CN110513261A - A kind of axial plunger pump of symmetric double valve plate - Google Patents
A kind of axial plunger pump of symmetric double valve plate Download PDFInfo
- Publication number
- CN110513261A CN110513261A CN201910834205.2A CN201910834205A CN110513261A CN 110513261 A CN110513261 A CN 110513261A CN 201910834205 A CN201910834205 A CN 201910834205A CN 110513261 A CN110513261 A CN 110513261A
- Authority
- CN
- China
- Prior art keywords
- plunger
- oil
- hole
- cylinder body
- swash 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.)
- Pending
Links
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
- F04B1/20—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 rotary cylinder block
-
- 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
- F04B1/20—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 rotary cylinder block
- F04B1/2014—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
- F04B17/00—Pumps characterised by combination with, or adaptation to, specific driving engines or motors
- F04B17/03—Pumps characterised by combination with, or adaptation to, specific driving engines or motors driven by electric motors
Abstract
The invention discloses a kind of axial plunger pump of symmetric double valve plate, enclosure interior is in symmetrical two swash plates in the both ends of the cylinder body；And the pressure oil side of the swash plate and the intake side of the swash plate are machined with oil-distribution port, the cylinder body is machined with equally distributed plunger through-hole around its axis；The both ends of the plunger through-hole are mounted on the plunger, and one end of the plunger is axially pierced by the plunger through-hole and connect with one end of the piston shoes, and the inside of the plunger and the piston shoes is machined with through-hole, form asphalt channel；The asphalt channel is connected to the plunger through-hole and the oil-distribution port respectively, and oil discharge outlet and inlet port are machined on the shell, and two oil-distribution ports are not connected to.Valve plate in the swash plate of axial plunger pump and traditional plunger pump is combined as a whole by the present invention, using the through-hole of plunger and piston shoes as asphalt channel, greatly improves the efficiency of axial plunger pump, while making the structure of axial plunger pump more compact.
Description
Technical field
The present invention relates to a kind of axial plunger pump, specifically a kind of axial plunger pump of symmetric double valve plate.
Background technique
Currently, plunger pump is an important device of hydraulic system, it relies on reciprocating motion of the plunger in cylinder body, makes
The volume of seal operation cavity changes to realize suction oil.Plunger pump, which is widely used in high pressure, big flow and flow, to be needed
The occasion to be adjusted.Plunger pump has the advantages that rated pressure height and flow are easy to adjust, but it is inadequate to equally exist structure
Compact, inefficient disadvantage.So the present invention is transformed by axial plunger pump in structure, a kind of efficiency is researched and developed
Higher, the overall compact axial plunger pump of structure.
Summary of the invention
According to technical problem set forth above, and provide a kind of axial plunger pump of symmetric double valve plate.The present invention is main
It is utilized and opens up through-hole on cylinder body and open up oil-distribution port on swash plate, realized using the asphalt channel on plunger and piston shoes
The suction oil from swash plate；Monosymmetric structure is used at the same time.Greatly improve the suction oil efficiency of axial plunger pump.
The technological means that the present invention uses is as follows:
A kind of axial plunger pump of symmetric double valve plate, including main shaft, cylinder body, swash plate, plunger and piston shoes, shell, backhaul
Disk, bearing (ball) cover and return plate pressing device, the enclosure interior are described oblique symmetrical two of the both ends of the cylinder body
Disk；And the pressure oil side of the swash plate and the intake side of the swash plate are machined with oil-distribution port, two oil-distribution ports do not connect
Logical, the cylinder body is machined with multiple equally distributed plunger through-holes around its axis；The both ends of the plunger through-hole are mounted on
The plunger, one end of the plunger are axially pierced by the plunger through-hole and connect with one end of the piston shoes, the plunger and
The inside of the piston shoes is machined with through-hole, forms asphalt channel；The asphalt channel respectively with the plunger through-hole and described
Oil-distribution port connection, and the oil extraction being connected to the oil-distribution port on the pressure oil side that the swash plate is arranged in is machined on the shell
Mouth and the inlet port being connected to the oil-distribution port on the intake side that the swash plate is arranged in.
