Lubricating oil injection structure for offshore platform

Abstract

The lubricating oil injection structure for the offshore platform comprises a base, a sliding table, a sliding table bearing arm, a rotating block and an oil injection device, the base is assembled on the inner side of a cabin door, one end of the sliding table is assembled on the base in a sliding mode, and the other end of the sliding table is assembled on the sliding table bearing arm in a sliding mode; the rotating block is rotationally assembled on the sliding table bearing arm, the oil spraying device is connected with the rotating block, the oil spraying device is provided with a spraying head, and the spraying head points to a gear and rack meshing area. The multi-degree-of-freedom adjusting function of the lubricating oil injection mechanism is achieved, the position and angle of the oil injection device can be flexibly adjusted, multiple times of external oil injection are avoided, and the convenience of oil injection lubrication and the injection precision are improved.

Description

Technical Field

[0001] This application relates to the technical field of marine engineering equipment, and in particular to a lubricating oil injection structure for offshore platforms. Background Technology

[0002] Offshore platforms are large engineering structures used for offshore resource development, production, observation and construction, and are widely used in fields such as offshore oil and gas exploration and development, and subsea pipeline laying.

[0003] To enable the lifting and lowering function of the main body of an offshore platform, some platforms employ a rack and pinion transmission system. The main body of the platform is mounted on four legs, which are fixed to the seabed. A rack is installed on the legs, and gears are mounted on the main body of the platform. When the drive unit rotates the gears, the platform body moves vertically along the legs through the meshing of the gears and racks. The meshing area between the gears and racks requires regular lubrication to reduce wear. In existing technology, lubrication of enclosed compartments mainly relies on manual oil spraying. This manual oil spraying is achieved through openings in the hatches using an oil spraying device, with the nozzle aimed at the meshing area of ​​the gears and racks.

[0004] However, since the gear and rack meshing area is located in the enclosed compartment between the platform body and the pile legs, oil spraying is required through the narrow opening reserved in the hatch. When operating manually, the staff needs to align the gear and rack meshing area from the outside, making it difficult for the staff to observe the actual contact point, resulting in poor oil spraying accuracy. Furthermore, the repeated manual oil spraying operation is cumbersome and has low oil spraying efficiency. Summary of the Invention

[0005] In view of the shortcomings of the existing technology, one of the objectives of this utility model is to provide a lubricating oil injection structure for offshore platforms.

[0006] This application provides a lubricating oil injection structure for offshore platforms, which adopts the following technical solution:

[0007] A lubricating oil injection structure for an offshore platform includes a base, a slide, a slide support arm, a rotating block, and an oil injection device. The base is mounted inside the hatch. One end of the slide is slidably mounted on the base, and the other end is slidably mounted on the slide support arm. The rotating block is rotatably mounted on the slide support arm. The oil injection device is connected to the rotating block and has a nozzle that points towards the gear and rack meshing area.

[0008] By adopting the above technical solution, the multi-degree-of-freedom adjustment function of the lubricating oil injection mechanism is realized, which enables the oil injection device to flexibly adjust its position and angle. This avoids the need for operators to align the gear and rack meshing area from the outside, which would otherwise result in poor oil injection accuracy and low oil injection efficiency. At the same time, after the lubricating oil injection mechanism is assembled, the operator can avoid repeated oil injection operations, which greatly improves the convenience of oil injection and lubrication.

[0009] Preferably, the slide table includes a base slide rail and a movable slide rail, the base is slidably mounted on the base slide rail, the slide table support arm is slidably mounted on the movable slide rail, and the base slide rail and the movable slide rail are perpendicular to each other.

[0010] By adopting the above technical solution, the sliding fit between the base and the base slide rail enables the entire oil injection device to move towards or away from the hatch. The sliding assembly of the slide support arm and the moving slide rail, in conjunction with the base slide rail, allows the position of the nozzle on the horizontal plane to be adjusted arbitrarily within a certain range, ensuring that the nozzle can more accurately approach the gear and rack meshing area.

[0011] Preferably, the base is provided with a first fixing bolt, which passes through the base and abuts against the base slide rail, and the slide support arm is provided with a second fixing bolt, which passes through the slide support arm and abuts against the movable slide rail.

[0012] By adopting the above technical solution, the base and the slide are fastened together by the first fixing bolt and the slide support arm and the slide are fastened together by the second fixing bolt, ensuring the reliability of the connection between the base and the slide and the slide support arm and the slide, and effectively preventing the slide rail displacement caused by the vibration of the offshore platform.

[0013] Preferably, the slide support arm is provided with a rotating shaft at its end, and the rotating block is rotatably assembled to the end of the slide support arm via the rotating shaft, with fixing nuts provided at both ends of the rotating shaft.

