A well drilling ball valve restart device

Abstract

The application relates to the technical field of drilling ball valves, and discloses a drilling ball valve restart device, which comprises a ball valve shell, the upper end of the ball valve shell is provided with a mounting bin, a driving assembly is arranged in the mounting bin, a first auxiliary restart assembly is arranged on one side of the driving assembly, and a second auxiliary restart assembly is arranged on the other side of the driving assembly. The drilling ball valve restart device has the advantages that the first auxiliary restart assembly is driven by a driving motor to drive a belt to be taut around a belt pulley, so that the friction force is increased, the valve rod is driven to rotate, the restart reliability is enhanced, the problem of ball jamming is solved by using high friction force, the manual risk is reduced, remote or automatic operation is supported, manual intervention in a high-risk environment is reduced, the second auxiliary restart assembly provides redundant restart capacity, and the reliability is ensured as a secondary backup when the motor driving fails; the structure is simple, the response is fast, the pneumatic system acts quickly, and the device is suitable for emergency working conditions.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of drilling ball valves, in particular to a drilling ball valve restart device. BACKGROUND

[0002] Drilling ball valves are key fluid control equipment in the field of oil and gas drilling, mainly used for cutting off, connecting or adjusting the flow of drilling fluid, oil and gas and other media, and bear core functions such as safety control, process switching and pressure management in drilling process.

[0003] In oil and gas drilling operations, as a key component for controlling fluid passage, drilling ball valves need to rely on external energy supply, and there is a failure in downhole operation, so a drilling ball valve restart device needs to be developed to facilitate the restart operation of the drilling ball valve.

[0004] The prior art with publication number CN112901096A provides a drilling ball valve restart device, which includes a hook type spring clamp and a shell, the shell is provided with a U-shaped opening at one end, the hook type spring clamp is hinged in the U-shaped opening through a pin shaft, the jaws of the hook type spring clamp can hold and lift the ball of the drilling ball valve, the outer diameter of the shell is smaller than the inner diameter of the drill string and larger than the diameter of the ball, the drilling ball valve restart device makes the hook type spring clamp fall and hold the ball of the drilling ball valve through gravity, opens a gap channel for the circulation passage of the drilling ball valve, and enables the drilling ball valve to reestablish liquid circulation.

[0005] The above-mentioned prior art makes the hook type spring clamp fall and hold the ball of the drilling ball valve through gravity, opens a gap channel for the circulation passage of the drilling ball valve, and enables the drilling ball valve to reestablish liquid circulation, but does not have active driving ability, cannot provide enough opening torque in high pressure difference or serious jamming conditions, lacks precise control, only relies on gravity, and it is difficult to ensure the stability and adjustability of the valve opening, the applicable range is limited, the surface finish and structural integrity of the ball are required to be high, and the device may fail in the case of wear or deformation, there is no redundant design, the single mechanical structure has insufficient reliability in complex working conditions, and remote operation cannot be realized, manual intervention in high-risk environment is still required.

[0006] It can be seen that a drilling ball valve restart device is needed to solve the problems of lack of active driving force and precise control, lack of redundant design and remote operation ability, and insufficient reliability in complex working conditions mentioned in the background art. SUMMARY

[0007] The purpose of the present application is to provide a drilling ball valve restart device to solve the problems mentioned in the background art.

[0008] In order to solve the above technical problems, the present application provides the following technical scheme: a kind of well drilling ball valve restart device, including ball valve shell, the upper end of the ball valve shell is equipped with installation warehouse, and the inside of installation warehouse is provided with drive assembly, the side of the drive assembly is equipped with first auxiliary restart component, and the other side of drive assembly is provided with second auxiliary restart component;

[0009] The drive assembly includes a first motor, the output end of the first motor is connected with a first bevel gear, and the first bevel gear is provided with a second bevel gear on one side, the lower end of the second bevel gear is connected with a first gear, the first gear is installed with a second gear on one side, the second gear is installed with a valve rod at the middle position, and the outer side of the valve rod is sleeved with a sealing ring, and the lower end of the valve rod is provided with a valve body.

