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ELEVATORS
AlGhurairUniversity,Dubai
Done by:
Azra Maliha
Sara Hashim
Contents
 Introduction
 Parts of an elevator
Elevator car/carriage
Elevator doors and door operators
 Elevator shaft ...
Introduction
Elevators or lifts are a kind of conveyor/transportation system in a building that
moves people and goods bet...
The elevator car
• This is the carriage or cart that carries people and goods between floors.
They can be basically 3 type...
Elevator dimensions
Elevator’s dimensions are according to what it
is used for whether it is for commercial use or
hospit...
Standard sizes of elevator cars
• Car floor: car floors should be very strong and have
enough mechanical strength to support normal
elevator operation of ...
The elevator doors and door operators
• Elevator doors are generally operated using power unit system connected to the top...
Manual doors
Automatic doors
Different types of door operators
Door protecting device
Elevator shaft and
installation
 A shaft is made to allow a hallway or a passage
of an elevator from floor to floor. Its ...
There are steps on installing an elevator
No. 1: get the Elevator “order
No. 2: Site preparation “pour the pit
No. 3: h...
Mechanism
 Traction elevators
“machine elevators”
 Instead of the elevator
being pushed from
below it is lowered and
rai...
Control systems
• Every building must have a central elevator control unit which controls the
elevators. Automatic control...
Safety systems
 It Is necessary for all elevators to have a fully equipped safety
system, these are some of the safety sy...
Lighting
References
• https://en.wikipedia.org/wiki/Elevator
• http://www.electrical-knowhow.com/2012/04/basic-elevator-components-...
Elevator system
Elevator system
Elevator system
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Elevator system

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Elevator system

  1. 1. ELEVATORS AlGhurairUniversity,Dubai Done by: Azra Maliha Sara Hashim
  2. 2. Contents  Introduction  Parts of an elevator Elevator car/carriage Elevator doors and door operators  Elevator shaft and installation  Mechanism  Safety systems  Control systems  Lighting  References
  3. 3. Introduction Elevators or lifts are a kind of conveyor/transportation system in a building that moves people and goods between the floors. The systems are generally powered by electricity. Elevators have enabled modernization, as before the use of this system buildings were limited to 7th floor only. Parts of an elevator An elevator has the following basic components:  Car – it is the carriage or container that is fixated over a platform and transports people or goods  Hoist way- the elevator shaft  Machine system  Control system  Safety system
  4. 4. The elevator car • This is the carriage or cart that carries people and goods between floors. They can be basically 3 types in a standard elevator system depending on the number of entrances they have; Normal cabin (1 entrance), Open Through cabin (2 doors parallel to each other) and Diagonal cabin (2 doors adjacent to each other). • The elevator car is designed by calculation the size and load of it according to which building it is in and number of floors. This is done to prevent over loading. • The car area is kept limited related to the rated loading value of the elevator per building. • Elevator car has many components such as  Cabin  Car sling  Door and door operator  Guide shoes  Door protective device Number of passengers = rated load ÷ 75, where 75 is average person’s weight in KG
  5. 5. Elevator dimensions Elevator’s dimensions are according to what it is used for whether it is for commercial use or hospitality use, but the smallest minimum accepted elevator is 203 centimeters and the depth of the elevator car should be measured from the wall of the elevator, and the elevator door is at least 137 cm
  6. 6. Standard sizes of elevator cars
  7. 7. • Car floor: car floors should be very strong and have enough mechanical strength to support normal elevator operation of carrying weights, safety gear operations and also should be durable during any emergency vibrations. The floor is recessed and can be covered by PVC, marble, granite or as the client prefers. • Car ceiling: the ceiling is designed to support minimum two people’s weight during any maintenance works above. It also comes with emergency trap door, fan and handrail. • Car walls: there can be different types of walls which all comes as panels, such as, Side panels, Back panels or COP(car operating panels) panels.
  8. 8. The elevator doors and door operators • Elevator doors are generally operated using power unit system connected to the top mechanism of the elevator car.The door can be opened, manually or automatically, only when the elevator car is level with the particular floor. • The power unit contacts both the elevator door and the hoist way door (door of the building shaft opening) and they open at the same time. • The are mainly 2 types of elevator doors, manual which are opened by passengers manually and automatic which open by itself according to the floors. • Other than that there are type based on how the doors open:  Single side opening doors  Center opening doors. • Guide shoes and door protectors are two important elevator car door component we should know about. Guide shoes are devices which guide the car move smoothly along the guide rail and move at a lateral motion. Door protectors are used for automatic door types because any obstructions might disrupt the operation. Infrared sensor, photoelectric ray, electrostatic field, etc. are door protective devices.
  9. 9. Manual doors Automatic doors
  10. 10. Different types of door operators Door protecting device
  11. 11. Elevator shaft and installation  A shaft is made to allow a hallway or a passage of an elevator from floor to floor. Its also called Hoist way.  A shaft should have the following features  Drainage system  Plump  Water tightness  A painted finishing  Lighting inspection  Ventilation void for smoke
  12. 12. There are steps on installing an elevator No. 1: get the Elevator “order No. 2: Site preparation “pour the pit No. 3: have the Door Penetrations made No. 4: Site Prep – have a machine room made No. 5: Schedule the Crane No. 6: Mount Electricity No. 7: mount Fire Safety No. 8: Complete Interior and Exterior Building Connections no 9: Final results
  13. 13. Mechanism  Traction elevators “machine elevators”  Instead of the elevator being pushed from below it is lowered and raised by steel made ropes  The ropes are attached to the elevators, looped around and it is connected to the electric motor
  14. 14. Control systems • Every building must have a central elevator control unit which controls the elevators. Automatic control systems are now a days more prominent than manual ones. • There are various types of control systems, such as relay controlled and microprocessor controlled for Automatic systems and preregister operation and signal operation for Manual systems.
  15. 15. Safety systems  It Is necessary for all elevators to have a fully equipped safety system, these are some of the safety system that is used in most elevators  Electromagnetic brakes  A speed monitoring device  A braking system  Emergency alarm  And a shock absorber system  Intercom  Overload sensor “If too many people are in the elevator”  There is also a sensor if there is an object that is close to the elevator door while closing just in case something gets stuck in an elevator such as a cloth or a hand bag.
  16. 16. Lighting
  17. 17. References • https://en.wikipedia.org/wiki/Elevator • http://www.electrical-knowhow.com/2012/04/basic-elevator-components-part-one.html • https://www.columbiaelevator.com/clientuploads/pdf/CE-Elevator-Door-Operators.pdf • http://www.phoenixmodularelevator.com/elevator-installation-build/ • http://elevation.wikia.com/wiki/Elevator_control_system

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