CN206988076U - A kind of Zero-leakage hydraulic diaphragm metering pump - Google Patents
A kind of Zero-leakage hydraulic diaphragm metering pump Download PDFInfo
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- CN206988076U CN206988076U CN201720950817.4U CN201720950817U CN206988076U CN 206988076 U CN206988076 U CN 206988076U CN 201720950817 U CN201720950817 U CN 201720950817U CN 206988076 U CN206988076 U CN 206988076U
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Abstract
Metering pump technical field is the utility model is related to, specifically a kind of Zero-leakage hydraulic diaphragm metering pump.Including motor, speed changer and pump head, speed changer is Manual adjustable planetary stageless speed variator；Pump head includes driving shaft and the pump housing, driving shaft is provided with eccentric shaft, the plunger mounting cylinder perpendicular to driving shaft is provided with the pump housing, being provided with plunger mounting cylinder can the plunger that slides of linear reciprocation, and one end that plunger is located in the pump housing is hinged with the collar, the one end of plunger mounting cylinder away from the pump housing is fixed with diaphragm plate successively, valve plate and pump cover, diaphragm plate is provided with barrier film, inlet opening and outage are offered on valve plate, feed liquor check valve is provided with inlet opening, discharge opeing check valve is provided with outage, pump cover is provided with the pumped (conveying) medium import connected with inlet opening and the pumped (conveying) medium connected with outage outlet.The utility model is compact-sized, small in volume, maintains easily, and adjusts flow simple and fast.
Description
Technical field
Metering pump technical field is the utility model is related to, specifically a kind of Zero-leakage hydraulic diaphragm metering pump.
Background technology
Measuring pump be it is a kind of can meet various strict technological process needs, flow can in the range of 20-100% nothing
Level regulation, for conveying a kind of special displacement pump of liquid, particularly corrosive liquids.Its outstanding feature is can to keep and arrange
Go out the unrelated constant flow rate of pressure.The function that can complete to convey, measure and adjust simultaneously using measuring pump, so as to simplify production
Technological process.Using more measuring pumps, several media can be inputted in technological process by actual ratio and be mixed.Due to it
Nowadays the protrusion of itself, measuring pump have been widely used in each industrial circle such as petrochemical industry, pharmacy, food, its is supporting
Property it is strong, adapt to the extensive advantage of medium and particularly loom large.
Measuring pump of the prior art typically by motor through shaft coupling drive worm screw and by worm gear reducer make main shaft and partially
Heart crop rotation gyration, driven by eccentric wheel reciprocating in the slidable adjustment seat of arcuate connecting rod.When plunger, dead point is moved backward
When, vacuum is gradually formed in pump chamber, inlet valve is opened, and sucks liquid.When plunger forward move by dead point, now inlet valve closes
Close, dump valve is opened, and liquid is discharged when plunger is to further move.Pump it is reciprocal along also work to be formed it is continuous have pressure,
Quantitative discharging liquid.Not only volume is larger for arch bar linkage structure, complicated, and barrier film stress undue concentration, service life is short,
When adjusting flow, the Flow-rate adjustment of measuring pump of the prior art is realized by regulation motor rotating speed or pilot plunger stroke,
Former method need to be adjusted at the electric cabinet of Central Control Room or measuring pump, it is impossible to be adjusted in itself in measuring pump, latter solution is led to
Cross and change spacing between arcuate connecting rod, change plunger shift motion in pump chamber and determine the size of flow, to measuring pump in itself
The required precision of part is higher, and deviation easily occurs.
Utility model content
The utility model aims to provide Zero-leakage hydraulic diaphragm metering pump that is a kind of compact-sized and can facilitating Flow-rate adjustment.
In order to solve the above technical problems, the technical solution adopted in the utility model is：A kind of Zero-leakage hydraulic barrier film meter
Measure pump, including motor, speed changer and pump head, the speed changer is Manual adjustable planetary stageless speed variator, speed changer it is defeated
Enter axle to be fixedly connected with the output shaft of motor, the end set of the input shaft of speed changer has sun gear, pinch roller and spring, along speed change
Device casing inner periphery, which is provided with, determines ring and cam, is folded between sun gear and pinch roller and is formed on the inside of the planetary gear of speed changer
Friction pair, outside, which is folded in, determines between ring and cam and is formed friction pair, and the central shaft of planetary gear passes through slipper bearing and speed change
The planet carrier connection of device, planet carrier are fixedly connected with the output shaft of speed changer, and the speed changer also includes a manual governing list
Member, the manual governing unit include speed adjustment screw, the handwheel for being fixed on speed adjustment screw end, coordinated on speed adjustment screw
Speed governing block and speed regulating handle, one end of the speed regulating handle is arranged in speed governing block by ball head structure, the other end by screw thread with
Cam is fixed；The pump head includes driving shaft and the pump housing, one end of the driving shaft be arranged on outside the pump housing and with the speed change
The output shaft drive connection of device, the other end of driving shaft are arranged on pump body and are provided with eccentric shaft, and being provided with eccentric shaft can
The collar of rotation, is provided with the plunger mounting cylinder perpendicular to driving shaft on the pump housing, be provided with plunger mounting cylinder can straight line it is past
The plunger slided again, and one end that plunger is located in the pump housing is hinged with the collar, the one end of plunger mounting cylinder away from the pump housing
Diaphragm plate, valve plate and pump cover are fixed with successively, and fluid chamber is formed between plunger and diaphragm plate in plunger mounting cylinder,
Pumped (conveying) medium room is formed between diaphragm plate and valve plate, through hole is offered on diaphragm plate and is located at pumped (conveying) medium room in the through hole
Side, which is provided with, to be used to obstruct the barrier film that fluid chamber connects with pumped (conveying) medium room, is offered on the valve plate and pumped (conveying) medium respectively
The inlet opening and outage of room connection, the feed liquor check valve to pumped (conveying) medium room feed liquor is provided with inlet opening, in outage
Provided with the discharge opeing check valve from the discharge opeing of pumped (conveying) medium room, the pump cover is provided with the pumped (conveying) medium import connected with the inlet opening
And the pumped (conveying) medium outlet connected with the outage.
Preferably, the plunger is hollow tubular, and is provided with barrier film in plunger cavity and resets deviation correction mechanism, and the barrier film is answered
Position deviation correction mechanism include be set in plunger hollow guiding cylinder, be set in hollow guiding cylinder spring base, be set in spring
Back-moving spring on seat and plunger is fastened on close to the port position of barrier film one end and for preventing the hollow guiding cylinder, bullet
The jump ring that spring abutment back-moving spring is deviate from from plunger, the spring base lead to after the mesopore of the jump ring is passed through close to one end of barrier film
The center for crossing helicitic texture and barrier film connects.
Preferably, the plunger is hinged by bearing pin and the guide being fixed on the collar with the collar.
Preferably, be provided with mounting flange in the described one end of plunger mounting cylinder away from the pump housing, the diaphragm plate, valve plate with
And the outer rim of pump cover offers bolt hole, and diaphragm plate, valve plate and pump cover pass through the first bolt and the mounting flange
It is fixedly connected.
Preferably, the diaphragm plate is individually fixed by the second bolt and the mounting flange, and the valve plate passes through the 3rd
Bolt is individually fixed with the diaphragm plate.
Preferably, O-ring seals are equipped with close to the side of pump cover in the inlet opening and outage of the valve plate.
Preferably, the aperture of the inlet opening is more than the aperture of outage.
Preferably, access hole is offered on the pump housing, and dismountable sealing strip and cover plate are provided with access hole position.
Beneficial effect
The utility model sets planetary buncher between motor and pump head, and adjusting speed changer by handwheel exports
The rotating speed of axle realizes the regulation to measuring pump discharge, simple in construction, it is easy to accomplish, enable the Flow-rate adjustment of measuring pump in pump sheet
Carried out on body, and the speed changer intensity is high, noise is small, and slewing range is big, and adjusting speed accuracy is high, and combination ability is strong, is allowing to load
In the case of, the invariablenes turning speed of setting, full secret envelope, it is applicable to moist, more dirt, has the working environment of mild corrosion.
Plunger of the present utility model drives linear reciprocating motion by eccentric shaft, instead of arch of the prior art and connects
Bar it is compact so that head separation structure of the present utility model is simple, so as to have a small volume, and it is easy to maintain the advantages of.
Barrier film is provided with preferred embodiment, between plunger and barrier film and resets deviation correction mechanism, contains gas in hydraulic oil or pumped (conveying) medium
Reduce the phenomenon of sideslip in barrier film stress concentration or reciprocatory movement in the case of bubble or other impurities, significantly extend
The service life of barrier film.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model；
Fig. 2 is the exploded perspective view of the utility model pump head part；
Fig. 3 is the exploded perspective view that the utility model barrier film resets deviation correction mechanism；
Marked in figure：1st, motor, 2, speed changer, 201, sun gear, 202, pinch roller, 203, spring, 204, apical ring, 205, convex
Wheel, 206, planetary gear, 207, slipper bearing, 208, planet carrier, 209, speed adjustment screw, 210, handwheel, 211, speed governing block, 212, adjust
Fast handle, 3, pump head, 301, driving shaft, 302, the pump housing, 303, eccentric wheel, 304, the collar, 305, plunger mounting cylinder, 306, plunger,
307th, diaphragm plate, 308, valve plate, 309, pump cover, 310, barrier film, 311, inlet opening, 312, outage, 313, feed liquor check valve,
314th, discharge opeing check valve, 315, pumped (conveying) medium import, 316, pumped (conveying) medium outlet, 317, bearing pin, 318, guide, 319, Method for Installation
Orchid, the 320, first bolt, the 321, second bolt, the 322, the 3rd bolt, 323, O-ring seals, 324, access hole, 325, sealing
Bar, 326, cover plate, 4, barrier film reset deviation correction mechanism, 401, hollow guiding cylinder, 402, spring base, 403, back-moving spring, 404, card
Spring.
Embodiment
As shown in Figure 1 to Figure 3, a kind of Zero-leakage hydraulic diaphragm metering pump of the present utility model, including motor 1, speed changer 2
And pump head 3.
Speed changer 2 is Manual adjustable planetary stageless speed variator, and the output shaft of the input shaft and motor 1 of speed changer 2 is fixed
Connection, the end set of the input shaft of speed changer 2 has sun gear 201, pinch roller 202 and spring 203, along the casing inner circle of speed changer 2
It is provided with week and determines ring 204 and cam 205, the inner side of the planetary gear 206 of speed changer 2 is folded between sun gear 201 and pinch roller 202
And friction pair is formed, outside, which is folded in, determines between ring 204 and cam 205 and is formed friction pair, and the central shaft of planetary gear 206 passes through
Slipper bearing 207 is connected with the planet carrier 208 of speed changer 2, and planet carrier 208 is fixedly connected with the output shaft of speed changer 2, speed changer
2 also include a manual governing unit, and manual governing unit includes speed adjustment screw 209, is fixed on the hand of the end of speed adjustment screw 209
Wheel 210, coordinate the speed governing block 211 and speed regulating handle 212 being arranged on speed adjustment screw 209, one end of speed regulating handle 212 passes through bulb knot
Structure is arranged in speed governing block 211, and the other end is fixed by screw thread and cam 205.When adjusting rotating speed, rotation hand wheel 210, which drives, to be adjusted
The displacement of speed regulating handle 212 in fast block 211 and speed governing block 211, the cam 205 for making to be fixedly connected with speed regulating handle 212 produce axial shifting
It is dynamic, so as to uniformly change cam 205 and determine the interval between ring 204, make to move radially with the tapered generation of planetary gear 206,
It is last equably to change planetary gear 206 with sun gear 201 and pinch roller 202 and planetary gear 206 with determining ring 204 and cam 205
The radius of clean-up at place, realize stable variable speed.
Pump head 3 includes driving shaft 301 and the pump housing 302, and one end of driving shaft 301 is arranged on the outside of the pump housing 302 and and speed change
The output shaft drive connection of device 2.The other end of driving shaft 301 is arranged on the inside of the pump housing 302 and is provided with eccentric shaft 303, in bias
Axle 303 is provided with the rotatable collar 304.The plunger mounting cylinder 305 perpendicular to driving shaft 301, plunger are provided with the pump housing 302
Be provided with mounting cylinder 305 can the plunger 306 that slides of linear reciprocation, and one end that plunger 306 is located in the pump housing 302 passes through bearing pin
317 and the guide 318 that is arranged on the collar 304 be hinged with the collar 304, so as to by eccentric shaft 303 by driving shaft 301
Rotate the oscillating rectilinear motion for being changed into plunger 306.Access hole 324 is offered on the top of the pump housing 302 in the present embodiment, can be led to
The connection crossed between the maintenance plunger 306 of access hole 324 and the collar 304, convenient maintenance, it is provided with the position of access hole 324 detachable
Sealing strip 325 and cover plate 326.
The one end of plunger mounting cylinder 305 away from the pump housing 302 is fixed with diaphragm plate 307, valve plate 308 and pump cover 309 successively.
In the present embodiment, mounting flange 319 is provided with the one end of plunger mounting cylinder 305 away from the pump housing 302, in diaphragm plate 307, valve plate
308 and the outer rim of pump cover 309 offer bolt hole, and diaphragm plate 307, valve plate 308 and pump cover 309 pass through the first spiral shell
Bolt 320 is fixedly connected with mounting flange 319.Diaphragm plate 307 is individually fixed by the second bolt 321 with mounting flange 319, valve plate
308 are individually fixed by the 3rd bolt 322 with diaphragm plate 307.
Pump head 3 forms fluid chamber in plunger mounting cylinder 305 between plunger 306 and diaphragm plate 307, in diaphragm plate
Pumped (conveying) medium room is formed between 307 and valve plate 308, through hole is offered on diaphragm plate 307 and is located at pumped (conveying) medium room in the through hole
Side be provided with and be used to obstruct the barrier film 310 that fluid chamber connect with pumped (conveying) medium room, the plunger 306 in the present embodiment is hollow
Tubular, and be provided with barrier film in the intracavitary of plunger 306 and reset deviation correction mechanism 4, barrier film, which resets deviation correction mechanism 4, to be included being set in plunger 306
Interior hollow guiding cylinder 401, the spring base 402 being set in hollow guiding cylinder 401, the reset bullet being set on spring base 402
Spring 403 and plunger 306 is fastened on close to the port position of the one end of barrier film 310 and for preventing hollow guiding cylinder 401, spring base
402 and the jump ring 404 deviate from from plunger 306 of back-moving spring 403, spring base 402 pass through jump ring close to one end of barrier film 310
It is connected after through hole on 404 mesopore and diaphragm plate 307 by helicitic texture with the center of barrier film 310.In use,
Plunger 306 towards barrier film 310 move when, promote hydraulic oil barrier film 310 is produced the deformation away from the pump housing 302, now spring base
402 one end away from the pump housing 302 from the hollow middle stretching of snap ring and coordinate compression reseting spring 403 with jump ring 404, in plunger 306
When being moved away from barrier film 310, in the retraction plunger 306 of spring base 402, barrier film 310 is pulled to the pump housing 302 by the resilience of back-moving spring 403
Direction, complete the deformation of a stroke.In this course, spring base 402 and back-moving spring 403 are all the time in hollow guiding cylinder
Straight reciprocating motion in 401, reduce barrier film 310 in the case of bubble or other impurities are contained in hydraulic oil or pumped (conveying) medium
The phenomenon of sideslip in stress concentration or reciprocatory movement, significantly extend the service life of barrier film 310.
The inlet opening 311 and outage 312 connected with difference pumped (conveying) medium room, and inlet opening 311 are offered on valve plate 308
Aperture be more than outage 312 aperture.The feed liquor check valve 313 to pumped (conveying) medium room feed liquor is provided with inlet opening 311,
The discharge opeing check valve 314 from the discharge opeing of pumped (conveying) medium room is provided with outage 312, in the inlet opening 311 and outage of valve plate 308
312 are equipped with O-ring seals 323 close to the side of pump cover 309.Pump cover 309 is provided with the pumped (conveying) medium connected with inlet opening 311
Import 315 and the pumped (conveying) medium outlet 316 connected with outage 312.
Claims (8)
- A kind of 1. Zero-leakage hydraulic diaphragm metering pump, it is characterised in that：Including motor（1）, speed changer（2）And pump head（3）, institute State speed changer（2）For Manual adjustable planetary stageless speed variator, speed changer（2）Input shaft and motor（1）Output shaft fix Connection, speed changer（2）The end set of input shaft have sun gear（201）, pinch roller（202）And spring（203）, along speed changer （2）Casing inner periphery, which is provided with, determines ring（204）And cam（205）, speed changer（2）Planetary gear（206）Inner side be folded in too Sun wheel（201）With pinch roller（202）Between and form friction pair, outside, which is folded in, determines ring（204）With cam（205）Between and formed Friction pair, planetary gear（206）Central shaft pass through slipper bearing（207）With speed changer（2）Planet carrier（208）Connection, planet Frame（208）With speed changer（2）Output shaft be fixedly connected, the speed changer（2）Also include a manual governing unit, the hand Dynamic speed adjustment unit includes speed adjustment screw（209）, be fixed on speed adjustment screw（209）The handwheel of end（210）, coordinate be arranged on speed governing Screw rod（209）On speed governing block（211）And speed regulating handle（212）, the speed regulating handle（212）One end be arranged on by ball head structure Speed governing block（211）Interior, the other end passes through screw thread and cam（205）It is fixed；The pump head（3）Including driving shaft（301）And the pump housing （302）, the driving shaft（301）One end be arranged on the pump housing（302）It is outside and with the speed changer（2）Output shaft transmission connect Connect, driving shaft（301）The other end be arranged on the pump housing（302）Inside is simultaneously provided with eccentric shaft（303）, in eccentric shaft（303）On set There is the rotatable collar（304）, in the pump housing（302）It is provided with perpendicular to driving shaft（301）Plunger mounting cylinder（305）, Plunger mounting cylinder（305）It is interior be provided with can linear reciprocation slide plunger（306）, and plunger（306）Positioned at the pump housing（302）Interior one End and the collar（304）It is hinged, plunger mounting cylinder（305）Away from the pump housing（302）One end be fixed with diaphragm plate successively （307）, valve plate（308）And pump cover（309）, in plunger mounting cylinder（305）It is interior to be located at plunger（306）And diaphragm plate（307）It Between form fluid chamber, in diaphragm plate（307）And valve plate（308）Between form pumped (conveying) medium room, diaphragm plate（307）On offer Through hole is simultaneously located at the side of pumped (conveying) medium room provided with the barrier film connected for obstructing fluid chamber with pumped (conveying) medium room in the through hole （310）, the valve plate（308）On offer and pumped (conveying) medium room connects respectively inlet opening（311）And outage（312）, Inlet opening（311）The interior feed liquor check valve being provided with to pumped (conveying) medium room feed liquor（313）, in outage（312）It is interior to be provided with from conveying The discharge opeing check valve of dielectric chamber discharge opeing（314）, the pump cover（309）It is provided with and the inlet opening（311）The conveying of connection is situated between Matter import（315）And with the outage（312）The pumped (conveying) medium outlet of connection（316）.
- A kind of 2. Zero-leakage hydraulic diaphragm metering pump according to claim 1, it is characterised in that：The plunger（306）For Hollow tubular, and in plunger（306）Intracavitary is provided with barrier film and resets deviation correction mechanism（4）, the barrier film reset deviation correction mechanism（4）Including It is set in plunger（306）Interior hollow guiding cylinder（401）, be set in hollow guiding cylinder（401）Interior spring base（402）, be arranged In spring base（402）On back-moving spring（403）And it is fastened on plunger（306）Close to barrier film（310）The port position of one end And for preventing the hollow guiding cylinder（401）, spring base（402）And back-moving spring（403）From plunger（306）Middle abjection Jump ring（404）, the spring base（402）Close to barrier film（310）One end pass through the jump ring（404）Mesopore after pass through screw thread Structure and barrier film（310）Center connection.
- A kind of 3. Zero-leakage hydraulic diaphragm metering pump according to claim 1, it is characterised in that：The plunger（306）It is logical Cross bearing pin（317）And it is fixed on the collar（304）On guide（318）With the collar（304）It is hinged.
- A kind of 4. Zero-leakage hydraulic diaphragm metering pump according to claim 1, it is characterised in that：In the plunger mounting cylinder （305）Away from the pump housing（302）One end be provided with mounting flange（319）, in the diaphragm plate（307）, valve plate（308）And pump cover （309）Outer rim offer bolt hole, and diaphragm plate（307）, valve plate（308）And pump cover（309）Pass through the first bolt （320）With the mounting flange（319）It is fixedly connected.
- A kind of 5. Zero-leakage hydraulic diaphragm metering pump according to claim 4, it is characterised in that：The diaphragm plate（307） Pass through the second bolt（321）With the mounting flange（319）It is individually fixed, the valve plate（308）Pass through the 3rd bolt（322）With The diaphragm plate（307）It is individually fixed.
- A kind of 6. Zero-leakage hydraulic diaphragm metering pump according to claim 1, it is characterised in that：In the valve plate（308） Inlet opening（311）And outage（312）Close to pump cover（309）Side be equipped with O-ring seals（323）.
- A kind of 7. Zero-leakage hydraulic diaphragm metering pump according to claim 1, it is characterised in that：The inlet opening（311） Aperture be more than outage（312）Aperture.
- A kind of 8. Zero-leakage hydraulic diaphragm metering pump according to claim 1, it is characterised in that：The pump housing（302）On Offer access hole（324）, and in access hole（324）Position is provided with dismountable sealing strip（326）And cover plate（327）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720950817.4U CN206988076U (en) | 2017-08-01 | 2017-08-01 | A kind of Zero-leakage hydraulic diaphragm metering pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720950817.4U CN206988076U (en) | 2017-08-01 | 2017-08-01 | A kind of Zero-leakage hydraulic diaphragm metering pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206988076U true CN206988076U (en) | 2018-02-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720950817.4U Active CN206988076U (en) | 2017-08-01 | 2017-08-01 | A kind of Zero-leakage hydraulic diaphragm metering pump |
Country Status (1)
| Country | Link |
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| CN (1) | CN206988076U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110469732A (en) * | 2019-09-12 | 2019-11-19 | 德帕姆(杭州)泵业科技有限公司 | Speed tears type screw pushing rod type pump valve mounting structure open |
-
2017
- 2017-08-01 CN CN201720950817.4U patent/CN206988076U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110469732A (en) * | 2019-09-12 | 2019-11-19 | 德帕姆(杭州)泵业科技有限公司 | Speed tears type screw pushing rod type pump valve mounting structure open |
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