CN104791210A - Double-swash-plate plunger type variable pump - Google Patents
Double-swash-plate plunger type variable pump Download PDFInfo
- Publication number
- CN104791210A CN104791210A CN201510107882.6A CN201510107882A CN104791210A CN 104791210 A CN104791210 A CN 104791210A CN 201510107882 A CN201510107882 A CN 201510107882A CN 104791210 A CN104791210 A CN 104791210A
- Authority
- CN
- China
- Prior art keywords
- swash plate
- plate
- plunger
- cylinder body
- gear
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Landscapes
- Reciprocating Pumps (AREA)
Abstract
The invention discloses a double-swash-plate plunger type variable pump. The double-swash-plate plunger type variable pump comprises an outer shell, a left end cover, a right end cover, a stator core, a motor winding, a rotor, a cylinder body, multiple plungers, two swash plate assemblies and multiple distribution devices. Each swash plate assembly comprises a swash plate, multiple piston shoes and a return plate. The two swatch plates are the left swatch plate and the right swatch plate respectively, the left swatch plate is fixedly installed on the left end cover, the right swatch plate is rotationally installed on the cylinder body or the right end cover and can rotate around the central axis of the cylinder body, and the right swatch plate is connected with a variable adjusting mechanism used for driving the right swatch plate to rotate so as to change the relative position of the right swatch plate and the left swatch plate. The double-swash-plate plunger type variable pump has the advantages of being small in size, large in flow, low in noise, small in leakage amount and the like, can achieve large-range stepless adjustment of displacement of the variable pump, effectively reduces energy loss, improves the system efficiency, effectively reduces pollution degree and system faults of a hydraulic system, and prolongs the service life of the hydraulic system.
Description
Technical field
The invention belongs to plunger type motor pump field, more specifically, relate to a kind of two inclined plate plunger type variable capacity pump.
Background technique
Hydraulic plunger type electric-motor pump is integrated swash plate plunger pump and motor, there is the advantages such as compact structure, noise is low, volume is little, efficiency is high, leakage rate is little, be a kind of novel hydraulic power unit, in hydraulic transmission, have important researching value and application prospect.
Hydraulic pump shaft often circles, the liquid volume that pump is discharged, and is called hydraulic pressure pump delivery.Whether the liquid capacity that oil hydraulic pump sucks by working volumes cyclically-varying and discharges is constant, can be divided into metering pump and variable displacement pump.The variable oil hydraulic pump of discharge capacity is called variable displacement pump.
The application number of the submit of claimant is " a kind of plunger type motor pump " of 201210090290.4, comprises shell, motor stator, rotor, cylinder body, plunger piston slippery boots assembly, left swash plate, right swash plate and suction valve assembly and delivery valve assembly; This motor pump delivery can not regulate, and belongs to the category of metering pump.The application number that claimant submits to is the category that " Double-swashplate valve distributing axial plunger-type water hydraulic canned motor pump " of " 201010103656.8 " also belongs to metering pump.From the angle of the requirement of energy-conservation and Flow-rate adjustment, hydraulic system sometimes needs hydraulic pressure pump delivery to regulate, the requirement of the electric-motor pump therefore invented before claimant energy-conservation and Flow-rate adjustment under can not meeting some occasion.
Summary of the invention
For above defect or the Improvement requirement of prior art, the invention provides a kind of two inclined plate plunger type variable capacity pump, so not only be provided with the advantages such as volume is little, flow is large, noise is low, leakage rate is little, and the large-scale step-less adjustment of variable displacement pump flow can be realized, effectively reduce energy ezpenditure, improve system effectiveness, and effectively reduce contamination level and the system failure of hydraulic system, extend the working life of hydraulic system.
