CN114465409A - Semi-direct drive dragging device of oil pumping unit - Google Patents
Semi-direct drive dragging device of oil pumping unit Download PDFInfo
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- CN114465409A CN114465409A CN202111647051.XA CN202111647051A CN114465409A CN 114465409 A CN114465409 A CN 114465409A CN 202111647051 A CN202111647051 A CN 202111647051A CN 114465409 A CN114465409 A CN 114465409A
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- 238000005086 pumping Methods 0.000 title claims abstract description 48
- 239000003638 chemical reducing agent Substances 0.000 claims abstract description 40
- 210000004907 gland Anatomy 0.000 claims abstract description 20
- 229910000831 Steel Inorganic materials 0.000 claims description 9
- 239000010959 steel Substances 0.000 claims description 9
- 230000004323 axial length Effects 0.000 claims description 4
- 229910001220 stainless steel Inorganic materials 0.000 claims description 4
- 239000010935 stainless steel Substances 0.000 claims description 4
- 230000005540 biological transmission Effects 0.000 abstract description 8
- 238000012423 maintenance Methods 0.000 abstract description 6
- 230000035515 penetration Effects 0.000 abstract description 3
- 238000009434 installation Methods 0.000 description 11
- 230000006872 improvement Effects 0.000 description 9
- 230000008878 coupling Effects 0.000 description 7
- 238000010168 coupling process Methods 0.000 description 7
- 238000005859 coupling reaction Methods 0.000 description 7
- 238000007667 floating Methods 0.000 description 5
- 238000007789 sealing Methods 0.000 description 5
- 238000010248 power generation Methods 0.000 description 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 3
- 230000033001 locomotion Effects 0.000 description 3
- 230000007547 defect Effects 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 241001023788 Cyttus traversi Species 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 230000001133 acceleration Effects 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000002457 bidirectional effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000005465 channeling Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000000565 sealant Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
- H02K7/10—Structural association with clutches, brakes, gears, pulleys or mechanical starters
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/12—Methods or apparatus for controlling the flow of the obtained fluid to or in wells
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B17/00—Pumps characterised by combination with, or adaptation to, specific driving engines or motors
- F04B17/03—Pumps characterised by combination with, or adaptation to, specific driving engines or motors driven by electric motors
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B47/00—Pumps or pumping installations specially adapted for raising fluids from great depths, e.g. well pumps
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J3/00—Circuit arrangements for ac mains or ac distribution networks
- H02J3/38—Arrangements for parallely feeding a single network by two or more generators, converters or transformers
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
- H02K5/22—Auxiliary parts of casings not covered by groups H02K5/06-H02K5/20, e.g. shaped to form connection boxes or terminal boxes
- H02K5/225—Terminal boxes or connection arrangements
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
- H02K7/18—Structural association of electric generators with mechanical driving motors, e.g. with turbines
- H02K7/1807—Rotary generators
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Mining & Mineral Resources (AREA)
- General Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
Abstract
The invention relates to a semi-direct-drive dragging device of an oil pumping unit, belonging to a device which is connected with a motor and used for controlling mechanical energy, comprising a speed reducer and the motor, wherein a stator core is fixed on the inner ring circumference of a cylindrical shell, a back plate and a gland are respectively fixed at two ends of the cylindrical shell, a driving shaft of the speed reducer penetrates through the back plate and is arranged in the cylindrical shell, a rotor is arranged on the end head of the driving shaft, and the shell of the speed reducer is fixed with the back plate through a switching disc. The longitudinal section of the adapter plate is of an inwards concave structure, the inner bottom of the adapter plate is provided with a penetration hole of the driving shaft, the adapter plate is buckled on the back plate, the scattering edges of the periphery of the adapter plate are fixed with the back plate, and the inner bottom of the adapter plate is fixed with the speed reducer shell. The motor of the device has no bearing and is free from maintenance in the later period; the driving shaft of the speed reducer is directly connected through the rotor, so that the transmission efficiency is high; the power system of the semi-direct-drive dragging device of the pumping unit is connected with the speed reducer through the adapter plate, a coupler is not used, the speed reducer is not easy to damage, and the adapter plate is connected through the connecting position of the original bearing cover of the pumping unit speed reducer.
