CN107215445A - Double duct reducing marine propeller - Google Patents
Double duct reducing marine propeller Download PDFInfo
- Publication number
- CN107215445A CN107215445A CN201710529742.7A CN201710529742A CN107215445A CN 107215445 A CN107215445 A CN 107215445A CN 201710529742 A CN201710529742 A CN 201710529742A CN 107215445 A CN107215445 A CN 107215445A
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- Prior art keywords
- propeller
- blade
- propeller hub
- ship
- gland
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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
- B63H1/28—Other means for improving propeller efficiency
-
- 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
- B63H1/20—Hubs; Blade connections
-
- 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
- B63H1/26—Blades
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63H—MARINE PROPULSION OR STEERING
- B63H5/00—Arrangements on vessels of propulsion elements directly acting on water
- B63H5/07—Arrangements on vessels of propulsion elements directly acting on water of propellers
- B63H5/14—Arrangements on vessels of propulsion elements directly acting on water of propellers characterised by being mounted in non-rotating ducts or rings, e.g. adjustable for steering purpose
- B63H5/15—Nozzles, e.g. Kort-type
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- Ocean & Marine Engineering (AREA)
- Sealing Devices (AREA)
Abstract
The present invention is a kind of double duct reducing marine propeller, including blade, propeller hub, O-ring seals, gland one, gland two, ship axle, pull bar, outer catheter, conduit gusset, inner catheter.The propeller is operationally, ship axle drives blade to be rotated along propeller direction of rotation, axial movement of the hydraulic variable diameter piston driving pull bar along ship axle in ship power cabin, each rack of pull bar and a partial gear cooperate, drive blade to be rotated around blade rake axis, change blade rake angle, change the effective diameter and propeller disc area of the propeller, so as to change the size of airscrew thrust, airscrew thrust consecutive variations are realized.The propeller produces additional thrust using double duct guiding current, improves propeller efficiency.
Description
Technical field
The present invention is a kind of double duct reducing marine propeller, and it is related to a kind of marine propeller, more particularly to a kind of
Propeller effective diameter, the marine propeller using double duct guiding current can be changed.
Background technology
The species of marine propeller is various, and common ship for civil use propeller mainly has conventional propeller（Or spacing
Oar）, shrouded propeller（Also referred to as mozzle propeller, abbreviation ducted propeller）, adjustable pitch propeller.Propeller has perhaps in itself
Many controllable parameters, such as pitch, skew back, rake.Adjustable pitch propeller is exactly to utilize to adjust angle of pitch realization control spiral
The technology of oar thrust.
Adjustable pitch propeller is also referred to as variable-pitch airscrew, abbreviation variable-pitch propeller.Adjustable pitch propeller passes through hub
Interior pitch-changing mechanism drives blade to be rotated around propeller shank axis, changes the angle of pitch and airscrew pitch, so as to change propeller
Thrust size, changes speed of a ship or plane requirement to adapt to ship, improves Ship Maneuverability.Adjustable pitch propeller is by changing propeller
Pitch provides most rational efficient routine under various rotating speeds, saves fuel, improves the economic performance of ship.
If blade rake angle continuously adjustabe in the range of some of propeller, the propeller is on oar axial plane
Diameter projected（Or referred to as effective diameter）Can with consecutive variations, propeller disc area consecutive variations, when other conditions are identical,
The airscrew thrust also consecutive variations, realize the effect for improving Ship Maneuverability, improving ship economic performance.
The content of the invention
Change blade rake angle to change propeller effective diameter it is an object of the invention to provide one kind, realize propeller
Thrust consecutive variations, and using the marine propeller of double duct guiding current raising propeller efficiency.The embodiment party of the present invention
Case is as follows：
Of the invention is characterized in always that double duct reducing marine propeller includes blade, propeller hub, O-ring seals, gland one, gland
2nd, ship axle, pull bar, outer catheter, conduit gusset, inner catheter.Ship axle is air-cored axis, and pull bar is in ship axle inner chamber, and propeller hub is close
One end of ship is propeller hub front end, and the one end of propeller hub away from ship is propeller hub rear end, and propeller hub rear end radial outside is evenly equipped with some
Individual blade, the contact surface between propeller shank and propeller hub is sphere, and propeller shank has partial gear, and pull bar is located in propeller hub
One end have several racks, hydraulic variable diameter piston in ship power cabin drives pull bar to be moved along the axial direction of ship axle
Dynamic, each rack and a partial gear cooperate, and drive blade to be rotated around blade rake axis, change blade and indulge
Airscrew thrust consecutive variations are realized so as to change propeller effective diameter in oblique angle.The radial outside of the propeller has outer lead
Pipe and inner catheter.Ship axle drives blade rotation generation main thrust current to be flowed through from inner catheter radially inner side, including main thrust current
Rear end of conduit is accelerated, and makes the current static pressure reduction of outer catheter rear end, and induction outer catheter front end sucks more current, led outside
The current static pressure reduction of pipe radially inner side, the current static pressure of outer catheter radial outside is acted on outer catheter, is produced additional
Thrust.
Propeller hub is in the cylindrical shape that one end is closed, and propeller hub front end inner radial surface has internal spline one, and propeller hub front end surface is uniform
There are several screwed holes two, the inner surface of propeller hub rear end end has locating shaft, and the axis of locating shaft is overlapped with the axis of propeller hub.Oar
Hub rear end radial outside is evenly equipped with several ball face sealing grooves, and the guide groove of a rectangle is arranged at the bottom of each ball face sealing groove
Communicated with propeller hub inner chamber, the inner surface at each ball face sealing groove notch has an annular seal groove, each ball face sealing
Radial outside is evenly equipped with several screwed holes one at groove notch.
Propeller shank has paddle shaft, and blade shaft section is rounded, and blade axial end has ball sealer, and sealing ball surface has endless
All gear, paddle shaft and partial gear are located at sealing two opposite directions of ball surface respectively, the center of circle of partial gear with it is close
The centre of sphere of blocking is overlapped, and blade rake axis passes through the centre of sphere of ball sealer, also, the axis phase of blade rake axis and paddle shaft
It is mutually vertical.Stiffener plate is welded between the paddle shaft and sealing ball surface in blade blade back direction.The thickness of partial gear with
The guiding well width of propeller hub is equal.The ball sealer profile of blade is meshed with the ball face sealing channel profiles of propeller hub.
Ship axle is cylindrical, and one end that ship axle couples with propeller hub is ship shaft rear end, and ship shaft rear end has ship shaft flange, ship method of principal axes
Blue end face has external splines one, and ship shaft flange radial outside is evenly equipped with several bolts hole two.
Pull bar is in cylinder, and one end that pull bar is located in propeller hub is push-and-pull rod rear end, push-and-pull rod rear end radial outside
Surface is evenly equipped with several racks, has steam vent, push-and-pull rod rear end end face to row close to the pull bar radial outside surface of rack
There is axis hole between stomata, steam vent is interconnected with axis hole.The rack quantity of pull bar and the blade quantity phase of the propeller
Deng.
Gland one is identical with the structure of gland two.Gland one is in half of annular, and the lower surface of gland one is sphere, the lower end of gland one
Facial contour is meshed with the ball sealer profile of blade.Gland several uniform bolts hole one between two end faces about one.Gland
Two in half of annular, and the lower surface of gland two is sphere, and the lower end facial contour of gland two is meshed with the ball sealer profile of blade.Gland
Several uniform bolts hole one between about two two end faces.
Outer catheter, conduit gusset, inner catheter composition double duct part.Several are welded between outer catheter and inner catheter to lead
Pipe gusset.Outer catheter flare.Inner catheter flare, inner catheter center section is conduit sphere section.Conduit sphere section axle
The track for surrounding blade tip when blade rake axis rotates to profile and blade is meshed.Outer catheter and inner catheter diameter of section are big
One end welds together, referred to as catheter proximal end, and the other end is referred to as rear end of conduit.Double duct part is fixed on hull, is led
Pipe front end is close to ship, and rear end of conduit is away from ship.
