Tail shaft of emergency engineering ship
By designing the mounting slot and mounting components, the problems of complex and loose tail shaft installation were solved, enabling convenient disassembly and assembly as well as stable installation, and enhancing the sealing and stability of the tail shaft.
Patent Information
- Application Number
- CN202423290576.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-31
- Publication Date
- 2025-12-09
- Estimated Expiration
- 2034-12-31
AI Technical Summary
The existing tail shaft requires a lot of parts to install and the mounting points are prone to loosening, affecting normal use.
An installation assembly was designed, comprising an installation groove, an installation plate, a swivel, bolts, a slot, a plug, and a through groove. The tail shaft can be easily disassembled and assembled through the meshing of the swivel and the rotating gear, and the installation stability is increased through the cooperation of the spring shaft and the fixing rod.
It enables convenient disassembly and assembly of the tail shaft and improves the sealing and stability of the installation point, reducing the risk of loosening.
Smart Images

Figure CN223644969U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of tail shaft technology, and in particular to a tail shaft for an emergency engineering vessel. Background Technology
[0002] The stern shaft, also known as the tail shaft, is the last section of the shaft system. The bow flange is connected to the intermediate shaft flange with tight-fitting bolts, and the stern end is conical in shape to mount the propeller. The stern shaft is forged from high-quality carbon steel. An emergency engineering vessel is a ship specifically designed to respond to sudden events and emergencies, and has a variety of emergency rescue functions.
[0003] The existing tail shaft requires a lot of accessories for installation, and gaps are easily created at the installation point after installation. Over time, the installation point of the tail shaft is prone to loosening, which will affect the normal use of the tail shaft. Utility Model Content
[0004] The purpose of this utility model is to provide a tail shaft for an emergency engineering vessel, in order to solve the problems mentioned in the background art, where existing tail shafts require a large number of accessories for installation, and gaps are easily formed at the installation point after installation. Over time, the installation point of the tail shaft is prone to loosening, thus affecting the normal use of the tail shaft.
[0005] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:
[0006] This utility model relates to a stern shaft for an emergency engineering vessel, comprising:
[0007] Main component: The main component includes the tail shaft body and the mounting slot;
[0008] The mounting slot is located inside the tail shaft body;
[0009] Mounting components: The mounting components include a mounting plate, a swivel, bolts, a slot, a plug, and a through slot;
[0010] The mounting plate is installed at one end of the tail shaft body, the swivel is rotatably connected to the outside of the mounting plate, the bolt is threadedly connected to the outer end of the swivel, the slot is opened on the inner side wall of the mounting groove, the plug is fixedly connected to the center of the bottom end of the mounting plate, and the through groove is opened on the outside of the plug.
[0011] Furthermore, the mounting assembly also includes a movable rod, a clamping plate, a guide plate, a rotating gear, and a threaded groove;
[0012] The movable rod is rotatably connected to the inner bottom wall of the plug, the clamp is fixedly connected to the top of the movable rod, the rotating gear is rotatably connected to the inner center of the mounting plate, the guide plate is fixedly connected to the bottom end of the rotating gear, and the threaded groove is opened on one side of the top of the tail shaft body.
[0013] Furthermore, the guide disc has multiple sets of guide grooves inside, and the movable rod passes through the guide grooves.
[0014] Furthermore, the clamping plate and the through groove are arranged on the same central axis, and the slot and the through groove are arranged on the same central axis.
[0015] Furthermore, the dimensions of the threaded groove are adapted to the dimensions of the bolt, and the threaded groove and the bolt are located on the same central axis.
[0016] Furthermore, it also includes auxiliary components;
[0017] The auxiliary components include a movable groove, a spring shaft, and an auxiliary plate;
[0018] The movable groove is formed on both sides of the inner wall of the mounting groove, the spring shaft is rotatably connected to the inner side wall of the movable groove, and the auxiliary plate is fixedly connected to one end of the spring shaft.
[0019] Furthermore, the auxiliary component also includes a fixing rod;
[0020] The fixing rod is fixedly connected to both ends of the bottom of the mounting plate, and one end of the fixing rod and the spring shaft are set on the same central axis.
[0021] Compared with existing technologies, the advantages of this utility model are:
[0022] This utility model, by setting up an installation component, through the meshing cooperation between the rotating ring and the rotating gear, can drive multiple sets of clamping plates to flip and insert into the inside of the slot through the through groove while rotating the rotating ring. This makes it convenient for workers to disassemble and assemble the tail shaft body, and at the same time increases the sealing of the installation point.
[0023] Based on the aforementioned beneficial effects, an auxiliary component is provided. Through the auxiliary cooperation between the spring shaft and the fixing rod, the spring shaft can rotate while driving the auxiliary plate to flip, which can assist the staff in the stable installation of the tail shaft and increase the stability of the installation. Attached Figure Description
[0024] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0025] Figure 1 This is an axonometric view of the present invention;
[0026] Figure 2 This is a cross-sectional view of the present invention;
[0027] Figure 3 This is an exploded view of the present invention;
[0028] Figure 4 This is an exploded view of the present invention.
[0029] The attached diagram lists the components represented by each number as follows:
[0030] 11. Tail shaft body; 12. Mounting slot;
[0031] 21. Mounting plate; 22. Rotary ring; 23. Bolt; 24. Slot; 25. Plug; 26. Through slot; 27. Movable rod; 28. Clamping plate; 29. Guide plate; 210. Rotating gear; 211. Threaded groove;
[0032] 31. Movable groove; 32. Spring shaft; 33. Auxiliary plate; 34. Fixing rod. Detailed Implementation
[0033] To make the above-mentioned objectives, 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.
[0034] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.
[0035] To make the objectives, technical solutions, and advantages of this utility model clearer, the embodiments of this utility model will be described in further detail below with reference to the accompanying drawings.
[0036] Please see Figure 1-4 As shown, this embodiment is a tail shaft of an emergency engineering vessel. The main components include a tail shaft body 11 and a mounting groove 12.
[0037] The mounting slot 12 is located inside the tail shaft body 11;
[0038] Mounting slot 12 is used for mounting parts;
[0039] All of the above parts are existing technologies;
[0040] Mounting components: The mounting components include mounting plate 21, swivel ring 22, bolt 23, slot 24, plug 25 and through slot 26;
[0041] Mounting disc 21 is mounted on one end of tail shaft body 11, rotating ring 22 is rotatably connected to the outside of mounting disc 21, bolt 23 is threaded to the outer end of rotating ring 22, slot 24 is formed on the inner side wall of mounting groove 12, plug 25 is fixedly connected to the bottom center of mounting disc 21, and through groove 26 is formed on the outside of plug 25.
[0042] The mounting assembly also includes a movable rod 27, a clamping plate 28, a guide plate 29, a rotating gear 210, and a threaded groove 211;
[0043] The movable rod 27 is rotatably connected to the inner bottom wall of the plug 25, the clamping plate 28 is fixedly connected to the top of the movable rod 27, the rotating gear 210 is rotatably connected to the inner center of the mounting plate 21, the guide plate 29 is fixedly connected to the bottom end of the rotating gear 210, and the threaded groove 211 is opened on one side of the top of the tail shaft body 11.
[0044] Mounting plate 21 is used to provide rotation space for rotating gear 210, plug 25 is used to open through slot 26, through slot 26 is used to provide extension space for clamp 28, guide plate 29 is used to open guide slot, guide slot is used to provide rotation space for movable rod 27.
[0045] Through the meshing between the rotating ring 22 and the rotating gear 210, multiple sets of clamping plates 28 can be rotated and inserted into the slot 24 through the through groove 26 while the rotating ring 22 is rotated.
[0046] Working principle: When the staff installs the parts inside the tail shaft;
[0047] First, insert the plug 25, which is fixedly connected to one end of the mounting plate 21, into the inside of the mounting groove 12, and at the same time rotate the rotating ring 22, which is rotated to the top of the mounting plate 21, clockwise. As the rotating ring 22 rotates, it drives the rotating gear 210 to rotate, and as the rotating gear 210 rotates, it drives the guide plate 29, which is fixedly connected to one end, to rotate inside the plug 25.
[0048] Next, the movable rod 27 can be rotated under the influence of the guide groove. During the rotation of the movable rod 27, the clamp 28 fixedly connected at one end can be flipped over. During the flipping process, the clamp 28 flips out through the through groove 26 and is engaged in the inside of the slot 24. Then, the bolt 23 and the threaded groove 211 are connected by threads in sequence to connect and fix the rotating ring 22 and the tail shaft body 11.
[0049] This step allows staff to easily disassemble and reassemble the interior of the tail shaft body 11, while also increasing the sealing of the installation area.
[0050] Please see Figure 1-4As shown, this embodiment, based on the above embodiment, also includes:
[0051] The auxiliary components include a movable groove 31, a spring shaft 32, and an auxiliary plate 33;
[0052] The movable groove 31 is formed on both sides of the inner wall of the mounting groove 12, the spring shaft 32 is rotatably connected to the inner side wall of the movable groove 31, and the auxiliary plate 33 is fixedly connected to one end of the spring shaft 32.
[0053] The auxiliary components also include a fixing rod 34;
[0054] The fixing rod 34 is fixedly connected to both ends of the bottom of the mounting plate 21, and one end of the fixing rod 34 and the spring shaft 32 are set on the same central axis;
[0055] The movable groove 31 is used to provide space for the auxiliary plate 33 to flip, and the spring shaft 32 and the fixing rod 34 are arranged on the same central axis;
[0056] With the auxiliary cooperation between the spring shaft 32 and the fixed rod 34, the spring shaft 32 can rotate while driving the auxiliary plate 33 to flip.
[0057] Working principle: After the staff installs the tail shaft;
[0058] First, after installing the mounting plate 21 and the tail shaft body 11, the fixing rods 34, which are fixedly connected to both ends of the inner side of the mounting plate 21, are inserted into the interior of the mounting groove 12, and one end of the fixing rods 34 presses against the spring shaft 32.
[0059] Next, as the spring shaft 32 rotates, it causes the auxiliary plate 33, which is fixedly connected at one end, to flip, so that the auxiliary plate 33 fits against the outside of the fixed rod 34.
[0060] This step helps workers to securely install the tail shaft, increasing the stability of the installation.
[0061] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; 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; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0062] Finally, it should be noted that the above are merely preferred embodiments of this utility model and are not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.
Claims
1. A tail shaft for an emergency engineering vessel, characterized in that, include: Main component: The main component includes a tail shaft body (11) and a mounting groove (12). The mounting slot (12) is formed inside the tail shaft body (11); Mounting components: The mounting components include a mounting plate (21), a swivel (22), a bolt (23), a slot (24), a plug (25), and a through slot (26); The mounting plate (21) is installed at one end of the tail shaft body (11), the swivel ring (22) is rotatably connected to the outside of the mounting plate (21), the bolt (23) is threaded to the outer end of the swivel ring (22), the slot (24) is opened on the inner side wall of the mounting groove (12), the plug (25) is fixedly connected to the bottom center of the mounting plate (21), and the through groove (26) is opened on the outside of the plug (25).
2. The stern shaft of an emergency engineering vessel according to claim 1, characterized in that, The mounting assembly also includes a movable rod (27), a clamping plate (28), a guide plate (29), a rotating gear (210), and a threaded groove (211). The movable rod (27) is rotatably connected to the inner bottom wall of the plug (25), the clamp (28) is fixedly connected to the top of the movable rod (27), the rotating gear (210) is rotatably connected to the inner center of the mounting plate (21), the guide plate (29) is fixedly connected to the bottom end of the rotating gear (210), and the threaded groove (211) is opened on one side of the top of the tail shaft body (11).
3. The stern shaft of an emergency engineering vessel according to claim 2, characterized in that, The guide plate (29) has multiple guide grooves inside, and the movable rod (27) passes through the guide grooves.
4. The stern shaft of an emergency engineering vessel according to claim 2, characterized in that, The clamping plate (28) and the through groove (26) are located on the same central axis, and the slot (24) and the through groove (26) are located on the same central axis.
5. The stern shaft of an emergency engineering vessel according to claim 2, characterized in that, The dimensions of the threaded groove (211) and the bolt (23) are matched, and the threaded groove (211) and the bolt (23) are located on the same central axis.
6. The stern shaft of an emergency engineering vessel according to claim 1, characterized in that, It also includes auxiliary components; The auxiliary components include a movable groove (31), a spring shaft (32), and an auxiliary plate (33). The movable groove (31) is opened on both sides of the inner wall of the mounting groove (12), the spring shaft (32) is rotatably connected to the inner side wall of the movable groove (31), and the auxiliary plate (33) is fixedly connected to one end of the spring shaft (32).
7. The stern shaft of an emergency engineering vessel according to claim 6, characterized in that, The auxiliary component also includes a fixing rod (34). The fixing rod (34) is fixedly connected to both ends of the bottom of the mounting plate (21), and one end of the fixing rod (34) and the spring shaft (32) are set on the same central axis.