Horizontal gripper device for oil drilling rigs

Abstract

This invention relates to the field of oil drilling tool transportation equipment, specifically a horizontal gripping gripper device for oil drilling rigs. It includes a traveling beam, a track, and a crossbeam. A fixed shell is movably installed between the two traveling beams. Multiple electromagnet columns are installed at both ends of the crossbeam. A tilting mechanism is installed between the multiple electromagnet columns and the crossbeam. An anti-sway auxiliary guiding mechanism is installed on the outer side of the multiple electromagnet columns. A pulley lifting mechanism is installed on the fixed shell. This horizontal gripping gripper device for oil drilling rigs significantly improves the positioning accuracy and operational stability of gripping and placing drilling tools by combining an electric cylinder-controlled pulley lifting mechanism with a tilting mechanism. It effectively reduces impact and vibration during operation, meeting the requirements of high-precision drilling conditions. This device replaces traditional hydraulic drive with an electric cylinder, completely eliminating hydraulic oil leakage problems and reducing maintenance frequency and costs.

Description

Technical Field

[0001] This invention relates to the field of oil drilling tool transport equipment technology, specifically to a horizontal gripper device for oil drilling rigs. Background Technology

[0002] The drill string handler is a key component of the drill string delivery system, requiring coordination with the drill pipe box (for storing drill pipe) and the overhead crane (for transporting drill pipe). Using a pre-programmed control sequence, this device enables the reciprocating transport of drilling tools such as drill pipe, drill collars, and casing between the drill pipe box and the catwalk, effectively improving the speed, efficiency, and stability of drilling operations while significantly enhancing safety and reliability. It is an indispensable piece of equipment in the drilling system.

[0003] Most of the drill bit gripper devices currently in practical use use electromagnets as the core actuators, and the driving method mainly relies on hydraulic cylinders, hydraulic winches or electric winches. Through this type of driving structure, the device can complete basic operations such as gripping, lifting and lowering drill bits. In conventional drilling scenarios, it can meet basic operational needs and provide a certain guarantee for the orderly conduct of drilling operations.

[0004] However, the existing drill bit gripper devices have many shortcomings in their structural design. For example, their operating accuracy is insufficient to meet the requirements of high-precision drilling, they experience significant impact during operation, and hydraulically driven devices are prone to leakage. In addition, the overall size of the device is too large, which not only increases the difficulty of installation but also affects the convenience of transportation. Especially when handling larger drill bits, their applicability and operating capacity are significantly limited, making it difficult to adapt to complex drilling conditions. Therefore, we propose a horizontal gripper device for oil drilling rigs. Summary of the Invention

[0005] One of the technical problems to be solved in this application is: how to design a horizontal gripper device for oil drilling rigs that is high-precision, low-impact, leak-proof, easy to install and transport.

[0006] To address the aforementioned technical problems, this application provides a horizontal gripper device for oil drilling rigs, comprising a traveling beam, a track, and a crossbeam. A fixed housing is movably disposed between two of the traveling beams. Multiple electromagnet columns are disposed at both ends of the crossbeam. A tilting mechanism is disposed between the multiple electromagnet columns and the crossbeam for adjustment before the tilting mechanism adsorbs the oil drilling tool. An anti-sway auxiliary guide mechanism is disposed on the outer side of the multiple electromagnet columns to prevent the oil drilling tool from swaying during movement. A pulley lifting mechanism is disposed on the fixed housing to drive the crossbeam and the multiple electromagnet columns to lift and lower, thereby removing the oil drilling tool.

[0007] In some embodiments, a second guide post is provided on the inner side of the fixed shell, a first guide post is movably provided on the inner side of the second guide post, a mounting clip is provided at the bottom end of the first guide post, the inner side of the mounting clip is provided on the outer side of the crossbeam, a mounting beam is provided on the outer side of the fixed shell, a vertical plate is provided on the outer side of the mounting beam, and a load-bearing roller is movably connected to the inside of the track on the side of the vertical plate.

[0008] In some embodiments, the pulley lifting mechanism includes two fixed clamps disposed on the outside of the fixed housing, an adjusting seat is disposed on the inner side of each of the two fixed clamps, a lifting electric cylinder is disposed on the side of each of the two adjusting seats, and a movable pulley is disposed at the end of each of the two lifting electric cylinders.

