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Transverse element for drive belt, drive belt and method for producing such a transverse element

A technology of transverse elements and drive belts, applied in the direction of V-shaped belts, belts/chains/gears, mechanical equipment, etc., can solve the problems of reduced fatigue strength of transverse elements

Active Publication Date: 2021-07-23
ROBERT BOSCH GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] Although the wear resistance of the transverse elements can in principle be further increased by increasing the hardness of the transverse elements, for example by fine-tuning the composition of the steel substrate or the treatment parameters of the quench hardening treatment, this additional hardness is accompanied by ductility of the transverse elements and ultimately with a detrimental reduction in fatigue strength

Method used

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  • Transverse element for drive belt, drive belt and method for producing such a transverse element
  • Transverse element for drive belt, drive belt and method for producing such a transverse element
  • Transverse element for drive belt, drive belt and method for producing such a transverse element

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Embodiment Construction

[0025] figure 1 Shown is a central portion of a known continuously variable transmission or CVT typically applied to the driveline of a motor vehicle between the engine and the drive wheels of the motor vehicle. The variator comprises two pulleys 1, 2, each provided with a pair of conical pulley discs 4, 5 mounted on a pulley shaft 6 or 7, defining a generally V-shape between the pulley discs 4, 5 The circumferential pulley groove. Each pair of pulley disks 4 , 5 , ie at least one pulley disk 4 of each pulley 1 , 2 is axially movable along the pulley shaft 6 , 7 of the respective pulley 1 , 2 . A drive belt 3 is wound on the pulleys 1 , 2 in the pulley grooves thereof for transmitting the rotational movement and the accompanying torque between the pulley shafts 6 , 7 .

[0026] The variator typically also includes actuating means which, during operation, exert an axially oriented clamping force on said axially movable pulley disc 4 of each pulley 1, 2, which clamping force i...

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Abstract

The present disclosure relates to a component of steel transverse elements (32) for use in a drive belt (3) of a continuously variable transmission, the drive belt (3) comprising a plurality of such transverse elements (32) relative to the endless The perimeter of the tensile element (31) is slidably included in the drive belt. According to the present disclosure, the transverse element (32) has about 30 to 80 N / mm 2 residual compressive stress.

Description

technical field [0001] The present disclosure relates to a transverse element part for a drive belt of a continuously variable transmission according to the preamble of claim 1 . This particular type of drive belt and the transmissions to which it is generally applied are known in the art, for example from European patents EP-A-0626526 and EP-A-1167829 respectively. Background technique [0002] Known drive belts comprise a plurality of such transverse elements, made of steel and slidably included in the drive belt with respect to the periphery of annular tensile elements, which mainly have the function of restraining and guiding the transverse element parts . Typically, annular tensile elements consist of two sets of nested, ie radially stacked, flexible metal rings. Typically, the transverse elements are each provided with a groove in which a portion of the annular tensile element is accommodated. [0003] In the known variator, the drive power is transmitted from one o...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16G5/16
CPCF16G5/16
Inventor C·A·E·克雷博尔德M-D·特兰B·彭宁斯M·J·M·德克斯L·P·W·于斯曼A·布兰茨玛H·A·A·M·图尔灵斯H·拉哈
Owner ROBERT BOSCH GMBH