CN108166967B - Control system of rotary jetting drilling machine and rotary jetting drilling machine - Google Patents
Control system of rotary jetting drilling machine and rotary jetting drilling machine Download PDFInfo
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- CN108166967B CN108166967B CN201711416926.9A CN201711416926A CN108166967B CN 108166967 B CN108166967 B CN 108166967B CN 201711416926 A CN201711416926 A CN 201711416926A CN 108166967 B CN108166967 B CN 108166967B
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- 238000005553 drilling Methods 0.000 title claims abstract description 52
- 238000005507 spraying Methods 0.000 claims abstract description 39
- 239000012530 fluid Substances 0.000 claims description 38
- 230000001276 controlling effect Effects 0.000 claims description 15
- 238000001514 detection method Methods 0.000 claims description 8
- 230000001105 regulatory effect Effects 0.000 claims description 8
- 238000005086 pumping Methods 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 17
- 239000002002 slurry Substances 0.000 description 9
- 238000000034 method Methods 0.000 description 6
- 230000000875 corresponding effect Effects 0.000 description 5
- 230000006378 damage Effects 0.000 description 5
- 238000010276 construction Methods 0.000 description 4
- 239000007921 spray Substances 0.000 description 4
- 208000027418 Wounds and injury Diseases 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 208000014674 injury Diseases 0.000 description 3
- 238000009987 spinning Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 230000006837 decompression Effects 0.000 description 1
- 230000014509 gene expression Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Classifications
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- 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
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- 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
- E21B21/00—Methods or apparatus for flushing boreholes, e.g. by use of exhaust air from motor
- E21B21/08—Controlling or monitoring pressure or flow of drilling fluid, e.g. automatic filling of boreholes, automatic control of bottom pressure
-
- 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
- E21B7/18—Drilling by liquid or gas jets, with or without entrained pellets
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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 application discloses a control system of a rotary spraying drilling machine and the rotary spraying drilling machine. The control system of the rotary jetting drilling machine comprises a control valve for controlling the speed of the power head, a pilot handle and a controller which is coupled with the control valve, wherein the pilot handle controls the speed of the power head in a drilling state; in the rotary jetting lifting state, the controller automatically controls the action of the control valve according to the speed set value so as to control the speed of the power head. The control system of the rotary jet drilling machine realizes automatic control of the speed of the power head, thereby improving the control accuracy of the speed of the power head. And the labor intensity of workers is reduced.
Description
Technical Field
The application relates to the technical field of engineering machinery, in particular to a control system of a rotary spraying drilling machine and the rotary spraying drilling machine.
Background
The high-pressure rotary spraying construction comprises two working conditions of drilling and rotary spraying lifting, and the rotating speed of the power head does not need to be regulated and the feeding speed does not need to be accurately regulated during the drilling working condition; and when the rotary spraying lifting working condition is adopted, the rotating speed of the power head and the rotary spraying lifting speed need to be accurately adjusted. As shown in fig. 1, the control system of the rotary jetting-drilling machine in the prior art includes a first pilot handle 1a and a first manual pressure reducing valve 3a for controlling the lifting speed of the power head, and a second pilot handle 2a and a second manual pressure reducing valve 4a for controlling the rotation speed of the power head, because the adjustment of the rotation speed of the power head and the lifting speed of the rotary jetting is realized by manual operation, the accuracy is not high and the repeatability is not high.
Because high-pressure slurry, high-pressure water and high-pressure air can be sprayed in the high-pressure rotary spraying process, the pressure of the high-pressure slurry, the high-pressure water and the high-pressure air is required to be reduced when the depth of the power head from the ground is reduced to a certain value, and personal injury caused by high-pressure fluid spraying is prevented. The depressurization of the high-pressure fluid in the prior art is completely regulated by manpower, and no alarm device exists.
Disclosure of Invention
The application aims to provide a control system of a rotary jet drilling machine and the rotary jet drilling machine, so as to realize accurate control of the speed of a power head.
