Mine engineering drilling rig

Abstract

The invention discloses a mine engineering drilling rig which comprises a drill rod, a fixedly connected drill bit is arranged at the lower end of the drill rod, an integrated pipe cavity is formed in the drill rod and the drill bit, a sliding column and a power telescopic rod are arranged at the bottom of the pipe cavity, and the telescopic end of the power telescopic rod is fixedly connected with the top end of the sliding column; a horizontal sensor is arranged on the upper portion of the power telescopic rod of the pipe cavity and provided with a wireless signal transmitter. The drill bit is provided with an ejector rod capable of sliding in an inclined mode, the ejector rod is provided with a limiting protruding block matched with the drill bit in a limiting mode, the outer end of the ejector rod is provided with a hemispherical ejector head, and the inner end of the ejector rod is located in the pipe cavity and matched with the inclined face sliding groove in an extruding mode. According to the mine engineering drilling device, the multiple ejector rods are additionally arranged in the drill bit, active deviation correction can be carried out, the deviation of the drilling direction can be adjusted more rapidly and efficiently, fine cutting and crushing can be carried out on hard ore rock layers, the drilling efficiency is improved, and the practical value and the popularization value are quite high.

Description

Technical Field

[0001] The invention relates to the technical field of mining engineering drilling devices, in particular to a mining engineering drilling device. Background Art

[0002] At present, when using drilling equipment for mining engineering drilling operations, due to vertical drilling, affected by construction conditions, coal and rock lithology, etc., the constructed boreholes often deviate from the designed positions. How to ensure that the boreholes are constructed according to the designed angle and orientation has become a key factor restricting the quality of drilling construction.

[0003] To this end, the scheme CN207263946U discloses a mining geological drilling anti-deviation device. When the drill bit contacts the hard rock layer and axially deviates, the horizontal sensor detects the angle and direction of the deviation, and transmits it to the host through the wireless signal transmitter. The host adjusts the speed of the motor and then adjusts the drill bit to work axially. However, this is a passive adjustment method. When encountering thicker hard rock layers or more serious deviations, it is difficult to adjust quickly. This scheme cannot actively correct the deviation, and there is a lack of design for hard rock layers that are particularly broken. The drilling efficiency is tested. Therefore, this scheme is insufficient in the application of drilling operations in harder mineral rock layers. Summary of the invention

[0004] The purpose of the present invention is to provide a mining engineering drilling device to solve the problems raised in the above background technology.

[0005] In order to solve the above technical problems, the present invention provides the following technical solutions:

[0006] The present invention discloses a mining engineering drilling device, comprising a drill rod, a drill bit fixedly connected to the lower end of the drill rod, an integrated tube cavity provided in the drill rod and the drill bit, a sliding column and a power telescopic rod provided at the bottom of the tube cavity, the telescopic end of the power telescopic rod being fixedly connected to the top of the sliding column; a level sensor provided at the upper part of the power telescopic rod of the tube cavity, the level sensor provided with a wireless signal transmitter; an inclined sliding groove provided at the side of the sliding column;

[0007] The drill bit is provided with a tiltable and slidable push rod, the push rod is provided with a limiting convex block that matches with the drill bit, the outer end of the push rod is provided with a hemispherical top head, the inner end of the push rod is located in the tube cavity and is squeezed and matched with the inclined sliding groove.

[0008] As an improvement, there are three push rods, one of which has a hemispherical top facing downward, and the other two push rods are symmetrically distributed with hemispherical tops facing upward. The downward push rod forms an angle with the push rods on both sides facing upward in the horizontal plane; the sliding column can squeeze the push rod downward or upward.

[0009] As an improvement, a motor for controlling the rotation is provided at the top of the drill rod.

[0010] As an improvement, the power telescopic rod, the horizontal sensor and the drill rod are fixedly connected.

[0011] As an improvement, the power telescopic rod is an electric telescopic rod or a hydraulic rod.

[0012] As an improvement, the hemispherical top is made of diamond.

[0013] As an improvement, the downward push rod and the push rods on both sides facing upward form an angle of 90 degrees in the horizontal plane.

[0014] As an improvement, the upper part of the slide column is provided with an inclined sliding groove to squeeze the push rod downward, and the lower part is provided with two inclined sliding grooves to squeeze the push rod upward.

