CN107882723A - A kind of Miniature diaphragm pump - Google Patents
A kind of Miniature diaphragm pump Download PDFInfo
- Publication number
- CN107882723A CN107882723A CN201710942334.4A CN201710942334A CN107882723A CN 107882723 A CN107882723 A CN 107882723A CN 201710942334 A CN201710942334 A CN 201710942334A CN 107882723 A CN107882723 A CN 107882723A
- Authority
- CN
- China
- Prior art keywords
- barrier film
- pressing plate
- bent axle
- film pressing
- 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.)
- Pending
Links
Classifications
-
- 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
- F04B43/00—Machines, pumps, or pumping installations having flexible working members
- F04B43/02—Machines, pumps, or pumping installations having flexible working members having plate-like flexible members, e.g. diaphragms
- F04B43/04—Pumps having electric drive
- F04B43/043—Micropumps
-
- 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
-
- 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
- F04B53/006—Crankshafts
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Reciprocating Pumps (AREA)
Abstract
The present invention relates to a kind of membrane pump, including pump case, motor, bent axle, barrier film pressing plate, barrier film；Motor and barrier film are installed on housing；Bent axle is by bearing and bearings in pump case；Motor driven crank rotation, bent axle and barrier film pressing plate form toggle, are connected by bearing pin with barrier film press plate rotary, i.e., the rotary motion of bent axle is changed into the reciprocating motion of barrier film pressing plate, realize that barrier film moves back and forth under the drive of barrier film pressing plate.The structural improvement of the present invention direct-connected barrier film connecting rod of original membrane pump eccentric cam, cause barrier film connecting rod to drive the structure of diaphragm oscillation, improve the stressing conditions that barrier film works long hours, extend the life-span of barrier film；Reduce the clearance volume brought by diaphragm oscillation problem and increase problem, improve the efficiency of Miniature diaphragm pump；The supporting way of the direct-connected eccentric cam of original motor shaft is improved, improves the stressing conditions of bearing at eccentric cam, improves reliability and the life-span of Miniature diaphragm pump.
Description
Technical field
The invention belongs to membrane pump field, is related to a kind of Miniature diaphragm pump.
Background technology
Existing Miniature diaphragm pump uses motor direct-connected cam, and the rotational band moving cam of motor rotates, the eccentric shaft of cam
Barrier film pressing plate and barrier film are driven by bearing, by the swing for being converted into barrier film of motor, so that the volume of diaphragm cavity is advised
The increase of rule property is reduced, and reaches the purpose of pumped (conveying) medium.
Motor shaft directly interlocks barrier film, and the movement locus for causing barrier film is not straight line, but regular swing, is made
Into barrier film in motion process in addition to by pressure medium, also acted on by twisting resistance, membrane life is shorter；Membrane pump category
In displacement pump, and the efficiency of displacement pump is significantly related to clearance volume, in order to get out of the way the track of diaphragm oscillation, it is necessary in diaphragm cavity
Enough volumes are inside left, therefore, the direct-connected mode of existing Miniature diaphragm pump makes that the clearance volume of pump is excessive, and the efficiency of pump is relatively low.
The mode of cantilever support makes that the stressing conditions of cam upper bearing (metal) are bad, and bearing life is shorter.
The content of the invention
Goal of the invention
The present invention proposes a kind of Miniature diaphragm pump, particularly a kind of Miniature diaphragm pump, the movement locus of barrier film is changed into one
Bar straight line, extend the life-span of barrier film, reduce clearance volume, improve the miniature diaphragm efficiency of pump；Eccentric cam is passed through one simultaneously
The mode of the direct-connected barrier film pressing plate of bearing is changed to the bearings at both ends support of bent axle, and the rotation of bent axle interlocks bearing plate by bearing,
So as to drive barrier film to move along a straight line, improve the force way of bent axle and bearing plate, improve the reliability of product, extend the bearing longevity
Life.
Technical scheme
To achieve the above object, the technical solution adopted by the present invention is：By the way of crankshaft two end bearings, make electricity
Arbor output torque, the rotation of bent axle drive barrier film link motion；Increase bearings outside barrier film connecting rod, connect for barrier film
The motion of bar is oriented to, and makes the motion of barrier film connecting rod be changed into moving along a straight line from swinging.
