CN112610190A - Oil pumping unit based on elastic holding rod traction technology - Google Patents
Oil pumping unit based on elastic holding rod traction technology Download PDFInfo
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- CN112610190A CN112610190A CN202011433537.9A CN202011433537A CN112610190A CN 112610190 A CN112610190 A CN 112610190A CN 202011433537 A CN202011433537 A CN 202011433537A CN 112610190 A CN112610190 A CN 112610190A
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- pumping unit
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- chain
- elastic
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- 238000005086 pumping Methods 0.000 title claims abstract description 81
- 238000005516 engineering process Methods 0.000 title claims abstract description 32
- 230000007246 mechanism Effects 0.000 claims abstract description 136
- 238000009434 installation Methods 0.000 claims abstract description 25
- 210000001503 joint Anatomy 0.000 claims abstract description 19
- 230000005540 biological transmission Effects 0.000 claims description 68
- 238000003825 pressing Methods 0.000 claims description 49
- 239000003921 oil Substances 0.000 claims description 30
- 230000009467 reduction Effects 0.000 claims description 21
- 229910000831 Steel Inorganic materials 0.000 claims description 14
- 239000010959 steel Substances 0.000 claims description 14
- 238000004140 cleaning Methods 0.000 claims description 10
- 238000007789 sealing Methods 0.000 claims description 4
- 229910000906 Bronze Inorganic materials 0.000 claims description 3
- 229910000617 Mangalloy Inorganic materials 0.000 claims description 3
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 claims description 3
- 239000010974 bronze Substances 0.000 claims description 3
- KUNSUQLRTQLHQQ-UHFFFAOYSA-N copper tin Chemical compound [Cu].[Sn] KUNSUQLRTQLHQQ-UHFFFAOYSA-N 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- 238000005096 rolling process Methods 0.000 claims description 3
- 230000003068 static effect Effects 0.000 claims description 3
- 239000010720 hydraulic oil Substances 0.000 claims description 2
- 230000006835 compression Effects 0.000 claims 1
- 238000007906 compression Methods 0.000 claims 1
- 238000000034 method Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 7
- 230000007547 defect Effects 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000010779 crude oil Substances 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 230000009931 harmful effect Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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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
- E21B43/121—Lifting well fluids
- E21B43/126—Adaptations of down-hole pump systems powered by drives outside the borehole, e.g. by a rotary or oscillating drive
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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
- E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
- E21B17/006—Accessories for drilling pipes, e.g. cleaners
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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
- E21B19/00—Handling rods, casings, tubes or the like outside the borehole, e.g. in the derrick; Apparatus for feeding the rods or cables
- E21B19/10—Slips; Spiders ; Catching devices
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- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Mechanical Engineering (AREA)
- Earth Drilling (AREA)
Abstract
The invention relates to a pumping unit based on an elastic holding rod traction technology, which comprises a pumping unit main machine (1), a polished rod guide pipe mechanism (2), a well head butt joint installation mechanism (3), a polished rod (4) and a drive control system (5); the polished rod conduit mechanism (2) is arranged on the top surface of the pumping unit main machine (1); the lower bottom surface of the oil pumping unit main machine (1) is arranged on a well head butt joint installation mechanism (3); the polish rod (4) penetrates through the wellhead butt joint installation mechanism (3) and the pumping unit host (1), and the top end of the polish rod (4) is arranged inside the polish rod guide pipe mechanism (2); the drive control system (5) is arranged beside the pumping unit main machine (1) and is connected with the pumping unit main machine (1) through a cable. The oil pumping unit based on the elastic holding rod traction technology improves the reliability and safety of holding rod traction, reduces the failure rate and improves the working efficiency.
Description
Technical Field
The invention relates to an oil pumping unit based on an elastic holding rod traction technology, and belongs to the field of oil extraction technical equipment.
