Unlock instant, AI-driven research and patent intelligence for your innovation.

Low-friction articulated bushing chain

A technology of articulated sleeves and articulated chains, applied in the direction of chain elements, transmission chains, belts/chains/gears, etc., can solve the problems of unrealized articulated sleeve chains, insufficient service life, etc., achieve optimization possibilities, easy production, and wear Reduced effect

Active Publication Date: 2014-06-18
IWIS MOTORSYSTEME GMBH & CO KG
View PDF6 Cites 3 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, such articulated bushing chains are so far only theoretical, and none of these articulated bushing chains have been realized in practice in timing chain drives
The reason for this is that, despite the theoretically lower frictional power, the service life of such chains proved insufficient

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Low-friction articulated bushing chain
  • Low-friction articulated bushing chain
  • Low-friction articulated bushing chain

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0038] figure 1 The chain drive 1 shown in is only an exemplary chain drive in which the two sprockets 2, 3 are equal in size, ie provided with an equal number of teeth (here 24). The continuously coupled articulated bush chain 4 surrounding the sprockets 2 , 3 can just as well also be used in a timing chain drive of an internal combustion engine with a crankshaft sprocket and, for example, two overhead camshaft sprockets. By means of arcs 5 and 6 , tensioning rails and guide rails are schematically indicated, such rails being known in principle, in particular rails for timing chain drives. Arc 6 represents the guide rail along which the hinged bushing chain 4 of tight span slides, while arc 5 represents the tension rail along which the hinged bushing chain 4 of loose span slides. Sprocket 2 is a drive sprocket that rotates clockwise.

[0039] refer to Figures 2 to 6 , the structural design of the hinged bushing chain 4 used will now be explained in more detail. The artic...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

An articulated bushing chain comprises inner and outer chain links alternately connected to each other by a chain joint, the inner chain link comprising at least one inner plate and two joint bushings and the outer chain link comprising at least two outer plates and two joint pins interconnecting the same, each chain joint being defined by a joint bushing of the inner chain link and a joint pin of the outer chain link and the chain joint being configured as a rocker joint in which a rocking surface of the joint pin rolls on a convex inner rocker contour of the joint bushing during a movement of the joint. The rocking surface of the joint pin has a rocking radius larger than a limit value calculated according to a given formula. The rocking surface of the joint pin is prevented from slipping on the rocker contour of the joint bushing.

Description

technical field [0001] The invention relates to an articulated bush chain comprising inner and outer links alternately connected to each other by means of link joints, the inner links comprising at least one inner plate and two coupling bushes and the outer links comprising at least two outer plates and two link pins interconnecting the at least two outer plates, each link joint being defined by a link sleeve of an inner link and a link pin of an outer link, and the link joint being configured as a rocker joint , wherein the rocker surface of the coupling pin rolls on the raised inner rocker profile of the coupling sleeve during movement of the joint. Background technique [0002] Such an articulated bush chain is known, for example, from US 5,176,587. Such articulated bush chains are primarily intended for use in timing chain drives, for example of internal combustion engines. Such chain drives operate under extreme load conditions and are therefore subject to significant...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): F16G13/06F16G15/00
CPCF16G13/06
Inventor A.里茨
Owner IWIS MOTORSYSTEME GMBH & CO KG