Rust removal equipment for anticorrosive coating of ship pipeline

Abstract

The utility model provides a derusting equipment for the anticorrosive coating of ship pipeline, including driving mechanism, multistage connecting rod, first derusting mechanism, second derusting mechanism, polishing mechanism and roller, the multistage connecting rod is assembled on the driving mechanism, the first derusting mechanism, the second derusting mechanism and the polishing mechanism are assembled on the multistage connecting rod in order from front to back, the roller is assembled on the first derusting mechanism, the second derusting mechanism and the polishing mechanism. Rollers are assembled on the non-rotating outer walls of the driving mechanism, the polishing mechanism and the first rust removal mechanism. Preliminary rust removal is conducted on the inner wall of the pipeline through the first rust removal mechanism, then the second rust removal mechanism conducts reciprocating motion on the multi-stage connecting rod to conduct reciprocating rust removal on the inner wall of the pipeline, finally the polishing mechanism conducts polishing and grinding on the inner wall of the pipeline, and fine scratches generated by polishing and brushing of rust removal wheels on the inner wall of the pipeline are removed. And high-quality and high-efficiency rust removal on the inner wall of the ship pipeline is realized. The device is easy and convenient to operate and convenient to disassemble, assemble and maintain, the rust removal efficiency and quality are effectively improved, the maintenance cost is reduced, and normal work of a pipeline system is ensured.

Description

TECHNICAL FIELD

[0001] The utility model relates to the device in the technical field of pipeline rust removal, especially a rust removal equipment for ship pipeline anticorrosive coating. BACKGROUND

[0002] The rust removal work of the ship pipeline is usually completed by professional workers using special rust removal equipment. The workers clean the rust, oil stains and the like on the inner wall of the pipeline by grinding, sand blasting, pickling and the like. When rust removal is performed by the grinding method, although the rust can be effectively removed, micro scratches on the metal surface can be caused at the same time, and the scratches can become new corrosion points, thereby causing the rust to be more serious and greatly reducing the rust removal quality. In order to achieve an ideal rust removal effect, the same pipeline usually needs to be cleaned multiple times using the rust removal equipment, so that the rust removal operation takes a long time and the rust removal efficiency is low.

[0003] Therefore, how to avoid new corrosion points after the rust removal operation and improve the rust removal efficiency and quality has become a problem to be solved. SUMMARY

[0004] In order to be able to perform high-quality and high-efficiency rust removal on the inner wall of the ship pipeline, the utility model provides a rust removal equipment for ship pipeline anticorrosive coating. The device is provided with a first rust removal mechanism, a second rust removal mechanism and a polishing mechanism on a multi-stage connecting rod directly connected with a driving mechanism. The first rust removal mechanism is used for preliminary rust removal, the second rust removal mechanism is used for reciprocating rust removal, and the polishing mechanism is used for polishing and grinding the inner wall of the pipeline, so that the technical problem that new corrosion points are easily generated on the inner wall of the pipeline after the traditional grinding rust removal operation is solved.

[0005] The utility model adopts the following solutions to solve the technical problem:

[0006] A rust removal equipment for ship pipeline anticorrosive coating, comprising a driving mechanism, a front end of which is provided with an opening for installation and a rear end of which is sealed, so as to provide driving force for the equipment; a multi-stage connecting rod, which is assembled at the opening of the driving mechanism and is used for conducting the driving force generated by the driving mechanism; a polishing mechanism, which is assembled at the rear end of the multi-stage connecting rod and is arranged close to the driving mechanism; a first rust removal mechanism, which is assembled at the front end of the multi-stage connecting rod and is arranged away from the driving mechanism, and is used for preliminary rust removal of the pipeline wall; a second rust removal mechanism, which is inserted between the polishing mechanism and the first rust removal mechanism and can reciprocate therebetween, and is used for reciprocating rust removal of the pipeline wall; and a roller, which is assembled on the non-rotating outer wall of the driving mechanism, the polishing mechanism and the first rust removal mechanism, and is used for assisting the movement of the equipment and limiting the axial rotation of the equipment.

[0007] The driving mechanism disclosed in this embodiment includes a first tube body with a cylindrical structure design, an open front end, and a mounting groove at the rear end; a driving motor, which is assembled in the mounting groove of the first tube body, with its output end arranged forward; and a rotary joint, which is fixed to the periphery of the output end of the driving motor, and has a mounting hole for inserting a water pipe on its side wall.

