CN105275434B - A kind of long stroke direct drive pumping unit with double brake and counterweight anti-falling function - Google Patents
A kind of long stroke direct drive pumping unit with double brake and counterweight anti-falling function Download PDFInfo
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- CN105275434B CN105275434B CN201510687496.9A CN201510687496A CN105275434B CN 105275434 B CN105275434 B CN 105275434B CN 201510687496 A CN201510687496 A CN 201510687496A CN 105275434 B CN105275434 B CN 105275434B
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Abstract
The invention discloses a kind of long stroke direct drive pumping unit with double brake and counterweight anti-falling function, built-in decelerator of the motor drive installation of power set in reel, the band forward and reverse rotation of movable reel, there is the double brake function that motor braking and electro-hydraulic brake device are braked.Reel fixes the well head belt of winding, and wellhead polish rod is connected around the guiding reel that can be moved forward and backward；The fall arrest ballast box that reel opposite direction is fixed in winding counterweight belt connection frame；Wellhead polish rod load with reformation balance-type type with balancing.The oil pumper of the present invention has the characteristics that type of belt drive is simple, safe and reliable.
Description
Technical field
The present invention relates to oil field equipment field, specifically a kind of length with double brake and counterweight anti-falling function
Stroke direct drive pumping unit.
Background technology
With the growth of oil field development time, strata pressure gradually reduces, the artificial lift based on beam pumping unit
Occupy leading position.Motor is slowed down by two level reducer with hardened tooth surface, and driving toggle completes up-down stroke work.Limit
In drive path is long, toggle efficiency is low etc., reason, the big energy-consuming of beam pumping unit, volume are larger.
In recent years, engineers and technicians developed different types of tower-type pumping unit.《Outer-rotor permanent magnet motor cluster well is taken out
Oil machine》（Publication number CN202707001U）、《Tower-type pumping unit motor and its tower-type pumping unit》（Publication number CN101719702）
《Ultra-low speed big torsional moment abnormity motor dragging and tower type high-efficiency low-consumption intelligent pumping unit》（Publication number CN1840904B）It is required to adopt
With special motor, the deficiencies of standard fitting is few, cost is high, repair and replacement are difficult be present；《A kind of tower digital sucker》（It is public
The number of opening CN2511789Y）Using normal asynchronous after reducer with hardened tooth surface slows down the form with movable reel, top structure
Size and weight are big.Meanwhile above-mentioned oil pumper does not have an auxiliary brake mechanism and counterweight anti-falling mechanism, security is poor.
The content of the invention
For the deficiency of existing tower-type pumping unit, the present invention, which proposes, a kind of new has double brake and counterweight anti-fall
The long stroke direct drive pumping unit of drop.
The operation principle of the present invention：Long stroke direct drive pumping unit of the present invention uses tower structure, and the motor on top is positive and negative
Turn driving parent roll.The fixed well head belt connection polished rod being wrapped on parent roll, opposite direction are fixed and are wrapped on parent roll
Counterweight belt connects counterweight, is balanced between PRL and counterweight for balance-type type.The travel switch of frame top and bottom is tested
The running position signal of counterweight, control system realize the conversion of up-down stroke according to the rotating of position signalling controlled motor.Adopt
The double brake mode of electric machine built-in braking and electro-hydraulic brake is taken, improves the validity of braking.Meanwhile ballast box have it is anti-fall
Fall mechanism, prevent disconnected take off of belt from causing counterweight freely falling body.
Technical scheme is as follows：
Vertically arranged frame including base and thereon, the top installation power set of the frame, the frame
The ballast box that inside installation can move back and forth up and down along it, the power set include drive mechanism and are driven by it rotation
Reel, positive direction fixes winding well head belt on the reel, opposite direction fixes winding counterweight belt, under the counterweight belt
End connection ballast box；The power set are provided with brake apparatus；
The ballast box is fall arrest ballast box, and it includes casing and runs through the load-bearing pull bar of casing, institute from top to bottom
The upper end for stating load-bearing pull bar is connected with counterweight belt, rack is symmetrically installed at left and right sides of lower end or is processed as rack structure；
Fixed spring cylinder in the casing, the load-bearing pull bar interlude process a boss, be provided with the spring strut holddown spring and
Holddown spring is sleeved in the middle part of load-bearing pull bar, the lower end of the holddown spring and the boss against, upper end and spring strut against；
The casing is symmetrically mounted at the bottom of two parallel-crank mechanisms, each parallel-crank mechanism include drive, swing rod,
Pull bar and ear mount；Wherein described ear mount includes the inside and outside ear mount for being fixed on bottom half side by side, and the two forms parallelogram
The upper horizontal sides of mechanism；The drive includes the gear parts with center rotating hole and the swing positioned at its neighboring
Hole, the drive are hinged to form parallel-crank mechanism hypotenuse, institute by center rotating hole and the interior ear mount
The upper end for stating swing rod is hinged with outer ear mount and forms another hypotenuse of row quadrangular mechanism；The both ends of the pull bar respectively with pendulum
The lower end of bar, the swing hole of drive connect and form the lower horizontal sides of parallel-crank mechanism；
The both sides of the casing are symmetrically installed brake component, and the brake component is included with centre bore and neighboring exit orifice
Brake block, the centre bore and casing are hinged at, and the exit orifice and the outer end of the pull bar are hinged；On the brake block
Provided with brake area corresponding with the inner surface of the frame, and when the brake area contacts with frame inner surface, two
Person can form frictional fit；
Realized and nibbled with the drive on the inside of two parallelogram respectively by the rack of both sides in the load-bearing pull bar lower end
Close and coordinate；Rack vertical shift is converted to the transverse shifting of connecting rod.
The drive mechanism includes motor and the decelerator being connected with it, and the brake apparatus includes the interior of motor
Put brake and the electro-hydraulic brake device for spool shaft braking.For example selection of Motor carries the electrical variable frequency adjustable speed of inner brake
Machine, it is industrial general product, such as lifting variable-frequency motor；When power cut-off, built-in brake is braked in time.Motor base
This technology requirement meets the requirement of GB755 standards, is the product of industrial general.Described electro-hydraulic brake device and coordinate with it
Brake disc, braked wheel are general industrial products, and electric energy can be converted directly into unidirectional by electro-hydraulic brake device for one kind
The part of thrust, Ke Yi《Mechanical design handbook》The related model of middle selection.
Such scheme is more preferably：
Preferably, the decelerator is to be arranged at the built-in decelerator inside reel, the built-in decelerator it is defeated
Enter end and output end is coaxial, it is described built-in to subtract wherein the input shaft of the motor is connected with the input of built-in decelerator
The output end of fast device is connected with reel.
Preferably, the reel axially inside fixes inner flange, supporting plate successively, and the built-in decelerator includes
The input end housing of geo-stationary and the output end housing of relative rotation, the interior installation input shaft of input end housing, and institute
State input shaft one end drive connection motor output shaft, the other end drive connection output end housing；Outside the input end housing
Motor connection flange, support adpting flange are fixed with successively, and the input end housing passes through motor connection flange and motor casing
Body flange is connected, is connected by support adpting flange with being fixed on the flange bracket of frame top；The output end
Fixed coupling flange, output end outside housing, and the output end housing is by inside coupling flange, output end and the reel
Flange reel flanges are connected；Dead block axle in the supporting plate, the other end of the spool shaft extend and passed through laterally
Bearing is arranged on the bearing block of frame top.
Preferably, the brake component is special-shaped brake component, and its profile is the part circular using centre bore as the center of circle and part
The involute in form of off-centre operation composition；Continuous groove is machined with the brake area of the brake component.
Preferably, the frame medial center is arranged symmetrically guide pipe, in running above and below ballast box in frame
Guiding, the side of the weight box body is provided with multiple directive wheels.To reduce level of the ballast box directive wheel to leading truck
Pressure, it is oriented to the tangent to periphery after reel winding belt and is alignd with the center line of guide pipe.
Preferably, the power set are each attached on power set bottom plate, the power set bottom plate by bolt with
The top plate connection of frame；The power set bottom plate is " Qian " shape, and the top plate of the frame is " mouth " shape, is reserved for installation operation
Space.When i.e. " Qian " shape power set bottom plate is installed to " mouth " shape frame top plate, it is corresponding that operating personnel may stand in frame bottom plate
Position operated.
Preferably, the reel includes the front and rear guiding reel and parent roll being arranged in juxtaposition；One end of the well head belt
Fixation is wrapped on parent roll, is then passed around and is connected well head polished rod eye after being oriented to reel.I.e. because during upstroke, well head skin
The number of plies with winding gradually increases, and the circle diameter of belt outer rim becomes larger, and is gradually deviated from along the tangent line of cylindrical vertical direction
Wellhead polish rod position.To cause well head belt to be directed at well head all the time, installation is oriented to reel side by side on the outside of parent roll.
