Disassembling and assembling tool and fan assembly

Abstract

The utility model relates to a kind of dismounting tool and fan assembly, dismounting tool is used to insert the shaft of first workpiece into the shaft hole of second workpiece or pull out from the shaft hole, dismounting tool includes: fixed assembly, for being detachably fixed with second workpiece;Driving assembly, including slider and driving part, slider is set to fixed assembly, driving part can drive slider to slide along preset axis relative to fixed assembly, one end of slider along preset axis can pass through shaft hole and correspond with the end surface of shaft;Connecting piece, detachably set to slider, and for detachably fixed slider with shaft. Dismounting tool can be used to accurately install first workpiece and second workpiece, also can be used to disassemble first workpiece and second workpiece, dismounting process is simple and convenient, can realize user alone operation, and not easy to cause damage to first workpiece and second workpiece;Meanwhile, dismounting process is not limited by the condition of production environment, and cost is lower.

Description

Technical Field

[0001] This utility model relates to the field of mechanical tooling technology, and in particular to a disassembly and assembly tooling and a fan assembly. Background Technology

[0002] In equipment such as aging machines and aging test chambers, centrifugal fans are typically used as the drive source to ensure air circulation within the testing environment. Centrifugal fans usually consist of a fan body and an impeller, with the fan body's shaft and the impeller's shaft hole forming an interference fit.

[0003] When installing and removing impellers, hammering, cold installation, or hot installation methods are generally used to insert the shaft into or pull out of the impeller's shaft hole. However, hammering can easily damage the centrifugal fan, which can seriously affect its tooling performance and makes it difficult to ensure that the impeller is installed correctly. The disassembly process is also quite cumbersome. Cold installation or hot installation methods require specialized equipment and are difficult to implement without professional expertise, resulting in higher costs. Utility Model Content

[0004] Therefore, it is necessary to provide a disassembly and assembly tooling and a fan assembly to address the above problems, so as to facilitate the disassembly and assembly of the impeller of the fan assembly.

[0005] This utility model provides a disassembly and assembly fixture, comprising: a fixture for inserting or pulling out a rotating shaft of a first workpiece into a shaft hole of a second workpiece; the fixture comprising: a fixing component for detachably fixing to the second workpiece; a driving component including a sliding member and a driving member, the sliding member being disposed on the fixing component, the driving member being capable of driving the sliding member to slide relative to the fixing component along a preset axis, one end of the sliding member along the preset axis being capable of passing through the shaft hole and corresponding to the end face of the rotating shaft; and a connecting member detachably disposed on the sliding member and used for detachably fixing the sliding member to the rotating shaft.

[0006] In the above-mentioned assembly and disassembly fixture, during installation, the fixing component is first fixedly connected to the second workpiece, and the sliding component is passed through the shaft hole and aligned with the end face of the rotating shaft. Then, the sliding component is fixedly connected to the rotating shaft via the connecting component. Finally, the sliding component is driven by the driving component to slide relative to the fixing component along a preset axis toward the side away from the rotating shaft. Since the sliding component is fixedly connected to the rotating shaft, and the fixing component is fixedly connected to the second workpiece, the fixing component and the second workpiece can slide relative to the sliding component and the rotating shaft along a preset axis toward the side closer to the rotating shaft, allowing the rotating shaft to be inserted into the shaft hole. During disassembly, the fixing component is first fixedly connected to the second workpiece, and the sliding component is passed through the shaft hole and aligned with the end face of the rotating shaft. Then, the sliding component is fixedly connected to the rotating shaft via the connecting component, or the sliding component... The end abuts against the end face of the rotating shaft, and finally, the sliding member is driven by the driving component to slide relative to the fixed component along the preset axis toward the side closer to the rotating shaft. Since the end face of the sliding member corresponds to the end face of the rotating shaft, and the fixed component is fixedly connected to the second workpiece, the fixed component and the second workpiece can slide relative to the sliding member and the rotating shaft along the preset axis toward the side away from the rotating shaft, so that the rotating shaft can be pulled out from the shaft hole. In this way, the disassembly and assembly fixture can be used to accurately install the first and second workpieces, and can also be used to disassemble the first and second workpieces. The disassembly and assembly process is simple and convenient, and can be completed by the user alone. It does not require hammering and is not likely to damage the first and second workpieces. At the same time, the disassembly and assembly process is not limited by the production environment conditions and has low cost.

