CN111577221A - Safety digital oil pumping machine - Google Patents
Safety digital oil pumping machine Download PDFInfo
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- CN111577221A CN111577221A CN202010306099.3A CN202010306099A CN111577221A CN 111577221 A CN111577221 A CN 111577221A CN 202010306099 A CN202010306099 A CN 202010306099A CN 111577221 A CN111577221 A CN 111577221A
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- 238000005086 pumping Methods 0.000 title claims abstract description 38
- 239000000725 suspension Substances 0.000 claims abstract description 39
- 239000003638 chemical reducing agent Substances 0.000 claims abstract description 35
- 241001023788 Cyttus traversi Species 0.000 claims abstract description 13
- 238000012545 processing Methods 0.000 claims description 29
- 229910000831 Steel Inorganic materials 0.000 claims description 12
- 239000010959 steel Substances 0.000 claims description 12
- 238000006073 displacement reaction Methods 0.000 claims description 10
- 230000001939 inductive effect Effects 0.000 claims description 8
- 238000005192 partition Methods 0.000 claims description 5
- 238000006243 chemical reaction Methods 0.000 claims description 3
- 238000012423 maintenance Methods 0.000 abstract description 9
- 239000003129 oil well Substances 0.000 abstract description 4
- 238000013461 design Methods 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 11
- 230000008569 process Effects 0.000 description 11
- 238000005516 engineering process Methods 0.000 description 6
- 230000008859 change Effects 0.000 description 4
- 230000006698 induction Effects 0.000 description 3
- 230000000903 blocking effect Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000001012 protector Effects 0.000 description 1
- 230000035484 reaction time Effects 0.000 description 1
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/12—Methods or apparatus for controlling the flow of the obtained fluid to or in wells
- E21B43/121—Lifting well fluids
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B44/00—Automatic control systems specially adapted for drilling operations, i.e. self-operating systems which function to carry out or modify a drilling operation without intervention of a human operator, e.g. computer-controlled drilling systems; Systems specially adapted for monitoring a plurality of drilling variables or conditions
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B17/00—Pumps characterised by combination with, or adaptation to, specific driving engines or motors
- F04B17/03—Pumps characterised by combination with, or adaptation to, specific driving engines or motors driven by electric motors
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B47/00—Pumps or pumping installations specially adapted for raising fluids from great depths, e.g. well pumps
- F04B47/02—Pumps or pumping installations specially adapted for raising fluids from great depths, e.g. well pumps the driving mechanisms being situated at ground level
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B47/00—Pumps or pumping installations specially adapted for raising fluids from great depths, e.g. well pumps
- F04B47/14—Counterbalancing
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
- F04B49/06—Control using electricity
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D65/00—Parts or details
- F16D65/14—Actuating mechanisms for brakes; Means for initiating operation at a predetermined position
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D2121/00—Type of actuator operation force
- F16D2121/18—Electric or magnetic
- F16D2121/20—Electric or magnetic using electromagnets
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D2127/00—Auxiliary mechanisms
- F16D2127/02—Release mechanisms
- F16D2127/04—Release mechanisms for manual operation
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Manipulator (AREA)
Abstract
The invention relates to the technical field of pumping units, in particular to a safe digital pumping unit which comprises a rack, a base, a speed reducer, a horse head, a rope hanger, a walking beam, a support rod, a movable weight box and a suspension arm, wherein the rack is fixedly arranged on the upper side of the right part of the base, and the speed reducer with a main motor is fixedly arranged on the upper side of the left part of the base. The invention has simple and reliable structure and ingenious design, can realize the braking purpose that a manual brake and an electric brake are not mutually influenced by arranging the left long round hole and the right long round hole, can touch the brake travel switch when the manual brake is killed, can cut off the power supply of the electric brake during the period, and can not start the main motor at the same time, can adjust the position of the movable weight box according to the oil well condition by arranging the movable weight box and the driving device, has the characteristics of safety and reliability, is simple to operate and convenient to install, can fixedly install the supporting rod and the supporting seat together during maintenance, saves the auxiliary operation of a crane, and reduces the maintenance cost.
Description
Technical Field
The invention relates to the technical field of oil pumping units, in particular to a safe digital oil pumping unit.
Background
The existing beam-pumping unit mainly comprises: the walking beam type pumping unit generally comprises a horse head, a walking beam, a support, a connecting rod, a base, a crank, a balancing device, a speed reducer, a brake, a motor and a rope hanger, wherein the support, the speed reducer, the brake, the motor, the control cabinet and the like are fixedly mounted on the base; the balance device is arranged on the crank or/and is arranged on the walking beam, and the balance is adjusted by manually adding or subtracting the mass of the counterweight to change the balance moment; or/and, the balance moment is changed by manually moving the position of the counterweight to adjust the balance; however, with the continuous deepening of the digital oil field construction in China, the requirements on the aspects of unattended well sites and automatic control of the pumping unit are continuously improved, and the original beam pumping unit has two defects: firstly, the emergency braking of the pumping unit during start-stop and load loss can not be controlled remotely, an operator is required to stop and brake at a well site in the using process, and manpower and material resources are wasted in the working process, so that an electric control braking and protecting device is developed to facilitate safe production and management; secondly, the existing automatic balancing device is complex to install and inconvenient to operate, the balance cannot be adjusted in time according to the change of the oil well load, the reaction time is slow, and the balance rate is low; and thirdly, in the maintenance process, the crane is required to perform auxiliary operation, so that the maintenance cost is high.