The piston shoes are plane close to the one side of the swash plate, and rounded.
One end of main shaft penetrates in the shell and is connect with the cylinder body by spline, and the main shaft passes through the cylinder
Body, the both ends of the main shaft pass through fixed bearing (ball) cover rotation on the housing with the housing junction respectively
Connection；The swash plate central through hole for passing through the main shaft is equipped in the middle part of the swash plate；
Two return plates are separately positioned on the both ends of the cylinder body, and the return plate is disc structure, and its middle part
The return plate central through hole passed through for the main shaft is offered, is machined on the return plate for the piston shoes close to the plunger
The return plate through-hole that passes through of one end, the one end of the piston shoes far from the plunger and the return plate are close to the one of the swash plate
Side clamping；
Two return plate pressing devices are separately positioned on the both ends of the cylinder body, and the return plate pressing device
Middle part offers the pressing device central through hole passed through for the main shaft, and the return plate pressing device is close to the return plate
One end is in arc surface, and is connected with the middle part of the return plate, and the return plate pressing device is close to the one of the cylinder body
Face is plane, and pressing device annular groove is machined on this face, and the cylinder body is processed on an end face of the return plate
There is cylinder body annular groove, one end of holddown spring is arranged in the pressing device annular groove, and the other end is arranged described
In cylinder body annular groove；The swash plate is pressed on the inner wall of the shell by the return plate pressing device.
Plunger bushing is installed in the plunger through-hole.
The main shaft is fluted in the processing of one end of the cylinder body, and check ring is equipped in the groove, the master
Axis is machined with shaft shoulder protrusion in the other end of the cylinder body.
The tilt angle of side of the swash plate far from its plane is 15 °.
The width of the oil-distribution port is less than the piston shoes close to the outer diameter of the one side of the swash plate.
Motion profile flow on pressure oil side that the swash plate be set of the through-hole of the piston shoes in the pressure oil side
In window ranges, motion profile the matching on the oil extraction side that the swash plate is set of the through-holes of the piston shoes in the oil extraction side
It flows in window ranges.
Under use state: at work, motor drives main shaft rotation to the axial plunger pump, the main shaft by with
Spline connection between the cylinder body drives the rotation of the cylinder body, and cylinder body drives the plunger around the cylinder body when rotating
Axis rotation, the plunger during rotation because swash plate there are generations with plunger through-hole formed with the plunger it is closed
The volume of cavity volume changes, to realize the process of suction oil in the oil-distribution port on swash plate.And in use
Return plate compression set compresses the return plate, and then drives the piston shoes moment and the swash plate to connect, and can be real
The reset of existing plunger, and the swash plate is pressed on the inner wall of the shell.
The plunger and piston shoes of the invention has through-hole, no longer uses the structure of tiny throttle orifice.But it uses
The structure of thicker through-hole, and as asphalt channel.Piston shoes close to swash plate one side use plane form, no longer plus
The annular oil groove that work has had hydrostatic support to act on.
Valve plate in the swash plate of axial plunger pump and traditional plunger pump is combined as a whole by the present invention, by plunger and piston shoes
Through-hole greatly improve the efficiency of axial plunger pump as asphalt channel, while making the structure of axial plunger pump more
It is compact.
The present invention can be widely popularized in fields such as axial plunger pumps based on the above reasons.
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 do simply to introduce, it should be apparent that, the accompanying drawings in the following description is this hair
Bright some embodiments for those of ordinary skill in the art without any creative labor, can be with
It obtains other drawings based on these drawings.
Fig. 1 is a kind of axial plunger pump outside drawing of symmetric double valve plate in the specific embodiment of the invention.
Fig. 2 is a kind of axial plunger pump sectional view of symmetric double valve plate in the specific embodiment of the invention.
Fig. 3 is oblique disk structure schematic diagram in the specific embodiment of the invention.
Fig. 4 is swash plate side view in the specific embodiment of the invention.
Fig. 5 is piston shoes and switch plunger structure diagram in the specific embodiment of the invention.
Fig. 6 is cylinder body structural schematic diagram in the specific embodiment of the invention.
Fig. 7 is return plate pressing device structural schematic diagram in the specific embodiment of the invention.
