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重庆DB50/T 277-2021《微耕机配套用旋耕刀通用技术条件》解读

2023-03-13 15:52:09 来源：农机网整理发布 阅读量：19376 评论

导读：该地方标准规定了微耕机配套用旋耕刀的术语和定义、型号和分类、基本参数、技术要求、试验方法、检验规则、使用说明书、标识、包装、运输和贮存。适用于微耕机配套用旋耕刀。

　　【农机网 政策与标准】2021年11月30日，重庆市市场监督管理局批准发布了DB50/T 277-2021《 微耕机配套用旋耕刀通用技术条件》，该地方标准自2022年3月1日开始实施。
 

 

　　该标准由重庆市农业农村委员会提出，重庆市农业农村委员会归口，重庆市恒昌农机具制造有限公司、重庆市农业机械鉴定站、重庆帝勒金驰通用机械股份有限公司起草。规定了微耕机配套用旋耕刀的术语和定义、型号和分类、基本参数、技术要求、试验方法、检验规则、使用说明书、标识、包装、运输和贮存。适用于微耕机配套用旋耕刀。
 
　　旋耕刀分类：
 
　　根据其功能分为普通旋耕刀和灭茬旋耕刀；根据其固定型式分为刀座式和刀盘式；根据其弯向分为左弯刀和右弯刀。
 
　　刀座式旋耕刀的型式。
 
　　刀座式旋耕刀常用的型式根据使用要求分为Ⅰ型、Ⅱ型和Ⅲ型三种。
 
　　Ⅰ型：主要用于水旱田耕作。刀辊回转半径R常为150mm、180mm、190mm等。
 
　　Ⅱ型：主要用于水田绿肥、稻茬、麦茬较多的田地作业。刀辊回转半径R常为165mm、195mm、210mm等。
 
　　Ⅲ型：主要用于浅耕作业。刀辊回转半径R常为150mm、175mm等。
 
　　刀盘式旋耕刀的型式::刀盘式旋耕刀根据使用要求分为Ⅰ型和Ⅱ型两种。
 
　　Ⅰ型：主要用于一般水旱田耕作。
 
　　Ⅱ型：主要用于比阻较大的旱田耕作。
 
　　[技术要求]
 
　　材料:
 
　　旋耕刀片应采用 GB/T 1222-2016 规定的 65Mn 或 60Si2Mn 钢，或不低于此品质的材料制造。
 
　　旋耕刀刀座应采用 GB/T 1591-2018 规定的 Q235 钢，或不低于此品质的材料制造。
 
　　制造方法及热处理:
 
　　旋耕刀片应经锻压成形。
 
　　旋耕刀的热处理硬度应为 48 HRC～52 HRC。
 
　　旋耕刀金相组织应为回火马氏体。
 
　　旋耕刀的金相组织中晶粒度应不大于 GB/T6394-2017 规定的 8 级。
 
　　旋耕刀片的单边脱碳层厚度应不大于 0.2mm。
 
　　外观质量::
 
　　旋耕刀片两平面应平整，表面不应有裂纹等影响使用的缺陷。
 
　　旋耕刀片刃口线应圆滑。
 
　　旋耕刀片刀座不应有粘砂、砂眼和飞边等缺陷。
 
　　旋耕刀片刀座焊缝应平整、牢固，不应有未焊透、漏焊和夹渣等缺陷。
 
　　旋耕刀应进行涂漆或其他防锈处理。
 
　　点击下方下载完整标准文件。
 
　　注：本文由农机网(www.nongjx.com)整理发布，资料来源：地方标准信息公共服务平台。
 
相关资料下载：

微耕机配套用旋耕刀通用技术条件（标准文本）.pdf

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