The tower crane comprises a tower arm and a tower body which are connected with each other, the tower arm comprises a balance arm and a cargo boom, and the tower crane further comprises a damper, a movable counter weight and a dismountable counter weight. By means of the first coaxial shaft and the second coaxial shaft arranged between the tower arm and the tower body, when the tower arm suddenly loses load, the cargo boom rotates upwards and pulls the supporting piece, so that the falling-off counter weight falls off from the end of the balance arm; and when the tower arm has a load overrun condition, the cargo boom rotates downwards, and the tower body is not subjected to the overrun bending moment, so that the tower crane overturning accident is avoided. By adjusting the position of the movable balance weight, the tower crane can be used as a common tower crane during light-load hoisting operation, safety and high efficiency are achieved, intrinsic safety is achieved, and the loading capacity of the tower crane is greatly improved.
一种塔吊,包括相互连接的塔臂和塔身,所述塔臂包括平衡臂和起重臂,还包括阻尼器、可移动配重以及可脱落配重。通过塔臂和塔身之间设有的第一共轴和第二共轴,使得塔臂在突然失载时,起重臂上旋抽动支撑件使得可脱落配重从平衡臂端部脱落;当塔臂出现载荷超限状况时,起重臂下旋,塔身不受超限弯矩,从而保证不发生塔吊倾覆事故。通过调整可移动配重的位置,使得塔吊在轻载吊装作业时作为普通塔吊使用,安全高效,做到本质安全,且大幅提高塔吊的载荷能力。
Tower crane
一种塔吊
03.02.2023
Patent
Elektronische Ressource
Chinesisch
IPC: | B66C Krane , CRANES |
Tower crane foundation, tower crane and mounting method of tower crane
Europäisches Patentamt | 2024
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