In figure: 1, shell；2, inlet port；3, bearing (ball) cover；4, main shaft；5, oil discharge outlet；6, swash plate；7, return plate；8, it returns
Journey disk pressing device；9, cylinder body；10, piston shoes；11, plunger；12, oil-distribution port；13, plunger through-hole；14, asphalt channel；15, flower
Key；16, swash plate central through hole；17, return plate central through hole；18, return plate through-hole；19, pressing device central through hole；20, it presses
Tight device annular groove；21, cylinder body annular groove；22, holddown spring；23, plunger bushing；24, check ring；25, shaft shoulder protrusion.
Specific embodiment
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention
In attached drawing, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is
A part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art
Every other embodiment obtained without making creative work, shall fall within the protection scope of the present invention.
As shown in FIG. 1 to FIG. 7, a kind of axial plunger pump of symmetric double valve plate, including main shaft 4, cylinder body 9, swash plate 6, column
Plug 11 and piston shoes 10, shell 1, return plate 7, bearing (ball) cover 3 and return plate pressing device 8, in the cylinder inside the shell 1
Symmetrical two of the both ends of body 9 swash plate 6；And the pressure oil side of the swash plate 6 and the intake side of the swash plate 6 are machined with
Oil-distribution port 12, two oil-distribution ports 12 are not connected to, and the cylinder body 9 is machined with seven equally distributed columns around its axis
Fill in through-hole 13；The both ends of the plunger through-hole 13 are mounted on the plunger 10, and one end of the plunger 11 is axially pierced by described
It plunger through-hole 13 and being connect with one end of the piston shoes 10, the inside of the plunger 11 and the piston shoes 11 is machined with through-hole,
Form asphalt channel 14；The asphalt channel 14 is connected to the plunger through-hole 13 and the oil-distribution port 12 respectively, and described
The oil discharge outlet 5 being connected to the oil-distribution port 12 on the pressure oil side that the swash plate 6 is arranged in is machined on shell 1 and with setting in institute
State the inlet port 2 that the oil-distribution port 12 on the intake side of swash plate 1 is connected to.
The piston shoes 10 are plane close to the one side of the swash plate 6, and rounded.
One end of main shaft 4 penetrates in the shell 1 and is connect with the cylinder body 9 by spline 15, and the main shaft 4 passes through institute
State cylinder body 9, the both ends of the main shaft 4 bearing with 1 junction of shell by being fixed on the shell 1 respectively
End cap 3 is rotatablely connected；The swash plate central through hole 16 for passing through the main shaft 4 is equipped in the middle part of the swash plate 6；
Two return plates 7 are separately positioned on the both ends of the cylinder body 9, and the return plate 7 is disc structure, and wherein
Portion offers the return plate central through hole 17 passed through for the main shaft 4, is machined on the return plate 7 close for the piston shoes 10
The return plate through-hole 18 that one end of the plunger 11 passes through, the one end of the piston shoes 10 far from the plunger 11 and the return plate
7 are clamped close to the side of the swash plate 6；
Two return plate pressing devices 8 are separately positioned on the both ends of the cylinder body 9, and the return plate pressing device
8 middle part offers the pressing device central through hole 19 passed through for the main shaft 4, and the return plate pressing device 8 is close to described
One end of return plate 7 is in arc surface, and is connected with the middle part of the return plate 7, and the return plate pressing device 8 is close to institute
The one side for stating cylinder body is plane, and pressing device annular groove 20 is machined on this face, and the cylinder body 9 is close to the return plate 7
An end face on be machined with cylinder body annular groove 21, one end of holddown spring 22 is arranged in the pressing device annular groove 20
Interior, the other end is arranged in the cylinder body annular groove 21；The swash plate 6 is pressed on by the return plate pressing device 8
On the inner wall of the shell 1.
Plunger bushing 23 is installed in the plunger through-hole 13.
The main shaft 4 is fluted in the processing of one end of the cylinder body 9, and check ring 24 is equipped in the groove, institute
The other end that main shaft 4 is stated in the cylinder body 9 is machined with shaft shoulder protrusion 25.
The tilt angle of the side of the swash plate 6 far from its plane is 15 °.
