High-efficiency heat-dissipation bearing retainer

Abstract

The utility model provides a kind of high-efficiency heat dissipation bearing retainer, belong to bearing retainer technical field, to solve the existing bearing retainer, when cylindrical bearing high-speed rotation, it is difficult to retain, easy to throw out and cannot backflow, leading to the problem of lubrication failure, heat accumulation. Including retainer main body, pocket, upper seal ring, connecting block, first through-hole, heat dissipation assembly and connecting assembly, the pocket is provided with multiple groups, multiple the pocket is opened in the inside of retainer main body;The upper seal ring is arranged in the top of retainer main body;The connecting block is provided with multiple groups, multiple the connecting block is fixedly installed in the top of retainer main body;Multiple the first through-hole is set, multiple the first through-hole is transversely opened in the inside of retainer main body;The heat dissipation assembly is arranged in the inside of retainer main body;The connecting assembly is arranged on the upper portion of retainer main body.The utility model has the advantages of high-efficiency heat dissipation, reduce wear, maintenance is convenient and the like.

Description

Technical Field

[0001] This utility model belongs to the field of bearing cage technology, and more specifically, it relates to a high-efficiency heat dissipation bearing cage. Background Technology

[0002] Bearings are commonly used components in mechanical transmissions, and their performance directly affects the operating efficiency and lifespan of machinery. The cage, as an important part of the bearing, is mainly used to isolate and guide the rolling elements, ensuring their even distribution and reducing friction and wear between them. Existing bearing cages primarily consist of a main frame and pockets. The main frame is a ring-shaped or frame-like base structure made of metal or non-metal materials, serving as the overall support structure and fixing and connecting other functional components. The pockets are through holes or grooves evenly distributed on the cage body, their shape matching the rolling elements.

[0003] Existing application number CN202320954546.5 discloses a bearing cage, including a frame body comprising a top ring, a bottom ring, and a plurality of support members evenly distributed circumferentially between the top and bottom rings. Windows for mounting rolling elements are formed between adjacent support members. The cage includes an axial limiting mechanism and a radial limiting mechanism. The radial limiting mechanism includes a block disposed on the top ring and a corresponding slot located on the bottom ring. Adjacent upper and lower frame members are axially fixed by the insertion and engagement of the block and the slot. The radial limiting mechanism includes a retaining spring. The block has a corresponding retaining groove. After the block is inserted into the slot, the retaining groove extends beyond the slot, and the axial fixation of adjacent upper and lower frame members is achieved by the retaining spring engaging with the retaining groove. This utility model provides a bearing cage in which multiple cages can be combined and move synchronously as needed.

[0004] Based on the above, existing bearing cages are mainly used to isolate and guide rolling elements, so that the rolling elements are evenly distributed and the friction and wear between the rolling elements are reduced. However, when the cylindrical bearing rotates at high speed, due to the low surface roughness of the inner wall of the cage pocket, the lubricating grease is not easy to form a stable oil film in the pocket. Under the action of centrifugal force during high-speed rotation, the grease is easily thrown out from the inner wall of the pocket. Moreover, after the grease is squeezed out to the outside of the pocket, due to the lack of an effective flow guiding structure, it is not easy to flow back to the contact area between the inner wall of the pocket and the rolling elements, which affects the grease lubrication effect and aggravates the formation of heat accumulation inside the bearing. Utility Model Content

[0005] To address the aforementioned technical problems, this utility model provides a high-efficiency heat dissipation bearing cage. Existing bearing cages, primarily used to isolate and guide rolling elements to ensure uniform distribution and reduce friction and wear between them, suffer from drawbacks. When the cylindrical bearing rotates at high speed, the low surface roughness of the cage pocket's inner wall makes it difficult for lubricating grease to form a stable oil film within the pocket. During high-speed rotation, centrifugal force causes the grease to be easily ejected from the inner wall of the pocket. Furthermore, once the grease is squeezed out of the pocket, the lack of an effective flow guiding structure makes it difficult for it to flow back to the contact area between the inner wall of the pocket and the rolling elements, affecting the grease lubrication effect and exacerbating the problem of heat accumulation inside the bearing.

[0006] The purpose and effect of this utility model of a high-efficiency heat dissipation bearing cage are achieved by the following specific technical means:

[0007] A high-efficiency heat-dissipating bearing cage includes a cage body, pockets, an upper sealing ring, connecting blocks, a first through hole, a heat dissipation assembly, and a connecting assembly. Multiple sets of pockets are provided and are formed inside the cage body. The upper sealing ring is located at the top of the cage body. Multiple sets of connecting blocks are provided and are fixedly installed at the top of the cage body. Multiple sets of the first through hole are provided and are formed laterally inside the cage body. The heat dissipation assembly is located inside the cage body. The connecting assembly is located on the upper part of the cage body.

