JB/T 9005.10-1999 JB/T 9005.10-1999 Technical requirements for cast pulleys for cranes JB/T9005.10-1999 Standard download decompression password: www.bzxz.net
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JB/T9005.10:1999 The wooden standard adopts DIN15063:1977 "Technical Conditions for Supply of Wire Rope Pulleys for Lifting Equipment". This standard is a revision of ZBJ80006.1087 "Technical Conditions for Cast Pulleys for Cranes". During the revision, only editorial changes were made to the original standard, and the main technical content remained unchanged. This standard is a part of the JB/T9005 series of standards "Cast Pulleys for Cranes", which includes the following 10 parts: JB/T 9005.1—1999 Cast Pulleys for Cranes JB/T 9005. 2-1999 JB/T 9005. 3-1999 JB/T 9005.4--1999 JB/T 9005.5 JB/T 9005. 6 JB/T 9005. 7--1999 JB/T 9005.8 - 1999 JB/T 9005. 9--1999 Cast pulley for crane Cast pulley for crane Cast pulley for crane Cast pulley for crane Cast pulley for cranebZxz.net Cast pulley for crane Cast pulley for crane Cast pulley for crane Cast pulley for crane JB/T9005.10-1999 This standard replaces ZBJ80006.10---87 from the date of implementation. Selection series and matching type of rope groove section , hub and bearing size technical conditions This standard is proposed and managed by the National Technical Committee for Standardization of Hoisting Machinery. The responsible drafting unit of this standard: Dalian Daqi Group Co., Ltd. The main drafters of this standard are Zhou Yu'an and Cui Zhenyuan. 452 1 Scope Machinery Industry Standard of the People's Republic of China Casting sheaves for cranes Technical conditions Casting sheaves for cranes--Technical requirementsJB/T 9005.10-1999 Replaces ZBJ80006.1087 This standard applies to the cast wire rope sheaves (hereinafter referred to as sheaves) specified in JB/T9005.4~~9005.9. 2 Cited standards The provisions contained in the following standards constitute the provisions of this standard through reference in this standard. When this standard is published, the versions shown are valid. All standards will be revised, and the parties using this standard should explore the possibility of using the latest versions of the following standards. Technical conditions for high-quality carbon structural steel GB/T 699—1988 GB/T 700- —1988 GB/T 1031 GB/T 1176—1987 GB/T 1348—1988 GB/T 1804- -1992 GB/T 9439---1988 GB/T 11352- Carbon structural steel Surface roughness Parameters and values Technical conditions for cast copper alloys Ductile iron castings General tolerances for linear dimensions without tolerances Grey iron castings Casting carbon steel parts for general engineering GB/T 13384 JB/T 9005. 4-—1999 General technical conditions for packaging of electromechanical products Casting pulleys for cranes JB/T 9005.5--1999 JB/T 9005. 6--1999 JB/T 9005.7- JB/T 9005. 8---1999 JB/T 9005. 9-1999 3 Technical requirements 3.1 Materials Cast pulley for crane Cast pulley for crane Cast pulley for crane Cast pulley for crane Cast pulley for crane The materials for the relevant parts of the pulley shall conform to the provisions of Table 1. 3.2 Appearance The surface of the pulley shall be smooth and flat, and sharp edges and risers shall be removed. The pulley shall not have defects that affect the performance and damage the appearance (such as pores, cracks, looseness, slag inclusions, casting scars, etc.). Approved by the State Bureau of Machinery Industry on 1999-06-28, implemented in 2000-0101 Parts name Inner bushing JB/T9005.10-1999 Cast steel shall not be lower than ZG270-500 in GB/T11352Cast steelCast iron shall not be lower than HT200 in GB/T9439Gray cast ironNodular cast iron shall not be lower than QT400-18 in G13/T1348Structural steel shall not be lower than 45 steel in GB/T699Structural steel shall not be lower than Q235A steel in GB/T700Cast iron shall not be lower than HT250 gray cast iron Cast iron should not be lower than HT150 gray cast iron in GB/I9439 Structural steel should not be lower than Q215A steel in FGB/T700 Structural steel should not be lower than Q235B steel in GB/T700: Cast iron should not be lower than HT150 gray cast iron in GB/T9439 Structural steel should not be lower than 45 steel in G13/T699 [Copper alloy should not be lower than ZCuAl10Fe3 bronze in GB/T1176 Note: For cranes with higher working levels (such as metallurgical cranes), cast iron pulleys are not allowed. 3.3 Heat treatment The pulley should be annealed to eliminate casting or welding stress. 3.4 Dimensional tolerance and surface roughness The tolerance grade of the machining surface card tolerance size shall be m grade (medium grade) in GB/T1804, and the unmarked machining surface roughness Ru value shall be 25μm in GB/T1031. 3.5 Form and position tolerances The shape and position tolerances of the pulley shall comply with the provisions of Table 2. 3.6 Assembly The assembled pulley shall be able to rotate flexibly. 3.7 Others The processed parts (inner hole, rope groove surface, etc.) and the exposed parts of the pulley shall be coated with anti-corrosion anti-rust oil; the unprocessed parts shall be coated with anti-rust paint. Type Roundness Line profile Symbol description Hub hole Cross section Allowed geometric tolerance Roundness tolerance! Tolerance zone of wheel support Line profile within the tolerance zone of rope groove radius 1: Limit deviation of three rope groove radius 4 Inspection rules Circular runout JB/T9005.10--1999 Table 2 (end) Symbol description Allowed geometric tolerance Rope groove bottom circular runout tolerance 1: Pulleys should be inspected by the technical inspection department of the manufacturer. For each set of pulleys manufactured, The dimensions, technical requirements and markings shall be checked and shall comply with the requirements of this standard. 5 Marking, packaging, transportation and storage 5.1 Marking Each pulley shall have a permanent and clear mark of the pulley standard number and the trademark of the manufacturer, and the mark shall be located in a conspicuous position on the pulley. 5.2 Packaging The packaging of the pulley shall ensure that it is not damaged or corroded and shall comply with the provisions of GB/T13384. 5.3 Transportation Pulleys shall be strictly prohibited from being bumped during transportation and shall not be damaged. 5.4 Storage Pulleys shall be stored in a dry and ventilated place and shall not come into contact with acidic, alkaline or other corrosive substances; and shall be protected from rain, snow, water and long-term exposure to the sun. 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