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CN102207124A - Flexile technical quick-change adapting piece and connection method - Google Patents

Flexile technical quick-change adapting piece and connection method Download PDF

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Publication number
CN102207124A
CN102207124A CN 201110132630 CN201110132630A CN102207124A CN 102207124 A CN102207124 A CN 102207124A CN 201110132630 CN201110132630 CN 201110132630 CN 201110132630 A CN201110132630 A CN 201110132630A CN 102207124 A CN102207124 A CN 102207124A
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CN
China
Prior art keywords
screw rod
bellows
locking nut
connecting screw
section
Prior art date
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Granted
Application number
CN 201110132630
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Chinese (zh)
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CN102207124B (en
Inventor
韦红余
陈文亮
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Nanjing University of Aeronautics and Astronautics
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Nanjing University of Aeronautics and Astronautics
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Priority to CN 201110132630 priority Critical patent/CN102207124B/en
Publication of CN102207124A publication Critical patent/CN102207124A/en
Application granted granted Critical
Publication of CN102207124B publication Critical patent/CN102207124B/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The invention provides a flexile technical quick-change adapting piece and a connection method, belonging to the technical field of adapting pieces. The flexile technical quick-change adapting piece comprises a connecting screw rod (1), a corrugated pipe (2) and a high-locking nut (3), wherein the connecting screw rod (1) is successively composed of a bolt head (11), a screw rod (12) and a threaded section (13); the high-locking nut (3) is successively composed of a nut section and a screwing end socket (32), wherein the nut section is composed of an aperture section and a threaded section (31); a compression table (33) is arranged between the aperture section and the threaded section; when the high-locking nut (3) is screwed, one end of the corrugated pipe (2) extends into the aperture section of the high-locking nut (3); and the corrugated pipe (2) is compressed by the compression table (33) on the inner wall of the nut section for radial expansion so as to perform the action of tight coupling. When the adapting piece is damaged and loses efficacy, the adapting piece can be quickly repaired by replacing the corrugated pipe (2).

