Heavy truck hub seal cassette type

Heavy truck hub seal cassette type seal

Summary
The utility model relates to a sealing member, especially a Heavy truck hub seal cassette type. Includes an outer seal and an inner seal, outer seal is located within the outer seal, the outer seal includes an outer main seal lip seal skeleton and outer annular primary sealing lip is provided with a spring, was an interference fit between the outer and inner lip seal main seal , wherein said end face is provided with an outer seal lip and outer seal anchor vice, was interference fit between the outer lip seal and the secondary seal and the inner seal skeleton supporting point, the inside of the outer frame provided with an internal seal skeleton within the framework between the outer seal and was an interference fit with back hole on the inner frame with felt seal between the inner end surface of the seal and located within and outside the oil seal. Greatly improving the performance of the sealing of thin oil to meet the development needs of the current heavy truck hub structure.

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Claim (1)
A Heavy truck hub seal cassette type, including the inner and outer seal ⑴ seal (4), located within the outer seal ⑴ outer seal (4), the outer seal (I) comprises a main frame and the sealing lip, the main seal lip ring the outside was provided with an interference fit between the spring and outer seal lip and inner seal (4), characterized in that: the outer seal (I) is provided with an outer end face of the secondary seal lip seal and anchor ¢), the outer seal was between the secondary sealing lip and inner support points and seal skeleton interference fit, the outer seal (I) is provided in the inside of the frame skeleton (3), within the framework (3) between the outer seal (I) and was too an interference fit within the framework provided back to the hole (2) (3), the seal is provided between the inner end surface of the seal and located within the outer seal and felt (5).

Explanation

Heavy truck hub seal cassette type Valley

TECHNICAL FIELD

[0001] The invention relates to a seal, particularly a Heavy truck hub seal cassette type.

Background technique

[0002] Currently available domestic mature wheel hub less light oil seal oil seal, adaptability and stability are poor, especially poor dilute oil sealing effect, does not meet the requirements of the development of heavy truck wheels.

Utility Model Content

[0003] The utility model aims to overcome the above drawbacks of the prior hub seals exist, a new heavy truck cassette hub seal, greatly improving the performance of the sealing of thin oil to meet current development needs of the heavy truck hub structure.

[0004] The utility model adopts the following technical solutions: one heavy truck wheels cartridge seal, comprising an outer seal and an inner seal, outer seal is located outside of the inner seal and outer seal includes an outer seal skeleton and the main seal lip, the main outer annular sealing lip interference fit is provided between the spring form, the outer main seal and the inner seal lip, wherein said end face is provided with an outer seal lip and outer seal anchor vice, the outer seal and the secondary seal lip support point between the inner seal skeleton form an interference fit with the inside of the outer skeleton oil seal is provided between the inner skeleton, skeleton inside and outside the seal was an interference fit with back hole on the inner frame, the inner oil seal and is located between the inner end surface of the outer seal has a seal and blankets.

[0005] The utility model has the advantages that:

[0006] (I) the outer seal end face of the secondary seal lip and support points in favor of the inner and outer seal of each other, reducing the relative friction between the two, reduced seal temperature, but also to ensure the seal in a larger assembly after the power assembly, the inner and outer seal and will not be pushed death, can still make a smooth relative rotation;

[0007] (2) within the framework of the oil could slow the oil seal lip direct impact pressure, vent hole in the skeleton can timely discharge excess fluid not only reduces the pressure and temperature, but also make lip get good lubrication;

[0008] (3) the dust lip and outer seal end face felt fit together to improve the performance of the oil seal and dust.

[0009] In summary, the performance of the thin oil seal oil seal greatly improved to meet the current needs of the development of heavy truck hub structure.

Brief Description

[0010] FIG. 1 is a schematic view of the structure of the utility model.

[0011] FIG: 1 outer seal; 2 back to the hole; 3 inner skeleton; 4 inner seal; 5 blankets; 6 anchor.

detailed description of Heavy truck hub seal

[0012] the following with reference to the utility model for further instructions.

[0013] shown in Figure 1, the heavy truck hub seal cartridge includes an outer seal and an inner seal 4 I, I outer seal is located outside the inner seal 4. I outer seal including a skeleton and a main seal lip, outer annular primary seal lip provided with a spring under tension of the spring, the outer main seal lip and inner interference fit between the seal was 4. I end surface of the outer seal is provided with the secondary seal lip and the support points 6, was an interference fit between the secondary sealing lip and inner support points and seal skeleton, it is conducive to mutual cooperation within and outside the oil seal, reducing the relative friction between the two reduce temperature seals, but also to ensure that the seal assembly after a large force assembled inside and outside the seal will not be pushed death, still do relatively smooth rotation.

[0014] I seal the inside of the outer frame 3 is provided within the framework, within the framework 3 and the outer seal was an interference fit between the I, within the framework 3 is provided back to the hole 2, can slow the increase in the framework of the oil direct impact pressure seal lip, vent hole can promptly discharge excess fluid not only reduces the pressure and temperature, but also make the lip to give good lubrication. End surface of the inner seal and located between the inner and outer seal has a seal 5 blankets, blankets dust lip 5 and the outer end surface of the seal fit together to improve the performance of the oil seal and dust.