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Introduction of scraper conveyor

March 07, 2021
First, the classification of scraper conveyor

According to the arrangement and structure of the scraper conveyor chute, it can be divided into side by side and overlap type.

According to the number and arrangement of the scraper chain of the scraper conveyor, it is divided into single chain, double chain, double center chain and triple chain.

Second, the structure of the scraper conveyor

Transmission

(1) Electric motor. The power source of the scraper conveyor.

(2) Coupling. Connection between the motor and the reducer or reducer and the head drive spindle.

(3) Reducer. A device that changes the number of motor revolutions and transmits the torque of the motor.

(4) Spindle. Drive the main sprocket and then pull the scraper chain to move.

2. Scraper chain

The traction mechanism of the scraper conveyor, the breaking load of the 14×50 connecting ring in the opening connecting ring of the scraper conveyor should be greater than 225KN, and the breaking load of the 18×64 connecting ring should be greater than 370KN.

3. Chute

Scraper conveyor traction chain and cargo guiding mechanism. The chute can be divided into an intermediate chute, an adjustment chute and a connecting trough.

4. Safety device

(1) Insurance pin protection device. The connection between the drive sprocket and the sprocket of the main shaft and the main shaft is transmitted through the safety pin. When the load on the main shaft exceeds the allowable specified value, the safety pin is sheared and broken, so that the motor is idling and the conveyor stops working to achieve overload protection.

(2) Friction plate protection device. The friction plate of the SGD-11 type is installed in the decelerator. When the machine is overloaded, the inner and outer friction plates in the reducer slip, which stops the conveyor and achieves the purpose of protection.

5. Tight chain device

Adjust the tightness of the scraper chain.

6. Shift device

When using single prop in coal mining face, the position of the passage have a special scraper conveyor.

7. Coal blocking board and shovel

The coal shield is designed to improve the transport capacity of the scraper conveyor and prevent coal from being thrown into the goaf.

8. Hydraulic coupler

Also known as a torque-type fluid coupling.

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Author:

Mr. Jacky Guo

Phone/WhatsApp:

8613722852356

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