A drill rod puller and method for a geological coring drill

Abstract

The present application relates to the technical field of drilling tools, and discloses a drill rod lifting device and lifting method of a geological drilling core drill, which comprises a lifting device body and a drill rod body, the lifting device body comprises a top plate and a support frame, the support frame is U-shaped, four groups of the support frames are symmetrically arranged at the bottom of the top plate, the drill rod body is arranged at the middle position of the four groups of support frames, a clamping assembly one for clamping the drill rod body is arranged on each support frame, a clamping assembly two is arranged below the clamping assembly one, a driving assembly is arranged at the middle of the top plate, and the clamping assembly one and the clamping assembly two are driven to move and clamped on the side wall of the drill rod body by the driving assembly. The driving assembly, the clamping assembly one and the clamping assembly two are arranged, so that the drill rod body can be quickly clamped and fixed, the pin shaft assembly is arranged, so that the damaged parts can be replaced, and the use is more convenient.

Description

Technical Field

[0001] This invention relates to the field of drilling rig tool technology, and more specifically to a drill rod lifter and lifting method for a geological drilling core drilling rig. Background Technology

[0002] The hoist, also known as a "power breaker" or "rotary joint," is primarily used to lift and hold drill pipes and drill tools. Core drilling rigs are mainly used for the general survey and exploration of metallic and non-metallic solid minerals. During drilling operations with a power head drilling rig, as the well progresses, workers frequently need to add and remove drill pipes. Currently, the main method for adding drill pipes involves attaching a mushroom head to the drill pipe, then lifting it with a wire rope and manually engaging the power head. This process of adding and removing the mushroom head is time-consuming and labor-intensive, affecting drilling efficiency. Therefore, an improvement is needed. We propose a drill pipe hoist for geological core drilling rigs.

[0003] Existing drill pipes are prone to loosening of the connection with the hoist after prolonged use, which may even lead to the drill pipe falling off the hoist, affecting drilling operations and potentially threatening worker safety. Improvements are needed. Summary of the Invention

[0004] The main technical problem solved by this invention is to provide a drill rod lifter and lifting method for a geological drilling core drilling rig, which can effectively solve the problems in the background art.

[0005] To solve the above-mentioned technical problems, according to one aspect of the present invention, more specifically, a drill pipe lifter and lifting method for a geological drilling core drilling rig, comprising a lifter body and a drill pipe body, the lifter body comprising a top plate and a support frame, the support frame being U-shaped, the support frame being provided in four sets and symmetrically fixedly connected to the bottom perimeter of the top plate, the drill pipe body being positioned in the middle of the four sets of support frames, each support frame being equipped with a clamping component one for clamping the drill pipe body, a clamping component two being provided below the clamping component one, and a driving component being provided in the middle of the top plate, the driving component driving the clamping component one and the clamping component two to move and clamp onto the side wall of the drill pipe body.

[0006] Furthermore, the clamping assembly includes a movable rod one, a diagonal rod one, a connecting rod one, a diagonal rod two, a connecting rod two, and a pin assembly. The diagonal rod one and diagonal rod two are symmetrically arranged on the upper and lower sides of the support frame. The adjacent ends of the diagonal rod one and diagonal rod two are rotatably mounted in the middle position of the support frame through the pin assembly. The end of the movable rod one is fixedly connected to a clamping block one, which fits against the side wall of the drill pipe body. A through-slot one is opened in the middle of the movable rod one. The adjacent ends of the diagonal rod one and diagonal rod two are respectively temporarily clamped on both sides of the movable rod one. The pin assembly on the support frame passes through the through-slot one. The connecting rod one and connecting rod two are symmetrically arranged in the middle position of the diagonal rod one and diagonal rod two. The adjacent ends of the connecting rod one and connecting rod two are rotatably connected to the end of the movable rod one away from the clamping block one through the pin assembly. The opposite ends of the connecting rod one and connecting rod two are rotatably connected to the middle position of the diagonal rod one and diagonal rod two through the pin assembly.

[0007] Furthermore, the clamping assembly two includes a movable rod two, with a through-slot two in the middle of the movable rod two. A limiting rod one and a limiting rod two are arranged side by side in the middle of the long slot two. Both the limiting rod one and the limiting rod two pass through the long slot two and are fixedly connected at both ends to the inner wall of the support frame. A sliding cavity three is formed inside the movable rod two. The end of the sliding cavity three near the drill rod body is open. A spring three is installed inside the sliding cavity three. The two ends of the spring three are fixedly connected to the inner wall of the sliding cavity three and the limiting rod one, respectively. A sliding rod is slidably installed in the open end of the sliding cavity three. A clamping block two is fixedly connected to the end of the sliding rod. The clamping block two fits against the side wall of the drill rod body. A spring two is arranged between the clamping block two and the movable rod two. The spring two is sleeved on the sliding rod. The two ends of the spring two are fixedly connected to the side wall of the movable rod two and the clamping block two, respectively.

[0008] Furthermore, the drive assembly includes a motor fixedly mounted in the middle of the upper surface of the top plate. A rotating shaft is coaxially fixedly connected to the output end of the motor. The rotating shaft extends vertically downward to the bottom of the top plate. A gear disk is fixedly connected to the end of the rotating shaft. Helical gears are symmetrically arranged around the gear disk and mesh with the gear disk. A threaded rod is fixedly connected to the middle of the side of the helical gear. A drive rod is provided on the side of the helical gear away from the gear disk. A threaded hole is opened inside the end of the drive rod near the helical gear. The threaded rod and the threaded hole are threadedly connected. A support seat is provided on the side of the helical gear. The threaded rod is rotatably mounted on the bottom of the support seat. The top of the support seat is fixedly connected to the lower surface of the top plate. A cross groove is opened at the top of the helical rod. The end of the drive rod away from the helical gear is movably inserted into the middle of the cross groove. Limiting blocks are fixedly connected to both sides of the end of the drive rod. The limiting blocks are movably inserted into the cross groove.