[0010] The first auxiliary restart component includes a placement warehouse, and the upper end of the placement warehouse is provided with a second motor, the output end of the second motor is connected with a turntable, the two sides of the turntable are connected with connecting rods, one end of the connecting rod is connected with a sliding rod, the placement warehouse is provided with a first sliding groove at the corresponding position of the sliding rod, the lower end of the sliding rod is connected with a taut belt pulley, the installation warehouse is installed with a drive motor, the output end of the drive motor is connected with a fixed belt pulley, and the outer side of the fixed belt pulley is sleeved with a belt.

[0011] The second auxiliary restart component includes a fixed warehouse, and the side of the fixed warehouse is provided with a third motor, the output end of the third motor is connected with a lead screw, and the outer side of the lead screw is sleeved with a moving block, the upper end of the moving block is installed with a sliding block, the upper end of the sliding block is installed with a placement plate, and the upper end of the placement plate is provided with a pneumatic telescopic rod, the output end of the pneumatic telescopic rod is connected with a rack, and the side of the rack is installed with a third gear.

[0012] Preferably, the top end of the valve rod is connected with a manual auxiliary restart component, the manual auxiliary restart component includes a mounting frame, and the middle position of the mounting frame is provided with an adjusting plate, the middle position of the adjusting plate is installed with a rotating rod, and the lower end of the rotating rod is provided with a cam, the outer side of the adjusting plate is installed with a sliding ring, and the lower end of the adjusting plate is provided with a second spring which is symmetrical, the mounting frame is provided with a second sliding groove at the corresponding position of the sliding ring, and the top end of the valve rod is installed with a concave wheel.

[0013] Preferably, the first bevel gear and the second bevel gear are engaged, the first gear and the second gear are engaged, and the sealing ring is an annular structure.

[0014] Preferably, the second motor is detachably arranged at the upper end of the placing bin, the connecting rods are arranged symmetrically on both sides of the rotating disc, and the two ends of the connecting rods are rotatably connected with the rotating disc and the sliding rod respectively, the sliding rod is slidably arranged in the first sliding groove, and the fixed pulley is arranged on the outer side of the valve rod.

[0015] Preferably, the connecting rod is arranged on the side of the rack away from the third gear, one end of the connecting rod is provided with a connecting block, one side of the connecting block is provided with a first spring, and the outer side of the first spring and the connecting block is sleeved with a sliding bin, one side of the sliding bin is provided with a sliding rail connected in sliding mode.

[0016] Preferably, the fixed bin is detachably arranged on one side of the mounting bin, the lead screw is matched with the moving block, the fixed bin is provided with a sliding groove at the corresponding position of the sliding block, the mounting bin is provided with a horizontal groove at the corresponding position of the pneumatic telescopic rod, the output end of the pneumatic telescopic rod is detachably connected with the rack, the rack is engaged with the third gear, the sliding bin and the connecting rod constitute a telescopic mechanism through the first spring and the connecting block, and the third gear is sleeved on the outer side of the valve rod.

[0017] Preferably, the mounting frame is fixedly arranged at the top end of the mounting bin, the adjusting plate is slidably arranged in the mounting frame through the sliding ring and the second sliding groove, and the snap ring is sleeved on the outer side of the rotating rod and arranged in the adjusting plate.

[0018] Preferably, the rotating rod penetrates through the adjusting plate and extends to the outer side of the adjusting plate, the cam is engaged with the concave wheel, and the concave wheel is fixedly arranged at the top end of the valve rod.

[0019] Compared with the prior art, the present application has the following advantages:

[0020] Firstly, the first auxiliary restart assembly is arranged, the drive motor drives the belt to tighten the pulley to increase the friction force, drives the valve rod to rotate, enhances the restart reliability, overcomes the valve ball sticking problem by using high friction force, reduces the manual risk, supports remote or automatic operation, reduces manual intervention in high-risk environment, has compact structure and strong compatibility, can be adapted to different valve rod sizes, torque is accurately controllable, avoids overload damage to the valve, is easy to maintain and has low cost, the belt transmission system is durable and easy to replace, can be used as a redundant backup of the hydraulic / pneumatic system, improves the emergency handling capacity in harsh working conditions, and significantly improves the drilling efficiency and safety.

