CN104405604A - Ultrahigh-pressure axial plunger pump - Google Patents
Ultrahigh-pressure axial plunger pump Download PDFInfo
- Publication number
- CN104405604A CN104405604A CN201410555846.1A CN201410555846A CN104405604A CN 104405604 A CN104405604 A CN 104405604A CN 201410555846 A CN201410555846 A CN 201410555846A CN 104405604 A CN104405604 A CN 104405604A
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- oil
- plunger
- spring
- fluid
- swash plate
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Abstract
The invention discloses an ultrahigh-pressure axial plunger pump. The ultrahigh-pressure axial plunger pump comprises a shell, a cylinder body, an oil outlet disc, a shaft, an oblique disc, a plunger pair and a return spring, wherein the shaft sequentially penetrates central through holes of the oil outlet disc and the cylinder body, and the tail end of the shaft is connected with the oblique disc through a flat key; the plunger pair consists of a piston shoe, a plunger, a check valve, an elastic retainer ring for a hole, a first elastic clamping ring, a second elastic clamping ring and a spring clamping seat, the plunger pair makes reciprocating movement under the effect of the oblique disc and the return spring, oil is continuously sucked from a plunger cavity in the cylinder body through an oil through hole in the plunger, and the oil is continuously discharged through the oil outlet disc. The ultrahigh-pressure axial plunger pump is ingenious in concept, small in size, light in weight, low in noise, long in service life and good in sealing performance under the situation of ultrahigh pressure.
Description
Technical field
The present invention relates to oil hydraulic pump technical field, relate to a kind of ultrahigh pressure axial plunger pump.
Background technique
Axial piston pump is the main power source of Modern hydraulic high-voltage drive, when the pressure in oil pump reaches more than 40MPa, just reaches ultrahigh pressure.The purposes of superpressure oil pump very extensive, be commonly used to the fields such as machine equipment, chemical industry, boats and ships, military engineering, Aeronautics and Astronautics, but because the force value of superpressure oil pump reaches more than 40MPa, therefore the superpressure oil pump produced must sustain this force value, even larger pressure.The domestic ability of there is no produces the ability of ultrahigh pressure axial plunger pump at present, whole dependence import, in order to solve superpressure pump problem, ultrahigh pressure axial plunger pump of the present invention is the innovative design carried out based on U. S. Patent (patent No. US 3514223) disclosed in 26 days Mays in 1970, on the basis of its existing axial piston pump, optimizing structure design, make plunger pump structure more rationally, simplify.
Summary of the invention
The object of the invention is for the deficiencies in the prior art, a kind of ultrahigh pressure axial plunger pump is provided.
The object of the invention is to be achieved through the following technical solutions: a kind of ultrahigh pressure axial plunger pump, comprises housing, cylinder body and oil-outlet disk, axle, swash plate, trunk piston set, retracting spring; Housing has filler opening; Housing, cylinder body and oil-outlet disk are tightly connected successively; Swash plate is arranged on enclosure interior by tapered roller bearing, and axle passes the central through bore of oil-outlet disk and cylinder body successively, and end is connected with swash plate by flat key;
Trunk piston set is made up of piston shoes, plunger, one-way valve, circlip for hole, the first elastic collar, the second elastic collar, spring stand, plunger is connected with piston shoes by the first elastic collar, spring stand is arranged on plunger by the second elastic collar, plunger surface has fluid through hole, have oil passage in plunger, fluid through hole communicates with oil passage; Described one-way valve is arranged in oil passage by circlip for hole; One-way valve is made up of the first steel ball, the first spring, spring seat; First spring one end mounts elastically, and the other end is connected with the first steel ball; Spring seat surface has fluid hole, and bottom has fluid chamber, and fluid hole and fluid chamber communicate;
Cylinder body has plunger cavity, and the plunger end of trunk piston set is arranged in plunger cavity, has spring groove outside plunger cavity, retracting spring is in compressive state always, one end is fixed in spring groove, and the other end is fixed on spring stand, and retracting spring gives the thrust that trunk piston set is adjacent to swash plate all the time; The piston shoes end of trunk piston set contacts with swash plate, and swash plate promotes trunk piston set and moves to plunger cavity direction.Swash plate is driven to rotate by flat key, trunk piston set moves reciprocatingly under the effect of swash plate and retracting spring, when trunk piston set is moved to swash plate direction, fluid flows into oil passage from fluid through hole, and under the pressure of fluid, the first steel ball compresses the first spring, move to spring seat direction, fluid, by the fluid hole on spring seat, enters into fluid chamber, is stored in plunger cavity; When trunk piston set is moved to plunger cavity direction, the fluid be stored in plunger cavity is pressed to oil-outlet disk by plunger.
