The dust-proof axle of the invention includes a hollow shaft. Bearings are respectively arranged outside the two ends of the hollow shaft. The hollow shaft is installed in the axle box through the bearings, and the hollow shaft is used for connecting the wheels; the outer end of the axle hole of the hollow shaft is provided with a dust-proof cover which is relatively fixed, and the dust-proof cover is provided with a plug-in column matching the shape and size of the hollow shaft hole, and the plug-in column can be inserted into the hollow shaft just from the end The shaft hole of the hollow shaft is sealed, and the shaft hole is isolated from the outside. After the dust cover is set, the shaft hole of the hollow shaft is no longer connected with the outside, and the inside is not affected by impurities, so rust can be avoided; because the dust cover is inserted in the hollow shaft, the dust cover can be removed from the hollow shaft when it is necessary to conduct flaw detection on the hollow shaft, and the dust cover can be re inserted after the flaw detection to prevent the flaw detection liquid from invading the shaft end components, so as to avoid failure. The invention also provides a train including the dust-proof axle, and the train can achieve the same technical effect.
【技术实现步骤摘要】
一种防尘车轴及轨道列车
本专利技术涉及有轨列车转向架轮对
,更进一步涉及一种防尘车轴。此外,本专利技术还涉及一种包括上述防尘车轴的轨道列车。
技术介绍
轨道车辆转向架系统所使用的车轴一般分为实心车轴和空心车轴两种,空心车轴能够有效地减轻车轴重量,从而减轻簧下质量,提高车辆运行的平稳性和舒适性,尤其适用于高速列车。空心车轴的两端贯通设置,车轴的内腔暴露在轴箱内,轴箱内部的杂质、水汽等物质容易进入空心轴内,造成车轴锈蚀;另外,动车组采用空心轴可方便探伤,残留的探伤液很容易从空心轴流入到轴箱内,从而侵入轴承等轴端元件,造成轴承锈蚀失效,一旦锈蚀会极大地影响列车的安全运行。因此,对于本领域的技术人员来说,如何避免外部的水汽、杂质等进入车轴内部,是目前需要解决的技术问题。
技术实现思路
本专利技术提供一种防尘车轴。该车轴能够防止外界各种杂质进入空心轴内腔中,以防锈蚀,还可避免探伤液侵入轴端元件,具体方案如下:一种防尘车轴,包括空心轴,所述空心轴的两端分别设有轴承,并通过所述轴承安装于轴箱中;所述空心轴在轴孔的外端处设有与之相对固定的防尘盖,所述防尘盖的插接柱插入所述空心轴的轴孔,将所述空心轴的轴孔密封,使所述轴孔的内腔与外界隔离。可选地,所述插接柱的外壁上沿周向设置密封圈,所述密封圈填充于所述空心轴的内腔和所述插接柱之间的间隙。可选地,所述插接柱的外壁上沿圆周方向开设用于定位所述密封圈轴向位置的密封环槽。4、根据权利要求2所述的防尘车轴,其特征在于,所述防尘盖还 ...
【技术保护点】
1.一种防尘车轴,其特征在于,包括空心轴(1),所述空心轴(1)的两端分别设有轴承(2),并通过所述轴承(2)安装于轴箱(3)中;所述空心轴(1)在轴孔的外端处设有与之相对固定的防尘盖(4),所述防尘盖(4)的插接柱(41)插入所述空心轴(1)的轴孔,将所述空心轴(1)的轴孔密封,使所述轴孔的内腔与外界隔离。/n
【技术特征摘要】
1.一种防尘车轴,其特征在于,包括空心轴(1),所述空心轴(1)的两端分别设有轴承(2),并通过所述轴承(2)安装于轴箱(3)中;所述空心轴(1)在轴孔的外端处设有与之相对固定的防尘盖(4),所述防尘盖(4)的插接柱(41)插入所述空心轴(1)的轴孔,将所述空心轴(1)的轴孔密封,使所述轴孔的内腔与外界隔离。
2.根据权利要求1所述的防尘车轴,其特征在于,所述插接柱(41)的外壁上沿周向设置密封圈(5),所述密封圈(5)填充于所述空心轴(1)的内腔和所述插接柱(41)之间的间隙。
3.根据权利要求2所述的防尘车轴,其特征在于,所述插接柱(41)的外壁上沿圆周方向开设用于定位所述密封圈(5)轴向位置的密封环槽。
4.根据权利要求2所述的防尘车轴,其特征在于,所述防尘盖(4)还包括连接于所述插接柱(41)外端的凸缘(42),所述插接柱(41)和所述凸缘(42)在纵截面上呈“T”字型;所述凸缘(42)的径向尺寸大于所述插接柱(41)的直径。
5.根据权利要求4所述的防尘车轴,其...
【专利技术属性】
技术研发人员:刘兆金,马克,刘超,韩光旭,
申请(专利权)人:中车长春轨道客车股份有限公司,
类型:发明
国别省市:吉林;22
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