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JPS5577004A - Rotary material driving unit - Google Patents

Rotary material driving unit

Info

Publication number
JPS5577004A
JPS5577004A JP14972178A JP14972178A JPS5577004A JP S5577004 A JPS5577004 A JP S5577004A JP 14972178 A JP14972178 A JP 14972178A JP 14972178 A JP14972178 A JP 14972178A JP S5577004 A JPS5577004 A JP S5577004A
Authority
JP
Japan
Prior art keywords
rotary material
rotary
iron core
oppositely
rotor
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
JP14972178A
Other languages
Japanese (ja)
Other versions
JPS6362822B2 (en
Inventor
Kazutoshi Miura
Shigeru Tanaka
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.)
Toshiba Corp
Original Assignee
Toshiba Corp
Tokyo Shibaura Electric 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 Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP14972178A priority Critical patent/JPS5577004A/en
Publication of JPS5577004A publication Critical patent/JPS5577004A/en
Publication of JPS6362822B2 publication Critical patent/JPS6362822B2/ja
Granted legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C32/00—Bearings not otherwise provided for
    • F16C32/04—Bearings not otherwise provided for using magnetic or electric supporting means
    • F16C32/0406—Magnetic bearings
    • F16C32/044—Active magnetic bearings
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B3/00—Recording by mechanical cutting, deforming or pressing, e.g. of grooves or pits; Reproducing by mechanical sensing; Record carriers therefor
    • G11B3/60—Turntables for record carriers

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Rotational Drive Of Disk (AREA)
  • Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)

Abstract

PURPOSE: To make a rotary part contactless completely to prevent generation of noise accompanied with rotation by floating and supporting the rotary material by an electromagnet in a record player and guiding and supporting the material above at the center position.
CONSTITUTION: Axis 8 provided at the center of rotary material 5 is protruded into aperture 1a of the upper face of box body 1 and holds turntable 9, and iron core 2 where three-phase winding 3 is wound is provided near aperture 1a, and DC magnets 4 are mounted in positions trisected on the circumference in the outside of iron core 2 and suck and float magnetically rotary material 5. Rotor 6 provided on rotary material 5 constitutes a flat synchronous motor oppositely to iron core 2, and DC electromagnets 11 which are divided into four are arranged oppositely in the side face of outside circumference part 5b of rotor 5 and hold always rotary material 5 at the center position. Further, three displacement meters 10 are provided oppositely to rotary material 5, and two displacement meters 12 are provided in positions of adjacent magnets 11, and these meters are connected to a control unit.
COPYRIGHT: (C)1980,JPO&Japio
JP14972178A 1978-12-05 1978-12-05 Rotary material driving unit Granted JPS5577004A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14972178A JPS5577004A (en) 1978-12-05 1978-12-05 Rotary material driving unit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14972178A JPS5577004A (en) 1978-12-05 1978-12-05 Rotary material driving unit

Publications (2)

Publication Number Publication Date
JPS5577004A true JPS5577004A (en) 1980-06-10
JPS6362822B2 JPS6362822B2 (en) 1988-12-05

Family

ID=15481356

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14972178A Granted JPS5577004A (en) 1978-12-05 1978-12-05 Rotary material driving unit

Country Status (1)

Country Link
JP (1) JPS5577004A (en)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4999003A (en) * 1973-01-29 1974-09-19
JPS5010430A (en) * 1973-06-04 1975-02-03
JPS5043342A (en) * 1973-07-27 1975-04-19

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4999003A (en) * 1973-01-29 1974-09-19
JPS5010430A (en) * 1973-06-04 1975-02-03
JPS5043342A (en) * 1973-07-27 1975-04-19

Also Published As

Publication number Publication date
JPS6362822B2 (en) 1988-12-05

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