A kind of intrinsically safe drilling hole orientation instrument for mine use

Abstract

The present invention discloses a mine intrinsically safe drilling rig hole-opening orientation instrument, which includes a fixed guiding device and a drill pipe guiding and detecting device. The fixed guiding device is provided with a fixed seat and a guiding sleeve, and the front end of the drilling rig drill pipe is sleeved in the guiding sleeve. A laser marking instrument is arranged on the fixed seat; the drill pipe guiding and detecting device is provided with a laser marking alignment scale plate and a guiding detection cylinder. The drill pipe guiding and detecting device is positioned and installed with the laser marking instrument through the laser marking alignment scale plate. At least three elastic floating detection components are arranged in the guiding detection cylinder. The front end of the elastic floating detection component is in movable contact with the outer diameter of the drilling rig drill pipe, and a displacement detection device is arranged at the rear end of the elastic floating detection component. The displacement detection device is used to detect the displacement telescopic change amount of the elastic floating detection component, and the displacement detection device is connected to the orientation detection controller. The present invention can precisely guide and position-detect the drill pipe during hole opening, and there will be no large deviation during drilling, and the drilling efficiency is high.

Description

Technical Field

[0001] The present invention relates to the technical field of geological exploration, and particularly to a mine intrinsically safe drill hole orientation instrument. Background Art

[0002] With the popularization and application of fully mechanized coal mining technology in China, in order to ensure safe and efficient mining, a large number of gas drainage holes and water exploration and drainage holes need to be drilled underground in coal mines. To ensure underground safety and a high hole formation rate, the drilling construction must start the hole according to the azimuth angle and inclination angle designed in the drawing and try to ensure that the drill hole follows the designed trajectory.

[0003] However, currently, the drill hole opening generally adopts a test method of looking up a table, measuring the side length, marking the azimuth, and determining the machine position, or directly uses a compass for positioning. The measurement method of looking up a table, measuring the side length, and marking the azimuth to determine the machine position is cumbersome to implement underground, requires repeated measurements, has low work efficiency, and it is difficult for management personnel to supervise and manage, and it is easy to have a large drill hole deviation or even a waste hole situation; while the three-dimensional compass angle measurement is greatly affected by the geomagnetism underground, it is easy to have measurement errors and needs to be repeatedly verified and corrected, which affects the construction efficiency.

[0004] In the prior art, there are also methods of using a laser gyroscope, etc. for drill hole trajectory measurement, which can measure and record parameters such as the inclination angle, azimuth angle, and position in real time during the drilling process, and timely monitor and correct to prevent large drill hole deviations. However, for the method of using a laser gyroscope for measurement, the laser gyroscope equipment has a high cost and complex installation and debugging. Summary of the Invention

[0005] In order to solve the above problems, the purpose of the present invention is to provide a mine intrinsically safe drill hole orientation instrument, the overall cost of the equipment is moderate, it is convenient and accurate to use, can precisely guide and position and detect the drill pipe during hole opening, there will be no large deviation during drilling, the drilling efficiency is high, and it can effectively solve the problems of inaccurate traditional hole opening positioning and difficult operation.

[0006] To achieve the above purpose, the present invention adopts the following technical solutions:

[0007] A mining intrinsically safe drilling rig hole orientation instrument comprises a fixed guide device and a drill rod guidance detection device, wherein the fixed guide device is provided with a fixed seat and a guide sleeve, the front end of the drill rod of the drilling rig is sleeved in the guide sleeve, and the fixed seat is provided with a laser marking instrument; the drill rod guidance detection device is provided with a laser marking alignment scale plate and a guide detection cylinder, the drill rod guidance detection device is positioned and installed with the laser marking instrument through the laser marking alignment scale plate, at least three elastic floating detection components are provided in the guide detection cylinder, the front end of the elastic floating detection component is in active contact with the outer diameter of the drill rod of the drilling rig, the rear end of the elastic floating detection component is provided with a displacement detection device, the displacement detection device is used to detect the displacement and expansion change of the elastic floating detection component, and the displacement detection device is connected to a directional detection controller.

