CN109162883A - A kind of three plunger water pump of super-pressure - Google Patents
A kind of three plunger water pump of super-pressure Download PDFInfo
- Publication number
- CN109162883A CN109162883A CN201811057842.5A CN201811057842A CN109162883A CN 109162883 A CN109162883 A CN 109162883A CN 201811057842 A CN201811057842 A CN 201811057842A CN 109162883 A CN109162883 A CN 109162883A
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- China
- Prior art keywords
- plunger
- super
- cushion block
- water pump
- valve
- 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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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 58
- 239000000565 sealant Substances 0.000 claims abstract description 17
- 238000012856 packing Methods 0.000 claims abstract description 8
- 238000009434 installation Methods 0.000 claims abstract description 5
- 239000000463 material Substances 0.000 claims description 5
- 239000000203 mixture Substances 0.000 claims description 5
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 3
- 229920006231 aramid fiber Polymers 0.000 claims description 3
- 229910052799 carbon Inorganic materials 0.000 claims description 3
- 229910001220 stainless steel Inorganic materials 0.000 claims description 3
- 239000010935 stainless steel Substances 0.000 claims description 3
- 239000004698 Polyethylene Substances 0.000 claims description 2
- -1 polyethylene Polymers 0.000 claims description 2
- 229920000573 polyethylene Polymers 0.000 claims description 2
- 238000007789 sealing Methods 0.000 abstract description 12
- 239000007788 liquid Substances 0.000 description 9
- 238000001816 cooling Methods 0.000 description 7
- 238000005516 engineering process Methods 0.000 description 5
- 239000002585 base Substances 0.000 description 4
- 239000000498 cooling water Substances 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 238000012279 drainage procedure Methods 0.000 description 2
- 239000000839 emulsion Substances 0.000 description 2
- 239000000835 fiber Substances 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- UONOETXJSWQNOL-UHFFFAOYSA-N tungsten carbide Chemical compound [W+]#[C-] UONOETXJSWQNOL-UHFFFAOYSA-N 0.000 description 2
- 239000002253 acid Substances 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- JEGUKCSWCFPDGT-UHFFFAOYSA-N h2o hydrate Chemical compound O.O JEGUKCSWCFPDGT-UHFFFAOYSA-N 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000010687 lubricating oil Substances 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
Classifications
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- 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
- F04B1/00—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders
-
- 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
- F04B53/02—Packing the free space between cylinders and pistons
-
- 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
- F04B53/10—Valves; Arrangement of valves
- F04B53/102—Disc valves
-
- 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
- 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
- F04B53/143—Sealing provided on the piston
-
- 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
- F04B53/16—Casings; Cylinders; Cylinder liners or heads; Fluid connections
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Details Of Reciprocating Pumps (AREA)
Abstract
The present invention provides three plunger water pumps of super-pressure, including cabinet, valve seat, hubcap and rear cover；Crankshaft is equipped in hubcap, there are three connecting rods, the bottom of three connecting rods to connect by pin shaft with piston for installation on crankshaft；The lower section of piston is equipped with plunger cushion block, connects plunger below plunger cushion block, the upper end of plunger is arranged with upper prop plug sleeve, installs plunger ring between upper prop plug sleeve and plunger；The lower end of plunger is arranged in cylinder barrel, lower plunger bushing is equipped between plunger and cylinder barrel, the annular gap that the top of lower plunger bushing is formed between cylinder barrel and plunger, sealant is equipped in annular gap, the top of sealant is fixed by clamping pad, sealant is made of three-layer disc root ring and cushion block, and cushion block is arranged on the top outer side of top layer's packing ring；The bottom of plunger is equipped with water suction check valve and check valve of water drainage.It can guarantee the concentricity of plunger when the invention works, and by the sealant of specific structure, improve sealing performance, greasy property and service life.
Description
Technical field
The present invention relates to water pumps, in particular to three plunger water pump of super-pressure.
