Early warning device for wind load and overturning of derrick

Abstract

A derrick wind load and overturning early warning device comprises a derrick, a mounting seat arranged on the derrick and wind measuring mechanisms distributed on the mounting seat. The derrick comprises symmetrically arranged vertical beams and a mounting platform arranged between the two vertical beams, the inner wall of each vertical beam is provided with a cross beam above the mounting platform, and the mounting seat is arranged on the mounting platform. And the mounting seat is hollow. The wind measuring mechanism comprises a first connecting shaft rotationally arranged on the mounting base, one end of the first connecting shaft is located outside the mounting base, an avoiding groove is formed in the top face of the mounting base, a wind sensing plate is arranged at the position, corresponding to the avoiding groove, of the first connecting shaft, part of the wind sensing plate is located above the avoiding groove, and a rotary encoder is arranged on the outer wall of the mounting base. The first connecting shaft is inserted into the rotary encoder and is matched with the rotary encoder, and the rotary encoder is connected with a wire. The wind measuring mechanisms are arranged on the four sides of the mounting seat, so that real-time monitoring of wind loads in the front direction, the rear direction, the left direction and the right direction of the derrick is achieved, and the measuring effect is more accurate.

Description

A wind load warning device for a derrick and its overturning Technical Field

[0001] This utility model belongs to the field of oil extraction and repair, and in particular relates to a wind load warning device for a derrick and its overturning. Background Technology

[0002] Oil production and well workover are two crucial and closely linked operational stages in the petroleum industry. Oil well workover refers to the maintenance, repair, and modification of oil wells during the oil production process. Because oil wells are affected by various factors during long-term production, such as changes in formation pressure, reservoir blockage, and damage to downhole equipment, production can decline or even cease. Therefore, well workover operations are necessary to restore the well's normal production capacity. During well workover, derricks are typically used. To prevent overturning, the wind load on the derrick is often assessed using the experience of testing personnel. Simple tools and portable equipment are used to test the wind load on the derrick, requiring experienced personnel but introducing subjectivity and significant fluctuations in test data, leading to inaccurate results. Furthermore, the testing methods are time-consuming and inefficient. Summary of the Invention

[0003] The purpose of this utility model is to provide a wind load warning device for a derrick and its overturning, so as to solve the technical problems mentioned in the background art.

[0004] To achieve the above objectives, the specific technical solution of this utility model for a derrick wind load and its overturning early warning device is as follows:

[0005] A wind load and overturning warning device for a derrick includes a derrick, a mounting base on the derrick, and wind measuring mechanisms distributed on the mounting base. Four wind measuring mechanisms are distributed on the mounting base, each located on a different side of the mounting base. The derrick includes symmetrically arranged vertical beams and a mounting platform positioned between two vertical beams. A crossbeam is located above the mounting platform on the inner wall of each vertical beam. The mounting base is located on the mounting platform and is hollow. Each wind measuring mechanism includes a first connecting shaft rotatably mounted on the mounting base, with one end of the first connecting shaft located outside the mounting base. A clearance groove is formed on the top surface of the mounting base, and a wind-sensing plate is positioned on the first connecting shaft corresponding to the clearance groove, with a portion of the wind-sensing plate located above the clearance groove. A rotary encoder is located on the outer wall of the mounting base, and the first connecting shaft is inserted into and cooperates with the rotary encoder. A wire is connected to the rotary encoder. An electrical control box is located on the mounting base, connected to the wire, and the rotary encoder is connected to a ground computer.

[0006] Furthermore, the mounting base includes a base plate, a base disposed on the base plate, and a cover plate detachably disposed on the base plate via a connector. A first groove is formed within the base, and a mounting block is provided on one side of each edge of the first groove. Each mounting block has a mounting groove, and corresponding first arc-shaped grooves are formed on the mounting block and the side wall of the base. The cover plate includes a top cover detachably disposed on the base and protrusions on the top surface of the cover. Each protrusion is positioned corresponding to a mounting block, and the bottom surface of the protrusion is flush with the bottom surface of the top cover. A receiving groove corresponding to the mounting groove is formed on the protrusion, and semi-arc grooves are formed on the side wall of the top cover and on the protrusion corresponding to each first arc-shaped groove. The first arc-shaped groove and its corresponding first semi-arc groove mate. A bearing and an end cover are placed between the corresponding first arc-shaped groove and the first semi-arc groove, with the bearing located inside the end cover. A first connecting shaft rotates the base and the cover plate via the bearing, and the first connecting shaft passes through the end cover and is rotatably disposed therewith.

[0007] Furthermore, an adjustment assembly is provided between the base and the cover plate. This assembly includes a second arc-shaped groove on the mounting block and the side wall of the base, and matching second semi-arc grooves on the protrusion and the side wall of the top cover corresponding to each of the second arc-shaped grooves. A bearing and an end cap are placed between the corresponding second arc-shaped groove and the second semi-arc groove. The bearing is located inside the end cap, and a second connecting shaft is provided within the corresponding bearing. The second connecting shaft passes through its corresponding end cap and is rotatably mounted thereto. Adjacent first and second connecting shafts are connected via a transmission mechanism. An eccentric wheel is detachably mounted at the outer end of the second connecting shaft.

[0008] Furthermore, the transmission unit includes a small gear on the first connecting shaft and a large gear on the second connecting shaft, with adjacent small gears meshing with the large gear.

[0009] Furthermore, the mounting base is equipped with multiple overturning test mechanisms that cooperate with the crossbeam. Each overturning test mechanism includes a sensing rod that slides vertically on the top cover, a first capacitive sensing element located on the bottom surface of the sensing rod, a second capacitive sensing element located on the inner bottom surface of the base corresponding to the position of the first capacitive sensing element, a contact piece located on the top surface of the sensing rod, and a spring sleeved on the sensing rod between the top cover and the contact piece.

[0010] The wind load and overturning early warning device for a derrick of this utility model has the following advantages:

[0011] 1. This utility model enables real-time monitoring of wind load in four directions (front, back, left, and right) of the derrick by setting wind measuring mechanisms on all four sides of the mounting base, resulting in more accurate measurement results.

[0012] 2. By adjusting the components, the wind measuring mechanism can measure wind loads of different magnitudes, thereby improving the practicality of this early warning device.

[0013] 3. This utility model can detect the overturning angle of the derrick by setting up an inclination testing mechanism, so as to understand the stability of the derrick in real time. Attached Figure Description

[0014] Figure 1 is a schematic diagram of the structure of a derrick wind load and its overturning early warning device according to the present invention;

[0015] Figure 2 is a schematic diagram of the cover plate, base, electrical control box and clearance groove of this utility model;

[0016] Figure 3 is a schematic diagram of the overturning test mechanism of this utility model;

[0017] Figure 4 is a schematic diagram of the base plate and base of this utility model;

[0018] Figure 5 is a schematic diagram of the wind measuring mechanism and adjustment components of this utility model;

[0019] Figure 6 is a schematic diagram of the cover plate of this utility model.

[0020] Explanation of markings in the diagram:

[0021] 1. Base plate; 2. Base; 3. Cover plate; 31. Top cover; 32. Protrusion; 4. First groove; 5. Mounting block; 6. Mounting slot; 7. Electrical control box; 8. First arc groove; 9. Second arc groove; 10. Slot; 11. End cover; 111. Ring; 112. Snap ring; 12. Bearing; 13. First connecting shaft; 14. Pinion; 15. Second connecting shaft; 16. Large gear; 17. Eccentric wheel; 18. First placement 19. Second placement slot; 20. Bolt; 21. Air sensor plate; 22. Sensing rod; 23. First capacitive sensing element; 24. Second capacitive sensing element; 25. Contact piece; 26. Spring; 27. Clearance slot; 28. Derrick; 281. Vertical beam; 282. Mounting platform; 29. ​​Horizontal beam; 30. Rotary encoder; 301. Wire; 3001. Holding slot; 3002. First semi-circular slot; 33. Second semi-circular slot. Detailed Implementation

[0022] To better understand the purpose, structure, and function of this utility model, the following description, in conjunction with the accompanying drawings, provides a more detailed account of a derrick wind load and its overturning early warning device.

[0023] As shown in Figures 1 to 6, this utility model discloses a derrick wind load and overturning early warning device, comprising a derrick 28, a mounting base on the derrick 28, and wind measuring mechanisms distributed on the mounting base. The wind measuring mechanisms on the derrick 28 can detect the wind load on the derrick 28. Specifically, four wind measuring mechanisms are distributed on the mounting base, each located on a different side of the mounting base. By placing one wind measuring mechanism on each side of the mounting base, real-time monitoring of the wind load in four directions (front, back, left, and right) of the derrick 28 can be achieved, resulting in more accurate measurements.

