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Rubber-covered steel cord and method for manufacturing steel cord belt for rubber track

A steel cord and rubber crawler technology, which is applied in the field of steel cord belts, can solve the problems of thinning steel cord belts and other problems

Inactive Publication Date: 2016-08-17
SUMITOMO RUBBER IND LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, when the rubber-impregnated steel cord is moved by the nip roll, the adhesiveness of the rubber acts as resistance between the forming drum and the like, and gaps remain between the adjacent rubber-impregnated steel cords.
As a result, there is a problem that the thickness of the steel cord belt becomes locally thin.

Method used

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  • Rubber-covered steel cord and method for manufacturing steel cord belt for rubber track
  • Rubber-covered steel cord and method for manufacturing steel cord belt for rubber track
  • Rubber-covered steel cord and method for manufacturing steel cord belt for rubber track

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0026] figure 1 is a cross-sectional view of a rubber-impregnated steel cord (hereinafter referred to as "rubber-covered steel cord 1"), figure 2 It is a partial cross-sectional view of a forming drum wound with a rubberized steel cord 1, image 3 It is a diagram showing movement of rubber during vulcanization molding in the rubberized steel cord 1 .

[0027] The rubber-coated steel cord 1 is composed of two steel cords 11, 11 and a rubber coating 12 covering the steel cords 11, 11. The steel cord 11 is formed by twisting a plurality of twisted wires to form an approximately circular cross section of 2-3 mm, wherein the twisted wire is formed by twisting a plurality of wires with a small wire diameter (for example, a wire diameter of 0.175 mm). The two steel cords 11 and 11 are finally twisted into "S twist" and the other into "Z twist". In the rubber-covered steel cord 1, two steel cords 11 with different twisting directions are combined. , 11. However, as the steel cord...

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PUM

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Abstract

PROBLEM TO BE SOLVED: To provide a rubber-coated steel cord in which a steel cord band does not partially become thin when it is wound around a molding drum with a gap, and a method for manufacturing a steel cord band for rubber crawler.SOLUTION: The rubber-coated steel cord 1 is used for manufacturing a steel cord band 2 that is embedded in a rubber crawler. The rubber-coated steel cord includes a steel cord 11 covered with a rubber 12. The cross-sectional shape orthogonal to a direction in which the steel cord extends is formed by first end edges 18, 18 that are two parallel end edges and two second end edges 13, 13 that are connected to both edges of the first end edges and extend to a direction orthogonal to the first end edges. A part or all of one or both of the second end edges protrude outward.

Description

technical field [0001] The present invention relates to a steel cord belt used for rubber crawlers attached to agricultural work machines, civil engineering work machines, and the like. Background technique [0002] The rubber track rolls are hung on the drive wheels, driven wheels, and rollers of a crawler-type traveling device such as an agricultural work machine, and are circulated in the circumferential direction to drive the agricultural work machine or the like. At this time, a large tension acts on the rubber track in the circumferential direction. In order to withstand such a large tension, a steel cord belt is embedded in the rubber crawler track in a state of going around in the track circumferential direction, and the steel cord belt is formed in a belt shape by arranging a plurality of steel cords. [0003] Such a steel cord belt is generally formed into a predetermined length, and then both ends are overlapped to form a loop (closed loop). However, in the stee...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D07B1/16D07B1/06D07B7/14B29C41/00
Inventor 上野吉郎连城峰雄池田一繁石川源一郎户川修新井隆司
Owner SUMITOMO RUBBER IND LTD