EP1656240A1 - Doppelmutter zum kontrollierten spannen eines bauteils mittels schraubenverbindung - Google Patents
Doppelmutter zum kontrollierten spannen eines bauteils mittels schraubenverbindungInfo
- Publication number
- EP1656240A1 EP1656240A1 EP04763584A EP04763584A EP1656240A1 EP 1656240 A1 EP1656240 A1 EP 1656240A1 EP 04763584 A EP04763584 A EP 04763584A EP 04763584 A EP04763584 A EP 04763584A EP 1656240 A1 EP1656240 A1 EP 1656240A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- sleeve
- washer
- double nut
- tension
- screw
- 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.)
- Granted
Links
- 239000000463 material Substances 0.000 claims description 4
- 230000006835 compression Effects 0.000 claims 1
- 238000007906 compression Methods 0.000 claims 1
- 230000000694 effects Effects 0.000 description 3
- 230000036316 preload Effects 0.000 description 2
- 239000012530 fluid Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 239000011343 solid material Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B29/00—Accessories
- B25B29/02—Bolt tensioners
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S411/00—Expanded, threaded, driven, headed, tool-deformed, or locked-threaded fastener
- Y10S411/917—Nut having tension feature
Definitions
- the invention relates to a double nut for the controlled clamping of a component by means of screw connections from a tension sleeve with an internal thread that can be screwed onto the threaded end of the screw and an external thread and an screw thread that can be screwed onto the external thread, which is supported on the component sleeve that is to be clamped by means of the screws External thread also serves for screwing on a tension bushing of a hydraulic screw tensioning cylinder and this has a support sleeve which encompasses the pressure sleeve and is also supported on the component to be tensioned by means of the screw connection and which overlaps the tension and pressure sleeve.
- the tension bushing of a hydraulic screw tensioning cylinder is screwed onto the free end of the tensioning sleeve and the screw tensioning cylinder is pressurized.
- the support sleeve is supported on a support surface of the component to be tensioned and stretches the screw so that the pressure sleeve lifts off the support surface.
- the pressure sleeve can now be screwed against the support surface by suitable means, and the collar on the pressure sleeve moves away from the corresponding end of the tension sleeve.
- the lower threads of the tension sleeve are stressed considerably more than the threads in the area of the thread end of the pressure sleeve and limit the preload that can be applied to the screw connection, especially if the wall thickness of the tension sleeve and the pressure sleeve is small in relation to the screw diameter for spatial reasons must be kept. Accordingly, the invention is based on the tasks to design the double nut so that the load distribution on the threads between the tension sleeve and the pressure sleeve is as uniform as possible, to achieve impure material as far as possible with a low wall thickness of the tension sleeve and the pressure sleeve.
- the pressure sleeve and / or the tension sleeve can be turned freely in the area without mutual engagement of their threads ,
- this can also be achieved by arranging a washer under the pressure sleeve which engages around the tension sleeve and on which only the pressure sleeve is supported.
- the height of the washer should at least correspond to the area without mutual thread engagement of the tension sleeve and the pressure sleeve, but can also be greater.
- the tension sleeve can be designed in the area of the washer without an external thread.
- the washer can have a larger diameter than the pressure sleeve in order to be able to apply a sufficiently large pretensioning force to the screw connection even in the case of components to be clamped with low strength.
- the washer can have a countersink with a cylindrical inner surface which closely surrounds a cylindrical outer surface of the pressure sleeve. Furthermore, the washer can also consist of high-strength material, in particular if it has only a height corresponding to a small number of thread turns.
- the washer can adhere magnetically to the pressure sleeve, which can be achieved, for example, either by inserting small permanent magnets into the washer or by making the entire washer permanently magnetic.
- FIG. 1 is a sectional view of a double nut according to the invention with a washer
- Fig. 2 is a sectional view of a double nut according to the invention without a washer and
- Fig. 3 is an illustration of the tension nut of FIG. 1 with attached hydraulic screw tensioning cylinder, partly in section.
- a component 1 to be tensioned is only shown in sections with a contact surface 13 for a pressure sleeve 7 and a bore 12 for a screw 2.
- the screw 2 has a threaded end 3 onto which a tension sleeve 4 with an internal thread 5 is screwed.
