WO2018223556A1 - Marine reaction fin having reduced vibration - Google Patents

Marine reaction fin having reduced vibration Download PDF

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Publication number
WO2018223556A1
WO2018223556A1 PCT/CN2017/102544 CN2017102544W WO2018223556A1 WO 2018223556 A1 WO2018223556 A1 WO 2018223556A1 CN 2017102544 W CN2017102544 W CN 2017102544W WO 2018223556 A1 WO2018223556 A1 WO 2018223556A1
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WO
WIPO (PCT)
Prior art keywords
fin
hub
fin hub
tail
annular gap
Prior art date
Application number
PCT/CN2017/102544
Other languages
French (fr)
Chinese (zh)
Inventor
周艳华
李玩幽
胡以怀
方云虎
Original Assignee
中航鼎衡造船有限公司
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 中航鼎衡造船有限公司 filed Critical 中航鼎衡造船有限公司
Publication of WO2018223556A1 publication Critical patent/WO2018223556A1/en

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    • 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
    • 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
    • B63H5/16—Arrangements on vessels of propulsion elements directly acting on water of propellers characterised by being mounted in recesses; with stationary water-guiding elements; Means to prevent fouling of the propeller, e.g. guards, cages or screens
    • 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
    • B63H2001/283—Propeller hub caps with fins having a pitch different from pitch of propeller blades, or a helix hand opposed to the propellers' helix hand

Definitions

  • the invention relates to a reaction fin, in particular to a marine shock absorption reaction fin.
  • the usual reaction fins are used to improve the propulsion performance of the vessel in order to create a swirling flow in a direction opposite to the direction of rotation of the propeller that is applied to the water flowing into the auger to propel the stern.
  • the existing reaction fin structure has a plurality of reaction fins mounted on the outer surface of the fin hub, and the reaction fins are welded on the surface of the fin hub. If the welding is not strong, the overall rigidity is affected, and the fin hub is mounted on the tail column, and the reaction fins are in operation. It will generate a lot of vibration noise, affecting the installation stability and reducing the service life.
  • the object of the present invention is to provide a marine shock absorption reaction fin which is simple in structure, convenient in manufacture, capable of reducing vibration noise, improving installation robustness, improving rigidity of reaction fins, and prolonging service life.
  • the tail column and the fin hub are sleeved, and the fin hub is sleeved outside the tail column, and the fin hub is provided with a blade, the fin hub is integral with the blade and is formed by casting, the tail column and the fin hub An annular gap is disposed therebetween, and the front and rear ends of the fin hub are respectively provided with baffles, and the baffles are weldedly connected to the outer surfaces of the fin hub and the tail post, and the annular gap is filled with epoxy.
  • the front and rear ends of the annular gap are respectively provided with annular plates welded on the outer surface of the tail column, and the outer sides of the annular plates are weldedly connected to the baffles.
  • the annular gap has a thickness of 40-60 mm.
  • the front end section of the tail post and the fin hub is circular, and the rear end section of the tail post and the fin hub is polygonal.
  • the invention has simple structure, is integrated by casting the fin hub and the blade, improves the installation firmness and is convenient to manufacture, and reduces the vibration noise of the fin hub and improves the quality of the reaction fin by injecting epoxy into the annular gap between the fin hub and the tail column. And rigidity, extending the service life.
  • Figure 1 is a schematic view of the structure of the present invention.
  • Figure 2 is a partial enlarged view of A in Figure 1.
  • Figure 3 is a partial enlarged view of B in Figure 1.
  • Figure 4 is a view taken along line C in Figure 1.
  • Figure 5 is a view taken in the direction of D in Figure 1.
  • 1 is a tail post
  • 2 is a fin hub
  • 3 is a baffle
  • 4 is an epoxy
  • 5 is an annular plate.
  • a marine shock absorbing reaction fin includes a tail column 1 and a fin hub 2, the fin hub 2 is sleeved outside the tail column 1, and the fin hub 2 is provided with blades, and the fin hub 2 is integral with the blade And being formed by casting, an annular gap is formed between the tail column 1 and the fin hub 2, and the baffle 2 is respectively provided with a baffle 3 at the front and rear ends thereof, the baffle 3 and the fin hub 2 and the tail column 1 The outer surface is weldedly joined, and the annular gap is filled with epoxy 4.
  • the front and rear ends of the annular gap are respectively provided with an annular plate 5 welded on the outer surface of the tail column 1, and the outer side of the annular plate 5 is weldedly connected to the baffle 3.
  • the annular gap has a thickness of 40-60 mm.
  • the front end of the tail column 1 and the fin hub 2 has a circular cross section
  • the rear end of the tail post 1 and the fin hub 2 has a polygonal cross section

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Ocean & Marine Engineering (AREA)
  • Road Signs Or Road Markings (AREA)
  • Turbine Rotor Nozzle Sealing (AREA)

Abstract

A marine reaction fin having reduced vibration, comprising a tail column (1) and a fin hub (2). The fin hub (2) sleeves on the tail column (1). The fin hub (2) is provided with a blade. The fin hub (2) is integrally formed with the blade by casting. An annular gap is formed between the tail column (1) and the fin hub (2). A front end and a rear end of the fin hub (2) are each provided with a baffle (3). The baffle (3) is welded to an outer surface of the fin hub (2) and an outer surface of the tail column (1). The annular gap is filled with epoxy resin (4). The reaction fin has a simple structure, and the fin hub (2) is integrally formed with the blade by casting, improving assembly soundness, and facilitating manufacturing. The annular gap between the fin hub (2) and the tail column (1) is filled with epoxy resin (4), reducing vibration noise of the fin hub (2), improving reaction fin quality and rigidity, and prolonging service life.

Description

一种船用减震反作用鳍Marine shock absorption reaction fin 技术领域Technical field
本发明涉及一种反作用鳍，尤其涉及一种船用减震反作用鳍。The invention relates to a reaction fin, in particular to a marine shock absorption reaction fin.
背景技术Background technique
通常的反作用鳍是用于改进船只的推进性能，目的是产生一个方向与推进器回转方向相反的回转流动施加到流入螺旋推进器中的水流以推动船尾。现有的反作用鳍结构为鰭毂外表面安装若干反作用鳍板，反作用鳍板是焊接在鰭毂表面上，焊接不牢固会影响整体刚性，鰭毂安装在尾柱上，反作用鳍在运行过程中会产生很大的震动噪音，影响安装牢固性，降低了使用寿命。The usual reaction fins are used to improve the propulsion performance of the vessel in order to create a swirling flow in a direction opposite to the direction of rotation of the propeller that is applied to the water flowing into the auger to propel the stern. The existing reaction fin structure has a plurality of reaction fins mounted on the outer surface of the fin hub, and the reaction fins are welded on the surface of the fin hub. If the welding is not strong, the overall rigidity is affected, and the fin hub is mounted on the tail column, and the reaction fins are in operation. It will generate a lot of vibration noise, affecting the installation stability and reducing the service life.
发明内容Summary of the invention
针对上述缺陷，本发明的目的在于提供一种结构简单，制作方便，能够减低震动噪音，提高安装牢固性，提高反作用鳍的刚性，延长使用寿命的一种船用减震反作用鳍。In view of the above drawbacks, the object of the present invention is to provide a marine shock absorption reaction fin which is simple in structure, convenient in manufacture, capable of reducing vibration noise, improving installation robustness, improving rigidity of reaction fins, and prolonging service life.
为此本发明所采用的技术方案是：To this end, the technical solution adopted by the present invention is:
包括尾柱和鳍毂，所述鳍毂套接在尾柱外，所述鳍毂上设有叶片，所述鳍毂与叶片为一整体并通过铸造而成，所述尾柱与鳍毂之间设有环形间隙，所述鳍毂前后两端分别设有挡板，所述挡板与鳍毂和尾柱外表面焊接连接，所述环形间隙内注有环氧。The tail column and the fin hub are sleeved, and the fin hub is sleeved outside the tail column, and the fin hub is provided with a blade, the fin hub is integral with the blade and is formed by casting, the tail column and the fin hub An annular gap is disposed therebetween, and the front and rear ends of the fin hub are respectively provided with baffles, and the baffles are weldedly connected to the outer surfaces of the fin hub and the tail post, and the annular gap is filled with epoxy.
