The invention discloses a grab bucket type crane trolley, and relates to the technical field of hoisting. The adjustment problem is solved. The device specifically comprises a walking vehicle body, a winding drum is rotationally connected to the side wall of the walking vehicle body, a twisted rope is wound around the outer wall of the winding drum, a grab bucket is arranged at the end of the twisted rope, a driving part used for driving rotation of the winding drum is arranged on one side of the walking vehicle body, and a guide mechanism used for guiding the twisted rope is arranged on the outer wall of the walking vehicle body. The variable-diameter belt wheel assembly is arranged, and the transmission radius of the variable-diameter belt wheel assembly can be adjusted through the variable-diameter adjusting assembly, so that the hoisting rotation speed of the sizing belt wheel is adjusted, on one hand, the hoisting efficiency can be improved when the weight of a heavy object is small, and on the other hand, the speed can be reduced and the torque can be increased when the weight of the heavy object is large; the safety is improved, meanwhile, the motor is prevented from being broken, and in the whole process, the motor can keep a proper rotating speed, so that stable torque output is guaranteed.
本发明公开了一种抓斗式起重机小车,涉及起重技术领域;为了解决调节问题;具体包括行走车体,所述行走车体的侧壁转动连接有卷筒,卷筒的外壁卷绕有绞绳,绞绳的端部设置有抓斗,且行走车体的一侧设置有用于对卷筒旋转驱动的驱动部,行走车体的外壁设置有用于对绞绳导向的导向机构。本发明通过设置变径带轮组件,利用变径调节组件可对变径带轮组件的传动半径进行调节,从而调节定径带轮的起重旋转速度,一方面能使得重物自重较小时,增加起重效率,另一方面还能使得重物自重较大时,降速增扭,增加安全性的同时也防止电动机憋坏,同时整个过程中,电动机均能保持适宜转速,从而保证扭矩输出稳定。
Grab bucket type crane trolley
一种抓斗式起重机小车
2024-09-27
Patent
Electronic Resource
Chinese
Method for controlling swinging of grab bucket of rope trolley crane
European Patent Office | 2015
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