The invention relates to a crane capable of adjusting a counterweight position. The crane capable of adjusting the counterweight position comprises a crane main body and a counterweight; guide rails are arranged on the crane main body; hanging lugs are arranged on the counterweight; the counterweight is guided and supported on the guide rails through the hanging lugs; rolling ball sets used for supporting the hanging lugs in the vertical direction are arranged between the guide rails and the hanging lugs; and either each of the guide rails or each of the hanging lugs is provided with rolling ball retaining holes allowing corresponding rolling balls in the rolling ball sets to be partially embedded, and the other one of each of the guide rails and each of the hanging lugs is provided with arolling fit face used for being in rolling fit with the rolling balls. The counterweight is supported on the guide rails in a guiding and moving mode through the hanging lugs, and the rolling balls are positioned through the rolling ball maintaining holes, so that the stable operation of the rolling balls is guaranteed; and the guide rails achieve guiding and supporting of the hanging lugs through the rolling ball set, so that the rolling ball abrasion is small, guiding is reliable, the stable operation of the counterweight is facilitated, and the operation safety of the crane is guaranteed.
本发明涉及一种配重位置可调的起重机。配重位置可调的起重机包括起重机主体和配重,起重机主体上设有导向轨道,配重上设有挂耳;配重通过挂耳导向支撑在导向轨道上;导向轨道与挂耳之间设有用于沿竖直方向支撑挂耳的滚珠组,导向轨道与挂耳的其中一个上设有供滚珠组中的相应滚珠部分嵌入的滚珠保持孔,另一个上设有用于与滚珠滚动配合的滚动配合面。配重通过挂耳导向移动的支撑在导向轨道上,保持孔对滚珠进行定位,保证滚珠的稳定运行,导向轨道通过滚珠组实现对挂耳的导向支撑,滚珠磨损较小,导向可靠,利于配重的平稳运行,保证了起重机的作业安全性。
Crane capable of adjusting counterweight position
配重位置可调的起重机
2020-12-22
Patent
Electronic Resource
Chinese
IPC: | B66C Krane , CRANES |
CRANE HAVING A COUNTERWEIGHT ADJUSTMENT DEVICE, AND METHOD FOR ADJUSTING A COUNTERWEIGHT ON A CRANE
European Patent Office | 2019
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