Preferably, built-in decelerator output end is integrated with tubular shell, for example can select as planetary gear reduction
Fast device, planet-cycloid reducer etc.；Further preferably, the decelerator is planetary reducer, and the planetary gear reduction
The sun gear of fast device is sleeved on the input shaft, the output end enclosure interior be provided with ring gear and by planetary gear with it is described
Sun gear is connected.
Preferably, heat emission hole is processed respectively in the inner flange and supporting plate, multiple edges are provided with the outside of the supporting plate
It is in axially diagonally disposed gusset.
Preferably, the fall arrest counterweight lower box part connects common ballast box, the fall arrest ballast box and common counterweight
Case is contained with balancing weight.
Preferably, the base is made up of hinged preceding base with rear base, before the frame is fixed on base,
Ladder and the switchable door being movable into and out for the balancing weight in frame, ladder conduct are respectively equipped with the frame side
The lower channel that power set installation is safeguarded；Because the center of gravity of power set is more forward, therefore between frame and rear base
The adjustable diagonal brace of installation length, for tensing frame, strengthen the rigidity of frame and prevent from toppling in oil pumping process.
The braking procedure of the present invention is as follows：
During oil pumper normal work, the brake block of the electro-hydraulic brake device of brake and spool shaft in motor opens, with system
Moving plate or braked wheel keep gap, do not produce braking action.
It is artificial to shut down.When carrying out oil pumper debugging maintenance, workover treatment etc., it is necessary to safe shutdown, and ensure in down period
Between polished rod, counterweight transfixion.Under debugging mode, when turning off electrical source of power, the brake in motor closes automatically, clamping motor
Tailing axle brake disc.Meanwhile the electro-hydraulic brake device at drum shaft closes, two brakes at the top of oil pumper are braked simultaneously, to carry
Height is braked ageing.
Power-off is shut down.When power supply network, which breaks down, to be powered off, operating oil pumper can stop suddenly, and staff can not
Operation brake switch in time.Now, the brake in motor can produce braking action in time.Meanwhile the electro-hydraulic system in spool shaft
Dynamic device is closed automatically, and the brake disc or braked wheel of tail end are acted.It is electro-hydraulic on motor inner brake and spool shaft
Under the effect of brake double brake, polished rod and balancing weight stop motion.
The fall arrest process of the present invention is as follows：
During oil pumper normal work, ballast box is connected by load-bearing pull bar with counterweight belt, and spring is in compressive state,
Certain interval is kept between brake block and frame.
Counterweight belt disconnects.When counterweight belt fracture, bearing pin come off or fastening at release, spring force effect under,
Load-bearing pull bar moves down.The rack moved down promotes drive to rotate, and drivening rod is outer in the horizontal direction to be moved.The connecting rod of outer shifting promotes different
Shape moving part is rotated around pivot, and special-shaped brake component is pressed in frame, starts to produce friction brake force, the downslide of ballast box
Speed starts to slow down.During ballast box glides, due to special-shaped brake component eccentric outer rim and frame friction, special-shaped brake component continues
Rotated around pivot, braking block edge moves along level is outer, and brake force gradually increases, and ballast box gliding speed slows down gradually, directly
Stopped gliding to ballast box.Avoid ballast box from producing the movement of falling object, injure the preceding base and concrete pedestal of frame by a crashing object.
The operation principle of special-shaped brake component action is that drive, swing rod, two pitch-rows of special-shaped brake component are equal, with drawing
Two parallelogram in parallel are formed between bar, casing ear mount, according to the characteristic of parallelogram, a hypotenuse gradient becomes
During change, same change occurs for the gradient of another hypotenuse, keeps four sides parallel two-by-two.Therefore when the hypotenuse pendulum where drive
During dynamic certain angle, the hypotenuse where hypotenuse and special-shaped brake component where swing rod equally swings corresponding angle.
When needing counterweight belt to repair, load-bearing pull bar is above carried, the spring on load-bearing pull bar, which is pressurized, to be shortened, load-bearing pull bar phase
Moved up for ballast box.The rack drives drive moved up rotates backward, drivening rod interior shifting in the horizontal direction.Inwardly translate
Connecting rod pulls special-shaped brake component to be rotated around pivot opposite direction, and special-shaped brake component progressively disengages frame, and brake force releases.
In braking procedure is fallen in the operation of oil pumper and counterweight, the directive wheel of ballast box is flat up and down along frame guide pipe
Steady operation.During fall arrest, because four brake block are arranged symmetrically, be not in the brake force difference of casing both sides too
Ballast box rollover caused by big.
