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Chain wheel and timing chain drive for the compensation of dynamic loads

A technology of transmission mechanism and control chain, applied in the direction of transmission device, belt/chain/gear, mechanical equipment, etc., can solve the problem of high dynamic load of driving device and achieve the effect of improving homogenization

Inactive Publication Date: 2009-06-24
IWIS MOTORSYSTEME GMBH & CO KG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Furthermore, the dynamic load on the drives has always been relatively high in the solutions used so far

Method used

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  • Chain wheel and timing chain drive for the compensation of dynamic loads
  • Chain wheel and timing chain drive for the compensation of dynamic loads
  • Chain wheel and timing chain drive for the compensation of dynamic loads

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0029] FIG. 1 shows a simple chain drive 1 with two sprockets 2 , 3 and an endless drive chain 4 arranged around the sprockets 2 , 3 . A guide rail 5 is provided on the working branch of the drive chain, which supports the drive chain 4 between the sprockets 2 , 3 . A tensioning rail 6 is also provided on the unloaded branch of the transmission chain 4 , by means of which the transmission chain 4 is loaded with a constant outwardly acting preload. The tensioning rail 6 is correspondingly supported (not shown) for applying a pre-tensioning force and is connected to a tensioning device (not shown).

[0030] In this case, the smaller sprocket 2 has a circular toothed ring 7 , which is arranged around the axis of rotation or center M2 of the sprocket 2 , with eighteen teeth 17 and a chain guide 8 , which supports the The perimeter of the contour 9 has a non-circular contour. In contrast, the larger sprocket 3 has a toothed ring 7 with thirty-six teeth 17 , which is likewise arra...

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PUM

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Abstract

The invention relates to a chain wheel (2, 3), especially for a timing chain drive, with a rotary shaft, a sprocket wheel(7) positioned around the rotary shaft featuring multiple alternating teeth (17) and tooth gaps (16) distributed around its circumference, as well as at least one chain guide (8), the sprocket wheel(7) and the chain guide (8) are rigidly joined, the chain guide (8) incorporates a contoured surrounding support cage (9) causing it to bear on contact faces of link plates (13, 14) and the support cage (9) or raised regions of the support cage (9) extend along a curved circumference that constitutes the perimeter of the chain guide (8), said perimeter of the chain guide (8) having a non-circular profile.

Description

technical field [0001] The invention relates to a sprocket, in particular a sprocket for controlling a chain drive, the sprocket having a rotating shaft, a ring gear arranged around the rotating shaft and at least one chain belt guide, the ring gear There are a plurality of alternating teeth and tooth gaps distributed around the circumference, wherein the toothed ring and the chain belt guide are fixedly connected to each other, the chain belt guide has a bearing surface for bearing on the chain plate. An annular support profile, and the support profile or its protruding region rests on a curved perimeter which forms the outer circumference of the chain guide. Furthermore, the invention relates to a corresponding control chain drive for compensating dynamic loads with a chain, a drive sprocket and at least one driven sprocket. Background technique [0002] During vehicle development, NVH (Noise, Vibration and Harshness) characteristics are increasingly important. In additi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16H55/30
CPCF16H55/30F16H7/06
Inventor 安德烈亚斯·里茨卢茨·韦尔克沃尔克·赫希曼
Owner IWIS MOTORSYSTEME GMBH & CO KG