Bearing structure with mute coil

Abstract

The utility model relates to the field of bearings, in particular to a bearing structure with a mute coil, and aims to solve the technical problems that balls or pin rollers are abraded and noise is generated due to the fact that dust falls between an inner ring and an outer ring of a bearing. According to the technical scheme, the bearing structure with the mute coil comprises a bearing inner ring, a bearing outer ring, a rolling module, a mute coil assembly and an outer mute assembly; according to the silent bearing, the silent coil assembly which is arranged on the bearing inner ring and is of a double-layer structure is used for isolating and adsorbing noise generated on the rolling module, preventing the noise from diffusing outwards and realizing the silent operation function of the bearing, and a layer of outer silent assembly is additionally arranged outside the bearing outer ring, so that the noise is reduced, and the service life of the bearing is prolonged. The possibility that noise on the rolling module transmits sound through the bearing outer ring structure to diffuse outwards is reduced, the mute capacity of the bearing is further enhanced, and the problems that balls or pin rollers are abraded and noise is generated due to the fact that dust falls between the inner ring and the outer ring of the bearing are solved.

Description

Technical Field

[0001] The utility model relates to the field of bearings, in particular to a bearing structure with a silent ring. Background Art

[0002] Mechanical rotating body connections usually use bearings to support and connect two mechanical bodies. Bearings can reduce the friction between the mechanical bodies so that the mechanical bodies rotate more smoothly. Current bearings are composed of bearing rings and multiple balls or rollers, so they can be divided into ball bearings or roller bearings. The bearing rings are divided into inner rings and outer rings. When the bearing rotates, the balls roll between the inner ring and the outer ring.

[0003] However, the current bearing rings use sealing rings to seal the gaps between the bearing rings. The sealing rings will be worn during long-term rotation of the bearings, resulting in gaps between the sealing rings and the bearing rings. This will cause foreign matter from the outside to enter the bearing rings. Foreign matter falling on the roller surface will easily increase the wear on the balls or rollers, causing noise during bearing rotation, which greatly affects the user experience when used in mechanical equipment.

[0004] Therefore, in order to address the problem of noise caused by wear of the balls or rollers due to dust falling between the inner and outer rings of the above-mentioned bearings, a bearing with a silent ring structure can be designed. The inner seal of the bearing made of silent material can reduce the entry of dust and absorb the rotational noise generated by wear of the balls or rollers to a great extent. Utility Model Content

[0005] In order to overcome the problem of noise caused by wear of balls or rollers due to dust falling between the inner and outer rings of the bearing.

[0006] The technical scheme of the utility model is: a bearing structure with a silent ring, comprising a bearing inner ring, a bearing outer ring, a rolling module, a silent ring assembly, and an external silent assembly; the bearing inner ring is sleeved on the inner side of the bearing outer ring and a rolling module is arranged between the two, a silent ring assembly with sound-absorbing material attached to the surface is fixedly connected to the outer wall of the bearing inner ring, and the silent ring assembly is arranged in two layers in parallel and symmetrically from top to bottom, the rolling module is located between the silent ring assemblies, and an external silent assembly with a circle of sound-insulating material attached to the outer wall of the bearing outer ring is embedded; the silent ring assembly comprises a ring beam, an embedding groove, and a through hole; the ring beam is a circular ring with a hollow structure and is integrally connected to the outer wall of the bearing inner ring, and an embedding groove with a depth of 1 mm is arranged on the upper and lower sides of the ring beam, and a number of through holes equidistantly distributed are opened in the embedding groove and the through holes are connected to the cavity of the ring beam; the external silent assembly comprises a rubber ring and a sound insulation ring; the sound insulation ring is a composite material of asbestos and artificial leather, and the sound insulation ring is bonded to the inner wall of the rubber ring by hot melt adhesive, and the cross-section of the sound insulation ring is a prism-shaped and embedded in the outer wall of the bearing outer ring.

[0007] Preferably, the inner ring of the bearing and the outer ring of the bearing are sleeved and rely on the smooth relative rotation of the rolling module between the two to form a bearing structure. The rolling module can be a ball or a roller. The silent ring component is arranged on the upper and lower sides and the rolling module is sandwiched in the middle. Cooperating with the outer silent ring component on the outer wall of the silent ring component, a three-sided sound absorption and noise reduction structure is formed for the rolling module. A part of the rolling noise sound waves generated by wear of the rolling module will enter the hollow ring beam through the through hole. Due to the characteristic that the speed of sound waves propagating in the air medium is slower than that in solid materials, this part of the sound waves is more likely to be absorbed by the attracting material, thereby enhancing the attraction effect. The sound waves are strongest at the position where the sound insulation ring is facing the rolling module. The sound waves are isolated in the outer ring of the bearing through the thicker sound insulation material itself to prevent further outward diffusion. The setting of the rubber ring not only protects the sound insulation material, but also has a certain elastic buffering effect on external impact force.

[0008] Preferably, the silent ring assembly further includes a sound-absorbing gasket; the sound-absorbing gasket is embedded and installed in the embedding groove, the sound-absorbing gasket is made of slag wool material, and the sound-absorbing gasket has a metal wire mesh skeleton for shaping. The sound-absorbing gasket fixes its shape through the metal wire mesh skeleton to avoid wrinkling and deformation due to friction, resulting in larger structural gaps that cannot filter out sound waves. The slag wool material has a loose and porous structure inside, and the sound waves of the rolling module penetrate into the pores of the material, are subjected to friction and viscous resistance from air molecules, and cause small fibers to vibrate mechanically, thereby converting sound energy into heat energy to achieve a sound-absorbing effect.

[0009] Preferably, the silent ring assembly also includes auxiliary rolling balls; the outer edge of the ring beam has a number of equidistantly arranged recesses and movable auxiliary rolling balls are installed in the recesses. When the ring beam rotates with the inner ring of the bearing, in addition to the rotation of the rolling module itself to reduce the influence of friction, the rolling of the auxiliary rolling balls also further reduces the friction between the ring beam and the surrounding structure.

[0010] Preferably, the outer ring of the bearing includes an outer ring and a rolling groove; the outer ring is sleeved on the outside of the inner ring of the bearing and a rolling groove adapted to the rolling module is arranged in the middle of the inner wall, and the rolling module rolls in the rolling groove. Depending on the type of rolling module, whether it is a ball or roller, the rolling groove is also made into a corresponding shape.

[0011] Preferably, the outer ring of the bearing also includes a docking groove and a buckle groove; the inner wall of the outer ring is provided with two layers of docking grooves which are parallel and symmetrical up and down, the silent ring assembly is in the docking groove, and the outer wall of the outer ring is provided with a circle of buckle grooves with a prism-shaped cross-section, the outer silent ring assembly is embedded and installed in the buckle groove, and the silent ring assembly is stuck in the docking groove. While it itself has a sound-absorbing effect, it cooperates with the docking groove to form a longitudinal staggered structure, thereby reducing the possibility of dust falling into the rolling module through the gap between the inner ring of the bearing and the outer ring of the bearing.

[0012] Beneficial effects of the utility model:

[0013] 1. The double-layer silent ring component installed on the inner ring of the bearing can isolate and absorb the noise generated by the rolling module, prevent the noise from spreading outward, and realize the silent operation of the bearing. In addition, an external silent component is installed on the outside of the outer ring of the bearing to reduce the possibility of the noise on the rolling module spreading outward through the outer ring structure of the bearing, further enhancing the silent ability of the bearing;

[0014] 2. The silent ring assembly rotates with the inner ring of the bearing, and uses its own auxiliary ball to roll in the docking groove to reduce the sliding friction between the structures and ensure the smooth rotation of the inner ring of the bearing relative to the outer ring of the bearing;

[0015] 3. The cross-sectional structure of the sound insulation ring is a prism-shaped one. The material in the middle part facing the rolling module is relatively thick, and the sound absorption effect is the best. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 What is shown is a three-dimensional structural schematic diagram of a bearing structure with a silent ring of the utility model;

[0017] Figure 2 The present invention is a cross-sectional three-dimensional structural schematic diagram of a bearing structure with a silent ring;

[0018] Figure 3 The first structural schematic diagram of the bearing inner ring and the silent ring assembly of the bearing structure with silent ring of the utility model is shown;

[0019] Figure 4 The second three-dimensional structure schematic diagram of the bearing inner ring and the silent ring assembly of the bearing structure with silent ring of the utility model is shown;

[0020] Figure 5 What is shown is a schematic diagram of the three-dimensional structure of the outer ring of the bearing structure with a silent ring and the outer silent component of the utility model.

[0021] Explanation of the reference numerals: 1. bearing inner ring; 2. silent ring assembly; 3. bearing outer ring; 4. rolling module; 5. external silent assembly; 201. ring beam; 202. embedded groove; 203. through hole; 204. sound-absorbing gasket; 205. auxiliary rolling ball; 301. outer ring; 302. rolling groove; 303. docking groove; 304. buckle groove; 501. rubber ring; 502. sound insulation ring. DETAILED DESCRIPTION

[0022] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0023] See also Figure 1-4The utility model provides an embodiment: a bearing structure with a silent ring, comprising a bearing inner ring 1, a bearing outer ring 3, a rolling module 4, a silent ring assembly 2, and an outer silent assembly 5; the bearing inner ring 1 is sleeved on the inner side of the bearing outer ring 3 and a rolling module 4 is arranged between the two, a silent ring assembly 2 with sound-absorbing material attached to the surface is fixedly connected to the outer wall of the bearing inner ring 1, and the silent ring assembly 2 is symmetrically arranged in two layers up and down, the rolling module 4 is between the silent ring assemblies 2, a circle of outer silent assembly 5 with sound insulation material attached is embedded on the outer wall of the bearing outer ring 3, and the silent ring assembly 2 includes a ring beam 201, an embedding groove 202, and a through hole 203; the ring beam 201 is a hollow ring and is integrally connected to the outer wall of the bearing inner ring 1, and the upper and lower sides of the ring beam 201 are both provided with a depth of 1m m's embedding groove 202, a plurality of equidistantly distributed through holes 203 are provided in the embedding groove 202 and the through holes 203 are connected to the cavity of the ring beam 201, the external sound-proofing component 5 includes a rubber ring 501 and a sound-proofing ring 502; the sound-proofing ring 502 is a composite material of asbestos and artificial leather, the sound-proofing ring 502 is bonded to the inner wall of the rubber ring 501 by hot-melt adhesive, the cross-section of the sound-proofing ring 502 is a prism-shaped and embedded in the outer wall of the bearing outer ring 3, the bearing inner ring 1 and the bearing outer ring 3 are sleeved and rely on the smooth relative rotation of the rolling module 4 therebetween to form a bearing structure, the rolling module 4 can be a ball or a roller, the silent ring component 2 is arranged on the upper and lower sides and the rolling module 4 is sandwiched in the middle, and cooperates with the external sound-proofing component 5 on the outer wall of the silent ring component 2 to form a sound-absorbing and noise-reducing structure surrounded on three sides for the rolling module 4.

[0024] See also Figure 3-4 In this embodiment, the silent ring assembly 2 further includes a sound-absorbing gasket 204; the sound-absorbing gasket 204 is embedded in the embedded groove 202, the sound-absorbing gasket 204 is made of slag wool material, and the sound-absorbing gasket 204 has a metal wire mesh skeleton for shaping. The silent ring assembly 2 also includes an auxiliary rolling ball 205; the outer edge of the ring beam 201 has a plurality of equidistantly arranged notches and movable auxiliary rolling balls 205 are installed in the notches. A part of the rolling noise sound waves generated by the rolling module 4 due to wear will enter the hollow ring beam 201 through the through hole 203. Due to the characteristic that the propagation speed of sound waves in the air medium is slower than that in the solid material, the probability that this part of the sound waves can be absorbed by the attracting material is The sound-absorbing gasket 204 is fixed in shape by a metal wire mesh skeleton to avoid wrinkling and deformation due to friction, resulting in larger structural gaps that cannot filter out sound waves. The slag wool material has a loose porous structure inside. The sound waves of the rolling module 4 penetrate into the pores of the material and are subjected to friction and viscous resistance from air molecules, as well as mechanical vibration of fine fibers, thereby converting sound energy into heat energy to achieve a sound-absorbing effect. During the rotation of the ring beam 201 with the inner ring 1 of the bearing, in addition to the rotation of the rolling module 4 itself to reduce the influence of friction, the rolling of the auxiliary rolling ball 205 also further reduces the friction between the ring beam 201 and the surrounding structure.

[0025] See also Figure 5 In this embodiment, the outer ring 3 of the bearing includes an outer ring 301 and a rolling groove 302; the outer ring 301 is sleeved on the outer side of the inner ring 1 of the bearing and a circle of rolling grooves 302 adapted to the rolling module 4 is arranged in the middle of the inner wall, and the outer ring 3 of the bearing also includes a docking groove 303 and a buckle groove 304; the inner wall of the outer ring 301 is provided with two layers of docking grooves 303 parallel and symmetrical up and down, the silent ring component 2 is in the docking groove 303, the outer wall of the outer ring 301 is provided with a circle of buckle grooves 304 with a prism-shaped cross-section, the outer silent component 5 is embedded and installed in the buckle groove 304, and the rolling module 4 rolls in the rolling groove 302. The rolling groove 302 is made into a matching shape for different types of columns. The silent ring assembly 2 is inserted into the docking groove 303. While it absorbs sound itself, it cooperates with the docking groove 303 to form a longitudinal staggered structure to reduce the possibility of dust falling into the rolling module 4 through the gap between the bearing inner ring 1 and the bearing outer ring 3. The sound waves are strongest at the position where the sound insulation ring 502 faces the rolling module 4. The sound waves are isolated in the bearing outer ring 3 through its own thicker sound insulation material to prevent further outward diffusion. The setting of the rubber ring 501 not only protects the sound insulation material, but also has a certain elastic buffering effect on external impact force.

[0026] When working, the rolling module 4 rolls in the rolling groove 302, and the ring beam 201 itself and the docking groove 303 form a longitudinal staggered structure to reduce the possibility of dust falling into the rolling module 4 through the gap between the bearing inner ring 1 and the bearing outer ring 3;

[0027] A part of the noise sound waves generated by the friction of the rolling module 4 will enter the hollow ring beam 201 through the through hole 203. Due to the characteristic that the propagation speed of sound waves in the air medium is slower than that in the solid material, this part of the sound waves will contact the sound-absorbing gasket 204. Through the loose and porous structure of the sound-absorbing gasket 204, the sound waves of the rolling module 4 will penetrate into the pores of the material, and will be affected by the friction and viscous resistance of air molecules, and the fine fibers will be mechanically vibrated, so that the sound energy is converted into heat energy, thereby achieving a sound absorption effect.

[0028] Another part of the sound waves is transmitted to the periphery through the structure of the bearing outer ring 3, and the sound waves are isolated in the bearing outer ring 3 by the thicker sound insulation material of the sound insulation ring 502 itself to prevent further outward diffusion.

[0029] Through the above steps, the double-layer silent ring component 2 arranged on the inner ring 1 of the bearing can isolate and absorb the noise generated by the rolling module 4, prevent the noise from spreading outward, and realize the silent operation of the bearing, and an outer silent component 5 is added to the outside of the outer ring 3 of the bearing to reduce the possibility of the noise on the rolling module 4 spreading outward with the help of the structure of the outer ring 3 of the bearing, further enhance the silent ability of the bearing, and solve the problem of noise caused by wear of balls or rollers due to the falling of dust between the inner and outer rings of the bearing.

[0030] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge scope of those skilled in the art without departing from the purpose of the present invention.

Claims

1. A bearing structure with a silent ring, comprising a bearing inner ring (1), a bearing outer ring (3), and a rolling module (4); characterized in that: It also includes a silent ring component (2) and an external silent ring component (5); the bearing inner ring (1) is sleeved on the inner side of the bearing outer ring (3) and a rolling module (4) is arranged between the two; a silent ring component (2) with sound-absorbing material attached to the surface is fixedly connected to the outer wall of the bearing inner ring (1), and the silent ring component (2) is symmetrically arranged in two layers in parallel from top to bottom, the rolling module (4) is located between the silent ring components (2), and a circle of external silent ring components (5) with sound insulation material attached to the outer wall of the bearing outer ring (3) is embedded; The silent ring assembly (2) comprises a ring beam (201), an embedding groove (202), and a through hole (203); the ring beam (201) is a circular ring with a hollow structure and is integrally connected to the outer wall of the bearing inner ring (1); the ring beam (201) is provided with an embedding groove (202) with a depth of 1 mm on both the upper and lower sides; a plurality of through holes (203) are provided in the embedding groove (202) and are evenly spaced, and the through holes (203) are connected to the cavity of the ring beam (201); The external soundproofing component (5) comprises a rubber ring (501) and a soundproofing ring (502); the soundproofing ring (502) is a composite material of asbestos and artificial leather, the soundproofing ring (502) is bonded to the inner wall of the rubber ring (501) by hot melt adhesive, the cross section of the soundproofing ring (502) is a prism-shaped and is embedded in the outer wall of the bearing outer ring (3).

2. A bearing structure with a silent ring according to claim 1, characterized in that: The silent ring assembly (2) further comprises a sound-absorbing gasket (204); the sound-absorbing gasket (204) is embedded and installed in the embedding groove (202); the sound-absorbing gasket (204) is made of slag wool material; and a metal wire mesh skeleton for shaping is provided inside the sound-absorbing gasket (204).

3. A bearing structure with a silent ring according to claim 2, characterized in that: The silent ring assembly (2) also includes an auxiliary rolling ball (205); the outer edge of the ring beam (201) has a plurality of notches arranged at equal distances, and movable auxiliary rolling balls (205) are installed in the notches.

4. A bearing structure with a silent ring according to claim 3, characterized in that: The outer ring (3) of the bearing comprises an outer ring (301) and a rolling groove (302); the outer ring (301) is sleeved on the outside of the inner ring (1) of the bearing and a circle of rolling grooves (302) adapted to the rolling module (4) is arranged in the middle of the inner wall.

5. A bearing structure with a silent ring according to claim 4, characterized in that: The bearing outer ring (3) further comprises a docking groove (303) and a buckle groove (304); the inner wall of the outer ring (301) is provided with two layers of docking grooves (303) which are parallel and symmetrical up and down, the silent ring component (2) is located in the docking groove (303), the outer wall of the outer ring (301) is provided with a circle of buckle grooves (304) with a prism-shaped cross section, and the outer silent component (5) is embedded and installed in the buckle groove (304).

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