[0008] Furthermore, the elastic floating detection component includes a mounting base, a guide floating rod, a spring and a measuring head. The guide floating rod is sleeved in the mounting base, and the measuring head is installed at the front end of the guide floating rod. The measuring head is driven by the guide floating rod to make movable contact with the outer diameter of the drill pipe of the drilling rig through the push of the spring. A displacement detection rod is provided at the rear end of the guide floating rod, and a detection sensor for measuring the moving distance of the displacement detection rod is provided in the displacement detection device.

[0009] Furthermore, a guide bearing is provided between the mounting base and the guide floating rod.

[0010] Furthermore, the detection sensor includes a grating ruler or a laser rangefinder.

[0011] Furthermore, the drill rod guide detection device is arranged in a measuring frame, and adjustable support rods are arranged on both sides of the measuring frame, and adjustable foot pads are arranged at the bottom of the adjustable support rods.

[0012] Furthermore, the fixing seat is arranged on a fixing support frame, and a make-shift space is provided in front of the fixing support frame for facilitating drilling, slag removal and auxiliary processing.

[0013] Furthermore, the directional detection controller is fixed on the drill rod of the drilling rig through a connecting ring.

[0014] Furthermore, the orientation detection controller is provided with a control circuit, a three-axis gyroscope sensor and a three-axis accelerometer.

[0015] The present invention has the following beneficial effects:

[0016] 1. By setting a fixed guiding device and a drill pipe guiding and detecting device, the present invention can precisely guide and position-detect the drill pipe during hole opening. An elastic floating detecting component capable of real-time monitoring whether the drill pipe deviates is arranged in the drill pipe guiding and detecting device. Through monitoring and feedback, it is convenient to timely indicate and correct the direction of the drill pipe, and there will be no large deviation during drilling, with high drilling efficiency, and it can effectively solve the problems of inaccurate traditional hole opening positioning and difficult operation.

[0017] 2. At least three elastic floating detecting components are arranged in the drill pipe guiding and detecting device of the present invention. A displacement detecting device is arranged at the rear end of the elastic floating detecting component. Through the displacement detecting device, the displacement telescopic change amount of the elastic floating detecting component can be real-time detected. Through calculation and feedback by the directional detecting controller, it is convenient to timely indicate and correct the direction of the drill pipe, with convenient installation and debugging and accurate and reliable positioning detection.

[0018] 3. The drill pipe guiding and detecting device of the present invention is installed on the adjusting support rod through a measuring frame, and the measuring head at the front end of the guiding floating rod in the elastic floating detecting component is in movable contact with the outer diameter of the drill pipe of the drilling rig. Compared with the prior art in which the measuring sensor is directly installed on the drill pipe, it can effectively eliminate the error caused by the vibration of the drill pipe, and the detection is more accurate and reliable.

[0019] 4. The detection sensor in the present invention adopts a grating ruler or a laser rangefinder, the cost of the measuring instrument is lower than that of adopting a laser gyroscope, etc., and the control circuit design is more concise and reliable, and the operation and use are more convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 is the front view schematic diagram of the mine intrinsically safe type drilling rig hole opening orientator of the present invention;

[0021] Figure 2 is the three-dimensional schematic diagram of the mine intrinsically safe type drilling rig hole opening orientator of the present invention

[0022] Figure 3 is the front view schematic diagram of the elastic floating detecting component of the present invention;

[0023] Figure 4 is the three-dimensional schematic diagram of the elastic floating detecting component of the present invention;

[0024] Figure 5 is the cross-sectional view schematic diagram of the elastic floating detecting component of the present invention.

[0025] DESCRIPTION OF THE REFERENCE NUMERALS:

[0026] 1. Fixed guiding device; 11. Fixed seat; 12. Guide sleeve; 13. Fixed support frame; 2. Drill pipe guiding and detecting device; 21. Laser marking alignment scale plate; 22. Guiding detection cylinder; 3. Laser marking instrument; 4. Elastic floating detection component; 41. Installation base; 42. Guiding floating rod; 43. Spring; 44. Measuring head; 45. Displacement detection rod; 46. Guiding bearing; 5. Displacement detection device; 51. Detection sensor; 6. Directional detection controller; 7. Measuring frame; 8. Adjusting support rod; 9. Connecting ring; 10. Drill pipe of drill rig. Detailed implementation mode

[0027] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments:

[0028] See Figures 1-5 As shown, a intrinsically safe mine drill hole orientation instrument includes a fixed guiding device 1 and a drill pipe guiding and detecting device 2. The fixed guiding device 1 is provided with a fixed seat 11 and a guide sleeve 12. The front end of the drill pipe 10 of the drill rig is sleeved in the guide sleeve 12, and a laser marking instrument 3 is provided on the fixed seat 11. The drill pipe guiding and detecting device 2 is provided with a laser marking alignment scale plate 21 and a guiding detection cylinder 22. The drill pipe guiding and detecting device 2 is positioned and installed with the laser marking instrument 3 through the laser marking alignment scale plate 21. At least three elastic floating detection components 4 are provided in the guiding detection cylinder 22. The front end of the elastic floating detection component 4 is in movable contact with the outer diameter of the drill pipe 10 of the drill rig. A displacement detection device 5 is provided at the rear end of the elastic floating detection component 4. The displacement detection device 5 is used to detect the displacement telescopic change amount of the elastic floating detection component 4, and the displacement detection device 5 is connected to a directional detection controller 6.

[0029] The elastic floating detection component 4 includes an installation base 41, a guiding floating rod 42, a spring 43 and a measuring head 44. The guiding floating rod 42 is sleeved in the installation base 41. The measuring head 44 is installed at the front end of the guiding floating rod 42. Driven by the spring 43, the measuring head 44 is driven by the guiding floating rod 42 to be in movable contact with the outer diameter of the drill pipe 10 of the drill rig. A displacement detection rod 45 is provided at the rear end of the guiding floating rod 42. A detection sensor 51 for measuring the moving distance of the displacement detection rod 45 is provided in the displacement detection device 5. A guiding bearing 46 is provided between the installation base 41 and the guiding floating rod 42. The detection sensor 51 includes a grating ruler or a laser rangefinder, etc.

[0030] The drill pipe guiding and detecting device 2 is arranged in a measuring frame 7. Adjusting support rods 8 are provided on both sides of the measuring frame 7, and adjustable foot pads are provided at the bottoms of the adjusting support rods 8.

[0031] The fixing seat 11 is arranged on a fixing support frame 13 , and a space is arranged in front of the fixing support frame 13 for drilling, slag removal and auxiliary processing.

[0032] The directional detection controller 6 is fixed on the drill rod 10 of the drilling rig through a connecting ring 9. A control circuit, a three-axis gyroscope sensor and a three-axis accelerometer are provided in the directional detection controller 6. The three-axis gyroscope sensor, the three-axis accelerometer and the displacement detection device 5 facilitate subsequent expansion to provide a more complete detection function.

[0033] The packaging structure of the laser marking instrument 3, the elastic floating detection component 4, the displacement detection device 5 and the directional detection controller 6 meets the safety requirements of explosion-proof and intrinsically safe mining.

