CN2338505Y - Mechanical diaphragm type metering pump - Google Patents

Mechanical diaphragm type metering pump Download PDF

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Publication number
CN2338505Y
CN2338505Y CN 98215295 CN98215295U CN2338505Y CN 2338505 Y CN2338505 Y CN 2338505Y CN 98215295 CN98215295 CN 98215295 CN 98215295 U CN98215295 U CN 98215295U CN 2338505 Y CN2338505 Y CN 2338505Y
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CN
China
Prior art keywords
diaphragm
utility
stroke
model
regulation
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 - Fee Related
Application number
CN 98215295
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Chinese (zh)
Inventor
陈琳娟
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
JIANGNAN ELECTRIC POWER EQUIPMENT PLANT CHANGZHOU CITY
Original Assignee
JIANGNAN ELECTRIC POWER EQUIPMENT PLANT CHANGZHOU CITY
Priority date (The priority date 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 date listed.)
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Publication date
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Application filed by JIANGNAN ELECTRIC POWER EQUIPMENT PLANT CHANGZHOU CITY filed Critical JIANGNAN ELECTRIC POWER EQUIPMENT PLANT CHANGZHOU CITY
Priority to CN 98215295 priority Critical patent/CN2338505Y/en
Application granted granted Critical
Publication of CN2338505Y publication Critical patent/CN2338505Y/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

The utility model relates to a mechanical diaphragm type metering pump. The utility model mainly comprises a driving part, a diaphragm sheet and a hydraulic part. The driving part is composed of an electric motor, a worm wheel, a worm rod, a sliding crank and a connecting rod. The diaphragm sheet is fixed by a diaphragm baffle block and a diaphragm plate. The hydraulic part is composed of a pump head, a water inlet, a water outlet and a check valve. The utility model is characterized in that a regulation and metering mechanism is composed of a sliding crank, a sliding key, an eccentric wheel, a stroke regulation screw rod, a stroke scale and a stroke locking turn knob; the regulation and metering mechanism is arranged on the worm gear; an inner cavity is composed of the regulation and metering mechanism, a box body and a diaphragm support seat; the inner cavity is communicated with the outside through a connecting pipe. The utility model has the advantages of simple structure, small volume, convenient and correct regulation and metering, and working conditions of the diaphragm and oil sealing display at any time. The utility model is widely used for metering and transporting various fluid mediums.