[0024] Specifically, the derrick 28 includes symmetrically arranged vertical beams 281 and an installation platform 282 positioned between two vertical beams 281. A crossbeam 29 is located on the inner wall of each vertical beam 281 above the installation platform 282, and a mounting seat is placed on the installation platform 282. The mounting seat for mounting the wind measuring mechanism is hollow, and the wind measuring mechanism for detecting wind load includes a first connecting shaft 13 rotatably mounted on the mounting seat, with one end of the first connecting shaft 13 located outside the mounting seat. A clearance groove 27 is provided on the top surface of the mounting seat, and a wind-sensing plate 21 is provided on the first connecting shaft 13 corresponding to the clearance groove 27, with a portion of the wind-sensing plate 21 located above the clearance groove 27. As shown in Figures 2 and 3, a rotary encoder 30 is also provided on the outer wall of the mounting seat. The first connecting shaft 13 is inserted into and cooperates with the rotary encoder 30. An electrical control box 7 is located on the mounting seat, connected to the rotary encoder 30 via a wire 301, and the rotary encoder 30 is connected to a ground computer.

[0025] When the wind blows towards the derrick 28, the wind-sensing plate 21 will rotate around the axis of the first connecting shaft 13 due to the wind force, and the first connecting shaft 13 will also rotate. When the first connecting shaft 13 rotates, the rotary encoder 30 will detect the rotation angle of the first connecting shaft 13, and the rotary encoder 30 will send the detection information to the ground computer so that the operator can understand the wind load in real time.

[0026] Specifically, the mounting base includes a base plate 1, a base 2 mounted on the base plate 1, and a cover plate 3 detachably mounted on the base 2 via a connector. The base 2 has a first groove 4, and each side of the first groove 4 has a mounting block 5. Each mounting block 5 has a mounting groove 6, and corresponding first arc-shaped grooves 8 are formed on the side walls of the mounting blocks 5 and the base 2. The cover plate 3, used for connecting to the base 2, includes a top cover 31 detachably mounted on the base 2 and protrusions 32 on the top surface of the cover. Each protrusion 32 is positioned corresponding to a mounting block 5, and the bottom surface of the protrusion 32 is flush with the bottom surface of the top cover 31. A receiving groove 3001 corresponding to the mounting groove 6 is formed on the protrusion 32, and first semi-arc grooves 3002 corresponding to the first arc-shaped grooves 8 are formed on the side walls of the top cover 31 and the protrusion 32. The first arc-shaped grooves 8 and their corresponding first semi-arc grooves 3002 cooperate with each other. A bearing 12 and an end cap 11 are placed between the corresponding first arc groove 8 and the first semi-arc groove 3002, with the bearing 12 located inside the end cap 11. The first connecting shaft 13 rotates the base 2 and the cover plate 3 through the bearing 12, and the first connecting shaft 13 passes through the end cap 11 and is rotatably set therewith.

[0027] When the wind passes through the top surface of the top cover 31, it will blow the wind-sensing plate 21 exposed above the top surface of the top cover 31. At this time, the wind-sensing plate 21 will drive the first connecting shaft 13 to rotate, and the rotary encoder 30 will detect the angle of the first connecting shaft 13 to know the wind load.

[0028] As shown in Figures 2 and 3, a first placement groove 18 is formed on the side wall of the base 2, and a second placement groove 19 is formed on the side wall of the top cover 31 corresponding to the first placement groove 18. Simultaneously, through holes are formed in the first placement groove 18 and the second placement groove 19. The connecting components for the base 2 and the cover plate 3 are bolts and nuts threaded onto them. Bolts 20 can be inserted into the through holes of the first placement groove 18 and the second placement groove 19, and then the nuts are used to connect the base 2 and the top cover 31. To facilitate the fixing of the mounting base on the mounting platform 282, mounting holes are formed at the four corners of the base plate 1 of the mounting base.

[0029] Preferably, an adjustment assembly is provided between the base 2 and the cover plate 3. This assembly allows the wind measuring mechanism to measure wind loads of different magnitudes, thereby improving the practicality of the early warning device. Specifically, the adjustment assembly includes a second arc-shaped groove 9 formed on the side wall of the mounting block 5 and the base 2, and matching second semi-arc grooves 33 formed on the side wall of the protrusion 32 and the top cover 31 at corresponding positions of the second arc-shaped groove 9. A bearing 12 and an end cover 11 are placed between the corresponding second arc-shaped groove 9 and the second semi-arc groove 33, with the bearing 12 located inside the end cover 11. A second connecting shaft 15 is provided within the corresponding bearing 12, and the second connecting shaft 15 passes through its corresponding end cover 11 and is rotatably mounted thereto. Adjacent first connecting shafts 13 and second connecting shafts 15 are connected via a transmission part. Simultaneously, an eccentric wheel 17 is detachably provided at the outer end of the second connecting shaft 15.

