Word Count : 1134

---

An escalator is a power-driven, continuously moving staircase designed to transport people between different levels of a building. It is widely used in commercial complexes, shopping malls, airports, railway stations, metro stations, hotels, hospitals and other public buildings where there is a need to move a large number of people efficiently and safely. Unlike lifts, which carry passengers in batches and require waiting time, escalators provide continuous movement and are particularly suitable for high-traffic areas. In building planning and maintenance, escalators form an important component of vertical transportation systems and must be carefully designed, installed and maintained to ensure safety, reliability and smooth operation. Structurally, an escalator consists of a series of steps connected to form a continuous loop. These steps move on tracks within a truss framework that bridges the upper and lower floors. The main components of an escalator include the truss, steps, step chain, drive motor, gearbox, sprockets, tracks, handrails, balustrades, comb plates and control system. The truss is a rigid steel structure that supports all the mechanical components. It is anchored at both ends to the building structure and must be designed to carry dynamic loads caused by passenger movement. The working of an escalator is based on an electric motor-driven mechanism. When the escalator is switched on, the electric motor transmits power to a drive shaft through a gearbox. The gearbox __________ ___ _____ _______ _______ ______ _____.
____ ______ __________ ____ ________ _______ _________.
____ _________ _________ _______ _________ ______ _____ __________ __________ _________ ______ _______.
_____ ___ _________ _______ _____ ____ _____ ___ ______ _______ ______ ____.
_____ _________ ___ ________ _____ _______ __________ ________ ____ _______.
________ ______ __________ _________ _________ ___ __________ ____ ________ ________ _____.
_________ _____ _____ __________ ______ _________ _____ ________ _____ ___.
__________ ___ _______ _____ _______ ________ _________.
________ ________ _____ _______ ___ ____ _________ __________ ________.
_______ _____ ______ _____ _________ ____ _________ _______ ____ ________.
___ ______ _________ _____ _____.
______ _________ ___ __________ _____ ________ _______ ____ ________.
_________ _____ ________ _____ _____ __________ _____.
_______ ___ _____ _________ ______ _______ ___.
___ ______ _______ _____ __________ ________ __________ _____ _____.
_____ _________ _____ _________ _________ ______ __________.
___ ____ ______ ___ ______ __________ ____ _________.
__________ _________ ______ ____ ________ _______ ______ ____ _____ ________ _____ ________.
_______ _____ ___ __________ _________ ___ ______ _______ _______.
_________ _______ ________ ____ ___ _____ ________ _________ __________ _________ ____.
__________ ________ ____ __________ _______ ___ ___ _________ ___.
_________ _________ ___ _______ _____.
_________ ______ ____ __________ ____ ___ ____ __________.
_________ ______ __________ _______ _______.
____ _________ __________ ______ _________ __________ ___ ______ __________.
_____ _______ ___ ______ ___ ______ _________.
__________ ____ ____ __________ ________ ________ _______ ____ __________ ____.
___ ________ _____ _______ ____ ____ ________ _________ _________.
_______ ___ _________ ___ _________ ________ ________ ____ _____ ______.
___ _____ _______ ____ ___ ___ _______.
______ _________ _______ ______ _________ __________.
___ _____ ___ ______ __________ ____ ___.
___ _________ ___ _______ ___ _____ ______.
_______ __________ _______ _______ ____.
_______ ___ ____ __________ _________ ___ ________ ______ ___ ___ _______.
_________ _______ _________ ____ ________ _______ ____ ____ ___ ______ ______.
________ ________ ___ _____ _________.
_______ ________ _______ ______ ______ __________ _____.
___ ___ _________ _____ _________ __________ _______ _________ _________ ________.
___ __________ __________ ___ ____.
________ __________ _____ ___ _________ ________ ____ _____ ___ ___ _____.
______ ______ ____ _______ ____ ______ _________ ______ _________ __________.