The present invention takes the double brake mode of electric machine built-in braking and electro-hydraulic brake, improves the validity of braking；Together
When, ballast box has anti-falling mechanism, prevents disconnected take off of belt from causing counterweight freely falling body；With drive path is short, operating efficiency
High, the advantages that security is good.
Brief description of the drawings
The structural representation of Fig. 1 an embodiment of the present invention；
The structural representation of Fig. 2 frames；
The structural representation of Fig. 3 ballast boxes；
Fig. 4 fall arrest ballast box structural representations；
The appearance schematic diagram of the drive of three kinds of shapes of Fig. 5-7；
The structural representation of Fig. 8 abnormity brake components；
The operation principle schematic diagram of Fig. 9 fall arrest ballast boxes；
The structural representation of Figure 10 power set；
The appearance schematic diagram of the built-in decelerators of Figure 11；
The structural representation of Figure 12 parent rolls；
The appearance schematic diagram of Figure 13 power set bottom plates；
The appearance schematic diagram of Figure 14 frame top plates；
The control system flow chart of Figure 15 long stroke direct drive pumping units
In figure：Rear base 1；Frame 2, preceding base 21, girder 22, lower connection ear mount 23, iron gate 24, guide pipe 25, ladder
26, upper connection ear mount 27, frame top plate 28；Ballast box 3, connecting plate 301, directive wheel 302, casing 303, load-bearing pull bar 304, bullet
Spring cylinder 305, holddown spring 306, special-shaped brake component 307, stock 308, ear mount 309, rack 310, drive 311, swing hole
3111, center rotating hole 3112, pull bar 312, swing rod 313, ear mount 314；Counterweight belt 4；Well head belt 5；Power set 6, move
Power apparatus bottom plate 61, electro-hydraulic brake device 62, brake disc 63, parent roll 64, inner flange 641, built-in decelerator 642, input
Axis hole 6421, motor flange adpting flange 6422, support adpting flange 6423, coupling flange, output end 6424, supporting plate 643,
Gusset 644, spool shaft 645, outer baffle 646, cylinder 647, motor 65, support 66, it is oriented to reel 67, bearing block 68；Guardrail 7；
Diagonal brace 8.
Embodiment
In conjunction with accompanying drawing, the present invention is further illustrated.
It is long stroke direct drive pumping unit provided by the invention with reference to Fig. 1.It includes rear base 1, frame 2, ballast box 3, matched somebody with somebody
The parts such as pipe band 4, well head belt 5, power set 6, guardrail 7, diagonal brace 8, switch board.
The well head belt 5 of the long stroke direct drive pumping unit of the present embodiment is placed in the middle, is flame retardant rubber band, width 360mm, and one
Root, fixation are wrapped on parent roll, lower end connection wellhead polish rod；Counterweight belt 4 is symmetrically mounted on well head belt both sides, width
180mm, two, opposite direction is fixed and is wrapped on parent roll, lower end connection ballast box 3.Between belt and parent roll using bolt+
The mode of pressing plate is fixed.Switch board is arranged on oil pumper rear base or on neighbouring ground.Power set 6 are only as one
Vertical module, installed in the top of frame 2.Fixed after frame 2 is vertical with support bolt, on the concrete pedestal in well site.
Built-in decelerator connection in the motor and parent roll of power set, is oriented to reel 67 with being arranged in juxtaposition before and after parent roll 64.
One end of well head belt 5 is fixed and is wrapped on the parent roll 64 of power set, around connection well head polished rod eye after reel 67 is oriented to.
One end opposite direction of counterweight belt 4, which is fixed, is wrapped in parent roll 64, is connected with the fall arrest ballast box in frame.Because power fills
The center of gravity put is more forward, the adjustable diagonal brace 8 of installation length between frame 2 and rear base 1, for tensing frame 2, strengthens frame
Rigidity and prevent from toppling in oil pumping process.
With reference to Fig. 2, for the frame 2 of long stroke direct drive pumping unit.It include preceding base 21, girder 22, it is lower connection ear mount 23,
Iron gate 24, guide pipe 25, ladder 26, upper connection ear mount 27, frame top plate 28.
