CN218935013U - High-speed mute bearing - Google Patents

Abstract

The utility model discloses a high-speed mute bearing, which belongs to the technical field of bearings and comprises a bearing outer ring and a bearing inner ring, wherein the bearing outer ring comprises an outer ring body, a rolling groove is formed in the inner wall of the outer ring body, the bearing inner ring comprises an inner ring body, a plurality of uniformly distributed ball grooves are formed in the outer wall of the periphery of the inner ring body, balls are clamped and installed between each ball groove and the rolling groove, a ring-shaped sound absorbing cavity is formed in one side, far away from the periphery of the inner ring body, of the inner ring body and one side, far away from the periphery of the outer ring body, of the inner ring body, sound absorbing cotton is filled in each sound absorbing cavity, and the sound absorbing cotton is filled in the sound absorbing cavity through the arrangement of the sound absorbing cavities in the bearing outer ring and the inner ring body, so that vibration and noise generated by rotation of the bearing can be effectively absorbed, the bearing can be kept mute relatively during rotation, and interference on surrounding environment is reduced.

Description

High-speed mute bearing

Technical Field

The utility model relates to the field of bearings, in particular to a high-speed mute bearing.

Background

The bearing is an important part in modern mechanical equipment, the main function of the bearing is to support a mechanical rotating body, reduce the friction coefficient in the motion process of the mechanical rotating body and ensure the rotation precision of the mechanical rotating body, namely the bearing is used for bearing a shaft in a literal explanation, but the bearing is only a part of the effect, the bearing can bear radial load, the bearing can be also understood as being used for fixing a shaft, the bearing is fast and easy to realize automatic selection, namely the fixing shaft can only realize rotation and control the axial and radial movement of the bearing, and the application number is that: CN202120510645.5 discloses a high-rotation speed ball bearing, which comprises a bearing inner ring, a bearing outer ring, a retainer and rolling bodies, wherein a raceway is processed on the surface of one side of the bearing inner ring and the bearing outer ring which are oppositely arranged, a carbonitriding layer is arranged on the raceway surface of the bearing inner ring, and the rolling bodies adopt silicon carbide ceramic balls or silicon nitride ceramic balls; the retainer is made of PEEK+30% GF material. The inner ring of the bearing has higher hardness, wear resistance and pollution resistance, meanwhile, the retainer of the bearing and the rolling bodies have small mass and centrifugal force, the matching degree of the retainer and the rolling bodies with the inner ring and the outer ring of the bearing is high, the friction is small, the overall unbalanced inertia of the bearing is low, and the bearing also has higher bearing capacity. By improving the performance of the bearing, the risks of bearing locking, temperature rise and retainer fracture are reduced, the service life of the bearing is prolonged, and the use requirements of special occasions are met.

However, the above scheme still has certain defects, and the inventor finds that when the bearing rotates, the rolling bodies rub against the inner ring and the outer ring of the bearing to generate vibration so as to generate noise, and as the rotating speed is higher, the amplitude of vibration is larger, so that the decibel of the noise is larger, and the noise reduction design is not adopted in the scheme, so that the noise generated by the bearing relatively during rotation is larger, and the surrounding environment is possibly influenced.

How to develop a high-speed mute bearing to improve these problems is a urgent problem for those skilled in the art.

Disclosure of Invention

In order to make up the defects, the utility model provides a high-speed mute bearing, which aims to solve the problems that when the bearing rotates, the rolling bodies rub with the inner and outer sides of the bearing to generate vibration so as to generate noise, and the vibration amplitude is larger along with the higher rotating speed, so that the noise decibel is larger, the noise is not reduced, the noise generated by the bearing relatively during rotation is larger, and the surrounding environment is possibly influenced.

The utility model is realized in the following way: the utility model provides a high-speed silence bearing, includes bearing outer lane and bearing inner race, the bearing outer lane includes the outer lane body, outer lane body inner wall is provided with the rolling groove, the bearing inner race includes the inner circle body, inner circle body week circle outer wall is provided with a plurality of evenly distributed's ball groove, every the block is installed between ball groove and the rolling groove, the inside inner circle body week circle one side of keeping away from of outer lane body and the inside outer lane body week circle one side of keeping away from of inner lane body all is provided with and is annular sound chamber of inhaling, every inhale sound intracavity packing and inhale sound cotton.

In a preferred technical scheme of the utility model, a plurality of uniformly distributed reinforcing ribs are annularly arranged on the inner wall of the sound absorption cavity in the outer ring body to divide the sound absorption cavity in the outer ring body into a plurality of independent cavities, and sound absorption cotton is filled in each independent cavity.

In a preferred technical scheme of the utility model, annular oil cavities are respectively arranged on the other sides of the corresponding sound absorption cavities in the outer ring body and the inner ring body, a plurality of first oil through holes are arranged on the inner wall of one side of the rolling groove to enable the rolling groove to be communicated with the oil cavity in the outer ring body, and a second oil through hole is respectively arranged on the inner wall of each ball groove to enable all ball grooves to be communicated with the oil cavity in the inner ring body.

