CN203769729U - Piston rolling friction oil pumping unit - Google Patents
Piston rolling friction oil pumping unit Download PDFInfo
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- CN203769729U CN203769729U CN201320864377.2U CN201320864377U CN203769729U CN 203769729 U CN203769729 U CN 203769729U CN 201320864377 U CN201320864377 U CN 201320864377U CN 203769729 U CN203769729 U CN 203769729U
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Abstract
The utility model relates to the field of machinery, in particular to a piston rolling friction oil pumping unit. The piston rolling friction oil pumping unit comprises a supporting device, a braking device, a power device, an oil pumping rod and an oil pump, wherein the braking device controls the power device; the power device controls the oil pumping rod to do reciprocating motion; the piston rolling friction oil pumping unit is characterized in that the oil pump comprises a piston, a cylinder body, a rolling body, a traveling valve and fixed valve; the rolling body is arranged on the piston, and part of the rolling body is protruded from the surface of the piston; the piston is arranged in the cylinder body; the rolling body is in contact with the surface of the cylinder body; a piston body is in no contact with the surface of the cylinder body; the oil pumping rod drives the piston to do reciprocating motion; the piston moves upwards to switch on the fixed valve and switch off the traveling valve, so that liquid in a well enters the oil pump through the fixed valve; the piston moves downwards to switch off the fixed valve and switch on the traveling valve, so that the liquid enters the oil pumping rod from the oil pump through the traveling valve. The piston rolling friction oil pumping unit is high in structural strength, high in space utilization efficiency and reliable in performance.
Description
Technical field
The utility model relates to mechanical field, is specifically related to a kind of piston rolling friction oil pumper.
Background technology
Oil pumper is a kind of equipment of recover petroleum, is commonly called as " machine of kowtowing ", makes oil go out well by the way of pressurization.The oil well pump of existing oil pumper mainly comprises sucker rod, pump barrel, piston, travelling valve, standing valve, lining.Sucker rod drives piston to pump in pump barrel, completes the pumping process of pump; Piston moves back and forth and adopts sliding friction guiding in pump barrel, sliding-frictional resistance is large, quick abrasion, application life are short, sliding-frictional resistance between piston and cylinder body has a strong impact on piston movement speed, reduce operating efficiency, increase power consumption, make piston and cylinder body serious wear, reduce equipment performance, increased maintenance.For the force of sliding friction how reducing between piston and cylinder body, conventional way is the machining accuracy by improving cylinder body, piston at present, improve its surface roughness, reduce the sliding-frictional resistance of relative motion, but, fundamentally do not change the reciprocating structure of its sliding friction, therefore DeGrain.
The patent No. is that 200510113105.9 invention has proposed a kind of rolling piston that between piston and cylinder, sliding friction is rolling friction that becomes, this invention is to arrange and be connected and fixed device between piston body and rolling element, be connected and fixed device and comprise upper piston cover and lower piston cover, upper piston cover and lower piston cover fix on piston body, in the groove of roller bearing between upper piston cover and lower piston cover, and outside the opening of part between upper piston cover and lower piston cover.The setting that is connected and fixed device in this patent makes the complex structure of piston, fragile, and the poor manufacture difficulty of manufacturability is large.Because pistons work is in the working environment of a causus chilling frequent variations, the deflection that is connected and fixed device and piston is not etc., loosening after being heated, easily cause upper piston cover and lower piston cover to come off with piston, come off or loosening after upper piston cover and lower piston cover easily make the stuck or inclination of roller bearing, the ability that causes roller bearing to bear support force sharply declines, and even makes roller bearing squeeze and between cylinder body and piston, forms serious accident; Due to the radially installing space that is connected and fixed device and has reduced rolling element being set on piston, cause the small-sized of rolling element, the enabling capabilities of rolling element is reduced greatly.In addition, rolling element is established roller bearing, and roller bearing buried bearing will further reduce size and the holding capacity of rolling element; Due to be connected and fixed device need wide go out rolling element a lot, meanwhile, also will be connected and fixed device one side increase fixture.So, be connected and fixed the axial length that has simultaneously also increased piston that arranges of device, because its rolling element is fixed on piston by upper piston cover lower piston cover, make the rolling element stroke that do not roll on piston, rolling element and piston and upper piston cover lower piston cover produce many places sliding friction, cause running resistance, seriously damage rolling element, piston, upper piston cover, lower piston cover etc., because of its complex structure fragile, life-span is short, fault rate is high, and running resistance is larger, therefore do not apply and promote.
The utility model, in order fundamentally to eliminate the sliding-frictional resistance between rolling element and piston, cylinder body, has carried out thorough reform to the problems referred to above, has proposed a kind of piston rolling friction oil pumper.
Utility model content
The utility model is realized by the following technical solutions:
Described piston rolling friction oil pumper, comprise beam pumping unit or linear oil pump unit etc., beam pumping unit or linear oil pump unit etc. comprise bracing or strutting arrangement, brake gear, power set, sucker rod, oil well pump etc., sucker rod one end is connected with oil well pump, one end is connected with power set, brake gear control power set etc., the reciprocating motion such as power set control sucker rod etc., it is characterized in that: oil well pump comprises piston, cylinder body, rolling element, travelling valve, standing valve etc., rolling element is arranged at piston and a rolling element part protrudes from piston face etc., pistons etc. are arranged in cylinder body, rolling element contacts with cylinder surface etc., piston only does not contact with cylinder surface etc., sucker rod drives the reciprocating motions such as piston, piston stroking upward standing valve is opened etc., travelling valve is closed etc., make liquid enter oil well pump etc. by down-hole through standing valve, descent of piston standing valve is closed etc., and travelling valve is opened etc., makes liquid enter sucker rod etc. by oil well pump through travelling valve.