For achieving the above object, according to one aspect of the present invention, provide a kind of two inclined plate plunger type variable capacity pump, comprise shell, left end cap, right end cap, stator iron core, motor winding, rotor, cylinder body, multiple plunger, two swash plate assemblies and multiple flow distribution apparatus, described left end cap and right end cap are arranged on the two ends, left and right of shell respectively; Described stator iron core, motor winding and rotor are all positioned at shell; Described cylinder body is fixedly mounted on rotor, and cylinder body drives it to rotate by described rotor; Wherein,
Described multiple plunger is distributed on cylinder ends, each plunger at two ends, left and right is corresponding respectively, form multiple plunger pair, described two swash plate assemblies are arranged outside cylinder body two ends, in the rotation of described cylinder body, described swash plate assembly makes each plunger to making periodic reverse motion, thus controls described flow distribution apparatus periodic duty, realizes the flow to variable displacement pump;
Described swash plate assembly comprises swash plate, multiple piston shoes and return plate, two swash plates are respectively left swash plate and right swash plate, described left swash plate is fixedly mounted on left end cap, described right swash plate is rotatably arranged on also can around the center axis thereof of cylinder body on cylinder body or right end cap, described right swash plate is connected with variable controlling mechanism, described variable controlling mechanism for driving right swash plate to rotate thus changing the relative position of right swash plate and left swash plate, and then changes variable pump delivery.
Preferably, described variable controlling mechanism comprises intermeshing first gear and the second gear, described first gear is connected with transmission shaft, described second gear is fixedly mounted on right swash plate, described transmission shaft rotates for driving the first gear, and described second gear is for driving right swash plate to rotate thus changing the relative position of right swash plate and left swash plate.
Preferably, described transmission shaft drives it to rotate by Electric actuator, Hydraulic actuator, Pneumatic actuator or electro-hydraulic device.
Preferably, described variable controlling mechanism comprises intermeshing worm gear and worm screw, and described worm gear is fixedly connected with right swash plate for driving right swash plate to rotate, thus changes the relative position of right swash plate and left swash plate.
Preferably, described worm screw drives it to rotate by Electric actuator, Hydraulic actuator, Pneumatic actuator or electro-hydraulic device.
Preferably, described variable controlling mechanism comprises intermeshing tooth bar and the 3rd gear, and described 3rd gear is fixedly connected with right swash plate for driving right swash plate to rotate, thus changes the relative position of right swash plate and left swash plate.
Preferably, described tooth bar drives it to rotate by Electric actuator, Hydraulic actuator, Pneumatic actuator or electro-hydraulic device.
Preferably, described variable pump delivery formula is
wherein, V is variable pump delivery, and d is plunger diameter, and z is plunger number, and D is the pitch circle diameter of plunger hole in cylinder body, and θ is the angle of the projection straight line of upper and lower stop line on projection circle of left and right swash plate working surface, and γ is the tilt angle of swash plate.
In general, the above technological scheme conceived by the present invention compared with prior art, can obtain following beneficial effect:
1) this variable displacement pump can drive right swash plate to rotate by variable controlling mechanism, thus change the relative position of right swash plate and left swash plate, the size of the angle of the projection straight line of the upper and lower stop line namely changing left and right swash plate working surface on projection circle and the size of this angle can regulate easily, thus change the variable quantity of volume in a work cycle of plunger cavity between often pair of plunger, therefore the present invention easily can realize the step-less adjustment of discharge capacity;
2) application of this variable displacement pump effectively can reduce contamination level and the system failure of hydraulic system, extends the working life of hydraulic system;
3) application of this variable displacement pump effectively can reduce the energy ezpenditure of system, improves system effectiveness;
4) volume of this variable displacement pump is little, flow is large, noise is low, and leakage rate is little.
