CN103277307B - A kind of multifunctional drill oil pump driving control system - Google Patents
A kind of multifunctional drill oil pump driving control system Download PDFInfo
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- CN103277307B CN103277307B CN201310168930.3A CN201310168930A CN103277307B CN 103277307 B CN103277307 B CN 103277307B CN 201310168930 A CN201310168930 A CN 201310168930A CN 103277307 B CN103277307 B CN 103277307B
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Abstract
The invention discloses a kind of multifunctional drill oil pump driving control system, it is connected to drilling rig hydraulic system, comprise controller, frequency variator, variable-frequency motor and oil pump, wherein, controller is crossed and is transmitted a frequency conversion adjustment signal to frequency variator, frequency variator receives and goes to adjust the working power frequency of variable-frequency motor according to this frequency conversion adjustment signal and then change the rotating speed of variable-frequency motor, thus changes the output flow of the oil pump be connected with variable-frequency motor.The invention has the advantages that by change oil pump driving mode multifunctional drill is had can soft start, soft stop only, non-impact current and can the advantage of stepless time adjustment, service behaviour has had obvious improvement relative to prior art, failure rate is low, and equipment economical operation, energy consumption is low, and energy-saving effect is remarkable.
Description
Technical field
The present invention relates to engineering machinery field, particularly relate to a kind of oil pump driving control system of multifunctional drill integrating long-spiral drilling machine, rotary drilling rig, hydraulic vibration driver.
Background technique
At present, in piling machinery industry, long-spiral drilling machine, rotary drilling rig, hydraulic vibration driver etc. are conventional several machine, mostly those are several is adopt common three phase alternating current motor to go drive oil pump power mechanism and then provide power source, but because this power mechanism is permanent torque system, therefore it has power greatly, opens, stops the features such as rush of current is large, the shortcomings such as it is high that corresponding its exists energy consumption, and rate of fault is high.
In addition, what the mode of speed regulation due to those machines generally adopted is have a grade step-down, the i.e. mode of speed regulation of the three phase alternating current motor that a kind of Frequency Converter Control is common, but, the speed adjustable range of three phase alternating current motor common in reality is only limited between 30Hz-50Hz, therefore its torque that three phase alternating current motor exports while reduction of speed also can and then decline, this runs counter to the requirement that permanent torque output is permanent torque.
In sum, therefore how to reduce the consumption of the energy and the rate of fault of machine, realize stepless time adjustment, the requirement providing permanent torque to export is problem demanding prompt solution for above-mentioned several machine.
Summary of the invention
Based on the problem existing for prior art, the object of the present invention is to provide a kind of multiple mechanical functions such as long-spiral drilling machine, rotary drilling rig, hydraulic vibration driver of integrating, and energy consumption is low and service behaviour is strong, failure rate is low, more meets the multifunctional drill oil pump driving control system that permanent torque output is permanent torque requirement.
To achieve these goals, present invention employs following technical proposals:
A kind of multifunctional drill oil pump driving control system of the present invention, be connected to drilling rig hydraulic system, comprise controller, frequency variator, variable-frequency motor and oil pump, wherein, controller is crossed and is transmitted a frequency conversion adjustment signal to frequency variator, frequency variator receives and goes to adjust the working power frequency of variable-frequency motor according to this frequency conversion adjustment signal and then change the rotating speed of variable-frequency motor, thus changes the output flow of the oil pump be connected with variable-frequency motor.
Further, described controller is programmable logic controller (PLC).
Further, described frequency variator is vector-control frequency converter.
Further, described oil pump is combination triple gear pump.
Further, also comprise a display device, it is connected with controller.
Further, also comprise a warning device, it is connected to controller.
Multifunctional drill of the present invention has the following advantages:
(1) compared to diesel oil as power source more environmental protection and energy saving, economical and practical, and start and stop all very steady, and without heavy current impact;
(2) therefore can stepless speed regulation owing to electrically driving, speed adjustable range is large, and reliable operation, long-time running stability is strong, and mechanical life is long;
(3) manipulation is simple, and automaticity is high, and regular maintenance amount is few, and output characteristics meets load performance requirement.
Accompanying drawing explanation
Fig. 1 is the function block diagram of multifunctional drill oil pump driving control system of the present invention;
Fig. 2 is the electrical connection schematic diagram of multifunctional drill oil pump driving control system of the present invention.
