Top drive drilling device

Abstract

A top drive drilling device relates to the field of petroleum drilling and comprises a drilling platform, a derrick is mounted on the drilling platform, a traveling block is assembled on the derrick, a top drive system is further movably mounted in the vertical direction of the derrick, and an adjusting component and an elevator component are further assembled on the top drive system. Secondly, by means of the elevator assembly, when the drill rod needs to be connected, the adjusting assembly can rapidly adjust the position of the elevator assembly, the drill rod is automatically checked through the driving plate arranged in the shape of the Chinese character'ba ', the two bushings are opened in a linkage mode, and when the drill rod is completely located in the bushings, the elevator assembly can automatically adjust the position of the elevator assembly; the drill rod can be locked through the dual effects of the locking disc and the pre-tightening spring, so that the elevator assembly works more stably; and the interior of the lining is gradually expanded from bottom to top, the drill rod is prevented from integrally falling down in the receiving or pulling-out process, and finally abrasion caused in the drill rod entering and exiting process can be avoided through the pin rollers.

Description

Technical Field

[0001] This invention relates to the field of oil extraction, and in particular to a top drive drilling apparatus. Background Technology

[0002] Top drive systems, or "top drives" for short, are a major innovation in modern drilling technology. Since their introduction in the 1980s, they have significantly improved drilling efficiency, safety, and automation. A top drive is a drilling rig installed on top of the derrick, below the traveling block. It integrates rotary drive, circulating drilling fluid, and add / remove connections, directly driving the drill pipe to rotate and move it up and down along guide rails, replacing the traditional rotary table system that drives the drill string via a crisscross drill pipe.

[0003] Existing top drive mounting methods are generally divided into electric top drives and hydraulic top drives, with their power sources being AC variable frequency motors and hydraulic motors, respectively. Electric top drives offer high precision and a wide range of adjustable speed and torque, making them suitable for land drilling rigs, offshore platforms, and automated drilling systems. Hydraulic top drives, on the other hand, have lower power requirements and are suitable for small or mobile drilling rigs. A typical top drive consists of six main parts: a drilling motor (usually an AC variable frequency motor or a hydraulic motor) providing rotational power; a gearbox for speed reduction and torque amplification; a spindle and swivel for conveying drilling fluid; guide rails and guide trolleys for vertical movement along the derrick guide rails; a chuck mechanism for picking up and dropping drill pipe; and a control system. Existing chucks mounted on top drives include obsolete manually locked chucks and the now common hydraulic drives. Hydraulic chucks require a separate hydraulic system, increasing piping and layout complexity, adding to the overall weight of the top drive, and the inherent instability of hydraulic systems leads to unstable chuck operation. Furthermore, they cause drill pipe wear during tripping and retrieval. Summary of the Invention

[0004] To address the above problems, the present invention adopts the following technical solution.

[0005] A top-drive drilling rig includes a drilling platform with a derrick mounted on it. A traveling block is mounted on the derrick. A top drive system is movably mounted vertically on the derrick. The top drive system is connected to the traveling block via a hoisting rope. The top drive system also includes an adjustment assembly, a clamp assembly, and a main controller. The adjustment assembly is also connected to the clamp assembly. The clamp assembly includes two connecting arms, the top ends of which are rotatably connected to both sides of the top drive system. The other end of each connecting arm is movably connected to one side of the clamp body. The clamp body has cylindrical through-sections at both its upper and lower ends. The clamp body also has an opening communicating with the through-sections. Symmetrical bushings are vertically mounted within the through-sections, and a linkage plate is fixedly mounted on each bushing. First grooves are formed on both sides of the front end of the clamp body. A drive plate is slidably installed in a first slide groove, and the two drive plates are arranged in a figure-eight shape. A T-shaped slide groove is also opened at the bottom of the first slide groove, and the T-shaped slide groove is also connected to the through part. A slider is installed in the first slide groove, and part of the slider is located in the T-shaped slide groove. The slider is also fixedly connected to the linkage plate. A second slide groove is also provided through the inside of the hanging clamp body from the left and right. The second slide groove is also connected to the through part. A first sliding plate and a second sliding plate are slidably installed in the second slide groove. The first sliding plate and the second sliding plate are both fixedly connected to the corresponding bushings. A linkage rod is fixedly installed at the end of the first sliding plate and the second sliding plate away from the bushing. A locking plate is also movably installed in the second slide groove. The locking plate has symmetrical irregular guide grooves. Each linkage rod extends into the corresponding irregular guide groove. The irregular guide groove has an arc structure.

