Disassembling and assembling tool and fan assembly

Abstract

The utility model relates to a disassembling and assembling tool and a fan assembly. The disassembling and assembling tool comprises a connecting base and an operating rod. The connecting seat is provided with a mounting part and a threaded through hole, and the operating rod comprises a fixing part, an abutting part and a threaded section. When the impeller is assembled, the fixing part of the operating rod penetrates through the shaft hole of the impeller and is fixedly connected with the rotating shaft of the fan body, then the connecting base is connected to the operating rod in a sleeving mode and abuts against the impeller, the operating rod is fixed, the connecting base continues to be rotated, and the threaded section is matched with the threaded through hole, so that pressure on the impeller can be converted. Therefore, the rotating shaft is gradually pressed into the shaft hole. When the impeller is disassembled, the connecting seat is fixed on the impeller through the mounting part, then the abutting part penetrates through the threaded through hole to abut against the rotating shaft of the fan body, the connecting seat is fixed, the operating rod is rotated, thrust for pushing the impeller away from the rotating shaft can be generated, and therefore the rotating shaft is gradually disengaged from the shaft hole. Therefore, the impeller does not need to be hammered when being disassembled and assembled through the disassembling and assembling tool, so that operation is convenient, and damage is not prone to being caused.

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] Centrifugal fans are common devices in industrial production and are widely used in various fields. For example, in the chip aging test process, centrifugal fans are needed as the driving source for circulating air to meet the airflow requirements of the test environment. Centrifugal fans typically consist of a fan body and an impeller, with an interference fit between the fan body's shaft and the impeller. When installing and removing the impeller, a hammer is generally used to engage or disengage the shaft from the impeller's shaft hole. However, hammering is cumbersome and can easily damage the fan. Utility Model Content

[0003] Therefore, it is necessary to provide a convenient and damage-resistant disassembly and assembly tooling and fan assembly to address the above problems.

[0004] A disassembly / assembly fixture is used to insert or pull out the shaft of a first workpiece into or from the shaft hole of a second workpiece, the disassembly / assembly fixture comprising:

[0005] The connecting seat is provided with a mounting part and a threaded through hole, and the connecting seat can be fixedly connected to the second workpiece by means of the mounting part; and

[0006] An operating lever is capable of passing through the threaded through hole. The operating lever includes a fixing part, a supporting part, and a threaded section located between the fixing part and the supporting part, respectively disposed at opposite ends. The fixing part is capable of being fixedly connected to the rotating shaft of the first workpiece, the supporting part is capable of abutting against the rotating shaft of the first workpiece, and the threaded section is capable of being screwed into the threaded through hole.

[0007] In one embodiment, the connector includes a circular base and a sleeve extending from one side of the circular base, the mounting portion is disposed on the circular base, and the threaded through hole penetrates the circular base and the sleeve.

[0008] In one embodiment, the threaded through hole includes a first hole segment and a second hole segment that are interconnected. The first hole segment is closer to the circular base than the second hole segment and has an inner diameter larger than the second hole segment. The inner wall of the second hole segment is formed with an internal thread that can engage with the threaded segment.

[0009] In one embodiment, the outer wall of the connector is formed with a first anti-slip portion.

[0010] In one embodiment, the first anti-slip portion is configured as at least two slots distributed circumferentially along the connector.

[0011] In one embodiment, the mounting portion includes at least two bolt holes spaced circumferentially along the threaded through hole, through which bolts can pass and engage with a second threaded hole on the second workpiece to securely connect the connecting seat to the second workpiece.

[0012] In one embodiment, the surface of the fixing part is formed with an external thread, and the fixing part can be screwed into a first threaded hole on the end face of the first workpiece shaft, so that the fixing part is fixedly connected to the shaft of the first workpiece.

[0013] In one embodiment, the abutting portion is tapered and can partially pass through the first threaded hole and abut against the edge of the first threaded hole.

[0014] In one embodiment, the operating lever has a second anti-slip portion formed between the threaded section and the fixed portion, and a third anti-slip portion formed between the threaded section and the abutting portion.

[0015] A fan assembly includes a fan body, an impeller, and a disassembly / assembly fixture as described in any of the above embodiments, the disassembly / assembly fixture being used to insert the rotating shaft of the fan body into the shaft hole of the impeller or to pull it out of the shaft hole.