Disclosure of Invention
The invention provides a safe digital oil pumping unit, overcomes the defects of the prior art, and can effectively solve the problems of poor safety, complex installation and high maintenance cost of the conventional safe digital oil pumping unit.
The technical scheme of the invention is realized by the following measures: a safe digital oil pumping machine comprises a frame, a base, a speed reducer, a horse head, a rope hanger, a walking beam, a support rod, a movable weight box and a suspension arm, wherein the frame is fixedly installed on the upper side of the right part of the base, the speed reducer with a main motor is fixedly installed on the upper side of the left part of the base, an input shaft with the front end positioned on the front side of the speed reducer is arranged on the left part of the speed reducer, a brake wheel is fixedly installed on the front end of the input shaft, a brake drum matched with the brake wheel is installed on the outer side of the input shaft corresponding to the position between the brake wheel and the speed reducer, a brake pull rod capable of driving the brake drum to lock the brake shaft by swinging downwards is installed on the brake drum, a brake handle is fixedly installed on the left end of the brake pull rod, a left long round hole and a right round hole which are vertically arranged are arranged in a, the front side of the left slide block is installed with the upper end of a manual brake device, a right slide block which can move up and down in the inner side of the right long circular hole and the front end and the rear end of which are respectively positioned at the front side and the rear side of a brake handle is arranged in the right long circular hole, the front side of the right slide block is installed with the upper end of an electric brake pull rod, the lower end of the electric brake pull rod is fixedly provided with an electric control brake protection device which can drive the brake handle to stop the pumping unit, the electric control brake protection device is electrically connected with a control module which can monitor the rotating speed of a brake wheel and can drive the electric control brake protection device to act, the upper side of a rack is hinged with the lower side of the middle part of a walking beam, the lower side of the left part of the walking beam is fixedly provided with a support seat, the left side of the upper part of the rack is hinged with, a rope hanger is arranged below the horse head, the rope hanger is connected with the right side of the horse head through a right steel wire rope, a suspension arm which is inclined in a left-low-right-high shape is fixedly installed at the left end of a walking beam corresponding to the left position of the rack, a saddle-shaped movable weight box is installed in the middle of the suspension arm, and a driving device which can enable the movable weight box to move left and right is fixedly installed at the upper side of the right part of the suspension arm corresponding to the upper right position of the movable weight box.
The following is further optimization or/and improvement of the technical scheme of the invention:
the movable weight box comprises a front movable box, a fixed box and a rear movable box, wherein the front side and the rear side of the suspension arm are respectively provided with the front movable box and the rear movable box, the upper side of the front movable box is fixedly provided with the fixed box with the lower side parallel to the upper side of the suspension arm, the lower side of the rear part of the fixed box is fixedly arranged with the upper side of the rear movable box, the rear side of the front movable box is provided with at least two front rollers which are in contact with the front upper side of the suspension arm at intervals, and the front side of the rear movable box is provided with at least two rear rollers which are in contact with the upper side of the.
The driving device can comprise a worm gear reducer with a balance motor, a front axle seat, a rear axle seat, a steel wire rope reel and a left steel wire rope, a worm gear reducer with a balance motor is fixedly mounted on the upper right side of the suspension arm, a front axle seat and a rear axle seat are fixedly mounted on the front side and the rear side of the upper side of the suspension arm corresponding to the rear position of the left part of the worm gear reducer at intervals, the left part of the worm gear reducer is provided with an output shaft, the rear end of the output shaft penetrates through the front axle seat and is mounted in the right axle seat, a steel wire rope reel is fixedly mounted on the outer side of the output shaft corresponding to the position between the front axle seat and the rear axle seat, a hanging ring is fixedly mounted on the right side of the.
