Lubricating oil self-circulating sliding bearing device

Abstract

The invention discloses a lubricating oil self-circulation type sliding bearing device. The device is used for supporting a main shaft in the radial direction, the sliding bearing device comprises a shaft neck sleeve and a bearing pedestal, the shaft neck sleeve is arranged on the main shaft in a sleeving manner and wrapped by the bearing pedestal, the bearing pedestal is in a split opposite-openform, and the bearing pedestal comprises an upper bearing pedestal body and a lower bearing pedestal body. The upper bearing pedestal body and the lower bearing pedestal body are connected through a fastener, and the shaft neck sleeve and the main shaft are in tight fit or transmission connection. An upper bushing surface is arranged on the inner surface of the side, facing the lower bearing pedestal body, of the upper bearing pedestal body, a lower bushing surface is arranged at the side, facing the upper bearing pedestal body, of the lower bearing pedestal body, the shaft neck sleeve comprises flanges arranged at the two ends of the sleeve, and the upper bushing surface and the lower bushing surface are two parts of the same cylindrical surface and jointly wrap the part between the flanges on the shaft neck sleeve. The flanges abut against the two end faces of the bearing pedestal, oil grooves are formed in the upper bushing surface and the lower bushing surface respectively, the oilgrooves are annular with the main shaft as the axis, and oil holes are formed in the upper bearing pedestal body and connected with the groove bottoms of the oil grooves and the outer surface of theupper pedestal body.

Description

technical field [0001] The invention relates to the field of sliding bearings, in particular to a lubricating oil self-circulating sliding bearing device. Background technique [0002] Sliding bearings are a kind of bearings that work under sliding friction. Compared with rolling bearings, they can bear a larger load. When the bearing precision is high, the bearings work smoothly, reliably and without noise. Sliding bearings are generally used in high-speed heavy-duty, Light load and other extreme occasions. [0003] In the prior art, sliding bearings generally use a monolithic structure, and although lubricating oil is injected on the friction surface, the heat generated after friction cannot be handled well. Sometimes cooling water is directly used to cool the bearing seat, and the friction surface The heat is transferred to the outer surface of the bearing housing through heat conduction, which requires a complex cooling water structure. In the prior art, the lubricatin...

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Problems solved by technology

[0003] In the prior art, sliding bearings generally use a monolithic structure, and although lubricating oil is injected on the friction surface, the heat generated after friction cannot be handled well. Sometimes cooling water is directly used to cool the bearing seat, and the friction surface The heat is transferred to the outer surface of the bearing seat through heat conduction, which requires a complex cooling water structure

In the prior art, the lubricating oil of sliding bearings is also applied unevenly on the friction surface. The oil is injected into the contact surface through an oil groove and an oil injection hole, and most of it can only be filled to the area near the oil groove, which cannot ensure full coverage of the friction surface. , which may lead to greater frictional heat and severe wear

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