A large drilling rig deflection monitoring control device and a control method thereof

Abstract

The application discloses a large-scale drilling rig deflection monitoring control device, which comprises a drilling rig body, the inside of the drilling rig body is provided with a partition for multi-section deflection monitoring; a monitoring device is arranged in the partition and is used for parameter extraction of the deflection of the drilling rig body in the region and as a whole; and relates to the technical field of large-scale drilling rig deflection monitoring. The inside of the drilling rig body is provided with a partition for multi-section deflection monitoring, the monitoring device is arranged in the partition and is used for parameter extraction of the deflection of the drilling rig body in the region and as a whole, and the monitoring algorithm is combined with the monitoring device to calculate the deflection of the drilling rig body in the region and as a whole, so that the drilling rig body can be subjected to simple regional monitoring first, then the regional monitoring data of the drilling rig body is spliced, the deflection deformation of the whole drilling rig body is evaluated, the drilling rig monitoring method can be effectively simplified, the drilling rig monitoring time can be optimized, and the drilling rig monitoring efficiency is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of large drilling rig deflection monitoring, and particularly relates to a large drilling rig deflection monitoring control device and a control method thereof. BACKGROUND

[0002] A large drilling rig is a device used for drilling operations and is widely used in the fields of oil, natural gas, mineral resources, etc. It is usually composed of multiple components, including a drilling tower, a drilling machine, a control system, and auxiliary equipment, etc. The large drilling rig can perform deep drilling under various geological conditions and has the characteristics of high efficiency, safety, and automation.

[0003] The large drilling rig is generally used in the following situations:

[0004] Oil and gas exploration: used for finding and developing oil and gas resources.

[0005] Mining: used for drilling ore bodies to extract minerals.

[0006] Foundation engineering: used for foundation drilling in construction, bridge, and other infrastructure construction.

[0007] The prior art large drilling rig lacks an effective monitoring method or means for the deflection of the drilling rig during use, and manual tower climbing measurement is required, which increases the risk of operation and the labor intensity of personnel, and there is room for improvement. SUMMARY

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

[0009] To achieve the above purpose, the present application provides the following technical solution: a large drilling rig deflection monitoring control device, comprising a drilling rig body, the inside of the drilling rig body is provided with a partition for multi-section deflection monitoring; a monitoring device, the monitoring device is arranged in the partition and is used for parameter extraction of the regional and overall deflection of the drilling rig body; and a monitoring algorithm, the monitoring algorithm is combined with the monitoring device to calculate the regional and overall deflection of the drilling rig body.

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

[0011] Step S1: The 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 the upper assembly, specifically by rotating the friction wheel body to drive the movement of the upper assembly in the monitoring section and adjust the position of the upper assembly, and then the upper assembly is locked with the monitoring section by using the supporting rod to fix the upper assembly;

[0012] Step S2: after the deflection monitoring mechanism is fixed, the driving wheel is driven to rotate by the servo motor, the driving wheel in turn drives the driving ring to rotate, the driving ring in turn drives the friction monitoring assembly to rotate, which can realize the purpose of rotating the optical monitoring instrument driven by the monitoring assembly, so that the deflection of each drill stand in the large drilling rig can be monitored, specifically, the optical monitoring instrument can emit infrared light to the large drilling rig and receive the rebounding light, then the time consumed by receiving-rebounding is used to judge whether the structure of the drilling rig is bent, if the receiving time changes linearly, it indicates that the drilling rig in the monitoring section changes monotonously with the receiving distance, that is, no deflection or small deflection occurs, otherwise, it proves that the monitoring section is deflected;

[0013] Step S3: after the regional deflection monitoring of each monitoring section is completed, all monitoring sections need to be arranged and the deflection is monitored, specifically, the data of each monitoring section is connected in series, then whether the data changes linearly or the data jump is too large is compared, if the data changes nonlinearly, it proves that the large drilling rig is deflected, if the data jump is too large, it proves that the adjusting position of the deflection monitoring mechanism is inaccurate, the position which can be connected with the data of the previous deflection monitoring mechanism needs to be adjusted, then the regional deflection monitoring is repeated for regional re-monitoring, after the monitoring is completed, the data of each section is spliced.

[0014] As a further scheme of the present application: a large drilling rig deflection monitoring control device, the drilling rig body includes a large drilling rig and a drilling rig equipment, a monitoring section isolated from the drilling rig body is fixedly installed in the large drilling rig, a monitoring device for monitoring the deflection of each section is arranged in each monitoring section, and each monitoring device monitors the overall deflection of the drilling rig body.

