Machinery Industry Standard of the People's Republic of China JB/T53523-2000 Multi-rope friction hoist Product quality classification (Internal use) 2000-03-30 Issued National Machinery Industry Bureau 2000-10-01 Implementation JB/T53523—2000 This standard is a revision of JB/T5352394 "Multi-rope friction hoist product quality classification". The product standard based on this standard is GB/T10599-1998 "Multi-rope friction hoist". Compared with JB/T5352394, this standard has basically not changed the main technical content except for the editorial modification of the original standard. However, in order to be more perfect and accurate, the expression of some technical contents has been modified, and some specific contents have been supplemented, mainly: - the product standard based on it has been changed to the new standard GB/T10599-1998 - the specific size, accuracy, and surface roughness of the original standard inspection part in Table 4 have been cancelled and replaced with the functional name of the part; - the accuracy requirements related to the inspection part and the measuring point diameter are supplemented with different inspection requirements corresponding to different diameters of the measuring point. This standard replaces JB/T53523-94 from the date of implementation. This standard is proposed and managed by the National Technical Committee for Standardization of Mining Machinery. The responsible drafting unit of this standard: CITIC Heavy Machinery Company. The main drafters of this standard: Jiang Zhaoqiu, Zhang Yingshuang, Li Gang, Cai Jingying, Tian Min. This standard was first issued in November 1987 as JB/ZQ8116-87, and the standard number was adjusted to JB/T53523-94 in September 1994. 1 Scope Machinery Industry Standard of the People's Republic of ChinabZxz.net Multi-rope friction hoist Product quality classification (Internal use) This standard specifies the quality grade, test method and inspection rules of multi-rope friction hoist products. This standard is applicable to the assessment of the quality grade of multi-rope friction hoist products. 2 Referenced standards JB/T53523-2000 Replaces JB/T53523-94 The provisions contained in the following standards constitute the provisions of this standard by reference in this standard. When this standard was published, the versions shown were all valid. All standards are subject to revision. Parties using this standard should explore the possibility of using the latest version of the following standards: GB/T 2281987 GB/T2301991 GB/T231—1984 GB/T1958——1980 GB/T3177—1997 GB/T 3768——1996 GB/T6060.2—1985 GB/T100951988 GB/T 10599—1998 JB/T32771991 JB/T3721—1999 JB/T3812—1999 JB47301994 JB8519—1997 JB/T535831999 Metal tensile test method Metal Rockwell hardness test method Metal Brinell hardness test method Shape and position tolerance inspection regulations Smooth workpiece size inspection Acoustic sound pressure method to determine the sound power level of noise source Simple method of measuring the surface by envelope above the reflecting surface Surface roughness comparison specimen Grinding, turning, milling, plugging and planing surface gradual Open-line cylindrical gear precision Multi-rope friction hoist Mine hoist and mine hoisting winch hydraulic station Mine hoist disc brake shoe Disc spring for mine hoist disc brakeNon-destructive testing of pressure vessels Mine hoist and mine hoisting winch disc brakeZZ, ZK planetary gear reducer product quality classification "Safety Regulations for Coal Mines" (1992 Edition) "Safety Regulations for Metallurgical Underground Mines" (1990 Edition) 3 Quality Grades 3.1 Grading Principles The quality grade of the product is determined according to the adopted standards, the technical level of the product, the inspection of the finished product, the quality inspection in the production process and the user's evaluation opinions. It is divided into three grades: qualified products, first-class products and superior products. 3.1.1 Qualified products Approved by the State Bureau of Machinery Industry on March 30, 2000, implemented on October 1, 2000 JB/T53523—2000 Organize production according to current standards, and the quality level of the actual products meets the requirements of the corresponding standards. 3. 1. 1. 1 The quality of the product production process is stable. 3.1.1.3 The accessories and supporting products can ensure that the main machine reaches the level of qualified products. 3.1.1.4 Users evaluate that the product performance meets the use requirements. 3.1.2 First-class products 3.1.2.1 The quality indicators of the product's structure, performance, accuracy, safety, hygiene, reliability and life span reach the general international level, and the quality level of the actual products reaches the general level of similar international products. 3.1.2.2 The quality of the product production process is stable. 3.1.2.3 Accessories and supporting products can ensure that the main machine reaches the first-class level. Users evaluate that the product has a good use effect and the product is competitive in the domestic market. 3.1.2.4 3.1.3 Superior products 3.1.3.1 The quality indicators of the product such as structure, performance, accuracy, safety, hygiene, reliability and life have reached the international advanced level, and the physical quality level has reached the advanced level in the past five years compared with similar foreign products. 3.1.3.2 The quality of the product production process is stable. 3.1.3.3 Accessories and supporting products can ensure that the main machine reaches the superior level. 3.1.3.4 Users evaluate that the product quality is equivalent to the advanced level of similar international products and the product is competitive in the international market. 3.2 Quality grade indicators The quality grade indicators of multi-rope friction hoists shall comply with the provisions of Table 1, Table 1 Quality grade Qualified products Superior products Finished product inspection Finished product inspection items Qualified rate Finished product inspection shall comply with the provisions of Table 2. Quality requirements Performance of the whole machine Performance of components Assembly, painting and packaging Quality inspection items Quality rate Item name Maximum static tension of wire rope Maximum static tension difference of wire rope Reducer Bearing temperature rise Oil pool temperature rise Main parts Key items Quality rate Main items Quality rate Value or requirement Qualified products||tt| |According to GB/T10599 regulations According to GB/T10599 regulations Superior products Quality requirements Comprehensive technical requirements Reliability And life Compatibility Safety and hygiene JB/T53523—2000 Table 2 (end) Project name Sealing of oil pipe joint Temperature rise of main bearing Braking torque Idle time of safety brake Deceleration during safe braking||tt| |Brake disc end Surface full runout Assessment parts Service life Disc outer diameter <4000mm Disc outer diameter ≥4000mm First overhaul period Service life of the whole machine Disc brake disc spring Reducer meshing Partial life Planetary gear Parallel shaft Spindle device rolling bearing Main motor Main electronic control Personal safety protection: Moving parts that affect safety are Protective measures Equipment safety protection measures: Drag, control, operation monitoring, etc. must have interlocking and protection devices Safety markings: Markings, sound and light signals Noise: Noise of the whole machine at the driver's position on the control panel (the control panel is not isolated) Quality inspection during production Assembly, painting and packaging quality inspection items should comply with the provisions of Table 3Table 3 Item name Static unbalanced torque of friction wheel D≤2.25m Friction wheel diameter 225m Tip: This standard content only shows part of the intercepted content of the complete standard. 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