Description
Technical Field
The invention belongs to a device which is connected with a motor and is used for controlling mechanical energy, and particularly relates to a semi-direct-drive dragging device of an oil pumping unit.
Background
The pumping unit is powered by power machine, the high speed rotation of the power machine is converted into low speed rotation of the crank of the pumping unit by the speed reducer, the rotary motion is converted into up and down reciprocating motion of the horse head of the pumping unit by the crank-connecting rod-walking beam mechanism, and the deep well pump is driven to work by the rope hanger assembly.
The existing beam-pumping unit structure is that a large-diameter belt pulley is usually hung on a drive shaft of a speed reducer and is driven by an asynchronous motor through a belt to run, as shown in fig. 10, the drive structure has the following defects:
(1) the driving volume is larger;
(2) the belt is seriously abraded and frequently replaced, and the maintenance workload is large;
(3) the tightness of the belt is difficult to adjust, the transmission efficiency is unstable and generally low;
(4) when the pumping unit operates, the belt is broken, and only the inspection personnel can replace the belt after finding, so that the yield is influenced.
The publication No. CN 210536426U, entitled Floating mounting structure of semi-direct-drive permanent magnet motor of beam pumping unit, records that it includes "hollow shaft 3 and floating coupling 4, the floating coupling 4 is sleeved outside input shaft 6 and shaft end gland 5, the hollow shaft 3 is fixedly sleeved outside the floating coupling 4, the bearing 8 is sleeved outside the hollow shaft 3", it realizes the transmission of power and the running of rotor through the floating coupling 4 and the bearing 8, it solves the above problem to a certain extent, but because its structure is unreasonable, the coupling and the bearing have the problem of service life, and when the motor is installed, the coupling and the bearing have a certain precision requirement for the height from the motor mounting plane to the center of the input shaft axis of the reducer, resulting in difficult installation, the coupling and the bearing need frequent maintenance after installation, and because the reducer has long service life, the speed reducer input shaft has the phenomenon of 'shaft channeling', so that the coupler is frequently damaged, needs to be detached and replaced, the workload of workers is increased, the motor can only be detached and returned to a factory for maintenance when the bearing is replaced, and the process generally needs one to two days, so that the oil field yield is influenced.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provides a semi-direct-drive dragging device of an oil pumping unit.
The invention relates to a semi-direct-drive dragging device of an oil pumping unit, which comprises a speed reducer and a motor, wherein a stator core is fixed on the inner circumference of a cylindrical shell, a back plate and a gland are respectively fixed at two ends of the cylindrical shell, a driving shaft of the speed reducer penetrates through the back plate and is arranged in the cylindrical shell, a rotor is arranged at the end head of the driving shaft, and the shell of the speed reducer is fixed with the back plate through an adapter plate.
As a further improvement of the invention, the longitudinal section of the adapter plate is of a concave structure, the inner bottom is provided with a penetration hole of the driving shaft, the adapter plate is buckled on the back plate, the scattered edges of the periphery of the adapter plate are fixed with the back plate, and the inner bottom is fixed with the upper shell and the lower shell of the speed reducer.
As a further improvement of the invention, a shaft sleeve is sleeved on a shaft head of the driving shaft, a rotor support ring is sleeved outside the shaft sleeve, a rotor support is arranged on the periphery of the outer ring of the rotor support ring, magnetic steel is fixed in a groove of the outer ring of the rotor support, and a stainless steel band is fixed outside the magnetic steel.
As a further improvement of the invention, the length of the magnetic steel is larger than the axial length of the stator core,
as a further improvement of the invention, the outer circle of the shaft sleeve is a cylinder, the inner hole of the shaft sleeve is a taper hole, and a gap is axially arranged on the shaft sleeve.
