Motor fault monitoring and alarming device with good dustproof effect

The invention provides a motor fault monitoring and alarming device with a good dustproof effect, and relates to the technical field of motors. The motor fault monitoring and alarming device comprisesa dustproof box wrapping a motor; a hollow air cooling cover is arranged outside a heat dissipation gear shell of the motor; a nozzle blowing towards the length direction of a gear groove of the heatdissipation gear shell is arranged on the air cooling cover; a temperature sensor is arranged on the air cooling cover; the air cooling cover is connected with the inner end of the output shaft of the motor through a reciprocating rotation transmission mechanism, and the reciprocating rotation transmission mechanism converts one-way rotation of the motor into reciprocating rotation of the air cooling cover around the heat dissipation gear shell while keeping away from a motor mounting base; a vibration sensor and a temperature sensor are arranged in the dustproof box; the vibration sensor isconnected with a controller