CN110145296A - Device and method for the control of rotary drilling rig power limit - Google Patents
Device and method for the control of rotary drilling rig power limit Download PDFInfo
- Publication number
- CN110145296A CN110145296A CN201910018152.7A CN201910018152A CN110145296A CN 110145296 A CN110145296 A CN 110145296A CN 201910018152 A CN201910018152 A CN 201910018152A CN 110145296 A CN110145296 A CN 110145296A
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- China
- Prior art keywords
- engine
- drilling rig
- rotary drilling
- control unit
- peripheral control
- 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.)
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Links
- 238000005553 drilling Methods 0.000 title claims abstract description 34
- 238000000034 method Methods 0.000 title claims abstract description 13
- 230000002093 peripheral effect Effects 0.000 claims abstract description 44
- 230000005611 electricity Effects 0.000 claims abstract description 35
- 239000000523 sample Substances 0.000 claims abstract description 9
- 239000010705 motor oil Substances 0.000 claims abstract description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 4
- 230000008450 motivation Effects 0.000 claims description 4
- 238000005086 pumping Methods 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 4
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 238000010276 construction Methods 0.000 description 4
- 239000002689 soil Substances 0.000 description 3
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 238000005728 strengthening Methods 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D29/00—Controlling engines, such controlling being peculiar to the devices driven thereby, the devices being other than parts or accessories essential to engine operation, e.g. controlling of engines by signals external thereto
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D2200/00—Input parameters for engine control
- F02D2200/02—Input parameters for engine control the parameters being related to the engine
- F02D2200/10—Parameters related to the engine output, e.g. engine torque or engine speed
- F02D2200/101—Engine speed
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D2700/00—Mechanical control of speed or power of a single cylinder piston engine
- F02D2700/07—Automatic control systems according to one of the preceding groups in combination with control of the mechanism receiving the engine power
Landscapes
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- Chemical & Material Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Earth Drilling (AREA)
Abstract
The invention discloses the device and methods controlled for rotary drilling rig power limit, device for the control of rotary drilling rig power limit, engine controller including built-in motor control program, for controlling the peripheral control unit and power supply of rotary drilling rig movement, the speed probe for reading engine speed is connected separately on the engine controller, temperature sensor for reading the pressure sensor of engine oil pressure and for reading water temperature, the method of rotary drilling rig power limit control, power, which is absorbed, by main pump electricity proportion magnetic valve is less than engine output under any revolving speed forever, the engine output can be set, it enables the engine to play the work that best power is used for rotary drilling rig, production efficiency is improved to the maximum extent；Greatly prolong the service life of engine；It reduces because of engine accident extinguishing bring major safety risks；The advantages that energy-saving effect is good.
Description
Technical field
The present invention relates to Spiral digging machine engineering machinery fields, in particular to for rotary drilling rig power limit control device and
Method.
Background technique
Rotary drilling rig is a kind of construction machinery of pore-forming operation in suitable building foundation engineering.It is primarily adapted for sand, viscosity
The construction of the soil layers such as soil, slity soil, is used widely in a variety of foundation basic constructions such as bored concrete pile, diaphragm wall, strengthening of foundation,
Meet the requirement of all kinds of large foundation constructions.On rotary drilling rig hydraulic pump power control mode, mechanical adjustment or electricity are mainly used
The mode for borrowing its absorption maximum power is adjusted, is merely able to be fixed in some fixed numbers.Rotary drilling rig is unable to engine cannot
Work is realized on any revolving speed, engine misses occurs, and rotary drilling rig stops working.
Summary of the invention
The technical problem to be solved in the present invention is to provide the device and method controlled for rotary drilling rig power limit, make to send out
Motivation can play work of the best power for rotary drilling rig, improve production efficiency to the maximum extent, greatly prolong engine
Service life, reduce because of engine accident extinguishing bring major safety risks, the advantages that energy-saving effect is good.
