A drilling apparatus for use in mineral exploration

Abstract

The utility model discloses a kind of drilling equipment for prospecting engineering, it is related to drilling equipment technical field.The drilling equipment for prospecting engineering, including drilling machine and internal combustion engine box, internal combustion engine box is equipped with diesel engine and hydraulic pump inside, and diesel engine provides power for the drive structure inside hydraulic pump and drilling machine;Limiting component includes mast, first hydraulic rod is hinged on the upper end of drilling machine, the upper end of drilling machine is fixedly connected with first limiting frame, the side of mast close to first limiting frame is fixedly connected with mast connecting frame, mast is hinged to the front end of drilling machine, cooperate first hydraulic rod hinged on the upper end of drilling machine, can drive mast to overturn up and down around hinge point, preliminary adjust drilling angle, by limiting pin insertion alignment limiting hole, different angle can be accurately locked, realize multi-angle quick switching, satisfy the angle demand of different scene in prospecting operation, solve the problem that angle cannot be adjusted, sampling is inconvenient due to drilling machine fixed on upper plate in traditional equipment.

Description

Technical Field

[0001] This utility model relates to the field of drilling equipment technology, and in particular to a drilling equipment for mineral exploration engineering. Background Technology

[0002] Drilling equipment refers to mechanical devices and equipment used in specific drilling operations. It mainly consists of drilling rigs, mud pumps and mud purification equipment, mud mixers, and drilling towers. Drilling equipment varies greatly depending on its application, ranging from small, handheld thin-walled drilling rigs weighing only a dozen kilograms (for drilling holes in walls to install pipes such as water pipes). A Chinese utility model patent, authorized announcement number "CN211950481U," discloses a geological drilling core sampler, including a portable core sampling drill and an auxiliary frame. The portable core sampling drill includes a two-stroke gasoline engine and a drill rod. The two-stroke gasoline engine is connected to the drill rod, and a drill bit is installed at the end of the drill rod. The auxiliary frame includes an upper plate with multiple legs rotatably connected to its bottom. A limiting mechanism is provided on one side of the upper plate, and a lifting mechanism is provided in the middle of the upper plate. The portable core sampling drill is mounted on the lifting mechanism.

[0003] The device in the aforementioned patent can perform core sampling simply by mounting a portable drill on an auxiliary frame and using a lifting mechanism, without having to carry a portable core sampling drill weighing over ten kilograms at all times. The outriggers can be telescopic, making it convenient for use on uneven terrain. The lifting mechanism can also be equipped with auxiliary mechanisms such as a pull-down mechanism and an automatic jacking mechanism to achieve automated core sampling and keep people away from drill noise. However, the above technical solution still has certain drawbacks. The drill acts on the plate, which means that the drill can only sample at one angle, and therefore cannot adjust the angle according to different needs, making sampling inconvenient. Therefore, this utility model proposes a new solution. Utility Model Content

[0004] The purpose of this utility model is to at least solve one of the technical problems existing in the prior art, and to provide a drilling equipment for mineral exploration engineering that can solve the problem that the drilling rig acts on the plate, which causes the drilling rig to only be able to sample at one angle, thus making it impossible to adjust the angle according to different needs, and thus making it inconvenient to sample.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a drilling equipment for mineral exploration engineering, including a drilling rig and an internal combustion engine box, wherein a diesel engine and a hydraulic pump are installed inside the internal combustion engine box, and the diesel engine provides power to the hydraulic pump and the drive structure inside the drilling rig; A limiting component is provided at the front end of the drilling rig. The limiting component includes a mast, which is hinged to the front end of the drilling rig. A first hydraulic rod is hinged to the upper end of the drilling rig, and the output end of the first hydraulic rod is hinged to the mast. The upper end of the drilling rig is fixedly connected to a first limiting frame. The side of the first limiting frame away from the mast is arc-shaped. The side of the mast close to the first limiting frame is fixedly connected to a mast connecting frame. Multiple limiting holes are opened on the arc-shaped section of the surface of the first limiting frame. The surface of the mast connecting frame is also provided with limit holes, and the limit holes on the surface of the mast connecting frame are engaged with the corresponding limit holes on the surface of the first limit frame with limit pins.