[0021] Second, the application provides redundancy restart capability by setting the second auxiliary restart component, ensures reliability as secondary backup when motor drive fails, has simple structure, fast response, rapid pneumatic system action, is suitable for emergency working condition, large torque output, gear transmission can efficiently amplify driving force, easily overcomes valve ball jamming, adapts to harsh environment, pneumatic components are high temperature resistant, explosion-proof and not affected by electromagnetic interference, can be remotely / automatically controlled, integrated with drilling control system, realizes unmanned operation, and improves safety and continuity of drilling operation.

[0022] Third, the application provides emergency manual operation guarantee by setting the manual auxiliary restart component, can still forcibly restart the valve when power or pneumatic system fails, has simple and reliable structure, cam-recess wheel mechanical transmission does not need complex power source, has low maintenance cost, is suitable for emergency treatment when power is interrupted or automatic system fails, and ensures safety and continuity of drilling operation. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 is a structural schematic view of the application;

[0024] Figure 2 is a sectional view of the application;

[0025] Figure 3 is a structural schematic view of the driving assembly of the application;

[0026] Figure 4 is a structural schematic view of the first auxiliary restart component of the application;

[0027] Figure 5 is a structural schematic view of the second auxiliary restart component of the application;

[0028] Figure 6 is a structural schematic view of the application Figure 2 is an enlarged view of structure at A in the application.

[0029] Wherein: 1, ball valve shell; 2, installation warehouse; 3, drive assembly; 301, first motor; 302, first bevel gear; 303, second bevel gear; 304, first gear; 305, second gear; 306, valve stem; 307, sealing ring; 308, valve body; 4, first auxiliary restart assembly; 401, placement warehouse; 402, second motor; 403, turntable; 404, connecting rod; 405, slide bar; 406, first sliding groove; 407, taut pulley; 408, belt; 409, fixed pulley; 410, drive motor; 5, second auxiliary restart assembly; 501, fixed warehouse; 502, third motor; 503, screw; 504, moving block; 505, slider; 506, placement plate; 507, pneumatic telescopic rod; 508, rack; 509, connecting rod; 510, connecting block; 511, first spring; 512, sliding warehouse; 513, slide rail; 514, third gear; 6, manual auxiliary restart assembly; 601, installation frame; 602, adjusting plate; 603, rotating rod; 604, cam; 605, sliding ring; 606, second sliding groove; 607, second spring; 608, concave wheel. DETAILED DESCRIPTION

[0030] The technical solutions in the embodiments of the present application will be described clearly and completely 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 the other embodiments obtained by those skilled in the art without creative work fall within the protection scope of the present application.

[0031] Please refer to Figures 1-4The utility model relates to a kind of drilling ball valve restart device, including ball valve shell 1, the upper end of ball valve shell 1 is equipped with installation warehouse 2, and the inside of installation warehouse 2 is provided with drive assembly 3, one side of drive assembly 3 is equipped with first auxiliary restart component 4, drive assembly 3 includes first motor 301, the output end of first motor 301 is connected with first bevel gear 302, and one side of first bevel gear 302 is provided with second bevel gear 303, the lower end of second bevel gear 303 is connected with first gear 304, one side of first gear 304 is equipped with second gear 305, valve rod 306 is installed in the middle position of second gear 305, and sealing ring 307 is sleeved on the outside of valve rod 306, the lower end of valve rod 306 is provided with valve body 308, first auxiliary restart component 4 includes placing warehouse 401, and the upper end of placing warehouse 401 is provided with second motor 402, the output end of second motor 402 is connected with turntable 403, both sides of turntable 403 are connected with connecting rod 404, one end of connecting rod 404 is connected with slide bar 405, first sliding slot 406 is opened in placing warehouse 401 at the corresponding position of slide bar 405 movement, the lower end of slide bar 405 is connected with taut pulley 407, drive motor 410 is installed in installation warehouse 2, the output end of drive motor 410 is connected with fixed pulley 409, and fixed pulley 409 is sleeved with belt 408 on the outside.

[0032] In the embodiment, the first motor 301 in the drive assembly 3 is used as a power source, the first motor 301 is connected with a power supply and a controller to ensure the independent operation of each device, a sensor is installed in the ball valve shell 1 to realize real-time monitoring and intelligent control of the working state of the drilling ball valve, significantly improve the operation reliability and safety of the device, the output torque of the first motor 301 is transmitted through the first bevel gear 302, the second bevel gear 303, the first gear 304 and the second gear 305, and finally transmitted to the valve rod 306 to drive the valve body 308 to rotate, providing a basic torque for the ball valve restart, solving the problem of slight jamming of the ball valve, and the sealing ring 307 ensures the sealing between the valve rod 306 and the installation warehouse 2 to prevent the leakage of drilling fluid, when the basic power cannot restart the ball valve, the first auxiliary restart component 4 plays a role, the second motor 402 is started to drive the turntable 403 to rotate, the slide bar 405 moves in the first sliding slot 406 through the connecting rod 404 to adjust the position of the taut pulley 407, and then change the tension of the belt 408, the drive motor 410 in the installation warehouse 2 drives the fixed pulley 409, cooperates with the tensioned belt 408, greatly increases the transmission friction, provides additional torque for the valve rod 306, effectively overcomes the jamming, improves the success rate of ball valve restart, and the installation warehouse 2 integrates the drive assembly 3 and the first auxiliary restart component 4, compact structure, reduces the space occupation, and is convenient to install in the limited space of drilling equipment.

[0033] Specifically, the first bevel gear 302 is engaged with the second bevel gear 303, the first gear 304 is engaged with the second gear 305, and the sealing ring 307 is in an annular structure.

[0034] In this embodiment, the first bevel gear 302 is engaged with the second bevel gear 303 to convert the transmission direction of the output power of the first motor 301, and at the same time, the torque and the rotating speed are adjusted through different gear ratios, so that the power can be transmitted to the subsequent transmission components in a suitable manner. This structural design effectively solves the problem that the output direction of the motor is inconsistent with the rotating direction of the valve rod 306, and optimizes the torque according to the actual demand, providing a reliable power basis for the restart of the ball valve. The first gear 304 is engaged with the second gear 305 to further transmit the power to the valve rod 306. Through reasonable design of the gear number and size of the two gears, the torque can be amplified again or the rotating speed can be adjusted, ensuring that the valve rod 306 obtains sufficient torque to drive the valve body 308 to rotate. The gear transmission has the characteristics of stable transmission ratio and high reliability, ensuring the accuracy and stability of power transmission. The sealing ring 307 is in an annular structure and is sleeved outside the valve rod 306 to tightly fill the gap between the valve rod 306 and the installation bin 2, effectively preventing drilling fluid, impurities, etc. from entering the inside of the installation bin 2, avoiding erosion and damage to the precision components such as the driving assembly 3, ensuring the cleanliness of the inside of the device and the normal operation of each component, prolonging the service life of the device, and preventing drilling fluid leakage to ensure the safety of drilling operations.

[0035] Specifically, the second motor 402 is detachably arranged at the upper end of the placement bin 401, the connecting rods 404 are two groups, the two groups of connecting rods 404 are symmetrically arranged on the two sides of the rotating disc 403, and the two ends of the connecting rods 404 are respectively rotatably connected with the rotating disc 403 and the sliding rod 405. The sliding rod 405 is slidably arranged in the first sliding groove 406. The fixed pulley 409 is two groups, one group of the fixed pulley 409 is sleeved outside the valve rod 306, and the belt 408 is matched with the taut pulley 407 and the fixed pulley 409.

[0036] In this embodiment, the second motor 402 is connected with a power supply and a controller for ensuring the independent operation of each device. The second motor 402 is detachably arranged at the upper end of the placement bin 401, which is convenient for quick replacement in case of failure. By adapting to different power motors, the driving force can be flexibly adjusted to meet the needs of light or heavy jamming scenes. The two ends of the two symmetric connecting rods 404 are rotatably connected with the rotating disc 403 and the sliding rod 405, which synchronously converts the rotating motion of the rotating disc into the relative movement of the sliding rod, ensuring the stable movement of the taut pulley 407. The sliding rod 405 slides in the first sliding groove 406, and the taut pulley 407 moves along the guide direction through precise limiting and guiding, so as to adjust the tension of the belt 408. The two groups of fixed pulleys 409 are respectively sleeved on the valve rod 306 and connected with the driving motor 410, and the belt 408 forms a closed loop transmission, so that the whole assembly drives the valve rod to rotate.

