Tail shaft fixing device for ship launching

Abstract

The utility model relates to a tail shaft fixing device for ship launching, which comprises a pair of connecting plates, the two connecting plates are respectively positioned on two sides of a flange plate of a tail shaft, and the two connecting plates are connected with the flange plate through a plurality of bolts; the upper end of the supporting plate mechanism is fixedly connected with the two connecting plates, and the lower end of the supporting plate mechanism is fixedly connected with the ship body. The utility model provides a tail shaft fixing device for ship launching, which has a simple structure, is convenient to install, can firmly fix a tail shaft when a ship is launched, and ensures the safety of ship launching.

Description

Technical Field

[0001] This utility model relates to the field of shipbuilding auxiliary equipment technology, specifically to a tail shaft fixing device for launching ships. Background Technology

[0002] After the main structure of a ship is completed on the inclined slipway, it needs to be moved to the dock for outfitting. This movement (technically termed launching) involves the ship sliding or rolling into the water using its own weight on the inclined slipway. Because ships range in weight from hundreds to thousands of tons, they have significant inertia when in motion. During launching, the water flow causes the propeller to rotate, which can damage the shafting. Therefore, the stern shaft must be fixed and not rotate with the propeller during launching.

[0003] The current industry practice is to use a hand chain hoist to externally wind and fix the propeller blades, which is neither reliable nor safe, and also makes disassembly difficult. Utility Model Content

[0004] The technical problem to be solved by this utility model is to overcome the shortcomings of the prior art and provide a tail shaft fixing device for launching ships, thereby solving the technical problems of unstable tail shaft fixing and difficult disassembly during ship launching.

[0005] The technical solution adopted by this utility model to solve its technical problem is:

[0006] A tail shaft fixing device for launching a ship is provided, including:

[0007] A pair of connecting plates, located on both sides of the flange plate of the tail shaft, are connected to the flange plate by multiple bolts;

[0008] The support plate mechanism has its upper end fixedly connected to two connecting plates and its lower end fixedly connected to the hull.

[0009] Furthermore, the support plate mechanism includes

[0010] A pair of vertical support plates, the upper ends of which are fixedly connected to two connecting plates respectively, and the lower ends of which are fixedly connected to the hull;

[0011] A pair of diagonal bracing plates, with the upper ends of the two diagonal bracing plates fixedly connected to the two vertical bracing plates respectively, and the lower ends of the two diagonal bracing plates fixedly connected to the hull respectively.

[0012] Furthermore, the connecting plate is crescent-shaped.

[0013] Furthermore, both the vertical support plate and the diagonal support plate are made of channel steel.

[0014] Furthermore, the connecting plate and the flange plate are fastened together by three bolts.

[0015] The beneficial effects of this utility model are:

[0016] This utility model provides a tail shaft fixing device for launching ships. It has a simple structure and is easy to install. It can reliably fix the tail shaft when launching a ship, ensuring the safety of launching the ship. Attached Figure Description

[0017] The present invention will be further described below with reference to the accompanying drawings.

[0018] Figure 1 This is a front view of the stern shaft fixing device for launching ships according to this utility model;

[0019] Figure 2 This is a side view of the stern shaft fixing device for launching ships according to this utility model;

[0020] Among them, 1 is the tail shaft, and 11 is the flange plate;

[0021] 2. Connecting plate, 3. Vertical support plate, 4. Diagonal support plate, 5. Bolts. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0023] This application provides a stern shaft fixing device for ship launching, which will be described in detail below. It should be noted that the order of description of the following embodiments is not intended to limit the preferred order of the embodiments of this application. Furthermore, in the following embodiments, the descriptions of each embodiment have their own emphasis; parts not described in detail in a certain embodiment can be referred to in the relevant descriptions of other embodiments.

[0024] To address the technical problems of insecure stern shaft fixing and difficult disassembly in existing technologies during ship launching, one embodiment of this application provides a stern shaft fixing device for ship launching. This is described in detail below.

[0025] like Figure 1 and Figure 2 As shown, a stern shaft fixing device for launching a ship includes...

[0026] A pair of connecting plates 2 are located on both sides of the flange plate 11 of the tail shaft 1, and the two connecting plates 2 are connected to the flange plate 11 by multiple bolts 5.

[0027] The upper end of the support plate mechanism is fixedly connected to two connecting plates 2, and the lower end is fixedly connected to the hull.

