Polishing and grinding device for inner wall of reelpipe of ship stern shaft tube

Abstract

The utility model relates to the technical field of pipe fitting grinding, in particular to a ship stern shaft tube reel pipe inner wall polishing and grinding device which comprises a connecting rod, a grinding machine and three supporting frames, the connecting rod can stretch into a stern shaft tube reel pipe, one end of the connecting rod is fixedly connected with a connecting cylinder, the grinding machine is arranged in the connecting cylinder, and the three supporting frames are arranged on the connecting cylinder. The three supporting frames are arranged on the sides, away from the connecting cylinders, of the connecting rods, and the inner side faces of the supporting frames are slidably connected with sliding frames slidably connected with the side faces of the connecting rods. The sliding frames are slidably connected to the inner side face of the supporting frame and can slide up and down along the interior of the supporting frame, the connecting rod can horizontally move along the interiors of the three sliding frames, the grinding machine can stretch into a stern shaft tube reel pipe fitting through the connecting rod, the height of the sliding frames can be adjusted according to needs, and the grinding machine is made to be attached to the inner wall of the pipe fitting. And therefore, the device adapts to grinding of pipe fittings with different diameters, and pipe fitting machining is facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of pipe grinding, in particular to a device for polishing and grinding the inner wall of a ship's stern tube reel. Background Art

[0002] The stern tube of a ship is a key component in the propulsion system of a ship. The stern tube is a tube through which the tail shaft or propeller shaft passes through the hull. It surrounds the propeller shaft and allows the propeller shaft to pass to the outside of the hull. The diameter of some ship stern tubes is relatively large. Generally, it is made of multiple curved arc-shaped plates welded together to form a ship stern tube reel. After the stern tube reel is welded, it is usually necessary to polish and grind the inner wall of the tube to improve the smoothness of the inner part of the tube and remove the excess part of the welding part to make the welding part smoother as a whole. In the polishing and grinding process of the ship stern tube reel, the tube is usually placed on a base with two rods, and the rods are used to support the tube. During the grinding process, the rotation of the rods drives the tube to rotate, and then the inner wall of the tube is fully polished by the grinder. However, the height of the rods is usually fixed, which makes it difficult for the grinding structure to adapt to the grinding of the inner walls of stern tube reels of different diameters, which is not conducive to the processing of the stern tube reel. Utility Model Content

[0003] The purpose of the utility model is to provide a device for polishing and grinding the inner wall of a ship stern tube reel, so as to solve the problems raised in the above background technology.

[0004] To achieve the above objectives, the present invention provides the following technical solutions:

[0005] A device for polishing and grinding the inner wall of a ship stern tube reel comprises a connecting rod, a grinder, and three support frames;

[0006] The connecting rod can extend into the interior of the stern tube reel, and one end of the connecting rod is fixedly connected to the connecting tube;

[0007] The grinder is arranged inside the connecting cylinder;

[0008] The three support frames are arranged on a side of the connecting rod away from the connecting cylinder, and the inner side surfaces of the support frames are slidably connected to a sliding frame which is slidably connected to the side surface of the connecting rod.

[0009] Furthermore, it also includes a power box, which is slidably connected to the top of a side of a support frame, and the side of the power box is fixedly connected to the side of an adjacent sliding frame. A power motor is provided inside the power box, and the output end of the power motor is transmission-connected to a transmission shaft rotatably connected to the inner side of the sliding frame. The side of the transmission shaft is located inside the sliding frame and is fixedly sleeved with a connecting gear, and the inner side of the bottom of the connecting rod is fixedly connected to a rack meshing with the connecting gear.

[0010] Preferably, the bottom surface of the sliding frame is fixedly connected to a screw-on cylinder which is slidably connected to the inner side surface of the support frame, and the inner side surface of the support frame is rotatably connected to a screw-on rod which is screwed to the inner side surface of the screw-on cylinder.

[0011] Furthermore, it includes a linkage rod and two rotating rods, the linkage rod is located between the two rotating rods, the side surface of the linkage rod is rotatably connected to the inner side surface of the bottom of a support frame, and the side surface of the rotating rod is rotatably connected to the inner side surface of the bottom of an adjacent support frame, both ends of the linkage rod are rotatably connected to a transmission rod through an axle rod, one end of the transmission rod is fixedly connected to a rectangular block slidably connected to the inner side surface of the adjacent rotating rod, two bevel gears that mesh with each other are provided on the inner side of the bottom of the support frame, the bottom end of the screwing rod is fixedly sleeved with the adjacent bevel gears, and the linkage rod and the side surfaces of the rotating rod are fixedly sleeved with the adjacent bevel gears.

