Low-calorific-value bearing retainer

Abstract

The utility model relates to the technical field of bearing retainers, and discloses a low-calorific-value bearing retainer which comprises an outer ring and an inner ring, a retainer body is rotatably arranged between the outer ring and the inner ring, a plurality of mounting grooves are fixedly formed in the retainer body, and roller pins are rotatably connected into the mounting grooves. A plurality of heat dissipation holes are formed in one side of the retainer in a penetrating mode, a plurality of heat dissipation fins are fixedly connected to the two sides of the retainer, and pin rollers are rotationally arranged between the multiple roller pins in pairs. According to the low-calorific-value bearing retainer, through the arrangement of the heat dissipation holes and the heat dissipation fins, the contact area between the retainer and air is increased during rotation, the heat dissipation capacity of the bearing frame is improved, and therefore heat generated in the working process of a bearing is reduced, and the durability and stability of the bearing are improved; according to the utility model, the rollers can roll among the needle rollers, so that the rolling is smoother, the friction and the resistance are reduced, and the generation of heat is reduced.

Description

Technical Field

[0001] The present application relates to the technical field of bearing retainers, in particular to a low-heat-generating bearing retainer. Background Art

[0002] A bearing cage is a bearing component that partially wraps all or part of the rolling elements and moves with them to isolate the rolling elements and usually guide the rolling elements and keep them in the bearing.

[0003] The existing patent (publication number: CN217462911U) discloses a cylindrical roller bearing cage with low heat generation. The bearing cage includes two annular frames arranged opposite to each other and a plurality of window beams connecting the two annular frames. Window holes for installing rollers are formed between adjacent window beams. The window beams are sequentially arranged with a first oil collecting groove arranged in a recessed manner and a first fixing portion arranged in a protruding manner along the extension direction thereof. There is a gap between the first oil collecting groove and the roller at the corresponding window hole, and the first fixing portion is in contact with and cooperates with the roller at the corresponding window hole.

[0004] The above-mentioned comparative document points out that the first oil collecting tank is set at the connection between the window beam and the annular frame of the device. The first oil collecting tank is set at the connection, which is convenient for storing lubricating oil and can also avoid the first fixed part being unable to contact the roller completely, resulting in structural waste. The first oil collecting tank is set at intervals, and the roller can be evenly lubricated when the roller rotates, and the roller is more stable when rotating. However, the roller of the device will still rub against the annular frame when rotating, which may lead to untimely lubrication when running under high load or high speed. The friction between the roller and the fixed part may still generate a lot of heat, which cannot be effectively dissipated, resulting in reduced bearing performance or even damage. Utility Model Content

[0005] In response to the shortcomings of the prior art, the present application provides a low-heat-generating bearing retainer having advantages such as easy heat dissipation. It solves the problem that the roller of the device still rubs against the annular frame when rotating, which may lead to untimely lubrication when running under high load or high speed. The friction between the roller and the fixed part may still generate a large amount of heat, which cannot be effectively dissipated, resulting in a decline in bearing performance or even damage.

[0006] To achieve the above-mentioned purpose, the present application provides the following technical solutions: a low-heat bearing retainer, comprising an outer ring and an inner ring, a retainer is rotatably arranged between the outer ring and the inner ring, a plurality of mounting grooves are fixedly opened inside the retainer, and needle rollers are rotatably connected inside the plurality of mounting grooves, a plurality of heat dissipation holes are penetrated through one side of the retainer, a plurality of heat sinks are fixedly connected on both sides of the retainer, and rollers are rotatably arranged between the plurality of needle rollers in groups of two.

[0007] Through the above scheme, by setting the heat dissipation holes and heat sinks, the contact area between the retaining frame and the air is increased during rotation, and the air is stirred by the heat sink to increase the air flow rate, thereby improving the heat dissipation capacity of the bearing frame, thereby reducing the heat generated by the bearing during operation, improving the durability and stability of the bearing, and through the setting of the rollers, the rolling of the rollers between the needle rollers makes the rolling smoother, reduces friction and resistance, and thus reduces the generation of heat.

[0008] Furthermore, an oil storage tank is fixedly provided inside the inner ring.

[0009] Through the above solution, the design of the oil storage tank enables the bearing to store lubricating oil during operation, so that it can be continuously lubricated during rotation.

[0010] Furthermore, a plurality of first rolling grooves are fixedly formed on the outer wall of the inner ring.

[0011] With the above solution, the first rolling groove is provided to enable the roller to roll inside.

[0012] Furthermore, a plurality of rotation grooves are fixedly opened inside the inner ring, and an oil coating roller is rotatably connected inside each of the plurality of rotation grooves.

[0013] Through the above scheme, the oiling roller rotates in the rotating groove to apply the lubricating oil inside the degreasing groove to the roller surface.

[0014] Furthermore, a plurality of second rolling grooves are fixedly provided on the inner wall of the outer ring.

[0015] With the above solution, the second rolling groove is provided to enable the roller to roll inside.

[0016] Furthermore, an oil filling port is fixedly opened on one side of the inner ring.

[0017] Through the above solution, the oil filling port is used to inject lubricating oil into the oil storage tank.

[0018] Furthermore, a sealing cover is threadedly connected to the inside of the oil filling port.

[0019] Through the above solution, the sealing cover is used to seal the oil filling port.

[0020] Furthermore, the roller is rotatably arranged inside the first rolling groove and the second rolling groove.

[0021] Through the above solution, the contact between the roller and the first rolling groove and the second rolling groove is rolling contact, which reduces friction and wear, thereby increasing the service life of the bearing.

[0022] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0023] The low-heat-generating bearing cage increases the contact area between the cage and the air when rotating by providing heat dissipation holes and heat sinks, and stirs the air through the heat sink to increase the air flow rate, thereby improving the heat dissipation capacity of the bearing cage, thereby reducing the heat generated by the bearing during operation, improving the durability and stability of the bearing, and through the provision of rollers, the rolling of the rollers between the needle rollers makes the rolling smoother, reduces friction and resistance, and thus reduces the generation of heat. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a schematic diagram of the overall structure of this application;

[0025] Figure 2 A schematic diagram of the cage structure of the present application;

[0026] Figure 3 A schematic diagram of the roller installation structure of the present application;

[0027] Figure 4 This is a schematic diagram of the inner ring structure of the present application;

[0028] Figure 5 This is a schematic diagram of the oil filling port structure of the present application.

[0029] In the figure:

[0030] 1. Outer ring; 2. Inner ring; 3. Cage; 4. Mounting groove; 5. Needle roller; 6. Heat dissipation hole; 7. Heat sink; 8. Roller; 9. Oil storage tank; 10. First rolling groove; 11. Rotating groove; 12. Oiling roller; 13. Second rolling groove; 14. Oil filling port; 15. Sealing cover. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0032] See also Figure 1 , Figure 2 and Figure 3The low heat generation bearing retainer in this embodiment includes an outer ring 1 and an inner ring 2, a retainer 3 is rotatably arranged between the outer ring 1 and the inner ring 2, a plurality of mounting grooves 4 are fixedly opened inside the retainer 3, and a plurality of mounting grooves 4 are rotatably connected with needle rollers 5 inside, and the needle rollers 5 slide and roll inside the mounting grooves 4, a plurality of heat dissipation holes 6 are opened through one side of the retainer 3, and the heat dissipation holes 6 are used to allow air to pass through so as to achieve a better heat dissipation effect, a plurality of heat sinks 7 are fixedly connected on both sides of the retainer 3, and the heat sinks 7 increase the contact area between the retainer 3 and the air when rotating, thereby improving the heat dissipation capacity, and rollers 8 are rotatably arranged between the plurality of needle rollers 5 in groups of two.

[0033] See also Figure 4 An oil storage tank 9 is fixedly opened inside the inner ring 2. The design of the oil storage tank 9 enables the bearing to store lubricating oil during operation and to continuously lubricate during rotation. A plurality of first rolling grooves 10 are fixedly opened on the outer wall of the inner ring 2. The first rolling grooves 10 are configured to enable the roller 8 to roll inside. A plurality of rotating grooves 11 are fixedly opened inside the inner ring 2. An oil coating roller 12 is rotatably connected to the interior of the plurality of rotating grooves 11. The oil coating roller 12 rotates in the rotating grooves 11 to apply the lubricating oil inside the degreasing groove to the surface of the roller 8.

[0034] See also Figure 1 and Figure 5 A plurality of second rolling grooves 13 are fixedly provided on the inner wall of the outer ring 1, and the second rolling grooves 13 are used to make the rollers 8 roll inside. An oil filling port 14 is fixedly provided on one side of the inner ring 2, and the oil filling port 14 is used to inject lubricating oil into the oil storage tank 9. A sealing cover 15 is threadedly connected to the inner part of the oil filling port 14, and the sealing cover 15 is used to seal the oil filling port 14. The rollers 8 are rotatably arranged inside the first rolling grooves 10 and the second rolling grooves 13, and the contact between the rollers 8 and the first rolling grooves 10 and the second rolling grooves 13 is rolling contact, which reduces friction and wear, thereby increasing the service life of the bearing.

[0035] In this embodiment, the low heat generation bearing retainer increases the contact area between the retainer 3 and the air during rotation by providing the heat dissipation holes 6 and the heat sink 7, and stirs the air through the heat sink 7 to increase the air flow rate, thereby improving the heat dissipation capacity of the bearing retainer, thereby reducing the heat generated by the bearing during operation, improving the durability and stability of the bearing, and through the provision of the roller 8, the rolling of the roller 8 between the needle rollers 5 makes the rolling smoother, reduces friction and resistance, and thus reduces the generation of heat.

[0036] It should be noted that the heat sinks 7 are all made of metal aluminum, which has good thermal conductivity.

[0037] The working principle of the above embodiment is:

[0038] First, rotate the sealing cover 15 to open the oil filling port 14 and inject the lubricating oil into the oil storage tank 9. When the bearing starts to rotate, the oil coating roller 12 rotates in the rotating groove 11 to apply the lubricating oil in the oil storage tank 9 to the surface of the roller 8. The roller 8 rolls in the first rolling groove 10 and the second rolling groove 13. The lubricating oil reduces the friction between the roller 8 and the rolling groove, making the rolling smoother. The needle roller 5 slides and rolls in the mounting groove 4, and the roller 8 rolls between the needle rollers 5. These rolling contacts significantly reduce friction and resistance, and reduce heat generation. The heat dissipation holes 6 on the retaining frame 3 allow air to pass through, thereby improving the heat dissipation effect. At the same time, the heat sink 7 increases the contact area between the retaining frame 3 and the air when rotating, further improving the heat dissipation capacity. The heat generated by the bearing during operation is effectively reduced, thereby improving the durability and stability of the bearing.

[0039] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0040] Although the embodiments of the present application have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present application, and that the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A low heat generation bearing cage, comprising an outer ring (1) and an inner ring (2), characterized in that: A retaining frame (3) is rotatably arranged between the outer ring (1) and the inner ring (2); a plurality of mounting grooves (4) are fixedly provided inside the retaining frame (3); roller needles (5) are rotatably connected inside the plurality of mounting grooves (4); a plurality of heat dissipation holes (6) are penetrated through one side of the retaining frame (3); a plurality of heat dissipation fins (7) are fixedly connected on both sides of the retaining frame (3); and rollers (8) are rotatably arranged between the plurality of roller needles (5) in groups of two.

2. The low heat generation bearing retainer according to claim 1, characterized in that: An oil storage groove (9) is fixedly provided inside the inner ring (2).

3. The low heat generation bearing retainer according to claim 1, characterized in that: A plurality of first rolling grooves (10) are fixedly formed on the outer wall of the inner ring (2).

4. The low heat generation bearing retainer according to claim 1, characterized in that: A plurality of rotation grooves (11) are fixedly opened inside the inner ring (2), and an oil coating roller (12) is rotatably connected inside each of the plurality of rotation grooves (11).

5. The low heat generation bearing retainer according to claim 1, characterized in that: The inner wall of the outer ring (1) is fixedly provided with a plurality of second rolling grooves (13).

6. The low heat generation bearing retainer according to claim 1, characterized in that: An oil filling port (14) is fixedly opened on one side of the inner ring (2).

7. The low heat generation bearing retainer according to claim 6, characterized in that: The oil filling port (14) is internally threadedly connected to a sealing cover (15).

8. The low heat generation bearing retainer according to claim 1, characterized in that: The roller (8) is rotatably arranged inside the first rolling groove (10) and the second rolling groove (13).

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