Tower crane and tower crane manufacturers have complete direct sales models

Tower crane is the most commonly used lifting equipment on construction site Also known as & ldquo; Tower crane;, Lengthen (height) section by section (referred to as & ldquo; standard section & rdquo;), It is used to lift construction raw materials such as steel bars, wooden beams, concrete and steel pipes
Tower crane is an essential equipment on the construction site

The function of the tower crane tip is to bear the upper load transmitted by the jib pull rope and the balance arm pull rope, and directly transmit it to the tower structure through the rotary tower, turntable, bearing seat and other structural components
There are tower type, inclined tower type and inclined tower type
All upper turret cranes shall be equipped with balance weight, whose function is to support the balance weight to form the balance torque required in the design, which is opposite to the lifting torque direction
In addition to the counterweight, a lifting mechanism is often installed at its tail
The reason why the lifting mechanism is placed at the tail end of the balance arm together with the balance weight is that, on the one hand, it can play the role of part of the counterweight, and on the other hand, it can increase the distance between the rope drum and the tower tip guide wheel, so as to facilitate the winding of the steel wire rope and avoid rope disorder
The amount of balance weight is inversely proportional to the length of the balance arm, and there is a certain proportional relationship between the length of the balance arm and the length of the jib
The balance weight is considerable
Generally, the light tower crane should be at least 3 ~ 4T and the heavy one should be nearly 30t

Adhere to & quot; X & quot; No lifting
After the operation is completed, the electric lock box shall be cut off and the mechanical & quot; Cross & quot; Homework
10
The contents of no lifting are as follows:
(1)
inclined hoisting
(2)
overload without lifting
(3) Do not lift if the bulk materials are too full or not tied firmly
(4)
do not lift the object without protective measures at the edge
(5)
people standing on the hoisted object shall not be hoisted
(6)
do not lift if the command signal is unknown
(7)
components buried underground shall not be hoisted
(8) Do not lift if the safety device fails
(9)
if the light is dark and the hanging object cannot be seen clearly, do not lift it
(10) No hoisting in strong wind above level 6