JB/T 51238-1999
Tillage Machine - Product Quality Grading (Internal Use)
耕整机 产品质量分等（内部使用）
Catalogue
前言 → 1 范围 → 2 引用标准 → 3 质量指标 → 4 检验方法 → 5 检验规则 Foreword → 1 Scope → 2 Normative References → 3 Quality Indicators → 4 Inspection Methods → 5 Inspection Rules
Scope
This standard specifies the quality indicators, test methods, and inspection rules for three grades of tillage machines: qualified product, first-class product, and premium product. This standard applies to the quality inspection and quality grading of various single-wheel or dual-wheel drive tillage machines with or without seats, with supporting power not greater than 6 kW, used for plowing and leveling in paddy fields and dry fields (soil).
本标准规定了耕整机合格品、一等品、优等品三个等级的质量指标、试验方法和检验规则。本标准适用于配套动力不大于6 kW，用于水田、旱田（土）犁耕、平整的各种单轮或双轮驱动以及有乘座或无乘座的耕整机的质量检测和质量分等。
Normative References
Keywords
Application Summary AI generated
This standard is used by tillage machine manufacturers, quality inspection agencies, and agricultural machinery management departments. They use it to grade and inspect tillage machine products, ensuring they meet qualified, first-class, or premium levels. It matters because it unifies quality requirements, helps users select reliable equipment, and drives industry quality improvement.
这个标准由耕整机制造商、质量检测机构和农业机械管理部门使用。他们用它来对耕整机产品进行质量分级和检测，确保产品达到合格、一等或优等水平。该标准重要，因为它统一了质量要求，帮助用户选择可靠设备，并推动行业质量提升。
AI Summary AI generated
This standard JB/T 51238-1999 specifies the quality grading requirements for tillage machines, classifying products into three grades: qualified, first-class, and premium. It applies to single-wheel or dual-wheel drive tillage machines with supporting power not greater than 6 kW, covering paddy field and dry field operations. Key technical content includes overall machine structure and performance indicators, plowing performance, assembly and appearance requirements, reliability, noise, and safety technical requirements. Inspection methods include structural specific mass measurement and various performance tests, while inspection rules adopt counting sampling plans and grade evaluation based on nonconformity classification.
本标准JB/T 51238-1999规定了耕整机产品的质量分等要求，将产品分为合格品、一等品和优等品三个等级。标准适用于配套动力不大于6 kW的单轮或双轮驱动耕整机，涵盖水田和旱田作业。主要技术内容包括整机结构及性能指标、犁耕性能、装配及外观要求、可靠性、噪声和安全技术要求。检验方法包括结构比质量测定和各项性能试验，检验规则采用计数抽样方案，按不合格项目分类进行等级评定。
Key Sentences extracted from text
本标准规定了耕整机合格品、一等品、优等品三个等级的质量指标、试验方法和检验规则。
本标准适用于配套动力不大于6 kW，用于水田、旱田（土）犁耕、平整的各种单轮或双轮驱动以及有乘座或无乘座的耕整机的质量检测和质量分等。
耕整机产品应按经规定程序批准的产品图样和技术文件制造，并应符合本标准及有关标准的规定。
耕整机的安全性应符合GB 10395 和JB/T 9803.1—1999 中3.6 的规定。
等级评定采用逐项考核，按项定等。以不合格分类表中各组达到的最低等级为产品等级。
This standard specifies the quality indicators, test methods, and inspection rules for three grades of tillage machines: qualified product, first-class product, and premium product.
This standard applies to the quality inspection and quality grading of various single-wheel or dual-wheel drive tillage machines with or without seats, with supporting power not greater than 6 kW, used for plowing and leveling in paddy fields and dry fields (soil).
Tillage machine products shall be manufactured in accordance with product drawings and technical documents approved through specified procedures, and shall comply with the provisions of this standard and relevant standards.
The safety of tillage machines shall comply with the provisions of GB 10395 and clause 3.6 of JB/T 9803.1-1999.
Grade evaluation adopts item-by-item assessment, with grade determination based on items. The lowest grade achieved by each group in the nonconformity classification table shall be the product grade.
Standard Timeline
Changes from replaced version:
- 进一步明确适用范围，本标准适用于配套动力不大于6 kW，用于水田、旱田（土）犁耕、整地的各种单轮或双轮驱动以及有乘座或无乘座的耕整机的质量检测和质量分等
- 增加了安全方面的内容
- 对不合格分类进行适当的调整
- Further clarified the scope of application, this standard applies to the quality inspection and quality grading of various single-wheel or dual-wheel drive tillage machines with or without seats, with supporting power not greater than 6 kW, used for plowing and leveling in paddy fields and dry fields (soil)
- Added safety-related content
- Made appropriate adjustments to the nonconformity classification