CN211573486U

CN211573486U - Intelligent ultra-long stroke oil pumping machine

Info

Publication number: CN211573486U
Application number: CN201921974407.9U
Authority: CN
Inventors: 沃森·埃里克
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-11-14
Filing date: 2019-11-14
Publication date: 2020-09-25
Anticipated expiration: 2029-11-14

Abstract

The utility model relates to an intelligence overlength stroke beam-pumping unit, including automatically controlled cabinet, actuating system twines the flexible polished rod of establishing on actuating system, the counter weight system of being connected with actuating system, and the output of flexible polished rod twines and establishes on the supporting wheel and connect gradually rotatory short circuit, sucker rod, weight bar, overlength stroke pump, and the control room passes through the wireless bridge of remote data and is connected with automatically controlled cabinet in the region, and automatically controlled cabinet passes through the cable and is connected with actuating system. This patent structure is used for improving the stroke of beam-pumping unit, eliminate the contained angle that flexible polished rod and head sheave produced, extension flexible polished rod life, realize overlength stroke beam-pumping unit counter weight, further energy-conservation, can react the pump efficiency in the twinkling of an eye through automatically controlled cabinet, output, oil jacket annular space liquid level position etc. according to supplying liquid data automatically regulated oil pumping speed or intermittent type oil pumping, reach high-efficient operation, realize the long stroke, low stroke frequency, big discharge capacity, intelligent control, optimize oil recovery, the extension is changed the tubular pole and is examined the pump cycle, the purpose of long-range digital control management.

Description

Intelligent ultra-long stroke oil pumping machine

Technical Field

The utility model relates to a sucker rod pump beam-pumping unit of oil recovery system in the oil field, especially an intelligence overlength stroke beam-pumping unit.

Background

Present oil field has pole pump to pump oil equipment to have beam-pumping unit, pylon beam-pumping unit, hydraulic pumping unit, above-mentioned equipment exists common not enough to be: the stroke is small, the highest stroke does not exceed 10 meters, the stroke frequency is high, the average stroke frequency is about 6 times per minute, the stroke frequency of an individual oil pumping unit reaches 9 times per minute, the discharge capacity is low, the stroke is small and the stroke frequency is high, so that the time for oil to enter a pump is short, the fullness of an oil well pump is insufficient, the oil well pump is accompanied with impact load every time, the pump efficiency and the system efficiency are low, the abrasion of a rod, a pipe and the pump is large, the pump is frequently checked, and the maintenance and operation cost is high. Meanwhile, due to the elastic influence of the sucker rod and the limitation of small stroke, the equipment cannot be basically used for deep well oil pumping.

In view of this problem, the appearance of an ultra-long stroke pumping unit has been studied in recent years, for example, chinese patent No. 201520965060.7 discloses a utility model patent named "a long stroke pumping unit", and the technical scheme of the patent uses a winch, which can increase the stroke of the pumping unit to 50 meters, but still has the following disadvantages: the roller in this design can only rotate and cannot move along the axis. When the flexible polished rod rotates, the included angle formed by the flexible polished rod on the roller and the groove of the head sheave on the oil well wellhead support is increased, the phenomenon that the groove edge of the head sheave clamps and squeezes the surface of the flexible polished rod is increased, and the service life of the flexible polished rod is shortened. Although the size of the included angle can be reduced by lengthening the distance between the roller and the head sheave, the purpose of prolonging the service life of the flexible polished rod is achieved, but the problem of damage of the flexible polished rod cannot be thoroughly solved, so that the device is limited to be used for offshore platform oil extraction; in addition, the flexible polished rod is synthesized by metal and non-metal materials, the surface is non-metal materials, only one layer of non-metal materials can be arranged on the surface of the roller under the condition of bearing load, for example, when two or more layers are arranged, the non-metal materials on the surface of the flexible polished rod are damaged due to up-down extrusion, so that oil leakage at a wellhead packing box is caused, and the roller cannot be infinitely enlarged, so that the equipment is particularly used on a field with a small floor area and is difficult to realize a stroke of more than 50 meters; meanwhile, the long-stroke pumping unit is not provided with a counterweight mechanism, and because the counterweight cannot be realized, a motor with higher power needs to be configured, and the maximum energy-saving effect is not achieved, so that the equipment is limited to be used for deep well pumping.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the defect that prior art exists, provide an intelligence overlength stroke beam-pumping unit.

