Cabin hoisting tool

Abstract

The utility model provides a cabin hoisting tool, which is used for being arranged at the top of a cabin and comprises a hoisting pulley block, a hoisting device, a hoisting device and a hoisting device, the main beam is used for bearing the hoisting pulley block and is used for enabling the hoisting pulley to reciprocate along the length direction of the main beam; the walking pulley blocks are arranged at the ends of the main beams and correspond to the track beams on the top of the cabin respectively, and the walking pulley blocks are used for being arranged on the corresponding track beams in a sliding mode. According to the engine room hoisting tool, the main beam capable of sliding along the track beam is constructed through the track beam at the top of the engine room, the hoisting pulley block is further borne through the main beam, and due to the fact that the structural strength of the track beam at the top of the engine room is high, the loading capacity can meet the requirement for hoisting parts in the engine room.

Description

Technical Field

[0001] The utility model relates to the field of wind power generation, in particular to a cabin lifting tool. Background Art

[0002] As the scale of wind power generation continues to expand, the number of wind turbine unit maintenance is also increasing. A large number of units need to replace some key components after a certain period of operation, and these components often weigh hundreds of kilograms. Since the number of available hanging points on the top of the wind turbine nacelle directly above the unit is relatively small, and the weight that can be carried is extremely limited, it brings great difficulties to the maintenance of the unit. There are usually two lifting schemes used in the existing technology. One scheme is to use some hanging points on the top of the nacelle directly above the unit to lift heavy objects by installing eye screws and hand winches, but the load capacity of the hanging points is limited, and there is a risk of damage and falling when lifting heavy objects. Another scheme is to build a ground-mounted steel frame in the nacelle and use the crossbeams of the steel frame to lift heavy objects. Although the load capacity can be guaranteed, the process of building the steel frame in the nacelle is relatively cumbersome, time-consuming and labor-intensive. Utility Model Content

[0003] The technical problem to be solved by the present invention is that it is difficult to lift components in the nacelle of a wind turbine in the prior art, and accordingly a lifting tool is provided.

[0004] The utility model solves the above technical problems through the following technical solutions:

[0005] A cabin lifting tool, which is used to be arranged on the top of the cabin, and the cabin lifting tool comprises:

[0006] A lifting pulley block, the lifting pulley block is used to connect the lifting equipment;

[0007] A main beam, the main beam being used to carry a lifting pulley assembly and to allow the lifting pulley to reciprocate along the length direction of the main beam;

[0008] The walking pulley group is arranged at the end of the main beam and is respectively arranged corresponding to the track beams on the top of the cabin. The walking pulley group is used to slide on the corresponding track beams.

[0009] The cabin lifting fixture is configured by arranging traveling pulley blocks at the ends of the main beams corresponding to the track beams on the cabin top, and sliding the traveling pulley blocks on the corresponding track beams to utilize the track beams on the cabin top to construct a main beam that can slide along the track beams, and further using the main beam to carry the lifting pulley blocks so that the lifting pulley blocks can move back and forth along the length direction of the main beam, so as to meet the position adjustment requirements of the connected lifting equipment through the displacement of the traveling pulley blocks relative to the track beams and the displacement of the lifting pulley blocks relative to the main beam, and the structural strength of the track beams on the cabin top is high, and the load-bearing capacity can meet the requirements of lifting parts in the cabin.

[0010] Preferably, along the width direction of the main beam, there are protruding parts extending from the main beam on both sides of the main beam, and the protruding parts have an upper surface for installing the lifting pulley block.

[0011] The main beam is extended outward along its width direction to form an upper surface for installing a lifting pulley block, which can improve the bearing capacity and limiting capacity of the lifting pulley block, thereby improving the load capacity and lifting stability.

[0012] Preferably, the lifting pulley assembly includes at least two lifting pulleys corresponding to each of the protruding parts, and the two lifting pulleys are respectively rotatably arranged on the upper surface of the protruding part.

[0013] The lifting pulley block realizes multi-point contact with each protruding portion by providing at least two lifting pulleys corresponding to each protruding portion, so as to improve the operational stability of the lifting pulley block in reciprocating movement on the main beam.

[0014] Preferably, the walking pulley set is detachably connected to the main beam.

