Large drilling rig deflection monitoring control device and control method thereof

Abstract

The invention discloses a large-scale drilling rig deflection monitoring control device, which comprises a drilling rig body, and is characterized in that the drilling rig body is internally provided with multiple sections of subareas for deflection monitoring; the monitoring devices are arranged in the subareas and are used for extracting parameters of regional and overall deflection of the drilling rig body; relates to the technical field of large-scale drilling rig deflection monitoring. According to the invention, the drill stand body is internally provided with the subareas for multi-section deflection monitoring, the monitoring devices are arranged in the subareas and are used for the drill stand body to carry out parameter extraction of regional and overall deflection, and the monitoring algorithm is combined with the monitoring devices so that the drill stand body can carry out regional and overall deflection calculation; therefore, simple area monitoring can be carried out on the drilling rig body firstly, then area monitoring data of the drilling rig body are spliced, the overall deflection deformation condition of the drilling rig body is evaluated, the drilling rig monitoring means can be effectively simplified, the drilling rig monitoring time can be effectively optimized, and the drilling rig monitoring efficiency is improved.

Description

Technical Field

[0001] The invention relates to the technical field of large-scale drilling rig deflection monitoring, in particular to a large-scale drilling rig deflection monitoring control device and a control method thereof. Background Art

[0002] A large drilling rig is a type of equipment used for drilling operations, and is widely used in the fields of oil, natural gas, and mineral resources. It is usually composed of multiple components, including a drilling tower, a drilling rig, a control system, and auxiliary equipment. A large drilling rig is capable of deep drilling under various geological conditions, and is highly efficient, safe, and automated.

[0003] Large drilling rigs are generally used in the following occasions:

[0004] Oil and gas exploration: used to find and develop oil and gas resources.

[0005] Mining: Used to drill for ore bodies in order to extract ore.

[0006] Foundation Engineering: Used for drilling foundations in the construction of buildings, bridges and other infrastructure.

[0007] The existing large drilling rigs lack effective monitoring methods or means for the deflection of the drilling rigs during use, and manual tower climbing and measurement are required, which increases the danger of the operation and the labor intensity of the personnel, and there is room for improvement. Summary of the invention

[0008] The object of the present invention is to provide a large drilling rig deflection monitoring and control device and a control method thereof to solve the problems raised in the above background technology.

[0009] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a large-scale drilling rig deflection monitoring and control device, comprising a drilling rig body, wherein the interior of the drilling rig body is provided with partitions for multi-section deflection monitoring; a monitoring device, wherein the monitoring device is arranged in the partition and allows the drilling rig body to extract parameters of regional and overall deflection; and a monitoring algorithm, wherein the monitoring algorithm is combined with the monitoring device to allow the drilling rig body to calculate regional and overall deflection.

[0010] A large drilling rig deflection monitoring and control device and a control method thereof, comprising:

[0011] Step S1: a deflection monitoring mechanism is arranged in each monitoring section inside the large drilling rig, and the position of the deflection monitoring mechanism is adjusted by using an upper component, specifically, the upper component is driven to move in the monitoring section and the position of the upper component is adjusted by rotating the friction wheel body, and then the upper component and the monitoring section are locked by a support rod to fix the upper component;

[0012] Step S2: After the deflection monitoring mechanism is fixed, the servo motor drives the driving wheel ring to rotate, the driving wheel ring then drives the driving ring to rotate, and the driving ring then drives the friction monitoring component to rotate, so that the purpose of the monitoring component driving the optical monitor to rotate can be achieved, so that the deflection of each drill rack in the large drill rack can be monitored. Specifically, the optical monitor can emit infrared light to the large drill rack and receive the light that bounces back, and then judge whether the structure of the drill rack is bent by the time consumed by reception-rebound. If the reception time changes linearly, it indicates that the drill rack in the monitoring section changes monotonically with the receiving distance, that is, no deflection occurs or the deflection is small. Otherwise, it proves that the monitoring section is bent.

