CN109944792A - A kind of double pressure double-direction gearpumps - Google Patents
A kind of double pressure double-direction gearpumps Download PDFInfo
- Publication number
- CN109944792A CN109944792A CN201910358681.1A CN201910358681A CN109944792A CN 109944792 A CN109944792 A CN 109944792A CN 201910358681 A CN201910358681 A CN 201910358681A CN 109944792 A CN109944792 A CN 109944792A
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- rotor
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- positive displacement
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- pump
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- 238000006073 displacement reaction Methods 0.000 claims abstract description 39
- 230000005540 biological transmission Effects 0.000 claims abstract description 16
- 108700028490 CAP protocol 2 Proteins 0.000 claims description 5
- 238000005260 corrosion Methods 0.000 claims description 3
- 230000007797 corrosion Effects 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- 230000002457 bidirectional effect Effects 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 5
- 239000003921 oil Substances 0.000 description 5
- 238000000034 method Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000013011 mating Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 239000010720 hydraulic oil Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
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Abstract
The present invention provides a kind of double pressure double-direction gearpumps, comprising: rear end cap, main drive shaft bearing sleeve, driven shaft bearing holder (housing, cover), gasket seal, pump case, drive end bearing bracket, cover board of front end and transmission device.Transmission device, comprising: driving shaft, the driven shaft being connected by key with the driving shaft internal rotor being connected by key, the rotor of beginning to speak engaged with internal rotor, the outer rotor engaged with rotor of beginning to speak and outer rotor.When driving shaft rotates, internal rotor and rotor of beginning to speak engage and drive end bearing bracket on horizontal direction runner the first positive displacement pump of composition；Rotor of beginning to speak also drives outer rotor to move simultaneously, begin to speak rotor and outer rotor engage and pump case on vertical direction runner constitute the second positive displacement pump；In one timing of driving shaft revolving speed, the first positive displacement pump has different pressure outputs from the second positive displacement pump；The integrated of two positive displacement pumps can be realized without additional transmission mechanism in the present invention, has achieved the purpose that a driving shaft realizes double pressure bidirectional outputs of pump, can be widely used in the occasion of operating condition complexity.
Description
Technical field
The present invention relates to the positive displacement pumps in Hydraulic Field, are related specifically to a kind of double pressure double-direction gearpumps.
Background technique
Gear pump realizes the conveying of medium using the volume variation of a pair of engaged gears two sides；Under normal conditions, a tooth
Wheel pump only one output and input；It, can only be more using series/parallel for needing the case where two synchronous input and output simultaneously
A pump, or realize there is a problem of that synchronism is bad, transformation adjustment hardly possible, limiting space has using parallel connection bypass plus overflow valve
Utilization under the special operation conditions such as limit, output pressure association to positive displacement pump.
Application number CN201820121808.9 patent discloses a kind of High-performance gear pump, including gear pump case, gear
There is oil-in chamber inside pump case, driving gear and driven gear, driving gear are installed in the oil-in chamber of gear pump case
It is mounted on active rotating shaft by flat key, driven gear is mounted on driven spindle by flat key, and active rotating shaft is by being located at gear
Rotary electric machine on the outside of pump case is driven, and the side of gear pump case is provided with oil-absorbing pipeline, in gear pump case
The other side is provided with flowline, oil-absorbing pipeline and flowline with communicated inside oil-in chamber；On the inner wall of oil-in chamber
It is provided with stain-proofing layer, and is uniformly machined with micro-groove on the inner wall of stain-proofing layer；The patent is served only for one-way transmission medium, and
Only input and output all the way.
Application number CN201520675744.3 patent discloses a kind of three combinating Type Gear Pump of interior external toothing, including one
Crescent gear pump and two external gear rotary pumps, the active of the main shaft of the crescent gear pump and the second external gear rotary pump
One end of gear shaft connects, the other end of the driving gear shaft of second external gear rotary pump and the first external gear rotary pump
Driving gear shaft is meshed；The patent is superimposed a crescent gear pump using two external gear rotary pumps and forms three combined types
Gear pump, there are two oil inlets, three oil outlets for tool, can be used for two different transmission oils and hydraulic oil works, can answer
For Enclosed Multi-Disk Wet Brake fork truck；The patent has been related to the form that gear pump connection group uses, and belongs to three independences
The cascade of gear pump.
Application number CN201520639814.X patent discloses a kind of miniature gear pump suitable for mechanical industry manufacture, packet
Gear pump main body, gear pump frame, gear pump case are included, gear pump bottom is bolted in the gear pump lower body
Seat；Gear pump frame upper end is provided with the gear pump case；The gear pump case left end is provided with gear pump left end
Lid；The gear pump case right end is provided with gear pump right end cap；The gear pump case upper inside is provided with power gear
Axis；The gear pump case inner lower is provided with driven gear shaft and is intermeshed with the power teeth wheel shaft；The power
The left end of gear shaft is connected to power input connecting shaft.The patent structure is simple and compact, small in size, self-suction is strong, the range of speeds
It is larger, easy to maintain；The patent is related to a kind of improved gear pump, is not directed to double pressure two-way functions of pump.
Patent data retrieval is as it can be seen that realize that volume pumping function belongs to universal method using interior external gear pump, but one group
Inside engaged gear and one group of external gear pump share a gear part, and realization constitutes two by three gears in a pump case
The positive displacement pump with double pressure two-way functions of meshing gear group has not been reported.
Summary of the invention
The present invention is directed at least solve one of problems of the prior art.
One of the objects of the present invention is to provide a kind of double pressure double-direction gearpumps, so that being not necessarily to additional transmission mechanism
It realizes the integrated of two positive displacement pumps, has achieved the purpose that the double pressure bidirectional outputs for completing pump using a driving shaft, it can be widely
Occasion applied to operating condition complexity.
Above-mentioned purpose is realized by following technical scheme:
A kind of double pressure double-direction gearpumps, comprising: by rear end cap, main drive shaft bearing sleeve, driven shaft bearing holder (housing, cover), gasket seal and big spiral shell
Bolt nut composition rear end cap combination, combine with the rear end cap be cooperatively connected pump case, with the pump case mating connection by
The drive end bearing bracket combination of the gasket seal, cover board of front end, the big screw-nut, Screw and drive end bearing bracket composition, with the pump
Shell shell inner cavity, rear end cap combination and the drive end bearing bracket combine the transmission device being coupled；Transmission device, comprising: actively
Axis, active axle key, driven shaft key, the internal rotor being connected by key with the driving shaft, engaged with the internal rotor begin to speak to turn
Son, the outer rotor engaged with the rotor of beginning to speak, the driven shaft being connected by key with the outer rotor；It is characterized in that, described
When driving shaft rotates, the internal rotor and the rotor of beginning to speak engage and the drive end bearing bracket on horizontal direction runner composition the
One positive displacement pump；Meanwhile the rotor of beginning to speak also drives the outer rotor to move, begin to speak rotor and the outer rotor engage
The second positive displacement pump is constituted with the vertical direction runner on the pump case；In the case where driving shaft revolving speed is certain, described first holds
Product pump has different output pressures from second positive displacement pump.
Further, first positive displacement pump is formed by the interior tooth engagement of the internal rotor external tooth and the rotor of beginning to speak；
Second positive displacement pump is formed by the external tooth of the rotor of beginning to speak and the outer tooth engagement of the outer rotor.
Further, the rotor of beginning to speak selects oil resistant corrosion-resistant, and the rubber material with certain degree of hardness and intensity；Institute
Begin to speak rotor and the pump case inner cavity, the internal rotor and the micro- interference fit of outer rotor selection are stated, the closed of cooperation is increased
Property, improve the volumetric efficiency of first positive displacement pump and second positive displacement pump.
Further, the inner cavity cornerite that the pump case is in contact with the rotor of beginning to speak is greater than 180 degree, to open described in guarantee
Chamber rotor has enough teeth and the pump case lumen contact always, and then the operation stability for rotor of beginning to speak described in guarantee.
Beneficial effect
The beneficial effects of the present invention are a kind of double pressure double-direction gearpumps are provided, pump-type of the invention is using internal-external gear engagement
The structure for double pressure Double-way sucking media that volume variation generates can solve inconvenient, limited space occasion the pump in many orientation
Installation, and a kind of structure may be implemented and realize the multi-functional positive displacement pump that two kinds of liquid mediums of different pressures convey simultaneously；This
The integrated of two positive displacement pumps can be realized without additional transmission mechanism in invention, has reached a driving shaft and has realized that double pressures of pump are double
To the purpose of output, the occasion of operating condition complexity can be widely used in.
