CN214467765U - Intermittent oil injection plunger pump and oil pumping unit - Google Patents

Intermittent oil injection plunger pump and oil pumping unit Download PDF

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Publication number
CN214467765U
CN214467765U CN202120405689.1U CN202120405689U CN214467765U CN 214467765 U CN214467765 U CN 214467765U CN 202120405689 U CN202120405689 U CN 202120405689U CN 214467765 U CN214467765 U CN 214467765U
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China
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oil
cylinder body
plunger rod
oil inlet
intermittent
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CN202120405689.1U
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刘平
李金刚
史乃昌
魏超勇
董剑
杨园园
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Pucheng Oil Production Plant Zhongyuan Oilfield Branch China Petrochemical Co ltd
China Petroleum and Chemical Corp
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Pucheng Oil Production Plant Zhongyuan Oilfield Branch China Petrochemical Co ltd
China Petroleum and Chemical Corp
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Abstract

The utility model provides an intermittent type oiling plunger pump and beam-pumping unit, intermittent type oiling plunger pump includes: a cylinder body; the lower end of the plunger rod extends into the cylinder body, and the upper end of the plunger rod is positioned outside the cylinder body; the piston is connected to the lower end of the plunger rod; the counterweight block is arranged at the top end of the plunger rod and is used for driving the plunger rod and the piston to move downwards under the action of self weight so as to enable the cylinder body to absorb or discharge oil; the permanent magnet or the armature is fixedly arranged on the balancing weight and used for being adsorbed and fixed with a safety device of the oil pumping unit or a moving pipe of an electric cylinder driving device so as to drive the balancing weight, the plunger rod and the piston to move upwards when the moving pipe moves upwards, and oil is discharged or absorbed from the cylinder body. The utility model provides a plunger pump can intermittent type oiling, avoids the oiling too much and causes lubricating oil to reveal. Meanwhile, the plunger rod moves upwards by virtue of the energy of the safety device or the electric cylinder driving device, and moves downwards by virtue of the dead weight of the balancing weight, so that the whole moving process is not driven by other electric equipment, and the energy consumption is reduced.

Description

Intermittent oil injection plunger pump and oil pumping unit
Technical Field
The utility model relates to a beam-pumping unit technical field, concretely relates to intermittent type oiling plunger pump and beam-pumping unit.
Background
Intelligence electric cylinder drive beam-pumping unit is novel intelligent beam-pumping unit, for example the energy storage subassembly suitable for beam-pumping unit that chinese utility model patent publication number of grant is CN209556987U, wherein disclose the beam-pumping unit including installation basal plane (be the base), support, energy storage subassembly (be safety device), supplementary jacking device (be electric cylinder drive arrangement) and walking beam. Wherein, safety device includes bracing piece and energy storage portion, and the bracing piece includes inner tube and outer tube, and the upper end of outer tube is connected the walking beam, is established on the inner tube after the lower extreme opening. The electric cylinder driving device comprises an electric cylinder inner tube, an electric cylinder outer tube, a servo motor and a ball screw, the bottom end of the electric cylinder inner tube is connected to the base, and the top end of the electric cylinder outer tube is connected to the walking beam. The servo motor drives the ball screw to rotate, the ball screw converts the rotating motion into linear motion, and the electric cylinder outer pipe is driven to move up and down (so that the electric cylinder outer pipe is a moving pipe), and the walking beam is driven to reciprocate up and down. When the safety device runs up and down on the walking beam, the outer pipe of the safety device moves up and down along with the walking beam (so that the outer pipe of the safety device is a movable pipe).
In order to ensure the stable rotation of the ball screw, a bearing is arranged in the electric cylinder driving device, the bearing needs to be lubricated by lubricating oil in the using process, and at present, the gear pump is adopted to inject the lubricating oil into the positions of the bearing and the ball screw in the prior art so as to meet the lubricating requirement.
However, in actual operation, the bearing position and the ball screw only need little lubricating oil to meet the requirements, and continuous oil injection of the gear pump not only easily causes leakage of the lubricating oil, but also consumes certain electric energy, so that a new oil injection scheme is necessary to be provided to solve the problem.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide an intermittent oil injection plunger pump to solve the problems that in the prior art, a gear pump is adopted to continuously inject oil to lubricate a bearing in an electric cylinder driving device, so that electric energy is consumed, and leakage is easily filled; an object of the utility model is to provide a beam-pumping unit to solve current beam-pumping unit and adopt the continuous oiling of gear pump to lubricate the bearing among the electric cylinder drive arrangement and lead to consuming the electric energy, and easily be full of the problem of revealing.
