A counterweight is a counterweight, the purpose of which is the complete or partial balancing of forces and masses located in machines or their parts. Used in cranes and elevators, mining and coal industry, etc. The counterweight does not require special maintenance, and is reliable in operation. The mass of the shaft-type counterweight is regulated by a set of weights, starting from the mass of the cage (skip).
As a suspension device in the counterweight is used suspension device with a wedge bucket with two-sided rope clamping, which provides zantsivanie lifting rope. To hold and smoothly stop the counterweight in the event of a break in the lifting rope or suspension device in the counterweight, a mine parachute of the PTKPA type was used.
| Name of counterweight | 2NOV4,5×1,5 | 21PMK |
|---|---|---|
| Type of suspension device | UP-20 | Siemag ST260 |
| Parachute type | PTCA-20 | – |
| Head rope diameter, not more, mm | 50,5 | 42 |
| Conductor type and arrangement | Metal boxed, 160×160, double-sided | Metal boxed, 200×200, double-sided |
| Distance between conductors, mm | 1810 | 1850 |
| Balancing rope | – | Flat, 204×34 2 pcs. |
| Dimensions, mm | 2035х1100х7240 | 2132х800х13890 |
| Weight with loads and attachments, not more, kg | 14600 | 37200* |
| Weight of one load, not more, kg | 101 | 62 |
| Number of loads, pcs | 105 | 430 |
| * value is adjusted depending on the suspension device | ||