Heat dissipation type bearing

Abstract

The invention discloses a heat dissipation type bearing which comprises a rotating shaft, a bearing inner ring, a bearing outer ring and a heat dissipation piece. The bearing inner ring is fixedly mounted on the rotating shaft; the bearing outer ring is arranged outside the bearing inner ring in a sleeving manner, and a plurality of rolling bodies are movably arranged between the bearing outer ring and the bearing inner ring; the heat dissipation piece is arranged on the bearing outer ring, and the heat dissipation piece is used for dissipating heat by utilizing air flow generated by relative rotation between the bearing inner ring and the bearing outer ring. When the bearing disclosed by the invention works, relative rotation is generated between the bearing inner ring and the bearing outer ring, so that air flow is generated, and the heat dissipation piece dissipates heat of the bearing body by utilizing the air flow, so that a cooling effect on the bearing body is achieved, and the service life of the bearing in high-speed operation is prolonged.

Description

Technical Field

[0001] The invention relates to the field of bearings, and in particular to a heat dissipation bearing. Background Art

[0002] In modern industry, bearings are one of the indispensable components. They not only ensure the normal operation of the machine, but also reduce friction and wear, thereby improving the life and efficiency of the machine. With the continuous advancement of science and technology, bearings are also constantly innovating and developing to adapt to the ever-changing market demand. Bearing heat dissipation refers to taking away the heat generated by the bearing through the heat dissipation structure to ensure the normal operation of the bearing. Bearings will generate high temperatures during high-speed rotation. If the heat is not dissipated in time, the bearing temperature will rise, affecting the service life and performance of the bearing.

[0003] In the publication number CN209510934U, a bearing heat dissipation structure is disclosed, which includes a transmission shaft horizontally arranged in the middle position, a bearing seat coaxially arranged horizontally on the outside of the transmission shaft, a fixed mounting ring is arranged on the right end of the outer side of the bearing seat, and a plurality of heat sinks are vertically arranged at equal intervals on the outer side of the bearing seat on the left side of the fixed mounting ring. Bearings are symmetrically arranged at both ends of the inner side of the bearing seat to match the transmission shaft. The heat generated by the bearing is dissipated to the outside air through the aluminum heat sink. Since multiple groups of aluminum heat sinks increase the heat exchange area, the heat dissipation efficiency is significantly increased, so that real-time heat dissipation of the bearing is achieved during use, the bearing is prevented from locking, stable operation is ensured, and the bearing is realized. Rapid cooling after use can eliminate the problem of heat accumulation and cracking. However, during use, the above-mentioned device only dissipates heat to the outer ring of the bearing through the heat sink and the heat dissipation holes. During use, it is difficult to ventilate the outer surface to increase its heat dissipation effect. When the bearing rotates at high speed, it is difficult for the external air to circulate effectively, resulting in limited heat dissipation effect. During use, the above-mentioned device is difficult to ventilate and dissipate heat to the inner cavity of the inner ring of the bearing. When the bearing rotates at high speed, friction heat will be generated, which makes the internal temperature too high. Long-term high-temperature operation can easily cause deformation or damage to internal components. Therefore, it is necessary to provide a new bearing high-speed rotation heat dissipation structure to solve the above technical problems. Summary of the invention

[0004] The object of the present invention is to provide a heat dissipation bearing to achieve heat dissipation of the bearing under high-speed operation and extend the service life of the bearing.

[0005] In order to solve the above technical problems, the present invention provides a heat dissipation bearing, comprising a rotating shaft, a bearing inner ring, a bearing outer ring and a heat dissipation member;

[0006] The bearing inner ring is fixedly mounted on the rotating shaft;

[0007] The outer ring of the bearing is sleeved on the outside of the inner ring of the bearing, and a plurality of rolling bodies are movably arranged between the outer ring of the bearing and the inner ring of the bearing;

[0008] The heat sink is arranged on the outer ring of the bearing, and the heat sink uses the airflow generated by the relative rotation between the inner ring of the bearing and the outer ring of the bearing to dissipate heat.

[0009] Furthermore, the inner ring of the bearing is provided with a mounting groove adapted to the rolling element, and the inner ring of the bearing and the rolling element form a movable engaging connection mechanism.

[0010] Furthermore, fixed blades are arranged at both the front and rear ends of the rolling body, the fixed blades are fixedly connected to the inner ring of the bearing, and the height of the fixed blades is lower than the rolling body.

[0011] Furthermore, the connection between the inner ring of the bearing and the outer ring of the bearing is filled with grease.

[0012] Furthermore, the inner cavity of the outer ring of the bearing is provided with a slot adapted to the rolling element, the rolling element and the outer ring of the bearing form a movable engaging connection mechanism, and the rolling element fits inside the outer ring of the bearing.

[0013] Furthermore, the heat sink includes air guide plates arranged on the left and right sides of the bearing outer ring, and heat sink plates are installed on the outer surface of the bearing outer ring.

[0014] Furthermore, multiple groups of air guide vanes are evenly distributed on the left and right sides of the outer surface of the bearing outer ring, and the multiple groups of air guide vanes are all inclined at 15°-30° to the mounting plane of the bearing outer ring.

[0015] Furthermore, the heat sink is made of aluminum heat sink.

[0016] Furthermore, a ventilation hole is provided in the middle of the two groups of air guide plates, and the ventilation hole passes through the outer ring of the bearing.

[0017] Compared with the prior art, the present invention has at least the following beneficial effects:

[0018] (1) The present invention is provided with a heat sink, specifically, through air guides and vents, so that when the bearing rotates at high speed, the air flow is accelerated through the air guides, and the air is introduced into the bearing, thereby accelerating the air flow through the vents 603 and the outer surface of the outer ring of the bearing, thereby effectively cooling the outer ring of the bearing. By providing a heat sink, the heat sink is an aluminum heat sink, which has good thermal conductivity, and can quickly transfer heat from the heat source to the heat dissipation surface, and take away the heat through wind flow or passive heat dissipation, thereby improving the effectiveness of the device in heat dissipation of the outer ring of the bearing;

[0019] (2) The present invention is provided with fixed blades to accelerate the air flow speed of the inner ring of the bearing during high-speed rotation, thereby effectively cooling the inner ring of the bearing and the rolling element. The outer ring of the bearing is sleeved on the outer surface of the rolling element, and the rolling element and the outer ring of the bearing are convenient for transferring heat during use, thereby reducing the temperature of the rolling element, avoiding deformation or damage of the rolling element caused by long-term high temperature, and improving the service life of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the end surface structure of the heat dissipation bearing of the present invention;

[0021] Figure 2 It is a schematic diagram of the side structure of the heat dissipation bearing of the present invention;

[0022] Figure 3 It is a schematic diagram of the exploded structure of the heat dissipation bearing of the present invention;

[0023] Figure 4 It is a schematic diagram of the cross-sectional structure of the outer ring of the heat dissipation bearing of the present invention. DETAILED DESCRIPTION

[0024] The heat dissipation bearing of the present invention will be described in more detail below in conjunction with a schematic diagram, wherein a preferred embodiment of the present invention is shown, and it should be understood that those skilled in the art may modify the present invention described herein while still achieving the advantageous effects of the present invention. Therefore, the following description should be understood as being widely known to those skilled in the art and not as a limitation of the present invention.

[0025] The present invention is described in more detail in the following paragraphs by way of example with reference to the accompanying drawings. The advantages and features of the present invention will become more apparent from the following description. It should be noted that the accompanying drawings are in very simplified form and are not in exact proportions, and are only used to facilitate and clearly assist in illustrating the purpose of the embodiments of the present invention.

[0026] like Figures 1 to 4 As shown, an embodiment of the present invention provides a heat dissipation bearing, comprising a rotating shaft 1, a bearing inner ring 2, a bearing outer ring 5 and a heat dissipation member 6.

[0027] Specifically, the bearing inner ring 2 is fixedly mounted on the rotating shaft 1 .

[0028] The bearing outer ring 5 is sleeved on the outside of the bearing inner ring 2 , and a plurality of rolling bodies 3 are movably arranged between the bearing outer ring 5 and the bearing inner ring 2 .

[0029] The heat sink 6 is disposed on the bearing outer ring 5 , and the heat sink 6 uses the airflow generated by the relative rotation between the bearing inner ring 2 and the bearing outer ring 5 to dissipate heat.

[0030] In this embodiment, the bearing inner ring 2, the bearing outer ring 5, and the rolling element 3 constitute the bearing body, and the heat sink 6 is installed on the bearing body. When the bearing is working, air flow is generated due to the relative rotation between the bearing inner ring 2 and the bearing outer ring 5. The heat sink 6 uses the air flow to dissipate the heat of the bearing body, thereby cooling the bearing body.

[0031] It should be noted that the rotating shaft 1 is the rotating shaft when the bearing body is installed. During the rotation of the rotating shaft 1, high-speed relative rotation is generated between the bearing inner ring 2 and the bearing outer ring 5, and the airflow generated by the high-speed rotation is used to dissipate the heat of the bearing body.

[0032] Furthermore, the bearing inner ring 2 is provided with a mounting groove adapted to the rolling element 3, and the bearing inner ring 2 and the rolling element 3 form a movable engaging connection mechanism. The rolling element 3 may be a ball.

[0033] In this embodiment, the bearing inner ring 2 and the rolling element 3 form a movable engaging connection mechanism, which facilitates the positioning and engaging of the rolling element 3 during installation, thereby facilitating quick installation.

[0034] Furthermore, fixed blades 4 are arranged at both the front and rear ends of the rolling body 3 , and the fixed blades 4 are fixedly connected to the bearing inner ring 2 , and the height of the fixed blades 4 is lower than that of the rolling body 3 .

[0035] In this embodiment, by providing a fixed blade 4, the air flow speed of the bearing inner ring 2 is accelerated during high-speed rotation, thereby effectively cooling the bearing inner ring 2 and the rolling element 3. By making the height of the fixed blade 4 lower than the rolling element 3, the fixed blade 4 is prevented from contacting the bearing outer ring 5 during use, thereby affecting the use of the device.

[0036] Furthermore, the connection between the bearing inner ring 2 and the bearing outer ring 5 is filled with grease.

[0037] In this embodiment, by adopting the above technical solution and filling with grease, the friction between the bearings is reduced, thereby reducing energy loss and component wear, and having the functions of preventing corrosion and waterproofing and dustproofing. Therefore, the service life of the bearings can be extended.

[0038] Furthermore, the inner cavity of the bearing outer ring 5 is provided with a slot adapted to the rolling element 3 , and the rolling element 3 and the bearing outer ring 5 form a movable engaging connection mechanism, and the rolling element 3 fits the inside of the bearing outer ring 5 .

[0039] In this embodiment, by adopting the above-mentioned technical solution, the rolling body 3 and the bearing outer ring 5 form an active locking connection mechanism, which is convenient for fixing with the bearing outer ring 5 during use, and avoids the rolling body 3 from falling off and affecting the use of the device. The rolling body 3 fits the inside of the bearing outer ring 5, which facilitates the transfer of heat during high-speed rotation, thereby reducing the temperature of the rolling body 3, avoiding deformation or damage of the rolling body 3 caused by long-term high temperature, and improving the service life of the device.

[0040] Optionally, the heat sink 6 includes air guide plates 601 arranged on the left and right sides of the bearing outer ring 5 , and heat sinks 602 are installed on the outer surface of the bearing outer ring 5 .

[0041] By adopting the above technical solution, the air guide piece 601 can be used to accelerate the air flow when the bearing rotates at high speed, introduce the air into the interior of the bearing, accelerate the air flow on the outer surface of the bearing outer ring 5, thereby effectively cooling the bearing outer ring 5. By providing a heat sink 602, the bearing outer ring 5 can be effectively dissipated.

[0042] In a specific embodiment, multiple groups of air guide vanes 601 are evenly distributed on the left and right sides of the outer surface of the bearing outer ring 5 , and the multiple groups of air guide vanes 601 are all inclined at 15°-30° to the installation plane of the bearing outer ring 5 .

[0043] By adopting the above technical solution, multiple groups of air guide blades 601 are evenly distributed on the left and right sides of the outer surface of the bearing outer ring 5. The multiple groups of air guide blades 601 are all inclined by 15-30 degrees, which is convenient for improving the effectiveness of air guiding of the device. The inclination angle of the air blades can affect the speed and direction of the airflow, thereby improving the ventilation effect.

[0044] In addition, the heat sink 602 is made of aluminum heat sink.

[0045] By adopting the above technical solution, an aluminum heat sink 602 is used through the heat sink 602. The aluminum heat sink 602 has good thermal conductivity and can quickly transfer heat from the heat source to the heat dissipation surface, and take the heat away through wind flow or passive heat dissipation, thereby improving the effectiveness of the device in dissipating heat for the bearing outer ring 5.

[0046] Furthermore, ventilation holes 603 are provided in the middle of the two groups of air guide plates 601 , and the ventilation holes 603 penetrate the outer ring 5 of the bearing.

[0047] By adopting the above technical solution and providing the vent hole 603, the circulation of gas can be accelerated, and the heat generation inside the bearing can be reduced, thereby lowering the temperature of the bearing, and reducing the vibration and swing inside the bearing, thereby improving the stability of the bearing.

[0048] Compared with the prior art, the present invention has at least the following beneficial effects:

[0049] (1) The present application is provided with a heat sink, and through air guides and vents, when the bearing rotates at high speed, the air flow is accelerated through the air guides, and the air is introduced into the interior of the bearing, and the air flow through the vents and the outer surface of the outer ring of the bearing is accelerated, thereby effectively cooling the outer ring of the bearing. The heat sink is provided, and the heat sink is an aluminum heat sink. The aluminum heat sink has good thermal conductivity, and can quickly transfer heat from the heat source to the heat dissipation surface, and take away the heat through wind flow or passive heat dissipation, thereby improving the effectiveness of the device in heat dissipating the outer ring of the bearing;

[0050] (2) By providing fixed blades, the air flow rate of the inner ring of the bearing can be accelerated during high-speed rotation, thereby effectively cooling the inner ring of the bearing and the rolling element. The outer ring of the bearing is sleeved on the outer surface of the rolling element, and the rolling element and the outer ring of the bearing can transfer heat during use, thereby reducing the temperature of the rolling element, avoiding deformation or damage of the rolling element caused by long-term high temperature, and improving the service life of the device.

[0051] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.

Claims

1. A heat dissipation bearing, characterized in that: It includes a rotating shaft, a bearing inner ring, a bearing outer ring and a heat sink; The bearing inner ring is fixedly mounted on the rotating shaft; The outer ring of the bearing is sleeved on the outside of the inner ring of the bearing, and a plurality of rolling bodies are movably arranged between the outer ring of the bearing and the inner ring of the bearing; The heat sink is arranged on the outer ring of the bearing, and the heat sink uses the airflow generated by the relative rotation between the inner ring of the bearing and the outer ring of the bearing to dissipate heat.

2. The heat dissipation bearing according to claim 1, characterized in that: The inner ring of the bearing is provided with a mounting groove matched with the rolling body, and the inner ring of the bearing and the rolling body form a movable engaging connection mechanism.

3. The heat dissipation bearing according to claim 1, characterized in that: Fixed blades are arranged at both the front and rear ends of the rolling body. The fixed blades are fixedly connected to the inner ring of the bearing, and the height of the fixed blades is lower than that of the rolling body.

4. The heat dissipation bearing according to claim 1, characterized in that: The connection between the bearing inner ring and the bearing outer ring is filled with grease.

5. The heat dissipation bearing according to claim 1, characterized in that: The inner cavity of the bearing outer ring is provided with a slot matched with the rolling body, the rolling body and the bearing outer ring form a movable engaging connection mechanism, and the rolling body is fitted inside the bearing outer ring.

6. The heat dissipation bearing according to claim 1, characterized in that: The heat sink comprises air guide plates arranged on the left and right sides of the outer ring of the bearing, and the outer surface of the outer ring of the bearing is provided with heat sink plates.

7. The heat dissipation bearing according to claim 6, characterized in that: The heat sink is made of aluminum heat sink.

8. The heat dissipation bearing according to claim 6, characterized in that: A plurality of groups of air guide vanes are evenly distributed on the left and right sides of the outer surface of the bearing outer ring, and the plurality of groups of air guide vanes are all inclined at 15°-30° to the mounting plane of the bearing outer ring.

9. The heat dissipation bearing according to claim 8, characterized in that: A vent hole is provided in the middle of the two groups of air guide plates, and the vent hole passes through the outer ring of the bearing.

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