CN106368921B - A kind of ultrahigh pressure axial plunger pump - Google Patents
A kind of ultrahigh pressure axial plunger pump Download PDFInfo
- Publication number
- CN106368921B CN106368921B CN201610903713.8A CN201610903713A CN106368921B CN 106368921 B CN106368921 B CN 106368921B CN 201610903713 A CN201610903713 A CN 201610903713A CN 106368921 B CN106368921 B CN 106368921B
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- CN
- China
- Prior art keywords
- rear cover
- valve plate
- oilhole
- oil
- cylinder bore
- 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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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
- 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
-
- 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
- F04B1/122—Details or component parts, e.g. valves, sealings or lubrication means
-
- 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
- F04B53/162—Adaptations of cylinders
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 discloses a kind of ultrahigh pressure axial plunger pump, including transmission shaft, swash plate, plunger, swash plate are sheathed on transmission shaft, and one end of plunger is installed on swash plate, there is an inclination angle between swash plate and drive shaft axis；Further include: cylinder body is equipped with the multiple cylinder bores being uniform staggered with around cylinder body axis, and the other end of plunger is installed in cylinder bore；Cylinder body, valve plate, rear cover sequentially fit closely, and cylinder body, valve plate are sheathed on transmission shaft, and valve plate is covered with after equipped with alternatively distributed interior oilhole, outer oilhole；Cylinder bore is connected to form internal oil passages with interior oilhole, and cylinder bore is connected to form external oil circuit with outer oilhole, and for connecting driving device, the other end of transmission shaft is installed on the front of the interior oil circuit in rear cover for one end of transmission shaft.Implementation of the invention makes the pressure change for exporting fluid, the pressure rating of 1 times of pump is improved, to reach super pressure purpose.
Description
Technical field
The present invention relates to a kind of axial plunger pumps, more particularly to a kind of ultrahigh-pressure hydraulic axial plunger pump.
Background technique
Hydraulic axial plunger pump/motor mainly by transmission shaft, shell, swash plate, plunger, cylinder body, spring, bearing, valve plate,
The buildings such as rear cover composition.Plunger is circumferentially evenly distributed in cylinder body, there is a tilt angle gamma between swash plate and cylinder body axis, and plunger presses
On swash plate, valve plate is maintained static, and transmission shaft is through swash plate and cylinder body and both ends bearing support is on shell, and cylinder body passes through
Spline is coupled with transmission shaft.When prime mover drives cylinder body rotation by transmission shaft, due to the effect of swash plate, force plunger in cylinder
It moves reciprocatingly in vivo, and oil suction and pressure oil is carried out by the oil sucking window of valve plate and pressure oil window.
Axial plunger pump/motor because of reasons such as structure, materials, is hindering mentioning for plunger pump pressure in actual work at present
It rises, long-term high pressure can also damage its service life.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of ultrahigh pressure axial plunger pumps, using external oil circuit and interior oil
The mode that road combines increases the oil pressure of rear cover oil outlet.
The present invention solves its technical problem and adopts the following technical solutions to realize.
The present invention discloses a kind of ultrahigh pressure axial plunger pump, including transmission shaft, swash plate, plunger, swash plate are sheathed on transmission shaft
On, one end of plunger is installed on swash plate, there is an inclination angle between swash plate and drive shaft axis；Further include: cylinder body is equipped with around cylinder
Multiple cylinder bores that body axis is uniform staggered with, the other end of plunger are installed in cylinder bore；Cylinder body, valve plate, rear cover are sequentially tight
Closely connected conjunction, cylinder body, valve plate are sheathed on transmission shaft, and valve plate is covered with after equipped with alternatively distributed interior oilhole, outer oilhole；Cylinder
Body opening is connected to form internal oil passages with interior oilhole, and cylinder bore is connected to form external oil circuit with outer oilhole, and one end of transmission shaft is used for
Driving device is connected, the other end of transmission shaft is installed on the front of the interior oil circuit in rear cover.
The present invention solves what its technical problem can also be realized using following technical measures.
The cylinder bore of above-mentioned ultrahigh pressure axial plunger pump, cylinder body axis two sides is symmetrical or mal-distribution；Cylinder body
Hole is interspersed on the circumference of the different radii centered on cylinder body axis.
