A special tool for LNG unloading arm steel wire rope maintenance
By using a cleaning ring and an oiling unit in the wire rope maintenance fixture, the problems of rust collection and grease application were solved, achieving efficient cleaning and maintenance of the wire rope.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- ENN (ZHOUSHAN) LNG CO LTD
- Filing Date
- 2024-06-29
- Publication Date
- 2026-06-26
AI Technical Summary
In existing technologies, rust cannot be properly collected after steel wire rope rust removal, and the oil brush has intermittent oil supply and severe wear, resulting in poor maintenance of steel wire rope.
Design a special tooling for the maintenance of LNG unloading boom wire rope. It uses a cleaning ring to drive the cleaning brush to rotate, and a cleaning groove runs radially through the cleaning ring to remove and discharge rust. At the same time, an oiling unit is set up to ensure that the grease is evenly applied.
It effectively cleans rust from steel wire ropes, prevents accumulation, ensures the continuity and uniformity of oiling, and improves the maintenance effect of steel wire ropes.
Smart Images
Figure CN118768254B_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of wire rope maintenance technology, specifically to a special tooling for the maintenance of wire ropes for LNG unloading arms. Background Technology
[0002] Chinese patent CN210879110U discloses a wire rope rust removal machine. It has a feed inlet at one end of a frame platform. Adjacent to the feed inlet, there are sequentially arranged boxes containing steel wool, brushes, oil nozzles, and oiling brushes. Guide wheels are located on the side adjacent to the boxes. A motor is located at the end of the frame platform, with a traction roller connected to its output. One end of the roller has a hook, and a push plate is located near the motor. The boxes are connected to a control box, the nozzles in the boxes are connected to an air compressor, the air compressor is connected to the control box, and the push plate is connected to the air compressor. This device removes rust from steel wire ropes, but it cannot simultaneously rewind and maintain the wire rope after rust removal.
[0003] Chinese patent CN221191106U discloses an automatic rewinding steel wire rope rust removal and maintenance device, including a rust removal equipment body, on which a rust removal transmission component and a rewinding adjustment component are installed, and the rust removal transmission component and the rewinding adjustment component are connected; the rust removal transmission component includes a rust removal component and a transmission component, both of which are installed on the rust removal equipment body, the rust removal component is connected to the transmission component, and the transmission component is connected to the rewinding adjustment component.
[0004] While the above solutions can remove rust and maintain the wire rope at the same time, the rust removed by the rust removal wheel cannot be properly collected after rust removal, resulting in accumulation at the bottom of the rust removal wheel. At the same time, using an oil brush to protect the surface of the wire rope also has drawbacks, namely, the oil supply cannot be guaranteed to be continuous, and the brush head is prone to wear due to prolonged friction between the oil brush and the wire rope, thus making it impossible for the oil brush to maintain the wire rope. Summary of the Invention
[0005] To address the aforementioned issues, a specialized tooling for maintaining the wire rope of an LNG unloading arm is provided. After the winding machine starts, the cleaning ring begins to rotate, driving the cleaning brush to rotate around the wire rope. The end of the cleaning brush furthest from the cleaning ring contacts the surface of the wire rope, cleaning the surface as the cleaning brush rotates with the cleaning ring. During this rotation, the cleaning brush removes rust adhering to the wire rope. Because the cleaning ring has evenly spaced cleaning grooves that extend radially through it, the rust removed by the cleaning brush falls onto the lower inner ring of the cleaning ring as it rotates. As the cleaning ring rotates, when the cleaning grooves reach the lower part of the ring, the accumulated rust is discharged from the grooves. The presence of multiple cleaning grooves prevents rust accumulation during cleaning, ensuring effective cleaning and allowing the subsequent lubrication unit to successfully apply grease to the wire rope surface.
[0006] To address the problems of existing technologies, this invention provides a special tooling for the maintenance of wire ropes in LNG unloading arms. The tooling is characterized by comprising a cleaning ring that rotates around the wire rope. Multiple cleaning grooves are evenly distributed on the inner wall of the cleaning ring, extending radially through the side wall of the ring. A cleaning brush, capable of contacting the surface of the wire rope, is also provided on the inner wall of the cleaning ring. The cleaning brush rotates synchronously with the cleaning ring, removing rust from the surface of the wire rope. When the cleaning grooves are rotated downwards by the cleaning ring, the removed rust is discharged.
