AS 5227.1:2021 pdf free.Cranes – Requirements for mechanisms Part 1: General (ISO 10972-1:1998, MOD).
This part of ISO 10972 establishes requirements which apply generally to mechanisms and related components of cranes and lifting appliances as described in ISo 4306-1, ISO 4306-2 and ISO 4306-3.
Requirements concern:
a) general layout and design of mechanisms;
b) selection and/or design requirements of components;
c) instructions for manufacture, mounting, installation and testing.
Rules for proof of competence calculation regarding different limit states (yield strength, fatigue, wear) are excluded from this part of ISO 10972.
2 Normative references
The following standards contain provisions which, through reference in this text, constitute provisions of this part of ISO 10972. At the time of publication, the editions indicated were valid. All standards are subject to revision, and parties to agreements based on this part of ISO 10972 are encouragedto investigate the possibility of applying the most recent editions of the standards indicated below.
Members of IEC and ISO maintain registers of currently valid International Standards.
ISO 1328-1:1995, Cylindrical gears一ISO system of accuracy一Part 1: Definitions and allowable values of deviations relevant to corresponding flanks of gear teeth.
ISO 2408:1985, Steel wire ropes for general purposes一Characteristics.
ISO 3077:- -1), Short link chain for lifting purposes 一Grade T (8), calibrated, for chain hoists and other lifting appliances.
ISO 4301-1:1986, Cranes and lifting appliances 一 Classification一Part 1: General.
ISO 4306-1 ;1990, Cranes一Vocabulary 一Part 1: General.
ISO 4306-2:1994, Cranes一Vocabulary 一Part 2: Mobile cranes.
IS0 4306-31991, Cranes一Vocabulary一Part 3: Tower cranes.
ISO 4308-1 ;1986, Cranes and lifting appliances一Selection of wire ropes一Part 1: General.
ISO 4309:1990, Cranes一Wire ropes一Code of practice for examination and discard.
ISO 4310:1981, Cranes一Test code and procedures.
ISO 4347:1992, Leaf chains, clevises and sheaves.
3 Definitions
For the purposes of this part of ISO 10972, the definitions given in ISO 4306-1, ISO 4306-2 and ISO 4306-3 and the following definitions apply.
3.1 in-service braking Stopping or slowing the crane motion with the motor disconnected, through an immediate and easy control by the operator from the normal working position.
3.2 out-of-service braking Avoiding unwanted starts for indefinite periods of time.
Note 1 to entry: Actuation may be automatic or manual.
3..3 emergency braking Stopping the crane motion or motions in the case of loss of power or pressure supply through engagement with a limiting device or the activation of an emergency stop switch.
3.4 control braking Maintaining a desired speed, automatically or by the operator, with the motor engaged.
3.5 chain drive Device for supporting and moving loads via chain and roller arrangement.AS 5227.1 pdf download.
Tags: Requirements for mechanisms
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