CN201069444Y - Stern shaft rotating speed measuring device - Google Patents
Stern shaft rotating speed measuring device Download PDFInfo
- Publication number
- CN201069444Y CN201069444Y CNU2007200411305U CN200720041130U CN201069444Y CN 201069444 Y CN201069444 Y CN 201069444Y CN U2007200411305 U CNU2007200411305 U CN U2007200411305U CN 200720041130 U CN200720041130 U CN 200720041130U CN 201069444 Y CN201069444 Y CN 201069444Y
- Authority
- CN
- China
- Prior art keywords
- magnetic induction
- stern
- nut
- rotating speed
- measuring device
- 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
Links
- 230000006698 induction Effects 0.000 claims abstract description 20
- 230000005291 magnetic effect Effects 0.000 claims abstract description 20
- 239000000523 sample Substances 0.000 claims abstract description 18
- 239000003302 ferromagnetic material Substances 0.000 claims abstract description 6
- 238000000034 method Methods 0.000 claims description 4
- 239000000463 material Substances 0.000 abstract description 5
- 238000001514 detection method Methods 0.000 abstract description 2
- 230000000694 effects Effects 0.000 abstract description 2
- 229910000831 Steel Inorganic materials 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 238000004134 energy conservation Methods 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
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- Investigating Or Analyzing Materials By The Use Of Magnetic Means (AREA)
Abstract
A stern shaft rotating speed measuring device relates to the technical field of rotating shaft rotating speed detection. The device comprises a flange plate concentrically connected to a stern shaft, wherein at least two groups of screw caps made of ferromagnetic materials are uniformly distributed on the outer end face of the flange plate, the screw caps are equal in diameter with the axle center of the stern shaft, two magnetic induction probes are arranged on the outer side of the flange plate, and the magnetic induction probes are respectively connected with a speed processor through signal lines. The utility model discloses utilize the protrusion nut of current stern axle back bell, this nut material is ferromagnetic material, utilizes the magnetic induction effect, through the magnetic induction probe, directly gathers rotational speed data. The utility model discloses need not change original structure, add encumbrance shroud ring or rack, can alleviate the load, easy to assemble can also reach energy-conserving, economize the purpose of material.
Description
Technical field
The utility model relates to a kind of detection technique field of rotating shaft rotating speed.
Background technology
In order in time to understand the velocity of rotation of screw shaft of ship, current is to increase shroud ring on stern tube shaft mostly, adds magnet steel or tooth bar, by the magnetic induction probe that cooperates with it, magnet steel or tooth bar by the interval time of magnetic induction probe, is measured the stern tube shaft rotating speed.Because state stern tube shaft rotating speed is very fast usually, come off in order to prevent above-mentioned associated components, magnet steel or tooth bar have all been adopted the mounting means of reinforcing, not only inconvenience is installed to making, and, the original equipment design also changed, strengthen and bear a heavy burden, also cause the energy consumption of bringing because of testing the speed.
The utility model content
The utility model purpose is to be the design of testing the speed a kind of convenient install, the do not change former design of stern tube shaft, energy-conservation, the stern tube shaft rotation-speed measuring device of economizing material.
The utility model comprises the ring flange that is connected with one heart on the stern tube shaft, the nut that uniform at least two group ferromagnetic materials are made on the outer face of ring flange, each nut and stern tube shaft axle center are isometrical, arrange two magnetic induction probes in the outside of described ring flange, described magnetic induction probe is connected with the velocity process device by signal wire respectively.
The utility model utilizes the protrusion nut of existing stern tube shaft backrest bell, and this nut material is a ferromagnetic material, utilizes the magnetic induction effect, by the magnetic induction probe, directly gathers rotary speed data.The utility model does not need to change original structure, adds burdensome shroud ring or tooth bar, can alleviate load, the convenient installation, the purpose of can also reach energy-conservation, economizing material.