The propeller is in assembling, in the annular seal groove for O-ring seals being arranged on propeller hub, the ball sealer of blade
In the ball face sealing groove of propeller hub, and the partial gear of blade is set to be arranged in the guide groove of propeller hub, gland one
The radial outside surface at the ball face sealing groove notch of propeller hub is arranged on gland two, bolt is each passed through gland one and gland
Two bolt hole one is fixed in the screwed hole one of propeller hub.Pull bar is arranged in propeller hub, the axis hole of pull bar is arranged on
On the locating shaft of propeller hub, and make each rack of pull bar engage with a partial gear of blade to be installed together.
The external splines one of ship axle is arranged in the internal spline one of propeller hub, and the ship shaft flange end face of ship axle is arranged on the oar of propeller hub
In hub front end surface, the bolt hole two that bolt is each passed through ship axle is fixed in the screwed hole two of propeller hub.
Operationally, ship axle drives blade to be rotated along propeller direction of rotation to the propeller, positioned at ship power cabin
Axial movement of the interior hydraulic variable diameter piston driving pull bar along ship axle, each rack of pull bar and an incomplete tooth
Wheel cooperates, and drives blade to be rotated around blade rake axis, changes blade rake angle, makes the effective diameter of the propeller
Change with propeller disc area, so as to change the size of airscrew thrust, realize airscrew thrust consecutive variations.The propeller
Rake angle it is larger when, the wake flow of propeller is more concentrated, flow action blade surface path length increase, action time prolongs
Long, the efficiency of the propeller is improved.The propeller produces additional thrust using double duct guiding current, improves spiral
Oar efficiency.Mutually nibble the track that conduit sphere section axial profile and the blade of inner catheter surround blade tip when blade rake axis rotates
Close, make the propeller operationally, smaller spacing is kept between blade blade tip and inner catheter inner radial surface, improve propeller
Efficiency.
The propeller is become using diameter changing mechanism in rack-and-pinion hub, partial gear with rack by being in rolling contact transmission
Diameter changing mechanism is not allowed easy to wear in footpath torque, the rack-and-pinion hub.Sealing between propeller shank and propeller hub relies primarily on blade
Ball sealer and propeller hub ball face sealing groove between ball face sealing, O-ring seals are auxiliary seal, and ball face sealing is closeer than plane
Sealing property is good.
Brief description of the drawings
Figure of description is the structure chart and schematic diagram of double duct reducing marine propeller.Wherein Fig. 1 is to hide double duct
The axonometric drawing of the propeller of part, propeller effective diameter shown in figure is maximum.Fig. 2 is the institute for hiding double duct part
The axonometric drawing of propeller is stated, propeller effective diameter shown in figure is minimum.Fig. 3 is the propeller for hiding double duct part
Isometric cutaway view, propeller effective diameter shown in figure is maximum.Fig. 4 is the axle for the propeller for hiding double duct part
Sectional view is surveyed, propeller effective diameter shown in figure is minimum.Fig. 5 is the axonometric drawing of propeller hub.Fig. 6 is that the axle of propeller hub surveys section view
Figure.Fig. 7 is the axonometric drawing of blade.Fig. 8 is the axonometric drawing of ship axle.Fig. 9 is the axonometric drawing of pull bar.Figure 10 is gland one or gland
Two axonometric drawing.Figure 11 is the isometric cutaway view of double duct part.Figure 12 is to show in the schematic diagram of the propeller, figure to promote mainly
Power water (flow) direction and augmented thrust water (flow) direction.Figure 13 is the isometric cutaway view of the propeller, and propeller shown in figure has
Imitate diameter maximum.Figure 14 is the isometric cutaway view of the propeller, and propeller effective diameter shown in figure is minimum.Specification is attached
The local axial length of ship axle, pull bar is only shown in figure.