In order to achieve the above object, the utility model provides an intermittent type oiling plunger pump adopts following technical scheme:
an intermittent oil filling plunger pump comprising:
the oil pump comprises a cylinder body, a bearing, a motor, a transmission and a control device, wherein the cylinder body is fixed on a base of the oil pump, an oil inlet and an oil outlet are arranged on the cylinder body, the oil inlet is used for enabling the cylinder body to suck lubricating oil, and the oil outlet is used for enabling the cylinder body to discharge the lubricating oil so as to lubricate a bearing in an electric cylinder driving device of the oil pump;
the plunger rod can be vertically moved and is arranged on the cylinder body, the lower end of the plunger rod extends into the cylinder body, and the upper end of the plunger rod is positioned outside the cylinder body;
the piston is connected to the lower end of the plunger rod, the piston divides the inner cavity of the cylinder body into a rod cavity and a rodless cavity, and the oil inlet and the oil outlet are both positioned on one side of the rod cavity or both positioned on one side of the rodless cavity;
the counterweight block is arranged at the top end of the plunger rod and is used for driving the plunger rod and the piston to move downwards under the action of self weight so as to enable the cylinder body to absorb or discharge oil;
the permanent magnet or the armature is fixedly arranged on the balancing weight and used for being adsorbed and fixed with a moving pipe of a safety device of the oil pumping unit or an electric cylinder driving device so as to drive the balancing weight, the plunger rod and the piston to move upwards when the moving pipe moves upwards to enable the cylinder body to discharge oil or absorb oil, and the permanent magnet or the armature is also used for being separated from the moving pipe when the piston moves upwards to the limit position.
The beneficial effects of the above technical scheme are that: the arrangement of the cylinder body, the plunger rod and the piston enables the cylinder body to absorb oil through the oil inlet or discharge oil through the oil outlet when the plunger rod moves up and down so as to lubricate a bearing in the electric cylinder driving device; the top end of the plunger rod is provided with a balancing weight, the balancing weight is fixedly provided with a permanent magnet or an armature, and the permanent magnet or the armature is used for being adsorbed and fixed with a moving pipe of a safety device or an electric cylinder driving device of the oil pumping unit, so that when the moving pipe moves upwards, the balancing weight, the plunger rod and the piston can be driven to move upwards to discharge oil or absorb oil from the cylinder body, and when the piston moves upwards to a limit position, the permanent magnet or the armature can be separated from the moving pipe; after that, under the action of the dead weight of the counterweight block, the plunger rod and the piston can be pressed downwards to move downwards, so that the cylinder body absorbs oil or discharges oil.
Oil absorption and oil extraction of cylinder body have been realized through above process to the cylinder body only can the oil extraction at the in-process that the plunger rod upwards moved or the in-process that moves down, and another reverse movement process is then for the oil absorption, has consequently realized intermittent type oil extraction, also can realize intermittent type oiling for the plunger pump, avoids the oiling too much and causes lubricating oil to reveal.
Meanwhile, the upward movement of the plunger rod borrows the energy of a moving pipe of a safety device or an electric cylinder driving device, the moving pipe drives the balancing weight, the plunger rod and the piston to move upwards together when moving upwards through magnetic adsorption, the downward movement of the plunger rod depends on the self weight of the balancing weight, other electric equipment is not needed for driving in the whole moving process, and the energy consumption is reduced.
Furthermore, for convenient use, the intermittent oil filling plunger pump further comprises an oil inlet one-way valve and an oil outlet one-way valve which are installed on the cylinder body, the oil inlet one-way valve is communicated with the oil inlet, the oil outlet one-way valve is communicated with the oil outlet, and the intermittent oil filling plunger pump further comprises an oil inlet pipeline connected with the oil inlet one-way valve and an oil outlet pipeline connected with the oil outlet one-way valve.
Further, in order to prevent impurities from entering the cylinder, the intermittent oil filling plunger pump further comprises a filter connected to the oil inlet pipeline.
Furthermore, in order to facilitate the installation of the cylinder body and the arrangement of the filter, the intermittent oil injection plunger pump further comprises an installation support, the cylinder body is fixed on the top surface of the installation support, the filter is arranged in the installation support, and the installation support is used for being fixed on a base of the oil pumping unit.