[0008] The multi-stage connecting rod disclosed in this embodiment includes a reciprocating threaded rod, rotatably assembled inside the rotary joint, directly connected to the output end of the drive motor, with a water passage hole at its rear end, and reciprocating threads machined on its outer wall; a protruding rod, fixed to the front end of the reciprocating threaded rod; a round rod, fixed to the front end of the protruding rod; and a water passage groove, opened inside the multi-stage connecting rod, connecting the front end space of the round rod and the rear end space of the reciprocating threaded rod along its axis, and communicating with the water passage hole.

[0009] The first rust removal mechanism disclosed in this embodiment includes a first rust removal wheel, which is assembled on the front end of the round rod and has a first cross notch inside that communicates with the water channel; and a second tube, which is mounted on the round rod by a bearing and has its front end spaced apart from the first rust removal wheel.

[0010] The second rust removal mechanism disclosed in this embodiment includes a second rust removal wheel, which is mounted on the protrusion rod; a third tube body, which is fixedly disposed on the front and rear sides of the second rust removal wheel and slidably connected to the inner walls of the first rust removal mechanism and the polishing mechanism; a sealing frame, whose front end is inserted into the second rust removal wheel and whose rear end is fixedly connected to the inner wall of the polishing mechanism; and a positioning frame, whose front end is inserted into the second rust removal wheel, whose rear end is fitted onto the reciprocating threaded rod, and whose lower end is clamped onto the inner wall of the polishing mechanism.

[0011] The second rust-removing wheel disclosed in this embodiment includes a first annular groove, which is formed on the rear outer wall of the second rust-removing wheel and arranged around the axis of the second rust-removing wheel as the center point; a second annular groove, which is coaxially formed on the inner side of the first annular groove and has an L-shaped vertical cross section on one side; and a second cross notch, which is formed inside the second rust-removing wheel and connects the inner space of the first annular groove with the outer space of the second rust-removing wheel.

[0012] The sealing frame disclosed in this embodiment includes an outer shell that is inserted into the first annular groove and has an installation hole for inserting a water pipe on its rear outer wall; an inner shell that is fixed to the inner side of the outer shell and arranged coaxially with the outer shell; and a telescopic frame that has its front end fixed to the rear outer wall of the inner shell and its rear end fixedly connected to the inner wall of the polishing mechanism.

[0013] The polishing mechanism disclosed in this embodiment includes a polishing wheel, which is assembled at the rear end of the reciprocating threaded rod and is spaced apart from the front end of the first tube. A third cross notch communicating with the water passage hole is provided inside the polishing wheel. A fourth tube is spaced apart in front of the polishing wheel and is fixedly connected to the telescopic frame. A positioning groove is provided on the lower inner wall of the fourth tube along the traveling direction of the positioning frame.

[0014] The positioning frame disclosed in this embodiment includes a limiting rod with an L-shaped structure, which is inserted into the second annular groove; an L-shaped frame body, one end of which is fixedly connected to the rear end of the limiting rod, and the other end of which is snapped onto the positioning groove; and a collar, which is fitted onto the reciprocating threaded rod and fixedly connected to the upper rear end of the L-shaped frame body.

[0015] Positive effects:

[0016] This invention assembles a multi-stage connecting rod on a drive mechanism, a polishing mechanism at the rear end of the multi-stage connecting rod, a first rust removal mechanism at the front end of the multi-stage connecting rod, and a second rust removal mechanism inserted between the polishing mechanism and the first rust removal mechanism. Rollers are mounted on the non-rotating outer walls of the drive mechanism, polishing mechanism, and first rust removal mechanism. The first rust removal mechanism performs preliminary rust removal on the inner wall of the pipe. Then, the second rust removal mechanism reciprocates on the multi-stage connecting rod, performing reciprocating rust removal on the inner wall of the pipe. Finally, the polishing mechanism polishes and grinds the inner wall of the pipe, removing the micro-scratches caused by the brushing of the rust removal wheels, achieving high-quality and high-efficiency rust removal of the inner wall of ship pipelines. This device is simple and convenient to operate, easy to disassemble and maintain, effectively improving rust removal efficiency and quality, reducing rust removal workload, lowering maintenance costs, and ensuring the normal operation of the pipeline system. It is suitable as a rust removal device for anti-corrosion coating of ship pipelines. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of an embodiment of this application;

[0018] Figure 2 This is a schematic diagram of a multi-stage linkage structure according to an embodiment of this application;

[0019] Figure 3 This is a cross-sectional view of the drive mechanism, polishing mechanism, and first rust removal mechanism in an embodiment of this application;

[0020] Figure 4 This is a partial structural cross-sectional view of the second rust removal mechanism in an embodiment of this application;

[0021] Figure 5 This is a schematic diagram of the sealing frame structure of the second rust removal mechanism in an embodiment of this application.

