JPH0849719A - Bearing with bearing metal deformation preventing structure - Google Patents
Bearing with bearing metal deformation preventing structureInfo
- Publication number
- JPH0849719A JPH0849719A JP30842694A JP30842694A JPH0849719A JP H0849719 A JPH0849719 A JP H0849719A JP 30842694 A JP30842694 A JP 30842694A JP 30842694 A JP30842694 A JP 30842694A JP H0849719 A JPH0849719 A JP H0849719A
- Authority
- JP
- Japan
- Prior art keywords
- bearing
- cap
- metal
- saddle
- tightening
- 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.)
- Granted
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B3/00—Engines characterised by air compression and subsequent fuel addition
- F02B3/06—Engines characterised by air compression and subsequent fuel addition with compression ignition
Landscapes
- Shafts, Cranks, Connecting Bars, And Related Bearings (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明はディーゼルエンジン用主
軸受、等に適用される軸受メタル変形防止構造を有する
軸受に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a bearing having a bearing metal deformation preventing structure applied to a main bearing for a diesel engine and the like.
【０００２】[0002]
【従来の技術】図１０は従来のディーゼル機関用主軸受
を示す正面図、図１１はその平面図である。両図におい
て、２１はサドル、２２はキャップ（軸受押え金物）、
２３は上メタル、２４は下メタル、２５は上、下メタル
２３，２４間の調整シム、２６は締付ボルト、２７はホ
ワイトメタルである。これらの各要素より構成される軸
受は、ホワイトメタル２７を鋳込んだ上メタル２３と下
メタル２４を調整シム２５を介してサドル２１の上で合
せ、それをキャップ２２で押え、かつ締付ボルト２６で
もってキャップ２２とサドル２１間で締付けて構成して
いる。2. Description of the Related Art FIG. 10 is a front view showing a conventional diesel engine main bearing, and FIG. 11 is a plan view thereof. In both figures, 21 is a saddle, 22 is a cap (bearing retainer),
Reference numeral 23 is an upper metal, 24 is a lower metal, 25 is an adjustment shim between the upper and lower metals 23 and 24, 26 is a tightening bolt, and 27 is a white metal. The bearing composed of each of these elements is such that the upper metal 23 and the lower metal 24, into which the white metal 27 is cast, are aligned on the saddle 21 via the adjusting shim 25, which is pressed by the cap 22 and the tightening bolt is used. It is constituted by tightening between the cap 22 and the saddle 21 with 26.
【０００３】[0003]
【発明が解決しようとする課題】ディーゼルエンジン、
特に舶用ディーゼルエンジンでは最近の省エネルギーの
観点から長ストローク化されてきており、相対的にクラ
ンク軸のウェブが弱くなるため軸が傾き易く、軸受には
下向き荷重ばかりでなく、上向きや横向き荷重が働くよ
うになる。[Problems to be Solved by the Invention] Diesel engine,
Especially in marine diesel engines, the stroke has been lengthened from the viewpoint of recent energy saving. Since the crankshaft web becomes relatively weak, the shaft tends to tilt, and not only downward load but also upward and lateral loads act on the bearing. Like
【０００４】そのため、従来のキャップ２２及び締付ボ
ルト２６により、軸受メタルを単に押える方法では横向
き荷重に対して弱く、キャップ２２が水平方向に変位
し、それに伴い軸受メタルに応力が発生し、軸受メタル
２３，２４の表面に鋳込まれている強度的に弱いホワイ
トメタル２７が疲労破損して剥離することがある。Therefore, in the conventional method of simply pressing the bearing metal with the cap 22 and the tightening bolt 26, the bearing metal is weak against a lateral load, the cap 22 is displaced in the horizontal direction, and the stress is generated in the bearing metal. The weakly strong white metal 27 cast on the surfaces of the metals 23 and 24 may be fatigued and peeled off.
