CN117027752A - Multistage limit protection system and method for horizontal directional drilling machine - Google Patents
Multistage limit protection system and method for horizontal directional drilling machine Download PDFInfo
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- CN117027752A CN117027752A CN202311259465.4A CN202311259465A CN117027752A CN 117027752 A CN117027752 A CN 117027752A CN 202311259465 A CN202311259465 A CN 202311259465A CN 117027752 A CN117027752 A CN 117027752A
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- 238000005553 drilling Methods 0.000 title claims abstract description 76
- 238000000034 method Methods 0.000 title claims abstract description 17
- 230000009467 reduction Effects 0.000 claims abstract description 36
- 230000006698 induction Effects 0.000 claims abstract description 21
- 238000012544 monitoring process Methods 0.000 claims abstract description 16
- 239000000725 suspension Substances 0.000 claims abstract description 13
- 239000003638 chemical reducing agent Substances 0.000 claims description 7
- 230000007246 mechanism Effects 0.000 claims description 6
- 238000013519 translation Methods 0.000 claims description 6
- 239000010720 hydraulic oil Substances 0.000 claims description 3
- 230000003993 interaction Effects 0.000 claims description 3
- 238000013459 approach Methods 0.000 claims description 2
- 238000010276 construction Methods 0.000 abstract description 15
- 238000012423 maintenance Methods 0.000 abstract description 5
- 238000010586 diagram Methods 0.000 description 3
- 239000003921 oil Substances 0.000 description 2
- 238000009412 basement excavation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000001939 inductive effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B44/00—Automatic control systems specially adapted for drilling operations, i.e. self-operating systems which function to carry out or modify a drilling operation without intervention of a human operator, e.g. computer-controlled drilling systems; Systems specially adapted for monitoring a plurality of drilling variables or conditions
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B7/00—Special methods or apparatus for drilling
- E21B7/04—Directional drilling
- E21B7/046—Directional drilling horizontal drilling
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- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Mechanical Engineering (AREA)
- Earth Drilling (AREA)
Abstract
The invention relates to a multistage limit protection system and a multistage limit protection method, wherein the protection system comprises a controller, a plurality of sensors arranged on a horizontal directional drilling machine, a speed reduction zone induction plate (7) arranged in a speed reduction zone of a drilling frame (5) of the horizontal directional drilling machine, and a rack suspension plate (6) arranged at the end part of the drilling frame (5); the sensors comprise a rotating speed sensor (3) which is arranged on the horizontal directional drilling machine power head assembly (4) and used for monitoring the rotating speed of the hydraulic motor (2), a load sensor (10) which is used for monitoring the load condition of the hydraulic motor (2) and a limit sensor (9) which is used for monitoring the position of a deceleration area of the drilling frame (5); the protection method is based on the protection system and comprises one-to-four-stage limit protection which independently operates. The invention has the advantages of simple structure, high limit reliability, good safety and low maintenance frequency, and can meet the limit of the power head of the large-tonnage horizontal directional drilling machine, thereby reducing the construction cost and improving the construction efficiency.
Description
Technical Field
The invention relates to the technical field of engineering machinery, in particular to a multistage limit protection system and method applied to a horizontal directional drilling machine.
Background
The horizontal directional drilling machine is used for paving various underground public facilities (pipelines, cables and the like) through roads, railways, buildings, rivers, urban streets, cultural relics protection areas and the like, and is a non-excavation construction machine widely used at present. Along with the national energy demand from traditional coal to clean oil gas energy, a large number of large-diameter long-distance pipelines need to be paved, and in addition, a large number of underground pipe networks need to be paved for oil gas branch pipes, receiving and storing in various places, so that the construction engineering amount of large-tonnage equipment rises year by year.