[0037] Please refer to Figure 5 The drilling ball valve restart device, and the other side of the driving assembly 3 is provided with a second auxiliary restart assembly 5, the second auxiliary restart assembly 5 includes a fixed bin 501, and one side of the fixed bin 501 is provided with a third motor 502, the output end of the third motor 502 is connected with a lead screw 503, and the outer side of the lead screw 503 is sleeved with a moving block 504, the upper end of the moving block 504 is installed with a sliding block 505, the upper end of the sliding block 505 is installed with a placing plate 506, and the upper end of the placing plate 506 is provided with a pneumatic telescopic rod 507, the output end of the pneumatic telescopic rod 507 is connected with a rack 508, and one side of the rack 508 is installed with a third gear 514.

[0038] In the embodiment, the third motor 502 drives the lead screw 503 to rotate, drives the moving block 504 to move linearly along the lead screw axis through thread cooperation, converts the rotary motion of the motor into linear displacement, ensures that the meshing gap of the rack 508 and the third gear 514 is adjustable, the sliding block 505 at the upper end of the moving block 504 slides in the sliding groove of the fixed bin 501, provides lateral guidance for the placing plate 506, prevents deviation when the pneumatic telescopic rod 507 acts, at the same time, bears the lateral load of the rack 508, ensures the stability of the force transmission path, the pneumatic telescopic rod 507 adjusts the output thrust according to the instruction of the control system, pushes the rack 508 to move linearly, and generates a rotary torque after meshing with the third gear 514, the air source thereof can come from the compressed air system of the drilling platform, and the drilling platform can still work independently when the power system fails, provides redundant power, the linear motion of the rack 508 is converted into the rotary motion of the third gear 514 through meshing, and the torque superposition effect is formed with the gear transmission of the driving assembly 3.

[0039] Specifically, the side, away from the third gear 514, of the rack 508 is provided with a connecting rod 509, one end of the connecting rod 509 is installed with a connecting block 510, one side of the connecting block 510 is provided with a first spring 511, and the outer side of the first spring 511 and the connecting block 510 is sleeved with a sliding bin 512, one side of the sliding bin 512 is installed with a slidingly connected sliding rail 513.

[0040] In the embodiment, the sliding rail 513 supports the sliding bin 512 to slide, makes the rack 508 movable in the horizontal direction, at the same time, the first spring 511 and the connecting block 510 are installed in the sliding bin 512, provides the extension function of the connecting rod 509 and the sliding bin 512, guarantees the stability of the movement of the rack 508, and the sliding rail 513 is fixedly arranged at a proper position.

[0041] Specifically, the fixed bin 501 is detachably arranged on one side of the mounting bin 2, the lead screw 503 is matched with the moving block 504, the fixed bin 501 is provided with a sliding groove corresponding to the moving position of the sliding block 505, the mounting bin 2 is provided with a horizontal groove corresponding to the moving position of the pneumatic telescopic rod 507, the output end of the pneumatic telescopic rod 507 is detachably connected with the rack 508, the rack 508 is engaged with the third gear 514, the sliding bin 512 and the connecting rod 509 constitute a telescopic mechanism through the first spring 511 and the connecting block 510, and the third gear 514 is sleeved outside the valve rod 306.