Embodiment
Below in conjunction with accompanying drawing and specific embodiment, multifunctional drill oil pump driving control system of the present invention is described in further detail.
The present invention is mainly that to there is power for existing multifunctional drill large, start and stop the various shortcoming youngsters such as rush of current is large to improve, it drives the mode of oil pump by variable-frequency motor, multifunctional drill can be had softly to open, stops, equal non-impact current and stepless time adjustment.
Shown in Fig. 1, control system of the present invention comprises controller 10, frequency variator 20, variable-frequency motor 30 and oil pump 40; Wherein, controller 10 is mainly in order to produce a frequency conversion adjustment signal, and this signal sends to frequency variator 20 by circuit; Frequency variator 20 receives this frequency conversion adjustment signal and starts to adjust the power supply frequency of variable-frequency motor 30, and then the rotating speed of variable-frequency motor 30 also changes thereupon, from changing oil pump 40 output flow be connected with variable-frequency motor 30 further.
In practical application, described controller 10 is for adopting programmable logic controller (PLC), start button set on itself and multifunctional drill operating table is electrical connected, when multifunctional drill operates, staff only need press this button, namely described controller 10 can produce the control signal changing Frequency, the i.e. actuating signal of frequency variator 20, this actuating signal sends to frequency variator 20 by circuit, immediately, frequency variator 20 internal processes starts computing and exports a frequency values be suitable for variable-frequency motor 30, its rotating speed is changed, and then changes the flow of oil pump 40 output.Wherein, the program in described controller 10 be in advance design and in burned controller chip, the MV300 Series Universal vector-control frequency converter that described frequency variator 20 can adopt Mai Ge meter Te actuation techniques Co., Ltd to produce.
In addition, oil pump 40 of the present invention can adopt combination triple gear pump.
In the present invention, in order to prevent frequency variator 20 short circuit in running, its current input terminal adopt be air-break switch as short-circuit protection, again, in order to ensure frequency variator 20 electric current survey harmonic component be less than 5%, in the circuit of frequency variator 20, installed reactor additional.When multifunctional drill is started working, controller starts, variable-frequency motor 30 is pre-set, namely operate under the frequent rate of benchmark, in the present invention, this reference frequency is set as 10 hertz, simultaneously, manipulation personnel can the DC input voitage value of manual tune 0 ~ 10 volt according to actual needs, this DC voltage value inputs to controller 10 further, controller 10 carries out analysis and calculation after receiving this VDC, synchronously run according to the output control frequency variator 20 after analysis and calculation, thus regulate the rotating speed of variable-frequency motor 30 exactly, finally make the Amount of actual oil supply of oil pump 40 consistent with the working flow demand of multifunctional drill.
Frequency variator 20 is while change variable-frequency motor 30, and the current signal that also can export 0 ~ 20 milliampere carries out processing to controller 10 and exports on display device 50 and shows, thus is convenient to the working condition that rig personnel understands frequency variator 20 at any time; In addition, frequency variator 20 place also can produce a pulse signal, and this pulse signal can be input to controller 10 and wherethrough reason, is converted into rate signal, and is converted into flow value further and is sent on display device 50 by this pulse signal.
In addition, take full advantage of the output terminal of frequency variator 20 in the present invention, manipulate personnel to greatly facilitate rig know in time and process the fault of frequency variator 20, frequency variator 20 output terminal of the present invention also can arrange and transmit trouble signal to controller 10, then by this controller 10, this trouble signal is sent to display on display device 50.
For above-mentioned, the present invention can also arrange a warning device 60 in rig, this warning device 60 is connected with controller 10, receive when controller 10 trouble signal that frequency variator 20 carries and be treatedly sent to the display of display device 50 place simultaneously, also transmit an alarm signal and give audio alert to warning device 60, in real operation, this warning device 60 can be a loudspeaker.
The foregoing is only the preferred embodiments of the present invention; not thereby the scope of the claims of the present invention is limited; every utilize specification of the present invention and accompanying drawing content to do equivalent structure or equivalent flow process conversion; or be directly or indirectly used in other relevant technical fields, be all in like manner included in scope of patent protection of the present invention.