As a further improvement of the invention, the rotor gland pressing shaft sleeve and the rotor support ring are arranged, and the shaft end pressing cover presses the rotor gland and is fixed with the end head of the driving shaft.
As a further improvement of the invention, a shaft sleeve adjusting pad is additionally arranged at the front end of the shaft sleeve.
As a further improvement of the invention, a rotor adjusting pad is additionally arranged at the front end of the rotor bracket ring.
As a further improvement of the invention, a key groove I is axially arranged at the end head of the driving shaft and matched with a key groove II on the inner ring of the shaft sleeve, and a flat key II is arranged in the opposite key groove; the inner ring surface of the rotor support ring is provided with a key groove III which is matched with a key groove IV on the outer ring of the shaft sleeve, and a flat key I is arranged in the key groove opposite to the key groove III.
As a further improvement of the invention, a motor junction box is fixed on the back plate, a wiring terminal in the motor junction box is connected to a control cabinet through a cable, and a four-quadrant frequency converter is arranged in the control cabinet.
The semi-direct-drive dragging device of the oil pumping unit has the following beneficial effects:
1) no bearing is arranged in the motor, and the maintenance is avoided in the later period;
2) the driving structure is simple, a belt is omitted, and labor is saved;
3) the driving shaft of the speed reducer is directly connected through the rotor, so that the transmission efficiency is high;
4) the power system of the semi-direct-drive dragging device of the pumping unit is connected with the speed reducer through the adapter plate, a coupler is not needed, the transmission is not easy to damage, and the adapter plate is connected by utilizing the connecting position of the original bearing cover of the pumping unit speed reducer;
5) the output rotating speed of the power system is adjusted through the control cabinet, so that the sprint of the pumping unit is adjusted, and the abrasion of the pumping rod is reduced;
6) the control cabinet adopts a four-quadrant frequency converter, the harmonic content of the four-quadrant frequency converter is low, the pollution to a power grid is small, the harmonic treatment is not needed, the electric energy of the pumping unit is fed back to the power grid when a power system of the half-direct-drive dragging device of the lower-stroke pumping unit enters a power generation state, the waste of the electric energy consumed by a common frequency converter through a brake unit resistor is avoided.
Drawings
FIG. 1 is a schematic structural view of a semi-direct drive dragging device of an oil pumping unit;
FIG. 2 is a sectional view taken along line A-A in FIG. 1;
FIG. 3 is a cross-sectional view taken along line B-B of FIG. 1;
FIG. 4 is a schematic view of a rotor structure according to the present invention;
FIG. 5 is a rear view of the motor of the present invention;
FIG. 6 is a schematic view of the construction of the bushing of the present invention;
FIG. 7 is a schematic structural diagram of an adapter plate according to the present invention;
FIG. 8 is a schematic view of the structure of the adjustment pad of the present invention;
FIG. 9 is a schematic view of the working state of the semi-direct drive dragging device of the pumping unit of the present invention;
fig. 10 is a schematic view showing an operation state of a conventional beam pumping unit.
Detailed Description
The semi-direct-drive dragging device of the oil pumping unit comprises a speed reducer 1 and a motor 2, wherein the motor 2 is characterized in that a stator core 4 is fixed on the inner ring periphery of a cylindrical shell 3, a coil is wound on the stator core 4, an inner pressure ring 25 and an outer pressure ring 26 are respectively arranged on two sides of the stator core 4 to tightly press the stator core 4, and the inner pressure ring 25 and the outer pressure ring 26 are both welded and fixed with the shell 3. A back plate 5 and a gland 6 are respectively fixed at two ends of the cylindrical shell 4 to seal the cylindrical shell, the cylindrical shell 4 is fixed with the back plate 5 through bolts, and sealant is smeared at the joint of the cylindrical shell 4 and the back plate 5.