[0006] Preferably, the top drive system includes a guide connecting plate that cooperates with the derrick. A gearbox is fixedly installed at the front end of the guide connecting plate. Two AC motors are installed at the top of the gearbox, with the output end of each AC motor extending into the gearbox. A protective sleeve is installed at the bottom of the gearbox, and an adjustment assembly is also installed on the protective sleeve. A main shaft is rotatably installed inside the protective sleeve, and the top of the main shaft passes through the gearbox and is installed in cooperation with the gears inside the gearbox. The top of the main shaft is also rotatably connected to a faucet assembly located at the top of the gearbox and fixedly connected to a lifting ring. The lifting ring is fixed to the top of the gearbox. The main controller is also located on the gearbox and is signal-connected to the two AC motors, the adjustment assembly, and the lifting clamp assembly. A connecting assembly is also installed at the bottom of the main shaft.

[0007] Preferably, the protective sleeve is also fixedly installed with an ear seat, and the ear seat is movably fitted with an adjustment component. The adjustment component includes a flap, and the two sides of the flap are movably connected to the connecting rods through fixed posts. Each connecting rod is also movably connected to a corresponding locking seat, and each locking seat is fixedly installed on the connecting arm. The protective sleeve is also movably equipped with a drive electric cylinder, and the extension end of the drive electric cylinder is also movably connected to the bottom of the flap.

[0008] Preferably, each first slide groove is further provided with a pre-tensioning spring. One end of the pre-tensioning spring is fixedly connected to the slider, the slider is also fixedly connected to the drive plate, and the other end of the pre-tensioning spring is fixedly connected to the pressure detector. The pressure detector is fixedly located at the far end of the first slide groove and is also signal-connected to the main controller.

[0009] Preferably, each drive plate has multiple rollers arranged in an array on its inner end face, with each roller arranged in a vertical direction.

[0010] Preferably, the through portion of the hanging clamp body is provided with arc-shaped placement grooves on both sides, which are arranged opposite to each bushing, and the interior of each bushing gradually expands from bottom to top.

[0011] Preferably, a locking motor is also fixedly installed at the rear end of the hanging clamp body. The output end of the locking motor extends into the second sliding groove and is fixedly connected to the locking disc. The locking motor is also signal-connected to the main controller.

[0012] Preferably, baffles are fixed on both sides of the hanging clamp body, and the baffles are located on both ends of the second sliding groove.

[0013] Preferably, limiting grooves are also provided on the upper and lower end faces inside the second sliding groove, and the upper and lower ends of the first sliding plate and the second sliding plate are both located in the limiting grooves.

[0014] Preferably, the first sliding plate has a protrusion at the end near the second sliding plate, and the second sliding plate has a recess at the end near the protrusion, the protrusion and the recess cooperating with each other.

