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Football Stadium Mechanisms - Coggle Diagram
Football Stadium Mechanisms
RETRACTABLE ROOFS
Made with Different Mechanisms
Cable Drives
Steel cables moved using special winches. The roof panels are attached to the winches.
Wheel Drives
Uses motorised wheels to slide the roof along rails, causing friction
Chain Drives/Rack Gears
Uses a motorised rack and pinion which moves along a chain or toothed racks to open and close the roof
A rack and pinion converts rotary motion into linear
TOTTENHAM STADIUM
Retractable Pitch
10,000 Tonnes of football pitch is broken up into 3 pieces and rolled along 100m rails
204 Electric Motors
Used to give power to the mechanisms
32 Hydraulic Jacks
Uses hydraulics to lift up the pitch surround
168 Steel Wheels
Rolls the pitch into the stadium with gear like wheels
https://youtu.be/JmeljNpIV1k
ENTRANCE AND EXIT
Turnstiles
Ratchet and Pawl
Turns one direction but can't go the other
Automatic Doors
Gear Motorised Belt and Pulley
Opens when the sensor receives an activation signal and activates the gear motor to drive the belt and pulley
