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21AR013 FARHAN ULLAH LIFT PRESENTATION

lift and escalator

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21AR013 FARHAN ULLAH LIFT PRESENTATION

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  1. LIFT Submitted by : FARHAN ULLAH 21-AR-013 (Transportation system in buildings)

  2. Content Introduction to lifts Basic terminologies Interview Componenets Types of lift

  3. What is a Lift ? The lift is a type of vertical transport equipment that efficiently moves people or goods between floors (levels, decks) of a building, vessel or other structure. generally powered by electric motors that either drive cables, hoist, or pump hydraulic fluid to raise a cylindrical piston like a jack.

  4. Basic terminologies.. • Machine room : This usually located at the top of the shaft and accommodates the winding machine, etc. • Pit : That part of an elevator shaft that extends from the threshold level of the lowest landing door down to the floor at the very bottom of the shaft. • Traction drive : Lift whose lifting ropes are driven by friction in the grooves of the driving sheave of the machine.

  5. INTERVIEW MAIN SPECIFICATION OF PASSANGER LIFT COMPANY – UNIVERSAL LIFT OPERATOR CAPACITY – 630KG PASSANGER– (8) PERSONS. SHAFT DIMENSION– WIDTH 1800mm X DEPTH 1800mm. NORMAL SPEED – 1.0 m/s LANDING – B+G+1,2,3,4,5,6 (8 FLOOR / STOP) VOLTAGE– 400V, 50Hz Basic Requirements • Electrical panels and power outlets. • Ventilation fan and lighting in engine room. • Power sockets in the lift pit. • Maintenance works.

  6. INTERVIEW MAIN SPECIFICATION OF PASSANGER LIFT CABIN METALLIC CABIN LIGHTING EMERGENCY LIGHT ALARAM BELL HAND RAIL BLOWER FAN FLOORIN

  7. INTERVIEW MAIN SPECIFICATION OF PASSANGER LIFT SAFETIES PHASE FAILURE AND PHASE REVERSAL PROTECTION OVER SPEED FOR UP AND DOWN PROTECTION TERMINAL LIMIT SWITCH SAFETY AND DOOR LOCK CIRCUIT PROTECTION OVER LOADED PRTECTION DOOR SAFETY EDGE PROTECTION SYSTEM FLOOE DISPLAY MOTOR BLOCK PROTECTION

  8. It consists mainly of 5 components, • Sheave rotates with the help of motor. • a pulley with a grooves around the circumference. • grips the hoist ropes, so when you rotate the sheave, the ropes move too. • Connected to the motor hangs on the other side of the sheave. it weighs about the same as the car filled to 40-percent capacity. Connected with the ropes • Are along the sides of the elevator shaft. • keep the car and counterweight from swaying back and forth. • also work with the safety system to stop the car in an emergency.

  9. Requirements for machine room : • adequately ventilated. • shall be such that the equipments are protected as far as possible from dust and humidity. • Temperature 5 deg C – 40 deg C • walls, ceiling, floor should be finished in tiles or painted as a min to stop dust circulation. • The entrance door shall have sufficient opening to allow for in & out of machines. • shall not be any common wall/slab between machine room and water tank. • shall not be used as a store room or for any purpose other than housing the machinery connected with the lift installation. • shall not act as a passage to any other room or utility.

  10. Types of Lifts

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