[0015] As a further scheme of the present application: a large drilling rig deflection monitoring control device, the monitoring device includes a deflection monitoring mechanism, the deflection monitoring mechanism includes a monitoring base, a driving ring, an upper assembly, a monitoring assembly and an optical monitoring instrument, the monitoring base is sleeved on the outside of the large drilling rig and is controlled to walk or stop through the upper assembly, the driving ring is arranged on the outer periphery of the upper assembly and drives the rotation of the monitoring assembly, and the optical monitoring instrument is arranged in the inside of the monitoring assembly and visually samples the deflection of the large drilling rig.

[0016] As a further scheme of the present application: a large drilling rig deflection monitoring control device, the upper assembly comprises a support rod, a displacement sensor and a displacement friction wheel, the inside of the upper assembly is provided with a support rod accommodating cavity accommodating the support rod, the support rod is movably connected with the support rod accommodating cavity, the inside of the upper assembly is provided with a friction wheel accommodating cavity accommodating the displacement friction wheel, the displacement friction wheel is movably connected with the friction wheel accommodating cavity, the support rod is arranged between the displacement friction wheel and the support rod accommodating cavity, and the support rod accommodating cavity and the friction wheel accommodating cavity are arranged between the displacement friction wheel and the support rod.

[0017] As a further scheme of the present application: a large drilling rig deflection monitoring control device, the inside of the friction wheel accommodating cavity is fixedly provided with a pressure monitoring unit, the pressure monitoring unit comprises a pressure monitor and a pressure monitoring contact head, the pressure monitor is fixedly connected with the upper assembly, the pressure monitoring contact head is fixedly connected with the pressure monitor, and the pressure monitoring contact head is movably connected with the displacement friction wheel.

[0018] As a further scheme of the present application: a large drilling rig deflection monitoring control device, the displacement friction wheel comprises a friction wheel body and a friction wheel end cylinder, the friction wheel body is movably connected with the friction wheel accommodating cavity, and the friction wheel body is rotatably connected with the friction wheel end cylinder.

[0019] As a further scheme of the present application: a large drilling rig deflection monitoring control device, further comprising a spring, one end of the spring is fixedly connected with the upper assembly, and the other end of the spring is fixedly connected with the friction wheel end cylinder.

[0020] As a further scheme of the present application: a large drilling rig deflection monitoring control device, the inside of the upper assembly is fixedly provided with a servo motor, the output end of the servo motor is fixedly connected with a driving wheel rim, and the driving wheel rim is matched with the driving ring.

[0021] Compared with the prior art, the present application has the following advantages:

[0022] 1. Since the inside of the drilling rig body is provided with a partition for multi-section deflection monitoring, the monitoring device is arranged in the partition and is used for parameter extraction of regional and overall deflection of the drilling rig body, and a monitoring algorithm is combined with the monitoring device to calculate the regional and overall deflection of the drilling rig body, so that the drilling rig body can be subjected to simple regional monitoring first, and then the regional monitoring data of the drilling rig body is spliced to evaluate the overall deflection of the drilling rig body, and the process can effectively simplify the drilling rig monitoring means and optimize the drilling rig monitoring time, and improve the drilling rig monitoring efficiency.

[0023] 2. Since the monitoring device includes a flexure monitoring mechanism, which comprises a monitoring chassis, a drive ring, an upper component, a monitoring component, and an optical monitor, the monitoring chassis is fitted onto the outside of the large drill frame and its movement or stopping is controlled by the upper component. The drive ring is located on the outer periphery of the upper component and is used to drive the monitoring component to rotate. The optical monitor is located inside the monitoring component and is used for visual sampling of the flexure of the large drill frame. Therefore, the flexure monitoring mechanism can stop or move arbitrarily within the monitoring section, and no personnel are required to climb the tower for monitoring, effectively improving the convenience and safety of monitoring.