[0015] The beneficial effects of this invention are as follows: This invention completely replaces existing hydraulic lifting clamps, eliminating the need for a separate hydraulic system to control the clamps and reducing the overall weight of the equipment. Secondly, the lifting clamp assembly allows for adjustment of its position when drill rods need to be picked up. An eight-shaped drive plate automatically contacts the drill rod and simultaneously opens two bushings. Once the drill rod is fully within the bushings, the locking disc and pre-tension springs lock it in place, ensuring greater stability of the lifting clamp assembly. Furthermore, the bushings expand gradually from bottom to top, preventing the drill rod from falling during transport or picking up, thus avoiding injury. Finally, rollers prevent wear on the drill rod during insertion and removal. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the installation structure of a top-drive drilling rig. Figure 2 A side view of the installation structure of the top-drive drilling rig; Figure 3This is a three-dimensional structural diagram of the top drive system; Figure 4 This is a side view of the top drive system. Figure 5 This is a three-dimensional structural diagram of the hanging clamp assembly; Figure 6 This is a schematic diagram of the hanging clamp assembly from another perspective. Figure 7 This is a front view structural diagram of the hanging clamp assembly; Figure 8 for Figure 7 Schematic diagram of the cross-sectional structure along line AA; Figure 9 for Figure 8 Schematic diagram of the cross-sectional structure along line BB; Figure 10 Top view of the hanging clamp assembly; Figure 11 for Figure 10 Schematic diagram of the cross-sectional structure along the CC line; In the diagram: 1. Drilling platform; 2. Derrick; 3. Traveling block; 4. Top drive system; 5. Adjustment assembly; 6. Lifting clamp assembly; 7. Main controller; 60. Connecting arm; 61. Lifting clamp body; 62. Through section; 63. Opening; 64. Bushing; 65. Linkage plate; 66. First slide groove; 67. Drive plate; 68. T-slide groove; 69. Slider; 690. Second slide groove; 691. First sliding plate; 692. Second sliding plate; 693. Linkage rod; 694. Locking disc; 695. Irregular guide groove. 5. Guide connecting plate 40, gearbox 41, AC motor 42, protective sleeve 43, main shaft 44, faucet assembly 45, lifting ring 46, connecting assembly 47, ear seat 48, flap 50, connecting rod 51, locking seat 52, drive electric cylinder 53, preload spring 696, pressure detector 697, roller 698, placement groove 699, locking motor 670, baffle 671, limit groove 672, protrusion 673 and recess 674. Detailed Implementation

