A top drive multi-functional rig power head

Abstract

The utility model discloses a top drive multifunctional drilling rig power head, including base, the base one side is hinged and overturns the casing, the overturning casing top is hinged and is up to the frame that puffs, the up to the frame that puffs one side is equipped with drive assembly, and drive assembly output is equipped with the loading and unloading assembly, the loading and unloading assembly includes chuck, chuck sleeve and telescopic oil cylinder, the chuck sleeve is sleeved in one side of chuck, and a plurality of conical tracks are arranged equidistantly between the chuck sleeve and chuck, the chuck sleeve inside is equipped with the slip at the conical track, a plurality of telescopic oil cylinder piston ends are hinged equidistantly in chuck sleeve outside, and the other end of telescopic oil cylinder is hinged in chuck close to drive assembly one side, and the telescopic oil cylinder piston end is driven chuck sleeve to move up and down along chuck with the extension and retraction, to drive the radial retraction and the outer opening of slip, to clamp or loosen the drill rod, the utility model discloses, has the characteristics that the drill rod is convenient to disassemble.

Description

Technical Field

[0001] This utility model relates to the field of drilling equipment technology, specifically a top-drive multi-functional drilling rig power head. Background Technology

[0002] A hydraulic drilling rig is a drilling equipment with a hydraulic system as its core power source. It is widely used in geological exploration, mining, oil and gas drilling, engineering construction and other fields. It converts engine power into hydraulic energy through a hydraulic pump, and then drives the drill bit to rotate through hydraulic motors, cylinders and other actuators. During operation, the power head is the core component for realizing the rotation of the drill rod and loading and unloading of the drill bit. Its structural design directly affects the efficiency of drilling operations and the ease of maintenance.

[0003] A published Chinese patent, publication number CN201661237U, discloses a multi-functional power head for a fully hydraulic drilling rig. It includes a power head mounting base mounted on the drilling rig mast. The back of the power head mounting base has a vertical sliding guide surface that mates with the drilling rig mast. A transverse sliding rail is provided on the front of the power head mounting base. A transverse sliding seat is mounted on the transverse sliding rail. A transversely positioned rotating shaft is located on the upper part of the transverse sliding seat. The upper part of the drilling rig's power head assembly is fixedly connected to the rotating shaft. Power head tilting and tilting drive cylinders are located on both sides of the rotating shaft.

[0004] The power head assembly provided in this patent is fixed and does not have a dedicated quick docking and locking structure for drill pipe loading and unloading. After the drill pipe is placed into the power head assembly, multiple locking bolts need to be manually tightened to ensure a stable connection. Similarly, they need to be loosened one by one during disassembly, resulting in low efficiency of drill pipe assembly and disassembly, which is difficult to meet the current drilling engineering requirements for efficient operation. Utility Model Content

[0005] The purpose of this utility model is to provide a top-drive multi-functional drilling rig power head to solve the problems mentioned in the background art.

[0006] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a top-drive multi-functional drilling rig power head, including a base, a flip-up housing hinged to one side of the base, an uplift frame hinged to the top of the flip-up housing, a drive assembly provided on one side of the uplift frame, and a loading and unloading assembly provided at the output end of the drive assembly; The loading and unloading assembly includes a chuck, a chuck sleeve, and telescopic cylinders. The chuck sleeve is fitted onto one side of the chuck, and multiple conical tracks are equidistantly arranged between the chuck sleeve and the chuck. Inside the chuck sleeve, slips are provided at the conical tracks. The piston ends of the multiple telescopic cylinders are equidistantly hinged to the outside of the chuck sleeve, and the other end of the telescopic cylinder is hinged to the side of the chuck near the drive assembly. The extension and retraction of the piston ends of the telescopic cylinders drive the chuck sleeve to move up and down along the chuck, thereby causing the slips to radially retract inward and outward, thus clamping or releasing the drill pipe.

[0007] In one embodiment of the present invention, a tilting cylinder is hinged to the middle of the tilting housing, and the piston end of the tilting cylinder is hinged to the base.

[0008] In one embodiment of the present invention, the lifting frame is hinged to both the front and rear sides with lifting cylinders, and the piston ends of the lifting cylinders on both sides are hinged to the side of the lifting frame near the drive assembly.

[0009] In one embodiment of the present invention, the drive assembly includes a hydraulic motor, a three-speed gearbox, and a gearbox. The output end of the hydraulic motor is connected to the three-speed gearbox, the output end of the three-speed gearbox is connected to the gearbox, and the output end of the gearbox is connected to a chuck.

[0010] In one embodiment of the present invention, the gearbox is provided with an oil storage tank and a hydraulic oil pump on the side near the loading and unloading assembly, and a water tap is provided on the side of the gearbox away from the loading and unloading assembly, and the water tap is connected to the chuck.

