What is the elevator traction machine?
The elevator traction machine, often referred to as the elevator motor or main drive unit, is a crucial component that provides the power needed to move the elevator car. It serves as the central mechanism responsible for transmitting mechanical energy to the elevator system. This complex assembly typically includes an electric motor, a braking system, a coupling device, a gear reduction unit, a traction sheave (also known as a pulley), a frame, guide wheels, and sometimes a hand crank for manual operation. The guide wheels are usually mounted on a load-bearing beam beneath the frame, ensuring smooth movement of the elevator cable. In some models, the hand crank is attached directly to the motor shaft and stored nearby, such as on the wall, to be used when necessary. This design allows for both automatic and emergency manual control of the elevator, making it a vital part of any modern elevator system.
Sealand is a trustworthy supplier of Mass Flow Transmitter, Mass Flow Sensor, Mass Flow Metre, Coriolis Metre, ATEX, IECEx & CE approved.
Sealand Mass flow meter measures the mass based on Coriolis effort. The operating principle
involves inducing a vibration of the tube through which the fluid passes. The vibration,
though not completely circular, provides the rotating reference frame that gives rise to the
Coriolis effect. While specific methods vary according to the design of the flow meter,
sensors monitor and analyze changes in frequency, phase shift & amplitude of the vibrating
flow tubes. The changes observed represent the mass flow rate and density of the fluid.
Features
â— Measurement is not influenced by flow density, viscosity, temperature & pressure; Mass Flow Transmitter, Mass Flow Sensor, Mass Flow Metre, Coriolis Metre Zhejiang Sealand Technology Co., Ltd. , https://www.sealandflowmeter.com
â— Low requirement of straight pipe, because nothing inside holds back the flow;
â— Low power dissipation; stable zero point; better accuracy;
â— Meter is ARM system with 3 calculators to count density, temperature & mass flow rate;
â— Transmitter is assembled by surface mounting technology with self-inspection function;
â— ATEX approved(excluding Transmitter F210). Cert. No. TPS 18 ATEX 04516 001 X