CN106762598B - A kind of power end of plunger pump - Google Patents
A kind of power end of plunger pump Download PDFInfo
- Publication number
- CN106762598B CN106762598B CN201611115416.3A CN201611115416A CN106762598B CN 106762598 B CN106762598 B CN 106762598B CN 201611115416 A CN201611115416 A CN 201611115416A CN 106762598 B CN106762598 B CN 106762598B
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- CN
- China
- Prior art keywords
- crankshaft
- fuselage
- bearing
- crosshead
- support plate
- 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.)
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- 239000012530 fluid Substances 0.000 claims abstract description 15
- 230000005540 biological transmission Effects 0.000 claims abstract description 11
- 238000005096 rolling process Methods 0.000 claims description 21
- 238000000034 method Methods 0.000 claims description 7
- 238000010276 construction Methods 0.000 claims description 5
- 238000007789 sealing Methods 0.000 claims description 3
- 230000008878 coupling Effects 0.000 abstract description 3
- 238000010168 coupling process Methods 0.000 abstract description 3
- 238000005859 coupling reaction Methods 0.000 abstract description 3
- 238000005336 cracking Methods 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 4
- 238000009434 installation Methods 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 240000000233 Melia azedarach Species 0.000 description 1
- 206010037660 Pyrexia Diseases 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 208000004141 microcephaly Diseases 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
- F04B53/006—Crankshafts
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
- F04B53/14—Pistons, piston-rods or piston-rod connections
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B9/00—Piston machines or pumps characterised by the driving or driven means to or from their working members
- F04B9/02—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being mechanical
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Reciprocating Pumps (AREA)
- Details Of Reciprocating Pumps (AREA)
Abstract
The present invention relates to a kind of power end of plunger pump, including fuselage, the crankshaft in fuselage is set, and acts the N group transmission component diametrically reciprocated by crankshaft band, N group transmission component is connect with N number of plunger of fluid end respectively, and wherein N is natural number；It is connected respectively by bearing between the both ends and fuselage of crankshaft；It is characterized by: as N >=2, it is equipped between crankshaft and fuselage and is more than or equal to three less than or equal to N+1 fulcrum connection structure, these fulcrum connection structures include: the bearing jointing structure between crankshaft two end and fuselage, and the bearing jointing structure of fuselage interior being less than or equal between N-1 fixed support plate and crankshaft more than or equal to 1 is arranged in.Compared with the prior art, the advantages of the present invention are as follows: it can effectively improve the service life of the mechanical coupling member between fuselage and crankshaft, moreover it is possible to prevent fuselage skidway hole cracking ends scared.
Description
Technical field
The present invention relates to a kind of power end of plunger pump.
Background technique
The power end of reciprocating plunger pump has generally comprised fuselage, be mounted on the crankshaft in fuselage, connecting rod, crosshead, in
Between bar, intermediate bar couples with the plunger of fluid end, under crankshaft drive, carries out through connecting rod, crosshead, intermediate bar driving plunger past
Multiple movement；In above-mentioned connection structure, other than crankshaft and fuselage junction installation roller bearing, between remaining friction member
Using the sliding frictions structure such as tile axle sleeve.Crosshead generally uses screw thread or form of flanges to couple with intermediate bar, intermediate bar with
Plunger connection, the crosshead slideway of fuselage generally uses whole column type or thin-wall cylinder casing setting type, if multi-cylinder structure, between cylinder
It is mutually isolated out, there are relatively narrow bridge of the nose structures between adjacent cylinder structure.The front end face of fuselage again with the fluid end pump housing into
Row connection.The power end of plunger pump of traditional design often deposits deficiency in the design, and generally existing low efficiency, noise are big, practical
Often occurs the fever of fuselage slideway nose end plucking in, stress concentrates cracking, and especially the bridge of the nose is easy to crack between cylinder, intermediate bar sealing
Be easy oil leak, assembly and dismounting are difficult, especially with fluid end couple corroded by scene after be difficult to dismantle, power end volume is big,
These inadequate natural endowments affect reciprocating plunger pump and develop to efficient, energy saving, lightweight.
Summary of the invention
The technical problem to be solved by the present invention is to provide a kind of fuselage end hair not easy to crack for the above-mentioned prior art
The power end of plunger pump of hair.
