CN105736363A - Positive displacement pump of eccentric wheel structure - Google Patents
Positive displacement pump of eccentric wheel structure Download PDFInfo
- Publication number
- CN105736363A CN105736363A CN201610212403.1A CN201610212403A CN105736363A CN 105736363 A CN105736363 A CN 105736363A CN 201610212403 A CN201610212403 A CN 201610212403A CN 105736363 A CN105736363 A CN 105736363A
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- China
- Prior art keywords
- eccentric
- displacement pump
- eccentric wheel
- wheel structure
- pump
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C2/00—Rotary-piston machines or pumps
- F04C2/30—Rotary-piston machines or pumps having the characteristics covered by two or more groups F04C2/02, F04C2/08, F04C2/22, F04C2/24 or having the characteristics covered by one of these groups together with some other type of movement between co-operating members
- F04C2/34—Rotary-piston machines or pumps having the characteristics covered by two or more groups F04C2/02, F04C2/08, F04C2/22, F04C2/24 or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in groups F04C2/08 or F04C2/22 and relative reciprocation between the co-operating members
- F04C2/356—Rotary-piston machines or pumps having the characteristics covered by two or more groups F04C2/02, F04C2/08, F04C2/22, F04C2/24 or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in groups F04C2/08 or F04C2/22 and relative reciprocation between the co-operating members with vanes reciprocating with respect to the outer member
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C15/00—Component parts, details or accessories of machines, pumps or pumping installations, not provided for in groups F04C2/00 - F04C14/00
- F04C15/0003—Sealing arrangements in rotary-piston machines or pumps
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C15/00—Component parts, details or accessories of machines, pumps or pumping installations, not provided for in groups F04C2/00 - F04C14/00
- F04C15/0042—Systems for the equilibration of forces acting on the machines or pump
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C15/00—Component parts, details or accessories of machines, pumps or pumping installations, not provided for in groups F04C2/00 - F04C14/00
- F04C15/06—Arrangements for admission or discharge of the working fluid, e.g. constructional features of the inlet or outlet
- F04C15/064—Arrangements for admission or discharge of the working fluid, e.g. constructional features of the inlet or outlet with inlet and outlet valves specially adapted for rotary or oscillating piston machines or pumps
Abstract
The invention discloses a positive displacement pump of an eccentric wheel structure. The positive displacement pump comprises a pump body which is internally provided with a power end assembly and a hydraulic end assembly. The power end assembly comprises a driving shaft which can rotate under the action of an external power mechanism and penetrate through the pump body. The hydraulic end assembly comprises an eccentric wheel, a hydraulic cylinder and a plurality of segmentation slices. The eccentric wheel and the segmentation slices are arranged in the hydraulic cylinder. A space defined by connecting the hydraulic cylinder, the driving shaft with the eccentric wheel is a positive displacement cavity of the positive displacement pump. One end of each segmentation slice is connected with the hydraulic cylinder, and the other end of each segmentation slice is tightly attached to the eccentric wheel. The positive displacement cavity is divided into a plurality of independent sealed spaces through the multiple segmentation slices. According to the positive displacement pump of the eccentric wheel structure, the eccentric wheel is driven to rotate through rotating of the driving shaft, the eccentric wheel directly changes the volume of all the independent sealed spaces in the positive displacement cavity when rotating, and a power motion curve conversion device of a traditional positive displacement pump such as a reciprocating pump does not need to be additionally arranged; and the positive displacement pump of the eccentric wheel structure has the characteristics of being simple in structure and low in manufacturing cost.
Description
Technical field
The present invention relates to pump field, particularly relate to the displacement pump of a kind of eccentric wheel structure.
Background technology
Traditional displacement pump such as reciprocating pump, is changed fluid cylinder volume size by plunger or piston by moving back and forth, and coordinates liquid feed valve and tapping valve to realize pumping liquid.Owing to power source moving curve is become rectilinear motion from circular motion, it is necessary to baroque power end is changed, it is generally adopted bent axle, crosshead and intermediate bar connection fluid end in power end part and makes plunger reciprocating.Owing to these mechanical mechanism moving components of needs are more, it is all again face contact and sliding friction, causes the many restrictions of running speed, produce substantial amounts of heat at work, therefore there is the shortcomings such as the life-span is short, and efficiency is low, bulky.In order to ensure power end normal operation, it is necessary to use substantial amounts of oil lubrication and cool down each face transmission width, these lubricating oil are to need regular replacing and interpolation, thus also result in running and cause the problems such as environmental pollution with maintenance cost and power oil seepage.
