CN107725353A - Plunger and energy conversion - Google Patents
Plunger and energy conversion Download PDFInfo
- Publication number
- CN107725353A CN107725353A CN201711046371.3A CN201711046371A CN107725353A CN 107725353 A CN107725353 A CN 107725353A CN 201711046371 A CN201711046371 A CN 201711046371A CN 107725353 A CN107725353 A CN 107725353A
- Authority
- CN
- China
- Prior art keywords
- plunger
- ball head
- feature structure
- cylinder body
- copper
- 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
- 238000006243 chemical reaction Methods 0.000 title claims abstract description 31
- 229910052802 copper Inorganic materials 0.000 claims abstract description 52
- 239000010949 copper Substances 0.000 claims abstract description 52
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 51
- 239000000463 material Substances 0.000 claims description 13
- 229910000881 Cu alloy Inorganic materials 0.000 claims description 8
- 239000000956 alloy Substances 0.000 claims description 4
- 230000002093 peripheral effect Effects 0.000 claims description 4
- 239000000853 adhesive Substances 0.000 abstract description 8
- 230000001070 adhesive effect Effects 0.000 abstract description 8
- 230000037081 physical activity Effects 0.000 abstract description 4
- 239000010720 hydraulic oil Substances 0.000 description 9
- 230000009286 beneficial effect Effects 0.000 description 5
- 229910000831 Steel Inorganic materials 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 239000010959 steel Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000005461 lubrication Methods 0.000 description 3
- 239000003921 oil Substances 0.000 description 3
- 238000005299 abrasion Methods 0.000 description 2
- 238000005474 detonation Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- -1 certainly Inorganic materials 0.000 description 1
- 150000001879 copper Chemical class 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
- F04B53/14—Pistons, piston-rods or piston-rod connections
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03C—POSITIVE-DISPLACEMENT ENGINES DRIVEN BY LIQUIDS
- F03C1/00—Reciprocating-piston liquid engines
- F03C1/02—Reciprocating-piston liquid engines with multiple-cylinders, characterised by the number or arrangement of cylinders
- F03C1/06—Reciprocating-piston liquid engines with multiple-cylinders, characterised by the number or arrangement of cylinders with cylinder axes generally coaxial with, or parallel or inclined to, main shaft axis
- F03C1/0602—Component parts, details
- F03C1/0605—Adaptations of 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
- 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
- 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
- F04B53/144—Adaptation of piston-rods
Abstract
The present invention relates to technical field of hydraulic equipment, and more particularly, to a kind of plunger and energy conversion, the plunger has copper feature structure, and at least part copper feature structure is formed at the position that plunger is used to contact with cylinder holes.The plunger has good thermal conductivity, and plunger is distributed in cylinder body activity because heat caused by friction transmits in time, avoids causing defunctionalization because of adhesive wear locking between cylinder body and plunger；And copper feature structure has good plasticity simultaneously, cylinder body and plunger this service life to friction pair is effectively improved, and then extend the service life of the energy conversion using the plunger.
Description
Technical field
The present invention relates to technical field of hydraulic equipment, more particularly, to a kind of plunger and energy conversion.
Background technology
Hydraulic pump and hydraulic motor are the antipodal mechanical energy conversion equipment of two kinds of operation principles, specifically, hydraulic pressure
Mechanical energy is converted into hydraulic energy output by pump, and hydraulic motor exports hydraulic energy transfer for mechanical energy, under certain condition, two
Person can mutually change.In hydraulic pump or hydraulic motor, this plays an important roll to friction pair for cylinder body and plunger, and plunger is in cylinder
Reciprocating motion in body realizes the energy conversion of equipment.At present, three kinds of fit forms be present in the material of cylinder body and plunger selection：
The first is that steel plunger corresponds to steel cylinder body；Second is that cylinder body edge copper sheathing coordinates with steel plunger；The third is steel column
The corresponding copper cylinder body of plug.With regard to three of the above fit form, when equipment reaches larger displacement or higher rotation speed, the first is with second
Plunger and the even detonation of cylinder body adhesive wear caused by radiating not in time occurs in kind, and the third is because of cylinder body total quality
It is excessive and it is yielding easily occur cylinder body topple or leakage rate increase problem.It can be seen that the fit structure of the existing form of three of the above
Pump or motor defunctionalization can be caused.
