Balancing device and electric single-beam crane using same

The utility model provides a balancing device and an electric single-beam crane using the same. The balancing device comprises an electric hoist, a rope guide arranged in the electric hoist, a tensioning device for winding a rope from the rope guide on a disc, a hook arranged on the disc, and a slowdown device arranged on the rope guide and used for slowing down the slowdown of the rope. According to the device, the rope wound on the roller is always kept in a tensioned state under the action of the air spring, so that the situation that an article suddenly slides down and collides with the ground when the article is subsequently hooked due to the fact that the rope is not tensioned can be avoided. And the spring arranged on the device is matched with the spring block, so that the shaking force of the rope can be counteracted, and the shaking of the rope is slowed down. 本实用新型提供一种平衡装置及使用该装置的电动单梁起重机，包括电动葫芦，所述电动葫芦内安装有导绳器，从所述导绳器出的绳索缠绕在圆盘的张紧装置上，安装在圆盘上的挂钩，安装在导绳器上的减缓晃动装置，用于减缓绳索的晃动。本装置中缠绕在滚轮上的绳索在气弹簧的作用下，始终保持张紧状态，能够避免