JPH0343593U

JPH0343593U -

Info

Publication number: JPH0343593U
Application number: JP10551489U
Authority: JP
Priority date: 1989-09-07
Filing date: 1989-09-07
Publication date: 1991-04-24
Anticipated expiration: 2004-07-27
Also published as: JPH0627839Y2

Description

[Brief explanation of drawings]

第１図ないし第８図は本考案の第１実施例を示
しており、第１図はベルト駆動形スクリユ圧縮機
の縦断面図、第２図は第１図の−線断面図、
第３図は同一部切欠き側面図、第４図はエンジン
駆動形スクリユ圧縮機の断面図、第５図は圧縮気
体吐出口廻りの断面図、第６図は第１図の−
線断面図、第７図はバイパス弁の断面図、第８図
は底面図、第９図は第２実施例を示す縦断面図、
第１０図および第１１図は第３実施例を示してお
り、第１０図はベルト駆動形スクリユ圧縮機の断
面図、第１１図は駆動機直結形スクリユ圧縮機の
断面図、第１２図Ａ，Ｂ，Ｃ，Ｄ，Ｅは軸受の概
略説明図である。１……ケーシング、２，３……スクリユロータ
、１３……気体吸入口、１４……圧縮気体吐出口
、３７，３８，４１，４２……軸、３９，４０，
４４……軸受、４１Ａ……軸部、４３……ベルト
駆動用軸受、４６，７４……駆動軸、４７……挿
入穴、４９……プーリ、５０……エンジン（駆動
機）、５１，７５，７６……駆動機直結用軸受、
５７……取付座、５８……直結用ハウジング、７
８……突部（中間部材）、Ｇ…気体、Ｏ……潤滑
油。 1 to 8 show a first embodiment of the present invention, in which FIG. 1 is a longitudinal sectional view of a belt-driven screw compressor, FIG. 2 is a sectional view taken along the line -- in FIG. 1, and FIG.
Fig. 3 is a partially cutaway side view of the same part, Fig. 4 is a cross-sectional view of the engine-driven screw compressor, Fig. 5 is a cross-sectional view of the area around the compressed gas discharge port, and Fig. 6 is a - of Fig. 1.
A line sectional view, FIG. 7 is a sectional view of the bypass valve, FIG. 8 is a bottom view, and FIG. 9 is a vertical sectional view showing the second embodiment.
10 and 11 show a third embodiment, in which FIG. 10 is a cross-sectional view of a belt-driven screw compressor, FIG. 11 is a cross-sectional view of a screw compressor directly connected to a drive unit, and FIG. 12A is a cross-sectional view of a screw compressor with a direct drive. , B, C, D, and E are schematic illustrations of bearings. 1... Casing, 2, 3... Screw rotor, 13... Gas inlet, 14... Compressed gas discharge port, 37, 38, 41, 42... Shaft, 39, 40,
44... Bearing, 41A... Shaft, 43... Belt drive bearing, 46, 74... Drive shaft, 47... Insertion hole, 49... Pulley, 50... Engine (driver), 51, 75 , 76...Bearing for direct connection to drive machine,
57...Mounting seat, 58...Direct connection housing, 7
8... Projection (intermediate member), G... Gas, O... Lubricating oil.

Claims

[Claims for Utility Model Registration] (1) A pair of male and female screw rotors that mesh with each other and rotate are housed in a casing, and the gas inlet side shaft and the compressed gas discharge port side shaft of these screw rotors are connected to the end face side of the screw rotor. A screw compressor, which is supported by bearings installed at each side, and a drive shaft is formed by extending a shaft portion to one of the shafts on the gas inlet side, and a belt drive pulley or a drive device is connected to the drive shaft. An insertion hole for a drive shaft bearing provided in the casing is formed so that a belt drive bearing or a bearing for direct connection to the drive machine can be selectively provided, and an insertion hole for the drive shaft bearing is formed on the outer end surface of the casing on the drive shaft side for direct connection to the drive machine. A screw compressor characterized by forming a mounting seat for selectively mounting a housing. (2) The screw compressor according to claim 1, wherein an intermediate member is interposed between the inner circumferential surface of the insertion hole and the outer circumferential surface of the bearing for direct connection to the drive machine to support the drive shaft of the screw rotor.