| 摘要 |
PROBLEM TO BE SOLVED: To provide a lubricant injection monitoring device and the like which properly monitors whether or not a lubricant is injected to a bearing of an electric motor.SOLUTION: A lubricant injection monitoring device 1 includes: temperature sensors 11a, 11b for detecting temperature of bearings 74d, 74e for pivotally supporting a shaft member 74c of an electric motor 74; and lubricant injection monitoring means 12a for monitoring whether or not a lubricant is injected in the bearings 74d, 74e. The lubricant injection monitoring means 12a determines that the lubricant has been injected to the bearings 74d, 74e in the case where, after predetermined time has elapsed from drive start of the electric motor 74, the temperature of the bearings 74d, 74e detected by the temperature sensors 11a, 11b increases from the temperature at the elapse time and then changes to drop during drive of the electric motor 74.SELECTED DRAWING: Figure 2 |
