Ship tail shaft correcting and butting device

By designing a docking device for correction of the stern shaft of the ship, the limit guide processing of the docking shaft is used by the positioning seat and the limit column, and the height of the upper limit plate is adjusted by the hydraulic cylinder, the problems of long construction cycle, large workload and inconvenient loading in the prior art are solved, and a more efficient and safer calibration process is achieved.

CN222608687UActive Publication Date: 2025-03-14NANTONG YAHUA SHIPBUILDING GRP CO LTD
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Patent Information

Application Number
CN202420708969.3
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-04-08
Publication Date
2025-03-14
Estimated Expiration
2034-04-08

AI Technical Summary

Technical Problem

The existing ship stern shaft correction method has a long construction cycle and a large workload, and it is not convenient to transport unqualified pieces of garbage to the inside of the crusher shell for re-milling. The loading is time-consuming and labor-intensive, inconvenient to operate, and poor safety.

Method used

A ship's stern shaft correction docking device is designed, including a stern shaft body and a correction plate. The correction plate is fixed to the outside of the stern shaft body through a positioning seat, and the upper limit plate and limit column are used to perform limit guidance of the docking shaft. The height of the upper limit plate is adjusted by the hydraulic cylinder to achieve flexible adjustment of the docking shaft.

Benefits of technology

The coaxial adjustment process between the ship's stern shaft and the diesel engine docking shaft is simplified, construction efficiency and safety is improved, workload is reduced, and the height adjustment of the docking shaft is facilitated.

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    Figure CN222608687U_ABST
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Abstract

The utility model discloses a ship tail shaft correction butt joint device which comprises a tail shaft body and a correction plate, the upper side of one end of the correction plate is provided with a detachable positioning seat through a positioning column and a limiting nut, one end of the correction plate is fixedly arranged on the outer side of one end of the tail shaft body in a sleeved mode through the positioning seat, and the other end of the correction plate is provided with a first limiting column and a second limiting column. A detachable top plate is arranged on the upper sides of the first limiting columns and the upper sides of the second limiting columns, an upper limiting plate is arranged on the top plate through a hydraulic cylinder, and the upper limiting plate and the first limiting columns are used for conducting limiting and guiding treatment on the upper portion, the lower portion, the left portion and the right portion of the butt joint shaft. And then an upper limiting plate at the other end of the correcting plate and a plurality of first limiting columns are used for limiting and guiding the butt joint shaft up and down and left and right, so that the ship tail shaft and the diesel engine butt joint shaft can be coaxially and directly butted, the structure is simple, and operation is convenient.
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Description

Technical Field

[0001] The utility model relates to the technical field of ship tail shaft correction equipment, in particular to a ship tail shaft correction docking device. Background Art

[0002] The existing ship tail shaft correction method is to connect the tail shaft coupling with the diesel engine crankshaft, slightly bring the coupling and the diesel engine crankshaft screws together, and then use a dial indicator to measure the coaxiality of the tail shaft while the diesel engine crank drives the tail shaft to rotate. Then, according to the dial indicator measurement data, the hanger position is repeatedly adjusted by stuffing copper sheets between the hanger and the ship to adjust the coaxiality of the tail shaft and the crankshaft to a reasonable range. This adjustment method requires frequent tightening and loosening of the hanger and calculation of the copper sheets, a long construction period, and a huge workload.

[0003] The ship tail shaft correction docking device with application number 201920888265.8 in the prior art includes a plurality of brackets supported under the tail shaft, the bracket includes a bottom frame, both sides of the bottom frame are provided with slide grooves, two frames are provided in the bottom frame, rollers are installed at both ends of each frame, two rollers at the lower end of the frame are respectively arranged in the two slide grooves of the bottom frame, the roller at the upper end of the frame is supported on the tail shaft, and jacks are respectively arranged at both ends of the bottom frame, one end of the jack is against the inner wall of the bottom frame, and the other end of the jack is against the roller shaft at the lower end of the frame. It is used to solve the problems of long construction period and huge workload of the existing tail shaft correction, but it is not convenient to transport the unqualified garbage blocks to the inside of the crusher shell for re-crushing, loading is time-consuming and labor-intensive, and the operation is inconvenient, and the safety of manual loading is poor. Utility Model Content