Detailed description of the invention
The advantages of above-mentioned additional aspect of the invention, will be apparent and be easy from the description of the embodiment in conjunction with the following figures reason
Solution, in which:
Fig. 1 show a kind of Structure explosion diagram of the embodiment of double pressure double-direction gearpumps of the invention；
Fig. 2 show a kind of transmission structures schematic diagram of the embodiment of double pressure double-direction gearpumps of the invention；
Fig. 3 show a kind of rotor structure schematic diagram of beginning to speak of the embodiment of double pressure double-direction gearpumps of the invention；
Fig. 4 show a kind of drive end bearing bracket structural schematic diagram of the embodiment of double pressure double-direction gearpumps of the invention；
Fig. 5 show a kind of pump shell structure schematic diagram of the embodiment of double pressure double-direction gearpumps of the invention.
Wherein corresponding relationship of the Fig. 1 into Fig. 5 between appended drawing reference and component names are as follows:
1, big screw-nut；2, rear end cap；3, main drive shaft bearing sleeve；4, driven shaft bearing holder (housing, cover)；5, gasket seal；6, driving shaft；
7, active axle key；8, internal rotor；9, it begins to speak rotor；10, outer rotor；11, driven shaft key；12, driven shaft；13, pump case；14, preceding
End cap；15, cover board of front end；16, Screw；17, drive end bearing bracket combines；18, transmission device；19, rear end cap combines.
Specific embodiment
Below in conjunction with specific embodiment the present invention is described in detail；It should be noted that technology described in following embodiments is special
The combination of sign or technical characteristic is not construed as isolated, they can be combined with each other to reach superior technique
Effect.
Below with reference to Fig. 1 to Fig. 5 detailed description of the present invention embodiment:
Referring to Fig. 1, a kind of double pressure double-direction gearpumps, comprising: by rear end cap 2, main drive shaft bearing sleeve 3, driven shaft bearing holder (housing, cover) 4, close
The rear end cap combination 19 that gasket 5 and king-bolt nut 1 form, the pump case 13 of 19 mating connections is combined with the rear end cap, with
The pump case 13 be cooperatively connected by the gasket seal 5, cover board of front end 15, the big screw-nut 1, Screw 16 and front end
The drive end bearing bracket combination 17 that lid 14 forms, 19 and drive end bearing bracket combination 17 are combined with the 13 shell inner cavity of pump case, the rear end cap
The transmission device 18 being coupled；Transmission device 18, comprising: driving shaft 6, active axle key 7, driven shaft key 11 and the active
Internal rotor 8 that axis 6 is connected by active axle key 7, is nibbled with the rotor 9 of beginning to speak the rotor 9 of beginning to speak engaged with the internal rotor 8
The outer rotor 10 of conjunction passes through the driven shaft 12 that driven shaft key 11 is connect with the outer rotor 10；It is characterized in that, the driving shaft
When 6 rotation, the internal rotor 8 and the rotor 9 of beginning to speak engage and the drive end bearing bracket 14 on horizontal direction runner composition the
One positive displacement pump；Meanwhile the rotor 9 of beginning to speak also drives the outer rotor 10 to move, rotor 9 and the outer rotor 10 of beginning to speak
Engagement with the pump case 13 on vertical direction runner constitute the second positive displacement pump；In the case where 6 revolving speed of driving shaft is certain, institute
Stating the first positive displacement pump has different output pressures from second positive displacement pump.
Referring to fig. 2, first positive displacement pump is formed by the interior tooth engagement of 8 external tooth of internal rotor and the rotor 9 of beginning to speak；
Second positive displacement pump is formed by the outer tooth engagement of the external tooth and the outer rotor 10 of the rotor 9 of beginning to speak；The internal rotor 8 can
To use five tooth circular shapes；It is described begin to speak 9 inner cavity of rotor can using interior six teeth circular shape, outside can use five teeth
Circular shape；Five tooth circular shapes can be used in the outer rotor 10.
Referring to Fig. 3, the rotor 9 of beginning to speak selects oil resistant, corrosion-resistant, and the rubber material with certain degree of hardness and intensity；
The rotor 9 of beginning to speak selects micro- interference fit with 13 inner cavity of pump case, the internal rotor 8 and the outer rotor 10, and increase is matched
The airtightness of conjunction improves the volumetric efficiency of first positive displacement pump and second positive displacement pump.
