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toothed belt

A technology of toothed belts and teeth, applied in belts, transmission belts, belts/chains/gears, etc., can solve the problem of increased load resistance and achieve the effect of suppressing bandwidth

Active Publication Date: 2021-03-26
MITSUBOSHI BELTING LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in terms of device space, miniaturization is also required, and in particular, it is desired to suppress the bandwidth and increase the load resistance.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0053] The inventors of the present invention used the above-mentioned manufacturing method to manufacture Examples 1 to 9 and For the toothed belts of Comparative Examples 1 to 3, a tensile test and a belt running test were performed on the above-mentioned toothed belts.

[0054] The structures of the respective toothed belts in Examples 1 to 9 and Comparative Examples 1 to 3 are shown in Tables 1 to 4 below.

[0055] In addition, the width|variety W of the toothed belt of Examples 1-9 and Comparative Examples 1-3 was all 135 mm.

[0056] Here, in Table 1, the structures of the toothed belts of Examples 1 to 3 and Comparative Examples 1 to 3 are described for comparison when the pitch P of the teeth portion 3 and the belt strength per 1 mm of the belt width are used as variables. In addition, in Table 2, the structures of the toothed belts of Examples 1, 4, and 5 are described for comparison with the toothed belt of Example 1 when the pitch Pt of the center line 1 is used as...

Embodiment 6

[0083] Examples 6 to 8 have the same structure as Example 1 except that the hardness of the material (polyurethane-based thermoplastic elastomer) constituting the toothed belt is changed, and the pitch P of the teeth is 20mm (the scale of the teeth is large). toothed belt. Example 8 (95°) with high hardness is grade A, but in toothed belts with low hardness, tooth wear tends to progress due to deformation of the teeth, so Example 7 (85°) is grade B , and became C grade in Example 6 (80°).

Embodiment 9

[0084] Example 9 has the same structure as Example 1 except that the type of polyurethane, which is a material (polyurethane-based thermoplastic elastomer) constituting the toothed belt, is changed, and the pitch P of the teeth is 20 mm (the scale of the teeth is large). toothed belt. In this case, it becomes A grade similarly to Example 1.

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Abstract

The present invention relates to a toothed belt including a belt main body including a plurality of cores respectively extending in the belt length direction and arranged in the belt width direction, a back surface portion in which the plurality of cores are buried, and the The back part is opposite to the belt thickness direction and a plurality of tooth parts are arranged apart from each other along the belt length direction, the back part and the plurality of tooth parts are integrally formed of a thermoplastic elastomer, and the toothed belt is characterized in that The belt strength per 1 mm of width is 1.85 kN or more, the pitch of the plurality of teeth is 20 mm or more, the height of each of the plurality of teeth is 5 mm or more, and the thickness of the back surface is 4 mm or more.

Description

technical field [0001] The present invention relates to a toothed belt in which a back surface and a plurality of teeth are integrally formed of a thermoplastic elastomer. Background technique [0002] Toothed belts are widely used as power transmission belts in general industrial machinery, agricultural machinery, etc., and in recent years, application to heavy conveyances has progressed. It is effective to increase the load resistance by enlarging the overall size of the toothed belt (in particular, the height of the teeth) for application to heavy conveyance. However, miniaturization is also required in terms of device space, and in particular, it is desired to suppress the bandwidth and increase the load resistance. [0003] As techniques for suppressing the band width and increasing the load resistance, there are known techniques for arranging a plurality of cores in the belt thickness direction (see Patent Documents 1 and 2), techniques for arranging cores closely wit...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16G1/28B29D29/08
CPCB29D29/08F16G1/28F16G1/16F16G1/12F16G1/10F16G1/14
Inventor 田村荣树
Owner MITSUBOSHI BELTING LTD