A ship stern tube machining device

CN224615885UActive Publication Date: 2026-08-11JINFAN PANSHENG (DALIAN) OFFSHORE ENGINEERING CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-07-18
Publication Date
2026-08-11

AI Technical Summary

Technical Problem

但是目前现有技术在对船舶艉管内壁加工过程中,主要通过三爪卡盘对艉管端部进行夹持固定,其夹持效果不佳,不能保证艉管内壁加工的质量

Benefits of technology

通过夹持机构和调整打磨机构的设置,使船舶艉管插入转动套内,转动左右螺旋丝杠推动转动套内的调整环套在滑柱限位下向两侧移动,调整环套内圈顶推夹持座向转动套的中心靠拢,对船舶艉管进行快速夹持固定,提高夹持固定的便捷性和稳定性,之后通过调整打磨机构对旋转的船舶艉管内壁进行打磨处理,确保船舶艉管内壁加工的质量和精度。

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Abstract

This utility model relates to the field of shipbuilding processing technology, specifically disclosing a ship stern tube processing device. The device includes a support mechanism, a base plate with a support seat fixed at its upper end, and a clamping mechanism mounted on the support mechanism for quickly clamping the ship stern tube. An adjustment and grinding mechanism is provided on one side of the clamping mechanism for grinding the inner wall of the clamped ship stern tube. Through the clamping and grinding mechanisms, the ship stern tube is inserted into a rotating sleeve. Rotating the left and right helical screws pushes the adjusting ring sleeve inside the rotating sleeve to move to both sides under the limiting position of the sliding column. The inner ring of the adjusting ring sleeve pushes the clamping seat towards the center of the rotating sleeve, quickly clamping and fixing the ship stern tube, improving the convenience and stability of clamping and fixing. Then, the adjustment and grinding mechanism grinds the inner wall of the rotating ship stern tube, ensuring the quality and precision of the ship stern tube inner wall processing.
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Description

Technical Field

[0001] This utility model relates to the field of shipbuilding processing technology, and in particular to a ship stern tube processing device. Background Technology

[0002] A ship is a general term for all kinds of vessels; a ship is a means of transportation that can navigate or anchor in waterways for transport or operations. The stern tube of a ship refers to the piping system connecting the propeller at the stern of the vessel to the main engine. It plays a crucial role in transmitting power from the main engine to the propeller, thus propelling the ship forward. Therefore, its inner wall requires precise grinding. However, current technology for processing the inner wall of the stern tube mainly relies on a three-jaw chuck to clamp and fix the end of the stern tube. This clamping effect is unsatisfactory and cannot guarantee the quality of the stern tube inner wall processing. Utility Model Content

[0003] The purpose of this utility model is to provide a ship stern tube processing device in order to solve the above-mentioned problems.

[0004] This utility model achieves the above objectives through the following technical solutions: A ship stern tube processing device includes a support mechanism, which includes a base plate with a support seat fixed at the upper end of the base plate. It also includes a clamping mechanism mounted on the support mechanism for quickly clamping the ship stern tube. An adjustment and grinding mechanism for grinding the inner wall of the clamped stern tube is provided on one side of the clamping mechanism. A power component for rotating the clamping mechanism is mounted on the clamping mechanism. The clamping mechanism includes a rotating sleeve rotatably mounted on the support seat. A flange is provided in the middle of the inner wall of the rotating sleeve, and fixing rings are installed at both ends of the rotating sleeve. The device is equipped with left and right helical screws and a sliding column. A clamping assembly is provided between the fixed ring and the flange. The clamping assembly includes an adjusting ring sleeve provided on the left and right helical screws and the sliding column. Grooves are evenly distributed around the circumference of the opposite surfaces of the fixed ring and the flange. A clamping seat is provided between the opposite grooves. Connecting seats that are inserted into the grooves are fixed at both ends of the clamping seat. A support plate is fixed on the opposite surface of the fixed ring and the flange, located on the lower side of the groove. A spring is fixed between the connecting seat and the opposite support plate. The clamping seat is wedge-shaped near the inner wall of the rotating sleeve. The inner ring surface of the adjusting ring sleeve is set as a wedge-shaped surface that mates with the clamping seat.

