CN209430173U - A kind of force measurement type Multifunctional tower type pumping unit - Google Patents

Abstract

The utility model discloses a kind of force measurement type Multifunctional tower type pumping unit, the tower-type pumping unit takes the underlying mode of drive system, threephase asynchronous machine is by speed reducer band movable sprocket reciprocating rotary, chain is connected by dynamometry switching device with two groups of front and back wirerope, preceding wirerope group is pumped by front jocket wheel group up and down reciprocatingly to be acted, and rear wirerope group keeps ballast box servo-actuated up and down by rear guide wheel group.The mode that chain is combined with wirerope can effectively improve rope service-life, while be conducive to lose to carry protection.Tower top is equipped with resigning mechanism, and when workover treatment, the driving motor for controlling top, which draws high leading set mechanism, steps down；When installation or maintenance, realize that the front and back of polished rod eye position is finely tuned by the micromatic setting of front jocket wheel group mechanism end.Pylon is equipped with unloading and hangs picking device, avoids unloading and hangs the trouble for needing crane operation when taking out.Upright guide rail cooperation on the directive wheel and pylon of ballast box two sides is vertically directed.

Description

A kind of force measurement type Multifunctional tower type pumping unit

Technical field

The utility model is a kind of force measurement type Multifunctional tower type pumping unit, belongs to electromechanical integration new application.

Background technique

According to incompletely statistics, the whole world has more than 150 ten thousand mouthfuls of mechanical oil well at present, wherein traditional double leval jib beam type oil pumping Machine accounts for 90% or so, becomes the leading type of mechanical oil recovery.Compared with traditional double leval jib beam pumping unit, Balance is vertical Oil pump energy-saving 30-70%, material saving 30-60%, do not shut down intelligence ginseng are adjusted to improve work efficiency and be greater than 1000 times, be suitable for long stroke, low The working system of jig frequency, maintenance workload reduce 60% or more, these apparent technical advantages determine the vertical pumping of Balance The development trend of the big substituted traditional double leval jib beam pumping unit of oil machine.But summarize the development course of nearly 30 years pumping units, skill The so apparent Balance vertical oil-pumping machine of art advantage is still in middle and small scale and promotes the stage, fails to connect tradition four always Bar beam pumping unit replaces, analysis the reason is as follows that:

Operation is stepped down convenient and efficient not as good as traditional double leval jib beam pumping unit.The patent No. 201520382742.5 authorizes " top direct-driving type pumping unit " guide rail and rolling assembly are set below complete machine, driven when needing to step down with crank rotation roller Dynamic complete machine is mobile, for manually mode, operation difficulty are relatively large." the electric moving that Patent No. 201210275729.0 authorizes Hung with unloading and take out linkage electric-machine directly-driven vertical oil-pumping machine " also take overall movement to step down, although being changed to electronic displacement mode, The mobile mode of above-mentioned complete machine illustrates that base foundation is not strong from another point of view, and rigidity is insufficient, and Yi Fasheng walks, and leads to sucker rod It is worn with oil pipe, sucker rod mouth is further made to shift.In addition, needing special messenger and special equipment in complete machine moving process, consume Take manpower and material resources, increases workover cost.Patent No. 03106960.6 authorize " swing arm formula vertical oil-pumping machine " and There is resigning in " a kind of vertical oil-pumping machine well workover resigning mechanism " that Patent No. 201210353315.5 authorizes in mechanism top design Mechanism is stepped down by collapsing guide wheel, improves the problem of operation is stepped down, however in above two structure connector compared with More and do not consider the problems of sucker rod position correction, i.e., the position of resigning mechanism at work is fixed, in actual motion mistake Cheng Zhong, due to wearing for a long time, sucker rod can generate a certain amount of eccentric wear, therefore can adjust the position of polished rod eye to adapt to Well head is also highly important, while the measure also can be improved the efficiency of installation and debugging.The patent No. 201620410210.2 is awarded " a kind of compound resigning device of novel tower-type pumping unit " and the patent No. 201410474694.2 of power authorize " a kind of tower Linear oil pumping machine " takes lead screw to carry out the resigning of drawer type, while can finely tune, but efficiency owes height.It is badly in need of exploitation at present It steps down the novel vertical pumping unit high-efficient, simple and reliable for structure, polished rod eye position is fine-tuning.

Lose the life problems for carrying protection and driving rope.The current kind of drive mainly has wire rope gearing, V belt translation, chain It is driven several.When V belt translation, the belt slippage of suspended counterweight case and sucker rod is common deficiency, and furthermore the service life of transmission belt is opposite Low, whole drive mechanism size is big, low efficiency.Wire rope gearing carrys out passing movement by the frictional force between rope and sheave.Steel Cord skids in slot, eccentric wear, rolls about, and will gradually generate abrasion, in addition, chronic position frequent occurrence between wirerope and rope sheave It moves, in addition the effect of vibration, impact, wire quality is easily damaged, generates fracture of wire.But wirerope itself has biggish intensity, energy It is good, at low cost enough to absorb impact load, flexibility." the vertical pumping of Duo Shengjun power thick stick promotion that the patent No. 200920304111.6 authorizes Oil machine " improves the service life of rope more by the way of restricting, and improves reliability of operation and stability.Chain conveyer then passes It passs that power is big, simple for structure, overload capacity is strong, protection can be played the role of when losing and carrying, and can adapt to adverse circumstances, but It is noted that the problem of lubrication and anti-fall off chain.Presently relevant patent also takes chaindriven mode, most installation, lubrication, Maintenance needs high altitude operation, maintenance cost are larger." the chain guide wheel formula pumping unit " that the patent No. 201310357942.0 authorizes is adopted Chain conveyer has been taken to add the mode of wire rope gearing, although being conducive to improve rope service-life, there is no consider for a combination thereof mode Lose the problem of carrying protection.Currently, the protection of vertical oil-pumping machine mistake load is reliable not as good as traditional double leval jib beam pumping unit, therefore, such as What combines the advantage of chain conveyer and wire rope gearing respectively, solves its disadvantage, and pumping unit is made to be driven simple and reliable, the driving member service life It improves and has mistake load defencive function very significant.

Unloading, which is hung, takes out and power of motor problem.After pumping unit, which starts, to be run, since there are clump weight, motor is primarily subjected to 1/2 oil weight and associated resistive, the power needed are not very big, but in order to undertake load and reply when unloading is hung and taken out by hindering Power is mutated load caused by (interference such as formation paraffin in oil well), is still equipped with heavy-duty motor on pumping unit.Power of motor Not enough, then it needs to bring unnecessary trouble to scene, and increase maintenance cost by crane when unloading is hung and taken out.Therefore, If other schemes can be taken to reduce the power of groundwork motor, and can be when unloading is hung and taken out by the dynamic of own system Power can greatly reduce the operation expense of pumping unit.

In addition, traditional oil pumping method does not account for load mutation problems, i.e., taken out in oil pumping when load suddenly change The mode of oil does not adjust still, and in this case, sucker rod, wirerope etc. easily reduce service life.If can real-time detection Load variation when oil pumping, then can improve the flatness of Pumping action by control method, and extend critical component uses the longevity Life.By the real-time detection of load, the countermeasure being also beneficial under or even stuck state excessive to sucker rod load is ground Study carefully.

The utility model will be according to the above problem, and load force can be surveyed in real time by researching and developing one, and collection loses and carries protection, well workover allows The Multifucntional tower-type pumping unit that the functions such as pumping are integrated is hung in position, sucker rod fine position, unloading.

Utility model content

The purpose of this utility model is to provide a kind of force measurement type Multifunctional tower type pumping units, to realize the protection of mistake load, repair The functions such as pumping are hung in well resigning, polished rod eye fine position, unloading, have the characteristics that pumping unit energy-efficient, safe and reliable.

In order to achieve the above objectives, the solution of the utility model is: a kind of force measurement type Multifunctional tower type pumping unit, packet It includes the drive system being placed on rack upper bed-plate and is placed in realization Pumping action, well workover resigning, sucker rod position on rack roof panel Three kinds of functions of fine tuning are set in the resigning mechanism of one and after being placed on rack roof panel and connecting transmission system and balance weight mechanism Picking device is hung in guide wheel group and the unloading for being placed in rack roof panel.