[0015] As an improvement, the power telescopic rod, the wireless signal transmitter, and the motor are all electrically connected to the host.

[0016] The advantages of the present invention compared with the prior art are:

[0017] When the drill bit contacts a harder rock layer and causes axial deviation, the horizontal sensor detects the angle and direction of the deviation and transmits it to the main unit through a wireless signal transmitter. The main unit adjusts the motor speed to decrease, and then whenever the push rod rotates to the offset side of the drill bit and coincides with the offset surface, the power telescopic rod is started to extend and then retract. The inclined slide groove of the sliding column pushes the push rod down and then rises up, so that the hemispherical top of the push rod quickly extends out of the drill bit and then retracts. In this process, the push rod pushes the drill bit back in the opposite direction of the deviation. After repeating the above actions several times, when the main unit receives the signal that the horizontal sensor has restored the level, the retracted power telescopic rod is turned off and the acceleration motor can continue normal drilling operations.

[0018] When the drill bit contacts a harder mineral rock layer and causes axial deviation, the drill bit position returns to normal after active deviation correction using the above implementation method. Then the power telescopic rod is started to pull up the sliding column, and the two inclined slide grooves at the bottom squeeze the push rod upward, so that the hemispherical tops of the two push rods facing upward extend out of the drill bit, thereby finely cutting and crushing the harder mineral rock layer and improving drilling efficiency.

[0019] The mining engineering drilling device has multiple push rods added to the drill bit, which can not only perform active deviation correction to achieve faster and more efficient adjustment of the drilling direction deviation, but also perform fine cutting and crushing on harder mineral and rock layers to improve drilling efficiency. It has high practical value and promotion value. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings listed below are only some structural schematic diagrams of the present invention, not all of them.

[0021] Figure 1 It is a structural schematic diagram of a mining engineering drilling device of the present invention.

[0022] Figure 2 This is a bottom cross-sectional view of a mining engineering drilling device of the present invention. Figure 1 .

[0023] Figure 3 This is a bottom cross-sectional view of a mining engineering drilling device of the present invention. Figure 2 .

[0024] Figure 4 The present invention is a schematic structural diagram of a sliding column of a mining engineering drilling device.

[0025] Figure 5 The present invention is a schematic structural diagram of a mandrel of a mining engineering drilling device.

[0026] Figure 6 It is an overall cross-sectional view of a mining engineering drilling device of the present invention.

[0027] Reference numerals:

[0028] Drill rod 1; drill bit 2; tube cavity 3; slide column 4; power telescopic rod 5; level sensor 6; wireless signal transmitter 7; mandrel 8; limit convex block 9; hemispherical mandrel 10; inclined slide groove 11; motor 12; DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0030] In the description of the embodiments of the present invention, it should be noted that if the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc. appear, the indicated orientation or position relationship is based on the orientation or position relationship shown in the accompanying drawings, or is the orientation or position relationship in which the product of the invention is usually placed when used. It is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0031] In addition, if the terms "first", "second", "third", etc. appear, they are only used to distinguish the description and cannot be understood as indicating or implying relative importance. If the terms "horizontal", "vertical", "overhanging", etc. appear, it does not mean that the components are required to be absolutely horizontal or overhanging, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", and it does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0032] In the description of the embodiments of the present invention, if the terms "multiple" or "several" appear, they represent at least two.

[0033] In the description of the embodiments of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal connection of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0034] This embodiment combines the attached Figures 1 to 6 , a mining engineering drilling device is described in detail.

