CN213451325U

CN213451325U - Double-row hub bearing with stop ring

Info

Publication number: CN213451325U
Application number: CN202021786182.7U
Authority: CN
Inventors: 范中伟
Original assignee: Xinchang Shi Da Bearing Co ltd
Current assignee: Xinchang Shi Da Bearing Co ltd
Priority date: 2020-08-24
Filing date: 2020-08-24
Publication date: 2021-06-15
Anticipated expiration: 2030-08-24

Abstract

The utility model relates to the technical field of bearings, specifically speaking relates to a take biserial wheel hub bearing of retaining ring. In some vehicles, a stop ring is mounted on the outer race to prevent the bearing from moving within the bearing housing. The outer ring is generally provided with a collar type stop ring, and the stop ring is easy to loosen when the automobile rotates at high speed. A double-row hub bearing with a stop ring is characterized in that an inner ring is formed by oppositely attaching 2 first and second inner rings, the first and second inner rings and a retainer are respectively provided with an outward protruding step, and a cylindrical surface at one end of the second inner ring extends out of the end surface of an outer ring; the magnetic ring assembly is arranged on the outer side of the magnetic ring; the outer ring is provided with a stop ring which is attached to the outer ring in the radial and axial directions, and the circumference of the stop ring is also provided with a clamping part which extends outwards and slantways. The clamping part effectively prevents the bearing from moving in the bearing seat in operation, and effectively fixes the bearing. Various obstacles caused by the coaxiality problem of various parts are improved, the operation is more stable, the looseness is avoided in high-speed operation, and the service life is long.

Description

Double-row hub bearing with stop ring

Technical Field

The utility model relates to a bearing technology field, more specifically say and relate to a take biserial wheel hub bearing of retaining ring.

Background

The hub bearing is one of key parts of an automobile, can bear axial load and radial load, can bear weight, can provide accurate guide for the rotation of a hub, and is widely applied to the automobile. And the outside opening of bearing among the prior art is shorter along the axial length of bearing, has increased the risk that external pollutant invades accommodation gap and then invades inside the bearing. In some automotive transmission components, it is necessary to prevent the bearing from moving in the bearing seat during operation, and a stop ring is mounted on the outer race. Generally, a stop groove is formed on an outer ring of the bearing, and then a clamping ring type stop ring is installed on the outer ring of the bearing, so that the stop ring is easy to loosen when an automobile rotates at a high speed, and the service life of the bearing is shortened.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a reasonable in structure, operate steadily and long service life's double-row wheel hub bearing of taking retaining ring to the not enough of prior art.

A double-row hub bearing with a stop ring comprises an outer ring, an inner ring, a retainer and steel balls, wherein the inner ring is formed by oppositely attaching 2 first inner rings and 2 second inner rings, the first inner rings, the second inner rings and the retainer are respectively provided with outwards protruding steps, the two steps are oppositely arranged, the inner diameter of the first inner rings is larger than that of the second inner rings, and the cylindrical surface of one end of the second inner rings extends out of the end surface of the outer ring; the automobile hub bearing with the stop ring further comprises a sealing ring assembly positioned between the outer ring and the first inner ring and a magnetic ring assembly positioned between the outer ring and the second inner ring; the outer ring is further provided with a stop ring, the stop ring is attached to the outer ring in the radial direction and the axial direction, and a clamping part extending outwards in an inclined mode is further arranged on the circumferential direction of the stop ring. The oblique clamping part in the stop ring effectively prevents the bearing from moving in the bearing seat during operation, and the bearing is effectively fixed. The axial positioning is carried out, the types of parts are reduced, the installation is convenient, various obstacles caused by the coaxiality problem of various parts are improved, the operation is more stable, the looseness can be avoided in the high-speed operation, and the service life is long.

As a further improvement and supplement to the above solution, the present invention further comprises the following additional technical features:

the sealing ring assembly comprises a first stop block, a first sealing ring, a spring and a second stop block, wherein the second stop block is composed of four parts, two radial vertical sections, an axial transverse section and an oblique transition section between the two radial vertical sections, the first stop block is of an L-shaped structure, the first stop block and the second stop block are oppositely arranged at intervals, the first sealing ring is sleeved at two ends and the outer side of the second stop block, two V-shaped sealing lips are arranged on the first sealing ring in the axial direction of the first stop block, one concave sealing lip and one inward convex sealing lip are arranged, and the outer end of the inward convex sealing lip is sleeved with the self-tightening spring; an inclined sealing lip is arranged at the radial position of the first stop block. The sealing lip is in interference fit with the first stop block. The four-section type setting of second dog has lengthened sealedly, and sets up the seal lip in first dog two places, has further lengthened sealed length, has guaranteed sealedly, has improved the life of bearing, establishes the spring and makes the inseparable laminating of first sealing washer on first dog, and sealed effect is better.

