CN105799899A - Transmission connection device of tubular reversing propellers - Google Patents

Transmission connection device of tubular reversing propellers Download PDF

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Publication number
CN105799899A
CN105799899A CN201610143923.1A CN201610143923A CN105799899A CN 105799899 A CN105799899 A CN 105799899A CN 201610143923 A CN201610143923 A CN 201610143923A CN 105799899 A CN105799899 A CN 105799899A
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CN
China
Prior art keywords
oar
hole
propeller
female connector
transmission
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.)
Granted
Application number
CN201610143923.1A
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Chinese (zh)
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CN105799899B (en
Inventor
吴炳发
吴丹辉
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Harbin Electric Group Ocean Intelligent Equipment Co ltd
Original Assignee
Ningbo Yinzhou Fahui Machinery Technology Co Ltd
Priority date (The priority date 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 date listed.)
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Application filed by Ningbo Yinzhou Fahui Machinery Technology Co Ltd filed Critical Ningbo Yinzhou Fahui Machinery Technology Co Ltd
Priority to CN201610143923.1A priority Critical patent/CN105799899B/en
Publication of CN105799899A publication Critical patent/CN105799899A/en
Application granted granted Critical
Publication of CN105799899B publication Critical patent/CN105799899B/en
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B63SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63HMARINE PROPULSION OR STEERING
    • B63H11/00Marine propulsion by water jets
    • B63H11/02Marine propulsion by water jets the propulsive medium being ambient water
    • B63H11/04Marine propulsion by water jets the propulsive medium being ambient water by means of pumps
    • B63H11/08Marine propulsion by water jets the propulsive medium being ambient water by means of pumps of rotary type
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B63SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63HMARINE PROPULSION OR STEERING
    • B63H11/00Marine propulsion by water jets
    • B63H11/02Marine propulsion by water jets the propulsive medium being ambient water
    • B63H11/04Marine propulsion by water jets the propulsive medium being ambient water by means of pumps
    • B63H11/08Marine propulsion by water jets the propulsive medium being ambient water by means of pumps of rotary type
    • B63H2011/081Marine propulsion by water jets the propulsive medium being ambient water by means of pumps of rotary type with axial flow, i.e. the axis of rotation being parallel to the flow direction
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B63SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63HMARINE PROPULSION OR STEERING
    • B63H11/00Marine propulsion by water jets
    • B63H11/02Marine propulsion by water jets the propulsive medium being ambient water
    • B63H11/04Marine propulsion by water jets the propulsive medium being ambient water by means of pumps
    • B63H11/08Marine propulsion by water jets the propulsive medium being ambient water by means of pumps of rotary type
    • B63H2011/084Marine propulsion by water jets the propulsive medium being ambient water by means of pumps of rotary type with two or more pump stages
    • B63H2011/085Marine propulsion by water jets the propulsive medium being ambient water by means of pumps of rotary type with two or more pump stages having counter-rotating impellers

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Ocean & Marine Engineering (AREA)
  • Motor Power Transmission Devices (AREA)

Abstract

The invention discloses a transmission connection device of tubular reversing propellers. The device comprises a ship body, water channels and the tubular reversing propellers. The left side and the right side of the ship body are provided with the water channels respectively. The tubular reversing propellers are arranged in the water channels. A sliding groove on one side of the ship body is provided with a butt joint hole. A movable butt joint sleeve is arranged in the butt joint hole. A plurality of sealing rings A are arranged between the movable butt joint sleeve and the butt joint hole. A fixing bolt A is arranged in the movable butt joint sleeve. A fixing bolt B is arranged on the outer ring of the movable butt joint sleeve. A connection hole is formed in the movable butt joint sleeve. A lining is arranged in the connection hole. The outer end of the movable butt joint sleeve is provided with a sealing outer cover and further provided with a temporary sealing cover B. The tubular reversing propellers can be rapidly, easily and safely assembled and disassembled under water, loss of energy power transmission is effectively reduced, streaming loss of a paddle tip is limited, propeller rear wake flow rotation loss is reduced, large power is absorbed, vibration is reduced and vacuoles are avoided.

