Electric Traction Coal Mining Machinery Shearer With Protection Function Of Electricity Leakage

MG850/2200-WD Electric Traction Coal Shearer

Machine Features:

This type of machine adopts multiple motors allocated laterally in general construction, regulated by the method of on-board AC conversion. The overall structure is using the way "3 section allocation". The bonded face of the middle section adopts the joint type of positioned by cylindrical pin, fastened by long abd short bolts. It’s main Characters are as listed below:

1.The main frame is disused, the machine body is composed by three sections which are left and right traction boxes and electrical control box, pin shaft location, high intensity bolts and hydraulic nut fastening is adopted in between, therefore the machine surface height is lowered, the machine length is shortened, it improves the coal shearer adaptability to the horizontal and vertical arcuation of the working surface conveyor.

2.Multiple operation points are available in the entire machine, the electrical control box is in the middle; control station at left and right end; remote device( charge free) on left and right side, operate the shearer for various actions. With close lock function of work surface conveyor. traction, cutting, breaking and pump motor can be started seperately.

3.With advanced displaying interface, the system parameters are displayed thoroughly and accurately; Real time display power, traction speed, traction currency, drum shearing height, bottom taking capacity and other parameters. By setting up, it can correct protection parameters and shield wrong actions.

4.With datas transmission function, datas displayed in the gateroad devices, can be transmitted to ground control center through mine monitor system, has the telecomuting interfaces which a modernized mine should obtain.

5.The shearer has the protection function of electricity leakage, over voltage, over currency and low voltage; The left and right cutting motos is with function of electricity leakage testing, tempreature monitoring, heat protection, overload protection and constant power automatically control.

6.Key components such as high pressure isolating switch, convertor, PLC, all signos sensor, height adjusted pump, sealing part, bearing, back flush filter are adopted the high quality imported parts, improve the reliablity of the entire machine.