[0022] In the picture,

[0023] 100. Drive mechanism,

[0024] 110. First tube body; 120. Drive motor; 130. Rotary joint;

[0025] 200. Multi-stage linkage,

[0026] 210. Reciprocating threaded rod; 211. Water passage hole; 220. Protrusion rod; 230. Round rod; 240. Water passage groove;

[0027] 300. First rust removal unit,

[0028] 310. First rust-removing wheel; 311. First cross notch; 320. Second pipe body;

[0029] 400. Second rust removal unit,

[0030] 410. Second rust-removing wheel; 411. First annular groove; 412. Second annular groove; 413. Second cross notch.

[0031] 420.The third tube body,

[0032] 430. Sealing frame, 431. Outer shell, 432. Inner shell, 433. Telescopic frame,

[0033] 440. Positioning frame; 441. Limiting rod; 442. L-shaped frame; 443. Collar;

[0034] 500. Polishing mechanism,

[0035] 510. Polishing wheel; 511. Third cross notch; 520. Fourth tube body; 521. Positioning groove;

[0036] 600. Roller. Detailed Implementation

[0037] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0038] As shown in the figure, a rust removal device for anti-corrosion coating of marine pipelines includes:

[0039] The drive mechanism 100 has an opening at its front end for installation and is sealed at its rear end, providing driving force for the equipment. A multi-stage connecting rod 200 is mounted at the opening of the drive mechanism 100 to transmit the driving force generated by the drive mechanism 100. A polishing mechanism 500 is mounted at the rear end of the multi-stage connecting rod 200 and is positioned close to the drive mechanism 100. A first rust removal mechanism 300 is mounted at the front end of the multi-stage connecting rod 200 and is positioned away from the drive mechanism 100, used for preliminary rust removal of the pipe wall. A second rust removal mechanism 400 is inserted between the polishing mechanism 500 and the first rust removal mechanism 300 and can reciprocate between them, used for reciprocating rust removal of the pipe wall. A roller 600 is mounted on the non-rotating outer wall of the drive mechanism 100, the polishing mechanism 500, and the first rust removal mechanism 300, used to assist equipment movement and limit the axial rotation of the equipment.

[0040] Specifically, the drive mechanism 100 has an opening at its front end for mounting other components, and its rear end is completely sealed, providing driving force for the equipment; the rear end of the multi-stage connecting rod 200 is directly connected to the opening at the front end of the drive mechanism 100, for transmitting the driving force generated by the drive mechanism 100; the polishing mechanism 500 is fitted to the rear end of the multi-stage connecting rod 200 via a keyway, and is arranged close to the gap of the drive mechanism 100; the first rust removal mechanism 300 is fitted to the front end of the multi-stage connecting rod 200 via a keyway, and is arranged away from the drive mechanism 100. The first rust removal mechanism 400 is used to perform preliminary rust removal on the inner wall of the pipe to be rusted; the second rust removal mechanism 400 is movably inserted between the polishing mechanism 500 and the first rust removal mechanism 300, and can reciprocate between the two, and is used to perform reciprocating rust removal on the inner wall of the pipe to be rusted; the roller 600 is fixedly assembled to the non-rotating outer wall of the driving mechanism 100, the polishing mechanism 500 and the first rust removal mechanism 300 by welding, and is used to assist the equipment in moving and guide the direction of equipment movement before rust removal, and to limit the axial rotation of the equipment in the pipe during rust removal.

[0041] The drive mechanism 100 includes a first tube 110, which has a cylindrical structure with an opening at the front end and a mounting groove at the rear end; a drive motor 120, which is assembled in the mounting groove of the first tube 110 and has its output end facing forward; and a rotary joint 130, which is fixed around the output end of the drive motor 120 and has a mounting hole on its side wall for inserting a water pipe.