The upper side of the left part of the base is fixedly provided with a control cabinet, and a central processor, a frequency converter, a start-stop control relay, a main motor variable frequency alternating current contactor, a main motor power frequency alternating current contactor, a balance adjusting control relay, a balance motor alternating current contactor and a current transmitter are fixedly arranged in the control cabinet; a load sensor is fixedly arranged on the rope suspension device, angular displacement sensors are arranged on articulated shafts at the lower side of the middle part of the walking beam and the upper side of the rack, a lower limit switch is fixedly arranged at the position corresponding to the front side of the suspension arm at the left position of the front movable box, an upper limit switch is fixedly arranged at the position corresponding to the front side of the suspension arm at the right position of the front movable box, the signal output end of the load sensor is electrically connected with the first signal input end of the central processing unit, the signal output end of the angular displacement sensor is electrically connected with the second signal input end of the central processing unit, the signal output ends of the lower limit switch and the upper limit switch are electrically connected with the third signal input end of the central processing unit, the signal output end of the lower limit switch, the signal output end of the upper limit switch and the first signal output end of the central processing unit are electrically, the signal output end of the balance adjusting control relay is electrically connected with the signal input end of the balance motor alternating current contactor, the output end of the balance motor alternating current contactor is respectively electrically connected with the signal input end of the current transmitter and the signal input end of the balance motor, the signal output end of the current transmitter is electrically connected with the fourth signal input end of the central processing unit, the second signal output end of the central processing unit is electrically connected with the signal input end of the start-stop control relay, the signal output end of the start-stop control relay is respectively electrically connected with the signal input end of the main motor power frequency alternating current contactor and the signal input end of the main motor variable frequency alternating current contactor, the signal output end of the main motor power frequency alternating current contactor and the signal output end of the main motor variable frequency alternating current contactor are both electrically connected with the signal input end of the main motor, and the third signal output end of the central processing unit is electrically connected with the, the signal output end of the frequency converter is electrically connected with the signal input end of the main motor variable-frequency alternating current contactor.
The electric control brake protection device can comprise an armature, a reset spring, a force limiter and an electromagnet, wherein the lower end of an electric brake pull rod is fixedly installed together with the upper end of the force limiter, the electromagnet is fixedly installed below the force limiter, the armature matched with the electromagnet is arranged in the electromagnet, the upper end of the armature is fixedly installed together with the lower end of the force limiter, the reset spring with the upper end fixedly installed together with the lower end of the force limiter is sleeved on the outer side of the armature, the lower end of the reset spring is fixedly installed together with the upper end of the electromagnet, and the signal input end of the electromagnet is electrically connected with the signal output end of a control module which can enable the electromagnet to.
The control module can comprise a speed measurer and a counter, at least two rim grooves used for counting are formed in the edge of the outer side of the brake wheel along the circumference, the speed measurer facing the rim grooves is fixedly installed on the outer side of the brake wheel, the signal output end of the speed measurer is electrically connected with the signal input end of the counter, and the signal output end of the counter is electrically connected with the fifth signal input end of the central processing unit, the signal input end of the frequency converter and the signal input end of the electromagnet respectively.
The manual brake device further comprises an induction switch, the induction switch capable of detecting whether the manual brake device is in a brake or non-brake state is fixedly arranged below the manual brake device, and the output end of the induction switch is electrically connected with the input end of the counter.
The movable box is characterized in that a partition plate can be fixed in the front movable box, the front movable box is divided into a fixed counterweight cavity and a movable counterweight cavity, a fixed counterweight is filled in the fixed counterweight cavity, a movable counterweight block is installed in the movable counterweight cavity, a safety stop lever capable of blocking the movable counterweight block is fixedly installed on the front movable box, and the rear movable box and the front movable box are identical in structure and are symmetrically arranged.
The invention has simple and reliable structure and ingenious design, can realize the braking purpose that a manual brake and an electric brake are not mutually influenced by arranging the left long round hole and the right long round hole, can touch the brake travel switch when the manual brake is killed, can cut off the power supply of the electric brake during the period, and can not start the main motor at the same time, can adjust the position of the movable weight box according to the oil well condition by arranging the movable weight box and the driving device, has the characteristics of safety and reliability, is simple to operate and convenient to install, can fixedly install the supporting rod and the supporting seat together during maintenance, saves the auxiliary operation of a crane, and reduces the maintenance cost.
Drawings
FIG. 1 is a schematic front view of the present invention.
Fig. 2 is a partially enlarged top view of fig. 1.
Fig. 3 is a block diagram of the circuit configuration of fig. 1.
The codes in the figures are respectively: 1 is a frame, 2 is a base, 3 is a horse head, 4 is a rope hanger, 5 is a walking beam, 6 is a suspension arm, 7 is a main motor, 8 is an input shaft, 9 is a brake wheel, 10 is a brake pull rod, 11 is a brake handle, 12 is a left slide block, 13 is a right slide block, 14 is a manual brake device, 15 is an electric brake pull rod, 16 is a link mechanism, 17 is an output shaft, 18 is a front movable box, 19 is a fixed box, 20 is a front roller, 21 is a partition plate, 22 is a movable counter weight, 23 is a safety gear lever, 24 is a balance motor, 25 is a front shaft seat, 26 is a rear shaft seat, 27 is a steel wire rope reel, 28 is a left steel wire rope, 29 is a hanging ring, 30 is a steel wire rope chuck, 31 is an armature, 32 is a return spring, 33 is a force limiter, 34 is an electromagnet, 35 is a speed measurer, 36 is a counter, 37 is an inductive switch, 38 is a load sensor, 39 is a sensor, 40 is an upper, 41 is a lower limit switch, 42 is a right steel wire rope, 43 is a central processing unit, 44 is a frequency converter, 45 is a start-stop control relay, 46 is a main motor frequency conversion alternating current contactor, 47 is a main motor power frequency alternating current contactor, 48 is a balance adjusting control relay, 49 is a balance motor alternating current contactor, 50 is a current transmitter, 51 is a support rod, and 52 is a support seat.