Background technique
Water pump is the machinery for conveying liquid or being pressurized liquid.It transmits the mechanical energy of prime mover or other external energies
To liquid, increase liquid energy, is mainly used to convey liquid to include water, oil, acid & alkali liquid, emulsion, suspended emulsion and liquid gold
Belong to etc..
Also liquid, admixture of gas and the liquid containing suspended solids be can transport.The technical parameter of pump performance has stream
Amount, suction, lift, shaft power, water power, efficiency etc.；The classes such as volume water pump, vane pump can be divided into according to different working principles
Type.Positive displacement pump is to transmit energy using the variation of its swept volume of a single chamber；Vane pump is the phase interaction using rotary vane and water
For transmitting energy, there are the types such as centrifugal pump, axial-flow pump and mixed-flow pump.
Super-pressure water pump is the common high pressure water power source device of modern industry, is widely used in coal, mine, metallurgy, iron
The fields such as road, lathe, the mechanical, cleaning of pressure testing.All the time, the research and development of domestic high-pressure hydraulic pump are mainly to convert foreign technology
It is main, it is digested and is absorbed on the basis of introduction of foreign technology, but there is no the real core technology of high-pressure hydraulic pump is grasped, especially
It is inhaled, the deficiency of drain valve technical aspect in plunger seal, leads to that product service life is short, operation noise is big, volumetric efficiency
Low defect is unable to satisfy the requirement of high-end industry.
Summary of the invention
Solve that existing high-pressure plunger pump seal is poor, and leak is serious the technical problem to be solved in the present invention is to provide one kind,
Three plunger water pump of super-pressure of working efficiency the problems such as high life is not short.
In order to achieve the above objectives, technical scheme is as follows:
Three plunger water pump of super-pressure including cabinet, is arranged in the valve seat of the bottom of box, the hubcap of top of the box is arranged in
And the rear cover above hubcap is set；Crankshaft is equipped in the hubcap, there are three connecting rod, three connecting rods for installation on crankshaft
Bottom extend into cabinet, the bottoms of three connecting rods is connect by pin shaft with piston；The lower section of piston is equipped with plunger cushion block, column
Plunger is connected below choker block block, the upper end of plunger is arranged with upper prop plug sleeve, installs plunger ring between upper prop plug sleeve and plunger；Plunger
Lower end be arranged in cylinder barrel, between plunger and cylinder barrel be equipped with lower plunger bushing, the top of lower plunger bushing is between cylinder barrel and plunger
The annular gap of formation is equipped with sealant in annular gap, and the top of sealant is fixed by clamping pad, and sealant is by three-layer disc
Root ring and cushion block composition, the stacked setting of three-layer disc root ring, cushion block are arranged on the top outer side of top layer's packing ring；Plunger
Bottom is equipped with water suction check valve and check valve of water drainage.
In one embodiment of the invention, sealing shroud is equipped between piston and plunger cushion block.
In one embodiment of the invention, pressure spring is equipped between upper prop plug sleeve bottom and box house mounting surface.
In one embodiment of the invention, packing ring is made of aramid fiber and carbon fibre shuffling.
In one embodiment of the invention, cushion block is made of ultra high molecular polyethylene material.
In one embodiment of the invention, crankshaft is mounted in hubcap by bearing.
In one embodiment of the invention, water suction check valve is made of valve body, water suction valve block, suction valve flat spring.
In one embodiment of the invention, check valve of water drainage is by valve body, draining valve pad, draining valve pad spring, drain valve
Guide holder composition.
In one embodiment of the invention, water suction valve block and draining valve pad avigation piece heat-resistance stainless steel material are made.
In one embodiment of the invention, plunger is equipped with base pressure water-stop.
Through the above technical solutions, the beneficial effects of the present invention are:
The present invention passes through piston actuator plunger cushion block, the assembly of plunger ring and plunger bushing, adjust automatically plunger and plunger
The concentricity of set, improves service life and working efficiency；And by the sealant of specific structure, the leakproofness of water pump is improved
Energy, greasy property and service life.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
It obtains other drawings based on these drawings.