[0035] This embodiment provides a mining engineering drilling device, including a drill rod 1, such as Figure 1 As shown, the lower end of the drill rod 1 is provided with a fixedly connected drill bit 2. Figure 6 As shown, the drill rod 1 and the drill bit 2 are provided with an integrated tubular cavity 3. Figure 3 As shown, a slide column 4 and a power telescopic rod 5 are provided at the bottom of the tubular cavity 3. The main body of the slide column 4 is located in the drill bit 2. The power telescopic rod 5 is immediately arranged on the upper part of the slide column 4. The telescopic end of the power telescopic rod 5 is fixedly connected to the top of the slide column 4. A horizontal sensor 6 is provided on the upper part of the power telescopic rod 5 of the tubular cavity 3. The horizontal sensor 6 is arranged close to the power telescopic rod 5, which is conducive to detecting the azimuth deviation of the drill bit 2. The horizontal sensor 6 is provided with a wireless signal transmitter 7. The horizontal sensor 6 senses the angle and direction with the horizontal plane, converts it into an electrical signal and sends it to the wireless signal transmitter 7. Figure 4 As shown, the side of the slide column 4 is provided with an inclined slide groove 11; the inclined slide groove 11 has an extended vertical slide groove;

[0036] like Figure 2 As shown, the drill bit 2 is provided with a tiltable and slidable push rod 8, and the tilted setting is conducive to pushing from the vertical direction. The push rod 8 is provided with a limiting protrusion 9 that cooperates with the drill bit 2. The limiting protrusion 9 limits the moving range of the push rod 8 to avoid excessive advance and retreat. The outer end of the push rod 8 is provided with a hemispherical head 10, which is not easy to break. Figure 2 As shown, the inner end of the push rod 8 is located in the tubular cavity 3 and is squeezed and matched with the inclined sliding groove 11. The inclined sliding groove 11 moves straight in the vertical direction with the sliding column 4, and squeezes the inclined surface of the inner end of the push rod 8 with the inclined surface, so that the push rod 8 can move laterally.

[0037] like Figure 2 , 3 As shown, there are three push rods 8, one of which has a hemispherical top 10 facing downward, and the other two push rods 8 are symmetrically distributed and have hemispherical tops 10 facing upward. The push rods 8 are divided into downward and upward directions, and can operate independently in two directions to achieve two different functions. The downward push rod 8 forms an angle with the push rods 8 on both sides facing upward in the horizontal plane; from a top view, the downward push rod is located between the two upward push rods 8, as shown in FIG. Figure 2 , 3 As shown, the sliding column 4 can press the push rod 8 downward or upward, and can press the push rod 8 in different directions downward or upward.

[0038] like Figure 1 , 6 As shown, a motor 12 for controlling rotation is provided at the top of the drill rod 1. The rotating shaft of the motor 12 can be directly fixed or connected to the top of the drill rod 1 in a transmission manner.

[0039] The power telescopic rod 5 and the horizontal sensor 6 are fixedly connected to the drill rod 1 .

[0040] The power telescopic rod 5 is an electric telescopic rod or a hydraulic rod.

[0041] The hemispherical plug 10 is made of diamond.

[0042] The downward push rod 8 and the push rods 8 on both sides that face upward form a 90-degree angle in the horizontal plane. The 90-degree angle makes the two push rods 8 that face upward be distributed at 180 degrees, and when the drill bit 2 is extended and rotated, the extrusion force on both sides of the drill bit 2 is uniform.

[0043] like Figure 2 , 3 As shown, the upper part of the slide column 4 is provided with an inclined sliding groove 11 to press the push rod 8 downward, and the lower part is provided with two inclined sliding grooves 11 to press the push rod 8 upward. The slide column 4 moves downward to press the push rod 8 facing downward, and the slide column 4 moves upward to press the push rod 8 facing upward.

[0044] The power telescopic rod 5, the wireless signal transmitter 7, and the motor 12 are all electrically connected to the host. The host is an industrial control host in the prior art, with a processor, a control switch, etc., which can process the signal of the wireless signal transmitter 7 and display it visually, and can control the switch, power direction and speed of the power telescopic rod 5 and the motor 12. The industrial control host also records the position of each push rod 8, and can perform comprehensive calculations based on the signal and the switch, power direction and speed of the power telescopic rod 5 and the motor 12.

[0045] In the specific implementation, by operating the external host, the motor 12 is started to drive the drill rod 1 and the drill bit 2 to rotate to perform the drilling operation. During normal drilling, the hemispherical head 10 of the top rod 8 is squeezed back into the drill bit 2 by the external ore layer (such as Figure 3 ), if the hemispherical head 10 is set upward, the push rod 8 will naturally retract.

