Fixed gantry crane
A portal crane and stationary technology, which is applied to cranes and other directions, can solve the problems of single crane function and poor balance performance of cranes, and achieve the effect of good balance.
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[0009] see figure 1 , a fixed portal crane 100, which includes: a base 1, a cylinder 2 arranged above the base 1, a turntable 3 arranged above the cylinder 2, a machine room 4 arranged above the turntable 3, Driver's cab 5, upper rotating column 6 and boom system 7, said boom system 7 includes: a balance beam 70 and a large tie rod 71 installed on the upper rotating column 6, a boom 72 installed on the turntable 3, and a large The elephant trunk bridge 73 that pull bar 71 and arm frame 72 are connected and the small pull bar 74 that is arranged between arm frame 72 and big pull bar 71, the below of described machine room 4 is provided with counterweight 40, and described machine room 4 is provided with There is a control system for controlling the lifting of the spreader and a control system for controlling the opening and closing of the spreader. The outside of the cylindrical body 2 is provided with a staircase 20 leading to the machine room 4 and the driver's cab 5. The boo...
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