Fixing pin attachment tool and attachment method

Abstract

The installation tool (100) and installation method for a securement pin (20) include a tube (110), a pressure pin (120), and a drive nut (140). A chamber (111) is provided within the tube (110), and the chamber (111) is configured to accommodate a plurality of securement pins (20), the tube (110) has a first chute (112) and a second chute on opposing surfaces that communicate with the chamber (111), and the tube (110) is provided at both ends with a first opening (113) and a second opening (114) that communicate with the chamber (111), and the plurality of securement pins (20) are configured to enter the chamber (111) through the first opening (113) and exit the chamber (111) through the second opening (114). The pressing pin (120) is movably mounted on the tube (110) through the first chute (112) and the second chute, and at least a portion of the pressing pin (120) is exposed to the surface of the tube (110). The drive nut (140) is connected to the tube (110) and is configured to drive the pressing pin (120) to move in the direction of the second opening (114).

Description

Technical Field

[0001] The present invention relates to the field of engine assembly, and particularly to a fixing pin mounting tool and a mounting method.

Background Art

[0002] The high-pressure turbine rotor is an important component of an aircraft engine. As a rotating part, it needs to be dynamically balanced before being installed in the engine. Adding counterweights is an important measure to eliminate the unbalance of the rotor. FIG. 1 is a structural diagram of a high-pressure turbine rotor. Referring to FIG. 1, the weight block 30 is fixed to the flange edge by a fixing pin 20. Since the fixing pin 20 is small in volume and is a small component, it is difficult to fix and the difficulty of manual installation is high.

[0003] The conventional assembly mode generally uses pliers to clamp the fixing pin 20, align it with the mounting hole (not shown), and then knock the fixing pin 20 into the mounting hole with a hand hammer. However, the area near where the fixing pin 20 is installed has a complex shape. For example, there are complex irregular grooves (i.e., groove 11 and groove 12) on both the inner and outer sides of the turbine disk 10. If it is clamped with pliers, the fixing pin 20 is likely to fall off and drop into the grooves on both sides. Since the fixing pin 20 is too small and the grooves are irregular and have a complex irregular surface, once the fixing pin 20 drops into the grooves on both sides, it becomes difficult to find and take out the fixing pin 20 from the grooves.

Summary of the Invention

Problems to be Solved by the Invention

[0004] Provide a fixing pin mounting tool that reduces the risk of the fixing pin falling, increases the safety of assembly, reduces the difficulty of installation, improves the assembly efficiency, has a simple structure, is easy to operate, and has a low cost.

Means for Solving the Problems

[0005] It includes a tube body, a pressing pin and a driving nut. A chamber is provided in the tube body. The chamber is configured to accommodate a plurality of fixing pins. The surface of the tube body is provided with a first chute and a second chute which are oppositely arranged and communicate with the chamber. A first opening and a second opening communicating with the chamber are respectively provided at both ends of the tube body. The plurality of fixing pins are configured to enter the chamber through the first opening and exit the chamber through the second opening. The pressing pin penetrates through the first chute and the second chute and is movably provided on the tube body. At least a part of the pressing pin exposes the surface of the tube body. The driving nut is connected to the tube body and is configured to drive the pressing pin to move in the direction of the second opening, providing a mounting tool for the fixing pins.

[0006] In one embodiment of the present invention, the mounting tool further includes a pressing cap drilled on the surface of the tube body. The driving nut drives the pressing pin to move in the direction of the second opening by means of the pressing cap.

[0007] In one embodiment of the present invention, the pressing cap is provided with a fixing groove corresponding to the pressing pin.

[0008] In one embodiment of the present invention, the tube body further includes a converging portion. The inner diameter of at least a part of the chamber in the converging portion is smaller than the diameter of the fixing pin.

[0009] In one embodiment of the present invention, a plurality of strip grooves are provided on the surface of the converging portion.

[0010] In one embodiment of the present invention, the converging portion is made of an elastic material.

[0011] In one embodiment of the present invention, a male thread is provided on the surface of the tube body, and a female thread is provided on the driving nut. The driving nut is screwed onto the tube body.