[0012] Furthermore, a side of the rotating rod away from the linkage rod is fixedly connected to a toggle seat, and one end of the rectangular block is fixedly connected to a stopper in contact with the end of the rotating rod.

[0013] Preferably, two roller seats are provided on the bottom surface of the support frame.

[0014] Furthermore, a base frame is provided at the bottom of the three support frames, the roller seat is located inside the base frame, positioning plates are provided on both sides of the base frame, and the opposite surfaces of the two positioning plates are fixedly connected to several round rods that are slidably connected to the inner side of the base frame.

[0015] Compared with the prior art, the beneficial effects of the present invention are:

[0016] 1. A sliding frame is connected by sliding on the inner side of the support frame. The sliding frame can slide up and down along the inside of the support frame, and the connecting rod can translate along the inside of the three sliding frames. In this way, the grinder can be extended into the inside of the stern tube reel through the connecting rod. The height of the sliding frame can be adjusted as needed so that the grinder is close to the inner wall of the tube. In this way, the device can adapt to the grinding of tubes of different diameters, which is beneficial to the processing of the tubes. The three screwing rods can be linked through the linkage rod and the rotating rod, so that the heights of the three sliding frames can be adjusted at the same time. After the grinding is completed, the three support frames can be brought close to each other so that the transmission rod completely passes through the inside of the rotating rod. At this time, the transmission rod can be rotated relative to the linkage rod so that the transmission rod is close to the side of the support frame, thereby reducing the occupied space and facilitating the storage of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the overall structure of a device for polishing and grinding the inner wall of a ship's stern tube reel of the utility model;

[0018] Figure 2 This is a schematic diagram of the internal structure of the chassis in the present invention from a top view;

[0019] Figure 3 This is a schematic diagram of the internal structure of the support frame in the present invention;

[0020] Figure 4 It is a schematic diagram of the internal side structure of the power box in the utility model.

[0021] In the figure: 1. connecting rod; 11. connecting cylinder; 12. rack; 2. grinder; 3. support frame; 31. sliding frame; 32. roller seat; 33. screwing cylinder; 34. screwing rod; 4. power box; 41. power motor; 42. transmission shaft; 43. connecting gear; 5. base; 51. positioning plate; 52. round rod; 6. linkage rod; 61. transmission rod; 62. rectangular block; 63. stopper; 7. rotating rod; 71. toggle seat; 8. bevel gear. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0023] See also Figure 1-3 In an embodiment of the present invention, a device for polishing and grinding the inner wall of a ship stern tube reel comprises a connecting rod 1, a grinder 2, and three support frames 3;

[0024] The connecting rod 1 can be extended into the interior of the stern tube reel, and one end of the connecting rod 1 is fixedly connected to a connecting tube 11. The grinder 2 is arranged inside the connecting tube 11, and the power cord of the grinder 2 can be stored in the inner side of the top of the connecting rod 1;

[0025] The three support frames 3 are arranged on the side of the connecting rod 1 away from the connecting tube 11. The inner side surface of the support frame 3 is slidably connected to a sliding frame 31 that is slidably connected to the side surface of the connecting rod 1. The sliding frame 31 can slide up and down along the inside of the support frame 3, and the connecting rod 1 can translate along the inside of the three sliding frames 31. The bottom surface of the sliding frame 31 is fixedly connected to a screw-on tube 33 that is slidably connected to the inner side surface of the support frame 3. The inner side surface of the support frame 3 is rotatably connected to a screw-on rod 34 that is screwed together with the inner side surface of the screw-on tube 33. The screw-on rod 34 can limit the height of the sliding frame 31 through the screw-on tube 33, thereby limiting the height of the connecting rod 1.

[0026] Specifically, after the grinder 2 is extended into the interior of the stern tube reel through the connecting rod 1, the screwing rod 34 can be rotated to make the screwing cylinder 33 move up and down along the screwing rod 34. The screwing rod 34 can drive the sliding frame 31 to move, thereby adjusting the height of the connecting rod 1 as needed, and then adjusting the height of the grinder 2 so that the grinding disc of the grinder 2 is close to the inner wall of the pipe fitting. This can adapt to the grinding of pipe fittings of different diameters and is conducive to the processing of pipe fittings.

