CN219795151U - Guiding device for horizontal directional drill - Google Patents
Guiding device for horizontal directional drill Download PDFInfo
- Publication number
- CN219795151U CN219795151U CN202321086897.5U CN202321086897U CN219795151U CN 219795151 U CN219795151 U CN 219795151U CN 202321086897 U CN202321086897 U CN 202321086897U CN 219795151 U CN219795151 U CN 219795151U
- Authority
- CN
- China
- Prior art keywords
- drilling tool
- sensor
- underground
- processor
- horizontal directional
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000005553 drilling Methods 0.000 claims abstract description 39
- 230000005540 biological transmission Effects 0.000 claims abstract description 25
- 239000000523 sample Substances 0.000 claims description 21
- 238000006243 chemical reaction Methods 0.000 claims description 7
- 238000012544 monitoring process Methods 0.000 claims description 6
- 238000004364 calculation method Methods 0.000 abstract description 7
- 238000000034 method Methods 0.000 abstract description 4
- 230000005484 gravity Effects 0.000 abstract description 3
- 238000005516 engineering process Methods 0.000 description 6
- 238000009412 basement excavation Methods 0.000 description 4
- 230000005358 geomagnetic field Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000005259 measurement Methods 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000010354 integration Effects 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 239000002689 soil Substances 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000007405 data analysis Methods 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 230000008054 signal transmission Effects 0.000 description 1
Abstract
The utility model relates to a horizontal directional drill guide device, comprising: the positioning system comprises an artificial magnetic source arranged on the ground, a sensor arranged in the underground drilling tool and a processor, wherein the sensor comprises a triaxial accelerometer and a triaxial magnetometer, can receive the earth gravity field and the earth magnetic field signal, can calculate the posture parameter of the drilling tool, and can also receive the magnetic field signal sent by the ground artificial magnetic source to calculate the three-dimensional position parameter of the relative magnetic source; the system also comprises a transmission system, wherein the transmission system comprises a transmitting unit arranged underground and a receiving unit arranged on the ground, and the processor transmits the calculated drilling tool attitude parameters and the three-dimensional position parameters to the transmitting unit to transmit the parameters to the receiving unit in the form of electromagnetic waves. The utility model separates the positioning calculation process and the data transmission process, can enhance the anti-interference capability and ensures the positioning accuracy.
Description
Technical Field
The utility model relates to the technical field of non-excavation guiding and positioning, in particular to a horizontal directional drilling guiding device.
Background
The non-excavation technology is a key engineering technology commonly used in many underground constructions at present, and mainly refers to a construction mode of laying, replacing and repairing various underground pipelines under the condition of excavating a very small part of the earth surface by utilizing various rock-soil drilling equipment and technical means through modes of guiding, directional drilling and the like, so that the damage and adverse effects on traffic, environment and surrounding building foundations are low.
In the non-excavation process, guiding is a very critical core technology, and the current non-excavation guiding device generally comprises an underground transmitting probe, a ground tracker and a driller monitor, wherein the transmitting probe transmits low-frequency electromagnetic waves when in use, and the tracker receives the electromagnetic waves so as to realize the processes of positioning calculation and data reception.
However, the technology transmits electromagnetic waves and needs the function of simultaneously carrying out data calculation and transmission, the process of positioning calculation by utilizing the electromagnetic waves is realized by utilizing the intensity and the direction of triaxial receiving, no disagreement exists, and slight interference causes inaccurate positioning, so that the technology is easily influenced by metal interference or conductive stratum near the ground, and the situation that data can be received but the positioning is inaccurate often occurs.
Disclosure of Invention
In order to solve the technical problems, the utility model provides a horizontal directional drilling guiding device which can effectively overcome various interference items, so that a drilling tool can be positioned more accurately.
