CN102720792B - 承受冲击拉伸的组合式拉杆 - Google Patents

承受冲击拉伸的组合式拉杆 Download PDF

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CN102720792B
CN102720792B CN201210156345.7A CN201210156345A CN102720792B CN 102720792 B CN102720792 B CN 102720792B CN 201210156345 A CN201210156345 A CN 201210156345A CN 102720792 B CN102720792 B CN 102720792B
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CN102720792A (zh
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韩福生
王新福
王幸福
杨建中
曾福明
满剑锋
朱汪
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Hefei Institutes of Physical Science of CAS
Beijing Institute of Spacecraft System Engineering
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Beijing Institute of Spacecraft System Engineering
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Abstract

本发明公开了一种承受冲击拉伸的组合式拉杆，包括有芯杆和一端的台阶，芯杆分为两端的螺纹段、中部的标距段，所述的台阶具有内螺纹孔，台阶分别与芯杆通过一端的螺纹连接并通过端面铆实锁定。本发明可降低拉杆机加工难度、减少机加工工时、提高材料利用率。

Description

承受冲击拉伸的组合式拉杆
技术领域
本发明涉及一种承受冲击拉伸的特殊合金钢拉杆产品，具体为承受冲击拉伸的组合式拉杆。
背景技术
为了防止冲击对被保护物体产生的破坏，通常采取某种缓冲材料或机构，利用其变形、破坏或动作吸收冲击能，从而使作用在被保护物体上的冲击力显著下降而免受损坏。本发明涉及的拉杆即为此类缓冲吸能产品。当相关机构受到冲击时，通过某种结构将压缩应力转换为拉杆的拉伸应力，再利用拉杆材料的塑性变形吸收冲击功。拉杆最大横截面尺寸为Φ10mm。原加工工艺采用Φ12×310mm的圆棒形毛坯整体车削而成，不仅加工难度大，而且费时、费工，每加工一件约耗时5-8小时。此外，Φ12×310mm的圆棒形毛坯重约254g，而拉杆产品仅重20g左右，材料利用率不到8%，浪费非常严重。为保证拉杆材料达到理想的综合力学性能尤其是极高的塑性，须加入多种贵重合金元素，同时须采用特种冶炼设备和工艺进行熔炼和铸造，且在机加工前还须进行一系列热加工，如锻造、轧制和热处理，材料成本非常高。如此低的材料利用率和如此低的机加工效率给拉杆生产带来了极为不利的影响，改进加工工艺、提高材料利用率、降低加工成本是亟待解决的问题。
发明内容
本发明的目的是在于提供一种可降低拉杆机加工难度、减少机加工工时、提高材料利用率的承受冲击拉伸的组合式拉杆。
本发明采用的技术方案如下：
抗冲击拉伸的组合式拉杆，包括有芯杆和台阶，芯杆分为两端的螺纹段、中部的标距段，所述的台阶具有内螺纹孔，台阶连接于芯杆一端的螺纹段上。
所述的台阶外端面与芯杆之间铆合锁定。
本发明根据拉杆各部位的结构特征，将芯杆和台阶分别加工后，通过芯杆一端的螺纹（M6×6mm）与台阶内螺纹连接，然后在其端部进行铆实，使连接螺纹锁定，最后再整体加工至拉杆整体形状。采用本发明设计，可使毛坯尺寸由Φ12×310mm减至Φ8×310mm，重量降至32g，芯杆重约17g，因此材料利用率升至53%左右，比原工艺提高了近6倍。
为获得最适宜的组合尺寸、最简易的加工方法以及确保拉杆拉伸断裂发生在标距段中部280mm长的范围以内，对不同组合截面比的拉杆进行了力学性能测试，结果如图4所示。可以看出，在所试验的几种截面组合比下，组合部位均未出现断裂或脱离，证明本发明设计的组合式拉杆是可行的。最终将连接螺纹的根部直径确定为3.5mm。
附图说明
   图1为本发明的台阶结构示意图。
图2为本发明的芯杆结构示意图。
图3为本发明的组合后拉杆结构示意图。
图4为本发明的拉伸应力应变曲线。
图5为现有技术拉杆的拉伸应力应变曲线。
具体实施方式
参见附图，抗冲击拉伸的组合式拉杆，包括有芯杆1和两端的螺纹2，芯杆1分为两端的螺纹段3、中部的标距段4，台阶具有内螺纹孔5，台阶2分别螺合于芯杆的两端的螺纹段上，台阶的端面与芯杆之间铆合锁定。

Claims (1)

1.承受冲击拉伸的组合式拉杆，其特征在于：包括有芯杆和台阶，芯杆分为两端的螺纹段和中部的标距段，所述的台阶具有内螺纹孔，台阶与芯杆一端的螺纹连接并铆实；所述的台阶端面与芯杆之间通过铆实锁定；将芯杆和台阶分别加工后，通过芯杆一端的螺纹与台阶内螺纹连接，然后在其端部进行铆实，使连接螺纹锁定，最后再整体加工至拉杆整体形状。
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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4302878A1 (en) * 1992-02-15 1993-08-19 Volkswagen Ag Motor vehicle frame member - has hollow support which can also act as additional deformation element
JP2006130936A (ja) * 2004-11-02 2006-05-25 Minoru Kasei Kk 衝撃吸収体
CN201866054U (zh) * 2010-09-02 2011-06-15 徐工集团工程机械股份有限公司科技分公司 新型轴端锁紧结构
CN201926586U (zh) * 2010-12-29 2011-08-10 海盐管件制造有限公司 管接头拔脱力试验机
CN201973156U (zh) * 2011-04-01 2011-09-14 许姜德 一种金属外壳阻尼器

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000081085A (ja) * 1998-09-04 2000-03-21 Mitsubishi Heavy Ind Ltd 履歴型ダンパーを備えた構造部材
CN201621166U (zh) * 2010-03-10 2010-11-03 苏州工业园区新凯精密五金有限公司 压铆螺母

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4302878A1 (en) * 1992-02-15 1993-08-19 Volkswagen Ag Motor vehicle frame member - has hollow support which can also act as additional deformation element
JP2006130936A (ja) * 2004-11-02 2006-05-25 Minoru Kasei Kk 衝撃吸収体
CN201866054U (zh) * 2010-09-02 2011-06-15 徐工集团工程机械股份有限公司科技分公司 新型轴端锁紧结构
CN201926586U (zh) * 2010-12-29 2011-08-10 海盐管件制造有限公司 管接头拔脱力试验机
CN201973156U (zh) * 2011-04-01 2011-09-14 许姜德 一种金属外壳阻尼器

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
吸能拉杆动态拉伸冲击试验技术研究;刘黎 等;《直升机技术》;20111231(第4期);第54-57页 *

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