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Method for producing a transverse section of a drive belt for a continuously variable transmission

A technology of continuously variable transmission, transverse segment, applied in belt, application, v-belt, etc.

Active Publication Date: 2021-07-20
ROBERT BOSCH GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Thus, a limit is imposed on the minimum width of the strut portion of the transverse section in relation at least to the width or diameter of the pegs and notches of the alignment structure.

Method used

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  • Method for producing a transverse section of a drive belt for a continuously variable transmission
  • Method for producing a transverse section of a drive belt for a continuously variable transmission
  • Method for producing a transverse section of a drive belt for a continuously variable transmission

Examples

Experimental program
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Embodiment Construction

[0020] figure 1 A central component of a continuously variable transmission 100 used, for example, in a drive train of a passenger car is shown schematically in side view. This transmission 100 is known per se and comprises at least a variable first pulley 101 and a variable second pulley 102 . In a powertrain system, the first pulley 101 is coupled to and driven by a motor, ie, an engine, and the second pulley 102 is typically coupled to driven wheels of a motor vehicle via a plurality of gears.

[0021] Both transmission pulleys 101 , 102 comprise a first conical pulley sheave and a second conical sheave sheave fixed to the pulley shaft of the respective pulley 101 , 102 103 , 104 , the second conical pulley sheave is axially displaceable relative to the corresponding pulley shaft 103 , 104 and is fixed to the pulley shaft only in rotational direction. The transmission belt 99 is wound around the pulleys 101, 102 while being accommodated between the pulley pulleys of the p...

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Abstract

The invention relates to a method for manufacturing a transverse segment (1) having a bottom (10) and a strut portion (11) defining a protruding peg (6) and Notch, said transverse section (1) will be part of the drive belt. According to the invention, before the transverse section (1) is cut out of the base material (50), a hole (53) is punched into the base material towards the side of the strut part (11) at the location of the peg (6) and the notch (50). The transverse section ( 1 ) is then cut out by means of a blanking punch, a part of which extends beyond the contour of the transverse section ( 1 ) into such a preformed hole ( 53 ).

Description

technical field [0001] The present disclosure relates to a method for manufacturing a transverse segment to be part of a drive belt of a continuously variable transmission having two pulleys and a drive belt. Such drive belts are generally known and are primarily intended to run around and between two variator pulleys each defining a V-shaped groove of variable width, the corresponding The peripheral portion is held in the V-shaped groove. Background technique [0002] Drive belts of known type comprise a substantially continuous series of transverse segments mounted on and around the circumference of an endless carrier. Each such transverse segment defines a groove open to the drive belt and receiving and confining a corresponding circumferential section of the annular carrier while enabling movement of the transverse segment along the circumference of the carrier. The ring carrier is formed from a plurality of flat and thin rings stacked on top of each other in radial di...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16G5/16B26F1/02B26F1/38
CPCB26F1/02B26F1/38F16G5/16B21D53/14
Inventor R·万德恩霍伊费尔
Owner ROBERT BOSCH GMBH