Described rolling element is arranged at piston and a rolling element part protrudes from piston face etc., pistons etc. are arranged in cylinder body, rolling element contacts with cylinder surface etc., and piston only does not contact with cylinder surface etc., and piston arranges with rolling element split etc. or rolling element is connected with piston etc.
Described piston rolling friction oil pumper, comprise bracing or strutting arrangement, brake gear, power set, sucker rod, oil well pump etc., sucker rod one end is connected with oil well pump etc., one end is connected with power set etc., brake gear control power set etc., power set etc. are controlled sucker rod and are moved back and forth, it is characterized in that: oil well pump comprises cylinder body, piston, rolling element, travelling valve, standing valve etc., circulation raceway etc. is set on cylinder body or piston, circulation raceway is connected with piston or cylinder body split or is integral type etc., pistons etc. are arranged in cylinder body, rolling elements etc. are arranged in circulation raceway, the rolling element that exposes circulation raceway contacts with cylinder surface or with piston face etc., piston only does not contact with cylinder surface etc., sucker rod drives the reciprocating motions such as piston, piston stroking upward standing valve is opened etc., travelling valve is closed etc., make liquid enter oil well pump etc. by down-hole through standing valve, descent of piston standing valve is closed etc., and travelling valve is opened etc., makes liquid enter sucker rod etc. by oil well pump through travelling valve.
Described piston rolling friction oil pumper, is characterized in that: power set comprise crank connecting rod power device or linear electric motors power set or hydraulic power unit or Pneumatic propelling plant etc.
Described piston rolling friction oil pumper, it is characterized in that: described circulation raceway comprises annular circulation raceway etc., annular circulation raceway arranges ringwise or is single layout or is arranged symmetrically etc. along vibration-direction, rolling element in annular circulation raceway with moving back and forth circulating rolling etc.
Described piston rolling friction oil pumper, it is characterized in that: described circulation raceway comprises spirality circulation raceway etc., spirality circulation raceway is arranged on piston or cylinder body is first-class, rolling element in spirality circulation raceway along spiral rolling track circulating rolling etc., the continuous cyclical-transformation in position of pressure etc. between rolling element loading piston and cylinder body, reduces rolling element and in circulation raceway, rolls and be always in piston and cylinder body part and bore the probability etc. of strong pressure and wearing and tearing.
Described piston rolling friction oil pumper, is characterized in that: described rolling element close arrangement etc. in circulation raceway, the length of circulation raceway is suitable for, with rolling element support piston, cylinder body etc., preventing piston and the friction of cylinder body contact slide etc.
Described piston rolling friction oil pumper, is characterized in that: comprise beam pumping unit or linear oil pump unit etc.
Described bracing or strutting arrangement comprises base, support etc.
Described brake gear comprises interior account formula or hem type etc.
Described piston is provided with seal etc., and seal is arranged between piston and cylinder body etc., prevents that liquid or gas from entering opposite side etc. from a side of piston, and rolling element moves back and forth by rolling friction support piston etc. etc.
Described piston is provided with seal etc., seal is arranged between the one or both sides of circulation raceway or front and back circulation raceway etc., seals etc. do not move back and forth etc. on rolling element, prevent that liquid or gas from entering opposite side etc. from a side of piston, rolling element is by reciprocating motions such as rolling friction support piston, reduce the running resistance of piston etc., improve piston movement speed etc., seal is done sealing use etc.
Described seal comprises O shape circle or slip ring or elastic body or back-up ring or support ring or joint ring or star circle or pressure ring or V-arrangement body or U-shaped body or shaped as frame ring or channel or stage clip or opening joint ring etc.
Described piston or cylinder body comprise and prevent rolling element position limiting structure that rolling element comes off etc., and rolling element rolls etc. in rolling element position limiting structure.
Described rolling element position limiting structure comprises raceway or groove or I-shaped or arc or V-arrangement or ellipse or polygon or retainer or limiting plate or stop collar or limiting stand or bulb groove etc., and rolling element position limiting structure is fixedly connected with piston or cylinder body or is integral type etc.
Described piston rolling friction oil pumper, it is characterized in that: the tight fastening of rolling element and cylinder body and/or piston rolling contact surface etc., rolling element and cylinder body and/or piston rolling contact surface are large etc., prevent that rolling element local pressure is excessive etc., reduce rolling element cylinder body and/or piston are concentrated on to local friction etc., the righting amplitudes of increasing to piston etc., closely fasten scroll space and the position etc. of limiting rolling element by the contact surface of piston and/or cylinder body and rolling element.
Described rolling element is arranged on and being equal in weight or substantially equating place of two ends beyond piston superposition section central point, and when the static or motion state of maintenance rolling element support piston, gravity is relatively in a basic balance etc.
Described piston one end arranges anti-tamper structure etc., and anti-tamper structure etc. comprises rotational structure etc., and anti-tamper structure prevents that piston is subject to external impacts damage etc., and protection piston or cylinder body are because damage is impaired etc.
Described anti-tamper structure comprises rotational structure etc.; rotational structure comprises oscillating bearing or steering union joint or rzeppa joint or candan universal joint or bulb buckle-groove type or arc buckle-groove type etc.; move back and forth the reaction damageability producing and impose on rotational structure etc.; the stressed rotation isolation such as rotational structure reaction damageability etc.; anti-tamper structure prevents that piston or cylinder body are subject to external impacts damage etc., and protection piston or cylinder body are because external force is impaired etc.
