JPS61152091U - - Google Patents

Info

Publication number
JPS61152091U
JPS61152091U JP3092585U JP3092585U JPS61152091U JP S61152091 U JPS61152091 U JP S61152091U JP 3092585 U JP3092585 U JP 3092585U JP 3092585 U JP3092585 U JP 3092585U JP S61152091 U JPS61152091 U JP S61152091U
Authority
JP
Japan
Prior art keywords
drifter
hydraulic circuit
hydraulic
switching
switching valve
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
JP3092585U
Other languages
English (en)
Other versions
JPH0348316Y2 (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 JP3092585U priority Critical patent/JPH0348316Y2/ja
Publication of JPS61152091U publication Critical patent/JPS61152091U/ja
Application granted granted Critical
Publication of JPH0348316Y2 publication Critical patent/JPH0348316Y2/ja
Expired legal-status Critical Current

Links

Landscapes

  • Drilling And Exploitation, And Mining Machines And Methods (AREA)
  • Earth Drilling (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
の油圧回路の実施例で、第１図は停止状態、第２
図は高油圧状態、第３図は低油圧状態を示す。第
４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……リリーフバルブ、１
１……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切換弁と、ドリフタ
    の打撃用の油圧回路のリリーフ弁の設定圧力を切
    換える切換弁とが連動することを特徴とする油圧
    クローラドリルの油圧回路。
JP3092585U 1985-03-06 1985-03-06 Expired JPH0348316Y2 (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3092585U JPH0348316Y2 (ja) 1985-03-06 1985-03-06

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3092585U JPH0348316Y2 (ja) 1985-03-06 1985-03-06

Publications (2)

Publication Number Publication Date
JPS61152091U true JPS61152091U (ja) 1986-09-19
JPH0348316Y2 JPH0348316Y2 (ja) 1991-10-15

Family

ID=30531060

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3092585U Expired JPH0348316Y2 (ja) 1985-03-06 1985-03-06

Country Status (1)

Country Link
JP (1) JPH0348316Y2 (ja)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2020002604A (ja) * 2018-06-27 2020-01-09 古河ロックドリル株式会社 穿孔制御装置

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2020002604A (ja) * 2018-06-27 2020-01-09 古河ロックドリル株式会社 穿孔制御装置

Also Published As

Publication number Publication date
JPH0348316Y2 (ja) 1991-10-15

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