Referring to fig. 4, the drive end bearing bracket combines the ring-like level side of symmetrical semi-circular that the endface of the 17, drive end bearing bracket 14 is provided with
It is coupled to disengaging medium runner hole, the internal rotor 8 and the rotor 9 of beginning to speak, constitutes first positive displacement pump.
Referring to Fig. 5, the inner cavity cornerite that the pump case 13 is in contact with the rotor 9 of beginning to speak is greater than 240 degree, described in guaranteeing
Rotor 9 of beginning to speak has no less than 4 teeth and 13 lumen contact of pump case always, and then the operation for rotor 9 of beginning to speak described in guaranteeing is steady
It is qualitative；The vertical direction that 13 inner cavity of pump case, the pump case 13 are provided with passes in and out medium runner hole, the drive end bearing bracket end face, institute
State rear end cap end face 19, it is described begin to speak rotor 9 and the outer rotor 10 is coupled, constitute second positive displacement pump.
The integrated of two positive displacement pumps can be realized without additional transmission mechanism in the present invention, has reached a driving shaft and has realized
The purpose of double pressure bidirectional outputs of pump, can be widely used in the occasion of operating condition complexity.
Although the embodiment of the present invention is had been presented for herein, for it will be appreciated by those skilled in the art that this hair
Bright patent is not limited to the details of above-mentioned exemplary embodiment, and in the feelings of the spirit or essential attributes without departing substantially from the invention patent
Under condition, the invention patent can be realized with other assembling forms；Above-described embodiment is only exemplary, the model of the invention patent
It encloses and is indicated by the appended claims rather than the foregoing description, it is intended that by the meaning and model of the condition of equivalent for falling in claim
All changes in enclosing are included in the invention patent；It should not be using the embodiments herein as the restriction of interest field of the present invention.
Claims (4)
1. a kind of double pressure double-direction gearpumps, comprising: by rear end cap, main drive shaft bearing sleeve, driven shaft bearing holder (housing, cover), gasket seal and big
The rear end cap combination of bolt and nut composition, the pump case being cooperatively connected is combined with the rear end cap, is cooperatively connected with the pump case
It is combined by the drive end bearing bracket that the gasket seal, cover board of front end, the big screw-nut, Screw and drive end bearing bracket form, and it is described
Pump case shell inner cavity, rear end cap combination and the drive end bearing bracket combine the transmission device being coupled；Transmission device, comprising: main
Moving axis, driven shaft key, the internal rotor being connected by key with the driving shaft, is begun to speak with what the internal rotor engaged at active axle key
Rotor, the outer rotor engaged with the rotor of beginning to speak, the driven shaft being connected by key with the outer rotor；It is characterized in that, institute
When stating driving shaft rotation, the internal rotor is constituted with engaging for the rotor of beginning to speak with the horizontal direction runner on the drive end bearing bracket
First positive displacement pump；Meanwhile the rotor of beginning to speak also drives the outer rotor to move, begin to speak rotor and the outer rotor are nibbled
It closes and constitutes the second positive displacement pump with the vertical direction runner on the pump case；In the case where driving shaft revolving speed is certain, described first
Positive displacement pump has different output pressures from second positive displacement pump.
2. pressure double-direction gearpumps as described in claim 1 double, which is characterized in that first positive displacement pump by the internal rotor outside
The interior tooth engagement of tooth and the rotor of beginning to speak forms；Second positive displacement pump by the rotor of beginning to speak external tooth and the outer rotor
Outer tooth engagement form；First positive displacement pump and second positive displacement pump share the rotor of beginning to speak.
3. pressure double-direction gearpumps as described in claim 1 double, which is characterized in that the rotor of beginning to speak selects oil resistant, corrosion-resistant,
And the rubber material with certain degree of hardness and intensity；Begin to speak rotor and the pump case inner cavity, the internal rotor and described outer
Rotor selects micro- interference fit, increases the airtightness of cooperation, improves the volume of first positive displacement pump and second positive displacement pump
Efficiency.
4. double pressure double-direction gearpumps as described in claim 1, which is characterized in that the pump case is in contact with the rotor of beginning to speak
Inner cavity cornerite be greater than 180 degree, have enough teeth and the pump case lumen contact, Jin Erbao always with rotor of beginning to speak described in guaranteeing
It begins to speak described in card the operation stability of rotor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910358681.1A CN109944792A (en) | 2019-04-30 | 2019-04-30 | A kind of double pressure double-direction gearpumps |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910358681.1A CN109944792A (en) | 2019-04-30 | 2019-04-30 | A kind of double pressure double-direction gearpumps |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109944792A true CN109944792A (en) | 2019-06-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910358681.1A Pending CN109944792A (en) | 2019-04-30 | 2019-04-30 | A kind of double pressure double-direction gearpumps |
Country Status (1)
| Country | Link |
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| CN (1) | CN109944792A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111520321A (en) * | 2020-05-15 | 2020-08-11 | 丁彪 | Mechanical seal chemical pump and use method thereof |
| CN111550400A (en) * | 2020-05-14 | 2020-08-18 | 天津市百利溢通电泵有限公司 | Axial-flow type inner gearing displacement pump with outer rotor provided with rubber inner bushing |
| CN114635849A (en) * | 2022-05-19 | 2022-06-17 | 冰轮环境技术股份有限公司 | Four-rotor displacement pump and flow adjusting method |
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|---|---|---|---|---|
| JP2009287463A (en) * | 2008-05-29 | 2009-12-10 | Aisin Ai Co Ltd | Pump |
| CN102900665A (en) * | 2012-10-16 | 2013-01-30 | 李庆中 | Inside engaged gear pump or gear motor device with multilayer structure |
| DE102012212986A1 (en) * | 2011-08-17 | 2013-02-21 | Schaeffler Technologies AG & Co. KG | External gear pump for liquids or elastic fluids, particularly hydraulic medium, such as oil, comprises two mutually meshing outer gears and additional displacement body arranged in displacement hull construction |
| CN106321422A (en) * | 2016-09-29 | 2017-01-11 | 武汉大学 | Two-stage internal gear pump |
| JP2017053240A (en) * | 2015-09-07 | 2017-03-16 | アイシン機工株式会社 | Gear pump |
| US20170211572A1 (en) * | 2016-01-26 | 2017-07-27 | Brose Fahrzeugteile Gmbh & Co. Kommanditgesellschaft, Wuerzburg | Oil pump |
-
2019
- 2019-04-30 CN CN201910358681.1A patent/CN109944792A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009287463A (en) * | 2008-05-29 | 2009-12-10 | Aisin Ai Co Ltd | Pump |
| DE102012212986A1 (en) * | 2011-08-17 | 2013-02-21 | Schaeffler Technologies AG & Co. KG | External gear pump for liquids or elastic fluids, particularly hydraulic medium, such as oil, comprises two mutually meshing outer gears and additional displacement body arranged in displacement hull construction |
| CN102900665A (en) * | 2012-10-16 | 2013-01-30 | 李庆中 | Inside engaged gear pump or gear motor device with multilayer structure |
| JP2017053240A (en) * | 2015-09-07 | 2017-03-16 | アイシン機工株式会社 | Gear pump |
| US20170211572A1 (en) * | 2016-01-26 | 2017-07-27 | Brose Fahrzeugteile Gmbh & Co. Kommanditgesellschaft, Wuerzburg | Oil pump |
| CN106321422A (en) * | 2016-09-29 | 2017-01-11 | 武汉大学 | Two-stage internal gear pump |
Non-Patent Citations (1)
| Title |
|---|
| 郑思义;: "几种新型齿轮泵的结构特点" * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111550400A (en) * | 2020-05-14 | 2020-08-18 | 天津市百利溢通电泵有限公司 | Axial-flow type inner gearing displacement pump with outer rotor provided with rubber inner bushing |
| CN111520321A (en) * | 2020-05-15 | 2020-08-11 | 丁彪 | Mechanical seal chemical pump and use method thereof |
| CN111520321B (en) * | 2020-05-15 | 2022-09-13 | 大连宏亚泵业有限公司 | Mechanical seal chemical pump and use method thereof |
| CN114635849A (en) * | 2022-05-19 | 2022-06-17 | 冰轮环境技术股份有限公司 | Four-rotor displacement pump and flow adjusting method |
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Application publication date: 20190628 |