CN108032978A - A kind of pusher for boat for reducing noise - Google Patents
A kind of pusher for boat for reducing noise Download PDFInfo
- Publication number
- CN108032978A CN108032978A CN201711345016.6A CN201711345016A CN108032978A CN 108032978 A CN108032978 A CN 108032978A CN 201711345016 A CN201711345016 A CN 201711345016A CN 108032978 A CN108032978 A CN 108032978A
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- CN
- China
- Prior art keywords
- shaft
- section
- hull
- support plate
- casing
- 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.)
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63H—MARINE PROPULSION OR STEERING
- B63H1/00—Propulsive elements directly acting on water
- B63H1/02—Propulsive elements directly acting on water of rotary type
- B63H1/12—Propulsive elements directly acting on water of rotary type with rotation axis substantially in propulsive direction
- B63H1/14—Propellers
- B63H1/18—Propellers with means for diminishing cavitation, e.g. supercavitation
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- Ocean & Marine Engineering (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention discloses a kind of pusher for boat for reducing noise, including the casing being fixed on the outside of hull, driving motor is fixed with the inside of the hull, the drive end of the driving motor is connected with shaft, the one end of the shaft away from driving motor extends through hull and into casing, the casing is outwards divided into suction casing by hull, gentle section, closing in section and ejection section, it is surround on the side wall of the suction casing and is equipped with multiple suction inlets, fixing sleeve is connected to the first impeller in the shaft, first impeller is located in the water outlet of suction casing, the upside of the gentle section is equipped with protrusion, the protrusion is equipped with multiple exhausting-gas holes, the bore of the closing in section water inlet end is more than the bore of its water outlet.The present invention reduces the flow velocity of current, so as to facilitate the bubble in water to have time enough to rise in protrusion, and is discharged by exhausting-gas hole, air contact with internal side of shell wall is reduced, so as to reduce noise by the setting of gentle section.
Description
Technical field
The present invention relates to pusher technical field, more particularly to a kind of pusher for boat for reducing noise.
Background technology
Pusher for boat is the actuating unit of the advance of ship, it is that natural force, manpower or mechanical energy are converted into ship
The energy converter of thrust.
Propeller can be divided into active and two class of reaction equation by the mode of action.Fibre, the sail that ship advances are driven by manpower or wind-force
（See sailing boat）Deng to be active, paddle, big shield, paddle wheel, hydraulic propeller, propeller etc. are reaction equation.Modern transportation ship is adopted mostly
With reaction equation propeller, most widely used is propeller.
During the use of the spiral propeller of spot ship, pass through the agitation to water so that water is to the rear of ship
Flowing, produces reaction force, so that ship obtains the power to advance, and during this, the air in current can be with pushing away
Madial wall into device contacts, and produces larger noise, influences the ride experience of crewman and passenger.
To solve the above-mentioned problems, we have proposed a kind of pusher for boat for reducing noise.
The content of the invention
The purpose of the present invention is to solve the air in current in the prior art to be contacted with the madial wall of propeller, production
The problem of giving birth to larger noise, influencing crewman and passenger's ride experience, and a kind of pusher for boat of the reduction noise proposed.
To achieve these goals, present invention employs following technical solution：The present invention a kind of reduction noise it is peculiar to vessel
Pusher, including the casing on the outside of hull is fixed on, driving motor, the drive of the driving motor are fixed with the inside of the hull
Moved end is connected with shaft, and the one end of the shaft away from driving motor extends through hull and into casing, and the casing is by ship
Body is outwards divided into suction casing, gentle section, closing in section and sprays section, is surround on the side wall of the suction casing and is equipped with multiple suctions
Mouthful, fixing sleeve is connected to the first impeller in the shaft, and first impeller is located in the water outlet of suction casing, the gentle section
Upside is equipped with protrusion, and the protrusion is equipped with multiple exhausting-gas holes, and the bore of the closing in section water inlet end is more than the mouth of its water outlet
Footpath, two ports for spraying section are respectively fixed with the first support plate and the second support plate, and the shaft is away from driving motor
One end be rotatablely connected through the first support plate and with the second support plate, fixing sleeve is connected to the second impeller in the shaft, described
Second impeller surround between the first support plate and the second support plate, in first support plate and the second support plate and is equipped with
Multiple outlet passes.
In the pusher for boat of above-mentioned reduction noise, screw thread is socketed with retaining ring, the retaining ring in the shaft
Gasket ring is equipped with close to the side of hull, the gasket ring is set in shaft.
In the pusher for boat of above-mentioned reduction noise, the closing in section bending place is excessive using circular arc chamfering.
In the pusher for boat of above-mentioned reduction noise, the suction casing is in cone cylinder shape, and it is close to hull one end
Bore is more than the bore of its other end.
In the pusher for boat of above-mentioned reduction noise, circular arc is equipped with the madial wall of two ports of outlet pass
Chamfering.
In the pusher for boat of above-mentioned reduction noise, second support plate is equipped with rotation corresponding with shaft
Groove, the rotation slot are rotatablely connected by bearing and shaft.
Beneficial effect：The present invention reduces the flow velocity of current, so as to facilitate the bubble in water to have by the setting of gentle section
Time enough is risen in protrusion, and is discharged by exhausting-gas hole, air contact with internal side of shell wall is reduced, so as to reduce
Noise.
Brief description of the drawings
Fig. 1 is the structure diagram of the present invention；
Fig. 2 is the structure diagram of the second support plate in the present invention.
In figure：1 hull, 2 casings, 201 suction casings, 202 gentle sections, 203 closing in sections, 204 spray section, 3 driving motors, 4
Shaft, 5 suction inlets, 6 first impellers, 7 protrusions, 701 exhausting-gas holes, 8 first support plates, 9 second support plates, 10 second impellers, 11
Outlet pass, 12 retaining rings, 13 gasket rings.
Embodiment
Below in conjunction with the attached drawing in the embodiment of the present invention, the technical solution in the embodiment of the present invention is carried out clear, complete
Site preparation describes, it is clear that described embodiment is only part of the embodiment of the present invention, instead of all the embodiments.
As shown in Figs. 1-2, the pusher for boat of a kind of reduction noise of the invention, including it is fixed on the machine in the outside of hull 1
Shell 2, the inner side of hull 1 are fixed with driving motor 3, and the drive end of driving motor 3 is connected with shaft 4, and shaft 4 is away from driving motor
3 one end extends through hull 1 and into casing 2, and screw thread is socketed with retaining ring 12 in shaft 4, and retaining ring 12 is close to hull 1
Side is equipped with gasket ring 13, and gasket ring 13 is set in shaft 4, by rotation lock ring 12, so as to facilitate gasket ring
13 offset with hull 1, so as to ensure that the leakproofness of shaft 4 and 1 junction of hull, prevent 1 inner inlet of hull, seal at the same time
Gasket ring 13 facilitates the relative rotation between retaining ring 12 and casing 2, and casing 2 is outwards divided into suction casing 201 by hull 1, puts down
Slow section 202, closing in section 203 and ejection section 204, suction casing 201 is in cone cylinder shape, and its bore close to 1 one end of hull is more than it
The bore of the other end, facilitates the suction of water.
Around being equipped with multiple suction inlets 5 on the side wall of suction casing 201, fixing sleeve is connected to the first impeller 6 in shaft 4, and first
Impeller 6 is located in the water outlet of suction casing 201, and the upside of gentle section 202 is equipped with protrusion 7, and protrusion 7 is equipped with multiple exhausting-gas holes
701, the bore of 203 water inlet end of closing in section is more than the bore of its water outlet, and 203 bending place of closing in section uses circular arc chamfering mistake
Degree, facilitates water gently to be contacted with the madial wall of 203 bending place of closing in section by circular arc chamfering, so that avoid producing turbulent flow surge,
Reduce the generation of noise, two ports for spraying section 204 are respectively fixed with the first support plate 8 and the second support plate 9, and shaft 4 is remote
One end from driving motor 3 is rotatablely connected through the first support plate 8 and with the second support plate 9, and the second support plate 9 is equipped with turning
4 corresponding rotation slot of axis, rotation slot are rotatablely connected by bearing and shaft 4, facilitate the phase between shaft 4 and the second support plate 9
To rotating, fixing sleeve is connected to the second impeller 10 in shaft 4, the second impeller 10 be located at the first support plate 8 and the second support plate 9 it
Between, around being equipped with multiple outlet passes 11 in the first support plate 8 and the second support plate 9, facilitate current by 11 liang of outlet pass
Circular arc chamfering is equipped with the madial wall of a port, facilitates water gently to be contacted with the madial wall of outlet pass 11 by circular arc chamfering,
So as to avoid producing turbulent flow surge, reduce the generation of noise.
In the present invention, due to driving the driving effect of motor 3, so as to facilitate shaft 4 to drive the first impeller 6 and the second impeller
10 rotate, and similar fan produces the principle of wind, so that convenient promote water to the rear of hull 1, during this, current pass through
Suction inlet 5 enters in the casing 1 of propeller, and passes sequentially through suction casing 201, gentle section 202, closing in section 203 and spray section
204, gentle section 202 facilitates the gentle by the way that during this, the bubble in water rises, and is carried out by raised 7 pairs of bubbles of current
Collect, casing 2 is then discharged by exhausting-gas hole 701, closing in section 203 reduces bore, so that the flow velocity of current is improved, to facilitate hull
1 obtains the speed of higher, and the first support plate 8 prevents current from directly producing impact to the second impeller 10, so as to avoid the second leaf
The damage of wheel 10.
The foregoing is only a preferred embodiment of the present invention, but protection scope of the present invention be not limited thereto,
Any one skilled in the art the invention discloses technical scope in, technique according to the invention scheme and its
Inventive concept is subject to equivalent substitution or change, should be covered by the protection scope of the present invention.
Claims (6)
1. the pusher for boat of noise is reduced a kind of, including is fixed on hull（1）The casing in outside（2）, it is characterised in that it is described
Hull（1）Inner side be fixed with driving motor（3）, the driving motor（3）Drive end be connected with shaft（4）, the shaft
（4）Away from driving motor（3）One end run through hull（1）And to casing（2）Interior extension, the casing（2）By hull（1）Outwards
It is divided into suction casing（201）, gentle section（202）, closing in section（203）With ejection section（204）, the suction casing（201）Side
It is surround on wall and is equipped with multiple suction inlets（5）, the shaft（4）Upper fixing sleeve is connected to the first impeller（6）, first impeller（6）
Positioned at suction casing（201）Water outlet in, the gentle section（202）Upside be equipped with protrusion（7）, the protrusion（7）It is equipped with
Multiple exhausting-gas holes（701）, the closing in section（203）The bore of water inlet end is more than the bore of its water outlet, the ejection section（204）
Two ports be respectively fixed with the first support plate（8）With the second support plate（9）, the shaft（4）Away from driving motor（3）'s
The first support plate is run through in one end（8）And with the second support plate（9）Rotation connection, the shaft（4）Upper fixing sleeve is connected to the second leaf
Wheel（10）, second impeller（10）Positioned at the first support plate（8）With the second support plate（9）Between, first support plate（8）
With the second support plate（9）On around being equipped with multiple outlet passes（11）.
2. the pusher for boat according to claim 1 for reducing noise, it is characterised in that the shaft（4）Upper thread bush
It is connected to retaining ring（12）, the retaining ring（12）Close to hull（1）Side be equipped with gasket ring（13）, the gasket ring
（13）It is set in shaft（4）On.
3. the pusher for boat according to claim 1 for reducing noise, it is characterised in that the closing in section（203）Bending
Place is excessive using circular arc chamfering.
4. the pusher for boat according to claim 1 for reducing noise, it is characterised in that the suction casing（201）In cone
Tubular, and it is close to hull（1）The bore of one end is more than the bore of its other end.
5. the pusher for boat according to claim 1 for reducing noise, it is characterised in that the outlet pass（11）Two ends
Circular arc chamfering is equipped with the madial wall of mouth.
6. the pusher for boat according to claim 1 for reducing noise, it is characterised in that second support plate（9）On
It is equipped with and shaft（4）Corresponding rotation slot, the rotation slot pass through bearing and shaft（4）Rotation connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711345016.6A CN108032978B (en) | 2017-12-15 | 2017-12-15 | A kind of pusher for boat reducing noise |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711345016.6A CN108032978B (en) | 2017-12-15 | 2017-12-15 | A kind of pusher for boat reducing noise |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108032978A true CN108032978A (en) | 2018-05-15 |
| CN108032978B CN108032978B (en) | 2019-08-09 |
Family
ID=62103048
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711345016.6A Active CN108032978B (en) | 2017-12-15 | 2017-12-15 | A kind of pusher for boat reducing noise |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108032978B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109278967A (en) * | 2018-09-19 | 2019-01-29 | 中国舰船研究设计中心 | Aperture air deflector and pump-jet propulsor based on aperture water conservancy diversion method |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1125996A (en) * | 1966-03-12 | 1968-09-05 | H C F Porsche K G Ing | Propulsion units for water-borne craft |
| US6168485B1 (en) * | 1999-10-15 | 2001-01-02 | Outboard Marine Corporation | Pump jet with double-walled stator housing for exhaust noise reduction |
| US6270385B1 (en) * | 1999-09-07 | 2001-08-07 | Bombardier Motor Corporation Of America | Pump jet rotor housing modification for noise signature spectral control |
| CN101423112A (en) * | 2007-11-01 | 2009-05-06 | 本田技研工业株式会社 | Water-jet pump |
| CN101927823A (en) * | 2009-06-19 | 2010-12-29 | 李江平 | Ship propeller |
| CN102530217A (en) * | 2011-12-19 | 2012-07-04 | 四川大学 | Fast and efficient water spray propelling technology |
| CN203996853U (en) * | 2014-04-22 | 2014-12-10 | 颐廛精密工业有限公司 | Water spray flow control mechanism |
| CN206087246U (en) * | 2016-09-28 | 2017-04-12 | 珠海蓝创科技有限公司 | Take pipeline propeller of safeguard function |
-
2017
- 2017-12-15 CN CN201711345016.6A patent/CN108032978B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1125996A (en) * | 1966-03-12 | 1968-09-05 | H C F Porsche K G Ing | Propulsion units for water-borne craft |
| US6270385B1 (en) * | 1999-09-07 | 2001-08-07 | Bombardier Motor Corporation Of America | Pump jet rotor housing modification for noise signature spectral control |
| US6168485B1 (en) * | 1999-10-15 | 2001-01-02 | Outboard Marine Corporation | Pump jet with double-walled stator housing for exhaust noise reduction |
| CN101423112A (en) * | 2007-11-01 | 2009-05-06 | 本田技研工业株式会社 | Water-jet pump |
| CN101927823A (en) * | 2009-06-19 | 2010-12-29 | 李江平 | Ship propeller |
| CN102530217A (en) * | 2011-12-19 | 2012-07-04 | 四川大学 | Fast and efficient water spray propelling technology |
| CN203996853U (en) * | 2014-04-22 | 2014-12-10 | 颐廛精密工业有限公司 | Water spray flow control mechanism |
| CN206087246U (en) * | 2016-09-28 | 2017-04-12 | 珠海蓝创科技有限公司 | Take pipeline propeller of safeguard function |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109278967A (en) * | 2018-09-19 | 2019-01-29 | 中国舰船研究设计中心 | Aperture air deflector and pump-jet propulsor based on aperture water conservancy diversion method |
| CN109278967B (en) * | 2018-09-19 | 2020-04-21 | 中国舰船研究设计中心 | Tapping flow guider and pump jet propeller based on tapping flow guiding method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108032978B (en) | 2019-08-09 |
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