Accompanying drawing explanation
Fig. 1 is plan view of the present invention;
Fig. 2 is piston shoes movement locus schematic diagram on middle left and right swash plate of the present invention;
Fig. 3 is the schematic diagram of two inclined plate plunger type variable capacity pump when discharge capacity is maximum in the present invention;
Fig. 4 is position relationship and the projection drawing of two swash plates when discharge capacity is maximum in the present invention;
Fig. 5 is the schematic diagram of two inclined plate plunger type variable capacity pump when discharge capacity is minimum in the present invention;
Fig. 6 is position relationship and the projection drawing of two swash plates when discharge capacity is minimum in the present invention;
Fig. 7 be in the present invention discharge capacity be in minimum and maximum between time the relative position of two swash plates and projection drawing;
It is the schematic diagram adopting the variable controlling mechanism of gear mechanism to drive right swash plate in Fig. 8 the present invention;
It is the schematic diagram adopting the variable controlling mechanism of worm-and-wheel gear to drive right swash plate in Fig. 9 the present invention;
It is the schematic diagram adopting the variable controlling mechanism of pinion and rack to drive right swash plate in Figure 10 the present invention.
In figure: 1-shell, 2-stator core, 3-motor winding, 4-stator can, 5-rotor, 6-key, 7-locating stud, 8-is contact ball bearing diagonally, 9-return plate, 10-center ball pivot, 11-cylinder body, the left swash plate of 12-, 13-piston shoes, 14-plunger, 15-left end cap, 16-suction valve, 17-delivery valve, 18-stator fixed cover, 19-pressure compensator, 20-right end cap, 21-deep groove ball bearing, 22-water outlet shell, 23-guider screw, 24-mechanical sealing static ring, the right swash plate of 25-, 26-Rotor can, 27-first gear, 28-transmission shaft, 29-second gear, 30-worm gear, 31-worm screw, 32-gear, 33-tooth bar, 34-variable controlling mechanism.
Embodiment
In order to make object of the present invention, technological scheme and advantage clearly understand, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the present invention, be not intended to limit the present invention.In addition, if below in described each mode of execution of the present invention involved technical characteristics do not form conflict each other and just can mutually combine.
With reference to Fig. 1, a kind of two inclined plate plunger type variable capacity pump, comprise shell 1, left end cap 15, right end cap 20, stator iron core 2, motor winding 3, rotor 5, cylinder body 11, multiple plunger 14, two swash plate assembly and multiple flow distribution apparatus, described left end cap 15 and right end cap 20 are arranged on the two ends, left and right of shell 1 respectively; Described stator iron core 2, motor winding 3 and rotor 5 are all positioned at shell 1; Described cylinder body 11 is fixedly mounted on rotor 5, and cylinder body 11 drives it to rotate by described rotor 5; Wherein,
Described multiple plunger 14 is distributed on cylinder body 11 end, each plunger 14 at two ends, left and right is corresponding respectively, form multiple plunger pair, described two swash plate assemblies are arranged outside cylinder body 11 two ends, in the rotation of described cylinder body 11, described swash plate assembly makes each plunger 14 to making periodic reverse motion, thus controls described flow distribution apparatus periodic duty, realizes the flow to variable displacement pump;
Described swash plate assembly comprises swash plate, multiple piston shoes 13 and return plate 9, two swash plates are respectively left swash plate 12 and right swash plate 25, described left swash plate 12 is fixedly mounted on left end cap 15, described right swash plate 25 is rotatably arranged on also can around the center axis thereof of cylinder body 11 on cylinder body 11 or right end cap 20, described right swash plate 25 is connected with variable controlling mechanism 34, described variable controlling mechanism 34 for driving right swash plate 25 to rotate thus changing the relative position of right swash plate 25 and left swash plate 12, and then changes variable pump delivery.
" Double-swashplate valve distributing axial plunger-type water hydraulic canned motor pump " that the present invention is mainly " 201010103656.8 " for the application number before claimant improves, variation place mainly adds a variable controlling mechanism 34 on right swash plate 25, mounting type in addition for right swash plate 25 also adjusts, and the annexation of other part, position relationship and working principle are the patent specification of " 201010103656.8 " with reference to application number.