The information for being disclosed in the background section is merely intended to deepen the understanding of the general background technology to the present invention, and
It is not construed as recognizing or implies information structure prior art known to those skilled in the art in any form.
The content of the invention
It is an object of the invention to provide a kind of plunger and energy conversion, to solve hydraulic pump or liquid in the prior art
Pressure motor radiates not in time between its plunger and cylinder body under the operating mode of huge discharge high speed, causes to set because of adhesive wear locking
The technical problem of standby defunctionalization.
On the one hand, the present invention provides a kind of plunger, and the plunger has copper feature structure, at least partly described copper spy
Sign structure is formed at the position that the plunger is used to contact with cylinder holes.
As a kind of further technical scheme, the plunger includes stopper rod portion, ball head and shoulder block portion；The ball head
The one end in the stopper rod portion is arranged at, the other end in the stopper rod portion is used to be plugged in the cylinder holes, and the shoulder block portion is set
In the stopper rod portion on the outer peripheral face of the ball head, wherein at least described stopper rod portion is by the copper feature structure shape
Into.
As a kind of further technical scheme, the ball head and/or the shoulder block portion are by the copper feature structure
Formed.
As a kind of further technical scheme, axially arranged there are hollow cavity, the ball head in the stopper rod portion along its
Throttle orifice has been formed through between the hollow cavity.
As a kind of further technical scheme, the hollow cavity is provided with taper flow close to one end of the throttle orifice
Road.
As a kind of further technical scheme, the one end of the hollow cavity away from the throttle orifice is provided with positioning
Portion.
As a kind of further technical scheme, the material of the copper feature structure is copper material or copper alloy material
Matter.
On the other hand, the present invention also provides a kind of energy conversion, including cylinder body, swash plate and such as above-mentioned technical scheme carry
Any plunger supplied, the cylinder body are provided with several cylinder holes, are each provided between the cylinder holes and the swash plate
The plunger.
As a kind of further technical scheme, be provided with ball recess on the swash plate, the ball head of the plunger with
The ball recess abuts against.
As a kind of further technical scheme, the ball head of the plunger is abutted against by piston shoes and the swash plate.
A kind of plunger and energy conversion provided by the invention can reach following beneficial effect：
The present invention provides a kind of plunger, and for existing plunger, plunger provided by the invention has copper feature
Structure, and at least part copper feature structure is formed at the position that plunger is used to contact with cylinder holes.The copper feature structure has
Good thermal conductivity, plunger is distributed in cylinder body activity because heat caused by friction transmits in time, avoids cylinder body and plunger
Between because of adhesive wear locking cause defunctionalization；And copper feature structure has good plasticity simultaneously, effectively change
It has been apt to cylinder body and plunger this service life to friction pair.
Plunger type energy conversion provided by the invention uses above-mentioned plunger, equally has with same with above-mentioned plunger
Beneficial effect, while the service life of equipment can be improved.The plunger type energy conversion is applicable to hydraulic pump and hydraulic pressure horse
Reach, beneficial to popularization and application.
Brief description of the drawings
, below will be to specific in order to illustrate more clearly of the specific embodiment of the invention or technical scheme of the prior art
The required accompanying drawing used is briefly described in embodiment or description of the prior art, it should be apparent that, in describing below
Accompanying drawing is some embodiments of the present invention, for those of ordinary skill in the art, before creative work is not paid
Put, other accompanying drawings can also be obtained according to these accompanying drawings.
A kind of sectional view for plunger that Fig. 1 is provided by the embodiment of the present invention one；
A kind of sectional view for energy conversion that Fig. 2 is provided by the embodiment of the present invention two；
The principle schematic for the energy conversion that Fig. 3 is provided by the embodiment of the present invention two.
Icon：1- plungers；11- stopper rods portion；111- hollow cavities；112- throttle orifices；113- tapered runners；114- is positioned
Portion；12- ball heads；13- shoulder blocks portion；2- housings；3- cylinder bodies；4- swash plates；5- main shafts；6- central springs；7- inlet ports；8- is fuel-displaced
Mouthful.
Embodiment
Technical scheme is clearly and completely described below in conjunction with accompanying drawing, it is clear that described implementation
Example is part of the embodiment of the present invention, rather than whole embodiments.Based on the embodiment in the present invention, ordinary skill
The every other embodiment that personnel are obtained under the premise of creative work is not made, belongs to the scope of protection of the invention.
The embodiment of the present invention is described in detail below in conjunction with accompanying drawing.It should be appreciated that this place is retouched
The embodiment stated is merely to illustrate and explain the present invention, and is not intended to limit the invention.
Embodiment one
Reference picture 1, a kind of plunger is present embodiments provided, for pluger type hydraulic pump or plunger hydraulic motor.The post
Plug 1 has copper feature structure, and at least part copper feature structure is formed at the position that plunger 1 is used to contact with cylinder holes.Should
Copper feature structure has good thermal conductivity, and plunger 1 is dissipated in cylinder body activity because heat caused by friction transmits in time
Hair, avoids causing defunctionalization because of adhesive wear locking between cylinder body and plunger 1；And copper feature structure has well simultaneously
Plasticity, effectively improve cylinder body and plunger 1 this service life to friction pair.
In the present embodiment, for copper feature structure, it can be understood as the part and is structure as a whole with plunger 1
(that is, the part of itself of plunger 1), it is understood that for the part be additional in the part on plunger 1.No matter which kind of shape
Formula, as long as the plunger implemented on plunger using copper feature belongs to the protection domain of the present embodiment.
Moreover, this copper feature structure in the present embodiment needs at least to be distributed in the position contacted with cylinder holes, also
It is to say, copper feature structure forms some or all of plunger 1, wherein, when copper feature structure forms one of plunger 1
Timesharing is, it is necessary to which the part for meeting to contact with cylinder holes is copper feature structure.
It is, of course, preferable to ground, plunger 1 is made of the material with copper feature.
Such as：The material of copper feature structure can be copper, in addition, the material of copper feature structure can also use copper to close
Gold, certainly, copper alloy here equally have identical effect with elemental copper.Moreover, there have some Copper alloy materials to be also possible to be excellent
In copper material, because Copper alloy material can make up the shortcomings that copper material quality is partially soft, easy to wear, meet in intensive work
The requirement of hardness and anti-wear performance.
It can be seen that the plunger that the present embodiment provides is at work, plunger 1 does piston movement in the cylinder holes of cylinder body, and plunger 1 is not
It is disconnected to produce friction with the inwall of cylinder holes.When the position that plunger 1 is used to contact with cylinder holes is copper feature structure, plunger 1 and cylinder
Heat caused by body friction can be exported in time, avoids hydraulic pump and adhesive wear occurs under huge discharge or high-speed working condition,
It effectively prevent the danger of detonation.Meanwhile copper feature structure has good plasticity, cylinder body and post can be significantly improved
Fill in the service life of 1 this friction pair.