Background
The pumping unit is equipment for pumping crude oil at deep underground to the ground, and the structure and the principle of the traditional beam pumping unit have not been changed substantially for over a hundred years. Beam-pumping units have the disadvantages of being heavy, bulky in structure, large in volume, inconvenient to transport, install and maintain, low in efficiency and poor in safety, so that novel pumping units (such as tower-type pumping units using direct-drive technology for improving efficiency) which try to overcome the defects are continuously released, but the novel pumping units have various defects due to self and finally cannot be widely applied.
Patent ZL201520154085.9 has proposed a long stroke, novel beam-pumping unit of low frequency, nevertheless is limited to the fatigue life of haulage rope, and the haulage rope need be changed frequently to the beam-pumping unit, and because the motor will last just reversing, will constantly accelerate or decelerate, produces harmful effects to motor life-span and control. Patent zl201920337048.x has proposed an alternate sucker rod type pumping unit, and a set of sucker rod lifting and lowering mechanisms are respectively arranged on both sides of the pumping unit, and both of them work alternately and coordinately under the drive of the same set of large-torque low-rotation-speed driving mechanism, and the sucker rod is driven to lift one by one or lower one by one, which is a disadvantage that the structure is relatively complex and the sucker rod is easy to be damaged. The patent with application number CN202010290214.2 discloses a embrace pole towed beam-pumping unit, compact structure, small, light in weight, the security is high, and installation and maintenance are convenient, because this embrace pole towed beam-pumping unit embrace pole piece and sucker rod be rigid contact, under the condition that has surface unevenness on the sucker rod, embrace pole piece and sucker rod can not the close contact completely to reliability problems such as the motionless can appear skidding.
Disclosure of Invention
The invention aims to overcome the defects and provides the pumping unit based on the elastic holding rod traction technology, wherein the holding rod block and the pumping rod can be in complete and close contact, and the whole pumping unit has the advantages of simple and compact structure, small volume, high working efficiency and high reliability.
The purpose of the invention is realized as follows:
a pumping unit based on elastic holding rod traction technology comprises a pumping unit main machine, a polished rod guide pipe mechanism, a well head butt joint installation mechanism, a polished rod and a drive control system; the polished rod conduit mechanism is arranged on the top surface of the pumping unit main machine; the lower bottom surface of the pumping unit main machine is arranged on a well head butt joint installation mechanism; the polished rod penetrates through the wellhead butt joint mounting mechanism and the pumping unit main machine, and the top end of the polished rod is arranged inside the polished rod guide pipe mechanism; the drive control system is arranged beside the pumping unit host and is connected with the pumping unit host through a cable;
the oil pumping unit host comprises a box body, a permanent magnet motor, a transmission mechanism, a holding rod traction mechanism and a polished rod cleaning mechanism; the permanent magnet motor, the transmission mechanism, the holding rod traction mechanism and the polished rod cleaning mechanism are all arranged in the box body; the permanent magnet motor, the transmission mechanism and the holding rod traction mechanism are sequentially connected in a transmission manner; the polished rod cleaning mechanism is arranged below the holding rod traction mechanism;
the holding rod traction mechanism comprises two sets of left and right symmetrically arranged: the device comprises a transmission chain, a driving chain wheel, a driven chain wheel, a transmission chain frame, a chain tensioning mechanism, a pressing plate wear-resisting plate, a screw rod pressing mechanism, a pole holding block and a pole holding block elastic mechanism; the transmission chain is sleeved and connected with the driving chain wheel and the driven chain wheel; the driving chain wheel and the driven chain wheel are arranged on the transmission chain frame; the chain tensioning mechanism is arranged on the transmission chain frame and is connected with a wheel shaft of the driven chain wheel; the pressing plate is positioned on the inner side of the straight edge part of the transmission chain, a pressing plate wear-resisting plate is arranged on the outer side surface of the pressing plate, the pressing plate wear-resisting plate is in rolling contact with a roller of a chain link of the transmission chain, the inner side surface of the pressing plate is connected with the movable end of the screw pressing mechanism, and the fixed end of the screw pressing mechanism is fixedly arranged on the transmission chain frame; the holding rod blocks are arranged on the outer side edges of the transmission chain links through holding rod block elastic mechanisms, and the holding rod blocks which are symmetrical from left to right hold the polished rod and are in static friction contact with the polished rod; the elastic mechanism of the holding rod block comprises a pressure spring, a guide rod and a connecting plate, wherein two ends of the pressure spring are respectively connected with the back surface of the holding rod block and the connecting plate; the left and right symmetrical pressing plates are tightened and connected through bolts, and a left and right transmission chain link, a left and right holding rod block and a polished rod between the left and right pressing plates are clamped tightly.