[0007] In one embodiment, the fixing assembly includes a first fixing member for detachably fixing to the second workpiece, the first fixing member having a sliding through hole extending along the preset axis, and the sliding member being slidably disposed in the sliding through hole.

[0008] With this configuration, the sliding through hole can guide the axial movement of the sliding component, ensuring that the sliding component always moves in a straight line along the preset axis. Furthermore, when the disassembly and assembly tooling, the first workpiece, and the second workpiece are assembled, the shaft hole of the second workpiece will adaptively align with the rotating shaft, thus facilitating the alignment of the second workpiece with the first workpiece.

[0009] In one embodiment, the fixing component further includes a second fixing member and a support member, the second fixing member being spaced apart from the first fixing member on the side away from the second workpiece, the two ends of the support member being connected to the first fixing member and the second fixing member respectively, and the driving member being disposed on the second fixing member.

[0010] With this configuration, the support member is used to connect and support the first and second fixing members, improving the overall stability and reliability of the fixing assembly; the second fixing member, as the mounting platform for the drive member, can constrain the relative positions of the drive member, the sliding member, and the fixing assembly, improving the stability of the drive member driving the sliding member.

[0011] In one embodiment, the drive member is rotatable relative to the second fixing member about the preset axis, the slider is provided with a first threaded hole extending along the preset axis, and the drive member is provided with a first threaded portion that can engage with the first threaded hole by thread.

[0012] This configuration converts the rotational motion of the drive component into precise axial sliding of the slider through the threaded pair, which improves the sliding control accuracy of the slider and constrains the slider to always slide along the preset axis.

[0013] In one embodiment, the sliding member includes a first sliding portion and a second sliding portion. The first sliding portion is provided with a first threaded hole, and the second sliding portion is provided with a clearance hole and a first mounting hole that communicate with each other. One end of the second sliding portion with the clearance hole is connected to the first sliding portion, and the connecting member can pass through the clearance hole and the first mounting hole in sequence and be detachably fixed to the rotating shaft.

[0014] This design allows the clearance hole to facilitate the installation of connectors, while also enabling the first threaded part to extend into the second sliding part, thereby reducing the overall axial dimension of the assembly and disassembly tooling.

[0015] In one embodiment, the two ends of the support member are detachably fixed to the first fixing member and the second fixing member, respectively; and / or, there are multiple support members, and each support member is arranged at circumferential intervals along the first fixing member.

[0016] This design allows users to easily connect or disconnect the assembly / disassembly fixture from the first and second workpieces, improving operational efficiency. Furthermore, it allows for the replacement of the first, second, and supporting components with different sizes and structures as needed. Multiple supporting components enhance the stability and reliability of the connection between the first and second fixing components and evenly distribute the forces generated during the assembly / disassembly of the first and second workpieces.

[0017] In one embodiment, the first fastener is further provided with at least two second mounting holes arranged circumferentially spaced along the sliding through hole, so that the fastener can pass through the second mounting holes and be detachably fixed to the second workpiece.

[0018] This configuration ensures the stability and reliability of the connection between the first fixing member and the second workpiece, avoiding the risk of tilting of the first fixing member and the second workpiece due to single-point fixing; at the same time, it ensures that the sliding through hole and the shaft hole can be automatically coaxially aligned when the first fixing member and the second workpiece are fixed.

[0019] In one embodiment, the first fixing member has a mounting groove on one side away from the second workpiece, and the sliding through hole and the second mounting hole are both located on the bottom wall of the mounting groove.

[0020] With this configuration, the mounting groove is used to accommodate the end of the fastener, preventing the fastener from protruding from the first fixing member and hindering the sliding of the slider.

[0021] In one embodiment, the second mounting hole extends radially outward from the sidewall of the sliding through hole.

[0022] This configuration ensures that the second mounting hole can be aligned with the fourth threaded hole, improving compatibility.

[0023] This utility model also provides a fan assembly, including a fan body, an impeller, and the disassembly and assembly fixture described above. The disassembly and assembly fixture is used to insert the rotating shaft of the fan body into the shaft hole of the impeller or pull it out from the shaft hole. Attached Figure Description

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

[0025] Figure 1 This is a three-dimensional structural diagram of the disassembly and assembly tooling according to one embodiment of the present utility model;

[0026] Figure 2 This is a schematic diagram of the disassembly and assembly tooling and the assembly of the fan assembly according to one embodiment of the present invention.

