JPH03104114U - - Google Patents

Description

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

第１図は本考案の一実施例に係る縦軸エンジン
の回転軸の下部ジヤーナル軸受装置を説明する図
で、第１図Ａは縦軸エンジンの縦断面側面図、第
１図Ｂはスラスト軸受カラーの斜視図であり、第
２図は他の実施例に係る下部ジヤーナル軸受装置
の縦断面図、第３図は従来技術に係る下部ジヤー
ナル軸受装置の縦断面図である。 １……縦軸エンジン、２……オイルパン、３…
…２の底壁、４……軸受ボス、５……４のボス孔
、６……回転軸、７……ラジアルジヤーナル、８
……４のボス上面、９……スラストジヤーナル、
１０……オイル、１１……１０の規定油面、１２
……オイル貯溜空間、１３……オイル入口、１４
……オイル押し上げ用螺旋溝、１５……１４の溝
下部、１６……１４の溝上部、１７……スラスト
軸受面間。 FIG. 1 is a diagram illustrating a lower journal bearing device for a rotating shaft of a vertical shaft engine according to an embodiment of the present invention, FIG. 1A is a vertical cross-sectional side view of the vertical shaft engine, and FIG. 1B is a thrust bearing. FIG. 2 is a longitudinal sectional view of a lower journal bearing device according to another embodiment, and FIG. 3 is a longitudinal sectional view of a lower journal bearing device according to the prior art. 1... Vertical shaft engine, 2... Oil pan, 3...
...bottom wall of 2, 4...bearing boss, 5...boss hole of 4, 6...rotating shaft, 7...radial journal, 8
...Top surface of the boss of 4, 9...Thrust journal,
10...oil, 11...10 specified oil level, 12
...Oil storage space, 13...Oil inlet, 14
...Spiral groove for pushing up oil, 15... lower part of groove 14, 16... upper part of groove 14, 17... between thrust bearing surfaces.

Claims (1)

【実用新案登録請求の範囲】 縦軸エンジン１のオイルパン２の底壁３に軸受
ボス４を立設し、 軸受ボス４のボス孔５に回転軸６の下部のラジ
アルジヤーナル７を内嵌支持させるとともに、軸
受ボス４のボス上面８に回転軸６の下部のスラス
トジヤーナル９を載置支持させ、 オイルパン２内のオイル１０の規定油面１１下
のオイル貯溜空間１２よりもボス上面８を高く位
置させて構成した、縦軸エンジンの回転軸の下部
ジヤーナル軸受装置において、 軸受ボス４の下部にオイル入口１３をオイルパ
ン２のオイル貯溜空間１２と連通状にあけ、ラジ
アルジヤーナル７の外周面とボス孔５の内周面と
の少なくとも一方にオイル押し上げ用螺旋溝１４
を形成し、 螺旋溝１４の溝下部１５をオイル入口１３を介
してオイルパン２内のオイル貯溜空間１２に連通
させるとともに、螺旋溝１４の溝上部１６をボス
上面８とスラストジヤーナル９との間のスラスト
軸受面間１７に連通させて構成した ことを特徴とする縦軸エンジンの回転軸の下部ジ
ヤーナル軸受装置。[Claims for Utility Model Registration] A bearing boss 4 is installed upright on the bottom wall 3 of the oil pan 2 of the vertical shaft engine 1, and a radial journal 7 at the lower part of the rotating shaft 6 is fitted and supported in the boss hole 5 of the bearing boss 4. At the same time, the thrust journal 9 at the lower part of the rotating shaft 6 is mounted and supported on the boss upper surface 8 of the bearing boss 4, and the boss upper surface 8 is lower than the oil storage space 12 below the specified oil level 11 of the oil 10 in the oil pan 2. In a lower journal bearing device for a rotating shaft of a vertical engine, which is configured to be located high, an oil inlet 13 is opened in the lower part of the bearing boss 4 so as to communicate with the oil storage space 12 of the oil pan 2, and the outer peripheral surface of the radial journal 7 is provided. A spiral groove 14 for pushing up oil is formed in at least one of the inner peripheral surface of the boss hole 5 and
The groove lower part 15 of the spiral groove 14 is connected to the oil storage space 12 in the oil pan 2 through the oil inlet 13, and the groove upper part 16 of the spiral groove 14 is connected between the boss upper surface 8 and the thrust journal 9. A lower journal bearing device for a rotating shaft of a vertical engine, characterized in that the lower journal bearing device is configured to communicate with the thrust bearing surfaces 17 of the rotary shaft of a vertical engine.