A kind of oil leaf bearing

Abstract

The invention discloses an oil leaf bearing, which comprises a bearing body, Ujin tiles and Ujin tile supporting sliders, the Ujin tiles are poured on the Ujin tile supporting sliders, and the profile line of the working surface is a leaf shape or a wedge shape; The bearing body is a ring-shaped structure, and its inner wall is provided with a plurality of circumferentially distributed radial bottomed chutes, and each chute is equipped with a Ujin tile supporting slider that has been casted with Ujin tiles, which can slide in the chute, slide The Wujin tile on the block faces the center of the bearing circle. There are screw holes and fastening bolts on the back of the slider. There are corresponding bolt holes at the bottom of the chute of the bearing body. The fastening bolts go through the bolt holes and are screwed into the slider. The screw hole on the back is used to fix the slider handle tightly on the bearing body, and an adjusting gasket is added at the bottom of the chute. The Wujin tile and the bearing body of the present invention have a separate structure, and only the profile accuracy is considered during processing, and the gap size accuracy is not considered, which reduces the difficulty of processing; it can be replaced or repaired after local wear and tear, reducing operating costs; there are many bearing support surfaces, improving The stability of the rotor operation.

Description

technical field [0001] The invention relates to a bearing, in particular to an oil leaf bearing. Background technique [0002] Main shaft bearings of large high-speed rotating machines such as steam turbines usually use oil leaf bearings, such as Figure 1~4 As shown, the bearing is composed of a bearing body 1 and a black tile 2, and the black tile 2 is cast in the bearing body 1. There is a gap s between the Wujin tile 2 and the main shaft 3. When the main shaft 3 rotates, the gap s is filled with lubricating oil to form an oil film, which avoids friction between the main shaft 3 and the Wujin tile 2, and takes away the heat to play a lubricating role. . The inner peripheral surface of Wujin tile 2 is processed into 3 or 4 working curved surfaces along the circumferential direction. There are two types of curved surface lines, specifically: one is a circular arc line, and the main shaft 3 can form an oil film when it is rotated forward or reversed, which is called an oil...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to design an adjustable oil vane bearing to solve the above-mentioned disadvantages brought by the existing oil vane bearing to processing, disassembly and maintenance, as well as poor economy and poor stability of the bearing system.

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