In order to realize the purpose, the utility model discloses a technical scheme as follows:

the utility model provides an intelligence overlength stroke beam-pumping unit, includes actuating system, twines the flexible polished rod of establishing on actuating system, the counter weight system of being connected with actuating system, and the output of flexible polished rod twines and establishes on the supporting wheel and connect gradually rotatory short circuit, sucker rod, weight bar, overlength stroke pump.

Further, the counter weight system includes the counter weight support, prevent the pole that falls, self-lock device, the balancing weight, the movable pulley, the fixed pulley, wire rope, the supporting pin is constituteed, counter weight support lower extreme is fixed on the base, the supporting pin movable mounting is in counter weight support both sides relevant position, prevent that the pole lower extreme that falls fixes on the base, prevent that the pole that falls passes self-lock device and balancing weight pore, the upper end is fixed on counter weight support top, self-lock device fixes at the balancing weight lower extreme, movable pulley fixed mounting is on the balancing weight, fixed pulley fixed mounting is on counter weight support top, wire rope one end is fixed on counter weight support top, walk around the movable pulley in proper order, the fixed pulley.

Further, the driving system comprises a driving system bracket, a fixed base, a limiting frame, a lower roller group, a lower roller seat, an upper roller group, an upper roller seat, a movable base, a rotation sensor, a shaft, a left support, a left gear, a counterweight roller, a steel wire rope, a rolling support, a brake gear, a movable clamping tongue, a winch roller, a right gear, a right support, a speed reduction motor, a lead screw support, a right bearing seat, a right thrust bearing, a right nut gear, a left thrust bearing, a left bearing seat, a left nut gear, a lead screw and a flexible polished rod;

the fixed base is fixed at the top end of the driving system support, the limiting frame, the lower roller group, the screw rod support are fixed on the fixed base, the lower roller seat and the upper roller group are respectively fixed at the top and the bottom of the movable base, the upper roller seat is fixedly arranged at the upper end of the limiting frame, and a plurality of sets of lower roller groups, lower roller seats, upper roller groups and upper roller seats are arranged to ensure that the movable base moves back and forth along the axis of the shaft; the roller group and the roller seat can also adopt a closed type lubricatable linear guide rail;

the left support, the rolling support, the right support and the movable clamping tongue are fixedly installed on the movable base, the rotating speed sensor is installed on a shaft, the shaft sequentially penetrates through the left support, the left gear, the counterweight roller, the rolling support, the brake gear, the winch roller, the right gear and the right support and is connected with the reducing motor, the shaft is connected with the left support, the rolling support and the right support through bearings in a rolling mode, the rotating speed sensor is installed at the left end of the shaft and rotates synchronously with the shaft, the reducing motor is fixedly installed on the right support, a motor shaft is connected with a shaft key to rotate synchronously, the left gear is fixed at the left end of the counterweight roller, the left gear and the right gear are fixed at the two ends of the winch roller respectively and rotate synchronously with the shaft.

Furthermore, a spiral semicircular groove matched with a steel wire rope is formed in the surface of the counterweight roller, the thread pitch of the groove in the surface of the counterweight roller is consistent with the diameter of the flexible polished rod, a wear-resistant elastic temperature-resistant non-metallic material is fused on the surface of the groove, one end of the steel wire rope is fixed on the counterweight roller and wound along the spiral semicircular groove, a spiral semicircular groove matched with the flexible polished rod is formed in the surface of the hoisting roller, the thread pitch of the groove in the surface of the hoisting roller is consistent with the diameter of the flexible polished rod, a wear-resistant elastic temperature-resistant non-metallic material is fused on the surface of the groove, and one end of the flexible polished rod is fixed on the hoisting;

the left gear and the left screw gear, the right gear and the right screw gear are meshed with each other in the same specification to be connected with synchronous transmission, the left screw gear and the right screw gear are installed on a lead screw with matched threads, the thread pitch of the lead screw is consistent with the diameter of a flexible polished rod, a right thrust bearing, a left thrust bearing and a left thrust bearing are installed on two sides of the screw gear, the left bearing seat and the right bearing seat are fixedly installed on the lower side surface of a movable base, the lead screw is fixedly installed on a lead screw support, and a shaft and the lead screw are installed in parallel.

Furthermore, the stroke pumping unit also comprises an electric control cabinet, the regional central control room is connected with the electric control cabinet through a remote data wireless network bridge, and the electric control cabinet is connected with the driving system through a cable.

Furthermore, one end of the flexible polished rod is fixed on the winch roller, the other end of the flexible polished rod bypasses the groove of the supporting wheel and downwards enters the oil pipe through the wellhead Christmas tree to be connected with the rotary short circuit, the rotary short circuit is connected with the upper end of the oil pumping rod, the lower end of the oil pumping rod is connected with the upper end of the weighting rod, the lower end of the weighting rod is connected with the piston, and the piston is arranged in the pump cylinder of the multi-section ultra-long stroke.

Furthermore, the electric control cabinet, the counterweight system and the driving system are all installed on the base, and the base is fixed on a concrete foundation beside the oil well. The supporting wheel is installed on the upper end of the driving system support, a semicircular groove is formed in the upper pulley of the supporting wheel, a wear-resistant elastic temperature-resistant non-metal material is fused on the surface of the groove, the flexible polished rod can be just embedded in the groove, and the pressure sensor is installed between the upper end of the driving system support and the bottom surface of the supporting wheel carrier seat.

Furthermore, a wax scraper and a centralizer are added on the sucker rod, and the sucker rod is made of metal materials or non-metal materials with high strength, tensile strength, abrasion resistance, acid and alkali resistance and temperature resistance.

Furthermore, the sucker rod selects 20 meters to 100 meters long multi-section steel wire rope for use, and the rotating force of steel wire rope when being twined and released is eliminated through rotatory short circuit between the steel wire rope.

Furthermore, the pressure sensor and the rotating speed sensor are in signal connection with the electric control cabinet.

In addition, another matching structure of the counterweight roller and the hoisting roller can be as follows: the counterweight roller and the hoisting roller are of an integrated structure, the middle part of the counterweight roller is the hoisting roller, the two side parts of the counterweight roller are the counterweight rollers, threaded grooves with the same turning direction and a semicircular shape are respectively processed on the outer surfaces of the counterweight roller and the hoisting roller, wear-resistant elastic temperature-resistant non-metallic materials are fused on the surfaces of the threaded grooves, and the thread pitch of the threaded grooves is consistent with the diameter of the flexible polished rod;

two steel wire ropes in the counterweight system are respectively fixed on counterweight rollers on two sides of the winch roller, and the rolling support is arranged between the winch roller and the counterweight roller.

The utility model has the advantages that: this patent structure is used for improving the stroke of beam-pumping unit, eliminates the contained angle that flexible polished rod and head sheave produced, and extension flexible polished rod life realizes overlength stroke beam-pumping unit counter weight, and is further energy-conserving, can react pump efficiency, output, the annular space liquid level position of oil jacket etc. in the twinkling of an eye through automatically controlled cabinet, according to supplying liquid data automatically regulated oil pumping speed or intermittent type oil pumping, reaches high-efficient operation. The purposes of long stroke, low stroke frequency, large displacement, intelligent control, optimized oil extraction, prolonged tube rod replacement and pump detection period and remote digital control management are achieved, and the operation and maintenance cost is further reduced.

Drawings

Fig. 1 is a schematic front view of embodiment 1 of the present invention;

fig. 2 is a schematic side view of embodiment 1 of the present invention;

fig. 3 is a schematic structural diagram of a driving system according to embodiment 1 of the present invention;

fig. 4 is a schematic structural view of a counterweight system according to embodiment 1 of the present invention;

fig. 5 is a schematic view of the matching between the counterweight drum and the winding drum in embodiment 2 of the present invention.

Detailed Description

The present application is further described with reference to the following figures and specific examples:

example 1

As shown in fig. 1 to 4, an intelligent ultra-long stroke pumping unit comprises a driving system 3, a flexible polished rod 4 wound on the driving system, and a counterweight system connected with the driving system 3, wherein an output end of the flexible polished rod is wound on a support wheel and is sequentially connected with a rotary short circuit 7, a sucker rod 8, a weighting rod 9 and an ultra-long stroke pump 10.