- the tension sleeve 5 has an external thread 6 onto which a pressure sleeve 7 with a cylindrical outer surface 16 with a corresponding internal thread 8 is screwed. A part of the external thread 6 is exposed and is used for screwing on a tension bushing 24 of a hydraulic screw tensioning cylinder 18, as is explained below with reference to FIG. 2.
- the pressure sleeve 7 is supported in a cylindrical countersink with an inner surface 17 on a washer 11 and this in turn on the contact surface 13 of the component 1 to be clamped.
- the cylindrical inner surface 17 of the washer 11 closely engages around the cylindrical outer surface 16 of the pressure sleeve 7, thereby largely preventing the pressure sleeve 7 from spreading open in this area under load.
- the washer 11 results in an area of the external thread 6 of the tension sleeve 4, which is not in engagement with the internal thread 8 of the pressure sleeve 7, so that an area 9 without thread grip with the pressure sleeve 7 is present on the pull sleeve 4.
- This area 9 should correspond to at least one thread and is determined, for example, by the height of the washer 11.
- This area 9 can be on the pull sleeve 4 without thread, i.e. turned freely, executed.
- the diameter of the washer 11 can, as shown, be larger than the outer diameter of the pressure sleeve 7 and correspond to the diameter of a countersink 15 with little play.
- a support sleeve 20 of a hydraulic screw tensioning cylinder 18 is supported on the surface of the washer 11, while this support sleeve 20 is supported directly on the contact surface 13 when the outer diameter of the washer 11 is equal to the outer diameter of the pressure sleeve 7 , which is also possible.
- Small permanent magnets 14 are embedded in the washer 11, as a result of which the washer 11 adheres to the pressure sleeve 7 in order to make assembly easier.
- the washer 11 can also be permanently magnetic as a whole, whereby the same effect is achieved.
- the washer 11 is preferably made of a high-strength material, so that a high prestressing of the screw connection can also be achieved with a component made of less solid material.
- the tension sleeve 4 with the pressure sleeve 7 already screwed thereon and the washer 1.1 is first tightened onto the threaded end 3 of the screw 2 until the washer 11 contacts Screwed on component 1.
- an internally threaded pull bushing 24 of a hydraulic screw cylinder 18 is screwed onto the still free part of the external thread 6 of the pulling sleeve 4 until a region of the support sleeve 20 encompassing the pressure sleeve 7 is supported on the washer 11.
- an internal toothing, not shown in detail, of a rotating sleeve 21 comes into contact with a corresponding external toothing 10 or the like on the pressure sleeve 7.
- the hydraulic screw tensioning cylinder 18 is pressurized with hydraulic fluid via a pressure connection 19, the pull bushing 24 pulls on the pulling sleeve 4 , while the support sleeve 20 is supported on the washer 11: As a result, the screw 2 is stretched to the predetermined dimension, which can be read directly, for example, by means of a marking on the draw sleeve.
- the pressure sleeve 7 lifts off the component 1 to be tensioned and can easily be turned in via a rotary drive 22 until it contacts the washer 11. If the hydraulic screw tensioning cylinder is then relieved of pressure, the expansion of the screw 2 is maintained and the hydraulic screw tensioning cylinder 18 can be unscrewed from the tension sleeve 4 and used for a further tensioning process.
- the pressure sleeve 7 can be turned by engaging in the recess 23 by inserting a pin into bores of the pressure sleeve 7, not shown, and rotating the pressure sleeve 7.
