Colliery Mechanical & Electrical Technology Articles

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1Study on Ultra-low Frequency Vibration Sensor1-3

2Practice and Prospect of Technological Transformation of Mine Hoisting System4-6

3Design of Cuboid Flameproof Enclosure7-9,13

4Vibration Causes and Vibration Monitoring and Fault Diagnosis of Main Fan for Coal Mine10-13

5Design of Safety Locking Control Device for Coal Pit-head Operating Tram14-15

6The Realization for Mine Network Metrological Monitoring System16-17,38

7Analysis of Factors Influence Characteristic Circle of Impedance Relay18-21

8A Control System of Belt Conveyer Based on Control Network22-24

9Dynamic Characteristic Test and Analysis of Brake Variable Displacement Pump25-26

10An Effective Way of Improving Supporting Capacity of Straight Cylindrical Involute Gear for Locomotives27-29,53

11Belt Breaking Mechanism of Steel Cord Belt Conveyor30-31,35

12Selection of Leakage Operation Resistance Values for Leakage Protection of Low-voltage Supplying System in Underground Coal Mine32-35

13Discussion on Scheme of Mobile Communication for Underground Coal Mine36-38

14Technique Achievement for Intrinsic Safety Studies of Complex Inductance Circuit under Different Frequency Characteristics39-40

15Improvement of Electric Control System for Main Shaft Hoist in Coal Mine41-42,40

16Excitation Fault Analysis of Synchronous Motor43-44

17Process Improvement of Milling for Rotor45-46

18An Improvement Scheme of 35kV Electric Network Composition47-49

19Methods of Adjusting Lift for Mine Drainage Pump49-50