CN106837733A - A kind of new change displacement hydraulic pump - Google Patents
A kind of new change displacement hydraulic pump Download PDFInfo
- Publication number
- CN106837733A CN106837733A CN201710115480.XA CN201710115480A CN106837733A CN 106837733 A CN106837733 A CN 106837733A CN 201710115480 A CN201710115480 A CN 201710115480A CN 106837733 A CN106837733 A CN 106837733A
- Authority
- CN
- China
- Prior art keywords
- bearing
- spiroid
- pump case
- swash plate
- motor
- 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
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
- F04B1/26—Control
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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
- 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
- F04B53/22—Arrangements for enabling ready assembly or disassembly
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Reciprocating Pumps (AREA)
- Rotary Pumps (AREA)
Abstract
A kind of new change displacement hydraulic pump, belong to hydraulic pressure pump technical field, it is made up of turbine end cap, motor, signal terminal, pump case, bearing (1) mounting seat, plunger cavity, bearing (2) mounting seat, bearing (2), spiroid, bearing (1), fixing nut, spiroid gear, swash plate mechanical position limitation, swash plate, spline, it is characterised in that：Motor is arranged on pump case external surface, signal terminal is arranged on motor lower end, turbine end cap is arranged on pump case top by four screws, bearing (1) mounting seat is welded on turbine end and covers, plunger cavity is located at the side of swash plate, and motor is direct-connected with spiroid through shaft coupling, and bearing (2) is fixed on pump case inner surface, spiroid is fixed in pump case by bearing (2), and spiroid is engaged with spiroid gear simultaneously.The usefulness of the invention is：Backlash is reduced, stroking mechanism is integrally placed in pump case, enhance integrated design, reduce interference of the external environment to stroking mechanism.
Description
Technical field
The present invention relates to a kind of new change displacement hydraulic pump, specifically using motor, spiroid, spiroid gear, swash plate
Composition, the invention belongs to hydraulic pressure pump technical field.
Background technology
The electro-hydraulic actuator (EHA) of integration is a kind of volumetric void fraction hydraulic servomechanism, i.e., exported by adjusting hydraulic pump
Flow controls hydraulic cylinder output displacement, with continuing to develop for China's Aero-Space correlation technique, performance to EHA it is also proposed that
Requirement higher, and become discharge capacity variable speed type hydraulic pump due to more flexible in control, motor speed requirement can be reduced,
And frequency response can be higher.Because EHA is closed type hydraulic system, therefore the variable-displacement pump of conventionally employed hydraulic-driven is just no longer suitable
The demand of EHA is closed, becomes discharge capacity pluger type hydraulic pump, set of gears transmission mechanism is driven by motor, eventually through change swash plate
Inclination angle changes the discharge capacity of pump, but still suffers from some problems：Become discharge capacity transmission mechanism be placed in outside pump case, to external world environment compared with
It is sensitivity；Can inevitably there is backlash as transmission system using gear train, this is in pump startup or commutation to systematicness
Can produce inevitably negative effect.Regarding to the issue above, the negative shadow that backlash is produced to systematic function is reduced as far as possible
Ring, while stroking mechanism is designed in pump case, only retain motor outside pump case, reduce external environment condition to pump performance
Influence, the transmission mechanism for devising this spiroid gear worm screw replaces the change displacement hydraulic pump of gear drive.
The content of the invention
For above-mentioned deficiency, the invention provides a kind of new change displacement hydraulic pump.
The present invention is achieved by the following technical solutions：A kind of new change displacement hydraulic pump, is by turbine end cap, electricity
Machine, signal terminal, pump case, bearing (1) mounting seat, plunger cavity, bearing (2) mounting seat, bearing (2), spiroid, bearing (1),
What fixing nut, spiroid gear, swash plate mechanical position limitation, swash plate, spline were constituted, it is characterised in that：Motor is arranged on pump case appearance
On face, signal terminal is arranged on motor lower end, and turbine end cap is arranged on pump case top by four screws, and bearing (1) is installed
Seat is welded on turbine end and covers, and plunger cavity is located at the side of swash plate, and motor is direct-connected with spiroid through shaft coupling, and bearing (2) is fixed
In pump case inner surface, spiroid is fixed in pump case by bearing (2), and spiroid is engaged with spiroid gear simultaneously.
In bearing (1) mounting seat, bearing (1) is connected the bearing (1) by rotating shaft with swash plate, swash plate it is another
End is connected to and is fixed on the base of pump case inner surface.
The spiroid gear is concentric with wobbler shaft, circumferentially fixed with wobbler shaft by spline, is connected by two fixing nuts
Connect and the shaft shoulder and wobbler shaft axial restraint, and then spiroid gear is rigidly connected with swash plate.
Position is provided with swash plate mechanical position limitation between the spiroid gear and wobbler shaft.
The spiroid gear and spiroid have carried out integrated design with pump case, are placed in inside pump case, make system entirety
Rigidity improves 31%, and frequency response improves 11.2%.
The usefulness of the invention is：Script motor reducer and gear teeth are fanned two sleeve gear transmission mechanisms by this nested structure
It is a set of spiroid gear transmission mechanism to simplify, and reduces backlash, and stroking mechanism is integrally placed in pump case, enhances one
Change design, reduce interference of the external environment to stroking mechanism；It is easy to axially significantly adjust, controls sideshake, is brought to installation
Convenience；It is capable of achieving bigger gearratio；Self-locking is realized on the premise of sacrificial section efficiency；Procedure for Spiroid Gearing is steady, carries
Ability is big, compact conformation；Hydrodynamic lubrication is formed between being conducive to the flank of tooth, contact stress is reduced, mitigates friction and wear, improved
Transmission efficiency and service life.
Brief description of the drawings
Accompanying drawing 1 is a kind of overall structure figure for becoming displacement hydraulic pump；
Accompanying drawing 2 is a kind of construction profile for becoming displacement hydraulic pump；
Accompanying drawing 3 is a kind of turbine end cap structure chart for becoming displacement hydraulic pump；
Accompanying drawing 4 is a kind of shell structure figure for becoming displacement hydraulic pump；
Accompanying drawing 5 is a kind of internal view for becoming displacement hydraulic pump；
Accompanying drawing 6 is a kind of partial sectional view for becoming displacement hydraulic pump；
In figure, 1, turbine end cap, 2, motor, 3, signal terminal, 4, pump case, 5, bearing (1) mounting seat, 6, plunger cavity,
7th, the mounting seat of bearing 2,8, bearing (2), 9, spiroid, 10, bearing (1), 11, fixing nut, 12, spiroid gear, 13, swash plate machinery
It is spacing, 14, swash plate, 15, spline
Specific embodiment
A kind of new change displacement hydraulic pump, is pacified by turbine end cap 1, motor 2, signal terminal 3, pump case 4, bearing (1)
Dress seat 5, plunger cavity 6, bearing (2) mounting seat 7, bearing (2) 8, spiroid 9, bearing (1) 10, fixing nut 11, spiroid gear 12,
What swash plate mechanical position limitation 13, swash plate 14, spline 15 were constituted, it is characterised in that：Motor 2 is arranged on the outer surface of pump case 4, signal
Terminal 3 is arranged on the lower end of motor 2, and turbine end cap 1 is arranged on the top of pump case 4 by four screws, and bearing (1) mounting seat 5 is welded
It is connected on turbine end cap 1, plunger cavity 6 is located at the side of swash plate 14, motor 2 is direct-connected with spiroid 9 through shaft coupling, bearing (2) 8 is consolidated
Due to the inner surface of pump case 4, spiroid 9 is fixed in pump case 4 by bearing (2) 8, and spiroid 9 is engaged with spiroid gear 12 simultaneously.
The bearing (1) 10 is arranged in bearing (1) mounting seat 5, and bearing (1) 10 is connected by rotating shaft with swash plate 14, tiltedly
The other end of disk 14 is connected to and is fixed on the base of the inner surface of pump case 4.
The spiroid gear 12 is concentric with the axle of swash plate 14, circumferentially fixed with the axle of swash plate 14 by spline 15, by two fixations
Nut 11 is connected in series and the shaft shoulder and the axle axial restraint of swash plate 14, and then spiroid gear 12 is rigidly connected with swash plate 14.
Position is provided with swash plate mechanical position limitation 13 between the spiroid gear 12 and the axle of swash plate 14.
The spiroid gear 12 and spiroid 9 have carried out integrated design with pump case 4, and are placed in inside pump case 4, make
System integral rigidity improves 31%, and frequency response improves 11.2%.
In normal work, motor 2 drives spiroid 9 to rotate through shaft coupling, and the engagement of spiroid 9 drives 12 turns of spiroid gear
It is dynamic, and then change the purpose that plunger displacement pump swashplate angle changes pumpage to reach.
For the ordinary skill in the art, teaching of the invention, do not depart from principle of the invention with
In the case of spirit, the changes, modifications that are carried out to implementation method, replace and modification still fall within protection scope of the present invention it
It is interior.
Claims (5)
1. a kind of new change displacement hydraulic pump, is by turbine end cap, motor, signal terminal, pump case, bearing (1) mounting seat, post
Plug chamber, bearing (2) mounting seat, bearing (2), spiroid, bearing (1), fixing nut, spiroid gear, swash plate mechanical position limitation, swash plate,
Spline composition, it is characterised in that：Motor is arranged on pump case external surface, and signal terminal is arranged on motor lower end, turbine end
Lid is arranged on pump case top by four screws, and bearing (1) mounting seat is welded on turbine end and covers, and plunger cavity is located at swash plate
Side, motor is direct-connected with spiroid through shaft coupling, and bearing (2) is fixed on pump case inner surface, and spiroid is fixed on by bearing (2)
In pump case, spiroid is engaged with spiroid gear simultaneously.
2. a kind of new change displacement hydraulic pump according to claim 1, it is characterised in that：The bearing (1) is installed in axle
Hold in (1) mounting seat, bearing (1) is connected by rotating shaft with swash plate, the other end of swash plate is connected to and is fixed on pump case inner surface
Base on.
3. a kind of new change displacement hydraulic pump according to claim 1, it is characterised in that：The spiroid gear is same with wobbler shaft
The heart, it is circumferentially fixed with wobbler shaft by spline, it is connected in series by two fixing nuts and the shaft shoulder and wobbler shaft axial restraint, enter
And spiroid gear is rigidly connected with swash plate.
4. a kind of new change displacement hydraulic pump according to claim 1, it is characterised in that：The spiroid gear and wobbler shaft it
Between position swash plate mechanical position limitation is installed.
5. a kind of new change displacement hydraulic pump according to claim 1, it is characterised in that：The spiroid gear and spiroid with
Pump case has carried out integrated design, is placed in inside pump case, system integral rigidity is improved 31%, and frequency response is improved
11.2%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710115480.XA CN106837733B (en) | 2017-03-01 | 2017-03-01 | A kind of change displacement hydraulic pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710115480.XA CN106837733B (en) | 2017-03-01 | 2017-03-01 | A kind of change displacement hydraulic pump |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106837733A true CN106837733A (en) | 2017-06-13 |
| CN106837733B CN106837733B (en) | 2018-08-07 |
Family
ID=59137575
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710115480.XA Expired - Fee Related CN106837733B (en) | 2017-03-01 | 2017-03-01 | A kind of change displacement hydraulic pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106837733B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102966505A (en) * | 2012-11-21 | 2013-03-13 | 张盘营 | Horizontal type volumetric water pump for generating power by utilizing energy of seawater surge |
| CN204099146U (en) * | 2014-07-11 | 2015-01-14 | 北京航天发射技术研究所 | Hydraulic variable displacement pump |
| CN104612926A (en) * | 2015-01-19 | 2015-05-13 | 西安交通大学 | Swash plate type axial plunger pump servo variable displacement mechanism adopting end cams for transmission |
| DE102014206911A1 (en) * | 2014-04-10 | 2015-10-15 | Robert Bosch Gmbh | Swash plate machine |
| CN205298075U (en) * | 2015-12-07 | 2016-06-08 | 江苏国泉泵业制造有限公司 | Angle adjustment mechanism of axial -flow pump stator blade |
-
2017
- 2017-03-01 CN CN201710115480.XA patent/CN106837733B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102966505A (en) * | 2012-11-21 | 2013-03-13 | 张盘营 | Horizontal type volumetric water pump for generating power by utilizing energy of seawater surge |
| DE102014206911A1 (en) * | 2014-04-10 | 2015-10-15 | Robert Bosch Gmbh | Swash plate machine |
| CN204099146U (en) * | 2014-07-11 | 2015-01-14 | 北京航天发射技术研究所 | Hydraulic variable displacement pump |
| CN104612926A (en) * | 2015-01-19 | 2015-05-13 | 西安交通大学 | Swash plate type axial plunger pump servo variable displacement mechanism adopting end cams for transmission |
| CN205298075U (en) * | 2015-12-07 | 2016-06-08 | 江苏国泉泵业制造有限公司 | Angle adjustment mechanism of axial -flow pump stator blade |
Non-Patent Citations (1)
| Title |
|---|
| 陆文欣: "锥蜗杆传动的设计与应用", 《常州工业技术学院学报》 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106837733B (en) | 2018-08-07 |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB03 | Change of inventor or designer information |
Inventor after: Fu Yongling Inventor after: Li Linjie Inventor after: Song Yafeng Inventor after: Han Xu Inventor before: Fu Yongling Inventor before: Zhao Zining Inventor before: Song Yafeng Inventor before: Han Xu |
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| CB03 | Change of inventor or designer information | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180807 Termination date: 20210301 |
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| CF01 | Termination of patent right due to non-payment of annual fee |