JPS6128004Y2 - - Google Patents
Info
- Publication number
- JPS6128004Y2 JPS6128004Y2 JP1981176369U JP17636981U JPS6128004Y2 JP S6128004 Y2 JPS6128004 Y2 JP S6128004Y2 JP 1981176369 U JP1981176369 U JP 1981176369U JP 17636981 U JP17636981 U JP 17636981U JP S6128004 Y2 JPS6128004 Y2 JP S6128004Y2
- Authority
- JP
- Japan
- Prior art keywords
- end bearing
- lubricating oil
- connecting rod
- oil
- bearing portion
- 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.)
- Expired
Links
- 239000010687 lubricating oil Substances 0.000 claims description 41
- 239000003921 oil Substances 0.000 claims description 22
- 239000011358 absorbing material Substances 0.000 claims description 10
- 230000001050 lubricating effect Effects 0.000 claims description 4
- 238000005516 engineering process Methods 0.000 description 6
- 238000005461 lubrication Methods 0.000 description 4
- 238000012545 processing Methods 0.000 description 4
- 230000007812 deficiency Effects 0.000 description 2
- 239000000314 lubricant Substances 0.000 description 2
- 229920000742 Cotton Polymers 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 239000005060 rubber Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
Landscapes
- Shafts, Cranks, Connecting Bars, And Related Bearings (AREA)
Description
【考案の詳細な説明】
本考案はエンジンの潤滑装置に関するものであ
る。[Detailed Description of the Invention] The present invention relates to a lubricating device for an engine.
従来の２サイクルエンジン、特に高速、高出力
のものにおいては、コンロツドの軸受部（軸受）
の損耗が激しいので、クランクシヤフトが挿通さ
れている大端軸受部に対しては、オイルポンプに
より強制的に給油し、潤滑、冷却を行なつてい
た。 In conventional two-stroke engines, especially those with high speed and high output, the conrod bearing (bearing)
The large end bearing, through which the crankshaft is inserted, was forcibly supplied with oil using an oil pump to lubricate and cool it.
しかしながら、ピストンピンが挿動されている
小端軸受部に対しては、特別な強制潤滑を行うこ
となく、混合気によつて潤滑、冷却を行つていた
ため、十分に潤滑されず、潤滑不足による軸受部
（軸受）の損傷が生じていた。 However, the small end bearing where the piston pin is inserted was lubricated and cooled by the air-fuel mixture without any special forced lubrication, resulting in insufficient lubrication and insufficient lubrication. Damage to the bearing part (bearing) had occurred.
そこで、例えば実公昭54−3248号公報のよう
に、コネクチングロツドの連接部を縦貫する潤滑
油通路を設けることが提案されている（以下、従
来技術という）。このような潤滑油通路は、細
長いドリルを用いて連接部におけるコネクチング
ロツド本体に穿設されるものである。 Therefore, it has been proposed, for example, as in Japanese Utility Model Publication No. 54-3248, to provide a lubricating oil passage that runs vertically through the connecting portion of the connecting rod (hereinafter referred to as "prior art"). Such a lubricating oil passage is drilled into the connecting rod body at the joint using an elongated drill.
したがつて、加工技術上の制限により、潤滑油
通路の径を小さくすることには制約がある。ま
た、潤滑油通路の径を大きくすることは、連接部
におけるコネクチングロツド本体の大きさにより
制約を受ける。ところが、潤滑油量は、エンジン
の外形的な大きさではなく、エンジンの発生する
出力によつてその必要量が決定されるため、この
ようにして設けられた潤滑油通路によると、潤滑
油量の過不足が発生する虞があり、安定して適正
な量の潤滑油を供給・確保することが難しかつ
た。 Therefore, there are restrictions on reducing the diameter of the lubricating oil passage due to processing technology limitations. Further, increasing the diameter of the lubricating oil passage is limited by the size of the connecting rod body in the connecting portion. However, the amount of lubricating oil required is determined not by the external size of the engine but by the output generated by the engine. There is a risk that an excess or deficiency of lubricating oil may occur, making it difficult to stably supply and secure an appropriate amount of lubricating oil.
