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Spiral distributed multi-hole end face rotary sealing ring used on vehicle

A technology of rotating sealing ring and hole end face, which is applied in the direction of engine sealing, engine components, mechanical equipment, etc., which can solve the problems of overall failure of traditional devices and failure of rotating seal, so as to improve service performance and life, reduce friction and wear, Effect of reducing frictional torque and heat generation

Active Publication Date: 2014-04-23
BEIJING INSTITUTE OF TECHNOLOGYGY
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the actual use process, the failure of the rotary seal often leads to the overall failure of the traditional device

Method used

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  • Spiral distributed multi-hole end face rotary sealing ring used on vehicle
  • Spiral distributed multi-hole end face rotary sealing ring used on vehicle
  • Spiral distributed multi-hole end face rotary sealing ring used on vehicle

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Embodiment Construction

[0016] The present invention will be described in detail below with reference to the accompanying drawings and examples.

[0017] as attached figure 1 And attached figure 2 As shown, the present invention provides a rotary seal ring for vehicles with a helically distributed porous end face. The end face of the rotary seal ring 1 is evenly distributed along the circumferential direction with 15 helical regions, and each helical region is formed by the inner circle of the seal ring. Extending outward, micropores 2 are evenly distributed in each helical area, and the area formed between adjacent helical areas is a platform area.

[0018] Each microhole 2 is a circular hole with a radius of 0.2mm, the depth-to-diameter ratio of the microhole 2 is 0.008, and the overall area ratio of the microhole (the sum of the surface area of ​​the microholes on the end face of the sealing ring to the area ratio of the end face of the sealing ring) is 0.2.

[0019] The helix angle θ of each ...

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Abstract

The invention provides a spiral distributed multi-hole end face rotary sealing ring used on a vehicle and belongs to the technical field of sealing engineering of automobile transmission devices. 10-20 spiral areas are evenly distributed on the end face of the rotary sealing ring in the circumferential direction. Each spiral area is formed by extending of an inner circle of the sealing ring towards an outer circle of the sealing ring. Micropores are evenly distributed in each spiral area. Ratio of the superficial area of the micropores to the area of the end face of the sealing ring is 0.15-0.25. According to the spiral distributed multi-hole end face rotary sealing ring used on the vehicle, a structural design that the micropores are formed in the end face of the rotary sealing ring is adopted, the spiral distributed micropores can produce hydrodynamic pressure to achieve non-contact lubrication under the working condition of high speed and high pressure. Meanwhile, the multiple micropores can effectively reduce friction torque, quantity of heat production and frictional wear. An oil film is enabled to be in a lubrication state due to an oil fixing function of the multiple micropores under the low-speed working condition, and then using performance of the sealing ring is improved, and the service life of the sealing ring is prolonged.

Description

technical field [0001] The invention relates to a rotary sealing ring, in particular to a rotary sealing ring for a vehicle with a spiral distributed porous end face, which belongs to the technical field of sealing engineering of the vehicle transmission device. Background technique [0002] In the vehicle transmission system, the rotary sealing ring is used in the oil distribution device of the wet clutch or brake, and is the key sealing element, which directly affects the overall performance, safety, reliability and durability of the transmission. In the actual use process, the failure of the rotary seal often leads to the overall failure of the traditional device. The failure form is mostly severe wear of the sealing end face, and this wear failure depends on the lubrication state of the frictional pair surface. Contents of the invention [0003] In view of this, the present invention provides a rotary sealing ring for vehicles with a helically distributed porous end f...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16J15/16
Inventor 胡纪滨赵一民苑士华吴维
Owner BEIJING INSTITUTE OF TECHNOLOGYGY
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