[0009] Furthermore, the pin assembly includes a baffle plate one, a shaft body fixedly connected to the side of the baffle plate one, a cylindrical movable cavity formed in the middle of the end of the shaft body near the baffle plate one, a movable plate slidably installed inside the movable cavity, and a spring one for resetting the movable plate installed inside the movable cavity. A cylindrical sliding cavity one formed in the middle of the end of the shaft body away from the baffle plate one, the inner diameter of the sliding cavity one being smaller than the inner diameter of the movable cavity, a plug rod slidably installed in the middle of the sliding cavity one, the plug rod fitting into the sliding cavity one, a baffle plate two fixedly connected to the end of the plug rod, the baffle plate two fitting against the end of the shaft body away from the baffle plate one, a connecting block provided at the end of the plug rod away from the baffle plate two, and symmetrically fixedly connected to the sides of the connecting block. The limiting block has elongated grooves symmetrically formed on both sides of the inner wall of the sliding cavity. The sliding cavity and the adjacent sidewall of the movable cavity have symmetrically formed slots that can engage with the limiting block. The slots and the sliding grooves are perpendicular to each other. The insert rod has a sliding cavity in the middle of its inner end near the connecting block. A rectangular block is slidably installed inside the sliding cavity. One end of the rectangular block is fixedly connected to the connecting block. The other end of the rectangular block has a threaded hole in the middle. A threaded rod is threadedly connected to the middle of the threaded hole. The end of the threaded rod away from the rectangular block passes through a through hole formed between the insert rod and the baffle. A rotating plate is fixedly connected to the end of the threaded rod. The threaded rod and the baffle are rotatably connected.

[0010] Furthermore, limit strips are fixedly connected to the two side walls of the drive rod, and limit grooves are opened on the upper inner wall of the support frame, with the limit strips slidably disposed in the limit grooves.

[0011] Furthermore, a slot is provided on the drill rod body, and the slot is adapted to the clamping block.

[0012] Furthermore, a lifting ring is fixedly connected to the top of the top plate.

[0013] Furthermore, a base plate is fixedly connected to the bottom of the support frame, and a through hole is provided in the middle of the base plate. The through hole is adapted to the drill rod body, and a chamfer is provided at the bottom of the through hole.

[0014] A method for lifting the drill rod lifter of a geological drilling core drilling rig includes the following steps:

[0015] S1. Start the motor. The motor drives the rotating shaft and gear disk to rotate, which in turn drives the helical gear and threaded rod 2 to rotate, pushing the drive rod to move away from the center. The end of the drive rod slides inside the cross groove, causing the helical rod 1 to rotate outward. Simultaneously, it drives the connecting rod 1 and connecting rod 2 to fold and retract towards the center, driving the movable rod 1 and clamping block 1 to move away from the center. Then, insert the drill rod body through the through hole in the middle of the base plate until it is adjacent to the gear disk. Control the motor to move in the opposite direction, driving the rotating shaft, gear disk, helical gear, threaded rod 2, drive rod, helical rod 1, connecting rod 1 and connecting rod 2 to move in the opposite direction, which in turn pushes the movable rod 1 and clamping block 1 to move in the opposite direction, so that the clamping block 1 is clamped in the slot 1 position of the drill rod body, and simultaneously limiting and fixing the drill rod body up and down and left and right.

[0016] S2. When the inclined rod rotates outward, the connecting rod 1 and the connecting rod 2 cause the inclined rod 2 to rotate outward synchronously. At this time, under the action of the spring 3, the movable rod 2 and the clamping block 2 are pushed outward to facilitate the insertion of the drill rod body. When the motor drives the related structure to move in the opposite direction, the inclined rod 2 squeezes the movable rod 2 and the clamping block 2. Through the cooperation of the limiting rod 1, the limiting rod 2 and the long groove 2, the movable rod 2 and the clamping block 2 move horizontally and clamp on the side of the drill rod body. By setting the sliding rod and the spring 2, a buffering effect is achieved, and the clamping effect is improved.

[0017] S3. When device components are damaged and need replacement or repair, first press down on baffle one and baffle two, then rotate the rotating plate. The rotating plate will drive the threaded rod one to rotate, pushing the rectangular block inward along the sliding cavity two until the connecting block drives the limiting block one to disengage from the slot two. Then, keep baffle one stationary and rotate baffle two and the rotating plate so that the limiting block one rotates to the position aligned with the sliding groove. At this point, the connecting block, rectangular block, limiting block one, threaded rod one, and insert rod can be pulled out together from the sliding cavity one in the rod body. After that, baffle one and the shaft can be removed. The pin assembly can be disassembled without tools, making it easy to replace damaged parts. During assembly, the connecting block, rectangular block, limit block one, threaded rod one, and insert rod one are inserted along the slide cavity one. Rotate the baffle one so that the limit block one rotates to the position corresponding to the slot two. Then, the rotating plate, threaded rod one, rectangular block, and connecting block move in the opposite direction, causing the limit block one to engage inside the slot two. Furthermore, the spring pushes the movable plate against the side of the connecting block, ensuring that the limit block one is always engaged inside the slot, making the installation more stable.

[0018] The beneficial effects of the drill rod lifter and lifting method for a geological drilling core drilling rig of the present invention are as follows:

[0019] 1. This invention clamps and limits the drill rod body by setting up a drive assembly and a clamping assembly. When in use, the motor is started, and the motor drives the rotating shaft and gear disk to rotate, which in turn drives the helical gear and the second threaded rod to rotate, pushing the drive rod to move away from the center. The end of the drive rod slides inside the cross groove, causing the first helical rod to rotate outward, simultaneously driving the first connecting rod and the second connecting rod to fold and retract towards the center, and driving the first movable rod and the first clamping block to move away from the center. Then, the drill rod body is inserted into the through hole in the middle of the base plate until it is adjacent to the gear disk. The motor is controlled to move in the opposite direction, driving the rotating shaft, gear disk, helical gear, second threaded rod, drive rod, first helical rod, first connecting rod and the second connecting rod to move in the opposite direction, which in turn pushes the first movable rod and the first clamping block to move in the opposite direction, so that the first clamping block is clamped in the slot of the drill rod body, and simultaneously limiting and fixing the drill rod body vertically and horizontally.

[0020] 2. The drill pipe body is further clamped and fixed by setting up clamping component two. When the inclined rod one in clamping component one rotates outward, the inclined rod two rotates outward synchronously through connecting rod one and connecting rod two. At this time, under the action of spring three, the movable rod two and clamping block two are pushed outward to facilitate the insertion of the drill pipe body. When the motor drives the related structure to move in the opposite direction, the inclined rod two squeezes the movable rod two and clamping block two. Through the cooperation of limiting rod one, limiting rod two and long groove two, the movable rod two and clamping block two move horizontally and clamp on the side of the drill pipe body. The sliding rod and spring two play a buffering role and improve the clamping effect.

[0021] 3. The pin assembly facilitates the disassembly and replacement of damaged parts. During use, press and hold baffle one and baffle two, then rotate the rotating plate. The rotating plate drives the threaded rod one to rotate, pushing the rectangular block inward along the sliding cavity two until the connecting block drives the limiting block one to disengage from the slot two. Then, keep baffle one stationary and rotate baffle two and the rotating plate until the limiting block one rotates to the position aligned with the sliding groove. At this point, the connecting block, rectangular block, limiting block one, threaded rod one, and insert rod can be pulled out together from the sliding cavity one in the rod body. Then, baffle one and the shaft can be removed. This allows for the disassembly of the pin assembly without the need for tools, facilitating the replacement of damaged parts. During assembly, the connecting block, rectangular block, limit block one, threaded rod one, and insert rod one are inserted along the slide cavity one. The baffle one is rotated so that the limit block one rotates to the position corresponding to the slot two. Then, the rotating plate, threaded rod one, rectangular block, and connecting block move in the opposite direction, causing the limit block one to engage inside the slot two. Furthermore, the spring pushes the movable plate against the side of the connecting block, ensuring that the limit block one is always engaged inside the slot, making the installation more stable. Attached Figure Description

[0022] The present invention will now be described in further detail with reference to the accompanying drawings and specific implementation methods.

[0023] Figure 1 This is a complete structural schematic diagram of the drill rod lifting device and lifting method of a geological drilling core drilling rig according to the present invention;

[0024] Figure 2 This is a partial schematic diagram of a drill rod lifting device and lifting method for a geological drilling core drilling rig according to the present invention;

[0025] Figure 3 This invention relates to a drill rod lifter and lifting method for a geological drilling core drilling rig. Figure 2 Enlarged schematic diagram of the structure at point A in the diagram;

[0026] Figure 4 This invention relates to a drill rod lifter and lifting method for a geological drilling core drilling rig. Figure 2 Enlarged schematic diagram of the structure at point B in the diagram;

[0027] Figure 5 This is a schematic diagram of the clamping component two of the drill rod lifting device and lifting method for a geological drilling core drilling rig according to the present invention;

[0028] Figure 6 This is a partial cross-sectional view of a drill rod lifting device and lifting method for a geological drilling core drilling rig according to the present invention.

[0029] Figure 7 This invention relates to a drill rod lifter and lifting method for a geological drilling core drilling rig. Figure 6 Enlarged schematic diagram of the structure at point C;

[0030] Figure 8 This is a plan view of a drill rod lifter and lifting method for a geological drilling core drilling rig according to the present invention.

[0031] Figure 9 This is a schematic diagram of the internal partial structure of the pin assembly of the drill rod lifting device and lifting method of a geological drilling core drilling rig according to the present invention.

[0032] Figure 10 This is an external schematic diagram of the pin assembly of the drill rod lifting device and lifting method of a geological drilling core drilling rig according to the present invention.

[0033] Figure 11 This is a schematic diagram showing the positions of the slide and the chuck two in the drill rod lifting device and lifting method of a geological drilling core drilling rig according to the present invention.

