Shafting positioning device for ship repair construction

Abstract

The utility model discloses a kind of shafting positioning devices for ship repair construction, belong to ship repair technical field. Including two positioning rings and two integrated webs, the inner wall of two described positioning rings is rotatably connected with ring cover, the inside of two described positioning rings is all set up with mounting groove, the inner wall of two described positioning rings is all set up with first through -hole, the outer surface of two described positioning rings is all fixedly connected with two damping pads, the outside of two described positioning rings is all set with limit mechanism, drive driving block by ring cover rotation drives push rod, make arc line resist pole rotate around positioning column, drive friction pad to be annular multi-point position and resist the shafting curved surface, the profile of different diameter shafting can be self-adapting, avoid local stress concentration to appear in clamping interface, effectively solve the problem of unstable when fixing arc surface clamping different diameter shafting in prior art, reduce shafting sway, improve the precision of subsequent maintenance operation and shorten maintenance time consumption.

Description

Technical Field

[0001] This utility model relates to the field of ship repair technology, and in particular to a shafting positioning device for ship repair and construction. Background Technology

[0002] The shafting system is a general term for shafts. With the development of the times and technology, the maritime and river transportation industries have been rapidly improved. Among them, ships are indispensable in the maritime and river transportation industries. Ships need to be maintained before each launch and also need to be inspected after they come ashore to ensure the superior performance of the ships. The maintenance of the shafting system is an important part of this process.

[0003] A shafting positioning device for ship repair and construction, with publication number CN217667918U, relates to the field of ship repair technology. This utility model includes a base, a drive motor, an infrared generator, and an infrared receiver. Equipment plates are welded to the left and right sidewalls of the base, and the top sidewall of the equipment plate is connected to the drive motor via a motor frame. A clamping plate is installed on the end sidewall of the drive motor. An infrared generator is installed on the left side of the base, and an infrared receiver is installed on the right side of the base.

[0004] Although the aforementioned shaft clamping device can achieve positioning and clamping of the shaft by adjusting the spacing of the clamping plates, when facing shafts of different diameters, the fixed arc surface cannot dynamically adapt to the shaft contour, which can easily lead to gaps or local stress concentration at the clamping interface, causing the shaft to shake in the clamping state. This unstable clamping not only makes it difficult to accurately perform subsequent maintenance operations (such as parts disassembly and precision calibration), but may also prolong maintenance time due to repeated adjustments of the clamping position. Utility Model Content

[0005] The purpose of this invention is to solve the problem of instability when clamping shafts of different diameters using clamping plates in the existing technology, and to propose a shaft positioning device for ship repair and construction.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A shafting positioning device for ship repair and construction includes two positioning rings and two integrated connecting plates. The inner walls of each positioning ring are rotatably connected to a ring cover. Each positioning ring has an installation groove inside and a first through hole in its inner wall. Two damping pads are fixedly connected to the outer surfaces of each positioning ring. A limit mechanism is provided on the exterior of each positioning ring. A set of arc-shaped abutments is provided inside each positioning ring. A friction pad is fixedly connected to the outer surface of each arc-shaped abutment. A positioning post is rotatably connected inside each arc-shaped abutment. The bottom end of each positioning post is fixedly connected to the inner bottom wall of the installation groove. A driving block is fixedly connected to the outer surface of each arc-shaped abutment. A push rod is provided inside each driving block. The top end of each push rod is fixedly connected to a ring cover.

[0008] Preferably, the limiting mechanism includes a threaded rod that passes through the first through hole and is fixedly connected to the ring cover.

[0009] Preferably, the outer surface of the threaded rod is threadedly connected to a threaded rotating plate, and the outer surface of the threaded rotating plate is fixedly connected to an abutment pad, which abuts against two damping pads.

[0010] Preferably, the inner walls of both positioning rings are provided with a set of second through holes, and the outer surfaces of both ring covers are fixedly connected with a set of auxiliary sliders, the outer surface of each auxiliary slider being slidably connected to the inner wall of the second through hole.

[0011] Preferably, the inner bottom walls of both positioning rings are provided with track grooves, the interior of each driving block is provided with an anti-interference groove, each push rod passes through the anti-interference groove and contacts the inner bottom wall of the track groove, and each push rod is in contact with the anti-interference groove.

[0012] Preferably, the outer surfaces of both integrated connecting plates are fixedly connected to two positioning rings. One of the integrated connecting plates has a connecting shaft fixedly connected to its outer surface. The outer surface of the connecting shaft is rotatably connected to a first upright plate. A servo motor is mounted on the outer surface of the first upright plate. The output end of the servo motor is fixedly connected to the connecting shaft. The outer surface of the other integrated connecting plate has a mating rod fixedly connected to its outer surface. One end of the mating rod is rotatably connected to a second upright plate.

[0013] Compared with the prior art, this utility model provides a shafting positioning device for ship repair and construction, which has the following beneficial effects;

[0014] 1. This utility model uses the rotation of the ring cover to drive the push rod to drive the drive block, so that the arc-shaped abutment rod rotates around the positioning column, causing the friction pad to abut against the curved surface of the shaft system in a ring-shaped multi-point manner. It can adapt to the contours of shaft systems with different diameters, avoid local stress concentration at the clamping interface, effectively solve the problem of instability when clamping shaft systems with different diameters with a fixed arc surface in the prior art, reduce shaft system shaking, improve the accuracy of subsequent maintenance operations, and shorten maintenance time.

[0015] 2. This utility model uses a servo motor to drive the connecting shaft and the integrated connecting plate, which can drive the shaft system to rotate. The closed-loop control characteristics of the servo motor are used to achieve precise multi-angle positioning of the shaft system. At the same time, the limiting mechanism uses a threaded rod and a threaded rotating plate to achieve convenient adjustment and locking of the ring cover position. The auxiliary slider cooperates with the second through hole to guide the ring cover to rotate smoothly. The overall structure not only ensures positioning stability, but also allows for flexible adjustment of the shaft system angle according to maintenance needs, which significantly improves the convenience and efficiency of ship shaft system maintenance. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0017] Figure 2 This is a front view of the present invention;

[0018] Figure 3 This is a three-dimensional structural diagram of the concealed first and second vertical plates of this utility model;

[0019] Figure 4 This utility model Figure 3 Enlarged view of point A in the image;

[0020] Figure 5 This is a schematic diagram of the internal structure of the positioning ring of this utility model.

[0021] In the picture:

[0022] 1. Positioning ring; 2. Ring cover; 3. First through hole; 4. Damping pad; 5. Second through hole; 6. Limiting mechanism; 601. Threaded rod; 602. Threaded rotating plate; 603. Abutment pad; 7. Mounting groove; 8. Positioning post; 9. Arc-shaped abutment rod; 10. Friction pad; 11. Drive block; 12. Anti-interference groove; 13. Push rod; 14. Track groove; 15. First upright plate; 16. Servo motor; 17. Connecting shaft; 18. Second upright plate; 19. Matching rod; 20. Integrated connecting plate; 21. Auxiliary slider. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0024] Reference Figure 1-5 A shafting positioning device for ship repair and construction includes two positioning rings 1 and two integrated connecting plates 20. The inner walls of the two positioning rings 1 are rotatably connected with ring covers 2. The interior of the two positioning rings 1 is provided with mounting grooves 7. The inner walls of the two positioning rings 1 are provided with first through holes 3. The outer surfaces of the two positioning rings 1 are fixedly connected with two damping pads 4. Positioning posts 8 are installed on the bottom wall of the mounting grooves 7 to limit the rotation trajectory of the arc-shaped abutment rod 9. The first through holes 3 allow threaded rods 601 to pass through. The damping pads 4 provide frictional damping and enhance positioning stability.

[0025] Both positioning rings 1 are provided with a limiting mechanism 6 on their exterior. The limiting mechanism 6 includes a threaded rod 601, which passes through the first through hole 3 and is fixedly connected to the ring cover 2. The position of the ring cover 2 can be adjusted by moving the threaded rod 601 to adapt to different shaft sizes.

[0026] The outer surface of the threaded rod 601 is threadedly connected to a threaded rotating plate 602. The outer surface of the threaded rotating plate 602 is fixedly connected to an abutment pad 603. The abutment pad 603 abuts against two damping pads 4. Rotating the threaded rotating plate 602 can cause the abutment pad 603 to squeeze the damping pads 4, thereby locking the relative position of the ring cover 2 and the positioning ring 1.

[0027] Both positioning rings 1 are equipped with a set of arc-shaped abutment rods 9 inside. Each arc-shaped abutment rod 9 has a friction pad 10 fixedly connected to its outer surface. Each arc-shaped abutment rod 9 has a positioning post 8 rotatably connected inside. The bottom end of each positioning post 8 is fixedly connected to the inner bottom wall of the mounting groove 7. The arc-shaped abutment rod 9 rotates around the positioning post 8, causing the friction pad 10 to abut against the curved surface of the shaft system in a ring-shaped multi-point position, thereby achieving adaptive clamping.

[0028] Each arc-shaped abutment 9 has a drive block 11 fixedly connected to its outer surface. Each drive block 11 has a push rod 13 inside. The top of each push rod 13 is fixedly connected to the ring cover 2. The ring cover 2 drives the drive block 11 to move along the track groove 14 through the push rod 13. The inner bottom wall of the two positioning rings 1 is provided with a track groove 14. Each drive block 11 has an anti-interference groove 12 inside. Each push rod 13 passes through the anti-interference groove 12 and contacts the inner bottom wall of the track groove 14. Each push rod 13 is in contact with the anti-interference groove 12. The anti-interference groove 12 avoids motion interference and ensures smooth transmission.

[0029] The inner walls of the two positioning rings 1 are provided with a set of second through holes 5. The outer surfaces of the two ring covers 2 are fixedly connected with a set of auxiliary sliders 21. The outer surface of each auxiliary slider 21 is slidably connected to the inner wall of the second through hole 5. The auxiliary sliders 21 cooperate with the second through holes 5 to guide the ring covers 2 to rotate smoothly and improve the operation accuracy.

[0030] The outer surfaces of the two integrated connecting plates 20 are fixedly connected to the two positioning rings 1. A connecting shaft 17 is fixedly connected to the outer surface of one of the integrated connecting plates 20. A first vertical plate 15 is rotatably connected to the outer surface of the connecting shaft 17. A servo motor 16 is mounted on the outer surface of the first vertical plate 15. The output end of the servo motor 16 is fixedly connected to the connecting shaft 17. The servo motor 16 drives the positioning ring 1 to rotate through the connecting shaft 17, realizing multi-angle positioning of the shaft system, which is convenient for maintenance. The servo motor 16 achieves precise positioning through a closed-loop control system (encoder feedback). When the servo motor 16 is powered on and there is no motion command, it will use the controller to maintain the current position and resist external disturbances (such as load torque). This capability is called "servo lock" or "zero speed hold".

[0031] Another integrated connecting plate 20 has a mating rod 19 fixedly connected to its outer surface. One end of the mating rod 19 is rotatably connected to a second vertical plate 18. The mating rod 19 and the second vertical plate 18 are rotatably connected to enhance the overall support stability of the device and ensure reliable positioning.

[0032] Working principle: When the ship's shafting needs to be inspected and positioned, the shafting is vertically passed through two positioning rings 1. By rotating the threaded rotating plate 602, the abutment pad 603 is no longer in contact with the damping pad 4, and the threaded rod 601 can be pulled to rotate the ring cover 2. When the ring cover 2 rotates, it drives a set of push rods 13 to rotate. The push rods 13 can push the drive block 11 to move along the track groove 14. Due to the anti-interference groove 12, the movement of the push rods 13 will not be interfered with. When the drive block 11 moves, it can drive the arc abutment rod 9 to rotate around the center of the positioning column 8, so that a set of friction pads 10 can abut against the shafting at multiple points. By twisting the threaded rotating plate 602 in the opposite direction, the abutment pad 603 can be brought into contact with the damping pad 4, and the positioning of the shafting can be completed. By starting the servo motor 16, the connecting shaft 17 and the integrated connecting plate 20 can be rotated, which can drive the shaft system to rotate. Continuously supplying power to the servo motor 16 can position the shaft system in the longitudinal direction or at any angle, which is convenient for workers to inspect and maintain.

[0033] It should be noted that in the description of this utility model, terms such as "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," which indicate direction or positional relationships, are based on the direction or positional relationships shown in the accompanying drawings. These are used merely for ease of description and do not indicate or imply that the device or element must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on 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.

[0034] The technical solution of this utility model has been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it will be readily understood by those skilled in the art that the protection scope of this utility model is obviously not limited to these specific embodiments. Without departing from the principle of this utility model, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will all fall within the protection scope of this utility model.

Claims

1. A shafting positioning device for ship repair and construction, comprising two positioning rings (1) and two integrated connecting plates (20), characterized in that: The inner walls of the two positioning rings (1) are rotatably connected to ring covers (2), the interior of the two positioning rings (1) is provided with mounting grooves (7), the inner walls of the two positioning rings (1) are provided with first through holes (3), the outer surfaces of the two positioning rings (1) are fixedly connected with two damping pads (4), the exterior of the two positioning rings (1) is provided with limit mechanisms (6), the interior of the two positioning rings (1) is provided with a set of arc-shaped abutments (9), the outer surface of each arc-shaped abutment (9) is fixedly connected with a friction pad (10), the interior of each arc-shaped abutment (9) is rotatably connected with a positioning post (8), the bottom end of each positioning post (8) is fixedly connected to the inner bottom wall of the mounting groove (7), the outer surface of each arc-shaped abutment (9) is fixedly connected with a driving block (11), the interior of each driving block (11) is provided with a push rod (13), and the top end of each push rod (13) is fixedly connected to the ring cover (2).

2. The shafting positioning device for ship repair and construction according to claim 1, characterized in that, The limiting mechanism (6) includes a threaded rod (601), which passes through the first through hole (3) and is fixedly connected to the ring cover (2).

3. A shafting positioning device for ship repair and construction according to claim 2, characterized in that, The outer surface of the threaded rod (601) is threadedly connected to a threaded rotating plate (602), and the outer surface of the threaded rotating plate (602) is fixedly connected to an abutment pad (603), which abuts against two damping pads (4).

4. A shafting positioning device for ship repair and construction according to claim 1, characterized in that, The inner walls of the two positioning rings (1) are provided with a set of second through holes (5), and the outer surfaces of the two ring covers (2) are fixedly connected with a set of auxiliary sliders (21). The outer surface of each auxiliary slider (21) is slidably connected to the inner wall of the second through hole (5).

5. A shafting positioning device for ship repair and construction according to claim 1, characterized in that, The inner bottom walls of the two positioning rings (1) are provided with track grooves (14), and the interior of each driving block (11) is provided with anti-interference grooves (12). Each push rod (13) passes through the anti-interference groove (12) and contacts the inner bottom wall of the track groove (14), and each push rod (13) contacts the anti-interference groove (12).

6. A shafting positioning device for ship repair and construction according to claim 1, characterized in that, The outer surfaces of the two integrated connecting plates (20) are fixedly connected to two positioning rings (1). One of the integrated connecting plates (20) has a connecting shaft (17) fixedly connected to its outer surface. The outer surface of the connecting shaft (17) is rotatably connected to a first upright plate (15). A servo motor (16) is mounted on the outer surface of the first upright plate (15). The output end of the servo motor (16) is fixedly connected to the connecting shaft (17). The outer surface of the other integrated connecting plate (20) has a mating rod (19) fixedly connected to its outer surface. One end of the mating rod (19) is rotatably connected to a second upright plate (18).

Images