Rail clamp on the application of gantry crane

  According to GB6067 --- 85 "crane safety regulations" states: open-air work, single girder  bridge gantry crane  rail clamp should be set up, anchoring devices or iron shoes. For outdoor work on the track crane rail clamp pliers and its anchoring device or iron shoes should be able to withstand non-working state when you are not the subject at the maximum wind blown.

      Locomotive rail clamp and clamp shaft through the hole in the back-end connections, locomotives when walking, dragging (push) synchronous dynamic rail clamp is moved, the guide rail clamp wheel in under the pressure of the weight of rolling along the serpentine track, and by the Idler bracket, guide rail clamp pliers whole drive shaft in a fixed axis along the track surface float. Automatic rail clamp can automatically single girder  overhead gantry crane  locked in orbit, in order to prevent accidental thrust sometimes slip by. Rail clamp automatically open the car traversing the state, other states automatically clamped. Control system adopts Siemens PLC control. Without changing the original machine operator action under the premise of the crane through the PLC system and stop walking walking mechanism, brakes and brake open, rail clamp opening and clamping other actions to implement automatic control, improve the overall stability of the and safety.

      Prevent strong wind outdoor cranes glide along the rail crane safety device. Usually with a single girder  hoist gantry crane  at the bottom of the clamp structure connected together, the head of the two sides of the track grip to prevent sliding. Rail clamp of manual and electric type two (see Figure). Hand rail clamp screw is generally simple structure, but the clamping force is small and slow, mainly for the small size of the windshield or temporary use small cranes. Large cranes or port cranes used mainly electric rail clamp. It is made by a lever or hammer spring force clamp clamping rail, by force of the hydraulic system of the cylinder release clamp.

      Heavy hammer more cumbersome dimensions large clamping force smaller than the spring, the work is not as smooth spring style. Electric spring rail clamp achieved through anemometer with crane electrical interlock, when anemometer wind reaches the crane can not guarantee the normal operation of wind (usually corresponding to 6 to 7), the single girder gantry crane power , clamps grip the track. This folder track work and high reliability.