CN216843102U

CN216843102U - Wheel hub prevents muddy water sealing device

Info

Publication number: CN216843102U
Application number: CN202220035024.0U
Authority: CN
Inventors: 宋振德; 刘勇
Original assignee: LONGKOU FLYING WHEEL CAR ACCESSORIES CO Ltd
Current assignee: LONGKOU FLYING WHEEL CAR ACCESSORIES CO Ltd
Priority date: 2022-01-07
Filing date: 2022-01-07
Publication date: 2022-06-28
Anticipated expiration: 2032-01-07

Abstract

The utility model belongs to the technical field of vehicle hub end sealing, in particular to a hub mud-proof sealing device, which comprises an oil seal and a mud guard, wherein the oil seal comprises a shell A, a shell B, a shell C, a spring, a rubber gasket and lubricating grease; the mud guard plate comprises a bottom plate, an outer ring side plate and an inner ring side plate. By designing the hub oil seal into a combined oil seal, a mud guard is additionally arranged outside the oil seal on the basis of the original sealing structure; the oil seal is provided with a first auxiliary sealing lip and a second auxiliary sealing lip; a rubber gasket is arranged between the shell B and the shell C, and a protrusion is arranged on the inner side of the shell C and corresponds to the position of the rubber gasket, so that the rubber gasket is extruded between the shell B and the shell C. When the vehicle works under the adverse condition, the muddy water at the wheel end can be effectively prevented from directly invading the oil seal, the muddy water is prevented from entering the oil seal, and the protective capability of the wheel hub to the muddy water is effectively enhanced.

Description

Wheel hub prevents muddy water sealing device

Technical Field

The utility model belongs to the technical field of wheel hub end is sealed, a muddy water sealing device is prevented to wheel hub.

Background

The distance between the vehicle hub end and the ground is small in the running process, so that the vehicle hub end is very easy to be attacked by muddy water and the like, and the vehicle hub end enters the inside of the hub from the oil seal to influence the service life of parts such as a hub bearing and the like, and therefore the protection of the hub oil seal part is enhanced.

Although some hub muddy water prevention devices exist at present, the devices only carry out simple combined design on a hub oil seal and cannot achieve ideal muddy water prevention effect. However, in the use process of the vehicle, especially for a heavy truck, the application scene condition is severe, and the amount of muddy water in the environment is large, and the use requirement of the vehicle cannot be met only by simply designing the hub oil seal.

In addition, in the existing wheel hub oil seal design, all parts in the oil seal are in hard contact, and the application scene of a vehicle, particularly a heavy truck vehicle is obviously not considered, because the heavy truck vehicle generally has a large load capacity, the road surface in the application scene is basically a non-paved road surface, a lot of sunk road surfaces are available, the oil seal designed in hard contact has a short service life obviously, and the design of hard contact is easy to generate gaps when used in a severe environment, so that the use effect of the oil seal is influenced.

In view of the above, there is an urgent need to design a mud-proof sealing device for a hub, which can enhance the mud-proof capability of the hub of an automobile (especially a heavy truck trailer) by comprehensively utilizing various means.

SUMMERY OF THE UTILITY MODEL

To the problem that exists in the middle of the prior art, the utility model provides a wheel hub prevents muddy water seal structure, including the oil blanket with keep off the mud dish, can effectively strengthen the protection to the wheel hub unit, prevent the invasion and attack of muddy water etc..

In order to achieve the purpose, the utility model is realized by the following technical scheme:

a hub mud-proof sealing device is applied to a hub end of a heavy truck trailer axle and comprises an oil seal and a mud guard, wherein,

the oil seal comprises a shell A, a shell B, a shell C, a spring, a rubber gasket and lubricating grease; the mud guard plate comprises a bottom plate, an outer ring side plate and an inner ring side plate.

Furthermore, the excircle of the oil seal is matched with the inner hole of the hub, the inner hole of the oil seal is matched with the excircle of the axle, and the inner side of the oil seal is positioned on the end face of the bearing; the mud guard is arranged on the outer side of the oil seal.

Further, the bottom plate is annular, the outer ring curb plate is vertical to be set up in the outer ring limit of bottom plate and to the slope of the bottom plate outside, the inner ring curb plate sets up perpendicularly in the inner ring limit of bottom plate, outer ring curb plate inner ring curb plate wholly make the mud blocking dish be annular groove-shaped structure.

Further, the shell A comprises a metal framework and a rubber body which are vulcanized and combined into a whole;

the metal framework is in an L-shaped structure formed by vertically connecting the second bottom plate and the fourth side plate; the whole parcel of the rubber body is in metal framework's the outside to upwards extend along the terminal vertical direction of second bottom plate and form main seal lip, the main seal lip bottom outside is provided with first vice seal lip, be provided with the vice seal lip of second on the rubber body outside corresponding to second bottom plate position department, the rubber body has constituted the excircle part of oil blanket corresponding to the part of fourth curb plate.

Further, one side, facing the fourth side plate, of the main sealing lip is provided with an arc groove, and the spring is arranged in the arc groove.

Furthermore, a position of the outer side of the rubber body, which corresponds to the fourth side plate, is provided with a wave stripe.

Further, the B shell comprises a first bottom plate, a first top plate, a first side plate and a connecting plate;

the first side plate and the connecting plate are respectively and vertically arranged on two side edges of the lower surface of the first top plate, the other end of the connecting plate is vertically connected with a first bottom plate, and the first bottom plate extends along the direction parallel to the first top plate to the direction away from the first side plate.

Further, be provided with the concave part on the connecting plate back, the shape and the main seal lip of concave part are to the adaptation, make main seal lip block in the concave part, first vice seal lip block is supported on the connecting plate, the vice seal lip block of second is supported on first bottom plate, form first sealing between main seal lip and the first vice seal lip, form the second sealing between first vice seal lip and the vice seal lip of second, all pack in first sealing and the second sealing and have lubricating grease.

Further, the C shell comprises a second top plate, a second side plate and a third side plate, wherein the second side plate and the third side plate are respectively and vertically arranged on two side edges of the lower surface of the second top plate, and the whole C shell is of an annular groove-shaped structure.

Further, be provided with the rubber gasket between the first roof of B shell and the second roof of C shell, the inboard position department corresponding to the rubber gasket of second roof of C shell is provided with protrudingly, extrudees the rubber gasket between B shell and C shell.

Compared with the prior art, the utility model, its useful part lies in:

(1) on the basis of original seal structure, increased the fender mud dish in the outside of oil blanket, can effectively block that wheel end muddy water directly causes the invasion and attack to the oil blanket, prevent that muddy water from entering into inside the oil blanket.

(2) The utility model discloses a set up the vice seal lip of first pair seal lip and second on the oil blanket, can effectively prevent the entering of muddy water.

(3) The utility model provides a be provided with the rubber gasket between B shell and the C shell, be provided with simultaneously in the inboard position department corresponding to the rubber gasket of C shell protrudingly, extrude the rubber gasket between B shell and C shell, increased the buffer power between B shell and the C shell.

Drawings

FIG. 1 is a cross-sectional view of an embodiment of the present invention;

fig. 2 is a three-dimensional view of the oil seal 1 provided by the present invention;

fig. 3 is a three-dimensional view of the mud guard 2 provided by the present invention;

fig. 4 is a sectional view of the oil seal 1 of the present invention;

wherein, 1, oil sealing; 2, a mud guard; 3, a vehicle axle; 4, a bearing; 5, a hub; 1-1A shell; 1-2B shell; 1-3C shell; 1-4 springs; 1-5 rubber gaskets; 1-6 of lubricating grease; 1-7 protrusions; 1-1-1 rubber body; 1-1-2 metal skeleton; 1-1-3 first secondary sealing lips; 1-1-4 second secondary sealing lips; 1-1-5 primary seal lips; 1-3-1 round hole; 2-1 outer ring side plate; 2-2 inner ring side plate.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. In the following description, specific details are provided, such as specific configurations and components, merely to facilitate a thorough understanding of embodiments of the invention. Thus, it will be apparent to those skilled in the art that various changes and modifications may be made to the embodiments described herein without departing from the scope and spirit of the invention. In addition, descriptions of well-known functions and constructions are omitted in the embodiments for the sake of clarity and conciseness.

It should be appreciated that reference throughout this specification to "one embodiment" or "the present embodiment" means that a particular feature, structure or characteristic described in connection with the embodiment is included in at least one embodiment of the present invention. Thus, the appearances of the phrase "one embodiment" or "the present embodiment" in various places throughout this specification are not necessarily all referring to the same embodiment. Furthermore, the particular features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.

To the utility model discloses an oil blanket structure is front axle waterproof oil blanket, is applicable to the occasion that protects to hub oil blanket unit, to conventional oil blanket structure the utility model discloses no longer detailed description.

Example 1

With reference to fig. 1, a muddy water sealing device is prevented to wheel hub, sealing device is applied to heavily block trailer axle wheel hub end, the device includes oil blanket 1 and fender mud dish 2, oil blanket 1 all is the annular with fender mud dish 2 is whole.

In the using process, the excircle of the oil seal 1 is matched with the inner hole of the hub 5, the inner hole of the oil seal 1 is matched with the excircle of the axle 3, and the inner side of the oil seal 1 is positioned on the end surface of the bearing 4; the mud guard 2 is arranged on the outer side of the oil seal 1, and the mud guard 2 can effectively prevent muddy water at the wheel end from directly invading the oil seal and preventing the muddy water from entering the oil seal.

It should be noted that the positional relationship among the axle 3, the bearing 4 and the hub 5 at the hub end of the axle of the heavy truck is common knowledge in the art, and the present invention is not repeated herein.

Example 2

In addition to embodiment 1, the present embodiment further defines the structure of the fender 2, and is specifically as follows.

Referring to fig. 3, the mud guard 2 includes a bottom plate, an outer ring side plate 2-1 and an inner ring side plate 2-2, the bottom plate is annular, the outer ring side plate 2-1 is vertically arranged on the outer ring side of the bottom plate and inclines towards the outer side of the bottom plate, the inner ring side plate 2-2 is vertically arranged on the inner ring side of the bottom plate, and the bottom plate, the outer ring side plate 2-1 and the inner ring side plate 2-2 integrally make the mud guard 2 in an annular groove-shaped structure.

Preferably, the mud guard 2 is made of nylon materials.

Preferably, a plurality of round holes are arranged on the bottom plate.

When the automobile wheel hub is used, the inner ring side plate 2-2 is attached to the outer circle of the axle 3, the outer ring side plate 2-1 is wrapped to the outer side of the wheel hub 5, the oil seal 1 is integrally wrapped in a groove-shaped structure between the outer ring side plate 2-1 and the inner ring side plate 2-2, and therefore the oil seal is isolated from muddy water.

Example 3

The present embodiment further defines the structure of the oil seal 1 on the basis of embodiments 1 to 2, and is specifically as follows.

Referring to fig. 2 and 4, the oil seal 1 comprises a shell A1-1, a shell B1-2, a shell C1-3, a spring 1-4, a rubber gasket 1-5 and grease 1-6.

The A shell 1-1 comprises a metal framework 1-1-2 and a rubber body 1-1-1 which are vulcanized and combined into a whole.

The metal framework 1-1-2 is an L-shaped structure formed by vertically connecting a second bottom plate and a fourth side plate; the rubber body 1-1-1 is integrally wrapped on the outer side of the metal framework 1-1-2 and extends upwards to form a main sealing lip 1-1-5 along the vertical direction of the tail end of the second bottom plate, a first auxiliary sealing lip 1-1-3 is arranged on the outer side of the bottom of the main sealing lip 1-1-5, a second auxiliary sealing lip 1-1-4 is arranged on the outer side of the rubber body 1-1-1 corresponding to the position of the second bottom plate, and the part of the rubber body 1-1-1 corresponding to the fourth side plate forms the outer circle part of the oil seal 1.

Furthermore, an arc groove is formed in one side, facing the fourth side plate, of the main sealing lip 1-1-5, and the spring 1-4 is arranged in the arc groove.

Preferably, the position of the outer side of the rubber body 1-1-1 corresponding to the fourth side plate is provided with a wavy stripe to increase friction force and ensure sealing performance.

The B shell 1-2 comprises a first bottom plate, a first top plate, a first side plate and a connecting plate, wherein the first side plate and the connecting plate are respectively and vertically arranged on two side edges of the lower surface of the first top plate, the other end of the connecting plate is vertically connected with the first bottom plate, and the first bottom plate extends along the direction parallel to the first top plate to the direction away from the first side plate.

The back of the connecting plate is provided with a concave part, the shape of the concave part is matched with the direction of 1-1-5 of the main sealing lip, so that the main sealing lip 1-1-5 is clamped in the concave part, the first auxiliary sealing lip 1-1-3 is clamped on the connecting plate, the second auxiliary sealing lip 1-1-4 is clamped on the first base plate, a first sealing part is formed between the main sealing lip 1-1-5 and the first auxiliary sealing lip 1-1-3, a second sealing part is formed between the first auxiliary sealing lip 1-1-3 and the second auxiliary sealing lip 1-1-4, and lubricating grease 1-6 is filled in the first sealing part and the second sealing part.

Further, the length of first curb plate slightly is less than the connecting plate to it can extend to 1 inboardly of oil blanket to guarantee the inner ring limit 2-2 of fender mud dish 2, so that 2 better parcel oil blanket 1 of fender mud dish.

The C shell 1-3 comprises a second top plate, a second side plate and a third side plate, wherein the second side plate and the third side plate are respectively and vertically arranged on two side edges of the lower surface of the second top plate, and the whole C shell is of an annular groove-shaped structure.

The inner surface of the third side plate is connected with the outer surface of the first side plate of the shell B1-2 in a riveting mode, and the second side plate is located on the inner side of the fourth side plate.

And a rubber gasket 1-5 is arranged between the first top plate of the shell B1-2 and the second top plate of the shell C1-3 to increase the buffer force and ensure the sealing property.

Preferably, the inner side of the second top plate of the C-shell 1-3 corresponding to the rubber gasket 1-5 is provided with a protrusion 1-7 to position the rubber gasket 1-5 to avoid displacement of the rubber gasket.

Preferably, the shell B1-2 and the shell C1-3 are both made of metal materials.

Preferably, a second top plate of the C shell 1-3 is provided with a plurality of round holes 1-3-1.

It is specifically intended that relational terms such as first and second, and the like, in the present invention, are 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.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.

Claims

1. A hub mud-proof sealing device is characterized in that the sealing device is applied to a hub end of a heavy truck trailer axle and comprises an oil seal (1) and a mud guard (2), wherein,

the oil seal (1) comprises a shell A (1-1), a shell B (1-2), a shell C (1-3), a spring (1-4), a rubber gasket (1-5) and lubricating grease (1-6); the mud guard (2) comprises a bottom plate, an outer ring side plate (2-1) and an inner ring side plate (2-2).

2. A hub muddy water protection sealing device as claimed in claim 1, wherein the outer circle of said oil seal (1) is fitted with the inner hole of the hub (5), the inner hole of said oil seal (1) is fitted with the outer circle of the axle (3), and the inner side of said oil seal (1) is positioned on the end face of the bearing (4); and the mud blocking disc (2) is arranged on the outer side of the oil seal (1).

3. The hub mud-proof sealing device of claim 1, characterized in that the bottom plate is circular, the outer ring side plate (2-1) is vertically arranged on the outer ring edge of the bottom plate and inclines towards the outer side of the bottom plate, the inner ring side plate (2-2) is vertically arranged on the inner ring edge of the bottom plate, and the bottom plate, the outer ring side plate (2-1) and the inner ring side plate (2-2) integrally enable the mud guard (2) to be in an annular groove-shaped structure.

4. A hub muddy water prevention sealing device as claimed in claim 1, wherein said a case (1-1) comprises a metal skeleton (1-1-2) and a rubber body (1-1-1) which are vulcanized and integrated;

the metal framework (1-1-2) is in an L-shaped structure formed by vertically connecting a second bottom plate and a fourth side plate; the rubber body (1-1-1) is integrally wrapped on the outer side of the metal framework (1-1-2) and extends upwards to form a main sealing lip (1-1-5) along the vertical direction of the tail end of the second bottom plate, a first auxiliary sealing lip (1-1-3) is arranged on the outer side of the bottom of the main sealing lip (1-1-5), a second auxiliary sealing lip (1-1-4) is arranged on the outer side of the rubber body (1-1-1) corresponding to the position of the second bottom plate, and the part of the rubber body (1-1-1) corresponding to the fourth side plate forms the outer circle part of the oil seal (1).

5. A hub muddy water protection sealing arrangement as claimed in claim 4, characterized in that said primary sealing lips (1-1-5) are provided with an arc groove on the side facing the fourth side plate, said spring (1-4) being disposed in the arc groove.

6. A hub muddy water protection sealing device as claimed in claim 4, wherein the outside of said rubber body (1-1-1) is provided with wavy streaks at a position corresponding to the fourth side plate.

7. A hub muddy water protection sealing device as claimed in claim 4, wherein said B case (1-2) comprises a first bottom plate, a first top plate, a first side plate and a connecting plate;

the first side plate and the connecting plate are respectively and vertically arranged on two side edges of the lower surface of the first top plate, the other end of the connecting plate is vertically connected with a first bottom plate, and the first bottom plate extends towards the direction away from the first side plate along the direction parallel to the first top plate.

8. A hub mud-tight seal according to claim 7, wherein said web is provided with recesses on a back surface thereof, the shape of the concave part is matched with the direction of the main sealing lip (1-1-5), so that the main sealing lip (1-1-5) is clamped in the concave part, the first auxiliary sealing lip (1-1-3) is clamped on the connecting plate, the second auxiliary sealing lip (1-1-4) is clamped on the first bottom plate, a first sealing part is formed between the main sealing lip (1-1-5) and the first auxiliary sealing lip (1-1-3), a second sealing part is formed between the first auxiliary sealing lip (1-1-3) and the second auxiliary sealing lip (1-1-4), and lubricating grease (1-6) is filled in the first sealing part and the second sealing part.

9. A hub muddy water prevention sealing device as claimed in claim 7, wherein said C shell (1-3) comprises a second top plate, a second side plate and a third side plate, said second side plate and said third side plate are respectively vertically arranged on two sides of the lower surface of said second top plate, and are integrally formed into a ring groove-shaped structure.

10. A hub muddy water protection sealing device as claimed in claim 9, wherein a rubber gasket (1-5) is provided between a first top plate of said B-shell (1-2) and a second top plate of said C-shell (1-3), and a protrusion (1-7) is provided at a position corresponding to the rubber gasket (1-5) inside the second top plate of said C-shell (1-3) to press the rubber gasket (1-5) between the B-shell (1-2) and the C-shell (1-3).