In the present invention, when motor winding 3 switches on power, motor winding 3 produces rotating magnetic field, rotor 5 produces electromagnetic torque, rotor 5 is made to rotate motion, rotor 5 is connected by key 6 with cylinder body 11, cylinder body 11 is made also synchronously to rotate motion, thus drive plunger 14 to rotate motion around cylinder body 11 central axis, under the effect of center ball pivot 10 and return plate 9, plunger 14 realizes to-and-fro motion in plunger cavity, plunger cavity volume generating period is changed, cause suction valve 16 and delivery valve 17 periodically closed, by suction valve 16, the liquid in cylinder body 11 Left-side center hole is drawn to plunger cavity, and be depressed into cylinder body 11 right center hole by delivery valve 17 from plunger cavity, complete inspiration liquid and extrude liquid, this is working procedure of the present invention.
If the working medium hydraulic oil of two inclined plate variable displacement pump of the present invention, then do not need Rotor can 26.If water, then need to use Rotor can 26 to carry out shield water.
In variable displacement pump, left swash plate 12 is connected by locating stud 7 and left end cap 15, can not rotate by opposing left lid 15, and right swash plate 25 can be rotated by the central axis of variable controlling mechanism 34 around cylinder body 11, the angle of rotating is different, the change of the sealed volume of the plunger cavity in one-period between often pair of plunger 14 is different, thus discharge capacity is also different.
The principle that variable displacement pump of the present invention realizes displacement variation is described in detail in detail below.
Be the movement locus of piston shoes 13 bottom center on left swash plate 12 with reference to Fig. 2, track B, this movement locus is one oval on the working surface of left swash plate 12, and two intersection points of itself and the vertical center line of left swash plate 12 working surface are respectively its lower dead center and (are designated as " BDC
left", BDC is the acronym of Bottom Dead Centre) and top dead center (be designated as " TDC
left", TDC is the acronym of Top Dead Centre); Track A is the movement locus of piston shoes 13 bottom center on right swash plate 25, is one oval, and two intersection points of itself and the vertical center line of swash plate working surface are respectively its lower dead center and (are designated as " BDC
right") and top dead center (be designated as " TDC
right").
With reference to Fig. 3, Fig. 5, the direction express liquid of hollow arrow flows into variable displacement pump and flows out the direction of variable displacement pump.
With reference to Fig. 3 (in figure, return plate 9 is not shown), the working surface of left swash plate 12 and right swash plate 25 is inverted "eight" shape arrangement, and by " BDC on left swash plate 12
left" and " TDC
left" " BDC on the straight line of 2 compositions and right swash plate 25
right" and " TDC
right" straight line of 2 compositions coplanar on the symmetrical axial section of cylinder body 11 time; the volume of the plunger cavity between often pair of plunger 14 changes maximum in a work cycle; therefore the liquid volume that sucks in a work cycle of the often pair of plunger 14 is maximum; it is maximum to discharge liquid volume, and now variable displacement pump discharge capacity is maximum.
With reference to Fig. 5 (in figure, return plate 9 is not shown), left swash plate 12 and right swash plate 25 arranged in parallel, by " BDC on left swash plate 12
left" and " TDC
left" " BDC on the straight line of 2 compositions and right swash plate 25
right" and " TDC
right" straight line of 2 compositions is coplanar and parallel on the symmetrical axial section of cylinder body 11; volume of the plunger cavity between often pair of plunger 14 is changed to 0 in a work cycle; now in suction valve 16, no liquid is passed through; it is minimum that the often pair of plunger 14 discharges liquid volume a work cycle, and now variable displacement pump discharge capacity is minimum and be 0.
With reference to Fig. 7, when two swash plates are in any state except Fig. 3 and Fig. 5, on two swash plate working surfaces, piston shoes 13 bottom center's movement locus and the projection of upper and lower stop are as shown in Figure 7, " BDC
left' " be " BDC
left" in the projection on circle that projects, " TDC
left' " be " TDC
left" in the projection on circle that projects, " BDC
right' " be " BDC
right" in the projection on circle that projects, " TDC
right' " be " TDC
right" projection on projection circle; the relative position relation of definition now two swash plates is represented (θ independent of direction) by the angle theta of upper two projection straight line of circle that project; then under Fig. 3 state, the relative position relation of left and right swash plate is as shown in Figure 4; now θ=0 °; under Fig. 5 state, the relative position relation of left and right swash plate is as shown in Figure 6, now θ=180 °.
