CN103089872A - Oil field pumping unit braking device and intelligent control system thereof - Google Patents
Oil field pumping unit braking device and intelligent control system thereof Download PDFInfo
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- CN103089872A CN103089872A CN2011103496039A CN201110349603A CN103089872A CN 103089872 A CN103089872 A CN 103089872A CN 2011103496039 A CN2011103496039 A CN 2011103496039A CN 201110349603 A CN201110349603 A CN 201110349603A CN 103089872 A CN103089872 A CN 103089872A
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- braking
- electromagnetic brake
- braking device
- brake
- speed reducer
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Abstract
The invention discloses an oil field pumping unit braking device and an intelligent control system thereof. The oil field pumping unit braking device and the intelligent control system are installed on a reducer. The braking device adopts an electromagnetic brake to control operation and shutdown of the reducer. An electrical control gear of the intelligent control system is electrically connected with the electromagnetic brake and provided with a servo driver and an overload protecting circuit. The overload protecting circuit is used for disconnecting an output relay so as to brake the electromagnetic brake immediately when motor current exceeds a set range. Mechanical automatic control of the reducer of the pumping unit is achieved, and purposes of achieving automatic braking, eliminating potential safety hazards and guaranteeing safety reliability when a sucker rod is broken and released accidentally during a period when the pumping unit is operated in unattended mode are achieved.
Description
Technical field
The present invention relates to a kind of oil-field oil pumper braking device used, and the intelligent system of controlling braking device.
Background technique
At present, what oil-field oil pumper used is traditional manpower manual braking device substantially, and a kind of is to embrace the formula break, and a kind of is expanding brake.Their basic Der Grundsatz der Maschinen makes brake shoe and brake drum produce frictional force by manpower exactly, the realization braking.The deficiency of this device: operation inconvenience, relatively effort, safety reliability poor, have hidden danger etc.And, because the break (hand brake) of conventional pumping unit is to adopt mechanical type, by manually operating, to the pumping unit run duration, unexpected disconnected the taking off of sucker rod makes counterweight fall rapidly, pumping unit moment disequilibrium often causes the accidents such as the damage of pumping unit mechanical part or overturning.
Summary of the invention
In order to overcome defects, the invention provides a kind of braking device and intelligent control system that can realize the unartificial control of pumping unit, the safety reliability problem during with the automatic control that solves pumping unit and operation.
For achieving the above object, the invention provides following technological scheme:
A kind of oil pumping in oil fields machine braking device is arranged on speed reducer, and braking device adopts electromagnetic brake control the braking of speed reducer and remove braking.
Further, described electromagnetic brake comprises main brake disk, braking plate and is braked dish, and described braking plate is connected with the input shaft of described speed reducer, and the described dish that is braked passes the input shaft of described speed reducer and is connected with the casing of described speed reducer.
Further, the described dish that is braked is connected with the casing of described speed reducer by changeover panel.Preferably, the described dish that is braked is connected as a single entity by supporting element with described changeover panel.
Further, described braking plate is fixed in the input shaft of described speed reducer in the spline joint mode by external tooth cover.
Further, be provided with 2 in the housing of described electromagnetic brake and add and turn round bolt, the described front end of turning round bolt that adds acts on the movement that described brake disc can form certain distance, with the braking state that locks described electromagnetic brake with remove braking state.
Further, also comprise the combination of magnetic hoop in the housing of described electromagnetic brake, described main brake disk and the combination of magnetic hoop discharge bolt-locking by braking and are integral; Described main brake disk, be braked between dish and braking plate and produce by closed the running that frictional force stops speed reducer, and by electromagnetic force, certain distance is opened in the main brake disk suction described braking plate is turned round with described input shaft.
The present invention also provides a kind of oil pumping in oil fields machine braking device intelligent control system, comprises above-described braking device and electric control equipment, and described electric control equipment and described electromagnetic brake are electrically connected; Described electric control equipment is provided with servo driver and overload protecting circuit, and when described overload protecting circuit surpassed for current of electric the scope that sets, output relay disconnected so that described electromagnetic brake is braked at once.
Further, described overload protecting circuit is: described servo driver is provided with two tenminal block BK1, BK2 that connect described electromagnetic brake, and the action of described electromagnetic brake is controlled by auxiliary reclay KL; When KL connects, electromagnetic brake take-off the brake sheet; When KL disconnects, the closed braking plate of electromagnetic brake;
Wherein, KL is controlled by contact KM2 and k1, k2 two contacts, and k1, k2 connect the inner normally opened relay of servo driver; When motor load surpassed the scope that sets, the servo driver internal relay discharged, and disconnects between k1, k2, and KL cuts off the power supply immediately, and electromagnetic brake cuts off the power supply thereupon.
Further, the control mode of described electric control equipment comprises energy saver mode and power frequency pattern; Described servo driver is connected with the energy consumption feedback unit;
Described energy consumption feedback unit, when being used for speed that oil pump running speed sets greater than control, when described servo driver is controlled motor and is kept original speed, with its energy feedback that feeds back to electrical network.
For the traditional manpower manual braking device of pumping unit; the deficiency and the problem that exist; the problems such as the present invention adopts electromagnetic brake to be used for the braking device of pumping unit, can get rid of well that pumping unit is conventional shuts down the operation inconvenience that faces, and relatively effort, human factor be large.Further, intelligent control system provided by the invention during also having solved especially pumping unit operation and unmanned, when unexpected disconnected the taking off of sucker rod occurs, can realize Braking mode, has eliminated potential safety hazard, and safety reliability is guaranteed.The present invention is specially adapted to single head or double end beam pumping unit.
Description of drawings
Fig. 1 is structural representation of the present invention;
Fig. 2 is that the A-A of Fig. 1 is to view;
Fig. 3 is the decomposing schematic representation of structure of the present invention;
Fig. 4 is the structural representation of electromagnetic brake in the embodiment of the present invention;
Fig. 5 is the side view of Fig. 4;
Fig. 6 is the electrical schematic diagram of the control cabinet of intelligent control system of the present invention.
Embodiment
Main thought of the present invention is to change traditional manual control mode, controls the running of speed reducer and stops by electromagnetic brake is installed on the input shaft of pumping unit speed reducer.Below embodiment is described in detail, but not as a limitation of the invention.
As shown in Fig. 1-5, the invention provides a kind of pumping unit braking device, be applied to oil-field oil pumper.Braking device comprises speed reducer 1 and the electromagnetic brake 2 on pumping unit.The function of this described electromagnetic brake 2 is to make speed reducer 1 to shut down within very short time, and also lock is firmly motionless.In the present embodiment, electromagnetic brake 2 comprises main brake disk 21, braking plate 22, is braked dish 23 and magnetic hoop combination 24, this magnetic hoop combination 24 can be adopted any electromagnetic brake of the prior art, composite structure such as the spring 241 that uses in the present embodiment and yoke 243, its effect is exactly: during energising, utilize electromagnetic force to produce suction, main brake disk 21 Compress Springs 241 make between main brake disk 21 and braking plate 22 and produce distance; During outage, the restoring force of spring 241 promotes main brake disk 21, until main brake disk 21 is squeezed in braking plate 22.Braking plate 22 is placed on the input shaft 11 of speed reducer, and is fixed on the input shaft 11 of speed reducer in the spline mode by external tooth cover 25; Main brake disk 21 and magnetic hoop combination 24 discharge bolt 5 lockings by braking and are integral, and are placed in a shell 26.Main brake disk 21 be braked between dish 23 by hexagon socket head cap screw 6 be connected adjusting bolt 7 and carry out the gap and be connected, as long as the gap can guarantee the braking distance of main brake disk 21, such as, the gap is 1-2mm.Be braked dish 23 and be connected with box body of speed reducer 12 by changeover panel 3, this changeover panel 3 is provided with 6 fixed holes, and 6 corresponding bolts 4 are fixed in changeover panel 3 on described box body of speed reducer 12.Preferably, be braked dish 23 and be connected as a single entity by supporting element 31 with described changeover panel 3, can guarantee better to be braked like this dish 23 and the coaxial installation of speed reducer input shaft 11.Install and mix up brake disc 21 and braking plate 22 gaps, take-off the brake discharges bolt 5, and this moment, after control cabinet was to electromagnetic brake 2 power supplies, braking was removed in braking state, and pumping unit enters accurate running state.