In order to achieve the above purpose, the technical scheme of the utility model is as follows:
a horizontally oriented drill guide apparatus comprising:
the positioning system is used for calculating the position of the drilling tool and comprises an artificial magnetic source arranged on the ground, a sensor arranged in the underground drilling tool and a processor, wherein the sensor receives the earth magnetic field and magnetic field signals sent by the artificial magnetic source and transmits the signals to the processor to calculate the posture parameters and the three-dimensional position parameters of the drilling tool;
the transmission system comprises a transmitting unit arranged underground and a receiving unit arranged on the ground, and the processor transmits the drilling tool attitude parameters to the transmitting unit and transmits the drilling tool attitude parameters to the receiving unit in the form of electromagnetic waves.
According to the technical scheme, the position of the drilling tool is calculated by using the positioning system, an artificial magnetic source, a sensor and a processor are adopted for completion, because the artificial magnetic source can emit a low-frequency magnetic field signal, the signal is hardly influenced by stratum media during signal propagation, the ground emission magnetic source is not easily limited by size and power, various interference sources have limited influence on the emitted extremely-low-frequency magnetic field, so that the accurate drilling tool position can be obtained, a subsequent transmission system only takes charge of data transmission by using low-frequency electromagnetic waves and does not relate to positioning calculation, the low-frequency electromagnetic wave signal transmission has lower interference requirements, and even if attenuation manifold changes, only part of signals can be demodulated when reaching the ground, and the accuracy of data transmission can be ensured.
As one optional embodiment of the utility model, the system further comprises a subsurface probe, wherein a power supply unit is arranged in the subsurface probe, and the sensor, the processor and the transmitting unit are integrated in the subsurface probe.
The technical scheme is realized, a plurality of parts are integrated in the transmitting probe, the integration is high, the occupied volume is small, and the installation and the use are simpler.
As one optional embodiment of the utility model, the outer side of the underground probe is covered with a non-magnetic drill collar.
By means of the technical scheme, the non-magnetic drill collar has good low magnetic permeability, so that propagation of a magnetic field is not affected.
As one of the alternative embodiments of the present utility model, the sensor includes a three-axis magnetometer and a three-axis accelerometer.
According to the technical scheme, the triaxial accelerometer and the triaxial magnetometer are uniformly arranged along three axial directions of the drilling tool, the triaxial accelerometer is used for measuring components of an earth gravity field, an inclination angle and a tool angle can be calculated through corresponding formulas, the triaxial magnetometer can be used for measuring components of the earth geomagnetic field, a magnetic azimuth angle can be calculated through corresponding formulas together with accelerometer results, a magnetic field of an artificial magnetic source can be acquired, and the accurate position of the drilling tool can be calculated through a processor.
As an alternative embodiment of the utility model, the sensor further comprises a temperature sensor.
As one of the optional embodiments of the present utility model, the transmitting unit includes a wireless transmission circuit board on which a power amplifying circuit, a frequency-selecting matching circuit are integrated so as to load a signal to the solenoid coil.
As an optional embodiment of the present utility model, the wireless transmission circuit board further integrates a power conversion module and a battery monitoring module.
According to the technical scheme, the power supply conversion module is connected with the power supply unit and converts the voltage provided by the power supply unit into the proper voltage for supplying power to different parts such as the sensor, and the battery monitoring module is used for monitoring the health condition of the battery.
As an alternative embodiment of the utility model, the receiving unit comprises a pilot instrument and a driller's display, the pilot instrument demodulating and displaying signals representing the posture and position of the drilling tool, and transmitting them wirelessly to the driller's display for observation by the operator.
In summary, the utility model at least comprises the following beneficial technical effects:
the position of the drilling tool is calculated by the positioning system, and the artificial magnetic source, the sensor and the processor are adopted;
because the processor, the sensor, the power supply unit and the transmitting unit are integrated in the underground probe, the system is strong in integration, the whole size is small, and the use convenience is effectively improved.
Drawings
In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a block diagram of a use state;
FIG. 2 is a block diagram for representing the measurement principle;
FIG. 3 is a schematic diagram illustrating a subsurface probe and internal integrated structure.
