Bearing heat dissipation device

Abstract

The present invention discloses a bearing heat dissipation device, which belongs to the technical field of heat dissipation of inner ring protruding bearings. The present invention includes a bearing assembly, a heat dissipation assembly, a wind force assembly and a telescopic assembly. The heat dissipation assembly is sleeved on the outer side of the bearing assembly, and a heat dissipation structure is provided on the surface of the heat dissipation assembly. The wind force assembly is arranged between the bearing assembly and the heat dissipation assembly, and the wind force assembly can provide wind to cool the bearing assembly and the heat dissipation assembly. The telescopic assembly deforms as the temperature changes. When the temperature rises, the telescopic assembly extends, and when the temperature drops, the telescopic assembly contracts. When the telescopic assembly extends, the bearing assembly can be connected and drive the wind force assembly to work. When the telescopic assembly contracts, the bearing assembly is disconnected from the wind force assembly and stops driving the wind force assembly to work. The present invention improves the heat dissipation effect by providing a heat dissipation assembly.

Description

Technical Field

[0001] The invention relates to the technical field of heat dissipation of bearings with protruding inner rings, and in particular to a bearing heat dissipation device. Background Art

[0002] Inner ring protruding bearings generally refer to bearings with flanges on the inner ring. The axial length of the inner ring of some inner ring protruding bearings is much greater than the axial length of the outer ring of the bearing. The protruding part of the inner ring protruding bearing can be well used for axial positioning. In mechanical transmission systems, when it is necessary to limit the axial displacement of the shaft, this type of bearing can rely on the flange of the inner ring to cooperate with adjacent components to accurately determine the axial position of the shaft. For example, at the shaft extension end of some small motors, the use of this type of bearing can effectively prevent the axial movement of the motor shaft during operation and ensure the stable operation of the motor. The inner ring protruding part of the inner ring protruding bearing can also increase the bearing's load-bearing capacity in the axial direction. In some application scenarios that bear both radial and axial loads, such as helical gear transmission devices, the axial force generated can be better transmitted and dispersed through the inner ring flange, allowing the bearing to withstand greater axial loads and improving the overall load-bearing performance of the bearing.

[0003] The inner ring protrusion of the bearing will have a certain impact on the heat dissipation of the bearing. This is because the protrusion will hinder the heat dissipation to a certain extent. Especially under high-speed operation or high-load working conditions, the heat generated inside the bearing is difficult to dissipate quickly, which can easily lead to an increase in bearing temperature, thereby affecting the service life and performance of the bearing. Summary of the invention

[0004] In view of the above-mentioned deficiencies, the present invention provides a bearing heat dissipation device, which can effectively dissipate heat from the bearing and prevent high temperature from affecting the service life and performance of the bearing.

[0005] The present invention protects a bearing heat dissipation device, which includes a bearing assembly, a heat dissipation assembly, a wind assembly and a telescopic assembly;

[0006] The heat dissipation component is sleeved on the outer side of the bearing component, and a heat dissipation structure is provided on the surface of the heat dissipation component to increase the heat dissipation area;

[0007] The wind force component is arranged between the bearing component and the heat dissipation component, and the wind force component can provide wind force to cool the bearing component and the heat dissipation component;

[0008] The telescopic component deforms as the temperature changes. When the temperature rises, the telescopic component stretches, and when the temperature drops, the telescopic component contracts;

[0009] When the telescopic assembly is extended, the bearing assembly can be connected and drive the wind force assembly to work; when the telescopic assembly is retracted, the bearing assembly is disconnected from the wind force assembly and stops driving the wind force assembly to work.

[0010] Further, the heat dissipation assembly comprises a heat dissipation housing, wherein the heat dissipation housing has a first side surface and a second side surface opposite to each other;

[0011] The upper surface of the heat dissipation housing is provided with fins; the heat dissipation structure is the fins.

[0012] Furthermore, a heat dissipation channel is provided on the heat dissipation housing, a first opening of the heat dissipation channel is provided on the second side surface, and a second opening of the heat dissipation channel is provided on the upper surface of the heat dissipation housing;

[0013] The upper surface of the heat dissipation shell is also provided with a gap to allow air to circulate inside and outside the heat dissipation shell.