[0014] By adopting the above technical solution, the rotating shaft provides the rotating block with the freedom of axial rotation. Combined with the fixing nut, the oil injection device can be fixed after reaching a suitable height, which significantly improves the accuracy of oil injection.

[0015] Preferably, the slide support arm is provided with a support bolt, which passes through the slide support arm and abuts against the rotating block.

[0016] By adopting the above technical solution, the support bolts are abutted against the bottom of the rotating block, which can form a stable support for the rotating block, effectively preventing angular deviation caused by mechanical vibration during the spraying operation and ensuring accurate spraying of lubricant.

[0017] Preferably, an anti-slip nut is installed at the end of the support bolt.

[0018] By adopting the above technical solution, the supporting effect of the support bolts can be further enhanced, allowing the nozzle to maintain a fixed spray angle for a longer period of time, thereby improving the accuracy and effect of the spray.

[0019] Preferably, the rotating block has two connecting plates at the end away from the slide support arm, and a first mounting plate is provided between the two connecting plates. Both connecting plates have an oblong hole, and an adjusting bolt is connected between the connecting plate and the first mounting plate. The adjusting bolt passes through the oblong hole and the first mounting plate respectively.

[0020] By adopting the above technical solution, the position of the oil injection device and nozzle can be adjusted by using the adjusting bolts and oblong holes between the first mounting plate and the connecting plate for precise movement, thereby achieving precise control of the nozzle position and further improving the oil injection accuracy.

[0021] Preferably, a second mounting plate is detachably mounted on one end of the first mounting plate, and the oil injection device is mounted on the second mounting plate.

[0022] By adopting the above technical solution, the rapid disassembly and assembly of the fuel injection device can be achieved while ensuring connection strength. This facilitates emergency maintenance and component replacement when the fuel injection device malfunctions, significantly shortening the equipment maintenance cycle.

[0023] In summary, this application includes at least one of the following beneficial technical effects:

[0024] 1. The lubricating oil injection mechanism has achieved multi-degree-of-freedom adjustment function, which allows the oil injection device to flexibly adjust its position and angle. This avoids the need for operators to align the gear and rack meshing area from the outside, which would result in poor oil injection accuracy and low oil injection efficiency. At the same time, after the lubricating oil injection mechanism is assembled, it can avoid the need for operators to repeatedly spray oil, which greatly improves the convenience of oil injection and lubrication.

[0025] 2. The sliding fit between the base and the base slide rail enables the entire oil injection device to move closer to or further away from the hatch. The sliding assembly of the slide table support arm and the moving slide rail, together with the base slide rail, allows the position of the nozzle on the horizontal plane to be adjusted arbitrarily within a certain range, ensuring that the nozzle can be more accurately close to the gear and rack meshing area.

[0026] 3. By providing the rotating block with the axial rotational freedom through the rotating shaft, and in conjunction with the fixing nut, the oil injection device can be fixed after reaching the appropriate height, which significantly improves the accuracy of oil injection. Attached Figure Description

[0027] Figure 1 This is an isometric drawing of this utility model;

[0028] Figure 2 This is another perspective view of this utility model.

[0029] Reference numerals: 0. hatch; 1. base; 2. slide table; 21. base slide rail; 22. moving slide rail; 3. slide table support arm; 4. rotating block; 41. connecting plate; 5. oil spraying device; 6. nozzle; 7. first fixing bolt; 8. rotating shaft; 9. support bolt; 10. first mounting plate; 11. adjusting bolt; 12. oblong hole; 13. quick release bolt; 14. second mounting plate; 15. fixing nut; 16. second fixing bolt; 17. anti-slip nut. Detailed Implementation

[0030] The following is in conjunction with the appendix Figure 1 - Appendix Figure 2 This application will be described in further detail.

[0031] This application discloses a lubricating oil injection structure for offshore platforms.

[0032] A lubricating oil injection mechanism for an offshore platform includes a base 1, a slide 2, a slide support arm 3, a rotating block 4, and an oil injection device 5. The base 1 is mounted inside the hatch 0. One end of the slide 2 is slidably mounted on the base 1, and the other end is slidably mounted on the slide support arm 3. The rotating block 4 is rotatably mounted on the slide support arm 3. The oil injection device 5 is connected to the rotating block 4 and has a nozzle 6. The oil injection device 5 is connected to an external oil supply device.