The discharge capacity formula of this two inclined plate axial plunger type variable capacity pump is:
In formula:
V-variable pump delivery;
D-plunger diameter;
Z-plunger number;
The pitch circle diameter of D-plunger hole in cylinder body;
The angle of the projection straight line of upper and lower stop line on projection circle of θ-left and right swash plate working surface;
The tilt angle of γ-swash plate.
From discharge capacity formula, when θ=0 ° (shown in Fig. 3 state), pump displacement V is maximum, for
time θ=180 ° (shown in Fig. 5 state), pump displacement V is minimum and be 0, and when θ is between 0 ° and 180 °, pump delivery V is large and diminish with the change of angle theta, so by fixing left swash plate, rotates right swash plate and namely achieves variable displacement pump.θ shown in Fig. 7 is at BDC
left' and TDC
left' the right of line; Certainly, if θ is at BDC
left' and TDC
left' left side of line, when θ is between 0 ° and 180 °, pump delivery V is also large with the change of angle theta and diminish.
Right swash plate 25 is realized by corresponding variable controlling mechanism 34 around the rotation of cylinder body 11 central axis.
As Fig. 8 shows, gear 27 is meshed with gear 29, by transmission shaft 28, power is reached gear 27, and power is reached gear 29 and right swash plate 25 by gear 27, and right swash plate is rotated around the central axis of cylinder body 11, and the variable realizing pump displacement regulates.And can drive manually to the power that transmission shaft 28 inputs, in addition, can also be realized by various power such as Electric actuator, Hydraulic actuator, Pneumatic actuator or electro-hydraulic devices.
As Fig. 9 shows, worm gear 30 is meshed with worm screw 31, by worm screw 31, power is reached worm gear 30 and right swash plate 25, and right swash plate 25 is rotated around the central axis of cylinder body 11, and the variable realizing pump displacement regulates.And can drive manually to the power that worm screw 31 inputs, in addition, can also be realized by various power such as Electric actuator, Hydraulic actuator, Pneumatic actuator or electro-hydraulic devices.
As shown in Figure 10, gear 32 is meshed with tooth bar 33, by tooth bar 33, power is reached gear 32 and right swash plate 25, makes right swash plate around the center axis thereof several angle of cylinder body 11, and the variable realizing pump displacement regulates.And can drive manually to the power that tooth bar 33 inputs, in addition, can also be realized by various power such as Electric actuator, Hydraulic actuator, Pneumatic actuator or electro-hydraulic devices.
In addition, variable controlling mechanism 34 of the present invention, is not limited to gear mechanism, worm-and-wheel gear and pinion and rack, can be that other can export the mechanism of rotary motion.
In a word, the adjustment of variable pump delivery of the present invention mainly drives right swash plate 25 to rotate by variable controlling mechanism 34, make right swash plate 25 around the center axis thereof several angle of cylinder body 11, to change the relative position relation between left swash plate 12 and right swash plate 25, namely change BDC
left' and TDC
left' line and BDC
right' and TDC
right' line projection circle on angle theta, angle theta change, volume variable quantity in a work cycle of the plunger cavity between often pair of plunger 14 also changes, then variable pump delivery can change.Controlling discharge capacity by changing angle theta, the step-less adjustment of pump displacement can be realized, more can meet the high request that hydraulic system is adjustable to flow, and being easy to by variable controlling mechanism 34 size controlling angle theta.
Those skilled in the art will readily understand; the foregoing is only preferred embodiment of the present invention; not in order to limit the present invention, all any amendments done within the spirit and principles in the present invention, equivalent replacement and improvement etc., all should be included within protection scope of the present invention.
