Traction transmission and drive unit for a motor vehicle

US10941841B2 · kind B2 · utility

Assignee

• VOLKSWAGEN AKTIENGESELLSCHAFT · DE

Inventors

• Rainer Petersen · Wolfsburg, DE
• Jörg Möckel · Chemnitz, DE

Key dates

• Filing date: Nov 15, 2017
• Grant date: Mar 9, 2021
• Expiry date: Apr 3, 2038

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F16H2200/0021
• WIPO field: Mechanical elements
• WIPO sector: Mechanical engineering

Abstract

Traction transmission having a first and a second component transmission (26a, b) which are of mirror-symmetrical construction with respect to one another and are arranged axially adjacently in a housing (12), in each case comprising—an axially inner drive friction disc (28a, b) and an axially outer complementary friction disc (32a, b) which are arranged coaxially and can be rotated relative to one another about a transmission central axis, and—a set of friction rollers (40) which make non-positive contact between the friction discs (28a, b, 32a, b) and are mounted such that they can be rotated about in each case one roller axle (44), wherein the roller axles (44) are pivotably mounted in a manner which is spaced apart radially from the transmission central axis on a star-shaped spider (38a, b) which can be moved ax Lilly in relation to the transmission central axis, wherein the spiders (38a, b) are arranged on a common spider sleeve (50) and are coupled to one another at a variable spacing via an axially extending thread pairing (52), wherein—the complementary friction discs (32a, b) are arranged fixedly on a common output shaft (34) which is mounted in the housing such that it is…