A kind of Miniature diaphragm pump is provided, including pump case 6, motor 2, bent axle 5, barrier film pressing plate 9, barrier film 10,；The He of motor 2
Barrier film 10 is installed on housing 6；Bent axle 5 is supported in pump case by bearing 1 and bearing 4；Motor 2 rotates with dynamic crankshaft 5,
Bent axle 5 and barrier film pressing plate 9 form toggle, are connected by bearing pin with barrier film press plate rotary, i.e., transport the rotation of bent axle 5
Turn is changed into the reciprocating motion of barrier film pressing plate 9, realizes that barrier film 10 moves back and forth under the drive of barrier film pressing plate 9.
A kind of Miniature diaphragm pump, including pump case 6, motor 2, cam 16, spring 15, barrier film 10 and barrier film pressing plate are separately provided
9；Motor 2 and barrier film 10 are installed on housing 6；Cam 16 is arranged on motor shaft；Between barrier film pressing plate 9 and pump case 6
Described spring 15 is set, the other end of barrier film pressing plate 9 is pressed on cam 16 by spring force；Motor 2 rotates with moving cam 16
When, promote barrier film pressing plate 9 to move up by cam 16, and promote barrier film pressing plate 9 to reset by spring 15.
Further, pilot sleeve 8 is additionally provided with described pump case 6, the pilot sleeve 8 is enclosed on barrier film pressing plate 9
On, relative slide is set barrier film pressing plate 9 with pilot sleeve 8.
Further, described bent axle by bearings in pump case.
Further, it is rotatablely connected between described bent axle and barrier film connecting rod by bearing.
Further, described motor shaft and cam key connection, and by bearings in pump case.
Invention effect
Structural improvement of the present invention original membrane pump eccentric cam direct-connected barrier film connecting rod, barrier film connecting rod is caused to drive barrier film pendulum
Dynamic structure, the stressing conditions that barrier film works long hours are improved, extend the life-span of barrier film；Reduce because of diaphragm oscillation problem
The clearance volume increase problem brought, improve the efficiency of Miniature diaphragm pump；Improve the direct-connected eccentric cam of original motor shaft
Supporting way, the stressing conditions of bearing at eccentric cam are improved, improve reliability and the life-span of Miniature diaphragm pump.
Brief description of the drawings
Fig. 1 is the structural representation of the membrane pump (bent axle scheme) of the present invention；
Fig. 2 is the structural representation of the membrane pump (cam scheme) of the present invention；
Fig. 3 is (bent axle scheme) assembling schematic diagram of the invention；
Wherein：1-bearing, 2-motor, 3-bearing, 4-bearing, 5-bent axle, 6-housing, 7-connecting rod, 8-guiding
Sleeve, 9-barrier film pressing plate, 10-barrier film, 11-inlet connector tube, 12-check valve, 13-spring, 14-outlet pipe connection,
15-back-moving spring, 16-cam.
Embodiment
The present invention is using space station Miniature diaphragm pump as example, as shown in figs. 1 and 3.A kind of specific embodiment, including pump case
Body 6, motor 2, bent axle 5, barrier film pressing plate 9, barrier film 10；Motor 2 and barrier film 10 are installed on housing；5 rotatable twelve Earthly Branches of bent axle
Support is in pump case 6；Motor 2 will rotate with dynamic crankshaft 5, and bent axle 5 and barrier film pressing plate 9 form toggle, and barrier film pressure
Plate 9 is rotatablely connected by bearing pin and barrier film 10, i.e., the rotary motion of bent axle 5 is changed into barrier film pressing plate 9 moves back and forth, in barrier film
Realize that barrier film 10 moves back and forth under the drive of pressing plate 9；Pilot sleeve 8, the pilot sleeve are additionally provided with described pump case 6
8 are enclosed on barrier film pressing plate 9, and relative slide is set barrier film pressing plate 9 with pilot sleeve 8；Described bent axle 5 passes through bearing 1 and bearing 4
It is supported in pump case 6；It is rotatablely connected between described bent axle 5 and barrier film pressing plate 9 by bearing.
