CN217463216U - Heavy truck hub sealing element - Google Patents

Abstract

The utility model discloses a heavy truck hub sealing element, which relates to the technical field of sealing elements and comprises an outer oil seal, a shaft sleeve and a limiting framework, wherein the outer oil seal comprises an outer framework, an outer cladding and a spring, the outer cladding is fixedly connected to the outer surface of the outer framework, and one side of the spring is provided with a main lip; the shaft sleeve comprises an inner framework, the outer surface of the inner framework is fixedly connected with an inner cladding, and the limiting framework is fixedly installed with the inner framework through riveting; the main lip includes fourth dustproof lip and third dustproof lip, the fourth dustproof lip with the third dustproof lip all with the inner wall interference fit of inner frame. The utility model discloses it is rational in infrastructure, have better muddy water of preventing and get into the effect, the leakproofness is good, compares in traditional design, has resistant axial float, beats well, and multichannel sealing lip maze integrated design provides outstanding muddy water resistant ability, through special lip type design, possess lower torsion, has improved life and mileage of traveling.

Description

Heavy truck hub sealing element

Technical Field

The utility model relates to a sealing member technical field, in particular to heavily block wheel hub sealing member.

Background

Heavy trucks are the common vehicles in transportation, each axle of the heavy truck is provided with a hub, a sealing element is an indispensable component of the heavy truck hub, the sealing element is used for isolating a component needing lubrication from a power output component, and the hub sealing element is generally made of rubber.

Current heavy truck axle wheel hub sealing member, axial and radial drunkenness back, sealed effect can worsen, leads to muddy water to dissolve and gets into in the sealing member, influences the sealing member and seals the effect to current sealing member intensity is general, uses for a long time and causes the wearing and tearing of sealing member easily, consequently, this application provides a heavy truck wheel hub sealing member and satisfies the demand.

SUMMERY OF THE UTILITY MODEL

An object of the application is to provide a heavily block wheel hub sealing member, better muddy water entering effect of preventing has, the leakproofness is good, compare in traditional design, have resistant axial float, it is good to beat, the labyrinth combination design of multichannel sealing lip provides outstanding muddy water resistance, through special lip type design, possess lower torsion, the bearing is used for spacing the sealing member, it is spacing relatively traditional inside, frictional force has been reduceed, reduce the temperature and rise, life and mileage of traveling have been improved.

In order to achieve the above purpose, the present application provides the following technical solutions: a heavy truck hub sealing element comprises an outer oil seal, a shaft sleeve and a limiting framework, wherein the outer oil seal comprises an outer framework, an outer cladding and a spring, the outer cladding is fixedly connected to the outer surface of the outer framework, and a main lip is arranged on one side of the spring; the shaft sleeve comprises an inner framework, the outer surface of the inner framework is fixedly connected with an inner cladding, and the limiting framework is fixedly installed with the inner framework through riveting; the main lip comprises a fourth dust lip and a third dust lip, the fourth dust lip and the third dust lip are in interference fit with the inner wall of the inner framework, and one end of the outer framework is clamped on the main lip; the inner cladding comprises a second dustproof lip and a first dustproof lip, and the second dustproof lip and the first dustproof lip are in interference fit with the inner wall of the outer framework.

Preferably, the riveting device further comprises a shaft sleeve and a bearing, wherein a plurality of cross flanges are arranged on the inner wall of the shaft sleeve, the bearing is fixedly sleeved on the shaft, and the end face of the bearing is attached to one side of the riveting part (4).

Preferably, outer cladding is including setting up chamfer and first back chamfer at the first preceding at both ends respectively, the outer wall of outer cladding is first external diameter wave type setting, interior cladding includes chamfer and the preceding chamfer of second behind the second, the outer wall of interior cladding is second external diameter wave type setting.

Preferably, one side of the outer framework is provided with carved teeth.

Preferably, one side of the limiting framework is provided with a pressure relief hole.