[0034] In the diagram: 1. Lifter body; 2. Drill pipe body; 21. Slot 1; 3. Support frame; 31. Limiting slot; 4. Clamping assembly 1; 41. Movable rod 1; 42. Clamping block 1; 43. Long slot 1; 44. Diagonal rod 1; 45. Connecting rod 1; 46. Connecting rod 2; 47. Diagonal rod 2; 48. Cross groove; 5. Pin assembly; 51. Baffle 1; 52. Shaft; 53. Movable cavity; 54. Spring 1; 55. Movable plate; 56. Connecting block; 57. Limiting block 1; 58. Slot 2; 59. Slide cavity 1; 510. Insert rod; 511. Slide cavity 2; 512. Rectangular block; 513. Slide groove; 5 14. Threaded hole one; 515. Threaded rod one; 516. Baffle two; 517. Rotating plate; 6. Clamping assembly two; 61. Movable rod two; 62. Limiting rod one; 63. Limiting rod two; 64. Long groove two; 65. Spring two; 66. Clamping block two; 67. Slide rod; 68. Slide cavity three; 69. Spring three; 7. Drive assembly; 71. Motor; 72. Rotating shaft; 73. Gear disk; 74. Helical gear; 75. Threaded rod two; 76. Support base; 77. Drive rod; 78. Threaded hole two; 79. Limiting strip; 710. Limiting block two; 8. Top plate; 9. Lifting ring; 10. Bottom plate; 11. Through hole. Detailed Implementation

[0035] The present invention will be described in detail below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in the present application can be combined with each other.

[0036] like Figures 1-11 According to one aspect of the present invention, a drill rod lifter and lifting method for a geological drilling core drilling rig are provided, comprising a lifter body 1 and a drill rod body 2. The lifter body 1 includes a top plate 8 and a support frame 3. The support frame 3 is U-shaped and has four sets of symmetrical fixed connections around the bottom of the top plate 8. The drill rod body 2 is located in the middle of the four sets of support frames 3. Each support frame 3 is equipped with a clamping component 1 4 for clamping the drill rod body 2. A clamping component 2 6 is provided below the clamping component 1 4. A driving component 7 is provided in the middle of the top plate 8. The driving component 7 drives the clamping component 1 4 and the clamping component 2 6 to move and clamp onto the side wall of the drill rod body 2.

[0037] In this embodiment, the clamping assembly includes a movable rod 41, a diagonal rod 44, a connecting rod 45, a diagonal rod 47, a connecting rod 46, and a pin assembly 5. The diagonal rods 44 and 47 are symmetrically arranged on the upper and lower sides of the support frame 3. The adjacent ends of the diagonal rods 44 and 47 are rotatably mounted in the middle position of the support frame 3 through the pin assembly 5. A clamping block 42 is fixedly connected to the end of the movable rod 41. The clamping block 42 fits against the side wall of the drill rod body 2. A through-hole is opened in the middle of the movable rod 41. The adjacent ends of the long slot 43, the diagonal rod 44, and the diagonal rod 47 are respectively clamped on both sides of the movable rod 41. The pin assembly 5 on the support frame 3 passes through the long slot 43. The connecting rod 45 and the connecting rod 46 are symmetrically arranged in the middle of the diagonal rod 44 and the diagonal rod 47. The adjacent ends of the connecting rod 45 and the connecting rod 46 are rotatably connected to the end of the movable rod 41 away from the clamping block 42 through the pin assembly 5. The opposite ends of the connecting rod 45 and the connecting rod 46 are respectively connected by the pin assembly. 5. The rotatable connection is located at the middle of the first inclined rod 44 and the second inclined rod 47. During operation, the motor 71 is started, which drives the rotating shaft 72 and the gear disk 73 to rotate, thereby driving the helical gear 74 and the second threaded rod 75 to rotate, pushing the drive rod 77 to move away from the center. The end of the drive rod 77 slides inside the cross groove 48, causing the first inclined rod 44 to rotate outward, simultaneously driving the first connecting rod 45 and the second connecting rod 46 to fold and retract towards the center, and driving the first movable rod 41 and the clamping block 42 to move away from the center. The drill rod body 2 is inserted into the through hole 11 in the middle of the base plate 10 until it is adjacent to the gear disk 73. The motor 71 is controlled to move in the opposite direction, driving the rotating shaft 72, gear disk 73, helical gear 74, threaded rod 75, drive rod 77, inclined rod 44, connecting rod 45 and connecting rod 46 to move in the opposite direction. This, in turn, pushes the movable rod 41 and clamping block 42 to move in the opposite direction, so that the clamping block 42 is clamped in the slot 21 of the drill rod body 2, and simultaneously limits and fixes the drill rod body 2 in the up and down and left and right directions.

[0038] In this embodiment, the clamping assembly 2 6 includes a movable rod 2 61. A through-slot 2 64 is formed in the middle of the movable rod 2 61. A limiting rod 1 62 and a limiting rod 2 63 are arranged side-by-side in the middle of the slot 2 64. Both limiting rod 1 62 and limiting rod 2 63 pass through the slot 2 64 and are fixedly connected at both ends to the inner wall of the support frame 3. A sliding cavity 3 68 is formed inside the movable rod 2 61. The end of the sliding cavity 3 68 near the drill rod body 2 is open. A spring 3 69 is installed inside the sliding cavity 3 68. Both ends of the spring 3 69 are fixedly connected to the inner wall of the sliding cavity 3 68 and the limiting rod 1 62, respectively. A sliding rod 67 is slidably installed in the open end of the sliding cavity 3 68. A clamping block 2 66 is fixedly connected to the end of the sliding rod 67. The clamping block 2 66 fits against the side wall of the drill rod body 2. The clamping block 2 66 and the movable rod 2 61 are connected... A second spring 65 is provided, which is sleeved on the slide rod 67. The two ends of the second spring 65 are fixedly connected to the side walls of the movable rod 61 and the clamping block 66, respectively. During operation, when the first inclined rod 44 rotates outward, the second inclined rod 47 rotates outward synchronously through the first connecting rod 45 and the second connecting rod 46. At this time, under the action of the third spring 69, the movable rod 61 and the clamping block 66 are pushed outward to facilitate the insertion of the drill rod body 2. When the motor 71 drives the related structure to move in the opposite direction, the second inclined rod 47 squeezes the movable rod 61 and the clamping block 66. Through the cooperation of the first limiting rod 62, the second limiting rod 63 and the second long groove 64, the movable rod 61 and the clamping block 66 move horizontally and clamp on the side of the drill rod body 2. The slide rod 67 and the second spring 65 play a buffering role and improve the clamping effect.

