CN116480323A

CN116480323A - Stepless speed regulating intelligent hydraulic pumping unit

Info

Publication number: CN116480323A
Application number: CN202310494772.4A
Authority: CN
Inventors: 李奇伟; 陈永鑫
Original assignee: Dongying Haochen Petroleum Technology Development Co ltd
Current assignee: Dongying Haochen Petroleum Technology Development Co ltd
Priority date: 2023-05-05
Filing date: 2023-05-05
Publication date: 2023-07-25

Abstract

The invention discloses an intelligent hydraulic pumping unit with stepless speed regulation. The utility model provides an electrodeless speed regulation intelligence hydraulic pumping unit, including the base, the base rigid coupling has the support frame, the support frame rotates and is connected with the belt pulley, the support frame is provided with the T groove, sliding connection has T shape piece in the T groove of support frame, the T shape piece is connected with first band pulley through the bracing piece rotation, the base rigid coupling has first hydraulic push rod, first hydraulic push rod is connected with the second band pulley through the bracing piece rotation, around being equipped with driving belt between first band pulley and the second band pulley, driving belt's one end and support frame rigid coupling, other end rigid coupling rope hanger, the rope hanger rigid coupling has the polished rod, the polished rod rigid coupling has the sucker rod. According to the invention, the abrasion condition of the driving belt is detected by detecting the pressure of the driving belt on the pressure sensor in real time, and the position of the first belt wheel is intelligently and automatically adjusted, so that the position of the driving belt is adjusted, and the abrasion of the polished rod and the wellhead is avoided, so that the sealability between the polished rod and the wellhead is reduced.

Description

Stepless speed regulating intelligent hydraulic pumping unit

Technical Field

The invention relates to the technical field of petroleum exploitation, in particular to an intelligent hydraulic pumping unit with stepless speed regulation.

Background

In the process of petroleum exploitation, oil is pumped from an oil well by using a pumping unit, the types of the existing pumping unit include a beam pumping unit, a belt pumping unit, a hydraulic pumping unit and the like, and the hydraulic pumping unit adopts gravity symmetrical balance and is directly commutated through a hydraulic system and a pulley block, so that the hydraulic pumping unit is widely applied to various oil wells.

The stepless speed regulation hydraulic pumping unit is matched with a driving device (a hydraulic station, a hydraulic motor and a speed reducer) through an intelligent control module, so that automatic stepless speed regulation of the pumping unit is realized, and the stepless speed regulation hydraulic pumping unit is widely applied to oil fields at present; for example, chinese patent CN111810089a discloses an automatic stepless speed regulation vertical pumping unit and an automatic stepless speed regulation control method for the pumping unit, which comprises a tower, a sprocket, a reel, a crown block, a connecting rope, a connecting chain, a pumping rope, a rope hanger, a first rope chain connector, a second rope chain connector, an intelligent control module and a driving device, wherein the intelligent control module is matched with the driving device to realize automatic stepless speed regulation for the pumping unit.

The hydraulic pumping unit is mainly powered by the belt and the belt pulley, the belt and the belt pulley are rubbed for a long time in the petroleum extraction process, the belt is worn, the thickness is thinned after the belt is worn, one end of the belt is connected with the pumping rod through the polished rod, the belt is thinned to change the pulling direction of the belt to the polished rod, namely, the polished rod cannot be ensured to vertically upwards, so that the extrusion force of the polished rod to a wellhead is increased, the polished rod and the wellhead are rubbed, the tightness between the polished rod and the wellhead is reduced due to long-term friction of the polished rod and the wellhead, and petroleum leakage is caused.

Disclosure of Invention

In order to solve the problems of the background technology, the invention provides an automatic correction stepless speed regulation intelligent hydraulic pumping unit.

The technical proposal is as follows: the utility model provides an electrodeless speed regulation intelligence hydraulic pumping unit, including the base, the base rigid coupling has the support frame, the support frame rotates and is connected with the belt pulley, the support frame is provided with the T-shaped groove, sliding connection has T shape piece in the T-shaped groove of support frame, the T shape piece is connected with first belt pulley through the bracing piece rotation, the base rigid coupling has first hydraulic push rod, the base rigid coupling has control terminal, first hydraulic push rod is connected with control terminal electricity, the flexible end of first hydraulic push rod is connected with the second belt pulley through the bracing piece rotation, partial belt pulley is around being equipped with balanced belt, balanced belt's one end and support frame rigid coupling, the other end rigid coupling has the weight box, another part belt pulley, around being equipped with driving belt between first belt pulley and the second belt pulley, driving belt's one end and support frame rigid coupling, driving belt's the other end rigid coupling rope hanger, rope hanger rigid coupling has the polished rod, the polished rod rigid coupling has the sucker rod, the downside of polished rod is provided with oil pipe, sliding connection has the plunger with the sucker rod rigid coupling in the oil pipe, be provided with the floating valve in the plunger, the rigid coupling has the fixed casing that is located the plunger downside in the fixed casing, the support frame rigid coupling has the second hydraulic push rod with the electrical connection with control terminal, the second belt pulley is connected with the hydraulic push rod, the second belt with the end of T shape piece is used for detecting the flexible end and the position of T shape piece, the first belt drive belt wear-down, the wear and tear the first belt is adjusted, the position is fixed with the driving belt, the damaged belt has the position is fixed belt, and has the wear and has.

Preferably, the detection mechanism comprises a connecting rod fixedly connected to the base, a first connecting plate is fixedly connected between one side, far away from the base, of the connecting rod and the support frame, a first fixing plate is fixedly connected to the first connecting plate, a Y-shaped rod is slidably connected to the first fixing plate, an elastic component is arranged between the first fixing plate and the Y-shaped rod, a roller which is slidably connected with a driving belt is rotatably connected to the Y-shaped rod, a pressure sensor which is electrically connected with a control terminal is fixedly connected to the first connecting plate through a support rod, one end, far away from the roller, of the Y-shaped rod is matched with the pressure sensor, and the rope hanger is provided with an anti-falling component used for preventing the rope hanger from falling down.

Preferably, the anti-falling component comprises a second fixing plate, the second fixing plate is fixedly connected to the rope hanger, the second fixing plate is in sliding connection with a connecting rod, a ring is fixedly connected to the second fixing plate, a second connecting plate is fixedly connected between one side of the connecting rod, which is close to the base, and the supporting frame, a sliding rod is fixedly connected between the first connecting plate and the second connecting plate, a circumferential rectangular plate which is symmetrically distributed is fixedly connected between the first connecting plate and the second connecting plate, a row of U-shaped limiting plates are fixedly connected between the symmetrically distributed rectangular plates, a sliding frame is fixedly connected with a sliding frame, the sliding frame is rotationally connected with a roller which is symmetrically distributed, a row of round table blocks are fixedly connected to the sliding rod, the outer side surface of the round table blocks is matched with the roller which is far away from the rectangular plate, the inner diameter of the round ring is gradually reduced from top to bottom, a trigger component and a pressure buffer component are arranged on the inner side surface of the round ring, and the sliding rod is used for detecting whether a driving belt is broken or not, and the pressure buffer component is used for slowing down the speed of downward movement of the round table.

Preferably, the trigger assembly comprises a T-shaped plate, the T-shaped plate is fixedly connected to one end of the sliding rod, which is close to the first connecting plate, a U-shaped rod which is in sliding connection with the support frame is fixedly connected to the T-shaped plate, a tension spring is fixedly connected between the U-shaped rod and the support frame, and a support wheel which is matched with the driving belt is rotationally connected to the U-shaped rod.

Preferably, the pressure buffer component comprises a U-shaped frame fixedly connected to a base, the U-shaped frame is rotationally connected with a rotating shaft, the rotating shaft is fixedly connected with a straight gear and a unidirectional gear, a first rack meshed with the unidirectional gear is fixedly connected to a slide bar, a fixed sleeve is fixedly connected to the base, a limiting rod is slidably connected to the fixed sleeve, a second rack meshed with the straight gear is fixedly connected to the limiting rod, a pressurizing component is arranged on the fixed sleeve and used for increasing resistance when the limiting rod moves downwards.

Preferably, the pressurizing assembly comprises a pushing disc fixedly connected to the limiting rod, the pushing disc is located in the fixed sleeve and is in sliding connection with the fixed sleeve, the pushing disc is fixedly connected with a sealing ring, the pushing disc divides the lower portion in the fixed sleeve into a first cavity and a second cavity, a third cavity is formed in the fixed sleeve, air is filled in the first cavity, liquid is filled in the second cavity and the third cavity, an air pressure sensor located in the first cavity is fixedly connected in the fixed sleeve, the air pressure sensor in the first cavity is electrically connected with the control terminal, an air vent communicated with the third cavity is formed in the fixed sleeve, through holes communicated with the second cavity and the third cavity are formed in the fixed sleeve, and a one-way valve is arranged in the through holes of the fixed sleeve.

Preferably, the fixed sleeve is in threaded connection with a plugging rod, a pressure relief hole communicated with the second cavity and the third cavity is formed in the fixed sleeve, and the plugging rod is in sealing fit with the pressure relief hole of the fixed sleeve.

Preferably, the emergency locking mechanism is arranged on the connecting rod and used for preventing the ring from falling, the emergency locking mechanism comprises a driving switch fixedly connected to the connecting rod, the driving switch is electrically connected with the control terminal, the driving switch is matched with the second fixing plate, the supporting frame is fixedly connected with an electromagnetic push rod electrically connected with the control terminal, the telescopic end of the electromagnetic push rod is provided with a symmetrically distributed push plate, the push plate on the upper side is slidably connected with the telescopic end of the electromagnetic push rod, the push plate on the lower side is fixedly connected with the telescopic end of the electromagnetic push rod, the push plate on the upper side is matched with the T-shaped plate, a first spring is fixedly connected between the symmetrically distributed push plates, the elastic coefficient of the first spring is larger than that of the tension spring, the second connecting plate is slidably connected with a symmetrically distributed inserted link, a baffle ring is fixedly connected with the ring, the baffle ring is matched with the second connecting plate, and the interval between adjacent round table blocks on the lower side of the driving switch is gradually reduced from top to bottom.

Preferably, the paraffin removal device further comprises symmetrically distributed paraffin removal mechanisms, the symmetrically distributed paraffin removal mechanisms are arranged on the plungers, the paraffin removal mechanisms are used for removing paraffin attached to the inner walls of the oil pipes, the paraffin removal mechanisms comprise push rings, the push rings are fixedly connected to the plungers, the push rings are slidably connected with first arc rings, elastic pieces are fixedly connected between the first arc rings and the plungers, the push rings are slidably connected with second arc rings, the first arc rings and the second arc rings are fixedly connected with first arc plates and second arc plates which are distributed at equal intervals in the circumferential direction, the push rings, the first arc rings, the second arc rings, the first arc plates and the second arc plates are matched to form an oil storage cavity, arc surfaces are arranged on the first arc plates and the second arc plates, the distance between one side, away from the plungers, of the first arc plates and the plungers is larger than the distance between one side, away from the plungers, of the second arc plates and the plungers, the first arc plates and the second arc plates which are distributed at equal intervals in the circumferential direction are distributed in a staggered mode are arranged, three-way holes which are communicated with the oil storage cavity are formed in the first arc plates, and the push rings are provided with driving components which are used for rotating the first arc rings.

Preferably, the driving assembly comprises limiting balls which are distributed at equal intervals, the limiting balls which are distributed at equal intervals are fixedly connected to the push ring, the first arc-shaped ring is provided with inclined sliding grooves which are distributed at equal intervals, and the limiting balls are in sliding connection with the adjacent inclined sliding grooves.

The invention has the following advantages:

1. through the wearing and tearing condition of real-time detection driving belt to carry out intelligent automatically regulated to the position of first band pulley, realize automatic correction, with this position of adjusting driving belt, avoided polished rod and well head to take place wearing and tearing, lead to the leakproofness between the two to reduce, lead to oil to reveal between oil pipe and the well head.

2. The down-moving speed of the sucker rod is buffered through air pressure, the resistance to the sucker rod is gradually increased, the sucker rod is finally stopped, the rope hanger and the polished rod are prevented from directly falling down, the rope hanger collides with a wellhead, and the wellhead or the rope hanger is damaged.

3. Buffering is carried out to the sucker rod of falling through the cooperation of atmospheric pressure and mechanical part and in time stops the sucker rod, and carries out intellectual detection system when the part ages, forces to start the anti-falling part through driving switch to cooperate the baffle ring to buffer and intercept the sucker rod, the dual mode cooperation reduces the risk of falling of sucker rod.

4. When the plunger draws oil, paraffin is scraped progressively according to the adhesion of the paraffin on the inner wall of the oil pipe, so that the plunger is prevented from being stopped due to excessive paraffin accumulation.

Drawings

Fig. 1 is a schematic perspective view of the present invention.

Fig. 2 is a schematic perspective view of a detection mechanism according to the present invention.

Fig. 3 is a schematic perspective view of the emergency locking mechanism of the present invention.

Fig. 4 is a schematic perspective view of the fall arrest device according to the present invention.

Fig. 5 is a schematic perspective view of a pressure buffering assembly according to the present invention.

Fig. 6 is a schematic perspective view of the fixing sleeve and the plugging rod.

FIG. 7 is a schematic perspective view of a wax removal mechanism according to the present invention.

Fig. 8 is a schematic perspective view of a driving assembly according to the present invention.

Fig. 9 is a schematic perspective view of the first arcuate ring and the stop ball of the present invention.

In the reference numerals: 1-base, 101-oil pipe, 2-support frame, 3-pulley, 4-T block, 5-first pulley, 6-first hydraulic ram, 7-control terminal, 8-second pulley, 9-balance belt, 10-weight box, 11-drive belt, 12-rope hanger, 13-polish rod, 1301-sucker rod, 14-plunger, 15-fixed housing, 1601-connecting rod, 1602-first connecting plate, 1603-first fixing plate, 1604-Y rod, 1605-roller, 1606-pressure sensor, 1607-second hydraulic ram, 1701-second fixing plate, 1702-ring, 1703-second connecting plate, 1704-slide bar, 1705-rectangular plate, 1706-U-shaped limiting plate, 1707-slide frame, 1708-roller, 1709-round bench, 1801-T plate, 1802-U-shaped rod, 1803-tension spring, 1804-supporting wheel, 1901-U-shaped frame, 1902-spindle, 1903-spur gear, 1904-unidirectional gear, 1905-first rack, 1906-fixed sleeve, 19061-first cavity, 19062-second cavity, 19063-third cavity, 19064-vent hole, 1907-stop lever, 1908-second rack, 1909-push plate, 1910-unidirectional valve, 1911-blocking lever, 2001-driving switch, 2002-electromagnetic push rod, 2003-push plate, 20031-first spring, 2004-insert rod, 2005-retainer ring, 2006-second spring, 2101-push ring, 2102-first arc ring, 2103-elastic member, 2104-second arc-shaped ring, 2105-first arc-shaped plate, 2106-second arc-shaped plate, 2107-limit ball.

Detailed Description

The invention is described in detail below with reference to the drawings and the specific embodiments.

Example 1

The stepless speed regulating intelligent hydraulic pumping unit comprises a base 1, a support frame 2 is fixedly connected to the upper part of the base 1, five belt pulleys 3 are rotatably connected to the support frame 2, a T-shaped groove is arranged on the left side of the upper part of the support frame 2, a T-shaped block 4 is slidably connected in the T-shaped groove of the support frame 2, a first belt pulley 5 is rotatably connected to the left side of the T-shaped block 4 through a support rod, a first hydraulic push rod 6 is fixedly connected to the middle part of the base 1, a control terminal 7 positioned on the left side of the first hydraulic push rod 6 is fixedly connected to the base 1, the first hydraulic push rod 6 is electrically connected with the control terminal 7, a second belt pulley 8 is rotatably connected to the telescopic end of the first hydraulic push rod 6 through a support rod, a balance belt 9 is wound on the three belt pulleys 3 on the right side, a balance belt 9 is fixedly connected to the support frame 2 at the left end, a weight box 10 is fixedly connected to the right end of the balance belt pulley 3, a driving belt 11 is wound between the first belt pulley 5 and the second belt pulley 8 on the left side, the right end of the driving belt 11 is fixedly connected with the supporting frame 2, the left end of the driving belt is fixedly connected with the rope hanger 12, the lower side of the rope hanger 12 is fixedly connected with the polished rod 13, the polished rod 13 is in sliding connection with the wellhead, the lower end of the polished rod 13 is fixedly connected with the sucker rod 1301, the lower side of the polished rod 13 is provided with the oil pipe 101, the oil pipe 101 is placed in a sleeve of an oil well, the sliding connection of the oil pipe 101 is provided with the plunger 14 fixedly connected with the sucker rod 1301, the plunger 14 is internally provided with a movable valve, the oil pipe 101 is fixedly connected with the fixed shell 15 positioned at the lower side of the plunger 14, the fixed shell 15 is internally provided with the fixed valve, the left side of the upper part of the supporting frame 2 is fixedly connected with the second hydraulic push rod 1607 which is electrically connected with the control terminal 7, the telescopic end of the second hydraulic push rod 1607 is fixedly connected with the T-shaped block 4, the base 1 is provided with a detection mechanism for detecting the damage degree of the driving belt 11, and after the driving belt 11 is worn, the second hydraulic push rod 1607 drives the first belt pulley 5 to move leftwards through the fixedly connected T-shaped block 4 and the supporting rod, and the position of the driving belt 11 is adjusted, so that the leak of petroleum from between the oil pipe 101 and the wellhead due to the reduction of tightness between the polished rod 13 and the wellhead due to abrasion is avoided.

As shown in fig. 1 and 2, the detection mechanism includes a connecting rod 1601, the connecting rod 1601 is fixedly connected to the left side of the base 1, a first connecting plate 1602 is fixedly connected between the upper end of the connecting rod 1601 and the supporting frame 2, a first fixing plate 1603 is fixedly connected to the left side of the upper surface of the first connecting plate 1602, a Y-shaped rod 1604 is slidably connected to the upper portion of the first fixing plate 1603, an elastic component is provided between the first fixing plate 1603 and the Y-shaped rod 1604, a roller 1605 slidably connected to the driving belt 11 is rotatably connected to the left side of the Y-shaped rod 1604, the first connecting plate 1602 is fixedly connected to a pressure sensor 1606 electrically connected to the control terminal 7 through a supporting rod, the right end of the Y-shaped rod 1604 is matched with the pressure sensor 1606, and the rope hanger 12 is provided with a falling preventing member for preventing the falling of the rope hanger 12.

As shown in fig. 2-4, the anti-falling component comprises a second fixing plate 1701, the second fixing plate 1701 is fixedly connected to the rope hanger 12, the second fixing plate 1701 is provided with a rectangular groove, the connecting rod 1601 is slidingly connected with the rectangular groove of the second fixing plate 1701, the right side of the second fixing plate 1701 is fixedly connected with a circular ring 1702, a second connecting plate 1703 is fixedly connected between the lower side of the connecting rod 1601 and the supporting frame 2, the first connecting plate 1602 and the second connecting plate 1703 are slidingly connected with sliding rods 1704, six rectangular plates 1705 which are circumferentially and symmetrically distributed are fixedly connected between the first connecting plate 1602 and the second connecting plate 1703, the circular ring 1702 is sleeved on the outer side of the rectangular plate 1705, a U-shaped limiting plate 1706 which is vertically distributed is fixedly connected between the two rectangular plates 1705, the sliding frame 1707 is obliquely arranged, the sliding frame 1707 is rotationally connected with two rollers 1708 which are symmetrically distributed, a circular table block 9 which is vertically distributed, the outer side surface of the circular table block 1709 is fixedly connected with the sliding frame, the sliding frame 1708 is far away from the circular ring 1708, the inner diameter of the circular table 1708 is matched with the sliding frame 1708, the inner diameter of the circular ring 1708 is gradually reduced, the sliding frame 1709 is far from the inner diameter of the circular ring 1708 is far from the circular ring 1708, and the inner diameter of the sliding frame 1708 is gradually reduced, and the inner diameter of the sliding frame is far from the sliding frame is gradually, and the sliding frame is used for reducing down.

As shown in fig. 2, the trigger assembly includes a T-shaped plate 1801, the T-shaped plate 1801 is fixedly connected to the upper end of the sliding rod 1704, a U-shaped rod 1802 slidably connected to the support frame 2 is fixedly connected between the U-shaped rod 1802 and the support frame 2, a tension spring 1803 is fixedly connected between the upper side of the U-shaped rod 1802 and rotatably connected to a supporting wheel 1804 matched with a driving belt 11, the supporting wheel 1804 is located above the support frame 2, the driving belt 11 in a tightening state extrudes the supporting wheel 1804, the supporting wheel 1804 drives the T-shaped plate 1801 to move downwards, and the tension spring 1803 is in a stretching state.

As shown in fig. 5 and 6, the pressure buffering assembly comprises a U-shaped frame 1901, the U-shaped frame 1901 is fixedly connected to a base 1, a rotating shaft 1902 is rotatably connected to the upper portion of the U-shaped frame 1901, a spur gear 1903 is fixedly connected to the right side of the rotating shaft 1902, a unidirectional gear 1904 is fixedly connected to the left side of the rotating shaft 1902, a first rack 1905 meshed with the unidirectional gear 1904 is fixedly connected to a sliding rod 1704, the first rack 1905 moves upwards, the unidirectional gear 1904 does not drive the rotating shaft 1902 to rotate, the first rack 1905 moves downwards, the unidirectional gear 1904 drives the rotating shaft 1902 to rotate, a fixing sleeve 1906 is fixedly connected to the base 1, a limiting rod 1907 is slidably connected to the fixing sleeve 1906, a second rack 1908 meshed with the spur gear 1903 is fixedly connected to the upper end of the limiting rod 1907, and the fixing sleeve 1906 is provided with a pressurizing assembly for increasing resistance when the limiting rod 1907 moves downwards.

As shown in fig. 6, the pressurizing assembly comprises a pushing disc 1909, wherein the pushing disc 1909 is fixedly connected to the lower end of a limiting rod 1907, the pushing disc 1909 is positioned in a fixed sleeve 1906 and is in sliding connection with the fixed sleeve 1907, a sealing ring is fixedly connected to the outer side surface of the pushing disc 1909 for increasing the tightness between the pushing disc 1909 and the fixed sleeve 1906, the pushing disc 1909 divides the lower part in the fixed sleeve 1906 into a first cavity 19061 and a second cavity 19062, the upper part in the fixed sleeve 1906 is provided with a third cavity 19063, the first cavity 19061 is filled with air, the second cavity 19062 and the third cavity 19063 are filled with liquid, the bottom part in the fixed sleeve 1906 is fixedly connected with a pressure sensor positioned in the first cavity 19061, the pressure sensor is used for detecting the pressure in the first cavity 19061, the air pressure sensor in the first cavity 19061 is electrically connected with the control terminal 7, the fixing sleeve 1906 is provided with a vent hole 19064 communicated with the third cavity 19063, the right side of the upper portion in the fixing sleeve 1906 is provided with a through hole communicated with the second cavity 19062 and the third cavity 19063, the through hole in the fixing sleeve 1906 is internally provided with a one-way valve 1910, the one-way valve 1910 is used for conveying liquid in the third cavity 19063 into the second cavity 19062, the left side of the upper portion in the fixing sleeve 1906 is in threaded connection with a blocking rod 1911, the left side of the upper portion in the fixing sleeve 1906 is provided with a pressure relief hole communicated with the second cavity 19062 and the third cavity 19063, the lower end of the blocking rod 1911 is in sealing fit with the pressure relief hole of the fixing sleeve 1906, the blocking rod 1911 rotates, the blocking rod 1911 moves upwards, and the lower end of the blocking rod 1911 gradually releases blocking the pressure relief hole.

When the pumping unit performs pumping operation, the supporting wheel 1804 is higher than the first belt wheel 5 in the up stroke when the driving belt 11 is not installed: an operator starts the first hydraulic push rod 6 through the control terminal 7, the first hydraulic push rod 6 drives the second belt pulley 8 to move upwards, the second belt pulley 8 drives the rope hanger 12 to move upwards through the driving belt 11, the rope hanger 12 drives the sucker rod 1301 to move upwards through the polished rod 13, the sucker rod 1301 drives the plunger 14 to move upwards, at the moment, the pressure on the upper side of the plunger 14 is increased, the traveling valve seals the plunger 14, the plunger 14 drives the oil on the upper side of the plunger 14 to move upwards, the plunger 14 moves upwards, the pressure between the plunger 14 and the fixed housing 15 is reduced, the fixed valve in the fixed housing 15 moves upwards, the fixed housing 15 is in a communicating state, the oil on the lower side of the fixed housing 15 is conveyed upwards between the fixed housing 15 and the plunger 14 through the fixed housing 15, when the second belt pulley 8 is located on the upper side of the support frame 2, the control terminal 7 stops the first hydraulic push rod 6, single oil extraction is completed, and the upper stroke is ended.

The following stroke: the control terminal 7 starts the first hydraulic push rod 6, the first hydraulic push rod 6 drives the second belt pulley 8 to move downwards, the gravity of the sucker rod 1301 and the plunger 14 enables the two to move downwards, the driving belt 11 is in a tightening state (the driving belt 11 presses the supporting wheel 1804, the supporting wheel 1804 drives the T-shaped plate 1801 to move downwards through the U-shaped rod 1802, the tension spring 1803 is in a stretching state), the plunger 14 moves downwards, the pressure between the plunger 14 and the fixed shell 15 increases, the travelling valve in the plunger 14 moves upwards, the plunger 14 is in a communicating state, the fixed valve in the fixed shell 15 moves downwards, the fixed shell 15 is in a blocking state, petroleum between the plunger 14 and the fixed shell 15 gradually enters the upper side of the fixed shell 15, and when the second belt pulley 8 is restored to the initial position, the control terminal 7 stops the first hydraulic push rod 6, the downstroke is ended, and the petroleum is continuously pumped out through the cooperation of the upstroke and the downstroke.

When extracting oil, when aiming at different oil wells or extracting oil with different depths, different stroke distances are needed, when the distance between the upstroke and the downstroke is needed to be changed, the hydraulic pumping unit carries out stepless speed regulation to change the stroke distance, and the specific operation is as follows: when the stroke distance needs to be shortened, the operator adjusts the telescopic length of the first hydraulic ram 6 through the control terminal 7 so that the stroke distance is reduced.

During oil exploitation, the pumping unit is located outdoors, weather, environment and other reasons accelerate ageing of the driving belt 11, friction is frequently generated between the driving belt 11 and the first belt pulley 5 in the oil pumping process, the driving belt 11 is thinned, the upper part of the driving belt 11 located between the first belt pulley 5 and the rope hanger 12 is deflected rightwards, deep friction is generated between the right side surface of the polished rod 13 and a wellhead, the tightness between the polished rod 13 and the wellhead is reduced due to long-time friction, and oil leaks from the wellhead, so that the part of the driving belt 11 located between the first belt pulley 5 and the rope hanger 12 needs to be regulated, and the part of the driving belt 11 located between the first belt pulley 5 and the rope hanger 12 is simply called as a damaged part of the belt, which is specifically operated as follows: when the upper part of the damaged part of the belt deflects rightwards, the upper part of the damaged part of the belt on the left side of the roller 1605 is extruded to start moving rightwards, the roller 1605 drives the Y-shaped rod 1604 to move rightwards, the elastic component is compressed, the right end of the Y-shaped rod 1604 is extruded to the pressure sensor 1606, the pressure sensor 1606 detects that the pressure value increases, the pressure sensor 1606 emits signals to the control terminal 7, the control terminal 7 starts the second hydraulic push rod 1607, the second hydraulic push rod 1607 drives the T-shaped block 4 to move leftwards, the T-shaped block 4 drives the first belt pulley 5 to move leftwards through the supporting rod, the upper part of the adjusting part of the driving belt 11 starts to move leftwards, the elastic component is reset to drive the Y-shaped rod 1604 to move leftwards, when the value detected by the pressure sensor 1606 is 0, the control terminal 7 stops the second hydraulic push rod 1607, the first belt pulley 5 is not leftwards moved any more, the adjusting part of the driving belt is adjusted, the abrasion condition of the driving belt 11 is detected by detecting the pressure of the driving belt 11 to the pressure sensor 1606 in real time, the position of the first belt 5 is intelligently and automatically adjusted, the position of the driving belt 11 is adjusted, the wellhead 13 is prevented from being leaked from the wellhead position, and the oil pipe is prevented from being leaked from the wellhead 101.

The long-term work of driving belt 11 is worn and torn, receives environmental factor to influence and leads to driving belt 11 fracture, and rope hanger 12, polished rod 13 and sucker rod 1301 fall downwards, consequently need intercept rope hanger 12, avoid rope hanger 12 and the part of its below to take place to drop and collide with the well head, carry out following operation: when the driving belt 11 breaks, the driving belt 11 at the upper part of the supporting wheel 1804 does not apply extrusion force to the supporting wheel 1804 any more, the tension spring 1803 in a stretched state resets, the tension spring 1803 drives the T-shaped plate 1801 to move upwards, the T-shaped plate 1801 drives the supporting wheel 1804 to move upwards through the U-shaped rod 1802, the T-shaped plate 1801 drives the slide rod 1704 to move upwards, the slide rod 1704 drives a row of round table blocks 1709 to move upwards, taking one round table block 1709 as an example, the round table block 1709 moves upwards, the outer side surface of the round table block 1709 extrudes three rollers 1708 close to the slide rod 1704, taking the right side of the outer side surface of the round table block 1709 as an example, the right side of the round table block 1709 moves upwards to extrude the left roller 1708, the left roller 1708 moves upwards through the slide frame 1707 to drive the right side roller 1708 to move upwards, the slide frame 1707 moves along the U-shaped limiting plate 1706, and when the lower part of the outer side surface of the round table block 1709 is contacted with the left roller 1708, the round table block 1709 is not moved upwards, and the right side roller 1708 is located on the moving path of the round ring 1702.

During the upward movement of the slide rod 1704, the slide rod 1704 drives the first rack 1905 at the lower end thereof to move upward, and the first rack 1905 does not drive the rotating shaft 1902 to rotate through the unidirectional gear 1904 due to the unidirectional characteristic of the unidirectional gear 1904.

When the driving belt 11 breaks, the rope hanger 12 drives the circular ring 1702 to move downwards through the second fixing plate 1701, when the circular ring 1702 contacts with the roller 1708, the inner side surface of the circular ring 1702 presses the roller 1708 on the right side, the roller 1708 on the right side drives the roller 1708 on the left side to move leftwards through the sliding frame 1707, the roller 1708 on the left side presses the outer side surface of the round table block 1709, the round table block 1709 moves downwards after being pressed, the round table block 1709 drives the sliding rod 1704 to move downwards, the upper end of the sliding rod 1704 drives the U-shaped rod 1802 to move downwards through the T-shaped plate 1801, the tension spring 1803 is stretched, the sliding rod 1704 drives the rotating shaft 1902 to rotate through the first rack 1905 and the unidirectional gear 1904 in the process of moving the sliding rod 1704 downwards, the rotating shaft 1902 drives the second rack 1908 to move downwards through the straight gear 1903, the second rack 1908 drives the push plate 1909 to move downwards through the limiting rod 1907, the pressure in the first cavity 19061 is reduced, the gas is compressed, the pressure in the second cavity 19062 is reduced in the process of moving the push plate 1909 downwards, the check valve 1910 is opened, liquid in the third cavity 19063 enters the second cavity 19062 through the check valve 1910, the sealing ring is sleeved on the push plate 1909, therefore, the tightness between the push plate 1909 and the fixed sleeve 1906 is improved, the gas in the first cavity 19061 is prevented from leaking, when the roller 1708 on the right side is in contact with the upper part of the inner side of the circular ring 1702, the circular ring 1702 continues to move downwards, the circular ring 1702 does not press the roller 1708 on the right side any more, the gas pressure in the first cavity 19061 causes the roller 1708 to generate resistance to the roller 1702 in the process of contacting the circular ring 1702, the downward moving speed of the circular ring 1702 is slowed down, and the downward moving speed of the sucker rod 1301 is slowed down indirectly.

When the circular ring 1702 is located below the circular table 1709, the circular ring 1702 no longer presses the roller 1708 on the right side, the tension spring 1803 resets, the circular table 1709 moves upwards, the roller 1708 is located on the moving path of the circular ring 1702 again, the circular table 1709 drives the sliding rod 1704 to move upwards, the rotating shaft 1902 does not rotate, the liquid is not easy to compress (the pushing disc 1909 is prevented from being pressed by the gas in the first cavity 19061 in a high-pressure state due to the fact that the gas in the first cavity 19062 presses the pushing disc 1909, the pressure in the second cavity 19062 is increased due to the fact that the pushing disc 1909 moves upwards), the liquid is in the second cavity 19062, the one-way valve 1910 is in a closed state, and the pushing disc 1909 does not move upwards.

When the ring 1702 continues to move downwards, the ring 1702 gradually approaches to the round table 1709 at the lower side, when the inner side surface of the ring 1702 is contacted with the roller 1708 at the lower side, the steps are continuously repeated to buffer the descending speed of the ring 1702, the push plate 1909 moves downwards for a distance again, the pressure in the first cavity 19061 continues to increase, along with the buffer of the descending speed of the ring 1702 by the plurality of rollers 1708, the longer the descending distance of the ring 1702 is, the greater the resistance of the roller 1708 to the ring 1702 is, until the pressure in the first cavity 19061 reaches a certain value, the push plate 1909 does not move downwards any more, the roller 1708 limits the ring 1702, the ring 1702 does not move downwards any more, the sucker rod 1301 is intercepted, the descending speed of the ring 1702 is buffered by air pressure, the resistance of the ring 1702 increases gradually, the ring 1702 is finally truncated, and the damage to the wellhead or the polished rod 12 is avoided.

When the sucker rod 1301 is not falling down any more, the value detected by the air pressure sensor in the first cavity 19061 reaches a certain value, the air pressure sensor in the first cavity 19061 transmits a signal to the control terminal 7, the control terminal 7 stops the first hydraulic push rod 6, the sucker rod is not pumping oil any more, meanwhile, the control terminal 7 transmits a signal to an operator, the operator receives the signal to know that the driving belt 11 is broken, the operator moves to a pumping site to replace the driving belt 11 and connect the driving belt 11 with the rope hanger 12, then the operator pulls the slide rod 1704 upwards, the slide rod 1704 drives the first rack 1905 to move upwards, the rotating shaft 1902 does not rotate, when the first rack 1905 is out of engagement with the first rack 1905, the operator rotates the blocking rod 1911 through a wrench, the blocking rod 1911 rotates upwards, the blocking rod 1911 gradually releases the blocking of the pressure release hole, when the blocking of the pressure relief hole is released, the second cavity 19062 and the third cavity 19063 are communicated through the pressure relief hole, the gas in the first cavity 19061 in a high pressure state releases pressure, the push plate 1909 moves upwards, the push plate 1909 pushes part of liquid in the second cavity 19062 into the third cavity 19063 through the pressure relief groove, when the push plate 1909 moves upwards, the push plate 1909 drives the second rack 1908 to move upwards through the limiting rod 1907, the second rack 1908 drives the one-way gear 1904 to rotate through the straight gear 1903 and the rotating shaft 1902, the one-way gear 1904 is idle due to the fact that the one-way gear 1904 is not meshed with the first rack 1905, when the pressure in the first cavity 19061 is normal pressure, an operator rotates the blocking rod 1911 through a spanner, the blocking rod 1911 moves downwards to block the pressure relief hole, the second cavity 19062 and the third cavity 19063 are not communicated any more, at the moment, the operator moves the first rack 1905 downwards to reset, the first rack 1905 again meshes with the unidirectional gear 1904.

Subsequently, the replacement of the completed drive belt 11 places the tension spring 1803 in tension, and the operator continues to activate the first hydraulic ram 6 to pump oil.

Example 2

On the basis of embodiment 1, as shown in fig. 2 and 3, the device further comprises an emergency locking mechanism, the emergency locking mechanism is arranged on the connecting rod 1601, the emergency locking mechanism is used for preventing the ring 1702 from falling down, the emergency locking mechanism comprises a driving switch 2001, the driving switch 2001 is fixedly connected to the front side surface of the connecting rod 1601, the driving switch 2001 is electrically connected with the control terminal 7, the driving switch 2001 is matched with a second fixed plate 1701, the second fixed plate 1701 moves downwards to be in contact with the driving switch 2001, the driving switch 2001 sends a signal to the control terminal 7, an electromagnetic push rod 2002 electrically connected with the control terminal 7 is fixedly connected to the left side of the upper portion of the supporting frame 2, two push plates 2003 symmetrically distributed are arranged at the telescopic ends of the electromagnetic push rod 2002, the push plate 2003 on the upper side is in sliding connection with the telescopic ends of the electromagnetic push rod 2002, the push plate 2003 on the lower side is fixedly connected with the telescopic ends of the electromagnetic push rod 2002, the push plate 2003 on the upper side is matched with the T-shaped plate 1801, a first spring 20031 is fixedly connected between the two push plates 2003, the elastic coefficient of the first spring 20031 is larger than the elastic coefficient of a tension spring 3, the elastic coefficient of the second spring 2001 is connected with the second push plate 1703, when the two push rods 2005 are in sliding connection with the two push rods 2005 on the lower sides of the lower side, and the upper side of the push rod 2005 are in sliding connection with the telescopic ends of the electromagnetic push rod 2002, the upper side is gradually contacted with the round rings 1709, the lower side of the elastic rings, and the elastic rings are gradually compressed between the elastic rods of the push rods and the push rods are in between the two elastic rods, and the elastic coefficients of the push rod and the push plate is.

In the process of extracting oil, since the tension spring 1803 is in a stretched state for a long time, the elasticity of the tension spring 1803 is reduced due to the overlong service time, when the elasticity of the tension spring 1803 is reduced, and the driving belt 11 breaks, the slide rod 1704 cannot reset, the buffering effect of the anti-falling component on the circular ring 1702 is reduced, the circular ring 1702 is difficult to be intercepted due to insufficient pressure storage in the first cavity 19061, or the slide rod 1704 cannot reset due to rust of parts, so that an emergency locking mechanism needs to be started to intercept the circular ring 1702, and the following specific operation is as follows: in the initial state, the upper push plate 2003 is not contacted with the T-shaped plate 1801, in the normal working process of the pumping unit, the height of the second fixed plate 1701 is not lower than that of the driving switch 2001, if the driving belt 11 breaks, the second fixed plate 1701 moves downwards to be contacted with the driving switch 2001, the driving switch 2001 sends a signal to the control terminal 7, the control terminal 7 starts the electromagnetic push rod 2002, the electromagnetic push rod 2002 drives the lower push plate 2003 to move upwards, the elastic coefficient of the first spring 20031 is larger than that of the tension spring 1803, the first spring 20031 is not compressed, the lower push plate 2003 drives the upper push plate 2003 to move upwards through the first spring 20031, the upper push plate 2003 drives the T-shaped plate 1801 to move upwards (because the first spring 20031 is in the normal state for a long time, the first spring 20031 does not lose elasticity), the T-shaped plate 1801 drives the slide rod 1704 to move upwards, the rollers 1708 with unequal intervals on the lower side of the driving switch 2001 are located on the moving path of the circular ring 1702, the steps of embodiment 1 are continuously repeated to buffer the circular ring 1702 through the roller 1708 on the lower side, at this time, when the sliding rod 1704 is reset, the elastic force of the first spring 20031 is used instead of the elastic force of the tension spring 1803, the interval between the adjacent rollers 1708 from top to bottom on the lower side is gradually reduced, the time interval for buffering the circular ring 1702 is gradually reduced, the buffering effect on the circular ring 1702 is sequentially increased, finally, the circular ring 1702 is contacted with the upper side surface of the baffle ring 2005, the baffle ring 2005 moves downwards after being pressed, the downward impact force on the circular ring 1702 is buffered through the baffle ring 2005 when the second spring 2006 is compressed, finally, the circular ring 1702 is stopped, in summary, the falling sucker rod 1301 is buffered through the cooperation of air pressure and mechanical parts, the sucker rod 1301 is stopped in time, and intelligent detection is performed when the parts are aged, the falling prevention component is forcedly started by the driving switch 2001, and the sucker rod 1301 is buffered and intercepted by the cooperation of the blocking ring 2005, and the falling risk of the sucker rod 1301 is reduced by the cooperation of the driving switch 2001 and the blocking ring 2005.

Example 3

On the basis of the embodiment 2, as shown in fig. 1 and 7-9, the paraffin removal device further comprises two paraffin removal mechanisms which are vertically and symmetrically distributed, the paraffin removal mechanisms which are symmetrically distributed are arranged on the plunger 14, the paraffin removal mechanisms are used for removing paraffin attached to the inner wall of the oil pipe 101, the paraffin removal mechanisms comprise push rings 2101, the push rings 2101 are fixedly connected with the plunger 14, the push rings 2101 are slidably connected with a first arc-shaped ring 2102, the cross section area of one side of the push rings 2101, which is far away from the plunger 14, is larger than the cross section area of the side, which is close to the plunger 14, of the push rings 2101, an elastic piece 2103 is fixedly connected between the first arc-shaped ring 2102 and the plunger 14, the push rings 2101 are slidably connected with a second arc-shaped ring 2104, the second arc-shaped ring 2104 is positioned on the inner side of the first arc-shaped ring 2102 and one side, which is far away from the plunger 14, of the first arc-shaped plates 2105 and the second arc-shaped plates 2106 which are circumferentially and uniformly distributed at equal intervals are fixedly connected, the push ring 2101, the first arc ring 2102, the second arc ring 2104, the first arc plate 2105 and the second arc plate 2106 are matched to form an oil storage cavity, one side of the first arc plate 2105 and one side of the second arc plate 2106, which are far away from the inner wall of the oil pipe 101, are respectively provided with an arc surface, the first arc plate 2105 and the second arc plate 2106 move upwards to scrape the paraffin attached to the inner wall of the oil pipe 101, the paraffin is guided to the middle part of the oil pipe 101 under the guiding action of the arc surfaces of the first arc plate 2105 and the second arc plate 2106, the distance between one side of the first arc plate 2105, which is far away from the plunger 14, and the plunger 14 is larger than the distance between one side of the second arc plate 2106, which is far away from the plunger 14, and the plunger 14, the upper side of the first arc plate 2105 is contacted with the paraffin, the paraffin is broken and cut off, the adhesion force between the paraffin is reduced, the paraffin is scraped by the second arc plate 2106, the rest paraffin is distributed in a staggered way, the first arc plate 2105 distributed at equal intervals in the circumferential direction and the second arc plate 2106 distributed at equal intervals, the first arc 2105 is provided with three through holes that communicate with the oil storage cavity, and the push ring 2101 moves upwards to extrude the oil in the oil storage cavity to get into the three through holes of the first arc 2105, and the push ring 2101 is provided with the drive assembly that is used for rotating the first arc 2102.

