CN204085600U - A kind of Three-rotor flow meter - Google Patents
A kind of Three-rotor flow meter Download PDFInfo
- 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
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- China
- Prior art keywords
- rotor
- metering
- canned
- gear
- fixed
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- Expired - Fee Related
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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
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.
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 (2)
| 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 |
| CN112325951A (en) * | 2020-10-21 | 2021-02-05 | 南京深度系统工程有限公司 | Three-rotor non-pulsation type volumetric flowmeter |
-
2014
- 2014-09-10 CN CN201420518363.XU patent/CN204085600U/en not_active Expired - Fee Related
Cited By (3)
| 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 |
| CN112325951A (en) * | 2020-10-21 | 2021-02-05 | 南京深度系统工程有限公司 | Three-rotor non-pulsation type volumetric flowmeter |
| CN112325951B (en) * | 2020-10-21 | 2023-09-01 | 南京深度系统工程有限公司 | Three-rotor pulsation-free positive displacement flowmeter |
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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 |