The invention discloses a suspension arm bracket of a tower crane and the tower crane, and belongs to the technical field of cranes. The suspension arm support comprises a suspension arm supporting frame and a driving positioner, a variable-amplitude trolley is mounted on the suspension arm supporting frame, the suspension arm supporting frame is provided with a first bottom frame, and a row of positioning blind holes are formed in the inner surface of one side frame of the first bottom frame; the variable-amplitude trolley is in sliding fit with the first bottom frame, the first bottom frame is provided with a carriage, an upper plate on the carriage is provided with a mounting plate, the mounting plate is provided with positioning holes corresponding to the positioning blind holes, and a second winding rod is arranged in the carriage; the driving positioner is provided with a pushing cylinder and a rotating forward pusher, one end of the pushing cylinder abuts against the rotating forward pusher, the other end of the pushing cylinder is in sliding fit in the positioning hole, and the transmission input end of the rotating forward pusher is connected with the second winding rod through a driving belt. The positioning shaft is driven to rotate along with the second winding rod, and it is guaranteed that when the lifting hook is pulled downwards or upwards, the positioning device can be driven to secondarily fix the variable-amplitude trolley.
本发明公开了一种塔式起重机的吊臂支架及塔式起重机,属于起重机技术领域。吊臂支架包括吊臂支撑架、括驱动定位器,吊臂支撑架上安装有变幅小车,吊臂支撑架具有第一底框,第一底框的一边框内表面设置有一排定位盲孔;变幅小车滑动配合在第一底框上,第一底框具有车箱,车箱上的上板设置有安装板,安装板上设置有对应定位盲孔的定位孔,车箱内设置有第二缠绕杆;驱动定位器具有推进筒和转动前推器,推进筒的一端抵触转动前推器,另一端滑动配合在定位孔中,转动前推器的传动输入端和第二缠绕杆之间通过驱动带连接。本发明通过驱动定位轴伴随第二缠绕杆进行旋转,保证吊钩下方或者上拉时驱动定位器能够对变幅小车进行二次固定。
Suspension arm support of tower crane and tower crane
一种塔式起重机的吊臂支架及塔式起重机
26.01.2024
Patent
Elektronische Ressource
Chinesisch
IPC: | B66C Krane , CRANES |
Lower support assembly for tower crane and tower crane
Europäisches Patentamt | 2022
|Tower crane foundation, tower crane and mounting method of tower crane
Europäisches Patentamt | 2024
|Arm support and tower body connecting system of tower crane and tower crane
Europäisches Patentamt | 2023
|