JPS6351188U - - Google Patents
Info
- Publication number
- JPS6351188U JPS6351188U JP14600186U JP14600186U JPS6351188U JP S6351188 U JPS6351188 U JP S6351188U JP 14600186 U JP14600186 U JP 14600186U JP 14600186 U JP14600186 U JP 14600186U JP S6351188 U JPS6351188 U JP S6351188U
- Authority
- JP
- Japan
- Prior art keywords
- rotary shaft
- induction motor
- connects
- control device
- vacuum gauge
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 230000006698 induction Effects 0.000 claims description 6
- 238000010586 diagram Methods 0.000 description 6
- 238000006243 chemical reaction Methods 0.000 description 1
Description
第１図ａは本考案の第１の実施例の構成図、第
１図ｂは誘導電動機のトルク変化特性図（第１実
施例動作説明図）、第２図ａは第２の実施例の構
成図、第２図ｂは第２実施例でとり上げた周波数
変換波形図、第３図は従来技術による粗引き系統
図。
１……油回転ポンプ、２……誘導電動機、３…
…三相交流電源、４……回転軸、５……固定子、
６……回転子、７……スリツプリング、８……外
部抵抗（Ｒｓ）、９……周波数変換器、１０……
スロー粗引バルブ、１１……粗引バルブ、１２…
…真空装置、１３……粗引配管、１４……真空計
、１５……制御装置。
Fig. 1a is a block diagram of the first embodiment of the present invention, Fig. 1b is a torque change characteristic diagram of the induction motor (explanatory diagram of the operation of the first embodiment), and Fig. 2a is a diagram of the second embodiment. FIG. 2b is a frequency conversion waveform diagram taken up in the second embodiment, and FIG. 3 is a rough drawing system diagram according to the prior art. 1...Oil rotary pump, 2...Induction motor, 3...
... Three-phase AC power supply, 4 ... Rotating shaft, 5 ... Stator,
6...Rotor, 7...Slip ring, 8...External resistance (Rs), 9...Frequency converter, 10...
Slow roughing valve, 11... Roughing valve, 12...
...Vacuum device, 13...Roughing piping, 14...Vacuum gauge, 15...Control device.
Claims (1)
を接続する構造と、誘導電動機に回転速度制御装
置を接続する構造と、粗引き配管内に真空計をと
り付ける構造と、真空計からの真空度信号を回転
速度制御装置にフイードバツクさせる構造とを有
することを特徴とする、速度制御装置付油回転ポ
ンプ。 A structure that connects the rotary shaft of an oil rotary pump and a rotary shaft of an induction motor, a structure that connects a rotation speed control device to the induction motor, a structure that attaches a vacuum gauge to the roughing piping, and a structure that connects the rotary shaft of an oil rotary pump to the rotary shaft of an induction motor, a structure that attaches a vacuum gauge to the roughing piping, and a vacuum gauge that connects the rotary shaft of an induction motor. 1. An oil rotary pump with a speed control device, characterized in that it has a structure that feeds back a rotational speed signal to a rotation speed control device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14600186U JPS6351188U (en) | 1986-09-22 | 1986-09-22 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14600186U JPS6351188U (en) | 1986-09-22 | 1986-09-22 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6351188U true JPS6351188U (en) | 1988-04-06 |
Family
ID=31058058
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14600186U Pending JPS6351188U (en) | 1986-09-22 | 1986-09-22 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6351188U (en) |
-
1986
- 1986-09-22 JP JP14600186U patent/JPS6351188U/ja active Pending
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