Invention Grant
- Patent Title: Planetary roller screw drive
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Application No.: US17761612Application Date: 2020-08-11
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Publication No.: US12049944B2Publication Date: 2024-07-30
- Inventor: Sebastian Weis , Waldemar Heier , Peter Keller , Mario Arnold , Silvia Kutzberger
- Applicant: Schaeffler Technologies AG & Co. KG
- Applicant Address: DE Herzogenaurach
- Assignee: Schaeffler Technologies AG & Co. KG
- Current Assignee: Schaeffler Technologies AG & Co. KG
- Current Assignee Address: DE Herzogenaurach
- Priority: DE 2019125323.3 2019.09.20
- International Application: PCT/DE2020/100697 2020.08.11
- International Announcement: WO2021/052526A 2021.03.25
- Date entered country: 2022-03-18
- Main IPC: F16H25/20
- IPC: F16H25/20 ; F16H25/22

Abstract:
The disclosure relates to a planetary roller screw drive comprising a threaded spindle nut, a horizontal threaded spindle, a plurality of planetary rolling elements having a planetary rolling element profile, and at least two planetary guide rings. The threaded spindle is arranged concentrically in the planetary guide rings and the spindle nut. The planetary guide rings can be rotated relative to the threaded spindle and the planetary rolling elements are mounted so as to be rotatable about their associated planetary rolling element axis in the planetary guide rings and inside the spindle nut. The planetary rolling element profile of the planetary rolling elements meshes with the threaded spindle. The planetary guide rings are connected to a housing case for conjoint rotation, and the housing case has a housing case lateral surface on which a toothing is formed for coupling in a geared manner to with a continuous traction mechanism.
Public/Granted literature
- US20220373066A1 PLANETARY ROLLER SCREW DRIVE Public/Granted day:2022-11-24
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