Method for manufacturing a cover plate and a propeller shaft assembly

Abstract

The application belongs to the technical field of ship manufacturing, and discloses a manufacturing method of a cover plate and a tail shaft assembly. The cover plate is used for plugging a tail shaft hole arranged on a tail shaft layer. The tail shaft hole on the tail shaft layer is provided with a flange along the axial direction. The cover plate comprises a cover plate body and a first supporting piece. The diameter of the cover plate body is smaller than the inner diameter of the tail shaft hole. The first supporting piece is movably arranged on the cover plate body. The first supporting piece has a first position and a second position. When the first supporting piece is located at the first position, the first supporting piece can be clamped or abutted with the tail shaft layer to prevent the cover plate from passing through the tail shaft hole. When the first supporting piece is located at the second position, the cover plate can pass through the tail shaft hole. When the first supporting piece is located at the first position, the first supporting piece can be clamped in the tail shaft hole, so that the cover plate body can plug the tail shaft hole, and the workers can be prevented from falling from the tail shaft hole during construction. When the first supporting piece is located at the second position, the cover plate can pass through the tail shaft hole, so that the cover plate can be recycled, and the economy of the cover plate is improved.

Description

Technical Field

[0001] This invention relates to the field of shipbuilding, and more particularly to a method for assembling a cover plate and a stern shaft. Background Technology

[0002] In modern shipbuilding, in order to improve construction efficiency and shorten the ship assembly construction cycle, segmented construction is usually adopted. Before the assembly is completed, the stern shaft of the ship is not installed. Therefore, the stern shaft base has a stern shaft hole, which makes workers prone to falling from heights during construction.

[0003] The existing technology involves fixing a cover plate with a diameter larger than the tail shaft hole at the tail shaft hole during the construction process to prevent the tail shaft from falling from a height. However, after the tail shaft assembly is fabricated, the cover plate cannot be removed and requires force to remove it in order to install the tail shaft, which can easily damage the tail shaft assembly.

[0004] Therefore, there is an urgent need for a method to assemble the cover plate and tail shaft to solve the above problems. Summary of the Invention

[0005] The purpose of this invention is to provide a method for manufacturing a cover plate and tail shaft assembly, so as to solve the technical problem that the cover plate is easily damaged when it is removed after the tail shaft assembly is completed in the prior art.

[0006] To achieve this objective, the present invention adopts the following technical solution:

[0007] On one hand, a cover plate is provided for sealing a tail shaft hole opened on a tail shaft layer, wherein the tail shaft hole on the tail shaft layer is provided with a flange along the axial direction, and the cover plate includes:

[0008] The cover plate body has a diameter smaller than the inner diameter of the tail shaft hole;

[0009] A first support member is movably disposed on the cover plate body. The first support member has a first position and a second position. When the first support member is in the first position, the first support member is engaged or abutted against the tail shaft in layers to prevent the cover plate from passing through the tail shaft hole. When the first support member is in the second position, the cover plate can pass through the tail shaft hole.

[0010] Optionally, it also includes a second support member, which is disposed on the cover plate body. The second support member is spaced apart from the first support member along the circumference of the cover plate body. The second support member can be engaged or abutted with the tail shaft in layers. When the first support member is in the second position, the cover plate can pass through the tail shaft hole after being flipped.

[0011] Optionally, the first support includes an adjusting seat and an adjusting member, the adjusting seat being disposed on the cover plate body, and the adjusting member being movably disposed on the adjusting seat.

[0012] Optionally, the adjusting member includes a snap-fit ​​rod and a connecting rod; the connecting rod passes through the adjusting seat, and one end of the connecting rod is perpendicularly connected to the snap-fit ​​rod; when the first support member is in the first position, the snap-fit ​​rod is snapped or abutted against the tail shaft in layers; when the first support member is in the second position, the snap-fit ​​rod is parallel to the cover plate body and abuts against the adjusting seat.

[0013] Optionally, the adjusting member further includes an operating lever, which is connected at an angle to the other end of the connecting rod and is perpendicular to the locking rod; when the first support member is in the first position, the operating lever abuts against the adjusting seat.

[0014] Optionally, the adjusting member is hinged to the adjusting seat and is rotatable in a plane perpendicular to the cover plate body. The first support member further includes an elastic member, one end of which is connected to the adjusting member and the other end of which is connected to the adjusting seat. The elastic member is configured to provide an elastic force that switches the first support member to the second position.