The invention relates to an oil pumping unit based on an elastic holding rod traction technology, wherein an elastic mechanism of a holding rod block is replaced by an elastic gasket.
The invention relates to a pumping unit based on an elastic holding rod traction technology, wherein the contact surface of a holding rod block and a polished rod is a cylindrical surface with the same diameter as the polished rod; the material of the holding rod block is tin bronze or high manganese steel.
The invention relates to an oil pumping unit based on an elastic holding rod traction technology, wherein a transmission mechanism comprises a reduction gearbox, a reduction gearbox input shaft, a reduction gearbox output shaft and an output shaft bearing seat; the input shaft of the reduction gearbox is connected with a rotor of the permanent magnet motor, and the output shafts of the two reduction gearboxes with the same speed and different directions are respectively connected with a left driving sprocket and a right driving sprocket of the holding pole traction mechanism; the tail end of the output shaft of the reduction gearbox is arranged in a bearing seat, and the bearing seat is fixedly arranged on a transmission chain frame of the holding rod traction mechanism.
The invention relates to an oil pumping unit based on an elastic holding rod traction technology, wherein a screw pressing mechanism is replaced by a hydraulic oil cylinder.
The invention relates to an oil pumping unit based on an elastic holding rod traction technology.A polished rod guide pipe mechanism comprises a bottom flange, a buffer, a straight pipe and a sealing cover which are sequentially connected from bottom to top; the polished rod guide pipe mechanism is arranged on the top surface of the pumping unit main machine through a bottom flange; the upper part and the lower part of the straight pipe are respectively provided with a magnetic sensor, and the straight pipe is also provided with a support ring.
The invention relates to an oil pumping unit based on an elastic holding rod traction technology.A wellhead butt joint installation mechanism comprises a steel structure installation frame provided with a screw rod and a steel structure adjustment base which is slidably installed on the steel structure installation frame; the steel structure adjusting base is slidably sleeved on the threads of the screw rod.
The invention relates to an oil pumping unit based on an elastic holding rod traction technology.
When the device works, the drive control system drives the permanent magnet motor to drive the transmission mechanism to drive a driving sprocket of the holding rod traction mechanism to rotate, the transmission chain pulls the holding rod block arranged on the chain link, the pressure provided by the screw pressing mechanism reaches the holding rod block through the pressing plate, the pressing plate wear-resisting plate, the transmission chain link and the holding rod block elastic mechanism, and the holding rod block elastic mechanism enables the holding rod block to adapt to the local uneven condition of the surface of the polished rod, enables the holding rod block to press and hold the polished rod tightly and pulls the polished rod to rise through friction; the left and right symmetrical pressing plates are connected through bolts in a tightening mode, left and right transmission chain links, left and right holding rod blocks and the polished rod between the left and right pressing plates are clamped tightly, and the reliability of holding the polished rod by the holding rod blocks is further guaranteed. When the polished rod and the load thereof rise to the top, the polished rod returns downwards under the traction of the load, so as to drive the transmission chain to rotate reversely, the transmission mechanism drives the permanent magnet motor to generate power reversely, and meanwhile, the polished rod and the load thereof are damped, so that the polished rod and the load thereof stably return according to the required speed.
Compared with the prior art, the invention has the beneficial effects that:
the invention optimizes the rigid contact of the original holding rod block and the polished rod into elastic contact, so that the holding rod block can adapt to the local uneven condition of the surface of the polished rod, and the holding rod block presses and holds the polished rod tightly; the left and right symmetrical pressing plates are connected through bolts in a tightening mode, left and right transmission chain links, left and right holding rod blocks and the polished rod between the left and right pressing plates are clamped tightly, the reliability and the safety of pressing the holding rod blocks to hold the polished rod are further guaranteed, the failure rate is reduced, and the working efficiency is improved.