Further, in order to enable the cylinder body to suck oil when the plunger rod descends, the oil inlet and the oil outlet are arranged at the top end of the cylinder body.
In order to achieve the above object, the utility model provides an oil pumping unit adopts following technical scheme:
the utility model provides a pumping unit, including the base and install safety device and electric cylinder drive arrangement on the base, safety device includes safety device inner tube and safety device outer tube, one of them removal pipe for can reciprocating in safety device inner tube and the safety device outer tube, electric cylinder drive arrangement includes the electric cylinder inner tube, the electric cylinder outer tube, ball and with ball pivoted fit's bearing, one of them second removal pipe for can reciprocating in electric cylinder inner tube and the electric cylinder outer tube, pumping unit still includes intermittent type oiling plunger pump, intermittent type oiling plunger pump includes:
the cylinder body is fixed on the base, an oil inlet and an oil outlet are formed in the cylinder body, the oil inlet is used for enabling the cylinder body to suck lubricating oil, and the oil outlet is used for enabling the cylinder body to discharge the lubricating oil so as to lubricate the bearing;
the plunger rod can be vertically moved and is arranged on the cylinder body, the lower end of the plunger rod extends into the cylinder body, and the upper end of the plunger rod is positioned outside the cylinder body;
the piston is connected to the lower end of the plunger rod, the piston divides the inner cavity of the cylinder body into a rod cavity and a rodless cavity, and the oil inlet and the oil outlet are both positioned on one side of the rod cavity or both positioned on one side of the rodless cavity;
the counterweight block is arranged at the top end of the plunger rod and is used for driving the plunger rod and the piston to move downwards under the action of self weight so as to enable the cylinder body to absorb or discharge oil;
the counterweight block and one of the first moving pipe or the second moving pipe is fixedly provided with a permanent magnet, the other one of the counterweight block and the first moving pipe or the second moving pipe is fixedly provided with an armature, the permanent magnet and the armature are used for being fixedly adsorbed when the first moving pipe or the second moving pipe is positioned at a down stroke dead point position so as to drive the counterweight block, the plunger rod and the piston to move upwards when the first moving pipe or the second moving pipe moves upwards, oil is discharged from the cylinder body or is absorbed, and the permanent magnet and the armature are further used for being separated from each other when the piston moves upwards to a limit position.
The beneficial effects of the above technical scheme are that: the arrangement of the cylinder body, the plunger rod and the piston enables the cylinder body to absorb oil through the oil inlet or discharge oil through the oil outlet when the plunger rod moves up and down so as to lubricate a bearing in the electric cylinder driving device; the top end of the plunger rod is provided with a balancing weight, one of the balancing weight and the first moving pipe or the second moving pipe is fixedly provided with a permanent magnet, the other one of the balancing weight and the first moving pipe or the second moving pipe is fixedly provided with an armature, and the permanent magnet and the armature are used for being adsorbed and fixed when the first moving pipe or the second moving pipe is positioned at a down stroke dead point position, so that when the first moving pipe or the second moving pipe moves upwards, the balancing weight, the plunger rod and the piston can be driven to move upwards, oil is discharged or absorbed by the cylinder body, and when the piston moves upwards to a limit position, the permanent magnet and the armature can be separated from each other; after that, under the action of the dead weight of the counterweight block, the plunger rod and the piston can be pressed downwards to move downwards, so that the cylinder body absorbs oil or discharges oil.
Oil absorption and oil extraction of cylinder body have been realized through above process to the cylinder body only can the oil extraction at the in-process that the plunger rod upwards moved or the in-process that moves down, and another reverse movement process is then for the oil absorption, has consequently realized intermittent type oil extraction, also can realize intermittent type oiling for the plunger pump, avoids the oiling too much and causes lubricating oil to reveal.
Meanwhile, the upward movement of the plunger rod borrows the energy of the first moving pipe or the second moving pipe, the first moving pipe or the second moving pipe drives the balancing weight, the plunger rod and the piston to move upwards together when moving upwards through magnetic adsorption, the downward movement of the plunger rod depends on the dead weight of the balancing weight, other electric equipment is not needed for driving in the whole moving process, and the energy consumption is reduced.