また、実開昭56−127419号公報には、連接部に
おけるコネクチングロツド本体の凹所を利用して
油パイプを設けることが提案されている（以下、
従来技術という）。該油パイプは、大端軸受部
と小端軸受部の各々にドリルによつて設けられた
パイプ孔に挿通されるものである。 Furthermore, Japanese Utility Model Application Publication No. 56-127419 proposes to provide an oil pipe by utilizing the recess of the connecting rod body at the connecting part (hereinafter referred to as
(referred to as conventional technology). The oil pipes are inserted into pipe holes drilled in each of the large end bearing portion and the small end bearing portion.
ところが、大小両端の軸受部に別々に穴をあけ
る結果、切削加工の通常として、ドリル穴の中心
が互いにずれてしまうので、油パイプの挿通が難
しく、また無理に挿通しても所定の圧入緊度が得
られなかつたり、油パイプに内在する挿通時の応
力で運転中破損する不具合が容易に想定できる。 However, as a result of drilling separate holes in the large and small bearing parts, the centers of the drilled holes are shifted from each other as is the case with cutting processes, making it difficult to insert the oil pipe, and even if the oil pipe is inserted forcibly, it cannot be inserted with the specified pressure-fitting tension. It is easy to imagine that the oil pipe may not be able to maintain its proper strength, or that the stress inherent in the oil pipe during insertion may cause it to break during operation.
したがつて、油パイプの内径は、パイプの強度
や上記ドリル穴の切削性等によつて制約を受ける
ことになり、前記従来技術と同様、安定して適
正な潤滑油量を確保することが難しかつた。 Therefore, the inner diameter of the oil pipe is limited by the strength of the pipe, the machinability of the drilled hole, etc., and as with the prior art, it is difficult to ensure a stable and appropriate amount of lubricating oil. It was difficult.
さらに、昭和14年実用新案出願公告第11079号
には、連接部におけるコネクチングロツド本体の
凹所に吸油材を充填し、毛細管現象を利用するこ
とにより、吸油材をもつて潤滑油通路とした潤滑
油誘導装置が提案されている（以下、従来技術
という）。 Furthermore, in Utility Model Application Publication No. 11079 of 1932, oil-absorbing material is filled in the recess of the connecting rod body at the connecting part, and by utilizing capillarity, the oil-absorbing material is used to create a lubricating oil passage. A lubricating oil induction device has been proposed (hereinafter referred to as conventional technology).
しかしながら、該装置を小端軸受部への潤滑油
の供給に適用しても、前記凹所に装着されたフエ
ルトや脱脂綿等の吸油材が、オイルに内在する不
純物（異物）によつて目詰りを起しやすく、ま
た、たとえ目詰りがなくとも、飛散した潤滑油の
浸透を期待する構造であるため、潤滑油を安定的
に供給することは困難であつた。 However, even if this device is applied to supply lubricating oil to the small end bearing, the oil absorbing material such as felt or absorbent cotton installed in the recess may become clogged with impurities (foreign substances) inherent in the oil. Furthermore, even if there is no clogging, the structure is expected to allow scattered lubricant to penetrate, making it difficult to stably supply lubricant.
さらに、同装置によつて供給される潤滑油の量
は、吸油材の材質（吸油性）によつてそのほとん
どが決定されてしまい、かつ吸油材にはそれ程多
くの種類がないので、過不足が生じやすかつた。 Furthermore, the amount of lubricating oil supplied by this device is mostly determined by the material (oil absorbency) of the oil absorbing material, and since there are not that many types of oil absorbing materials, was likely to occur.
本考案は、前記従来技術に共通する問題点、す
なわち、小端軸受部に過不足のない適正量の潤滑
油を安定して供給することができないという問題
点の解消を目的とする。 The present invention aims to solve a problem common to the above-mentioned prior art, namely, that it is not possible to stably supply an appropriate amount of lubricating oil to the small end bearing.