[0042] Specifically, the first pipe body 110 has a cylindrical structure with an opening at the front end and an installation groove on the inner wall at the rear end; the drive motor 120 is assembled in the installation groove of the first pipe body 110 by bolt connection, and the rotation axis of its output end is arranged forward; the rotary joint 130 is fixedly set on the periphery of the output end of the drive motor 120 by snap-fit, and an installation hole for inserting water pipe is opened on its side wall.

[0043] The multi-stage connecting rod 200 includes a reciprocating threaded rod 210, which is rotatably mounted inside the rotary joint 130 and directly connected to the output end of the drive motor 120. A water passage hole 211 is provided at its rear end, and reciprocating threads are machined on its outer wall. A protruding rod 220 is fixed to the front end of the reciprocating threaded rod 210. A round rod 230 is fixed to the front end of the protruding rod 220. A water passage groove 240 is opened inside the multi-stage connecting rod 200, which connects the front end space of the round rod 230 and the rear end space of the reciprocating threaded rod 210 along its axis and communicates with the water passage hole 211.

[0044] Specifically, the reciprocating threaded rod 210 is rotatably assembled inside the rotary joint 130 and directly connected to the output shaft of the drive mechanism 100. A water passage hole 211 is formed at its rear end along the outer wall of the rod to the rod axis. A reciprocating thread is machined on a portion of the outer wall of the rod in its middle section. The protruding rod 220 is fixedly welded to the front end of the reciprocating threaded rod 210, and the round rod 230 is fixedly welded to the front end of the protruding rod 220. The reciprocating threaded rod 210, the protruding rod 220, and the round rod 230 are coaxially connected. A water passage groove 240 is formed inside the multi-stage connecting rod 200, passing through the reciprocating threaded rod 210, the protruding rod 220, and the round rod 230. It connects the front end space of the round rod 230 and the rear end space of the reciprocating threaded rod 210 along the axis of the multi-stage connecting rod 200 and communicates with the water passage hole 211.

[0045] The first rust removal mechanism 300 includes a first rust removal wheel 310, which is mounted on the front end of the round rod 230 and has a first cross notch 311 inside that communicates with the water channel 240; and a second tube 320, which is mounted on the round rod 230 by bearings and has its front end spaced apart from the first rust removal wheel 310.

[0046] Specifically, the first rust-removing wheel 310 is fitted to the front end of the round rod 230 via a keyway. The round rod 230 drives the first rust-removing wheel 310 to rotate and perform preliminary rust removal on the inner wall of the pipe to be rusted. The first rust-removing wheel 310 has a first cross notch 311 inside that communicates with the water channel 240. The water pipe inserted into the rotary joint 130 delivers water sequentially through the water channel 240 and the first cross notch 311 to the outer wall of the first rust-removing wheel 310, effectively reducing the friction and grinding dust between the first rust-removing wheel 310 and the inner wall of the pipe. The second pipe body 320 has a cylindrical structure with an open rear end and a bearing mounted on the round rod 230 at the front end, with a gap between it and the first rust-removing wheel 310.

[0047] The second rust removal mechanism 400 includes a second rust removal wheel 410, which is mounted on the protrusion rod 220; a third tube 420, which is fixed on the front and rear sides of the second rust removal wheel 410 and is slidably connected to the inner walls of the first rust removal mechanism 300 and the polishing mechanism 500; a sealing frame 430, whose front end is inserted into the second rust removal wheel 410 and whose rear end is fixedly connected to the inner wall of the polishing mechanism 500; and a positioning frame 440, whose front end is inserted into the second rust removal wheel 410, whose rear end is fitted onto the reciprocating threaded rod 210, and whose lower end is clamped onto the inner wall of the polishing mechanism 500.

[0048] Specifically, the second rust-removing wheel 410 is snapped onto the protrusion rod 220, and the protrusion rod 220 drives the second rust-removing wheel 410 to rotate and reciprocate to remove rust from the inner wall of the pipe to be removed; the third pipe body 420 is fixedly installed on the front and rear sides of the second rust-removing wheel 410 by welding, and is slidably connected to the inner walls of the first rust-removing mechanism 300 and the polishing mechanism 500, and can move freely between them; the front end of the sealing frame 430 is sealed and inserted into the second rust-removing wheel 410. The rear end is fixedly connected to the inner wall of the polishing mechanism 500 by welding; the front end of the positioning frame 440 is inserted into the second rust removal wheel 410, and the rear end is fitted onto the reciprocating threaded rod 210, driving the positioning frame 440 to reciprocate on the reciprocating threaded rod 210, thereby driving the second rust removal mechanism 400 to reciprocate; the lower end of the positioning frame 440 is clamped onto the inner wall of the polishing mechanism 500 to limit the axial rotation of the positioning frame 440 on the reciprocating threaded rod 210.

[0049] The second rust-removing wheel 410 includes a first annular groove 411, which is formed on the rear outer wall of the second rust-removing wheel 410 and arranged around the axis of the second rust-removing wheel 410; a second annular groove 412, which is coaxially formed on the inner side of the first annular groove 411 and has an L-shaped vertical cross section on one side; and a second cross notch 413, which is formed inside the second rust-removing wheel 410 and connects the internal space of the first annular groove 411 with the external space of the second rust-removing wheel 410.

[0050] Specifically, the first annular groove 411 is formed on the rear outer wall of the second rust-removing wheel 410, and is arranged around the axis of the second rust-removing wheel 410 with a large outer diameter. The second annular groove 412 is coaxially formed on the inner side of the first annular groove 411, with a smaller outer diameter. Its opening direction is the same as that of the first annular groove 411, both facing the rear end of the equipment, and its single-sided vertical cross section is L-shaped. The second cross notch 413 is formed inside the second rust-removing wheel 410, connecting the internal space of the first annular groove 411 with the external space of the second rust-removing wheel 410.

[0051] The sealing frame 430 includes an outer shell 431, which is inserted into the first annular groove 411 and has an installation hole for inserting a water pipe on its rear outer wall; an inner shell 432, which is fixed to the inner side of the outer shell 431 and is arranged coaxially with the outer shell 431; and a telescopic frame 433, whose front end is fixed to the rear outer wall of the inner shell 432 and whose rear end is fixedly connected to the inner wall of the polishing mechanism 500.

[0052] Specifically, the outer shell 431 is inserted into the first annular groove 411, and its outer diameter is adapted to the outer diameter of the first annular groove 411. An installation hole for inserting a water pipe is provided on its rear vertical outer wall. The water pipe inserted into the side wall of the outer shell 431 delivers water sequentially through the first annular groove 411 and the second cross notch 413 to the outer wall of the second rust-removing wheel 410, effectively reducing the friction and grinding dust between the second rust-removing wheel 410 and the inner wall of the pipe. The inner shell 432 is fixedly disposed inside the outer shell 431 by welding, coaxially arranged with the outer shell 431, and its inner diameter is... The sealing frame 430 is adapted to the inner diameter of the first annular groove 411, so that it can be sealed and inserted into the first annular groove 411 of the second rust removal wheel 410, preventing the lubricating liquid in the first annular groove 411 from flowing into the equipment. The front end of the telescopic frame 433 is fixedly set on the rear vertical outer wall of the inner housing 432 by welding, and the rear end is fixedly connected to the inner wall of the polishing mechanism 500 by welding. The telescopic frame 433 can synchronously extend and retract with the reciprocating motion of the second rust removal mechanism 400, so that the sealing frame 430 is always sealed and inserted into the first annular groove 411.

[0053] The polishing mechanism 500 includes a polishing wheel 510, which is mounted on the rear end of the reciprocating threaded rod 210 and is spaced apart from the front end of the first tube 110. A third cross notch 511 communicating with the water passage 211 is provided inside the wheel 510. A fourth tube 520 is spaced apart in front of the polishing wheel 510 and is fixedly connected to the telescopic frame 433. A positioning groove 521 is provided on the lower inner wall of the fourth tube 520 along the traveling direction of the positioning frame 440.