[0024] 3. Since the data from each monitoring segment is chained together, it is necessary to compare whether the data changes linearly or whether the data jumps are too large. If the data changes nonlinearly, it proves that the large drill frame has flexural deformation. If the data jumps too large, it proves that the adjustment position of the flexural monitoring mechanism is inaccurate. It is necessary to find a position that can connect with the previous flexural monitoring mechanism, and then repeat the monitoring of the regional flexurality for regional re-monitoring. After the monitoring is completed, the data of each segment can be spliced ​​together. Therefore, after the regional flexurality monitoring of each monitoring segment is completed, it is necessary to arrange all monitoring segments and monitor the flexurality to verify whether the monitoring of regional flexurality is correct, thereby effectively improving the overall monitoring accuracy of the drill frame. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the overall structure of the large drill frame deflection monitoring and control device and its control method of the present invention;

[0026] Figure 2 This is a schematic diagram of the deflection monitoring mechanism in the large drill frame deflection monitoring and control device and control method of the present invention;

[0027] Figure 3 This is one of the structural schematic diagrams of the upper-level component in the large drill frame deflection monitoring and control device and its control method of the present invention;

[0028] Figure 4 This is the second schematic diagram of the upper-level component in the large drill frame deflection monitoring and control device and its control method of the present invention;

[0029] Figure 5 This is the third schematic diagram of the upper-level component in the large drill frame deflection monitoring and control device and control method of the present invention;

[0030] Figure 6 This is a schematic diagram of the drive ring and monitoring components in a large drill frame deflection monitoring and control device and its control method according to 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, drive ring; 7, upper assembly; 71, support rod; 72, displacement sensor; 73, displacement friction wheel; 731, friction wheel body; 732, friction wheel end cylinder; 74, support rod containing cavity; 75, friction wheel containing cavity; 76, pressure monitoring unit; 761, pressure monitor; 762, pressure monitoring contact head; 77, spring; 78, drive wheel ring; 79, servo motor; 8, monitoring assembly; 9, optical monitoring instrument. DETAILED DESCRIPTION

[0032] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0033] In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first", "second", "third" are only for descriptive purposes and cannot be understood as indicating or implying relative importance. In the description of the present application, it should be noted that unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connection", "setting" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the communication between two elements inside. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances. The embodiments of the present application will be described below according to the overall structure of the present application.

[0034] In the embodiments of the present application, a large drilling rig deflection monitoring control device, characterized in that, comprising a drilling rig body, a plurality of deflection monitoring partitions are formed in the interior of the drilling rig body;

[0035] A monitoring device is arranged in the partition and is used for parameter extraction of regional and overall deflection of the drilling rig body; and

[0036] A monitoring algorithm is used for calculation of regional and overall deflection of the drilling rig body in combination with the monitoring device.

[0037] Since the interior of the drilling rig body is provided with the sub-zones for monitoring the multi-section deflection, the monitoring device is arranged in the sub-zone and is used for parameter extraction of the regional and overall deflection of the drilling rig body, and the monitoring algorithm in combination with the monitoring device is used for calculating the regional and overall deflection of the drilling rig body, so that the drilling rig body can be subjected to simple regional monitoring first, then the regional monitoring data of the drilling rig body is spliced, and the overall deflection of the drilling rig body is evaluated, and the process can effectively simplify the drilling rig monitoring means and optimize the drilling rig monitoring time, and improve the drilling rig monitoring efficiency.

[0038] As a further scheme of the present application: a large drilling rig deflection monitoring control device, the drilling rig body comprises a large drilling rig 1 and a drilling rig equipment 4, the interior of the large drilling rig 1 is fixedly provided with a monitoring section 3 isolated from the drilling rig body, the interior of each monitoring section 3 is provided with a monitoring device used for monitoring the section deflection, and each monitoring device is used for monitoring the overall deflection of the drilling rig body.

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

[0040] Step S1: the deflection monitoring mechanism 2 is arranged in each monitoring section 3 in the interior of the large drilling rig 1, and the position of the deflection monitoring mechanism 2 is adjusted by using the upper assembly 7, specifically, the upper assembly 7 is moved in the monitoring section 3 by rotating the friction wheel body 731, and the position of the upper assembly 7 is adjusted, then the upper assembly 7 is locked with the monitoring section 3 by using the supporting rod 71 to fix the upper assembly 7;

[0041] Step S2: after the deflection monitoring mechanism 2 is fixed, the driving ring 78 is rotated by the servo motor 79, the driving ring 78 in turn drives the driving ring 6 to rotate, the driving ring 6 in turn drives the friction monitoring assembly 8 to rotate, so as to realize the purpose that the monitoring assembly 8 drives the optical monitoring instrument 9 to rotate, so as to monitor the deflection of each drilling rig in the large drilling rig 1, specifically, the optical monitoring instrument 9 can emit infrared light to the large drilling rig 1 and receive the rebounded light, then the time consumed by the receiving-rebounding is used to judge whether the structure of the drilling rig is bent, if the receiving time changes linearly, it indicates that the drilling rig in the monitoring section 3 changes monotonously with the receiving distance, that is, the deflection is small or no deflection occurs, otherwise it proves that the monitoring section 3 is deflected;

