CN105317645B - Opposed end-surface type Flat valve axial plunger pump - Google Patents

Opposed end-surface type Flat valve axial plunger pump Download PDF

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Publication number
CN105317645B
CN105317645B CN201510320844.9A CN201510320844A CN105317645B CN 105317645 B CN105317645 B CN 105317645B CN 201510320844 A CN201510320844 A CN 201510320844A CN 105317645 B CN105317645 B CN 105317645B
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cylinder
plunger
balladeur train
opposed
flat valve
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CN105317645A (en
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林超
赵相路
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Chongqing University
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Chongqing University
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Abstract

The opposed end-surface type Flat valve axial plunger pump of the present invention, including opposite disposed left cylinder cylinder and right cylinder cylinder and the left plunger and right plunger that are slidably matched and are formed respectively pressure chamber with left cylinder cylinder and right cylinder cylinder;There is the edge cam component for being used for promoting the left plunger and the reciprocating working face of right plunger provided with two ends between the left cylinder cylinder and right cylinder cylinder, so as to weaken geometry pulsation and the rotation imbalance during plunger pump work, improve the pulsation performance and force-bearing situation of plunger pump.

Description

Opposed end-surface type Flat valve axial plunger pump
Technical field
The present invention relates to plunger pump field, more particularly to a kind of opposed end-surface type Flat valve axial plunger pump.
Background technology
Plunger pump is an important device of hydraulic system.It is moved back and forth by plunger in cylinder body, makes seal operation The volume of cavity volume changes to realize oil suction, force feed.It is divided to axial type and the major class of radial two in structure, axial plunger pump is also Two kinds of slant plate type and inclined shaft type can be divided into.Wherein swash plate plunger pump has compact conformation, efficiency high, output pressure height, work Reliably, the advantages of Flow-rate adjustment facilitates, is widely used in hydraulic press, engineering machinery, Aero-Space and ship.But, tiltedly There is problems with the course of the work in disc type axial plunger pump:1. its oblique disk structure can cause geometry to be pulsed and rotate uneven Weighing apparatus, causes larger vibration noise;2. congenital fault of construction causes the poor vibration performance of plunger pump and flow pulsation performance; 3. active force is complicated in plunger pump, and the influence factor of power is more, reduces efficiency;4. part bonded to each other is friction pair in plunger pump Connection, is excessively relied on lubrication property, reduces reliability.
In view of the above-mentioned problems, both at home and abroad mostly on the basis of swash plate plunger pump this basic pattern is retained, to pump Dynamic property, three aspects of lubrication property and modular construction optimization design are studied.The country have Zhejiang University's Fluid-transmission and Control the analysis of piston shoes hydrostatic lubrication elasticity theory and experimental study that National Key Laboratory carries out;That is opened into strong, Li Shuze etc. The rainbow body of exhibition and valve plate analysis of Lubricating Characteristic research;The housing structure optimizing research of the developments such as Zeng Xiangrong, Lee little Ning;Deng Bin, The matching pairs in water hydraulic piston pump Study on Lubrication of the developments such as Liu Henglong.Foreign study is leading with Japan, the U.S., more stresses experiment and tests Card.However, the studies above does not solve the problem of swash plate pump is present fundamentally.
Therefore, for solution problem above, it is necessary to which one kind can weaken geometry pulsation and rotation imbalance, improvement pulsation performance With force-bearing situation, a kind of efficient Novel plunger pump pattern is put forward --- opposed end-surface type Flat valve axial plunger pump.
The content of the invention
In view of this, geometry pulsation and rotation imbalance can be weakened it is an object of the invention to provide one kind, improve pulsation Performance and force-bearing situation, carry efficient opposed end-surface type Flat valve axial plunger pump;
The opposed end-surface type Flat valve axial plunger pump of the present invention, including opposite disposed left cylinder cylinder and right cylinder cylinder and point The left plunger and right plunger of pressure chamber are not slidably matched and formed with left cylinder cylinder and right cylinder cylinder;The left cylinder cylinder and right cylinder cylinder Between have provided with two ends and be used to promote the edge cam component of the left plunger and the reciprocating working face of right plunger;
Further, the left plunger and right plunger outer end are respectively connected with rolling element, the working face of the edge cam component Formed to roll between the rolling element and coordinated;
Further, the left plunger and right plunger outer end are rotatably connected respectively left balladeur train and right balladeur train, The edge cam component two ends working face be respectively equipped with the left side tooth that is engaged with left balladeur train and with right balladeur train The right side tooth of engagement;
Further, the working face at the edge cam component two ends is arranged in parallel;
Further, the left balladeur train and right balladeur train are equipped with multiple and circumferentially uniform
The phase angle of distribution and i-th of left balladeur train or right balladeur train is
Further, it is provided with and determines for carrying out axial limiting to left cylinder cylinder and right cylinder cylinder between the left cylinder cylinder and right cylinder cylinder Be combined with vertically provided with slide rail and the slide rail in son, the stator left slider that is fixedly connected with left plunger outer end and with the right side The right sliding block that plunger outer end is fixedly connected;
The opposed end-surface type Flat valve axial plunger pump of the present invention also includes Flat valve device and Inlet and outlet water drainage component; The Flat valve device includes the inlet valve and discharge van for being arranged at left cylinder cylinder and right cylinder cylinder;The Inlet and outlet water drainage component includes It is individually fixed in the left cylinder cylinder and left end cap and right end cap, the shell for being sheathed on left cylinder cylinder and right cylinder drum outer wall of right cylinder cylinder outer end Body, the water inlet drainage disc for being arranged at housing sidewall and the water outlet drainage disc for being arranged at right end cap outer end;The left end cap and the right side It is equipped with end cap provided with the water outlet drainage tube connected with the water outlet valve port in water outlet valve port, the water outlet drainage disc, it is described Inlet valve is connected with the water inlet drainage tube in water inlet drainage disc.
The beneficial effects of the invention are as follows:The opposed end-surface type Flat valve axial plunger pump of the present invention, it is dynamic using motor etc. Power apparatus passes to the edge cam component with opposed working face by input shaft rotary motion, between left plunger and left cylinder cylinder It is provided with retracting spring and is contacted left plunger outer end with edge cam component working face all the time by the retracting spring, and leads to Cross under the working face of edge cam and the collective effect of retracting spring and drive piston reciprocation motion, similarly, the right plunger on right side Opposite side working face in edge cam and reciprocating motion under retracting spring collective effect, the plunger at two ends work simultaneously, so that The geometry pulsation avoided and rotation imbalance, improve pulsation performance and force-bearing situation, improve pump oil efficiency.
Brief description of the drawings
The invention will be further described with reference to the accompanying drawings and examples:
Fig. 1 is structural representation of the invention;
Fig. 2 is the structural representation of the edge cam component of the present invention.
Embodiment
Fig. 1 is structural representation of the invention;Fig. 2 is the structural representation of the edge cam component 12 of the present invention.This reality Apply the opposed end-surface type Flat valve axial plunger pump of example, including opposite disposed left cylinder cylinder 3 and right cylinder cylinder 16 and respectively with institute State left cylinder cylinder 3 and right cylinder cylinder 16 is slidably matched and formed the left plunger 9 and right plunger 15 of pressure chamber;The left cylinder cylinder 3 and right cylinder There is the edge cam structure for being used for promoting the left plunger 9 and the reciprocating working face of right plunger 15 between cylinder 16 provided with two ends Part 12;The opposed end-surface type Flat valve axial plunger pump of the present invention, is rotated by input shaft 7 using motor equal power device and transported It is dynamic to pass to the edge cam component 12 with opposed working face, it is provided with retracting spring 8 simultaneously between left plunger 9 and left cylinder cylinder 3 The left outer end of plunger 9 is contacted with the working face of edge cam component 12 all the time by the retracting spring 8, and passes through edge cam Working face and driving piston reciprocation motion under the collective effect of retracting spring 8, similarly, the right plunger 15 on right side is also in edge cam Opposite side working face and the collective effect of retracting spring 8 under move back and forth, the plunger at two ends works simultaneously, so that the geometry avoided Pulsation and rotation imbalance, improve pulsation performance and force-bearing situation, improve pump oil efficiency.
In the present embodiment, the left plunger 9 and the outer end of right plunger 15 are respectively connected with rolling element, the edge cam component 12 Working face and the rolling element between formed roll coordinate, because rolling friction has the advantages that frictional force is small, thus utilize Rolling element can significantly reduce frictional dissipation, improve the pump oil efficiency of plunger pump.
In the present embodiment, the left plunger 9 and the outer end of right plunger 15 are rotatably connected have left balladeur train 10 and the right side respectively Balladeur train 14, the two ends working face of edge cam component 12 is respectively equipped with the left side tooth 19 engaged with left balladeur train 10 And the right side tooth 19 engaged with right balladeur train 14, motor band driven input shaft 7 rotate, rotary motion is passed by spline Edge cam component 12 is passed, is connected with it in gear pair and is distributed in the left balladeur train 10 of the left and right sides, right balladeur train 14 start to rotate with, wherein, left plunger 9 and right plunger 15 are deployed conjugation by the engagement force of edge cam component 12 simultaneously Engaged transmission.
In the present embodiment, the working face at the two ends of edge cam component 12 is arranged in parallel, edge cam component 12 The crest of two ends working face interlocks with wave trough position, so the multiple plungers being made up of left end plunger and right-hand member plunger are to presenting Globality is moved back and forth, i.e., left end plunger is consistent with right-hand member plunger motion direction, therefore, it is possible to which plunger pump is greatly lowered The vibration produced during work and noise.
In the present embodiment, the left balladeur train 10 and right balladeur train 14 be equipped with it is multiple and be uniformly distributed circumferentially and The phase angle of i-th left balladeur train 10 or right balladeur train 14 isWherein z is unilateral plunger Quantity, can be 3-9.
In the present embodiment, being provided between the left cylinder cylinder 3 and right cylinder cylinder 16 is used to carry out axle to left cylinder cylinder 3 and right cylinder cylinder 16 It is provided with slide rail vertically to spacing stator 2, in the stator 2 and the slide rail is combined with what is be fixedly connected with the left outer end of plunger 9 Slide rail in left slider 13 and the right sliding block 13 being fixedly connected with the outer end of right plunger 15, stator 2 and sliding block 13 coordinate for pair Left balladeur train 10 or right balladeur train 14 carry out circumferential spacing.
The opposed end-surface type Flat valve axial plunger pump of the present invention also includes Flat valve device and Inlet and outlet water drainage component; The Flat valve device includes the inlet valve 4 and discharge van 6 for being arranged at left cylinder cylinder 3 and right cylinder cylinder 16;The Inlet and outlet water drainage group Part includes being individually fixed in the left end cap 5 and right end cap 17 of 16 outer ends of the left cylinder cylinder 3 and right cylinder cylinder, is sheathed on 3 and of left cylinder cylinder Right cylinder cylinder 16 outer walls housing 1, be arranged at the water inlet drainage disc 11 of the side wall of housing 1 and be arranged at the water outlet of the outer end of right end cap 17 Drainage disc 18;Be equipped with the left end cap 5 and right end cap 17 in water outlet valve port, the water outlet drainage disc 18 be provided with it is described go out The water outlet drainage tube of water valve mouthful connection, the inlet valve 4 is connected with the water inlet drainage tube in water inlet drainage disc 11, left with plunger pump Exemplified by side, left end plunger does reciprocating linear motion in the cylinder holes of left end cylinder barrel so that plunger cavity volume cyclically-varying, produces Pressure, causes inlet valve 4 and discharge van 6 periodically to close.In the presence of hydraulic pressure, the water in water inlet is by shell and water inlet Drainage tube in drainage sleeve is drawn to plunger cavity, and is depressed into the drainage tube of left end capping and water outlet drainage disc 18, and then is pressed Go out delivery port.Water suction and pressure water are completed, eventually forming the water with certain pressure, there is provided to follow-up hydraulic test.Similarly may be used Know the water suction on the right side of plunger pump and Drive stroke.The corresponding plunger water suction in the left and right sides is with pressing the order of water just the opposite.This For the operation principle of the opposed formula Flat valve axial plunger pump of end-tooth 19.
Finally illustrate, the above embodiments are merely illustrative of the technical solutions of the present invention and it is unrestricted, although with reference to compared with The present invention is described in detail good embodiment, it will be understood by those within the art that, can be to skill of the invention Art scheme is modified or equivalent substitution, and without departing from the objective and scope of technical solution of the present invention, it all should cover at this Among the right of invention.

Claims (6)

1. a kind of opposed end-surface type Flat valve axial plunger pump, it is characterised in that:Including opposite disposed left cylinder cylinder and right cylinder cylinder And the left plunger and right plunger of pressure chamber are slidably matched and formed respectively with left cylinder cylinder and right cylinder cylinder;Left cylinder cylinder and There is the edge cam structure for being used for promoting the left plunger and the reciprocating working face of right plunger between right cylinder cylinder provided with two ends Part;The left plunger and right plunger outer end are rotatably connected respectively left balladeur train and right balladeur train, the edge cam Component two ends working face is respectively equipped with the left side tooth engaged with left balladeur train and the right side engaged with right balladeur train Tooth.
2. the opposed end-surface type Flat valve axial plunger pump according to belonging to claim 1, it is characterised in that:The left plunger and the right side Plunger outer end is respectively connected with rolling element, is formed between the working face and the rolling element of the edge cam component and rolls cooperation.
3. the opposed end-surface type Flat valve axial plunger pump according to belonging to claim 1, it is characterised in that:The edge cam structure The working face at part two ends is arranged in parallel.
4. the opposed end-surface type Flat valve axial plunger pump according to belonging to claim 2, it is characterised in that:The left balladeur train It is equipped with multiple with right balladeur train and is uniformly distributed circumferentially and the phase angle of i-th of left balladeur train or right balladeur train isWherein z is the quantity of left plunger or right plunger.
5. the opposed end-surface type Flat valve axial plunger pump according to belonging to claim 4, it is characterised in that:The left cylinder cylinder and the right side The stator for being used for that axial limiting to be carried out to left cylinder cylinder and right cylinder cylinder is provided between cylinder barrel, in the stator vertically provided with slide rail and The slide rail is combined with the left slider being fixedly connected with left plunger outer end and the right sliding block being fixedly connected with right plunger outer end.
6. the opposed end-surface type Flat valve axial plunger pump according to belonging to claim 1, it is characterised in that:Also include Flat valve to fill Put and Inlet and outlet water drainage component;The Flat valve device includes the inlet valve and discharge van for being arranged at left cylinder cylinder and right cylinder cylinder; The Inlet and outlet water drainage component is including being individually fixed in the left end cap and right end cap of the left cylinder cylinder and right cylinder cylinder outer end, being sheathed on Left cylinder cylinder and right cylinder drum outer wall housing, be arranged at the water inlet drainage disc of housing sidewall and be arranged at the water outlet of right end cap outer end Drainage disc;The left end cap is provided with and the water outlet valve port with being equipped with right end cap in water outlet valve port, the water outlet drainage disc The water outlet drainage tube of connection, the inlet valve is connected with the water inlet drainage tube in water inlet drainage disc.
CN201510320844.9A 2015-06-12 2015-06-12 Opposed end-surface type Flat valve axial plunger pump Active CN105317645B (en)

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Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105863980B (en) * 2016-04-14 2018-02-09 燕山大学 A kind of Index angle noise reduction axial plunger pump

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1894504A (en) * 2003-12-20 2007-01-10 Itw有限公司 Pump
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

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20100111721A1 (en) * 2008-09-25 2010-05-06 Idex Health & Science Llc Dual piston pump assembly with anti-rotation guide rails

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1894504A (en) * 2003-12-20 2007-01-10 Itw有限公司 Pump
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

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