CN105114278B - Axial plunger pump - Google Patents
Axial plunger pump Download PDFInfo
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- CN105114278B CN105114278B CN201510442569.8A CN201510442569A CN105114278B CN 105114278 B CN105114278 B CN 105114278B CN 201510442569 A CN201510442569 A CN 201510442569A CN 105114278 B CN105114278 B CN 105114278B
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- pump
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- 238000006073 displacement reaction Methods 0.000 claims abstract description 13
- 108090000565 Capsid Proteins Proteins 0.000 claims description 7
- 238000005253 cladding Methods 0.000 claims description 4
- 241001416181 Axis axis Species 0.000 claims 1
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 239000003921 oil Substances 0.000 description 13
- 239000000463 material Substances 0.000 description 6
- 238000000034 method Methods 0.000 description 6
- 230000006872 improvement Effects 0.000 description 4
- 239000007788 liquid Substances 0.000 description 4
- 230000007246 mechanism Effects 0.000 description 4
- 238000007789 sealing Methods 0.000 description 4
- 230000008878 coupling Effects 0.000 description 3
- 238000010168 coupling process Methods 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
- 238000013467 fragmentation Methods 0.000 description 3
- 238000006062 fragmentation reaction Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 241000283074 Equus asinus Species 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 238000005213 imbibition Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 241000446313 Lamella Species 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012634 fragment Substances 0.000 description 1
- 239000010720 hydraulic oil Substances 0.000 description 1
- 210000003734 kidney Anatomy 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 210000001138 tear Anatomy 0.000 description 1
- 230000001052 transient effect Effects 0.000 description 1
- 230000032258 transport Effects 0.000 description 1
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- Reciprocating Pumps (AREA)
Abstract
The invention discloses a novel axial plunger pump, which comprises an end cover, a front shell, a rear shell, a pump shaft, a valve plate, a swash plate and a cylinder body, wherein the swash plate and the cylinder body are installed in the rear shell; the cross-shaped wobble plate comprises an inner wobble plate and an outer wobble plate, the inner wobble plate is rotationally connected with the outer wobble plate through an inner wobble plate fixing sleeve, the outer wobble plate is rotationally connected with the cylinder body through an outer wobble plate fixing sleeve, a sliding shoe hole is formed in the inner wobble plate, the sliding shoe is connected with the plunger assembly, and the sliding shoe can axially reciprocate along the cross-shaped wobble plate; the piston shoe disc of the invention embeds the return stroke disc, the piston shoe and the plunger ball head into a whole in the prior art, reduces the radial force of the cylinder body and the plunger seat, avoids the friction loss of the plunger hole, increases the swing angle of the swash plate, is beneficial to increasing the return stroke distance of the plunger seat, and increases the displacement of the plunger pump.
Description
Technical field
The present invention relates to hydraulic pump field, more specifically, it relates to a kind of axial plunger pump.
Background technology
Pump is the dynamical element and core parts of pressure system, therefore it is designed and is studied and its important meaning.
The version of pump mainly includes that the sealing effectiveness of plunger type, vane type, gear type, vane type and gear type pump is poor, volume effect
Rate is low, and in the case where operating pressure is improved, leakage is serious.Conventional plunger pump structure three couples key friction pair include plunger with
Cylinder holes, piston shoes and swash plate, valve plate and cylinder body end face, are all face contacts, therefore sealing effectiveness is relatively preferable, higher in pressure ratio
The volumetric efficiency high with can ensure that comparison under the operating mode of low-viscosity media, and relative to vane type and gear type pump, friction
Pair has than relatively low PV values.Therefore, existing pump employs the structure of plunger type mostly.
The pump of plunger-type structure can be divided into axial piston structure and radial plunger type knot according to the arrangement of plunger
Structure.The specific power of radial mode plunger displacement pump is big, and is limited by circumferentially space, is only used for the occasion of low speed high torque；Axially
The pump of plunger-type structure reduces the abrasion of friction pair and power loss therefore most of plunger displacement pump adopts axial piston structure.