作为上述技术方案的进一步改进，所述环形间隙前后两端分别设有焊接在尾柱外表面上的环形板，所述环形板的外侧与挡板焊接连接。As a further improvement of the above technical solution, the front and rear ends of the annular gap are respectively provided with annular plates welded on the outer surface of the tail column, and the outer sides of the annular plates are weldedly connected to the baffles.
作为上述技术方案的进一步改进，所述环形间隙的厚度为40-60mm。 As a further improvement of the above technical solution, the annular gap has a thickness of 40-60 mm.
作为上述技术方案的进一步改进，所述尾柱和鳍毂的前端截面为圆形，所述尾柱和鳍毂的后端截面为多边形。As a further improvement of the above technical solution, the front end section of the tail post and the fin hub is circular, and the rear end section of the tail post and the fin hub is polygonal.
本发明的优点是：The advantages of the invention are:
本发明结构简单，通过采用鰭毂与叶片铸造成为一体，提高安装牢固性，制造方便，通过在鰭毂与尾柱之间的环形间隙内注入环氧，减少鰭毂震动噪音，提高反作用鳍质量及刚性，延长使用寿命。The invention has simple structure, is integrated by casting the fin hub and the blade, improves the installation firmness and is convenient to manufacture, and reduces the vibration noise of the fin hub and improves the quality of the reaction fin by injecting epoxy into the annular gap between the fin hub and the tail column. And rigidity, extending the service life.
附图说明DRAWINGS
图1是本发明的结构示意图。Figure 1 is a schematic view of the structure of the present invention.
图2是图1中A的局部放大图。Figure 2 is a partial enlarged view of A in Figure 1.
图3是图1中B的局部放大图。Figure 3 is a partial enlarged view of B in Figure 1.
图4是图1中C向视图。Figure 4 is a view taken along line C in Figure 1.
图5是图1中D向视图。Figure 5 is a view taken in the direction of D in Figure 1.
图中1是尾柱、2是鰭毂、3是挡板、4是环氧、5是环形板。In the figure, 1 is a tail post, 2 is a fin hub, 3 is a baffle, 4 is an epoxy, and 5 is an annular plate.
具体实施方式detailed description
一种船用减震反作用鳍，包括尾柱1和鳍毂2，所述鳍毂2套接在尾柱1外，所述鳍毂2上设有叶片，所述鳍毂2与叶片为一整体并通过铸造而成，所述尾柱1与鳍毂2之间设有环形间隙，所述鳍毂2前后两端分别设有挡板3，所述挡板3与鳍毂2和尾柱1外表面焊接连接，所述环形间隙内注有环氧4。A marine shock absorbing reaction fin includes a tail column 1 and a fin hub 2, the fin hub 2 is sleeved outside the tail column 1, and the fin hub 2 is provided with blades, and the fin hub 2 is integral with the blade And being formed by casting, an annular gap is formed between the tail column 1 and the fin hub 2, and the baffle 2 is respectively provided with a baffle 3 at the front and rear ends thereof, the baffle 3 and the fin hub 2 and the tail column 1 The outer surface is weldedly joined, and the annular gap is filled with epoxy 4.
作为上述技术方案的进一步改进，所述环形间隙前后两端分别设有焊接在尾柱1外表面上的环形板5，所述环形板5的外侧与挡板3焊接连接。As a further improvement of the above technical solution, the front and rear ends of the annular gap are respectively provided with an annular plate 5 welded on the outer surface of the tail column 1, and the outer side of the annular plate 5 is weldedly connected to the baffle 3.
作为上述技术方案的进一步改进，所述环形间隙的厚度为40-60mm。 As a further improvement of the above technical solution, the annular gap has a thickness of 40-60 mm.
作为上述技术方案的进一步改进，所述尾柱1和鳍毂2的前端截面为圆形，所述尾柱1和鳍毂2的后端截面为多边形。 As a further improvement of the above technical solution, the front end of the tail column 1 and the fin hub 2 has a circular cross section, and the rear end of the tail post 1 and the fin hub 2 has a polygonal cross section.

Claims (4)

  1. 一种船用减震反作用鳍，其特征在于，包括尾柱和鳍毂，所述鳍毂套接在尾柱外，所述鳍毂上设有叶片，所述鳍毂与叶片为一整体并通过铸造而成，所述尾柱与鳍毂之间设有环形间隙，所述鳍毂前后两端分别设有挡板，所述挡板与鳍毂和尾柱外表面焊接连接，所述环形间隙内注有环氧。A marine shock absorption reaction fin is characterized in that it comprises a tail column and a fin hub, the fin hub is sleeved outside the tail column, and the fin hub is provided with a blade, and the fin hub is integrated with the blade and passes through Casting, an annular gap is formed between the tail column and the fin hub, and the front and rear ends of the fin hub are respectively provided with baffles, and the baffle is weldedly connected with the outer surface of the fin hub and the tail post, the annular gap The inside is filled with epoxy.
  2. 根据权利要求1所述的一种船用减震反作用鳍，其特征在于，所述环形间隙前后两端分别设有焊接在尾柱外表面上的环形板，所述环形板的外侧与挡板焊接连接。The marine anti-snaking reaction fin according to claim 1, wherein the annular gap is respectively provided with an annular plate welded on the outer surface of the tail column, and the outer side of the annular plate is welded to the baffle plate. connection.
  3. 根据权利要求1所述的一种船用减震反作用鳍，其特征在于，所述环形间隙的厚度为40-60mm。A marine shock absorbing reaction fin according to claim 1, wherein the annular gap has a thickness of 40-60 mm.
  4. 根据权利要求1所述的一种船用减震反作用鳍，其特征在于，所述尾柱和鳍毂的前端截面为圆形，所述尾柱和鳍毂的后端截面为多边形。 The marine shock absorbing reaction fin according to claim 1, wherein a front end section of the tail post and the fin hub is circular, and a rear end section of the tail post and the fin hub is polygonal.
PCT/CN2017/102544 2017-06-09 2017-09-21 Marine reaction fin having reduced vibration WO2018223556A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201710434089.6A CN107128468A (en) 2017-06-09 2017-06-09 A kind of damping reaction fin peculiar to vessel
CN201710434089.6 2017-06-09

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WO2018223556A1 true WO2018223556A1 (en) 2018-12-13

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107128468A (en) * 2017-06-09 2017-09-05 中航鼎衡造船有限公司 A kind of damping reaction fin peculiar to vessel

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US4832568A (en) * 1982-02-26 1989-05-23 General Electric Company Turbomachine airfoil mounting assembly
CN1072145A (en) * 1991-11-14 1993-05-19 三菱重工业株式会社 Marine reaction fin arrangement
CN106672186A (en) * 2017-02-09 2017-05-17 中国科学院电工研究所 Full-open type double-body contra-rotating underwater propulsion system
CN107128468A (en) * 2017-06-09 2017-09-05 中航鼎衡造船有限公司 A kind of damping reaction fin peculiar to vessel
CN206914601U (en) * 2017-06-09 2018-01-23 中航鼎衡造船有限公司 A kind of damping reaction fin peculiar to vessel

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Publication number Priority date Publication date Assignee Title
US4832568A (en) * 1982-02-26 1989-05-23 General Electric Company Turbomachine airfoil mounting assembly
CN1072145A (en) * 1991-11-14 1993-05-19 三菱重工业株式会社 Marine reaction fin arrangement
CN106672186A (en) * 2017-02-09 2017-05-17 中国科学院电工研究所 Full-open type double-body contra-rotating underwater propulsion system
CN107128468A (en) * 2017-06-09 2017-09-05 中航鼎衡造船有限公司 A kind of damping reaction fin peculiar to vessel
CN206914601U (en) * 2017-06-09 2018-01-23 中航鼎衡造船有限公司 A kind of damping reaction fin peculiar to vessel

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Title
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