CN105114278A - Novel axial plunger pump - Google Patents
Novel axial plunger pump Download PDFInfo
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- CN105114278A CN105114278A CN201510442569.8A CN201510442569A CN105114278A CN 105114278 A CN105114278 A CN 105114278A CN 201510442569 A CN201510442569 A CN 201510442569A CN 105114278 A CN105114278 A CN 105114278A
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- 238000006073 displacement reaction Methods 0.000 abstract 1
- 238000000034 method Methods 0.000 description 9
- 239000000463 material Substances 0.000 description 6
- 230000000694 effects Effects 0.000 description 4
- 230000007246 mechanism Effects 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
- 239000012530 fluid Substances 0.000 description 3
- 238000005213 imbibition Methods 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 238000007789 sealing Methods 0.000 description 3
- 230000007547 defect Effects 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
- 230000009471 action Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000007812 deficiency 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
- 239000000446 fuel Substances 0.000 description 1
- 210000003734 kidney Anatomy 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 230000010349 pulsation Effects 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 230000001052 transient effect Effects 0.000 description 1
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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 oil hydraulic pump field, more particularly, it relates to a kind of novel axial plunger pump.
Background technique
Pump is dynamical element and the core parts of pressure system, therefore has and important meaning its design and researchp.Pump structure form mainly comprises plunger type, blade type, gear type, and the sealing effect of blade type and gear type pump is poor, and volumetric efficiency is low, leaks serious when working pressure improves.The crucial friction pair of three couples of conventional plunger pump structure comprises plunger and cylinder holes, piston shoes and swash plate, thrust plate and cylinder body end face, it is all face contact, therefore sealing effect is relatively better, higher volumetric efficiency can be ensured under the operating mode of and low-viscosity media higher in pressure ratio, and relative to blade type and gear type pump, friction pair has lower PV value.Therefore, existing pump have employed the structure of plunger type mostly.
The pump of plunger-type structure can be divided into axial piston structure and radial plunger type structure according to the arrangement of plunger.The specific power of radial mode plunger pump is large, and is subject to the restriction in circumferentially space, only for the occasion of low speed high torque; The pump of axial piston structure reduces wearing and tearing and power loss therefore most of plunger pump employing axial piston structure of friction pair.
Axial piston pump utilizes the plunger volume-variation that parallel to-and-fro motion produces in the cylinder bore of cylinder body to carry out work.During work, drive main spindle drives cylinder body to rotate, and in the process that cylinder body rotates a circle, slides on the plunger in cylinder bore under the effect of swash plate, does a to-and-fro motion, realize an oil suction and force feed.When plunger is in force feed stroke, swash plate is close to and is promoted plunger assembly, and the high pressure oil in plunger ejects by plunger assembly.Due to swash plate squeezing rod plug assembly at a certain angle, cause plunger and cylinder body radial pressure larger.The numerical value of radial pressure directly affects the rated pressure of pump, life-span and efficiency; But when plunger is in oil suction stroke, plunger cavity internal pressure is negative pressure, be not enough to plunger is stretched out, plunger can not automated backhaul, causes axial piston pump suction capacity poor, even can cause strong cavitation cavitation phenomenon time serious, produce larger flow, pressure pulsation, hydraulic shock and noise, cause pair in axial piston pump, the serious friction wearing and tearing of trunk piston set and Slipper coupling, reduce the working life of axial piston pump greatly.
The return mechanism of current plunger pump is primarily of return plate backhaul, retracting spring backhaul; fixed gap backhaul, flying height backhaul etc. can be divided into again according to its working principle; but all inevitably there is the problem of phase mutual friction between return plate with piston shoes; for solving the backhaul friction problem of plunger, usually following methods can be adopted: the backhaul of (1) service pump fuel feeding.Plunger is protruding under the effect of service pump oil compensation pressure, and now, axial piston pump without suction capacity, and additionally need increase slippage pump in hydraulic system, adds system cost.(2) mounting spring in each plunger cavity, utilizes spring thrust to be pressed on swash plate by plunger.Now spring bears alternating stress, there is serious fatigue problem, greatly shortens the working life of axial piston pump.(3) central spring is adopted to compress return plate.Owing to being subject to the restriction in axial piston pump space, spring design difficulty, can only provide partial plunger reverberation matrix method, cannot solve plunger backhaul problem completely.(4) piston shoes to be clipped between return plate and swash plate and to have certain gap, and return plate is fixedly connected with swash plate, i.e. mechanical forced backhaul.This structure is comparatively complicated, makes swash plate larger, in addition, Slipper coupling needs to bear high-frequency alternating tension and compression stress, Slipper coupling loosens, pull even cracked phenomenon happens occasionally, and the piston shoes fragment pulled can cause plunger pump transient failure, has a strong impact on the safe and stable operation of whole hydraulic system.