[0012] In one embodiment of the present invention, at least one of the following is included: the diameter of the fixing pin is 2 mm or less, and the height of the fixing pin is 4 mm or less.

[0013] In one embodiment of the present invention, the fixing pin is configured to fix the weight block of the turbine rotor.

[0014] Another aspect of the present invention is a method for attaching a fixing pin using the attaching tool described above, including: step a of mounting the plurality of fixing pins into the chamber of the tubular body through the first opening; step b of passing the pressing pin through the first chute and the second chute; step c of rotating the drive nut to move the pressing pin in the direction of the second opening until a part of the fixing pin closest to the second opening among the plurality of fixing pins exits the chamber through the second opening; step d of aligning the fixing pin closest to the second opening with the mounting hole and continuing to rotate the drive nut until the fixing pin closest to the second opening completely exits the chamber and enters the mounting hole; and step e of repeating steps c to d until the attachment of the plurality of fixing pins is completed.

[0015] Since the present invention adopts the above technical solution, compared with the prior art, it has the following remarkable advantages. The attaching tool for the fixing pin of the present invention includes a tubular body, a pressing pin, and a drive nut. A chamber capable of accommodating a plurality of fixing pins is provided inside the tubular body, and a first opening and a second opening suitable for the entry and exit of the plurality of fixing pins are respectively provided at both ends of the tubular body. By moving the pressing pin in the direction of the second opening with the drive nut to push the plurality of fixing pins, the plurality of fixing pins can be sequentially withdrawn from the chamber of the tubular body. This attaching tool for the fixing pin reduces the risk of the fixing pin falling, increases the safety of assembly, reduces the difficulty of attachment, improves the assembly efficiency, has a simple structure, is easy to operate, and has a low cost. To further clarify and make the above objects, features, and advantages of the present invention more understandable, the specific embodiments of the present invention will be described in detail below with reference to the drawings.

Brief Description of the Drawings

[0016]

Figure 1

Figure 2

Figure 3

Figure 4

Figure 5

Figure 6

Modes for Carrying Out the Invention

[0017] To further clarify and make the above objects, features, and advantages of the present invention more understandable, the embodiments of the present invention will be described in detail below with reference to the drawings.

[0018] To fully understand the present invention, many detailed contents are described in the following description. However, since the present invention can be implemented in other modes different from the description here, it is not limited to the specific embodiments disclosed below.

[0019] As shown in the present application and the claims, unless clearly indicated in the context, terms such as "one", "a", "a kind" and / or "the" do not particularly specify the singular form and may include the plural form. Generally, the terms "comprise" and "include" are merely for indicating that they include the clearly indicated steps and elements, and these steps and elements are not exclusive enumerations, and the method or device may also include other steps or elements.

[0020] When explaining the embodiments of the present invention in detail, for the convenience of explanation, the cross-sectional views showing the device structure do not follow the general proportions and are locally enlarged, and the schematic diagrams are merely illustrative and do not limit the scope of the claims of the present invention. Furthermore, in actual manufacturing, the three-dimensional spatial dimensions of length, width and depth should be included.

[0021] For the convenience of explanation, here, for example, spatial relationship terms such as "under", "below", "lower", "down", "above", "up" are used to describe the relationship between one element or feature shown in the drawing and another element or feature. It should be understood that these spatial relationship terms are intended to include directions other than the direction shown in the drawing for the device during use or operation. For example, when the device in the drawing is inverted, the direction of the element that is "below" or "under" or "down" another element or feature will be changed to "above" the other element or feature. Therefore, the exemplary terms "below" and "down" may include the two directions of up and down. Since the device has other orientation directions (rotating 90 degrees or being located in other directions), the terms used to explain the spatial relationships used here are interpreted accordingly. Furthermore, it should be understood that when explaining that one layer is "between" two layers, it may be the only layer between the two layers, or there may be one or more intervening layers.

[0022] In the context of the present application, a structure in which a described first feature is "above" a second feature may include embodiments formed such that the first feature and the second feature are in direct contact, or may include embodiments in which another feature is formed between the first feature and the second feature, and thus there is a possibility that the first feature and the second feature do not directly contact each other.

