JPH01176147U - - Google Patents

Info

Publication number
JPH01176147U
JPH01176147U JP7015888U JP7015888U JPH01176147U JP H01176147 U JPH01176147 U JP H01176147U JP 7015888 U JP7015888 U JP 7015888U JP 7015888 U JP7015888 U JP 7015888U JP H01176147 U JPH01176147 U JP H01176147U
Authority
JP
Japan
Prior art keywords
hydraulic
hammer
switching valve
valve
pipes
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
JP7015888U
Other languages
English (en)
Other versions
JPH0626574Y2 (ja
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 filed Critical
Priority to JP7015888U priority Critical patent/JPH0626574Y2/ja
Publication of JPH01176147U publication Critical patent/JPH01176147U/ja
Application granted granted Critical
Publication of JPH0626574Y2 publication Critical patent/JPH0626574Y2/ja
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Landscapes

  • Placing Or Removing Of Piles Or Sheet Piles, Or Accessories Thereof (AREA)

Description

【図面の簡単な説明】
第１図は本考案の一実施例の説明図、第２図は
従来例の説明図である。 図中１は油圧源、２は方向切換弁、３，４は管
路、５は選択弁、６，７は管路、８は油圧モータ
、１０，１４，１６は管路を示す。

Claims (1)

    【実用新案登録請求の範囲】
  1. 油圧オーガ回転用の油圧モータと該油圧モータ
    へ供給する油の流れ方向を制御する方向切換弁を
    ２本の管路により接続し、該管路のうち一方の管
    路に３ポート２位置切換弁から成る選択弁を設け
    、該選択弁の反方向切換弁側を、油圧ハンマ上昇
    時に容積が増大する油圧ハンマ昇降用の油圧シリ
    ンダ油室に接続し、油圧ハンマ下降時に容積が増
    大する油圧ハンマ昇降用の油圧シリンダ油室を前
    記選択弁及び方向切換弁を介さずにタンクへ接続
    したことを特徴とする油圧ハンマ及び油圧オーガ
    の操作回路。
JP7015888U 1988-05-27 1988-05-27 油圧ハンマ及び油圧オーガの操作回路 Expired - Lifetime JPH0626574Y2 (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7015888U JPH0626574Y2 (ja) 1988-05-27 1988-05-27 油圧ハンマ及び油圧オーガの操作回路

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7015888U JPH0626574Y2 (ja) 1988-05-27 1988-05-27 油圧ハンマ及び油圧オーガの操作回路

Publications (2)

Publication Number Publication Date
JPH01176147U true JPH01176147U (ja) 1989-12-15
JPH0626574Y2 JPH0626574Y2 (ja) 1994-07-20

Family

ID=31295416

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7015888U Expired - Lifetime JPH0626574Y2 (ja) 1988-05-27 1988-05-27 油圧ハンマ及び油圧オーガの操作回路

Country Status (1)

Country Link
JP (1) JPH0626574Y2 (ja)

Also Published As

Publication number Publication date
JPH0626574Y2 (ja) 1994-07-20

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