FR2304001A1 - Precision load adjustment for ball screws - has hydraulically controlled expanding ring fitted between screw nuts - Google Patents

Precision load adjustment for ball screws - has hydraulically controlled expanding ring fitted between screw nuts

Info

Publication number
FR2304001A1
FR2304001A1 FR7507671A FR7507671A FR2304001A1 FR 2304001 A1 FR2304001 A1 FR 2304001A1 FR 7507671 A FR7507671 A FR 7507671A FR 7507671 A FR7507671 A FR 7507671A FR 2304001 A1 FR2304001 A1 FR 2304001A1
Authority
FR
France
Prior art keywords
ball screws
load adjustment
hydraulically controlled
screw nuts
ring fitted
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
FR7507671A
Other languages
French (fr)
Other versions
FR2304001B1 (en
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.)
LEGUEU PIERRE
Original Assignee
LEGUEU PIERRE
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 LEGUEU PIERRE filed Critical LEGUEU PIERRE
Priority to FR7507671A priority Critical patent/FR2304001A1/en
Publication of FR2304001A1 publication Critical patent/FR2304001A1/en
Priority to BE172938A priority patent/BE849031Q/en
Application granted granted Critical
Publication of FR2304001B1 publication Critical patent/FR2304001B1/fr
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
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
    • B23Q5/00—Driving or feeding mechanisms; Control arrangements therefor
    • B23Q5/54—Arrangements or details not restricted to group B23Q5/02 or group B23Q5/22 respectively, e.g. control handles
    • B23Q5/56—Preventing backlash

Landscapes

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

Abstract

The ring (8) is placed between two nuts (2, 3) of a ball screw and consists of a body in one face of which is machined an annular slot. A cover ring is made with an annular projection which fits closely inside the groove. Seals complete the annular piston cylinder assembly which is connected via passages to tangential cylinders in which slide pistons, which may be adjusted by set screws. Initially, the cylinders are primed with fluid and the ring placed between the nuts (2, 3) on which it is located by a stud and a key (27) which is screwed (28) down into a milled notch (29). Subsequently, adjustment is made by tightening the piston screws, and the load can be determined by connecting a pressure manometer to the cylinder.
FR7507671A 1975-03-12 1975-03-12 Precision load adjustment for ball screws - has hydraulically controlled expanding ring fitted between screw nuts Granted FR2304001A1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
FR7507671A FR2304001A1 (en) 1975-03-12 1975-03-12 Precision load adjustment for ball screws - has hydraulically controlled expanding ring fitted between screw nuts
BE172938A BE849031Q (en) 1975-03-12 1976-12-03 ADJUSTABLE PRELOAD BALL SCREWS

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7507671A FR2304001A1 (en) 1975-03-12 1975-03-12 Precision load adjustment for ball screws - has hydraulically controlled expanding ring fitted between screw nuts

Publications (2)

Publication Number Publication Date
FR2304001A1 true FR2304001A1 (en) 1976-10-08
FR2304001B1 FR2304001B1 (en) 1977-11-18

Family

ID=9152450

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7507671A Granted FR2304001A1 (en) 1975-03-12 1975-03-12 Precision load adjustment for ball screws - has hydraulically controlled expanding ring fitted between screw nuts

Country Status (2)

Country Link
BE (1) BE849031Q (en)
FR (1) FR2304001A1 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1983002142A1 (en) * 1981-12-18 1983-06-23 Kearney & Trecker Corp Ball nut having adjustable preloading
US4487087A (en) * 1981-12-18 1984-12-11 Kearney & Trecker Corporation Ball nut having adustable preloading
CN106870667A (en) * 2017-02-28 2017-06-20 安徽江淮汽车集团股份有限公司 A kind of gap adjusting method and electric direction varying device

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2014053A1 (en) * 1968-07-31 1970-04-10 Marwin Machine Tools Ltd

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2014053A1 (en) * 1968-07-31 1970-04-10 Marwin Machine Tools Ltd

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1983002142A1 (en) * 1981-12-18 1983-06-23 Kearney & Trecker Corp Ball nut having adjustable preloading
US4487087A (en) * 1981-12-18 1984-12-11 Kearney & Trecker Corporation Ball nut having adustable preloading
CN106870667A (en) * 2017-02-28 2017-06-20 安徽江淮汽车集团股份有限公司 A kind of gap adjusting method and electric direction varying device

Also Published As

Publication number Publication date
FR2304001B1 (en) 1977-11-18
BE849031Q (en) 1977-04-01

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Legal Events

Date Code Title Description
TP Transmission of property
ST Notification of lapse