【０００５】[0005]
【課題を解決するための手段】本第１発明はこのような
課題を解決するために、軸受上メタルとこの軸受を押え
る金物であるキャップを一体化した構造とし、キャップ
の両サイド下部に凸形の嵌合部と、その外側に下向きに
傾斜する当り面を設ける。この当り面はサドル側と嵌合
し、キャップとサドルとの締付量の変化により調整可能
なように、例えば、サドル側より急な傾斜とし、締付ボ
ルト等を用いて締める前には内側に空隙が生じるような
構造とする。In order to solve such a problem, the first aspect of the present invention has a structure in which a metal on a bearing and a cap, which is a metal for pressing the bearing, are integrated, and convex portions are formed on lower portions of both sides of the cap. The fitting portion of the shape is provided, and the contact surface inclined downward is provided on the outside thereof. This contact surface is fitted with the saddle side and can be adjusted by changing the tightening amount between the cap and the saddle, for example, with a steeper slope than the saddle side, and before tightening with tightening bolts, etc. The structure should be such that voids are created.
【０００６】即ち、本第１発明は、軸受上メタルと一体
化したキャップと、同キャップの両サイド下部に軸受下
メタル端部及びこれを保持するサドルと嵌合する凸形の
嵌合部と、その外側に下向きに傾斜して前記サドルの面
と対向する当り面とを設けてなり、この傾斜付の当り面
の変形により前記締付の量を管理可能とすると共に半径
方向の変位を拘束可能としたことを特徴とする軸受メタ
ル変形防止構造を有する軸受を提供する。That is, according to the first aspect of the present invention, a cap integrated with the bearing upper metal, and a convex fitting portion for fitting the bearing lower metal end portion and a saddle for holding the lower metal end portion on both sides of the cap. , The outer side of which is provided with a contact surface which inclines downward and faces the surface of the saddle, and the deformation of this inclined contact surface makes it possible to control the amount of tightening and restrain the displacement in the radial direction. (EN) Provided is a bearing having a bearing metal deformation preventing structure which is characterized by being made possible.
【０００７】第２発明に係る軸受メタル変形防止構造を
有する軸受は、サドル３１に設けられ外側が傾斜した傾
斜面３８ａを有し内側面３８ｂが上メタルと係合するガ
イド用突起３８と、キャップ３２の下部に突設され前記
ガイド用突起の傾斜面に当接しガイドされる傾斜面３７
ａを有するスカート部３７とを備えてなり、キャップ締
付ボルト締付時の前記スカート部３７の変形を利用し
て、前記キャップ３２とサドル３１側面とのギャップを
詰めて、キャップの水平方向の変位を拘束すると共に、
前記サドルに設けたガイド用突起の内側面３８ｂにより
前記上メタルをガイドして上メタルの半径方向の変位を
拘束できるようにしたことを特徴としている。The bearing having the bearing metal deformation preventing structure according to the second aspect of the present invention includes a guide projection 38 provided on the saddle 31 and having an inclined surface 38a having an inclined outer side and an inner side surface 38b engaging with the upper metal, and a cap. An inclined surface 37 protruding from the lower part of 32 and abutting and guided by the inclined surface of the guide projection.
and a skirt portion 37 having a. By utilizing the deformation of the skirt portion 37 when the cap fastening bolt is tightened, the gap between the cap 32 and the side surface of the saddle 31 is closed, and Restrain the displacement,
The inner surface 38b of the guide projection provided on the saddle guides the upper metal so as to restrain the displacement of the upper metal in the radial direction.
【０００８】[0008]
【作用】本第１発明は前記のように構成されており、軸
受上メタルとキャップを一体化することにより、軸受上
メタルとキャップのそれぞれの単独剛性の和より上メタ
ルとキャップが一体化としての全体剛性の方が大きくな
り、強度が向上する。The first aspect of the present invention is configured as described above, and by integrating the bearing upper metal and the cap, the upper metal and the cap are integrated as a sum of the individual rigidity of each of the bearing upper metal and the cap. The overall rigidity is higher and the strength is improved.
【０００９】また、キャップの両サイド下部に凸形の嵌
合部を設けると共に外側に傾斜する当り面を設け、キャ
ップとサドルを締付けた時に変形可能な構造であるの
で、締付ボルト、等で締付けると、このキャップの傾斜
付き当り面部が変形してサドル側の傾斜付き当り面と密
着し、キャップ下端が沈み込み下メタルがサドルに固定
される。この変形可能な構造は、例えば、この当り面を
サドル側より急な傾斜にすると共に締付ボルト等を用い
て締める前には内側に空隙が生じるような配置とし、締
付ボルトを締付けることにより、前述のように密着し、
キャップがサドルに固定される。密着の度合はキャップ
下端の沈み込みの程度により締付け量が調整シム、等の
作用と合わせて適正に調整できる。又、キャップも嵌合
部と傾斜付き当り面により半径方向に固定され、上下軸
受メタルを確実に取付けることができる。In addition, convex fitting portions are provided on the lower portions of both sides of the cap, and a contact surface inclined outward is provided, so that the structure can be deformed when the cap and the saddle are tightened. When tightened, the inclined contact surface portion of the cap deforms and comes into close contact with the inclined contact surface on the saddle side, the lower end of the cap sinks, and the lower metal is fixed to the saddle. This deformable structure is, for example, arranged such that this contact surface is inclined more steeply than the saddle side, and there is a gap inside before tightening with a tightening bolt etc., and the tightening bolt is tightened. , As mentioned above,
The cap is fixed to the saddle. The degree of close contact can be properly adjusted by adjusting the amount of tightening depending on the degree of sinking of the lower end of the cap and adjusting shims. Further, the cap is also fixed in the radial direction by the fitting portion and the inclined contact surface, so that the upper and lower bearing metals can be securely attached.
【００１０】本第２発明ではサドル３１の外側に設けら
れたガイド用突起３８の外側傾斜面３８ａの傾斜角をこ
れと係合するキャップ下部スカート部３７の傾斜面３７
ａの傾斜角より緩やかに構成することにより、キャップ
締付ボルトを締付けるとキャップ３２のスカート部３７
が外側に変形して、該スカート部３７がサドル３１のガ
イド用突起３８と密着し、キャップ３２が水平方向に固
定される。In the second aspect of the present invention, the inclined surface 37 of the cap lower skirt portion 37 that engages the inclined angle of the outer inclined surface 38a of the guide projection 38 provided on the outer side of the saddle 31 with this.
When the cap tightening bolt is tightened, the skirt portion 37 of the cap 32 is configured to be gentler than the inclination angle of a.
Is deformed outward, the skirt portion 37 comes into close contact with the guide protrusion 38 of the saddle 31, and the cap 32 is fixed in the horizontal direction.
【００１１】さらにサドル３１に設けられたガイド用突
起３８はその内側面３８ｂで上メタル下部を水平方向に
ガイドするので、上下メタルの合せ面の喰い違いを防止
でき、長ストローク機関においても軸受ホワイトメタル
の表面に軸を支える油膜を連続的、安定的に形成するこ
とができる。Further, since the guide projection 38 provided on the saddle 31 guides the upper metal lower part in the horizontal direction by the inner side surface 38b thereof, it is possible to prevent the upper and lower metal mating surfaces from crossing each other, and the bearing white even in the long stroke engine. An oil film supporting the shaft can be continuously and stably formed on the surface of the metal.
【００１２】[0012]
【実施例】以下、本発明の実施例を図面に基づいて具体
的に説明する。図１は本発明の第１実施例に係る軸受メ
タル変形防止構造を有する軸受の正面図、図２は図１に
おけるＡ部の拡大詳細図、図３は図１の平面図である。Embodiments of the present invention will be described below in detail with reference to the drawings. 1 is a front view of a bearing having a bearing metal deformation preventing structure according to a first embodiment of the present invention, FIG. 2 is an enlarged detailed view of a portion A in FIG. 1, and FIG. 3 is a plan view of FIG.