[0013] Step S3: After the regional deflection monitoring of each monitoring section is completed, it is necessary to arrange all the monitoring sections and monitor the deflection. Specifically, after the data of each monitoring section are connected in series, it is necessary to compare whether the data changes linearly or whether the data jump is too large. If the data changes nonlinearly, it proves that the large drilling rig has deflection deformation. If the data jump is too large, it proves that the adjustment position of the deflection monitoring mechanism is inaccurate, and it is necessary to find a position that can connect the data with the previous deflection monitoring mechanism, and then repeat the regional deflection monitoring to perform regional re-monitoring. After the monitoring is completed, the data of each section can be spliced.

[0014] As a further solution of the present invention: a large drilling rig deflection monitoring and control device, the drilling rig body includes a large drilling rig and drilling rig equipment, the large drilling rig is internally fixed with a monitoring section that isolates the drilling rig body, each of the monitoring sections is internally provided with a monitoring device for monitoring the deflection of the section, and each of the monitoring devices is combined with the monitoring of the overall deflection of the drilling rig body.

[0015] As a further solution of the present invention: a large drilling rig deflection monitoring and control device, the monitoring device includes a deflection monitoring mechanism, the deflection monitoring mechanism includes a monitoring chassis, a driving ring, an upper component, a monitoring component and an optical monitor, the monitoring chassis is mounted on the outside of the large drilling rig and is controlled to move or stop by the upper component, the driving ring is arranged on the periphery of the upper component and is used to drive the monitoring component to rotate, and the optical monitor is arranged inside the monitoring component and is used for visual sampling of the deflection of the large drilling rig.

[0016] As a further solution of the present invention: a large drilling rig deflection monitoring and control device, the upper component includes a support rod, a displacement sensor and a displacement friction wheel, a support rod accommodating cavity for accommodating the support rod is provided inside the upper component, the support rod is movably connected to the support rod accommodating cavity, a friction wheel accommodating cavity for accommodating the displacement friction wheel is provided inside the upper component, the displacement friction wheel is movably connected to the friction wheel accommodating cavity, the support rod and the displacement friction wheel, the support rod accommodating cavity and the friction wheel accommodating cavity are alternately arranged, and the displacement sensor is arranged on the same side as the displacement friction wheel.

[0017] As a further solution of the present invention: a large drilling rig deflection monitoring and control device, wherein a pressure monitoring unit is fixedly installed inside the friction wheel accommodating chamber, and the pressure monitoring unit includes a pressure monitor and a pressure monitoring contact head, the pressure monitor is fixedly connected to the upper component, the pressure monitoring contact head is fixedly connected to the pressure monitor, and the pressure monitoring contact head is movably connected to the displacement friction wheel.

[0018] As a further solution of the present invention: a large drilling rig deflection monitoring and control device, the displacement friction wheel includes a friction wheel body and a friction wheel end tube, the friction wheel body is movably connected to the friction wheel accommodating cavity, and the friction wheel body is rotationally connected to the friction wheel end tube.

[0019] As a further solution of the present invention: a large drilling rig deflection monitoring and control device also includes a spring, one end of which is fixedly connected to the upper component, and the other end of which is fixedly connected to the friction wheel end tube.

[0020] As a further solution of the present invention: a large drilling rig deflection monitoring and control device, a servo motor is fixedly installed inside the upper component, the output end of the servo motor is fixedly connected to a driving rim, and the driving rim is adapted to the driving ring.

[0021] Compared with the prior art, the present invention has the following beneficial effects:

[0022] 1. Since the interior of the drill rig body is provided with partitions for multi-section deflection monitoring, the monitoring device is arranged in the partition and is used for extracting parameters of regional and overall deflection of the drill rig body, and the monitoring algorithm is combined with the monitoring device for calculating regional and overall deflection of the drill rig body. Therefore, it is possible to first perform simple regional monitoring on the drill rig body, and then splice the regional monitoring data of the drill rig body to evaluate the overall deflection deformation of the drill rig body. This process can effectively simplify the monitoring means of the drill rig, optimize the monitoring time of the drill rig, and improve the monitoring efficiency of the drill rig.

