Emergency braking and protecting device of construction hoist

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Emergency braking and protecting device of construction hoist

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ZHOU MING / CHEN XINXIA / JIANG LIPING / ZHOU HUAGUANG

The emergency braking and protecting device comprises a guide rail frame, a lifting cage and a transmission mechanism, a rack is fixedly connected to the guide rail frame, a first braking mechanism is fixedly connected to a transmission chassis of the transmission mechanism, the first braking mechanism comprises a first braking part, and the first braking part achieves braking through friction with the guide rail frame; a braking gear is rotationally connected to the transmission chassis and is in meshed connection with the rack, a braking disc and a braking component are fixedly connected to a transmission shaft of the braking gear, a second braking mechanism corresponding to the braking disc is fixedly connected to the transmission chassis, and a second braking part in the second braking mechanism rubs with the braking disc to achieve braking. A third braking mechanism is fixedly connected to the transmission chassis, and a limiting piece of the third braking mechanism can limit the braking component, so that the braking component cannot rotate. The invention relates to the technical field of construction hoists, and has the characteristics that the braking effect is more excellent, and the stability of the braked cage is higher.

本发明公开了一种施工升降机紧急制动和防护装置，包括导轨架、吊笼以及传动机构，导轨架上固定连接有齿条，传动机构的传动车盘上固定连接有第一制动机构，第一制动机构中包括第一制动部，第一制动部通过与导轨架摩擦实现制动，传动车盘上转动连接有制动齿轮，制动齿轮与齿条啮合连接，制动齿轮的传动轴上固定连接有制动盘以及制动构件，传动车盘上对应制动盘固定连接有第二制动机构，第二制动机构中的第二制动部与制动盘摩擦实现制动，传动车盘上固定连接有第三制动机构，第三制动机构的限位件可对制动构件进行限位，从而使得制动构件无法产生转动。本发明涉及施工升降机技术领域，其具有制动效果更加优异，可保证制动后吊笼稳定性更强的特点。