[0006] Preferably, the limiting component further includes a fixed seat, the upper end of which is hinged to a first mast support rod, and the interior of the first mast support rod is slidably connected to a second mast support rod, the side of the second mast support rod away from the first mast support rod being hinged to the mast. The first mast support rod has a first limiting bolt connected to its internal thread, and the first mast support rod and the second mast support rod are fixed together by the first limiting bolt.

[0007] Preferably, there are two sets of the first mast support rod, the second mast support rod, and the first limiting bolt.

[0008] Preferably, a guide frame is fixedly connected to the front end of the mast, a first hydraulic motor is fixedly connected to the upper end of the guide frame, a threaded rod is fixedly connected to the output end of the first hydraulic motor, and the threaded rod is rotatably connected to the guide frame. The threaded rod has a movable frame threaded onto its surface. A second hydraulic motor is mounted on the upper end of the movable frame, and a drill rod is mounted on the output end of the second hydraulic motor.

[0009] Preferably, a drill rod limiting frame is fixedly connected to the lower front end of the mast.

[0010] Preferably, there are two mast connecting frames, both located on the rear side of the mast.

[0011] Preferably, a second limiting frame is fixedly connected to the upper end of the drilling rig, and the side of the second limiting frame away from the mast is arc-shaped; The arc-shaped surface of the second limiting frame also has multiple limiting holes; The limiting holes on the surface of the second limiting frame are offset from the corresponding limiting holes on the surface of the first limiting frame.

[0012] Preferably, the upper ends of the two first mast support rods can be provided with grooves, the surfaces of the two first mast support rods are respectively fitted with two clamps, and the outer sides of the two first mast support rods are provided with multiple second limiting bolts; Multiple second limit bolts are respectively connected to the corresponding clamp threads.

[0013] Compared with the prior art, the beneficial effects of this utility model are: 1. The drilling equipment used in this exploration project has a mast hinged to the front end of the drilling rig. In conjunction with the first hydraulic rod hinged to the upper end of the drilling rig, the mast can be driven to rotate up and down around the hinge point to initially adjust the drilling angle. At the same time, the first limiting frame fixed to the upper end of the drilling rig cooperates with the mast connecting frame fixed to the rear side of the mast. By inserting the limiting pin into the aligned limiting hole, different angles can be precisely locked, realizing rapid switching of multiple angles. This meets the angle requirements of different scenarios in exploration operations and solves the problem of traditional equipment where the angle cannot be adjusted and sampling is inconvenient due to the drilling rig being fixed to the upper plate.

[0014] 2. The drilling equipment used in this exploration project significantly enhances stability during drilling through multiple limiting structures, preventing angular deviations from affecting sampling accuracy. The second mast support rod can slide within the first mast support rod to adapt to changes in mast angle. Combined with the first limiting bolt connected internally to the threaded connection of the first mast support rod, tightening it locks their relative positions through friction, providing initial support for the mast. This effectively prevents relative slippage of the mast support rod due to drill rod vibration during drilling in soft geological conditions. Furthermore, the dual locking of the limiting pin and the mast support rod controls the amount of mast angle deviation, significantly improving the accuracy of sampling positions and overcoming the shortcomings of traditional equipment in terms of poor stability and low sampling accuracy under complex geological conditions. Attached Figure Description

[0015] The present invention will be further described below with reference to the accompanying drawings and embodiments: Figure 1 This is a schematic diagram of the structure of a drilling equipment for mineral exploration engineering according to the present invention; Figure 2 This is a side view of the drilling equipment of this utility model; Figure 3 This is a schematic diagram of the first limiting bolt of this utility model; Figure 4 This is a schematic diagram of the mast of this utility model; Figure 5 This is a schematic diagram of the second limiting frame of this utility model; Figure 6 This is a schematic diagram of the clamp of this utility model; Figure 7 This utility model Figure 2 Enlarged view of point A in the middle; Figure 8 This utility model Figure 5 Enlarged diagram of point B in the middle.

