EP1656240B1 - Doppelmutter zum kontrollierten spannen eines bauteils mittels schraubenverbindung - Google Patents

Doppelmutter zum kontrollierten spannen eines bauteils mittels schraubenverbindung Download PDF

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Publication number
EP1656240B1
EP1656240B1 EP04763584A EP04763584A EP1656240B1 EP 1656240 B1 EP1656240 B1 EP 1656240B1 EP 04763584 A EP04763584 A EP 04763584A EP 04763584 A EP04763584 A EP 04763584A EP 1656240 B1 EP1656240 B1 EP 1656240B1
Authority
EP
European Patent Office
Prior art keywords
sleeve
washer
double nut
screw
nut according
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.)
Expired - Lifetime
Application number
EP04763584A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP1656240A1 (de
Inventor
Jörg Hohmann
Frank Hohmann
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of EP1656240A1 publication Critical patent/EP1656240A1/de
Application granted granted Critical
Publication of EP1656240B1 publication Critical patent/EP1656240B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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 in combination with a hydraulic bolt tensioning cylinder for controlled clamping of a component by means of screw connections, from a tension sleeve with a screwed onto the threaded end of a screw, extending over the entire length of the tension sleeve and over its entire length with the threaded end of the screw in To be brought to internal thread and also extending over the entire length of the tension sleeve external thread, a screwed onto the external thread, on the means of the screw connection to exciting component supporting pressure sleeve, the external thread also serves to screw a pull bushing of the hydraulic screw tensioning cylinder and the hydraulic Bolt tensioning cylinder has a pressure sleeve encompassing, also on the means of the screw to exciting part supporting, the tension and the pressure sleeve cross-supporting sleeve.
  • the tension sleeve is provided with an internal thread and an external thread, which extend over its entire length.
  • the pressure sleeve is screwed with its internal thread on the external thread of the tension sleeve, wherein the internal thread of the pressure sleeve also extends over its entire length and the internal thread of the tension sleeve over its entire length is in engagement with the thread of the screw.
  • the pull bushing of a hydraulic bolt tensioning cylinder is screwed onto the free end of the tension sleeve and the bolt tensioning cylinder is pressurized.
  • the support sleeve is supported on a support surface of the component to be clamped and expands the screw, so that the pressure sleeve lifts from the support surface.
  • the pressure sleeve can be screwed by suitable means against the support surface, 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 much more heavily loaded than the threads in the region of the threaded end of the pressure sleeve and limit applicable to the screw connection bias, especially if the wall thickness of the tension sleeve and the pressure sleeve for reasons of space in relation to the screw diameter must be kept small.
  • the invention has for its object to make the double nut so that a uniform as possible load distribution results on the threads between the tension sleeve and the pressure sleeve to achieve the widest possible material utilization with a small wall thickness of the tension sleeve and the pressure sleeve.
  • the internal thread of the pressure sleeve engages in the external thread of the tension sleeve with the aforementioned distance of several threads of the end facing the tensioning component end of the tension sleeve, the internal thread of the pressure sleeve in the area without mutual engagement of the thread of tension and pressure sleeve be turned free.
  • this can also be achieved by a washer is disposed under the pressure sleeve, which surrounds the tension sleeve and on which only the pressure sleeve is supported.
  • the height of the washer should at least equal to the area without mutual thread engagement of the tension sleeve and the pressure sleeve, but may also be larger.
  • the washer may have a larger diameter than the pressure sleeve to be able to apply a sufficiently large biasing force on the screw connection even with components to be clamped with low strength.
  • the washer may have a countersink having a cylindrical inner surface which closely encloses a cylindrical outer surface of the pressure sleeve.
  • the washer can also be made of high-strength material, especially if it has only one height corresponding to a small number of threads.
  • the washer can adhere magnetically to the pressure sleeve, which can be achieved, for example, either by placing small permanent magnets in the washer or by the fact that the entire washer is permanently magnetic.
  • Too exciting a component 1 is only partially shown 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, on which a tension sleeve 4 is screwed with an internal thread 5
  • the tension sleeve 4 has an external thread 6, on which a pressure sleeve 7 is screwed with a cylindrical outer surface 16 with a corresponding internal thread 8.
  • a portion of the male thread 6 is exposed and serves to screw a Wegbuchse 24 a hydraulic screw tensioning cylinder 18, as described below with reference to FIG. 3 is explained.
  • the pressure sleeve 7 is supported in a cylindrical counterbore with an inner surface 17 on a washer 11 and this in turn on the contact surface 13 of the component to be clamped 1 from.
  • the cylindrical inner surface 17 of the washer 11 engages closely around the cylindrical outer surface 16 of the pressure sleeve 7, whereby a spreading of the pressure sleeve 7 is largely prevented under load in this area.
  • This area 9 should correspond to several threads and is determined for example by the height of the washer 11.
  • the diameter of the washer 11 may, as shown, be greater than the An Inc., the pressure sleeve 7 and with a small clearance equal to the diameter of a countersink 15.
  • the washer 11 may also be permanently magnetic as a whole, whereby the same effect is achieved.
  • the washer 11 is made of a high-strength material, so that it is possible to achieve a high bias of the screw connection even with a component made of less solid material.
  • the pressure sleeve 7 can be turned by engaging in the recess 23 by inserting a pin into not shown bores of the pressure sleeve 7 and rotating the pressure sleeve 7.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Hand Tools For Fitting Together And Separating, Or Other Hand Tools (AREA)
  • Mounting Of Bearings Or Others (AREA)
  • Bolts, Nuts, And Washers (AREA)
  • Clamps And Clips (AREA)
EP04763584A 2003-08-22 2004-07-29 Doppelmutter zum kontrollierten spannen eines bauteils mittels schraubenverbindung Expired - Lifetime EP1656240B1 (de)

