The invention discloses a portal frame of a portal crane, which belongs to the technical field of cranes and comprises two bases, a plurality of moving wheels are arranged at the lower ends of the two bases, electric push rods are arranged in the middles of the lower ends of the bases, supporting frames are arranged at the output ends of the electric push rods, mounting frames are arranged at the upper ends of the two bases, and guide columns are arranged in the mounting frames. By arranging the lifting assembly, when the fixing plate needs to be adjusted at different heights, a motor is started to drive a first bevel gear to rotate, the first bevel gear rotates to drive a threaded column to rotate through a second bevel gear, the threaded column rotates to drive a guide column to ascend and descend through a threaded groove in the guide column, and therefore the effect of adjusting the fixing plate at different heights is achieved; the lifting assembly is arranged to adjust the height of the fixing plate more stably, due to the fact that the threaded column is in threaded connection with the guide column, when the motor is damaged or powered off, the guide column does not have the risk of sliding down, and the device safety is higher.
本发明公开了一种门式起重机门型架,属于起重机技术领域,包括两个底座,两个所述底座下端均设置有若干移动轮,底座下端中间位置设置有电动推杆,电动推杆输出端设置有支撑架,两个底座上端均设置有安装架,安装架中设置有导柱,本发明通过设置升降组件,需要对固定板进行不同高度调节时,开启电机带动斜齿轮一转动,斜齿轮一转动通过斜齿轮二带动螺纹柱转动,螺纹柱转动通过导柱中的螺纹槽带动导柱升降,从而达到对固定板进行不同高度调节的效果,通过设置升降组件对固定板进行高度调节更加稳固,由于螺纹柱与导柱螺纹连接,当电机发生损坏或断电时,导柱不存在向下滑落的风险,装置安全性更高。
Portal frame of portal crane
一种门式起重机门型架
2023-12-08
Patent
Elektronische Ressource
Chinesisch
Portal frame of portal crane and installation method thereof
Europäisches Patentamt | 2020
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