Axial plunger pump is that the parallel volume change for moving back and forth generation carries out work in the cylinder bore of cylinder body using plunger
Make.During work, drive shaft drives cylinder body rotation, during cylinder body rotates a circle, slides on the plunger in cylinder bore
Do in the presence of swash plate and once move back and forth, realize an oil suction and force feed.Plunger in when pressing oil stroke, be close to simultaneously by swash plate
Plunger assembly, plunger assembly is promoted to eject the hydraulic oil in plunger.Due to swash plate squeeze the plunger assembly at a certain angle, cause
Plunger is larger with cylinder body radial pressure.The numerical value of radial pressure directly affects rated pressure, life-span and the efficiency of pump；But work as plunger
In oil suction stroke when, plunger cavity pressure be negative pressure, be insufficient to allow plunger to stretch out, plunger is unable to automated backhaul, causes axial direction
Plunger displacement pump suction capacity is poor, and strong cavitation cavitation can be even caused when serious, produce larger flow, pressure fluctuation,
Hydraulic shock and noise, the serious friction for causing pair in axial piston pump, plunger pair and Slipper coupling weares and teares, and substantially reduces axial direction
The service life of plunger displacement pump.
At present the return mechanism of plunger displacement pump again may be used mainly by return plate backhaul, retracting spring backhaul according to its operation principle
It is divided into fixed gap backhaul, flying height backhaul etc., but inevitably there is phase mutual friction between return plate and piston shoes
Problem, be solve plunger backhaul friction problem, it will usually adopt following methods：（1）Auxiliary oil pump feed backhaul.Plunger is auxiliary
Help protruding under the effect of pump oil compensation pressure, now, axial plunger pump need to additionally increase without suction capacity in hydraulic system
Plus slippage pump, increased system cost.（2）Spring is installed in each plunger intracavity, plunger is pressed on tiltedly using spring thrust
On disk.Now spring bears alternate stress, there is serious fatigue problem, greatly shortens the service life of axial plunger pump.
（3）Return plate is compressed using central spring.Due to being limited by axial plunger pump space, spring difficult design can only be provided
Partial plunger reverberation matrix method, it is impossible to be fully solved plunger backhaul problem.（4）Piston shoes are clipped between return plate and swash plate and have certain
Gap, return plate is fixedly connected with swash plate, i.e. mechanical forced backhaul.This structure is complex, makes swash plate larger, this
Outward, Slipper coupling needs to bear high-frequency alternating tension and compression stress, and Slipper coupling loosens, pulls the phenomenon of even fragmentation and happen occasionally, pulls
Piston shoes fragment can cause plunger displacement pump transient failure, have a strong impact on the safe and stable operation of whole hydraulic system.
The patent document of Application No. CN201310171205.1 discloses a kind of axial plunger pump return-stroke mechanism on market,
Its plunger is stepped, and stepped cylinder holes is axially arranged with along cylinder body on the wall of cylinder body, and the stepped cylinder holes is along between the circumference of cylinder body
Every distribution, plunger is placed in stepped cylinder holes, and the enlarged diameter section of plunger coordinates with the enlarged diameter section gap of stepped cylinder holes, plunger
The reduced diameter section gap of reduced diameter section and stepped cylinder holes coordinate；When plunger is moved back and forth in stepped cylinder holes, plunger
An oil pocket, the reduced diameter section of plunger are consistently formed between the bottom surface of the reduced diameter section of the end face of reduced diameter section and stepped cylinder holes
Outside wall surface and stepped cylinder holes enlarged diameter section internal face between consistently form an annular region, each described oil pocket one
One accordingly connects with a kidney slot of cylinder body；Compartment of terrain offers the first oil duct on the wall of cylinder body, each described oil pocket one
One is accordingly connected by first oil duct with an annular region, and liquid resistance is provided with each first oil duct；Each annular region
It is interconnected.The technical scheme is asked by the setting of stepped plunger and plunger hole for improving backhaul of the prior art
Topic, but stepped plunger and plunger hole machined need to ensure axiality that its difficulty is larger, and for both in plunger displacement pump
Coordinating needs higher accuracy class, further increases difficulty of processing, secondly stepped plunger compared with original plunger its
Structural strength is lowered by, the situation that plunger may be caused to rupture during plunger pump operation, affects the safety of whole hydraulic system
Operation.
