Lubricating oil self-circulating system of bearing box for pump

Abstract

The invention discloses a lubricating oil self-circulating system of a bearing box for a pump. The lubricating oil self-circulating system comprises the bearing box, wherein bearings are mounted inside the bearing box; the bearings are connected with a pump shaft through a shaft sleeve in a close fit manner; the upper end of the pump shaft extends out of a box cover of the bearing box, and the lower end of the pump shaft extends out of a bottom cover of the bearing box; in the bearing box, an oil storage cavity is formed in a cavity between the lower end surfaces of the bearings and the bottom cover; an oil discharging channel is formed inside the bottom cover; an oil return channel is formed inside the top cover; an oil inlet of the oil discharging channel faces to the circumferential surface of the pump shaft; the lower end of the shaft sleeve downwards extends out of the bottom of the oil inlet of the oil discharging channel; an oil conveying slot is formed in the shaft sleeve wall at the lower end of the shaft sleeve; with rotation of the pump shaft, the oil conveying slot in the shaft sleeve can be aligned to the oil inlet of the oil discharging channel; lubricating oil in the oil storage cavity is thrown into the oil discharging channel; with rotation of the pump shaft, the shaft sleeve wall of the shaft sleeve can close the oil inlet to retain conveying pressure; and the oil discharging channel communicates with the oil return channel through an oil return pipe. According to the lubricating oil self-circulating system of the bearing box for the pump, the lubricating oil is used for cyclically lubricate the bearings and absorbing heat, so that the bearing heat dissipation efficiency is improved.

Description

technical field [0001] The invention relates to a pump bearing box, in particular to a self-circulating system capable of lubricating oil. Background technique [0002] The bearing box is a box part that supports and lubricates the bearing, and at the same time bears the axial and radial forces generated by the equipment during operation. In equipment with a rotating shaft, the shaft is generally supported by bearings for rotation, and the bearings are installed in a bearing box, which is filled with lubricating oil, so that the bearings are lubricated during work. existing technologies such as figure 1 As shown, the oil storage chamber in the pump bearing housing is a cavity located below the bearing, and the bearing 1b is lubricated by injecting lubricating oil that can cover the bearing 1b into the oil storage chamber 1c. However, since the temperature of the bearing 1b increases with the rotation of the pump shaft 1a, the bearing 1b not only needs to be lubricated, but...

AI Technical Summary

Problems solved by technology

[0003] Aiming at the deficiencies of the above-mentioned prior art, the present invention provides a lubricating oil self-circulation system for the pump bearing box, which solves the technical problem of low heat d

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