Described rolling element comprises spherical rolling body or oval rolling element or dumb-bell shape rolling element or cylindrical rolling element or annular rolling element or platform shape post rolling element or platform shape ball rolling element or platform shape drum rolling element or flute profile drum rolling element or channel column rolling element or flute profile ball rolling element or flute profile oval rolling element or rolling element with holes or rolls drum-shaped rolling body or roller rolling element or rollers roll body etc.
Described retainer is arranged in circulation raceway etc., rolling element is arranged in retainer and is arranged in circulation raceway etc., the thickness of retainer is less than the diameter of rolling element etc., two parts that rolling element exceeds retainer are arranged at respectively circulation raceway and piston or cylinder body etc., prevent reverse friction etc. between rolling element and rolling element.
Described cylinder body comprises circular cylinder body or elliptic cylinder body or square cylinder body or trapezoidal cylinder body or special-shaped cylinder body or polygon cylinder body or triangle cylinder body or semicircle cylinder body etc.
Described seal is elastomeric material or polyurethane material or nylon material or plastic material or metal material etc.
Described rolling element is along the setting of piston periphery or be arranged on piston bottom or be arranged on the sidepiece of piston or be arranged on top and the bottom etc. of piston.
Described rolling element adopts High Strength Wear-Resistance Material etc., and High Strength Wear-Resistance Material comprises high-strength alloy material or highstrenghtpiston or high-strength ceramic or high strength steel or high strength self-lubricating material etc.
Described circulation raceway comprises and bears pressures cycle raceway, avoids pressures cycle raceway etc., avoids pressures cycle raceway and cylinder body or piston split and arranges etc., avoids pressures cycle raceway and be detachable etc., conveniently observes, maintenance and change rolling element etc.
Described circulation raceway bears pressure stage high-abrasive material or High Strength Wear-Resistance Material etc. is set, improve the scuff resistance of raceway etc., improve the performance etc. that raceway bears cylinder body and piston and impose on by rolling element the pressure of raceway, reduce piston or a large amount of uses of cylinder body to high-abrasive material and High Strength Wear-Resistance Material etc. etc., the demand of reduction to cylinder body or piston body entirety abrasion resistance and intensity etc.
Described piston rolling friction oil pumper, it is characterized in that: bear rolling element roll extrusion section at cylinder body or piston and high-abrasive material is set or High Strength Wear-Resistance Material etc. is set, reduce cylinder body or a large amount of uses of piston to high-abrasive material and High Strength Wear-Resistance Material etc. etc., the demand of reduction to cylinder body or piston body entirety abrasion resistance and intensity etc.
Described piston rolling friction oil pumper, is characterized in that: described piston or cylinder body are lightweight material etc., and lightweight material comprises aluminium alloys or highstrenghtpiston or pottery or titanium alloy or carbon fiber or lightweight section or composite material etc.
Described circulation raceway comprises and bears pressures cycle raceway, avoids pressures cycle raceway etc., avoid pressures cycle raceway and do not bear pressure between piston and cylinder body etc., bear pressures cycle raceway and bear pressure between piston and cylinder body etc., bear pressures cycle raceway and be provided with wear-resistant coating or be inlaid with High Strength Wear-Resistance Material etc.
Described rolling element comprises roller etc., roller comprises roller shaft etc., roller is arranged between piston and cylinder body etc., roller and roller shaft split or split is connected or for integral type etc., roller laminating cylinder body rolling etc. in the time that roller shaft is fixed on piston, in the time that roller shaft is fixed on cylinder body, roller laminating piston rolls, and prevents piston and cylinder body laminating sliding friction etc.
Described rolling element comprises roller etc., projection, depression, V groove or shaped form etc. are made in the surface of roller, the shape of piston or cylinder body and roller contact face is interlocked etc. with the shape of roller surface, is straight reciprocating motion etc. by the motion of rolling friction control piston.
The beneficial effects of the utility model are:
The utlity model has following advantage:
(1) rolling element is arranged on piston or cylinder body, piston or cylinder body are moved back and forth by rolling friction, greatly reduced by seal and supported reciprocating sliding-frictional resistance.
(2) the utility model not arranging between piston and rolling element is connected and fixed device (upper piston cover, lower piston cover), avoided the setting because being connected and fixed device to make the problems such as piston structure complexity, fragile, manufacturability is poor, manufacture difficulty is large; Avoided complex structure, wearing and tearing are loosening after being heated, and easily cause and are connected and fixed device with piston comes off, come off or loosening after the device that is connected and fixed easily make the stuck or inclination of roller bearing, cause roller bearing to bear the sharply decline problem of enabling capabilities; Avoid making roller bearing to squeeze at cylinder body and piston, be connected and fixed and between device, cause the problems such as major accident; Avoid being connected and fixed device and made rolling element be fixed on piston, made between rolling element and piston without rolling stroke, made rolling element and piston and be connected and fixed device to produce the fault of construction of sliding friction; To be connected and fixed the volume of the shared space of device for increasing piston or rolling element, greatly improved the structural strength of piston and rolling element; Roller bearing and roller bearing buried bearing are set to integral type, simple in structure, have greatly increased intensity and the holding capacity of rolling element; Cancel the axial length that is connected and fixed arranging of device and has reduced piston, greatly increased the compression ratio of oil pocket, the performance of oil pumper is improved greatly.
