Hole opening orientation automatic measuring equipment fixed to drilling machine

Abstract

Hole opening orientation automatic measuring equipment fixed to a drilling machine comprises a hole opening orientation assembly fixed to a drilling machine rotating platform and an inclination angle measuring unit fixed to a drilling machine sliding rail, the hole opening orientation assembly comprises a control unit and an inertia measuring unit which are connected with each other, and the inertia measuring unit is used for measuring the azimuth angle of hole opening of the drilling machine in an automatic north-seeking mode. The dip angle measuring unit is used for measuring the dip angle of drilling of a drilling machine, the drilling orientation assembly is in communication connection with the dip angle measuring unit, and the drilling orientation assembly is provided with an external interface used for being in butt joint communication with a drilling machine control system. The device is free from magnetic interference, can automatically seek north, and is simple to operate and high in measurement precision.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of measurement technology, specifically speaking, it is a kind of opening directional automatic measuring equipment fixed in drilling machine. BACKGROUND

[0002] In the exploitation process of mineral resources, in order to improve the safety of coal mine, drilling technology is one of the most effective methods to prevent and control gas disaster and water disaster. The hole quality of drilling determines the drilling technology quality, and the opening precision of drilling determines the hole quality of drilling. Therefore, accurate measurement of drilling opening posture is helpful for prevention and control of coal mine gas and water disaster, and to a certain extent, ensures the safety of exploitation.

[0003] The drilling opening measurement parameters mainly include azimuth angle and inclination angle. The existing drilling angle is determined by using opening orientation instrument. The existing opening orientation instrument is used as a separate measuring tool. When measurement is needed, the instrument is first placed horizontally to automatically find north. When automatically finding north, the inclination angle when horizontally placed should be less than ±20°, and leveling is needed. After finding north, the position is changed and placed at the measured position for measurement. The operation is inconvenient. Or there is a fixed position for placing the opening orientation instrument on the drilling machine, which is convenient for measurement. However, the opening orientation function is not integrated into the drilling machine system, and the drilling machine cannot automatically adjust the opening angle according to the opening orientation data.

[0004] Patent No. CN102889075A "Coal Mine Drilling Angle Measurement System and Method" provides a manual measurement opening orientation method and device using digital angle measuring instrument and laser emitting device, which can realize the measurement of drilling opening inclination angle and azimuth angle. However, the laser emitting device needs to generate two laser planes, and the setting of complex alignment requirements is complicated, which greatly reduces the measurement efficiency, and the operation is inconvenient and the precision is poor. Moreover, the digital angle measuring instrument is easily disturbed due to the existence of a large amount of ferromagnetic interference in the coal mine.

[0005] Patent No. CN219953237U "Mine Opening Positioning Instrument System" is a whole measuring tool, which needs to be installed specially for measurement, and the operation is troublesome. Moreover, the azimuth angle measurement and inclination angle measurement can only be collected at the same position, and cannot be installed separately, so the measurement precision is poor.

[0006] Patent No. CN110186442B "Opening Directional Measurement Device Fixed on Drilling Machine" discloses that the posture measurement module needs to be adjusted by a special bracket, and it is a calibration tool, not connected to the drilling machine control system. Moreover, the inertial navigation unit needs to measure both inclination angle and azimuth angle, and cannot be connected to the drilling machine control system. Its use needs to find the horizontal position by using the posture measurement module first, and then find north by using the inertial navigation unit. After finding north, the fixed position of the posture measurement module is adjusted, which increases the additional workload and is inconvenient to use. Practical new type content

[0007] In order to solve the above technical problems, the utility model provides a kind of opening directional automatic measuring equipment fixed in drilling rig, not by magnetic interference, automatic north-seeking, easy operation, high measurement accuracy.

[0008] To achieve the above technical purpose, the technical scheme adopted is: an opening directional automatic measuring equipment fixed in drilling rig, including opening directional assembly fixed on the rotating platform of drilling rig and inclination measuring unit fixed on the slide rail of drilling rig, opening directional assembly includes interconnected control unit and inertial measurement unit, inertial measurement unit is used to automatically north-seeking measurement azimuth angle of drilling rig opening, inclination measuring unit is used to measure the inclination of drilling rig opening, opening directional assembly and inclination measuring unit are communicatively connected, opening directional assembly is equipped with external interface for docking communication with drilling rig control system.

[0009] Further, the inertial measurement unit adopts three-axis fiber-optic gyroscope.

[0010] Further, the inclination measuring unit adopts MEMS inclination sensor.

[0011] Further, the control unit is also connected with display unit.

[0012] Further, the control unit and inertial measurement unit are fixedly installed in shell.

[0013] Further, the shell is composed of hollow shell and base, hollow shell is fixedly installed on base, and base is used to be fixed on the rotating platform of drilling rig.

