2 results about "Mechanical failure" patented technology

The invention discloses a GIS mechanical fault diagnosis method based on mechanical state signal analysis, and relates to the technical field of power equipment monitoring, and the method comprises the steps: collecting a vibration signal of GIS equipment in a running state; performing noise reduction processing on the acquired vibration signal by using a pole symmetry mode decomposition (ESMD) method and a relative entropy method; extracting a feature vector contained in the signal by using Hilbert transformation; performing attribute reduction on the feature vectors by using a rough set theory and establishing a diagnosis decision table; and establishing a three-layer forward neural network fault diagnosis model according to the diagnosis characteristic decision table. Compared with a traditional method, the method can be applied to intelligent diagnosis of different types of mechanical faults of the GIS device, and has the advantages of being good in real-time performance and high in diagnosis accuracy.

The invention discloses a movable-type and batch-type automatic fertilizer distributor capable of preparing fertilizer quantitatively in a field. The movable-type and batch-type automatic fertilizer distributor is composed of a mixing and stirring tank, a walking device, an automatic fertilizer applicator and a fertilizing pipe, the mixing and stirring tank is installed on the walking device, the automatic fertilizer applicator is installed on the portion, located at the lower end of a discharging opening of the mixing and stirring tank, of the walking device, the lower end of the automatic fertilizer applicator is connected with the fertilizing pipe, the front portion, located at the bottom of the walking device, of the fertilizing pipe is provided with a fertilizing plough, the rear portion of the fertilizing pipe is provided with a folding plough, and a range finder is installed in the inner side of the walking wheel of the walking device. The movable-type and batch-type automatic fertilizer distributor capable of preparing fertilizer quantitatively in the field has the advantages that the structure is simple, the design is scientific and reasonable, the mechanical failure is few, the energy consumption is low, the occupation area is small, the operation is simple and convenient, and the movement is flexible. By means of manual quantitative feeding and discharging from the discharging opening, fertilizer enters fertilizer distributor, the fertilizing is even, the centralization and mechanized process of the agricultural industry is improved, the labor strength is greatly lowered, the labor efficiency is improved, and the cost is lowered.