

Claims

1. A lifting device structure, characterized in that, include: The annular body (100) includes multiple high-temperature resistant hard arc-shaped parts, which are detachably connected end to end to form the annular body (100). The hoisting structure includes at least two hoisting parts (200), each of the hoisting parts (200) being circumferentially spaced on the outer circumferential wall of the annular body (100). The hoisting structure includes two hoisting parts (200) evenly distributed circumferentially along the annular body (100). Each hoisting part (200) includes a columnar part (210) and a limiting part (220). One end of the columnar part (210) is connected to the high-temperature resistant rigid arc-shaped part, and the limiting part (220) is connected to the end of the columnar part (210) away from the high-temperature resistant rigid arc-shaped part. The diameter of the limiting part (220) is larger than the diameter of the columnar part (210). The limiting part (220) is used to limit the sling sleeved on the columnar part (210) to prevent the sling from falling off the hoisting part (200).

2. The lifting device structure according to claim 1, characterized in that, At least one pair of adjacent high-temperature resistant hard arc-shaped portions are detachably and rotatably connected by a first connecting structure (300) so that the ends of the two high-temperature resistant hard arc-shaped portions connected by the first connecting structure (300) away from the first connecting structure (300) can move closer or further away from each other along a preset direction, the preset direction being perpendicular to the axial direction of the annular body (100), and the remaining adjacent high-temperature resistant hard arc-shaped portions are detachably connected by a second connecting structure (400).

3. The lifting device structure according to claim 2, characterized in that, The first connecting structure (300) includes a first connecting part (310), a first mating part (320), and a first fixing member. The first connecting part (310) includes a first mounting hole (311), and the first mating part (320) includes two coaxially arranged second mounting holes (321). A gap is formed between the two second mounting holes (321) to accommodate the first mounting hole (311). The first fixing member passes through one second mounting hole (321), the first mounting hole (311), and the other second mounting hole (321) in sequence, so as to rotatably connect the first connecting part (310) and the first mating part (320).

4. The lifting device structure according to claim 3, characterized in that, The first connecting part (310) further includes a first mounting base (312), the first mounting hole part (311) is connected to the high temperature resistant hard arc part through the first mounting base (312), the first mating part (320) further includes a second mounting base (322), the two second mounting holes (321) of the first mating part (320) are connected to the high temperature resistant hard arc part through the second mounting base (322), and the first mounting base (312) and the second mounting base (322) are arc-shaped structures with the same curvature as the high temperature resistant hard arc part.

5. The lifting device structure according to claim 3 or 4, characterized in that, The second connection structure (400) includes a second connection part (410), a second mating part (420), and a second fastener. The second connection part (410) includes a third mounting hole, and the second mating part (420) includes a fourth mounting hole. The second fastener passes through the third mounting hole and the fourth mounting hole to connect the second connection part (410) and the second mating part (420).

6. The lifting device structure according to claim 5, characterized in that, The axial directions of the first mounting hole (311) and the second mounting hole (321) are perpendicular to the axial directions of the third mounting hole and the fourth mounting hole.

7. The lifting device structure according to any one of claims 1-4, characterized in that, Stop structures are provided axially at intervals on the outer peripheral wall of the columnar part (210). The stop structures are used to cooperate with the sling to prevent the sling from sliding along the columnar part (210).

8. The lifting device structure according to claim 7, characterized in that, The stop structure is a limiting groove (230).

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