Fig. 1 is top view of the present invention；
Fig. 2 is transverse sectional view of the present invention；
Fig. 3 is the enlarged drawing of A in Fig. 2；
Fig. 4 is the enlarged drawing of B in Fig. 2；
Fig. 5 is cooling principle Fig. 1 of the present invention；
Fig. 6 is cooling principle Fig. 2 of the present invention；
Fig. 7 is sectional view of the present invention；
10, cabinet 20, valve seat 30, hubcap 31, bearing 40, rear cover 50, crankshaft 60, connecting rod 61, pin shaft 70,
Piston 80, plunger cushion block 90, plunger 91, upper prop plug sleeve 92, base pressure water-stop 93, lower plunger bushing 100, plunger ring
110, cylinder barrel 120, sealant 121, packing ring 122, cushion block 123, clamping pad 130, valve body 140, water suction valve block 150,
Suction valve flat spring 160, draining valve pad 170, draining valve pad spring 180, drain valve guide holder 190, sealing shroud 200, pressure
Spring 210, plunger waterway 220, crankcase waterway.
Specific embodiment
In order to be easy to understand the technical means, the creative features, the aims and the efficiencies achieved by the present invention, tie below
Conjunction is specifically illustrating, and the present invention is further explained.
Referring to FIG. 1 to FIG. 4, the invention discloses three plunger water pumps of super-pressure, including cabinet 10, setting are at cabinet bottom
The valve seat 20 in portion, the hubcap 30 that top of the box is set and the rear cover 40 being arranged in above hubcap.
Crankshaft 50 is equipped in hubcap 30, crankshaft 50 is mounted in hubcap 30 by bearing 31, one end of crankshaft 50 from
30 side of hubcap is stretched out, and one end of stretching is equipped with flat key slot, can pass through the devices such as belt pulley or shaft coupling and external drive
Motor connection, for driving pump operation.
There are three connecting rod 60, the bottom of three connecting rods 60 is extend into cabinet 10 for installation on crankshaft 50, three connecting rods 60
Bottom is connect by pin shaft 61 with piston 70；The lower section of piston 70 is equipped with plunger cushion block 80, connects plunger below plunger cushion block 80
90, the upper end of plunger 90 is arranged with upper prop plug sleeve 91, and plunger 90 is equipped with base pressure water-stop 92, upper prop plug sleeve 91 and plunger 90 it
Between install plunger ring 100；When work, connecting rod 60 drives plunger cushion block 80, plunger ring 100 and upper prop plug sleeve 91 by piston 70
Assembly, the concentricity of adjust automatically tungsten carbide plunger 90 and upper prop plug sleeve 91, moves reciprocatingly in upper prop plug sleeve 91.
The lower end of plunger 90 is arranged in cylinder barrel 110, and lower plunger bushing 93, lower plunger are equipped between plunger 90 and cylinder barrel 110
The annular gap that 93 top is formed between cylinder barrel 110 and plunger 90 is covered, is equipped with sealant 120, sealant in annular gap
120 top is fixed by clamping pad 123, and sealant 120 is made of three-layer disc root ring 121 and cushion block 122, three-layer disc root ring
121 stacked settings, cushion block 122 are arranged on the top outer side of top layer's packing ring 121；When work, generated using water pump
High pressure makes lower plunger bushing 93 apply pressure cooperation cushion block 122 to three-layer disc root ring 121 automatically, make 121 internal diameter of packing ring automatically with
90 outside diameter seal of tungsten carbide plunger makes the sealant have self-sealing, cooperates the plunger waterway 210 of cylinder body, every layer of sealing
The water that layer leakage comes can all cool down it, and because its coefficient of heat conduction is small, the heat of cylinder barrel 110 and lower plunger bushing 93
Amount is not easy to pass on sealant.
