The invention relates to the technical field of hoisting tackles, and discloses a uniform speed pulley mechanism capable of avoiding an unstable operation of an electric tackle. The mechanism comprises a rotating shaft, wherein a mounting hole is formed in the front surface of the rotating shaft, a supporting rod is movably connected in the mounting hole, and a connecting rod is hinged to the end,far away from the mounting hole, of the supporting rod; A slide block is movably connected to the end, far away from the supporting rod, of the connecting rod, and a variable resistance mechanism ismovably connected to the back surface of the slide block. According to the uniform speed pulley mechanism capable of avoiding the unstable operation of the electric tackle, through the cooperative useof the variable resistance mechanism and the rotating shaft, when the rotating speed of the rotating shaft is high and exceeds the rated rotating speed, the resistance is automatically increased, andthe rotating speed of the rotating shaft is reduced; when the rotating speed of the rotating shaft is low and is lower than the rated rotating speed, the resistance is automatically reduced, the rotating speed of the rotating shaft is increased, the effect of always keeping the rotating shaft at a uniform speed is achieved, and the problem of unstable vertical hoisting speed caused by a unstablegravity center of a hoisted object or worker operation is avoided.
本发明涉及起重滑车技术领域,且公开了一种避免电动滑车运行不稳定的匀速滑轮机构,包括转轴,所述转轴的正面开设有安装孔,所述安装孔的内部活动连接有支杆,所述支杆远离安装孔的一端铰接有连杆,所述连杆远离支杆的一端活动连接有滑块,所述滑块的背面活动连接有变阻机构,该避免电动滑车运行不稳定的匀速滑轮机构,通过变阻机构和转轴的配合使用,当转轴的转速较快,超过额定转速时,自动增加电阻,降低转轴的转速,当转轴的转速较慢,低于额定转速时,自动降低电阻,提高转轴的转速,达到始终保持转轴匀速的效果,避免了因吊装物品重心不稳或者工人操作问题导致垂直吊放的速度不稳定的问题。
Uniform speed pulley mechanism capable of avoiding unstable operation of electric tackle
一种避免电动滑车运行不稳定的匀速滑轮机构
2021-02-12
Patent
Electronic Resource
Chinese
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