[0023] 2. Since the monitoring device includes a deflection monitoring mechanism, the deflection monitoring mechanism includes a monitoring chassis, a driving ring, an upper component, a monitoring component and an optical monitor; the monitoring chassis is mounted on the outside of the large drilling rig and is controlled to move or stop by the upper component; the driving ring is arranged on the periphery of the upper component and is used for rotational drive of the monitoring component; the optical monitor is arranged inside the monitoring component and is used for visual sampling of the deflection of the large drilling rig; therefore, the deflection monitoring mechanism can stop or move arbitrarily within the monitoring section, and there is no need for personnel to climb the tower for monitoring, which effectively improves the convenience and safety of monitoring.

[0024] 3. After the data of each monitoring section are connected in series, it is necessary to compare whether the data changes linearly or whether the data jump is too large. If the data changes nonlinearly, it proves that the large drilling rig has flexural deformation. If the data jump is too large, it proves that the adjustment position of the flexural monitoring mechanism is inaccurate, and it is necessary to connect the data with the previous flexural monitoring mechanism, and then repeat the regional flexural monitoring for regional re-monitoring. After the monitoring is completed, the data of each section can be spliced. Therefore, after the regional flexural monitoring of each monitoring section is completed, it is necessary to arrange all monitoring sections and monitor the flexural degree to reversely verify whether the regional flexural degree monitoring is correct, thereby effectively improving the overall monitoring accuracy of the drilling rig. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the overall structure of a large drilling rig deflection monitoring and control device and a control method thereof according to the present invention;

[0026] Figure 2 It is a structural schematic diagram of a deflection monitoring mechanism in a large drilling rig deflection monitoring and control device and a control method thereof according to the present invention;

[0027] Figure 3 This is one of the structural schematic diagrams of the upper components in a large drilling rig deflection monitoring and control device and a control method thereof according to the present invention;

[0028] Figure 4 This is a second structural schematic diagram of an upper component in a large drilling rig deflection monitoring and control device and a control method thereof according to the present invention;

[0029] Figure 5 This is a third structural schematic diagram of an upper component in a large drilling rig deflection monitoring and control device and a control method thereof according to the present invention;

[0030] Figure 6 It is a structural schematic diagram of a driving circle and a monitoring component in a large drilling rig deflection monitoring and control device and a control method thereof of the present invention;

[0031] In the figure: 1. Large drilling rig; 2. Deflection monitoring mechanism; 3. Monitoring section; 4. Drilling rig equipment; 5. Monitoring chassis; 6. Driving ring; 7. Upper component; 71. Support rod; 72. Displacement sensor; 73. Displacement friction wheel; 731. Friction wheel body; 732. Friction wheel end tube; 74. Support rod accommodating chamber; 75. Friction wheel accommodating chamber; 76. Pressure monitoring unit; 761. Pressure monitor; 762. Pressure monitoring contact head; 77. Spring; 78. Driving wheel rim; 79. Servo motor; 8. Monitoring component; 9. Optical monitor. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0033] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, which are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance. In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", and "set" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, or it can be the internal connection of two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances. The following is an explanation of an embodiment of the present invention based on the overall structure of the present invention.

[0034] In an embodiment of the present invention, a large-scale drilling rig deflection monitoring and control device is characterized in that it includes a drilling rig body, wherein the interior of the drilling rig body is provided with partitions for multiple-section deflection monitoring;

[0035] A monitoring device, which is arranged in the partition and is used for extracting parameters of the regional and overall deflection of the drilling rig body; and

[0036] A monitoring algorithm is provided for the drilling rig body to perform regional and overall deflection calculations in combination with a monitoring device.

[0037] Since partitions for multi-section deflection monitoring are opened inside the drill rig body, the monitoring device is set in the partition and allows the drill rig body to extract regional and overall deflection parameters, and the monitoring algorithm is combined with the monitoring device to allow the drill rig body to calculate regional and overall deflection. Therefore, simple regional monitoring can be performed on the drill rig body first, and then the regional monitoring data of the drill rig body can be spliced ​​to evaluate the overall deflection deformation of the drill rig body. This process can effectively simplify the drill rig monitoring means and optimize the drill rig monitoring time, thereby improving the drill rig monitoring efficiency.

[0038] As a further solution of the present invention: a large drilling rig deflection monitoring and control device, the drilling rig body includes a large drilling rig 1 and a drilling rig equipment 4, the large drilling rig 1 has a monitoring section 3 fixedly installed inside for isolating the drilling rig body, each of the monitoring sections 3 is provided with a monitoring device for monitoring the deflection of the section, and each of the monitoring devices is combined with the monitoring of the overall deflection of the drilling rig body.

[0039] A large drilling rig deflection monitoring and control device and a control method thereof, comprising:

[0040] Step S1: The deflection monitoring mechanism 2 is arranged in each monitoring section 3 inside the large drilling rig 1, and the position of the deflection monitoring mechanism 2 is adjusted by using the upper component 7, specifically, the upper component 7 is driven to move in the monitoring section 3 and the position of the upper component 7 is adjusted by the rotation of the friction wheel body 731, and then the upper component 7 is locked with the monitoring section 3 by the support rod 71 to fix the upper component 7;

[0041] Step S2: After the deflection monitoring mechanism 2 is fixed, the servo motor 79 drives the driving wheel 78 to rotate, the driving wheel 78 then drives the driving ring 6 to rotate, and the driving ring 6 then drives the friction monitoring component 8 to rotate, so that the monitoring component 8 drives the optical monitor 9 to rotate, so that the deflection of each drill frame in the large drill frame 1 can be monitored. Specifically, the optical monitor 9 can emit infrared light to the large drill frame 1 and receive the light that bounces back, and then judge whether the structure of the drill frame is bent by the time consumed by reception-rebound. If the reception time changes linearly, it indicates that the drill frame in the monitoring section 3 changes monotonically with the receiving distance, that is, no deflection occurs or the deflection is small. Otherwise, it proves that the monitoring section 3 is bent.

[0042] Step S3: After the regional deflection monitoring of each monitoring section 3 is completed, it is necessary to arrange all the monitoring sections 3 and monitor the deflection. Specifically, after the data of each monitoring section 3 are connected in series, it is necessary to compare whether the data changes linearly or whether the data jump is too large. If the data changes nonlinearly, it proves that the large drilling rig 1 has deflection deformation. If the data jump is too large, it proves that the adjustment position of the deflection monitoring mechanism 2 is inaccurate, and it is necessary to find a position that can connect the data with the previous deflection monitoring mechanism 2, and then repeat the regional deflection monitoring to perform regional re-monitoring. After the monitoring is completed, the data of each section can be spliced.

[0043] As a further solution of the present invention: a large drilling rig deflection monitoring and control device, the monitoring device includes a deflection monitoring mechanism 2, the deflection monitoring mechanism 2 includes a monitoring chassis 5, a driving ring 6, an upper component 7, a monitoring component 8 and an optical monitor 9, the monitoring chassis 5 is mounted on the outside of the large drilling rig 1 and is controlled to move or stop by the upper component 7, the driving ring 6 is arranged on the periphery of the upper component 7 and is driven to rotate by the monitoring component 8, and the optical monitor 9 is arranged inside the monitoring component 8 and is used for visual sampling of the deflection of the large drilling rig 1.

