Safety protection equipment for water drilling operation
By introducing components such as protective plates and mud scrapers into the underwater drilling equipment, the problem of mechanical wear caused by flying rocks and mud has been solved, thereby improving the stability and safety of the equipment.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-20
- Publication Date
- 2026-03-24
AI Technical Summary
Existing safety protection equipment for offshore drilling operations is prone to splashing rocks and mud into motor bearings or sealing parts during drilling, which can accelerate mechanical wear and potentially lead to equipment failure and safety accidents.
A safety protection device was designed, comprising components such as a support frame, a protective plate, a scraper, a protective shell, and a motor. The scraper blocks gravel and mud, and the motor drives the scraper to rotate and remove the attached materials. The protective shell structure reduces energy consumption during movement and forms a sealed space to prevent gravel from splashing.
It effectively prevents gravel and soil from entering mechanical parts, reduces mechanical wear, reduces energy consumption during operation, improves equipment stability and safety, and protects the safety of drilling personnel.
Smart Images
Figure CN224032574U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to a protective device, specifically a safety protection device for underwater drilling operations, belonging to the field of drilling operation technology. Background Technology
[0002] Drilling operations are high-risk offshore engineering activities that require systematic safety management and professional technical support. Safety protection equipment for drilling operations is a key piece of equipment to ensure the safety of personnel, equipment and environment, and must be designed for the special environment of offshore operations (such as wind, waves, water depth, weather changes, etc.).
[0003] Currently, existing safety protection equipment for underwater drilling operations suffers from the problem that flying debris and mud can easily enter motor bearings or seals during drilling, accelerating mechanical wear, increasing rotational resistance, causing abnormal heat generation, and potentially leading to equipment failure or even safety accidents. To address these issues, we have developed a safety protection device for underwater drilling operations. Utility Model Content
[0004] To address the aforementioned problems, this utility model provides a safety protection device for underwater drilling operations. The specific technical solution is as follows:
[0005] A safety protection device for underwater drilling operations includes a support frame, a first protective shell, and a second protective shell. A protective plate is movably fitted on the outer side of the support frame. A bearing is provided on the upper surface of the protective plate. A first gear ring is provided on the outer side of the bearing. A scraper is provided on the inner side of the first gear ring. The scraper is in the shape of a right-angled trapezoidal rod and contacts the lower surface of the protective plate. A mounting frame is provided on the upper surface of the protective plate relative to the first gear ring. A first motor is provided at the top of the mounting frame. A first gear is provided at the output end of the first motor and meshes with the first gear ring.
[0006] Preferably, the support frame is equipped with a power component inside, and a mounting plate is movably fitted inside the support frame, with the upper surface of the mounting plate connected to the output end of the power component.
[0007] Preferably, a drive motor is provided inside the mounting plate, and a drill rod is provided at the output end of the drive motor, with the drill rod moving through the interior of the protective plate.
[0008] Preferably, four sets of springs are provided on the outer side of the support frame, and the top of the springs are connected to the lower surface of the protective plate.
[0009] Preferably, the first protective shell is located on one side of the support frame, and two sets of guide grooves are opened through the interior of the first protective shell.
[0010] Preferably, a support plate is provided on the upper surface of the first protective shell, a second motor is provided at the top of the support plate, and a second gear is provided at the output end of the second motor.
[0011] Preferably, the second protective shell is disposed on the other side of the support frame, and the inner side of the second protective shell contacts the outer side of the first protective shell. An observation window is provided through the interior of the second protective shell, and the observation window is made of transparent material. A second toothed ring is provided on the outer side of the second protective shell. Two sets of positioning plates are provided on the inner side of the second protective shell, and the positioning plates are T-shaped and penetrate through the interior of the guide groove. Two sets of rollers are rotatably arranged inside the positioning plates, and the two sets of rollers roll in contact with the inner side of the first protective shell. Ball bearings are embedded through the interior of the positioning plates, and the ball bearings contact the inner wall of the guide groove.
[0012] Compared with the prior art, the present invention has the following beneficial effects:
[0013] 1. In this utility model, by setting up components such as a protective plate and a scraper, the protective plate can block the flying debris and mud during drilling, preventing the flying debris and mud from entering the motor bearings or sealing parts and accelerating mechanical wear. The scraper adopts a right-angled trapezoidal design, with a contact angle of 75° with the protective plate. When the scraper rotates, it effectively scrapes off some of the mud adhering to the small surface of the protective plate. The No. 1 gear at the No. 1 motor output end at the top of the mounting frame meshes with the No. 1 gear ring. The operation of the No. 1 motor can make the scraper rotate at a uniform speed, preventing the accumulation of mud on the lower surface of the scraper and affecting the normal use of the protective plate.
