CN105317645A - Opposite end-face type valve-controlled axial plunger pump - Google Patents
Opposite end-face type valve-controlled axial plunger pump Download PDFInfo
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- CN105317645A CN105317645A CN201510320844.9A CN201510320844A CN105317645A CN 105317645 A CN105317645 A CN 105317645A CN 201510320844 A CN201510320844 A CN 201510320844A CN 105317645 A CN105317645 A CN 105317645A
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- cylinder barrel
- plunger
- sliding gear
- flat valve
- piston pump
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Abstract
The invention discloses an opposite end-face type valve-controlled axial plunger pump. The opposite end-face type valve-controlled axial plunger pump comprises a left cylinder barrel, a right cylinder barrel, a left plunger and a right plunger. The left cylinder barrel and the right cylinder barrel are arranged oppositely. The left plunger and the right plunger are in slide fit with the left cylinder barrel and the right cylinder barrel respectively to form pressure cavities. An end face cam element is arranged between the left cylinder barrel and the right cylinder barrel, and the two ends of the end face cam element are each provided with a work face. The work faces are used for driving the left plunger and the right plunger to reciprocate. Therefore, geometrical pulsation and rotation unbalance of the plunger pump during work can be weakened, and the pulsation property and the stress state of the plunger pump are improved.
Description
Technical field
The present invention relates to plunger pump field, particularly relate to a kind of opposed end-surface type Flat valve axial piston pump.
Background technique
Plunger pump is an important device of hydraulic system.It relies on plunger to-and-fro motion in cylinder body, makes the volume of seal operation cavity volume change to realize oil suction, force feed.Structurally divide axial type and the large class of radial two, axial piston pump also can be divided into slant plate type and two kinds, inclined shaft type.The advantages such as wherein swash plate plunger pump has compact structure, efficiency is high, delivery pressure is high, reliable operation, Flow-rate adjustment are convenient, are widely used in hydraulic press, engineering machinery, Aero-Space and boats and ships.But there is following problem in the course of the work in cam-type axial piston pump: 1. its oblique disk structure can cause geometry to pulse and rotation imbalance, causes larger vibration noise; 2. congenital structural imperfection causes the poor vibration performance of plunger pump and flow pulsation performance; 3. in plunger pump, active force is complicated, and the influence factor of power is many, lowers efficiency; 4. in plunger pump, part bonded to each other is friction pair connection, too relies on lubrication property, reduces reliability.
For the problems referred to above, both at home and abroad mostly on the basis retaining swash plate plunger pump this basic pattern, the dynamic performance of pump, lubrication property and modular construction optimal design three aspects are studied.Domestic have Zhejiang University's Fluid-transmission and control the piston shoes hydrostatic lubrication elasticity theory analysis carried out of National Key Laboratory and experimental study; The rainbow body that one-tenth is strong, Li Shuze etc. is carried out and the research of thrust plate analysis of Lubricating Characteristic; The housing structure optimizing research that Zeng Xiangrong, Li little Ning etc. carry out; The matching pairs in water hydraulic piston pump Study on Lubrication that Deng Bin, Liu Henglong etc. carry out.Foreign study is leading with Japan, the U.S., more stresses verification experimental verification.But above-mentioned research does not fundamentally solve swash plate pump Problems existing.
Therefore, for overcoming the above problems, needing one can weaken geometry pulsation and rotation imbalance, improving pulsation performance and force-bearing situation, a kind of Novel plunger pump pattern of raising the efficiency---opposed end-surface type Flat valve axial piston pump.
Summary of the invention
In view of this, the object of this invention is to provide one and can weaken geometry pulsation and rotation imbalance, improve pulsation performance and force-bearing situation, the opposed end-surface type Flat valve axial piston pump of raising the efficiency;
Opposed end-surface type Flat valve axial piston pump of the present invention, comprises opposite disposed left cylinder barrel and right cylinder barrel and is slidably matched with described left cylinder barrel and right cylinder barrel respectively and the left plunger in mineralization pressure chamber and right plunger; The end cam component that two ends have the working surface for promoting described left plunger and right plunger reciprocates is provided with between described left cylinder barrel and right cylinder barrel;
Further, described left plunger and right plunger outer end are all connected with rolling element, and the working surface of described end cam component coordinates with being formed between described rolling element to roll;
Further, described left plunger and right plunger outer end have been rotatably connected left sliding gear and right sliding gear respectively, and described end cam component two ends working surface is respectively equipped with the left side tooth engaged with left sliding gear and the right side tooth engaged with right sliding gear;
Further, the working surface at described end cam component two ends is arranged in parallel;
Further, described left sliding gear and right sliding gear are equipped with multiple and circumferentially even
Distribution and the phase angle of i-th left sliding gear or right sliding gear be
Further, be provided with the stator for carrying out axial limiting to left cylinder barrel and right cylinder barrel between described left cylinder barrel and right cylinder barrel, be provided with slide rail vertically in described stator and this slide rail is combined with the left slider be fixedly connected with left plunger outer end and the right slide block be fixedly connected with right plunger outer end;
Opposed end-surface type Flat valve axial piston pump of the present invention also comprises Flat valve device and water inlet and outlet drainage component; Described Flat valve device comprises the suction valve and delivery valve that are arranged at left cylinder barrel and right cylinder barrel; Described water inlet and outlet drainage component comprises the left end cap that is individually fixed in described left cylinder barrel and right cylinder barrel outer end and right end cap, is sheathed on the housing of left cylinder barrel and right cylinder barrel outer wall, is arranged at the water inlet drainage disc of housing sidewall and is arranged at the water outlet drainage disc of right end cap outer end; Be equipped with water outlet valve port in described left end cap and right end cap, be provided with the water outlet drainage tube be communicated with described water outlet valve port in described water outlet drainage disc, described suction valve is communicated with the water inlet drainage tube in water inlet drainage disc.
The invention has the beneficial effects as follows: opposed end-surface type Flat valve axial piston pump of the present invention, motor equal power device is adopted to be passed to the end cam component with opposed working surface by input shaft rotary motion, be provided with retracting spring between left plunger with left cylinder barrel and by this retracting spring, left plunger outer end contacted with end cam component working surface all the time, and by drive plunger to-and-fro motion under the working surface of end cam and the acting in conjunction of retracting spring, in like manner, the right plunger also to-and-fro motion under the opposite side working surface and retracting spring acting in conjunction of end cam on right side, the plunger at two ends works simultaneously, thus the geometry avoided pulsation and rotation imbalance, improve pulsation performance and force-bearing situation, improve pump oil efficiency.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the invention will be further described:
Fig. 1 is structural representation of the present invention;
Fig. 2 is the structural representation of end cam component of the present invention.
Embodiment
Fig. 1 is structural representation of the present invention; Fig. 2 is the structural representation of end cam component 12 of the present invention.The opposed end-surface type Flat valve axial piston pump of the present embodiment, comprises opposite disposed left cylinder barrel 3 and right cylinder barrel 16 and is slidably matched with described left cylinder barrel 3 and right cylinder barrel 16 respectively and the left plunger 9 in mineralization pressure chamber and right plunger 15, be provided with two ends between described left cylinder barrel 3 and right cylinder barrel 16 and there is end cam component 12 for promoting described left plunger 9 and the reciprocating working surface of right plunger 15, opposed end-surface type Flat valve axial piston pump of the present invention, motor equal power device is adopted to be passed to the end cam component 12 with opposed working surface by input shaft 7 rotary motion, be provided with retracting spring 8 between left plunger 9 with left cylinder barrel 3 and by this retracting spring 8, left plunger 9 outer end contacted with end cam component 12 working surface all the time, and by drive plunger to-and-fro motion under the working surface of end cam and the acting in conjunction of retracting spring 8, in like manner, the right plunger 15 also to-and-fro motion under the opposite side working surface and retracting spring 8 acting in conjunction of end cam on right side, the plunger at two ends works simultaneously, thus the geometry avoided pulsation and rotation imbalance, improve pulsation performance and force-bearing situation, improve pump oil efficiency.
In the present embodiment, described left plunger 9 and right plunger 15 outer end are all connected with rolling element, the working surface of described end cam component 12 coordinates with being formed between described rolling element to roll, because rolling friction has the little advantage of frictional force, therefore utilize rolling element significantly can reduce frictional loss, improve the pump oil efficiency of plunger pump.
In the present embodiment, described left plunger 9 and right plunger 15 outer end have been rotatably connected left sliding gear 10 and right sliding gear 14 respectively, described end cam component 12 two ends working surface is respectively equipped with the left side tooth 19 engaged with left sliding gear 10 and the right side tooth 19 engaged with right sliding gear 14, motor band driven input shaft 7 rotates, by spline, rotary motion is passed to end cam component 12, be that gear pair is connected and the left sliding gear 10 being distributed in the left and right sides with it, right sliding gear 14 starts to rotate thereupon, wherein, left plunger 9 and right plunger 15 are subject to the engaging force of end cam component 12 simultaneously and launch conjugation engagement driving.
In the present embodiment, the working surface at described end cam component 12 two ends is arranged in parallel, the crest of end cam component 12 two ends working surface and wave trough position are interlocked, so the multiple plungers be made up of left end plunger and right-hand member plunger are to presenting integrity to-and-fro motion, namely left end plunger and right-hand member plunger motion direction are consistent, therefore, it is possible to the vibration produced when significantly reducing plunger pump work and noise.
In the present embodiment, described left sliding gear 10 and right sliding gear 14 are equipped with multiple and are uniformly distributed circumferentially and the phase angle of i-th left sliding gear 10 or right sliding gear 14 is
wherein z is the quantity of monolateral plunger, can not be 3-9 not etc.
In the present embodiment, the stator 2 for carrying out axial limiting to left cylinder barrel 3 and right cylinder barrel 16 is provided with between described left cylinder barrel 3 and right cylinder barrel 16, be provided with slide rail vertically in described stator 2 and this slide rail is combined with the left slider 13 be fixedly connected with left plunger 9 outer end and the right slide block 13 be fixedly connected with right plunger 15 outer end, the slide rail in stator 2 coordinates with slide block 13 that to be used for carrying out circumference to left sliding gear 10 or right sliding gear 14 spacing.
Opposed end-surface type Flat valve axial piston pump of the present invention also comprises Flat valve device and water inlet and outlet drainage component; Described Flat valve device comprises the suction valve 4 and delivery valve 6 that are arranged at left cylinder barrel 3 and right cylinder barrel 16; Described water inlet and outlet drainage component comprises the left end cap 5 that is individually fixed in described left cylinder barrel 3 and right cylinder barrel 16 outer end and right end cap 17, is sheathed on the housing 1 of left cylinder barrel 3 and right cylinder barrel 16 outer wall, is arranged at the water inlet drainage disc 11 of housing 1 sidewall and is arranged at the water outlet drainage disc 18 of right end cap 17 outer end; Water outlet valve port is equipped with in described left end cap 5 and right end cap 17, the water outlet drainage tube be communicated with described water outlet valve port is provided with in described water outlet drainage disc 18, described suction valve 4 is communicated with the water inlet drainage tube in water inlet drainage disc 11, on the left of plunger pump, left end plunger does reciprocating linear motion in the cylinder holes of left end cylinder barrel, make the cyclically-varying of plunger cavity volume, produce pressure, cause suction valve 4 and delivery valve 6 periodically closed.Under the effect of hydraulic pressure, the water in water intake is drawn to plunger cavity through shell and the drainage tube in water inlet drainage sleeve, and is depressed in the drainage tube of left end capping and water outlet drainage disc 18, and then is forced out water outlet.Complete water suction and setting-out, finally form the water with certain pressure, be supplied to follow-up hydraulic equipment.Water suction in like manner on the right side of known plunger pump and Drive stroke.The order of the plunger water suction that the left and right sides is corresponding and setting-out is just the opposite.This is the working principle of opposed end-tooth 19 formula Flat valve axial piston pump.
What finally illustrate is, above embodiment is only in order to illustrate technological scheme of the present invention and unrestricted, although with reference to preferred embodiment to invention has been detailed description, those of ordinary skill in the art is to be understood that, can modify to technological scheme of the present invention or equivalent replacement, and not departing from aim and the scope of technical solution of the present invention, it all should be encompassed in the middle of right of the present invention.
Claims (7)
1. an opposed end-surface type Flat valve axial piston pump, is characterized in that: comprise opposite disposed left cylinder barrel and right cylinder barrel and be slidably matched with described left cylinder barrel and right cylinder barrel respectively and the left plunger in mineralization pressure chamber and right plunger; The end cam component that two ends have the working surface for promoting described left plunger and right plunger reciprocates is provided with between described left cylinder barrel and right cylinder barrel.
2. the opposed end-surface type Flat valve axial piston pump belonging to claim 1, is characterized in that: described left plunger and right plunger outer end are all connected with rolling element, and the working surface of described end cam component coordinates with being formed between described rolling element to roll.
3. the opposed end-surface type Flat valve axial piston pump belonging to claim 1, it is characterized in that: described left plunger and right plunger outer end have been rotatably connected left sliding gear and right sliding gear respectively, and described end cam component two ends working surface is respectively equipped with the left side tooth engaged with left sliding gear and the right side tooth engaged with right sliding gear.
4. the opposed end-surface type Flat valve axial piston pump belonging to claim 1, is characterized in that: the working surface at described end cam component two ends is arranged in parallel.
5. the opposed end-surface type Flat valve axial piston pump belonging to claim 3, is characterized in that: described left sliding gear and right sliding gear are equipped with multiple and are uniformly distributed circumferentially and the phase angle of i-th left sliding gear or right sliding gear is
wherein z is the quantity of left plunger or right plunger.
6. the opposed end-surface type Flat valve axial piston pump belonging to claim 5, it is characterized in that: between described left cylinder barrel and right cylinder barrel, be provided with the stator for carrying out axial limiting to left cylinder barrel and right cylinder barrel, be provided with slide rail vertically in described stator and this slide rail is combined with the left slider be fixedly connected with left plunger outer end and the right slide block be fixedly connected with right plunger outer end.
7. the opposed end-surface type Flat valve axial piston pump belonging to claim 1, is characterized in that: also comprise Flat valve device and water inlet and outlet drainage component; Described Flat valve device comprises the suction valve and delivery valve that are arranged at left cylinder barrel and right cylinder barrel; Described water inlet and outlet drainage component comprises the left end cap that is individually fixed in described left cylinder barrel and right cylinder barrel outer end and right end cap, is sheathed on the housing of left cylinder barrel and right cylinder barrel outer wall, is arranged at the water inlet drainage disc of housing sidewall and is arranged at the water outlet drainage disc of right end cap outer end; Be equipped with water outlet valve port in described left end cap and right end cap, be provided with the water outlet drainage tube be communicated with described water outlet valve port in described water outlet drainage disc, described suction valve is communicated with the water inlet drainage tube in water inlet drainage disc.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510320844.9A CN105317645B (en) | 2015-06-12 | 2015-06-12 | Opposed end-surface type Flat valve axial plunger pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510320844.9A CN105317645B (en) | 2015-06-12 | 2015-06-12 | Opposed end-surface type Flat valve axial plunger pump |
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| Publication Number | Publication Date |
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| CN105317645A true CN105317645A (en) | 2016-02-10 |
| CN105317645B CN105317645B (en) | 2017-09-05 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510320844.9A Active CN105317645B (en) | 2015-06-12 | 2015-06-12 | Opposed end-surface type Flat valve axial plunger pump |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105863980A (en) * | 2016-04-14 | 2016-08-17 | 燕山大学 | Axial plunger pump realizing noise reduction by indexing angles |
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| CN1894504A (en) * | 2003-12-20 | 2007-01-10 | Itw有限公司 | Pump |
| US20100111721A1 (en) * | 2008-09-25 | 2010-05-06 | Idex Health & Science Llc | Dual piston pump assembly with anti-rotation guide rails |
| CN201526426U (en) * | 2009-09-16 | 2010-07-14 | 西南石油大学 | Novel symmetrical axial plunger pump |
| CN103089562A (en) * | 2013-02-04 | 2013-05-08 | 方亮 | Camshaft type plunger pump |
| CN203394694U (en) * | 2013-08-13 | 2014-01-15 | 中国石油化工集团公司 | Opposed axial plunger pump |
| CN103967731A (en) * | 2014-05-09 | 2014-08-06 | 西安交通大学 | End cam driving type axial plunger pump carrying out oil distribution by adopting flow distribution ring |
| CN103967802A (en) * | 2014-05-06 | 2014-08-06 | 华中科技大学 | Plunger type hydraulic motor pump internally integrated with front-mounted pump |
| CN103994044A (en) * | 2014-05-14 | 2014-08-20 | 苏州农业职业技术学院 | Crank connecting rod transmission type hydraulic pump with linear motor |
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2015
- 2015-06-12 CN CN201510320844.9A patent/CN105317645B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1894504A (en) * | 2003-12-20 | 2007-01-10 | Itw有限公司 | Pump |
| US20100111721A1 (en) * | 2008-09-25 | 2010-05-06 | Idex Health & Science Llc | Dual piston pump assembly with anti-rotation guide rails |
| CN201526426U (en) * | 2009-09-16 | 2010-07-14 | 西南石油大学 | Novel symmetrical axial plunger pump |
| CN103089562A (en) * | 2013-02-04 | 2013-05-08 | 方亮 | Camshaft type plunger pump |
| CN203394694U (en) * | 2013-08-13 | 2014-01-15 | 中国石油化工集团公司 | Opposed axial plunger pump |
| CN103967802A (en) * | 2014-05-06 | 2014-08-06 | 华中科技大学 | Plunger type hydraulic motor pump internally integrated with front-mounted pump |
| CN103967731A (en) * | 2014-05-09 | 2014-08-06 | 西安交通大学 | End cam driving type axial plunger pump carrying out oil distribution by adopting flow distribution ring |
| CN103994044A (en) * | 2014-05-14 | 2014-08-20 | 苏州农业职业技术学院 | Crank connecting rod transmission type hydraulic pump with linear motor |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105863980A (en) * | 2016-04-14 | 2016-08-17 | 燕山大学 | Axial plunger pump realizing noise reduction by indexing angles |
| CN105863980B (en) * | 2016-04-14 | 2018-02-09 | 燕山大学 | A kind of Index angle noise reduction axial plunger pump |
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| Publication number | Publication date |
|---|---|
| CN105317645B (en) | 2017-09-05 |
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