CN102182427A - Numerically-controlled distance-measuring brake drum oil pumping unit - Google Patents
Numerically-controlled distance-measuring brake drum oil pumping unit Download PDFInfo
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- CN102182427A CN102182427A CN2011100889731A CN201110088973A CN102182427A CN 102182427 A CN102182427 A CN 102182427A CN 2011100889731 A CN2011100889731 A CN 2011100889731A CN 201110088973 A CN201110088973 A CN 201110088973A CN 102182427 A CN102182427 A CN 102182427A
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Abstract
The invention discloses a numerically-controlled distance-measuring brake drum oil pumping unit, which comprises a base, a rack, a balanced box, a beam hanger, a load belt, an upper platform, a reduction brake drum mechanism, a driving mechanism, a tight-up belt, a broken rod protection mechanism, a lifting/descending travelling mechanism, an electric control mechanism, a load discharging mechanism of a fixed rope hanging pile and zeroing soft iron, wherein the reduction brake drum mechanism is arranged in front of the upper platform and connected with the driving mechanism by the tight-up belt; the broken rod protection mechanism is arranged between the reduction brake drum mechanism and the driving mechanism; a programmable logic controller (PLC) of the electric control mechanism carries out logic operation according to an input state and outputs a control signal; the control signal directs the controller to control the on and off, a rotary speed and forward and reverse rotation of a motor and directs broken rod protection; and the electric control mechanism is used for safely operating the oil pumping unit, adjusting the stroke frequency and stroke of the oil pumping unit without downtime, judging a fault and executing protection.
Description
Technical field
The present invention relates to the ground oil recovery machiner equipment that recovers the oil in a kind of oil field; specifically a kind of numerical control range finding control stroke, jig frequency, maintenance well head are plucked the numerical control range finding brake cylinder oil pumper of load removal convenience, operation telephone-moving safe ready, the disconnected bar protection of electrical control.
Background technology
Oil pumper is a kind of conventional equipment that recovers the oil in ground, oil field, and beam-pumping unit is the adopted the earliest equipment of ground oil production equipment, and because of its reliability height is also using always, but its system effectiveness low energy consumption height is adjusted stroke jig frequency labour intensity and generally acknowledged greatly.For multiple vertical oil-pumping machine has successively appearred in increase system efficiency, comprise the oil pumper of various mechanical commutations and electronic commutation, and mechanical commutation because can only being regular length, stroke can not adapt to the requirement of multiple hole condition, and exchange system fabricating cost height; The oil pumper of electronic commutation comprises the oil pumper that linear oil pumping machine and various buncher drive, and linear oil pumping machine is owing to cost height, efficient are general, and practicality is not very strong; And buncher is various multiple functional because the develop rapidly of modern speed adjusting technique and the universal price of use have been approved that efficient is higher, has invented multiple electrical machinery commutation intelligence pumping unit thus.
A kind of publication is arranged, application number is 991105540 friction-driven self-locking commutation type oil pumper, its upper rack is equipped with the self-locking cylinder, the load belt covers drum surface, and load belt one end connects the polished rod other end and connects tandem-driving bogie, and motor rotates by belt drives self-locking cylinder, the rotating of motor drives self-locking cylinder positive direction and rotates, the friction-driven of self-locking roller tube makes the load belt finish reciprocating motion, and the drive oil well pump is done and pumped, and reaches the purpose of oil pumping; Its disconnected bar protective device is installed in the tandem-driving bogie, and reversing buffering mechanism is in the bottom of frame.It exists following irrealizable problem and design shortcoming:
1, be to realize that cylinder input belt wheel rotates brake and opens under the situation of self-locking cylinder in no external control of strap brake, cylinder input belt wheel stall brake self-locking, the problem that exists the self-locking cylinder to realize.
2, the rotating of motor realizes by the limit sensors control inverter, changes the position that length of stroke need be retightened limit sensors, exists length of stroke to adjust inconvenient shortcoming.
3; disconnected bar protection has limitation; the effect of disconnected bar protection is to prevent from that tandem-driving bogie moment from falling to smash the basis; the well rod degree of depth is many meters of 500-4000; the degree of depth does not wait; because polished rod is bigger with respect to the sucker rod cross section; disconnected bar substantially all is to occur in the following sucker rod of polished rod; when breaking bar below 100 meters in the down-hole; because the well head side also has certain load; the friction factor on rubber and barrel surface is bigger; the acting in conjunction of the weight of tandem-driving bogie and well head side residuals weight makes frictional force that the load belt causes the pressure of the drum surface spring tension greater than disconnected bar protective device; cause the disconnected bar protective device can not momentary action; and tandem-driving bogie drags cylinder and quicken to rotate, and causes the situation that smashes the basis to take place, and therefore exists disconnected bar protection that circumscribed shortcoming is arranged.
4, when operation well workover or maintenance well head, need separately load being connected of belt and polished rod, and the mode of " friction-driven self-locking commutation type oil pumper " friction-driven can not be mentioned tandem-driving bogie separately, be in stress between load belt and the beam hanger always, even loose by force polished rod clamp can be realized being connected of load belt and beam hanger, because stressed bounce-back is also relatively more dangerous, and can only mention the polished rod high-altitude by working rig or crane when the connected load belt was with beam hanger again after operation was intact is connected, use very inconvenience, have and to pluck load removal and unsafe shortcoming voluntarily.