[0005] Further settings: The left and right helical screws are rotatably connected to the fixed ring, the adjusting ring sleeve is threadedly connected to the left and right helical screws, and the adjusting ring sleeve is slidably connected to the sliding column.

[0006] Further adjustments: the adjusting ring and the clamping seat are slidably connected, and the connecting seat and the groove are slidably connected.

[0007] Further configuration: The power assembly includes a gear ring fixed on the rotating sleeve, a geared motor fixedly mounted on the base plate, and a gear meshing with the gear ring installed at the output end of the geared motor.

[0008] Further configuration: The grinding mechanism includes a lateral adjustment component fixed on the base plate, a longitudinal adjustment component on the lateral adjustment component, and a grinding component on the longitudinal adjustment component.

[0009] Further configuration: The lateral adjustment assembly includes a lateral support frame, on which a lateral lead screw is rotatably mounted, and a lateral adjustment bracket is threadedly connected to the lateral lead screw; the longitudinal adjustment assembly includes a longitudinal lead screw rotatably connected to the lateral adjustment bracket, and a longitudinal adjustment bracket is threadedly connected to the longitudinal lead screw; the grinding assembly includes a motor fixed to the longitudinal adjustment bracket, and a grinding rod is connected to the power end of the motor.

[0010] Further settings: The transverse adjustment frame is slidably connected to the transverse support frame, the longitudinal adjustment frame is slidably connected to the transverse adjustment frame, and the center line of the grinding rod coincides with that of the rotating sleeve.

[0011] Compared with the prior art, the beneficial effects of this utility model are as follows: By using a clamping mechanism and an adjusting and grinding mechanism, the stern tube of the ship is inserted into the rotating sleeve. Rotating the left and right helical screws pushes the adjusting ring inside the rotating sleeve to move to both sides under the limit of the sliding column. The inner ring of the adjusting ring pushes the clamping seat towards the center of the rotating sleeve, quickly clamping and fixing the stern tube of the ship, improving the convenience and stability of clamping and fixing. Then, the adjusting and grinding mechanism grinds the inner wall of the rotating stern tube to ensure the quality and precision of the machining of the inner wall of the stern tube. Attached Figure Description

[0012] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0013] Figure 1 This is a schematic diagram of the structure of a ship stern tube processing device according to the present invention; Figure 2 This is a schematic diagram of the main cross-section of a ship stern tube processing device according to the present invention; Figure 3 This is a top view schematic diagram of a ship stern tube processing device according to the present invention; Figure 4 This is a half-sectional structural diagram of the clamping mechanism of a ship stern tube processing device according to the present invention; Figure 5 This is a schematic diagram of the clamping mechanism of the ship stern tube processing device described in this utility model in an exploded state. Figure 6 This is a schematic diagram of the structure of some parts of the clamping mechanism of the ship stern tube processing device described in this utility model.

[0014] The annotations in the attached figures are explained as follows: 11. Base plate; 12. Support seat; 21. Rotating sleeve; 22. Fixing ring; 23. Left and right helical screws; 24. Sliding column; 25. Adjusting ring sleeve; 26. Clamping seat; 27. Connecting seat; 28. Spring; 31. Gear ring; 32. Gear motor; 33. Gear; 41. Transverse support frame; 42. Transverse screw; 43. Transverse adjustment frame; 44. Longitudinal screw; 45. Longitudinal adjustment frame; 46. Electric motor; 47. Grinding rod. Detailed Implementation

[0015] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, 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," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0016] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" 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.

[0017] The present invention will be further described below with reference to the accompanying drawings: like Figures 1-6As shown, a ship stern tube processing device includes a support mechanism, which includes a base plate 11 and a support seat 12 fixed at the upper end of the base plate 11. It also includes a clamping mechanism for quickly clamping the ship stern tube, which is provided on the support mechanism. An adjustment and grinding mechanism for grinding the inner wall of the clamped ship stern tube is provided on one side of the clamping mechanism. A power component for rotating the clamping mechanism is installed on the clamping mechanism. In this embodiment: the clamping mechanism includes a rotating sleeve 21 rotatably mounted on a support base 12. A flange is provided in the middle of the inner wall of the rotating sleeve 21. Fixed rings 22 are installed at both ends of the rotating sleeve 21. Left and right helical screws 23 and sliding pins 24 are passed through the fixed rings 22. A clamping assembly is provided between the fixed rings 22 and the flange. The clamping assembly includes an adjusting ring sleeve 25 provided on the left and right helical screws 23 and sliding pins 24. Grooves are evenly distributed around the circumference of the opposite surfaces of the fixed rings 22 and the flange. A clamping seat 26 is provided between the opposite grooves. Connecting seats 27 inserted into the grooves are fixed at both ends of the clamping seat 26. A support plate is fixed on the opposite surface of the fixed rings 22 and the flange, located below the groove. A spring 28 is fixed between the connecting seat 27 and the opposite support plate. The clamping seat 26 is wedge-shaped near the inner wall of the rotating sleeve 21. The inner ring of the adjusting ring 25 is set as a wedge-shaped surface that mates with the clamping seat 26; the left and right helical screws 23 are rotatably connected to the fixed ring 22, the adjusting ring 25 is threadedly connected to the left and right helical screws 23, and the adjusting ring 25 is slidably connected to the sliding column 24; the adjusting ring 25 is slidably connected to the clamping seat 26, and the connecting seat 27 is slidably connected to the groove. The stern tube of the ship is inserted into the rotating sleeve 21, and the left and right helical screws 23 are rotated by a wrench, so that the left and right helical screws 23 push the adjusting ring 25 in the rotating sleeve 21 to move to both sides under the limit of the sliding column 24. The inner ring of the adjusting ring 25 pushes the clamping seat 26 to overcome the force of the spring 28 on the connecting seat 27, so that the clamping seat 26 moves closer to the center position of the rotating sleeve 21, and the stern tube of the ship is quickly clamped and fixed, improving the stability of the clamping and fixing.

[0018] In this embodiment: the power component includes a gear ring 31 fixed on the rotating sleeve 21, a reduction motor 32 fixedly installed on the base plate 11, and a gear 33 meshing with the gear ring 31 installed at the output end of the reduction motor 32. By starting the reduction motor 32, the gear 33 is driven to mesh with the gear ring 31 and rotate, so that the gear ring 31 drives the rotating sleeve 21 to rotate under the support of the support seat 12.

[0019] In this embodiment: the adjustment and polishing mechanism includes a horizontal adjustment component fixed on the base plate 11, a vertical adjustment component is provided on the horizontal adjustment component, and a polishing component is provided on the vertical adjustment component. The lateral adjustment assembly includes a lateral support frame 41, on which a lateral lead screw 42 is rotatably mounted, and a lateral adjustment frame 43 is threadedly connected to the lateral lead screw 42. The longitudinal adjustment assembly includes a longitudinal lead screw 44 rotatably connected to the lateral adjustment frame 43, and a longitudinal adjustment frame 45 is threadedly connected to the longitudinal lead screw 44. The grinding assembly includes a motor 46 fixed to the longitudinal adjustment frame 45, and a grinding rod 47 is connected to the power end of the motor 46. The lateral adjustment frame 43 is slidably connected to the lateral support frame 41, and the longitudinal adjustment frame 45 is slidably connected to the lateral adjustment frame 43. The grinding rod 47 coincides with the center line of the rotating sleeve 21. By rotating the lateral lead screw 42, the lateral lead screw 42 pushes the lateral adjustment frame 43 to move relative to the stern tube of the ship, inserting the grinding rod 47 into the stern tube of the ship. Then, by rotating the longitudinal lead screw 44, the longitudinal lead screw 44 pushes the longitudinal adjustment frame 45 to move, so that the grinding rod 47 driven by the motor 46 contacts the inner wall of the stern tube of the ship.

