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Pressure piece with an optimised thickness ratio, and plate-link chain comprising a pressure piece

A technology of pressure parts and thickness ratio, which is applied in the field of transmission system, can solve the problems of heavy load, low efficiency and wear of plate link chain, and the running radius cannot meet high requirements, and achieve the effect of high strength and load reduction

Inactive Publication Date: 2021-10-22
SCHAEFFLER TECH AG & CO KG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, the prior art always suffers from the following disadvantages: In addition to the development of noise and strength, the efficiency and wear of the plate link chain and the realization of the smallest possible running radius are not yet able to meet the high requirements
However, this has the disadvantage that due to its reduced cross-section, the lower area of ​​the pressure piece is more heavily loaded than the upper area

Method used

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  • Pressure piece with an optimised thickness ratio, and plate-link chain comprising a pressure piece
  • Pressure piece with an optimised thickness ratio, and plate-link chain comprising a pressure piece

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Embodiment Construction

[0018] The drawings are merely schematic in nature and are used only for the understanding of the invention. The same elements are provided with the same reference numerals.

[0019] figure 1 A part of an exemplary general embodiment of a leaf link chain 1 for a drive train of a motor vehicle is shown. The plate link chain 1 is used in particular for continuously variable transmissions (CVT transmissions). For example, the plate link chain 1 is used as a traction device of a variator to connect two pairs of conical pulleys of the variator to each other. The plate link chain 1 has a large number of links 2 which are referred to below as links 2 . The link 2 is arranged parallel to the running direction of the plate link chain 1 . The links 2 are arranged in a plurality of rows which are arranged next to each other with respect to the running direction of the plate link chain 1 . The links 2 are articulated to each other via a rocker pressure piece 3 , referred to below as ...

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Abstract

The invention relates to a pressure piece (3) for the articulated connection of links (2) of a plate-link chain (1) for a drive train of a motor vehicle, the thickness ratio for the pressure piece (3) between a lower thickness (7) of a lower portion (8), in a vertical direction, of the pressure piece (3) and an upper thickness (9) of an upper portion (10), in the vertical direction, of the pressure piece (3) being greater than 1 / 1.09, each of said thicknesses (7, 9) being measured at a predefined distance (11) from the centre (12) of the pressure piece (3), viewed in the vertical direction, and perpendicular to said vertical direction. The invention also relates to a CVT plate-link chain (1) for a drive train of a motor vehicle, comprising a plurality of links (2) which are interconnected via pressure pieces (3).

Description

technical field [0001] The invention relates to a pressure piece for the articulated connection of the links of a CVT plate link chain for a drive train of a motor vehicle, in particular for a continuously variable transmission (CVT transmission). The invention also relates to a plate link chain for a drive train of a motor vehicle with a plurality of links via pressure pieces, preferably via several pressure pieces arranged in pairs and engaging in openings in the links to hinged connection. Background technique [0002] Pressure elements and leaf link chains with pressure elements are sufficiently known from the prior art. For example, EP1862700A1 discloses a leaf link chain, in particular for a vehicle drive, having a plurality of links hinged to each other via a pressure piece extending transversely to the longitudinal direction of the leaf link chain and arranged at the link and on the pressure piece and the link have corresponding curved contact surfaces along which ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16G5/18
CPCF16G5/18F16H9/24
Inventor P·弗里茨M·法尔克
Owner SCHAEFFLER TECH AG & CO KG
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