MINING PICKS

Product Details

TYPE	d	H	D	D1	H1
U47-19	Φ19	147.5	51	30/38	63.5
U47-22	Φ22	150.5	51	30/38	63.5

Coal Mining Conical Picks is one of the vulnerable parts in coal mining, and is the main tool for dropping and crushing coal. U47 is one serie of those coal mining conical picks.The performance of its selection directly affects the production capacity of mining machinery, power consumption, work stability and other related parts of the service life.

As the coal mining conical pick is a key part of the shearer, and its working environment is very bad, which requires it to have high wear resistance, strength and good toughness.

The working process of the coal mining conical picks

Under the action of the front edge of the cutting teeth, the coal is broken and the large pieces are stripped. At the moment when the coal mining conical pick begins to contact coal, the pick produces elastic and plastic deformation within the contact range, and with the increase of contact stress, exceeding the strength limit, it is crushed into a very fine powder stroke dense core, which is composed of crushed coal under pressure, and with the advance of the cutting tool, the dense core gradually grows and gathers energy, and the resistance to intercept also increases.

The dense core compresses the coal area in front of it and causes elastic deformation in this part. Because the zone of stress state of the ore body around the dense core, it actually plays a role in changing the geometric shape of the teeth head. When the contact stress of the cutter tip is increased to the limit value, the dust in the pre-core area of the chamber tells the ejection, driving the small piece to peel off.

Zhuzhou Xinda Machinery Technology Co Ltd, is leading manufacturer of coal mining conical picks in china

Zhuzhou Xinda Machinery Technology Co Ltd, is leading manufacturer of coal mining conical pick in china, U47 is one of the model we produced.we have over 20 years experience in conical picks production. Use our coal mining conical picks can bring high feed rates, long service lives and short changeover times ensure high conveying capacities.