A driving shaft 7 of the speed reducer 1 penetrates through the back plate 5 and is arranged in the cylindrical shell 4, a rotor 8 is arranged at the end of the driving shaft, the rotor 8 comprises a rotor support ring 15 and a rotor support 16 arranged on the periphery of an outer ring, magnetic steel 17 is fixed in a groove in the outer ring of the rotor support 16 through glue joint, and a stainless steel belt 18 is fixed outside the groove. The magnetic steel is fixed with the groove of the outer ring of the rotor bracket. The stainless steel band wraps the outer surface of the rotor support which is bonded with the magnetic steel and is fixed with the rotor support through welding. The axial length of the rotor in the device, namely the length of the permanent magnet bonded on the rotor support is greater than the axial length of the stator core, so that the influence of the axial movement of the driving shaft of the speed reducer on the performance of the motor is avoided.
In the device, a shell of a speed reducer 1 is fixed with a back plate 5 through an adapter plate 9, the longitudinal section of the adapter plate 9 is of a concave structure, a penetration hole 10 of a driving shaft 7 is formed in the inner bottom of the adapter plate 9, the adapter plate 9 is buckled on the back plate 5, a scattered edge 11 of the outer periphery of the adapter plate is connected with the back plate 5 through bolts and positioning bolts, and a sealing ring 31 is arranged on the connecting surface of the adapter plate 9; the inner bottom of the adapter disc is connected with the upper shell 12 and the lower shell 13 of the speed reducer 1 through bolts and positioning bolts, and the connecting surface of the adapter disc is provided with a sealing ring 30. The upper end of the positioning bolt is a polished rod, and the lower end of the positioning bolt is a thread, so that the horizontal installation of the motor is ensured while the connecting effect is achieved. The rotor of the semi-direct-drive dragging device of the oil pumping unit rotates by utilizing the driving shaft of the speed reducer, and the driving shaft is provided with the bearing 35, so that the semi-direct-drive dragging device of the oil pumping unit is internally provided with no bearing, and a motor is free of maintenance after being installed. This device utilizes the position of the bearing cap of current speed reducer driving shaft department to install, original bearing cap no longer uses, the half drive device of beam-pumping unit is being connected to switching dish one side tang, the bearing of speed reducer driving shaft department is blocked to the opposite side tang, the switching dish has two location tangs, one with the epaxial location tang installation of speed reducer driving, one with the location tang installation on the backplate, in the switching dish, the outer lane is equipped with the screw hole, the size that the switching dish has two location tangs can carry out size adjustment according to the speed reducer of different models. The adapter plate is provided with two sealing grooves for mounting a sealing ring; the back plate is provided with two positioning spigots, one of the positioning spigots is installed with the positioning spigot of the adapter plate, the positioning spigot on one shell is installed, the back plate and the positioning spigot of the adapter plate can be installed according to different adapter plates for different speed reducers, and the size of the back plate can be adjusted.
The device is characterized in that a shaft sleeve 14 is sleeved on a shaft head of a driving shaft 7, the excircle of the shaft sleeve 14 is a cylinder, an inner hole is a taper hole, and the inner surface and the outer surface of the shaft sleeve are respectively provided with a key groove, namely, a key groove I is axially arranged at the end head of the driving shaft 7 and matched with a key groove II on the inner ring of the shaft sleeve 14, and a flat key II 21 is arranged in the opposite key groove; the inner ring surface of the rotor support ring 15 is provided with a key groove III which is matched with a key groove IV on the outer ring of the shaft sleeve 14, and a flat key I22 is arranged in the opposite key groove. The power of the rotor is transmitted to a driving shaft of the speed reducer through a flat key I22, a connecting hole is formed in the end face of the speed reducer and used for being fixedly connected with a rotor gland, and a seam 34 is cut in one side of the shaft sleeve, so that the shaft sleeve has elasticity. The inner hole of the shaft sleeve can be adjusted according to the speed reducers of different models. When installing half direct drive unit of beam-pumping unit, installation axle sleeve 14, the back is aimed at with the keyway I of driving shaft to the keyway II of axle sleeve hole, and installation parallel key II 21 continues the installation rotor again, and the rotor may be misaligned with the parallel key groove of axle sleeve, and artifical rotatory rotor this moment aligns the keyway III of rotor with the keyway of the axle sleeve outer periphery, and installation parallel key I22 because the axle sleeve has elasticity, more does benefit to artifical rotatory rotor.