Claims (8)
1. a two inclined plate plunger type variable capacity pump, comprise shell, left end cap, right end cap, stator iron core, motor winding, rotor, cylinder body, multiple plunger, two swash plate assemblies and multiple flow distribution apparatus, described left end cap and right end cap are arranged on the two ends, left and right of shell respectively; Described stator iron core, motor winding and rotor are all positioned at shell; Described cylinder body is fixedly mounted on rotor, and cylinder body drives it to rotate by described rotor; Wherein,
Described multiple plunger is distributed on cylinder ends, each plunger at two ends, left and right is corresponding respectively, form multiple plunger pair, described two swash plate assemblies are arranged outside cylinder body two ends, in the rotation of described cylinder body, described swash plate assembly makes each plunger to making periodic reverse motion, thus controls described flow distribution apparatus periodic duty, realizes the flow to variable displacement pump;
Described swash plate assembly comprises swash plate, multiple piston shoes and return plate, two swash plates are respectively left swash plate and right swash plate, described left swash plate is fixedly mounted on left end cap, it is characterized in that: described right swash plate is rotatably arranged on also can around the center axis thereof of cylinder body on cylinder body or right end cap, described right swash plate is connected with variable controlling mechanism, described variable controlling mechanism for driving right swash plate to rotate thus changing the relative position of right swash plate and left swash plate, and then changes variable pump delivery.
2. a kind of two inclined plate plunger type variable capacity pump according to claim 1, it is characterized in that: described variable controlling mechanism comprises intermeshing first gear and the second gear, described first gear is connected with transmission shaft, described second gear is fixedly mounted on right swash plate, described transmission shaft rotates for driving the first gear, and described second gear is for driving right swash plate to rotate thus changing the relative position of right swash plate and left swash plate.
3. a kind of two inclined plate plunger type variable capacity pump according to claim 2, is characterized in that: described transmission shaft drives it to rotate by Electric actuator, Hydraulic actuator, Pneumatic actuator or electro-hydraulic device.
4. a kind of two inclined plate plunger type variable capacity pump according to claim 1, it is characterized in that: described variable controlling mechanism comprises intermeshing worm gear and worm screw, described worm gear is fixedly connected with right swash plate for driving right swash plate to rotate, thus changes the relative position of right swash plate and left swash plate.
5. a kind of two inclined plate plunger type variable capacity pump according to claim 4, is characterized in that: described worm screw drives it to rotate by Electric actuator, Hydraulic actuator, Pneumatic actuator or electro-hydraulic device.
6. a kind of two inclined plate plunger type variable capacity pump according to claim 1, it is characterized in that: described variable controlling mechanism comprises intermeshing tooth bar and the 3rd gear, described 3rd gear is fixedly connected with right swash plate for driving right swash plate to rotate, thus changes the relative position of right swash plate and left swash plate.
7. a kind of two inclined plate plunger type variable capacity pump according to claim 6, is characterized in that: described tooth bar drives it to rotate by Electric actuator, Hydraulic actuator, Pneumatic actuator or electro-hydraulic device.
8. a kind of two inclined plate plunger type variable capacity pump according to claim 1, is characterized in that: described variable pump delivery formula is
wherein, V is variable pump delivery, and d is plunger diameter, and z is plunger number, and D is the pitch circle diameter of plunger hole in cylinder body, and θ is the angle of the projection straight line of upper and lower stop line on projection circle of left and right swash plate working surface, and γ is the tilt angle of swash plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510107882.6A CN104791210B (en) | 2015-03-11 | 2015-03-11 | A kind of two inclined plate plunger type variable capacity pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510107882.6A CN104791210B (en) | 2015-03-11 | 2015-03-11 | A kind of two inclined plate plunger type variable capacity pump |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104791210A true CN104791210A (en) | 2015-07-22 |
| CN104791210B CN104791210B (en) | 2016-08-31 |
Family
ID=53556293
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510107882.6A Active CN104791210B (en) | 2015-03-11 | 2015-03-11 | A kind of two inclined plate plunger type variable capacity pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104791210B (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105179192A (en) * | 2015-09-06 | 2015-12-23 | 哈尔滨工业大学 | Electric hydraulic ring-plug pump |
| CN106678434A (en) * | 2017-02-16 | 2017-05-17 | 河南科技大学 | Temperature adjusting dispenser water valve |
| CN108757373A (en) * | 2018-05-31 | 2018-11-06 | 华中科技大学 | A kind of two inclined plate plunger type motor pump |
| CN108869223A (en) * | 2018-08-06 | 2018-11-23 | 华中科技大学 | A kind of two inclined plate plunger pump |
| CN109404242A (en) * | 2018-11-14 | 2019-03-01 | 华中科技大学 | A kind of three hydraulic fluid port axis flow plunger type variable capacity pump of two inclined plate |
| CN109667740A (en) * | 2018-11-20 | 2019-04-23 | 重庆交通大学 | Birotor two-way variable displacement pump or motor |
| CN109737054A (en) * | 2019-01-21 | 2019-05-10 | 唐山德厚机械制造有限公司 | A kind of electro-hydraulic pump of rotary cylinder-block seben combination |
| CN110439777A (en) * | 2019-08-12 | 2019-11-12 | 山东科技大学 | A kind of hydraulic engine plunger pump by load control hydraulic displacement |
| CN117927439A (en) * | 2024-03-18 | 2024-04-26 | 潍柴动力股份有限公司 | Integrated electric pump and vehicle |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3935796A (en) * | 1974-04-16 | 1976-02-03 | Teleflex Incorporated | Variable hydraulic pumping apparatus |
| US4487108A (en) * | 1982-09-23 | 1984-12-11 | Mcluen Carl T | Variable displacement pump/motor |
| JP2003120516A (en) * | 2001-10-11 | 2003-04-23 | Hitachi Constr Mach Co Ltd | Variable displacement swash plate type hydraulic rotating machine |
| CN101311532A (en) * | 2007-05-24 | 2008-11-26 | 徐维胜 | Double-swash-plate axial Variable displacement plunger pump |
| CN201714610U (en) * | 2010-07-23 | 2011-01-19 | 浙江苏强格液压有限公司 | Variable mechanism of plunger pump |
| CN102141022A (en) * | 2010-02-02 | 2011-08-03 | 华中科技大学 | Double canted disk valve distribution axial plunger type water hydraulic pressure shielding pump |
| CN102619720A (en) * | 2012-03-30 | 2012-08-01 | 华中科技大学 | Plunger type motor pump |
| WO2013113109A1 (en) * | 2012-02-01 | 2013-08-08 | Bateham Laird | Hydroelectric power system and pump |
-
2015
- 2015-03-11 CN CN201510107882.6A patent/CN104791210B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3935796A (en) * | 1974-04-16 | 1976-02-03 | Teleflex Incorporated | Variable hydraulic pumping apparatus |
| US4487108A (en) * | 1982-09-23 | 1984-12-11 | Mcluen Carl T | Variable displacement pump/motor |
| JP2003120516A (en) * | 2001-10-11 | 2003-04-23 | Hitachi Constr Mach Co Ltd | Variable displacement swash plate type hydraulic rotating machine |
| CN101311532A (en) * | 2007-05-24 | 2008-11-26 | 徐维胜 | Double-swash-plate axial Variable displacement plunger pump |
