CN201974202U - Split type dual-display Roots flowmeter - Google Patents
Split type dual-display Roots flowmeter Download PDFInfo
- Publication number
- CN201974202U CN201974202U CN201020659610XU CN201020659610U CN201974202U CN 201974202 U CN201974202 U CN 201974202U CN 201020659610X U CN201020659610X U CN 201020659610XU CN 201020659610 U CN201020659610 U CN 201020659610U CN 201974202 U CN201974202 U CN 201974202U
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- wheel
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- roots
- magnet steel
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Abstract
The utility model relates to a split type dual-display Roots flowmeter which comprises a Roots meter and display units. The display units comprise an electronic display unit and a mechanical display unit. The electronic display unit comprises the following components: a magnetic steel wheel which is coaxially connected with one end of a rotor shaft fixedly, magnetic steel which is provided at one side surface of the circumference of the magnetic steel wheel, a flow sensor which can sense the magnetic field variation of the magnetic steel, and an integrating instrument which is connected with the flow sensor. The mechanical display unit comprises the following components: a counting wheel gearshaft which is coaxially connected with the other end of the rotor shaft fixedly, a dial wheel which is used for pushing a print wheel to rotate, and a gear set which is used for connecting a dial wheel shaft of the dial wheel with a gear shaft of the counting wheel. The gear set can realize deceleration from the gearshaft of the counting wheel to the dial wheel shaft. The split type dual-display Roots flowmeter settles the following technical problems: incapability of the prior-art single-display mechanical counting Roots flowmeter, low reliability of the single-display electronic counting Roots flowmeter, and inaccurate counting of the dual-display Roots flowmeter with a mechanical counter as a core. The split type dual-display Roots flowmeter forms dual displays.
Description
Technical field
The utility model relates to a kind of Roots type flowmeter.
Background technology
Roots type flowmeter main body in the market is two kinds: 1, single explicit pure mechanical count Roots type flowmeter and pure electronic counting Roots type flowmeter; 2, with the mechanical counter be the two apparent Roots type flowmeter of core.
For single explicit Roots type flowmeter, pure mechanical count Roots type flowmeter can not carry out temperature and pressure compensation.Pure electronic counting Roots type flowmeter in case electronic section goes wrong, can not be counted.
In addition, be the two apparent Roots type flowmeter of core with the mechanical counter, just get the data on the mechanical counter, the situation that mechanical count and electronic counting are not complementary can appear during use, and cause the value sampling too big, count not accurate enough.
Summary of the invention
The utility model purpose provides a kind of split type two apparent Roots type flowmeters, and it has solved, and the explicit mechanical count Roots type flowmeter of existing list can not carry out temperature and pressure compensation, singly explicit electronic counting Roots type flowmeter poor reliability, mechanical counter are the not accurate enough technical matters of two apparent Roots type flowmeter counting of core.
Technical solution of the present utility model is:
A kind of split type two apparent Roots type flowmeters comprise that Roots shows and display unit,
Its special character is:
Described display unit comprises electronic display unit and mechanical display unit;
Described electronic display unit comprises with the coaxial magnet steel wheel that is connected 6 of armature spindle one end, is arranged on the magnet steel 7 of magnet steel wheel circumference side, the flow sensor 3, the integrating instrument 5 that links to each other with flow sensor 3 of changes of magnetic field that can responsive magnet steel 7;
Described mechanical display unit comprises with the coaxial counter wheel gear shaft 9 that is connected of the armature spindle other end, is used to promote the thumb wheel 15 of character wheel 11 rotations, is used to be connected the thumb wheel axle 14 of thumb wheel 15 and the gear set 10 of counter wheel gear shaft 9, and described gear set 10 can be realized the deceleration of counter wheel gear shaft 9 to thumb wheel axle 14.
Above-mentioned electronic display unit also comprises pressure transducer 2 and temperature sensor 4.
Above-mentioned flow sensor 3 is contained on the front end end cover 1, and itself and magnet steel are taken turns 6 magnet steel 7 surfaces at a distance of 1mm.
The utility model has the advantages that:
The utility model can be realized two accurately countings that show.Armature spindle 8 drives counting gear axle 9 and rotates, thereby 10 rotations of driven gear group drive thumb wheel axles 14 by gear set 10 again and slowly run, and are character wheel 11 video datas thereby make mechanical counter.Simultaneously, armature spindle 8 drives magnet steel wheel 6 and rotates, behind flow sensor 3, and video data on integrating instrument 5.So just constitute two showing.
Description of drawings
Fig. 1 is a structural representation of the present utility model;
The 1-front end end cover; The 2-pressure transducer; The 3-flow sensor; The 4-temperature sensor; The 5-integrating instrument; 6-magnet steel wheel; The 7-magnet steel; The 8-armature spindle; 9-counter wheel gear shaft; The 10-gear set; 11-character wheel: 12-rotor; 13-Roots gas outlet; 14-thumb wheel axle, the 15-thumb wheel.