[0033] During use, assemble each component in sequence and adjust the relative positions of slide 2, slide support arm 3, and rotating block 4 during assembly so that nozzle 6 is aligned with the gear and rack meshing area. When lubrication of the meshing area is required, drive the external oil supply device to spray oil directly onto the meshing area from nozzle 6, eliminating the need for repeated manual operation and making oil spraying more convenient and efficient. At the same time, through multi-degree-of-freedom adjustment, nozzle 6 can be precisely pointed to the gear and rack meshing area to ensure the accuracy of oil spraying.

[0034] The slide table 2 has an overall L-shaped structure, including a base slide rail 21 and a moving slide rail 22. The angle between the base slide rail 21 and the moving slide rail 22 is 90°. One end of the moving slide rail 22 is connected to one end of the base slide rail 21 to form an L-shaped structure. The base 1 is slidably mounted on the base slide rail 21, and the slide table support arm 3 is slidably mounted on the moving slide rail 22. Through the relative sliding between the base slide rail 21 and the base 1, the entire slide table 2 and the oil injection device 5 are moved towards or away from the hatch 0. The slide table support arm 3 can slide along the moving slide rail 22. In conjunction with the base slide rail 21, the position of the nozzle 6 on the horizontal plane can be adjusted arbitrarily within a certain range to ensure that the nozzle 6 can more accurately approach the gear and rack meshing area.

[0035] The base 1 is provided with two first fixing bolts 7, which pass through the base 1 and abut against the base slide rail 21 to fix the slide table 2 and the base 1. The slide table support arm 3 is provided with two second fixing bolts 16, which pass through the slide table support arm 3 and abut against the movable slide rail 22. After the oil injection device 5 is adjusted to the correct position, tighten the first fixing bolts 7 and the second fixing bolts 16 so that the first fixing bolts 7 abut against the base slide rail 21 and the second fixing bolts 16 abut against the movable slide rail 22, thereby fixing the relative positions between the base 1, the slide table 2 and the slide table support arm 3, so that the nozzle 6 can be stably maintained near the gear and rack meshing area.

[0036] Reference Figure 2 The slide support arm 3 has a rotating shaft 8 at one end, and a rotating block 4 is rotatably mounted on the end of the slide support arm 3 away from the slide 2 via the rotating shaft 8. Rotating the rotating block 4 can indirectly drive the oil injection device 5 and the nozzle 6 to rotate, thereby adjusting the spray angle of the nozzle 6 and further improving the multi-degree-of-freedom adjustment capability of the lubricating oil injection mechanism. In addition, there are fixing nuts 15 at both ends of the rotating shaft 8. By tightening the two fixing nuts 15, the slide support arm 3 clamps the rotating block 4 inward to fix the position of the rotating block 4, so that the nozzle 6 is stably maintained at a reasonable spray angle.

[0037] Furthermore, a support bolt 9 is inserted through the slide support arm 3. The support bolt 9 is vertically inserted through the slide support arm 3 and abuts against the bottom of the rotating block 4 to form a fulcrum. The support bolt 9 is threadedly engaged with the slide support arm 3. Rotating the support bolt 9 can adjust the length of the extended support bolt 9, thereby changing the height of the fulcrum to adapt to different postures of the rotating block 4. Because the operation of the offshore platform mechanism will generate vibrations, the position of the rotating block 4 will gradually loosen over time, causing the spray angle of the nozzle 6 to deviate, and may even cause the nozzle 6 to extend into the gear and rack meshing area, causing the mechanism to jam or be damaged. By using the support bolt 9 abutting against the bottom of the rotating block 4, a stable support can be formed for the rotating block 4, effectively preventing the rotating block 4 from moving downward due to equipment vibration.

[0038] In addition, two anti-slip nuts 17 are installed at the end of the support bolt 9. The anti-slip nuts 17 are located above the slide support arm 3, and their bottoms abut against the slide support arm 3. At the same time, the anti-slip nuts 17 can further enhance the support effect of the support bolt 9, so that the nozzle 6 can maintain a fixed spray angle for a long time, thereby improving the accuracy and effect of spraying.

[0039] Two connecting plates 41 are provided at the end of the rotating block 4 away from the slide support arm 3. The two connecting plates 41 and the rotating block 4 form a U-shaped structure. A first mounting plate 10 is provided in the opening of the U-shaped structure. The oil injection device 5 and its nozzle 6 are connected to the first mounting plate 10. Each of the two connecting plates 41 has two parallel oblong holes 12, and the oblong holes 12 on the two connecting plates 41 are in one-to-one correspondence. Two adjusting bolts 11 are connected between the two connecting plates 41 and the first mounting plate 10. The adjusting bolts 11 pass through the oblong holes 12 and the first mounting plate 10 located in the U-shaped opening, and a locking nut is screwed onto the adjusting bolts 11. By adjusting the position of the first mounting plate 10 in the U-shaped opening using the adjusting bolts 11 and the oblong holes 12, the position of the oil injection device 5 and the nozzle 6 can be adjusted, achieving precise control of the position of the nozzle 6 and further improving the oil injection accuracy.

[0040] A second mounting plate 14 is detachably mounted on one end of the first mounting plate 10. The oil injection device 5 is fixed on the second mounting plate 14. A quick-release bolt 13 connects the second mounting plate 14 and the first mounting plate 10. When the oil injection device 5 malfunctions, the second mounting plate 14 can be removed from the first mounting plate 10 for maintenance and repair without disassembling other structures, thus improving the convenience of maintenance. After maintenance, the second mounting plate 14 can be directly fixed to the first mounting plate 10 without adjusting the position of each connecting component, greatly improving the convenience of maintenance.

[0041] The implementation principle of this application embodiment is as follows: First, the base 1 is fixed inside the hatch 0. The base slide rail 21 of the L-shaped slide table 2 is slidably assembled with the base 1. Then, the first fixing bolt 7 is installed on the base 1 and temporarily kept loose. Next, the movable slide rail 22 is embedded in the slide table support arm 3 and initially connected by two second fixing bolts 16. Then, the rotating block 4 is fitted into the end of the slide table support arm 3 using the rotating shaft 8. After inserting the rotating shaft 8, the support bolt 9 is installed so that the bolt ends face the bottom surface of the rotating block 4. Finally, the first mounting plate 10 is connected to the connecting plate 41 by two adjusting bolts 11. The adjusting bolts 11 are passed through the two oblong holes 12 and the first mounting plate 10 respectively, and the first mounting plate 10 and the second mounting plate 14 are connected. The installation and calibration of the oil injection device 5 on the second mounting plate 14 are completed. Finally, the bolts that are temporarily kept loose are tightened to complete the assembly of the lubricating oil injection structure.

[0042] When the gear and rack meshing area needs lubrication, the external oil supply device is driven to spray lubricating oil directly onto the gear and rack meshing area through the nozzle 6 of the oil spraying device 5, eliminating the need for repeated manual operation.

[0043] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A lubricating oil injection structure for offshore platforms, characterized in that, It includes a base (1), a slide (2), a slide support arm (3), a rotating block (4), and an oil injection device (5). The base (1) is installed inside the hatch (0). One end of the slide (2) is slidably mounted on the base (1), and the other end is slidably mounted on the slide support arm (3). The rotating block (4) is rotatably mounted on the slide support arm (3). The oil injection device (5) is connected to the rotating block (4). The oil injection device (5) has a nozzle (6) that points towards the gear and rack meshing area.

2. The lubricating oil injection structure for offshore platforms according to claim 1, characterized in that, The slide (2) includes a base slide rail (21) and a movable slide rail (22). The base (1) is slidably mounted on the base slide rail (21), and the slide support arm (3) is slidably mounted on the movable slide rail (22). The base slide rail (21) and the movable slide rail (22) are perpendicular to each other.

3. The lubricating oil injection structure for offshore platforms according to claim 2, characterized in that, The base (1) is provided with a first fixing bolt (7), which passes through the base (1) and abuts against the base slide rail (21). The slide support arm (3) is provided with a second fixing bolt (16), which passes through the slide support arm (3) and abuts against the movable slide rail (22).

4. The lubricating oil injection structure for offshore platforms according to claim 1, characterized in that, The slide support arm (3) is provided with a rotating shaft (8) at its end. The rotating block (4) is rotatably mounted on the end of the slide support arm (3) via the rotating shaft (8). The rotating shaft (8) is provided with fixing nuts (15) at both ends.

5. The lubricating oil injection structure for offshore platforms according to claim 1, characterized in that, The slide support arm (3) is provided with a support bolt (9), which passes through the slide support arm (3) and abuts against the bottom of the rotating block (4).

6. The lubricating oil injection structure for offshore platforms according to claim 5, characterized in that, An anti-slip nut (17) is installed at the end of the support bolt (9).

7. The lubricating oil injection structure for offshore platforms according to claim 2, characterized in that, The rotating block (4) is provided with two connecting plates (41) at the end away from the slide support arm (3). A first mounting plate (10) is provided between the two connecting plates (41). Both connecting plates (41) are provided with waist-shaped holes (12). An adjusting bolt (11) is connected between the connecting plate (41) and the first mounting plate (10). The adjusting bolt (11) passes through the waist-shaped hole (12) and the first mounting plate (10) respectively.

8. The lubricating oil injection structure for offshore platforms according to claim 7, characterized in that, The first mounting plate (10) has a second mounting plate (14) detachably mounted on one end, and the oil injection device (5) is mounted on the second mounting plate (14).

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