At present, the travel limit of a large-tonnage horizontal directional drilling machine power head on a drilling frame mainly comprises two types of mechanical limit and electric switch limit, wherein a limit structural member is welded at the tail part of the drilling frame, the limit purpose is achieved through collision between the drilling machine power head and a limit machine, the speed is extremely high, the deformation of the structural member is caused by collision, the drilling machine structure is easily damaged, and meanwhile, the problems of complex mechanical structure, heavy equipment and the like of the drilling machine are also caused; the electric switch on the drill frame is mainly used for controlling the push-pull main valve to be not electrified when the power head reaches the position of the designated drill frame, so that the limit purpose is achieved, but the stability of the electric element is low, and the construction risk still exists. Therefore, the existing power head stroke limiting structure is complex, low in reliability, high in safety risk and high in requirement for frequent maintenance, construction cost is improved, and construction efficiency is reduced.
Therefore, a novel horizontal directional drilling machine limit protection system and method with simple structure, high limit reliability, good safety, low maintenance frequency, low construction cost and high construction efficiency are needed.
Disclosure of Invention
The invention aims to overcome the defects and provide the novel limit protection system and method which can meet the limit of the large-tonnage horizontal directional drilling machine power head, and have the advantages of simple structure, high limit reliability, good safety and low maintenance frequency, thereby reducing the construction cost and improving the construction efficiency.
The purpose of the invention is realized in the following way:
a multistage limit protection system of a horizontal directional drilling machine comprises a controller, a plurality of sensors arranged on the horizontal directional drilling machine, a speed reduction zone induction plate arranged in a speed reduction zone of a drilling frame of the horizontal directional drilling machine, and a rack suspension plate arranged at the end part of the drilling frame; the sensor comprises a rotating speed sensor which is arranged on the horizontal directional drilling machine power head assembly and used for monitoring the rotating speed of the hydraulic motor, a load sensor which is used for monitoring the load condition of the hydraulic motor and a limit sensor which is used for monitoring the position of a drilling frame deceleration area; each sensor is electrically connected with the controller; the position between the limit sensor and the speed reduction zone induction plate corresponds to the position and is a non-contact induction feedback signal; the controller is connected with an electric signal of the push-pull main valve for controlling the rotation of the hydraulic motor.
Further, the horizontal directional drilling machine comprises a drilling frame provided with a rack and a power head assembly arranged on the drilling frame in a moving mode through a translation mechanism.
Further, the translation mechanism comprises a plurality of hydraulic motors arranged on the power head assembly, each hydraulic motor drives a corresponding push-pull gear to rotate through an independent speed reducer, and the push-pull gears are in meshed connection with racks on the drilling frame.
Further, the speed reduction zone induction plate is a magnetic plate with the length consistent with the length of the speed reduction zone; the limit sensor is a magnetic sensor.
Further, the load sensor is a pressure sensor or a flow sensor arranged on the hydraulic motor and is used for monitoring the pressure or the flow of hydraulic oil of the hydraulic motor.
Furthermore, racks are not installed on the rack suspension plate and are in a blank state.
Further, the controller is connected with a display for displaying the real-time position of the power head assembly on the drilling frame, so that man-machine interaction is facilitated.
The protection method is realized based on any one of the horizontal directional drilling machine multistage limit protection systems, and the specific method comprises the following steps:
primary limit protection: the rotating speed sensor feeds back the rotating speed of the hydraulic motor to the controller, and the controller calculates the real-time position of the power head assembly on the drilling frame according to the feedback rotating speed and monitors the whole process;
and (3) secondary limit protection: when the power head assembly passes through the speed reduction zone of the drill frame, a limit sensor is close to a speed reduction zone induction plate to obtain a signal of entering the speed reduction zone, and a controller immediately controls a push-pull main valve to enable a hydraulic motor to reduce the rotating speed, so that the power head assembly is decelerated; the limiting sensor is far away from the speed reduction zone induction plate to obtain a signal of leaving the speed reduction zone, and the controller immediately closes the push-pull main valve to stop the rotation of the hydraulic motor, so that the power head assembly stops moving;
three-stage limit protection: after the power head component leaves the speed reducing area, if the push-pull main valve is not closed, the rotating speed sensor feeds back whether the hydraulic motor is overspeed or not, if overspeed, the controller closes the push-pull main valve, and the power head component stops moving;
four-stage limit protection: by utilizing the rack suspension plate arranged at the end part of the drilling frame, as the rack is not arranged, a group of push-pull gears at the edge part of the power head assembly are suspended and idle when moving to the place, so that the group of hydraulic motors have low load, a load sensor feeds back idle signals to the controller, the controller closes the push-pull main valve, and the power head assembly stops moving.