[0016] When assembling the impeller using the aforementioned assembly / disassembly fixture and fan assembly, first, the fixing part of the operating lever passes through the impeller's shaft hole and is fixedly connected to the fan body's rotating shaft. Then, the connecting seat is fitted onto the operating lever and abuts against the impeller. The operating lever is fixed, and the connecting seat is rotated further. The threaded section engages with the threaded through hole, generating pressure on the impeller and gradually pressing the rotating shaft into the shaft hole. When disassembling the impeller, first, the connecting seat is fixed to the impeller using the mounting part. Then, the operating lever is reversed, and the abutting part passes through the threaded through hole and abuts against the fan body's rotating shaft. The connecting seat is fixed, and the operating lever is rotated. This generates a thrust that pushes the impeller away from the rotating shaft, gradually disengaging the rotating shaft from the shaft hole. Therefore, using the aforementioned assembly / disassembly fixture to disassemble and assemble the impeller eliminates the need for hammering, making the operation convenient and less prone to damage. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the structure of the fan body and impeller in one embodiment of the present invention;

[0019] Figure 2 This is a schematic diagram of the disassembly and assembly tooling in one embodiment of the present invention;

[0020] Figure 3 for Figure 2 A cross-sectional view of the connecting seat in the disassembly and assembly fixture shown;

[0021] Figure 4 for Figure 1 The fan body and impeller shown utilize Figure 2 The diagram shows the fit relationship of the disassembly and assembly tools before installation.

[0022] Figure 5 for Figure 4 A cross-sectional view of the schematic diagram showing the fit relationship;

[0023] Figure 6 for Figure 1 The fan body and impeller shown utilize Figure 2 The diagram shows the fit relationship between the disassembly and assembly tools after installation.

[0024] Figure 7 for Figure 6 A cross-sectional view of the schematic diagram showing the fit relationship;

[0025] Figure 8 for Figure 1 The fan body and impeller shown utilize Figure 2 The diagram shows the fit relationship of the disassembly and assembly tooling before disassembly.

[0026] Figure 9 for Figure 8 A cross-sectional view of the schematic diagram showing the fit relationship;

[0027] Figure 10 for Figure 1 The fan body and impeller shown utilize Figure 2 The diagram shows the fit relationship of the disassembly and assembly tooling after disassembly.

[0028] Figure 11 for Figure 10 A cross-sectional view of the schematic diagram of the mating relationship shown. Detailed Implementation

[0029] To make the above-mentioned objects, features, and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a full understanding of this utility model. However, this utility model 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 utility model. Therefore, this utility model is not limited to the specific embodiments disclosed below.

[0030] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0031] 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 indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0032] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "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 mechanical connection or an electrical connection; 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, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0033] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0034] It should be noted that when an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. When an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0035] Please see Figure 1 and Figure 2 This utility model provides a disassembly and assembly fixture 10, which can assist in the assembly and disassembly of a first workpiece and a second workpiece.

[0036] The first workpiece includes a rotating shaft 21, and the second workpiece has a shaft hole 31. The disassembly and assembly fixture 10 is used to insert the rotating shaft 21 into the shaft hole 31 or to pull the rotating shaft 21 out of the shaft hole 31.

[0037] Specifically, in this embodiment, the first workpiece refers to the fan body 20, and the second workpiece refers to the impeller 30. Obviously, the above-mentioned assembly and disassembly fixture 10 can also be applied to assembling and disassembling other first workpieces with rotating shafts 21 and second workpieces with shaft holes 31.

[0038] Please see Figure 2 and Figure 3 In one embodiment of this utility model, the disassembly and assembly tool 10 includes a connecting seat 100 and an operating lever 200.

[0039] The connecting seat 100 can be formed from a material with high mechanical strength, such as metal, and is not easily deformed. The connecting seat 100 is provided with a mounting portion 111 and a threaded through hole 101. The connecting seat 100 can be fixedly connected to the second workpiece, i.e., the impeller 20, via the mounting portion 111. Furthermore, when the connecting seat 100 is fixedly connected to the impeller 20 via the mounting portion 111, the threaded through hole 101 is opposite to the shaft hole 21. The inner wall of the threaded through hole 101 has an internal thread, which can be distributed throughout the entire inner wall or only in a portion of the inner wall.

