A sealing assembly for a motorcycle bearing

Abstract

The utility model relates to the technical field of sealing assembly, specifically relates to a sealing assembly of motorcycle bearing, including bearing main body, outer ring and inner ring, the inner wall of outer ring all is established with first movable slot, the inner wall inside of inner ring all is established with second movable slot, through the clearance of sealing sheet embedding outer ring fixed sheet and inner ring fixed sheet, utilize the self form to fill the gap space, further block the channel of impurity penetration, and the close contact of inner ring fixed sheet and sealing sheet simultaneously, can prevent tiny particle and moisture through the gap and enter the bearing inside, compared with the traditional bearing situation that motorcycle adopts, avoid the impurity such as dust, silt, water stain in external environment and enter the bearing inside from the clearance between outer ring and inner ring, prevent the lubricating grease in bearing inside from being polluted and destroy the lubricating environment between the ball and the inner and outer ring raceway, the ball loses effective lubrication, reduces the abrasive wear of ball and raceway surface, aggravates the overall wear degree of bearing.

Description

Technical Field

[0001] This utility model relates to the field of sealing component technology, specifically to a sealing component for a motorcycle bearing. Background Technology

[0002] Motorcycle bearings are used in critical rotating parts such as engines, transmissions, and wheels. They need to achieve smooth rotation with low friction and low vibration, and must also ensure durability to reduce fuel consumption and ensure safety. For example, bearings used in motorcycle engines and transmissions must rotate at high temperatures and speeds in environments with foreign objects and withstand significant impact loads, thus requiring resistance to foreign objects and high rigidity. Wheel bearings, on the other hand, must be durable against water and mud. Motorcycle bearings can be broadly classified into rolling bearings and sliding bearings. Rolling bearings include deep groove ball bearings and cylindrical roller bearings, primarily bearing radial loads; sliding bearings include bushings, primarily bearing axial loads. Based on manufacturing materials, they can be classified as steel bearings, copper bearings, ceramic bearings, etc.

[0003] In existing technology, the core structure of traditional bearings used in motorcycles consists of balls assembled between the outer and inner rings. When these bearings are in operation, the outer ring is typically fixedly connected to the external components of the motorcycle, while the inner ring rotates relative to the outer ring via the balls, thus fulfilling the functional requirements of the motorcycle's transmission or rotating components. However, there are some drawbacks: due to the non-contact relative motion design between the outer and inner rings, there are assembly and movement clearances. During long-term operation, dust, mud, water stains, and other impurities from the external environment can enter the bearing through the gap between the outer and inner rings, contaminating the lubricating grease inside the bearing. This disrupts the lubrication environment between the balls and the raceways of the inner and outer rings, causing the balls to lose effective lubrication and further resulting in abrasive wear on the surfaces of the balls and raceways, thus exacerbating the overall wear of the bearing. Utility Model Content

[0004] In view of the above-mentioned shortcomings of the existing technology, the present invention provides a sealing assembly for motorcycle bearings, which can effectively solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] This utility model provides a sealing assembly for a motorcycle bearing, including a bearing body, an outer ring, and an inner ring. The inner wall of the outer ring is provided with a first movable groove, and the inner wall of the inner ring is provided with a second movable groove. Multiple balls are movably nested inside the second movable groove, and the outer sides of the balls are movably nested inside the first movable groove of the outer ring. Sealing assemblies are provided on both sides of the outer ring and the inner ring, and the sealing assemblies are used to seal and prevent dust on both sides of the outer ring and the inner ring of the bearing body.

[0007] The sealing assembly includes an outer ring fixing plate, one side of which is fixedly installed on one side of the outer ring, and inner ring fixing plates are fixedly installed on both sides of the inner ring.

[0008] Furthermore, a fixing groove is provided inside one side of the outer ring fixing piece, and a sealing piece is fitted between the outer ring fixing piece and the inner ring fixing piece, with one side of the sealing piece located at the edge of the gap between the inner ring fixing piece and the outer ring fixing piece.

[0009] Furthermore, one side of the inner ring fixing piece contacts one side of the sealing piece, and a groove is formed inside the outer wall of the sealing piece, with a pin piece fixedly sleeved inside the groove.

[0010] Furthermore, one end of the pin is located inside the groove of the sealing plate, and the inner ring fixing plate and the outer ring fixing plate can rotate inside the outer wall and one side of the sealing plate. One side of the pin is fixedly sleeved inside the fixing groove of the outer ring fixing plate.

[0011] Furthermore, a piston ring groove is provided on the inner side of the sealing sheet, and a piston sleeve is fixedly fitted inside the piston ring groove.

[0012] Furthermore, a first protective shell and a second protective shell are fixedly sleeved on both sides of the outer wall of the outer ring, and the interior of the first protective shell and the second protective shell contacts one side of the sealing sheet and the outer ring fixing sheet.

[0013] The technical solution provided by this utility model has the following advantages compared with the known prior art:

[0014] 1. This utility model uses the outer ring fixing plate and inner ring fixing plate of the sealing component to initially seal the two sides of the first and second movable grooves, thereby initially blocking external impurities or dust. The sealing plate is embedded in the gap between the outer ring fixing plate and the inner ring fixing plate, and fills the gap space with its own shape, further blocking the channels for impurities to penetrate. At the same time, the close contact between the inner ring fixing plate and the sealing plate can prevent small particles and moisture from entering the bearing through the gap. Compared with the traditional bearings used in motorcycles, this prevents impurities such as dust, mud, and water stains from the external environment from entering the bearing through the gap between the outer and inner rings, preventing contamination of the lubricating grease inside the bearing and damage to the lubrication environment between the balls and the inner and outer ring raceways. This would cause the balls to lose effective lubrication, reduce abrasive wear on the surface of the balls and raceways, and aggravate the overall wear of the bearing.

[0015] 2. At the same time, the first and second protective shells on both sides of the outer ring wall are in close contact with the sealing plate, outer ring fixing plate and inner ring fixing plate on one side, preventing external dust, impurities and moisture from entering the internal sealing structure. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

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

[0018] Figure 2 This is a schematic diagram of the first and second protective shells of this utility model;

[0019] Figure 3 This is a schematic diagram of the sealing sheet, piston sleeve, and pin of this utility model;

[0020] Figure 4 This is a first-person perspective disassembled structural diagram of the bearing body and sealing assembly of this utility model;

[0021] Figure 5 This is a second-view diagram showing the disassembled structure of the bearing body and sealing assembly of this utility model.

[0022] The labels in the diagram represent: 1. Bearing body; 2. Sealing assembly; 21. First protective shell; 22. Second protective shell; 24. Outer ring fixing plate; 26. Sealing plate; 27. Fixing groove; 28. Slot; 29. ​​Pin plate; 210. Piston sleeve; 211. Piston ring groove; 212. Inner ring fixing plate; 3. Outer ring; 31. First movable groove; 4. Inner ring; 41. Second movable groove; 5. Ball bearing. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0024] The present invention will be further described below with reference to the embodiments.

[0025] Example 1:

[0026] Reference Figures 1 to 5This first embodiment of the present invention discloses a sealing assembly for a motorcycle bearing, comprising a bearing body 1, an outer ring 3, and an inner ring 4. The inner wall of the outer ring 3 is provided with a first movable groove 31, and the inner wall of the inner ring 4 is provided with a second movable groove 41. Multiple balls 5 are movably nested inside the second movable groove 41, with the outer sides of the balls 5 movably nested within the first movable groove 31 of the outer ring 3. The bearing body 1 is composed of the outer ring 3, the inner ring 4, and the balls 5. The second movable groove 41 on the outer wall of the inner ring 4 provides space for the balls 5 to be movably nested, and the outer sides of the balls 5 are simultaneously embedded in the first movable groove 31 on the inner wall of the outer ring 3. When the motorcycle is running, the inner ring 4 rotates synchronously with the wheel axle, causing the balls 5 to roll within the annular track formed by the first movable groove 31 and the second movable groove 41. At this time, the outer ring 3 remains relatively fixed. Sealing assemblies 2 are provided on both sides of the outer ring 3 and the inner ring 4, and the sealing assemblies 2 are used to seal and prevent dust from entering the outer and inner rings of the bearing body 1.

[0027] The sealing assembly 2 includes an outer ring fixing piece 24, one side of which is fixedly installed on one side of the outer ring 3. The outer ring fixing piece 24 is installed on both sides of the outer ring 3. Inner ring fixing pieces 212 are fixedly installed on both sides of the inner ring 4. Through the outer ring fixing piece 24 and the inner ring fixing piece 212, the edges of the first movable groove 31 and the second movable groove 41 of the outer ring 3 and the inner ring 4 are initially sealed and blocked. Secondly, an installation frame is built for the subsequent sealing structure. A fixing groove 27 is opened inside one side of the outer ring fixing piece 24. The outer ring fixing piece 24 and the inner ring fixing piece 212 are fixedly installed on both sides of the inner ring 4. A sealing plate 26 is fitted between the ring fixing pieces 212. One side of the sealing plate 26 is located at the edge of the gap between the inner ring fixing piece 212 and the outer ring fixing piece 24, with one edge located in the gap between the two. One side of the inner ring fixing piece 212 is in contact with the sealing plate 26. The sealing plate 26 fills the gap between the outer ring fixing piece 24 and the inner ring fixing piece 212 by its own shape. One side of the inner ring fixing piece 212 is in contact with one side of the sealing plate 26. A groove 28 is opened inside the outer wall of the sealing plate 26. A pin 29 is fixedly fitted inside the groove 28.

[0028] One end of the pin 29 is located inside the slot 28 of the sealing plate 26. The inner ring fixing plate 212 and the outer ring fixing plate 24 can rotate on the outer wall and one side of the sealing plate 26. One side of the pin 29 is fixedly sleeved inside the fixing groove 27 of the outer ring fixing plate 24. The pin 29 is tightened into the fixing groove 27 of the outer ring fixing plate 24 by the fixing thread. Then, the pin 29 is engaged inside the slot 28 of the sealing plate 26, thereby fixing the sealing plate 26. A piston ring groove 211 is opened on the inner side of the sealing plate 26. A piston sleeve 210 is fixedly sleeved inside the piston ring groove 211.

[0029] Reference Figures 2 to 4The outer wall of the outer ring 3 is fixedly fitted with a first protective shell 21 and a second protective shell 22 on both sides. The interior of the first protective shell 21 and the second protective shell 22 contacts one side of the sealing sheet 26 and the outer ring fixing piece 24. Through the first protective shell 21 and the second protective shell 22 on both sides of the outer wall of the outer ring 3, the interior side of the first protective shell 21 and the second protective shell 22 is in close contact with the sealing sheet 26 and the outer ring fixing piece 24, preventing external dust, impurities, moisture and other substances from entering the internal sealing structure.

[0030] The remaining structure is the same as that in Example 1.

[0031] The workflow of this utility model is as follows:

[0032] First, the bearing body 1 is composed of an outer ring 3, an inner ring 4, and balls 5. The second movable groove 41 on the outer wall of the inner ring 4 provides a space for the balls 5 to be nested. The outer side of the balls 5 is also embedded in the first movable groove 31 on the inner wall of the outer ring 3. When the motorcycle is running, the inner ring 4 rotates synchronously with the wheel axle, causing the balls 5 to roll in the annular track formed by the first movable groove 31 and the second movable groove 41. At this time, the outer ring 3 remains relatively fixed.

[0033] Secondly, the outer ring fixing piece 24 and the inner ring fixing piece 212 are used to initially seal and block the two sides of the first movable groove 31 and the second movable groove 41 of the outer ring 3 and the inner ring 4, thus building an installation frame for the subsequent sealing structure. One side of the sealing piece 26 is located in the gap between the inner ring fixing piece 212 and the outer ring fixing piece 24, and one side of the edge is located in the gap between the two. One side of the inner ring fixing piece 212 is in contact with the sealing piece 26. The sealing piece 26 fills the gap between the outer ring fixing piece 24 and the inner ring fixing piece 212 by its own shape. The pin 29 is fixed in the slot 28 of the sealing piece 26, and one side is fitted into the fixing groove 27 of the outer ring fixing piece 24, which firmly positions the sealing piece 26 and the outer ring fixing piece 24 to prevent the sealing piece 26 from shifting and affecting the sealing effect. The pin 29 is also tightly fitted with the groove.

[0034] Finally, the first protective shell 21 and the second protective shell 22 on both sides of the outer wall of the outer ring 3 are in close contact with the sealing plate 26, the outer ring fixing plate 24 and the inner ring fixing plate 212 on their inner side, preventing external dust, impurities, moisture and other substances from entering the internal sealing structure.

[0035] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions will not cause the essence of the corresponding technical solutions to deviate from the protection scope of the technical solutions of the embodiments of this utility model.

Claims

1. A sealing assembly for a motorcycle bearing, characterized in that: The bearing includes a bearing body (1), an outer ring (3) and an inner ring (4). The inner wall of the outer ring (3) is provided with a first movable groove (31), and the inner wall of the inner ring (4) is provided with a second movable groove (41). Multiple balls (5) are movably nested inside the second movable groove (41). The outer side of the balls (5) is movably nested inside the first movable groove (31) of the outer ring (3). A sealing assembly (2) is provided on both sides of the outer ring (3) and the inner ring (4). The sealing assembly (2) is used to seal and prevent dust on both sides of the outer ring and the inner ring of the bearing body (1). The sealing assembly (2) includes an outer ring fixing piece (24), one side of which is fixedly installed on one side of the outer ring (3), and inner ring fixing pieces (212) are fixedly installed on both sides of the inner ring (4).

2. The sealing assembly for a motorcycle bearing according to claim 1, characterized in that, A fixing groove (27) is provided inside one side of the outer ring fixing piece (24), and a sealing piece (26) is sleeved between the outer ring fixing piece (24) and the inner ring fixing piece (212). One side of the sealing piece (26) is located at the edge of the gap between the inner ring fixing piece (212) and the outer ring fixing piece (24).

3. A sealing assembly for a motorcycle bearing according to claim 2, characterized in that, One side of the inner ring fixing piece (212) contacts one side of the sealing piece (26), and a slot (28) is provided inside the outer wall of the sealing piece (26), and a pin piece (29) is fixedly sleeved inside the slot (28).

4. A sealing assembly for a motorcycle bearing according to claim 3, characterized in that, One end of the pin (29) is located inside the slot (28) of the sealing plate (26). The inner ring fixing plate (212) and the outer ring fixing plate (24) can rotate on the outer wall and one side of the sealing plate (26). One side of the pin (29) is fixedly sleeved inside the fixing groove (27) of the outer ring fixing plate (24).

5. A sealing assembly for a motorcycle bearing according to claim 4, characterized in that, The inner side of the sealing plate (26) is provided with a piston ring groove (211), and a piston sleeve (210) is fixedly fitted inside the piston ring groove (211).

6. A sealing assembly for a motorcycle bearing according to claim 1, characterized in that, The outer wall of the outer ring (3) is fixedly fitted with a first protective shell (21) and a second protective shell (22) on both sides. The interior of the first protective shell (21) and the second protective shell (22) contacts one side of the sealing plate (26) and the outer ring fixing plate (24).

Images