CN219692019U - Powder metallurgy oil-retaining bearing capable of storing oil - Google Patents

Abstract

The utility model relates to the technical field of powder metallurgy oil-containing bearings, and discloses a powder metallurgy oil-containing bearing capable of storing oil, which comprises a bearing outer ring and a bearing inner ring, wherein oil storage grooves are formed in the bearing outer ring and the bearing inner ring, oil storage pipes are fixedly connected in the oil storage grooves, oil inlet holes are formed in the tops of the oil storage pipes, the oil inlet holes are communicated with the oil storage pipes, oil seepage ports are formed in the bottoms of the oil storage pipes, cavities are formed in the bottoms of the oil seepage ports, the oil storage pipes, the oil seepage ports and the cavities are communicated, sponge is filled in the cavities, and oil outlets are formed in the bearing outer ring and the side walls of the bearing inner ring; the powder metallurgy oil-retaining bearing capable of storing oil is characterized in that the oil is injected into the oil storage pipe through the oil inlet by using the injector, the lubricating oil in the oil storage pipe can enter the sponge in the cavity through the oil seepage port, and the bearing can always maintain a lubrication state through the oil outlet formed in the side wall of the outer ring and the inner ring of the bearing.

Description

Powder metallurgy oil-retaining bearing capable of storing oil

Technical Field

The utility model relates to the technical field of powder metallurgy oil-retaining bearings, in particular to a powder metallurgy oil-retaining bearing capable of storing oil.

Background

At present, a steel sleeve or copper sleeve bearing is used at the connecting part of domestic engineering machinery, when oil is lacked in the use process, the shaft and the sleeve are easy to become dry friction, so that the surfaces of the shaft and the sleeve are worn in a tearing way, the shaft and the sleeve are damaged, and even the mounting base holes are seriously damaged, so that the shaft and the sleeve become elliptical, the mounting base body must be repaired at the same time, the cost is greatly increased, the oil bearing, namely the porous bearing, is gradually replaced by the oil bearing, takes metal powder as a main raw material, is a sintered body manufactured by a powder metallurgy method, is porous, has the technical advantages of freely adjusting the number, the size, the shape, the distribution and the like of pores in the manufacturing process, and is used in a self-oil-supply state by utilizing the porosity of the sintered body to be impregnated with 10% -40% (volume fraction) lubricating oil. With the continuous development of the oil-retaining bearing industry, more industries and enterprises apply the oil-retaining bearing, and a large number of enterprises add the oil-retaining bearing industry, however, the oil-retaining rate of the existing oil-retaining bearing has a certain limit, and the oil is easy to be damaged due to oil shortage when the oil-retaining bearing is used for a long time, the surface hardness is generally not high, and the service life is short.

In the prior art, as the patent number CN205331224U proposes a powder metallurgy oil-retaining bearing, this technical scheme discloses a powder metallurgy oil-retaining bearing, including the bearing body of making by porous material, set up respectively in the interior oil storage tank of bearing body, surface and outer oil storage tank, interior oil storage tank and outer oil storage tank between set up at least one inlet port. Compared with the prior art, the powder metallurgy oil-containing bearing has high oil content, and the inner and outer oil storage tanks can store a large amount of lubricating oil, so that the powder metallurgy oil-containing bearing has good lubricating effect, high surface hardness and durability.

However, the above technical solution has the following disadvantages:

in the existing powder metallurgy oil-containing bearing, although an oil storage tank is used for storing oil, the oil storage capacity is still insufficient, and after the lubricating oil in the oil storage tank is used up, the lubricating oil of the bearing rapidly drops, so that the working state of the bearing is poor.

Disclosure of Invention

Aiming at the defects of the prior art, the utility model provides the powder metallurgy oil-retaining bearing which is capable of storing oil so as to at least solve one of the problems of the background art, and the powder metallurgy oil-retaining bearing is more convenient to use.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a but powder metallurgy oiliness bearing of oil storage, including bearing outer lane and bearing inner circle, the oil storage tank has all been seted up to the inside of bearing outer lane and bearing inner circle, the inside equal fixedly connected with oil storage pipe of oil storage tank, the inlet port has been seted up at oil storage pipe's top, the inlet port is linked together with the oil storage pipe and is set up, oil drain port has been seted up to oil storage pipe's bottom, the cavity has been seted up to oil drain port's bottom, oil storage pipe, oil drain port and cavity are linked together and are set up, the inside packing of cavity has the sponge, the oil-out has all been seted up to the lateral wall of bearing outer lane and bearing inner circle.

Preferably, the bearing outer ring and the bearing inner ring which are positioned at the top of the oil inlet are provided with square grooves, and the square grooves are rotationally connected with sealing blocks.

Preferably, the number of the oil seepage ports is four, and the oil seepage ports are distributed in the bearing outer ring and the bearing inner ring in a circumferential array at equal intervals.

