CN106089624A - A kind of electro-hydraulic pump of plunger type - Google Patents
A kind of electro-hydraulic pump of plunger type Download PDFInfo
- Publication number
- CN106089624A CN106089624A CN201610412891.0A CN201610412891A CN106089624A CN 106089624 A CN106089624 A CN 106089624A CN 201610412891 A CN201610412891 A CN 201610412891A CN 106089624 A CN106089624 A CN 106089624A
- Authority
- CN
- China
- Prior art keywords
- end cap
- plate end
- valve plate
- rotor
- swash plate
- 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.)
- Pending
Links
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B17/00—Pumps characterised by combination with, or adaptation to, specific driving engines or motors
- F04B17/03—Pumps characterised by combination with, or adaptation to, specific driving engines or motors driven by electric motors
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B1/00—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders
- F04B1/12—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinder axes coaxial with, or parallel or inclined to, main shaft axis
- F04B1/20—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinder axes coaxial with, or parallel or inclined to, main shaft axis having rotary cylinder block
- F04B1/2014—Details or component parts
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B1/00—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders
- F04B1/12—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinder axes coaxial with, or parallel or inclined to, main shaft axis
- F04B1/20—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinder axes coaxial with, or parallel or inclined to, main shaft axis having rotary cylinder block
- F04B1/2014—Details or component parts
- F04B1/2078—Swash plates
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
- F04B53/08—Cooling; Heating; Preventing freezing
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Reciprocating Pumps (AREA)
Abstract
A kind of electro-hydraulic pump of plunger type, threephase asynchronous and axial plunger pump are integrated in a housing, it is achieved that power and mechanical energy hydraulic pressure transformation of energy.This pump includes swash plate end cap (10) and valve plate end cap (1), both are fixing with housing (19) respectively is connected, wherein, stator (7) is installed in housing (19), installing rotor (8) in stator (7), rotor (8) inner ring is fixed with the cylinder body (3) equipped with plunger (9) by steel bushing (5) and is connected；Swash plate end cap (10) and inlet union (13) connect, and valve plate end cap (1) and outlet connection (3) connect；Swash plate end cap (10) and valve plate end cap (1) form cavity volume with stator (7) and rotor (8) respectively, and housing (19), valve plate end cap (1) are respectively provided with, on swash plate end cap (10), the runner being connected.Program compact conformation, volume are little, lightweight, efficiency is high and low cost, alternative existing electric-motor pump combination unit.
Description
Technical field
The present invention relates to a kind of hydraulic pump, a kind of axial piston electricity integrated with threephase asynchronous
Liquid pump.
Background technology
Hydraulic pump is a kind of energy conversion apparatus, and it converts mechanical energy into hydraulic energy, is moving in Hydraulic Power Transmission System
Power element, provides certain pressure and the fluid of flow for system.Traditional hydraulic power supply uses motor+shaft coupling+hydraulic pump
" syllogic " structure.Motor can reduce efficiency due to the existence of radiator fan and produce noise；Shaft coupling is connecting motor
The most not concentric condition brought when axle and pump shaft can cause the vibration in operation process and noise；The outrigger shaft of hydraulic pressure
Bring outward leakage；The energy loss that motor and plunger displacement pump bring due to friction in each operating makes integral energy conversion ratio not
High.
For problem above, domestic and international experts and scholars and research institution are devoted to carry out motor and hydraulic pump integrated always
The research of body, at present.The research institution such as German, Japanese has been developed that the electro-hydraulic pump of a few money, domestic is still in principle prototype
Experimental stage, does not has the product of maturation.
Summary of the invention
For above-mentioned technical problem, the present invention provides a kind of electro-hydraulic pump of plunger type, and it is by threephase asynchronous and axially
Plunger displacement pump is integrated in a housing, and compact conformation, volume are little, efficiency is high, alternative existing " syllogic " combination unit.
