JPS592780U - Hoisting winch control circuit - Google Patents
Hoisting winch control circuitInfo
- Publication number
- JPS592780U JPS592780U JP9662482U JP9662482U JPS592780U JP S592780 U JPS592780 U JP S592780U JP 9662482 U JP9662482 U JP 9662482U JP 9662482 U JP9662482 U JP 9662482U JP S592780 U JPS592780 U JP S592780U
- Authority
- JP
- Japan
- Prior art keywords
- control circuit
- hoisting
- clutch
- hoisting winch
- pressure oil
- 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
Landscapes
- Jib Cranes (AREA)
- Control And Safety Of Cranes (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図は本考案が対象としている移動式クレーンの側面
図、第２図は本考案の巻上用ウィンチの制御回路図であ
る。
１１・・・ドラム軸、１４・・・巻上ドラム、１９・・
・クラッチ制御回路、２０・・・クラッチシリンダ、２
１・・・油圧ポンプ、２２・・・クラッチ制御弁、２４
・・・ポジティブブレーキ、２５・・・ブレーキペダル
、２８・・・電磁切換弁、２９・・・第１リミツトスイ
ツチ、３０・・・第２リミツトスイツチ、３２・・・電
源、３３・・・電気制御回路。FIG. 1 is a side view of a mobile crane to which the present invention is directed, and FIG. 2 is a control circuit diagram of the hoisting winch of the present invention. 11...Drum shaft, 14...Hoisting drum, 19...
・Clutch control circuit, 20...clutch cylinder, 2
1... Hydraulic pump, 22... Clutch control valve, 24
... Positive brake, 25... Brake pedal, 28... Solenoid switching valve, 29... First limit switch, 30... Second limit switch, 32... Power supply, 33... Electric control circuit .
Claims (1)
離を行うクラッチシリンダ及び油圧ポンプの吐出圧油を
切換制御するクラッチ制御弁を有するクラッチ制御回路
と、ブレーキペダルの踏込み操作により前記巻上ドラム
の回転を停止させるポジティブブレーキとを備えた巻上
ウィンチにおいて、前記クラッチシリンダと前記クラ−
ツチ制御弁との間のクラッチ制御回路に電磁切換弁を挿
入し、該電磁切換弁の制御部と、前記ブレーキペダルの
フルストローク操作によって切換えられるリミットスイ
ッチと、前記巻上ドラムの回転感知により切換えられる
リミットスイッチと、電源とを直列に接続した電気制御
回路を設け、ポジティブブレーキのブレーキ力の低下時
に、前記電磁切換弁を切換えて前記油圧ポンプの吐出圧
油をクラッチシリンダへ供給するように構成したことを
特徴とする巻上用ウィンチの制御回路。A clutch control circuit includes a clutch cylinder that connects and disconnects the hoisting drum and drum shaft by supplying and discharging pressure oil, a clutch control valve that switches and controls the pressure oil discharged from the hydraulic pump, and a brake pedal depression operation. In the hoisting winch, the hoisting winch is equipped with a positive brake that stops the rotation of the hoisting drum.
An electromagnetic switching valve is inserted into the clutch control circuit between the control valve and the switching is performed by the control section of the electromagnetic switching valve, a limit switch that is switched by full stroke operation of the brake pedal, and rotation detection of the hoisting drum. An electric control circuit is provided in which a limit switch connected to a power source is connected in series, and when the braking force of the positive brake decreases, the electromagnetic switching valve is switched to supply pressure oil discharged from the hydraulic pump to the clutch cylinder. A control circuit for a hoisting winch, which is characterized by:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9662482U JPS592780U (en) | 1982-06-29 | 1982-06-29 | Hoisting winch control circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9662482U JPS592780U (en) | 1982-06-29 | 1982-06-29 | Hoisting winch control circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS592780U true JPS592780U (en) | 1984-01-09 |
Family
ID=30230194
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9662482U Pending JPS592780U (en) | 1982-06-29 | 1982-06-29 | Hoisting winch control circuit |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS592780U (en) |
-
1982
- 1982-06-29 JP JP9662482U patent/JPS592780U/en active Pending
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