A geological drilling device

Abstract

The present invention belongs to the technical field of rock and soil layer drilling, and particularly relates to a geological drilling device, which comprises: an upper drilling assembly for drilling and storing rock cores; a lower drilling assembly for drilling, fixing and storing rock cores; the upper drilling assembly and the lower drilling assembly are coaxially arranged; a driving assembly for providing power to the upper drilling assembly and the lower drilling assembly and transporting the rock cores to the ground. The geological drilling device of the present invention performs opposite drilling construction on the rock and soil layer through the provided upper and lower drilling assemblies, preventing the rock cores from falling into the tunnel, increasing the efficiency of the reaming construction and the construction safety factor; the upper and lower drilling assemblies can also store the cut rock cores and send the cut rock cores to the ground for centralized treatment through the driving assembly, reducing the construction cost.

Description

Technical Field

[0001] The present invention belongs to the technical field of rock and soil layer drilling, and particularly relates to a geological drilling device. Background Art

[0002] In the technical field of rock and soil drilling, for the drilling construction of vertical ventilation holes in tunnels, it is necessary for the drill bit to drill into the rock and soil layer for drilling and reaming operations; in the prior art, for the drilling construction of vertical ventilation holes in tunnels, the construction method of drilling the drill bit from bottom to top into the rock and soil layer is often adopted. For example, the construction operation method disclosed in the Chinese patent with the publication number CN112412467B is to drill the drill bit from bottom to top into the rock and soil layer to open a vertical ventilation hole; adopting this construction method of drilling the drill bit into the rock and soil layer from bottom to top, the rock and soil cut by the drill bit will fall into the tunnel, and it is necessary to manually clean the rock and soil left by the drilling in the tunnel. The safety factor is low, the construction takes a long time, the work efficiency is low, and the construction cost is increased. Summary of the Invention

[0003] Based on this, in view of the problems existing in the prior art that the rock and soil cut in the tunnel are difficult to handle, which will increase the construction operation cost and reduce the safety factor, it is necessary to provide a geological drilling device.

[0004] The above object is achieved by the following technical solutions:

[0005] A geological drilling device includes: an upper drilling assembly for drilling and storing rock cores; a lower drilling assembly for drilling, storing, and fixing the drilled rock cores; the upper drilling assembly and the lower drilling assembly are coaxially arranged; a driving assembly for providing power to the upper drilling assembly and the lower drilling assembly and transporting the rock cores to the ground.

[0006] The upper drilling assembly includes an upper extension pipe and an upper cutting tool. The upper extension pipe can store the cut rock cores, and the upper cutting tool can cut the rock and soil layer; the upper extension pipe is provided with an upper end and a lower end. The upper end is provided with internal threads, and the lower end is provided with external threads. The upper cutting tool is threadedly connected to the upper extension pipe; the number of the upper extension pipes is at least one. When the number of the upper extension pipes is greater than one, the multiple upper extension pipes are threadedly connected to each other.

[0007] Further, it further includes a positioning rod for keeping the upper drilling assembly and the lower drilling assembly coaxial.

[0008] Further, the driving assembly includes a first driving unit for driving the upper drilling assembly to rotate.

[0009] Further, the driving assembly includes a first telescopic rod body that can provide a downward feeding force for the upper drilling assembly to cut the rock core downward.

[0010] Furthermore, the lower drilling assembly includes a lower extension pipe and a lower cutting tool. The lower extension pipe can store the cored rock, and the lower cutting tool can cut the rock and soil layer;

[0011] The lower extension pipe is provided with a first end and a second end. The first end is provided with an internal thread, and the second end is provided with an external thread. The lower cutting tool is threadedly connected to the lower extension pipe;

[0012] A clamping rack is arranged on the outer wall of the lower extension pipe, and the clamping rack is used to fix the lower extension pipe;

[0013] The number of the lower extension pipes is at least one. When the number of the lower extension pipes is greater than one, the multiple lower extension pipes are threadedly connected to each other.

[0014] Furthermore, the lower drilling assembly is provided with a clamping wheel, and the clamping wheel is used to fix the cored rock;

[0015] An inner groove is arranged on the inner wall of the lower extension pipe, and a first slideway is arranged on the inner groove. The angle between the direction of the first slideway and the tangent of the inner wall of the lower extension pipe is such that the clamping wheel is slidably engaged with the first slideway.

[0016] Furthermore, the driving assembly includes a second driving unit, and the second driving unit is used to drive the lower drilling assembly to rotate and fix the cored rock.