On market, application number is that the patent document of CN201310171205.1 discloses a kind of axial plunger pump return-stroke mechanism, its plunger is stepped, the wall of cylinder body is axially arranged with stepped cylinder holes along cylinder body, this stepped cylinder holes is spaced apart along the circumference of cylinder body, plunger is placed in stepped cylinder holes, the enlarged diameter section of plunger and the enlarged diameter section Spielpassung of stepped cylinder holes, the reduced diameter section of plunger and the reduced diameter section Spielpassung of stepped cylinder holes; When plunger moves back and forth in stepped cylinder holes, all the time an oil pocket is formed between the bottom surface of the end face of the reduced diameter section of plunger and the reduced diameter section of stepped cylinder holes, all the time form an annular region between the internal face of the outer wall of the reduced diameter section of plunger and the enlarged diameter section of stepped cylinder holes, each described oil pocket is communicated with a kidney slot of cylinder body correspondingly; On the wall of cylinder body, compartment of terrain offers the first oil duct, and each described oil pocket is communicated with an annular region by first oil duct correspondingly, is provided with liquid resistance in each first oil duct; Each annular region is interconnected.This technological scheme arranges for improving backhaul problem of the prior art by stepped plunger and plunger hole, but stepped plunger and plunger hole processing need to ensure coaxality, its difficulty is larger, and higher grade of accuracy is needed for both cooperations in plunger pump, increase difficulty of processing further, secondly stepped plunger its structural strength compared with original plunger has been lowered, the situation that plunger pump may cause plunger to rupture when running, affects the safe operation of whole hydraulic system.
Summary of the invention
For the deficiency that prior art exists, the object of the present invention is to provide the Novel plunger pump that a kind of frictional loss is less, efficiency is higher.
For achieving the above object, the invention provides following technological scheme: a kind of novel axial plunger pump, comprise end cap, front case, rear case, pump shaft, thrust plate, be arranged on the swash plate in rear case and cylinder body, described end cap, front case, rear case is fixedly connected with in turn with thrust plate, described pump shaft is rotationally connected cylinder body, described pump shaft wears swash plate, cross balance and plunger assembly is also provided with in described plunger pump, plunger hole is provided with in described cylinder body, plunger assembly one end is embedded in plunger hole, the plunger assembly the other end connects cross balance, described cross balance and swash plate are arranged in conflicting,
Described cross balance comprises interior balance and outer balance, described interior balance is rotationally connected outer balance by interior balance fixed muffle, described outer balance is rotationally connected cylinder body by outer balance fixed muffle, described interior balance offers the piston shoes hole for being embedded piston shoes, described piston shoes attachment post plug assembly, piston shoes can along cross balance axially reciprocating.
The present invention is set to further: described interior balance is embedded with piston shoes dish, and piston shoes hole is positioned on piston shoes dish, and described piston shoes are embedded in piston shoes dish by piston shoes hole.
The present invention is set to further: described cylinder body is connected with fixed plate, and described outer balance fixed muffle is embedded in fixed plate, and described interior balance fixed muffle is embedded at outer balance.
The present invention is set to further: described pump shaft is gear shaft, by the gear driven on gear shaft between described gear shaft and cylinder body.
The present invention is set to further: described interior balance outer wall and outer balance outer wall are all connected with rotatingshaft, and described rotatingshaft is embedded at outer balance fixed muffle and interior balance fixed muffle respectively.
The present invention is set to further: described interior balance rotatingshaft is mutually vertical with outer balance rotatingshaft axis projections.
The present invention is set to further: described interior balance and outer balance all arrange two rotatingshafts, on interior balance, two rotatingshafts are coaxially arranged, on outer balance, two rotatingshafts are coaxially arranged, outer balance is by swinging around vertical axis in rotatingshaft outside balance fixed muffle, interior balance can be swung around horizontal axis in interior balance fixed muffle by rotatingshaft, can swing again with outer balance around vertical axis.