Preferably, the oil absorption block is fixedly connected in the oil seepage port.

Preferably, the number of the oil outlets is a plurality, and the oil outlets are distributed on the side walls of the bearing outer ring and the bearing inner ring in a circumferential array at equal intervals.

Preferably, the two sides of the sealing block are fixedly connected with bulges, and clamping grooves matched with the bulges are formed in the two sides of the inner wall of the square groove.

Preferably, a prying groove is formed between one side of the sealing block and one side of the inner wall of the square groove.

Compared with the prior art, the utility model has the following beneficial effects:

this kind of but powder metallurgy oiliness bearing of oil storage, this bearing is before using, inject the oil storage pipe with the syringe with lubricating oil through the inlet port, the bearing is in the use, the inside lubricating oil of oil storage pipe can enter into the inside sponge of cavity through the seepage oil mouth, the oil-out of seting up through bearing outer lane and bearing inner race lateral wall can make the bearing remain lubricated state throughout, the benefit of setting like this lies in, through the oil storage pipe of bearing outer lane and the inside setting of bearing inner race, can make the inside more lubricating oil that can store of this bearing, and can effectively reduce the volatilization of lubricating oil, thereby make this bearing can remain better operating condition throughout.

Drawings

FIG. 1 is a schematic perspective view of the whole structure of the present utility model;

FIG. 2 is a schematic view of a partial cross-sectional structure of the present utility model;

FIG. 3 is an enlarged schematic view of the structure of FIG. 1A according to the present utility model;

fig. 4 is an enlarged schematic view of the structure of fig. 2B according to the present utility model.

In the figure: 1. a bearing outer ring; 2. a bearing inner ring; 3. an oil storage tank; 4. an oil storage pipe; 5. an oil seepage port; 6. a cavity; 7. a sponge; 8. an oil outlet; 9. an oil inlet hole; 10. an oil suction block; 11. a square groove; 12. a sealing block; 13. a protrusion; 14. a clamping groove; 15. and prying the groove.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1-4, a powder metallurgy oil-containing bearing capable of storing oil comprises a bearing outer ring 1 and a bearing inner ring 2, wherein oil storage grooves 3 are formed in the bearing outer ring 1 and the bearing inner ring 2, oil storage pipes 4 are fixedly connected in the oil storage grooves 3, oil inlet holes 9 are formed in the tops of the oil storage pipes 4, the oil inlet holes 9 are communicated with the oil storage pipes 4, oil seepage ports 5 are formed in the bottoms of the oil storage pipes 4, cavities 6 are formed in the bottoms of the oil seepage ports 5, the oil storage pipes 4, the oil seepage ports 5 and the cavities 6 are communicated, sponge 7 is filled in the cavities 6, and oil outlets 8 are formed in the side walls of the bearing outer ring 1 and the bearing inner ring 2.

Specific working principle and implementation mode: according to the prior art of the patent number CN205331224U, the existing powder metallurgy oil-containing bearing can be obtained, although the oil storage tank 3 is used for storing oil, the oil storage capacity is still insufficient, and after the lubricating oil in the oil storage tank 3 is used up, the lubricating oil of the bearing drops sharply, so that the working state of the bearing is poor; accordingly, there are technical problems mentioned in the background art; the scheme can solve the problems; before the bearing is used, the oil is injected into the oil storage pipe 4 through the oil inlet 9 by using the injector, in the use process of the bearing, the lubricating oil in the oil storage pipe 4 can enter the sponge 7 in the cavity 6 through the oil seepage port 5, the bearing can always keep a lubricating state through the oil outlet 8 formed in the side wall of the bearing outer ring 1 and the side wall of the bearing inner ring 2, and the bearing has the advantages that more lubricating oil can be stored in the bearing through the oil storage pipe 4 arranged in the bearing outer ring 1 and the bearing inner ring 2, volatilization of the lubricating oil can be effectively reduced, and accordingly the bearing can always keep a good working state.

As shown in fig. 1 and 3, square grooves 11 are formed in the bearing outer ring 1 and the bearing inner ring 2 which are positioned at the top of the oil inlet hole 9, sealing blocks 12 are rotationally connected in the square grooves 11, and the sealing blocks 12 are rotationally connected in the square grooves 11 and the square grooves 11 which are formed in the bearing outer ring 1 and the bearing inner ring 2, and the sealing blocks 12 can be made of rubber materials, and due to the elasticity and the tightness of the rubber materials, lubricating oil in the oil storage pipe 4 can be effectively reduced to flow out through the oil inlet hole 9 by arranging the sealing blocks 12, so that the waste of the lubricating oil is reduced.

As shown in fig. 2, the number of the oil seepage ports 5 is four, and the oil seepage ports 5 are distributed in the bearing outer ring 1 and the bearing inner ring 2 at equal intervals in a circumferential array, and the oil absorption efficiency of the sponge 7 in the cavity 6 to the lubricating oil in the oil storage pipe 4 can be increased by setting the number of the oil seepage ports 5 to four, so that the lubricating oil in the sponge 7 is more uniform.

As shown in fig. 2, the oil absorption block 10 is fixedly connected to the inside of the oil seepage port 5, and the sponge 7 in the cavity 6 can absorb the lubricating oil in the oil storage pipe 4 through the oil absorption block 10 by virtue of the oil absorption block 10, so that the process of the lubricating oil entering the sponge 7 is more stable and uniform, and excessive waste is avoided.

As shown in fig. 1, the number of oil outlets 8 is multiple, and the oil outlets 8 are distributed on the side walls of the bearing outer ring 1 and the bearing inner ring 2 at equal intervals in a circumferential array, and the number of the oil outlets 8 is multiple, so that lubricating oil on the sponge 7 in the cavity 6 seeps out to the side walls of the bearing through the oil outlets 8, and further the lubricating oil distributed on the bearing is uniform, and the lubricating effect of the bearing is improved.

As shown in fig. 2 and fig. 4, the two sides of the sealing block 12 are fixedly connected with the protrusions 13, the two sides of the inner wall of the square groove 11 are provided with the clamping grooves 14 matched with the protrusions 13, the protrusions 13 fixedly connected with the two sides of the sealing block 12 and the clamping grooves 14 formed in the inner wall of the square groove 11 are used, when a worker finishes adding lubricating oil into the oil storage pipe 4 by using the injector, the protrusions 13 are clamped with the clamping grooves 14 by pressing the sealing block 12, so that the connection between the sealing block 12 and the bearing is more stable, and the waste caused by the outflow of the lubricating oil through the oil inlet 9 in the operation process of the bearing is further reduced.

As shown in fig. 1 and 3, a prying groove 15 is formed between one side of the sealing block 12 and one side of the inner wall of the square groove 11, when a worker needs to add lubricating oil into the oil storage pipe 4, the sealing block 12 can be pried open by inserting a tool such as a screwdriver or the like into the prying groove 15, and at this moment, the worker can use an injector to add lubricating oil into the oil storage pipe 4 through the oil inlet 9, so that the worker is convenient to add lubricating oil.

The foregoing description is only a preferred embodiment of the present utility model, and the present utility model is not limited thereto, but it is to be understood that modifications and equivalents of some of the technical features described in the foregoing embodiments may be made by those skilled in the art, although the present utility model has been described in detail with reference to the foregoing embodiments. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims (7)

1. The utility model provides a but powder metallurgy oiliness bearing of oil storage, including bearing outer lane (1) and bearing inner race (2), its characterized in that, oil storage tank (3) have all been seted up to the inside of bearing outer lane (1) and bearing inner race (2), oil storage tank (3) inside all fixedly connected with oil storage pipe (4), inlet port (9) have been seted up at the top of oil storage pipe (4), inlet port (9) are linked together with oil storage pipe (4) and set up, oil drain port (5) have been seted up to the bottom of oil storage pipe (4), cavity (6) have been seted up to the bottom of oil drain port (5), oil storage pipe (4), oil drain port (5) and cavity (6) are linked together and are set up, the intussuseption of cavity (6) is filled with sponge (7), oil-out (8) have all been seted up to the lateral wall of bearing outer lane (1) and bearing inner race (2).

2. A storable powder metallurgy oil impregnated bearing according to claim 1, wherein: square grooves (11) are formed in the outer ring (1) and the inner ring (2) of the bearing at the top of the oil inlet hole (9), and sealing blocks (12) are rotationally connected to the square grooves (11).

3. A storable powder metallurgy oil impregnated bearing according to claim 1, wherein: the number of the oil seepage ports (5) is four, and the oil seepage ports are distributed in the bearing outer ring (1) and the bearing inner ring (2) in a circumferential array at equal intervals.

4. A storable powder metallurgy oil impregnated bearing according to claim 1, wherein: an oil suction block (10) is fixedly connected in the oil seepage port (5).

5. A storable powder metallurgy oil impregnated bearing according to claim 1, wherein: the number of the oil outlets (8) is a plurality, and the oil outlets are distributed on the side walls of the bearing outer ring (1) and the bearing inner ring (2) in a circumferential array at equal intervals.

6. A storable powder metallurgy oil impregnated bearing according to claim 2, wherein: the two sides of the sealing block (12) are fixedly connected with the bulges (13), and the two sides of the inner wall of the square groove (11) are provided with clamping grooves (14) matched with the bulges (13).

7. A storable powder metallurgy oil impregnated bearing according to claim 2, wherein: a prying groove (15) is formed between one side of the sealing block (12) and one side of the inner wall of the square groove (11).