5000t/h apron feeder in coal handling plant is the main part of the semi-moving crusher in the stope of Xinjiang open pit coal mine. It drives the sprocket shaft to rotate the power of the motor through the coupling and the reducer, and drives the chain plate to make continuous linear movement through the meshing of the sprocket teeth and the chain rail to transport the raw coal in the bin to the crusher.
The main characteristics are: 5000t/h apron feeder in coal handling plant is designed for large open-pit coal mine crushing station. Even in the north of Xinjiang this severe cold climate, can also continue to transport materials normally, to ensure long-term trouble-free continuous operation. It can bear the pressure of coal in 420m2 coal bunker, and can be started with full load under the drive of frequency conversion speed regulating motor.
5000t/h apron feeder in coal handling plant is mainly composed of driving device, chain plate device, sprocket shaft device, tension device, frame, support roller, bottom roller and bar pull and other components. The chain plate device is supported by a supporting wheel and a supporting wheel mounted on the frame, and the chain and the chain rail are properly meshed by adjusting the tensioning device. 5000t/h apron feeder in coal handling plant is the main part of the semi-moving crusher in the stope of Xinjiang open pit coal mine. It drives the sprocket shaft to rotate the power of the motor through the coupling and the reducer, and drives the chain plate to make continuous linear movement through the meshing of the sprocket teeth and the chain rail to transport the raw coal in the bin to the crusher.
The meshing times of the teeth are reduced by half, so that all the teeth are meshing once every two turns of the sprocket, which improves the service life of the sprocket and chain rail. Because the number of teeth increases, the transmission efficiency improves, the chain rail fluctuation amplitude decreases.
Selection of main components
1. Drive system, apron feeder in coal handling plant drive system, its main role is to provide power for the equipment, the motor speed will slow down to the speed required by the equipment to transport materials. It is composed of frequency conversion motor, hydraulic coupler, reducer, low speed end coupling and so on.
In order to increase the interchangeability of the driving part, the low-speed end shaft adopts a double shaft, the reducer is easy to install, such as one end of the driving device is damaged accidentally, the other end can continue to use, maintain production. In order to ensure the safety and stability of torque transmission, spline connection is used to make the whole drive system structure more compact.
Two 250kW frequency conversion speed regulating motors and reducer are fixed on the same frame, which is connected by hydraulic coupler, forming an independent component. In order to facilitate the equipment relocation and reduce the transverse size of the equipment, the reducer of the transmission parts adopts bevel gear reducer. The function of stepless speed regulation can be realized by frequency converter to meet the requirements of changing coal supply.
2. Chain plate device
2.1) Traction chain rail. The traction chain rail adopts Caterpillar Caterpillar track chain with 260mm pitch. It has the advantages of small pitch error, high strength and not easy to deform. And in the service period without lubrication, convenient daily operation and maintenance.
2.2) support roller. the supporting roller of the heavy type apron feeder is made of caterpillar d9 bulldozer supporting roller, which is mainly composed of a high strength and wear resistant shaft, a matching bearing seat and a high strength roller. the support roll spacing is 457mm, and it is closely arranged along the feeding length direction to ensure the smooth operation of the conveyor plate. support roller bearings can withstand large impact loads, double seal and full lubrication can reduce wear and prolong service life.
2.3) Bottom roller. The bottom roller of the apron feeder in coal handling plant is a special steel roller with a shaft sleeve, which is used to support the chain plate return. The spacing is 914mm.
The bottom roller is mounted on a short shaft which is bolted to the bottom plover. All components can be easily removed from the hole in the middle of the support beam.
2.4) in the chain. The sprocket of Heavy duty apron feeder in coal handling plant is split-type, made of wear-resistant high manganese alloy steel, with interchangeability. And the design of the use of double teeth, so that the sprocket every two turns of all teeth meshing once, so as to extend the sprocket life. The sprocket is connected to the hub by high-strength bolts for easy removal and replacement. Diameter of sprocket knot circle 1129mm. Under the joint action of front and rear sprocket, put an end to chain track deviation.
