JPS6079112A - Main shaft bearing lubricating device in internal- combustion engine - Google Patents
Main shaft bearing lubricating device in internal- combustion engineInfo
- Publication number
- JPS6079112A JPS6079112A JP18801583A JP18801583A JPS6079112A JP S6079112 A JPS6079112 A JP S6079112A JP 18801583 A JP18801583 A JP 18801583A JP 18801583 A JP18801583 A JP 18801583A JP S6079112 A JPS6079112 A JP S6079112A
- Authority
- JP
- Japan
- Prior art keywords
- oil
- bearing
- hole
- main shaft
- bearing hole
- 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
- 230000001050 lubricating effect Effects 0.000 title claims abstract description 11
- 238000002485 combustion reaction Methods 0.000 title claims description 16
- 239000002184 metal Substances 0.000 claims description 4
- 240000002853 Nelumbo nucifera Species 0.000 claims 1
- 235000006508 Nelumbo nucifera Nutrition 0.000 claims 1
- 235000006510 Nelumbo pentapetala Nutrition 0.000 claims 1
- 238000005461 lubrication Methods 0.000 abstract description 9
- 239000003921 oil Substances 0.000 description 64
- 238000007789 sealing Methods 0.000 description 4
- NUFNQYOELLVIPL-UHFFFAOYSA-N acifluorfen Chemical compound C1=C([N+]([O-])=O)C(C(=O)O)=CC(OC=2C(=CC(=CC=2)C(F)(F)F)Cl)=C1 NUFNQYOELLVIPL-UHFFFAOYSA-N 0.000 description 2
- 238000005266 casting Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005553 drilling Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000001771 impaired effect Effects 0.000 description 2
- 239000010687 lubricating oil Substances 0.000 description 2
- 238000003754 machining Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000001816 cooling Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
- F01M1/00—Pressure lubrication
- F01M1/06—Lubricating systems characterised by the provision therein of crankshafts or connecting rods with lubricant passageways, e.g. bores
Abstract
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明は内燃機関の主軸受の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 a lubricating device for a main bearing of an internal combustion engine.
（従来技術）
従来の内燃機関の軸受の潤滑装置は、第１因に示す如く
、軸ｌＩＯ自体に通油路ＩＩｌと、該通油路ダ／に連通
ずる油流入口４！２と油流出口４！３をそれぞれキリ加
工により形成するのが通例である（例えば実開昭３；２
−！；／ｌｉｔ号公報）。(Prior Art) As shown in the first factor, the conventional lubricating device for a bearing of an internal combustion engine has an oil passage IIl in the shaft lIO itself, an oil inlet 4!2 communicating with the oil passage II, and an oil flow. It is customary to form the exits 4 and 3 by drilling each (for example, Utsukasho 3; 2
-! ;/lit issue).
しかしながら、この公知例の如く、軸１１０自体に通油
路４！１１油流入口１１２及び油流出口１３をそれぞれ
キリ加工で形成すると、その加工工数が増えて加工コス
トがアップし、さらに軸ｌＯ内に中空部ができるので軸
Ｉ１０の強度が損なわれるという問題がある。However, if the oil passages 4, 11, oil inlet 112, and oil outlet 13 are formed in the shaft 110 itself by drilling, as in this known example, the number of processing steps increases, the processing cost increases, and the shaft lO There is a problem in that the strength of the shaft I10 is impaired because a hollow portion is formed inside.
（発明の目的）
本発明は、上記の如き従来の内燃機関の軸受潤滑装置の
問題点に鑑みてなされたものであって、軸の強度を損な
うことなく、軸受部に対して確実にＷ滑油磯悴ト行うこ
とができ、さらに、軸加工工数の低減によりエンジン製
造コストの低廉化を促進し得るようにした内燃機関の主
軸受の潤滑装置を提供することを目的としてなされたも
のである。(Object of the Invention) The present invention has been made in view of the problems of the conventional bearing lubrication device for an internal combustion engine as described above, and it is an object of the present invention to ensure double lubrication of the bearing portion without impairing the strength of the shaft. The purpose of this invention is to provide a lubricating device for the main bearing of an internal combustion engine, which can be used to lubricate the main bearing of an internal combustion engine, and which can further reduce engine manufacturing costs by reducing the number of shaft machining steps. .
（発明の構成）
本発明の内燃機関の主軸受潤滑装置は、クランクケース
の側壁に軸受穴を形成し、該軸受穴内に、プレーンメタ
ル等の軸受部材を嵌装して主軸を回転自在に支承するよ
うにした内燃機関において、前記軸受穴の内側開口の上
部に油流入口を、また前記軸受穴の下方部に油流出口を
それぞれ形成する一方、前記軸受部Ｕに通油孔を形成し
て該通油孔が前記油流入口に臨む如く位置決めして該軸
受部材を前記軸受穴内に嵌装したことを特徴とするもの
である。(Structure of the Invention) The main bearing lubricating device for an internal combustion engine of the present invention has a bearing hole formed in the side wall of the crankcase, and a bearing member made of plain metal or the like is fitted into the bearing hole to rotatably support the main shaft. In the internal combustion engine, an oil inlet is formed in the upper part of the inner opening of the bearing hole, an oil outlet is formed in the lower part of the bearing hole, and an oil passage hole is formed in the bearing part U. The bearing member is positioned in such a way that the oil passage hole faces the oil inlet, and the bearing member is fitted into the bearing hole.
（実施例）
以下、本発明の内燃機関の主軸受潤滑装置を第２図ない
し第１図に示す第１実施例と第５図に示す第２実施例に
基づいて説明する。(Example) Hereinafter, a main bearing lubricating device for an internal combustion engine according to the present invention will be described based on a first example shown in FIGS. 2 to 1 and a second example shown in FIG. 5.
第２図には、クランクケース本体２とクランクケース側
藪３より構成されたクランクケース／内に主軸（クラン
ク軸）ｊを配設してなる内燃機関２がパされている。FIG. 2 shows an internal combustion engine 2 in which a main shaft (crankshaft) j is disposed within a crankcase made up of a crankcase body 2 and a crankcase side bush 3.
クランクケースｌは、ダイカスト鋳抜き方式で一体成型
されており、そのクランクケース本体２のｍａｐに一体
形成した軸受穴２とクランクケース側蓋３に一体形成し
た軸受穴２乙には軸受部材（プレーンメタル）１０．．
２７をそれぞれ嵌装して骸各軸受部材１０．２７によっ
てクランク軸Ｓを回転自在に支承している。The crankcase l is integrally molded using a die-cast casting method, and a bearing hole 2 integrally formed in the map of the crankcase body 2 and a bearing hole 2 integrally formed in the crankcase side cover 3 are provided with bearing members (plain metal)10. ．．
27, and the crankshaft S is rotatably supported by each bearing member 10.27.
クランクケース本体２の軸受穴乙は、クランクケースｌ
の内、外を連通せしめる如く形成されている。該軸受穴
６は、第３図及び第４図に永す如く、その外側（冷却フ
ァン／、２側）の開口部６５にはシール部材７９の収＠
部２２が形成される一方、他方の内側開口部ａｂの上部
には適宜深さだけ外側開口部ｌｏ側に凹入する油流入口
／ｊが形成されている。シール部材収容部２２は、その
中にシール部材ｌデを収容したとき、その底面２２りと
シール部、ｉｔ／９との間に適宜間隔Ｗを有する隙間２
３が生じる深さとしている。又、軸受穴乙の内側開口ａ
ｂの下部には、油流入口１５とほば対向する位置に油流
出口１６が形成されている（第１Ｉ図）。該油流出口／
乙は、クランクケースｌの内側からシール部材収容部５
２２の隙間、２３に連通ずるようにして形成されている
。尚、該油流入口／３、油流出口１６及びシール部材収
容部λ２はクランクケース／を鋳造形成するとき、クラ
ンクケースｌとともに一体的にｆｊｊ抜き形成される。The bearing hole B of the crankcase body 2 is located in the crankcase L
It is formed in such a way that the inside and outside communicate with each other. As shown in FIGS. 3 and 4, the bearing hole 6 has a sealing member 79 housed in the opening 65 on the outside (cooling fan/2 side).
On the other hand, an oil inlet /j is formed in the upper part of the other inner opening ab and is recessed toward the outer opening lo by an appropriate depth. When the sealing member accommodating portion 22 accommodates the sealing member L, a gap 2 is formed between the bottom surface 22 and the sealing portion, it/9, with an appropriate interval W.
This is the depth at which 3 occurs. Also, the inner opening a of the bearing hole B
An oil outlet 16 is formed in the lower part of b at a position almost opposite to the oil inlet 15 (FIG. 1I). The oil outlet/
B removes the seal member accommodating portion 5 from the inside of the crankcase L.
The gap 22 is formed so as to communicate with the gap 23. Incidentally, the oil inlet/3, oil outlet 16, and seal member accommodating portion λ2 are formed integrally with the crankcase 1 by punching when the crankcase 1 is formed by casting.
このようにして、クランクケースｌとともに油流入口／
ｊ及び油流出口ｌ乙を一体形成すると、第７図に試す従
来の潤滑装４１２（実ＵｆＪ昭５２−ｊｌｔｔ号公報）
における通油路４４１１油流入口ｔ２及び油流出口１３
のようにキリ穴加工をする必要がないので、クランク軸
５の強度を損なうことなくしかもその加工コストの低減
を図ることができる。In this way, together with the crankcase l, the oil inlet/
When J and oil outlet L are integrally formed, a conventional lubrication system 412 (UfJ Publication No. 1972-jltt) is shown in Fig. 7.
Oil passage 4411 oil inlet t2 and oil outlet 13 in
Since there is no need to drill holes as in the above, the strength of the crankshaft 5 is not impaired and the processing cost can be reduced.
前記軸受部材１０は、径方向に適宜大きさの通油孔２０
が形成されており、この軸受部材ＩＯを軸受穴を内に嵌
装するとき、その通油孔２０が軸受穴乙の油流入口／よ
に臨むように位置決めされる。尚、この実施例では油流
入口／ｊの上方に位置するクランクケース壁内面を若子
外方に凹入させ、該凹入壁２４！とその画側に形成した
リブ２夕。The bearing member 10 has an appropriately sized oil passage hole 20 in the radial direction.
is formed, and when this bearing member IO is fitted into the bearing hole, it is positioned so that its oil passage hole 20 faces the oil inlet/port of the bearing hole B. In this embodiment, the inner surface of the crankcase wall located above the oil inlet /j is recessed outwardly from the recessed wall 24! And two ribs formed on the side of the image.
２よとで油受室２ｒを形成し、油かきｎ／ｆによって奄
よね上けられる潤滑油が該油受室２１ｒでＭｉ集され易
いようにしている。2 and 2 form an oil receiving chamber 2r, so that the lubricating oil splashed up by the oil paddle n/f is easily collected in the oil receiving chamber 21r.
一方、クランクケース側蓋３は、その軸受穴コ乙に、ク
ランクケース本体２の軸受穴乙と同様にして油流入口２
り、油流出口３０及びシール部材収容部３１を形成し、
該軸受穴、２＆内に通油孔３２を形成した軸受部材、２
７を嵌装している。このクランクケース側Ｎ３側におい
てもシール部材収容部３／の底壁３／Ｇとシール部材／
りとの間に隙間３３が形成されている。On the other hand, the crankcase side cover 3 has an oil inlet 2 in the bearing hole 2 in the same manner as in the bearing hole 2 in the crankcase body 2.
, forming an oil outlet 30 and a seal member accommodating portion 31,
A bearing member 2 having an oil passage hole 32 formed in the bearing hole 2&
7 is installed. Also on this crankcase side N3 side, the bottom wall 3/G of the seal member accommodating portion 3/ and the seal member/
A gap 33 is formed between the two.
続いて、゛図示第１実施例の内燃機関の主軸受潤滑装置
の作用を説明すると、エンジンが運転されるとクランク
ケースｌ内の油は、油かき棒ｌざによってクランクケー
スｌ内の上方に向ってはねかけられる。この飛散油のう
ちクランクケース側壁ｌに付着した一部の油は該側壁ｌ
をつたわって油受室２．ｒ内に捕集されそこから軸受穴
乙の油流入口／ｊに流入する。油流入口ｌ！へ流入した
油は、軸受部材ＩＯの通油孔２０から主軸５の軸受摺動
部へ流入しさらにシール部材収容部、２２の隙間２３及
び油流出口／ｌを経てクランクケースｌ内に流出せしめ
られる（第３図、実線矢印）。このようにして主軸５の
軸受部は常に安定した潤滑作用が得られる。又、クラン
クケース側蓋３側でも油流入口２９、通油孔３２、隙間
３３、油流出口３０を通って潤滑油が流通して主軸受部
の潤滑作用を行なう。Next, to explain the operation of the main bearing lubricating system for an internal combustion engine according to the first embodiment shown in the drawings, when the engine is operated, the oil in the crankcase l is pumped upward into the crankcase l by an oil scraper l. It gets splashed towards me. Some of this scattered oil that adhered to the side wall l of the crankcase
2. It is collected in the oil inlet r and flows from there into the oil inlet /j of the bearing hole O. Oil inlet l! The oil flowing into the bearing member IO flows into the bearing sliding part of the main shaft 5 from the oil passage hole 20 of the bearing member IO, and further flows out into the crankcase l through the seal member housing part, the gap 23 of the seal member 22, and the oil outlet /l. (Fig. 3, solid line arrow). In this way, the bearing portion of the main shaft 5 can always have a stable lubricating effect. Furthermore, on the crankcase side lid 3 side, lubricating oil flows through the oil inlet 29, oil passage hole 32, gap 33, and oil outlet 30 to lubricate the main bearing portion.
第５図には、本発明の第２実箇例の主軸受潤滑装置が示
されている。この第２実施例のものは、軸受部＄ｔ（プ
レーンメタル＞１０の内側開口端にフランジ３１を形成
し、該フランジ３１と軸受穴乙の油流入口ｌｊの内壁と
の間で油溜り室３！を形成するようにしている。このよ
うに油溜り室３ｊを形成すると、エンジンの運転中に油
かき棒／ｒによってはねかけられた油がこの油溜り室３
Ｓ内に溜まることになり、例えば、エンジンを長時間停
止した場合であってもこの油溜り案３３内の油で主軸受
部を常に潤滑状態におくことができてエンジンの再始動
をスムーズに行うことができる。FIG. 5 shows a main bearing lubricating device according to a second embodiment of the present invention. In this second embodiment, a flange 31 is formed at the inner opening end of the bearing part $t (plain metal>10), and an oil reservoir chamber is formed between the flange 31 and the inner wall of the oil inlet lj of the bearing hole B. 3! By forming the oil sump chamber 3j in this way, the oil splashed by the oil spatula/r during engine operation will flow into this oil sump chamber 3.
For example, even if the engine is stopped for a long time, the oil in this oil sump guide 33 can always keep the main bearing in a lubricated state, making it possible to restart the engine smoothly. It can be carried out.
尚、第６図は第２図に示す内燃機関のカム軸軸受部分の
構造図で、同図において符号／Ｃはブレザー室、／ｂＧ
よメインブレザー１．２６は凹部、２ｂは凹部２αの天
井貫通孔、２Ｃはブレザー室ＩＣの床貫通孔、３１Ｇは
カム軸３にの回転途中で孔、２ ｂ ＊ −２Ｃを連通
させる径方向貫通孔である。In addition, FIG. 6 is a structural diagram of the camshaft bearing part of the internal combustion engine shown in FIG.
Main blazer 1.26 is the recess, 2b is the ceiling through hole of the recess 2α, 2C is the floor through hole of the blazer chamber IC, 31G is the hole in the middle of rotation of the camshaft 3, and the radial direction connecting 2 b * -2C It is a through hole.
（発明の効果）
本発明の内燃機関の主軸受潤滑装置は、クランクケース
の側壁に形成された軸受穴に油流入口と油流出口をクラ
ンクケースとともに一体形成し、さらに該軸受穴内に、
軸受部材を、該軸受部材に形成した通油孔が油流入口に
臨む如く位置決めして嵌装するようにしているため、第
１図に示すような、軸に通油路、油流入口及び油流出口
を穿設する構造のもの（例えば実開昭！；２−！；／１
ｌｌｒ号公報）に比して、軸にキリ穴加工をする必要が
なくその加工工数を低減できるのでエンジン製造コスト
の低廉化を促進することができるとともに、主軸に中空
部が形成されないので、主軸の強度を損なわないように
することができるという効果がある。(Effects of the Invention) The main bearing lubrication device for an internal combustion engine of the present invention has an oil inlet and an oil outlet integrated with the crankcase in a bearing hole formed in a side wall of the crankcase, and further includes:
Since the bearing member is positioned and fitted so that the oil passage hole formed in the bearing member faces the oil inlet, the shaft has an oil passage, an oil inlet and an oil inlet as shown in FIG. Those with a structure that drills an oil outlet (for example, Jitsukasho!;2-!;/1
llr publication), there is no need to drill holes in the shaft and the number of machining steps can be reduced, which helps reduce engine manufacturing costs.In addition, since no hollow part is formed in the main shaft, the main shaft This has the effect of keeping the strength of the material intact.
第１図は従来の軸受潤滑装置の縦断面図、第２図は本発
明の第１実施例の主軸受潤滑装置を備えた内燃機関の縦
断面図、第３図は第２図の■部拡大図、第に図は第３図
に示すクランクケース側壁の■矢視図、第Ｓ図は本発明
の第２実施例に係る主軸受潤滑装置の要部断面図、第６
図は第２図に示す内燃機関のカム軸軸受部分の構造図で
ある。
ｌ・・・・・クランクケース
ｔ・・・・・クランクケース倒置
Ｓ・・・・・主軸
６・・・・・軸受穴
Ａｂ・・・・軸受穴の内側開口
１０・・・・軸受部材
１５・・・・油流入口
／ｌ・・・・油流出口
２０・・・・軸受部材の通油孔
一ワー ヘ−FIG. 1 is a longitudinal sectional view of a conventional bearing lubrication device, FIG. 2 is a longitudinal sectional view of an internal combustion engine equipped with a main bearing lubrication device according to a first embodiment of the present invention, and FIG. The second figure is an enlarged view of the side wall of the crankcase shown in FIG.
This figure is a structural diagram of a camshaft bearing portion of the internal combustion engine shown in FIG. 2. l...Crankcase t...Crankcase inverted S...Main shaft 6...Bearing hole Ab...Inner opening of bearing hole 10...Bearing member 15 ...Oil inlet/l...Oil outlet 20...Oil passage hole of bearing member
Claims (1)
ｊ）を形成し、該軸受穴（４）内に、プレーンメタル等
の軸受部材（１０）を嵌装して主軸（５）を回転自在に
支承するようにした内燃機関であって、前記軸受穴Ｊ−
側開開口６ｂ）の上部に油流入口（／ ！；）を、また
前記軸受穴（６）の下方部に油流出口（／ｌ）をそれぞ
れ形成する一方、前記軸受部材（１０＞に通油孔（，２
０）を形成して該蓮油孔（，２０）が前記油流入口（／
！）に臨む如く位置決めして該軸受部材く１０）を前記
軸受穴（６）内に嵌装したことを特徴とする内燃機関の
主軸受潤滑装置。1. Side 1 of crankcase (1)! (4') in the bearing hole (
j), and a bearing member (10) made of plain metal or the like is fitted into the bearing hole (4) to rotatably support a main shaft (5), wherein the bearing Hole J-
An oil inlet (/!;) is formed in the upper part of the side opening 6b), and an oil outlet (/l) is formed in the lower part of the bearing hole (6). Oil hole (,2
0) and the lotus oil hole (, 20) connects to the oil inlet (/
! 1. A main bearing lubricating device for an internal combustion engine, characterized in that the bearing member (10) is positioned so as to face the bearing hole (6) and fitted into the bearing hole (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18801583A JPS6079112A (en) | 1983-10-06 | 1983-10-06 | Main shaft bearing lubricating device in internal- combustion engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18801583A JPS6079112A (en) | 1983-10-06 | 1983-10-06 | Main shaft bearing lubricating device in internal- combustion engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6079112A true JPS6079112A (en) | 1985-05-04 |
Family
ID=16216163
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP18801583A Pending JPS6079112A (en) | 1983-10-06 | 1983-10-06 | Main shaft bearing lubricating device in internal- combustion engine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6079112A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2369785A (en) * | 2000-12-08 | 2002-06-12 | Vesa Ltd | A filter apparatus |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS539929U (en) * | 1976-07-07 | 1978-01-27 |
-
1983
- 1983-10-06 JP JP18801583A patent/JPS6079112A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS539929U (en) * | 1976-07-07 | 1978-01-27 |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2369785A (en) * | 2000-12-08 | 2002-06-12 | Vesa Ltd | A filter apparatus |
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