The present invention is set to further: described plunger assembly comprises plunger and plunger mat, described plunger mat and plunger hole are embedded and are slidably connected, described plunger two ends are all integrally provided with plunger ball, the plunger ball of the coated plunger of described piston shoes near cross balance side, the coated plunger of described plunger mat is away from the plunger ball of cross balance side.
The present invention is set to further: described piston shoes comprise front piston shoes and rear piston shoes, described front piston shoes and the coated plunger ball of rear piston shoes and form spherical hinge structure.
The present invention is set to further: described pump shaft is provided with bearing unit, and described bearing unit is made up of some tapered roller bearings.
By adopting technique scheme, swash plate is connected with plunger assembly by cross balance, all there is spherical structure at plunger two ends, and stressed is two power bar states, greatly reduces the radial force of plunger hole, thus decrease frictional loss, significantly can improve the working pressure of axial piston pump, improve working life, raise the efficiency, reduce material requirements, widen the scope of Material selec-tion.Be conducive to the pivot angle increasing swash plate, the increase of swash plate pivot angle is conducive to the backhaul distance increasing plunger mat, thus strengthens plunger pump delivery simultaneously.
Return plate of the prior art and piston shoes, piston shoes and plunger ball are embedded as a whole by piston shoes dish of the present invention, some plungers are always had to be in force feed stroke in operation, thus piston shoes dish is pressed on swash plate, the plunger backhaul being in imbibition stroke is made by overall piston shoes dish, plunger is assemblied in piston shoes dish by rear piston shoes, improves plunger piston slippery boots spherical pair and loosens, pulls even cracked phenomenon; In addition, backhaul mode of the present invention does not need the auxiliary of spring, avoid the phenomenon being declined because spring bears high-frequency alternating stress in the axial piston pump life-span, and the lateral forces effectively overcome suffered by cylinder body, especially for axial piston pump, do not need other return mechanisms, simplify the structure design.
Plunger is improved and cylinder body is stressed by cross balance mechanical structure, there is backhaul function simultaneously, cross balance is realized being rotationally connected by fixed muffle and rotatingshaft by interior balance and outer balance, structure is reliable, is convenient to processing, reduces material requirements, widen selection range, be conducive to Optimized Matching plunger assembly design of friction pairs, simplied system structure, reduce system cost.
Overall piston shoes dish structure can realize the overall pitot-static supporting of piston shoes, reduces specific pressure, and the space of design increases, and improves the uneven wear phenomenon of single piston shoes, improves stability.
Improve backhaul defect by mechanical structure, cross balance is realized being rotationally connected by fixed muffle and rotatingshaft by interior balance and outer balance, and structure is simple, is convenient to processing, avoids adding of service pump, be conducive to simplied system structure, reduces system cost.Adopt common thrust plate flow, make parts Standardization, convenient buying, and be conducive to the cost reducing Novel plunger pump.
Accompanying drawing explanation
Fig. 1 is the generalized section of a kind of novel axial plunger pump of the embodiment of the present invention;
Fig. 2 is the end view of a kind of novel axial plunger pump of the embodiment of the present invention;
Fig. 3 is a kind of novel axial plunger pump cylinder body of the embodiment of the present invention and cross balance connection diagram;
Fig. 4 is the structural representation of a kind of novel axial plunger pump cross of embodiment of the present invention balance;
Fig. 5 is the sectional drawing of a kind of novel axial plunger pump cross of embodiment of the present invention balance.
Reference character: 1, outer balance; 2, interior balance; 3, interior balance fixed muffle; 4, rear case; 5, outer balance fixed muffle; 6, front piston shoes; 7, rear piston shoes; 8, cylinder body; 9, front case; 10, pump shaft; 11, thrust plate; 12, fixed plate; 13, plunger assembly; 131, plunger mat; 132, plunger; 133, plunger ball; 14, bearing unit; 15, end cap; 16, seal ring; 17, swash plate; 18, cross balance; 19, rotatingshaft; 20, liquid entering hole; 21, liquid outlet; 22, piston shoes dish.
Embodiment
Referring to figs. 1 through Fig. 5, the embodiment of the present invention is described further.
A kind of novel axial plunger pump, comprise end cap 15, front case 9, rear case 4, pump shaft 10, thrust plate 11, be arranged on the swash plate 17 in rear case 4 and cylinder body 8, end cap 15, front case 9, rear case 4 is fixedly connected with in turn with thrust plate 11, pump shaft 10 is rotationally connected cylinder body 8, pump shaft 10 is gear shaft, by the gear driven on gear shaft between gear shaft and cylinder body 8, also can be connected drive by spline, be preferably gear shaft, by gears meshing, there is higher stability, pump shaft 10 wears swash plate 17, cross balance 18 and plunger assembly 13 is also provided with in rear case 4, plunger hole is provided with in cylinder body 8, plunger assembly 13 one end is embedded in plunger hole, plunger assembly 13 the other end connects cross balance 18, cross balance 18 is arranged in conflicting with swash plate 17, when plunger pump runs, between cross balance 18 and swash plate 17, form oil lamella,
Cross balance 18 comprises interior balance 2 and outer balance 1, interior balance 2 is rotationally connected outer balance 1 by interior balance fixed muffle 3, outer balance 1 is rotationally connected cylinder body 8 by outer balance fixed muffle 5, interior balance 2 offers the piston shoes hole for being embedded piston shoes, interior balance 2 offers the piston shoes hole for being embedded piston shoes, piston shoes hole is uniformly distributed on interior balance 2, quantity is 9, piston shoes, piston shoes hole, plunger assembly 13 and plunger hole are all arranged in one_to_one corresponding, piston shoes attachment post plug assembly 13, piston shoes can along cross balance 18 axially reciprocating.Preferred version is that interior balance 2 is embedded with piston shoes dish 22, and piston shoes hole is positioned at piston shoes dish 22, and piston shoes are embedded in piston shoes hole.Cylinder body 8 is connected with a fixed plate 12, fixed plate 12 is arranged in ring, outer balance fixed muffle 5 is embedded at fixed plate 12 inwall, outer balance fixed muffle 5 can not relatively rotate with fixed plate 12, interior balance fixed muffle 3 is embedded at outer balance 1, and interior balance fixed muffle 3 and outer balance 1 can not relatively rotate.Interior balance 2 and outer balance 1 are all connected with rotatingshaft 19, and rotatingshaft 19 is embedded at outer balance fixed muffle 5 outer wall and interior balance fixed muffle 3 outer wall respectively.Interior balance 2 rotatingshaft 19 is mutually vertical with outer balance 1 rotatingshaft 19 axis projections.Interior balance 2 and outer balance 1 all arrange two rotatingshafts 19, and on interior balance 2, two rotatingshafts 19 are coaxially arranged, and on outer balance 1, two rotatingshafts 19 are coaxially arranged, and outer balance 1 is by swinging around vertical axis in rotatingshaft 19 outside balance fixed muffle 5; Interior balance fixed muffle 3 is threaded outside on balance 1, and interior balance 2 can be swung around horizontal axis in interior balance fixed muffle 3 by rotatingshaft 19, can swing again with outer balance 1 around vertical axis.
Plunger assembly 13 comprises plunger 132 and plunger mat 131, plunger mat 131 and plunger hole are embedded and are slidably connected, plunger 132 two ends are all integrally provided with plunger ball 133, the coated plunger of piston shoes near the plunger ball 133 of cross balance 18 side, the coated plunger of plunger mat 131 away from cross balance 18 side plunger ball 133 and form spherical hinge structure.Piston shoes comprise front piston shoes 6 and rear piston shoes 7, front piston shoes 6 and the coated plunger ball 133 of rear piston shoes 7 and form spherical hinge structure.Front piston shoes 6 and rear piston shoes 7 be provided with the processing technology being beneficial to plunger ball 133 and being wrapped by, facilitate it to process, front and back piston shoes 7 also can be wholely set, directly say that plunger ball 133 is embedded into piston shoes inside by technological method, pump shaft 10 is provided with bearing unit 14, bearing unit 14 comprises tapered roller bearing, is sheathed on pump shaft 10 and is positioned at front case 9, and compressed by front cover 15, be also inlaid with in front cover 15 for the seal ring 16 sealing fluid He prevent dust from entering.
By adopting technique scheme, swash plate 17 is connected with plunger assembly 13 by cross balance 18, all there is spherical structure at plunger 132 two ends, and stressed is two power bar states, greatly reduces the radial force of plunger hole, thus decrease frictional loss, significantly can improve the working pressure of axial piston pump, improve working life, raise the efficiency, reduce material requirements, widen the scope of Material selec-tion.Be conducive to the pivot angle increasing swash plate 17, the increase of swash plate 17 pivot angle is conducive to the backhaul distance increasing plunger mat 131, thus strengthens plunger pump delivery simultaneously.
Return plate of the prior art and piston shoes, piston shoes and plunger ball 133 are embedded as a whole by piston shoes dish 22 of the present invention, some plungers 132 are always had to be in force feed stroke in operation, thus piston shoes dish 22 is pressed on swash plate 17, the plunger backhaul being in imbibition stroke is made by overall piston shoes dish 22, plunger 132 is assemblied in piston shoes dish 22 by rear piston shoes 7, improves plunger piston slippery boots spherical pair and loosens, pulls even cracked phenomenon; In addition, backhaul mode of the present invention does not need the auxiliary of spring, avoid the phenomenon being declined because spring bears high-frequency alternating stress in the axial piston pump life-span, and the lateral forces effectively overcome suffered by cylinder body 8, especially for axial piston pump, do not need other return mechanisms, simplify the structure design.
Plunger 132 is improved and cylinder body 8 is stressed by cross balance mechanical structure, there is backhaul function simultaneously, cross balance 18 is realized being rotationally connected by fixed muffle and rotatingshaft by interior balance 2 and outer balance 1, structure is reliable, is convenient to processing, reduces material requirements, widen selection range, be conducive to Optimized Matching plunger assembly 13 design of friction pairs, simplied system structure, reduce system cost.
Overall piston shoes dish 22 structure can realize the overall pitot-static supporting of piston shoes, reduces specific pressure, and the space of design increases, and improves the uneven wear phenomenon of single piston shoes, improves stability.
Improve backhaul defect by mechanical structure, cross balance 18 is realized being rotationally connected by fixed muffle and rotatingshaft 19 by interior balance 2 and outer balance 1, and structure is simple, is convenient to processing, avoids adding of service pump, be conducive to simplied system structure, reduces system cost.Adopt common thrust plate 11 flow, make parts Standardization, convenient buying, and be conducive to the cost reducing Novel plunger pump.
The specific works process of a kind of novel axial plunger pump of the present invention: when pump shaft 10 drives cylinder body 8 together to rotate, swash plate 17 maintains static, cross balance 18 rotates together with cylinder body 8, by the swing of backhaul cross balance 18, active force is uniformly applied on each piston shoes, make plunger 132, back to the plunger ball 133 of plunger mat 131 one end and piston shoes, the to-and-fro motion along cross balance 18 axis occur, plunger mat 131 is subject to swash plate 17 to piston shoes simultaneously, piston shoes are to the active force of plunger 132, make in the plunger hole of plunger mat 131 on cylinder body 8 reciprocating, realize plunger 132 backhaul.
When pump shaft 10 drives cylinder body 8 and cross balance 18 to rotate a circle, each imbibition of each plunger assembly 13, hydraulic fluid once, along with the continuous rotation of pump shaft 10, each plunger assembly 13 also continuously complete independently inhale, the action of hydraulic fluid, thus plunger pump is normally worked.
The above is only the preferred embodiment of the present invention, protection scope of the present invention be not only confined to above-described embodiment, and all technological schemes belonged under thinking of the present invention all belong to protection scope of the present invention.It should be pointed out that for those skilled in the art, some improvements and modifications without departing from the principles of the present invention, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (10)
1. a novel axial plunger pump, comprise end cap, front case, rear case, pump shaft, thrust plate, be arranged on swash plate in rear case and cylinder body, described end cap, front case, rear case are fixedly connected with in turn with thrust plate, described pump shaft is rotationally connected cylinder body, described pump shaft wears swash plate, it is characterized in that, cross balance and plunger assembly is also provided with in described plunger pump, plunger hole is provided with in described cylinder body, plunger assembly one end is embedded in plunger hole, the plunger assembly the other end connects cross balance, and described cross balance and swash plate are arranged in conflicting;
Described cross balance comprises interior balance and outer balance, described interior balance is rotationally connected outer balance by interior balance fixed muffle, described outer balance is rotationally connected cylinder body by outer balance fixed muffle, described interior balance offers the piston shoes hole for being embedded piston shoes, described piston shoes attachment post plug assembly, piston shoes can along cross balance axially reciprocating.