The technical scheme of the invention to solve the technical problem is: a kind of power end of plunger pump, including fuselage, if
Set the crankshaft in fuselage, and the N group transmission component diametrically reciprocated acted by crankshaft band, N group transmission component respectively with liquid
N number of plunger at power end connects, and wherein N is natural number；It is connected respectively by bearing between the both ends and fuselage of crankshaft；Its feature exists
In:
It is set as N=1, between crankshaft and fuselage there are two fulcrum connection structure, the two fulcrum connection structures are respectively as follows:
Bearing jointing structure between crankshaft two end and fuselage；
As N >=2, fuselage interior, which is fixed with, is less than or equal to a fixed support plate of N-1, each fixation more than or equal to 1
Support plate passes through bearing respectively and couples with crankshaft, therefore, between crankshaft and fuselage is equipped with and is more than or equal to three less than or equal to N+1 branch
Point connection structure, these fulcrum connection structures include: the bearing jointing structure between crankshaft two end and fuselage, and are arranged in fuselage
Internal is more than or equal to 1 bearing jointing structure being less than or equal between N-1 fixed support plate and crankshaft.
It is connected respectively by rolling bearing between the both ends and fuselage of the crankshaft, when the number of fixed support plate is 2
And at two or less, connected between fixed support plate and the trunnion of crankshaft by crankshaft sliding bearing；When fixed support plate
At three or more, two pieces close to two ends of fuselage are connected between fixed support plate and crankshaft by both sides sliding bearing number
It connects, is connected between intermediate remaining fixed support plate and crankshaft by intermediate rolling bearing.
The crankshaft be equipped with fan plate rotary table corresponding with fixed support plate number, each fixed support plate respectively with song
One fan plate rotary table of axis is coupled by bearing.
It is mounted with that two pieces are got rid of oiled-plate method, are got rid of oiled-plate method and are connected to swab case, connect in the fan plate rotary table outer circle of fuselage end
Oil box is connected to oil sump.
Waist is provided with a movement parts observation window.
The N group transmission component structure is identical, includes connecting rod and crosshead, the wherein company of the first end of connecting rod and crankshaft
Bar axle journal is coupled by rolling bearing, and the second end of connecting rod couples with the first end of crosshead, the plunger and crosshead of fluid end
Second end connection.
Be equipped with the guide rail hole for crosshead to be arranged in the fuselage, guide rail hole inner wall be equipped with N group it is symmetrically arranged on lead
Plate and bottom guide, crosshead are then fixed between upper guide plate and bottom guide.
The first end of the crosshead is equipped with front aperture, and microcephaly's bearing ten for installing connecting rods is provided in the emptying aperture of front end
It is fixed between prefix and connecting rod by crosshead pin, two ends of crosshead pin are fixed against crosshead pin shaft with retaining ring using hole
To play；The second end of the crosshead is provided with positioning round table, and hemisphere adjustment block and hemisphere adjustment are equipped in positioning round table
The core-adjustable ball of block cooperation, the outer circle of positioning round table are provided with screw thread, and the plunger of fluid end is solid by snap ring and clamping nut installation
It is scheduled on crosshead second end positioning round table outer circle.
Compared with the prior art, the advantages of the present invention are as follows: it is bent when power end drives two and more than two plungers
It is equipped between axis and fuselage and is more than or equal to three and is less than or equal to N+1 fulcrum connection structure, i.e., crankshaft and fuselage are in addition to end two
Outside fulcrum connection structure, be additionally provided with fulcrum connection structure between position and fuselage among crankshaft, can effectively improve fuselage with
The service life of mechanical coupling member between crankshaft, moreover it is possible to prevent fuselage skidway hole cracking ends scared.
Detailed description of the invention
Fig. 1 is plunger pump power end structure schematic diagram in the embodiment of the present invention；
Fig. 2 is plunger pump power terminal body structure schematic diagram in the embodiment of the present invention；
Fig. 3 is another viewing angle constructions schematic diagram of power end of plunger pump in the embodiment of the present invention；
Fig. 4 is the another viewing angle constructions schematic diagram of power end of plunger pump in the embodiment of the present invention.
Specific embodiment
The present invention will be described in further detail below with reference to the embodiments of the drawings.