Description

A kind of tubular type angle of rake transmission joint of anti-oar
Technical field
The present invention relates to a kind of marine propeller, especially relate to the transmission joint between the electromotor in the anti-oar propeller of a kind of tubular type and hull.
Background technology
In, Options of Ship Navigation is afraid of at sea most is that the axle system of boats and ships breaks down and keeps in repair, because breakdown in the motor can keep in repair in hull, but in, the axle system fault of large ship must keep in repair in dry dock;The propeller of tradition boats and ships is arranged on the rear end of boats and ships, although the position of boats and ships rear end is big, the propeller that diameter is bigger can be set, but the current that propeller promotes are received certain impact and its axle system head by the stop of above hull, and the torsion of such axle system can increase, the design of shaft and manufacture requirements also can improve, the rotating speed of its propeller can not be too fast, it is easy to produces cavity, the also unusual inconvenience when the installation of axle system and propeller, dismounting perform to safeguard;
The Chinese patent that application number is CN201310338486.5 discloses a kind of marine propeller and this angle of rake method to set up and method for dismounting;The marine propeller of embodiments of the invention includes: rear screw shaft, fixes on the rotary shaft;Front propeller, is pivotably supported by the rotating shaft in rear screw shaft front;Reverse rotary apparatus, make the rotation of rotating shaft reverse, and be transferred to front propeller, and be arranged in the installation space of hull afterbody;Propeller connector, connects and reverses rotary apparatus and front propeller, and transmit revolving force;Thrust support device, is arranged between reverse rotary apparatus and propeller connector, supports the thrust of front propeller;His inside and outside coaxial design being designed as traditional hull rear, and structure is complicated, is difficult to installation, disassembling section under water;
The Chinese patent that application number is CN87103246 discloses a kind of propeller device for vessel;Propeller system 10 has two to be arranged on common axis of rotation to make the propeller 13,14 that mutual rightabout rotates.Power passes through a vertical axis 12 and an angle 11, is delivered to the propeller shaft of basic horizontal.At least one propeller 13 or 14 of propeller system 10, at least provided with a toroidal helical oar conduit 15, is arranged in this propeller nozzle and rotates by propeller system 10.In a Favourable implementations of the present invention, the first propeller 13, namely front propeller is arranged in propeller nozzle 15B and rotates, and the second propeller 14 is naked propeller;This coaxial anti-oar propulsive unit is traditional rear-mounted extension oar machine, may be only available for small boat, it is impossible to in, large ship.
I am through long-term thinking and looks through a great amount of information and retrieves, finally each existing at present problem is solved, the present invention under water can be quick, simple and safe when axle system and propeller break down dismantled, quickly installed under water after winching on ship maintenance or changing and continue to navigate by water;Effectively lower the loss of the power transmission of electromotor, improve the propulsive efficiency of propeller, restriction blade point stream loss, reduce wake flow spin loss after propeller, make energy loss reduce, absorption relatively high power, vibration damping and avoid cavity.
Summary of the invention
The technical problem to be solved is to provide the transmission joint between the electromotor in the anti-oar propeller of a kind of tubular type and hull.
nullA kind of tubular type angle of rake transmission joint of anti-oar,Including hull、Waterway and the anti-oar propeller of tubular type,It is characterized in that the left and right sides of described hull is each provided with waterway,The both sides of described waterway are respectively arranged with chute,Described chute is provided with the anti-oar propeller of described tubular type,The described hull of described side chute is provided with butt hole,It is movable to female connector to be provided with in described butt hole,Described activity is to being provided with multiple sealing ring A between female connector and described butt hole,The front end of female connector is provided with multiple sealing ring B by described activity,Described activity is to being provided with fixing bolt A in female connector,The outer ring of female connector is provided with fixing bolt B by described activity,It is connected between described fixing bolt B and described hull,Described activity is to being provided with connecting hole in female connector,Described connecting hole is provided with lining,Described lining is provided with axis hole,The outer end of described lining is provided with bearing groove B,Described bearing groove B is provided with radial thrust bearing,The outer end of female connector is provided with sealing external cover by described activity,Described sealing external cover is provided with transmission axis hole,Described transmission axis hole is provided with sealing ring,The outer end of female connector is additionally provided with temporary sealing lid B by described activity,The surrounding of described temporary sealing lid B is provided with multiple screw notch at the position place of overlapping with described fixing bolt A and described fixing bolt B.
