CN115076241B

CN115076241B - Bearing waterproof assembly and bearing assembly

Info

Publication number: CN115076241B
Application number: CN202111370585.2A
Authority: CN
Inventors: 刘利宝
Original assignee: Great Wall Motor Co Ltd
Current assignee: Great Wall Motor Co Ltd
Priority date: 2021-11-18
Filing date: 2021-11-18
Publication date: 2024-09-27
Anticipated expiration: 2041-11-18
Also published as: CN115076241A

Abstract

The invention provides a bearing waterproof component and a bearing assembly, the bearing waterproof component of the invention comprises a mounting ring and a waterproof ring which are connected together, the bearing waterproof component is arranged on a bearing seat through the mounting ring, the waterproof ring can keep off to put in the one end of bearing frame, and waterproof ring's outer terminal surface is equipped with along waterproof ring circumference arrangement's first depressed part, and along waterproof ring's radial, first depressed part is located waterproof ring's middle part. According to the bearing waterproof assembly, the waterproof ring is blocked at one end of the bearing seat, so that a good waterproof effect can be achieved, and the first concave part is arranged on the outer end face, so that water flow can be thrown away from the bearing waterproof assembly through the side wall of the first concave part in practical application, and a good waterproof effect can be further achieved.

Description

Bearing waterproof assembly and bearing assembly

Technical Field

The invention relates to the technical field of bearing waterproofing, in particular to a bearing waterproofing assembly. Meanwhile, the invention also relates to a bearing assembly provided with the bearing waterproof assembly.

Background

The current market driving shaft mainly comprises a fixed joint assembly, a movable joint assembly, a shaft rod, a clamp, a sheath and the like, wherein the fixed joint assembly mainly comprises an inner star wheel, a retainer, a steel ball and an outer ball cage, the movable joint assembly mainly comprises three pin joints, an inner ring, a rolling needle, an outer ring and an inner ball cage, and the structure can ensure that the driving shaft transmits torsion under high-speed operation and complete the steering function of the whole vehicle.

The working environment of the vehicle is severe, and the vehicle often encounters working conditions such as rainy and snowy weather, passing through a ditch and a river, and the like, so that the vehicle often faces the water environment. Because the driving shaft is positioned at the lower part of the chassis of the vehicle, the driving shaft with the bearing seat can encounter the water inlet condition of the bearing due to wading, the bearing can rust under the condition of long-time water pollution, the bearing and the bearing seat are severely corroded for a long time, abnormal sound and even fracture of the bearing can be caused, the service life of the driving shaft is seriously influenced, and customer complaints are caused.

Disclosure of Invention

In view of the foregoing, the present invention is directed to a bearing waterproof assembly that has a good waterproof performance.

In order to achieve the above purpose, the technical scheme of the invention is realized as follows:

a waterproof assembly of a bearing comprises a mounting ring and a waterproof ring which are connected together;

the mounting ring is used for mounting the bearing waterproof assembly on a bearing seat;

the waterproof ring is used for being blocked at one end of the bearing seat;

The outer terminal surface of waterproof ring is equipped with along waterproof ring circumference arranges first depressed part, and follows waterproof ring's radial, first depressed part is located waterproof ring's middle part.

Further, corresponding to the first concave part, a first convex part which is arranged along the circumference of the waterproof ring is arranged on the inner end surface of the waterproof ring; the first protruding portion is arranged corresponding to the inner hole wall of the bearing seat.

Further, a second protruding part which is circumferentially arranged along the waterproof ring is arranged on the outer side of the waterproof ring; the second protrusion is disposed proximate the mounting ring relative to the first recess.

Further, corresponding to the second protruding portion, a second recessed portion is formed in the inner end face of the waterproof ring and circumferentially arranged along the waterproof ring.

Compared with the prior art, the invention has the following advantages:

(1) The bearing waterproof assembly disclosed by the invention has the advantages that the waterproof ring is blocked at one end of the bearing seat, so that a better waterproof effect can be achieved, and the first concave part is arranged on the outer end surface, so that water flow can be thrown off from the bearing waterproof assembly through the side wall of the first concave part in actual application, and a better waterproof effect can be further achieved.

(2) Corresponding to the first concave part, the first convex part is formed on the inner end surface of the waterproof ring, so that the thickness of the waterproof ring is convenient to thin, and the waterproof ring is beneficial to processing and forming.

(3) The second protruding part is arranged on the outer end face of the waterproof ring and can be matched with the first recessed part, so that a good waterproof effect is achieved.

(4) The second concave part is arranged on the inner end surface of the waterproof ring, so that the thickness of the waterproof ring is reduced, and the processing and forming of the bearing waterproof assembly are further facilitated.

Another object of the present invention is to provide a bearing assembly, including a bearing housing, a bearing assembled in an inner hole of the bearing housing, and a shaft body penetrating in an inner ring of the bearing; at least one end of the bearing seat is provided with the bearing waterproof assembly; and a gap is arranged between the waterproof ring and the shaft body.

Further, the mounting ring is sleeved on the bearing seat.

Further, a first fixing part for fixing the bearing is arranged on the wall of the inner hole; the first fixing part comprises a retaining shoulder; or, the first fixing part comprises a first clamping groove formed in the hole wall of the inner hole and a first clamping spring embedded in the first clamping groove.

Further, at least one end of the bearing is provided with an oil seal, and the oil seal is assembled in an inner hole of the bearing seat and sleeved on the shaft body.

Further, a pump wheel is arranged on one side of the oil seal, which is far away from the bearing; the pump impeller is positioned in the inner hole and sleeved on the shaft body.

Further, the shaft body is provided with a second fixing part for fixing the bearing, the second fixing part comprises a shaft shoulder, or the second fixing part comprises a second clamping groove formed in the shaft body, and a second clamping spring embedded in the second clamping groove.

Further, the bearing seat is provided with an installation part; the bearing seat is mounted on an external carrier through the mounting part.

Further, a protrusion is formed on the bearing seat; the mounting portion includes a mounting hole formed on the protrusion.

Compared with the prior art, the invention has the following advantages:

(1) According to the bearing assembly, the waterproof ring is blocked at one end of the bearing seat by using the bearing waterproof assembly, so that a good waterproof effect can be achieved, and the outer end face is provided with the first concave part, so that water flow can be thrown away from the bearing waterproof assembly through the side wall of the first concave part in actual application, the bearing can be further protected, and the service life of the bearing assembly is prolonged.

(2) The mounting ring is sleeved on the bearing seat, and the mounting is convenient.

(3) The first fixing part is designed to be a structure of a shoulder or a first clamping groove matched with the first clamping spring, is of a more common structure, is convenient to process and assemble, and is low in cost.

(4) And an oil seal is arranged at the end part of the bearing, so that the lubrication of the bearing is facilitated.

(5) The pump wheel is arranged on the shaft body and can be matched with the bearing waterproof assembly, so that the waterproof effect is further enhanced.

(6) The second fixing part is designed to be a structure of a shaft shoulder or a second clamping groove matched with the second clamping spring, so that the structure is a more common structure, the processing and the assembly are convenient, and the cost is lower.

(7) The mounting part is arranged on the bearing seat, so that the bearing seat is convenient to mount on an external carrier, and the mounting part is arranged as a mounting hole on the protrusion, so that the bearing seat is convenient to form and process.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention. In the drawings:

fig. 1 is a front view of a bearing waterproof assembly according to an embodiment of the present invention;

FIG. 2 is a cross-sectional view taken along line A-A of FIG. 1;

FIG. 3 is a schematic view of a bearing assembly according to a second embodiment of the present invention;

FIG. 4 is an exploded view of FIG. 3;

FIG. 5 is a left side view of FIG. 3;

FIG. 6 is a cross-sectional view taken along line B-B of FIG. 5;

fig. 7 is an enlarged view of a portion C in fig. 6;

FIG. 8 is a schematic view of the structure of FIG. 3 at another view angle;

FIG. 9 is a cross-sectional view taken along line D-D of FIG. 8;

fig. 10 is a schematic structural view of a bearing seat according to a second embodiment of the present invention;

FIG. 11 is a cross-sectional view taken along line E-E of FIG. 10;

FIG. 12 is a schematic view of a shaft according to a second embodiment of the present invention;

FIG. 13 is a left side view of FIG. 12;

fig. 14 is a schematic structural view of a first bearing waterproof assembly according to a second embodiment of the present invention in an assembled state with a first pump impeller;

FIG. 15 is a cross-sectional view taken along line F-F of FIG. 14;

fig. 16 is a schematic structural diagram of a first oil seal according to a second embodiment of the present invention;

FIG. 17 is a cross-sectional view taken along line G-G of FIG. 16;

Fig. 18 is a schematic structural diagram of a first pump impeller according to a second embodiment of the invention;

fig. 19 is a sectional view taken along line H-H of fig. 18.