Furthermore, in order to facilitate use and simplify the structure, a lubricating oil path is circulated, the intermittent oil injection plunger pump further comprises an oil inlet check valve and an oil outlet check valve which are installed on the cylinder body, the oil inlet check valve is communicated with the oil inlet, the oil outlet check valve is communicated with the oil outlet, the intermittent oil injection plunger pump further comprises an oil inlet pipeline and an oil outlet pipeline, one end of the oil outlet pipeline is connected with the oil outlet check valve, the other end of the oil outlet pipeline extends into the electric cylinder driving device, one end of the oil inlet pipeline is connected with the oil inlet check valve, the other end of the oil inlet pipeline is communicated with the inner cavity of the electric cylinder inner pipe, the inner cavity of the electric cylinder inner pipe is used for collecting lubricating oil, and the electric cylinder outer pipe is the second movable pipe.
Further, in order to prevent impurities from entering the cylinder, the intermittent oil filling plunger pump further comprises a filter connected to the oil inlet pipeline.
Furthermore, in order to facilitate installation and use of the cylinder body and arrangement of the filter, the intermittent oil injection plunger pump further comprises an installation support, the cylinder body is fixed on the top surface of the installation support, the filter is arranged in the installation support, and the installation support is fixed on the base and located between the safety device and the electric cylinder driving device.
Further, in order to enable the cylinder body to suck oil when the plunger rod descends, the oil inlet and the oil outlet are arranged at the top end of the cylinder body.
Drawings
Fig. 1 is a schematic structural view of a pumping unit of the present invention;
fig. 2 is a structural diagram of an electric cylinder driving device of the oil pumping unit of the present invention;
FIG. 3 is an enlarged view taken at A in FIG. 1;
fig. 4 is a diagram showing the matching state between the safety device of the pumping unit and the intermittent oil injection plunger pump (the permanent magnet steel and the armature are in an adsorption state);
fig. 5 is a diagram showing the matching state of the safety device of the pumping unit and the intermittent oil injection plunger pump (the permanent magnet steel and the armature are in a separation state);
fig. 6 is a matching structure diagram among the safety device, the intermittent oil injection plunger pump and the electric cylinder driving device of the well oil pumping unit.
In the figure: 1-a base; 2-a walking beam support; 3-an electric cylinder drive; 301-electric cylinder inner tube; 302-electric cylinder outer pipe; 303-motor base; 304-a servo motor; 305-a connecting seat; 306-a bearing seat; 307-bearings; 308-ball screw; 309-nut seat; 4-a safety device; 401-safety device inner tube; 402-safety device outer tube; 403-an armature; 5-intermittent oil injection plunger pump; 501-cylinder body; 502-a plunger rod; 503-a piston; 504-a counterweight; 505-permanent magnet steel; 506-oil inlet one-way valve; 507-an oil outlet one-way valve; 508-oil inlet line; 509-flow line; 510-a mounting bracket; 511-a filter; 6-walking beam; 7-donkey head.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention, i.e., the described embodiments are only some, but not all embodiments of the invention. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiment of the present invention, all other embodiments obtained by the person skilled in the art without creative work belong to the protection scope of the present invention.
It is noted that relational terms such as "first" and "second," and the like, may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
The features and properties of the present invention are described in further detail below with reference to examples.
The utility model discloses embodiment 1 of well beam-pumping unit is as shown in figure 1, including base 1 and install safety device 4 and electric cylinder drive 3 on base 1, still install walking beam support 2 on the base 1, walking beam 6 articulates on walking beam support 2, safety device 4 and electric cylinder drive 3's top is articulated with walking beam 6 respectively, electric cylinder drive 3 is used for driving walking beam 6 and swings, and then makes the horse head 7 luffing motion of 6 tip of walking beam, and horse head 7 is used for driving oil pumping pipe and rises or descend in the oil well, realizes the oil pumping operation, and this part belongs to prior art, the utility model discloses in no longer too much introduce.
Referring to fig. 1, 4 and 5, the safety device 4 includes a safety device inner tube 401 and a safety device outer tube 402, the safety device inner tube 401 is hinged to the base 1, the safety device outer tube 402 is hinged to the walking beam 6, the safety device outer tube 402 is sleeved outside the safety device inner tube 401 and can move up and down along with the swinging of the walking beam 6, and therefore the safety device outer tube 402 serves as a first moving tube capable of moving up and down in this embodiment. Most of the structure and the theory of operation of safety device 4 all belong to prior art, the difference is, the utility model discloses a safety device 4 is still including fixing armature 403 in safety device outer tube 402 bottom, and armature 403 is fixed to be set up on first removal pipe.
The electric cylinder driving device 3 is a conventional product, and is, for example, a servo electric cylinder disclosed in patent document CN 208578554U. As shown in fig. 2, the electric cylinder driving apparatus 3 includes an electric cylinder inner tube 301, an electric cylinder outer tube 302, a motor base 303, a servo motor 304, a connecting base 305, a bearing base 306, a bearing 307, a ball screw 308, and a nut base 309, wherein a bottom end of the electric cylinder inner tube 301 is connected to the base 1, the nut base 309 is fixedly disposed at an upper port of the electric cylinder inner tube 301, and the ball screw 308 passes through the nut base 309 and is connected to the nut base 309 by a screw thread. The outer cylinder tube 302 is sleeved outside the inner cylinder tube 301, the bearing seat 306 is fixedly arranged at the top end of the outer cylinder tube 302, the bearing 307 is arranged in the bearing seat 306, and the ball screw 308 is in running fit with the bearing 307. The top of ball 308 is connected through the output shaft transmission of shaft coupling and servo motor 304, and servo motor 304 sets up in motor cabinet 303, and the top of motor cabinet 303 is articulated with walking beam 6, and connecting seat 305 fixed connection is between motor cabinet 303 and electric cylinder outer tube 302. In use, the servo motor 304 rotates the ball screw 308, and since the cylinder inner tube 301 and the nut holder 309 are fixed, the ball screw 308 rotates while moving the cylinder outer tube 302 up and down, thereby driving the walking beam 6 to swing up and down. Therefore, the outer cylinder tube 302 serves as a second moving tube that can move up and down in the present embodiment.
As shown in fig. 1, the pumping unit further includes an intermittent oil injection plunger pump 5, and as shown in fig. 4 and 5, the intermittent oil injection plunger pump 5 includes a cylinder 501, a plunger rod 502, a piston 503, a weight block 504, a permanent magnet 505, an oil inlet check valve 506, an oil outlet check valve 507, an oil inlet pipeline 508, an oil outlet pipeline 509, a mounting bracket 510, and a filter 511. Wherein the cylinder body 501 is fixed on the top surface of the mounting bracket 510, and the mounting bracket 510 is fixed on the base 1 and located between the safety device 3 and the electric cylinder driving device 4 (as shown in fig. 1 and 3). The cylinder 501 is provided with an oil inlet and an oil outlet (not labeled in the figure), which are disposed at the top end of the cylinder 501, wherein the oil inlet is used for enabling the cylinder 501 to suck lubricating oil, and the oil outlet is used for enabling the cylinder 501 to discharge the lubricating oil to lubricate the bearing 307.
The plunger rod 502 is mounted on the cylinder 501 to be movable up and down, and the lower end of the plunger rod 502 extends into the cylinder 501 and the upper end is located outside the cylinder 501. Piston 503 is connected to the lower end of plunger rod 502, piston 503 divides the inner cavity of cylinder 501 into rod cavity and rodless cavity, obviously, both oil inlet and outlet are located at one side of rod cavity.
An oil inlet one-way valve 506 and an oil outlet one-way valve 507 are installed on the cylinder body 501, the oil inlet one-way valve 506 is communicated with an oil inlet, and the oil outlet one-way valve 507 is communicated with an oil outlet. As shown in fig. 4, 5 and 6, one end of the oil outlet line 509 is connected to the oil outlet check valve 507, and the other end thereof extends into the interior of the electric cylinder driving apparatus through the connecting seat 305 of the electric cylinder driving apparatus, so as to lubricate the bearing 307. The one end and the oil feed check valve 506 of oil feed line 508 are connected, the other end is connected in electric cylinder drive arrangement's bottom, with the inner chamber intercommunication of electric cylinder inner tube 301, it needs to explain that, the inner chamber of electric cylinder inner tube 301 is used for collecting lubricating oil, and there is an oil circuit in electric cylinder drive arrangement's inside design, can make the lubricating oil of filling on the bearing 307 flow into the inner chamber of electric cylinder inner tube 301, because electric cylinder drive arrangement itself is current product, this part the utility model discloses in no longer describe in detail.
In addition, a filter 511 is connected to the oil feed line 508 for filtering impurities. As shown in fig. 4 and 5, the weight member 504 is screwed to the top end of the plunger rod 502, the permanent magnet steel 505 is embedded and fixed on the top surface of the weight member 504 as a permanent magnet, and the permanent magnet steel 505 is used for being adsorbed and fixed with the armature 403 at the bottom of the safety device outer tube 402.
The utility model discloses well beam-pumping unit's theory of operation is:
when the pumping unit is close to the top dead center position (i.e. the horse head 7 is at the uppermost position), the safety device outer tube 402 (i.e. the first moving tube) is at the down stroke dead center position, as shown in fig. 4, at this time, the armature 403 reaches the lowermost position along with the safety device outer tube 402 and is fixedly adsorbed with the permanent magnet steel 505, so that when the horse head 7 moves downwards, i.e. the safety device outer tube 402 moves upwards, the weight block 504, the plunger rod 502 and the piston 503 can be driven to move upwards together, and the piston 503 injects the lubricating oil in the cylinder body 501 into the required lubricating position in the electric cylinder driving device through the oil outlet check valve 507 and the oil outlet pipe 509.
When the piston 503 moves upwards to the limit position, because the limit position of the cylinder 501 does not move upwards any more, the armature 403 will be separated from the permanent magnet steel 505 and continue to move upwards until the horse head 7 reaches the lower dead point and then returns. As shown in fig. 5, after the permanent magnet 505 is separated from the armature 403, the counterweight 504 drives the plunger rod 502 and the piston 503 to move downward under the action of its own weight, and the lubricating oil in the inner cavity of the electric cylinder inner tube 301 is sucked into the cylinder 501 through the oil inlet pipeline 508 and the oil inlet check valve 506, so as to complete a process of oil discharge and oil suction.
In the process, the cylinder 501 discharges oil only in the process that the plunger rod 502 moves upwards, and the plunger rod 502 sucks oil when moving downwards, so that intermittent oil discharge is realized, namely intermittent oil injection can be realized by the plunger pump, and lubricating oil leakage caused by excessive oil injection is avoided. Meanwhile, the upward movement of the plunger rod 502 borrows the energy of the first moving pipe, the first moving pipe drives the balancing weight 504, the plunger rod 502 and the piston 503 to move upwards together when moving upwards through magnetic absorption, the downward movement of the plunger rod 502 depends on the self weight of the balancing weight 504, and the whole moving process does not need to be driven by other electric equipment, so that the energy consumption is reduced.
The utility model discloses an so set up the oil inlet and the oil-out of cylinder body on the top, make the plunger rod utilize the weight of balancing weight to move down and carry out the oil absorption, consider like this, on the weight of balancing weight was applyed the plunger rod, can make the plunger rod obtain a lower falling speed to slowly, stably inhale the cylinder body with lubricating oil in, if the speed is too fast, will unable effectual inhale lubricating oil.
To sum up, compare prior art, the utility model discloses an intermittent type oiling plunger pump simple structure, convenient to use, maintenance are simple and convenient, can be intermittent type with the required lubricated position of oil injection, have solved lubricated problem, the plunger pump need not to increase other power equipment drives in addition, has reduced energy consumption, and is further, there is "the electricity generation that falls" phenomenon in the initial stage of the pumping unit down stroke, the energy is useless, the utility model discloses a plunger pump converts the drive power of plunger pump with mechanical system with energy conversion, realizes energy recuperation and utilizes.
The utility model discloses embodiment 2 of well beam-pumping unit: different from the embodiment 1, the oil inlet and the oil outlet are arranged at the bottom end of the cylinder body, namely, both are positioned at one side of the rodless cavity, at the moment, the cylinder body absorbs oil when the plunger rod moves upwards, and the cylinder body discharges oil when the plunger rod moves downwards.
The utility model discloses embodiment 3 of well beam-pumping unit: in contrast to exemplary embodiment 1, the mounting bracket is not located between the safety device and the electric cylinder drive, but only beside the safety device, i.e. the mounting bracket, the safety device and the electric cylinder drive are arranged in a triangular manner.
The utility model discloses embodiment 4 of well beam-pumping unit: different from the embodiment 1, the intermittent oil filling plunger pump does not comprise a mounting bracket, the cylinder body of the intermittent oil filling plunger pump is directly fixed on the base, and the filter is also fixedly arranged on the base at the moment.
The utility model discloses embodiment 5 of well beam-pumping unit: unlike example 1, the intermittent oil filling plunger pump does not include a filter.
The utility model discloses embodiment 6 of well beam-pumping unit: different from the embodiment 1, the oil inlet one-way valve and the oil outlet one-way valve are not arranged on the cylinder body, the oil inlet of the cylinder body is directly connected with the oil inlet pipeline, the oil outlet of the cylinder body is directly connected with the oil outlet pipeline, and the oil inlet one-way valve and the oil outlet one-way valve are respectively connected with the oil inlet pipeline and the oil outlet pipeline.
The utility model discloses embodiment 7 of well beam-pumping unit: different from the embodiment 1, the oil inlet pipeline is not directly communicated with the inner cavity of the electric cylinder inner pipe, but is additionally provided with an oil storage barrel, lubricating oil in the electric cylinder inner pipe is pumped into the oil storage barrel through an oil pump, and the oil inlet pipeline is communicated with the oil storage barrel.
The utility model discloses embodiment 8 of well beam-pumping unit: different from the embodiment 1, the intermittent oil filling plunger pump does not comprise an oil inlet pipeline, an oil outlet pipeline, an oil inlet check valve and an oil outlet check valve, and the devices are self-configured after the intermittent oil filling plunger pump is purchased by a user.
The utility model discloses embodiment 9 of well beam-pumping unit: different from the embodiment 1, the bottom of the outer pipe of the safety device is fixed with permanent magnet steel, and the top of the balancing weight is fixed with an armature.
The utility model discloses embodiment 10 of well beam-pumping unit: unlike embodiment 1, a permanent magnet is used as the permanent magnet.
The utility model discloses embodiment 11 of well beam-pumping unit: different from embodiment 1, the permanent magnet or the armature is fixedly arranged on the outer tube (i.e. the second moving tube) of the electric cylinder, and the counterweight block is matched with the outer tube of the electric cylinder to be adsorbed and fixed at the moment.
The utility model discloses embodiment 12 of well beam-pumping unit: the difference with embodiment 1 is that safety device and electric jar drive arrangement are the installation of turning over respectively, and the safety device inner tube is first removal pipe this moment, and the electric jar inner tube is the second and removes the pipe, and the balancing weight adsorbs fixedly with safety device inner tube or the cooperation of electric jar inner tube.
The utility model discloses the embodiment of middle intermittent type oil injection plunger pump does: the specific structure of the intermittent oil filling plunger pump is the same as that of the intermittent oil filling plunger pump in the pumping unit embodiment, and the detailed description is omitted here.
The above description is only for the preferred embodiment of the present invention, and the present invention is not limited thereto, the protection scope of the present invention is defined by the claims, and all structural changes equivalent to the contents of the description and drawings of the present invention should be included in the protection scope of the present invention.

Claims (10)

1. An intermittent oiling plunger pump, comprising:
the oil pump comprises a cylinder body, a bearing, a motor, a transmission and a control device, wherein the cylinder body is fixed on a base of the oil pump, an oil inlet and an oil outlet are arranged on the cylinder body, the oil inlet is used for enabling the cylinder body to suck lubricating oil, and the oil outlet is used for enabling the cylinder body to discharge the lubricating oil so as to lubricate a bearing in an electric cylinder driving device of the oil pump;
the plunger rod can be vertically moved and is arranged on the cylinder body, the lower end of the plunger rod extends into the cylinder body, and the upper end of the plunger rod is positioned outside the cylinder body;
the piston is connected to the lower end of the plunger rod, the piston divides the inner cavity of the cylinder body into a rod cavity and a rodless cavity, and the oil inlet and the oil outlet are both positioned on one side of the rod cavity or both positioned on one side of the rodless cavity;
the counterweight block is arranged at the top end of the plunger rod and is used for driving the plunger rod and the piston to move downwards under the action of self weight so as to enable the cylinder body to absorb or discharge oil;
the permanent magnet or the armature is fixedly arranged on the balancing weight and used for being adsorbed and fixed with a moving pipe of a safety device of the oil pumping unit or an electric cylinder driving device so as to drive the balancing weight, the plunger rod and the piston to move upwards when the moving pipe moves upwards to enable the cylinder body to discharge oil or absorb oil, and the permanent magnet or the armature is also used for being separated from the moving pipe when the piston moves upwards to the limit position.
2. The intermittent oiling plunger pump of claim 1, further comprising an oil inlet check valve and an oil outlet check valve mounted on the cylinder body, the oil inlet check valve being in communication with the oil inlet, the oil outlet check valve being in communication with the oil outlet, the intermittent oiling plunger pump further comprising an oil inlet line connected to the oil inlet check valve and an oil outlet line connected to the oil outlet check valve.
3. The intermittent plunger pump of claim 2, further comprising a filter coupled to the oil feed line.
4. The intermittent oiling plunger pump of claim 3, further comprising a mounting bracket, wherein the cylinder body is fixed on the top surface of the mounting bracket, the filter is disposed in the mounting bracket, and the mounting bracket is configured to be fixed on the base of the pumping unit.
5. The intermittent oil filling plunger pump of any one of claims 1-4, wherein the oil inlet and the oil outlet are arranged at the top end of the cylinder body.
6. The utility model provides a pumping unit, including the base and install safety device and electric cylinder drive arrangement on the base, safety device includes safety device inner tube and safety device outer tube, one of them removal pipe for can reciprocating in safety device inner tube and the safety device outer tube, electric cylinder drive arrangement includes the electric cylinder inner tube, the electric cylinder outer tube, ball and with ball pivoted fit's bearing, one of them second removal pipe for can reciprocating in electric cylinder inner tube and the electric cylinder outer tube, a serial communication port, the pumping unit still includes intermittent type oiling plunger pump, intermittent type oiling plunger pump includes:
the cylinder body is fixed on the base, an oil inlet and an oil outlet are formed in the cylinder body, the oil inlet is used for enabling the cylinder body to suck lubricating oil, and the oil outlet is used for enabling the cylinder body to discharge the lubricating oil so as to lubricate the bearing;
the plunger rod can be vertically moved and is arranged on the cylinder body, the lower end of the plunger rod extends into the cylinder body, and the upper end of the plunger rod is positioned outside the cylinder body;
the piston is connected to the lower end of the plunger rod, the piston divides the inner cavity of the cylinder body into a rod cavity and a rodless cavity, and the oil inlet and the oil outlet are both positioned on one side of the rod cavity or both positioned on one side of the rodless cavity;
the counterweight block is arranged at the top end of the plunger rod and is used for driving the plunger rod and the piston to move downwards under the action of self weight so as to enable the cylinder body to absorb or discharge oil;
the counterweight block and one of the first moving pipe or the second moving pipe is fixedly provided with a permanent magnet, the other one of the counterweight block and the first moving pipe or the second moving pipe is fixedly provided with an armature, the permanent magnet and the armature are used for being fixedly adsorbed when the first moving pipe or the second moving pipe is positioned at a down stroke dead point position so as to drive the counterweight block, the plunger rod and the piston to move upwards when the first moving pipe or the second moving pipe moves upwards, oil is discharged from the cylinder body or is absorbed, and the permanent magnet and the armature are further used for being separated from each other when the piston moves upwards to a limit position.
7. The pumping unit of claim 6, wherein the intermittent filling plunger pump further comprises an oil inlet check valve and an oil outlet check valve mounted on the cylinder body, the oil inlet check valve is communicated with the oil inlet, the oil outlet check valve is communicated with the oil outlet, the intermittent filling plunger pump further comprises an oil inlet pipeline and an oil outlet pipeline, one end of the oil outlet pipeline is connected with the oil outlet check valve, the other end of the oil outlet pipeline extends into the electric cylinder driving device, one end of the oil inlet pipeline is connected with the oil inlet check valve, the other end of the oil inlet pipeline is communicated with the inner cavity of the electric cylinder inner pipe, the inner cavity of the electric cylinder inner pipe is used for collecting lubricating oil, and the electric cylinder outer pipe is the second movable pipe.
8. The pumping unit of claim 7, wherein the intermittent plunger pump further comprises a filter coupled to the oil feed line.
9. The pumping unit of claim 8, wherein the intermittent plunger pump further comprises a mounting bracket, the cylinder body is secured to a top surface of the mounting bracket, the filter is disposed within the mounting bracket, and the mounting bracket is secured to the base between the safety device and the electric cylinder drive.
10. The oil pumping unit of any one of claims 6-9, wherein the oil inlet and the oil outlet are arranged at the top end of the cylinder body.
CN202120405689.1U 2021-02-24 2021-02-24 Intermittent oil injection plunger pump and oil pumping unit Active CN214467765U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202120405689.1U CN214467765U (en) 2021-02-24 2021-02-24 Intermittent oil injection plunger pump and oil pumping unit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202120405689.1U CN214467765U (en) 2021-02-24 2021-02-24 Intermittent oil injection plunger pump and oil pumping unit

Publications (1)

Publication Number Publication Date
CN214467765U true CN214467765U (en) 2021-10-22

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN202120405689.1U Active CN214467765U (en) 2021-02-24 2021-02-24 Intermittent oil injection plunger pump and oil pumping unit

Country Status (1)

Country Link
CN (1) CN214467765U (en)

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