The counterweight system 2 comprises a counterweight support 11, a falling-prevention rod 12, a self-locking device 13, a counterweight block 14, a movable pulley 15, a fixed pulley 16, a steel wire rope 17 and a supporting pin 18, wherein the lower end of the counterweight support 11 is fixed on the base, the supporting pin 18 is movably installed at corresponding positions on two sides of the counterweight support 11, the lower end of the falling-prevention rod 12 is fixed on the base, the falling-prevention rod 12 penetrates through the self-locking device 13 and a pore passage of the counterweight block 14, the upper end of the falling-prevention rod is fixed at the top end of the counterweight support 11, the self-locking device 13 is fixed at the lower end of the counterweight block 14, the movable pulley 15 is fixedly installed on the counterweight block 14, the fixed pulley 16 is fixedly installed at the top end of the counterweight support 11, one end of the. At least two sets of anti-falling rods 12, self-locking devices 13 and two sets of fixed and movable pulley blocks.

The driving system 3 comprises a driving system bracket 19, a fixed base 20, a limiting frame 21, a lower roller group 22, a lower roller seat 23, an upper roller group 24, an upper roller seat 25, a movable base 26, a rotation sensor 27, a shaft 28, a left support 29, a left gear 30, a counterweight roller 31, a steel wire rope 17, a rolling support 32, a brake gear 33, a movable clamping tongue 34, a winch roller 35, a right gear 36, a right support 37, a speed reducing motor 38, a lead screw support 39, a right bearing seat 40, a right heart thrust bearing 41, a right nut gear 42, a left heart thrust bearing 43, a left bearing seat 44, a left nut gear 45, a lead screw 46 and a flexible polished rod 4;

the fixed base 20 is fixed at the top end of the driving system support 19, the limiting frame 21, the lower roller group 22, the screw rod support 39 are fixed on the fixed base 20, the lower roller seat 23 and the upper roller group 24 are respectively fixed at the top and the bottom of the movable base 26, the upper roller seat 25 is fixedly arranged at the upper end of the limiting frame 21, and a plurality of sets of the lower roller group 22, the lower roller seat 23, the upper roller group 24 and the upper roller seat 25 are arranged to ensure that the movable base 26 moves back and forth along the axis of the shaft 28; the roller group and the roller seat can also adopt a closed type lubricatable linear guide rail.

The left support 29, the rolling support 32, the right support 37 and the movable clamping tongue 34 are fixedly installed on the movable base 26, the rotating speed sensor 27 is installed on the shaft 28, the shaft 28 sequentially penetrates through the left support 29, the left gear 30, the counterweight roller 31, the rolling support 32, the brake gear 33, the hoisting roller 35, the right gear 36 and the right support 37 to be connected with the speed reducing motor 38, the shaft 28 is connected with the left support 29, the rolling support 32 and the right support 37 in a rolling mode through bearings, the rotating speed sensor 27 is installed at the left end of the shaft 28 to synchronously rotate with the shaft 28, the speed reducing motor 38 is fixedly installed on the right support 37, a motor shaft is in key connection with the shaft 28 to synchronously rotate, the left gear 30 is fixed at the left end of the counterweight roller 31, the left gear 30 and the right gear are fixedly connected with the shaft 28 to synchronously rotate, and the brake gear 33 and the.

The surface of the counterweight roller 31 is provided with a spiral semicircular groove matched with the steel wire rope 17, the thread pitch of the groove on the surface of the counterweight roller 31 is consistent with the diameter of the flexible polished rod, the surface of the groove is fused with a wear-resistant elastic temperature-resistant non-metallic material, one end of the steel wire rope 17 is fixed on the counterweight roller 31 and is wound along the spiral semicircular groove, the surface of the winding roller 35 is provided with a spiral semicircular groove matched with the flexible polished rod 4, the thread pitch of the groove on the surface of the winding roller 35 is consistent with the diameter of the flexible polished rod, the surface of the groove is fused with a wear-resistant elastic temperature-resistant non-metallic material, and one end of the flexible polished rod 4 is fixed on the;

the left gear 30, the left nut gear 45, the right gear 36 and the right nut gear 42 are meshed and connected with each other in the same specification for synchronous transmission, the left nut gear 45 and the right nut gear 42 are installed on a lead screw 46 with matched threads, the thread pitch of the lead screw is consistent with the diameter of a flexible polished rod, a right thrust bearing 41, a right bearing seat 40, a left thrust bearing 43 and a left bearing seat 44 are installed on two sides of the nut gear, the left bearing seat and the right bearing seat are fixedly installed on the lower side face of the movable base, the lead screw 46 is fixedly installed on a lead screw support 39, and the shaft 28 and the lead screw 46 are installed in parallel.

