CN210440581U

CN210440581U - Anti-shifting axle hub oil seal capable of being disassembled and assembled repeatedly

Info

Publication number: CN210440581U
Application number: CN201921203522.6U
Authority: CN
Inventors: 潘人政; 黄周阳; 贾武强; 汤筱云
Original assignee: Kunshan Maoshun Sealing Products Industrial Co ltd
Current assignee: Kunshan Maoshun Sealing Products Industrial Co ltd
Priority date: 2019-07-29
Filing date: 2019-07-29
Publication date: 2020-05-01
Anticipated expiration: 2029-07-29

Abstract

The utility model discloses an axle wheel hub oil blanket that resistant drunkenness just can a lot of dismouting, including outer oil blanket, axle sleeve and spacing skeleton, spacing skeleton is close to the position riveting on right side with the axle sleeve and is connected, the top surface glue of outer oil blanket is connected with first rubber coating, first rubber coating is located the top of axle sleeve, and the left side bottom of first rubber coating is provided with first dustproof lip, the one end that first rubber coating was kept away from to outer oil blanket extends to the inboard of axle sleeve and is provided with the main seal lip. The utility model discloses, can prevent through first dust lip that the large granule from getting into inside the oil blanket, the second dust lip can prevent that muddy water from getting into inside the oil blanket, and the third dust lip increases the spring design, increases the muddy water prevention effect, and main seal lip can be sealed oil and prevent leaking, can guarantee the dustproof and muddy water prevention nature of oil blanket under the drunkenness through three dust lip to the life of oil blanket has been improved greatly.

Description

Anti-shifting axle hub oil seal capable of being disassembled and assembled repeatedly

Technical Field

The utility model relates to an oil blanket technical field especially relates to an axle wheel hub oil blanket that resistant drunkenness just can a lot of dismouting.

Background

The oil seal is a mechanical element for sealing oil, which isolates a part needing lubrication in a transmission part from a force-applying part so as not to allow the lubricating oil to leak, a static seal and a dynamic seal (generally reciprocating motion) are called sealing parts, the representative form of the oil seal is a TC oil seal, the TC oil seal is a double-lip oil seal with a self-tightening spring completely coated by rubber, and the general oil seal is usually referred to as the TC framework oil seal.

In the existing axle hub oil seal, a plurality of oil seals are easy to have large-amplitude play when in use, and the dustproof and muddy water-proof effect of the oil seals is not ideal, so that the service life of the oil seals is seriously influenced for a long time.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the shortcoming that exists among the prior art, and the axle wheel hub oil blanket of resistant drunkenness and dismouting many times that proposes.

In order to achieve the above purpose, the utility model adopts the following technical scheme: an axle hub oil seal resistant to shifting and capable of being disassembled and assembled repeatedly comprises an outer oil seal, an axle sleeve and a limiting framework, wherein the limiting framework is connected with the position, close to the right side, of the axle sleeve in a riveting mode, the outer surface of the top of the outer oil seal is connected with a first rubber coating layer in a glue mode, the first rubber coating layer is located above the axle sleeve, a first dustproof lip is arranged at the bottom of the left side of the first rubber coating layer, one end, away from the first rubber coating layer, of the outer oil seal extends to the inner side of the axle sleeve and is provided with a main sealing lip, the main sealing lip is located at the inner bottom of the axle sleeve, a second spring is arranged on the upper surface of the main sealing lip, an oil return line is arranged on the lower surface of the main sealing lip, a third dustproof lip is arranged on the left side of the main sealing lip, a first spring is arranged on the upper surface of the third dustproof, lubricating grease is arranged between the shaft sleeve and the second dust lip and between the shaft sleeve and the third dust lip, and a second rubber coating layer is connected to the outer surface of the shaft sleeve in an adhesive mode.

As a further description of the above technical solution:

the first spring is located on the left side of the second spring, and spring grooves corresponding to the second spring and the first spring are formed in the upper surface of the main sealing lip and the upper surface of the third dust prevention lip respectively.

As a further description of the above technical solution:

the upper surface of the first rubber coating layer is provided with an outer convex ring, the lower surface of the second rubber coating layer is provided with an inner convex ring and a cross flange, and the cross flange is positioned on the left side of the inner convex ring.

As a further description of the above technical solution:

and chamfering treatment is carried out on the edges of two sides of the first rubber coating layer and the second rubber coating layer.

As a further description of the above technical solution:

the outer surface of the upper end part of the shaft sleeve, which is provided with a tooth carving surface, is subjected to spraying treatment, and the side wall of the limiting framework is provided with a pressure relief hole in a penetrating manner.

As a further description of the above technical solution:

the outer oil seal is made of carbon steel materials, the shaft sleeve and the limiting framework are made of high-strength carbon steel materials, the first rubber coating layer and the second rubber coating layer are made of fluororubber and hydrogenated nitrile butadiene rubber respectively, and the first spring and the second spring are made of stainless steel and carbon steel materials respectively.

The utility model discloses following beneficial effect has:

1. compared with the prior art, this resistant drunkenness and axle wheel hub oil blanket of dismouting many times can prevent through first dustproof lip that the large granule from getting into inside the oil blanket, and inside second dustproof lip can prevent muddy water entering oil blanket, and the third dustproof lip increases the spring design, increases the muddy water effect of preventing, and main seal lip can be sealed oil and prevent leaking, can guarantee through three dustproof lip that the oil blanket is dustproof and muddy water nature under the drunkenness to the life of oil blanket has been improved greatly.

2. Compared with the prior art, this resistant drunkenness and axle wheel hub oil blanket of dismouting many times, through spacing skeleton, the cooperation of outer oil blanket and axle sleeve, can guarantee the complete of box-shaped structure, dismouting many times, the outer bulge loop and the inner bulge loop that set up, the installation of the oil blanket of being convenient for, through the cross flange that sets up, can increase rotatory friction, avoid sliding with the axle, not only can lead the installation just through doing the chamfer processing, and can release the deformability of rubber in the installation, thereby make the drunkenness scope of oil blanket reduce greatly.

Drawings

Fig. 1 is the utility model provides an axle wheel hub oil blanket's that resistant drunkenness and dismouting many times overall structure schematic diagram.

Illustration of the drawings:

1. an outer oil seal; 2. a shaft sleeve; 3. a limiting framework; 4. a first rubber coating layer; 5. a second rubber coating layer; 6. a primary seal lip; 7. a first spring; 8. a second spring; 9. a first dust lip; 10. a second dust lip; 11. a third dust prevention lip; 12. an outer convex ring; 13. an inner collar; 14. carving tooth surfaces; 15. slowly pressing the hole; 16. a cross flange; 17. an oil return line; 18. and (4) lubricating grease.

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.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention; the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance, and furthermore, unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "connected" are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1, the utility model provides a pair of resistant drunkenness and axle wheel hub oil blanket that dismouting many times: the oil seal comprises an outer oil seal 1, an axle sleeve 2 and a limiting framework 3, the limiting framework 3 is connected with the axle sleeve 2 close to the right side in a riveting manner, a first rubber coating layer 4 is connected to the outer surface of the top of the outer oil seal 1 in a gluing manner, the first rubber coating layer 4 is positioned above the axle sleeve 2, a first dustproof lip 9 is arranged at the bottom of the left side of the first rubber coating layer 4, one end of the outer oil seal 1, far away from the first rubber coating layer 4, extends to the inner side of the axle sleeve 2 and is provided with a main sealing lip 6, the material hardness is increased below the main sealing lip 6, the vertical grinding process is adopted, the surface smoothness is improved, the abrasion is avoided, the service life is prolonged, the main sealing lip 6 is positioned at the inner bottom of the axle sleeve 2, a second spring 8 is arranged on the upper surface of the main sealing lip 6, an oil return line 17 is arranged on the lower surface, the left side of main seal lip 6 is provided with third dirt lip 11, and the upper surface of third dirt lip 11 is provided with first spring 7, and the lateral wall of outer oil blanket 1 and the position that is located the interior top of axle sleeve 2 are provided with second dirt lip 10, are provided with lubricating grease 18 between axle sleeve 2 and second dirt lip 10 and the third dirt lip 11, and the surface glue of axle sleeve 2 is connected with second rubber coating 5.

The first spring 7 is positioned on the left side of the second spring 8, spring grooves corresponding to the second spring 8 and the first spring 7 are respectively arranged on the upper surface of the main seal lip 6 and the upper surface of the third dust prevention lip 11, an outer convex ring 12 is arranged on the upper surface of the first rubber coating layer 4, an inner convex ring 13 and a cross flange 16 are arranged on the lower surface of the second rubber coating layer 5, the cross flange 16 is positioned on the left side of the inner convex ring 13, chamfering treatment is carried out on the edges of two sides of the first rubber coating layer 4 and the second rubber coating layer 5, spraying treatment is carried out on the outer surface of the tooth-carving surface 14 arranged at the upper end part of the shaft sleeve 2, PTFE is sprayed, the tooth-carving surface 14 is carried out, a pressure-relieving hole 15 is formed in the side wall of the limiting framework 3 in a penetrating manner, the outer oil seal 1 is made of carbon steel material, the shaft sleeve 2 and the limiting framework 3 are both made of high-strength carbon, the first spring 7 and the second spring 8 are made of stainless steel and carbon steel respectively.

The working principle is as follows: during the use, can prevent through first dust lip 9 that the large granule from getting into inside the oil blanket, second dust lip 10 can prevent that muddy water from getting into inside the oil blanket, third dust lip 11 increases the spring design, increase the muddy water prevention effect, promote the oil blanket life-span, main seal lip 6 can seal oil and prevent leakage, the slow pressure hole 15 of increase, reduce the oil pressure and strike, and guarantee that the lip is lubricated, the outer bulge loop 12 and the inner bulge loop 13 of setting, the installation of the oil blanket of being convenient for, through the cross flange 16 that sets up, can increase rotatory friction, avoid sliding with the axle, not only can lead just to the installation through doing the chamfer processing, and can release the deformability of rubber in the installation, through 14 spraying PTFE at the facing of carving teeth, reduce torsion, the temperature rise.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications and variations can be made in the embodiments or in part of the technical features of the embodiments without departing from the spirit and the scope of the invention.

Claims

1. The utility model provides an axle wheel hub oil blanket that resistant drunkenness and dismouting many times, includes outer oil blanket (1), axle sleeve (2) and spacing skeleton (3), its characterized in that: the limiting framework (3) is connected with the shaft sleeve (2) close to the right side in a riveting mode, a first rubber coating layer (4) is connected to the outer surface of the top of the outer oil seal (1) in a gluing mode, the first rubber coating layer (4) is located above the shaft sleeve (2), a first dustproof lip (9) is arranged at the bottom of the left side of the first rubber coating layer (4), one end, far away from the first rubber coating layer (4), of the outer oil seal (1) extends to the inner side of the shaft sleeve (2) and is provided with a main sealing lip (6), the main sealing lip (6) is located at the inner bottom of the shaft sleeve (2), a second spring (8) is arranged on the upper surface of the main sealing lip (6), an oil return line (17) is arranged on the lower surface of the main sealing lip (6), a third dustproof lip (11) is arranged on the left side of the main sealing lip (6), a first spring (7) is arranged on the upper surface of the, the outer side wall of the outer oil seal (1) is provided with a second dust lip (10) at the position of the top in the shaft sleeve (2), lubricating grease (18) is arranged between the shaft sleeve (2) and the second dust lip (10) and between the shaft sleeve and the third dust lip (11), and the outer surface of the shaft sleeve (2) is connected with a second rubber coating layer (5).

2. The anti-running axle hub oil seal capable of being disassembled and assembled repeatedly as claimed in claim 1, wherein: the first spring (7) is located on the left side of the second spring (8), and spring grooves corresponding to the second spring (8) and the first spring (7) are formed in the upper surface of the main sealing lip (6) and the upper surface of the third dust prevention lip (11) respectively.

3. The anti-running axle hub oil seal capable of being disassembled and assembled repeatedly as claimed in claim 1, wherein: an outer convex ring (12) is arranged on the upper surface of the first rubber coating layer (4), an inner convex ring (13) and a cross flange (16) are arranged on the lower surface of the second rubber coating layer (5), and the cross flange (16) is located on the left side of the inner convex ring (13).

4. The anti-running axle hub oil seal capable of being disassembled and assembled repeatedly as claimed in claim 1, wherein: and chamfering treatment is carried out on the edges of two sides of the first rubber coating layer (4) and the second rubber coating layer (5).

5. The anti-running axle hub oil seal capable of being disassembled and assembled repeatedly as claimed in claim 1, wherein: the outer surface of the upper end part of the shaft sleeve (2) provided with a tooth carving surface (14) is subjected to spraying treatment, the tooth carving surface (14) is formed, and the side wall of the limiting framework (3) penetrates through and is provided with a pressure relief hole (15).

6. The anti-running axle hub oil seal capable of being disassembled and assembled repeatedly as claimed in claim 1, wherein: outer oil blanket (1) are made for the carbon steel material, axle sleeve (2) and spacing skeleton (3) are high strength carbon steel material and make, first rubber coating (4) and second rubber coating (5) are made for fluororubber and hydrogenated nitrile rubber respectively, first spring (7) and second spring (8) are made for stainless steel and carbon steel material respectively.