Fulcrum-variable intelligent radial tilting pad sliding bearing device

Abstract

The invention discloses a fulcrum-variable intelligent radial tilting pad sliding bearing device, which comprises a state-adjustable radial tilting pad sliding bearing, a detection circuit, a control system and an execution unit, wherein the state-adjustable radial tilting pad sliding bearing consists of fulcrum-variable radial tilting pad blocks, support units and a bearing casing; in the detection circuit, high-precision vibration sensors are mounted near the radial tilting pad sliding bearing, and the output ends of the vibration sensors are connected with a control computer; the control system comprises the control computer, a piezoelectric ceramic driving power supply, a memory alloy control unit and a switch selective circuit unit; and the execution unit consists of a support ejector head, mechanically packaged piezoelectric ceramic, cushion blocks, an alveolate packaged memory alloy and hollow screw rods. According to the device, the position of a tilting pad block back support point and radial positions of the tilting pad blocks are adjusted by the control computer, the real-time adjustment can be conducted on the working state of the radial tilting pad sliding bearing, and requirements of various working conditions are met.

Description

technical field [0001] The invention belongs to the technical field of bearing devices, and relates to a sliding bearing device. Background technique [0002] Radial tilting pad sliding bearings rely on the wedge-shaped lubricating pressure oil film formed between two moving surfaces in relative motion to carry out radial load. This kind of bearing has the advantages of low frictional power consumption, stable operation, large load-carrying capacity, long life and little influence on the performance of the journal geometry, so it is widely used in large-scale rotary machinery. At present, sliding bearings are generally used in equipment such as large AC and DC motors, tubular hydroelectric generator sets, and large low-speed diesel generator sets. Sliding bearings in the traditional sense are designed based on one or several specific working conditions. However, during actual production and operation, the working conditions of sliding bearings may often need to be changed f...

AI Technical Summary

Problems solved by technology

Under the working conditions where the working conditions change within a certain range, the sliding bearing with a certain parameter often cannot meet its requirements. Therefore, the complex working conditions will cause the wear of the sliding bearing and shorten the life of the bearing, and cause burning of the bearing and shaft holding in the worst case. and other serious accidents, and once these core equipment are damaged, the corresponding production lines will be shut down, resulting in huge economic losses for related enterprises and society

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