【００１３】これらの図において、１はサドル、２は軸
受メタル付キャップ、３は下メタルで、従来の下メタル
２４と同じようにホワイトメタル４を鋳込んだものであ
る。５は調整シム、６は締付ボルトである。このような
構成で軸受メタル付キャップ２は、従来のキャップ２
２、上メタル２３及びホワイトメタル２７とを一体化し
たもので、本実施例においては、ホワイトメタル４を一
体的に有するキャップ構造となっている。この軸受メタ
ル付キャップ２の両サイド下部には凸形の印ろう部８を
設け、これにより、下メタル３を調整シム５を介してサ
ドル１上に締付ボルト６を締付けることにより固定す
る。この際、図２の拡大詳細図に示すように印ろう部８
の外側には、サドル１より急な傾斜を有する下向きに傾
斜する当り面９を設け、締付ボルト６を締める前にはこ
の当り面９に約０．５ｍｍの締め代７を設け、締付ボル
ト６をこの締め代７の分を締め込み、サドル１側とキャ
ップ２側の傾斜付き当り面９とを密着させる。従って調
整シム５の作用と合わせて締付量が適正になるように調
整ができる。In these figures, 1 is a saddle, 2 is a cap with a bearing metal, 3 is a lower metal, and white metal 4 is cast in the same way as the conventional lower metal 24. Reference numeral 5 is an adjustment shim, and 6 is a tightening bolt. With such a structure, the bearing metal cap 2 is the same as the conventional cap 2
2. The upper metal 23 and the white metal 27 are integrated, and in this embodiment, the cap structure has the white metal 4 integrally. Convex brazing portions 8 are provided on the lower portions of both sides of the bearing metal cap 2 so that the lower metal 3 is fixed to the saddle 1 via the adjusting shim 5 by tightening a tightening bolt 6. At this time, as shown in the enlarged detail view of FIG.
Is provided on the outside of the saddle 1 and has a steeper slope than the saddle 1, and a tightening margin 7 of about 0.5 mm is provided on the contact surface 9 before tightening the tightening bolt 6. The bolt 6 is tightened by the amount corresponding to the tightening allowance 7 to bring the saddle 1 side and the inclined contact surface 9 on the cap 2 side into close contact with each other. Therefore, it is possible to adjust so that the tightening amount becomes appropriate together with the action of the adjusting shim 5.
【００１４】図４は本発明の第２実施例に係る軸受メタ
ル変形防止構造を有する軸受の正面図、図５は図４にお
けるＢ−Ｂ断面図、図６は図４の平面図である。これら
の図において、第１実施例と異なる部分は符号１２，１
３，１４で示す部分であり、その他の部分は第１実施例
と同じであるので、これらの部分については説明は省略
する。FIG. 4 is a front view of a bearing having a bearing metal deformation preventing structure according to a second embodiment of the present invention, FIG. 5 is a sectional view taken along line BB in FIG. 4, and FIG. 6 is a plan view of FIG. In these figures, parts different from those in the first embodiment are denoted by reference numerals 12 and 1
The other parts are the same as those in the first embodiment, and the description of these parts will be omitted.
【００１５】次に、この第２実施例の特徴部分につき説
明する。本第２実施例は、図５に示すようにキャップの
内側を内に向って広がる凹状の溝１４を設け、溝付きキ
ャップ１２とすると共に、上メタルをこの溝１４に合う
突起付き上メタル１３とすることにより、キャップ１２
と上メタル１３の一体化を図れる構造にしたもので、キ
ャップ１２下部の構造については第１実施例と同様な構
造を有するものである。Next, the characteristic part of the second embodiment will be described. In the second embodiment, as shown in FIG. 5, a concave groove 14 that spreads inward toward the inside of the cap is provided to form a grooved cap 12, and the upper metal 13 with a protrusion that fits the groove 14 is used. The cap 12
The upper metal 13 and the upper metal 13 are integrated, and the lower part of the cap 12 has the same structure as that of the first embodiment.
【００１６】この第１，第２実施例においては、共にキ
ャップと上メタルが一体化しているのでその全体剛性は
大きくなり、キャップ両サイド下部に印ろう部８を設け
ると共にその外側にサドル１より急な傾斜を有する当り
面９、締め代７を設けることにより、これらを調整シム
５を介して締付ボルト９で締付けて、当り面９が変化
し、締付量を調整可能とし、サドル１側の傾斜面が密着
し、キャップ２又は１２下端が沈み込み、下メタル３が
サドル１に固定され、又、キャップ２又は１２も印ろう
部８と傾斜付き当り面により半径方向に固定される。In both the first and second embodiments, since the cap and the upper metal are integrally formed, the overall rigidity thereof is increased, and the seal wax portions 8 are provided on the lower portions of both sides of the cap and the saddle 1 is provided outside the seal wax portions. By providing the contact surface 9 and the tightening allowance 7 having a steep inclination, these are tightened by the tightening bolts 9 through the adjusting shim 5, the contact surface 9 changes, and the tightening amount can be adjusted. Side inclined surface is in close contact, the lower end of the cap 2 or 12 sinks, the lower metal 3 is fixed to the saddle 1, and the cap 2 or 12 is also fixed in the radial direction by the stamped portion 8 and the inclined contact surface. .
【００１７】そのため、締付け量が適正となるように調
整ができると共に、軸の上、下、水平方向荷重による軸
受変形応力を低減し、軸受メタルの損傷を防止すること
ができるのでエンジンの長ストローク化が可能となるも
のである。Therefore, the tightening amount can be adjusted so that the bearing deformation stress due to the load on the shaft in the upper, lower and horizontal directions can be reduced and the bearing metal can be prevented from being damaged, so that the long stroke of the engine can be prevented. It is possible to realize.
【００１８】次に図７〜９を参照し本発明の第３実施例
について説明する。図７は本発明の第３実施例に係る軸
受メタル変形防止構造を有する軸受の正面図、図８は図
７Ａ部の締付前の状況説明図、図９は第３実施例に係る
軸受メタル変形防止構造を有する軸受の平面図である。Next, a third embodiment of the present invention will be described with reference to FIGS. 7 is a front view of a bearing having a bearing metal deformation preventing structure according to a third embodiment of the present invention, FIG. 8 is an explanatory view of a situation before tightening of a portion A in FIG. 7, and FIG. 9 is a bearing metal according to the third embodiment. It is a top view of the bearing which has a deformation prevention structure.
【００１９】本第２発明の要部は、図８に示すようにサ
ドル３１の両側上面に外側へ傾斜し、内側で上メタル３
３の下部と係合するガイド用突起３８を設けると共に、
該ガイド用突起３８の外側の傾斜面３８ａと係合する傾
斜面３７ａを有するスカート部３７をキャップ３２の両
側下面に突設する。As shown in FIG. 8, the essential portion of the second invention is that the upper surface of both sides of the saddle 31 is inclined outward, and the upper metal 3 is provided inside.
3 is provided with a guide protrusion 38 that engages with the lower portion of 3,
A skirt portion 37 having an inclined surface 37a that engages with an outer inclined surface 38a of the guide protrusion 38 is provided on both lower surfaces of the cap 32 so as to project.
【００２０】また前記ガイド用突起３８の傾斜面３８ａ
の傾斜角はこれに係合するスカート３７の傾斜面３７ａ
部分の傾斜角より緩やかに形成する。The inclined surface 38a of the guide projection 38
The inclination angle of the skirt 37 is the inclined surface 37a
It is formed more gently than the inclination angle of the part.
【００２１】この第３実施例は前記のように構成されて
いるので、キャップ３２を締付ボルト３６を介してサド
ル３１に締付けると、前記スカート部３７は前記ガイド
用突起３８の傾斜面３８ａに押されて側外方へ変形しこ
れによりキャップ３２が水平方向に固定される。Since the third embodiment is constructed as described above, when the cap 32 is tightened to the saddle 31 via the tightening bolt 36, the skirt portion 37 is attached to the inclined surface 38a of the guide projection 38. When pushed, the cap 32 is deformed outward and thus the cap 32 is fixed in the horizontal direction.
【００２２】また上メタル３３と下メタル３４の継ぎ目
４０は、ガイド用突起３８の上面３８ｃより下方に設け
られているので、上メタル３３の下部はガイド用突起３
８により水平方向の変位が拘束されるため、上記メタル
３３と下メタル３４の継ぎ目４０は常時その連続性が保
持される。機関運転中の軸受メタル内面の油膜の形成が
保証され、軸受の寿命を延長させることができる。Further, since the joint 40 between the upper metal 33 and the lower metal 34 is provided below the upper surface 38c of the guide protrusion 38, the lower portion of the upper metal 33 is located below the guide protrusion 3.
Since the horizontal displacement is constrained by 8, the continuity of the seam 40 between the metal 33 and the lower metal 34 is always maintained. The formation of an oil film on the inner surface of the bearing metal during engine operation is guaranteed, and the life of the bearing can be extended.
【００２３】[0023]
【発明の効果】本発明は以上のように構成されているの
で次の効果を奏する。 （１）軸の上向き荷重や水平方向による軸受変形応力が
低減され、軸受メタルの損傷を防止できる。Since the present invention is constructed as described above, it has the following effects. (1) The bearing deformation stress due to the upward load of the shaft and the horizontal direction is reduced, and damage to the bearing metal can be prevented.
