Transmission belt, use of transmission belt of this type as poly V-belt, and method for producing transmission belt of this type

A technology for transmission belts and V-ribbed belts, which is applied in the field of transmission belts, can solve problems such as defects, short service life, and poor cutability of transmission belts, and achieve the effects of improved performance, long service life, and increased resistance

Pending Publication Date: 2022-07-15
CONTITECH ANTRIEBSSYST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, drive belts with tension threads composed of para-aramid have very poor cuttability
Cut edges of drive belts often have a napped appearance which is rated as a defect by customers
In addition, in overload tests on other comparable belts (with the same para-aramid strands), a shorter service life tended to be observed in belts with significantly napped cut edges

Method used

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  • Transmission belt, use of transmission belt of this type as poly V-belt, and method for producing transmission belt of this type
  • Transmission belt, use of transmission belt of this type as poly V-belt, and method for producing transmission belt of this type
  • Transmission belt, use of transmission belt of this type as poly V-belt, and method for producing transmission belt of this type

Examples

Experimental program
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Embodiment Construction

[0045] figure 1 A partial section of a drive belt is shown, the main body of which is formed by the outer layer 2 and the bottom structural hybrid 4 . Extending between the top layer 2 and the bottom structural hybrid 4 is a layer of tension threads consisting of a plurality of tension threads 3 . The tension wires 3 are preferably arranged parallel to each other. It is also conceivable that the tension wires 3 are arranged offset relative to each other.

[0046] like figure 1 The drive belt 1 shown is in the form of a V-ribbed belt. For this purpose, the base structure 4 has a plurality of ribs 5 arranged parallel to each other, which are delimited by grooves 6 to each other. The side of the bottom structural hybrid 3 opposite the tension wires 3 or the top layer 2 forms a force transmission surface 7 extending through the ribs 5 and through the grooves 6 .

[0047] The force transmission surface 7 may have a coating 8 . The coating 8 may be a flocked coating, in partic...

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Abstract

The invention relates to a drive belt (1) having a main body in which one or more tension threads (3) made of para-aramid fibers are embedded in strands, each tension thread (3) having twisted strands, each of which is formed of at least one twisted thread, and wherein the tension threads (3) are arranged in a twisted manner in the form of a twisted thread, and wherein the tension threads (3) are arranged in a twisted manner in the form of at least one twisted thread in the form of at least one twisted thread in the form of at least one twisted thread. The rotation direction of each plied yarn (first twist) is opposite to the rotation direction of each plied yarn (final twist). The invention is characterized in that the tension threads (3) each have at least four plied yarns, the twist factor TM1 of the plied yarns (first twist) being between 4.5 and 5.4, the twist factor TM2 of the strand (final twist) being between 2.7 and 3.8, and the ratio (TM1 / TM2) of the twist factor of the plied yarns to the twist factor of the strand being between 1.3 and 1.5.

Description

technical field [0001] The invention relates to a drive belt according to the preamble of claim 1 . The invention also relates to the use and manufacture of such a drive belt. Background technique [0002] Drive belts in the form of V-ribbed belts, especially for starter-generators in modern hybrid vehicles or mild hybrid vehicles, are exposed to very high stresses. Thus, in the past few years, tension threads comprising para-aramid fibers constructed in strands have been increasingly embedded in the main body of the drive belt. The para-aramid strands impart particularly high tensile strength, dimensional stability and longitudinal stiffness to the drive belt. [0003] For example, WO 2006 / 102641 A1 and WO 2012 / 143241 A1 each disclose drive belts with tension threads consisting of para-aramid in a strand configuration. Each tension thread has twisted plied yarns, and each twisted plied yarn is formed from at least one twisted yarn. The direction of rotation of each plie...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16G1/10F16G5/08D07B1/00D02G3/26F16G5/20
CPCF16G1/10F16G5/08F16G5/20D02G3/26D02G3/447D02G3/446D10B2331/021D02G3/02D02G3/286D02G3/404D02G3/047D07B3/005
Inventor 亨宁·坎措安东尼厄斯·迪克曼斯赖因哈德·特韦斯曼弗雷德·邦科夫斯基克里斯蒂安·格雷内尔蒂莫·塞巴斯蒂安·卡萨克
Owner CONTITECH ANTRIEBSSYST
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