[0004] The utility model aims to provide a ship tail shaft correction docking device to solve the problems in the prior art that it is inconvenient to transport unqualified garbage blocks to the inside of a crusher shell for re-crushing, loading is time-consuming and labor-intensive, the operation is inconvenient, and the safety of manual loading is poor.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a ship tail shaft correction and docking device, comprising a tail shaft body and a correction plate, wherein the upper side of one end of the correction plate may have a detachable positioning seat through a positioning column and a limiting nut, and one end of the correction plate is fixedly sleeved on the outer side of one end of the tail shaft body through the positioning seat, and the other end of the correction plate is installed with a first limiting column and a second limiting column, a detachable top plate is provided on the upper side of the first limiting column and the second limiting column, and an upper limiting plate is provided on the top plate through a hydraulic cylinder, and the upper limiting plate and multiple first limiting columns are used for limiting and guiding processing of the docking shaft up and down and left and right.

[0006] Furthermore, the positioning column is vertically welded to one side of the correction plate, and an outer side of one end of the positioning column is provided with an external thread that matches with the thread of the limiting nut.

[0007] Furthermore, the positioning seat is configured as an "X"-shaped support, and the top of the positioning seat is configured as an arc-shaped groove.

[0008] Furthermore, the first limiting posts are arranged perpendicularly to the correction plate, and a plurality of groups of first limiting posts are arranged in parallel, and the spacing between the second limiting posts is greater than the spacing between two adjacent first limiting posts.

[0009] Furthermore, rollers are rotatably provided on the outer sides of the first limiting column and the second limiting column, and a rubber protective layer is provided on the outer sides of the rollers.

[0010] Furthermore, positioning holes are provided on the first limiting column, the second limiting column and the top plate, and the positioning holes are locked by positioning pins.

[0011] Compared with the prior art, the beneficial effects of the utility model are:

[0012] 1. The utility model has one end of the correction plate fixedly sleeved on the outside of one end of the tail shaft body through a positioning seat, and then uses the upper limit plate and a plurality of first limit columns at the other end of the correction plate to limit and guide the docking shaft up and down and left and right, so as to facilitate the coaxial positive docking of the ship's tail shaft and the diesel engine docking shaft, and has a simple structure and is easy to operate.

[0013] 2. The utility model is vertically welded to one side of the correction plate through a positioning column, and an outer thread matching the thread of the limit nut is provided on the outer side of one end of the positioning column. The positioning seat is arranged as a "X"-shaped support, and the top of the positioning seat is arranged as an arc groove, which is convenient for fixing the positioning seat to the outer side of one end of the correction plate. The fixing stability is high, and the disassembly and assembly are convenient and quick.

[0014] 3. The utility model is provided with a detachable top plate on the upper sides of the first limit column and the second limit column, and an upper limit plate is provided on the top plate through a hydraulic cylinder, so that the upper limit plate can be driven to rise and fall by the hydraulic cylinder, so as to adjust the docking height of the docking shaft, and the top plate and the upper limit plate can be disassembled after use, which improves the flexibility of use. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0016] Figure 1 This is the front view of the overall docking structure of the utility model;

[0017] Figure 2 This is a schematic diagram of the correction plate structure of the utility model;

[0018] Figure 3This is a top view of the correction plate structure of the utility model;

[0019] Figure 4 This is a schematic diagram of the positioning pin structure of the utility model.

[0020] In the figure: 1. tail shaft body; 2. correction plate; 3. positioning seat; 4. positioning column; 5. limiting nut; 6. first limiting column; 7. roller; 8. second limiting column; 9. top plate; 10. hydraulic cylinder; 11. upper limiting plate; 12. positioning hole; 13. positioning pin; 14. docking shaft. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] See also Figure 1 , Figure 2 , Figure 3 , Figure 4 In the embodiment of the utility model, a ship tail shaft correction and docking device includes a tail shaft body 1 and a correction plate 2. A detachable positioning seat 3 can be provided on the upper side of one end of the correction plate 2 through a positioning column 4 and a limiting nut 5, and one end of the correction plate 2 is fixedly sleeved on the outer side of one end of the tail shaft body 1 through the positioning seat 3. The positioning column 4 is vertically welded to one side of the correction plate 2, and an external thread that matches the thread of the limiting nut 5 is provided on the outer side of one end of the positioning column 4. The positioning seat 3 is arranged as a "J"-shaped support, and the top of the positioning seat 3 is arranged as an arc groove, which is convenient for fixing the positioning seat 3 on the outer side of one end of the correction plate 2, and the fixing stability is high, and the disassembly and assembly are convenient and quick.