[0023] It should be understood that when a part is described as being "above another part", "connected to another part", "coupled to another part", or "in contact with another part", it may be directly above the other part, connected or coupled to the other part, in contact with the other part, and there may be an insertion component. In contrast, when a part is described as being "directly above another part", "directly connected to another part", "directly coupled to another part", or "in direct contact with", there is no insertion component.

[0024] The following embodiments of the present invention provide a fixing pin attachment tool, which reduces the risk of the fixing pin falling, increases the safety of assembly, reduces the difficulty of attachment, improves the assembly efficiency, has a simple structure, is easy to operate, and has a low cost.

[0025] FIG. 2 is a schematic diagram of a fixing pin attachment tool according to an embodiment of the present invention. FIG. 3 is a schematic cross-sectional view of a fixing pin attachment tool according to an embodiment of the present invention. Here, FIG. 3 is a schematic cross-sectional view with the broken line shown in FIG. 2 as the cross-section line.

[0026] Next, this fixing pin attachment tool will be described with reference to FIGS. 2 and 3. It should be understood that the following description is merely illustrative, and those skilled in the art can make various changes without departing from the spirit of the present invention.

[0027] Referring to FIGS. 2 and 3, this fixing pin attachment tool 100 includes a tubular body 110, a pressing pin 120, and a driving nut 140.

[0028] A chamber 111 is provided inside the tube body 110. The chamber 111 is configured to accommodate a plurality of fixing pins 20. The surface of the tube body 110 is provided with a first chute 112 and a second chute (not shown) that are opposed to each other and communicate with the chamber 111. A first opening 113 and a second opening 114 that communicate with the chamber 111 are respectively provided at both ends of the tube body 110. The plurality of fixing pins 20 are configured to enter the chamber 111 through the first opening 113 and exit the chamber 111 through the second opening 114.

[0029] It should be understood that the inner diameter of the chamber 111 should be compatible with the diameter of the fixing pin 20. Preferably, in the following embodiments of the present invention, the inner diameter of the chamber 111 is equal to the diameter of the fixing pin 20.

[0030] In some embodiments, the inner wall of the chamber 111 may be made of an elastic material, and the inner diameter of the chamber 111 may be slightly smaller than the diameter of the fixing pin 20, thereby ensuring that the plurality of fixing pins 20 cannot move within the chamber 111 without receiving an external thrust.

[0031] The first chute 112 and the second chute can be distributed in the extending direction of the tube body 110 on the surface of the tube body 110.

[0032] Preferably, in some embodiments shown in FIGS. 2 and 3, the outer shape of the tube body 110 is cylindrical. The center line of the first chute 112 is flush with the center line of the second chute and the center line of the tube body 110, but the present invention is not limited thereto.

[0033] The pressing pin 120 is movably provided on the tube body 110 through the first chute 112 and the second chute, and at least a part of the pressing pin 120 exposes the surface of the tube body 110. The first chute 112 and the second chute can function to guide the pressing pin 120 during the moving process.

[0034] In some examples, only one end of the pressing pin 120 may be exposed on the surface of the tube body 110. In other examples, both ends of the pressing pin 120 can be exposed on the surface of the tube body 110 simultaneously, and those skilled in the art can make corresponding adjustments according to actual requirements, and the present invention is not limited thereto.

[0035] The drive nut 140 is connected to the tube body 110 and is configured to drive the pressing pin 120 to move in the direction of the second opening 114.

[0036] Exemplarily, the pressing pin 120 can be passed through the first chute 112 and the second chute, and moved to the end face close to the first opening 113 of the fixing pin closest to the first opening 113 among the plurality of fixing pins 20. In this way, in the process that the pressing pin 120 is driven by the drive nut 140 to move in the direction of the second opening 114, the plurality of fixing pins 20 in the chamber 111 are moved to move in the direction of the second opening 114.

[0037] In an embodiment of the present invention, external threads (not shown) are provided on the surface of the tube body 110, internal threads (not shown) are provided on the drive nut 140, and the drive nut 140 is screwed onto the tube body 110. In this way, when the drive nut 140 is rotated, the drive nut 140 can move on the surface of the tube body 110 in a screw pair to move the pressing pin 120 in the direction of the second opening 114.

