Mute wear-resistant bearing for magnetic drum wheel of bicycle

Abstract

The utility model provides a mute wear-resistant bearing for a magnetic drum wheel of a bicycle, which relates to the technical field of bearings and comprises a bearing inner ring, a bearing outer ring is mounted on the outer side of the bearing inner ring, a retainer is arranged between the bearing inner ring and the bearing outer ring, and a plurality of cylindrical rollers are uniformly distributed and rotatably arranged in the retainer. The surfaces of the cylindrical rollers are attached to the inner wall of the annular plate, the annular plate can rotate as a whole through sliding fit between the guide sliding blocks and the annular sliding grooves, when the cylindrical rollers rotate, the cylindrical rollers act at the same time, the annular plate can rotate along with the cylindrical rollers, and therefore the service life of the annular plate is prolonged. Lubricating oil in the built-in grooves can also immerse into the surfaces of the cylindrical rollers through the oil outlet holes, noise generated in the rotating process of the cylindrical rollers in the retainer can be effectively reduced, abrasion caused by the retainer to the cylindrical rollers in the rotating process of the cylindrical rollers can be reduced, the retainer and the cylindrical rollers can both be more resistant to abrasion, and the service life of the retainer is prolonged. And the service life can be effectively prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of bearings, in particular to a silent and wear-resistant bearing for a bicycle magnetic drum wheel. Background Art

[0002] The bicycle magnetic drum wheel is a bicycle component that uses the principle of magnetism to transmit power or adjust resistance. The bearing is an important component inside the magnetic drum wheel. For example, the patent application number 202122297283.9 proposes a bicycle axle bearing, which belongs to the field of bearing technology and includes an inner sleeve, steel balls, a retaining frame, a sealing ring, and an outer sleeve. The inner sleeve is inserted into the outer sleeve, and the inner sleeve and the outer sleeve are opposite to each other inside and outside to form the main cavity of the axle bearing in the middle and the sealing ring assembly cavity at both ends. In the sealing ring assembly cavity at both ends, the outer sleeve A sealing ring groove is provided on one side; in the main cavity of the central shaft bearing, an outer sleeve groove is provided in the middle of the inner side of the outer sleeve, and an inner sleeve groove is provided in the middle of the outer side of the inner sleeve. The outer sleeve groove and the inner sleeve groove are opposite to each other inside and outside to form a circular track for the rolling of the steel ball; the sealing ring is provided in the sealing ring assembly cavity at both ends of the central shaft bearing, the sealing ring includes a head and a tail, and the sealing ring head is embedded in the sealing ring groove on one side of the outer sleeve; the outer sleeve is a bearing steel bearing outer sleeve; a flange is provided on the outer end face of the outer sleeve, and the outer end face of the flange is an inclined surface; a jacket extension sleeve is provided on the inner end face of the outer sleeve.

[0003] During use, the rotation of the internal balls of existing bearings will collide with the cage, making a loud noise and causing great wear, which shortens the service life of the bearings. Therefore, we have made improvements to this and proposed a silent and wear-resistant bearing for bicycle magnetic drum wheels. Utility Model Content

[0004] The main purpose of the utility model is to provide a silent and wear-resistant bearing for a bicycle magnetic drum wheel, which can effectively solve the problem that the rotation of the internal balls of the bearing during use will collide with the retaining frame, make a loud noise, and cause greater wear, thereby shortening the service life of the bearing.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0006] A silent and wear-resistant bearing for a bicycle magnetic drum wheel includes a bearing inner ring, a bearing outer ring is installed on the outside of the bearing inner ring, a retaining frame is arranged between the bearing inner ring and the bearing outer ring, a plurality of cylindrical rollers are evenly distributed and rotated inside the retaining frame, and a lubrication mechanism is arranged between the upper side of the retaining frame and the bearing outer ring.

[0007] Preferably, sealing rings are installed on both sides of the retaining frame and between the bearing inner ring and the bearing outer ring.

[0008] Preferably, the lubrication mechanism comprises an annular plate, which is movably arranged on the outside of the retaining frame, and the inner surface of the annular plate is in contact with the surface of the cylindrical roller.