The rotor support ring 15 is in transmission with the shaft sleeve 14 through a flat key I22, and the flat key I22 is installed on the outer surface of the shaft sleeve 14. The driving shaft 7 is in transmission with the shaft sleeve 14 through a flat key I21. The rotor gland 19 fixes the shaft sleeve 14 and the rotor support ring 15 through bolts, the shaft end gland 20 is fixed with the driving shaft 7 of the reduction gearbox through bolts 36 and compresses the rotor end cover 19, the gland is fixed with the shell through bolts, the sealing ring 27 is installed on the connection surface of the gland 6 and the cylindrical shell 3, and the base 28 is fixed with the cylindrical shell 3 through bolts. And an eyebolt 29 is fixedly arranged at the top end of the cylindrical shell 3 and used for hoisting the semi-direct-drive dragging device of the pumping unit.
The semi-direct drive dragging device of the oil pumping unit has the following installation process when in use: stopping pumping the beam-pumping unit 37, locking the brake, removing the belt pulley 38 and the bearing cap 39, installing a switching disc, a back plate, an iron core, an inner pressure ring, an outer pressure ring and a stator iron core, wherein the shell is an assembly at the moment, installing the assembly and the switching disc, installing a shaft sleeve, installing a flat key, adding an adjusting pad according to the relative position of the stator iron core and a rotor, installing a rotor gland, installing a shaft end gland, installing a gland, connecting a control cabinet with a power system of the semi-direct-drive dragging device of the pumping unit through a cable, and completing the installation of the semi-direct-drive dragging device of the pumping unit.
According to the device, a rotor adjusting pad 32 or a shaft sleeve adjusting pad 33 can be additionally arranged on the inner side of the rotor gland 19 according to the operation state, the shaft sleeve adjusting pad 33 is positioned at the front end of the shaft sleeve 14, namely the size of an inner hole of the rotor adjusting pad 32 is consistent with the size of the outer diameter of the shaft sleeve adjusting pad 33, and the size of the outer diameter of the shaft sleeve adjusting pad 33 is consistent with the size of the outer diameter of the shaft sleeve. In the device, a rotor adjusting pad or a shaft sleeve adjusting pad can be added between a rotor gland and a rotor support and between shaft sleeves to adjust the relative position of a rotor and a stator core, the rotor and the stator core are aligned in theory, but because a shaft head of a driving shaft of a speed reducer is a conical shaft, an inner hole of the shaft sleeve is also a conical hole, both the two parts have processing errors, after the rotor is installed, the actual installation position of the rotor and the theoretical position of the rotor have a deviation phenomenon, if the rotor deviates to one side of the speed reducer, the shaft sleeve adjusting pad is added to adjust the position of the rotor, otherwise, the rotor adjusting pad is added.
In this device, motor terminal box 23 passes through the bolt and is fixed with backplate 5, and the speed of rotor can be adjusted through the frequency that changes the four-quadrant converter on switch board 24 is received through the cable to the binding post in the motor terminal box 23. A four-quadrant frequency converter and an energy feedback unit are installed in the control cabinet 24. The four-quadrant frequency converter can save electric energy, and has low harmonic content, little pollution to a power grid and no need of harmonic treatment; and secondly, when the power system of the semi-direct drive dragging device of the lower stroke oil pumping unit enters a power generation state, the electric energy of the oil pumping unit is fed back to the power grid in the power generation state, so that the waste of electric energy consumed by a common frequency converter through a brake unit resistor is avoided. The four-quadrant frequency converter has an energy feedback function, the common frequency converter and the energy feedback unit also have the energy feedback function, but the harmonic content of the four-quadrant frequency converter is lower.