The magnetic ring assembly comprises an L-shaped magnetic block and a second sealing ring sleeved on the magnetic block, and the magnetic block can block most of dust and moisture and can perform magnetic induction.

The stop ring is made of 65Mn and is of an integrated structure, so that the wear resistance is good, and the service life is long.

The first inner ring and the second inner ring are in arc transition at the inner diameter of the outer end, and the installation and the disassembly are convenient.

The second inner ring is arranged at the outer diameter of the extending end, the two ends of the second inner ring are in chamfer transition, the middle part of the second inner ring is connected with the middle part of the second inner ring through an arc, the oblique angle of the outer end chamfer is larger than that of the inner end chamfer, the installation is convenient, and the guidance quality is good.

The first sealing ring and the second sealing ring are made of NBR (nitrile-butadiene rubber), so that the service life is long.

Use the utility model discloses following beneficial effect can be reached: the oblique clamping part in the stop ring effectively prevents the bearing from moving in the bearing seat during operation, and the bearing is effectively fixed. The axial positioning is carried out, the types of parts are reduced, the installation is convenient, various obstacles caused by the coaxiality problem of various parts are improved, the operation is more stable, the looseness can be avoided in the high-speed operation, and the service life is long.

The sealing lips are additionally arranged, so that the sealing length is lengthened, the gap for storing the grease can be effectively increased, the lubricating effect is good, and the sealing performance is improved. The magnetic block who sets up can further prevent that impurity such as dust particle, muddy water from getting into inside the wheel hub bearing, leads to the inefficacy of wheel hub bearing. The multistage formula of dog sets up, and the bearing that can be better is strikeed, has increased rigidity for sealed effect is better, longe-lived.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a partially enlarged view of a direction a shown in fig. 1 of the present invention.

Fig. 3 is a partial enlarged view of the direction B shown in fig. 1 of the present invention.

Fig. 4 is a partially enlarged view of the direction C shown in fig. 1 of the present invention.

Fig. 5 is a partial enlarged view of the direction D shown in fig. 1 of the present invention.

Detailed Description

The following detailed description of embodiments of the present invention will be made with reference to the accompanying drawings.

As shown in fig. 1-5, the present invention relates to a double-row hub bearing with a snap ring.

The double-row hub bearing with the retaining ring comprises an outer ring 1, an inner ring, a retainer 5 and a steel ball 6, wherein the inner ring is formed by oppositely attaching a first inner ring 2 and a second inner ring 8, the first inner ring 2, the second inner ring 8 and the retainer 5 are respectively provided with outwards-protruding steps, the two steps are oppositely arranged, the inner diameter of the first inner ring 2 is larger than that of the second inner ring 8, and the cylindrical surface of one end of the second inner ring 8 extends out of the end surface of the outer ring 1. The automobile hub bearing with the stop ring further comprises a sealing ring component 3 positioned between the outer ring 1 and the first inner ring 2, and a magnetic ring component 7 positioned between the outer ring 1 and the second inner ring 8; the outer ring 1 is further provided with a stop ring 4, the stop ring 4 is attached to the outer ring 1 in the radial direction and the axial direction, a clamping part extending outwards and obliquely is further arranged on the circumference of the stop ring 4, the two parts are connected in an angle mode and are in arc transition, and the stop ring 4 and the outer ring 1 are coaxial. The engaging portion may be a full circle structure or a plurality of combinations arranged circumferentially and uniformly.

Further, the sealing ring assembly 3 includes a first stopper 31, a first sealing ring 32, a spring 33 and a second stopper 34, the second stopper 34 is composed of four parts, two radial vertical sections, an axial transverse section and an oblique transition section between the two radial vertical sections, and the first stopper 31 is of an L-shaped structure. The first stopper 31 is attached to the first inner race 2, and the second stopper 34 is attached to the outer race 1. The first stopper 31 and the second stopper 34 are oppositely arranged at intervals, the first sealing ring 32 is sleeved at two ends and the outer side of the second stopper 34, two V-shaped sealing lips are arranged at the axial position of the first stopper 31 of the first sealing ring 32, one of the two sealing lips is concave, the other sealing lip is convex, the outer end of the inner convex is sleeved with a self-tightening spring 33, and the spring 33 can be of an annular structure or other structures; an inclined sealing lip is arranged at the radial position of the first stop block 31. The sealing lip is in interference fit with the first stop 31.

Further, the magnetic ring assembly 7 includes an L-shaped magnetic block 71 and a second sealing ring 72 sleeved on the magnetic block, and the L-shaped magnetic block 71 is attached to the second inner ring 8.

Further, the material of the stop ring 4 is 65Mn, and the stop ring is of an integrated structure. The stop ring 4 is formed by stamping and has good consistency.

Further, the first inner ring 2 and the second inner ring 8 are in circular arc transition at the inner diameter of the outer end.

Furthermore, the second inner ring 8 has two end chamfers in transition at the outer diameter of the extending end, the middle arcs are connected, and the oblique angle of the outer end chamfers is larger than that of the inner end chamfers.

Further, the first seal ring 32 and the second seal ring 72 are made of NBR.

When the double-row hub bearing with the stop ring is used, the clamping part is only required to be clamped on the bearing seat.

The above is the preferred embodiment of the present invention, and the protection scope of the present invention is not limited, and the deformation and improvement made by the design idea of the present invention for those skilled in the art should be considered as the protection scope of the present invention.

Claims

1. The utility model provides a take biserial wheel hub bearing of check ring, includes outer lane (1), inner circle, holder (5) and steel ball (6), its characterized in that: the inner ring is formed by oppositely attaching a first inner ring (2) and a second inner ring (8)2, the first inner ring (2), the second inner ring (8) and the retainer (5) are respectively provided with an outward convex step, the two steps are oppositely arranged, the inner diameter of the first inner ring (2) is larger than that of the second inner ring (8), and the cylindrical surface at one end of the second inner ring (8) extends out of the end surface of the outer ring (1); the automobile hub bearing with the stop ring further comprises a sealing ring component (3) positioned between the outer ring (1) and the first inner ring (2), and a magnetic ring component (7) positioned between the outer ring (1) and the second inner ring (8); the outer ring (1) is further provided with a stop ring (4), the stop ring (4) is attached to the outer ring (1) in the radial direction and the axial direction, and a clamping part extending outwards and obliquely is further arranged on the circumference of the stop ring (4).

2. The double row hub bearing with retaining ring of claim 1, wherein: the sealing ring component (3) comprises a first stop block (31), a first sealing ring (32), a spring (33) and a second stop block (34), wherein the second stop block (34) is composed of four parts, two radial vertical sections, an axial transverse section and an oblique transition section between the two radial vertical sections, the first stop block (31) is of an L-shaped structure, the first stop block (31) and the second stop block (34) are oppositely arranged at intervals, the first sealing ring (32) is sleeved at two ends and the outer side of the second stop block (34), two V-shaped sealing lips are arranged at the axial position of the first stop block (31) of the first sealing ring (32), one of the two sealing lips is concave and one of the two sealing lips is convex, and the outer end of the convex is sleeved with the self-tightening spring (33); an inclined sealing lip is arranged at the radial position of the first stop block (31); the sealing lip is in interference fit with the first stop block (31).

3. The double row hub bearing with retaining ring of claim 2, wherein: the magnetic ring assembly (7) comprises an L-shaped magnetic block (71) and a second sealing ring (72) sleeved on the magnetic block.

4. The double row hub bearing with retaining ring of claim 1, wherein: the material of the stop ring (4) is 65Mn, and the stop ring is of an integrated structure.

5. The double row hub bearing with retaining ring of claim 1, wherein: the first inner ring (2) and the second inner ring (8) are in circular arc transition at the inner diameter of the outer end.

6. The double row hub bearing with retaining ring of claim 1, wherein: and the second inner ring (8) is arranged at the outer diameter of the extending end, the two ends of the second inner ring are in chamfer transition, the middle part of the second inner ring is connected by an arc, and the oblique angle of the outer end chamfer is greater than that of the inner end chamfer.

7. The double row hub bearing with retaining ring of claim 3, wherein: the first sealing ring (32) and the second sealing ring (72) are made of NBR.