[0054] Specifically, the polishing wheel 510 is fitted to the rear end of the reciprocating threaded rod 210 via a keyway, and is spaced apart from the front end of the first pipe body 110. The reciprocating threaded rod 210 drives the polishing wheel 510 to rotate and polish the inner wall of the pipe after rust removal, removing the micro-scratches caused by the rust removal wheel. The polishing wheel 510 has a third cross notch 511 inside that communicates with the water passage hole 211. The water pipe inserted into the rotary joint 130 delivers water sequentially through the water passage groove 240, the water passage hole 211, and the third cross notch 511 to the polishing wheel. On the outer wall of the polishing wheel 510, the friction and polishing dust between the polishing wheel 510 and the inner wall of the pipe are effectively reduced; the fourth tube body 520 is gapped on the front side of the polishing wheel 510 and is fixedly connected to the telescopic frame 433 by welding. The positioning groove 521 is opened on the lower side of the inner wall of the fourth tube body 520 along the traveling direction of the positioning frame 440. The size of the positioning groove 521 is adapted to the size of the lower end of the positioning frame 440, so that the lower end of the positioning frame 440 can be locked in it to limit the axial rotation of the positioning frame 440 on the reciprocating threaded rod 210.

[0055] The positioning frame 440 includes a limiting rod 441, which has an L-shaped structure and is inserted into the second annular groove 412; an L-shaped frame body 442, one end of which is fixedly connected to the rear end of the limiting rod 441, and the other end of which is snapped onto the positioning groove 521; and a collar 443, which is fitted onto the reciprocating threaded rod 210 and fixedly connected to the upper rear end of the L-shaped frame body 442.

[0056] Specifically, the limiting rod 441 has an L-shaped structure, with one end inserted into the second annular groove 412 and capable of driving the second rust removal mechanism 400 to move, and the other end extending to the rear side of the second annular groove 412; one end of the L-shaped frame 442 is fixedly connected to the rear end of the limiting rod 441 by welding, and the other end is clamped onto the positioning groove 521, thereby restricting the axial rotation of the positioning frame 440 on the reciprocating threaded rod 210; the collar 443 is fitted onto the reciprocating threaded rod 210 and reciprocates on it following the rotation of the reciprocating threaded rod 210, and its lower end is fixedly connected to the upper rear end of the L-shaped frame 442 by welding, thereby driving the second rust removal mechanism 400 to reciprocate on the reciprocating threaded rod 210.

[0057] Features of this utility model:

[0058] This invention assembles a multi-stage connecting rod 200 on a drive mechanism 100, a polishing mechanism 500 at the rear end of the multi-stage connecting rod 200, a first rust removal mechanism 300 at the front end of the multi-stage connecting rod 200, and a second rust removal mechanism 400 inserted between the polishing mechanism 500 and the first rust removal mechanism 300. Rollers 600 are mounted on the non-rotating outer walls of the drive mechanism 100, the polishing mechanism 500, and the first rust removal mechanism 300. The first rust removal mechanism 300 performs preliminary rust removal on the inner wall of the pipe. Then, the second rust removal mechanism 400 reciprocates on the multi-stage connecting rod 200, performing reciprocating rust removal on the inner wall of the pipe. Finally, the polishing mechanism 500 polishes and grinds the inner wall of the pipe, removing the micro-scratches caused by the brushing of the rust removal wheels, achieving high-quality and high-efficiency rust removal of the inner wall of ship pipelines. This device is simple and convenient to operate, easy to disassemble and maintain, effectively improving rust removal efficiency and quality, reducing rust removal workload, lowering maintenance costs, and ensuring the normal operation of the pipeline system.

[0059] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A rust removal device for anti-corrosion coating of ship pipelines, characterized in that: The drive mechanism (100) has an opening at the front end for installation and a sealed rear end, which can provide driving force for the equipment; A multi-stage linkage (200) is assembled at the opening of the drive mechanism (100) to transmit the driving force generated by the drive mechanism (100); The polishing mechanism (500) is mounted on the rear end of the multi-stage linkage (200) and arranged close to the drive mechanism (100); The first rust removal mechanism (300) is assembled at the front end of the multi-stage connecting rod (200) and arranged away from the drive mechanism (100) for preliminary rust removal of the pipe wall; The second rust removal mechanism (400) is inserted between the polishing mechanism (500) and the first rust removal mechanism (300), and can reciprocate between the two to reciprocate rust removal from the pipe wall; Roller (600) is mounted on the non-rotating outer wall of the drive mechanism (100), the polishing mechanism (500) and the first rust removal mechanism (300) to assist the movement of the equipment and limit the axial rotation of the equipment.

2. The rust removal equipment for anti-corrosion coating of ship pipelines according to claim 1, characterized in that: The drive mechanism (100) includes, The first tube (110) has a cylindrical structure design with an opening at the front end and an installation groove at the rear end; The drive motor (120) is installed in the mounting slot of the first tube (110), and its output end is arranged forward; A rotary joint (130) is fixed around the output end of the drive motor (120), and an installation hole for inserting a water pipe is provided on its side wall.

3. The rust removal equipment for anti-corrosion coating of ship pipelines according to claim 2, characterized in that: The multi-stage linkage (200) includes, A reciprocating threaded rod (210) is rotatably assembled inside the rotary joint (130) and directly connected to the output end of the drive motor (120). A water passage hole (211) is provided at its rear end, and a reciprocating thread is machined on the outer wall of the rod. A protrusion rod (220) is fixed to the front end of the reciprocating threaded rod (210); A round rod (230) is fixed to the front end of the protrusion rod (220); A water channel (240) is formed inside the multi-stage connecting rod (200), connecting the front end space of the round rod (230) and the rear end space of the reciprocating threaded rod (210) along its axis, and communicating with the water channel (211).

4. The rust removal equipment for anti-corrosion coating of ship pipelines according to claim 3, characterized in that: The first rust removal mechanism (300) includes, The first rust removal wheel (310) is mounted on the front end of the round rod (230), and a first cross notch (311) is provided inside to communicate with the water channel (240). The second tube (320) is mounted on the round rod (230) via a bearing, and its front end is spaced apart from the first rust removal wheel (310).

5. The rust removal equipment for anti-corrosion coating of ship pipelines according to claim 3, characterized in that: The second rust removal mechanism (400) includes, The second rust-removing wheel (410) is mounted on the protrusion rod (220); The third tube (420) is fixed on the front and rear sides of the second rust removal wheel (410) and is slidably connected to the inner wall of the first rust removal mechanism (300) and the polishing mechanism (500); The sealing frame (430) is inserted into the second rust removal wheel (410) at its front end and fixedly connected to the inner wall of the polishing mechanism (500) at its rear end; The positioning frame (440) is inserted into the second rust removal wheel (410) at its front end, fitted onto the reciprocating threaded rod (210) at its rear end, and clamped onto the inner wall of the polishing mechanism (500) at its lower end.

6. The rust removal equipment for anti-corrosion coating of ship pipelines according to claim 5, characterized in that: The second rust-removing wheel (410) includes, The first annular groove (411) is formed on the rear outer wall of the second rust removal wheel (410) and is arranged around the axis of the second rust removal wheel (410). The second annular groove (412) is coaxially opened inside the first annular groove (411), and its single-sided vertical cross-section is L-shaped. The second cross notch (413) is opened inside the second rust removal wheel (410) to connect the internal space of the first annular groove (411) with the external space of the second rust removal wheel (410).

7. The rust removal equipment for anti-corrosion coating of ship pipelines according to claim 6, characterized in that: The sealing frame (430) includes, The outer casing (431) is inserted into the first annular groove (411), and an installation hole for inserting a water pipe is provided on its rear outer wall; The inner shell (432) is fixed to the inner side of the outer shell (431) and is arranged coaxially with the outer shell (431); The telescopic frame (433) is fixed at its front end to the rear outer wall of the inner housing (432) and at its rear end to the inner wall of the polishing mechanism (500).

8. The rust removal equipment for anti-corrosion coating of ship pipelines according to claim 7, characterized in that: The polishing mechanism (500) includes, The polishing wheel (510) is mounted on the rear end of the reciprocating threaded rod (210) and is arranged with a gap between it and the front end of the first tube (110). A third cross notch (511) communicating with the water passage (211) is provided inside it. The fourth tube (520) is spaced at the front side of the polishing wheel (510) and fixedly connected to the telescopic frame (433). A positioning groove (521) is provided on the lower side of the inner wall of the fourth tube (520) along the traveling direction of the positioning frame (440).

9. The rust removal equipment for anti-corrosion coating of ship pipelines according to claim 8, characterized in that: The positioning frame (440) includes, The limiting rod (441) has an L-shaped structure and is inserted into the second annular groove (412); The L-shaped frame (442) is fixedly connected at one end to the rear end of the limiting rod (441), and the other end is snapped into the positioning groove (521); The collar (443) is fitted onto the reciprocating threaded rod (210) and is fixedly connected to the upper rear end of the L-shaped frame (442).

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