【００２４】（２）上下メタル表面の連続性を保持する
ことができるため、機関運転中メタル内面とジャーナル
との間に薄い油膜が連続的かつ安定的に形成され、油膜
圧が低減して軸受メタルが損傷するのを防止できる。(2) Since the continuity of the upper and lower metal surfaces can be maintained, a thin oil film is continuously and stably formed between the inner surface of the metal and the journal during engine operation, and the oil film pressure is reduced to reduce the bearing. It can prevent the metal from being damaged.
【００２５】（３）修理費、補修費及び軸受関連部材等
のコスト低減と共に、機関の信頼性の向上が実現でき
る。 （４）ディーゼル機関に適用することによりその長スト
ローク化が可能となり、機関の省エネルギー化を追求で
きる。(3) Repair costs, repair costs, bearing-related member costs, etc. can be reduced, and the reliability of the engine can be improved. (4) By applying it to a diesel engine, the stroke can be extended, and energy saving of the engine can be pursued.
【図１】本発明の第１実施例に係る軸受メタル変形防止
構造を有する軸受の正面図である。FIG. 1 is a front view of a bearing having a bearing metal deformation preventing structure according to a first embodiment of the present invention.
【図２】図１におけるＡ部拡大詳細図である。FIG. 2 is an enlarged detailed view of a portion A in FIG.
【図３】図１の平面図である。FIG. 3 is a plan view of FIG.
【図４】本発明の第２実施例に係る軸受メタル変形防止
構造を有する軸受の正面図である。FIG. 4 is a front view of a bearing having a bearing metal deformation preventing structure according to a second embodiment of the present invention.
【図５】図４におけるＢ−Ｂ断面図である。5 is a sectional view taken along line BB in FIG.
【図６】図４における平面図である。FIG. 6 is a plan view of FIG.
【図７】本発明の第３実施例に係る軸受メタル変形防止
構造を有する軸受の正面図である。FIG. 7 is a front view of a bearing having a bearing metal deformation preventing structure according to a third embodiment of the present invention.
【図８】図７Ａ部の締付前の状況図である。FIG. 8 is a situation diagram of the portion of FIG. 7A before tightening.
【図９】図７の平面図である。9 is a plan view of FIG. 7. FIG.
【図１０】従来の軸受の正面図である。FIG. 10 is a front view of a conventional bearing.
【図１１】従来の軸受の平面図である。FIG. 11 is a plan view of a conventional bearing.
１…サドル、２…軸受メタル付キャップ、３…下メタ
ル、４…ホワイトメタル、５…調整シム、６…締付ボル
ト、７…締め代、８…印ろう部、９…当り面、１２…キ
ャップ、１３…上メタル、１４…凹部、３１…サドル、
３２…キャップ、３３…上メタル、３４…下メタル、３
５…ホワイトメタル、３６…締付ボルト、３７…スカー
ト、３７ａ…傾斜面、３８…ガイド用突起、３８ａ…傾
斜面、３９…締め代、４０…継ぎ目。DESCRIPTION OF SYMBOLS 1 ... Saddle, 2 ... Cap with bearing metal, 3 ... Lower metal, 4 ... White metal, 5 ... Adjusting shim, 6 ... Tightening bolt, 7 ... Tightening margin, 8 ... Wax part, 9 ... Contact surface, 12 ... Cap, 13 ... Upper metal, 14 ... Recess, 31 ... Saddle,
32 ... Cap, 33 ... Upper metal, 34 ... Lower metal, 3
5 ... White metal, 36 ... Tightening bolt, 37 ... Skirt, 37a ... Inclined surface, 38 ... Guide protrusion, 38a ... Inclined surface, 39 ... Tightening margin, 40 ... Seam.