[0042] In the embodiment, the flexible and efficient ball valve restart auxiliary function is realized through the ingenious design and cooperation of the parts of the second auxiliary restart assembly 5, the fixed bin 501 is detachably arranged on one side of the mounting bin 2, which is convenient for installation, maintenance and replacement, and improves the versatility and expandability of the device, the accurate matching of the lead screw 503 and the moving block 504 efficiently converts the rotary motion of the third motor 502 into linear motion to drive the sliding block 505 to smoothly slide in the sliding groove of the fixed bin 501, accurately adjust the position of the pneumatic telescopic rod 507 and the rack 508, the horizontal groove provided in the mounting bin 2 provides guidance and space for the telescopic movement of the pneumatic telescopic rod 507, and guarantees the stability of the movement, the pneumatic telescopic rod 507 is detachably connected with the rack 508, which is convenient for replacing the matched rack or adjusting the pneumatic thrust according to different working conditions, the rack 508 is engaged with the third gear 514 to convert the pneumatic thrust into the rotary torque of the valve rod 306, the auxiliary driving assembly 3 restarts the ball valve, the telescopic mechanism composed of the sliding bin 512, the connecting rod 509, the first spring 511 and the connecting block 510 adaptively adjusts the engagement gap to ensure the stability of the transmission, and the cooperative operation of the components significantly improves the ability and reliability of the ball valve restart device to deal with complex and jammed working conditions.

[0043] Please refer to Figure 6 A ball valve restart device for drilling, the top end of the valve rod 306 is connected with a manual auxiliary restart assembly 6, the manual auxiliary restart assembly 6 includes a mounting frame 601, and the middle position of the mounting frame 601 is provided with an adjusting plate 602, the middle position of the adjusting plate 602 is installed with a rotating rod 603, and the lower end of the rotating rod 603 is provided with a cam 604, the outer side of the adjusting plate 602 is installed with a sliding ring 605, and the lower end of the adjusting plate 602 is provided with symmetrical second springs 607, the mounting frame 601 is provided with a second sliding groove 606 corresponding to the moving position of the sliding ring 605, and the top end of the valve rod 306 is installed with a concave wheel 608.

[0044] In the embodiment, the manual auxiliary restart assembly 6 realizes the emergency restart function of the ball valve through a pure mechanical structure. The mounting frame 601 is fixed to the top end of the mounting bin 2 to provide support for the overall structure. When the rotating rod 603 is rotated, the lower end cam 604 follows and is connected with the concave wheel 608 at the top end of the valve rod 306 to transmit the manual torque to the valve rod 306. The adjusting plate 602 slides in the second sliding groove 606 through the sliding ring 605, and cooperates with the second spring 607 at the lower end to make the cam 604 contact with the concave wheel 608 when pressed. When the driving assembly 3 or the auxiliary assembly fails, the operator can manually rotate the valve rod 306 through the assembly, which is suitable for power failure or automation system failure scenarios, and significantly improves the fault tolerance capability and operation safety of the device.

[0045] Specifically, the mounting frame 601 is fixedly arranged at the top end of the mounting bin 2. The adjusting plate 602 is slidably arranged in the mounting frame 601 through the sliding ring 605 and the second sliding groove 606. The rotating rod 603 is sleeved with a snap ring, and the snap ring is arranged in the adjusting plate 602.

[0046] In the embodiment, the mounting frame 601 is fixed to the top end of the mounting bin 2 to provide a stable mounting basis for the manual auxiliary restart assembly 6, ensuring that the overall structure does not shake during operation. The adjusting plate 602 moves stably in the mounting frame 601 through the sliding cooperation of the sliding ring 605 and the second sliding groove 606, and can accurately adjust the height of the rotating rod 603 and the cam 604 to accurately align with the concave wheel 608 at the top end of the valve rod 306. The snap ring sleeved on the outer side of the rotating rod 603 is arranged in the adjusting plate 602, effectively limiting the axial displacement of the rotating rod 603, preventing loosening or deviation during manual rotation, ensuring stable engagement of the cam 604 and the concave wheel 608, and further ensuring that the manual torque applied by the operator can be reliably transmitted to the valve rod 306 to realize the emergency restart of the drilling ball valve, providing a reliable backup solution for extreme situations such as automation system failure.

[0047] Specifically, the rotating rod 603 penetrates the adjusting plate 602 and extends to the outside of the adjusting plate 602. The cam 604 is connected with the concave wheel 608. The concave wheel 608 is fixedly arranged at the top end of the valve rod 306.

