A wire rope inspection and maintenance device for a portal crane

Abstract

The present application belongs to the technical field of steel wire rope, and discloses a steel wire rope inspection and maintenance device of a portal crane. A fixed end is arranged on a hanging beam of the portal crane, one end of the steel wire rope is arranged at the fixed end, and the other end is connected to a winch through a movable pulley. The inspection and maintenance device comprises a body assembly, an oil scraping assembly and a camera. The body assembly comprises a first bell mouth structure, a first connecting pipe and a second bell mouth structure connected in sequence. The steel wire rope can be arranged in the body assembly. The body assembly can be fixed to the shell of the movable pulley. The winch is rotated to move the body assembly. The first bell mouth structure is used for accommodating the lubricating grease. The oil scraping assembly is arranged on the first bell mouth structure. When the body assembly moves downward, the oil scraping assembly is used for scraping off the excess lubricating grease on the steel wire rope. The camera is arranged on the first bell mouth structure. The camera is used for shooting the position above the oil scraping assembly and transmitting the shooting information back to a terminal information receiving device, thereby reducing the difficulty and cost of inspection and maintenance.

Description

Technical Field

[0001] This invention relates to the field of wire rope technology, and in particular to a wire rope inspection and maintenance device for a gantry crane. Background Technology

[0002] like Figure 1 As shown, the gantry crane 700 has a large external dimension and operates outdoors for extended periods. Combined with the lifting tension, the surface and internal lubricant of the lifting wire rope 400 will gradually decrease, weakening its resistance to external corrosion and leading to corrosion. Improper use can also cause excessive localized wear, strand breakage, or broken wires in the lifting wire rope 400, seriously threatening the safety of the lifting process and necessitating timely disposal. Therefore, it is essential to conduct regular comprehensive inspections and maintenance of the wire rope 400 of the gantry crane 700 according to relevant industry regulations to ensure that the lifting wire rope 400 is in a safe condition.

[0003] One end of the wire rope 400 is fixed to the fixed end 300 below the end of the lifting beam 200, and the other end is connected to the winch 100 through the movable pulley 500 and the fixed pulley block. The wire rope 400 drives the movable pulley 500 to lift and lower (meeting the lifting requirements) by rotating the winch 100 in both directions.

[0004] Although regular inspection and maintenance of the wire rope 400 of the gantry crane 700 can be performed at the winch 100 or on the ground, a portion of the wire rope 400 will always be unable to return to the winch 100 position. Furthermore, due to the structural characteristics of the gantry crane 700, the end of the lifting beam 200 cannot be lowered to the ground (it remains at a high altitude). This necessitates high-altitude inspection and maintenance of the end of the wire rope 400 connected to the fixed end 300 below the end of the lifting beam 200. Figure 1 As shown, the area of ​​the wire rope 400 near the fixed end 300 is the difficult area 400A.

[0005] The existing technology involves using a separate crane to gradually lift the inspection and maintenance personnel (who stand in a special cage) from the ground to a high altitude. During the lifting process, the personnel manually inspect and maintain the difficult areas 400A of the wire rope 400. However, this method requires the use of a crane, resulting in high costs, difficult inspection and maintenance, and a high risk of manual high-altitude work. Summary of the Invention

[0006] The purpose of this invention is to provide a wire rope inspection and maintenance device for gantry cranes, which eliminates the need for cranes and manual high-altitude operations, thereby reducing the difficulty and cost of inspection and maintenance.

[0007] To achieve this objective, the present invention adopts the following technical solution:

[0008] A wire rope inspection and maintenance device for a gantry crane, wherein a fixed end is provided on the lifting beam of the gantry crane, one end of the wire rope is located at the fixed end, and the other end is connected to the winch via a movable pulley; the inspection and maintenance device includes:

[0009] The main body assembly includes a first connecting pipe, a first flared end structure and a second flared end structure connected to both ends of the first connecting pipe; the inner diameter of the first connecting pipe is larger than the outer diameter of the wire rope, and the wire rope can pass through the first flared end structure, the first connecting pipe and the second flared end structure; the main body assembly can be fixed to the housing of the movable pulley, and the winch rotates to move the main body assembly; the first flared end structure is used to accommodate lubricating grease.

[0010] An oil scraping assembly is provided at the first flared structure. When the main body assembly moves downward, the oil scraping assembly is used to scrape off excess grease from the wire rope.