[0015] Optionally, the cover plate body includes a cover plate bracket and a mesh plate, the mesh plate being disposed on the cover plate bracket, and the first support member being movably disposed on the cover plate bracket.

[0016] Optionally, a monitoring hole is provided on the cover plate body.

[0017] Secondly, a method for manufacturing a tail shaft assembly is provided. The tail shaft assembly includes a tail shaft outer plate and multiple tail shaft layers, each of the tail shaft layers having a corresponding tail shaft hole; the tail shaft outer plate covers the outer surface of each tail shaft layer, comprising the following steps:

[0018] The cover plate described above should be made or selected according to the size of the tail shaft hole;

[0019] The first support member of the plurality of cover plates is adjusted to a first position and snapped or abutted against the corresponding tail shaft layer;

[0020] Multiple tail shafts are stacked in layers;

[0021] Multiple tail shafts are connected in layers, and the tail shaft outer plates are installed to form the tail shaft assembly;

[0022] All of the first support members were adjusted to the second position and removed.

[0023] Optionally, the cover plate body is provided with a monitoring hole, and when multiple tail shafts are placed in layers, the multiple tail shafts are positioned and monitored through the monitoring hole.

[0024] The beneficial effects of this invention are:

[0025] The cover plate provided by the present invention has a diameter smaller than that of the tail shaft hole, and a first support member is provided on the cover plate body. The first support member has a first position and a second position. When the first support member is in the first position, it can be engaged with the tail shaft hole, so that the cover plate body blocks the tail shaft hole and prevents workers from falling out of the tail shaft hole during construction. When the first support member is in the second position, the cover plate can pass through the tail shaft hole, which facilitates the recycling of the cover plate and improves the economy of the cover plate.

[0026] The tail shaft assembly manufacturing method provided by the present invention, by using the above-mentioned cover plate, not only facilitates sealing the tail shaft hole and avoids the situation of falling from a height, but also allows the cover plate to be easily removed from the tail shaft assembly, effectively ensuring the verticality of the tail shaft hole. Attached Figure Description

[0027] To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings used in the description of the embodiments of the present invention will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the content of the embodiments of the present invention and these drawings without creative effort.

[0028] Figure 1 This is a schematic diagram of the internal structure of the tail shaft assembly provided in an embodiment of the present invention;

[0029] Figure 2 This is a schematic diagram of the structure of the cover plate provided in an embodiment of the present invention;

[0030] Figure 3 yes Figure 2 Enlarged view of point A in the middle;

[0031] Figure 4 This is a flowchart of the tail shaft assembly manufacturing method provided in the embodiment of the present invention.

[0032] In the picture:

[0033] 1. Cover plate body; 11. Cover plate bracket; 12. Mesh plate; 13. Monitoring hole;

[0034] 2. First support component; 21. Adjusting seat; 22. Adjusting component; 221. Locking rod; 222. Connecting rod; 223. Operating rod;

[0035] 3. Second support component;

[0036] 100. Tail shaft layering; 1001. Connecting parts;

[0037] 200. Tail shaft outer plate;

[0038] 300. Cover plate;

[0039] 1000. Tail shaft assembly. Detailed Implementation

[0040] To make the technical problems solved by the present invention, the technical solutions adopted, and the technical effects achieved clearer, the technical solutions of the present invention will be further described below in conjunction with the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are merely for explaining the present invention and are not intended to limit the present invention. Furthermore, it should be noted that, for ease of description, only the parts related to the present invention are shown in the accompanying drawings, not all of them.

[0041] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. The terms "first position" and "second position" refer to two different positions.

[0042] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to fixed connections or detachable connections; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal connections between two components. Those skilled in the art can understand the specific meaning of these terms in this invention based on the specific circumstances.

[0043] See Figures 1 to 3 In this field, the tail shaft assembly 1000 includes a tail shaft outer plate 200 and a plurality of tail shaft layers 100. The plurality of tail shaft layers 100 are stacked along the axial direction of the tail shaft base, and each tail shaft layer 100 is provided with a corresponding tail shaft hole. A cover plate is provided at the tail shaft hole, and the cover plate is configured to block the tail shaft hole. The tail shaft outer plate 200 is configured to cover the outer surface of the tail shaft layer 100.

[0044] The number of 100 layers on the tail shaft is set according to actual needs. Specifically, for example... Figure 1As shown, there are seven tail shaft layers 100. Along the stacking direction of the tail shaft assembly 1000, the size of the seven tail shaft layers 100 decreases.

[0045] Each tail shaft layer 100 has an axially oriented flange at the tail shaft hole, and the first support member 2 engages with the flange. Specifically, flanges protrude at both ends of the tail shaft layer 100 along the axial direction of the tail shaft hole, and a cover plate seals the flanges above the tail shaft layer 100. It can be understood that by setting the flanges, not only can the first support member 2 be better engaged, but more support area can also be provided for the subsequent installation of the tail shaft.

[0046] Each tail shaft layer 100 is also provided with a connector 1001, and two adjacent tail shaft layers 100 are connected together by the connector 1001. It can be understood that the length of the connector 1001 is greater than the height of the flange, so that there is enough space between two adjacent tail shaft layers 100 to facilitate the removal of the cover plate.

[0047] However, existing cover plates are usually fixedly installed at the tail shaft hole of the tail shaft layer 100 to prevent the tail shaft from falling from a height. But after the tail shaft assembly 1000 is manufactured, the cover plate cannot be removed and requires force to remove it in order to install the tail shaft, which can easily damage the tail shaft assembly 1000. To solve this problem, this embodiment provides a cover plate.

[0048] See Figure 1 In this embodiment, the cover plate 300 includes a cover plate body 1 and a first support member 2. The diameter of the cover plate body 1 is smaller than the inner diameter of the tail shaft hole. The first support member 2 is movably disposed on the cover plate body 1, and has a first position and a second position. In the first position, the first support member 2 can engage or abut against the tail shaft layer 100 to prevent the cover plate 300 from passing through the tail shaft hole. In the second position, the first support member 2 allows the cover plate 300 to pass through the tail shaft hole. It is understood that by setting the diameter of the cover plate body 1 to be smaller than the diameter of the tail shaft hole, and by providing the first support member 2 on the cover plate body 1, the first support member 2 has a first position and a second position. In the first position, the first support member 2 can engage or abut against the flange at the tail shaft hole on the cover plate body 1, thereby sealing the tail shaft hole and preventing workers from falling through the tail shaft hole during construction. The first support member 2 is located in the second position, and the cover plate 300 can pass through the tail shaft hole, which facilitates the recycling of the cover plate 300 and improves the economy of the cover plate 300.

[0049] In other embodiments, the flange may also have multiple grooves arranged circumferentially, and the first support 2 can be engaged in the grooves. In this embodiment, each tail shaft layer 100 is provided with a positioning blind hole. When the cover plate 300 blocks the tail shaft hole, the positioning blind hole is configured so that the first support 2 is inserted into the positioning blind hole. It can be understood that in this embodiment, when the first support 2 is in the first position and engaged with the flange to block the tail shaft hole, the end of the first support 2 that contacts the cover plate body 1 can be inserted into the positioning blind hole. The positioning blind hole can further limit the first support 2, ensuring that the first support 2 will not move and expose the tail shaft hole due to the worker touching the cover plate 300 during operation, further reducing the possibility of falling from a height and improving the safety of the cover plate 300 during use.

[0050] Furthermore, in some embodiments, the first support member 2 includes an adjusting seat 21 and an adjusting member 22. The adjusting seat 21 is disposed on the cover plate body 1, and the adjusting member 22 is movably disposed on the adjusting seat 21. It is understood that the adjusting member 22 can move and / or rotate relative to the adjusting seat 21, thereby realizing the switching of the first support member 2 between a first position and a second position.

[0051] Specifically, in this embodiment, the adjusting member 22 includes a snap-fit ​​rod 221 and a connecting rod 222. The connecting rod 222 passes through the adjusting seat 21, and one end of the connecting rod 222 is perpendicularly connected to the snap-fit ​​rod 221. When the first support member 2 is in the first position, the snap-fit ​​rod 221 snaps or abuts against the tail shaft layer 100. When the first support member 2 is in the second position, the snap-fit ​​rod 221 is parallel to the cover plate body 1 and abuts against the adjusting seat 21.

