CN105443362A - Pneumatic diaphragm pump - Google Patents
Pneumatic diaphragm pump Download PDFInfo
- Publication number
- CN105443362A CN105443362A CN201410360200.8A CN201410360200A CN105443362A CN 105443362 A CN105443362 A CN 105443362A CN 201410360200 A CN201410360200 A CN 201410360200A CN 105443362 A CN105443362 A CN 105443362A
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- China
- Prior art keywords
- central shaft
- pneumatic drive
- membrane pump
- distribution device
- center shaft
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Abstract
The invention discloses a pneumatic diaphragm pump comprising a valve mechanism, a center shaft and a pair of diaphragms which are connected to two ends of the center shaft. Compressed gas, controlled by the valve mechanism, drives the center shaft to perform reciprocating motion. The pneumatic diaphragm pump also comprises a balance part which connects to the valve mechanism or the center shaft through a transmission mechanism and performs synchronous counter motion with the center shaft. The beneficial effects of the technical scheme are: vibration due to the motion of the center shaft is offset by the balance part which performs counter motion with the center shaft of the pneumatic diaphragm pump; the structure of the pneumatic diaphragm pump is simple and easy to put into effect.
Description
Technical field
The present invention relates to conveying mechanism, particularly relate to a kind of membrane pump with pneumatic drive.
Background technique
Membrane pump with pneumatic drive is a kind of Novel conveyer tool, and it adopts pressurized air to be power source, and for various corrosive liquids, the liquid of band particle, high viscosity, volatile, inflammable, hypertoxic liquid, all can be taken out light and exhaust, performance is well received.The main feature of this pump does not need water, the liquid of flowing can be pumped, some can be carried again to have the flowing medium of particle, flow can control according to the large freedom in minor affairs of air pressure, lift is adjustable (0-50 rice), bleed pressure need only be greater than 1kg/cm2 and can work, and there is compact, the feature of conveniently moving.
Larger vibrations can be produced during existing pneumatic diaphragm pump work, especially when low-speed running, for this situation, existing settling mode is bottom membrane pump with pneumatic drive, connect the larger base of weight, and directly increase Rubber shock-absorbing pad in base and membrane pump with pneumatic drive, but so since membrane pump with pneumatic drive feature that is small and exquisite and conveniently moving just do not existed.
Summary of the invention
For the problems referred to above that existing membrane pump with pneumatic drive exists, now provide a kind of membrane pump with pneumatic drive being intended to alleviate vibrations.
Concrete technological scheme is as follows:
A kind of membrane pump with pneumatic drive, comprise distribution device, central shaft, and be connected to the diaphragm at described central shaft two ends for a pair, it is reciprocating that described distribution device controls central shaft described in compressed gas-driven, wherein, also comprises an equalizing feature, described equalizing feature connects described distribution device or described central shaft by a driving mechanism, synchronous with described central shaft and oppositely move.
Preferably, described equalizing feature is trunnion shaft, and described trunnion shaft is parallel to described central shaft, and and oppositely to-and-fro motion synchronous with described central shaft.
Preferably, described equalizing feature is pendulum, described pendulum and oppositely reciprocally swinging synchronous with described central shaft.
Preferably, described driving mechanism is one second distribution device, and described second distribution device connects described distribution device.
Preferably, described driving mechanism is a drag link mechanism, and described drag link mechanism connects described central shaft.
The beneficial effect of technique scheme is:
By equalizing feature heterodromous with membrane pump with pneumatic drive central shaft, the vibrations produced when offsetting central shaft motion;
Structure is simply easy to implement.
Accompanying drawing explanation
Fig. 1 is the schematic diagram that a kind of membrane pump with pneumatic drive of the present invention adopts the embodiment of trunnion shaft;
Fig. 2 is the schematic diagram that a kind of membrane pump with pneumatic drive of the present invention adopts the embodiment of pendulum;
Fig. 3 is the logical construction schematic diagram that a kind of membrane pump with pneumatic drive of the present invention arranges the embodiment of speed measurement device.
Embodiment
Below in conjunction with the drawings and specific embodiments, the invention will be further described, but not as limiting to the invention.
A kind of membrane pump with pneumatic drive is provided in embodiments of the invention, as shown in Figures 1 and 2, comprises distribution device 1, central shaft 2, and being connected to the diaphragm 3 at central shaft 2 two ends for a pair, it is reciprocating that distribution device 1 controls compressed gas-driven central shaft 2, and this structure is existing pneumatic diaphragm pump structure.Wherein, also comprise an equalizing feature 4, equalizing feature 4 connects distribution device 1 or central shaft 2 by a driving mechanism 5, and synchronous with central shaft 2 and oppositely move.
In technique scheme, central shaft 2 in the lower horizontal to-and-fro motion of the control of distribution device 1, thus drives the action of a pair diaphragm 3, completes the action of the pumping liquid of membrane pump with pneumatic drive.When central shaft 2 to-and-fro motion, because the quality of central shaft 2 and movement velocity create the power pointing to central shaft 2 moving direction, this power causes the vibrations of membrane pump with pneumatic drive.When membrane pump with pneumatic drive run up do not reach resonant frequency time, because the break-in frequency of central shaft 2 is very high, make the power of different direction close to balance, thus alleviate the vibrations of membrane pump with pneumatic drive, but when membrane pump with pneumatic drive low-speed running, this vibrations will highly significant.Above-described embodiment is by increase by and heterodromous equalizing feature 4 synchronous with central shaft 2, and the power realized producing during central shaft 2 to-and-fro motion is offset, thus realizes eliminating the technique effect shaken.
In one preferred embodiment in, equalizing feature 4 can be trunnion shaft, and trunnion shaft can be parallel to central shaft 2 and arrange, and and oppositely to-and-fro motion synchronous with central shaft 2.
In further mode of execution, the quality of trunnion shaft can be made identical with central shaft 2, when trunnion shaft and central shaft 2 are can produce the power identical with central shaft 2 size during the motion of identical velocity reversal.Thus eliminate central shaft 2 completely and to move the vibrations brought.
In one preferred embodiment in, equalizing feature 4 can be pendulum, pendulum and oppositely reciprocally swinging synchronous with central shaft.Pendulum is arranged by the rotatable pendency of a rotating shaft, and driving mechanism 5 is by the actuated by cams pendulum reciprocally swinging in rotating shaft.
In one preferred embodiment in, driving mechanism 5 can be one second distribution device, second distribution device connect distribution device 1.Second distribution device can to the control that equalizing feature 4 is formed and central shaft 2 is reverse.
In one preferred embodiment in, driving mechanism 5 can be a drag link mechanism, drag link mechanism connect central shaft 2.When central shaft 2 to-and-fro motion, drag link mechanism promotes the power that equalizing feature 4 reversing motion realizes centre of equilibrium axle 2 generation.
In one preferred embodiment in, as shown in Figure 3, when driving mechanism 5 is the second distribution device, one speed measurement device 6 also can be set, speed measurement device 6 connects central shaft 2 and driving mechanism 5, the movement velocity of speed measurement device 6 inspection center axle 2, controls driving mechanism 5 when the movement velocity of central shaft 2 is greater than a threshold value and quits work.This mode of execution makes equalizing feature 4 only work when membrane pump with pneumatic drive low-speed running, then quits work when membrane pump with pneumatic drive runs up, thus reduces the power because of equalizing feature 4 consumption in operation, improves the working efficiency of membrane pump with pneumatic drive.
In further mode of execution, speed measurement device 6 also can connect distribution device 1 or compressed gas source (not in shown in figure), because the speed of membrane pump with pneumatic drive controls by bleed pressure, the pressure therefore detecting distribution device 1 or compressed gas source can obtain the movement velocity of central shaft 2.
In further mode of execution, can arrange a solenoid valve, speed measurement device 6 connects this solenoid valve 61, only need turn off solenoid valve 61 when needs make equalizing feature 4 quit work, and the second distribution device can be made to quit work, thus equalizing feature 4 is quit work.
In further mode of execution, also can comprise a storage element 7, in order to the mapping table of the running speed of the checkout value and membrane pump with pneumatic drive that store speed measurement device 6, when speed measurement device 6 obtains checkout value, in a preferred embodiment, by a control gear 8, according to the running speed of the membrane pump with pneumatic drive of corresponding checkout value in the checkout value inquiry storage element 7 of speed measurement device 6, and then judge whether the running speed of inquiring about the membrane pump with pneumatic drive obtained is greater than above-mentioned threshold value by control gear 8 again, above-mentioned threshold value can be stored in control gear 8, also can independently be stored in a storage element.
In a preferred embodiment, storage element 7 can be formed by storage chip or decoding circuit, in further mode of execution, storage element 7 can provide a write interface 71, writes in order to connect external equipment or revises the mapping table wherein stored in described storage element 7.
The foregoing is only preferred embodiment of the present invention; not thereby embodiments of the present invention and protection domain is limited; to those skilled in the art; should recognize and all should be included in the scheme that equivalent replacement done by all utilizations specification of the present invention and diagramatic content and apparent change obtain in protection scope of the present invention.
Claims (5)
1. a membrane pump with pneumatic drive, comprise distribution device, central shaft, and be connected to the diaphragm at described central shaft two ends for a pair, it is reciprocating that described distribution device controls central shaft described in compressed gas-driven, it is characterized in that, also comprise an equalizing feature, described equalizing feature connects described distribution device or described central shaft by a driving mechanism, synchronous with described central shaft and oppositely move.
2. membrane pump with pneumatic drive as claimed in claim 1, it is characterized in that, described equalizing feature is trunnion shaft, and described trunnion shaft is parallel to described central shaft, and and oppositely to-and-fro motion synchronous with described central shaft.
3. membrane pump with pneumatic drive as claimed in claim 1, it is characterized in that, described equalizing feature is pendulum, described pendulum and oppositely reciprocally swinging synchronous with described central shaft.
4. membrane pump with pneumatic drive as claimed in claim 1, it is characterized in that, described driving mechanism is one second distribution device, and described second distribution device connects described distribution device.
5. membrane pump with pneumatic drive as claimed in claim 1, it is characterized in that, described driving mechanism is a drag link mechanism, and described drag link mechanism connects described central shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410360200.8A CN105443362B (en) | 2014-07-25 | 2014-07-25 | A kind of pneumatic diaphragm pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410360200.8A CN105443362B (en) | 2014-07-25 | 2014-07-25 | A kind of pneumatic diaphragm pump |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105443362A true CN105443362A (en) | 2016-03-30 |
| CN105443362B CN105443362B (en) | 2018-04-06 |
Family
ID=55553909
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410360200.8A Active CN105443362B (en) | 2014-07-25 | 2014-07-25 | A kind of pneumatic diaphragm pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105443362B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105889047A (en) * | 2016-05-13 | 2016-08-24 | 安庆市津海工业产品设计有限公司 | Operation rotating speed and flow rate control module of pneumatic diaphragm pump |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1211685A (en) * | 1997-09-18 | 1999-03-24 | Yts株式会社 | Diaphragm pump |
| CN2577005Y (en) * | 2002-10-11 | 2003-10-01 | 北京汇知机电设备有限责任公司 | Symmetric balanced metal diaphragm compressor |
| US20040197211A1 (en) * | 2003-04-03 | 2004-10-07 | Shigeru Murata | Reciprocating fluid transfer pump |
| CN101025151A (en) * | 2007-01-30 | 2007-08-29 | 上海江浪流体机械制造有限公司 | Pneumatic double diaphragm pump |
| CN102257263A (en) * | 2008-10-20 | 2011-11-23 | 圣波尔股份有限公司 | Balanced multiple groupings of beta stirling machines |
| CN102434279A (en) * | 2011-11-28 | 2012-05-02 | 浙江吉利汽车研究院有限公司 | Combustion engine without crank shaft connection rod |
| CN102577263A (en) * | 2009-10-29 | 2012-07-11 | 惠普发展公司，有限责任合伙企业 | Switch that monitors for fingerprinted packets |
-
2014
- 2014-07-25 CN CN201410360200.8A patent/CN105443362B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1211685A (en) * | 1997-09-18 | 1999-03-24 | Yts株式会社 | Diaphragm pump |
| CN2577005Y (en) * | 2002-10-11 | 2003-10-01 | 北京汇知机电设备有限责任公司 | Symmetric balanced metal diaphragm compressor |
| US20040197211A1 (en) * | 2003-04-03 | 2004-10-07 | Shigeru Murata | Reciprocating fluid transfer pump |
| CN101025151A (en) * | 2007-01-30 | 2007-08-29 | 上海江浪流体机械制造有限公司 | Pneumatic double diaphragm pump |
| CN102257263A (en) * | 2008-10-20 | 2011-11-23 | 圣波尔股份有限公司 | Balanced multiple groupings of beta stirling machines |
| CN102577263A (en) * | 2009-10-29 | 2012-07-11 | 惠普发展公司，有限责任合伙企业 | Switch that monitors for fingerprinted packets |
| CN102434279A (en) * | 2011-11-28 | 2012-05-02 | 浙江吉利汽车研究院有限公司 | Combustion engine without crank shaft connection rod |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105889047A (en) * | 2016-05-13 | 2016-08-24 | 安庆市津海工业产品设计有限公司 | Operation rotating speed and flow rate control module of pneumatic diaphragm pump |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105443362B (en) | 2018-04-06 |
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