Automatic control integrated traveling block hook

Abstract

The invention discloses a tool used in the field of petroleum drilling, and particularly relates to an automatic control integrated traveling block hook, which comprises a sliding traveling block part and a hook part, the sliding traveling block part comprises an upper cross beam and shield assembly, a movable pulley block, a double-row tapered roller bearing, a pulley shaft and a side plate, the functions of up-and-down reciprocating motion and bearing can be achieved under the action of the steel wire rope; the large hook part comprises an upper spring seat, a lower spring seat, a hook rod, a spring, a barrel, an automatic positioning device and a hook body module, and the functions of vibration reduction, rotary positioning and hanging of a hanging ring and a faucet can be achieved. The sliding traveling block and the large hook are connected together through the two pin shafts, so that the overall size and the impact effect between the traveling block and the large hook are reduced; the motor drives the worm, the worm gear spline housing and the hook rod to rotate so as to achieve the purpose of controlling the orientation of the hook body. Manual operation is replaced by remote control, and the operation process is safer.

Description

Technical Field

[0001] The invention is applicable to the field of oil drilling, and in particular relates to an automatic control integrated traveling block hook. Background Art

[0002] In drilling operations, drilling tools such as drill pipes and drill bits must be placed into the well, and the power to lift and lower them is provided during drilling. The traveling block hook is a critical device in the drilling lifting system, responsible for lifting and lowering drilling tools, bearing the weight of the drill string, and handling complex conditions underground.

[0003] Traveling block hooks can be divided into two types: integrated and split. The split traveling block hook has some shortcomings. Its overall size is too large and its structure lacks compactness. When the sliding traveling block and the hook interact, the impact force between the two is strong, which leads to its poor applicability. The integrated traveling block hook connects the sliding traveling block and the hook through two bearing pins. This connection method reduces its overall size and makes its structure more compact. It can make full use of the derrick space and has stronger applicability. The traditional traveling block hook brake device mainly uses a cam plus a locking ring groove structure, and the wellhead operator turns the handle to break the cam apart, and then pushes the hook to rotate to a certain position, releases the handle, and the cam is stuck in the locking ring groove to lock the hook. The traditional mechanical structure has a lot of disadvantages, which brings great inconvenience to manual operation. Moreover, with the increase of usage time, problems such as not being locked tightly and getting stuck will occur. In order to effectively solve these problems, the automatic control integrated traveling block hook came into being.

[0004] In recent years, with the continuous development of the oil industry, automatic control technology has been widely used. This technology can remotely control the rotation and positioning of the traveling block hook and the opening and closing of the hook body, reducing manual operation. At the same time, it can adapt to complex working environments and further improve the efficiency and safety of drilling operations. Summary of the invention

[0005] The purpose of the present invention is to provide an automatic control integrated traveling block hook to solve the problems in the above background, and to combine automatic control to effectively improve the working stability and efficiency of the traveling block hook.

[0006] In order to solve the above problems, the present invention adopts a technical solution: the automatic control integrated traveling block hook includes a sliding traveling block part and a hook part, which are connected together by two load-bearing pins.

[0007] The sliding carriage part includes an upper crossbeam and shield assembly, an upper crossbeam pin, a movable pulley group, a double-row tapered roller bearing, a pulley shaft, and a side plate. The upper crossbeam and shield assembly is connected to the side plate through the upper crossbeam pin. The double-row tapered roller bearing has a high load-bearing capacity and can adapt to a variety of load conditions. There are five of them and they are evenly arranged on the pulley shaft. This arrangement reduces the friction between the pulley shaft and the inner ring of the bearing, improves efficiency, and also makes the parts on the shaft reasonably arranged, thereby improving the strength of the shaft. The movable pulley group has five pulleys and they are arranged one by one on the double-row tapered roller bearing. The fit is interference fit. The upper crossbeam and shield assembly is provided with a rope retaining mechanism to prevent the wire rope from jumping and causing damage when it moves around the pulley, and it is also more convenient to thread the rope. An oil groove and an oil hole are opened on the pulley shaft to lubricate the bearing to ensure the life of the double-row tapered roller bearing. The sliding carriage part has a streamlined shape to prevent the sliding carriage from accidentally touching other well tools when it reciprocates up and down.

