| Abstrakt: |
In the conditions of reconstruction or technical re-equipment of grain storage and processing enterprises, there are cases of absence or impossibility of using the necessary universal lifting and transport means, in particular, construction tower or selfpropelled jib cranes at the installation sites. In such situations, they resort to the construction of specialized rigging and installation installations, which are based on the use of rigging and installation mechanisms, rigging devices and rigging equipment. The given sequence of actions, definitions and calculations at the same time practically excludes the adoption of unfounded and erroneous decisions. Most often, such installations are located near the facade walls of buildings, equipped with installation slots and loading and receiving platforms, hoists and cargo winches. Choose the design, location and means of fastening the mounting beam or boom. The load capacity of the winch, from among those in the distribution, is specified and accepted. Determine the required multiplicity of the hoist, its efficiency, the amount of tensile and breaking forces in the load rope. Choose the type and diameter of the rope, as well as its length. Determine the rope capacity of the cargo winch drum and specify its technical characteristics. Choose the location and method of securing the winch. If necessary, calculate the mass of the ballast counterweight. Choose the location and method of attachment of the diverter block, determine the amount of force exerted by this block on the building structure or anchor. Choose the type of anchor and, if necessary, calculate its stability. If it is necessary to pull the load from the front wall of the building or structure, calculate the pulling force and choose the necessary winch or hoist for this. The effort to pull the cargo from the receiving platform into the premises and the technical means required for this are determined. [ABSTRACT FROM AUTHOR] |
