A placer exploration drill

Abstract

The present application relates to placer exploration technical field, disclose a kind of placer exploration drilling machine, including track chassis, pedestal, drive arm, first cylinder, impact rotary power head and coring tube assembly, drive arm includes rotating frame, swing frame and truss, rotating frame is rotatably connected with pedestal, swing frame is rotatably connected with rotating frame, truss is slidably connected with swing frame, first cylinder is hinged with pedestal, the piston rod of first cylinder is hinged with rotating frame, impact rotary power head is connected on truss, coring tube assembly is connected with impact rotary power head, coring tube assembly includes outer tube and inner tube, outer tube is arranged outside inner tube, outer tube is equipped with first drill bit, inner tube is equipped with second drill bit, the side wall of second drill bit is equipped with connecting hole, connecting hole is equipped with plugging element, the end of plugging element is inserted into second drill bit and forms plugging net by connecting hole.The present application can effectively improve the success rate, accuracy and sampling efficiency of placer sampling in complex strata such as marsh, shrub etc.

Description

Technical Field

[0001] This invention relates to the field of placer gold exploration technology, specifically to a placer gold exploration drilling rig. Background Technology

[0002] As an important mineral resource, placer gold exploration and sampling are crucial for resource assessment and mining. Exploration operations for placer gold deposits are mostly located in complex terrain such as riverbanks, terraces, and piedmont colluvial plains. These areas not only have rugged surfaces with slopes and gullies, but also often unstable geological conditions, posing a risk of landslides. These objective conditions present significant challenges to the mobility, stability, and operational efficiency of exploration equipment.

[0003] Traditional exploration drilling rigs face two major challenges upon arriving at such work sites: First, terrain adaptability and mobility. Conventional equipment needs to be towed or transported to the work site by other vehicles, making it extremely difficult to navigate harsh environments such as slopes, swamps, and thickets, and thus unable to reach the optimal exploration point on its own. After the equipment is in place, large-scale ground leveling is often required to create a stable working surface, a process that is both time-consuming and labor-intensive, and also damages the original environment. Second, operational stability and safety are paramount. To ensure stability during drilling and resist drilling reaction forces, preventing equipment displacement or overturning due to vibration, a crucial step in traditional operations is the pre-construction of a robust concrete exploration foundation or the installation of complex steel exploration supports. This process is time-consuming, costly in terms of materials, and significantly increases the amount of preparatory work. More importantly, on slopes with inherent landslide risks or soft soil, the stability of such temporary foundations is difficult to guarantee, creating potential safety hazards.

[0004] Therefore, there is a lack of existing exploration solutions that can integrate rapid maneuverability, autonomous positioning, and built-in stabilization functions.

[0005] In view of this, the applicant conducted in-depth research on the above-mentioned issues, which led to this case. Summary of the Invention

[0006] To address the shortcomings of existing technologies, this invention provides a placer gold exploration drilling rig that can effectively solve the aforementioned technical problems.

[0007] To achieve the above objectives, the present invention provides the following technical solution:

[0008] A placer gold exploration drilling rig includes a tracked chassis, a base, a drive arm, a first cylinder, an impact rotary power head, and a core sampling tube assembly. The drive arm includes a rotating frame, a swing frame, and a truss. The lower end of the rotating frame is rotatably connected to the base, the swing frame is rotatably connected to the rotating frame, and the truss is slidably connected to the swing frame. The lower end of the first cylinder is hinged to the base, and the piston rod of the first cylinder is hinged to the rotating frame. The impact rotary power head is slidably connected to the truss. The core sampling tube assembly is connected to the impact rotary power head. The core sampling tube assembly includes an outer tube and an inner tube, with the outer tube sleeved over the inner tube. A first drill bit is provided at the lower end of the outer tube, and a second drill bit is provided at the lower end of the inner tube. The side wall of the second drill bit has several connecting holes, and a sealing element is provided on the connecting holes. The end of the sealing element passes through the connecting hole and extends into the second drill bit to form a sealing mesh.

[0009] Furthermore, the sealing element is a U-shaped rope, and the outer side wall of the second drill bit is provided with a clearance hole communicating with the connecting hole. The U-shaped rope includes a bent part and a sealing end. The sealing end is located on both sides of the bent part. The sealing ends on both sides pass through the connecting hole and extend into the interior of the second drill bit. Several sealing ends are interwoven inside the second drill bit to form a sealing net.

[0010] Furthermore, the blocking end is inclined upwards.

[0011] Furthermore, the rotating frame is also provided with a second cylinder, the lower end of which is hinged to the rotating frame, and the piston rod of the second cylinder is hinged to the swing frame.