Summary of the invention
The technical problem that present invention mainly solves is to provide the displacement pump of a kind of eccentric wheel structure, by drive axle rotarily drive eccentric rotation, eccentric is when rotating, directly change the volume size in each autonomous closure space in cavity volume, it is not necessary to be further added by the dynamic movement Curve transform device of tradition displacement pump such as reciprocating pump.Owing to eccentric is arranged in cylinder, directly contact with the liquid in fluid cylinder during eccentric work, it is not necessary to lubrication and cooling system.
For solving above-mentioned technical problem, the technical scheme that the present invention adopts is: provide the displacement pump of a kind of eccentric wheel structure, including: the pump housing, power end component and fluid end assembly it is provided with in the described pump housing, described power end component includes: the driving axle that can rotate under external actuating unit effect, described driving axle runs through the described pump housing；Described fluid end assembly includes: eccentric, fluid cylinder and multiple cutting plate, described eccentric and cutting plate are placed in described fluid cylinder, described fluid cylinder, axle and eccentric is driven to connect the cavity volume that space is described displacement pump surrounded, described cutting plate one end is connected with described fluid cylinder, the other end of described cutting plate is close to described eccentric, the plurality of cutting plate can along its length on move reciprocatingly, described cavity volume is divided into multiple autonomous closure space by the plurality of cutting plate, described eccentric rotation is rotarily driven by described driving axle, thus changing the volume size in described closing space.
Preferably, described fluid end assembly also includes pressure mechanism, and described pressure mechanism connects described cutting plate and described fluid cylinder, when eccentric rotates, compresses cutting plate by pressure mechanism, and cutting plate is close to eccentric, it is ensured that described closing space sealing is good.
Preferably, described fluid end assembly also includes liquid feed valve and tapping valve, and described liquid feed valve and tapping valve are arranged in described closing space.
Preferably, described fluid end assembly also includes feed tube and discharging tube, and described feed tube is connected with described liquid feed valve, and described discharging tube is connected with described tapping valve.
Preferably, described fluid end assembly is provided with multiple, and described fluid end components distribution is with described driving axle for the circumference in the center of circle.
Preferably, the described pump housing also includes inlet and leakage fluid dram, and described inlet is connected with described feed tube, and described leakage fluid dram is connected with described discharging tube.
Preferably, the described pump housing also includes diverter, intercommunication between described diverter, feed tube and liquid feed valve, and described diverter is installed on described driving axle.
Preferably, the described pump housing also includes the first sealing ring, the second sealing ring and the 3rd sealing ring, and the junction of described eccentric and fluid cylinder is located at by described first sealing ring；Described second sealing ring is located at described pump housing inwall and drives the junction of axle；The junction of described fluid cylinder and the pump housing is located at by described 3rd sealing ring.
Preferably, the described pump housing also includes bearing, and described bearing is located at described pump housing outer wall and described driving shaft connection place.
Preferably, there is dynamic balancing between the plurality of eccentric.
In technical solution of the present invention, by drive axle rotarily drive eccentric rotation, eccentric rotate time, directly change the volume size in each autonomous closure space in cavity volume, it is not necessary to be further added by tradition displacement pump such as reciprocating pump dynamic movement Curve transform device；Owing to eccentric is arranged and in fluid cylinder, directly contact with the liquid in fluid cylinder during eccentric work, without lubrication and cooling system, make the simple in construction of displacement pump, low cost of manufacture, floor space is little, drastically reduce the area because conventional motion curve is in the produced energy loss of conversion, further reduce the working strength driving axle, improve the service life driving axle.By arranging multiple fluid end assembly, increase discharge capacity, be present in dynamic balancing between also making eccentric adjacent simultaneously, balance extra eccentric eccentric force so that displacement pump runs more stable；Fluid end components distribution is to drive axle on the circumference in the center of circle, when displacement pump right angle setting uses, being greatly saved the floor space of displacement pump；First sealing ring, the second sealing ring and the 3rd sealing ring are set, the junction of fluid end, the pump housing and driving axle are sealed so that liquid will not seepage outside the pump housing, also ensure that sealing effectiveness.