The technical solution adopted for the present invention to solve the technical problems is: a kind of electro-hydraulic pump of plunger type, this pump includes swash plate
End cap and valve plate end cap, both are fixedly connected with the casing respectively, wherein, install rotor, turn in housing in installing stator, stator
Sub-inner ring by steel bushing with equipped with plunger cylinder body fix be connected；Swash plate end cap and inlet union connect, valve plate end cap and going out
Mouth joint connects；Swash plate end cap and valve plate end cap form cavity volume, housing, valve plate end cap and swash plate with stator and rotor respectively
The runner being connected it is respectively provided with on end cap.
As a kind of optimal way of the present invention, described swash plate end cap is installed piston shoes, chuck, compression plug screw and adjustment
Copper ring, piston shoes are hinged with the plunger being arranged in cylinder body；Described cylinder body is connected by steel bushing and rotor inner ring are fixing, and rotor leads to
Crossing two needle bearings to support, two needle bearings are separately mounted on swash plate end cap and valve plate end cap.
As a kind of optimal way of the present invention, described runner is by the oil-in radial flow being arranged on swash plate end cap
Road, the oil suction being circumferentially disposed on case inside and coolant flow channel, the radial flow path being arranged on valve plate end cap and
Kidney-shaped oil suction runner, and the kidney-shaped force feed runner being arranged on valve plate end cap opposite side is connected in sequence, wherein, oil-in
Radial flow path communicates with the inlet union being arranged on swash plate end cap, and kidney-shaped oil suction runner and kidney-shaped force feed runner pass through valve plate
The plunger cavity that end cap is formed with plunger and cylinder body communicates, kidney-shaped force feed runner and the outlet connection being arranged on valve plate end cap
Communicate.
As a kind of optimal way of the present invention, described rotor uses squirrel-cage cast aluminum construction, and both sides are furnished with end ring, turns
Son and steel bushing are circumferentially fixed by key.
The present invention, compared with background technology, has the beneficial effect that the electro-hydraulic pump of this plunger type is by threephase asynchronous
Rotor and plunger cylinder be structurally linked together, utilize rotor directly to drive plunger cylinder, rotary motion turned
Turn to the linear motion of plunger so that hydraulic power unit is structurally greatly simplified, eliminate conversion of motion device；Owing to going
Motor and the direct connecting shaft of plunger displacement pump are fallen so that driving-chain greatly reduces, and efficiency is greatly improved；This plunger type is electro-hydraulic simultaneously
Pump need not outrigger shaft, seals simple, and there is not external leakage；Eliminate electric motor fan, directly use pump oil cooling and air
Heat radiation, decreases the noise that fan brings.The present invention has simple in construction, volume is little, efficiency is high, cooling is convenient, noise is low, nothing
External leakage, good manufacturability, low cost and other advantages, can replace existing syllogic hydraulic power unit, extensively application and hydraulic pressure
As kinetic pump in system, it is particularly suited for not allowing external leakage or having the place of strict restriction to volume weight.
Accompanying drawing explanation
The present invention is further described with embodiment below in conjunction with the accompanying drawings.
Fig. 1 is the front view of the electro-hydraulic pump of plunger type；
Fig. 2 is the left view of the electro-hydraulic pump of plunger type；
Fig. 3 is that the A-A shown in Fig. 2 is to sectional view；
Fig. 4 is the main sectional view of housing；
Fig. 5 is valve plate left view.
Drawing reference numeral illustrates: 1. valve plate end cap, 2. outlet connection, 3. cylinder body, 4. needle bearing, 5. steel bushing, 6. end ring,
7. stator, 8. rotor, 9. plunger, 10. swash plate end cap, 11. cutting ferrules, 12. swash plate radial flow path, 13. inlet union, 14. compress
Plug screw, 15. adjust copper ring, 16. piston shoes, 17. sealing rings, 18. suspension ring, 19. housings, 20. valve plate radial flow path, 21. kidney-shapeds
Oil suction runner, the 22. oblique runners of valve plate, 23. kidney-shaped force feed runners, 24. housing oil suction and coolant flow channels.
Detailed description of the invention
The present invention proposes a kind of electro-hydraulic pump of plunger type, as depicted in figs. 1 and 2, by threephase asynchronous and axial columns
The plug highly integrated fusion of pump is in a housing.Alternating magnetic field between stator 7 and rotor 8 drives rotor 8 to rotate, and rotor 8 passes through
Cylinder body 3 that steel bushing 5 drives plunger displacement pump and the plunger 9 being contained in cylinder body 3 rotate, and coordinate the push-and-pull action of swash plate end cap 10 to make plunger
9 move back and forth, and complete suction, oil extraction process.
The electro-hydraulic pump of this plunger type includes swash plate end cap 10 and valve plate end cap 1, as shown in Figures 2 and 3, swash plate end cap 10
Being connected with housing 19 by screw with valve plate end cap 1, and sealed by sealing ring 17, inlet union 13 is arranged on by screw
The outside of swash plate end cap 10, outlet connection 2 is connected with valve plate end cap 1 by screw thread, and cylinder body 3 is solid with rotor 8 by steel bushing 5
Even, steel bushing 5 supports by the needle bearing 4 being arranged on swash plate end cap 10 and valve plate end cap 1；Install sliding on swash plate end cap 10
Boots 16, chuck 11, compression plug screw 15 and adjustment copper ring 14, piston shoes 16 are hinged with the plunger 9 being arranged in cylinder body 3；Swash plate end cap
10 and valve plate end cap 1 form cavity volume with stator 7 and rotor 8 respectively, be full of fluid therebetween, in work fluid take away each work unit
The heat that part produces.
4 radial flow path 12 arranged on swash plate end cap 10 communicate with inlet union 13, as shown in Figure 4, inside housing 19
Peripherally disposed 60 oil suctions and coolant flow channel 24, as it is shown in figure 5, be provided with 4 radial flow path on valve plate end cap 1
20, kidney-shaped oil suction runner 21 and kidney-shaped force feed runner 22, kidney-shaped oil suction runner 21 and kidney-shaped force feed runner 22 are by valve plate end
The plunger cavity that lid 1 is formed with plunger 9 and cylinder body 3 communicates, kidney-shaped force feed runner 22 and the outlet being arranged on valve plate end cap 1
Joint 2 communicates.Fluid flows in housing 19 through inlet union 13 and radial flow path 12, through oil suction and coolant flow channel 24, flow
The radial flow path 20 of dish end cap 1 flows into kidney-shaped oil suction runner 21, then by the motion of plunger by fluid from kidney-shaped force feed runner 22
Extrude through outlet connection 2.Under duty, fluid flows through the cavity volume in housing 19, and takes away stator 7, rotor 8 and plunger
The heat of each working portion of pump.
On the electro-hydraulic pump stator of this plunger type 7, stator slot is set, is wound around coil in groove, forms stator winding；Rotor 8 uses
Cast-in aluminum squirrel cage formula structure.After three-phase alternating current is passed through stator winding, forming a rotating excitation field, the magnetic line of force of rotating excitation field is turned
Son 8 cutting, produces induction electromotive force.Under the effect of electromagnetic force, generation electromagnetic torque between rotor 8 and stator 7, drive rotor 8,
Steel bushing 5 and cylinder body 3 rotate, and are distributed on cylinder body 3 nine plungers 9 and make to involve rotary motion around cylinder body 3 axis；Each plunger 9
Bulb hinged with piston shoes 16, and by chuck 11 with compress plug screw 14 piston shoes 16 are tightly pressed against on swash plate end cap 10, and lead to
Cross adjustment copper ring 15 and regulate the oil film thickness between piston shoes 16 and swash plate end cap 10, due to swash plate end cap 10 normal direction and cylinder body
3 axis directions have certain angle, and when cylinder body 3 rotates, plunger 9 is reciprocating in the plunger cavity in cylinder body 3, coordinate flow
Dish end cap 1 completes suction oil process.
