[Problem] In a reduction and reversing gear unit in which hydraulic oil is supplied to a generator motor or the like as cooling oil by a hydraulic pump driven by an electric motor, which is separate from the generator motor, a problem of a noise generated by fully driving the hydraulic pump and the electric motor at all time is solved by assuming a high hydraulic oil temperature when a maximum load acts on the generator motor.[Solution] A reduction and reversing gear unit of the present invention includes an oil cooler disposed in a cooling oil passage that supplies hydraulic oil from an oil tank to a generator motor as cooling oil, a refrigerant pump disposed in a refrigerant piping caused to communicate with the oil cooler, an electric motor that drives the refrigerant pump, and a control unit that controls drive of the electric motor such that a discharge amount of the refrigerant pump is changed in accordance with a load detection value It of a load detection unit that detects a load acting on the generator motor.
REDUCTION AND REVERSING GEAR UNIT
2024-01-04
Patent
Electronic Resource
English
Reintjes: Two-speed-reversing-reduction gear brings many advantages
British Library Online Contents | 1996
Reintjes: Two-speed-reversing-reduction gear brings many advantages
Online Contents | 1996