[0028] Specifically, as an optional implementation method in this embodiment, such as Figure 1 and Figure 2 As shown, the support plate mechanism includes

[0029] A pair of vertical support plates 3, the upper ends of the two vertical support plates 3 are respectively fixedly connected to two connecting plates 2, and the lower ends of the vertical support plates 3 are fixedly connected to the hull;

[0030] A pair of diagonal bracing plates 4, the upper ends of the two diagonal bracing plates 4 are fixedly connected to the two vertical bracing plates 3 respectively, and the lower ends of the two diagonal bracing plates 4 are fixedly connected to the hull respectively.

[0031] Specifically, as an optional implementation in this embodiment, the connecting plate 2 is crescent-shaped. One side of the crescent-shaped connecting plate 2 has an arc-shaped structure, and bolt holes are opened on one side of the arc-shaped structure. The bolts 5 pass through both connecting plates 2 and the flange plate 11 of the tail shaft 1, thereby fixing the two connecting plates 2 to the flange plate 11.

[0032] Specifically, in this embodiment, the connecting plate 2 and the flange plate 11 are fastened together by three bolts 5.

[0033] Specifically, as an optional implementation in this embodiment, both the vertical support plate 3 and the diagonal support plate 4 are made of channel steel.

[0034] Working principle of the stern shaft fixing device for ship launching:

[0035] Before launching the vessel, the stern shaft 1 is secured to ensure that it and the propeller do not rotate during launching, thus preventing the propeller from generating additional thrust and avoiding damage to the shafting system during the normal sliding launching process. Before launching, the stern shaft 1 is secured using a launching stern shaft fixing device. Specifically, two connecting plates 2 are first connected to both sides of the flange plate 11 with bolts 5. Then, vertical support plates 3 and diagonal support plates 4 are used. The upper end of the vertical support plate 3 is welded to the connecting plate 2, and the lower end is welded to the hull. The upper end of the diagonal support plate 4 is welded to the vertical support plate 3, and the lower end is welded to the hull. The two diagonal support plates 4 form a V-shaped support structure on the hull, achieving a secure positioning of the two stern shafts 1. During launching, even if the propeller is impacted by the water flow, the propeller and stern shaft 1 will not rotate, ensuring the reliability of the launching.

[0036] All the devices (parts whose specific structures are not specified) selected in this application are general standard parts or parts known to those skilled in the art. Their structures and principles can be learned by those skilled in the art through technical manuals or conventional experimental methods.

[0037] In the description of the embodiments of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" 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 based on the specific circumstances.

[0038] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and 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, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0039] In the several embodiments provided in this application, it should be understood that the disclosed systems, apparatuses, and methods can be implemented in other ways. The apparatus embodiments described above are merely illustrative. For example, the division of units is only a logical functional division, and in actual implementation, there may be other division methods. Furthermore, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. Additionally, the shown or discussed mutual couplings, direct couplings, or communication connections may be through some communication interfaces; indirect couplings or communication connections between devices or units may be electrical, mechanical, or other forms.

[0040] The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the units can be selected to achieve the purpose of this embodiment according to actual needs.

[0041] In addition, in the various embodiments of this utility model, each functional unit can be integrated into one processing unit, or each unit can exist physically separately, or two or more units can be integrated into one unit.

[0042] Based on the above-described preferred embodiments of this utility model, and through the foregoing description, those skilled in the art can make various changes and modifications without departing from the technical concept of this utility model. The technical scope of this utility model is not limited to the contents of the specification, but must be determined according to the scope of the claims.

Claims

1. A stern shaft fixing device for launching a ship, characterized in that, include A pair of connecting plates (2) are located on both sides of the flange plate (11) of the tail shaft (1), and the two connecting plates (2) are connected to the flange plate (11) by multiple bolts. The upper end of the support plate mechanism is fixedly connected to two connecting plates (2), and the lower end is fixedly connected to the hull.

2. The stern shaft fixing device for launching a ship according to claim 1, characterized in that, The support plate mechanism includes A pair of vertical support plates (3), the upper ends of the two vertical support plates (3) are fixedly connected to two connecting plates (2) respectively, and the lower ends of the vertical support plates (3) are fixedly connected to the hull; A pair of diagonal bracing plates (4), the upper ends of the two diagonal bracing plates (4) are fixedly connected to the two vertical bracing plates (3) respectively, and the lower ends of the two diagonal bracing plates (4) are fixedly connected to the hull respectively.

3. The stern shaft fixing device for launching a ship according to claim 1, characterized in that, The connecting plate (2) is crescent-shaped.

4. A stern shaft fixing device for launching a ship according to claim 2, characterized in that, Both the vertical support plate (3) and the diagonal support plate (4) are made of channel steel.

5. A stern shaft fixing device for launching a ship according to claim 1, characterized in that, The connecting plate (2) and the flange plate (11) are fastened together by three bolts.

Images