JPS579301A - Electric oil-pressure servo device - Google Patents

Electric oil-pressure servo device

Info

Publication number
JPS579301A
JPS579301A JP8131480A JP8131480A JPS579301A JP S579301 A JPS579301 A JP S579301A JP 8131480 A JP8131480 A JP 8131480A JP 8131480 A JP8131480 A JP 8131480A JP S579301 A JPS579301 A JP S579301A
Authority
JP
Japan
Prior art keywords
pressure
oil
flow rate
terms
input shaft
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
JP8131480A
Other languages
Japanese (ja)
Inventor
Saburo Kawabe
Hiroshi Oota
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.)
Nisshin Sangyo KK
Original Assignee
Nisshin Sangyo KK
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 Nisshin Sangyo KK filed Critical Nisshin Sangyo KK
Priority to JP8131480A priority Critical patent/JPS579301A/en
Priority to DE19813123820 priority patent/DE3123820A1/en
Publication of JPS579301A publication Critical patent/JPS579301A/en
Pending legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B9/00—Servomotors with follow-up action, e.g. obtained by feed-back control, i.e. in which the position of the actuated member conforms with that of the controlling member
    • F15B9/02—Servomotors with follow-up action, e.g. obtained by feed-back control, i.e. in which the position of the actuated member conforms with that of the controlling member with servomotors of the reciprocatable or oscillatable type
    • F15B9/04—Servomotors with follow-up action, e.g. obtained by feed-back control, i.e. in which the position of the actuated member conforms with that of the controlling member with servomotors of the reciprocatable or oscillatable type controlled by varying the output of a pump with variable capacity

Abstract

PURPOSE: To obtain an electric oil-pressure servo device having a consistent tracking accuracy regardless of varying loads by connecting objects to be driven or intermediate members by a differential mechanism leading to a detector and controlling an oil-pressure circuit driving the object by detected signal in terms of flow rate.
CONSTITUTION: When a commander 5, e.g., stepping motor, turns and an input shaft 5a is rotated in the direction of arrow, relative turning occurs between a differential member 1a coupled with the input shaft 5a through a helical strip 9 and an output shaft 6a, and thereby the differential member 1a moves in one direction. By this, a passive frame 14 moves along a rail 15 through an annular projection 1b to move the operation part of a variable resistor 3. Thus, the current of an electric circuit 11 with a power source 18 is varied and a proportionally controlled electromagnetic reducing valve 4v is controlled. Then, a pressure corresponding to pressure oil for the pilot of an oil pressure source 19 is put in the connecting port 2a to control a variable flow oil-pressure pump 2 in terms of flow rate in order to keep the revolving number of the oil-pressure motor 7 in a given one.
COPYRIGHT: (C)1982,JPO&Japio
JP8131480A 1980-06-18 1980-06-18 Electric oil-pressure servo device Pending JPS579301A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP8131480A JPS579301A (en) 1980-06-18 1980-06-18 Electric oil-pressure servo device
DE19813123820 DE3123820A1 (en) 1980-06-18 1981-06-16 Electrohydraulic servo mechanism

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8131480A JPS579301A (en) 1980-06-18 1980-06-18 Electric oil-pressure servo device

Publications (1)

Publication Number Publication Date
JPS579301A true JPS579301A (en) 1982-01-18

Family

ID=13742926

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8131480A Pending JPS579301A (en) 1980-06-18 1980-06-18 Electric oil-pressure servo device

Country Status (2)

Country Link
JP (1) JPS579301A (en)
DE (1) DE3123820A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3433415B2 (en) * 1997-04-21 2003-08-04 アイダエンジニアリング株式会社 Slide drive of press machine

Also Published As

Publication number Publication date
DE3123820A1 (en) 1982-04-08

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