Oil-outlet disk has out oil pocket, goes out oil pocket and communicate with plunger cavity, oil-outlet disk inside has oil discharge passage, and oil discharge passage goes out oil pocket with each and is connected; Oil outlet is had, oil outlet and oil discharge passage and go out oil pocket and communicate outside oil-outlet disk; Go out in oil pocket and be provided with one-way valve, described one-way valve is made up of the second spring, locating stud, the second steel ball, floating ring, and locating stud is arranged on out bottom oil pocket, and one end of the second spring is fixed on locating stud, and the other end is connected with the second steel ball; Floating ring is arranged on out oil pocket inside, and contacts with the second steel ball; When fluid presses to oil-outlet disk by plunger from plunger cavity, under the pressure of fluid, the second steel ball compresses the second spring, and to the motion of locating stud direction, fluid enters out oil pocket, by oil discharge passage, flows to oil outlet.
Further, be provided with needle bearing in the central through bore of described cylinder body, axle is connected with cylinder body by needle bearing.
Further, described axle and swash plate swash plate joint are provided with circlip for shaft.
The invention has the beneficial effects as follows: compact structure of the present invention, the mounting edge of former design cast housing is removed, make its volume less, reduce installing space.The structure of oil-outlet disk is optimized, former designing is sealed by auxiliary hole and the ball that rises the force feed oil outlet be connected relatively on food tray, the ring shaped oil passage redesigned as one-step casting is connected, eliminate processing technology hole and installation to rise ball sealing, processing technology difficulty is reduced, processing, manufacturing efficiency can be improved and reduce costs.Be skillfully constructed, by cylinder body larger for weight and oil-outlet disk by having carried out new design, the heart is all processed with the shoulder hole close with shaft diameter wherein, and the Zhou Congqi center of transferring power is passed, and make weight saving, overall construction design is reasonable.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
Fig. 2 is the structural representation of cylinder body;
Fig. 3 is the structural representation of trunk piston set;
Fig. 4 is the structural representation of plunger;
Fig. 5 is the structural representation of plunger inner spring seat;
Fig. 6 is the structural representation of oil-outlet disk;
Fig. 7 is the sectional view of oil-outlet disk;
In figure, housing 1, flat key 2, tapered roller bearing 3, axle 7, oil-outlet disk 8, circlip for shaft 9, swash plate 10, cylinder body 11, spring stand 12, needle bearing 13, retracting spring 14, plunger 15, piston shoes 16, first elastic collar 17, second elastic collar 18, first steel ball 19, first spring 20, spring seat 21, circlip for hole 22, second spring 23, locating stud 24, second steel ball 26, floating ring 27, fluid through hole 28, oil passage 29, fluid chamber 30, fluid hole 31, go out oil pocket 32, oil discharge passage 33.
Embodiment
A kind of ultrahigh pressure axial plunger pump, comprises housing 1, cylinder body 11 and oil-outlet disk 8, axle 7, swash plate 10, trunk piston set, retracting spring 14; Housing 1 has filler opening; Housing 1, cylinder body 11 and oil-outlet disk 8 are tightly connected successively, compact structure, are removed by the mounting edge of former design cast housing 1, make its volume less, reduce installing space.It is inner that swash plate 10 is arranged on housing 1 by tapered roller bearing 3, and axle 7 passes the central through bore of oil-outlet disk 8 and cylinder body 11 successively, and end is connected with swash plate 10 by flat key 2, makes the weight saving of plunger pump entirety.In addition, needle bearing (13) can also be installed in the central through bore of cylinder body (11), axle (7) is connected with cylinder body (11) by needle bearing (13), to reduce the friction between axle (7) and cylinder body (11), described axle (7) and swash plate swash plate (10) joint are provided with circlip for shaft (9), to ensure that axle 7 in axial direction moves, thus through swash plate (10), and top is on housing.