(3) circulation raceway is set on piston or cylinder body, rolling element is covered with to circulation raceway, improve support degree and the amplitude of rolling element to piston and cylinder body, change and can not be covered with reciprocal raceway because of the rolling element in reciprocal raceway, rolling element can only be worked in a part of region that has rolling element to the rolling support of piston and cylinder body, and back and forth raceway easily makes piston and cylinder body collision friction without the part of rolling element, cause the structure of machine breakdown.Circulation raceway makes between piston, cylinder body and rolling element, at the volley all in rolling friction state, to have reduced the sliding-frictional resistance between piston, cylinder body and rolling element.
(4) under the support of rolling element, piston and cylinder body rolling friction move back and forth, change the structure of sliding friction between original piston and cylinder body, sliding friction is changed into rolling friction, greatly reduce running resistance, improve the reciprocating speed of piston in cylinder body, improved operating efficiency.
(5) piston supports by rolling element, remove the support function of seal from, can make seal only seal and not play a supportive role, reduce the rigidity requirement to seal, can make the high-abrasive material of seal use softer, wear-resistant degree and the sealing life of having improved seal.
(6) piston supports by rolling element, has removed the support function of seal to piston from, can make seal only seal and not play a supportive role, and has reduced the thickness of seal, has reduced friction area and the intensity of seal and cylinder body.
(7) anti-tamper structure is by rotating reciprocating piston or cylinder body guiding, reduce the damage to seal, can make inside and outside seal only seal and not play a supportive role, reduce the rigidity requirement of internal outside seal, can make inside and outside seal use the high-abrasive material of softer, wear-resistant degree and the sealing life of having improved interior outside seal.
(8) anti-tamper structure by rotate righting the direction of motion of piston prevented the damage to piston, Sun Huai not even if crank connecting link is connected with piston also can not cause to turn round to piston.
(9) piston moves back and forth in cylinder body by rolling friction, the support strength of rolling element is greater than the support strength of seal and has reduced frictional resistance, when piston volume weight large, cylinder body cavity is large, piston uses rolling element support piston when cavity is had to larger frictional force, move in cylinder body by rolling friction, not only can capable of reducing friction resistance but also can improve the reciprocating speed of piston, make this oil pumper be more suitable for multiple dynamic strength large, turn round the scene that other power is large, driving frequency is high.
(10) rolling element uses High Strength Wear-Resistance Material support piston or cylinder body rolling friction to move back and forth, more original piston and cylinder body sliding friction, and frictional resistance reduces greatly, long service life, maintenance capacity is few, and operating efficiency is high.
(11) because making the rolling friction under the support of rolling element of piston and cylinder body, circulation raceway moves back and forth, greatly reduce power consumption, reduced the power load of other supporting auxiliary tools, the life-span of having improved other auxiliary tools, reduce the related investment number of integral device, energy-efficient.
(12) circulation raceway and piston or cylinder body are integral type, reduce and manufactured also operation and the spillage of material of stringing bearing, reduce the shared space of mosaic component, circulation raceway and piston or cylinder body are integral type, structural strength is large, space availability ratio is high, limited space is used for increasing to the volume of rolling element, improve the supporting capacity of rolling element, strengthened the contact area of rolling element and piston or cylinder body, reduced because of rolling element too small to piston or the problem such as cylinder body local pressure is excessive and abrasive forces is excessive.
(13) bear pressures cycle raceway or avoid pressures cycle raceway split setting, avoiding pressures cycle raceway and be set to detachablely, the convenient installation, maintenance to circulation raceway, is convenient for changing rolling element.
(14) bearing pressure stage at circulation raceway arranges high-abrasive material or High Strength Wear-Resistance Material is set, improve the scuff resistance of raceway, improve the ability that raceway bears piston or cylinder pressure, high-abrasive material is set in part or High Strength Wear-Resistance Material is set, save a large amount of uses to high-abrasive material and high-strength material of piston and cylinder body, reduced the requirement to piston or cylinder body entirety abrasion resistance and intensity.
(15) bearing pressures cycle raceway is provided with wear-resistant coating or is inlaid with High Strength Wear-Resistance Material, scuff resistance and the bearing capacity of circulation raceway are improved, rolling element close arrangement has uniform extruding force to High Strength Wear-Resistance Material on High Strength Wear-Resistance Material, and therefore High Strength Wear-Resistance Material can local shedding or distortion.
(16) bear larger pressure friction area at piston or cylinder body circulation raceway is set, make rolling element in circulation raceway, roll and bear extruding force, frictional force and pressure are applied on rolling element, can reduce scuff resistance and the bearing strength of piston or cylinder body entirety, make piston or cylinder body use lightweight material, reduce the weight of reciprocating piston and cylinder body, thereby reduce the consumption to energy of reciprocating piston or cylinder body, make piston rolling element efficient circulation rolling engine structure simple, structural strength is large, space utilization efficiency is high, dependable performance, manufacturability is strong, processing and fabricating is simple and easy, operational efficiency is high, energy-saving and cost-reducing, maintenance capacity is few, long service life.
Brief description of the drawings
Fig. 1 is the structural representation of a kind of piston rolling friction oil pumper in embodiment 1;
Fig. 2 is a kind of piston rolling friction oil pumping machine oil pumping pump structure schematic diagram in embodiment 2;
Fig. 3 is the structural representation of a kind of piston rolling friction oil pumper in embodiment 3;
Fig. 4 is the structural representation of a kind of piston rolling friction oil pumper in embodiment 4;
Fig. 5 is the front view of a kind of piston rolling friction oil pumping machine oil pumping pump in embodiment 5;
Fig. 6 is the sectional view of a kind of piston rolling friction oil pumping machine oil pumping pump A-A direction in embodiment 5;
Fig. 7 is the front view of a kind of piston rolling friction oil pumping machine oil pumping pump in embodiment 6;
Fig. 8 is the sectional view of a kind of piston rolling friction oil pumping machine oil pumping pump A-A direction in embodiment 6;
Fig. 9 is the front view of a kind of piston rolling friction oil pumping machine oil pumping pump in embodiment 7;
Figure 10 is the sectional view of a kind of piston rolling friction oil pumping machine oil pumping pump A-A direction in embodiment 7;
Figure 11 is the front view of a kind of piston rolling friction oil pumping machine oil pumping pump in embodiment 8;
Figure 12 is the front view of a kind of piston rolling friction oil pumping machine oil pumping pump in embodiment 9;
Figure 13 is the top view of a kind of piston rolling friction oil pumping machine oil pumping pump in embodiment 10;
Figure 14 is the front view of a kind of piston rolling friction oil pumping machine oil pumping pump in embodiment 11.
