CN105626514A - Novel difunctional gear pump - Google Patents
Novel difunctional gear pump Download PDFInfo
- Publication number
- CN105626514A CN105626514A CN201610080851.0A CN201610080851A CN105626514A CN 105626514 A CN105626514 A CN 105626514A CN 201610080851 A CN201610080851 A CN 201610080851A CN 105626514 A CN105626514 A CN 105626514A
- Authority
- CN
- China
- Prior art keywords
- driving wheel
- pump
- pressure
- gear pump
- secondary driving
- 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
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C2/00—Rotary-piston machines or pumps
- F04C2/08—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing
- F04C2/12—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type
- F04C2/14—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type with toothed rotary pistons
- F04C2/18—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type with toothed rotary pistons with similar tooth forms
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C15/00—Component parts, details or accessories of machines, pumps or pumping installations, not provided for in groups F04C2/00 - F04C14/00
- F04C15/0042—Systems for the equilibration of forces acting on the machines or pump
- F04C15/0049—Equalization of pressure pulses
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C15/00—Component parts, details or accessories of machines, pumps or pumping installations, not provided for in groups F04C2/00 - F04C14/00
- F04C15/06—Arrangements for admission or discharge of the working fluid, e.g. constructional features of the inlet or outlet
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Rotary Pumps (AREA)
Abstract
The invention relates to a novel difunctional gear pump which comprises a pump body, pressure cavities, oil suction cavities, pump shafts, a driving wheel, an auxiliary driving wheel end cover, an oil suction cavity channel and a pressure cavity channel. The structure of the novel difunctional gear pump is mainly changed, and a traditional double-gear structure is changed into a three-gear structure, so that a traditional single oil suction cavity and a single pressure cavity are changed into the double oil suction cavities and the double pressure cavities. Most importantly, pressure balance in the pump body is achieved through the change, and meanwhile the pressure and flow are increased. The novel difunctional gear pump has the beneficial effects that the problem that the pulsation and noise are high is successfully solved, the pressure is increased, the liquid flow is increased, and the working efficiency is improved; the defect that unilateral stress on the high-pressure outlet side of a traditional gear pump is unbalanced is overcome; and unilateral eccentric wear of the end face of a gear to the end cover is effectively relieved, the internal leakage of the end face of the gear pump is reduced, and the effective life of the gear pump is prolonged.
Description
Technical field
The present invention relates to a kind of pump, particularly relate to the double-action hydraulic gear pump of the double suction oil pocket under a kind of three gear structures, double; two pressure chamber.
Background technology
Hydraulic gear pump is the machinery making fluid pressurization, it sends mechanical energy or other external energies of prime mover to liquid, liquid energy is made to increase, it is a kind of very universal pump, relies primarily on the swept volume change formed between pumping cylinder and meshing gear and liquid or so as to the drum pump of supercharging are carried in movement. Simple in construction due to gear pump itself, it is easy to manufacturing, resistant to pollution performance is good, and therefore by hydraulic system extensive use, but traditional hydraulic gear pump exists following defect:
(1) existing gear pump is duplex geared pump, and pressure fluctuation is big, noise is big, and single pump work pressure is little, flow is little;
(2) high-voltage performance is bad, and existing gear pump generally there are volumetric loss problem, cause the reason of volumetric loss specifically include that radially reveal, section is revealed, point of mesh is revealed and elastic loss during liquid compression
(3) existing gear pump, is all single-acting gear pump, and it is pressure chamber, and another side is exactly oil sucting cavity, and when high-pressure work, gear end cap place stress is unbalanced, internal hemorrhage due to trauma and eccentric wear easily occurs, has also limited to its extensive use simultaneously.
Therefore, for the above, it is necessary to prior art is reasonably improved.
Summary of the invention
For disadvantages described above, patent of the present invention provides a kind of double acting gear pump, this double acting gear pump, changes mainly for its structure, traditional Double-gear made three gears into, so that traditional single suction oil pocket, pressure chamber, become double suction oil pocket, double; two pressure chamber, it is most important that, the pressure balance in the pump housing is achieved by this change, also enhance pressure and flow, to solve many deficiencies of prior art simultaneously.
For achieving the above object, the present invention is by the following technical solutions:
Double acting gear pump, including the pump housing, pressure chamber, oil sucting cavity, pump shaft, drivewheel, secondary driving wheel end cap, oil sucting cavity passage and pressure chamber passage; Being provided with pump shaft in the described pump housing, its pump shaft is connected with external kinetic energy equipment;
Described drivewheel is arranged at the inner chamber of the pump housing, is set on pump shaft, and the both sides of drivewheel are provided with secondary driving wheel, drivewheel respectively with two secondary driving wheel engagement rotation;
Described drivewheel is respectively arranged with oil sucting cavity one and pressure chamber two with the corresponding both sides of secondary driving wheel one engagement;
Described drivewheel is respectively arranged with oil sucting cavity two and pressure chamber one with the corresponding both sides of secondary driving wheel two engagement;
Described end cap is connected with the pump housing by securing member, airtight pump housing inner chamber simultaneously, and is provided with oil sucting cavity passage and pressure chamber passage on end face inwall;
Having the beneficial effect that of a kind of double acting gear pump of the present invention successfully solves the problem that pulsation is big, noise is big, strengthen pressure and add fluid flow, improve work efficiency, avoid the conventional tooth wheel pump uneven defect in the monolateral stress in high-pressure outlet side, also it is effectively reduced the gear face monolateral eccentric wear to end cap, decrease in gear pump end and let out, extend the useful life of gear pump.
Accompanying drawing explanation
Below according to accompanying drawing, the present invention is described in further detail.
Fig. 1 is the general assembly structure chart of a kind of double acting gear pump described in embodiment of the present invention.
Fig. 2 is the sectional view of a kind of double acting gear pump described in embodiment of the present invention.
In figure:
1, the pump housing; 2, pressure chamber one; 3, pressure chamber two; 4, oil sucting cavity one; 5, oil sucting cavity two; 6, pump shaft; 7, drivewheel; 8, secondary driving wheel one; 9, secondary driving wheel two; 10, end cap; 11, oil sucting cavity passage; 12, pressure chamber passage.
Detailed description of the invention
As shown in Figure 1, 2, a kind of double acting gear pump described in patent working mode of the present invention, including the pump housing 1, pressure chamber 1, pressure chamber 23, oil sucting cavity 1, oil sucting cavity 25, pump shaft 6, drivewheel 7, pinion 1, pinion 29, end cap 10; Described end cap 10 is provided with oil sucting cavity passage 11 and pressure chamber passage 12;
The described pump housing 1 center is provided with the pump shaft 6 being connected with external kinetic energy device, conducts prime kinetic energy by pump shaft 6, and pump shaft 6 suit is fixed on the center driving drivewheel 7 of drivewheel 7;
Described drivewheel 7 is being rotated by by motive, drives the secondary driving wheel 1 being arranged on adjacent both sides and secondary driving wheel 29 to rotate simultaneously; It is in opposite direction that described secondary driving wheel 1 and secondary driving wheel 29 rotate;
The both sides of described drivewheel 7 and secondary driving wheel 1 engagement place are respectively provided with pressure chamber 23 and oil sucting cavity 1, the both sides of corresponding position and secondary driving wheel 29 engagement place are respectively provided with pressure chamber 1 and oil sucting cavity 25, two oil sucting cavities formed in conjunction with the design of the pump housing 1 and two pressure chambers, described end cap 10 is provided with oil sucting cavity passage 11 be connected by two oil sucting cavities, two pressure chambers are connected by the pressure chamber passage 12 being correspondingly arranged, achieve single pump and possess the identical pressure of double pump and flow, drivewheel in the middle of this structure is simultaneously by the squeezing action of two pressure chambers, and two pressure sizes are identical, in opposite direction, its transverse pressure is cancelled out each other, therefore, pump shaft 6 is not subject to any side force,
Described drivewheel 7, secondary driving wheel 1 and secondary driving wheel 29, can to the design of its module, respective pump shape simultaneously, not at synchronization when making its secondary driving wheel 1 and secondary driving wheel 29 engage with drivewheel 7, so effectively solve the pressure fluctuation after two pressure chambers conflux, the end at pump of two pressure chambers simultaneously, and it is connected with end cap, the pressure spot of two pressure chambers acts on two points corresponding on end cap face, therefore two pressure spots only can push out flat for end cap 10, effectively prevent the conventional tooth wheel pump uneven defect in the monolateral stress in high-pressure outlet side, alleviate drivewheel 7 simultaneously, secondary driving wheel 1 and the secondary driving wheel 29 end face monolateral eccentric wear to end cap 10, thus can reduce and let out in the end of gear pump, extend the useful life of gear pump.
The above-mentioned description to embodiment be for the ease of those skilled in the art it will be appreciated that and application this case technology, these examples obviously can be made various amendment by person skilled in the art easily, and General Principle described herein is applied in other embodiments without through performing creative labour. Therefore, this case is not limited to above example, those skilled in the art's announcement according to this case, and the improvement made for this case and amendment all should in the protection domains of this case.