[0038] Preferably, the distribution of the external threads on the surface of the tube body 110 enables the pressing pin 120 to push all of the plurality of fixing pins 20 in the chamber 111 out of the chamber 111 when the drive nut 140 moves to the limit position in the direction of the second opening 114 on the surface of the tube body 110.

[0039] In one embodiment of the present invention, the mounting tool 100 can further include a pressing cap 130 positioned between the pressing pin 120 and the drive nut 140. The pressing cap 130 is formed through the surface of the tubular body 110, and the drive nut 140 drives the pressing pin 120 to move in the direction of the second opening 114 by means of the pressing cap 130.

[0040] In the example shown in FIG. 2, a fixing groove 131 corresponding to the pressing pin 120 is provided on the side of the pressing cap 130 where the pressing pin 120 is located. The pressing pin 120 can be fixed to the fixing groove 131 of the pressing cap 130 during the process of moving in the direction of the second opening 114.

[0041] Referring to FIG. 3, in one preferred example of the present invention, both ends of the pressing pin 120 are simultaneously exposed on the surface of the tubular body 110, and the diameter of the pressing pin 120 is compatible with (for example, the same as) the diameter of the pressing cap 130. In this way, during the process of the drive nut 140 moving the pressing pin 120 in the direction of the second opening 114 through the pressing cap 130, both ends of the pressing pin 120 are well balanced.

[0042] In one embodiment of the present invention, the diameter of the fixing pin 20 may be 2 mm or less. In some embodiments, the height of the fixing pin may be 4 mm or less.

[0043] Referring to FIG. 1, in one embodiment of the present invention, the fixing pin 20 can be used to fix the weight block 30 of the turbine rotor.

[0044] FIG. 4 is a schematic cross-sectional view of the converging portion of the mounting tool for the fixing pin according to one embodiment of the present invention. Referring to FIGS. 2 to 4, in one embodiment of the present invention, the tubular body 110 further includes a converging portion 115. Here, the inner diameter of at least a part of the chamber 111 located within the converging portion 115 is smaller than the diameter of the fixing pin 20.

[0045] Exemplarily, the inner diameter of the chamber 111 where only a part is located within the converging portion 115 may be smaller than the diameter of the fixing pin 20. The inner diameter of the chamber 111 where all are located within the converging portion 115 may also be smaller than the diameter of the fixing pin 20.

[0046] By making the inner diameter of at least a part of the chamber 111 located within the converging portion 115 smaller than the diameter of the fixing pin 20, it can be ensured that the plurality of fixing pins 20 cannot exit from the chamber 111 through the second opening 114 without receiving an external thrust.

[0047] Continuing to refer to FIG. 2, in one embodiment of the present invention, a plurality of strip grooves 115a can be provided on the surface of the converging portion 115. The plurality of strip grooves 115a can partition the converging portion 115 into a plurality of lobe-shaped structures so that the converging portion 115 has a certain elasticity.

[0048] In some examples, the converging portion 115 may be made of an elastic material.

[0049] Thus, in the process where the plurality of fixing pins 20 in the chamber 111 receive an external thrust (for example, the pushing from the pressing pin 120) and move in the direction of the second opening 114, the inner diameter of at least a part of the chamber 111 located within the converging portion 115 correspondingly increases under the pressing force, whereby the plurality of fixing pins 20 can sequentially exit from the chamber 111 through the second opening 114.

[0050] In the above embodiments of the present invention, the converging portion 115 is a part of the tubular body 110. In another embodiment of the present invention, the converging portion 115 may be a separate component. The converging portion 115 can be fixedly connected to the tubular body 110 by various connecting means including screwing, and the present invention is not limited thereto.

[0051] Those skilled in the art can make corresponding adjustments to the specific dimensions (for example, length) of the converging portion 115 according to actual needs, and the present invention is not limited thereto.

[0052] The fixing pin mounting tool 100 of the present invention inserts a plurality of fixing pins 20 into the chamber 111 of the tubular body 110, effectively avoiding the fixing pins 20 from falling into the deformed grooves (such as groove 11 and groove 12) on both the inner and outer sides of the turbine disk 10 during the mounting process, and improving the safety of assembly.