In a preferred technical scheme of the utility model, threaded holes communicated with corresponding oil cavities are formed in one side surfaces of the outer ring body and the inner ring body, a limiting seat is arranged at the bottom end of each threaded hole, a through hole is formed in the surface of each limiting seat, and a leakage-proof bolt is installed in each threaded hole in a meshed mode.

In a preferred technical scheme of the utility model, the bottom end surface of the limiting seat and the inner wall of the top of the oil cavity are kept in a plane, and the sum of the heights of each limiting seat and the leakage-proof bolt is consistent with the depth of the threaded hole.

In a preferred embodiment of the present utility model, the outer ring body and the inner ring body are both made of steel.

In a preferred embodiment of the present utility model, the diameter of the inner wall of the ball groove is identical to the diameter of the outer wall of the ball.

In a preferred technical scheme of the utility model, the top surface of each leakage-proof bolt is provided with a cross groove.

The beneficial effects of the utility model are as follows: according to the high-speed mute bearing obtained through the design, when the high-speed mute bearing is used, the sound absorption cavity is formed in the bearing outer ring and the bearing inner ring, and the sound absorption cotton is filled in the sound absorption cavity, so that vibration and noise generated by rotation of the bearing can be effectively absorbed, the bearing can be kept mute relatively when rotating, interference to the surrounding environment is reduced, the oil cavity is communicated with the rolling groove and the ball groove through the first oil through hole and the second oil through hole, the lubricating oil can be uniformly smeared on the ball when rotating, the lubrication degree of the bearing is improved, the transmission effect is guaranteed, and the service life is prolonged.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some examples of the present utility model and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic perspective view of the overall structure provided by an embodiment of the present utility model;

FIG. 2 is a schematic perspective view of the overall cross-sectional structure of the outer ring and the inner ring provided by the embodiment of the utility model;

FIG. 3 is a schematic perspective view of the overall structure of a bearing outer ring according to an embodiment of the present utility model;

FIG. 4 is a schematic perspective view of the whole cross-sectional structure of a bearing outer ring according to an embodiment of the present utility model;

FIG. 5 is a schematic perspective view of the overall structure of the bearing inner ring according to the embodiment of the utility model;

fig. 6 is a schematic view of an overall cross-sectional structure of an inner ring of a bearing according to an embodiment of the present utility model.

In the figure: 1-a bearing outer ring; 2-bearing inner rings; 3-balls; 4-a sound absorption cavity; 5-an oil cavity; 6-a threaded hole; 7-sound-absorbing cotton; 8-a leakage-proof bolt; 101-an outer ring body; 102-rolling grooves; 103-a first oil passing hole; 104-reinforcing ribs; 201-an inner ring body; 202-ball grooves; 203-a second oil passing hole; 601-limit seat.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments. All other embodiments, based on the embodiments of the utility model, which are apparent to those of ordinary skill in the art without inventive faculty, are intended to be within the scope of the utility model.

Referring to fig. 1, the present utility model provides a technical solution: the utility model provides a high-speed silence bearing, including bearing outer lane 1 and bearing inner race 2, bearing outer lane 1 includes outer lane body 101, outer lane body 101 inner wall is provided with rolling groove 102, bearing inner race 2 includes inner lane body 201, inner lane body 201 week circle outer wall is provided with a plurality of evenly distributed's ball groove 202, the block is installed ball 3 between every ball groove 202 and the rolling groove 102, the inside inner lane body 201 week circle one side of keeping away from of inner lane body 101 and the inside outer lane body 101 week circle one side of keeping away from of inner lane body 201 all is provided with and is annular sound absorbing cavity 4, every sound absorbing cavity 4 intussuseption is filled with and is inhaled sound cotton 7.

Referring to fig. 4, a plurality of evenly distributed reinforcing ribs 104 are annularly disposed on the inner wall of the sound absorbing cavity 4 inside the outer ring body 101 to divide the sound absorbing cavity 4 inside the outer ring body 101 into a plurality of independent cavities, each independent cavity is filled with sound absorbing cotton 7, the sound absorbing cotton 7 can absorb noise generated by vibration when the bearing rotates, and the reinforcing ribs 104 are disposed in the sound absorbing cavity 4 inside the outer ring body 101 to relatively improve the structural strength of the outer ring body 101, so that the service life is prolonged.

Referring to fig. 1 to 5, an annular oil cavity 5 is disposed on the other side of the corresponding sound absorbing cavity 4 inside the outer ring body 101 and the inner ring body 201, a plurality of first oil through holes 103 are disposed on the inner wall of one side of the rolling groove 102 to enable the rolling groove 102 to be communicated with the oil cavity 5 inside the outer ring body 101, and second oil through holes 203 are disposed on the inner wall of each ball groove 202 to enable all the ball grooves 202 to be communicated with the oil cavity 5 inside the inner ring body 201, when lubricating oil is filled into the oil cavity 5, the lubricating oil seeps out from the first oil through holes 103 and the second oil through holes 203 and is uniformly smeared on the surface of the balls 3 along with rotation of the balls 3, so that lubrication degree of the bearing is increased, and service life of the bearing is prolonged.

Further, screw holes 6 communicated with the corresponding oil cavities 5 are formed in one side surfaces of the outer ring body 101 and the inner ring body 201, limiting seats 601 are arranged at the bottom ends of the screw holes 6, through holes penetrating through the surfaces of the limiting seats 601 are formed in the surfaces of the screw holes, leakage-proof bolts 8 are installed in the screw holes 6 in a meshed mode, lubricating oil can be filled into the oil cavities 5 through the screw holes 6 after the leakage-proof bolts 8 are taken out, the leakage-proof bolts 8 are installed in the screw holes 6 in a meshed mode after filling is completed, the limiting seats 601 can limit the leakage-proof bolts 8, and the leakage-proof bolts 8 are prevented from penetrating into the oil cavities 5 too deeply.

Further, the bottom end surface of the limiting seat 601 keeps a plane with the inner wall of the top of the oil cavity 5, and the sum of the heights of each limiting seat 601 and the leakage-proof bolt 8 is consistent with the depth of the threaded hole 6, so that when the bottom end contacts with the limiting seat 601 after the leakage-proof bolt 8 is meshed and installed in the threaded hole 6, the top end of the leakage-proof bolt 8 also forms a plane with the surfaces of the outer ring body 101 and the inner ring body 201, the leakage-proof bolt is convenient to install in use, and the situation that one end of the leakage-proof bolt 8 protrudes is avoided.

Further, the cross groove is formed in the top end surface of each leakage-proof bolt 8, and the leakage-proof bolts 8 can be conveniently rotated by forming the cross groove, so that the leakage-proof bolts 8 can be more conveniently taken and placed.

Referring to fig. 1 to 5, the outer ring body 101 and the inner ring body 201 are made of steel, and the overall strength of the bearing can be improved by adopting the steel, and the bearing has a better service life.

Further, the diameter of the inner wall of the ball groove 202 is consistent with the diameter of the outer wall of the ball 3, so that when the ball 3 is clamped between the ball groove 202 and the rolling groove 102, the ball groove 202 can tightly limit the ball 3, and the transmission effect of the bearing is ensured.

Working principle: taking down the leak protection bolt 8 and filling lubricating oil in to the oil pocket 5 through screw hole 6, after the filling is accomplished with leak protection bolt 8 meshing installation again into screw hole 6, the noise that the ball 3 rolling friction caused vibrations to produce when the bearing rotates can be absorbed by the sound absorbing cotton 7 of inhaling in the sound chamber 4 to can keep silence relatively when making the bearing operation, and the ball 3 oozes in rolling in the oil pocket 5 by first oil hole 103 and second oil hole 203 too, follow the rotation of ball 3 and evenly break through at ball 3 surface, thereby promote the lubrication degree of bearing, guarantee the transmission effect, and increase of service life.

The above description is only of the preferred embodiments of the present utility model and is not intended to limit the present utility model, and various modifications and variations may be made to the present utility model by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims (7)

1. The utility model provides a high-speed silence bearing, its characterized in that, includes bearing outer lane and bearing inner race, the bearing outer lane includes the outer lane body, outer lane body inner wall is provided with the rolling groove, the bearing inner race includes the inner circle body, inner circle body week circle outer wall is provided with a plurality of evenly distributed's ball groove, every the block is installed between ball groove and the rolling groove, the inside inner circle body week circle one side of keeping away from of inner circle body and the inside outer lane body week circle one side of keeping away from of inner circle body all is provided with and is annular sound absorbing cavity, every inhale sound cavity intussuseption and fill and inhale sound cotton, be located be annular on the inside sound absorbing cavity inner wall of outer lane body and be provided with a plurality of evenly distributed's strengthening rib and cut apart into a plurality of independent cavitys with the inside sound absorbing cavity of outer lane, every the packing has and inhale sound cotton in the independent cavity.

2. The high speed mute bearing of claim 1, wherein: the inner wall of one side of the rolling groove is provided with a plurality of first oil through holes which enable the rolling groove to be communicated with the oil cavity positioned in the outer ring body, and each ball groove is provided with a second oil through hole which enables all ball grooves to be communicated with the oil cavity positioned in the inner ring body.

3. The high speed mute bearing of claim 1, wherein: screw holes communicated with the corresponding oil cavities are formed in the surfaces of one side of the outer ring body and one side of the inner ring body, limiting seats are arranged at the bottom ends of the screw holes, through holes are formed in the surfaces of the limiting seats, and leakage-proof bolts are installed in the screw holes in a meshed mode.

4. A high speed mute bearing as claimed in claim 3, wherein: the bottom end surface of the limiting seat and the inner wall of the top of the oil cavity are kept on the same plane, and the sum of the heights of each limiting seat and the leakage-proof bolt is identical to the depth of the threaded hole.

5. The high speed mute bearing of claim 1, wherein: the outer ring body and the inner ring body are made of steel materials.

6. The high speed mute bearing of claim 1, wherein: the diameter of the inner wall of the ball groove is consistent with that of the outer wall of the ball.

7. A high speed mute bearing as claimed in claim 3, wherein: and the top surface of each leakage-proof bolt is provided with a cross groove.

Images