Reference numerals: 1. a positioning system; 11. an artificial magnetic source; 111. a power supply; 12. a sensor; 121. a triaxial magnetometer; 122. a three-axis accelerometer; 123. a temperature sensor; 13. a processor; 2. a transmission system; 21. a transmitting unit; 211. a wireless transmission circuit board; 212. a solenoid coil; 22. a receiving unit; 221. a guide instrument; 222. a driller display; 3. an underground probe; 4. a power supply unit; 5. a non-magnetic drill collar; 6. a power conversion module; 7. and a battery monitoring module.
Detailed Description
The utility model is described in further detail below with reference to fig. 1-3.
Referring to fig. 1 and 2, a horizontal directional drill guide device is disclosed for the present embodiment, which includes a positioning system 1 for calculating the position of a drill and a transmission system 2 for transmitting calculated data. The positioning system 1 comprises an artificial magnetic source 11 arranged on the ground, a sensor 12 arranged on an underground drilling tool and a processor 13, wherein the sensor 12 receives a magnetic field signal sent by the artificial magnetic source 11 and transmits the magnetic field signal to the processor 13 to calculate the position parameter of the drilling tool; the transmission system 2 comprises a transmitting unit 21 placed underground and a receiving unit 22 placed on the ground, and the processor 13 transmits the tool attitude parameters to the transmitting unit 21 and transmits them to the receiving unit 22 in the form of electromagnetic waves. In the scheme, the positioning and data transmission processes are separated and completed by the positioning system 1 and the transmission system 2 respectively, and the positioning system 1 performs data analysis and calculation by utilizing the cooperation of a low-frequency magnetic field, a corresponding sensor and a processor, so that the interference can be greatly overcome, and the precision is improved.
The artificial magnetic source 11 is a structure capable of generating an extremely low frequency magnetic field, and can be an air coil or a solenoid with a magnetic core, the artificial magnetic source 11 is provided with a power supply 111, an alternating current magnetic field can be generated under the excitation of the power supply 111, the size of the artificial magnetic source 11 can be adjusted according to the required measurement depth, and the extremely low frequency magnetic field is adopted for emission, because the alternating current magnetic field has strong anti-interference capability and deeper measurement depth, the direct current geomagnetic field can be avoided, the influence of geomagnetic field fluctuation is avoided, the extremely low frequency magnetic field signal is hardly influenced by stratum medium during propagation, and even the conductive soil influence is negligible.
Referring to fig. 1, 2 and 3, an underground probe 3 is further provided below the ground, the underground probe 3 is provided in a drilling tool, a power supply unit 4 is provided in the underground probe 3, and a sensor 12, a processor 13 and a transmitting unit 21 are integrated in the underground probe 3. The outer side of the underground probe 3 is covered with a non-magnetic drill collar 5 so that the inward-propagating magnetic field is not affected. The sensor 12 comprises a triaxial magnetometer 121, a triaxial accelerometer 122 and a temperature sensor 123, wherein the triaxial magnetometer 121 is used for receiving a magnetic field by a high-sensitivity triaxial fluxgate magnetometer, the triaxial magnetometer 121 can measure the geomagnetic field, the magnetic azimuth angle can be calculated through a corresponding formula, and the position of a drilling tool can be determined by measuring an artificial magnetic field; the triaxial accelerometer 122 can measure the component of the earth gravity field, the inclination angle and the tool angle are calculated through corresponding formulas, and compared with a traditional guiding instrument, the combination of the two can obtain the working parameters of the drilling tool more accurately, and the triaxial accelerometer 122 and the triaxial magnetometer 121 are uniformly arranged along three axial directions of the drilling tool when being specifically arranged and used, and the magnetic azimuth angle is calculated by matching with the processor 13; the temperature sensor 123 is used to monitor the internal temperature and determine whether the environment in the subsurface probe 3 is within a safe range. Because the tri-axis accelerometer 122 and the temperature sensor 123 are both digital outputs, they can be directly connected to the corresponding ports of the processor 13, and the tri-axis magnetometer 121 is an analog output signal, which is converted to a digital signal by a special a/D converter, and then connected to the ports of the processor 13.
Referring to fig. 1 and 2, the transmitting unit 21 includes a wireless transmission circuit board 211 and a solenoid coil 212, a power amplifying circuit and a frequency-selecting matching circuit are integrated on the wireless transmission circuit board 211 so as to load a signal to the solenoid coil 212, the solenoid coil 212 modulates a very low frequency electromagnetic wave band to emit a low frequency electromagnetic wave to the ground, generally 1-30kHz, the receiving unit 22 includes a director 221 and a driller display 222, the director 221 is a ground hand-held director 221 in the conventional technology, the director 221 receives and demodulates an electromagnetic signal representing the posture and position of a drilling tool, and displays the demodulated signal, and simultaneously transmits the result to the driller display 222 for an operator to observe.
Referring to fig. 2 and 3, a power conversion module 6 and a battery monitoring module 7 are further disposed on the wireless transmission circuit board 211, and the power supply unit 4 is electrically connected to the power conversion module 6 to supply power to the sensor 12, the circuit and the solenoid coil 212, respectively, and in this embodiment, the power supply unit 4 is formed by connecting a plurality of rechargeable batteries in series. The housing of solenoid coil 212 employs a non-metallic housing to avoid electromagnetic shielding.
The implementation principle of the horizontal directional drilling guiding device provided by the embodiment of the utility model is as follows: the artificial magnetic source 11 starts extremely low frequency magnetic field emission under the assistance of the power supply 111, generally 1-10Hz, a dipole magnetic field distribution is generated in space, the magnetic field penetrates through stratum of tens to hundreds of meters, the stratum is received by the triaxial magnetometer 121 and is subjected to A/D conversion, the signal is analyzed and processed by the processor 13, the extremely low frequency magnetic field signal stored for a period of time can be collected and stored by the processor 13, information such as amplitude, phase and frequency of the magnetic field signal is obtained, position information is finally obtained through calculation according to a spatial distribution model of the magnetic dipole magnetic field, the three-dimensional position of the relative artificial magnetic source 11 is output, the three-dimensional position calculated by the processor 13 can be analyzed based on the tool angle of the vertical dip angle and the rotation direction of the drilling tool, the three-dimensional position calculated by the processor 13 is loaded to the solenoid coil 212 through the power amplifying circuit and the frequency selecting matching circuit on the wireless transmission circuit board and finally transmitted to the ground in the mode of extremely low frequency electromagnetic wave (1-30 kHz), the information is received by the ground handheld director 221, and finally fed back to the driller display 222. In this way, the artificial magnetic source 11 on the ground is used for emitting a magnetic field, the size and power supply of the magnetic source are not limited by the size and power as underground, a small amount of metal interference sources near the ground have limited influence on the emitted magnetic field, and the underground high-sensitivity triaxial magnetometer 121 is far away from the ground interference sources, so that accurate positioning is easy to realize.
The above embodiments are not intended to limit the scope of the present utility model, so: all equivalent changes in structure, shape and principle of the utility model should be covered in the scope of protection of the utility model.
Claims (8)
1. A horizontal directional drill guide apparatus, comprising:
the positioning system (1) is used for calculating the position of the drilling tool, the positioning system (1) comprises an artificial magnetic source (11) arranged on the ground, a sensor (12) arranged in the underground drilling tool and a processor (13), wherein the sensor (12) receives the earth magnetic field and magnetic field signals sent by the artificial magnetic source (11) and transmits the magnetic field signals to the processor (13) to calculate the posture parameters and the three-dimensional position parameters of the drilling tool;
the transmission system (2), the transmission system (2) comprises a transmitting unit (21) arranged underground and a receiving unit (22) arranged on the ground, and the processor (13) transmits the drilling tool posture parameters and the three-dimensional position parameters to the transmitting unit (21) and transmits the drilling tool posture parameters and the three-dimensional position parameters to the receiving unit (22) in the form of electromagnetic waves.
2. The horizontal directional drilling guide as recited in claim 1 wherein: the underground probe is characterized by further comprising an underground probe (3), a power supply unit (4) is arranged in the underground probe (3), and the sensor (12), the processor (13) and the transmitting unit (21) are integrated in the underground probe (3).