Be labeled with figure blade 1, paddle shaft 2, ball sealer 3, locating shaft 4, propeller hub 5, partial gear 6, O-ring seals 7,
Gland 1, gland 29, ship axle 10, pull bar 11, steam vent 12, rack 13, blade rake axis 14, axis hole 15, bolt hole
One 16, propeller hub rear end 17, guide groove 18, screwed hole 1, ball face sealing groove 20, annular seal groove 21, screwed hole 2 22, interior flower
Key 1, propeller hub front end 24, ship shaft flange 25, bolt hole 2 26, external splines 1, stiffener plate 28, conduit gusset 29, interior lead
Pipe 30, conduit sphere section 31, augmented thrust water (flow) direction 32, main thrust water (flow) direction 33, outer catheter 34.
Embodiment
The present invention is further discussed below below in conjunction with the accompanying drawings.
Reference picture 14, Fig. 1 are to Fig. 4, and double duct reducing marine propeller includes blade 1, propeller hub 5, O-ring seals 7, gland
One 8, gland 29, ship axle 10, pull bar 11, outer catheter 34, conduit gusset 29, inner catheter 30.Chuan Zhou10Shi air-cored axis, push-and-pull
Bar 11 is in the inner chamber of ship axle 10, and propeller hub 5 is propeller hub front end 24 close to one end of ship, after the one end of propeller hub 5 away from ship is propeller hub
End 17, the radial outside of propeller hub rear end 17 is evenly equipped with several blades 1, and the contact surface between the root of blade 1 and propeller hub 5 is sphere,
There is partial gear 6 root of blade 1, and there are several racks 13 one end that pull bar 11 is located in propeller hub 5, positioned at ship power cabin
Axial movement of the interior hydraulic variable diameter piston driving pull bar 11 along ship axle 10, each rack 13 and a partial gear
6 cooperate, and drive blade 1 to be rotated around blade rake axis 14, change blade rake angle effectively straight so as to change propeller
Footpath, realizes airscrew thrust consecutive variations.The radial outside of the propeller has outer catheter 34 and inner catheter 30.Ship axle 10 drives
The rotation of blade 1 produces main thrust current and flowed through from the radially inner side of inner catheter 30, and main thrust current are added in the rear end of inner catheter 30
Speed, makes the rear end current static pressure reduction of outer catheter 34, and induction outer catheter 34 front end sucks more current, and the footpath of outer catheter 34 is inside
The current static pressure reduction of side, the current static pressure of the radial outside of outer catheter 34 is acted on outer catheter 34, produces additional thrust.
Reference picture 14, Fig. 1 are in the cylindrical shape that one end is closed to Figure 11, propeller hub 5, and the inner radial surface of propeller hub front end 24 has interior flower
Key 1, the end face of propeller hub front end 24 is evenly equipped with several screwed holes 2 22, and the inner surface of the end of propeller hub rear end 17 has locating shaft 4,
The axis of locating shaft 4 is overlapped with the axis of propeller hub 5.The radial outside of propeller hub rear end 17 is evenly equipped with several ball face sealing grooves 20, often
The guide groove 18 that one rectangle is arranged at the bottom of one ball face sealing groove 20 is communicated with the inner chamber of propeller hub 5, each ball face sealing groove 20
Inner surface at notch has an annular seal groove 21, and radial outside is evenly equipped with several at each notch of ball face sealing groove 20
Screwed hole 1.
There is paddle shaft 2 root of blade 1, and the section of paddle shaft 2 is rounded, and the end face of paddle shaft 2 has ball sealer 3, the surface of ball sealer 3
There is partial gear 6, paddle shaft 2 is located at two, 3 surface of ball sealer opposite direction, partial gear 6 respectively with partial gear 6
The center of circle overlapped with the centre of sphere of ball sealer 3, blade rake axis 14 passes through the centre of sphere of ball sealer 3, also, blade rake axis 14
It is mutually perpendicular to the axis of paddle shaft 2.Stiffener plate is welded between the paddle shaft 2 in the blade back direction of blade 1 and the surface of ball sealer 3
28.The thickness of partial gear 6 is equal with the width of guide groove 18 of propeller hub 5.The profile of ball sealer 3 of blade 1 and the sphere of propeller hub 5
The profile of seal groove 20 is meshed.
Ship axle 10 is cylindrical, and ship axle 10 is ship shaft rear end with one end that propeller hub 5 couples, and ship shaft rear end has ship shaft flange
25, the end face of ship shaft flange 25 has external splines 1, and the radial outside of ship shaft flange 25 is evenly equipped with several bolts hole 2 26.
Pull bar 11 is in cylinder, and one end that pull bar 11 is located in propeller hub 5 is push-and-pull rod rear end, and push-and-pull rod rear end is radially
Outer surface is evenly equipped with several racks 13, and there are steam vent 12, pull bar in the radial outside surface of pull bar 11 close to rack 13
Rear end end face is to there is axis hole 15 between steam vent 12, steam vent 12 is interconnected with axis hole 15.The quantity of rack 13 of pull bar 11
It is equal with the quantity of blade 1 of the propeller.
Gland 1 is identical with the structure of gland 29.Gland 1 is in half of annular, and the lower surface of gland 1 is sphere, gland one
8 lower end facial contours are meshed with the profile of ball sealer 3 of blade 1.Gland several uniform bolts hole between two end faces about one 8
One 16.Gland 29 is in half of annular, and the lower surface of gland 29 is sphere, the ball sealer 3 of the lower end facial contour of gland 29 and blade 1
Profile is meshed.Gland several uniform bolts hole 1 between two end faces about 29.
Outer catheter 34, conduit gusset 29, the composition double duct part of inner catheter 30.Welded between outer catheter 34 and inner catheter 30
There are several conduit gussets 29.The flare of outer catheter 34.The flare of inner catheter 30, the center section of inner catheter 30 is conduit ball
Face section 31.The track that conduit sphere 31 axial profiles of section surround blade tip when blade rake axis 14 rotates with blade 1 is meshed.Outside
Conduit 34 and the big one end of the diameter of section of inner catheter 30 weld together, referred to as catheter proximal end, and the other end is referred to as after conduit
End.Double duct part is fixed on hull, and catheter proximal end is close to ship, and rear end of conduit is away from ship.
The propeller is in assembling, in the annular seal groove 21 for O-ring seals 7 being arranged on propeller hub 5, blade 1
Ball sealer 3 is arranged in the ball face sealing groove 20 of propeller hub 5, and the partial gear 6 of blade 1 is arranged on the guiding of propeller hub 5
In groove 18, gland 1 and gland 29 are arranged on the radial outside surface at the notch of ball face sealing groove 20 of propeller hub 5, bolt
The bolt hole 1 for being each passed through gland 1 and gland 29 is fixed in the screwed hole 1 of propeller hub 5.Pull bar 11 is installed
In propeller hub 5, the axis hole 15 of pull bar 11 is set to be arranged on the locating shaft 4 of propeller hub 5, and make each rack of pull bar 11
13 engage with a partial gear 6 of blade 1 and are installed together.The external splines 1 of ship axle 10 is arranged in propeller hub 5
In spline 1, and the end face of ship shaft flange 25 of ship axle 10 is set to be arranged on the end face of propeller hub front end 24 of propeller hub 5, bolt point
Not Chuan Guo the bolt hole 2 26 of ship axle 10 be fixed in the screwed hole 2 22 of propeller hub 5.
