JB/T 51160-1999
Hand-held Rock Drills - Product Quality Grading (Internal Use)
手持式凿岩机 产品质量分等（内部使用）
Catalogue
前言 → 1 范围 → 2 引用标准 → 3 技术要求 → 4 产品质量等级划分 → 5 产品质量指标 → 6 试验方法 → 7 检验规则 → 附录A Foreword → 1 Scope → 2 Normative References → 3 Technical Requirements → 4 Product Quality Grade Classification → 5 Product Quality Indicators → 6 Test Methods → 7 Inspection Rules → Appendix A
Scope
This standard specifies the technical requirements, product quality grade classification, product quality indicators, test methods, and inspection rules for hand-held rock drills. This standard applies to the product quality grading of hand-held rock drills.
本标准规定了手持式凿岩机产品的技术要求、产品质量等级划分、产品质量指标、试验方法和检验规则。本标准适用于手持式凿岩机产品质量分等。
Normative References
Keywords
Application Summary AI generated
Manufacturers of hand-held rock drills use this standard to grade their products into qualified, first-class, or premium quality levels. Quality inspection agencies and users also rely on it for product acceptance and selection. By specifying key performance indicators (such as air consumption, impact energy, and wear part life) along with strict inspection rules, the standard ensures reliable and consistent product quality.
手持式凿岩机的制造商使用本标准对其产品进行质量等级评定，以确定产品属于合格品、一等品还是优等品。质检机构和用户也可依据本标准对产品进行验收和选型。该标准通过规定关键性能指标（如耗气量、冲击能、易损件寿命）和严格的检验规则，确保了产品质量的可靠性和一致性。
AI Summary AI generated
This standard JB/T 51160-1999 specifies the product quality grading requirements for hand-held rock drills, applicable to the quality assessment of such products. It classifies products into three grades: qualified, first-class, and premium, and details specific indicators for each grade, including idle speed, impact energy, air consumption, noise, cleanliness, mean time to first failure, and wear part life. The standard also defines test methods and inspection rules, including sampling plans and nonconformity classification, to ensure consistent and reliable product quality.
本标准JB/T 51160-1999规定了手持式凿岩机的产品质量分等要求，适用于该类产品的质量评定。标准将产品分为合格品、一等品和优等品三个等级，并详细列出了各等级在空转转速、冲击能、耗气量、噪声、清洁度、首次故障前平均延米及主要易损件寿命等方面的具体指标。此外，标准还规定了试验方法、检验规则（包括抽样方案和不合格分类），以确保产品质量的稳定性和可靠性。
Key Sentences extracted from text
本标准规定了手持式凿岩机产品的技术要求、产品质量等级划分、产品质量指标、试验方法和检验规则。
产品按质量水平和使用价值分为合格品、一等品和优等品三个等级。
产品除应符合JB/T 7301 的规定外，其质量等级按本标准评定。
凡被检验项目不符合第5 章的规定均为不合格。
抽样应在生产企业的成品库或用户中随机抽取。
This standard specifies the technical requirements, product quality grade classification, product quality indicators, test methods, and inspection rules for hand-held rock drills.
Products are classified into three grades: qualified product, first-class product, and premium product, based on quality level and use value.
In addition to complying with the provisions of JB/T 7301, the quality grade of products shall be assessed according to this standard.
Any inspected item that does not meet the requirements of Chapter 5 shall be considered nonconforming.
Sampling shall be carried out randomly from the manufacturer's finished product warehouse or from users.
Standard Timeline
Changes from replaced version:
- 取消了对缸径与行程的规定
- 增加了每米凿孔耗气量指标，取消了凿岩速度指标
- 根据产品标准对空转转速指标作了修改
- 增加了对产品主要易损件废弃极限的规定
- 提高了产品不合格分类中A类的合格品和一等品的判定指标
- 增加了YH20LY产品的质量分等
- Removed the provisions on cylinder bore and stroke
- Added the indicator of air consumption per meter of drilling, removed the drilling speed indicator
- Modified the idle speed indicator according to the product standard
- Added provisions on the discard limits of main wear parts
- Raised the judgment indicators for qualified and first-class products in Class A of product nonconformity classification
- Added quality grading for YH20LY product