Speed reducer input shaft 11 is connected with braking plate 22, whole electromagnetic brake 2 is fixed on box body of speed reducer 12, when electromagnetic brake 2 is cold, main brake disk 21, be braked the dish 23 and braking plate 22 between, closed under the pressure of spring 241, produce powerful frictional force, stop the running of speed reducer.After electromagnetic brake 2 energisings, the magnetic force that electric current produces through coil is inhaled main brake disk 21 and is opened 1～2mm, after braking plate 22 has lacked the resistance of main brake, just can freely turn round.
In order to guarantee the safety guarantee of pumping unit, be provided with 2 in the housing 26 of described electromagnetic brake and add and turn round bolt 8, the described front end of turning round bolt 8 that adds acts on described main brake disk 21, and can form moving forward and backward of certain distance.Add and turn round bolt 8 and adopt manual modes to operate, when the forward precession, add and turn round bolt 8 and squeeze and push away main brake disk 21 until with braking plate 22 lockings, the braking state of the described electromagnetic brake of locking; Otherwise, brake off state.
In order to realize the safe handling of above-mentioned further assurance braking device, the present invention is directed to braking device and adopted intelligent control, basic technical scheme is: when 1. control cabinet was powered, electromagnetic brake was brake off, and pumping unit enters running state, outage is braking at once; 2. due to the Real-Time Monitoring of control system, at pumping unit operation and unmanned, when unexpected disconnected the taking off of sucker rod occurs when, the electromagnetism self acting brake can be braked at once, pumping unit is slowed down under the resistance of braking brake to equinoctial point stop, thereby avoided the pumping unit mechanical part to damage or the generation of the accidents such as overturning.
As shown in Figure 6, the 380V power supply of three-phase four-wire system is opened QS1 access point table from L1, L2, L3, N input through total lock sky.SB1 above panel is system's stop button, and SB2 is system's start button, and SB3 is the pattern switch knob, is used for energy saver mode with the switching of power frequency pattern.
Press SB1 pushbutton enable system, the closed self-locking of the auxiliary normally opened contact of KM1 simultaneously, system gets electric work.KM2 and KM3 carry out logical interlock on circuit, be used for the switching of control mode, cause power supply short circuit when preventing switch mode.When SB3 switches to energy saver mode, the closed self-locking of KM3, the normally-closed contact of KM3 disconnects simultaneously, makes KM2 disconnect control loop, and motor accesses servo driver by KM3, and servo driver and energy consumption feedback unit are devoted oneself to work.
According to operating mode, the current/voltage of the real-time regulation output of servo driver, constantly keeping the active power of motor is the optimum state.When counterweight of oil pumping unit does not mate, when downhole environment changes, the speed that certainly will cause oil pump running speed to set greater than control, when this moment, servo driver was controlled the original speed of motor maintenance, its energy that feeds back is fed back to electrical network through feedback unit, allow system save the energy spending of half operation cycle, thereby reach further power saving effect.
If when having cause specific not adopt energy saver mode, SB3 can be switched to the power frequency pattern, press the SB1 halt system, after system stops, again pressing SB2 and start system, KM2 is closed, and KM3 disconnects, and motor directly accesses the electrical network running by KM2.