[0016] Reference numerals in the attached drawings: 1. Drilling rig; 2. Internal combustion engine box; 3. Mast; 4. First hydraulic rod; 5. Support column; 6. Fixed seat; 7. First mast support rod; 8. Second mast support rod; 9. First limiting bolt; 10. First limiting frame; 11. Second limiting frame; 12. Mast connecting frame; 13. Limiting hole; 14. Limiting pin; 15. Groove; 16. Clamp; 17. Second limiting bolt; 18. Guide frame; 19. First hydraulic motor; 20. Threaded rod; 21. Movable frame; 22. Second hydraulic motor; 23. Drill rod limiting frame. Detailed Implementation

[0017] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.

[0018] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0019] In the description of this utility model, terms such as greater than, less than, and exceeding are understood to exclude the stated number, while terms such as above, below, and within are understood to include the stated number. The use of "first" and "second" in the description is merely for distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the quantity or sequence of the indicated technical features.

[0020] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0021] Please see Figure 1-8 This utility model provides a technical solution: a drilling equipment for mineral exploration engineering. The drilling rig 1 and the internal combustion engine box 2 are the core power and working carrier of the equipment. The diesel engine installed inside the internal combustion engine box 2 supplies power to the internal drive structure of the drilling rig 1 through mechanical transmission, and at the same time drives the hydraulic pump to operate, converting mechanical energy into hydraulic energy, providing a power basis for subsequent angle adjustment and drilling execution elements, ensuring that the equipment can operate independently in the field exploration scenario without external power supply.

[0022] The front end of the drilling rig 1 is hinged to the mast 3. The mast 3 can be rotated around the hinge point to adjust the drilling angle. The upper end of the drilling rig 1 is hinged to the first hydraulic rod 4. The output end of the first hydraulic rod 4 is hinged to the mast 3. The extension and retraction of the first hydraulic rod 4 is controlled by the inflow and outflow of hydraulic oil. The mast 3 can be precisely pushed or pulled to rotate, so as to achieve the initial adjustment of the drilling angle and solve the problem of fixed angle of traditional equipment.

[0023] The upper end of the drilling rig 1 is fixedly connected to the first limiting frame 10. The side of the first limiting frame 10 away from the mast 3 is arc-shaped, and the arc section is provided with multiple limiting holes 13. The surface of the mast connecting frame 12 fixed to the rear side of the mast 3 is also provided with limiting holes 13. When the mast 3 is adjusted to the target angle, the limiting pin 14 is inserted into the aligned limiting hole 13 to lock the angle of the mast 3, prevent the angle from shifting during drilling, and improve the sampling accuracy.

[0024] The fixed base 6 is fixed on the drilling rig 1 or the equipment base. Its upper end is hinged to the first mast support rod 7. The first mast support rod 7 is slidably connected to the second mast support rod 8. The end of the second mast support rod 8 away from the first mast support rod 7 is hinged to the mast 3. The extension and retraction of the second mast support rod 8 adapts to the angle change of the mast 3. With the first limiting bolt 9 connected to the thread inside the first mast support rod 7, the relative positions of the two sets of support rods can be locked after tightening, providing stable support for the mast 3.

[0025] The guide frame 18 is fixedly connected to the front end of the mast 3. The first hydraulic motor 19 is fixed to the upper end of the guide frame 18. The output end of the first hydraulic motor 19 is fixed to the threaded rod 20. The threaded rod 20 is rotatably connected to the guide frame 18, and the movable frame 21 is threadedly sleeved on its surface. When the first hydraulic motor 19 drives the threaded rod 20 to rotate, the movable frame 21 slides up and down along the guide frame 18, driving the second hydraulic motor 22 installed at the upper end and the drill rod to adjust their positions to meet the drilling needs at different depths.

[0026] The drill rod is installed at the output end of the second hydraulic motor 22 to provide rotational drilling power for the drill rod. The drill rod limiter 23 fixed at the lower front end of the mast 3 provides auxiliary limit to the lower end of the drill rod to prevent radial displacement when the drill rod rotates, ensuring that the drill rod drills in the preset direction and avoiding sampling position deviation due to drill rod displacement.

[0027] Working principle: Start the diesel engine inside the internal combustion engine box 2. After the engine starts, it simultaneously supplies power to the hydraulic pump and the internal drive structure of the drilling rig 1. The hydraulic pump converts the mechanical energy of the diesel engine into hydraulic energy, providing high-pressure hydraulic oil to hydraulic actuators such as the first hydraulic rod 4, the first hydraulic motor 19, and the second hydraulic motor 22. The internal drive structure of the drilling rig 1 provides auxiliary power support for the overall basic operation of the equipment.