Above-mentioned ultrahigh pressure axial plunger pump, the outer oilhole are the outer fuel feed hole of valve plate, valve plate outer oil outlet, rear cover
The outer oil outlet of outer fuel feed hole, rear cover, the interior oilhole be fuel feed hole in valve plate, oil outlet in valve plate, fuel feed hole in rear cover,
Oil outlet in rear cover；The external oil circuit is external oil inlet oil circuit, external fuel-displaced oil circuit.
Above-mentioned ultrahigh pressure axial plunger pump, the external oil inlet oil circuit are communicated with the oil inlet of rear cover, and the outside goes out
Oil circuit is communicated with the oil outlet of rear cover.
Above-mentioned ultrahigh pressure axial plunger pump, the outer fuel feed hole of cylinder bore, the valve plate, the outer fuel feed hole of the rear cover communicate
Form the external oil inlet oil circuit；The outer oil outlet of cylinder bore, the valve plate, the outer oil outlet of the rear cover communicate to be formed outside described
The fuel-displaced oil circuit in portion；The cylinder body rotates an angle, fuel feed hole in a cylinder bore, the valve plate, fuel feed hole, institute in the rear cover
State that oil outlet in rear cover, oil outlet, another cylinder bore communicate to form the internal oil passages in the valve plate.
Above-mentioned ultrahigh pressure axial plunger pump, the cylinder bore bottom by waist through hole respectively with the interior oilhole, institute
State outer oilhole connection.
Above-mentioned ultrahigh pressure axial plunger pump, the interior oilhole, the outer oilhole are arc-shaped hole.
Above-mentioned ultrahigh pressure axial plunger pump, it is U-shaped or arc that the internal oil channel in the rear cover is located in the internal oil passages
Shape.
Above-mentioned ultrahigh pressure axial plunger pump, which is characterized in that the rear cover one side is equipped with boss, and the rear cover passes through
The boss is fitted closely with the valve plate.
By above-mentioned technical proposal, the present invention at least have following advantages and the utility model has the advantages that
The present invention forms internal oil passages, outside using the cylinder bore being uniform staggered with and alternatively distributed interior oilhole, outer oilhole
The utilization of oil circuit, that is, double oil circuits is the pressure change to form the series connection of oil circuit and then make to export fluid, 1 times for improving pump in principle
Pressure rating, to reach the super pressure purpose of 63MP or more.
In the case where increasing whole basic structure of the pressure without changing pump, keep overall structure more compact.Pressure
Increasing can also be such that the working range of pump greatly increases, and the power-weight ratio of pump also greatly increases.
The above description is only an overview of the technical scheme of the present invention, in order to better understand the technical means of the present invention,
And it can be implemented in accordance with the contents of the specification, and in order to allow above and other objects, features and advantages of the invention can
It is clearer and more comprehensible, it is special below to lift preferred embodiment, and cooperate attached drawing, detailed description are as follows.
Detailed description of the invention
Fig. 1 is ultrahigh pressure axial plunger pump cross-sectional view of the present invention.
Fig. 2 is rear cover stereoscopic schematic diagram of the present invention.
Fig. 3 is cylinder body stereoscopic schematic diagram of the present invention.
Fig. 4 is cylinder body stereoscopic schematic diagram of the present invention.
Fig. 5 is another embodiment of the present invention cylinder body cross section structure schematic diagram.
Fig. 6 is the sectional view of the line A-A of Fig. 5.
[main element symbol description]
1: transmission shaft 2: swash plate
3: plunger 4: cylinder body
5: valve plate 6: rear cover
Specific embodiment
It is of the invention to reach the technical means and efficacy that predetermined goal of the invention is taken further to illustrate, below in conjunction with
Attached drawing and preferred embodiment, to a kind of specific embodiment of ultrahigh pressure axial plunger pump proposed according to the present invention, feature and
Its effect, detailed description is as follows.
It please refers to Fig.1 to Fig.3, the present invention discloses a kind of ultrahigh pressure axial plunger pump, including transmission shaft 1, swash plate 2, plunger
3, cylinder body 4, valve plate 5, rear cover 6.
