Radial sliding bearing with self-adaptive oil retaining devices

Abstract

The invention discloses a radial sliding bearing with self-adaptive oil retaining devices. The radial sliding bearing with the adaptive oil retaining devices comprises a lower half of the radial sliding bearing formed by a lower bearing seat and a lower bearing, and an upper half of the radial sliding bearing formed by an upper bearing seat and an upper bearing; two oil inlets are formed in the lower half and the upper half; the two self-adaptive oil retaining devices are separately arranged the upstream sides of the two oil inlets; each self-adaptive oil retaining device consists of an oil retaining block, a spring and an adjusting screw; the extending ends of the oil retaining blocks are provided with small inclined plane structures; wedge-shaped convergence gaps are formed between the oil retaining blocks and a shaft neck along the rotating direction of the shaft neck; one ends of the springs are pressed on the extending ends of the oil retaining blocks; and the other ends of the springs are connected with the adjusting screws in a fitting mode. By utilizing the dynamic balance formed by the oil film force of a hydrodynamic pressure effect and the elastic force of the springs, the distance between the oil retaining blocks and the shaft neck is adjusted in real time so that the distance between the oil retaining blocks and the shaft neck can be self-adaptive and kept to be arelatively stable value; and according to the radial sliding bearing, the adaptability of the oil retaining devices is good, the oil retaining effect is stable, and the temperature of lubricating oilin the radial sliding bearing is obviously reduced.

Description

technical field [0001] The invention relates to the technical field of sliding bearings, in particular to a radial sliding bearing with an adaptive oil retaining device. Background technique [0002] As one of the main supporting methods for rotors, sliding bearings are widely used in engineering fields. Compared with rolling bearings, sliding bearings have obvious advantages such as large load-carrying capacity, strong impact resistance and good damping characteristics. When the sliding bearing is working, if sufficient lubricating oil supply can be ensured so that the sliding surfaces are separated by lubricating oil without direct contact, friction loss and surface wear can be greatly reduced, and even wear can be eliminated; The lubricating oil film has a certain vibration-absorbing ability, which is very beneficial to improving the stability and precision of the rotor operation. [0003] Radial sliding bearings are an important type of sliding bearings, and they are al...

AI Technical Summary

Problems solved by technology

Traditional oil retaining devices generally have problems such as poor adaptability and unstable oil retaining effect, which seriously restrict the application of radial sliding bearings under severe working conditions such as high speed and heavy load, and become a problem that must be solved in the promotion of radial sliding bearings. question

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