Tower crane hoisting height

  Tower crane lifting capacity varies with amplitude. From the weight of the product and the magnitude of the load torque is called, it is the main technical parameters of this crane. By rotating mechanism and slewing tower crane lifting height, large inertial mass turn and walk, it needs to have good speed performance, particularly the lifting mechanism required to light load fast, slow reload, install it Bit jog. In addition to using resistance governor general, but also often using eddy current brake, FM, change pole, SCR and electrical joint, etc. governor.
  To ensure safety, the tower crane has a good safety device, weight, amplitude, height and other restrictions devices such as load moment onwards, as well as travel limit switches, overhead lights, anemometer, wind rail clamp, ladder ring Body , walkways and railings. Good point lifting arm and the arm rod and pin. Prepare two sleepers adequate support frame or block. According to the order specified in the instructions lifting arm assembled and placed on the support frame or sleepers, then assembled a good jib boom lever. Car maintenance platform will be equipped with luffing jib trolley loaded rod under two strings. Press the corresponding magnitude every 10 meters installed signs and check the boom and the boom rod and cotter pin is all interspersed with firmly. Lifting crane arm assembly: first hanging in interviewing, grasp the focus, then formal lifting, with its roots in the same revolving pins bearing frame side hinge point connected.