The first aspect of the application provides a control system of a rotary jet drilling machine, the rotary jet drilling machine comprises a power head and has a drilling state and a rotary jet lifting state, the control system comprises a control valve and a pilot handle for controlling the speed of the power head, and a controller which is coupled with the control valve, and in the drilling state, the pilot handle controls the speed of the power head; in the rotary jetting lifting state, the controller automatically controls the action of the control valve according to the speed set value so as to control the speed of the power head.
Further, in the drilling state, the controller controls the control valve to be at the maximum opening and the pilot handle controls the speed of the power head; in the spin-spray lifting state, the pilot handle is at the maximum opening and the controller automatically controls the action of the control valve according to the speed set value so as to control the speed of the power head.
Further, the speed of the power head comprises a lifting speed and a rotating speed, wherein the control system comprises a first control valve and a first pilot handle for controlling the lifting speed; and/or the control system comprises a second control valve and a second pilot handle for controlling the rotational speed.
Further, the control valve is an electric proportional pressure reducing valve, the electric proportional pressure reducing valve is electrically connected with the controller, and the controller controls the current of the electric proportional pressure reducing valve.
Further, the first control valve is a first electric proportional pressure reducing valve, the second control valve is a second electric proportional pressure reducing valve, the rotary spraying lifting state comprises a continuous rotary spraying state and an intermittent rotary spraying state, and in the continuous rotary spraying state, the controller controls the first electric proportional pressure reducing valve and the second electric proportional pressure reducing valve to be continuously electrified; in the intermittent rotary spraying state, the controller controls the first electro-proportional pressure reducing valve to be electrified intermittently, and the second electro-proportional pressure reducing valve to be electrified continuously.
Further, the controller further includes an operation portion, wherein the operation portion includes a speed input portion for inputting a speed set value; and/or the operation part comprises a pressure input part for inputting a pressure set value of the jet fluid of the rotary jet head; and/or the operation part comprises a state switching part for inputting the state of the rotary jetting drilling machine.
Further, the control system also comprises a depth detection device for detecting the actual depth of the rotary jetting head of the rotary jetting drilling machine, wherein the controller controls the pressure of the jet fluid of the rotary jetting head and/or the lifting speed of the power head according to the actual depth and the depth critical value; and/or the controller sends out an alarm signal according to the actual depth and the depth critical value.
Further, the rotary jetting tool comprises a fluid pump for pumping fluid to the rotary jetting head, the control system further comprises a pressure adjusting device, and the controller controls the pressure adjusting device to adjust the pressure of the fluid output by the fluid pump.
Further, the rotary jetting drilling machine comprises a motor in driving connection with the fluid pump, the motor forms a pressure regulating device, and the controller controls the rotating speed of the motor to control the pressure of the fluid output by the fluid pump.
Further, the control system also comprises an alarm device, and the controller controls the alarm device to send out an alarm signal according to the actual depth.
Further, the alarm device comprises an alarm lamp and/or a buzzer.
Further, the control system also comprises a display for displaying and/or inputting the operating parameters of the rotary jetting tool.
The second aspect of the application provides a rotary jet drilling machine, which comprises the control system of the rotary jet drilling machine provided by the first aspect of the application.
The control system of the rotary jet drilling machine comprises a control valve and a pilot handle for controlling the speed of a power head and a controller which is coupled with the control valve, wherein the pilot handle controls the speed of the power head in a drilling state; in the rotary jetting lifting state, the controller automatically controls the action of the control valve according to the speed set value so as to control the speed of the power head. The control system of the rotary jet drilling machine realizes automatic control of the speed of the power head, thereby improving the control accuracy of the speed of the power head. And the labor intensity of workers is reduced.
Other features of the present application and its advantages will become apparent from the following detailed description of exemplary embodiments of the application, which proceeds with reference to the accompanying drawings.