Specifically, the plunger 1 that the present embodiment provides mainly includes stopper rod portion 11, ball head 12 and shoulder block portion 13；Wherein, ball
Head 12 is arranged at the one end in stopper rod portion 11, and the other end in stopper rod portion 11 is used to be plugged in the cylinder holes of cylinder body (visible, stopper rod portion
11 can contact with cylinder holes)；Shoulder block portion 13 is arranged at stopper rod portion 11 on the outer peripheral face of ball head 12, at least stopper rod portion 11 by
Copper feature structure is formed.In the present embodiment, it is to be understood that ball head 12 is used for oblique with hydraulic pump or hydraulic motor
Disk contacts, and stopper rod portion 11 is used to move reciprocatingly in the cylinder holes of cylinder body, at least ensures that stopper rod portion 11 is by copper feature structure
Formed, such as：The material in stopper rod portion 11 can be copper or copper alloy.
Certainly, as preferable scheme, the ball head 12 of plunger 1 and/or shoulder block portion 13 are also by above-mentioned copper feature structure
Formed.It is understood that the meaning to be expressed of the "and/or" is：So that " ball head 12 is by above-mentioned copper feature structure shape
Into " a is defined as, b is defined as with " shoulder block portion 13 is formed by above-mentioned copper feature structure ", wherein, the technology that a and/or b are formed
Scheme includes：First, simultaneous selection a and b；2nd, a is individually selected；3rd, b is individually selected.Further say, ball head 12 and/or gear
The material of shoulder 13 is also copper or copper alloy.
It is more preferable that stopper rod portion 11, ball head 12 and shoulder block portion 13 are made of copper or copper alloy.Work as plunger
When the material of 1 various pieces is identical, simplify the manufacturing process of plunger 1, also improve the structural stability of plunger 1 with uniformly
Property.
In the present embodiment, shoulder block portion 13 is provided with the outer peripheral face of ball head 12 in stopper rod portion 11, shoulder block portion 13 is
The boss of the side face of one circle protrusion stopper rod portion 11.In use, central spring is arranged with the stopper rod portion 11 of plunger 1, when plunger 1 exists
When being moved reciprocatingly in cylinder holes, shoulder block portion 13 is used to support central spring, plays a part of spring base.
Further, stopper rod portion 11 along its it is axially arranged have hollow cavity 111, between ball head 12 and hollow cavity 111
It has been formed through throttle orifice 112.It should be noted that axis direction extension of the throttle orifice 112 along plunger 1, penetrates ball head 12
With hollow cavity 111.In the work of hydraulic pump or hydraulic motor, plunger 1 forms sealed volume chamber with cylinder holes, passes through plunger 1
The volume change of sealed volume chamber is realized in reciprocating motion in cylinder holes, so as to realize the suction of hydraulic oil and extrusion.At this
During, positioned at sealed volume intracavitary hydraulic oil sub-fraction pass through throttle orifice 112 reach plunger 1 the appearance of ball head 12
Face, one layer of oil film is formed between ball head 12 and swash plate, plays a part of lubrication.
Specifically, for hollow cavity 111 along the axially arranged of stopper rod portion 11, it is shaped as cylinder, and coaxial with plunger 1
The heart, the uniformity of the revolving structure of plunger 1 is ensure that, the rotation when plunger 1 moves back and forth in cylinder holes around itself axial direction is uniform
It is stable.
Further, since the presence of hollow cavity 111, effectively reduces the quality of plunger 1, is being transported so as to reduce plunger 1
Inertia force during dynamic, reduce the possibility that interference is produced to hydraulic pump or hydraulic motor normal work.
Specifically, hollow cavity 111 is provided with tapered runner 113 close to one end of throttle orifice 112.Hollow cavity 111
Internal diameter is far longer than the internal diameter of throttle orifice 112, and the hydraulic oil in hollow cavity 111 flows to ball head by throttle orifice 112
12 amount is very small, is entered to reduce hydraulic oil by hollow cavity 111 during throttle orifice 112 to being formed in stopper rod portion 11
Pressure, the position of throttle orifice 112 is provided with tapered runner 113 in hollow cavity 111, plays certain cushioning effect.