- a hydraulic screw tensioning cylinder suitable for tensioning the tension nut from the tension sleeve 4 and the pressure sleeve 7 is described in DE 19638 901 A1 by the same applicant.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Hand Tools For Fitting Together And Separating, Or Other Hand Tools (AREA)
- Bolts, Nuts, And Washers (AREA)
- Mounting Of Bearings Or Others (AREA)
- Clamps And Clips (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10339201A DE10339201B4 (de) | 2003-08-22 | 2003-08-22 | Doppelmutter zum kontrollierten Spannen eines Bauteils mittels Schraubenverbindung |
PCT/EP2004/008477 WO2005021216A1 (de) | 2003-08-22 | 2004-07-29 | Doppelmutter zum kontrollierten spannen eines bauteils mittels schraubenverbindung |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1656240A1 true EP1656240A1 (de) | 2006-05-17 |
EP1656240B1 EP1656240B1 (de) | 2008-10-01 |
Family
ID=34223161
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP04763584A Expired - Lifetime EP1656240B1 (de) | 2003-08-22 | 2004-07-29 | Doppelmutter zum kontrollierten spannen eines bauteils mittels schraubenverbindung |
Country Status (8)
Country | Link |
---|---|
US (1) | US7338240B2 (de) |
EP (1) | EP1656240B1 (de) |
JP (1) | JP4712705B2 (de) |
CN (1) | CN100425408C (de) |
DE (2) | DE10339201B4 (de) |
DK (1) | DK1656240T3 (de) |
ES (1) | ES2313049T3 (de) |
WO (1) | WO2005021216A1 (de) |
Families Citing this family (18)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6610007B2 (en) | 2000-04-03 | 2003-08-26 | Neoguide Systems, Inc. | Steerable segmented endoscope and method of insertion |
US8888688B2 (en) | 2000-04-03 | 2014-11-18 | Intuitive Surgical Operations, Inc. | Connector device for a controllable instrument |
US6858005B2 (en) | 2000-04-03 | 2005-02-22 | Neo Guide Systems, Inc. | Tendon-driven endoscope and methods of insertion |
US8517923B2 (en) | 2000-04-03 | 2013-08-27 | Intuitive Surgical Operations, Inc. | Apparatus and methods for facilitating treatment of tissue via improved delivery of energy based and non-energy based modalities |
US6468203B2 (en) | 2000-04-03 | 2002-10-22 | Neoguide Systems, Inc. | Steerable endoscope and improved method of insertion |
US20050166484A1 (en) * | 2000-11-27 | 2005-08-04 | Richmond Frank M. | Device and method for installing building material |
US8882657B2 (en) | 2003-03-07 | 2014-11-11 | Intuitive Surgical Operations, Inc. | Instrument having radio frequency identification systems and methods for use |
ES2386399T3 (es) * | 2008-11-25 | 2012-08-20 | Jörg Hohmann | Dispositivo de seguridad en una toma de alta presión para un aparato hidráulico. |
DE102013107096A1 (de) * | 2013-07-05 | 2015-01-08 | Ith Gmbh & Co. Kg | Spannvorrichtung zum Dehnen eines Gewindebolzens |
CN105485138B (zh) * | 2014-10-09 | 2019-12-20 | 遵义遵宏螺杆厂 | 一种预紧螺栓组件 |
CN105240378A (zh) * | 2015-11-12 | 2016-01-13 | 珠海格力电器股份有限公司 | 预紧螺母组件、离心风机及空调设备 |
US10605632B2 (en) | 2016-07-01 | 2020-03-31 | Teledyne Scientific & Imaging, Llc | Stackable dual-threaded bushing and spacer assembly |
CN111386400A (zh) | 2017-09-27 | 2020-07-07 | 江森自控科技公司 | 无键叶轮***和方法 |
ES2775069B2 (es) * | 2017-12-27 | 2021-06-23 | Nabrawind Tech Sl | Sistema de control del pretensado de pernos |
CN109605284B (zh) * | 2019-01-31 | 2023-06-06 | 中国工程物理研究院机械制造工艺研究所 | 一种螺栓预紧拉伸装置及方法 |
US12017332B2 (en) | 2020-03-25 | 2024-06-25 | Milwaukee Electric Tool Corporation | Bolt tensioning tool |
US11592054B1 (en) * | 2021-01-04 | 2023-02-28 | Zoltan A. Kemeny | Bolts and bolt and nut fasteners |
CN112959268A (zh) * | 2021-04-12 | 2021-06-15 | 广州海恩能源技术有限公司 | 一种液压拉伸式紧固装置 |
Family Cites Families (19)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1172885A (en) * | 1966-05-20 | 1969-12-03 | Wirth Alfred & Co Kg | Improvements relating to Pumps |
JPS4850750U (de) * | 1971-10-18 | 1973-07-03 | ||
SE401027B (sv) * | 1976-02-05 | 1978-04-17 | Chris Marin | Anordning av bultforband |
