Electric hoist single-girder gantry crane maintenance platform modification

Current situation analysis of electric hoist single-girder gantry crane is widely used in outdoor environment loading and unloading of goods. For L type electric hoist single-girder gantry Manual hoist, every time when overhauling electric hoist is one of the maintenance, to ensure the normal maintenance of electric hoist, often used when manufacturing method based on a crane gate leg erection overhaul platform, platform construction can be divided into two categories: fixed and discharge type. For fixed maintenance platform, in order to guarantee the safe operation of electric hoist Manual block process, platform edge must keep a safe distance with the electric hoist (usually not less than 5 0 0 mm), the existence of the original table arrangement distance, make the electric hoist maintenance disassembly is very difficult, to be the body stretched out when the repairman in maintenance platform, sometimes need lift car even escalator to complete the maintenance task. Hold dump maintenance platform is set up when needed to repair, can solve the stationary platform caused by the platform and electric hoist distance too far.