A system for controlling brakes
of a shaft lift
Hydraulic power pack is used in electro-hydraulic units controlling the breaks of lifting machinery, functioning, among other places, in coal mines. The power pack is intended for controlling hydraulic breaks of mining lifting machinery, functioning in various shaft lifts, equipped in braking cylinders (working pressure up to 16 MPa).
They provide three types of braking: manoeuvring, safety and stopping. The construction of this power pack is based on modern hydraulic and elec-tronic elements which guarantee high reliability of the brake and safe operation inside the shaft lift. The power pack uses, among other elements, the proportional pressure reducing valve for subplate mounting, including the control card; valves for sandwich mounting, installed between the subplate and di-rectional control valve and accumulator's safety block UZAE10.
technical parameters of hydraulic system
| nominal capacity of the tank | 300 l | elektric motor power | 5/3 kW | type of hydraulic fluid | olej hydrauliczny |
| pump type |
zębata | supply voltage of oil heaters |
230 V - 50 Hz | optimal viscosity of the fluid |
46 mm2/s |
| pump capacity |
11 dm3/rev. | control elements supply voltage |
24 V - DC | filtration | 10 µm |
| nominal working pressure of the system |
16 MPa | cooler motor power | 0,068 kW | optimal woring temperature | 40÷550 °C |
| electric motor type |
SKg 132 | cooler motor control voltage | 230-400 50/60 Hz | allowable working temperature | 10÷70 °C |
| elektric motor supply voltage |
3 x 500 V - 50 Hz | signals from processors of temp. and pressure | 4 - 20 mA | maximum noise level |
85 dB(A) |
Gallery
