A reamer for geological exploration

Abstract

This utility model discloses a borehole reamer for geological exploration, including a frame, a movable plate slidably connected to the inner wall of the frame, a motor fixedly connected to the upper surface of the movable plate, and a drilling assembly fixedly connected to the output end of the motor through the lower surface of the movable plate. A slidable reamer is arranged radially on the surface of the drilling assembly, and a driving part is provided inside the drilling assembly to drive the reamer to slide radially. The reamer includes a reamer block with two outer working surfaces and a guide wall located between the two outer working surfaces. A transition wall is formed at the bottom of the guide wall. This utility model achieves borehole reaming by setting a reamer block and cooperating with a first and second reamer protrusion. By setting a sliding rod, the reamer block can slide radially along the cylinder to adjust the borehole diameter. Compared with the prior art using a hinged reamer rod, this reduces the impact of gravel and debris on the structure, improving the reliability and service life of the device.

Description

Technical Field

[0001] This application relates to the field of geological exploration equipment technology, and in particular to a borehole expander for geological exploration. Background Technology

[0002] Geological exploration is an investigation and research activity that uses various means and methods to explore and detect geology, determine suitable bearing strata, determine the foundation type based on the bearing capacity of the bearing strata, and calculate foundation parameters. In geological exploration operations, drill bits are used to create holes in the exploration area, and sometimes, when larger holes are needed, borehole enlargers are used to enlarge the boreholes.

[0003] A search revealed Chinese patent CN 217538579 U, which discloses a borehole reamer for geological exploration. This reamer allows for flexible adjustment of the borehole diameter, making it more convenient to use. However, when the reamer rod is extended, gaps easily form between adjacent rods, allowing rock fragments and debris to penetrate the internal structure during drilling. These intruders accumulate at the rotating joints of the reamer rod (such as the first rotating seat, connecting rod hinge point, etc.), accelerating component wear and even jamming the reamer rod, severely impacting equipment reliability and service life. Therefore, a borehole reamer for geological exploration is proposed to solve these problems. Utility Model Content

[0004] The purpose of this invention is to provide a borehole reamer for geological exploration to solve the problems mentioned in the background art.

[0005] The embodiments of this application adopt the following technical solutions:

[0006] A borehole reamer for geological exploration includes a frame, a movable plate slidably connected to the inner wall of the frame, a motor fixedly connected to the upper surface of the movable plate, the output end of the motor penetrating the lower surface of the movable plate and fixedly connected to a drilling assembly, a slidable reamer component arranged radially on the surface of the drilling assembly, a driving part for driving the reamer component to slide radially inside the drilling assembly, and the reamer component including a reamer block having two outer working surfaces and a guide wall located between the two outer working surfaces, with a transition wall formed at the bottom of the guide wall.

[0007] Preferably, the drilling assembly includes a cylinder, a drill bit is fixedly connected to the bottom of the cylinder, a connecting shaft is provided at the top of the cylinder, the connecting shaft is fixedly connected to the output end of the motor, and the hole reaming assembly is arranged radially along the cylinder.

[0008] Preferably, the hole enlarging assembly further includes a sliding hole radially formed along the surface of the cylinder, and a sliding rod slidably connected to the inner wall of the sliding hole. One end of the sliding rod is fixedly connected to the hole enlarging block, and the other end of the sliding rod is fixedly connected to a limit rod.

[0009] Preferably, a first enlarged hole protrusion is fixedly connected to the surface of the outer working surface, and a second enlarged hole protrusion is fixedly connected to the surfaces of the guide wall and the transition wall.

[0010] Preferably, the driving unit includes a movable block that can move along the length of the cylinder, a connecting block is provided at the bottom of the movable block, a driving rod is rotatably connected to the surface of the connecting block, and the end of the driving rod away from the connecting block is rotatably connected to the top of the limiting rod.

[0011] Preferably, the surface of the movable block is provided with an external thread, and the inner wall of the cylinder is provided with an internal thread that mates with the external thread. The movable block is threadedly connected to the inner wall of the cylinder. The upper surface of the movable block is fixedly connected to the bottom end of the connecting shaft, and the lower surface of the movable block is rotatably connected to the upper surface of the connecting block.

[0012] Preferably, an end cap is fitted onto the surface of the connecting shaft, the end cap is fixedly connected to the top of the cylinder, the upper surface of the end cap has a through hole, and the upper surface of the moving block has a plurality of threaded holes arranged in a circumferential array, and a locking bolt is provided in the through hole to prevent the moving block from rotating circumferentially.

[0013] Preferably, an extension block is fixedly connected to the side of the movable plate, a clearance groove for the extension block to move is provided on the side of the upright, a fixing plate is fixedly connected to the side of the upright, a cylinder is fixedly connected to the upper surface of the fixing plate, and the output end of the cylinder passes through the lower surface of the fixing plate and is fixedly connected to the extension block.

[0014] Preferably, a conical transition block is fixedly connected to the surface of the cylinder, and a stone ridge is fixedly connected to the surface of the transition block.

[0015] The above-described technical solutions adopted in the embodiments of this application can achieve the following beneficial effects:

[0016] In this invention, the hole-expanding operation is achieved by setting a hole-expanding block, a first hole-expanding protrusion, and a second hole-expanding protrusion. By setting a sliding rod, the hole-expanding block can slide radially along the cylinder to adjust the hole diameter. Compared with the existing technology that uses a hinged hole-expanding rod, this reduces the impact of gravel and debris on the structure and improves the reliability and service life of the device. Attached Figure Description

[0017] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings:

[0018] Figure 1 Here is a three-dimensional structural schematic diagram of this utility model;

[0019] Figure 2 Here is a front view of the structure of this utility model;

[0020] Figure 3 Here is a three-dimensional structural diagram of the drilling assembly of this utility model;

[0021] Figure 4 See: A cross-sectional view of the rotating hole assembly of this utility model;

[0022] Figure 5 Here is a schematic diagram of the front section of the drilling assembly of this utility model;

[0023] Figure 6 This utility model is: Figure 5 Enlarged structural diagram at point A;

[0024] Figure 7 See: A three-dimensional structural diagram of the hole-expanding assembly of this utility model.

[0025] In the diagram: 1. Frame; 2. Movable plate; 3. Motor; 4. Drilling assembly; 401. Cylinder; 402. Drill bit; 403. Connecting shaft; 5. Reaming assembly; 501. Reaming block; 502. External working surface; 503. Guide wall; 504. Transition wall; 505. Slide rod; 506. Limiting rod; 507. First reaming protrusion; 508. Second reaming protrusion; 6. Moving block; 7. Connecting block; 8. Drive rod; 9. End cap; 10. Threaded hole; 11. Locking bolt; 12. Extension block; 13. Fixing plate; 14. Cylinder; 15. Transition block; 16. Crushed stone edge. Detailed Implementation

[0026] To make the objectives, technical solutions, and advantages of this application clearer, the technical solutions of this application will be clearly and completely described below in conjunction with specific embodiments and corresponding drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0027] The technical solutions provided by the various embodiments of this application are described in detail below with reference to the accompanying drawings.

[0028] Please see Figure 1-7 This utility model provides a technical solution for a borehole reamer used in geological exploration:

[0029] A borehole reamer for geological exploration includes a frame 1. A movable plate 2 is slidably connected to the inner wall of the frame 1. A motor 3 is fixedly connected to the upper surface of the movable plate 2. The output end of the motor 3 passes through the lower surface of the movable plate 2 and is fixedly connected to a drilling assembly 4. A slidable borehole reamer 5 is arranged radially on the surface of the drilling assembly 4. A driving part for driving the borehole reamer 5 to slide radially is arranged inside the drilling assembly 4. The borehole reamer 5 includes a reamer block 501. The reamer block 501 has two outer working surfaces 502 and a guide wall 503 located between the two outer working surfaces 502. A transition wall 504 is formed at the bottom of the guide wall 503.

[0030] Specifically, the output of motor 3 drives the drilling assembly 4 to rotate. With the cooperation of movable plate 2, the drilling assembly 4 moves downward to perform drilling operations. At the same time, the reaming assembly 5 rotates with the drilling assembly 4. When the reaming assembly 5 contacts the ground, it enlarges the diameter of the hole. By setting the reaming assembly 5 to slide radially along the surface of the drilling assembly 4, the diameter of the enlarged hole can be adjusted. Compared with the existing technology that uses a hinged reaming rod, this reduces the impact of gravel and debris on the structure and improves the reliability and service life of the device.

[0031] The drilling assembly 4 includes a cylinder 401, with a drill bit 402 fixedly connected to the bottom of the cylinder 401 and a connecting shaft 403 provided at the top of the cylinder 401. The connecting shaft 403 is fixedly connected to the output end of the motor 3. The reaming assembly 5 is arranged radially along the cylinder 401. The output end of the motor 3 drives the connecting shaft 403 to rotate, which in turn drives the cylinder 401 to rotate. The cylinder 401 then drives the drill bit 402 to rotate to perform drilling.

[0032] The hole enlarging assembly 5 also includes a sliding hole radially formed along the surface of the cylinder 401, and a sliding rod 505 slidably connected to the inner wall of the sliding hole. One end of the sliding rod 505 is fixedly connected to the hole enlarging block 501, and the other end of the sliding rod 505 is fixedly connected to a limit rod 506.

[0033] The surface of the outer working surface 502 is fixedly connected with a first reaming protrusion 507, and the surfaces of the guide wall 503 and the transition wall 504 are both fixedly connected with second reaming protrusions 508. By setting the outer working surface 502 to cooperate with the first reaming protrusion 507, the inner wall of the hole is enlarged. By setting the guide wall 503 to cooperate with the second reaming protrusion 508, the inner wall of the hole is gradually enlarged until it is shaped. By setting the transition wall 504, the abruptness of the hole wall from the drill bit 402 to the guide wall 503 is reduced, and the working pressure of the reaming block 501 is reduced.

[0034] The drive unit includes a movable block 6 that can move along the length of the cylinder 401. A connecting block 7 is provided at the bottom of the movable block 6. A drive rod 8 is rotatably connected to the surface of the connecting block 7. One end of the drive rod 8 away from the connecting block 7 is rotatably connected to the top of the limiting rod 506. By moving the movable block 6 downward along the length of the cylinder 401, the connecting block 7 is moved downward, which in turn drives the drive rod 8 to move, reducing the angle between the drive rod 8 and the horizontal direction. The other end of the drive rod 8 drives the limiting rod 506, causing the sliding rod 505 to move outward from the cylinder 401, which in turn drives the expanding block 501 to move outward, increasing the diameter of the hole.

[0035] The surface of the movable block 6 is provided with an external thread, and the inner wall of the cylinder 401 is provided with an internal thread that mates with the external thread. The movable block 6 is threadedly connected to the inner wall of the cylinder 401. The upper surface of the movable block 6 is fixedly connected to the bottom end of the connecting shaft 403, and the lower surface of the movable block 6 is rotatably connected to the upper surface of the connecting block 7. By setting the external and internal threads, the movable block 6 can be rotated to achieve its downward movement, and at the same time, the movable block 6 can be self-locked.

[0036] An end cap 9 is fitted onto the surface of the connecting shaft 403. The end cap 9 is fixedly connected to the top of the cylinder 401. A through hole is provided on the upper surface of the end cap 9, and multiple threaded holes 10 arranged in a circumferential array are provided on the upper surface of the moving block 6. A locking bolt 11 is provided in the through hole to prevent the moving block 6 from rotating circumferentially. By setting the end cap 9 to limit the moving block 6, and by setting the locking bolt 11 and multiple threaded holes 10, the moving block 6 can be locked to prevent it from rotating circumferentially due to vibration, thereby improving the stability during hole expansion.

[0037] An extension block 12 is fixedly connected to the side of the movable plate 2. A clearance groove for the extension block 12 to move is provided on the side of the upright frame 1. A fixed plate 13 is fixedly connected to the side of the upright frame 1. A cylinder 14 is fixedly connected to the upper surface of the fixed plate 13. The output end of the cylinder 14 passes through the lower surface of the fixed plate 13 and is fixedly connected to the extension block 12. The extension block 12 is driven to move downward through the output end of the cylinder 14, which in turn drives the movable plate 2 to move downward to cooperate with drilling and reaming operations.

[0038] A conical transition block 15 is fixedly connected to the surface of the cylinder 401. A stone rib 16 is fixedly connected to the surface of the transition block 15. By setting the transition block 15, the working pressure of the hole expansion block 501 is further reduced.

[0039] Working principle: When using this geological exploration borehole reamer, the user first moves the device to the target position and places it stably. Then, the user rotates the connecting shaft 403, which drives the moving block 6 to rotate. Under the engagement of the external and internal threads, the moving block 6 moves downwards along the length of the cylinder 401 during rotation. The moving block 6 drives the connecting block 7 downwards, which in turn drives the drive rod 8 to move, reducing the angle between the drive rod 8 and the horizontal direction. The other end of the drive rod 8 drives the limiting rod 506, causing the sliding rod 505 to move outwards from the cylinder 401. The sliding rod 505 drives the reamer block 501 outwards, adjusting the size of the reamed hole. At this time, the moving block 6 self-locks under the action of the external and internal threads. Based on the distance between the moving block 6 and the end cap 9, take out a locking bolt 11 of appropriate length to lock the moving block 6, thereby improving stability. Then, connect the connecting rod to the output shaft of the motor 3 through a coupling, and then start the motor 3. The output end of the motor 3 drives the drilling assembly 4 to rotate, and the drilling assembly 4 drives the reaming assembly 5 to rotate. Then, start the cylinder 14. The output end of the cylinder 14 drives the extension block 12 to move downward, and the extension block 12 drives the movable plate 2 to move downward. The movable plate 2 drives the motor 3, the drilling assembly 4, and the reaming assembly 5 to move downward to cooperate with drilling and reaming operations. Compared with the existing technology that uses a hinged reaming rod, this reduces the impact of gravel and debris on the structure and improves the reliability and service life of the device.

[0040] It should also be noted that the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0041] The above description is merely an embodiment of this application and is not intended to limit the scope of this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the scope of the claims of this application.

Claims

1. A borehole reamer for geological exploration, comprising a frame (1), wherein a movable plate (2) is slidably connected to the inner wall of the frame (1), a motor (3) is fixedly connected to the upper surface of the movable plate (2), and the output end of the motor (3) penetrates the lower surface of the movable plate (2) and is fixedly connected to a drilling assembly (4), characterized in that, The surface of the drilling assembly (4) is provided with a slidable reaming assembly (5) along its radial direction. The interior of the drilling assembly (4) is provided with a driving part for driving the reaming assembly (5) to slide along its radial direction. The reaming assembly (5) includes a reaming block (501), which has two outer working surfaces (502) and a guide wall (503) located between the two outer working surfaces (502). A transition wall (504) is formed at the bottom of the guide wall (503).

2. The borehole reamer for geological exploration according to claim 1, characterized in that: The drilling assembly (4) includes a cylinder (401), a drill bit (402) is fixedly connected to the bottom of the cylinder (401), a connecting shaft (403) is provided at the top of the cylinder (401), the connecting shaft (403) is fixedly connected to the output end of the motor (3), and the hole expansion assembly (5) is arranged radially along the cylinder (401).

3. A borehole reamer for geological exploration according to claim 2, characterized in that: The enlarging assembly (5) further includes a sliding hole radially opened along the surface of the cylinder (401), and a sliding rod (505) is slidably connected to the inner wall of the sliding hole. One end of the sliding rod (505) is fixedly connected to the enlarging block (501), and the other end of the sliding rod (505) is fixedly connected to a limit rod (506).

4. A borehole reamer for geological exploration according to claim 1, characterized in that: The surface of the outer working surface (502) is fixedly connected with a first enlarged hole protrusion (507), and the surfaces of the guide wall (503) and the transition wall (504) are both fixedly connected with a second enlarged hole protrusion (508).

5. A borehole reamer for geological exploration according to claim 3, characterized in that: The drive unit includes a movable block (6) that can move along the length of the cylinder (401). A connecting block (7) is provided at the bottom of the movable block (6). A drive rod (8) is rotatably connected to the surface of the connecting block (7). One end of the drive rod (8) away from the connecting block (7) is rotatably connected to the top of the limiting rod (506).

6. A borehole reamer for geological exploration according to claim 5, characterized in that: The surface of the movable block (6) is provided with an external thread, and the inner wall of the cylinder (401) is provided with an internal thread that mates with the external thread. The movable block (6) is threadedly connected to the inner wall of the cylinder (401). The upper surface of the movable block (6) is fixedly connected to the bottom end of the connecting shaft (403), and the lower surface of the movable block (6) is rotatably connected to the upper surface of the connecting block (7).

7. A borehole reamer for geological exploration according to claim 6, characterized in that: The surface of the connecting shaft (403) is fitted with an end cap (9), which is fixedly connected to the top of the cylinder (401). The upper surface of the end cap (9) is provided with a through hole, and the upper surface of the moving block (6) is provided with a plurality of threaded holes (10) arranged in a circumferential array. A locking bolt (11) is provided in the through hole to prevent the moving block (6) from rotating circumferentially.

8. A borehole reamer for geological exploration according to claim 1, characterized in that: An extension block (12) is fixedly connected to the side of the movable plate (2). A clearance groove for the extension block (12) is provided on the side of the upright frame (1). A fixing plate (13) is fixedly connected to the side of the upright frame (1). A cylinder (14) is fixedly connected to the upper surface of the fixing plate (13). The output end of the cylinder (14) passes through the lower surface of the fixing plate (13) and is fixedly connected to the extension block (12).

9. A borehole reamer for geological exploration according to claim 2, characterized in that: A conical transition block (15) is fixedly connected to the surface of the cylinder (401), and a gravel ridge (16) is fixedly connected to the surface of the transition block (15).

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