前記目的を達成するために、本考案によるエン
ジンの潤滑装置の構成は、次のような特徴を具備
している。すなわち、コネクチングロツドは、ピ
ストンピンが挿通される小端軸受部と、クランク
シヤフトが挿通されかつオイルポンプ等にて潤滑
油が供給される大端軸受部と、該両軸受部を連接
する連接部とよりなり、該連接部におけるコネク
チングロツド本体の凹所に、非吸油材よりなる充
填部材が装着され、該充填部材とコネクチングロ
ツド本体とによつて囲まれた潤滑油通路が、小端
軸受部と大端軸受部とを連通して少なくとも１つ
設けられていることを特徴としている。 In order to achieve the above object, the engine lubricating device according to the present invention has the following features. In other words, the connecting rod includes a small end bearing portion through which the piston pin is inserted, a large end bearing portion through which the crankshaft is inserted and into which lubricating oil is supplied by an oil pump, etc., and a connecting rod that connects both bearing portions. A filling member made of a non-oil-absorbing material is installed in the recess of the connecting rod main body at the connecting portion, and a lubricating oil passage surrounded by the filling member and the connecting rod main body is formed into a small It is characterized in that at least one end bearing portion and a large end bearing portion are provided in communication with each other.
したがつて、小端軸受部への潤滑油通路を、加
工技術等によつてその形状や大きさを規制される
ことなく設けることができ、もつて安定した適正
量の潤滑油を大端軸受部から小端軸受部に供給す
ることができる。 Therefore, the lubricating oil passage to the small end bearing can be provided without having its shape or size restricted by processing technology, etc., and a stable and appropriate amount of lubricating oil can be delivered to the big end bearing. can be supplied from the small end bearing section to the small end bearing section.
以下、本考案の構成を、実施例について、図面
に沿つて説明する。 DESCRIPTION OF THE PREFERRED EMBODIMENTS The configuration of the present invention will be described below with reference to the drawings.
第１図において、１は２サイクルエンジンのコ
ネクチングロツドで、小端軸受部１ａと大端軸受
部１ｂとが、連接部１ｃによつて、一体的に連接
されている。この小端軸受部１ａには、軸受部材
２が嵌着され、該軸受部材２にピストンピン３が
挿通され、該ピストンピン３によつてピストン４
が取付けられている。また、大端軸受部１ｂに
も、軸受部材５が嵌着され、該軸受部材５にクラ
ンクピン６が挿通されている。 In FIG. 1, reference numeral 1 designates a connecting rod for a two-stroke engine, in which a small end bearing portion 1a and a large end bearing portion 1b are integrally connected by a connecting portion 1c. A bearing member 2 is fitted into the small end bearing portion 1a, and a piston pin 3 is inserted through the bearing member 2.
is installed. Further, a bearing member 5 is also fitted to the big end bearing portion 1b, and a crank pin 6 is inserted through the bearing member 5.
７，８は潤滑油通路で、コネクチングロツド１
の連接部１ｃ内に形成され、小端軸受部１ａと大
端軸受部１ｂとを連通している。 7 and 8 are lubricating oil passages, connecting rod 1
The small end bearing portion 1a and the large end bearing portion 1b are communicated with each other.
９はクランクシヤフトで、該クランクシヤフト
９を支承する軸受部材１０，１０より、コネクチ
ングロツド１の大端軸受部１ｂへ潤滑油を供給す
る給油通路６ａがクランクピン６に形成されてい
る。 Reference numeral 9 denotes a crankshaft, and an oil supply passage 6a is formed in the crankpin 6 for supplying lubricating oil from bearing members 10, 10 supporting the crankshaft 9 to the large end bearing portion 1b of the connecting rod 1.
１１はサイドワツシヤ、１２はオイル受け、１
３はオイルシールである。 11 is the side washer, 12 is the oil receiver, 1
3 is an oil seal.