[0044] Since the monitoring device includes a deflection monitoring mechanism 2, the deflection monitoring mechanism 2 includes a monitoring chassis 5, a driving ring 6, an upper component 7, a monitoring component 8 and an optical monitor 9, the monitoring chassis 5 is mounted on the outside of the large drilling rig 1 and is controlled to move or stop through the upper component 7, the driving ring 6 is arranged on the periphery of the upper component 7 and is used for rotational drive of the monitoring component 8, and the optical monitor 9 is arranged inside the monitoring component 8 and is used for visual sampling of the deflection of the large drilling rig 1, so the deflection monitoring mechanism 2 can stop or move arbitrarily within the monitoring section 3, and there is no need for personnel to climb the tower for monitoring, which effectively improves the convenience and safety of monitoring.

[0045] As a further solution of the present invention: a large drilling rig deflection monitoring and control device, the upper component 7 includes a support rod 71, a displacement sensor 72 and a displacement friction wheel 73, a support rod accommodating chamber 74 for accommodating the support rod 71 is provided inside the upper component 7, the support rod 71 is movably connected to the support rod accommodating chamber 74, a friction wheel accommodating chamber 75 for accommodating the displacement friction wheel 73 is provided inside the upper component 7, the displacement friction wheel 73 is movably connected to the friction wheel accommodating chamber 75, the support rod 71 and the displacement friction wheel 73, the support rod accommodating chamber 74 and the friction wheel accommodating chamber 75 are alternately arranged, and the displacement sensor 72 and the displacement friction wheel 73 are arranged on the same side.

[0046] As a further solution of the present invention: a large drilling rig deflection monitoring and control device, wherein a pressure monitoring unit 76 is fixedly installed inside the friction wheel accommodating chamber 75, and the pressure monitoring unit 76 includes a pressure monitor 761 and a pressure monitoring contact head 762, the pressure monitor 761 is fixedly connected to the upper component 7, the pressure monitoring contact head 762 is fixedly connected to the pressure monitor 761, and the pressure monitoring contact head 762 is movably connected to the displacement friction wheel 73.

[0047] As a further solution of the present invention: a large drilling rig deflection monitoring and control device, the displacement friction wheel 73 includes a friction wheel body 731 and a friction wheel end tube 732, the friction wheel body 731 is movably connected to the friction wheel accommodating chamber 75, and the friction wheel body 731 is rotationally connected to the friction wheel end tube 732.

[0048] As a further solution of the present invention: a large drilling rig deflection monitoring and control device also includes a spring 77, one end of the spring 77 is fixedly connected to the upper component 7, and the other end is fixedly connected to the friction wheel end tube 732.

[0049] As a further solution of the present invention: a large drilling rig deflection monitoring and control device, a servo motor 79 is fixedly installed inside the upper component 7, and the output end of the servo motor 79 is fixedly connected to a driving wheel rim 78, and the driving wheel rim 78 is adapted to the driving ring 6.

[0050] After the data of each monitoring section 3 are connected in series, it is necessary to compare whether the data changes linearly or whether the data jump is too large. If the data changes nonlinearly, it proves that the large drilling rig 1 has flexural deformation. If the data jump is too large, it proves that the adjustment position of the flexural monitoring mechanism 2 is inaccurate, and it is necessary to carry out a position that can connect the data with the previous flexural monitoring mechanism 2, and then repeat the regional flexural degree monitoring to perform regional re-monitoring. After the monitoring is completed, the data of each section can be spliced. Therefore, after the regional flexural monitoring of each monitoring section 3 is completed, it is necessary to arrange all monitoring sections 3 and monitor the flexural degree to reversely verify whether the regional flexural degree monitoring is correct, thereby effectively improving the overall monitoring accuracy of the drilling rig.