Drawings
The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this specification, illustrate embodiments of the application and together with the description serve to explain the application and do not constitute a limitation on the application. In the drawings:
FIG. 1 is a schematic diagram of a control system of a rotary jetting tool of the prior art;
FIG. 2 is a schematic diagram of a control system of a rotary jetting tool according to an embodiment of the present application;
FIG. 3 is a schematic view of a fluid pump and a driving motor of a rotary jetting tool according to an embodiment of the present application;
fig. 4 is a schematic structural diagram of a controller and a display according to an embodiment of the application.
Each reference numeral represents:
1-a first pilot handle; 2-a second pilot handle; 3-a first control valve; 4-a second control valve; 5-a slurry pump; 6-a water pump; 7-an air compressor; 8-a mud pump driving motor; 9-a water pump driving motor; 10-an air compressor driving motor; 11-a controller; 12-a mud pump pressure adjustment knob; 13-a water pump pressure adjusting knob; 14-an air compressor pressure adjusting knob; 15-a depth detection device working knob; 16-an alarm lamp; 17-a buzzer; 18-a display; 19-a power head lifting speed set value input part; 20-a power head rotating speed set value input part; a 21-state switching unit; 22-a lift time input; 23-lifting the pause time input.
Detailed Description
The following description of the embodiments of the present application will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present application, but not all embodiments. The following description of at least one exemplary embodiment is merely exemplary in nature and is in no way intended to limit the application, its application, or uses. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.
The relative arrangement of the components and steps, numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present application unless it is specifically stated otherwise. Meanwhile, it should be understood that the sizes of the respective parts shown in the drawings are not drawn in actual scale for convenience of description. Techniques, methods, and apparatus known to one of ordinary skill in the relevant art may not be discussed in detail, but should be considered part of the specification where appropriate. In all examples shown and discussed herein, any specific values should be construed as merely illustrative, and not a limitation. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further discussion thereof is necessary in subsequent figures.
Spatially relative terms, such as "above … …," "above … …," "upper surface at … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial location relative to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "above" or "over" other devices or structures would then be oriented "below" or "beneath" the other devices or structures. Thus, the exemplary term "above … …" may include both orientations of "above … …" and "below … …". The device may also be positioned in other different ways (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.
As shown in fig. 2 to 4, the rotary jetting tool of the embodiment of the present application includes a power head and has a drilling state and a rotary jetting lifting state. The control system of the rotary jetting tool comprises a control valve for controlling the speed of the power head and a pilot handle, and a controller 11 is coupled with the control valve. In a drilling state, the pilot handle controls the speed of the power head; in the spin-up state, the controller 11 automatically controls the control valve action according to the speed set value to control the speed of the power head.
When the rotary jet drilling machine is in a rotary jet lifting state, the controller automatically controls the control valve to act according to the speed set value so as to control the speed of the power head. When the drill bit is in a drilling state, the speed of the power head is manually controlled by utilizing a pilot handle. The control system of the rotary jet drilling machine improves the control accuracy of the speed of the power head. And the labor intensity of workers is reduced. The control system of the rotary spraying drilling machine can realize automatic construction of rotary spraying lifting and can meet the construction requirements of conventional drilling working conditions.
Preferably, in the drilling state, the controller controls the control valve to be at a maximum opening and the pilot handle controls the speed of the power head. At this time, the speed of the power head is completely determined by the opening degree of the pilot handle. In the spin-spray lifting state, the pilot handle is at the maximum opening and the controller automatically controls the action of the control valve according to the speed set value so as to control the speed of the power head. At this time, the speed of the power head is completely determined by the opening degree of the control valve.
In particular in this embodiment the speed of the power head comprises a lifting speed and a rotation speed, wherein the control system comprises a first control valve 3 and a first pilot handle 1 for controlling the lifting speed and a second control valve 4 and a second pilot handle 2 for controlling the rotation speed, as shown in fig. 2.
