The work of excavators driver is associated with rapid switching attention (high rhythm and speed of operations) and, therefore, with significant neuropsychic stress.
The main adverse factors in the work of the excavator driver should be considered noise and vibration. It is quite obvious that the parameters of noise and vibration often significantly exceed the maximum permissible levels. This primarily applies to the excavators of the E-10011 and E-801 used in the construction of roads (noise above the PDU for 14 dB).
In autonomous cabins, noise is 10-15% higher than in built-in, in electric cabs-almost 50% lower than with diesel or with diesel-electrical drive. The main source of noise is the excavator engine, and the additional gearbox, running units (a car with a tracked drive), compressors, electric motors and other machine mechanisms.
The noise is important in the collision of the excavator working elements about the soil. The hardness of the breed makes the engine speed increase, which in turn leads to an increase in noise level. In general, noise levels in the cabs of multi-bucket excavators during operations reaching 102 dB, higher than in the cabins of one-bucket excavators, 5-8 dB. So that the excavator driver receives a good rest after the end of the working day – we recommend buying an orthopedic mattress.
Meteorological conditions in the cabs of excavators depend on the season of the year and the degree of thermal insulation of the engine and the cabin. Summer time is characterized by overheating of the cabin. For example, the temperature of the excavator fences in the summer reached 46-50 ° C. In the cabin of the AIGC-202 multi-core excavator, the air temperature reached 33 ° C, and the relative humidity was 33% at air temperatures on the street 24 ° C and a moisture content of 49%.