The crankshaft 2 in fuselage 1 is arranged in power end of plunger pump as shown in figures 1-4, including fuselage 1, and by 2 band of crankshaft
The N group transmission component diametrically reciprocated is acted, N group transmission component is connect with N number of plunger 10 of fluid end respectively, and wherein N is
Natural number；It is connected respectively by bearing between the both ends and fuselage of crankshaft 2；
It is set as N=1, between crankshaft and fuselage there are two fulcrum connection structure, the two fulcrum connection structures are respectively as follows:
Bearing jointing structure between crankshaft two end and fuselage；
As N >=2, fuselage interior, which is fixed with, is less than or equal to a fixed support plate 22, Mei Gegu of N-1 more than or equal to 1
Determine support plate 22 to couple by bearing with crankshaft respectively, therefore, between crankshaft 2 and fuselage is equipped with and is more than or equal to three less than or equal to N+
1 fulcrum connection structure, these fulcrum connection structures include: the bearing jointing structure between crankshaft two end and fuselage, and setting
It is more than or equal to 1 bearing jointing structure being less than or equal between N-1 fixed support plate and crankshaft in fuselage interior.Therefore, when
When power end drives more than two plungers, between crankshaft 2 and fuselage, in addition to the bearing between crankshaft two end and fuselage connects knot
Outside structure, bearing jointing structure is additionally provided between 2 middle part of crankshaft and fuselage.Setting bearing connects between 2 middle part of crankshaft and fuselage
Binding structure can effectively improve the service life of the mechanical coupling member between fuselage and crankshaft, moreover it is possible to prevent fuselage slideway bore ends
It cracks scared.
Since the volume of power end of plunger pump is often huger, when power end of plunger pump needs to drive multiple plungers,
Crankshaft often takes separate structure, i.e., the crankshaft of a root long is connected by multistage crankshaft, in order to eliminate the axis between seperated crankshaft
To error, between the both ends and fuselage of the crankshaft respectively by rolling bearing connect, when fixed support plate number be 2 and
At two or less, connected between fixed support plate and crankshaft by crankshaft sliding bearing；When the number of fixed support plate is at three
When above, two pieces close to two ends of fuselage are connected between fixed support plate and crankshaft by both sides sliding bearing 23, are in
It is connected between intermediate remaining fixed support plate and crankshaft by intermediate rolling bearing 7.Therefore the branch between crankshaft 2 and fuselage 1
Point connection structure is combined using rolling bearing with sliding bearing, and mechanical efficiency and bearing pair service life are effectively improved.Certainly, this
Mode, it is equally applicable for integral one-piece crankshaft.
For N=5, power end of plunger pump structure of the invention is described in detail, the plunger pump power
End includes fuselage 1, crankshaft 2, connecting rod 3, crosshead 4, upper guide plate 5, bottom guide 6, intermediate rolling bearing 7, the big end axis of rolling
Hold 8, Lian little Tou needle bearing 9, conjuncted plunger 10, core-adjustable ball 11, hemisphere adjustment block 12, snap ring 13, clamp nut 14, seal box
Baffle 15, seal box 16, crosshead pin 17, crankshaft rolling bearing 18, bearing lead to lid 19, bearing boring cover 20, swab case 21, fix
Support plate 22, two side sliding bearings 23 and disc 24, referring to shown in Fig. 1~3.
Fuselage 1 is five cylinder structures, and there are six fulcrum connection structures for tool between fuselage 1 and crankshaft 2, is respectively as follows: crankshaft two end
18 connection structure of crankshaft rolling bearing between fuselage is arranged in 4 of fuselage interior between fixed support plate and crankshaft
Bearing jointing structure, wherein two pieces close to two ends of fuselage pass through both sides sliding bearing 23 between fixed support plate and crankshaft
Connection is connected between fixed support plate and crankshaft by intermediate rolling bearing 7 in intermediate two.Wherein intermediate two fixations
It is rolling bearing connection between support plate and crankshaft, between two end of crankshaft and fuselage, the radial force moment of flexure of crankshaft can be born, increases
Add stiffness；Two auxiliary fulcrum connection structures close to two side of fuselage end are sliding bearing, are mainly used for as seperated assembled
Crankshaft assists the stress moment of flexure that crankshaft A, B, C, D are turned, and lowers the stress point of crankshaft, fuselage, and spy is suitble to five cylinders or more more
It is applied on cylinder pump power end.
The crankshaft is provided with six fan plate rotary tables, intermediate four fan plate rotary tables respectively with four fixed support plates it
Between pass through bearing and connect, it may be assumed that aforementioned intermediate rolling bearing 7 is installed in intermediate two adjacent fan plate rotary table outer circles, in centre
Aforementioned two side sliding bearing 23 is installed in other two fan plate rotary table outer circle, outside two pieces of fan plate rotary tables of fuselage end
It is separately installed on circle and gets rid of oiled-plate method 24, got rid of oiled-plate method 24 and be connected to swab case 21, swab case 21 is connected to oil sump.