[0030] When the first connecting shaft 13 rotates, it drives the second connecting shaft 15 connected to it to rotate via the transmission unit. When the second connecting shaft 15 rotates, the eccentric wheel 17 on it also rotates. The eccentric wheel 17 and the second connecting shaft 15 are connected by a thread. By replacing the eccentric wheel 17 on the second connecting shaft 15, wind loads of different magnitudes can be detected, further improving the practicality of this early warning device.

[0031] The aforementioned transmission unit includes a pinion 14 mounted on a first connecting shaft 13 and a large gear 16 mounted on a second connecting shaft 15, with adjacent pinions 14 meshing with the large gear 16. When the first connecting shaft 13 rotates, the pinion 14 mounted on the first connecting shaft 13 will rotate, and the large gear 16 meshing with it will also rotate. The rotation of the large gear 16 will drive the second connecting shaft 15 connected to it to rotate, thereby enabling the second connecting shaft 15 to drive the eccentric wheel 17 to rotate.

[0032] Specifically, the end cap 11 can limit the bearing 12. The end cap 11 used to limit the bearing 12 is composed of a ring 111 and a retaining ring 112 disposed outside the ring 111. The first arc groove 8, the second arc groove 9, the first semi-arc groove 3002 and the second semi-arc groove 33 are all provided with retaining grooves 10 for the retaining ring 112 to be installed. The retaining grooves 10 can limit the overall end cap 11, that is, the bearing 12 is limited on the base 2 and the cover plate 3 by the end cap 11.

[0033] As another preferred embodiment, the mounting base is equipped with multiple tilting test mechanisms that cooperate with the crossbeam 29. These tilting test mechanisms allow for the detection of the tilting angle of the derrick 28, providing real-time monitoring of its stability. Specifically, the tilting test mechanism includes a sensing rod 22 vertically slidably mounted on the top cover 31. A first capacitive sensing element 23 is located on the bottom surface of the sensing rod 22, and a second capacitive sensing element 24 is located on the inner bottom surface of the base 2, corresponding to the first capacitive sensing element 23. A contact piece 25 is located on the top surface of the sensing rod 22, and a spring 26 is fitted onto the sensing rod 22 between the top cover 31 and the contact piece 25. Both the first and second capacitive sensing elements 23 and 24 are connected to the electrical control box 7. When the derrick 28 tilts, the crossbeam 29 of the derrick 28 contacts the contact piece 25 and pushes the sensing rod 22 downwards. As the sensing rod 22 moves downwards, it compresses the spring 26. Furthermore, the distance between the first capacitive sensing element 23 at the bottom of the sensing rod 22 and the second capacitive sensing element 24 installed on the inner bottom surface of the base 2 changes, thereby causing a change in the electrical signal between the corresponding first capacitive sensing element 23 and second capacitive sensing element 24. When the set limit distance is reached, the signal is processed by the electrical control box 7 and sent to the ground computer to issue a warning of the derrick 28 overturning while monitoring the wind load in real time. The compressed spring 26 can cause the sensing rod 22 to move adaptively when the crossbeam 29 compresses the sensing rod 22 through the contact piece 25.

[0034] Usage: Secure the base plate 1 to the mounting platform 282 of the derrick 28 using bolts 20 through the mounting holes. Then, replace the eccentric wheel 17 on the second connecting shaft 15 according to different wind speeds. When wind blows across the wind-sensing plate 21, the wind-sensing plate 21 will drive the first connecting shaft 13 to rotate. The rotary encoder 30 will detect the angle of the rotating first connecting shaft 13 and send the detection signal to the ground computer through the electrical control box 7. Simultaneously, when the derrick 28 tilts, the crossbeam 29 on the derrick 28 will touch the contact piece 25 and push the sensing rod 22 downward. When the sensing rod 22 moves downward, it will compress the spring 26. Furthermore, the distance between the first capacitive sensing piece 23 at the bottom of the sensing rod 22 and the second capacitive sensing piece 24 installed on the bottom surface inside the base 2 changes, thereby changing the electrical signal between the corresponding first capacitive sensing piece 23 and second capacitive sensing piece 24. When the set limit distance is reached, the electrical control box 7 processes the signal and provides the ground computer with a warning of derrick 28 overturning while monitoring the wind load in real time.

[0035] It is understood that this utility model has been described through some embodiments, and those skilled in the art will recognize that various changes or equivalent substitutions can be made to these features and embodiments without departing from the spirit and scope of this utility model. Furthermore, under the teachings of this utility model, these features and embodiments can be modified to adapt to specific situations and materials without departing from the spirit and scope of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are within the protection scope of this utility model.