上記のように構成すれば、図示しないオイルポ
ンプによつて軸受部材１０に供給された潤滑油
は、オイル受けによつて集められクランクピン６
内の給油通路６ａを経て、コネクチングロツド１
の大端軸受部１ｂに供給される。しかして、この
大端軸受部１ｂに供給された潤滑油は、該大端軸
受部１ｂの円運動、および小端軸受部１ａの直線
運動による慣性力によつて、コネクチングロツド
１の連接部１ｃにおける潤滑油通路７，８を経
て、小端軸受部１ａに徐々に供給される。 With the above configuration, the lubricating oil supplied to the bearing member 10 by the oil pump (not shown) is collected by the oil receiver and the crank pin 6
Connecting rod 1 via oil supply passage 6a inside
is supplied to the big end bearing portion 1b. Therefore, the lubricating oil supplied to the large end bearing 1b is transferred to the connecting portion of the connecting rod 1 by the inertia force caused by the circular movement of the large end bearing 1b and the linear movement of the small end bearing 1a. The lubricating oil is gradually supplied to the small end bearing portion 1a through the lubricating oil passages 7 and 8 in 1c.
かくして、コネクチングロツド１の小端軸受部
１ａにも大端軸受部１ｂと同様に、潤滑油が供給
され、その結果、小端軸受部１ａにおける潤滑不
足が解消される。 In this way, lubricating oil is supplied to the small end bearing portion 1a of the connecting rod 1 as well as to the large end bearing portion 1b, and as a result, the lack of lubrication in the small end bearing portion 1a is resolved.
上記実施例の潤滑油通路７，８は、具体的に
は、コネクチングロツドの連接部における断面
形状の大体部の凹所に、金属、ゴム、プラスチツ
ク等の非吸油材からなる充填部材を接着、または
ねじ等にて固着して構成し、該充填部材とコネク
チングロツドの本体部との間に、潤滑油通路を形
成するようにすることにより形成されている。し
たがつて、潤滑油通路２６，２８の形状・大きさ
は、前記記従来技術，のように加工技術等の
制約を受けることなく、自由に設定できる。この
ため、事前の試験によつて最適な通路形状や大き
さを決定した後、その通りの潤滑油通路を形成す
ることにより、小端軸受部１ａに供給する潤滑油
の量を、適正で、かつ安定したものにすることが
できる。もちろん、前記従来技術のように毛細
管現象を利用した場合のような、潤滑油量の過不
足、不安定性がないことは言うまでもない。 Specifically, in the lubricating oil passages 7 and 8 of the above embodiment, a filling member made of a non-oil-absorbing material such as metal, rubber, or plastic is bonded to the recess in the general cross-sectional shape of the joint of the connecting rod. Alternatively, the filling member may be fixed with a screw or the like, and a lubricating oil passage may be formed between the filling member and the main body of the connecting rod. Therefore, the shape and size of the lubricating oil passages 26 and 28 can be freely set without being subject to restrictions such as processing technology as in the above-mentioned prior art. For this reason, by determining the optimal passage shape and size through preliminary tests and then forming the lubricating oil passage accordingly, the amount of lubricating oil supplied to the small end bearing portion 1a can be controlled in an appropriate manner. and can be made stable. Of course, it goes without saying that there is no excess or deficiency in the amount of lubricating oil, and there is no instability, which is the case when capillarity is utilized as in the prior art.
すなわち、本考案に用いる実施例としては、例
えば、第２図に示されるように、断面形状の本
体部２１の凹所２１ａに固着される充填部材２２
に、断面半円形の潤滑油通路２３を凹設した連接
部２４、第３図に示されるように、本体部２１に
潤滑油通路２８を凹設した連接部２９を用いるこ
とができる。 That is, as an embodiment used in the present invention, for example, as shown in FIG.
Alternatively, a connecting portion 24 having a recessed lubricating oil passage 23 having a semicircular cross section, and a connecting portion 29 having a lubricating oil passage 28 recessed in the main body portion 21 as shown in FIG. 3 can be used.
なお、本考案における潤滑油通路は、前記実施
例のような直線状に限られるものではなく、Ｓ字
状のものであつてもよい。その他、本考案の要旨
を逸脱しない範囲で、潤滑油通路に種々の変形を
施すことが可能である。 Note that the lubricating oil passage in the present invention is not limited to a straight line as in the above embodiments, but may be S-shaped. In addition, various modifications can be made to the lubricating oil passage without departing from the gist of the present invention.