It should be noted that the technological borehole that is formed by of the tapered runner 113 forms apex point shape after hollow cavity 111
Into.Also, the one end of hollow cavity 111 away from throttle orifice 112 is provided with location division 114.The location division 114 processes for technique
With chamfering, for cylindrical grinding Set and Positioning in manufacturing process, convenient processing.
To sum up, it can be seen that the present embodiment provide with pluger type hydraulic pump or the plunger 1 of hydraulic motor, compared to existing
Some plungers, there is good thermal conductivity, plunger 1 distributed in cylinder body activity because heat caused by friction transmits in time,
Avoid causing defunctionalization because of adhesive wear locking between cylinder body and plunger 1；And copper feature structure simultaneously have it is good
Plasticity, effectively improve cylinder body and plunger 1 this service life to friction pair.
Embodiment two
Reference picture 2-3, the present embodiment provide a kind of energy conversion, and the energy conversion includes cylinder body 3, swash plate 4
Any plunger 1 provided with embodiment one, cylinder body 3 are provided with several cylinder holes, post are provided between each cylinder holes and swash plate 4
Plug 1.Wherein, the structure on the plunger 1 has hereinbefore been discussed in detail, and here is omitted.
Specifically, the energy conversion also includes housing 2 and main shaft 5.Main shaft 5 is arranged in housing 2, swash plate 4 and cylinder
Body 3 is arranged in housing 2 with being adapted.Cylinder body 3 is sheathed on main shaft 5, and cylinder body 3 can rotate with main shaft 5.Cylinder body 3
Several cylinder holes are shown along its circumferential circular array in one end.The axis for being axially parallel to cylinder body 3 of cylinder holes, also parallel with main shaft 5
Axis.An above-mentioned plunger 1 is movably set with each cylinder holes, and the ball head 12 of plunger 1 is exposed to cylinder holes and the phase of swash plate 4
Support.Swash plate 4 is fixedly installed on close to the side of the ball head 12 of plunger 1 in housing 2, and swash plate 4 and main shaft 5 are angled, is used
Contacted in the ball head 12 with plunger 1.Inlet port 7 and oil-out 8 are additionally provided with housing 2, hydraulic oil can be entered by inlet port 7
Enter the sealed volume intracavitary that plunger 1 is formed with cylinder body 3, finally extruded by oil-out 8, complete energy conversion.
The ball head 12 of plunger 1 is abutted with swash plate 4 and circled on swash plate 4, is used for and the ball of plunger 1 on swash plate 4
The distance for the end of partial distance cylinder body 3 that head 12 contacts.When cylinder body 3 rotates, the ball head of plunger 1 needs to protect always
Hold the abutting with swash plate 4, then the stroke that plunger 1 moves in cylinder holes can be changed due to different from the contact position of swash plate 4,
So as to which the volume for the sealed volume chamber that plunger 1 is formed in cylinder holes changes, and the change of volume causes oil suction and the shape of force feed
State converts.
Specifically, the energy conversion can be oblique tray type plunger hydraulic pump, or oblique tray type plunger hydraulic horse
Reach.Reference picture 3, the operation principle of the energy conversion is made to be discussed in detail.
When the energy conversion is oblique tray type plunger hydraulic pump, in its normal work, with the post of the top in Fig. 3
Exemplified by plug 1, main shaft 5 rotates under the driving of prime mover, drives cylinder body 3 to rotate, plunger 1 is in the presence of central spring 6 along cylinder
Hole is moved to swash plate 4, and low-pressure hydraulic oil is sucked into the sealed volume intracavitary that plunger 1 and cylinder body 3 form through inlet port 7.With master
The rotation of axle 5, in the presence of swash plate 4, plunger 1 moves along cylinder holes away from swash plate 4, and central spring 6 is compressed, by hydraulic oil with
High voltage style exports from oil-out 8, and so on circulates, and completes mechanical energy and the energy conversion of hydraulic pressure.