[0053] Also, by appropriately providing the capacity of the chamber 111, this mounting tool 100 can accommodate a plurality of fixing pins 20 simultaneously, reducing the time required to take out the fixing pins 20 in several times, shortening the mounting cycle, and improving the assembly efficiency.

[0054] On the other hand, the present invention expands to a fixing pin mounting tool 100 that can be handheld and operated for small fixing pins 20, reducing the difficulty of mounting. This fixing pin mounting tool 100 has a simple structure, is easy to operate, and has a low cost.

[0055] The above embodiments of the present invention provide a fixing pin mounting tool, which reduces the risk of the fixing pin falling, increases the safety of assembly, reduces the difficulty of mounting, improves the assembly efficiency, has a simple structure, is easy to operate, and has a low cost.

[0056] Another aspect of the present invention provides a fixing pin mounting method, which reduces the risk of the fixing pin falling, increases the safety of assembly, reduces the difficulty of mounting, improves the assembly efficiency, is easy to operate, and has a low cost.

[0057] This method of attaching the fixing pins includes step a of inserting a plurality of fixing pins into the chamber of the tubular body through the first opening, step b of passing the pressing pin through the first chute and the second chute, step c of rotating the drive nut to move the pressing pin in the direction of the second opening until a part of the fixing pin closest to the second opening among the plurality of fixing pins exits the chamber through the second opening, step d of aligning the fixing pin closest to the second opening with the mounting hole and continuing to rotate the drive nut until the fixing pin closest to the second opening completely exits the chamber and enters the mounting hole, and step e of repeating steps c to d until the attachment of all the plurality of fixing pins is completed.

[0058] FIG. 5 is a flowchart of a method for attaching fixing pins according to an embodiment of the present invention. FIG. 6 is a schematic diagram of a method for attaching fixing pins according to an embodiment of the present invention.

[0059] Next, this attachment method will be described with reference to FIGS. 5 and 6. It should be understood that the following description is merely illustrative, and those skilled in the art can make various changes without departing from the spirit of the present invention.

[0060] Note that this attachment method may be implemented by a fixing pin attachment tool 100 as shown in FIGS. 2 to 4 or a modified example thereof, and the present invention is not limited thereto.

[0061] Referring to FIG. 5, this attachment method includes the following steps. In step a, a plurality of fixing pins 20 are inserted into the chamber 111 of the tubular body 110 through the first opening 113.

[0062] Exemplarily, a plurality of fixing pins 20 are inserted into the chamber 111 of the tubular body 110 with their ends in contact through the first opening 113.

[0063] Referring to FIG. 2, in one embodiment of the present invention, the mounting tool 100 can further include a pressing cap 130 positioned between the pressing pin 120 and the driving nut 140. The pressing cap 130 is formed through the surface of the tube body 110, and the driving nut 140 drives the pressing pin 120 to move in the direction of the second opening 114 by means of the pressing cap 130.

[0064] In one embodiment of the present invention, the diameter of the fixing pin 20 may be 2 mm or less. In some embodiments, the height of the fixing pin may be 4 mm or less.

[0065] Referring to FIG. 1, in one embodiment of the present invention, the fixing pin 20 can be used to fix the weight block 30 of the turbine rotor.

[0066] Optionally, before step a, the method can further include the step of removing the pressing pin 120 from the tube body 110.

[0067] Optionally, before step a, the method can further include the steps of removing the pressing pin 120, the pressing cap 130, and the driving nut 140 from the tube body 110 respectively, and the embodiments of the present invention are not limited thereto.

[0068] In step b, the pressing pin 120 is passed through the first chute 112 and a second chute (not shown).

[0069] The pressing pin 120 can be passed through the first chute 112 and the second chute and moved to the end face close to the first opening 113 of the fixing pin closest to the first opening 113 among the plurality of fixing pins 20. At least a part of the pressing pin 120 exposes the surface of the tube body 110. The first chute 112 and the second chute can function to guide the pressing pin 120 during the moving process.

[0070] In some examples, only one end of the pressing pin 120 may expose the surface of the tube body 110. In other examples, both ends of the pressing pin 120 can expose the surface of the tube body 110 simultaneously, and those skilled in the art can make corresponding adjustments according to actual needs, and the present invention is not limited thereto.

