JPH0325687U - - Google Patents

Info

Publication number
JPH0325687U
JPH0325687U JP8500589U JP8500589U JPH0325687U JP H0325687 U JPH0325687 U JP H0325687U JP 8500589 U JP8500589 U JP 8500589U JP 8500589 U JP8500589 U JP 8500589U JP H0325687 U JPH0325687 U JP H0325687U
Authority
JP
Japan
Prior art keywords
hydraulic
hydraulic pump
tightening mechanism
rotating member
elevating member
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
JP8500589U
Other languages
English (en)
Other versions
JP2513198Y2 (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 JP1989085005U priority Critical patent/JP2513198Y2/ja
Publication of JPH0325687U publication Critical patent/JPH0325687U/ja
Application granted granted Critical
Publication of JP2513198Y2 publication Critical patent/JP2513198Y2/ja
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Landscapes

  • Earth Drilling (AREA)
  • Fluid-Pressure Circuits (AREA)

Description

【図面の簡単な説明】
第１図は本考案の実施例に係る油圧回路図、第
２図は従来例を示す全体の側視機構図、第３図は
第２図の締付機構図、第４図は従来例の油圧回路
図、第５図は従来例の要部を示す側視機構図、第
６図は従来例の制御回路図、第７図は第５図の底
面図、第８図は他の従来例の要部を示す側視機構
図、第９図は第８図の底面図、第１０図は従来例
の制御回路図である。 １……ケーシングチユーブ、５……押込ジヤツ
キ、３ａ……昇降部材、３ｅ……旋回部材、４ｃ
……開閉締付ジヤツキ、８……油圧ポンプ、９…
…油圧モータ、４ａ，４ｂ……締付機構。

Claims (1)

    【実用新案登録請求の範囲】
  1. 昇降可能に且つ旋回不能に支持された昇降部材
    と、同昇降部材に装着され旋回駆動される旋回部
    材と、同旋回部材に装着されケーシングチユーブ
    を把持する締付機構とを具えたボーリングマシン
    において、前記旋回部材に配設され前記締付機構
    を開閉する油圧ポンプと油圧パイロツト切換弁と
    の間に圧力差発生部材を設け、前記昇降部材に前
    記油圧ポンプを駆動する正逆転油圧モータを配置
    し、前記油圧ポンプの回転方向に変えることによ
    り油圧パイロツト切換弁を切換え締付機構を開閉
    するように構成したことを特徴とするボーリング
    マシンのケーシングチユーブ締付装置。
JP1989085005U 1989-07-21 1989-07-21 ボ―リングマシンのケ―シングチュ―ブ締付装置 Expired - Lifetime JP2513198Y2 (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1989085005U JP2513198Y2 (ja) 1989-07-21 1989-07-21 ボ―リングマシンのケ―シングチュ―ブ締付装置

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1989085005U JP2513198Y2 (ja) 1989-07-21 1989-07-21 ボ―リングマシンのケ―シングチュ―ブ締付装置

Publications (2)

Publication Number Publication Date
JPH0325687U true JPH0325687U (ja) 1991-03-15
JP2513198Y2 JP2513198Y2 (ja) 1996-10-02

Family

ID=31633869

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1989085005U Expired - Lifetime JP2513198Y2 (ja) 1989-07-21 1989-07-21 ボ―リングマシンのケ―シングチュ―ブ締付装置

Country Status (1)

Country Link
JP (1) JP2513198Y2 (ja)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5568994A (en) * 1978-11-21 1980-05-24 Onoda Cement Co Ltd Device for automatically opening*closing rod holder and chuck of drilling machine in connection with each other

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5568994A (en) * 1978-11-21 1980-05-24 Onoda Cement Co Ltd Device for automatically opening*closing rod holder and chuck of drilling machine in connection with each other

Also Published As

Publication number Publication date
JP2513198Y2 (ja) 1996-10-02

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Legal Events

Date Code Title Description
EXPY Cancellation because of completion of term