The N group transmission component structure is identical, includes connecting rod 3 and crosshead 4, the wherein first end and crankshaft of connecting rod 3
Rod journal coupled by big end rolling bearing 8, the second end of connecting rod 3 couples with the first end of crosshead 4, fluid end
Plunger 10 couple with the second end of crosshead 4.The first end of the crosshead 4 is equipped with front aperture, is provided in the emptying aperture of front end
It is fixed by crosshead pin 17 between 3 second end of crosshead 4 and connecting rod for the small end of connecting rod rolling bearing 9 of installing connecting rods 3,
Two ends of crosshead pin 17 are fixed against crosshead pin axial float with retaining ring using hole；The second end of crosshead is provided with fixed
Circle of position platform, is equipped with the core-adjustable ball 11 that hemisphere adjustment block 12 and hemisphere adjustment block 12 cooperate in positioning round table, positioning round table it is outer
Circle is provided with screw thread, and the plunger 10 of fluid end is fixed on crosshead second end setting circle by snap ring 13 and clamping nut 14
Platform outer circle.
The guide rail hole for being used to be arranged N number of crosshead up and down is equipped in the fuselage 1, which is that left and right is also passed through
Logical unenclosed construction, guide rail hole inner wall are equipped with the symmetrically arranged upper guide plate 5 of N group and bottom guide 6, and N number of crosshead 4 is solid respectively
It is scheduled between the symmetrically arranged upper guide plate 5 of N group and bottom guide 6, the fuselage 1 is kept off with fluid end intersection equipped with disjunctor seal box
Plate 15, disjunctor seal box baffle 15 are equipped with N number of open type and seal cartridge apertures, be respectively equipped with and N number of plunger in each sealing cartridge apertures
10 seal boxes 16 sealingly connected；Therefore it is not isolated between N number of plunger.Crosshead second end and disjunctor seal box baffle 15 it
Between there are the gap windows 25 for plunger 10, hemisphere adjustment block 12, core-adjustable ball 11, snap ring 13 and clamping nut 14；Waist
It is provided with a movement parts observation window 27.
Power end of plunger pump provided in this embodiment compared with prior art, advantage are as follows:
1, the fuselage of Five-cylinder piston pump power end uses six fulcrum connection structures, using rolling bearing and sliding bearing phase
In conjunction with suitable for seperated crankshaft, the sliding friction for changing conventional Five-cylinder piston pump becomes rolling friction, effectively improves mechanical efficiency
And the bearing pair service life；
2, between the crosshead and guide rail hole of fuselage, between crosshead and seal box, fuselage and the pump housing are fitted and connected place
It is all made of unenclosed construction, mutually without isolation between cylinder, cancels the bridge of the nose between original structure fuselage cylinder, reduce various stress points,
Help to crack caused by fuselage is concentrated due to each stress；
3, the plunger body of fluid end is directly coupled in crosshead, reduces the intermediate extension bar in original structure, is reduced in this way
Workpiece accumulated error, the length for improving assembly precision, shortening fuselage improve mechanical strength, the stiffness of whole pump, dismount column
Cock body is more convenient, reduces manufacturing cost.
Claims (8)
1. a kind of power end of plunger pump, including fuselage (1), the crankshaft (2) being arranged in fuselage (1), and acted by crankshaft (2) band
The N group transmission component diametrically reciprocated, N group transmission component are connect with N number of plunger (10) of fluid end respectively, and wherein N is certainly
So number；It is connected respectively by bearing between the both ends and fuselage of crankshaft (2)；It is characterized by:
It is set as N=1, between crankshaft and fuselage there are two fulcrum connection structure, the two fulcrum connection structures are respectively as follows: crankshaft
Bearing jointing structure between both ends and fuselage；
As N >=2, fuselage interior, which is fixed with, is less than or equal to a fixed support plate (22) of N-1, each fixation more than or equal to 1
Support plate (22) is coupled by bearing with crankshaft respectively, therefore, is equipped between crankshaft (2) and fuselage and is less than or equal to more than or equal to three
N+1 fulcrum connection structure, these fulcrum connection structures include: the bearing jointing structure between crankshaft two end and fuselage, and are set
It sets and is more than or equal to 1 bearing jointing structure being less than or equal between N-1 fixed support plate and crankshaft in fuselage interior；
The fuselage (1) and fluid end intersection are equipped with disjunctor seal box baffle (15), and disjunctor seal box baffle (15) is equipped with N
The sealing cartridge apertures of a open type, it is each to seal the seal box (16) for being respectively equipped in cartridge apertures and sealingly connecting with N number of plunger (10)；Institute
It is identical to state N group transmission component structure, includes connecting rod (3) and crosshead (4)；It is equipped in the fuselage (1) for being arranged N number of ten
The guide rail hole (26) of prefix, the guide rail hole (26) are up and down, control the unenclosed construction also penetrated through.