[0011] A camera is installed at the first horn-shaped structure. The camera is used to capture images of the area above the oil scraper assembly and transmit the captured information back to the terminal information receiving device.

[0012] In some possible implementations, the body assembly can be moved to the fixed end and submerged in the grease.

[0013] In some possible implementations, the oil scraping assembly is connected to the inside of the first flared structure.

[0014] In some possible implementations, the oil scraping assembly is connected to the first flared structure via an elastic cord.

[0015] In some possible implementations, the camera is positioned 30mm-50mm away from the oil scraping assembly.

[0016] In some possible implementations, three cameras are provided, and the three cameras are evenly spaced at the edge of the first horn structure away from the end of the first connecting tube.

[0017] In some possible implementations, the oil scraping assembly includes a second connecting pipe, a third flared structure and a fourth flared structure connected to both ends of the second connecting pipe, wherein the inner diameter of the second connecting pipe is larger than the outer diameter of the steel wire rope, and the steel wire rope can be threaded through the oil scraping assembly.

[0018] In some possible implementations, the body assembly includes two first split structures with a plane symmetrical about the centerline of the first connecting pipe, and the two first split structures are detachably connected.

[0019] In some possible implementations, a magnet and a support are also included, the magnet being disposed in the housing of the movable pulley, and the support connecting the magnet and the first connecting tube.

[0020] In some possible implementations, a battery disposed on the magnet is also included for powering the camera.

[0021] The beneficial effects of this invention are:

[0022] This invention provides a wire rope inspection and maintenance device for a gantry crane. By incorporating a main body assembly, a camera, and an oil scraper assembly, the wire rope passes through the main body assembly. A first flared structure accommodates lubricating grease. The main body assembly is fixed to the housing of a movable pulley. The device moves by the forward and reverse rotation of a winch, thus achieving automatic inspection and maintenance of the wire rope. This reduces the difficulty and cost of inspecting and maintaining the wire rope of a gantry crane, improves the quality and safety of the inspection and maintenance process, ensures the safe condition of the wire rope, and extends its service life. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of a gantry crane and its wire rope;

[0024] Figure 2 This is a schematic diagram of a wire rope inspection and maintenance device for a gantry crane provided in a specific embodiment of the present invention;

[0025] Figure 3 yes Figure 2 Enlarged view of point A;

[0026] Figure 4 This is a top view of the oil scraping assembly provided in a specific embodiment of the present invention;

[0027] Figure 5 This is a schematic diagram of the wire rope inspection and maintenance device for a gantry crane provided in a specific embodiment of the present invention, located at the bottom end of the wire rope.

[0028] Figure 6 yes Figure 5 Enlarged view of point B;

[0029] Figure 7 This is a schematic diagram of the wire rope inspection and maintenance device for a gantry crane provided in a specific embodiment of the present invention, located at the top of the wire rope.

[0030] Figure 8 yes Figure 7 Enlarged view of point C;

[0031] Figure 9 This is a schematic diagram of the automatic oil scraping device for the wire rope inspection and maintenance of a gantry crane provided in a specific embodiment of the present invention.

[0032] Figure 10 yes Figure 9 Enlarged view of point D.

[0033] In the picture:

[0034] 100. Winch; 200. Lifting beam; 300. Fixed end; 400. Wire rope; 400A. Difficult area; 500. Moving pulley; 510. Housing; 600. Inspection and maintenance device; 700. Gantry crane;

[0035] 1. Body assembly; 11. First connecting pipe; 12. First flared mouth structure; 13. Second flared mouth structure; 15. Connecting ear plate; 16. Bolt;

[0036] 2. Oil scraper assembly; 21. Elastic rope; 22. Second connecting pipe; 23. Third flared mouth structure; 24. Fourth flared mouth structure;

[0037] 3. Camera; 31. Bracket; 4. Magnet; 5. Support; 51. Fixing structure; 6. Battery; 7. Power cord; 10. Lubricant. Detailed Implementation

[0038] To make the technical problems solved by the present invention, the technical solutions adopted, and the technical effects achieved clearer, the technical solutions of the embodiments of the present invention will be further described in detail below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0039] In the description of this invention, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; 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; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0040] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0041] like Figures 1-10 As shown, this embodiment provides a wire rope inspection and maintenance device for a gantry crane. The gantry crane 700 has a fixed end 300 on its lifting beam 200. One end of the wire rope 400 is located at the fixed end 300, and the other end is connected to the winch 100 via a movable pulley 500. The inspection and maintenance device 600 includes a body assembly 1, an oil scraping assembly 2, and a camera 3. The body assembly 1 includes a first connecting pipe 11, a first flared structure 12, and a second flared structure 13 connected to both ends of the first connecting pipe 11. The inner diameter of the first connecting pipe 11 is larger than the outer diameter of the wire rope 400, allowing the wire rope 400 to pass through the first flared structure 12, the first connecting pipe 11, and the second flared structure 13. The body assembly 1 is fixed to the housing 510 of the movable pulley 500. Rotation of the winch 100 moves the body assembly 1. The first flared structure 12 is used to hold the lubricating grease 10. The oil scraper assembly 2 is located on the first flared structure 12. When the main body assembly 1 moves downward, the oil scraper assembly 2 is used to scrape off excess grease 10 from the wire rope 400. The camera 3 is located on the first flared structure 12. The camera 3 is used to capture images of the area above the oil scraper assembly 2 and transmit the captured information back to the terminal information receiving device.

[0042] The preparation work for using the wire rope inspection and maintenance device for a gantry crane includes the following steps: Fit the main body assembly 1 onto the wire rope 400. The main body assembly 1 is fixed to the housing 510 of the movable pulley 500, with the first flared structure 12 facing upwards and the second flared structure 13 facing downwards. The oil scraper assembly 2 and camera 3 are positioned in preset locations. Turn on all cameras 3 and the terminal information receiving device (such as a mobile phone or computer), and adjust the vertical angle of the cameras 3. For example, the distance between the camera 3 and the oil scraper assembly 2 should be 30mm-50mm, such as 30mm, 40mm, or 50mm. Check the image on the screen of the terminal information receiving device until the actual condition of the wire rope 400 can be clearly and completely observed. Then, place sufficient grease 10 into the first flared structure 12 of the inspection and maintenance device 600 (just submerging the top of the oil scraper assembly 2).

[0043] The method for automatically inspecting the wire rope using a gantry crane's wire rope inspection and maintenance device includes the following steps: The winch 100 rotates in one direction (e.g., forward), causing the main body assembly 1 to move upward along the wire rope 400. The camera 3 captures and transmits the images in real time, and the terminal information receiving device receives the captured information in real time. When the winch 100 is started and continuously rotates forward, the main body assembly 1 and the camera 3 continuously move upward, allowing for an automatic inspection of the surface morphology and safety condition of the wire rope 400 on the terminal information receiving device (e.g., a mobile phone or computer) (providing a basis for evaluating the safety performance of the wire rope 400).

[0044] In one embodiment, three cameras 3 are provided, evenly spaced at the edge of the first horn structure 12 away from the end opposite to the first connecting pipe 11. Specifically, the three cameras 3 are at the same horizontal height, and the distance between adjacent cameras 3 is equal. By increasing the number of cameras 3 and setting the distance between them to be equal, the horizontal height of the cameras 3 is the same. By adjusting the vertical angle of the cameras 3, the three cameras 3 can automatically check the integrity of the wire rope 400 from 360 degrees without blind spots and transmit the inspection information back in real time during the rising process of the pressure-holding device, thereby improving reliability.

[0045] Optionally, a bracket 31 is provided at the top of the first horn structure 12, and the camera 3 is mounted on the bracket 31, so that the height and angle of the camera 3 can be adjusted through the bracket 31. The bracket 31 can refer to the prior art and will not be described in detail.

[0046] The method for automatic maintenance using the wire rope inspection and maintenance device of a gantry crane includes the following steps: the winch 100 rotates in one direction (e.g., forward), causing the main body assembly 1 to move upward along the wire rope 400, and grease 10 is applied to the wire rope 400. Specifically, when the winch 100 is started and continuously rotates forward, the inspection and maintenance device 600 continuously moves upward, and the grease 10 in the first flared structure 12 (container) at its upper end is evenly applied to the outer circumferential surface of the wire rope 400 under the combined action of its own weight, friction between it and the wire rope 400, and the restraining force of the inner wall of the first connecting pipe 11.

[0047] Optionally, the main body assembly 1 can be moved to the fixed end 300 and submerged in the grease 10, thus achieving maintenance of the top wire rope 400. After the fixed end 300 is completely submerged in the grease 10 for maintenance, the inspection and maintenance device 600 stops moving upward, completing the inspection and maintenance of the entire wire rope 400 (the difficult area for inspection and maintenance 400A).

[0048] The method for automatically scraping oil using a wire rope inspection and maintenance device on a gantry crane includes the following steps: The winch 100 rotates in another direction (e.g., reverse), causing the main body assembly 1 to move downwards along the wire rope 400, and the oil scraping assembly 2 scrapes off excess grease 10 from the wire rope 400. Specifically, after the inspection and maintenance device 600 reaches the top of the wire rope 400 and completes the inspection and maintenance of the fixed end 300, the inspection and maintenance device 600, under the monitoring of the camera 3, starts the winch 100 to reverse and descend. At this time, the oil scraping assembly 2 scrapes off the excess grease 10 remaining on the surface of the wire rope 400 downwards, and moves downwards synchronously with the inspection and maintenance device 600 until it returns to ground height, completing the inspection and maintenance of the entire wire rope 400 (difficult area 400A).

[0049] By configuring the main body assembly 1, camera 3, and oil scraping assembly 2, the wire rope 400 passes through the main body assembly 1. The first flared structure 12 accommodates the lubricating grease 10. The main body assembly 1 is fixed to the housing 510 of the movable pulley 500. The maintenance device moves by the forward and reverse rotation of the winch 100, thereby realizing automatic inspection, maintenance, and oil scraping of the wire rope 400. This reduces the difficulty and cost of inspecting and maintaining the wire rope 400 of the gantry crane 700, improves the quality of inspection and maintenance and the safety of the process, ensures the safe condition of the wire rope 400, and extends the service life of the wire rope 400.

[0050] The oil scraping assembly 2 includes a second connecting pipe 22, a third flared structure 23 and a fourth flared structure 24 connected to both ends of the second connecting pipe 22. The inner diameter of the second connecting pipe 22 is larger than the outer diameter of the wire rope 400, allowing the wire rope 400 to pass through the oil scraping assembly 2. During assembly, the third flared structure 23 faces upward, and the fourth flared structure 24 faces downward. During oil scraping, the fourth flared structure 24 and the second connecting pipe 22 scrape away excess grease 10 remaining on the surface of the wire rope 400.

[0051] The main body assembly 1 includes two first split structures with a plane passing through the center line of the first connecting pipe 11 as its symmetrical plane. The two first split structures are detachably connected. Further, the first flared structure 12, the first connecting pipe 11, and the second flared structure 13 are split structures, and each of the three is formed by splicing three split structures together, symmetrically arranged along a symmetrical plane. Each split structure has ear plates, and the ear plates on the two split structures are connected by bolts 16 and nuts. The two split structures are fastened together from both sides of the wire rope 400 for easy assembly and disassembly. The first connecting pipe 11 is a plastic tube with an inner diameter 2mm-4mm larger than the outer diameter of the wire rope 400.

[0052] Similarly, the oil scraper assembly 2 includes two second split structures arranged symmetrically along a plane of symmetry, and the two second split structures are detachably connected. Further, the second connecting pipe 22, the third flared structure 23, and the fourth flared structure 24 are split structures, and each of the three is formed by splicing three split structures together, i.e., the second split structure is formed by splicing three split structures. The split structures are provided with lugs, and the lugs on the two split structures are connected by bolts 16 and nuts. The two split structures are fastened together from both sides of the wire rope 400 for easy assembly and disassembly. The second connecting pipe 22 is a plastic pipe, and its inner diameter is 2mm-4mm larger than the outer diameter of the wire rope 400.

[0053] The oil scraper assembly 2 is connected to the inside of the first flared structure 12. The oil scraper assembly 2 scrapes off excess grease 10 from the wire rope 400 and drops it into the first flared structure 12, saving grease 10, protecting the environment, and reducing safety hazards.

[0054] The oil scraper assembly 2 is connected to the first flared structure 12 via an elastic rope 21. As the inspection and maintenance device 600 continues to rise, when the top of the oil scraper contacts the fixed end 300, under the monitoring and guidance of the camera 3, the inspection and maintenance device 600 continues to move upward. The elastic rope 21 undergoes elastic deformation, and the oil scraper assembly 2 moves downward relative to the main body assembly 1, allowing the fixed end 300 to be completely submerged in the grease 10. The connection of the oil scraper assembly 2 to the first flared structure 12 via the elastic rope 21 prevents the oil scraper from being fixed and interfering with the fixed end 300, thus affecting the upward movement of the main body assembly 1 and consequently affecting the submersion of the fixed end 300 in the grease 10.

[0055] In one embodiment, connecting ear plates 15 are provided on the inner side of the first flared structure 12 and the outer side of the second connecting tube 22, and the hooks at both ends of the elastic rope 21 are respectively hung on the two connecting ear plates 15. Furthermore, there are two elastic ropes 21, symmetrically arranged on both sides of the oil scraping assembly 2, to provide a point of force for the oil scraping assembly 2.

[0056] The structure of the connecting ear plate 15 described above is the same or roughly the same, and the size is set according to the requirements.

[0057] The inspection and maintenance device 600 also includes a magnet 4, a support member 5, and a battery 6 mounted on the magnet 4. The magnet 4 is mounted on the housing 510 of the movable pulley 500. The support member 5 connects the magnet 4 and the first connecting pipe 11. The battery 6 is used to power the camera 3. The battery 6 and the camera 3 are connected by a power cable 7. Optionally, the support member 5 is provided with a fixing structure 51, and the power cable 7 is fixed by the fixing structure 51, such as a base plate. The power cable 7 is tied to the base plate with cable ties.

[0058] The preparation work for using the wire rope inspection and maintenance device for a gantry crane includes the following steps: First, place the magnet 4 at an appropriate position on the surface of the housing 510 of the movable pulley 500 and turn on the switch of the magnet 4 so that the strong magnet 4 is firmly attracted to the housing 510 of the movable pulley 500. Install the battery 6 onto the magnet 4 and install the fixing support 5, such as a steel pipe. Then, fasten the first flared structure 12, the first connecting pipe 11, and the second flared structure 13 of the two symmetrical structures onto the outer surface of the wire rope 400 to be inspected and maintained. Connect and fix all connecting ear plates 15 by installing and tightening the connecting bolts 16, so that the main body assembly 1 is fastened and connected into a whole and fits on the outer surface of the wire rope 400. The main body assembly 1, i.e., the first connecting pipe 11 in this scheme, is fixedly connected to the support 5. Finally, install three cameras 3, and connect the three cameras 3 to the battery 6 through the power cable 7, and adjust the position of the cameras 3. The third flared structure 23, the second connecting pipe 22 and the fourth flared structure 24 of the two symmetrical structures of the oil scraping device are fastened to the outer surface of the steel wire rope 400 to be inspected and maintained. The hooks at both ends of the two elastic ropes 21 are respectively hung on the connecting ear plate 15 inside the first flared structure 12 and the connecting ear plate 15 of the oil scraping assembly 2.

[0059] The disassembly and recycling method of the inspection and maintenance device 600 for the wire rope 400 of the gantry crane 700 includes the following steps: After completing the inspection, maintenance and oil scraping of the entire wire rope 400 (difficult area 400A), first remove and recycle the oil scraping component 2 (loosen and remove the connecting bolt 16, remove the hook of the elastic rope 21), then remove the remaining grease 10 in the first flared structure 12 on the inspection and maintenance device 600 and recycle it properly, then recycle the camera 3, the power cord 7 of the camera 3 and the battery 6, then loosen the connecting bolt 16 of the connecting ear plate 15 of the inspection and maintenance device 600 and recycle the first connecting pipe 11, the first flared structure 12 and the second flared structure 13 of the two halves of the structure respectively, finally remove the support 5 and the magnet 4, and properly store all components for the next inspection and maintenance of the wire rope 400.

[0060] Compared with the prior art, this embodiment has the following advantages:

[0061] 1. No need to use another crane (ensure sufficient lifting height) for inspection and maintenance, fewer preparation and closing procedures, shorter inspection and maintenance cycle, and lower cost.

[0062] 2. This avoids the need for inspection and maintenance personnel to be hoisted to high altitudes for manual work, thus reducing the risk factor of the operation.

[0063] 3. This avoids the need for inspection and maintenance personnel to be hoisted to high altitudes for manual work, thus reducing the labor intensity of inspection and maintenance.

[0064] 4. It avoids the need for inspection and maintenance personnel to be hoisted to high altitudes for manual work, resulting in high labor efficiency and low overall cost of inspection and maintenance.

[0065] 5. It avoids the need for construction personnel to be hoisted to high altitudes for manual work during inspection and maintenance, resulting in a high degree of uniformity in the maintenance of the 400 steel wire rope, a small possibility of inadequate local maintenance, and good maintenance effect.

[0066] 6. To avoid construction personnel being hoisted to high altitudes for manual work during inspection and maintenance, the 400mm wire rope maintenance is highly uniform, reducing the possibility of excessive local maintenance (over-lubrication), saving lubricating grease, avoiding pollution of the construction environment (excess lubricating grease will fall onto the construction site), and preventing safety hazards (lubricating grease falling onto the construction site can easily cause people to slip).

[0067] 7. This method avoids requiring construction workers to be hoisted to high altitudes for manual work, thus reducing the psychological and operational skill requirements for the workers.

[0068] 8. To avoid construction workers being hoisted to high altitudes for manual work during inspection and maintenance, the requirements for external wind force are low.

[0069] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the implementation of the present invention. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the scope of protection of the claims of the present invention.

Claims

1. A wire rope inspection and maintenance device for a gantry crane, characterized in that, The lifting beam (200) of the gantry crane (700) is provided with a fixed end (300), one end of the wire rope (400) is provided at the fixed end (300), and the other end is connected to the winch (100) through the movable pulley (500); The inspection and maintenance device (600) includes: The main body assembly (1) includes a first connecting pipe (11), a first flared structure (12) and a second flared structure (13) connected to both ends of the first connecting pipe (11); the inner diameter of the first connecting pipe (11) is larger than the outer diameter of the wire rope (400), and the wire rope (400) can pass through the first flared structure (12), the first connecting pipe (11) and the second flared structure (13); the main body assembly (1) can be fixed to the outer shell (510) of the movable pulley (500), and the winch (100) rotates to move the main body assembly (1); the first flared structure (12) is used to contain lubricating grease (10); The oil scraping assembly (2) is located on the first flared structure (12). When the main body assembly (1) moves downward, the oil scraping assembly (2) is used to scrape off the excess grease (10) on the wire rope (400). A camera (3) is located on the first horn structure (12). The camera (3) is used to capture images of the area above the oil scraper assembly (2) and transmit the captured information back to the terminal information receiving device.

2. The wire rope inspection and maintenance device for a gantry crane according to claim 1, characterized in that, The body assembly (1) is movable to the fixed end (300) and submerged in the grease (10).

3. The wire rope inspection and maintenance device for a gantry crane according to claim 1, characterized in that, The oil scraping assembly (2) is connected to the inside of the first horn-shaped structure (12).

4. The wire rope inspection and maintenance device for a gantry crane according to claim 3, characterized in that, The oil scraping assembly (2) is connected to the first flared structure (12) via an elastic rope (21).

5. The wire rope inspection and maintenance device for a gantry crane according to claim 1, characterized in that, The camera (3) is positioned 30mm-50mm away from the oil scraping assembly (2) for taking pictures.

6. The wire rope inspection and maintenance device for a gantry crane according to claim 1, characterized in that, The camera (3) is provided in three parts, and the three cameras (3) are evenly spaced at the edge of the first horn structure (12) away from the first connecting pipe (11).

7. The wire rope inspection and maintenance device for a gantry crane according to claim 1, characterized in that, The oil scraping assembly (2) includes a second connecting pipe (22), a third flared structure (23) and a fourth flared structure (24) connected to both ends of the second connecting pipe (22). The inner diameter of the second connecting pipe (22) is larger than the outer diameter of the wire rope (400). The wire rope (400) can be threaded through the oil scraping assembly (2).

8. The wire rope inspection and maintenance device for a gantry crane according to claim 1, characterized in that, The main body assembly (1) includes two first split structures with a plane passing through the center line of the first connecting pipe (11) as the plane of symmetry, and the two first split structures are detachably connected.

9. The wire rope inspection and maintenance device for a gantry crane according to claim 1, characterized in that, It also includes a magnet (4) and a support (5), the magnet (4) being disposed in the housing (510) of the movable pulley (500), and the support (5) connecting the magnet (4) and the first connecting tube (11).

10. The wire rope inspection and maintenance device for a gantry crane according to claim 9, characterized in that, It also includes a battery (6) disposed on the magnet (4) for powering the camera (3).

Images