[0017] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0018] In the description of this invention, it should be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0019] Example 1: Please see Figure 1-11A top-drive drilling rig includes a drilling platform 1, which primarily supports a derrick 2. The drilling platform 1 is typically a column-mounted or other mobile platform, including but not limited to onshore and offshore drilling platforms 1. The drilling platform 1 generally also has an area for placing drill pipes, which are typically placed vertically in this area. The derrick 2 is mounted on the drilling platform 1. The derrick 2 is primarily used to equip a traveling block 3 and a top drive system 4. The top drive system 4 is raised or lowered by slings or ropes under the action of the traveling block 3. The derrick 2 is equipped with the traveling block 3, and the top drive system 4 is also movably mounted vertically on the derrick 2. The top drive system 4 is connected to the traveling block 3 via ropes. The top drive system 4 is also equipped with an adjustment assembly 5, a lifting clamp assembly 6, and a main control unit. Device 7, the main purpose of the adjusting component 5 is to adjust the position of the lifting chuck assembly 6. It generally operates during drill pipe tripping or retrieval. During drilling, the bottom of the lifting chuck assembly 6 contacts the drilling platform, and the top drive system 4 drives the drill pipe to drill. The adjusting component 5 is also connected to the lifting chuck assembly 6 and is used to adjust the position of the lifting chuck assembly 6. The lifting chuck assembly 6 is used to retrieve the drill pipe, taking it out of the placement area and placing it in the borehole, or, during drill pipe tripping, lifting the drill pipe detached from the top drive system 4. The lifting chuck assembly 6 includes two connecting arms 60, the top ends of which are rotatably connected to the two sides of the top drive system 4, and the other end of each connecting arm 60 is also connected to the lifting chuck body 6. One side of the 1 is movable, and the lifting clamp body 61 can be moved through two connecting arms 60. The movement and adjustment of the connecting arms 60 are controlled by the adjusting component 5. The upper and lower ends of the lifting clamp body 61 are also provided with cylindrical through parts 62. The lifting clamp body 61 also has an opening 63, which is connected to the through parts 62. In this way, the drill rod can enter the through part 62 through the opening 63. The drill rod enters in a horizontal direction, instead of the traditional vertical direction. This eliminates the need for alignment and avoids wear on the top of the drill rod. Compared with traditional lifting clamps without openings, this opening allows for faster assembly of the drill rod. Two symmetrical bushings 64 are vertically installed inside the through part 62. The spacing between the two bushings 64 can be adjusted at any time. It can adapt to drill pipes of different diameters. Each bushing 64 is also fixedly equipped with a linkage plate 65. When the drive plate 67 is pressed and moved by force, the linkage plate 65 can drive the bushing 64 to move into the placement slots 699 on both sides. The front end of the hanging clamp body 61 is also provided with first sliding grooves 66 on both sides. The two first sliding grooves 66 are located on both sides of the opening 63. The drive plate 67 is slidably installed in each first sliding groove 66, so that the two drive plates 67 are arranged in a figure-eight shape. The bottom of the first sliding groove 66 is also provided with a T-shaped sliding groove 68. The T-shaped sliding groove 68 is also connected to the through part 62. The slider 69 is installed in the first sliding groove 66. The bottom part of the slider 69 is located in the T-shaped sliding groove 68, and the slider 69 is also fixedly connected to the linkage plate 65.The hanging clamp body 61 also has a second sliding groove 690 extending through it from left to right. The second sliding groove 690 is also connected to the through part 62. A first sliding plate 691 and a second sliding plate 692 are slidably fitted in the second sliding groove 690. The first sliding plate 691 and the second sliding plate 692 are both fixedly connected to the corresponding bushings 64. A linkage rod 693 is fixedly installed at the end of the first sliding plate 691 and the second sliding plate 692 away from the bushing 64. A locking plate 694 is also movably installed in the second sliding groove 690. The locking plate 694 has symmetrical irregularly shaped guide grooves 695. Each linkage rod 693 extends into the corresponding irregularly shaped guide groove 695. During the rotation of the locking plate 694, the irregularly shaped guide grooves 695 cause the linkage rods 693 to drive the first sliding plate 691 and the second sliding plate 692 to slide.

[0020] Its working principle is as follows: In the initial state, the bottom of the two drive plates 67, i.e., the V-shaped contraction portion, is in contact with each other. At this time, the two bushings 64 are also in contact, forming a closed locking part. When it is necessary to pick up the drill rod, firstly, the main controller 7 controls the adjusting component 5 to move the lifting clamp component 6 to the designated position. At this time, the V-shaped expansion portion of the two drive plates 67 is aligned with the drill rod to be clamped. Then, the lifting clamp body 61 is pushed forward as a whole. As the drill rod contacts the inner side of the expansion portion of the two drive plates 67, it will squeeze the drive plates 67 and drive the slider 69 to move to both ends along the first slide groove 66. During this process, the pre-tension spring 696 will be in a compressed state. As the slider 69 moves, it will drive the linkage plate 65 to move. At this time, the two bushings 64 will also gradually open. During the gradual opening process, the first sliding plate 691 and the second sliding plate 692 will slide along the limiting groove 672 in the second slide groove 690. During this process, the linkage rod 693 will drive the locking plate 694 to rotate. This driven rotation is equivalent to passive rotation. This process continues until the drill rod is disengaged from the bottom of the two drive plates 67. The preload spring 696 will experience a sudden change. At this time, the pressure detector 697 will detect that the pressure value no longer increases but decreases instead. The main controller 7 detects the signal and issues an order to keep the locking motor 670 stationary for a period of time. During this time, the locking motor 670 will lock the locking disc 694, which is equivalent to locking. When the drill rod is completely inside the two bushings 64, the main controller 7 starts the locking motor 670, causing the locking disc 694 to move in the opposite direction. At this time, the locking disc 694 rotates actively. During the active rotation, under the action of the irregular guide groove 695, the linkage rod 693 drives the first sliding plate 691 and the second sliding plate 692 to move closer to each other. The process of moving closer will lock the drill rod. At the same time, the drive plate 67 also starts to move in the opposite direction until the two drive plates 67 contact each other. At this time, the drive plate 67 is equivalent to a secondary protection function. Under the dual action of the preload spring 696 and the locking disc 694, the locking efficiency can be guaranteed, the drill rod will not shake inside, it can adapt to the operation of drill rods of different diameters, and avoid the wear of the drill rod.

