Can you tell me the mining machinery lubrication characteristics

First, the characteristics of the mining machinery: Underground mines are usually sub-mining and opencast mining two types.

       1, the mine limited space for mining machinery institutions compact, small size, and thus bearing the pressure on the gear and load large

       2, mining machinery must be able to facilitate regular movement, changing working conditions, the load changes.

       3, a more heavy-duty mining machinery, transmission speed or low speed, most require frequent starter, and often bear the shock loading;

       4, Mine poor environment, and wet with rock dust, coal dust and gas (methane is the main component), and some mines are the harmful sulphur gases (sulfur dioxide, hydrogen sulfide), many mining machinery have to face Fire, explosion-proof, anti-corrosion;

       5, open mining machinery to be able to withstand the wind, sun, rain and hot summer and cold winter, such as climate change;

       6, because mine is narrow in space, a ground maintenance machine difficulties and therefore asked the mining machinery to durability, ease of maintenance.

       Second, according to the characteristics of mining machinery, lubricants put forward the following demands:

       1, mining machinery and the volume of the tank volume is small, with the small amount of oil, higher oil temperature work, which requires lubricants have better thermal stability and oxidation resistance.

       2, because of the poor environment and mines, coal dust and rock dust, moisture more, these impurities lubricants bound to be pollution, as it is a good anti-rust lubricant, anti-corrosion and anti-emulsifying properties when requested by the oil pollution , the performance will not change too much, that is, the sensitivity to small pollution.

       3, the open-pit mine machinery great winter and summer temperature changes, and some areas are also great temperature difference between day and night, and therefore requested the lubricant viscosity with temperature changes to the small, it is necessary to avoid high temperatures, the viscosity of oil becomes too low, and could not be a lubricating film, not a role to be played lubrication, and to avoid the high viscosity at low temperature, so start, operational difficulties.

       4, in certain mining machinery, particularly in the high fire, explosion accidents in mines use some machinery, require the use of anti-flammable lubricant good (anti-burning liquid), can not use combustible mineral oil.

       5, requested lubricant on the adaptability of seal better, so as to avoid damage to seals.