[0048] In the embodiment, the parts such as the rotating rod 603, the cam 604, the concave wheel 608, etc. are cooperated to build a reliable manual emergency restart mechanism. The rotating rod 603 penetrates the adjusting plate 602 and extends to the outside, which is convenient for the operator to rotate directly. The rotating rod 603 drives the lower end cam 604 to rotate synchronously. The cam 604 is engaged with the concave wheel 608 fixed at the top of the valve rod 306, and the torque of manual rotation is effectively transmitted to the valve rod 306 to drive the valve body to rotate, and the ball valve is restarted. In the extreme case of failure of the electric drive assembly 3 and the auxiliary restart assembly, or interruption of the downhole power supply, etc., the structure provides a pure mechanical emergency operation scheme. The engagement design of the cam 604 and the concave wheel 608 utilizes the stability of the mechanical structure to ensure that the torque is not easy to slip or fall off during the transmission process, and provides the last safeguard for the safety of drilling operations.

[0049] In use, in the case of normal use, the first motor 301 is started to drive the first bevel gear 302 to rotate, drive the engaged second bevel gear 303 to rotate, drive the first gear 304 to rotate, and then drive the second gear 305 to rotate, drive the valve rod 306 to rotate, make the valve body 308 of the ball valve rotate, realize the opening / closing of the ball valve, and ensure the sealing of the ball valve. When the first auxiliary restart needs to be realized, the second motor 402 drives the rotating disc 403 to rotate, the rotating disc 403 drives one end of the connecting rod 404 to move, the symmetrically arranged slide rods 405 relatively move along the first sliding groove 406, the symmetrically arranged tight belt pulleys 407 relatively move, the belt 408 is tensioned, the driving motor 410 is started to drive the fixed belt pulley 409 to rotate, the valve rod 306 is driven to rotate through the belt 408, and the ball valve is forcibly restarted. When the second auxiliary restart needs to be opened, the third motor 502 is started, the third motor 502 drives the screw rod 503 to rotate, the moving block 504 moves, the moving block 504 drives the sliding block 505 and the placement plate 506 to move, the pneumatic telescopic rod 507 drives the rack 508 to move close to the third gear 514 to engage with the third gear 514, the pneumatic telescopic rod 507 is started, the pneumatic telescopic rod 507 drives the rack 508 to move, the rack 508 drives the third gear 514 to rotate, thereby driving the valve rod 306 to rotate, and the ball valve is forcibly restarted. When manual auxiliary restart is needed, the rotating rod 603 is pressed, the rotating rod 603 drives the adjusting plate 602 and the cam 604 to move, the second sliding ring 605 slides in the second sliding groove 606, and the second spring 607 is compressed, so that the cam 604 is clamped in the concave wheel 608. The rotating rod 603 drives the cam 604 to rotate, the cam 604 drives the concave wheel 608 to rotate, thereby driving the valve rod 306 to rotate, and the opening and closing of the ball valve is manually controlled.

[0050] While embodiments of the application have been shown and described, it is to be understood that the embodiments described are merely exemplary of the principles and application of the present application. Numerous modifications, changes, omissions, substitutions, and equivalents can be made by one of ordinary skill in the art without departing from the spirit and scope of the application, which is defined by the following claims and their equivalents.

Claims

1. A drilling ball valve restart device, comprising a ball valve housing (1), characterized in that: The upper end of the ball valve housing (1) is equipped with an installation chamber (2), and the interior of the installation chamber (2) is provided with a drive assembly (3). A first auxiliary restart assembly (4) is installed on one side of the drive assembly (3), and a second auxiliary restart assembly (5) is provided on the other side of the drive assembly (3). The drive assembly (3) includes a first motor (301), the output end of the first motor (301) is connected to a first bevel gear (302), and a second bevel gear (303) is provided on one side of the first bevel gear (302). The lower end of the second bevel gear (303) is connected to a first gear (304), a second gear (305) is installed on one side of the first gear (304), a valve stem (306) is installed in the middle of the second gear (305), and a sealing ring (307) is sleeved on the outer side of the valve stem (306). A valve body (308) is provided at the lower end of the valve stem (306). The first auxiliary restart component (4) includes a placement compartment (401), and a second motor (402) is provided at the upper end of the placement compartment (401). The output end of the second motor (402) is connected to a turntable (403). The two sides of the turntable (403) are connected to connecting rods (404). One end of the connecting rod (404) is connected to a sliding rod (405). The placement compartment (401) has a first sliding groove (406) at the corresponding position of the sliding rod (405). The lower end of the sliding rod (405) is connected to a tensioning pulley (407). A drive motor (410) is installed in the installation compartment (2). The output end of the drive motor (410) is connected to a fixed pulley (409), and a belt (408) is sleeved on the outside of the fixed pulley (409). The second auxiliary restart component (5) includes a fixed compartment (501), and a third motor (502) is provided on one side of the fixed compartment (501). The output end of the third motor (502) is connected to a lead screw (503), and a moving block (504) is sleeved on the outside of the lead screw (503). A slider (505) is installed on the upper end of the moving block (504), and a placement plate (506) is installed on the upper end of the slider (505). A pneumatic telescopic rod (507) is provided on the upper end of the placement plate (506), and a rack (508) is connected to the output end of the pneumatic telescopic rod (507). A third gear (514) is installed on one side of the rack (508).

2. The drilling ball valve restart device according to claim 1, characterized in that: The top of the valve stem (306) is connected to a manual auxiliary restart assembly (6). The manual auxiliary restart assembly (6) includes a mounting frame (601), and an adjusting plate (602) is provided in the middle of the mounting frame (601). A rotating rod (603) is installed in the middle of the adjusting plate (602), and a cam (604) is provided at the lower end of the rotating rod (603). A slip ring (605) is installed on the outer side of the adjusting plate (602), and a symmetrical second spring (607) is provided at the lower end of the adjusting plate (602). A second sliding groove (606) is opened in the mounting frame (601) at the corresponding position of the slip ring (605). A concave wheel (608) is installed at the top of the valve stem (306).

3. The drilling ball valve restart device according to claim 1, characterized in that: The first bevel gear (302) meshes with the second bevel gear (303), the first gear (304) meshes with the second gear (305), and the sealing ring (307) has an annular structure.

4. The drilling ball valve restart device according to claim 1, characterized in that: The second motor (402) is detachably mounted on the upper end of the placement chamber (401). There are two sets of connecting rods (404), which are symmetrically arranged on both sides of the turntable (403). The two ends of the connecting rods (404) are rotatably connected to the turntable (403) and the slide rod (405) respectively. The slide rod (405) is slidably mounted in the first slide groove (406). There are two sets of fixed pulleys (409), one set of which is sleeved on the outside of the valve stem (306). The belt (408) is matched with the tensioning pulley (407) and the fixed pulley (409).

5. A drilling ball valve restart device according to claim 1, characterized in that: A connecting rod (509) is provided on the side of the rack (508) away from the third gear (514). A connecting block (510) is installed at one end of the connecting rod (509). A first spring (511) is provided on one side of the connecting block (510). A slide (512) is sleeved on the outside of the first spring (511) and the connecting block (510). A sliding rail (513) is installed on one side of the slide (512).

6. A drilling ball valve restart device according to claim 5, characterized in that: The fixed chamber (501) is detachably installed on one side of the installation chamber (2). The lead screw (503) is matched with the moving block (504). The fixed chamber (501) has a sliding groove at the corresponding position of the sliding block (505). The installation chamber (2) has a transverse groove at the corresponding position of the pneumatic telescopic rod (507). The output end of the pneumatic telescopic rod (507) is detachably connected to the rack (508). The rack (508) meshes with the third gear (514). The sliding chamber (512) and the connecting rod (509) form a telescopic mechanism through the first spring (511) and the connecting block (510). The third gear (514) is sleeved on the outside of the valve stem (306).

7. A drilling ball valve restart device according to claim 2, characterized in that: The mounting frame (601) is fixedly installed at the top of the mounting chamber (2). The adjusting plate (602) is slidably installed in the mounting frame (601) through the slip ring (605) and the second sliding groove (606). The rotating rod (603) is fitted with a retaining ring on the outside, and the retaining ring is installed in the adjusting plate (602).

8. A drilling ball valve restart device according to claim 2, characterized in that: The rotating rod (603) passes through the adjusting plate (602) and extends to its outer side. The cam (604) engages with the concave wheel (608), which is fixedly mounted on the top of the valve stem (306).

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