本考案は、上記のように、コネクチングロツド
の連接部におけるコネクチングロツド本体の凹所
に非吸油材よりなる充填部材を装着し、該充填部
材とコネクチングロツド本体とによつて囲まれた
潤滑油通路を、小端軸受部と大端軸受部を連通し
て少なくとも１つ設けることにより、加工技術等
の制約を受けることなく、潤滑油通路の形状・大
きさを最適なものにすることができるので、コネ
クチングの小端軸受部にも大端軸受部と同様に、
潤滑油が安定的に適正量供給され、円滑に稼動す
るという優れた効果を有する。 As described above, in the present invention, a filling member made of a non-oil-absorbing material is installed in the recess of the connecting rod main body at the connecting portion of the connecting rod, and the filling member made of a non-oil-absorbing material is surrounded by the connecting rod main body. By providing at least one lubricating oil passage so that the small end bearing part and the large end bearing part communicate with each other, the shape and size of the lubricating oil passage can be optimized without being restricted by processing technology, etc. Therefore, the small end bearing of the connecting can be
It has the excellent effect of stably supplying the appropriate amount of lubricating oil and ensuring smooth operation.
図面は本考案の実施態様を例示するもので、第
１図はエンジンの潤滑装置の概略説明図、第２図
および第３図はそれぞれコネクチングロツドの連
接部の具体例の断面図である。
１……コネクチングロツド、１ａ……小端軸受
部、１ｂ……大端軸受部、１ｃ……連接部、２，
５，１０……軸受部材、４……ピストン、７，８
……潤滑油通路、２１……本体部、２１ａ……凹
所、２２……充填部材、２３，２８……潤滑油通
路、２４，２９……連接部。
The drawings illustrate embodiments of the present invention, and FIG. 1 is a schematic illustration of a lubricating system for an engine, and FIGS. 2 and 3 are sectional views of specific examples of connecting rod joints. 1... Connecting rod, 1a... Small end bearing part, 1b... Big end bearing part, 1c... Connecting part, 2,
5, 10... Bearing member, 4... Piston, 7, 8
... Lubricating oil passage, 21... Main body, 21a... Recess, 22... Filling member, 23, 28... Lubricating oil passage, 24, 29... Connecting portion.
Claims (1)
れる小端軸受部と、クランクシヤフトが挿通され
かつオイルポンプ等にて潤滑油が供給される大端
軸受部と、該両軸受部を連接する連接部とよりな
り、該連接部におけるコネクチングロツド本体の
凹所に、非吸油材よりなる充填部材が装着され、
該充填部材とコネクチングロツド本体とによつて
囲まれた潤滑油通路が、小端軸受部と大端軸受部
とを連通して少なくとも１つ設けられていること
を特徴とするエンジンの潤滑装置。 The connecting rod has a small end bearing portion through which the piston pin is inserted, a large end bearing portion through which the crankshaft is inserted and to which lubricating oil is supplied by an oil pump, etc., and a connecting portion that connects both bearing portions. a filling member made of a non-oil-absorbing material is installed in the recess of the connecting rod main body in the connecting portion,
An engine lubricating device characterized in that at least one lubricating oil passage surrounded by the filling member and the connecting rod body is provided so as to communicate with the small end bearing portion and the large end bearing portion. .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17636981U JPS5882411U (en) | 1981-11-26 | 1981-11-26 | engine lubrication system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17636981U JPS5882411U (en) | 1981-11-26 | 1981-11-26 | engine lubrication system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5882411U JPS5882411U (en) | 1983-06-03 |
| JPS6128004Y2 true JPS6128004Y2 (en) | 1986-08-20 |
Family
ID=29969315
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP17636981U Granted JPS5882411U (en) | 1981-11-26 | 1981-11-26 | engine lubrication system |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5882411U (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS543248U (en) * | 1977-06-07 | 1979-01-10 |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6030488Y2 (en) * | 1980-02-29 | 1985-09-12 | スズキ株式会社 | Connecting rods for internal combustion engines |
-
1981
- 1981-11-26 JP JP17636981U patent/JPS5882411U/en active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS543248U (en) * | 1977-06-07 | 1979-01-10 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5882411U (en) | 1983-06-03 |
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