In addition, in order in time to understand the stern tube shaft rotation direction, described magnetic induction probe is two groups, and the spacing of two groups of magnetic induction probes is not more than the spacing of adjacent two nuts, and each group is connected with the velocity process device respectively.Can judge the stern tube shaft forward and backward by collecting adjacent nut elder generation, back information.
Description of drawings
Fig. 1 is a kind of structural representation of the present utility model.
Fig. 2 is the right side figure of Fig. 1.
Embodiment
As shown in Figure 1, 2, be connected with ring flange 2 with one heart on stern tube shaft 1, concentric mounting flange 3 on transmission shaft 4 connects at eight groups of interior web members by bolt 5,6, nut 7,8 between the ring flange 2,3.
More than eight groups of web member bolts, nuts make by ferromagnetic material.Eight nut arrangements are on the outer face of ring flange 2, and the axle center of each nut and stern tube shaft 1 is isometrical.Arrange two groups of magnetic induction probes 9,10 in the outside of ring flange 2, magnetic induction probe 9,10 can be fixed on the frame, and the spacing of two groups of magnetic induction probes 9,10 is not more than the spacing of adjacent two nuts, and magnetic induction probe 9,10 is connected with velocity process device 13 by signal wire 11,12 respectively.
Claims (2)
1. stern tube shaft rotation-speed measuring device, comprise the ring flange that is connected with one heart on the stern tube shaft, it is characterized in that the nut that uniform at least two group ferromagnetic materials are made on the outer face of ring flange, each nut and stern tube shaft axle center are isometrical, arrange the magnetic induction probe in the outside of described ring flange, described magnetic induction probe is connected with the velocity process device by signal wire.
2. according to the described stern tube shaft rotation-speed measuring device of claim 1, it is characterized in that described magnetic induction probe is two groups, the spacing of two groups of magnetic induction probes is not more than the spacing of adjacent two nuts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200411305U CN201069444Y (en) | 2007-07-31 | 2007-07-31 | Stern shaft rotating speed measuring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200411305U CN201069444Y (en) | 2007-07-31 | 2007-07-31 | Stern shaft rotating speed measuring device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201069444Y true CN201069444Y (en) | 2008-06-04 |
Family
ID=39490833
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200411305U Expired - Fee Related CN201069444Y (en) | 2007-07-31 | 2007-07-31 | Stern shaft rotating speed measuring device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201069444Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103698550A (en) * | 2012-12-17 | 2014-04-02 | 武汉理工大学 | Ship tail shaft speed measurement device with single Hall proximity type sensor |
| CN110768185A (en) * | 2019-09-18 | 2020-02-07 | 沪东中华造船(集团)有限公司 | Sealing structure for leading out cable on stern tube and mounting method thereof |
-
2007
- 2007-07-31 CN CNU2007200411305U patent/CN201069444Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103698550A (en) * | 2012-12-17 | 2014-04-02 | 武汉理工大学 | Ship tail shaft speed measurement device with single Hall proximity type sensor |
| CN103698550B (en) * | 2012-12-17 | 2017-01-11 | 武汉理工大学 | Ship tail shaft speed measurement device with single Hall proximity type sensor |
| CN110768185A (en) * | 2019-09-18 | 2020-02-07 | 沪东中华造船(集团)有限公司 | Sealing structure for leading out cable on stern tube and mounting method thereof |
| CN110768185B (en) * | 2019-09-18 | 2021-02-02 | 沪东中华造船(集团)有限公司 | Sealing structure for leading out cable on stern tube and mounting method thereof |
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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: Jiangsu Huahao Marine Electrical Appliance Co., Ltd. Assignor: Hua Guilong Contract record no.: 2010320000276 Denomination of utility model: Rotary speed measuring device for ship axis Granted publication date: 20080604 License type: Exclusive License Record date: 20100323 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080604 Termination date: 20140731 |
|
| EXPY | Termination of patent right or utility model |