LIFT & ESKALATOR KK-T-043 Lift & Escalator (KK-T-043), CIDB Malaysia Dikendalikan oleh MNA Management & Implementation (M) Sdn. Bhd.
Hydraulic & Traction 2
3 Conveying systems include systems to automatically transport people and/or materials between areas of a building.
4 While passenger elevators are the most common type of elevator, other types of elevators are specifically designed for other functions.
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Maximum travel of 21 m; speed up to 0.75 m/s Advantages: Capacity for very heavy loads Accuracy in floor leveling Smooth ride characteristics Low-level plant room No structural loads from winding gear Pump room can be located up to 10 m from the shaft 9
Hydraulic lift Jack arrangements • Direct-acting • Single side-acting: direct or indirect • Twin side-acting: direct or indirect Power units • Tank or oil reservoir • Pump & Pump motor (e.g. single-speed AC induction type) • Flow control valve block
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15 Holeless Hydraulic Holed Hydraulic Roped Hydraulic
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17 Hydraulic elevators are raised and lowered by pistons filled with fluid.
18 Guide Rails Plunger & Cylinder Controller & Pumping Unit To & From Oil Pipe Hoistway Door Door Operator
Rise Limitations: ~ 18 meter Speeds: 30/38/45 meter/min Advantages: low cost no penthouse no structural load on building Disadvantages slow energy inefficient 19
20 Holeless elevators reconfigure the hydraulic pistons to the side of the elevator, reducing the amount of equipment space needed directly beneath the elevator shaft.
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Rise Limitations: 6 meter Speeds: 30/38 meter/min Advantages: no well hole minimizes environmental contamination Disadvantages: limited travel 22
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Rise Limitations: 18 meter Speeds: 30/38/45 meter/min Advantages: o Eliminates well hole o Same 60’ travel range as “holed” hydro o Existing Building Disadvantages o More costly than conventional holed hydraulic 24
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Traction elevators are the most common type of elevators. Elevator cars are pulled up by means of rolling steel ropes over a deeply grooved pulley, commonly called a sheave in the industry. The weight of the car is balanced by a counterweight since 1900. 27
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29 Machine Governor Controller Guide Rails Counterweight Buffers Car Frame & Safety Hoistway Door Door Operator
Motor (AC or DC; gear/gearless) Roping Emergency brake Lift doors Constructional dimensions Machine room position Controller cabinet Pit Shaft 30
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33 Most of the equipment needed to operate a traction elevator is located in a machine room above the elevator shaft.
34 Traction elevators are raised and lowered through the elevator shaft by cables operated by electric motors.
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37 Machine room-less elevators use a design that reduces the size of the traction equipment enough so that it does not require a machine room.
38 Geared Gearless
Gear Single-speed or two-speed AC motor Variable voltage AC motor VVVF (variable voltage, variable frequency) AC motor Variable voltage DC motor Gearless Variable voltage DC motor VVVF (variable voltage, variable frequency) AC motor Linear induction drive
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Gearless
Typical gearless machine
Building Height elevator type Customer Expectations Service Time Speed, capacity, quantity Space Limitations Optional approaches sky lobbies double deck 49
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