Marine shafting forge piece
By designing detachable protective covers and elastic components on marine shafting forgings, the problems of damage and vibration wear at flange connection points are solved, achieving effective protection and buffering of the flanges.
Patent Information
- Application Number
- CN202520315162.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-26
- Publication Date
- 2026-02-17
- Estimated Expiration
- 2035-02-26
AI Technical Summary
Existing marine shafting forgings suffer damage to flange connections during navigation operations due to factors such as seawater droplets and collisions during cargo loading and unloading, and vibrations cause equipment wear.
A marine shafting forging with a protective cover was designed. The protective cover consists of a detachable semi-protective cover, which is fixed to the outside of the flange by elastic and fixing components. The protective cover is equipped with an arc plate and springs inside to buffer vibration and prevent collision and wear.
It effectively protects the flange connection parts from damage and uses elastic components to buffer vibration, extending the service life of the equipment.
Smart Images
Figure CN223923591U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of shaft forging technology, specifically to a marine shaft forging. Background Technology
[0002] Marine shafting forgings refer to forged parts used in marine power transmission systems, mainly including intermediate shafts, propeller shafts, thrust shafts, etc. These forgings play a vital role in shipbuilding, ensuring that ships can operate efficiently and stably.
[0003] Existing shaft forgings are typically connected to other components via flanges at both ends. However, during maritime operations, factors such as seawater spray and collisions during cargo loading and unloading can damage the connection points between flanges, affecting equipment operation. Therefore, we propose a marine shaft forging. Utility Model Content
[0004] The purpose of this utility model is to solve the above-mentioned shortcomings and provide a marine shafting forging.
[0005] To achieve the above objectives, this utility model provides a marine shafting forging, including an intermediate shaft with flanges at both ends. A protective cover is detachably fitted over the flanges. Elastic components are provided on the inner diameters of both sides of the protective cover. Each elastic component includes two sets of arc-shaped plates respectively disposed on the inner diameters of both sides of the protective cover. A plurality of first springs are fixedly disposed between the arc-shaped plates and the inner diameters of both sides of the protective cover.
[0006] As a further improvement to this technical solution, the protective cover includes a first half-protective cover, and a second half-protective cover is provided on one side of the first half-protective cover. The protective cover is composed of the first half-protective cover and the second half-protective cover, and the bottoms of the first half-protective cover and the second half-protective cover are rotatably connected by a hinge.
[0007] As a further improvement to this technical solution, a fixing component is provided between the first half-protective cover and the second half-protective cover. The fixing component includes two fixing plates that are respectively fixedly installed at the top connection of the first half-protective cover and the second half-protective cover. Each of the two fixing plates has an L-shaped limiting hole, and an I-shaped limiting rod is slidably provided in the L-shaped limiting hole.
[0008] As a further improvement to this technical solution, a telescopic column is fixed between the fixing plate at the top of the second half of the protective cover and the limiting rod. The telescopic column is located at the entrance of the L-shaped limiting hole, and a second spring is provided on the surface of the telescopic column.
[0009] As a further improvement to this technical solution, the inner diameter of the protective cover is larger than the outer diameter of the flange, ensuring that the protective cover can be successfully installed on the outside of the flange to achieve the protective function of the flange.
[0010] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0011] In this marine shafting forging, a protective cover is installed outside the flange to protect the flange and prevent damage to the connection between the flanges caused by factors such as seawater droplets and collisions during cargo loading and unloading. At the same time, by setting a first spring, the vibration of the intermediate shaft caused by various reasons during operation is buffered, so that the protective cover can better adapt to such vibration and avoid wear or damage to the protective cover due to frequent vibration contact. Attached Figure Description
[0012] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0013] Figure 2 This is a schematic diagram of the exploded structure of this utility model;
[0014] Figure 3 This is a schematic diagram of the exploded structure of the protective cover of this utility model;
[0015] Figure 4 This is a schematic cross-sectional view of the protective cover of this utility model;
[0016] Figure 5 For the present utility model Figure 4 Enlarged structural diagram at point A in the middle.
[0017] The meanings of the labels in the diagram are as follows:
[0018] 1. Intermediate shaft; 11. Flange;
[0019] 2. Protective cover; 21. Elastic component; 211. Arc plate; 212. First spring; 22. First half-protective cover; 23. Second half-protective cover; 24. Fixing component; 241. Fixing plate; 242. L-shaped limiting hole; 243. Limiting rod; 244. Telescopic column; 245. Second spring. Detailed Implementation
[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0021] Please see Figures 1-5As shown, this embodiment provides a marine shafting forging, including an intermediate shaft 1. Flanges 11 are provided at both ends of the intermediate shaft 1. A protective cover 2 is detachably sleeved on the outside of the flanges 11. Elastic components 21 are provided on the inner diameters of both sides of the protective cover 2. The elastic components 21 include two sets of arc-shaped plates 211 respectively provided on the inner diameters of both sides of the protective cover 2. A plurality of first springs 212 are fixedly provided between the arc-shaped plates 211 and the inner diameters of both sides of the protective cover 2.
[0022] The protective cover 2 is installed outside the flange 11 to protect the flange 11, and the arc plate 211 and the first spring 212 are used to buffer the vibration of the intermediate shaft 1 caused by various reasons during operation.
[0023] The improvement of this embodiment is that the protective cover 2 is installed on the outside of the flange 11 to protect the flange 11 and prevent damage to the connection between the flanges 11 caused by factors such as seawater droplets and collisions during cargo loading and unloading. At the same time, by setting the first spring 212, the vibration of the intermediate shaft 1 caused by various reasons during operation is buffered, so that the protective cover 2 can better adapt to such vibration and avoid wear or damage to the protective cover 2 due to frequent vibration contact.
[0024] To facilitate the mounting of the protective cover 2 on the flange 11, therefore, as Figures 1-4 As shown, the protective cover 2 includes a first half-protective cover 22, and a second half-protective cover 23 is provided on one side of the first half-protective cover 22. The protective cover 2 is composed of the first half-protective cover 22 and the second half-protective cover 23, and the bottom of the first half-protective cover 22 and the second half-protective cover 23 are rotatably connected by a hinge. When the protective cover 2 needs to be installed on the outside of the flange 11, the first half-protective cover 22 and the second half-protective cover 23 are closed and placed on the outside of the flange 11. At this time, the inner wall of the arc plate 211 is attached to the outer wall of the intermediate shaft 1, so that the flange 11 is located inside the protective cover 2, preventing damage to the connection between the flanges 11 caused by factors such as seawater droplets and collisions during cargo loading and unloading. At the same time, by setting the first spring 212, the vibration of the intermediate shaft 1 caused by various reasons during operation is buffered, so that the protective cover 2 can better adapt to such vibration and avoid wear or damage to the protective cover 2 due to frequent vibration contact.
[0025] To facilitate the installation and removal of the first half-protective cover 22 and the second half-protective cover 23, therefore, as Figures 1-5As shown, a fixing assembly 24 is provided between the first half-protective cover 22 and the second half-protective cover 23. The fixing assembly 24 includes two fixing plates 241, which are respectively fixedly installed at the top connection of the first half-protective cover 22 and the second half-protective cover 23. Each fixing plate 241 has an L-shaped limiting hole 242. An I-shaped limiting rod 243 is slidably disposed within the L-shaped limiting hole 242. When it is necessary to fix the first half-protective cover 22 and the second half-protective cover 23, the limiting rod 243 moves into the L-shaped limiting hole 242, thus fixing the first half-protective cover 22 and the second half-protective cover 23. The semi-protective cover 23 is fixed so that the protective cover 2 is fixedly installed on the outside of the flange 11 to protect the flange 11. When the flange 11 needs to be maintained, the limiting rod 243 is moved to the entrance of the corner of the L-shaped limiting hole 242 to release the limiting rod 243 from the L-shaped limiting hole 242. Then the first semi-protective cover 22 and the second semi-protective cover 23 are opened to maintain the flange 11. This facilitates the installation and removal of the first semi-protective cover 22 and the second semi-protective cover 23, shortens the installation and removal time, and makes it convenient for staff to maintain the flange 11.
[0026] In order to install and fix the L-shaped limiting hole 242, and to make the movement of the limiting rod 243 more convenient, therefore, as Figures 1-5 As shown, a telescopic column 244 is fixed between the fixing plate 241 at the top of the second half-protective cover 23 and the limiting rod 243. The telescopic column 244 is located at the entrance of the L-shaped limiting hole 242. A second spring 245 is provided on the surface of the telescopic column 244. When the first half-protective cover 22 and the second half-protective cover 23 need to be opened, the limiting rod 243 is pushed. The limiting rod 243 squeezes the telescopic column 244 and the second spring 245 to move towards the exit of the corner of the L-shaped limiting hole 242, releasing the limitation of the limiting rod 243 by the L-shaped limiting hole 242, so that the first half-protective cover 22 and the second half-protective cover 23 can be opened. When released, the second spring 245 pushes the limiting rod 243 back to its original position, which facilitates the control of the movement of the limiting rod 243 and is beneficial to the subsequent installation and disassembly of the first half-protective cover 22 and the second half-protective cover 23.
[0027] like Figures 1-4 As shown, the inner diameter of the protective cover 2 is larger than the outer diameter of the flange 11, ensuring that the protective cover 2 can be successfully installed on the outside of the flange 11 to achieve the protective function of the flange 11.
[0028] In practical use, the marine shafting forging of this utility model pushes the limiting rod 243, which moves to the outlet of the L-shaped limiting hole 242 by compressing the second spring 245 and the telescopic column 244. This causes the first half-protective cover 22 and the second half-protective cover 23 to close and cover the outside of the flange 11. When released, the second spring 245 returns to its original shape, thereby pushing the I-shaped limiting rod 243 into the L-shaped limiting hole 242, fixing the first half-protective cover 22 and the second half-protective cover 23. This ensures that the protective covers 2 are fixedly covered on the outside of the flange 11, preventing seawater droplets, collisions during cargo loading and unloading, and other factors from damaging the flange 11. Damage to the connection parts is caused. At the same time, by setting the first spring 212, the vibration of the intermediate shaft 1 caused by various reasons during operation is buffered, so that the protective cover 2 can better adapt to this vibration and avoid wear or damage to the protective cover 2 due to frequent vibration contact. When the flange 11 needs to be maintained, the limit rod 243 is pushed again. The limit rod 243 squeezes the telescopic column 244 and the second spring 245 to move to the outlet of the corner of the L-shaped limit hole 242, releasing the limit of the limit rod 243 by the L-shaped limit hole 242, so that the first half protective cover 22 and the second half protective cover 23 can be opened to maintain the flange 11.
[0029] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.
Claims
1. A marine shafting forging, comprising an intermediate shaft (1), characterized in that: The intermediate shaft (1) is provided with flanges (11) at both ends. A protective cover (2) is detachably fitted on the outside of the flanges (11). An elastic component (21) is provided on the inner diameter of both sides of the protective cover (2). The elastic component (21) includes two sets of arc plates (211) respectively provided on the inner diameter of both sides of the protective cover (2). A plurality of first springs (212) are fixedly provided between the arc plates (211) and the inner diameter of both sides of the protective cover (2). Among them, the protective cover (2) is placed outside the flange (11) to protect the flange (11), and the arc plate (211) and the first spring (212) are used to buffer the vibration of the intermediate shaft (1) caused by various reasons during operation.
2. The marine shafting forging according to claim 1, characterized in that: The protective cover (2) includes a first half-protective cover (22), and a second half-protective cover (23) is provided on one side of the first half-protective cover (22). The protective cover (2) is composed of the first half-protective cover (22) and the second half-protective cover (23), and the bottom of the first half-protective cover (22) and the second half-protective cover (23) are rotatably connected by a hinge.
3. The marine shafting forging according to claim 2, characterized in that: A fixing component (24) is provided between the first half-protective cover (22) and the second half-protective cover (23). The fixing component (24) includes two fixing plates (241) that are fixedly installed at the top connection of the first half-protective cover (22) and the second half-protective cover (23). L-shaped limiting holes (242) are respectively opened on the two fixing plates (241), and I-shaped limiting rods (243) are slidably provided in the L-shaped limiting holes (242).
4. The marine shafting forging according to claim 3, characterized in that: A telescopic column (244) is fixed between the fixing plate (241) at the top of the second half protective cover (23) and the limiting rod (243). The telescopic column (244) is located at the entrance of the L-shaped limiting hole (242), and a second spring (245) is provided on the surface of the telescopic column (244).
5. The marine shafting forging according to claim 1, characterized in that: The inner diameter of the protective cover (2) is larger than the outer diameter of the flange (11), ensuring that the protective cover (2) can be successfully installed on the outside of the flange (11) to achieve the protective function of the flange (11).