The frame main beam 22 of the present embodiment uses H steel, base 21 before the bottom welding of two girders, upper end welding stand top
Plate 28, frame top plate 28 are " mouth " shape.Preceding base 21 and the hinge connection of rear base 1；Ladder 26 is arranged on rear side of frame, as dynamic
The lower channel that power apparatus installation is safeguarded, corresponding iron gate 24 are welded with the ladder consistent with ladder size.On the inside of girder
Guide pipe 25 is centrosymmetrically arranged, using the pipes of φ 60, for the guiding in running above and below ballast box in frame.To reduce
Ballast box directive wheel is to the horizontal pressure force of leading truck, the center line of the tangent to periphery and guide pipe 25 that are oriented to after reel winding belt
Alignment.
With reference to Fig. 3, for the structural representation of ballast box 3 of long stroke pumping unit.It includes fall arrest ballast box and following one
Individual or multiple common ballast boxes.Directive wheel 302 is symmetrically installed on casing.Wherein, fall arrest ballast box have concurrently hold balancing weight and
Anti-falling function, common ballast box only have the function of holding balancing weight.
The ballast box gross weight of the present embodiment is 7.5t, and maximum weight is after wherein fall arrest ballast box fills balancing weight
5t, maximum weight is 5t after common ballast box fills balancing weight, counterweight number of blocks is adjusted after measured motor electric current, until up-down stroke
Electric current it is basically identical.
It is fall arrest ballast box structural representation with reference to Fig. 4.It includes connecting plate 301, directive wheel 302, casing 303, held
Weight pull bar 304, spring strut 305, holddown spring 306, special-shaped brake component 307, stock 308, ear mount 309, rack 310, drive
311st, the part such as pull bar 312, swing rod 313, ear mount 314.
The upper end of load-bearing pull bar 304 is connected by connecting plate 301 with counterweight belt 4；The processing one of the interlude of load-bearing pull bar 304 is convex
Platform, holddown spring 306 is housed between boss and the spring strut 305 being fixed on casing；Symmetrical two of the lower end of load-bearing pull bar 304 is flat
Rack 310 is installed respectively, the drive 311 in bottom half ear mount is engaged with rack 310, and rack 310 is erected on face
Translation turn is changed to the transverse shifting of connecting rod.The preceding hole of pull bar 312 and the hinge connection of swing hole 3111 of drive 311, center
Rotation hole 3112 and the hinge connection of swing rod 313, the hinge connection of exit orifice 3072 of the metapore of pull bar 312 and special-shaped brake component 307.System
The centre bore 3071 of motion block is connected through the hinge in the ear mount of body side.
Drive 311, swing rod 313, two pitch-rows difference of special-shaped brake component 307 are equal, with pull bar 312, casing ear mount
Between formed two parallelogram in parallel.
Be drive appearance schematic diagram with reference to Fig. 5-7, can use a variety of concrete forms, the part of drive 311 or
Whole gabarits are gear.It has the double action of gear and swing rod concurrently.The center of drive 311 is machined with rotation hole, outside processing
There is swing hole.Drive 311 is engaged with the rack 310 on load-bearing pull bar 304, and rack vertical shift is converted into connecting rod
Transverse shifting.
What the fall arrest ballast box of the present embodiment used accounts for the 5/8 of circumference with the gear parts of center rotating hole 3112, tooth
It is 3 to take turns modulus, reference diameter 80mm.Circumference where swinging hole 3111 is 100mm.
It is special-shaped retaining structures schematic diagram with reference to Fig. 8.Special-shaped brake component 307 includes special-shaped brake bracket and friction catch
Block two parts.Brake holder gabarit can select the off-centre operation or evolvent type structure using centre bore as the center of circle, abnormity braking
Part is symmetrically installed along the center line of casing, and to avoid frame guide pipe, the brake block per side is right centered on frame guide pipe
Claim arrangement.The shape that the present embodiment brake bracket profile forms for the part circular and part off-centre operation with centre bore 3071 for the center of circle
Shape, outside are machined with the exit orifice 3072 of cylinder lever connecting rod.
The selection of friction catch block has higher coefficient of friction between elastomeric material, with steel surface, can bear larger
Deformation quantity；The friction catch block of the special-shaped brake component 307 of the present embodiment is synthetic rubber, thickness 20mm, can be produced during extruding
Raw larger deformation quantity.
It is fall arrest ballast box fundamental diagram with reference to Fig. 9.During oil pumper normal work, counterweight belt 4 is in and tightens shape
State.Spring 306 among load-bearing pull bar 304 is in impaction state, and rack 310 is positioned at topmost, the outer rim of special-shaped brake component 307
15mm or so gap is kept with the girder H steel of frame 2.
