CN206988075U

CN206988075U - A kind of horizontal measuring pump of zero leakage pulse free

Info

Publication number: CN206988075U
Application number: CN201720950214.4U
Authority: CN
Inventors: 李亚斌
Original assignee: Shaanxi Renhe Branch Trade LLC
Current assignee: Shaanxi Renhe Branch Trade LLC
Priority date: 2017-08-01
Filing date: 2017-08-01
Publication date: 2018-02-09
Anticipated expiration: 2027-08-01

Abstract

Measuring pump field is the utility model is related to, specifically a kind of horizontal measuring pump of zero leakage pulse free.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, and one end that driving shaft is located in the pump housing is provided with three sections of eccentric shafts, and the pump housing is provided with three plunger mounting cylinders, and the plunger that by eccentric shaft linear reciprocation can be driven to slide is respectively equipped with three plunger mounting cylinders；The one end of butt joint box away from the pump housing is fixed with diaphragm plate, valve plate and pump cover successively, diaphragm plate is provided with barrier film, feed liquor check valve and discharge opeing check valve are offered on valve plate, pump cover is provided with the pumped (conveying) medium import connected with three inlet openings and exported with the pumped (conveying) medium that three outages connect.The utility model not only facilitates Flow-rate adjustment, and pulses and substantially reduce in the case where same traffic inputs.

Description

A kind of horizontal measuring pump of zero leakage pulse free

Technical field

Measuring pump field is the utility model is related to, specifically a kind of horizontal measuring pump of zero leakage pulse free.

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.

The Flow-rate adjustment of measuring pump of the prior art passes through regulation motor rotating speed or the realization of 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 to measuring pump The required precision of part itself is higher, and deviation easily occurs.The suction of liquid medium and row in measuring pump of the prior art It is that alternately, and plunger is in displacement process to go out process, and its speed is again among constantly changing.So measuring pump Instantaneous delivery not only time to time change, and be discontinuous one one pulses output.The pulses export not Only inner-walls of duct is impacted, causes pipe vibration, influences to measure effect, more likely inner-walls of duct is caused to corrode, made High-risk medium leakage, forms potential safety hazard.

Utility model content

The utility model aim to provide it is a kind of facilitate Flow-rate adjustment, and pulse in the case where same traffic inputs and drop significantly The horizontal measuring pump of low zero leakage pulse free.

In order to solve the above technical problems, the technical solution adopted in the utility model is：A kind of zero leakage pulse free crouches Formula measuring pump, including motor, speed changer and pump head, the speed changer are Manual adjustable planetary stageless speed variator, speed changer Input shaft be connected with the output shaft of motor, the end set of transmission input shaft has sun gear, pinch roller and spring, along speed changer 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 and is rubbed Pair is wiped, outside, which is folded in, determines between ring and cam and formed friction pair, and the central shaft of planetary gear passes through slipper bearing and speed changer Planet carrier connection, planet carrier is fixedly connected with the output shaft of speed changer, and the speed changer also includes a manual governing unit, The manual governing unit includes 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 are arranged in speed governing block by ball head structure, the other end by screw thread with it is convex Wheel 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 changer Output shaft be connected, the other end of driving shaft is arranged on pump body and is provided with three sections of eccentric shafts, three sections of bias vertically Between centers is equipped with the rotatable collar every being staggered on any one section of eccentric shaft, parallel on the pump housing to be provided with three It is used to accommodate three perpendicular to driving shaft and with the one-to-one plunger mounting cylinder of three sections of eccentric shafts on driving shaft and one The butt joint box of plunger mounting cylinder, be respectively equipped with three plunger mounting cylinders can the plunger that slides of linear reciprocation, and plunger is located at pump Internal one end is hinged with the corresponding collar respectively；The one end of the butt joint box away from the pump housing is fixed with diaphragm plate, valve successively Plate and pump cover, fluid chamber is respectively formed between plunger and diaphragm plate in any one plunger mounting cylinder, in diaphragm plate On offer three through holes one-to-one with three fluid chambers and be equipped with barrier film close to the side of valve plate in three through holes, Three form the pumped (conveying) medium rooms of three between barrier film and valve plate, three groups and three pumped (conveying) medium rooms one are offered on the valve plate Pumped (conveying) medium passage group corresponding to one, any one pumped (conveying) medium passage group include an inlet opening and an outage, The feed liquor check valve to pumped (conveying) medium room feed liquor is provided with inlet opening, the discharge opeing from the discharge opeing of pumped (conveying) medium room is provided with outage Check valve, the pump cover are provided with the pumped (conveying) medium import that is connected with three inlet openings and connected with three outages Pumped (conveying) medium exports.

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 and back-moving spring are deviate from from plunger, the spring base pass through the mesopore of the jump ring close to one end of barrier film Connected afterwards by helicitic texture with the center of corresponding barrier film.

Preferably, the plunger is hinged by bearing pin and the guide being fixed on the collar with the collar.

Preferably, the butt joint box, diaphragm plate, valve plate and pump cover are rectangle, in butt joint box away from diaphragm plate one end End face be provided with multiple screwed holes, the diaphragm plate, valve plate and pump cover are bolted on butt joint box by first.

Preferably, the diaphragm plate is fixed by the second bolt with butt joint box, and the valve plate passes through the 3rd bolt and barrier film Plate is fixed.

Preferably, it is located at three inlet openings and the circulation passage of pumped (conveying) medium import towards the side of pump cover in the valve plate And it is provided with sealing strip between three outages and the circulation passage of pumped (conveying) medium outlet.

Preferably, the pump cover is provided with multiple pumped (conveying) medium imports and multiple pumped (conveying) mediums export.

Beneficial effect

A kind of three plunger autoclave diaphragm measuring pumps of flow of regulation manually of the present utility model by motor and pump head it Between planetary buncher is set, by handwheel adjust transmission output shaft rotating speed realize to measure pump discharge regulation, It is simple in construction, it is easy to accomplish, the Flow-rate adjustment of measuring pump is carried out on pump body, and the speed changer intensity is high, noise Small, slewing range is big, and adjusting speed accuracy is high, and combination ability is strong, in the case where allowing load, the invariablenes turning speed of setting, and full secret Envelope, is applicable to moist, more dirt, has the working environment of mild corrosion.

A kind of three plunger autoclave diaphragm measuring pumps of flow of regulation manually of the present utility model set three plungers, liquid outlet Collecting three fluid holes alternately to discharge pumped (conveying) medium successively, the ripple amplitude of instantaneous delivery is less and less, or even in practical Stationary flow is may be considered, output medium is gentle, reduces impact of the medium to pipeline, extends service life, while also carry High metering effect.

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 configuration schematic diagram of pump head part of the present utility model；

Fig. 3 is the configuration schematic diagram that barrier film of the present utility model 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 shaft, 304, the collar, 305, plunger mounting cylinder, 306, docking Case, 307, plunger, 308, diaphragm plate, 309, valve plate, 310, pump cover, 311, barrier film, 312, inlet opening, 313, outage, 314, Feed liquor check valve, 315, discharge opeing check valve, 316, pumped (conveying) medium import, 317, pumped (conveying) medium outlet, 318, bearing pin, 319, pin Set, the 320, first bolt, the 321, second bolt, the 322, the 3rd bolt, 323, sealing strip, 4, barrier film reset deviation correction mechanism, 401, Hollow guiding cylinder, 402, spring base, 403, back-moving spring, 404, jump ring.

Embodiment

As shown in Figure 1 to Figure 3, a kind of horizontal measuring pump of zero leakage pulse free of the present utility model includes motor 1, speed change Device 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.One end of driving shaft 301 is arranged on the outside of the pump housing 302 and and speed change The output shaft of device 2 is connected, and the other end of driving shaft 301 is arranged on the inside of the pump housing 302 and is provided with three sections of eccentric shafts 303 vertically, Three sections of interleaveds of eccentric shaft 303 are set, and the rotatable collar 304 is equipped with any one section of eccentric shaft 303.The pump housing On 302 it is parallel be provided with three perpendicular to driving shaft 301 and with three sections of eccentric shafts, the 303 one-to-one plunger on driving shaft 301 Mounting cylinder 305 and a butt joint box 306 for being used to accommodate three plunger mounting cylinders 305.In three plunger mounting cylinders 305 respectively Provided with can the plunger 307 that slides of linear reciprocation, and plunger 307 be located at one end in the pump housing 302 and led to respectively with the corresponding collar 304 The guide 319 crossed bearing pin 318 and be fixed on the collar 304 is hinged.Three sections of interlocking for eccentric shaft 303 set on driving shaft 301 Put, can three plungers 307 of push-and-pull produce the straight reciprocating motion of alternating expression so that output medium is gentle, reduce medium pair The impact of pipeline, service life is extended, while also improve metering effect.

The one end of butt joint box 306 away from the pump housing 302 is fixed with diaphragm plate 308, valve plate 309 and pump cover 310 successively.This reality Apply in example, butt joint box 306, diaphragm plate 308, valve plate 309 and pump cover 310 are rectangle, in butt joint box 306 away from diaphragm plate one The end face at end is provided with multiple screwed holes, and diaphragm plate 308, valve plate 309 and pump cover 310 are fixed on by the first bolt 320 On butt joint box 306.Diaphragm plate 308 is fixed by the second bolt 321 with butt joint box 306, valve plate 309 by the 3rd bolt 322 with Diaphragm plate 308 is fixed.In any one plunger mounting cylinder 305 hydraulic oil is respectively formed between plunger 307 and diaphragm plate 308 Room, three through holes one-to-one with three fluid chambers are offered on diaphragm plate 308 and in three through holes close to valve plate 309 Side be equipped with barrier film 311, the pumped (conveying) medium room of three is formed between three barrier films 311 and valve plate 309, is opened on valve plate 309 Provided with three groups and the one-to-one pumped (conveying) medium passage group in three pumped (conveying) medium rooms, any one pumped (conveying) medium passage group includes One inlet opening 312 and an outage 313, the feed liquor check valve to pumped (conveying) medium room feed liquor is provided with inlet opening 312 314, the discharge opeing check valve 315 from the discharge opeing of pumped (conveying) medium room is provided with outage 313.In the present embodiment, plunger 307 is hollow Tubular, and be provided with barrier film in the intracavitary of plunger 307 and reset deviation correction mechanism 4, barrier film, which resets deviation correction mechanism 4, to be included being set in plunger 307 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 307 is fastened on close to the port position of the one end of barrier film 311 and for preventing hollow guiding cylinder 401, spring base 402 and the jump ring 404 deviate from from plunger 307 of back-moving spring 403, spring base 402 pass through jump ring close to one end of barrier film 311 Connected after 404 mesopore by helicitic texture with the center of corresponding barrier film 311.In use, plunger 307 is towards barrier film During 311 motion, hydraulic oil is promoted barrier film 311 is produced the deformation away from the pump housing 302, now spring base 402 is away from the pump housing 302 One end from the hollow middle stretching of snap ring and coordinates compression reseting spring 403 with jump ring 404, is moved in plunger 307 away from barrier film 311 When, in the retraction plunger 307 of spring base 402, barrier film 311 is pulled to the direction of the pump housing 302 by the resilience of back-moving spring 403, completes a row The deformation of journey.In this course, linear reciprocation is transported in hollow guiding cylinder 401 all the time for spring base 402 and back-moving spring 403 It is dynamic, the stress of barrier film 311 concentration or reciprocal is reduced in the case of bubble or other impurities are contained in hydraulic oil or pumped (conveying) medium The phenomenon of sideslip in motion process, significantly extend the service life of barrier film 311.

Pump cover 310 be provided with multiple pumped (conveying) medium imports 316 for being connected with three inlet openings 312 and with three discharge opeings Multiple pumped (conveying) mediums outlet 317 that hole 313 connects.It is located at three towards the side of pump cover 310 in valve plate 309 in the present embodiment Inlet opening 312 and the circulation passage of pumped (conveying) medium import 316 and three outages 313 and the circulation of pumped (conveying) medium outlet 317 Sealing strip 323 is provided between passage, makes two non-interference remittances that feed liquor and discharge opeing are formed between valve plate 309 and pump cover 310 Collect chamber.In preferred embodiment, pumped (conveying) medium import 316 and pumped (conveying) medium outlet 317 are respectively provided with two, and a master one is standby respectively, It is easy to select to use when extension tube attached position is bad.

Claims

A kind of 1. horizontal measuring pump of zero leakage pulse free, it is characterised in that：Including motor（1）, speed changer（2）And pump head （3）, the speed changer（2）For Manual adjustable planetary stageless speed variator, speed changer（2）Input shaft and motor（1）Output Axle is connected, speed changer（2）The end set of input shaft has 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 be connected, Driving shaft（301）The other end be arranged on the pump housing（302）Inside is simultaneously provided with three sections of eccentric shafts vertically（303）, described three sections partially Mandrel（303）Interleaved is set, and in any one section of eccentric shaft（303）On be equipped with the rotatable collar（304）, the pump Body（302）It is above parallel to be provided with three perpendicular to driving shaft（301）And and driving shaft（301）On three sections of eccentric shafts（303）One by one Corresponding plunger mounting cylinder（305）And one be used for accommodate three plunger mounting cylinders（305）Butt joint box（306）, three posts Fill in mounting cylinder（305）Inside be respectively equipped with can linear reciprocation slide plunger（307）, and plunger（307）Positioned at the pump housing（302）Interior One end respectively with the corresponding collar（304）It is hinged；The butt joint box（306）Away from the pump housing（302）One end be fixed with successively Diaphragm plate（308）, valve plate（309）And pump cover（310）, in any one plunger mounting cylinder（305）It is interior to be located at plunger（307）With Diaphragm plate（308）Between be respectively formed fluid chamber, in diaphragm plate（308）On offer and three fluid chambers one-to-one three Individual through hole and in three through holes close to valve plate（309）Side be equipped with barrier film（311）, three barrier films（311）And valve plate（309） Between form the pumped (conveying) medium room of three, the valve plate（309）On offer three groups it is one-to-one with three pumped (conveying) medium rooms Pumped (conveying) medium passage group, any one pumped (conveying) medium passage group include an inlet opening（312）With an outage（313）, In inlet opening（312）The interior feed liquor check valve being provided with to pumped (conveying) medium room feed liquor（314）, in outage（313）It is interior to be provided with from defeated Send the discharge opeing check valve of dielectric chamber discharge opeing（315）, the pump cover（310）It is provided with and three inlet openings（312）What is connected is defeated Send medium entrance（316）And with three outages（313）The pumped (conveying) medium outlet connected（317）.
A kind of 2. horizontal measuring pump of zero leakage pulse free according to claim 1, it is characterised in that：The plunger （307）For hollow tubular, and in plunger（307）Intracavitary is provided with barrier film and resets deviation correction mechanism（4）, the barrier film reset deviation correction mechanism （4）Including being set in plunger（307）Interior hollow guiding cylinder（401）, be set in hollow guiding cylinder（401）Interior spring base （402）, be set in spring base（402）On back-moving spring（403）And it is fastened on plunger（307）Close to barrier film（311）One end Port position and for preventing the hollow guiding cylinder（401）, spring base（402）And back-moving spring（403）From plunger （307）The jump ring of middle abjection（404）, the spring base（402）Close to barrier film（311）One end pass through the jump ring（404）'s Pass through helicitic texture and corresponding barrier film after mesopore（311）Center connection.
A kind of 3. horizontal measuring pump of zero leakage pulse free according to claim 1, it is characterised in that：The plunger （307）Pass through bearing pin（318）And it is fixed on the collar（304）On guide（319）With the collar（304）It is hinged.
A kind of 4. horizontal measuring pump of zero leakage pulse free according to claim 1, it is characterised in that：The butt joint box （306）, diaphragm plate（308）, valve plate（309）And pump cover（310）It is rectangle, in butt joint box（306）Away from the pump housing（302）One The end face at end is provided with multiple screwed holes, the diaphragm plate（308）, valve plate（309）And pump cover（310）Pass through the first bolt （320）It is fixed on butt joint box（306）On.
A kind of 5. horizontal measuring pump of zero leakage pulse free according to claim 4, it is characterised in that：The diaphragm plate （308）Pass through the second bolt（321）With butt joint box（306）It is fixed, the valve plate（309）Pass through the 3rd bolt（322）With barrier film Plate（308）It is fixed.
A kind of 6. horizontal measuring pump of zero leakage pulse free according to claim 1, it is characterised in that：In the valve plate （309）Towards pump cover（310）Side be located at three inlet openings（312）With pumped (conveying) medium import（316）Circulation passage and Three outages（313）Exported with pumped (conveying) medium（317）Circulation passage between be provided with sealing strip（323）.
A kind of 7. horizontal measuring pump of zero leakage pulse free according to claim 1, it is characterised in that：The pump cover （310）It is provided with multiple pumped (conveying) medium imports（316）And multiple pumped (conveying) medium outlets（317）.