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84-
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Introduction coarse jaw crusher
Coarse jaw crusher, commonly known as jaw crusher by the dynamic and static jaw board composed of two crushing chamber to simulate the movement of complete two jaw crusher crushing of materials. coarse jaw crusher according to the size of the width of the inlet is divided into large, medium and small three, than the width of the inlet 600MM for large machines, the inlet width of 300-600MM for medium-sized machine, feed width of less than 300MM for small machines.
Characteristics of coarse jaw crusher
1.Crushing chamber depth and no dead zone, increased feed capacity and output;
2. A large proportion of its broken, the product particle size uniformity;
3.Gasketed nesting population adjustment device, reliable and convenient, adjustable range, increasing the flexibility of the equipment;
4. Lubrication system safe, reliable, easy to replace parts, maintenance workload is small;
5 simple, reliable, low operating costs.
6 energy-saving equipment: stand-alone energy-saving 15% to 30%, more than double the energy system;
7 nesting population adjustment range, to meet different user requirements;
8 low noise, less dust.
Use of coarse jaw crushercoarse jaw crusher is widely used in mining, smelting, building material, highway, railway, water conservancy and chemical industry in a variety of ores and bulk materials of medium-grained broken.
Coarse jaw crusher structurecoarse jaw crusher structure main frame, eccentric shaft, a large pulley, flywheel, moving jaw, side guards, elbow board, elbow board seat, adjust gap screw, spring return, the fixed jaw plate and the activities of the jaw plates and other components, which bracket also play a role in the insurance.
Coarse jaw crusher working principleThick part of the work is jaw-breaking two jaw plates, one fixed jaw plate (fixed jaw), vertical (or slightly outside the upper dump) fixed to the body front wall, the other is the activities of the jaw plate (moving jaw), position tilt and the formation of fixed jaw plate under a big small crushing chamber (working chamber). Activities of the jaw plate toward the fixed jaw plate to do periodic reciprocating motion, sometimes separately, sometimes close. Separately, the material into the crushing chamber finished unloading from the bottom; close, so that jaw plate mounted between the two materials being squeezed, the role of bending and splitting and crushing. Jaw suspension mandrel can be used as swing around the eccentric shaft rotates the rod up and down reciprocating motion. Such crusher crank double linkage, although the moving jaw broken by a great reaction force, and its eccentric shaft and connecting rod has a large discontinuity, so the industry made more mainframe and midrange, with to crushing hard materials. In addition, the crusher, the jaw on the trajectory of each point are based on the heart as the center of the arc axis, radius equal to the distance from that point to the axis, the upper arc is small, the bottom arc large, crushing efficiency is low, its crushing 3-6 than usually due to a simple trajectory, so that a simple swing jaw crusher.
Coarse jaw crusher repairs method To ensure the coarse jaw crusher works, in addition to proper operation, the need for planned maintenance, including routine maintenance checks, minor repairs, repair and overhaul.
(1) minor repairs: The main contents include inspection and repair adjustment device, high-speed discharge port clearance, the wear of the liner U-turn or change. Transmission repair parts, and replacement of oil and other lubrication systems.
(2) repair: In addition to all the work for minor repairs, but also including the replacement of the thrust plate, liner, bearing, etc. check and repair. In the repair cycle is generally 1-2 years.
(3) overhaul: in addition to all the repair work, including replacing or turning the eccentric shaft and jaw spindles, replacement or repair of worn parts. Overhaul cycle is generally 5 years.
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