Bearing device for mounting large tail shaft

Abstract

The bearing device comprises a supporting frame and a copper sleeve, the supporting frame comprises a flange mounting plate, a sleeve bottom supporting plate and sleeve side supporting plates on the two sides, the sleeve side supporting plates on the two sides and the sleeve bottom supporting plate form a copper sleeve mounting groove, and the flange mounting plate is located on the lower surface of the sleeve bottom supporting plate. The copper sleeve is used for being connected with a flange plate of a stern shaft tube, the bottom face and the two side faces of the copper sleeve are planes attached to the sleeve bottom supporting plate and the sleeve side supporting plates on the two sides respectively, the upper surface of the copper sleeve is an open arc groove face for supporting a stern shaft and used for bearing the stern shaft, and the copper sleeve is fixed in a copper sleeve installation groove formed by the sleeve bottom supporting plate and the sleeve side supporting plates on the two sides. According to the utility model, the support frame which can be quickly assembled and disassembled with the stern shaft tube is designed, the copper sleeve which is lower than the material hardness of the stern shaft is arranged on the support frame, and the support frame and the copper sleeve are used as support ends for dragging the stern shaft, so that the stern shaft cannot be scratched when the stern shaft slides on the copper sleeve, and after the stern shaft is installed at a fixed position, the support frame is disassembled from the stern shaft tube, so that the installation of the stern shaft is completed.

Description

Technical Field

[0001] The utility model relates to the technical field of auxiliary tooling for installing a stern shaft, in particular to a receiving device for installing a large stern shaft. Background Art

[0002] In the process of shipbuilding, we need to install the stern shaft in the stern shaft tube, such as Figure 7 In the past, the stern shaft had white steel sleeves on its front and rear outer diameters. When installing the drag, the friction surface was on the white steel sleeve. Figure 8 As shown. However, due to the improvement of the hull or the requirements of the hull, the stern shaft does not have a white steel sleeve on the rear outer diameter (such as Fig. 9 As shown in the figure, when the stern shaft is installed in the stern shaft tube, the friction surface caused by dragging is all on the outer diameter of the shaft, and the outer diameter surface precision of the stern shaft is very high, and friction scratches are not allowed during installation. If the stern shaft is installed in the previous way, an additional white steel sleeve is put on the rear outer diameter of the stern shaft, and there is no condition to retain the white steel sleeve on the rear outer diameter of the stern shaft in the stern shaft tube, and the white steel sleeve cannot be removed after installation, so the installation purpose cannot be achieved according to the traditional stern shaft installation method. Utility Model Content

[0003] In view of the above problems, the utility model provides a receiving device for installing a large stern shaft, which is directly installed on the stern shaft tube so that the stern shaft will not be scratched when it slides over.

[0004] To achieve the above purpose, the following technical solution is adopted: a receiving device for installing a large stern shaft, including a support frame and a copper sleeve,

[0005] The support frame is integrally formed with a connecting frame body, including a flange mounting plate, a sleeve bottom support plate and sleeve side support plates on both sides, wherein the sleeve side support plates on both sides are located on the upper surface of the sleeve bottom support plate and form a copper sleeve mounting groove with the sleeve bottom support plate, and the flange mounting plate is located on the lower surface of the sleeve bottom support plate and forms an inverted "L" shape with the sleeve bottom support plate, and is used to connect with the flange plate of the stern tube.

[0006] The bottom surface and two side surfaces of the copper sleeve are respectively fitted with the sleeve bottom support plate and the sleeve side support plates on both sides, and the upper surface is an open arc groove surface supporting the stern shaft, which is used to receive the stern shaft.

[0007] The copper sleeve is fixed in a copper sleeve installation groove formed by a sleeve bottom support plate and sleeve side support plates on both sides. The stern shaft outlet end of the copper sleeve exceeds the sleeve bottom support plate of the support frame, and the exceeding part serves as the overlapping end of the stern shaft tube.

[0008] Furthermore, the opening curvature of the arc groove surface of the copper sleeve opening is the same as the curvature of the arc surface receiving the stern shaft.