2. power end of plunger pump according to claim 1, it is characterised in that: the both ends of the crankshaft (2) and fuselage (1) it
Between respectively by crankshaft rolling bearing (18) connect, when the number of fixed support plate be two or one when, fixed support plate
(22) it is connect between crankshaft (2) by sliding bearing；When the number of fixed support plate is at three or more, close to two, fuselage
Two pieces of end are connected between fixed support plate and crankshaft by both sides sliding bearing (23), in the intermediate fixed support of residue
It is connected between plate and crankshaft by intermediate rolling bearing (7).
3. power end of plunger pump according to claim 2, it is characterised in that: the crankshaft is equipped with multiple fan plates circle
Platform, each fixed support plate (22) are coupled with a fan plate rotary table of crankshaft by bearing respectively.
4. power end of plunger pump according to claim 3, it is characterised in that: close to two pieces of fan plate rotary tables of fuselage end
It is separately installed in outer circle and gets rid of oiled-plate method (24), got rid of oiled-plate method (24) and be connected to swab case (21), swab case (21) is connected to oil sump.
5. power end of plunger pump according to claim 1, it is characterised in that: be provided with a movement parts in the middle part of fuselage (1)
Observation window (27).
6. power end of plunger pump described in claim according to claim 1~any one of 5, it is characterised in that: the company
The first end of bar (3) is coupled with the rod journal of crankshaft by big end rolling bearing (8), the second end and ten of connecting rod (3)
The first end of prefix (4) couples, and the plunger (10) of fluid end couples with the second end of crosshead (4).
7. power end of plunger pump according to claim 6, it is characterised in that: guide rail hole (26) inner wall is equipped with and symmetrically sets
The upper guide plate (5) and bottom guide (6) set, crosshead (4) are then fixed between upper guide plate (5) and bottom guide (6).
8. power end of plunger pump according to claim 6, it is characterised in that: before the first end of the crosshead (4) is equipped with
Stomidium, is provided with the small end of connecting rod rolling bearing (9) for installing connecting rods (3) in front aperture, crosshead (4) and connecting rod (3) it
Between it is fixed by crosshead pin (17), the both ends of crosshead pin (17) are fixed against crosshead pin with retaining ring using hole and axially alter
It is dynamic；The second end of the crosshead is provided with positioning round table, be equipped in positioning round table hemisphere adjustment block (12) and with hemisphere tune
The core-adjustable ball (11) of monolith (12) cooperation, the outer circle of positioning round table are provided with screw thread, and the plunger (10) of fluid end passes through snap ring
(13) and clamping nut (14) is fixed on crosshead second end positioning round table outer circle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611115416.3A CN106762598B (en) | 2016-12-07 | 2016-12-07 | A kind of power end of plunger pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611115416.3A CN106762598B (en) | 2016-12-07 | 2016-12-07 | A kind of power end of plunger pump |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106762598A CN106762598A (en) | 2017-05-31 |
| CN106762598B true CN106762598B (en) | 2019-08-13 |
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ID=58876976
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611115416.3A Active CN106762598B (en) | 2016-12-07 | 2016-12-07 | A kind of power end of plunger pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106762598B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108167174A (en) * | 2017-12-04 | 2018-06-15 | 北京天地玛珂电液控制系统有限公司 | A kind of branched support emulsion pump |
| CN110685881A (en) * | 2019-09-27 | 2020-01-14 | 平顶山市神马万里化工股份有限公司 | Driving device for linkage of multiple pump heads |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201176911Y (en) * | 2007-11-13 | 2009-01-07 | 南京六合煤矿机械有限责任公司 | Emulsion pump suitable for down-hole of coal mine |
| CN201650711U (en) * | 2009-12-26 | 2010-11-24 | 浙江工业大学 | Reciprocating pump |
| CN206234102U (en) * | 2016-12-07 | 2017-06-09 | 宁波合力机泵股份有限公司 | A kind of power end of plunger pump |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10024546B4 (en) * | 2000-05-18 | 2004-07-15 | Lewa Herbert Ott Gmbh + Co | Multiple crank drive for triplex diaphragm pumps |
| JP4231385B2 (en) * | 2003-10-31 | 2009-02-25 | 株式会社スギノマシン | High pressure plunger pump |
-
2016
- 2016-12-07 CN CN201611115416.3A patent/CN106762598B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201176911Y (en) * | 2007-11-13 | 2009-01-07 | 南京六合煤矿机械有限责任公司 | Emulsion pump suitable for down-hole of coal mine |
| CN201650711U (en) * | 2009-12-26 | 2010-11-24 | 浙江工业大学 | Reciprocating pump |
| CN206234102U (en) * | 2016-12-07 | 2017-06-09 | 宁波合力机泵股份有限公司 | A kind of power end of plunger pump |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106762598A (en) | 2017-05-31 |
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