Trunk piston set is made up of piston shoes 16, plunger 15, one-way valve, circlip for hole 22, first elastic collar 17, second elastic collar 18, spring stand 12, plunger 15 is fixed by the first elastic collar 17 and piston shoes 16, spring stand 12 is arranged on plunger 15 by the second elastic collar 18, plunger 15 surface has fluid through hole 28, have oil passage 29 in plunger 15, fluid through hole 28 communicates with oil passage 29; Described one-way valve is arranged in oil passage 29 by circlip for hole 22; One-way valve is made up of the first steel ball 19, first spring 20, spring seat 21; First spring 20 one end is arranged on spring seat 21, and the other end is connected with the first steel ball 19; Spring seat 21 surface has fluid hole 31, and bottom has fluid chamber 30, and fluid hole 31 and fluid chamber 30 communicate;
Cylinder body 11 has plunger cavity, and the plunger end of trunk piston set is arranged in plunger cavity, has spring groove outside plunger cavity, retracting spring 14 is in compressive state always, one end is fixed in spring groove, and the other end is fixed on spring stand 12, and trunk piston set promotes to swash plate 10 direction by retracting spring 14; The piston shoes end of trunk piston set contacts with swash plate 10, and swash plate 10 promotes trunk piston set and moves to plunger cavity direction.Swash plate 10 is driven to rotate by flat key 2, trunk piston set moves reciprocatingly under the effect of swash plate 10 and retracting spring 14, when trunk piston set is moved to swash plate 10 direction, fluid flows into oil passage 29 from fluid through hole 28, and under the pressure of fluid, the first steel ball 19 compresses the first spring 20, move to spring seat 21 direction, fluid, by the fluid hole 31 on spring seat 21, enters into fluid chamber 30, is stored in plunger cavity; When moving to plunger cavity direction when trunk piston set, the fluid be stored in plunger cavity is pressed to oil-outlet disk 8 by plunger 15.
Oil-outlet disk 8 has out oil pocket, goes out oil pocket and communicate with plunger cavity, oil-outlet disk 8 inside has oil discharge passage, and oil discharge passage goes out oil pocket with each and is connected; Oil outlet is had, oil outlet and oil discharge passage and go out oil pocket and communicate outside oil-outlet disk; Go out in oil pocket and one-way valve is installed, described one-way valve is made up of the second spring 23, locating stud 24, second steel ball 26, floating ring 27, locating stud 24 is arranged on out bottom oil pocket, and one end of the second spring 23 is fixed on locating stud 24, and the other end is connected with the second steel ball 26; Floating ring 27 is arranged on out oil pocket inside, and contacts with the second steel ball 26; Former designing is sealed by auxiliary hole and the ball that rises the force feed oil outlet be connected by the design of oil-outlet disk 8 relatively on food tray 8, the ring shaped oil passage redesigned as one-step casting is connected, eliminate processing technology hole and installation to rise ball sealing, processing technology difficulty is reduced, processing, manufacturing efficiency can be improved and reduce costs.
When fluid presses to oil-outlet disk 8 by plunger 15 from plunger cavity, under the pressure of fluid, the second steel ball 26 compresses the second spring 23, and to the motion of locating stud 24 direction, fluid enters out oil pocket, by oil discharge passage, flows to oil outlet.