[0020] The working principle and usage process of this utility model are as follows: The stern tube of the ship is inserted into the rotating sleeve 21. By rotating the left and right helical screws 23 with a wrench, the screws push the adjusting ring 25 inside the rotating sleeve 21 to move to both sides under the limitation of the sliding column 24. The inner ring of the adjusting ring 25 pushes against the clamping seat 26, overcoming the force of the spring 28 on the connecting seat 27, causing the clamping seat 26 to move closer to the center position of the rotating sleeve 21, thus clamping and fixing the stern tube of the ship. The gear 32 is then started to drive the gear 3... 3 meshes with the gear ring 31 and rotates, causing the gear ring 31 to drive the rotating sleeve 21 to rotate under the support of the support seat 12. Then, the transverse screw 42 is rotated, causing the transverse screw 42 to push the transverse adjustment frame 43 to move relative to the ship's stern tube, inserting the grinding rod 47 into the ship's stern tube. Then, the longitudinal screw 44 is rotated, causing the longitudinal screw 44 to push the longitudinal adjustment frame 45 to move, so that the grinding rod 47 driven by the motor 46 contacts the inner wall of the ship's stern tube, and performs grinding treatment on the rotating inner wall of the ship's stern tube.

[0021] 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 illustrative of the principles of this 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.

Claims

1. A ship stern tube processing device, comprising a support mechanism, the support mechanism including a base plate (11), wherein a support seat (12) is fixed to the upper end of the base plate (11), characterized in that: It also includes a clamping mechanism for quickly clamping the stern tube of a ship, which is provided on the support mechanism. One side of the clamping mechanism is provided with an adjustment and grinding mechanism for grinding the inner wall of the clamped stern tube. A power assembly for rotating the clamping mechanism is installed on the clamping mechanism. The clamping mechanism includes a rotating sleeve (21) rotatably mounted on the support base (12). A flange is provided in the middle of the inner wall of the rotating sleeve (21). Fixed rings (22) are installed at both ends of the rotating sleeve (21). Left and right helical screws (23) and sliding columns (24) pass through the fixed rings (22). A clamping assembly is provided between the fixed rings (22) and the flange. The component includes an adjusting ring sleeve (25) disposed on the left and right helical screws (23) and the slide column (24). The fixed ring (22) and the flange have grooves evenly distributed around their circumference on their opposite surfaces. A clamping seat (26) is disposed between the opposite grooves. Connecting seats (27) inserted into the grooves are fixed at both ends of the clamping seat (26). A support plate is fixed on the opposite surface of the fixed ring (22) and the flange on the lower side of the groove. A spring (28) is fixed between the connecting seat (27) and the support plate. The clamping seat (26) is wedge-shaped near the inner wall of the rotating sleeve (21). The inner ring surface of the adjusting ring sleeve (25) is configured as a wedge-shaped surface that mates with the clamping seat (26).

2. The ship stern tube processing device according to claim 1, characterized in that: The left and right spiral screws (23) are rotatably connected to the fixed ring (22), the adjusting ring sleeve (25) is threadedly connected to the left and right spiral screws (23), and the adjusting ring sleeve (25) is slidably connected to the sliding column (24).

3. The ship stern tube processing device according to claim 1, characterized in that: The adjusting ring (25) is slidably connected to the clamping seat (26), and the connecting seat (27) is slidably connected to the groove.

4. The ship stern tube processing device according to claim 1, characterized in that: The power assembly includes a gear ring (31) fixed on the rotating sleeve (21), a geared motor (32) fixedly mounted on the base plate (11), and a gear (33) meshing with the gear ring (31) installed at the output end of the geared motor (32).

5. A ship stern tube processing device according to claim 1, characterized in that: The adjustment and polishing mechanism includes a lateral adjustment component fixed on the base plate (11), a longitudinal adjustment component is provided on the lateral adjustment component, and a polishing component is provided on the longitudinal adjustment component.

6. A ship stern tube processing apparatus according to claim 5, characterized in that: The lateral adjustment assembly includes a lateral support frame (41), on which a lateral lead screw (42) is rotatably mounted, and a lateral adjustment frame (43) is threadedly connected to the lateral lead screw (42). The longitudinal adjustment assembly includes a longitudinal lead screw (44) rotatably connected to the lateral adjustment frame (43), and a longitudinal adjustment frame (45) is threadedly connected to the longitudinal lead screw (44). The grinding assembly includes a motor (46) fixed to the longitudinal adjustment frame (45), and a grinding rod (47) is connected to the power end of the motor (46).

7. A ship stern tube processing apparatus according to claim 6, characterized in that: The transverse adjustment frame (43) is slidably connected to the transverse support frame (41), the longitudinal adjustment frame (45) is slidably connected to the transverse adjustment frame (43), and the grinding rod (47) coincides with the center line of the rotating sleeve (21).