JB/T 1880-1999 This standard is a revision of JB 1880-77 "Types and Basic Parameters of Counter-blow Hammers". During the revision, only editorial changes were made according to relevant regulations, and the main technical content remained unchanged. This standard specifies the types and basic parameters of counter-blow hammers. This standard is applicable to steam (air) driven, hydraulically linked or steel belt linked counter-blow hammers. The counter-blow hammers are suitable for supporting joint operations and batch production of various die forgings. This standard was first issued on October 1, 1977. JB/T 1880-1999 Types and Basic Parameters of Counter-blow Hammers JB/T1880-1999 Standard download decompression password: www.bzxz.net

ICS25.120.10
Machinery Industry Standard of the People's Republic of China
JB/T1880-1999
Counter HowhammerTypes and basic parameter1999-06-28 Issued
National Machinery Industry Bureau
2000-01-01 Implementation
JB/T1880—1999
This standard is a revision of JB188077 "Counter Howhammer
Types and basic parameters". During the revision, the original standard was edited and the main technical content remained unchanged.
This standard replaces JB1880—77 from the date of implementation. This standard is proposed and managed by the Technical Committee for Standardization of Metallurgical Equipment. The drafting unit of this standard: Taiyuan Heavy Machinery (Group) Co., Ltd. The main drafter of this standard is Yao Zukang. bzxZ.net
This standard was first issued in October 1977. 1
1 Scope
Machinery Industry Standard of the People's Republic of China
CounterblowhammerTypesandbasicparameter
CounterblowhammerTypesandbasicparameter This standard specifies the types and basic parameters of counterblow hammers. This standard is applicable to steam (air) driven, hydraulically linked or steel belt linked counterblow hammers. The counterblow hammers are suitable for supporting joint operations and batch production of various die forgings. 2 Types and basic parameters
2.1 The types of counterblow hammers are shown in Figure 1.
2.2 The basic parameters of the counterblow hammers shall comply with the provisions of Table 1. Figure 1
National Machinery Industry Bureau approved JB/T1880-1999 on June 28, 1999
Replaced JB1880-77
Implementation on January 01, 2000
Nominal striking energy
Guide rail clearance B
Hammer length L
Hammer stroke H
Nominal die height h
Minimum die height hMinimum
Maximum number of strikes n
Linkage mode
Medium and pressure
times/min
1880-1999
Steel belt or hydraulic
Air or steam
1The maximum number of strikes is the theoretical calculated value under the safety stroke. The basic parameters of 21600kl are recommended values
0.7-0.9MPa
Nominal pressure
Mechanical industry standards
Beat hammer types and basic parameters
JB/T1880-1999
Published by the Mechanical Science Research Institute
Printed by the Mechanical Science Research Institute
(No. 2, Shouti South Road, Beijing: Postal Code 1000 44)*
Format 880×12301/16 Printing sheet 1/2 Number of words 6000 First printing in December 1999
First edition in December 1999
Print run 1-500
Price 500 yuan
No. 99-1209
Mechanical Industry Standard Service Network: http/AvwwJB.ac.cn6660881
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