JPS6154096U - - Google Patents

Info

Publication number
JPS6154096U
JPS6154096U JP13848984U JP13848984U JPS6154096U JP S6154096 U JPS6154096 U JP S6154096U JP 13848984 U JP13848984 U JP 13848984U JP 13848984 U JP13848984 U JP 13848984U JP S6154096 U JPS6154096 U JP S6154096U
Authority
JP
Japan
Prior art keywords
switching valve
actuator
sensor
hydraulic
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
JP13848984U
Other languages
Japanese (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 JP13848984U priority Critical patent/JPS6154096U/ja
Publication of JPS6154096U publication Critical patent/JPS6154096U/ja
Pending legal-status Critical Current

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  • Drilling And Exploitation, And Mining Machines And Methods (AREA)
  • Control Of Vehicle Engines Or Engines For Specific Uses (AREA)
  • Fluid-Pressure Circuits (AREA)

Description

【図面の簡単な説明】[Brief explanation of the drawing]

第１図は本考案に係る油圧回路の一実施例を示
す回路図、第２図は同回路に使用される電気回路
図を示す。 １……エンジン、２ａ，２ｂ，２ｃ……ポンプ
、５……切換弁、６……圧力スイツチ、７……モ
ータ、８……パイルアツプバルブ、９……引きシ
リンダー、１０……ピストンロツド、１３……圧
力スイツチ、１６……圧力スイツチ、１７……切
換弁、１９……切換弁、３２１……流量スイツチ
、２２……タンク。 FIG. 1 is a circuit diagram showing an embodiment of a hydraulic circuit according to the present invention, and FIG. 2 is an electric circuit diagram used in the circuit. DESCRIPTION OF SYMBOLS 1...Engine, 2a, 2b, 2c...Pump, 5...Switching valve, 6...Pressure switch, 7...Motor, 8...Pile-up valve, 9...Pulling cylinder, 10...Piston rod, 13 ...Pressure switch, 16...Pressure switch, 17...Switching valve, 19...Switching valve, 321...Flow rate switch, 22...Tank.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] エンジンによつて回転駆動される１乃至数個の
ポンプを有し、該ポンプの吐出管路に流量制御弁
及び油圧アクチユエータを設けたクローラドリル
の油圧回路において、油圧アクチユエータに送油
されないときこれを圧力乃至流量で検知するセン
サーと、該センサーによつて制御される切換弁と
、該切換弁によつて圧油が切換供給され、エンジ
ンの回転数を制御するガバナーレバーを作動する
アクチユエータを設けた油圧回路。 In the hydraulic circuit of a crawler drill, which has one or several pumps rotationally driven by an engine, and a flow control valve and a hydraulic actuator are installed in the discharge pipe of the pump, this is used when oil is not being sent to the hydraulic actuator. A sensor that detects pressure or flow rate, a switching valve controlled by the sensor, and an actuator to which pressurized oil is selectively supplied by the switching valve and actuates a governor lever that controls the engine speed. Hydraulic circuit.
JP13848984U 1984-09-11 1984-09-11 Pending JPS6154096U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP13848984U JPS6154096U (en) 1984-09-11 1984-09-11

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13848984U JPS6154096U (en) 1984-09-11 1984-09-11

Publications (1)

Publication Number Publication Date
JPS6154096U true JPS6154096U (en) 1986-04-11

Family

ID=30696881

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13848984U Pending JPS6154096U (en) 1984-09-11 1984-09-11

Country Status (1)

Country Link
JP (1) JPS6154096U (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57100292A (en) * 1980-12-11 1982-06-22 Furukawa Kogyo Kk Control apparatus of rotary drilling machine

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57100292A (en) * 1980-12-11 1982-06-22 Furukawa Kogyo Kk Control apparatus of rotary drilling machine

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