Embodiment
A kind of split type two apparent Roots type flowmeters comprise that Roots shows and display unit, and display unit comprises electronic display unit and mechanical display unit; Electronic display unit comprise with the coaxial magnet steel wheel that is connected 6 of armature spindle right-hand member, be arranged on magnet steel wheel circumference side magnet steel 7, can responsive magnet steel 7 changes of magnetic field flow sensor 3, the integrating instrument 5 that links to each other with flow sensor 3, be used for pressure transducer 2 and temperature sensor 4 that responsive Roots shows internal pressure and temperature; Flow sensor 3 is contained on the front end end cover 1, and itself and magnet steel are taken turns 6 magnet steel 7 surfaces at a distance of 1mm, and flow sensor 3 reads the related data of rotor by magnet steel 7; Temperature sensor 4 is contained in the top of front end end cover 1, is in the top of air intake opening 13 with the rotor 12 of flowmeter.Pressure transducer 2 is contained in any position of front end end cover 1, only otherwise influence the installation of other parts.The data of temperature sensor 4, pressure transducer 2, flow sensor 3 are directly sent into integrating instrument 5.
The machinery display unit comprises with the coaxial counter wheel gear shaft 9 that is connected of armature spindle left end, is used to promote the thumb wheel 15 of character wheel 11 rotations, is used to be connected the thumb wheel axle 14 of thumb wheel 15 and the gear set 10 of counter wheel gear shaft 9, and gear set 10 can be realized the deceleration of counter wheel gear shaft 9 to thumb wheel axle 14.Because flowmeter armature spindle 8 rotating speed height, character wheel 11 can't directly be read, and rotates so armature spindle 8 drives counting gear axles 9, reduces the rotating speed of thumb wheel axles 14 by gear set 10 again, thereby makes the character wheel can sense data.
Claims (3)
1. split type two apparent Roots type flowmeters comprise that Roots shows and display unit,
It is characterized in that:
Described display unit comprises electronic display unit and mechanical display unit;
Described electronic display unit comprises with the coaxial magnet steel wheel (6) that is connected of armature spindle one end, is arranged on the magnet steel (7) of magnet steel wheel circumference side, the flow sensor (3), the integrating instrument (5) that links to each other with flow sensor (3) of changes of magnetic field that can responsive magnet steel (7);
Described mechanical display unit comprises with the coaxial counter wheel gear shaft (9) that is connected of the armature spindle other end, is used to promote the thumb wheel (15) of character wheel (11) rotation, is used to be connected the thumb wheel axle (14) of thumb wheel (15) and the gear set (10) of counter wheel gear shaft (9), and described gear set (10) can be realized the deceleration of counter wheel gear shaft (9) to thumb wheel axle (14).
2. split type two apparent Roots type flowmeters according to claim 1, it is characterized in that: described electronic display unit also comprises pressure transducer (2) and temperature sensor (4).
3. split type two apparent Roots type flowmeters according to claim 1 and 2, it is characterized in that: described flow sensor (3) is contained on the front end end cover (1), and itself and magnet steel are taken turns magnet steel (7) surface of (6) at a distance of 1mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020659610XU CN201974202U (en) | 2010-12-15 | 2010-12-15 | Split type dual-display Roots flowmeter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020659610XU CN201974202U (en) | 2010-12-15 | 2010-12-15 | Split type dual-display Roots flowmeter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201974202U true CN201974202U (en) | 2011-09-14 |
Family
ID=44579303
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201020659610XU Expired - Lifetime CN201974202U (en) | 2010-12-15 | 2010-12-15 | Split type dual-display Roots flowmeter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201974202U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104142164A (en) * | 2013-05-10 | 2014-11-12 | 罗美特（上海）自动化仪表有限公司 | Gas Roots flowmeter |
| CN114777865A (en) * | 2021-12-13 | 2022-07-22 | 浙江裕顺仪表有限公司 | Roots flow metering device for industrial gas prepayment |
-
2010
- 2010-12-15 CN CN201020659610XU patent/CN201974202U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104142164A (en) * | 2013-05-10 | 2014-11-12 | 罗美特（上海）自动化仪表有限公司 | Gas Roots flowmeter |
| CN114777865A (en) * | 2021-12-13 | 2022-07-22 | 浙江裕顺仪表有限公司 | Roots flow metering device for industrial gas prepayment |
| CN114777865B (en) * | 2021-12-13 | 2023-01-31 | 浙江裕顺仪表有限公司 | Roots flow metering device for industrial gas prepayment |
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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: 20110914 |
|
| CX01 | Expiry of patent term |