In addition, long stroke beam-pumping unit still includes automatically controlled cabinet 1, and the control room passes through the remote data wireless network bridge and is connected with automatically controlled cabinet 1 in the region, and automatically controlled cabinet 1 passes through the cable and is connected with

actuating system

3, 4 one ends of flexible polished rod are fixed on hoist cylinder 35, and the other end is walked around supporting wheel 5 recess and is gone into in the oil pipe through well head production tree downwards and be connected with rotatory short circuit 7, and rotatory short circuit 7 is connected with 8 upper ends of sucker rod, and 8 lower extremes of sucker rod are connected with the upper end of weight rod 9, and the lower extreme of weight rod 9 is connected with the piston, and the piston is arranged in multisection.

The electric control cabinet 1, the counterweight system 2 and the driving system 3 are all installed on the base, and the base is fixed on a concrete foundation beside an oil well. In addition, the supporting wheel 5 is arranged at the upper end of the driving system support, a semicircular groove is processed on the upper pulley of the supporting wheel 5, a wear-resistant elastic temperature-resistant non-metallic material is fused on the surface of the groove, the flexible polished rod 4 can be just embedded in the groove, and the pressure sensor 6 is arranged between the upper end of the driving system support 19 and the bottom surface of the support seat of the supporting wheel 5.

The utility model discloses in, 20 meters to 100 meters long degree multistage wire rope is chooseed for use to the sucker rod, eliminates the revolving force that wire rope produced when being twined and release through rotatory short circuit between the wire rope.

When the pumping unit of the utility model works and the piston of the ultra-long stroke pump 10 moves upwards, the electric control cabinet 1 gives a signal to the planetary gear motor 38, the motor drives the left gear 30, the counterweight roller 31, the hoisting roller 35, the right gear 36 and the speed sensor 27 to synchronously rotate, the flexible polished rod 4 moves upwards and winds in the groove of the hoisting roller 35, the steel wire rope 17 releases the balancing weight 14 to move downwards from the groove of the counterweight roller 31, the left gear 30 and the right gear 36 respectively drive the left nut gear 45 and the right nut gear 42 to synchronously rotate, the hoisting roller 35 rotates a circle of nut gear just and then rotates a circle, the nut gear pushes the radial thrust bearing and then pushes the bearing seat, the bearing seat drives the movable base 26 and the hoisting roller 35, the speed motor 38 and other components on the movable base to just move the width of the diameter of the flexible polished rod 4 in the axial direction of the lead screw 46, when the piston of, the speed reducing motor 38 drives the left gear 30, the counterweight roller 31, the hoisting roller 35, the right gear 36 and the rotation speed sensor 27 to synchronously and reversely rotate, and the actions above are reversely repeated, so that the positions of the flexible polished rod 4 entering and exiting the rollers are always kept unchanged, and the damage caused by the included angle formed by the flexible polished rod 4 and the groove of the supporting wheel 5 is avoided.

In addition, after the electric control cabinet 1 transmits a signal to the speed reducing motor 38 through a cable, the speed reducing motor 38 drives the hoisting roller 35 and the counterweight roller 31 to rotate, the hoisting roller 35 pulls the flexible polished rod 4, the flexible polished rod 4 is gradually wound on the hoisting roller 35, the flexible polished rod 4 drives the sucker rod 8, the weighting rod 9 and the piston to move upwards, oil on the upper part of the piston is lifted out, the counterweight roller 31 synchronously rotating with the hoisting roller 35 gradually releases the steel wire rope 17 connected with the counterweight block 14 in the counterweight system 2 in a rolling manner, the counterweight block 14 moves downwards, counterweight tension is transmitted to act on the counterweight roller 31 and the hoisting roller 35 through the steel wire rope 17, the direction of the tension is opposite to that of the flexible polished rod 4 acting on the hoisting roller 35, and the power of the. The speed reducing motor 38 rotates reversely, the flexible polished rod 4 is released, the piston moves downwards, the counterweight drum 31 winds the steel wire rope 17, and the counterweight block 14 moves upwards. When the speed reducing motor 38 drives the winding drum 35 and the counterweight drum 31 to rotate for one circle, the speed reducing motor 38, the winding drum 35, the counterweight drum 31 and the movable base move together along the axis direction by the diameter of one flexible polished rod 4, so that the position of the flexible polished rod released by the winding drum 35 is always kept unchanged. The rotating speed sensor 27 is fixedly arranged at one end of the shaft 28, the pressure sensor 6 and the data collected by the rotating speed sensor 27 are transmitted to the electric control cabinet 1, and the electric control cabinet 1 is provided for controlling the rotating speed of the speed reducing motor 38 according to various data indexes.

Example 2

As shown in fig. 5, the difference between this embodiment and embodiment 1 is that the counterweight roller 31 and the hoisting roller 35 are integrated, the middle part is the hoisting roller 35, the two side parts are the counterweight rollers 31, the outer surfaces of the counterweight roller 31 and the hoisting roller 35 are both processed with threaded grooves with the same turning direction and semicircular shapes, the surfaces of the threaded grooves are fused with wear-resistant elastic temperature-resistant non-metallic materials, and the thread pitch of the threaded grooves is consistent with the diameter of the flexible polished rod 4. Two steel wire ropes in the counterweight system are respectively fixed on the counterweight rollers 31 on two sides of the hoisting roller 35, and the rolling bracket 32 is arranged between the hoisting roller 35 and the counterweight rollers 31, so that the hoisting tension and the counterweight tension are balanced.

This patent structure is used for improving the stroke of beam-pumping unit, eliminates the contained angle that flexible polished rod and head sheave produced, and extension flexible polished rod life realizes overlength stroke beam-pumping unit counter weight, and is further energy-conserving, can react pump efficiency, output, the annular space liquid level position of oil jacket etc. in the twinkling of an eye through automatically controlled cabinet, according to supplying liquid data automatically regulated oil pumping speed or intermittent type oil pumping, reaches high-efficient operation. The purposes of long stroke, low stroke frequency, large displacement, intelligent control, optimized oil extraction, prolonged tube rod replacement and pump detection period and remote digital control management are achieved, and the operation and maintenance cost is further reduced. The oil extraction of deep wells, ultra-deep wells and offshore sucker-rod pumps is realized.

The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the principles of the present invention may be applied to any other embodiment without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides an intelligence overlength stroke beam-pumping unit, its characterized in that includes actuating system, twines the flexible polished rod of establishing on actuating system, the counter weight system of being connected with actuating system, and the output of flexible polished rod twines and establishes on the supporting wheel and connect gradually rotatory short circuit, sucker rod, weight bar, overlength stroke pump.

2. The intelligent ultra-long stroke pumping unit as claimed in claim 1, wherein the counterweight system comprises a counterweight support, a falling-prevention rod, a self-locking device, a counterweight block, a movable pulley, a fixed pulley, a steel wire rope and a support pin, wherein the lower end of the counterweight support is fixed on the base, the support pin is movably mounted at corresponding positions on two sides of the counterweight support, the lower end of the falling-prevention rod is fixed on the base, the falling-prevention rod passes through a pore passage of the self-locking device and the counterweight block, the upper end of the falling-prevention rod is fixed at the top end of the counterweight support, the self-locking device is fixed at the lower end of the counterweight block, the movable pulley is fixedly mounted on the counterweight block, the fixed pulley is fixedly mounted at the top end of the counterweight support.

3. The intelligent ultra-long stroke pumping unit according to claim 2, wherein the driving system comprises a driving system bracket, a fixed base, a limiting frame, a lower roller set, a lower roller seat, an upper roller set, an upper roller seat, a movable base, a rotation sensor, a shaft, a left support, a left gear, a counterweight roller, a steel wire rope, a rolling support, a brake gear, a movable clamping tongue, a winch roller, a right gear, a right support, a speed reducing motor, a screw rod support, a right bearing seat, a right thrust bearing, a right nut gear, a left thrust bearing, a left bearing seat, a left nut gear, a screw rod and a flexible polished rod;

the fixed base is fixed at the top end of the driving system support, the limiting frame, the lower roller group, the screw rod support are fixed on the fixed base, the lower roller seat and the upper roller group are respectively fixed at the top and the bottom of the movable base, the upper roller seat is fixedly arranged at the upper end of the limiting frame, a plurality of sets of lower roller groups, lower roller seats, upper roller groups and upper roller seats are arranged to ensure that the movable base moves back and forth along the axis of a shaft, and the roller groups and the roller seats adopt closed type lubricated linear guide rails;

