CN1153260A - Screw check device - Google Patents
Screw check device Download PDFInfo
- Publication number
- CN1153260A CN1153260A CN 96122755 CN96122755A CN1153260A CN 1153260 A CN1153260 A CN 1153260A CN 96122755 CN96122755 CN 96122755 CN 96122755 A CN96122755 A CN 96122755A CN 1153260 A CN1153260 A CN 1153260A
- Authority
- CN
- China
- Prior art keywords
- screw
- structural member
- hole
- bore
- check device
- Prior art date
- Legal status (The legal status 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 status listed.)
- Pending
Links
- 238000003466 welding Methods 0.000 claims abstract description 7
- 239000011324 bead Substances 0.000 claims abstract description 6
- 208000005189 Embolism Diseases 0.000 claims description 7
- 239000000463 material Substances 0.000 description 5
- 229910001092 metal group alloy Inorganic materials 0.000 description 4
- 229910045601 alloy Inorganic materials 0.000 description 3
- 239000000956 alloy Substances 0.000 description 3
- 239000003795 chemical substances by application Substances 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 238000012856 packing Methods 0.000 description 2
- 238000001816 cooling Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 239000004519 grease Substances 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000003094 microcapsule Substances 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 229910000679 solder Inorganic materials 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Landscapes
- Connection Of Plates (AREA)
Abstract
In a screw securing device for a screw by means of which a first component and a second component are clamped together, a bushing includes a cylinder and a base which contains a bore, the bushing being arranged in a first bore of the first component. The first bore opens into a smaller, second bore of the first component, and said second bore is provided with a left-handed thread in which there is screwed a tubular extension which is arranged coaxially with the bore in the base. The screw is screwed, through the bushing and the tubular extension, into the second component by means of its right-handed thread. A cap, having an insert which is connected to the screw head in a positively locking manner, is fastened on the bushing by a welding bead.
Description
The present invention relates to a kind of screw check device that is used for screw that one first structural member and one second structural member are tightened together.
On the screw that tightens, screw thread is that single face reclines.Because screw pins voluntarily, the friction that occurs on the screw thread abutment face has prevented to get loose.If prestressing force is owing to slide (Schlupf) equals zero, just compressing in the screw thread stops, and screw just may get loose.Under the situation of collision and vibration, just may arrive this limit case.In order to deal with this situation, in screw connects, adopt locking member, these locking members will be when exceeding the resistance to flexure of screw the critical displacement point of (slips) appearance bring up to resistance to flexure can be exceeded under physical condition.
The anti-locking device of back-outing prevents from any get loose voluntarily and keep surpassing 80% prestressing force.According to the different requirements of use occasion, adopt the different anti-locking devices of back-outing.These requirements comprise load power and heating power and the consequent structural member to be tightened and the condition of screw link material selection.
For example ratchet bolt and nut (Sperrzahnschraube und-mutter) only is used for mainly requiring to have high prestressed structural member bolted and to be tightened not have the occasion on the surface of hardening in the direction perpendicular to the axis of bolt.
To this, micro-capsule tackiness agent (mikroverkapselter Klebstoff) can be used for the surface through hardening.But the temperature extremes of the tackiness agent that is adopted has limited using scope herein, and it is also noted that and treat that in installation process bonding surface will not have grease.
In addition, (the formschl ü ssig) that the available shape that has projection or an outer lug engages, fastening together packing ring are as the anti-locking device of back-outing, and its using scope is confined to other screw of low intensity level.
Also can use the anti-locking device of back-outing of not getting loose of solder joint or welding bead form.Directly weld at this head with the structural member that fastens through fastening screw.The prerequisite that adopts this locking device is the weldability of the material of used screw and structural member.By being to have only non-high-intensity alloy to weld at ambient temperature, and the weldability of high strength alloy is poor, consider to creating the required expense of special welding condition, preheating and cooling procedure and a large amount of time consumptions.When owing to power when making structural member to be tightened and threaded connector will use material high-intensity, the weldability difference to make with working state heating power, these costs are necessary especially.
If working state allow to adopt the screw that can weld, it is fairly simple with the locking device of the structural member combination of weldability difference that employing can be welded screw.In the case, but a weld pad circle that engages with the structural member shape is tightened together with structural member, subsequently that this packing ring is welded together with screw head.
The objective of the invention is to further develop the screw check device of the described type of beginning, make it and to guarantee that in simple and economic mode the screw that maybe can not weld of weldability difference and base material can not get loose.