Claims (3)
1. a ultrahigh pressure axial plunger pump, is characterized in that, comprises housing (1), cylinder body (11) and oil-outlet disk (8), axle (7), swash plate (10), trunk piston set, retracting spring (14); (1) has filler opening to housing; Housing (1), cylinder body (11) and oil-outlet disk (8) are tightly connected successively; It is inner that swash plate (10) is arranged on housing (1) by tapered roller bearing (3), and axle (7) passes the central through bore of oil-outlet disk (8) and cylinder body (11) successively, and end is connected with swash plate (10) by flat key (2);
Trunk piston set is made up of piston shoes (16), plunger (15), one-way valve, circlip for hole (22), the first elastic collar (17), the second elastic collar (18), spring stand (12), plunger (15) is connected with piston shoes (16) by the first elastic collar (17), spring stand (12) is arranged on plunger (15) by the second elastic collar (18), plunger (15) surface has fluid through hole (28), have oil passage (29) in plunger (15), fluid through hole (28) communicates with oil passage (29); Described one-way valve is arranged in oil passage (29) by circlip for hole (22); One-way valve is made up of the first steel ball (19), the first spring (20), spring seat (21); First spring (20) one end is arranged on spring seat (21), and the other end is connected with the first steel ball (19); Spring seat (21) surface has fluid hole (31), and bottom has fluid chamber (30), and fluid hole (31) and fluid chamber (30) communicate;
(11) have plunger cavity to cylinder body, the plunger end of trunk piston set is arranged in plunger cavity, spring groove is had outside plunger cavity, retracting spring (14) is in compressive state always, one end is fixed in spring groove, the other end is fixed on spring stand (12), and trunk piston set promotes to swash plate (10) direction by retracting spring (14); The piston shoes end of trunk piston set contacts with swash plate (10), and swash plate (10) promotes trunk piston set and moves to plunger cavity direction; Swash plate (10) is driven to rotate by flat key (2), trunk piston set moves reciprocatingly under the effect of swash plate (10) and retracting spring (14), when trunk piston set is moved to swash plate (10) direction, fluid flows into oil passage (29) from fluid through hole (28), and under the pressure of fluid, the first steel ball (19) compresses the first spring (20), move to spring seat (21) direction, fluid, by the fluid hole (31) on spring seat (21), enters into fluid chamber (30), is stored in plunger cavity; When trunk piston set is moved to plunger cavity direction, the fluid be stored in plunger cavity is pressed to oil-outlet disk (8) by plunger (15); (8) have out oil pocket to oil-outlet disk, go out oil pocket and communicate with plunger cavity, and oil-outlet disk (8) inside has oil discharge passage, and oil discharge passage goes out oil pocket with each and is connected; Oil outlet is had, oil outlet and oil discharge passage and go out oil pocket and communicate outside oil-outlet disk; Go out in oil pocket and one-way valve is installed, described one-way valve is made up of the second spring (23), locating stud (24), the second steel ball (26), floating ring (27), locating stud (24) is arranged on out bottom oil pocket, one end of second spring (23) is fixed on locating stud (24), and the other end is connected with the second steel ball (26); Floating ring (27) is arranged on out oil pocket inside, and contacts with the second steel ball (26); When fluid presses to oil-outlet disk (8) by plunger (15) from plunger cavity, under the pressure of fluid, the second steel ball (26) compresses the second spring (23), and to the motion of locating stud (24) direction, fluid enters out oil pocket, by oil discharge passage, flows to oil outlet.
2. ultrahigh pressure axial plunger pump according to claim 1, is characterized in that, is provided with needle bearing (13) in the central through bore of described cylinder body (11), and axle (7) is connected with cylinder body (11) by needle bearing (13).
3. ultrahigh pressure axial plunger pump according to claim 1, is characterized in that, described axle (7) and swash plate swash plate (10) joint are provided with circlip for shaft (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410555846.1A CN104405604A (en) | 2014-10-20 | 2014-10-20 | Ultrahigh-pressure axial plunger pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410555846.1A CN104405604A (en) | 2014-10-20 | 2014-10-20 | Ultrahigh-pressure axial plunger pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104405604A true CN104405604A (en) | 2015-03-11 |
