JPS5899286U - Hydraulic winch with free fall device - Google Patents

Hydraulic winch with free fall device

Info

Publication number
JPS5899286U
JPS5899286U JP19308981U JP19308981U JPS5899286U JP S5899286 U JPS5899286 U JP S5899286U JP 19308981 U JP19308981 U JP 19308981U JP 19308981 U JP19308981 U JP 19308981U JP S5899286 U JPS5899286 U JP S5899286U
Authority
JP
Japan
Prior art keywords
valve
free fall
hydraulic winch
fall device
winch
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.)
Granted
Application number
JP19308981U
Other languages
Japanese (ja)
Other versions
JPS6216475Y2 (en
Inventor
和明 井上
Original Assignee
住友重機械工業株式会社
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by 住友重機械工業株式会社 filed Critical 住友重機械工業株式会社
Priority to JP19308981U priority Critical patent/JPS5899286U/en
Publication of JPS5899286U publication Critical patent/JPS5899286U/en
Application granted granted Critical
Publication of JPS6216475Y2 publication Critical patent/JPS6216475Y2/ja
Granted legal-status Critical Current

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  • Fluid-Pressure Circuits (AREA)
  • Jib 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

【図面の簡単な説明】[Brief explanation of drawings]

第１図は本考案を実施したウィンチ油圧回路、第２図は
リモコン弁特性図、第３図はコントロール弁特性図、第
４図はカウンターバランス弁特性図。 図において＝１・・・・・・作動油タンク、２・・・・
・・ポンプ、３・・・・・・コントロール弁、４・・・
・・・カンバラ弁、５・・・・・−モーター　６・・・
・・・リモコン弁、？−−−−−−シャツトル弁、８・
・・・・・チェック弁、９・・・・・・自動ブレーキ解
放シリンダ。Fig. 1 shows a winch hydraulic circuit in which the present invention is implemented, Fig. 2 shows a remote control valve characteristic diagram, Fig. 3 shows a control valve characteristic diagram, and Fig. 4 shows a counterbalance valve characteristic diagram. In the diagram = 1...Hydraulic oil tank, 2...
...Pump, 3...Control valve, 4...
... Kambara valve, 5...-motor 6...
...Remote control valve? --------Shuttle valve, 8・
...Check valve, 9...Automatic brake release cylinder.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 油圧ポンプ２とモータ５とをコントロール弁３とカウン
ターバランス弁４を介して接続したウィンチ巻上・巻下
用の油圧回路において、カウンターバランス弁４を外部
パイロット式とし、かつそのパイロット圧ポートをシャ
トル弁７を介してリモコン弁６と、巻下側管路とに接続
したことを特徴とする自由降下装置付油圧ウィンチ。In a winch hoisting/lowering hydraulic circuit in which a hydraulic pump 2 and a motor 5 are connected via a control valve 3 and a counterbalance valve 4, the counterbalance valve 4 is an external pilot type, and its pilot pressure port is a shuttle type. A hydraulic winch with a free-falling device, characterized in that it is connected to a remote control valve 6 and a lower hoisting conduit via a valve 7.
JP19308981U 1981-12-28 1981-12-28 Hydraulic winch with free fall device Granted JPS5899286U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP19308981U JPS5899286U (en) 1981-12-28 1981-12-28 Hydraulic winch with free fall device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP19308981U JPS5899286U (en) 1981-12-28 1981-12-28 Hydraulic winch with free fall device

Publications (2)

Publication Number Publication Date
JPS5899286U true JPS5899286U (en) 1983-07-06
JPS6216475Y2 JPS6216475Y2 (en) 1987-04-25

Family

ID=30106460

Family Applications (1)

Application Number Title Priority Date Filing Date
JP19308981U Granted JPS5899286U (en) 1981-12-28 1981-12-28 Hydraulic winch with free fall device

Country Status (1)

Country Link
JP (1) JPS5899286U (en)

Also Published As

Publication number Publication date
JPS6216475Y2 (en) 1987-04-25

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