FR3068752B1 - MULTI-STAGE PRECISION TELESCOPIC SCREW - Google Patents

MULTI-STAGE PRECISION TELESCOPIC SCREW Download PDF

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Publication number
FR3068752B1
FR3068752B1 FR1770712A FR1770712A FR3068752B1 FR 3068752 B1 FR3068752 B1 FR 3068752B1 FR 1770712 A FR1770712 A FR 1770712A FR 1770712 A FR1770712 A FR 1770712A FR 3068752 B1 FR3068752 B1 FR 3068752B1
Authority
FR
France
Prior art keywords
stage
screw
guide
shaft
threaded
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.)
Active
Application number
FR1770712A
Other languages
French (fr)
Other versions
FR3068752A1 (en
Inventor
Felix Balmonet
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
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Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to FR1770712A priority Critical patent/FR3068752B1/en
Publication of FR3068752A1 publication Critical patent/FR3068752A1/en
Application granted granted Critical
Publication of FR3068752B1 publication Critical patent/FR3068752B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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
    • F16H25/2056—Telescopic screws with at least three screw members in coaxial arrangement
    • 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
    • F16H2025/204—Axial sliding means, i.e. for rotary support and axial guiding of nut or screw shaft

Landscapes

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

Abstract

L'invention concerne un dispositif de vis télescopique à plusieurs étages capable de mouvements de déploiement très précis de l'ordre du micromètre. Il est constitué d'une vis et d'au moins un guide qui a un rôle de guidage et maintient le système dans l'axe. La vis et le guide sont constitués d'au moins trois étages identiques. Mais ceux du guide, eux, ne sont pas filetés. Ces étages s'organisent ainsi : - le premier étage est un arbre comportant, sur sa partie inférieure , un épaulement fileté ; - le dernier étage est un arbre taraudé depuis le bas sur la quasi totalité de la hauteur de l'étage et alésé sur le reste de sa hauteur afin de laisser un épaulement de diamètre ajusté à l'arbre de la vis qu'il contient ; - l'étage intermédiaire est un arbre alésé extérieurement identique au premier étage et intérieurement identique au dernier. Quel que soit l'étage, les pas des filetages sont identiques. Le guide est fixé en ses extrémités et la vis est fixée en l'une de ses deux extrémités, alors que l'autre est placée sur un roulement et est actionnée par un moteur par le biais de poulies ou d'engrenages. Le système n'utilisant pas de fluides, il n'est pas sensible aux conditions météorologiques.Provided is a multistage telescopic screw device capable of very precise deployment movements of the order of micrometers. It consists of a screw and at least one guide which has a guiding role and maintains the system in the axis. The screw and the guide consist of at least three identical stages. But those of the guide are not threaded. These stages are organized as follows: - the first stage is a shaft comprising, on its lower part, a threaded shoulder; - the last stage is a shaft threaded from the bottom over almost the entire height of the stage and bored over the rest of its height in order to leave a shoulder of diameter adjusted to the shaft of the screw that it contains; - the intermediate stage is a bore shaft which is externally identical to the first stage and internally identical to the last. Whatever the stage, the thread pitches are identical. The guide is fixed at its ends and the screw is fixed at one of its two ends, while the other is placed on a bearing and is actuated by a motor through pulleys or gears. As the system does not use fluids, it is not sensitive to weather conditions.

FR1770712A 2017-07-05 2017-07-05 MULTI-STAGE PRECISION TELESCOPIC SCREW Active FR3068752B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR1770712A FR3068752B1 (en) 2017-07-05 2017-07-05 MULTI-STAGE PRECISION TELESCOPIC SCREW

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR1770712 2017-07-05
FR1770712A FR3068752B1 (en) 2017-07-05 2017-07-05 MULTI-STAGE PRECISION TELESCOPIC SCREW

Publications (2)

Publication Number Publication Date
FR3068752A1 FR3068752A1 (en) 2019-01-11
FR3068752B1 true FR3068752B1 (en) 2021-02-26

Family

ID=60515713

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1770712A Active FR3068752B1 (en) 2017-07-05 2017-07-05 MULTI-STAGE PRECISION TELESCOPIC SCREW

Country Status (1)

Country Link
FR (1) FR3068752B1 (en)

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61279522A (en) * 1985-06-05 1986-12-10 Ichikou Eng Kk Lifting device for unloader
FR2724208B1 (en) * 1994-09-07 1996-10-18 Commissariat Energie Atomique TELESCOPIC SYSTEM
KR100594390B1 (en) * 2000-01-28 2006-07-03 삼성전자주식회사 Robot with telescopic system
US9333469B2 (en) * 2011-03-09 2016-05-10 Distek, Inc. Multi-motion assembly for leadscrew system
DE102012211712A1 (en) * 2012-07-05 2014-01-09 Aktiebolaget Skf Table with at least one guide unit

Also Published As

Publication number Publication date
FR3068752A1 (en) 2019-01-11

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