Claims (1)
1. a multifunctional drill oil pump driving control system, be connected to drilling rig hydraulic system, it is characterized in that, comprise controller, frequency variator, variable-frequency motor and oil pump, wherein, controller transmits a frequency conversion adjustment signal to frequency variator, frequency variator receives and goes to adjust the working power frequency of variable-frequency motor according to this frequency conversion adjustment signal and then change the rotating speed of variable-frequency motor, thus change the output flow of the oil pump be connected with variable-frequency motor, also comprise a display device and a warning device, it is connected with controller respectively; Described oil pump is combination triple gear pump;
Described controller is programmable logic controller (PLC), start button set on itself and multifunctional drill operating table is electrical connected, when multifunctional drill operates, only need press this button, namely described controller can produce the control signal changing Frequency, the i.e. actuating signal of frequency variator, this actuating signal sends to frequency variator by circuit, immediately, frequency variator internal processes starts computing and exports a frequency values be suitable for variable-frequency motor, its rotating speed is changed, and then changes the flow of oil pump output;
Described frequency variator is Vector Control Frequency Conversion, its current input terminal adopt be air-break switch as short-circuit protection, in order to ensure inverter current survey harmonic component be less than 5%, in the circuit of frequency variator, installed reactor additional;
Receive the trouble signal of frequency variator conveying when controller and be treatedly sent to the display of display device place simultaneously, also transmitting an alarm signal and give audio alert to warning device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310168930.3A CN103277307B (en) | 2013-05-09 | 2013-05-09 | A kind of multifunctional drill oil pump driving control system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310168930.3A CN103277307B (en) | 2013-05-09 | 2013-05-09 | A kind of multifunctional drill oil pump driving control system |
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| Publication Number | Publication Date |
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| CN103277307A CN103277307A (en) | 2013-09-04 |
| CN103277307B true CN103277307B (en) | 2015-10-14 |
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| CN201310168930.3A Expired - Fee Related CN103277307B (en) | 2013-05-09 | 2013-05-09 | A kind of multifunctional drill oil pump driving control system |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104035371B (en) * | 2014-04-29 | 2016-08-24 | 西北工业大学 | A kind of system and method based on active disturbance rejection method suppression drilling rod stick slip vibration |
| CN104235014B (en) * | 2014-08-28 | 2016-08-24 | 北京动力机械研究所 | The method for adjusting rotation speed of electrodynamic pump and system |
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| CN2881093Y (en) * | 2005-12-08 | 2007-03-21 | 大庆石油管理局 | PLC control system of drilling machine |
| CN201783673U (en) * | 2010-08-27 | 2011-04-06 | 玉环县新跃机床有限公司 | Self-adjusting constant-pressure cooling system for deep-hole drilling |
| WO2011148053A1 (en) * | 2010-05-25 | 2011-12-01 | Sandvik Mining And Construction Oy | Rock drilling rig and method for positioning the same |
| CN202194568U (en) * | 2011-08-16 | 2012-04-18 | 中国石油集团川庆钻探工程有限公司 | Variable frequency driving device of drilling machine oil-to-electricity equipment |
| CN202325463U (en) * | 2011-11-07 | 2012-07-11 | 西安曼海特工业技术有限公司 | Automation and control device of variable-frequency drilling rig |
| CN203326953U (en) * | 2013-05-09 | 2013-12-04 | 恒天九五重工有限公司 | Oil pump drive control system for multifunctional drilling machine |
-
2013
- 2013-05-09 CN CN201310168930.3A patent/CN103277307B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2881093Y (en) * | 2005-12-08 | 2007-03-21 | 大庆石油管理局 | PLC control system of drilling machine |
| WO2011148053A1 (en) * | 2010-05-25 | 2011-12-01 | Sandvik Mining And Construction Oy | Rock drilling rig and method for positioning the same |
| CN201783673U (en) * | 2010-08-27 | 2011-04-06 | 玉环县新跃机床有限公司 | Self-adjusting constant-pressure cooling system for deep-hole drilling |
| CN202194568U (en) * | 2011-08-16 | 2012-04-18 | 中国石油集团川庆钻探工程有限公司 | Variable frequency driving device of drilling machine oil-to-electricity equipment |
| CN202325463U (en) * | 2011-11-07 | 2012-07-11 | 西安曼海特工业技术有限公司 | Automation and control device of variable-frequency drilling rig |
| CN203326953U (en) * | 2013-05-09 | 2013-12-04 | 恒天九五重工有限公司 | Oil pump drive control system for multifunctional drilling machine |
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