CN110725789A - Pendulum-following counterweight device for beam-pumping unit - Google Patents
Pendulum-following counterweight device for beam-pumping unit Download PDFInfo
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- CN110725789A CN110725789A CN201811214929.9A CN201811214929A CN110725789A CN 110725789 A CN110725789 A CN 110725789A CN 201811214929 A CN201811214929 A CN 201811214929A CN 110725789 A CN110725789 A CN 110725789A
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- guide rail
- counterweight
- swing
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- 238000005086 pumping Methods 0.000 title claims abstract description 69
- 230000007246 mechanism Effects 0.000 claims abstract description 85
- 230000001939 inductive effect Effects 0.000 claims description 8
- 229910000831 Steel Inorganic materials 0.000 claims description 7
- 239000010959 steel Substances 0.000 claims description 7
- 230000000712 assembly Effects 0.000 claims description 6
- 238000000429 assembly Methods 0.000 claims description 6
- 230000002265 prevention Effects 0.000 claims description 6
- 230000003014 reinforcing effect Effects 0.000 claims description 5
- 230000000977 initiatory effect Effects 0.000 claims description 2
- 230000008093 supporting effect Effects 0.000 claims description 2
- 238000000034 method Methods 0.000 abstract description 15
- 230000008569 process Effects 0.000 abstract description 12
- 239000003921 oil Substances 0.000 description 24
- 230000008859 change Effects 0.000 description 9
- 238000005461 lubrication Methods 0.000 description 7
- 238000010586 diagram Methods 0.000 description 4
- 239000000428 dust Substances 0.000 description 4
- 230000006698 induction Effects 0.000 description 4
- 241001023788 Cyttus traversi Species 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000012535 impurity Substances 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 229910052500 inorganic mineral Inorganic materials 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 239000011707 mineral Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 239000003638 chemical reducing agent Substances 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000001976 improved effect Effects 0.000 description 1
- 239000010687 lubricating oil Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000003129 oil well Substances 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
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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
-
- 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
- E21B43/126—Adaptations of down-hole pump systems powered by drives outside the borehole, e.g. by a rotary or oscillating drive
- E21B43/127—Adaptations of walking-beam pump systems
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- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
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Abstract
The invention provides a following swing counterweight device for a beam-pumping unit, which comprises a counterweight bracket arranged at the tail end of a beam body, a ball screw and a driving device which are arranged on the counterweight bracket, a component force mechanism locked on the ball screw, a swinging mechanism hung on the component force mechanism and a controller used for controlling the starting/stopping of the driving device. By installing the swing mechanism, the motion moment in the process of the pumping operation stroke can be balanced, so that the pumping motion of the pumping unit is more stable, and the pumping efficiency is higher. When the underground load is increased, the controller controls the rotating speed and the steering direction of the driving device to drive the ball screw to rotate, and further drives the component force mechanism and the swinging mechanism to transversely move along the counterweight support to balance the changed moment, and finally the balance of the system is realized.
Description
Technical Field
The invention relates to the technical field of oil field production equipment, in particular to a following swing counterweight device for a beam-pumping unit.
Background
The pumping unit is an oil extraction device widely used in oil fields, and the working principle is as follows: the horse head arranged on the oil beam is driven by the motor and the reducer to reciprocate up and down, so that the oil pumping action is realized. However, when the pumping unit is operated for a long time, wax and mineral substances are easily adhered to the wall of the underground oil pipe, so that the pumping unit is overloaded, and the pumping unit is difficult to maintain good balance. In the process of oil well washing, the working fluid level in the well changes, so that the load of the pumping unit changes, and if the balance of the pumping unit cannot be adjusted in time, the pumping effect is influenced.
In the prior art, a counterweight 01 is usually installed at the tail of a walking beam, as shown in fig. 1, in order to balance the torque variation during the pumping process of the pumping unit, thereby achieving the balance of the pumping system. As can be seen from fig. 2, in one operation stroke cycle of the pumping unit, the moment variation range of the counterweight at the tail of the walking beam is large and is a non-smooth curve, so that the method of installing the counterweight block 01 at the tail end of the walking beam has an insignificant balancing effect. In addition, because the distance between the counterweight 01 and the fulcrum is constant, once the bottom hole load changes, the counterweight 01 cannot effectively balance the changed moment, and further the working efficiency of the pumping unit is influenced.
Disclosure of Invention
The invention aims to provide a pendulum-following counterweight device for a beam-pumping unit, which can effectively balance the change torque in the operating stroke period of the beam-pumping unit and the change torque generated by the change of external load, improves the stability and the oil pumping efficiency of a system, and is safe, energy-saving and environment-friendly.
The invention provides a following pendulum counterweight device for a walking beam type oil pumping unit, which comprises a counterweight bracket, a ball screw, a driving device and a component force mechanism, wherein the counterweight bracket is arranged at the tail end of a walking beam body; the swinging mechanism is hung on the force component mechanism and can swing by the dead weight; the device also comprises a controller used for controlling the start/stop of the driving device.
Preferably, the counterweight support comprises a first fixed plate mounted at the tail end of the walking beam body, a second fixed plate arranged in parallel with the first fixed plate, a guide rail vertically and fixedly arranged between the first fixed plate and the second fixed plate and used for supporting the force component mechanism, and at least two connecting pieces used for connecting the guide rail and the first fixed plate; the guide rail structure also comprises a reinforcing channel steel arranged at the bottom of the guide rail.
Preferably, component force mechanism including set up relatively and lock in two ball screw of ball screw to and link firmly respectively in two the component force spare of ball screw left and right sides terminal surface, the front end and the rear end of component force spare are equipped with the component force axle respectively, the component force axle is the step shaft, including the great first shaft section of shaft diameter and the relatively less second shaft section of shaft diameter, first shaft section with first bearing and second bearing are respectively installed to the second shaft section, two the second bearing respectively corresponds the cover and is equipped with the component force roller, two each suit of first bearing the swing connecting rod.
Preferably, the swinging mechanism comprises a pendulum and two swinging connecting rods, and the pendulum and the swinging connecting rods are connected through a connecting shaft.
Preferably, the component force mechanism further comprises two groups of over-travel prevention assemblies which are symmetrically arranged along the central longitudinal vertical plane of the guide rail and are used for preventing the over-travel movement of the component force mechanism;
the overtravel-preventing assembly comprises an L-shaped connecting plate arranged at the bottom end of the component force mechanism, and an inductive switch and a dragging cable which are arranged on the inner side wall of the guide rail and used for connecting the guide rail and the L-shaped connecting plate.
Preferably, the device also comprises four groups of limit switches arranged on the side wall of the guide rail, and the four groups of limit switches are respectively fixed at the left end and the right end of the front side wall and the rear side wall of the guide rail;
the limit switch comprises a proximity switch for detecting the swing position of the swing mechanism and controlling the driving device to decelerate, and a stop switch for connecting the proximity switch and the driving device to control the driving device to stop.
Preferably, the guide rail is provided with two linear sliding grooves which are respectively used for the movement of the L-shaped connecting plate, and the starting end and the stopping end of each linear sliding groove are respectively provided with an anti-overtravel stop dog.
Preferably, the counterweight support is provided with an automatic lubricator for automatically supplying oil to the ball screw.
Preferably, the automatic lubrication device further comprises a ground control cabinet which is connected with the controller and the automatic lubrication device and is used for carrying out ground control on the steering, starting and stopping of the driving device and the starting and stopping of the automatic lubrication device.
It is preferred. The ground control cabinet is provided with a motor startup key, a motor shutdown key, a lubricator startup key, a lubricator stop key and an LED indicator light.
Compared with the background technology, the invention provides the swing following counterweight device for the beam-pumping unit, the swing mechanism is arranged at the tail end of the beam body, the swing mechanism freely swings along with the operation stroke of the pumping unit by means of self gravity in the oil pumping process, and as can be seen from the torque variation curve in fig. 4, the torque variation curve is a smooth curve in one motion period, and the torque variation is small, so that the oil pumping process is more stable and efficient.
When impurities are accumulated on the wall of the underground oil pipe, the load of the oil pumping unit is increased, the driving device is started through the controller, the driving device further drives the ball screw to rotate, and the ball screw is connected with the force component mechanism in a locking mode, and the swinging mechanism is hung on the force component mechanism, so that the ball screw converts the rotary motion into the linear motion of the force component mechanism, and the force component mechanism and the swinging mechanism are driven to move linearly along the balance weight support. Therefore, the controller adjusts the steering and the rotating speed of the driving device, so that the movement direction and the movement distance of the swinging mechanism can be adjusted, and finally, the moment generated by the load change is balanced.
In conclusion, the pendulum-following counterweight device for the beam-pumping unit, provided by the invention, can balance the change moment of the beam-pumping unit in the operating stroke period, and can also balance the change moment generated due to load change when the underground load changes, so that the stable and efficient operation of the beam-pumping unit is ensured.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
FIG. 1 is a schematic structural view of a prior art walking beam pumping unit;
FIG. 2 is a graph of torque change over a stroke cycle for the pumping unit of FIG. 1;
FIG. 3 is a schematic structural diagram of a beam-pumping unit equipped with a counterweight device;
FIG. 4 is a graph of the moment variation of the pendulum weight assembly of the present invention during a stroke cycle;
FIG. 5 is a schematic structural diagram of the follow-swing weighting device in FIG. 3;
FIG. 6 is a schematic view of another angle of FIG. 5;
FIG. 7 is an assembly view of the ball screw, the force-distributing mechanism, the guide rail, and the second guide plate of FIG. 5;
FIG. 8 is an assembled schematic view of the force-splitting mechanism, guide plate, and inductive switch and trailing cable;
fig. 9 is a schematic structural view of the force distributing member in fig. 5.
The device comprises a walking beam body 1, a counterweight support 2, a first fixing plate 21, a second fixing plate 22, a guide rail 23, a connecting piece 24, a reinforcing channel steel 25, a ball screw 3, a ball nut 4, a component force piece 5, a component force shaft 51, a first shaft section 511, a second shaft section 512, a component force roller 6, a swinging mechanism 7, a pendulum bob 71, a swinging connecting rod 72, a connecting shaft 73, an L-shaped connecting plate 8, an inductive switch 9 and a dragging cable.
Detailed Description
The core of the invention is to provide a pendulum-following counterweight device for a beam-pumping unit, which can realize the moment balance in the oil pumping process and can balance the changed moment, thereby ensuring that the oil pumping process is more stable and more efficient.
It should be noted that the terms "up, down, left, and right" directions as used herein refer to the up, down, left, and right directions in fig. 5; "front" refers to a direction toward the paper in fig. 5, and "rear" refers to a direction away from the paper in fig. 5. All directional terms used herein are set forth based on their customary usage by those skilled in the art and the accompanying drawings of the specification, and their presence should not be construed as affecting the scope of the present invention.
In order that those skilled in the art will better understand the disclosure, the invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
Referring to fig. 3 to 9, fig. 3 is a schematic structural diagram of a beam-pumping unit equipped with a counterweight device; FIG. 4 is a graph of the moment variation of the pendulum weight assembly of the present invention during a stroke cycle; FIG. 5 is a schematic structural diagram of the follow-swing weighting device in FIG. 3; FIG. 6 is a schematic view of another angle of FIG. 5; FIG. 7 is an assembly view of the ball screw, the force-distributing mechanism, the guide rail, and the second guide plate of FIG. 5; FIG. 8 is an assembled schematic view of the force-splitting mechanism, guide plate, and inductive switch and trailing cable; fig. 9 is a schematic structural view of the force distributing member in fig. 5.
The invention provides a following-swing counterweight device for a beam-pumping unit, which comprises a counterweight support 2, wherein the counterweight support 2 is fixed at the tail end of a beam body 1 through connecting pieces such as bolts and nuts, a ball screw 3 is arranged on the counterweight support 2, and the ball screw 3 is transversely arranged along the extension direction of the counterweight support 2, as shown in the attached figure 5 in the specification. The ball screw 3 is provided with a component force mechanism, the ball screw 3 is provided with an external thread, the component force mechanism is provided with an internal thread, and the ball screw 3 is in locking connection with the component force mechanism through the thread.
The component force mechanism is hung with a swing mechanism 7, and the swing mechanism 7 is in clearance fit with the component force mechanism to reduce the friction force between the swing mechanism 7 and the component force mechanism. In the process of oil pumping movement, the swing mechanism 7 can swing freely in the movement plane by means of gravity, and in the free following swing movement of the swing mechanism 7, the movement torque of the oil pumping unit in the oil pumping process is balanced, so that the oil pumping unit can run more stably. Comparing fig. 2 and fig. 4, it can be seen that, compared with the prior art, the moment difference of this application is less, and to whole beam-pumping unit system, the mechanical shock of beam-pumping unit system is less, the oil pumping process is more steady, and oil pumping efficiency is higher.
In addition, a driving device, such as a speed reduction motor, is further mounted on the counterweight support 2, the speed reduction motor is connected with the ball screw 3 through a coupling, and the ball screw 3 converts the rotary motion into a linear motion while rotating under the driving of the driving device, and transmits the linear motion to the force component mechanism, so that the force component mechanism and the swinging mechanism 7 thereof move transversely along the counterweight support 2, and the position of the swinging mechanism 7 on the counterweight support 2 is adjusted.
When objects such as wax, mineral substances and the like are attached to the wall of the underground oil pipe, the load hung on the horsehead at the head of the walking beam body 1 is increased, the moment of the horsehead relative to the fulcrum is increased, and at the moment, the position of the tail end swing mechanism 7 of the walking beam body 1 needs to be adjusted to balance the changed moment. The controller is started to enable the controller to start the driving device, so that the ball screw 3 is driven to rotate, the ball screw 3 converts the rotation into linear motion, the force component mechanism is driven to transversely move along the balance weight support 2, and the swinging mechanism 7 is hung on the force component mechanism, so that the force component mechanism moves and simultaneously drives the swinging mechanism 7 to move to a target position, and the change moment generated by the increase of the load is balanced. The moving direction and the running distance of the swing mechanism 7 can be realized by adjusting the steering and rotating speed of the driving device by the controller.
Therefore, according to the swing following counterweight device for the beam-pumping unit, the swing mechanism 7 is installed at the tail end of the beam body 1, and the swing mechanism 7 freely swings along with the swing of the pumping unit in the oil pumping process of the pumping unit, so that the torque of the system is maintained to be stable, and the oil pumping efficiency is improved.
The counterweight support 2 comprises a first fixing plate 21, a second fixing plate 22, a guide rail 23 and a connecting piece 24, wherein the first fixing plate 21 and the second fixing plate 22 are both of a plate-shaped structure and have sufficient strength and rigidity, bearing seats are mounted on the first fixing plate 21 and the second fixing plate 22, bearings are mounted in the bearing seats, the first fixing plate 21 is fixed at the tail end of the walking beam body 1 through connecting pieces such as bolts, the second fixing plate 22 is arranged in parallel with the first fixing plate 21, the guide rail 23 is preferably a channel steel, the guide rail 23 is welded to two inner side walls of the first fixing plate 21 and the second fixing plate 22, and the guide rail 23 is used for bearing the weight of the component force mechanism and the swinging mechanism 7 and providing guiding component force for linear motion of the component force mechanism.
In order to strengthen the strength of the guide rail 23, a reinforcing channel steel 25 can be additionally arranged at the bottom end of the guide rail 23, and the arrangement of the reinforcing channel steel 25 can share part of load applied to the guide rail 23, thereby improving the bearing strength of the guide rail 23 and prolonging the service life of the guide rail 23.
In order to increase the connection strength between the first fixing plate 21 and the guide rail 23, the connecting members 24 may be respectively installed on the front and rear sidewalls of the first fixing plate 21 and the guide rail 23, the first fixing plate 21, the connecting members 24 and the guide rail 23 may be welded or bolted, and the number of the connecting members 24 may be set according to actual needs.
The swing mechanism 7 includes a pendulum 71 and two swing links 72, the pendulum 71 is mounted on the lower ends of the two swing links 72, and the swing links 72 and the pendulum 71 are connected by a connecting shaft 73. The upper ends of the two swinging connecting rods 72 are respectively provided with a round hole, the two swinging connecting rods 72 are hung on the force dividing mechanism through the round holes, and the swinging connecting rods 72 are ensured to be in clearance fit with the force dividing mechanism, so that the pendulum bob 71 and the swinging connecting rods 72 can freely move along with the pendulum.
As shown in fig. 8, the force component mechanism includes two ball nuts 4, a force component member 5 and a force component roller 6, the two ball nuts 4 are oppositely arranged on the ball screw 3, and the clearance between the two ball nuts 4 and the ball screw 3 is adjusted to be minimum through screw locking, so as to reduce the impact on the ball nuts 4 and the ball screw 3 during the operation of the device and the operation of the pumping unit. The two ball nuts 4 are arranged in a face-to-face mode, the left side face and the right side face of the component force piece 5 are both planes, a circular through hole is formed in the center of the component force piece 5, the component force piece 5 is sleeved on the ball nuts 4 through the circular through hole, and the two ball nuts 4 are respectively installed on the planes on the two sides of the component force piece 5.
The front end and the rear end of the component force part 5 are respectively fixedly provided with a component force shaft 51, the component force shaft 51 is a stepped shaft and comprises a first shaft section 511 with a larger shaft diameter and a second shaft section 512 with a smaller shaft diameter relative to the first shaft section 511, the first shaft section 511 and the second shaft section 512 are respectively provided with a first bearing and a second bearing, the first bearing is sleeved with a swing connecting rod 72, and the first bearing enables the swing connecting rod 72 to freely swing along with the operation of the pumping unit system within the range of 60 degrees of included angle; the component force roller 6 is sleeved on the second bearing, and elastic check rings are installed on the first bearing and the second bearing so as to limit the axial direction of the first bearing and the second bearing.
Because the swinging connecting rod 72 is hung on the force component part 5, the force component part 5 is installed on the guide rail 23 through the force distribution roller 6, and the force distribution roller 6 transmits the weight of the pendulum bob 71 and the swinging connecting rod 72 to the guide rail 23, in this way, the ball screw 3 only bears the axial force, the ball screw 3 can be protected, the service life of the ball screw 3 can be prolonged, the function of inertia buffer is played for the whole pumping unit system, and the mechanical impact on the whole pumping unit system is reduced.
In order to prevent impurities such as dust from falling into the driving device, a dust cover can be additionally arranged on the counterweight support 2 and is arranged above the driving device, so that the dust cover can effectively block impurities such as dust when the driving device runs, and the waterproof and dustproof effects are achieved.
In order to prevent the component force mechanism from overtravel movement, two groups of overtravel prevention assemblies can be arranged on the component force mechanism and the guide rail 23, when the component force mechanism and the guide rail 23 are installed, the two groups of overtravel prevention assemblies are symmetrically arranged along the central longitudinal vertical plane of the guide rail 23, each group of overtravel prevention assemblies comprises an L-shaped connecting plate 8, an induction switch and a dragging cable 9, one end of each L-shaped connecting plate 8 in one group of overtravel prevention assemblies is arranged at the bottom of the component force mechanism, the inner side surface of the other end of each L-shaped connecting plate 8 is provided with the induction switch and the dragging cable 9, and the other ends of the induction switch; one end of another group of L-shaped connecting plates 8 is arranged at the bottom of the force component mechanism, the other end of the other group of L-shaped connecting plates is provided with another inductive switch and a dragging cable 9, and the other ends of the inductive switch and the dragging cable 9 are arranged on the inner side surface of the rear wall of the guide rail 23. In this way, when the force component mechanism moves, under the action of the inductive switch and the dragging cable 9, the force component mechanism can be ensured to move within a limited range, so as to prevent the force component mechanism from moving beyond a limited range.
In order to further prevent the component force mechanism from over-travel movement, limit switches can be installed on the guide rail 23, specifically, two sets of limit switches are installed on the front side wall and the rear side wall of the guide rail 23 respectively, the two sets of limit switches are arranged at the left end portion and the right end portion of the guide rail 23 respectively, any one set of limit switch comprises a proximity switch and a stop switch, the proximity switch is used for detecting the swing position of the swing mechanism 7 and controlling the driving device to decelerate, the stop switch is used for stopping the driving device, that is, when the proximity switch detects that the swing mechanism 7 swings to the limit position, the driving device is controlled to decelerate, and when the stop switch detects that the swing mechanism 7 swings to the limit position, the driving device stops working.
It can be seen that the pendulum 71 is ensured to move within a predetermined range by the double limit method of mechanical limit and electrical control limit, and the moving range of the pendulum 71 can be adjusted by adjusting the installation positions of the induction switch and the drag cable 9, and the installation position of the limit switch.
In order to realize the stable operation of the force component mechanism, a linear sliding groove for the linear sliding of the L-shaped connecting plate 8 can be arranged on the guide rail 23, and the linear sliding groove provides a guiding function, so that the force component mechanism can be ensured to move stably along a straight line. In addition, can also respectively install at the initiating terminal and the termination end of sharp spout and prevent the dog of overtravel, prevent that the dog of overtravel passes through connecting pieces such as bolt and install on sharp spout to prevent 8 overtravel movements of L type connecting plate.
In order to realize the automatic lubrication of the ball screw 3, an automatic lubricator can be arranged on the counterweight bracket 2 and arranged above the ball screw 3, the automatic lubricator has the function of supplying lubricating oil regularly and quantitatively, a timer, a valve and a control circuit are arranged in the automatic lubricator, the timer is used for storing the rest time and the working time, the control circuit is used for opening and closing the valve, and after the rest time is reached, the control circuit automatically controls the valve to be opened to lubricate the ball screw 3; when the lubrication reaches the set working time, the control circuit automatically closes the valve, so that the automatic lubrication of the ball screw 3 can be realized.
In order to realize the remote control of the driving device and the automatic lubricator, a ground control cabinet can be arranged on the ground and is in wireless connection with the controller and the automatic lubricator. The staff can control opening of controller through this ground control cabinet and stop and turn to and opening of automatic lubrication ware stops, and is safe convenient more.
Specifically, a motor startup key, a motor shutdown key, a lubricator startup key, a lubricator stop key and an on/off state display lamp are arranged on the ground control cabinet. The ground control cabinet is internally provided with a wireless transceiver, the wireless transceiver is connected with a motor startup key and a motor shutdown key through a wire, the controller has a wireless transceiving function, when a worker presses the motor startup key or the motor shutdown key, a startup/shutdown instruction is sent to the controller through the wireless transceiver, and the controller controls the start-stop of the driving device. Similarly, the automatic lubricator has a signal receiving and transmitting function, when a worker presses an lubricator opening key or a lubricator stopping key, the automatic lubricator can be opened and stopped through the wireless transceiver, and therefore remote control over the automatic lubricator is achieved.
The ground control cabinet is also provided with an LED indicating lamp for displaying the on-off state of the motor, the normally-on state indicates that the equipment is in the on-off state, the normally-off state indicates that the equipment is in the standby state, and therefore, the on-off state of the driving device can be known by the staff through the indicating condition of the LED indicating lamp, and the visual operation of the on-off process is realized.
The following pendulum weight device for the beam-pumping unit provided by the invention is described in detail above. The principles and embodiments of the present invention are explained herein using specific examples, which are presented only to assist in understanding the method and its core concepts. It should be noted that, for those skilled in the art, it is possible to make various improvements and modifications to the present invention without departing from the principle of the present invention, and those improvements and modifications also fall within the scope of the claims of the present invention.
Claims (10)
1. The swing following counterweight device for the beam-pumping unit is characterized by comprising a counterweight bracket (2) arranged at the tail end of a beam body (1), a ball screw (3) transversely arranged on the counterweight bracket (2), a driving device used for driving the ball screw (3) to move, and a component force mechanism locked on the ball screw (3) and used for enabling the ball screw (3) to move linearly in the transverse direction along the counterweight bracket (2) when the driving device drives the ball screw (3) to rotate; the swinging mechanism (7) is hung on the force component mechanism and can swing by the dead weight; the device also comprises a controller used for controlling the start/stop of the driving device.
2. The swing following counterweight device for a beam-pumping unit according to claim 1, characterized in that the counterweight bracket (2) comprises a first fixing plate (21) mounted at the tail end of the beam body (1), a second fixing plate (22) arranged in parallel with the first fixing plate (21), a guide rail (23) vertically fixed between the first fixing plate (21) and the second fixing plate (22) and used for supporting the force-dividing mechanism, and at least two connecting pieces (24) used for connecting the guide rail (23) and the first fixing plate (21); the steel plate is characterized by further comprising a reinforcing channel steel (25) arranged at the bottom of the guide rail (23).
3. The counter weight device along with pendulum for beam-pumping unit of claim 2 characterized in that, component mechanism includes relative setting and lock in two ball screw (4) of ball screw (3), and link firmly respectively in component (5) of two ball screw (4) left and right sides terminal surface, the front end and the rear end of component (5) are equipped with component axle (51) respectively, component axle (51) are the step shaft, including the great first shaft section (511) of shaft diameter and the relatively less second shaft section (512) of shaft diameter, first shaft section (511) with second shaft section (512) each correspond suit first bearing and second bearing, two second bearing each suit is equipped with component roller (6), two first bearing each suit swing mechanism (7).
4. The follow-on weight device for a beam-pumping unit according to claim 3, characterized in that the swinging mechanism (7) comprises a pendulum (71) and two swinging connecting rods (72), and the pendulum (71) and the swinging connecting rods (72) are connected through a connecting shaft (73).
5. The swing following counterweight device for the beam-pumping unit according to any one of claims 2 to 4, characterized by further comprising two sets of overtravel prevention assemblies which are symmetrically arranged along the central vertical plane of the guide rail (23) and used for preventing the overtravel movement of the force-dividing mechanism;
the overtravel-preventing assembly comprises an L-shaped connecting plate (8) arranged at the bottom end of the component force mechanism, an inductive switch and a dragging cable (9) which are arranged on the inner side wall of the guide rail (23) and used for connecting the guide rail (23) with the L-shaped connecting plate (8).
6. The counter weight device with pendulum for beam-pumping unit according to any one of claims 2-4, characterized by further comprising four sets of limit switches mounted on the side wall of the guide rail (23), wherein the four sets of limit switches are respectively fixed at the left and right ends of the front and rear side walls of the guide rail (23);
the limit switch comprises a proximity switch used for detecting the swinging position of the swinging mechanism (7) and controlling the driving device to decelerate, and a stop switch used for being connected with the proximity switch and the driving device to control the driving device to stop.
7. The counter weight device with pendulum for beam-pumping unit of claim 6, characterized in that, guide rail (23) are equipped with two straight line spouts that are used for supplying respectively the motion of L type connecting plate (8), the initiating terminal and the termination end of straight line spout respectively install prevent overtravel dog.
8. The follow-pendulum weight device for a beam-pumping unit according to claim 7, characterized in that the weight holder (2) is mounted with an automatic lubricator for automatically supplying oil to the ball screw (3).
9. The follow-swing counterweight device for a beam-pumping unit according to claim 8, further comprising a ground control cabinet connected with the controller and the automatic lubricator and used for ground control of the steering, start and stop of the driving device and the start and stop of the automatic lubricator.
10. The free-swing counterweight device for a beam-pumping unit as claimed in claim 9, wherein said ground control cabinet is provided with a motor on key, a motor off key, a lubricator on key, a lubricator off key and an LED indicator light.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811214929.9A CN110725789A (en) | 2018-10-18 | 2018-10-18 | Pendulum-following counterweight device for beam-pumping unit |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811214929.9A CN110725789A (en) | 2018-10-18 | 2018-10-18 | Pendulum-following counterweight device for beam-pumping unit |
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| Publication Number | Publication Date |
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| CN110725789A true CN110725789A (en) | 2020-01-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811214929.9A Pending CN110725789A (en) | 2018-10-18 | 2018-10-18 | Pendulum-following counterweight device for beam-pumping unit |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117823397A (en) * | 2024-03-06 | 2024-04-05 | 成都鑫泽机械有限公司 | Beam-pumping unit walking beam slides two counter weight devices |
-
2018
- 2018-10-18 CN CN201811214929.9A patent/CN110725789A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117823397A (en) * | 2024-03-06 | 2024-04-05 | 成都鑫泽机械有限公司 | Beam-pumping unit walking beam slides two counter weight devices |
| CN117823397B (en) * | 2024-03-06 | 2024-05-10 | 成都鑫泽机械有限公司 | Beam-pumping unit walking beam slides two counter weight devices |
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Inventor after: Wang Hongjun Inventor after: Li Jun Inventor after: Zhao Weibiao Inventor after: Dong Wei Inventor after: Lu Zhengxiang Inventor after: Chen Yin Inventor after: Zhu Chunhua Inventor after: Cheng Junfei Inventor after: Shang Liang Inventor after: Cai Song Lin Inventor after: Wei Gang Inventor after: Li Jing Inventor after: Guan Wentao Inventor after: Cao Yonghui Inventor after: Zhao Haiquan Inventor after: Qian Peng Inventor before: Wang Hongjun Inventor before: Li Jun Inventor before: Zhao Weibiao Inventor before: Dong Wei Inventor before: Lu Zhengxiang Inventor before: Chen Yin Inventor before: Zhu Chunhua Inventor before: Cheng Junfei Inventor before: Shang Liang Inventor before: Cai Song Lin Inventor before: Wei Gang Inventor before: Li Jing Inventor before: Guan Wentao Inventor before: Cao Yonghui Inventor before: Zhao Haiquan Inventor before: Qian Peng |
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Effective date of registration: 20220622 Address after: 201800 room jt2789, building 2, No. 988, Qingtang Road, Nanxiang, Jiading District, Shanghai Applicant after: SHANGHAI YIXUN ENERGY TECHNOLOGY Co.,Ltd. Address before: 200137 room 2c09, building 14, No. 528, Yanggao North Road, Pudong New Area, Shanghai Applicant before: SHANGHAI YIXUN ENERGY TECHNOLOGY Co.,Ltd. Applicant before: Shanghai Danmu business consulting service center |