[0011] In one embodiment of the present invention, a plug-in pin cylinder is provided on one side of the base, and a plurality of rollers are provided at equal intervals on the other side of the base. A lock hole seat matching the piston end of the plug-in pin cylinder is symmetrically provided on one side of the flipping housing.

[0012] Compared with the prior art, the beneficial effects achieved by this utility model are: (1) By setting up loading and unloading components, the chuck sleeve is driven to move up and down along the chuck by means of telescopic cylinder, thereby realizing the radial extension and retraction of the chuck along the conical track, replacing the traditional manual adjustment and fixed clamping structure. This design can automatically complete the rapid clamping and release of the drill rod without external auxiliary tools. It not only simplifies the operation process and shortens the loading and unloading time of the drill rod, but also ensures uniform clamping force through the equidistant conical track and chuck, avoiding the risk of thread damage or slippage of the drill rod due to uneven force, thus improving the efficiency and safety of loading and unloading the drill rod. (2) By setting up a flip shell, an uplifting frame and corresponding flip cylinder and uplifting cylinder, combined with the base's plug-in pin cylinder and lock hole seat, the flip cylinder can drive the flip shell to flip around the base, and the uplifting cylinder can drive the uplifting frame to adjust the angle, realizing the multi-posture adjustment of the power head, which can change the vertical loading and unloading of drill rods to the more convenient ground parallel loading and unloading of drill rods. With the three-speed gearbox of the drive component, different speeds and torque outputs can be achieved to adapt to different geological drilling needs. At the same time, the cooperation between the plug-in pin cylinder and the lock hole seat ensures the stability of the structure after flipping. The roller design facilitates the overall movement of the power head, further enhancing the equipment's operational flexibility and working condition applicability. Attached Figure Description

[0013] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings: Figure 1 This is a schematic diagram of the structural composition of this utility model; Figure 2 This is an isometric schematic diagram of this utility model; Figure 3 yes Figure 2 Enlarged view of point A in the middle; Figure 4 This is a cross-sectional schematic diagram of the present invention; In the diagram: 10. Base; 11. Insertion and removal pin cylinder; 12. Roller; 20. Tilting housing; 21. Tilting cylinder; 22. Locking hole seat; 30. Upward tilting frame; 31. Upward tilting cylinder; 40. Drive assembly; 41. Hydraulic motor; 42. Three-speed gearbox; 43. Gearbox; 431. Oil reservoir; 432. Hydraulic oil pump; 50. Loading and unloading assembly; 51. Chuck; 52. Chuck sleeve; 53. Telescopic cylinder; 54. Conical track; 55. Slip; 60. Faucet. Detailed Implementation

[0014] To enable those skilled in the art to better understand the present invention, the solutions in 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 should fall within the protection scope of the present invention.

[0015] This utility model provides a technical solution: a top-drive multi-functional drilling rig power head, including a base 10, a tilting shell 20 hinged to one side of the base 10, an upper tilting frame 30 hinged to the top of the tilting shell 20, and a drive assembly 40 provided on one side of the upper tilting frame 30. The drive assembly 40 includes a hydraulic motor 41, a three-speed gearbox 42, and a gearbox 43. The output end of the hydraulic motor 41 is connected to the three-speed gearbox 42, the output end of the three-speed gearbox 42 is connected to the gearbox 43, and the output end of the gearbox 43 is connected to the chuck 51. The hydraulic motor 41 provides a stable power source, which achieves a three-speed, six-speed output form through the three-speed gearbox 42. After power transmission and deceleration and torque increase through the gearbox 43, it drives the chuck 51 to rotate, meeting the drilling needs under different geological conditions. At the same time, the drive assembly 40 is integrated into one side of the upper tilting frame 30 and can move synchronously with the angle adjustment of the upper tilting frame 30 and the tilting shell 20, enhancing the power adaptability of the equipment under different working postures.

