| 摘要 |
Bridge crane has double-girder structure connected by end beams, having wheels for displacement over the crane rails, the truck on the wheels is mounted on the rails, on which the lifting mechanism with the hook and the suspension is located. The wheels of end beams and the wheels of the truck in the external circle have a crown. External surface of hook, suspensions and elements of the device of displacement of the conduction are equipped with protective surface preventing from the spark. Wheel rim and rollers of the device of displacement of conductors are made of material that does not formthe sparks, and electrical equipment is explosion-proof.
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