[0017] Furthermore, it further includes a shielding ring, and the shielding ring is used to block debris from entering the second driving unit and reduce the wear of the device.

[0018] Furthermore, the driving assembly includes a second telescopic rod body, and the second telescopic rod body can provide an upward feeding force for the lower drilling assembly to cut the cored rock and can transport the cored rock to the ground.

[0019] The beneficial effects of the present invention are as follows:

[0020] 1. A geological drilling device of the present invention performs opposite drilling operations through the upper and lower drilling assemblies provided. The cored rock is stored in the upper and lower extension pipes, preventing the cored rock from falling into the tunnel and increasing the efficiency of the reaming construction and the safety factor of the construction operation;

[0021] 2. The upper and lower extension pipes provided can store the cut cored rock, and the cut cored rock is sent to the ground for centralized treatment by the elongation of the lower telescopic rod body, reducing the construction cost;

[0022] 3. The clamping wheel provided fixes the cut cored rock, increasing the safety factor of the construction and enabling the cut cored rock to be better preserved and used as a rock and soil sample for experimental observation. Description of the Drawings

[0023] Figure 1 is a schematic structural diagram of an embodiment of a geological drilling device of the present invention;

[0024] Figure 2 Schematic diagram of the internal structure of an embodiment of a geological drilling device of the present invention;

[0025] Figure 3 Cross-sectional view of an embodiment of a geological drilling device of the present invention;

[0026] Figure 4 Partial structure schematic diagram of an embodiment of a geological drilling device of the present invention;

[0027] Figure 5 Structural diagram of the lower cutting tool of an embodiment of a geological drilling device of the present invention;

[0028] Figure 6 is Figure 5 Partial enlarged view at A in

[0029] Figure 7 Structural diagram of the lower extension pipe of an embodiment of a geological drilling device of the present invention;

[0030] Wherein:

[0031] 100, rock and soil layer; 110, tunnel; 120, core;

[0032] 200, upper support frame; 210, lower support frame; 220, positioning rod;

[0033] 300, upper drilling assembly; 310, upper extension pipe; 320, upper cutting tool;

[0034] 400, lower drilling assembly; 410, lower extension pipe; 420, lower cutting tool; 430, clamping rack; 450, clamping wheel; 460, inner groove; 470, first slideway;

[0035] 500, first drive unit; 510, first drive motor; 520, first transmission belt; 530, first swivel ring; 540, first telescopic rod body;

[0036] 600, second drive unit; 610, second drive motor; 620, second transmission belt; 630, second swivel ring; 640, shielding ring; 650, second telescopic rod body. Detailed implementation manners

[0037] In order to make the objectives, technical solutions and advantages of the present invention clearer and more understandable, the present invention will be further described in detail below through embodiments and in conjunction with the accompanying drawings. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0038] The serial numbers assigned to components in this document, such as "first", "second", etc., are only used to distinguish the described objects and do not have any sequential or technical meaning. The terms "connected" and "coupled" as used in this application, unless otherwise specified, both include direct and indirect connection (coupling). In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present invention.

[0039] In the present invention, unless otherwise clearly specified and limited, the first feature being "on" or "under" the second feature may be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "over" and "on top of" the second feature may be that the first feature is directly above or obliquely above the second feature, or merely indicates that the first feature has a higher horizontal height than the second feature. The first feature being "under", "beneath" and "underneath" the second feature may be that the first feature is directly below or obliquely below the second feature, or merely indicates that the first feature has a lower horizontal height than the second feature.

[0040] The following refers to Figures 1 to 7 Describe the geological drilling device provided by the embodiments of the present invention.

[0041] As Figures 1 to 4 shown, it includes an upper support frame 200, a lower support frame 210, an upper drilling assembly 300, a lower drilling assembly 400, and a driving assembly (not labeled in the drawings); the upper drilling assembly 300 is used to drill and store the core 120; the lower drilling assembly 400 is used to drill, store, and fix the drilled core 120; the upper drilling assembly 300 and the lower drilling assembly 400 are coaxially arranged, and the driving assembly is used to provide power to the upper drilling assembly 300 and the lower drilling assembly 400, and transport the core 120 to the ground.

[0042] During construction operations, the upper drilling assembly 300 is arranged on the ground above the rock formation and supported by the upper support frame 200, and the lower drilling assembly 400 is arranged in the tunnel 110 below the rock formation and supported by the lower support frame 210.

