CN203009363U - Bearing with bearing cage - Google Patents

Abstract

The utility model discloses a bearing with a bearing cage, belongs to bearings and solves the problem that a traditional bearing is poor in heat radiation. The bearing is a thrust bearing of a vertical pump, wherein an upper thrust bearing and a lower thrust bearing of the bearing are immersed in lubricating oil; four upward-inclined inclined holes are formed in thrust bearing blocks for supporting the upper thrust bearing and the lower thrust bearing; the bearing cage is arranged on the periphery of the lower thrust bearing; a main body part of the bearing cage is a round tube; the top of the round tube is fixedly arranged on a pump bearing body; the bottom of the round tube is an annular bottom surface; an inner hole of the bottom surface is sheathed in the periphery of an oil sealing drum of the pump; and a clearance is formed between the inner hole and the oil sealing drum. According to the structure, the lubricating oil upwards flows from the four inclined holes in the thrust bearings when the pump operates, and an oil-pressure low pressure area is generated at the clearance between the bearing cage and the oil sealing drum; and lubricating oil at the bearing cage and the lower thrust bearing and lubricating oil on the outer side of the bearing cage flow towards the low-pressure area to promote lubricating oil in an oil chamber to generate circular flowing, so that forced circular lubricated cooling is generated, and the heat radiating efficiency is increased.

Description

A kind of bearing with bearing cage

Technical field

The utility model relates to a kind of bearing, refers in particular to a kind of bearing with bearing cage.

Background technique

In water pump, the end thrust of vertical pump is born by thrust-bearing, and thrust-bearing as Bearing Temperature occurs, can cause bearing normally to use in the pump operation process.

At present, generally select the mode of oil bath that thrust-bearing is lubricated, as shown in Figure 1, in existing vertical pump thrust bearing, the up-thrust bearing 13 and the lower thrust-bearings 16 that are placed in pump bearing body 12 are to be immersed in lubricant oil, and the thrust metal 14 that supports upper and lower thrust-bearing is provided with 4 slope holes 15 on beginning to be tilted to from the bottom.When water pump rotated, pump shaft 17 drove thrust metals 14 and rotates, and due to the effect of centrifugal force, the lubricant oil 15 pairs of up-thrust bearings 13 of these 4 slope holes of can flowing through are forced to rinse lubricated.Due to the pump circulation of lubricant oil, but effectively lubricating up-thrust bearing 13, and the heat that up-thrust bearing 13 produces can be taken away.

But, be immersed in the lower thrust-bearing 16 in oil bath, what oil bath was played it is only lubrication, the heat of its generation can't be taken away, therefore, the heat that lower thrust-bearing 16 produces during pump operation is difficult to distribute, and can reduce like this working life of whole thrust-bearing.

In Fig. 1, the trend of direction of arrow signal lubricant oil; Mark 11 is for being placed in the oil sealing bucket of pump shaft 17 peripheries.

The model utility content

The purpose of this utility model is the problem that exists in order to overcome prior art, provides a kind of and can carry out up-thrust bearing coolingly, can carry out the cooling bearing with bearing cage to lower thrust-bearing again.

The purpose of this utility model is achieved through the following technical solutions:

A kind of bearing with bearing cage, described bearing are the thrust-bearings of vertical pump, and its up-thrust bearing and lower thrust-bearing are immersed in lubricant oil, and the thrust metal that supports upper and lower thrust-bearing is provided with 4 slope holes on beginning to be tilted to from the bottom, wherein:

The outer periphery of described lower thrust-bearing arranges a bearing cage, the main body of bearing cage is pipe, the pipe top is from the mounting edge that extends radially outwardly, mounting edge is provided with several bolts hole, be bolted on pump bearing body, the pipe bottom is circular bottom surface, and the inner hole sleeve of circular bottom surface is placed in the oil sealing bucket periphery of pump, between the endoporus of this circular bottom surface and oil sealing bucket, a gap is arranged.

The large 10-20mm of radius of the radius ratio lower thrust-bearing of described bearing cage.

Described gap is 5-10mm.

