Built-in switch reluctance electric cylinder oil pumper
Technical field the utility model relates to the cylinder oil pumper that oil exploitation is used.
The background technology oil pumper is the visual plant that recovers the oil in ground, along with the cycle growth of oil field development, and underground fluid supply capacity wretched insufficiency, the ratio of mechanical oil recovery in producing well constantly rises.The mechanical oil well of China accounts for more than 90% of oil well sum according to statistics.Oil pumper is as the existing over one hundred year history of the visual plant of oil exploitation, what occur the earliest is conventional beam-pumping unit, because advantages such as it is simple in structure, durable, easy and simple to handle, maintenance cost is low, always in occupation of the leading position of oil recovery ground installation, but because the shortcoming of structural unreasonable presenting " low load with strong power " high energy consumption.Later designer reduces production costs for energy-saving and cost-reducing, has invented variable torque balance novel beam formula oil pumper and vertical no walking beam mechanical commutation formula oil pumper.The general stroke of novel beam formula oil pumper is less, and transfers ginseng inconvenient; Vertical no walking beam mechanical commutation formula oil pumper commutating structure complexity, adjustment stroke, jig frequency inconvenience, cost height.Vertical no its motor of walking beam mechanical commutation formula oil pumper places on the basis, and motor drags balancing weight by chain, does upper and lower reciprocating motion by the drum driven rod string of frame top again, and it changes, and journey mechanism is complicated, and energy consumption is big, and efficient is low.Another kind of motor places the vertical oil-pumping machine of frame top, and the coaxial split of its motor gear box case and cylinder is placed, and occupies bigger space at the top, and mechanical efficiency is low, rack construction is complicated, cost is higher.
The purpose of summary of the invention utility model provides a kind of built-in switch reluctance electric cylinder oil pumper.It comprises: electrical control cubicles, basis, mobile base, frame, sucker rod, belt, balancing weight, auxiliary wheel, built-in switch reluctance electric cylinder, limit switch, reversing switch, firm banking, diagonal member, wire rope, brake.It is achieved in that at the top of frame built-in switch reluctance electric cylinder is installed, and be wound with driving belt on cylinder, an end of driving belt is connected with sucker rod, and the other end is connected with balancing weight.Switched reluctance motor is installed in the cylinder, this motor is by being installed in the ring gear of the driving gear set head roll on the flange shaft, at the two ends of cylinder two auxiliary wheels are housed, there is the brake ratchet outer face of auxiliary wheel, the brake ratchet a side brake is installed.Brake matches with the brake ratchet.Limit switch is equipped with in upper and lower in frame, and there is reversing switch at the middle part.Be installed in the sensor on the switched reluctance machines and the control cabinet of the limit switch on the frame, reversing switch and oil pumper one side and form electrical control system jointly.Frame is installed on the mobile base, and mobile base and firm banking are installed on the basis, and diagonal member is fixed between frame and the firm banking.The utility model further describe into, switched reluctance motor is installed in the barrel, barrel is a hollow cylinder, in rotating shaft place of switched reluctance motor left end sensor is installed, sensor shield is installed on the motor casing, sensor is placed in the confined space of sensor shield and motor casing formation, the external left flange shaft of sensor shield, the processing of flange shaft center, a left side is porose, power line and control line pass this hole and are connected on the junction box, on the switched reluctance motor clutch end, gear is installed, train of reduction gears is installed on the right flange, train of reduction gears just step cone is meshed with gear on the switched reluctance motor clutch end axle, reduction gearing group end wheel is meshed with the cylinder ring gear, at the cylinder two ends left and right sides end cap is installed, the roller end cover outside is equipped with left redundant wheel and right redundant wheel, in the auxiliary wheel outside brake ratchet is installed, cylinder, auxiliary wheel and brake ratchet are installed in a left side by left flange shaft and right flange shaft respectively, on the right support abutment, left redundant wheel and right redundant wheel can be made of one with the brake ratchet respectively.Drive disk assembly also can be the cycloidal planetary gear speed reducer structure, and the output shaft of motor connects planet cycloid pin reductor power shaft, and planet cycloid pin speed reducer output shaft is installed gear, this gear and the engagement of cylinder ring gear; Housing one end of planet cycloid pin reductor is fixedlyed connected with the housing of motor, and the other end and right flange shaft are fixedly linked.
Switched reluctance machines adopts continuous speed regulation system, and this system is reversible speed control, and specified rate is a rotating speed, can be in forward operation, forward braking, inverted running, plugging automatically according to the condition of loading motor; Motor, reductor and drive disk assembly, cylinder design are an integral body, because the shielding of cylinder has reduced the big shortcoming of switched reluctance machines noise, has reduced the appearance and size of running part simultaneously, and the appearance and size of complete machine is reduced, weight saving has improved economy and profile is more attractive in appearance; The work system of sucker rod, load-bearing belt, cylinder and balancing weight adopts frictional drive, and friction system skids during holddown, avoids breaking sucker rod, the overload automatic shutdown protection.Balancing weight can not turn over the machine accident in frame, solved and turned over the machine problem, balancing weight can not take place during work injure accidents such as people, animal by a crashing object.The complete machine core is positioned at frame top and has reduced the robbed or burgled chance of field equipment, and safeguard protection is more reliably perfect; Suitably adjust counterweight according to individual well operation examination account of somebody's meritorious service condition, it is in a basic balance to reach sucker rod uplink and downlink load, and the high installed capacity of the degree of balance is low; Electrical system can realize the frequent start-stop of the positive decommuntation of motor, and can control respectively sucker rod uplink and downlink speed, and stroke, jig frequency is stepless adjustable, can be good at adapting to the oil well situation; End with wire rope during well workover is fixed on the auxiliary wheel, and the other end is fixed on the balancing weight, balancing weight can be mentioned, and allows brake and brake ratchet block, can be for convenience detach and being connected of installation belt and sucker rod.Remove the connecting bolt and the diagonal member of mobile base and firm banking, can abdicate well head with the workover rig frame of falling.
Description of drawings Fig. 1 is a Facad structure schematic diagram of the present utility model; Fig. 2 is a side structure schematic diagram of the present utility model, Fig. 3 is the schematic diagram of built-in switch reluctance electric cylinder in the utility model, 1 junction box among the figure, 2 left support abutments, 3 left flange shaft, 5 barrels, 6 gears, 7 gears, 8 gears, 9 ring gears, 10 right flange shaft, 11 right support abutments, 12 cover thoroughly, 13 right end caps, 14 left end caps, 16 sensors, 17 frictional layers, 21 electrical control cubicles, 22 bases, 23 mobile base, 24 frames, 25 sucker rods, 26 belts, 27 balancing weights, 29 built-in switch reluctance electric cylinders, 30 limit switches, 31 reversing switches, 32 firm bankings, 33 diagonal members, 34 wire rope, 35 brakes.
The specific embodiment is with reference to accompanying drawing 1, accompanying drawing 2, accompanying drawing 3, a kind of built-in switch reluctance electric cylinder oil pumper, it comprises junction box 1, left support abutment 2, left side flange shaft 3, barrel 5, gear 6,7,8, ring gear 9, right flange shaft (10), right support abutment 11, saturating lid 12, right end cap 13, left end cap 14, sensor 16, frictional layer 17, electrical control cubicles 21, basis 22, mobile base 23, frame 24, sucker rod 25, belt 26, balancing weight 27, auxiliary wheel, built-in switch reluctance electric cylinder 29, limit switch 30, reversing switch 31, firm banking 32, diagonal member 33, wire rope 34, brake 35.
On the basis 22 mobile base 23, firm banking 32 are installed, frame 24 is installed on the mobile base 23, and built-in switch reluctance electric cylinder 29 is installed at the top of frame 24, is wound with driving belt 26 on the cylinder 29, one end of driving belt 26 is connected with sucker rod 25, and the other end is connected with balancing weight 27.Two auxiliary wheels are equipped with at the two ends of cylinder 29, there is brake ratchet 20 outer face of auxiliary wheel, one side of brake ratchet 20 is a brake 35, use when wire rope 34, auxiliary wheel, brake ratchet 20, brake 35 are taken being connected of belt and sucker rod 25 apart and need be mentioned balancing weight 27 at needs.(end with wire rope during use is fixed on the auxiliary wheel, and the other end is fixed on the balancing weight 27.) upper and lower of frame 24 is equipped with limit switch 30, reversing switch 31 is equipped with at the middle part, and diagonal member 33 is fixed between frame 24 and the firm banking 32; Electrical control cubicles 21 is installed in a side of oil pumper.In the cavity that the barrel 5 of built-in switch reluctance electric cylinder and right end cap 13, left end cap 14 are formed oil immersed type switched reluctance machines 4, reduction gearing 6,7,8 are housed, ring gear 9 are arranged in the barrel installed inside; Gear 6 is installed on the output shaft of motor, gear 6 and gear 7 engagements, and gear 7 and gear 8 are on same axle, and gear 8 drives ring gears 9, and left flange shaft 3 one ends link to each other with the sensor shield of motor 4, and the other end is fixed on the left support abutment 2; The sensor 16 of switched reluctance machines 4 is installed in the sensor wrap 15, the input power supply of motor 4 and the holding wire of sensor 16 are drawn from the center of left flange shaft 3 and are connected in the junction box 1, one end and motor 4 housings of right flange shaft 10 are fixed together, and the other end and right support abutment 11 are fixed together.In order to increase the frictional force between belt 26 and the barrel 5, frictional layer 17 is housed outside barrel 5.
Control cabinet 21 gives switched reluctance machines 4 power supplies during starting, and the gear 6 on the output shaft rotates, and slowing down through reduction gearing 7,8 drives ring gears 9 and rotate, because of ring gear 9 is fixed on the inner face of barrel 5, so barrel 5 rotates with respect to motionless flange shaft.In the cavity that barrel 5 and right end cap 13, left end cap 14 are formed lubrication oil is housed, lubrication oil has played the effect of giving gear lubrication, and lubrication oil is passed to cylinder outer wall with the heat of switched reluctance machines 4 operation generations simultaneously, by outer wall heat is loose to atmosphere then.Be added with oil sealing between saturating lid 12 and end cap, prevented that lubrication oil from spilling from flange shaft.Sensor wrap 15 has prevented the pollution of sensor oil-feed in sensor 16 is sealed in.
Original state is the bottom of balancing weight 27 in frame 24 after the oil pumper installation, sucker rod 25 is being mentioned state (being the nearly frame top of sucker rod termination), turning to of control cabinet 21 index drums 29 can only make upwards operation of balancing weight 27 during starting, control cabinet 21 gives switched reluctance machines 4 power supplies, gear 6 on switched reluctance machines 4 output shafts rotates, through reduction gearing 7,8 slow down drives ring gear 9 rotations, barrel 5 rotates by frictional force drive belt 26 walkings of frictional layer 17 with belt 26, make sucker rod 25 and balancing weight 27 lose equilibrium state, because of the power of descending power of the deadweight of sucker rod 25 and cylinder makes balancing weight 27 up, sucker rod 25 falls.Produce commutation signal during balancing weight 27 process reversing switches 31, supply with control cabinet and remember next rotation direction.Control cabinet 21 is specified the running revolution of motor 4, give control cabinet 21 through sensor 16 with rotating speed, revolution signal feedback, final control balancing weight 27 arrives the upstroke terminal point, (switched reluctance machines 4 is a four quadrant running for motor 4 stalls and braking, be forward operation, forward braking, inverted running, plugging), this moment, balancing weight 27 was mentioned, for sucker rod 25 up oil pumping works done have stored energy.Control cabinet 21 is controlled motors 4 backward rotation then, this moment, sucker rod 25 is up to go out ground to oily pumping because the composite force of the deadweight of balancing weight 27 and cylinder 29 drags, through reversing switch 31, produce commutation signal supply control cabinet again and remember next starting operation direction in the balancing weight 27 descending processes.Balancing weight 27 comes downwards to control motor 4 stalls of down stroke terminal point control cabinet and braking.So go round and begin again and finish the working cycles of carrying oil.Because the well shape difference of each well, the jig frequency that needs is different, and process control cabinet 21 can be adjusted the rotating speed of motor 4 easily, reaches required jig frequency.The stroke length that needs can change control cabinet revolution parameter to be adjusted, and ginseng is excessive controls autostop because limit switch 30 produces stopping signal by control cabinet if transfer, and peace needs suitably to adjust to reach the required stroke of oil pumper again.
When needing workover treatment; making oil pumper run to original state shuts down; press the wire rope 34 that last auxiliary wheel is connected with balancing weight 27; the starting oil pumper is mentioned 2/3rds places shutdown of balancing weight 27 to stroke; brake is combined with brake ratchet 20; with the beam hanger clip sucker rod 25 is stuck in well head, can unclamps being connected of sucker rod 25 and belt 26 like this in lower position.Then brake 35 and brake ratchet 20 are separated, with the manual starting oil pumper balancing weight 27 is slowly fallen on the mobile base 23, lay down diagonal member 33, the set bolt of mobile base of dismantling 23 and firm banking 32, unclamp the connecting bolt on mobile base 23 and basis 22, just can abdicate well head with the workover rig oil pumper that fell.The peace reverse procedure returned to original position and gets final product after well workover was finished.