_________ ______ ___ ___ _______ __________ _____ ________ ___ _________ ________.
___ _______ ________ ____ _________ ____.
_________ _______ ___ ______ ____ ______ ___ _______.
______ ______ ______ ______ _____ ______ ________ _______ ______ ______.
__________ _________ _____ ____ _______ ____ ____ _____ _____ _________ __________ _____.
_____ _____ ______ ___ ________.
__________ __________ _______ ____ ____ ____.
______ ____ ____ ____ _________ ____ ______ ___ ________ ___ __________.
__________ ____ _________ ___ _______.
__________ ______ _______ __________ ____ ______ _______.
______ ________ ___ ___ _______ ____ _____ _____ __________ ________ _________ _________.
____ ______ _________ _______ __________ ___ ________ ________ __________ _____ ___.
___ ___ __________ ____ ________ ______ ______ __________ _______ _______ ____.
____ ________ __________ _____ _________ ______ ________.
________ _____ ___ _____ ___ _______ _______.
__________ ______ _____ _____ ___ _____ __________ _______ _________.
__________ ________ ________ _______ _______.
_________ ______ _________ _____ ________ ________ _____ ____ ________ _______.
____ ___ _________ ___ _____ ____ _________ _______ _________ _____.
___ ______ _________ ________ ________.
___ ___ ___ ______ ________ __________.
_________ _________ ________ _______ _______ ____.
______ __________ _____ ___ __________ ___.
__________ ______ ______ ____ __________ ____ ______ ______ ____ ___ ____.
________ ____ ________ ____ ______ __________ ___.
____ ____ ________ ________ _____ ___ __________ ___ _________ ____.
___ ______ _______ ________ __________ _______ ___ ____.
_____ __________ ________ ___ _______.
_________ ______ _______ _______ _________.
___ ___ ________ ____ __________ _______ ______ _____ ___ _______ _______.
_____ ________ ________ ___ ____ ______ _______ _______ _________ _____ ________.
____ _______ _______ _______ _________ ___ _______.
____ ______ ____ __________ __________ _____ ___.
__________ ____ ____ ____ ____ __________ ______.
___ __________ ____ _______ ___ _______ _______ _________ _______ _____.
____ ____ __________ _______ _____ ________ ___ _________ ________ _________ _________ ______.
________ ________ _______ ____ _________ ______ _____ ____ ______.
_____ ______ ___ ___ _______ __________ ______ _______.
____ ______ ___ _____ ______ _______.
_______ ______ __________ _____ __________ ___ ____ _________ _________ ______ _____.
______ _____ _________ ______ ________ ________ __________.
___ ______ _______ _________ ____ ___ _______ _____ _____ _________ ________.
______ _________ ________ ______ _________ ______ _______ ______ __________ ____ ______ _________.
________ ___ ____ ______ __________ ________ _______ _________ _____ _________ _____.
________ _____ _________ ____ __________ ___ _____ _________ ______ ____ ________ ____.
_______ ___ _______ ________ _____ ___ _____ ____ ________ _______.
___ ____ _______ __________ ___ _____ _______ __________ __________ ______ _______.
______ __________ ______ ____ ________ _______ _________ ______.
___ ________ ________ ______ ___ _____ __________ ___ ______ __________.
__________ ___ _________ _____ _________.
______ ______ _______ _________ _____ ________.
___ ______ _______ ____ ______ __________ ______.
_________ ____ ___ ________ __________ ___ ________ _____ __________ _____.
______ ___ ____ ______ _______ ________ ________ _______.
_______ ______ _____ ________ _________ __________.
________ ____ ____ _____ ___ _______ ________.
________ ___ ______ ___ __________ ____ _________ ___ ______.
____ __________ ___ _________ _____ __________ __________ _______.
___ _______ _________ _________ _______ ______ _____ ____.
__________ ________ ____ __________ __________.
_____ _________ __________ _______ ____ ______ _____ __________ _____ ___ _____ ________.
_______ ___ _________ _________ _________ _____ _____.
______ _________ _____ _________ _________.
_________ __________ _____ _________ ________ ______ _______ _______ ______ ______ _____ _________.
____ _____ _____ ____ ________ ___ _____.
_______ __________ _____ ______ _________ _______ _______ ________ ___ ________.
Get Full Answer on WhatsApp