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 EP1656240A1 (de) 2006-05-17
EP1656240B1 true 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 (da)
EP (1) EP1656240B1 (da)
JP (1) JP4712705B2 (da)
CN (1) CN100425408C (da)
DE (2) DE10339201B4 (da)
DK (1) DK1656240T3 (da)
ES (1) ES2313049T3 (da)
WO (1) WO2005021216A1 (da)

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8888688B2 (en) 2000-04-03 2014-11-18 Intuitive Surgical Operations, Inc. Connector device for a controllable instrument
US6468203B2 (en) 2000-04-03 2002-10-22 Neoguide Systems, Inc. Steerable endoscope and improved method 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
US6610007B2 (en) 2000-04-03 2003-08-26 Neoguide Systems, Inc. Steerable segmented endoscope and method of insertion
US6858005B2 (en) 2000-04-03 2005-02-22 Neo Guide Systems, Inc. Tendon-driven endoscope and methods 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
ATE556268T1 (de) * 2008-11-25 2012-05-15 Joerg Hohmann Sicherheitseinrichtung an einem hochdruckanschluss für ein hydraulikgerät
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
JP7104781B2 (ja) * 2017-09-27 2022-07-21 ジョンソン コントロールズ テクノロジー カンパニー キーレスインペラシステム及び方法
CN111526968B (zh) * 2017-12-27 2022-04-29 纳布拉温德科技有限公司 用于控制螺栓预张紧的系统
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
WO2021195409A1 (en) 2020-03-25 2021-09-30 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)

* Cited by examiner, † Cited by third party
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 (da) * 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
EP0500814A4 (en) * 1990-08-17 1992-11-19 John K. Junkers Fastening device
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

Also Published As

Publication number Publication date
CN100425408C (zh) 2008-10-15
US7338240B2 (en) 2008-03-04
DK1656240T3 (da) 2009-02-02
DE10339201B4 (de) 2005-07-21
JP4712705B2 (ja) 2011-06-29
WO2005021216A1 (de) 2005-03-10
ES2313049T3 (es) 2009-03-01
DE10339201A1 (de) 2005-03-31
US20070020061A1 (en) 2007-01-25
CN1839016A (zh) 2006-09-27
DE502004008165D1 (de) 2008-11-13
EP1656240A1 (de) 2006-05-17
JP2007503557A (ja) 2007-02-22

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