[0034] When the present invention is used, the fixed seat 11 in the fixed guide device 1 is installed at the drilling position through the fixed support frame 13, the front end of the drill rod 10 of the drilling rig is sleeved in the guide sleeve 12, and the drill rod guide detection device 2 is also sleeved in the drill rod 10 of the drilling rig, and the laser marking instrument 3 is used to align the scale plate 21 and the laser marking instrument 3, and the position of the drill rod guide detection device 2 is adjusted by adjusting the support rod 8 to perform initial positioning and installation; after the initial positioning and installation, the drilling rig can be started to drill, and the drill rod 10 of the drilling rig is in the process of drilling, and the guide floating rod 42 in the three elastic floating detection components 4 drives the measuring head 44 to movably contact with the outer diameter of the drill rod 10, and the offset of the drill rod 10 drives the displacement detection rod 45 to follow and move, and the displacement distance can be detected and calculated by the displacement detection device 5 and the directional detection controller 6, and the drill rod direction can be timely indicated and corrected according to the displacement distance value detected and calculated, to ensure that there will be no large deviation during drilling, and it is not easy to have a waste hole, and the overall drilling efficiency is high.

[0035] The above description is only a specific implementation mode of the present invention, and does not limit the patent scope of the present invention. Any equivalent structural transformation made by using the contents of the present invention description and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A mine intrinsically safe drilling rig opening orientation instrument, characterized in that: The invention comprises a fixed guide device (1) and a drill rod guide detection device (2), wherein the fixed guide device (1) is provided with a fixed seat (11) and a guide sleeve (12), the front end of a drill rod (10) of a drilling rig is sleeved in the guide sleeve (12), and a laser marking instrument (3) is provided on the fixed seat (11); the drill rod guide detection device (2) is provided with a laser marking alignment scale plate (21) and a guide detection tube (22), and the drill rod guide detection device (2) detects the position of the drill rod through the laser marking alignment scale plate (21). ) is positioned and installed with the laser marking instrument (3), at least three elastic floating detection components (4) are arranged in the guide detection cylinder (22), the front end of the elastic floating detection component (4) is in active contact with the outer diameter of the drilling rig drill pipe (10), and the rear end of the elastic floating detection component (4) is provided with a displacement detection device (5), the displacement detection device (5) is used to detect the displacement and expansion change of the elastic floating detection component (4), and the displacement detection device (5) is connected to the directional detection controller (6).

2. The mine intrinsically safe type drilling rig hole opening orientation instrument according to claim 1, characterized in that: The elastic floating detection component (4) comprises a mounting base (41), a guide floating rod (42), a spring (43) and a measuring head (44); the guide floating rod (42) is sleeved in the mounting base (41); the measuring head (44) is mounted on the front end of the guide floating rod (42); the guide floating rod (42) is driven by the spring (43) to bring the measuring head (44) into active contact with the outer diameter of the drilling rig drill pipe (10); a displacement detection rod (45) is provided at the rear end of the guide floating rod (42); and a detection sensor (51) for measuring the moving distance of the displacement detection rod (45) is provided in the displacement detection device (5).

3. The borehole opening orientation instrument for mine intrinsically safe drill according to claim 2, characterized in that: A guide bearing (46) is provided between the mounting base (41) and the guide floating rod (42).

4. The mine intrinsically safe type drilling rig hole opening orientation instrument according to claim 2, characterized in that: The detection sensor (51) comprises a grating ruler or a laser rangefinder.

5. The mine intrinsically safe type drill hole orientation instrument according to claim 1, characterized in that: The drill rod guide detection device (2) is arranged in a measuring frame (7), and adjustment support rods (8) are arranged on both sides of the measuring frame (7), and adjustable foot pads are arranged at the bottom of the adjustment support rods (8).

6. The mine intrinsically safe type drill hole orientation instrument according to claim 1, characterized in that: The fixing seat (11) is arranged on a fixing support frame (13), and a clearance space is provided in front of the fixing support frame (13) for facilitating drilling, slag removal and auxiliary processing.

7. A mine intrinsically safe drill hole orientation instrument according to claim 1, characterized in that: The directional detection controller (6) is fixed on the drilling rig drill rod (10) via a connecting ring (9).

8. A mine intrinsically safe drilling rig hole opening orientation instrument according to claim 7, characterized in that: The orientation detection controller (6) is provided with a control circuit, a three-axis gyro sensor and a three-axis accelerometer.

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