[0042] Step S3: After the regional flexure monitoring of each monitoring segment 3 is completed, all monitoring segments 3 need to be arranged and the flexure is monitored. Specifically, after the data of each monitoring segment 3 is connected in series, it is necessary to compare whether the data is linearly changed or the data jump is too large. If the data is nonlinearly changed, it proves that the large drilling rig 1 has a flexural deformation. If the data jump is too large, it proves that the adjusting position of the flexural monitoring mechanism 2 is inaccurate, and the position that can be connected with the data of the previous flexural monitoring mechanism 2 needs to be adjusted. Then, the regional flexure monitoring is repeated for regional re-monitoring. After the monitoring is completed, the data of each segment can be spliced.

[0043] As a further scheme of the present application: a large drilling rig flexural monitoring control device, the monitoring device comprises a flexural monitoring mechanism 2, the flexural monitoring mechanism 2 comprises a monitoring chassis 5, a driving ring 6, an upper assembly 7, a monitoring assembly 8 and an optical monitoring instrument 9, the monitoring chassis 5 is sleeved outside the large drilling rig 1 and controls walking or stopping through the upper assembly 7, the driving ring 6 is arranged at the outer periphery of the upper assembly 7 and drives the rotation of the monitoring assembly 8, and the optical monitoring instrument 9 is arranged inside the monitoring assembly 8 and visually samples the flexure of the large drilling rig 1.

[0044] Since the monitoring device comprises a flexural monitoring mechanism 2, the flexural monitoring mechanism 2 comprises a monitoring chassis 5, a driving ring 6, an upper assembly 7, a monitoring assembly 8 and an optical monitoring instrument 9, the monitoring chassis 5 is sleeved outside the large drilling rig 1 and controls walking or stopping through the upper assembly 7, the driving ring 6 is arranged at the outer periphery of the upper assembly 7 and drives the rotation of the monitoring assembly 8, and the optical monitoring instrument 9 is arranged inside the monitoring assembly 8 and visually samples the flexure of the large drilling rig 1, therefore the flexural monitoring mechanism 2 can stop or move in the monitoring segment 3 at will, and personnel do not need to climb the tower for monitoring, effectively improving the convenience and safety of monitoring.

[0045] As a further scheme of the present application: a large drilling rig flexural monitoring control device, the upper assembly 7 comprises a support rod 71, a displacement sensor 72 and a displacement friction wheel 73, a support rod containing cavity 74 containing the support rod 71 is arranged in the inside of the upper assembly 7, the support rod 71 is movably connected with the support rod containing cavity 74, a friction wheel containing cavity 75 containing the displacement friction wheel 73 is arranged in the inside of the upper assembly 7, the displacement friction wheel 73 is movably connected with the friction wheel containing cavity 75, the support rod 71 and the displacement friction wheel 73 are arranged alternately with the support rod containing cavity 74 and the friction wheel containing cavity 75, and the displacement sensor 72 is arranged on the same side of the displacement friction wheel 73.

[0046] As a further scheme of the present application: a large drilling rig deflection monitoring control device, a pressure monitoring unit 76 is fixedly installed in the inside of the friction wheel containing cavity 75, the pressure monitoring unit 76 comprises a pressure monitor 761 and a pressure monitoring contact head 762, the pressure monitor 761 is fixedly connected with the upper assembly 7, the pressure monitoring contact head 762 is fixedly connected with the pressure monitor 761, and the pressure monitoring contact head 762 is movably connected with the displacement friction wheel 73.

[0047] As a further scheme of the present application: a large drilling rig deflection monitoring control device, the displacement friction wheel 73 comprises a friction wheel body 731 and a friction wheel end cylinder 732, the friction wheel body 731 is movably connected with the friction wheel containing cavity 75, and the friction wheel body 731 is rotationally connected with the friction wheel end cylinder 732.

[0048] As a further scheme of the present application: a large drilling rig deflection monitoring control device, further comprising a spring 77, one end of the spring 77 is fixedly connected with the upper assembly 7, and the other end is fixedly connected with the friction wheel end cylinder 732.

[0049] As a further scheme of the present application: a large drilling rig deflection monitoring control device, a servo motor 79 is fixedly installed in the inside of the upper assembly 7, a drive wheel rim 78 is fixedly connected to the output end of the servo motor 79, and the drive wheel rim 78 is matched with the drive ring 6.