In figure: 1, bracing or strutting arrangement; 2, brake gear; 3, power set; 4, sucker rod; 5, oil well pump; 6, cylinder body; 7, piston; 8, rolling element; 9, travelling valve; 10, standing valve; 11, circulation raceway; 12, seal; 13, rolling element position limiting structure; 14, retainer; 15, bear pressures cycle raceway; 16, avoid pressures cycle raceway; 17, high-abrasive material or High Strength Wear-Resistance Material; 18, anti-tamper structure.
Detailed description of the invention
Embodiment 1
Fig. 1 is the piston rolling friction oil pumper described in embodiment 1, this piston rolling friction oil pumper is beam pumping unit, comprise bracing or strutting arrangement 1, brake gear 2, power set 3, sucker rod 4, oil well pump 5, sucker rod 4 one end are connected with oil well pump 5, one end is connected with power set 3, brake gear 2 is controlled power set 3, power set 3 are controlled sucker rod 4 and are moved back and forth, it is characterized in that: oil well pump 5 comprises piston 7, cylinder body 6, rolling element 8, travelling valve 9, standing valve 10, rolling element 8 is arranged at piston 7 and rolling element 8 parts protrude from piston 7 surfaces, piston 7 is arranged in cylinder body 6, rolling element 8 and cylinder body 6 Surface Contacts, piston 7 bodies not with cylinder body 6 Surface Contacts, sucker rod 4 drives piston 7 to move back and forth, the up standing valve 10 of piston 7 is opened, travelling valve 9 is closed, make liquid enter oil well pump 5 by down-hole through standing valve 10, the descending standing valve 10 of piston 7 is closed, and travelling valve 9 is opened, and makes liquid enter sucker rod 4 by oil well pump 5 through travelling valve 9.
Embodiment 2
Fig. 2 is the oil well pump of the piston rolling friction oil pumper described in embodiment 2, oil well pump 5 comprises piston 7, cylinder body 6, rolling element 8, travelling valve 9, standing valve 10, rolling element 8 is arranged at piston 7 and rolling element 8 parts protrude from piston 7 surfaces, piston 7 is arranged in cylinder body 6, rolling element 8 and cylinder body 6 Surface Contacts, piston 7 bodies not with cylinder body 6 Surface Contacts, piston 7 is provided with seal 12, seal 12 is arranged between piston 7 and cylinder body 6, prevent that liquid or gas from entering opposite side from a side of piston 7, rolling element 8 moves back and forth by rolling friction support piston 7.
Other are with embodiment 1.
Embodiment 3
Fig. 3 is the piston rolling friction oil pumper described in embodiment 3, this piston rolling friction oil pumper is linear oil pump unit, comprise bracing or strutting arrangement 1, brake gear 2, power set 3, sucker rod 4, oil well pump 5, sucker rod 4 one end are connected with oil well pump 5, one end is connected with power set 3, brake gear 2 is controlled power set 3, power set 3 are controlled sucker rod 4 and are moved back and forth, it is characterized in that: oil well pump 5 comprises piston 7, cylinder body 6, rolling element 8, travelling valve 9, standing valve 10, rolling element 8 is arranged at piston 7 and rolling element 8 parts protrude from piston 7 surfaces, rolling element 8 is connected with piston 7, piston 7 is arranged in cylinder body 6, rolling element 8 and cylinder body 6 Surface Contacts, piston 7 bodies not with cylinder body 6 Surface Contacts, sucker rod 4 drives piston 7 to move back and forth, the up standing valve 10 of piston 7 is opened, travelling valve 9 is closed, make liquid enter oil well pump 5 by down-hole through standing valve 10, the descending standing valve 10 of piston 7 is closed, and travelling valve 9 is opened, and makes liquid enter sucker rod 4 by oil well pump 5 through travelling valve 9.
Described rolling element 8 can also with piston 7 split settings.
Other are with embodiment 1.
Embodiment 4
Fig. 4 is the piston rolling friction oil pumper described in embodiment 4, comprise bracing or strutting arrangement 1, brake gear 2, power set 3, sucker rod 4, oil well pump 5, sucker rod 4 one end are connected with oil well pump 5, one end is connected with power set 3, brake gear 2 is controlled power set 3, power set 3 are controlled sucker rod 4 and are moved back and forth, it is characterized in that: oil well pump 5 comprises cylinder body 6, piston 7, rolling element 8, travelling valve 9, standing valve 10, circulation raceway 11 is set on piston 7, circulation raceway 11 is integral type with piston 7, piston 7 is arranged in cylinder body 6, rolling element 8 is arranged in circulation raceway 11, the rolling element 8 that exposes circulation raceway 11 and cylinder body 6 surfaces or with piston 7 Surface Contacts, piston 7 bodies not with cylinder body 6 Surface Contacts, sucker rod 4 drives piston 7 to move back and forth, the up standing valve 10 of piston 7 is opened, travelling valve 9 is closed, make liquid enter oil well pump 5 by down-hole through standing valve 10, the descending standing valve 10 of piston 7 is closed, and travelling valve 9 is opened, and makes liquid enter sucker rod 4 by oil well pump 5 through travelling valve 9.