[0009] In some embodiments, a U-shaped frame is provided at the bottom of the mounting beam, a fixed pulley is movably provided on the side of the U-shaped frame, a guide pulley is movably provided on the inner side of the crossbeam, and two connecting seats are provided on the outer side of the fixed shell. A steel wire rope is provided inside one of the connecting seats, and the steel wire rope is connected to the other connecting seat in sequence through a movable pulley, a fixed pulley, and a guide pulley.

[0010] In some embodiments, the tiltable mechanism includes two connecting plates at the bottom of the crossbeam, a mounting plate at the bottom of the two connecting plates, an adjusting plate movably connected to the electromagnet column at the bottom of the mounting plate, and a fixing cylinder at each of the four corners of the mounting plate.

[0011] In some embodiments, each of the four fixed cylinders is provided with an electromagnetic control component at its top, and an electric main control device is provided at the top of the mounting plate. Wires are provided between the electric main control device and the four electromagnetic control components. An electromagnet is provided at the bottom of the fixed cylinder inside the electromagnetic control component, and an electromagnet is movably arranged inside the fixed cylinder.

[0012] In some embodiments, the bottom end of the electromagnet is provided with a movable rod, the outer side of the movable rod is fitted with a tension spring adjacent to the inside of the fixed cylinder, the bottom end of the movable rod is provided with a connecting rod penetrating the fixed cylinder, the top of the adjusting plate is provided with an adjusting column, and the inside of the adjusting column is movably provided with a movable ball connected to the connecting rod.

[0013] In some embodiments, the anti-sway auxiliary guiding mechanism includes an electric telescopic rod disposed at the bottom of the mounting beam. A lifting clamp is disposed at the bottom end of the electric telescopic rod. Two irregular rods are movably disposed inside the lifting clamp. Movable clamps are disposed on the sides of the two irregular rods. Movable rollers are rotatably disposed inside the two movable clamps.

[0014] In some embodiments, the irregular rod is provided with a guide rod that is movably connected to the lifting clamp inside. A groove is provided on the outer side of the irregular rod, and a torsion spring is sleeved on the outer side of the guide rod. The two ends of the torsion spring are respectively provided on the inner side of the lifting clamp and the groove.

[0015] In some embodiments, rotating plates are provided on the outer sides of both of the two irregular rods, a straight rod is provided between the two rotating plates, a wedge is movably provided between the sides of the two rotating plates, a threaded rod is provided on the side of the wedge and is threadedly connected to the internal thread of the lifting clamp, and a rotating disk is provided at the end of the threaded rod.

[0016] The present invention has at least the following beneficial effects:

[0017] 1. The drill bit gripper device combines an electric cylinder-controlled pulley lifting mechanism with a tilting mechanism, which significantly improves the positioning accuracy and operational stability of gripping and placing drill bits, effectively reducing impact and vibration during operation, and meeting the requirements of high-precision drilling conditions.

[0018] 2. This device replaces the traditional hydraulic drive with an electric cylinder, completely eliminating the problem of hydraulic oil leakage, reducing maintenance frequency and costs, and improving the accuracy and reliability of system response. It is suitable for working environments with higher requirements for cleanliness and reliability.

[0019] 3. The compact structure formed by the two guide columns (guide column one and guide column two) significantly reduces the overall transport height of the equipment while ensuring sufficient lifting stroke and rigidity. It can be transported as an integrated unit with the main body of the crane, saving disassembly and assembly time and logistics costs.

[0020] 4. The anti-sway auxiliary guiding mechanism, in conjunction with the multi-degree-of-freedom adjustable electromagnet column, enhances the adaptability and gripping stability of large-size and large-diameter drill strings, expands the application range of the device, and meets the diverse string handling needs under complex well site conditions. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0022] Figure 2 This is a structural schematic diagram of the fixed shell, crossbeam, and pulley lifting mechanism of the present invention;

[0023] Figure 3 This is a cross-sectional structural diagram of the fixing shell of the present invention;

[0024] Figure 4 This is a schematic diagram of the structure of the fixing shell, guide post one, guide post two, and electromagnet post of the present invention;

[0025] Figure 5 This is a schematic diagram of the electromagnet column and tiltable mechanism of the present invention;

[0026] Figure 6 This is an exploded structural diagram of the adjusting plate, mounting plate, and adjusting column of the present invention;

[0027] Figure 7 This is a cross-sectional structural diagram of the fixing cylinder of the present invention;

[0028] Figure 8 This is a schematic diagram of the structure of the electric telescopic rod and the movable roller of the present invention;

[0029] Figure 9 This is a schematic diagram of the lifting clamp, the movable clamp, and the movable roller of the present invention;

[0030] Figure 10 This is a schematic diagram of the moving roller, the irregular rod, the torsion spring, and the inclined block of the present invention.