[0014] 2. In this utility model, by setting up components such as a No. 1 protective shell and a No. 2 protective shell, the No. 2 motor at the top of the support plate runs, and the rotation of the No. 2 gear can move the No. 2 gear ring. The "T"-shaped positioning plate structure, together with two sets of rollers and balls, can realize the conversion of sliding friction to rolling friction, which reduces the energy consumption of the No. 2 protective shell movement by 60%. After the No. 1 and No. 2 protective shells are closed, they form a sealed space, which effectively blocks flying debris and protects the safety of drilling workers. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0016] Figure 2 This is a schematic diagram of the support frame structure of this utility model;
[0017] Figure 3 This is a schematic diagram of the explosion structure of the No. 1 and No. 2 protective shells of this utility model;
[0018] Figure 4 This is a schematic diagram of the protective plate shearing structure of this utility model;
[0019] Figure 5 In this utility model Figure 2 A magnified view of the local structure at point A;
[0020] Figure 6 In this utility model Figure 3 A magnified view of the local structure at point B.
[0021] Figure descriptions: 1. Support frame; 2. Power assembly; 3. Mounting plate; 4. Drive motor; 5. Drill rod; 6. Protective plate; 7. Spring; 8. Bearing; 9. No. 1 gear ring; 10. Scraper blade; 11. Mounting frame; 12. No. 1 motor; 13. No. 1 gear; 14. No. 1 protective shell; 15. Guide groove; 16. Support plate; 17. No. 2 motor; 18. No. 2 gear; 19. No. 2 protective shell; 20. Observation window; 21. No. 2 gear ring; 22. Positioning plate; 23. Roller; 24. Ball bearing. Detailed Implementation
[0022] The present invention will now be further described with reference to the accompanying drawings.
[0023] Please see Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 A safety protection device for underwater drilling operations;
[0024] The system includes a support frame 1, a first protective shell 14, and a second protective shell 19. A protective plate 6 is movably fitted on the outer side of the support frame 1. A bearing 8 is provided on the upper surface of the protective plate 6. A first gear ring 9 is provided on the outer side of the bearing 8. A scraper 10 is provided on the inner side of the first gear ring 9. The scraper 10 is a right-angled trapezoidal rod and contacts the lower surface of the protective plate 6. A mounting frame 11 is provided on the upper surface of the protective plate 6 on the side opposite to the first gear ring 9. A first motor 12 is provided at the top of the mounting frame 11. A first gear 13 is provided at the output end of the first motor 12 and meshes with the first gear ring 9.
[0025] The protective plate 6 is a liftable arc-shaped steel plate (10mm thick), which is buffered by four sets of springs 7 (elastic coefficient 50N / mm) to absorb wave impact energy. The protective plate 6 can block the debris and mud splashed during drilling, preventing them from entering the motor bearings or sealing parts and accelerating mechanical wear. The drill rod 5 passes through the protective plate 6, and the remaining hole can be covered with a rubber pad. The first gear ring 9 is rotatably mounted on the upper surface of the protective plate 6 by means of bearing 8. The scraper 10 adopts a right-angled trapezoidal design and has a contact angle of 75° with the protective plate 6. When the scraper 10 rotates, it effectively scrapes off some of the mud attached to the small surface of the protective plate 6. The first gear 13 at the output end of the first motor 12 at the top of the mounting bracket 11 meshes with the first gear ring 9. The operation of the first motor 12 enables the scraper 10 to rotate at a uniform speed of 15rpm, preventing the accumulation of mud on the lower surface of the scraper 10 and affecting the normal use of the protective plate 6.
[0026] Please see Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 A safety protection device for underwater drilling operations;
[0027] The support frame 1 is equipped with a power component 2. The support frame 1 is fitted with a mounting plate 3, and the upper surface of the mounting plate 3 is connected to the output end of the power component 2. The mounting plate 3 is equipped with a drive motor 4, and the output end of the drive motor 4 is equipped with a drill rod 5, which moves through the interior of the protective plate 6. The support frame 1 is equipped with four sets of springs 7, and the top of the springs 7 is connected to the lower surface of the protective plate 6.
[0028] The support frame 1, as the main frame of the equipment, is welded with high-strength steel. The bottom is pre-loaded with counterweights to enhance the stability of the equipment when installed on the hull (for vessels in shallow waters). The power unit 2 uses a hydraulic drive system with an output pressure of up to 20MPa. It drives the drill rod 5 to achieve vertical feed movement through the mounting plate 3. The drive motor 4 (waterproof variable frequency motor (IP68)) has a power of 15kW and is equipped with an overheat protection module to ensure continuous and stable drilling power. The drive motor 4 drives the drill rod 5 to drill down, while the power unit 2 pushes the mounting plate 3 down to perform drilling operations using the drill rod 5. The spring 7 is used to provide elastic support for the protective plate 6. The spring 7 can use its elasticity to allow the protective plate 6 to elastically return to its original position after the compression is released.