Detailed Description
The present invention is not limited by the following examples, and specific embodiments may be determined according to the technical solutions and practical situations of the present invention.
In the present invention, for convenience of description, the description of the relative positional relationship of the components is described according to the layout pattern of fig. 1 of the specification, such as: the positional relationship of front, rear, upper, lower, left, right, etc. is determined in accordance with the layout direction of the drawings of the specification.
The invention is further described with reference to the following examples and figures:
as shown in the accompanying drawings 1, 2 and 3, the safe digital oil pumping unit comprises a rack 1, a base 2, a speed reducer, a horse head 3, a rope hanger 4, a walking beam 5, a support rod 51, a movable weight box and a suspension arm 6, wherein the rack 1 is fixedly installed on the upper side of the right part of the base 2, the speed reducer with a main motor 7 is fixedly installed on the upper side of the left part of the base 2, an input shaft 8 with the front end positioned at the front side of the speed reducer is arranged at the left part of the speed reducer, a brake wheel 9 is fixedly installed at the front end of the input shaft 8, a brake drum matched with the input shaft 8 is installed on the outer side of the input shaft 8 corresponding to the position between the brake wheel 9 and the speed reducer, a brake pull rod 10 capable of driving the brake drum to lock the brake shaft by swinging downwards is installed on the brake drum, a brake handle 11 is fixedly installed at the left end of the brake pull rod 10, a left long round hole and a right round hole which are The front side of a left slide block 12 is installed with the upper end of a manual brake device 14, a right slide block 13 which can move up and down in the right long circular hole and the front and back ends of which are respectively positioned at the front and back sides of a brake handle 11 is arranged in the right long circular hole, the front side of the right slide block 13 is installed with the upper end of an electric brake pull rod 15, the lower end of the electric brake pull rod 15 is fixedly provided with an electric control brake protection device which can drive the brake handle 11 to stop the pumping unit, the electric control brake protection device is electrically connected with a control module which can monitor the rotating speed of a brake wheel 9 and can drive the electric control brake protection device to act, the upper side of a rack 1 is hinged with the lower side of the middle part of a walking beam 5, the lower side of the left part of the walking beam 5 is fixedly provided with a support seat 52, the left side of the upper part of the rack 1 is hinged with a support rod 51 the upper, the right end of the walking beam 5 corresponding to the right position of the rack 1 is fixedly provided with a horse head 3, a rope hanger 4 is arranged below the horse head 3, the rope hanger 4 is connected with the right side of the horse head 3 through a right steel wire rope 42, the left end of the walking beam 5 corresponding to the left position of the rack 1 is fixedly provided with a suspension arm 6 which is inclined in a left-low-right high shape, the middle part of the suspension arm 6 is provided with a saddle-shaped movable weight box, and the upper side of the right part of the suspension arm 6 corresponding to the upper right position of the movable weight box is fixedly provided with a driving device which can enable. According to the requirement, the suspension arm 6 always inclines in a shape of being low at the left and high at the right. In the use, through setting up left slotted hole and right slotted hole, can realize the brake purpose that manual brake and electric brake do not influence each other, when manual brake kills, will touch brake travel switch, electric brake will cut off the power supply during this period, and main motor 7 will not start simultaneously. Through setting up portable weight box and drive arrangement, can adjust the position of portable weight box according to the oil well condition, have safe and reliable's characteristics, easy operation, simple to operate, when adjusting the stroke, with bracing piece 51 upper end and supporting seat 52 fixed mounting together, make walking beam 5 and frame 1 fixed together, save crane auxiliary operation, reduce the maintenance cost.
The safety digital oil pumping unit can be further optimized or/and improved according to actual needs:
as shown in fig. 1 and 2, the movable weight box comprises a front movable box 18, a fixed box 19 and a rear movable box, wherein the front side and the rear side of the suspension arm 6 are respectively provided with the front movable box 18 and the rear movable box, the upper side of the front movable box 18 is fixedly provided with the fixed box 19 with the lower side parallel to the upper side of the suspension arm 6, the lower side of the rear part of the fixed box 19 is fixedly arranged with the upper side of the rear movable box, the left side and the right side of the rear side of the front movable box 18 are provided with at least two front rollers 20 with rims in contact with the upper side of the front part of the suspension arm 6 at intervals, and the left side and the right side of the front movable box. In the use, through setting up preceding gyro wheel 20 and back gyro wheel, can be better play support and guide effect.
