High-temperature-resistant rolling bearing

Abstract

The utility model discloses a high-temperature-resistant rolling bearing, which relates to the technical field of rolling bearings and comprises a bearing inner ring and a bearing outer ring, a plurality of groups of bearing balls are arranged between the bearing inner ring and the bearing outer ring in a rolling manner, retainers are coated on the upper side and the lower side of each bearing ball, and the two groups of retainers are fixed through screws. The heat dissipation device is arranged on a bearing outer ring and used for dissipating heat in a bearing ball; the heat dissipation assembly comprises a cavity, the cavity is formed in the inner side of the bearing outer ring, a plurality of sets of cooling fins are installed in the cavity, a plurality of sets of fixing piece columns are arranged in the bearing outer ring in a sleeved mode, two sets of fixing rings are fixed in the bearing outer ring, and a heat dissipation groove is formed in the top of the bearing inner ring. Heat is conducted to the inner sides of the cooling fins through the fixing rings and the fixing piece columns, meanwhile, the cavity can be communicated with the outside through the cooling grooves, the heat of the cooling fins can be conveniently dissipated outwards, and the heat-resisting effect of the cooling fins is enhanced.

Description

Technical Field

[0001] This utility model relates to the field of rolling bearing technology, specifically a high-temperature resistant rolling bearing. Background Technology

[0002] Rolling bearings are precision mechanical components that convert the sliding friction between a rotating shaft and its housing into rolling friction, thereby reducing friction loss. Rolling bearings generally consist of four parts: an inner ring, an outer ring, rolling elements, and a cage.

[0003] Rolling bearings are installed in many mechanical devices to reduce the friction generated when the shaft components rotate. When the shaft of the device rotates, it drives the inner ring of the rolling bearing to rotate. At this time, the balls between the inner and outer rings of the bearing will rotate. When the balls rotate, the friction between the balls and the outer ring of the bearing will continuously generate heat. However, the bearings in the existing technology have a simple structure and lack their own heat dissipation structure, and often need to be cooled by external coolant. Therefore, a high-temperature resistant rolling bearing is proposed. Utility Model Content

[0004] The purpose of this invention is to overcome the shortcomings of the existing technology and provide a high-temperature resistant rolling bearing.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a high-temperature resistant rolling bearing, comprising an inner bearing ring and an outer bearing ring, wherein a plurality of bearing balls roll between the inner and outer bearing rings, and retainers are provided on both the upper and lower sides of each bearing ball, and the two sets of retainers are fixed together by screws; the bearing also includes:

[0006] A heat dissipation component, which is located on the outer ring of the bearing, is used to dissipate heat from inside the bearing balls;

[0007] The heat dissipation component includes a cavity located inside the outer ring of the bearing. Several sets of heat sinks are installed inside the cavity. Several sets of fixing posts are fitted inside the outer ring of the bearing. Two sets of fixing rings are fixed inside the outer ring of the bearing. A heat dissipation groove is provided on the top of the inner ring of the bearing.

[0008] As mentioned above, the bearing inner ring, bearing outer ring, and bearing balls are made of heat-resistant bearing steel, and the contact surfaces of the bearing inner ring, bearing outer ring, and bearing balls are coated with grease.

[0009] As described above, the retainer is made of black iron material, one side of the retainer is in contact with the fixing ring, and thermal grease is applied between the retainer and the fixing ring.

[0010] As described above, one end of the fixing post is connected to the fixing ring, and both the fixing post and the fixing ring are made of thermally conductive material. The other end of the fixing post extends into the cavity and is connected to the heat sink.

[0011] As described above, the heat dissipation groove penetrates the outer ring of the bearing and communicates with the cavity.

[0012] Compared with existing technologies, this high-temperature resistant rolling bearing has the following advantages:

[0013] I. This utility model generates heat when the bearing balls roll. At this time, the retainer can absorb the heat on the surface of the bearing balls. At the same time, the retainer can use thermal grease to conduct the heat to the retaining ring, and then conduct the heat to the inner side of the heat sink through the retaining ring and the retaining post. Meanwhile, the heat sink groove can connect the cavity to the outside, which facilitates the heat dissipation of the heat sink and enhances its heat resistance.

[0014] Second, this utility model uses heat-resistant bearing steel for the inner ring, outer ring, and balls of the bearing, giving them sufficiently high high-temperature hardness, high-temperature wear resistance, high-temperature contact fatigue strength, oxidation resistance, and high-temperature dimensional stability. In addition, the retainer is made of black iron, which, in addition to having good heat absorption characteristics, can withstand high temperatures and improve its service life.

[0015] Other advantages, objectives and features of this invention will be set forth in part in the description which follows, and in part will be apparent to those skilled in the art from the following examination or study, or may be taught from the practice of this invention. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0017] Figure 2 This is a cross-sectional view of the side of the present invention;

[0018] Figure 3 This utility model Figure 2 Enlarged structural diagram at point A;

[0019] Figure 4 This is a cross-sectional view of the top of the present invention.

[0020] In the diagram: 1. Inner ring of bearing; 2. Outer ring of bearing; 3. Bearing ball; 4. Retainer; 5. Cavity; 6. Heat sink; 7. Fixing post; 8. Retaining ring; 9. Heat dissipation groove. Detailed Implementation

[0021] 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.

[0022] like Figure 1-4 As shown, this utility model provides a high-temperature resistant rolling bearing, including an inner ring 1 and an outer ring 2. A plurality of sets of bearing balls 3 roll between the inner ring 1 and the outer ring 2. Each bearing ball 3 has a retainer 4 covering its upper and lower sides. Two sets of retainers 4 are fixed together by screws. The bearing also includes:

[0023] A heat dissipation component, which is disposed on the outer ring 2 of the bearing, is used to dissipate heat inside the bearing balls 3;

[0024] The heat dissipation component includes a cavity 5, which is located inside the outer ring 2 of the bearing. Several sets of heat sinks 6 are installed inside the cavity 5. Several sets of fixing posts 7 are sleeved inside the outer ring 2 of the bearing. Two sets of fixing rings 8 are fixed inside the outer ring 2 of the bearing. A heat dissipation groove 9 is opened on the top of the inner ring 1 of the bearing.

[0025] The retainer 4 can absorb the heat from the surface of the bearing ball 3, while the retaining ring 8 and the retaining post 7 can conduct the heat to the inside of the heat sink 6. At the same time, the heat sink 9 can dissipate the heat inside the cavity 5 to the outside, which facilitates heat dissipation of the bearing ball 3 and makes the bearing ball 3 have higher high temperature resistance.

[0026] like Figure 2 As shown, the bearing inner ring 1, bearing outer ring 2, and bearing balls 3 are made of heat-resistant bearing steel, and the contact surfaces of the bearing inner ring 1, bearing outer ring 2, and bearing balls 3 are coated with grease.

[0027] Through the design of the bearing inner ring 1, bearing outer ring 2 and bearing balls 3, heat-resistant bearing steel, also known as high-temperature bearing steel, has sufficiently high high-temperature hardness, high-temperature wear resistance, high-temperature contact fatigue strength, oxidation resistance and high-temperature dimensional stability, which can further improve its service life.

[0028] like Figure 2 , 3 As shown, the retainer 4 is made of black iron material. One side of the retainer 4 is in contact with the retaining ring 8, and thermal grease is applied between the retainer 4 and the retaining ring 8.

[0029] Through the design of the retainer 4, the black iron material not only has good heat absorption properties, but can also withstand high temperatures. Furthermore, the thermal grease applied between the retainer 4 and the fixing ring 8 can conduct the heat inside the retainer 4 to the inside of the fixing ring 8.

[0030] like Figure 3 , 4 As shown, one end of the fixing post 7 is connected to the fixing ring 8, and both the fixing post 7 and the fixing ring 8 are made of thermally conductive material. The other end of the fixing post 7 extends into the cavity 5 and is connected to the heat sink 6.

[0031] The design of the fixing post 7 and the fixing ring 8 allows heat to be conducted from the fixing post 7 to the heat sink 6 through the fixing ring 8, thus facilitating the dissipation of heat through the heat sink 6.

[0032] like Figure 1 , 3 As shown, the heat dissipation groove 9 passes through the outer ring 2 of the bearing and communicates with the cavity 5.

[0033] The design of the heat dissipation slot 9 allows the cavity 5 to be in the same condition as the outside air, which facilitates the dissipation of heat from the inside of the heat sink 6.

[0034] Working principle:

[0035] Heat is generated when the bearing ball 3 rolls. At this time, the retainer 4 can absorb the heat on the surface of the bearing ball 3. At the same time, the retainer 4 can use thermal grease to conduct the heat to the retaining ring 8, and conduct the heat to the inside of the heat sink 6 through the retaining ring 8 and the retaining post 7. Meanwhile, the heat sink 9 can connect the cavity 5 to the outside, which facilitates the heat dissipation of the heat sink 6, improves its heat dissipation effect, and makes the bearing ball 3 have higher high temperature resistance.

[0036] 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 high-temperature-resistant rolling bearing comprising an inner bearing ring (1) and an outer bearing ring (2), between which a plurality of groups of bearing balls (3) are rolling, the upper and lower sides of the bearing balls (3) being covered with retainers (4), the two groups of retainers (4) being fixed by screws, characterized in that, Also include: Heat dissipation assembly, which is arranged on the bearing outer ring (2), is used for emitting heat inside the bearing ball (3); Wherein, the heat dissipation assembly includes cavity (5), the cavity (5) is arranged in the inside of bearing outer ring (2), the inside of the cavity (5) is installed with several groups of heat dissipation fins (6), the inside of the bearing outer ring (2) is sleeved with several groups of fixed part column (7), the inside of the bearing outer ring (2) is fixed with two groups of fixed ring (8), the top of the bearing inner ring (1) is provided with heat dissipation groove (9).

2. A high temperature resistant rolling bearing according to claim 1, characterized in that: The bearing inner ring (1), bearing outer ring (2) and bearing ball (3) are made of heat-resistant bearing steel, and the contact surface of the bearing inner ring (1), bearing outer ring (2) and bearing ball (3) is coated with lubricating grease.

3. The high temperature resistant rolling bearing of claim 1, wherein: The retainer (4) is made of black iron material, one side of the retainer (4) is in contact with the fixed ring (8), and the retainer (4) and the fixed ring (8) are coated with heat-conducting silicone grease.

4. The high temperature resistant rolling bearing of claim 1, wherein: One end of the fixed part column (7) is connected with the fixed ring (8), and the fixed part column (7) and the fixed ring (8) are made of heat-conducting material, the other end of the fixed part column (7) extends to the inside of the cavity (5) and is connected with the heat dissipation fin (6).

5. The high temperature resistant rolling bearing of claim 1, wherein: The heat dissipation groove (9) penetrates through the bearing outer ring (2) and communicates with the cavity (5).

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