JP2002250398A - Vibration damping cover - Google Patents
Vibration damping coverInfo
- Publication number
- JP2002250398A JP2002250398A JP2001046894A JP2001046894A JP2002250398A JP 2002250398 A JP2002250398 A JP 2002250398A JP 2001046894 A JP2001046894 A JP 2001046894A JP 2001046894 A JP2001046894 A JP 2001046894A JP 2002250398 A JP2002250398 A JP 2002250398A
- Authority
- JP
- Japan
- Prior art keywords
- vibration
- body wall
- absorbing
- wall
- pressure receiving
- 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
- Vibration Prevention Devices (AREA)
- Vibration Dampers (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、装置の外面から受
ける衝撃、振動を減ずるための吸振被覆に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vibration-absorbing coating for reducing shock and vibration received from the outer surface of a device.
【０００２】[0002]
【従来の技術】装置の機体壁の表面に流体による衝撃、
振動を受ける場合、装置内部への衝撃、振動の影響や機
体壁の損傷を防止するために、機体壁に吸振のための吸
振被覆を取り付ける場合がある。特に流体が水等の液体
で、液体中のキャビテーションの衝突等を受ける場合
は、その衝撃、振動の影響は大きく、十分な吸振と、被
覆自体の保護が可能な吸振被覆が求められる。2. Description of the Related Art The impact of fluid on the surface of the body wall of a device,
When receiving vibration, a vibration absorbing coating for absorbing vibration may be attached to the body wall in order to prevent the influence of the shock and vibration on the inside of the apparatus and damage to the body wall. In particular, when the fluid is a liquid such as water and is subjected to cavitation collisions in the liquid, the impact of the cavitation is large, and a vibration absorbing coating capable of sufficiently absorbing the vibration and protecting the coating itself is required.
【０００３】図２は、その一般的な例として、船舶のサ
イドスラスタにおける吸振被覆の取付け状態の説明図で
あり、船舶のサイドスラスタ取付け部の横断面を示す。[0003] Fig. 2 is an explanatory view showing, as a general example, a mounting state of a vibration absorbing coating on a side thruster of a ship, and shows a cross section of a side thruster mounting portion of the ship.
【０００４】図２に示すように、船舶のサイドスラスタ
１は船体２の左右舷を横切って貫通するトンネル部３の
中央に支脚４に支持され船体２の横方向に向けたプロペ
ラ５を有しており、プロペラ５は船体２内に搭載された
駆動モータ６により駆動軸７を介して回転駆動される。As shown in FIG. 2, a side thruster 1 of a ship has a propeller 5 supported by a supporting leg 4 in the center of a tunnel portion 3 penetrating across the port side of the hull 2 and directed in the lateral direction of the hull 2. The propeller 5 is rotationally driven via a drive shaft 7 by a drive motor 6 mounted in the hull 2.
【０００５】プロペラ５が回転されると、トンネル部３
内を船体２の横方向への水流が生じ、船体２は左右に向
けた推力を受けるのであるが、この時プロペラ５の回転
によって水中にキャビテーションが生じ、プロペラ５の
周囲のトンネル部３の壁面に衝突する。When the propeller 5 is rotated, the tunnel 3
A water current is generated in the horizontal direction of the hull 2, and the hull 2 receives a thrust toward the left and right. At this time, cavitation occurs in the water due to the rotation of the propeller 5, and the wall of the tunnel portion 3 around the propeller 5. Collide with
【０００６】キャビテーションは、船舶において推進用
のプロペラでも発生するが、サイドスラスタ１において
は、キャビテーションを発生するプロペラ５の至近距離
に衝突する機体壁としてトンネル壁０１１があるため、
その影響は甚大であり、船体内への振動伝播の防止、軽
減と、衝突とその衝撃、振動からの機体壁損傷の保護が
必須となる。[0006] Cavitation is also generated by a propeller for propulsion in a ship. However, in the side thruster 1, there is a tunnel wall 011 as an airframe wall which collides with a propeller 5 which generates cavitation at a short distance.
The effects are enormous, and it is essential to prevent and reduce the propagation of vibrations into the hull, and to protect the fuselage wall from damage due to collisions, impacts and vibrations.
【０００７】そこで図２中に示すように、サイドスラス
タ１のプロペラ５の周りのトンネル壁０１１には吸振被
覆０１０が取り付けられている。Therefore, as shown in FIG. 2, a vibration absorbing coating 010 is attached to a tunnel wall 011 around the propeller 5 of the side thruster 1.
【０００８】従来の吸振被覆０１０の例を説明すると、
図２中Ａ−Ａ矢視断面を示す図３に示すように、トンネ
ル部３のトンネル壁０１１に沿って、周方向に複数に分
割された吸振被覆セグメント０１２で形成され、各吸振
被覆セグメント０１２は複数のボルト０１３によって、
トンネル壁０１１側に溶接されたナット０１４に締結さ
れている。An example of a conventional vibration absorbing coating 010 will be described.