Reference picture 3 is to Fig. 4, Figure 12 to Figure 14, and operationally, ship axle 10 drives blade 1 along propeller to the propeller
Direction of rotation rotates, axial movement of the hydraulic variable diameter piston driving pull bar 11 along ship axle 10 in ship power cabin,
Each rack 13 of pull bar 11 cooperates with a partial gear 6, drives blade 1 to be revolved around blade rake axis 14
Turn, change blade rake angle, change the effective diameter and propeller disc area of the propeller, so as to change airscrew thrust
Size, realize airscrew thrust consecutive variations.When the rake angle of the propeller is larger, the wake flow of propeller is more concentrated, water
Stream acts on the path length increase on the surface of blade 1, extended durations of action, and the efficiency of the propeller is improved.The spiral shell
Revolve oar and produce additional thrust using double duct guiding current, improve propeller efficiency.The conduit sphere section 31 of inner catheter 30 is axially
The track that profile surrounds blade tip when blade rake axis 14 rotates with blade 1 is meshed, and makes the propeller operationally, blade
Smaller spacing is kept between 1 blade tip and the inner radial surface of inner catheter 30, propeller efficiency is improved.
The propeller is using diameter changing mechanism in rack-and-pinion hub, and partial gear 6 is with rack 13 by being in rolling contact biography
Diameter changing mechanism is not allowed easy to wear in the torque of alternation footpath, the rack-and-pinion hub.Sealing between the root of blade 1 and propeller hub 5 it is main according to
Ball sealer 3 by blade 1 and the ball face sealing between the ball face sealing groove 20 of propeller hub 5, O-ring seals 7 are auxiliary seal, sphere
Sealing is better than plane sealing performance.
Claims (1)
1. a kind of double duct reducing marine propeller, it is characterised in that it is close that the propeller includes blade (1), propeller hub (5), O shapes
Seal (7), gland one (8), gland two (9), ship axle (10), pull bar (11), outer catheter (34), conduit gusset (29), interior lead
Manage (30)；Ship axle (10) is air-cored axis, and pull bar (11) is propeller hub close to one end of ship in ship axle (10) inner chamber, propeller hub (5)
Front end (24), the one end of propeller hub (5) away from ship is propeller hub rear end (17), and propeller hub rear end (17) radial outside is evenly equipped with several
Blade (1), the contact surface between blade (1) root and propeller hub (5) is sphere, and there is partial gear (6) blade (1) root, pushed away
There are several racks (13) one end that pull bar (11) is located in propeller hub (5), and the hydraulic variable diameter piston in ship power cabin drives
Dynamic axial movement of the pull bar (11) along ship axle (10), each rack (13) cooperates with a partial gear (6),
Drive blade (1) to be rotated around blade rake axis (14), change blade rake angle to change propeller effective diameter, realize
Airscrew thrust consecutive variations；The radial outside of the propeller has outer catheter (34) and inner catheter (30)；Ship axle (10) drives
Blade (1) rotation produces main thrust current and flowed through from inner catheter (30) radially inner side, and main thrust current are in inner catheter (30) rear end
Accelerated, make the current static pressure reduction of outer catheter (34) rear end, induction outer catheter (34) front end sucks more current, led outside
The current static pressure reduction of (34) radially inner side is managed, the current static pressure of outer catheter (34) radial outside acts on outer catheter (34)
On, produce additional thrust；
Propeller hub (5) is in the cylindrical shape that one end is closed, and propeller hub front end (24) inner radial surface has internal spline one (23), propeller hub front end
(24) end face is evenly equipped with several screwed holes two (22), and the inner surface of propeller hub rear end (17) end has locating shaft (4), locating shaft
(4) axis is overlapped with the axis of propeller hub (5)；Propeller hub rear end (17) radial outside is evenly equipped with several ball face sealing grooves (20),