[0014] Furthermore, a baffle is provided on the upper surface of the heat dissipation housing, and the fin is provided on one side of the baffle, and the fin is close to the second side surface;

[0015] The baffle is a bent plate bent toward the fin;

[0016] The second opening of the heat dissipation channel is arranged between the fin and the baffle.

[0017] Further, the bearing assembly comprises a bearing inner ring and a bearing outer ring sleeved outside the bearing inner ring, and the axial length of the bearing inner ring is longer than the axial length of the bearing outer ring;

[0018] The bearing inner ring has a first end and a second end opposite to each other, the first end is close to the first side surface, and the second end is close to the second side surface;

[0019] A heat sink and a plurality of protrusions are provided on the side surface of the bearing inner ring, wherein the heat sink is close to the first end; and the protrusions extend in the axial direction.

[0020] Further, the wind power assembly includes a first wind power ring and a second wind power ring;

[0021] The first wind ring is close to the first side surface, and the second wind ring is close to the second side surface.

[0022] Furthermore, the first wind ring includes a first ring body composed of two concentric rings of different diameters, the inner ring and the outer ring of the first ring body are connected by a plurality of first blades arranged at intervals, and the first blades are arranged obliquely;

[0023] A protrusion is arranged on the inner wall of the inner ring of the first ring body.

[0024] Furthermore, the second wind ring includes a second ring body composed of two concentric rings of different diameters, the inner ring and the outer ring of the second ring body are connected by a plurality of second blades arranged at intervals, and the second blades are arranged obliquely;

[0025] A metal flexible bending sheet is provided on the inner wall of the inner ring of the second ring body.

[0026] Further, the telescopic assembly includes a first telescopic column and a telescopic ring;

[0027] The first telescopic column is arranged on the bearing assembly, and the first telescopic column is extended to connect the bearing assembly and the first wind ring;

[0028] The telescopic ring is arranged on the heat dissipation shell, and the extension of the telescopic ring enables the second wind ring to be connected to the bearing assembly.

[0029] Further, the telescopic ring includes a circular ring and a second telescopic column;

[0030] The second telescopic column has the same structure as the first telescopic column.

[0031] Beneficial effects: The present invention provides a heat dissipation component, which is in contact with the bearing component, and can directly conduct the heat of the bearing component to the heat dissipation component. Compared with air heat dissipation, the heat dissipation effect of conduction is better; in addition, the heat dissipation component is sleeved on the outside of the bearing component, which is equivalent to increasing the heat dissipation area of ​​the heat dissipation component, and can also improve the heat dissipation effect. By providing a heat dissipation structure, the heat dissipation area is further increased, which can improve the heat dissipation effect. By providing a telescopic component, it is possible to control whether the wind power component is working. When the temperature rises, the telescopic component is heated and stretched. When it stretches to a certain extent, the bearing component and the wind power component can be connected, thereby driving the wind power component to work, and the wind power component can dissipate heat for the bearing component; when the temperature drops, the telescopic component begins to shrink. When it shrinks to a certain extent, the bearing component is disconnected from the wind power component, and the wind power component stops working. The telescopic component can be set up to enable the wind power component to work when the temperature of the telescopic component rises, which has two advantages. The first advantage is that it can reduce energy consumption and only dissipate heat when it is needed; the second advantage is to prevent the increase of the load of the bearing component and generate a lot of heat. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0033] in:

[0034] Figure 1 It is a schematic diagram of the overall structure of a bearing heat dissipation device at a first angle in one embodiment of the present invention;

[0035] Figure 2 A schematic diagram of the overall structure of a bearing heat dissipation device at a second angle in one embodiment of the present invention;

[0036] Figure 3 It is a schematic diagram of the overall structure of a bearing assembly in one embodiment of the present invention;

[0037] Figure 4 It is a schematic diagram of the overall structure of a bearing heat dissipation device at a first angle after the bearing assembly is removed in one embodiment of the present invention;

[0038] Figure 5 for Figure 4 A partial enlarged view of part A;

[0039] Figure 6 It is a schematic diagram of the overall structure of the bearing heat dissipation device at a second angle after the bearing assembly is removed in one embodiment of the present invention;

[0040] Figure 7 for Figure 6 A partial enlarged view of part B;

[0041] Figure 8 This is a schematic diagram of the overall structure of the first wind ring in one embodiment of the present invention;

[0042] Fig. 9 This is a schematic diagram of the overall structure of the second wind ring in one embodiment of the present invention;

[0043] Fig.10 It is a schematic diagram of the overall structure of a heat dissipation assembly with a telescopic ring in one embodiment of the present invention;

[0044] Fig.11 A partial cross-sectional view of a bearing heat dissipation device in one embodiment of the present invention;

[0045] Fig.12 for Fig.11 A partial enlarged view of part C in the middle;

[0046] In the figure, 1, bearing assembly; 11, bearing inner ring; 12, heat sink; 13, ridge; 14, bearing outer ring;

[0047] 2. heat dissipation assembly; 21. heat dissipation housing; 211. gap; 212. heat dissipation channel; 22. fin; 23. baffle;

[0048] 3. Wind power assembly; 31. First wind power ring; 311. First ring body; 312. First blade; 313. Bump; 32. Second wind power ring; 321. Second ring body; 322. Second blade; 323. Bend piece;

[0049] 4. Telescopic assembly; 41. First telescopic column; 42. Telescopic ring; 421. Circular ring; 422. Second telescopic column. DETAILED DESCRIPTION

[0050] The following will be combined with the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0051] refer to Figure 1 to Figure 12 The present invention protects a bearing heat dissipation device, which includes a bearing component 1, a heat dissipation component 2, a wind component 3 and a telescopic component 4.

[0052] The heat dissipation component 2 is sleeved on the outside of the bearing component 1, and a heat dissipation structure is provided on the surface of the heat dissipation component 2 to increase the heat dissipation area. After the heat dissipation component 2 is provided, the heat of the bearing component 1 can be directly transferred to the heat dissipation component 2, effectively improving the heat dissipation efficiency. The heat dissipation component 2 is made of metal material with good rigidity and heat dissipation. The heat dissipation component 2 is also provided to better set the heat dissipation structure. The heat dissipation structure can be a heat sink, a heat dissipation channel, or a heat dissipation net. Or it can be a combination of the above structures.

[0053] The wind force component 3 is arranged between the bearing component 1 and the heat dissipation component 2, and the wind force component 3 can provide wind to cool the bearing component 1 and the heat dissipation component 2. The wind force component 3 can cool the bearing component 1 or the heat dissipation component 2 separately, and the wind force component 3 can also cool the bearing component 1 and the heat dissipation component 2 at the same time.

[0054] The telescopic component 4 changes shape with temperature. When the temperature rises, the telescopic component 4 expands, and when the temperature drops, the telescopic component 4 contracts. The telescopic component 4 can be made of a temperature-dependent material, such as some temperature-dependent metal springs; the telescopic component 4 can also be made of a temperature-dependent liquid, and the hydraulic pressure of the liquid is used to achieve expansion and contraction.

[0055] When the telescopic assembly 4 is extended, the bearing assembly 1 can be connected and drive the wind assembly 3 to work; when the telescopic assembly 4 is retracted, the bearing assembly 1 is disconnected from the wind assembly 3 and stops driving the wind assembly 3 to work. The bearing assembly 1 can be directly connected to the wind assembly 3 to drive the wind assembly 3 to work; the bearing assembly 1 can also be indirectly connected to the wind assembly 3 through the telescopic assembly 4.

[0056] The present invention provides a heat dissipation component 2, which contacts the bearing component 1, and can directly conduct the heat of the bearing component 1 to the heat dissipation component 2. Compared with air heat dissipation, the heat dissipation effect of conduction heat dissipation is better; in addition, the heat dissipation component 2 is sleeved on the outside of the bearing component 1, which is equivalent to increasing the heat dissipation area of ​​the heat dissipation component 2, and can also improve the heat dissipation effect. By providing a heat dissipation structure, the heat dissipation area is further increased, and the heat dissipation effect can be improved. By providing a telescopic component 4, it is possible to control whether the wind component 3 works. When the temperature rises, the telescopic component 4 is heated and stretched. When it stretches to a certain extent, the bearing component 1 can be connected to the wind component 3, thereby driving the wind component 3 to work, and the wind component 3 can dissipate heat for the bearing component 1; when the temperature drops, the telescopic component 4 begins to shrink. When it shrinks to a certain extent, the bearing component 1 is disconnected from the wind component 3, and the wind component 3 stops working. The telescopic component 4 is provided, and the wind component 3 can work when the temperature of the telescopic component 4 rises, which has two advantages. The first advantage is that it can reduce energy consumption and only dissipate heat when heat is needed; the second advantage is to prevent the increase of the load of the bearing component 1 and generate a lot of heat.

[0057] refer to Figure 4~Figure 6 In a specific embodiment, the heat dissipation assembly 2 includes a heat dissipation housing 21, and the heat dissipation housing 21 has a first side surface and a second side surface opposite to each other. The heat dissipation housing 21 is shaped like a convex letter or an arch bridge, and a through hole is provided in the center of the heat dissipation housing 21, and the bearing assembly 1, the wind power assembly 3 and the telescopic assembly 4 are placed in the through hole.

[0058] in, Figure 1 and Figure 4 The heat dissipation housing 21 shows the first side surface. Figure 2 The middle heat dissipation housing 21 shows the second side surface.

[0059] The upper surface of the heat dissipation housing 21 is provided with fins 22 ; the heat dissipation structure is the fins 22 .

[0060] The convex-shaped heat dissipation housing 21 in this embodiment increases the heat dissipation area and also facilitates fixation, similar to a bearing seat. The fins 22 are provided to effectively increase the heat dissipation area. In addition, the fins 22 can also increase the rigidity of the heat dissipation housing 21, making the bearing assembly 1 run more stably.

[0061] refer to Figure 5 , Figure 7 , Fig.10 and Fig.12 In a specific embodiment, a heat dissipation channel 212 is provided on the heat dissipation housing 21, a first opening of the heat dissipation channel 212 is provided on the second side surface, and a second opening of the heat dissipation channel 212 is provided on the upper surface of the heat dissipation housing 21. Specifically, referring to Fig.10An annular boss is provided on the inner wall of the heat dissipation housing 21, the axis of the annular boss coincides with the axis of the through hole, a second opening is provided on the boss, and the heat dissipation channel 212 is L-shaped.

[0062] The upper surface of the heat dissipation housing 21 is also provided with a gap 211 to allow air to circulate inside and outside the heat dissipation housing 21. Figure 5 A gap 211 is provided on the top surface of the heat dissipation housing 21 , and the gap 211 communicates with the inside and outside of the through hole.

[0063] By providing the heat dissipation channel 212, the heat inside the heat dissipation housing 21 can be discharged from the top of the heat dissipation housing 21, so that the temperature of the heat dissipation housing 21 can be effectively reduced. By providing the gap 211, the external low-temperature gas can be introduced from the gap 211 to dissipate the heat of the bearing assembly 1. The purpose of the heat dissipation channel 212 and the gap 211 provided in this embodiment is to target different heat generation modes. For example, if the bearing assembly 1 is a heat source, the provided gap 211 can cool the bearing assembly 1 more directly, and the heat dissipation effect is good. If the bearing assembly 1 is not a heat source, but other heat sources transfer heat to the heat dissipation housing 21, resulting in a large amount of heat in the heat dissipation housing 21, the heat dissipation channel 212 can better cool the heat dissipation housing 21.

[0064] refer to Figure 7 In a specific embodiment, a baffle 23 is provided on the upper surface of the heat dissipation housing 21, and a fin 22 is provided on one side of the baffle 23, and the fin 22 is close to the second side surface. Preferably, the baffle 23 is arranged in the middle of the heat dissipation housing 21, that is, the distance from the baffle 23 to the first side surface is the same as the distance from the baffle 23 to the second side surface, and the plane where the baffle 23 is located is perpendicular to the axis of the through hole.

[0065] The baffle 23 is a bent plate bent toward the fin 22. Specifically, the top of the baffle 23 is bent toward the fin 22. The top of the baffle 23 is close to the fin 22 or the top of the baffle 23 is in contact with the fin 22. The second opening of the heat dissipation channel 212 is disposed between the fin 22 and the baffle 23.

[0066] In this embodiment, a bent baffle 23 is provided to allow gas to flow to the fins 22. The working process is as follows: external low-temperature gas enters the heat dissipation channel 212 through the first opening, is discharged from the second opening after absorbing part of the heat, and flows to the fins 22 under the guidance of the baffle 23, thereby cooling the fins 22. Since the heat dissipation channel 212 is narrow and the gas flow rate is fast, even if the temperature of the gas discharged from the second opening is still lower than the temperature of the fins 22, the fins 22 can still be cooled. In this embodiment, the external gas first cools the heat dissipation channel 212, and then cools the fins 22. The two coolings can effectively reduce the temperature of the heat dissipation housing 21, thereby achieving efficient heat dissipation of the heat dissipation housing 21.

[0067] refer to Figure 3 In a specific embodiment, the bearing assembly 1 includes a bearing inner ring 11 and a bearing outer ring 14 sleeved outside the bearing inner ring 11, and the axial length of the bearing inner ring 11 is longer than the axial length of the bearing outer ring 14. The bearing in this embodiment is a non-standard bearing, and the bearing inner ring 11 protrudes to both sides. A ball is arranged between the bearing inner ring 11 and the bearing outer ring 14.

[0068] The bearing inner ring 11 has a first end and a second end opposite to each other, the first end is close to the first side surface, and the second end is close to the second side surface. The bearing outer ring 14 is located at the midpoint of the bearing inner ring 11. The distances from the first end and the second end to the bearing outer ring 14 are the same.

[0069] The outer side surface of the bearing inner ring 11 is provided with a heat sink 12 and a plurality of protrusions 13, the heat sink 12 is close to the first end, and the protrusions 13 extend in the axial direction. The heat sink 12 and the protrusions 13 are arranged on both sides of the bearing outer ring 14.

[0070] The heat sink 12 is provided for two purposes in this embodiment. The first purpose is to increase the heat dissipation area so that the heat of the bearing inner ring 11 is transferred to the heat sink 12 and then dissipated quickly; the second purpose is to increase air flow. The heat sink 12 rotates with the rotation of the bearing inner ring 11, which will form airflow and quickly take away the heat.

[0071] refer to Figure 1 , Figure 2 and Figure 6 In a specific embodiment, the wind power assembly 3 includes a first wind power ring 31 and a second wind power ring 32. The first wind power ring 31 is close to the first side surface, and the second wind power ring 32 is close to the second side surface.

[0072] This embodiment can provide wind power separately by setting the first wind ring 31 and the second wind ring 32. In this way, if you want to cool the bearing assembly 1, you only need to rotate the first wind ring 31 to allow the external low-temperature gas to enter the through hole from the gap 211, and then be discharged from the first side to take away the heat of the bearing assembly 1. If you want to cool the heat dissipation shell 21, you only need to rotate the second wind ring 32 to allow the external low-temperature gas to enter the heat dissipation channel 212, and then pass through the fins 22 to take away the heat of the heat dissipation shell 21. Providing wind power separately can save energy and improve the heat dissipation effect.

[0073] refer to Figure 8In a specific embodiment, the first wind ring 31 includes a first ring body 311 composed of two concentric rings of different diameters, and the inner ring and the outer ring of the first ring body 311 are connected by a plurality of first blades 312 arranged at intervals, and the first blades 312 are arranged at an angle. The outer ring is arranged in the through hole, and the outer wall of the outer ring fits the inner wall of the through hole, so that the first ring body 311 can rotate. When the first ring body 311 rotates, the inclined first blades 312 can make the gas move axially. A protrusion 313 is provided on the inner wall of the inner ring of the first ring body 311. The protrusion 313 is provided to facilitate connection with the bearing assembly 1.

[0074] refer to Fig. 9 In a specific embodiment, the second wind ring 32 includes a second ring body 321 composed of two concentric rings of different diameters, and the inner ring and the outer ring of the second ring body 321 are connected by a plurality of second blades 322 arranged at intervals, and the second blades 322 are inclined.

[0075] A metal flexible bending piece 323 is provided on the inner wall of the inner ring of the second ring body 321. The bending piece 323 is provided so as to be connected to the bearing assembly 1 after being bent.

[0076] refer to Figure 3 , Figure 4 and Figure 8 In a specific embodiment, the telescopic assembly 4 includes a first telescopic column 41 and a telescopic ring 42 .

[0077] The first telescopic column 41 is arranged on the bearing assembly 1, and the first telescopic column 41 is extended to connect the bearing assembly 1 and the first wind ring 31. Specifically, the first telescopic column 41 is arranged on the side wall of the bearing inner ring 11. The first telescopic column 41 is arranged between the bearing outer ring 14 and the heat sink 12. The first telescopic column 41 corresponds to the position of the protrusion 313. After the first telescopic column 41 is extended, it can extend into the gap between adjacent protrusions 313. The rotation of the bearing inner ring 11 can drive the first ring body 311 to rotate. Among them, the first telescopic column 41 has a cylindrical base, a telescopic head is arranged in the cylinder, and a temperature-changing liquid is arranged in the cylindrical base. Among them, the temperature-changing liquid can be one of kerosene, mercury, water and alcohol. The telescopic head and the cylinder are combined to seal the temperature-changing liquid.

[0078] The telescopic ring 42 is disposed on the heat dissipation housing 21 , and the telescopic ring 42 is extended to connect the second wind ring 32 to the bearing assembly 1 .

[0079] In this embodiment, the first telescopic column 41 is arranged on the bearing inner ring 11. When the temperature of the bearing inner ring 11 is high, the first telescopic column 41 can be extended to connect with the first ring body 311, driving the first ring body 311 to rotate. In this way, the heat can be dissipated in time when the bearing inner ring 11 is heated in the early stage, preventing the bearing from being damaged by excessive temperature.

[0080] refer to Fig.10 In a specific embodiment, the telescopic ring 42 includes a circular ring 421 and a second telescopic column 422. The diameter of the circular ring 421 is smaller than the diameter of the inner ring of the second ring body 321. The second telescopic column 422 has the same structure as the first telescopic column 41. The second telescopic column 422 is arranged on a boss, Fig.10 When the second telescopic column 422 is heated and stretched, it pushes the circular ring 421 toward the second side surface. Since the second ring body 321 is arranged outside the circular ring 421, the circular ring 421 pushes the bending piece 323 to bend. The free end of the bending piece 323 is moved toward the bearing inner ring 11 until the free end of the bending piece 323 contacts the protrusion 13 or the free end of the bending piece 323 contacts the outer wall of the bearing inner ring 11 between adjacent protrusions 13. When the bearing inner ring 11 rotates, it can drive the bending piece 323 and the second ring body 321 to rotate, and can introduce external gas into the heat dissipation channel 212.

[0081] In this embodiment, the second telescopic column 422 is arranged on the boss, so that when the temperature of the heat dissipation housing 21 rises, the second telescopic column 422 can be extended in time, the ring 421 bends the bending piece 323, and then the free end of the bending piece 323 is connected to the bearing inner ring 11. The bearing inner ring 11 drives the second ring body 321 to rotate, thereby cooling the heat dissipation housing 21.

[0082] In the present invention, the first wind ring 31 is provided to dissipate heat for the bearing assembly 1, and the second wind ring 32 is provided to dissipate heat for the heat dissipation housing 21. The heat dissipation of the heating part can be timely, the heat dissipation effect is good, and energy consumption is saved.

[0083] The above disclosure is only the preferred embodiment of the present invention, which certainly cannot be used to limit the scope of the present invention. Therefore, equivalent changes made according to the claims of the present invention are still within the scope of the present invention.

Claims

1. A bearing heat dissipation device, characterized in that: It comprises a bearing assembly (1), a heat dissipation assembly (2), a wind power assembly (3) and a telescopic assembly (4); The heat dissipation component (2) is sleeved on the outer side of the bearing component (1), and a heat dissipation structure is provided on the surface of the heat dissipation component (2) to increase the heat dissipation area; The wind force component (3) is arranged between the bearing component (1) and the heat dissipation component (2), and the wind force component (3) can provide wind force, and the wind force cools the bearing component (1) and the heat dissipation component (2); The telescopic component (4) deforms as the temperature changes; when the temperature rises, the telescopic component (4) stretches, and when the temperature drops, the telescopic component (4) contracts; When the telescopic assembly (4) is extended, the bearing assembly (1) can be connected and drive the wind force assembly (3) to work; when the telescopic assembly (4) is retracted, the bearing assembly (1) is disconnected from the wind force assembly (3) and stops driving the wind force assembly (3) to work; The heat dissipation assembly (2) comprises a heat dissipation housing (21), wherein the heat dissipation housing (21) has a first side surface and a second side surface that are opposite to each other; The upper surface of the heat dissipation housing (21) is provided with fins (22); the heat dissipation structure is the fins (22); The heat dissipation housing (21) is provided with a heat dissipation channel (212), a first opening of the heat dissipation channel (212) is arranged on the second side surface, and a second opening of the heat dissipation channel (212) is arranged on the upper surface of the heat dissipation housing (21); The upper surface of the heat dissipation shell (21) is also provided with a gap (211) to allow air to circulate inside and outside the heat dissipation shell (21).

2. The bearing heat dissipation device according to claim 1, characterized in that: The upper surface of the heat dissipation housing (21) is provided with a baffle (23), one side of the baffle (23) is provided with the fin (22), and the fin (22) is close to the second side surface; The baffle (23) is a bent plate bent toward the fin (22); The second opening of the heat dissipation channel (212) is arranged between the fin (22) and the baffle (23).

3. The bearing heat dissipation device according to claim 1, characterized in that: The bearing assembly (1) comprises a bearing inner ring (11) and a bearing outer ring (14) sleeved on the outer side of the bearing inner ring (11); the axial length of the bearing inner ring (11) is longer than the axial length of the bearing outer ring (14); The bearing inner ring (11) has a first end and a second end opposite to each other, the first end is close to the first side surface, and the second end is close to the second side surface; A heat sink (12) and a plurality of protrusions (13) are provided on the side surface of the bearing inner ring (11); the heat sink (12) is close to the first end; and the protrusions (13) extend in the axial direction.

4. The bearing heat dissipation device according to claim 1, characterized in that: The wind power assembly (3) comprises a first wind power ring (31) and a second wind power ring (32); The first wind ring (31) is close to the first side surface, and the second wind ring (32) is close to the second side surface.

5. The bearing heat dissipation device according to claim 4, characterized in that: The first wind ring (31) comprises a first ring body (311) composed of two concentric rings of different diameters, the inner ring and the outer ring of the first ring body (311) being connected by a plurality of first blades (312) arranged at intervals, and the first blades (312) being arranged at an angle; A protrusion (313) is provided on the inner wall of the inner ring of the first ring body (311).

6. The bearing heat dissipation device according to claim 4, characterized in that: The second wind ring (32) comprises a second ring body (321) composed of two concentric rings of different diameters, the inner ring and the outer ring of the second ring body (321) are connected by a plurality of second blades (322) arranged at intervals, and the second blades (322) are arranged obliquely; A metal flexible bending sheet (323) is provided on the inner wall of the inner ring of the second ring body (321).

7. The bearing heat dissipation device according to claim 4, characterized in that: The telescopic assembly (4) comprises a first telescopic column (41) and a telescopic ring (42); The first telescopic column (41) is arranged on the bearing assembly (1), and the first telescopic column (41) is extended to connect the bearing assembly (1) and the first wind ring (31); The telescopic ring (42) is arranged on the heat dissipation housing (21), and the telescopic ring (42) is extended to enable the second wind ring (32) to be connected to the bearing assembly (1).

8. The bearing heat dissipation device according to claim 7, characterized in that: The telescopic ring (42) comprises a circular ring (421) and a second telescopic column (422); The second telescopic column (422) has the same structure as the first telescopic column (41).

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