[0040] In this embodiment, the impeller 20 is further provided with a second threaded hole 32, and the mounting part 111 includes at least two bolt holes spaced apart circumferentially along the threaded through hole 101, and bolts 40 (see...) Figure 8 The bolt 40 can pass through the bolt hole and engage with the second threaded hole 32 to fix the connecting seat 100 to the impeller 20. Therefore, the installation and removal of the connecting seat 100 and the impeller 20 can be achieved simply by tightening the bolt 40, making the operation convenient. Furthermore, since only holes need to be drilled in the impeller 20 and the connecting seat 100, the structure remains simple.

[0041] It should be noted that in other embodiments, the mounting part 111 may also be fixedly connected to the impeller 20 by other means such as snap-fit.

[0042] The operating lever 200 is generally a one-piece molded metal rod with high mechanical strength. The operating lever 200 includes a fixing part 210, a supporting part 220, and a threaded section 230. The fixing part 210 and the supporting part 220 are respectively located at opposite ends of the operating lever 200, while the threaded section 230 is located between the fixing part 210 and the supporting part 220. The fixing part 210 can be fixedly connected to the first workpiece, i.e., the rotating shaft 21 of the fan body 20, while the supporting part 220 can abut against the rotating shaft 21. When the supporting part 220 abuts against the rotating shaft 21, the operating lever 200 is not fixed to the rotating shaft 21, and therefore can rotate relative to the rotating shaft 21 around its own axis.

[0043] In this embodiment, a first threaded hole 22 is provided on the end face of the rotating shaft 21 of the blower body 20, and an external thread is formed on the surface of the fixing part 210. Furthermore, the fixing part 210 can be screwed into the first threaded hole 22 to fix the fixing part 210 to the rotating shaft 21 of the first workpiece. It can be seen that the connection or separation of the fixing part 210 and the rotating shaft 21 can be achieved by rotating the operating lever 200, making operation convenient. Moreover, since only a hole needs to be made on the end face of the rotating shaft 21, the structure is not complicated.

[0044] Of course, in other embodiments, the fixing part 210 and the rotating shaft 21 can also be fixedly connected by means of a slot and a protrusion.

[0045] Furthermore, in this embodiment, the abutment portion 220 is tapered, and it can partially pass through the first threaded hole 22 and abut against the edge of the first threaded hole 22. The tapered abutment portion 220 can serve as a guide and limiter, allowing it to be smoothly inserted into the first threaded hole 22. Moreover, the tip of the abutment portion 220 can reduce the friction between it and the rotating shaft 21, thereby facilitating the rotation of the operating lever 200 when disassembling the impeller 30.

[0046] It should be noted that in other embodiments, the abutment portion 220 may not be tapered, and the abutment portion 220 may not extend into the first threaded hole 22 when it abuts against the end face of the rotating shaft 21.

[0047] The operating lever 200 can pass through the threaded through hole 101, and the threaded section 230 is provided with external threads, so it can be screwed into the threaded through hole 101. When the operating lever 200 and the connecting seat 100 rotate relative to each other about their own axes, the engagement of the threaded section 230 with the threaded through hole 101 can convert the rotational motion into linear motion along the axial direction of the operating lever 200. The external thread of the threaded section 230 can be a right-hand thread or a left-hand thread, and can be in the same or opposite direction to the external thread of the fixing part 210.

[0048] Please see Figure 4 and Figure 5 When assembling the impeller 30, first place the impeller 30 on the fan body 20 and align the rotating shaft 21 with the shaft hole 31. Then, pass the fixing part 210 of the operating rod 200 through the shaft hole 31 of the impeller and fix it to the rotating shaft 21 of the fan body. Next, fit the connecting seat 100 onto the operating rod 200 and make the connecting seat 100 abut against the impeller. At this time, the mounting part 111 is not connected to the impeller 20, so the connecting seat 100 can rotate relative to the impeller 20. Finally, fix the operating rod 200 and continue to rotate the connecting seat 100. The threaded section 230 and the threaded through hole 101 cooperate to convert the pressure applied by the connecting seat 100 to the impeller 30. Under the pressure of the connecting seat 100, the impeller 30 is gradually pressed down, thereby gradually pressing the rotating shaft 21 into the shaft hole 31 until the top of the rotating shaft 21 abuts against the bottom surface of the connecting seat 100, thus completing the installation. See details below. Figure 6 and Figure 7 After installation, rotate the connecting seat 100 and the operating lever 200 in the opposite direction to remove the disassembly fixture 10.