As shown in FIG. 3 showing a cross section taken along the line AA in FIG. 2, along the tunnel wall 011 of the tunnel portion 3, the vibration absorbing coating segments 012 divided into a plurality in the circumferential direction are formed. Is by a plurality of bolts 013
It is fastened to a nut 014 welded to the tunnel wall 011 side.
【０００９】各吸振被覆セグメント０１２は、図３中Ｂ
部の拡大図である図４に示すように、トンネル壁０１１
の内周の曲面に沿って覆う形状に形成された鋼製の受圧
板０１２ａのトンネル壁０１１側に、受圧板０１２ａか
ら順に間隔をおいて３段に帯板０１２ｂ、０１２ｃ、０
１２ｄを介在させ、それらを包み込んで一体に形成され
た吸振ゴム材０１２ｅの層を備え、複数の要所で、トン
ネル壁０１１に溶接されたナット０１４にボルト０１３
で締結されている。Each of the vibration-absorbing coating segments 012 is denoted by B in FIG.
As shown in an enlarged view of FIG.
On the side of the tunnel wall 011 of the steel pressure receiving plate 012a formed so as to cover along the inner circumferential curved surface of the steel plate, the band plates 012b, 012c, 0 are arranged in three stages at intervals from the pressure receiving plate 012a.
12d, a layer of vibration-absorbing rubber material 012e is formed integrally by wrapping them, and bolts 013 are attached to nuts 014 welded to the tunnel wall 011 at a plurality of points.
Has been concluded.
【００１０】吸振被覆セグメント０１２の構造を、図４
中Ｃ−Ｃ矢視断面を示す図５に基づきさらに説明する。
なお図５は、図２中Ｄ部拡大断面図となる。The structure of the vibration absorbing covering segment 012 is shown in FIG.
This will be further described with reference to FIG.
FIG. 5 is an enlarged sectional view of a portion D in FIG.
【００１１】図５に示されるように、受圧板０１２ａに
はトンネル壁０１１側に向けて支柱０１２ｆが溶接で固
定され、支柱０１２ｆの先端にはボルト０１２ｇの雌ね
じが設けられ、吸振被覆セグメント０１２の厚さ方向に
おける中央の帯板０１２ｃがボルト０１２ｇにより締結
されている。As shown in FIG. 5, a support 012f is fixed to the pressure receiving plate 012a by welding toward the tunnel wall 011, and a female screw of a bolt 012g is provided at the tip of the support 012f. The central band plate 012c in the thickness direction is fastened by bolts 012g.
【００１２】隣合う帯板０１２ｃの間には上下の帯板０
１２ｂ、０１２ｄがスペーサ０１２ｈを挟み間隔を開け
て帯板０１２ｃと縁部が重なるように配置され、上下の
帯板０１２ｂ、０１２ｄとスペーサ０１２ｈにはボルト
０１３のボルト穴０１２ｉが開けられ、ボルト穴０１２
ｉの位置は、トンネル壁０１１に溶接されたナット０１
４と一致させている。The upper and lower strips 0 are located between adjacent strips 012c.
12b and 012d are arranged so that the edges overlap with the band plate 012c with the spacer 012h interposed therebetween, and the upper and lower band plates 012b and 012d and the spacer 012h are provided with bolt holes 012i of bolts 012 and bolt holes 012.
The position of i is the nut 01 welded to the tunnel wall 011
4 is matched.
【００１３】吸振ゴム材０１２ｅの層は、受圧板０１２
ａのトンネル壁０１１側の面、支柱０１２ｆ、ボルト０
１２ｇ、帯板０１２ｂ、０１２ｃ、０１２ｄ、スペーサ
０１２ｈを包み込んで一体に、トンネル壁０１１に取り
付ける一定厚さの層となるように鋳込まれて形成され
る。The layer of the vibration-absorbing rubber material 012e is
a surface on the side of the tunnel wall 011, support 012 f, bolt 0
12g, the band plates 012b, 012c, 012d, and the spacer 012h are wrapped around and integrally cast to form a layer having a constant thickness to be attached to the tunnel wall 011.
【００１４】なお、吸振ゴム材０１２ｅの層には、帯板
０１２ｄのスペーサ０１２ｈと反対側にナット０１４を
かわす取付け穴０１２ｊが設けられ、帯板０１２ｂのス
ペーサ０１２ｈと反対側にはボルト０１３の頭部が通る
取付け穴０１２ｋが設けられ、受圧板０１２ａにも取付
け穴０１２ｋに合わせて取付け穴０１２ｌが設けられ、
取付け穴０１２ｌには蓋０１２ｍが取外し可能に取り付
けられている。The layer of the vibration-absorbing rubber material 012e is provided with a mounting hole 012j on the side opposite to the spacer 012h of the band plate 012d, and the head of a bolt 013 on the side of the band plate 012b opposite to the spacer 012h. A mounting hole 012k through which the portion passes is provided, and a pressure receiving plate 012a is also provided with a mounting hole 012l in accordance with the mounting hole 012k.
A lid 012m is detachably attached to the attachment hole 012l.
【００１５】以上のように予め形成された吸振被覆セグ
メント０１２は、トンネル壁０１１のナット０１４とス
ペーサ０１２ｈのボルト穴０１２ｉとが一致するよう
に、トンネル壁０１１上にセットされ、ボルト０１３を
取付け穴０１２ｌ、０１２ｋ、ボルト穴０１２ｉを通し
ナット０１４に締結して、トンネル壁０１１上に固定さ
れる。そののち受圧板０１２ａの取付け穴０１２ｌには
蓋０１２ｍが取り付けられる。The vibration absorbing covering segment 012 formed in advance as described above is set on the tunnel wall 011 so that the nut 014 of the tunnel wall 011 and the bolt hole 012i of the spacer 012h coincide with each other. 012l, 012k, and bolt holes 012i, and are fastened to the nut 014 and fixed on the tunnel wall 011. After that, a lid 012m is attached to the attachment hole 012l of the pressure receiving plate 012a.
【００１６】複数の吸振被覆セグメント０１２が全周に
わたって取付けられると、プロペラ５の周囲のトンネル
壁０１１に吸振被覆０１０が備えられることとなる。な
お、通常吸振被覆セグメント０１２はトンネル壁０１１
に取り付けた状態で図５に示すように互いの表面が段差
なく連続するように取り付けられる。When the plurality of vibration-absorbing coating segments 012 are attached over the entire circumference, the vibration-absorbing coating 010 is provided on the tunnel wall 011 around the propeller 5. In addition, the vibration absorption coating segment 012 is usually a tunnel wall 011.
5 in such a state that the surfaces are continuous with each other without a step.
【００１７】以上の吸振被覆０１０においては、水中の
キャビテーション等による衝撃や振動は、先ず受圧板０
１２ａおよび蓋０１２ｍで受け止められるので柔らかい
吸振材である吸振ゴム材０１２ｅが損傷から保護され
る。In the above-described vibration absorbing coating 010, shocks and vibrations due to cavitation and the like in water are first applied to the pressure receiving plate 0.
Since it is received by 12a and the lid 012m, the vibration absorbing rubber member 012e, which is a soft vibration absorbing member, is protected from damage.
【００１８】また、受圧板０１２ａはその面と帯板０１
２ｃを介して吸振ゴム材０１２ｅの層と一体化され、吸
振ゴム材０１２ｅの層はトンネル壁０１１に固定された
ボルト０１３に取り付けられた帯板０１２ｂ、０１２ｄ
とも一体化されているが、帯板０１２ｃと帯板０１２
ｂ、０１２ｄとは直接接触せず吸振ゴム材０１２ｅを介
して配置されているので、受圧板０１２ａが受けた振
動、衝撃は吸振ゴム材０１２ｅに吸収され、直接ボルト
０１３、トンネル壁０１１には伝わらない。The pressure receiving plate 012a has its surface and the band plate 01.
2c is integrated with the layer of the vibration-absorbing rubber material 012e, and the layer of the vibration-absorbing rubber material 012e is attached to the strips 012b and 012d attached to the bolts 013 fixed to the tunnel wall 011.
Are integrated with the band plate 012c and the band plate 012.
b and 012d are not directly in contact with each other, and are disposed via the vibration absorbing rubber member 012e. Therefore, the vibration and shock received by the pressure receiving plate 012a are absorbed by the vibration absorbing rubber member 012e and transmitted directly to the bolt 013 and the tunnel wall 011. Absent.
【００１９】[0019]
【発明が解決しようとする課題】上記のような従来の吸
振被覆構造においては、吸振被覆セグメント０１２の裏
面でナット０１４が溶接されボルト締結されているの
で、吸振被覆セグメント０１２とトンネル壁０１１との
隙間から水が徐々に浸入し、ナットの溶接部周辺の腐食
が知らずに進行するおそれがあること、吸振被覆セグメ
ント０１２を取り付けるためトンネル壁０１１にナット
０１４を溶接し、ボルト０１３で締結しているため、複
数のナット０１４とボルト０１３の位置を合わせなけれ
ばならず取付けが困難なこと、そして吸振被覆セグメン
ト０１２自体の構造が受圧板０１２ａ、支柱０１２ｆ、
複数の帯板０１２ｂ、０１２ｃ、０１２ｄ、スペーサ０
１２ｈ等を吸振ゴム材０１２ｅの層の中に的確な位置関
係で一体成形しなければならない製造の困難さがあるこ
と、ボルト０１３締結、蓋０１２ｍ取付け等、部品点
数、取付け工数が多大であること、等問題が多く、その
ためコスト上の増加要因ともなっていた。In the above-described conventional vibration-absorbing coating structure, since the nut 014 is welded and bolted on the back surface of the vibration-absorbing coating segment 012, the connection between the vibration-absorbing coating segment 012 and the tunnel wall 011 is made. Water gradually penetrates from the gap, and there is a possibility that corrosion around the welded portion of the nut may proceed unknowingly. The nut 014 is welded to the tunnel wall 011 to attach the vibration absorbing covering segment 012 and fastened with the bolt 013. Therefore, the positions of the plurality of nuts 014 and the bolts 013 must be aligned, which makes installation difficult.
Plural band plates 012b, 012c, 012d, spacer 0
12h etc. must be integrally molded in the layer of the vibration-absorbing rubber material 012e in a precise positional relationship, and there are difficulties in manufacturing, and the number of parts and the number of mounting steps, such as bolt 013 fastening and lid 012m mounting, are large. , Etc., which are factors that increase costs.
【００２０】本発明はかかる従来の吸振被覆の問題を解
消し、締結用のナットの溶接部の腐食のおそれはなく、
製作、取付けが容易で部品点数、取付け工数等が低減す
る吸振被覆を提供することを課題とするものである。The present invention solves the problem of the conventional vibration-absorbing coating and eliminates the possibility of corrosion of the welded portion of the fastening nut.
An object of the present invention is to provide a vibration-absorbing coating that can be easily manufactured and mounted, and reduces the number of parts and the number of mounting steps.
【００２１】[0021]
【課題を解決するための手段】（１）本発明は、上記の
課題を解決するためになされたものであって、その第１
の手段として、機体壁を覆う形状に形成された受圧板、
同受圧板に同機体壁へ向けて固定された支柱、同支柱の
先端に取りつけられた帯板、前記受圧板の前記機体壁側
の面と前記支柱と前記帯板とを包み込んで一体に形成さ
れた吸振弾性材の層を備え、同吸振弾性材の層の前記機
体壁側の面を同機体壁に当接させて同吸振弾性材の層の
縁部を前記機体壁に固定される吸振被覆セグメントを、
同機体壁に装着してなることを特徴とする吸振被覆を提
供する。Means for Solving the Problems (1) The present invention has been made to solve the above-mentioned problems, and the
Pressure receiving plate formed in a shape covering the body wall,
A strut fixed to the pressure receiving plate toward the fuselage wall, a band plate attached to the tip of the strut, a surface of the pressure receiving plate on the body wall side, the support and the band plate are wrapped and integrally formed. A vibration-absorbing elastic material layer, wherein the surface of the layer of the vibration-absorbing elastic material on the side of the body wall is in contact with the body wall, and the edge of the layer of the vibration-absorbing elastic material is fixed to the body wall. The covering segment
Provided is a vibration-absorbing coating that is mounted on the airframe wall.
【００２２】第１の手段の吸振被覆によれば、受圧板に
より吸振弾性材が損傷から保護され、受圧板が受けた衝
撃、振動は吸振弾性材に吸収され、直接機体壁には伝わ
らなことに加え、締結のため吸振被覆セグメントの裏面
に溶接したナットの溶接部周辺が知らずに腐食を進行さ
せるおそれがなく、その構造は極めて簡潔となり、取付
けにおいても吸振弾性材の層の縁部を機体壁に固定すれ
ばよい。According to the vibration absorbing coating of the first means, the vibration absorbing elastic material is protected from damage by the pressure receiving plate, and the shock and vibration received by the pressure receiving plate are absorbed by the vibration absorbing elastic material and are not transmitted directly to the body wall. In addition to this, there is no danger of the corrosion around the welded part of the nut welded to the back of the vibration absorbing covering segment for fastening, and the structure is extremely simple, and the edge of the layer of the vibration absorbing elastic material is attached to the body even during installation. What is necessary is just to fix to a wall.
【００２３】（２）第２の手段としては、第１の手段の
吸振被覆において、前記機体壁が船舶のサイドスラスタ
のトンネル壁であることを特徴とする吸振被覆を提供す
る。(2) As a second means, there is provided the vibration-absorbing coating according to the first means, wherein the body wall is a tunnel wall of a side thruster of a ship.
【００２４】第２の手段の吸振被覆によれば、第１の手
段の作用に加え、特に狭隘なトンネル部内面に設けるも
のであり、製作の容易さのみならず、装着の容易さ、メ
ンテナンスの容易さ、海水の腐食性に対する耐久性が求
められる船舶のサイドスラスタのトンネル壁面において
その特徴が効果的に発揮される。According to the vibration-absorbing coating of the second means, in addition to the function of the first means, it is provided especially on the inner surface of the narrow tunnel portion. The characteristics are effectively exerted on the tunnel wall surface of a side thruster of a ship that requires easiness and durability against the corrosiveness of seawater.
