JPS5445453A - Ball circulation tube for ball screw - Google Patents

Ball circulation tube for ball screw

Info

Publication number
JPS5445453A
JPS5445453A JP11047177A JP11047177A JPS5445453A JP S5445453 A JPS5445453 A JP S5445453A JP 11047177 A JP11047177 A JP 11047177A JP 11047177 A JP11047177 A JP 11047177A JP S5445453 A JPS5445453 A JP S5445453A
Authority
JP
Japan
Prior art keywords
nut
tube
ball
tubes
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
JP11047177A
Other languages
Japanese (ja)
Inventor
Kenichi Sugita
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 JP11047177A priority Critical patent/JPS5445453A/en
Publication of JPS5445453A publication Critical patent/JPS5445453A/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

Landscapes

  • Transmission Devices (AREA)

Abstract

PURPOSE: To make a ball screw nut of a complete cylinder having a uniform thickness and required of no notches, by exposing parts of ball circulation tubes embedded in the nut and fitting the parts with pullout members for tool engagement.
CONSTITUTION: Tube grooves 15 oblique as to the axis of a screw shaft 11 are provided on the peripheral surface of the nut 12. The ball circulation tubes 14 are embedded in the grooves 15 to such an extent that the tubes do not project from the peripheral surface of the nut 12. Two holes 17 extending to the inside surface of the nut 12 are provided at the bottom of each tube groove 15 and fit to curved parts of the tube 14. The tube 14 having both its ends 14A inserted in the holes 17 has a projection 14B at the top of each curved part. The tube 14 can be easily pulled out by engaging a screwdriver with the projection 14B and then pulling the screwdriver. Therefore, it is not necessary to provide the nut 12 with any grooves for pulling out the tubes, and the nut can have a cylindrical form effective for heat treatment and strength
COPYRIGHT: (C)1979,JPO&Japio
JP11047177A 1977-09-16 1977-09-16 Ball circulation tube for ball screw Pending JPS5445453A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11047177A JPS5445453A (en) 1977-09-16 1977-09-16 Ball circulation tube for ball screw

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11047177A JPS5445453A (en) 1977-09-16 1977-09-16 Ball circulation tube for ball screw

Publications (1)

Publication Number Publication Date
JPS5445453A true JPS5445453A (en) 1979-04-10

Family

ID=14536536

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11047177A Pending JPS5445453A (en) 1977-09-16 1977-09-16 Ball circulation tube for ball screw

Country Status (1)

Country Link
JP (1) JPS5445453A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59171221U (en) * 1983-04-30 1984-11-15 三和テッキ株式会社 Solid lubricated ball bearing
US4604911A (en) * 1982-02-26 1986-08-12 Hiroshi Teramachi Recirculating-ball rotary-to-linear converter with an improved ball return guide
US4750378A (en) * 1986-11-13 1988-06-14 Sheppard Peter H Ball screw mechanism

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4604911A (en) * 1982-02-26 1986-08-12 Hiroshi Teramachi Recirculating-ball rotary-to-linear converter with an improved ball return guide
JPS59171221U (en) * 1983-04-30 1984-11-15 三和テッキ株式会社 Solid lubricated ball bearing
JPS6323613Y2 (en) * 1983-04-30 1988-06-29
US4750378A (en) * 1986-11-13 1988-06-14 Sheppard Peter H Ball screw mechanism

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