The beneficial effects of the utility model:

by structural improvement, when water pump operation, be that pump shaft is when being rotated operation, effect due to centrifugal force, lubricant oil can upwards flow from 4 slope holes on thrust-bearing, at this moment, gap location between bearing cage and oil sealing bucket can produce the low fuel pressure pressure area, the lubricant oil in the lubricant oil at bearing cage and lower thrust-bearing place and the bearing cage outside can flow to this low pressure area, can impel like this lubricant oil generation in oil pocket to circulate, produced compulsory circulating lubrication for lower thrust-bearing especially cooling, thereby improved the radiating efficiency of thrust-bearing, prevent that effectively bearing from affecting working life because of overheated.

For further illustrating above-mentioned purpose of the present utility model, structural feature and effect, below with reference to accompanying drawing, the utility model is elaborated.

Description of drawings

Fig. 1 is existing vertical pump thrust bearing schematic diagram;

Fig. 2 is the vertical pump thrust bearing schematic diagram with bearing cage of the present utility model.

Embodiment

Accompanying drawing below in conjunction with embodiment is elaborated to embodiment of the present utility model.

Referring to Fig. 2, bearing with bearing cage of the present utility model refers to the thrust-bearing of vertical pump, the up-thrust bearing 23 of vertical pump is immersed in lubricant oil with lower thrust-bearing 26, and the thrust metal 24 that supports upper and lower thrust-bearing is provided with 4 slope holes 25 on beginning to be tilted to from the bottom.

as shown in Figure 2: the utility model is that a bearing cage 28 is set in the outer periphery of lower thrust-bearing 26, the large 10-20mm of radius of the radius ratio lower thrust-bearing 26 of this bearing cage 28, the main body of bearing cage 28 is pipes, the pipe top is from the mounting edge that extends radially outwardly, mounting edge is provided with several bolts hole, be bolted on pump bearing body 22, the pipe bottom is circular bottom surface, the inner hole sleeve of circular bottom surface is placed in the periphery of the oil sealing bucket 21 of pump, one gap (gap is generally 5-10mm) is arranged between the endoporus of this circular bottom surface and oil sealing bucket 21, to guarantee that lubricant oil forms the loop.

In Fig. 2, the rear oil flow direction of bearing cage 28 is installed in direction of arrow signal.

In this structure, upper bearing (metal) 23 lubricated, cooling performance is constant, when water pump operation, when namely pump shaft 27 was rotated operation, due to the effect of centrifugal force, lubricant oil can upwards flow from 4 slope holes 25 on thrust-bearing.At this moment, the gap location between bearing cage 28 and oil sealing bucket 21 can produce the low fuel pressure pressure area.At this moment, the lubricant oil in the lubricant oil at bearing cage 28 and lower thrust-bearing 26 places and bearing cage 28 outsides can flow to this low pressure area.Impelling so the interior lubricant oil of oil pocket to produce circulates.Produced compulsory circulating lubrication for lower thrust-bearing 26 especially cooling.Prevent that effectively bearing from affecting working life because of overheated.

In addition, this bearing cage 28 is simple in structure, requires machining accuracy low, is convenient to processing, makes, and is practical.

Those of ordinary skill in the art will be appreciated that, above embodiment illustrates the purpose of this utility model, and be not with opposing restriction of the present utility model, as long as in essential scope of the present utility model, all will drop in the scope of claim of the present utility model the above embodiment's variation, modification.

Claims (3)

1. bearing with bearing cage, described bearing is the thrust-bearing of vertical pump, its up-thrust bearing and lower thrust-bearing are immersed in lubricant oil, and the thrust metal that supports upper and lower thrust-bearing is provided with 4 slope holes on beginning to be tilted to from the bottom, it is characterized in that:

The outer periphery of described lower thrust-bearing arranges a bearing cage, the main body of bearing cage is pipe, the pipe top is from the mounting edge that extends radially outwardly, mounting edge is provided with several bolts hole, be bolted on pump bearing body, the pipe bottom is circular bottom surface, and the inner hole sleeve of circular bottom surface is placed in the oil sealing bucket periphery of pump, between the endoporus of this circular bottom surface and oil sealing bucket, a gap is arranged.

2. the bearing with bearing cage as claimed in claim 1 is characterized in that:

The large 10-20mm of radius of the radius ratio lower thrust-bearing of described bearing cage.

3. the bearing with bearing cage as claimed in claim 1 is characterized in that:

Described gap is 5-10mm.

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