[0027] Figure 3 Provided by this utility model Figure 2 A partial sectional view of the impeller being installed in the center;

[0028] Figure 4 Provided by this utility model Figure 2 A partial cross-sectional view during impeller disassembly;

[0029] Figure 5 Provided by this utility model Figure 1 A three-dimensional structural diagram of the fixed component.

[0030] Reference numerals: 100, disassembly / assembly fixture; 10, fixing component; 11, first fixing member; 111, sliding through hole; 112, second mounting hole; 113, mounting groove; 114, second threaded hole; 12, second fixing member; 121, third mounting hole; 13, support member; 131, second threaded part; 14, nut; 20, drive component; 21, sliding member; 211, first threaded hole; 212, first sliding part; 213, second sliding part; 214, clearance hole; 215, first mounting hole; 22, drive member; 221, first threaded part; 30, connecting member; 40, fastener; 200, fan body; 201, rotating shaft; 202, third threaded hole; 300, impeller; 301, shaft hole; 302, fourth threaded hole. Detailed Implementation

[0031] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0032] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on the other component or there may be an intermediate component. When a component is considered to be "connected to" another component, it can be directly connected to the other component or there may be an intermediate component present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this application's specification are for illustrative purposes only and do not represent the only possible implementation.

[0033] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0034] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature and the second feature are in indirect contact through an intermediate medium. Furthermore, "above," "over," and "on top" 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.

[0035] Unless otherwise defined, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in this application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. The term "and / or" as used in this application includes any and all combinations of one or more of the associated listed items.

[0036] In equipment such as aging machines and aging test chambers, centrifugal fans are typically used as the drive source to ensure air circulation within the testing environment. Centrifugal fans generally consist of a fan body and an impeller, with the fan body's shaft and the impeller's shaft hole forming an interference fit. When installing and removing the impeller, hammering, cold fitting, or hot fitting methods are generally used to insert or pull the shaft into the impeller's shaft hole. However, hammering can easily damage the centrifugal fan, severely affecting its tooling performance, and it's difficult to ensure the impeller is installed correctly; the disassembly process is also quite cumbersome. Cold fitting or hot fitting methods require specialized equipment, are difficult to implement without professional expertise, and are costly.

[0037] To solve the above problems, such as Figures 1 to 5 As shown, this utility model first provides a disassembly and assembly tool to facilitate the disassembly and assembly of the impeller of the fan assembly.

[0038] like Figures 1 to 3 As shown, the assembly / disassembly fixture 100 is used to insert the rotating shaft 201 of the first workpiece into or pull out the shaft hole 301 of the second workpiece. In the illustrated embodiment, the first workpiece is the fan body 200, and the second workpiece is the impeller 300. Of course, in other embodiments, the assembly / disassembly fixture 100 can also be used to assemble and disassemble other first workpieces with rotating shafts 201 and second workpieces with shaft holes 301.

[0039] like Figures 3 to 4As shown, specifically, the disassembly and assembly fixture 100 includes a fixing component 10, a driving component 20, and a connecting member 30, wherein: the fixing component 10 is used to detachably fix the second workpiece; the driving component 20 includes a sliding member 21 and a driving member 22, the sliding member 21 is disposed on the fixing component 10, and the driving member 22 can drive the sliding member 21 to slide relative to the fixing component 10 along a preset axis a, one end of the sliding member 21 along the preset axis a can pass through the shaft hole 301 and correspond to the end face of the rotating shaft 201; the connecting member 30 is detachably disposed on the sliding member 21 and is used to detachably fix the sliding member 21 to the rotating shaft 201.

[0040] It should be noted that the fact that one end of the slider 21 along the preset axis a can pass through the shaft hole 301 and correspond to the end face of the rotating shaft 201 means that the end of the slider 21 is centered or aligned with the end face of the rotating shaft 201, so that the connecting member 30 can accurately fix the slider 21 to the rotating shaft 201. Furthermore, the end of the slider 21 can also abut against the end face of the rotating shaft 201 to ensure that the slider 21 and the rotating shaft 201 are reliably fixed.

[0041] In the disassembly and assembly fixture 100 provided in this embodiment of the utility model, before disassembly and assembly, the first workpiece can be stably placed on an external plane such as the ground or a table to ensure that the first workpiece will not shift; such as Figure 3 As shown, during installation, the fixing component 10 is first fixedly connected to the second workpiece, and the sliding member 21 is passed through the shaft hole 301 and aligns with the end face of the rotating shaft 201. Then, the sliding member 21 is fixedly connected to the rotating shaft 201 via the connecting member 30. Finally, the driving member 22 drives the sliding member 21 to slide relative to the fixing component 10 along a preset axis a toward the side away from the rotating shaft 201. Since the sliding member 21 is fixedly connected to the rotating shaft 201, and the fixing component 10 is fixedly connected to the second workpiece, the fixing component 10 and the second workpiece can slide relative to the sliding member 21 and the rotating shaft 201 along the preset axis a toward the side closer to the rotating shaft 201, so that the rotating shaft 201 is inserted into the shaft hole 301; Figure 4 As shown, during disassembly, the fixing component 10 is first fixedly connected to the second workpiece, and the sliding member 21 is passed through the shaft hole 301 and corresponds to the end face of the rotating shaft 201. Then, the sliding member 21 is fixedly connected to the rotating shaft 201 through the connecting member 30, or the end of the sliding member 21 is abutted against the end face of the rotating shaft 201. Finally, the driving member 22 drives the sliding member 21 to slide relative to the fixing component 10 along the preset axis a toward the side closer to the rotating shaft 201. Since the sliding member 21 is fixedly connected to or abuts against the rotating shaft 201, and the fixing component 10 is fixedly connected to the second workpiece, the fixing component 10 and the second workpiece can slide relative to the sliding member 21 and the rotating shaft 201 along the preset axis a toward the side away from the rotating shaft 201, so that the rotating shaft 201 is pulled out from the shaft hole 301.

[0042] Thus, the disassembly and assembly fixture 100 can be used to accurately install the first and second workpieces, as well as to disassemble them. The disassembly and assembly process is simple and convenient, allowing users to complete the operation independently without hammering, thus minimizing the risk of damage to the first and second workpieces. Furthermore, the disassembly and assembly process is not limited by production environment conditions, resulting in lower costs.

[0043] like Figures 3 to 4 As shown in the illustrated embodiment, the rotating shaft 201 is provided with a third threaded hole 202, and the connecting member 30 is a screw or bolt that can engage with the third threaded hole 202 via threads. This ensures a reliable connection between the connecting member 30 and the rotating shaft 201, while also facilitating assembly and disassembly. Of course, in other embodiments, the connecting member 30 and the rotating shaft 201 can also be detachably fixed by snap-fit, plug-in, or other methods, as long as the stability and reliability of the connection between the connecting member 30 and the rotating shaft 201 can be ensured. This embodiment of the present invention does not impose specific limitations here.

[0044] like Figures 3 to 5 As shown, the fixing assembly 10 includes a first fixing member 11 for detachably fixing to the second workpiece. The first fixing member 11 has a sliding through hole 111 extending along a preset axis a, and a sliding member 21 is slidably disposed in the sliding through hole 111. The sliding through hole 111 can guide the axial movement of the sliding member 21, ensuring that the sliding member 21 always moves linearly along the preset axis a, avoiding eccentric force or axis deviation, and eliminating the risk of damage to the first and second workpieces due to uneven force. Furthermore, when the first fixing member 11 is fixed to the second workpiece, the sliding through hole 111 is coaxial with the shaft hole 301; when the sliding member 21 passes through the sliding through hole 111 and the shaft hole 301, the sliding member 21 is coaxial with the sliding through hole 111 and the shaft hole 301; when the sliding member 21 is fixed to the rotating shaft 201 through the connecting member 30, the sliding member 21 is coaxial with the rotating shaft 201. Therefore, when the disassembly and assembly fixture 100, the first workpiece, and the second workpiece are assembled, the shaft hole 301 of the second workpiece will be adaptively coaxially aligned with the rotating shaft 201, which will facilitate the alignment of the second workpiece with the first workpiece.

[0045] like Figure 1 and Figure 3As shown, in one embodiment, the fixing assembly 10 further includes a second fixing member 12 and a support member 13. The second fixing member 12 is spaced apart from the side of the first fixing member 11 facing away from the second workpiece. The two ends of the support member 13 are respectively connected to the first fixing member 11 and the second fixing member 12. The driving member 22 is disposed on the second fixing member 12. The support member 13 is used to connect and support the first fixing member 11 and the second fixing member 12, improving the overall stability and reliability of the fixing assembly 10 and facilitating user operation. The second fixing member 12 serves as the mounting platform for the driving member 22, constraining the relative positions of the driving member 22, the sliding member 21, and the fixing assembly 10, preventing the sliding axis of the sliding member 21 from shifting due to the shaking of the driving member 22 relative to the fixing assembly 10, thereby improving the stability of the driving member 22 driving the sliding member 21 to move.

[0046] Of course, in other embodiments, when assembling or disassembling the first workpiece and the second workpiece, the user may hold the drive component 22 by hand or use an external structure as a mounting platform for the drive component 22, as long as it is ensured that the drive component 22 can drive the sliding component 21 to slide accurately relative to the fixed component 10 along the preset axis a. This embodiment of the present invention does not impose specific limitations here.

[0047] like Figure 1 and Figure 3 As shown, in one embodiment, the two ends of the support member 13 are detachably fixed to the first fixing member 11 and the second fixing member 12, respectively. This facilitates the user in connecting or disassembling the assembly / disassembly fixture 100 to the first and second workpieces, improving operational efficiency. Furthermore, it allows for the replacement of the first fixing member 11, the second fixing member 12, and the support member 13 with different sizes and structures as needed, adapting to different sizes and structures of the first and second workpieces and improving compatibility.

[0048] Furthermore, there are multiple support members 13, which are arranged at circumferential intervals along the first fixing member 11. Multiple support members 13 can improve the stability and reliability of the connection between the first fixing member 11 and the second fixing member 12, and can evenly distribute the forces generated during the assembly and disassembly of the first and second workpieces, preventing local stress concentration that could lead to deformation of the first workpiece, the second workpiece, or the assembly / disassembly fixture 100, thus extending its service life. The number of support members 13 can be four as shown in the figure, or it can be two, three, five, six, or more. Of course, while ensuring the overall reliability of the fixing assembly 10, the number of support members 13 can also be one, for example, by setting the support member 13 as a ring structure.

[0049] In the illustrated embodiment, the first fixing member 11 is provided with a plurality of second threaded holes 114 corresponding one-to-one with the support member 13, and the second fixing member 12 is provided with a plurality of third mounting holes 121 corresponding one-to-one with the support member 13. Both ends of the support member 13 are provided with second threaded portions 131, and the fixing assembly 10 also includes a nut 14. The second threaded portion 131 at one end of the support member 13 is fixed to the second threaded hole 114 by threaded engagement, and the second threaded portion 131 at the other end passes through the third mounting hole 121 and is fixed to the nut 14 by threaded engagement.

[0050] Of course, in other embodiments, the support member 13 can also be connected to the first fixing member 11 and the second fixing member 12 by means of screws, snap-fit, plug-in, etc. The present invention embodiment does not make specific limitations here; or, without affecting the connection or disassembly of the disassembly and assembly tooling 100 with the first workpiece and the second workpiece, the first fixing member 11, the support member 13 and the second fixing member 12 can also be fixed in a non-removable manner.

[0051] like Figures 3 to 4 As shown, in one embodiment, the driving member 22 is rotatable relative to the second fixing member 12 about a preset axis a. The sliding member 21 is provided with a first threaded hole 211 extending along the preset axis a, and the driving member 22 is provided with a first threaded portion 221 that can be threadedly engaged with the first threaded hole 211. During installation, the driving member 22 is controlled to rotate about the preset axis a in a first direction, and the first threaded portion 221 engages with the first threaded hole 211 through threaded engagement, causing the sliding member 21 to slide relative to the fixing member 10 along the preset axis a toward the side away from the rotating shaft 201. During disassembly, the driving member 22 is controlled to rotate about the preset axis a in the opposite direction of the first direction, and the first threaded portion 221 engages with the first threaded hole 211 through threaded engagement, causing the sliding member 21 to slide relative to the fixing member 10 along the preset axis a toward the side closer to the rotating shaft 201. The first direction can be either the +b direction shown in the figure or the -b direction shown in the figure. In this way, the rotational motion of the drive component 22 is converted into the precise axial sliding of the sliding component 21 through the threaded pair, which can improve the sliding control accuracy of the sliding component 21 and constrain the sliding component 21 to always slide along the preset axis a, ensuring that the first workpiece and the second workpiece are installed in place, while reducing the damage caused to the first workpiece and the second workpiece by the disassembly and assembly fixture 100.

[0052] Furthermore, the drive component 22 is mounted on the second fixed component 12 via bearings to ensure that the drive component 22 can rotate smoothly relative to the second fixed component 12. The user can control the rotation of the drive component 22 manually or with the help of external tools such as screwdrivers, or the drive component 22 can be driven to rotate by a rotary drive element such as a motor.

[0053] like Figures 3 to 4As shown, the sliding member 21 includes a first sliding portion 212 and a second sliding portion 213. The first sliding portion 212 has a first threaded hole 211, and the second sliding portion 213 has an interconnected clearance hole 214 and a first mounting hole 215. One end of the second sliding portion 213 with the clearance hole 214 is connected to the first sliding portion 212. The connecting member 30 can pass through the clearance hole 214 and the first mounting hole 215 in sequence and be detachably fixed to the rotating shaft 201. The first sliding portion 212 is used to engage with the driving member 22 via a thread, and the second sliding portion 213 is used to connect to the rotating shaft 201 via the connecting member 30 or to directly push against the rotating shaft 201. The clearance hole 214 facilitates the installation of the connecting member 30 and also allows the first threaded portion 221 to extend into the second sliding portion 213, thereby reducing the overall axial dimension of the disassembly and assembly fixture 100.

[0054] Furthermore, the first sliding part 212 can be detachably connected to the second sliding part 213. This allows the first sliding part 212 and the second sliding part 213 to be separated, and the connector 30 can be installed or removed via the clearance hole 214, or the connection and separation of the connector 30 and the rotating shaft 201 can be controlled, facilitating user operation. The first sliding part 212 and the second sliding part 213 can be connected by screws, snap-fits, or plug-ins to ensure synchronous sliding. The outer diameter of at least one end of the second sliding part 213 inserted into the shaft hole 301 is slightly smaller than the inner diameter of the shaft hole 301 to ensure smooth sliding within the shaft hole 301.

[0055] Of course, in other embodiments, the driving component 22 can also be a hydraulic cylinder, pneumatic cylinder, electric push rod, linear guide rail or other components that can directly drive the sliding component 21 to slide along the preset axis a. This embodiment of the present invention does not impose specific limitations here.

[0056] like Figure 5 As shown, in one embodiment, the first fixing member 11 is further provided with at least two second mounting holes 112 arranged circumferentially along the sliding through hole 111, so that the fastener 40 can pass through the second mounting holes 112 and be detachably fixed to the second workpiece. Specifically, the second workpiece is provided with at least two fourth threaded holes 302 corresponding to the second mounting holes 112, and the fastener 40 is a screw or bolt that can be threaded into the fourth threaded holes 302. The number of second mounting holes 112 can be two, three, four or more, and the number of second mounting holes 112 is greater than or equal to the number of fourth threaded holes 302. In this way, the stability and reliability of the connection between the first fixing member 11 and the second workpiece can be ensured, avoiding the risk of tilting of the first fixing member 11 and the second workpiece due to single-point fixing; at the same time, it further ensures that when the first fixing member 11 and the second workpiece are fixed, the sliding through hole 111 and the shaft hole 301 can be automatically coaxially aligned.

[0057] Of course, in other embodiments, while ensuring the stability and reliability of the connection between the first fixing member 11 and the second workpiece, the number of second mounting holes 112 can also be one; or, the first fixing member 11 and the second workpiece can also be fixedly connected by other methods such as snap-fit ​​or plug-in. This utility model embodiment does not impose specific limitations here.

[0058] like Figure 3 and Figure 5 As shown, the first fixing member 11 has a mounting groove 113 on the side opposite to the second workpiece. The sliding through hole 111 and the second mounting hole 112 are both located on the bottom wall of the mounting groove 113. The mounting groove 113 is used to accommodate the end of the fastener 40, preventing the fastener 40 from protruding from the first fixing member 11 and hindering the sliding of the sliding member 21, thereby reducing the overall axial dimension of the disassembly and assembly fixture 100.

[0059] like Figure 5 As shown, the second mounting hole 112 extends radially outward from the sidewall of the sliding through hole 111. This allows the first fixing member 11 to adapt to rotating shafts 201 of different diameters and also to adapt to the machining tolerances of the fourth threaded hole 302, ensuring that the second mounting hole 112 can be aligned with the fourth threaded hole 302 and improving compatibility.

[0060] like Figure 2 As shown in the figure, this utility model embodiment also provides a fan assembly, including a fan body 200, an impeller 300, and the disassembly and assembly fixture 100 as described above. The disassembly and assembly fixture 100 is used to insert the rotating shaft 201 of the fan body 200 into the shaft hole 301 of the impeller 300 or to pull it out from the shaft hole 301. The specific implementation method and disassembly and assembly relationship are as described above, and will not be repeated here.

[0061] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0062] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the scope of protection of this application. Therefore, the patent protection scope of this application should be determined by the appended claims.

Claims

1. A dismounting tool for inserting or pulling out a rotating shaft (201) of a first workpiece into or from a shaft hole (301) of a second workpiece, characterized in that, The disassembly / assembly fixtures include: A fixing component (10) is used to detachably fix the second workpiece; The driving assembly (20) includes a slider (21) and a driving member (22). The slider (21) is disposed on the fixed assembly (10). The driving member (22) can drive the slider (21) to slide relative to the fixed assembly (10) along a preset axis. One end of the slider (21) along the preset axis can pass through the shaft hole (301) and correspond to the end face of the rotating shaft (201). The connector (30) is detachably disposed on the slider (21) and is used to detachably fix the slider (21) to the rotating shaft (201).

2. The dismounting tool according to claim 1, characterized in that The fixing component (10) includes a first fixing member (11) for detachably fixing to the second workpiece. The first fixing member (11) is provided with a sliding through hole (111) extending along the preset axis. The sliding member (21) is slidably disposed in the sliding through hole (111).

3. The tooling of claim 2, wherein, The fixing component (10) further includes a second fixing member (12) and a support member (13). The second fixing member (12) is arranged at intervals on the side of the first fixing member (11) away from the second workpiece. The two ends of the support member (13) are respectively connected to the first fixing member (11) and the second fixing member (12). The driving member (22) is disposed on the second fixing member (12).

4. The tooling of claim 3, wherein, The driving member (22) is rotatable relative to the second fixing member (12) about the preset axis, the sliding member (21) is provided with a first threaded hole (211) extending along the preset axis, and the driving member (22) is provided with a first threaded portion (221) that can be threadedly engaged with the first threaded hole (211).

5. The tooling of claim 4, wherein, The sliding member (21) includes a first sliding part (212) and a second sliding part (213). The first sliding part (212) is provided with a first threaded hole (211), and the second sliding part (213) is provided with an inter-connected clearance hole (214) and a first mounting hole (215). The second sliding part (213) has one end with the clearance hole (214) connected to the first sliding part (212), and the connector (30) can pass through the clearance hole (214) and the first mounting hole (215) in sequence and be detachably fixed to the rotating shaft (201).

6. The tooling of claim 3, wherein, Both ends of the support member (13) are detachably fixed to the first fixing member (11) and the second fixing member (12), respectively; and / or, The number of the support members (13) is multiple, and each of the support members (13) is arranged at circumferential intervals along the first fixing member (11).

7. The tooling of claim 2 wherein, The first fastener (11) is further provided with at least two second mounting holes (112) arranged circumferentially along the sliding through hole (111) so that the fastener (40) can pass through the second mounting holes (112) and be detachably fixed to the second workpiece.

8. The tooling of claim 7, wherein, The first fixing member (11) has a mounting groove (113) on one side away from the second workpiece. The sliding through hole (111) and the second mounting hole (112) are both located on the bottom wall of the mounting groove (113).

9. The tooling of claim 7, wherein, The second mounting hole (112) extends radially outward from the sidewall of the sliding through hole (111).

10. A fan assembly characterized by, The device includes a fan body (200), an impeller (300), and a disassembly and assembly tool as described in any one of claims 1-9, wherein the disassembly and assembly tool is used to insert the shaft (201) of the fan body (200) into the shaft hole (301) of the impeller (300) or to pull it out from the shaft hole (301).

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