Swash plate 2 is sheathed on transmission shaft 1.One end of plunger 3 is installed on swash plate 2.Have one between swash plate 2 and drive shaft axis
Inclination angle.Oil inlet side and fuel-displaced side are formed in drive shaft axis two sides.As shown in Figure 1, drive shaft axis top is oil inlet side, transmission
Axis axis lower part is fuel-displaced side.When cylinder body 4 clockwise or counterclockwise when, oil inlet side and fuel-displaced side exchange.Plunger 3 it is another
End is installed in cylinder bore 41.Cylinder body 4, valve plate 5, rear cover 6 sequentially fit closely.Cylinder body 4, valve plate 5 are sheathed on transmission shaft 1
On.One end of transmission shaft 1 is for connecting driving device, before the other end of transmission shaft 1 is installed on the interior oil circuit 65 in rear cover 6
Portion.
As shown in Figure 3, Figure 4, cylinder body 4 is equipped with the multiple cylinder bores 41 being uniform staggered with around cylinder body axis.That is,
Cylinder bore 41 is staggeredly uniformly distributed on the circumference of the different radii centered on cylinder body axis.
As shown in figure 1, figure 3 and figure 4, in one embodiment, 41 mal-distribution of cylinder bore of cylinder body axis two sides.This hair
It is bright to be respectively equipped with the cylinder bore 41 positioned at oil inlet side and fuel-displaced side in cylinder body axis two sides.Cylinder bore 41 is located at cylinder body axis proximal end
It is remote cylinder bore 412 positioned at cylinder body axis distal end for nearly cylinder bore 411.It is described below with nearly cylinder bore 411, remote cylinder shown in Fig. 1
For 412 position of body opening.
In oil inlet side, one end of plunger 3 is installed on 2 flare face of swash plate (i.e. the top of swash plate 2 shown in Fig. 1).Plunger 3 it is another
One end is located in remote cylinder bore 412.In fuel-displaced side, one end of plunger 3 is installed on swash plate 2 introversion face (i.e. swash plate 2 shown in Fig. 1
Lower part), the other end of plunger 3 is located in nearly cylinder bore 411.
As shown in Figure 1 and Figure 2, in order to increase the oil pressure of oil outlet 64, the present invention is mutually tied using external oil circuit with internal oil passages
The mode of conjunction.Valve plate 5 and rear cover 6, which are equipped with, is alternately distributed arc-shaped interior oilhole, outer oilhole.41 bottom of cylinder bore passes through waist
Shape through-hole is connected to form internal oil passages with interior oilhole, and 41 bottom of cylinder bore is connected to form external oil with outer oilhole by waist through hole
Road.External oil circuit is equipped with external oil inlet oil circuit, external fuel-displaced oil circuit, wherein 63 phase of oil inlet of external oil inlet oil circuit and rear cover 6
Logical, external fuel-displaced oil circuit is communicated with the oil outlet 64 of rear cover 6.
Outer oilhole is the outer oil outlet 521 of fuel feed hole 511, valve plate outside valve plate, fuel feed hole 611, rear cover are outgoing outside rear cover
Oilhole 621.Interior oilhole is fuel feed hole 512 in valve plate, oil outlet 522 in valve plate, fuel feed hole 612 in rear cover, goes out in rear cover
Oilhole 622.The outer fuel feed hole 511 of remote cylinder bore 412, valve plate, the outer fuel feed hole 611 of rear cover communicate to form external oil inlet oil circuit.Closely
The outer oil outlet 521 of cylinder bore 411, valve plate, the outer oil outlet 621 of rear cover communicate to form external fuel-displaced oil circuit.Cylinder body 4 rotates one jiao
Degree, it is fuel feed hole 512 in nearly cylinder bore 411, valve plate, fuel feed hole 612 in rear cover, oil outlet 622 in rear cover, fuel-displaced in valve plate
Hole 522, remote cylinder bore 412 communicate to form internal oil passages.Being located at the internal oil channel 65 in rear cover 6 in internal oil passages is U-shaped or arc.
So circulation makes external oil circuit, internal oil passages connect and then makes the pressure change for exporting fluid, improves 1 times of pump
Pressure rating, to reach super pressure purpose.
The side of valve plate 5 and the side of rear cover 6 fit closely, and in order to reduce liquid leakage, faying face need to carry out essence
Processing technology.To reduce working (finishing) area and save the cost, boss 61 is equipped in the one side of rear cover 6.Rear cover 6 passes through the boss 60
It is fitted closely with valve plate 5.
In another embodiment, the cylinder bore 41 of cylinder body axis two sides is symmetrical, and cylinder bore 41 is staggeredly uniformly distributed in
On the circumference of different radii centered on cylinder body axis.
As shown in Figure 5, Figure 6, nearly cylinder bore 411 is nearly cylinder bore 411, remote cylinder bore 412 along Boring mill line symmetry
It is remote cylinder bore 412 along Boring mill line symmetry.Outer oil circuit, interior asphalt principle and upper embodiment phase are formed in the present embodiment
Together, it is not repeating herein.
The above described is only a preferred embodiment of the present invention, be not intended to limit the present invention in any form, though
So the present invention has been disclosed as a preferred embodiment, and however, it is not intended to limit the invention, any technology people for being familiar with this profession
Member, without departing from the scope of the present invention, when the method and technique content using the disclosure above make it is a little more
Equivalent embodiment that is dynamic or being modified to equivalent variations, but anything that does not depart from the technical scheme of the invention content, according to the present invention
Technical spirit any simple modification, equivalent change and modification to the above embodiments, still fall within technical solution of the present invention
In the range of.
Claims (6)
1. a kind of ultrahigh pressure axial plunger pump, including transmission shaft, swash plate, plunger, swash plate are sheathed on transmission shaft, one end of plunger
It is installed on swash plate, there is an inclination angle between swash plate and drive shaft axis；It is characterized by further comprising:
Cylinder body is equipped with the multiple cylinder bores being uniform staggered with around cylinder body axis, and the other end of plunger is installed in cylinder bore；
Cylinder body, valve plate, rear cover sequentially fit closely, and cylinder body, valve plate are sheathed on transmission shaft, and valve plate is covered with after and is equipped with
Alternatively distributed interior oilhole, outer oilhole；
The outer oilhole is the outer fuel feed hole of valve plate, the outer oil outlet of valve plate, the outer fuel feed hole of rear cover, the outer oil outlet of rear cover；It is described
Interior oilhole is fuel feed hole in valve plate, oil outlet in valve plate, fuel feed hole in rear cover, oil outlet in rear cover；Cylinder bore with it is described
Interior oilhole is connected to form internal oil passages, and cylinder bore is connected to form external oil circuit with the outer oilhole, and one end of transmission shaft is for connecting
Driving device is connect, the other end of transmission shaft is installed on the front of the interior oil circuit in rear cover；
The external oil circuit is external oil inlet oil circuit, external fuel-displaced oil circuit；The oil inlet phase of external the oil inlet oil circuit and rear cover
Logical, the fuel-displaced oil circuit in outside is communicated with the oil outlet of rear cover；The outer fuel feed hole of cylinder bore, the valve plate, the rear cover it is outer into
Oilhole communicates to form the external oil inlet oil circuit；The outer oil outlet of cylinder bore, the valve plate, the outer oil outlet of the rear cover communicate shape
At the fuel-displaced oil circuit in the outside；
The cylinder body rotates an angle, fuel feed hole in a cylinder bore, the valve plate, fuel feed hole, the rear cover in the rear cover
Oil outlet, another cylinder bore communicate to form the internal oil passages in interior oil outlet, the valve plate.
2. ultrahigh pressure axial plunger pump according to claim 1, which is characterized in that the cylinder bore of cylinder body axis two sides is symmetrical
Distribution or mal-distribution；
Cylinder bore is interspersed on the circumference of the different radii centered on cylinder body axis.
3. ultrahigh pressure axial plunger pump according to claim 1, which is characterized in that the cylinder bore bottom is logical by kidney-shaped
Hole is connected to the interior oilhole, the outer oilhole respectively.
4. ultrahigh pressure axial plunger pump according to claim 1, which is characterized in that the interior oilhole, the outer oilhole are
Arc-shaped hole.
5. ultrahigh pressure axial plunger pump according to claim 1, which is characterized in that in the internal oil passages be located at it is described after
Interior oil circuit in lid is U-shaped or arc.
6. ultrahigh pressure axial plunger pump according to claim 1-5, which is characterized in that the rear cover one side is set
There is boss, the rear cover is fitted closely by the boss and the valve plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610903713.8A CN106368921B (en) | 2016-10-17 | 2016-10-17 | A kind of ultrahigh pressure axial plunger pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610903713.8A CN106368921B (en) | 2016-10-17 | 2016-10-17 | A kind of ultrahigh pressure axial plunger pump |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106368921A CN106368921A (en) | 2017-02-01 |
| CN106368921B true CN106368921B (en) | 2019-05-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610903713.8A Active CN106368921B (en) | 2016-10-17 | 2016-10-17 | A kind of ultrahigh pressure axial plunger pump |
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| Country | Link |
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| CN (1) | CN106368921B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106837728A (en) * | 2017-02-21 | 2017-06-13 | 哈尔滨工业大学 | A kind of multi-row-type inclined shaft axial plunger pump |
| CN108561298B (en) * | 2018-06-05 | 2024-05-07 | 昆明理工大学 | High-pressure dual-cavity multipurpose water delivery mechanism |
| CN114658653B (en) * | 2022-03-14 | 2023-04-14 | 西安交通大学 | Liquid-spraying lubricating structure of star wheel-screw meshing pair of single-screw compressor and design method |
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|---|---|---|---|---|
| DE3413867A1 (en) * | 1983-04-13 | 1984-10-18 | Linde Ag, 6200 Wiesbaden | Axial piston pump for two delivery streams |
| CN2411372Y (en) * | 1999-10-22 | 2000-12-20 | 李世六 | Axial multigroup piston type hydraulic variable desplacement pump or variable speed motor |
| CN102619715A (en) * | 2012-04-26 | 2012-08-01 | 安徽理工大学 | Balanced high-flow axial plunger pump |
| DE102011077253A1 (en) * | 2011-06-09 | 2012-12-13 | Robert Bosch Gmbh | Axial piston machine in swash plate design |
| CN103939312A (en) * | 2014-04-25 | 2014-07-23 | 福州大学 | Balanced type double-row large-displacement axial plunger pump |
| CN206092304U (en) * | 2016-10-17 | 2017-04-12 | 北京华德液压工业集团有限责任公司 | Ultrahigh pressure axial plunger pump |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10347085B3 (en) * | 2003-10-10 | 2005-06-16 | Brueninghaus Hydromatik Gmbh | Hydrostatic piston machine with two hydraulic circuits |
-
2016
- 2016-10-17 CN CN201610903713.8A patent/CN106368921B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3413867A1 (en) * | 1983-04-13 | 1984-10-18 | Linde Ag, 6200 Wiesbaden | Axial piston pump for two delivery streams |
| CN2411372Y (en) * | 1999-10-22 | 2000-12-20 | 李世六 | Axial multigroup piston type hydraulic variable desplacement pump or variable speed motor |
| DE102011077253A1 (en) * | 2011-06-09 | 2012-12-13 | Robert Bosch Gmbh | Axial piston machine in swash plate design |
| CN102619715A (en) * | 2012-04-26 | 2012-08-01 | 安徽理工大学 | Balanced high-flow axial plunger pump |
| CN103939312A (en) * | 2014-04-25 | 2014-07-23 | 福州大学 | Balanced type double-row large-displacement axial plunger pump |
| CN206092304U (en) * | 2016-10-17 | 2017-04-12 | 北京华德液压工业集团有限责任公司 | Ultrahigh pressure axial plunger pump |
Non-Patent Citations (1)
| Title |
|---|
| 多排式轴向柱塞泵的关键技术研究及动态仿真;方建忠;《中国优秀硕士学位论文全文数据库 工程科技Ⅱ辑》;20071115(第05期);第C029-166页 |
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| CN106368921A (en) | 2017-02-01 |
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