AS 5227.1:2021 pdf Cranes — Requirements for mechanisms
1 Scope
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 encouraged to 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 — ISO system of accuracy — Part 1: Definitions and allowable values of deviations relevant to corresponding flanks of gear teeth.
ISO 2408:1985, Steel wire ropes for general purposes — Characteristics.
ISO 3077:— 1) , Short link chain for lifting purposes — Grade T (8), calibrated, for chain hoists and other lifting appliances.
ISO 4301‑1:1986, Cranes and lifting appliances — Classification — Part 1: General.
ISO 4306‑1 ;1990, Cranes — Vocabulary — Part 1: General.
ISO 4306‑2:1994, Cranes — Vocabulary — Part 2: Mobile cranes.
ISO 4306‑31991, Cranes — Vocabulary — Part 3: Tower cranes.
ISO 4308‑1 ;1986, Cranes and lifting appliances — Selection of wire ropes — Part 1: General.
ISO 4309:1990, Cranes — Wire ropes — Code of practice for examination and discard.
ISO 4310:1981, Cranes — Test code and procedures.
ISO 4347:1992, Leaf chains, clevises and sheaves.
ISO 4413:— 2) , Hydraulic fluid power— General rules for the application of equipment to transmission and control systems.
ISO 4414:— 3) , Hydraulic fluid power — Recommendations for the application of equipment to transmission and control systems.
ISO 4779:1986, Forged steel lifting hooks with point and eye for use with steel chains of grade M(4).
ISO 6336‑1:1996, Calculation of load capacity of spur and helical gears — Part 1: Basic principles,
introduction and general influence factors.
ISO 6336‑2:1996, Calculation of load capacity of spur and helical gears — Part 2: Calculation of surface durability (pitting).
ISO 6336‑3:1996, Calculation of load capacity of spur and helical gears — Part 3: Calculation of tooth
bending strength.
ISO 6336‑5:1996, Calculation of load capacity of spur and helical gears — Part 5: Strength and quality
of materials.
ISO 7752‑1:1983, Lifting appliances — Controls — Layout and characteristics — Part 1: General principles.
ISO 7597:1987, Forged steel lifting hooks with point and eye for use with steel chains of grade T(8).
ISO 10300‑1:— 4) , Calculation of load capacity of bevel gears — Part 1: Introduction and general
influencing factors.
ISO 11660‑1:— 5) , Cranes—Access, guards and restraints — Part 1: General.
4 General
4.1 Design criteria
4.1.1 General design and layout
General design and layout of a crane mechanism shall take into consideration:
— requirements of the user;
— specific function of the mechanism and its use;
— reliability of the mechanism, considering the consequences of failure;
— displacement of the structure supporting the mechanism;
— avoidance of uncontrolled motions considering the limits of transmission of force or moments, when provided for example by motors, clutches, brakes;
— avoidance of undesirable or excessive vibrations;
— avoidance of excessive noise emissions;
— ease of use and controls of the mechanism with adequate space and motion limiters and indicators;
— recommendations of the component supplier for the selection and installations of component parts;
— serviceability, i.e. easy accessibility for maintenance of components (see ISO 11660‑1);
— interchangeability of components;
— availability of lifting lugs or lifting points for handling;
— access for operator or maintenance personnel, see ISO 11660‑1;
— environmental conditions and hazards.
AS 5227.1:2021 pdf Cranes — Requirements for mechanisms