[0050] Since the data of each monitoring section 3 needs to be compared after being connected in series to determine whether the data is linearly changed or the data jump is too large, if the data is nonlinearly changed, it proves that the large drilling rig 1 has deflection deformation, and if the data jump is too large, it proves that the adjusting position of the deflection monitoring mechanism 2 is inaccurate, the position which can be connected with the data of the previous deflection monitoring mechanism 2 needs to be adjusted, then the regional deflection of the monitoring section is repeatedly monitored for regional re-monitoring, after the monitoring is completed, the data of each section is spliced, and thus after the regional deflection of each monitoring section 3 is monitored, the monitoring accuracy of the regional deflection can be verified in reverse by arranging all the monitoring sections 3 and monitoring the deflection, so that the overall monitoring accuracy of the drilling rig is effectively improved.

[0051] The working principle of the present application is that since the inside of the drilling rig body is provided with a partition for multi-section deflection monitoring, the monitoring device is arranged in the partition and is used for parameter extraction of the regional and overall deflection of the drilling rig body, and the monitoring algorithm is combined with the monitoring device to calculate the regional and overall deflection of the drilling rig body, so that the drilling rig body can be simply regionally monitored first, then the regional monitoring data of the drilling rig body is spliced, and the overall deflection of the drilling rig body is evaluated, which can effectively simplify the drilling rig monitoring means, optimize the drilling rig monitoring time, and improve the drilling rig monitoring efficiency.

[0052] Since the monitoring device comprises the deflection monitoring mechanism 2, the deflection monitoring mechanism 2 comprises the monitoring chassis 5, the driving ring 6, the upper assembly 7, the monitoring assembly 8 and the optical monitoring instrument 9, the monitoring chassis 5 is sleeved outside the large drilling rig 1 and controls walking or stopping through the upper assembly 7, the driving ring 6 is arranged at the outer periphery of the upper assembly 7 and is driven in rotation by the monitoring assembly 8, the optical monitoring instrument 9 is arranged inside the monitoring assembly 8 and is used for visually sampling the deflection of the large drilling rig 1, therefore the deflection monitoring mechanism 2 can be stopped or moved in the monitoring section 3 at will, and personnel need not to climb the tower for monitoring, and the convenience and safety of monitoring are effectively improved.

[0053] Since the data of each monitoring section 3 needs to be compared after being connected in series to see whether the data is linearly changed or whether the data jump is too large, if the data is not linearly changed, it proves that the large drilling rig 1 has deflection deformation, if the data jump is too large, it proves that the adjusting position of the deflection monitoring mechanism 2 is not accurate, the position which can be connected with the data of the previous deflection monitoring mechanism 2 needs to be adjusted, then the monitoring of the regional deflection is repeated for regional re-monitoring, after the monitoring is completed, the data of each section is spliced, therefore after the regional deflection of each monitoring section 3 is monitored, the monitoring sections 3 need to be arranged and the deflection is monitored to verify whether the monitoring of the regional deflection is correct, thereby effectively improving the monitoring accuracy of the whole drilling rig.

[0054] The above is only the preferred specific embodiment of the present application, but the protection scope of the present application is not limited to this, any person skilled in the art can make equivalent replacement or change according to the technical scheme and the inventive concept of the present application within the technical range disclosed by the present application, which should be covered in the protection scope of the present application.

Claims

1. A large rig deflection monitoring control apparatus, characterized by , including the drilling rig body, the inside of the drilling rig body is provided with a partition for multi-section deflection monitoring; a monitoring device provided in the partition and used for parameter extraction of regional and overall deflection of the drilling rig body; and a monitoring algorithm used in combination with the monitoring device for calculation of regional and overall deflection of the drilling rig body; The drilling rig body includes a large drilling rig (1) and a drilling rig device (4), the inside of the large drilling rig (1) is fixedly provided with a monitoring section (3) for isolation of the drilling rig body, the inside of each monitoring section (3) is provided with a monitoring device for monitoring of section deflection, and each monitoring device is used in combination with the monitoring device for monitoring of overall deflection of the drilling rig body; 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 assembly (7), a monitoring assembly (8) and an optical monitoring instrument (9), the monitoring chassis (5) is sleeved on the outside of the large drilling rig (1) and is controlled to walk or stop through the upper assembly (7), the driving ring (6) is provided on the outer periphery of the upper assembly (7) and is used for driving rotation of the monitoring assembly (8), and the optical monitoring instrument (9) is provided in the inside of the monitoring assembly (8) and is used for visual sampling of deflection of the large drilling rig (1); the upper assembly (7) includes a support rod (71), a displacement sensor (72) and a displacement friction wheel (73), the inside of the upper assembly (7) is provided with a support rod accommodating cavity (74) for accommodating the support rod (71), the support rod (71) is movably connected with the support rod accommodating cavity (74), the inside of the upper assembly (7) is provided with a friction wheel accommodating cavity (75) for accommodating the displacement friction wheel (73), the displacement friction wheel (73) is movably connected with the friction wheel accommodating cavity (75), and the support rod (71) and the displacement friction wheel (73) are arranged alternately with the support rod accommodating cavity (74) and the friction wheel accommodating cavity (75), and the displacement sensor (72) is arranged on the same side of the displacement friction wheel (73).

2. A rig deflection monitoring control apparatus according to claim 1, wherein, The inside of the friction wheel accommodating cavity (75) is fixedly provided with a pressure monitoring unit (76), the pressure monitoring unit (76) includes a pressure monitor (761) and a pressure monitoring contact head (762), the pressure monitor (761) is fixedly connected with the upper assembly (7), the pressure monitoring contact head (762) is fixedly connected with the pressure monitor (761), and the pressure monitoring contact head (762) is movably connected with the displacement friction wheel (73).

3. A rig deflection monitoring control apparatus according to claim 1, wherein, The displacement friction wheel (73) includes a friction wheel body (731) and a friction wheel end cylinder (732), the friction wheel body (731) is movably connected with the friction wheel accommodating cavity (75), and the friction wheel body (731) is rotatably connected with the friction wheel end cylinder (732).

4. A rig deflection monitoring control apparatus as claimed in claim 1, wherein, Further comprising a spring (77), one end of the spring (77) is fixedly connected with the upper assembly (7), and the other end is fixedly connected with the friction wheel end cylinder (732).

5. A rig deflection monitoring control apparatus as claimed in claim 1, wherein, The internal fixing installation of the upper assembly (7) is equipped with a servo motor (79), the output end of the servo motor (79) is fixedly connected with a drive wheel (78), and the drive wheel (78) is matched with the drive ring (6).

6. The control method of the large drilling rig deflection monitoring control device, which is applied to the large drilling rig deflection monitoring control device of claim 5, characterized in that: Comprise Step S1: the deflection monitoring mechanism (2) is arranged in each monitoring section (3) in the large drilling rig (1), and the position of the deflection monitoring mechanism (2) is adjusted by the upper assembly (7), that is, the upper assembly (7) is moved in the monitoring section (3) by rotating the friction wheel body (731) and the position of the upper assembly (7) is adjusted, then the upper assembly (7) is locked with the monitoring section (3) by the supporting rod (71) to fix the upper assembly (7); Step S2: after the deflection monitoring mechanism (2) is fixed, the drive wheel (78) is driven to rotate by the servo motor (79), the drive wheel (78) in turn drives the drive ring (6) to rotate, the drive ring (6) in turn drives the friction monitoring assembly (8) to rotate, which can realize the purpose of rotating the optical monitoring instrument (9) driven by the monitoring assembly (8), so as to monitor the deflection of each drilling rig in the large drilling rig (1), that is, the optical monitoring instrument (9) can emit infrared light to the large drilling rig (1) and receive the rebounding light, then the time consumed by receiving-rebounding is used to judge whether the structure of the drilling rig is bent, if the receiving time changes linearly, it indicates that the drilling rig in the monitoring section (3) changes monotonously with the receiving distance, that is, no deflection or small deflection occurs, otherwise it proves that the monitoring section (3) is deflected; Step S3: after the regional deflection monitoring of each monitoring section (3) is completed, all monitoring sections (3) need to be arranged and the deflection is monitored, that is, after the data of each monitoring section (3) is connected in series, it is necessary to compare whether the data is linearly changed or the data jump is too large, if the data is nonlinearly changed, it proves that the large drilling rig (1) is deflected and deformed, if the data jump is too large, it proves that the adjustment position of the deflection monitoring mechanism (2) is inaccurate, the position which can be connected with the data of the previous deflection monitoring mechanism (2) is needed, then the regional deflection monitoring is repeated for regional re-monitoring, after the monitoring is completed, the data of each section is spliced.

Images