Accompanying drawing explanation
In order to be illustrated more clearly that the embodiment of the present invention or technical scheme of the prior art, the accompanying drawing used required in embodiment or description of the prior art will be briefly described below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the premise not paying creative work, it is also possible to the structure according to these accompanying drawings obtains other accompanying drawing.
Fig. 1 is the displacement pump plan structure schematic diagram of a kind of eccentric wheel structure of the present invention；
Fig. 2 is the sectional structure schematic diagram of transversely centrage in Fig. 1.
Drawing reference numeral illustrates: 10, the pump housing；11, power end component；111, axle is driven；12, fluid end assembly；121, eccentric；122, cutting plate；123, fluid cylinder；124, pressure mechanism；125, liquid feed valve；126, tapping valve；127, feed tube；128, discharging tube；13, inlet；14, leakage fluid dram；15, diverter；16, the first sealing ring；17, the second sealing ring；18, the 3rd sealing ring；19, bearing
The realization of the object of the invention, functional characteristics and advantage will in conjunction with the embodiments, are described further with reference to accompanying drawing.
Detailed description of the invention
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is only a part of embodiment of the present invention, rather than whole embodiments.Based on the embodiment in the present invention, the every other embodiment that those of ordinary skill in the art obtain under not making creative work premise, broadly fall into the scope of protection of the invention.
Need explanation, directional instruction in the embodiment of the present invention (such as up, down, left, right, before and after ...) is only for explaining relative position relation between each parts, motion conditions etc. under a certain particular pose (as shown in drawings), if this particular pose changes, then directionality instruction also correspondingly changes therewith.
It addition, in the present invention such as relating to the description of " first ", " second " etc. only for descriptive purposes, and it is not intended that instruction or imply its relative importance or the implicit quantity indicating indicated technical characteristic.Thus, define " first ", the feature of " second " can express or implicitly include at least one this feature.In describing the invention, " multiple " are meant that at least two, for instance two, three etc., unless otherwise expressly limited specifically.
In the present invention, unless otherwise clearly defined and limited, term " connection ", " fixing " etc. should be interpreted broadly, for instance, " fixing " can be fixing connection, it is also possible to is removably connect, or integral；Can be mechanically connected, it is also possible to be electrical connection；Can be joined directly together, it is also possible to be indirectly connected to by intermediary, it is possible to be connection or the interaction relationship of two elements of two element internals, unless otherwise clear and definite restriction.For the ordinary skill in the art, it is possible to understand above-mentioned term concrete meaning in the present invention as the case may be.
Additionally; technical scheme between each embodiment of the present invention can be combined with each other; but must be based on those of ordinary skill in the art are capable of; when technical scheme combination occur conflicting maybe cannot realize time will be understood that the combination of this technical scheme is absent from, also not within the protection domain of application claims.
The present invention proposes the displacement pump of a kind of eccentric wheel structure.In embodiments of the present invention, it is provided with two for fluid end assembly.
Refer to Fig. 1 to Fig. 2, in embodiments of the present invention, a kind of displacement pump of eccentric wheel structure, including: the pump housing 10, power end component 11 and fluid end assembly 12 it is provided with in the pump housing 10, power end component 11 includes: the driving axle 111 that can rotate under external actuating unit effect, drives axle 111 to run through the pump housing 10；Fluid end assembly 12 includes: eccentric 121, fluid cylinder 123 and multiple cutting plate 122, eccentric 121 and cutting plate 122 are placed in fluid cylinder 123, fluid cylinder 123, axle 111 and eccentric 121 is driven to connect the cavity volume that space is displacement pump (sign) surrounded, cutting plate 122 one end is connected with fluid cylinder 123, the other end of cutting plate 122 is close to eccentric 121, cutting plate 122 can along its length on move reciprocatingly, cavity volume is divided into multiple autonomous closure space (sign) by multiple cutting plates 122, by driving the rotation rotarily driving eccentric 121 of axle 111, thus changing the volume size closing space.nullUtilize cutting plate 122 that the cavity volume containing eccentric 121 is divided into two closed space，The reciprocating action of similar fluid cylinder plunger is produced when eccentric 121 rotates，The space of closing making segmentation produces the change on volume，Relatively conventional reciprocating pump，Eliminate dynamic movement Curve transform device，The conversion equipment of rectilinear motion it is converted into by circular motion，Owing to the mechanism kinematic parts of dynamic movement Curve transform device are more，It is all again face contact and sliding friction，Cause the many restrictions of running speed，Produce substantial amounts of heat at work，Therefore there is the life-span short，Efficiency is low，The shortcoming such as bulky，In the present invention，The center of eccentric 121 relative drive shaft 111 offsets，Cavity volume is divided into again two to close space by cutting plate 122，When driving axle 111 to rotate，The relative position of cutting plate 122 and eccentric 121 does not change，Rotation along with eccentric 121，Divided two volumes closing space change，Greatly simplify volume pump structure，Save manufacturing cost；Furthermore, eccentric 121 is placed in fluid cylinder 123, when eccentric 121 is when running, eccentric 121 is cooled down and lubricates by the liquid in fluid cylinder 123, it is not necessary to lubrication and chiller, and then simplifies volume pump structure, without using lubricating oil and cooling liquid, save the energy and cost.External connection power mechanism is (not including) diesel engine and motor.
