Numerical control hydraulic pumping unit

Abstract

The utility model discloses a numerical control hydraulic pumping unit, which relates to the technical field of pumping units and comprises a lower platform, a stand column, an upper platform, a transmission component and a remote numerical control component. The lower platform is arranged on a fixed surface; the lower end of the stand column is connected with the lower platform; the upper platform is fixedly arranged at the upper ends of the columns; the transmission assembly comprises an upper pulley mechanism, a movable pulley mechanism, a lower pulley mechanism, a balance rope group, an upper pull rope group, a lower pull rope group and a hydraulic driving part; the hydraulic driving part can drive the movable pulley mechanism to vertically move so as to correspondingly pull up or pull down the counterweight part through the upper pull rope group or the lower pull rope group, so that the sucker rod can move up or down; and the remote numerical control assembly is connected with the hydraulic driving part and can remotely control the action of the hydraulic driving part. According to the numerical control hydraulic pumping unit, energy consumption can be reduced, working efficiency can be improved, and potential safety hazards can be reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to pumping unit technical field especially relates to a numerical control hydraulic pumping unit. BACKGROUND

[0002] With the sustained exploitation of oil field, many shallow oil field is exhausted continuously, heavy oil well, low-yield and low-efficiency well, high water cut well and so on quantity continues to grow. The traditional beam pumping unit cannot meet the oil production operation demand of heavy oil well, low-yield and low-efficiency well, high water cut well and so on due to the large structure, high energy consumption, speed regulation difficulty and the inability to run at super slow speed and so on. In addition, the oil well is mostly in remote areas, and the working environment is extremely poor, which poses a great challenge to the on-site operating staff. SUMMARY

[0003] The utility model aims at providing a numerical control hydraulic pumping unit to solve the above-mentioned prior art problems, reduce energy consumption, improve work efficiency and reduce safety hazards.

[0004] To achieve the above object, the utility model provides the following scheme:

[0005] The utility model provides a numerical control hydraulic pumping unit, including lower platform, stand, upper platform, transmission assembly and remote numerical control assembly, lower platform is used for setting in fixed surface, the lower end of stand is connected with lower platform, upper platform is fixedly set in the upper end of stand, transmission assembly includes upper pulley mechanism, movable pulley mechanism, lower pulley mechanism, balance rope group, upper pull rope group, lower pull rope group and hydraulic drive part, the upper pulley mechanism is rotatably connected in the upper platform, movable pulley mechanism can be relative to the stand activity along the vertical, the lower pulley mechanism is rotatably connected in the lower platform, the hydraulic drive part is set in the stand and is transmission connection with movable pulley mechanism, the balance rope group is pressed in the upper side of upper pulley mechanism and both ends are placed in the both sides of stand, one end of balance rope group is used for fixedly connecting sucker rod, and the other end is fixedly connected with counterweight, one end of upper pull rope group is fixedly connected with upper platform or stand, and the other end is connected in counterweight, and upper pull rope group is pressed in movable pulley lower side portion and upper pulley mechanism upper side, one end of lower pull rope group is fixedly connected with upper platform or stand, and the other end is connected in counterweight, and lower pull rope group is pressed in movable pulley mechanism upper side portion and lower pulley mechanism lower side portion, the hydraulic drive part can drive movable pulley mechanism vertical movement, and the corresponding upper pull or lower pull of counterweight is carried out through upper pull rope group or lower pull rope group, so that the sucker rod can go up or go down, remote numerical control assembly is connected with the hydraulic drive part, and the action of the hydraulic drive part can be remotely controlled.

[0006] Preferably, the upper pulling rope set and the lower pulling rope set are provided with adjusting members at one end away from the counterweight, and the adjusting members can adjust the tension of the corresponding upper pulling rope set or lower pulling rope set.

[0007] Preferably, the counterweight rope set, the upper pulling rope set and the lower pulling rope set are all provided as single connection ropes, and each of the connection ropes is bent into two sections in parallel and symmetrically.

[0008] Preferably, the upper pulley mechanism comprises a first pulley set, a second pulley set and a third pulley set provided in sequence on the upper platform along the side close to the counterweight, the two sections of the counterweight rope set are in parallel and pressed against the first pulley set and the third pulley set, and the two sections of the upper pulling rope set are in parallel and pressed against the movable pulley mechanism, the second pulley set and the third pulley set.

[0009] Preferably, the lower pulley mechanism comprises a fourth pulley set and a fifth pulley set provided in sequence on the lower platform along the side close to the counterweight, and the two sections of the lower pulling rope set are in parallel and pressed against the movable pulley mechanism, the fourth pulley set and the fifth pulley set.

[0010] Preferably, the lower platform comprises a fixed base and a connecting platform, the connecting platform is slidingly connected to the fixed base along the horizontal direction, a guardrail is arranged on the connecting platform at the side of the counterweight and on the upper side of the upper platform, the lower end of the stand and the lower pulley mechanism are fixedly connected to the connecting platform, and the connecting platform can slide relative to the lower platform along the horizontal direction and can lock the relative position with the lower platform.

[0011] Preferably, the stand comprises a stand body and a ladder arranged outside the stand body, the upper end of the stand body is connected to the upper platform, and the lower end of the stand body is connected to the lower platform, a receiving cavity is arranged in the stand body, and a switch door capable of closing or opening the receiving cavity is arranged on one side of the stand body, the hydraulic drive member and the movable pulley mechanism are arranged in the receiving cavity, and the movable pulley mechanism is slidingly connected to the stand body along the vertical direction.

