GB/T 9239.1-2006: Mechanical vibration -- Balance quality requirements for rotors in a constant (rigid) state -- Part 1: Specification and verification of balance tolerances

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Scope

This Part of GB/T 9239 gives specifications for rotors in a constant (rigid) state. It
specifies:
a) balance tolerances,
b) the necessary number of correction planes, and
c) methods for verifying the residual unbalance.
Recommendations are also given concerning the balance quality requirements for
rotors in a constant (rigid) state, according to their machinery type and maximum
service speed. These recommendations are based on worldwide experience.
This Part of GB/T 9239 is also intended to facilitate the relationship between the
manufacturer and user of rotating machines, by stating acceptance criteria for the
verification of residual unbalances.
Detailed consideration of errors associated with balancing and verification of residual
unbalance are given in GB/T 9239.2.
This Part of GB/T 9239 does not cover rotors in a flexible state. The balance quality
requirements for rotors in a flexible state are covered by GB/T 6557.

Basic Data

Standard ID	GB/T 9239.1-2006 (GB/T9239.1-2006)
Description (Translated English)	Mechanical vibration -- Balance quality requirements for rotors in a constant (rigid) state -- Part 1: Specification and verification of balance tolerances
Sector / Industry	National Standard (Recommended)
Classification of Chinese Standard	N73
Classification of International Standard	21.120.40
Word Count Estimation	28,263
Date of Issue	2006-09-08
Date of Implementation	2007-02-01
Older Standard (superseded by this standard)	GB/T 9239-1988
Quoted Standard	GB/T 9239.2; ISO 1925-2001
Adopted Standard	ISO 1940-1-2003, IDT
Regulation (derived from)	China Announcement of Newly Approved National Standards No. 10 of 2006 (No. 97 overall)
Issuing agency(ies)	General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China, Standardization Administration of the People's Republic of China
Summary	This standard gives the steady state (stiffness) of the rotor specifications and provides: a) balance tolerance, b) the number of the required correction planes, c) residual unbalance test methods. Under steady state (rigid) Zhuangzi mechanical type and maximum operating speed, balance quality requirements of its recommendations. These recommendations are based on the experience at home and abroad. GB/T 9239 of the remaining provisions of this Part disequilibrium test acceptance criteria, rotating machinery to coordinate the relationship between producers and users. GB/T 9239. 2 explored in detail about the error and the residual unbalance balancing test. GB/T 9239 does not include this part of the state flexible rotor, rotor balancing for flexible state quality requirements see GB/T 6557.