Drawings
Fig. 1 is a schematic diagram of the general structure of an oil pumping unit based on the elastic holding pole traction technology.
Fig. 2 is a schematic structural diagram of a pumping unit main machine of the pumping unit based on the elastic holding pole traction technology.
Fig. 3 is a schematic structural diagram of a holding pole traction mechanism of an oil pumping unit based on an elastic holding pole traction technology.
Fig. 4 is a schematic view of a holding pole block mounting structure of an oil pumping unit based on an elastic holding pole traction technology.
Fig. 5 is a schematic structural diagram of a holding pole block elastic mechanism of an oil pumping unit based on an elastic holding pole traction technology.
Fig. 6 is a schematic structural diagram of a transmission mechanism of an oil pumping unit based on an elastic holding pole traction technology.
Fig. 7 is a schematic structural diagram of a polished rod guide pipe mechanism of the oil pumping unit based on the elastic holding rod traction technology.
Fig. 8 is a schematic structural diagram of a wellhead butt joint installation mechanism of an oil pumping unit based on an elastic holding rod traction technology.
Wherein:
the device comprises a pumping unit main machine 1, a polished rod guide pipe mechanism 2, a wellhead butt joint installation mechanism 3, a polished rod 4, a drive control system 5 and a load 6;
the device comprises a box body 1.1, a permanent magnet motor 1.2, a transmission mechanism 1.3, a holding rod traction mechanism 1.4 and a polished rod cleaning mechanism 1.5;
the chain transmission mechanism comprises a transmission chain 1.4.1, a driving sprocket 1.4.2, a driven sprocket 1.4.3, a transmission chain frame 1.4.4, a chain tensioning mechanism 1.4.5, a pressing plate 1.4.6, a pressing plate wear-resisting plate 1.4.7, a screw pressing mechanism 1.4.8, a holding pole block 1.4.9, a holding pole block elastic mechanism 1.4.10 and a roller 1.4.11;
a pressure spring 101, a guide rod 102, a connecting plate 103 and a guide through hole 104;
a reduction gearbox 1.3.1, a reduction gearbox input shaft 1.3.2, a reduction gearbox output shaft 1.3.3 and an output shaft bearing seat 1.3.4;
the device comprises a bottom flange 2.1, a buffer 2.2, a straight pipe 2.3, a sealing cover 2.4, a support ring 2.5 and a magnetic sensor 2.6;
steel structure mounting bracket 3.1, steel structure adjustment base 3.2, lead screw 3.3.
Detailed Description
Referring to fig. 1-8, the pumping unit based on the elastic holding rod traction technology comprises a pumping unit main machine 1, a polished rod guide pipe mechanism 2, a wellhead butt joint installation mechanism 3, a polished rod 4 and a drive control system 5; the polished rod guide pipe mechanism 2 is arranged on the top surface of the pumping unit main machine 1; the lower bottom surface of the pumping unit main machine 1 is arranged on a well head butt joint installation mechanism 3; the polish rod 4 penetrates through the wellhead butt joint installation mechanism 3 and the pumping unit main machine 1, and the top end of the polish rod 4 is arranged inside the polish rod guide pipe mechanism 2; the drive control system 5 is arranged beside the pumping unit main machine 1 and is connected with the pumping unit main machine 1 through a cable;
the oil pumping unit main machine 1 comprises a box body 1.1, a permanent magnet motor 1.2, a transmission mechanism 1.3, a holding rod traction mechanism 1.4 and a polished rod cleaning mechanism 1.5; the permanent magnet motor 1.2, the transmission mechanism 1.3, the holding rod traction mechanism 1.4 and the polished rod cleaning mechanism 1.5 are all arranged in the box body 1.5; the permanent magnet motor 1.2, the transmission mechanism 1.3 and the holding pole traction mechanism 1.4 are sequentially connected in a transmission way; the polished rod cleaning mechanism 1.5 is arranged below the holding rod traction mechanism 1.4;
the holding rod traction mechanism 1.4 comprises two sets of left and right symmetrically arranged: the chain clamping device comprises a transmission chain 1.4.1, a driving sprocket 1.4.2, a driven sprocket 1.4.3, a transmission chain frame 1.4.4, a chain tensioning mechanism 1.4.5, a pressing plate 1.4.6, a pressing plate wear-resisting plate 1.4.7, a screw rod pressing mechanism 1.4.8, a holding pole block 1.4.9 and a holding pole block elastic mechanism 1.4.10; the transmission chain 1.4.1 is sleeved and connected with a driving chain wheel 1.4.2 and a driven chain wheel 1.4.3; the driving chain wheel 1.4.2 and the driven chain wheel 1.4.3 are arranged on the transmission chain frame 1.4.4; the chain tensioning mechanism 1.4.5 is arranged on the transmission chain frame 1.4.4, and the chain tensioning mechanism 1.4.5 is connected with a wheel shaft of the driven chain wheel 1.4.3; the pressing plate 1.4.6 is located on the inner side of the straight edge part of the transmission chain 1.4.1, the pressing plate wear-resisting plate 1.4.7 is mounted on the outer side face of the pressing plate 1.4.6, the pressing plate wear-resisting plate 1.4.7 is in rolling contact with a roller 1.4.11 of a chain link of the transmission chain 1.4.1, the inner side face of the pressing plate 1.4.6 is connected with the movable end of the screw pressing mechanism 1.4.8, and the fixed end of the screw pressing mechanism 1.4.8 is fixedly mounted on the transmission chain frame 1.4.4; the pole holding block 1.4.9 is installed on the outer side edge of the chain link of the transmission chain 1.4.1 through a pole holding block elastic mechanism 1.4.10, and the pole holding blocks 1.4.9 which are symmetrical left and right hold the polished rod 4 and are in static friction contact with the polished rod 4; the pole embracing block elastic mechanism 1.4.10 comprises a pressure spring 101, a guide rod 102 and a connecting plate 103, wherein two ends of the pressure spring 101 are respectively connected with the back of the pole embracing block 1.4.9 and the connecting plate 103, one end of the guide rod 102 is fixedly arranged on the back of the pole embracing block 1.4.9, the other end of the guide rod 102 is slidably embedded in a guide through hole 104 in the connecting plate 103, and the connecting plate 103 is fixedly arranged on the outer side edge of a chain link of the transmission chain 1.4.1; the left and right symmetrical pressing plates 1.4.6 are tightened and connected through bolts, and a left and right transmission chain 1.4.1 chain link, a left and right holding rod block 1.4.9 and a polished rod 4 between the left and right pressing plates 1.4.6 are clamped tightly.
Further, the pole holding block elastic mechanism 1.4.10 is replaced by an elastic gasket.
Further, the contact surface of the holding rod block 1.4.9 and the polish rod 4 is a cylindrical surface with the same diameter as the polish rod 4; the material of the holding rod block 1.4.9 is tin bronze or high manganese steel.
Further, the transmission mechanism 1.3 comprises a reduction gearbox 1.3.1, a reduction gearbox input shaft 1.3.2, a reduction gearbox output shaft 1.3.3 and an output shaft bearing seat 1.3.4; an input shaft 1.3.2 of the reduction gearbox is connected with a rotor of the permanent magnet motor 1.2, and two reduction gearbox output shafts 1.3.3 with the same speed and different directions are respectively connected with a left driving sprocket 1.4.2 and a right driving sprocket 1.4 of the holding pole traction mechanism 1.4; the tail end of the output shaft 1.3.3 of the reduction gearbox is arranged in the bearing seat 1.3.4, and the bearing seat 1.3.4 is fixedly arranged on a transmission chain frame 1.4.4 of the holding pole traction mechanism 1.4.
Further, the screw pressing mechanism 1.4.8 is replaced by a hydraulic cylinder.