[0012] Preferably, a guide frame is arranged between the upper platform and the lower platform along the vertical direction, and the counterweight is slidingly connected to the guide frame along the vertical direction.

[0013] Preferably, the remote numerical control assembly comprises a controller, a hydraulic pump, a speed regulating valve, a counterbalance valve and an electromagnetic reversing valve, the hydraulic drive is arranged as a hydraulic cylinder, an oil inlet of the hydraulic pump is communicated with an oil tank, an oil outlet of the hydraulic pump is communicated with upper and lower cylinders of the hydraulic cylinder through a hydraulic pipeline in sequence through the speed regulating valve, the electromagnetic reversing valve and the counterbalance valve, and the upper and lower cylinders of the hydraulic cylinder are further capable of being communicated with the oil tank in sequence through the counterbalance valve and the electromagnetic reversing valve; the controller is in communication connection with the hydraulic pump and capable of controlling actions of the hydraulic pump; the controller is further in communication connection with the electromagnetic reversing valve and capable of controlling oil path flow direction in the electromagnetic reversing valve.

[0014] Preferably, the remote numerical control assembly further comprises a temperature monitoring device, a liquid level monitoring device, a pressure monitoring device, a cooling component and a heating component, which are all in communication connection with the controller, the temperature monitoring device is used for monitoring oil temperature in the oil tank, the liquid level monitoring device is used for monitoring oil quantity in the oil tank, the pressure monitoring device is arranged in the hydraulic pipeline and used for monitoring oil pressure, the cooling component is capable of cooling hydraulic oil in the oil tank, and the heating component is capable of heating hydraulic oil in the oil tank; the controller is capable of receiving and displaying monitoring information of the temperature monitoring device, the liquid level monitoring device and the pressure monitoring device, and the controller is capable of automatically or manually controlling actions of the hydraulic drive, the cooling component and the heating component.

[0015] The utility model discloses relative to prior art has obtained following technical effect:

[0016] The numerical control hydraulic oil pumping unit provided by the utility model is supported by the lower platform, the stand and the upper platform, the counterweight can be counterweighted according to the weight of the actual pumping rod, the counterweight and the pumping rod are in a balanced state through the balance rope group and the upper pulley mechanism, the hydraulic drive drives the movable pulley mechanism to move upwards, under the action of the lower pull rope group, the balance state of the pumping rod and the counterweight is destroyed, the counterweight moves downwards, and under the action of the balance rope group, the pumping rod is driven to move upwards, the hydraulic drive can also drive the movable pulley mechanism to move downwards, under the action of the upper pull rope group, the balance state of the pumping rod and the counterweight is destroyed, the counterweight moves upwards, and under the action of the gravity of the pumping rod, the pumping rod moves downwards, the energy consumption can be reduced by arranging the hydraulic drive to drive the movable pulley mechanism to move and utilizing the rolling of the upper pulley mechanism and the lower pulley mechanism to reduce the friction of the rope group, the hydraulic drive is driven by hydraulic pressure, the moving speed of the pumping rod can be adjusted through the hydraulic system, and the working efficiency is improved, the hydraulic drive can be remotely controlled through the remote numerical control assembly, real-time operation on site is not needed, and the safety hidden danger can be reduced. BRIEF DESCRIPTION OF DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed in the embodiments will be briefly introduced as follows. Obviously, the drawings in the following description only constitute some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained based on these drawings without creative labor.

[0018] Figure 1 The structural schematic diagram of the numerical control hydraulic oil pumping unit is provided for the embodiments of the present application.

[0019] Figure 2 The structural schematic diagram of the lower platform is provided for the embodiments of the present application.

[0020] Figure 3 The structural schematic diagram of the vertical column is provided for the embodiments of the present application.

[0021] Figure 4 The internal schematic diagram of the vertical column is provided for the embodiments of the present application.

[0022] Figure 5 The structural schematic diagram of the upper platform is provided for the embodiments of the present application.

[0023] Figure 6 The matching schematic diagram of the counterweight and the upper platform and the lower platform is provided for the embodiments of the present application.

[0024] Figure 7 The structural schematic diagram of the first pulley block is provided for the embodiments of the present application.

[0025] Figure 8 The cross-sectional schematic diagram of the first pulley block is provided for the embodiments of the present application.

[0026] Figure 9 The structural schematic diagram of the second pulley block is provided for the embodiments of the present application.

[0027] Figure 10 The cross-sectional schematic diagram of the second pulley block is provided for the embodiments of the present application.

[0028] Figure 11 The structural schematic diagram of the third pulley block is provided for the embodiments of the present application.

[0029] Figure 12 The cross-sectional schematic diagram of the third pulley block is provided for the embodiments of the present application.

[0030] Figure 13 The structural schematic diagram of the lower pulley mechanism (with a pulley box) is provided for the embodiments of the present application.

