An electromechanical stern shaft front support fixture

Abstract

This utility model relates to the field of marine technology, specifically a fore-and-aft support fixture for an electromechanical stern shaft. It includes a fixing plate, with a base plate connected to one side of its lower portion. A support plate is bolted to the upper end of the base plate and secured with nuts. The support plate has a circular arc groove in its center, and a triangular reinforcing plate is connected to the lower end of the base plate. Compared with existing technologies, this fixture has a simple structure, is easy to manufacture, and is convenient to assemble and disassemble. It meets the requirements for temporary support, improves construction safety and quality, greatly reduces the risk of damage to the stern shaft, and increases construction efficiency.

Description

Technical Field

[0001] This utility model relates to the field of shipbuilding technology, specifically to an electromechanical stern shaft front support fixture. Background Technology

[0002] The disassembly and assembly of a ship's stern shaft typically involves using a hoist in conjunction with slings, wire ropes, and other lifting equipment to pull the stern shaft out of the stern shaft tube. Usually, the stern shaft tube contains one fore and one aft bearing. During construction, the stern shaft should not come into contact with the lubrication oil pipes, probe tubes, or their clamps inside the stern shaft tube. However, some stern shaft tube designs lack a fore stern shaft bearing. This can lead to the stern shaft losing support and sinking when it is disengaged from the aft stern bearing, potentially coming into contact with the lubrication oil pipes, temperature probe tubes, and their clamps. This can result in scratches, particularly on the stern shaft bearing retainer and the propeller blade mounting cone, potentially requiring the stern shaft to be removed from the engine room for repair, or even worse, requiring replacement. Therefore, for ships without a fore stern shaft bearing, designing an electromechanical stern shaft fore support fixture to temporarily add forward support during shaft removal is a necessary measure to prevent stern shaft damage. Summary of the Invention

[0003] To overcome the shortcomings of the prior art, this utility model provides an electromechanical stern shaft front support fixture.

[0004] To achieve the above objectives, an electromechanical stern shaft front support fixture is designed, including a fixing plate. A base plate is connected to the lower side of the fixing plate. A support plate is connected to the upper end of the base plate by bolts and fastened with nuts. An arc groove is provided in the center of the support plate. A triangular reinforcing plate is connected to the lower end of the base plate.

[0005] The tray and the fixing plate are arranged in parallel.

[0006] The tray has extensions on both sides, and bolts pass through the extensions to connect to the base plate.

[0007] One end of the reinforcing plate abuts against the base plate, and the other end of the reinforcing plate abuts against the fixing plate.

[0008] The fixing plate is provided with bolt holes evenly distributed, and the number of bolt holes is four or more.

[0009] The fixing plate is semi-circular in shape.

[0010] The circular groove is coated with polytetrafluoroethylene.

[0011] Compared with the prior art, this utility model has a simple structure, is easy to process, and is convenient to assemble and disassemble. It meets the requirements of temporary support, improves construction safety and quality, greatly reduces the risk of damage to the stern shaft, and improves construction efficiency. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of this utility model.

[0013] Figure 2 This is a side view of the present invention.

[0014] Figure 3 This is a schematic diagram of the structure of the present invention with the tray removed.

[0015] Figure 4 This is a schematic diagram of the structure of the tray of this utility model.

[0016] Figure 5 This is a schematic diagram of the structure of this utility model in use. Detailed Implementation

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

[0018] like Figures 1 to 4 As shown, the lower side of the fixed plate 1 is connected to the base plate 2, the upper end of the base plate 2 is connected to the support plate 4 by bolts 3 and fastened by nuts 5, the support plate 4 has an arc groove 6 in the center, and the lower end of the base plate 2 is connected to a triangular reinforcing plate 7.

[0019] The support plate 4 and the fixing plate 1 are arranged in parallel. The support plate 4 has extensions 4-1 on both sides, and the bolts 3 pass through the extensions 4-1 to connect with the base plate 2.

[0020] One end of the reinforcing plate 7 abuts against the base plate 2, and the other end of the reinforcing plate 7 abuts against the fixing plate 1. It is used to strengthen the base plate 2 and is made of SS400 steel plate.

[0021] The fixing plate 1 is semi-circular in shape. The fixing plate 1 is used to connect the tooling of this utility model with the front end of the stern tube and the front stern tube sealing flange, so that the supporting tooling can be fixed to the front end of the stern tube.

[0022] The fixing plate 1 is evenly provided with bolt holes 8, and the number of bolt holes 8 is 4 or more. In actual use, the specifications and dimensions of the fixing plate 1 are designed according to the specifications of different stern shafts, corresponding to the fixing bolt holes of the stern shaft front seal and the front end of the stern shaft tube. Practical experience has proven that using 4 bolts can support the weight of the stern shaft.

[0023] The arc groove 6 is coated with polytetrafluoroethylene, which can effectively prevent damage to the stern shaft during construction and is safer than the previous metal tooling.

[0024] The base plate 2 is welded onto the fixing plate 1 and is used to install and support the support plate 4.

[0025] like Figure 5As shown, when in use, this utility model is installed at the front end of the stern shaft tube 9 and the front seal of the original stern shaft 10 via the fixing plate 1, thus adding a temporary front support structure to the stern shaft 10. The support plate 4 supports and supports the stern shaft 10, avoiding the risk of the stern shaft 10 losing support and colliding with the tubes and clamps inside the stern shaft 10 after separating from the rear bearing when moving towards the engine room.

[0026] Compared with previous roller bracket fixtures, this utility model eliminates the need for additional lower support, and the stern tube 9 area does not require cleaning or hot work. Furthermore, this fixture is easy to install; it only requires removing the front seal of the stern tube, meeting the need for temporary support, and can be quickly disassembled after use.

Claims

1. An electro-mechanical stern shaft forward support tooling comprising a fixing plate, characterised in that: The fixed plate (1) is connected to the base plate (2) on one side of the lower part. The upper end of the base plate (2) is connected to the support plate (4) by bolts (3) and fastened by nuts (5). The support plate (4) has an arc groove (6) in the center. The lower end of the base plate (2) is connected to a triangular reinforcing plate (7).

2. The electromechanical stern shaft front support fixture according to claim 1, characterized in that: The tray (4) and the fixing plate (1) are arranged in parallel.

3. The electromechanical stern shaft front support fixture according to claim 1, characterized in that: The tray (4) has extensions (4-1) on both sides, and bolts (3) pass through the extensions (4-1) to connect with the base plate (2).

4. The electromechanical stern shaft front support fixture according to claim 1, characterized in that: One end of the reinforcing plate (7) abuts against the base plate (2), and the other end of the reinforcing plate (7) abuts against the fixing plate (1).

5. The electromechanical stern shaft front support fixture according to claim 1, characterized in that: The fixing plate (1) is provided with bolt holes (8) evenly, and the number of bolt holes (8) is 4 or more.

6. The electromechanical stern shaft front support fixture according to claim 1 or 5, characterized in that: The fixed plate (1) is semi-circular in shape.

7. The electromechanical stern shaft front support fixture according to claim 1, characterized in that: The circular groove (6) is coated with polytetrafluoroethylene.

Images