As shown in fig. 8 and 9, the driving assembly includes equally spaced spacing balls 2107, the equally spaced spacing balls 2107 are fixedly connected to the outer side surface of the push ring 2101, the inner side surface of the first arc ring 2102 is provided with equally spaced inclined sliding grooves, the spacing balls 2107 are slidably connected with adjacent inclined sliding grooves, and the spacing balls 2107 move upwards to drive the inclined sliding grooves of the first arc ring 2102 to rotate.

In the oil pumping process of the oil pumping unit, paraffin is generated on the inner wall of the oil pipe 101 to influence the amount of the oil pumped by the movement of the plunger 14, so that the paraffin on the inner wall of the oil pipe 101 needs to be cleaned in time, and the specific operation is as follows: taking upward movement of the plunger 14 as an example, the plunger 14 drives the push ring 2101 to move upward, the plunger 14 drives the first arc ring 2102 to move upward through the elastic element 2103, the first arc ring 2102 drives the first arc plate 2105 and the second arc plate 2106 to move upward, and the first arc plate 2105 and the second arc plate 2106 drive the second arc ring 2104 to move upward, which is divided into two cases according to the adhesion amount of paraffin.

When the paraffin adhesion amount on the inner wall of the oil pipe 101 is small, the first arc-shaped plate 2105 and the second arc-shaped plate 2106 move upwards to scrape the paraffin attached on the inner wall of the oil pipe 101, the paraffin is conveyed to the middle part of the oil pipe 101 under the guiding action of the arc-shaped surfaces of the first arc-shaped plate 2105 and the second arc-shaped plate 2106, and in the paraffin scraping process of the first arc-shaped plate 2105 and the second arc-shaped plate 2106, the upper side of the first arc-shaped plate 2105 is higher than the upper side of the second arc-shaped plate 2106 because the upper side of the first arc-shaped plate 2105 is contacted with the paraffin, the integrity of the paraffin on the inner wall of the oil pipe 101 is destroyed, the adhesion force between the paraffin is reduced, and the rest of the paraffin is scraped through the second arc-shaped plate 2106.

When the paraffin adhesion amount on the inner wall of the oil pipe 101 is more, the upward movement of the first arc-shaped plate 2105 and the second arc-shaped plate 2106 is insufficient to destroy the paraffin and scrape the paraffin, so that the first arc-shaped plate 2105 and the second arc-shaped plate 2106 are blocked and cannot move upwards, the plunger 14 continues to drive the push ring 2101 to move upwards, the elastic element 2103 is compressed, the push ring 2101 drives the limiting ball 2107 to move upwards, the limiting ball 2107 drives the first arc-shaped plate 2107 to rotate through the inclined chute of the first arc-shaped plate 2102, the first arc-shaped plate 2102 drives the first arc-shaped plate 2105 and the second arc-shaped plate 2106 to rotate, the second arc-shaped plate 2106 rotates to scrape the paraffin on the upper side of the first arc-shaped plate 2105, the push ring 2101 extrudes the petroleum in the oil storage cavity into the three-way holes of the first arc-shaped plate 2105 in the process of the upward movement of the first arc-shaped plate 2101, the petroleum is discharged from the three-way holes of the first arc-shaped plate 2105, the auxiliary paraffin is separated from the inner wall of the oil pipe 101, and finally the paraffin is scraped off through the inclined chute of the first arc-shaped plate 2102 and the second arc-shaped plate 2106, the paraffin is prevented from moving downwards due to the fact that the first arc-shaped plate 2106 moves downwards, and the first arc-shaped plate 2106 is prevented from moving upwards, and the paraffin is accumulated in the three-way holes of the first arc-shaped plate 2105 is prevented from moving upwards through the first arc-shaped plate 2106, and the upper side is completely moves down, and the paraffin is prevented from moving up and the upper than the first arc-shaped plate 210is completely and has high up.

The embodiments described above are intended to provide those skilled in the art with a full range of modifications and variations to the embodiments described above without departing from the inventive concept thereof, and therefore the scope of the invention is not limited by the embodiments described above, but is to be accorded the broadest scope consistent with the innovative features recited in the claims.

Claims

1. The stepless speed regulation intelligent hydraulic pumping unit comprises a base (1), the base (1) is fixedly connected with a support frame (2), the support frame (2) is rotationally connected with a belt pulley (3), the stepless speed regulation intelligent hydraulic pumping unit is characterized in that the support frame (2) is provided with a T-shaped groove, a T-shaped block (4) is slidably connected in the T-shaped groove of the support frame (2), the T-shaped block (4) is rotationally connected with a first belt pulley (5) through a support rod, the base (1) is fixedly connected with a first hydraulic push rod (6), the base (1) is fixedly connected with a control terminal (7), the first hydraulic push rod (6) is electrically connected with the control terminal (7), a telescopic end of the first hydraulic push rod (6) is rotationally connected with a second belt pulley (8) through a support rod, part of the belt pulley (3) is wound with a balance belt (9), one end of the balance belt (9) is fixedly connected with the support frame (2), the other end of the balance belt pulley (3), a driving belt pulley (11) is fixedly connected with the other end of the balance belt pulley (8) through a driving belt pulley (11), one end of the driving belt (11) is fixedly connected with the support frame (2), the other end of the driving belt (11) is fixedly connected with a polished rod (12), the telescopic rod (13) is fixedly connected with a polished rod (1301), the lower side of polished rod (13) is provided with oil pipe (101), oil pipe (101) sliding connection has plunger (14) with sucker rod (1301) rigid coupling, be provided with the travelling valve in plunger (14), the rigid coupling has fixed casing (15) that are located plunger (14) downside in oil pipe (101), be provided with fixed valve in fixed casing (15), support frame (2) rigid coupling has second hydraulic push rod (1607) with control terminal (7) electricity connection, the flexible end and T shape piece (4) rigid coupling of second hydraulic push rod (1607), base (1) are provided with the detection mechanism who is used for detecting drive belt (11) impaired degree, after drive belt (11) wearing and tearing, second hydraulic push rod (1607) drive first belt pulley (5) through T shape piece (4) rigid coupling and bracing piece and left movement, the position of adjustment drive belt (11).

2. The stepless speed regulating intelligent hydraulic pumping unit according to claim 1, wherein the detection mechanism comprises a connecting rod (1601), the connecting rod (1601) is fixedly connected to the base (1), a first connecting plate (1602) is fixedly connected between one side, far away from the base (1), of the connecting rod (1601) and the supporting frame (2), the first connecting plate (1602) is fixedly connected with a first fixing plate (1603), the first fixing plate (1603) is slidably connected with a Y-shaped rod (1604), an elastic component is arranged between the first fixing plate (1603) and the Y-shaped rod (1604), the Y-shaped rod (1604) is rotatably connected with a roller (1605) which is slidably connected with the driving belt (11), the first connecting plate (1602) is fixedly connected with a pressure sensor (1606) which is electrically connected with the control terminal (7) through a supporting rod, one end, far away from the roller (1605), of the Y-shaped rod (1604) is matched with the pressure sensor (1606), and the rope hanger (12) is provided with a falling preventing component which is used for preventing the falling of the rope hanger (12).