To sum up, the utility model discloses a technological effect and advantage: the sealing piece has the advantages that large particles are prevented from entering the inside of the oil seal by arranging the first dustproof lip, muddy water is prevented from entering the inside of the oil seal by arranging the second dustproof lip, the muddy water prevention effect is further improved by arranging the third dustproof lip and the fourth dustproof lip, the service life of the oil seal is prolonged, the second dustproof lip and the third dustproof lip provide axial movement resistance and jumping resistance, the muddy water prevention effect is improved, the fourth dustproof lip can ensure dust prevention and muddy water prevention under the movement, the sealing piece has a good muddy water entering prevention effect and good sealing performance, compared with the traditional design, the sealing piece has axial movement resistance and excellent jumping resistance, and a multi-sealing lip labyrinth combination design provides excellent muddy water resistance and has lower torsion by a special lip type design; the bearing is used for carrying on spacingly to the sealing member, and is traditional inside spacing relatively, and the spacing mode of this application has reduceed frictional force, reduces the temperature and rises, has improved life and mileage of traveling.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative efforts.

FIG. 1 is a first front view schematic view of a heavy truck hub seal in section;

FIG. 2 is a second front view schematic of the heavy truck hub seal in section;

FIG. 3 is a schematic view of a heavy truck hub seal and bearing engagement configuration.

In the figure: 1. an outer skeleton; 2. an inner skeleton; 3. a limiting framework; 4. riveting; 5. a main lip; 6. a spring; 7. inner coating; 8. a cross flange; 9. a fourth dust lip; 10. a third dust prevention lip; 11. a second dust lip; 12. a first dust lip; 13. coating outside; 14. slowly pressing the hole; 15. a first front chamfer; 16. a first outer diameter wave pattern; 17. a first rear chamfer; 18. tooth engraving; 19. a second rear chamfer; 20. a second outer diameter wave pattern; 21. a second front chamfer; 22. and (5) a bearing.

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.

Example (b): referring to fig. 1-3, the heavy truck hub sealing element comprises an outer oil seal, a shaft sleeve and a limiting framework 3, wherein the outer oil seal comprises an outer framework 1, an outer cladding 13 and a spring 6, the outer framework 1 is made of carbon steel and has good structural strength, the outer cladding 13 is fixedly connected to the outer surface of the outer framework 1, the outer cladding 13 is bonded with the outer framework 1 through adhesive hot vulcanization, the outer cladding 13 is made of fluororubber, a main lip 5 is arranged on one side of the spring 6, and a certain radial force is provided for the main lip 5 through the spring 6 to increase the sealing performance;

the shaft sleeve comprises an inner framework 2, an inner cladding 7 is fixedly connected to the outer surface of the inner framework 2, the inner cladding 7 is bonded with the inner framework 2 through adhesive hot vulcanization, the inner cladding 7 is hydrogenated nitrile rubber, the limiting framework 3 is fixedly installed with the inner framework 2 through riveting 4, and the inner framework 2 is made of high-carbon steel and has good structural strength;

the main lip 5 comprises a fourth dust lip 9 and a third dust lip 10, the fourth dust lip 9 and the third dust lip 10 are in interference fit with the inner wall of the inner framework 2, and one end of the outer framework 1 is clamped on the main lip 5; the inner cladding 7 comprises a second dust lip 11 and a first dust lip 12, the second dust lip 11 and the first dust lip 12 are in interference fit with the inner wall of the outer framework 1, large particles are prevented from entering the inside of the oil seal by arranging the first dust lip 12, muddy water is prevented from entering the inside of the oil seal by arranging the second dust lip 11, the muddy water is further prevented from entering the inside of the oil seal by arranging a third dust lip 10 and a fourth dust lip 9, the muddy water prevention effect is further improved, the service life of the oil seal is prolonged, the axial movement resistance and the jumping resistance are provided by the second dust lip 11 and the third dust lip 10, the muddy water prevention effect is improved, the dustproof and muddy water prevention under the movement can be ensured by the fourth dust lip 9, the sealing piece has a good muddy water prevention effect, the sealing performance is good, compared with the traditional design, the axial movement resistance is realized, the jumping resistance is excellent, the labyrinth combination design of a plurality of sealing lips is provided, and the excellent muddy water resistance is provided, by means of the special lip-shaped design, the torsion is lower.

In this embodiment, still include axle sleeve and bearing 22, be provided with a plurality of cross flanges 8 on the inner wall of axle sleeve, bearing 22 is fixed to be cup jointed epaxial, and bearing 22's terminal surface and one side of riveting 4 laminate mutually, and the benefit that sets up like this avoids sliding relatively with the axle, and bearing 22 is used for spacing the sealing member, and traditional inside is spacing relatively, and the spacing mode of this application has reduced frictional force, reduces the temperature and rises, has improved life and mileage of traveling.

In this embodiment, outer cladding 13 includes first preceding chamfer 15 and the first back chamfer 17 that sets up respectively at both ends, and the outer wall of outer cladding 13 sets up for first external diameter wave 16, and interior cladding 7 includes chamfer 19 and the preceding chamfer 21 of second after the second, and the outer wall of interior cladding 7 sets up for second external diameter wave 20, and the benefit of setting up like this is, releases the deformation force in the rubber in the installation, the installation of being convenient for.

In the present embodiment, one side of the outer frame 1 is provided with a notch 18 for forming and positioning.

In this embodiment, one side of the limiting framework 3 is provided with a pressure relief hole 14, so that the oil pressure impact is reduced, and the lip is ensured to be lubricated.

This practical theory of operation:

through setting up first dust lip 12, prevent that the large granule from getting into inside the oil blanket, through setting up second dust lip 11, prevent that muddy water from getting into inside the oil blanket, through setting up third dust lip 10 and fourth dust lip 9, further increase the muddy water prevention effect, promote the oil blanket life-span, second dust lip 11 and third dust lip 10, axial resistant drunkenness and beating nature are provided, improve the muddy water prevention effect, fourth dust lip 9 can guarantee dustproof under the drunkenness, the muddy water prevention nature, the sealing member of this application, have better muddy water entering effect, the leakproofness is good, compare in traditional design, axial drunkenness resistance has, it is good to beat, the labyrinth combination design of multichannel seal lip, excellent muddy water resistance has been provided, through special lip type design, possess lower torsion.

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 (5)

1. A heavy truck hub seal characterized by: the oil seal comprises an outer oil seal, a shaft sleeve and a limiting framework (3), wherein the outer oil seal comprises an outer framework (1), an outer cladding (13) and a spring (6), the outer cladding (13) is fixedly connected to the outer surface of the outer framework (1), and a main lip (5) is arranged on one side of the spring (6);

the shaft sleeve comprises an inner framework (2), an inner cladding (7) is fixedly connected to the outer surface of the inner framework (2), and the limiting framework (3) is fixedly mounted with the inner framework (2) through a riveting joint (4);

the main lip (5) comprises a fourth dust lip (9) and a third dust lip (10), the fourth dust lip (9) and the third dust lip (10) are in interference fit with the inner wall of the inner framework (2), and one end of the outer framework (1) is clamped on the main lip (5); interior cladding (7) include second dust lip (11) and first dust lip (12), second dust lip (11) with first dust lip (12) all with the inner wall interference fit of exoskeleton (1).

2. A heavy truck hub seal as claimed in claim 1, wherein: the riveting device is characterized by further comprising a shaft sleeve and a bearing (22), wherein a plurality of cross flanges (8) are arranged on the inner wall of the shaft sleeve, the bearing (22) is fixedly sleeved on the shaft, and the end face of the bearing (22) is attached to one side of the riveting part (4).

3. A heavy truck hub seal as claimed in claim 1, wherein: outer cladding (13) are including setting up chamfer (15) and first back chamfer (17) before the first at both ends respectively, the outer wall of outer cladding (13) sets up for first external diameter wave type (16), chamfer (21) before interior cladding (7) include second back chamfer (19) and the second, the outer wall of interior cladding (7) sets up for second external diameter wave type (20).

4. A heavy truck hub seal as claimed in claim 1, wherein: one side of the outer framework (1) is provided with a carved tooth (18).

5. A heavy truck hub seal as claimed in claim 1, wherein: one side of the limiting framework (3) is provided with a pressure relief hole (14).

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