CN205154871U - 弧面自挤螺栓 - Google Patents

弧面自挤螺栓 Download PDF

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Publication number
CN205154871U
CN205154871U CN201520946823.3U CN201520946823U CN205154871U CN 205154871 U CN205154871 U CN 205154871U CN 201520946823 U CN201520946823 U CN 201520946823U CN 205154871 U CN205154871 U CN 205154871U
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bolt
cambered surface
screw rod
crowded
triangle
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尤成武
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Zhejiang Huayuan Automobile Technology Co.,Ltd.
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ZHEJIANG HUAYUAN AUTOMOBILE PARTS Co Ltd
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Abstract

本实用新型公开了一种弧面自挤螺栓,包括螺帽和螺杆,其特征是:所述螺杆设有外螺纹,所述外螺纹截面为弧形边的类三角形。该螺栓自挤效率高,该螺栓与自挤出的螺纹连接强度和锁紧强度高。

Description

弧面自挤螺栓
技术领域
本实用新型涉及一种弧面自挤螺栓。
背景技术
在大铸件时,铸铁件上需通过螺栓连接其他部件,因铸件不能直接铸出螺纹,一般都会事先钻出坯孔后再制成螺纹,工序繁多,时间和人力成本较大,且普通螺栓在使用过程中容易因外界原因发生松动,锁紧强度低。
实用新型内容
鉴于背景技术存在的不足,本实用新型所要解决的技术问题是提供一种结构简单、连接强度和锁紧强度高的弧面自挤螺栓。
本实用新型是采取如下技术方案来完成的:弧面自挤螺栓,包括螺帽和螺杆,所述螺杆设有外螺纹,所述外螺纹截面为弧形边的类三角形。
所述类三角形的三条边为弧线,所述类三角形两点间直线的中心到弧线的距离为0.6丝米。
本实用新型中,该弧面自挤螺栓结构简单,且无需提前在坯孔内制出内螺纹,外螺纹的横截面为弧形边的类三角形,在使用时自挤坯孔内的内螺纹的效率高,且该螺栓的外螺纹与自挤的内螺纹相互之间产生一种相互锁紧的力,大大提高连接的强度和锁紧强度。
附图说明
本实用新型有如下附图:
图1为实用新型提供的弧面自挤螺栓的结构平面示意图。
图2为图1中的弧面自挤螺栓的A-A剖视示意图。
具体实施方式
附图表示了本实用新型的技术方案及其实施例,下面再结合附图进一步描述其实施例的各有关细节及其工作原理。
参照图1、图2所示,本实用新型提供的一种弧面自挤螺栓,包括螺帽1和螺杆2,所述螺杆2设有外螺纹3,所述外螺纹截面为弧形边的类三角形,所述类三角形4的三条边为弧线5,所述三角形4两点间直线6的中心到弧线5的距离为0.6丝米。
使用该弧面自挤螺栓,铸铁件上只需钻出坯孔,省去了制螺纹的工序,直接用电动设备来进行自挤攻牙,该螺栓的外螺纹3与自挤的内螺纹相互之间产生一种相互锁紧的力,大大提高连接的强度和锁紧强度。

Claims (2)

1.一种弧面自挤螺栓,包括螺帽和螺杆,其特征是:所述螺杆设有外螺纹,所述外螺纹截面为弧形边的类三角形。
2.根据权利要求1所述的弧面自挤螺栓,其特征是:所述类三角形的三条边为弧线,所述类三角形两点间直线的中心到弧线的距离为0.6丝米。
CN201520946823.3U 2015-11-25 2015-11-25 弧面自挤螺栓 Active CN205154871U (zh)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201520946823.3U CN205154871U (zh) 2015-11-25 2015-11-25 弧面自挤螺栓

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201520946823.3U CN205154871U (zh) 2015-11-25 2015-11-25 弧面自挤螺栓

Publications (1)

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CN205154871U true CN205154871U (zh) 2016-04-13

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CN201520946823.3U Active CN205154871U (zh) 2015-11-25 2015-11-25 弧面自挤螺栓

Country Status (1)

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CN (1) CN205154871U (zh)

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GR01 Patent grant
CP03 Change of name, title or address

Address after: No. 611, Dingxiang Road, Wenzhou Economic and Technological Development Zone, Zhejiang 325000

Patentee after: Zhejiang Huayuan Automobile Technology Co.,Ltd.

Address before: No. 611, Dingxiang Road, Binhai Park, Wenzhou Economic and Technological Development Zone, Zhejiang Province

Patentee before: ZHEJIANG HUAYUAN AUTOMOBILE PARTS Co.,Ltd.

CP03 Change of name, title or address