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Toothed belt

A technology of toothed belts and toothed parts, which is used in transmission belts, belts/chains/gears, mechanical equipment, etc., can solve the problems of deterioration of electrical conductivity of toothed cloth, electrification, discharge, and inability to obtain, and achieve good bending fatigue resistance, The effect of good adhesion and good abrasion resistance

Active Publication Date: 2011-09-28
TSUBAKIMOTO CHAIN CO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] However, there are the following problems: due to the lightening, the conductivity of the tooth cloth will deteriorate, and the belt will be charged and discharged during operation.
[0011] However, such a core wire has a problem that, due to poor adhesion to the rubber layer, when a strong shearing force is applied to the tooth portion of the belt, the tooth portion will be chipped early, and the desired performance cannot be obtained. ability

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0156] As shown in the following Table 5, the rubber layer composition of Mixing Example 1 in Table 1 was used as the rubber layer of the belt body, the tooth cloth 2 in Table 3 was used as the tooth cloth, and the core wire 1 in Table 4 was used as the core wire. The toothed belt of Example 1 was produced.

Embodiment 2 、 Embodiment 3

[0157] [Example 2], [Example 3], [Comparative Example 1]

[0158] The toothed belts of Example 2, Example 3, and Comparative Example 1 were produced according to the combinations of the rubber layer, the tooth cloth, and the core wire in Table 5 below.

[0159] [table 5]

[0160]

Embodiment 4

[0161] [Example 4] ~ [Example 11]

[0162] The toothed belts of Examples 4 to 11 were produced in accordance with the combinations of the rubber layer, the tooth cloth, and the core wire in Table 6 below.

[0163] [Table 6]

[0164]

Example 4

Example 5

Example 6

Example 7

Example 8

Example 9

Example 10

Example 11

rubber layer

Mixing example 3

Mixing example 3

Mixing example 3

Mixing example 3

Mixing example 3

Mixing example 3

Mixing example 3

Mixing example 3

tooth cloth

1

2

3

4

5

6

2

2

Wire

1

1

1

1

1

1

2

3

[0165] (6) Performance evaluation

[0166] Hereinafter, the results of the performance evaluation will be described.

[0167] (a) Evaluation of the strength and rigidity of the rubber layer

[0168] The rubber layer composition of each mixing example in Table 1 was crosslinked at 160° C. for...

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Abstract

A toothed belt (1) includes: a belt main body (4) in which a plurality of cords (2) are arranged side by side in a widthwise direction of a rubber layer (3); a plurality of teeth portions (5) formed at one surface of the belt main body (4); and a tooth cloth (6) covering surfaces of the teeth portions (5). A cloth base material is obtained by impregnating a surface layer rubber composition into an original canvas and by forming a surface layer, and an adhesion layer rubber composition is attached to one surface of the cloth base material to form an adhesion layer, thus forming the tooth cloth (6). The rubber layer (3) contains: HNBR including HNBR in which a Mooney viscosity at 100 DEG C. is in a range of from 100 to 160. The rubber layer (3), the rubber composition for a surface layer and the rubber composition for an adhesion layer preferably contain hydrogenated carboxyl NBR.

Description

technical field [0001] The present invention relates to a toothed belt having high rigidity and strength and excellent bending fatigue resistance. Background technique [0002] The toothed belt is installed between the driving side toothed pulley and the driven side toothed pulley, and can be used as a transmission belt of general industrial equipment and OA equipment, a timing belt of an internal combustion engine of an automobile, and a driving belt of an automobile, etc. Generally, a toothed belt includes a belt body composed of a black rubber layer containing carbon black, a plurality of teeth formed on the surface of the belt body, and a tooth cloth covering the surface of the teeth, wherein the black rubber A plurality of core wires are embedded in the layer along the length direction. Toothed belts cannot be used mainly due to wear of the tooth cloth, missing teeth, and cut core wires. [0003] In order to improve the power transmission capability, stopping accuracy...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16G1/28F16G1/10C08L51/04C08L15/00
CPCC08K5/098C08K7/08C08L13/00F16G1/08F16G1/28C08L9/02
Inventor 中尾英之友渕正人金森善
Owner TSUBAKIMOTO CHAIN CO
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