[0014] Further, the base is provided with groove at the position for installing hollow shell, and rubber pad is placed in the groove.

[0015] Further, the shell is provided with windowing for exposing display unit screen.

[0016] Further, the windowing is provided with transparent protective cover.

[0017] Further, the external interface has 2, which are different types of interfaces.

[0018] The utility model has the beneficial effects that:

[0019] 1. This equipment can measure north, azimuth, and inclination angles with a single installation, eliminating the need for additional fixing. Measurements are performed simultaneously with drilling rig adjustments, without additional operations. No repositioning is required; measurements can be completed in one go after north finding. The hole positioning component, mounted on the drilling rig's rotating platform, maintains a horizontal position. Since the platform remains level, the horizontal inclination angle of the hole positioning component is less than ±20°, meeting the north finding requirements and eliminating the need for leveling. The drilling rig's rotating platform offers ample installation space, facilitating the installation of the hole positioning component. The inclination angle measurement unit is mounted on the drilling rig's guide rail, which is parallel to the drill rod. Regardless of how the drill rod slides along the guide rail, it will not affect the inclination angle measurement, resulting in accurate and stable results. The hole positioning component communicates with the inclination angle measurement unit, transmitting azimuth and inclination angle data to the drilling rig control system. The control system automatically and directly adjusts the drilling rig's rotating platform and guide rails to the drill rod's hole position, achieving drilling automation without the need for laser indicators.

[0020] 2. The system has an external communication port, which enhances the external communication function of the existing hole-opening and directional equipment fixed to the drilling rig. It enables external systems to communicate and control the hole-opening and directional system, expands the application scope, and provides data support for the automation and intelligentization of drilling rigs.

[0021] 3. A three-axis fiber optic gyroscope can accurately measure the horizontal component of the Earth's rotational angular velocity. Combined with accelerometer data, it achieves high-precision true north direction determination, typically at the arcsecond level. It can also measure the drilling rig's azimuth in real time, providing high-precision attitude and orientation information to ensure the accuracy of the drilling direction and reduce deviations. Fiber optic gyroscopes have a fast response speed, completing the north-finding process in a short time, usually only a few minutes or even less, significantly superior to traditional mechanical gyroscopes. Fiber optic gyroscopes have strong resistance to electromagnetic interference, making them suitable for working environments with complex electromagnetic conditions, such as drilling underground or near metal structures. The automatic north-finding function relies entirely on the gyroscope and accelerometer, without relying on external signals (such as GPS), making it suitable for GPS-limited environments, such as indoors, underground, or high-latitude regions.

[0022] 4. MEMS tilt sensors can monitor the tilt angle of the drilling rig in real time, providing high-precision tilt data to ensure the accuracy of the drilling direction. MEMS sensors are small and lightweight, easy to install on slide rails, and have strong tolerance to harsh environments (such as high temperature, high humidity, and strong vibration). MEMS tilt sensors can detect vibration or tilt changes of the drilling rig in real time, helping the control system to adjust the equipment promptly and ensure the stability of the drilling process.

[0023] 5. By connecting a separate display unit to the control unit, tilt angle and azimuth angle can be collected and displayed in real time.

[0024] 6、The control unit and the inertial measurement unit are installed in the shell, so that the two units can be protected and used normally.

[0025] 7、The shell is designed in the form of a hollow shell plus a base, so that the hollow shell and the base can be conveniently disassembled and the control unit and the inertial measurement unit can be conveniently installed; the two units are first installed on the base, and then the hollow shell is installed, so that the assembly difficulty is low.

[0026] 8、The display unit is installed on the side of the hollow shell, and the screen is displayed through windowing, and the remaining part is located inside the hollow shell, so that the display unit has a certain protection function; a protective cover is additionally arranged on the screen to further enhance the protection.

[0027] 9、The external interface is two, which are of different types and have a mistake-proof insertion function. BRIEF DESCRIPTION OF DRAWINGS

[0028] Figure 1 is a principle diagram of the utility model;

[0029] Figure 2 is an installation position diagram of the utility model;

[0030] Figure 3 is an installation position diagram of the tilt angle measurement unit of the utility model;

[0031] Figure 4 is an installation position diagram of the opening directional assembly of the utility model;

[0032] Figure 5 is a structure diagram of the opening directional assembly of the utility model;

[0033] Figure 6 is a structure diagram of the base of the utility model;

[0034] Figure 7 is a structure diagram of the tilt angle measurement unit of the utility model;

[0035] In the figure: 1, opening directional assembly, 2, tilt angle measurement unit, 3, drilling machine rotary platform, 4, drilling machine slide rail, 101, control unit, 102, inertial measurement unit, 103, display unit, 104, hollow shell, 105, base, 106, external interface, 1041, window, 1042, transparent protective cover, 1051, recess, 1052, rubber pad, 1053, blind hole. DETAILED DESCRIPTION

[0036] Preferred embodiments of the utility model are described below in conjunction with the drawings to specifically describe the technical scheme of the utility model. Here, the utility model will be described in detail with reference to the corresponding drawings. It needs to be specially pointed out that the preferred embodiments described here are only used for illustrating and explaining the utility model, and are not used for limiting or defining the utility model.