The invention relates to a semi-direct-drive dragging device of an oil pumping unit, wherein a four-quadrant frequency converter control cabinet of the dragging device comprises a cabinet body, a four-quadrant frequency converter, a touch screen, a 4G module (or other remote communication modules), a start-stop button, a wiring terminal and the like. The parameter setting (including frequency/rotating speed/number of strokes, motor parameters, acceleration and deceleration time, shutdown mode, motor parameter self-learning, rotation direction and the like) can be completed through a touch screen connected with the four-quadrant frequency converter or through an external keyboard. After the corresponding parameters are set, the starting is finished by pressing a starting button, the shutdown is finished by pressing a stopping button when the shutdown is needed, the 4G module can realize data remote transmission and remote control, and the working state can be monitored and controlled by a PC (personal computer) end or a mobile phone end. The four-quadrant frequency converter mainly realizes speed regulation by changing output frequency so as to change the stroke frequency, and when the motor is in a dragging state, alternating current is rectified and inverted by the four-quadrant frequency converter and then transmits energy to the motor so as to drive the motor to operate; when the motor enters a power generation state due to the action of load inertia, the four-quadrant frequency converter feeds energy back to the alternating current power grid to finish the bidirectional flow of the energy. The four-quadrant adopts the double PWM control technology to improve the power factor of the system and eliminate the harmonic pollution on the network side. And the four-quadrant operation of the motor is realized, and high-quality energy feedback is formed.
Claims (10)
1. Half drive arrangement of beam-pumping unit, including speed reducer (1) and motor (2), motor (2) be fixed stator core (4) in the inner ring week of cylindric casing (3), fixed backplate (5) and gland (6) respectively at the both ends of cylindric casing (4), drive shaft (7) of speed reducer (1) pass backplate (5) and arrange cylindric casing (3) in to be equipped with rotor (8) on the drive shaft end, the casing of its characterized in that speed reducer (1) is fixed mutually with backplate (5) through switching dish (9).
2. The semi-direct-drive dragging device of the oil pumping unit as claimed in claim 1, wherein the longitudinal section of the adapter plate (9) is of a concave structure, the inner bottom of the adapter plate is provided with a through hole (10) for the driving shaft (7), the adapter plate (9) is buckled on the back plate (5), the scattering edge (11) on the periphery of the adapter plate is fixed with the back plate (5), and the inner bottom of the adapter plate is fixed with the upper shell (12) and the lower shell (13) of the speed reducer (1).
3. The semi-direct drive dragging device of the oil pumping unit as claimed in claim 1 or 2, wherein a shaft sleeve (14) is sleeved on the shaft head of the driving shaft (7), a rotor support ring (15) is sleeved outside the shaft sleeve (14), a rotor support (16) is arranged around the outer ring of the rotor support ring (15), magnetic steel (17) is fixed in a groove of the outer ring of the rotor support (16), and a stainless steel band (18) is fixed outside the magnetic steel.
4. Semi-direct drive dragging device of oil pumping unit according to claim 3 characterized in that the length of the magnetic steel (17) is longer than the axial length of the stator core (4).
5. The semi-direct drive dragging device of the oil pumping unit as claimed in claim 4, wherein the outer circle of the shaft sleeve (14) is cylindrical, the inner hole is a taper hole, and a gap (34) is axially arranged on the shaft sleeve.
6. The semi-direct-drive dragging device of the oil pumping unit as claimed in claim 4, wherein a rotor gland (19) compresses the shaft sleeve (14) and the rotor support ring (15), and a shaft end gland (20) compresses the rotor gland (19) and is fixed with the end of the driving shaft (7).
7. The semi-direct drive dragging device of the oil pumping unit as claimed in claim 5, wherein a shaft sleeve adjusting pad (33) is additionally arranged at the front end of the shaft sleeve (14).
