Processing

Please wait...

Settings

Settings

Goto Application

1. WO2020094937 - PLANETARY ROLLER SCREW MECHANISM

Publication Number WO/2020/094937
Publication Date 14.05.2020
International Application No. PCT/FR2019/052472
International Filing Date 18.10.2019
Chapter 2 Demand Filed 02.03.2020
IPC
F16H 55/08 2006.01
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
16ENGINEERING ELEMENTS OR UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
HGEARING
55Elements with teeth or friction surfaces for conveying motion; Worms, pulleys or sheaves for gearing mechanisms
02Toothed members; Worms
08Profiling
F16H 1/34 2006.01
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
16ENGINEERING ELEMENTS OR UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
HGEARING
1Toothed gearings for conveying rotary motion
28with gears having orbital motion
34involving gears essentially having intermeshing elements other than involute or cycloidal teeth
Applicants
  • ABEVI, Folly [TG]/[FR]
Inventors
  • ABEVI, Folly
Agents
  • PRUGNEAU-SCHAUB
Priority Data
FR186027008.11.2018FR
Publication Language French (FR)
Filing Language French (FR)
Designated States
Title
(EN) PLANETARY ROLLER SCREW MECHANISM
(FR) MÉCANISME DE VIS A ROULEAUX SATELLITES
Abstract
(EN)
The invention relates to a roller screw mechanism (100) comprising a screw (110) provided with an external thread (110F), and a nut (130) coaxially surrounding the thread and provided with an internal thread (130F); each of the rollers (120) being provided with an external thread (120F) and inserted between the screw and the nut, each roller having two ends each provided with an external toothing (120D), each external toothing having, in transverse cross-section, an outer diameter less than or equal to a bottom diameter of the external thread of the rollers; and two synchronisation toothings (140D) coaxial to the screw and in which the external toothings of the rollers engage, wherein the external toothings of the rollers have teeth (120d) with a flank having, in transverse cross-section, a convex hypotrochoidal profile and said synchronisation toothings have teeth (140d) with a flank having, in transverse cross-section, a hypotrochoidal or epitrochoidal profile.
(FR)
Mécanisme (100) de vis à rouleaux comprenant une vis (110) munie d'un filet externe (110F) un écrou (130) entourant coaxialement la vis et muni d'un filet interne (130F); des rouleaux (120) chacun muni d'un filet externe (120F) et interposé entre la vis et l'écrou, chaque rouleau présentant deux extrémités munies chacune d'une denture externe (120D), chaque denture externe présentant, en section transversale, un diamètre extérieur inférieur ou égal à un diamètre de fond du filet externe des rouleaux; et deux dentures de synchronisation (140D) coaxiales à la vis et dans lesquelles s'engrènent les dentures externes des rouleaux, dans lequel lesdites dentures externes des rouleaux ont des dents (120d) avec un flanc présentant, en section transversale, un profil hypo-trochoïdal convexe et lesdites dentures de synchronisation ont des dents (140d) avec un flanc présentant, en section transversale, un profil hypo-trochoïdal ou épi-trochoïdal.
Latest bibliographic data on file with the International Bureau