CN208021696U - A kind of large ship propeller blade - Google Patents
A kind of large ship propeller blade Download PDFInfo
- Publication number
- CN208021696U CN208021696U CN201820152583.3U CN201820152583U CN208021696U CN 208021696 U CN208021696 U CN 208021696U CN 201820152583 U CN201820152583 U CN 201820152583U CN 208021696 U CN208021696 U CN 208021696U
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- CN
- China
- Prior art keywords
- propeller
- rotation support
- large ship
- rotating vane
- utility
- 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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Abstract
The utility model discloses a kind of large ship propeller blades, including rotation support, propeller and rotating vane, rotation support runs through propeller, and propeller is fixed on rotation support top end by fastener head, and propeller is equipped with several rotating vanes, rotating vane surface is equipped with several through-holes, a kind of large ship propeller blade of the utility model, the through-hole of setting effectively reduce the resistance of propeller, save the energy, spin up rate, the utility model is generally applicable and shipbuilding industry.
Description
Technical field
The utility model is related to mechanical equipment technical fields, are to be related to a kind of large ship propeller more particularly
Blade.
Background technology
(often also referred to as " marine propeller ") when propeller, particularly marine propeller are run, from certain revolution
Start that cavitation may will be generated on propeller.In the case of marine propeller, in the propulsion side of propeller blade
Prodigious overvoltage is formed on (front side in other words), at the same time forms low pressure on the rear side of propeller blade, low pressure is there
Lead to the evaporation of water.
In the propeller of supercavitation, cavitation is purposefully utilized to be passed through using very small flow resistance guiding object
Liquid.For this purpose, for example described in 188 906A of US4 as, under higher revolution, conveyed to the rear side of blade empty
Gas, to allow propeller to enter supercavitation state.
However, in addition to this, cavitation is considered as undesirable problem in most cases, because it causes
It the formation of hollow area and is cleared up in water, and therefore leads to pressure oscillation, this can result in the consequence of blade erosion.In addition,
Acoustic signals are generated by cavitation, form interference under various application scenarios, and be likely to form operation
Limitation.Then, when using ship as research ship, acoustic signals can interfere the measurement in water.In addition, these noises are also possible to
Marine animal is interfered, the moving radius of pleasure boat or ferry boat thus may be for example limited to.Under water in the case of ship, acoustic signals
The property detected of submersible vessels may be caused to improve.
Similar problem may also generate in propeller, which will be present in the energy conversion in the fluid of movement
For mechanical energy, and thus drive such as engine or the such Work machine of pump.
Invention content
Goal of the invention：The purpose of this utility model is to provide a kind of large ship spiral shell for prior art deficiency and defect
Paddle blade is revolved, technical solution provided by the utility model has good practicability.
Technical solution：To achieve the goals above, technical solution used by the utility model is：A kind of large ship spiral shell
Revolve paddle blade, including rotation support, propeller and rotating vane.
Rotation support runs through propeller, and propeller is fixed on rotation support top end by fastener head, if propeller is equipped with
Dry rotating vane, rotating vane surface are equipped with several through-holes.
It rotates support surface and is equipped with sealant, the thickness of the sealant is the 1/2. of rotating vane thickness
Propeller inner wall is equipped with internal thread, and rotation support top end outer surface is equipped with external screw thread.
Groove is equipped between the through-hole on rotating vane surface, the groove depth of the groove is consistent with through-hole radius.
Advantageous effect：Compared with prior art, advantage is the utility model：
A kind of large ship propeller blade of the utility model, the through-hole of setting effectively reduce the resistance of propeller, save
The energy, spins up rate, and the utility model is generally applicable and shipbuilding industry.
Description of the drawings
Fig. 1 is a kind of structural schematic diagram of large ship propeller blade of the utility model.
Fig. 2 is the structural schematic diagram of rotating vane in a kind of large ship propeller blade of the utility model.
In figure：1, rotation support；2, propeller；3, rotating vane.
Specific implementation mode
With reference to embodiment, the utility model is further illustrated.
As shown in Figure 1, a kind of large ship propeller blade, including rotation support 1, propeller 2 and rotating vane 3.
Rotation support 1 runs through propeller 2, and propeller 2 is fixed on 1 top of rotation support by fastener head, is set on propeller 2
There are several rotating vanes 3,3 surface of rotating vane to be equipped with several through-holes.
1 surface of rotation support is equipped with sealant, and the thickness of the sealant is the 1/2. of 3 thickness of rotating vane
2 inner wall of propeller is equipped with internal thread, and 1 top outer surface of rotation support is equipped with external screw thread.
As shown in Fig. 2, being equipped with groove between the through-hole on 3 surface of rotating vane, the groove depth of the groove is consistent with through-hole radius.
It is enlightenment, through the above description, related work people with the above-mentioned desirable embodiment according to the utility model
Member can carry out various changes and amendments in the range of without departing from this item utility model technological thought completely.This practicality
Novel technical scope is not limited to the contents of the specification, it is necessary to determine that its is technical according to right
Range.
Claims (4)
1. a kind of large ship propeller blade, including rotation support (1), propeller (2) and rotating vane (3), feature exists
In：Rotation support (1) runs through propeller (2), and propeller (2) is fixed on rotation support (1) top, propeller by fastener head
(2) several rotating vanes (3) are equipped with, rotating vane (3) surface is equipped with several through-holes.
2. a kind of large ship propeller blade according to claim 1, it is characterised in that：Rotation support (1) surface is set
It is the 1/2 of rotating vane (3) thickness to have sealant, the thickness of the sealant.
3. a kind of large ship propeller blade according to claim 1, it is characterised in that：Propeller (2) inner wall is equipped with
Internal thread, rotation support (1) top outer surface are equipped with external screw thread.
4. a kind of large ship propeller blade according to claim 1, it is characterised in that：Rotating vane (3) surface
Groove is equipped between through-hole, the groove depth of the groove is consistent with through-hole radius.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820152583.3U CN208021696U (en) | 2018-01-30 | 2018-01-30 | A kind of large ship propeller blade |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820152583.3U CN208021696U (en) | 2018-01-30 | 2018-01-30 | A kind of large ship propeller blade |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208021696U true CN208021696U (en) | 2018-10-30 |
Family
ID=63903364
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820152583.3U Expired - Fee Related CN208021696U (en) | 2018-01-30 | 2018-01-30 | A kind of large ship propeller blade |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208021696U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021184592A1 (en) * | 2020-03-20 | 2021-09-23 | 中国矿业大学 | Permanent magnet direct drive-type gas film resistance reduction slurry pump |
-
2018
- 2018-01-30 CN CN201820152583.3U patent/CN208021696U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021184592A1 (en) * | 2020-03-20 | 2021-09-23 | 中国矿业大学 | Permanent magnet direct drive-type gas film resistance reduction slurry pump |
| US11371522B2 (en) | 2020-03-20 | 2022-06-28 | China University Of Mining And Technology | Permanent magnet direct-drive slurry pump based on gas film drag reduction |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20181030 Termination date: 20200130 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |