WO1996013671A1 - Dispositif a vis autobloquant et son procede de formation - Google Patents

Dispositif a vis autobloquant et son procede de formation Download PDF

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Publication number
WO1996013671A1
WO1996013671A1 PCT/CN1995/000079 CN9500079W WO9613671A1 WO 1996013671 A1 WO1996013671 A1 WO 1996013671A1 CN 9500079 W CN9500079 W CN 9500079W WO 9613671 A1 WO9613671 A1 WO 9613671A1
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WO
WIPO (PCT)
Prior art keywords
self
thread
angle
locking
internal
Prior art date
Application number
PCT/CN1995/000079
Other languages
English (en)
French (fr)
Inventor
Ming Ouyang
Original Assignee
Ming Ouyang
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Ming Ouyang filed Critical Ming Ouyang
Publication of WO1996013671A1 publication Critical patent/WO1996013671A1/zh

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B39/00—Locking of screws, bolts or nuts
    • F16B39/22—Locking of screws, bolts or nuts in which the locking takes place during screwing down or tightening
    • F16B39/28—Locking of screws, bolts or nuts in which the locking takes place during screwing down or tightening by special members on, or shape of, the nut or bolt
    • F16B39/30—Locking exclusively by special shape of the screw-thread

Definitions

  • the present invention relates to a self-ballasting thread, and in particular to a coupling system for an anti-loosening screw in any occasion and a processing method for producing such a self-locking thread.
  • the MIT's Nayak J proposed a self-locking thread scheme, which achieved effective self-ballasting of the thread through a profiled tooth profile design, but this profiled tooth profile
  • the manufacturing process is complicated and weakens the strength of the thread itself, especially for small-size threads, such as below M5.
  • Another defect is that it can be self-sustaining in one direction, that is, the direction of assembly. It must be consistent with the direction of thread processing to be self-ballasting, which causes inconvenience in use.
  • the present inventor proposed with a different concept completely from Nayak's invention; an effective technical solution for the self-locking of the thread pair, the self-locking thread of the present invention overcomes the outer diameter of the screw and the root of the screw hole due to the need for assembly. There is a gap between the diameters, which leads to the defect of relative traverse between the two, which also eliminates the consequences of the different axes of the centerline of the two. Even with strong throbbing, especially lateral throbbing, because
  • An object of the present invention is to provide a single threaded coupling system that has an ideal anti-loosening effect and a very simple structure, and a method for manufacturing the same.
  • the self-locking screw and pattern of the present invention are realized by the following technical scheme.
  • the tip angle " ⁇ ,” of the external thread is made smaller than the internal tip angle " 2" , that is, “ ⁇ ,” ⁇ ” ⁇ 2 "
  • the manufacturing method steps for the internal and external lines that are self-locking are as follows:
  • the self-locking of " ⁇ ,” ⁇ " ⁇ 2 ,” can be produced by making the cusp angle "ou” of the inner wire plate making the external thread smaller than the apex angle of the external tap of the inner thread. Threaded system. This new type of self-locking thread can be screwed in from both directions when in use. Overview of the drawings
  • a 1 is a longitudinal sectional view of the internal and external threads in the thread system
  • a 2 represents a longitudinal cross-sectional view of the cusp angle " ⁇ 3 " of the tap
  • IS 3 represents a longitudinal sectional view of the cusp angle " ⁇ " of the wire plate
  • the cusp angle of the external thread is made smaller than the cusp angle of the internal thread by " ⁇ 2 ", that is, " ⁇
  • the thread pattern of the thread can play a good self-bismuth effect.
  • the internal thread is used to tap the external thread and the external tap is used to tap the internal thread, as shown in Figure 2 and Figure 3. It can be seen that the cusp angle "c" of the inner wire plate is smaller than the cusp angle of the outer tap.
  • Thread system for internal and external threads of " ⁇ 2 " The shape of the inner wire plate may be circular, plate-shaped, or arc-shaped.
  • the angles " ⁇ ,”" ⁇ 2 '," ⁇ 4 ", and” ⁇ 3 " can be positive or negative.
  • the point of the invention is that compared with the prior art, there is no need for a special tooth profile to have self-advice, so that the six-degree-of-freedom internal threads will not loosen, and the processing method is easy to manufacture, thereby reducing costs. Improve effectiveness. It can replace the traditional spiral spring pads, saddle spring washers, external tooth elastic pads, and single-ear, double-ear stop pads. The regiment has greater self-regulation capabilities and a wider range of uses, so it is widely used in industry and has a vision of vigorous promotion.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Wire Processing (AREA)
  • Surgical Instruments (AREA)

Description

自锁螺纹及其制造方法
技术领域
本发明涉及一种自镇螺紋，尤其涉及一种在任何场合下的防松 螺 的联接糸统以及制達这种自锬螺紋的加工方法。
背景技术
以前，美国麻省理工学院納雅 J (Nayak)敉授曾提出了一种自铽 螺紋方案，它是通过一种异型的牙型设计实现了螺紋的有效自镇，但 这种异型牙形的制達工艺，复杂同时也削弱了螺紋自身的强度，尤其 吋小尺寸螺紋，例如 M5以下，上述缺陷更明显，另外的一个缺陷是 它 、能在一个方向上具有自锬性，即装配的方向必须和螺紋加工的 方向一致才有自镇性，这就带来使用上的不便。而本发明人以完全与 Nayak发明的不同构思提出了；一种螺紋副自钺的有效技术解决方 案，本发明的自钺螺紋克服了由于装配的需耍而使螺检外径和螺孔 根径之间存在的隙，从而导致二者之间相对横移的缺陷，也就消除二 者的中心线不同轴的后果。即使在强烈的拫动下尤其是横向拫动，因
Figure imgf000003_0001
载荷的振动下 不会被拫松，因此就达到自锁的效果。
本发明的目的是提供一种既具有理想防松效果，而结构又非常 ¾单的螺紋联接糸统以及其制造方法。
发明内容
本发明的自钺螺、紋是由以下技术方案来实现的；具有内外螺紋 的螺紋副中，把外螺紋的牙尖角 "α, "做成小于内螺紋牙尖角 "α2，，即 " α , " < " α2 "当螺紋糸统旋紧时，螺 *£系统将确保消除六个自由度而 实现自钺。关于上述的起自锁作用的内外^紋的制造方法步骤如下： 把制迻外螺紋的内丝板的牙尖角" ou"做成小于制達内螺紋的外丝锥 牙尖角 "α 即" 就可以制造出 "α, "<"α2，，的自锁螺紋糸统。 这种新型的自锁螺紋，在使用时，内外螺紋可以从两个方向拧入。 附图概述
a 1是螺紋糸统中内外螺紋配合时的纵向剖枧图；
a 2表示丝锥的锥牙尖角 "α3"的纵向剖視图；
IS 3表示丝板的牙尖角" α '的纵向剖视图；
本发明的最佳实^方式
现在结合附图对本发明的实^例进行具体的说明。
在具有内外螺紋的螺紋糸统中，如图 1所示，把外螺紋的牙尖角 ,做成小于内螺紋牙尖角 "α2 "，即 "α| "<"α2 "这样，内外螺紋的^紋 糸统就能起到良好的自铋效果，至于自锁的内外^紋制迻方法为用 内丝板攻出外螺紋而用外丝锥攻出内螺紋，如困 2和图 3所示，其中 内丝板的牙尖角" c ，要小于外丝锥的牙尖角 ，，就能加工出
"α2 "的内外螺紋的螺紋糸统。 内丝板的形状可以是圆形也可以是板 形、弧形。 上述的角度 "α， ""α2 '，"α4 "和 "α3 "可以是正值，也可以是负 值。
工业应用性
本发明的 it点在于与先有技术相比，不需特殊的牙型就会有自 钺劝能，做到六个自由度内螺紋不会松动，且加工方法 单易于制造 从而使成本下降，劝效提高。 它可以代替传统的螺旋形弹簧垫圏、鞍 型弹簧垫圈、外齿弹性垫團和单耳、双耳止动垫图等而且本发明的自 铖螺紋的自钺能力比加上上述^松垫團的自镇能力更大，使用范围 更广，因此在工业上得到广泛的应用，具有大力推广的远景。

Claims

1. 一种自锁螺紋，具有内外^紋糸统，其特征在于外螺紋的牙尖 角 "0, "小于内螺紋的牙尖角 " ，，，即" a, "<"cx2"。
2. 一种自锬^紋的制造方法，具有制達外嫘紋的内丝板和制達 内螺紋的外丝锥，其特征在于内丝板的牙尖角 "α '小于外丝锥的牙 尖角" α3",即 "a3"<"ot '。
3. 如权利要求 1所述的自销螺紋，其特征在于外螺紋的牙尖角 "α, "和内螺紋的牙尖角 "α2，，可以是负值。
4. 如权利要求 2所述的自镇螺紋的制這方法，其特征在于内丝 板的牙尖角 "和外丝锥的牙尖角 "03"可以是负值。
PCT/CN1995/000079 1994-11-01 1995-10-13 Dispositif a vis autobloquant et son procede de formation WO1996013671A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN 94117411 CN1110380A (zh) 1994-11-01 1994-11-01 自锁螺纹及其制造工具
CN94117411.5 1994-11-01

Publications (1)

Publication Number Publication Date
WO1996013671A1 true WO1996013671A1 (fr) 1996-05-09

Family

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Country Status (2)

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CN (1) CN1110380A (zh)
WO (1) WO1996013671A1 (zh)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010133116A1 (zh) * 2009-05-21 2010-11-25 上海底特精密紧固件有限公司 具有内螺纹的紧固构件和螺纹紧固组件

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1071164C (zh) * 1997-07-25 2001-09-19 欧阳明 高精度螺纹及其制造工具

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2225607A (en) * 1938-10-11 1940-12-24 Gen Electric Fastening device and method for making the same
US3661471A (en) * 1970-10-12 1972-05-09 Louis Simonffy Thread cutting tools
GB2172950A (en) * 1985-03-30 1986-10-01 James H Thorpe Self-locking threading and method of forming it
CN2046053U (zh) * 1988-11-25 1989-10-18 龚华刚 六角形板牙及其铰杆
GB2229785A (en) * 1989-03-31 1990-10-03 Mikuriya Yugengaisha Asymmetric screw threaded devices

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2225607A (en) * 1938-10-11 1940-12-24 Gen Electric Fastening device and method for making the same
US3661471A (en) * 1970-10-12 1972-05-09 Louis Simonffy Thread cutting tools
GB2172950A (en) * 1985-03-30 1986-10-01 James H Thorpe Self-locking threading and method of forming it
CN2046053U (zh) * 1988-11-25 1989-10-18 龚华刚 六角形板牙及其铰杆
GB2229785A (en) * 1989-03-31 1990-10-03 Mikuriya Yugengaisha Asymmetric screw threaded devices

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010133116A1 (zh) * 2009-05-21 2010-11-25 上海底特精密紧固件有限公司 具有内螺纹的紧固构件和螺纹紧固组件

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Publication number Publication date
CN1110380A (zh) 1995-10-18

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