[0009] Furthermore, two end faces of the open circular arc groove surface located at the stern shaft entry end and the stern shaft exit end are processed into guiding inclined chamfers.

[0010] Furthermore, the sleeve bottom support plate and the sleeve side support plates on both sides are respectively fixed to the bottom surface and both side surfaces of the copper sleeve by bolts.

[0011] Furthermore, reinforcing ribs are welded between the sleeve bottom support plate and the flange mounting plate;

[0012] Furthermore, the flange mounting plate is provided with tightening bolts.

[0013] Beneficial effects of the utility model:

[0014] 1. The new design has a support frame that can be quickly disassembled and assembled with the stern tube, and a copper sleeve with a lower hardness than the stern shaft material is arranged on the support frame, and the two are used as support ends for dragging the stern shaft, so that the stern shaft will not be scratched when sliding over the copper sleeve. After the stern shaft is installed in a fixed position, the new design is removed from the stern tube to complete the installation of the stern shaft.

[0015] 2. Process the inclined chamfers on both ends of the copper sleeve to make the copper sleeve have better guidance when receiving the stern shaft.

[0016] 3. The structure is simple and easy to manufacture and install, which saves a lot of labor and equipment costs and increases economic benefits. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a front view of the utility model connected to the stern shaft;

[0018] Figure 2 It is a side view of the utility model connected with the stern shaft;

[0019] Figure 3 This is the front view of the support frame of the utility model;

[0020] Figure 4 This is a side view of the support frame of the utility model;

[0021] Figure 5 This is the front view of the copper sleeve of the utility model;

[0022] Figure 6 It is a side sectional view of the copper sleeve of the utility model;

[0023] Figure 7 This is a schematic diagram of the position of the stern shaft installed on the stern tube;

[0024] Figure 8 This is a schematic diagram for installing the white steel sleeve stern shaft;

[0025] Fig. 9 This is a schematic diagram of the stern shaft without a white steel sleeve at the rear.

[0026] As shown in the figure: 1. Support frame; 2. Copper sleeve; 3. Tighten bolts; 4. Bolts; 5. Stern shaft; 10. Flange mounting plate; 11. Sleeve bottom support plate; 12. Sleeve side support plate; 13. Reinforcement ribs; 20. Open arc groove surface; 21. Stern shaft entry end; 22. Stern shaft exit end; 900, stern shaft tube; 901, white steel sleeve. DETAILED DESCRIPTION

[0027] Example 1

[0028] The following is further described with reference to the accompanying drawings: Figure 1-2 A receiving device for installing a large stern shaft is provided, comprising a support frame 1 and a copper sleeve 2, wherein the support frame 1 is connected to the flange of the stern shaft tube and is used to support the copper sleeve 2, and the copper sleeve 2 is used to receive the stern shaft 5.

[0029] like Figure 3-4 As shown, the design of the support frame 1 is that the support frame 1 is integrally formed with a connecting frame body, including a flange mounting plate 10, a sleeve bottom support plate 11 and sleeve side support plates 12 on both sides, wherein the sleeve side support plates 12 on both sides are located on the upper surface of the sleeve bottom support plate 11 and form a copper sleeve mounting groove with the sleeve bottom support plate 11, the flange mounting plate 10 is located on the lower surface of the sleeve bottom support plate 11 and is in an inverted "L" shape with the sleeve bottom support plate 11, ensuring that the surface connected to the flange of the stern tube is flat, and the tightening bolts 3 connected to the flange of the stern tube are installed on the flange mounting plate 10. In order to ensure the structural strength of the support frame, a reinforcing rib 13 is welded between the sleeve bottom support plate 11 and the flange mounting plate 10.

