CN109538433A - A kind of point contact fully water lubricating axial multiple plunger volumetric water pump - Google Patents
A kind of point contact fully water lubricating axial multiple plunger volumetric water pump Download PDFInfo
- Publication number
- CN109538433A CN109538433A CN201811597194.2A CN201811597194A CN109538433A CN 109538433 A CN109538433 A CN 109538433A CN 201811597194 A CN201811597194 A CN 201811597194A CN 109538433 A CN109538433 A CN 109538433A
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- China
- Prior art keywords
- plunger
- main shaft
- cylinder body
- right end
- end cap
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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
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B1/00—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders
- F04B1/12—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinder axes coaxial with, or parallel or inclined to, main shaft axis
- F04B1/14—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinder axes coaxial with, or parallel or inclined to, main shaft axis having stationary cylinders
- F04B1/16—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinder axes coaxial with, or parallel or inclined to, main shaft axis having stationary cylinders having two or more sets of cylinders or pistons
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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
- F04B1/12—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinder axes coaxial with, or parallel or inclined to, main shaft axis
- F04B1/14—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinder axes coaxial with, or parallel or inclined to, main shaft axis having stationary cylinders
- F04B1/141—Details or component parts
-
- 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
- F04B1/12—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinder axes coaxial with, or parallel or inclined to, main shaft axis
- F04B1/14—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinder axes coaxial with, or parallel or inclined to, main shaft axis having stationary cylinders
- F04B1/141—Details or component parts
- F04B1/143—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
- F04B1/00—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders
- F04B1/12—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinder axes coaxial with, or parallel or inclined to, main shaft axis
- F04B1/14—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinder axes coaxial with, or parallel or inclined to, main shaft axis having stationary cylinders
- F04B1/141—Details or component parts
- F04B1/145—Housings
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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
- F04B1/12—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinder axes coaxial with, or parallel or inclined to, main shaft axis
- F04B1/14—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinder axes coaxial with, or parallel or inclined to, main shaft axis having stationary cylinders
- F04B1/18—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinder axes coaxial with, or parallel or inclined to, main shaft axis having stationary cylinders having self-acting distribution members, i.e. actuated by working fluid
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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
- 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
- F04B53/08—Cooling; Heating; Preventing freezing
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Reciprocating Pumps (AREA)
- Details Of Reciprocating Pumps (AREA)
Abstract
The invention discloses a kind of point contact fully water lubricating axial multiple plunger volumetric water pump, including cylinder body and pump case, cylinder body left end is connected with left end cap, and cylinder body right end is connect with pump case, and pump case right end is equipped with right end cap；Pump case is equipped with inner cavity, offers water inlet in the cavity wall of inner cavity, main shaft is equipped in inner cavity, main shaft both ends are equipped with the left and right bearing of main shaft, and the left and right bearing of main shaft is respectively supported at cylinder center and pump case right end cap center；Thrust swash plate is equipped in the middle part of main shaft, thrust swash plate two sides are equipped with left thrust bearing and right thrust bearing；It is evenly equipped with cylinder holes on the same circumference of cylinder body right end face, plunger and plunger ball are installed in cylinder holes, plunger base is equipped with discharge van and extrudes valve base；Plunger head is equipped with inlet valve.The configuration of the present invention is simple, manufacturing cost are low；Reliable operation, long service life；Contamination resistance is strong；Output flow and pressure fluctuation are small；Intake performance is good；It is high-efficient.
Description
Technical field
The present invention relates to water pump more particularly to a kind of point contact fully water lubricating axial multiple plunger volumetric water pumps.It is one
The working medias (seawater, fresh water, HFA high water base fluid or other low-viscosity (mobile) liquids) that all friction pairs of kind are pumped by it are direct
Lubrication, cooling novel point contact, Flat valve, axial multiple plunger volumetric water pump.
