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1.滑轮梁存在的缺陷桥式起重机起重小车上均配置定滑轮,其作用是承载起升负载和改变力的传递方向。传统的桥式起重机定滑轮均位于起重卷筒和起重小车架下方的滑轮梁上,滑轮梁与小车架为超静定连接方式,即滑轮梁两端与小车架采用焊接方式固定在一起,如图1所示。此种滑轮梁结构主要仔在以下3个缺陷:一是滑轮梁位于小车架下部,安装空间狭小,难
1. Pulley beam defects Bridge crane crane trolley are equipped with fixed pulley, its role is to carry lifting load and change the direction of transmission of force. Conventional overhead traveling crane fixed pulleys are located on the pulley under the lifting drum and lifting frame, the pulley beam and the small frame for the statically indeterminate connection, that is, both ends of the pulley beam and the small frame by welding Fixed together, as shown in Figure 1. This pulley wheel structure mainly Aberdeen in the following three defects: First, the pulley beam is located in the lower part of the frame, the installation space is small, difficult