[0007] Preferably, a drive unit for driving the rotation of the cleaning ring is provided on one side of the cleaning ring.
[0008] Preferably, an oiling unit is provided at one end of the cleaning ring for applying oil to the steel wire rope after rust removal. The oiling unit includes oiling components, and multiple sets of oiling components are provided. Each set of oiling components is arranged around the steel wire rope and can contact the surface of the steel wire rope. The contact part between the oiling component and the steel wire rope is coated with lubricating grease.
[0009] Preferably, the oiling component includes an oiling frame, through which a steel wire rope passes. Multiple oiling sleeves are evenly distributed around the steel wire rope on the oiling frame. The outer surface of the oiling sleeves is coated with grease. The oiling sleeves roll into contact with the surface of the steel wire rope, and the oiling sleeves apply grease to the steel wire rope when they roll into contact with the steel wire rope.
[0010] Preferably, a shaping wheel is provided inside the oiling sleeve. The shaping wheel is fixedly connected to the oiling frame. The oiling sleeve and the shaping wheel rotate in coordination. An arc-shaped groove is opened on the side of the shaping wheel facing the wire rope. The curvature of the arc-shaped groove matches the outer curvature of the wire rope. When the oiling sleeve rotates to the position of the arc-shaped groove, it deforms. The shape of the oiling sleeve after deformation matches the arc-shaped groove.
[0011] Preferably, bevel gears are fixedly installed at both ends of the oiling sleeve. The bevel gears rotate synchronously with the oiling sleeve. Two bevel gears installed on the near ends of two adjacent oiling sleeves on the oiling frame mesh with each other. The bevel gears are made of plastic.
[0012] Preferably, an oiling unit for applying grease to the oiling sleeve is provided on one side of the oiling sleeve. The oiling unit includes an oil outlet roller and an oil outlet pipe. The oil outlet pipe is arranged parallel to the extension direction of the oiling sleeve on one side of the oiling sleeve. An oil outlet hole is opened on the side wall of the oil outlet pipe. The oil outlet roller is rotatably sleeved on the oil outlet pipe. The oil outlet roller is made of a flexible porous material. The oil outlet roller discharges the grease through the oil outlet. The oil outlet roller absorbs the grease and applies the grease to the surface of the oiling sleeve when it comes into contact with the oiling sleeve.
[0013] Preferably, a tubular casing is fitted around the oiling component. The casing is located at one end of the cleaning ring, and a scraping ring is fixedly installed on the end of the casing away from the cleaning ring. A limiting ring is provided on the side of the scraping ring facing the cleaning ring. The limiting ring is fixedly installed on the inner wall of the casing. The wire rope after being coated with oil passes through the limiting ring and the scraping ring in sequence. The inner diameter of the scraping ring is larger than the diameter of the wire rope, and the difference between the inner diameter of the scraping ring and the diameter of the wire rope is equal to the rated grease coating thickness. The inner diameter of the limiting ring is larger than the inner diameter of the scraping ring.
[0014] Preferably, there is a cavity between the limiting ring and the scraping ring, and an oil return pipe is provided between the cavity and the oiling unit. The oil return pipe draws the grease accumulated in the cavity back to the oiling unit for recoating.
[0015] Preferably, the discharge shell is located below the cleaning ring. The rust discharged from the cleaning groove is discharged through the discharge shell. One end of the air blowing unit is located on the discharge shell, and the other end of the air blowing unit is located on the side wall of the casing. The air blowing unit draws air from the discharge shell and discharges it into the casing.
[0016] The advantages of this invention compared to the prior art are:
[0017] This invention features a cleaning ring with cleaning grooves. After the winding machine starts, the cleaning ring rotates, causing a cleaning brush to rotate around the wire rope. The end of the cleaning brush furthest from the cleaning ring contacts the surface of the wire rope, cleaning the surface as the cleaning brush rotates with the cleaning ring. The cleaning brush removes rust adhering to the wire rope during its rotation. Because the cleaning ring has evenly spaced cleaning grooves that extend radially through it, the rust removed by the cleaning brush falls onto the lower inner ring of the cleaning ring as it rotates. As the cleaning ring rotates, when the cleaning grooves reach the lower part of the ring, the accumulated rust is discharged from the grooves. The presence of multiple cleaning grooves prevents rust accumulation during cleaning, ensuring effective cleaning and allowing the subsequent oiling unit to successfully apply grease to the wire rope surface. Attached Figure Description
[0018] Figure 1 This is a 3D diagram illustrating the application of oil to the wire rope using a special tooling device for LNG unloading boom wire rope maintenance. Figure 1 .