Consulting Fig. 2, fluid end assembly 12 also includes pressure mechanism 124, and pressure mechanism 124 connects cutting plate 122 and fluid cylinder 123, when eccentric 121 rotates, compressing cutting plate 122 by pressure mechanism 124, cutting plate 122 is close to eccentric 121, it is ensured that close space sealing good.Pressure mechanism 124 is (being not limited to) spring, cylinder, and pressure mechanism 124 also can replace with other aerodynamic force or hydraulic power mechanism.In the present embodiment, for spring, eccentric 121 is along with driving axle 111 high speed rotating, the spring being connected with eccentric 121 has been squeezed one and has pointed to eccentric thrust, spring is forced to promote shim to be close to eccentric, ensure that and close the sealing that space is good, eccentric rotation could change the volume size of closed interval.
It addition, fluid end assembly 12 also includes liquid feed valve 125 and tapping valve 126, close space and be provided with liquid feed valve 125 and tapping valve 126.Each closing space individually connects liquid feed valve 125 and tapping valve 126, under the cooperation of liquid feed valve 125 and tapping valve 126, completes imbibition and draining function, thus realizing pumping liquid.
Further, fluid end assembly 12 also includes feed tube 127 and discharging tube 128, and feed tube 127 is connected with liquid feed valve 125, and discharging tube 128 is connected with tapping valve 126.In embodiments of the present invention, the imbibition work process of displacement pump is: when eccentric 121 rotates clockwise, in Fig. 1, the closed interval volume in left side can change from small to big, and liquid is sucked by inlet, opens liquid feed valve 125 under suction, liquid enters fluid cylinder 123, the discharge opeing work process of displacement pump is: eccentric 121 continues to rotate, and in Fig. 1, the closed interval volume in left side can be diminished by maximum, and now liquid feed valve 125 is stressed closedown, tapping valve 126 is opened, and is discharged by the liquid in fluid cylinder 123；Meanwhile, in Fig. 1, the closed interval volume on right side is then diminished by maximum space, and the same principle, owing to the fluid pressure of closed interval, right side rises, liquid feed valve 125 can be first shut off, and tapping valve 126 is opened, and liquid is discharged from leakage fluid dram 14.Such repetitive cycling, two closed intervals will alternate liquid sucking-discharging process under the effect of eccentric 121.
In embodiments of the present invention, fluid end assembly 12 is set to two, and fluid end assembly 12 is distributed in drive axle 111 on the circumference in the center of circle.Fluid end assembly 12 is set to two, making defeated lifting rate is a twice during fluid end assembly 12, and fluid end assembly 12 may be installed to drive axle 111 on the circumference in the center of circle, when increasing the defeated lifting rate of displacement pump, without increasing the horizontal floor space of displacement pump, very useful.
Further referring to Fig. 1, the pump housing also includes inlet 13 and leakage fluid dram 14, and inlet 13 is connected with feed tube 127, and leakage fluid dram 14 is connected with discharging tube 128.
Further, the pump housing 10 also includes diverter 15, intercommunication between diverter 15, feed tube 127 and liquid feed valve 125, and diverter 15 is installed on driving axle 111.
