JPS61152092U - - Google Patents

Info

Publication number
JPS61152092U
JPS61152092U JP3092685U JP3092685U JPS61152092U JP S61152092 U JPS61152092 U JP S61152092U JP 3092685 U JP3092685 U JP 3092685U JP 3092685 U JP3092685 U JP 3092685U JP S61152092 U JPS61152092 U JP S61152092U
Authority
JP
Japan
Prior art keywords
drifter
hydraulic
pressure
relief valve
hydraulic circuit
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
Application number
JP3092685U
Other languages
English (en)
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 JP3092685U priority Critical patent/JPS61152092U/ja
Publication of JPS61152092U publication Critical patent/JPS61152092U/ja
Pending legal-status Critical Current

Links

Landscapes

  • Earth Drilling (AREA)
  • Drilling And Exploitation, And Mining Machines And Methods (AREA)

Description

【図面の簡単な説明】
第1図乃至第3図は本考案油圧クローラドリル
のドリフタ送り装置の油圧回路の実施例を示し、
第1図は停止状態、第2図は超油圧状態、第3図
は高油圧状態を示す。第4図は本考案による油圧
回路の他の実施例を示す。第5図は油圧クローラ
ドリルの外観図である。 1,2,3……油圧ポンプ、4,5,6,7…
…切換弁、8,9,10……リリーフ弁、11…
…送り用油圧モータ、12……ドリフタの打撃部

Claims (1)

    【実用新案登録請求の範囲】
  1. ドリフタの送り用モータの前進側の圧力によつ
    て設定圧力が切換わるリリーフ弁をドリフタの打
    撃用油圧回路に設けたことを特徴とする油圧クロ
    ーラドリルのドリフタ送り装置。
JP3092685U 1985-03-06 1985-03-06 Pending JPS61152092U (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3092685U JPS61152092U (ja) 1985-03-06 1985-03-06

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3092685U JPS61152092U (ja) 1985-03-06 1985-03-06

Publications (1)

Publication Number Publication Date
JPS61152092U true JPS61152092U (ja) 1986-09-19

Family

ID=30531062

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3092685U Pending JPS61152092U (ja) 1985-03-06 1985-03-06

Country Status (1)

Country Link
JP (1) JPS61152092U (ja)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5750917A (en) * 1980-09-04 1982-03-25 Syntex Inc Contraceptive composition containing imidazole derivative

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5750917A (en) * 1980-09-04 1982-03-25 Syntex Inc Contraceptive composition containing imidazole derivative

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