The content of the invention
In view of the shortcomings of the prior art, it is an object of the invention to provide a kind of friction loss is less, efficiency is higher
Axial plunger pump.
For achieving the above object, the invention provides following technical scheme：A kind of axial plunger pump, including end cap, fore shell
Body, back casing, pump shaft, valve plate, the swash plate in back cover body and cylinder body, the end cap, procapsid, back casing and flow
Disk is sequentially fixedly connected, and the pump shaft rotates connection cylinder body, and the pump shaft wears swash plate, and cross pendulum is additionally provided with the plunger displacement pump
Disk and plunger assembly, are provided with plunger hole in the cylinder body, plunger assembly one end is embedded in plunger hole, and the plunger assembly other end connects
Cross balance is connect, the cross balance is arranged with swash plate in conflict；
The cross balance includes interior balance and outer balance, and it is outer that the interior balance rotates connection by interior balance fixes sleeve
Balance, the outer balance rotates connection cylinder body by outer balance fixes sleeve, offers for being embedded piston shoes on the interior balance
Piston shoes hole, the piston shoes connect plunger assembly, and piston shoes can be along cross balance axially reciprocating.
The present invention is further arranged to：Piston shoes disk is embedded with the interior balance, piston shoes hole position on piston shoes disk, the cunning
Boots are embedded in piston shoes disk by piston shoes hole.
The present invention is further arranged to：Fixed plate is connected with the cylinder body, the outer balance fixes sleeve is embedded at solid
In fixed board, the interior balance fixes sleeve is embedded at outer balance.
The present invention is further arranged to：The pump shaft is gear shaft, by gear shaft between the gear shaft and cylinder body
Gear driven.
The present invention is further arranged to：The interior balance outer wall and outer balance outer wall are respectively connected with rotary shaft, the rotation
Axle is embedded at respectively outer balance fixes sleeve and interior balance fixes sleeve.
The present invention is further arranged to：The interior balance rotary shaft and outer balance rotary shaft axis projections are mutually perpendicular to.
The present invention is further arranged to：Two rotary shafts are respectively provided with the interior balance and outer balance, two on interior balance
Rotary shaft is coaxially disposed, and two rotary shafts are coaxially disposed on outer balance, and outer balance is by rotary shaft in outer balance fixes sleeve
Can swing around vertical axis, interior balance can be swung in interior balance fixes sleeve by rotary shaft around horizontal axis, again can be with outer
Balance swings around vertical axis.
The present invention is further arranged to：The plunger assembly includes plunger and plunger mat, and the plunger mat is embedding with plunger hole
If being slidably connected, the plunger two ends are integrally provided with plunger ball, and the piston shoes coat plunger near cross balance side
Plunger ball, plunger ball of the plunger mat cladding plunger away from cross balance side.
The present invention is further arranged to：The piston shoes include front piston shoes and rear piston shoes, and the front piston shoes and rear piston shoes are coated
Plunger ball and composition spherical hinge structure.
The present invention is further arranged to：Bearing assembly is installed, the bearing assembly is rolled by some circular cones on the pump shaft
Sub- bearing composition.
It is connected with plunger assembly by cross balance by adopting above-mentioned technical proposal, swash plate, plunger two ends have spherical
Structure, stress is two power bar states, the radial force of plunger hole is greatly reduced, so as to reduce friction loss, Ke Yi great
Width improves the operating pressure of axial plunger pump, improves service life, improves efficiency, reduces material requirements, has widened material choosing
The scope selected.Be conducive to increasing the pivot angle of swash plate simultaneously, the increase of swash plate pivot angle is conducive to increasing the backhaul distance of plunger mat, from
And increase the discharge capacity of plunger displacement pump.
The piston shoes disk of the present invention is embedded as a whole return plate of the prior art and piston shoes, piston shoes and plunger ball, transports
Always there are some plungers in row in force feed stroke, so as to piston shoes disk is pressed on swash plate, made in suction by overall piston shoes disk
The plunger backhaul of liquid stroke, rear piston shoes assemble plunger in piston shoes disk, improve plunger piston slippery boots spherical pair and loosen, pull even
The phenomenon of fragmentation；Additionally, backhaul mode of the present invention is not required to the auxiliary of spring, it is to avoid make because spring bears high-frequency alternating stress
The phenomenon that the axial plunger pump life-span declines, and the lateral forces suffered by cylinder body are effectively overcome, in particular for axial columns
Plug pump, is not required to other return mechanisms, simplifies structure design.
By cross balance machinery structural improvement plunger and cylinder body stress, while have backhaul function, cross balance by
Interior balance and outer balance are realized rotating connection by fixes sleeve and rotary shaft, and structure reliability is easy to processing, and reducing material will
Ask, widen selection range, be conducive to Optimized Matching plunger assembly design of friction pairs, simplied system structure to reduce system cost.
Overall piston shoes dish structure can realize the overall pitot-static supporting of piston shoes, reduce than pressure, and the space of design increases,
Improve the uneven wear phenomenon of single piston shoes, improve stability.
Backhaul defect is improved by frame for movement, cross balance is by interior balance and outer balance by fixes sleeve and rotary shaft
Realize rotating connection, simple structure is easy to processing, it is to avoid the addition of donkey pump, is conducive to simplied system structure, reduce system into
This.Using common valve plate flow, parts Standardization, convenient buying are made, and advantageously reduce the cost of Novel plunger pump.
Description of the drawings
Fig. 1 is a kind of generalized section of axial plunger pump of the embodiment of the present invention；
Fig. 2 is a kind of end view of axial plunger pump of the embodiment of the present invention；
Fig. 3 is a kind of axial plunger pump cylinder body of the embodiment of the present invention and cross balance connection diagram；
Fig. 4 is a kind of structural representation of axial plunger pump cross balance of the embodiment of the present invention；
Fig. 5 is a kind of profile of axial plunger pump cross balance of the embodiment of the present invention.
Reference：1st, outer balance；2nd, interior balance；3rd, interior balance fixes sleeve；4th, back casing；5th, outer balance fixed cover
Cylinder；6th, front piston shoes；7th, rear piston shoes；8th, cylinder body；9th, procapsid；10th, pump shaft；11st, valve plate；12nd, fixed plate；13rd, plunger assembly；
131st, plunger mat；132nd, plunger；133rd, plunger ball；14th, bearing assembly；15th, end cap；16th, sealing ring；17th, swash plate；18th, ten
Word balance；19th, rotary shaft；20th, inlet；21st, liquid outlet；22nd, piston shoes disk.
Specific embodiment
The embodiment of the present invention is described further referring to figs. 1 to Fig. 5.
A kind of axial plunger pump, including end cap 15, procapsid 9, back casing 4, pump shaft 10, valve plate 11, installed in back cover
Swash plate 17 and cylinder body 8 in body 4, end cap 15, procapsid 9, back casing 4 are sequentially fixedly connected with valve plate 11, and pump shaft 10 is rotated
Connection cylinder body 8, pump shaft 10 is gear shaft, by the gear driven on gear shaft between gear shaft and cylinder body 8, it is also possible to by flower
Key is connected drive, preferably gear shaft, has higher stability by gear engagement, and pump shaft 10 wears swash plate 17, back cover
It is additionally provided with body 4 in cross balance 18 and plunger assembly 13, cylinder body 8 and is provided with plunger hole, the one end of plunger assembly 13 is embedded at plunger
In hole, the other end of plunger assembly 13 connection cross balance 18, cross balance 18 is arranged with swash plate 17 in conflict；In plunger pump operation
When, form oil lamella between cross balance 18 and swash plate 17；
Cross balance 18 includes interior balance 2 and outer balance 1, and interior balance 2 rotates the outer pendulum of connection by interior balance fixes sleeve 3
Disk 1, outer balance 1 rotates connection cylinder body 8 by outer balance fixes sleeve 5, and the piston shoes for being embedded piston shoes are offered on interior balance 2
Hole, offers the piston shoes hole for being embedded piston shoes on interior balance 2, piston shoes hole is uniformly distributed on interior balance 2, and quantity is 9, sliding
, in setting is corresponded, piston shoes connect plunger assembly 13, and piston shoes can be along ten for boots, piston shoes hole, plunger assembly 13 and plunger hole
The axially reciprocating of word balance 18.Preferred version be interior balance 2 on be embedded with piston shoes disk 22, piston shoes hole position in piston shoes disk 22,
Piston shoes are embedded in piston shoes hole.A fixed plate 12 is connected with cylinder body 8, fixed plate 12 is arranged in annular, outer balance fixed cover
Cylinder 5 is embedded at the inwall of fixed plate 12, and outer balance fixes sleeve 5 can not relatively rotate with fixed plate 12, interior balance fixed cover
Cylinder 3 is embedded at outer balance 1, and interior balance fixes sleeve 3 and outer balance 1 can not relatively rotate.Interior balance 2 and outer balance 1 are equal
Rotary shaft 19 is connected with, rotary shaft 19 is embedded at respectively the outer outer wall of balance fixes sleeve 5 and the interior outer wall of balance fixes sleeve 3.It is interior
The rotary shaft 19 of balance 2 and the axis projections of 1 rotary shaft of outer balance 19 are mutually perpendicular to.It is respectively provided with two on interior balance 2 and outer balance 1 to turn
Moving axis 19, two rotary shafts 19 are coaxially disposed on interior balance 2, and two rotary shafts 19 are coaxially disposed on outer balance 1, and outer balance 1 leads to
Crossing rotary shaft 19 can swing in outer balance fixes sleeve 5 around vertical axis；Interior balance fixes sleeve 3 is threadedly coupled in outer balance
On 1, interior balance 2 can be swung in interior balance fixes sleeve 3 by rotary shaft 19 around horizontal axis, again can be with outer balance 1 around perpendicular
Straight axis swing.
Plunger assembly 13 includes plunger 132 and plunger mat 131, and plunger mat 131 is embedded with plunger hole and is slidably connected, plunger
132 two ends are integrally provided with plunger ball 133, and piston shoes coat plunger ball 133 of the plunger near the side of cross balance 18, post
Obturating plug 131 coats plunger away from the plunger ball 133 of the side of cross balance 18 and constitutes spherical hinge structure.Piston shoes include front piston shoes 6
With rear piston shoes 7, front piston shoes 6 and rear piston shoes 7 cladding plunger ball 133 and constitute spherical hinge structure.Front piston shoes 6 and rear piston shoes 7 set
The processing technique being wrapped by beneficial to plunger ball 133 is equipped with, facilitates it to process, in front and back piston shoes 7 can also be wholely set, by work
Process directly says that plunger ball 133 is embedded inside piston shoes, and bearing assembly 14 is provided with pump shaft 10, and bearing assembly 14 includes
Taper roll bearing, is sheathed on pump shaft 10 and in procapsid 9, and is compressed by drive end bearing bracket 15, also inlays in drive end bearing bracket 15
There is for Seal Oil liquid and prevents the sealing ring 16 of dust entrance.
It is connected with plunger assembly 13 by cross balance 18 by adopting above-mentioned technical proposal, swash plate 17, the two ends of plunger 132
There is spherical structure, stress is two power bar states, greatly reduces the radial force of plunger hole, damage so as to reduce friction
Lose, the operating pressure of axial plunger pump can be greatly improved, improve service life, improve efficiency, reduce material requirements, widen
The scope that material is selected.Be conducive to increasing the pivot angle of swash plate 17 simultaneously, the increase of the pivot angle of swash plate 17 is conducive to increasing plunger mat
131 backhaul distance, so as to increase the discharge capacity of plunger displacement pump.
The piston shoes disk 22 of the present invention inlays return plate of the prior art and piston shoes, piston shoes and plunger ball 133 for one
Body, always has some plungers 132 in force feed stroke, so as to piston shoes disk 22 is pressed on swash plate 17, by overall cunning in operation
Boots disk 22 makes the plunger backhaul in imbibition stroke, rear piston shoes 7 plunger 132 be assembled in piston shoes disk 22, improves plunger cunning
Boots spherical pair loosens, pulls the phenomenon of even fragmentation；Additionally, backhaul mode of the present invention is not required to the auxiliary of spring, it is to avoid because of bullet
Spring bears high-frequency alternating stress and makes the phenomenon of axial plunger pump life-span decline, and effectively overcomes lateral suffered by cylinder body 8
Power is acted on, and in particular for axial plunger pump, is not required to other return mechanisms, simplifies structure design.
By cross balance machinery structural improvement plunger 132 and the stress of cylinder body 8, while there is backhaul function, cross pendulum
Disk 18 is realized rotating connection by interior balance 2 and outer balance 1 by fixes sleeve and rotary shaft, and structure reliability is easy to processing, is reduced
Material requirements, widens selection range, is conducive to the design of friction pairs of Optimized Matching plunger assembly 13, simplied system structure to reduce system
System cost.
The overall structure of piston shoes disk 22 can realize the overall pitot-static supporting of piston shoes, reduce than pressure, and the space of design increases
Plus, improve the uneven wear phenomenon of single piston shoes, improve stability.
Backhaul defect is improved by frame for movement, cross balance 18 is by interior balance 2 and outer balance 1 is by fixes sleeve and turns
Moving axis 19 is realized rotating connection, and simple structure is easy to processing, it is to avoid the addition of donkey pump, is conducive to simplied system structure, reduces
System cost.Using the common flow of valve plate 11, parts Standardization, convenient buying are made, and advantageously reduce Novel plunger pump
Cost.
A kind of specific work process of axial plunger pump of the present invention：When pump shaft 10 drives cylinder body 8 to rotate together with, swash plate 17
Maintain static, cross balance 18 and cylinder body 8 are rotated together, be uniformly applied to active force by the swing of backhaul cross balance 18
On each piston shoes, plunger 132 is set to occur along cross balance 18 axially back to the plunger ball 133 and piston shoes of the one end of plunger mat 131
Reciprocating motion, while plunger mat 131 be subject to swash plate 17 to piston shoes, piston shoes to the active force of plunger 132, make plunger mat 131 exist
It is reciprocating in plunger hole on cylinder body 8, realize the backhaul of plunger 132.
When pump shaft 10 drives cylinder body 8 and cross balance 18 to rotate a circle, each each imbibition of plunger assembly 13, hydraulic fluid once,
With the continuous rotation of pump shaft 10, also continuously complete independently suction, the action of hydraulic fluid of each plunger assembly 13, so that plunger displacement pump is just
Often work.
The above is only the preferred embodiment of the present invention, and protection scope of the present invention is not limited merely to above-mentioned enforcement
Example, all technical schemes belonged under thinking of the present invention belong to protection scope of the present invention.It should be pointed out that for the art
Those of ordinary skill for, some improvements and modifications without departing from the principles of the present invention, these improvements and modifications
Should be regarded as protection scope of the present invention.
Claims (9)
1. a kind of axial plunger pump, including end cap, procapsid, back casing, pump shaft, valve plate, the swash plate in back cover body
And cylinder body, the end cap, procapsid, back casing be sequentially fixedly connected with valve plate, and the pump shaft rotates connection cylinder body, the pump
Axle wears swash plate, it is characterised in that cross balance and plunger assembly are additionally provided with the plunger displacement pump, in the cylinder body plunger is provided with
Hole, plunger assembly one end is embedded in plunger hole, plunger assembly other end connection cross balance, and the cross balance is in swash plate
Contradict and arrange；
The cross balance includes interior balance and outer balance, and the interior balance rotates the outer pendulum of connection by interior balance fixes sleeve
Disk, the outer balance rotates connection cylinder body by outer balance fixes sleeve, offers for being embedded piston shoes on the interior balance
Piston shoes hole, the piston shoes connect plunger assembly, and piston shoes can be along cross balance axially reciprocating；
Fixed plate is connected with the cylinder body, the outer balance fixes sleeve is embedded in fixed plate, the interior balance fixed cover
Cylinder is embedded at outer balance.
2. a kind of axial plunger pump according to claim 1, it is characterised in that be embedded with piston shoes disk on the interior balance,
On piston shoes disk, the piston shoes are embedded in piston shoes disk piston shoes hole position by piston shoes hole.
3. a kind of novel axial plunger pump according to claim 2, it is characterised in that the pump shaft is gear shaft, described
By the gear driven on gear shaft between gear shaft and cylinder body.
4. a kind of axial plunger pump according to claim 1, it is characterised in that the interior balance outer wall and outer balance outer wall
Rotary shaft is respectively connected with, the rotary shaft is embedded at respectively outer balance fixes sleeve and interior balance fixes sleeve.
5. a kind of axial plunger pump according to claim 1, it is characterised in that the interior balance rotary shaft and outer balance turn
Moving axis axis projections are mutually perpendicular to.
6. a kind of axial plunger pump according to claim 3, it is characterised in that be respectively provided with the interior balance and outer balance
Two rotary shafts, two rotary shafts are coaxially disposed on interior balance, and two rotary shafts are coaxially disposed on outer balance, and outer balance is by turning
Moving axis can swing in outer balance fixes sleeve around vertical axis, and interior balance can be around in interior balance fixes sleeve by rotary shaft
Horizontal axis swings, and can swing around vertical axis with outer balance again.
7. a kind of axial plunger pump according to claim 6, it is characterised in that the plunger assembly includes plunger and plunger
Seat, the plunger mat is embedded with plunger hole and is slidably connected, and the plunger two ends are integrally provided with plunger ball, the piston shoes bag
Cover plunger ball of the plunger near cross balance side, plunger ball of the plunger mat cladding plunger away from cross balance side
Head.
8. a kind of axial plunger pump according to claim 7, it is characterised in that the piston shoes include front piston shoes and rear cunning
Boots, the front piston shoes and rear piston shoes cladding plunger ball and composition spherical hinge structure.
9. a kind of axial plunger pump according to claim 1, it is characterised in that be provided with bearing assembly on the pump shaft,
The bearing assembly is made up of some taper roll bearings.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510442569.8A CN105114278B (en) | 2015-07-24 | 2015-07-24 | Axial plunger pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510442569.8A CN105114278B (en) | 2015-07-24 | 2015-07-24 | Axial plunger pump |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105114278A CN105114278A (en) | 2015-12-02 |
| CN105114278B true CN105114278B (en) | 2017-05-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510442569.8A Active CN105114278B (en) | 2015-07-24 | 2015-07-24 | Axial plunger pump |
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| CN (1) | CN105114278B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105626506A (en) * | 2016-02-20 | 2016-06-01 | 杭州佳巨机械配件有限公司 | Connector of plunger pump |
| CN108561284A (en) * | 2018-07-03 | 2018-09-21 | 无锡市圣诺高压泵科技有限公司 | A kind of oblique disk structure of axial plunger pump |
| CN116971981A (en) * | 2023-09-22 | 2023-10-31 | 黑龙江永研科技有限公司 | Remote monitoring system and method for working state of plunger pump |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2846089B2 (en) * | 1990-09-14 | 1999-01-13 | 株式会社日立製作所 | Variable displacement compressor |
| KR100413948B1 (en) * | 2001-08-03 | 2004-01-07 | 한국기계연구원 | Variable Displacement Type Axial Piston Unit |
| JP2005146968A (en) * | 2003-11-14 | 2005-06-09 | Zexel Valeo Climate Control Corp | Swash plate type compressor |
| JP5026995B2 (en) * | 2008-01-21 | 2012-09-19 | ナブテスコ株式会社 | Swash plate type hydraulic equipment |
| CN201739163U (en) * | 2010-08-20 | 2011-02-09 | 华中科技大学 | Guiding slip ring type sloping cam plate limiting mechanism |
| CN203067204U (en) * | 2012-11-07 | 2013-07-17 | 三一重工股份有限公司 | Swashplate type plunger pump and swashplate type plunger motor |
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2015
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| CN105114278A (en) | 2015-12-02 |
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