3. The horizontally oriented drill guide device of claim 2, wherein: the outer side of the underground probe rod (3) is covered with a non-magnetic drill collar (5).
4. The horizontal directional drilling guide as recited in claim 1 wherein: the sensor (12) includes a three-axis magnetometer (121) and a three-axis accelerometer (122).
5. The horizontal directional drilling guide as recited in claim 4 wherein: the sensor (12) further comprises a temperature sensor (123).
6. The horizontal directional drilling guide as recited in claim 1 wherein: the transmitting unit (21) comprises a wireless transmission circuit board (211) and a solenoid coil (212), wherein a power amplifying circuit and a frequency selection matching circuit are integrated on the wireless transmission circuit board so as to load signals to the solenoid coil (212).
7. The horizontally oriented drill guide device of claim 6 wherein: the wireless transmission circuit board (211) is also integrated with a power conversion module (6) and a battery monitoring module (7).
8. The horizontal directional drilling guide as recited in claim 1 wherein: the receiving unit (22) comprises a guide instrument (221) and a driller's display (222), the guide instrument (221) transmitting a signal representing the position of the drilling tool onto the driller's display (222) for observation by the operator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321086897.5U CN219795151U (en) | 2023-05-08 | 2023-05-08 | Guiding device for horizontal directional drill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321086897.5U CN219795151U (en) | 2023-05-08 | 2023-05-08 | Guiding device for horizontal directional drill |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219795151U true CN219795151U (en) | 2023-10-03 |
Family
ID=88176148
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321086897.5U Active CN219795151U (en) | 2023-05-08 | 2023-05-08 | Guiding device for horizontal directional drill |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219795151U (en) |
-
2023
- 2023-05-08 CN CN202321086897.5U patent/CN219795151U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104656044B (en) | Induction type broadband three-component drilling magnetic field probe and utilize its borehole electromagnetic exploitation method | |
| KR101555311B1 (en) | Positioning, detection and communication system and method | |
| EP1859302B1 (en) | Digital locating system and device for underground object detection | |
| US8018382B2 (en) | Positioning system and method | |
| EP3008496B1 (en) | Sensor for measuring the electromagnetic fields on land and underwater | |
| US6776246B1 (en) | Apparatus and method for simultaneously locating a fixed object and tracking a beacon | |
| CN106646629A (en) | Deepwater double-ship towing-type electromagnetic prospecting system | |
| CN102236106A (en) | Method and device for measuring resistivity of underground medium on ground and in gallery in quasi-three-dimension mode | |
| CN219795151U (en) | Guiding device for horizontal directional drill | |
| CN108227022B (en) | Ground-air magnetic resonance detection device and detection method based on SQUID | |
| CN109884720B (en) | Device and method for determining three-dimensional composite frequency electromagnetic detection of water-rich ground well | |
| JPH10318748A (en) | Method and system for measuring position | |
| CN111856601A (en) | Distributed magnetic resonance underground water detection device and detection method | |
| CN207660003U (en) | Bridge foundation solution cavity survey system | |
| CN115166833A (en) | Aviation mixed field source electromagnetic detection system and method | |
| US6819113B2 (en) | Precision grid survey apparatus and method for the mapping of hidden ferromagnetic structures | |
| CN110703342B (en) | Full-coverage anti-interference artificial source electromagnetic detection method | |
| CN211144481U (en) | A nuclear magnetic resonance logging device is bored to position for geological orientation | |
| CN109669186B (en) | Acoustic-magnetic combined measurement system and method for underwater navigation body | |
| CN111781634A (en) | Geophone for soft sandy soil | |
| RU18314U1 (en) | GEODYNAMIC POLYGON OF MULTI-PURPOSE PURPOSE | |
| JP2003121151A (en) | Method and apparatus for prospecting position in excavation body | |
| CN216285767U (en) | Infrared beam emitter | |
| CN113534278A (en) | Infrared beam emitter | |
| Zhao et al. | Test And analyses of TEM B-field parameter |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |