JP3990610B2

JP3990610B2 - Engine support device

Info

Publication number: JP3990610B2
Application number: JP2002240888A
Authority: JP
Inventors: 郁也井上; 正人西野
Original assignee: Yanmar Co Ltd
Current assignee: Yanmar Co Ltd
Priority date: 2002-08-21
Filing date: 2002-08-21
Publication date: 2007-10-17
Anticipated expiration: 2022-08-21
Also published as: JP2004076902A

Description

【０００１】
【発明の属する技術分野】
本発明は、内燃機関（エンジン）において、振動や騒音を抑制すべく設置する技術に関し、詳細には据付部材を介して支持する内燃機関の支持装置の技術に関する。
【０００２】
【従来の技術】
従来、小型船等の内燃機関のエンジンの支持装置においては、機体の振動を抑制するための技術として、ゴム等の弾性部材をエンジンの支持部に用いる方式が主流となっている（例えば、特許文献１参照。）。また、エンジン本体を機関からの片持ち支持によって支持し、支持部がそれぞれ個別に独立した構成となっていた。
【０００３】
（特許文献１）
特開平７−２１５２９５号公報
【０００４】
【発明が解決しようとする課題】
しかし、ギヤケースに取付脚を接続するエンジンに、従来のエンジン支持装置を用いた場合、エンジンに燃料噴射ポンプ用の駆動ギヤを配設し、このギヤを覆うギヤケースに取付脚を接続する必要があり、前記取付脚用のスペースを側方にとり、エンジンの取付幅が広くなっていた。また、該取付脚がギヤケース中心よりも低く位置していた。このため、取付状態におけるエンジンの共振回転数が変化し、エンジンのアイドル回転数を上げる必要性が生じる。これにより、エンジンの騒音および振動を抑制して、燃費を向上させることが困難であった。
【０００５】
また、取付脚をエンジンに取付ける片持ち支持構造をとるので、エンジンを配設する場合には、配設される舟艇等の配置構成に、個別に対応して取付脚を構成する必要があり、メンテナンス時や組立時の作業に労力を必要とする。そこで、本発明では上記のような課題を解消すべく、エンジンの防音性、防振性、燃費およびメンテナンス時や組立時の作業性を向上したエンジンの支持装置を提供する。
【０００６】
【課題を解決するための手段】
本発明の解決しようとする課題は以上の如くであり、次にこの課題を解決するための手段を説明する。
【０００７】
請求項１においては、エンジン（１）を構成するシリンダブロック（２）の一側に、動力取出用伝動ケース（１１）を付設し、該動力取出用伝動ケース（１１）の外側面に螺子を介して据付部材（２０）を取り付け、該据付部材（２０）は、本体部（２０ａ）と梁（２０ｄ）と取付部（２０ｅ）とから成る正面視で略面取した菱形とし、本体部（２０ａ）の中央に、円状の孔である動力取出口（２０ｃ）を形成し、更に本体部（２０ａ）の左右側面の取付部（２０）に据付脚（２２）を取付け、据付脚（２２）により、機体底面から立設された支持部（２１）に支持する支持装置において、該据付部材（２０）に前部駆動装置（２９）の取付座（３０）を設け、該取付座（３０）にはクランク軸（３）が挿通され、該クランク軸（３）を前記動力取出口（２０ｃ）の略中心となるように、取付座（３０）を据付部材（２０）に螺子で固定し、前記据付部材（２０）に補機取付部（３１）を設け、該クランク軸（３）上の反エンジン側には駆動部（３６）を軸支し、該駆動部（３６）と補機取付部（３１）に取付けた補機（３５）との間を、ベルトより成る連結部材（３２）を介して連動したものである。
【０００８】
請求項２においては、請求項１記載のエンジンの支持装置において、該補機取付部（３１）の反エンジン側に、前記該駆動部（３６）と補機（３５）とを被覆するカバー（３３）を、据付部材（２０）上下面に螺子より成る固定部材（３４）によって締め付け固定したものである。
【０００９】
請求項３においては、請求項１記載のエンジンの支持装置において、前記動力取出用伝動ケース（１１）を舶用減速逆転機用としたものである。
【００１０】
【発明の実施の形態】
次に、発明の実施の形態を説明する。
【００１１】
図１は本発明に係るエンジンの全体構成を示す正面図、図２は同じく側面図、図３はエンジン支持装置の正面図、図４はエンジン支持装置の一実施形態を示す正面図、図５は同じく部分側面断面図、図６はエンジン支持装置の一実施形態を示す正面図、図７はエンジン支持装置の一実施形態を示す側面図である。
【００１２】
まず、図１及び図２を用いてエンジンの全体構成から説明する。エンジン（内燃機関）１は複数のピストンを収納したシリンダとクランクケースからなるシリンダブロック２にクランク軸３が軸支され、エンジン１の駆動力は該クランク軸３の一端より減速ギヤケース６内に伝達される。該減速ギヤケース６内に伝達された駆動力は、図示しない減速装置により減速されて出力軸７に伝達される。エンジン１は、シリンダブロック２下部をオイルパン４により覆い、該オイルパン４内に潤滑油を貯溜する。また、前記シリンダブロック２の上部をシリンダヘッド５により覆い、その上方に弁腕室８が配置し、該弁腕室８上に更に過給機９を配置し、該弁腕室８の一端に熱交換器（クーラー）１０を配置している。
【００１３】
そして、前記シリンダブロック２の一側にギヤケース（動力取出用伝動ケース）１１を付設して、カムギヤやポンプ駆動ギヤ等を収納している。該ギヤケース１１上にオイルミストセパレータ１２が配置され、該オイルミストセパレータ１２により分離された潤滑油をオイルパン４に戻すための潤滑油戻し管１３が連通され、該潤滑油戻し管１３の下端が油戻し装置１４に連通されている。
【００１４】
ここで、本発明の要部であるエンジン１の支持装置について図１及び図３を用いて説明する。前記エンジン１は、ギヤケース１１に螺子等で固着された据付部材２０の両端部に設けられた支持装置によって、機体底面から立設された支持部２１・２１により支持される。前記据付部材２０は、本体部２０ａと梁２０ｄと取付部２０ｅとから成り、正面視略面取した菱形である。本体部２０ａの中央には円状の孔である動力取出口２０ｃが形成され、補強用の梁２０ｄは本体部２０ａの上下縁部に形成されている。梁２０ｄは本体部２０ａより前方に延出した構成となっており、据付部材２０の剛性を向上させるものである。そして、本体部２０ａの左右側面には据付脚２２を取付けるための取付部２０ｅが設けられている。前記据付部材２０の前記クランク軸３方向と略直角する方向の両端には、正面視略Ｌ字形状の前記据付脚２２が垂直部２２ｂを前記取付部２０ｅにボルト２４によって締め付け固定することによって螺着される。また、前記据付脚２２には強度を補うための正面視略三角形の補強プレート２５が架設されている。前記据付脚２２の水平部２２ａには防振支持部２６が、該防振支持部２６に固設された支柱２７を挿通しナット２８で高さ調節可能に螺着されている。
【００１５】
このように、前記ギヤケース１１に前記据付部材２０を設けることによってエンジン１を支持する方法を採用すると、ギヤケース１１と据付部材２０との接続面積を大きくとることができ、接続部における剛性が向上し、エンジン１の支持剛性が向上する。そして、ギヤケース１１と据付部材２０とを接続する結束具の装着個数を増大でき、耐久性を容易に向上できる。さらに、据付幅を据付部材２０の幅により調節可能であり、据付幅を構造上可能な範囲内まで狭くすることができる。また、エンジン１の支持部をクランク軸３よりも上方に位置させることができるので、エンジン１の重心が高くなるのを防げ、延いては該エンジン１を搭載する機体の安定性の向上にもつながる。さらに、前記据付部材２０がエンジン１の前部動力取出部の補強部材を兼ねることができ、前部動力取出部の剛性が向上する。
【００１６】
次に、本発明の一実施形態を図４及び図５を用いて説明する。前記据付部材２０には、前部駆動装置２９の取付座３０が設けられている。該取付座３０は正面視略円状、側面断面視略コ字形状の中空部材である。該取付座３０にはクランク軸３が挿通され、該クランク軸３を中心として前記据付部材２０の略中央に螺子等で固定されている。つまり、前記据付部材２０に設けられた前記取付座３０を介して、前部駆動装置２９が取り付けられている。このように該取付座３０を設けた構造にすることによって、エンジン駆動部の補強を行うと共に駆動ケースとの兼用が可能となり、前部駆動装置２９等の設置性、耐久性の向上を図ることができる。また、据付部材２０に前部駆動装置２９の取付座３０を取付けるため、据付部材２０によりエンジンの駆動構成に対応可能となる。
【００１７】
また、図６に示すように、前記据付部材２０に補機取付部３１を設けることもできる。該補機取付部３１には操舵用の油圧ポンプや発電機、または水ポンプ等の補機３５が取り付けられる構造になっている。そして、該補機３５は、クランク軸３上の反エンジン側に軸支された駆動部からギヤやプーリ等の動力伝達装置によって取り出された回転駆動力を動力源として駆動する。このように、据付部材２０に補機取付部３１を設けることにより、別途に補機取付用のステー等を設ける必要もなくなり、該据付部材２０を補機３５を取付ける際のステーとして兼用することができる。よって、エンジン１近傍における省スペース化や省コスト化、または組立て時の工程の簡略化を実現できる。また、補機３５の取り付けや取り外しが容易となり、メンテナンス時等の作業性を向上することができる。また、前記補機取付部３１は、取付ける補機３５によって構造を選ばないように構成することもでき、そうすることにより補機取付部３１と補機との互換性に優れ、機体毎または作業時毎に必要とする補機３５を取付けることが可能となっている。さらには取付ける補機の規格化やシリーズ化を図ることができる。
【００１８】
次に、本発明の一実施形態を図７を用いて説明する。前記補機取付部３１には補機が取り付けられるが、据付部材２０の前部、つまりクランク軸３上の反エンジン側には駆動部３６が軸支されており、該駆動部３６と補機３５とはベルト等の連結部材３２を介して連動おり、該駆動部３６と補機３５が露出された状態となる。そこで、該駆動部３６と補機３５を覆うカバー３３を、据付部材２０の本体部２０ａの上下面に螺子等の固定部材３４によって締め付け固定されている。該カバー３３は合成樹脂等の素材で構成され、強度性、耐久性に優れたものとなっている。尚、該カバー３３の形状は、前記駆動部３６と補機３５を覆うことができ、エンジン本来の機能に支障がなければ限定されるものではない。このように前記据付部材２０に駆動部３６と補機３５を覆うカバー３３を取付けることによりエンジン１付近での作業時において、可動部と接触するおそれがなく、安全性の向上が図れる。
【００１９】
また、前記ギヤケース１１と前記据付部材２０が別体に形成されており、該据付部材２０を介して支持するエンジンの支持装置においては、該ギヤケース１１を船用減速逆転機用とすることもできる。つまり、上述した発明は、ギヤケース１１側についてのものであるが、これらを船用減速逆転機側、すなわち図２に示す減速ギヤケース６側にも適用可能である。そうすることにより、エンジン１の支持の自由度を向上することができるので、エンジン１を載置する位置の自由度が向上し、エンジン１の複雑な構成部分においても支持可能となる。また、前記ギヤケース１１と減速ギヤケース６の剛性も向上することができ、よりエンジン駆動部周辺の耐久性が向上する。
【００２０】
【発明の効果】
本発明は、以上のように構成したので、以下に示すような効果を奏する。
【００２１】
請求項１に示す如く、請求項１においては、エンジン（１）を構成するシリンダブロック（２）の一側に、動力取出用伝動ケース（１１）を付設し、該動力取出用伝動ケース（１１）の外側面に螺子を介して据付部材（２０）を取り付け、該据付部材（２０）は、本体部（２０ａ）と梁（２０ｄ）と取付部（２０ｅ）とから成る正面視で略面取した菱形とし、本体部（２０ａ）の中央に、円状の孔である動力取出口（２０ｃ）を形成し、更に本体部（２０ａ）の左右側面の取付部（２０）に据付脚（２２）を取付け、据付脚（２２）により、機体底面から立設された支持部（２１）に支持する支持装置において、該据付部材（２０）に前部駆動装置（２９）の取付座（３０）を設け、該取付座（３０）にはクランク軸（３）が挿通され、該クランク軸（３）を前記動力取出口（２０ｃ）の略中心となるように、取付座（３０）を据付部材（２０）に螺子で固定し、前記据付部材（２０）に補機取付部（３１）を設け、該クランク軸（３）上の反エンジン側には駆動部（３６）を軸支し、該駆動部（３６）と補機取付部（３１）に取付けた補機（３５）との間を、ベルトより成る連結部材（３２）を介して連動したので、据付幅を構造上可能な範囲内まで狭くすることができ、また、エンジンの支持部をクランク軸よりも上方に位置させることができるので、エンジンの重心が高くなるのを防ぐことができ、延いては該エンジンを搭載する機体の安定性の向上にもつながる。
さらに、前記据付部がエンジンの前部動力取出部の補強部材を兼ねることができ、支持剛性を向上させることができる。
【００２２】
また、前記据付部材に前部駆動装置の取付座を設け、エンジン前部に、該据付部材を介して、該前部駆動装置を取付けたので、エンジン駆動部の補強を行うと共に駆動ケースとの兼用が可能となり、前部駆動装置等の設置性、耐久性の向上を図ることができる。
【００２３】
また、前記据付部材に補機取付部を設けたので、該据付部材を補機を取付ける際のステーとして兼用することができる。よって、エンジン近傍における省スペース化や省コスト化、または組立て時の工程の簡略化を実現できる。
【００２４】
請求項２の如く、該補機取付部（３１）の反エンジン側に、前記該駆動部（３６）と補機（３５）とを被覆するカバー（３３）を、据付部材（２０）上下面に螺子より成る固定部材（３４）によって締め付け固定したので、エンジン付近での作業時において、安全性の向上が図れる。
【００２５】
請求項３に示す如く、前記動力取出用伝動ケース（１１）を舶用減速逆転機用としたので、エンジンの支持の自由度を向上することができ、エンジンを載置する位置の自由度が向上し、エンジンの複雑な構成部分においても支持可能となる。
また、前記ギヤケースと減速ギヤケースの剛性も向上することができ、よりエンジン駆動部周辺の耐久性を向上することができる。
【図面の簡単な説明】
【図１】本発明に係るエンジンの全体構成を示す正面図。
【図２】同じく側面図。
【図３】エンジン支持装置の正面図。
【図４】エンジン支持装置の一実施形態を示す正面図。
【図５】同じく部分側面断面図。
【図６】エンジン支持装置の一実施形態を示す正面図。
【図７】エンジン支持装置の一実施形態を示す側面図。
【符号の説明】
１エンジン
６減速ギヤケース
１１ギヤケース
２０据付部材
２２据付脚
３０取付座
３１補機取付部
３３カバー[0001]
BACKGROUND OF THE INVENTION
TECHNICAL FIELD The present invention relates to a technique for installing vibration and noise in an internal combustion engine (engine), and more particularly to a technique for a support device for an internal combustion engine that supports an installation member.
[0002]
[Prior art]
2. Description of the Related Art Conventionally, in an engine support device for an internal combustion engine such as a small ship, as a technique for suppressing vibrations of the airframe, a method using an elastic member such as rubber for an engine support part has become the mainstream (for example, patents). Reference 1). Further, the engine body is supported by cantilever support from the engine, and the support portions are individually independent.
[0003]
(Patent Document 1)
Japanese Patent Laid-Open No. 7-215295
[Problems to be solved by the invention]
However, when a conventional engine support device is used for an engine that connects the mounting leg to the gear case, it is necessary to dispose a drive gear for the fuel injection pump in the engine and connect the mounting leg to the gear case that covers this gear. The space for the mounting legs was taken to the side, and the mounting width of the engine was wide. Further, the mounting leg is positioned lower than the center of the gear case. For this reason, the resonance rotational speed of the engine in the attached state changes, and the necessity of increasing the idle rotational speed of the engine arises. This makes it difficult to improve fuel efficiency by suppressing engine noise and vibration.
[0005]
In addition, since the mounting leg is mounted on the engine, the mounting leg needs to be individually configured for the arrangement of the boat and the like when the engine is arranged. Requires labor for maintenance and assembly. Therefore, in order to solve the above-described problems, the present invention provides an engine support device that improves engine soundproofing, vibration isolation, fuel consumption, and workability during maintenance and assembly.
[0006]
[Means for Solving the Problems]
The problem to be solved by the present invention is as described above. Next, means for solving the problem will be described.
[0007]
In claim 1, a power take-off transmission case (11) is attached to one side of the cylinder block (2) constituting the engine (1), and a screw is provided on the outer surface of the power take-out transmission case (11). The installation member (20) is attached to the main body (20), and the installation member (20) has a rhombus that is substantially chamfered in a front view and includes a main body (20a), a beam (20d), and an attachment (20e). 20a), a power outlet (20c) which is a circular hole is formed at the center, and further, installation legs (22) are attached to attachment parts (20) on the left and right side surfaces of the main body part (20a). ), The mounting member (20) is provided with the mounting seat (30) of the front drive device (29), and the mounting seat (30) is supported by the supporting portion (21) standing from the bottom of the machine body. ) Is inserted into the crankshaft (3), and the crankshaft (3) is So that substantially the center of the Chikarato outlet (20c), fixed with screws attaching seat (30) in the mounting member (20), accessory attachment portion (31) provided in the mounting member (20), said crank A drive part (36) is pivotally supported on the side opposite to the engine on the shaft (3), and a belt is provided between the drive part (36) and the accessory (35) attached to the accessory attachment part (31) from the belt . in which it linked via a connecting member (32) made.
[0008]
According to a second aspect of the present invention, in the engine support device according to the first aspect, the cover (36) and the auxiliary device (35) are covered on the side opposite to the engine of the auxiliary device mounting portion (31). 33) is fastened and fixed to the upper and lower surfaces of the installation member (20) by fixing members (34) made of screws.
[0009]
According to a third aspect of the present invention, in the engine support device according to the first aspect, the power take-out transmission case (11) is used for a marine speed reduction reverser.
[0010]
DETAILED DESCRIPTION OF THE INVENTION
Next, embodiments of the invention will be described.
[0011]
1 is a front view showing the overall configuration of the engine according to the present invention, FIG. 2 is a side view of the same, FIG. 3 is a front view of the engine support device, and FIG. 4 is a front view showing an embodiment of the engine support device. FIG. 6 is a partial sectional side view, FIG. 6 is a front view showing an embodiment of the engine support device, and FIG. 7 is a side view showing an embodiment of the engine support device.
[0012]
First, the overall configuration of the engine will be described with reference to FIGS. 1 and 2. In an engine (internal combustion engine) 1, a crankshaft 3 is pivotally supported by a cylinder block 2 composed of a cylinder and a crankcase housing a plurality of pistons, and the driving force of the engine 1 is transmitted from one end of the crankshaft 3 into a reduction gear case 6. Is done. The driving force transmitted into the reduction gear case 6 is decelerated by a reduction device (not shown) and transmitted to the output shaft 7. The engine 1 covers the lower part of the cylinder block 2 with an oil pan 4 and stores lubricating oil in the oil pan 4. Further, the upper portion of the cylinder block 2 is covered with a cylinder head 5, a valve arm chamber 8 is disposed above the cylinder block 5, a supercharger 9 is further disposed on the valve arm chamber 8, and one end of the valve arm chamber 8 is disposed. A heat exchanger (cooler) 10 is arranged.
[0013]
A gear case (power extraction transmission case) 11 is attached to one side of the cylinder block 2 to house a cam gear, a pump drive gear, and the like. An oil mist separator 12 is disposed on the gear case 11, a lubricating oil return pipe 13 for returning the lubricating oil separated by the oil mist separator 12 to the oil pan 4 is communicated, and the lower end of the lubricating oil return pipe 13 is The oil return device 14 is communicated.
[0014]
Here, a support device for the engine 1 which is a main part of the present invention will be described with reference to FIGS. 1 and 3. The engine 1 is supported by support portions 21 and 21 erected from the bottom of the machine body by support devices provided at both ends of an installation member 20 fixed to the gear case 11 with screws or the like. The installation member 20 includes a main body portion 20a, a beam 20d, and an attachment portion 20e, and is a rhombus that is substantially chamfered in front view. A power outlet 20c, which is a circular hole, is formed at the center of the main body 20a, and reinforcing beams 20d are formed at the upper and lower edges of the main body 20a. The beam 20d extends forward from the main body 20a, and improves the rigidity of the installation member 20. And the attachment part 20e for attaching the installation leg 22 is provided in the left-right side surface of the main-body part 20a. At both ends of the installation member 20 in a direction substantially perpendicular to the direction of the crankshaft 3, the installation leg 22 having a substantially L shape in front view is screwed by fixing the vertical portion 22b to the mounting portion 20e with bolts 24. Worn. Further, the mounting leg 22 is provided with a reinforcing plate 25 having a substantially triangular shape in front view for supplementing the strength. An anti-vibration support portion 26 is screwed to the horizontal portion 22 a of the installation leg 22 through a support column 27 fixed to the anti-vibration support portion 26 so that the height can be adjusted by a nut 28.
[0015]
As described above, when the method of supporting the engine 1 by providing the installation member 20 in the gear case 11 is adopted, the connection area between the gear case 11 and the installation member 20 can be increased, and the rigidity in the connection portion is improved. The support rigidity of the engine 1 is improved. And the attachment number of the binding tools which connect the gear case 11 and the installation member 20 can be increased, and durability can be improved easily. Furthermore, the installation width can be adjusted by the width of the installation member 20, and the installation width can be narrowed to a range that is structurally possible. Further, since the support portion of the engine 1 can be positioned above the crankshaft 3, it is possible to prevent the center of gravity of the engine 1 from becoming higher, and to improve the stability of the airframe on which the engine 1 is mounted. Connected. Furthermore, the installation member 20 can also serve as a reinforcing member for the front power extraction portion of the engine 1, and the rigidity of the front power extraction portion is improved.
[0016]
Next, an embodiment of the present invention will be described with reference to FIGS. The mounting member 20 is provided with a mounting seat 30 for a front drive device 29. The mounting seat 30 is a hollow member having a substantially circular shape when viewed from the front and a substantially U shape when viewed from the side. The crankshaft 3 is inserted into the mounting seat 30 and is fixed to the substantial center of the installation member 20 with a screw or the like with the crankshaft 3 as the center. That is, the front drive device 29 is attached via the attachment seat 30 provided on the installation member 20. The structure provided with the mounting seat 30 as described above can reinforce the engine drive unit and can also be used as a drive case, thereby improving the installation and durability of the front drive unit 29 and the like. Can do. Further, since the mounting seat 30 of the front drive device 29 is attached to the installation member 20, the installation member 20 can cope with the drive configuration of the engine.
[0017]
Further, as shown in FIG. 6, an auxiliary machine attachment portion 31 can be provided on the installation member 20. Auxiliary equipment 35 such as a hydraulic pump for steering, a generator, or a water pump is attached to the auxiliary equipment mounting portion 31. The auxiliary machine 35 is driven by a rotational driving force taken out by a power transmission device such as a gear or a pulley from a driving unit pivotally supported on the opposite side of the engine on the crankshaft 3 as a power source. In this way, by providing the auxiliary equipment mounting portion 31 on the installation member 20, there is no need to separately provide an auxiliary equipment stay or the like, and the installation member 20 can also be used as a stay when installing the auxiliary equipment 35. Can do. Therefore, space saving and cost saving near the engine 1 or simplification of the assembly process can be realized. Moreover, attachment and removal of the auxiliary machine 35 are facilitated, and workability during maintenance can be improved. Further, the auxiliary machine mounting portion 31 can be configured so as not to select the structure depending on the auxiliary machine 35 to be mounted, and by doing so, the auxiliary machine mounting portion 31 and the auxiliary machine are excellent in compatibility, and each machine body or work It is possible to attach the auxiliary machine 35 required every hour. Furthermore, it is possible to standardize and series the auxiliary equipment to be installed.
[0018]
Next, an embodiment of the present invention will be described with reference to FIG. An auxiliary machine is attached to the auxiliary machine mounting part 31, and a drive part 36 is pivotally supported on the front part of the installation member 20, that is, on the side opposite to the engine on the crankshaft 3. 35 is linked via a connecting member 32 such as a belt, and the drive unit 36 and the auxiliary machine 35 are exposed. Therefore, the cover 33 that covers the drive unit 36 and the auxiliary machine 35 is fastened and fixed to the upper and lower surfaces of the main body 20a of the installation member 20 by fixing members 34 such as screws. The cover 33 is made of a material such as a synthetic resin and has excellent strength and durability. The shape of the cover 33 is not limited as long as it can cover the drive unit 36 and the auxiliary machine 35 and does not hinder the original function of the engine. Thus, by attaching the cover 33 that covers the drive unit 36 and the auxiliary machine 35 to the installation member 20, there is no possibility of coming into contact with the movable unit when working near the engine 1, and safety can be improved.
[0019]
Further, the gear case 11 and the installation member 20 are formed separately, and in a support device for an engine that is supported via the installation member 20, the gear case 11 can be used for a marine speed reduction reverser. That is, the above-described invention is for the gear case 11 side, but these can also be applied to the marine reduction reverse gear side, that is, the reduction gear case 6 side shown in FIG. By doing so, the degree of freedom of support of the engine 1 can be improved, so that the degree of freedom of the position where the engine 1 is placed is improved and can be supported even in complicated components of the engine 1. Further, the rigidity of the gear case 11 and the reduction gear case 6 can be improved, and the durability around the engine drive unit is further improved.
[0020]
【The invention's effect】
Since the present invention is configured as described above, the following effects can be obtained.
[0021]
As shown in claim 1, in claim 1, a power take-off transmission case (11) is attached to one side of the cylinder block (2) constituting the engine (1), and the power take-out transmission case (11 The mounting member (20) is attached to the outer side surface of the mounting member (20) via a screw, and the mounting member (20) is substantially chamfered in a front view including the main body portion (20a), the beam (20d), and the mounting portion (20e). The power outlet (20c), which is a circular hole, is formed at the center of the main body (20a), and the mounting legs (22) are attached to the mounting portions (20) on the left and right side surfaces of the main body (20a). In the support device that is supported by the support portion (21) that is erected from the bottom of the machine body by the installation legs (22), the mounting seat (30) of the front drive device (29) is attached to the installation member (20). The crankshaft (3) is inserted through the mounting seat (30), and the crank The mounting seat (30) is fixed to the installation member (20) with screws so that the rank shaft (3) is substantially at the center of the power outlet (20c), and an auxiliary machine mounting portion ( 31), and a drive unit (36) is pivotally supported on the opposite side of the engine on the crankshaft (3), and the auxiliary unit (35) is mounted on the drive unit (36) and the auxiliary unit mounting unit (31). Since the belt is linked via a connecting member (32) made of a belt, the installation width can be narrowed to a structurally possible range, and the engine support portion is positioned above the crankshaft. Therefore, it is possible to prevent the center of gravity of the engine from becoming high, and as a result, to improve the stability of the airframe on which the engine is mounted.
Furthermore, the installation part can also serve as a reinforcing member for the front power take-out part of the engine, and the support rigidity can be improved.
[0022]
In addition, since the mounting member is provided with a mounting seat for the front drive unit, and the front drive unit is mounted on the front part of the engine via the mounting member, the engine drive unit is reinforced and the drive case The dual use is possible, and the installation and durability of the front drive device and the like can be improved.
[0023]
Moreover, since the attachment member is provided with the accessory attachment portion, the attachment member can also be used as a stay when the accessory is attached. Therefore, space saving and cost saving in the vicinity of the engine or simplification of the assembly process can be realized.
[0024]
The cover (33) that covers the drive part (36) and the auxiliary machine (35) is provided on the side opposite to the engine of the auxiliary machine mounting part (31), and the mounting member (20) upper and lower surfaces. Since it is fastened and fixed by a fixing member (34) made of a screw, safety can be improved when working near the engine.
[0025]
As described in claim 3, since the power take-off transmission case (11) is used for a marine speed reduction reverser, the degree of freedom in supporting the engine can be improved and the degree of freedom in the position where the engine is placed is improved. However, it is possible to support even complex components of the engine.
Further, the rigidity of the gear case and the reduction gear case can be improved, and the durability around the engine drive unit can be further improved.
[Brief description of the drawings]
FIG. 1 is a front view showing an overall configuration of an engine according to the present invention.
FIG. 2 is a side view of the same.
FIG. 3 is a front view of the engine support device.
FIG. 4 is a front view showing an embodiment of an engine support device.
FIG. 5 is a partial side sectional view of the same.
FIG. 6 is a front view showing an embodiment of an engine support device.
FIG. 7 is a side view showing an embodiment of an engine support device.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Engine 6 Reduction gear case 11 Gear case 20 Installation member 22 Installation leg 30 Mounting seat 31 Auxiliary equipment mounting part 33 Cover

Claims

A power take-out transmission case (11) is attached to one side of the cylinder block (2) constituting the engine (1), and an installation member (20 is attached to the outer surface of the power take-out transmission case (11) via a screw. The mounting member (20) is a rhombus that is substantially chamfered in a front view consisting of a main body portion (20a), a beam (20d), and an attachment portion (20e), and in the center of the main body portion (20a), A power outlet (20c), which is a circular hole, is formed, and further, installation legs (22) are attached to the left and right attachment parts (20) of the main body part (20a), and the installation legs (22) In the support device that supports the standing support portion (21),
A mounting seat (30) for the front drive device (29) is provided on the installation member (20), and a crankshaft (3) is inserted into the mounting seat (30), and the crankshaft (3) is connected to the power take-off. The mounting seat (30) is fixed to the installation member (20) with a screw so as to be approximately the center of the outlet (20c), and an auxiliary machine mounting portion (31) is provided on the installation member (20). 3) A drive part (36) is pivotally supported on the opposite side of the engine, and a belt is connected between the drive part (36) and the accessory (35) attached to the accessory attachment part (31). An engine support device that is linked via a member (32).

2. The engine support device according to claim 1, wherein a cover (33) that covers the drive unit (36) and the auxiliary machine (35) is provided on the side opposite to the engine side of the auxiliary machine mounting part (31). (20) The engine support device, wherein the upper and lower surfaces are fastened and fixed by fixing members (34) made of screws .

2. The engine support device according to claim 1, wherein the power take-off transmission case (11) is used for a marine speed reduction reverser.