In order to realize accurate control of the control valve, the control valve of the embodiment is an electro-proportional pressure reducing valve. The electric proportional pressure reducing valve is electrically connected with the controller, and the controller 11 controls the current of the electric proportional pressure reducing valve. The controller 11 precisely controls the current of the electromagnetic control end of the electric proportional pressure reducing valve, so that the opening degree of the electric proportional pressure reducing valve is precisely controlled.
As shown in fig. 2, the first control valve 3 and the second control valve 4 are both electro proportional pressure reducing valves. The controller 11 has a first connection Y1 for electrical connection with the first control valve 3 and a second connection Y2 for electrical connection with the second control valve 4.
Preferably, the control system of the present embodiment further comprises a display 18. The display 18 is used to display the operating parameters of the rotary jetting tool.
Preferably, the display 18 is also provided with an operating portion.
Specifically, the operation section includes a state switching section 21. The state switching part 21 is used for switching and selecting the working state of the rotary spraying drilling machine.
The operation section further includes a power head lifting speed set point input section 19 and a power head rotation speed set point input section 20. After the operator controls the rotary jetting drilling to enter a rotary jetting lifting state through the state switching part 21, the operator inputs a power head lifting speed set value through the power head lifting speed set value input part 19 and inputs a power head rotating speed set value through the power head rotating speed set value input part 20. The controller receives signals input by the staff and sends out instructions to control the first control valve 3 and the second control valve 4 to perform corresponding actions.
In this embodiment, the spin-up state includes a continuous spin-up state and an intermittent spin-up state. In a continuous rotary spraying state, the controller controls the electric proportional pressure reducing valve to be continuously electrified; in the intermittent rotary spraying state, the controller controls the first electro-proportional pressure reducing valve to be electrified intermittently, and the second electro-proportional pressure reducing valve to be electrified continuously. The staff can choose to carry out continuous jet grouting or intermittent jet grouting according to the actual working condition demands, so that the applicability of the jet grouting drilling machine of the embodiment is improved.
The operation section of the display of the present embodiment further includes a lift time input section 22 and a lift pause time input section 23 for convenience of the worker. The controller can execute interval power-on and power-off on the first electric proportional control valve according to the received lifting time and lifting pause time, so that intermittent lifting is realized. For example, the lift time is t1 and the lift pause time is t2, then the rotary jetting tool will pause the rotary jetting lift for a period of time t2 after performing the rotary jetting lift for a period of time t1 and then repeat in a loop.
The rotary jetting tool of this embodiment includes a fluid pump for pumping fluid to the power head. The control system further comprises a pressure regulating device, and the controller controls the pressure regulating device to regulate the pressure of the output fluid of the fluid pump.
As shown in fig. 3, the fluid pump of the present embodiment includes a slurry pump 5, a water pump 6, and an air compressor 7. The pressure adjusting device includes a mud pump driving motor 8 for driving the mud pump 5, a water pump driving motor 9 for driving the water pump, and an air compressor driving motor 10 for driving the air compressor.
The controller 11 has a third connection terminal Y3 connected to the mud pump driving motor 8, a fourth connection terminal Y4 connected to the water pump driving motor 9, and a fifth connection terminal Y5 connected to the air compressor driving motor 10. It should be noted that the connection here may be an electrical connection, for example, a connection through a control line; or may be a wireless connection, for example, by sending a wireless signal to a corresponding drive motor to control the rotational speed of the motor and thus the pressure of a corresponding fluid pump.
Specifically, in the present embodiment, the controller 11 is further provided with a mud pump pressure adjusting knob 12, a water pump pressure adjusting knob 13, and an air compressor pressure adjusting knob 14. The staff can set for the pressure of slush pump, the pressure of water pump and the pressure of air compressor machine according to the operating mode. The controller 11 controls the rotational speed of the corresponding driving motor according to the set value.
In embodiments not shown in other figures, other pressure regulating devices may be employed to regulate the pressure of the various fluid pumps described above.
In order to ensure that the pressure of the high pressure fluid in front of the lifting surface of the spinning head is reduced, thereby preventing injury to the person by the high pressure fluid, the control system of the present embodiment further comprises depth detection means for detecting the actual depth of the spinning head. The controller controls the pressure of the fluid ejected by the rotary nozzle according to the actual depth and the depth critical value.