[0049] Please refer to it again. Figure 2 In this embodiment, the outer wall of the connector 100 is provided with a first anti-slip portion 121. The first anti-slip portion 121 can prevent slippage and facilitates wrench gripping or manual holding of the connector 100, thereby ensuring that the connector 100 can be rotated smoothly during installation.

[0050] Furthermore, in this embodiment, the first anti-slip portion 121 is configured as at least two slots distributed circumferentially along the connecting seat 100. The slots can be formed by cutting without adding extra structure to the connecting seat 100. Of course, in other embodiments, the first anti-slip portion 121 can also be formed by providing anti-slip protrusions or other methods on the outer wall of the connecting seat 100.

[0051] Please see Figure 8 and Figure 9 When disassembling the impeller 30, first fix the connecting seat 100 to the impeller 30 via the mounting part 111. Then, reverse the operating lever 200 and make the abutment part 220 pass through the threaded through hole 101 and abut against the rotating shaft 21 of the fan body. At this time, the threaded section 230 engages with the threaded through hole 101. Next, fix the connecting seat 100 and rotate the operating lever 200. The engagement of the threaded section 230 with the threaded through hole 101 converts into a thrust that pushes the connecting seat 100 away from the rotating shaft 21. The connecting seat 100 transmits the thrust to the impeller 30, thereby gradually lifting the impeller 30 so that the rotating shaft 21 gradually comes out of the shaft hole 31, thus completing the disassembly. See details below. Figure 10 and Figure 11 After installation, the connecting seat 100 can be removed from the impeller 30 to remove the disassembly and assembly fixture 10.

[0052] As can be seen, when using the aforementioned disassembly and assembly tool 10 to disassemble and assemble the impeller 30, there is no need to hammer it, making the operation convenient and less likely to cause damage. Moreover, the installation and disassembly process is not limited by the conditions of the production environment, and production personnel can complete the installation and disassembly of the impeller 30 independently.

[0053] Please refer to it again. Figure 2 In this embodiment, the operating lever 200 has a second anti-slip portion 240 formed between the threaded section 230 and the fixed portion 210, and a third anti-slip portion 250 formed between the threaded section 230 and the abutment portion 220.

[0054] Both the second anti-slip part 240 and the third anti-slip part 250 provide anti-slip properties, facilitating wrench gripping or manual handling. The second anti-slip part 240 and the third anti-slip part 250 can adopt the same structure as the first anti-slip part 121, such as a groove or anti-slip protrusion. When installing the impeller 30, the third anti-slip part 250 can be gripped with a wrench or manually held to secure the operating rod 200; conversely, when disassembling the impeller 30, the second anti-slip part 240 can be gripped with a wrench or manually held to rotate the operating rod 200.

[0055] Furthermore, in this embodiment, the outer diameter of the portion of the operating lever 200 located on the threaded section 230 facing the abutment portion 220 is smaller than the outer diameter of the threaded section 230. Specifically, the portion of the operating lever 200 located on the threaded section 230 facing the abutment portion 220 refers to both the abutment portion 220 and the third anti-slip portion 250. Since the outer diameter of this portion is smaller than the outer diameter of the threaded section 230, the operating lever 200 can be smoothly inserted into the threaded through hole 101.

[0056] Please refer to it again. Figure 2 and Figure 3 In this embodiment, the connecting seat 100 includes a circular base 110 and a sleeve 120 extending from one side of the circular base 110. The mounting part 111 is disposed on the circular base 110, and the threaded through hole 101 penetrates the circular base 110 and the sleeve 120.

[0057] The circular base 110 and sleeve 120 can be integrally formed, and the connecting seat 100 is T-shaped. Because the circular base 110 has a large base area, its contact surface with the impeller 30 is also large. Therefore, the connecting seat 100 has high stability when placed on the impeller 30. Furthermore, the larger contact area allows for a more even distribution of the force applied by the connecting seat 100 to the impeller 30 during installation and removal, thus ensuring smooth installation and removal.

[0058] Furthermore, in this embodiment, the threaded through hole 101 includes a first hole section 1011 and a second hole section 1012 that are interconnected. The first hole section 1011 is closer to the circular base 110 than the second hole section 1012, and its inner diameter is larger than that of the second hole section 1012. The inner wall of the second hole section 1012 is formed with an internal thread that can engage with the threaded section 230.

