When The World's First Jaw Crusher Was Designed?

Americans EW Blake (Black) designed and manufactured the world’s first jaw crusher. Its structural form of the elbows plate (simple oscillating type) jaw crusher.Twenty20 1980s, crushing 800 tons of material per hour, large jaw crusher feed particle size has reached about 1800 mm. Jaw crusher used two elbows and single bracket plate. The former moving jaw work only for simple swing arc, it is also known as simple swing jaw crusher; latter while swinging in an arc up and down movement, it is also known as complex swing jaw crusher.

The main content of minor repairs including check and repair broken jaw adjustment devices to high-speed liner U-turn row of the discharge port clearance to wear or replace. Overhaul transmission parts, lubrication systems and replacement of oil. Minor repair cycle for about 1-3 months.Repair in addition to all the work for minor repairs, including the replacement of the thrust plate, linings, inspection and repair bush. Repair cycle is generally about 1-2 years.Overhaul in addition to the ongoing repair work also includes replacing or turning the eccentric shaft and moving jaw the spindle casting rod head of the Ministry of babbitt replacement or repair all wear parts. Jaw crusher machine overhaul cycle for about five years.

Regularly shut jaw broken the check machine any stone crushing equipment in the switch machine should pay attention to regular wear off jaw broken machine check inside the machine as the center into the feed tube, tapered cap, impeller, indecent Road liner circumferential shield, the degree of wear of the wear blocks immediate replacement of wear parts to repair these parts at the same time pay attention to replacement parts by weight of the model and size must the replacement according to the original component parameters.

Domestic jaw crusher manufacturer technical level is very different from the poor, there are a small number of manufacturers of products close to the world advanced level, and most of the manufacturers of the products with the world advanced level larger than the gap. The jaw crusher rack accounted for a proportion of the whole quality (casting rack accounted for 50% and welding rack accounted for 30%).

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