JB/T 51197-1999
Moldboard Plow - Product Quality Grading (Internal Use)
铧式犁 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 试验方法 → 5 检验规则 Foreword → 1 Scope → 2 Normative References → 3 Quality Indicators → 4 Test Methods → 5 Inspection Rules
Scope
This standard specifies the quality grade indicators, test methods, and inspection rules for moldboard plow products. This standard applies to the quality grading of moldboard plow products matched with walking, wheel-type, and crawler tractors.
本标准规定了铧式犁产品的质量等级指标、试验方法和检验规则。本标准适用于与手扶、轮式、履带拖拉机配套铧式犁产品的质量分等。
Normative References
Keywords
Application Summary AI generated
This standard is used by tractor manufacturers, plow producers, and quality inspection agencies. They apply it to grade moldboard plow products into qualified, first-class, or premium levels. It matters because it sets performance and reliability benchmarks, ensuring high-quality agricultural machinery for efficient farming.
这个标准主要被拖拉机制造商、犁具生产企业和质量检验部门使用。他们用它来对铧式犁产品进行质量分等，确保产品达到合格、一等或优等水平。该标准通过规定性能指标和可靠性要求，帮助提升农机产品质量，促进农业机械化发展。
AI Summary AI generated
This standard specifies quality grade indicators, test methods, and inspection rules for moldboard plows matched with walking, wheel-type, and crawler tractors. Products are graded as qualified, first-class, or premium based on performance metrics such as tillage depth stability, vegetation coverage, soil fragmentation rate, working speed, penetration travel, and power consumption. It also covers service reliability and workload before first failure. The standard includes requirements for assembly quality and key component inspection, using a category-based assessment where the lowest grade among nonconformity categories determines the final product grade.
本标准规定了铧式犁产品的质量等级指标、试验方法和检验规则，适用于与手扶、轮式、履带拖拉机配套的铧式犁。产品按质量分为合格品、一等品和优等品，涵盖耕深稳定性、植被覆盖率、碎土率、耕作速度、入土行程、功率消耗等性能指标，以及使用可靠性和首次故障前工作量。标准还规定了整机装配质量、主要零部件质量检测要求，并采用逐项考核、按类判定的检验规则，以不合格分类中最低等级确定最终质量等级。
Key Sentences extracted from text
本标准规定了铧式犁产品的质量等级指标、试验方法和检验规则。
铧式犁产品质量按其技术水平和质量水平分为合格品、一等品和优等品。
产品使用可靠性系数和首次故障前工作量应符合表3的规定。
可靠性考核全过程中犁梁、犁柱、犁托、悬挂架，在正常作业时不允许有损坏和永久变形。
采用逐项考核，按类判定，以不合格分类中达到的最低等级判定产品质量等级。
This standard specifies the quality grade indicators, test methods, and inspection rules for moldboard plow products.
Moldboard plow products are classified into qualified, first-class, and premium grades according to their technical level and quality level.
The product service reliability coefficient and the workload before first failure shall comply with the provisions of Table 3.
During the entire reliability assessment process, the plow beam, plow leg, plow support, and suspension frame shall not be damaged or permanently deformed under normal operation.
Adopt item-by-item assessment, judge by category, and determine the product quality grade based on the lowest grade achieved in the nonconformity categories.
Standard Timeline
Changes from replaced version:
- 扩大了标准的适用范围，增加了手扶拖拉机配套铧式犁的内容。
- 对技术参数和不合格分类作了适当调整。
- Expanded the scope of the standard, adding content for moldboard plows matched with walking tractors.
- Made appropriate adjustments to technical parameters and nonconformity classification.