SE8903000L - HYDRAULIC SERVOPA CLEARING DEVICE OF THE TYPE THAT HAS A COAXIAL ROTABLE SLIDE - Google Patents

HYDRAULIC SERVOPA CLEARING DEVICE OF THE TYPE THAT HAS A COAXIAL ROTABLE SLIDE

Info

Publication number
SE8903000L
SE8903000L SE8903000A SE8903000A SE8903000L SE 8903000 L SE8903000 L SE 8903000L SE 8903000 A SE8903000 A SE 8903000A SE 8903000 A SE8903000 A SE 8903000A SE 8903000 L SE8903000 L SE 8903000L
Authority
SE
Sweden
Prior art keywords
rotary spool
servopa
rotable
coaxial
hydraulic
Prior art date
Application number
SE8903000A
Other languages
Swedish (sv)
Other versions
SE8903000D0 (en
Inventor
G J Kim
Original Assignee
Kang Lim Co 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 Kang Lim Co Ltd filed Critical Kang Lim Co Ltd
Publication of SE8903000D0 publication Critical patent/SE8903000D0/en
Publication of SE8903000L publication Critical patent/SE8903000L/en

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
    • F15B13/00—Details of servomotor systems ; Valves for servomotor systems
    • F15B13/02—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
    • 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
    • F15B13/00—Details of servomotor systems ; Valves for servomotor systems

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Servomotors (AREA)
  • Actuator (AREA)

Abstract

PURPOSE: To make accurate and easy to control the position and speed of the final motion part by rotating a rotary spool by a stepping motor, and adjusting the degree of overlapping of the control path with the choke of a hollow piston. CONSTITUTION: A cylinder 15 is interposed between a rod cover 13 and head cover 14 having supply ports S1 and S2 , and outside the head cover 14 a stepping motor 12 is installed, and a rotary spool 18 is made drivable. A hollow piston 17 is inserted into the cylinder 15, and in the hollow the rotary spool 18 is inserted liquid-tightly, and with its rotation, the rate of overlapping of through holes C1 and C3 in the piston 17 with a groove provided in the rotary spool 18 is controlled. This makes accurate and easy the control of the position and speed of the final motion part, and the costs of fabrication and the easiness in maintenance works are enhanced.
SE8903000A 1989-04-24 1989-09-12 HYDRAULIC SERVOPA CLEARING DEVICE OF THE TYPE THAT HAS A COAXIAL ROTABLE SLIDE SE8903000L (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019890005395A KR910008268B1 (en) 1989-04-24 1989-04-24 Servo devices

Publications (2)

Publication Number Publication Date
SE8903000D0 SE8903000D0 (en) 1989-09-12
SE8903000L true SE8903000L (en) 1990-10-25

Family

ID=19285588

Family Applications (1)

Application Number Title Priority Date Filing Date
SE8903000A SE8903000L (en) 1989-04-24 1989-09-12 HYDRAULIC SERVOPA CLEARING DEVICE OF THE TYPE THAT HAS A COAXIAL ROTABLE SLIDE

Country Status (3)

Country Link
JP (1) JPH02286901A (en)
KR (1) KR910008268B1 (en)
SE (1) SE8903000L (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7735517B2 (en) * 2006-12-22 2010-06-15 Caterpillar Inc Rotary-actuated electro-hydraulic valve
JP5939673B2 (en) * 2012-03-27 2016-06-22 本田技研工業株式会社 Shift control device for toroidal transmission mechanism
CN108612697B (en) * 2018-06-07 2024-07-12 江苏钧微动力科技有限公司 Sheet valve core rotary direct-drive electrohydraulic servo valve
CN109404359A (en) * 2018-12-11 2019-03-01 中航工业南京伺服控制系统有限公司 A kind of rotary Electric hydraulic pressure servo valve

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5980501A (en) * 1982-10-27 1984-05-10 Kawasaki Heavy Ind Ltd Hydraulic servo-actuator
JPS62196403A (en) * 1986-02-22 1987-08-29 Techno-Le:Kk Electric-hydraulic cylinder

Also Published As

Publication number Publication date
KR900016625A (en) 1990-11-14
KR910008268B1 (en) 1991-10-12
SE8903000D0 (en) 1989-09-12
JPH02286901A (en) 1990-11-27

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