[0015] By making the traveling pulley block detachable relative to the main beam, the disassembly and assembly of the main components of the cabin lifting fixture can be achieved, so that the cabin lifting fixture can be installed between the two track beams on the top of the cabin, thereby improving the disassembly and assembly efficiency.

[0016] Preferably, along the length direction of the main beam, at both ends of the main beam there are respectively provided with mounting docking portions for the lifting pulley block to slide into or out of the main beam;

[0017] There are two walking pulley assemblies, and the two walking pulley assemblies are detachably connected to the two mounting docking portions of the main beam.

[0018] By arranging mounting docking parts at both ends of the main beam, it is convenient for the lifting pulley block to slide in or out, and it is convenient for the lifting pulley block to be disassembled and assembled relative to the main beam.

[0019] Preferably, when the traveling pulley block is connected to the mounting docking portion, the traveling pulley block is used to block the mounting docking portion to prevent the lifting pulley block from sliding into or out of the main beam through the mounting docking portion.

[0020] By installing the traveling pulley block at the corresponding mounting docking portion of the main beam, the traveling pulley block is installed relative to the main beam to block the mounting docking portion. When the traveling pulley block is not installed, the lifting pulley block can be easily installed into or removed from the main beam through the mounting docking portion. After the traveling pulley block is installed, the traveling pulley block blocks the mounting docking portion, preventing the lifting pulley block from falling out of the main beam.

[0021] Preferably, the traveling pulley assembly includes traveling pulleys arranged in pairs, an accommodating space for accommodating the track beam is formed between the paired traveling pulleys, and the traveling pulleys are used to be slidably arranged on the track beam.

[0022] By arranging the traveling pulleys in pairs and utilizing the space between the traveling pulleys to accommodate the track beam, the connection stability between the traveling pulley assembly and the track beam is improved.

[0023] Preferably, the walking pulley group also includes a first mounting portion, a second mounting portion and a connecting piece, and the first mounting portion and the second mounting portion are relatively detachably arranged along the length direction of the main beam through the connecting piece, and the paired walking pulleys are respectively arranged on the first mounting portion and the second mounting portion, and the track beam can enter and exit the accommodating space by disassembly between the first mounting portion and the second mounting portion; wherein, the first mounting portion includes an adapter plate, and the adapter plate is detachably connected to both ends of the main beam.

[0024] By setting a connecting piece, the first mounting part and the second mounting part of the walking pulley group are set to be relatively detachable along the length direction of the main beam, so that the walking pulley can limit the track beam by the relative installation of the first mounting part and the second mounting part. At the same time, the first mounting part and the second mounting part can be relatively disassembled by the connecting piece to realize the separation of the walking pulley group from the track beam, thereby providing a relatively simple solution for disassembling and assembling the walking pulley group relative to the track beam.

[0025] Preferably, the walking pulley assembly further includes a locking mechanism, which is provided on the first mounting portion and / or the second mounting portion, and can be switched between a locked state and a released state;

[0026] When the locking mechanism is in a locked state, the locking mechanism contacts the surface of at least one of the walking pulleys, so that the locking mechanism is used to lock the rotational freedom of at least one of the walking pulleys. When the locking mechanism is in a released state, the locking mechanism disengages from the surface of the walking pulley to release the rotation restriction on the walking pulley.

[0027] By setting up a locking mechanism, the rotational freedom of at least one walking pulley can be controlled, and the position of the connected main beam can be fixed by locking the walking pulley, so as to improve the lifting stability of the cabin lifting tool when lifting parts.

[0028] Preferably, the walking pulley group also includes a limiting wheel, which is located below the walking pulley. The limiting wheel is used to abut against the lower surface of the track beam and roll on the lower surface of the track beam to limit the freedom of movement of the walking pulley group in the upward direction relative to the track beam.

[0029] By further arranging a limiting wheel, the purpose of limiting the freedom of movement of the walking pulley group relative to the track beam in the upward direction is achieved, thereby preventing the walking pulley group from moving upward and separating from the track beam when bouncing relative to the track beam.

[0030] The positive progress effect of this utility model is:

[0031] The cabin lifting fixture uses the track beam on the top of the cabin to construct a main beam that can slide along the track beam, and further uses the main beam to carry the lifting pulley set. Due to the high structural strength of the track beam on the top of the cabin, the load capacity can meet the needs of lifting parts in the cabin.

[0032] At the same time, the lifting pulley group can move back and forth along the length direction of the main beam, and the displacement of the walking pulley group relative to the track beam and the displacement of the lifting pulley group relative to the main beam can meet the needs of adjusting the position of the connected lifting equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 The figure is a schematic structural diagram of a cabin lifting tooling according to an embodiment of the present invention.

[0034] Figure 2 This is a schematic diagram of the cross-sectional structure of the main beam of an embodiment of the present utility model.

[0035] Figure 3 This is a side structural schematic diagram of a walking pulley assembly according to an embodiment of the present invention.

[0036] Figure 4 This is a schematic top view of the structure of a walking pulley assembly according to an embodiment of the present invention.

[0037] Description of reference numerals:

[0038] Engine room lifting tool 100

[0039] Lifting pulley block 1, lifting pulley 11

[0040] Main beam 2, length direction A, width direction B

[0041] Extension portion 21, mounting docking portion 22

[0042] Walking pulley set 3

[0043] Walking pulley 31

[0044] First mounting portion 32, adapter plate 321

[0045] Second mounting portion 33

[0046] Accommodation space 34

[0047] Limit wheel 35

[0048] Connector 36

[0049] Locking mechanism 37

[0050] Track beam 201

[0051] Hand chain hoist 202 DETAILED DESCRIPTION

[0052] A preferred embodiment is given below, and the present invention is described more clearly and completely in conjunction with the accompanying drawings.

[0053] In order to solve the current problem of difficulty in lifting heavy objects such as components in the nacelle of a wind turbine, the utility model provides a nacelle lifting tool that is connected to the track beam on the top of the nacelle and utilizes the strong load-bearing capacity of the track beam to achieve the lifting of heavy objects.

[0054] Specifically, such as Figure 1 As shown, the cabin lifting tooling 100 in this embodiment includes a lifting pulley block 1, a main beam 2 and a traveling pulley block 3. Among them, the lifting pulley block 1 is used to connect lifting equipment, such as a hand winch 202, etc., to achieve the purpose of connecting heavy objects and lifting. The main beam 2 extends along its length direction A, and the extended length direction A is consistent with the width direction of the track beam 201. The main beam 2 is used to carry the lifting pulley block 1 and to allow the lifting pulley 11 to move back and forth along the length direction of the main beam 2. In this embodiment, a traveling pulley block 3 is respectively provided at both ends of the length direction A of the main beam 2. The two traveling pulley blocks 3 are respectively provided corresponding to the two track beams 201 on the top of the cabin, and the traveling pulley blocks 3 are respectively used to slide on the corresponding track beams 201.

[0055] The cabin lifting tool 100 uses the track beam 201 on the top of the cabin to construct a main beam 2 that can slide along the track beam 201, and further uses the main beam 2 to carry the lifting pulley group 1. Due to the high structural strength of the track beam 201 on the top of the cabin, the load capacity can meet the needs of lifting parts in the cabin.

[0056] At the same time, the lifting pulley group 1 can move back and forth along the horizontal extension direction of the main beam 2, and the displacement of the walking pulley group 3 relative to the track beam 201 and the displacement of the lifting pulley group 1 relative to the main beam 2 can meet the needs of adjusting the position of the connected lifting equipment.

[0057] Of course, in other embodiments, the number of traveling pulley sets 3 should be consistent with the number of track beams 201 on which the main beam 2 slides. For example, if there is only one track beam 201 on the cabin roof for the main beam 2 to connect to, then the number of corresponding traveling pulley sets 3 is one, to slide on that track beam 201. If there are three or more track beams 201 on the cabin roof for the main beam 2 to connect to, then three or more traveling pulley sets 3 can be provided corresponding to these track beams, to slide on the corresponding track beams 201. The specific arrangement can be adjusted accordingly based on the number of track beams 201 on the cabin roof.

[0058] Since the track beam 201 is usually not located directly above the unit, it is difficult to use it during normal unit maintenance. The cabin lifting fixture 100 provided by the present invention utilizes the two track beams 201 that are not located directly above the unit by setting a main beam 2 between the two track beams 201, so as to carry and lift heavy objects through the two track beams 201, thereby solving the current problem of difficulty in lifting heavy objects such as components in the cabin of a wind turbine.

[0059] The lifting pulley block 1 that reciprocates on the main beam 2 can also be implemented by using the pulley block on existing lifting equipment, or it can be designed and manufactured based on the size of the main beam 2. If the pulley block on existing lifting equipment is used, the size of the main beam 2 needs to be specifically designed to be compatible with the pulley block of the lifting equipment.

[0060] In this embodiment, if Figure 2 As shown, along the width direction B of the main beam 2 (also the horizontal direction in this embodiment), there are horizontally extended outward protrusions 21 on both sides of the main beam 2, so that the cross-section of the main beam 2 is an inverted "T" shape, wherein Figure 1Only the extension 21 on one side of the main beam 2 is shown. The extension 21 has an upper surface for supporting the lifting pulley block 1, enabling the lifting pulley 11 of the lifting pulley block 1 to roll. The main beam 2 extends horizontally outward on both sides along the width direction B to form upper surfaces for supporting the lifting pulley block 1. This improves the load-bearing capacity and limiting capability of the lifting pulley block 1, thereby enhancing load capacity and lifting stability.

[0061] In one embodiment of the present application, the corresponding lifting pulley block 1 has two lifting pulleys 11 corresponding to the extension 21, and these two lifting pulleys 11 respectively roll on the upper surface of the extension 21. By providing two lifting pulleys 11 corresponding to each extension 21, the lifting pulley block 1 achieves multi-point contact with the extension 21, thereby improving the operational stability of the lifting pulley block 1 during reciprocating movement on the main beam 2. Of course, in other embodiments, more lifting pulleys 11 may be provided on each extension 21 to further improve operational stability.

[0062] In one embodiment of the present application, the traveling pulley block 3 is relatively removable from the main beam 2 to facilitate assembly and disassembly of the main components of the cabin lifting fixture 100, thereby facilitating the installation of the cabin lifting fixture 100 between the two track beams 201 at the top of the cabin and improving assembly and disassembly efficiency. Specifically, the cross-section of the main beam 2 in this embodiment is an inverted "T" shape. By moving the traveling pulley block 3 to the end of the main beam 2 in the longitudinal direction A, it can be removed from the end of the main beam 2, achieving disassembly relative to the main beam 2, thereby facilitating replacement of the traveling pulley block 3 or adjustment of the number of traveling pulley blocks 3 on the main beam 2. That is, in this embodiment, along the longitudinal direction A of the main beam 2, at each end of the main beam 2, there is a mounting docking portion 22 for the lifting pulley block 1 to slide into or out of the main beam 2. At the same time, the two traveling pulley blocks 3 are detachably connected to the two mounting docking portions 22 at each end of the main beam 2, and are used to block the mounting docking portions 22 to prevent the lifting pulley block 1 from sliding into or out of the mounting docking portions 22.

[0063] By providing mounting docking portions 22 at both ends of the main beam 2 , the lifting pulley block 1 can slide into or out of the main beam 2 , thereby facilitating the assembly and disassembly of the lifting pulley block 1 relative to the main beam 2 .

[0064] Furthermore, by detachably connecting the traveling pulley block 3 to the two mounting docking portions 22 at both ends of the main beam 2, the mounting docking portions 22 can be blocked by utilizing the installation of the traveling pulley block 3 relative to the main beam 2. When the traveling pulley block 3 is not installed, the lifting pulley block 1 can be conveniently installed into or removed from the main beam 2 via the mounting docking portions 22. After the traveling pulley block 3 is installed, the mounting docking portions 22 are blocked by the traveling pulley block 3, preventing the lifting pulley block 1 from falling out of the main beam 2.

[0065] In one embodiment of the present application, in order to facilitate installation and removal, as Figure 1 and Figure 3 As shown, the lifting pulley block 1 and the main beam 2 are fixed by bolts, and the bolts used in the various components of the cabin lifting fixture 100 are preferably of the same specifications to facilitate compatibility. In other embodiments, the bolts used in the various components of the cabin lifting fixture 100 may also be of different specifications.

[0066] like Figure 3 and Figure 4 As shown, the traveling pulley assembly 3 includes traveling pulleys 31 arranged in pairs, and an accommodating space 34 for accommodating the track beam 201 is formed between the paired traveling pulleys 31. By utilizing the space between the traveling pulleys 31 to accommodate the track beam 201, the connection stability between the traveling pulley assembly 3 and the track beam 201 is improved.