Family
ID=52643258
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410555846.1A Pending CN104405604A (en) | 2014-10-20 | 2014-10-20 | Ultrahigh-pressure axial plunger pump |
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| CN (1) | CN104405604A (en) |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105818389A (en) * | 2016-05-07 | 2016-08-03 | 浙江大学 | Self-sucking biological 3D printing nozzle device and method thereof |
| CN108105083A (en) * | 2017-11-30 | 2018-06-01 | 青岛力克川液压机械有限公司 | A kind of plunger part of high-pressure plunger type hydraulic pump |
| CN108644105A (en) * | 2018-06-12 | 2018-10-12 | 台州巨力工具有限公司 | A kind of check valve and hydraulic tool for hydraulic tool |
| CN108678921A (en) * | 2017-11-30 | 2018-10-19 | 青岛力克川液压机械有限公司 | A kind of high-pressure plunger type hydraulic pump |
| CN109441758A (en) * | 2018-12-17 | 2019-03-08 | 贵阳力泉液压技术有限公司 | A kind of hydraulic pump with decrease of noise functions |
| CN109441750A (en) * | 2018-09-30 | 2019-03-08 | 江苏金陵智造研究院有限公司 | A kind of axial plunger pump |
| WO2020000417A1 (en) * | 2018-06-28 | 2020-01-02 | 潍柴动力股份有限公司 | Anti-eccentric wear plunger and slipper assembly, plunger pump and plunger motor |
| CN111133190A (en) * | 2017-09-05 | 2020-05-08 | V·拉比 | Hydraulic piston with valves for cooling and lubrication |
| CN112392719A (en) * | 2020-11-20 | 2021-02-23 | 四川省机械技术服务中心 | High-efficient compact plunger pump plunger device |
| CN112879256A (en) * | 2021-03-10 | 2021-06-01 | 焦秀智 | Experimental device capable of simulating reservoir pressure |
| CN113339221A (en) * | 2021-07-14 | 2021-09-03 | 杭州同禾数控液压有限公司 | Ultrahigh-pressure miniature swash plate plunger pump and using method thereof |
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| US3514223A (en) * | 1968-08-19 | 1970-05-26 | Applied Power Ind Inc | Hydraulic pump |
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| CN101418784A (en) * | 2008-11-28 | 2009-04-29 | 重庆跃进机械厂有限公司 | Positive and negative rotating axial plunger pump |
| CN202833001U (en) * | 2012-09-27 | 2013-03-27 | 北京工业大学 | Swash plate type rotary valve flow distributing pure water plunger pump |
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2014
- 2014-10-20 CN CN201410555846.1A patent/CN104405604A/en active Pending
Patent Citations (6)
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| US2940323A (en) * | 1956-08-24 | 1960-06-14 | Ford Motor Co | Pump |
| US2941475A (en) * | 1957-05-24 | 1960-06-21 | Dynex Inc | Hydraulic pump |
| US3514223A (en) * | 1968-08-19 | 1970-05-26 | Applied Power Ind Inc | Hydraulic pump |
| CN2869373Y (en) * | 2006-03-02 | 2007-02-14 | 陆伯武 | No-piston-shoes-and-oil-distributing-disk axial plunger pump |
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Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105818389A (en) * | 2016-05-07 | 2016-08-03 | 浙江大学 | Self-sucking biological 3D printing nozzle device and method thereof |
| CN111133190A (en) * | 2017-09-05 | 2020-05-08 | V·拉比 | Hydraulic piston with valves for cooling and lubrication |
| CN108105083A (en) * | 2017-11-30 | 2018-06-01 | 青岛力克川液压机械有限公司 | A kind of plunger part of high-pressure plunger type hydraulic pump |
| CN108678921A (en) * | 2017-11-30 | 2018-10-19 | 青岛力克川液压机械有限公司 | A kind of high-pressure plunger type hydraulic pump |
| CN108644105A (en) * | 2018-06-12 | 2018-10-12 | 台州巨力工具有限公司 | A kind of check valve and hydraulic tool for hydraulic tool |
| CN108644105B (en) * | 2018-06-12 | 2023-06-30 | 台州巨力工具股份有限公司 | One-way valve for hydraulic tool and hydraulic tool |
| WO2020000417A1 (en) * | 2018-06-28 | 2020-01-02 | 潍柴动力股份有限公司 | Anti-eccentric wear plunger and slipper assembly, plunger pump and plunger motor |
| CN109441750A (en) * | 2018-09-30 | 2019-03-08 | 江苏金陵智造研究院有限公司 | A kind of axial plunger pump |
| CN109441758A (en) * | 2018-12-17 | 2019-03-08 | 贵阳力泉液压技术有限公司 | A kind of hydraulic pump with decrease of noise functions |
| CN109441758B (en) * | 2018-12-17 | 2024-04-02 | 贵阳力泉液压技术有限公司 | Hydraulic pump with noise reduction function |
| CN112392719A (en) * | 2020-11-20 | 2021-02-23 | 四川省机械技术服务中心 | High-efficient compact plunger pump plunger device |
| CN112392719B (en) * | 2020-11-20 | 2022-04-19 | 四川省机械技术服务中心有限责任公司 | High-efficient compact plunger pump plunger device |
| CN112879256A (en) * | 2021-03-10 | 2021-06-01 | 焦秀智 | Experimental device capable of simulating reservoir pressure |
| CN113339221A (en) * | 2021-07-14 | 2021-09-03 | 杭州同禾数控液压有限公司 | Ultrahigh-pressure miniature swash plate plunger pump and using method thereof |
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Application publication date: 20150311 |
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