Resigning mechanism is mainly used for well workover displacement, and purpose of design is that bring is time-consuming and laborious to ask in order to avoid complete machine moves Topic, is further reduced maintenance cost.The feature of retreating mechanism are as follows: the resigning mechanism passes through first in normal oil pumping operation Front jocket wheel and the conduction driving rope movement of the second front jocket wheel, the front jocket wheel are steel wheel or high-intensitive oil-free self lubrication MC nylon Wheel, outer round surface are multiply around rope groove, two guide wheel composition figures of first front jocket wheel and each freedom of the second front jocket wheel or two A above guide wheel composition, is symmetrically distributed on the first gear frame, and further, the first gear frame is equipped with clamping frame and is fixed on it On rope guarding plate prevent wirerope from disengaging guide wheel in the process of running, the first gear frame is equipped with a resigning hanging ring by allowing Position driving rope is connected with the resigning driving motor being placed at the top of suspension.First gear frame end is equipped with micro-adjusting mechanism, further, the It is connected between one gear frame and the second gear frame by revolute pair, is connected between the second gear frame and rack by resigning bearing, this Outside, which is equipped with a micro-adjusting mechanism, and the micro-adjusting mechanism includes the first retaining groove of the first gear frame end, in rack Second retaining groove and fine adjustment screw, fine adjustment screw are finely tuned by contacting after the threaded hole precession on the second retaining groove with the first retaining groove Screw can need to be arranged multiple according to stress.According to above scheme, the length for adjusting fine adjustment screw into the second retaining groove can be moved Dynamic first gear frame, to change the position of polished rod eye.

Rack is truss structure, and rack is equipped with the upright guide rail for ballast box guiding, is used for installation site sensor Sensor mounting plate, bottom be equipped with buffer unit prevent ballast box from impacting.The position of adjustment sensor can change stroke, because And it is step-less adjustment mode.Buffer unit takes rubber pad mode, or takes energy storage equipment such as groups of springs, hydraulic system.

The transmission system is wirerope and sprocket wheel Composite Transmission, and driving rope is connect with oil well load by polished rod eye, passed through Cross the first front jocket wheel and the second front jocket wheel, be connected by the first dynamometry switching device with chain, chain from chain wheel drive carry out toward Multiple movement.Driving rope end connects polished rod eye, and similar, chain is connected by the second dynamometry switching device with counterweight rope, counterweight Guide wheel group connects ballast box after rope warp.The driving rope is equipped with two strands or multiply, first dynamometry on each guide wheel Switching device plays the role of dynamometry and transmission switching, and the first load cell and the are symmetrically arranged between splicing plate and chain link plate Two load cells, splicing plate side be equipped with splicing hanging ring, chain link plate side be equipped with chain link hanging ring, the second dynamometry switching device with First dynamometry switching device structure is identical.

Guide wheel group is similar with the leading wheel group structure of resigning mechanism afterwards, takes the guide wheel composition of two groups of Parallel Symmetric distributions, Guide wheel is fixed on rear wheel frame by bearing block.

It mainly includes carry truss that picking device is hung in the unloading, is provided with carry ring, electric hoist between the carry truss It is hooked on carry ring by carry, when needing to unload, carry rope is connected on the carry ring on ballast box, electric hoist fortune Turn the rising of pulling ballast box.

Balance weight mechanism is mainly made of ballast box, guide wheel group, guiding pinboard, upright guide rail, and ballast box by leading vertically Rail progress is vertically oriented, and ballast box is equipped with unloading ring and connects carry rope for unloading when extension is taken out.

Above technical scheme is taken, the utility model:

(1) by previous rope drive or chain conveyer Integration Design at rope, the mode of chain mixed drive, it can extend steel wire The service life of rope, but also with the function of losing load protection.

(2) it detects the stress in oil pumping reciprocatory movement by device for measuring force to change, during research pumping unit Load change, and promote oil pumping performance and prepare.

(3) in well workover, the utility model devises resigning mechanism, which is not only simple in structure, and transmission efficiently, also has For fine adjustment function, the position of polished rod eye is adjusted with can be convenient in installation or maintenance.

(4) when unloading is hung and taken out, the utility model hangs picking device by unloading and unloads ballast box, avoids traditional crane Unloading manner has saved cost, also helps the power for further decreasing main work drive motor.

(5) by the buffer unit of setting bottom of the frame, be conducive to the percussion for alleviating ballast box, by taking difference Scheme is conducive to the acceleration and deceleration motion of smooth sucker rod widenable to accumulation of energy structure, and saves power consumption.