Claims (2)
同キャップの両サイド下部に軸受下メタル端部及びこれ
を保持するサドルと嵌合する凸形の嵌合部と、その外側
に下向きに傾斜して前記サドルの面と対向する当り面と
を設けてなり、この傾斜付の当り面の変形により前記締
付の量を管理可能とすると共に半径方向の変位を拘束可
能としたことを特徴とする軸受メタル変形防止構造を有
する軸受。1. A cap integrated with a bearing metal,
Provided at the lower portions of both sides of the same cap are convex fitting portions for fitting the bearing lower metal end portion and a saddle for holding the same, and a contact surface that is inclined downward to the outside and faces the surface of the saddle. A bearing having a bearing metal deformation preventing structure characterized in that the amount of tightening can be controlled and the displacement in the radial direction can be restrained by the deformation of the inclined contact surface.
た傾斜面（３８ａ）を有し内側面（３８ｂ）が上メタル
と係合するガイド用突起（３８）と、キャップ（３２）
の下部に突設され前記ガイド用突起の傾斜面に当接しガ
イドされる傾斜面（３７ａ）を有するスカート部（３
７）とを備えてなり、キャップ締付ボルト締付時の前記
スカート部（３７）の変形を利用して、前記キャップ
（３２）とサドル（３１）側面とのギャップを詰めて、
キャップの水平方向の変位を拘束すると共に、前記サド
ルに設けたガイド用突起の内側面（３８ｂ）により前記
上メタルをガイドして上メタルの半径方向の変位を拘束
するように構成したことを特徴とする軸受メタル変形防
止構造を有する軸受。2. A guide projection (38) provided on a saddle (31) and having an inclined surface (38a) whose outer side is inclined and whose inner side surface (38b) engages with an upper metal, and a cap (32).
(3a) having an inclined surface (37a) protruding from the lower part of the guide and contacting and guiding the inclined surface of the guide projection.
7) and utilizing the deformation of the skirt portion (37) when tightening the cap tightening bolt to close the gap between the cap (32) and the side surface of the saddle (31),
The cap is constrained from being displaced in the horizontal direction, and the inner surface (38b) of the guide projection provided on the saddle is used to guide the upper metal to constrain the displacement of the upper metal in the radial direction. Bearing having a metal deformation preventing structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6308426A JP2971352B2 (en) | 1994-05-31 | 1994-11-18 | Bearing with bearing metal deformation prevention structure |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11828494 | 1994-05-31 | ||
| JP6-118284 | 1994-05-31 | ||
| JP6308426A JP2971352B2 (en) | 1994-05-31 | 1994-11-18 | Bearing with bearing metal deformation prevention structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0849719A true JPH0849719A (en) | 1996-02-20 |
| JP2971352B2 JP2971352B2 (en) | 1999-11-02 |
Family
ID=26456245
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6308426A Expired - Lifetime JP2971352B2 (en) | 1994-05-31 | 1994-11-18 | Bearing with bearing metal deformation prevention structure |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2971352B2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009537750A (en) * | 2006-05-17 | 2009-10-29 | エムエーエヌ・ディーゼル・フィリアル・アフ・エムエーエヌ・ディーゼル・エスイー・ティスクランド | Device for connecting two mechanical parts and method of manufacturing such a device |
| WO2013129350A1 (en) * | 2012-02-27 | 2013-09-06 | 三菱重工業株式会社 | Main bearing for internal combustion engine |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102528134B (en) * | 2011-12-30 | 2013-08-28 | 合肥熔安动力机械有限公司 | Opposite cutter machining method for inclined half face of main bearing hole of diesel engine for vessel |
-
1994
- 1994-11-18 JP JP6308426A patent/JP2971352B2/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009537750A (en) * | 2006-05-17 | 2009-10-29 | エムエーエヌ・ディーゼル・フィリアル・アフ・エムエーエヌ・ディーゼル・エスイー・ティスクランド | Device for connecting two mechanical parts and method of manufacturing such a device |
| KR101283947B1 (en) * | 2006-05-17 | 2013-07-09 | 맨 디젤 앤드 터보 필리얼 아프 맨 디젤 앤드 터보 에스이 티스크랜드 | Device for connecting two machine parts and method for producing such a device |
| WO2013129350A1 (en) * | 2012-02-27 | 2013-09-06 | 三菱重工業株式会社 | Main bearing for internal combustion engine |
| CN104024617A (en) * | 2012-02-27 | 2014-09-03 | 三菱重工业株式会社 | Main bearing for internal combustion engine |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2971352B2 (en) | 1999-11-02 |
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