As shown in fig. 4, the controller 11 of the present embodiment is provided with a depth detection device operation knob. After the working knob of the depth detection device is started by a worker, the depth detection device is started, the actual depth of the rotary spray head from the ground is detected in real time, the actual depth is sent to the controller 11, and the controller controls the pressure of the fluid sprayed by the rotary spray head according to the actual depth.
Specifically, the operator also needs to input a depth threshold value to the controller 11. The controller controls the pressure of the fluid ejected by the rotary nozzle according to the actual depth and the depth critical value. For example, when the actual depth is greater than the depth threshold, the pressure of the fluid ejected by the spin head is not reduced; when the actual depth is less than the depth threshold, the pressure of the fluid ejected by the nozzle is reduced.
Preferably, the first depth threshold value and the second depth threshold value may also be input to the controller 11. Wherein the first depth threshold is greater than the second depth threshold. Reducing the pressure of the mud pump when the actual depth is less than a first depth threshold; and when the actual depth is smaller than the second depth critical value, simultaneously reducing the pressure of the slurry pump, the water pump and the air compressor.
It should be noted here that this is the lowering and not the direct closing. The slurry pump, the water pump and the air compressor are required to be controlled to maintain a low-pressure state, so that the pipelines are ensured not to be blocked.
Preferably, the controller of the present embodiment controls the lifting speed of the power head according to the actual depth. For example, when the actual depth is less than the depth threshold, the lift speed of the power head is reduced.
In order to warn the personnel in the vicinity of the ground construction site before the rotary sprayer is lifted up to the ground, thereby preventing injury to the personnel, the control system of the embodiment further comprises an alarm device. The controller controls the alarm device to send an alarm signal according to the actual depth.
In particular in this embodiment the alarm means comprise an alarm lamp 16 and/or a buzzer 17.
The specific operation of the rotary jetting tool of this embodiment will be described in detail.
The drilling machine of the embodiment has two states of drilling state and rotary spraying lifting. The rotary spraying lifting state comprises a continuous rotary spraying state and an intermittent rotary spraying state. First, the worker selects the operation state by the state switching section 21 on the display 18.
In the drilling state: the controller controls the first control valve 3 and the second control valve 4 to have maximum opening degrees and not to have a decompression function, and at this time, the lifting speed and the rotating speed of the power head are set by the first pilot handle 1 and the second pilot handle 2, respectively.
In the continuous jet lifting state: the operator locks the first pilot handle 1 and the second pilot handle 2 at the maximum opening, and at this time, the lifting speed and the forward rotation speed of the power head are controlled by the first control valve 3 and the second control valve 4, respectively (the current of the first control valve 3 is determined by the value input by the lifting speed set value input part 19 on the display 18, the current of the second control valve 4 is determined by the value input by the power head forward rotation speed set input part 20 on the display 18, and the current value is automatically calculated according to the input power head forward rotation speed and lifting speed).
In the intermittent rotary spraying lifting state: the first pilot handle 1 and the second pilot handle 2 are both at maximum opening and locked, and at this time, the power head lifting speed and the forward rotation speed are respectively controlled by the first control valve 3 and the second control valve 4. And at the same time the first control valve 3 performs on-off according to the lift time and lift pause time entered by the display.
In this embodiment, four depth thresholds are stored in the controller. The four depth thresholds are 0.3 meters, 0.5 meters, 1 meter, and 1.5 meters, respectively.
The rotary spraying control system of the embodiment executes different actions when the rotary spraying head is in different depth intervals. The method comprises the following steps:
the depth detection means sends the actual depth H of the spinning nozzle to the controller 11.
When 1<H is less than or equal to 1.5 meters, the alarm lamp 16 intermittently flashes, and the buzzer 17 continuously sounds three sounds, which is the stage I alarm.
