Powder metallurgy oil bearing with honeycomb-shaped heat conduction hole channels

Abstract

The utility model relates to the technical field of oil-retaining bearings, and discloses a powder metallurgy oil-retaining bearing with honeycomb-shaped heat conduction hole channels, a plurality of heat conduction grooves are annularly arranged in an oil-retaining bearing body in a penetrating manner, a separation mechanism is arranged in the oil-retaining bearing body, and the separation mechanism comprises a first space ring, a second space ring and a third space ring, a second space ring is installed on the rear side of the first space ring, and a third space ring is installed on the front side of the first space ring. According to the separation mechanism, multiple layers of separation areas are formed through the first space ring, the second space ring and the third space ring, the primary separation effect on oil liquid can be achieved, multiple sets of separation plates are annularly and fixedly connected among the first space ring, the second space ring and the third space ring, multiple small separation areas can be formed, and therefore the secondary separation effect on the oil liquid is achieved; according to the oil-retaining bearing, oil is effectively prevented from seeping from the two ends, when the temperature is reduced, the oil stored in the multiple separated areas can be absorbed into the oil-retaining bearing body again, and the oil leakage phenomenon is greatly reduced.

Description

Technical Field

[0001] This utility model relates to the field of oil-impregnated bearing technology, specifically to a powder metallurgy oil-impregnated bearing with honeycomb-shaped heat-conducting channels. Background Technology

[0002] Powder metallurgy oil-impregnated bearings are widely used in mechanical transmission due to their self-lubricating properties, low noise, and cost advantages. Traditional bearings rely on the internal pores of the material to store lubricating oil, and the oil seeps out to form a lubricating film through frictional heat. However, under long-term operation in high-temperature environments, the viscosity of the oil decreases and its fluidity increases, making it easy to seep out from the bearing end face. This not only leads to lubrication failure and accelerated wear, but may also pollute the equipment environment and increase maintenance costs. Utility Model Content

[0003] The purpose of this invention is to provide a powder metallurgy oil-impregnated bearing with honeycomb-shaped heat-conducting channels to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a powder metallurgy oil-impregnated bearing with honeycomb-shaped heat-conducting channels, comprising an oil-impregnated bearing body, wherein the interior of the oil-impregnated bearing body has a plurality of heat-conducting grooves that are circumferentially connected, and a partitioning mechanism is installed inside the oil-impregnated bearing body, the partitioning mechanism comprising a first partition ring, a second partition ring and a third partition ring, the second partition ring being installed on the rear side of the first partition ring and the third partition ring being installed on the front side of the first partition ring, and a plurality of partition plates being circumferentially fixed between the first partition ring, the second partition ring and the third partition ring, and an air guide groove communicating with the plurality of heat-conducting grooves being circumferentially opened inside the oil-impregnated bearing body.

[0005] As a preferred embodiment of this utility model, the heat-conducting groove has a regular hexagonal structure, and the length of the heat-conducting groove is equal to the length of the oil-impregnated bearing body.

[0006] As a preferred embodiment of this utility model, the distance between the first spacer and the second spacer is equal, and the distance between the first spacer and the third spacer is equal.

[0007] As a preferred embodiment of this utility model, the inner diameters of the first spacer, the second spacer, and the third spacer are all equal, and the outer diameters of the first spacer, the second spacer, and the third spacer are all equal.

[0008] As a preferred embodiment of this utility model, the first spacer, the second spacer, and the third spacer are all fixedly connected to the inner wall of the oil-impregnated bearing body, and the centers of the oil-impregnated bearing body, the first spacer, the second spacer, and the third spacer are all on the same horizontal line.

[0009] As a preferred embodiment of this utility model, the number of partitions is six, and the partitions are fixed to the inner wall of the oil-impregnated bearing body.

[0010] Compared with the prior art, the beneficial effects of this utility model are:

[0011] 1. When the oil-impregnated bearing body is in use, the high temperature generated by friction causes the oil inside the bearing body to seep out to lubricate itself. As the usage time increases, some oil will seep out from both ends of the bearing body. The separation mechanism forms multiple separation areas through the first, second, and third spacers, which can play a preliminary role in blocking the oil. Multiple sets of partitions are fixed in a ring between the first, second, and third spacers, which can form multiple smaller separation areas, thus playing a secondary role in blocking the oil and effectively preventing the oil from seeping out from both ends. When the temperature drops, the oil stored in the multiple separation areas will be reabsorbed into the bearing body, greatly reducing the leakage of oil, avoiding lubrication failure and accelerated wear, and effectively avoiding performance degradation or increased maintenance costs caused by oil contamination.

[0012] 2. Through the heat-conducting grooves with a regular hexagonal structure, honeycomb-shaped heat-conducting channels can be formed on the annular surface of the oil-impregnated bearing body. At the same time, multiple heat-conducting grooves are interconnected through air-conducting grooves, which can dissipate the heat generated by friction in a timely manner, avoiding the bearing temperature from rising sharply, which would cause the lubricating oil viscosity to decrease, or even evaporate or oxidize and deteriorate. Moreover, high temperature may also cause phase change or oxidation of the oil-impregnated bearing body, changing its microstructure and performance, further reducing its load-bearing capacity and wear resistance. Effective heat dissipation can prevent the material from degrading due to overheating. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of the powder metallurgy oil-impregnated bearing with honeycomb-shaped heat-conducting channels of this utility model.

[0014] Figure 2 This is a schematic diagram of the separation mechanism in the powder metallurgy oil-impregnated bearing with honeycomb-shaped heat-conducting channels of this utility model.

[0015] Figure 3 This is a cross-sectional view of the oil-impregnated bearing body in the powder metallurgy oil-impregnated bearing with honeycomb-shaped heat-conducting channels of this utility model.

[0016] Figure 4 This is a schematic diagram of the air guide groove in the powder metallurgy oil-impregnated bearing with honeycomb-shaped heat-conducting channels of this utility model.

[0017] In the figure: 1. Oil-impregnated bearing body; 2. Heat conduction groove; 3. Separation mechanism; 31. First spacer ring; 32. Second spacer ring; 33. Third spacer ring; 34. Partition plate; 4. Air guide groove. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] Please see Figures 1 to 4 This utility model provides a powder metallurgy oil-impregnated bearing with honeycomb-shaped heat-conducting channels, including an oil-impregnated bearing body 1. The oil-impregnated bearing body 1 has multiple heat-conducting grooves 2 that are circumferentially connected inside. The oil-impregnated bearing body 1 is equipped with a partition mechanism 3, which includes a first partition ring 31, a second partition ring 32 and a third partition ring 33. The second partition ring 32 is installed on the rear side of the first partition ring 31 and the third partition ring 33 is installed on the front side of the first partition ring 31. Multiple sets of partition plates 34 are circumferentially fixed between the first partition ring 31, the second partition ring 32 and the third partition ring 33. The oil-impregnated bearing body 1 has an annularly opened air guide groove 4 that communicates with the multiple heat-conducting grooves 2.

[0020] Furthermore, the heat conduction groove 2 has a regular hexagonal structure, and the length of the heat conduction groove 2 is equal to the length of the oil-impregnated bearing body 1. The airflow forms turbulence in the hexagonal channel, which significantly improves the heat exchange efficiency.

[0021] Furthermore, the spacing between the first spacer 31 and the second spacer 32 is equal, and the spacing between the first spacer 31 and the third spacer 33 is equal. The first spacer 31, the second spacer 32 and the third spacer 33 are axially symmetrically distributed to construct an equal-volume oil storage area and prevent oil leakage.

[0022] Furthermore, the inner diameters of the first spacer 31, the second spacer 32, and the third spacer 33 are all equal, and the outer diameters of the first spacer 31, the second spacer 32, and the third spacer 33 are all equal.

[0023] Furthermore, the first spacer 31, the second spacer 32, and the third spacer 33 are all fixed to the inner wall of the oil-impregnated bearing body 1, and the centers of the oil-impregnated bearing body 1, the first spacer 31, the second spacer 32, and the third spacer 33 are all on the same horizontal line.

[0024] Furthermore, there are six partitions 34, which are fixed to the inner wall of the oil-impregnated bearing body 1. This not only increases the connection strength between the first spacer 31, the second spacer 32 and the third spacer 33, but also forms multiple oil storage areas within the oil-impregnated bearing body 1.

[0025] Working principle: When using this device, when the oil-impregnated bearing body 1 rubs and its temperature rises, the lubricating oil inside the oil-impregnated bearing body 1 seeps out due to heat. The separating mechanism 3 forms a first-level barrier layer through the first spacer 31, the second spacer 32 and the third spacer 33, which are axially equidistantly distributed, to intercept part of the flowing oil. The six partitions 34 divide the oil into multiple independent oil storage areas to intercept the remaining flowing oil. The high-temperature oil is temporarily stored in the oil storage area. When the temperature drops, the oil can be absorbed into the oil-impregnated bearing body 1 through the capillary action of powder metallurgy, thereby extending the service life of the oil-impregnated bearing body 1 and reducing oil leakage. The heat generated during friction is discharged through the regular hexagonal heat conduction groove 2. The annular air guide groove 4 connects all the heat conduction grooves 2 to form a through airflow channel, which can dissipate the heat generated by friction in time and prevent the temperature of the oil-impregnated bearing body 1 from rising sharply, which would cause the viscosity of the lubricating oil to decrease.

[0026] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A powder metallurgy oil-impregnated bearing with honeycomb heat-conducting cells, comprising an oil-impregnated bearing body (1), characterized in that, The oil-impregnated bearing body (1) has multiple heat-conducting grooves (2) that are circumferentially connected inside. The oil-impregnated bearing body (1) is equipped with a partition mechanism (3). The partition mechanism (3) includes a first partition ring (31), a second partition ring (32), and a third partition ring (33). The second partition ring (32) is installed on the rear side of the first partition ring (31), and the third partition ring (33) is installed on the front side of the first partition ring (31). Multiple sets of partition plates (34) are fixedly connected in a ring between the first partition ring (31), the second partition ring (32), and the third partition ring (33). The oil-impregnated bearing body (1) has an air guide groove (4) that communicates with the multiple heat-conducting grooves (2) in a ring.

2. The powder metallurgy oil-impregnated bearing with honeycomb heat conducting cells according to claim 1, characterized in that, The heat conduction groove (2) has a regular hexagonal structure, and the length of the heat conduction groove (2) is equal to the length of the oil-impregnated bearing body (1).

3. The powder metallurgy oil-impregnated bearing with honeycomb heat conducting cells according to claim 2, characterized in that, The first spacer (31) and the second spacer (32) are spaced at the same distance, and the first spacer (31) and the third spacer (33) are spaced at the same distance.

4. The powder metallurgy oil-impregnated bearing with honeycomb heat conducting cells according to claim 3, characterized in that, The inner diameters of the first spacer (31), the second spacer (32), and the third spacer (33) are all equal, and the outer diameters of the first spacer (31), the second spacer (32), and the third spacer (33) are all equal.

5. The powder metallurgy oil-impregnated bearing with honeycomb heat-conducting cells according to claim 4, characterized in that, The first spacer (31), the second spacer (32) and the third spacer (33) are all fixed to the inner wall of the oil-impregnated bearing body (1), and the centers of the oil-impregnated bearing body (1), the first spacer (31), the second spacer (32) and the third spacer (33) are all on the same horizontal line.

6. The powder metallurgy oil-impregnated bearing with honeycomb heat conducting cells according to claim 5, characterized in that, The number of partitions (34) is six, and the partitions (34) are fixed to the inner wall of the oil-impregnated bearing body (1).

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