5, when the needs workover treatment, well head needs certain operating space, and frame and upper cylinder position hinder the operation up and down of working rig hook, have the shortcoming that well workover can not be satisfied the operating space needs.
6, the mechanical commutation buffer can only work when frame lower commutates to tandem-driving bogie, and can't buffer protection when upper rack commutates, and has the infull shortcoming of commutation pooling feature.
Summary of the invention
The objective of the invention is to solve the irrealizable problem of self-locking cylinder of friction-driven self-locking commutation type oil pumper, length of stroke adjustment inconvenience, the protection of disconnected bar have limitation, can not pluck load removal voluntarily, well workover can not be satisfied the working space demand, the not congruent shortcoming of commutation pooling feature.
Purpose of the present invention provides a kind of stroke, jig frequency easy to adjust; Disconnected bar protectiveness is strong; Load convenient, safety are plucked, are hung in the operation well workover, and it is convenient to make a concession working space; Commutation is steady, impact is little; Energy-conservation, reliable numerical control range finding brake cylinder oil pumper.
Technical scheme of the present invention: comprise numerical control range finding brake cylinder oil pumper by frame mechanism, hanging balancing mechanism, driving mechanism, disconnected bar protection mechanism, electrical control mechanism, pluck the mechanism that steps down of load removal mechanism, telephone-moving and form.
Frame mechanism comprises that base, frame, upper mounting plate, upper mounting plate guardrail, cat ladder, middle platform and guardrail, stable regulation support; This system plays the effect that guarantees running space and fixed part.
Hanging balancing mechanism comprises polished rod eye, load belt, slowing-down brake cylinder, tandem-driving bogie, and the load belt overlays on the slowing-down brake cylinder, and an end of load belt connects the oil well polished rod by polished rod eye, and the other end connects tandem-driving bogie; This system becomes rectilinear motion with the circular motion of cylinder, satisfies the requirement of down-hole oil pump linear reciprocating motion, disposes corresponding weight by tandem-driving bogie according to oil well depth, and operating load is even about making, and reduces peak load.
Driving mechanism comprises motor adjustment fixed guide, motor, grouped belt, slowing-down brake cylinder, load belt, motor is adjusted fixed guide and is fixed on the upper mounting plate, motor is fixed on motor and adjusts on the fixed guide, the belt pulley of motor rotates the slowing-down brake cylinder by the input belt pulley that grouped belt drives the slowing-down brake cylinder, up and down reciprocatingly move by the friction-driven load belt of slowing-down brake cylinder with the load belt, this system plays the effect of transfer torque.
Disconnected bar protection mechanism comprises the disconnected bar signal detection and the disconnected bar protection of the control magnetic coil power supply output of electrical control mechanism; moving armature; thrust spring; disconnected bar protection magnetic coil and static gag bit; the rotating shaft holder; elastic spring; push rod; clamping plate; rotating shaft; the load belt is formed; it is characterized in that the rotating shaft holder is fixed on the both sides of load belt on the upper mounting plate; rotating shaft is inserted in the axis hole of rotating shaft holder; clamping plate is welded in the rotating shaft; push rod is in the centre of two clamping plates; elastic spring hangs on two clamping plates; disconnected bar protection magnetic coil and static gag bit be fixed on upper mounting plate below; push rod passes disconnected bar protection magnetic coil and the static gag bit rear lower connects moving armature; thrust spring is enclosed within on the push rod; be clipped between moving armature and the static gag bit; taper seat is processed on the top of push rod; there is the thrust spacing preiection at the middle part; moving armature is installed in the bottom, and this system plays the disconnected bar fault detection address fault type of oil well and prevents the effect that tandem-driving bogie glides fast under the serious unbalance situation of balance.
Electrical control mechanism comprises the switch board power switch; the control transformer switch; up inching button; descending inching button; scram button; manual changeover switch; Switching Power Supply; control transformer; controller; PLC; text display; control brake relay coil; control brake relay constant open contact; electricity loss brake; the disconnected bar protection of control magnetic coil relay coil; the disconnected bar protection of control magnetic coil relay normally open contact; disconnected bar protection magnetic coil; school zero is near switch; the revolution record is near switch and motor; the switch board power switch is powered to system; the control transformer switch is powered to control transformer; control transformer is powered to PLC; Switching Power Supply is to electricity loss brake and the power supply of disconnected bar protection magnetic coil; up inching button; descending inching button; scram button; manual changeover switch; school zero is near switch; the revolution record is near switch; text display; controller; to PLC input control order and real-time running state; PLC program editing controller is exported control signal after according to the input state logical operation; the start-stop of commander's controller control motor; rotating speed and rotating; commander's electricity loss brake and disconnected bar protection magnetic coil whether electric, this system plays control and moves; the effect of fault judgement and execute protection.
Plucking load removal mechanism is made up of fixedly lanyard stake, load removal wire rope, movable pulley, slowing-down brake cylinder, tandem-driving bogie, it is characterized in that fixedly the lanyard stake is on upper mounting plate, load removal wire rope one end is fixed in the fixedly lanyard stake, walk around then in the cylinder lanyard stake that movable pulley upwards is suspended to the slowing-down brake cylinder again, movable pulley is fixed on the top of tandem-driving bogie.Play and mention polished rod that tandem-driving bogie makes the well head side and is connected laxly with the load belt, safety is taken apart between polished rod and the load belt and is connected, the well head side is loaded effect that the polished rod load of belt connection is convenient to extract.
The telephone-moving mechanism that steps down is made up of telephone-moving cement base, base and lifting walking mechanism, it is characterized in that base is on the telephone-moving cement base, the lifting walking mechanism is fixed on the base, rises oil pumper when playing workover treatment and it is moved backward, gets out of the way the effect of working space.
The overall concrete structure of numerical control range finding brake cylinder oil pumper comprises the telephone-moving cement base; base; frame; tandem-driving bogie; polished rod eye; the load belt; upper mounting plate; the slowing-down brake cylinder; the upper mounting plate guardrail; grouped belt; motor; motor is adjusted fixed guide; school zero is near switch; disconnected bar protective device; cat ladder; middle platform and guardrail; movable pulley; stable regulation supports; the lifting walking mechanism; cable; electrical control cubicles; fixedly lanyard stake; the load removal wire rope; stone bolt; school zero soft iron; the tandem-driving bogie brace summer; telephone-moving cement base rear portion is equipped with electrical control cubicles; fixing base with stone bolt on the telephone-moving cement base; it on the base frame; there are middle platform and guardrail in the middle part of frame; one side of frame is equipped with cat ladder; stable regulation is installed between base and the frame to be supported; upper rack is a upper mounting plate; the periphery of upper mounting plate is installed the platform guardrail; the front is equipped with the slowing-down brake cylinder; slowing-down brake cylinder one side has fixedly lanyard stake; fixedly be tied with the load removal wire rope in the lanyard stake; slowing-down brake cylinder back has motor to adjust fixed guide; motor is adjusted on the fixed guide motor is installed; school zero is installed near switch between slowing-down brake cylinder and the motor; the load belt is arranged on the slowing-down brake cylinder; the front end of load belt connects polished rod eye; the rear end connects tandem-driving bogie; the middle part is fixed with school zero near soft iron; tandem-driving bogie top is equipped with movable pulley; the both sides of load belt are equipped with disconnected bar protective device, electrical control cubicles on upper mounting plate; motor; electricity loss brake; school zero is near switch; the revolution record is near switch; cable has been formed control system.
Compared with the prior art the present invention has the following advantages: can accomplish accurate balance, the machine driving route is short, efficient is high, adjust according to the oil well needs that the stroke jig frequency conveniently need not to shut down, has disconnected bar detection and defencive function, load removal is plucked in well workover and telephone-moving is had a few easily.
Description of drawings
Fig. 1-side structure schematic diagram of the present invention
Fig. 2-Facad structure signal of the present invention
The A of Fig. 3-accompanying drawing 1 of the present invention is to view
The structural representation of slowing-down brake cylinder in Fig. 4-accompanying drawing 1 of the present invention
Fig. 5-disconnected bar protective device schematic diagram of the present invention
The vertical view of Fig. 6-Fig. 5
Fig. 7-electrical control block diagram of the present invention
Fig. 1; 2; 1-telephone-moving cement base in 3; the 2-base; the 3-frame; the 4-tandem-driving bogie; the 5-polished rod eye; the 6-belt of loading; the 7-upper mounting plate; 8-slowing-down brake cylinder; 9-upper mounting plate guardrail; the 10-grouped belt; the 11-motor; the 12-motor is adjusted fixed guide; 13-school zero is near switch; the 14-bar protective device that breaks; the 15-cat ladder; platform and guardrail among the 16-; the 17-movable pulley; the 18-stable regulation supports; 19-lifting walking mechanism; the 20-cable; the 21-electrical control cubicles (; fixedly lanyard stake of 22-; 23-load removal wire rope; the 24-stone bolt; 25-school zero soft iron; the 26-tandem-driving bogie supports.
The hole takes place in 8-1 supporting base, 8-2 shaft coupling, 8-3 cylindrical shell, 8-4 deceleration parts, 8-5 key, 8-6 belt pulley roller tube, 8-7 power shaft 8-8 revolution signal among Fig. 4,8-9 revolution record rotates lanyard stake, 8-14 left half axle 8-15 brake axle, 8-16 electricity loss brake near switch, shaft coupling, 8-10 right axle shaft, 8-11 oil sealing, 8-12 end cap, 8-13.
14-1 moving armature, 14-2 thrust spring, the disconnected bar protection magnetic coil of 14-3 and static gag bit, 14-4 rotating shaft holder, 14-5 elastic spring, 14-6 push rod, 14-7 clamping plate, 14-8 rotating shaft, 6 load belts among Fig. 5,6.
K1-switch board power switch among Fig. 7; K2-control transformer switch; the up inching button of K3-; the descending inching button of K4-; the K5-scram button; the manual changeover switch of K6-; the 21-1-Switching Power Supply; the 21-2-control transformer; the 21-3-controller; 21-4-PLC; the 21-5-text display; J1-1 control brake relay coil; J1-2 control brake relay constant open contact; the 8-16 electricity loss brake; the disconnected bar protection of J2-1 control magnetic coil relay coil; the disconnected bar protection of J2-2 control magnetic coil relay normally open contact; the disconnected bar protection of 14-3 magnetic coil; 13-school zero is near switch; 8-9 revolution record is near switch; the 12-motor.
The specific embodiment
For further disclosing technical scheme of the present invention, elaborate by embodiment below in conjunction with Figure of description:
A kind of numerical control range finding brake cylinder oil pumper; comprise base, frame, tandem-driving bogie, polished rod eye, load belt, upper mounting plate, slowing-down brake cylinder mechanism, driving mechanism, the disconnected bar protection mechanism of grouped belt, lifting walking mechanism, electrical control mechanism; fixedly load removal mechanism and school zero soft iron are plucked in the lanyard stake, it is characterized in that:
A, being installed in the upper mounting plate front by slowing-down brake cylinder mechanism 8 concrete structures that grouped belt is connected with driving mechanism is: what the power shaft 8-7 of slowing-down brake cylinder was coaxial is installed in the right axle shaft 8-10, the right-hand member of power shaft 8-7 is installed belt pulley 8-6, left end is installed the internal tooth of shaft coupling 8-2, the rocker bearing of deceleration parts 8-4 is installed on the right side of shaft coupling 8-2, right axle shaft 8-10 and left half axle 8-14 link together by the bearing pin of deceleration parts 8-4, what brake axle 8-15 was coaxial is installed in the left half axle 8-14, the left end of brake axle 8-15 is installed the rolling disc of electricity loss brake 8-16, right-hand member is installed another internal tooth of shaft coupling 8-2, the external tooth of shaft coupling 8-2 connects two internal tooths of power shaft 8-10 and brake axle 8-15, power shaft 8-10 and brake axle 8-15 are linked together, the pin wheel housing of deceleration parts 8-4 is fixed on the cylindrical shell 8-3, lanyard stake 8-13 is rotated in the right-hand member welding on the cylindrical of cylindrical shell 8-3, end cap 8-12 is installed with bolt in the two ends of cylindrical shell 8-3, two end cap 8-12 is installed on left half axle 8-14 and the right axle shaft 8-10 by bearing, two end cap 8-12 goes up oil sealing 8-11 is installed, holder and the magnetic coil of electricity loss brake 8-16 installed in the left side of left half axle 8-14, the revolution record is installed near switch 8-9 in the right side of right axle shaft 8-10, left half axle 8-14 and right axle shaft 8-10 are fixed on the supporting seat 8-1 by key 8-5, and belt pulley 8-6 goes up to make has the revolution signal that hole 8-8 takes place;
B, be installed in that the concrete mounting structure of disconnected bar protection mechanism on the platform is between slowing-down brake cylinder mechanism and the driving mechanism: the rotating shaft holder 14-4 of disconnected bar protection mechanism is fixed on the both sides of load belt 6 on the upper mounting plate 7, rotating shaft 14-8 is inserted in the axis hole of rotating shaft holder 14-4, clamping plate 14-7 is welded on the rotating shaft 14-8, push rod 14-6 is in the centre of two clamping plate 14-7, elastic spring 14-5 hangs on the two clamping plate 14-7, disconnected bar protection magnetic coil and static gag bit 14-3 be fixed on upper mounting plate 7 below, push rod 14-6 passes disconnected bar protection magnetic coil and static gag bit 14-3 rear lower connects moving armature 14-1, thrust spring 14-2 is enclosed within on the push rod 14-6, be clipped between moving armature 14-1 and the static gag bit 14-3, taper seat is processed on the top of push rod 14-6, there is the thrust spacing preiection at the middle part, moving armature 14-1 is installed in the bottom, be somebody's turn to do disconnected bar protection mechanism online detection oil well polished rod or rod parting and control, prevent from tandem-driving bogie quick downslide threat to life safety out of control and smash ground to establish;
C; electrical control mechanism comprises switch board 21; switch board electricity power switch K1; control transformer K switch 2; up inching button K3; descending inching button K4; scram button K5; manual changeover switch K6; Switching Power Supply 21-1; control transformer 21-2; controller 21-3; PLC21-4; text display 21-5; control brake relay coil J1-1; control brake relay constant open contact J1-2; electricity loss brake 8-16; the disconnected bar protection of control magnetic coil relay coil J2-1; the disconnected bar protection of control magnetic coil relay normally open contact J2-2; disconnected bar protection magnetic coil 14-3; school zero is near switch 13; the revolution record is near switch 8-9; motor 11 is formed; the switch board power switch is powered to system; the control transformer switch is powered to control transformer; control transformer is powered to PLC; Switching Power Supply is to electricity loss brake and the power supply of disconnected bar protection magnetic coil; up inching button; descending inching button; scram button; manual changeover switch; school zero is near switch; the revolution record is near switch; text display; controller; to PLC input control order and real-time running state; PLC program editing controller is exported control signal after according to the input state logical operation; the start-stop of commander's controller control motor; rotating speed and rotating; commander's electricity loss brake and disconnected bar protection magnetic coil whether electric, electrical equipment control mechanism plays control and moves; do not shut down and regulate oil pumper jig frequency and stroke; the effect of fault judgement and execute protection.
D, pluck load removal mechanism and form by fixedly lanyard stake 22, load removal wire rope 23, movable pulley 17, slowing-down brake cylinder 8, tandem-driving bogie 4, fixedly the lanyard stake is on upper mounting plate, load removal wire rope one end is fixed in the fixedly lanyard stake, walk around then in the cylinder lanyard stake that movable pulley upwards is suspended to the slowing-down brake cylinder again, movable pulley is fixed on the top of tandem-driving bogie.Play and mention polished rod that tandem-driving bogie makes the well head side and is connected laxly with the load belt, safety is taken apart between polished rod and the load belt and is connected, the well head side is loaded effect that the polished rod load of belt connection is convenient to extract.When needs are plucked load removal maintenance oil well; oil pumper is moved top dead-centre shuts down; one end of load removal wire rope 23 is hung in the fixedly lanyard stake 22; walk around then on the cylinder lanyard stake 8-13 that movable pulley 17 upwards is suspended to slowing-down brake cylinder 8 again; starting oil pumper exercises polished rod eye down and shuts down when the top of oil well seal box; on polished rod, accomplish fluently the polished rod clamp; continue to start the descending polished rod clamp of oil pumper and be pressed onto that polished rod can not be descending on the well head; and the load belt is also descending; at this moment the wire rope that the belt of loading is connected with polished rod is lax, finishes the excision of polished rod load on the load belt.
As Fig. 1; 2; shown in 3: telephone-moving cement base 1 rear portion of numerical control range finding brake cylinder oil pumper is equipped with electrical control cubicles 21; fixing base 2 with stone bolt 24 on the telephone-moving cement base 1; it on the base 2 frame 3; there are middle platform and guardrail 16 in the middle part of frame 3; one side of frame 3 is equipped with cat ladder 15; stable regulation is installed between base 2 and the frame 3 supports 18; frame 3 tops are upper mounting plates 7; the periphery of upper mounting plate 7 is installed platform guardrail 9; the front is equipped with slowing-down brake cylinder 8; one side of slowing-down brake cylinder 8 has fixedly lanyard stake 22; fixedly be tied with load removal wire rope 23 in the lanyard stake 22; slowing-down brake cylinder 8 back have motor to adjust fixed guide 12; motor is adjusted on the fixed guide 12 motor 11 is installed; school zero is installed near switch 13 between slowing-down brake cylinder 8 and the motor 11; load belt 6 is arranged on the slowing-down brake cylinder 8; the front end of load belt 6 connects polished rod eye 5; the rear end connects tandem-driving bogie 4; the middle part is fixed with school zero near soft iron 25; tandem-driving bogie top is equipped with movable pulley 17; the both sides of load belt 6 are equipped with disconnected bar protective device 14, electrical control cubicles 21 on upper mounting plate 7; motor 11; electricity loss brake 8-16; school zero is near switch 13; the revolution record is near switch 8-9; cable 20 has been formed control system.
Hypothesis tandem-driving bogie 4 is in the bottom of frame during operation; serve for switch board 21; press the descending start button of K4; switch board 21 is given disconnected bar protective device 14 power supplies; disconnected bar protective device 14 is in contactless state with the load belt; give electricity loss brake 8-16 power supply again; make electricity loss brake be in non-braking state; give motor 11 power supplies then; the motor antiport; the belt pulley 8-6 that drives numerical control brake cylinder 8 by motor pulley rotates; belt pulley 8-6 drives power shaft 8-7 and rotates; driving cylindrical shell 8-3 through reductor parts 8-4 rotates; because an end of load belt 6 connects the oil well oil pump through polished rod eye, the other end connects tandem-driving bogie 4, and load belt 6 overlays on the numerical control brake cylinder 8; the weight of oil well load and tandem-driving bogie 4 makes between the cylindrical shell 8-3 of load belt 6 and numerical control brake cylinder 8 and produces very big frictional force, and the cylindrical shell 8-3 rotating drive of numerical control brake cylinder 8 belt 6 of loading makes tandem-driving bogie 4 up oil pumps descending.The number generation signal in hole 8 takes place and imports switch board 21 near the revolution signal that switch 8-9 detects on the belt pulley 8-6 in the revolution record when just starting, number through the hole is converted into the revolution of power shaft, the diameter of cylindrical shell 8-3 converses the displacement that the load belt 6 of hole correspondence takes place each revolution signal through slowing down when again, when the school of load on the belt 6 zero soft iron 25 through the school zero of upper mounting plates 7 during near switch 13, school zero is sent the school zero-signal near switch 13 to switch board 21, making the revolution tracer signal is zero, the revolution signal of continuation operation switch board 21 records is designated as negative value and adds up, when reaching the length of stroke of switch board 21 settings, switch board 21 sends the antiport signal; The revolution signal negative value of accumulative total increases gradually, when school zero that the school of load on the belt 6 zero soft iron 25 passes through upper mounting plate 7 once more during near switch 13, the school zero-signal is sent to switch board 21 again near switch 13 in school zero, making the revolution tracer signal is zero, the revolution signal that continues operation switch board 21 records be designated as on the occasion of and add up, when reaching the length of stroke of switch board 21 settings, switch board 21 sends the commutation CRANK PULSES again; The variation of so positive negative value and the variation of digital quantity, switch board 21 can be judged real time execution direction and stroke, and real-time running state is stored.Just can be automatically when automatic operation according to last time stopped status bring into operation.Because of zero soft iron 25 fixed-site of the Criticize on the load belt 6, each stroke carries out the precision that school zero has guaranteed stroke.Press K5 during shutdown, switch board is preserved current running status automatically, and gives disconnected bar protective device 14, electricity loss brake 8-16 and motor 11 outages, shutdown of pumping machine.
As shown in Figure 4: coaxial being installed in the right axle shaft 8-10 of power shaft 8-7 of the slowing-down brake cylinder 8 of numerical control range finding brake cylinder oil pumper, the right-hand member of power shaft 8-7 is installed belt pulley 8-6, left end is installed the internal tooth of shaft coupling 8-2, the rocker bearing of deceleration parts 8-4 (present embodiment is the example explanation with the cycloidal planetary gear speed reducer) is installed on the right side of shaft coupling 8-2, right axle shaft 8-10 and left half axle 8-14 link together by the bearing pin of deceleration parts 8-4, what brake axle 8-15 was coaxial is installed in the left half axle 8-14, the left end of brake axle 8-15 is installed the rolling disc of electricity loss brake 8-16, right-hand member is installed another internal tooth of shaft coupling 8-2, the external tooth of shaft coupling 8-2 connects two internal tooths of power shaft 8-10 and brake axle 8-15, power shaft 8-10 and brake axle 8-15 are linked together, the pin wheel housing of deceleration parts 8-4 is fixed on the cylindrical shell 8-3, lanyard stake 8-13 is rotated in the right-hand member welding on the cylindrical of cylindrical shell 8-3, end cap 8-12 is installed with bolt in the two ends of cylindrical shell 8-3, two end cap 8-12 is installed on left half axle 8-14 and the right axle shaft 8-10 by bearing, two end cap 8-12 goes up oil sealing 8-11 is installed, holder and the magnetic coil of electricity loss brake 8-16 installed in the left side of left half axle 8-14, the revolution record is installed near switch 8-9 in the right side of right axle shaft 8-10, left half axle 8-14 and right axle shaft 8-10 are fixed on the supporting seat 8-1 by key 8-5, and belt pulley 8-6 goes up to make has the revolution signal that hole 8-8 takes place.
As Fig. 5; shown in 6: the rotating shaft holder 14-4 of the disconnected bar protection mechanism of numerical control range finding brake cylinder oil pumper is fixed on the both sides of load belt 6 on the upper mounting plate 7; rotating shaft 14-8 is inserted in the axis hole of rotating shaft holder 14-4; clamping plate 14-7 is welded on the rotating shaft 14-8; push rod 14-6 is in the centre of two clamping plate 14-7; elastic spring 14-5 hangs on the two clamping plate 14-7; disconnected bar protection magnetic coil and static gag bit 14-3 be fixed on upper mounting plate 7 below; push rod 14-6 passes disconnected bar protection magnetic coil and static gag bit 14-3 rear lower connects moving armature 14-1; thrust spring 14-2 is enclosed within on the push rod 14-6; be clipped between moving armature 14-1 and the static gag bit 14-3; taper seat is processed on the top of push rod 14-6; there is the thrust spacing preiection at the middle part, and moving armature 14-1 is installed in the bottom.Unexpected vast scale variation by motor torque when sucker rod is disconnected detects by PLC; in time send Priority Directive and make the outage of disconnected bar protection magnetic coil; static gag bit magnetic force disappears and inhales incessantly moving armature; moving armature drives push rod and moves down the centre position of withdrawing from two clamping plates; elastic spring draws two clamping plates to be brought together into and meets belt surface; because load belt one side is glided by the tandem-driving bogie effect; and this moment, clamping plate had the locking effect with the angle of load belt, clamped the load belt and prevented the purpose that tandem-driving bogie glides fast.
As shown in Figure 7: closed successively switch board power switch K1, control transformer K switch 2 before oil pumper starts.When the needs crawl moves, manual changeover switch K6 is allocated to the manual closing position, behind the up inching button K3 of crawl, PLC21-4 is to the disconnected bar protection of 14-3 control magnetic coil relay coil J2-1 power supply, the disconnected bar protection of control magnetic coil relay normally open contact J2-2 closure, the disconnected bar protection of 14-3 magnetic coil gets electric, makes the push rod 14-6 of disconnected bar protective device push clamping plate 14-7 open, the load belt is in does not step up state; PLC21-4 gets control brake relay coil J1-1 then, control brake relay constant open contact J1-2 closure, electricity loss brake 8-16 releasing of brake, PLC21-4 just changes according to this speed according to the crawl speed commander controller 21-3 control motor 11 that text display 21-5 is provided with simultaneously, PLC21-4 commands controller 21-3 stall motor 11 after unclamping up inching button K3, PLC21-4 makes control brake relay coil J1-1 dead electricity simultaneously, control brake relay constant open contact J1-2 opens, electricity loss brake 8-16 brake, except that motor 11 counter-rotatings, other processes were identical when crawl was descending.
When moving automatically, manual changeover switch K6 is allocated to the auto-closing position, PLC21-4 surface sweeping memory failure type, there is catastrophe failure PLC21-4 to show that fault type and protection can not start, fault is got rid of back PLC21-4 surface sweeping memory failure type and is confirmed fault-free, PLC21-4 is to the disconnected bar protection of 14-3 control magnetic coil relay coil J2-1 power supply, the disconnected bar protection of control magnetic coil relay normally open contact J2-2 closure, the disconnected bar protection of 14-3 magnetic coil gets, make the push rod 14-6 of disconnected bar protective device push clamping plate 14-7 open, the load belt is in does not step up state; PLC21-4 surface sweeping internal memory; school zero signal near switch 13 inputs, revolution record according to PLC21-4 storage crawl operation or shutdown last time are judged the suspension point position near the state of switch 8-9 before operation; when revolution record near numerical value that switch 8-9 write down on the occasion of; proof suspension point position is above school zero zero point near switch 13 indications; it is electric that PLC21-4 gets control brake relay coil J1-1, control brake relay constant open contact J
1-2 closures, electricity loss brake 8-16 releasing of brake, start direction motor backward rotation (suspension point is descending) when supposing operation automatically, PLC21-4 rotates according to this speed according to the automatic speed of service commander controller 21-3 control motor 11 that text display 21-5 is provided with simultaneously, revolution record in service is input to PLC21-4 near switch 8-9 signal, PLC21-4 judges that the suspension point position is about to reach the following motor deceleration slow-speed in limited time that text display 21-5 is provided with, the following controller 21-3 that commands in limited time that reaches text display 21-5 setting controls the motor stall, command controller 21-3 control out-put supply oppositely continuous mutually then, the motor forward rotation, suspension point is up, revolution record in service is input to PLC21-4 near switch 8-9 signal, PLC21-4 judges that the suspension point position is about to reach the upward motor deceleration slow-speed in limited time that text display 21-5 is provided with, command the stall of controller 21-3 control motor in limited time on reaching that text display 21-5 is provided with, command controller 21-3 control out-put supply oppositely continuous mutually then, motor counter-rotating suspension point is descending, the process of going round and beginning again circulation.The numerical value that is write down near switch 8-9 when the revolution record during startup is negative value, proves that the suspension point position, starts the direction motor and just changes (suspension point is up) below zero zero point near switch 13 indications in the school when moving automatically, and the automatic reverse process is identical.
The adjustment of stroke jig frequency can realize by text display 21-5 when moving automatically that the automatic speed of service setting of motor is finished among the jig frequency adjustment selection text display 21-5; The stroke adjustment upper limit, lower limit Numerical Implementation among the text display 21-5 are selected in the stroke adjustment.
Disconnected bar defencive function changes by the instant torque of motor that detects controller 21-3 indication to be realized.Because disconnected bar occurs in suspension point when up; the motor of PLC21-4 the analyzer-controller 21-3 indication square of just walking around immediately changes; PLC21-4 is in omnidistance square and the storage of just walking around of sampling of each up stroke; comparison foundation as next up stroke; when instant torque is judged as disconnected bar during less than corresponding stored torque 50%; the PLC21-4 output signal makes the disconnected bar protection of control magnetic coil relay coil J2-1 get electric adhesive; the disconnected bar protection of control magnetic coil relay normally open contact J2-2 closure; disconnected bar protection magnetic coil 14-3 gets electric corresponding mechanical mechanism action, realizes disconnected bar protection.Simultaneously, PLC21-4 sends parking order, and motor 11 stops, control brake relay coil J1-1 dead electricity, and control brake relay constant open contact J1-2 opens electricity loss brake 8-16 brake.
Claims (2)
1. numerical control range finding brake cylinder oil pumper, comprise base, frame, tandem-driving bogie, polished rod eye, the load belt, upper mounting plate, the slowing-down brake cylinder mechanism, driving mechanism, grouped belt, disconnected bar protection mechanism, the lifting walking mechanism, electrical control mechanism, fixedly load removal mechanism and school zero soft iron are plucked in the lanyard stake, it is characterized in that: a, being installed in the upper mounting plate front by slowing-down brake cylinder mechanism (8) concrete structure that grouped belt is connected with driving mechanism is: what the power shaft of slowing-down brake cylinder (8-7) was coaxial is installed in the right axle shaft (8-10), the right-hand member of power shaft (8-7) is installed belt pulley (8-6), left end is installed an internal tooth of shaft coupling (8-2), the rocker bearing of deceleration parts (8-4) is installed on the right side of shaft coupling (8-2), right axle shaft (8-10) links together with the bearing pin of left half axle (8-14) by deceleration parts (8-4), what brake axle (8-15) was coaxial is installed in the left half axle (8-14), the left end of brake axle (8-15) is installed the rolling disc of electricity loss brake (8-16), right-hand member is installed another internal tooth of shaft coupling (8-2), the external tooth of shaft coupling (8-2) connects two internal tooths of power shaft (8-10) and brake axle (8-15), power shaft (8-10) and brake axle (8-15) are linked together, the pin wheel housing of deceleration parts (8-4) is fixed on the cylindrical shell (8-3), lanyard stake (8-13) is rotated in the right-hand member welding on the cylindrical of cylindrical shell (8-3), end cap (8-12) is installed with bolt in the two ends of cylindrical shell 8-3, two end cap (8-12) is installed on left half axle (8-14) and the right axle shaft (8-10) by bearing, two end cap (8-12) goes up installs oil sealing (8-11), the holder and the magnetic coil of electricity loss brake (8-16) installed in the left side of left half axle (8-14), the revolution record is installed near switch (8-9) in the right side of right axle shaft (8-10), left half axle (8-14) and right axle shaft (8-10) are fixed on the supporting seat (8-1) by key (8-5), and belt pulley (8-6) is gone up to make has the revolution signal that hole (8-8) takes place;
B, be installed in that the concrete mounting structure of disconnected bar protection mechanism on the platform is between slowing-down brake cylinder mechanism and the driving mechanism: the rotating shaft holder (14-4) of disconnected bar protection mechanism is fixed on the both sides that upper mounting plate (7) is gone up load belt (6), rotating shaft (14-8) is inserted in the axis hole of rotating shaft holder (14-4), clamping plate (14-7) is welded in the rotating shaft (14-8), push rod (14-6) is in the centre of two clamping plates (14-7), elastic spring (14-5) hangs on two clamping plates (14-7), disconnected bar protection magnetic coil and static gag bit (14-3) be fixed on upper mounting plate (7) below, push rod (14-6) passes disconnected bar protection magnetic coil and static gag bit (14-3) rear lower connects moving armature (14-1), thrust spring (14-2) is enclosed within on the push rod (14-6), be clipped between moving armature (14-1) and the static gag bit (14-3), taper seat is processed on the top of push rod (14-6), there is the thrust spacing preiection at the middle part, moving armature (14-1) is installed in the bottom, be somebody's turn to do disconnected bar protection mechanism online detection oil well polished rod or rod parting and control, prevent from tandem-driving bogie quick downslide threat to life safety out of control and smash ground to establish;
C; electrical control mechanism comprises switch board (21); switch board electricity power switch (K1); control transformer switch (K2); up inching button (K3); descending inching button (K4); scram button (K5); manual changeover switch (K6); Switching Power Supply (21-1); control transformer (21-2); controller (21-3); PLC (21-4); text display (21-5); control brake relay coil (J1-1); control brake relay constant open contact (J1-2); electricity loss brake (8-16); the disconnected bar protection of control magnetic coil relay coil (J2-1); the disconnected bar protection of control magnetic coil relay normally open contact (J2-2); disconnected bar protection magnetic coil (14-3); school zero is near switch 13; the revolution record is near switch (8-9); motor 11 is formed; the switch board power switch is powered to system; the control transformer switch is powered to control transformer; control transformer is powered to PLC; Switching Power Supply is to electricity loss brake and the power supply of disconnected bar protection magnetic coil; up inching button; descending inching button; scram button; manual changeover switch; school zero is near switch; the revolution record is near switch; text display; controller; to PLC input control order and real-time running state; PLC program editing controller is exported control signal after according to the input state logical operation; the start-stop of commander's controller control motor; rotating speed and rotating; commander's electricity loss brake and disconnected bar protection magnetic coil whether electric, electrical equipment control mechanism plays control and moves; do not shut down and regulate oil pumper jig frequency and stroke; the effect of fault judgement and execute protection.
2. numerical control range finding brake cylinder oil pumper according to claim 1, it is characterized in that plucking load removal mechanism is made up of fixedly lanyard stake (22), load removal wire rope (23), movable pulley (17), slowing-down brake cylinder (8), tandem-driving bogie (4), fixedly the lanyard stake is on upper mounting plate, load removal wire rope one end is fixed in the fixedly lanyard stake, walk around then in the cylinder lanyard stake that movable pulley upwards is suspended to the slowing-down brake cylinder again, movable pulley is fixed on the top of tandem-driving bogie.Play and mention polished rod that tandem-driving bogie makes the well head side and is connected laxly with the load belt, safety is taken apart between polished rod and the load belt and is connected, the well head side is loaded effect that the polished rod load of belt connection is convenient to extract.
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CN201110088973.1A CN102182427B (en) | 2011-03-29 | 2011-03-29 | Numerically-controlled distance-measuring brake drum oil pumping unit |
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Cited By (8)
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CN104267688A (en) * | 2014-09-22 | 2015-01-07 | 山东艾磁驱动科技有限公司 | Well testing machine control system |
CN107064797A (en) * | 2017-05-16 | 2017-08-18 | 浙江赛安电气科技有限公司 | Permagnetic synchronous motor test bed apparatus |
WO2020044120A1 (en) * | 2018-02-02 | 2020-03-05 | Yanan Liu | Oil pumping apparatus without a speed reducer |
CN110939410A (en) * | 2019-12-26 | 2020-03-31 | 张海涛 | Speed protection controller for belt type oil pumping unit |
CN111058805A (en) * | 2020-01-16 | 2020-04-24 | 山东天工石油装备有限公司 | Electric control reversing oil pumping unit |
CN111188602A (en) * | 2020-03-24 | 2020-05-22 | 山东创新石油技术有限公司 | Load loss protection device for oil pumping unit |
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CN104267688A (en) * | 2014-09-22 | 2015-01-07 | 山东艾磁驱动科技有限公司 | Well testing machine control system |
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WO2020044120A1 (en) * | 2018-02-02 | 2020-03-05 | Yanan Liu | Oil pumping apparatus without a speed reducer |
CN110939410A (en) * | 2019-12-26 | 2020-03-31 | 张海涛 | Speed protection controller for belt type oil pumping unit |
CN111058805A (en) * | 2020-01-16 | 2020-04-24 | 山东天工石油装备有限公司 | Electric control reversing oil pumping unit |
CN111188602A (en) * | 2020-03-24 | 2020-05-22 | 山东创新石油技术有限公司 | Load loss protection device for oil pumping unit |
CN113756754A (en) * | 2021-10-08 | 2021-12-07 | 山东创新石油技术有限公司 | Energy storage integrated electric balance vertical oil pumping machine |
CN114645694A (en) * | 2022-05-23 | 2022-06-21 | 山东胜信石油装备有限公司 | Vertical oil pumping machine capable of automatically adjusting stroke frequency and balancing |
CN114645694B (en) * | 2022-05-23 | 2022-07-19 | 山东胜信石油装备有限公司 | Vertical oil pumping machine capable of automatically adjusting stroke frequency and balancing |
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