CN205578485U - 阶梯轴 - Google Patents

阶梯轴 Download PDF

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CN205578485U
CN205578485U CN201620317716.9U CN201620317716U CN205578485U CN 205578485 U CN205578485 U CN 205578485U CN 201620317716 U CN201620317716 U CN 201620317716U CN 205578485 U CN205578485 U CN 205578485U
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axle body
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王勇根
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BAOJI TOP OF TITANIUM INDUSTRY Co Ltd
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Abstract

一种阶梯轴,所述阶梯轴包括本体和键体,所述本体包括轴身、设于所述轴身两相对端部的第一轴体和第二轴体、设于第一轴体远离所述轴身一端的第一轴肩、设于第二轴体远离所述轴身一端的第二轴肩及设于第一轴肩远离所述轴身一端的轴头,所述轴头包括贯穿所述轴头的键槽,所述键槽的两相对侧壁包括若干个沿所述阶梯轴延伸方向设置的凸起部,若干个所述凸起部间隔设置,所述键体安装于所述键槽内且所述键体的两相对侧壁包括若干个凹槽部,所述凹槽部与所述凸起部数量相同且尺寸匹配。

Description

阶梯轴
技术领域
本实用新型涉及一种转轴,更具体地说,它涉及一种阶梯轴。
背景技术
现有技术中轴类件的种类很多,其中大多数转轴上都设置有键槽,用于安装键并通过键来使安装在转轴上的零件如齿轮等与转轴间可以产生扭矩,而大多数通过键来安装固定零件时,由于需要保证零件在转动过程不发生滑动,这就要求键与零件间的间隙非常小,即零件与键间存在预紧力。
现有结构键槽与键的安装接触面积小,因此受力面积小,通过键来安装固定零件时,存在脱落或滑动等不稳定情况。
因此,有必要提供一种新的阶梯轴。
实用新型内容
针对现有技术存在的不足,本实用新型的目的在于提供一种阶梯轴,以解决上述问题。
本实用新型的技术方案如下:
一种阶梯轴,所述阶梯轴包括本体和键体,所述本体包括轴身、设于所述轴身两相对端部的第一轴体和第二轴体、设于第一轴体远离所述轴身一端的第一轴肩、设于第二轴体远离所述轴身一端的第二轴肩及设于第一轴肩远离所述轴身一端的轴头,所述轴头包括贯穿所述轴头的键槽,所述键槽的两相对侧壁包括若干个沿所述阶梯轴延伸方向设置的凸起部,若干个所述凸起部间隔设置,所述键体安装于所述键槽内且所述键体的两相对侧壁包括若干个凹槽部,所述凹槽部与所述凸起部数量相同且尺寸匹配。
优选的,所述凸起部和所述凹槽部的数量均为四个且每两个一组设置于一侧壁。
优选的,还包括中心孔,所述中心孔贯穿所述本体。
优选的,所述凸起部的宽度逐渐增大且最大宽度与所述凹槽部相同。
优选的,所述第一轴体和第二轴体的小于轴身的直径,大于所述第一轴肩和第二轴肩的直径。
优选的,所述本体为一体成型。
优选的,所述阶梯轴为合金结构钢、轴承钢、工模具钢、碳素工具钢、钛及钛合金中的任意一种制成。
本实用新型的有益效果在于:本实用新型阶梯轴在键槽贯通所述轴头时,通过在键槽的侧壁设置凸起部、在键体的侧壁设置凹槽部,通过凹槽部与凸起部的相互啮合,增加了键体与本体的稳定性,从而保证了阶梯轴的稳定使用。
附图说明
图1为本实用新型阶梯轴的平面结构示意图;
图2为本实用新型阶梯轴的侧视图。
具体实施方式
下面结合附图和实施方式对本实用新型作进一步说明。
请同时参阅图1和图2,本实用新型公开一种阶梯轴,所述阶梯轴包括本体和键体。
所述本体包括轴身11、中心孔19、设于所述轴身11两相对端部的第一轴体12和第二轴体13、设于第一轴体11远离所述轴身11一端的第一轴肩14、设于第二轴体13远离所述轴身11一端的第二轴肩15及设于第一轴肩14远离所述轴身11一端的轴头16,所述轴头16包括贯穿所述轴头16的键槽,所述键槽的两相对侧壁包括若干个沿所述阶梯轴1延伸方向设置的凸起部161,若干个所述凸起部161间隔设置;所述中心孔19贯穿所述本体。
所述键体10安装于所述键槽内且所述键体10的两相对侧壁包括若干个凹槽部101,所述凹槽部101与所述凸起部161数量相同且尺寸匹配。
在本实施例中,所述凸起部161和所述凹槽部101的数量均为四个且每两个一组设置于一侧壁,具体的,所述凸起部161的宽度逐渐增大且最大宽度与所述凹槽部101相同。该结构保证了键体安装时,方便键体10的安装而不损坏键槽。
所述第一轴体12和第二轴体13的小于轴身11的直径,大于所述第一轴肩14和第二轴肩15的直径;所述本体为一体成型。
所述阶梯轴1为合金结构钢、轴承钢、工模具钢、碳素工具钢、钛及钛合金中的任意一种制成。
本实用新型阶梯轴在键槽贯通所述轴头时,通过在键槽的侧壁设置凸起部、在键体的侧壁设置凹槽部,通过凹槽部与凸起部的相互啮合,增加了键体与本体的稳定性,从而保证了阶梯轴的稳定使用。
以上所述的仅是本实用新型的实施方式,在此应当指出,对于本领域的普通技术人员来说,在不脱离本实用新型创造构思的前提下,还可以做出改进,但这些均属于本实用新型的保护范围。

Claims (7)

1.一种阶梯轴,所述阶梯轴包括本体和键体,所述本体包括轴身、设于所述轴身两相对端部的第一轴体和第二轴体、设于第一轴体远离所述轴身一端的第一轴肩、设于第二轴体远离所述轴身一端的第二轴肩及设于第一轴肩远离所述轴身一端的轴头,其特征在于,所述轴头包括贯穿所述轴头的键槽,所述键槽的两相对侧壁包括若干个沿所述阶梯轴延伸方向设置的凸起部,若干个所述凸起部间隔设置,所述键体安装于所述键槽内且所述键体的两相对侧壁包括若干个凹槽部,所述凹槽部与所述凸起部数量相同且尺寸匹配。
2.根据权利要求1所述的阶梯轴,其特征在于:所述凸起部和所述凹槽部的数量均为四个且每两个一组设置于一侧壁。
3.根据权利要求1所述的阶梯轴,其特征在于:还包括中心孔,所述中心孔贯穿所述本体。
4.根据权利要求1所述的阶梯轴,其特征在于:所述凸起部的宽度逐渐增大且最大宽度与所述凹槽部相同。
5.根据权利要求1所述的阶梯轴,其特征在于:所述第一轴体和第二轴体的小于轴身的直径,大于所述第一轴肩和第二轴肩的直径。
6.根据权利要求1所述的阶梯轴,其特征在于:所述本体为一体成型。
7.根据权利要求1所述的阶梯轴,其特征在于:所述阶梯轴为合金结构钢、轴承钢、工模具钢、碳素工具钢、钛及钛合金中的任意一种制成。
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109185327A (zh) * 2018-09-14 2019-01-11 汉中天行智能飞行器有限责任公司 一种双曲线变径轴

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109185327A (zh) * 2018-09-14 2019-01-11 汉中天行智能飞行器有限责任公司 一种双曲线变径轴

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