[0021] See Figures 8-9 The irregularly shaped guide groove 695 on the locking disc 694 has an arc-shaped structure. The two arc-shaped guide grooves 695 respectively contact the ends of the two corresponding linkage rods 693, which is equivalent to the outer surface of each linkage rod 693 contacting the inner wall of the irregularly shaped guide groove 695. The arc-shaped guide groove 695 has a limiting and guiding function, as follows: As the linkage plate 65 moves to both sides under the action of the drill pipe, the two bushings 64 also gradually open. At this time, the first sliding plate 691 and the second sliding plate 692 corresponding to each bushing 64 will slide along the limiting groove 672 in the second sliding groove 690. During this process, if... Figure 9As shown, each linkage rod 693 will break free from the arc-shaped structure of the irregular guide groove 695, thereby causing the locking disc 694 to rotate passively (clockwise). During the expansion and opening of the bushing 64, the two linkage rods 693 start to move away from each other from the closest position. During the process of moving away, the two linkage rods 693 always maintain horizontal lateral movement. During the horizontal passive sliding process, the locking disc 694 rotates.

[0022] During the locking process, the locking disc 694 will rotate actively (counterclockwise) under the action of the locking motor 670, causing the two linkage rods 693 located at the farthest horizontal end of the irregular guide groove 695 to move closer to each other during the rotation. At this time, the two corresponding bushings 64 will also move closer, thereby locking the drill rod.

[0023] See Figures 3-4 The top drive system 4 includes a guide connecting plate 40, which cooperates with the derrick 2. A gearbox 41 is fixedly installed at the front end of the guide connecting plate 40. Two AC motors 42 are installed on the top of the gearbox 41, and the output end of each AC motor 42 extends into the gearbox 41. The gearbox 41 contains a reduction gear set, which can synchronously transmit the output of the two AC motors 42 to the reduction gear set. The reduction gear set also meshes with the main shaft 44, which is a hollow shaft. Thus, the reduction gear set drives the main shaft 44 to rotate. A protective sleeve 43 is installed at the bottom of the gearbox 41, and an adjustment component 5 is also installed on the protective sleeve 43. The main shaft 44 is rotatably installed inside the protective sleeve 43. The protective sleeve 43 protects the main shaft 44, thus preventing the main shaft 44 from being affected by the external environment. The top of the spindle 44 passes through the gearbox 41 and is installed in conjunction with the gears inside the gearbox 41. The top of the spindle 44 is also rotatably connected to the swivel assembly 45, which can deliver drilling fluid to the spindle 44. The swivel assembly 45 is located on the upper part of the gearbox 41 and is fixedly connected to the lifting ring 46. The swivel assembly 45 is used to supply circulating fluid to the spindle 44 and can rotate with the spindle 44. The lifting ring 46 is fixed to the top of the gearbox 41. The main controller 7 is also located on the gearbox 41. The lifting ring 46 is connected to the rope and the top drive is lifted through the lifting ring 46. The main controller 7 is connected to two AC motors 42, the adjustment assembly 5 and the lifting clamp assembly 6 respectively. The bottom of the spindle 44 is also equipped with a connecting assembly 47, which is used to connect the spindle 44 to the drill pipe and transmit the rotational torque to the drill pipe.

[0024] The protective sleeve 43 is also fixedly installed with an ear seat 48. An adjustment component 5 is movably mounted on the ear seat 48. The adjustment component 5 includes a flip plate 50, which is also movably connected to the ear seat 48. In this way, the flip plate 50 can rotate around the ear seat 48 under the action of the drive cylinder 53. During the rotation of the flip plate 50, the connecting rod 51 will drive the connecting arm 60 to move, thus realizing the overall position adjustment of the hanging clamp assembly 6. The two sides of the flip plate 50 are also movably connected to the connecting rod 51 through fixed columns. Each connecting rod 51 is also movably connected to the corresponding locking seat 52. Each locking seat 52 is fixedly installed on the connecting arm 60. The protective sleeve 43 is also movably mounted with a drive cylinder 53. The telescopic end of the drive cylinder 53 is also movably connected to the bottom of the flip plate 50.

[0025] See Figures 5-11 Each first slide groove 66 is also equipped with a pre-tension spring 696. One end of the pre-tension spring 696 is fixedly connected to the slider 69, which is also fixedly connected to the drive plate 67. The other end of the pre-tension spring 696 is also fixedly connected to the pressure detector 697, which is fixedly located at the far end of the first slide groove 66. The pressure detector 697 is also signal-connected to the main controller 7. The pre-tension spring 696 and the locking plate 694 cooperate with each other. The main function of the pressure detector 697 is to provide feedback signals. When the drill rod is disengaged from the two drive plates 67, the pre-tension spring 696 will suddenly change. At this time, the pressure detector 697 will detect that the pressure value no longer increases, but decreases instead. At this time, the main controller 7 detects the signal fed back by the pressure detector 697, and then the main controller 7 issues an order to keep the locking motor 670 stationary for a period of time, generally 5-10 minutes, until the drill rod is completely located in the bushing 64.

[0026] See Figure 6 Each drive plate 67 has multiple rollers 698 arranged in an array on its inner end face. Each roller 698 is arranged in a vertical direction, so that the rollers 698 can rotate during the process of the drill rod pressing the drive plate 67, which can reduce the wear on the drill rod.

[0027] See Figure 6 or Figure 8The penetrating portion 62 of the hanging clamp body 61 is also provided with arc-shaped placement grooves 699 on both sides. The arc-shaped placement grooves 699 can be used to place bushings 64. When both bushings 64 are located in the placement grooves 699, the two linkage rods 693 are respectively located at the outermost ends of the two corresponding irregular guide grooves 695. Further movement will cause them to separate. This position is also the maximum position where the two bushings 64 can be separated. It is set opposite to each bushing 64. The interior of each bushing 64 gradually expands from bottom to top. Generally, the diameter of the drill rod at the head is larger than the diameter of the drill rod. The gradual expansion from bottom to top can prevent the drill rod from falling as a whole during the transfer or pick-up of the drill rod when the bushing 64 cannot be locked, thus preventing personnel injury.

[0028] A locking motor 670 is also fixedly installed at the rear end of the hanging clamp body 61. The output end of the locking motor 670 extends into the second sliding groove 690 and is fixedly connected to the locking disc 694. The locking motor 670 is also signal-connected to the main controller 7. During the drilling process, when the drill rod is completely inside the two bushings 64, the main controller 7 starts the locking motor 670, causing the locking disc 694 to move in the opposite direction. At this time, the locking disc 694 rotates actively. During the active rotation, under the action of the irregular guide groove 695, the linkage rod 693 drives the first sliding plate 691 and the second sliding plate 692 to move closer to each other. The process of moving closer will lock the drill rod. At the same time, the drive plate 67 also starts to move in the opposite direction until the two drive plates 67 contact each other.