[0031] Figure 14 The structural schematic diagram of the lower pulley mechanism (with a pulley box) is provided for the embodiments of the present application. Figure 13a partial view of the fourth pulley set or the fifth pulley set according to the embodiment of the present application;

[0032] Figure 15 a partial view of the fourth pulley set or the fifth pulley set according to the embodiment of the present application;

[0033] Figure 16 a partial view of the fourth pulley set or the fifth pulley set according to the embodiment of the present application;

[0034] Figure 17 a partial view of the fourth pulley set or the fifth pulley set according to the embodiment of the present application;

[0035] Figure 18 a partial view of the fourth pulley set or the fifth pulley set according to the embodiment of the present application;

[0036] Figure 19 a partial view of the fourth pulley set or the fifth pulley set according to the embodiment of the present application;

[0037] Figure 20 a partial view of the fourth pulley set or the fifth pulley set according to the embodiment of the present application;

[0038] Figure 21 a partial view of the fourth pulley set or the fifth pulley set according to the embodiment of the present application;

[0039] Figure 22 a partial view of the fourth pulley set or the fifth pulley set according to the embodiment of the present application;

[0040] Figure 23 a partial view of the fourth pulley set or the fifth pulley set according to the embodiment of the present application; Figure 22 a partial view of the fourth pulley set or the fifth pulley set according to the embodiment of the present application;

[0041] Figure 24 a partial view of the fourth pulley set or the fifth pulley set according to the embodiment of the present application;

[0042] Figure 25 a partial view of the fourth pulley set or the fifth pulley set according to the embodiment of the present application;

[0043] Figure 26 a partial view of the fourth pulley set or the fifth pulley set according to the embodiment of the present application;

[0044] Figure 27 a partial view of the fourth pulley set or the fifth pulley set according to the embodiment of the present application; Figure 26 a partial view of the fourth pulley set or the fifth pulley set according to the embodiment of the present application;

[0045] Figure 28 a partial view of the fourth pulley set or the fifth pulley set according to the embodiment of the present application;

[0046] Figure 29 a partial view of the fourth pulley set or the fifth pulley set according to the embodiment of the present application;

[0047] Figure 30 is Figure 26 the internal schematic view of the adjusting member in the

[0048] Figure 31 The hydraulic system schematic view of the remote numerical control assembly provided by the embodiment of the utility model.

[0049] In the figure:

[0050] 1 - lower platform; 11 - fixed base; 12 - connecting platform; 13 - guide rail; 14 - pressing rod; 15 - pressing plate; 16 - lower guardrail; 17 - clamping seat;

[0051] 2 - stand; 21 - stand body; 22 - ladder stand; 23 - accommodating cavity; 24 - switch door;

[0052] 3 - upper platform; 31 - upper guardrail;

[0053] 4 - transmission assembly; 401 - upper pulley mechanism; 402 - movable pulley mechanism; 403 - lower pulley mechanism; 404 - balance rope group; 405 - upper pull rope group; 406 - lower pull rope group; 407 - hydraulic drive member; 408 - counterweight member; 409 - upper adjusting member; 410 - first pulley group; 411 - second pulley group; 413 - third pulley group; 414 - fourth pulley group; 415 - fifth pulley group; 416 - guide frame; 417 - pulley box; 418 - lower adjusting member; 419 - single-groove wheel; 420 - double-groove wheel; 421 - pulley shaft; 422 - shaft sleeve; 423 - elastic retainer ring; 424 - bearing; 425 - chuck; 426 - upper adjusting bolt; 427 - upper adjusting nut; 428 - upper support; 429 - upper adjusting plate; 430 - lower adjusting bolt; 431 - lower support; 432 - lower adjusting plate; 433 - guide wheel; 434 - connecting plate; 435 - connecting wheel;

[0054] 5 - remote numerical control assembly; 501 - hydraulic pump; 502 - speed regulating valve; 503 - counterbalance valve; 504 - electromagnetic reversing valve; 505 - temperature monitoring member; 506 - liquid level monitoring member; 507 - pressure monitoring member; 508 - cooling component; 509 - heating component; 510 - oil tank; 511 - sequence valve; 512 - check valve; 513 - circulating pump; 514 - filter; 515 - cooler. DETAILED DESCRIPTION

[0055] The technical solutions in the embodiments of the utility model will be apparently and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all the other embodiments obtained by the ordinary skilled in the art without creative labor fall within the scope of the utility model.

[0056] The utility model discloses a numerical control hydraulic oil pumping unit to solve the problems of the prior art, reduce energy consumption, improve work efficiency and reduce potential safety hazards.

[0057] In order to make the above-mentioned purposes, features and advantages of the utility model more apparent, easy to understand, the utility model will be further described in detail below with reference to the drawings and specific embodiments.

[0058] The embodiment provides a numerical control hydraulic oil pumping unit, please see Figure 1 , including lower platform 1, stand 2, upper platform 3, transmission assembly 4 and remote numerical control assembly 5;Lower platform 1 is used to set up in fixed surface;The lower end of stand 2 is connected with lower platform 1;Upper platform 3 is fixedly arranged on the upper end of stand 2;Transmission assembly 4 includes upper pulley mechanism 401, movable pulley mechanism 402, lower pulley mechanism 403, balance rope group 404, upper pull rope group 405, lower pull rope group 406 and hydraulic drive part 407;Upper pulley mechanism 401 is rotatably connected to upper platform 3, movable pulley mechanism 402 can be moved along the vertical direction relative to stand 2, lower pulley mechanism 403 is rotatably connected to lower platform 1, and hydraulic drive part 407 is arranged on stand 2 and is in transmission connection with movable pulley mechanism 402;Please see Figure 22 And Figure 23 , balance rope group 404 is crimped on the upper side of upper pulley mechanism 401 and both ends are placed on both sides of stand 2, one end of balance rope group 404 is used for fixedly connecting pumping rod, and the other end is fixedly connected with counterweight 408;One end of upper pull rope group 405 is fixedly connected with upper platform 3 or stand 2, such as upper platform 3, and the other end is connected to counterweight 408, and upper pull rope group 405 is crimped on the lower side of movable pulley and the upper side of upper pulley mechanism 401;One end of lower pull rope group 406 is fixedly connected with upper platform 3 or stand 2, such as stand 2, and the other end is connected to counterweight 408, and lower pull rope group 406 is crimped on the upper side of movable pulley mechanism 402 and the lower side of lower pulley mechanism 403;Hydraulic drive part 407 can drive movable pulley mechanism 402 to move vertically, so as to pull or pull down counterweight 408 through upper pull rope group 405 or lower pull rope group 406, so that pumping rod can go up or down;Remote numerical control assembly 5 is connected with hydraulic drive part 407 and can remotely control the action of hydraulic drive part 407.