8. The semi-direct drive dragging device of the oil pumping unit as claimed in claim 5, wherein a rotor adjusting pad (32) is additionally arranged at the front end of the rotor support ring (15).
9. A semi-direct drive dragging device of an oil pumping unit as claimed in claim 3, characterized in that a key groove I is axially arranged at the end of the driving shaft (7) and is matched with a key groove II on the inner ring of the shaft sleeve (14), and a flat key II (21) is arranged in the key groove opposite to the key groove I; the inner ring surface of the rotor support ring (15) is provided with a key groove III which is matched with a key groove IV on the outer ring of the shaft sleeve (14), and a flat key I (22) is arranged in the opposite key groove.
10. The semi-direct drive dragging device of the pumping unit as claimed in claim 1, characterized in that a motor junction box (23) is fixed on a back plate, a wiring terminal in the motor junction box (23) is connected to a control cabinet (24) through a cable, and a four-quadrant frequency converter is arranged in the control cabinet (24).
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111647051.XA CN114465409A (en) | 2021-12-30 | 2021-12-30 | Semi-direct drive dragging device of oil pumping unit |
| CN202410030210.9A CN118074420A (en) | 2021-12-30 | 2021-12-30 | Semi-direct driving dragging device of oil pumping unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111647051.XA CN114465409A (en) | 2021-12-30 | 2021-12-30 | Semi-direct drive dragging device of oil pumping unit |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202410030210.9A Division CN118074420A (en) | 2021-12-30 | 2021-12-30 | Semi-direct driving dragging device of oil pumping unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114465409A true CN114465409A (en) | 2022-05-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111647051.XA Pending CN114465409A (en) | 2021-12-30 | 2021-12-30 | Semi-direct drive dragging device of oil pumping unit |
| CN202410030210.9A Pending CN118074420A (en) | 2021-12-30 | 2021-12-30 | Semi-direct driving dragging device of oil pumping unit |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202410030210.9A Pending CN118074420A (en) | 2021-12-30 | 2021-12-30 | Semi-direct driving dragging device of oil pumping unit |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203206051U (en) * | 2013-04-03 | 2013-09-18 | 浙江富迅科技有限公司 | Housing-free and switch reluctance traction machine |
| CN106787358A (en) * | 2016-12-20 | 2017-05-31 | 哈尔滨中传控制技术有限公司 | A kind of wheeled motor and the beam pumping unit using the motor |
| JP2018038099A (en) * | 2016-08-29 | 2018-03-08 | Ntn株式会社 | Electric motor |
| CN108199512A (en) * | 2018-02-08 | 2018-06-22 | 大连宝锋机器制造有限公司 | Half directly-drive permanent magnet motor |
| CN210327267U (en) * | 2019-08-14 | 2020-04-14 | 陕西伟景机器人科技有限公司 | Speed reducer with built-in motor |
-
2021
- 2021-12-30 CN CN202111647051.XA patent/CN114465409A/en active Pending
- 2021-12-30 CN CN202410030210.9A patent/CN118074420A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203206051U (en) * | 2013-04-03 | 2013-09-18 | 浙江富迅科技有限公司 | Housing-free and switch reluctance traction machine |
| JP2018038099A (en) * | 2016-08-29 | 2018-03-08 | Ntn株式会社 | Electric motor |
| CN106787358A (en) * | 2016-12-20 | 2017-05-31 | 哈尔滨中传控制技术有限公司 | A kind of wheeled motor and the beam pumping unit using the motor |
| CN108199512A (en) * | 2018-02-08 | 2018-06-22 | 大连宝锋机器制造有限公司 | Half directly-drive permanent magnet motor |
| CN210327267U (en) * | 2019-08-14 | 2020-04-14 | 陕西伟景机器人科技有限公司 | Speed reducer with built-in motor |
Also Published As
| Publication number | Publication date |
|---|---|
| CN118074420A (en) | 2024-05-24 |
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