JPH0246091U

JPH0246091U -

Info

Publication number: JPH0246091U
Application number: JP12354288U
Authority: JP
Priority date: 1988-09-21
Filing date: 1988-09-21
Publication date: 1990-03-29

Description

[Brief explanation of drawings]

添付図面は本考案の実施例を示し、第１図は縦
断面図、第２図は一部の分解斜視図、第３図は第
１図Ａ〜Ａ線断面図、第４図は第１図Ｂ〜Ｂ線断
面図、第５図は第１図Ｃ〜Ｃ線断面図、第６図は
機枠４６の正面図、第７図は同側面図であつて一
部を省略して示す。１……ケーシング、２，２ａ……ハウジング、
５……ポンプ駆動軸、７……第１ケーシング、８
……第２ケーシング、９……第３ケーシング、１
０ａ，１０ｂ，１１ａ，１１ｂ……区劃板、１２
……第１ポンプ室、１３……第２ポンプ室、１４
……第３ポンプ室、１５，１６，１７……ロータ
、２１……通路、２４……通路、２５……フイル
タケース、２７……吸込管、２８……フイルター
ケース、３０……吐出管、３１……従動ヨーク、
３２……従動マグネツト、３４……キヤン、３５
……駆動ヨーク、３６……駆動マグネツト、３７
……取付筒、４０……モータ軸。 The accompanying drawings show an embodiment of the present invention, in which Fig. 1 is a longitudinal sectional view, Fig. 2 is a partially exploded perspective view, Fig. 3 is a sectional view taken along line A-A in Fig. Figure 5 is a sectional view taken along the line C-C in Figure 1, Figure 6 is a front view of the machine frame 46, and Figure 7 is a side view of the same, with some parts omitted. . 1... Casing, 2, 2a... Housing,
5... Pump drive shaft, 7... First casing, 8
...Second casing, 9...Third casing, 1
0a, 10b, 11a, 11b... Ward board, 12
...First pump room, 13...Second pump room, 14
... Third pump chamber, 15, 16, 17 ... Rotor, 21 ... Passage, 24 ... Passage, 25 ... Filter case, 27 ... Suction pipe, 28 ... Filter case, 30 ... Discharge pipe, 31...driven yoke,
32... Driven magnet, 34... Can, 35
... Drive yoke, 36 ... Drive magnet, 37
...Mounting tube, 40...Motor shaft.

Claims

[Scope of utility model registration request]

The pump drive shaft supported by housings at both ends is eccentrically passed through the casing, the casing is partitioned by partition walls to provide multi-stage pump chambers, and in each pump chamber a rotor attached to the pump drive shaft is connected to the inner surface of the casing. In a vacuum rotary pump with rotating vanes that can be freely moved in and out, a passage is formed in each partition wall to communicate the discharge port of a front chamber and the suction port of a rear chamber connected to the front chamber, and the pump projects from one housing. A driven yoke with a driven magnet inserted at one end of the drive shaft is attached, the yoke is enclosed and sealed by a can fixed to the housing, and a driving yoke with a driving magnet inserted in the outer periphery of the can that interlocks and rotates the driven yoke is connected to the motor. A multi-stage vacuum rotary pump characterized by being attached to a shaft.