When the rotary nozzle is lifted to 0.5< H less than or equal to 1 meter, the alarm lamp 16 continuously flashes, and the buzzer 17 continuously and intermittently sounds, which is a phase II alarm.
When the lifting speed is 0.3< H less than or equal to 0.5 meter, the alarm lamp 16 flashes at a high speed, the buzzer 17 sounds continuously, and meanwhile, the mud pump driving motor is automatically slowed down to reduce the pressure, the lifting speed of the rotary spraying is halved, and the step III is an alarm.
When the H is not more than 0.3 meter, the alarm lamp 16 flashes at a high speed, the buzzer 17 sounds continuously, the mud pump driving motor, the water pump driving motor and the air compressor driving motor all run at a low speed, a low-pressure state is maintained, the pipeline is ensured not to be blocked, and the alarm is an alarm in the IV stage.
The control system of the rotary spraying drilling machine of the embodiment sends different alarm signals according to different distance intervals in the distance of the rotary spraying head, which is closer to the ground, so that a reminding effect is better formed for staff.
The alarm can be released through a reset button on the display, and the alarm release at the optional stage can be realized, or the alarm release in the current rotary spraying process can be realized:
of course, the alarm signal can be relieved in the above stages:
after the alarm is released in the I and II stages, the alarm lamp 16 and the buzzer 17 are reset and stop working.
After the alarm at the third stage is released, the alarm lamp 16 flashes at a high speed, and the buzzer 17 resets to stop working. The rotation speed of the motor of the slurry pump is not recovered, and the rotary spraying lifting speed is recovered.
After the alarm is released in the IV stage, the alarm lamp 16 and the buzzer 17 are reset and stop working, and the mud pump driving motor, the water pump driving motor and the air compressor driving motor still run at a small speed, so that a low-pressure state is maintained, and the pipeline is ensured not to be blocked.
After the alarm of the whole rotary spraying process is released, the alarm lamp 16 and the buzzer 17 are reset and stop working. At the moment, the rotation speeds of the slurry pump driving motor, the water pump driving motor, the air compressor driving motor and the rotary spraying lifting speed are carried out according to the parameters after the alarm release of the stage corresponding to the current stage, and the rotation speeds of the slurry pump driving motor, the water pump driving motor and the air compressor driving motor can be manually adjusted, but can only be reduced.
In summary, the control system of the rotary spraying drilling machine of the embodiment can realize automatic control of the rotating speed and the lifting speed of the power head when the rotary spraying drilling machine is in the rotary spraying lifting state so as to realize accurate control, and the realization of automatic control can also improve the working efficiency of staff. In addition, when the actual depth of the rotary jetting head is closer to the ground, the control system of the rotary jetting machine can also reduce the pressure of the fluid pump and reduce the lifting speed of the rotary jetting head, so that the damage of the high-pressure jetted fluid to staff is prevented. And when the actual depth of the rotary nozzle is closer to the ground, the alarm lamp and/or the buzzer can be controlled to send out an alarm signal, so that the effect of reminding workers is achieved, and the damage of fluid to the workers is further prevented.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present application and not for limiting the same; while the application has been described in detail with reference to the preferred embodiments, those skilled in the art will appreciate that: modifications may be made to the specific embodiments of the present application or equivalents may be substituted for part of the technical features thereof; without departing from the spirit of the application, it is intended to cover the scope of the application as claimed.
Claims (13)
1. A control system of a rotary jet drilling machine, wherein the rotary jet drilling machine comprises a power head and has a drilling state and a rotary jet lifting state, and the control system is characterized by comprising a control valve for controlling the speed of the power head, a pilot handle and a controller which is coupled with the control valve, wherein in the drilling state, the pilot handle controls the speed of the power head; in the rotary jetting lifting state, the controller automatically controls the control valve to act according to a speed set value so as to control the speed of the power head.
2. The control system of a rotary jetting tool of claim 1, wherein in the drilling state, the controller controls the control valve at a maximum opening and the pilot handle controls the speed of the power head; in the rotary jetting lifting state, the pilot handle is in the maximum opening degree, and the controller automatically controls the control valve to act according to the speed set value so as to control the speed of the power head.
3. The control system of a rotary jetting tool of claim 1, wherein the speed of the power head comprises a lift speed and a rotational speed, wherein the control system comprises a first control valve and a first pilot handle for controlling the lift speed; and/or the control system comprises a second control valve and a second pilot handle for controlling the rotational speed.
4. The control system of a rotary jetting tool of claim 1, wherein the control valve is an electro-proportional pressure reducing valve electrically connected to the controller, the controller controlling the magnitude of the current of the electro-proportional pressure reducing valve.
5. A control system of a rotary jetting tool as claimed in claim 3, wherein the first control valve is a first electro proportional pressure reducing valve, the second control valve is a second electro proportional pressure reducing valve, the rotary jetting lift state comprises a continuous rotary jetting state in which the controller controls both the first electro proportional pressure reducing valve and the second electro proportional pressure reducing valve to be continuously energized, and an intermittent rotary jetting state; in the intermittent rotary spraying state, the controller controls the first electro-proportional pressure reducing valve to be electrified intermittently, and the second electro-proportional pressure reducing valve to be electrified continuously.
6. The control system of a rotary jetting tool of claim 1, wherein the controller further comprises an operating portion, wherein the operating portion comprises a speed input for inputting the speed set point; and/or the operation part comprises a pressure input part for inputting a pressure set value of the jet fluid of the rotary jet head; and/or the operation part comprises a state switching part for inputting the state of the rotary spraying drilling machine.
7. A control system of a rotary jetting tool according to any of claims 1-6, characterized in that the control system further comprises depth detection means for detecting the actual depth of a rotary jetting tool of the rotary jetting tool, wherein the controller controls the pressure of the jet tool jetting fluid and/or the lifting speed of the power head in dependence of the actual depth and depth threshold; and/or the controller sends out an alarm signal according to the actual depth and the depth critical value.
8. The control system of a rotary jetting tool of claim 7, wherein the rotary jetting tool comprises a fluid pump for pumping fluid to the rotary jetting tool, the control system further comprising a pressure adjustment device, the controller controlling the pressure adjustment device to adjust the pressure of the fluid pump output fluid.
9. A control system for a rotary jetting tool, according to claim 8, comprising a motor drivingly connected to the fluid pump, the motor forming the pressure regulating means, the controller controlling the rotational speed of the motor to control the pressure of the fluid output by the fluid pump.
10. The control system of a rotary jetting tool of claim 7, further comprising an alarm device, wherein the controller controls the alarm device to emit an alarm signal based on the actual depth.
11. Control system of a rotary jetting tool according to claim 10, characterized in, that the alarm means comprise an alarm lamp and/or a buzzer.
12. A control system of a rotary jetting tool according to any of claims 1-6, characterized in that the control system further comprises a display for displaying and/or inputting operational parameters of the rotary jetting tool.
13. Rotary jetting tool, characterized in that it comprises a control system of a rotary jetting tool according to any of claims 1-12.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711416926.9A CN108166967B (en) | 2017-12-25 | 2017-12-25 | Control system of rotary jetting drilling machine and rotary jetting drilling machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711416926.9A CN108166967B (en) | 2017-12-25 | 2017-12-25 | Control system of rotary jetting drilling machine and rotary jetting drilling machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108166967A CN108166967A (en) | 2018-06-15 |
| CN108166967B true CN108166967B (en) | 2023-10-03 |
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| CN201711416926.9A Active CN108166967B (en) | 2017-12-25 | 2017-12-25 | Control system of rotary jetting drilling machine and rotary jetting drilling machine |
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| CN111058768A (en) * | 2020-02-27 | 2020-04-24 | 徐州徐工基础工程机械有限公司 | Horizontal directional drilling machine power head push-pull, rotation constant speed cruise and exit control technology |
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