[0067] Specifically, the walking pulley assembly 3 also includes a first mounting portion 32, a second mounting portion 33, and a connecting member 36. The first mounting portion 32 and the second mounting portion 33 are relatively detachable along the length direction A of the main beam 2 via the connecting member 36, and the paired walking pulleys 31 are respectively arranged on the first mounting portion 32 and the second mounting portion 33. Specifically, in one embodiment of the present application, the connecting member 36 uses a tensioning pin to achieve connection. By pressing the two ends of the tensioning pins against the first mounting portion 32 and the second mounting portion 33 and fixing them with screws, the first mounting portion 32 and the second mounting portion 33 can be disassembled and assembled to expand the horizontal size of the accommodating space 34, allowing the track beam 201 to freely enter and exit the accommodating space 34. In other embodiments, the connecting member 36 can also use other connection structures to achieve a reliable connection between the first mounting portion 32 and the second mounting portion 33.

[0068] Through this structural setting scheme, the first mounting portion 32 and the second mounting portion 33 are relatively installed to achieve the limitation of the walking pulley 31 on the track beam 201. At the same time, the first mounting portion 32 and the second mounting portion 33 are relatively disassembled to achieve the separation of the walking pulley group 3 from the track beam 201, thereby providing a relatively simple solution for disassembling and assembling the walking pulley group 3 relative to the track beam 201.

[0069] At the same time, if Figure 3As shown, in this embodiment, an adapter plate 321 is provided on the right side of the first mounting portion 32. The adapter plate 321 and the first mounting portion 32 are an integrated structure, so that the first mounting portion 32 is "L"-shaped as a whole. A reinforcement plate is further provided to reinforce the adapter plate 321. The adapter plate 321 extends outward from the right side of the first mounting portion 32 so as to be fixedly connected to the lower surface of the mounting docking portion 22 at both ends of the main beam 2 through the adapter plate 321 by bolts. The reinforcement plate has at least one side connected to the first mounting portion 32 and one side connected to the adapter plate 321. In other embodiments, a relatively separate adapter plate 321 can be provided on the first mounting portion 32 by welding or screw connection to achieve the purpose of connection with the main beam 2.

[0070] like Figure 3 and Figure 4 As shown, the walking pulley group 3 also includes a limiting wheel 35, which is located below the walking pulley 31. The limiting wheel 35 is used to abut against the lower surface of the track beam 201 to limit the freedom of movement of the walking pulley group 3 in the upward direction relative to the track beam 201, so as to prevent the walking pulley group 3 from moving upward and separating from the track beam 201 when it bounces relative to the track beam 201.

[0071] Specifically, in this embodiment, the first mounting portion 32 and the second mounting portion 33 are detachably connected via the ends of the limiting wheels 35, thereby providing a relatively simple solution for disassembling and assembling the walking pulley assembly 3. Specifically, a single walking pulley assembly 3 includes two limiting wheels 35. Relying solely on the two limiting wheels 35 to connect the first mounting portion 32 and the second mounting portion 33 may not be reliable enough. Therefore, in this embodiment, a connecting member 36 is further provided below the two limiting wheels 35 to further ensure the connection between the first mounting portion 32 and the second mounting portion 33.

[0072] like Figure 4As shown, the traveling pulley assembly 3 further includes a locking mechanism 37, which is disposed on the first mounting portion 32 and can be switched between a locked state and a released state. When the locking mechanism 37 is in the locked state, it contacts the surface of one of the traveling pulleys 31, thereby locking the rotational freedom of the traveling pulley 31. When the locking mechanism 37 is in the released state, the locking mechanism 37 disengages from the surface of the traveling pulley 31, releasing the rotational restriction on the traveling pulley 31. The locking mechanism 37 is provided to control the rotational freedom of the traveling pulley 31, thereby locking the traveling pulley 31 and fixing the position of the connected main beam 2, thereby improving the lifting stability of the cabin lifting fixture 100 when lifting components. Specifically, in this embodiment, the locking mechanism 37 is a screw threadedly connected to the side of the first mounting portion 32. By turning the screw, the contact relationship between the screw tip and the surface of the traveling pulley 31 is changed, thereby locking the rotation of the traveling pulley 31. Of course, in other embodiments, the locking mechanism 37 may also be provided on the second mounting portion 33 to lock the rotation of the walking pulley 31 located on the side of the second mounting portion 33 .