The electro-hydraulic pump of this plunger type rotor 8 use squirrel-cage cast aluminum construction, both sides are furnished with end ring 6, rotor 8 and steel bushing
5 is circumferentially fixed by key；Housing suspension hook arranged above 18, convenient carrying.
The cooling of the electro-hydraulic pump of this plunger type is not the fan coolling pattern using conventional motors, but utilizes electro-hydraulic pump institute
The fluid of conveying is carried out from cooling down.Inside the rotor both sides of motor, swash plate end cap and valve plate end cap and case inside all
Contacting with hydraulic oil, hydraulic oil, is entered through internal coolant flow channel, valve plate end cap runner from fuel tank oil-feed by inlet union
Enter plunger cavity, and along with the rotation of cylinder body completes oil extraction.
Claims (4)
1. the electro-hydraulic pump of plunger type, it is characterised in that: this pump includes swash plate end cap (10) and valve plate end cap (1), Liang Zhefen
Do not fix with housing (19) and be connected, wherein, in stator (7), stator (7) are installed in housing (19), rotor (8), rotor (8) are installed
Inner ring by steel bushing (5) with equipped with plunger (9) cylinder body (3) fix be connected；Swash plate end cap (10) and inlet union (13) connect,
Valve plate end cap (1) and outlet connection (3) connect；Swash plate end cap (10) and valve plate end cap (1) respectively with stator (7) and rotor
(8) forming cavity volume, housing (19), valve plate end cap (1) are respectively provided with, on swash plate end cap (10), the runner being connected.
The electro-hydraulic pump of plunger type the most according to claim 1, it is characterised in that: on described swash plate end cap (10), piston shoes are installed
(16), chuck (11), compression plug screw (15) and adjustment copper ring (14), piston shoes (16) and plunger (9) hinge being arranged in cylinder body (3)
Connect；Described cylinder body (3) is connected by steel bushing (5) and rotor (8) inner ring are fixing, and rotor (8) is by two needle bearings (4)
Support, two needle bearings (4) are separately mounted on swash plate end cap (10) and valve plate end cap (1).
3. according to the electro-hydraulic pump of the plunger type described in claim 1 or 2, it is characterised in that: described runner is by being arranged on swash plate end
Oil-in radial flow path (12) on lid (10), is circumferentially disposed in the oil suction on housing (19) inner side and coolant flow channel
(24), the radial flow path (20) being arranged on valve plate end cap (1) and kidney-shaped oil suction runner (21), and it is arranged on valve plate end
Lid (1) opposite side kidney-shaped force feed runner (22) be connected in sequence, wherein, oil-in radial flow path (12) be arranged on swash plate
Inlet union (13) on end cap (10) communicates, and kidney-shaped oil suction runner (20) and kidney-shaped force feed runner (22) are by valve plate end cap
(1) plunger cavity formed with plunger (9) and cylinder body (3) communicates, kidney-shaped force feed runner (22) and be arranged on valve plate end cap (1)
On outlet connection (2) communicate.
