CN218816346U

CN218816346U - Beam balance multiple stroke oil pumping machine

Info

Publication number: CN218816346U
Application number: CN202223558494.4U
Authority: CN
Inventors: 李绍奇; 郭三如; 刘峰林; 马述俭; 吕亚东; 董宏宇; 吕霄
Original assignee: XINJIANG UYGUR AUTONOMOUS REGION NO 3 MACHINE TOOL WORKS
Current assignee: XINJIANG UYGUR AUTONOMOUS REGION NO 3 MACHINE TOOL WORKS
Priority date: 2022-12-30
Filing date: 2022-12-30
Publication date: 2023-04-07
Anticipated expiration: 2032-12-30

Abstract

The utility model relates to a beam-pumping unit technical field is a balanced double stroke beam-pumping unit of walking beam, including base, frame, fixed pulley, movable pulley, steel cable, walking beam and horse head, base upside fixed mounting has the frame, and the frame right part upside rotates and installs the fixed pulley, and the articulated walking beam of installing anti-L shape of frame left part upside that corresponds fixed pulley left position, and walking beam right part upside is equipped with the movable pulley, and the first end fixed connection of frame right part and steel cable is in the same place. The utility model has the advantages of reasonable and compact structure, convenient to use, beam balance double stroke beam-pumping unit combine conventional beam-pumping unit excellent mechanical properties and stability, utilize the long stroke structure that the double journey principle of movable pulley realized beam-pumping unit on conventional beam-pumping unit basis, its advantage lies in the fuselage size less relatively, great stroke. After the stroke is adjusted, the relative position of the balance weight and the ground does not change, the safety of the pumping unit is higher after the load loss, and the pumping unit has the characteristics of safety, labor saving, simplicity, convenience and high efficiency.

Description

Beam-balanced double-stroke oil pumping unit

Technical Field

The utility model relates to a beam-pumping unit technical field is a balanced double stroke beam-pumping unit of walking beam.

Background

With the development of water flooding of old oil field wells, oil fields have begun to enter the late stage of high water content development. The productivity of the oil well is continuously increased, and the problems of large load fluctuation and high energy consumption are solved in the process of gradually exposing the running beam-pumping unit. Some conventional beam pumping units are limited by machine types, the swing angle is small, the beam structure is limited, the whole machine is large in size and heavy in weight, and the requirements for long-stroke and low-stroke production under the situation of high water-content development capacity cannot be met to a certain extent due to the fact that the machine types are small and are limited by strokes particularly. Therefore, the conventional beam-pumping unit is transformed into an energy-saving pumping unit with the characteristic of long stroke, and the requirements of energy conservation and consumption reduction under the new oil field development situation are favorably met.

Conventional beam-pumping units require long strokes due to the four-bar linkage characteristic, which can significantly increase the structural volume. The performance is that the sizes of walking beams, horse heads, oversized crank balance weights and the like are multiplied.

The beam-pumping unit with long stroke has increased stroke and lowered stroke frequency, and the sucker rod is stressed in several times, so that the breaking of the crank pin is increased obviously and the working stability is lowered. Meanwhile, the self weight of the beam-pumping unit with long stroke increases along with the increase of the stroke length, so that the manufacturing, transporting and installing costs of the pumping unit increase.

Chinese patent document CN101629483B discloses a power balance pumping unit, which comprises a wellhead support, an oil pumping flexible rope, and a speed reducer fixed on a frame, and is characterized in that: the speed reducer drives the oil pumping crank through a main output shaft, drives the power balance weight crank through an auxiliary output shaft, a load balance weight and a power balance weight are respectively fixed on the oil pumping crank and the power balance weight crank, the rotating speed of the auxiliary output shaft is 2 times of that of the main output shaft, the power balance weight crank lags behind by 90 degrees relative to the oil pumping crank at the upper dead center position of the oil pumping crank, and the power balance weight crank leads by 90 degrees relative to the oil pumping crank at the lower dead center position of the oil pumping crank; the flexible oil pumping rope is fixed on the hinge seat after bypassing the oil pumping chain wheel at the upper end of the wellhead support and the crank chain wheel on the oil pumping crank, the hinge seat is fixed on the connecting rod, and two ends of the connecting rod are respectively fixed on the rack and the wellhead support. This flexible rope one end of beam-pumping unit oil pumping is connected the oil-well pump in the pit, and the other end is fixed in on the hinge mount after bypassing the oil pumping sprocket of well head support upper end and the crank sprocket on the oil pumping crank in proper order, has realized 4 times stroke, but need erect the well head support at the well head when installation oil pumping sprocket, the operation of the follow-up well head of not being convenient for, the erection of well head support has also increased the installation cost of beam-pumping unit simultaneously.

Chinese patent publication No. CN2060483U discloses a double-stroke oil well pump capable of increasing the stroke of a ground oil pumping unit by 0.5-1.5 times at the bottom of a well through its own structure, which is characterized in that: (1) The outer circle of the upper pull rod and the inner hole of the fixed sealing assembly form a group of dynamic sealing pairs, the inner hole of the movable pump cylinder and the outer circle of the plunger form a group of dynamic sealing pairs, and the two groups of dynamic sealing pairs form an oil cavity C; (2) The outer circle of the lower pull rod and the inner hole of the floating seal assembly form a group of dynamic seal pairs, the outer circle of the floating seal assembly and the inner hole of the pump cylinder assembly form a group of dynamic seal pairs, and the two groups of dynamic seals form an oil cavity D; (3) Working fluid in the oil cavity C and the oil cavity D circulates through the middle joint; (4) The sucker rod joint, the upper pull-up village inner hole, the plunger inner hole, the lower pull rod inner hole and the inner joint form a flow passage E. When the pumping unit works, the upper pull rod and the traveling pump barrel in the double-stroke mechanism and the upper sucker rod string reciprocate up and down, when the stroke loss of the sucker rod string in the underground is not considered, the stroke length of the traveling pump barrel is matched with that of a ground pumping unit, and the plunger reciprocates up and down by 1.5-2.5 times of the stroke length of the traveling pump barrel due to pressure change caused by volume change in oil cavities C and D, and drives a working plunger assembly in a long-stroke oil well pump to work by 1.5-2.5 times of the stroke length of the ground pumping unit, so that long-stroke oil pumping is realized. But the stroke is not easy to adjust, the structure is more complex, and the subsequent maintenance cost is higher.

Chinese patent publication No. CN2550497Y discloses a curved beam pumping unit driven by a pulley block, comprising: the horse head, the walking beam, the bracket, the power machine-the power transmission device, characterized in that: A. the power of the power machine-power transmission device mounted under the machine frame is passed through flexible transmission component, and passed through front and rear two sets of pulley blocks respectively, and firstly and secondly transferred to front and rear arms of walking beam, said front and rear two sets of pulley blocks are respectively formed from 1-2 groups of fixed pulleys and 0-1 group of movable pulleys, said fixed pulleys are mounted on the machine seat and/or machine frame, and said movable pulleys are mounted on the front and rear arms of walking beam; B. the walking beam is a bent walking beam with a rear arm inclined downwards at an angle alpha, and the bent part is provided with an adjustable balancing weight block which can be increased and decreased in number and is detachably connected and installed. The front and rear sets of pulley blocks respectively comprise at least one set of fixed pulleys, or each set of pulley blocks comprises a movable pulley and at least one set of fixed pulleys which are arranged on the front arm and the rear arm of the walking beam, or each set of pulley blocks comprises a movable pulley and two sets of fixed pulleys which are arranged on the front arm and the rear arm of the walking beam. The stroke of the pumping unit still has the defect of inconvenient adjustment.

The double-stroke pumping unit disclosed in the prior art is inconvenient for adjusting the stroke on one hand, and is inconvenient for subsequent maintenance work due to the large and complex structure on the other hand.

Disclosure of Invention

The utility model provides a balanced doubly stroke beam-pumping unit of walking beam has overcome above-mentioned prior art not enough, and it can effectively solve current conventional beam-pumping unit and have the problem that increases the stroke and can make the structure volume show the increase.

The technical scheme of the utility model is realized through following measure: the utility model provides a balanced double stroke beam-pumping unit of walking beam, the on-line screen storage device comprises a base, a machine support, the fixed pulley, the movable pulley, the steel cable, walking beam and horse head, base upside fixed mounting has the frame, frame right part upside rotates and installs the fixed pulley, the articulated walking beam of installing anti-L shape of frame left part upside that corresponds fixed pulley left position, walking beam right part upside is equipped with the movable pulley, the frame right part is in the same place with the first end fixed connection of steel cable, the second end of steel cable walks around the movable pulley left part outside in proper order, fixed connection has the rope hanger behind the fixed pulley right part outside, the articulated connecting rod of installing in walking beam left part lower side that corresponds frame left position, fixed mounting has the reduction gear on the base that corresponds frame left position, install driving motor on the base that corresponds the right-hand position of reduction gear, driving motor's drive shaft and the input shaft transmission of reduction gear are connected, the output shaft fixed mounting of reduction gear has the crank of being connected with the articulated connecting rod lower extreme, the horse head is fixed with the horse head that corresponds the walking beam left side of connecting rod left position, horse head left side fixed connection has the counterweight.

The following are further optimization or/and improvement of the technical scheme of the utility model:

the front side of the right part of the walking beam can be provided with a plurality of pairs of adjusting holes which are communicated from front to back at intervals, the center of the movable pulley is fixedly provided with a rotating shaft, and two ends of the rotating shaft are rotatably arranged in one pair of the adjusting holes.

The upper end of the connecting rod can be hinged with the lower side of the left part of the walking beam, and the corner of the walking beam is hinged with the upper side of the left part of the rack.

The upper side of the counter weight can be provided with two lifting ropes with upper ends fixed on the upper side of the horse head after bypassing the outer side of the horse head.

The utility model has the advantages of reasonable and compact structure, convenient to use, beam balance double stroke beam-pumping unit combine conventional beam-pumping unit excellent mechanical properties and stability, utilize the long stroke structure that the double journey principle of movable pulley realized beam-pumping unit on conventional beam-pumping unit basis, its advantage lies in the fuselage size less relatively, great stroke. After the stroke is adjusted, the relative position of the balance weight and the ground does not change, the safety of the pumping unit is higher after the load loss, and the pumping unit has the characteristics of safety, labor saving, simplicity, convenience and high efficiency.

Drawings

Fig. 1 is a schematic front view structure diagram of the first embodiment.

The codes in the figures are respectively: the device comprises a base 1, a rack 2, a fixed pulley 3, a movable pulley 4, a steel rope 5, a walking beam 6, a horse head 7, a speed reducer 8, a driving motor 9, a crank 10, a connecting rod 11, a counterweight 12, a rotating shaft 13, an adjusting hole 14, a lifting rope 15 and a rope hanger 16.

Detailed Description

The utility model discloses do not receive the restriction of following embodiment, can be according to the utility model discloses a technical scheme and actual conditions determine concrete implementation.

In the present invention, for convenience of description, the description of the relative position relationship of the components is described according to the layout mode of the attached drawing 1 in the specification, such as: the positional relationship of front, rear, upper, lower, left, right, etc. is determined in accordance with the layout direction of the drawings of the specification.

The invention will be further described with reference to the following examples and drawings:

the first embodiment is as follows: as shown in the attached drawing 1, the walking beam balance double-stroke pumping unit comprises a base 1, a frame 2, a fixed pulley 3, a movable pulley 4, a steel rope 5, a walking beam 6 and a horse head 7, wherein the frame 2 is fixedly installed on the upper side of the base 1, the fixed pulley 3 is rotatably installed on the upper side of the right part of the frame 2, the left part of the frame 2 corresponding to the left position of the fixed pulley 3 is hinged with the reversed L-shaped walking beam 6, the movable pulley 4 is arranged on the upper side of the right part of the walking beam 6, the right part of the frame 2 is fixedly connected with the first end of the steel rope 5, the second end of the steel rope 5 sequentially bypasses the left outer side of the movable pulley 4, a rope hanger 16 is fixedly connected to the rear part of the right outer side of the fixed pulley 3, a connecting rod 11 is hinged to the lower side of the left part of the walking beam 6 corresponding to the left position of the frame 2, a speed reducer 8 is fixedly installed on the base 1 corresponding to the left position of the frame 2, a driving motor 9 is installed on the base 1 corresponding to the right position of the speed reducer 8, a driving shaft of the driving motor 9 is in transmission connection with an input shaft of the speed reducer 8, an output shaft of the reducer 8 is fixedly connected with a crank 10 hinged with the crank hinged with the lower end of a connecting rod 11, a left end of the crank hinged with a left end of the crank connected with the crank, a left fixed of the crank 7 corresponding to the connecting rod 11, and a left fixed mule head 7 corresponding to the mule head 12 is fixed on the left end of the mule head 7. The polished rod eye 16 is fixedly mounted with the polished rod as required. The utility model has the advantages of reasonable and compact structure, convenient to use, beam balance double stroke beam-pumping unit combine conventional beam-pumping unit excellent mechanical properties and stability, utilize the long stroke structure that the double journey principle of movable pulley realized beam-pumping unit on conventional beam-pumping unit basis, its advantage lies in the fuselage size less relatively, great stroke. After the stroke is adjusted, the relative position of the counterweight 12 and the ground does not change, the safety of the pumping unit is higher after the load loss, the installation position of the movable pulley 4 is adjusted by the reversed L-shaped walking beam 6, and the swing amplitude of the walking beam 6 is not influenced, so that the relative operation position of the counterweight 12 after the stroke is adjusted does not change, and the pumping unit has the characteristics of safety, labor saving, simplicity, convenience and high efficiency.

The beam-balanced double-stroke pumping unit can be further optimized or/and improved according to actual requirements:

example two: as shown in the attached figure 1, a plurality of pairs of adjusting holes 14 which are through from front to back are arranged at intervals up and down on the front side of the right part of the walking beam 6, a rotating shaft 13 is fixedly installed in the center of the movable pulley 4, and two ends of the rotating shaft 13 are rotatably installed in one pair of adjusting holes 14. The further regulation hole 14 that sets up of this embodiment, under the swing of walking beam 6, movable pulley 4 drives lifting rope 15 and realizes the double journey of polished rod to effectively increase the stroke, pivot 13 is installed in the regulation hole 14 of different positions, can realize the regulation of different strokes, and according to the demand, the front end of pivot 13 rotates and installs in the regulation hole 14 in the place ahead, and the rear end of pivot 13 rotates and installs in the regulation hole 14 in rear.

Example three: as shown in the attached figure 1, the upper end of the connecting rod 11 is hinged with the lower side of the left part of the walking beam 6, and the corner of the walking beam 6 is hinged with the upper side of the left part of the frame 2. In the embodiment, the upper end of the connecting rod 11 is hinged with the lower side of the left part of the walking beam 6, and the swing amplitude of the walking beam 6 is not influenced by adjusting the installation position of the movable pulley 4. The relative operating position of the counterweight 12 after the adjustment stroke is not changed, and the corner of the walking beam 6 and the upper side of the left part of the frame 2 are hinged through a hinge seat which is known in the prior art according to requirements.

Example four: as shown in figure 1, two lifting ropes 15 with upper ends respectively bypassing the outer side of the horse head 7 and then being fixed on the upper side of the horse head 7 are arranged at the front and back intervals on the upper side of the balance weight 12. The lifting rope 15 is further arranged, a fixing bracket is convenient to arrange below the balance weight 12, and unloading protection of the balance weight 12 after the pumping unit loses load is facilitated.

Above technical feature constitutes the utility model discloses an embodiment, it has stronger adaptability and implements the effect, can increase and decrease unnecessary technical feature according to actual need, satisfies the demand of different situation.

Claims

1. The utility model provides a balanced double stroke beam-pumping unit of walking beam, a serial communication port comprises a base, a machine support, the fixed pulley, the movable pulley, the steel cable, walking beam and horse head, base upside fixed mounting has the frame, the frame right part upside rotates and installs the fixed pulley, the articulated walking beam of installing anti-L shape of frame left part upside that corresponds fixed pulley left position, walking beam right part upside is equipped with the movable pulley, the first end fixed connection of frame right part and steel cable is in the same place, the second end of steel cable is walked around in proper order and is moved the pulley left part outside, fixedly connected with rope hanger behind the fixed pulley right part outside, the articulated connecting rod of installing in walking beam left part lower side that corresponds frame left position, fixed mounting has the reduction gear on the base that corresponds frame left position, install driving motor on the base that corresponds the right-hand position of reduction gear, driving motor's drive shaft and the input shaft transmission of reduction gear are connected, the output shaft fixed mounting of reduction gear has the crank of being connected with the connecting rod lower extreme is articulated, the left end of corresponding connecting rod is fixed with the horse head, horse head left side fixedly connected with the balance weight.

2. The beam-balanced double-stroke pumping unit according to claim 1, wherein the front side of the right part of the beam is provided with a plurality of pairs of adjusting holes which are communicated from front to back at intervals up and down, the center of the movable pulley is fixedly provided with a rotating shaft, and two ends of the rotating shaft are rotatably arranged in one pair of the adjusting holes.

3. The beam-balanced double-stroke pumping unit as claimed in claim 1 or 2, wherein the upper end of the connecting rod is hinged with the lower side of the left part of the beam, and the corner of the beam is hinged with the upper side of the left part of the frame.

4. The beam-balanced double-stroke pumping unit according to claim 1 or 2, wherein the upper side of the counterweight is spaced from the front to the rear by two lifting ropes, the upper ends of which are fixed on the upper side of the horse head after bypassing the outer side of the horse head.

5. The beam-balanced double-stroke pumping unit as claimed in claim 3, wherein the upper side of the counterweight is spaced apart from the front and rear sides by two lifting ropes, the upper ends of which are fixed to the upper side of the horse head after bypassing the outer side of the horse head.