[0023] like Figure 1 , Figure 2 and Figure 3 As shown, one end of the correction plate 2 is fixedly sleeved on the outer side of one end of the tail shaft body 1 through the positioning seat 3, and then the first limit column 6 and the second limit column 8 are installed on the other end of the correction plate 2. A detachable top plate 9 is provided on the upper side of the first limit column 6 and the second limit column 8, and an upper limit plate 11 is provided on the top plate 9 through a hydraulic cylinder 10, so that the upper limit plate 11 is driven by the hydraulic cylinder 10 to rise and fall, thereby adjusting the docking height of the docking shaft 14. The upper limit plate 11 and multiple first limit columns 6 are used for limiting and guiding the docking shaft 14 up and down and left and right, so as to facilitate the coaxial positive docking of the ship's tail shaft and the diesel engine docking shaft, and the structure is simple and the operation is convenient.

[0024] like Figure 2 and Figure 3 As shown, the first limiting column 6 is vertically arranged with the correction plate 2, and multiple groups of the first limiting columns 6 are arranged in parallel, and the spacing between the second limiting columns 8 is greater than the spacing between two adjacent first limiting columns 6, and the second limiting columns 8 are used to guide the docking shaft 14 between the adjacent first limiting columns 6. The roller 7 is rotatably arranged on the outside of the first limiting column 6 and the second limiting column 8, and a rubber protective layer is arranged on the outside of the roller 7, so that the docking shaft 14 can be rolled and guided when it is horizontally inserted between the first limiting column 6 and the second limiting column 8, which is conducive to improving the smoothness of horizontal docking.

[0025] like Figure 1 , Figure 2 As shown, in order to facilitate the removal of the top plate 9 and the upper limit plate 11 after use, positioning holes 12 are provided on the first limit column 6, the second limit column 8 and the top plate 9, and the positioning holes 12 are locked by positioning pins 13. The top plate 9 is installed and fixed with high stability, and disassembly and assembly are convenient and quick.

[0026] The working principle and use process of the utility model are as follows: when in use, one end of the correction plate 2 is fixedly sleeved on the outer side of one end of the tail shaft body 1 through the positioning seat 3, and then the upper limit plate 11 and multiple first limit columns 6 at the other end of the correction plate 2 are used to limit and guide the docking shaft 14 up and down and left and right, so as to facilitate the coaxial positive docking of the ship's tail shaft and the diesel engine docking shaft, and the structure is simple and the operation is convenient.

[0027] Finally, it should be noted that the above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A ship tail shaft correction docking device, comprising a tail shaft body (1) and a correction plate (2), characterized in that: The upper side of one end of the correction plate (2) may be provided with a detachable positioning seat (3) through a positioning column (4) and a limiting nut (5), and one end of the correction plate (2) is fixedly sleeved on the outer side of one end of the tail shaft body (1) through the positioning seat (3), and the other end of the correction plate (2) is installed with a first limiting column (6) and a second limiting column (8), and a detachable top plate (9) is provided on the upper side of the first limiting column (6) and the second limiting column (8), and an upper limit plate (11) is provided on the top plate (9) through a hydraulic cylinder (10), and the upper limit plate (11) and the plurality of first limiting columns (6) are used for limiting and guiding the upper and lower and left and right directions of the docking shaft (14).

2. A ship tail shaft alignment docking device according to claim 1, characterized in that: The positioning column (4) is vertically welded to one side of the correction plate (2), and an outer side of one end of the positioning column (4) is provided with an external thread that matches the thread of the limiting nut (5).

3. A ship tail shaft correction docking device according to claim 2, characterized in that: The positioning seat (3) is configured as a "X"-shaped support, and the top of the positioning seat (3) is configured as an arc-shaped groove.

4. A ship tail shaft alignment docking device according to claim 1, characterized in that: The first limiting posts (6) are arranged perpendicularly to the correction plate (2), and a plurality of groups of first limiting posts (6) are arranged in parallel, and the spacing between the second limiting posts (8) is greater than the spacing between two adjacent first limiting posts (6).

5. A ship tail shaft alignment docking device according to claim 4, characterized in that: A roller (7) is rotatably provided on the outer sides of the first limiting column (6) and the second limiting column (8), and a rubber protective layer is provided on the outer sides of the roller (7).

6. A ship tail shaft alignment docking device according to claim 1, characterized in that: The first limiting column (6), the second limiting column (8) and the top plate (9) are all provided with positioning holes (12), and the positioning holes (12) are locked by positioning pins (13).

Citation Information

Patent Citations

  • Ship tail shaft correcting and butting device

    CN210416928U