Other are with embodiment 1.
Embodiment 5
Fig. 5, Fig. 6 are the oil well pumps of the piston rolling friction oil pumper described in embodiment 5, circulation raceway 11 is annular circulation raceway, annular circulation raceway is arranged symmetrically along vibration-direction, rolling element 8 in annular circulation raceway with move back and forth circulating rolling, piston 7 is provided with seal 12, seal 12 is arranged on the both sides of circulation raceway 11, prevents that liquid or gas from entering opposite side from a side of piston 7, and rolling element 8 moves back and forth by rolling friction support piston 7.
Described seal 12 can be O shape circle or slip ring or elastic body or back-up ring or support ring or joint ring or star circle or pressure ring or V-arrangement body or U-shaped body or shaped as frame ring or channel or stage clip or opening joint ring.
Other are with embodiment 1.
Embodiment 6
Fig. 7, Fig. 8 are the oil well pumps of the piston rolling friction oil pumper described in embodiment 6, circulation raceway 11 is spirality circulation raceway, spirality circulation raceway is arranged on piston, rolling element 8 in spirality circulation raceway along spiral rolling track circulating rolling, the continuous cyclical-transformation in position of pressure between rolling element 8 loading pistons 7 and cylinder body 6, reduces rolling element 8 and in circulation raceway 11, rolls and be always in piston 7 and the probability of strong pressure and wearing and tearing was born in cylinder body 6 parts.
Other are with embodiment 1.
Embodiment 7
Fig. 9, Figure 10 are the oil well pumps of the piston rolling friction oil pumper described in embodiment 7, rolling element 8 is roller, roller comprises roller shaft, and roller is arranged between piston 7 and cylinder body 6, and roller is connected with roller shaft split, roller shaft is fixed on piston 7, roller laminating cylinder body 6 rolls, and prevents the sliding friction of fitting of piston 7 and cylinder body 6, and piston 7 is provided with the rolling element position limiting structure 13 that prevents that rolling element 8 from coming off, rolling element position limiting structure 13 is limiting plate, and rolling element 8 rolls in rolling element position limiting structure.
Described rolling element position limiting structure can also be raceway or groove or I-shaped or arc or V-arrangement or ellipse or polygon or retainer or stop collar or limiting stand or bulb groove.
Other are with embodiment 1.
Embodiment 8
Figure 11 is the oil well pump of the piston rolling friction oil pumper described in embodiment 8, rolling element position limiting structure is retainer 14, retainer 14 is arranged in circulation raceway 11, rolling element 8 is arranged in retainer 14 and is arranged in circulation raceway 11, the thickness of retainer 14 is less than the diameter of rolling element 8, two parts that rolling element 8 exceeds retainer 14 are arranged at respectively circulation raceway 11 and cylinder body 6, prevent reverse friction between rolling element 8 and rolling element 8.
Other are with embodiment 1.
Embodiment 9
Figure 12 is the oil well pump of the piston rolling friction oil pumper described in embodiment 9, circulation raceway comprises and bears pressures cycle raceway 15, avoids pressures cycle raceway 16, avoid pressures cycle raceway 16 and piston 7 split settings, avoid pressures cycle raceway 16 for detachable, convenient observation, maintenance and replacing rolling element 8, avoid pressures cycle raceway 16 and do not bear the pressure between piston 7 and cylinder body 6, bear pressures cycle raceway 15 and bear the pressure between piston 7 and cylinder body 6, bear pressures cycle raceway 15 and be provided with wear-resistant coating or High Strength Wear-Resistance Material 17.
Other are with embodiment 1.
Embodiment 10
Figure 13 is the oil well pump of the piston rolling friction oil pumper described in embodiment 10, rolling element 8 comprises roller, roller comprises roller shaft, roller is arranged between piston 7 and cylinder body 6, cylinder body 6 is square cylinder body, piston 7 is square piston, roller is connected with roller shaft split, roller shaft is fixed on piston 7, roller laminating cylinder body 6 rolls, shaped form is made on the surface of roller, and cylinder body 6 is interlocked with the shape of roller surface with the shape of roller contact face, is straight reciprocating motion by the motion of rolling friction control piston 7.
Described cylinder body 6 can also be circular cylinder body or elliptic cylinder body or trapezoidal cylinder body or special-shaped cylinder body or polygon cylinder body or triangle cylinder body or semicircle cylinder body.
Projection, depression, V flute profile can also be made in the surface of described roller.
Other are with embodiment 1.
Embodiment 11
Figure 14 is the oil well pump of the piston rolling friction oil pumper described in embodiment 11; one end of piston 7 arranges anti-tamper structure 18; anti-tamper structure 18 comprises rotational structure; rotational structure is candan universal joint; move back and forth the reaction damageability producing and impose on rotational structure; the stressed rotation isolation of rotational structure reaction damageability, anti-tamper structure 18 prevents that piston 7 is damaged by external impacts, protection piston 7 is because external force is not impaired.
Described anti-tamper structure 18 can also be oscillating bearing or steering union joint or rzeppa joint or bulb buckle-groove type or arc buckle-groove type.
Other are with embodiment 1.
Claims (21)
1. a piston rolling friction oil pumper, comprise beam pumping unit or linear oil pump unit, beam pumping unit or linear oil pump unit comprise bracing or strutting arrangement, brake gear, power set, sucker rod, oil well pump, sucker rod one end is connected with oil well pump, one end is connected with power set, brake gear control power set, power set control sucker rod moves back and forth, it is characterized in that: oil well pump comprises piston, cylinder body, rolling element, travelling valve, standing valve, rolling element is arranged at piston and a rolling element part protrudes from piston face, piston is arranged in cylinder body, rolling element contacts with cylinder surface, piston only does not contact with cylinder surface, sucker rod drives reciprocating motion of the pistons, piston stroking upward standing valve is opened, travelling valve is closed, make liquid enter oil well pump by down-hole through standing valve, descent of piston standing valve is closed, and travelling valve is opened, and makes liquid enter sucker rod by oil well pump through travelling valve.
2. piston rolling friction oil pumper according to claim 1, is characterized in that: described piston is connected with piston with rolling element split setting or rolling element.
3. piston rolling friction oil pumper according to claim 1, comprise bracing or strutting arrangement, brake gear, power set, sucker rod, oil well pump, sucker rod one end is connected with oil well pump, one end is connected with power set, brake gear control power set, power set control sucker rod moves back and forth, it is characterized in that: oil well pump comprises cylinder body, piston, rolling element, travelling valve, standing valve, circulation raceway is set on cylinder body or piston, circulation raceway is connected with piston or cylinder body split or is integral type, piston is arranged in cylinder body, rolling element is arranged in circulation raceway, the rolling element that exposes circulation raceway contacts with cylinder surface or with piston face, piston only does not contact with cylinder surface, sucker rod drives reciprocating motion of the pistons, piston stroking upward standing valve is opened, travelling valve is closed, make liquid enter oil well pump by down-hole through standing valve, descent of piston standing valve is closed, and travelling valve is opened, and makes liquid enter sucker rod by oil well pump through travelling valve.
4. piston rolling friction oil pumper according to claim 3, it is characterized in that: described circulation raceway comprises annular circulation raceway, annular circulation raceway arranges ringwise or is single layout or is arranged symmetrically along vibration-direction, rolling element in annular circulation raceway with moving back and forth circulating rolling.
5. piston rolling friction oil pumper according to claim 3, it is characterized in that: described circulation raceway comprises spirality circulation raceway, spirality circulation raceway is arranged on piston or cylinder body, rolling element in spirality circulation raceway along spiral rolling track circulating rolling, the continuous cyclical-transformation in the position of pressure between rolling element loading piston and cylinder body, reduces rolling element and in circulation raceway, rolls and be always in piston and the probability of strong pressure and wearing and tearing was born in cylinder body part.
6. piston rolling friction oil pumper according to claim 1, it is characterized in that: described piston is provided with seal, seal is arranged between piston and cylinder body, prevents that liquid or gas from entering opposite side from a side of piston, and rolling element moves back and forth by rolling friction support piston.
7. piston rolling friction oil pumper according to claim 3, it is characterized in that: described piston is provided with seal, seal is arranged between the one or both sides or front and back circulation raceway of circulation raceway, prevent that liquid or gas from entering opposite side from a side of piston, rolling element moves back and forth by rolling friction support piston.
8. according to the piston rolling friction oil pumper described in claim 6 or 7, it is characterized in that: described seal comprises O shape circle or slip ring or elastic body or back-up ring or support ring or joint ring or star circle or pressure ring or V-arrangement body or U-shaped body or shaped as frame ring or channel or stage clip or opening joint ring.
9. piston rolling friction oil pumper according to claim 1, is characterized in that: described piston or cylinder body comprise the rolling element position limiting structure that prevents that rolling element from coming off, and rolling element rolls in rolling element position limiting structure.
10. piston rolling friction oil pumper according to claim 9, it is characterized in that: described rolling element position limiting structure comprises raceway or groove or I-shaped or arc or V-arrangement or ellipse or polygon or retainer or limiting plate or stop collar or limiting stand or bulb groove, rolling element position limiting structure is fixedly connected with piston or cylinder body or is integral type.
11. piston rolling friction oil pumpers according to claim 1, it is characterized in that: described rolling element is arranged on and being equal in weight or substantially equating place of two ends beyond piston superposition section central point, when the static or motion state of maintenance rolling element support piston, gravity is relatively in a basic balance.
12. piston rolling friction oil pumpers according to claim 1; it is characterized in that: described piston one end arranges anti-tamper structure; anti-tamper structure comprises rotational structure, and anti-tamper structure prevents that piston is damaged by external impacts, and protection piston or cylinder body are because damage is not impaired.
13. piston rolling friction oil pumpers according to claim 12; it is characterized in that: described anti-tamper structure comprises rotational structure; rotational structure comprises oscillating bearing or steering union joint or rzeppa joint or candan universal joint or bulb buckle-groove type or arc buckle-groove type; move back and forth the reaction damageability producing and impose on rotational structure; the stressed rotation isolation of rotational structure reaction damageability; anti-tamper structure prevents that piston or cylinder body are damaged by external impacts, and protection piston or cylinder body are because external force is not impaired.
14. piston rolling friction oil pumpers according to claim 1, is characterized in that: described rolling element comprises spherical rolling body or oval rolling element or dumb-bell shape rolling element or cylindrical rolling element or annular rolling element or platform shape post rolling element or platform shape ball rolling element or platform shape drum rolling element or flute profile drum rolling element or channel column rolling element or flute profile ball rolling element or flute profile oval rolling element or rolling element with holes or rolls drum-shaped rolling body or roller rolling element or rollers roll body.