[0059] The working principle is that the whole machine is supported by the lower platform 1, the column 2 and the upper platform 3; the counterweight 408 can be counterweighted according to the actual weight of the sucker rod, and the counterweight 408 and the sucker rod are in a balanced state through the balance rope group 404 and the upper pulley mechanism 401; the hydraulic driving part 407 drives the movable pulley mechanism 402 to move upward, and under the action of the lower pull rope group 406, the balance state of the sucker rod and the counterweight 408 is destroyed, so that the counterweight 408 moves downward, and under the action of the balance rope group 404, the sucker rod is driven to move upward; the hydraulic driving part 407 can also drive the movable pulley mechanism 402 to move downward, and under the action of the upper pull rope group 405, the balance state of the sucker rod and the counterweight 408 is destroyed, so that the counterweight 408 moves upward, and the sucker rod moves downward under the action of its own gravity; by setting the hydraulic driving part 407 to drive the movable pulley mechanism 402 to move, and using the rolling of the upper pulley mechanism 401 and the lower pulley mechanism 403 to reduce the friction of the rope group, the energy consumption can be reduced; and the hydraulic driving part 407 is driven by hydraulic pressure, so that the moving speed of the sucker rod can be adjusted by the hydraulic system, and the working efficiency is improved; and the hydraulic driving part 407 can be remotely controlled by the remote numerical control assembly 5, without the need for real-time operation on site, so that the safety hidden danger can be reduced.

[0060] Further, the balance rope group 404, the upper pull rope group 405 and the lower pull rope group 406 are all steel wire ropes.

[0061] In the optional solution of the embodiment, preferably, one end of the upper pull rope group 405 and the lower pull rope group 406 away from the counterweight 408 is provided with an adjusting part, and the adjusting part can adjust the tension of the corresponding upper pull rope group 405 or lower pull rope group 406; by setting the adjusting part at one end of the upper pull rope group 405 and the lower pull rope group 406, the tension of the rope group can be adjusted according to the demand, and the tension can be adjusted after the deformation of the rope group to meet the use demand.

[0062] Specifically, the adjusting part connected to one end of the upper pull rope group 405 is an upper adjusting part 409, which is fixedly connected to the upper platform 3, please refer to Figure 26 and Figure 27 The upper adjusting part 409 includes an upper adjusting bolt 426, an upper adjusting nut 427, an upper support 428 and an upper adjusting plate 429, wherein the upper adjusting bolt 426 is fixedly connected with the upper adjusting plate 429 through the upper support 428, the upper adjusting plate 429 is fixedly connected with one end of the upper pull rope group 405, the upper support 428 can be fixedly connected to the upper platform 3, the upper adjusting plate 429 can be slidably connected in the upper support 428, the upper adjusting nut 427 can be threadedly connected with the upper adjusting bolt 426, rotating the upper adjusting nut 427 drives the upper adjusting bolt 426 to drive the upper adjusting plate 429 to move linearly relative to the upper support 428, and then the upper pull rope group 405 can be driven to move to adjust the pre-tightening force of the upper pull rope group 405.

[0063] Specifically, the adjusting member connected with one end of the lower pull rope group 406 is a lower adjusting member 418 fixedly connected to the stand column 2, please refer to Figure 29 and Figure 30 The lower adjusting member 418 comprises a lower adjusting bolt 430, a lower support 431, a lower adjusting plate 432 and a guide wheel 433, the lower adjusting bolt 430 is fixedly connected with the lower support 431 and the lower adjusting plate 432, the lower adjusting plate 432 is provided with two guide wheels 433 arranged side by side, the upper pull rope group 405 is crimped to the two guide wheels 433 to realize connection, the lower support 431 can be fixedly connected to the stand column 2, the lower adjusting plate 432 can be slidably connected to the lower support 431, the lower adjusting bolt 430 can be threadedly connected with a lower adjusting nut, rotating the lower adjusting nut can drive the lower adjusting bolt 430 to drive the lower adjusting plate 432 to move linearly synchronously relative to the lower support 431, and in turn can drive the lower pull rope group 406 to move to adjust the pre-tightening force of the lower pull rope group 406.

[0064] In an optional solution of the embodiment, preferably, the balance rope group 404, the upper pull rope group 405 and the lower pull rope group 406 are all arranged as single connecting ropes, each connecting rope is arranged as two sections arranged side by side and symmetrically, so as to avoid the problem of unbalanced stress caused by processing error and installation error, and improve the carrying capacity.

