CN200950115Y - Liquid viscosity measurement device using magnetic bearing - Google Patents
Liquid viscosity measurement device using magnetic bearing Download PDFInfo
- Publication number
- CN200950115Y CN200950115Y CN 200620131792 CN200620131792U CN200950115Y CN 200950115 Y CN200950115 Y CN 200950115Y CN 200620131792 CN200620131792 CN 200620131792 CN 200620131792 U CN200620131792 U CN 200620131792U CN 200950115 Y CN200950115 Y CN 200950115Y
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- China
- Prior art keywords
- magnetic bearing
- measurement axis
- measuring device
- viscosity
- model
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- 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
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- 238000005259 measurement Methods 0.000 title claims abstract description 30
- 239000007788 liquid Substances 0.000 title claims abstract description 22
- 230000002093 peripheral effect Effects 0.000 claims description 10
- 239000000126 substance Substances 0.000 abstract description 3
- 239000003814 drug Substances 0.000 abstract description 2
- 235000013305 food Nutrition 0.000 abstract description 2
- 238000005299 abrasion Methods 0.000 abstract 1
- 239000003208 petroleum Substances 0.000 abstract 1
- 238000000034 method Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 210000001138 tear Anatomy 0.000 description 1
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Abstract
The utility model relates to a liquid viscosity measuring device which consists of a measuring cylinder, a rotary measurement axis, a rotary drive and a speed measuring device; the bottom of the rotary measurement axis is a pivot; and the top is a magnetic bearing of the measurement axis, one or a plurality of surrounding magnetic bearings are arranged around the magnetic bearing. The magnetic bearing can reduce friction force brought by the pivot of the support system of the measurement axis, the friction force capable of affecting the measurement of the viscosity measuring device to the viscosity resistance of the liquid. Therefore, the utility model has quite high precision in measuring the low viscosity liquid. Meanwhile, the non-contact supporting of the magnetic bearing can also reduce abrasion to the rotary measurement axis and extend the service life of the measurement axis, so as to extend the service life of the whole device. The model can be widely applied in light industrial, chemical industrial, medicine, foods and petroleum departments.
Description
Technical field
The utility model relates to the surveying instrument technical field, specifically, is the measurement mechanism that liquid viscosity is measured in a kind of rotary process.
Technical background
Viscosity measurement is the indispensable technology in a plurality of fields such as oil, chemical industry, metallurgy, national defence, health care, with obtain to detect accurately that data, production procedure are controlled, improved the quality of products, exploitation and energy savings all have inseparable relation.
At present, existing rotary liquid viscosity measuring device as shown in Figure 1.In the measurement tube 9 of this measurement mechanism, the wheel measuring axle 1 that is used to connect viscosity sensor 6 has up and down that two pivots 2 are used for supporting.The velocity survey part that is set with rotating driver 3 on the wheel measuring axle 1 and is made up of motor 4 and velometer 5, they are all worked with the way of contact or noncontact mode with wheel measuring axle 1.Its measuring principle is, under the situation of same driving force, and the liquid that viscosity is big, its viscous resistance is also big, acts on the resistance that the viscosity sensor 6 that is connected on the wheel measuring axle 1 produces and can reduce rotating speed.Therefore under the situation of given driving force, measure the viscosity number that rotating speed can obtain liquid.Such liquid viscosity measuring device, its shortcoming are, the liquid lower to viscosity, and measuring accuracy is not enough, and error is bigger; In addition, topmost member wheel measuring axle 1 weares and teares easily, often needs to change.
The utility model content
The utility model has overcome above-mentioned shortcoming, and a kind of liquid viscosity measuring device is provided.
The technical scheme in the invention for solving the technical problem is:
This liquid viscosity measuring device partly is made up of measurement tube, wheel measuring axle, rotating driver, velocity survey, the bottom of wheel measuring axle is a pivot, the top is the measurement axis magnetic bearing, is provided with one or more peripheral magnetic bearings around this magnetic bearing in addition.
For the convenience that illustrates, the magnetic bearing at wheel measuring axle top is called " measurement axis magnetic bearing ", the magnetic bearing around the measurement axis magnetic bearing is called " peripheral magnetic bearing ".But no matter be which kind of magnetic bearing, their structures own are duplicate.
Magnetic bearing can adopt one or more according to the needs of stability and bearing.Magnetic bearing adopt suction and thrust mode all can, be good especially with suction.
The utility model adopts single shaft apical branch support measurement axis, and other anchorage forces of axle are from magnetic bearing.Because magnetic bearing is contactless support, so this device can reduce the intrinsic friction force that the pivot by the measurement axis support system brings, this friction force can influence the measurement of device for measuring viscosity to the viscous resistance of liquid, particularly to the measurement of low-viscosity (mobile) liquid, influences especially obvious.The utility model has used magnetic bearing dexterously, has reduced intrinsic friction force, thereby the utility model has very high precision to the measurement of low-viscosity (mobile) liquid.Simultaneously, the contactless support of magnetic bearing can also prolong the serviceable life of wheel measuring axle, thereby prolongs the life-span of whole device.The utility model can be widely used in departments such as light industry, chemical industry, medicine, food, oil.
Description of drawings
Fig. 1 is the structural representation of existing liquid viscosity measuring device.
Fig. 2 is the structural representation of the utility model embodiment 1.
Fig. 3 is the structural representation of the utility model embodiment 2.
Description of reference numerals: 1. wheel measuring axle; 2. pivot; 3. rotating driver; 4. motor; 5. velometer; 6. viscosity sensor; 7. measurement axis magnetic bearing; 8. peripheral magnetic bearing; 9. measure tube; 10. top cover; 11. bearing seat.
Embodiment
As shown in Figure 2, the velocity survey that this liquid viscosity measuring device is made up of measurement tube 9, wheel measuring axle 1, rotating driver 3, motor 4 and velometer 5 is partly formed, the bottom of wheel measuring axle 1 is a pivot 2, the top is a measurement axis magnetic bearing 7, is provided with a peripheral magnetic bearing 8 above this magnetic bearing 7 in addition.This periphery magnetic bearing 8 places on the top cover 10 of measuring tube 9, and the bottom pivot 2 of the center of bearing 8 and wheel measuring axle 1 is on same axis.
As shown in Figure 3, on the basis of embodiment 1, a peripheral magnetic bearing 8 is installed also under measurement axis magnetic bearing 7, this periphery magnetic bearing 8 is with a bearing seat 11, and this bearing seat 11 is used to support this periphery magnetic bearing 8.
More than the liquid viscosity measuring device of employing magnetic bearing provided by the utility model is described in detail, used specific case herein principle of the present utility model and embodiment are set forth, the explanation of above embodiment just is used for helping to understand method of the present utility model and core concept thereof; Simultaneously, for one of ordinary skill in the art, according to thought of the present utility model, the part that all can change in specific embodiments and applications, in sum, this description should not be construed as restriction of the present utility model.
Claims (3)
1. liquid viscosity measuring device, partly form by measurement tube, wheel measuring axle, rotating driver, velocity survey, it is characterized in that: the bottom of wheel measuring axle is a pivot, the top is the measurement axis magnetic bearing, is provided with one or more peripheral magnetic bearings around this magnetic bearing in addition.
2. liquid viscosity measuring device according to claim 1 is characterized in that: described peripheral magnetic bearing is one, places to measure on the tube top cover, and the bottom pivot of bearing center and wheel measuring axle is on same axis.
3. liquid viscosity measuring device according to claim 2 is characterized in that: a peripheral magnetic bearing is installed under the measurement axis magnetic bearing, and this periphery magnetic bearing is with a bearing seat.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620131792 CN200950115Y (en) | 2006-08-28 | 2006-08-28 | Liquid viscosity measurement device using magnetic bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620131792 CN200950115Y (en) | 2006-08-28 | 2006-08-28 | Liquid viscosity measurement device using magnetic bearing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN200950115Y true CN200950115Y (en) | 2007-09-19 |
Family
ID=38892656
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620131792 Expired - Fee Related CN200950115Y (en) | 2006-08-28 | 2006-08-28 | Liquid viscosity measurement device using magnetic bearing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN200950115Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102879302A (en) * | 2012-10-09 | 2013-01-16 | 山东大学 | Wide-range magnetic field viscometer for high-temperature melt, and method for measuring viscosity by using same |
| CN103822853A (en) * | 2014-03-20 | 2014-05-28 | 北京中勤世帝生物技术有限公司 | Rotary viscosity measurement device |
| US9052177B2 (en) | 2010-07-21 | 2015-06-09 | Renishaw Plc | Metrology apparatus |
-
2006
- 2006-08-28 CN CN 200620131792 patent/CN200950115Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9052177B2 (en) | 2010-07-21 | 2015-06-09 | Renishaw Plc | Metrology apparatus |
| CN102879302A (en) * | 2012-10-09 | 2013-01-16 | 山东大学 | Wide-range magnetic field viscometer for high-temperature melt, and method for measuring viscosity by using same |
| CN103822853A (en) * | 2014-03-20 | 2014-05-28 | 北京中勤世帝生物技术有限公司 | Rotary viscosity measurement device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Beijing world emperor Scientific Instruments Inc Assignor: Li Gang Contract fulfillment period: 2009.6.19 to 2014.6.18 Contract record no.: 2009990000697 Denomination of utility model: Liquid viscosity measurement device using magnetic bearing Granted publication date: 20070919 License type: Exclusive license Record date: 20090626 |
|
| LIC | Patent licence contract for exploitation submitted for record |
Free format text: EXCLUSIVE LICENSE; TIME LIMIT OF IMPLEMENTING CONTACT: 2009.6.19 TO 2014.6.18; CHANGE OF CONTRACT Name of requester: BEIJING SHIDI SCIENTIFIC INSTRUMENT CO.,LTD. Effective date: 20090626 |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20070919 Termination date: 20100828 |