15. piston rolling friction oil pumpers according to claim 10, it is characterized in that: described retainer is arranged in circulation raceway, rolling element is arranged in retainer and is arranged in circulation raceway, the thickness of retainer is less than the diameter of rolling element, two parts that rolling element exceeds retainer are arranged at respectively circulation raceway and piston or cylinder body, prevent reverse friction between rolling element and rolling element.
16. piston rolling friction oil pumpers according to claim 1, is characterized in that: described cylinder body comprises circular cylinder body or elliptic cylinder body or square cylinder body or trapezoidal cylinder body or special-shaped cylinder body or polygon cylinder body or triangle cylinder body or semicircle cylinder body.
17. piston rolling friction oil pumpers according to claim 1, is characterized in that: described rolling element is along the setting of piston periphery or be arranged on piston bottom or be arranged on the sidepiece of piston or be arranged on top and the bottom of piston.
18. piston rolling friction oil pumpers according to claim 3, it is characterized in that: described circulation raceway comprises and bears pressures cycle raceway, avoids pressures cycle raceway, avoid pressures cycle raceway and cylinder body or piston split setting, it is detachable avoiding pressures cycle raceway, convenient observation, maintenance and replacing rolling element.
19. piston rolling friction oil pumpers according to claim 3, it is characterized in that: described circulation raceway comprises and bears pressures cycle raceway, avoids pressures cycle raceway, avoid pressures cycle raceway and do not bear the pressure between piston and cylinder body, bear pressures cycle raceway and bear the pressure between piston and cylinder body, bear pressures cycle raceway and be provided with wear-resistant coating or be inlaid with High Strength Wear-Resistance Material.
20. piston rolling friction oil pumpers according to claim 1, it is characterized in that: described rolling element comprises roller, roller comprises roller shaft, roller is arranged between piston and cylinder body, roller and roller shaft split or split is connected or be integral type, in the time that roller shaft is fixed on piston, roller laminating cylinder body rolls, and in the time that roller shaft is fixed on cylinder body, roller laminating piston rolls, and prevents piston and cylinder body laminating sliding friction.
21. piston rolling friction oil pumpers according to claim 1, it is characterized in that: described rolling element comprises roller, projection, depression, V groove or shaped form are made in the surface of roller, the shape of piston or cylinder body and roller contact face is interlocked with the shape of roller surface, is straight reciprocating motion by the motion of rolling friction control piston.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320864377.2U CN203769729U (en) | 2012-12-26 | 2013-12-24 | Piston rolling friction oil pumping unit |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210597966 | 2012-12-26 | ||
| CN201210597966.9 | 2012-12-26 | ||
| CN201320864377.2U CN203769729U (en) | 2012-12-26 | 2013-12-24 | Piston rolling friction oil pumping unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203769729U true CN203769729U (en) | 2014-08-13 |
Family
ID=51038415
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320864377.2U Expired - Fee Related CN203769729U (en) | 2012-12-26 | 2013-12-24 | Piston rolling friction oil pumping unit |
| CN201310736776.5A Pending CN103912483A (en) | 2012-12-26 | 2013-12-24 | Pumping unit piston rolling friction method and piston rolling friction pumping unit with same |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310736776.5A Pending CN103912483A (en) | 2012-12-26 | 2013-12-24 | Pumping unit piston rolling friction method and piston rolling friction pumping unit with same |
Country Status (1)
| Country | Link |
|---|---|
| CN (2) | CN203769729U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113757076A (en) * | 2021-11-09 | 2021-12-07 | 杭州赛奇机械股份有限公司 | Wear-resisting air compressor piston that new energy automobile used |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108533229A (en) * | 2018-07-07 | 2018-09-14 | 江苏明宇石油机械有限公司 | A kind of oil pumping stable well recovery machine |
| CN113404685A (en) * | 2021-07-19 | 2021-09-17 | 吕远 | Wear-resisting efficient short plunger rod pump |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4049365A (en) * | 1974-09-13 | 1977-09-20 | Sparks Sr Virgil H | Oil well pump with plunger pull down and desanding assembly |
| RU2011009C1 (en) * | 1990-04-23 | 1994-04-15 | Башкирский государственный научно-исследовательский и проектный институт нефтяной промышленности | Rod pump plant |
| FR2663994B1 (en) * | 1990-06-29 | 1994-06-10 | Ratier Figeac Soc | ROTARY BALL CYLINDER. |
| JP2001295809A (en) * | 2000-04-11 | 2001-10-26 | Smc Corp | Cylinder with guide |
| JP2003314504A (en) * | 2002-04-24 | 2003-11-06 | Koyo Seiko Co Ltd | Fluid pressure cylinder |
| DE102004032411B4 (en) * | 2004-07-02 | 2006-08-31 | Zf Friedrichshafen Ag | Air spring vibration damper |
| CN101050764A (en) * | 2007-05-14 | 2007-10-10 | 许川文 | Balance type two-way deep well oil pumping |
| JP4938631B2 (en) * | 2007-11-30 | 2012-05-23 | シーケーディ株式会社 | Actuator with rod |
| KR20100081042A (en) * | 2009-01-05 | 2010-07-14 | 장경태 | Roller guided piston for oil well pump |
-
2013
- 2013-12-24 CN CN201320864377.2U patent/CN203769729U/en not_active Expired - Fee Related
- 2013-12-24 CN CN201310736776.5A patent/CN103912483A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113757076A (en) * | 2021-11-09 | 2021-12-07 | 杭州赛奇机械股份有限公司 | Wear-resisting air compressor piston that new energy automobile used |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103912483A (en) | 2014-07-09 |
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Granted publication date: 20140813 Termination date: 20191224 |
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