[0037] As Figure 1 , Figure 2 , Figure 3 , Figure 4 shown, a fixed hole orientation automatic measuring equipment of drilling machine, including fixed hole orientation assembly 1 fixed on the rotating platform 3 of drilling machine and inclination measuring unit 2 fixed on the slide rail 4 of drilling machine, for not affecting the use of drilling machine slide rail 4, the optimal installation position is located at the side of drilling machine slide rail 4. The specific structure of drilling machine is shown in 202020256004.4, and the fixed hole orientation assembly 1 and the inclination measuring unit are fixed in the installation position in a split type, and the rotating platform 3 of drilling machine is basically in a horizontal position, avoiding the problem that the prior art needs to be adjusted to the horizontal position (the azimuth error is large when the inclination is greater than ± 20 °) every time automatic north seeking, and the angle between the drilling machine slide rail 4 and the drill rod is stable, and the inclination measuring unit 2 is fixed on the drilling machine slide rail 4 and parallel to the drilling machine slide rail 4, so that the angle between the inclination measuring unit and the drill rod is stable, and the measurement result is accurate. The overall equipment can be considered as a sensor system of drilling machine, and the collection of hole orientation data is completed without increasing any additional drilling operation, so as to provide data support for realizing drilling automation and intelligentization.

[0038] The fixed hole orientation assembly 1 is installed on the rotating platform 3 of drilling machine, the entire rotating platform 3 of drilling machine can rotate 0 ° ~ 180 °, and the entire drilling mechanism (including drill rod and drilling machine slide rail 4) rotates relying on the rotating platform 3 of drilling machine, and the drill rod and the rotating platform 3 of drilling machine have a certain positional relationship. Therefore, the fixed hole orientation assembly 1 can determine the drilling position azimuth through mechanical positioning. The fixed hole orientation assembly 1 includes an interconnected control unit 101 and an inertial measurement unit 102, the inertial measurement unit 102 is used for automatically seeking north to measure the azimuth of drilling hole, the inclination measuring unit 2 is used for measuring the inclination of drilling hole, the fixed hole orientation assembly 1 and the inclination measuring unit 2 are in communication connection, and the fixed hole orientation assembly 1 is provided with an external interface 106 for communicating with the drilling machine control system. Figure 2 、 Figure 3 、 Figure 4 The connected cable is omitted in the figure.

[0039] As Figure 5 , Figure 6As shown, the opening orientation assembly 1 further comprises a hollow shell 104 and a base 105, the hollow shell 104 is fixedly installed on the base 105, the base 105 is used to be fixed on the drilling rig rotary platform 3, the control unit 101 and the inertial measurement unit 102 can be integrally arranged, and the bottom thereof is fixed in the corresponding blind hole 1053 of the base 105 by bolts, so that quick fixing and installation are realized. The surface of the base 105 is provided with a groove 1051 at the position for installing the hollow shell 104, and a rubber pad 1052 is placed in the groove 1051.

[0040] The external interface 106 has a 12V power supply function when it is connected with the drilling rig control system, and supplies power for the opening orientation assembly 1. It is an RS485 communication interface and can receive the data received by the control unit 101. As shown, Figure 5 The external interface 106 is designed as two, adopts high-dustproof and waterproof grade aviation sockets, and is simple to connect. The two aviation sockets are of different types and have a mistake-proof insertion function.

[0041] The inertial measurement unit 102 adopts a three-axis optical fiber gyroscope.

[0042] As shown, Figure 7 The inclination measurement unit 2 adopts a MEMS inclination sensor, and is powered by the opening orientation assembly 1 when it is in communication connection with the opening orientation assembly 1, and provides 12V power supply. The inclination measurement unit 2 communicates with the opening orientation assembly 1 through an RS485 interface.

[0043] The control unit 101 is further connected with a display unit 103, which can display the azimuth angle data measured by the inertial measurement unit 102, the connection state of the inclination measurement unit 2 or the inclination data after successful connection. The display unit 103 can be installed in the shell and expose the screen through a window 1041. A transparent protective cover 1042 is further installed on the window 1041, as shown, Figure 6 The transparent protective cover 1042 is removed from the window, and its specific installation structure is installed from the inside of the hollow shell 104 and fixed by a stud. After installation, the surface of the transparent protective cover 1042 is flush with the outer surface of the hollow shell 104.