[0065] In an optional solution of the embodiment, preferably, the upper pulley mechanism 401 comprises a first pulley group 410, a second pulley group 411 and a third pulley group 413 arranged in sequence on the upper platform 3 along the side close to the counterweight 408; please refer to Figure 24 The two sections of the balance rope group 404 are crimped side by side to the first pulley group 410 and the third pulley group 413, so that the balance rope group 404 can be stably connected to the counterweight 408 and the sucker rod on both sides of the stand column 2; please refer to Figure 25 The two sections of the upper pull rope group 405 are crimped side by side to the movable pulley mechanism 402, the second pulley group 411 and the third pulley group 413, the upper pull rope group 405 is supported by the second pulley group 411 and the third pulley group 413, and the upper pull rope group 405 can pull the counterweight 408 when the hydraulic driving member 407 drives the movable pulley mechanism 402 downward.

[0066] Specifically, please refer to 7、 Figure 8 、 Figure 18 and Figure 19 The first pulley group 410 comprises two single-groove pulleys 419 arranged side by side, the two single-groove pulleys 419 are both rotationally connected to a pulley shaft 421 through a shaft sleeve 422 and a bearing 424, and are axially limited by an elastic retaining ring 423, the two single-groove pulleys 419 can be used in cooperation with the two sections of the balance rope group 404 respectively, so as to improve stability and avoid interference between the two sections.

[0067] Specifically, please refer to 9, Figure 10 , Figure 20 and Figure 21 , the second pulley set 411 includes a double-groove pulley 420, which is rotatably connected to a pulley shaft 421 through a shaft sleeve 422 and a bearing 424, and is axially limited by an elastic retainer 423. The double-groove pulley 420 can be used with two sections of the upper pull rope set 405 respectively through the double grooves on the double-groove pulley 420, so as to improve stability and avoid interference between the two sections.

[0068] Specifically, please refer to 11 and Figure 12 , the third pulley set 413 includes a double-groove pulley 420 and two single-groove pulleys 419, the double-groove pulley 420 is arranged between the two single-groove pulleys 419, and the double-groove pulley 420 and the two single-groove pulleys 419 are rotatably connected to a pulley shaft 421 through a shaft sleeve 422 and a bearing 424, and are axially limited by an elastic retainer 423. The double-groove pulley 420 can be used with two sections of the upper pull rope set 405 respectively through the double grooves on the double-groove pulley 420, and the two single-groove pulleys 419 can be used with two sections of the balance rope set 404 respectively, so as to improve stability and avoid interference between the two sections.

[0069] In an optional solution of the embodiment, preferably, please refer to Figure 13 , Figure 14 and Figure 15 , the lower pulley mechanism 403 includes a fourth pulley set 414 and a fifth pulley set 415 arranged on the lower platform 1 in sequence from the side close to the counterweight 408, please refer to Figure 28 , two sections of the lower pull rope set 406 are arranged side by side and pressed on the movable pulley mechanism 402, the fourth pulley set 414 and the fifth pulley set 415; the lower pull rope set 406 is supported by the fourth pulley set 414 and the fifth pulley set 415, and when the hydraulic driving part 407 drives the movable pulley mechanism 402 downward, the lower pull rope set 406 can pull the counterweight 408.

[0070] Specifically, the fourth pulley set 414 and the fifth pulley set 415 each include two single-groove pulleys 419 arranged side by side, and the two single-groove pulleys 419 of each set are rotatably connected to a pulley shaft 421 through a shaft sleeve 422 and a bearing 424, and are axially limited by an elastic retainer 423. Each set can be used with two sections of the lower pull rope set 406 respectively through the two single-groove pulleys 419, so as to improve stability and avoid interference between the two sections; and the fourth pulley set 414 and the fifth pulley set 415 are arranged to facilitate the arrangement of the position and force transmission direction of the lower pull rope set 406, so as to save more labor.

[0071] Further, please refer to Figure 16 and Figure 17The dynamic pulley mechanism 402 comprises a double-groove pulley 420 and two single-groove pulleys 419, the double-groove pulley 420 is arranged between the two single-groove pulleys 419, the double-groove pulley 420 and the two single-groove pulleys 419 are rotationally connected to a pulley shaft 421 through a shaft sleeve 422 and a bearing 424, and are axially limited through an elastic retainer 423, the double groove on the double-groove pulley 420 can be used in cooperation with two sections of the upper pull rope set 405 respectively, the two single-groove pulleys 419 can be used in cooperation with two sections of the lower pull rope set 406 respectively, the stability is improved, and interference between the two sections is avoided.

[0072] Further, the first pulley set 410, the second pulley set 411, the third pulley set 413, the fourth pulley set 414, the fifth pulley set 415 and the dynamic pulley mechanism 402 are arranged in a pulley box 417 respectively, are rotationally arranged in the pulley box 417 through corresponding pulley shafts 421, the pulley box 417 surrounded by the first pulley set 410, the second pulley set 411 and the third pulley set 413 is detachably connected to the upper platform 3 through corresponding supports, the pulley box 417 surrounded by the fourth pulley set 414 and the fifth pulley set 415 is detachably connected to the lower platform 1 through corresponding supports, and the pulley box 417 surrounded by the dynamic pulley mechanism 402 is detachably connected to the hydraulic driving member 407 through a corresponding support; handles can be arranged on the pulley boxes 417, so as to facilitate the transfer operation of the pulley boxes 417.