Reference numerals illustrate:

1. A first bearing waterproof assembly; 2. a bearing seat; 3. a bearing; 4. a shaft body; 5. a first oil seal; 6. a first pump wheel; 7. a second bearing waterproof assembly; 8. a second oil seal; 9. a second pump wheel; 10. a first clamp spring; 11. a second clamp spring;

101. a mounting ring; 102. a waterproof ring;

1021. A first concave portion; 1022. a first outer flange; 1023. a second outer convex portion; 1024. a second concave portion;

201. A shoulder; 202. a first clamping groove; 203. a mounting part; 2031. a protrusion; 2041. a first groove; 2042. a second groove;

401. A shaft shoulder; 402. a second clamping groove; 403. a step surface;

601. Waterproof teeth.

Detailed Description

It should be noted that, without conflict, the embodiments of the present invention and features of the embodiments may be combined with each other.

In the description of the present invention, it should be noted that the azimuth or positional relationship indicated by the terms "upper", "lower", "inner", "back", etc. are based on the azimuth or positional relationship shown in the drawings, and are merely for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the apparatus or element referred to must have a specific azimuth, be constructed and operated in a specific azimuth, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In addition, in the description of the present invention, the terms "mounted," "connected," and "connecting" are to be construed broadly, unless otherwise specifically defined. For example, the connection can be fixed connection, detachable connection or integrated connection; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art in combination with specific cases.

The invention will be described in detail below with reference to the drawings in connection with embodiments.

Example 1

The present embodiment relates to a bearing waterproof assembly, as shown in fig. 1 and 2, which mainly includes a mounting ring 101 and a waterproof ring 102 connected together, wherein the mounting ring 101 is used for mounting the bearing waterproof assembly on a bearing seat 2 described below, and the waterproof ring 102 is used for being blocked at one end of the bearing seat 2. The main improvement of the present embodiment is that a first recess 1021 is provided on the outer end surface of the waterproof ring 102, which is arranged along the circumferential direction of the waterproof ring 102.

Based on the above description of the overall structure, and in order to facilitate better understanding of the bearing waterproofing assembly of the present embodiment, the structure of the bearing waterproofing assembly will be specifically described below with reference to fig. 1 and 2.

In a preferred embodiment, the mounting ring 101 is sleeve-shaped, and can be fitted over an end of the bearing housing 2 described below, and the waterproof ring 102 is placed on one end of the bearing housing 2 to provide a waterproof effect. It should be noted that, the mounting ring 101 and the bearing seat 2 may be press-fit and interference-connected, or may be screw-connected, snap-connected, or may be mounted on the bearing seat 2 by using an external connection member such as a bolt, a rivet, or the like.

In this embodiment, as shown in fig. 1 and 2 and in combination with fig. 6 and 7, along the radial direction of the waterproof ring 102, the first recess 1021 is located in the middle of the waterproof ring 102, and the inner hole of the waterproof ring 102 is a shaft hole, which is disposed in a clearance with the shaft body 4 described below. When the waterproof ring 102 is applied to the wading working condition, the water on the shaft body 4 flows along the main water throwing path a and the backflow water throwing path b shown in fig. 7, so that the water can be thrown off the bearing waterproof assembly, and the bearing 3 is effectively protected.

As a preferred embodiment, corresponding to the first recess 1021, a first outer protrusion 1022 is provided on the inner end surface of the waterproof ring 102, which is arranged along the circumferential direction of the waterproof ring 102, and the first outer protrusion 1022 is arranged corresponding to the inner hole wall of the bearing housing 2. So set up, have better waterproof effect, be convenient for attenuate the thickness of waterproof ring 102, and be favorable to the machine-shaping. In addition, the portion of the inner end of the waterproof ring 102 corresponding to the first recess 1021 may be of course be a planar structure, which only adds weight to the waterproof ring 102 and is inconvenient to process.

As a preferred embodiment, a second outer convex portion 1023 arranged along the circumferential direction of the waterproof ring 102 is further provided on the outer side of the waterproof ring 102, and the second outer convex portion 1023 is arranged close to the mounting ring 101 with respect to the first concave portion 1021. Thus, the second outer protruding portion 1023 can cooperate with the first concave portion 1021 to achieve a better waterproof effect.

