JPS5320080A - Two speed motor hydraulic control system - Google Patents

Two speed motor hydraulic control system

Info

Publication number
JPS5320080A
JPS5320080A JP9340676A JP9340676A JPS5320080A JP S5320080 A JPS5320080 A JP S5320080A JP 9340676 A JP9340676 A JP 9340676A JP 9340676 A JP9340676 A JP 9340676A JP S5320080 A JPS5320080 A JP S5320080A
Authority
JP
Japan
Prior art keywords
control system
hydraulic control
speed motor
motor hydraulic
high speed
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
JP9340676A
Other languages
Japanese (ja)
Inventor
Hiroshi Fujikawa
Tatsushi Hatano
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Kawasaki Heavy Industries Ltd
Original Assignee
Kawasaki Heavy Industries Ltd
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 Kawasaki Heavy Industries Ltd filed Critical Kawasaki Heavy Industries Ltd
Priority to JP9340676A priority Critical patent/JPS5320080A/en
Publication of JPS5320080A publication Critical patent/JPS5320080A/en
Pending legal-status Critical Current

Links

Landscapes

  • Fluid-Pressure Circuits (AREA)
  • Control Of Fluid Pressure (AREA)

Abstract

PURPOSE: For the overload at the high speed driving, the motor is made to automatically be switched over from high speed to low speed thus to secure working safety and also with intention to simplify the operation and exclude wrong operation.
COPYRIGHT: (C)1978,JPO&Japio
JP9340676A 1976-08-04 1976-08-04 Two speed motor hydraulic control system Pending JPS5320080A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9340676A JPS5320080A (en) 1976-08-04 1976-08-04 Two speed motor hydraulic control system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9340676A JPS5320080A (en) 1976-08-04 1976-08-04 Two speed motor hydraulic control system

Publications (1)

Publication Number Publication Date
JPS5320080A true JPS5320080A (en) 1978-02-23

Family

ID=14081407

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9340676A Pending JPS5320080A (en) 1976-08-04 1976-08-04 Two speed motor hydraulic control system

Country Status (1)

Country Link
JP (1) JPS5320080A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62132002A (en) * 1985-12-04 1987-06-15 Hitachi Constr Mach Co Ltd Hydraulic driving device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62132002A (en) * 1985-12-04 1987-06-15 Hitachi Constr Mach Co Ltd Hydraulic driving device
JPH0517961B2 (en) * 1985-12-04 1993-03-10 Hitachi Construction Machinery

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