JPH0834397A - Connecting structure of rudder plate and rudder shaft - Google Patents
Connecting structure of rudder plate and rudder shaftInfo
- Publication number
- JPH0834397A JPH0834397A JP19179194A JP19179194A JPH0834397A JP H0834397 A JPH0834397 A JP H0834397A JP 19179194 A JP19179194 A JP 19179194A JP 19179194 A JP19179194 A JP 19179194A JP H0834397 A JPH0834397 A JP H0834397A
- Authority
- JP
- Japan
- Prior art keywords
- rudder
- shaft
- taper
- hole
- tapered
- 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
Links
Landscapes
- Actuator (AREA)
Abstract
Description
【0001】[0001]
【産業上の利用分野】本発明は、比較的小型の吊舵にお
ける舵板と舵軸との結合構造に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a structure for connecting a rudder blade and a rudder shaft in a relatively small suspension rudder.
【0002】[0002]
【従来の技術】従来、吊舵における舵板と舵軸との結合
構造には次の二通りがあった。その一は、舵板と舵軸と
の接合面にそれぞれフランジを設け、このフランジをボ
ルト等で締結するフランジ結合である。その二は、舵板
と舵軸とを直接溶接して一体化する溶接構造である。2. Description of the Related Art Conventionally, there have been the following two structures for connecting a rudder blade and a rudder shaft in a suspension rudder. The first is flange coupling in which a flange is provided on each of the joint surfaces of the rudder blade and the rudder shaft, and the flanges are fastened with bolts or the like. The second is a welding structure in which the rudder blade and the rudder shaft are directly welded and integrated.
【0003】[0003]
【発明が解決しようとする課題】前者の場合、フランジ
が水の抵抗となり、推進効率を低下させる欠点がある。
特に、最近では、船舶も高速化されているから、必然的
にフランジも大きくなって効率を一層低下させている。
後者の場合、溶接が可能な材質ということになると、往
々にして強度の高いものは望めないという欠点がある。
この場合も、高速化に伴ってこの欠点が更に助長され
る。In the former case, there is a drawback that the flange becomes a resistance against water and the propulsion efficiency is lowered.
In particular, recently, the speed of ships has been increased, so that the flanges are inevitably large and the efficiency is further reduced.
In the latter case, when it comes to a material that can be welded, it is often the case that a material with high strength cannot be expected.
Also in this case, this defect is further promoted as the speed is increased.
【0004】そこで、大型の舵等では、テーパ嵌合によ
って必要な摩擦力を得る方法が行われているが、テーパ
嵌合を適切に行うには非常に大きな押込力を必要とす
る。このため、押込治具等を舵板内に設けたりして対処
しているが、小型の舵では、スペース上の制約もあって
このような押込治具が組み込めないという問題がある。
本発明は、このような点を解決するものであり、小型の
舵であっても、必要な押込力を得られるテーパ結合を可
能にしたものである。Therefore, in a large rudder or the like, a method of obtaining a necessary frictional force by taper fitting is used, but a very large pushing force is required to properly perform the taper fitting. For this reason, a pushing jig or the like is provided inside the rudder blade, but there is a problem that such a pushing jig cannot be incorporated in a small rudder due to space limitations.
The present invention solves such a point, and enables taper coupling to obtain a necessary pushing force even with a small rudder.
【0005】[0005]
【課題を解決するための手段】以上の課題の下、本発明
は、舵軸にテーパ部を形成し、テーパ部を舵板に形成し
たテーパ孔に嵌合して舵板と舵軸とを結合するに、テー
パ部の先端側に補助軸を延長して補助軸を舵板に形成し
た挿通孔に挿通するとともに、補助軸先端にシールライ
ナを嵌着し、シールライナをピストンとする油圧シリン
ダを挿通孔下端に形成したことを特徴とする舵板と舵軸
との結合構造を提供したものである。Under the above problems, the present invention provides a rudder shaft and a rudder shaft by forming a taper portion in the rudder shaft and fitting the taper portion into a tapered hole formed in the rudder plate. For coupling, the auxiliary cylinder is extended to the tip side of the taper part, and the auxiliary shaft is inserted into the insertion hole formed in the rudder plate.The seal liner is fitted to the tip of the auxiliary shaft, and the seal liner serves as a piston. And a rudder blade and a rudder shaft are formed at the lower end of the insertion hole.
【0006】[0006]
【作用】本発明は、以上の手段をとるものであるから、
即ち、舵軸と舵板との間に油圧シリンダを構設するもの
であるから、その油圧力でテーパ嵌合に必要な押込力が
得られる。The present invention takes the above means,
That is, since the hydraulic cylinder is constructed between the rudder shaft and the rudder plate, the pushing force required for the taper fitting can be obtained by the hydraulic pressure.
【0007】[0007]
【実施例】図2は本発明の実施例を示す舵板と舵軸との
関係を示す断面図であるが、舵板10の舵軸挿通部分に
ハブ12を形成し、このハブ12に舵軸14を挿通する
のである。このとき、舵軸14の上部にはテーパ部16
を形成するとともに、その下方にストレートな補助軸1
8を延長し、舵板10の該当部分に形成されたテーパ孔
20及び挿通孔22にそれぞれ差し通すのである。FIG. 2 is a sectional view showing the relationship between a rudder blade and a rudder shaft according to an embodiment of the present invention. A hub 12 is formed in the rudder shaft insertion portion of the rudder blade 10 and the hub 12 is steered. The shaft 14 is inserted. At this time, the tapered portion 16 is provided on the rudder axle 14.
And a straight auxiliary shaft 1 below it.
8 is extended and inserted into the tapered hole 20 and the insertion hole 22 formed in the corresponding portion of the rudder blade 10, respectively.
【0008】テーパ部16をテーパ孔20にきっちりと
押し込むためには相当な押込力を必要とするのは前述し
たとおりであるが、本発明では、これを次のようにして
解決している。図1はその要部の断面図であるが、ハブ
12の下端に挿通孔22の径よりも大きな径の穴24を
形成し、この穴24に摺動可能に緊嵌されるシールライ
ナ26を補助軸18の下端に嵌着するのである。As described above, a considerable pushing force is required to press the taper portion 16 into the taper hole 20 exactly. However, the present invention solves this problem as follows. FIG. 1 is a cross-sectional view of the main part thereof. A hole 24 having a diameter larger than the diameter of the insertion hole 22 is formed in the lower end of the hub 12, and a seal liner 26 slidably fitted in the hole 24 is provided. It is fitted to the lower end of the auxiliary shaft 18.
【0009】この場合、シールライナ26は補助軸18
に対して摺動可能に嵌合し、これをナット28で調整す
るようにしてある。又、シールライナ26には径方向に
貫通する小孔30が形成してある。これにより、穴24
とシールライナ26とで構成される室は小孔30の部分
を除けば密閉されたものとなり、ここに圧力油を供給す
れば、シールライナ26がピストンとなる油圧シリンダ
が構設されることになる。In this case, the seal liner 26 is the auxiliary shaft 18
It is fitted so as to be slidable with respect to and is adjusted by the nut 28. Further, the seal liner 26 is formed with a small hole 30 penetrating in the radial direction. This allows holes 24
The chamber constituted by the seal liner 26 and the seal liner 26 is sealed except for the small hole 30, and when pressure oil is supplied to the chamber, a hydraulic cylinder in which the seal liner 26 serves as a piston is constructed. Become.
【0010】従って、舵軸14を舵板10に差し通した
際に、シールライナ26を嵌着して(ナット28を螺合
しておく)、ハンドポンプ32等で小孔30に圧力油を
供給してやると、油圧シリンダが作動して舵軸14は下
方に押し込まれる。必要な押込量が得られると、ナット
28を締め上げれば、舵板10と舵軸14とは完全に結
合される(ハンドボンプ32と小孔30との配管を外し
ておくことで圧力油は自然に抜かれる)。Therefore, when the rudder shaft 14 is inserted through the rudder blade 10, the seal liner 26 is fitted (the nut 28 is screwed in), and pressure oil is applied to the small hole 30 by the hand pump 32 or the like. When supplied, the hydraulic cylinder operates and the rudder axle 14 is pushed downward. When the required amount of pushing is obtained, the rudder blade 10 is completely connected to the rudderstock 14 by tightening the nut 28 (the pressure oil naturally flows by removing the piping between the hand pump 32 and the small hole 30). Overtaken).
【0011】尚、本例では、テーパ部16とテーパ孔2
0との動力伝動を両者の摩擦力で行うキーレス嵌合にし
たものを示したが、このとき、テーパ部16の動きを軽
くスムーズにするための構造が施されている。即ち、テ
ーパ孔20の内周に相互に連通する何条かの油溝34を
形成しておき、これにハントポンプ32等で圧力油を供
給してやるのである。圧力油が潤滑油の作用をし、舵軸
14の抜き差しを軽くするからである。但し、このよう
な構造は本発明に必須のものではない。In this example, the taper portion 16 and the taper hole 2 are provided.
A keyless fitting in which power transmission with 0 is performed by frictional force between the two is shown, but at this time, a structure is provided to make the movement of the tapered portion 16 light and smooth. That is, some oil grooves 34 which communicate with each other are formed in the inner circumference of the tapered hole 20, and pressure oil is supplied to the oil grooves 34 by the hunt pump 32 or the like. This is because the pressure oil acts as a lubricating oil to lighten the insertion / removal of the rudderstock 14. However, such a structure is not essential to the present invention.
【0012】図3はテーパ部16とテーパ孔20との嵌
合の他の実施例を示す要部断面図であるが、本例のもの
は、テーパ部16とテーパ孔20との間にキー36を介
在させ、これで動力伝動を図るキー嵌合を示したもので
ある。本発明の適用性は、テーパ嵌合がこのような構造
をとるものであっても何ら障害を受けない。FIG. 3 is a cross-sectional view of an essential part showing another embodiment of fitting the taper portion 16 and the taper hole 20. In this embodiment, a key is provided between the taper portion 16 and the taper hole 20. 36 shows a key fitting in which 36 is interposed to achieve power transmission. The applicability of the present invention is not hindered even if the taper fitting has such a structure.
【0013】この他、以上において、圧力油が漏れる心
配のある箇所、即ち、シールライナ26の内外周と補助
軸18及びハブ12の接触面、補助軸18と挿通孔22
との接触面、舵軸14とハブ12上端との接触面等には
それぞれシール用のOリング38が装着されている。In addition to the above, in the above, there is a concern that pressure oil may leak, that is, the contact surface between the inner and outer circumferences of the seal liner 26 and the auxiliary shaft 18 and the hub 12, the auxiliary shaft 18 and the insertion hole 22.
An O-ring 38 for sealing is attached to each of the contact surface with the, the contact surface between the rudder shaft 14 and the upper end of the hub 12, and the like.
【0014】ところで、本例におけるハブ12は、上部
ボス12aと下部ボス12bとをパイプ12cで溶接し
て繋いだ構造のものが示されているが、これは、精度及
びコスト面を考慮してのことで、これに限定されるもの
ではない。又、舵軸14におけるテーパ部16と補助軸
18とは一体構造のものを示したが、別体にしてネジ等
で連結したものであってもよい。By the way, the hub 12 in this embodiment has a structure in which the upper boss 12a and the lower boss 12b are connected by welding with the pipe 12c, but this is taken into consideration in terms of accuracy and cost. However, the present invention is not limited to this. Further, although the taper portion 16 and the auxiliary shaft 18 of the rudder shaft 14 are shown as having an integrated structure, they may be separately provided and connected by a screw or the like.
【0015】[0015]
【発明の効果】以上、本発明は、前記したものであるか
ら、即ち、舵軸の下端に舵板との間で舵軸の押込力を派
生させる簡易な油圧シリンダを構設したものであるか
ら、大きな押込力を必要とするものの、強固な結合が得
られるテーパ嵌合で舵板と舵軸とを結合することができ
る。又、舵板中を舵軸が貫通した状態となるので、舵板
を補強する役目も果たす。このようなことから、舵軸等
をむやみに太径化することなく、高速化に対応できる。As described above, according to the present invention, the simple hydraulic cylinder for deriving the pushing force of the rudder shaft between the lower end of the rudder shaft and the rudder blade is constructed. Therefore, although a large pushing force is required, the rudder blade and the rudder shaft can be connected by the taper fitting that can obtain a strong connection. Further, since the rudder shaft penetrates through the rudder blade, it also serves to reinforce the rudder blade. For this reason, it is possible to cope with the speedup without making the rudder shaft and the like unnecessarily thick.
【図1】本発明の実施例を示す舵板と舵軸との関係を示
す要部断面図である。FIG. 1 is a sectional view of an essential part showing a relationship between a rudder blade and a rudder shaft showing an embodiment of the present invention.
【図2】本発明の実施例を示す舵板と舵軸との関係を示
す断面図である。FIG. 2 is a cross-sectional view showing a relationship between a rudder blade and a rudder shaft showing an embodiment of the present invention.
【図3】本発明の他の実施例を示す舵板と舵軸との関係
を示す要部断面図である。FIG. 3 is a sectional view of an essential part showing the relationship between a rudder blade and a rudder shaft showing another embodiment of the present invention.
10 舵板 14 舵軸 16 テーパ部 18 補助軸 20 テーパ孔 22 挿通孔 26 シールライナ 10 rudder plate 14 rudder shaft 16 taper portion 18 auxiliary shaft 20 taper hole 22 insertion hole 26 seal liner
Claims (3)
板に形成したテーパ孔に嵌合して舵板と舵軸とを結合す
るに、テーパ部の先端側に補助軸を延長して補助軸を舵
板に形成した挿通孔に挿通するとともに、補助軸先端に
シールライナを嵌着し、シールライナをピストンとする
油圧シリンダを挿通孔下端に形成したことを特徴とする
舵板と舵軸との結合構造。1. A rudder shaft is formed with a taper portion, and the auxiliary shaft is extended to the tip end side of the taper portion in order to connect the rudder plate and the rudder shaft by fitting the taper portion into a taper hole formed in the rudder plate. And the auxiliary shaft is inserted through the insertion hole formed in the rudder blade, and the seal liner is fitted at the tip of the auxiliary shaft, and the hydraulic cylinder using the seal liner as a piston is formed at the lower end of the insertion hole. And the rudder axle coupling structure.
る請求項1の舵板と舵軸との結合構造。2. The connecting structure for a rudder blade and a rudder shaft according to claim 1, wherein the tapered portion and the tapered hole are keyless fitted.
求項1の舵板と舵軸との結合構造。3. The structure for connecting a rudder blade and a rudder shaft according to claim 1, wherein the tapered portion and the tapered hole are key-fitted.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP19179194A JPH0834397A (en) | 1994-07-22 | 1994-07-22 | Connecting structure of rudder plate and rudder shaft |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP19179194A JPH0834397A (en) | 1994-07-22 | 1994-07-22 | Connecting structure of rudder plate and rudder shaft |
Publications (1)
Publication Number | Publication Date |
---|---|
JPH0834397A true JPH0834397A (en) | 1996-02-06 |
Family
ID=16280603
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP19179194A Pending JPH0834397A (en) | 1994-07-22 | 1994-07-22 | Connecting structure of rudder plate and rudder shaft |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH0834397A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2009102209A1 (en) | 2008-01-09 | 2009-08-20 | Rolls-Royce Marine As | An arrangement for attaching a ship rudder to a rudder shaft, a rudder shaft, a ship rudder and a method for disassembly of a ship ship rudder from a rudder shaft |
-
1994
- 1994-07-22 JP JP19179194A patent/JPH0834397A/en active Pending
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2009102209A1 (en) | 2008-01-09 | 2009-08-20 | Rolls-Royce Marine As | An arrangement for attaching a ship rudder to a rudder shaft, a rudder shaft, a ship rudder and a method for disassembly of a ship ship rudder from a rudder shaft |
EP2231472A1 (en) * | 2008-01-09 | 2010-09-29 | Rolls-Royce Marine AS | An arrangement for attaching a ship rudder to a rudder shaft, a rudder shaft, a ship rudder and a method for disassembly of a ship ship rudder from a rudder shaft |
JP2011509215A (en) * | 2008-01-09 | 2011-03-24 | ロールス−ロイス マリン アクスイェ セルスカプ | Arrangement for attaching the rudder to the rudder axle, rudder axle, ship rudder, and method for removing the rudder from the rudder axle |
EA018095B1 (en) * | 2008-01-09 | 2013-05-30 | Роллс-Ройс Марине Ас | An arrangement for attaching a ship rudder to a rudder shaft, a rudder shaft, a ship rudder and a method for disassembly of a ship ship rudder from a rudder shaft |
EP2231472A4 (en) * | 2008-01-09 | 2013-06-05 | Rolls Royce Marine As | An arrangement for attaching a ship rudder to a rudder shaft, a rudder shaft, a ship rudder and a method for disassembly of a ship ship rudder from a rudder shaft |
NO333853B1 (en) * | 2008-01-09 | 2013-09-30 | Rolls Royce Marine As | Apparatus and method for attaching a ship's rudder to a helm, a helm, and a ship's helm |
AU2009213240B8 (en) * | 2008-01-09 | 2014-01-30 | Rolls-Royce Marine As | A system for attaching a ship rudder to a rudder shaft and a method for disassembly of a ship rudder from a rudder shaft |
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