| CN102141022A (en) * | 2010-02-02 | 2011-08-03 | 华中科技大学 | Double canted disk valve distribution axial plunger type water hydraulic pressure shielding pump |
| CN201714610U (en) * | 2010-07-23 | 2011-01-19 | 浙江苏强格液压有限公司 | Variable mechanism of plunger pump |
| WO2013113109A1 (en) * | 2012-02-01 | 2013-08-08 | Bateham Laird | Hydroelectric power system and pump |
| CN102619720A (en) * | 2012-03-30 | 2012-08-01 | 华中科技大学 | Plunger type motor pump |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105179192A (en) * | 2015-09-06 | 2015-12-23 | 哈尔滨工业大学 | Electric hydraulic ring-plug pump |
| CN105179192B (en) * | 2015-09-06 | 2017-01-04 | 哈尔滨工业大学 | Ring plug electric liquid pump |
| CN106678434A (en) * | 2017-02-16 | 2017-05-17 | 河南科技大学 | Temperature adjusting dispenser water valve |
| CN108757373A (en) * | 2018-05-31 | 2018-11-06 | 华中科技大学 | A kind of two inclined plate plunger type motor pump |
| CN108757373B (en) * | 2018-05-31 | 2024-03-26 | 华中科技大学 | Double-sloping cam plate plunger type motor pump |
| CN108869223A (en) * | 2018-08-06 | 2018-11-23 | 华中科技大学 | A kind of two inclined plate plunger pump |
| CN109404242A (en) * | 2018-11-14 | 2019-03-01 | 华中科技大学 | A kind of three hydraulic fluid port axis flow plunger type variable capacity pump of two inclined plate |
| CN109404242B (en) * | 2018-11-14 | 2024-02-06 | 华中科技大学 | Double-swash-plate three-oil-port shaft flow-distribution plunger type variable pump |
| CN109667740A (en) * | 2018-11-20 | 2019-04-23 | 重庆交通大学 | Birotor two-way variable displacement pump or motor |
| CN109737054A (en) * | 2019-01-21 | 2019-05-10 | 唐山德厚机械制造有限公司 | A kind of electro-hydraulic pump of rotary cylinder-block seben combination |
| CN110439777A (en) * | 2019-08-12 | 2019-11-12 | 山东科技大学 | A kind of hydraulic engine plunger pump by load control hydraulic displacement |
| CN117927439A (en) * | 2024-03-18 | 2024-04-26 | 潍柴动力股份有限公司 | Integrated electric pump and vehicle |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104791210B (en) | 2016-08-31 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104791210A (en) | Double-swash-plate plunger type variable pump | |
| CN103814213B (en) | Reciprocating positive displacement pump with electric reversing motor | |
| US2130299A (en) | Radial pump | |
| KR101424423B1 (en) | Hydraulic rotary actuator for valve | |
| CN202468192U (en) | Two-head dual-adjustment low-pulsation diaphragm metering pump | |
| US2992619A (en) | Fluid pumps, motors and methods therefor | |
| US2498790A (en) | Gear pump | |
| CN112555118B (en) | High-pressure high-flow hydraulic grouting pump operation system for ground | |
| CN206988546U (en) | A kind of novel signal gate valve | |
| CN206617289U (en) | A kind of three valveless rotary ceramic plunger metering pumps | |
| CN108757373A (en) | A kind of two inclined plate plunger type motor pump | |
| CN203856693U (en) | Variable diaphragm pump | |
| CN114483513B (en) | Single plunger servo variable pump | |
| CN106321391B (en) | Closed variable plunger pump | |
| US2261471A (en) | Adjustable volume control pump and two-stage pump | |
| JP6548966B2 (en) | Channel opening device | |
| CN205423090U (en) | Reciprocal drive return means of measuring pump | |
| DE102017211775B3 (en) | Piston pump with a driven, rotating pump head and a piston oscillating therein | |
| CN2883674Y (en) | Crossing plunger pump or motor | |
| CN101107447B (en) | Pump, especially slurry pump | |
| CN111237154B (en) | Submersible pump | |
| US2288833A (en) | Pump | |
| CN206650465U (en) | A kind of charging gun retaining mechanism | |
| CN105332872A (en) | Split axial plunger pump flow distribution plate with rotatable outer sealing belt | |
| CN203515983U (en) | Multichannel pump |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| EXSB | Decision made by sipo to initiate substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |