Reaming device for geological exploration

Abstract

The invention discloses a hole expanding device for geological exploration, which comprises a rack, an assembled drill rod and a hole expanding assembly, and the rack further comprises a lifter, a base, a driving device and a driving motor A; the assembled drill rod is formed by assembling a plurality of same unit drill rods up and down according to the required drilling depth, and a rotating shaft capable of controlling the reaming assembly to be opened and closed is rotationally mounted in the center of the assembled drill rod; the reaming assembly further comprises a drill rod base, a drill bit, a reaming structure, a discharging channel and a cleaning channel. The device has the functions that the device is provided with the assembled drill rod, different drilling depths can be met, assembly and disassembly are convenient and fast, most of a reaming structure of the device is hidden in the drill rod base, soil and rock generated in the drilling and reaming process can be discharged through the discharging channel, the influence of the soil and rock falling from a hole is extremely small, and meanwhile the drilling efficiency is greatly improved. In addition, the device can wash mudstone through the cleaning channel on the drill rod seat, the service life of the device can be prolonged, and the replacement cost is reduced.

Description

Technical Field

[0001] The patent of this invention belongs to the field of geological exploration technology, and specifically relates to a hole expanding device for geological exploration. Background Art

[0002] Drilling is the most widely used exploration method in engineering geological survey. It refers to an exploration method that uses a drilling rig to drill holes in the strata to identify and divide the subsurface strata and take samples along the depth of the hole. It can obtain deep geological data.

[0003] Drilling sampling generally involves drilling first, then reaming, and finally sampling. After sampling, the geological samples obtained are analyzed to obtain relevant geological data such as rocks, minerals, and groundwater at the corresponding depth. The existing reaming device drives the reaming head to rotate through a driving device to achieve reaming operations at the original hole. Since the reaming diameters at different positions may be different, and a reaming head can often only drill holes of one diameter, exploration workers need to frequently lift the drill rod, stop the machine, replace the appropriate reaming head, and then lower it into the hole. This not only increases the labor intensity of the workers, but also reduces the efficiency of the exploration work.

[0004] In order to solve the above problems, the inventors have found that the prior art, such as the Chinese patent (CN118273658A), discloses a geological exploration reaming device, including: a support frame, both sides of the support frame are fixedly connected to the ground, and a lifting device is arranged on the support frame; a drilling device, the drilling device includes a drill rod and a drive motor, the drive motor is arranged on the lifting device, the drill rod is arranged vertically, the top of the drill rod is fixedly connected to the output shaft of the drive motor and the drive motor is used to drive the drill rod to rotate, and a drill bit for propulsion is arranged at the bottom of the drill rod; a reaming device, the reaming device is arranged on the upper part of the drill bit, the reaming device is connected to the support frame through a connecting piece, the reaming device is sleeve-connected to the drill rod, and a locking device is arranged between the reaming device and the drill rod, and the reaming device includes a plurality of reaming disks, the diameters of the plurality of reaming disks are different, and the plurality of reaming disks each include a connecting column and a plurality of reaming arms radially and evenly distributed around the connecting column. Although the device can adjust the reaming diameter, it has the following defects: 1. The length of the drill rod in the device is limited, and each drill rod can only be used for underground drilling at a corresponding depth, and loading and unloading is cumbersome; 2. Although the hole expansion structure of the device can adjust the hole expansion range, the connection structure between the hole expansion plate and the drill rod is exposed, so it is easy to be affected by the soil and rocks falling in the hole during the drilling and hole expansion process; 3. The device cannot discharge soil and rocks during the drilling and hole expansion process, which will greatly affect the drilling and hole expansion efficiency. At the same time, its hole expansion mechanism is easily blocked by soil and rocks and is difficult to clean quickly.

[0005] Therefore, this paper proposes a hole expanding device for geological exploration. Summary of the invention

[0006] In order to solve the above technical problems, the present invention proposes a hole expanding device for geological exploration which can quickly change the drill rod length, adjust the hole expanding range, discharge drilling mud and stone, and prevent the hole expanding mechanism from being blocked.

[0007] In order to achieve the above technical effects, the present invention is implemented through the following technical solutions: a reaming device for geological exploration, including a frame, an assembled drill rod, and a reaming assembly. The assembled drill rod is installed on the central axis of the frame, and the reaming assembly is installed at the lower end of the assembled drill rod. The frame also includes a lift, a base, a drive device, and a drive motor A. The left side of the base is installed with a lift that can be raised and lowered by a controller, and the right side above the base is provided with a drive device that can drive the assembled drill rod to rotate. The drive motor A is installed above the base and can be connected to the central axis of the assembled drill rod. The assembled drill rod is composed of a number of identical unit drill rods assembled up and down according to the required drilling depth, and the center of the assembled drill rod is rotatably installed with a rotating shaft that can control the opening and closing of the reaming assembly; the reaming assembly also includes a drill rod seat, a drill bit, a reaming structure, a discharge channel, and a cleaning channel. The drill bit is arranged at the lower end of the drill rod seat, and a cross-shaped inner cavity is arranged on the drill rod seat above the drill bit, and the reaming structure with adjustable reaming diameter is installed in the cross-shaped inner cavity. The drill rod seat is also provided with a discharge channel connected to the drill rod and a cleaning channel pointing to the reaming structure.

[0008] Preferably, the base further comprises a locking rod sleeve and a base platform, the locking rod sleeve is rotatably mounted on the central axis of the base, and the base platform is arranged on the upper surface of the base.

[0009] Preferably, the driving device also includes a driving motor B, a pinion and a large gear. The driving motor B is installed on the base platform. The driving end of the driving motor B is connected to a pinion, and the pinion is meshed with the large gear arranged on the outside of the locking rod sleeve.

[0010] Preferably, a rotating shaft is arranged at the center of the unit drill rod, a discharge channel is arranged in the unit drill rod around the rotating shaft, and a card slot and a limit card are respectively arranged at the upper and lower ends of the rotating shaft.

[0011] Preferably, the reaming structure also includes a screw, a cross-shaped screw sleeve, a connecting rod, and a reaming claw. The screw is arranged at the lower end of the rotating shaft, the cross-shaped screw sleeve is mounted on the screw and its outer side is movably installed in the cross-shaped inner cavity, the bottom end of the screw is rotatably connected to the drill bit, the connecting rod passes through the cross-shaped inner cavity and is respectively connected to the outer side of the cross-shaped screw sleeve and the inner middle part of the reaming claw through a rotating pair, and the bottom end of the reaming claw is connected to the drill bit through a rotating pair.

[0012] Preferably, flushing holes are provided on the side walls of the cross-shaped inner cavity.

[0013] The beneficial effects of the present invention are: The device is designed with an assembled drill rod to meet different drilling depths, and is quick and easy to load and unload. Most of the hole expansion structure of the device is hidden in the drill rod seat, and the mud and rocks generated during the drilling and hole expansion process can be discharged through the discharge channel, so the device is minimally affected by the mud and rocks falling in the hole. At the same time, the device can also flush the mud and rocks through the cleaning channel on the drill rod seat, which can extend the service life of the device and reduce replacement costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the technical solution of the embodiment of the present invention, the drawings required for describing the embodiment are briefly introduced below. Those skilled in the art can also obtain other drawings based on these drawings without paying any creative work.

[0015] Figure 1 It is a structural diagram of the present invention; Figure 2 It is a cross-sectional schematic diagram of the front view of the present invention; Figure 3 It is a structural diagram of the drill rod seat of the present invention; Figure 4 For the present invention Figure 3 A schematic cross-sectional view of the main view; Figure 5 For the present invention Figure 4 A is a cross-sectional schematic diagram; Figure 6 For the present invention Figure 4 A partial schematic diagram of B in the middle; In the accompanying drawings, the components represented by the reference numerals are listed as follows: 1. Locking rod sleeve; 2. Base platform; 3. Drive motor A; 4. Rotating shaft; 5. Drive motor B; 6. Pinion; 7. Large gear; 8. Unit drill rod; 9. Drill rod seat; 10. Drill bit; 11. Hole expansion structure; 12. Discharge channel; 13. Cleaning channel; 14. Screw; 15. Cross-shaped screw sleeve; 16. Connecting rod; 17. Hole expansion claw; 18. Flushing hole; 19. Cross-shaped inner cavity; 20. Slot; 21. Limit card. DETAILED DESCRIPTION

[0016] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present invention.

[0017] like Figures 1 to 6As shown, the prior art in this embodiment has the following problems: the inventor has found through inquiry that the prior art, such as Chinese patent (CN118273658A), discloses a geological exploration reaming device. Although the reaming diameter can be adjusted, the device has the following defects: the length of the drill rod in the device is limited, and each drill rod can only be used for underground drilling at a corresponding depth, and the loading and unloading is cumbersome; although the reaming structure of the device can adjust the reaming range, the connection structure between the reaming plate and the drill rod is exposed, so it is easy to be affected by the soil and rocks falling in the hole during the drilling and reaming process; and the device cannot discharge the soil and rocks during the drilling and reaming process, which will greatly affect the drilling and reaming efficiency. At the same time, its reaming mechanism is easily blocked by soil and rocks, and it is difficult to clean it quickly.

[0018] Therefore, the inventor provides a reaming device for geological exploration, including a frame, an assembled drill rod, and a reaming assembly. The assembled drill rod is installed on the central axis of the frame, and the reaming assembly is installed at the lower end of the assembled drill rod. The frame also includes a lift, a base, a drive device, and a drive motor A3. The left side of the base is installed with a lift that can be raised and lowered by a controller (not shown in the figure), and the right side above the base is provided with a drive device that can drive the assembled drill rod to rotate. The drive motor A3 is installed above the base and can be connected to the rotating shaft 4 in the center of the assembled drill rod (not shown in the figure); the assembled drill rod It is composed of a number of identical unit drill rods 8 assembled up and down according to the required drilling depth. The center of the assembled drill rod is rotatably installed with a rotating shaft 4 that can control the opening and closing of the reaming assembly; the reaming assembly also includes a drill rod seat 9, a drill bit 10, a reaming structure 11, a discharge channel 12, and a cleaning channel 13. The drill bit 10 is arranged at the lower end of the drill rod seat 9, and a cross-shaped inner cavity 19 is arranged on the drill rod seat 9 above the drill bit 10, and the reaming structure 11 with adjustable reaming diameter is installed in the cross-shaped inner cavity 19. The drill rod seat 9 is also provided with a discharge channel 12 connected to the drill rod and a cleaning channel 13 pointing to the reaming structure 11.

[0019] The effect is as follows: the device is designed with an assembled drill rod, which can meet different drilling depths, and is easy and quick to load and unload. Most of the hole expansion structure 11 of the device is hidden in the drill rod seat 9, and the mud and rocks generated during the drilling and hole expansion process can be discharged through the discharge channel 12, so the device is minimally affected by the mud and rocks falling in the hole. At the same time, the device can also flush the mud and rocks through the cleaning channel 13 on the drill rod seat 9, which can extend the service life of the device.

[0020] Furthermore, the base also includes a locking rod sleeve 1 and a base platform 2. The locking rod sleeve 1 is rotatably installed on the central axis of the base, and the base platform 2 is arranged on the upper surface of the base. The locking rod sleeve 1 in this structure can lock the top of the assembled drill rod and is driven to rotate by the driving device on the base platform 2. At the same time, the assembled drill rod on the base is driven downward by the elevator on the left side of the base, and the driving motor A3 can be installed on the locking rod sleeve 1 and rotate with it.

[0021] Furthermore, the driving device also includes a driving motor B5, a pinion 6, and a large gear 7. The driving motor B5 is installed on the base platform 2. The driving end of the driving motor B5 is connected to the pinion 6, and the pinion 6 is meshed with the large gear 7 arranged on the outside of the locking rod sleeve 1; this structure can drive the pinion 6 through the driving motor B5, thereby driving the large gear 7 to rotate, and then driving the locking rod sleeve 1 and the drill rod therein to rotate together.

[0022] Furthermore, a rotating shaft 4 is provided at the center of the unit drill rod 8, and a discharge channel 12 is provided in the unit drill rod 8 around the rotating shaft 4, and a card slot 20 and a limit card 21 are provided at the upper and lower ends of the rotating shaft 4 respectively; the rotating shaft 4 in this structure can transmit the power provided by the driving motor A3 through the card slot 20 and the limit card 21, and at the same time, the discharge channel 12 therein can be used to discharge the soil and rock debris generated by the hole expansion structure 11.

[0023] Furthermore, the reaming structure 11 also includes a screw 14, a cross-shaped screw sleeve 15, a connecting rod 16, and a reaming claw 17. The screw 14 is arranged at the lower end of the rotating shaft 4, the cross-shaped screw sleeve 15 is sleeved on the screw 14 and its outer side is movably installed in the cross-shaped inner cavity 19, the bottom end of the screw 14 is rotatably connected to the drill bit 10, the connecting rod 16 passes through the cross-shaped inner cavity 19 and connects the outer side of the cross-shaped screw sleeve 15 and the inner middle part of the reaming claw 17 through a rotating pair, and the bottom end of the reaming claw 17 is connected to the drill bit 10 through a rotating pair; during the drilling process, the structure When the structure is running, the driving motor A3 provides power to the rotating shaft 4, and then the cross-shaped screw sleeve 15 can slide up and down in the cross-shaped inner cavity 19 under the limit. When it moves downward, the upper side of the reaming claw 17 can be pushed outward by the connecting rod 16. When the cross-shaped screw sleeve 15 slides upward, the reaming claw 17 can be retracted. In this process, the generated soil and rock fragments can be discharged through the discharge channel 12. When there are too much soil and rock fragments in the reaming structure 11, it can be flushed by injecting high-pressure water into the cleaning channel 13 of the drill rod seat 9.

[0024] Furthermore, a flushing hole 18 is provided on the side wall of the cross-shaped inner cavity 19 ; this structure can facilitate flushing of soil and rock debris in the hole expansion structure 11 .

[0025] The working principle of the present invention is as follows: when in use, the locking rod sleeve 1 in the structure can lock the top of the assembled drill rod, and the driving device on the base platform 2 drives it to rotate. At the same time, the elevator on the left side of the base drives the assembled drill rod on the base to drill downward, and the driving motor A3 can be installed on the locking rod sleeve 1 to rotate with it; during the drilling process, when the structure is in operation, the driving motor A3 provides power to the rotating shaft 4, and then the cross-shaped screw sleeve 15 can slide up and down in the cross-shaped inner cavity 19 under the limit. When it moves downward, the upper side of the reaming claw 17 can be pushed outward by the connecting rod 16. When the cross-shaped screw sleeve 15 slides upward, the reaming claw 17 can be retracted. In this process, the generated soil and rock debris can be discharged through the discharge channel 12, and when there are too much soil and rock debris in the reaming structure 11, it can be flushed by injecting high-pressure water into the cleaning channel 13 of the drill rod seat 9.

[0026] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

[0027] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A hole reaming device for geological exploration, comprising a frame, an assembled drill rod, and a hole reaming assembly, wherein the assembled drill rod is mounted on the central axis of the frame, and the hole reaming assembly is mounted on the lower end of the assembled drill rod, characterized in that: The frame also includes a lift, a base, a drive device, and a drive motor A (3). The left side of the base is equipped with a lift that can be raised and lowered by a controller. The right side above the base is equipped with a drive device that can drive the assembled drill rod to rotate. The drive motor A (3) is installed above the base and can be connected to a central shaft (4) of the assembled drill rod. The assembled drill rod is composed of a plurality of identical unit drill rods (8) assembled up and down according to the required drilling depth. The central shaft (4) of the assembled drill rod is rotatably installed with a shaft (4) that can control the opening and closing of the hole expansion assembly. The reaming assembly further comprises a drill rod seat (9), a drill bit (10), a reaming structure (11), a discharge channel (12), and a cleaning channel (13); the drill bit (10) is arranged at the lower end of the drill rod seat (9); a cross-shaped inner cavity (19) is arranged on the drill rod seat (9) above the drill bit (10); and the reaming structure (11) whose reaming diameter can be adjusted is installed in the cross-shaped inner cavity (19); the drill rod seat (9) is also provided with a discharge channel (12) connected to the drill rod and a cleaning channel (13) pointing to the reaming structure (11).

2. A hole expanding device for geological exploration according to claim 1, characterized in that: The base further comprises a locking rod sleeve (1) and a base platform (2); the locking rod sleeve (1) is rotatably mounted on the central axis of the base, and the base platform (2) is arranged on the upper surface of the base.

3. The hole expanding device for geological exploration according to claim 1, characterized in that: The driving device further comprises a driving motor B (5), a small gear (6), and a large gear (7). The driving motor B (5) is mounted on the base platform (2). The driving end of the driving motor B (5) is connected to the small gear (6). The small gear (6) is meshingly connected to the large gear (7) arranged on the outside of the locking rod sleeve (1).

4. The hole expanding device for geological exploration according to claim 1, characterized in that: A rotating shaft (4) is arranged at the center of the unit drill rod (8), a material discharge channel (12) is arranged in the unit drill rod (8) around the rotating shaft (4), and a clamping groove (20) and a limit clamp (21) are respectively arranged at the upper and lower ends of the rotating shaft (4).

5. The hole expanding device for geological exploration according to claim 1, characterized in that: The reaming structure (11) further comprises a screw (14), a cross-shaped screw sleeve (15), a connecting rod (16), and a reaming claw (17). The screw (14) is arranged at the lower end of the rotating shaft (4). The cross-shaped screw sleeve (15) is sleeved on the screw (14) and its outer side is movably installed in the cross-shaped inner cavity (19). The bottom end of the screw (14) is rotatably connected to the drill bit (10). The connecting rod (16) passes through the cross-shaped inner cavity (19) and is respectively connected to the outer side of the cross-shaped screw sleeve (15) and the inner middle part of the reaming claw (17) through a rotating pair. The bottom end of the reaming claw (17) is connected to the drill bit (10) through a rotating pair.

6. The hole expanding device for geological exploration according to claim 1, characterized in that: A flushing hole (18) is provided on the side wall of the cross-shaped inner cavity (19).

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