CN2856981Y - Airtight magnetic driving gear for aerosol measurement - Google Patents
Airtight magnetic driving gear for aerosol measurement Download PDFInfo
- Publication number
- CN2856981Y CN2856981Y CN 200520146802 CN200520146802U CN2856981Y CN 2856981 Y CN2856981 Y CN 2856981Y CN 200520146802 CN200520146802 CN 200520146802 CN 200520146802 U CN200520146802 U CN 200520146802U CN 2856981 Y CN2856981 Y CN 2856981Y
- Authority
- CN
- China
- Prior art keywords
- ring magnet
- airtight
- airtight housing
- gas
- magnet
- 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
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- Arrangements For Transmission Of Measured Signals (AREA)
Abstract
The utility model pertains to the field of transmission device and especially relates to an aerosol testing gas seal magnetic force transmission device including: a gas-tight shell where a columniform convex part is positioned, and an inside track magnet and an outside track magnet are positioned in and out of the convex part for transmitting. The aim of un-touch of the transmission is achieved by the magnetic force of the magnet. A formfeed distance measuring plate of an aerosol continuous monitoring meter can be installed on the external of the gas-tight shell to reduce the volume and weight of the gas-tight shell and to simplify the installing and sealing process and also to reduce the difficulty of daily maintaining.
Description
Technical field
The utility model belongs to the gearing field, is specifically related to a kind of airtight magnetic drive device.
Background technology
The present invention is improved on the basis of the paper feed Sampling techniques of CAM-II radioactive aerosol continuous monitor.This CAM-II is used for radioaerosol continuous monitoring equipment.Because the paper feed range finding dish of this CAM-II is installed in the seal chamber, seal cavity is increased, strengthened volume and weight, and very inconvenient to the installation and maintenance of paper feed range finding dish, mainly contain following shortcoming and defect: 1. Installation and Debugging difficulty is big; 2. seal cavity is big, has strengthened volume and weight; 3. sealing difficulty is big.
Summary of the invention
The utility model is installed in paper feed range finding dish in the seal chamber at the CAM-II radioactive aerosol continuous monitor, and cause seal cavity to increase thus, strengthened problems such as volume and weight, a kind of gearing of the gas-tight shell external body that paper feed range finding dish can be installed in monitor is provided and uses the monitor of this gearing.
The airtight magnetic drive device of a kind of gasoloid, comprise airtight housing, airtight housing is provided with a columniform projection, be provided with input shaft end in airtight enclosure interior, be provided with the inner ring magnet in the end of input shaft end, this inner ring magnet just is positioned at the projection inside of airtight housing, is provided with the output axle head in the protruding outside of airtight housing, the output axle head is provided with circular outer ring magnet, and the outer ring magnet just is enclosed within the outside of airtight case protrusion; The concentricity of inner ring magnet and outer ring magnet is within ± 0.1.
The utility model reaches the not purpose of Contact Transmission by the magnetic force of magnet, paper feed range finding dish on the gasoloid continuous monitor can be installed in the outside of airtight housing by this drive method, so both reduced the volume and weight of airtight housing, simplify the difficulty of installing and sealing, also reduced the difficulty of daily servicing simultaneously.
Description of drawings
Fig. 1 is an airtight magnetic drive device side cut-away view.
Fig. 2 be among Fig. 1 A-A to observation cut-open view.
Among the figure:
1, airtight housing; 2, outer ring magnet; 3, output axle head; 4, inner ring magnet; 5, external fixing rack; 6, inner fixed stand; 7, input shaft end.
Embodiment
Below in conjunction with embodiment the utility model is further elaborated.
Inner fixed stand 6 is provided with input shaft end 7 as shown in Figure 1, and the end of input shaft end 7 is provided with inner ring magnet 4, and input shaft end 7 connects filter paper, and can drive input shaft end 7 rotations when filter paper rotates.Fixed mount 6, input shaft end 7 and filter paper all are sealed in the inside of airtight housing 1 by airtight housing 1, and are provided with a cylindrical protrusions on airtight housing 1, make the inner ring magnet 4 that is provided with on the input shaft end 7 just place the projection of airtight housing 1 inner.Be provided with the outer ring magnet 2 of annular in the outside of airtight housing 1 projection, the concentricity of inner ring magnet 4 and outer ring magnet 2 is between ± 0.1.Corresponding because the N utmost point of the effect inner ring magnet 4 of magnetic force can be inhaled mutually with the S utmost point of outer ring magnet 2, as shown in Figure 2.Outer ring magnet 2 is arranged on the output axle head 3, and output axle head 3 is connected with paper feed range finding dish, can drive paper feed range finding dish and rotate together when output axle head 3 rotates, and output axle head 3 is arranged on the external fixing rack 5.
This gearing is in work, by rotating band driven input shaft end 7 rotations of the filter paper in the airtight housing 1; The rotation of input shaft end 7 drives the rotation of inner ring magnet 4 again; Because the effect of magnetic force, the rotation of inner ring magnet 4 can drive the rotation of outer ring magnet 2; Finally drive the rotation of paper feed range finding dish because the rotation of magnet 2 can drive the rotation of output axle head 3, thereby finish inside and outside transmission process.
Claims (1)
1. airtight magnetic drive device of gasoloid, comprise airtight housing (1), it is characterized in that: airtight housing (1) is provided with a columniform projection, be provided with input shaft end (7) in airtight housing (1) inside, be provided with inner ring magnet (4) in the end of input shaft end (7), this inner ring magnet (4) just is positioned at the projection inside of airtight housing (1), be provided with output axle head (3) in the protruding outside of airtight housing (1), output axle head (3) is provided with circular outer ring magnet (2), and outer ring magnet (2) just is enclosed within the outside of airtight housing (1) projection; The concentricity of inner ring magnet (4) and outer ring magnet (2) is within ± 0.1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520146802 CN2856981Y (en) | 2005-12-23 | 2005-12-23 | Airtight magnetic driving gear for aerosol measurement |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520146802 CN2856981Y (en) | 2005-12-23 | 2005-12-23 | Airtight magnetic driving gear for aerosol measurement |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2856981Y true CN2856981Y (en) | 2007-01-10 |
Family
ID=37600285
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520146802 Expired - Fee Related CN2856981Y (en) | 2005-12-23 | 2005-12-23 | Airtight magnetic driving gear for aerosol measurement |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2856981Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107402282A (en) * | 2016-05-19 | 2017-11-28 | 中国辐射防护研究院 | A kind of radioaerosol monitoring device easily moved |
-
2005
- 2005-12-23 CN CN 200520146802 patent/CN2856981Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107402282A (en) * | 2016-05-19 | 2017-11-28 | 中国辐射防护研究院 | A kind of radioaerosol monitoring device easily moved |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20070110 Termination date: 20100125 |