Compared with the prior art, the invention has the beneficial effects that:
the invention relates to a multistage limit protection system of a horizontal directional drilling machine,
the invention relates to a multistage limit protection method of a horizontal directional drilling machine,
drawings
Fig. 1 is a schematic diagram of an installation structure of a multistage limit protection system of a horizontal directional drilling machine.
Fig. 2 is a schematic diagram of a power head assembly of a multistage limit protection system of a horizontal directional drilling machine.
Fig. 3 is a schematic diagram of operation control of a multi-stage limit protection method for a horizontal directional drilling machine.
Wherein:
the speed reducer 1, the hydraulic motor 2, the rotating speed sensor 3, the power head assembly 4, the drilling rig 5, the rack suspension plate 6, the speed reduction interval induction plate 7, the rack 8, the limit sensor 9 and the load sensor 10.
Description of the embodiments
Referring to fig. 1-2, the invention relates to a multistage limit protection system of a horizontal directional drilling machine, which comprises a drilling frame 5 provided with a rack 8 and a power head assembly 4 arranged on the drilling frame 5 in a moving way through a translation mechanism; the translation mechanism comprises a plurality of hydraulic motors 2 arranged on a power head assembly 4, each hydraulic motor 2 drives a corresponding push-pull gear to rotate through an independent speed reducer 1, and the push-pull gears are in meshed connection with racks 8 on a drill frame 5;
the protection system comprises a controller, a plurality of sensors arranged on the horizontal directional drilling machine, a speed reduction zone induction plate 7 arranged in a speed reduction zone of a drilling frame 5 of the horizontal directional drilling machine, and a rack suspension plate 6 arranged at the end part of the drilling frame 5; the controller is connected with a display for displaying the real-time position of the power head assembly 4 on the drilling frame 5 and simultaneously displaying the working state of the limit protection system, so that man-machine interaction is facilitated; the speed reduction zone induction plate 7 is a magnetic plate with the length consistent with the length of the speed reduction zone and is used for indicating the position range of the speed reduction zone; the rack suspension plate 6 is not provided with a rack 8 and is in a blank state;
the sensors comprise a rotating speed sensor 3 which is arranged on the horizontal directional drilling machine power head assembly 4 and used for monitoring the rotating speed of the hydraulic motor 2, a load sensor 10 which is used for monitoring the load condition of the hydraulic motor 2, and a limit sensor 9 which is used for monitoring the position of a deceleration area of the drill frame 5; the rotating speed sensor 3 can be arranged on the hydraulic motor 2 or the speed reducer 1 and used for monitoring the rotating speed of the hydraulic motor 2 or the speed reducer 1; the load sensor 10 is a pressure sensor or a flow sensor arranged on the hydraulic motor 2 and is used for monitoring the pressure or the flow of hydraulic oil of the hydraulic motor 2; the limit sensor 9 is a magnetic sensor, corresponds to the position between the speed reduction zone induction plates 7 and is a non-contact induction feedback signal, and is used for inducing the magnetic range of the speed reduction zone induction plates 7;
the controller is in electrical signal connection with each sensor, and is in electrical signal connection with a push-pull main valve for controlling the rotation of the hydraulic motor 2; the rotating speed sensor 3 feeds back the rotating speed change of the hydraulic motor 2 or the speed reducer 1, and the controller calculates the moving speed and the real-time position of the power head assembly 4 on the drill frame 5 according to the rotating speed and displays the moving speed and the real-time position in a display; the limit sensor 9 feeds back a signal for entering or leaving the deceleration zone when entering or leaving the magnetic range of the deceleration zone sensing plate 7, and the controller correspondingly reduces the opening of the push-pull main valve to enable the power head assembly 4 to decelerate or closes the push-pull main valve to enable the power head assembly 4 to stop moving; when the load sensor 10 senses that the hydraulic motor 2 idles at a low load, the controller closes the push-pull main valve to stop the power head assembly 4 from moving. The sensors are independently operated and mutually supplemented, and the power head of the large-tonnage horizontal directional drilling machine is simple in structure, high in limiting reliability, good in safety, collision-free and simple to maintain, and meets the requirement of limiting the power head of the large-tonnage horizontal directional drilling machine, so that the construction cost is reduced, and the construction efficiency is improved.