【００２５】[0025]
【発明の実施の形態】本発明の実施の一形態に係る吸振
被覆を図１に基づいて説明する。図１は前述の従来例を
説明した図５と同じ位置での本実施の形態の吸振被覆に
おける吸振被覆セグメントの断面図である。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A vibration absorbing coating according to an embodiment of the present invention will be described with reference to FIG. FIG. 1 is a cross-sectional view of a vibration absorbing coating segment in the vibration absorbing coating of the present embodiment at the same position as that of FIG.
【００２６】本実施の形態も、図２で説明したと同様の
船舶のサイドスラスタ１のプロペラ５の周りのトンネル
部３内壁に装着された吸振被覆である。This embodiment is also a vibration-absorbing coating mounted on the inner wall of the tunnel portion 3 around the propeller 5 of the side thruster 1 of a ship similar to that described in FIG.
【００２７】したがって、個々の吸振被覆セグメントの
構造とその取付け方が異なる他は、前述の従来例の吸振
被覆と同様に用いられるので、同じ部分には同符号を付
して図２ないし図３を参照し説明を省略し、異なる点を
中心に以下説明する。Therefore, except that the structure of the individual vibration absorbing coating segments and the manner of attaching them are different, they are used in the same manner as the above-described conventional vibration absorbing coating. , Description thereof will be omitted, and different points will be mainly described below.
【００２８】本実施の形態においても吸振被覆１０の吸
振被覆セグメント１２は、図３のトンネル壁０１１に設
けられる吸振被覆０１０の吸振被覆セグメント０１２と
同様に、複数がサイドスラスタ１のプロペラ５の周りの
機体壁としてのトンネル壁１１に装着されるが、その内
部構造と取付け構造は図５に示すとおりである。In this embodiment, as in the case of the vibration-absorbing coating segment 012 of the vibration-absorbing coating 010 provided on the tunnel wall 011 shown in FIG. 3, a plurality of the vibration-absorbing coating segments 12 are provided around the propeller 5 of the side thruster 1. 5 is mounted on a tunnel wall 11 as an airframe wall, and its internal structure and mounting structure are as shown in FIG.
【００２９】すなわち、鋼製の受圧板１２ａは装着する
トンネル壁１１を覆う形状に形成され、トンネル壁１１
側に向けて支柱１２ｆが溶接で固定され、支柱１２ｆの
先端にはボルト１２ｇの雌ねじが設けられ、吸振被覆セ
グメント１２の厚さ方向で中央付近に帯板１２ｃがボル
ト１２ｇにより取り付けられている。That is, the steel pressure receiving plate 12a is formed in a shape to cover the tunnel wall 11 to be mounted.
The support 12f is fixed to the side by welding, and a female screw of a bolt 12g is provided at the tip of the support 12f. A band plate 12c is attached to the vibration absorbing covering segment 12 near the center in the thickness direction by the bolt 12g.
【００３０】受圧板１２ａのトンネル壁１１側には、吸
振ゴム材１２ｅの層が受圧板１２ａ、支柱１２ｆ、ボル
ト１２ｇ、帯板１２ｃを包み込んで一体に、トンネル壁
１１に取り付ける一定厚さになるように鋳込まれて形成
されている。On the side of the pressure receiving plate 12a on the side of the tunnel wall 11, a layer of a vibration absorbing rubber material 12e wraps the pressure receiving plate 12a, the support 12f, the bolt 12g, and the strip 12c, and has a constant thickness to be integrally attached to the tunnel wall 11. It is formed by casting.
【００３１】吸振被覆セグメント１２の吸振ゴム材１２
ｅの層のトンネル部３内側の周囲の縁部には、受圧板１
２ａがなく取付け用段部１２ｎが設けられた部分が形成
されており、図示のように例えば取付け用段部１２ｎに
おいて取付け用帯板１５でトンネル壁１１に押さえこま
れて固定され、互いの表面が段差なく連続するように取
り付けられる。The rubber material 12 of the vibration absorbing coating segment 12
e, a pressure receiving plate 1 is provided on an edge around the inside of the tunnel portion 3.
2a, there is formed a portion provided with a mounting step 12n. As shown, for example, the mounting step 12n is pressed down and fixed to the tunnel wall 11 by the mounting strip 15 at the mounting step 12n. Are attached so as to be continuous without any step.
【００３２】なお、取付け用帯板１５のトンネル壁１１
への固定は図示のボルト等適宜のものでよい。The tunnel wall 11 of the mounting strip 15
The fixing to the device may be performed by a bolt or the like as appropriate.
【００３３】吸振被覆セグメント１２の吸振ゴム材１２
ｅの層は、取り付けられた状態でトンネル壁１１側の面
がトンネル壁１１と当接する厚さとしてある。The vibration absorbing rubber material 12 of the vibration absorbing covering segment 12
The layer e has such a thickness that the surface on the side of the tunnel wall 11 abuts on the tunnel wall 11 in the attached state.