Purpose of the present invention realizes that by following technical solution the sleeve pipe that a cylindrical body wherein is provided with the bottom of a band through hole is arranged in first hole of first structural member; This first hole feeds in the second less hole of first member, and this second hole is provided with left-handed thread, wherein is screwed into a tube-shaped joint, and this tube-shaped joint is arranged on the outside of bottom with one heart with the through hole of bottom; The screw head of screw is located in the sleeve pipe, and screw passes tube-shaped joint and is screwed in second structural member with its right-handed thread; Lid is fixed on the sleeve pipe by means of welding bead, and this lid has an embolism, and this embolism is connected with screw head forming shape convolution.
In addition, the invention has the advantages that screw check device can take off and can not connect and fasten structural elements together cause damage screw.This advantage is adopting high-intensity thereby meaningful especially when being somewhat expensive alloy.
One embodiment of the present of invention schematically are shown in the accompanying drawings.This unique accompanying drawing illustrates the longitudinal sectional view of the screw connection that has the screw check device that does not get loose.Only illustrate among the figure for understanding the significant key element of the present invention.
In this unique accompanying drawing, label 1 is the screw that has an inner hexagonal hole 6c, and this screw tightens together one first structural member 2a with one second structural member 2b, and has a screw check device 9 and guarantee can not get loose.
The first structural member 2a has one first hole 3a and second a hole 3b who is provided with one heart with the first hole 3a.The diameter of the second hole 3b is less than the diameter of the first hole 3a and be provided with left-handed thread 8.Be screwed into a tube-shaped joint 5c in this left-handed thread 8, this tube-shaped joint connects with the bottom 5b of the band through hole of sleeve pipe 5a, a 5b.The internal diameter of tube-shaped joint 5c is equally big with the diameter of the through hole of bottom 5b, and its external diameter is less than the external diameter of bottom 5b.Except the 5b of bottom, sleeve pipe 5a, 5b also include a cylindrical body 5a, and this cylindrical body 5a is supported in the first hole 3a of the first structural member 2a together with bottom 5b.Screw 1 passes sleeve pipe 5a, 5b and tube-shaped joint 5c is tightened in the structural member 2b securely with its right-handed thread 7.In the inner hexagonal hole 6c of screw 1, embed one and form embolism (Nuss) 6b that shape engages, that link to each other with a lid 6a who is sealing sleeve pipe 5a, 5b with it.This lid 6a is not fixed on sleeve pipe 5a, the 5b by means of welding bead with not getting loose.
The screw check device 9 of Chuan Zaoing has shown combinations that power engages, shape various types of locking devices that engage and that do not get loose like this.The right-handed thread 7 of two kinds of screw thread-screws 1 has shown structural member 2a and being connected that the power of 2b engages with the left-handed thread 5d-of tube-shaped joint 5c.The embolism 6b shape that has a lid 6a is seated in the inner hexagonal hole 6c of screw 1 with engaging interior and be not welded on the cylindrical body 5a with its lid with not getting loose.By adopting this lid 6a that has embolism 6b, right-handed thread 7 is fixed with following left-handed thread 8 pluggings.
Such screw check device 9 can have special substance to select the employing Anywhere of requirement to palpus fastening structural member 2a, 2b and screw 1 by operating conditions.Like this, for example face under the situation of high temperature and the mechanical vibration that have warping stress and shearing stress, the fluctuation of status parameter appearance simultaneously at the screw connection set, no matter structural member 2a, 2b to be tightened still is screw 1 all requires to adopt high-strength metallic alloy.These high-strength metallic alloys will cost a lot of money usually under atmospheric conditions and just can weld.But only need use by screw connection set of the present invention at room temperature can easily thereby be the metal alloy that welds at low cost.
Therefore, by the combination of above-mentioned different metal alloy, structural member 2a, 2b and screw 1 desired high strength are connected under the situation of considering Economy with the setting property of the screw check device 9 that does not get loose.Another advantage is that when opening screw check device 9 at welding bead 4 places, structural member 2a, 2b and screw can not be damaged.
Nature, the present invention is not subject to embodiment shown and that describe.The screw check device 9 that does not get loose for example also needs structural member 2a, 2b and screw 1 fastening, that made by nonweldable material applicable to all.By design of the present invention, equally the screw head that can be susceptible to a band outer-hexagonal with a sub-6a with cover have corresponding shape engage in hexagonal counterpart 6b cooperate.
Claims (1)
1. a screw check device that is used for screw (1) that one first structural member (2a) and one second structural member (2b) are tightened together is characterized in that,
-one cylindrical body (5a) wherein is provided with one and is with the sleeve pipe (5a, 5b) of the bottom (5b) of through hole to be arranged in first hole (3a) of first structural member (2a);
-the first hole (3a) feeds in less second hole (3b) of first structural member (2a), this second hole (3b) is provided with left-handed thread (8), wherein be screwed into a tube-shaped joint (5c), this tube-shaped joint is arranged on the outside of bottom with one heart with the through hole of bottom (5b);
The screw head of-screw (1) is located in the sleeve pipe (5a, 5b), and screw (1) passes tube-shaped joint (5c) and is screwed in second structural member (2b) with its right-handed thread (7);
-lid (6a) is fixed on the sleeve pipe (5a, 5b) by means of welding bead (4), and this lid has an embolism (6b), and this embolism is connected with screw head forming shape convolution.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 96122755 CN1153260A (en) | 1995-10-27 | 1996-10-26 | Screw check device |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19540051.8 | 1995-10-27 | ||
| CN 96122755 CN1153260A (en) | 1995-10-27 | 1996-10-26 | Screw check device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1153260A true CN1153260A (en) | 1997-07-02 |
Family
ID=5127430
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 96122755 Pending CN1153260A (en) | 1995-10-27 | 1996-10-26 | Screw check device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1153260A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101968071A (en) * | 2010-09-25 | 2011-02-09 | 海洋王照明科技股份有限公司 | Connecting device |
| CN104884855A (en) * | 2013-05-06 | 2015-09-02 | 罗尔公司 | Attachment system for thermal protection panels |
| CN105220765A (en) * | 2015-10-27 | 2016-01-06 | 哈尔滨工业大学 | Space configuration formula flute profile node structure |
| CN105485134A (en) * | 2016-01-27 | 2016-04-13 | 陈菊芳 | Interlocking type falling-preventing screw for fixing vibration table fixture |
| CN107575463A (en) * | 2017-09-15 | 2018-01-12 | 安徽唐氏螺纹紧固件有限公司 | A kind of stop screw component |
| CN108825632A (en) * | 2018-07-05 | 2018-11-16 | 杭州杭氧膨胀机有限公司 | A kind of protecting casing for preventing screw connection from loosening |
| CN119982200A (en) * | 2023-11-10 | 2025-05-13 | 中国航发商用航空发动机有限责任公司 | Reverse thread self-locking assembly |
-
1996
- 1996-10-26 CN CN 96122755 patent/CN1153260A/en active Pending
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101968071A (en) * | 2010-09-25 | 2011-02-09 | 海洋王照明科技股份有限公司 | Connecting device |
| CN101968071B (en) * | 2010-09-25 | 2013-12-04 | 海洋王照明科技股份有限公司 | Connecting device |
| CN104884855A (en) * | 2013-05-06 | 2015-09-02 | 罗尔公司 | Attachment system for thermal protection panels |
| US10179639B2 (en) | 2013-05-06 | 2019-01-15 | Rohr, Inc. | Attachment system for thermal protection panels |
| CN105220765A (en) * | 2015-10-27 | 2016-01-06 | 哈尔滨工业大学 | Space configuration formula flute profile node structure |
| CN105220765B (en) * | 2015-10-27 | 2017-08-25 | 哈尔滨工业大学 | Space configuration formula flute profile node structure |
| CN105485134A (en) * | 2016-01-27 | 2016-04-13 | 陈菊芳 | Interlocking type falling-preventing screw for fixing vibration table fixture |
| CN107575463A (en) * | 2017-09-15 | 2018-01-12 | 安徽唐氏螺纹紧固件有限公司 | A kind of stop screw component |
| CN108825632A (en) * | 2018-07-05 | 2018-11-16 | 杭州杭氧膨胀机有限公司 | A kind of protecting casing for preventing screw connection from loosening |
| CN119982200A (en) * | 2023-11-10 | 2025-05-13 | 中国航发商用航空发动机有限责任公司 | Reverse thread self-locking assembly |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C01 | Deemed withdrawal of patent application (patent law 1993) | ||
| WD01 | Invention patent application deemed withdrawn after publication |