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Sell Cutting unit
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Product Details
Brand Name: | China Coal | Place of Origin: | China |
Product Description
Cutting unit introduction
Shearer cutting unit is composed of a fixed gear box, rocker arm, drum, coal blocking board and a height adjusting system. Effect of cutting unit is the power of the motorthrough reducer, transfer to the cutting drum, to cut coal, and through the helical vane drum on the cutting down of coal loaded into the working face conveyor. In order to improve the effect of spiral drum coal, coal blocking board is arranged in the drum.
Shearer cutting unit feature
(1)Cutting the department adopts mechanical transmission. Fixed gear box is the mainpart of the cutting department. Shearer motor speed is generally about 1470r/min, andthe rotation speed of the roller according to different diameter is 50r/min-100r/min. In order to achieve the purpose of slowing down, cutting reducer generally consists of 3 -5 reduction gear, the axis and motor roller is vertical, thus cutting in cutting gear boxare using a pair of circular gear.
(2)The drum cutting speed (circular tooth tip tangential speed) is 4m/s-5m/s, the diameter of the cylinder, the speed should be changed accordingly, usually so I cut in cut in the reduction box has a pair of fast gear can be replaced. The number of teeth to change gears, can change the rotation speed of the roller.
(3)A clutch transmission device between the electric motor and the drum. Shearertransfer or maintenance, the need to open the clutch test of traction department or the drum rotation, stop. In addition, in order to personnel safety, when the coal mining machine stop work, also need to drum and the motor is disconnected.
(4)In order to make the shearer cutting drum gap arranged, usually out of body (orbottom bracket) distance length outside, many shearer rocker form by lou.
(5)In order to adapt to the changes of coal seam thickness and coal, the height of cutting drum section are adjusted. Most by shearer rocker arm height adjustable form,adopted the bottom bracket height adjustment form. Shake wall up and bottom bracketheight adjustment adopts hydraulic drive.
(6)Shearer working process, behind the coal blocking board had no drum, so when the shearer traction direction change, coal blocking board from one side to the other sidedrum. Coal blocking plate turnover device adopts hydraulic cylinder or hydraulic motor drive, there are no driving device is specially, and the use of rotating drum coal blocking board.
(7)In order to realize the cutting drum height adjustment and the coal blocking boardturnover, shearer has a set of separate auxiliary hydraulic system. Auxiliary hydraulicpump or gear box cut in cut, some installed in the auxiliary hydraulic tank alone, there are installed in the traction within the department.
Contact Us
- China Coal in Shandong
- Contact nameMs Cindy Liu
- Phone86-537-2351381
- AddressNo.69 Huoju Road, New & High Zone,Jining City,Shandong Province,China Zaozhuang,Shandong
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