What are the basic parameters of a crane?

The basic parameters of the crane have those?

    Procurement cranes, driving cranes, are required to master some common crane parameters, understand the meaning of these parameters, the following are some of the more common crane parameters:

    1. lifting capacity G: the quality of the lifted weight, generally measured in tons.

    2. Effective lifting capacity Gp: crane can lift the net mass of heavy objects or materials.

    3. Rated lifting capacity Gn: crane allowed to lift heavy objects or materials, together with the sum of the mass of the spreader can be divided.

    4. Total lifting capacity Gt

Crane can lift the weight or material, together with the spreader and long-term fixed in the crane spreader or rigging (including hooks, pulley block, lifting wire rope, and other lifting objects below the trolley) the sum of the mass.

5. Maximum lifting capacity Gmax.

  Crane in normal working conditions allows lifting the maximum rated lifting capacity.

  6. Crane mass Go

  Crane parts of the sum of the mass.

  7. Wheel pressure P

  A wheel transfer to the maximum mass load on the track (according to working conditions, divided into working wheel pressure and non-working wheel pressure).

  8. cantilever effective distance Z

  From the cantilever nearest crane track center line to the center line of the spreader located at the end of the cantilever between the distance.

  9. Lateral limit position of spreader C

  Crane rail centerline and spreader vertical centerline between the minimum horizontal distance.

  10. Lifting height (effective lifting height)

  The vertical distance between the highest permissible position of the crane spreader and the ground.

  11. Lowering depth^

  The vertical distance between the lowest working position of the crane spreader and the ground.

  12. Lifting range D

  The vertical distance between the highest and lowest permissible working positions of the spreader. D = H + ho

  13. Lifting (lowering) speed Vn

  The vertical displacement speed of the rated load under the steady state of motion.

  14. Micro descending speed Vm

  Stable state of motion, the maximum rated load of the minimum descent speed.

  15. Crane (trolley) running speed Vk

  Stable running state, the crane running speed. Provided for the height of 10m above the ground, the wind speed is less than 3m / s when the crane in the trolley track with the rated load running speed.

  16. Trolley running speed vt

  Stable state of motion, the trolley running speed. Provided that the height of 10m above the ground, the wind speed is less than 3m / s, with the rated load of the trolley in the horizontal track running speed.

  17. Crane track elevation

  The vertical distance between the top surface of the crane track and the ground.

  18. Span S

  Bridle type crane support center line of the horizontal distance between the center line, can also be understood as the horizontal distance between the center line of the track.

  19. Braking distance

  The working mechanism from the operation of the brake to the beginning of the mechanism to stop, spreader (or trolley, trolley) the distance passed.

  20. Work cycle

  Crane lifting heavy loads, including loading, work trip, unloading, empty return trip and loading and unloading of auxiliary work, including a loading and unloading of the total work process.

21. Work cycle

Crane a total time of the work cycle, also known as cycle time.