Background technique
Directly using natural sea-water or fresh water proxy mineral oil as the water hydrostatic transmission of hydraulic system working media, with tradition
The hydraulic technology that working media is made with mineral oil or fire resistant liquid compare, have it is pollution-free, compatible with environment and product；Non-ignitable,
Without fire hazard；Without mineral oil, energy saving；System is simple；Outstanding advantages of reliable operation.It is most reason generally acknowledged in the world
" green " technology, safe practice and the power-saving technology thought have very wide application prospect, are one of current hydraulic technique
Highly important developing direction.
Water Hydraulic Pump is " heart " in water hydraulic system and hydraulic devices.Current, though there are many volumetric water pumps both at home and abroad
Client is supplied, but because its contamination resistance is poor, structure bulky is complicated, the reasons such as price is more expensive, and functional reliability is low, it is difficult to meet
User demand.The present invention provides that a kind of structure is simple, and contamination resistance is strong, reliable operation, the lower novel positive displacement water of price
Pump, so as to meet well Vehicles Collected from Market there is an urgent need to.
Summary of the invention
The present invention is to provide a kind of point contact fully water lubricating axial multiple plunger volumetric water to solve above-mentioned deficiency
Pump.
Above-mentioned purpose of the invention is realized by technical solution below: a kind of point contact fully water lubricating axial multiple plunger
Volumetric water pump, it is characterised in that: including cylinder body and pump case, the cylinder body left end is connected with left end cap, sets on the right side of left end cap
There is left end cap O-ring, the cylinder body right end is equipped with cylinder body O-ring, and connect with pump case, and pump case right end is equipped with right end
It covers, right end cap O-ring is installed on right end cap outside, rubber and plastic combination is equipped on the inside of right end cap and rotates water seal；
The pump case is equipped with inner cavity, offers water inlet in the cavity wall of inner cavity, main shaft, main shaft both ends are equipped in the inner cavity
Main shaft left bearing and main shaft right bearing are installed, main shaft left bearing and main shaft right bearing are respectively supported at cylinder center and pump case
Right end cap center, and main shaft right end passes through right end cap and rubber and plastic combination rotation water seal；
Thrust swash plate is equipped in the middle part of the main shaft, thrust swash plate two sides are separately installed with left thrust bearing and right thrust bearing；
It is evenly equipped with the odd number cylinder holes parallel with cylinder body axis on the same circumference of cylinder body right end face, is mounted in cylinder holes
Plunger, plunger right end have been connected through a screw thread plunger ball, the discharge van communicated with plunger are equipped on the cylinder body of plunger base
And valve base is extruded, the cylinder body left side for extruding valve base periphery, which is equipped with, extrudes valve base O-ring, extrudes valve base connection and sets
The water chamber at 1 left end center of cylinder body is set, water chamber connects the water outlet on left end cap；
The plunger head is equipped with inlet valve, is equipped with partition in the middle part of plunger, partition and inlet valve, cylinder holes are equipped between bottom
Plunger retracting spring；The plunger retracting spring forces plunger ball to be pressed on the left thrust being close to thrust swash plate by partition
On the toroidal race of bearing, the thrust bearing on the right of thrust swash plate is close to the inner wall of pump case.
Further, the cylinder holes inner wall is inlayed by the plunger bushing of the engineering plastics production of carbon fibre enhancing, alternatively, directly
It connects and is molded the engineering plastic bed of material of one layer of carbon fiber enhancing securely in cylinder holes inner wall.
Further, the plunger is made of corrosion resistant alloy, and carries out cure process to its surface, or to plunger surface
Spray layers ceramics or hard alloy make engineering plastics plunger bushing and case-hardened plunger constitute friction secondary.
Further, the plunger ball is made of enhancement engineering plastics, and the toroidal race surface with left thrust bearing 2
The antithesis friction for constituting point contact is secondary.
Further, the spool and valve seat of the inlet valve and discharge van are by the engineering plastics, the engineering ceramics or resistance to that enhance
Erosion alloy is made, the reasonable disposition according to different require to spool response speed；Meanwhile the difference based on revolving speed and flow,
Spool can select cone cell spool, plate spool or ball spool.
