JPS5473380A - Hydraulic circuit for hobbing machines or the like - Google Patents

Hydraulic circuit for hobbing machines or the like

Info

Publication number
JPS5473380A
JPS5473380A JP14067077A JP14067077A JPS5473380A JP S5473380 A JPS5473380 A JP S5473380A JP 14067077 A JP14067077 A JP 14067077A JP 14067077 A JP14067077 A JP 14067077A JP S5473380 A JPS5473380 A JP S5473380A
Authority
JP
Japan
Prior art keywords
valve
hydraulic motor
change
over
hydraulic pump
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
JP14067077A
Other languages
Japanese (ja)
Other versions
JPS6214367B2 (en
Inventor
Tatsutomo Nishihara
Kazuo Aoki
Akira Dobashi
Mineo Takahashi
Kichiya Igura
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.)
KASHIFUJI KIKAI KK
Hitachi Ltd
Original Assignee
KASHIFUJI KIKAI KK
Hitachi 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 KASHIFUJI KIKAI KK, Hitachi Ltd filed Critical KASHIFUJI KIKAI KK
Priority to JP14067077A priority Critical patent/JPS5473380A/en
Publication of JPS5473380A publication Critical patent/JPS5473380A/en
Publication of JPS6214367B2 publication Critical patent/JPS6214367B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Gear Processing (AREA)
  • Fluid-Pressure Circuits (AREA)

Abstract

PURPOSE: To make a hydraulic motor highly responsive to the variation in revolutions thereof in raising the torque thereof by providing a throttle valve with a check valve for throttling on return duct side between a flexible pipe and a hydraulic pump.
CONSTITUTION: A flexible piping 9 is provided between a change-over valve 4 and a hydraulic motor 8 to supply pressure oil from a hydraulic pump 2 to a hydraulic motor 8 while change-over is made by said change-over valve 4. Further, a throttle valve 10 with a check valve for throttling on return duct side is provided between said flexible piping 9 and a hydraulic pump 2, and a reducing valve 12 between said change-over valve 4 and a tank 3. The response time to the increase of the load of said hydraulic motor 8 is reduced. This is utilized to raise the torque of said hydraulic motor 8 so that the seizure between a hob and works is prevented.
COPYRIGHT: (C)1979,JPO&Japio
JP14067077A 1977-11-25 1977-11-25 Hydraulic circuit for hobbing machines or the like Granted JPS5473380A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14067077A JPS5473380A (en) 1977-11-25 1977-11-25 Hydraulic circuit for hobbing machines or the like

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14067077A JPS5473380A (en) 1977-11-25 1977-11-25 Hydraulic circuit for hobbing machines or the like

Publications (2)

Publication Number Publication Date
JPS5473380A true JPS5473380A (en) 1979-06-12
JPS6214367B2 JPS6214367B2 (en) 1987-04-02

Family

ID=15274020

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14067077A Granted JPS5473380A (en) 1977-11-25 1977-11-25 Hydraulic circuit for hobbing machines or the like

Country Status (1)

Country Link
JP (1) JPS5473380A (en)

Also Published As

Publication number Publication date
JPS6214367B2 (en) 1987-04-02

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