nullThe anti-oar propeller of described tubular type includes draw runner、Connecting cross beam and transmission bloster,It is characterized in that the angle of rake left and right sides of the anti-oar of described tubular type is each provided with described draw runner,Described activity is connected by described fixing bolt A between female connector and described draw runner,Described connecting cross beam respectively it is connected between the two ends of draw runner described in both sides,Described transmission bloster it is provided with between the middle-end of draw runner described in both sides,Described transmission bloster and the described draw runner of side are provided with spindle hole,The position of the position of described spindle hole and described connecting hole is the same center of circle,Described spindle hole and described connecting hole are movably set with transmission main shaft,The outer end of described transmission main shaft is provided with bearing inside groove,The position of described bearing inside groove is consistent with the position of described bearing groove B,The inner of described transmission main shaft is also equipped with radial thrust bearing,Described spindle hole the inner is provided with bearing groove A,Inner described radial thrust bearing matches with described bearing groove A,The inner of described transmission main shaft is provided with 45 degree of taper travelling gears,It is each provided with oar axle between connecting cross beam described in described transmission bloster and two ends,The inner of oar axle described in two ends is each provided with described 45 degree taper travelling gear,Three described 45 degree taper travelling gear kissings merge and connect,Oar axle described in two ends respectively arranges propeller,Two described propellers are contrary,The outer end of described spindle hole is provided with temporary sealing groove,The diameter of described temporary sealing groove is less than or equal to the diameter of described connecting hole,Described temporary sealing groove is provided with temporary sealing lid A,Described temporary sealing lid A is provided with and facilitates screw,The described screw that facilitates is half bore,Described facilitating is movably set with convenient pole on screw.
Being each provided with electromotor on the position that the left and right sides in described hull is symmetrical with described tubular type anti-oar propeller, be provided with universal joint between described electromotor and described transmission main shaft outer end, one end of draw runner described in both sides is each provided with hole, multiple location.
The anti-oar propeller of tubular type can improve the propulsive efficiency of propeller, this is because the internal flow velocity of waterway is high, pressure is low, pressure differential inside and outside conduit defines additional thrust on waterway wall, gap between waterway and propeller blade is only small, what limit blade point streams loss, and waterway can reduce wake flow spin loss after propeller, makes energy loss reduce, absorb relatively high power, effective vibration damping and avoid cavity.
The design of anti-oar before and after tubular type anti-oar propeller;First oar is " precommpression " that the second oar provides current, and second level oar just has the jet density of bigger drainage amount, and its effect can reach 1 to 2 times of single-blade.
The anti-oar propeller of tubular type and chute-type design;Be conducive to anti-for tubular type oar propeller integral demounting or installation in water, it is simple to repair, safeguard.
The design of the anti-oar propulsive unit of tubular type of the left and right sides can make boats and ships have bigger thrust and motility, shortens the length of axle system, reduces the torsion of axle system, reduces the loss of engine power conveying.
The front and back oar axle of the anti-oar propulsive unit of tubular type and the main shaft design of intermediate transmission, simpler, much effective than traditional inside and outside coaxial design, traditional coaxial anti-oar is inside and outside coaxial design, so axle can not be excessively thick in it;Traditional coaxial anti-oar and the oar axle of boats and ships are all that electromotor and propeller are arranged on oar axle two ends, the length of oar axle its torsion more long is also more big, oar shaft design and production are proposed higher requirement by this, the power of the anti-oar propulsive unit of tubular type is transmitted as the output of intermediate input two ends, simple, practical.
The movement of boats and ships is to enter the one of water in a row to produce by propeller, and traditional propeller is arranged on the rear of hull, and current can be formed certain stop by such hull, have impact on the flow direction of current;And anti-for tubular type oar impeller design is solved problem above well by the present invention in the hull left and right sides, the current that the anti-oar propeller of tubular type is directly sucked in front are utilized to be sprayed, make tubular type anti-oar propeller that the utilization rate of engine power to be greatly improved, its speed faster, thrust bigger.
The movable setting to female connector solves transmission main shaft installation in hull and dismounting well, makes tubular type anti-oar propeller become as a whole modular appliance.
Temporary sealing lid A and temporary sealing lid B be arranged on the tubular type angle of rake dismounting of anti-oar, install time can temporary enclosed spindle hole and connecting hole, facilitate the setting of screw can make temporary sealing lid A dismounting, install time more convenient, accurate;The setting of sealing ring B can make activity more seal under fixing with fixing bolt A when female connector is docked with the spindle hole on draw runner, the setting of lining can conveniently arrange the bearing groove B of radial thrust bearing, can the position of accurate fixed conveyor main shaft, the setting of the surrounding flight of temporary sealing lid B can make temporary sealing lid B be fixed on movable to female connector outer end time also fixing bolt A and fixing bolt B can be operated, the diameter of temporary sealing groove less than or equal to the setting of connecting hole diameter can facilitate temporary sealing lid A dismounting, install time into and out of.
Accompanying drawing explanation
Fig. 1 is the stereochemical structure sectional view of the present invention;
Fig. 2 is the three-dimensional side view of the present invention;
Fig. 3 is the partial cross structure chart of the present invention;
Fig. 4 is the tubular type angle of rake installation of anti-oar and the chute sectional view of the present invention;
Fig. 5 is the anti-oar propeller sectional view of tubular type of the present invention;
Fig. 6 is the phantom of the present invention;
Fig. 7 is the partial cross exploded view of the present invention;
Fig. 8 is the activity of present invention sectional view when female connector is sealed;
Fig. 9 is the activity docking nested structure axonometric chart of the present invention.
Detailed description of the invention
Below in conjunction with accompanying drawing embodiment, the present invention is described in further detail.
As shown in Fig. 1,2,3,4,7,8,9;nullA kind of tubular type angle of rake transmission joint of anti-oar,Including hull 1、Waterway 5 and the anti-oar propeller 2 of tubular type,The left and right sides of hull 1 is each provided with waterway 5,The both sides of waterway 5 are respectively arranged with chute 6,Chute 6 is provided with the anti-oar propeller 2 of tubular type,The hull 1 of side chute 6 is provided with butt hole 20,It is movable to female connector 21 to be provided with in butt hole 20,Movable to being provided with multiple sealing ring A35 between female connector 21 and butt hole 20,The movable front end to female connector 21 is provided with multiple sealing ring B36,Movable to female connector 21 is provided with fixing bolt A38,The movable outer ring to female connector 21 is provided with fixing bolt B 39,Fix and be connected between bolt B 39 with hull 1,Movable to female connector 21 is provided with connecting hole 22,Connecting hole 22 is provided with lining 24,Lining 24 is provided with axis hole,The outer end of lining 24 is provided with bearing groove B29,Bearing groove B29 is provided with radial thrust bearing 18,The movable outer end to female connector 21 is provided with sealing external cover 26,Sealing external cover 26 is provided with transmission axis hole,Transmission axis hole is provided with sealing ring,The movable outer end to female connector 21 is additionally provided with temporary sealing lid B32,The surrounding of temporary sealing lid B32 is being provided with multiple screw notch with the position place of overlapping of fixing bolt A38 and fixing bolt B 39.
As shown in Fig. 3,4,5,6,7;nullThe anti-oar propeller 2 of tubular type includes draw runner 11、Connecting cross beam 12 and transmission bloster 13,The left and right sides of the anti-oar propeller 2 of tubular type is each provided with draw runner 11,Activity is connected by fixing bolt A38 between female connector 21 with draw runner 11,Connecting cross beam 12 respectively it is connected between the two ends of both sides draw runner 11,Transmission bloster 13 it is provided with between the middle-end of both sides draw runner 11,The draw runner 11 of transmission bloster 13 and side is provided with spindle hole 23,The position of the position of spindle hole 23 and connecting hole 22 is the same center of circle,Spindle hole 23 and connecting hole 22 are movably set with transmission main shaft 27,The outer end of transmission main shaft 27 is provided with bearing inside groove 30,The position of bearing inside groove 30 is consistent with the position of bearing groove B29,The inner of transmission main shaft 27 is also equipped with radial thrust bearing 18,Spindle hole 23 the inner is provided with bearing groove A25,Inner radial thrust bearing 18 matches with bearing groove A25,The inner of transmission main shaft 27 is provided with 45 degree of taper travelling gears 28,Oar axle 14 it is each provided with between transmission bloster 13 and two ends connecting cross beam 12,The inner of two ends oar axle 14 is each provided with 45 degree of taper travelling gears 28,Three 45 degree taper travelling gear 28 kissings merge and connect,The oar axle 14 at two ends respectively arranges propeller 15,The propeller 15 of two is contrary,The outer end of spindle hole 23 is provided with temporary sealing groove 16,The diameter of temporary sealing groove 16 is less than or equal to the diameter of connecting hole 23,Temporary sealing groove 16 is provided with temporary sealing lid A31,Temporary sealing lid A31 is provided with and facilitates screw 41,Facilitate screw 41 for half bore,Facilitate and screw 41 is movably set with convenient pole.
As shown in Fig. 1,3,4;Being each provided with electromotor 3 on the position that the left and right sides in hull 1 is symmetrical with tubular type anti-oar propeller 2, be provided with universal joint 4 between the outer end of electromotor 3 and transmission main shaft 27, one end of both sides draw runner 11 is each provided with multiple location 17.
Transmission main shaft 27 in anti-for tubular type oar propeller 2 being exited from spindle hole 23, then installs temporary sealing lid A31 in temporary sealing groove 16, tubular type anti-oar propeller 2 just becomes single entirety, can pass in and out by two draw runners 11 in the chute 6 of waterway 5;
nullActivity links together by fixing bolt B 39 between female connector 21 and hull 1,The front end of female connector 21 is adjusted to certain space (draw runner 11 not affect the anti-oar propeller 2 of tubular type passes in and out in chute 6 and is as the criterion) with chute 6 by activity,Now movable one end to female connector 21 in hull 1 is provided with temporary sealing lid B32(and prevents the entrance of water),After the smooth groove 6 of tubular type anti-oar propeller 2 enters, (chute 6 has the end,The anti-oar propeller 2 of tubular type can be positioned in the position of waterway 5,The position consistency of position Yu butt hole 20 to guarantee temporary sealing groove 16),With fixing bolt A38, female connector 21 and draw runner 6 are fixed by activity,Now sealing ring B36 serves sealing function,After fixing fixing bolt B 39 again, temporary sealing lid B32 is dismantled,Dismantle the inside temporary sealing lid A31 again and be drawn off,Convenient pole and facilitate hole 41 temporary sealing lid A31 dismounting take out or enter install time can play a role,The front end of transmission main shaft 27(now transmission main shaft 27 has been installed radial thrust bearing 18 and 45 degree of taper travelling gears 28) it is advanced to spindle hole 23 and is connected with two 45 degree inner taper travelling gear 28 kissings merging,After on connecting hole 22, install lining 24,And to install radial thrust bearing 18(in the bearing inside groove 30 on the bearing groove B29 of lining 24 and on transmission main shaft 27 be same radial thrust bearing 18),Sealing external cover 26 is installed again after filling it up with gear oil,By universal joint 4, transmission main shaft 27 is connected with electromotor 3,In the hole, multiple location 17 of both sides draw runner 11 rear end, finally install fixing bolt anti-for tubular type oar propeller 2 and hull are integrally fixed and are namely completed,Otherwise its process is then during repair demolition.