[0028] Hydraulic system preparation: High-pressure hydraulic oil output from the hydraulic pump is delivered to the control valves of each hydraulic component through pipelines. Operators adjust the control valves to precisely control the flow and pressure of the hydraulic oil, ensuring that each hydraulic component is in a ready-to-work state, laying the foundation for subsequent angle adjustment and drilling operations.

[0029] During this stage, the mast 3 is adjusted at multiple angles through the coordinated action of the limiting components to meet the sampling angle requirements of different exploration scenarios. The control valve is operated to allow high-pressure hydraulic oil to enter the rodless chamber of the first hydraulic rod 4, pushing the output end of the first hydraulic rod 4 to extend. Since the two ends of the first hydraulic rod 4 are respectively hinged to the upper end of the drilling rig 1 and the mast 3, when the output end extends, it causes the mast 3 to rotate upward around the hinge point with the drilling rig 1. If the mast 3 needs to rotate downward, the hydraulic oil is controlled to enter the rod chamber of the first hydraulic rod 4 to retract the output end, which can pull the mast 3 to rotate downward, thus initially adjusting the drilling angle.

[0030] During the tilting process of mast 3, the first mast support rod 7 and the second mast support rod 8 are adjusted synchronously. Since the second mast support rod 8 is hinged to mast 3 and the first mast support rod 7 is hinged to the fixed base 6, and the second mast support rod 8 can slide within the first mast support rod 7, when the angle of mast 3 changes, the second mast support rod 8 extends and retracts along the axial direction of the first mast support rod 7 to adapt to the position change of mast 3. After mast 3 is initially adjusted to near the target angle, the first limiting bolt 9 is rotated so that its end is tightly pressed against the surface of the second mast support rod 8, locking the relative position of the two sets of support rods through friction, providing initial support for mast 3.

[0031] Observe the relative position of the mast connecting frame 12 and the first limiting frame 10; if it is necessary to fine-tune the angle of the mast 3, loosen the first limiting bolt 9 slightly, and drive the mast 3 to rotate slightly around the hinge point by controlling the slight extension and retraction of the first hydraulic rod 4, so that the limiting hole 13 on the surface of the mast connecting frame 12 is completely aligned with a certain limiting hole 13 on the arc section of the surface of the first limiting frame 10.

[0032] Insert the limiting pin 14 into the two sets of aligning limiting holes 13. Through the mechanical limiting action of the limiting pin 14, the angle of the mast 3 is completely locked to prevent the angle of the mast 3 from shifting during drilling. At the same time, tighten the first limiting bolt 9 again so that the mast support rod and the limiting pin 14 form a double support and lock, ensuring the stability of the mast 3 during drilling operations.

[0033] The guide frame 18 at the front end of the mast 3 provides a fixed guide path for the movement of the drill rod, and the drill rod limiting frame 23 at the lower front end of the mast 3 provides auxiliary limiting for the lower end of the drill rod to prevent radial displacement of the drill rod during rotary drilling and ensure that the drill rod drills along the preset drilling direction.

[0034] The first hydraulic motor 19 is started, and its output end drives the threaded rod 20 to rotate around its own axis. Because the movable frame 21 is threadedly connected to the threaded rod 20, and the movable frame 21 is restricted by the guide frame 18 and cannot rotate with the threaded rod 20, the rotational motion of the threaded rod 20 is converted into the linear motion of the movable frame 21 along the axial direction of the threaded rod 20. The operator controls the forward and reverse rotation of the first hydraulic motor 19 to drive the movable frame 21 to move up and down along the guide frame 18, and adjusts the drill rod installed at the output end of the second hydraulic motor 22 to the drilling position.

[0035] The second hydraulic motor 22 is started, and its output end drives the drill rod to rotate at high speed. At the same time, the first hydraulic motor 19 is controlled to drive the movable frame 21 to move slowly downward, so that the high-speed rotating drill rod gradually drills into the ground. During the drilling process, the drill rod limiting frame 23 continuously limits the drill rod, and the guide frame 18 ensures that the movable frame 21 and the drill rod descend in a straight line, avoiding the drill rod from tilting or deviating, and ensuring the accuracy of the drilling depth and sampling position. If it is necessary to adjust the drilling depth, the downward distance of the movable frame 21 can be adjusted by controlling the running time of the first hydraulic motor 19.

[0036] After sampling is completed or the preset drilling depth is reached, the second hydraulic motor 22 is turned off to stop the drill rod from rotating; then the first hydraulic motor 19 is reversed to drive the movable frame 21 to move upward and pull the drill rod out from underground.

[0037] Pull out the limit pin 14, loosen the first limit bolt 9, control the output end of the first hydraulic rod 4 to retract, and drive the mast 3 to rotate downward around the hinge point to the initial position; at the same time, the second mast support rod 8 retracts along the first mast support rod 7, and finally shuts off the diesel engine, cuts off the power source of the equipment, and completes the entire exploration drilling process.

[0038] Furthermore, this equipment effectively breaks through the limitation of traditional equipment that can only sample from a single angle through the multi-structure collaborative design of the limiting components. The mast 3 is hinged to the front end of the drill rig 1. With the cooperation of the first hydraulic rod 4 hinged to the upper end of the drill rig 1, the mast 3 can be driven to rotate up and down around the hinge point to initially adjust the drilling angle. At the same time, the first limiting frame 10 fixed to the upper end of the drill rig 1 cooperates with the mast connecting frame 12 fixed to the rear side of the mast 3. By inserting the limiting pin 14 into the aligned limiting hole 13, different angles can be accurately locked, realizing rapid switching of multiple angles. This meets the angle requirements of different scenarios in mineral exploration operations and solves the problem that the angle cannot be adjusted and sampling is inconvenient in traditional equipment because the drill rig is fixed to the upper plate.

[0039] The equipment significantly enhances stability during drilling through multiple limiting structures, preventing angular deviations from affecting sampling accuracy. The second mast support rod 8 can slide within the first mast support rod 7 to adapt to changes in the mast 3 angle. In conjunction with the first limiting bolt 9 connected internally to the first mast support rod 7, tightening it locks the relative positions of the two through friction, providing initial support for the mast 3. This effectively prevents relative slippage of the mast support rods due to drill rod vibration during drilling in soft geological conditions. Furthermore, the double locking of the limiting pin 14 and the mast support rod controls the angular deviation of the mast 3, greatly improving the accuracy of the sampling position and solving the defects of poor stability and low sampling accuracy of traditional equipment under complex geological conditions.

[0040] Example 1: Dual limit frame coordinated adjustment, adaptable to multi-angle sampling in complex terrain. In mountain exploration operations, core samples need to be taken from the same exploration point at three angles: 30°, 45°, and 60°. Traditional equipment with a single limiting frame can only cover part of the angle, requiring frequent disassembly and adjustment, which is inefficient.

[0041] A second limiting frame 11 with the same structure as the first limiting frame 10 is symmetrically installed on the upper end of the drilling rig 1, so that the limiting hole 13 on the surface of the second limiting frame 11 is offset by 5° from the corresponding limiting hole 13 on the surface of the first limiting frame 10; at the same time, two sets of mast connecting frames 12 are fixed on the rear side of the mast 3, and the two sets of mast connecting frames 12 are respectively adapted to the first limiting frame 10 and the second limiting frame 11.

[0042] By using a double-limiting frame with a staggered design and a double-mast connecting frame, it enables rapid switching during multi-angle sampling without the need for repeated disassembly of the limiting structure. This improves angle adjustment efficiency by more than 40%, solving the problems of single angle adjustment and inconvenience in sampling in complex terrain with traditional equipment. It meets the needs of multi-angle detection at the same exploration point and improves the comprehensiveness of exploration data.

[0043] Example 2: Clamp-assisted positioning to enhance drilling stability in soft geological conditions. When prospecting in soft soil or sandy layers, the vibration of the drill rod during drilling can easily cause the first mast support rod 7 and the second mast support rod 8 to slide relative to each other, resulting in an angular deviation of the mast 3 and affecting the sampling accuracy.

[0044] The first mast support rod 7 is replaced with a structure with a groove 15 at the upper end. A clamp 16 is fitted onto the surface of the first mast support rod 7, with the inner side of the clamp 16 matching the groove 15. The second limiting bolt 17 passes through the clamp 16 and is tightened to fix the clamp 16 onto the surface of the first mast support rod 7, thus forming a double limit on the first mast support rod 7 and the second mast support rod 8.