[0044] The inertial measurement unit 102 in the opening orientation assembly 1 is larger in size than the inclination measurement unit 2. If the control unit 101 is installed together with the inclination measurement unit on the drilling rig slide rail 4, the volume of the equipment installed on the drilling rig slide rail 4 will be increased. The position of the drilling rig slide rail 4 is determined according to the drilling position, and some positions are at the top of the roadway and some positions are at the sidewall of the roadway, which is not conducive to the observation of the display unit and is also not conducive to the installation due to the excessive volume. Therefore, the control unit 101, the inertial measurement unit 102 and the display unit 103 are integrated and installed on the drilling rig rotary platform 3, so that the installation space is reasonably utilized, and stable observation and data acquisition are realized.

[0045] The borehole orientation data includes two important parameters, borehole azimuth and borehole inclination, and the device uses a decomposition method to measure each data respectively. Such design is to overcome the technical problem that the existing optical fiber north-finding must be accurate in the horizontal position to automatically find the azimuth. The existing borehole orientation instrument is first horizontally found north to complete, and then the borehole orientation instrument is placed in the measured position for measurement. Such design can make the drilling rig complete automatic north-finding in any position, is convenient to use, reduces adjustment, and is accurate in measurement.

[0046] The specific use steps are as follows:

[0047] Step one: the device is powered and command controlled and data is transmitted through the external interface and the drilling rig control system docking; and the communication interface of the borehole orientation assembly 1 is docked with the inclination measuring unit 2 through a cable.

[0048] Step two: start the inertial measurement unit 102 to automatically find north for 3 minutes.

[0049] Step three: after the north-finding is completed, the data is collected to the control unit 101 by the inertial measurement unit 102 and the inclination measuring unit 2, the control unit 101 filters the data and transmits the data to the display unit 103 to display the measured azimuth and inclination, and transmits the data to the drilling rig control system.

[0050] Step four: the drilling rig control system controls the drilling rig rotating platform 4 and the drilling rig sliding rail 4 according to the received data, and the display unit 103 adjusts the test to display the azimuth and the inclination in real time until the borehole process requirement is met.

[0051] The above is only a preferred example of the utility model, and is not used for limiting or defining the utility model. For researchers or technicians in the field, the utility model can have various changes and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the utility model shall be included in the protection scope declared by the utility model.

Claims

1. A borehole orienting automatic surveying apparatus fixed to a drilling rig, characterized in that: The equipment comprises a borehole orientation assembly (1) fixed on a rotary platform (3) of a drilling rig and an inclination measuring unit (2) fixed on a slide rail (4) of the drilling rig, the borehole orientation assembly (1) comprises an interconnected control unit (101) and an inertial measuring unit (102) for automatically measuring the azimuth angle of the borehole of the drilling rig, the inclination measuring unit (2) is used for measuring the inclination angle of the borehole of the drilling rig, the borehole orientation assembly (1) and the inclination measuring unit (2) are communicatively connected, and the borehole orientation assembly (1) is provided with an external interface (106) for communicating with a control system of the drilling rig.

2. A borehole orienting and automatic surveying apparatus fixed to a drilling rig as claimed in claim 1, characterized in that: The inertial measuring unit (102) is a three-axis fiber-optic gyroscope.

3. A borehole orienting and surveying apparatus for attachment to a drilling rig as defined in claim 1 wherein: The inclination measuring unit (2) is a MEMS inclination sensor.

4. A borehole orienting and surveying apparatus for attachment to a drilling rig as defined in claim 1 wherein: The control unit (101) is further connected with a display unit (103).

5. The borehole orientation automatic measuring equipment fixed on a drilling rig according to claim 1, characterized in that: The control unit (101) and the inertial measuring unit (102) are fixedly installed in a housing.

6. A borehole orienting and surveying apparatus for attachment to a drilling rig as claimed in claim 5 wherein: The housing is composed of a hollow housing (104) and a base (105), the hollow housing (104) is fixedly installed on the base (105), and the base (105) is used for being fixed on the rotary platform (3) of the drilling rig.

7. A borehole orienting and surveying apparatus for attachment to a drilling rig as claimed in claim 6 wherein: The base (105) is provided with a recess (1051) at a position for installing the hollow housing (104), and a rubber pad (1052) is placed in the recess (1051).

8. A borehole orienting and surveying apparatus for attachment to a drilling rig as defined in claim 5 wherein: The housing is provided with a window (1041) for exposing a screen of the display unit (103).

9. A borehole orienting and surveying apparatus for attachment to a drilling rig as claimed in claim 8 wherein: The window (1041) is provided with a transparent protective cover (1042).

10. A borehole orienting and surveying apparatus for attachment to a drilling rig as defined in claim 1 wherein: The external interface (106) has two types of interfaces.

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