CN204085600U - A kind of Three-rotor flow meter - Google Patents

A kind of Three-rotor flow meter Download PDF

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Publication number
CN204085600U
CN204085600U CN201420518363.XU CN201420518363U CN204085600U CN 204085600 U CN204085600 U CN 204085600U CN 201420518363 U CN201420518363 U CN 201420518363U CN 204085600 U CN204085600 U CN 204085600U
Authority
CN
China
Prior art keywords
rotor
metering
canned
gear
fixed
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
CN201420518363.XU
Other languages
Chinese (zh)
Inventor
刘淞
李云泽
刘杰
彭丹丹
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.)
HEFEI JINGDA INSTRUMENT CO Ltd
Original Assignee
HEFEI JINGDA INSTRUMENT CO Ltd
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.)
Filing date
Publication date
Application filed by HEFEI JINGDA INSTRUMENT CO Ltd filed Critical HEFEI JINGDA INSTRUMENT CO Ltd
Priority to CN201420518363.XU priority Critical patent/CN204085600U/en
Application granted granted Critical
Publication of CN204085600U publication Critical patent/CN204085600U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The utility model discloses a kind of Three-rotor flow meter, rotor assembly includes two metering rotors and a canned rotor, described metering rotor includes metering rotating shaft and is fixed on the scraper plate in metering rotating shaft, described canned rotor includes sealing pivot, sealing pivot is fixed with two groups of splayed back up pads, arc seal pad is fixed with respectively in the end of two groups of back up pads, before two metering rotating shafts and the two ends of sealing pivot are arranged on respectively by rolling bearing, on back shroud, the rear end of metering rotating shaft and sealing pivot is separately installed with metering rotor gear and canned rotor gear, two metering rotor gears respectively with canned rotor gears meshing, the gear ratio of metering rotor gear and canned rotor gear is 1:2, the front end of sealing pivot is connected with speed regulator sum counter successively by shaft coupling.The advantages such as the utility model has novel structure, running is reliable, production cost is low, applied range.

Description

A kind of Three-rotor flow meter
Technical field
The utility model relates to volumetric flow field of instrumentation technology, particularly relates to a kind of Three-rotor flow meter.
Background technology
Volumeter is a kind of measuring instrument of the liquid volume for flowing through in measuring channel.Flowmeter is made up of flow transmitter, speed regulator, counter etc. usually.When fluid to be measured flows through measurement chamber, the pressure differential drive rotor between import and export rotates, and fluid is divided into continuous print equal volume amounts, the rotating speed of rotor is directly proportional to the liquid volume flowed through.The gear train assembly that rotates through of rotor passes to counter, indicates the total liquid volume by flowmeter.
Three-rotor flow meter is the one of volumeter, and three rotors are housed in its measurement chamber, is respectively two metering rotors and a canned rotor.Three rotors are by synchromesh gear synchronous axial system.
Utility model content
The utility model object is exactly the defect in order to make up prior art, provides a kind of Three-rotor flow meter.
The utility model is achieved through the following technical solutions:
A kind of Three-rotor flow meter, include housing, medium entrance and media outlet is had at the left and right sides of housing, protecgulum and bonnet is fixed with respectively in the front and back end of housing, in enclosure interior, rotor assembly is installed, described rotor assembly includes two metering rotors and a canned rotor, described metering rotor includes metering rotating shaft and is fixed on the scraper plate in metering rotating shaft, described canned rotor includes sealing pivot, sealing pivot is fixed with two groups of splayed back up pads, arc seal pad is fixed with respectively in the end of two groups of back up pads, before two metering rotating shafts and the two ends of sealing pivot are arranged on respectively by rolling bearing, on back shroud, the rear end of metering rotating shaft and sealing pivot is separately installed with metering rotor gear and canned rotor gear, two metering rotor gears respectively with canned rotor gears meshing, the gear ratio of metering rotor gear and canned rotor gear is 1:2, before described, back shroud is separately fixed at the front and back end of housing and lays respectively at the inner side of protecgulum and bonnet, the front end of sealing pivot is connected with speed regulator sum counter successively by shaft coupling.
When liquid stream is when the housing of flowmeter, the pressure differential between entrance and outlet promotes two metering rotors and rotates, and by gear driven canned rotor synchronous axial system.Because the gear ratio of metering rotor gear and canned rotor gear is 1:2, the rotating ratio of metering rotor and canned rotor is 2:1, and namely metering rotor often turns around, and canned rotor takes two turns.In rotation process, the outer face of scraper plate and seal pad external cylindrical surface form sealing relationship with three inner cylinder faces of housing respectively, seal pad external cylindrical surface also form sealing relationship with the external cylindrical surface of metering rotating shaft.Each position in rotation process, the entrance and exit of housing is all completely isolated.Metering rotor often turns around, and the liquid volume of discharging from outlet is a fixed amount.Therefore, the rotating speed of metering rotor is directly proportional to the liquid volume flowing through measurement chamber.The rotating speed of metering rotor is delivered to canned rotor by synchromesh gear, and outputs to counter through shaft coupling, speed regulator, directly demonstrates volumetric flow rate.
The utility model has the advantages that: the utility model is simple, regular owing to forming each element shapes of rotor, compared with monoblock type cast rotor, difficulty of processing significantly reduces, and this not only lowers production cost, and improve the machining precision of rotor, and then improve the measuring accuracy of flowmeter; On the other hand, this structure makes rotor weight significantly reduce, thus reduction rotary resistance, improve measuring accuracy, especially small flowmeter accuracy of measurement, alleviating of weight also makes the production cost of flowmeter lower, range of application is wider, according to different metered media, can replace rolling bearing with sliding bearing, the application of further expansion flowmeter, has novel structure, running is reliable, production cost is low, the advantage such as applied range.
Accompanying drawing explanation
Fig. 1 is side sectional view of the present utility model.
Fig. 2 is the positive direction view of the utility model enclosure interior.
Fig. 3 is the shape assumption diagram of the utility model metering rotor;
Fig. 4 is the shape assumption diagram of the utility model canned rotor.
Embodiment
As Fig. 1, 2, 3, shown in 4, a kind of Three-rotor flow meter, include housing 1, medium entrance 2 and media outlet 3 is had at the left and right sides of housing 1, protecgulum 4 and bonnet 5 is fixed with respectively in the front and back end of housing 1, in housing 1 inside, rotor assembly is installed, described rotor assembly includes two metering rotors 6 and a canned rotor 7, the scraper plate 9 that described metering rotor 6 includes metering rotating shaft 8 and is fixed in metering rotating shaft 8, described canned rotor 7 includes sealing pivot 10, sealing pivot 10 is fixed with two groups of splayed back up pads 11, arc seal pad 12 is fixed with respectively in the end of two groups of back up pads 11, before two metering rotating shafts 8 and the two ends of sealing pivot 10 are arranged on respectively by rolling bearing 13, on back shroud 14, the rear end of metering rotating shaft 8 and sealing pivot 10 is separately installed with metering rotor gear 15 and canned rotor gear 16, two metering rotor gears 15 engage with canned rotor gear 16 respectively, the gear ratio of metering rotor gear 15 and canned rotor gear 16 is 1:2, before described, back shroud 14 is separately fixed at the front and back end of housing 1 and lays respectively at the inner side of protecgulum 4 and bonnet 5, the front end of sealing pivot 10 is connected with speed regulator 18 sum counter 19 successively by shaft coupling 17.

Claims (1)

1. a Three-rotor flow meter, it is characterized in that: include housing, medium entrance and media outlet is had at the left and right sides of housing, protecgulum and bonnet is fixed with respectively in the front and back end of housing, in enclosure interior, rotor assembly is installed, described rotor assembly includes two metering rotors and a canned rotor, described metering rotor includes metering rotating shaft and is fixed on the scraper plate in metering rotating shaft, described canned rotor includes sealing pivot, sealing pivot is fixed with two groups of splayed back up pads, arc seal pad is fixed with respectively in the end of two groups of back up pads, before two metering rotating shafts and the two ends of sealing pivot are arranged on respectively by rolling bearing, on back shroud, the rear end of metering rotating shaft and sealing pivot is separately installed with metering rotor gear and canned rotor gear, two metering rotor gears respectively with canned rotor gears meshing, the gear ratio of metering rotor gear and canned rotor gear is 1:2, before described, back shroud is separately fixed at the front and back end of housing and lays respectively at the inner side of protecgulum and bonnet, the front end of sealing pivot is connected with speed regulator sum counter successively by shaft coupling.
CN201420518363.XU 2014-09-10 2014-09-10 A kind of Three-rotor flow meter Expired - Fee Related CN204085600U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201420518363.XU CN204085600U (en) 2014-09-10 2014-09-10 A kind of Three-rotor flow meter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201420518363.XU CN204085600U (en) 2014-09-10 2014-09-10 A kind of Three-rotor flow meter

Publications (1)

Publication Number Publication Date
CN204085600U true CN204085600U (en) 2015-01-07

Family

ID=52178303

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201420518363.XU Expired - Fee Related CN204085600U (en) 2014-09-10 2014-09-10 A kind of Three-rotor flow meter

Country Status (1)

Country Link
CN (1) CN204085600U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104897223A (en) * 2015-06-12 2015-09-09 河海大学 Rotating vane type irrigating water metering and control integrating device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104897223A (en) * 2015-06-12 2015-09-09 河海大学 Rotating vane type irrigating water metering and control integrating device

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Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20150107

Termination date: 20210910