[0027] Example 1

[0028] like Figure 4 As shown, in this embodiment, the polishing and grinding device for the inner wall of the stern tube reel of a ship also includes a power box 4, which is slidably connected to the top of a side of a support frame 3, and the power box 4 is located on the middle support frame 3. The side of the power box 4 is fixedly connected to the side of the adjacent sliding frame 31, and a power motor 41 is provided inside the power box 4. The output end of the power motor 41 is transmission-connected to a transmission shaft 42 that is rotationally connected to the inner side of the sliding frame 31. The side of the transmission shaft 42 is located inside the sliding frame 31 and is fixedly sleeved with a connecting gear 43. The inner side of the bottom of the connecting rod 1 is fixedly connected to a rack 12 that meshes with the connecting gear 43.

[0029] During specific implementation, when the grinder 2 grinds the inner wall of the pipe, the power motor 41 can drive the transmission shaft 42 to rotate, the transmission shaft 42 can drive the connecting gear 43 to rotate, and the connecting gear 43 can move the rack 12, thereby moving the connecting rod 1. In this way, the grinder 2 can be gradually extended into the interior of the pipe through the connecting rod 1, and then various positions of the inner wall of the pipe can be gradually grinded, and the inner wall of the pipe can be polished more comprehensively.

[0030] like Figure 3 As shown, in this embodiment, the polishing and grinding device for the inner wall of the stern shaft tube reel of a ship also includes a linkage rod 6 and two rotating rods 7. The linkage rod 6 is located between the two rotating rods 7. The side of the linkage rod 6 is rotatably connected to the inner side surface of the bottom of one support frame 3, and the side of the rotating rod 7 is rotatably connected to the inner side surface of the bottom of the adjacent support frame 3. The linkage rod 6 is located at the bottom of the middle support frame 3, and the two rotating rods 7 are respectively located at the bottom of the support frames 3 on both sides. Both ends of the linkage rod 6 are rotatably connected to the transmission rod 61 through the shaft rod. One end of the transmission rod 61 is fixedly connected to a rectangular block 62 that is slidably connected to the inner side surface of the adjacent rotating rod 7. A rectangular groove is opened inside the rotating rod 7 that is slidably connected to the rectangular block 62. Two bevel gears 8 that mesh with each other are provided on the inner side of the bottom of the support frame 3. The bottom end of the screwing rod 34 is fixedly sleeved with the adjacent bevel gears 8. The side surfaces of the linkage rod 6 and the rotating rod 7 are fixedly sleeved with the adjacent bevel gears 8. The side of the rotating rod 7 away from the linkage rod 6 is fixedly connected with a toggle seat 71, and one end of the rectangular block 62 is fixedly connected with a stopper 63 that contacts the end of the rotating rod 7.

[0031] During specific implementation, a toggle seat 71 can be rotated, and a toggle seat 71 can drive a rotating rod 7 to rotate. A rotating rod 7 can drive a transmission rod 61 to rotate through the rectangular block 62 and the rectangular groove. The transmission rod 61 can drive the linkage rod 6 to rotate. The linkage rod 6 can drive another rotating rod 7 to rotate through another transmission rod 61 and the rectangular block 62, so that the linkage rod 6 and the two rotating rods 7 rotate synchronously. The linkage rod 6 can drive the screwing rod 34 at the top thereof to rotate through the two adjacent bevel gears 8, and the rotating rod 7 can drive the screwing rod 34 at the top thereof to rotate through the two adjacent bevel gears 8, so that the three rotating rods 7 can rotate synchronously. The coupling rod 34 rotates synchronously, causing the screwing cylinder 33 to move up and down along the screwing rod 34, so that the heights of the three sliding frames 31 can be adjusted at the same time, thereby smoothly adjusting the height of the connecting rod 1, and after the grinding is completed, the three support frames 3 can be brought close to each other. At this time, the stopper 63 will be disengaged from the end of the rotating rod 7, and the rectangular block 62 will move out of the inside of the rotating rod 7, and the transmission rod 61 will gradually pass through the inside of the rotating rod 7. At this time, the transmission rod 61 can be rotated relative to the linkage rod 6 so that the transmission rod 61 is attached to the side of the support frame 3, and the transmission rod 61 and the linkage rod 6 are folded to reduce the occupied space and facilitate the storage of the device.