Further, the spool of the inlet valve uses plate spool or ball valve core, and the spool of discharge van uses ball valve core.
Further, the main shaft and thrust swash plate are integrally formed, alternatively, being linked as main shaft and thrust swash plate by flat key
One.
Further, the inlet valve and discharge van in cylinder body radially installed, it is axially mounted or one it is axially mounted and
Another radially installed.
Wherein, axial type, the space small suitable for radial dimension；
Another axial type, the space small suitable for radial dimension, structure are easy to accomplish；
Axial direction-radial (an axially mounted and another radially installed), is rationally utilized radial and axial size, so that pump
Size is in appropriate size；
Axial direction-radial expansion formula, discharge van is arranged on axial circumference at two circles or multi-turn, only slightly increases axial dimension
The significantly flow of elevator pump.
Water pumping process of the invention is as follows: when prime mover drives main shaft rotation, main shaft drives the rotation of thrust swash plate.It is placed in
Plunger and plunger ball are pressed to the seat ring of left thrust bearing by partition, force plunger by the retracting spring in plunger centre bore
Bulb is tightly attached on the seat ring annular surface of left thrust bearing always and slides, and cylinder body is always static motionless, therefore, forces
Plunger constantly moves back and forth in the intracorporal plunger bushing of cylinder.
When plunger moves right, the enclosed volume in plunger cavity increases, and pressure reduces.When the pressure reduction in plunger cavity
When to certain value, the force balance state of plate spool is broken in inlet valve, and plate spool is opened, water from pump case intracoelomic cavity into
Enter plunger cavity, this just forms water absorption course.
When plunger moves downward, the pressure in plunger cavity increases, and the plate spool of inlet valve is forced to be closed, discharge van
Ball valve core is opened, and the pressure water in plunger cavity is discharged from discharge outlet, here it is drainage procedures.
Main shaft often rotates a circle, and each plunger forms a water absorption course and a drainage procedure.For shown in FIG. 1 seven
Plunger pump, the total displacement of each rotation are equivalent to the summation of seven single plunger pump displacement.And the size of its discharge pressure,
It is unrelated with displacement depending on the size of load.
Compared with the prior art, the advantages of the invention are
1. structure of the invention is simple, manufacture is easy, and cost is relatively low.The present invention generally only has 12 workpieces, other are outsourcing
Standard component.And the another component for needing to process is relatively simple for structure, and machining accuracy is not very high, therefore manufacturing cost is lower.
2. replacing valve plate distribution structure using Flat valve structure, inlet valve and discharge van form flat valve, and spool uses
Ball valve or flat valve structure.It is highly suitable for pumping low viscosity (such as seawater, fresh water, HFA) liquid, and Kang sewage contaminates ability
By force；Reliable operation；It is high-efficient；It is simple and compact for structure.
3. all antithesis rub, pair is all made of enhancement engineering plastics and engineering structure ceramics or resistance to self-lubricating property
Lose alloy pairing.All bearings are all made of novel full-ceramic bearing or stainless steel bearing or self-lubricating plain bearing.Have
Good friction, abrasion and greasy property, are effectively guaranteed the functional reliability and service life of pump.
4. water sucking mouth is provided in pump case, the inlet valve in plunger centre bore absorbs water from pump case inner cavity, then through being mounted in column
The discharge van for filling in bottom is drained to water outlet.Make antithesis friction all in pump is secondary can be well by continuous flowing water stream
Cooling, effectively guarantee that its temperature rise will not be too high, greatly improve its abrasion resistance, working life increase.
5. in the right end cap centre bore of transmission shaft extension end, can working environment according to the present invention, install one respectively
Or two rubber and plastic combinations rotate water seal (when working under atmospheric environment) or mechanical seal (when underwater operation).This kind of sealing device
Structure it is simple, reliable operation.And can make present invention pump that can both work under the atmospheric environment of any height above sea level, it can also
To be submerged in the underwater operation of any depth.
