JIS-F-3421-1973-ENG.pdf
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1、I JIS F*342L 73 m 4933608 0044993 5 m UDC 621.861.2:629.12 TI I J The text in Japanese of this English version has been supersed by the bearer JIS of recent year. JAPANESE INDUSTRIAL STANDARD Ships Cargo Lifting Steel Blocks JE F 3421 -1973 Translated and Published by Japanese Standards Association
2、4 DTMTFn TN ,lAPAN 9 s I Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/14/2007 19:54:45 MDTNo reproduction or networking permitted without license from IHS -,-,- J IS F*3421 73 4933b08 0044994 Tr
3、anslation without Guarantee In the event of any doubt arising, the original standards in Japanese are to be evidence F 3421-1973 Japanese Text Established by Minister of International Trade and Industry Date of Establishment: March 26, 1954 Date of Revision: Date of Public Notice in Official Gazette
4、: Investigated by: August 1 , 1973 August 9, 1973 Japanese Industrial Standards Committee Technical Committee on Ships ( C h a h a n : NISHIYAMA Yacutake) Divisional Council on Ship Building (Chairman: AIDA Tyzir) Cargo Gears This English translation is published by: Japanese Standards Association 1
5、-24, Akasaka 4, Minato-ku, Tokyo, 107 Japan 1974 0 Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/14/2007 19:54:45 MDTNo reproduction or networking permitted without license from IHS -,-,- _ - : u
6、 JIS F*342L 73 E 4933608 0044995 9 E UDC 621 ,861 .2:629.12 JAPANESE INDUSTRIAL STANDARD J I S Ships Cargo Lifting Steel Blocks F 3421-1973 I . Scope This standard provides for ships cargo lifting steel blocks, hereinafter referred to as “block“, 2. Classification The block shall be classified as gi
7、ven in Table 1. Table I Remarks I . The first letters I , 2, 3 and 4 in the type symbol represent respectively -single, double, treble and quadruple block, The second letter A in the type symbol represents the block without becket and B with becket. 2. Applicable Standards : JIS B 0207-Metric Fine S
8、crew Threads JIS B 1351-Split Pin JIS B 2801-Shackles JIS B 2802-Thimbles JIS G 3101-Rolled Steel for General Structure JIS G 3452-Carbon Steel Pipes for Ordinary Piping JIS G 4051-Carbon Steel for Machine Structural Use JIS G 4801-Spring Steel JIS G 5101-Carbon Steel Castings JIS G 5501-Grey Iron C
9、astings JIS G 5702-Black Heart Malleable Iron Castings JIS H 3201-Brass Sheets and Plates JIS H 3422-Free Cutting Brass Rods and Bars JIS H 5 11 1-Bronze Castings Reference Standard: JIS B 1251-Spring Lock Washer Copyright Japanese Standards Association Provided by IHS under license with JSALicensee
10、=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/14/2007 19:54:45 MDTNo reproduction or networking permitted without license from IHS -,-,- I JIS F*3421 73 4933b08 004499b O L . , 2 F 3421-1973 3, Construction, Shape and Dimensions The construction, shape and dimensions shall be as sh
11、own in Figs. I to 9 and comply with the following requirements: (I) Shackles shall conform to JIS B 2801-SB o r BB, Where a block type IA, IB, 2A or 2B is used in guy tackle, shackle pin may be of screwed type. Split pins shall conform to JIS B 1351. Thimbles shall conform to JIS B 2802 type B, howe
12、ver, type A may be used as necessary. Dimensions of L and angle of 65 for types IA, IB, 2A and 2B may be changed to some extent. -YI (2) (3) (4) (5) When the side plates for types IA, IB, 2A and 2B are made of steel plate, the side plates may be welded to the fork. Screw threads on the swivel shall
13、conform to JIS B 0207. Lightening holes of side plates and partition plates may not necessarily be cut. , Ma-3rial The materials shall be as given in Table 2. Table 2 Material No. Parts Swivel JIS G 4051-S 25 C 1 2 JIS G 4051-S 25 C JIS G 4051-S 25 C JIS G 3101-SS 41 Nut for swivel Double block and
14、more Crosshead 3 JIS G 5101-SC 46 o r JIS G 4051-S 25 C JIS G 4051-S 25 C 4 5 Bolt and hexagon nut for crosshead double block Treble and Side plate and partition plate JIS G 5702-FCMB or JIS G 3101-SS 41 6 JIS G 3101-SS 41 quadruple block Axle pin and nut Check piece Countersunk head bolt and hexago
15、n nut Stay bolt and hexagon nut JIS G 4051-S 25 C 7 8, Steel plate Steel bar 9 Steel bar 10 JIS G 3452-SGP I I Distance piece 12 Steel wire Rope guard Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 0
16、3/14/2007 19:54:45 MDTNo reproduction or networking permitted without license from IHS -,-,- No. 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 1 J I S F*342L 73 m 4933608 0044997 2 : 3 F 3421-1973 Table 2. (Contd) Parts Material Washer SIS H 3201-BsP or J E H 3422-BsBMD2 or BsBME2 Lowe
17、r hexagon head bolt and nut Distance piece JIS G 3452-SGP Becket JIS G 3101-SS 41 Bolt and hexagon nut for becket JIS G 3101-SS 41 JIS G 3101-SS 41 Rib for becket JIS G 3101-SS 41 Distance piece JIS G 3452-SGP JIS G 3101-SS 41 or JIS G 4051-S 25 C Swivel holder Hexagon nut for swivel JIS G 4051-S 25
18、 C JIS G 5501-FC 20 or JIS G 5101-SC 42 JIS H 5111-BC 6 Sheave Bush for sheave Set screw for sheave Shackle Grease nipple Brass Split pin Brass wire Thimble Steel bar Conform to JIS B 2801 Conform to JIS B 2802 Cover for grease nipple JIS G 3452-SGP Spring washer JIS G 4801-SUP Check piece Steel pla
19、te Set bolt Steel bar 5. Tests and Inspection Load Test 5.1 The block coupled with shackle shall be tested by applying the proof load in such a manner as given in Table 3 + Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing, Be
20、rnie Not for Resale, 03/14/2007 19:54:45 MDTNo reproduction or networking permitted without license from IHS -,-,- 5.6 1.4 7 9 14 22 28 8.4 10.5 13.5 21 33 42 -_-_- 1.75 2.25 3.5 5.5 7 I 1.4 I 1.751 2.25 I 3.5 5.5 I 7 2 A 2 240 I 280 13 17 6.5 8.5 340 430 480 240 280 340 1 430 480 26 41 48 * 16 20 3
21、2 45 54 13 21 28 8 10 16 25 34 - - _ _ - - - - - 4 A 4 B 3 A 3 4 F 3421-1973 Table 3 1 A I 1 B Testing method 220 I 240 1 280 I 340 I 430 I 480 I 220 I 240 I 280 1 340 I 430 I 480 Proof lord t Safe worklng load t -1 . Te sting method P w f l o a d t Sale worLing load t m Te sting method w n i d d i
22、a . mm 430 I 430 52 i- 56 430 I 430 60 I 66 Proof load t Safe working load t 32 I 36 40 I 4.4 5.2 Overhaul Inspection After the load test is satisfactorily finished, all parts shall be inspected by overhauling and be free from any defect. 6 . Designation The block shall be designated by title, type,
23、 nominal diameter, symbol for material sheave such as F for FC 20 and S for SC 42, and symbol of shackle. JIS number !y be used in place of the title. of ma Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Res
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