The present invention is using the basic ideas of technical solution:
For rotary drilling rig power limit control device, including built-in motor control program engine controller,
For controlling the peripheral control unit and power supply of rotary drilling rig movement, it is connected separately on the engine controller for reading hair
The speed probe of motivation revolving speed, the pressure sensor for reading engine oil pressure and the temperature sensor for reading water temperature,
The peripheral control unit is electrically connected by the first connection bus and engine controller, and the power supply is controlled with engine respectively
Device and peripheral control unit are electrically connected, and the peripheral control unit is equipped with the first pwm signal end, the second pwm signal end, first instead
Feedback signal end and the second feedback signal terminal, first pwm signal end and the second pwm signal end respectively with the first main pump electricity ratio
One end of solenoid valve and the second main pump electricity proportion magnetic valve is electrically connected, the first main pump electricity proportion magnetic valve and the second main pump electricity ratio
The other end of example solenoid valve is electrically connected with the first feedback signal terminal and the second feedback signal terminal respectively.
Further, engine emergency stop switch is electrically connected between the engine controller and power supply.
Further, the engine controller and peripheral control unit are separately connected for showing picture and text and dynamic drawing letter
The display of breath, the display are connected with one end of several intermediate relays, the other end of several intermediate relays and outside
The port of controller is electrically connected, and the display is also electrically connected with the power supply.
Further, the display and peripheral control unit pass through the second connection bus connection.
Further, safety device, the power supply and engine control are connected between the power supply and peripheral control unit
Power safety is connected between device.
Further, emergency stop switch is connected between the positive terminal of the power supply and the input terminal of engine controller.
Method for the control of rotary drilling rig power limit, comprising the following steps:
Step 1): peripheral control unit dynamic reads the engine that engine controller provides and falls fast data, and engine falls speed
The data that data are collected from speed probe；
Step 2): fast data limit value, peripheral control unit read step 1 are set in peripheral control unit) in start
Machine falls fast data and falls fast data limit value lower than described in；
Step 3): peripheral control unit comparison setting fall fast data limit value and the engine of reading falls fast data, when outer
Portion's controller adjusts the first main pump electricity proportion magnetic valve or the second master by the first pwm signal end of output or the second pwm signal end
Pump the setting value of electric proportion magnetic valve, the liquid of both the first main pump electricity proportion magnetic valve or the second main pump electricity proportion magnetic valve connection
Press pump absorbs power, and the engine power output for reaching setting requires.
Further, the engine of step 1) falls fast data and the fast data limit value that falls of step 2) is shown in display respectively
Show.
By adopting the above technical scheme, the engine that the engine controller in above-mentioned device passes through collection speed probe
Revolving speed, power supply is electrically connected with engine controller and peripheral control unit respectively, is set with fast data in peripheral control unit
Limit value, peripheral control unit falls fast data and fall fast data by the engine that engine controller when comparison work provides to be limited
Value, peripheral control unit adjust the first main pump electricity proportion magnetic valve or the by the first pwm signal end of output or the second pwm signal end
The setting value of two main pump electricity proportion magnetic valves, the connection of both the first main pump electricity proportion magnetic valve or the second main pump electricity proportion magnetic valve
Hydraulic pump absorb power, reach setting engine power output require, ensure that the work of rotary drilling rig maximal efficiency.
In addition, the method for rotary drilling rig power limit control disclosed by the invention, is absorbed by main pump electricity proportion magnetic valve
Power is less than engine output under any revolving speed forever, which can set, and enables the engine to play
Best power is used for the work of rotary drilling rig, improves production efficiency to the maximum extent；Greatly prolong the service life of engine；Subtract
Less because of engine accident extinguishing bring major safety risks；The advantages that energy-saving effect is good.
Detailed description of the invention
Fig. 1 is circuit controling drawing of the invention；
Fig. 2 is the portion the A enlarged drawing in Fig. 1 of the invention；
Fig. 3 is the connection circuit block diagram of engine controller of the invention.
Specific embodiment
Specific embodiments of the present invention will be further explained with reference to the accompanying drawing.It should be noted that for
The explanation of these embodiments is used to help understand the present invention, but and does not constitute a limitation of the invention.In addition, disclosed below
The each embodiment of the present invention involved in technical characteristic can be combined with each other as long as they do not conflict with each other.
As shown in Figure 1-3, the invention discloses the device controlled for rotary drilling rig power limit, including built-in motor
Engine controller 1, the peripheral control unit 2 and power supply 3 for controlling rotary drilling rig movement for controlling program, engine controller
Be connected separately on 1 the speed probe 4 for reading engine speed, the pressure sensor 5 for reading engine oil pressure and
For reading the temperature sensor 6 of water temperature, peripheral control unit 2 is electrically connected by the first connection bus and engine controller 1,
Power supply 3 is electrically connected with engine controller 1 and peripheral control unit 2 respectively, and peripheral control unit 2 is equipped with the first pwm signal end
7, the second pwm signal end 8, the first feedback signal terminal 9 and the second feedback signal terminal 10, the first pwm signal end 7 and the 2nd PWM letter
Number end 8 respectively with one end of the first main pump electricity proportion magnetic valve 11 and the second main pump electricity proportion magnetic valve 12 be electrically connected, first
The other end of main pump electricity proportion magnetic valve 11 and the second main pump electricity proportion magnetic valve 12 respectively with the first feedback signal terminal 9 and second
Feedback signal terminal 10 is electrically connected.Engine controller 1 in above-mentioned device is turned by collecting the engine of speed probe 4
Speed, power supply 3 is electrically connected with engine controller 1 and peripheral control unit 2 respectively, is set with fast number in peripheral control unit 2
According to limit value, peripheral control unit 2 falls fast data by the engine that engine controller 1 when comparison work provides and falls fast data
Limit value, peripheral control unit 2 pass through the first pwm signal end 7 of output or the second pwm signal end 8 adjustment the first main pump electricity ratio electricity
The setting value of magnet valve 11 or the second main pump electricity proportion magnetic valve 12, the first main pump electricity proportion magnetic valve 11 or the second main pump electricity ratio
The hydraulic pump of both solenoid valves 12 connection absorbs power, and the engine power output for reaching setting requires, and ensure that rotary drilling rig
The work of maximal efficiency.
In addition, engine emergency stop switch 13 is electrically connected between engine controller 1 and power supply 3, when engine is run out
Operator can press emergency stop switch 13 immediately and stop engine operation when existing failure, increase the safety of Spiral digging machine.Start
By the first connection bus connection, data transmission security is reliable for machine controller 1 and peripheral control unit 2.
Engine controller 1 and peripheral control unit 2 are separately connected the display for showing picture and text and dynamic drawing information
14, display 14 is connected with one end of several intermediate relays, the other end of several intermediate relays and the end of peripheral control unit 2
Mouth is electrically connected, and display 14 is also electrically connected with power supply 3, and display 14 and peripheral control unit 2 pass through the second connection bus
Connection.Display can show the real time data of the collections such as pressure sensor 5, temperature sensor 6, and Spiral digging machine manipulator is more straight
The data for understanding this aspect are seen, adjustment machinery operation is facilitated.
It is connected with safety device 15 between power supply 3 and peripheral control unit 2, is connected between power supply 3 and engine controller 1
Power safety 16 increases safety.
Method for the control of rotary drilling rig power limit, comprising the following steps:
Step 1: the engine that peripheral control unit 2 dynamically reads the offer of engine controller 1 falls fast data, and engine falls speed
The data that data are collected from speed probe 4；
Step 2: being set with fast data limit value in peripheral control unit 2, start in 2 read step 1 of peripheral control unit
Machine falls fast data and is lower than to fall fast data limit value；
Step 3: peripheral control unit 2 comparison setting fall fast data limit value and the engine of reading falls fast data, when outer
Portion's controller 2 adjusts the first main pump electricity proportion magnetic valve 11 or the by the first pwm signal end 7 of output or the second pwm signal end 8
The setting value of two main pump electricity proportion magnetic valves 12, the first main pump electricity proportion magnetic valve 11 or the second 12 liang of main pump electricity proportion magnetic valve
The hydraulic pump of person's connection absorbs power, and the engine power output for reaching setting requires.
The engine of step 1 falls fast data and the fast data limit value that falls of step 2 is shown in display 14 respectively.
It is eternal to absorb power by main pump electricity proportion magnetic valve for the method for rotary drilling rig power limit control disclosed above
Less than engine output under any revolving speed, which can be set, and enable the engine to play best power
For the work of rotary drilling rig, production efficiency is improved to the maximum extent；Greatly prolong the service life of engine；It reduces because starting
Machine accident extinguishing bring major safety risks；The advantages that energy-saving effect is good.
In conjunction with attached drawing, the embodiments of the present invention are described in detail above, but the present invention is not limited to described implementations
Mode.For a person skilled in the art, in the case where not departing from the principle of the invention and spirit, to these embodiments
A variety of change, modification, replacement and modification are carried out, are still fallen in protection scope of the present invention.
Claims (7)
1. the device for the control of rotary drilling rig power limit, it is characterised in that: including starting for built-in motor control program
Machine controller (1), peripheral control unit (2) and power supply (3) for controlling rotary drilling rig movement, the engine controller (1)
On be connected separately with the speed probe (4) for reading engine speed, the pressure sensor (5) for reading engine oil pressure
And the temperature sensor (6) for reading water temperature, the peripheral control unit (2) pass through the first connection bus and engine controller
(1) it is electrically connected, the power supply (3) is electrically connected with engine controller (1) and peripheral control unit (2) respectively, the outside
Controller (2) is equipped with the first pwm signal end (7), the second pwm signal end (8), the first feedback signal terminal (9) and the second feedback
Signal end (10), first pwm signal end (7) and the second pwm signal end (8) respectively with the first main pump electricity proportion magnetic valve
(11) and one end of the second main pump electricity proportion magnetic valve (12) is electrically connected, the first main pump electricity proportion magnetic valve (11) and the second master
The other end for pumping electric proportion magnetic valve (12) electrically connects with the first feedback signal terminal (9) and the second feedback signal terminal (10) respectively
It connects.
2. the device according to claim 1 for the control of rotary drilling rig power limit, it is characterised in that: the engine
Engine emergency stop switch (13) are electrically connected between controller (1) and power supply (3).
3. the device according to claim 1 for the control of rotary drilling rig power limit, it is characterised in that: the engine
Controller (1) and peripheral control unit (2) are separately connected the display (14) for showing picture and text and dynamic drawing information, described aobvious
Show that device (14) is connected with one end of several intermediate relays, the other end of several intermediate relays and the end of peripheral control unit (2)
Mouth is electrically connected, and the display (14) is also electrically connected with power supply (3).
4. the device according to claim 1 for the control of rotary drilling rig power limit, it is characterised in that: the display
(14) and peripheral control unit (2) passes through the second connection bus connection.
5. the device according to claim 1 for the control of rotary drilling rig power limit, it is characterised in that: the power supply
(3) and between peripheral control unit (2) it is connected with safety device (15), is connected between the power supply (3) and engine controller (1)
There are power safety (16).
6. the method for the control of rotary drilling rig power limit, it is characterised in that: the following steps are included:
Step 1): peripheral control unit (2) dynamic reads the engine that engine controller (1) provides and falls fast data, and engine falls
Fast data come from the data that speed probe (4) are collected；
Step 2): fast data limit value, peripheral control unit (2) read step 1 are set in peripheral control unit (2)) in hair
Motivation falls fast data and falls fast data limit value lower than described in；
Step 3): peripheral control unit (2) comparison setting fall fast data limit value and the engine of reading falls fast data, work as outside
Controller (2) adjusts the first main pump electricity proportion magnetic valve by the first pwm signal end (7) of output or the second pwm signal end (8)
(11) or the setting value of the second main pump electricity proportion magnetic valve (12), the first main pump electricity proportion magnetic valve (11) or the second main pump electricity ratio
The hydraulic pump of both example solenoid valves (12) connection absorbs power, and the engine power output for reaching setting requires.
7. the method according to claim 7 for the control of rotary drilling rig power limit, it is characterised in that: the hair of step 1)
Motivation falls fast data and the fast data limit value that falls of step 2) is shown in display (14) respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910018152.7A CN110145296A (en) | 2019-01-09 | 2019-01-09 | Device and method for the control of rotary drilling rig power limit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910018152.7A CN110145296A (en) | 2019-01-09 | 2019-01-09 | Device and method for the control of rotary drilling rig power limit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110145296A true CN110145296A (en) | 2019-08-20 |
Family
ID=67589477
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910018152.7A Pending CN110145296A (en) | 2019-01-09 | 2019-01-09 | Device and method for the control of rotary drilling rig power limit |
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| CN (1) | CN110145296A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110985219A (en) * | 2019-09-02 | 2020-04-10 | 鹤山市厚积工程机械有限公司 | Device for enabling engine of rotary drilling rig to enter idle speed |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005048623A (en) * | 2003-07-31 | 2005-02-24 | Mazda Motor Corp | Control device of hybrid vehicle |
| US20100109344A1 (en) * | 2008-10-30 | 2010-05-06 | Caterpillar Inc. | Power system having transient control |
| CN101988434A (en) * | 2009-08-05 | 2011-03-23 | 上海派芬自动控制技术有限公司 | Method and system for controlling limit load |
| CN102505996A (en) * | 2011-11-28 | 2012-06-20 | 上海中联重科桩工机械有限公司 | Power matching system and method for electric control engine and variable hydraulic pump |
| CN105402039A (en) * | 2015-12-21 | 2016-03-16 | 徐州燕大传动与控制技术有限公司 | Power matching method based on torque and rotation speed compound control for rotary drilling rig |
| CN106542450A (en) * | 2016-03-02 | 2017-03-29 | 徐工集团工程机械有限公司 | Rotary drilling rig and its anti-lost speed control method, device and system |
-
2019
- 2019-01-09 CN CN201910018152.7A patent/CN110145296A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005048623A (en) * | 2003-07-31 | 2005-02-24 | Mazda Motor Corp | Control device of hybrid vehicle |
| US20100109344A1 (en) * | 2008-10-30 | 2010-05-06 | Caterpillar Inc. | Power system having transient control |
| CN101988434A (en) * | 2009-08-05 | 2011-03-23 | 上海派芬自动控制技术有限公司 | Method and system for controlling limit load |
| CN102505996A (en) * | 2011-11-28 | 2012-06-20 | 上海中联重科桩工机械有限公司 | Power matching system and method for electric control engine and variable hydraulic pump |
| CN105402039A (en) * | 2015-12-21 | 2016-03-16 | 徐州燕大传动与控制技术有限公司 | Power matching method based on torque and rotation speed compound control for rotary drilling rig |
| CN106542450A (en) * | 2016-03-02 | 2017-03-29 | 徐工集团工程机械有限公司 | Rotary drilling rig and its anti-lost speed control method, device and system |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110985219A (en) * | 2019-09-02 | 2020-04-10 | 鹤山市厚积工程机械有限公司 | Device for enabling engine of rotary drilling rig to enter idle speed |
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| PB01 | Publication | ||
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190820 |
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