[0073] Further, the upper side of the counterweight 408 is fixedly provided with a connecting plate 434, three connecting wheels 435 are arranged on the connecting plate 434, two connecting wheels 435 are symmetrically arranged, the balance rope set 404 is press-connected to the lower side of the two connecting wheels 435 in sequence, stable connection with the counterweight 408 is realized through the connecting wheels 435, the joints at both ends of the balance rope set 404 are connected to a collet 425 to realize closed-loop connection of the balance rope set 404, and the collet 425 is connected to the sucker rod; another connecting wheel 435 is arranged on the upper side of the middle of the two symmetric connecting wheels 435, the upper pull rope set 405 is press-connected to the lower side of the connecting wheel 435 to realize stable connection with the counterweight 408, the joints of the two sections of the upper pull rope set 405 are connected to the upper adjusting member 409 to realize closed-loop connection of the upper pull rope set 405; the lower pull rope set 406 is press-connected to the two guide wheels 433 of the lower adjusting member 418, and the joints of the two sections of the lower pull rope set 406 are fixedly connected to the connecting plate 434 to realize closed-loop connection of the lower pull rope set 406.

[0074] In an optional solution of the embodiment, preferably, please refer to Figure 2The lower platform 1 comprises a fixed base 11 and a connecting platform 12, the connecting platform 12 is slidably connected to the upper side of the fixed base 11, and the sliding connection between the connecting platform 12 and the fixed base 11 can adjust the pumping position and ensure the accurate relative position between the pumping rod and the oil well during pumping work; specifically, the fixed base 11 is provided with side-by-side angle iron guide rails 13, the connecting platform 12 is slidably connected to the angle iron guide rails 13, one side of the connecting platform 12 is provided with a clamping seat 17, the clamping seat 17 is connected to an external drive to realize the sliding drive of the connecting platform 12; and the angle iron guide rails 13 are provided with locking components, which can lock the relative position of the connecting platform 12 and the fixed base 11; specifically, the locking components can be provided as a pressing plate 15 and a pressing rod 14, after driving the whole numerical control hydraulic pumping unit to the accurate position, the pressing plate 15 is locked and pressed on the pressing rod 14 on both sides of the connecting platform 12, so as to ensure the position of the numerical control hydraulic pumping unit, and the pressing plate 15 is connected with the fixed base 11, so as to press the pressing rod 14 and fix the position of the connecting platform 12; wherein the fixed base 11 can be provided as a concrete base; specifically, the locking components can also adopt other structures, such as fixing the position of the connecting platform 12 and the fixed base 11 by bolts.

[0075] Further, the connecting platform 12 is provided with a guardrail below the weight 408, and the upper side of the upper platform 3 is also provided with a guardrail; the connecting platform 12 below the weight 408 is a lower guardrail 16, which can avoid the staff from standing below the weight 408 and reduce the safety hazard; please refer to Figure 5 The upper side of the upper platform 3 is an upper guardrail 31, which can protect the operation personnel from assembling and repairing and reduce the safety hazard.

[0076] Further, the lower end of the column 2 and the lower pulley mechanism 403 are fixedly connected to the connecting platform 12, the connecting platform 12 can slide relative to the lower platform 1 in the horizontal direction and can lock the relative position with the lower platform 1; the column 2, the upper platform 3 and the device thereon are driven by the connecting platform 12 to move synchronously, so as to adjust the position of the pumping rod.

[0077] In the optional scheme of the embodiment, preferably, please refer to Figure 3 and Figure 4, the column 2 includes a column body 21 and a ladder 22 arranged outside the column body 21, the upper end of the column body 21 is connected with the upper platform 3, and the lower end is connected with the lower platform 1; by arranging the ladder 22, it is convenient for the staff to climb and overhaul; the column body 21 is internally provided with a containing cavity 23, and one side of the column body 21 is provided with a switch door 24 capable of closing or opening the containing cavity 23; the hydraulic driving part 407 and the movable pulley mechanism 402 are arranged in the containing cavity 23, and the movable pulley mechanism 402 is vertically and slidingly connected to the column body 21; by arranging the hydraulic driving part 407 and the movable pulley mechanism 402 in the containing cavity 23, the overall space is saved, and the switch door 24 is arranged, so that it is convenient to close and protect and open and overhaul; wherein the movable pulley mechanism 402 is vertically and slidingly connected to the column 2 through pulleys on both sides, specifically, pulley boxes 417 on the outside of the movable pulley mechanism 402 are provided with pulleys on both sides, the inner wall of the containing cavity 23 of the column 2 is provided with a sliding rail, and the pulleys and the sliding rail are matched to realize the vertical sliding of the movable pulley mechanism 402.

[0078] In an optional solution of the embodiment, preferably, referring to Figure 6 , a guide frame 416 is vertically arranged between the upper platform 3 and the lower platform 1, and the counterweight 408 is vertically and slidingly connected to the guide frame 416; specifically, two guide frames 416 are fixedly arranged side by side between the upper platform 3 and the lower platform 1, the counterweight 408 is arranged between the two guide frames 416, and pulleys are arranged on both sides of the counterweight 408, and the pulleys and the guide frame 416 are slidingly matched to realize the vertical sliding connection.

[0079] In an optional solution of the embodiment, preferably, the fixed connection mode between the above-mentioned corresponding components can be a detachable connection mode realized by bolts or direct welding for fixation.

[0080] In an optional solution of the embodiment, preferably, referring to Figure 31 , the remote numerical control assembly 5 includes a controller, a hydraulic pump 501, a speed regulating valve 502, a counterbalance valve 503 and an electromagnetic reversing valve 504, the hydraulic driving part 407 is arranged as a hydraulic cylinder, an oil inlet of the hydraulic pump 501 is communicated with an oil tank 510, an oil outlet of the hydraulic pump 501 is communicated with upper and lower cylinders of the hydraulic cylinder through a hydraulic pipeline in sequence through the speed regulating valve 502, the electromagnetic reversing valve 504 and the counterbalance valve 503, and the upper and lower cylinders of the hydraulic cylinder can also be communicated with the oil tank 510 in sequence through the counterbalance valve 503 and the electromagnetic reversing valve 504; the controller is in communication connection with the hydraulic pump 501 and can control the action of the hydraulic pump 501; the controller is also in communication connection with the electromagnetic reversing valve 504 and can control the oil path flow direction in the electromagnetic reversing valve 504.