[0032] Example 2

[0033] Based on the first embodiment, Figure 2 As shown, in this embodiment, two roller seats 32 are provided on the bottom surface of the support frame 3. The roller seats 32 facilitate the movement of the support frame 3 and the adjustment of the position of the connecting rod 1. A base frame 5 is provided at the bottom of the three support frames 3. The roller seats 32 are located inside the base frame 5. Positioning plates 51 are provided on both sides of the base frame 5. The opposite surfaces of the two positioning plates 51 are fixedly connected to a number of round rods 52 that are slidably connected to the inner side surface of the base frame 5.

[0034] During specific implementation, after the roller seat 32 is moved to the inside of the base frame 5, the round rod 52 can be inserted into the inside of the base frame 5. The two round rods 52 in the middle can limit the position of the middle roller seat 32, and the round rods 52 on both sides can prevent the roller seats 32 on both sides from moving toward the middle of the base frame 5. At the same time, the block 63 can be against the end of the rotating rod 7 to prevent the rotating rod 7 from moving away from the linkage rod 6. In this way, the three support frames 3 can be restricted inside the base frame 5, thereby fixing the position of the device.

[0035] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the present invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be encompassed within the present invention. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

[0036] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. A device for polishing and grinding the inner wall of a ship's stern tube reel, characterized in that: include: A connecting rod (1) is capable of extending into the interior of the stern tube reel, and one end of the connecting rod (1) is fixedly connected to a connecting tube (11); A grinder (2) is arranged inside the connecting cylinder (11); Three support frames (3) are arranged on a side of the connecting rod (1) away from the connecting tube (11), and the inner side surfaces of the support frames (3) are slidably connected to a sliding frame (31) which is slidably connected to the side surface of the connecting rod (1).

2. The device for polishing and grinding the inner wall of a ship stern tube reel according to claim 1, characterized in that: The invention also includes a power box (4), which is slidably connected to the top of a side of a support frame (3), and the side of the power box (4) is fixedly connected to the side of an adjacent sliding frame (31). A power motor (41) is provided inside the power box (4), and the output end of the power motor (41) is connected to a transmission shaft (42) that is rotatably connected to the inner side of the sliding frame (31). The side of the transmission shaft (42) is located inside the sliding frame (31) and is fixedly sleeved with a connecting gear (43). The inner side of the bottom of the connecting rod (1) is fixedly connected to a rack (12) that meshes with the connecting gear (43).

3. The device for polishing and grinding the inner wall of a ship stern tube reel according to claim 1, characterized in that: The bottom surface of the sliding frame (31) is fixedly connected with a screw-on cylinder (33) which is slidably connected to the inner side surface of the support frame (3); the inner side surface of the support frame (3) is rotatably connected with a screw-on rod (34) which is screw-connected to the inner side surface of the screw-on cylinder (33).

4. The device for polishing and grinding the inner wall of a ship stern tube reel according to claim 3, characterized in that: The invention also includes a linkage rod (6) and two rotating rods (7). The linkage rod (6) is located between the two rotating rods (7). The side surface of the linkage rod (6) is rotatably connected to the inner side surface of the bottom of a support frame (3), and the side surface of the rotating rod (7) is rotatably connected to the inner side surface of the bottom of an adjacent support frame (3). Both ends of the linkage rod (6) are rotatably connected to a transmission rod (61) through a shaft rod. One end of the transmission rod (61) is fixedly connected to a rectangular block (62) slidably connected to the inner side surface of the adjacent rotating rod (7). Two mutually meshing bevel gears (8) are provided on the inner side of the bottom of the support frame (3). The bottom end of the screwing rod (34) is fixedly sleeved with the adjacent bevel gears (8). The side surfaces of the linkage rod (6) and the rotating rod (7) are fixedly sleeved with the adjacent bevel gears (8).

5. The device for polishing and grinding the inner wall of a ship stern tube reel according to claim 4, characterized in that: A side of the rotating rod (7) away from the linkage rod (6) is fixedly connected to a toggle seat (71), and one end of the rectangular block (62) is fixedly connected to a stopper (63) in contact with the end of the rotating rod (7).

6. The device for polishing and grinding the inner wall of a ship stern tube reel according to claim 1, characterized in that: Two roller seats (32) are provided on the bottom surface of the support frame (3).

7. The device for polishing and grinding the inner wall of a ship stern tube reel according to claim 6, characterized in that: A base frame (5) is provided at the bottom of the three support frames (3), the roller seat (32) is located inside the base frame (5), positioning plates (51) are provided on both sides of the base frame (5), and the opposite surfaces of the two positioning plates (51) are fixedly connected to a plurality of round rods (52) that are slidably connected to the inner side surface of the base frame (5).

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