[0071] Referring to FIG. 3, in one preferred example of the present invention, both ends of the pressing pin 120 expose the surface of the tube body 110 simultaneously, and the diameter of the pressing pin 120 is compatible with (for example, the same as) the diameter of the pressing cap 130. In this way, in the process of the driving nut 140 moving the pressing pin 120 in the direction of the second opening 114 through the pressing cap 130, both ends of the pressing pin 120 can be well balanced.

[0072] Optionally, after step b, the steps of attaching the pressing cap 130 and the driving nut 140 to the tube body 110 respectively can be further included.

[0073] In the example shown in FIG. 2, a fixing groove 131 corresponding to the pressing pin 120 is provided on the side of the pressing cap 130 where the pressing pin 120 is located. The pressing pin 120 can be fixed in the fixing groove 131 of the pressing cap 130 during the process of moving in the direction of the second opening 114.

[0074] In step c, the driving nut 140 is rotated to move the pressing pin 120 in the direction of the second opening 114 until a part of the fixing pin closest to the second opening 114 among the plurality of fixing pins 20 exits from the chamber 111 through the second opening 114.

[0075] In one embodiment of the present invention, a male thread (not shown) is provided on the surface of the tube body 110, a female thread (not shown) is provided on the driving nut 140, and the driving nut 140 is screwed onto the tube body 110. In this way, when the driving nut 140 is rotated, the driving nut 140 moves on the surface of the tube body 110 in a screw pair to move the pressing pin 120 in the direction of the second opening 114.

[0076] Referring to FIGS. 2 to 4, in one embodiment of the present invention, the tube body 110 further includes a converging portion 115. Here, the inner diameter of at least a part of the chambers 111 located within the converging portion 115 is smaller than the diameter of the fixing pin 20.

[0077] Exemplarily, the inner diameter of the chambers 111 where only a part is located within the converging portion 115 may be smaller than the diameter of the fixing pin 20. The inner diameter of the chambers 111 where all are located within the converging portion 115 may also be smaller than the diameter of the fixing pin 20.

[0078] By making the inner diameter of at least a part of the chambers 111 located within the converging portion 115 smaller than the diameter of the fixing pin 20, it can be ensured that the plurality of fixing pins 20 cannot exit from the chambers 111 through the second opening 114 without receiving an external thrust.

[0079] Continuing to refer to FIG. 2, in one embodiment of the present invention, a plurality of strip grooves 115a can be provided on the surface of the converging portion 115. The plurality of strip grooves 115a can partition the converging portion 115 into a plurality of lobe-shaped structures so that the converging portion 115 has a certain elasticity.

[0080] In some examples, the converging portion 115 may be made of an elastic material.

[0081] Thus, in the process where the plurality of fixing pins 20 in the chambers 111 receive an external thrust (pushing from the pressing pin 120) and move in the direction of the second opening 114, the inner diameter of at least a part of the chambers 111 located within the converging portion 115 correspondingly increases under the pressing force, whereby the plurality of fixing pins 20 can sequentially exit from the chambers 111 through the second opening 114.

[0082] In the above embodiments of the present invention, the converging portion 115 is a part of the tube body 110. In another embodiment of the present invention, the converging portion 115 may be a separate component. The converging portion 115 can be fixedly connected to the tube body 110 by various connection means including screwing, and the present invention is not limited thereto.

[0083] Those skilled in the art can make corresponding adjustments to the specific dimensions (e.g., length) of the converging portion 115 according to actual needs, and the present invention is not limited thereto.

[0084] Preferably, in this step, the portion where the fixing pin closest to the second opening 114 exits from the chamber 111 may be less than half of the height of a single fixing pin 20, but the present invention is not limited thereto.

[0085] In step d, align the fixing pin closest to the second opening 114 with the mounting hole 31, and continue to rotate the drive nut 140 until the fixing pin closest to the second opening 114 completely exits from the chamber 111 and enters the mounting hole 31.