[0029] See Figure 4 The two sides of the hanging clamp body 61 are respectively fixed with baffles 671, and the baffles 671 are located at both ends of the second slide groove 690. The baffles 671 are used to cover the two ends of the second slide groove 690, so that the second slide groove 690 is kept clean. When maintenance is required, the baffles 671 can be removed to inspect the components in the second slide groove 690.

[0030] See Figure 8 The second slide groove 690 has limiting grooves 672 on its upper and lower end faces, and the upper and lower ends of the first sliding plate 691 and the second sliding plate 692 are located in the limiting groove 682. The purpose of setting the limiting groove 672 is to ensure that the first sliding plate 691 and the second sliding plate 692 will not shake during the movement. Shaking will cause the linkage rod 693 to disengage from the irregular guide groove 695, which will cause the equipment to lose its locking function.

[0031] See Figure 6The first sliding plate 691 has a protrusion 673 at the end near the second sliding plate 692, and the second sliding plate 692 has a recess 674 at the end near the protrusion 673. The protrusion 673 and the recess 674 cooperate with each other. When the two bushings 64 are in contact, the protrusion 673 will be completely against the recess 674. At this time, both linkage rods 693 are located at the inner ends of the two irregular guide grooves 695. Figure 9 The diagram shows a partial position of the linkage rod 693 in the middle of the irregular guide groove 695. In the above process, the protrusion 673 and the recess 674 designed to cooperate with each other can ensure the tight fit of the two bushings 64 and also ensure the adjustment range to a certain extent. This increases the range in which the two linkage rods 693 can move to both sides, so that the lifting clamp assembly 6 can adapt to drill pipes with a wider range of diameters, making it highly adaptable.

[0032] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments that can be applied to other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present invention without departing from the scope of the present invention shall still fall within the protection scope of the present invention.

Claims

1. A top-drive drilling apparatus, comprising a drilling platform (1), a derrick (2) mounted on the drilling platform (1), a traveling block (3) mounted on the derrick (2), and a top drive system (4) movably mounted vertically on the derrick (2), the top drive system (4) being connected to the traveling block (3) via a suspension rope, characterized in that: The top drive system (4) is also equipped with an adjustment component (5), a hanging clamp component (6), and a main controller (7). The adjustment component (5) is also connected to the hanging clamp component (6). The hanging clamp component (6) includes two connecting arms (60). The top ends of the two connecting arms (60) are rotatably connected to the two sides of the top drive system (4), and the other end of each connecting arm (60) is movably connected to one side of the hanging clamp body (61). The hanging clamp body (61) has cylindrical through-parts (62) at both the upper and lower ends. 61) It also has an opening (63) that communicates with the through part (62). The through part (62) is fitted with two symmetrical bushings (64). Each bushing (64) is also fixedly provided with a linkage plate (65). The front sides of the hanging card body (61) are also provided with first sliding grooves (66). Each first sliding groove (66) is slidably installed with a drive plate (67). The two drive plates (67) are arranged in a figure-eight shape. The bottom of the first sliding groove (66) is also provided with a T-shaped sliding groove (68). The groove (68) is also connected to the through part (62). The first sliding groove (66) is fitted with a slider (69). The bottom part of the slider (69) is located in the T-shaped sliding groove (68), and the slider (69) is also fixedly connected to the linkage plate (65). The hanging clamp body (61) is also provided with a second sliding groove (690) running through it from left to right. The second sliding groove (690) is also connected to the through part (62), and the second sliding groove (690) is also slidably fitted with a first sliding plate (691) and a second sliding plate (692). A sliding plate (691) and a second sliding plate (692) are both fixedly connected to the corresponding bushing (64), and a linkage rod (693) is fixedly provided at the end of the first sliding plate (691) and the second sliding plate (692) away from the bushing (64). A locking plate (694) is also movably installed in the second sliding groove (690). A symmetrical irregular guide groove (695) is opened on the locking plate (694), and each linkage rod (693) extends into the corresponding irregular guide groove (695), and the irregular guide groove (695) is an arc-shaped structure.

2. The top-drive drilling apparatus according to claim 1, characterized in that: The top drive system (4) includes a guide connecting plate (40), which cooperates with the derrick (2). A gearbox (41) is fixedly installed at the front end of the guide connecting plate (40). Two AC motors (42) are installed on the top of the gearbox (41), and the output end of each AC motor (42) extends into the gearbox (41). A protective sleeve (43) is installed at the bottom of the gearbox (41), and an adjustment component (5) is also installed on the protective sleeve (43). A main shaft (44) is rotatably installed inside the protective sleeve (43), and the top of the main shaft (44) passes through... The main shaft (44) passes through the gearbox (41) and is installed in conjunction with the gear inside the gearbox (41). The top of the main shaft (44) is also rotatably connected to the faucet assembly (45). The faucet assembly (45) is located on the upper part of the gearbox (41) and is fixedly connected to the lifting ring (46). The lifting ring (46) is fixed on the top of the gearbox (41). The main controller (7) is also located on the gearbox (41) and is connected to two AC motors (42), the adjustment assembly (5) and the hanging clamp assembly (6) respectively. The bottom of the main shaft (44) is also equipped with a connecting assembly (47).

3. The top-drive drilling apparatus according to claim 2, characterized in that: The protective sleeve (43) is also fixedly installed with an ear seat (48), and the ear seat (48) is movably fitted with an adjustment component (5). The adjustment component (5) includes a flap (50), and the flap (50) is also movably connected to the ear seat (48). The two sides of the flap (50) are also movably connected to the connecting rod (51) through a fixed post. Each connecting rod (51) is also movably connected to the corresponding locking seat (52). Each locking seat (52) is fixedly installed on the connecting arm (60). The protective sleeve (43) is also movably equipped with a drive cylinder (53), and the telescopic end of the drive cylinder (53) is also movably connected to the bottom of the flap (50).

4. The top drive drilling apparatus according to claim 1, characterized in that: Each first slide groove (66) is also provided with a preload spring (696), one end of which is fixedly connected to the slider (69), the slider (69) is also fixedly connected to the drive plate (67), and the other end of which is fixedly connected to the pressure detector (697). The pressure detector (697) is fixedly installed at the far end of the first slide groove (66), and the pressure detector (697) is also signal-connected to the main controller (7).

5. The top drive drilling apparatus according to claim 1 or 4, characterized in that: Each drive plate (67) also has multiple rollers (698) arranged in an array on its inner end face, with each roller (698) arranged in a vertical direction.

6. The top drive drilling apparatus according to claim 1, characterized in that: The penetrating part (62) of the hanging bracket body (61) is provided with arc-shaped placement grooves (699) on both sides, and is arranged opposite to each bushing (64), with the interior of each bushing (64) gradually expanding from bottom to top.

7. The top drive drilling apparatus according to claim 1, characterized in that: A locking motor (670) is also fixedly installed at the rear end of the hanging clamp body (61). The output end of the locking motor (670) extends into the second slide groove (690) and is fixedly connected to the locking plate (694). The locking motor (670) is also signal connected to the main controller (7).

8. The top drive drilling apparatus according to claim 1 or 7, characterized in that: The two sides of the hanging clamp body (61) are respectively fixed with baffles (671), and the baffles (671) are located on both ends of the second slide groove (690).

9. The top-drive drilling apparatus according to claim 1, characterized in that: The second slide groove (690) has a limiting groove (672) on its upper and lower end faces, and the upper and lower ends of the first sliding plate (691) and the second sliding plate (692) are both located in the limiting groove (682).

10. The top drive drilling apparatus according to claim 1 or 9, characterized in that: The first sliding plate (691) has a protrusion (673) at the end near the second sliding plate (692), and the second sliding plate (692) has a recess (674) at the end near the protrusion (673).

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