Drive system

The transmission system of the conveyor includes a motor, a reducer, etc. The single-speed motor transmits power to the reducer shaft through the brake disc coupling sleeve ; then the reducer output shaft is transmitted to the sprocket assembly; the sprocket drives the closed scraper chain as required Run in the direction to complete the task of transporting coal.

2. Conveyor composition

The conveyor is mainly composed of the head drive part, the tail drive part, the middle groove, the skylight groove, the cable groove, the scraper chain, the pin rail, the head moving part, the tail moving part, the transitional moving beam, the chain stopper and tools composition.

3. Structural features and functions of the main parts of the conveyor

Head drive

Mainly by the head frame, the sprocket assembly, the tongue plate, the derailleur, a transmission (including reducer, brake disks coupling sleeve, electric mover) and other component parts.

Headstock

For mounting the support frame body, on both sides of the drive means, the sprocket assembly, the tongue plate, like the derailleur mounting member can be reduced speed, a headstock mounted on the base of the passage, drive means mounted on the goaf side.

Tongue plate

Before the tongue plate mounted above the head frame, and fixed to protect the derailleur, and unloading of coal in the head, the wiper is at the junction of the horizontal plate chain segment and the return segment. Therefore, the contact pressure with the scraper chain is large and the wear is serious, requiring regular replacement.

Derailleur

The derailleur is installed in the front slot of the head frame, and the shift fork is inserted in the sprocket tooth slot, so that the chain ring is separated from the sprocket. When the derailleur is replaced, it can be replaced by removing the tongue plate, which has the advantage of eliminating the need to remove the sprocket.

transmission

The transmission device is composed of speed reducer, brake disc coupling sleeve, motor, and other components. The site conditions may be mounted on the machine left headstock, on either side of the right, is the power source of the entire conveyor. The structural characteristics of the reducer member, such as a motor and so explanatory See related instructions.

Sprocket assembly

The sprocket assembly mounted in the nose portion of the head frame transmission, mainly by the cap, bearing, sprocket body axis, the floating seal ring group member, and so the rolling bearing. The sprocket is a forged seven-tooth sprocket, machined and formed by the machining center machine tool, and the tooth surface is quenched. The power is input by the reducer and transmitted to the sprocket through the sprocket shaft, so that the sprocket drives the scraper to run. At each end a sprocket shaft sleeve double row tapered roller bearings, lubricated with thin oil, floating seal, remote fueling mode, lubricants GB3141 negative charge industrial gear oil N460 , up to fill up the tank, oil change once quarterly. The head frame is fixed in the bearing housing by pressing to achieve the block, without removal of drive sprocket assembly can be detached as a whole, easy to repair and maintenance. After the sprocket assembly has been running for 6 months, it is installed after being turned 180 ° , so that both sides of the sprocket teeth are evenly worn.

Tail drive

The structure of the tail transmission part is basically the same as that of the head transmission part, the difference is that the guide body, the coal return cover and other components are added. The main function of the guide body is to smoothly introduce the upper chain at the tailstock into the middle slot. The coal return hood can return the coal from the bottom chain of the middle trough to the chain path of the tailstock and transport it to the machine head for unloading.

Middle slot, sunroof slot, line changing slot (elevation slot)

The conveyor is a cast-welded bottom chute, and forged dumbbells are used to connect the grooves. Various chutes are equipped with observation holes for the bottom scraper chain . The skylight slot is used to deal with various situations that occur during the operation of the bottom scraper chain. The machine head part and the machine tail part are provided with 3 sections of height-increasing and variable grooves to ensure the unloading height of the conveyor and the undercover amount of the shearer, which is convenient for the shearer to open the gap and smoothly fall coal along the working surface.

Scraper chain, adjusting chain

Conveyor chain double center scraper chain structure type, ring chain metal mining high strength ring chain; and the cross blade by screw bolt fixed to the plate-link chain ring, the ring is coupled with the connection link between the segments , The connecting ring must be far away from the scraper. Factory made scraper chain except the entire ring chain, further when the goods with 3 , 5 , 7 ring chain length for adjusting the whole length of the conveyor chain. The adjusting chain is used to adjust the length of the scraper chain to adapt to the change of the conveyor length. The structure of the adjusting chain is exactly the same as the scraper chain.