[0052] For example, see Figure 2 and Figure 3 In this embodiment, the adjusting seat 21 is a fixed cylinder mounted on the cover plate 300. The connecting rod 222 passes through the fixed cylinder, and the locking rod 221 is perpendicularly connected to the end of the connecting rod 222 away from the center of gravity of the cover plate 300. The other end of the connecting rod 222 is provided with a protrusion. It can be understood that the connecting rod 222 can rotate inside the fixed cylinder and move along the axial direction of the fixed cylinder. When the first support member 2 is in the first position, the locking rod 221 extends relative to the cover plate body 1 and can lock onto the flange of the tail shaft hole to seal the tail shaft hole of the cover plate 300, preventing workers from falling out of the tail shaft hole due to misstepping. When the first support member 2 is in the second position, that is, after the locking rod 221 rotates with the connecting rod 222 to the point where the locking rod 221 is parallel to the cover plate body 1, the locking rod 221 moves back along the axial direction of the fixed cylinder and no longer extends out of the cover plate body 1. Since the diameter of the cover plate body 1 is smaller than the diameter of the tail shaft hole, the cover plate body 1 can fall out of the tail shaft hole and be removed.

[0053] Furthermore, to facilitate switching the first support member 2 from the first position to the second position, the adjusting member 22 also includes an operating lever 223, which is angledly connected to the other end of the connecting rod 222. When the first support member 2 is in the first position, the operating lever 223 abuts against the adjusting seat 21.

[0054] For example, such as Figure 3 As shown, in this embodiment, the operating rod 223 is perpendicularly connected to the other end of the connecting rod 222. It can be understood that when the first support member 2 is in the first position, the locking rod 221 is perpendicular to the cover plate body 1 and engages with the flange, while the operating rod 223 abuts against the fixing cylinder and adheres to the cover plate body 1. When the first support member 2 needs to be switched to the second position, the operating rod 223 is rotated to be perpendicular to the cover plate body 1. At this time, the locking rod 221 is parallel to the cover plate body 1. Then, the operating rod 223 is moved, and the locking rod 221 moves with the operating rod 223 under the drive of the connecting rod 222. When the locking rod 221 moves to abut against the fixing cylinder, the locking rod 221 no longer extends out of the cover plate body 1. Since the diameter of the cover plate body 1 is smaller than the diameter of the tail shaft hole, the cover plate body 1 can fall out of the tail shaft hole, thus achieving removal.

[0055] In some other embodiments, the adjusting member 22 is hinged to the adjusting seat 21 and is rotatable in a plane perpendicular to the cover plate body 1. The first support member 2 also includes an elastic member, one end of which is connected to the adjusting member 22 and the other end of which is connected to the adjusting seat 21. The elastic member is configured to switch the first support member 2 to a second position by an elastic force.

[0056] For example, the adjusting seat 21 is located below the cover plate 300, and the adjusting member 22 includes a snap-fit ​​rod 221 and a connecting rod 222. The connecting rod 222 is hinged to the adjusting seat 21, and the snap-fit ​​rod 221 is perpendicularly connected to the end of the connecting rod 222 away from the center of gravity of the cover plate 300. It can be understood that the adjusting member 22 is located in the first position and can snap-fit ​​with the flange when overcoming the elastic restoring force of the elastic member. After the cover plate 300 is lifted, the snap-fit ​​rod 221 in the adjusting member 22 separates from the flange, and the adjusting member 22 switches to the second position under the action of the elastic restoring force of the elastic member, so that the diameter of the cover plate body 1 is smaller than the diameter of the tail shaft hole, and the cover plate body 1 can fall out of the tail shaft hole to achieve removal.

[0057] Furthermore, in some embodiments, the cover plate 300 further includes a second support member 3, which is disposed on the cover plate body 1. The second support member 3 is spaced apart from the first support member 2 along the circumference of the cover plate body 1. The second support member 3 can be engaged or abutted with the tail shaft in layers. When the first support member 2 is in the second position, the cover plate 300 can pass through the tail shaft hole after being flipped.

[0058] For example, see Figure 2 and Figure 3In this embodiment, the second support member 3 has a similar structure to the first support member 2, but the support base and operating rod 223 are omitted. The snap-fit ​​rod 221 in the second support member 3 snaps into the flange at the tail shaft hole on the tail shaft layer 100, and the connecting rod 222 in the second support member 3 is fixedly mounted on the cover plate body 1. It can be understood that by setting the second support member 3 fixedly mounted on the cover plate body 1, and the second support member 3 being spaced apart from the first support member 2, the snap-fit ​​effect between the cover plate body 1 and the flange of the tail shaft hole can be improved when the first support member 2 is in the first position, avoiding the snap-fit ​​failure caused by the loosening of the snap-fit ​​between the cover plate body 1 and the flange, thus preventing the cover plate 300 from falling due to the high drop. When the first support member 2 is in the second position, by flipping the cover plate body 1 so that the cover plate body 1 is kept vertical and the position where the first support member 2 is set is tangent to the tail shaft hole, the cover plate 300 can fall through the tail shaft hole.

[0059] More specifically, in some embodiments, the tail shaft layer 100 is also provided with positioning blind holes corresponding to the second support member 3. The second support member 3 can also be inserted into the positioning blind holes when the cover plate 300 blocks the tail shaft hole.

[0060] More specifically, see Figure 2 In this embodiment, there are two of each of the first support member 2 and the second support member 3, and the adjacent first support member 2 and the second support member 3 are spaced apart by an angle of 90 degrees along the circumferential direction of the cover plate body 1.

[0061] Furthermore, in this embodiment, the cover plate body 1 includes a cover plate support 11 and a mesh plate 12. The mesh plate 12 is disposed on the cover plate support 11, and the first support member 2 is movably disposed on the cover plate support 11. Specifically, in this embodiment, the adjusting seat 21 of the first support member 2 and the second support member 3 are both fixedly disposed on the cover plate support 11. The mesh plate 12 is a reinforcing rod that cross-fills the gaps in the cover plate support 11 to form a mesh. It can be understood that, with this arrangement, on the one hand, the weight of the cover plate body 1 can be reduced while ensuring the structural strength of the cover plate body 1 remains unchanged, making it easier to handle the cover plate body 1; on the other hand, the cover plate 300 has good light transmittance, improving the worker's experience during construction.

[0062] Furthermore, in some embodiments, a monitoring hole 13 is provided on the cover plate body 1.

[0063] Specifically, in this embodiment, no reinforcing rod is provided in the central gap inside the cover plate bracket 11 to form a monitoring hole 13. It is understood that the monitoring hole 13 facilitates the monitoring of the stacked multi-layer tail shaft plates, ensuring the perpendicularity of the tail shaft holes during the stacking process.

[0064] See Figure 4 This embodiment also provides a method for manufacturing a tail shaft assembly 1000, including the following steps:

[0065] The cover plate 300 described above is manufactured or selected according to the diameter of the tail shaft hole, ensuring that the cover plate body 1 can fall out of the tail shaft hole when the first support member 2 on the cover plate body 1 is in the second position.

[0066] The first support member 2 of the multiple cover plates 300 is adjusted to the first position and placed on the corresponding tail shaft layer 100.

[0067] Multiple tail shafts are layered and hoisted onto the jig in sequence according to their size and installation order, and then stacked.

[0068] The connecting parts 1001 in two adjacent tail shaft layers 100 are welded together, and the tail shaft outer plate 200 is welded to the outer side of the tail shaft layer 100 to form the tail shaft assembly 1000.

[0069] Rotate the operating lever 223 in the multiple first support members 2 so that the locking lever 221 in the multiple first support members 2 are separated from the corresponding flange and moved to the inside of the cover plate body 1. Flip the multiple cover plate bodies 1 so that the second support member 3 is vertically downward and remove all the cover plates 300.

[0070] It is understood that the manufacturing method of the stern shaft assembly 1000 provided in this embodiment, by using the aforementioned cover plate 300, not only facilitates sealing the stern shaft hole and prevents it from falling from a height, but also allows the cover plate 300 to be smoothly removed from the stern shaft assembly 1000 without damaging the stern shaft layer 100, effectively ensuring the verticality of the stern shaft hole. Moreover, the cover plate 300 can be reused when building the same type of ship, improving the economy of the cover plate 300.

[0071] Furthermore, when multiple tail shaft layers 100 are stacked, the positioning of the multiple tail shaft layers 100 is monitored through the monitoring hole 13.

