21.120.40 平衡和平衡机 标准查询与下载



共找到 193 条与 平衡和平衡机 相关的标准,共 13

Mechanical vibration — Rotor balancing — Part 21: Description and evaluation of balancing machines

ICS
21.120.40
CCS
发布
2019-11-30
实施

Mechanical vibration — Rotor balancing — Part 14: Procedures for assessing balance errors

ICS
21.120.40
CCS
发布
2019-11-30
实施

Mechanical vibration — Rotor balancing — Part 23: Enclosures and other protective measures for the measuring station of balancing machines

ICS
21.120.40
CCS
发布
2019-11-30
实施

Mechanical vibration — Rotor balancing — Part 32: Shaft and fitment key convention

ICS
21.120.40
CCS
发布
2019-11-30
实施

Mechanical vibration — Rotor balancing — Part 21: Description and evaluation of balancing machines

ICS
21.120.40
CCS
发布
2019-11-30
实施

Mechanical vibration — Rotor balancing — Part 14: Procedures for assessing balance errors

ICS
21.120.40
CCS
发布
2019-11-30
实施

Mechanical vibration — Rotor balancing — Part 32: Shaft and fitment key convention

ICS
21.120.40
CCS
发布
2019-11-30
实施

What is ISO 21940 ‑ 1- Rotor balancing of machines about?      ISO 21940 ‑ 1 is the first part of a series of documents is applicable to mechanical vibration for rotor balancing.     ISO 21940 ‑ 1 provides a general background to balancing technology, as used in the ISO 21940 series, and directs the reader to the appropriate parts of the series that include vocabulary, balancing procedures and tolerances, balancing machines, and machine design for balancing.

Mechanical vibration. Rotor balancing. Introduction

ICS
21.120.40
CCS
发布
2019-02-28
实施
2019-02-28

This document provides a general background to balancing technology, as used in the ISO 21940 series, and directs the reader to the appropriate parts of the series that include vocabulary, balancing procedures and tolerances, balancing machines and machine design for balancing. Individual procedures are not included here as these can be found in the appropriate parts of ISO 21940.

Mechanical vibration — Rotor balancing — Part 1: Introduction

ICS
21.120.40
CCS
发布
2019-02-19
实施

This document specifies requirements and provides calculations for the permissible static and dynamic residual unbalances of rotating single tools and tool systems. It is based on the guideline that unbalance related centrifugal forces induced by the rotational speed do not harm the spindle bearings, as well as prevent unbalance related impairments of machining processes, tool life and work piece quality. NOTE 1 Tools and tool systems covered by this document are, for example, those with hollow taper interfaces (HSK) according to ISO 12164-1 and ISO 12164-2, modular taper interface with ball track system according to the Modular tool systems are another important and complex issue of this document. Calculations and process descriptions for balancing these components and the assembled tool systems are included. This document is putting an important focus on the possible clamping dislocations of tool shanks and their effects on the balancing procedure. These dislocations can occur between a tool or a tool system and the machine tool spindle (e.g. with every tool change), as well as within a modular tool system during its assembly. NOTE 2 Unfavourable process or system conditions (e.g. partial resonances of the machine structure generated by particular rotational speeds) or design and machine-related technical conditions (e.g. the projecting length of the axes, narrow space conditions, vibration susceptible devices, clamping devices and tool design) may lead to increased vibration loads and balancing requirements. This is dependent on the individual interaction of the machine and the tool spindle system and cannot be covered by a standard. A deviation from the recommended limit values of this document can be required in individual cases. NOTE 3 Wear of the shank interfaces may lead to possible variations of the clamping situation and thus to worse run-out and balancing conditions. These errors cannot be specifically addressed in a standard.

Balancing of rotating tools and tool systems

ICS
21.120.40
CCS
发布
2017-10-25
实施

本标准规定了高速平衡机的术语和定义、符号和单位、基本参数、技术要求、检验方法、检验规则、标志与包装。 本标准适用于对各类卧式高速旋转的转子进行多平面、多转速平衡试验用的高速平衡机。

High speed balancing machine

ICS
21.120.40
CCS
N73
发布
2017-04-12
实施
2018-01-01

Mechanical vibration-Methods and criteria for the mechanical balancing of flexible rotors

ICS
21.120.40
CCS
发布
2016-12-29
实施

Mechanical vibration-Methods and criteria for the mechanical balancing of flexible rotors

ICS
21.120.40
CCS
发布
2016-12-29
实施

This part of ISO 21940 specifies procedures to be adopted when balancing medium and large rotors installed in their own bearings on site. It addresses the conditions under which it is appropriate to undertake in-situ balancing, the instrumentation required, the safety implications and the requirements for reporting and maintaining records. This part of ISO 21940 can be used as a basis for a contract to undertake in-situ balancing. It does not provide guidance on the methods used to calculate the correction masses from measured vibration data. NOTE The procedures covered in this part of ISO 21940 are suitable for medium and large machines. However, many of the principles are equally applicable to machines of a smaller size, where it is necessary to maintain good records of the vibration behaviour and the correction mass configurations.

Mechanical vibration -- Rotor balancing -- Part 13: Criteria and safeguards for the in-situ balancing of medium and large rotors

ICS
21.120.40
CCS
发布
2016-12-22
实施

This part of ISO 21940 specifies the requirements for the following: a) identifying errors in the unbalance measuring process of a rotor; b) assessing the identified errors; c) taking the errors into account. This part of ISO 21940 specifies balance acceptance criteria, in terms of residual unbalance, for both directly after balancing and for a subsequent check of the balance quality by the user. For the main typical errors, this part of ISO 21940 lists methods for their reduction in an informative annex.

Mechanical vibration -- Rotor balancing -- Part 14: Procedures for assessing balance errors

ICS
21.120.40
CCS
发布
2016-12-22
实施

This part of ISO 21940 specifies methods for determining machine vibration sensitivity to unbalance and provides evaluation guidelines as a function of the proximity of relevant resonance rotational speeds to the operating speed. This part of ISO 21940 is only concerned with once-per-revolution vibration caused by unbalance. It also makes recommendations on how to apply the numerical sensitivity values in some particular cases. It includes a classification system that can be applied to machines which is related to their susceptibility to a change in unbalance. Machines are classified into three types of susceptibility and five ranges of sensitivity. The sensitivity values are intended for use on simple machine systems, preferably with rotors having only one resonance speed over their entire operating speed range. The sensitivity values can also be used for machines that have more resonance speeds in their operating speed range if the resonance speeds are widely separated (e.g. by more than 20 %). The sensitivity values given are not intended to serve as acceptance specifications for any machine group, but rather to give indications regarding how to avoid gross deficiencies as well as specifying exaggerated or unattainable requirements. They can also serve as a basis for more involved investigations (e.g. when in special cases a more exact determination of the required sensitivity is necessary). If due regard is paid to the values given, satisfactory running conditions can be expected in most cases. The consideration of the sensitivity values alone does not guarantee that a given magnitude of vibration in operating is not exceeded. Many other sources of vibration can occur which lie outside the scope of this part of ISO 21940.

Mechanical vibration -- Rotor balancing -- Part 31: Susceptibility and sensitivity of machines to unbalance

ICS
21.120.40
CCS
发布
2016-12-22
实施

Mechanical vibration. Rotor balancing. Procedures and tolerances for rotors with rigid behaviour

ICS
21.120.40
CCS
发布
2016-11-30
实施
2016-11-30

This document establishes procedures and unbalance tolerances for balancing rotors with rigid behaviour. It specifies a) the magnitude ofthe permissible residual unbalance, b) the necessary number of correction planes, c) the allocation ofthe permissible residual unbalance to the tolerance planes, and d) howto accountforerrors in the balancingprocess. NOTE In ISO 21940-14, the assessment of balancing errors is considered in detail. Fundamentals of rotor balancingare contained in ISO 19499 which gives an introduction to balancing. This document does not cover the balancing of rotors with flexible behaviour. Procedures and tolerances for rotors with flexible behaviour are dealt with in ISO 21940-12 .

Mechanical vibration - Rotor balancing - Part 11: Procedures and tolerances for rotors with rigid behaviour

ICS
21.120.40
CCS
N73
发布
2016-11-00
实施

Mechanical vibration - Rotor balancing - Part 12: Procedures and tolerances for rotors with flexible behaviour (ISO 21940-12:2016)

ICS
21.120.40
CCS
J04
发布
2016-09
实施

Mechanical vibration. Rotor balancing. Procedures and tolerances for rotors with flexible behaviour

ICS
21.120.40
CCS
发布
2016-04-30
实施
2016-04-30



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