Referring to Fig. 2, the pump housing 10 also includes the first sealing ring the 16, second sealing ring 17 and the 3rd sealing ring 18, first sealing ring 16 is located at eccentric 121 and the junction of fluid cylinder 123, second sealing ring 17 is located at the pump housing 10 inwall and drives the junction of axle 111, and the 3rd sealing ring 18 is located at fluid cylinder 123 and the junction of the pump housing 10.First sealing ring 16 is for the junction of seal eccentric wheel 121 and fluid cylinder 123, second sealing ring 17 is for sealing the pump housing 10 and driving the junction of axle 111,3rd sealing ring 18 is for sealing fluid cylinder 123 and the junction of the pump housing 10, each sealing ring is installed on each crucial connecting portion of displacement pump, prevent interior seepage and outward leakage, it is ensured that the air-tightness of two confined spaces of divided 122 segmentation.
It addition, in the embodiment of the present invention, displacement pump also includes bearing 19, bearing 19 is located at the pump housing 10 outer wall and drives the junction of axle 111, bearing 19 is used for supporting driving axle 111, reduces the coefficient of friction driven in axle 111 motor process, and ensures to drive the rotating accuracy of axle 111.
In embodiments of the present invention, there is dynamic balancing between two eccentrics 121.Consulting Fig. 2, the eccentric 121 on displacement pump top is to the left, and the eccentric 121 of displacement pump bottom is to the right, make eccentric 121 along with in the process driving axle 111 high speed rotating, the eccentric force that the eccentric 121 that can cancel each other produces, displacement pump is in the process run, more stable.
In the embodiment of the present invention, by driving the rotation rotarily driving eccentric 121 of axle 111, eccentric 121, when rotating, directly changes the volume size in each autonomous closure space in cavity volume, it is not necessary to be further added by the dynamic movement Curve transform device of tradition displacement pump such as reciprocating pump；Owing to eccentric 121 is arranged and in fluid cylinder 123, directly contact with the liquid in fluid cylinder 123 when eccentric 121 works, without lubrication and cooling system, make the simple in construction of displacement pump, low cost of manufacture, floor space is little, drastically reduce the area because conventional motion curve is in the produced energy loss of conversion, further reduce the working strength driving axle 111, improve the service life driving axle 111.By arranging multiple fluid end assembly 12, increase discharge capacity, be present in dynamic balancing between also making eccentric 121 adjacent simultaneously, balance the eccentric force that eccentric 121 high speed rotating produces so that displacement pump runs more stable；Fluid end assembly 12 is distributed in drive axle on the circumference in the center of circle, when displacement pump right angle setting uses, being greatly saved the floor space of displacement pump；Arranging the first sealing ring the 16, second sealing ring 17 and the 3rd sealing ring 18, each sealing ring is installed on each crucial connecting portion of displacement pump, it is therefore prevented that interior seepage and outward leakage, it is ensured that the air-tightness of two confined spaces of divided 122 segmentation.
The foregoing is only the preferred embodiments of the present invention; not thereby the scope of the claims of the present invention is limited; every under the inventive concept of the present invention; utilize the equivalent structure transformation that description of the present invention and accompanying drawing content are made, or directly/be indirectly used in other relevant technical fields and be included in the scope of patent protection of the present invention.
Claims (10)
1. a displacement pump for eccentric wheel structure, including the pump housing, is provided with power end component and fluid end assembly in the described pump housing, it is characterised in that:
Described power end component includes: the driving axle that can rotate under external actuating unit effect, described driving axle runs through the described pump housing；
Described fluid end assembly includes: eccentric, fluid cylinder and multiple cutting plate, described eccentric and cutting plate are placed in described fluid cylinder, described fluid cylinder, axle and eccentric is driven to connect the cavity volume that space is described displacement pump surrounded, described cutting plate one end is connected with fluid cylinder, the other end of described cutting plate is close to described eccentric, described cutting plate can along its length on move reciprocatingly, described cavity volume is divided into multiple autonomous closure space by the plurality of cutting plate, described eccentric rotation is rotarily driven by described driving axle, thus changing the volume size in described closing space.
2. the displacement pump of eccentric wheel structure according to claim 1, it is characterized in that, described fluid end assembly also includes pressure mechanism, described pressure mechanism connects described cutting plate and described fluid cylinder, when eccentric rotates, compressing cutting plate by pressure mechanism, cutting plate is close to eccentric, it is ensured that described closing space sealing is good.
3. the displacement pump of eccentric wheel structure according to claim 2, it is characterised in that described fluid end assembly also includes liquid feed valve and tapping valve, described liquid feed valve and tapping valve are arranged in described closing space.
4. the displacement pump of eccentric wheel structure according to claim 3, it is characterised in that described fluid end assembly also includes feed tube and discharging tube, and described feed tube is connected with described liquid feed valve, and described discharging tube is connected with described tapping valve.
5. the displacement pump of eccentric wheel structure according to claim 4, it is characterised in that described fluid end assembly is provided with multiple, described fluid end components distribution is with described driving axle for the circumference in the center of circle.
6. the displacement pump of eccentric wheel structure according to claim 5, it is characterised in that the described pump housing also includes inlet and leakage fluid dram, and described inlet is connected with described feed tube, and described leakage fluid dram is connected with described discharging tube.
7. eccentric wheel structure displacement pump according to claim 6, it is characterised in that the described pump housing also includes diverter, intercommunication between described diverter, feed tube and liquid feed valve, described diverter is installed on described driving axle.
8. the displacement pump of eccentric wheel structure according to claim 7, it is characterised in that described displacement pump also includes the first sealing ring, the second sealing ring and the 3rd sealing ring, and the junction of described eccentric and fluid cylinder is located at by described first sealing ring；Described second sealing ring is located at described pump housing inwall and drives the junction of axle；The junction of described fluid cylinder and the pump housing is located at by described 3rd sealing ring.
9. the displacement pump of eccentric wheel structure according to claim 8, it is characterised in that described displacement pump also includes bearing, described bearing is located at described pump housing outer wall and described driving shaft connection place.
10. the displacement pump of the eccentric wheel structure according to any one of claim 5-9, it is characterised in that there is dynamic balancing between the plurality of eccentric.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610212403.1A CN105736363A (en) | 2016-04-06 | 2016-04-06 | Positive displacement pump of eccentric wheel structure |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610212403.1A CN105736363A (en) | 2016-04-06 | 2016-04-06 | Positive displacement pump of eccentric wheel structure |
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| CN201610212403.1A Pending CN105736363A (en) | 2016-04-06 | 2016-04-06 | Positive displacement pump of eccentric wheel structure |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106014961A (en) * | 2016-07-13 | 2016-10-12 | 禾通科技公司 | Plunger type water supply pump for building |
| CN107061264A (en) * | 2016-01-04 | 2017-08-18 | 熵零技术逻辑工程院集团股份有限公司 | Hydraulic mechanism and apply its system |
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| CN2561964Y (en) * | 2001-07-07 | 2003-07-23 | 周庆耕 | Double cam rotor blade pump |
| CN2608724Y (en) * | 2003-01-10 | 2004-03-31 | 郭松林 | Balanced cam rotor pump |
| CN1693707A (en) * | 2005-04-21 | 2005-11-09 | 重庆劲扬制冷设备制造有限公司 | Sliding block rotor pump |
| CN101270748A (en) * | 2007-03-22 | 2008-09-24 | 郭松林 | Balancing type cam rotor pump |
| CN204163981U (en) * | 2014-10-14 | 2015-02-18 | 通化市东方绿洲油俱有限责任公司 | Duplex eccentric driven pump |
| CN104389783A (en) * | 2014-10-21 | 2015-03-04 | 宜兴市宙斯泵业有限公司 | Rotating variable capacity pump with axisymmetric curved surfaces |
| CN204553213U (en) * | 2015-03-26 | 2015-08-12 | 庄勇和 | A kind of lobed rotor pump |
| CN205714745U (en) * | 2016-04-06 | 2016-11-23 | 禾通科技公司 | A kind of displacement pump of eccentric wheel structure |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107061264A (en) * | 2016-01-04 | 2017-08-18 | 熵零技术逻辑工程院集团股份有限公司 | Hydraulic mechanism and apply its system |
| CN106014961A (en) * | 2016-07-13 | 2016-10-12 | 禾通科技公司 | Plunger type water supply pump for building |
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Application publication date: 20160706 |