Claims (5)
1. the present invention relates to a kind of double acting gear pump, including the pump housing (1), pressure chamber one (2), pressure chamber two (3), oil sucting cavity one (4), oil sucting cavity two (5), pump shaft (6), drivewheel (7), secondary driving wheel one (8), secondary driving wheel two (9), end cap (10), it is characterized in that: the center of the described pump housing (1) is arranged at the pump shaft (6) that external motive force is connected, its pump shaft (6) suit drivewheel (7);
Described drivewheel (7) is provided with secondary driving wheel one (8) and secondary driving wheel two (9) in adjacent both sides; It is respectively provided with pressure chamber two (3) and oil sucting cavity one (4) with secondary driving wheel one (8) both sides, engagement place; It is respectively provided with pressure chamber one (2) and oil sucting cavity two (5) with secondary driving wheel two (9) both sides, engagement place;
Described end cap (10) is fixedly mounted on the pump housing (1) by securing member, and medial wall is provided with oil sucting cavity passage (11) and pressure chamber passage (12).
2. a kind of double acting gear pump according to claim 1, it is characterised in that: it is in opposite direction that described secondary driving wheel one (8) and secondary driving wheel two (9) rotate.
3. a kind of double acting gear pump according to claim 1, it is characterised in that: the oil sucting cavity passage (11) that described end cap (10) medial wall is arranged is connected with oil sucting cavity one (4) and oil sucting cavity two (5) respectively.
4. a kind of double acting gear pump according to claim 1, it is characterised in that: the pressure chamber passage (12) that described end cap (10) medial wall is arranged be connected with pressure chamber one (2) and pressure chamber two (3) respectively.
5. a kind of double acting gear pump according to claim 1, it is characterized in that: described drivewheel 7, secondary driving wheel 1 and secondary driving wheel 29, design to its module, simultaneously respective pump shape, not at synchronization when its secondary driving wheel 1 and secondary driving wheel 29 engage with drivewheel 7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610080851.0A CN105626514A (en) | 2016-02-02 | 2016-02-02 | Novel difunctional gear pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610080851.0A CN105626514A (en) | 2016-02-02 | 2016-02-02 | Novel difunctional gear pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105626514A true CN105626514A (en) | 2016-06-01 |
Family
ID=56041761
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610080851.0A Pending CN105626514A (en) | 2016-02-02 | 2016-02-02 | Novel difunctional gear pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105626514A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108612651A (en) * | 2018-07-13 | 2018-10-02 | 杜马司科学仪器（江苏）有限公司 | A kind of vacuum liquid discharging pump and vacuum distillation apparatus |
| WO2020011159A1 (en) * | 2018-07-12 | 2020-01-16 | 艾默生环境优化技术(苏州)有限公司 | Fluid pumping device and horizontal compressor |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61291791A (en) * | 1985-06-20 | 1986-12-22 | Tochigi Fuji Ind Co Ltd | Gear pump |
| JP2008223619A (en) * | 2007-03-13 | 2008-09-25 | Bridgestone Corp | Extruder with gear pump |
| CN102818106A (en) * | 2012-08-30 | 2012-12-12 | 浙江平柴泵业有限公司 | One-inlet two-outlet double-connection oil pump |
| CN102878072A (en) * | 2012-10-04 | 2013-01-16 | 张意立 | Pressure holding gear pump |
| JP2013044321A (en) * | 2011-08-26 | 2013-03-04 | Ueda Tekko Kk | Gear pump |
-
2016
- 2016-02-02 CN CN201610080851.0A patent/CN105626514A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61291791A (en) * | 1985-06-20 | 1986-12-22 | Tochigi Fuji Ind Co Ltd | Gear pump |
| JP2008223619A (en) * | 2007-03-13 | 2008-09-25 | Bridgestone Corp | Extruder with gear pump |
| JP2013044321A (en) * | 2011-08-26 | 2013-03-04 | Ueda Tekko Kk | Gear pump |
| CN102818106A (en) * | 2012-08-30 | 2012-12-12 | 浙江平柴泵业有限公司 | One-inlet two-outlet double-connection oil pump |
| CN102878072A (en) * | 2012-10-04 | 2013-01-16 | 张意立 | Pressure holding gear pump |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020011159A1 (en) * | 2018-07-12 | 2020-01-16 | 艾默生环境优化技术(苏州)有限公司 | Fluid pumping device and horizontal compressor |
| US11761438B2 (en) | 2018-07-12 | 2023-09-19 | Copeland Climate Technologies (Suzhou) Co. Ltd. | Fluid pumping device and horizontal compressor |
| CN108612651A (en) * | 2018-07-13 | 2018-10-02 | 杜马司科学仪器（江苏）有限公司 | A kind of vacuum liquid discharging pump and vacuum distillation apparatus |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20160601 |