NF ISO 7451
Earth-moving machinery - Volumetric ratings for hoe-type and grab-type buckets of hydraulic excavators and backhoe loaders
ISO 7451:2007 specifies a method for estimating the volume of materials which a hoe-type or grab-type bucket of a hydraulic excavator or backhoe loader can normally contain. The volume assessments are based on the internal dimensions of the bucket and on the representative volumes at the top of the bucket. The method employs the technique of dividing the complex shape of the material in the bucket into simple geometric shapes. This method of assessment is intended to provide a conventional means of comparing bucket capacities. It is not intended to be used to define true capacities.
ISO 7451:2007 specifies a method for estimating the volume of materials which a hoe-type or grab-type bucket of a hydraulic excavator or backhoe loader can normally contain. The volume assessments are based on the internal dimensions of the bucket and on the representative volumes at the top of the bucket.
The method employs the technique of dividing the complex shape of the material in the bucket into simple geometric shapes.
This method of assessment is intended to provide a conventional means of comparing bucket capacities. It is not intended to be used to define true capacities.
Le présent document s'adresse aussi bien aux concepteurs qu'aux utilisateurs des godets rétro montés sur pelles ou sur chargeuses-pelleteuses, car il permet une évaluation rapide de la capacité des godets. Une méthode plus complète figure dans la norme NF E 58-077.
- Avant-proposiv
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1 Domaine d'application1
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2 Termes et définitions1
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3 Restrictions et limitations du godet travaillant en rétro3
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4 Calculs4
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4.1 Godet travaillant en rétro4
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4.2 Benne preneuse4
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5 Expression de l'évaluation volumétrique5
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5.1 Évaluation volumétrique d'un godet travaillant en rétro ou d'une benne preneuse5
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5.2 Appellation de la capacité commerciale5
- Bibliographie13
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