The invention provides an input shaft structure with a waterproof breathable plug. The input shaft structure comprises an input shaft, the end portion of the inner end of the input shaft is rotationally installed on a shell of a steering gear in a sealed mode, the inner end of the input shaft is located in an inner cavity of the shell, the input shaft is provided with a center through hole, the center through hole is communicated with the inner cavity, and the plug is arranged at the outer end of the center through hole. The input shaft is arranged to be of a hollow structure, the hollow shaft is communicated with the inner cavity of the steering gear shell, and the waterproof and breathable plug is arranged in the port of the outer end of the input shaft, so that water vapor or dust can be effectively prevented from entering the steering gear shell while air pressure balance between the interior and the exterior of the steering gear shell is guaranteed; the service life and the sealing structure of the automobile steering device are not influenced; the waterproof ventilation structure is scientific and reasonable in structural design, convenient to assemble and maintain and good and stable in waterproof ventilation effect.
本发明提供一种设有防水透气堵头的输入轴结构,包括输入轴,输入轴的内端端部转动且密封安装在转向器的壳体上,输入轴的内端位于壳体的内腔中,输入轴设有中心通孔,中心通孔与内腔相通,在中心通孔的外端设置有堵头。将输入轴设置成空心结构并使空心轴与转向器壳体的内腔相通,并在输入轴外端端口内设置防水透气的堵头,从而保证转向器壳体内部与外部气压平衡的同时,可有效防止转向器壳体内进入水汽或者灰尘,进而保证汽车转向器的使用寿命和其密封结构不受影响;本发明结构设计科学合理,方便装配和维护,防水透气效果好且稳定。
Input shaft structure with waterproof breathable plug
一种设有防水透气堵头的输入轴结构
2021-06-04
Patent
Elektronische Ressource
Chinesisch
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