Claims (3)

  1. null1. the tubular type angle of rake transmission joint of anti-oar,Including hull、Waterway and the anti-oar propeller of tubular type,It is characterized in that the left and right sides of described hull is each provided with waterway,The both sides of described waterway are respectively arranged with chute,Described chute is provided with the anti-oar propeller of described tubular type,The described hull of described side chute is provided with butt hole,It is movable to female connector to be provided with in described butt hole,Described activity is to being provided with multiple sealing ring A between female connector and described butt hole,The front end of female connector is provided with multiple sealing ring B by described activity,Described activity is to being provided with fixing bolt A in female connector,The outer ring of female connector is provided with fixing bolt B by described activity,It is connected between described fixing bolt B and described hull,Described activity is to being provided with connecting hole in female connector,Described connecting hole is provided with lining,Described lining is provided with axis hole,The outer end of described lining is provided with bearing groove B,Described bearing groove B is provided with radial thrust bearing,The outer end of female connector is provided with sealing external cover by described activity,Described sealing external cover is provided with transmission axis hole,Described transmission axis hole is provided with sealing ring,The outer end of female connector is additionally provided with temporary sealing lid B by described activity,The surrounding of described temporary sealing lid B is provided with multiple screw notch at the position place of overlapping with described fixing bolt A and described fixing bolt B.
  2. null2. a kind of tubular type angle of rake transmission joint of anti-oar according to claim 1,The anti-oar propeller of described tubular type includes draw runner、Connecting cross beam and transmission bloster,It is characterized in that the angle of rake left and right sides of the anti-oar of described tubular type is each provided with described draw runner,Described activity is connected by described fixing bolt A between female connector and described draw runner,Described connecting cross beam respectively it is connected between the two ends of draw runner described in both sides,Described transmission bloster it is provided with between the middle-end of draw runner described in both sides,Described transmission bloster and the described draw runner of side are provided with spindle hole,The position of the position of described spindle hole and described connecting hole is the same center of circle,Described spindle hole and described connecting hole are movably set with transmission main shaft,The outer end of described transmission main shaft is provided with bearing inside groove,The position of described bearing inside groove is consistent with the position of described bearing groove B,The inner of described transmission main shaft is also equipped with radial thrust bearing,Described spindle hole the inner is provided with bearing groove A,Inner described radial thrust bearing matches with described bearing groove A,The inner of described transmission main shaft is provided with 45 degree of taper travelling gears,It is each provided with oar axle between connecting cross beam described in described transmission bloster and two ends,The inner of oar axle described in two ends is each provided with described 45 degree taper travelling gear,Three described 45 degree taper travelling gear kissings merge and connect,Oar axle described in two ends respectively arranges propeller,Two described propellers are contrary,The outer end of described spindle hole is provided with temporary sealing groove,The diameter of described temporary sealing groove is less than or equal to the diameter of described connecting hole,Described temporary sealing groove is provided with temporary sealing lid A,Described temporary sealing lid A is provided with and facilitates screw,The described screw that facilitates is half bore,Described facilitating is movably set with convenient pole on screw.
  3. 3. a kind of tubular type angle of rake transmission joint of anti-oar according to claim 1,2, it is characterized in that the position that the left and right sides in described hull is symmetrical with described tubular type anti-oar propeller is each provided with electromotor, being provided with universal joint between described electromotor and described transmission main shaft outer end, one end of draw runner described in both sides is each provided with hole, multiple location.
CN201610143923.1A 2016-03-15 2016-03-15 A kind of transmission joint of the anti-oar propeller of tubular type Active CN105799899B (en)