[0059] When the connecting seat 100 is placed on or connected to the impeller 30, the first hole section 1011 faces the impeller 30. The inner wall of the first hole section 1011 does not have internal threads, therefore it will not engage with the threaded section 230. Furthermore, because the inner diameter of the first hole section 1011 is relatively large, the rotating shaft 21 and the shaft hole 31 are well exposed, facilitating the passage of the fixing part 210 or the supporting part 220 and their corresponding engagement with the rotating shaft 21.

[0060] When assembling the impeller 30, the aforementioned disassembly and assembly tool 10 first passes the fixing part 210 of the operating rod 200 through the shaft hole 31 of the impeller 30 and is fixedly connected to the rotating shaft 21 of the fan body 20. Then, the connecting seat 100 is sleeved on the operating rod 200 and abuts against the impeller 30. The operating rod 200 is fixed and the connecting seat 100 is rotated. The threaded section 230 and the threaded through hole 101 cooperate to convert into pressure on the impeller 30, thereby gradually pressing the rotating shaft 21 into the shaft hole 31. When disassembling the impeller 30, first fix the connecting seat 100 to the impeller 30 via the mounting part 111, then reverse the operating lever 200 so that the abutment part 220 passes through the threaded through hole 101 and abuts against the rotating shaft 21 of the fan body 20. By fixing the connecting seat 100 and rotating the operating lever 200, a thrust is generated that pushes the impeller 30 away from the rotating shaft 21, thereby causing the rotating shaft 21 to gradually disengage from the shaft hole 31. It can be seen that when using the above-mentioned disassembly and assembly tool 10 to disassemble and assemble the impeller 30, there is no need to hammer it, so the operation is convenient and less likely to cause damage.

[0061] This utility model also provides a fan assembly, which includes a fan body 20, an impeller 30 and the disassembly and assembly fixture 10 in the aforementioned embodiments. Its specific implementation method and disassembly and assembly relationship are as described above, and will not be repeated here.

[0062] 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.

[0063] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A dismounting tool for inserting or pulling out a rotating shaft of a first workpiece into or from a shaft hole of a second workpiece, characterized by, The disassembly / assembly fixtures include: The connecting seat is provided with a mounting part and a threaded through hole, and the connecting seat can be fixedly connected to the second workpiece by means of the mounting part; and An operating lever is capable of passing through the threaded through hole. The operating lever includes a fixing part, a supporting part, and a threaded section located between the fixing part and the supporting part, respectively disposed at opposite ends. The fixing part is capable of being fixedly connected to the rotating shaft of the first workpiece, the supporting part is capable of abutting against the rotating shaft of the first workpiece, and the threaded section is capable of being screwed into the threaded through hole.

2. The dismounting tool according to claim 1, characterized in that The connecting seat includes a circular base and a sleeve extending from one side of the circular base. The mounting part is disposed on the circular base, and the threaded through hole penetrates the circular base and the sleeve.

3. The tooling of claim 2, wherein, The threaded through hole includes a first hole section and a second hole section that are interconnected. The first hole section is closer to the circular base than the second hole section and has an inner diameter larger than the second hole section. The inner wall of the second hole section is formed with an internal thread that can engage with the threaded section.

4. The tooling of claim 1, wherein The outer wall of the connector has a first anti-slip part.

5. The tooling of claim 4, wherein, The first anti-slip part is configured as at least two slots distributed circumferentially along the connecting seat.

6. The tooling of claim 1, wherein, The mounting portion includes at least two bolt holes spaced circumferentially along the threaded through hole, through which bolts can pass and engage with a second threaded hole on the second workpiece to fix the connecting seat to the second workpiece.

7. The tooling of claim 1 wherein, The surface of the fixing part is formed with an external thread, and the fixing part can be screwed into the first threaded hole on the end face of the first workpiece shaft, so that the fixing part is fixedly connected to the shaft of the first workpiece.

8. The disassembly and assembly fixture according to claim 7, characterized in that, The abutting part is tapered, and the abutting part can partially pass through the first threaded hole and abut against the edge of the first threaded hole.

9. The tooling of claim 1, wherein, The operating rod has a second anti-slip portion formed between the threaded section and the fixed portion, and a third anti-slip portion formed between the threaded section and the abutting portion.

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

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