JPS551437A - Servo-motor automatic centering device - Google Patents

Servo-motor automatic centering device

Info

Publication number
JPS551437A
JPS551437A JP7424378A JP7424378A JPS551437A JP S551437 A JPS551437 A JP S551437A JP 7424378 A JP7424378 A JP 7424378A JP 7424378 A JP7424378 A JP 7424378A JP S551437 A JPS551437 A JP S551437A
Authority
JP
Japan
Prior art keywords
servo
motor
displacement
sleeve
upper cover
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
JP7424378A
Other languages
Japanese (ja)
Inventor
Hiroshi Muroi
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.)
Hitachi Ltd
Original Assignee
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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP7424378A priority Critical patent/JPS551437A/en
Publication of JPS551437A publication Critical patent/JPS551437A/en
Pending legal-status Critical Current

Links

Classifications

    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/20—Hydro energy

Landscapes

  • Servomotors (AREA)
  • Hydraulic Turbines (AREA)

Abstract

PURPOSE: To decrease the abnormal wear of each sliding portion, by detecting a location where a servo-motor operates and the quantity of an upper cover distorted, by transmitting the quantity of the variation to an auxiliary piston mounted to the servo-motor and by continually keeping cores between both constant.
CONSTITUTION: A location where a piston 5 operates is detected by means of a cam type detecting portion 6, the displacement is transmitted to a pilot valve 10 while the quantity of distortion displaced by hydraulic pressure Po applied to an upper cover 12 is detected by means of a pin type detecting portion 7, and the displacement is conveyer to a sleeve 9. The displacement is converted into relative change by means of the pilot valve 10 and the sleeve 9, and compressed oil P is changed over. In this case, compressed oil P limits the quantity of oil at the secondary side, which passes, changes pressure applied to the auxiliary piston 4 by the throttle effect of a regulating valve 11 and adjusts the pushing force of a servo-motor 1. Thus, a core of the servo-motor and a core of a guide ring can continually be kept constant.
COPYRIGHT: (C)1980,JPO&Japio
JP7424378A 1978-06-21 1978-06-21 Servo-motor automatic centering device Pending JPS551437A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7424378A JPS551437A (en) 1978-06-21 1978-06-21 Servo-motor automatic centering device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7424378A JPS551437A (en) 1978-06-21 1978-06-21 Servo-motor automatic centering device

Publications (1)

Publication Number Publication Date
JPS551437A true JPS551437A (en) 1980-01-08

Family

ID=13541516

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7424378A Pending JPS551437A (en) 1978-06-21 1978-06-21 Servo-motor automatic centering device

Country Status (1)

Country Link
JP (1) JPS551437A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57135691U (en) * 1981-02-19 1982-08-24
CN103670879A (en) * 2013-11-29 2014-03-26 南通高盛机械制造有限公司 Servomotor

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57135691U (en) * 1981-02-19 1982-08-24
JPS6212062Y2 (en) * 1981-02-19 1987-03-25
CN103670879A (en) * 2013-11-29 2014-03-26 南通高盛机械制造有限公司 Servomotor

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