Hoist Motor Magnetic For Tower Crane

Products Specification

Hoist Motor Magnetic For Tower Crane

Hoist Motor fixed Magnetic 51.5kw motor

Hoist Motor fixed Magnetic 40.5kw motor

Hoist Motor Magnetic For Tower Crane

Hoist Motor fixed Magnetic 51.5kw motor

Hoist Motor fixed Magnetic 40.5kw motor

Tower Crane Knowledge sharing：

What are the safety devices for the tower hoist? Analysis of the role of safety devices
Hook Insurance Device:
The main prevention is when the tower is hanging, the weight drop is hindered by the hook still falling and the cable delink accident caused. This device is equipped with a spring pressure cover at the hook opening. The pressure cover can not be opened upwards but can only be pressed downwards to prevent the rigging from being removed from the opening.
Roller safety device:
It mainly prevents the failure of the transmission mechanism, causing the wire rope not to be arranged in a row on the reel, so that the flange at the end of the reel is crossed and an accident such as biting rope occurs.
Climb the ladder guard:
(1) When the height of the ladder is greater than 5M, the guard ring is set from 2M above the platform. The guard ring should be kept intact, and there should be no excessive deformation and few circles, welding and other phenomena.
(2) When the ladder is set inside the structure, if the distance between the ladder and the structure is less than 1.2 M, no guard rings may be provided.

Hoist Motor Magnetic For Tower Crane

Hoist Motor fixed Magnetic 51.5kw motor

Hoist Motor fixed Magnetic 40.5kw motor

What is a limiter? An Analysis of the Function of Installation of Limitator for Tower Hang
What is a limiter? Analysis of the function of the tower crane mounting limiter. According to the role of the tower crane limiter, it can be: over the limiter, variable amplitude limiter, walking limiter, below,there will be based on the characteristics of each limiter, one by one overview.
Over limiter:
Also known as the upgrade limit position limiter, that is, when the tower crane hook rises to the limit position, the rising power supply of the lifting mechanism is automatically cut off. The mechanism can be used for descending movement, and action test verification should be done during security inspection.
Variable limiter:
Including the variable amplitude of the car and the variable amplitude of the moving arm. Test verification should be done during security inspection.
(1) Variation of the car. The tower crane adopts a horizontal arm frame and hangs heavily on a crane, depending on the horizontal movement of the car on the arm frame to achieve variation. The variable amplitude limiter of the car is to use two stroke switches and buffers installed on the head and root of the lifting arm to limit the running position of the car.

Hoist Motor Magnetic For Tower Crane

Hoist Motor fixed Magnetic 51.5kw motor

Hoist Motor fixed Magnetic 40.5kw motor

(2) Dynamic arm variation. The operating radius(amplitude) of the tower crane transformation is realized by changing the elevation angle of the lifting arm. The light signal is transmitted to the instruction plate of the driver's cab through the change of the contact point of the device.

It also indicates the number of elevation angles. When the elevation angles of the control arm are respectively at the upper and lower limit levels, the lower limit switches are respectively pressed to cut off the power supply to prevent the tower from instability caused by exceeding the elevation angle.
When doing action verification on the spot, experienced personnel should be the supervision and command to prevent accidents.
Walking limiter:
There is no derailment accident during the control operation of the rail tower crane. During the security check, the walking action test of the tower crane should be carried out, and the reliability of the collision limiter should be verified.

Hoist Motor Magnetic For Tower Crane

Hoist Motor fixed Magnetic 51.5kw motor

Hoist Motor fixed Magnetic 40.5kw motor