JPS604636U - hydraulic rock drill - Google Patents

hydraulic rock drill

Info

Publication number
JPS604636U
JPS604636U JP9328583U JP9328583U JPS604636U JP S604636 U JPS604636 U JP S604636U JP 9328583 U JP9328583 U JP 9328583U JP 9328583 U JP9328583 U JP 9328583U JP S604636 U JPS604636 U JP S604636U
Authority
JP
Japan
Prior art keywords
hydraulic
switching valve
orifice
rock drill
iwatsuki
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
JP9328583U
Other languages
Japanese (ja)
Other versions
JPH0320359Y2 (en
Inventor
利樹 田中
裕行 荏原
Original Assignee
北越工業株式会社
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 北越工業株式会社 filed Critical 北越工業株式会社
Priority to JP9328583U priority Critical patent/JPS604636U/en
Publication of JPS604636U publication Critical patent/JPS604636U/en
Application granted granted Critical
Publication of JPH0320359Y2 publication Critical patent/JPH0320359Y2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Shovels (AREA)
  • Drilling And Exploitation, And Mining Machines And Methods (AREA)
  • Earth Drilling (AREA)
  • Fluid-Pressure Circuits (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 the drawing]

第４図及び第５図は従来の液圧式さく岩槻における油圧
回路を示すものである。第１図〜第３図はそれぞれ本考
案の第１実施例〜第３実施例を示す油圧回路である。 １０・・・第１ポンプ、１１・・・第２ポンプ、１２゜
２０．２１・・・コントロールバルブ、１３・・・油圧
ブレーカ、１７・・・大径オリフィス、１８・・・小径
オリ　′フイス、１９・・・オリフィス切換弁。 ｆ“３ １１　飼　　１ｔ　　土FIG. 4 and FIG. 5 show the hydraulic circuit in a conventional hydraulic type rock drill. 1 to 3 are hydraulic circuits showing first to third embodiments of the present invention, respectively. 10...First pump, 11...Second pump, 12゜20.21...Control valve, 13...Hydraulic breaker, 17...Large diameter orifice, 18...Small diameter orifice , 19... Orifice switching valve. f“3 11 feed 1t soil

Claims (4)

【実用新案登録請求の範囲】[Scope of utility model registration request] （１）第１及び第２のポンプをコントロールバルブを介
して液圧式さく岩槻のアクチュエータ及び台車コントロ
ールバルブへそれぞれ接続すると共に、前記液圧式さく
岩槻のアクチュエータの排液回路中にオリフィス切換弁
を設けたことを特徴とする液圧式さく岩槻。(1) The first and second pumps are connected to the hydraulic Iwatsuki actuator and the truck control valve through control valves, and an orifice switching valve is provided in the drain circuit of the hydraulic Iwatsuki actuator. Hydraulic type Iwatsuki is characterized by: （２）前記オリフィス切換弁は大径及び小径オリフィス
を備える二位置切換弁から成り、このオリフィス切換弁
に、二のポンプを液圧式さく岩槻のアクチュエータに接
続する回路を分岐接続して二のポンプからの作動油をパ
イロット圧としてオリフィス切換弁を大径のオリフィス
へ切り換えることを特徴とする実用新案登録請求の範囲
第１項記載の液圧式さく岩槻。(2) The orifice switching valve consists of a two-position switching valve with a large-diameter and a small-diameter orifice, and a circuit connecting the second pump to the hydraulic Iwatsuki actuator is branch-connected to the orifice switching valve, and the second pump is connected to the orifice switching valve. 2. The hydraulic rock drill according to claim 1, wherein the orifice switching valve is switched to a large-diameter orifice by using hydraulic oil from the tank as pilot pressure. （３）前記オリフィス切換弁を電磁弁とした実用新案登
録請求の範囲第１項記載の液圧式さく岩槻。(3) The hydraulic type rock drill according to claim 1, wherein the orifice switching valve is a solenoid valve. （４）　　前記第１゛及び第２ポンプにそれぞれコシト
ロールバルフヲ接続シ、該コントロールバルフヲ介して
液圧式さく岩槻のアクチュエータ及び台車コントロール
バルブへ前記二のポンプをそれぞれ切換接続自在に設け
た実用新案登録請求の範囲第１項又は第３項記載の液圧
式さく岩槻。(4) Practical use in which the first and second pumps are connected to cositrol valves, respectively, and the two pumps are switchably connected to the actuator and truck control valve of the hydraulic rock drill through the control valves, respectively. Hydraulic type rock drill according to claim 1 or 3 of the new patent claim.
JP9328583U 1983-06-20 1983-06-20 hydraulic rock drill Granted JPS604636U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9328583U JPS604636U (en) 1983-06-20 1983-06-20 hydraulic rock drill

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9328583U JPS604636U (en) 1983-06-20 1983-06-20 hydraulic rock drill

Publications (2)

Publication Number Publication Date
JPS604636U true JPS604636U (en) 1985-01-14
JPH0320359Y2 JPH0320359Y2 (en) 1991-05-01

Family

ID=30224014

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9328583U Granted JPS604636U (en) 1983-06-20 1983-06-20 hydraulic rock drill

Country Status (1)

Country Link
JP (1) JPS604636U (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5380304A (en) * 1976-12-23 1978-07-15 Krupp Gmbh Impact device that stroke can be adjusted by remote control and that can be operated by pressure medium
JPS56142979U (en) * 1980-03-29 1981-10-28

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5380304A (en) * 1976-12-23 1978-07-15 Krupp Gmbh Impact device that stroke can be adjusted by remote control and that can be operated by pressure medium
JPS56142979U (en) * 1980-03-29 1981-10-28

Also Published As

Publication number Publication date
JPH0320359Y2 (en) 1991-05-01

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