4. according to the electro-hydraulic pump of the plunger type described in claim 1 or 2, it is characterised in that: described rotor (8) uses squirrel-cage casting
Constructed of aluminium, both sides are furnished with end ring (6), and rotor (8) and steel bushing (5) are circumferentially fixed by key.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610412891.0A CN106089624A (en) | 2016-06-14 | 2016-06-14 | A kind of electro-hydraulic pump of plunger type |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610412891.0A CN106089624A (en) | 2016-06-14 | 2016-06-14 | A kind of electro-hydraulic pump of plunger type |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106089624A true CN106089624A (en) | 2016-11-09 |
Family
ID=57845655
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610412891.0A Pending CN106089624A (en) | 2016-06-14 | 2016-06-14 | A kind of electro-hydraulic pump of plunger type |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106089624A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106678011A (en) * | 2017-01-22 | 2017-05-17 | 石家庄市液压有限责任公司 | Hydraulic pump |
| CN107559170A (en) * | 2017-10-16 | 2018-01-09 | 青岛大学 | A kind of squirrel-cage mechanical electronic hydraulic integrated power device |
| CN107630798A (en) * | 2017-10-16 | 2018-01-26 | 青岛大学 | A kind of variable displacement AC synchronous mechanical electronic hydraulic coupler |
| CN108894940A (en) * | 2018-06-28 | 2018-11-27 | 西安交通大学 | A kind of aircraft steering engine sloping tray axial electric-motor pump |
| CN108953138A (en) * | 2018-09-18 | 2018-12-07 | 杭州力龙液压有限公司 | Hydraulic planger pump and hydraulic device |
| CN113417908A (en) * | 2021-06-08 | 2021-09-21 | 北京航空航天大学 | Permanent magnet servo axial plunger pump integrated electro-hydraulic energy system |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5708311A (en) * | 1996-07-17 | 1998-01-13 | Vickers, Inc. | Integrated electric motor driven in line hydraulic pump |
| CN2937546Y (en) * | 2006-08-15 | 2007-08-22 | 兰州理工大学 | Hydraulic motor axial plunger pump |
| CN102536722A (en) * | 2011-12-23 | 2012-07-04 | 燕山大学 | Numerical control alternating current permanent magnet servo variable speed variable quantity awry plate type axial plunger hydraulic motor pump |
| CN103441611A (en) * | 2013-08-23 | 2013-12-11 | 北京航空航天大学 | Permanent magnet axial plunger type electro-hydraulic pump with revolving speed feedback |
| CN103590998A (en) * | 2013-11-22 | 2014-02-19 | 北京机械设备研究所 | Axial plunger hydraulic motor pump based on permanent-magnet synchronous motor |
-
2016
- 2016-06-14 CN CN201610412891.0A patent/CN106089624A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5708311A (en) * | 1996-07-17 | 1998-01-13 | Vickers, Inc. | Integrated electric motor driven in line hydraulic pump |
| CN2937546Y (en) * | 2006-08-15 | 2007-08-22 | 兰州理工大学 | Hydraulic motor axial plunger pump |
| CN102536722A (en) * | 2011-12-23 | 2012-07-04 | 燕山大学 | Numerical control alternating current permanent magnet servo variable speed variable quantity awry plate type axial plunger hydraulic motor pump |
| CN103441611A (en) * | 2013-08-23 | 2013-12-11 | 北京航空航天大学 | Permanent magnet axial plunger type electro-hydraulic pump with revolving speed feedback |
| CN103590998A (en) * | 2013-11-22 | 2014-02-19 | 北京机械设备研究所 | Axial plunger hydraulic motor pump based on permanent-magnet synchronous motor |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106678011A (en) * | 2017-01-22 | 2017-05-17 | 石家庄市液压有限责任公司 | Hydraulic pump |
| CN107559170A (en) * | 2017-10-16 | 2018-01-09 | 青岛大学 | A kind of squirrel-cage mechanical electronic hydraulic integrated power device |
| CN107630798A (en) * | 2017-10-16 | 2018-01-26 | 青岛大学 | A kind of variable displacement AC synchronous mechanical electronic hydraulic coupler |
| CN107630798B (en) * | 2017-10-16 | 2023-08-18 | 青岛大学 | Variable alternating current synchronous electromechanical liquid coupler |
| CN108894940A (en) * | 2018-06-28 | 2018-11-27 | 西安交通大学 | A kind of aircraft steering engine sloping tray axial electric-motor pump |
| CN108953138A (en) * | 2018-09-18 | 2018-12-07 | 杭州力龙液压有限公司 | Hydraulic planger pump and hydraulic device |
| CN113417908A (en) * | 2021-06-08 | 2021-09-21 | 北京航空航天大学 | Permanent magnet servo axial plunger pump integrated electro-hydraulic energy system |
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|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20161109 |
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| RJ01 | Rejection of invention patent application after publication |