Dismantling device

Abstract

The present disclosure relates to a dismounting device for dismounting a to-be-dismounted part sleeved on a shaft part provided on a box, wherein the dismounting device comprises a top dismounting part having a matching surface configured as an arc surface, an axis of the matching surface being parallel to or coinciding with an axis of the shaft part; a telescopic structure, a first end of the telescopic structure being in abutment with an end of the top dismounting part away from the to-be-dismounted part, a second end of the telescopic structure being in abutment with the box, a telescopic direction of the telescopic structure being parallel to or coinciding with the axis of the matching surface, so that when the telescopic structure is extended, the telescopic structure drives the top dismounting part to abut against the to-be-dismounted part and pushes the to-be-dismounted part to move along an axial direction of the shaft part. The technical solution provided by the present disclosure can reduce the number of dismounting parts and shorten the maintenance time.

Description

Technical Field

[0001] This disclosure relates to the technical field of wind turbine assembly and disassembly, and particularly to a disassembly device. Background Technology

[0002] Shaft movement is a common and significantly hazardous phenomenon during the long-term operation of wind power generation equipment. Gearbox shafts are highly susceptible to irregular axial movement due to complex aerodynamic loads, mechanical transmission stresses, installation errors, and component wear. Initially, this shaft movement can cause contact wear on bearings and retaining rings.

[0003] In related technologies, disassembling small parts such as bearings and retaining rings requires disassembling the housing and shaft. The disassembly of large parts takes a long time, thereby increasing the downtime of wind power generation equipment. Utility Model Content

[0004] The purpose of this disclosure is to provide a disassembly device that can reduce the number of parts that need to be disassembled and reduce maintenance time.

[0005] According to this disclosure, a disassembly device is provided for disassembling a component to be disassembled, which is mounted on a shaft and disposed on a housing. The disassembly device includes: a top disassembly component having a mating surface configured as an arc surface, the axis of which is parallel to or coincides with the axis of the shaft; and a telescopic structure, the first end of which abuts against the end of the top disassembly component away from the component to be disassembled, the second end of which abuts against the housing, the telescopic direction of which is parallel to or coincides with the axis of the mating surface, so that when the telescopic structure extends, it causes the top disassembly component to abut against the component to be disassembled and pushes the component to be disassembled to move along the axial direction of the shaft.

[0006] The technical solution disclosed herein involves a top-disassembly component whose mating surface axis is parallel or coincident with the axis of the shaft. This allows the top-disassembly component to slide along the mating surface in a direction parallel to the shaft axis. When the top-disassembly component contacts the component to be disassembled, it applies a force parallel to the shaft axis, facilitating the removal of the component from the shaft. Furthermore, the disassembly device can disassemble the component online without disassembling the shaft, reducing the number of parts to be disassembled and lowering the disassembly difficulty and maintenance time.

[0007] Furthermore, by utilizing the extension of the telescopic structure to push the top disassembly component to remove the part to be disassembled, no direct manual force is required. This easily handles parts that are difficult to disassemble manually, such as those with interference fits or those that are corroded and stuck together, significantly reducing disassembly difficulty and improving work efficiency. Moreover, the extension direction of the telescopic structure is parallel to or coincides with the axis of the mating surface, ensuring that the force applied by the telescopic structure to the top disassembly component is parallel to the axial direction of the shaft, guaranteeing consistency in the direction of force application, and further facilitating the removal of the part from the shaft.

[0008] Optionally, the top-removing component includes a top-out portion and a connecting plate, wherein the top-out portion is configured as an arc-shaped structure, the top-out portion is used to abut against the component to be removed, and the inner wall surface of the top-out portion forms the mating surface; the connecting plate extends radially outward from the outer wall surface of the top-out portion, and the first end of the telescopic structure abuts against the connecting plate.

[0009] The above solution achieves two advantages: First, the connecting plate increases the contact area between the telescopic structure and the top disassembly component, facilitating force application. Second, the connecting plate increases the distance between the telescopic structure and the circumferential surface of the shaft, preventing interference between them and simplifying installation.

[0010] Optionally, the telescopic structure has two components, which are arranged adjacent to opposite ends of the connecting plate in the circumferential direction.

[0011] The above method can ensure that the force on the top dismantling component is uniform, avoid the top dismantling component being deflected or having a tendency to deflect due to force on one end, and improve the dismantling stability.

[0012] Optionally, the telescopic structure includes a hollow jack and a connecting rod, wherein one end of the hollow jack is connected to the connecting plate, and the other end of the hollow jack is connected to the housing via the connecting rod.

[0013] Through the above solution, the hollow jack can be connected to the housing via a connecting rod. This connecting rod compensates for the insufficient axial length of the hollow jack to meet the distance between the dismantling component and the corresponding connection position on the housing, thus ensuring the stable operation of the dismantling device.

[0014] Optionally, the mating surface mates with the circumferential surface of the shaft.

[0015] Optionally, the disassembly device further includes a lifting member; the lifting member is configured as an arc-shaped structure, the inner wall surface of the lifting member mates with the circumferential surface of the shaft, and the outer wall surface of the lifting member mates with the mating surface.

[0016] The above solution increases the distance between the ejector and the shaft by using a lifting member, allowing the ejector to align with the outer ring of the bearing. When the telescopic structure extends, it drives the ejector to slide relative to the outer wall of the lifting member through the mating surface. The ejector then contacts and presses against the outer ring of the bearing, thus ejecting and disassembling it.

[0017] Optionally, the lifting member is provided with a magnetic element; the magnetic element is disposed adjacent to the inner wall surface of the lifting member, and the lifting member is magnetically fixed to the shaft by the magnetic element.

[0018] The above solution reduces the possibility of the lifting component shifting relative to the shaft or falling off, thus ensuring the stability of the device operation.

[0019] Optionally, the disassembly device further includes a stop structure connected to the housing, the stop structure extending to and abutting the first end of the shaft; wherein the first end of the shaft is the end of the shaft along the axis of the shaft and pointing from the top disassembly member to the part to be disassembled.

[0020] Through the above scheme, the stop structure can provide a force to the shaft in the opposite direction to the force exerted by the part to be disassembled on the shaft, so as to prevent the shaft from moving axially during the disassembly of the part to be disassembled.

[0021] Optionally, the gear position structure includes a baffle and a connecting assembly, the baffle being connected to the housing via the connecting assembly, and the baffle abutting against the first end of the shaft.

[0022] Optionally, the connecting assembly includes a screw and a nut, one end of the screw being connected to the housing, and the other end of the screw passing through the baffle and threadedly connected to the nut.

[0023] With the above solution, during use, the baffle can be moved toward the shaft by rotating the nut and abut against the first end of the shaft, thereby reducing the gap between the baffle and the shaft and improving the axial blocking effect of the baffle on the shaft. Attached Figure Description

[0024] To more clearly illustrate the technical solutions in the embodiments of this disclosure, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this disclosure. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0025] Figure 1 A cross-sectional perspective view of a disassembly apparatus in its working state according to an embodiment of the present disclosure is shown. Figure 2A partial cross-sectional schematic diagram of the disassembly apparatus in its working state according to an embodiment of the present disclosure is shown. Figure 3 for Figure 2 A partially enlarged schematic diagram; Figure 4 A perspective view of the assembly of the lifting member and the magnetic member according to an embodiment of the present disclosure is shown; Figure 5 A perspective view of a top-mounted assembly according to an embodiment of the present disclosure is shown; Figure 6 A partial three-dimensional schematic diagram of the disassembly device in its working state according to an embodiment of the present disclosure is shown.

[0026] Explanation of reference numerals in the attached figures: 10. Shaft; 20. Parts to be disassembled; 30. Housing; 100. Top ejector; 110. Mating surface; 120. Ejector section; 130. Connecting plate; 200. Telescopic structure; 210. Hollow jack; 220. Connecting rod; 300. Lifting component; 400. Magnetic components; 500, Gear mechanism; 510, Baffle; 520, Connecting assembly; 521, Screw; 522, Nut; 530, Locking rod. Detailed Implementation

[0027] Shaft movement is a common and significantly hazardous phenomenon during the long-term operation of wind power equipment. Key rotating components such as the main shaft, generator shaft, and gearbox shaft of a wind turbine are highly susceptible to irregular axial movement due to complex aerodynamic loads, mechanical transmission stresses, installation errors, and component wear. Initially, this shaft movement causes contact wear on small parts such as bearings and retaining rings. When the axial limiting function of the bearings fails, the fault further spreads and amplifies. For example, in the gearbox, shaft movement disrupts the stability of gear meshing, leading to uneven distribution of contact stress on the tooth surface, generating impact loads, accelerating gear fatigue wear and tooth surface spalling, and also damaging related components such as brake discs and brake pads, increasing equipment maintenance costs.

[0028] To address this, this disclosure attempted to install displacement sensors on the housing. These sensors would detect the position of the corresponding shaft, or the brake disc or gear mounted on the shaft. When the sensor's signal changes, it would indicate axial movement, thus controlling the equipment to stop and alerting the user for maintenance. This allows for early fault identification, reducing the spread of faults, and requiring only the replacement of small parts such as bearings and / or retaining rings, thereby reducing maintenance costs and time.

[0029] Furthermore, to facilitate the replacement of small parts such as bearings, this disclosure also provides a disassembly device, which allows for online disassembly of small parts such as bearings without the need to disassemble the shaft, thereby reducing the number of parts to be disassembled and further reducing the difficulty of disassembly and maintenance time.

[0030] To make the objectives, technical solutions, and advantages of the embodiments of this disclosure clearer, the technical solutions of the embodiments of this disclosure will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are some embodiments of this disclosure, but not all embodiments.

[0031] like Figures 1 to 6 As shown, this disclosure provides a disassembly device for disassembling a component 20 mounted on a shaft 10, which is housed in a housing 30. In other words, the disassembly device can disassemble the component 20 on the shaft 10 online without removing the shaft 10 from the housing 30, thereby reducing the number of parts to be disassembled, simplifying the disassembly and assembly process, and lowering maintenance costs. For example, the housing 30 can be the housing of a gearbox or other housing of components on which the shaft 10 is mounted. The component 20 can be at least one of a bearing, a retaining ring, or the outer ring of a bearing, or other parts mounted on the shaft 10.

[0032] Specifically, the disassembly device may include a top disassembly member 100, which has a mating surface 110. The mating surface 110 is constructed as an arc-shaped surface, and the axis of the mating surface 110 is parallel to or coincides with the axis of the shaft member 10. Thus, the top disassembly member 100 can slide along the mating surface 110 in a direction parallel to the axis of the shaft member 10. When the top disassembly member 100 contacts the part to be disassembled 20, it applies a force to the part to be disassembled 20 in a direction parallel to the axis of the shaft member 10, thereby facilitating the disassembly of the part to be disassembled 20 from the shaft member 10. Simultaneously, the disassembly device can disassemble the part to be disassembled 20 online without disassembling the shaft member 10, reducing the number of parts to be disassembled and lowering the disassembly difficulty and maintenance time.

[0033] Furthermore, the disassembly device may also include a telescopic structure 200. The first end of the telescopic structure 200 abuts against the end of the top disassembly member 100 opposite to the part to be disassembled 20, and the second end of the telescopic structure 200 abuts against the housing 30. The telescopic direction of the telescopic structure 200 is parallel to or coincides with the axis of the mating surface 110. Thus, when the telescopic structure 200 extends, it can cause the top disassembly member 100 to abut against the part to be disassembled 20, and push the part to be disassembled 20 to move axially along the shaft member 10. In this way, the extension action of the telescopic structure 200 can be used to push the top disassembly member 100 to disassemble the part to be disassembled 20 without direct manual force. This easily handles parts to be disassembled 20 that are difficult to disassemble manually, such as those with interference fits or rust and adhesion, significantly reducing disassembly difficulty and improving work efficiency. Furthermore, the telescopic structure 200 is parallel, approximately parallel, or coincident with the axis of the mating surface 110, so that the direction of the force applied by the telescopic structure 200 to the top disassembly piece 100 is parallel to the axial direction of the shaft piece 10, ensuring the consistency of the direction of the applied force, thereby further facilitating the disassembly of the piece to be disassembled 20 from the shaft piece 10.

[0034] For example, the ejector portion 120, which is configured as an arc-shaped structure, extends along a first preset arc in the circumferential direction. The first preset arc can be a minor arc or a semicircle, so that the ejector portion 120 can be installed without disassembling it, thereby facilitating the installation operation of the ejector portion 120.

[0035] It should be noted that the telescopic structure 200 may always be connected to the top disassembly member 100 and / or the housing 30, or the telescopic structure 200 may only abut against the top disassembly member 100 and / or the housing 30 when the telescopic structure 200 is extended.

[0036] In some embodiments, the top-removing member 100 may include only an ejector portion 120 configured as an arcuate structure, the ejector portion 120 being used to abut the member 20 to be removed, and the inner wall surface of the ejector portion 120 forming a mating surface 110.

[0037] In some other embodiments, such as Figure 1 and Figure 5 As shown, in addition to the aforementioned ejector portion 120, the top disassembly member 100 may also include a connecting plate 130. The connecting plate 130 extends radially outward from the outer wall surface of the ejector portion 120, and the first end of the telescopic structure 200 abuts against the connecting plate 130. In this way, on the one hand, the connecting plate 130 can increase the contact area between the telescopic structure 200 and the top disassembly member 100, facilitating force application. On the other hand, the connecting plate 130 can increase the distance between the telescopic structure 200 and the circumferential surface of the shaft member 10, avoiding interference between the telescopic structure 200 and the shaft member 10, and facilitating the installation of the telescopic structure 200.

[0038] For example, the above-mentioned telescopic structure 200 may have at least one, for instance, it may have only one. Alternatively, it may have two telescopic structures 200, arranged adjacent to opposite ends of the connecting plate 130 along the circumferential direction, thereby ensuring uniform force distribution on the top disassembly member 100, preventing the top disassembly member 100 from deflecting or having a tendency to deflect under single-end force, and improving disassembly stability.

[0039] Regarding the specific structure of the telescopic structure 200, this disclosure provides three feasible embodiments for reference.

[0040] In the first embodiment, the telescopic structure 200 can achieve telescopic movement by electric drive. For example, the telescopic structure 200 can be an electric cylinder.

[0041] In the second embodiment, the telescopic structure 200 can achieve telescopic movement pneumatically, for example, the telescopic structure 200 can be a cylinder.

[0042] In embodiment three, the telescopic structure 200 can be telescopically driven by hydraulic pressure. For example, the telescopic structure 200 can be a hydraulic cylinder or a jack.

[0043] For example, such as Figure 1 and Figure 6 As shown, the telescopic structure 200 includes a hollow jack 210. One end of the hollow jack 210 is connected to the connecting plate 130, and the other end of the hollow jack 210 is connected to the housing 30, so that when the hollow jack 210 extends, it can drive the top-removing component 100 to slide. One end of the hollow jack 210 can be either a telescopic end or a fixed end, and the other end of the hollow jack 210 can be either a telescopic end or a fixed end.

[0044] Furthermore, the axes of the hollow jack 210 and the shaft 10 can be parallel or approximately parallel, so that the direction of the force applied by the telescopic structure 200 to the dismantling part 100 is parallel to the axial direction of the shaft 10, ensuring the consistency of the direction of the applied force, thereby further facilitating the dismantling of the part 20 to be dismantled from the shaft 10.

[0045] Considering that the axial length of the hollow jack 210 is sometimes insufficient to meet the distance between the top dismantling component 100 and the corresponding connection position on the housing 30, in some embodiments, the telescopic structure 200 may also include a connecting rod 220 so that the other end of the hollow jack 210 can be connected to the housing 30 through the connecting rod 220 to compensate for the deficiency of insufficient length.

[0046] For example, the connecting rod 220 may also have a notch to avoid the structure on the housing and prevent installation interference.

[0047] When the aforementioned part to be disassembled 20 can be the entire bearing or retaining ring, the mating surface 110 can directly mate with the circumferential surface of the shaft 10. When the telescopic structure 200 extends, the telescopic structure 200 drives the top disassembly part 100 to slide relative to the circumferential surface of the shaft 10 through the mating surface 110, thereby pushing the entire bearing or retaining ring off the shaft 10 for disassembly.

[0048] When the aforementioned component 20 to be disassembled involves only removing the outer ring of the bearing in contact with it, such as Figure 3 and Figure 4 As shown, the disassembly device may further include a lifting member 300, which is constructed as an arc shape. The inner wall surface of the lifting member 300 mates with the circumferential surface of the shaft 10, and the outer wall surface of the lifting member 300 mates with the mating surface 110. This increases the distance between the ejector portion 120 and the shaft 10, allowing the ejector portion 120 to align with the outer ring of the bearing. Thus, when the telescopic structure 200 extends, it drives the disassembly member 100 to slide relative to the outer wall surface of the lifting member 300 through the mating surface 110. The ejector portion 120 contacts and presses against the outer ring of the bearing, thereby ejecting and disassembling the outer ring of the bearing.

[0049] For example, the lifting member 300, constructed as an arc shape, extends circumferentially along a second preset arc. The second preset arc can be a minor arc or a semicircle, allowing for installation without disassembling the lifting member 300, thus facilitating its installation. The outer wall surface roughness of the lifting member 300 is lower than that of its inner wall surface, or the outer wall surface of the lifting member 300 is provided with a lubricating medium such as lubricating grease, thereby facilitating the sliding of the top-removing member 100 relative to the outer wall surface of the lifting member 300 via the mating surface 110.

[0050] Furthermore, a magnetic component 400 may be provided on the lifting component 300. The magnetic component 400 is disposed adjacent to the inner wall surface of the lifting component 300. The lifting component 300 is magnetically fixed to the shaft component 10 by the magnetic component 400, thereby reducing the possibility of the lifting component 300 moving relative to the shaft component 10 and falling off, and ensuring the stability of the device operation.

[0051] For example, the magnetic component 400 can be embedded inside the lifting component 300. The inner wall surface of the lifting component 300 may also be provided with a receiving groove, in which the magnetic component 400 is installed.

[0052] In some embodiments, the lifting member 300 may be provided with a handle for easy gripping. And / or, the top disassembly member 100 may be provided with a handle for easy gripping, thereby facilitating disassembly and assembly operations.

[0053] Considering that the part to be disassembled 20 is usually interference-fitted with the shaft 10, disassembling the part to be disassembled 20 may cause the shaft 10 to move axially, thereby further aggravating the axial movement of the shaft 10. Therefore, in some embodiments, such as Figure 1and Figure 6 As shown, the disassembly device may further include a stop structure 500, which is connected to the housing 30. The stop structure 500 extends to the first end of the shaft 10 and abuts against the first end of the shaft 10. The first end of the shaft 10 is the end of the shaft 10 along its axis and pointing from the top of the disassembly piece 100 towards the end of the piece to be disassembled 20. In other words, in... Figure 1 The left end of the shaft 10 is shown in the view shown. In this way, the stop structure 500 can provide a force to the shaft 10 in the opposite direction to the force exerted on the shaft 10 by the part to be disassembled 20, so as to prevent the shaft 10 from moving axially during the disassembly of the part to be disassembled 20.

[0054] For example, the stop structure 500 may include a baffle 510 and a connecting assembly 520. The baffle 510 is connected to the housing 30 via the connecting assembly 520, and the baffle 510 abuts against the first end of the shaft 10. The plane containing the baffle 510 is perpendicular or substantially perpendicular to the axis of the shaft 10. There may be two connecting assemblies 520, each connected to one end of the baffle 510. The middle portion of the baffle 510 abuts against the first end of the shaft 10, thereby ensuring uniform force distribution on the baffle 510, reducing the possibility of the baffle 510 overturning or breaking under stress, and improving the stability of the baffle 510's obstruction of the shaft 10.

[0055] In some embodiments, the connecting assembly 520 may include a screw 521 and a nut 522. One end of the screw 521 is connected to the housing 30, and the other end of the screw 521 passes through the baffle 510 and is threadedly connected to the nut 522. Thus, in use, by rotating the nut 522, the baffle 510 can be pushed towards the shaft 10 and abut against the first end of the shaft 10, reducing the gap between the baffle 510 and the shaft 10, thereby improving the axial blocking effect of the baffle 510 on the shaft 10.

[0056] Considering that during use, the weight of both the baffle 510 and the connecting assembly 520 is supported by the connection between the connecting assembly 520 and the housing 30, forming a cantilever structure, this cantilever structure easily increases the possibility of deformation of the connecting assembly 520 under stress. Therefore, in some embodiments, the stop structure 500 may further include a locking rod 530, part of which passes through the baffle 510 and is threadedly connected to the first end of the shaft 10. The locking rod 530 and the shaft 10 clamp the baffle 510. Thus, the weight of the entire structure formed by the baffle 510 and the connecting assembly 520 acts not only at the connection between the connecting assembly 520 and the housing 30, but also at the connection between the baffle 510 and the first end of the shaft 10. This allows both ends of the structure formed by the baffle 510 and the connecting assembly 520 to bear the weight of the entire structure, reducing the possibility of deformation of the connecting assembly 520 under stress.

[0057] The terms "upper" and "lower" used in this disclosure are used to describe the relative positional relationship of the various structures in the accompanying drawings. They are only for the purpose of clarity of description and are not intended to limit the scope of implementation of this disclosure. Changes or adjustments to the relative relationships without substantially altering the technical content should also be considered as part of the scope of implementation of this disclosure.

[0058] It should be noted that, in this disclosure, 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 indicates 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 indicates that the first feature is at a lower horizontal level than the second feature.

[0059] Furthermore, in this disclosure, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this disclosure according to the specific circumstances.

[0060] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this disclosure. 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.

[0061] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this disclosure, and are not intended to limit them. Although this disclosure 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 or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this disclosure.

Claims

1. A dismounting device, characterized in that The disassembly device is used to disassemble the part (20) to be disassembled, which is mounted on the shaft (10) and is located on the housing (30). The disassembly device includes: The top disassembly member (100) has a mating surface (110), which is constructed as an arc-shaped surface, and the axis of the mating surface (110) is parallel to or coincides with the axis of the shaft member (10). A telescopic structure (200) is provided, wherein the first end of the telescopic structure (200) abuts against the end of the top disassembly member (100) away from the part to be disassembled (20), and the second end of the telescopic structure (200) abuts against the housing (30). The telescopic direction of the telescopic structure (200) is parallel to or coincides with the axis of the mating surface (110), so that when the telescopic structure (200) extends, the telescopic structure (200) drives the top disassembly member (100) to abut against the part to be disassembled (20), and pushes the part to be disassembled (20) to move along the axial direction of the shaft member (10).

2. The disassembly device according to claim 1, characterized in that The top-dismantling component (100) includes a top-out portion (120) and a connecting plate (130), wherein, The ejector portion (120) is constructed as an arc-shaped structure, the ejector portion (120) is used to abut against the part to be disassembled (20), and the inner wall surface of the ejector portion (120) forms the mating surface (110); The connecting plate (130) extends radially outward from the outer wall surface of the top portion (120), and the first end of the telescopic structure (200) abuts against the connecting plate (130).

3. The disassembly device according to claim 2, characterized in that The telescopic structure (200) has two parts, and the two telescopic structures (200) are respectively arranged adjacent to the opposite ends of the connecting plate (130) in the circumferential direction.

4. The disassembly device according to claim 2, characterized in that The telescopic structure (200) includes a hollow jack (210) and a connecting rod (220), wherein, One end of the hollow jack (210) is connected to the connecting plate (130), and the other end of the hollow jack (210) is connected to the box body (30) through the connecting rod (220).

5. The disassembly device according to claim 1, characterized in that The mating surface (110) mates with the circumferential surface of the shaft (10).

6. The disassembly device according to claim 1, characterized in that The dismantling device also includes a lifting component (300); The lifting member (300) is constructed as an arc-shaped structure, the inner wall surface of the lifting member (300) mates with the circumferential surface of the shaft member (10), and the outer wall surface of the lifting member (300) mates with the mating surface (110).

7. The disassembly device according to claim 6, characterized in that The lifting component (300) is provided with a magnetic component (400); The magnetic component (400) is disposed adjacent to the inner wall surface of the lifting component (300), and the lifting component (300) is magnetically fixed to the shaft component (10) by the magnetic component (400).

8. The disassembly device according to any one of claims 1 to 7, characterized in that The disassembly device also includes a stop structure (500), which is connected to the housing (30) and extends to the first end of the shaft (10) and abuts against the first end of the shaft (10). The first end of the shaft (10) is the end of the shaft (10) along the axis of the shaft (10) and pointing from the top disassembly member (100) to the end of the member to be disassembled (20).

9. The disassembly device according to claim 8, characterized in that The gear shift structure (500) includes a baffle (510) and a connecting assembly (520). The baffle (510) is connected to the housing (30) through the connecting assembly (520), and the baffle (510) abuts against the first end of the shaft (10).

10. The disassembly device according to claim 9, characterized in that The connecting assembly (520) includes a screw (521) and a nut (522). One end of the screw (521) is connected to the housing (30), and the other end of the screw (521) passes through the baffle (510) and is threadedly connected to the nut (522).

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