As shown in fig. 1 and 2, the driving device includes a worm gear reducer with a balance motor 24, a front axle seat 25, a rear axle seat 26, a wire rope reel 27 and a left wire rope 28, the worm gear reducer with the balance motor 24 is fixedly installed on the upper side of the right portion of the suspension arm 6, the front axle seat 25 and the rear axle seat 26 are fixedly installed on the upper side of the suspension arm 6 corresponding to the rear position of the left portion of the worm gear reducer at intervals in the front-rear direction, the left portion of the worm gear reducer is provided with an output shaft 17 with the rear end penetrating through the front axle seat 25 and installed in the right axle seat, the wire rope reel 27 is fixedly installed on the outer side of the output shaft 17 corresponding to the position between the front axle seat 25 and the rear axle seat 26, the right side of the fixing box 19 is fixedly installed with a hanging ring 29, one end of the. In the using process, the reducer with the balance motor 24 rotates forwards or backwards to drive the steel wire rope reel 27 to rotate, and the left steel wire rope 28 drives the fixed box 19 to move left and right on the suspension arm 6, so that the change of the suspension point load in the pumping process is balanced.
As shown in fig. 1, 2 and 3, a control cabinet is fixedly installed on the upper side of the left part of the base 2, and a central processor 43, a communication module, a power module, a display module, an electric quantity module, a three-phase electric parameter acquisition device, a control panel, a motor comprehensive protector, a frequency converter 44, a start-stop control relay 45, a main motor frequency conversion ac contactor 46, a main motor power frequency ac contactor 47, a balance adjustment control relay 48, a balance motor ac contactor 49 and a current transducer 50 are fixedly installed in the control cabinet; a load sensor 38 is fixedly arranged on the rope suspension device 4, an angular displacement sensor 39 is arranged on a hinged shaft at the lower side of the middle part of the walking beam 5 and the upper side of the frame 1, a lower limit switch 41 is fixedly arranged at the position corresponding to the front side of the suspension arm 6 at the left position of the front movable box 18, an upper limit switch 40 is fixedly arranged at the position corresponding to the front side of the suspension arm 6 at the right position of the front movable box 18, the signal output end of the load sensor 38 is electrically connected with the first signal input end of the central processing unit 43, the signal output end of the angular displacement sensor 39 is electrically connected with the second signal input end of the central processing unit 43, the signal output ends of the lower limit switch 41 and the upper limit switch 40 are electrically connected with the third signal input end of the central processing unit 43, the signal output end of the lower limit switch 41, the signal output end of the upper limit switch 40 and the first signal output end of the central processing unit 43, the signal output end of the balance adjusting control relay 48 is electrically connected with the signal input end of the balance motor AC contactor 49, the output end of the balance motor AC contactor 49 is electrically connected with the signal input end of the current transducer 50 and the signal input end of the balance motor 24 respectively, the signal output end of the current transducer 50 is electrically connected with the fourth signal input end of the central processing unit 43, the second signal output end of the central processing unit 43 is electrically connected with the signal input end of the start-stop control relay 45, the signal output end of the start-stop control relay 45 is electrically connected with the signal input end of the main motor power frequency AC contactor 47 and the signal input end of the main motor variable frequency AC contactor 46 respectively, the signal output end of the main motor power frequency AC contactor 47 and the signal output end of the main motor variable frequency AC contactor 46 are electrically connected with the signal input end of the main motor 7, the third signal output terminal of the cpu 43 is electrically connected to the signal input terminal of the frequency converter 44, and the signal output terminal of the frequency converter 44 is electrically connected to the signal input terminal of the main motor variable frequency ac contactor 46. According to requirements, the load sensor 38 is a known technology, such AS a load displacement integrated sensor, the central processor 43 can be electrically and electrically connected with a 32-digit DSP upper computer of an military product of the known technology, the central processor 43 is a known technology, such AS a PLC programmable controller of S7-1200 with a KP600PN5.7-inch touch-button screen, the angular displacement sensor 39 is a known technology, such AS the angular displacement sensor 39 with the model number of FDW-090-P15-A0G-E20, and the frequency converter 44 is a known technology, such AS the ABB frequency converter 44 with the model number of ASCM1-04 AS-031A-4. In the using process, after the load information tested by the load sensor 38 and the three-phase electric parameters of the main motor 7 are transmitted to the central processing unit 43 for processing, the moving direction of the movable weight box, namely the left or right moving direction and the moving time are determined, and the worm and gear reducer with the balance motor 24 is started according to the moving direction and the moving time, so that the movable fixed box 19 is moved to a required position. When the front movable box 18 approaches the lower limit switch 41 or the upper limit switch 40, the lower limit switch 41 or the upper limit switch 40 transmits a signal to the central processing unit 43, the central processing unit 43 immediately sends out the signal, the worm gear reducer with the balance motor 24 stops working, and meanwhile, the worm gear reducer can only run in a reverse direction when being started next time. Automatically adjusting the stroke frequency of the oil pumping unit: the information collected by the load sensor 38 and the angular displacement sensor 39 is transmitted to the central processing unit 43, the pump discharge fullness degree is calculated and analyzed by combining three-phase electric parameters, the required stroke frequency is given, and the stroke frequency of the pumping unit is automatically adjusted by the frequency converter 44.
