JPH0323699U

JPH0323699U -

Info

Publication number: JPH0323699U
Application number: JP8304389U
Authority: JP
Priority date: 1989-07-17
Filing date: 1989-07-17
Publication date: 1991-03-12

Description

[Brief explanation of drawings]

第１図は本考案に係わるたて型ガス圧縮機の一
実施例を示す縦断側面図、第２図はその軸受潤滑
構造の一具体例を示す縦断側面図、第３図は従来
のたて型ガス圧縮機の一例を示す縦断側面図、第
４図はその軸受潤滑構造例を示す縦断側面図であ
る。１……インペラ、２……回転軸、３……ねじ式
オイルシール、４……ラビリンスシール、５，６
，７……軸受、５……内側のボールベアリング、
５ａ……内輪、５ｂ……外輪、５ｃ……リテーナ
、５ｄ……ボール、６……外側のベアリングホル
ダ、６ａ……半径方向排油孔、６ｂ……軸方向排
油孔、７……振動防止用ダンパ、８……ケーシン
グ、９……給気口、１０……排気口、１１……オ
イルバス。 Fig. 1 is a vertical side view showing an embodiment of a vertical gas compressor according to the present invention, Fig. 2 is a longitudinal side view showing a specific example of its bearing lubrication structure, and Fig. 3 is a vertical side view showing an example of a conventional vertical gas compressor. FIG. 4 is a longitudinal side view showing an example of a type gas compressor, and FIG. 4 is a longitudinal side view showing an example of the bearing lubrication structure. 1... Impeller, 2... Rotating shaft, 3... Threaded oil seal, 4... Labyrinth seal, 5, 6
, 7...Bearing, 5...Inner ball bearing,
5a... Inner ring, 5b... Outer ring, 5c... Retainer, 5d... Ball, 6... Outer bearing holder, 6a... Radial oil drain hole, 6b... Axial oil drain hole, 7... Vibration Prevention damper, 8...Casing, 9...Air supply port, 10...Exhaust port, 11...Oil bath.

Claims

[Claims for Utility Model Registration] 1. A casing, a rotating shaft with an impeller at its upper end, a bearing that rotatably supports the rotating shaft within the casing, and the surroundings of the rotating shaft portion above the bearing. A vertical gas compressor having a labyrinth seal provided in the casing and an impeller supply/exhaust port provided in the casing, characterized in that a threaded oil seal is provided between the labyrinth seal and the bearing. Vertical type gas compressor. 2. A casing, a rotating shaft having an impeller at its upper end, a bearing rotatably supporting the rotating shaft within the casing, and a labyrinth seal disposed around the rotating shaft above the bearing; In the vertical gas compressor having an impeller supply and exhaust port provided in the casing, the bearing is composed of an inner ball bearing and an outer bearing holder, and the outer bearing holder has an axial oil drain hole. A vertical gas compressor characterized by having a hole.