2. a kind of novel axial plunger pump according to claim 1, is characterized in that, described interior balance is embedded with piston shoes dish, and piston shoes hole is positioned on piston shoes dish, and described piston shoes are embedded in piston shoes dish by piston shoes hole.
3. a kind of novel axial plunger pump according to claim 1 and 2, is characterized in that, described cylinder body is connected with fixed plate, and described outer balance fixed muffle is embedded in fixed plate, and described interior balance fixed muffle is embedded at outer balance.
4. a kind of novel axial plunger pump according to claim 3, is characterized in that, described pump shaft is gear shaft, by the gear driven on gear shaft between described gear shaft and cylinder body.
5. a kind of novel axial plunger pump according to claim 1, is characterized in that, described interior balance outer wall and outer balance outer wall are all connected with rotatingshaft, and described rotatingshaft is embedded at outer balance fixed muffle and interior balance fixed muffle respectively.
6. a kind of novel axial plunger pump according to claim 3, is characterized in that, described interior balance rotatingshaft is mutually vertical with outer balance rotatingshaft axis projections.
7. a kind of novel axial plunger pump according to claim 4, it is characterized in that, described interior balance and outer balance all arrange two rotatingshafts, on interior balance, two rotatingshafts are coaxially arranged, on outer balance, two rotatingshafts are coaxially arranged, outer balance is by swinging around vertical axis in rotatingshaft outside balance fixed muffle, and interior balance can be swung around horizontal axis in interior balance fixed muffle by rotatingshaft, can swing again with outer balance around vertical axis.
8. a kind of novel axial plunger pump according to claim 7, it is characterized in that, described plunger assembly comprises plunger and plunger mat, described plunger mat and plunger hole are embedded and are slidably connected, described plunger two ends are all integrally provided with plunger ball, the plunger ball of the coated plunger of described piston shoes near cross balance side, the coated plunger of described plunger mat is away from the plunger ball of cross balance side.
9. a kind of novel axial plunger pump according to claim 8, is characterized in that, described piston shoes comprise front piston shoes and rear piston shoes, described front piston shoes and the coated plunger ball of rear piston shoes and form spherical hinge structure.
10. a kind of novel axial plunger pump according to claim 1, is characterized in that, described pump shaft is provided with bearing unit, and described bearing unit is made up of some tapered roller 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 |
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| CN105114278A true CN105114278A (en) | 2015-12-02 |
| CN105114278B CN105114278B (en) | 2017-05-03 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510442569.8A Active CN105114278B (en) | 2015-07-24 | 2015-07-24 | Axial plunger pump |
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Cited By (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 |
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| US5231914A (en) * | 1990-09-14 | 1993-08-03 | Hitachi, Ltd. | Variable displacement compressor |
| CN1407256A (en) * | 2001-08-03 | 2003-04-02 | 韩国机械研究院 | Tilted variable axial piston device |
| EP1693567A1 (en) * | 2003-11-14 | 2006-08-23 | Valeo Thermal Systems Japan Corporation | Swash plate-type compressor |
| JP2009167992A (en) * | 2008-01-21 | 2009-07-30 | Nabtesco Corp | Swash plate type liquid pressure device |
| 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
- 2015-07-24 CN CN201510442569.8A patent/CN105114278B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5231914A (en) * | 1990-09-14 | 1993-08-03 | Hitachi, Ltd. | Variable displacement compressor |
| CN1407256A (en) * | 2001-08-03 | 2003-04-02 | 韩国机械研究院 | Tilted variable axial piston device |
| EP1693567A1 (en) * | 2003-11-14 | 2006-08-23 | Valeo Thermal Systems Japan Corporation | Swash plate-type compressor |
| JP2009167992A (en) * | 2008-01-21 | 2009-07-30 | Nabtesco Corp | Swash plate type liquid pressure device |
| 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 |
Cited By (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 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105114278B (en) | 2017-05-03 |
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