CH610803A5 (en) * | 1976-05-13 | 1979-05-15 | Sulzer Ag | Tightening device for tightening a screw bolt |
AU528061B2 (en) * | 1979-05-16 | 1983-04-14 | CSN Pty Limited | 3 part hydraulic assisted locking not |
US4844418A (en) * | 1987-03-02 | 1989-07-04 | Westinghouse Electric Corp. | Short stud tensioning apparatus |
GB8823474D0 (en) * | 1988-10-06 | 1988-11-16 | Hedley Purvis Ltd | Improved hydraulic tensioner |
JP2681416B2 (ja) * | 1990-08-17 | 1997-11-26 | ジョーン ケイ ジャンカーズ | 緊締装置 |
US5253967A (en) * | 1991-11-08 | 1993-10-19 | Biach Industries | Adapter assembly for tensioning threaded fasteners and method of tensioning threaded fasteners |
GB2274892B (en) * | 1993-02-05 | 1995-08-09 | Hydra Tight Ltd | Spacer washer for bolted joint |
US5538379A (en) * | 1995-02-15 | 1996-07-23 | Junkers John K | Mechanical tensioner for and method of elongating and relaxing a stud and the like |
UA45310C2 (uk) * | 1995-06-13 | 2002-04-15 | К. Юнкерс Джон | Гідравлічний пристрій натягування болтів |
DE19524959C2 (de) * | 1995-07-08 | 1997-04-24 | Hohmann Joerg | Meßeinrichtung für die Dehnung eines mittels einer Mutter gespannten Gewindebolzens oder einer Schraube |
DE19638901C2 (de) * | 1996-09-23 | 2000-05-25 | Joerg Hohmann | Hydraulische Gewindebolzenspannvorrichtung |
DE19847974C2 (de) | 1998-10-17 | 2000-10-26 | Toge Duebel A Gerhard Kg | Montageelement mit magnetischer Beilagscheibe |
FR2790798B1 (fr) * | 1999-03-12 | 2001-06-01 | Jeumont Ind | Dispositif de tension pour le serrage ou le desserage d'un element de liaison filete |
US6461093B1 (en) * | 2000-09-05 | 2002-10-08 | John K. Junkers | Threaded fastener |
US6686527B2 (en) * | 2001-06-11 | 2004-02-03 | Yamaha Corporation | Tightening frame for a drum |
US6685406B2 (en) * | 2001-10-30 | 2004-02-03 | Riverhawk Company | Perforated nut tensioning system |
-
2003
- 2003-08-22 DE DE10339201A patent/DE10339201B4/de not_active Expired - Lifetime
-
2004
- 2004-07-29 DE DE502004008165T patent/DE502004008165D1/de not_active Expired - Lifetime
- 2004-07-29 ES ES04763584T patent/ES2313049T3/es not_active Expired - Lifetime
- 2004-07-29 JP JP2006524251A patent/JP4712705B2/ja not_active Expired - Lifetime
- 2004-07-29 US US10/569,355 patent/US7338240B2/en not_active Expired - Lifetime
- 2004-07-29 EP EP04763584A patent/EP1656240B1/de not_active Expired - Lifetime
- 2004-07-29 CN CNB2004800241708A patent/CN100425408C/zh not_active Expired - Lifetime
- 2004-07-29 DK DK04763584T patent/DK1656240T3/da active
- 2004-07-29 WO PCT/EP2004/008477 patent/WO2005021216A1/de active IP Right Grant
Non-Patent Citations (1)
Title |
---|
See references of WO2005021216A1 * |
Also Published As
Publication number | Publication date |
---|---|
US20070020061A1 (en) | 2007-01-25 |
DE10339201B4 (de) | 2005-07-21 |
JP2007503557A (ja) | 2007-02-22 |
DE10339201A1 (de) | 2005-03-31 |
CN1839016A (zh) | 2006-09-27 |
DK1656240T3 (da) | 2009-02-02 |
DE502004008165D1 (de) | 2008-11-13 |
ES2313049T3 (es) | 2009-03-01 |
WO2005021216A1 (de) | 2005-03-10 |
JP4712705B2 (ja) | 2011-06-29 |
CN100425408C (zh) | 2008-10-15 |
EP1656240B1 (de) | 2008-10-01 |
US7338240B2 (en) | 2008-03-04 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP1656240A1 (de) | Doppelmutter zum kontrollierten spannen eines bauteils mittels schraubenverbindung | |
DE3640668A1 (de) | Doppelmutter | |
DE2755674A1 (de) | Befestigungsvorrichtung | |
DD255766A5 (de) | Demontierbares verbindungsteil | |
DE3524558C2 (de) | ||
DE4006028C2 (de) | Verbindungsbolzen und Anordnung aus Komponenten | |
DE29825269U1 (de) | Rohrschelle mit Durchstoß-Mutter | |
EP0807702A1 (de) | Einrichtung zum Befestigen eines Körpers und Schafttrieb mit einer derartigen Einrichtung | |
DE3715204C2 (de) | ||
DE102009005336A1 (de) | Schraubenelement, Schraubverbindung sowie Verfahren zum Herstellen eines Schraubenelementes | |
DE19611805C2 (de) | Bolzenverbindung | |
DE202005005501U1 (de) | Schnellspannmutter | |
AT521975B1 (de) | Mechanisches Verbindungsbauteil mit Druckindikator | |
DE10221773B4 (de) | Griff mit mindestens einem Halsteil und mit einer Befestigungsvorrichtung je Halsteil | |
DE3344240A1 (de) | Mutter | |
DE9422337U1 (de) | Verbindung zwischen Möbelbeinen | |
EP1096158A2 (de) | Klemmbefestigung | |
DE4142034A1 (de) | Schraube | |
EP0933854A1 (de) | Wanddurchführung zum Einsetzen in ein durch eine Mauer hindurchführendes Durchgangsloch | |
DE4329044A1 (de) | Klemmkörper mit Verstiftelement | |
DE20019722U1 (de) | Befestigungsvorrichtung | |
DE3531014A1 (de) | Klemme fuer einen elektrischen anschluss | |
DE20218204U1 (de) | Halterung für Magnetfeldsensoren | |
DE10309792A1 (de) | Maschinenelement | |
WO2023194038A1 (de) | Modul für ein fahrrad, bausatz für ein fahrrad und fahrrad |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
17P | Request for examination filed |
Effective date: 20060216 |
|
AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): CH DE DK ES FR GB LI |
|
DAX | Request for extension of the european patent (deleted) | ||
RBV | Designated contracting states (corrected) |
Designated state(s): CH DE DK ES FR GB LI |
|
GRAP | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOSNIGR1 |
|
GRAS | Grant fee paid |
Free format text: ORIGINAL CODE: EPIDOSNIGR3 |
|
GRAA | (expected) grant |
Free format text: ORIGINAL CODE: 0009210 |
|
AK | Designated contracting states |
Kind code of ref document: B1 Designated state(s): CH DE DK ES FR GB LI |
|
REG | Reference to a national code |
Ref country code: GB Ref legal event code: FG4D Free format text: NOT ENGLISH |
|
REG | Reference to a national code |
Ref country code: CH Ref legal event code: EP |
|
REF | Corresponds to: |
Ref document number: 502004008165 Country of ref document: DE Date of ref document: 20081113 Kind code of ref document: P |
|
REG | Reference to a national code |
Ref country code: DK Ref legal event code: T3 |
|
REG | Reference to a national code |
Ref country code: ES Ref legal event code: FG2A Ref document number: 2313049 Country of ref document: ES Kind code of ref document: T3 |
|
PLBE | No opposition filed within time limit |
Free format text: ORIGINAL CODE: 0009261 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT |
|
26N | No opposition filed |
Effective date: 20090702 |
|
REG | Reference to a national code |
Ref country code: ES Ref legal event code: FD2A Effective date: 20090730 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: ES Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20090730 |
|
REG | Reference to a national code |
Ref country code: DE Ref legal event code: R082 Ref document number: 502004008165 Country of ref document: DE Representative=s name: BUNGARTZ CHRISTOPHERSEN PARTNERSCHAFT MBB PATE, DE |
|
REG | Reference to a national code |
Ref country code: FR Ref legal event code: PLFP Year of fee payment: 13 |
|
REG | Reference to a national code |
Ref country code: FR Ref legal event code: PLFP Year of fee payment: 14 |
|
REG | Reference to a national code |
Ref country code: FR Ref legal event code: PLFP Year of fee payment: 15 |
|
REG | Reference to a national code |
Ref country code: DE Ref legal event code: R082 Ref document number: 502004008165 Country of ref document: DE Representative=s name: JANKE SCHOLL PATENTANWAELTE PARTG MBB, DE |
|
P01 | Opt-out of the competence of the unified patent court (upc) registered |
Effective date: 20230530 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: GB Payment date: 20230719 Year of fee payment: 20 Ref country code: CH Payment date: 20230802 Year of fee payment: 20 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: FR Payment date: 20230725 Year of fee payment: 20 Ref country code: DK Payment date: 20230721 Year of fee payment: 20 Ref country code: DE Payment date: 20230719 Year of fee payment: 20 |