[0086] Referring to FIG. 6, the mounting tool 100 can be moved above the weight block 30 of the turbine rotor to be fixed, and the fixing pin closest to the second opening 114 can be aligned with the corresponding mounting hole 31. Next, continue to rotate the drive nut 140 until the fixing pin closest to the second opening 114 completely exits from the chamber 111 and enters the mounting hole 31.

[0087] In step e, repeat steps c to d until the installation of the plurality of fixing pins 20 is completed.

[0088] By the above steps, all of the plurality of fixing pins 20 in the chamber 111 can be respectively installed in the corresponding mounting holes 31.

[0089] The method for installing the fixing pins of the present invention can effectively avoid the fixing pins 20 falling into the irregular grooves (e.g., groove 11 and groove 12) on both the inner and outer sides of the turbine disk 10 during the installation process by mounting the plurality of fixing pins 20 in the chamber 111 of the tube body 110 of the mounting tool 100, thereby improving the safety of assembly.

[0090] Also, by appropriately providing the capacity of the chamber 111, this mounting tool 100 can accommodate a plurality of fixing pins 20 simultaneously, reduce the time taken to take out the fixing pins 20 in several batches, shorten the mounting cycle, and improve the assembly efficiency.

[0091] On the other hand, the present invention reduces the difficulty of attachment by expanding to a mounting tool 100 for a small fixing pin 20 that can be manually operated. This mounting method is easy to operate and has a low cost.

[0092] Here, with reference to the flowchart shown in FIG. 5, the steps / operations performed by the mounting method according to the embodiments of the present application will be described. It should be understood that these steps / operations are not necessarily executed exactly in order. Conversely, various steps / operations may be processed in reverse order or simultaneously. Also, other steps / operations may be added to these processes, or one or more steps / operations may be removed from these processes.

[0093] Other implementation details of the mounting method of this embodiment can be referred to the embodiments described with reference to FIGS. 2 to 4, which will not be elaborated here. Those skilled in the art can appropriately adjust the priority order of the specific operation steps of this mounting method according to actual needs, and the present invention is not limited thereto.

[0094] The above embodiments of the present invention provide a method for mounting a fixing pin. This mounting method reduces the risk of the fixing pin falling, increases the safety of assembly, reduces the difficulty of mounting, improves the assembly efficiency, is easy to operate, and has a low cost.

[0095] In the above disclosure, some embodiments of the present invention that are considered currently useful are described by various examples. However, such details are for the purpose of explanation only, and the appended claims are not limited to the disclosed embodiments. Rather, it should be understood that the claims are intended to cover any combination of all modifications and equivalents that satisfy the spirit and scope of the embodiments of the present invention.

[0096] Having described the basic concepts above, it is clear to those skilled in the art that the above disclosure of the invention is merely illustrative and does not limit the present application. Although not explicitly described in this specification, those skilled in the art can make various modifications, improvements, and corrections to the present application. Such modifications, improvements, and corrections are suggested in the present application, and therefore, such modifications, improvements, and corrections are still within the spirit and scope of the exemplary embodiments of the present application.

[0097] This application describes the embodiments of this application using specific terms. For example, "one embodiment", "an embodiment", and / or "some embodiments" mean features, structures, or characteristics related to at least one embodiment of this application. Therefore, it should be emphasized and noted that "an embodiment" or "one embodiment" or "one alternative embodiment" described in two or more different places in this specification does not necessarily refer to the same embodiment. Also, some features, structures, or characteristics in one or more embodiments of this application can be combined as appropriate.

[0098] Furthermore, unless explicitly stated in the claims, the order of process elements and arrays, the use of alphanumerics, or the use of other names described herein are not suitable for limiting the flow and order of methods herein. In the above disclosure, some embodiments of the present invention that are considered currently useful are described by various examples. However, such details are for illustrative purposes only. The appended claims are not limited to the disclosed embodiments. Rather, the claims are intended to cover all modifications and combinations of equivalents that meet the spirit and scope of the embodiments of the present invention. For example, the system components described above may be implemented by hardware devices, but may also be implemented only by software solutions, such as installing the above-described system on a conventional server or mobile device.