[0073] In one embodiment of the present application, Figure 4 As shown, a single walking pulley assembly 3 includes two locking mechanisms 37, which are respectively arranged on the sides of the two walking pulleys 31 of the first mounting portion 32. The locking mechanism 37 is specifically a screw screwed on the threaded hole of the bracket of the first mounting portion 32. By rotating the screw in the forward direction, the end of the screw is pressed against the surface of the walking pulley 31, thereby preventing the walking pulley 31 from rotating by applying friction. By rotating the screw in the reverse direction, the end of the screw is moved away from the surface of the walking pulley 31, and the walking pulley 31 can rotate freely. Of course, in other embodiments, any locking mechanism 37 scheme existing in the prior art can also be adopted to achieve the purpose of fixing the position of the connected main beam 2 by preventing the rotation of the walking pulley 31.

[0074] Although specific embodiments of the present invention have been described above, those skilled in the art will appreciate that these are merely illustrative and that the scope of protection of the present invention is defined by the appended claims. Those skilled in the art may make various changes or modifications to these embodiments without departing from the principles and essence of the present invention, and such changes and modifications are intended to fall within the scope of protection of the present invention.

Claims

1. A cabin lifting tool, characterized in that: It is used to be installed on the top of the cabin, and the cabin lifting tooling includes: A lifting pulley block, the lifting pulley block is used to connect the lifting equipment; a main beam, the main beam being used to carry the lifting pulley assembly and to allow the lifting pulley to reciprocate along the length direction of the main beam; The walking pulley group is arranged at the end of the main beam and is respectively arranged corresponding to the track beams on the top of the cabin. The walking pulley group is used to slide on the corresponding track beams.

2. The cabin lifting tool according to claim 1, characterized in that: Along the width direction of the main beam, there are protruding parts extending from the main beam on both sides of the main beam, and the protruding parts have upper surfaces for installing the lifting pulley block.

3. The cabin lifting tool according to claim 2, characterized in that: The lifting pulley assembly includes at least two lifting pulleys corresponding to each of the protruding parts, and the two lifting pulleys are respectively and rotatably arranged on the upper surface of the protruding part.

4. The cabin lifting tool according to claim 1, characterized in that: The walking pulley set is detachably connected to the main beam.

5. The cabin lifting tool according to claim 4, characterized in that: Along the length direction of the main beam, at both ends of the main beam there are respectively provided mounting docking portions for the lifting pulley block to slide into or out of the main beam; There are two walking pulley assemblies, and the two walking pulley assemblies are detachably connected to the two mounting docking portions of the main beam.

6. The cabin lifting tool according to claim 5, characterized in that: When the traveling pulley block is connected to the mounting docking portion, the traveling pulley block is used to block the mounting docking portion to prevent the lifting pulley block from sliding into or out of the main beam through the mounting docking portion.

7. The cabin lifting tool according to claim 1, characterized in that: The traveling pulley assembly includes traveling pulleys arranged in pairs, an accommodating space for accommodating the track beam is formed between the paired traveling pulleys, and the traveling pulleys are used to be slidably arranged on the track beam.

8. The cabin lifting tool according to claim 7, characterized in that: The walking pulley block also includes: A first mounting portion, a second mounting portion, and a connecting member, wherein the first mounting portion and the second mounting portion are opposite to each other and detachably arranged along the length direction of the main beam via the connecting member, and the paired walking pulleys are respectively arranged on the first mounting portion and the second mounting portion; The track beam can enter and exit the accommodation space by disassembling the first installation portion and the second installation portion; Wherein, the first mounting portion includes an adapter plate, and the adapter plate is detachably connected to both ends of the main beam.

9. The cabin lifting tool according to claim 8, characterized in that: The walking pulley assembly further includes a locking mechanism, which is provided on the first mounting portion and / or the second mounting portion, and can be switched between a locked state and a released state; When the locking mechanism is in a locked state, the locking mechanism contacts a surface of at least one of the travel pulleys to lock the rotational freedom of the contacted travel pulley; When the locking mechanism is in a released state, the locking mechanism is disengaged from the surface of the walking pulley to release the rotation restriction on the walking pulley.

10. The cabin lifting tool according to claim 8, characterized in that: The walking pulley group also includes a limiting wheel, which is located below the walking pulley. The limiting wheel is used to abut against the lower surface of the track beam and roll on the lower surface of the track beam to limit the freedom of movement of the walking pulley group relative to the track beam in the upward direction.

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