Described servo driver is provided with BK1, two tenminal blocks of BK2, connects outside described electromagnetic brake; The action of described electromagnetic brake is controlled by auxiliary reclay KL; When KL connects, electromagnetic brake take-off the brake sheet; When KL disconnects, the closed braking plate of electromagnetic brake; Wherein, KL is controlled by contact KM2 and k1, k2 two contacts, and k1, k2 connect the inner normally opened relay of servo driver; When adopting the power frequency pattern, KM2 is closed, when powering to motor, connects KL closed, and BK1, BK2 output voltage are given outside electromagnetic brake, make its take-off the brake sheet; When adopting energy saver mode, servo driver is guaranteeing the output voltage control motor, and in trouble-free situation, closed internal relay is connected k1, k2 2 points, and closed KL gives outside electromagnetic brake power supply take-off the brake sheet by BK1, BK2; Under energy saver mode; servo driver is being controlled running voltage and the electric current of motor constantly, when the disconnected bar of appearance, when perhaps other mechanical failures occur; sudden change due to motor load; cause the variation of electric current, when surpassing the scope that sets, servo jumping error protection; internal relay discharges; disconnect between k1, k2, KL cuts off the power supply immediately, the electromagnetic brake locking of also cutting off the power supply.Pumping unit slowly slides into down equinoctial point under the resistance of electromagnetic brake brake.Thereby play a protective role.
Touch screen directly adopts the 24V Power supply of servo driver inside, and adopts 485 buses between servo driver, the communication of MODEBUS communication protocol.The simplification system controls, and simultaneously the real-time current of motor, voltage, rotating speed etc. is read from driver, and then the mode with chart shows, and facilitates the analysis of data.
Certainly; the present invention also can have other various embodiments; in the situation that do not deviate from spirit of the present invention and essence thereof; those of ordinary skill in the art can make according to the present invention various corresponding changes and distortion, but these corresponding changes and distortion all should belong to the protection domain of the appended claim of the present invention.
Claims (10)
1. an oil pumping in oil fields machine braking device, be arranged on speed reducer, it is characterized in that: braking device adopts electromagnetic brake control the braking of speed reducer and remove braking.
2. braking device as claimed in claim 1, it is characterized in that: described electromagnetic brake comprises main brake disk, braking plate and is braked dish, described braking plate is connected with the input shaft of described speed reducer, and the described dish that is braked passes the input shaft of described speed reducer and is connected with the casing of described speed reducer.
3. braking device as claimed in claim 2 is characterized in that: the described dish that is braked is connected with the casing of described speed reducer by changeover panel.
4. braking device as claimed in claim 3 is characterized in that: the described dish that is braked is connected as a single entity by supporting element with described changeover panel.
5. as arbitrary described braking device in claim 2-4, it is characterized in that: described braking plate is fixed in the input shaft of described speed reducer in the spline joint mode by external tooth cover.
6. as arbitrary described braking device in claim 2-4, it is characterized in that, being provided with 2 in the housing of described electromagnetic brake adds and turns round bolt, the described front end of turning round bolt that adds acts on the movement that described brake disc can form certain distance, with braking state and the releasing braking state that locks described electromagnetic brake.
7. braking device as claimed in claim 6 is characterized in that: also comprise the combination of magnetic hoop in the housing of described electromagnetic brake, described main brake disk and the combination of magnetic hoop discharge bolt-locking by braking and are integral; Described main brake disk, be braked between dish and braking plate and produce by closed the running that frictional force stops speed reducer, and by electromagnetic force, certain distance is opened in the main brake disk suction described braking plate is turned round with described input shaft.
8. oil pumping in oil fields machine braking device intelligent control system, it is characterized in that: intelligent control system comprises the described braking device of claim 1-7 and electric control equipment, described electric control equipment and described electromagnetic brake are electrically connected; Described electric control equipment is provided with servo driver and overload protecting circuit, and when described overload protecting circuit surpassed for current of electric the scope that sets, output relay disconnected so that described electromagnetic brake is braked at once.
9. intelligent control system as claimed in claim 8, it is characterized in that: described overload protecting circuit is: described servo driver is provided with two tenminal block BK1, BK2 that connect described electromagnetic brake, and the action of described electromagnetic brake is controlled by auxiliary reclay KL; When KL connects, electromagnetic brake take-off the brake sheet; When KL disconnects, the closed braking plate of electromagnetic brake;
Wherein, KL is controlled by contact KM2 and k1, k2 two contacts, and k1, k2 connect the inner normally opened relay of servo driver; When motor load surpassed the scope that sets, the servo driver internal relay discharged, and disconnects between k1, k2, and KL cuts off the power supply immediately, and electromagnetic brake cuts off the power supply thereupon.
10. intelligent control system as claimed in claim 8 or 9, it is characterized in that: the control mode of described electric control equipment comprises energy saver mode and power frequency pattern; Described servo driver is connected with the energy consumption feedback unit;
Described energy consumption feedback unit, when being used for speed that oil pump running speed sets greater than control, when described servo driver is controlled motor and is kept original speed, with its energy feedback that feeds back to electrical network.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110349603.9A CN103089872B (en) | 2011-11-08 | 2011-11-08 | Oil pumping in oil fields machine braking device and intelligent control system thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110349603.9A CN103089872B (en) | 2011-11-08 | 2011-11-08 | Oil pumping in oil fields machine braking device and intelligent control system thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103089872A true CN103089872A (en) | 2013-05-08 |
| CN103089872B CN103089872B (en) | 2016-03-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110349603.9A Active CN103089872B (en) | 2011-11-08 | 2011-11-08 | Oil pumping in oil fields machine braking device and intelligent control system thereof |
Country Status (1)
| Country | Link |
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| CN (1) | CN103089872B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103322095A (en) * | 2013-06-27 | 2013-09-25 | 恩博沃克（北京）科技发展有限公司 | One-touch smart brake device of pumping unit |
| WO2016015534A1 (en) * | 2014-07-31 | 2016-02-04 | 孙宝利 | Braking device for oil field pumping unit and intelligent control system thereof |
| CN110159389A (en) * | 2019-05-23 | 2019-08-23 | 潍柴动力股份有限公司 | Oil pump drive gear installation method and Oil pump drive gear mounting structure |
| US11955782B1 (en) | 2022-11-01 | 2024-04-09 | Typhon Technology Solutions (U.S.), Llc | System and method for fracturing of underground formations using electric grid power |
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| JPH10159882A (en) * | 1996-12-02 | 1998-06-16 | Fuji Electric Co Ltd | Electromagnetic brake device |
| CN200996421Y (en) * | 2006-12-11 | 2007-12-26 | 刘硕毅 | Power-off friction brake |
| CN201184290Y (en) * | 2008-04-09 | 2009-01-21 | 姜银生 | Electromagnetic brake of oil pumping machine |
| CN202441784U (en) * | 2011-11-08 | 2012-09-19 | 孙宝利 | Brake apparatus of oil pumping unit and intelligent control system thereof |
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2011
- 2011-11-08 CN CN201110349603.9A patent/CN103089872B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10159882A (en) * | 1996-12-02 | 1998-06-16 | Fuji Electric Co Ltd | Electromagnetic brake device |
| CN200996421Y (en) * | 2006-12-11 | 2007-12-26 | 刘硕毅 | Power-off friction brake |
| CN201184290Y (en) * | 2008-04-09 | 2009-01-21 | 姜银生 | Electromagnetic brake of oil pumping machine |
| CN202441784U (en) * | 2011-11-08 | 2012-09-19 | 孙宝利 | Brake apparatus of oil pumping unit and intelligent control system thereof |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103322095A (en) * | 2013-06-27 | 2013-09-25 | 恩博沃克（北京）科技发展有限公司 | One-touch smart brake device of pumping unit |
| CN103322095B (en) * | 2013-06-27 | 2016-04-27 | 恩博沃克（北京）科技发展有限公司 | Pumping unit One-touch smart brake device |
| WO2016015534A1 (en) * | 2014-07-31 | 2016-02-04 | 孙宝利 | Braking device for oil field pumping unit and intelligent control system thereof |
| CN110159389A (en) * | 2019-05-23 | 2019-08-23 | 潍柴动力股份有限公司 | Oil pump drive gear installation method and Oil pump drive gear mounting structure |
| US11955782B1 (en) | 2022-11-01 | 2024-04-09 | Typhon Technology Solutions (U.S.), Llc | System and method for fracturing of underground formations using electric grid power |
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| Publication number | Publication date |
|---|---|
| CN103089872B (en) | 2016-03-09 |
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