JPS646535A - Variable load device by magnetic fluid - Google Patents

Variable load device by magnetic fluid

Info

Publication number
JPS646535A
JPS646535A JP62159890A JP15989087A JPS646535A JP S646535 A JPS646535 A JP S646535A JP 62159890 A JP62159890 A JP 62159890A JP 15989087 A JP15989087 A JP 15989087A JP S646535 A JPS646535 A JP S646535A
Authority
JP
Japan
Prior art keywords
variable load
shaft
load
magnetic fluid
electromagnet
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
JP62159890A
Other languages
Japanese (ja)
Inventor
Masayuki Hosoya
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.)
NSK Ltd
Original Assignee
NSK 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 NSK Ltd filed Critical NSK Ltd
Priority to JP62159890A priority Critical patent/JPS646535A/en
Publication of JPS646535A publication Critical patent/JPS646535A/en
Pending 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
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D57/00—Liquid-resistance brakes; Brakes using the internal friction of fluids or fluid-like media, e.g. powders
    • F16D57/002—Liquid-resistance brakes; Brakes using the internal friction of fluids or fluid-like media, e.g. powders comprising a medium with electrically or magnetically controlled internal friction, e.g. electrorheological fluid, magnetic powder

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Braking Arrangements (AREA)

Abstract

PURPOSE:To provide a variable load device which does not produce the load of the drive force of a varying member, by a method wherein a variable load member by magnetic fluid is mounted to a securing member with a gap between the variable load member and the moving member. CONSTITUTION:A shaft (varying member) 2 of a magnetic material is mounted to a cylindrical housing (securing member) 1 through a bearing 3, and an annular variable load member F is mounted in the housing 1 with a gap (g) between the shaft 2 and the variable load member. In this constitution, with an electromagnet 4 energized, a magnetic circuit is formed between the electromagnet 4 and the shaft 2, and magnetic fluid 6 in a container 5 is concentrated to a portion having high magnetism density. As a result, the container 5 is resiliently deformed and is pressed against the shaft 2 for adhesion, and a friction force generated at a current time is exerted as a load on the drive force of the shaft 2. The load can be continuously set to arbitrary intensity through control of a current to the electromagnet 4.
JP62159890A 1987-06-29 1987-06-29 Variable load device by magnetic fluid Pending JPS646535A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62159890A JPS646535A (en) 1987-06-29 1987-06-29 Variable load device by magnetic fluid

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62159890A JPS646535A (en) 1987-06-29 1987-06-29 Variable load device by magnetic fluid

Publications (1)

Publication Number Publication Date
JPS646535A true JPS646535A (en) 1989-01-11

Family

ID=15703413

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62159890A Pending JPS646535A (en) 1987-06-29 1987-06-29 Variable load device by magnetic fluid

Country Status (1)

Country Link
JP (1) JPS646535A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002130342A (en) * 2000-10-23 2002-05-09 Oriental Motor Co Ltd Non-excitation actuated type electromagnetic brake
JP2021147803A (en) * 2020-03-17 2021-09-27 株式会社フジタ Lock bolt fixed in single operation

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002130342A (en) * 2000-10-23 2002-05-09 Oriental Motor Co Ltd Non-excitation actuated type electromagnetic brake
JP2021147803A (en) * 2020-03-17 2021-09-27 株式会社フジタ Lock bolt fixed in single operation

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