JB/T 53588-1999
WK–4 Excavator Product Quality Grading (Internal Use)
WK–4 挖掘机 产品质量分等（内部使用）
Catalogue
前言 → 1 范围 → 2 引用标准 → 3 质量等级 → 4 试验方法 → 5 检验规则 Foreword → 1 Scope → 2 Normative References → 3 Quality Grades → 4 Test Methods → 5 Inspection Rules
Scope
This standard specifies the quality grades, test methods, and inspection rules for WK–4 mining mechanical face-shovel excavator (hereinafter referred to as excavator) and its series products. This standard is applicable to evaluating the quality grades of WK–4 excavator and its series products.
本标准规定了WK–4 型矿用机械正铲式挖掘机（以下简称挖掘机）及其系列产品的质量等级、试验方法和检验规则。本标准适用于评定WK–4 型挖掘机及其系列产品的质量等级。
Normative References
Keywords
Application Summary AI generated
Mining machinery manufacturers and quality inspection agencies use this standard to grade the quality of WK–4 excavators, ensuring products meet qualified, first-class, or premium levels. By specifying detailed test methods and inspection rules, it helps improve excavator reliability and service life, safeguarding mining operation safety and efficiency.
矿山机械制造企业和质量检验机构使用本标准来评定WK–4型挖掘机的质量等级，确保产品达到合格品、一等品或优等品的要求。该标准通过规定详细的试验方法和检验规则，帮助提升挖掘机的可靠性和使用寿命，保障矿山作业的安全与效率。
AI Summary AI generated
This standard specifies quality grades, test methods, and inspection rules for WK–4 mining mechanical face-shovel excavators. Products are classified into qualified, first-class, and premium grades based on technical level, finished product inspection, production quality checks, and user feedback. It details indicators for overall performance, component performance, reliability and life, along with inspection requirements for finished products, assembly/painting/packaging, and key part manufacturing. Test methods cover lifting force, crowding force, speed, and clearance measurements, while inspection rules define sampling and judgment procedures.
本标准规定了WK–4型矿用机械正铲式挖掘机的质量等级、试验方法和检验规则。产品分为合格品、一等品和优等品三个等级，依据技术水平、成品检验、生产过程质量检查和用户评价确定。标准详细列出了整机性能、部件性能、可靠性与寿命等指标，以及成品检验、装配涂漆包装和主要零件加工制造质量的检验要求。试验方法包括提升力、推压力、速度、间隙等测试，检验规则规定了抽样和判定方法。
Key Sentences extracted from text
本标准规定了WK–4 型矿用机械正铲式挖掘机（以下简称挖掘机）及其系列产品的质量等级、试验方法和检验规则。
产品的质量等级根据采用的标准、产品的技术水平、成品检验、生产过程中的质量检查和用户评价意见几个方面来确定，分为合格品、一等品和优等品三个等级。
WK–4 型挖掘机的质量等级指标应符合表1 的规定。
所有检测项目只允许在抽样中检查评定，任何项目不合格时不允许再加倍抽查。
按实测结果的最低等级评定整批产品的质量等级。
This standard specifies the quality grades, test methods, and inspection rules for WK–4 mining mechanical face-shovel excavator (hereinafter referred to as excavator) and its series products.
The quality grade of the product is determined based on the adopted standards, product technical level, finished product inspection, quality inspection during production, and user evaluation opinions, and is divided into three grades: qualified product, first-class product, and premium product.
The quality grade indicators for WK–4 excavator shall comply with the provisions of Table 1.
All inspection items are only allowed to be assessed in sampling; if any item is unqualified, double sampling is not permitted.
The quality grade of the entire batch of products is assessed based on the lowest grade of the measured results.
Standard Timeline
Changes from replaced version:
- 表2 的部件性能中增加了斗臂与滑板的间隙检查项目
- 表3 中取消了铜套间隙
- 回转立轴仅保留了性能和与轴承配合处的要求
- Added inspection item for clearance between bucket arm and slide plate in component performance of Table 2
- Removed copper bushing clearance in Table 3
- Rotary vertical shaft only retained requirements for performance and bearing fit