Description

Quick change flexible technology link and connecting means
Technical field
The present invention is a kind of quick change flexible technology link and the connecting means of new design, is applicable to that airplane component connects, the aircraft composite material connects and the connection and the sealing of other products.
Background technique
Usually aircraft skin and relevant connection are all adopted riveted joint, are spirally connected and Placement such as splicing.The riveted joint mode belongs to not detachable connection, having operating procedure grasps easily, quality is convenient to advantages such as inspection, but structurally or on producing all there are some shortcomings in clinching method, and is low as fatigue behaviour, the riveted seam sealing is poor, working condition is poor, damage and be difficult for repairing etc.It is a kind of detachable connection of extensively adopting on the airframe that bolt connects, and its characteristics are simple to operate, and the control of pretightening force has strict demand, but the conventional bolt connection can not be satisfied the demanding structure position of antifatigue, and there is certain slit in connection.It is not detachable equally to glued joint connection, and the primary load bearing position is difficult for meeting the demands.Comprehensive these Placements often exist reliability relatively poor, treat characteristics such as connected element is had relatively high expectations, fatigue performance is poor, sealing is relatively poor, these are all restricting the performance and the life-span of aircraft.
Summary of the invention
The object of the present invention is to provide a kind of simple in structure, good airproof performance, connection is firm, fatigue performance is strong and flexible detachable the quick change flexible technology link and the connecting means of fast changeable.
A kind of quick change flexible technology link is characterized in that: comprise connecting screw rod, bellows and Closely locking nut; Wherein connecting screw rod is made up of bolt head, screw rod, thread section successively; Wherein by nut segment with tighten the termination and form, wherein be made up of unthreaded hole section and thread section, wherein has the compression platform between unthreaded hole section and the thread section by nut segment by successively for Closely locking nut; Wherein bellows is placed in and forms supporting connecting rod on the connecting screw rod; The thread section of Closely locking nut and the thread section of connecting screw rod are supporting; Bellows one end stretches in the unthreaded hole section of Closely locking nut when tightening Closely locking nut, and bellows will be subjected to the compression platform compression radial expansion on the nut segment inwall, reach the effect of being tightly connected; Before the compression above-mentioned bellows and connecting screw rod radially between, and all there is the gap in attachment hole between radially.
The connecting means of above-mentioned quick change flexible technology link is characterized in that: bellows is placed in forms supporting connecting rod on the connecting screw rod, supporting connecting rod is placed in the hole to be connected; Closely locking nut and connecting screw rod are supporting, and bellows one end stretches in the unthreaded hole section of Closely locking nut spacingly when tightening Closely locking nut, and is subjected to compression platform compression radial expansion on the nut segment inwall, reaches the effect of being tightly connected; The adjusting Closely locking nut can change the degrees of expansion of bellows, to regulate the degree of tightness that connects; When Damage and Failure appears in link, can reach quick reparation by changing bellows.
There is the gap between above-mentioned bellows and connecting screw rod, is convenient to satisfy the compression-expansion requirement.There is the gap between above-mentioned bellows and structure hole to be connected, is used to satisfy compression-expansion and seal request.Above-mentioned supporting bellows is placed on the connecting bolt screw rod, is placed in the member apertures to be connected, tightens Closely locking nut, makes bellows be subjected to compression swelling, reaches the purpose that is tightly connected.This inventive principle and EXPANSION ANCHOR BOLTS are similar, have overcome single riveted joint or bolted shortcoming, and have riveted joint and bolted advantage, and the following characteristics that have: (1) fatigue performance is strong, good stability.(2) use simply, applied widely.What (3) it can realize producing and keep in repair carries out fast, and maintenance only needs to change bellows and can realize (damage appears at bellows usually), improves productivity effect.(4) it can realize designing production as required, is used for the connection of different connected element different sizes, and designability is strong, and specification is varied.(5) it can realize the repeated use of connecting screw rod and Closely locking nut, economizes on resources, and reduces cost.
The thread section termination of above-mentioned connecting screw rod can be provided with the inner polygon hole, such as interior hexagonal hole; Be used in use connecting screw rod being carried out lashing force and apply, the restriction connecting screw rod rotates.
The bolt head of above-mentioned connecting screw rod can be various ways such as round end, countersunk head, can satisfy the connection of multiple well format;
Above-mentioned connecting screw rod thread section length can be selected according to structural thickness to be connected; Above-mentioned connecting screw rod diameter can be selected according to connecting aperture, bellows specification and join strength.
At the connection request of different apertures and hole depth, adopt the bellows of different length, expansion joint geometrical shape pattern, bellows wall thickness or the pitch of waves to get final product.
Description of drawings
Fig. 1 is a quick change flexible technology link example stereogram;
Fig. 2 is a quick change flexible technology link connecting screw rod example stereogram;
Fig. 3 is a quick change flexible technology link Closely locking nut example stereogram;
Among the figure: the 1-connecting screw rod, the 2-bellows, the 3-Closely locking nut, the 11-bolt head, the 12-screw rod, the 13-thread section, 14-inner polygon hole, the 31-thread section, 32-tightens the termination, and 33-compresses platform.
Embodiment
As shown in Figure 1, a kind of quick change flexible technology link that is used for the Flight Vehicle Structure connection comprises connecting screw rod 1, bellows 2, Closely locking nut 3.Described bellows 2 is placed on the connecting screw rod 1, and they are placed in the structure hole to be connected, tightens the degrees of expansion of Closely locking nut 3 can regulate bellowss, reaches the purpose that is tightly connected.Change bellows length, expansion joint geometrical shape pattern, bellows wall thickness or the pitch of waves and can be used for multi-form connection.
Quick change flexible technology link working procedure is as follows:
(1) according to the geomery and the performance requirement of component to be connected, selected each parameter that connects.
1) at first selects to satisfy the bellows 2 of performance requirement according to the pore size of component to be connected and the degree of depth and performance requirement.The outer diameter D of bellows is less than to be connected aperture D 1, the depth of convolution COEFFICIENT K of the selected bellows ratio of inner diameter d (the outside diameter of bel D with) can draw the inner diameter d of bellows thus.The length L of bellows is determined by hole depth to be connected.Bellows length meets the following conditions:
L 0?<?L?<(L 0+L 1
L wherein 0Be hole depth to be connected, L 1Be the displacement of bellows maximum compression.
2) selected connecting screw rod 1 each dimensional parameters.Bolt head (the l of connecting screw rod 1 1) can select various ways such as round end, countersunk head, spiro rod section (1 according to the form in hole 2) diameter d 1Less than the inner diameter d of bellows, the spiro rod section length L 2Be equivalent to or be slightly larger than hole depth L 0
3) selected Closely locking nut 3.Closely locking nut 3 is supporting with connecting screw rod 1, and the width of its compression platform 33 should be slightly larger than the bellows wall thickness, tightens termination 32 in order to apply lashing force, regulates lashing force and can change the bellows compression degree, can change the join strength of linkage structure.
(2) use of quick change flexible technology link
Bellows 2 is placed on the screw rod 12 of connecting screw rod 1, their combination is placed in the component to be connected hole, tightening Closely locking nut 3 makes bellows 2 be subjected to compression swelling, before tightening Closely locking nut 3, need interior hexagonal hole with the fixedly connected screw rod of hexagon wrench, be used to carry out lashing force when applying, restriction connecting screw rod (1) rotates.Tighten Closely locking nut and contact with to be connected plane until the lower flat of Closely locking nut, this moment, the compression of bellows was finished.
(3) replacing of quick change flexible technology link and maintenance.
When connecting appearance inefficacy damage, damage generally appearing on the bellows 2.Closely locking nut 3 is backed out, with push rod connecting screw rod 1 and bellows 2 are ejected towards bolt head 11 directions then, change corresponding bellows then,, can finish replacing and maintenance that the high lock of quick change connects again according to the step 2 operation.

