Hydraulic transport vehicle - NZH2/4
Hydraulic transport equipment of type NZH2/4, further as transport equipment, is equipment used for transport and manipulation with burdens on single-track of profile I155 in horizontal level and in a slope to 25°.
As traction instrument a long as source of pressure oil is recommended to use the pendent locomotive or authorized type of manipulator.
NZH2/4 can be used in places with explosion hazard of methane or dust coal to the degree SNM 2 according to 232 public notice ČBÚ No. 22/1989 digest as amended by later regulations. According to regulation of government No. 23/2003 (directive EU 94/9 ATEX) the equipment falls under the group I and category M2.
Hydraulic transport equipment NZH2/4 is made by one cart (frame) with lifting equipment, operating and lever or hook. Lifting part consists of one (bearing value 1900kg) or two (bearing value 3800 kg) slow-running engines with stationary brake. On flange of hydraulic motor there is bolted a sprocket-wheel by which means the lifting chain is actuated. This configuration is fixed between the side plates of beran of cart. In facture with one hydraulic motor the sprocket-wheel is gripped on flange of hydraulic motor and of auxiliary console. The lifting chain is anchored on the frame so that the sprocket-wheel of hook or lever makes idle pulley. Unloaded end of chain is laid away to the spare bag.

| Technical data | |
|---|---|
| Maximum bearing capacity of NZH2/4 P1 (P2) | 3800 (7600) kg |
| Maximum bearing capacity (single carriage) | 1900 (3800) kg |
| Working stroke | depending on chain length (approx. 8 m) |
| Max. pressure of hydraulic drive | 16 + 10% MPa |
| Stroke time up to 1 m of NZH2/4 P1 (P2) | 11,6 (23) sec at 10 l.min-1 |
| Working fluid | hydraulic oil |
| Maximum slant | 25° |
| NZH2/4 P1 (P2) weight | 618 (662) kg |
| Maximum traction force of the traction vehicle | 110 kN |
| Maximum transport speed | 2 m/s |
| Maximum load transmitted to the rail by a single carriage | 4000 kg |
