The invention provides a bearing load real-time monitoring and
hydraulic pressure self-adaptive adjusting
system and method, and the
system comprises a
signal sensing unit which is used for collecting a
bearing vibration signal, a hydraulic
system pressure
signal and a main shaft rotating speed signal; and the
signal processing and calculating unit is connected with the signal sensing unit and is used for
processing the collected signals, estimating the bearing load based on a pre-trained soft measurement model and generating a
hydraulic control instruction. The dependence of traditional bearing load monitoring on an expensive
force sensor is broken through, and by integrating operation signals such as vibration,
hydraulic pressure and rotating speed which are easy to obtain, the bearing load monitoring precision is improved. According to the method, the incidence relation between signals and loads is established through off-line modeling, non-intrusive load real-
time estimation is achieved, meanwhile, feed-forward and feedback composite control is adopted,
hydraulic pressure is adjusted in a self-adaptive mode according to the estimated loads, traditional empirical fixed setting is replaced, monitoring, adjusting, early warning and maintenance prompting functions are integrated, and real-time monitoring is achieved. The technical problems that a traditional scheme is high in cost, blind in adjustment and dispersed in function are effectively solved.