JB/T 51075-1999
Tractor-drawn transverse rake - Product quality grading (Internal use)
机引横向搂草机 产品质量分等（内部使用）
Catalogue
前言 → 1 范围 → 2 引用标准 → 3 搂草机质量分等 → 4 试验方法 → 5 检验规则 Foreword → 1 Scope → 2 Normative References → 3 Rake Quality Grading → 4 Test Methods → 5 Inspection Rules
Scope
This standard specifies the quality grading indicators, test methods and inspection rules for tractor-drawn transverse rakes. This standard applies to the quality grading of tractor-drawn transverse rakes (hereinafter referred to as rakes).
本标准规定了机引横向搂草机质量分等指标、试验方法及检验规则。本标准适用于机引横向搂草机（以下简称搂草机）的质量分等。
Normative References
Keywords
Application Summary AI generated
Manufacturers and quality inspection agencies use this standard to grade the quality of tractor-drawn transverse rakes. It provides clear performance indicators and test methods to ensure products meet first-grade or qualified product requirements, thereby guaranteeing reliable and durable agricultural machinery for users.
该标准由搂草机制造商和质量检验机构使用，用于对机引横向搂草机进行质量等级评定。它通过设定明确的性能指标和试验方法，确保产品达到一等品或合格品要求，从而保障用户获得可靠耐用的农机设备。
AI Summary AI generated
This standard specifies quality grading requirements for tractor-drawn transverse rakes, including grading indicators, test methods, and inspection rules. Products are classified into first-grade and qualified grades, with indicators covering working speed, missed rake rate, first failure-free operation time, metal consumption per meter of rake width, windrow width, clutch reliability, tine quality, frame flatness, tine parallelism, cleaning device, fasteners, castings, welds, paint, rust prevention, completeness, and packaging. Test methods include no-load running, weighing, gap measurement, etc. Inspection follows GB/T 2828 single normal sampling plan, with nonconformities classified into A, B, and C categories for judgment.
本标准规定了机引横向搂草机的质量分等要求，包括分等指标、试验方法和检验规则。产品分为一等品和合格品两个等级，考核指标涵盖工作速度、漏搂率、首次无故障作业时间、金属耗量、草条宽度、离合器可靠性、搂齿质量、机架平面度、平行度、清草装置、紧固件、铸件、焊接件、涂漆、防锈、成套性及包装标志等。试验方法涉及空运转、称重、间隙测量等，检验规则采用GB/T 2828一次正常抽样方案，按A、B、C三类不合格进行判定。
Key Sentences extracted from text
本标准规定了机引横向搂草机质量分等指标、试验方法及检验规则。
搂草机按产品的技术水平和质量水平，分为一等品和合格品两个等级。
试验前所用的设备、仪器及工具应进行检定。
本标准按GB/T 2828规定采用一次正常抽方案，并使用一般检查水平Ⅰ。
当被检查的各类中不合格数小于或等于Ac 时，整批产品判为合格；当被检查的各类中任意一类或多类中不合格数大于或等于Re值，整批产品最终判为不合格。
This standard specifies the quality grading indicators, test methods and inspection rules for tractor-drawn transverse rakes.
Rakes are divided into two grades: first-grade product and qualified product, based on their technical level and quality level.
The equipment, instruments and tools used before the test shall be verified.
This standard adopts the single normal sampling plan according to GB/T 2828 and uses general inspection level I.
When the number of nonconformities in each inspected class is less than or equal to Ac, the entire batch is judged as acceptable; when the number of nonconformities in any one or more classes is greater than or equal to Re, the entire batch is finally judged as unacceptable.
Standard Timeline
Changes from replaced version:
- 对原标准作了编辑性修改，主要技术内容没有变化
- Editorial modifications were made to the original standard, with no changes to the main technical content.