CN111017178A - Pod type rim propeller - Google Patents

Pod type rim propeller Download PDF

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Publication number
CN111017178A
CN111017178A CN201911373590.1A CN201911373590A CN111017178A CN 111017178 A CN111017178 A CN 111017178A CN 201911373590 A CN201911373590 A CN 201911373590A CN 111017178 A CN111017178 A CN 111017178A
Authority
CN
China
Prior art keywords
stator
propeller
nacelle
pod
guide pipe
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.)
Pending
Application number
CN201911373590.1A
Other languages
Chinese (zh)
Inventor
胡健
毛翼轩
赵旺
王英铸
李涛
郭春雨
王超
汪春辉
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 Engineering University
Original Assignee
Harbin Engineering University
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.)
Filing date
Publication date
Application filed by Harbin Engineering University filed Critical Harbin Engineering University
Priority to CN201911373590.1A priority Critical patent/CN111017178A/en
Publication of CN111017178A publication Critical patent/CN111017178A/en
Pending legal-status Critical Current

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Classifications

    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63H—MARINE PROPULSION OR STEERING
    • B63H20/00—Outboard propulsion units, e.g. outboard motors or Z-drives; Arrangements thereof on vessels
    • B63H20/02—Mounting of propulsion units
    • B63H20/06—Mounting of propulsion units on an intermediate support
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63H—MARINE PROPULSION OR STEERING
    • B63H20/00—Outboard propulsion units, e.g. outboard motors or Z-drives; Arrangements thereof on vessels
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63H—MARINE PROPULSION OR STEERING
    • B63H20/00—Outboard propulsion units, e.g. outboard motors or Z-drives; Arrangements thereof on vessels
    • B63H20/007—Trolling propulsion units
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63H—MARINE PROPULSION OR STEERING
    • B63H23/00—Transmitting power from propulsion power plant to propulsive elements
    • B63H23/22—Transmitting power from propulsion power plant to propulsive elements with non-mechanical gearing
    • B63H23/24—Transmitting power from propulsion power plant to propulsive elements with non-mechanical gearing electric
    • 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
    • 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
    • B63H1/16—Propellers having a shrouding ring attached to blades
    • B63H2001/165—Hubless propellers, e.g. peripherally driven shrouds with blades projecting from the shrouds' inside surfaces
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63H—MARINE PROPULSION OR STEERING
    • B63H23/00—Transmitting power from propulsion power plant to propulsive elements
    • B63H2023/005—Transmitting power from propulsion power plant to propulsive elements using a drive acting on the periphery of a rotating propulsive element, e.g. on a dented circumferential ring on a propeller, or a propeller acting as rotor of an electric motor

Landscapes

  • 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)
  • Wind Motors (AREA)
  • Other Liquid Machine Or Engine Such As Wave Power Use (AREA)

Abstract

A pod type rim propeller belongs to the field of ship propulsion. The structure of the invention comprises a support, a nacelle, a stator, a guide pipe and blades, wherein the upper end of the support is connected with a ship body, the lower end of the support is connected with the nacelle, the nacelle is fixedly connected with a shaft of the stator, the tip end of the stator is fixedly connected with the inner wall of the guide pipe which is annularly arranged, the blades are arranged at the annular center of the guide pipe, a motor stator winding is arranged in the guide pipe, and a motor rotor is arranged at the root of each blade. The invention expands the application of the shaftless propeller, and applies the concept of omnibearing propulsion to rim propulsion; complicated mechanical transmission in the nacelle is omitted, and the motor stator and the rotor of the rim propeller are respectively sealed without dynamic sealing; the pod propeller adds a shaftless concept into the design, so that the cavitation problem of the blade tip is eliminated; the pod is integrated together through the stator by the rim driving propeller, and the propulsion and steering are combined, so that the all-directional propulsion can be realized, and the integrated modular design of ship propulsion is facilitated.

Description

Pod type rim propeller
Technical Field
The invention belongs to the field of ship propulsion, and particularly relates to a pod type rim propeller.
Background
The ship propeller of the conventional propeller is easy to generate blade tip vortex and hub vortex, and the blade tip is easy to generate cavitation problem, thereby causing energy loss. The rim propeller is a novel propeller and is a guide pipe propeller integrated with a motor, compared with the traditional guide pipe propeller, the rim propeller changes axial driving into radial driving, abandons a propeller hub and a blade tip, fundamentally avoids the generation of blade tip vortex and propeller hub vortex, and reduces energy loss. The structure of rim propeller compares in traditional screw more complicacy, and it is fixed in within the blade tip end plate with permanent magnet brushless motor's high-energy magnetism rotor, in the stator coil integration pipe with the motor simultaneously, the permanent magnet magnetic pole is mutual to be placed, and through the current direction continuous change in the stator coil, the production magnetic field drives motor stator and paddle and rotates to produce thrust.
The pod propeller integrates propulsion and steering together, increases the flexibility of a ship in the driving process, and fully embodies the superiority of electric propulsion.
Disclosure of Invention
The invention provides a pod type rim propeller capable of steering in all directions and propelling without a shaft.
In order to achieve the purpose, the nacelle type rim propeller structurally comprises a support 1, a nacelle 2, a stator 3, a guide pipe 4 and blades 5, wherein the upper end of the support 1 is connected with a ship body, the lower end of the support 1 is connected with the nacelle 2, the nacelle 2 is fixedly connected with a shaft of the stator 3, the tip end of the stator 3 is fixedly connected with the inner wall of the guide pipe 4 which is annularly arranged, the blades 5 are arranged at the annular center of the guide pipe 4, a motor stator winding is arranged in the guide pipe 4, and a motor rotor is arranged at the root of each blade 5.
The stator 3 comprises nine tips, and five blades 5 are arranged at the center of the guide tube 4.
The pod type rim propeller is of a push type, the incoming flow direction is the tail part of the pod 2, and the incoming flow sequentially passes through the stator 3 and the blades 5.
And sine alternating current is introduced into the motor stator winding.
The invention has the beneficial effects that:
the pod type rim propeller provided by the invention expands the application of a shaftless propeller and applies the concept of omnibearing propulsion to rim propulsion; the shaftless design omits the complicated mechanical transmission in the nacelle, and the motor stator and the rotor of the rim propeller are respectively sealed, so that the dynamic sealing is not needed at all; the pod propeller adds a shaftless concept into the design, so that the cavitation problem of the blade tip is eliminated; the pod is integrated together through the stator by the rim driving propeller, and the propulsion and steering are combined, so that the all-directional propulsion can be realized, and the integrated modular design of ship propulsion is facilitated.
Drawings
Fig. 1 is a perspective view of the propeller of the present invention.
Figure 2 is an isometric view of the propeller of the present invention.
Fig. 3 is a cross-sectional view of the propeller of the present invention.
Fig. 4 is a side view of the propeller of the present invention.
Fig. 5 is a top view of the impeller of the present invention.
Fig. 6 is a front view of the propeller of the present invention.
Fig. 7 is a rear view of the propeller of the present invention.
Fig. 8 is a basic principle schematic of the rim thruster of the present invention.
The specific implementation mode is as follows:
the invention is further described with reference to the accompanying drawings in which:
example 1
The invention comprises a bracket, a nacelle, a stator, a conduit and blades. The upper end of the support is connected with the ship body, the lower end of the support is connected with the nacelle, and the support enables the ship to generate thrust in different directions through flexible steering; the nacelle is also fixedly connected with a stator, the tip end of the stator is connected with a guide pipe, and five blades are further arranged on the guide pipe.
The invention also includes such features:
1. the whole system is positioned at the tail of the ship;
2. the motor stator winding is placed in the guide pipe, the motor rotor is arranged at the root of the paddle, and the motor stator winding is introduced with alternating current to drive the motor rotor to move, so that the paddle is driven to rotate, and thrust is provided.
Compared with the prior art, the invention has the beneficial effects that:
1. the application of the shaftless propeller is expanded, and the concept of omnibearing propulsion is applied to rim propulsion.
2. For the pod propeller, the shaftless design omits the complicated mechanical transmission in the pod, and the motor stator and the rotor of the rim propeller are respectively sealed, so that the dynamic sealing is completely not needed.
A pod-type rim driven propeller comprises a bracket 1, a pod 2, a stator 3, a conduit 4 and blades 5. The upper end of the support 1 is connected with the ship body, the lower end of the support is connected with the nacelle 2, the nacelle 2 is fixedly connected with a shaft of the stator 3, the tip end of the stator 3 is fixedly connected with the guide pipe 4, the guide pipe 4 is further provided with the blades 5, and the blades 5 can be driven to rotate by a motor stator rotor arranged in the guide pipe.
Fig. 1 to 3 give three-dimensional views of the propeller.
The figure includes a support 1, a nacelle 2, a stator 3, a duct 4 and blades 5. The upper end of the support 1 is connected with a machine disc at the tail of the ship body, the machine disc can drive the support 1 to rotate, and the lower end of the support 1 is connected with the nacelle 2, so that the support 1 rotates to drive the nacelle 2 and a connecting piece thereof to move, and the purpose of omnibearing rotation is achieved; the nacelle 2 is fixedly connected with the stator 3, the stator 3 is provided with nine tip ends, the nine tip ends are used as fixing pieces for connecting the conduit 4 with the nacelle 2, and the nine tip ends are used for generating a rectification effect when water flows from the nacelle 2 to the blades 5; the tip of the stator 3 is fixedly connected with the guide pipe 4, five paddles 5 are arranged on the guide pipe 4, a motor stator rotor set is arranged in the guide pipe 4 and can drive the paddles 5 to rotate, the arrangement mode of the motor stator rotor set is mature technology, and a basic principle diagram is shown in a figure 8.
Fig. 4 to 7 give plan views of the propeller.
The figure includes a support 1, a nacelle 2, a stator 3, a duct 4 and blades 5. The propeller is designed to be of a push type, i.e. the incoming flow direction is the tail part of the nacelle 2 and flows to a far place through the stator 3 and the blades 5 in sequence.
Figure 8 gives a basic principle schematic of a rim thruster.
The figure comprises a motor rotor, a motor stator rotor group, a duct and a blade. When the propeller works, the stator winding of the motor b is introduced with sine alternating current to generate a rotating magnetic field, the magnetic field enables the motor rotor a to move, and therefore the blade d is driven to rotate
Example 2
The invention designs a pod type rim driving propeller which mainly comprises a support, a pod, a stator, a guide pipe and blades. The shaft of stator and nacelle fixed connection, the tip links to each other with the pipe, thereby the pipe can be along with the purpose that the nacelle motion realized all-round gyration, and in addition, the pipe is in the same place the motor is integrated, has saved the inside complicated mechanical structure of nacelle, has thoroughly solved the cavitation problem of screw propeller tip. The invention not only integrates propulsion and steering, but also adds the concept of shaftless propeller into the design, thereby providing beneficial effect for the integrated module in the field of ship propulsion.
1. A pod-type rim driven propeller comprises a support 1, a pod 2, a stator 3, a duct 4 and blades 5. The upper end of the support is connected with the ship body, the lower end of the support is connected with the nacelle, and the support enables the ship to generate thrust in different directions through flexible steering; the nacelle is also fixedly connected with a stator, the tip end of the stator is connected with a guide pipe, and five blades are further arranged on the guide pipe.
2. The pod propeller adds a shaftless concept to the design, eliminating the cavitation problem of the blade tip.
3. The pod is integrated together through the stator by the rim driving propeller, and the propulsion and steering are combined, so that the all-directional propulsion can be realized, and the beneficial effect is provided for the ship propulsion integrated module.

Claims (4)

1. A pod-type rim propeller structurally comprises a support (1), a pod (2), a stator (3), a duct (4) and blades (5), and is characterized in that: the upper end of the support (1) is connected with a ship body, the lower end of the support (1) is connected with the nacelle (2), the nacelle (2) is fixedly connected with a shaft of the stator (3), the tip end of the stator (3) is fixedly connected with the inner wall of the guide pipe (4) in an annular mode, the paddle (5) is installed at the annular center of the guide pipe (4), a motor stator winding is installed inside the guide pipe (4), and a motor rotor is installed at the root of the paddle (5).
2. A pod-type rim thruster according to claim 1, wherein: the stator (3) comprises nine tip ends, and five blades (5) are arranged at the annular center of the guide pipe (4).
3. A pod-type rim thruster according to claim 1, wherein: the nacelle type rim propeller is of a push type, the incoming flow direction is the tail of the nacelle (2), and the incoming flow sequentially passes through the stator (3) and the blades (5).
4. A pod-type rim thruster according to claim 1, wherein: and sine alternating current is introduced into the motor stator winding.
CN201911373590.1A 2019-12-27 2019-12-27 Pod type rim propeller Pending CN111017178A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201911373590.1A CN111017178A (en) 2019-12-27 2019-12-27 Pod type rim propeller

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201911373590.1A CN111017178A (en) 2019-12-27 2019-12-27 Pod type rim propeller

Publications (1)

Publication Number Publication Date
CN111017178A true CN111017178A (en) 2020-04-17

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CN201911373590.1A Pending CN111017178A (en) 2019-12-27 2019-12-27 Pod type rim propeller

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Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111470018A (en) * 2020-05-12 2020-07-31 韩玉军 Pod electric pump jet propeller
CN111547217A (en) * 2020-04-22 2020-08-18 武汉理工大学 Pure electric propulsion ship
CN111674536A (en) * 2020-06-24 2020-09-18 江苏科技大学 Nacelle propeller boundary layer absorption type vortex eliminating device
CN112758293A (en) * 2021-02-07 2021-05-07 武汉波依迈科技有限公司 Rim propeller or generator
CN113815832A (en) * 2021-09-19 2021-12-21 苏州汉瑞船舶推进系统有限公司 Rim-driven semi-submerged propeller
CN114013617A (en) * 2021-11-22 2022-02-08 江苏科技大学 Shaftless rim propeller
CN114184352A (en) * 2021-12-09 2022-03-15 中国船舶科学研究中心 Nacelle dynamometer model test balance device and use method thereof
CN114313184A (en) * 2022-01-05 2022-04-12 武汉船用电力推进装置研究所（中国船舶重工集团公司第七一二研究所） Rim propulsion unit
CN115158620A (en) * 2022-08-09 2022-10-11 江苏科技大学 Ice separation protective device for pod propeller and design method thereof
CN115195981A (en) * 2022-07-21 2022-10-18 江苏科技大学 Electric pod propulsion device without slip ring and assembly method thereof
CN116477039A (en) * 2023-06-25 2023-07-25 武汉理工大学三亚科教创新园 Hub-free water jet propulsion structure and aircraft

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101546931A (en) * 2009-04-28 2009-09-30 中国船舶重工集团公司第七一二研究所 Integrated propeller
US20120093668A1 (en) * 2010-10-18 2012-04-19 Hamilton Sundstrand Corporation Rim driven thruster having propeller drive modules
KR20120100267A (en) * 2011-03-03 2012-09-12 삼성중공업 주식회사 Azimuth thruster and ship having the same
CN203958588U (en) * 2014-04-10 2014-11-26 武汉船用机械有限责任公司 A kind of pod propulsion equipment
CN107108004A (en) * 2014-05-14 2017-08-29 Abb 有限公司 Propulsion unit
CN107662693A (en) * 2017-09-06 2018-02-06 哈尔滨工程大学 A kind of PODDED PROPULSOR with conduit
CN110341921A (en) * 2019-07-23 2019-10-18 上海振华重工(集团)股份有限公司 A kind of full immersion gondola all-direction propeller peculiar to vessel
CN110539866A (en) * 2019-07-26 2019-12-06 北京精密机电控制设备研究所 combined propeller

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101546931A (en) * 2009-04-28 2009-09-30 中国船舶重工集团公司第七一二研究所 Integrated propeller
US20120093668A1 (en) * 2010-10-18 2012-04-19 Hamilton Sundstrand Corporation Rim driven thruster having propeller drive modules
KR20120100267A (en) * 2011-03-03 2012-09-12 삼성중공업 주식회사 Azimuth thruster and ship having the same
CN203958588U (en) * 2014-04-10 2014-11-26 武汉船用机械有限责任公司 A kind of pod propulsion equipment
CN107108004A (en) * 2014-05-14 2017-08-29 Abb 有限公司 Propulsion unit
CN107662693A (en) * 2017-09-06 2018-02-06 哈尔滨工程大学 A kind of PODDED PROPULSOR with conduit
CN110341921A (en) * 2019-07-23 2019-10-18 上海振华重工(集团)股份有限公司 A kind of full immersion gondola all-direction propeller peculiar to vessel
CN110539866A (en) * 2019-07-26 2019-12-06 北京精密机电控制设备研究所 combined propeller

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
沈海龙: "《CFD技术在船舶水动力性能预报上的应用》", 31 January 2018 *
马骋等: "《吊舱推进技术》", 31 May 2007 *

Cited By (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111547217A (en) * 2020-04-22 2020-08-18 武汉理工大学 Pure electric propulsion ship
CN111470018A (en) * 2020-05-12 2020-07-31 韩玉军 Pod electric pump jet propeller
CN111674536A (en) * 2020-06-24 2020-09-18 江苏科技大学 Nacelle propeller boundary layer absorption type vortex eliminating device
CN111674536B (en) * 2020-06-24 2021-04-30 江苏科技大学 Nacelle propeller boundary layer absorption type vortex eliminating device
CN112758293A (en) * 2021-02-07 2021-05-07 武汉波依迈科技有限公司 Rim propeller or generator
CN113815832A (en) * 2021-09-19 2021-12-21 苏州汉瑞船舶推进系统有限公司 Rim-driven semi-submerged propeller
CN114013617B (en) * 2021-11-22 2024-09-03 江苏科技大学 Shaftless rim propeller
CN114013617A (en) * 2021-11-22 2022-02-08 江苏科技大学 Shaftless rim propeller
CN114184352A (en) * 2021-12-09 2022-03-15 中国船舶科学研究中心 Nacelle dynamometer model test balance device and use method thereof
CN114313184A (en) * 2022-01-05 2022-04-12 武汉船用电力推进装置研究所（中国船舶重工集团公司第七一二研究所） Rim propulsion unit
CN115195981A (en) * 2022-07-21 2022-10-18 江苏科技大学 Electric pod propulsion device without slip ring and assembly method thereof
WO2024016674A1 (en) * 2022-07-21 2024-01-25 江苏科技大学 Non-slip-ring electric pod propulsion device and assembly method therefor
JP7534002B1 (en) 2022-07-21 2024-08-14 江蘇科技大学 Slip-ring-less electric pod propulsion system and method of assembling same
CN115158620B (en) * 2022-08-09 2024-04-05 江苏科技大学 Ice separation protection device for nacelle propeller and design method thereof
CN115158620A (en) * 2022-08-09 2022-10-11 江苏科技大学 Ice separation protective device for pod propeller and design method thereof
CN116477039A (en) * 2023-06-25 2023-07-25 武汉理工大学三亚科教创新园 Hub-free water jet propulsion structure and aircraft
CN116477039B (en) * 2023-06-25 2023-09-15 武汉理工大学三亚科教创新园 Hub-free water jet propulsion structure and aircraft

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Application publication date: 20200417