[0016] The output end of the drive assembly 40 is provided with a loading and unloading assembly 50, which includes a chuck 51, a chuck sleeve 52, and telescopic cylinders 53. The chuck sleeve 52 is fitted onto one side of the chuck 51, and multiple tapered tracks 54 are equidistantly arranged between the chuck sleeve 52 and the chuck 51. Inside the chuck sleeve 52, there are slips 55 at the tapered tracks 54. The piston ends of the multiple telescopic cylinders 53 are equidistantly hinged to the outside of the chuck sleeve 52, and the other end of the telescopic cylinders 53 is hinged to the side of the chuck 51 near the drive assembly 40. The extension and retraction of the piston ends of the telescopic cylinders 53 cause the chuck sleeve 52 to move up and down along the chuck 51. The movement drives the slips 55 to radially contract and expand, thereby clamping or releasing the drill pipe. The hydraulic driving force of the telescopic cylinder 53 drives the chuck sleeve 52 to slide up and down along the chuck 51, converting the axial movement into the radial extension and contraction of the slips 55, realizing the automatic clamping and release of the drill pipe. The drill pipe can be loaded and unloaded without the need for external auxiliary tools, which greatly simplifies the operation process and shortens the loading and unloading time of a single drill pipe. Compared with the traditional clamping structure, the equidistantly arranged conical rails 54 and slips 55 can ensure that the drill pipe is subjected to uniform force in the circumference, avoiding the deformation of the drill pipe or damage to the threads due to excessive local force.

[0017] A tilting cylinder 21 is hinged to the middle of the tilting housing 20, and the piston end of the tilting cylinder 21 is hinged to the base 10. The extension and retraction of the tilting cylinder 21 can drive the tilting housing 20 to tilt around the hinge point with the base 10 at multiple angles, thereby driving the upper tilting frame 30, drive assembly 40 and loading and unloading assembly 50 installed on the tilting housing 20 to adjust their overall posture, so as to tilt to an angle that is easy to operate, flexibly adapt to the operating position of the winch, and reduce the difficulty of winch alignment. The lifting frame 30 is hinged to lifting cylinders 31 on both the front and rear sides. The piston ends of the lifting cylinders 31 on both sides are hinged to the side of the lifting frame 30 near the drive assembly 40. The synchronous extension and retraction of the lifting cylinders 31 on both sides can drive the lifting frame 30 to adjust the lifting angle around its hinge point on the flip shell 20, thereby driving the drive assembly 40 and the loading and unloading assembly 50 to complete a secondary fine adjustment of their posture. When the lifting frame 30 is raised to a suitable angle, the drill rod docking direction of the loading and unloading assembly 50 can be changed from vertical to parallel to the ground, which greatly reduces the difficulty of loading and unloading the drill rod.

[0018] The gearbox 43 is equipped with an oil storage tank 431 and a hydraulic oil pump 432 on the side near the loading and unloading assembly 50, and a water tap 60 on the side of the gearbox 43 away from the loading and unloading assembly 50. The water tap 60 is connected to the chuck 51. The oil storage tank 431 and the hydraulic oil pump 432 form an independent hydraulic oil supply unit. When the power head rotates, it drives the hydraulic oil pump 432 to rotate, drawing oil from the oil storage tank 431. The oil outlet is connected to the radiator inside the gearbox 43, and then flows back to various rotating points such as the main shaft bearing, intermediate shaft bearing, and gearbox housing through the radiator. This cycle serves both lubrication and heat dissipation. At the same time, the water tap 60 injects drilling fluid, compressed air, or high-pressure mud into the drill pipe connected to the chuck 51 according to the drilling process requirements, realizing various methods such as conventional drilling, air hammer drilling, or high-pressure mud drilling. A plug-in pin cylinder 11 is provided on one side of the base 10, and several rollers 12 are provided at equal intervals on the other side of the base 10. A locking hole seat 22 matching the piston end of the plug-in pin cylinder 11 is provided on one side of the flipping housing 20. The cooperation between the plug-in pin cylinder 11 and the locking hole seat 22 can realize the quick locking and unlocking of the flipping housing 20 in the adjusted posture. Several rollers 12 make the power head more convenient and flexible during drilling feed or overall displacement.