4. The intelligent ultra-long stroke pumping unit as claimed in claim 3, wherein the counterweight drum has a spiral semicircular groove formed on its surface to match with the wire rope, the pitch of the groove on the counterweight drum has a diameter consistent with that of the flexible polish rod, the surface of the groove is fused with a wear-resistant, elastic and temperature-resistant non-metallic material, one end of the wire rope is fixed on the counterweight drum and wound along the spiral semicircular groove, the surface of the hoisting drum has a spiral semicircular groove formed thereon to match with the flexible polish rod, the pitch of the groove on the hoisting drum has a diameter consistent with that of the flexible polish rod, the surface of the groove is fused with a wear-resistant, elastic and temperature-resistant non-metallic material, one end of the flexible polish rod is fixed on the hoisting drum and wound along the spiral;

the left gear and the left screw gear, the right gear and the right screw gear are all meshed and connected with synchronous transmission, the left screw gear and the right screw gear are installed on a lead screw with matched threads, the thread pitch of the lead screw is consistent with the diameter of a flexible polished rod, a right thrust bearing, a right bearing seat, a left thrust bearing and a left bearing seat are installed on two sides of the screw gear, the left bearing seat and the right bearing seat are fixedly installed on the lower side surface of a movable base, the lead screw is fixedly installed on a lead screw support, and a shaft and the lead screw are installed in parallel.

5. The intelligent ultra-long stroke pumping unit of claim 4, further comprising an electric control cabinet, wherein the regional central control room is connected with the electric control cabinet through a remote data wireless network bridge, and the electric control cabinet is connected with the driving system through a cable.

6. The intelligent ultra-long stroke pumping unit as claimed in claim 4, wherein one end of the flexible polished rod is fixed on the hoisting roller, the other end of the flexible polished rod bypasses the groove of the supporting wheel and goes downward to enter the oil pipe through the wellhead Christmas tree to be connected with the rotary short circuit, the rotary short circuit is connected with the upper end of the pumping rod, the lower end of the pumping rod is connected with the upper end of the weighting rod, the lower end of the weighting rod is connected with the piston, and the piston is arranged in the pump cylinder of the multi-section ultra-long stroke pump.

7. The intelligent ultra-long stroke pumping unit as claimed in claim 5, wherein the electric control cabinet, the counterweight system and the driving system are all mounted on a base, the base is fixed on a concrete foundation beside the oil well, the supporting wheel is mounted at the upper end of a bracket of the driving system, a semicircular groove is processed on the upper pulley of the supporting wheel, wear-resistant, elastic and temperature-resistant non-metallic materials are fused on the surface of the groove, the flexible polished rod is embedded in the groove, and the pressure sensor is mounted between the upper end of the bracket of the driving system and the bottom surface of the bracket of the supporting wheel carrier.

8. The intelligent ultra-long stroke pumping unit of claim 4, wherein the sucker rod is provided with a wax scraper and a centralizer, and the sucker rod is made of metal materials or non-metal materials with high strength, tensile strength, abrasion resistance, acid and alkali resistance and temperature resistance.

9. The intelligent ultra-long stroke pumping unit as claimed in claim 8, wherein the pumping unit is selected from multi-section steel wire ropes with the length of 20-100 meters, and the rotating force generated when the steel wire ropes are wound and released is eliminated through the rotating short circuit between the steel wire ropes.

10. The intelligent ultra-long stroke pumping unit as claimed in claim 7, wherein the pressure sensor and the rotation speed sensor are in signal connection with an electric control cabinet;

the counterweight roller and the hoisting roller are of an integral structure, the middle part of the counterweight roller is the hoisting roller, the two side parts of the counterweight roller are the counterweight rollers, threaded grooves with the same turning direction and a semicircular shape are formed in the outer surfaces of the counterweight roller and the hoisting roller, wear-resistant elastic temperature-resistant non-metallic materials are fused on the surfaces of the threaded grooves, and the thread pitch of the threaded grooves is consistent with the diameter of the flexible polished rod;