[0030] like Figure 5-6 As shown, the design of the copper sleeve 2 is that the bottom surface and the two side surfaces of the copper sleeve 2 are respectively fitted with the sleeve bottom support plate 11 and the sleeve side support plates 12 on both sides, and the upper surface is an open arc groove surface 20 supporting the stern shaft, which is used to receive the stern shaft 5, wherein the opening curvature of the open arc groove surface 20 of the copper sleeve is designed to be the same as the curvature of the arc surface receiving the stern shaft 5, so as to avoid the receiving surface being too concentrated, and in addition, the two end surfaces of the open arc groove surface 20 located at the stern shaft entry end 21 and the stern shaft exit end 22 are processed as guiding inclined chamfers, so that the copper sleeve 2 has better guiding performance when receiving the stern shaft 5,

[0031] In the present novel assembly, the copper sleeve 2 is installed in the copper sleeve installation groove formed by the sleeve bottom support plate 11 and the sleeve side support plates 12 on both sides, and is fixed to the bottom surface and both side surfaces of the copper sleeve 2 by bolts 4 respectively with the sleeve bottom support plate 11 and the sleeve side support plates 12 on both sides. In addition, the stern shaft outlet end 22 of the copper sleeve 2 exceeds the sleeve bottom support plate 11 of the support frame 1, and the exceeding part serves as the lap end of the stern shaft tube.

[0032] When installing the stern shaft, the stern shaft outlet end 22 of the copper sleeve 2 is placed on the inner edge of the stern shaft tube, and the support frame 1 is installed on the flange surface of the stern shaft tube by tightening the bolt 3. The stern shaft 5 is placed on the copper sleeve 2, and the stern shaft 5 slides over the copper sleeve 2. The material of the copper sleeve 2 is lower in hardness than the material of the stern shaft, so that the stern shaft 5 will not be scratched when sliding over the copper sleeve 2. After the stern shaft 2 is installed to a fixed position, the support frame 1 is removed from the stern shaft tube to complete the installation of the stern shaft 5.

[0033] The present invention is not limited to the present embodiment, and any equivalent concepts or changes within the technical scope disclosed in the present invention are included in the protection scope of the present invention.

Claims

1. A receiving device for installing a large stern shaft, characterized in that: It comprises a support frame (1) and a copper sleeve (2). The support frame (1) is an integrally formed connecting frame body, comprising a flange mounting plate (10), a sleeve bottom support plate (11) and sleeve side support plates (12) on both sides, wherein the sleeve side support plates (12) on both sides are located on the upper surface of the sleeve bottom support plate (11) and form a copper sleeve mounting groove with the sleeve bottom support plate (11); the flange mounting plate (10) is located on the lower surface of the sleeve bottom support plate (11) and forms an inverted "L" shape with the sleeve bottom support plate (11) and is used to be connected to the flange plate of the stern tube. The bottom surface and two side surfaces of the copper sleeve (2) are respectively planes that fit with the sleeve bottom support plate (11) and the sleeve side support plates (12) on both sides, and the upper surface is an open arc groove surface (20) that supports the stern shaft (5) and is used to receive the stern shaft (5). The copper sleeve (2) is fixed in a copper sleeve installation groove formed by a sleeve bottom support plate (11) and sleeve side support plates (12) on both sides; a stern shaft outlet end (22) of the copper sleeve (2) protrudes beyond the sleeve bottom support plate (11) of the support frame (1), and the protruding portion serves as a lap end of the stern shaft tube.

2. The receiving device for installing a large stern shaft according to claim 1, characterized in that: The opening arc angle of the opening circular arc groove surface (20) of the copper sleeve (2) is the same as the arc angle of the circular arc surface receiving the stern shaft (5).

3. The receiving device for installing a large stern shaft according to claim 2, characterized in that: The two end faces of the open circular arc groove surface (20) located at the stern shaft entry end (21) and the stern shaft exit end (22) are processed into guiding inclined chamfers.

4. The receiving device for installing a large stern shaft according to claim 3, characterized in that: The sleeve bottom support plate (11) and the sleeve side support plates (12) on both sides are respectively fixed to the bottom surface and the two side surfaces of the copper sleeve (2) by bolts (4).

5. The receiving device for installing a large stern shaft according to claim 4, characterized in that: Reinforcing ribs are welded between the sleeve bottom support plate (11) and the flange mounting plate (10).

6. The receiving device for installing a large stern shaft according to claim 5, characterized in that: The flange mounting plate (10) is provided with tightening bolts (3).

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