CN202789454U - Mechanical diaphragm type metering pump - Google Patents
Mechanical diaphragm type metering pump Download PDFInfo
- Publication number
- CN202789454U CN202789454U CN201220479486.8U CN201220479486U CN202789454U CN 202789454 U CN202789454 U CN 202789454U CN 201220479486 U CN201220479486 U CN 201220479486U CN 202789454 U CN202789454 U CN 202789454U
- Authority
- CN
- China
- Prior art keywords
- piston rod
- eccentric shaft
- type metering
- metering pump
- diaphragm type
- 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.)
- Expired - Lifetime
Links
Images
Landscapes
- Reciprocating Pumps (AREA)
Abstract
The utility model relates to a mechanical diaphragm type metering pump, which comprises a box body, a piston rod, a pump head seat, a diaphragm and a pump head component that are connected in sequence, and also comprises a motor that penetrates through an eccentric shaft of the box body and is fixedly connected with the eccentric shaft, wherein the piston rod comprises a piston end contacted with a bearing of the eccentric shaft, and a fixed end penetrating through a shaft sleeve hole of the pump head seat and being fixedly connected with the diaphragm, the pump head seat and the pump head component are fixedly connected so as to seal the diaphragm inside, and the eccentric shaft is provided with more than two rolling bearings that are contacted with the piston rod and used for driving the piston rod to move. Due to the arrangement of more than two rolling bearings, the extrusion force of the piston rod applied on the rolling bearings can be distributed to a plurality of rolling bearings, so that the force born by each rolling bearing is smaller than the force born by the rolling bearing in traditional mechanical diaphragm type metering pump, therefore, the service life of the rolling bearing is prolonged.
Description
Technical field
The utility model relates to the metering pump field, relates in particular to a kind of mechanical diaphragm type metering pump.
Background technique
Existing mechanical diaphragm type metering pump generally is grouped into by drive part, eccentric adjustment part and flow passage, and the eccentric adjustment part is comprised of piston rod and spring, and the overcurrent part is comprised of diaphragm, pump head and import and export safety check.This type of mechanical diaphragm type metering pump flow is smaller, if increase the flow of mechanical diaphragm type metering pump, can pass through to improve the area of the rotating speed of motor, the throw of eccentric that increases rotary bearing on the eccentric shaft, increase diaphragm etc.On increasing eccentric shaft during the throw of eccentric of rotary bearing, because existing eccentric shaft only is provided with a rotary bearing usually, the power that rotary bearing bears is smaller, eccentric shaft axle and the centre distance between the axle of assembling rotary bearing are larger on the eccentric shaft, the eccentric distance of rotary bearing running is larger, and it is also just larger to make rotary bearing be subject to the restoring force of piston rod, like this, rotary bearing damages easily, and this rotary bearing life-span is low.And when motor speed is too fast, can make the frequency that moves around of diaphragm too fast, like this, diaphragm can be easy to damage.In addition, when only increasing the area of diaphragm, the power that the large diaphragm return motion of area needs also can be larger, but the power of bearing because of rotary bearing is limited, the power that passes to the diaphragm return motion is also limited, causes occurring the phenomenon that piston rod draws motionless large-area motion of membrane.
The model utility content
Main purpose of the present utility model provides mechanical diaphragm type metering pump, particularly aims to provide the non-damageable mechanical diaphragm type metering pump of a kind of rotary bearing.
The mechanical diaphragm type metering pump that the utility model provides comprises the casing, piston rod, pump head seat, diaphragm and the pump head component that connect successively, also comprises and the described motor that is arranged in the eccentric shaft in the described casing and is fixedly connected with described eccentric shaft; Wherein, described piston rod comprises the piston end that contacts with the bearing of described eccentric shaft, and the fixed end that is arranged in the axle sleeve hole of described pump head seat, is fixedly connected with described diaphragm; Described pump head seat is fixedly connected with pump head component, with described diaphragm seal interior; Described eccentric shaft is provided with more than two and contacts with described piston rod, is used for driving the rotary bearing of described piston rod movement.
Preferably, this mechanical diaphragm type metering pump also comprises and is socketed on the described piston rod, is used for controlling described piston rod with respect to the spring of the displacement of described pump head seat, an end of this spring and described pump head seat butt, the piston end butt of the other end and described piston rod.
Preferably, the afterbody of described eccentric shaft is provided with the first rigid bearing, and position corresponding with described clutch shaft bearing on described casing is provided be used to the bearing hole that supports described the first rigid bearing.
Preferably, the head of described eccentric shaft is provided with the second rigid bearing, and the position corresponding with described the second rigid bearing is provided be used to the circular groove that supports described the second rigid bearing in the described casing.
Preferably, also be provided with between described casing and the described motor be used to being connected described casing and be connected the connection base with motor, this connection base is provided with hollow portion, and this hollow portion is used for the part that accommodating described motor is connected with described eccentric shaft, and the afterbody of described eccentric shaft.
Preferably, this mechanical diaphragm type metering pump comprises that also an end is arranged in the adjusting strut in the described casing, and with the adjusting knob that is socketed in the described adjusting strut the other end outside, described adjusting strut passes described casing and contacts with described piston rod, controls described adjusting strut by described knob and inserts length in the described casing.
Preferably, establish a tapped through hole in the described adjusting knob, the outer surface of an end of described adjusting strut and the socket of described adjusting knob is provided with screw thread, and this screw thread cooperates with described tapped through hole described adjusting knob is connected with the adjusting strut.
Preferably, the diameter for two above rotary bearings that drive described piston rod movement is identical on the described eccentric shaft.
By plural rotary bearing is set, the extruding force of the piston rod that rotary bearing is subject to is distributed in a plurality of rotary bearings, like this, it is little that the power that each rotary bearing is subject to is compared the power that the rotary bearing in traditional mechanical diaphragm type metering pump bears, thereby rotary bearing is not fragile, so improved the life-span of rotary bearing.In addition, owing to be provided with a plurality of rotary bearings, the power that a plurality of rotary bearings can bear piston rod is larger, therefore, eccentric shaft that can the larger centre distance of relative set is to pass to the larger power of diaphragm, at this moment, just the large diaphragm of Area comparison can be set in this mechanical diaphragm type metering pump accordingly, and adaptive large volume pump head component with it.Like this, when large-area diaphragm to-and-fro motion one-period, the liquid that sucks when sucking the flowing fluid ratio small size motion of membrane in the pump head component is many, thereby reaches the effect that improves whole mechanical diaphragm type metering pump flow.
Description of drawings
Fig. 1 is the blast structural representation of the utility model mechanical diaphragm type metering pump;
Fig. 2 is the sectional structure schematic representation of the utility model mechanical diaphragm type metering pump;
Fig. 3 is the structural representation of piston rod in the utility model mechanical diaphragm type metering pump;
Fig. 4 is the structural representation of eccentric shaft in the utility model mechanical diaphragm type metering pump.
The realization of the utility model purpose, functional characteristics and advantage are described further with reference to accompanying drawing in connection with embodiment.
Embodiment
Be described further with regard to the technical solution of the utility model below in conjunction with drawings and the specific embodiments.Should be appreciated that specific embodiment described herein only in order to explaining the utility model, and be not used in restriction the utility model.
With reference to Fig. 1, Fig. 2 and Fig. 3, Fig. 1 is the blast structural representation of the utility model mechanical diaphragm type metering pump; Fig. 2 is the sectional structure schematic representation of the utility model mechanical diaphragm type metering pump; Fig. 3 is the structural representation of piston rod in the utility model mechanical diaphragm type metering pump.
In the present embodiment, mechanical diaphragm type metering pump comprises successively casing 10, piston rod 20, pump head seat 31, diaphragm 32 and the pump head component 33 that connects, also comprise be arranged in casing 10 in eccentric shaft 40 and the motor 50 that is fixedly connected with this eccentric shaft 40; Wherein, piston rod 20 comprises the piston end 201 that contacts with the bearing of eccentric shaft 40, and the fixed end 202 that is arranged in the axle sleeve hole of pump head seat 31, is fixedly connected with diaphragm 32; Pump head seat 31 is fixedly connected with pump head component 33, in diaphragm 32 is sealed in; Eccentric shaft 40 is provided with more than two and contacts rotary bearing 401 with piston rod 20, and this rotary bearing 401 is used for driving piston rod 20 motions.
After starting, motor 50 drives eccentric shaft 40 rotations, thereby drive rotary bearing 401 eccentric rotary on the eccentric shaft 40, this eccentric rotary passes to piston rod 20, makes piston rod 20 motions, moves reciprocatingly thereby drive the diaphragm 32 that is connected with fixed end 202 in this piston rod 20.When diaphragm 32 near a side shifting of pump head seat 31 time, make the pressure in the pump head component 33 form gradually vacuum, when the pressure in the pump head component 33 was lower than the suction pressure of this pump head component 33, liquid just entered in the pump head component 33 from suction port.When diaphragm 32 to away from a lateral movement of pump head seat 31 time, this moment, suction port was closed, expulsion valve is opened, liquid is just discharged under the promotion of diaphragm.So repeatedly, like this, liquid is just constantly sucked in the pump head component 33, flows out from expulsion valve again.
By plural rotary bearing 401 is set, the extruding force of the piston rod 20 that rotary bearing 401 is subject to is distributed in a plurality of rotary bearings 401, like this, it is little that the power that each rotary bearing 401 is subject to is compared the power that the rotary bearing 401 in traditional mechanical diaphragm type metering pump bears, thereby rotary bearing 401 is not fragile, so improved the life-span of rotary bearing 401.In addition, owing to be provided with a plurality of rotary bearings 401, the power that a plurality of rotary bearings 401 can bear piston rod is larger, therefore, eccentric shaft that can the larger centre distance of relative set, improve stroking distance from, in order to pass to the larger power of diaphragm 32, at this moment, just the large diaphragm of Area comparison 32 can be set in this mechanical diaphragm type metering pump accordingly, and adaptive large volume pump head component 33 with it.Like this, when large-area diaphragm 32 to-and-fro motion one-period, the liquid that sucks when sucking flowing fluid ratio small size diaphragm 32 motion in the pump head component 33 is many, thereby reaches the effect that improves whole mechanical diaphragm type metering pump flow.
Based on above-described embodiment, this mechanical diaphragm type metering pump also comprises and is socketed on the piston rod 20, is used for control piston bar 20 with respect to the spring 60 of the displacement of pump head seat 31, one end of this spring 60 and pump head seat 31 butts, piston end 201 butts of the other end and piston rod 20.Spring 60 is arranged between pump head seat 31 and the piston end 201, when piston rod 20 to away from a lateral movement of casing 10 time, can be with dynamic diaphragm 32 also to the side shifting away from casing 10, and pump head seat 31 is fixing with casing 10, spring 60 is just compressed like this.And can elastic strain occur during spring 60 compression and produce elastic force, this elastic force is pushed piston rod 20 to casing 10 interior lateral movements, move on close pump head seat 31 directions thereby drive the diaphragm 32 of fixing with piston rod 20, after piston rod 20 moved a certain distance, spring 60 was returned to normal shape.Then, eccentric shaft 40 rotates to when rotary bearing 401 contacts with piston end 201, and rotary bearing 401 passes to piston rod 20 with power, makes piston rod 20 can overcome spring 60 elastic force and is used for driving diaphragm 32 to the lateral movement away from pump head seat 31.So repeatedly, like this, liquid just constantly is inhaled in the pump head component 33 and flows out from export pipeline.By spring 60 is set, when diaphragm 32 to away from casing 10 1 lateral movement the time, because the restoring force effect of spring 60 makes piston rod 20 be with again dynamic diaphragm 32 near casing 10 1 lateral movements, make the to-and-fro motion of diaphragm 32 more smooth.
With reference to Fig. 1 and Fig. 4, Fig. 4 is the structural representation of eccentric shaft in the utility model mechanical diaphragm type metering pump.
In the above-described embodiments, the afterbody of eccentric shaft 40 can also be provided with the first rigid bearing 402, and simultaneously, the position corresponding with clutch shaft bearing is provided with for the bearing hole (not shown) that supports the first rigid bearing 402 on casing 10.Simultaneously, can also be provided with at the head of eccentric shaft 40 the second rigid bearing 403, the position corresponding with the second rigid bearing 403 is provided with the circular groove (not shown) for support the second rigid bearing 403 in the casing 10.When motor 50 drives eccentric shaft 40 rotation, when the restoring force of spring 60 passes to piston rod 20, the piston end 201 of this piston rod 20 passes to power again the rotary bearing 40 that contacts with piston end 201, makes eccentric shaft 40 stressed diametrically, and then it is influenced that eccentric shaft 40 is rotated.By the first rigid bearing 402 and the second rigid bearing 403 are set, head and the afterbody of eccentric shaft 40 can be fixed on the casing 10 firmly, thereby make eccentric shaft 40 more stable, reliable in rotary course.
In the above-described embodiments, also be provided with between casing 10 and the motor 50 for what connect box 10 was connected with motor and be connected base 70, this connection base 70 is provided with hollow portion 701, and this hollow portion 701 is used for the part that accommodating motor 50 is connected with eccentric shaft 40, and the afterbody of eccentric shaft 40.The casing 10 of tradition mechanical diaphragm type metering pump is the integral type setting with being connected base 70, and setting-up eccentricity axle 40 is very inconvenient.By casing 10 be connected base 70 split settings, during setting-up eccentricity axle 40, only use eccentric shaft 40 is enclosed within on the casing 10, more fixing successively casing 10, connect base 70 and motor 50 and be fixed up just passablely, it is convenient, simple that the process of setting-up eccentricity axle 40 becomes.
Based on above-described embodiment, this mechanical diaphragm type metering pump can also arrange an end and be arranged in adjusting strut 80 in the casing 10, and be socketed in the adjusting knob 90 of regulating strut 80 the other ends outside, wherein, regulate strut 80 and pass casing 10 and contact with piston rod 20, by adjusting knob 90 can the regulating and controlling strut the interior length of 80 insertion casings 10.It is after 90s to turn adjusting knob, the length of regulating in the strut 80 insertion casings 10 is changed, thereby changed the position that piston rod 20 resets, and then change the reciprocating stroke size of diaphragm 32, reaches the flow of this mechanical diaphragm type metering pump of change.By adjusting knob 90 being set and regulating strut 80, can reach the purpose of further control metering pump flow.
In the above-described embodiments, adjusting knob 90 can in establish a tapped through hole (not shown), the outer surface of regulating an end of strut 80 and adjusting knob 90 sockets is provided with screw thread 801, and this screw thread 801 cooperates with tapped through hole adjusting knob 90 is connected with adjusting strut 80.Tighten adjusting knob 90 and make adjusting strut 80 insert the increase of casings 10 length, thereby reduce the distance that piston rod 20 resets, and then reduce the flow of mechanical diaphragm type metering pump; Unclamp adjusting knob 90 and make adjusting strut 80 insert the minimizing of casings 10 length, thereby increase the distance that piston rod 20 resets, reach the purpose that increases the mechanical diaphragm type metering pump flow.Regulate the length that strut 80 inserts in the casing 10 by screw connection structure is set, make this mechanical diaphragm type metering pump Flow-rate adjustment more accurate.
In the above-described embodiments, can be made as the diameter that is used for two above rotary bearings 401 of drive piston rod 20 motions on the eccentric shaft 40 identical.Diameter by rotary bearing 401 is set is identical, has not only improved the versatility of rotary bearing 401, the radius that is used for installing several sections axles of rotary bearing 401 on the eccentric shaft 40 can be made as unanimously simultaneously, is conducive to the processing of eccentric shaft 40.
The above only is preferred embodiment of the present utility model; be not so limit claim of the present utility model; every equivalent structure transformation that utilizes the utility model specification and accompanying drawing content to do; or directly or indirectly be used in other relevant technical fields, all in like manner be included in the scope of patent protection of the present utility model.
Claims (8)
1. a mechanical diaphragm type metering pump is characterized in that, comprises the casing, piston rod, pump head seat, diaphragm and the pump head component that connect successively, also comprises and the described motor that is arranged in the eccentric shaft in the described casing and is fixedly connected with described eccentric shaft; Wherein, described piston rod comprises the piston end that contacts with the bearing of described eccentric shaft, and the fixed end that is arranged in the axle sleeve hole of described pump head seat, is fixedly connected with described diaphragm; Described pump head seat is fixedly connected with pump head component, with described diaphragm seal interior; Described eccentric shaft is provided with more than two and contacts with described piston rod, is used for driving the rotary bearing of described piston rod movement.
2. mechanical diaphragm type metering pump as claimed in claim 1, it is characterized in that, also comprise and be socketed on the described piston rod, be used for controlling described piston rod with respect to the spring of the displacement of described pump head seat, one end of this spring and described pump head seat butt, the piston end butt of the other end and described piston rod.
3. mechanical diaphragm type metering pump as claimed in claim 2 is characterized in that, the afterbody of described eccentric shaft is provided with the first rigid bearing, and position corresponding with described clutch shaft bearing on described casing is provided be used to the bearing hole that supports described the first rigid bearing.
4. mechanical diaphragm type metering pump as claimed in claim 3, it is characterized in that, the head of described eccentric shaft is provided with the second rigid bearing, and the position corresponding with described the second rigid bearing is provided be used to the circular groove that supports described the second rigid bearing in the described casing.
5. mechanical diaphragm type metering pump as claimed in claim 4, it is characterized in that, also be provided with between described casing and the described motor be used to being connected described casing and be connected the connection base with motor, this connection base is provided with hollow portion, this hollow portion is used for the part that accommodating described motor is connected with described eccentric shaft, and the afterbody of described eccentric shaft.
6. mechanical diaphragm type metering pump as claimed in claim 5, it is characterized in that, comprise that also an end is arranged in the adjusting strut in the described casing, and with the adjusting knob that is socketed in the described adjusting strut the other end outside, described adjusting strut passes described casing and contacts with described piston rod, controls described adjusting strut by described adjusting knob and inserts length in the described casing.
7. mechanical diaphragm type metering pump as claimed in claim 6, it is characterized in that, establish a tapped through hole in the described adjusting knob, the outer surface of one end of described adjusting strut and the socket of described adjusting knob is provided with screw thread, and this screw thread cooperates with described tapped through hole described adjusting knob is connected with the adjusting strut.
8. such as each described mechanical diaphragm type metering pump in the claim 1 to 7, it is characterized in that the diameter for two above rotary bearings that drive described piston rod movement on the described eccentric shaft is identical.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220479486.8U CN202789454U (en) | 2012-09-19 | 2012-09-19 | Mechanical diaphragm type metering pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220479486.8U CN202789454U (en) | 2012-09-19 | 2012-09-19 | Mechanical diaphragm type metering pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202789454U true CN202789454U (en) | 2013-03-13 |
Family
ID=47816726
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201220479486.8U Expired - Lifetime CN202789454U (en) | 2012-09-19 | 2012-09-19 | Mechanical diaphragm type metering pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202789454U (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103541879A (en) * | 2013-11-12 | 2014-01-29 | 徐功 | Multi-channel pump |
| CN104405623A (en) * | 2014-11-19 | 2015-03-11 | 太仓三山环保机械有限公司 | ST (system test) type mechanical diaphragm metering dosing pump |
| CN104564581A (en) * | 2015-01-22 | 2015-04-29 | 太仓三山环保机械有限公司 | SG-type mechanically actuated diaphragm metering and dosing pump |
| CN105443339A (en) * | 2015-11-27 | 2016-03-30 | 苏州巧泰精密机械有限公司 | Reciprocating driving resetting device of metering pump |
| CN106150961A (en) * | 2016-08-19 | 2016-11-23 | 桂林福冈新材料有限公司 | A kind of energy-saving type dosing pump |
| CN106224194A (en) * | 2016-08-19 | 2016-12-14 | 桂林福冈新材料有限公司 | A kind of diaphragm metering pump |
| CN107228058A (en) * | 2017-05-15 | 2017-10-03 | 广州供电局有限公司 | Portable pump |
| CN108521784A (en) * | 2017-09-28 | 2018-09-11 | 深圳市大疆创新科技有限公司 | Pump installation and plant protection drone with it |
-
2012
- 2012-09-19 CN CN201220479486.8U patent/CN202789454U/en not_active Expired - Lifetime
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103541879A (en) * | 2013-11-12 | 2014-01-29 | 徐功 | Multi-channel pump |
| CN103541879B (en) * | 2013-11-12 | 2017-02-08 | 徐功 | Multi-channel pump |
| CN104405623A (en) * | 2014-11-19 | 2015-03-11 | 太仓三山环保机械有限公司 | ST (system test) type mechanical diaphragm metering dosing pump |
| CN104564581A (en) * | 2015-01-22 | 2015-04-29 | 太仓三山环保机械有限公司 | SG-type mechanically actuated diaphragm metering and dosing pump |
| CN105443339A (en) * | 2015-11-27 | 2016-03-30 | 苏州巧泰精密机械有限公司 | Reciprocating driving resetting device of metering pump |
| CN106150961A (en) * | 2016-08-19 | 2016-11-23 | 桂林福冈新材料有限公司 | A kind of energy-saving type dosing pump |
| CN106224194A (en) * | 2016-08-19 | 2016-12-14 | 桂林福冈新材料有限公司 | A kind of diaphragm metering pump |
| CN107228058A (en) * | 2017-05-15 | 2017-10-03 | 广州供电局有限公司 | Portable pump |
| CN107228058B (en) * | 2017-05-15 | 2019-08-16 | 广州供电局有限公司 | Portable pump |
| CN108521784A (en) * | 2017-09-28 | 2018-09-11 | 深圳市大疆创新科技有限公司 | Pump installation and plant protection drone with it |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202789454U (en) | Mechanical diaphragm type metering pump | |
| CN204003319U (en) | A kind of multistage compression formula air compressor | |
| CN109441758A (en) | A kind of hydraulic pump with decrease of noise functions | |
| CN202937417U (en) | Oblique shaft type axial plunger pump/motor with novel-structure plunger | |
| CN208364327U (en) | A kind of Multi-purpose energy-saving vacuum pump | |
| CN103850910A (en) | Same-plane multi-cylinder multi-level cam and bearing combined connecting rod type compressor | |
| CN104033352B (en) | A kind of natural gas supply sub-station compressor | |
| CN209539519U (en) | A kind of hydraulic pump with decrease of noise functions | |
| CN202091139U (en) | High-pressure bidirectional miniature electric air pump | |
| CN204126828U (en) | Gyro disc hydraulic pump | |
| CN204126841U (en) | A kind of air pump structure | |
| CN202326073U (en) | Internal control variable displacement compressor | |
| CN203809232U (en) | Multi-cylinder bearing-gear-combined connecting rod type coplanar compressor | |
| CN104047826B (en) | A kind of stage compression formula air compressor machine | |
| CN201221466Y (en) | Reciprocating apparatus of plunger pump | |
| CN210769180U (en) | Piston water injection device | |
| CN209725077U (en) | A kind of controllable unidirectional frcition damper of double reinforcements | |
| CN203146258U (en) | Plunger pump of single-cylinder plug cylinder for experiment | |
| CN202300986U (en) | High-pressure pump for connecting rod | |
| CN107165798B (en) | Oil well dosing pump | |
| CN202001243U (en) | High-pressure constant flow pump of liquid chromatograph | |
| CN103591071B (en) | A kind of pneumatic proportional pressure valve driven by linear motor | |
| CN202768322U (en) | Novel vacuum pump | |
| CN202628428U (en) | Oilless air compressor with multiple connecting rods, multiple air cylinders and multiple pistons | |
| CN105443337A (en) | Spinning top disc hydraulic pump |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130313 |
|
| CX01 | Expiry of patent term |