As shown in fig. 1, the electric control brake protection device includes an armature 31, a return spring 32, a force limiter 33 and an electromagnet 34, the lower end of the electric brake pull rod 15 is fixedly mounted with the upper end of the force limiter 33, the electromagnet 34 is fixedly mounted below the force limiter 33, the armature 31 matched with the electromagnet 34 is arranged in the electromagnet 34, the upper end of the armature 31 is fixedly mounted with the lower end of the force limiter 33, the return spring 32 with the upper end fixedly mounted with the lower end of the force limiter 33 is sleeved on the outer side of the armature 31, the lower end of the return spring 32 is fixedly mounted with the upper end of the electromagnet 34, and the signal input end of the electromagnet 34 is electrically connected with the signal output end of a control module which can electrify the electromagnet and can. The return spring 32 is a prior art spring such as a compression spring and the force limiter 33 is a prior art tension limiter such as model VM105-320, as desired. In the using process, under the normal working state of the oil pumping unit, the armature 31 is separated from the electromagnet 34 under the action of the return spring 32, and under the condition that the oil pumping unit is out of load and is in an overspeed state, the control module enables the electromagnet 34 to be electrified, the electromagnet 34 drives the armature 31 and the force limiter 33 to move downwards, and finally the electric brake pull rod 15 drives the brake handle 11 to act, so that the electric brake is realized.
As shown in fig. 1 and 3, the control module includes a velocity measuring device 35 and a counter 36, at least two rim recesses for counting are provided on the outer edge of the brake wheel 9 along the circumference, the velocity measuring device 35 facing the rim recesses is fixedly installed on the outer side of the brake wheel 9, the signal output end of the velocity measuring device 35 is electrically connected to the signal input end of the counter 36, and the signal output end of the counter 36 is electrically connected to the fifth signal input end of the central processing unit 43, the signal input end of the frequency converter 44, and the signal input end of the electromagnet 34. The tachometer 35 and counter 36 are known in the art, such as an intelligent counter 36 model SF9648J, as required. In the use process, through the arrangement, the running state of the pumping unit can be detected in real time, and if the rotating speed of the brake wheel 9 is too high, the velometer 35 and the counter 36 can cut off the power supply of the main motor 7, so that the pumping unit is protected conveniently.
As shown in fig. 1 and 3, the brake device further comprises an inductive switch 37, an inductive switch 37 capable of detecting whether the brake device is in a braking or non-braking state is fixedly installed below the manual brake device 14, and an output end of the inductive switch 37 is electrically connected with an input end of the counter 36. The inductive switch 37 is a known switch, such as a delavay travel switch model number LXK3-20H/T, as desired. In the use process, through the arrangement, the pumping unit can be ensured to be locked in a stop state, and the safety of the pumping unit in the maintenance process is improved.
As shown in fig. 1 and 2, a partition plate 21 is fixed in the front movable box 18 and divides the front movable box into a fixed counterweight cavity and a movable counterweight cavity, the fixed counterweight cavity is filled with a fixed counterweight, the movable counterweight cavity is provided with a movable counterweight 22, the front movable box 18 is fixedly provided with a safety catch lever capable of blocking the movable counterweight 22, and the rear movable box and the front movable box 18 have the same structure and are symmetrically arranged. According to the requirement, the fixed counterweight is the prior known technology, for example, composite material aggregate and other materials are adopted, so that the manufacturing cost is reduced on the basis of meeting the counterweight. The safety catch lever plays a role in protecting the movable balancing weight 22 and preventing the movable balancing weight 22 from falling off in the operation process; the balance is roughly adjusted by adjusting the number of the movable counter weights 22 in the movable counter weight cavity of the front movable box 18, the balance is accurately adjusted by changing the position of the fixed box 19, and the balance of the safe digital oil pumping unit is easily balanced and can be kept balanced by combining the adjustment of the number of the movable counter weights 22 and the change of the position of the movable counter weight box.
The technical characteristics form an embodiment of the invention, which has strong adaptability and implementation effect, and unnecessary technical characteristics can be increased or decreased according to actual needs to meet the requirements of different situations.