[0008] Furthermore, the heat dissipation assembly includes: a retention slot and a partition plate. The retention slot is provided in multiple sets, which are opened inside the main body of the retainer and located on the left and right sides of multiple sets of pockets. The partition plate is provided in multiple sets, which are respectively fixedly installed inside the multiple sets of retention slots.

[0009] Furthermore, the heat dissipation assembly also includes: rolling grooves and rollers. Multiple sets of rolling grooves are provided, and the multiple sets of rolling grooves are opened inside the main body of the retainer. Every two sets of rolling grooves are located on the front and rear sides of a set of retention grooves. Multiple sets of rollers are provided, and the multiple sets of rollers are rotatably connected inside the multiple sets of rolling grooves.

[0010] Furthermore, the heat dissipation component also includes a second through hole, wherein multiple sets of the second through holes are provided, and the multiple sets of the second through holes are vertically opened inside the cage body.

[0011] Furthermore, the heat dissipation assembly also includes: a third through hole and a connecting hole, wherein multiple sets of the third through holes are provided and the multiple sets of the third through holes are vertically opened inside the cage body; and multiple sets of the connecting holes are provided and the multiple sets of the connecting holes are opened inside the upper sealing ring.

[0012] Furthermore, the connecting assembly includes: connecting grooves and connecting bolts, wherein multiple sets of connecting grooves are provided and multiple sets of connecting grooves are formed inside the upper sealing ring; multiple sets of connecting bolts are provided and multiple sets of connecting bolts are threadedly connected inside multiple sets of connecting blocks.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] Firstly, this invention features a heat dissipation component. Through the coordinated design of a partition plate and multiple sets of through holes, it achieves both lubrication and heat dissipation functions. The arc-shaped structure of the inner wall of the retention groove can effectively scrape and trap grease carried by the rolling elements. Combined with the partition plate for layered storage, it ensures that the grease continuously penetrates to the contact interface. The three-dimensional flow channel formed by the first, second, and third through holes allows the grease to absorb heat during circulation and dissipate it quickly through the inner and outer walls of the cage and the upper sealing ring, significantly reducing the bearing operating temperature.

[0015] Secondly, this invention features a connecting assembly that utilizes a combination of rotational pre-clamping and bolt locking. The snap-fit ​​structure between the connecting block and the connecting groove enables rapid positioning, avoiding tedious alignment during assembly; the connecting bolts provide axial tightening force to prevent the upper sealing ring from falling off during high-speed operation. This design balances assembly efficiency and connection stability while supporting rapid disassembly, addressing the inconvenience of disassembly in existing cages connected by rivets. This facilitates the inspection and replacement of the rolling elements, significantly improving maintenance convenience.

[0016] This invention has the advantages of efficient heat dissipation, reduced wear, and convenient maintenance. The setting of rolling groove and needle roller transforms traditional sliding friction into rolling friction, effectively reducing the contact resistance between the rolling elements and the cage and reducing wear. The docking design of the upper sealing ring and the cage body allows the third through hole to be connected with the connecting hole, further optimizing the heat dissipation path and improving the overall performance of the bearing. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the main structure of this utility model.

[0018] Figure 2 This is a schematic diagram of the pocket structure of this utility model.

[0019] Figure 3 This is a schematic diagram of the upper sealing ring structure of this utility model.

[0020] Figure 4 This is a schematic diagram of the needle roller structure of this utility model.

[0021] Figure 5 This is a schematic diagram of the retention groove structure of this utility model.

[0022] In the diagram, the correspondence between component names and drawing numbers is as follows:

[0023] 1. Cage body; 101. Retention groove; 102. Divider plate; 103. Rolling groove; 104. Needle roller; 105. First through hole; 106. Second through hole; 107. Third through hole; 2. Pocket hole; 3. Upper sealing ring; 301. Connecting groove; 302. Connecting hole; 4. Connecting block; 401. Connecting bolt. Detailed Implementation

[0024] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of this utility model.

[0025] Example 1:

[0026] As attached Figure 1 To be continued Figure 5 As shown:

[0027] This utility model provides a high-efficiency heat-dissipating bearing cage, including a cage body 1, pockets 2, an upper sealing ring 3, connecting blocks 4, a first through hole 105, and a heat dissipation assembly. Multiple sets of pockets 2 are provided and are opened inside the cage body 1. The upper sealing ring 3 is located at the top of the cage body 1. Multiple sets of connecting blocks 4 are provided and are fixedly installed at the top of the cage body 1. Multiple sets of first through holes 105 are provided and are opened laterally inside the cage body 1. The heat dissipation assembly is located inside the cage body 1.

[0028] The heat dissipation component includes: a storage slot 101 and a partition plate 102. Multiple sets of storage slots 101 are provided, and the multiple sets of storage slots 101 are opened inside the main body 1 of the retainer. The multiple sets of storage slots 101 are located on the left and right sides of multiple sets of pockets 2. Multiple sets of partition plates 102 are provided, and the multiple sets of partition plates 102 are respectively fixedly installed inside the multiple sets of storage slots 101.

[0029] The heat dissipation component also includes: a rolling groove 103 and a needle roller 104. Multiple sets of rolling grooves 103 are provided, and multiple sets of rolling grooves 103 are opened inside the cage body 1. Every two sets of rolling grooves 103 are located on the front and rear sides of a set of retention grooves 101. Multiple sets of needle rollers 104 are provided, and multiple sets of needle rollers 104 are rotatably connected inside multiple sets of rolling grooves 103.

[0030] The heat dissipation component also includes a second through hole 106, which is provided in multiple sets and is vertically opened inside the cage body 1.

[0031] The heat dissipation component also includes: a third through hole 107 and a connecting hole 302. The third through hole 107 is provided in multiple sets, and the multiple sets of third through holes 107 are vertically opened inside the cage body 1. The connecting hole 302 is provided in multiple sets, and the multiple sets of connecting holes 302 are opened inside the upper sealing ring 3.

[0032] The specific usage and function of this embodiment are as follows:

[0033] During bearing assembly, the needle roller 104 is first embedded into the rolling groove 103, and then the rolling element is installed into the pocket 2. When the rolling element rotates at high speed in the pocket 2, its outer wall contacts the needle roller 104 and drives the needle roller 104 to roll in the rolling groove 103. By replacing traditional sliding friction with rolling friction, the contact resistance between the rolling element and the cage body 1 is significantly reduced, and the smoothness of the rolling element rotation is improved.

[0034] As the rolling element rotates at high speed, the grease adhering to its surface migrates outward due to centrifugal force. Simultaneously, the rolling element actively carries the grease through the retention grooves 101 on both sides of the pocket 2. The inner edge of the retention groove 101 is designed as an arc-shaped structure that slightly protrudes from the inner surface of the pocket 2, but does not contact the rolling element to avoid wear. When the grease carried by the rolling element passes through, some of the grease is "scraped" and trapped by this edge, entering the retention groove 101 for storage. The internal partition plate 102 divides the retention groove 101 into multiple independent spaces, allowing the scraped grease to be distributed in layers in different areas. This avoids accumulation on one side while ensuring that the grease continuously penetrates the contact interface between the rolling element and the pocket 2 through capillary action, forming a long-lasting lubrication protection.

[0035] Regarding heat dissipation and grease circulation, the first through hole 105, which runs horizontally through the cage, connects to the adjacent pocket 2. The second through hole 106, which is vertically arranged, runs through the inner and outer walls of the cage body 1. The third through hole 107, which is vertically distributed, runs through the upper and lower end faces. Together, these three form a "three-dimensional heat dissipation channel". The grease can circulate inside the cage body 1 through the above-mentioned through holes: on the one hand, the flowing grease absorbs the heat generated by the friction between the rolling elements and the pocket 2, and conducts it to the outside of the bearing through the second through hole 106 and diffuses it towards the upper sealing ring 3 through the third through hole 107; on the other hand, when the upper sealing ring 3 is assembled with the cage body 1 through the connecting block 4, the third through hole 107 and the connecting hole 302 of the upper sealing ring 3 are precisely aligned, forming a through heat dissipation path, which further accelerates the dissipation of heat to the bearing end face and achieves a dual improvement in lubrication and heat dissipation performance.

[0036] Example 2:

[0037] Based on Example 1, such as Figures 1 to 5 As shown, it also includes a connecting component, which is disposed on the upper part of the cage body 1.

[0038] The connecting components include: connecting grooves 301 and connecting bolts 401. Multiple sets of connecting grooves 301 are provided, and multiple sets of connecting grooves 301 are opened inside the upper sealing ring 3. Multiple sets of connecting bolts 401 are provided, and multiple sets of connecting bolts 401 are threadedly connected inside multiple sets of connecting blocks 4.

[0039] The specific usage and function of this embodiment are as follows:

[0040] After the rolling element is installed into pocket 2, align the upper sealing ring 3 with the top of the cage body 1, so that the connecting block 4 at the top of the cage body 1 is inserted into the connecting groove 301 of the upper sealing ring 3. By rotating the upper sealing ring 3, the stepped snap-fit ​​structure between the connecting block 4 and the inner wall of the connecting groove 301 achieves initial positioning and engagement, forming a circumferential anti-rotation constraint. Subsequently, screw the connecting bolt 401 radially into the threaded hole of the connecting block 4, so that the end of the bolt precisely engages with the threaded hole at the bottom of the connecting groove 301, completing the axial fastening connection between the upper sealing ring 3 and the cage body 1. By connecting the locking block 4 and the connecting groove 301, preliminary engagement can be achieved without precise alignment, significantly improving assembly efficiency. The connecting bolt 401 provides axial locking force to prevent the upper sealing ring 3 from falling off due to centrifugal force during high-speed operation, ensuring the stability of bearing operation. During disassembly, simply loosen the connecting bolt 401 and rotate the upper sealing ring 3 in the opposite direction to quickly separate the cage body 1 from the upper sealing ring 3, facilitating the inspection, lubrication, or replacement of the rolling elements in the pocket 2, greatly reducing maintenance costs.

[0041] The following points should be noted in this article:

[0042] 1. The accompanying drawings of this embodiment only involve the structures involved in this embodiment; other structures can refer to the general design.

[0043] 2. Where there is no conflict, this embodiment and the features in the embodiment can be combined with each other to obtain new embodiments.

[0044] The above are merely specific implementations of this embodiment, but the protection scope of this embodiment is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this embodiment should be included within the protection scope of this embodiment. Therefore, the protection scope of this embodiment should be determined by the protection scope of the claims.

Claims

1. A high-efficiency heat dissipation bearing cage, characterized in that: The high-efficiency heat dissipation bearing cage includes a cage body (1), pockets (2), an upper sealing ring (3), connecting blocks (4), a first through hole (105), a heat dissipation component, and a connecting component. The pockets (2) are provided in multiple sets, and the multiple sets of pockets (2) are opened inside the cage body (1). The upper sealing ring (3) is provided on the top of the cage body (1). The connecting blocks (4) are provided in multiple sets, and the multiple sets of connecting blocks (4) are fixedly installed on the top of the cage body (1). The first through hole (105) is provided in multiple sets, and the multiple sets of first through holes (105) are opened laterally inside the cage body (1). The heat dissipation component is provided inside the cage body (1). The connecting component is provided on the upper part of the cage body (1).

2. The high-efficiency heat dissipation bearing cage as described in claim 1, characterized in that: The heat dissipation assembly includes: a storage slot (101) and a partition plate (102). The storage slot (101) is provided in multiple sets, and the multiple sets of storage slots (101) are opened inside the main body of the retainer (1). The multiple sets of storage slots (101) are located on the left and right sides of multiple sets of pockets (2). The partition plate (102) is provided in multiple sets, and the multiple sets of partition plates (102) are respectively fixedly installed inside the multiple sets of storage slots (101).

3. The high-efficiency heat dissipation bearing cage as described in claim 2, characterized in that: The heat dissipation assembly also includes: a rolling groove (103) and a roller (104). The rolling groove (103) is provided in multiple sets, and the multiple sets of the rolling groove (103) are opened inside the cage body (1). Every two sets of rolling grooves (103) are located on the front and rear sides of a set of retention grooves (101). The roller (104) is provided in multiple sets, and the multiple sets of roller (104) are rotatably connected inside the multiple sets of rolling grooves (103).

4. The high-efficiency heat dissipation bearing cage as described in claim 2, characterized in that: The heat dissipation assembly also includes a second through hole (106), which is provided in multiple sets, and the multiple sets of the second through holes (106) are vertically opened inside the cage body (1).

5. The high-efficiency heat dissipation bearing cage as described in claim 2, characterized in that: The heat dissipation assembly also includes: a third through hole (107) and a connecting hole (302). The third through hole (107) is provided in multiple sets, and the multiple sets of the third through holes (107) are vertically opened inside the cage body (1). The connecting hole (302) is provided in multiple sets, and the multiple sets of the connecting holes (302) are opened inside the upper sealing ring (3).

6. The high-efficiency heat dissipation bearing cage as described in claim 1, characterized in that: The connecting assembly includes: a connecting groove (301) and a connecting bolt (401). The connecting groove (301) is provided in multiple sets, and the multiple sets of the connecting groove (301) are opened inside the upper sealing ring (3). The connecting bolt (401) is provided in multiple sets, and the multiple sets of the connecting bolt (401) are threadedly connected inside the multiple sets of connecting blocks (4).

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