Further, the polished rod conduit mechanism 2 comprises a bottom flange 2.1, a buffer 2.2, a straight pipe 2.3 and a sealing cover 2.4 which are sequentially connected from bottom to top; the polished rod guide pipe mechanism 2 is arranged on the top surface of the pumping unit main machine 1 through a bottom flange 2.1; the upper part and the lower part of the straight pipe 2.3 are respectively provided with a magnetic sensor 2.6, and the straight pipe 2.3 is also provided with a support ring 2.5.
Further, the wellhead butt joint installation mechanism 3 comprises a steel structure installation frame 3.1 provided with a screw rod 3.3 and a steel structure adjustment base 3.2 slidably installed on the steel structure installation frame 3.1; the steel structure adjusting base 3.2 is slidably sleeved on the thread of the screw rod 3.3.
Further, the pumping unit main machine 1 is installed above a wellhead or on a reinforced foundation at the periphery of the wellhead through a wellhead butt joint installation mechanism 3.
When the device works, the drive control system 5 drives the permanent magnet motor 1.2 to drive the transmission mechanism 1.3 to drive the driving chain wheel 1.4.2 of the holding rod traction mechanism 1.4 to rotate, the transmission chain 1.4.1 pulls the holding rod block 1.4.9 arranged on the chain link, the pressure provided by the screw pressing mechanism 1.4.8 reaches the holding rod block 1.4.9 through the pressure plate 1.4.6, the pressure plate wear-resisting plate 1.4.7, the transmission chain 1.4.1 chain link and the holding rod block elastic mechanism 1.4.10, so that the holding rod block 1.4.9 presses and holds the polished rod 4 tightly and pulls the polished rod 4 to rise through friction; the left and right symmetrical pressing plates 1.4.6 are tightened and connected through bolts, the left and right transmission chains 1.4.1 chain links, the left and right holding rod blocks 1.4.9 and the polished rod 4 between the left and right pressing plates 1.4.6 are clamped tightly, and the reliability of holding the polished rod 4 by the holding rod block 1.4.9 is further ensured. When the polished rod 4 and the load 6 of the polished rod rise to the top, the polished rod 4 returns downwards under the traction of the load 6, so that the transmission chain 1.4.1 is driven to rotate reversely, the transmission mechanism 1.3 drives the permanent magnet motor 1.2 to generate power reversely, and meanwhile, the polished rod 4 and the load 6 of the polished rod are damped, so that the polished rod 4 and the load 6 of the polished rod can return stably at the required speed.
In addition: it should be noted that the above-mentioned embodiment is only a preferred embodiment of the present patent, and any modification or improvement made by those skilled in the art based on the above-mentioned conception is within the protection scope of the present patent.
Claims (8)
1. The utility model provides a beam-pumping unit based on elasticity is embraced pole traction technique which characterized in that: the oil pumping unit based on the elastic holding rod traction technology comprises an oil pumping unit main machine (1), a polished rod guide pipe mechanism (2), a wellhead butt joint installation mechanism (3), a polished rod (4) and a drive control system (5); the polished rod conduit mechanism (2) is arranged on the top surface of the pumping unit main machine (1); the lower bottom surface of the oil pumping unit main machine (1) is arranged on a well head butt joint installation mechanism (3); the polish rod (4) penetrates through the wellhead butt joint installation mechanism (3) and the pumping unit host (1), and the top end of the polish rod (4) is arranged inside the polish rod guide pipe mechanism (2); the drive control system (5) is arranged beside the pumping unit host (1) and is connected with the pumping unit host (1) through a cable;
the oil pumping unit main machine (1) comprises a box body (1.1), a permanent magnet motor (1.2), a transmission mechanism (1.3), a holding rod traction mechanism (1.4) and a polished rod cleaning mechanism (1.5); the permanent magnet motor (1.2), the transmission mechanism (1.3), the holding rod traction mechanism (1.4) and the polished rod cleaning mechanism (1.5) are all arranged in the box body (1.5); the permanent magnet motor (1.2), the transmission mechanism (1.3) and the holding pole traction mechanism (1.4) are sequentially connected in a transmission manner; the polished rod cleaning mechanism (1.5) is arranged below the holding rod traction mechanism (1.4);