Claims (9)
1. A safety digital oil pumping machine is characterized by comprising a rack, a base, a speed reducer, a horse head, a rope hanger, a walking beam, a support rod, a movable weight box and a suspension arm, wherein the rack is fixedly installed on the upper side of the right part of the base, the speed reducer with a main motor is fixedly installed on the upper side of the left part of the base, an input shaft with the front end positioned on the front side of the speed reducer is arranged at the left part of the speed reducer, a brake wheel is fixedly installed at the front end of the input shaft, a brake drum matched with the brake wheel is installed on the outer side of the input shaft corresponding to the position between the brake wheel and the speed reducer, a brake pull rod capable of driving the brake drum to lock the brake shaft by swinging downwards is installed on the brake drum, a brake handle is fixedly installed at the left end of the brake pull rod, a left long round hole and a right round hole which are arranged in a front-back, the front side of the left slide block is installed with the upper end of a manual brake device, a right slide block which can move up and down in the inner side of the right long circular hole and the front end and the rear end of which are respectively positioned at the front side and the rear side of a brake handle is arranged in the right long circular hole, the front side of the right slide block is installed with the upper end of an electric brake pull rod, the lower end of the electric brake pull rod is fixedly provided with an electric control brake protection device which can drive the brake handle to stop the pumping unit, the electric control brake protection device is electrically connected with a control module which can monitor the rotating speed of a brake wheel and can drive the electric control brake protection device to act, the upper side of a rack is hinged with the lower side of the middle part of a walking beam, the lower side of the left part of the walking beam is fixedly provided with a support seat, the left side of the upper part of the rack is hinged with, a rope hanger is arranged below the horse head, the rope hanger is connected with the right side of the horse head through a right steel wire rope, a suspension arm which is inclined in a left-low-right-high shape is fixedly installed at the left end of a walking beam corresponding to the left position of the rack, a saddle-shaped movable weight box is installed in the middle of the suspension arm, and a driving device which can enable the movable weight box to move left and right is fixedly installed at the upper side of the right part of the suspension arm corresponding to the upper right position of the movable weight box.
2. The safety digital oil pumping machine according to claim 1, wherein the movable weight box comprises a front movable box, a fixed box and a rear movable box, the front side and the rear side of the suspension arm are respectively provided with the front movable box and the rear movable box, the upper side of the front movable box is fixedly provided with the fixed box with the lower side parallel to the upper side of the suspension arm, the lower side of the rear part of the fixed box is fixedly arranged with the upper side of the rear movable box, the left side and the right side of the rear side of the front movable box are provided with at least two front rollers with rims contacted with the upper side of the front part of the suspension arm at intervals, and the left side and the right side of the front side of the rear movable box are.
3. The safe digital oil pumping machine according to claim 2, wherein the driving device comprises a worm gear reducer with a balance motor, a front axle seat, a rear axle seat, a wire rope reel and a left wire rope, the worm gear reducer with the balance motor is fixedly installed on the upper right side of the boom, the front axle seat and the rear axle seat are fixedly installed on the upper side of the boom corresponding to the rear position of the left part of the worm gear reducer at intervals in front and back, the left part of the worm gear reducer is provided with an output shaft, the rear end of the output shaft penetrates through the front axle seat and is installed in the right axle seat, the wire rope reel is fixedly installed on the outer side of the output shaft corresponding to the position between the front axle seat and the rear axle seat, the right side of the fixed box is fixedly provided with a hanging ring, one end of the left wire rope.
4. The safety digital oil pumping machine according to claim 3, characterized in that a control cabinet is fixedly arranged on the upper side of the left part of the base, and a central processor, a frequency converter, a start-stop control relay, a main motor frequency conversion AC contactor, a main motor power frequency AC contactor, a balance adjusting control relay, a balance motor AC contactor and a current transmitter are fixedly arranged in the control cabinet; a load sensor is fixedly arranged on the rope suspension device, angular displacement sensors are arranged on articulated shafts at the lower side of the middle part of the walking beam and the upper side of the rack, a lower limit switch is fixedly arranged at the position corresponding to the front side of the suspension arm at the left position of the front movable box, an upper limit switch is fixedly arranged at the position corresponding to the front side of the suspension arm at the right position of the front movable box, the signal output end of the load sensor is electrically connected with the first signal input end of the central processing unit, the signal output end of the angular displacement sensor is electrically connected with the second signal input end of the central processing unit, the signal output ends of the lower limit switch and the upper limit switch are electrically connected with the third signal input end of the central processing unit, the signal output end of the lower limit switch, the signal output end of the upper limit switch and the first signal output end of the central processing unit are electrically, the signal output end of the balance adjusting control relay is electrically connected with the signal input end of the balance motor alternating current contactor, the output end of the balance motor alternating current contactor is respectively electrically connected with the signal input end of the current transmitter and the signal input end of the balance motor, the signal output end of the current transmitter is electrically connected with the fourth signal input end of the central processing unit, the second signal output end of the central processing unit is electrically connected with the signal input end of the start-stop control relay, the signal output end of the start-stop control relay is respectively electrically connected with the signal input end of the main motor power frequency alternating current contactor and the signal input end of the main motor variable frequency alternating current contactor, the signal output end of the main motor power frequency alternating current contactor and the signal output end of the main motor variable frequency alternating current contactor are both electrically connected with the signal input end of the main motor, and the third signal output end of the central processing unit is electrically connected with the, the signal output end of the frequency converter is electrically connected with the signal input end of the main motor variable-frequency alternating current contactor.