[0012] Furthermore, the first cylinder body is symmetrically arranged, a first connecting seat is provided on the base, a second connecting seat is provided at the upper end of the rotating frame, the front end of the first connecting seat is hinged to the lower end of the rotating frame, the lower end of the first cylinder body is hinged to the rear end of the first connecting seat, and the piston rod of the first cylinder body is hinged to the second connecting seat.

[0013] Furthermore, the rotating frame has a rotating hole in the middle, and the swing frame has a connecting shaft in the middle, which is rotatably connected to the rotating hole.

[0014] Furthermore, the lower end of the rotating frame is provided with a third connecting seat, the lower side wall of the swing frame is provided with an outwardly extending connecting arm, the lower end of the second cylinder is hinged to the third connecting seat, and the piston rod of the second cylinder is hinged to the connecting arm.

[0015] Furthermore, the upper end of the rotating frame is provided with a first arc-shaped guide plate, the upper end of the swing frame is provided with a first guide block, the first guide block is provided with a first guide groove, the upper end of the first arc-shaped guide plate is slidably engaged with the first guide groove, the lower end of the swing frame is provided with a second arc-shaped guide plate, the lower end of the rotating frame is provided with a second guide block, the second guide block is provided with a second guide groove, and the lower end of the second arc-shaped guide plate is slidably engaged with the second guide groove.

[0016] Furthermore, a third cylinder is provided on the swing frame, the lower end of the third cylinder is hinged to the swing frame, and the piston rod of the third cylinder is hinged to the truss.

[0017] Furthermore, the side wall of the truss is provided with an outwardly protruding guide plate, and the side wall of the swing frame is provided with a guide groove, with the guide plate and the guide groove being slidably connected.

[0018] This invention provides a placer gold exploration drilling rig. It has the following beneficial effects:

[0019] 1. This invention uses a first cylinder to drive a rotating frame, enabling pitch angle adjustment; a second cylinder to drive a swing frame, enabling left and right swinging on the horizontal plane; and a third cylinder to drive a truss, enabling vertical height adjustment. These three adjustable dimensions ensure that, regardless of the terrain, the impact rotary power head and core tube assembly can be quickly and accurately adjusted to the optimal drilling posture, perfectly perpendicular to the ground.

[0020] 2. The present invention adopts a sliding fit structure such as the first arc-shaped guide plate and the first guide groove, and the second arc-shaped guide plate and the second guide groove. During the adjustment process, it provides additional support and guidance for the drive arm, which greatly enhances the structural rigidity and stability of the entire drive arm system. It ensures that the set angle will not deviate during the powerful drilling process, thereby ensuring the authenticity and accuracy of the sampling.

[0021] 3. This invention forms a sealing mesh at the lower end of the inner tube using a sealing component. This mesh can trap and block heavy mineral particles such as placer gold, preventing them from falling off the bottom of the drill bit or being washed away with water during drilling. This greatly improves the success rate and efficiency of sampling.

[0022] 4. During operation, the outer tube carrying the first drill bit drills first, forming a stable pilot hole that remains inside the hole. This effectively creates a strong barrier for the inner tube used for subsequent core extraction, supporting the borehole wall and physically isolating the loose placer gold layer from the inner tube working area, fundamentally preventing accidents caused by borehole wall collapse that could bury or damage the inner tube and rock core.

[0023] 5. This invention greatly expands the operating range of drilling rigs. Whether on hillsides, riverbanks, or other irregular terrains, drilling rigs can start working directly without large-scale ground leveling, reducing environmental damage and saving time and costs in preliminary preparation. Attached Figure Description

[0024] Figure 1 This is a perspective view of the external structure of the present invention;

[0025] Figure 2 This is a cross-sectional structural diagram of the core sampling tube assembly;

[0026] Figure 3This is a top view of the cross-sectional structure of the core tube assembly;

[0027] Figure 4 This is a structural diagram of the sealing component during drilling;

[0028] Figure 5 This is another perspective view of the external structure of the present invention;

[0029] Figure 6 This is a perspective view of the rear structure of the present invention;

[0030] Figure 7 This is a side view of the cross-sectional structure of the present invention;

[0031] Figure 8 This is a three-dimensional view of the external structure of the present invention during reset;

[0032] Figure 9 for Figure 3 A magnified view of a portion of region A in the middle;

[0033] Figure 10 for Figure 6 A magnified view of a portion of region B in the middle;

[0034] Figure 11 for Figure 6 A magnified view of a portion of region C in the middle;

[0035] Figure 12 This is a schematic diagram of the swing frame during its swing.

[0036] The components include: base 1, track drive mechanism 11, first connecting seat 12, track chassis 2, first cylinder 21, second cylinder 22, third cylinder 23, impact rotating power head 3, rotating frame 41, second connecting seat 411, rotating hole 412, third connecting seat 413, first arc-shaped guide plate 414, second guide block 415, swing frame 42, adapter shaft 421, connecting arm 422, first guide block 423, second arc-shaped guide plate 424, guide groove 425, truss 43, guide plate 431, outer tube 51, first internal thread section 511, third external thread section 512, inner tube 52, second internal thread section 521, fourth external thread section 522, first drill bit 53, first external thread section 531, second drill bit 54, connecting hole 541, second external thread section 542, clearance hole 543, sealing component 55, and sealing net 56. Detailed Implementation

[0037] The technical 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 are within the scope of protection of the present invention.

[0038] Please see the appendix Figure 1 -Appendix Figure 12 This invention provides a placer gold exploration drilling rig, including a tracked chassis 2, a base 1, a drive arm, a first cylinder 21, an impact rotary power head 3, and a core tube assembly. The base 1 is mounted on the tracked chassis 2, which features widened track plates, making it more suitable for traversing swampy terrain and reducing the risk of getting stuck. The tracked chassis 2 also has a raised bottom, increasing its mobility. It is designed with an adjustable-speed track drive mechanism 11, enabling long-distance autonomous movement within the mine. Furthermore, the drive wheels and guide wheels on the tracked chassis 2 are angled upwards, facilitating movement through thickets. This design allows the rig to move smoothly across various terrains. The drive arm includes a rotating frame 41, a swing frame 42, and a truss 43. The lower end of the rotating frame 41 is rotatably connected to the base 1, the swing frame 42 is rotatably connected to the rotating frame 41, and the truss 43 is slidably connected to the swing frame 42. The lower end of the first cylinder 21 is hinged to the base 1, and the piston rod of the first cylinder 21 is hinged to the rotating frame 41. The impact rotating power head 3 is slidably connected to the truss 43. Specifically, the impact rotating power head 3 can be connected to the sprocket through an existing sprocket drive mechanism. The motor drives the sprocket to move, thereby driving the impact rotating power head 3 to move up and down along the truss 43. The core sampling tube assembly is connected to the impact rotary power head 3. The core sampling tube assembly includes an outer tube 51 and an inner tube 52. The outer tube 51 is sleeved outside the inner tube 52. A first drill bit 53 is provided at the lower end of the outer tube 51, and a second drill bit 54 is provided at the lower end of the inner tube 52. The side wall of the second drill bit 54 has several connecting holes 541. A sealing element 55 is provided on the connecting hole 541. The end of the sealing element 55 passes through the connecting hole 541 and extends into the second drill bit 54 to form a sealing mesh 56. With the above structure, when the second drill bit 54 drills into the sampling hole, the end of the sealing element 55 is subjected to greater pressure, causing the end of the sealing element 55 to bend upward, ensuring that the rock core can smoothly enter the inner tube 52 when the second drill bit 54 is drilling. When the second drill bit 54 is lifted, the pressure on the sealing component 55 is relatively small, so it can form a sealing net 56 to seal the lower opening of the inner tube 52, preventing the rock core from falling from the bottom during the lifting process, which greatly improves the sampling success rate and sampling efficiency.

[0039] In this embodiment, the sealing element 55 is a U-shaped rope. The outer wall of the second drill bit 54 has a clearance hole 543 communicating with the connecting hole 541. The U-shaped rope is a steel strand structure consisting of multiple strands of thin steel rope wound together. The U-shaped rope includes a bent portion and sealing ends. The sealing ends are located on both sides of the bent portion, passing through the connecting hole 541 and extending into the interior of the second drill bit 54. Several sealing ends interweave within the second drill bit 54 to form a sealing mesh 56. Using this structure, the two sealing ends of the U-shaped rope can be directly inserted into the connecting hole 541 during use, making the installation and removal of the sealing element 55 more convenient. Furthermore, the bent portion can be embedded inside the clearance hole 543, which reduces wear on the bent portion during operation by the second drill bit 54, thereby preventing damage to the U-shaped rope and further extending its service life.

[0040] More specifically, the sealing end is tilted upwards. This allows the sealing end to tilt upwards, facilitating the entry of the rock core into the inner tube 52 during drilling. Conversely, when the inner tube 52 is lifted, the sealing end is prevented from bending downwards, ensuring the rock core is sealed and preventing it from scattering. Furthermore, the sealing component 55 can also be a rope-like structure with multiple sealing ends, rather than being limited to a U-shaped rope structure with only two sealing ends.

[0041] In this embodiment, to facilitate the installation of the inner tube 52 and the outer tube 51, the lower end of the outer tube 51 is provided with a first internal thread section 511, and the upper end of the first drill bit 53 is provided with a first external thread section 531. The first internal thread section 511 and the first external thread section 531 are threaded together. The lower end of the inner tube 52 is provided with a second internal thread section 521, and the upper end of the second drill bit 54 is provided with a second external thread section 542. The second internal thread section 521 and the second external thread section 542 are threaded together. This makes the disassembly and assembly of the outer tube 51 and the inner tube 52 with the drill bit faster and more convenient. The upper end of the outer tube 51 is provided with a third external thread section 512, and the upper end of the inner tube 52 is provided with a fourth external thread section 522. The third external thread section 512 can be threadedly connected to the first internal thread section 511, and the outer tube 51 can be connected to the output shaft of the impact rotary power head 3 through the third external thread section 512 via an adapter. The fourth external thread section 522 can be threadedly connected to the second internal thread section 521, and the inner tube 52 can be connected to the output shaft of the impact rotary power head 3 via an adapter through the fourth external thread section 522. In this way, when sampling deep rock or soil layers, multiple inner tubes 52 and outer tubes 51 can be connected end to end, thereby increasing the drilling depth and making the connection more convenient and secure.

[0042] In this embodiment, the rotating frame is further provided with a second cylinder 22. The lower end of the second cylinder 22 is hinged to the rotating frame 41, and the piston rod of the second cylinder 22 is hinged to the swing frame 42. The second cylinder 22 can drive the swing frame 42 to swing left and right relative to the rotating frame 41, thereby further improving the flexibility of drilling angle adjustment. More specifically, the first cylinder 21 is symmetrically arranged, the base 1 is provided with a first connecting seat 12, the upper end of the rotating frame 41 is provided with a second connecting seat 411, the front end of the first connecting seat 12 is hinged to the lower end of the rotating frame 41, the lower end of the first cylinder 21 is hinged to the rear end of the first connecting seat 12, and the piston rod of the first cylinder 21 is hinged to the second connecting seat 411. The rotating frame 41 is provided with a rotating hole 412 in the middle, and the swing frame 42 is provided with a transition shaft 421 in the middle, and the transition shaft 421 is rotatably connected to the rotating hole 412. The lower end of the rotating frame 41 is provided with a third connecting seat 413, and the lower side wall of the swing frame 42 is provided with an outwardly extending connecting arm 422. The direction of the connecting arm 422 is opposite to that of the third connecting seat 413. The lower end of the second cylinder 22 is hinged to the third connecting seat 413, and the piston rod of the second cylinder 22 is hinged to the connecting arm 422. This allows the second cylinder 22 to be installed on the swing frame 42 in an inclined state. The second cylinder 22 only needs a small driving stroke to drive the swing frame 42 to swing, making the swing frame 42 swing more smoothly. With the above structure, the connection between the first cylinder 21 and the second cylinder 22 is more secure, and disassembly and assembly are more convenient.

[0043] In this embodiment, the upper end of the rotating frame 41 is provided with a first arc-shaped guide plate 414, the upper end of the swing frame 42 is provided with a first guide block 423, the first guide block 423 is provided with a first guide groove, and the upper end of the first arc-shaped guide plate 414 is slidably engaged with the first guide groove. The lower end of the swing frame 42 is provided with a second arc-shaped guide plate 424, the lower end of the rotating frame 41 is provided with a second guide block 415, the second guide block 415 is provided with a second guide groove, and the lower end of the second arc-shaped guide plate 424 is slidably engaged with the second guide groove. With the above structure, the first arc-shaped guide plate 414 and the second arc-shaped guide plate 424 respectively limit the swing within the first guide groove and the second guide groove, thereby further restricting the displacement of the swing frame 42 in the front-back direction, making the swing frame 42 more stable when swinging left and right.

[0044] In this embodiment, a third cylinder 23 is provided on the swing frame 42. The lower end of the third cylinder 23 is hinged to the swing frame 42, and the piston rod of the third cylinder 23 is hinged to the truss 43. The third cylinder 23 can drive the truss 43 to move up and down relative to the swing frame 42, thereby adjusting the height of the truss 43 during operation. The side wall of the truss 43 is provided with an outwardly protruding guide plate 431, and the side wall of the swing frame 42 is provided with a guide groove 425. The guide plate 431 and the guide groove 425 are slidably connected, making the truss 43 more stable during movement.

[0045] The working principle of this invention is as follows: Before drilling, the base 1 moves to a designated position via a track mechanism. The drilling angle is adjusted by the first cylinder 21 and the second rod to ensure that the core tube assembly is perpendicular to the ground. Then, the upper end of the outer tube 51 is connected to the impact rotating power head 3 via an adapter, and the outer tube 51 is driven into the soil. Afterward, the outer tube 51 is separated from the impact rotating power head 3, and the upper end of the inner tube 52 is connected to the impact rotating power head 3 via an adapter, and the inner tube 52 is driven into the soil inside the outer tube 51. During this process, the sealing end of the sealing member 55 bends upward to ensure that the rock core smoothly enters the inner tube 52. Then, the inner tube 52 is lifted out, carrying the rock core with it. The sealing member 55 seals the lower opening of the inner tube 52 to prevent loose rock core from scattering.

[0046] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A placer exploration drill rig characterized by, The application relates to a core drilling machine, which comprises a track chassis, a base, a driving arm, a first cylinder, an impact rotary power head and a core tube assembly, the base is arranged on the track chassis, the driving arm comprises a rotating frame, a swing frame and a truss, the lower end of the rotating frame is rotationally connected with the base, the swing frame is rotationally connected with the rotating frame, the truss is slidingly connected with the swing frame, the lower end of the first cylinder is hingedly connected with the base, the piston rod of the first cylinder is hingedly connected with the rotating frame, the impact rotary power head is slidingly connected on the truss, the core tube assembly is connected with the impact rotary power head, the core tube assembly comprises an outer tube and an inner tube, the outer tube is sleeved outside the inner tube, the lower end of the outer tube is provided with a first drill bit, the lower end of the inner tube is provided with a second drill bit, the side wall of the second drill bit is provided with a plurality of connecting holes, the connecting holes are provided with blocking pieces, the end portions of the blocking pieces pass through the connecting holes and extend into the second drill bit to form a blocking net, the rotating frame is further provided with a second cylinder, the lower end of the second cylinder is hingedly connected with the rotating frame, and the piston rod of the second cylinder is hingedly connected with the swing frame, the first cylinder is symmetrically arranged, the base is provided with a first connecting seat, the upper end of the rotating frame is provided with a second connecting seat, the front end of the first connecting seat is hingedly connected with the lower end of the rotating frame, the lower end of the first cylinder is hingedly connected with the rear end of the first connecting seat, the piston rod of the first cylinder is hingedly connected with the second connecting seat, the middle portion of the rotating frame is provided with a rotating hole, the middle portion of the swing frame is provided with a transfer shaft, the transfer shaft is rotationally connected with the rotating hole, the lower end of the rotating frame is provided with a third connecting seat, the side wall of the lower end of the swing frame is provided with an outwardly extending connecting arm, the lower end of the second cylinder is hingedly connected with the third connecting seat, and the piston rod of the second cylinder is hingedly connected with the connecting arm, the upper end of the rotating frame is provided with a first arc-shaped guide plate, the upper end of the swing frame is provided with a first guide block, the first guide block is provided with a first guide groove, the upper end of the first arc-shaped guide plate is slidingly matched with the first guide groove, the lower end of the swing frame is provided with a second arc-shaped guide plate, the lower end of the rotating frame is provided with a second guide block, the second guide block is provided with a second guide groove, and the lower end of the second arc-shaped guide plate is slidingly matched with the second guide groove.

2. A placer drill as claimed in claim 1, characterised in that, The blocking piece is a U-shaped rope, the outer side wall of the second drill bit is provided with a clearance hole which is communicated with the connecting hole, the U-shaped rope comprises a bending portion and blocking ends, the blocking ends are arranged on both sides of the bending portion, the blocking ends on both sides pass through the connecting holes and extend into the second drill bit, and the blocking ends are interwoven in the second drill bit to form the blocking net.

3. A placer drill as claimed in claim 2, characterised in that, The blocking ends are upwardly inclined.

4. A placer drill as claimed in claim 1, characterized in that A third cylinder is arranged on the swing frame, the lower end of the third cylinder is hingedly connected with the swing frame, and the piston rod of the third cylinder is hingedly connected with the truss.

5. A placer drill as claimed in claim 4, wherein, The side wall of the truss is provided with an outwardly protruding guide sliding plate, the side wall of the swing frame is provided with a guide sliding groove, and the guide sliding plate is slidingly connected with the guide sliding groove.

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