JPS61160624A - Bearing lubricating device for contrarotating propeller - Google Patents

Abstract

PURPOSE:To make seawater lubrication for both inner and outer bearings performable as well as to simplify these bearings and a lubricating mechanism so remarkably, by manufacturing these bearings for both inner and outer shafts with a nonferrous corrosion resisting material, while installing each seawater lubricating mechanism in both inner and outer shaft bearings. CONSTITUTION:Inner shaft bearings 32, 33, outer shaft bearings 30, 31 and keep metal devices 30a, 32a and 33a are all manufactured with a nonferrous corrosion resisting material of rubber, resin, etc., and they are to be constituted of making seawater lubrication performable. And, seawater (b) passes through the following route that these inner shaft bearings made of the nonferrous corrosion resisting material the keep metal device 32a these outer shaft bearings 31 and 30 made of a corrosive material the keep metal device 30a, thereby constituting a seawater lubricating mechanism.

Description

【発明の詳細な説明】 （産業上の利用分野） 本発明は、内、外軸によって駆動される船舶二重反転プ
ロイラの内、外軸軸受およびその潤滑に特徴を有する二
重反転プロペラの軸受潤滑装置に関するものである。Detailed Description of the Invention (Field of Industrial Application) The present invention relates to an inner and outer shaft bearing of a ship's counter-rotating propeller driven by the inner and outer shafts, and a counter-rotating propeller bearing characterized by its lubrication. This invention relates to a lubricating device.

（従来の技術） 船舶用二重反転プロイラの内軸軸受に浮動ブツシュ軸受
を装備した場合の軸受、潤滑の従来例を、先に出願した
実願昭５８−１１０９２４号によって説明すると、第３
．４図に示すように船尾側プロ４ツ住υおよび船首側プ
ロペラαりが、内軸（１）、外軸（２）によって個別に
回転駆動されるようになっておシ、内軸（１）と外輪（
２）間に配設された船尾側と船首側の内軸軸受は、第４
図に示すように外軸挿入の軸受ブツシュ（３）、ホワイ
トメタル（４−１，４−２）、油溝（５）、浮動ブツシ
ュ（６）、ホワイトメタル（７−１゜７−２）、油溝（
８）等によって構成されている。(Prior Art) A conventional example of bearings and lubrication when the inner shaft bearing of a counter-rotating propeller for ships is equipped with a floating bush bearing is described in Utility Model Application No. 58-110924 filed earlier.
．． As shown in Figure 4, the stern propeller 4 and the bow propeller are individually driven to rotate by the inner shaft (1) and outer shaft (2). ) and outer ring (
2) The stern side and bow side inner shaft bearings arranged between
As shown in the figure, the outer shaft insertion bearing bush (3), white metal (4-1, 4-2), oil groove (5), floating bush (6), white metal (7-1゜7-2) , oil groove (
8) etc.

また、第３図の（９）ａｌはスターンポスまわりの船体
ａ３と外軸（２）間に配設された船尾側と船首側の固定
軸受ブツシュ、ａ４は機関室の後部隔壁、α５（ｌｆ９
゜ａ７）ａｌは船尾側と船首側の軸シール、０は潤滑油
の入口、ｃｌＱＱυは潤滑油の出口、（ハ）は船尾側の
外軸（２）Ｋ設けた外軸穴、（財）は同側の軸受ブツシ
ュ（３）外周に設は九油溝、（ハ）は船賃側の外軸（２
１に設けた外軸穴、弼は同側の内側（１）に設けた内軸
穴、（５）は同側の外軸（２１に設けた外軸穴、（至）
は逆流防止リップであって、二重反転プロイラの軸受潤
滑装置に構成されている。In addition, (9) al in Fig. 3 is the fixed bearing bushing on the stern side and the bow side arranged between the hull a3 around the stern post and the outer shaft (2), a4 is the rear bulkhead of the engine room, α5 (lf9
゜a7) al is the shaft seal on the stern side and the bow side, 0 is the lubricating oil inlet, clQQυ is the lubricating oil outlet, (c) is the outer shaft on the stern side (2) K is the outer shaft hole, (Foundation) 9 oil grooves are installed on the outer periphery of the bearing bush (3) on the same side, and (c) is the outer shaft (2
The outer shaft hole provided in 1 is the inner shaft hole provided in (1) on the same side, (5) is the outer shaft hole provided in the same side outer shaft (21), (to)
is a backflow prevention lip, which is configured in a bearing lubricating device of a counter-rotating propeller.