[0039] In this embodiment, the drive assembly 7 includes a motor 71 fixedly mounted in the middle of the upper surface of the top plate 8. A rotating shaft 72 is coaxially fixedly connected to the output end of the motor 71. The rotating shaft 72 extends vertically downward to the bottom of the top plate 8. A gear disk 73 is fixedly connected to the end of the rotating shaft 72. Helical gears 74 are symmetrically arranged around the gear disk 73 and mesh with the gear disk 73. A threaded rod 75 is fixedly connected to the middle of the side of the helical gear 74. A drive rod 77 is arranged on the side of the helical gear 74 away from the gear disk 73. A threaded hole 78 is opened inside the end of the drive rod 77 near the helical gear 74. The threaded rod 75 and the threaded hole 78 are connected together. The device features an 8-threaded connection. Support seats 76 are provided on both sides of the helical gear 74. A threaded rod 75 is rotatably mounted on the bottom of the support seats 76. The top of the support seats 76 is fixedly connected to the lower end surface of the top plate 8. A cross groove 48 is provided at the top of the helical rod 44. The end of the drive rod 77 away from the helical gear 74 is movably inserted into the middle of the cross groove 48. Limiting blocks 710 are fixedly connected to both sides of the end of the drive rod 77. The limiting blocks 710 are movably inserted into the cross groove 48. During operation, the motor 71 drives the rotating shaft 72, gear disk 73, helical gear 74, threaded rod 75, and drive rod 77 to move, thereby driving the clamping assembly 4 to move.

[0040] In this embodiment, the pin assembly 5 includes a baffle 51, a shaft 52 fixedly connected to the side of the baffle 51, a cylindrical movable cavity 53 formed in the middle of the end of the shaft 52 near the baffle 51, a movable plate 55 slidably mounted inside the movable cavity 53, and a spring 54 for resetting the movable plate 55 installed inside the movable cavity 53. A cylindrical sliding cavity 59 formed in the middle of the end of the shaft 52 away from the baffle 51, the inner diameter of the sliding cavity 59 being smaller than the inner diameter of the movable cavity 53, and a rod 510 slidably mounted in the middle of the sliding cavity 59, the rod 510 and the sliding cavity 59 being adapted to each other. A baffle 516 is fixedly connected to the end of the rod 510, the baffle 516 and the end of the shaft 52 away from the baffle 51 are in contact, and the rod 510 is further away from the baffle 51. A connecting block 56 is provided at the end of the baffle 2 516. A limiting block 1 57 is symmetrically fixedly connected to the side of the connecting block 56. Long strip-shaped sliding grooves 513 are symmetrically opened on both sides of the inner wall of the sliding cavity 1 59. The adjacent side walls of the sliding cavity 1 59 and the movable cavity 53 are symmetrically opened with slots 2 58 that can engage with the limiting block 1 57. The slots 2 58 and the sliding grooves 513 on both sides are arranged perpendicular to each other. A sliding cavity 2 511 is opened in the middle of the end of the insertion rod 510 near the connecting block 56. A rectangular block 512 is slidably installed in the sliding cavity 2 511. One end of the rectangular block 512 is fixedly connected to the connecting block 56. A threaded hole 1 514 is opened in the middle of the other end of the rectangular block 512. A threaded rod 1 515 is threadedly connected in the middle of the threaded hole 1 514. One end of the threaded rod 512, away from the rectangular block 512, passes through a through hole between the insert rod 510 and the baffle 516. A rotating plate 517 is fixedly connected to the end of the threaded rod 515. The threaded rod and the baffle 516 are rotatably connected. During operation, when a component of the device is damaged and needs to be replaced or repaired, first press down the baffle 51 and the baffle 516, then rotate the rotating plate 517. The rotating plate 517 drives the threaded rod 515 to rotate, pushing the rectangular block 512 inward along the slide cavity 511 until the connecting block 56 drives the limiting block 57 to disengage from the slot 58. Then, keep the baffle 51 stationary and rotate the baffle 516 and the rotating plate 517 so that the limiting block 57 rotates to the position aligned with the slide groove 513. At this time, the connecting block 56 and the rectangular block 512 can be connected. 2. The limiting block 57, threaded rod 515, and insert rod 510 are pulled out together from the sliding cavity 59 in the rod body. Then, the baffle 51 and shaft 52 can be removed. This allows for the disassembly of the pin assembly 5 without the need for tools, facilitating the replacement of damaged parts. During assembly, the connecting block 56, rectangular block 512, limiting block 57, threaded rod 515, and insert rod 510 are inserted along the sliding cavity 59. The baffle 51 is rotated so that the limiting block 57 rotates to the position corresponding to the slot 58. Then, the rotating plate 517, threaded rod 515, rectangular block 512, and connecting block 56 move in the opposite direction, causing the limiting block 57 to engage inside the slot 58. The spring pushes the movable plate 55 against the side of the connecting block 56.This ensures that the limiting block 57 is always engaged inside the slot, making the installation more stable. The system includes a lifting device body 1 and a drill pipe body 2. The lifting device body 1 includes a top plate 8 and support frames 3. The support frames 3 are U-shaped and have four sets symmetrically fixedly connected to the bottom perimeter of the top plate 8. The drill pipe body 2 is positioned in the middle of the four sets of support frames 3. Each support frame 3 is equipped with a clamping component 1 for clamping the drill pipe body 2. A clamping component 2 is located below the clamping component 1. A driving component 7 is located in the middle of the top plate 8. The driving component 7 drives the clamping components 1 and 2 to move and clamp onto the side wall of the drill pipe body 2.

[0041] In this embodiment, limit strips 79 are fixedly connected to the two side walls of the drive rod 77, and a limit groove 31 is opened on the upper inner wall of the support frame 3. The limit strips 79 are slidably disposed in the limit groove 31. During operation, the limit strips 79 and the limit groove 31 cooperate to restrict the movement direction of the drive rod 77.

[0042] In this embodiment, a slot 21 is provided on the upper part of the drill rod body 2. The slot 21 and the clamping block 42 are adapted to each other. During operation, the clamping block 42 is engaged in the slot 21, thereby limiting the drill rod body 2 in the vertical direction.

[0043] In this embodiment, a lifting ring 9 is fixedly connected to the top of the top plate 8, which facilitates the lifting of the hoist body 1 and the drill rod body 2 together by means of a winch, cable and lifting ring 9 during operation.

[0044] In this embodiment, a base plate 10 is fixedly connected to the bottom of the support frame 3. A through hole 11 is provided in the middle of the base plate 10. The through hole 11 is adapted to the drill rod body 2. A chamfer is provided at the bottom of the through hole 11. During operation, the drill rod body 2 can be initially limited.

[0045] A method for lifting the drill rod lifter of a geological drilling core drilling rig includes the following steps:

[0046] S1. Start motor 71. Motor 71 drives shaft 72 and gear disk 73 to rotate, which in turn drives helical gear 74 and threaded rod 75 to rotate, pushing drive rod 77 to move away from the center. The end of drive rod 77 slides inside cross groove 48, causing helical rod 44 to rotate outward, simultaneously driving connecting rod 45 and connecting rod 46 to fold and retract towards the center, driving movable rod 41 and clamping block 42 to move away from the center. Then, insert drill rod body 2 into the through hole 11 in the middle of base plate 10 until it is adjacent to gear disk 73. Control motor 71 to move in the opposite direction, driving shaft 72, gear disk 73, helical gear 74, threaded rod 75, drive rod 77, helical rod 44, connecting rod 45 and connecting rod 46 to move in the opposite direction, which in turn pushes movable rod 41 and clamping block 42 to move in the opposite direction, so that clamping block 42 is clamped in slot 21 of drill rod body 2, limiting and fixing drill rod body 2 up and down and left and right at the same time.

[0047] S2. When the inclined rod 44 rotates outward, the connecting rod 45 and the connecting rod 46 cause the inclined rod 47 to rotate outward synchronously. At this time, under the action of the spring 69, the movable rod 61 and the clamping block 66 are pushed outward to facilitate the insertion of the drill rod body 2. When the motor 71 drives the related structure to move in the opposite direction, the inclined rod 47 squeezes the movable rod 61 and the clamping block 66. Through the cooperation of the limiting rod 62, the limiting rod 63 and the long groove 64, the movable rod 61 and the clamping block 66 move horizontally and are clamped on the side of the drill rod body 2. The sliding rod 67 and the spring 65 play a buffering role and improve the clamping effect.

[0048] S3. When device components are damaged and need replacement or repair, first press down on baffle 1 51 and baffle 2 516, then rotate the rotating plate 517. The rotating plate 517 drives the threaded rod 1 515 to rotate, pushing the rectangular block 512 inward along the sliding cavity 2 511 until the connecting block 56 drives the limiting block 1 57 to disengage from the slot 2 58. Then, keep baffle 1 51 stationary and rotate baffle 2 516 and rotating plate 517 so that the limiting block 1 57 rotates to the position aligned with the sliding groove 513. At this time, the connecting block 56, rectangular block 512, limiting block 1 57, threaded rod 1 515, and insert rod 510 can be pulled out together from the sliding cavity 1 59 in the rod body. After that, baffle 1 51 and shaft can be removed. Remove body 52 so that the pin assembly 5 can be disassembled without tools, making it easy to replace damaged parts. During assembly, insert connecting block 56, rectangular block 512, limit block 57, threaded rod 515, and insert rod 510 along the slide cavity 59. Rotate baffle 51 so that limit block 57 rotates to the position corresponding to slot 58. Then, rotate plate 517, threaded rod 515, rectangular block 512, and connecting block 56 in the opposite direction, causing limit block 57 to engage inside slot 58. The spring pushes movable plate 55 against the side of connecting block 56, so that limit block 57 is always engaged inside the slot, making the installation more stable.

[0049] Of course, the above description is not a limitation of the present invention, and the present invention is not limited to the examples given above. Any changes, modifications, additions or substitutions made by those skilled in the art within the scope of the present invention are also within the protection scope of the present invention.

Claims

1. A drill rod lifting device for a geological drilling core drilling rig, characterized in that: The device includes a lifting device body (1) and a drill rod body (2). The lifting device body (1) includes a top plate (8) and a support frame (3). The support frame (3) is U-shaped and has four sets of symmetrical fixed connections around the bottom of the top plate (8). The drill rod body (2) is located in the middle of the four sets of support frames (3). Each support frame (3) is equipped with a clamping component one (4) for clamping the drill rod body (2). A clamping component two (6) is located below the clamping component one (4). A driving component (7) is located in the middle of the top plate (8). The driving component (7) drives the clamping component one (4) and the clamping component two (6) to move and clamp onto the side wall of the drill rod body (2). The clamping assembly 1 (4) includes a movable rod 1 (41), a diagonal rod 1 (44), a connecting rod 1 (45), a diagonal rod 2 (47), a connecting rod 2 (46), and a pin assembly (5). The diagonal rod 1 (44) and diagonal rod 2 (47) are symmetrically arranged on the upper and lower sides of the support frame (3). The adjacent ends of the diagonal rod 1 (44) and diagonal rod 2 (47) are rotatably mounted in the middle position of the support frame (3) through the pin assembly (5). The end of the movable rod 1 (41) is fixedly connected to a clamping block 1 (42). The clamping block 1 (42) fits against the side wall of the drill rod body (2). A through long slot 1 (43) is opened in the middle of the movable rod 1 (41). The diagonal rod 1 (45) and the diagonal rod 2 (46) are connected to the support frame (3). 4) The ends adjacent to the second diagonal rod (47) are respectively clamped on both sides of the first movable rod (41). The pin assembly (5) on the support frame (3) passes through the first long slot (43). The first connecting rod (45) and the second connecting rod (46) are respectively symmetrically arranged in the middle position of the first diagonal rod (44) and the second diagonal rod (47). The adjacent ends of the first connecting rod (45) and the second connecting rod (46) are rotatably connected to the end of the first movable rod (41) away from the first clamping block (42) through the pin assembly (5). The opposite ends of the first connecting rod (45) and the second connecting rod (46) are respectively rotatably connected to the middle position of the first diagonal rod (44) and the second diagonal rod (47) through the pin assembly (5). The clamping assembly 2 (6) includes a movable rod 2 (61). A through long groove 2 (64) is provided in the middle of the movable rod 2 (61). A limiting rod 1 (62) and a limiting rod 2 (63) are arranged side by side in the middle of the long groove 2 (64). The limiting rod 1 (62) and the limiting rod 2 (63) both pass through the long groove 2 (64) and their two ends are respectively fixedly connected to the inner wall of the support frame (3). A sliding cavity 3 (68) is provided inside the movable rod 2 (61). The end of the sliding cavity 3 (68) near the drill rod body (2) is open. A spring 3 (69) is installed inside the sliding cavity 3 (68). The two ends of the spring three (69) are fixedly connected to the inner wall of the sliding cavity three (68) and the limiting rod one (62) respectively. A sliding rod (67) is slidably installed in the open end of the sliding cavity three (68). A clamping block two (66) is fixedly connected to the end of the sliding rod (67). The clamping block two (66) is in contact with the side wall of the drill rod body (2). A spring two (65) is provided between the clamping block two (66) and the movable rod two (61). The spring two (65) is sleeved on the sliding rod (67). The two ends of the spring two (65) are fixedly connected to the side wall of the movable rod two (61) and the clamping block two (66) respectively. The drive assembly (7) includes a motor (71) fixedly mounted in the middle of the upper surface of the top plate (8). A rotating shaft (72) is coaxially fixedly connected to the output end of the motor (71). The rotating shaft (72) extends vertically downward to the bottom of the top plate (8). A gear disk (73) is fixedly connected to the end of the rotating shaft (72). Helical gears (74) are symmetrically arranged around the gear disk (73). The helical gears (74) mesh with the gear disk (73). A threaded rod (75) is fixedly connected to the middle of the side of the helical gear (74). A drive rod (77) is arranged on the side of the helical gear (74) away from the gear disk (73). The drive rod (77) is close to the helical gear (74). The end of the device has a threaded hole (78) inside. The threaded rod (75) and the threaded hole (78) are threaded together. The helical gear (74) has a support seat (76) on its side. The threaded rod (75) is rotatably installed on the bottom of the support seat (76). The top of the support seat (76) is fixedly connected to the lower end face of the top plate (8). The top of the helical rod (44) has a cross groove (48). The end of the drive rod (77) away from the helical gear (74) is movably inserted into the middle of the cross groove (48). The two sides of the end of the drive rod (77) are respectively fixedly connected to the limit block (710). The limit block (710) is movably inserted into the cross groove (48). The drill rod body (2) is provided with a slot (21), and the slot (21) and the clamping block (42) are adapted to each other. The bottom of the support frame (3) is fixedly connected to a base plate (10), and a through hole (11) is provided in the middle of the base plate (10). The through hole (11) is adapted to the drill rod body (2), and the bottom of the through hole (11) is chamfered.

2. The drill rod lifting device for a geological drilling core drilling rig according to claim 1, characterized in that: The pin assembly (5) includes a baffle (51), a shaft (52) is fixedly connected to the side of the baffle (51), a cylindrical movable cavity (53) is opened in the middle of the end of the shaft (52) near the baffle (51), a movable plate (55) is slidably installed in the movable cavity (53), a spring (54) is installed in the movable cavity (53) to reset the movable plate (55), and a cylindrical sliding cavity (59) is opened in the middle of the end of the shaft (52) away from the baffle (51). The inner diameter of cavity one (59) is smaller than the inner diameter of movable cavity (53). A plug rod (510) is slidably installed in the middle of the sliding cavity one (59). The plug rod (510) is adapted to the sliding cavity one (59). A baffle two (516) is fixedly connected to the end of the plug rod (510). The baffle two (516) and the end of the shaft (52) away from the baffle one (51) are in contact. A connecting block (56) is provided at the end of the plug rod (510) away from the baffle two (516). Limiting blocks are symmetrically fixedly connected to the side of the connecting block (56). In section 1 (57), elongated grooves (513) are symmetrically provided on both sides of the inner wall of the first sliding cavity (59). The adjacent side walls of the first sliding cavity (59) and the movable cavity (53) are symmetrically provided with slots (58) that can engage with the limiting block (57). The slots (58) on both sides and the sliding grooves (513) on both sides are perpendicular to each other. A second sliding cavity (511) is provided in the middle of the end of the insertion rod (510) near the connecting block (56). A rectangular block (512) is slidably installed inside the second sliding cavity (511). One end of the rectangular block (512) is fixedly connected to the connecting block (56). The other end of the rectangular block (512) has a threaded hole (514) in the middle. A threaded rod (515) is threadedly connected to the middle of the threaded hole (514). The end of the threaded rod (515) away from the rectangular block (512) passes through the through hole between the insert rod (510) and the baffle (516). A rotating plate (517) is fixedly connected to the end of the threaded rod (515). The threaded rod and the baffle (516) are rotatably connected.

3. The drill rod lifting device for a geological drilling core drilling rig according to claim 2, characterized in that: Limiting strips (79) are fixedly connected to the two side walls of the drive rod (77), and a limiting groove (31) is opened on the upper inner wall of the support frame (3). The limiting strips (79) are slidably arranged in the limiting groove (31).

4. The drill rod lifting device for a geological drilling core drilling rig according to claim 2, characterized in that: The top of the top plate (8) is fixedly connected to a lifting ring (9).

5. A method for lifting a drill rod lifter for a geological core drilling rig, comprising the drill rod lifter for a geological core drilling rig as described in claim 2, characterized in that: Includes the following steps: S1. Start the motor (71). The motor (71) drives the rotating shaft (72) and gear disk (73) to rotate, which in turn drives the helical gear (74) and threaded rod two (75) to rotate, pushing the drive rod (77) to move away from the center. The end of the drive rod (77) slides inside the cross groove (48), causing the helical rod one (44) to rotate outward, simultaneously driving the connecting rod one (45) and connecting rod two (46) to fold and retract towards the middle, driving the movable rod one (41) and clamping block one (42) to move away from the center. Then, the drill rod body (2) is moved from the middle of the base plate (10). Insert the through hole (11) until it is adjacent to the gear disk (73), control the motor (71) to move in the opposite direction, drive the rotating shaft (72), gear disk (73), helical gear (74), threaded rod two (75), drive rod (77), helical rod one (44), connecting rod one (45) and connecting rod two (46) to move in the opposite direction, thereby pushing the movable rod one (41) and clamping block one (42) to move in the opposite direction, so that clamping block one (42) is clamped in the slot one (21) of the drill rod body (2), and simultaneously limiting and fixing the drill rod body (2) up and down and left and right; S2. When the first inclined rod (44) rotates outward, the second inclined rod (47) rotates outward synchronously through the first connecting rod (45) and the second connecting rod (46). At this time, under the action of the third spring (69), the second movable rod (61) and the second clamping block (66) are pushed outward to facilitate the insertion of the drill rod body (2). When the motor (71) drives the related structure to move in the opposite direction, the second inclined rod (47) squeezes the second movable rod (61) and the second clamping block (66). Through the cooperation of the first limiting rod (62), the second limiting rod (63) and the second long groove (64), the second movable rod (61) and the second clamping block (66) move horizontally and are clamped on the side of the drill rod body (2). By setting the sliding rod (67) and the second spring (65), a buffering effect is achieved, and the clamping effect is improved. S3. When the device parts are damaged and need to be replaced or repaired, first press down on baffle one (51) and baffle two (516), then rotate the rotating plate (517). The rotating plate (517) drives the threaded rod one (515) to rotate, pushing the rectangular block (512) to move inward along the sliding cavity two (511) until the connecting block (56) drives the limiting block one (57) to disengage from the slot two (58). Then keep baffle one (51) still, rotate baffle two (516) and rotating plate (517) so that the limiting block one (57) rotates to the position aligned with the sliding groove (513). At this time, the connecting block (56), rectangular block (512), limiting block one (57), threaded rod one (515) and insert rod (510) can be pulled out together from the sliding cavity one (59) in the rod body. Then baffle one (51) can be removed. Remove the shaft (52), so that the pin assembly (5) can be disassembled without the use of tools, making it easy to replace the damaged parts. During assembly, insert the connecting block (56), rectangular block (512), limit block one (57), threaded rod one (515) and insert rod (510) along the sliding cavity one (59), rotate the baffle one (51) so that the limit block one (57) rotates to the position corresponding to the slot two (58), and then make the rotating plate (517), threaded rod one (515), rectangular block (512) and connecting block (56) move in opposite directions, so that the limit block one (57) is engaged in the slot two (58), and the spring pushes the movable plate (55) against the side of the connecting block (56), so that the limit block one (57) is always engaged in the slot, making the installation more stable.

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