A rotary drilling rig energy recovery main hoist system and rotary drilling rig

Abstract

The utility model relates to a kind of main winch system and rotary drilling rig of rotary drilling rig energy recovery in rotary drilling rig equipment technical field, including base and support frame on base, installation platform is set on base, installation platform is set reel, the both sides of reel are connected power input structure and energy recovery structure respectively, reel is connected with rotary digging portion by steel cable. Power input structure drives reel rotation, thereby traction steel cable, rotary digging portion is lifted, when rotary digging portion drops, reel receives the tension of steel cable and rotates, and then drive energy recovery structure to store energy. Energy recovery structure includes generator, generator and first clutch are connected, first clutch and first connecting shaft are connected, first connecting shaft is connected with reel, generator and battery are electrically connected. Rotary digging portion drives reel rotation, and is connected with generator by first connecting shaft and first clutch, drives generator to generate electricity, and the electricity generated is stored by battery.

Description

Technical Field

[0001] This utility model relates to the technical field of rotary drilling rig equipment, and in particular to a main winch system for energy recovery of a rotary drilling rig and a rotary drilling rig. Background Technology

[0002] During operation, rotary drilling rigs require a winch to lift and lower the drill rod. The lifting process requires a generator to provide power, and the engine drives the drum to rotate, which in turn lifts the drill rod. The lowering process also requires the engine to drive it, and the drill rod and drill bit release a large amount of gravitational potential energy. This energy is consumed by the engine during the lowering process, resulting in energy waste.

[0003] Therefore, to address the above problems, a main winch system for energy recovery in rotary drilling rigs is proposed to solve these issues. Utility Model Content

[0004] This invention addresses the shortcomings of existing technologies by developing a main winch system and a rotary drilling rig for energy recovery. This invention can recover some of the energy when the drill rod descends.

[0005] The technical solution of this utility model to solve the technical problem is as follows: a main winch system for energy recovery of a rotary drilling rig, including a base and a support frame on the base, an installation platform on the base, a drum on the installation platform, a power input structure and an energy recovery structure connected to both sides of the drum respectively, and the drum is connected to the rotary drilling unit through a steel cable.

[0006] The power input structure drives the drum to rotate, thereby pulling the steel cable and lifting the rotary drilling unit. When the rotary drilling unit descends, the drum receives the tension of the steel cable and rotates, which in turn drives the energy recovery structure to store energy.

[0007] Preferably, the energy recovery structure includes a generator connected to a first clutch, the first clutch connected to a first connecting shaft, the first connecting shaft connected to a drum, and the generator electrically connected to a battery.

[0008] The rotary drilling unit descends, causing the drum to rotate. It is connected to the generator through the first connecting shaft and the first clutch, which in turn drives the generator to generate electricity. The generated electricity is stored in a battery. When it is necessary to lift the rotary drilling unit with a traction cable, the first clutch is disconnected from the generator to avoid affecting the rotation of the drum.

[0009] Preferably, the power input structure includes a traction motor, which is connected to a second clutch. The second clutch is connected to a drum via a second connecting shaft, and the traction motor is connected to an external power supply system.

[0010] The traction motor drives the drum to rotate through the second clutch, thereby pulling the steel cable and lifting the rotary drilling section. When the rotary drilling section descends, the traction motor separates from the second connecting shaft through the second clutch, without affecting the descent of the rotary drilling section.

[0011] Preferably, the second connecting shaft is inserted into the limiting stage, and an outer disk is set inside the limiting stage. The second connecting shaft rotates through the outer disk, and an inner disk is set on the second connecting shaft. Multiple flying arms are hinged on the inner disk, and pawls are set on the flying arms. Multiple ratchet teeth are set on the inner disk.

[0012] When the rotary excavator descends too quickly, the drum rotates, and the boom swings due to the rotation of the drum. The pawl gets caught on the ratchet teeth, limiting the speed of the second connecting shaft and the drum to prevent the drum from rotating too fast and causing danger.

[0013] Preferably, the inner plate is provided with multiple mounting heads, each mounting head is provided with a rotating platform, a limiting rod is slidably connected inside the rotating platform, the limiting rod is hinged to the tail of the flying arm, and a compression spring is sleeved inside the limiting rod, with the two ends of the compression spring connected to the mounting head and the flying arm respectively.

[0014] By compressing the spring to push the tail of the boom, the pawl is prevented from getting stuck on the ratchet teeth when the boom is moving at low speeds on the drum, thus limiting the speed.

[0015] Preferably, a connecting frame is provided on the support frame, with the connecting frame located on both sides of the support frame. The connecting frame is inclined, and the support frame and the symmetrical connecting frame are in a "Y" shape. Guide wheels are provided on the connecting frame, and steel cables are placed on the guide wheels.

