1、UDC 621.861 : 621.8W.87 DEUTSCHE NORM July 1982 oiN Serial lifting appliances Single and twin sheave bottom blocks for electric hoists Assembly 15 410 Unterflaschen fr Elektrozge, einrollig und zweirollig; Zusammenstellung Beuth Verlag GmbH. Berlin 30, has exclusive sale rights for German Standards
2、(DIN-Normen) 07.84 In keeping with current practice in standards published by the International Organization for Standardization (/SO), a comma has been used throughout as the decimal marker. Foreword This standard has been worked out on the basis of DIN 15 020 Part 1, February 1974 edit ion, in col
3、laboration with the Hauptverband der gewerblichen Berufsgenossenschaften, Zentrale fr Unfallverhtung und Arbeitsmedizin (Federation of Industrial Employers Liability Insurance Associations, Central Office for Accident Prevention and Occupa- tional Medicine) at Bonn. Dimensions in mm 1 Field of appli
4、cations and scope The specifications of this standard apply to supporting parts of electric hoists, which are used on their own or together with other equipment, e.g. cranes. The nominal rope diameters were determined in accordance with DIN 15 020 Part 1, and in particular in driving gear groups 1 B
5、m and 1 Am for wire ropes made of wire of nominal strength 1770 N/rnm2 (1 80 kp/mm2) and in the other driving gear groups wire of nominal strength 1570 N/md (160 kp/mm2). The nominal sheave diameters were determined in accordance with DIN 15020 Part 1 and are rounded up to the nearest nominal diamet
6、er for sheaves. Sheaves of the same diameter can be used for upper drums. When using wire ropes of greater strength, the nominal wire diameters and sheave diameters specified in DIN 15020 Part 1 can be used. If electric hoists are classified according to operating conditions and by agreement with th
7、e manufacturer into wire rope drive gear groups 4m or 5m. then the specifications of DIN 15020 Part 1 shall apply. This standard is intended to regulate the use of DIN 15020 Part 1 for electric hoists and to make the classification of bottom blocks into drive gear groups 1 B, 1 A, 2, and 3, easier f
8、or manufacturers and users. Continued on pages 2 to 4 DIN 15410 Engl. Pricegroup 4 Sales No. O104 Page 2 DIN Drive gear group Lifting Hook No. for Hook No. for capacity dl d2 strength class d, d2 strength class kg MIP MP 1 0, 1 Am - - - 630 - - - - 5 80 04 - 800 5 80 04 - 5,5 90 05 - - - 500 - - 100
9、0 5.5 90 05 - 6,5 100 08 - 1250 6.5 100 O8 - 7 112 08 - 1600 7 112 08 - 8 125 1 - Table 2. Twin sheave bottom blocks 2, 3, Hook No. for Hook No. for d, d2 strength class d, d2 strength class MP MP 5 90 04 - 5,5 112 05 - 5,5 100 05 - 6,5 125 08 - 6.5 112 O8 - 7 140 08 - 7 125 08 - 8 160 1 - 8 140 1 -
10、 9 180 1.6 1 9 160 1.6 1 10 200 1.6 1.6 Drive gear group Lifting kg 1000 - 1250 - capacity dl 1600 5 2000 5.5 2500 6,5 3200 7 4000 8 5000 9 6300 10 8000 111 16 O00 32000 I22 .- Hook No. for MIP MIP Drive gear groups in accordance with DIN 15020 Part 1. 180 16 280 8 6 18 I315 I 10 I 8 I I I 55 I112 I
11、 1 6,5 I 125 I 1.6 180 2.5 w 225 4 t 1 1.6 1.6 2.5 2.5 4 Strength classes in accordance with DIN 15400. I Page4 DIN 15410 3 Design The bottom blocks for electric hoists shall be designed in compliance with the following standards: - sheaves: - calculation of nominal wire rope diameters and sheave di
12、ameters: groove profiles and accuracy in accordance with DIN 15061 Part 1, the accuracy being subject to agreement; in accordance with DIN 15 020 Part 1. The values of nominal wire rope diameters and sheave diameters as given in the tables are minimum values. Thicker ropes up to 1,25 times the given
13、 values may be laid up with the same rope tensile force or lifting capacity without adverse effect on the service life, but the semi-diameter of the grooves shall be matched to the rope diameter. Larger sheave diameters increase the laying-up time of the wire rope. - Lifting hook suspensions and the
14、 lifting hooks used in them: Lifting hook suspensions for power driven serial lifting appliances conforming to DIN 15411. Strength class in accordance with DIN 15400. Type ASN with shape GSN single hook in accordance with DIN 15401 Part 2. Type AS with shape GS single hook in accordance with DIN 154
15、01 Part 2. Type AFN with shape GFNsingle hook in accordance with DIN 15401 Part 2. Type AF with shape GF single hook in accordance with DIN 15401 Part 2. Type BS with shape GS ramshorn hook in accordance with DIN 15402 Part 2. Type BF with shape GF ramshorn hook in accordance with DIN 15402 Part 2.
16、Regarding agreement on safety catch for GSN and GFN single hooks, see DIN 15 106. The rope outlet slots shall be designed so that the rope does not touch, even with the permitted rope deflection which occurs. The unavoidable skew position for only slightly loaded or unloaded twin sheave bottom block
17、s due to differ- ences in rotational speed of the sheaves is not important; the rope outlet slots shall be made sufficiently wide. - Bottom block cases Standards referred to DIN 15 020 Part 1 DIN 15061 Part 1 DIN 15106 DIN 15400 DIN 15401 Part 2 DIN 15402 Part 2 DIN 15411 Lifting appliances. basis f
18、or rope drives, calculation and design Lifting appliances; groove profiles for sheaves Lifting hooks for lifting appliances; safety catch for drop forged single hooks Lifting hooks for lifting appliances; mechanical properties, lifting capacities, actual stresses and materials Lifting hooks for lift
19、ing appliances; single hooks; finished parts with threaded shank Lifting hooks for lifting appliances; ramshorn hooks; finished parts with threaded shank Lifting appliances; lifting hook suspensions for bottom blocks Other relevant standards DIN 15408 DIN 15409 Cranes; twin sheave bottom blocks assembly Cranes; quadruple sheave bottom blocks assembly International Patent Classif ication B 66 D 3/20 F 16 H 55/50