[0099] Similarly, in order to simplify the expressions disclosed in this application and thereby assist in the understanding of one or more embodiments of the application, it should be noted that in the above description of the embodiments of this application, sometimes several features may be incorporated into one embodiment, drawing, or their description. However, this disclosure method does not mean that the features required for the subject matter of this application are more than those described in the claims. In fact, the features of the embodiments are fewer than all the features of the single embodiment disclosed above.

[0100] In some embodiments, numbers are used to describe the number of elements and attributes, and it should be understood that in some examples, such numbers suitable for the description of the embodiments are modified using the modifiers "about", "around", or "substantially". Unless otherwise specified, "about", "around", or "substantially" means that the said number allows a variation of ±20%. Accordingly, in some embodiments, the numerical parameters used in the specification and claims are approximate values that may vary according to the desired characteristics of the individual embodiments. In some embodiments, the numerical parameters take into account the defined number of significant digits and use the method of retaining general digits. In some embodiments of this specification, the numerical domains and parameters configured to confirm the breadth of the range are approximate values, but in specific embodiments, such numbers are set to be as accurate as possible within the executable range.

[0101] The present invention has already been described with reference to current specific embodiments, but it should be understood by those skilled in the art that the above embodiments are only for explaining the present invention, and various equivalent changes or modifications can be made without departing from the spirit of the present invention. Therefore, any changes and deformations of the above embodiments within the substantial spirit scope of the present invention should be included in the scope of the claims of this application.

Claims

1. A fixing pin mounting tool, comprising a tube body, a pressing pin, and a driving nut, a chamber is provided in the tube body, the chamber is configured to accommodate a plurality of fixing pins, the tube body has a first chute and a second chute provided opposite to each other on the surface and communicating with the chamber, first openings and second openings communicating with the chamber are respectively provided at both ends of the tube body, and the plurality of fixing pins are configured to enter the chamber through the first opening and exit the chamber through the second opening, the pressing pin is movably provided on the tube body through the first chute and the second chute, and both ends of the pressing pin simultaneously expose the surface of the tube body, the driving nut is connected to the tube body and is configured to drive the pressing pin to move in the direction of the second opening, the mounting tool further includes a pressing cap, a through hole is provided in the pressing cap, the pressing cap is slidable on the surface of the tube body through the through hole, and the driving nut drives the pressing pin to move in the direction of the second opening by the pressing cap, thereby pushing the fixing pin closest to the first opening among the plurality of fixing pins, and the fixing pin closest to the second opening among the plurality of fixing pins is used for fixing the weight block of the turbine rotor, a fixing groove corresponding to the pressing pin is provided in the pressing cap, and the pressing pin is fixed in the fixing groove, the tube body further includes a converging portion, the inner diameter of at least a part of the chamber in the converging portion is smaller than the diameter of the fixing pin, and the fixing pin closest to the second opening among the plurality of fixing pins is configured to fix the weight block of the turbine rotor to the turbine disk of the turbine rotor. The mounting tool is characterized by including this.

2. The mounting tool according to claim 1, wherein a plurality of strip grooves are provided on the surface of the converging portion.

3. The mounting tool according to claim 1, wherein the converging portion is made of an elastic material.

4. The mounting tool according to claim 1, wherein a male thread is provided on the surface of the tube body, a female thread is provided on the driving nut, and the driving nut is screwed onto the tube body.

5. The mounting tool according to claim 1, characterized by including at least one of the following: the diameter of the fixing pin is 2 mm or less, and the height of the fixing pin is 4 mm or less.

6. A method for mounting a fixing pin into mounting holes located in a turbine disk and a weight block of a turbine rotor, using the mounting tool according to any one of claims 1 to 5, comprising: Step a of mounting a plurality of fixing pins into the chamber of the tubular body through the first opening; Step b of passing the pressing pin through the first chute and the second chute; Step c of rotating the drive nut to move the pressing pin in the direction of the second opening until a part of the fixing pin closest to the second opening among the plurality of fixing pins exits the chamber through the second opening; Step d of aligning the fixing pin closest to the second opening with the mounting hole and continuing to rotate the drive nut until the fixing pin closest to the second opening completely exits the chamber and enters the mounting hole; Step e of repeating steps c to d until the plurality of fixing pins are respectively mounted in the aligned mounting holes.

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