YDB flameproof oil-cooled electric drum is available with a transport machinery under environmental conditions explosive mixture of flammable gas, gas, dust and the like used to make the drive. Explosion flag dI, dIIAT4, dⅡBT4. dI suitable for methane or coal dust explosion hazard of mixtures of mine, dⅡAT4 suitable Ⅰ, ⅡA grade T1-T4 group explosive mixtures dangerous places, dIIBT4 suitable Ⅰ, IIA, ⅡB stage T1-T4 group explosive hazardous compound existing sites. Can meet a variety backstop, plastic packets and other requirements.