(6) pass through aforementioned second of plan of establishment of drive system, the utility model can be surveyed in real time during the motion The kinematics indexes speed and acceleration of pumping unit are measured, is prepared to promote the research of control performance；By it is aforementioned the third The plan of establishment can effectively reduce the power of main work drive motor；By the aforementioned 4th kind of plan of establishment, portion of energy can be recycled for weight It is multiple to use.

Detailed description of the invention

Fig. 1 is the overall structure figure left view of the utility model

Fig. 2 is the overall structure front view of the utility model

Fig. 3 is the overall structure top view of the utility model

Fig. 4 is the structural schematic diagram of the drive system of the utility model

Fig. 5 is the structural schematic diagram of the resigning mechanism of the utility model

Fig. 6 is the structural schematic diagram of the balance weight mechanism of the utility model

Fig. 7 is the structural schematic diagram of the transmission system of the utility model

Fig. 8 is the structural schematic diagram of the dynamometry switching device of the utility model

Fig. 9 is the structural schematic diagram of the rear guide wheel group of the utility model

Figure 10 is that the structural schematic diagram of picking device is hung in the unloading of the utility model

Figure 11 is that the structural schematic diagram taken out is hung in the unloading of the utility model

Figure 12 is the right view of the rack of the utility model

Figure 13 is the top view of the rack of the utility model

Figure 14 is the structural schematic diagram of the micro-adjusting mechanism of the utility model

In figure: 1. resigning mechanisms；2. rack；3. transmission system；4. drive system；Guide wheel group after 5.；6. unloading, which is hung, takes out dress It sets；7. balance weight mechanism；1-1. resigning driving motor；1-2., which steps down, drives rope；1-3. suspension；1-4. resigning hanging ring；1-5. first Front jocket wheel；1-6. micro-adjusting mechanism；1-7. clamping frame；1-8. rope guarding plate；The second front jocket wheel of 1-9.；1-10. the first gear frame；1- 11. the second gear frame；1-12. resigning bearing；The first retaining groove of 1-6a.；1-6b. fine adjustment screw；The second retaining groove of 1-6c.；2-1. Total frame；2-2. sensor mounting plate；2-3. position sensor；2-4. buffer unit；3-1. driving rope；3-2. chain；3-3. Counterweight rope；4-1. second bearing seat；4-2 oil bath；4-3. sprocket wheel；4-4. first bearing seat；4-5. yielding coupling；4-6. subtracting Fast device；4-7. threephase asynchronous machine；4-8. transmission shaft；5-1. guide wheel；5-2. guide wheel shaft；5-3. guide wheel bearing；5-4. guide wheel Slot；Wheel frame after 5-5.；6-1. carry truss；6-2. carry ring；6-3. mount hook；6-4. electric hoist；6-5. carry rope；7- 1. the first upright guide rail；7-2. first is vertically directed wheel group；7-3. first is oriented to pinboard；7-4. ballast box；7-5. unloading Ring；7-6. counterweight ring；A. the first dynamometry switching device；B. the second dynamometry switching device；C. polished rod eye；A-1. splicing plate；a-2. Second load cell；A-3. splicing hanging ring；A-4. the first load cell；A-5. chain link plate；A-6. chain link hanging ring.

Specific embodiment

As shown in Fig. 1, Fig. 2 and Fig. 3, a kind of force measurement type Multifunctional tower type pumping unit includes being placed in rack on 2 pedestals It drive system 4 and is placed on 2 roof panel of rack and realizes that Pumping action, well workover resigning, three kinds of functions of sucker rod fine position are in one It the resigning mechanism 1 of body and is placed on 2 roof panel of rack the rear guide wheel group 5 for connecting transmission system 3 and balance weight mechanism 7 and is placed in machine Picking device 6 is hung in the unloading of 2 roof panel of frame.

