Lubricating structure and mechanical lubricating device having same

Abstract

The invention provides a lubricating structure and a sealing structure with the same. The lubricating structure comprises an annular lubricating end face. The annular lubricating end face comprises acircular first converging area, a circular dam area and a circular second converging area in sequence in the direction towards the center. The first converging area and the second converging area areeach circumferentially arranged around the central point of the lubricating end face. The first converging area is provided with a plurality of first spiral grooves extending from the inner circumferential side of the first converging area to the outer circumferential side, and the first spiral grooves are circumferentially arranged around the center of the first converging area; and / or, the second converging area is provided with a plurality of second spiral grooves extending from the outer circumferential side of the second converging area to the inner circumferential side, and the second spiral grooves are circumferentially arranged around the center of the second converging area. According to the lubricating structure, under the high load, high speed or extreme once oiling and oil lacking conditions, the high oil storage capacity can be kept, and the direct contact between the end faces of a friction pair is reduced.

Description

technical field [0001] The application belongs to the technical field of mechanical lubrication, and in particular relates to a lubricating structure and a mechanical lubricating device having the same. Background technique [0002] At present, the rotary fluid lubricated end face is widely used in various industrial occasions as a good lubricating and mechanical lubricating structure. [0003] However, the oil film pressure on the rotating lubricating end surface in the current prior art is relatively small, and under heavy load, high speed and pressure or various complex working conditions, the oil film bearing capacity will be small or the thickness of the oil film will become thinner. Furthermore, the contact between the end faces causes wear and leads to failure of the lubricating end face; and the oil storage capacity of the rotating lubricating end face in the prior art is poor, and the oil film ruptures or the oil film becomes thinner under high load and high speed c...

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Problems solved by technology

[0003] However, the oil film pressure on the rotating lubricating end surface in the current prior art is relatively small, and under heavy load, high speed and pressure or various complex working conditions, the oil film bearing capacity will be small or the thickness of the oil film will become thinner. Furthermore, the contact between the end faces causes wear and leads to failure of the lubricating end face; and the oil storage capacity of the rotating lubricating end face in the prior art is poor, and the oil film ruptures or the oil film becomes thinner under high load and high speed conditions, resulting in end face wear;

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