JPH01141233A - Plain bearing - Google Patents

Abstract

PURPOSE:To suppress the temperature rise of a bearing and permit the efficient cooling action by forming a plurality of cooling grooves on the inner peripheral surface of a bearing housing and forming grooves for storing oil on the upper and lower divided surfaces of the housing and forming a discharge port for cooling oil in the oil reservoir. CONSTITUTION:The oil having a low temperature which is supplied from an oil feeding port 1 passes through an oil feeding groove 2 and is introduced into the right and left oil reservoirs 3-6. The oil introduced into a bearing passes through the oil feeding grooves 7 and 8 and lubricates and cools a shaft and the bearing. The oil used for cooling is introduced into a plurality of cooling grooves 9 and flows towards a discharge port 10 for cooling, and is discharged after carrying out the cooling action for the bearing 11 and housings 12 and 13. A plug having a hole is used as the discharge port 10 for the cooling oil, and the flow rate of the cooling oil can be adjusted according to the necessity by varying the diameter of the hole.

Description

【発明の詳細な説明】 〔産業上の利用分野〕 本発明はすべり軸受に係り、特に高速、高負荷で使用す
る軸受に好適なすべり軸受に関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a sliding bearing, and particularly to a sliding bearing suitable for bearings used at high speeds and high loads.

〔従来の技術〕[Conventional technology]

従来の装置は、特開昭６１−８８０２３号のように冷却
溝を新に設け、軸受内給油口と冷却用給油口が別々にあ
り、構造が複雑であった。Conventional devices, as disclosed in Japanese Patent Application Laid-Open No. 61-88023, have a new cooling groove, separate oil supply ports in the bearing and separate oil supply ports for cooling, and have a complicated structure.

〔発明が解決しようとする問題点〕[Problem that the invention seeks to solve]

上記従来技術は、冷却用油の流量調節及び給油される油
の温度６点について配慮がされておらず、冷却に使われ
ている油は軸受面で分岐されるため、どうしても給油温
度より高い温度で冷却溝に流れるため冷却効率がよくな
い、また、冷却を必要としないときや冷却を多く必要と
するときなど流量調節できないなどの問題があった。The above conventional technology does not take into consideration the six points of adjusting the flow rate of the cooling oil and the temperature of the supplied oil, and since the oil used for cooling is branched at the bearing surface, the temperature is inevitably higher than the oil supply temperature. There were problems such as the cooling efficiency was poor because it flowed into the cooling groove, and the flow rate could not be adjusted when no cooling was required or when a large amount of cooling was required.

本発明の目的は、冷却用油の流量調整ができ、給油温度
に近い温度で冷却溝に油を流し冷却効率を更に高め、高
速高負荷使用時の温度上昇を抑制するすべり軸受を提供
することを目的とする。An object of the present invention is to provide a sliding bearing that allows the flow rate of cooling oil to be adjusted, allows oil to flow into cooling grooves at a temperature close to the oil supply temperature, further increases cooling efficiency, and suppresses temperature rise during high-speed, high-load use. With the goal.

〔問題点を解決するための手段〕[Means for solving problems]

上記目的は、軸受ハウジング内周面に軸方向に複数列の
冷却溝をリング状に設け、ハウジング上下分割面に前記
冷却溝に連通ずる油だまりの溝を設け、この油だまりに
冷却用油排出口を設は排出口に穴付プラグを設けること
により達成される。The above purpose is to provide a plurality of ring-shaped cooling grooves in the axial direction on the inner circumferential surface of the bearing housing, provide an oil pool groove in the upper and lower divided surfaces of the housing that communicates with the cooling grooves, and drain the cooling oil into this oil pool. Providing an outlet is accomplished by providing a holed plug at the outlet.

（作用〕 軸受ハウジング内周面に設けられた軸方向に複数列のリ
ング状の冷却溝は、上下分割面に設けた油だまり部で給
油された油が、軸受内に入る油と冷却溝に入る油に分け
られる。軸受内に入った油は、軸受の潤滑、冷却の作用
をし軸受両端から排出される。冷却溝に入った油は軸受
裏金及び、ハウジングの冷却をしたのち冷却油排出口か
ら排出される。排出口に設けた穴付プラグは、穴の径を
変えることにより冷却油の量を簡単に調節することが可
能である。また油だまりには常に給油温度の冷たい油が
供給されるため、軸受内、冷却溝。(Function) Multiple rows of ring-shaped cooling grooves in the axial direction provided on the inner circumferential surface of the bearing housing allow the oil supplied in the oil pool provided on the upper and lower dividing surfaces to mix with the oil entering the bearing and the cooling grooves. The oil that enters the bearing lubricates and cools the bearing, and is discharged from both ends of the bearing.The oil that enters the cooling groove cools the bearing back metal and housing, and then the cooling oil is discharged. It is discharged from the outlet.The hole plug installed at the outlet allows you to easily adjust the amount of cooling oil by changing the diameter of the hole.Also, the oil reservoir always has cold oil at the oil supply temperature. Inside the bearing, cooling grooves are supplied.

それぞれにも、給油温度に近い温度の油が供給できる。Oil at a temperature close to the oil supply temperature can be supplied to each of them.

それによって冷却効率を上げることができ、従来より高
速、高負荷ですべり軸受を使用することができる。This increases cooling efficiency and allows plain bearings to be used at higher speeds and higher loads than before.

〔実施例〕〔Example〕

以下、本発明の一実施例を説明する。 An embodiment of the present invention will be described below.

第１〜３図は本発明の冷却構造を有するすべり軸受の一
例を示す。第１図において、給油口１から給油された低
温の油は給油溝２を通り、左右の油だまり３〜６に入る
。そこで軸受内に入る油と。1 to 3 show an example of a sliding bearing having the cooling structure of the present invention. In FIG. 1, low-temperature oil supplied from an oil supply port 1 passes through an oil supply groove 2 and enters left and right oil pools 3 to 6. There, the oil enters the bearing.

冷却用に使われる油とに分けられる。軸受内に入る油は
、軸受メタルに設けられた給油溝７，８を通り軸と軸受
の潤滑゛、冷却作用をしたのち軸受両端から排出される
。冷却用に使われる油は、複数の冷却溝９に入り、冷却
用油排出口１０に向って流れ、軸受１１及びハウジング
１２．１３の冷却作用をしたのち排出される。冷却用油
排出口１０は穴付プラグを用い、その穴の径を変えるこ
とにより、必要に応じた冷却油の流量を調節することが
できる。冷却が必要ない場合、穴のないプラグに変換す
るだけでよい。It can be divided into oil used for cooling. The oil entering the bearing passes through oil supply grooves 7 and 8 provided in the bearing metal, lubricates and cools the shaft and bearing, and is then discharged from both ends of the bearing. The oil used for cooling enters the plurality of cooling grooves 9, flows toward the cooling oil outlet 10, cools the bearing 11 and the housing 12, 13, and is then discharged. The cooling oil outlet 10 uses a plug with a hole, and by changing the diameter of the hole, the flow rate of the cooling oil can be adjusted as necessary. If cooling is not required, simply convert to a plug without holes.

また油だまり３〜６には、給油温度状態の冷たい油が常
に供給されるため、軸受内及び冷却溝にもほぼ給油温度
状態で供給できるため、効率よい冷却作用が得られる。Further, since cold oil at the oil supply temperature is always supplied to the oil reservoirs 3 to 6, it can be supplied to the inside of the bearing and the cooling groove at approximately the oil supply temperature, so that an efficient cooling effect can be obtained.

本実施例によれば、軸受内油の冷却作用に、冷却溝によ
る軸受外周部の冷却作用が加わり、軸受温度上昇を抑制
することができるため、従来よりもさらに高速、高負荷
ですべり軸受が使用できる。According to this embodiment, the cooling effect of the cooling groove on the outer periphery of the bearing is added to the cooling effect of the oil inside the bearing, making it possible to suppress the rise in bearing temperature. Can be used.

第４図は、軸受表面温度を周方向にプロットしたもので
、曲線２０は従来のもの１曲線２１は、本発明の冷却構
造を採用した場合を示す。本図に示すとおり本発明の構
造の採用により最高温度を許容値以下に押えることが可
能である。FIG. 4 shows bearing surface temperatures plotted in the circumferential direction, where curve 20 shows the conventional case, and curve 21 shows the case where the cooling structure of the present invention is adopted. As shown in this figure, by employing the structure of the present invention, it is possible to suppress the maximum temperature to a permissible value or less.

〔発明の効果〕〔Effect of the invention〕

本発明によれば、従来の軸受円冷却に加え、軸受外周部
の冷却が付加されるため、軸受の温度上昇を抑制するこ
とができ、高速、高負荷で使用する場合の温度による制
限をさらに広げる効果がある。また必要に応じて冷却油
の流量を調節できるため効率よい冷却作用が得られる。According to the present invention, in addition to the conventional bearing circular cooling, cooling of the outer circumferential part of the bearing is added, which makes it possible to suppress the temperature rise of the bearing, further reducing the temperature-related limitations when used at high speeds and high loads. It has a spreading effect. Furthermore, since the flow rate of the cooling oil can be adjusted as necessary, an efficient cooling effect can be obtained.

【図面の簡単な説明】[Brief explanation of the drawing]

第１図は本発明の一実施例を示すすべり軸受の軸直角断
面図、第２図は第１図のＡ−Ａ線平面図、第３図は第１
図のＢ−Ｂ線断面図である。第４図は第１図のθ矢視方
向に展開した軸受温度分布図である。 １・・・給油口、２・・・給油溝、３〜６・・・油だま
り、７゜８・・・給油溝、９・・・冷却溝、１０・・・
冷却用油排出口、１１・・・軸受メタル、１２・・・上
部ハウジング、１３・・・下部ハウジング、１４川回転
軸、２ｏ・・・従来の温度分布曲線、２１・・・本発明
使用の温度分布曲線、Ｔ　ｍ　ａ　ｘ・・・軸受許容温
度＋’ｌｌｎ・・・給油温度。FIG. 1 is an axis-perpendicular sectional view of a sliding bearing showing an embodiment of the present invention, FIG. 2 is a plan view taken along line A-A in FIG. 1, and FIG.
It is a sectional view taken along the line BB in the figure. FIG. 4 is a bearing temperature distribution diagram developed in the direction of the θ arrow in FIG. 1... Oil filler port, 2... Oil filler groove, 3-6... Oil pool, 7゜8... Oil filler groove, 9... Cooling groove, 10...
Cooling oil outlet, 11...Bearing metal, 12...Upper housing, 13...Lower housing, 14 River rotating shaft, 2o...Conventional temperature distribution curve, 21...Use of the present invention Temperature distribution curve, Tmax... Bearing allowable temperature +'lln... Oil supply temperature.

Claims (1)

【特許請求の範囲】 １、すべり軸受メタルと、それを支持する上部ハウジン
グと下部ハウジングで構成されるすべり軸受において、
上下分割面に油だまりとハウジング内周面に冷却溝を設
けたことを特徴とするすべり軸受。 ２、冷却溝は円周方向に複数本、油だまりは、ハウジン
グが支持するすべり軸受の給油溝位置に設けている特許
請求の範囲第１項記載のすべり軸受。[Claims] 1. A sliding bearing consisting of a sliding bearing metal and an upper housing and a lower housing that support it,
A sliding bearing characterized by an oil pool on the upper and lower dividing surfaces and a cooling groove on the inner circumferential surface of the housing. 2. The sliding bearing according to claim 1, wherein a plurality of cooling grooves are provided in the circumferential direction, and the oil reservoir is provided at the oil supply groove position of the sliding bearing supported by the housing.