さらに、前記軸受潤滑装置の潤滑について詳述すると、
潤滑油（α）は入口顛から供給され次の系統によって船
首側および船尾側の軸受部と船首側の軸シールαη（１
８を潤滑、冷却、シールする構成になって門シ、該潤滑
油の糸路は、人口０→船首側の固定軸受ブツシュａω→
船尾側の固定軸受ブツシュ（９）→外軸穴（ハ）→軸受
ブツシュ（３）外面の油溝（財）→船尾側の軸受（３，
６）→船首側の軸受（３，６）　−シυ になっており、また、出口翰とＱυから排出される潤滑
油（α）は、図示省略した配管、ポンプ等によって入口
←９側に循環される（必要に応じて油冷却器を装備）。Furthermore, to explain in detail the lubrication of the bearing lubrication device,
Lubricating oil (α) is supplied from the inlet and is supplied to the bow and stern bearings and the bow shaft seal αη (1
The lubricating oil thread path is from the population 0 to the fixed bearing bushing aω on the bow side.
Fixed bearing bushing on the stern side (9) → Outer shaft hole (c) → Bearing bushing (3) Oil groove on the outer surface (goods) → Bearing on the stern side (3,
6)→Bearing (3, 6) on the bow side circulated (equipped with oil cooler if necessary).

なお、船尾側の軸シールＱ５）αｅは、海水に接し潤滑
油による冷却の必要はない。Note that the shaft seal Q5)αe on the stern side is in contact with seawater and does not need to be cooled with lubricating oil.

（従来技術の問題点） 前記軸受潤滑装置においては、潤滑油（α）のコースが
著しく長く、作動条件の厳しい船首側の内軸シールαη
の冷却効果が期待できず、潤滑油の圧力を高める必要が
あシシールに悪影響を及ばずとともに、内軸（１）Ｋ設
けた内軸穴弼の加工精度およびその通油に不安があシ、
潤滑機構の構成要素数（部品点数）が多くて全体的に複
雑な機構になっている。(Problems with the prior art) In the bearing lubricating device, the course of the lubricating oil (α) is extremely long, and the inner shaft seal αη on the bow side, which has severe operating conditions,
The cooling effect cannot be expected, and it is necessary to increase the pressure of the lubricating oil to avoid adverse effects on the seal, and there are concerns about the machining accuracy of the inner shaft hole (K) and the oil passage therein.
The lubrication mechanism has a large number of components (parts), making it a complex mechanism overall.

また、二重反転プロはう特有の問題として、船尾側プロ
はうａυの船体０からのオーバーハングが大きくなって
いるため、船尾側の内軸シールａ９は内軸（１）の撓み
に追随するとともに遅速が従来の約２倍となシ、該軸シ
ールに高い追随性が要求され、油潤滑では、油膜切れに
よる焼付きの可能性があシ、％に内軸軸受（３，６）が
焼付くと、内軸が主機に直結状に連設されていることと
関連し非常航走対策が非常に面倒になるなどの問題点が
ある。In addition, as a problem specific to the contra-rotating professional boat, the overhang of the stern-side professional boat aυ from the hull 0 is large, so the stern-side inner shaft seal a9 follows the deflection of the inner shaft (1). At the same time, the slow speed is approximately twice that of the conventional one, and the shaft seal is required to have high tracking ability.With oil lubrication, there is a possibility of seizure due to lack of oil film, and the inner shaft bearing (3, 6) If it seizes, there are problems such as the fact that the inner shaft is directly connected to the main engine, making it extremely difficult to take emergency measures.