In this embodiment, as shown in fig. 2, the second outer protrusion 1023 has a height of the left protrusion 2031 higher than the inner hole edge of the waterproof ring 102, and has a good waterproof effect.

As a preferred embodiment, there is a second recess 1024 arranged along the circumference of the waterproof ring 102 at the inner end surface of the waterproof ring 102 corresponding to the second outer convex portion 1023, which is advantageous in reducing the thickness of the waterproof ring 102 and further in the molding of the bearing waterproof assembly.

By the arrangement of the structure, the waterproof ring 102 and the mounting ring 101 can be formed by stamping materials with the same wall thickness, and the bearing waterproof assembly is of an integrally formed structure, so that the processing is convenient. The waterproof ring 102 thus formed is equivalent to being formed by sequentially bending three ring bodies, in the state shown in fig. 2, from outside to inside in the radial direction of the mounting ring 101, the first ring body, the second ring body and the third ring body are sequentially connected, and the outer edge of the first ring body is connected with the mounting ring 101, the first ring body is inclined inwards while extending to the side far away from the mounting ring 101, the second ring body is inclined inwards while extending to the side far away from the mounting ring 101, and the third ring body is inclined inwards while extending to the side far away from the mounting ring 101.

The waterproof ring 102 of the bearing waterproof assembly of this embodiment can be blocked at one end of the bearing seat 2, so as to play a better waterproof role, and since the outer end surface is provided with the first concave portion 1021, during practical application, water flow is thrown away from the bearing waterproof assembly through the side wall of the first concave portion 1021, so that a better waterproof effect can be further played.

Example two

The present embodiment relates to a bearing assembly, as shown in fig. 3 to 9, which mainly includes a bearing housing 2, a bearing 3 fitted in an inner hole of the bearing housing 2, and a shaft body 4 penetrating into an inner ring of the bearing 3, and further includes bearing waterproofing assemblies as in the first embodiment provided at both ends of the bearing housing 2.

Referring to the structure of the bearing housing 2 shown in fig. 10 and 11, it includes a sleeve-shaped main body having an inner hole, in which a bearing mounting position, a mounting position of the first oil seal 5 and a mounting position of the second oil seal 8 are disposed, and the mounting position of the first oil seal 5 and the mounting position of the second oil seal 8 are disposed at both sides of the bearing mounting position, so that when the bearing 3 is mounted in the inner hole of the bearing housing 2, the first oil seal 5 and the second oil seal 8 can be disposed at both sides of the bearing 3, thereby facilitating lubrication of the bearing 3.

In order to facilitate the mounting of the bearing housing 2 on an external carrier, a mounting portion 203 is provided on the bearing housing 2, and as a preferred embodiment, a protrusion 2031 is formed on the outer circumferential surface of the bearing housing 2, and the mounting portion 203 includes a mounting hole formed on the protrusion 2031. So set up, when bearing frame 2 installs on the outside carrier, can adopt the connecting piece that passes through the mounting hole like the bolt to be connected with the outside carrier, and set up the installation department 203 as the mounting hole on protruding 2031, the shaping is convenient and processing is convenient.

It should be noted that, the protrusion 2031 on the outer peripheral surface of the bearing housing 2 may have a shape other than that shown in fig. 10, for example, may have a circular shape, a square shape, a triangular shape, or the like, and may be one or more of the protrusions arranged around the outer peripheral surface of the bearing housing 2 at intervals in the circumferential direction of the bearing housing 2, and the number of the mounting holes is preferably two or more, so as to facilitate improvement of the reliability of mounting the bearing housing 2 on the external carrier.

In addition, a first fixing portion for fixing the bearing 3 is provided on the hole wall of the inner hole of the bearing seat 2, in this embodiment, the first fixing portion may use a shoulder 201, and besides the shoulder 201, the first fixing portion may also use a first clamping groove 202 provided on the hole wall of the inner hole, and a first clamping spring 10 embedded in the first clamping groove 202.

It should be noted, however, that for convenience of assembly, both first fixing portions may be configured such that the first clip spring 10 and the first clip groove 202 cooperate, or only one of the first fixing portions may be configured such that the shoulder 201 is used. In this structure, the first fixing portion is a structure in which the shoulder 201 or the first clamping groove 202 is matched with the first clamping spring 10, and is a more common structure, so that the processing and the assembly are convenient, and the cost is lower.

At both ends of the bearing housing 2, a first groove 2041 and a second groove 2042 are formed respectively, so that the first bearing waterproof assembly 1 and the second bearing waterproof assembly 7 are installed respectively, and after the first bearing waterproof assembly 1 and the second bearing waterproof assembly 7 are assembled on the bearing housing 2, the outer wall of the mounting ring 101 can be kept flush with the outer wall of the bearing housing 2.

The structure of the shaft body 4 is shown in fig. 12 and 13, and the shaft body 4 in this embodiment is a three-pin shaft fork in a vehicle drive shaft assembly, and it should be understood that the shaft body 4 may be a three-pin shaft fork, and of course, other shaft bodies 4 may be used.

In this embodiment, the shaft body 4 is provided with a second fixing portion for fixing the bearing 3, and as a preferred embodiment, the second fixing portion includes a shaft shoulder 401, and in addition to the structure of the shaft shoulder 401, the second fixing portion may also include a second clamping groove 402 formed on the shaft body 4, and a second clamping spring 11 embedded in the second clamping groove 402.

It should be noted that, for convenience in assembly, the two second fixing portions for fixing the inner ring of the bearing 3 may be both configured as a shoulder 401 or a structure in which the second clamping groove 402 is matched with the second clamping spring 11, or only one second fixing portion adopts the shoulder 401, and both the two second fixing portions are relatively common structures, so that the processing and assembly are convenient, and the cost is relatively low.

The shaft body 4 has a stepped surface 403 formed in correspondence to the bearing waterproof assembly portion, and the shaft hole edge of the waterproof ring 102 is aligned with the stepped surface 403 after the first bearing waterproof assembly 1, the bearing housing 2, and the shaft body 4 are assembled.

The step surface 403 is preferably designed as a shoulder with an angular edge, and the outer surface of the portion of the shaft body 4 and the step surface 403 may be provided with a texture or a plurality of protruding structures for facilitating water drainage, so that the separation of water on the shaft body 4 is easy to be realized as much as possible, and the bearing waterproof assembly may be also designed with a texture or a plurality of protruding structures for facilitating water drainage, and a specific water drainage structure may be designed with reference to the waterproof teeth 601 of the pump wheel surface described below.

Still referring to fig. 7, oil seals are disposed at both ends of the bearing 3, and the oil seals are assembled in the inner holes of the bearing seat 2 and sleeved on the shaft body 4 to facilitate lubrication of the bearing 3. In order to achieve a good waterproof effect, a pump wheel is arranged on one side, far away from the bearing 3, of the oil seal, the pump wheel is located in the inner hole and sleeved on the shaft body 4, a gap is reserved between the pump wheel and the wall of the inner hole of the bearing seat 2, and the pump wheel can be matched with a bearing waterproof assembly to further strengthen the waterproof effect.

For better understanding of the present embodiment, and for convenience of description, each of the components sequentially arranged on the left side of the bearing 3 will be referred to as a first oil seal 5, a first pump impeller 6, and a first bearing waterproof assembly 1 in sequence, and each of the components sequentially arranged on the right side of the bearing 3 will be referred to as a second oil seal 8, a second pump impeller 9, and a second bearing waterproof assembly 7 in sequence.

In view of the fact that the first bearing waterproof assembly 1 and the second bearing waterproof assembly 7 are identical in structure, the first oil seal 5 and the second oil seal 8 are identical in structure, and the first pump impeller 6 and the second pump impeller 9 are identical in structure, but are symmetrically arranged with respect to the bearing 3 in terms of installation, the description and drawings therefore only give the structures of the first bearing waterproof assembly 1, the first oil seal 5 and the first pump impeller 6.

The structure of the first bearing waterproof assembly 1 may refer to the description of the first embodiment, and the first bearing waterproof assembly is sleeved on the bearing seat 2 via the mounting ring 101, so that the first bearing waterproof assembly is convenient to install, and the specific structure and the specific mounting manner of the first bearing waterproof assembly may refer to the description of the first embodiment. The structure of the first oil seal 5 may refer to the existing structure, or may refer to the structures in fig. 16 and 17, and will not be described in detail herein.

Fig. 14, 15, 18 and 19 show the structure of the first pump impeller 6, which is annular in shape, and can be sleeved on the shaft body 4 by a press-fit process to be in interference connection with the shaft body 4, in addition, the first pump impeller 6 can be mounted on the shaft body 4 by a screw connection and a clamping connection manner, or can be fixedly arranged on the shaft body 4 by an external member such as a pin.

As a preferred embodiment, one side of the first pump impeller 6 facing away from the first bearing waterproof assembly 1 is planar, one side of the first pump impeller 6 facing toward the first bearing waterproof assembly 1 is provided with a plurality of convex waterproof teeth 601, the middle parts of the plurality of waterproof teeth 601 protrude to the same side surrounding the circumference of the first pump impeller 6 to form a mechanism similar to a one-way gear, and the plurality of waterproof teeth 601 are distributed at intervals surrounding the circumference of the first pump impeller 6.

In application, the vehicle mainly moves forward, so the rotation directions of the waterproof teeth 601 of the first pump wheel 6 and the second pump wheel 9 are all rotation directions which are convenient for driving the drainage pump wheel to drain water when the vehicle moves forward. Due to the arrangement of the first oil seal 5 and the second oil seal 8, even if water drops enter between the pump wheel and the oil seal due to the reasons of reversing and splashing of the vehicle, the water drops cannot enter the bearing 3 due to the obstruction of the oil seal; and when the vehicle advances, due to the nearly airtight space formed among the pump impeller, the oil seal and the bearing seat 2, water in the space is discharged from the gap between the bearing waterproof assembly and the shaft body 4 when the pump impeller rotates, and the drainage path e can refer to the diagram shown in fig. 7, so that the bearing 3 is prevented from being polluted due to long-time aggregation of water drops.

Referring to fig. 7, it should be noted that the first protrusion 2031 of the bearing waterproofing assembly should be disposed corresponding to the inner hole wall of the bearing housing 2 such that the sidewall of the first protrusion 2031 can cover the tooth area of the drainage impeller so that water is concentrated and discharged to the outside by the pushing of the impeller to the water, and at this time, the water is discharged to the outside of the bearing housing along the water-throwing path, i.e., the aforementioned drainage path e is formed.

In the actual assembly of the bearing assembly of this embodiment, referring to the structural assembly shown in fig. 7, the bearing 3 may be press-fitted in the bearing seat 2 first, it is required to ensure that the bearing outer ring is in interference fit with the bearing seat 2, then the second clamp spring 11, the second oil seal 8 and the second bearing waterproof assembly 7 are assembled, it is required to ensure that the second clamp spring 11 is clamped in the second clamping groove 402, and it cooperates with the aforementioned shoulder 201 to limit the axial installation position of the bearing 3 outer ring, and the rotation of the bearing 3 is not affected, the second oil seal 8 is clamped in the corresponding installation groove on the bearing seat 2, and the main lip of the second oil seal 8 faces to the right side.

The second pump wheel 9 can be installed on the shaft body 4, the shaft body 4 assembled with the second pump wheel 9 is inserted into the inner ring of the bearing 3, the first clamping spring 10, the first oil seal 5, the first pump wheel 6 and the first bearing waterproof assembly 1 are assembled, the first clamping spring 10 is required to be clamped in the first clamping groove 202 and matched with the shaft shoulder 401, the axial installation position of the inner ring of the bearing 3 is limited, the rotation of the bearing 3 is not affected, the first oil seal 5 is clamped in the corresponding installation groove on the bearing seat 2, and the main lip of the first oil seal 5 faces to the left side. Thus, the assembly of the bearing assembly is completed, and the disassembly process is reversely operated.

After the assembly is completed, the first bearing waterproof assembly 1, the second bearing waterproof assembly 7, the first oil seal 5, the second oil seal 8 and the second clamp spring 11 are fixedly arranged on the bearing seat 2, and the first pump wheel 6, the second pump wheel 9 and the first clamp spring 10 are assembled on the shaft body 4 and rotate along with the shaft body 4.

Finally, it should be noted that in this embodiment, the oil seals, the pump impeller and the bearing waterproof assembly are disposed on two sides of the bearing 3, the oil seals have better effects of preventing the lubricant from leaking, the pump impeller and the bearing waterproof assembly have better effects of preventing water from entering the bearing 3, and in addition, only one or two of the oil seals, the pump impeller and the bearing waterproof assembly may be disposed, which may only result in poor effects of preventing water from entering and preventing oil from leaking.

The bearing assembly of this embodiment through using foretell bearing waterproofing membrane, and waterproof ring 102 keeps off the one end of putting at bearing frame 2, can play better waterproof effect to can be better prevent that bearing 3 from rust, owing to be equipped with first concave part 1021 on the outer terminal surface, when practical application, the lateral wall of accessible first concave part 1021 is got rid of bearing waterproofing membrane with rivers, thereby can further play better water-proof effects, and then effectively protect bearing 3, extension bearing assembly's life.

In addition, the bearing assembly of this embodiment through setting up water throwing cup, drainage pump impeller and oil blanket, can form the waterproof construction that water throwing is main, drainage is vice, and external water is very big restriction gets into inside the bearing 3, promotes whole car wading ability, and this simple structure is easy processing simultaneously, and the cost of manufacture is lower.

The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the invention.

Claims

1. A waterproof bearing assembly, characterized in that:

comprises a mounting ring (101) and a waterproof ring (102) which are connected together;

the mounting ring (101) is used for mounting the bearing waterproof assembly on the bearing seat (2);

the waterproof ring (102) is used for being blocked at one end of the bearing seat (2);

The outer end face of the waterproof ring (102) is provided with a first concave part (1021) arranged along the circumferential direction of the waterproof ring (102), and the first concave part (1021) is positioned in the middle of the waterproof ring (102) along the radial direction of the waterproof ring (102);

The two sides of the first concave part (1021) are respectively provided with a first inclined plane and a second inclined plane, the first inclined plane extends to one side close to the mounting ring (101) and simultaneously inclines inwards, and the second inclined plane extends to one side far away from the mounting ring (101) and simultaneously inclines inwards.

2. The bearing waterproofing assembly according to claim 1, wherein:

Corresponding to the first concave part (1021), a first outer convex part (1022) which is arranged along the circumferential direction of the waterproof ring (102) is arranged on the inner end surface of the waterproof ring (102);

the first outer flange (1022) is disposed corresponding to an inner bore wall of the bearing housing (2).

3. The bearing waterproofing assembly according to claim 1 or 2, characterized in that:

The outer side of the waterproof ring (102) is provided with a second outer convex part (1023) circumferentially arranged along the waterproof ring (102);

-the second male part (1023) is arranged close to the mounting ring (101) with respect to the first female part (1021);

The outer end face of the waterproof ring (102) comprises a third inclined surface, the outer edge of the third inclined surface is connected with the mounting ring (101), the third inclined surface extends to one side far away from the mounting ring (101) and simultaneously inclines inwards, and the third inclined surface and the first inclined surface are arranged on two sides of the second outer protruding portion (1023).

4. A bearing waterproofing assembly according to claim 3 wherein:

Corresponding to the second outer convex portion (1023), the inner end surface of the waterproof ring (102) has a second concave portion (1024) arranged along the circumference of the waterproof ring (102).

5.A bearing assembly, characterized in that:

Comprises a bearing seat (2), a bearing (3) assembled in an inner hole of the bearing seat (2), and a shaft body (4) penetrating through an inner ring of the bearing (3);

At least one end of the bearing seat (2) is provided with the bearing waterproof assembly according to any one of claims 1 to 4;

A gap is arranged between the waterproof ring (102) and the shaft body (4).

6. The bearing assembly of claim 5, wherein:

The mounting ring (101) is sleeved on the bearing seat (2).

7. The bearing assembly of claim 5, wherein:

A first fixing part for fixing the bearing (3) is arranged on the wall of the inner hole;

The first fixing part comprises a retaining shoulder (201); or alternatively, the first and second heat exchangers may be,

The first fixing part comprises a first clamping groove (202) formed in the wall of the inner hole and a first clamping spring (10) embedded in the first clamping groove (202).

8. The bearing assembly of claim 5, wherein:

at least one end of the bearing (3) is provided with an oil seal,

The oil seal is assembled in an inner hole of the bearing seat (2) and sleeved on the shaft body (4).

9. The bearing assembly of claim 8, wherein:

A pump wheel is arranged on one side of the oil seal, which is far away from the bearing (3);

the pump impeller is positioned in the inner hole and sleeved on the shaft body (4).

10. The bearing assembly of claim 5, wherein:

the shaft body (4) is provided with a second fixing part for fixing the bearing (3),

The second fixing part comprises a shaft shoulder (401), or,

The second fixing part comprises a second clamping groove (402) formed in the shaft body (4), and a second clamping spring (11) embedded in the second clamping groove (402).