[0046] When the drill bit 2 contacts a harder mineral rock layer and axially deviates, the horizontal sensor 6 detects the angle and direction of the deviation and transmits it to the main unit through the wireless signal transmitter 7. The main unit adjusts the speed of the motor 9 to decrease, and then whenever the push rod 8 turns to the offset side of the drill bit 2 and coincides with the offset surface, the power telescopic rod 5 is started to extend and then retract, and the inclined slide groove 11 of the slide column 4 pushes the push rod 8 down and then rises up, so that the hemispherical head 10 of the push rod 8 quickly extends out of the drill bit 2 and then retracts. In this process, the push rod 8 pushes the drill bit 2 back in the opposite direction of the deviation. After repeating the above actions several times, when the main unit receives the signal that the horizontal sensor 6 has restored the level, the retracted power telescopic rod 5 is turned off, and the acceleration motor 9 can continue the normal drilling operation.

[0047] When the drill bit 2 contacts a harder mineral rock layer and causes axial deviation, the drill bit position returns to normal after active deviation correction using the above-mentioned implementation method, and then the power telescopic rod 5 is started to pull up the sliding column 4, and the two inclined slide grooves 11 at the bottom squeeze the push rod 8 upward, so that the hemispherical tops 10 of the two upward push rods 8 extend out of the drill bit 2, and the harder mineral rock layer is finely cut and crushed, thereby improving the drilling efficiency.

[0048] The present invention and its embodiments are described above, and such description is not restrictive, and the actual protection scope is not limited thereto. Any changes or substitutions that can be easily thought of by a person skilled in the art within the technical scope disclosed by the present invention should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention shall be based on the protection scope of the claims.

Claims

1. A mining engineering drilling device, characterized in that: The invention comprises a drill rod (1), wherein the lower end of the drill rod (1) is provided with a drill bit (2) fixedly connected thereto, an integrated tubular cavity (3) is provided inside the drill rod (1) and the drill bit (2), a sliding column (4) and a power telescopic rod (5) are provided at the bottom of the tubular cavity (3), and the telescopic end of the power telescopic rod (5) is fixedly connected to the top of the sliding column (4); a level sensor (6) is provided at the upper part of the power telescopic rod (5) of the tubular cavity (3), and the level sensor (6) is provided with a wireless signal transmitter (7); and an inclined sliding groove (11) is provided at the side of the sliding column (4); The drill bit (2) is provided with a tiltable and slidable push rod (8), the push rod (8) is provided with a limiting protrusion (9) that is limitedly matched with the drill bit (2), the outer end of the push rod (8) is provided with a hemispherical push head (10), and the inner end of the push rod (8) is located in the tube cavity (3) and is pressed and matched with the inclined sliding groove (11).

2. A mining engineering drilling device according to claim 1, characterized in that: There are three push rods (8), one of which has a hemispherical top (10) facing downwards, and the other two push rods (8) are symmetrically distributed and have hemispherical tops (10) facing upwards, and the push rod (8) facing downwards forms an angle with the push rods (8) on both sides facing upwards in the horizontal plane; the sliding column (4) can squeeze the push rod (8) downwards or upwards.

3. A mining engineering drilling device according to claim 1, characterized in that: A motor (12) for controlling rotation is provided at the top end of the drill rod (1).

4. A mining engineering drilling device according to claim 1, characterized in that: The power telescopic rod (5), the horizontal sensor (6) and the drill rod (1) are fixedly connected.

5. A mining engineering drilling device according to claim 1, characterized in that: The power telescopic rod (5) is an electric telescopic rod or a hydraulic rod.

6. A mining engineering drilling device according to claim 1, characterized in that: The hemispherical top (10) is made of diamond.

7. A mining engineering drilling device according to claim 2, characterized in that: The downward push rod (8) and the push rods (8) on both sides facing upward form an angle of 90 degrees in the horizontal plane.

8. A mining engineering drilling device according to claim 2, characterized in that: The upper part of the slide column (4) is provided with an inclined sliding groove (11) for pressing the push rod (8) downward, and the lower part is provided with two inclined sliding grooves (11) for pressing the push rod (8) upward.

9. A mining engineering drilling device according to claim 3, characterized in that: The power telescopic rod (5), the wireless signal transmitter (7), and the motor (12) are all electrically connected to the host machine.

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