[0081] Specifically, when the lower cylinder of the hydraulic cylinder needs to be filled with hydraulic oil, the hydraulic cylinder will pump the hydraulic oil into the lower cylinder through the speed regulating valve 502, the P port and the B port of the electromagnetic reversing valve 504, and a one-way valve 512 in the counterbalance valve 503 under the electrical control of the controller, while the hydraulic oil in the upper cylinder flows back to the oil tank 510 through a sequence valve 511 in the counterbalance valve 503, the A port and the T port of the electromagnetic reversing valve 504; conversely, when the upper cylinder of the hydraulic cylinder needs to be filled with hydraulic oil, the electromagnetic reversing valve 504 is controlled to act, and the hydraulic cylinder will pump the hydraulic oil into the upper cylinder through the speed regulating valve 502, the P port and the A port of the electromagnetic reversing valve 504, and the other one-way valve 512 in the counterbalance valve 503 under the electrical control of the controller, while the hydraulic oil in the lower cylinder flows back to the oil tank 510 through the other sequence valve 511 in the counterbalance valve 503, the B port and the T port of the electromagnetic reversing valve 504; by setting the counterbalance valve 503, the hydraulic cylinder can be prevented from losing control and descending, and the oil can be allowed to flow freely when the oil cylinder moves, thereby ensuring the stability and safety of the system; by adjusting the flow through the speed regulating valve 502, the movement speed of the actuator can be controlled, and the flow stability can be maintained and not affected by load changes; the adjusting valve can be an electrically controlled speed regulating valve 502, and the movement speed can be changed through electrical control to meet the use requirements. When the hydraulic cylinder piston rod reaches the predetermined position, the electromagnetic reversing valve 504 can be triggered to reverse, and the controller can determine the stroke information of the hydraulic cylinder through the flow and pressure information of the hydraulic system to control the electromagnetic reversing valve 504 to reverse.

[0082] In an optional solution of the embodiment, preferably, referring to Figure 31 , the remote numerical control assembly 5 further comprises a temperature monitoring member 505, a liquid level monitoring member 506, a pressure monitoring member 507, a cooling component 508, and a heating component 509, which are all in communication connection with the controller. The temperature monitoring member 505 is used to monitor the oil temperature in the oil tank 510, the liquid level monitoring member 506 is used to monitor the oil amount in the oil tank 510, the pressure monitoring member 507 is arranged in the hydraulic pipeline and is used to monitor the oil pressure, the cooling component 508 can cool the hydraulic oil in the oil tank 510, and the heating component 509 can heat the hydraulic oil in the oil tank 510. The controller can receive and display the monitoring information of the temperature monitoring member 505, the liquid level monitoring member 506, and the pressure monitoring member 507, and can automatically or manually control the actions of the hydraulic driving member 407, the cooling component 508, and the heating component 509. Through monitoring the temperature of the oil tank 510, when the oil temperature in the oil tank 510 is too high, the cooling component 508 is started to cool; when the oil temperature is too low in winter, the heater is started to heat the oil for work; and through monitoring the liquid level and the hydraulic pressure of the oil tank 510 in the hydraulic system, the working information of the hydraulic system can be grasped in time, so that the reaction, early warning, or shutdown can be made in time.

[0083] Specifically, the temperature monitoring member 505, the liquid level monitoring member 506 and the pressure monitoring member 507 are arranged as sensors, and a flow sensor can also be arranged on the hydraulic pipeline so as to fully grasp the working information of the hydraulic system; the cooling component 508 comprises a circulating pump 513, a filter 514 and a cooler 515, and the hydraulic oil in the oil tank 510 is driven by the circulating pump 513 to pass through the filter 514 and the cooler 515 in sequence for filtration and cooling.

[0084] Further, the controller can be arranged as a mobile phone terminal or a computer terminal, remotely controls the hydraulic pumping unit, and can comprise operation, parameter setting, state display and alarm checking, etc.; the pumping unit can be controlled in automatic and manual modes, can drive the lifting, lowering and resetting of the hydraulic cylinder, and can simultaneously adjust the opening and closing temperature of the heating or cooling in the oil tank 510; the parameter setting interface can set and adjust the working pressure, flow, speed, etc. of the pumping unit according to the operation plan. The state display can remotely and real-timely check the system pressure, flow, temperature, heating and cooling of the pumping unit, and ensures that the pumping unit is in the normal working range. The alarm checking can display the abnormal working condition of the pumping unit, and timely controls and repairs the pumping unit.

[0085] The principle and implementation mode of the specific examples are described in the utility model, and the above embodiment is only used for helping to understand the method and core idea of the utility model; meanwhile, according to the idea of the utility model, the specific implementation mode and application range will be changed by the general technical personnel in the field. According to the above, the content of the specification should not be understood as the limitation of the utility model.