【００３４】以上のような本実施の形態の吸振被覆によ
れば、水中のキャビテーション等による衝撃や振動は、
先ず受圧板１２ａで受け止められるので柔らかい吸振材
である吸振ゴム材１２ｅが損傷から保護される。According to the above-described vibration-absorbing coating of the present embodiment, the impact and vibration due to cavitation and the like in water are reduced.
First, since it is received by the pressure receiving plate 12a, the vibration absorbing rubber member 12e, which is a soft vibration absorbing member, is protected from damage.
【００３５】また、受圧板１２ａはその面と帯板１２ｃ
を介して吸振ゴム材１２ｅの層と一体化されているが、
帯板１２ｃとトンネル壁１１とは直接接触せず吸振ゴム
材１２ｅを介して当接するように配置されているので、
受圧板１２ａが受けた衝撃、振動は吸振ゴム材１２ｅに
吸収され、直接トンネル壁１１には伝わらない構造とな
っている。The pressure receiving plate 12a has its surface and a band plate 12c.
Is integrated with the layer of the vibration absorbing rubber material 12e through
Since the band plate 12c and the tunnel wall 11 are arranged so as not to come into direct contact with each other but to be in contact with each other via the vibration absorbing rubber material 12e,
Impacts and vibrations received by the pressure receiving plate 12a are absorbed by the vibration absorbing rubber material 12e, and are not transmitted directly to the tunnel wall 11.
【００３６】また、吸振被覆セグメント１２をその裏面
で締結するものではないため、締結のため吸振被覆セグ
メント１２の裏面で溶接したナットの溶接部周辺が知ら
ずに腐食を進行させるおそれがなく、また、メンテナン
スが容易となる。Further, since the vibration-absorbing coating segment 12 is not fastened on the back surface thereof, there is no fear that the vicinity of the welded portion of the nut welded on the back surface of the vibration-absorbing coating segment 12 for the fastening may proceed without knowing. Maintenance becomes easy.
【００３７】さらに吸振被覆セグメント１２自体の構造
は、多段の帯板を交互に配置する必要がなく、受圧板側
に一段の帯板を取付けて吸振ゴム材１２ｅの層と一体化
するだけなので、構造が極めて簡潔となり吸振被覆セグ
メント１２の製作が容易となり、取付けにおいても吸振
被覆セグメント１２の吸振ゴム材１２ｅの層の縁部を取
付け用帯板１５でトンネル壁１１に固定すればよく、必
要な取付けボルト数は少なく、取付け穴の蓋等は不要と
なり、部品点数、取付け工数が低減でき、そのためコス
ト上の低減も図れる。Further, the structure of the vibration-absorbing covering segment 12 itself does not require alternately arranging multi-stage strips, but merely attaches a single-stage strip to the pressure receiving plate side and integrates with the layer of the vibration-absorbing rubber material 12e. The structure is extremely simple, and the manufacture of the vibration-absorbing covering segment 12 becomes easy. In mounting, the edge of the layer of the vibration-absorbing rubber material 12e of the vibration-absorbing covering segment 12 may be fixed to the tunnel wall 11 by the attaching strip 15 and the necessary The number of mounting bolts is small, and a cover for the mounting hole is not required, so that the number of components and the number of mounting steps can be reduced, and thus the cost can be reduced.
【００３８】なお、上記従来例、実施の形態はともに船
舶のサイドスラスタのトンネル部の壁面を保護するため
の吸振被覆を例に示したが、本発明の吸振被覆はそれに
限定されるものではなく、広く一般に流体からの衝撃、
振動を受ける装置の機体壁のための吸振被覆として実施
できるものであり、特に水等の液体のキャビテーション
の衝撃を受ける部分の吸振被覆として有効である。In the above-described conventional example and the embodiment, the vibration absorbing coating for protecting the wall surface of the tunnel portion of the side thruster of the ship is shown as an example. However, the vibration absorbing coating of the present invention is not limited to this. Impact from fluids, generally in general,
The present invention can be implemented as a vibration-absorbing coating for the body wall of a device that receives vibration, and is particularly effective as a vibration-absorbing coating for a portion that receives the impact of cavitation of a liquid such as water.
【００３９】勿論、特に実施の形態に示した船舶のサイ
ドスラスタのトンネル部の内壁の吸振被覆は、狭隘なト
ンネル部内面に設けるものであり、製作の容易さのみな
らず、装着の容易さ、メンテナンスの容易さ、海水の腐
食性に対する耐久性が求められるので、本実施の形態の
吸振被覆を備えたサイドスラスタにおいては、その吸振
被覆の特徴を効果的に発揮でき、サイドスラスタのコス
ト、運用上の効果も多大である。Of course, the vibration-absorbing coating on the inner wall of the tunnel portion of the side thruster of the ship shown in the embodiment is provided on the inner surface of the narrow tunnel portion. Since ease of maintenance and durability against the corrosiveness of seawater are required, the side thruster provided with the vibration absorbing coating according to the present embodiment can effectively exhibit the characteristics of the vibration absorbing coating, thereby reducing the cost and operation of the side thruster. The above effect is also great.
【００４０】以上、本発明の実施の形態を説明したが、
本発明は上記実施の形態に限定されるものではなく、本
発明の範囲内でその具体的構造に種々の変更を加えてよ
いことは言うまでもない。The embodiment of the present invention has been described above.
The present invention is not limited to the above embodiment, and it goes without saying that various changes may be made to the specific structure within the scope of the present invention.
【００４１】たとえば、吸振ゴム材１２ｅの層は受圧板
１２ａの一方の側において他の部材を包み込むように鋳
込まれて形成されたものに限られず、同様配置に形成さ
れるものであれば接着等で組み合わせ形成されたもので
あってもよい。受圧板１２ａ、帯板１２ｃ、支柱１２
ｆ、ボルト１２ｇは鋼製のみに限らず適宜の合金、硬質
樹脂材等によるものであってもよく、吸振ゴム材１２ｅ
はゴム材に限らず、適宜の合成ゴム材、弾性樹脂材等の
吸振弾性材であってもよい。For example, the layer of the vibration-absorbing rubber material 12e is not limited to a layer formed by casting one side of the pressure-receiving plate 12a so as to enclose another member. And the like. Pressure receiving plate 12a, band plate 12c, strut 12
f, the bolt 12g is not limited to steel and may be made of an appropriate alloy, a hard resin material, or the like.
Is not limited to a rubber material, but may be a vibration-absorbing elastic material such as an appropriate synthetic rubber material or elastic resin material.
【００４２】[0042]
【発明の効果】（１）請求項１の発明によれば、吸振被
覆を、機体壁を覆う形状に形成された受圧板、同受圧板
に同機体壁へ向けて固定された支柱、同支柱の先端に取
りつけられた帯板、前記受圧板の前記機体壁側の面と前
記支柱と前記帯板とを包み込んで一体に形成された吸振
弾性材の層を備え、同吸振弾性材の層の前記機体壁側の
面を同機体壁に当接させて同吸振弾性材の層の縁部を前
記機体壁に固定される吸振被覆セグメントを、同機体壁
に装着してなるように構成したので、受圧板により吸振
弾性材が損傷から保護され、受圧板が受けた衝撃、振動
は吸振弾性材に吸収され、直接機体壁には伝わらなこと
に加え、締結のため吸振被覆セグメントの裏面に溶接し
たナットの溶接部周辺が知らずに腐食を進行させるおそ
れがなく、メンテナンスが容易であり、その構造は極め
て簡潔となって製作が容易となり、取付けにおいても吸
振弾性材の層の縁部を機体壁に固定すればよく、部品点
数、取付け工数が低減でき、そのためコスト上の低減も
図れる。(1) According to the first aspect of the present invention, the pressure-absorbing plate is formed so as to cover the body wall with the vibration-absorbing coating, the column fixed to the pressure-receiving plate toward the body wall, and the column. A band plate attached to the tip of the pressure receiving plate, a layer of the vibration absorbing elastic material integrally formed by wrapping around the body wall side surface of the pressure receiving plate, the strut, and the band plate. Since the surface of the airframe wall side is in contact with the airframe wall and the edge of the layer of the vibration-absorbing elastic material is fixed to the airframe wall, the vibration-absorbing coating segment is configured to be attached to the airframe wall. The pressure-receiving plate protects the vibration-absorbing elastic material from damage, and the shock and vibration received by the pressure-receiving plate are absorbed by the vibration-absorbing elastic material and are not directly transmitted to the body wall. There is no risk of corrosion progressing around the welded part of the The structure is extremely simple and the production is easy, and the edge of the layer of the vibration-absorbing elastic material can be fixed to the fuselage wall in the installation, reducing the number of parts and the number of installation steps, thereby reducing the cost. The above reduction can also be achieved.
【００４３】（２）請求項２の発明によれば、請求項１
に記載の吸振被覆において、前記機体壁が船舶のサイド
スラスタのトンネル壁であるように構成したので、請求
項１の発明の効果に加え、特に狭隘なトンネル部内面に
設けるものであり、製作の容易さのみならず、装着の容
易さ、メンテナンスの容易さ、海水の腐食性に対する耐
久性が求められる船舶のサイドスラスタのトンネル壁面
の吸振被覆として、その特徴を効果的に奏すことがで
き、サイドスラスタのコスト、運用上においても効果が
多大である。(2) According to the invention of claim 2, claim 1
In the vibration-absorbing coating described in (1), since the body wall is configured to be a tunnel wall of a side thruster of a ship, in addition to the effect of the invention of claim 1, it is provided particularly on the inner surface of a narrow tunnel portion. As a vibration-absorbing coating on the tunnel wall of a ship's side thruster, which requires not only easiness but also easy installation, easy maintenance, and durability against seawater corrosion, it can effectively exhibit its characteristics. The thruster is also very effective in terms of cost and operation.
【図１】本発明の実施の一形態に係る吸振被覆構造の説
明図であり、従来例の説明図の図５と同じ位置での本実
施の形態の吸振被覆構造における吸振被覆セグメントの
断面図である。FIG. 1 is an explanatory view of a vibration absorbing and covering structure according to an embodiment of the present invention, and is a cross-sectional view of a vibration absorbing and covering segment in the vibration absorbing and covering structure of the present embodiment at the same position as FIG. It is.
【図２】一般的な船舶のサイドスラスタにおける吸振被
覆取付け状態の説明図であり、船舶のサイドスラスタ取
付け部の横断面である。FIG. 2 is an explanatory view of a state in which a vibration absorbing coating is mounted on a side thruster of a general ship, and is a cross-sectional view of a side thruster mounting portion of the ship.
【図３】従来の吸振被覆構造の説明図であり、図２中Ａ
−Ａ矢視断面図である。FIG. 3 is an explanatory view of a conventional vibration-absorbing coating structure; FIG.
It is sectional drawing in the -A arrow direction.
【図４】図３中、Ｂ部の拡大図である。FIG. 4 is an enlarged view of a portion B in FIG.
【図５】図４中Ｃ−Ｃ矢視断面図であり、図２中Ｄ部拡
大断面図である。5 is a cross-sectional view taken along a line CC in FIG. 4 and an enlarged cross-sectional view of a portion D in FIG. 2;
１ サイドスラスタ ２ 船体 ３ トンネル部 ４ 支脚 ５ プロペラ １０ 吸振被覆 １１ トンネル壁 １２ 吸振被覆セグメント １２ａ 受圧板 １２ｃ 帯板 １２ｅ 吸振ゴム材 １２ｆ 支柱 １２ｇ ボルト １２ｎ 取付け用段部 １５ 取付け用帯板 DESCRIPTION OF SYMBOLS 1 Side thruster 2 Hull 3 Tunnel part 4 Support leg 5 Propeller 10 Vibration absorbing covering 11 Tunnel wall 12 Vibration absorbing covering segment 12a Pressure receiving plate 12c Strip 12e Vibration absorbing rubber material 12f Strut 12g Bolt 12n Mounting step 15 Mounting strip
Claims (2)
同受圧板に同機体壁へ向けて固定された支柱、同支柱の
先端に取りつけられた帯板、前記受圧板の前記機体壁側
の面と前記支柱と前記帯板とを包み込んで一体に形成さ
れた吸振弾性材の層を備え、同吸振弾性材の層の前記機
体壁側の面を同機体壁に当接させて同吸振弾性材の層の
縁部を前記機体壁に固定される吸振被覆セグメントを、
同機体壁に装着してなることを特徴とする吸振被覆。A pressure receiving plate formed in a shape covering a body wall;
A strut fixed to the pressure receiving plate toward the fuselage wall, a band plate attached to the tip of the strut, a surface of the pressure receiving plate on the body wall side, the support and the band plate are wrapped and integrally formed. A vibration-absorbing elastic material layer, wherein the surface of the layer of the vibration-absorbing elastic material on the side of the body wall is in contact with the body wall, and the edge of the layer of the vibration-absorbing elastic material is fixed to the body wall. The covering segment
A vibration-absorbing coating that is mounted on the airframe wall.
記機体壁が船舶のサイドスラスタのトンネル壁であるこ
とを特徴とする吸振被覆。2. The vibration absorbing coating according to claim 1, wherein the body wall is a tunnel wall of a side thruster of a ship.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001046894A JP2002250398A (en) | 2001-02-22 | 2001-02-22 | Vibration damping cover |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001046894A JP2002250398A (en) | 2001-02-22 | 2001-02-22 | Vibration damping cover |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2002250398A true JP2002250398A (en) | 2002-09-06 |
Family
ID=18908432
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2001046894A Pending JP2002250398A (en) | 2001-02-22 | 2001-02-22 | Vibration damping cover |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2002250398A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104695974A (en) * | 2015-03-06 | 2015-06-10 | 北京城建设计发展集团股份有限公司 | Shock absorbing method and structure for rail traffic underground engineering |
| CN114183165A (en) * | 2021-11-26 | 2022-03-15 | 东南大学 | Elastic composite duct piece for special vibration reduction section |
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| CN114183165A (en) * | 2021-11-26 | 2022-03-15 | 东南大学 | Elastic composite duct piece for special vibration reduction section |
| CN114183165B (en) * | 2021-11-26 | 2024-05-14 | 东南大学 | Elastic composite duct piece for special vibration reduction section |
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