[0008] The large hook part includes a cylinder cover, an upper spring seat, a hook rod, a spring, a cylinder, a lower spring seat, a positioning sleeve, an L-shaped bearing seat, a large bevel gear, a small bevel gear, an upper motor, a worm gear spline sleeve, a worm, a battery pack, a control unit, a thrust cylindrical roller bearing, a hook body sleeve, a hook rod pin, a gear crank, a lower motor, a straight crank, and a hook body. The cylinder cover is installed on the upper part of the cylinder by bolt connection to prevent external foreign matter from entering the cylinder. There are two upper spring seats in total, and the two upper spring seats and the hook rod are bolted together. The two ends of the spring are arranged on the upper and lower spring seats. When the large hook is loaded, the hook rod drives the upper spring seat to move downward. At this time, the spring is compressed to To achieve the purpose of vibration reduction and buffering, the cylinder and the side plate are connected by two bearing pins, so that the sliding carriage and the big hook become a whole, the lower spring seat is placed on the positioning sleeve, and a transition fit is adopted between the hook rod, the hook rod and the worm gear spline sleeve are matched with internal and external splines to transmit torque, the outside of the worm gear spline sleeve is a worm gear tooth structure, which is meshed with the worm to complete the transmission, the large bevel gear is connected to one end of the worm by thread, and the small bevel gear is connected to the upper motor by key to achieve the purpose of transmitting torque, the hook rod, large bevel gear, small bevel gear, upper motor, worm gear spline sleeve, worm, battery pack, and control unit constitute an automatic positioning device, and the control unit includes IMU, MCU, Motor drive, filter circuit, DC-DC step-down, and integrated on PCB. All motors are DC motors. DC-DC step-down converts the input DC high voltage into DC low voltage. IMU transmits the current angular velocity information to MCU. After being processed by MCU, the current angle signal is transmitted to the terminal device through wireless transmission. The operator inputs the specific angle according to the information received by the terminal device to control the rotation of the upper motor, and transmits the speed to the hook rod after speed reduction to make it rotate smoothly, so as to achieve the purpose of changing the opening direction of the hook body. The battery pack is placed in the cylinder cabin seat and connected to the control unit through wires to power the control unit. The control unit is powered on. The signal is transmitted by connecting the upper motor and the lower motor through a wire. The thrust cylindrical roller bearing and the hook rod are arranged at the lower part of the cylinder with a clearance fit to withstand the impact when the hook rod drops after being loaded. The hook body sleeve, gear crank, lower motor, straight crank, and hook body constitute a hook body module. The hook body sleeve and the hook rod are connected by a hook rod pin, and the hook body and the hook body sleeve are connected by a gear crank and a straight crank. The lower motor and the gear crank are connected by a key to transmit torque. When the upper motor rotates the hook opening to the desired angle, the operator controls the terminal device to start the lower motor, and the gears of the left and right gear cranks are driven by the forward and reverse rotation of the lower motor to engage and control the opening and closing of the hook body.

[0009] The movable pulley block of the sliding traveling block part of the automatic control integrated traveling block hook is connected to the overhead crane through a wire rope to make up and down reciprocating motion; before bearing the hook load, the opening direction angle of the hook body is rotated to the desired angle through the automatic positioning device, and then the lower motor is driven to rotate and control the opening and closing of the hook body to hook up or put down tools such as lifting rings; when the traveling block hook is subjected to a relatively small load, the spring is stressed, the thrust is transmitted in one direction, and the thrust cylindrical roller bearing does not bear the force. As the hook load gradually increases, the spring gradually bears the pressure and deforms, and the reaction force and balancing force generated also increase with the deformation of the spring. At this time, the thrust cylindrical roller bearing is still not under stress. Only when the hook load increases to a certain value, the spring deformation reaches the maximum value of the installation space and conditions, and the resistance force generated by the spring reaches the maximum value, the bottom of the hook rod external spline contacts with the thrust cylindrical roller bearing. At this time, the bearing is in a state of just being stressed but not yet stressed. When the hook load continues to increase, the increased hook load is borne by the thrust cylindrical roller bearing. This method of bearing the hook load is very reasonable. It not only achieves the effect of buffering and shock absorption, but also allows the hook load to be borne jointly by the spring and the thrust cylindrical roller bearing, thereby increasing the service life of each component.

[0010] As a further technical solution of the present invention, the automatic positioning device can transmit the speed of the upper motor to the hook rod after slowing down, so that the hook rod moves smoothly to ensure the opening angle of the hook body. At the same time, the engagement mode of the worm and the worm gear spline sleeve is a worm gear engagement with a large transmission ratio, which can realize the self-locking function to achieve the positioning function.

[0011] As a further technical solution of the present invention, the motor in the hook module is controlled by the terminal device to rotate forward and reverse to drive the gears of the left and right gear cranks to engage and control the opening and closing of the hook. In conjunction with the overhead crane, high-precision remote operation of the hanging ring and faucet can be achieved, with stronger force control, replacing manual operation.

[0012] As a further technical solution of the present invention, the automatic positioning device and the hook module are remotely controlled through wireless communication technology, without the need for complex cable layout, making the operation of the equipment more convenient. Drilling staff can remotely monitor and adjust the rotation angle of the large hook and the switch of the hook through a mobile terminal device with wireless communication technology.

[0013] As a further technical solution of the present invention, the pulley shaft, side plates, load-bearing pins, cylinder, hook rod, hook rod pins, hook body module and other force-bearing components are all forged with low-carbon high-quality alloy steel to ensure the strength requirements of the large hook.

[0014] Compared with the prior art, the present invention has the following beneficial effects: 1. The present invention connects the sliding traveling block and the big hook through two bearing pins, which reduces the overall size, makes the structure more compact, can make full use of the derrick space, and has stronger applicability.

[0015] 2. The present invention adopts automatic control technology, which can remotely and accurately control the rotation and positioning of the big hook and the opening and closing of the hook body in real time, replacing manual operation, making the operation process safer and improving the efficiency of drilling operations. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the main structure of the present invention; Figure 2 It is a side view structural schematic diagram of the present invention; Figure 3 It is an axonometric view of the positioning device; Figure 4 This is the axonometric view of the gear crank; Figure 5 This is the axonometric drawing of the hook module; Figure 6 is a control flow chart; Figure 7 The following is a flow chart of the working principle; In the figure: 1-upper beam and guard assembly, 2-upper beam pin, 3-movable pulley group, 4-double row tapered roller bearing, 5-pulley shaft, 6-side plate, 7-bearing pin, 8-cylinder cover, 9-upper spring seat, 10-hook rod, 1001-hook rod outer spline, 11-spring, 12-cylinder, 13-lower spring seat, 14-positioning sleeve, 15-L-type bearing seat, 16-large bevel gear, 17-small bevel gear, 18-upper motor, 19-worm gear spline sleeve, 1901-worm gear teeth, 1902-worm gear spline sleeve inner spline, 20-worm, 21-battery pack, 22-control unit, 23-thrust cylindrical roller bearing, 24-hook body sleeve, 25-hook rod pin, 26-gear crank, 27-lower motor, 28-straight crank, 29-hook body. DETAILED DESCRIPTION

[0017] The technical solution of the embodiment of the present invention will be described in detail below with reference to the accompanying drawings.

[0018] Reference Figure 1 and Figure 2 The automatic control integrated traveling block hook is characterized in that the automatic control integrated traveling block hook comprises a sliding traveling block part and a hook part, and is connected together by two load-bearing pins 7.

[0019] The sliding carriage part includes an upper crossbeam and shield assembly 1, an upper crossbeam pin shaft 2, a movable pulley set 3, a double-row tapered roller bearing 4, a pulley shaft 5, and a side plate 6. The upper crossbeam and shield assembly 1 is connected to the side plate 6 through the upper crossbeam pin shaft 2. The double-row tapered roller bearing 4 has a high load-bearing capacity and can adapt to a variety of load conditions. There are five of them and they are evenly arranged on the pulley shaft 5. This arrangement reduces the friction between the pulley shaft 5 and the inner ring of the bearing, improves efficiency, and also makes the parts on the shaft reasonably arranged, thereby improving the shaft Strength, the movable pulley block 3 has a total of five pulleys and are arranged one by one on the double-row tapered roller bearing 4, and the cooperation adopts an interference fit. The upper crossbeam and the shield assembly 1 are provided with a rope blocking mechanism to prevent the wire rope from jumping and causing damage when it moves around the pulley. At the same time, it will be more convenient to thread the rope. The pulley shaft 5 is opened with oil grooves and oil holes for lubricating the bearings to ensure the life of the double-row tapered roller bearing 4. The sliding carriage part has a streamlined shape to prevent the sliding carriage from accidentally touching other well tools when it reciprocates up and down.

[0020] Combination Figure 6The large hook part includes a cylinder cover 8, an upper spring seat 9, a hook rod 10, a spring 11, a cylinder 12, a lower spring seat 13, a positioning sleeve 14, an L-shaped bearing seat 15, a large bevel gear 16, a small bevel gear 17, an upper motor 18, a worm gear spline sleeve 19, a worm 20, a battery pack 21, a control unit 22, a thrust cylindrical roller bearing 23, a hook body sleeve 24, a hook rod pin 25, a gear crank 26, a lower motor 27, a straight crank 28, and a hook body 29. The cylinder cover 8 is installed on the upper part of the cylinder 12 by bolt connection to prevent external foreign matter from entering the cylinder 12. There are two upper spring seats 9, and the two upper spring seats 9 and the hook rod 10 are matched together by bolt connection. The two ends of the spring 11 are arranged on the upper and lower spring seats. When the large hook is loaded, the hook rod 10 drives The upper spring seat 9 moves downward, at which time the spring 11 is compressed to achieve the purpose of vibration reduction and buffering. The cylinder 12 is connected to the side plate 6 through two load-bearing pins 7, so that the sliding carriage and the large hook become a whole. The lower spring seat 13 is placed on the positioning sleeve 14, and a transition fit is adopted between the hook rod 10. The hook rod 10 and the worm gear spline sleeve 19 are matched with internal and external splines to transmit torque. The outside of the worm gear spline sleeve 19 is a worm gear tooth structure 1901, which is engaged with the worm 20 to complete the transmission. The large bevel gear 16 is threadedly connected to one end of the worm 20, and the small bevel gear 17 is keyed to the upper motor 18 to achieve the purpose of transmitting torque. The hook rod 10, the large bevel gear 16, the small bevel gear 17, the upper motor 18, the worm gear spline sleeve 19, the worm 20, the battery pack 21, and the control unit 22 constitutes an automatic positioning device, the control unit 22 includes IMU, MCU, motor drive, filter circuit, DC-DC step-down, and is integrated on PCB. The motors are all DC motors. The DC-DC step-down converts the input DC high voltage into DC low voltage. The IMU transmits the current angular velocity information to the MCU. After being processed by the MCU, the current angle signal is transmitted to the terminal device through wireless transmission. The operator inputs a specific angle according to the information received by the terminal device to control the rotation of the upper motor 18, and transmits the speed to the hook rod 10 after the speed is reduced to make it rotate smoothly, so as to achieve the purpose of changing the opening direction of the hook body. At the same time, the meshing mode of the worm 20 and the worm gear spline sleeve 19 is a worm gear meshing with a large transmission ratio, which can realize the self-locking function to realize the positioning function. The battery pack 21 is placed in the cabin of the cylinder 12 and connected to the control unit 22 through a wire to energize the control unit 22. The control unit 22 is connected to the upper motor 18 and the lower motor 27 through a wire to transmit signals. The thrust cylindrical roller bearing 23 and the hook rod 10 are arranged at the lower part of the cylinder 12 with a clearance fit to withstand the impact when the hook rod 10 is lowered after being loaded. The hook body sleeve 24, the gear crank 26, the lower motor 27, the straight crank 28, and the hook body 29 constitute a hook body module. The hook body sleeve 24 is connected to the hook rod 10 through the hook rod pin 25, the hook body 29 is connected to the hook body sleeve 24 through the gear crank 26 and the straight crank 28, and the lower motor 27 is connected to the gear crank 26 through a key to transmit torque. When the upper motor 18 rotates the hook body opening to a desired angle,The operator controls the terminal device to start the lower motor 27, and the lower motor 27 drives the gears of the left and right gear cranks 26 to mesh and control the hook body 29 to open and close.

[0021] In this embodiment, the movable pulley block 3 of the sliding traveling carriage is connected to the overhead traveling carriage by a steel wire rope to make up-and-down reciprocating motion; before bearing the hook load, the opening direction angle of the hook body 29 is rotated to the desired angle by the automatic positioning device, and then the lower motor 27 is driven to rotate and control the opening and closing of the hook body 29 to hook up or put down tools such as lifting rings; when the traveling carriage hook is subjected to a relatively small load, the spring 11 is subjected to force, the thrust is transmitted in one direction, and the thrust cylindrical roller bearing 23 is not subjected to force. As the hook load gradually increases, the spring 11 gradually bears pressure and deforms, resulting in The reaction force and balancing force generated also increase with the deformation of the spring 11. At this time, the thrust cylindrical roller bearing 23 is still not subjected to force. Only when the hook load increases to a certain value, the deformation of the spring 11 reaches the maximum value of the installation space and conditions, and the resistance force generated by the spring 11 reaches the maximum value, the bottom of the hook rod external spline 1001 contacts the thrust cylindrical roller bearing 23. At this time, the thrust cylindrical roller bearing 23 is in a state of just being subjected to force but not yet subjected to force. When the hook load continues to increase, the increased hook load is borne by the thrust cylindrical roller bearing 23.

[0022] In a specific embodiment, when the automatically controlled integrated traveling block hook is in operation, the movable pulley block 3 of the sliding traveling block part is connected to the overhead traveling block through a wire rope, and performs up and down reciprocating motion. When the drill string needs to be lifted, the winch lowers the traveling block hook through the wire rope, and the control unit 22 detects whether the current angle is the desired angle. The hook can rotate to an angle of 0°~180° on the horizontal plane. After driving the upper motor 18 to rotate the hook to the desired angle, the operator drives the lower motor 27 to rotate and control the opening and closing of the hook body 29 through the terminal mobile device. The gear crank 26 and the straight crank 28 can be opened or contracted to an angle of 34°~110°, 34° is the state when the hook body 29 is fully closed, and 110° is the state when the hook body 29 is fully opened. After connecting the top joint of the drill string, the winch lifts the traveling block hook through the wire rope. As the traveling block hook rises, the drill string is lifted out of the wellbore section by section.

[0023] The above embodiments are only a part of the present invention, not all of them. Based on these embodiments, other embodiments obtained by ordinary technicians in this field without creative work are also within the protection scope of the present invention.

Claims

1. Automatically controlled integrated traveling block hook, characterized by: The automatic control integrated traveling block hook comprises a sliding traveling block part and a hook part, which are connected together by two bearing pins (7); The sliding carriage part comprises an upper crossbeam and shield assembly (1), an upper crossbeam pin shaft (2), a movable pulley block (3), a double-row tapered roller bearing (4), a pulley shaft (5), and a side plate (6). The upper crossbeam and shield assembly (1) is connected to the side plate (6) via the upper crossbeam pin shaft (2). There are five double-row tapered roller bearings (4) and they are evenly arranged on the pulley shaft (5). The movable pulley block (3) has five pulleys and they are arranged one by one on the double-row tapered roller bearing (4). The fit is interference fit. The upper crossbeam and shield assembly (1) is provided with a rope retaining mechanism to prevent the wire rope from jumping out of the groove and causing damage when it moves around the pulley, and at the same time, it is more convenient to thread the rope. An oil groove and an oil hole are opened on the pulley shaft (5) for lubricating the bearing to ensure the life of the double-row tapered roller bearing (4). The sliding carriage part has a streamlined shape to prevent the sliding carriage from accidentally touching other well tools when it reciprocates up and down. The large hook portion comprises a cylinder upper cover (8), an upper spring seat (9), a hook rod (10), a spring (11), a cylinder (12), a lower spring seat (13), a positioning sleeve (14), an L-shaped bearing seat (15), a large bevel gear (16), a small bevel gear (17), an upper motor (18), a worm gear spline sleeve (19), a worm (20), a battery pack (21), a control unit (22), a thrust cylindrical roller bearing (23), a hook body sleeve (24), a hook rod pin (25), a gear crank (26), a lower motor (27), a straight crank (28), and a hook body (29). The cylinder upper cover (8) is bolted and installed on the upper part of the cylinder (12) to prevent external foreign matter from entering the cylinder (12). There are two seats (9), and the two upper spring seats (9) and the hook rod (10) are connected by bolts. The two ends of the spring (11) are arranged on the upper and lower spring seats. When the large hook is loaded, the hook rod (10) drives the upper spring seat (9) to move downward. At this time, the spring (11) is compressed to achieve the purpose of vibration reduction and buffering. The cylinder (12) and the side plate (6) are connected by two bearing pins (7), so that the sliding carriage and the large hook become a whole. The lower spring seat (13) is placed on the positioning shaft sleeve (14) and is transitionally matched with the hook rod (10). The hook rod (10) and the worm gear spline sleeve (19) are matched by internal and external splines to transmit torque. The outside of the worm gear spline sleeve (19) is a worm gear tooth structure (1901) and is connected to the worm (20 ) are meshed to complete the transmission, the large bevel gear (16) is threadedly connected to one end of the worm (20), the small bevel gear (17) is keyed to the upper motor (18) to achieve the purpose of transmitting torque, the hook rod (10), the large bevel gear (16), the small bevel gear (17), the upper motor (18), the worm gear spline sleeve (19), the worm (20), the battery pack (21), and the control unit (22) constitute an automatic positioning device, the control unit (22) includes an IMU, an MCU, a motor drive, a filter circuit, and a DC-DC step-down, and is integrated on a PCB, the motors are all DC motors, the DC-DC step-down converts the input DC high voltage into a DC low voltage, the IMU transmits the current angular velocity information to the MCU, and the MCU After processing, the current angle signal is transmitted to the terminal device via wireless transmission. The operator inputs a specific angle according to the information received by the terminal device to control the rotation of the upper motor (18), and transmits the speed to the hook rod (10) after the speed is reduced so that it rotates smoothly, so as to achieve the purpose of changing the opening direction of the hook body. The battery pack (21) is placed in the cabin of the cylinder (12) and connected to the control unit (22) via a wire to energize the control unit (22). The control unit (22) is connected to the upper motor (18) and the lower motor (27) via a wire to transmit signals. The thrust cylindrical roller bearing (23) and the hook rod (10) are arranged at the lower part of the cylinder (12) with a clearance fit, so as to withstand the impact of the hook rod (10) when it descends after being loaded.The hook body sleeve (24), the gear crank (26), the lower motor (27), the straight crank (28), and the hook body (29) form a hook body module. The hook body sleeve (24) is connected to the hook rod (10) through the hook rod pin (25). The hook body (29) is connected to the hook body sleeve (24) through the gear crank (26) and the straight crank (28). The lower motor (27) and the gear crank (26) are connected through a key to transmit torque. When the upper motor (18) rotates the hook body opening to a desired angle, the operator controls the terminal device to start the lower motor (27), and the lower motor (27) drives the gears of the left and right gear cranks (26) to mesh and control the hook body (29) to open and close.

2. The automatic control integrated traveling block hook according to claim 1 is characterized by: The automatic positioning device can reduce the speed of the upper motor and then transmit the speed to the hook rod (10), so that the hook rod (10) moves smoothly to ensure the opening direction angle of the hook body. At the same time, the meshing mode of the worm (20) and the worm gear spline sleeve (19) is a worm gear meshing with a large transmission ratio, which can realize a self-locking function to achieve a positioning function.

3. The automatic control integrated traveling block hook according to claim 1 is characterized by: In the hook module, the terminal device controls the lower motor (27) to rotate forward and reverse to drive the gears of the left and right gear cranks (26) to engage and control the hook (29) to open and close. In conjunction with the overhead crane, high-precision remote control of the hanging ring and the faucet can be achieved, with stronger force control, replacing manual operation.

4. The automatic control integrated traveling block hook according to claim 1 is characterized by: The automatic positioning device and the hook body module are remotely controlled through wireless communication technology, without the need for complicated cable layout, making the operation of the equipment more convenient; drilling personnel can remotely monitor and adjust the rotation angle of the large hook and the switch of the hook body through a mobile terminal device with wireless communication technology.

5. The automatic control integrated traveling block hook according to claim 1 is characterized by: The pulley shaft (5), side plate (6), bearing pin shaft (7), cylinder (12), hook rod (10), hook rod pin shaft (25), hook body module and other load-bearing parts are all forged with low-carbon high-quality alloy steel to ensure the strength requirements of the large hook.

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