[0051] The working principle of the present invention is as follows: since partitions for multi-section deflection monitoring are opened inside the drill rig body, the monitoring device is arranged in the partition and provides the drill rig body with parameters for regional and overall deflection extraction, and the monitoring algorithm is combined with the monitoring device to provide the drill rig body with regional and overall deflection calculation. Therefore, simple regional monitoring can be performed on the drill rig body first, and then the regional monitoring data of the drill rig body can be spliced ​​to evaluate the overall deflection deformation of the drill rig body. This process can effectively simplify the drill rig monitoring means and optimize the drill rig monitoring time, thereby improving the drill rig monitoring efficiency.

[0052] Since the monitoring device includes a deflection monitoring mechanism 2, the deflection monitoring mechanism 2 includes a monitoring chassis 5, a driving ring 6, an upper component 7, a monitoring component 8 and an optical monitor 9, the monitoring chassis 5 is mounted on the outside of the large drilling rig 1 and is controlled to move or stop through the upper component 7, the driving ring 6 is arranged on the periphery of the upper component 7 and is used for rotational drive of the monitoring component 8, and the optical monitor 9 is arranged inside the monitoring component 8 and is used for visual sampling of the deflection of the large drilling rig 1, so the deflection monitoring mechanism 2 can stop or move arbitrarily within the monitoring section 3, and there is no need for personnel to climb the tower for monitoring, which effectively improves the convenience and safety of monitoring.

[0053] After the data of each monitoring section 3 are connected in series, it is necessary to compare whether the data changes linearly or whether the data jump is too large. If the data changes nonlinearly, it proves that the large drilling rig 1 has flexural deformation. If the data jump is too large, it proves that the adjustment position of the flexural monitoring mechanism 2 is inaccurate, and it is necessary to carry out a position that can connect the data with the previous flexural monitoring mechanism 2, and then repeat the regional flexural degree monitoring to perform regional re-monitoring. After the monitoring is completed, the data of each section can be spliced. Therefore, after the regional flexural monitoring of each monitoring section 3 is completed, it is necessary to arrange all monitoring sections 3 and monitor the flexural degree to reversely verify whether the regional flexural degree monitoring is correct, thereby effectively improving the overall monitoring accuracy of the drilling rig.

[0054] What is described above is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A large drilling rig deflection monitoring and control device, characterized in that , including a drilling frame body, wherein the interior of the drilling frame body is provided with partitions for multiple-section deflection monitoring; A monitoring device, which is arranged in the partition and is used for extracting parameters of the regional and overall deflection of the drilling rig body; as well as A monitoring algorithm is provided for the drilling rig body to perform regional and overall deflection calculations in combination with a monitoring device.

2. A large drilling rig deflection monitoring and control device according to claim 1, characterized in that: The drilling rig body comprises a large drilling rig (1) and drilling rig equipment (4). A monitoring section (3) is fixedly installed inside the large drilling rig (1) to isolate the drilling rig body. Each monitoring section (3) is provided with a monitoring device for monitoring the deflection of the section. Each monitoring device is combined with the drilling rig body to monitor the overall deflection.

3. A large drilling rig deflection monitoring and control device according to claim 2, characterized in that: The monitoring device comprises a deflection monitoring mechanism (2), wherein the deflection monitoring mechanism (2) comprises a monitoring chassis (5), a driving ring (6), an upper component (7), a monitoring component (8) and an optical monitor (9); the monitoring chassis (5) is sleeved on the outside of a large drilling rig (1) and is controlled to move or stop by the upper component (7); the driving ring (6) is arranged on the periphery of the upper component (7) and is used to drive the monitoring component (8) to rotate; and the optical monitor (9) is arranged inside the monitoring component (8) and is used to visually sample the deflection of the large drilling rig (1).