the holding rod traction mechanism (1.4) comprises two sets of left and right symmetrically arranged: the chain clamping device comprises a transmission chain (1.4.1), a driving chain wheel (1.4.2), a driven chain wheel (1.4.3), a transmission chain frame (1.4.4), a chain tensioning mechanism (1.4.5), a pressing plate (1.4.6), a pressing plate wear-resisting plate (1.4.7), a screw rod pressing mechanism (1.4.8), a holding rod block (1.4.9) and a holding rod block elastic mechanism (1.4.10); the transmission chain (1.4.1) is sleeved and connected with a driving chain wheel (1.4.2) and a driven chain wheel (1.4.3); the driving chain wheel (1.4.2) and the driven chain wheel (1.4.3) are arranged on the transmission chain frame (1.4.4); the chain tensioning mechanism (1.4.5) is arranged on the transmission chain frame (1.4.4), and the chain tensioning mechanism (1.4.5) is connected with a wheel shaft of the driven chain wheel (1.4.3); the pressing plate (1.4.6) is positioned on the inner side of the straight edge part of the transmission chain (1.4.1), a pressing plate wear-resisting plate (1.4.7) is arranged on the outer side surface of the pressing plate (1.4.6), the pressing plate wear-resisting plate (1.4.7) is in rolling contact with a roller (1.4.11) of a chain link of the transmission chain (1.4.1), the inner side surface of the pressing plate (1.4.6) is connected with the movable end of the screw rod pressing mechanism (1.4.8), and the fixed end of the screw rod pressing mechanism (1.4.8) is fixedly arranged on the transmission chain frame (1.4.4); the pole holding block (1.4.9) is installed on the outer side edge of the chain link of the transmission chain (1.4.1) through a pole holding block elastic mechanism (1.4.10), and the pole holding blocks (1.4.9) which are symmetrical left and right hold the polished rod (4) and are in static friction contact with the polished rod (4); the rod holding block elastic mechanism (1.4.10) comprises a pressure spring (101), a guide rod (102) and a connecting plate (103), two ends of the pressure spring (101) are respectively connected with the back of the rod holding block (1.4.9) and the connecting plate (103), one end of the guide rod (102) is fixedly installed on the back of the rod holding block (1.4.9), the other end of the guide rod (102) is embedded in a guide through hole (104) in the connecting plate (103) in a sliding mode, and the connecting plate (103) is fixedly installed on the outer side edge of a chain link of the transmission chain (1.4.1); the two pressure plates (1.4.6) which are symmetrical left and right are tightened and connected through bolts, and a left transmission chain (1.4.1) chain link, a left holding rod block (1.4.9), a right holding rod block (1.4.9) and a polish rod (4) between the left pressure plate and the right pressure plate (1.4.6) are clamped tightly.
2. The oil pumping unit based on the elastic holding pole traction technology as claimed in claim 1, is characterized in that: the elastic mechanism (1.4.10) of the holding rod block is replaced by an elastic gasket.
3. The oil pumping unit based on the elastic holding pole traction technology as claimed in claim 1, is characterized in that: the contact surface of the rod holding block (1.4.9) and the polish rod (4) is a cylindrical surface with the same diameter as the polish rod (4); the material of the holding rod block (1.4.9) is tin bronze or high manganese steel.
4. The oil pumping unit based on the elastic holding pole traction technology as claimed in claim 1, is characterized in that: the transmission mechanism (1.3) comprises a reduction gearbox (1.3.1), a reduction gearbox input shaft (1.3.2), a reduction gearbox output shaft (1.3.3) and an output shaft bearing seat (1.3.4); an input shaft (1.3.2) of the reduction gearbox is connected with a rotor of the permanent magnet motor (1.2), and two reduction gearbox output shafts (1.3.3) with the same speed and different directions are respectively connected with a left driving sprocket wheel (1.4.2) and a right driving sprocket wheel (1.4) of the holding pole traction mechanism (1.4); the tail end of the output shaft (1.3.3) of the reduction gearbox is arranged in the bearing seat (1.3.4), and the bearing seat (1.3.4) is fixedly arranged on a transmission chain frame (1.4.4) of the holding pole traction mechanism (1.4).
