Bearing seat with good heat dissipation performance

Abstract

The utility model relates to the technical field of bearing seats, and discloses a bearing seat with good heat dissipation performance, which comprises a base and an upper cover, two ends of the base and two ends of the upper cover are provided with end covers, the end covers are semi-ring-shaped, the corresponding end covers of the base and the upper cover are mutually spliced into a complete ring shape, a bearing is arranged between the two corresponding end covers, and the bearing is arranged between the two corresponding end covers. A bearing is installed on the upper cover, a shaft is installed on the inner side of the bearing, an impeller is installed on the shaft, the impeller is arranged in the base and the upper cover, air holes are formed in the end covers, the end cover on one side serves as an air inlet side, and the end cover on the other side serves as an air outlet side. And air circulation on the surfaces of the inner ring and the outer ring of the bearing is promoted, and the heat dissipation effect is improved by strengthening convection.

Description

Technical Field

[0001] The utility model relates to the technical field of bearing seats, and more specifically, to a bearing seat with good heat dissipation performance. Background Art

[0002] In various mechanical equipment, the bearing seat is a key component that supports the shaft and bearings. Its performance directly affects the operating stability and life of the equipment. The traditional bearing seat structure mainly includes a fixed seat, bearings and connectors, which are used to support the rotating shaft and transfer loads.

[0003] The Chinese invention patent with application number 202410940930.9 discloses a porous heat dissipation bearing seat, in which a cooling chamber is arranged inside the bearing seat. The coolant in the cooling chamber is in direct contact with the bearing, and the outside of the cooling chamber dissipates heat through heat conductive plates and heat dissipation holes. The heat dissipation performance is ultimately improved by expanding the heat dissipation area. However, the effect of this structure is related to the ambient temperature and convection intensity, so that the effect of improving the heat dissipation of the bearing seat is limited. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model aims to provide a bearing seat with good heat dissipation performance.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A bearing seat with good heat dissipation performance comprises a base and an upper cover, end covers are arranged at both ends of the base and the upper cover, the end covers are semi-annular, the corresponding end covers of the base and the upper cover are assembled into a complete ring, a bearing is installed between the two corresponding end covers, a shaft is installed on the inner side of the bearing, an impeller is installed on the shaft, the impeller is arranged inside the base and the upper cover, air holes are opened on the end covers, one side of the end cover is an air inlet side, and the other side of the end cover is an air outlet side.

[0007] The utility model is further configured as follows: a cooling cavity II is provided on the inner wall of the end cover, the cooling cavity II is in a semi-annular shape coaxial with the end cover, the cooling cavity II is arranged in contact with the outer wall of the bearing, a plurality of external air holes II are provided on the side of the end cover away from the impeller, a plurality of internal air holes II are provided on the side of the end cover facing the impeller, one end of the external air holes II is connected to the external environment, the other end of the external air holes II is connected to the cooling cavity II, one end of the internal air holes II is connected to the cooling cavity II, the other end of the internal air holes II points to the inside of the base, and a plurality of the external air holes II and a plurality of the internal air holes II are staggered.

[0008] The present utility model is further configured as follows: both the external air hole II and the internal air hole II are arranged in an inclined direction. One end of the external air hole II connected to the cooling chamber II points to the outer wall of the bearing. A plurality of heat conduction fins are arranged on the inner walls of the base and the upper cover, and the heat conduction fins extend to the outside of the base and the upper cover. One end of the internal air hole II facing away from the cooling chamber II points to the heat conduction fins.

[0009] The present utility model is further configured as follows: a reinforcing sleeve is arranged between the inner wall of the bearing and the shaft. The reinforcing sleeve is in interference fit with both the shaft and the inner ring of the bearing. A cooling chamber I is provided on the outer ring of the reinforcing sleeve. The cooling chamber I is in contact with the inner ring of the bearing. A plurality of external air holes I are provided on the side of the cooling chamber I facing away from the impeller, and a plurality of internal air holes I are provided on the side of the cooling chamber I facing the impeller. The plurality of external air holes I and the plurality of internal air holes I are arranged alternately.

[0010] The present utility model is further configured as follows: both the external air hole I and the internal air hole I are arranged along an inclined direction. One end of the external air hole I connected to the cooling chamber I points to the inner ring of the bearing, and one end of the internal air hole I facing away from the cooling chamber I points to the heat conduction fins.

[0011] The present utility model is further configured as follows: bell mouths are provided at one ends of the external air hole I and the internal air hole I and one ends of the external air hole II and the internal air hole II facing the inner side of the base.

[0012] The advantages of the present utility model are as follows:

[0013] 1. An impeller is installed on the shaft. The impeller is arranged in the cavity formed by the base and the upper cover. Air holes are provided on both end covers. When the shaft operates, air is drawn from one side by the impeller and sent to the other side, thereby realizing the circulation of air inside the bearing seat. Heat exchange is promoted by enhancing convection, and the heat dissipation performance is improved.

[0014] 2. The inner and outer rings of the bearing are fixed by the reinforcing sleeve and the end cover respectively. Cooling chambers are provided on the sides of the reinforcing sleeve and the end cover connected to the bearing. A plurality of external air holes and internal air holes are provided on both sides of the cooling chamber. The external air holes and the internal air holes are arranged alternately, so that when air flows through, it cannot directly pass through the external air holes and the internal air holes, and a mixing flow needs to occur in the cooling chamber, thereby ensuring the contact between the air flow and the bearing surface and ensuring the heat dissipation effect.

[0015] 3. Heat conduction fins are arranged inside the base and the upper cover, and the heat conduction fins extend to the outside of the base and the upper cover. After the air flow exchanges heat with one side bearing, its temperature rises. The air flow with temperature rise enters the inside of the bearing seat, exchanges heat with the heat conduction fins, reduces the temperature of the air flow, and then is discharged from the other side and exchanges heat with the corresponding bearing, thereby improving the cooling effect of the air flow on the bearing on the air outlet side. Description of the Drawings

[0016] Figure 1 is a schematic structural view of an embodiment of the present utility model;

[0017] Figure 2 is along Figure 1 the sectional view taken along the line A-A shown;

[0018] Figure 3 is along Figure 1 the sectional view taken along the line B-B shown;

[0019] Figure 4 is Figure 2 the enlarged view of part C shown;

[0020] Figure 5 is a schematic structural view of the base of the present utility model;

[0021] Figure 6 is Figure 5 the enlarged view of part D shown;

[0022] Figure 7 is a schematic structural view of the reinforcing sleeve of the present utility model;

[0023] In the figure: 1, base; 2, upper cover; 3, reinforcing sleeve; 31, first cooling cavity; 32, first external air hole; 33, first internal air hole; 4, shaft; 5, impeller; 6, bearing; 7, heat conducting fin; 8, end cover; 81, second cooling cavity; 82, second external air hole; 83, second internal air hole. Specific embodiments

[0024] It should be noted that, without conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The present utility model will be described in detail below with reference to the drawings and in conjunction with the embodiments.

[0025] It should be pointed out that, unless otherwise specified, all technical and scientific terms used in the present application have the same meaning as commonly understood by those of ordinary skill in the technical field to which the present application belongs.

[0026] In the present utility model, unless otherwise stated, the orientations such as "upper, lower" are generally with respect to the directions shown in the drawings, or with respect to the vertical, perpendicular or gravitational directions; similarly, for the convenience of understanding and description, "left, right" are generally with respect to the left and right shown in the drawings; "inside, outside" refer to the inside and outside relative to the contours of the respective components, but the above orientation terms are not used to limit the present utility model.

[0027] Please refer to Figures 1-7 , the present utility model provides the following technical solutions:

[0028] A bearing housing with good heat dissipation performance includes a base 1 and an upper cover 2. When the base 1 and the upper cover 2 are fixed together, a cavity is formed inside. End caps 8 are provided at both ends of the base 1 and the upper cover 2. The end caps 8 are semi-circular rings. The corresponding end caps 8 of the base 1 and the upper cover 2 are joined together to form a complete ring. A bearing 6 is jointly installed between two corresponding end caps 8. A shaft 4 is installed inside the bearing 6. An impeller 5 is installed on the shaft 4. The impeller 5 is arranged inside the cavity of the base 1 and the upper cover 2. Air holes are provided on the end caps 8. One side end cap 8 is the air inlet side, and the other side end cap 8 is the air outlet side. When the shaft 4 operates, the impeller 5 rotates synchronously, thereby driving air to enter the cavity from the air inlet side and then be discharged from the air outlet side on the other side, promoting the heat dissipation inside the bearing housing and improving the heat dissipation effect.

[0029] A second cooling cavity 81 is provided on the inner wall of the end cap 8. The second cooling cavity 81 is in the shape of a semi-circular ring coaxial with the end cap 8. The second cooling cavity 81 is arranged in contact with the outer wall of the bearing 6. A number of external air holes 82 are provided on the side of the end cap 8 facing away from the impeller 5. A number of internal air holes 83 are provided on the side of the end cap 8 facing the impeller 5. One end of the external air hole 82 is connected to the external environment, and the other end of the external air hole 82 is communicated with the second cooling cavity 81. One end of the internal air hole 83 is communicated with the second cooling cavity 81, and the other end of the internal air hole 82 points to the inside of the base 1. The number of external air holes 82 and the number of internal air holes 83 are arranged in an alternating manner;

[0030] Since the hole positions of the external air holes 82 and the internal air holes 83 do not correspond to each other, the air on the air inlet side is forced to mix after entering the second cooling cavity 81 and then discharged from the second cooling cavity 81 through the internal air holes 83, increasing the contact amount of the air with the outer surface of the bearing 6, thereby ensuring the heat dissipation effect of the outer ring of the bearing 6.

[0031] A reinforcing sleeve 3 is provided between the inner wall of the bearing 6 and the shaft 4. The reinforcing sleeve 3 is in interference fit with both the shaft 4 and the inner ring of the bearing 6. A first cooling cavity 31 is provided on the outer ring of the reinforcing sleeve 3. The first cooling cavity 31 is in contact with the inner ring of the bearing 6. A number of external air holes 32 are provided on the side of the first cooling cavity 31 facing away from the impeller 5. A number of internal air holes 33 are provided on the side of the first cooling cavity 31 facing the impeller 5. The number of external air holes 32 and the number of internal air holes 33 are arranged in an alternating manner, thereby increasing the contact amount of the air with the inner ring of the bearing 6 and ensuring the heat dissipation effect of the inner ring of the bearing 6. At the same time, the reinforcing sleeve 3 and the shaft 4 are of a split design, ensuring that the strength of the shaft 4 itself is not affected.

[0032] The external air holes II 82 and the internal air holes II 83 are both arranged in an inclined direction. The end of the external air holes II 82 connected to the cooling chamber II 81 points to the outer wall of the bearing 6, and when air flows through, it is blown towards the bearing 6, improving the heat dissipation effect; A number of heat-conducting fins 7 are provided on the inner walls of the base 1 and the upper cover 2. The heat-conducting fins 7 extend to the outside of the base 1 and the upper cover 2. The end of the internal air holes II 83 facing away from the cooling chamber II 81 points to the heat-conducting fins 7, so that most of the air entering the cavity exchanges heat with the heat-conducting fins 7, thereby reducing the temperature of the gas after heat exchange on one side and improving the heat dissipation effect of the bearing 6 on the subsequent outlet side;

[0033] The external air holes I 32 and the internal air holes I 33 are both arranged along an inclined direction. The end of the external air holes I 32 connected to the cooling chamber I 31 points to the inner ring of the bearing 6, and the end of the internal air holes I 33 facing away from the cooling chamber I 31 points to the heat-conducting fins 7. Similarly, the arrangement of the external air holes I 32 and the internal air holes I 33 improves the heat dissipation effect of the inner ring of the bearing 6.

[0034] Flared mouths are provided at the ends of the external air holes I 32 and the internal air holes I 33 and the external air holes II 82 and the internal air holes II 83 facing the inner side of the base 1;

[0035] The flared mouth on the air inlet side is located at the outlet of the air hole, and the air flow is dispersed at the flared mouth, thereby strengthening the mixed flow and improving the heat exchange efficiency;

[0036] The flared mouth on the air outlet side is located at the inlet of the air hole, and the air flow enters the air hole through the flared mouth, making it more convenient for the gas to be discharged.

[0037] Specifically, an impeller 5 is installed on the shaft 4. The impeller 5 is arranged in the cavity formed by the base 1 and the upper cover 2. Air holes are provided on both end covers 8. When the shaft 4 is running, air is drawn from one side and sent to the other side through the impeller 5, thereby realizing the circulation of air inside the bearing housing, promoting heat exchange by strengthening convection, and improving the heat dissipation performance;

[0038] The inner and outer rings of the bearing 6 are respectively fixed by the reinforcing sleeve 3 and the end cover 8. Cooling chambers are provided on the sides of the reinforcing sleeve 3 and the end cover 8 connected to the bearing 6. A number of external air holes and internal air holes are respectively provided on both sides of the cooling chamber. The external air holes and the internal air holes are arranged alternately, so that when air flows through, it cannot directly pass through the external air holes and the internal air holes and needs to have a mixed flow in the cooling chamber, thereby ensuring the contact between the air flow and the surface of the bearing 6 and ensuring the heat dissipation effect;

[0039] Heat dissipation fins 7 are provided inside the base 1 and the upper cover 2. The heat dissipation fins 7 extend to the outside of the base 1 and the upper cover 2. After the air flow exchanges heat with one side bearing 6, the temperature of the air flow rises. The air flow with temperature rise enters the inside of the bearing housing, exchanges heat with the heat dissipation fins 7, reduces the temperature of the air flow, and then is discharged from the other side and exchanges heat with the corresponding bearing 6, thereby improving the cooling effect of the air flow on the bearing 6 on the air outlet side.

[0040] Obviously, the above-described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0041] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular forms are also intended to include the plural forms. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0042] It should be noted that the terms "first", "second", etc. in the specification, claims and drawings of the present application are used to distinguish similar objects and do not necessarily need to describe a specific order or sequence. It should be understood that such data can be interchanged under appropriate circumstances so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein.

[0043] The above are only the preferred embodiments of the present invention and are not used to limit the present invention. For those skilled in the art, the present invention can have various changes and modifications. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A bearing housing with good heat dissipation performance, comprising a base (1) and an upper cover (2), characterized in that: Both ends of the base (1) and the upper cover (2) are provided with end caps (8). The end caps (8) are semi-circular rings. The corresponding end caps (8) of the base (1) and the upper cover (2) are assembled into a complete ring. A bearing (6) is jointly installed between two corresponding end caps (8). A shaft (4) is installed inside the bearing (6). An impeller (5) is installed on the shaft (4). The impeller (5) is arranged inside the base (1) and the upper cover (2). Air holes are opened on the end caps (8). One side of the end cap (8) is the air inlet side, and the other side of the end cap (8) is the air outlet side.

2. The bearing housing with good heat dissipation performance according to claim 1, characterized in that: A second cooling cavity (81) is opened on the inner wall of the end cap (8). The second cooling cavity (81) is in the shape of a semi-circular ring coaxial with the end cap (8). The second cooling cavity (81) is arranged in contact with the outer wall of the bearing (6). A number of external air holes two (82) are opened on the side of the end cap (8) facing away from the impeller (5). A number of internal air holes two (83) are opened on the side of the end cap (8) facing the impeller (5). One end of the external air hole two (82) is connected to the external environment, and the other end of the external air hole two (82) is communicated with the second cooling cavity (81). One end of the internal air hole two (83) is communicated with the second cooling cavity (81), and the other end of the external air hole two (82) points to the inside of the base (1). A number of the external air holes two (82) and a number of the internal air holes two (83) are arranged in a staggered manner.

3. The bearing housing with good heat dissipation performance according to claim 2, wherein: Both the external air hole two (82) and the internal air hole two (83) are arranged in an inclined direction. The end of the external air hole two (82) connected to the second cooling cavity (81) points to the outer wall of the bearing (6). A number of heat-conducting fins (7) are arranged on the inner walls of the base (1) and the upper cover (2). The heat-conducting fins (7) extend to the outside of the base (1) and the upper cover (2). The end of the internal air hole two (83) facing away from the second cooling cavity (81) points to the heat-conducting fin (7).

4. A bearing housing with good heat dissipation performance according to claim 3, characterized in that: A reinforcing sleeve (3) is arranged between the inner wall of the bearing (6) and the shaft (4). The reinforcing sleeve (3) is in an interference fit with both the shaft (4) and the inner ring of the bearing (6). A first cooling cavity (31) is opened on the outer ring of the reinforcing sleeve (3). The first cooling cavity (31) is in contact with the inner ring of the bearing (6). A number of external air holes one (32) are opened on the side of the first cooling cavity (31) facing away from the impeller (5). A number of internal air holes one (33) are opened on the side of the first cooling cavity (31) facing the impeller (5). A number of the external air holes one (32) and a number of the internal air holes one (33) are arranged in a staggered manner.

5. The bearing housing with good heat dissipation performance according to claim 4, wherein: Both the external air hole one (32) and the internal air hole one (33) are arranged along an inclined direction. The end of the external air hole one (32) connected to the first cooling cavity (31) points to the inner ring of the bearing (6). The end of the internal air hole one (33) facing away from the first cooling cavity (31) points to the heat-conducting fin (7).

6. The bearing housing with good heat dissipation performance according to claim 5, characterized in that: Flared mouths are arranged at the ends of the external air hole one (32) and the internal air hole one (33) and the external air hole two (82) and the internal air hole two (83) facing the inside of the base (1).

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