Monorail Switch System

Overview:

The rail industry is one of the areas of MAPNA Group’s activity and bears great importance due to the macro policies of Iran for expanding rail network and fleet and also because of its infrastructural role. Qom monorail project is the first monorail plan in the country that was implemented with the aim of developing a modern urban transportation system. Sepahan MAPNA Engineering & Equipment Manufacturing Company designed two types of modular monorail switches for the project for the first time in the West Asian region.

Monorail way switch
Monorail transfer switch

Track changing in monorails is done through moving bridges called monorail switches. Several mechanisms have so far been developed for that purpose and the segmental method is among the newest and most efficient ones. The modular switch enjoys a unique technology; the force needed to move the set of beams is powered by a drive system consisting of an engine and several gearboxes. The switch is fixed in place in a straight or curved position by means of a locking mechanism.

Technical Characteristics:

Main components of monorail switch include:

Mission	Subsets	Components
Resisting against forces resulting from train’s passage	Beams	Structure
Moving the structure	Engine and gearboxes	Propulsion System
Stabilizing structure’s position	Structure and operator	Lock System
Coordination with control center Monitoring and controlling switching operation	Sensors, controller, and operators	Control System

Main specifications for designing monorail switch include:

Amount	Parameter
800 (200 for each car)	Train’s passenger capacity (4 cars)
50 tons	Maximum weight of each car
85km/h	Maximum speed of train
30 years	Useful life of Switch
More than 60 million cycles	Number of structure’s loading cycles

Way switch

Amount/Desciption	Technical characteristic/title
Converting one line to two lines	Mission
75 seconds	Average intervals between two trains
15km/h	Maximum speed of train while passing the switch on curved position
22m	Length of equipment on place of installation
22.4m	Displacement of the free part of switch
15 seconds	Time for each displacement operation
50 tons	Weight

Transfer switch with escape track

Amount/Desciption	Technical characteristic/title
changing track between two lines	Mission
75 seconds	Average intervals between two trains
15km/h	Maximum speed of train while passing the switch on curved position
45m	Length of equipment on place of installation
3.7m	Displacement of the free part of switch
15 seconds	Time for each displacement operation
50 tons	Weight

Past projects :

MONORAIL TRACK SWITCHING SYSTEMS	year
QOM	92-95

Monorail Track Switching System	Year
Qom	2013-2016