JB/T 9006.2-1999 Types and dimensions of cast drums for cranes

JB/T 9006.2-1999 JB/T 9006.2-1999 Types and dimensions of cast drums for cranes JB/T9006.2-1999 Standard download decompression password: www.bzxz.net

JB/T9006.2-1999
This standard is a revision of ZBJ80007.2-87 "Casting reels for cranes". The main technical content has not changed. The type and size". When revising, only the original standard is revised. This standard is part of the JB/T9006 "Casting reels for cranes" series of standards, which includes the following two parts: JB/T9006.1-1999 True diameter and groove shape of casting reels for cranes
JB/T 9006.2--1999
Casting reels for cranes
JB/T 9006.3--1999
Casting reels for cranes
This standard replaces ZBJ80007.2-87 from the date of implementation. Appendix A of this standard is a prompt appendix.
Type and dimensions
Technical conditions
This standard is proposed and regulated by the National Technical Committee for Standardization of Hoisting Machinery! . The responsible drafting unit of this standard is Dalian Daqi Group Co., Ltd. The main drafters of this standard are Zhou Yu'an and Cui Zhenyuan. 460
1 Scope
Machinery Industry Standard of the People's Republic of China
Casting drums for cranes type and dimensionsJB/T9006.2---1999
Replaces ZB J80 007.2-87
This standard is mainly applicable to the casting drums for wire ropes (hereinafter referred to as drums) used for bridge cranes and gantry cranes. The drums used by other cranes can also be used for reference.
2 Types and sizes
The drum structure is divided into 4 types: A, B, C, and D. As shown in Figure 1 and Figure 4. It is recommended to use A and B types first. The drum dimensions should comply with the provisions of Tables 1 to 4 respectively. For examples of drum assembly structures, see Appendix A (suggested appendix). The drum length 1 value is recommended to use the R40 series. Left (right) groove ZXP
nxD, evenly distributed
Note: \2\ in the figure is the number of drum grooves.
Marking example:
Right (left) groove Z×P
nxD, uniform distribution
Figure IA type
Diameter of drum D=500mm, length L=1500mm: groove bottom radius R=10mm, standard groove pitch P,=20mm; lifting height II=12m, pulley ratio α=4; the drum groove near the reducer-end is the left A-type drum, marked as: drum A500X1500-10×20-12X4-left JB/T9006.2--1999 Approved by the State Machinery Industry Bureau on 1999-06-28 and implemented on 2000-01-01
JB/T 9006.2—1999
Note: D, is determined by cast iron material, and can be appropriately changed according to the lifting weight and material changes. O
Left (right) groove Z×piece
Marking example:
Right (left) groove Z×F
[Za4-B
Figure 2 Type B
Roll diameter D=800mm, length L3000mm; groove bottom radius R15mm, standard groove spacing P,=31mm: lifting height H=16m, pulley times Rate a=5; B-type reel with the reel groove facing right near the reducer is marked as: reel B800X3000-15×31-16X5-right JB/T9006.2--1999462
JB/T9006.2-1999
Note: D is determined according to cast iron material, and appropriate changes are allowed according to the change of lifting weight and material. Left (right) direction precision Z×P /m [Right (left) direction precision z×P. Le
des5zzakzzzzz
3435342
Marking example:
Figure 3C type
2201120
ng×Dr uniform distribution
Drum diameter D=500mm, length L=1500mm; groove bottom radius R=10mm, standard groove pitch P,=20mm; lifting height H=12m, pulley ratio α=4. The drum groove direction is left near the reducer end. C-type drum. Marking: Drum C500×1500-10×20-12×4-left JB/T 9006.2--1999
Note: D is determined according to cast iron material, and appropriate changes are allowed according to the lifting weight and material changes. 32
Marking example:
Left (right) groove Z×P』
JB/T 9006.2
Right (left) 2×P/a
naxDaka
Figure 4D type
o ? : A
n.×D, uniform distribution
Drum diameter D=800mm. Length l.=3000mm: groove bottom radius R15mm, standard groove pitch P=31mm; lifting height II=16m, pulley ratio a=5; the drum groove near the reducer end is right-handed U-shaped drum, marked as: drum D800×3000-15×31-16×5-right JB/T9006.2--1999 Table 4
14001320
(pieces)
Note: D. Determined by cast iron material, and allowed to be appropriately changed according to the lifting weight and material changes. 464bZxz.net
(pieces)
JB/T 9006.2 --1999
Appendix A
(Suggestive Appendix)
Example of crane drum assembly structure
Figure AA type
Figure A2B type
JB/T 9006.2--- 1999
Figure A3C type
Figure A4D type
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