The width of the oil-distribution port 12 is less than the piston shoes 10 close to the outer diameter of the one side of the swash plate 6.
Motion profile matching on pressure oil side that the swash plate 6 be set of the through-hole of the piston shoes 10 in the pressure oil side
Flow in 12 range of window, the through-holes of the piston shoes 10 the oil extraction side motion profile in the oil extraction that the swash plate 6 is arranged in
In 12 range of oil-distribution port on side.
Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention., rather than its limitations；To the greatest extent
Pipe present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that: its according to
So be possible to modify the technical solutions described in the foregoing embodiments, or to some or all of the technical features into
Row equivalent replacement；And these are modified or replaceed, various embodiments of the present invention technology that it does not separate the essence of the corresponding technical solution
The range of scheme.
Claims (8)
1. a kind of axial plunger pump of symmetric double valve plate, including main shaft, cylinder body, swash plate, plunger and piston shoes, shell, return plate,
Bearing (ball) cover and return plate pressing device, it is characterised in that:
The enclosure interior is in symmetrical two swash plates in the both ends of the cylinder body；And the pressure oil side of the swash plate and described
The intake side of swash plate processes oil-distribution port, and two oil-distribution ports are not connected to, and the cylinder body is machined with around its axis
Multiple equally distributed plunger through-holes；The both ends of the plunger through-hole are mounted on the plunger, and one end of the plunger is axial
It being pierced by the plunger through-hole and is connect with one end of the piston shoes, the inside of the plunger and the piston shoes is machined with through-hole,
Form asphalt channel；The asphalt channel is connected to the plunger through-hole and the oil-distribution port respectively, and is added on the shell
Work have the oil discharge outlet being connected to the oil-distribution port on the pressure oil side that the swash plate is arranged in and with oil suction that the swash plate is set
The inlet port of oil-distribution port connection on side.
2. a kind of axial plunger pump of symmetric double valve plate according to claim 1, it is characterised in that: the piston shoes are close
The one side of the swash plate is plane, and rounded.
3. a kind of axial plunger pump of symmetric double valve plate according to claim 1, it is characterised in that: wear one end of main shaft
Enter and connect with the cylinder body by spline in the shell, and the main shaft passes through the cylinder body, the both ends of the main shaft are distinguished
Pass through fixed bearing (ball) cover rotation connection on the housing with the housing junction；It is equipped in the middle part of the swash plate
The swash plate central through hole for passing through the main shaft；
Two return plates are separately positioned on the both ends of the cylinder body, and the return plate is disc structure, and its middle part opens up
There is the return plate central through hole passed through for the main shaft, is machined on the return plate for the piston shoes close to the one of the plunger
Hold across return plate through-hole, the side card of the one end of the piston shoes far from the plunger and the return plate close to the swash plate
It connects；
Two return plate pressing devices are separately positioned on the both ends of the cylinder body, and the middle part of the return plate pressing device
The pressing device central through hole passed through for the main shaft is offered, the return plate pressing device is close to one end of the return plate
It is connected in arc surface, and with the middle part of the return plate, the return plate pressing device is close to the one side of the cylinder body
Plane, and pressing device annular groove is machined on this face, the cylinder body is machined with cylinder on an end face of the return plate
One end of body annular groove, holddown spring is arranged in the pressing device annular groove, and the other end is arranged in the cylinder body
In annular groove；The swash plate is pressed on the inner wall of the shell by the return plate pressing device.
4. a kind of axial plunger pump of symmetric double valve plate according to claim 3, it is characterised in that: the plunger through-hole
Plunger bushing is inside installed.
5. a kind of axial plunger pump of symmetric double valve plate according to claim 3, it is characterised in that: the main shaft is in institute
One end processing for stating cylinder body is fluted, and check ring is equipped in the groove, the other end of the main shaft in the cylinder body
It is machined with shaft shoulder protrusion.
6. a kind of axial plunger pump of symmetric double valve plate according to claim 1, it is characterised in that: the swash plate is separate
The tilt angle of the side of its plane is 15 °.
7. a kind of axial plunger pump of symmetric double valve plate according to claim 1, it is characterised in that: the oil-distribution port
Width be less than the piston shoes close to the one side of the swash plate outer diameter.
8. a kind of axial plunger pump of symmetric double valve plate according to claim 1, it is characterised in that: the piston shoes lead to
Hole the pressure oil side motion profile within the scope of the oil-distribution port on the pressure oil side that the swash plate is set, the piston shoes
Through-hole the oil extraction side motion profile within the scope of the oil-distribution port on the oil extraction side that the swash plate is set.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910834205.2A CN110513261A (en) | 2019-09-04 | 2019-09-04 | A kind of axial plunger pump of symmetric double valve plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910834205.2A CN110513261A (en) | 2019-09-04 | 2019-09-04 | A kind of axial plunger pump of symmetric double valve plate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110513261A true CN110513261A (en) | 2019-11-29 |
Family
ID=68629749
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910834205.2A Pending CN110513261A (en) | 2019-09-04 | 2019-09-04 | A kind of axial plunger pump of symmetric double valve plate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110513261A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114412742A (en) * | 2021-10-28 | 2022-04-29 | 中国航发西安动力控制科技有限公司 | Double-output axial plunger pump |
| CN117006038A (en) * | 2023-08-21 | 2023-11-07 | 中南大学 | Double-oil-distribution double-oil-outlet self-priming plunger pump |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3807283A (en) * | 1970-05-18 | 1974-04-30 | Cessna Aircraft Co | Axial piston pump or motor |
| JPS53109203A (en) * | 1977-03-04 | 1978-09-22 | Mitsubishi Heavy Ind Ltd | Valve board swash plate axial piston type oil presure motor or pump |
| US20050123412A1 (en) * | 2003-09-29 | 2005-06-09 | Takeo Shimizu | Swash plate type hydraulic pump or motor |
| CN203879837U (en) * | 2013-12-27 | 2014-10-15 | 张坚 | Duplex plunger pump |
| CN106438259A (en) * | 2016-09-18 | 2017-02-22 | 华中科技大学 | Double-swash-plate plunger pump |
| CN108425819A (en) * | 2018-03-31 | 2018-08-21 | 何旺成 | Swash plate skid shoe type axial plunger Water Hydraulic Pump or motor |
| CN110067713A (en) * | 2019-03-13 | 2019-07-30 | 钟彪 | A kind of tandem axial plunger pump |
-
2019
- 2019-09-04 CN CN201910834205.2A patent/CN110513261A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3807283A (en) * | 1970-05-18 | 1974-04-30 | Cessna Aircraft Co | Axial piston pump or motor |
| JPS53109203A (en) * | 1977-03-04 | 1978-09-22 | Mitsubishi Heavy Ind Ltd | Valve board swash plate axial piston type oil presure motor or pump |
| US20050123412A1 (en) * | 2003-09-29 | 2005-06-09 | Takeo Shimizu | Swash plate type hydraulic pump or motor |
| CN203879837U (en) * | 2013-12-27 | 2014-10-15 | 张坚 | Duplex plunger pump |
| CN106438259A (en) * | 2016-09-18 | 2017-02-22 | 华中科技大学 | Double-swash-plate plunger pump |
| CN108425819A (en) * | 2018-03-31 | 2018-08-21 | 何旺成 | Swash plate skid shoe type axial plunger Water Hydraulic Pump or motor |
| CN110067713A (en) * | 2019-03-13 | 2019-07-30 | 钟彪 | A kind of tandem axial plunger pump |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114412742A (en) * | 2021-10-28 | 2022-04-29 | 中国航发西安动力控制科技有限公司 | Double-output axial plunger pump |
| CN114412742B (en) * | 2021-10-28 | 2023-09-22 | 中国航发西安动力控制科技有限公司 | Double-output axial plunger pump |
| CN117006038A (en) * | 2023-08-21 | 2023-11-07 | 中南大学 | Double-oil-distribution double-oil-outlet self-priming plunger pump |
| CN117006038B (en) * | 2023-08-21 | 2024-03-12 | 中南大学 | Double-oil-distribution double-oil-outlet self-priming plunger pump |
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20191129 |
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| RJ01 | Rejection of invention patent application after publication |