Claims (5)

1. quick change flexible technology link is characterized in that:
Comprise connecting screw rod (1), bellows (2) and Closely locking nut (3);
Wherein connecting screw rod (1) is made up of bolt head (11), screw rod (12), thread section (13) successively;
Wherein by nut segment with tighten termination (32) and form, wherein be made up of unthreaded hole section and thread section (31), wherein has compression platform (33) between unthreaded hole section and the thread section by nut segment by successively for Closely locking nut (3);
Wherein bellows (2) is placed in connecting screw rod (1) and goes up composition supporting connecting rod (12); The thread section (31) of Closely locking nut (3) is supporting with the thread section (13) of connecting screw rod (1);
Bellows (2) one ends stretch in the unthreaded hole section of Closely locking nut (3) when tightening Closely locking nut (3), and bellows (2) will be subjected to compression platform (33) the compression radial expansion on the nut segment inwall, reach the effect of being tightly connected; Before the compression above-mentioned bellows (2) and connecting screw rod (1) radially between, and all there is the gap in attachment hole between radially.
2. quick change flexible technology link according to claim 1 is characterized in that: thread section (13) termination of above-mentioned connecting screw rod (1) is provided with inner polygon hole (14).
3. the connecting means of quick change flexible technology link according to claim 1 is characterized in that:
Bellows (2) is placed in connecting screw rod (1) and goes up composition supporting connecting rod (12), and supporting connecting rod (12) is placed in the hole to be connected;
Closely locking nut (3) is supporting with connecting screw rod (1), bellows (2) one ends stretch in the unthreaded hole section of Closely locking nut (3) spacing when tightening Closely locking nut (3), and be subjected to the compression platform (33) on the nut segment inwall to compress radial expansion, reach the effect of being tightly connected; Adjusting Closely locking nut (3) can change the degrees of expansion of bellows (2), to regulate the degree of tightness that connects;
When Damage and Failure appears in link, can reach quick reparation by changing bellows (2).
4. quick change flexible technology according to claim 3 connecting means is characterized in that: thread section (13) termination of above-mentioned connecting screw rod (1) is provided with inner polygon hole (14); Be used in use connecting screw rod (1) being carried out lashing force and apply, restriction connecting screw rod (1) rotates.
5. quick change flexible technology according to claim 3 connecting means is characterized in that:
At the connection request of different apertures and hole depth, adopt the bellows of different length, expansion joint geometrical shape pattern, bellows wall thickness or the pitch of waves to get final product.
CN 201110132630 2011-05-23 2011-05-23 Flexile technical quick-change adapting piece and connection method Expired - Fee Related CN102207124B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 201110132630 CN102207124B (en) 2011-05-23 2011-05-23 Flexile technical quick-change adapting piece and connection method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 201110132630 CN102207124B (en) 2011-05-23 2011-05-23 Flexile technical quick-change adapting piece and connection method

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CN102207124A true CN102207124A (en) 2011-10-05
CN102207124B CN102207124B (en) 2013-01-23

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102756624A (en) * 2012-07-25 2012-10-31 奇瑞汽车股份有限公司 Pintle hook
CN102966044A (en) * 2012-12-05 2013-03-13 山东省路桥集团有限公司 Load-bearing lifting frame equipment
CN111481001A (en) * 2020-03-18 2020-08-04 合肥美的电冰箱有限公司 Shelf device and storage cabinet
CN114645131A (en) * 2022-03-21 2022-06-21 温州为尚机械有限公司 Die assembly for controlling heat treatment deformation of bearing ring
TWI825971B (en) * 2022-09-01 2023-12-11 樹德科技大學 Wall device capable of replacing object

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5224806A (en) * 1992-01-03 1993-07-06 Avibank Mfg., Inc. Adjustable diameter bolt assembly
US5702214A (en) * 1996-11-07 1997-12-30 Avibank Mfg., Inc. Non-removable structural fastener assembly
CN202056171U (en) * 2011-05-23 2011-11-30 南京航空航天大学 Rapidly-replaced flexible process connecting piece

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5224806A (en) * 1992-01-03 1993-07-06 Avibank Mfg., Inc. Adjustable diameter bolt assembly
US5702214A (en) * 1996-11-07 1997-12-30 Avibank Mfg., Inc. Non-removable structural fastener assembly
CN202056171U (en) * 2011-05-23 2011-11-30 南京航空航天大学 Rapidly-replaced flexible process connecting piece

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102756624A (en) * 2012-07-25 2012-10-31 奇瑞汽车股份有限公司 Pintle hook
CN102756624B (en) * 2012-07-25 2015-04-29 奇瑞汽车股份有限公司 Pintle hook
CN102966044A (en) * 2012-12-05 2013-03-13 山东省路桥集团有限公司 Load-bearing lifting frame equipment
CN111481001A (en) * 2020-03-18 2020-08-04 合肥美的电冰箱有限公司 Shelf device and storage cabinet
US12096851B2 (en) 2020-03-18 2024-09-24 Hefei Midea Refrigerator Co., Ltd. Shelf device and storage cabinet
CN114645131A (en) * 2022-03-21 2022-06-21 温州为尚机械有限公司 Die assembly for controlling heat treatment deformation of bearing ring
CN114645131B (en) * 2022-03-21 2023-12-05 温州为尚机械有限公司 Compression molding device for controlling heat treatment deformation of bearing ring
TWI825971B (en) * 2022-09-01 2023-12-11 樹德科技大學 Wall device capable of replacing object

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