As shown in figure 5, the resigning mechanism 1 passes through the first front jocket wheel 1-5 and the second front jocket wheel in normal oil pumping operation 1-9 conduction driving rope 3-1 movement, the front jocket wheel is steel wheel or high-intensitive oil-free self lubrication MC nylon wheel, outer round surface It is multiply around rope groove.The first front jocket wheel 1-5 and the second front jocket wheel 1-9 two guide wheels of each freedom form Fig. 3 or two or more Guide wheel composition, is symmetrically distributed on the first gear frame 1-10.Further, the first gear frame 1-10 is equipped with clamping frame 1-7 and consolidates Rope guarding plate 1-8 thereon is connected in prevent wirerope from disengaging guide wheel in the process of running.Further, it is set on the first gear frame 1-10 There is a resigning hanging ring 1-4 to be connected by the driving rope 1-2 that steps down with the resigning driving motor (1-1) being placed at the top of suspension 1-3. First end gear frame 1-10 is equipped with micro-adjusting mechanism 1-6, further, between the first gear frame 1-10 and the second gear frame 1-11 It is connected by revolute pair, passes through resigning bearing 1-12 connection between the second gear frame 1-11 and rack 2.

As shown in figure 14, the micro-adjusting mechanism 1-6 includes the first retaining groove 1-6a of the first end gear frame 1-10, rack 2 On the second retaining groove 1-6c and fine adjustment screw 1-6b.After fine adjustment screw 1-6b is by the threaded hole precession on the second retaining groove 1-6c It is contacted with the first retaining groove 1-6a, fine adjustment screw 1-6b can need to be arranged multiple according to stress.According to above scheme, adjustment fine tuning spiral shell The length of silk 1-6b into the second retaining groove 1-6c can move the first gear frame 1-10, to change the position of polished rod eye c.

Resigning mechanism 1 collapses resigning driving rope 1-2 upwards in workover treatment, by resigning driving motor 1-1, passes through resigning First gear frame 1-10 is up lifted by hanging ring 1-4, the second gear frame 1-11 past rack 2 with the lifting of the first gear frame 1-10 Direction rotation is drawn close, and is formd and is allowed bit space.After workover treatment, resigning driving motor 1-1 release, which is stepped down, drives rope 1- 2, finally the first gear frame 1-10 is placed on micro-adjusting mechanism 1-6, reaches stable state by self gravity and load gravity.

As shown in Figure 12,13, the rack 2 includes total frame 2-1, the sensor installation for being mounted on the side total frame 2-1 The plate 2-2 and buffer unit 2-4 being mounted on the platform of the bottom total frame 2-1.Sensor mounting plate 2-2 is equipped with position biography from top to bottom Sensor 2-3 tetra-, it is followed successively by position limit switch, upper position switch, lower position switch and lower position limit switch, is come with this The reciprocating motion of sucker rod is controlled, stroke can be adjusted in the position for changing sensor.It is led vertically equipped with first total two sides frame 2-1 Rail 7-1 and the second upright guide rail 7-9.There are four the buffer unit 2-4 is distributed in bottom, structure is at least following three kinds One of:

The first is rubber pad；

Second is spring energy storage device；

The third is hydraulic force storage device.

As shown in fig. 7, the transmission system 3 is wirerope and sprocket wheel Composite Transmission, driving rope 3-1 by polished rod eye c with The connection of oil well load, by the first front jocket wheel 1-9 and the second front jocket wheel 1-5, passes through the first dynamometry switching device a and chain 3-2 It is connected, chain 3-2 is moved back and forth by sprocket wheel 4-3 driving.The driving rope end 3-1 connects polished rod eye c.Similar, chain 3-2 It is connected by the second dynamometry switching device b with counterweight rope 3-3, guide wheel group 5 connects ballast box 7-4 after counterweight rope 3-3 is passed through.It is described Driving rope 3-1 on each guide wheel be equipped with two strands or multiply.

As shown in figure 8, the first dynamometry switching device a plays the role of dynamometry and transmission switching, splicing plate a-1 and connect The first load cell a-4 and the second load cell a-2 are symmetrically arranged between carrier bar a-5, the splicing side plate a-1 is equipped with and connects Restrict hanging ring a-3, and the chain link side plate a-5 is equipped with chain link hanging ring a-6.Second dynamometry switching device b and the first dynamometry switching device a Structure is identical.

