The overall design of hammer crusher

Hammer crusher of the overall design, single rotor, multi-row hammer, irreversible hammer crusher, model pc- 800 × 800. By the chassis, the rotor, the bar, hit the plate, hammer, stent, liner and other components.

 

1. The cabinet is composed of upper body, rear cover, left side wall and right side wall, all parts are bolted into one body, the upper part has the inlet port, the inner inserts are made of high manganese steel liner, Between the case and the shaft leakage phenomenon is very serious, in order to prevent leakage of dust, with a shaft seal. The lower part of the cabinet is placed directly on the concrete foundation and fixed with anchor bolts. In order to facilitate maintenance, adjustment and replacement of the bar, the body on both sides of the front and rear have a maintenance hole. In order to facilitate maintenance, replace the hammer to facilitate the two sides of the wall is also symmetrical open maintenance hole.

 

2. The rotor consists of spindle, disc, pin and other components, the disc has six evenly distributed pin hole, through the pin will be 6 8 hammer hanging up. In order to prevent the axial movement of the disc and the hammer. Both ends of the pin are fastened with a locking nut. The rotor is supported on two rolling bearings. In addition, in order to keep the rotor in the movement of a certain kinetic energy, to avoid crushing large pieces of material, the hammer speed loss is not too large and reduce the motor peak load, at the end of the spindle is also equipped with a flywheel.

Hammer crusher hammer crusher

 

3. The spindle is the main part that supports the rotor, and the impact force is borne by it. Therefore, the material is required to have high toughness and strength. Usually cross-section is round, and there are flat keys and other parts connected.

 

4. There are two pieces of punch, polyline. One can be adjusted, one is fixed. One of the adjustment is the screw device mounted on the box.

 

5. Hammer is the main working part. Its quality, shape, and material on the crusher's production capacity has a great impact. Therefore, the appropriate hammer quality is selected according to the different feed sizes. To break the medium hardness of the material.

Hammer with high carbon steel casting or forging, can also be used high manganese steel casting. In order to improve wear resistance, and some hammer surface coated with a layer of cemented carbide, and some use of high chromium cast iron.

 

6. The arrangement of the bars is perpendicular to the direction of movement of the hammer. And the radius of rotation of the rotor has a certain gap of the arc-shaped, qualified products through the ridge discharge. Its cross-section shape for the trapezium, commonly used manganese steel cast. The poles are mostly a group of equal-sized bars. At the time of installation, insert the groove on the grate, and the two bars are separated by a gasket. Trapezoidal shape with trapezoidal shape.

 

7. The grate and hammer clearance are adjusted by means of a cam (driven by a ratchet).

 

8. The given raw data is:

(1) crushing capacity of 20 to 30 tons.

(2) The speed of the crusher rotor is between 900 and 1100

(3) crusher maximum material feeding particle size: less than 150

(4) crusher maximum discharge size can not exceed: 10

(5) crusher material to allow humidity less than 9%.

(6) crusher broken degree: medium and fine.

(7) crusher applications are: cement plants, coal preparation plants, fire power plants.

(8) crusher broken objects are: limestone, coal, coke, gypsum and other soft materials.