The guide groove (18) that one rectangle is arranged at the bottom of each ball face sealing groove (20) is communicated with propeller hub (5) inner chamber, each sphere
Inner surface at seal groove (20) notch has an annular seal groove (21), and footpath is outside at each ball face sealing groove (20) notch
Side is evenly equipped with several screwed holes one (19)；
There is paddle shaft (2) blade (1) root, and paddle shaft (2) section is rounded, and paddle shaft (2) end face has ball sealer (3), sealing
There is partial gear (6) on ball (3) surface, and paddle shaft (2) is located at ball sealer (3) two, surface phase respectively with partial gear (6)
Opposite direction, the center of circle of partial gear (6) is overlapped with the centre of sphere of ball sealer (3), and blade rake axis (14) passes through ball sealer (3)
The centre of sphere, also, the axis of blade rake axis (14) and paddle shaft (2) is mutually perpendicular to；The paddle shaft in blade (1) blade back direction
(2) it is welded with stiffener plate (28) between ball sealer (3) surface；The thickness of partial gear (6) and the guide groove of propeller hub (5)
(18) width is equal；Ball sealer (3) profile of blade (1) is meshed with ball face sealing groove (20) profile of propeller hub (5)；
Ship axle (10) is cylindrical, and ship axle (10) is ship shaft rear end with one end that propeller hub (5) couples, and ship shaft rear end has ship shaft flange
(25), ship shaft flange (25) end face has external splines one (27), and ship shaft flange (25) radial outside is evenly equipped with several bolts hole two
(26)；
Pull bar (11) is in cylinder, and one end that pull bar (11) is located in propeller hub (5) is push-and-pull rod rear end, push-and-pull rod rear end footpath
Outside side surface is evenly equipped with several racks (13), and there is steam vent on pull bar (11) radial outside surface close to rack (13)
(12), push-and-pull rod rear end end face is to there is axis hole (15) between steam vent (12), and steam vent (12) is interconnected with axis hole (15)；Push away
Rack (13) quantity of pull bar (11) is equal with blade (1) quantity of the propeller；
Gland one (8) is identical with gland two (9) structure；Gland one (8) is in half of annular, and gland one (8) lower surface is sphere, pressure
Lid one (8) lower end facial contour is meshed with ball sealer (3) profile of blade (1)；It is uniform between two end faces above and below gland one (8)
Several bolts hole one (16)；Gland two (9) is in half of annular, and gland two (9) lower surface is sphere, gland two (9) lower surface
Profile is meshed with ball sealer (3) profile of blade (1)；Several uniform bolts hole between two end faces above and below gland two (9)
One (16)；
Outer catheter (34), conduit gusset (29), inner catheter (30) composition double duct part；Outer catheter (34) and inner catheter (30) it
Between be welded with several conduit gussets (29)；Outer catheter (34) flare；In inner catheter (30) flare, inner catheter (30)
Between be partly conduit sphere section (31)；Conduit sphere section (31) axial profile is revolved with blade (1) around blade rake axis (14)
The track of blade tip is meshed when turning；Outer catheter (34) and the big one end of inner catheter (30) diameter of section weld together, and are referred to as
Catheter proximal end, the other end is referred to as rear end of conduit；Double duct part is fixed on hull, and catheter proximal end is after ship, conduit
End is away from ship；
The propeller is in assembling, in the annular seal groove (21) for O-ring seals (7) being arranged on propeller hub (5), blade
(1) ball sealer (3) is arranged in the ball face sealing groove (20) of propeller hub (5), and pacifies the partial gear (6) of blade (1)
In the guide groove (18) of propeller hub (5), gland one (8) and gland two (9) are arranged on the ball face sealing groove (20) of propeller hub (5)
Radial outside surface at notch, the bolt hole one (16) that bolt is each passed through gland one (8) and gland two (9) is fixed on oar
In the screwed hole one (19) of hub (5)；Pull bar (11) is arranged in propeller hub (5), the axis hole (15) of pull bar (11) is installed