[0016] The connecting frame and the guide wheels on the connecting frame play a guiding role, reducing the friction of the steel cable.

[0017] The effects provided in the utility model description are merely those of the embodiments, and not all the effects of the utility model. The above technical solution has the following advantages or beneficial effects: The power input structure drives the drum to rotate, thereby pulling the steel cable and lifting the rotary drilling section. When the rotary drilling section descends, the drum receives the tension of the steel cable and rotates, which in turn drives the energy recovery structure to store energy. The rotary drilling unit descends, causing the drum to rotate. It is connected to the generator through the first connecting shaft and the first clutch, which in turn drives the generator to generate electricity. The generated electricity is stored in the battery. When it is necessary to lift the rotary drilling unit with a traction cable, the first clutch is disconnected from the generator to avoid affecting the rotation of the drum. The traction motor drives the drum to rotate through the second clutch, thereby pulling the steel cable and lifting the rotary drilling section. When the rotary drilling section descends, the traction motor separates from the second connecting shaft through the second clutch, without affecting the descent of the rotary drilling section. Attached Figure Description

[0018] The accompanying drawings are provided to further understand 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 and do not constitute a limitation thereof.

[0019] Figure 1 This is a schematic diagram of the structure of this utility model.

[0020] Figure 2 This is a cross-sectional schematic diagram of the limiting platform of this utility model.

[0021] Figure 3 Appendix to this utility model Figure 1 Enlarged schematic diagram of the structure at point A in the middle.

[0022] In the diagram, 1. Base; 2. Support frame; 3. Mounting platform; 4. Drum; 5. Steel cable; 6. Generator; 7. Rotary table; 8. First clutch; 9. First connecting shaft; 10. Traction motor; 11. Second clutch; 12. Second connecting shaft; 13. Limiting platform; 14. Outer disc; 15. Inner disc; 16. Flying arm; 17. Pawl; 18. Ratchet; 19. Mounting head; 20. Limiting rod; 21. Compression spring; 22. Connecting frame; 23. Guide wheel. Detailed Implementation

[0023] To clearly illustrate the technical features of this solution, the present invention will be described in detail below through specific embodiments and in conjunction with the accompanying drawings. The following disclosure provides many different embodiments or examples for implementing different structures of the present invention. To simplify the disclosure of the present invention, the components and arrangements of specific examples are described below. Furthermore, the present invention may repeat reference numerals and / or letters in different examples. This repetition is for simplification and clarity and does not in itself indicate a relationship between the various embodiments and / or arrangements discussed. It should be noted that the components illustrated in the drawings are not necessarily drawn to scale. The present invention omits descriptions of well-known components and processing techniques and processes to avoid unnecessarily limiting the present invention. The terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate orientation or positional relationships based on the orientation or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0024] like Figures 1 to 3 As shown, a main winch system for energy recovery in a rotary drilling rig includes a base 1 and a support frame 2 on the base 1. A mounting platform 3 is installed on the base 1, and a drum 4 is mounted on the mounting platform 3. A power input structure and an energy recovery structure are connected to opposite sides of the drum 4. The drum 4 is connected to the rotary drilling unit via a steel cable 5. The power input structure drives the drum 4 to rotate, thereby pulling the steel cable 5 and lifting the rotary drilling unit. When the rotary drilling unit descends, the drum 4 receives tension from the steel cable 5 and rotates, which in turn drives the energy recovery structure to store energy.

[0025] The energy recovery structure includes a generator 6, which is connected to a first clutch 8. The first clutch 8 is connected to a first connecting shaft 9, which is connected to a drum 4. The generator 6 is electrically connected to a battery. When the rotary excavator descends, it drives the drum 4 to rotate. The drum 4, connected to the generator 6 via the first connecting shaft 9 and the first clutch 8, generates electricity, which is stored in the battery. When the rotary excavator needs to be lifted by the traction cable 5, the first clutch 8 disengages from the generator 6 to avoid affecting the rotation of the drum 4.

[0026] The power input structure includes a traction motor 10, which is connected to a second clutch 11. The second clutch 11 is connected to a drum 4 via a second connecting shaft 12. The traction motor 10 is connected to an external power supply system. The traction motor 10 drives the drum 4 to rotate via the second clutch 11, thereby pulling the steel cable 5 and lifting the rotary drilling unit. When the rotary drilling unit descends, the traction motor 10 disengages from the second connecting shaft 12 via the second clutch 11, without affecting the descent of the rotary drilling unit.

[0027] The second connecting shaft 12 is inserted into the limiting platform 13. An outer disk 14 is installed inside the limiting platform 13. The second connecting shaft 12 rotates past the outer disk 14. An inner disk 15 is installed on the second connecting shaft 12. Multiple booms 16 are hinged to the inner disk 15. Pads 17 are installed on the booms 16, and multiple ratchet teeth 18 are installed on the inner disk 15. When the rotary excavator descends too quickly, the drum 4 rotates. The booms 16 swing under the action of the drum 4's rotation. The pads 17 engage with the ratchet teeth 18, limiting the speed of the second connecting shaft 12 and the drum 4 to prevent the drum 4 from rotating too quickly and causing danger.

[0028] Multiple mounting heads 19 are provided on the inner plate 15. A rotating platform 7 is provided on each mounting head 19. A limiting rod 20 is slidably connected inside the rotating platform 7. The limiting rod 20 is hinged to the tail of the flying arm 16. A compression spring 21 is sleeved inside the limiting rod 20. The two ends of the compression spring 21 are connected to the mounting head 19 and the flying arm 16, respectively. By pushing the tail of the flying arm 16 with the compression spring 21, the pawl 17 of the flying arm 16 is prevented from getting stuck on the ratchet 18 when the drum 4 is moving at low speed, thus playing a speed limiting role.

[0029] A connecting frame 22 is installed on the support frame 2, with the connecting frame 22 located on both sides of the support frame 2. The connecting frame 22 is inclined, and the support frame 2 and the symmetrical connecting frame 22 form a "Y" shape. Guide wheels 23 are installed on the connecting frame 22, and the steel cable 5 is mounted on the guide wheels 23. The connecting frame 22 and the guide wheels 23 on the connecting frame 22 provide guidance and reduce the friction of the steel cable 5.

[0030] Working principle: When the steel cable 5 descends, it drives the drum 4 to rotate. The traction motor 10 is separated from the second connecting shaft 12 through the second clutch 11. The first connecting shaft 9 and the first clutch 8 are connected to the generator 6, which drives the generator 6 to generate electricity. The generated electricity is stored through the battery. When it is necessary to pull the steel cable 5 to lift the rotary drilling unit, the first clutch 8 is disconnected from the generator 6. The traction motor 10 drives the drum 4 to rotate through the second clutch 11, thereby pulling the steel cable 5 and lifting the rotary drilling unit.

[0031] Although the specific embodiments of the utility model have been described above in conjunction with the accompanying drawings, this is not intended to limit the scope of protection of the utility model. Based on the technical solution of the utility model, various modifications or variations that can be made by those skilled in the art without creative effort are still within the scope of protection of the utility model.

Claims

1. A main winch system for energy recovery of a rotary drilling rig, comprising a base (1) and a support frame (2) on the base (1), characterized in that: The base (1) is provided with an installation platform (3), and the installation platform (3) is provided with a drum (4). The two sides of the drum (4) are respectively connected to a power input structure and an energy recovery structure. The drum (4) is connected to the rotary drilling part through a steel cable (5). The energy recovery structure includes a generator (6), which is connected to a first clutch (8). The first clutch (8) is connected to a first connecting shaft (9). The first connecting shaft (9) is connected to the drum (4). The generator (6) is electrically connected to a battery.

2. The main winch system for energy recovery of a rotary drilling rig according to claim 1, characterized in that: The power input structure includes a traction motor (10), which is connected to a second clutch (11). The second clutch (11) is connected to a drum (4) via a second connecting shaft (12). The traction motor (10) is connected to an external power supply system.

3. The main winch system for energy recovery of a rotary drilling rig according to claim 2, characterized in that: The second connecting shaft (12) is inserted into the limiting platform (13). An outer disk (14) is provided in the limiting platform (13). The second connecting shaft (12) rotates through the outer disk (14). An inner disk (15) is provided on the second connecting shaft (12). Multiple flying arms (16) are hinged on the inner disk (15). Pawls (17) are provided on the flying arms (16). Multiple ratchet teeth (18) are provided on the inner disk (15).

4. The main winch system for energy recovery of a rotary drilling rig according to claim 3, characterized in that: Multiple mounting heads (19) are provided on the inner plate (15). A rotating platform (7) is provided on the mounting head (19). A limiting rod (20) is slidably connected inside the rotating platform (7). The limiting rod (20) is hinged to the tail of the flying arm (16). A compression spring (21) is sleeved inside the limiting rod (20). The two ends of the compression spring (21) are respectively connected to the mounting head (19) and the flying arm (16).

5. The main winch system for energy recovery of a rotary drilling rig according to claim 1, characterized in that: The support frame (2) is provided with a connecting frame (22), the connecting frame (22) is provided on both sides of the support frame (2), the connecting frame (22) is inclined, the support frame (2) and the symmetrical connecting frame (22) are "Y" shaped, the connecting frame (22) is provided with a guide wheel (23), and the steel cable (5) is provided on the guide wheel (23).

6. A rotary drilling rig, characterized in that: The main winch system for energy recovery of a rotary drilling rig, as described in any one of claims 1 to 5.

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