Claims

1. A numerically controlled hydraulic pumping unit characterized by: The utility model relates to a kind of oil pumping device, including: Lower platform, for setting in fixed surface; Column, the lower end of the column is connected with the lower platform; Upper platform, fixedly set in the upper end of the column; Transmission assembly, including upper pulley mechanism, movable pulley mechanism, lower pulley mechanism, balance rope group, upper pull rope group, lower pull rope group and hydraulic drive part;The upper pulley mechanism is rotatably connected to the upper platform, the movable pulley mechanism can be moved vertically relative to the column, the lower pulley mechanism is rotatably connected to the lower platform, and the hydraulic drive part is arranged on the column and is in transmission connection with the movable pulley mechanism;The balance rope group is pressed on the upper side of the upper pulley mechanism and both ends are placed on both sides of the column, one end of the balance rope group is used for fixedly connecting sucker rod, and the other end is fixedly connected with counterweight;One end of the upper pull rope group is fixedly connected with the upper platform or the column, and the other end is connected to the counterweight, and the upper pull rope group is pressed on the lower side of the movable pulley mechanism and the upper side of the upper pulley mechanism;One end of the lower pull rope group is fixedly connected with the upper platform or the column, and the other end is connected to the counterweight, and the lower pull rope group is pressed on the upper side of the movable pulley mechanism and the lower side of the lower pulley mechanism;The hydraulic drive part can drive the movable pulley mechanism to move vertically, so that the counterweight is pulled up or pulled down through the upper pull rope group or the lower pull rope group, so that the sucker rod can go up or down;And Remote numerical control assembly, connected with the hydraulic drive part, and can remotely control the action of the hydraulic drive part.

2. The numerically controlled hydraulic pumping unit of claim 1 wherein: The end of the upper pull rope group and the lower pull rope group away from the counterweight is provided with an adjusting member, and the adjusting member can adjust the tension of the upper pull rope group or the lower pull rope group.

3. The numerically controlled hydraulic pumping unit of claim 2 wherein: The balance rope group, the upper pull rope group and the lower pull rope group are all arranged as single connection rope, and each connection rope is arranged as two sections in parallel and symmetrically.

4. The numerically controlled hydraulic pumping unit of claim 3 wherein: The upper pulley mechanism includes first pulley group, second pulley group and third pulley group arranged in the upper platform in turn along the side close to the counterweight;The two sections of the balance rope group are pressed in parallel on the first pulley group and the third pulley group;The two sections of the upper pull rope group are pressed in parallel on the movable pulley mechanism, the second pulley group and the third pulley group.

5. The numerically controlled hydraulic pumping unit of claim 3 wherein: The lower pulley mechanism includes fourth pulley group and fifth pulley group arranged in the lower platform in turn along the side close to the counterweight, and the two sections of the lower pull rope group are pressed in parallel on the movable pulley mechanism, the fourth pulley group and the fifth pulley group.

6. The numerically controlled hydraulic pumping unit of claim 1 wherein: The lower platform includes fixed base and connecting platform, the connecting platform is slidably connected to the upper side of the fixed base along horizontal direction, and guardrail is arranged on the upper side of the upper platform and the lower side of the counterweight on the connecting platform;The lower end of the column and the lower pulley mechanism are fixedly connected to the connecting platform, and the connecting platform can slide relative to the lower platform along horizontal direction and can lock the relative position with the lower platform.

7. The numerically controlled hydraulic pumping unit of claim 1 wherein: The column comprises a column body and a ladder set outside the column body, the column body is connected with the upper platform at the upper end and connected with the lower platform at the lower end; a containing cavity is arranged in the column body, and a switch door capable of closing or opening the containing cavity is arranged on one side of the column body; the hydraulic drive and the movable pulley mechanism are arranged in the containing cavity, and the movable pulley mechanism is vertically and slidingly connected with the column body.

8. The numerically controlled hydraulic pumping unit of claim 1 wherein: A guide frame is vertically arranged between the upper platform and the lower platform, and the counterweight is vertically and slidingly connected with the guide frame.

9. The numerically controlled hydraulic pumping unit of claim 1 wherein: The remote numerical control assembly comprises a controller, a hydraulic pump, a speed regulating valve, a counterbalance valve and an electromagnetic reversing valve, the hydraulic drive is arranged as a hydraulic cylinder, an oil inlet of the hydraulic pump is communicated with an oil tank, an oil outlet of the hydraulic pump is communicated with upper and lower cylinders of the hydraulic cylinder through a hydraulic pipeline in sequence through the speed regulating valve, the electromagnetic reversing valve and the counterbalance valve, and the upper and lower cylinders of the hydraulic cylinder can also be communicated with the oil tank in sequence through the counterbalance valve and the electromagnetic reversing valve; the controller is in communication connection with the hydraulic pump and can control the action of the hydraulic pump; the controller is also in communication connection with the electromagnetic reversing valve and can control the oil path flow direction in the electromagnetic reversing valve.

10. The numerically controlled hydraulic pumping unit of claim 9 wherein: The remote numerical control assembly further comprises a temperature monitoring device, a liquid level monitoring device, a pressure monitoring device, a cooling component and a heating component which are all in communication connection with the controller, the temperature monitoring device is used for monitoring the oil temperature in the oil tank, the liquid level monitoring device is used for monitoring the oil amount in the oil tank, the pressure monitoring device is arranged in the hydraulic pipeline and is used for monitoring the oil pressure, the cooling component can cool the hydraulic oil in the oil tank, and the heating component can heat the hydraulic oil in the oil tank; the controller can receive and display the monitoring information of the temperature monitoring device, the liquid level monitoring device and the pressure monitoring device, and the controller can automatically or manually control the action of the hydraulic drive, the cooling component and the heating component.

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