[0009] Preferably, guide sliders are installed on both end surfaces of the annular plate, and annular sliding grooves are provided on both sides of the interior of the retaining frame.

[0010] Preferably, one end of each guide slider is slidably arranged inside the annular sliding groove at the corresponding position.

[0011] Preferably, a built-in groove is provided inside the annular plate, and a plurality of oil outlet holes are evenly distributed on the inner wall of the built-in groove on the side close to the cylindrical roller.

[0012] Preferably, an oil filling hole is opened on one side of the outer surface of the annular plate, and a sealing cover is installed inside the oil filling hole.

[0013] Preferably, a plurality of guide grooves are evenly distributed on the inner wall of the bearing inner ring on the side close to the cylindrical roller.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] The surface of the cylindrical roller fits with the inner wall of the annular plate, and the annular plate can rotate as a whole through the sliding cooperation between the guide slider and the annular groove. When the cylindrical roller rotates, the simultaneous action of multiple cylindrical rollers can make the annular plate rotate accordingly, and the lubricating oil inside the built-in groove will also penetrate into the surface of the cylindrical roller through the oil outlet hole, which can not only effectively reduce the noise generated by the cylindrical roller during the rotation of the cage, but also reduce the wear caused by the cage to the cylindrical roller during the rotation of the cylindrical roller, making the cage and cylindrical roller more wear-resistant and effectively improving the service life. During the use of the bearing, the lubricating oil inside the cage and cylindrical roller will also flow to the inside of the bearing inner ring, and can be guided to various positions inside the bearing inner ring through the guide groove, so that the lubricating oil is more evenly distributed, thereby better eliminating noise. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0017] Figure 2 It is a top view of the utility model;

[0018] Figure 3 For the utility model Figure 2 Schematic diagram of the three-dimensional structure of the cross section at AA in the middle;

[0019] Figure 4 For the utility model Figure 2Schematic diagram of the cross-section three-dimensional structure at the middle BB;

[0020] Figure 5 For the utility model Figure 3 Enlarged view of point C in the middle;

[0021] Figure 6 For the utility model Figure 4 Enlarged view of point D in the middle.

[0022] In the figure: 1. Bearing inner ring; 101. Guide groove; 2. Bearing outer ring; 3. Sealing ring; 4. Cage; 401. Annular groove; 5. Cylindrical roller; 6. Lubrication mechanism; 601. Annular plate; 6011. Guide slider; 602. Built-in groove; 603. Oil outlet; 604. Oil filling hole; 605. Sealing cover. DETAILED DESCRIPTION

[0023] The following will be combined with the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0024] like Figure 1 、 Figure 2 、 Figure 3 As shown, a silent and wear-resistant bearing for a bicycle magnetic drum wheel includes a bearing inner ring 1, a bearing outer ring 2 is installed on the outside of the bearing inner ring 1, a retaining frame 4 is arranged between the bearing inner ring 1 and the bearing outer ring 2, a plurality of cylindrical rollers 5 are evenly distributed and rotated inside the retaining frame 4, a lubrication mechanism 6 is provided between the upper side of the retaining frame 4 and the bearing outer ring 2, and sealing rings 3 are installed on both sides of the retaining frame 4 and between the bearing inner ring 1 and the bearing outer ring 2.

[0025] like Figures 3 to 6 As shown, the lubrication mechanism 6 includes an annular plate 601, which is movably arranged on the outside of the retaining frame 4, and the inner surface of the annular plate 601 is in contact with the surface of the cylindrical roller 5. Guide sliders 6011 are installed on the two end surfaces of the annular plate 601, and annular grooves 401 are provided on both sides of the interior of the retaining frame 4. One end of each guide slider 6011 is slidably arranged inside the annular groove 401 at the corresponding position. A built-in groove 602 is provided inside the annular plate 601, and a number of oil outlet holes 603 are evenly distributed on the inner wall of the built-in groove 602 on the side close to the cylindrical roller 5. An oil filling hole 604 is provided on one side of the outer surface of the annular plate 601, and a sealing cover 605 is installed inside the oil filling hole 604. A number of guide grooves 101 are evenly distributed on the inner wall of the bearing inner ring 1 on the side close to the cylindrical roller 5.

[0026] During the operation of the bearing, the relative rotation between the cylindrical roller 5 and the annular plate 601 allows the lubricating oil inside the built-in groove 602 to flow more evenly to the surface of the retaining frame 4 and each cylindrical roller 5, so that the cylindrical roller 5 can generate less noise during the rotation inside the retaining frame 4, and can also effectively reduce wear and improve the service life of the bearing.

[0027] The working principle of this silent and wear-resistant bearing for bicycle magnetic drum wheel:

[0028] Before assembling the bearing, lubricating oil is added to the interior of the built-in groove 602 through the oil filling hole 604, and then the outer surface of the annular plate 601 is sealed with a sealing cover 605. During the operation of the bearing, the surface of the cylindrical roller 5 fits the inner wall of the annular plate 601, and the sliding fit between the guide slider 6011 and the annular groove 401 allows the annular plate 601 to rotate as a whole. When the cylindrical roller 5 rotates, the simultaneous action of multiple cylindrical rollers 5 can make the annular plate 601 rotate accordingly, and the lubricating oil in the built-in groove 602 will also flow out through the oil outlet hole 60 3 is immersed into the surface of the cylindrical roller 5, which can not only effectively reduce the noise generated by the cylindrical roller 5 during the rotation of the cage 4, but also reduce the wear caused by the cage 4 to the cylindrical roller 5 during the rotation, making the cage 4 and the cylindrical roller 5 more wear-resistant and effectively improving the service life. During the use of the bearing, the lubricating oil in the cage 4 and the cylindrical roller 5 will also flow into the interior of the bearing inner ring 1 and be guided to various positions inside the bearing inner ring 1 through the guide groove 101, making the lubricating oil more evenly distributed, thereby better eliminating noise.

[0029] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the implementation methods of the present invention. For ordinary technicians in the relevant field, other different forms of changes or modifications can be made based on the above description. It is impossible to list all implementation methods here. All obvious changes or modifications derived from the technical solution of the present invention are still within the scope of protection of the present invention.

Claims

1. A silent and wear-resistant bearing for a bicycle magnetic drum wheel, comprising a bearing inner ring (1), characterized in that: The outer side of the bearing inner ring (1) is provided with a bearing outer ring (2), a retainer (4) is provided between the bearing inner ring (1) and the bearing outer ring (2), a plurality of cylindrical rollers (5) are evenly distributed and rotatably provided inside the retainer (4), a lubricating mechanism (6) is provided between the upper side of the retainer (4) and the bearing outer ring (2), the lubricating mechanism (6) comprises an annular plate (601), the annular plate (601) is movably provided on the outer side of the retainer (4), the inner surface of the annular plate (601) and the cylindrical rollers (5) are provided. The surface of the roller (5) is fitted, and guide sliders (6011) are installed on the surfaces of both ends of the annular plate (601), and annular grooves (401) are provided on both sides of the interior of the retaining frame (4), and one end of each guide slider (6011) is slidably arranged inside the annular groove (401) at a corresponding position, and a built-in groove (602) is provided inside the annular plate (601), and a plurality of oil outlet holes (603) are evenly distributed on the inner wall of the built-in groove (602) on the side close to the cylindrical roller (5).

2. The silent and wear-resistant bearing for a bicycle magnetic drum wheel according to claim 1, characterized in that: Sealing rings (3) are installed on both sides of the retaining frame (4) and between the bearing inner ring (1) and the bearing outer ring (2).

3. The silent and wear-resistant bearing for a bicycle magnetic drum wheel according to claim 1, characterized in that: An oil filling hole (604) is provided on one side of the outer surface of the annular plate (601), and a sealing cover (605) is installed inside the oil filling hole (604).

4. The silent and wear-resistant bearing for a bicycle magnetic drum wheel according to claim 1, characterized in that: A plurality of guide grooves (101) are evenly distributed on the inner wall of the bearing inner ring (1) on the side close to the cylindrical roller (5).

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