Referring to shown in Fig. 5 to Fig. 7, cooling procedure of the invention is as follows:
Cold water outlet is intake from the base pressure of high-pressure pump flows into water cooling water outlet connector-C, by water pipe be connected to crankcase it is cooling into
Water swivel-D, it is cooling to the lubricating oil in crankcase by crankcase waterway 220, then from crankcase cooling water outlet connector-E
By water pipe, plunger waterway water supply connector-F is flowed to, comes into full contact with cooling with reciprocal plunger 90 in plunger waterway, then
Five-way joint-H is flowed to from plunger waterway water outlet connector-G, is finally discharged from cooling water water outlet connector-I.
The three-layer disc root ring 121 made of aramid fiber and carbon fibre shuffling of sealant 120 and and high temperature resistant, antifriction
Cushion block 122 made of the supra polymer that Ca, Fan tool intensity are high, self-lubricating property is good forms；Such combination sealing has excellent
Sealing performance and self-lubricating property, from cooling performance, ensure that long service life.
In the suction of valve seat 20, drainage cavity the position of corresponding three plungers 90 there are three inhale, draining valve body 130, plunger 90
Bottom is equipped with water suction check valve and check valve of water drainage；Check valve absorb water by valve body 130, water suction valve block 140, suction valve flat spring
150 compositions, the valve are opened during pump sump, are closed in drainage procedure；Check valve of water drainage is by valve body 130, drain valve
Pad 160, draining valve pad spring 170, drain valve guide holder 180 form, which closes during pump sump, in drainage procedure
Middle opening.
It is equipped with sealing shroud 190 between inventive piston 70 and plunger cushion block 80, improves sealing performance.
It is equipped with pressure spring 200 between 91 bottom of upper prop plug sleeve of the present invention and 10 inboard mounting surface of cabinet, improves plunger installation
Stability afterwards concentricity provides for good condition for plunger 90 and upper prop plug sleeve 91.
Water suction valve block and draining valve pad avigation piece heat-resistance stainless steel material are made, and sealing surface is made by fine gtinding,
This kind of valve block is set to have sealing characteristics good, the characteristics of long service life；Since sealing characteristics are good, air capacity pole that when water suction sucks
Small, the quick-fried phenomenon of high pressure water mitigates significantly, cavitation and running noises when effectively reducing water pump operation.
The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention.The technology of the industry
Personnel are it should be appreciated that the present invention is not limited to the above embodiments, and the above embodiments and description only describe this
The principle of invention, without departing from the spirit and scope of the present invention, various changes and improvements may be made to the invention, these changes
Change and improvement all fall within the protetion scope of the claimed invention.The claimed scope of the invention by appended claims and its
Equivalent thereof.
Claims (10)
1. three plunger water pump of super-pressure, including cabinet, valve seat that the bottom of box is set, be arranged in the hubcap of top of the box with
And the rear cover above hubcap is set；It is characterized in that, being equipped with crankshaft in the hubcap, there are three connect for installation on crankshaft
The bottom of bar, three connecting rods is extend into cabinet, and the bottom of three connecting rods is connect by pin shaft with piston；The lower section of piston is equipped with
Plunger cushion block, plunger cushion block lower section connect plunger, and the upper end of plunger is arranged with upper prop plug sleeve, installs between upper prop plug sleeve and plunger
Plunger ring；The lower end of plunger is arranged in cylinder barrel, and lower plunger bushing is equipped between plunger and cylinder barrel, and the top of lower plunger bushing is cylinder barrel
The annular gap formed between plunger is equipped with sealant in annular gap, and the top of sealant is fixed by clamping pad, seals
Layer is made of three-layer disc root ring and cushion block, and the top outer of top layer's packing ring is arranged in the stacked setting of three-layer disc root ring, cushion block
Bian Shang；The bottom of plunger is equipped with water suction check valve and check valve of water drainage.
2. three plunger water pump of super-pressure according to claim 1, which is characterized in that be equipped between piston and plunger cushion block close
Big envelope.
3. three plunger water pump of super-pressure according to claim 1, which is characterized in that upper prop plug sleeve bottom and box house are pacified
Pressure spring is equipped between dress face.
4. three plunger water pump of super-pressure according to claim 1, which is characterized in that packing ring is fine by aramid fiber and carbon
Dimension shuffling is made.
5. three plunger water pump of super-pressure according to claim 1, which is characterized in that cushion block is by ultra high molecular polyethylene material
It is made.
6. three plunger water pump of super-pressure according to claim 1, which is characterized in that crankshaft is mounted on hubcap by bearing
It is interior.
7. three plunger water pump of super-pressure according to claim 1, which is characterized in that water suction check valve is by valve body, suction valve
Piece, suction valve flat spring composition.
8. three plunger water pump of super-pressure according to claim 1, which is characterized in that check valve of water drainage is by valve body, drain valve
Pad, draining valve pad spring, drain valve guide holder composition.
9. three plunger water pump of super-pressure according to claim 1, which is characterized in that water suction valve block and draining valve pad avigation piece
Heat-resistance stainless steel material is made.
10. three plunger water pump of super-pressure according to claim 1, which is characterized in that plunger is equipped with base pressure water-stop.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811057842.5A CN109162883A (en) | 2018-09-11 | 2018-09-11 | A kind of three plunger water pump of super-pressure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811057842.5A CN109162883A (en) | 2018-09-11 | 2018-09-11 | A kind of three plunger water pump of super-pressure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109162883A true CN109162883A (en) | 2019-01-08 |
Family
ID=64894850
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811057842.5A Pending CN109162883A (en) | 2018-09-11 | 2018-09-11 | A kind of three plunger water pump of super-pressure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109162883A (en) |
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| CN2448943Y (en) * | 2000-04-12 | 2001-09-19 | 长沙市试压泵厂 | Multifunctional high-pressure reciprocating pump |
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| CN102434435A (en) * | 2011-12-19 | 2012-05-02 | 安庆市佰联无油压缩机有限公司 | Oil-free lubrication high-pressure air compressor |
| CN103321866A (en) * | 2012-03-25 | 2013-09-25 | 山西方盛液压机电设备有限公司 | Ultrahigh pressure three-plunger water pump |
| CN203441736U (en) * | 2013-08-12 | 2014-02-19 | 米顿罗工业设备（上海）有限公司 | Self-aligning structure for plunger and crosshead of reciprocating pump |
| CN203948283U (en) * | 2014-05-16 | 2014-11-19 | 浙江欧耀机械有限公司 | A kind of interior circulating cooling plunger pump |
| CN204663798U (en) * | 2015-04-10 | 2015-09-23 | 宁波以赛亚汽车空压机有限公司 | A kind of piston type air compressor |
| CN106089688A (en) * | 2016-08-22 | 2016-11-09 | 天津市精诚高压泵制造有限责任公司 | High-pressure pump plunger |
| CN106224226A (en) * | 2016-08-30 | 2016-12-14 | 宁波合力机泵股份有限公司 | A kind of plungers pump plunger regulation of mental activities structure |
| CN206503707U (en) * | 2017-02-07 | 2017-09-19 | 陈勇 | Plungers pump plunger and tappet self correction attachment structure |
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| CN207333124U (en) * | 2017-09-29 | 2018-05-08 | 上海水威环境技术股份有限公司 | A kind of micro- water pump of super-pressure |
| CN207701346U (en) * | 2017-11-09 | 2018-08-07 | 合肥华升泵阀股份有限公司 | A kind of spherical stopper head connection structure |
| CN108457830A (en) * | 2018-04-19 | 2018-08-28 | 安徽德鸿机件制造有限公司 | A kind of three elevated pressure electrodynamic pump of single plunger based on regular triangular cam |
| CN209025800U (en) * | 2018-09-11 | 2019-06-25 | 上海水威环境技术股份有限公司 | A kind of three plunger water pump of super-pressure |
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