JPS56147954A - Retainerless ball screw - Google Patents

Retainerless ball screw

Info

Publication number
JPS56147954A
JPS56147954A JP4959680A JP4959680A JPS56147954A JP S56147954 A JPS56147954 A JP S56147954A JP 4959680 A JP4959680 A JP 4959680A JP 4959680 A JP4959680 A JP 4959680A JP S56147954 A JPS56147954 A JP S56147954A
Authority
JP
Japan
Prior art keywords
ball
nut
sides
ball screw
rolling grooves
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
JP4959680A
Other languages
Japanese (ja)
Inventor
Hiroshi Teramachi
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to JP4959680A priority Critical patent/JPS56147954A/en
Publication of JPS56147954A publication Critical patent/JPS56147954A/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
    • F16H—GEARING
    • F16H25/00—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms
    • F16H25/18—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms for conveying or interconverting oscillating or reciprocating motions
    • F16H25/20—Screw mechanisms
    • F16H25/22—Screw mechanisms with balls, rollers, or similar members between the co-operating parts; Elements essential to the use of such members
    • F16H25/2204—Screw mechanisms with balls, rollers, or similar members between the co-operating parts; Elements essential to the use of such members with balls
    • F16H25/2214—Screw mechanisms with balls, rollers, or similar members between the co-operating parts; Elements essential to the use of such members with balls with elements for guiding the circulating balls
    • 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
    • F16H—GEARING
    • F16H25/00—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms
    • F16H25/18—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms for conveying or interconverting oscillating or reciprocating motions
    • F16H25/20—Screw mechanisms
    • F16H25/22—Screw mechanisms with balls, rollers, or similar members between the co-operating parts; Elements essential to the use of such members
    • F16H25/2204—Screw mechanisms with balls, rollers, or similar members between the co-operating parts; Elements essential to the use of such members with balls
    • F16H25/2209—Screw mechanisms with balls, rollers, or similar members between the co-operating parts; Elements essential to the use of such members with balls with arrangements for taking up backlash

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Transmission Devices (AREA)

Abstract

PURPOSE:To obtain at low cost a stable retainerless ball screw without backlash, by forming ball rolling grooves in a nut at both sides of widened-shaped spiral grooves and mounting ball guides, guiding balls, to the nut. CONSTITUTION:To a top part flat face 11 formed by cutting one side of a round sectional nut 10, extension holes 14-17, to which front and rear end sides of return pipes 12, 13 are inserted as two ball guides, are formed, then the return pipes 12, 13 are fixed by a return plate retainer 20. Between female screws 25... formed on inner circumference of the nut 10, an almost U-shaped sectional wide spiral groove 21 is formed, at both sides of which ball rolling grooves 23, 24 are formed. While at both sides of a spiral groove 34 formed between male screws 31 provided in outer circumference of a ball screw shaft 30, ball rolling grooves 32, 33 are formed, then between these ball rolling grooves 23, 24, 32, 34 and in the return pipes 12, 13, many balls 22 are arranged in two rows to form a ball screw.
JP4959680A 1980-04-17 1980-04-17 Retainerless ball screw Pending JPS56147954A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4959680A JPS56147954A (en) 1980-04-17 1980-04-17 Retainerless ball screw

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4959680A JPS56147954A (en) 1980-04-17 1980-04-17 Retainerless ball screw

Publications (1)

Publication Number Publication Date
JPS56147954A true JPS56147954A (en) 1981-11-17

Family

ID=12835604

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4959680A Pending JPS56147954A (en) 1980-04-17 1980-04-17 Retainerless ball screw

Country Status (1)

Country Link
JP (1) JPS56147954A (en)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60173752U (en) * 1984-04-26 1985-11-18 黒田精工株式会社 ball screw
JPS60173753U (en) * 1984-04-26 1985-11-18 黒田精工株式会社 ball screw
US4841796A (en) * 1986-05-19 1989-06-27 Hiroshi Teramachi Ball screw having an axially extending ball deflector
KR20010044498A (en) * 2001-02-28 2001-06-05 정무길 Cutting-working installations for freezing medium pipes having a precision transterring device
JP2004068996A (en) * 2002-08-08 2004-03-04 Nsk Ltd Ball screw
JP2011089573A (en) * 2009-10-21 2011-05-06 Talk System Co Ltd Ball screw
WO2022210223A1 (en) * 2021-03-31 2022-10-06 日本精工株式会社 Multi-row ball screw
WO2022210462A1 (en) 2021-03-31 2022-10-06 日本精工株式会社 Ball screw device

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4993767A (en) * 1972-10-20 1974-09-06

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4993767A (en) * 1972-10-20 1974-09-06

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60173752U (en) * 1984-04-26 1985-11-18 黒田精工株式会社 ball screw
JPS60173753U (en) * 1984-04-26 1985-11-18 黒田精工株式会社 ball screw
US4841796A (en) * 1986-05-19 1989-06-27 Hiroshi Teramachi Ball screw having an axially extending ball deflector
KR20010044498A (en) * 2001-02-28 2001-06-05 정무길 Cutting-working installations for freezing medium pipes having a precision transterring device
JP2004068996A (en) * 2002-08-08 2004-03-04 Nsk Ltd Ball screw
JP2011089573A (en) * 2009-10-21 2011-05-06 Talk System Co Ltd Ball screw
WO2022210223A1 (en) * 2021-03-31 2022-10-06 日本精工株式会社 Multi-row ball screw
WO2022210462A1 (en) 2021-03-31 2022-10-06 日本精工株式会社 Ball screw device

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