（発明の目的、問題点の解決手段） 本発明は、従来の二重反転プロペラの軸受潤滑装置にお
ける前記のような問題点悼対処するために開発されたも
のであって、内、外軸によって駆動される船舶二重反転
プロペラの軸受潤滑装置において、前記内、外軸の軸受
を非鉄耐腐食材製にするとともに、前記内、外軸軸受に
海水潤滑機構を設けた構成に特徴を有し、内、外軸の軸
受を非鉄耐腐食材製にすることによプ、内、外軸受の海
水潤滑を可能とし、軸受、潤滑機構が著しく簡素化され
焼付がなくなシ軸受、潤滑性能および信頼性を著しく向
上して前記のような問題点を解消した二重反転プロペラ
の軸受潤滑装置を供する点にある。(Objective of the Invention, Means for Solving Problems) The present invention was developed to solve the above-mentioned problems in the conventional counter-rotating propeller bearing lubrication system. A bearing lubrication device for a counter-rotating propeller of a driven ship, characterized in that the inner and outer shaft bearings are made of a non-ferrous corrosion-resistant material, and the inner and outer shaft bearings are provided with a seawater lubrication mechanism. By making the inner and outer shaft bearings made of non-ferrous corrosion-resistant material, seawater lubrication of the inner and outer bearings is possible, significantly simplifying the bearing and lubrication mechanism and eliminating seizure. The object of the present invention is to provide a bearing lubrication device for a counter-rotating propeller, which has significantly improved reliability and eliminates the above-mentioned problems.

（発明の実施例） 第１図に本発明の第１実施例を示してお）、図中（１）
は図示省略したディーゼル主機によって回転駆動され船
尾側プロはうαυを回転する内軸、（２）は図示省略し
たディーゼル主機により反転伝達装置を介して回転駆動
され船首側プロペラ←２を回転する外軸、α騰は船体、
α荀は機関室の後部隔壁、αηは船首側の内軸シール、
α樽は船首側の外軸シール、■は船尾側の固定軸受ブツ
シュ、Ｃ３１）は船首側の固定軸受ブツシュ、０渇（２
）は船尾側と船首側の浮動ブツシュであって、前記固定
軸受ブツシュ（７）６υによって外軸軸受が構成され、
前記浮動ブツシュＣ３２（ハ）によって内軸軸受に構成
されているとともに、船尾側の内軸軸受Ｃ！２ｉ＜浮動
ブツシュ）の後側（船尾側）には、ボルト（至）等の手
段によって抑え金具（３２ｇ）が外軸（２）に装着され
、船首側の内軸軸受（至）（浮動ブツシュ）の前側（船
首側）にも、ボルト（至）等の手段によって外軸（２）
に装着されているシール部材（１７α）の７ランジリン
ダ即ち抑え金具（３３α）が設けられ、さらに、外軸軸
受における船尾側の固定軸受ブツシュ（至）の後備（船
尾側）にもボルト（至）等の手段によって抑え金具（３
０α）が船体（１３に装着されている。また、内軸軸・
受；（３２）＜３３）が潤滑用の海水によって浮遊され
円軸の軸受としての機能を有する構成になっておプ、さ
らに、内軸（１）の外周面および外軸（２）の内周面の
全面に１耐水！ムあるいは青銅スリーブ〜が設けられて
いる。(Embodiment of the invention) Fig. 1 shows a first embodiment of the invention), (1) in the figure.
(2) is an inner shaft that is rotationally driven by a diesel main engine (not shown) and rotates the stern propeller αυ, and (2) is an outer shaft that is rotationally driven by a diesel main engine (not shown) via a reversing transmission device and rotates the bow propeller ←2. The axis, α-teng is the hull,
α荀 is the rear bulkhead of the engine room, αη is the inner shaft seal on the bow side,
α barrel is the outer shaft seal on the bow side, ■ is the fixed bearing bushing on the stern side, C31) is the fixed bearing bushing on the bow side, 0 (2
) are floating bushes on the stern side and the bow side, and the fixed bearing bushes (7) 6υ constitute an outer shaft bearing,
The floating bush C32 (c) constitutes an inner shaft bearing, and the inner shaft bearing C! A retainer (32g) is attached to the outer shaft (2) by means such as a bolt on the rear side (stern side) of the floating bushing, and the inner shaft bearing on the bow side (floating bushing) is attached to the outer shaft (2). ) is also attached to the front side (bow side) of the outer shaft (2) by means such as a bolt (to).
A 7-range cylinder or holding fitting (33α) is provided for the sealing member (17α) attached to the 7-range cylinder, and a bolt (to) is also attached to the rear (stern side) of the fixed bearing bush (to) on the stern side of the outer shaft bearing. Attach the metal fittings (3) by means such as
0α) is attached to the hull (13).In addition, the inner shaft
The bearings (32) < 33) are suspended in seawater for lubrication and function as bearings for the circular shaft. 1 Water resistant on the entire circumference! A bronze sleeve is provided.

さらに、本発明においては、前記内軸軸受（３２゜３３
）、前記外軸軸受（３０，３１）および前記抑え金具（
３０α）（３２αＸ３３ｇ）を、ゴム、樹脂、リグナム
バイタ等の非鉄耐腐食材製圧して、海水潤滑を可能にし
た構成にするとともに、海水（ｂ＋の入口管（至）を船
首側の外軸シール６１の後側（船尾側）に設けて、図示
省略した海水供給機構によって供給される潤滑用の側の
非鉄耐腐食材製の内軸軸受（至）Ｃ３２→抑え金具（３
２ｇ）−腐食材製の外軸軸受Ｇ１）ｃｌＱ→抑え金具（
３０り一の経路からなる海水潤滑機構に構成されている
。Furthermore, in the present invention, the inner shaft bearing (32°33
), the outer shaft bearing (30, 31) and the holding fitting (
30α) (32α x 33g) is made of non-ferrous corrosion-resistant material such as rubber, resin, lignum vitae, etc. to enable seawater lubrication. Inner shaft bearing (to) C32 made of non-ferrous corrosion-resistant material provided on the rear side (stern side) and supplied by a seawater supply mechanism (not shown) for lubrication → Holding metal fitting (3)
2g) - Outer shaft bearing made of corrosive material G1) clQ → holding fitting (
It is constructed with a seawater lubrication mechanism consisting of 30 routes.

なお、前記内軸（１）はディーゼル主機（図示省略）Ｋ
直結状に連結されて回転駆動され、外軸（２）はディー
ゼル主機によシ反転伝動機構（図示省略）を介して逆方
向に回転駆動されるとともに、内、外軸（１）（２１に
よって回転される船尾側プロペラαυと船首側プロはう
０は逆回転にて等速もしくはそれに近い回転数で駆動さ
れる。The inner shaft (1) is a diesel main engine (not shown) K.
The outer shaft (2) is directly connected and rotationally driven, and the outer shaft (2) is driven to rotate in the opposite direction by the diesel main engine via a reversing transmission mechanism (not shown), and the inner and outer shafts (1) (21 The rotating stern propeller αυ and the bow propeller 0 are driven in reverse rotation at a constant speed or a rotation speed close to it.

（発明の作用効果） 本発明は、前記のような構成になってお夛、内。(Effects of invention) The present invention has the above-described configuration.

外軸によって駆動される船舶二重反転プロイラの軸受潤
滑装置において、前記内軸軸受および外軸軸受を非鉄耐
腐食材製にするとともに、前記内。In a bearing lubrication device for a ship counter-rotating propeller driven by an outer shaft, the inner shaft bearing and the outer shaft bearing are made of a non-ferrous corrosion-resistant material, and the inner shaft bearing is made of a non-ferrous corrosion-resistant material.

外輪軸５！に海水潤滑機構を設けた構成にしているので
、内軸軸受および外軸軸受を非鉄耐腐食材製にすること
により、内、外軸軸受の海水潤滑が可能となって軸受の
焼付を皆無にすることができ、軸受のシール機構を廃止
できて、軸受機構、潤滑経路の大幅な簡素化とともに、
軸受、潤滑性能および信頼性が著しく向上されている。Outer ring shaft 5! Since the structure is equipped with a seawater lubrication mechanism, the inner and outer shaft bearings are made of non-ferrous corrosion-resistant material, making it possible to lubricate the inner and outer shaft bearings with seawater, completely eliminating bearing seizure. The bearing seal mechanism can be eliminated, and the bearing mechanism and lubrication path can be significantly simplified.
Bearings, lubrication performance and reliability have been significantly improved.

海水潤滑によシ前記浮動ブツシュの浮遊性が高められ、
特に条件の厳しい船尾側の内軸軸受性能および信頼性が
著しく向上されて二重反転プロペラの特徴を最大限に発
揮できるなどの効果を有しおり、前記第１実施例に比べ
ると、潤滑用海水（ｂつの入口管ＯＤを新たに船首側の
外軸シールａ８の４２〜屑３リップ間に設け、入口管０
７）から供給される海水（ｂうが外軸穴ｉ→船首、船尾
側の内軸軸受（至）Ｃ３２→抑え金具（３２α）→ロー
プが−）’　（３８α）→船外の海水潤滑経路とな夛、
それに伴って、入口管（至）から供給される海水（ｂ）
が船首、船尾側外軸軸受ｏ１）ｍ→抑え金具（３０α）
→ロープガ゛−ド（３８ｍ））→船外の海水潤滑経路と
した構成に特徴を有し、該実施例では、外軸軸受０１）
Ｃ３Ｇと内軸軸受（至）Ｃ３望との潤滑用海水（ｂ）（
ｂ’）が、それぞれ独立した入口管（至）０７）によシ
供給されるため、内軸軸受と外軸軸受とにそれらの軸受
条件に最適な海水潤滑にすることができ、第１実施例の
作用効果がさらに高められている。Seawater lubrication enhances the buoyancy of the floating bush,
In particular, the performance and reliability of the inner shaft bearing on the stern side, which is subject to severe conditions, has been significantly improved, and the characteristics of the counter-rotating propeller can be maximized. (B new inlet pipes OD are installed between the 42 and scrap 3 lips of the outer shaft seal a8 on the bow side, and the inlet pipe 0
7) Seawater supplied from (b) Outer shaft hole i → Bow and stern inner shaft bearings (to) C32 → Holder fitting (32α) → Rope -)' (38α) → Outboard seawater lubrication path Tonataku,
Along with this, seawater (b) supplied from the inlet pipe (to)
are the bow and stern outer shaft bearings o1) m → holding fittings (30α)
→ Rope guide (38m)) → Outboard seawater lubrication route, and in this example, the outer shaft bearing 01)
Seawater for lubrication between C3G and inner shaft bearing (to) C3 (b) (
b') are supplied through independent inlet pipes (to) 07), so the inner and outer shaft bearings can be lubricated with seawater, which is optimal for the bearing conditions. The effect of the example is further enhanced.

以上本発明を実施例について説明したが、勿論本発明は
このような実施例にだけ局限されるものではなく、本発
明の精神を逸脱しない範囲内で種糧の設計の改変を施し
つるものである。The present invention has been described above with reference to embodiments, but of course the present invention is not limited to such embodiments, and the design of the seed food may be modified without departing from the spirit of the present invention. be.

【図面の簡単な説明】[Brief explanation of drawings]

第１図は本発明の第１実施例を示す二重反転プロはうの
軸受潤滑装置の縦断面図、第２図は本発明の第２実施例
を示す縦断面図、第３図は従来例を示す縦断面図、第４
図は第３図の浮動ブツシュの断面斜視図である。Fig. 1 is a vertical sectional view of a contra-rotating professional bearing lubricating device showing a first embodiment of the present invention, Fig. 2 is a longitudinal sectional view showing a second embodiment of the invention, and Fig. 3 is a conventional Longitudinal sectional view showing an example, No. 4
The figure is a cross-sectional perspective view of the floating bush of FIG. 3.

Claims (1)

【特許請求の範囲】[Claims] 内、外軸によって駆動される船舶二重反転プロペラの軸
受潤滑装置において、前記内、外軸の軸受を非鉄耐腐食
材製にするとともに、前記内、外軸軸受に海水潤滑機構
を設けたことを特徴とする二重反転プロペラの軸受潤滑
装置。In a bearing lubrication device for a ship's counter-rotating propeller driven by inner and outer shafts, the inner and outer shaft bearings are made of a non-ferrous corrosion-resistant material, and a seawater lubrication mechanism is provided for the inner and outer shaft bearings. A counter-rotating propeller bearing lubrication device featuring: