CN2886510Y - Three-tooth dual-rotor gas flowmeter - Google Patents
Three-tooth dual-rotor gas flowmeter Download PDFInfo
- Publication number
- CN2886510Y CN2886510Y CN 200620040422 CN200620040422U CN2886510Y CN 2886510 Y CN2886510 Y CN 2886510Y CN 200620040422 CN200620040422 CN 200620040422 CN 200620040422 U CN200620040422 U CN 200620040422U CN 2886510 Y CN2886510 Y CN 2886510Y
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- rotor
- gear
- tooth
- magnet steel
- dual
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Abstract
The utility model relates to a triple gear gas dual rotameter for measuring gas flow of natural gas, coal gas and the like, having the structure that magnet steel for message transmission 3, a sensing unit 2, and an electron counter are connected on the back of a measuring cavity 5, and a rotor is arranged in the measuring cavity 5. The rotor is characterized in that the rotor which has the shape of arc cycloid is triple gear spiral rotor 4, wherein the gear form comprises the combination of four curved lines, and is respectively connected with a prolate cycloid, a curtate cyloid, an involute and an arc line from the peak of the gear. The measuring cavity 5 is connected with the dual rotor through an axle bearing 6, the rotor is connected with the rotor shaft, and the leading end of the dual rotor shaft is respectively fixedly connected with a driving gear 7 with the two driving gears engaging. The magnet steel for message transmission 3 is fixedly connected with the rear end of the rotor. The triple gear spiral rotor which is stable has high measuring accuracy, nice hermeticity in engagement, no fluctuation and uniform operating speed. The transverse pitch has no friction, thereby equipping with the driving gear, producing no friction between rotors in rotating engagement, and providing low noise and long durability.
Description
Technical field
The utility model belongs to the duplex rotor meter instrument that the measurements of gas flow such as a kind of rock gas, coal gas are used, particularly to the improvement of gas duplex rotor meter structure.
Background technology
Existing positive displacement gas meter is a waist wheel gas meter, and its rotor that adopts is a waist wheel shape, and this waist wheel rotor is a bidentate.Because bidentate waist wheel rotor formed curve when work is a cycloidal tooth profile, causing flowmeter is not continuous measurement when metering, has pulsation to produce, and measuring accuracy is inaccurate; And its serviceable life is limited.
Summary of the invention
The utility model is the shortcoming that overcomes above-mentioned waist wheel gas meter structure, and the gas duplex rotor meter that provides a kind of three tooth helical rotors to constitute makes it improve measuring accuracy and serviceable life.
A kind of 3-teeth double-rotor flowmeter, metering cavity 5 rear portions connect sender magnet steel 3, sensor 2, electronic counter 1, have rotor in the metering cavity 5, it is characterized in that rotor is three tooth helical rotors 4, and rotor is the Arc Cycloid type; Metering cavity 5 connects birotor by bearing 6, driven wheel 7, and rotor is fixedlyed connected with armature spindle; Birotor axle front end is fixedlyed connected with driven wheel 7 respectively, two driven wheel engagements; The fixedly connected sender magnet steel 3 in one rotor rear end.
Described three tooth helical rotors are the Arc Cycloid type, and profile of tooth is to be combined by four sections curves, connects to form from crown prolate cycloid successively, curtate cyclod, involute urve, circular arc line.
Principle of work of the present utility model is that the gas duplex rotor meter promotes the rotor running by the inlet and outlet pressure difference, passes to sensor by the sender magnet steel, handles through smart electronics counting device to reach intelligent integrated flow and the instantaneous delivery of showing.
The utility model has overcome the shortcoming on above-mentioned existing flowmeter structure and the profile of tooth.The utility model 3-teeth double-rotor flowmeter adopts a pair of Arc Cycloid three tooth helical rotors, the advantage of its profile of tooth is, during a pair of gear teeth flank of tooth transmission is the engagement of a pair of convex-concave flank of tooth, induced normal curvature at conjugation contact point place is very little, on certain direction, can reach zero, improve the contact strength of the flank of tooth, be difficult for spot corrosion.Adopt this profile of tooth, make helical rotor in engaged transmission, possess good continuous potted line, running steadily can be widely used in the gas Trade Measures.This three tooth helical rotor engages and seals are good, running at the uniform velocity, steadily, pulse free, measuring accuracy height; The flank of tooth is friction not, the driven wheel that has, in engagement in rotation, make between rotor and the rotor do not rub, noise is little, increase serviceable life.
Description of drawings
Accompanying drawing 1 is the utility model structural representation.
Accompanying drawing 2 is Arc Cycloid three tooth helical rotor engaging structure synoptic diagram.
1 electronic counter, 2 sensors, 3 magnet steel, 4 helical rotors, 5 metering cavitys, 6 bearings, 7 driven wheels.
Embodiment
The utility model is provided by following examples and accompanying drawing thereof.See accompanying drawing 1～2.
A kind of 3-teeth double-rotor flowmeter, metering cavity 5 rear portions connect sender magnet steel 3, sensor 2, electronic counter 1, has rotor in the metering cavity 5, it is characterized in that rotor is three tooth helical rotors 4, rotor is the Arc Cycloid type, profile of tooth is to be combined by four sections curves, connects to form from crown prolate cycloid successively, curtate cyclod, involute urve, circular arc line.Metering cavity 5 connects birotor by bearing 6, driven wheel 7, and rotor is fixedlyed connected with armature spindle; Birotor axle front end is fixedlyed connected with driven wheel 7 respectively, two driven wheel engagements; The fixedly connected sender magnet steel 3 in one rotor rear end.
Claims (2)
1, a kind of 3-teeth double-rotor flowmeter, metering cavity (5) rear portion connects sender magnet steel (3), sensor (2), electronic counter (1), have rotor in the metering cavity (5), it is characterized in that rotor is three tooth helical rotors (4), rotor is the Arc Cycloid type; Metering cavity (5) connects birotor by bearing (6), driven wheel (7), and rotor is fixedlyed connected with armature spindle; Birotor axle front end is fixedlyed connected with driven wheel (7) respectively, two driven wheel engagements; The fixedly connected sender magnet steel in one rotor rear end (3).
2, according to the described gas duplex rotor meter of claim 1, it is characterized in that described three tooth helical rotors are the Arc Cycloid type, profile of tooth is to be combined by four sections curves, connects to form from crown prolate cycloid successively, curtate cyclod, involute urve, circular arc line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620040422 CN2886510Y (en) | 2006-03-23 | 2006-03-23 | Three-tooth dual-rotor gas flowmeter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620040422 CN2886510Y (en) | 2006-03-23 | 2006-03-23 | Three-tooth dual-rotor gas flowmeter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2886510Y true CN2886510Y (en) | 2007-04-04 |
Family
ID=37961598
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620040422 Expired - Lifetime CN2886510Y (en) | 2006-03-23 | 2006-03-23 | Three-tooth dual-rotor gas flowmeter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2886510Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101608937B (en) * | 2008-06-20 | 2010-12-01 | 安徽理工大学 | Low-pulsation gear flowmeter of composite gear type |
-
2006
- 2006-03-23 CN CN 200620040422 patent/CN2886510Y/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101608937B (en) * | 2008-06-20 | 2010-12-01 | 安徽理工大学 | Low-pulsation gear flowmeter of composite gear type |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20070404 |
|
| EXPY | Termination of patent right or utility model |