6. the pump housing of same dimensions is become the speed of mainshaft or plunger number or swashplate angle by Yi, can be obtained
Different output flows.In addition it can also become the diameter of plunger by Yi and become the flow of pump and the operating pressure of permission come Yi.From
And meet the different demands of user.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of first embodiment of the invention.
Fig. 2 is the structural schematic diagram of second embodiment of the invention.
Fig. 3 is the structural schematic diagram of third embodiment of the invention.
Fig. 4 is the structural schematic diagram of fourth embodiment of the invention.
In attached drawing: 1- cylinder body, the left thrust bearing of 2-, 3- thrust swash plate, the right thrust bearing of 4-, 5- pump case, 6- right end cap O
Type circle, the combination rotation water seal of 7- rubber and plastic, 8- main shaft, 9- right end cap, 10- main shaft right bearing, 11- plunger ball, 12- plunger, 13-
Inlet valve, 14- main shaft left bearing, 15- cylinder body O-ring, 16- partition, 17- plunger bushing O-ring, 18- plunger retracting spring, 19-
Plunger bushing, 20- discharge van, 21- extrusion valve base, 22- extrusion valve base O-ring, 23- left end cap O-ring, 24- left end cap,
The inner cavity 25-, 26- water inlet, 27- cylinder holes, 28- water outlet.
Specific embodiment
The present invention is described in further detail below with reference to embodiment.
As shown in Figure 1, a kind of point contact fully water lubricating axial multiple plunger volumetric water pump, it is characterised in that: including cylinder body 1
With pump case 5,1 left end of cylinder body is connected with left end cap 24, is equipped with left end cap O-ring 23, the cylinder body 1 on the right side of left end cap 24
Right end is equipped with cylinder body O-ring 15, and connect with pump case 5, and 5 right end of pump case is equipped with right end cap 9, upper peace on the outside of right end cap 9
Equipped with right end cap O-ring 6, rubber and plastic combination rotation water seal 7 is equipped on the inside of right end cap 9；
The pump case 5 is equipped with inner cavity 25, offers water inlet 26 in the cavity wall of inner cavity 25, is equipped with main shaft in the inner cavity 25
8,8 both ends of main shaft are equipped with main shaft left bearing 14 and main shaft right bearing 10, and main shaft left bearing 14 and main shaft right bearing 10 prop up respectively
Support is at 9 center of 1 center of cylinder body and pump case right end cap, and 8 right end of main shaft passes through right end cap 9 and rubber and plastic combination rotation water seal 7；
Thrust swash plate 3 is equipped in the middle part of the main shaft 8,3 two sides of thrust swash plate are separately installed with left thrust bearing 2 and right thrust bearing
4；
It is evenly equipped with the odd number cylinder holes 27 parallel with 1 axis of cylinder body on the same circumference of 1 right end face of cylinder body, in cylinder holes 27
Plunger 12 is installed, 12 right end of plunger has been connected through a screw thread plunger ball 11, is equipped on the cylinder body 1 of 12 bottom of plunger and column
The discharge van 20 and extrude valve base 21 that plug 12 communicates, the cylinder body left side for extruding 21 periphery of valve base, which is equipped with, extrudes valve base
O-ring 22 extrudes valve base 21 and is connected to the water chamber 28 that 1 left end center of cylinder body is arranged in, and water chamber 28 connects on left end cap 24
Water outlet 28；
Inlet valve 13 is installed at the top of the plunger 12, is equipped with partition 16, partition 16 and inlet valve 13, cylinder holes 27 in the middle part of plunger 12
Plunger retracting spring 18 is equipped between bottom；The plunger retracting spring 18 forces plunger ball 11 to be pressed on by partition 16
On the toroidal race for the left thrust bearing 2 being close to thrust swash plate 3, the thrust bearing 4 on 3 the right of thrust swash plate is close to pump case 5
Inner wall.
Further, 27 inner wall of cylinder holes is inlayed by the plunger bushing 19 of the engineering plastics production of carbon fibre enhancing, or
Person is directly molded the engineering plastic bed of material of one layer of carbon fiber enhancing securely in cylinder holes inner wall.
Further, the plunger 12 is made of corrosion resistant alloy, and carries out cure process to its surface, or to plunger 12
Surface spray layers ceramics or hard alloy make engineering plastics plunger bushing 19 and case-hardened plunger 12 constitute friction secondary.
Further, the plunger ball is made of enhancement engineering plastics, and the toroidal race surface with left thrust bearing 2
The antithesis friction for constituting point contact is secondary.
Further, the spool and valve seat of the inlet valve 13 and discharge van 20 are by the engineering plastics, the engineering ceramics that enhance
Or corrosion resistant alloy is made, the reasonable disposition according to different require to spool response speed；Meanwhile not based on revolving speed and flow
Together, spool can select cone cell spool, plate spool or ball spool.
Further, the spool of the inlet valve uses plate spool or ball valve core, and the spool of discharge van uses ball valve core.
Further, the main shaft 8 is integrally formed with thrust swash plate 3, alternatively, passing through flat key for main shaft 8 and thrust swash plate 3
It is linked together.
Further, the inlet valve 13 and discharge van 20 radially installed, an axially mounted or axial direction in cylinder body 1
It installs and another radially installed.
Wherein, as shown in Figure 1, axial type, it is characterised in that: the space small suitable for radial dimension；
As shown in Fig. 2, another axial type, it is characterised in that: the space small suitable for radial dimension, structure are easy to accomplish；
As shown in figure 3, axial direction-radial (an axially mounted and another radially installed), it is characterised in that: radial direction is rationally utilized
With axial size so that the size of pump is in appropriate size；
As shown in figure 4, axial direction-radial expansion formula, it is characterised in that: discharge van 5 encloses on axial circumference at two or multi-turn is arranged,
Only slightly increase axial dimension can significantly elevator pump flow.
Water pumping process of the invention is as follows: when prime mover drives main shaft 8 to rotate, main shaft 8 drives thrust swash plate 3 to rotate.
Plunger 12 and plunger ball 11 are pressed to left thrust bearing 2 by partition 16 by the retracting spring 18 being placed in 12 centre bore of plunger
Seat ring, force plunger ball to be tightly attached on the seat ring annular surface of left thrust bearing 2 always and slide, and cylinder body 1 is quiet always
It is only motionless, therefore, plunger 12 is forced constantly to move back and forth in the plunger bushing 19 in cylinder body 1.
When plunger 12 moves right, the enclosed volume in plunger cavity increases, and pressure reduces.When the pressure drop in plunger cavity
When as low as certain value, the force balance state of plate spool 13 is broken in inlet valve, and plate spool 13 is opened, and water is from pump case
5 inner cavities enter plunger cavity, this just forms water absorption course.
When plunger 12 moves downward, the pressure in plunger cavity increases, and the plate spool 13 of inlet valve is forced to be closed, and extrudes
The ball valve core 20 of valve is opened, and the pressure water in plunger cavity is discharged from discharge outlet, here it is drainage procedures.
Main shaft 8 often rotates a circle, and each plunger forms a water absorption course and a drainage procedure.For shown in FIG. 1
Seven plunger pumps, the total displacement of each rotation are equivalent to the summation of seven single plunger pump displacement.And its discharge pressure is big
It is small, it is unrelated with displacement depending on the size of load.
The above description is only an embodiment of the present invention, is not intended to limit the scope of the invention, all to utilize this hair
Equivalent structure or equivalent flow shift made by bright specification and embodiment content, it is relevant to be applied directly or indirectly in other
Technical field is included within the scope of the present invention.
Claims (8)
1. a kind of point contact fully water lubricating axial multiple plunger volumetric water pump, it is characterised in that: including cylinder body (1) and pump case
(5), cylinder body (1) left end is connected with left end cap (24), is equipped with left end cap O-ring (23) on the right side of left end cap (24), the cylinder
Body (1) right end is equipped with cylinder body O-ring (15), and connect with pump case (5), and pump case (5) right end is equipped with right end cap (9), right
It is equipped with right end cap O-ring (6) on the outside of end cap (9), rubber and plastic combination rotation water seal (7) is equipped on the inside of right end cap (9)；
The pump case (5) is equipped with inner cavity (25), offers water inlet (26) in the cavity wall of inner cavity (25), in the inner cavity (25)
It is equipped with main shaft (8), main shaft (8) both ends are equipped with main shaft left bearing (14) and main shaft right bearing (10), main shaft left bearing (14)
It is respectively supported at cylinder body (1) center and pump case right end cap (9) center with main shaft right bearing (10), and main shaft (8) right end passes through
Right end cap (9) and rubber and plastic combination rotation water seal (7)；
Thrust swash plate (3) are equipped in the middle part of the main shaft (8), thrust swash plate (3) two sides are separately installed with left thrust bearing (2) and the right side
Thrust bearing (4)；
The odd number cylinder holes (27) parallel with cylinder body (1) axis, cylinder holes are evenly equipped on the same circumference of cylinder body (1) right end face
(27) it is mounted in plunger (12), plunger (12) right end has been connected through a screw thread plunger ball (11), plunger (12) bottom
The discharge van (20) communicated with plunger (12) is installed on cylinder body (1) and extrudes valve base (21), extrudes valve base (21) periphery
Cylinder body (1) left side be equipped with extrude valve base O-ring (22), extrude valve base (21) connection be arranged in cylinder body (1) left end
The water chamber (28) at center, water chamber (28) connect the water outlet (28) on left end cap (24)；
It is equipped with inlet valve (13) at the top of the plunger (12), is equipped with partition (16) in the middle part of plunger (12), partition (16) and sucking
Plunger retracting spring (18) are equipped between valve (13), cylinder holes (27) bottom；The plunger retracting spring (18) passes through partition
(16) plunger ball (11) is forced to be pressed on the toroidal race for the left thrust bearing (2) being close to thrust swash plate (3), thrust is oblique
Thrust bearing (4) on the right of disk (3) is close to the inner wall of pump case (5).
2. a kind of point contact fully water lubricating axial multiple plunger volumetric water pump according to claim 1, it is characterised in that: institute
Cylinder holes (27) inner wall is stated to inlay by the plunger bushing (19) of the engineering plastics production of carbon fibre enhancing, alternatively, directly in cylinder holes
Wall is molded the engineering plastic bed of material of one layer of carbon fiber enhancing securely.
3. a kind of point contact fully water lubricating axial multiple plunger volumetric water pump according to claim 1, it is characterised in that: institute
It states plunger (12) to be made of corrosion resistant alloy, and cure process is carried out to its surface, or make pottery to plunger (12) surface spray layers
Porcelain or hard alloy make engineering plastics plunger bushing (19) and case-hardened plunger (12) to constitute friction secondary.
4. a kind of point contact fully water lubricating axial multiple plunger volumetric water pump according to claim 1, it is characterised in that: institute
It states plunger ball to be made of enhancement engineering plastics, and constitutes the antithesis of point contact with the toroidal race surface of left thrust bearing (2)
Friction is secondary.
5. a kind of point contact fully water lubricating axial multiple plunger volumetric water pump according to claim 1, it is characterised in that: institute
The spool and valve seat for stating inlet valve (13) and discharge van (20) are made of the engineering plastics, engineering ceramics or corrosion resistant alloy enhancing,
The reasonable disposition according to different require to spool response speed；Meanwhile the difference based on revolving speed and flow, spool can be selected
Cone cell spool, plate spool or ball spool.
6. a kind of point contact fully water lubricating axial multiple plunger volumetric water pump according to claim 1, it is characterised in that: institute
The spool of inlet valve is stated using plate spool or ball valve core, the spool of discharge van uses ball valve core.
7. a kind of point contact fully water lubricating axial multiple plunger volumetric water pump according to claim 1, it is characterised in that: institute
It states main shaft (8) and thrust swash plate (3) to be integrally formed, alternatively, being linked together main shaft (8) and thrust swash plate (3) by flat key.
8. a kind of point contact fully water lubricating axial multiple plunger volumetric water pump according to claim 1, it is characterised in that: institute
State inlet valve (13) and discharge van (20) radially installed, an axially mounted or axially mounted and another radial direction in cylinder body (1)
Installation；
Wherein, axial type, the space small suitable for radial dimension；
Another axial type, the space small suitable for radial dimension, structure are easy to accomplish；
Axial direction-radial (an axially mounted and another radially installed), is rationally utilized radial and axial size, so that pump
Size is in appropriate size；
Axial direction-radial expansion formula, discharge van is arranged on axial circumference at two circles or multi-turn, only slightly increases axial dimension
The significantly flow of elevator pump.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811597194.2A CN109538433A (en) | 2018-12-26 | 2018-12-26 | A kind of point contact fully water lubricating axial multiple plunger volumetric water pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811597194.2A CN109538433A (en) | 2018-12-26 | 2018-12-26 | A kind of point contact fully water lubricating axial multiple plunger volumetric water pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109538433A true CN109538433A (en) | 2019-03-29 |
Family
ID=65858282
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811597194.2A Pending CN109538433A (en) | 2018-12-26 | 2018-12-26 | A kind of point contact fully water lubricating axial multiple plunger volumetric water pump |
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| CN (1) | CN109538433A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112389560A (en) * | 2020-12-10 | 2021-02-23 | 杭州柯雷沃科技有限公司 | Fixed goods mechanism of stair climbing robot with lubricating function |
| CN114593030A (en) * | 2022-03-30 | 2022-06-07 | 华中科技大学 | Miniature high-pressure high-volume-efficiency plunger pump |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1218874A (en) * | 1997-11-28 | 1999-06-09 | 华中理工大学 | Novel axial multiple plunger volumetric water pump |
| CN101012817A (en) * | 2007-02-01 | 2007-08-08 | 华中科技大学 | Plunger piston slippery boots assembly |
| JP2010053854A (en) * | 2008-07-30 | 2010-03-11 | Nachi Fujikoshi Corp | Variable displacement piston pump |
| CN103925183A (en) * | 2014-04-22 | 2014-07-16 | 北京嘉禾汇拓石油技术有限公司 | Axial plunger pump for mud pulse generator |
| CN104612956A (en) * | 2014-12-11 | 2015-05-13 | 无锡市华科力士水液压有限公司 | Variable axial plunger type water pump with full-water lubrication |
| CN205445925U (en) * | 2016-03-04 | 2016-08-10 | 沈阳化工大学 | High -speed variable axial plunger pump |
-
2018
- 2018-12-26 CN CN201811597194.2A patent/CN109538433A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1218874A (en) * | 1997-11-28 | 1999-06-09 | 华中理工大学 | Novel axial multiple plunger volumetric water pump |
| CN101012817A (en) * | 2007-02-01 | 2007-08-08 | 华中科技大学 | Plunger piston slippery boots assembly |
| JP2010053854A (en) * | 2008-07-30 | 2010-03-11 | Nachi Fujikoshi Corp | Variable displacement piston pump |
| CN103925183A (en) * | 2014-04-22 | 2014-07-16 | 北京嘉禾汇拓石油技术有限公司 | Axial plunger pump for mud pulse generator |
| CN104612956A (en) * | 2014-12-11 | 2015-05-13 | 无锡市华科力士水液压有限公司 | Variable axial plunger type water pump with full-water lubrication |
| CN205445925U (en) * | 2016-03-04 | 2016-08-10 | 沈阳化工大学 | High -speed variable axial plunger pump |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112389560A (en) * | 2020-12-10 | 2021-02-23 | 杭州柯雷沃科技有限公司 | Fixed goods mechanism of stair climbing robot with lubricating function |
| CN114593030A (en) * | 2022-03-30 | 2022-06-07 | 华中科技大学 | Miniature high-pressure high-volume-efficiency plunger pump |
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