Dustproof structure of steering shaft

A technology of dust-proof structure and steering shaft, which is applied in the direction of transportation and packaging, vehicle parts, etc., can solve the problems of poor waterproof, dustproof and sound insulation effects, poor sealing, and unsatisfactory performance, so as to reduce the transmission effect, improve the sound insulation effect, The effect of long service life

Active Publication Date: 2022-01-28
NUOBO RUBBER PRODION
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the dust cover of the steering shaft clamped on the front wall plate and the lower steering shaft are designed to have a clearance fit. Poor performance, poor waterproof, dustproof and sound insulation effect, unable to meet the vehicle NVH (noise, vibration and harshness) target

Method used

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  • Dustproof structure of steering shaft
  • Dustproof structure of steering shaft
  • Dustproof structure of steering shaft

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Embodiment Construction

[0058] It should be noted that, in the case of no conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other.

[0059] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "upper", "lower", "inner", "back" and the like are based on the orientation or positional relationship shown in the drawings, and are only for It is convenient to describe the present invention and simplify the description, but does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and thus should not be construed as limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only, and should not be understood as indicating or implying relative importance.

[0060] In addition, in the description of the present invention, th...

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PUM

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Abstract

The invention provides a dustproof structure of a steering shaft. The dustproof structure comprises a structure main body, a sealing part and a mounting part, wherein a through hole for a steering shaft to penetrate through is formed in the structure main body; the sealing part comprises an outer sealing piece and an inner sealing piece which are arranged outside the structural main body in a sleeving mode, a first cavity is defined between the outer sealing piece and the structural main body, a second cavity is defined among the outer sealing piece, the inner sealing piece and the structural main body, and the first cavity and the second cavity are arranged in a stacked mode in the axial direction of the structural main body; a silencing hole unit communicated with the cavity is arranged on the structural main body; and the mounting part is arranged on the sealing part. According to the dustproof structure of the steering shaft, the outer sealing piece and the inner sealing piece are arranged, the two cavities stacked in the axial direction of the structural main body are formed, dust and water can be effectively prevented, meanwhile, multi-stage isolation of noise transmitted to a cab can be formed, and the noise transmitted to the cavities can be effectively eliminated due to the fact that the noise elimination hole units are arranged in the cavities, so that the dustproof structure has good sound insulation performance.

Description

technical field [0001] The invention relates to the technical field of auto parts, in particular to a dustproof structure of a steering shaft. Background technique [0002] The steering gear of the existing automobile steering system is arranged in the engine compartment, the steering column is arranged in the cockpit, and the lower steering shaft passes through the hole in the front wall plate to connect with the steering gear. In order to prevent dust, muddy water noise, etc. The steering shaft dust cover needs to be installed at the plate hole. At present, the dust cover of the steering shaft clamped on the front wall plate and the lower steering shaft are designed to have a clearance fit. The performance is not good, the waterproof, dustproof and sound insulation effect is poor, and it cannot meet the NVH (noise, vibration and harshness) target of the whole vehicle. Contents of the invention [0003] In view of this, the present invention aims to provide a dustproof ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60R13/08
CPCB60R13/0853Y02T10/40
Inventor 王朝武伟郭萌石伟田大维林剑明管文华
Owner NUOBO RUBBER PRODION
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