5. The oil pumping unit based on the elastic holding pole traction technology as claimed in claim 1, is characterized in that: the screw compression mechanism (1.4.8) is replaced by a hydraulic oil cylinder.
6. The oil pumping unit based on the elastic holding pole traction technology as claimed in claim 1, is characterized in that: the polish rod guide pipe mechanism (2) comprises a bottom flange (2.1), a buffer (2.2), a straight pipe (2.3) and a sealing cover (2.4) which are sequentially connected from bottom to top; the polished rod guide pipe mechanism (2) is arranged on the top surface of the pumping unit main machine (1) through a bottom flange (2.1); the upper part and the lower part of the straight pipe (2.3) are respectively provided with a magnetic sensor (2.6), and the straight pipe (2.3) is also provided with a support ring (2.5).
7. The oil pumping unit based on the elastic holding pole traction technology as claimed in claim 1, is characterized in that: the wellhead butt joint installation mechanism (3) comprises a steel structure installation frame (3.1) provided with a screw rod (3.3) and a steel structure adjusting base (3.2) installed on the steel structure installation frame (3.1) in a sliding mode; the steel structure adjusting base (3.2) is slidably sleeved on the thread of the screw rod (3.3).
8. The oil pumping unit based on the elastic holding pole traction technology as claimed in claim 1, is characterized in that: the oil pumping unit main machine (1) is installed above a wellhead or on a reinforced foundation at the periphery of the wellhead through a wellhead butt joint installation mechanism (3).
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| CN202011433537.9A CN112610190B (en) | 2020-12-10 | 2020-12-10 | Pumping unit based on elastic holding pole traction technology |
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| CN202011433537.9A CN112610190B (en) | 2020-12-10 | 2020-12-10 | Pumping unit based on elastic holding pole traction technology |
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| CN112610190B CN112610190B (en) | 2023-07-07 |
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| US3988019A (en) * | 1974-05-08 | 1976-10-26 | Windmoller & Holscher | Apparatus for depositing flat articles fed between belts |
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| CN101613032A (en) * | 2009-06-16 | 2009-12-30 | 义乌市易开盖实业公司 | A kind of method and device that utilizes synchronous band to transmit the thin slice workpiece |
| CN106044049A (en) * | 2016-06-22 | 2016-10-26 | 莫镇威 | Automatic synchronous transmission method and mechanism for pipes |
| CN106958430A (en) * | 2016-01-08 | 2017-07-18 | 于立成 | Rod beam-pumping unit well head sealing apparatus |
| CN111502600A (en) * | 2020-04-14 | 2020-08-07 | 江苏昱昌智能科技有限公司 | Holding rod traction type integrated oil pumping unit |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3988019A (en) * | 1974-05-08 | 1976-10-26 | Windmoller & Holscher | Apparatus for depositing flat articles fed between belts |
| CN2900015Y (en) * | 2006-03-31 | 2007-05-16 | 黄旭 | Hollow aluminum strip conveyer |
| CN101187302A (en) * | 2006-11-17 | 2008-05-28 | 中国石化集团胜利石油管理局运输总公司 | Annular rack type pumping machine |
| CN101613032A (en) * | 2009-06-16 | 2009-12-30 | 义乌市易开盖实业公司 | A kind of method and device that utilizes synchronous band to transmit the thin slice workpiece |
| CN106958430A (en) * | 2016-01-08 | 2017-07-18 | 于立成 | Rod beam-pumping unit well head sealing apparatus |
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| CN111502600A (en) * | 2020-04-14 | 2020-08-07 | 江苏昱昌智能科技有限公司 | Holding rod traction type integrated oil pumping unit |
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| CN112610190B (en) | 2023-07-07 |
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