JPS5887496U - Pump motor speed control device - Google Patents
Pump motor speed control deviceInfo
- Publication number
- JPS5887496U JPS5887496U JP1981182288U JP18228881U JPS5887496U JP S5887496 U JPS5887496 U JP S5887496U JP 1981182288 U JP1981182288 U JP 1981182288U JP 18228881 U JP18228881 U JP 18228881U JP S5887496 U JPS5887496 U JP S5887496U
- Authority
- JP
- Japan
- Prior art keywords
- pump motor
- control device
- speed
- speed control
- motor speed
- 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
- 238000010586 diagram Methods 0.000 description 3
Landscapes
- Forklifts And Lifting Vehicles (AREA)
- Control Of Direct Current Motors (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
第１図は本考案の速度制御回路図、第２図は揚高システ
ム図、第３図は揚高センサの特性図である。
１６・・・マスト、１７・・・フォーク、１８・・・揚
高センサ、１９・・・制御回路、２０・・・チョッパ回
路、２１・・・ポンプ、２２・・・コントロールバルブ
、２３・・・リフトシリンダ、２４・・・指令入力。FIG. 1 is a speed control circuit diagram of the present invention, FIG. 2 is a lift height system diagram, and FIG. 3 is a characteristic diagram of a lift height sensor. 16... Mast, 17... Fork, 18... Lift height sensor, 19... Control circuit, 20... Chopper circuit, 21... Pump, 22... Control valve, 23...・Lift cylinder, 24...Command input.
Claims (1)
ロールバルブ、シリンダ、揚高センサで形成されるポン
プモータ制御装置において、揚高センサの位置出力を微
分することにより、揚高速度を検知し、所定の速度に制
御することを特徴とするポンプモータの速度制御装置。 ２ 実用新案登録請求の範囲第１項において、特に揚高
値を下げる時、所定の速度以上になった場合、チョッパ
回路を油圧回路の油の流れと逆に動作させ所定の速度を
維持することを特徴とするポンプモータの速度制御装置
。[Scope of Claim for Utility Model Registration] 1. In a pump motor control device formed by a pump motor, a chopper circuit, a pump, a controller, a troll valve, a cylinder, and a lift height sensor, by differentiating the position output of the lift height sensor, A speed control device for a pump motor, which detects a high speed and controls the speed to a predetermined speed. 2 Claims for Utility Model Registration Paragraph 1 states that, especially when lowering the lifting height, if the speed exceeds a predetermined value, the chopper circuit is operated in the opposite direction to the flow of oil in the hydraulic circuit to maintain the predetermined speed. Features: Pump motor speed control device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1981182288U JPS5887496U (en) | 1981-12-09 | 1981-12-09 | Pump motor speed control device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1981182288U JPS5887496U (en) | 1981-12-09 | 1981-12-09 | Pump motor speed control device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5887496U true JPS5887496U (en) | 1983-06-14 |
Family
ID=29980525
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1981182288U Pending JPS5887496U (en) | 1981-12-09 | 1981-12-09 | Pump motor speed control device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5887496U (en) |
-
1981
- 1981-12-09 JP JP1981182288U patent/JPS5887496U/en active Pending
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