Claims

1. A wind load warning device for a derrick and its overturning warning device, characterized in that: The device includes a derrick (28), a mounting base on the derrick (28), and wind measuring mechanisms distributed on the mounting base. Four wind measuring mechanisms are distributed on the mounting base, each located on a side of the mounting base. The derrick (28) includes symmetrically arranged vertical beams (281) and a mounting platform (282) between two vertical beams (281). A crossbeam (29) is provided above the mounting platform (282) on the inner wall of each vertical beam (281). The mounting base is located on the mounting platform (282). The mounting base is hollow. The wind measuring mechanism includes a first connecting shaft (13) rotatably mounted on the mounting base. One end of the shaft (13) is located outside the mounting base. A clearance groove (27) is opened on the top surface of the mounting base. A wind-sensing plate (21) is provided on the first connecting shaft (13) corresponding to the clearance groove (27). Part of the wind-sensing plate (21) is located above the clearance groove (27). A rotary encoder (30) is provided on the outer wall of the mounting base. The first connecting shaft (13) is inserted into the rotary encoder (30) and cooperates with it. A wire (301) is connected to the rotary encoder (30). An electrical control box (7) is provided on the mounting base. The electrical control box (7) is connected to the wire (301). The rotary encoder (30) is connected to the ground computer.

2. The derrick wind load and overturning early warning device according to claim 1, characterized in that: The mounting base includes a base plate (1), a base (2) disposed on the base plate (1), and a cover plate (3) detachably disposed on the base (2) via a connector; the base (2) has a first groove (4) and a mounting block (5) is provided on one side of each side of the first groove (4), the mounting block (5) has a mounting groove (6) and a first arc groove (8) is provided on the side wall of the mounting block (5) and the base (2); the cover plate (3) includes a top cover (31) detachably disposed on the base (2) and a protrusion (32) disposed on the top surface of the cover, and each protrusion (32) is disposed corresponding to the position of each mounting block (5), and the bottom surface of the protrusion (32) is flush with the bottom surface of the top cover (31). The top cover (31) has a corresponding mounting groove (6) and a first semi-arc groove (3002) is opened on the side wall of the top cover (31) and the top cover (32) corresponding to each first arc groove (8). The first arc groove (8) and its corresponding first semi-arc groove (3002) are fitted together. A bearing (12) and an end cover (11) are placed between the corresponding first arc groove (8) and the first semi-arc groove (3002). The bearing (12) is located inside the end cover (11). The first connecting shaft (13) rotates the base (2) and the cover plate (3) through the bearing (12). The first connecting shaft (13) passes through the end cover (11) and is rotatably set with it.

3. The derrick wind load and overturning early warning device according to claim 2, characterized in that: An adjustment assembly is provided between the base (2) and the cover plate (3), and the adjustment assembly includes a second arc groove (9) opened on the side wall of the mounting block (5) and the base (2), and a matching second semi-arc groove (33) opened on the side wall of the protrusion (32) and the top cover (31) at the corresponding positions of the second arc groove (9). A bearing (12) and an end cover (11) are placed between the corresponding second arc groove (9) and the second semi-arc groove (33). The bearing (12) is located inside the end cover (11). A second connecting shaft (15) is provided in the corresponding bearing (12), and the second connecting shaft (15) passes through its corresponding end cover (11) and is rotatably set therewith. The adjacent first connecting shaft (13) and the second connecting shaft (15) are connected by a transmission part. An eccentric wheel (17) is detachably provided at the outer end of the second connecting shaft (15).

4. The derrick wind load and overturning early warning device according to claim 3, characterized in that: The transmission unit includes a small gear (14) on the first connecting shaft (13) and a large gear (16) on the second connecting shaft (15), and adjacent small gears (14) mesh with large gears (16).

5. The derrick wind load and overturning early warning device according to claim 4, characterized in that; The mounting base is provided with multiple overturning test mechanisms that cooperate with the crossbeam (29); the overturning test mechanism includes a sensing rod (22) that is vertically slidably mounted on the top cover (31), a first capacitive sensing plate (23) is provided on the bottom surface of the sensing rod (22), and a second capacitive sensing plate (24) is provided on the inner bottom surface of the base (2) corresponding to the position of the first capacitive sensing plate (23), a contact plate (25) is provided on the top surface of the sensing rod (22), and a spring (26) is sleeved on the sensing rod (22) between the top cover (31) and the contact plate (25).

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