[0043] Lower the upper drilling assembly 300 into the rock and soil layer 100, and raise the lower drilling assembly 400 into the rock and soil layer 100; after the lower drilling assembly 400 drills a certain distance, stop rotating and reverse by a certain angle, and clamp and fix the core 120; the upper drilling assembly 300 continues to drill downward, and the core 120 is stored inside the upper drilling assembly 300 and the lower drilling assembly 400; when the upper drilling assembly 300 and the lower drilling assembly 400 separate the core 120 from the rock and soil layer 100, the driving assembly moves the upper drilling assembly 300, the lower drilling assembly 400 and the core 120 upward together until they are sent out of the rock and soil layer 100.

[0044] The upper drilling assembly 300 includes an upper extension pipe 310 and an upper cutting tool 320. The upper extension pipe 310 can store the cut core 120, and the upper cutting tool 320 can cut the rock and soil layer 100.

[0045] The upper extension pipe 310 has an upper end and a lower end. The upper end is provided with internal threads, and the lower end is provided with external threads. The upper cutting tool 320 is threadedly connected to the upper extension pipe 310.

[0046] The number of the upper extension pipes 310 is at least one. When the number of the upper extension pipes 310 is greater than one, the multiple upper extension pipes 310 are threadedly connected to each other.

[0047] The driving assembly can drive the upper extension pipe 310 to rotate. The rotation of the upper extension pipe 310 drives the upper cutting tool 320 to rotate, and the rotation of the upper cutting tool 320 can cut the rock and soil layer 100. While the driving assembly rotates the upper drilling assembly 300, it also moves the upper drilling assembly 300 downward. When the drilling depth is greater than the length of the upper extension pipe 310, the multiple upper extension pipes 310 are threadedly connected to increase the drilling depth.

[0048] By setting the upper drilling assembly 300 and the lower drilling assembly 400 to perform opposite drilling operations, the construction efficiency is increased; the driving assembly sends the cut core 120 to the ground for centralized processing, reducing the construction cost and increasing the safety factor.

[0049] In one embodiment, as Figure 3 shown, it further includes a positioning rod 220, and the positioning rod 220 is used to keep the upper drilling assembly 300 and the lower drilling assembly 400 coaxial.

[0050] Before the construction operation, first drill a through hole from above the rock and soil layer 100 into the tunnel 110, pass the positioning rod 220 through this through hole into the rock and soil layer 100, and set the positions of the upper drilling assembly 300 and the lower drilling assembly 400 according to the axis of the positioning rod 220 to keep the upper drilling assembly 300 and the lower drilling assembly 400 coaxial.

[0051] A positioning rod 220 is provided to keep the upper drilling assembly 300 and the lower drilling assembly 400 coaxial, reducing the error of the drilling operation.

[0052] In one embodiment, as Figure 4 shown, the drive assembly includes a first drive unit 500. The first drive unit 500 is used to drive the upper drilling assembly 300 to rotate, and the first drive unit 500 is arranged on the upper support frame 200.

[0053] The first drive unit 500 includes a first drive motor 510, a first transmission belt 520 and a first rotating ring 530.

[0054] The first drive motor 510 is in transmission connection with the first rotating ring 530 through the first transmission belt 520. When the first drive motor 510 rotates, it can drive the first rotating ring 530 to rotate. A spline connection is provided between the first rotating ring 530 and the upper extension pipe 310, so that when the first rotating ring 530 rotates, it can drive the upper extension pipe 310 to rotate, and the first rotating ring 530 and the upper extension pipe 310 can slide axially.

[0055] In some embodiments, the first drive unit 500 includes a third drive motor (not shown in the drawings), a first gear (not shown in the drawings) and a first toothed ring (not shown in the drawings).

[0056] The output shaft of the third drive motor is fixedly connected to the first gear. The first gear meshes with the first toothed ring. The first toothed ring and the upper extension pipe 310 are in spline fit and the upper extension pipe 310 can slide axially.

[0057] In one embodiment, as Figure 4 shown, the drive assembly includes a first telescopic rod body 540. The first telescopic rod body 540 can provide a downward feeding force for the upper drilling assembly 300 to cut the core 120.

[0058] The first telescopic rod body 540 is arranged on the upper support frame 200 and is in contact with the upper extension pipe 310.

[0059] During use, when the first telescopic rod body 540 extends, it can apply a downward feeding force to the upper extension pipe 310, enabling the upper extension pipe 310 to continuously cut the rock and soil layer 100 downward, increasing the construction efficiency.

[0060] In one embodiment, as Figures 4 to 7As shown, the lower drilling assembly 400 includes a lower extension pipe 410 and a lower cutting tool 420. The lower extension pipe 410 can store and fix the core 120, and the lower cutting tool 420 can cut the rock and soil layer 100. The lower extension pipe 410 has a first end and a second end. The first end is provided with an internal thread, and the second end is provided with an external thread. The lower cutting tool 420 is threadedly connected to the lower extension pipe 410. A clamping rack 430 is provided on the outer wall of the lower extension pipe 410, and the clamping rack 430 is used to limit the lower extension pipe 410. The number of the lower extension pipes 410 is at least one. When the number of the lower extension pipes 410 is greater than one, the multiple lower extension pipes 410 are threadedly connected to each other.

[0061] A clamping slider (not shown in the drawings) is provided. The clamping slider has a first mating position and a second mating position. When the clamping slider is in the first mating position, the clamping slider meshes with the clamping rack 430, and the clamping slider is in contact with the lower support frame 210. The clamping slider can limit the displacement of the lower extension pipe 410 and prevent the lower extension pipe 410 from falling. When the clamping slider is in the second mating position, the lower extension pipe 410 can move downward or upward.

[0062] When it is necessary to threadedly connect the lower extension pipe 410 and the lower cutting tool 420, first place the clamping slider in the first mating position, and then threadedly connect the lower extension pipe 410 and the lower cutting tool 420, improving the stability and safety of the device.

[0063] In one embodiment, as Figures 1 to 6 shown, the lower drilling assembly 400 is provided with a clamping wheel 450 for fixing the core 120. An inner groove 460 is provided on the inner wall of the lower extension pipe 410. A first slideway 470 is provided on the inner groove 460. The direction of the first slideway 470 forms an angle with the tangent of the inner wall of the lower extension pipe 410. The clamping wheel 450 is in sliding fit with the first slideway 470. The first slideway 470 is provided with a first limit position and a second limit position.

[0064] When the lower drilling assembly 400 rotates forward to cut the core 120, the clamping wheel 450 is at the first limit position of the first slideway 470, and the clamping wheel 450 is located inside the inner groove 460. When the lower drilling assembly 400 rotates backward or has a tendency to rotate backward, the clamping wheel 450 moves to the second limit position, and the clamping wheel 450 extends out of the inner groove 460. The clamping wheel 450 has a clamping effect on the core 120.

[0065] Multiple groups of the clamping wheel 450, the inner groove 460 and the first slideway 470 can be evenly arranged on the inner wall of the lower extension pipe 410, so that the core 120 receives a greater and more uniform clamping force, and the core 120 is better preserved.

[0066] In one embodiment, asFigures 3 to 4 As shown, the driving assembly includes a second driving unit 600. The second driving unit 600 is used to drive the lower drilling assembly 400 to rotate and fix the core 120. The second driving unit 600 is arranged on the lower support frame 210 and includes a second driving motor 610, a second transmission belt 620 and a second swivel ring 630.

[0067] The second driving motor 610 is in transmission connection with the second swivel ring 630 through the second transmission belt 620. The rotation of the second driving motor 610 can drive the second swivel ring 630 to rotate. The second swivel ring 630 is connected to the lower extension pipe 410 through splines, so that the rotation of the second swivel ring 630 can drive the lower extension pipe 410 to rotate, and the lower extension pipe 410 can axially slide.

[0068] The second driving motor 610 can make the lower extension pipe 410 rotate forward or backward. When the lower extension pipe 410 rotates forward, the lower extension pipe 410 can cut the core 120. When the lower extension pipe 410 rotates backward, the lower extension pipe 410 can clamp the core 120.

[0069] In one embodiment, the second driving unit 600 includes a fourth driving motor (not shown in the drawings), a second gear (not shown in the drawings) and a second toothed ring (not shown in the drawings).

[0070] The output shaft of the fourth driving motor is fixedly connected to the second gear. The second gear meshes with the second toothed ring. The second toothed ring is in spline fit with the lower extension pipe 410 and the lower extension pipe 410 can axially slide.

[0071] In one embodiment, as Figure 4 shown, it includes a shielding ring 640. The shielding ring 640 is arranged above the second swivel ring 630 to block sundries from entering the contact surface between the second transmission belt 620 and the second swivel ring 630, protect the contact surface between the second swivel ring 630 and the second transmission belt 620, and reduce the wear of the device.

[0072] In one embodiment, as Figure 4 shown, the driving assembly includes a second telescopic rod body 650. The second telescopic rod body 650 can provide an upward feeding force for the lower drilling assembly 400 to cut the core 120 and can convey the core 120 out of the rock and soil layer 100.

[0073] The second telescopic rod body 650 is arranged on the lower support frame 210 and is in contact with the lower extension pipe 410.

[0074] In use, the second telescopic rod body 650 conveys the upper extension pipe 310, the lower extension pipe 410 and the core 120 to the outside of the rock and soil layer 100, and the core 120 stored in the upper extension pipe 310 and the lower extension pipe 410 can be used as a rock and soil sample for experimental observation.

[0075] The technical features of the above embodiments can be combined arbitrarily. For the sake of concise description, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, it should be considered as the scope described in this specification.

[0076] The above-described embodiments merely represent several implementation manners of the present invention, and the description thereof is relatively specific and detailed, but it should not be construed as a limitation on the scope of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present invention, several modifications and improvements can still be made, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims

1. A geological drilling device, characterized in that: It includes: an upper drilling assembly for drilling and storing core; A lower drilling assembly for drilling, storing and securing the drilled core; The upper drilling assembly is coaxially arranged with the lower drilling assembly; A driving assembly, used to provide power to the upper drilling assembly and the lower drilling assembly, and to transport the core to the ground; The upper drilling assembly includes an upper extension tube and an upper cutter, wherein the upper extension tube is capable of storing cut cores, and the upper cutter is capable of cutting rock and soil layers; The upper extension tube is provided with an upper end portion and a lower end portion, the upper end portion is provided with an internal thread, the lower end portion is provided with an external thread, and the upper cutting tool is threadedly connected to the upper extension tube; The number of the upper extension tube is at least one, and when the number of the upper extension tube is greater than one, the plurality of upper extension tubes are connected by threads; The lower drilling assembly includes a lower extension tube and a lower cutter, wherein the lower extension tube can store cut cores, and the lower cutter can cut rock and soil layers; The lower drilling assembly is provided with a clamping wheel, and the clamping wheel is used to fix the drilled core; An inner groove is provided on the inner wall of the lower extension tube, a first slideway is provided on the inner groove, the first slideway is provided in a direction with an angle with a tangent line of the inner wall of the lower extension tube, and the clamping wheel is slidably matched with the first slideway; The first slide is provided with a first extreme position and a second extreme position; when the lower drilling assembly rotates forward, the rock core is cut, and the clamping wheel is at the first extreme position of the first slide, and the clamping wheel is located inside the inner groove; when the lower drilling assembly rotates reversely or has a tendency to rotate reversely, the clamping wheel moves to the second extreme position, and the clamping wheel extends out of the inner groove, and the clamping wheel has a clamping effect on the rock core; during construction operations, the upper drilling assembly is arranged on the ground above the rock layer and is supported by the upper support frame, and the lower drilling assembly is arranged in the tunnel below the rock layer and is supported by the lower support frame; the upper drilling assembly is made to drill downward into the rock and soil layer, and the lower drilling assembly is made to drill upward into the rock and soil layer.

2. The geological drilling device according to claim 1, characterized in that: It also includes a positioning rod, which is used to keep the upper drilling assembly and the lower drilling assembly coaxial.

3. The geological drilling device according to claim 1, characterized in that: The driving assembly comprises a first driving unit, and the first driving unit is used to drive the upper drilling assembly to rotate.

4. The geological drilling device according to claim 3, characterized in that: The driving assembly comprises a first telescopic rod body, and the first telescopic rod body can provide a downward feeding force for the upper drilling assembly to cut the rock core downward.

5. The geological drilling device according to claim 1, characterized in that: The lower extension tube is provided with a first end and a second end, the first end is provided with an internal thread, the second end is provided with an external thread, and the lower cutting tool is threadedly connected to the lower extension tube; A clamping rack is provided on the outer wall of the lower extension tube, and the clamping rack is used to fix the lower extension tube; The number of the lower extension tube is at least one. When the number of the lower extension tube is greater than one, the lower extension tubes are connected to each other through threads.

6. The geological drilling device according to claim 1, characterized in that: The driving assembly comprises a second driving unit, and the second driving unit is used for driving the lower drilling assembly to rotate and fix the core.

7. The geological drilling device according to claim 6, characterized in that: It also includes a blocking ring, which is used to prevent debris from entering the second driving unit.

8. The geological drilling device according to claim 7, characterized in that: The driving assembly comprises a second telescopic rod body, and the second telescopic rod body can provide an upward feeding force for the lower drilling assembly to cut the rock core, and can transport the rock core to the ground.

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