[0031] In the diagram: 1. Crane beam; 2. Track; 3. Crossbeam; 4. Electromagnetic column; 5. Anti-sway auxiliary guide mechanism; 51. Electric telescopic rod; 52. Moving roller; 53. Lifting clamp; 54. Moving clamp; 55. Rotary disc; 56. Irregular rod; 57. Threaded rod; 58. Wedge; 59. Guide rod; 510. Torsion spring; 511. Groove; 512. Rotating plate; 513. Straight rod; 6. Tilting mechanism; 61. Connecting plate; 62. Mounting plate; 63. Adjusting plate; 64. Adjusting column; 65. Electric main control device; 66. Fixed cylinder; 67. 68. Movable ball; 69. Connecting rod; 60. Movable rod; 610. Tension spring; 611. Electromagnet one; 612. Electromagnetic control component; 613. Electromagnet two; 614. Wire; 7. Fixed shell; 8. Pulley lifting mechanism; 81. Connecting seat; 82. Steel wire rope; 83. Fixed clamp; 84. Adjusting seat; 85. Lifting electric cylinder; 86. Moving pulley; 87. U-shaped frame; 88. Fixed pulley; 89. Guide pulley; 9. Guide column one; 10. Mounting clamp; 11. Guide column two; 12. Mounting beam; 13. Vertical plate; 14. Bearing roller. Detailed Implementation

[0032] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0033] Example 1: Please refer to Figures 1-10The present invention provides a technical solution: a horizontal gripper device for oil drilling rigs, comprising a traveling beam 1, a track 2 and a crossbeam 3, a fixed shell 7 movably disposed between the two traveling beams 1, multiple electromagnet columns 4 disposed at both ends of the crossbeam 3, an adjustable mechanism 6 disposed between the multiple electromagnet columns 4 and the crossbeam 3 for adjustment before the adjustable mechanism 6 adsorbs the oil drilling tool, an anti-sway auxiliary guide mechanism 5 disposed on the outside of the multiple electromagnet columns 4 for preventing the oil drilling tool from swaying during movement, and a pulley lifting mechanism 8 disposed on the fixed shell 7 for driving the crossbeam 3 and the multiple electromagnet columns 4 to lift and lower, thereby removing the oil drilling tool;

[0034] Its core frame consists of two parallel traveling beams 1 and a track 2 mounted on them, providing the main movement path and support foundation for the device. The crossbeam 3, as a key load-bearing and moving component, spans between the two traveling beams 1 and is connected to the upper structure through a movable fixed shell 7. Multiple sets of electromagnet columns 4 are symmetrically distributed at both ends of the crossbeam 3. They serve as direct actuators and are responsible for generating suction force to grip the drill bit.

[0035] A guide post 2 11 is provided on the inner side of the fixed shell 7. A guide post 1 9 is movably provided on the inner side of the guide post 2 11. A mounting clip 10 is provided at the bottom end of the guide post 1 9. The inner side of the mounting clip 10 is provided on the outer side of the crossbeam 3. A mounting beam 12 is provided on the outer side of the fixed shell 7. A vertical plate 13 is provided on the outer side of the mounting beam 12. A load-bearing roller 14 is movably connected to the inside of the track 2 on the side of the vertical plate 13.

[0036] The pulley lifting mechanism 8 includes two fixed clamps 83 disposed on the outside of the fixed housing 7. An adjusting seat 84 is disposed on the inner side of each of the two fixed clamps 83. A lifting electric cylinder 85 is disposed on the side of each of the two adjusting seats 84. A movable pulley 86 is disposed at the end of each of the two lifting electric cylinders 85.

[0037] A U-shaped frame 87 is provided at the bottom of the mounting beam 12. A fixed pulley 88 is movably provided on the side of the U-shaped frame 87. A guide pulley 89 is movably provided on the inner side of the crossbeam 3. Two connecting seats 81 are provided on the outer side of the fixed shell 7. A steel wire rope 82 is provided inside one of the connecting seats 81. The steel wire rope 82 is connected to the other connecting seat 81 in sequence through a movable pulley 86, a fixed pulley 88, and a guide pulley 89.

[0038] The lifting power comes from the pulley lifting mechanism 8 installed on the fixed shell 7. It drives the pulley block to raise and lower the steel wire rope 82 through the electric cylinder, and finally realizes the precise lifting and lowering movement of the crossbeam 3 together with the drill bit. Specifically, it controls the lifting electric cylinder 85 to retract, drives the moving pulley 86 to move, and thus tightens the steel wire rope 82 transmission system. Under the dual guidance and support of the guide column 2 11 and the guide column 1 9, the crossbeam 3 drives the electromagnet column 4 to descend smoothly and vertically, and accurately moves to both sides of the drill bit to be transferred.

[0039] Example 2: Please refer to Figures 4-7 The present invention provides a technical solution: the tiltable mechanism 6 includes two connecting plates 61 set at the bottom of the crossbeam 3, the bottom of the two connecting plates 61 is provided with an installation plate 62, the bottom of the installation plate 62 is movably provided with an adjustment plate 63 connected to the electromagnet column 4, and the four corners of the installation plate 62 are each provided with a fixing cylinder 66.

[0040] A sturdy mounting plate 62 is fixed below the connecting plate 61, and an adjusting plate 63 is movably connected below the mounting plate 62. The electromagnet column 4 is installed on this adjusting plate 63. The core of the adjustment function is four identical actuation units distributed at the four corners of the mounting plate 62. Each unit contains a fixed cylinder 66 that is vertically fixed on the mounting plate 62. The top of the fixed cylinder 66 is equipped with an electromagnetic control component 612 that is centrally controlled by the electric main control device 65.

[0041] Electromagnetic control components 612 are provided at the top of each of the four fixed cylinders 66, and an electric main control device 65 is provided at the top of the mounting plate 62. Wires 614 are provided between the electric main control device 65 and the four electromagnetic control components 612. Electromagnetic control components 612 have electromagnets 613 at the bottom of the inside of the fixed cylinders 66, and electromagnets 611 are movably installed inside the fixed cylinders 66.

[0042] The bottom end of the electromagnet 611 is provided with a movable rod 69. A tension spring 610 adjacent to the inside of the fixed cylinder 66 is sleeved on the outside of the movable rod 69. A connecting rod 68 penetrating the fixed cylinder 66 is provided at the bottom end of the movable rod 69. An adjusting column 64 is provided at the top of the adjusting plate 63. A movable ball 67 connected to the connecting rod 68 is movably arranged inside the adjusting column 64.

[0043] By independently adjusting the magnetic force generated by the electromagnets at the four corners, the extension of the four connecting rods 68 can be precisely controlled, thereby pushing the adjustment plate 63 to produce the required tilt angle and realizing the universal adjustment of the electromagnet column 4.

[0044] Example 3: Please refer to Figures 8-10 The present invention provides a technical solution: the anti-sway auxiliary guide mechanism 5 includes an electric telescopic rod 51 set at the bottom of the mounting beam 12. The bottom end of the electric telescopic rod 51 is provided with a lifting clamp 53. Two irregular rods 56 are movably arranged inside the lifting clamp 53. The sides of the two irregular rods 56 are provided with movable clamps 54. The interior of the two movable clamps 54 is rotatably provided with movable rollers 52. Their telescopic movement provides the initial lifting power for the entire anti-sway mechanism. The piston rod end of the electric telescopic rod 51 is connected to a lifting clamp 53. The pair of irregular rods 56 are hinged to the lifting clamp 53 through guide rods 59 and can rotate around the hinge point within a certain angle range.

[0045] The irregular rod 56 has a guide rod 59 inside that is movably connected to the lifting clamp 53. The outer side of the irregular rod 56 has a groove 511. A torsion spring 510 is sleeved on the outer side of the guide rod 59. The two ends of the torsion spring 510 are respectively located inside the lifting clamp 53 and the groove 511. The torsion spring 510 is sleeved on the guide rod 59, and its two ends act on the groove 511 of the lifting clamp 53 and the irregular rod 56, respectively, to provide an inward restoring torque for the irregular rod 56, so that it has an automatic clamping tendency. A movable clamp 54 is installed on the outer side of each irregular rod 56, and a freely rotatable movable roller 52 is embedded inside. These rollers are in direct contact with the surface of the drill bit.

[0046] Rotating plates 512 are provided on the outer sides of the two irregular rods 56. A straight rod 513 is provided between the two rotating plates 512. A wedge block 58 is movably provided between the sides of the two rotating plates 512. A threaded rod 57 connected to the internal thread of the lifting clamp 53 is provided on the side of the wedge block 58. A rotating disk 55 is provided at the end of the threaded rod 57. The wedge block 58 is screwed into the threaded rod 57. By rotating the rotating disk 55, the threaded rod 57 is driven to move forward and backward, thereby precisely adjusting the depth of the wedge block 58 inserted between the two rotating plates 512.

[0047] Working principle: When using this device, first move the fixed shell 7 and the electromagnet column 4 so that the outer bearing roller 14 slides inside the crane beam 1 and the track 2. After sliding to the working position, lock the fixed shell 7 and the electromagnet column 4. At this time, the electromagnet column 4 and the crossbeam 3 are in a high position. It is necessary to start the lifting electric cylinder 85. The lifting electric cylinder 85 begins to retract, which will drive the end moving pulley 86 to retract. At this time, the steel wire rope 82 on the outside of the moving pulley 86 will reduce its expansion, so that the crossbeam 3 is in the guide column Under the action of the second 11 and the guide column 9, the electromagnet column 4 is moved to the outside of the drill bit that needs to be transferred. At the same time as it descends, the electric telescopic rod 51 will drive the lifting clamp 53 to descend. The moving roller 52 will contact the outside of the drill bit, first flip inward, pass over the drill bit and then reset. At this time, the two moving rollers 52 will be stuck on the outside of the drill bit. When it wants to expand, the rotating plate 512 will rotate. Under the action of the wedge block 58, the two rotating plates 512 cannot flip outward, thus achieving the auxiliary effect.

[0048] At this time, the electromagnet column 4 is energized, attracting the drill bit. The lifting electric cylinder 85 extends, and the lifting electric cylinder 85 drives the moving pulley 86 to move horizontally, causing the wire rope 82 to expand, which in turn drives the crossbeam 3 to rise, so that the electromagnet column 4 drives the drill bit to rise, thus completing the work of the drill bit.

[0049] When dealing with the outer surfaces of different drilling tools, the electromagnetic control component 612 is controlled by the main electrical control device 65 and the wire 614. The electromagnetic control component 612 adjusts the current to the second electromagnet 613, causing a change in the distance between the second electromagnet 613 and the first electromagnet 611. At this time, the adjustment columns 64 at the four corners of the adjustment plate 63 change and rotate on the outer surface of the movable ball 67, thereby completing the angle adjustment of the electromagnet column 4 so that it can adhere to the outer surface of the irregular drilling tool.

[0050] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0051] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention.

Claims

1. A horizontal gripper device for oil drilling rigs, comprising a traveling beam (1), a track (2), and a crossbeam (3), wherein a fixed shell (7) is movably disposed between two of the traveling beams (1), characterized in that: Multiple electromagnet columns (4) are provided at both ends of the crossbeam (3). A tilting mechanism (6) is provided between the multiple electromagnet columns (4) and the crossbeam (3) for adjustment before the tilting mechanism (6) adsorbs the oil drilling tool. An anti-sway auxiliary guide mechanism (5) is provided on the outside of the multiple electromagnet columns (4) to prevent the oil drilling tool from swaying when moving. A pulley lifting mechanism (8) is provided on the fixed shell (7) to drive the crossbeam (3) and the multiple electromagnet columns (4) to lift and lower, thereby taking out the oil drilling tool. The tiltable mechanism (6) includes two connecting plates (61) disposed at the bottom of the crossbeam (3). A mounting plate (62) is disposed at the bottom of the two connecting plates (61). An adjusting plate (63) connected to the electromagnet column (4) is movably disposed at the bottom of the mounting plate (62). Fixed cylinders (66) are disposed inside the four corners of the mounting plate (62). Electromagnetic control components (612) are disposed at the top of each of the four fixed cylinders (66). An electric main control device (65) is disposed at the top of the mounting plate (62). Wires (614) are disposed between the electric main control device (65) and the four electromagnetic control components (612). An electromagnet second (613) is disposed at the bottom end of the fixed cylinder (66). An electromagnet first (611) is movably disposed inside the fixed cylinder (66). A movable rod (69) is disposed at the bottom end of the electromagnet first (611). A tension spring (610) adjacent to the inside of the fixed cylinder (66) is sleeved on the outside of the movable rod (69). A connecting rod (68) penetrating the fixed cylinder (66) is provided at the bottom end of the movable rod (69). An adjusting column (64) is provided at the top of the adjusting plate (63). A movable ball (67) connected to the connecting rod (68) is movably arranged inside the adjusting column (64). When it is necessary to deal with the outer surface of different drilling tools, the electromagnetic control component (612) needs to be controlled by the electric main control device (65) and the wire (614) to adjust the current of the second electromagnet (613), so that the distance between the second electromagnet (613) and the first electromagnet (611) changes. At this time, the adjusting columns (64) at the four corners of the adjusting plate (63) change and rotate on the outer surface of the movable ball (67), thereby completing the angle adjustment of the electromagnet column (4) so ​​that it can adsorb the outer surface of the irregular drilling tool.

2. The horizontal gripping drill bit holder device for oil drilling rigs according to claim 1, characterized in that: The inner side of the fixed shell (7) is provided with a second guide post (11), and the inner side of the second guide post (11) is provided with a first guide post (9). The bottom end of the first guide post (9) is provided with a mounting clip (10). The inner side of the mounting clip (10) is located on the outer side of the crossbeam (3). The outer side of the fixed shell (7) is provided with a mounting beam (12). The outer side of the mounting beam (12) is provided with a vertical plate (13). The side of the vertical plate (13) is provided with a load-bearing roller (14) that is movably connected to the inside of the track (2).

3. The horizontal gripping drill bit holder device for oil drilling rigs according to claim 2, characterized in that: The pulley lifting mechanism (8) includes two fixed clamps (83) disposed on the outside of the fixed housing (7). An adjusting seat (84) is provided on the inner side of each of the two fixed clamps (83). A lifting electric cylinder (85) is provided on the side of each of the two adjusting seats (84). A movable pulley (86) is provided at the end of each of the two lifting electric cylinders (85).

4. The horizontal gripping drill bit holder device for oil drilling rigs according to claim 3, characterized in that: The bottom of the mounting beam (12) is provided with a U-shaped frame (87), and a fixed pulley (88) is movably provided on the side of the U-shaped frame (87). A guide pulley (89) is movably provided on the inner side of the crossbeam (3). Two connecting seats (81) are provided on the outer side of the fixed shell (7). A steel wire rope (82) is provided inside one of the connecting seats (81). The steel wire rope (82) is connected to the other connecting seat (81) in sequence through a movable pulley (86), a fixed pulley (88), and a guide pulley (89).

5. The horizontal gripping drill bit holder device for oil drilling rigs according to claim 1, characterized in that: The anti-sway auxiliary guide mechanism (5) includes an electric telescopic rod (51) set at the bottom of the mounting beam (12). The bottom end of the electric telescopic rod (51) is provided with a lifting clamp (53). Two irregular rods (56) are movably arranged inside the lifting clamp (53). The sides of the two irregular rods (56) are provided with movable clamps (54). The interior of the two movable clamps (54) is rotatably provided with movable rollers (52).

6. The horizontal gripping drill bit holder device for oil drilling rigs according to claim 5, characterized in that: The irregular rod (56) is provided with a guide rod (59) that is movably connected to the lifting clamp (53). The irregular rod (56) has a groove (511) on its outer side. A torsion spring (510) is sleeved on the outer side of the guide rod (59). The two ends of the torsion spring (510) are respectively located on the inner side of the lifting clamp (53) and the groove (511).

7. The horizontal gripping drill bit holder device for oil drilling rigs according to claim 6, characterized in that: Rotating plates (512) are provided on the outer sides of the two irregular rods (56), a straight rod (513) is provided between the two rotating plates (512), a wedge (58) is movably provided between the sides of the two rotating plates (512), a threaded rod (57) is provided on the side of the wedge (58) and is threadedly connected to the inside of the lifting clamp (53), and a rotating disk (55) is provided at the end of the threaded rod (57).

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