CN210371693U

CN210371693U - Mute type hub unit bearing with noise reduction structure

Info

Publication number: CN210371693U
Application number: CN201921346147.0U
Authority: CN
Inventors: 徐立扬; 徐国柱
Original assignee: Hangzhou Elens Machinery Co Ltd
Current assignee: Hangzhou Elens Machinery Co Ltd
Priority date: 2019-08-20
Filing date: 2019-08-20
Publication date: 2020-04-21
Anticipated expiration: 2029-08-20

Abstract

The utility model discloses a silence formula wheel hub unit bearing with structure of making an uproar falls, including inner circle and outer lane, the left side of inner circle runs through the outer lane and extends to the right side of outer lane, the fixed slot has been seted up in the inside left side of inner circle, the inside of inner circle and the right side that is located the fixed slot have seted up first movable groove, second movable groove has been seted up in the left side of outer lane, the right side swing joint of first movable inslot wall has first ball, the utility model relates to a wheel hub bearing technical field. This silent type wheel hub unit bearing with structure of making an uproar falls through the ball rotation can reduce the frictional force between inner circle and the outer lane to reduce the friction sound between the interior outer lane, effectively avoid the interference that the friction sound led to the fact the inspector, improve the accuracy of inspection result, through the inside lubricating oil that adds of oil feed hole to the bearing, can make the frictional force between each part remain stable, effectively prolong the life of bearing, improved the practicality.

Description

Mute type hub unit bearing with noise reduction structure

Technical Field

The utility model relates to a wheel hub bearing technical field specifically is a silence formula wheel hub unit bearing with structure of making an uproar falls.

Background

The hub bearing is one of key parts of an automobile, has the main functions of bearing weight and providing precise guide for the rotation of a hub, so that the hub bearing unit is required to bear axial load and radial load, is developed on the basis of a standard angular contact ball bearing and a tapered roller bearing, integrates two sets of bearings, has the advantages of good assembly performance, capability of omitting clearance adjustment, light weight, compact structure, large load capacity, capability of filling lubricating grease into a sealing bearing in advance, capability of omitting external hub sealing, free maintenance and the like, is widely used in cars, and has the tendency of gradually expanding application in trucks.

When the hub bearing works, if the bearing is not pressed by hands with large pressure and can generate relative displacement with the outer ring, friction can occur between the inner ring and the outer ring of the bearing, friction sound is generated, because the identification of the bearing noise is one of the standards for judging whether the bearing is damaged, the accuracy of a judgment result can be directly influenced by the friction sound between the parts, the existing hub bearing is only coated with lubricating oil during assembly, after the hub bearing is used for a long time, the friction force between each part of the bearing is increased, the service life of the bearing can be directly influenced, and the practicability is reduced.

SUMMERY OF THE UTILITY MODEL

The utility model provides a not enough to prior art, the utility model provides a silence formula wheel hub unit bearing with structure of making an uproar falls has solved the friction sound that produces between the interior outer lane and can influence the inspector and judge whether the bearing damages, and can't add lubricating oil in the use, reduces the life of bearing, the lower problem of practicality.

In order to achieve the above purpose, the utility model discloses a following technical scheme realizes: a silent hub unit bearing with a noise reduction structure comprises an inner ring and an outer ring, wherein the left side of the inner ring penetrates through the outer ring and extends to the right side of the outer ring, a fixed groove is formed in the left side of the inner ring, a first movable groove is formed in the inner part of the inner ring and is positioned on the right side of the fixed groove, a second movable groove is formed in the left side of the outer ring, a first ball is movably connected to the right side of the inner wall of the first movable groove, the right side of the first ball penetrates through the first movable groove and the inner ring and extends to the outer part of the inner ring, movable rods are connected to the top and the bottom of the left side of the inner wall of the first movable groove in a sliding mode, one ends of the two movable rods penetrate through the first movable groove and the fixed groove and extend to the inside of the fixed groove, a first limiting plate is fixedly connected to one end of the two movable rods positioned in the, and a second limiting plate is connected between the opposite sides of the two sliding rails in a sliding manner.

Preferably, the left top and the bottom of first limiting plate just are located the equal fixedly connected with first spring in surface of two movable rods, two the one end that first limiting plate was kept away from to first spring all with the left side fixed connection of first activity inslot wall, two the movable rod is located the equal fixedly connected with baffle of the inside one end of fixed slot.

Preferably, the top and the bottom on the right side of the second limiting plate are fixedly connected with second springs, and the two ends, far away from the second limiting plate, of the second springs are fixedly connected with the right side of the inner wall of the second movable groove.

Preferably, the top of the outer ring surface is provided with an oil inlet, and the top of the inner wall of the oil inlet is in threaded connection with an oil seal.

Preferably, an oil delivery channel is formed in the outer ring, and the bottom end of the oil inlet is communicated with the oil delivery channel.

Preferably, the left end of the oil delivery channel penetrates through the outer ring and extends to the left side of the outer ring, and the bottom of the surface of the oil delivery channel is communicated with the oil guide hole.

Preferably, a retainer is movably connected between the surface of the inner ring and the inner wall of the outer ring, and a second ball is slidably connected inside the retainer.

Preferably, the left side of the surface of the inner ring is fixedly connected with a first flange, the right side of the surface of the outer ring is fixedly connected with a second flange, and the top and the bottom of the right side of the first flange are both in threaded connection with bolts.

Advantageous effects

The utility model provides a silence formula wheel hub unit bearing with structure of making an uproar falls. Compared with the prior art, the method has the following beneficial effects:

(1) the silent hub unit bearing with the noise reduction structure is characterized in that a first movable groove is formed in the inner ring and positioned on the right side of the fixed groove, the right side of the inner wall of the first movable groove is movably connected with a first ball, one end of each of two movable rods positioned in the first movable groove is fixedly connected with a first limiting plate, the top and the bottom of the inner wall of the second movable groove are fixedly connected with slide rails, and a second limit plate is connected between the opposite sides of the two slide rails in a sliding way, when the inner ring and the outer ring are displaced relatively, the second limit plate will abut against the surface of the first ball, the rotation of the ball can reduce the friction between the inner ring and the outer ring, thereby reducing the friction sound between the inner ring and the outer ring, when the inspector judges whether the bearing is damaged, the interference of the friction sound to the inspector is effectively avoided, the accuracy of the inspection result is improved, the judgment error is avoided, and the economic loss is reduced.

(2) This silence formula wheel hub unit bearing with structure of making an uproar falls has seted up the inlet port through the top on outer lane surface, and the oil transportation passageway has been seted up to the inside of outer lane to the bottom and the oil transportation passageway of inlet port are linked together, and the bottom intercommunication on oil transportation passageway surface has the oil guide hole, and the long-time back of working of bearing can be through the oil inlet to the inside lubricating oil that adds of bearing, makes the frictional force between each part remain stable, effectively prolongs the life of bearing, has improved the practicality.

Drawings

FIG. 1 is a sectional view of the structure of the present invention;

fig. 2 is a perspective view of the inner ring and the first flange structure of the present invention;

FIG. 3 is an enlarged view of a portion of FIG. 1;

fig. 4 is a partially enlarged view of the point B in fig. 1 according to the present invention.

In the figure: the oil seal structure comprises an inner ring 1, an outer ring 2, a fixed groove 3, a first movable groove 4, a second movable groove 5, a first ball 6, a movable rod 7, a first limiting plate 8, a sliding rail 9, a second limiting plate 10, a first spring 11, a baffle 12, a second spring 13, an oil inlet 14, an oil seal 15, an oil delivery channel 16, an oil guide hole 17, a retainer 18, a second ball 19, a first flange 20, a second flange 21 and a bolt 22.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-4, the present invention provides a technical solution: a silent hub unit bearing with a noise reduction structure comprises an inner ring 1 and an outer ring 2, wherein the left side of the surface of the inner ring 1 is fixedly connected with a first flange 20, the right side of the surface of the outer ring 2 is fixedly connected with a second flange 21, the second flange 21 is provided with a threaded hole and can be fixed through a screw, the top and the bottom of the right side of the first flange 20 are both in threaded connection with a bolt 22, a retainer 18 is movably connected between the surface of the inner ring 1 and the inner wall of the outer ring 2, the retainer 18 can limit and make the second ball 19 to prevent the second ball 19 from displacing, the inside of the retainer 18 is slidably connected with the second ball 19, an oil conveying channel 16 is arranged inside the outer ring 2, the oil conveying channel 16 extends to the left side of the outer ring 2 and can add lubricating oil to the first ball 6, the left end of the oil conveying channel 16 penetrates through the outer ring 2 and extends, the bottom of the surface of the oil transportation channel 16 is communicated with an oil guide hole 17, the bottom end of the oil inlet hole 14 is communicated with the oil transportation channel 16, the top of the surface of the outer ring 2 is provided with an oil inlet hole 14, when the bearing is installed, the oil inlet hole 14 is always positioned at the top of the bearing, the top of the inner wall of the oil inlet hole 14 is in threaded connection with an oil seal 15, the oil seal 15 is provided with a sealing ring for preventing oil leakage, the left side of the inner ring 1 penetrates through the outer ring 2 and extends to the right side of the outer ring 2, the left side of the inner ring 1 is provided with a fixed groove 3, the inner part of the inner ring 1 is provided with a first movable groove 4, the left side of the outer ring 2 is provided with a second movable groove 5, the right side of the inner wall of the first movable groove 4 is movably connected with a first ball 6, the right side of the first ball 6 penetrates through the first movable groove 4 and the, one end of each of the two movable rods 7 penetrates through the first movable groove 4 and the fixed groove 3 and extends to the inside of the fixed groove 3, one end of each of the two movable rods 7, which is positioned inside the first movable groove 4, is fixedly connected with a first limiting plate 8, the top and the bottom of the left side of the first limiting plate 8, which are positioned on the surface of each of the two movable rods 7, are fixedly connected with first springs 11, one end of each of the two first springs 11, which is far away from the first limiting plate 8, is fixedly connected with the left side of the inner wall of the first movable groove 4, one end of each of the two movable rods 7, which is positioned inside the fixed groove 3, is fixedly connected with a baffle 12, the top and the bottom of the, and sliding connection has second limiting plate 10 between the relative one side of two slide rails 9, the top and the equal fixedly connected with second spring 13 in bottom on second limiting plate 10 right side, and the one end that second limiting plate 10 was kept away from to two second springs 13 all with the right side fixed connection of second activity groove 5 inner wall.

When the bearing is stressed during use, a certain left-right relative displacement can occur between the inner ring 1 and the outer ring 2, at the moment, the right side of the inner ring 1 and the left side of the outer ring 2 are close to each other, the second limiting plate 10 is in contact with the first ball 6, meanwhile, the inner ring 1 and the outer ring 2 rotate relatively, at the moment, the first ball 6 rotates, when the two sides of the bearing are stressed greatly, the first limiting plate 8 is stressed to move leftwards, the baffle 12 is pushed to move through the movable rod 7, at the moment, the first spring is compressed, the second limiting plate 10 is stressed to move rightwards along the sliding rail 9, the second spring 13 is compressed, the first ball 6 can smoothly rotate, the friction force between the inner ring 1 and the outer ring 2 is reduced, so that the friction sound is reduced, when the forces at the two sides of the bearing are gradually reduced, the right side of the inner ring 1 and the left side of the outer ring 2 are gradually far away from each other, the first limiting plate 8 and the second limiting plate 10 can restore, during the operation of the bearing, the second ball 19 rotates, after the bearing operates for a period of time, the oil seal 15 is unscrewed, the lubricating oil can be injected through the oil inlet 14, the lubricating oil enters the oil delivery passage 16 and then is coated on the surface of the second ball 19 through the oil guide hole 17, the friction force between the second ball 19 and the inner ring 1 and the outer ring 2 can be reduced, and meanwhile, the lubricating oil flows into the gap between the inner ring 1 and the outer ring 2 from the oil delivery passage 16 and can lubricate the first ball 6.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a silence formula wheel hub unit bearing with structure of making an uproar falls, includes inner circle (1) and outer lane (2), the left side of inner circle (1) runs through outer lane (2) and extends to the right side of outer lane (2), its characterized in that: the inner ring is characterized in that a fixed groove (3) is formed in the left side of the inner part of the inner ring (1), a first movable groove (4) is formed in the inner part of the inner ring (1) and positioned on the right side of the fixed groove (3), a second movable groove (5) is formed in the left side of the outer ring (2), a first ball (6) is movably connected to the right side of the inner wall of the first movable groove (4), the right side of the first ball (6) penetrates through the first movable groove (4) and the inner ring (1) and extends to the outside of the inner ring (1), movable rods (7) are slidably connected to the top and the bottom of the left side of the inner wall of the first movable groove (4), one ends of the two movable rods (7) penetrate through the first movable groove (4) and the fixed groove (3) and extend to the inner part of the fixed groove (3), and first limiting plates (8) are fixedly connected to the ends of the two movable rods (, the top and the bottom of second activity groove (5) inner wall all fixedly connected with slide rail (9) to sliding connection has second limiting plate (10) between the relative one side of two slide rails (9).

2. The silent hub unit bearing with the noise reduction structure of claim 1, wherein: the equal fixedly connected with in surface of the left top of first limiting plate (8) and bottom and being located two movable rods (7) first spring (11), two the one end that first limiting plate (8) were kept away from in first spring (11) all with the left side fixed connection of first movable groove (4) inner wall, two the movable rod (7) are located the equal fixedly connected with baffle (12) of the inside one end of fixed slot (3).

3. The silent hub unit bearing with the noise reduction structure of claim 1, wherein: the top and the bottom on second limiting plate (10) right side all fixedly connected with second spring (13), two the one end that second limiting plate (10) were kept away from in second spring (13) all with the right side fixed connection of second activity groove (5) inner wall.

4. The silent hub unit bearing with the noise reduction structure of claim 1, wherein: an oil inlet hole (14) is formed in the top of the surface of the outer ring (2), and an oil seal (15) is connected to the top of the inner wall of the oil inlet hole (14) in a threaded mode.

5. The silent hub unit bearing with noise reduction structure of claim 4, wherein: an oil delivery channel (16) is formed in the outer ring (2), and the bottom end of the oil inlet hole (14) is communicated with the oil delivery channel (16).

6. The silent hub unit bearing with noise reduction structure of claim 5, wherein: the left end of the oil conveying channel (16) penetrates through the outer ring (2) and extends to the left side of the outer ring (2), and the bottom of the surface of the oil conveying channel (16) is communicated with an oil guide hole (17).

7. The silent hub unit bearing with the noise reduction structure of claim 1, wherein: a retainer (18) is movably connected between the surface of the inner ring (1) and the inner wall of the outer ring (2), and a second ball (19) is connected in the retainer (18) in a sliding manner.

8. The silent hub unit bearing with the noise reduction structure of claim 1, wherein: the inner ring (1) is fixedly connected with a first flange (20) on the left side of the surface, the outer ring (2) is fixedly connected with a second flange (21) on the right side of the surface, and the top and the bottom of the right side of the first flange (20) are both connected with bolts (22) in a threaded manner.