On the locating shaft (4) of propeller hub (5), and make one of each rack (13) of pull bar (11) and blade (1) not exclusively
Gear (6) engagement is installed together；The external splines one (27) of ship axle (10) is arranged in the internal spline one (23) of propeller hub (5),
And ship shaft flange (25) end face of ship axle (10) is arranged on propeller hub front end (24) end face of propeller hub (5), bolt is distinguished
Bolt hole two (26) through ship axle (10) is fixed in the screwed hole two (22) of propeller hub (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710529742.7A CN107215445B (en) | 2017-07-02 | 2017-07-02 | Double duct reducing marine propeller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710529742.7A CN107215445B (en) | 2017-07-02 | 2017-07-02 | Double duct reducing marine propeller |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107215445A true CN107215445A (en) | 2017-09-29 |
| CN107215445B CN107215445B (en) | 2018-09-11 |
Family
ID=59952066
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710529742.7A Active CN107215445B (en) | 2017-07-02 | 2017-07-02 | Double duct reducing marine propeller |
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| Country | Link |
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| CN (1) | CN107215445B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107867382A (en) * | 2017-10-16 | 2018-04-03 | 重庆交通大学 | A kind of propeller set |
| CN111169615A (en) * | 2020-01-09 | 2020-05-19 | 北京玻钢院复合材料有限公司 | Composite material conduit of propeller and preparation method thereof |
| CN113492957A (en) * | 2021-06-15 | 2021-10-12 | 深圳辛未科技有限公司 | Propelling device for underwater robot |
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| US4306839A (en) * | 1979-08-23 | 1981-12-22 | The United States Of America As Represented By The Secretary Of The Navy | Semi-tandem marine propeller |
| US20100048069A1 (en) * | 2006-09-15 | 2010-02-25 | Yellowfin Limited | Marine propulsion and constructional details thereof |
| CN102935890A (en) * | 2012-09-21 | 2013-02-20 | 中国空间技术研究院 | Variable diameter screw propeller |
| CN203410618U (en) * | 2013-08-08 | 2014-01-29 | 浙江海洋学院 | Controllable pitch propeller for ship |
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| US4306839A (en) * | 1979-08-23 | 1981-12-22 | The United States Of America As Represented By The Secretary Of The Navy | Semi-tandem marine propeller |
| DE2934974A1 (en) * | 1979-08-30 | 1981-03-12 | Marinetechnik Planungsgesellschaft Mbh, 2000 Hamburg | Elevated hot gas effluent outlet duct for submarine - has infrared emission screening equipment which is casing forming effluent operated ring ejector with duct end |
| US20100048069A1 (en) * | 2006-09-15 | 2010-02-25 | Yellowfin Limited | Marine propulsion and constructional details thereof |
| CN102935890A (en) * | 2012-09-21 | 2013-02-20 | 中国空间技术研究院 | Variable diameter screw propeller |
| CN203410618U (en) * | 2013-08-08 | 2014-01-29 | 浙江海洋学院 | Controllable pitch propeller for ship |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107867382A (en) * | 2017-10-16 | 2018-04-03 | 重庆交通大学 | A kind of propeller set |
| CN111169615A (en) * | 2020-01-09 | 2020-05-19 | 北京玻钢院复合材料有限公司 | Composite material conduit of propeller and preparation method thereof |
| CN111169615B (en) * | 2020-01-09 | 2021-02-02 | 北京玻钢院复合材料有限公司 | Composite material conduit of propeller and preparation method thereof |
| CN113492957A (en) * | 2021-06-15 | 2021-10-12 | 深圳辛未科技有限公司 | Propelling device for underwater robot |
| CN113492957B (en) * | 2021-06-15 | 2022-10-21 | 郑州阜豫科技有限公司 | Propelling device for underwater robot |
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| Publication number | Publication date |
|---|---|
| CN107215445B (en) | 2018-09-11 |
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Effective date of registration: 20230814 Address after: No. 66, Guihua Road, Baihuashan Industrial Zone, Wuyi County, Jinhua City, Zhejiang Province, 321000 Patentee after: Wuyi Henghai Tools Co.,Ltd. Address before: South of the middle section of Qibei Road, Leling City, Dezhou City, Shandong Province, 253600 Patentee before: LELING HY ENERGY SAVING DEVICE CO.,LTD. |