As shown in figure 4, the drive system 4 by threephase asynchronous machine 4-7 by retarder 4-6 amplify torque after through elasticity Shaft coupling 4-5 and transmission shaft 4-8 is transmitted the motion on three sprocket wheel 4-3, and transmission shaft 4-8 is limited in first bearing seat 4-4 and It makes rotating motion on two bearing bracket 4-1, the sprocket wheel 4-3 is placed in the oil bath 4-2 for providing lubricating oil, transmission shaft end connection Structure is at least one of following four kinds:

The first is without device, i.e., shown in Fig. 4；

Second is one coding disk of band and laser sensor；

The third is one additional motor of band, provides additional power；

4th kind is one power generator of band, is recovered energy.

As shown in figure 9, it is described after guide wheel group 5 by guide wheel 5-1, guide wheel shaft 5-2, guide wheel bearing 5-3, guided wheel slot 5-4 and Wheel frame 5-5 is formed afterwards, and guide wheel 5-1 front and back distribution in guided wheel slot 5-4 is two or more, and guided wheel slot 5-4 is in rear wheel frame 5- It is provided with two or more on 5, is symmetric.

As shown in Figure 10,11, the unloading is hung picking device 6 and is undertaken in unloading with heavy load, and promotes ballast box and make to take out Beam hanger decline as shown in Figure 10,11, is provided with carry ring 6-2, electric hoist 6-4 is logical for manually adjusting between carry truss 6-1 Mount hook 6-3 is crossed to hang on carry ring 6-2, when needing to unload, the carry ring that carry rope 6-5 is connected on ballast box 7-4 On 7-5, electric hoist 6-4 operating pulls ballast box 7-4 to rise.

As shown in fig. 6, the balance weight mechanism 7 provides the effect of balance oil pumping load at work, wherein ballast box 7-4 Wheel group 7-2 and second is vertically directed by first is vertically directed group 7-7 be limited in the first upright guide rail 7- being connected in rack 2 1 and second between upright guide rail 7-9, and ballast box 7-4 and first is vertically directed wheel group 7-2 and second and is vertically directed wheel group 7-7 Between by first guiding pinboard 7-3 and second guiding pinboard 7-8 be connected.Further, unloading is equipped at the top of ballast box 7-4 Ring 7-5 and counterweight ring 7-6, counterweight ring 7-6 set there are four or are greater than four, are connected with transmission system 3.

The protection scope of the utility model includes but is not limited to embodiment of above, and the protection scope of the utility model is to weigh Subject to sharp claim, replacement, deformation, the improvement that those skilled in the art that any pair of this technology is made is readily apparent that are each fallen within The protection scope of the utility model.

Claims (1)

1. a kind of force measurement type Multifunctional tower type pumping unit, it is characterised in that: including the drive system that is placed on rack upper bed-plate and It is placed on rack roof panel and realizes three kinds of Pumping action, well workover resigning, sucker rod fine position functions in the resigning mechanism of one And the unloading for being placed on rack roof panel the rear guide wheel group for connecting transmission system and balance weight mechanism and being placed in rack roof panel is hung Picking device；

The rack is truss structure, and rack is equipped with the upright guide rail for ballast box guiding, is used for installation site sensor Sensor mounting plate, bottom be equipped with buffer unit prevent ballast box from impacting, the position for adjusting sensor can change stroke, because And it is step-less adjustment mode, buffer unit takes rubber pad mode, or takes energy storage equipment such as groups of springs, hydraulic system；

The transmission system is wirerope and sprocket wheel Composite Transmission, and driving rope is connect by polished rod eye with oil well load, by the One front jocket wheel and the second front jocket wheel are connected by the first dynamometry switching device with chain, and chain is back and forth transported by chain wheel drive Dynamic, driving rope end connects polished rod eye, and similar, chain is connected by the second dynamometry switching device with counterweight rope, counterweight rope warp Later guide wheel group connects ballast box, and the driving rope is equipped with two strands or multiply, the first dynamometry switching on each guide wheel Device plays the role of dynamometry and transmission switching, and the first load cell and second is symmetrically arranged between splicing plate and chain link plate and is surveyed Force snesor, splicing plate side are equipped with splicing hanging ring, and chain link plate side is equipped with chain link hanging ring, the second dynamometry switching device and first Dynamometry switching device structure is identical；

It mainly includes carry truss that picking device is hung in the unloading, is provided with carry ring between the carry truss, electric hoist passes through Carry is hooked on carry ring, and when needing to unload, carry rope is connected on the carry ring on ballast box.