BS ISO 15645:2018 pdf download

BS ISO 15645:2018 pdf download.Road construction and maintenance equipment — Road milling machinery — Terminology and commercial specifications
1 Scope
This document establishes the terminology, functions, types and characteristics of road milling machinery.
It is applicable to the planing of pavements made of concrete, asphalt and similar materials with a view to removing them.
2 Normative references
There are no normative references in this document.
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
ISO and IEC maintain terminological databases for use in standardization at the following addresses:
— ISO Online browsing platform: available at https://www.iso.org/obp
— IEC Electropedia: available at http://www.electropedia.org/
3.1 road milling machinery
mobile road construction machine used to remove materials from paved surfaces by a milling action
3.2 road milling carrier
machine carrying all the systems constituting the road milling machine and distributing the necessary power to operate the different devices and to ensure movement during work and transfer
3.3 cutting and milling system
power-driven cylindrical bodies on which the milling tools are fitted
Note 1 to entry: The cylindrical bodies rotate during the milling operation. The tools are mostly cooled by a water sprinkler device.
3.4 levelling system
automatic or manual system used to obtain and maintain the geometry of the bottom of the cut
Note 1 to entry: The geometry of the bottom refers to both the longitudinal and cross-sections. The geometrical reference is taken from the existing section or from a specific layout.
3.5 system to remove or windrow aggregate material
transport system for the removal and storage of loose material
Note 1 to entry: The material is removed by either a front-, rear- or side-loading system, or is deposited as a windrow at the side or the back of the road milling machine.
3.6 operating mass
mass of the base machine with all standard equipment, with or without the cab, with or without ROPS,etc., with the operator (75 kg) and full fuel tank, and all fluid systems at their rated capacities and,when applicable, with the sprinkler water tank half full
4 Description of milling machine components
4.1 General
The machine is usually equipped with all the following devices:
— a traction and transport system;
— a cutting and milling system;
— a levelling system;
— a system to remove or windrow aggregate material.
4.2 Design of milling machine types
4.2.1 Traction and transport system
The description shall include the type of the ground drive system (wheels, tracks, etc.), the total number and position of wheels or tracks, the number and position of drive wheels or tracks, and the number and position of guiding wheels or tracks. The position of the rotor in relation to the wheels or tracks and the loading device is shown in Figure A.1.
4.2.2 Cutting and milling system
The cutting and milling system comprises a rotor chamber and a drum sprinkler device (see Figure A.3).
4.2.3 Rotor drive methods
These may be
— hydraulic,
— hydromechanical, or
— mechanical (right and/or left),
or may depend on the direction of rotation of the rotor in relation to the direction of movement.