3. The intelligent hydraulic pumping unit with stepless speed regulation according to claim 2, wherein the anti-falling component comprises a second fixed plate (1701), the second fixed plate (1701) is fixedly connected with a rope hanger (12), the second fixed plate (1701) is in sliding connection with a connecting rod (1601), a circular ring (1702) is fixedly connected with the second fixed plate (1701), a second connecting plate (1703) is fixedly connected between one side of the connecting rod (1601) close to the base (1) and the supporting frame (2), sliding rods (1704) are slidably connected between the first connecting plate (1602) and the second connecting plate (1703), a rectangular plate (1705) which is circumferentially and symmetrically distributed is fixedly connected between the first connecting plate (1602) and the second connecting plate (1703), a row of U-shaped limiting plates (1706) are fixedly connected with a sliding frame (1707), a row of blocks (9) are fixedly connected between the sliding frame (1707) and the supporting frame (2), the outer side surface of the blocks (9) and the inner side surface of the sliding rods (1708) are far from the circular ring (1708) are gradually matched with the inner diameter of the circular ring (1708), the inner diameter of the sliding rod component (1708) is gradually matched with the inner diameter of the circular ring (1708), the trigger assembly is used for detecting whether the driving belt (11) is broken, and the pressure buffering assembly is used for slowing down the downward moving speed of the circular ring (1702).

4. The stepless speed regulating intelligent hydraulic pumping unit according to claim 3, wherein the triggering component comprises a T-shaped plate (1801), the T-shaped plate (1801) is fixedly connected to one end of the sliding rod (1704) close to the first connecting plate (1602), the T-shaped plate (1801) is fixedly connected with a U-shaped rod (1802) which is slidably connected with the support frame (2), a tension spring (1803) is fixedly connected between the U-shaped rod (1802) and the support frame (2), and the U-shaped rod (1802) is rotatably connected with a supporting wheel (1804) which is matched with the driving belt (11).

5. The stepless speed regulating intelligent hydraulic pumping unit according to claim 3, wherein the pressure buffering assembly comprises a U-shaped frame (1901), the U-shaped frame (1901) is fixedly connected to the base (1), the U-shaped frame (1901) is rotationally connected with a rotating shaft (1902), the rotating shaft (1902) is fixedly connected with a straight gear (1903) and a unidirectional gear (1904), the sliding rod (1704) is fixedly connected with a first rack (1905) meshed with the unidirectional gear (1904), the base (1) is fixedly connected with a fixed sleeve (1906), the fixed sleeve (1906) is slidably connected with a limiting rod (1907), the limiting rod (1907) is fixedly connected with a second rack (1908) meshed with the straight gear (1903), and the fixed sleeve (1906) is provided with a pressurizing assembly for increasing resistance when the limiting rod (1907) moves downwards.

6. The intelligent stepless speed regulating hydraulic pumping unit according to claim 5, wherein the pressurizing assembly comprises a pushing disc (1909), the pushing disc (1909) is fixedly connected to a limiting rod (1907), the pushing disc (1909) is located in a fixed sleeve (1906) and is in sliding connection with the fixed sleeve, the pushing disc (1909) is fixedly connected with a sealing ring, the pushing disc (1909) divides the lower part in the fixed sleeve (1906) into a first cavity (19061) and a second cavity (19062), a third cavity (19063) is arranged in the fixed sleeve (1906), the first cavity (19061) is filled with air, the second cavity (19062) and the third cavity (19063) are filled with liquid, an air pressure sensor located in the first cavity (19061) is fixedly connected with the fixed sleeve (1906), the air pressure sensor in the first cavity (19061) is electrically connected with the control terminal (7), an air vent (19064) communicated with the third cavity (19063) is arranged in the fixed sleeve (1906), the fixed sleeve (1906) is provided with a through hole (19063) communicated with the third cavity (19063), and a one-way valve is arranged in the fixed sleeve (1906).

7. The stepless speed regulating intelligent hydraulic pumping unit according to claim 6, wherein the fixed sleeve (1906) is in threaded connection with a plugging rod (1911), a pressure relief hole which is communicated with the second cavity (19062) and the third cavity (19063) is formed in the fixed sleeve (1906), and the plugging rod (1911) is in sealing fit with the pressure relief hole of the fixed sleeve (1906).

8. The intelligent stepless speed regulating hydraulic pumping unit according to claim 4, further comprising an emergency locking mechanism, wherein the emergency locking mechanism is arranged on the connecting rod (1601), the emergency locking mechanism is used for preventing the ring (1702) from falling, the emergency locking mechanism comprises a driving switch (2001), the driving switch (2001) is fixedly connected with the connecting rod (1601), the driving switch (2001) is electrically connected with the control terminal (7), the driving switch (2001) is matched with the second fixed plate (1701), the supporting frame (2) is fixedly connected with an electromagnetic push rod (2002) electrically connected with the control terminal (7), the telescopic end of the electromagnetic push rod (2002) is provided with a symmetrically distributed push plate (2003), the push plate (2003) at the upper side is in sliding connection with the telescopic end of the electromagnetic push rod (2002), the push plate (2003) at the lower side is fixedly connected with the telescopic end of the electromagnetic push rod (2002), the push plate (2003) at the upper side is matched with the T-shaped plate (1801), a first spring (20031) is fixedly connected between the symmetrically distributed push plate (2003), the elastic coefficient of the first spring (20031) is larger than the elastic coefficient of the second fixed plate (1803), the second connecting plate (3) is in sliding connection with the symmetrically distributed push rod (2004) and is fixedly connected with the ring (2005), a second spring (2006) is fixedly connected between the baffle ring (2005) and the second connecting plate (1703), and the interval between the adjacent round platform blocks (1709) positioned at the lower side of the driving switch (2001) is gradually reduced from top to bottom.

9. The stepless speed regulation intelligent hydraulic pumping unit according to claim 1, further comprising symmetrically distributed paraffin removal mechanisms, wherein the symmetrically distributed paraffin removal mechanisms are all arranged on the plunger (14), the paraffin removal mechanisms are used for removing paraffin attached to the inner wall of the oil pipe (101), the paraffin removal mechanisms comprise push rings (2101), the push rings (2101) are fixedly connected with the plunger (14), the push rings (2101) are slidably connected with first arc rings (2102), elastic elements (2103) are fixedly connected between the first arc rings (2102) and the plunger (14), the push rings (2101) are slidably connected with second arc rings (2104), the first arc rings (2102) and the second arc plates (2106) which are distributed at equal intervals in the circumferential direction are fixedly connected with first arc plates (2105) and second arc plates (2106) which are distributed at equal intervals in the circumferential direction, the push rings (2101), the first arc rings (2101), the second arc rings (2104), the first arc plates (2105) and the second arc plates (2106) are matched with each other to form an oil storage cavity, the first arc plates (2105) and the second arc plates (2106) are fixedly connected with the second arc plates (2104), the first arc plates (2105) which are distributed at equal intervals in the circumferential direction and are far away from the first arc plates (2106) and are arranged on one side (14) of the first arc plates (14) which are distributed at equal intervals, the first arc-shaped plate (2105) is provided with three through holes communicated with the oil storage cavity, and the push ring (2101) is provided with a driving assembly for rotating the first arc-shaped ring (2102).

10. The intelligent stepless speed regulating hydraulic pumping unit according to claim 9, wherein the driving assembly comprises limiting balls (2107) distributed at equal intervals, the limiting balls (2107) distributed at equal intervals are fixedly connected to the push ring (2101), the first arc ring (2102) is provided with inclined sliding grooves distributed at equal intervals, and the limiting balls (2107) are in sliding connection with the adjacent inclined sliding grooves.