Air-cooled intermediate bearing

Abstract

The invention relates to an air-cooled intermediate bearing. The air-cooled intermediate bearing comprises a bearing seat, an upper bearing bush, a lower bearing bush and a bearing cap. The upper bearing bush and the lower bearing bush clamp a shaft, are supported on the bearing seat and are covered with the bearing cap. The two sides of the upper bearing bush and the two sides of the lower bearing bush are connected with outer oil tanks correspondingly. Each outer oil tank comprises an upper oil tank body, a lower oil tank body, an upper side cover, a lower side cover, oil throwers, an oil collection box and an oil inlet pipeline, wherein the upper oil tank body and the lower oil tank body are connected to the outer side of the upper bearing bush and the outer side of the lower bearing bush and are combined and connected into a whole through bolts; the upper side cover and the lower side cover are combined and connected into a whole through bolts and arranged at the outer end of the upper oil tank body and the outer end of the lower oil tank body in a sealing mode correspondingly, a plurality of cooling fins are evenly distributed on the outer side of the upper side cover in the circumferential direction, and a plurality of cooling fins are evenly distributed on the outer side of the lower side cover in the circumferential direction; the oil throwers are connected to the shaft in a penetrating mode and arranged in the upper oil tank body and the lower oil tank body correspondingly; the oil collection box is correspondingly arranged above the oil throwers and connected to the oil inlet pipeline; and the oil inlet pipeline is connected to the inner wall of the upper oil tank body or the outer wall of the upper bearing bush. A lubricating channel is formed in the upper bearing bush, the two ends of the lubricating channel communicate with the oil inlet pipelines of the two outer oil tanks correspondingly, and a lubricating cavity is formed in the middle of the lubricating channel and communicates with a gap between the upper bearing bush and the shaft. Supporting and lubricating loops which integrally communicate with each other are arranged on the supporting face between the lower bearing bush and the bearing seat and the covering face between the upper bearing bush and the bearing cap correspondingly and communicate with the lubricating cavity.

Description

technical field [0001] The invention relates to a bearing, in particular to an air-cooled intermediate bearing. Background technique [0002] The sliding type intermediate bearing of the ship shafting is one of the important auxiliary equipment of the shafting. It is used to support the weight of each intermediate shaft section and coupling and the radial load generated when the shafting rotates, so as to ensure the normal operation of the shafting. The existing intermediate bearing bushes have the following disadvantages: 1. The outer back and the inner cavity of the housing are supported by a cylindrical surface, which has no centering function. After the shaft system is lengthened, partial wear is prone to occur; 2. The cooling method of the existing intermediate bearing is bearing The inner cavity of the seat has its own water cavity. Due to the thick wall of the bearing shell and the poor heat conduction effect, in order to meet the cooling effect of the oil temperature...

AI Technical Summary

Problems solved by technology

The existing intermediate bearing bushes have the following disadvantages: 1. The outer back and the inner cavity of the housing are supported by a cylindrical surface, which has no centering function. After the shaft system is lengthened, partial wear is prone to occur; 2. The cooling method of the existing intermediate bearing is bearing The inner cavity of the seat has its own water cavity. Due to the thick wall of the bearing shell and the poor heat conduction effect, in order to meet the cooling effect of the oil temperature and the tile temperature, the cooling water flow is very large. The shafting length of super large ships is up to 100 meters. A large number of intermediate bearings need to be installed, and the water-cooled method of intermediate bearings will bring intricate piping systems to the cabin, which is a huge test for the design of the ship system and seriously affects the hydropower resources used by the ship.

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