标准编号：ISO 5718-2:2023
中文名称：收获机械 切割元件的要求 第2部分：大型旋转割草机上使用的刀片
英文名称：Harvesting equipment — Requirements for cutting elements — Part 2: Blades used on large rotary mowers
发布日期：2023-04
标准范围
This document specifies requirements for blades used as cutting elements on large rotary mowers (as defined in ISO 4254-13) for shredding crop residue, grass and small brush by impact. It specifies requirements for testing and marking of such blades. This document is not applicable to blades used on: — rotary disc mowers, rotary drum mowers, and flail mowers designed for forage crop harvesting as covered by ISO 4254-12; — arm-type large rotary mowers; — pedestrian-controlled motor mowers; — lawn mowers covered by the ISO 5395 series.
NOTE 1 The main purpose of this document is to set material characteristics. Blades on large rotary mowers are exposed to considerable centripetal forces and impacts with foreign objects. A bend test and Charpy impact test to check the brittleness and toughness of the material are therefore included in this document.
NOTE 2 This document does not specify dimensional requirements.
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