Referring to fig. 3, the invention relates to a multistage limit protection method for a horizontal directional drilling machine, which is realized based on the multistage limit protection system for the horizontal directional drilling machine in the embodiment, and comprises the following specific steps:
primary limit protection: the rotating speed sensor 3 feeds back the rotating speed of the hydraulic motor 2 to the controller, the controller calculates the moving speed and the real-time position of the power head assembly 4 on the drilling frame 5 according to the feedback rotating speed, monitors the whole course, and timely sends out a warning and closes the push-pull main valve when reaching the limit position, so that the power head assembly 4 stops moving, and the limit of the power head is realized;
and (3) secondary limit protection: when the power head assembly 4 passes through the speed reduction zone of the drill carriage 5, a limit sensor 9 approaches a speed reduction zone induction plate 7 to obtain a signal of entering the speed reduction zone, and the controller immediately controls the push-pull main valve to enable the hydraulic motor 2 to reduce the rotating speed, so that the power head assembly 4 is decelerated; the limit sensor 9 is far away from the speed reduction zone induction plate 7 to obtain a signal of leaving the speed reduction zone, and the controller immediately closes the push-pull main valve to stop the rotation of the hydraulic motor 2, so that the power head assembly 4 stops moving;
three-stage limit protection: after the power head assembly 4 leaves the speed reduction zone, if the push-pull main valve is not closed, the rotating speed sensor 3 feeds back whether the hydraulic motor 2 exceeds the speed, if the hydraulic motor exceeds the speed, the controller closes the push-pull main valve, and the power head assembly 4 stops moving;
four-stage limit protection: with the rack suspension plate 6 mounted at the end of the drill carriage 5, since the rack is not mounted, suspension and idling occur when a group of push-pull gears at the side of the power head assembly 4 moves to the position, so that the group of hydraulic motors 2 is low in load, the load sensor 10 feeds back an idling low-load signal to the controller, the controller closes the push-pull main valve, and the power head assembly 4 stops moving.
The multistage limit protection method runs independently, mutually does not interfere and supplements, is more reliable and safer in limit, and even if one stage of limit protection fails to realize the limit of the power head due to failure, the device does not need to stop, does not have collision type limit, has long service life, reduces maintenance frequency, improves the construction efficiency of the horizontal directional drilling machine and reduces the construction cost.
In addition: it should be noted that the above embodiment is only one of the optimization schemes of this patent, and any modification or improvement made by those skilled in the art according to the above concepts is within the scope of this patent.
Claims (8)
1. A multistage limit protection system of a horizontal directional drilling machine is characterized in that: the device comprises a controller, a plurality of sensors arranged on a horizontal directional drilling machine, a speed reduction zone induction plate (7) arranged in a speed reduction zone of a drilling frame (5) of the horizontal directional drilling machine, and a rack suspension plate (6) arranged at the end part of the drilling frame (5); the sensors comprise a rotating speed sensor (3) which is arranged on the horizontal directional drilling machine power head assembly (4) and used for monitoring the rotating speed of the hydraulic motor (2), a load sensor (10) which is used for monitoring the load condition of the hydraulic motor (2) and a limit sensor (9) which is used for monitoring the position of a deceleration area of the drilling frame (5); each sensor is electrically connected with the controller; the position between the limit sensor (9) and the speed reduction zone induction plate (7) corresponds to the position and is a non-contact induction feedback signal; the controller is connected with an electric signal of a push-pull main valve for controlling the rotation of the hydraulic motor (2).
2. The horizontal directional drilling machine multistage limit protection system of claim 1, wherein: the horizontal directional drilling machine comprises a drilling frame (5) provided with a rack (8) and a power head assembly (4) arranged on the drilling frame (5) in a moving mode through a translation mechanism.
3. The horizontal directional drilling machine multistage limit protection system of claim 2, wherein: the translation mechanism comprises a plurality of hydraulic motors (2) arranged on a power head assembly (4), each hydraulic motor (2) drives a corresponding push-pull gear to rotate through an independent speed reducer (1), and the push-pull gears are in meshed connection with racks (8) on a drilling frame (5).
4. The horizontal directional drilling machine multistage limit protection system of claim 1, wherein: the speed reduction zone induction plate (7) is a magnetic plate with the length consistent with the length of the speed reduction zone; the limit sensor (9) is a magnetic sensor.
5. The horizontal directional drilling machine multistage limit protection system of claim 1, wherein: the load sensor (10) is a pressure sensor or a flow sensor arranged on the hydraulic motor (2) and is used for monitoring the pressure or the flow of hydraulic oil of the hydraulic motor (2).
6. The horizontal directional drilling machine multistage limit protection system of claim 1, wherein: the rack suspension plate (6) is not provided with racks (8) and is in a blank state.
7. The horizontal directional drilling machine multistage limit protection system of claim 1, wherein: the controller is connected with a display for displaying the real-time position of the power head assembly (4) on the drilling frame (5), so that man-machine interaction is facilitated.
8. A multistage limit protection method for a horizontal directional drilling machine is characterized by comprising the following steps of: the protection method is realized based on the multistage limit protection system of the horizontal directional drilling machine according to any one of claims 1 to 6, and the specific method is as follows:
primary limit protection: the rotating speed sensor (3) feeds back the rotating speed of the hydraulic motor (2) to the controller, and the controller calculates the real-time position of the power head assembly (4) on the drilling frame (5) according to the feedback rotating speed and monitors the whole course;
and (3) secondary limit protection: when the power head assembly (4) passes through the speed reduction zone of the drill carriage (5), a limit sensor (9) approaches a speed reduction zone induction plate (7) to obtain a signal of entering the speed reduction zone, and the controller immediately controls the push-pull main valve to enable the hydraulic motor (2) to reduce the rotating speed, so that the power head assembly (4) is decelerated; the limit sensor (9) is far away from the speed reduction zone induction plate (7) to obtain a signal of leaving the speed reduction zone, and the controller immediately closes the push-pull main valve to stop the rotation of the hydraulic motor (2), so that the power head assembly (4) stops moving;
three-stage limit protection: after the power head assembly (4) leaves the deceleration zone, if the push-pull main valve is not closed, the rotating speed sensor (3) feeds back whether the hydraulic motor (2) is overspeed, if overspeed, the controller closes the push-pull main valve, and the power head assembly (4) stops moving;
four-stage limit protection: by using a rack suspension plate (6) arranged at the end part of the drill frame (5), when a group of push-pull gears at the edge part of the power head assembly (4) move to the position, suspension and idle running occur, so that the group of hydraulic motors (2) have low load, a load sensor (10) feeds back idle running signals to a controller, the controller closes a push-pull main valve, and the power head assembly (4) stops moving.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311259465.4A CN117027752A (en) | 2023-09-27 | 2023-09-27 | Multistage limit protection system and method for horizontal directional drilling machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311259465.4A CN117027752A (en) | 2023-09-27 | 2023-09-27 | Multistage limit protection system and method for horizontal directional drilling machine |
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| Publication Number | Publication Date |
|---|---|
| CN117027752A true CN117027752A (en) | 2023-11-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311259465.4A Pending CN117027752A (en) | 2023-09-27 | 2023-09-27 | Multistage limit protection system and method for horizontal directional drilling machine |
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| Country | Link |
|---|---|
| CN (1) | CN117027752A (en) |
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2023
- 2023-09-27 CN CN202311259465.4A patent/CN117027752A/en active Pending
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