[0019] Figure 2 This is a special tooling for the maintenance of wire ropes on LNG unloading booms. Figure 1 A magnified view of a portion of point A in the middle.
[0020] Figure 3 This is a 3D diagram illustrating the application of oil to the wire rope using a special tooling device for LNG unloading boom wire rope maintenance. Figure 2 .
[0021] Figure 4 This is a special tooling for the maintenance of wire ropes on LNG unloading booms. Figure 3 A magnified view of a portion of point B in the middle.
[0022] Figure 5 This is a special tooling for the maintenance of wire ropes on LNG unloading booms. Figure 3 A magnified view of a portion of point C.
[0023] Figure 6 This is a side view of a special tooling for the maintenance of the wire rope of an LNG unloading arm.
[0024] Figure 7 This is a special tooling for the maintenance of wire ropes on LNG unloading booms. Figure 6 Schematic diagram of cross-section at point DD.
[0025] Figure 8 This is a cross-sectional three-dimensional schematic diagram of a special tooling for the maintenance of steel wire ropes of LNG unloading arms.
[0026] Figure 9 This is a three-dimensional schematic diagram of a special tooling for the maintenance of LNG unloading boom wire ropes, after the casing and part of the oiling sleeve have been removed.
[0027] Figure 10 This is a special tooling for the maintenance of wire ropes on LNG unloading booms. Figure 9 A magnified view of a portion of point E in the middle.
[0028] The numbers on the map are:
[0029] 1. Cleaning ring; 11. Cleaning groove; 12. Cleaning brush; 2. Steel wire rope; 3. Drive unit; 31. Rotary drive; 32. Gear; 33. Gear ring; 4. Oiling unit; 41. Oiling component; 411. Oiling frame; 412. Oiling sleeve; 413. Shaping wheel; 4131. Arc groove; 414. Bevel gear; 42. Oiling unit; 421. Oil outlet roller; 422. Oil outlet pipe; 423. Oil supply sleeve; 424. Oil inlet; 43. Housing; 431. Scraping ring; 432. Limiting ring; 44. Oil return pipe; 5. Discharge housing; 6. Air blowing unit; 61. Air pump; 62. Air pipe; 63. Filter screen. Detailed Implementation
[0030] To further understand the features, technical means, and specific objectives and functions achieved by the present invention, the present invention will be described in further detail below with reference to the accompanying drawings and specific embodiments.
[0031] Reference Figure 1 and Figure 2 A special tooling for the maintenance of LNG unloading boom wire rope includes a cleaning ring 1 that rotates around the wire rope 2. Multiple cleaning grooves 11 are evenly opened on the inner wall of the cleaning ring 1. The cleaning grooves 11 penetrate the side wall of the cleaning ring 1 along the radial direction of the cleaning ring 1. A cleaning brush 12 that can contact the surface of the wire rope 2 is also provided on the inner wall of the cleaning ring 1. The cleaning brush 12 rotates synchronously with the cleaning ring 1. The rotating cleaning brush 12 removes the rust on the surface of the wire rope 2. When the cleaning grooves 11 are driven by the cleaning ring 1 to rotate to the lower side, the cleaned rust is discharged.
[0032] When maintaining the LNG unloading arm wire rope 2, one end of the wire rope 2 is first placed into a winding machine for winding. A cleaning ring 1 and an oiling unit 4 are sequentially installed at the front end of the winding machine. The wire rope 2 passes through the cleaning ring 1 and oiling unit 4 during winding. The working principle is as follows: After the winding machine starts, the cleaning ring 1 begins to rotate, driving the cleaning brush 12 to rotate around the wire rope 2. The end of the cleaning brush 12 furthest from the cleaning ring 1 contacts the surface of the wire rope 2, cleaning the surface of the wire rope 2 as it rotates with the cleaning ring 1. The cleaning brush 12 removes rust adhering to the wire rope 2 during its rotation. The cleaning grooves 11 are evenly distributed and extend through the cleaning ring 1 in the radial direction. When the cleaning ring 1 rotates, the rust removed by the cleaning brush 12 falls on the lower side of the inner ring of the cleaning ring 1. As the cleaning ring 1 rotates, when the cleaning grooves 11 on the cleaning ring 1 rotate to the lower part of the cleaning ring 1, the rust accumulated on the lower side of the cleaning ring 1 can be discharged from the cleaning grooves 11. Since there are multiple cleaning grooves 11, the accumulation of rust is avoided when the cleaning brush 12 cleans the wire rope 2, ensuring the cleaning effect of the cleaning brush 12 on the wire rope 2. This, in turn, ensures that the subsequent oiling unit 4 can smoothly apply grease to the surface of the wire rope 2.
[0033] Reference Figures 2-4 A drive unit 3 for driving the rotation of the cleaning ring 1 is provided on one side of the cleaning ring 1.
[0034] The drive unit 3 includes a rotary driver 31, a gear 32, and a gear ring 33. The gear ring 33 is fixedly mounted at the end of the cleaning ring 1, and the axis of the gear ring 33 is collinear with the axis of the cleaning ring 1. The gear 32 is rotatably mounted on one side of the gear ring 33, and the gear 32 meshes with the gear ring 33. The rotary driver 31 is mounted at one end of the gear 32 and is used to drive the gear 32 to rotate. The rotary driver 31 is preferably a servo motor. When the rotary driver 31 is started, it drives the gear ring 33 to rotate through the gear 32. Since the gear 32 and the gear ring 33 mesh with each other, the gear ring 33 can be driven after the gear 32 rotates, thereby causing the cleaning ring 1, which is fixedly connected to the gear ring 33, to rotate synchronously. The starting time of the rotary driver 31 is the same as the starting time of the winding machine, that is, when the wire rope 2 begins to be wound, the rotary driver 31 starts.
[0035] Reference Figure 6 and Figure 7 An oiling unit 4 is provided at one end of the cleaning ring 1 to apply oil to the steel wire rope 2 after rust removal. The oiling unit 4 includes an oiling component 41, which is provided in multiple sets. Each set of oiling components 41 is arranged around the steel wire rope 2 and can contact the surface of the steel wire rope 2. The contact part between the oiling component 41 and the steel wire rope 2 is coated with grease.
[0036] Reference Figures 7-9 The oiling component 41 includes an oiling frame 411, through which the wire rope 2 passes. Multiple oiling sleeves 412 are evenly distributed around the wire rope 2 on the oiling frame 411. The outer surface of the oiling sleeves 412 is coated with grease. The oiling sleeves 412 roll in contact with the surface of the wire rope 2, and the oiling sleeves 412 apply grease to the wire rope 2 when they roll in contact with the wire rope 2.
[0037] The oiling frame 411 has a ring-shaped structure. The moving steel wire rope 2 passes through the middle of the oiling frame 411. The oiling sleeve 412 is arranged around the steel wire rope 2 on the oiling frame 411. The side wall of the oiling sleeve 412 contacts the outer surface of the steel wire rope 2 when the steel wire rope 2 passes through the oiling frame 411. The outer surface of the oiling sleeve 412 is coated with grease. During the rolling process of the lubricating sleeve and the steel wire rope 2, the grease can be applied to the steel wire rope 2.
[0038] Reference Figure 8 and Figure 9 A shaping wheel 413 is provided inside the oiling sleeve 412. The shaping wheel 413 is fixedly connected to the oiling frame 411. The oiling sleeve 412 and the shaping wheel 413 rotate in cooperation. The shaping wheel 413 has an arc-shaped groove 4131 on the side facing the wire rope 2. The arc of the arc-shaped groove 4131 matches the outer arc of the wire rope 2. When the oiling sleeve 412 rotates to the position of the arc-shaped groove 4131, it deforms. The shape of the oiling sleeve 412 after deformation matches the arc-shaped groove 4131.
[0039] By setting a shaping wheel 413, the oiling sleeve 412 rotates on the shaping wheel 413. The oiling sleeve 412 is made of flexible material. When the wire rope 2 passes through the cleaning ring 1 and enters the oiling unit 4, the wire rope 2 contacts the oiling sleeve 412 sleeved on the outer periphery of the shaping wheel 413. At this time, the wire rope 2 and the arc groove 4131 on the shaping wheel 413 fit together. Thus, under the pushing and squeezing of the wire rope 2, the oiling sleeve 412 sleeved on the shaping wheel 413 deforms when it rotates through the arc groove 4131. At this time, the contact area between the oiling sleeve 412 and the surface of the wire rope 2 increases, and the wire rope 2 can more easily push the oiling sleeve 412 to rotate when it moves. At the same time, the rotated oiling sleeve 412 can continuously roll and coat the wire rope with grease. The surface of rope 2 allows for more even application of grease. Notably, the grease-coating sleeve 412 rolls on the surface of the wire rope 2 after contact, reducing wear. Traditional maintenance tools allow the grease-coating block to directly contact the surface of the wire rope 2, leading to rapid wear and requiring replacement periodically. Furthermore, the wear level cannot be accurately assessed during this process, potentially causing interruptions in grease application. This means that the wire rope 2 may not be able to make proper contact with the grease-coating block during movement. The use of the grease-coating sleeve 412 avoids these issues.
[0040] Reference Figure 10 A bevel gear 414 is fixedly installed at both ends of the oiling sleeve 412. The bevel gear 414 rotates synchronously with the oiling sleeve 412. Two bevel gears 414 installed on the near ends of two adjacent oiling sleeves 412 on the oiling rack 411 mesh with each other. The bevel gear 414 is made of plastic.
[0041] When the wire rope 2 passes through the oiling sleeve 412, the oiling sleeve 412 rotates under the drive of the wire rope 2. Since the bevel gear 414 is fixedly installed at the end of the oiling sleeve 412, the oiling sleeve 412 can drive the bevel gear 414 to rotate synchronously when it rotates. By making the bevel gear 414 a plastic material, the mass of the bevel gear 414 is greatly reduced. In this way, the oiling sleeve 412 can easily drive the bevel gear 414 to rotate after it rotates. If a metal bevel gear 414 is used, the oiling sleeve 412 needs to increase the torque to drive the bevel gear 414 to rotate, which may easily lead to the coating... The oil sleeve 412 is damaged. The bevel gear 414 at the end of the oil sleeve 412 can ensure that all the oil sleeves 412 on the oiling frame 411 rotate synchronously when the wire rope 2 passes by. This avoids the situation where some oil sleeves 412 rotate at a slower speed than others. If the bevel gear 414 is not provided, when some oil sleeves 412 rotate at a slower speed than others, the slower oil sleeves 412 will directly rub against the wire rope 2, which will cause damage to the surface of the slower oil sleeves 412.
[0042] Reference Figure 1 , Figure 3 , Figure 9 and Figure 10 An oiling unit 42 for applying grease to the oiling sleeve 412 is provided on one side of the oiling sleeve 412. The oiling unit 42 includes an oil outlet roller 421 and an oil outlet pipe 422. The oil outlet pipe 422 is arranged parallel to the extension direction of the oiling sleeve 412 on one side of the oiling sleeve 412. An oil outlet hole is opened on the side wall of the oil outlet pipe 422. The oil outlet roller 421 is rotatably sleeved on the oil outlet pipe 422. The oil outlet roller 421 is made of flexible porous material. The oil outlet roller 421 discharges grease through the oil outlet. The oil outlet roller 421 absorbs grease and applies grease to the surface of the oiling sleeve 412 when it comes into contact with the oiling sleeve 412.
[0043] The oiling unit 42 also includes an oil supply sleeve 423, which is located at the end of the oil outlet pipe 422. The oil outlet pipe 422 draws oil from the oil supply sleeve 423. The oil supply sleeve 423 is provided with an oil inlet 424. The grease is injected into the oil supply sleeve 423 through the oil inlet 424 and transported to the oil outlet pipe 422 through the oil supply sleeve 423. Since the oil outlet pipe 422 has multiple oil outlet holes and the oil outlet roller 421 is made of flexible porous material, the grease can wet the oil outlet roller 421 after it is discharged from the oil outlet pipe 422 through the oil outlet holes, so that the oil outlet roller 421 is full of grease. As the oil coating sleeve 412 rotates, the oil outlet roller 421 and the oil coating sleeve 412 rotate relative to each other. When the oil outlet roller 421 contacts the oil coating sleeve 412, the grease can be coated onto the oil coating sleeve 412, thus avoiding excessive grease on the oil coating sleeve 412.
[0044] Reference Figures 7-9 A tubular housing 43 is fitted around the oiling component 41. The housing 43 is located at one end of the cleaning ring 1. A scraping ring 431 is fixedly installed on the end of the housing 43 away from the cleaning ring 1. A limiting ring 432 is provided on the side of the scraping ring 431 facing the cleaning ring 1. The limiting ring 432 is fixedly installed on the inner wall of the housing 43. After being coated with oil, the wire rope 2 passes through the limiting ring 432 and the scraping ring 431 in sequence. The inner diameter of the scraping ring 431 is larger than the diameter of the wire rope 2, and the difference between the inner diameter of the scraping ring 431 and the diameter of the wire rope 2 is equal to the rated grease coating thickness. The inner diameter of the limiting ring 432 is larger than the inner diameter of the scraping ring 431.
[0045] Because the inner diameter of the limiting ring 432 is larger than the inner diameter of the scraping ring 431, the inner ring of the limiting ring 432 will not contact the wire rope 2. Furthermore, the inner diameter of the scraping ring 431 needs to be larger than the diameter of the wire rope 2. If the inner diameter of the scraping ring 431 is the same as the diameter of the wire rope 2, then when the wire rope 2 passes through the scraping ring 431, the grease coated on the wire rope 2 will be completely scraped off by the scraping ring 431. The size of the inner diameter of the scraping ring 431 needs to be determined based on the rated grease coating thickness, which needs to be determined according to the actual situation. Thus, after the wire rope 2 passes through the scraping ring 431, the excess grease on the wire rope 2 can be scraped off, ensuring the uniformity of the grease on the wire rope 2 after coating.
[0046] Reference Figure 7 and Figure 8 There is a cavity between the limiting ring 432 and the scraping ring 431. An oil return pipe 44 is provided between the cavity and the oiling unit 42. The oil return pipe 44 draws the grease accumulated in the cavity back to the oiling unit 42 for recoating.
[0047] An oil pump is installed on the return oil pipe 44. The oil pump re-inputs the grease in the cavity into the oil supply sleeve 423 through the return oil pipe 44, which can improve the recycling rate of the grease and avoid the waste of grease.
[0048] Reference Figure 3 and Figure 5 The discharge shell 5 is located below the cleaning ring 1. The rust discharged from the cleaning groove 11 is discharged through the discharge shell 5. One end of the air blowing unit 6 is located on the discharge shell 5, and the other end of the air blowing unit 6 is located on the side wall of the casing 43. The air blowing unit 6 draws air from the discharge shell 5 and discharges it into the casing 43.
[0049] Air blowing unit 6 draws air from discharge shell 5 and injects it into sleeve 43. A scraping ring 431 is located at the end of sleeve 43 furthest from cleaning ring 1. When scraping grease off the wire rope 2, scraping ring 431 inevitably blocks the gap between the wire rope 2 and the inner ring of scraping ring 431. Thus, the air entering sleeve 43 can only be discharged from the side of sleeve 43 facing cleaning ring 1, preventing rust from falling off the cleaning brush 12 on cleaning ring 1 and entering sleeve 43 during cleaning of wire rope 2. When the oiling unit 4 applies oil to the wire rope 2, it mixes with the lubricating grease. The air blowing unit 6 includes an air pump 61, an air pipe 62, and a filter screen 63. An air inlet is provided on the side wall of the discharge shell 5. The filter screen 63 is set on the air inlet. The two ends of the air pipe 62 are respectively set on the air inlet and the side wall of the casing 43. The air pump 61 is set on the air pipe 62. The air pump 61 draws the gas in the discharge shell 5 through the air pipe 62 and discharges it into the casing 43. The air in the casing 43 is discharged from the end of the casing 43 near the cleaning ring 1.
[0050] The above embodiments only illustrate one or more implementations of the present invention, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the present invention. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these all fall within the protection scope of the present invention. Therefore, the protection scope of the present invention should be determined by the appended claims.
Claims
1. A special tooling for the maintenance of steel wire ropes of LNG unloading arms, characterized in that, The cleaning ring (1) rotates around the wire rope (2). Multiple cleaning grooves (11) are evenly provided on the inner wall of the cleaning ring (1). The cleaning grooves (11) penetrate the side wall of the cleaning ring (1) along the radial direction of the cleaning ring (1). A cleaning brush (12) that can contact the surface of the wire rope (2) is also provided on the inner wall of the cleaning ring (1). The cleaning brush (12) rotates synchronously with the cleaning ring (1). The rotating cleaning brush (12) removes the rust on the surface of the wire rope (2). When the cleaning groove (11) is driven to rotate to the lower side by the cleaning ring (1), the rust that has been cleaned off is discharged. An oiling unit (4) is provided at one end of the cleaning ring (1) for applying oil to the steel wire rope (2) after rust removal. The oiling unit (4) includes an oiling component (41). There are multiple sets of oiling components (41). Each set of oiling components (41) is arranged around the steel wire rope (2) and can contact the surface of the steel wire rope (2). The contact part between the oiling component (41) and the steel wire rope (2) is coated with grease. The oiling component (41) includes an oiling frame (411), through which a steel wire rope (2) passes. Multiple oiling sleeves (412) are evenly distributed around the steel wire rope (2) on the oiling frame (411). The outer surface of the oiling sleeves (412) is coated with grease. The oiling sleeves (412) roll into contact with the surface of the steel wire rope (2), and the oiling sleeves (412) apply grease to the steel wire rope (2) when rolling into contact with the steel wire rope (2). A shaping wheel (413) is provided inside the oiling sleeve (412). The shaping wheel (413) is fixedly connected to the oiling frame (411). The oiling sleeve (412) and the shaping wheel (413) rotate in cooperation. The shaping wheel (413) has an arc groove (4131) on the side facing the wire rope (2). The arc of the arc groove (4131) matches the outer arc of the wire rope (2). When the oiling sleeve (412) rotates to the position of the arc groove (4131), it deforms. The shape of the oiling sleeve (412) after deformation matches the arc groove (4131).
2. The special tooling for maintaining the wire rope of an LNG unloading arm according to claim 1, characterized in that, A drive unit (3) for driving the rotation of the cleaning ring (1) is provided on one side of the cleaning ring (1).
3. The special tooling for maintaining the wire rope of an LNG unloading arm according to claim 1, characterized in that, A bevel gear (414) is fixedly installed at both ends of the oiling sleeve (412). The bevel gear (414) rotates synchronously with the oiling sleeve (412). Two bevel gears (414) on the near ends of two adjacent oiling sleeves (412) on the oiling rack (411) mesh with each other. The bevel gears (414) are made of plastic.
4. A special tooling for maintaining the wire rope of an LNG unloading arm according to claim 1, characterized in that, An oiling unit (42) for applying grease to the oiling sleeve (412) is provided on one side of the oiling sleeve (412). The oiling unit (42) includes an oil outlet roller (421) and an oil outlet pipe (422). The oil outlet pipe (422) is arranged parallel to the extension direction of the oiling sleeve (412) on one side of the oiling sleeve (412). An oil outlet hole is provided on the side wall of the oil outlet pipe (422). The oil outlet roller (421) is rotated and sleeved on the oil outlet pipe (422). The oil outlet roller (421) is made of flexible porous material. The oil outlet roller (421) discharges the grease through the oil outlet. The oil outlet roller (421) absorbs the grease and applies the grease to the surface of the oiling sleeve (412) when it comes into contact with the oiling sleeve (412).
5. A special tooling for maintaining the wire rope of an LNG unloading arm according to claim 4, characterized in that, A tubular shell (43) is fitted around the oiling component (41). The shell (43) is located at one end of the cleaning ring (1). A scraping ring (431) is fixedly installed on the end of the shell (43) away from the cleaning ring (1). A limiting ring (432) is provided on the side of the scraping ring (431) facing the cleaning ring (1). The limiting ring (432) is fixedly installed on the inner wall of the shell (43). The wire rope (2) after being coated with oil passes through the limiting ring (432) and the scraping ring (431) in sequence. The inner diameter of the scraping ring (431) is larger than the diameter of the wire rope (2). The difference between the inner diameter of the scraping ring (431) and the diameter of the wire rope (2) is equal to the rated grease coating thickness. The inner diameter of the limiting ring (432) is larger than the inner diameter of the scraping ring (431).
6. A special tooling for maintaining the wire rope of an LNG unloading arm according to claim 5, characterized in that, There is a cavity between the limiting ring (432) and the scraping ring (431). A return oil pipe (44) is provided between the cavity and the oiling unit (42). The return oil pipe (44) draws the grease accumulated in the cavity back to the oiling unit (42) for recoating.
7. A special tooling for maintaining the wire rope of an LNG unloading arm according to claim 5, characterized in that, The discharge shell (5) is located below the cleaning ring (1). The rust discharged from the cleaning groove (11) is discharged through the discharge shell (5). One end of the air blowing unit (6) is located on the discharge shell (5), and the other end of the air blowing unit (6) is located on the side wall of the casing (43). The air blowing unit (6) draws air from the discharge shell (5) and discharges it into the casing (43).