[0072] Specifically, in this embodiment, a plumb line is lowered above the center of the monitoring hole 13 of the seventh cover plate body 1. By observing whether the center of the plumb line coincides with the center of the monitoring hole 13 on the other six cover plate bodies 1, and observing whether the plumb line is parallel to the inner surface of the flange on the seven cover plate bodies 1, the perpendicularity between the seven cover plate bodies 1 is determined, and the mass of the tail shaft assembly 1000 is monitored.

[0073] Of course, in other embodiments, the verticality of the tail shaft hole can also be monitored using a laser plumb bob, a total station, or the like.

[0074] The above embodiments merely illustrate the basic principles and characteristics of the present invention. The present invention is not limited to the above embodiments. Various changes and modifications can be made to the present invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A method for manufacturing a tail shaft assembly, wherein the tail shaft assembly (1000) includes a tail shaft outer plate (200) and multiple tail shaft layers (100), and each tail shaft layer (100) is provided with a tail shaft hole; The stern shaft outer plate (200) wraps the outer side of the stern shaft layered (100), characterized in that, Includes the following steps: A cover plate (300) is manufactured or selected according to the size of the tail shaft hole. The cover plate is used to seal the tail shaft hole opened on the tail shaft layer (100). The tail shaft hole on the tail shaft layer (100) is provided with a flange along the axial direction, including: The cover plate body (1) has a diameter smaller than the inner diameter of the tail shaft hole; A first support member (2) is movably disposed on the cover plate body (1). The first support member (2) has a first position and a second position. When the first support member (2) is located in the first position, it can engage or abut against the tail shaft layer (100) to prevent the cover plate (300) from passing through the tail shaft hole. When the first support member (2) is located in the second position, the cover plate (300) can pass through the tail shaft hole. The first support member (2) of the plurality of cover plates (300) is adjusted to a first position and snapped or abutted against the corresponding tail shaft layer (100); Multiple tail shafts are stacked in layers (100); Connect multiple tail shaft layers (100) and install the tail shaft outer plate (200) to form the tail shaft assembly (1000); Adjust all of the first support members (2) to the second position and remove them.

2. The method of claim 1, wherein It also includes a second support member (3), which is disposed on the cover plate body (1). The second support member (3) is spaced apart from the first support member (2) along the circumference of the cover plate body (1). The second support member (3) can be engaged or abutted with the tail shaft in layers. When the first support member (2) is in the second position, the cover plate (300) can be flipped over and pass through the tail shaft hole.

3. The method of claim 1, wherein The first support member (2) includes an adjustment seat (21) and an adjustment member (22). The adjustment seat (21) is disposed on the cover plate body (1), and the adjustment member (22) is movably disposed on the adjustment seat (21).

4. The method of claim 3, wherein The adjusting member (22) includes a snap-fit ​​rod (221) and a connecting rod (222); the connecting rod (222) passes through the adjusting seat (21), and one end of the connecting rod (222) is perpendicularly connected to the snap-fit ​​rod (221); when the first support member (2) is in the first position, the snap-fit ​​rod (221) snaps or abuts against the tail shaft layer (100); when the first support member (2) is in the second position, the snap-fit ​​rod (221) is parallel to the cover plate body (1) and abuts against the adjusting seat (21).

5. The method of claim 4, wherein The adjusting member (22) also includes an operating lever (223), which is connected at an angle to the other end of the connecting rod (222); when the first support member (2) is in the first position, the operating lever (223) abuts against the adjusting seat (21).

6. The method of claim 3, wherein The adjusting member (22) is hinged to the adjusting seat (21) and is rotatable in a plane perpendicular to the cover plate body (1). The first support member (2) also includes an elastic member, one end of which is connected to the adjusting member (22) and the other end of which is connected to the adjusting seat (21). The elastic member is configured to provide an elastic force that switches the first support member (2) to the second position.

7. A method of manufacturing a shafting assembly according to any one of claims 1 to 6, wherein, The cover plate body (1) includes a cover plate bracket (11) and a mesh plate (12). The mesh plate (12) is disposed on the cover plate bracket (11), and the first support member (2) is movably disposed on the cover plate bracket (11).

8. A method of manufacturing a shafting assembly according to any one of claims 1 to 6, characterised in that, The cover plate body (1) is provided with a monitoring hole (13).

9. The method of claim 1, wherein The cover plate body (1) is provided with a monitoring hole (13). When multiple tail shafts are stacked in layers (100), the multiple tail shafts in layers (100) are positioned and monitored through the monitoring hole (13).

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