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CN201610143923.1A CN105799899B (en) 2016-03-15 2016-03-15 A kind of transmission joint of the anti-oar propeller of tubular type

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CN201610143923.1A CN105799899B (en) 2016-03-15 2016-03-15 A kind of transmission joint of the anti-oar propeller of tubular type

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CN105799899B CN105799899B (en) 2017-08-22

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109703693B (en) * 2019-01-30 2024-04-16 湖南科技大学 Butt joint equipment and method for movable shaft sleeve of propeller shaft

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59160699A (en) * 1983-01-07 1984-09-11 ライセンテイア・パテント−フエルヴアルトウンクス−ゲゼルシヤフト・ミツト・ベシユレンクテル・ハフトウンク Underwater propeller drive
WO2005021374A1 (en) * 2003-09-01 2005-03-10 Nenad Fles Contra-rotating variable pitch propellers fitted on the strut
CN203461078U (en) * 2013-08-27 2014-03-05 宁波市鄞州发辉机械科技有限公司 Waterborne propelling device
KR20140049733A (en) * 2012-10-18 2014-04-28 삼성중공업 주식회사 Propulsion apparatus for vessel
CN103786854A (en) * 2005-06-09 2014-05-14 施奥泰尔有限公司 Ship propulsion unit
CN204623814U (en) * 2015-05-07 2015-09-09 赖萍生 Ship shaft carries the multistage counter rotating propeller of conduit

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59160699A (en) * 1983-01-07 1984-09-11 ライセンテイア・パテント−フエルヴアルトウンクス−ゲゼルシヤフト・ミツト・ベシユレンクテル・ハフトウンク Underwater propeller drive
WO2005021374A1 (en) * 2003-09-01 2005-03-10 Nenad Fles Contra-rotating variable pitch propellers fitted on the strut
CN103786854A (en) * 2005-06-09 2014-05-14 施奥泰尔有限公司 Ship propulsion unit
KR20140049733A (en) * 2012-10-18 2014-04-28 삼성중공업 주식회사 Propulsion apparatus for vessel
CN203461078U (en) * 2013-08-27 2014-03-05 宁波市鄞州发辉机械科技有限公司 Waterborne propelling device
CN204623814U (en) * 2015-05-07 2015-09-09 赖萍生 Ship shaft carries the multistage counter rotating propeller of conduit

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109703693B (en) * 2019-01-30 2024-04-16 湖南科技大学 Butt joint equipment and method for movable shaft sleeve of propeller shaft

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