Description

Mechanical diaphragm formula metering pump
The utility model belongs to the adjustable reciprocating type diaphragm metering pump of a kind of flow.
The at present domestic metering pump that generally uses mostly is plunger pump or plunger type diaphragm pump, and its structure comprises mechanical driving part, Flow-rate adjustment part, fluid power part.The structure of mechanical motion part adopts worm gear, worm gear box, connecting rod to promote plunger and does back and forth action, and by N type bent axle length of stroke controlling mechanism pilot plunger stroke, and its complex structure, manufacturing process difficulty are big.Because plunger adopts packing seal, poor reliability, thereby this pump easily leaks.Plunger type diaphragm pump flow in the known technology is decided by barrier film reciprocating frequence (being pump speed) and plunger diameter, thereby under the certain situation of barrier film frequency, need obtain big flow with regard to the necessary plunger diameter that strengthens, thereby increased the volume of pump inevitably, so high-capacity pump in the market is large volume, big weight pump, bring difficulty for transportation and installation, and manufacture cost is big.
The purpose of this utility model is to overcome the defective of prior art, provides that a kind of compact structure is reasonable, technology is simple, volume is light and handy, does not have and leak, be transferred medium and the isolated diaphragm metering pump of mechanical driving part.
The utility model mainly comprises the drive part of being made up of worm gear, worm gear box, crank, linkage mechanism; Flow-rate adjustment part by stroke adjustment screw rod, slip crank, feather key, eccentric wheel, stroke scale, stroke locking set of knobs one-tenth; Import and export the fluid power part that safety check is formed by barrier film baffle plate and the securing diaphragm of diaphragm plate, pump head.
Give worm gear by the motor outputting power through worm drive, worm gear is by the slip crank and be loaded on eccentric wheel on the slip crank and connecting rod will rotatablely move and become to-and-fro motion, and pass to barrier film and diaphragm plate by the barrier film block that links to each other with connecting rod, make the barrier film to-and-fro motion, thereby pump head chamber internal volume is changed, liquid is sucked and discharge by importing and exporting safety check, reach the purpose of carrying liquid.Flow of the present utility model depends primarily on the size of pump speed and diaphragm plate diameter, obtains the major diameter of diaphragm plate under the certain situation of pump speed easily, thereby obtains big flow easily and do not increase the volume of casing.The inner chamber that casing and barrier film bearing are formed is communicated by the adapter and the external world, can transmit diaphragm and take out the information whether envelope breaks, and guarantees the normal operation of pump.Stroke adjustment screw rod, slip crank, feather key, eccentric wheel, stroke scale and stroke hook knob are the concrete adjustings of implementing flow.
The utility model compared with prior art has the following advantages: 1. simple and compact structure, volume is little, and is in light weight, volume only be at present domestic high-capacity pump of the same type 1/3.2. Flow-rate adjustment part face easy to adjust, directly perceived is accurate.The slip crank is compared with traditional N type bent axle, and technology is simple, obtains required precision easily, guarantees that the accent amount is accurate.3. the inner chamber of casing and barrier film bearing composition has adapter to communicate with the external world, shows oil sealing and diaphragm working condition at any time, the normal operation of protection pump.
Description of drawings
Fig. 1 is a main sectional view of the present utility model.
Fig. 2 is a plan view.
The utility model is described in further detail below in conjunction with embodiment and accompanying drawing.
This pump drive reducing gear is with three phase electric machine (3) outputting power, motor shaft is by key and spring (5) and worm screw (4) direct connection, worm screw (4) and worm gear (15) engagement driving, worm gear (15) is bearing in the lining (13), slip crank (14) is arranged in the worm gear (15), slip crank (14) links to each other with eccentric wheel (17) by feather key (16), connecting rod (11) is housed on the eccentric wheel (17), connecting rod (11) passes through screw (26) with barrier film block (6) and diaphragm plate (25), diaphragm (7) fuses, diaphragm (7) outer ring by barrier film bearing (8) and pump head (24) by being bolted on the casing (12), oil sealing (23) is fixed on casing (12) and the connecting rod (11) by clamping sleeve (9) and oil sealing cover (10), and oil in the casing (12) is separated with fluid end.The inner chamber that casing (12) and barrier film bearing (8) are formed communicates by taking over (22) and the external world.Accent amount part is made up of stroke adjustment screw rod (20), stroke adjustment knob (21), stroke scale (19), and by stroke hook knob (18) stroke adjustment screw rod (20) is made axial restraint, prevents play and influences flow setting precision.
The working procedure of this pump is as follows: motor (3) rotation is slowed down by worm gear (15), worm screw (4), drive slip crank (14) rotation, and will rotatablely move and be transformed into to-and-fro motion by eccentric wheel (17), connecting rod (11), connecting rod (11) produces back and forth diaphragm (7) by barrier film block (6) and the diaphragm plate (25) that fixes with it, thereby pump head (24) chamber internal volume is changed, by importing and exporting the purpose that safety check (1,2) reaches suction, discharge opeing body.Flow control device is the relative position that changes slip crank (14) and feather key (16) by stroke adjustment screw rod (20), thereby changes the eccentric size of eccentric wheel (17), to change the purpose that diaphragm plate (25) length of stroke reaches the change flow.Take over (22) inner chamber of casing (12) and barrier film bearing (8) composition is communicated with the external world, take over (22) mouth, know that then its diaphragm (7) or oil sealing (23) break if any being gone out by defeated medium or oil leakage.

Claims (3)

1. mechanical diaphragm formula metering pump, mainly comprise the drive part formed by motor (3) worm gear (15) worm screw (4) slip crank (14) connecting rod (11) and import and export the fluid power part that safety check (12) are formed, it is characterized in that the accent measuring mechanism of slip crank (14) feather key (16) eccentric wheel (17) stroke adjustment screw rod (20) stroke scale (19) stroke hook knob (18) composition in the worm gear (15) by barrier film block (6) and fixing diaphragm (7), the pump head (24) of diaphragm plate (25)
2. diaphragm metering pump as claimed in claim 1 is characterized in that connecting rod (11) fuses barrier film block (6) and diaphragm plate (25) diaphragm (7) by screw (26), diaphragm (7) outer ring by barrier film bearing (8) and pump head (24) by being bolted on the casing (12), oil sealing (23) is fixed on casing (12) and the connecting rod (11) by clamping sleeve (9) and oil sealing cover (10), and oil in the casing (12) is separated with fluid end.
3. diaphragm metering pump as claimed in claim 1 is characterized in that the inner chamber that casing (12) and diaphragm support seat (8) are formed communicates with the external world by taking over (22).
CN 98215295 1998-06-10 1998-06-10 Mechanical diaphragm type metering pump Expired - Fee Related CN2338505Y (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 98215295 CN2338505Y (en) 1998-06-10 1998-06-10 Mechanical diaphragm type metering pump

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 98215295 CN2338505Y (en) 1998-06-10 1998-06-10 Mechanical diaphragm type metering pump

Publications (1)

Publication Number Publication Date
CN2338505Y true CN2338505Y (en) 1999-09-15

Family

ID=33968653

Family Applications (1)

Application Number Title Priority Date Filing Date
CN 98215295 Expired - Fee Related CN2338505Y (en) 1998-06-10 1998-06-10 Mechanical diaphragm type metering pump

Country Status (1)

Country Link
CN (1) CN2338505Y (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101900096A (en) * 2010-08-11 2010-12-01 上海悦澜泵业制造有限公司 Mechanical diaphragm metering pump with adjustable stroke
CN102261329A (en) * 2010-05-26 2011-11-30 上海工程技术大学 Stroke regulation mechanism for metering pump
CN103362769A (en) * 2012-03-26 2013-10-23 德帕姆(杭州)泵业科技有限公司 Metering pump with entire solid eccentric wheel travel adjustment mechanism
CN105422406A (en) * 2015-12-29 2016-03-23 米顿罗工业设备(上海)有限公司 Automatic locking structure of adjusting screw rod for flow-adjustable metering pump
CN105697259A (en) * 2016-04-26 2016-06-22 德帕姆(杭州)泵业科技有限公司 Metering pump with movable shaft with chutes

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102261329A (en) * 2010-05-26 2011-11-30 上海工程技术大学 Stroke regulation mechanism for metering pump
CN102261329B (en) * 2010-05-26 2014-04-02 上海工程技术大学 Stroke regulation mechanism for metering pump
CN101900096A (en) * 2010-08-11 2010-12-01 上海悦澜泵业制造有限公司 Mechanical diaphragm metering pump with adjustable stroke
CN103362769A (en) * 2012-03-26 2013-10-23 德帕姆(杭州)泵业科技有限公司 Metering pump with entire solid eccentric wheel travel adjustment mechanism
CN103362769B (en) * 2012-03-26 2017-01-04 德帕姆(杭州)泵业科技有限公司 A kind of dosing pump of overall throw of eccentric governor motion
CN105422406A (en) * 2015-12-29 2016-03-23 米顿罗工业设备(上海)有限公司 Automatic locking structure of adjusting screw rod for flow-adjustable metering pump
CN105422406B (en) * 2015-12-29 2018-06-26 米顿罗工业设备(上海)有限公司 The automatic locking structure of adjustable flow metering pump adjusting screw rod
CN105697259A (en) * 2016-04-26 2016-06-22 德帕姆(杭州)泵业科技有限公司 Metering pump with movable shaft with chutes
CN105697259B (en) * 2016-04-26 2019-03-05 德帕姆(杭州)泵业科技有限公司 Skewed slot shifting axle metering pump

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GR01 Patent grant
C19 Lapse of patent right due to non-payment of the annual fee
CF01 Termination of patent right due to non-payment of annual fee