Lobe bearing

Abstract

The invention discloses a lobe bearing, which comprises a bearing body, white metal pads and white metal pad supporting slide blocks, wherein the white metal pads are poured on the white metal pad supporting slide blocks, and the working face molded line of the bearing is of lobe type or wedge type; the bearing body is of an annular structure, and a plurality of circumferentially distributed radial chutes with bottoms are arranged on the inner wall of the bearing body; each white metal pad supporting slide block poured with the white metal pad is arranged in each corresponding chute and can slide in the chute, and the white metal pad on the slide block faces the center of a circle of the bearing; screw holes and fastening bolts are formed in the back of the slide block, and bolt holes corresponding to the screw holes and the fastening bolts are formed in the bottom of the chute of the bearing body; the fastening bolts penetrate through the bolt holes and are screwed into the screw holes in the back of the slide block, so that the slide block is tightly fixed on the bearing body; an adjusting gasket is arranged at the bottom of the chute. The white metal pad sand the bearing body are of split structures, and are processed by only considering the precision of molded line without considering the dimensional precision of a gap, so that the processing difficulty is reduced; the bearing can be replaced or repaired after partially worn, so that the operating cost is reduced; the bearing has multiple supporting surfaces, so that the stability of rotor operation is improved.

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.

Images