The utility model discloses a valve rocker arm of a self-cooling engine, which comprises a bearing assembly and a rocker arm body. A plurality of threaded holes are arranged around the connecting hole. The threaded holes are connected with a heat conducting rod. The cross-section shape of the heat conducting rod is rectangular, and the outer wall of the heat conducting rod is coated with graphene layer. The valve rocker arm of the self-cooling engine in the utility model realizes self-cooling on the basis of guaranteeing the strength of the rocker arm body by opening multiple threaded holes around the connecting hole, and connecting the heat conducting rod with threads inside the threaded hole. The material of the heat conducting rod is a metal material with certain strength and is conducive to heat conduction. The cross-section shape of the heat conducting rod is rectangular, and the structure can be supported in the threaded hole. The clearance between the threaded hole and the heat conducting rod is conducive to heat dissipation. At the same time, the outer wall of the heat conducting rod is coated with graphene layer. Because graphene has very good heat conductivity, the heat dissipation effect of the rocker arm is further improved.
【技术实现步骤摘要】
自散热发动机气门摇臂
本技术涉及发动机摇臂
,尤其涉及自散热发动机气门摇臂。
技术介绍
发动机气门摇臂是通过配合凸轮轴的打开方式,来完成发动机的进气和排气的功能,发动机工作时,曲轴通过齿轮驱动凸轮轴旋转,当凸轮轴的凸起部分顶起挺柱时,挺柱推动推杆一起上行,作用于摇臂上的推动力驱使摇臂绕轴转动,从而使得摇臂与发动机气门连接的一端压缩气门弹簧使气门下行,从而打开气门;随着凸轮轴的继续转动,当凸轮轴的凸起部分离开挺柱时,作用在摇臂上的用于使摇臂压缩气门弹簧的力消失,则气门在气门弹簧张力作用下上行,从而实现关闭。现有的发动机气门摇臂都是一体式铸造而成,通常不会在摇臂体上开设透气孔来进行散热处理,由于直接开设散热透气孔会降低摇臂体的强度,使得气门摇臂变得脆弱容易发生变形,而不开设透气孔又不能起到很好的散热作用。
技术实现思路
为解决现有技术中,发动机气门摇臂存在的散热不好的技术问题,本技术的技术方案如下:本技术中的自散热发动机气门摇臂,包括轴承组件及摇臂体,所述摇臂体开设连接孔,所述轴承组件装配于连接孔内,所述连接孔的四周开设多个螺纹孔,所述螺纹孔内螺纹连接导热杆,所述导热杆 ...
【技术保护点】
1.自散热发动机气门摇臂,包括轴承组件及摇臂体,所述摇臂体开设连接孔,所述轴承组件装配于连接孔内,其特征在于,所述连接孔的四周开设多个螺纹孔,所述螺纹孔内螺纹连接导热杆,所述导热杆的断面形状为长方形,所述导热杆的外壁涂覆石墨烯层。
【技术特征摘要】
1.自散热发动机气门摇臂,包括轴承组件及摇臂体,所述摇臂体开设连接孔,所述轴承组件装配于连接孔内,其特征在于,所述连接孔的四周开设多个螺纹孔,所述螺纹孔内螺纹连接导热杆,所述导热杆的断面形状为长方形,所述导热杆的外壁涂覆石墨烯层。2.根据权利要求1所述的自散热发动机气门摇臂,其特征在于,所述导热杆的两侧一体成型设有加强块,使所述导热杆的断面形状呈十字形,所述加强块的端面开设螺纹。3.根据权利要求2所述的自散热发动机气门摇臂,其特征在于,所述加强块为多个,等间距排布于导热杆的两侧。4.根据权利要求1所述的自...
【专利技术属性】
技术研发人员:徐晓鸣,
申请(专利权)人:成都市三宇电子机械有限公司,
类型:新型
国别省市:四川,51
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