Gantry crane cable reel torque motor working principle and scope of application

a. Works
From the mechanical torque motor characteristic curve can be seen as a variable torque motor torque output.Steel crane Output at low speed high torque; high speed low torque output, this feature is very fit cable reel mechanical performance requirements.
Equipment towards the ground cable anchor position, torque motor power work, amplified by the gear drive torque after winding cable reel rotation. As the winding diameter increases,
Torque motor automatically reduce speed and increase the output torque, thus ensuring the closing of the cable line running speed synchronous speed and carts, and keep the cable tension constant closing.
Equipment leaving the ground cable anchor position, the torque of the motor EMF constant direction, running carts trailing cable, so that the torque generated is greater than the motor forward reverse torque,hoist gantry crane synchronous release cable.
b. Control and characteristics
Power switch motor stall characteristics of a long-term, relatively independent of the control system with the carts, just from the device main power switch (or the total contacts) leads to the power supply. Electrical control simple and reliable.
Large electric car after the reel motor powered reel work, regardless of the cart forward, reverse or stop, torque motor is energized and the phase sequence is always the same; carts power,hoist crane the motor off, reel brake .
c, scope
Applicable cable: cross-sectional area from 10 ~ 185mm cable;
Winding length: 800 meters;
Suitable equipment: gantry cranes, bridge, gantry cranes, blocking reclaimer, dam gantry crane, bridge crane, yard cranes, loading and unloading ship machine, metallurgical machinery, hydraulic machinery and mining machinery and other large rail line equipment.