When the energy conversion is oblique tray type plunger hydraulic motor, in its normal work, with the top in Fig. 3
Exemplified by plunger 1, high pressure liquid force feed enters the sealed volume intracavitary of plunger 1 and the composition of cylinder body 3 through inlet port 7, in central spring 6
Effect lower plunger 1 moves along cylinder holes to swash plate, and the inclined acting in opposition of swash plate 4 provides moment of torsion in plunger 1 for it, and plunger 1 drives
Cylinder body 3 and main shaft 5 rotate, and complete the conversion of hydraulic energy and mechanical energy.With circular motion of the plunger 1 on swash plate 4, oblique
In the presence of disk 4, plunger 1 is moved along cylinder holes away from swash plate, and central spring 6 is compressed, and low-pressure hydraulic oil is discharged from oil-out 8.
In the course of work of both the above form, plunger 1 abuts with swash plate 4, and central spring 6 provides pre-pressing force, its
In have copper feature structure plunger 1 utilize its good thermal conductivity and plasticity, by plunger 1 with cylinder body 3 caused by friction
Heat in time transmit distribute, avoid the plunger 1 of cylinder body 3 from causing defunctionalization because of adhesive wear locking.
Specifically, the cooperation between swash plate 4 and the ball head 12 of plunger 1 has a variety of implementations, is exemplified below.
Mode one
Ball recess is provided with swash plate 4, and the ball head 12 of the ball recess and plunger 1 cooperates.When energy turns
When exchange device operates, realization is directly abutted between ball head 12 and ball recess and is slidably matched, the energy of throttle orifice 112 on plunger 1
Lubrication is enough provided between swash plate 4 and ball head 12 by hydraulic oil, reduces the abrasion of the ball head 12 of plunger 1.
This way of contact eliminates piston shoes, return plate, ball pivot parts in conventional energy conversion equipment, simplifies and sets
Standby structure.
Mode two
The ball head 12 of plunger 1 is offseted by piston shoes and the groove on swash plate 4.Piston shoes are connected to the ball head 12 of plunger 1,
Offseted with swash plate 4, realized and be slidably matched by piston shoes when energy conversion operates, between ball head 12 and swash plate 4, plunger
Throttle orifice 112 on 1 can output hydraulic pressure oil provide lubrication between piston shoes and swash plate 4.
This way of contact reduces the contact stress between plunger 1 and swash plate 4 by piston shoes, reduces to a certain extent
The abrasion of plunger 1.
It should be noted that the fit system between both the above plunger 1 and swash plate 4 simply directly contacts and mediate contact
Concrete example, the protection domain being not intended to limit the present invention.
To sum up, the energy conversion that the present embodiment is provided, the plunger 1 with copper feature structure is employed, can
Acquirement and the same beneficial effect of above-mentioned plunger 1, while the service life of whole equipment can be improved.The plunger type energy conversion
Equipment is applicable to hydraulic pump and hydraulic motor, beneficial to popularization and application.
Finally it should be noted that：Various embodiments above is merely illustrative of the technical solution of the present invention, rather than its limitations；To the greatest extent
The present invention is described in detail with reference to foregoing embodiments for pipe, it will be understood by those within the art that：Its according to
The technical scheme described in foregoing embodiments can so be modified, either which part or all technical characteristic are entered
Row equivalent substitution；And these modifications or replacement, the essence of appropriate technical solution is departed from various embodiments of the present invention technology
The scope of scheme.
Claims (10)
1. a kind of plunger, it is characterised in that the plunger has copper feature structure, at least partly described copper feature structure shape
Plunger described in Cheng Yu is used for the position contacted with cylinder holes.
2. plunger according to claim 1, it is characterised in that the plunger includes stopper rod portion, ball head and shoulder block portion；Institute
One end that ball head is arranged at the stopper rod portion is stated, the other end in the stopper rod portion is used to be plugged in the cylinder holes, the gear
Shoulder is arranged at the stopper rod portion on the outer peripheral face of the ball head, and wherein at least described stopper rod portion is by the copper feature
Structure is formed.
3. plunger according to claim 2, it is characterised in that the ball head and/or the shoulder block portion are by the copper
Feature structure is formed.
4. plunger according to claim 2, it is characterised in that axially arranged there are hollow cavity, institute in the stopper rod portion along its
State and be formed through throttle orifice between ball head and the hollow cavity.
5. plunger according to claim 4, it is characterised in that the hollow cavity is set close to one end of the throttle orifice
There is tapered runner.
6. plunger according to claim 4, it is characterised in that the one end of the hollow cavity away from the throttle orifice is set
There is location division.
7. according to the plunger any one of claim 1-6, it is characterised in that the material of the copper feature structure is copper
Material or Copper alloy material.
8. a kind of energy conversion, it is characterised in that including cylinder body, swash plate and as any one of claim 1-7
Plunger, the cylinder body are provided with several cylinder holes, and the plunger is each provided between the cylinder holes and the swash plate.
9. energy conversion according to claim 8, it is characterised in that ball recess, institute are provided with the swash plate
The ball head and the ball recess for stating plunger abut against.
10. energy conversion according to claim 8, it is characterised in that the ball head of the plunger by piston shoes with
The swash plate abuts against.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711046371.3A CN107725353A (en) | 2017-10-31 | 2017-10-31 | Plunger and energy conversion |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711046371.3A CN107725353A (en) | 2017-10-31 | 2017-10-31 | Plunger and energy conversion |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107725353A true CN107725353A (en) | 2018-02-23 |
Family
ID=61203518
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711046371.3A Pending CN107725353A (en) | 2017-10-31 | 2017-10-31 | Plunger and energy conversion |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107725353A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113623162A (en) * | 2021-09-06 | 2021-11-09 | 德帕姆(杭州)泵业科技有限公司 | Micro-flow rotary plunger pump |
| CN114738221A (en) * | 2022-04-29 | 2022-07-12 | 杭州力龙液压有限公司 | Support plunger swash plate assembly, hydraulic power mechanism and engineering machinery |
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| EP1930589A1 (en) * | 2006-12-08 | 2008-06-11 | Honeywell International Inc. | Cladded axial motor/pump piston and method of producing same |
| CN102235277A (en) * | 2010-04-21 | 2011-11-09 | 三菱电机株式会社 | Fuel supply device |
| CN202431468U (en) * | 2011-11-08 | 2012-09-12 | 王玉喜 | Plunger pump with simple structure |
| CN103615385A (en) * | 2013-11-27 | 2014-03-05 | 北京工业大学 | Detachable plunger piston shoe assembly of swash plate hydraulic pump |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE832852C (en) * | 1946-03-08 | 1952-02-28 | Schweizerische Lokomotiv | Axial piston machine, especially for pumping fluids |
| CN1229170A (en) * | 1999-02-11 | 1999-09-22 | 太原理工大学 | Large torque and high-efficient axial piston hydraulic motor |
| EP1930589A1 (en) * | 2006-12-08 | 2008-06-11 | Honeywell International Inc. | Cladded axial motor/pump piston and method of producing same |
| CN102235277A (en) * | 2010-04-21 | 2011-11-09 | 三菱电机株式会社 | Fuel supply device |
| CN202431468U (en) * | 2011-11-08 | 2012-09-12 | 王玉喜 | Plunger pump with simple structure |
| CN103615385A (en) * | 2013-11-27 | 2014-03-05 | 北京工业大学 | Detachable plunger piston shoe assembly of swash plate hydraulic pump |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113623162A (en) * | 2021-09-06 | 2021-11-09 | 德帕姆(杭州)泵业科技有限公司 | Micro-flow rotary plunger pump |
| CN114738221A (en) * | 2022-04-29 | 2022-07-12 | 杭州力龙液压有限公司 | Support plunger swash plate assembly, hydraulic power mechanism and engineering machinery |
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