[0029] Please see Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 A safety protection device for underwater drilling operations;
[0030] The first protective shell 14 is located on one side of the support frame 1. Two sets of guide grooves 15 are formed through the interior of the first protective shell 14. A support plate 16 is provided on the upper surface of the first protective shell 14. A second motor 17 is installed at the top of the support plate 16. A second gear 18 is installed at the output end of the second motor 17. The second protective shell 19 is located on the other side of the support frame 1, with its inner side contacting the outer side of the first protective shell 14. An observation window 2 is formed through the interior of the second protective shell 19. 0, and the observation window 20 is made of transparent material. The outer side of the second protective shell 19 is provided with a second toothed ring 21. The inner side of the second protective shell 19 is provided with two sets of locking plates 22. The locking plates 22 are T-shaped and penetrate the interior of the guide groove 15. The interior of the locking plates 22 is provided with two sets of rollers 23. The two sets of rollers 23 are in rolling contact with the inner side of the first protective shell 14. The interior of the locking plates 22 is embedded with ball bearings 24, and the ball bearings 24 are in contact with the inner wall of the guide groove 15.
[0031] The observation window 20, made of transparent material, allows for real-time display of the drill pipe 5's operating status, facilitating parameter adjustment by the operator. Two sets of "T"-shaped locking plates 22, located inside the second protective shell 19, extend through the guide groove 15. The embedded locking plates 22 allow the rotatable ball bearings 24 to contact the inner wall of the guide groove 15. Furthermore, the second gear ring 21 on the outer side of the second protective shell 19 meshes with the second gear 18. During the operation of the second motor 17 at the top of the support plate 16, the rotation of the second gear 18 can move the second... The movement of the toothed ring 21, combined with the "T"-shaped locking plate 22 and two sets of rollers 23 and balls 24, enables the conversion of sliding friction to rolling friction, reducing the energy consumption of the second protective shell 19 by 60% (compared to the traditional slider structure). This facilitates the rotation of the second protective shell 19 to the outside of the first protective shell 14 during the later use of the safety protection equipment. When the first protective shell 14 and the second protective shell 19 are closed, they form a sealed space (gap ≤ 2mm), effectively blocking flying debris and protecting the safety of drilling workers.
[0032] The electrical equipment mentioned in this application are all common electrical equipment in the prior art. This application will not elaborate on their models or internal structures, and they can also be replaced by other power sources.
[0033] The technical principles of this utility model have been described above with reference to specific embodiments. These descriptions are merely for explaining the principles of this utility model and should not be construed as limiting the scope of protection of this utility model in any way. Based on this explanation, those skilled in the art can readily conceive of other specific embodiments of this utility model without inventive effort, and these embodiments will all fall within the protection scope of the claims of this utility model.
Claims
1. A safety protection device for underwater drilling operations, comprising a support frame (1), a first protective shell (14), and a second protective shell (19), characterized in that: A protective plate (6) is movably sleeved on the outer side of the support frame (1). A bearing (8) is provided on the upper surface of the protective plate (6). A first gear ring (9) is provided on the outer side of the bearing (8). A scraper (10) is provided on the inner side of the first gear ring (9). The scraper (10) is in the shape of a right-angled trapezoidal rod and is in contact with the lower surface of the protective plate (6). A mounting bracket (11) is provided on the upper surface of the protective plate (6) relative to the first gear ring (9). A first motor (12) is provided at the top of the mounting bracket (11). A first gear (13) is provided at the output end of the first motor (12), and the first gear (13) meshes with the first gear ring (9).
2. The safety protection equipment for underwater drilling operations according to claim 1, characterized in that: The support frame (1) is equipped with a power component (2), and a mounting plate (3) is movably fitted inside the support frame (1), with the upper surface of the mounting plate (3) connected to the output end of the power component (2).
3. The safety protection equipment for underwater drilling operations according to claim 2, characterized in that: The mounting plate (3) is equipped with a drive motor (4), and the output end of the drive motor (4) is equipped with a drill rod (5), which moves through the interior of the protective plate (6).
4. The safety protection equipment for underwater drilling operations according to claim 1, characterized in that: Four sets of springs (7) are provided on the outside of the support frame (1), and the top of the springs (7) is connected to the lower surface of the protective plate (6).
5. The safety protection equipment for underwater drilling operations according to claim 1, characterized in that: The first protective shell (14) is located on one side of the support frame (1), and two sets of guide grooves (15) are opened through the interior of the first protective shell (14).
6. The safety protection equipment for underwater drilling operations according to claim 5, characterized in that: The upper surface of the first protective shell (14) is provided with a support plate (16), the top of the support plate (16) is provided with a second motor (17), and the output end of the second motor (17) is provided with a second gear (18).
7. The safety protection equipment for underwater drilling operations according to claim 6, characterized in that: The second protective shell (19) is set on the other side of the support frame (1), and the inner side of the second protective shell (19) is in contact with the outer side of the first protective shell (14). An observation window (20) is provided through the interior of the second protective shell (19), and the observation window (20) is made of transparent material. A second toothed ring (21) is provided on the outer side of the second protective shell (19). Two sets of positioning plates (22) are provided on the inner side of the second protective shell (19), and the positioning plates (22) are T-shaped and pass through the interior of the guide groove (15). Two sets of rollers (23) are rotatably provided inside the positioning plates (22), and the two sets of rollers (23) are in rolling contact with the inner side of the first protective shell (14). A ball bearing (24) is embedded through the interior of the positioning plates (22), and the ball bearing (24) is in contact with the inner wall of the guide groove (15).