[0019] Working principle: Before operation, the base 10 is moved to the preset position by the rollers 12. According to the requirements of loading and unloading the drill rod, the tilting cylinder 21 extends and retracts to drive the tilting housing 20 to tilt around the hinge point of the base 10. At the same time, the lifting cylinder 31 is controlled to extend and retract, driving the lifting frame 30, the drive assembly 40, and the loading and unloading assembly 50 to tilt upward as a whole until the drill rod docking direction of the loading and unloading assembly 50 is adjusted to the operating angle parallel to the ground. At this time, the piston end of the insertion and removal pin cylinder 11 extends and inserts into the corresponding locking hole seat 22 to complete the attitude locking of the tilting housing 20. During drill pipe installation, the piston end of the telescopic cylinder 53 retracts, causing the chuck sleeve 52 to slide upward along the chuck 51, and the slips 55 to expand radially outward along the tapered track 54, forming a space to accommodate the drill pipe. After the drill pipe is aligned, the piston end of the telescopic cylinder 53 extends, the chuck sleeve 52 moves downward, and the slips 55 retract radially inward along the tapered track 54 to evenly clamp the drill pipe, completing the installation. For drill pipe removal, the telescopic cylinder 53 is operated in the opposite direction to expand the slips 55 outward, allowing the drill pipe to be removed. The entire process is automated. The hydraulic motor 41 is started, and the power is switched by the three-speed gearbox 42 to a three-speed, six-speed output mode adapted to the current geological conditions. After being reduced in speed and increased in torque by the gearbox 43, it drives the chuck 51 to rotate, thereby driving the drill pipe to perform drilling operations. At the same time, the swivel 60 injects drilling fluid, compressed air, or high-pressure mud into the drill pipe connected to the chuck 51 according to the drilling process requirements, thereby realizing various methods such as conventional drilling, air hammer drilling, or high-pressure mud drilling; during air lift reverse circulation drilling, the cuttings at the bottom of the hole are efficiently discharged through the reverse flow of the medium. During drilling, the power head rotates synchronously to drive the hydraulic oil pump 432 to operate, drawing oil from the oil storage tank 431 and delivering it to the radiator inside the gearbox 43. The cooled lubricating oil is then precisely delivered through pipelines to rotating parts such as the main shaft bearing, intermediate shaft bearing, and gearbox housing. After lubrication, the lubricating oil flows back to the oil storage tank 431, forming a closed-loop cycle that continuously ensures the lubrication and heat dissipation of each component, ensuring the long-term stable operation of the equipment.

[0020] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation or specific orientation structure and operation, and therefore should not be construed as a limitation of this utility model; the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. In addition, unless otherwise explicitly specified and limited, the terms "installed," "connected," and "linked" should be interpreted broadly, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0021] In the description of this utility model, the terms "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of this utility model. In this utility model, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in a suitable manner in any one or more embodiments or examples. Moreover, those skilled in the art can combine different embodiments or examples and features of different embodiments or examples described in this utility model without contradiction.

[0022] Although embodiments of the present 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 present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A top-drive multi-functional drilling rig power head, comprising a base (10), a flip-up housing (20) hinged to one side of the base (10), an upper tilting frame (30) hinged to the top of the flip-up housing (20), a drive assembly (40) provided on one side of the upper tilting frame (30), and a loading and unloading assembly (50) provided at the output end of the drive assembly (40). Its features are: The loading and unloading assembly (50) includes a chuck (51), a chuck sleeve (52), and a telescopic cylinder (53). The chuck sleeve (52) is fitted on one side of the chuck (51), and multiple conical tracks (54) are equidistantly arranged between the chuck sleeve (52) and the chuck (51). Inside the chuck sleeve (52), there are slips (55) at the conical tracks (54). The piston ends of the multiple telescopic cylinders (53) are equidistantly hinged to the outside of the chuck sleeve (52), and the other end of the telescopic cylinder (53) is hinged to the side of the chuck (51) near the drive assembly (40). The extension and retraction of the piston end of the telescopic cylinder (53) causes the chuck sleeve (52) to move up and down along the chuck (51), thereby causing the slips (55) to radially retract and expand, thus clamping or releasing the drill rod.

2. The top-drive multi-functional drilling rig power head according to claim 1, characterized in that: A tilting cylinder (21) is hinged in the middle of the tilting housing (20), and the piston end of the tilting cylinder (21) is hinged to the base (10).

3. The top-drive multi-functional drilling rig power head according to claim 1, characterized in that: The lifting frame (30) is hinged to both the front and rear sides with lifting cylinders (31), and the piston ends of the lifting cylinders (31) on both sides are hinged to the side of the lifting frame (30) near the drive assembly (40).

4. The top-drive multi-functional drilling rig power head according to claim 1, characterized in that: The drive assembly (40) includes a hydraulic motor (41), a three-speed gearbox (42), and a gearbox (43). The output end of the hydraulic motor (41) is connected to the three-speed gearbox (42), the output end of the three-speed gearbox (42) is connected to the gearbox (43), and the output end of the gearbox (43) is connected to the chuck (51).

5. The top-drive multi-functional drilling rig power head according to claim 4, characterized in that: The gearbox (43) is provided with an oil storage tank (431) and a hydraulic oil pump (432) on the side near the loading and unloading assembly (50), and a water tap (60) is provided on the side of the gearbox (43) away from the loading and unloading assembly (50), and the water tap (60) is connected to the chuck (51).

6. The top-drive multi-functional drilling rig power head according to claim 1, characterized in that: The base (10) is provided with a plug-in pin cylinder (11) on one side, and a number of rollers (12) are provided at equal intervals on the other side of the base (10). The flip-out housing (20) is provided with a lock hole seat (22) symmetrically matched with the piston end of the plug-in pin cylinder (11) on one side.

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