[0045] The clamp 16 and the groove 15 work together, and the second limiting bolt 17 provides a fixing function. On the basis of the first limiting bolt 9, an additional mechanical limit is added, which effectively prevents the mast support rod from sliding relative to each other due to vibration during drilling in soft geological conditions. The angular offset of the mast 3 is controlled within 0.5°, the sampling position deviation is reduced, the problem of poor drilling stability of traditional equipment in soft geological conditions is solved, and the core sampling accuracy is improved.

[0046] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A drilling equipment for mineral exploration, characterized in that: It includes a drilling rig (1) and an internal combustion engine box (2). The internal combustion engine box (2) is equipped with a diesel engine and a hydraulic pump. The diesel engine provides power to the hydraulic pump and the drive structure inside the drilling rig (1). The limiting component is located at the front end of the drilling rig (1). The limiting component includes a mast (3), which is hinged to the front end of the drilling rig (1). A first hydraulic rod (4) is hinged to the upper end of the drilling rig (1), and the output end of the first hydraulic rod (4) is hinged to the mast (3). The upper end of the drilling rig (1) is fixedly connected to a first limiting frame (10). The side of the first limiting frame (10) away from the mast (3) is arc-shaped. The side of the mast (3) close to the first limiting frame (10) is fixedly connected to a mast connecting frame (12). Multiple limiting holes (13) are opened on the arc-shaped section of the surface of the first limiting frame (10). The surface of the mast connecting frame (12) also has a limit hole (13), and the limit hole (13) on the surface of the mast connecting frame (12) is engaged with the limit hole (13) on the surface of the first limit frame (10) by a limit pin (14).

2. The drilling equipment for mineral exploration engineering according to claim 1, characterized in that: The limiting assembly also includes a fixed seat (6), the upper end of which is hinged to a first mast support rod (7), and the interior of the first mast support rod (7) is slidably connected to a second mast support rod (8), the side of the second mast support rod (8) away from the first mast support rod (7) is hinged to the mast (3). The first mast support rod (7) has a first limiting bolt (9) connected to its internal thread. The first mast support rod (7) and the second mast support rod (8) are fixed together by the first limiting bolt (9).

3. The drilling equipment for mineral exploration engineering according to claim 2, characterized in that: There are two sets of the first mast support rod (7), the second mast support rod (8), and the first limiting bolt (9).

4. The drilling equipment for mineral exploration engineering according to claim 1, characterized in that: The front end of the mast (3) is fixedly connected to a guide frame (18), the upper end of the guide frame (18) is fixedly connected to a first hydraulic motor (19), the output end of the first hydraulic motor (19) is fixedly connected to a threaded rod (20), and the threaded rod (20) is rotatably connected to the guide frame (18). The threaded rod (20) is threaded with a movable frame (21), and a second hydraulic motor (22) is installed at the upper end of the movable frame (21). A drill rod is installed at the output end of the second hydraulic motor (22).

5. The drilling equipment for mineral exploration engineering according to claim 1, characterized in that: The lower front end of the mast (3) is fixedly connected to a drill pipe limiting frame (23).

6. The drilling equipment for mineral exploration engineering according to claim 1, characterized in that: There are two mast connecting frames (12), both located on the rear side of the mast (3).

7. The drilling equipment for mineral exploration engineering according to claim 1, characterized in that: The upper end of the drilling rig (1) is fixedly connected to a second limiting frame (11), and the side of the second limiting frame (11) away from the mast (3) is arc-shaped; The arc-shaped surface of the second limiting frame (11) is also provided with multiple limiting holes (13). The limiting holes (13) on the surface of the second limiting frame (11) are offset from the corresponding limiting holes (13) on the surface of the first limiting frame (10).

8. A drilling equipment for mineral exploration engineering according to claim 2, characterized in that: The upper ends of the two first mast support rods (7) can be provided with grooves (15), and two clamps (16) are respectively fitted on the surface of the two first mast support rods (7). Multiple second limiting bolts (17) are provided on the outer side of the two first mast support rods (7). Multiple second limit bolts (17) are threadedly connected to the corresponding clamps (16).

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