5. The safe digital oil pumping unit according to claim 1, 2, 3 or 4, characterized in that the electric control brake protection device comprises an armature, a reset spring, a force limiter and an electromagnet, the lower end of the electric brake pull rod is fixedly installed with the upper end of the force limiter, the electromagnet is fixedly installed below the force limiter, the armature matched with the electromagnet is arranged in the electromagnet, the upper end of the armature is fixedly installed with the lower end of the force limiter, the reset spring with the upper end fixedly installed with the lower end of the force limiter is sleeved outside the armature, the lower end of the reset spring is fixedly installed with the upper end of the electromagnet, and the signal input end of the electromagnet is electrically connected with the signal output end of the control module which can electrify the electromagnet and can cut off the power of the.
6. The safety digital oil pumping unit according to claim 5, wherein the control module comprises a speed detector and a counter, the outer edge of the brake wheel is circumferentially provided with at least two rim grooves for counting, the speed detector facing the rim grooves is fixedly installed on the outer side of the brake wheel, the signal output end of the speed detector is electrically connected with the signal input end of the counter, and the signal output end of the counter is electrically connected with the fifth signal input end of the central processing unit, the signal input end of the frequency converter and the signal input end of the electromagnet respectively.
7. The safety digital oil pumping unit according to claim 6, further comprising an inductive switch, wherein the inductive switch capable of detecting whether the manual brake device is in a brake or non-brake state is fixedly installed below the manual brake device, and an output end of the inductive switch is electrically connected with an input end of the counter.
8. A safety digital oil pumping machine according to claim 2, 3, 4, 6 or 7, characterized in that a partition is fixed in the front movable box and divides the front movable box into a fixed counterweight chamber and a movable counterweight chamber, the fixed counterweight chamber is filled with a fixed counterweight, the movable counterweight chamber is provided with a movable counterweight, the front movable box is fixedly provided with a safety stop lever capable of stopping the movable counterweight, and the rear movable box and the front movable box are in the same structure and are symmetrically arranged.
9. The safety digital oil pumping machine according to claim 5, characterized in that a partition is fixed in the front movable box and divides the front movable box into a fixed counterweight cavity and a movable counterweight cavity, the fixed counterweight cavity is filled with a fixed counterweight, the movable counterweight cavity is provided with a movable counterweight, the front movable box is fixedly provided with a safety stop lever capable of stopping the movable counterweight, and the rear movable box and the front movable box have the same structure and are symmetrically arranged.
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| CN202010306099.3A CN111577221B (en) | 2020-04-17 | 2020-04-17 | Safety digital oil pumping machine |
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| CN202010306099.3A CN111577221B (en) | 2020-04-17 | 2020-04-17 | Safety digital oil pumping machine |
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| CN111577221B CN111577221B (en) | 2022-07-15 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113605867A (en) * | 2021-09-29 | 2021-11-05 | 东营正大金属制品有限公司 | Automatically controlled intelligent braking system of beam-pumping unit |
| CN116927724A (en) * | 2023-08-15 | 2023-10-24 | 大庆石油管理局有限公司 | Roller winding type intelligent tower type oil pumping machine |
| CN117948266A (en) * | 2024-03-27 | 2024-04-30 | 山东常城机械制造有限公司 | Counterweight protection device for pumping unit |
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| CN204664291U (en) * | 2014-12-31 | 2015-09-23 | 新疆维吾尔自治区第三机床厂 | Beam pumping unit balance regulator |
| CN105465243A (en) * | 2015-12-29 | 2016-04-06 | 中国石油天然气股份有限公司 | Automatic starting, stopping and braking device of pumping unit |
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| US20130272897A1 (en) * | 2010-12-29 | 2013-10-17 | Bode Energy Equipment Co., Ltd. | Intelligent online closed-loop balance adjusting system for pumping unit |
| CN104563970A (en) * | 2014-12-31 | 2015-04-29 | 新疆维吾尔自治区第三机床厂 | Digital automatic control oil pumping method and mobile balancing digital oil pumping unit |
| CN204664291U (en) * | 2014-12-31 | 2015-09-23 | 新疆维吾尔自治区第三机床厂 | Beam pumping unit balance regulator |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113605867A (en) * | 2021-09-29 | 2021-11-05 | 东营正大金属制品有限公司 | Automatically controlled intelligent braking system of beam-pumping unit |
| CN113605867B (en) * | 2021-09-29 | 2021-12-24 | 东营正大金属制品有限公司 | Automatically controlled intelligent braking system of beam-pumping unit |
| CN116927724A (en) * | 2023-08-15 | 2023-10-24 | 大庆石油管理局有限公司 | Roller winding type intelligent tower type oil pumping machine |
| CN116927724B (en) * | 2023-08-15 | 2024-01-30 | 大庆石油管理局有限公司 | Roller winding type intelligent tower type oil pumping machine |
| CN117948266A (en) * | 2024-03-27 | 2024-04-30 | 山东常城机械制造有限公司 | Counterweight protection device for pumping unit |
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|---|---|
| CN111577221B (en) | 2022-07-15 |
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