4. A large drilling rig deflection monitoring and control device according to claim 3, characterized in that: The upper component (7) comprises a support rod (71), a displacement sensor (72) and a displacement friction wheel (73); a support rod accommodating chamber (74) for accommodating the support rod (71) is provided inside the upper component (7); the support rod (71) and the support rod accommodating chamber (74) are movably connected; a friction wheel accommodating chamber (75) for accommodating the displacement friction wheel (73) is provided inside the upper component (7); the displacement friction wheel (73) and the friction wheel accommodating chamber (75) are movably connected; the support rod (71) and the displacement friction wheel (73), the support rod accommodating chamber (74) and the friction wheel accommodating chamber (75) are alternately arranged; and the displacement sensor (72) and the displacement friction wheel (73) are arranged on the same side.

5. A large drilling rig deflection monitoring and control device according to claim 4, characterized in that: A pressure monitoring unit (76) is fixedly installed inside the friction wheel accommodating chamber (75), and the pressure monitoring unit (76) comprises a pressure monitor (761) and a pressure monitoring contact head (762). The pressure monitor (761) is fixedly connected to the upper component (7), the pressure monitoring contact head (762) is fixedly connected to the pressure monitor (761), and the pressure monitoring contact head (762) is movably connected to the displacement friction wheel (73).

6. A large drilling rig deflection monitoring and control device according to claim 5, characterized in that: The displacement friction wheel (73) comprises a friction wheel body (731) and a friction wheel end tube (732); the friction wheel body (731) is movably connected to the friction wheel accommodating chamber (75); and the friction wheel body (731) is rotationally connected to the friction wheel end tube (732).

7. A large drilling rig deflection monitoring and control device according to claim 6, characterized in that: It also includes a spring (77), one end of which is fixedly connected to the upper component (7) and the other end of which is fixedly connected to the friction wheel end tube (732).

8. A large drilling rig deflection monitoring and control device according to claim 7, characterized in that: A servo motor (79) is fixedly installed inside the upper component (7), and an output end of the servo motor (79) is fixedly connected to a driving wheel rim (78), and the driving wheel rim (78) is adapted to the driving ring (6).

9. A large drilling rig deflection monitoring and control device and control method thereof according to claim 8, characterized in that: include Step S1: The deflection monitoring mechanism (2) is arranged in each monitoring section (3) inside the large drilling rig (1), and the position of the deflection monitoring mechanism (2) is adjusted by using the upper component (7), specifically, the upper component (7) is driven to move in the monitoring section (3) and the position of the upper component (7) is adjusted by rotating the friction wheel body (731), and then the upper component (7) and the monitoring section (3) are locked by using the support rod (71) to fix the upper component (7); Step S2: After the deflection monitoring mechanism (2) is fixed, the servo motor (79) drives the driving wheel ring (78) to rotate, the driving wheel ring (78) then drives the driving ring (6) to rotate, and the driving ring (6) then drives the friction monitoring component (8) to rotate, so that the monitoring component (8) drives the optical monitoring instrument (9) to rotate, thereby monitoring the deflection of each drill frame in the large drill frame (1). Specifically, the optical monitoring instrument (9) can emit infrared light to the large drill frame (1) and receive the light that bounces back, and then judge whether the structure of the drill frame is bent by the time consumed by the reception-rebound. If the reception time changes linearly, it indicates that the drill frame in the monitoring section (3) changes monotonically with the change of the receiving distance, that is, no deflection occurs or the deflection is small. Otherwise, it proves that the monitoring section (3) is bent. Step S3: After the regional deflection monitoring of each monitoring section (3) is completed, it is necessary to arrange all the monitoring sections (3) and monitor the deflection. Specifically, after the data of each monitoring section (3) are connected in series, it is necessary to compare whether the data changes linearly or whether the data jump is too large. If the data changes nonlinearly, it proves that the large drilling rig (1) has deflection deformation. If the data jump is too large, it proves that the adjustment position of the deflection monitoring mechanism (2) is inaccurate, and it is necessary to find a position that can connect the data with the previous deflection monitoring mechanism (2), and then repeat the regional deflection monitoring to perform regional re-monitoring. After the monitoring is completed, the data of each section can be spliced.

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