As shown in Figure 2.Another specific embodiment, including pump case 6, motor 2, cam 16, spring 15, barrier film 10 and every
Mould plate 9；Motor 2 and barrier film 10 are installed on housing 6；Cam 16 is arranged on motor shaft；Barrier film 10 connects with barrier film pressing plate 9
Connect and can integrally move；Described spring 15 is set between barrier film pressing plate 9 and pump case 6, by spring force by barrier film pressure
The other end of plate 9 is pressed on cam 16；When motor 2 rotates with moving cam 16, barrier film pressing plate 9 is promoted to move up by cam 16, and by
Spring 15 promotes barrier film pressing plate 9 to reset.Be additionally provided with pilot sleeve 8 in described pump case 6, the pilot sleeve 8 be enclosed on every
On mould plate 9, relative slide is set barrier film pressing plate 9 with pilot sleeve 8；Described motor shaft and the key connection of cam 16, and lead to
Bearings are crossed in pump case.
Self-lubricating mode is used between pilot sleeve 8 and barrier film pressing plate 9, i.e. pilot sleeve 8 selects wear-resisting PTFE.
Pilot sleeve 8 with and pump case 6 be fastenedly connected.The motion of barrier film pressing plate 9 drives barrier film 10 to move, and passes through opening for check valve 12
Close, working medium is periodically sucked from import, and is discharged from outlet.With the change of motor speed and the change of diaphragm cavity volume
Realize the change of barrier film pump discharge.
Claims (6)
1. a kind of membrane pump, including pump case, motor, bent axle, barrier film pressing plate, barrier film,；Motor and barrier film are installed in housing
On；Bent axle is by bearing and bearings in pump case；Motor driven crank rotation, bent axle and barrier film pressing plate form crank and connected
Linkage, it is connected by bearing pin with barrier film press plate rotary, i.e., the rotary motion of bent axle is changed into the reciprocating motion of barrier film pressing plate,
Realize that barrier film moves back and forth under the drive of barrier film pressing plate.
2. a kind of membrane pump, including pump case, motor, cam, spring, barrier film and barrier film pressing plate；Motor and barrier film are installed in
On housing；Cam is arranged on motor shaft；Described spring is set between barrier film pressing plate and pump case, will be every by spring force
The mould plate other end is pressed on cam；During motor driven cam rotation, barrier film pressing plate is promoted to move up by cam, and pushed away by spring
Dynamic barrier film pressing plate resets.
A kind of 3. membrane pump as claimed in claim 1 or 2, it is characterised in that：Guide sleeve is additionally provided with described pump case 6
Cylinder 8, the pilot sleeve 8 is enclosed on barrier film pressing plate 9, and relative slide is set barrier film pressing plate 9 with pilot sleeve 8.
A kind of 4. membrane pump as claimed in claim 1 or 2, it is characterised in that：Described bent axle is by bearings in pump case
In body.
A kind of 5. membrane pump as claimed in claim 1 or 2, it is characterised in that：Pass through between described bent axle and barrier film connecting rod
Bearing is rotatablely connected.
A kind of 6. membrane pump as claimed in claim 1 or 2, it is characterised in that：Described motor shaft and cam key connection, and
By bearings in pump case.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710942334.4A CN107882723A (en) | 2017-10-11 | 2017-10-11 | A kind of Miniature diaphragm pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710942334.4A CN107882723A (en) | 2017-10-11 | 2017-10-11 | A kind of Miniature diaphragm pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107882723A true CN107882723A (en) | 2018-04-06 |
Family
ID=61781290
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710942334.4A Pending CN107882723A (en) | 2017-10-11 | 2017-10-11 | A kind of Miniature diaphragm pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107882723A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110566442A (en) * | 2018-12-21 | 2019-12-13 | 汤新红 | detachable portable diaphragm pump |
| CN113417838A (en) * | 2021-06-23 | 2021-09-21 | 江苏大学 | Micropump |
| CN113944614A (en) * | 2018-09-30 | 2022-01-18 | 深圳市大疆软件科技有限公司 | Diaphragm pump and agricultural unmanned aerial vehicle |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3513218A1 (en) * | 1984-04-16 | 1986-01-23 | Mitsubishi Denki K.K., Tokio/Tokyo | Diaphragm pump |
| JPS6176775A (en) * | 1984-09-20 | 1986-04-19 | Yokogawa Hokushin Electric Corp | Diaphragm pump |
| JPS627981A (en) * | 1985-07-03 | 1987-01-14 | Nitsukisou Eiko Kk | Driving apparatus for reciprocating type pump |
| US4824336A (en) * | 1983-12-26 | 1989-04-25 | Mitsubishi Denki Kabushiki Kaisha | Vacuum pump |
| CN201443049U (en) * | 2008-09-18 | 2010-04-28 | 常州江南电力环境工程有限公司 | Mechanical diaphragm metering pump |
| CN204783584U (en) * | 2015-06-11 | 2015-11-18 | 温岭市麒元汽配有限公司 | Diaphragm type vacuum pump |
| CN106795872A (en) * | 2015-05-18 | 2017-05-31 | 信浓绢糸株式会社 | Electrodynamic pump |
-
2017
- 2017-10-11 CN CN201710942334.4A patent/CN107882723A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4824336A (en) * | 1983-12-26 | 1989-04-25 | Mitsubishi Denki Kabushiki Kaisha | Vacuum pump |
| DE3513218A1 (en) * | 1984-04-16 | 1986-01-23 | Mitsubishi Denki K.K., Tokio/Tokyo | Diaphragm pump |
| JPS6176775A (en) * | 1984-09-20 | 1986-04-19 | Yokogawa Hokushin Electric Corp | Diaphragm pump |
| JPS627981A (en) * | 1985-07-03 | 1987-01-14 | Nitsukisou Eiko Kk | Driving apparatus for reciprocating type pump |
| CN201443049U (en) * | 2008-09-18 | 2010-04-28 | 常州江南电力环境工程有限公司 | Mechanical diaphragm metering pump |
| CN106795872A (en) * | 2015-05-18 | 2017-05-31 | 信浓绢糸株式会社 | Electrodynamic pump |
| CN204783584U (en) * | 2015-06-11 | 2015-11-18 | 温岭市麒元汽配有限公司 | Diaphragm type vacuum pump |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113944614A (en) * | 2018-09-30 | 2022-01-18 | 深圳市大疆软件科技有限公司 | Diaphragm pump and agricultural unmanned aerial vehicle |
| CN110566442A (en) * | 2018-12-21 | 2019-12-13 | 汤新红 | detachable portable diaphragm pump |
| CN113417838A (en) * | 2021-06-23 | 2021-09-21 | 江苏大学 | Micropump |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107882723A (en) | A kind of Miniature diaphragm pump | |
| EP2251545A1 (en) | A rotary compressor | |
| CN209800192U (en) | Rotary cylinder compressor | |
| CN214273878U (en) | Linear orbital ring for linear piston compressor | |
| CN2931850Y (en) | Horizontal inner through diaphragm pump | |
| CN201502501U (en) | Straight-line reciprocating piston compressor | |
| CN201144810Y (en) | Double cylinder non-lubricating oscillation air compressor | |
| CN115182863A (en) | Miniature plunger pump | |
| CN215170568U (en) | Piston type variable displacement oil pump | |
| CN205401117U (en) | Novel high -efficient rotary compressor | |
| CN201310457Y (en) | Connecting structure of piston and connecting rod of sealed type reciprocating compressor | |
| CN205446012U (en) | Superhigh pressure radial piston pump who contains compound self -lubricating bearing | |
| CN209196065U (en) | A kind of hydrostatic stepless speed change device | |
| CN208734500U (en) | A kind of balanced radial force two inclined plate plunger hydraulic electric-motor pump | |
| CN202628504U (en) | Positive displacement single-vane hydraulic pump | |
| CN204877819U (en) | Eccentric gyration power end structure of reciprocating pump | |
| CN220849965U (en) | Valve body auxiliary opening device of reciprocating diaphragm pump | |
| CN202628428U (en) | Oilless air compressor with multiple connecting rods, multiple air cylinders and multiple pistons | |
| CN105134539A (en) | Eccentric rotation power end structure of reciprocation pump | |
| CN204900179U (en) | Three plungers high pressure reciprocating pump | |
| CN216741880U (en) | Vertical air pump | |
| CN220909918U (en) | Double-bearing swash plate pump | |
| CN215633582U (en) | Five-cylinder piston vacuum pump | |
| CN110131093A (en) | Runner piston synchronous cyclotron mechanism | |
| CN214171917U (en) | Electric high-pressure lubricating vehicle and oil pumping unit lubricating oil hard pipeline |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | 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: 20180406 |
|
| RJ01 | Rejection of invention patent application after publication |