When belt is disconnected de-, load-bearing pull bar 304 moves down relative to casing 303, promotes the transmission engaged with rack 310
Wheel 311 rotates, and the horizontal outer shifting of pull bar 312, promotes special-shaped brake component 307 to be rotated around centre bore.The special-shaped outer rim of brake component 307 is horizontal
Contacted after outer shifting with the girder H steel of frame 2, produce brake drag effect.Due to special-shaped brake component 307 and the girder H steel of frame 2
Frictional force acts on, and special-shaped brake component 307 continues around center rotating, and corresponding friction brake force gradually increases, under ballast box 3 stops
OK.
The operation principle that special-shaped brake component 307 acts is drive 311, swing rod 313, two holes of special-shaped brake component 307
Away from equal, two parallelogram in parallel of formation between pull bar, casing ear mount, according to the characteristic of parallelogram, one tiltedly
When side gradient changes, same change occurs for the gradient of another hypotenuse, keeps four sides parallel two-by-two.Therefore drive is worked as
When hypotenuse where 311 swings certain angle, the hypotenuse where hypotenuse and special-shaped brake component 307 where swing rod 313 is equally put
Move corresponding angle.
When needing counterweight belt 4 to repair, load-bearing pull bar 304 is above carried, the holddown spring 306 on load-bearing pull bar 304 is pressurized
Shorten, load-bearing pull bar 304 moves up relative to ballast box 3.The rack 310 moved up drives drive 311 to rotate backward, and drives pull bar
312 interior shiftings in the horizontal direction.312 inwardly translated pull special-shaped brake component 307 to be rotated around pivot opposite direction, abnormity braking
Part 307 progressively disengages frame 2, and brake force releases.
In braking procedure is fallen in the operation of oil pumper and counterweight, the directive wheel 302 of ballast box 3 is along frame guide pipe 25
Upper and lower even running.Be not in the brake force of casing both sides because four brake block are arranged symmetrically during fall arrest
The too big caused ballast box rollover of difference.
With reference to Figure 10, power set schematic diagram.It includes power set bottom plate 61, electro-hydraulic brake device 62, brake disc 63, big
The parts such as reel 64, motor 65, support 66, guiding reel 67, bearing and bearing block 68.The one end of spool shaft 645 and power set
Connected between bottom plate 61 by bearing block 68, the other end is connected by support 66 with power set bottom plate 61.Spool shaft 645 is installed
There is a brake disc 63, electro-hydraulic brake device 62 is installed corresponding on power set bottom plate 61.
The external diameter of brake disc 63 of the present embodiment is the external diameter φ 600mm of φ 900mm ＞ parent rolls 64, due to braking the arm of force compared with
Greatly, at the same brake disc two electro-hydraulic brake devices 62 of front and rear arrangement, it is necessary to electro-hydraulic brake type number it is smaller.
Being oriented to reel 67 can be front and rear fixed, is easy to the centering well head of well head belt 5., can be by rear during well workover
The mode for moving guiding reel avoids well head.
With reference to Figure 11, built-in decelerator appearance schematic diagram.Built-in decelerator includes input I, output end II two
Point.Be machined with the input shaft of input input shaft bore 6421, input end housing on be machined with motor flange adpting flange 6422
With support adpting flange 6423, the output end of tubular is machined with coupling flange, output end 6424.The deceleration of built-in decelerator passes
Dynamic form includes but is not limited to planetary gear type.This example uses planetary gear type type of belt drive, sun gear and input axis connection,
Housing with ring gear is output end.
With reference to Figure 12, shown parent roll structural representation.It includes inner flange 641, built-in decelerator 642, branch
Fagging 643, gusset 644, spool shaft 645, outer baffle 646, cylinder 647, motor 65, support 66.Electric machine casing subtracts with built-in
Fast device inputs end flanges（That is motor flange adpting flange 6422）Connection, motor shaft are connected to the input shaft bore of built-in decelerator
On 6421.The output end II of built-in decelerator is arranged on the inner flange of parent roll one end by coupling flange, output end 6424
On 641, input I passes through support 66（Flange connects）It is fixed on power set bottom plate 61.
The a diameter of 660mm of parent roll of the present embodiment, to strengthen bearing capacity, two pieces of supporting plates 643 are arranged in parent roll,
Spool shaft 645 is welded respectively with two pieces of supporting plates 644.
The built-in long time running of decelerator 642, case temperature can raise, on inner flange 641 and supporting plate 643 respectively
Process heat emission hole.Meanwhile the gusset 644 of outer baffle is in vertically diagonally disposed, in rotation process, diagonally disposed gusset can
Strengthen the circulation of air.
Motor 65 is using the frequency control motor with inner brake.Frequency control is applicable to, it is in short-term or discontinuously all
Phase operation, the occasion for frequently playing braking.
It is power set bottom plate 61 and the profile contrast schematic diagram of frame top plate 28 with reference to Figure 13-14.Shown " Qian " shape is moved
When power apparatus bottom plate 61 is installed to " mouth " shape frame top plate 28, the frame of the back of frame top plate 28 is vacated.In the shape of machine frame erection
Under state, operating space is reserved for installation or removal power set.
It is long stroke pumping unit control system flow chart with reference to Figure 15.There are debugging mode or working condition selective.
Under debugging mode, the upstream or downstream by the way of crawl so that polished rod and ballast box are accurately parked in required position,
It is easy to complete regulation travel switch position, hangs the operations such as counterweight, installation tester.
Under working condition, the operation of control system controlled motor.When test is to operation stop, position sensor is to control
System sends signal, and control system controlled motor rotating speed is reduced, stopped, inverted running.Controlled motor rotating speed, realize up and down it is synchronized,
On soon under slow etc., the needs for the production that adapts to recover the oil.
It is only the exemplary embodiments of the present invention above, for those skilled in the art,
Without departing from the principles of the invention, it is possible to partial structurtes are made with some improvements and modifications, these improvements and modifications
It should be regarded as protection scope of the present invention.
Claims (10)
1. a kind of long stroke direct drive pumping unit with double brake and counterweight anti-falling function, including base and vertical thereon
The frame of setting, the top installation power set of the frame, what can be moved back and forth up and down along it installed in the inside of the frame
Ballast box, the power set include drive mechanism and are driven by it the reel of rotation, and positive direction, which is fixed, on the reel twines
Winding counterweight belt, the lower end connection ballast box of the counterweight belt are fixed around well head belt, opposite direction；On the power set
Provided with brake apparatus；It is characterized in that：
The ballast box is fall arrest ballast box, and it includes casing and runs through the load-bearing pull bar of casing from top to bottom, described to hold
The upper end of weight pull bar is connected with counterweight belt, rack is symmetrically installed at left and right sides of lower end or is processed as rack structure；It is described
Fixed spring cylinder in casing, the load-bearing pull bar interlude process a boss, holddown spring and compression are provided with the spring strut
Spring housing in the middle part of the load-bearing pull bar, the lower end of the holddown spring and the boss against, upper end and spring strut against；It is described
Casing is symmetrically mounted at the bottom of two parallel-crank mechanisms, and each parallel-crank mechanism includes drive, swing rod, pull bar
And ear mount；Wherein described ear mount includes being fixed on the interior ear mount of bottom half and outer ear mount side by side, and the two forms parallel four side
The upper horizontal sides of shape mechanism；The drive includes the gear parts with center rotating hole and the pendulum positioned at its neighboring
Dynamic hole, the drive are hinged to form parallel-crank mechanism hypotenuse by center rotating hole and the interior ear mount,
The upper end of the swing rod is be hinged with outer ear mount and forms another hypotenuse of row quadrangular mechanism；The both ends of the pull bar respectively with
The lower end of swing rod, the swing hole of drive connect and form the lower horizontal sides of parallel-crank mechanism；
The both sides of the casing are symmetrically installed brake component, and the brake component includes the braking with centre bore and neighboring exit orifice
Block, the centre bore and casing are hinged at, and the exit orifice and the outer end of the pull bar are hinged；The brake block is provided with
Brake area corresponding with the inner surface of the frame, and when the brake area contacts with frame inner surface, the two energy
Enough form frictional fit；
The load-bearing pull bar lower end is realized to engage with the drive on the inside of two parallelogram respectively by the rack of both sides matches somebody with somebody
Close；
The drive mechanism, which includes motor and the decelerator being connected with it, the brake apparatus, includes the built-in system of motor
Dynamic device and the electro-hydraulic brake device for spool shaft braking.
2. there is the long stroke direct drive pumping unit of double brake and counterweight anti-falling function, its feature according to claim 1
It is：The decelerator is to be arranged at the built-in decelerator inside reel, the input of the built-in decelerator and output
End is coaxial, wherein the input shaft of the motor is connected with the input of built-in decelerator, the output of the built-in decelerator
End is connected with reel.
3. there is the long stroke direct drive pumping unit of double brake and counterweight anti-falling function, its feature according to claim 2
It is：The reel axially inside fixes inner flange, supporting plate successively；The built-in decelerator includes geo-stationary
End housing and the output end housing of relative rotation are inputted, input shaft, and the input shaft one are installed in the input end housing
End drive connection motor output shaft, the other end drive connection output end housing；It is fixed with successively outside the input end housing
Motor connection flange, support adpting flange, and the input end housing is coordinated by motor connection flange and electric machine casing flange
Connection, pass through support adpting flange and the flange bracket mating connection for being fixed on frame top；It is fixed outside the output end housing
Coupling flange, output end, and the output end housing passes through the inner flange flange inside coupling flange, output end and the reel
It is connected；Dead block axle in the supporting plate, the other end of the spool shaft extend and are arranged on by bearing laterally
On the bearing block of frame top.
4. there is the long stroke direct drive pumping unit of double brake and counterweight anti-falling function, its feature according to claim 1
It is：The brake component profile is the part circular using centre bore as the center of circle and the involute in form that forms of part off-centre operation；Institute
State and continuous groove is machined with the brake area of brake component.
5. there is the long stroke direct drive pumping unit of double brake and counterweight anti-falling function, its feature according to claim 1
It is：The frame medial center is arranged symmetrically guide pipe, described for the guiding in running above and below ballast box in frame
The side of weight box body is provided with multiple directive wheels.
6. there is the long stroke direct drive pumping unit of double brake and counterweight anti-falling function, its feature according to claim 1
It is：The power set are each attached on power set bottom plate, and the power set bottom plate passes through bolt and the top plate of frame
Connection；The power set bottom plate is " Qian " shape, and the top plate of the frame is " mouth " shape.
7. there is the long stroke direct drive pumping unit of double brake and counterweight anti-falling function, its feature according to claim 1
It is：The reel includes the front and rear guiding reel and parent roll being arranged in juxtaposition；One end of the well head belt is fixed and is wrapped in
On parent roll, then pass around and connect well head polished rod eye after being oriented to reel.
8. there is the long stroke direct drive pumping unit of double brake and counterweight anti-falling function, its feature according to claim 3
It is：Heat emission hole is processed on the inner flange and supporting plate respectively, is provided with the outside of the supporting plate multiple vertically in oblique
The gusset of arrangement.
9. there is the long stroke direct drive pumping unit of double brake and counterweight anti-falling function, its feature according to claim 1
It is：The fall arrest counterweight lower box part connects common ballast box, and the fall arrest ballast box and common ballast box are contained with
Balancing weight.
10. there is the long stroke direct drive pumping unit of double brake and counterweight anti-falling function, its feature according to claim 1
It is：The base is made up of hinged preceding base with rear base, before the frame is fixed on base, the frame side
Ladder and the switchable door being movable into and out for the balancing weight in frame are respectively equipped with face；The frame and rear base it
Between the adjustable diagonal brace of installation length.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510687496.9A CN105275434B (en) | 2015-10-21 | 2015-10-21 | A kind of long stroke direct drive pumping unit with double brake and counterweight anti-falling function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510687496.9A CN105275434B (en) | 2015-10-21 | 2015-10-21 | A kind of long stroke direct drive pumping unit with double brake and counterweight anti-falling function |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105275434A CN105275434A (en) | 2016-01-27 |
| CN105275434B true CN105275434B (en) | 2018-01-09 |
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|---|---|---|---|
| CN201510687496.9A Active CN105275434B (en) | 2015-10-21 | 2015-10-21 | A kind of long stroke direct drive pumping unit with double brake and counterweight anti-falling function |
Country Status (1)
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| CN (1) | CN105275434B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106931110B (en) * | 2017-04-28 | 2023-08-01 | 桂林电子科技大学 | Chain tensioning adjustment mechanism |
| CN109973055A (en) * | 2019-04-30 | 2019-07-05 | 雪曼圣杰科技有限公司 | Pumping unit |
| CN116006600B (en) * | 2023-03-23 | 2023-07-21 | 山东高原油气装备有限公司 | Electric control reversing energy-saving mute oil pumping unit |
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|---|---|
| CN105275434A (en) | 2016-01-27 |
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Effective date of registration: 20210108 Address after: No.171 Fenhe Road, Dongying District, Dongying City, Shandong Province 257091 Patentee after: Shandong Plateau oil and gas equipment Co.,Ltd. Address before: No.232, South 1st Road, Dongcheng, Dongying City, Shandong Province 257091 Patentee before: SHENGLI OILFIELD HIGHLAND PETROLEUM EQUIPMENT Co.,Ltd. |
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