EP0484930A1 - Extracteur pour axes de jonction - Google Patents

Extracteur pour axes de jonction Download PDF

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Publication number
EP0484930A1
EP0484930A1 EP91118947A EP91118947A EP0484930A1 EP 0484930 A1 EP0484930 A1 EP 0484930A1 EP 91118947 A EP91118947 A EP 91118947A EP 91118947 A EP91118947 A EP 91118947A EP 0484930 A1 EP0484930 A1 EP 0484930A1
Authority
EP
European Patent Office
Prior art keywords
bell
setting
pulling device
threaded
threaded spindle
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
Application number
EP91118947A
Other languages
German (de)
English (en)
Other versions
EP0484930B1 (fr
Inventor
Werner O.Ing. Bantle
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.)
MAN GHH Logistics GmbH
Original Assignee
MAN GHH Logistics GmbH
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 MAN GHH Logistics GmbH filed Critical MAN GHH Logistics GmbH
Publication of EP0484930A1 publication Critical patent/EP0484930A1/fr
Application granted granted Critical
Publication of EP0484930B1 publication Critical patent/EP0484930B1/fr
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
    • B25B27/00—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for
    • B25B27/02—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for connecting objects by press fit or detaching same
    • B25B27/023—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for connecting objects by press fit or detaching same using screws
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C23/00—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes
    • B66C23/18—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes specially adapted for use in particular purposes
    • B66C23/26—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes specially adapted for use in particular purposes for use on building sites; constructed, e.g. with separable parts, to facilitate rapid assembly or dismantling, for operation at successively higher levels, for transport by road or rail
    • B66C23/28—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes specially adapted for use in particular purposes for use on building sites; constructed, e.g. with separable parts, to facilitate rapid assembly or dismantling, for operation at successively higher levels, for transport by road or rail constructed to operate at successively higher levels
    • B66C23/283—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes specially adapted for use in particular purposes for use on building sites; constructed, e.g. with separable parts, to facilitate rapid assembly or dismantling, for operation at successively higher levels, for transport by road or rail constructed to operate at successively higher levels with frameworks composed of assembled elements
    • B66C23/286—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes specially adapted for use in particular purposes for use on building sites; constructed, e.g. with separable parts, to facilitate rapid assembly or dismantling, for operation at successively higher levels, for transport by road or rail constructed to operate at successively higher levels with frameworks composed of assembled elements with locking devices

Definitions

  • the invention relates to a setting and pulling device for connecting bolts separable construction units, in particular tower units of a tower crane.
  • the frame structure of the tower of a construction crane usually consists of several tower units, the vertically extending corner posts of which are detachably coupled by bolt connections.
  • the ends of the corner posts to be connected are provided in pairs with pegs or peg receiving sleeves which are inserted into one another during the assembly of the tower units.
  • the pegs and peg receiving sleeves are provided with mutually aligned, continuous and equal-diameter fitting openings, into which a cylindrical firing pin can be driven.
  • the firing pin transmits essentially all of the forces between the corner posts and accordingly typically has a diameter of several centimeters, for example seven centimeters, with a length of thirty centimeters and more.
  • the firing pin since the firing pin sits in the fitting openings of the pegs and peg receiving sleeves of the corner posts with a very tight fit, on the one hand, it must be hammered in when installing the crane with a heavy impact device.
  • the firing pin tends to stick due to rust, especially fretting corrosion.
  • the considerable size of the firing pin makes it difficult to start. Hitting and firing the firing pin with large sledgehammers is physically demanding and causes considerable noise.
  • Such a setting and pulling device is placed with its support bell over the fitting opening assigned to the striking or connecting bolt and the coupling head of the threaded spindle is connected to the bolt.
  • the bolt is removed from the support bells when setting Pulled into the fitting opening or pulled into the bell interior when pulling out of the fitting opening. If the bolt is stuck, not all of the tensile force has to be applied by the setting and pulling device; it is sufficient if the bolt is pretensioned by means of the device and then loosened by comparatively weak hammer blows on the end of the bolt facing away from the device. Since the threaded spindle in the support bell is axially freely movable, the effect of such loosening is not weakened by the support bell.
  • the support bell is divided into a bell part supporting the threaded spindle and a spacer part detachably connected to the bell part and extending the axial length of the bell interior of the bell part in the axial direction of the threaded spindle. Due to this measure, on the one hand, the length of the threaded spindle and thus the loosening of the above type, opposing weight, can be reduced, and, on the other hand, the weight and size of the device is reduced, at least when the bolts are set.
  • the support surface of the spacer part, on the one hand, and the bell part, on the other hand, facing away from the bell part and intended to be placed on the constructional unit expediently has approximately the same surface contour and size.
  • the coupling head of the threaded spindle preferably has a threaded pin which can be screwed into an end threaded hole of the connecting bolt and a stop plate which limits the screwing depth.
  • the threaded pin enables simple and safe coupling of the threaded spindle to the bolt; the stop plate limits the screw-in depth on the one hand and on the other hand transfers impact forces from the bolt to the threaded spindle.
  • a pressure ring is expediently rotatably mounted on the stop plate by means of an axial pressure roller bearing on the side of the stop plate pointing axially to the threaded pin.
  • the rotary engagement surfaces of the spindle nut can be key surfaces or the like for a tool, for example a wrench.
  • the spindle nut can, however, be provided with a handling part, in particular a handwheel. A further ease of handling is obtained if the handling part is connected to the spindle nut via a one-way clutch, for example a ratchet clutch.
  • the threaded spindle expediently has an at least two-start thread. Friction torques that reduce the preload force that can be generated can be reduced if the threaded nut is supported on the support bell by means of an axial pressure roller bearing. It is also particularly advantageous to support the threaded nut via a plastic washer on the support bell. The plastic washer is elastically deformed when the bolt is preloaded and acts as a force accumulator, which is relaxed by loosening the bolt.
  • FIG. 1 shows a section through the connection area of two vertically extending corner posts arranged above one another of two tower units, not shown, of a tower crane, for example a tower crane.
  • the end of one of the two corner posts is provided with a pin 1 which engages in a pin receiving sleeve 3 at the opposite end of the other corner post.
  • the pin 1 and the pin receiving sleeve are provided with mutually aligned, continuous and equal-diameter fitting openings 5 and 7, in which a cylindrical striking or connecting pin 9 engages in a snug fit.
  • the bolt 9 essentially transmits the entire forces between the corner posts and is accordingly dimensioned strong.
  • the bolt has a diameter of several centimeters, for example seven centimeters with a length of thirty centimeters and more. Such a bolt 9 tends to stick due to fretting rust and the like.
  • the device 11 has a two-part support bell 19, consisting of a bell part 13 and a spacing part 17 which extends the bell interior 15 in the axial direction, and a threaded spindle 27 which can be freely displaced in an opening 23 in the base 25 of the bell part 13.
  • the threaded spindle 27 has a two-start thread provided on the outside of the bell part 13 a spindle nut 29 is screwed.
  • the spindle nut 29 is supported on the outside of the base 25 via an elastically yielding plastic disc 31 and carries a handwheel 33 which, via a one-way clutch 35, for example a ratchet clutch, the spindle nut 29 for the pulling movement of the threaded spindle 27 from the support bell 19 to the spindle nut 29 directed towards.
  • a one-way clutch 35 for example a ratchet clutch
  • the support bell 19 is placed over the end of the bolt 9 emerging from the corner handle connection and the threaded pin 37 is screwed into the front opening of the bolt 9 until it stops on the stop plate 39. Wrench flats 41 on the opposite end of the threaded spindle 27 facilitate the coupling process.
  • the handwheel 33 By turning the handwheel 33, the threaded spindle 27 is pulled out of the support bell 19, while at the same time the bolt 9 is drawn into the bell interior 15 of the support bell 19. If the bolt 9 is stuck or otherwise stuck, the manual operation of the handwheel 33 can often exert a pulling force which is insufficient for loosening the bolt 9.
  • the axial depth of the support bell 19 is dimensioned such that the bell interior 15 can accommodate essentially the entire fit length of the bolt 9.
  • This not only increases the weight and dimensions of the support bell 19, but also requires a comparatively long threaded spindle 27.
  • the length of the threaded spindle 27 must be dimensioned so large that, as Figure 2 shows for the setting process, the bolt from the side opposite the device the corner stem connection forth into the fitting openings 5, 7 can be pulled.
  • the spacer 17 is removed from the bell part 13 and the bell part 13 with its rest on the spacer 17 bearing surface 43 is placed directly on the corner post connection.
  • the surface contour and size of the contact surface 43 of the bell part 13 is approximately equal to the corresponding contact surface of the spacer part 17. Accordingly, the threaded spindle 27 and the axial length of the spacer 17 can be shortened.
  • the spindle nut 29 can also be provided with handling surfaces, for example wrench surfaces, in addition to or instead of the handwheel 33, to which another handling device, possibly also a motor-driven power device, can be attached.
  • a pressure ring can be rotatably provided on the side facing the bolt 9, which is supported on the stop plate 39 via an axial pressure roller bearing.
  • An axial pressure roller bearing can also be provided between the spindle nut 29 and the bottom 25 of the bell part 13.
EP91118947A 1990-11-07 1991-11-06 Extracteur pour axes de jonction Expired - Lifetime EP0484930B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE9015316U 1990-11-07
DE9015316U DE9015316U1 (fr) 1990-11-07 1990-11-07

Publications (2)

Publication Number Publication Date
EP0484930A1 true EP0484930A1 (fr) 1992-05-13
EP0484930B1 EP0484930B1 (fr) 1996-02-07

Family

ID=6859147

Family Applications (1)

Application Number Title Priority Date Filing Date
EP91118947A Expired - Lifetime EP0484930B1 (fr) 1990-11-07 1991-11-06 Extracteur pour axes de jonction

Country Status (4)

Country Link
EP (1) EP0484930B1 (fr)
AT (1) ATE133890T1 (fr)
DE (2) DE9015316U1 (fr)
ES (1) ES2086454T3 (fr)

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0618047A1 (fr) * 1993-03-30 1994-10-05 Potain Dispositif de montage d'axes de liaison pour éléments de charpente, et axe de liaison adapté à ce dispositif
FR2776951A1 (fr) * 1998-04-02 1999-10-08 Jean Vautrin Dispositif extracteur de goupille
CN102672669A (zh) * 2012-05-24 2012-09-19 国电大渡河流域水电开发有限公司龚嘴水力发电总厂 一种拔销装置及其使用方法
CN102909688A (zh) * 2012-11-18 2013-02-06 苏州蓝王机床工具科技有限公司 一种转台与吊臂连接销装配与拆卸专用工具
CN103991056A (zh) * 2014-05-14 2014-08-20 广西桂冠电力股份有限公司大化水力发电总厂 水轮机导水机构拐臂半圆键拔出专用工具
CN106522103A (zh) * 2016-12-08 2017-03-22 宿州学院 一种便捷插拔的大型施工设备的伸缩式支腿
CN107336190A (zh) * 2017-05-19 2017-11-10 河钢股份有限公司承德分公司 一种双作用气缸活塞与缸筒分离器
CN109048247A (zh) * 2018-07-23 2018-12-21 大连理工大学 一种压电三维测力单元的预紧方法
CN112140053A (zh) * 2020-09-29 2020-12-29 中国航发动力股份有限公司 一种止动销的拆卸装置
CN113247642A (zh) * 2021-06-24 2021-08-13 湖北三江航天万峰科技发展有限公司 一种用于箱体中设备的推拉装置
CN113459037A (zh) * 2020-03-31 2021-10-01 上海烟草集团有限责任公司 中心销轴的安装工具以及中心销轴的安装方法
CN114952710A (zh) * 2022-05-25 2022-08-30 广东省源天工程有限公司 一种手动、液压两用的7字键拆卸装置
US20230150074A1 (en) * 2021-11-15 2023-05-18 Manitowoc Crane Group France Device for mounting/dismounting a connecting pin used for an end-to-end assembly of two frame elements

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE9412626U1 (de) * 1994-08-04 1994-10-06 Bilfinger Berger Bau Vorrichtung zur Montage und Demontage von Turmdrehkränen
DE19803732C2 (de) * 1998-01-30 2000-10-26 Audi Ag Abziehvorrichtung für einen in ein Basisteil eingepreßten Stift
DE10346815A1 (de) * 2003-10-06 2005-05-12 Rodenberg Kunststofftech Verfahren zum Einziehen und/oder Ausziehen eines Rotors in oder aus einem Stator
CN104015036B (zh) * 2014-05-14 2016-08-17 广西桂冠电力股份有限公司大化水力发电总厂 轴流转桨式水轮机转轮桨叶的安装装置及安装方法
CN104907994B (zh) * 2015-04-15 2017-06-09 王福成 防窜防脱防裂自取式驴头销子整体装置
CN109968276A (zh) * 2018-12-28 2019-07-05 大连长丰实业总公司 一种氧气仪表指针分解工具

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1538306A (en) * 1923-10-08 1925-05-19 Henry W Stewart Pump-valve seat and liner puller
US1938601A (en) * 1931-11-30 1933-12-12 Clarence E Blewett Extractor
US4009515A (en) * 1974-12-09 1977-03-01 Charles Racin Disc brake piston puller
US4094052A (en) * 1977-05-25 1978-06-13 Lock Technology, Inc. Lock removal tool
PT73619A (fr) * 1981-09-04 1981-10-01 Carlos Amado Da Rua Tavora Un extracteur de tuyaux pour des appareils industriaux
GB2203090A (en) * 1987-04-02 1988-10-12 Roy Higgins Device for removing bushes
EP0306738A1 (fr) * 1987-09-08 1989-03-15 Horst Klann Dispositif pour emmancher et retirer des paliers ou manchons, surtout pour paliers d'arbre et/ou moyeux de boudin de roue de véhicules à moteur

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1538306A (en) * 1923-10-08 1925-05-19 Henry W Stewart Pump-valve seat and liner puller
US1938601A (en) * 1931-11-30 1933-12-12 Clarence E Blewett Extractor
US4009515A (en) * 1974-12-09 1977-03-01 Charles Racin Disc brake piston puller
US4094052A (en) * 1977-05-25 1978-06-13 Lock Technology, Inc. Lock removal tool
PT73619A (fr) * 1981-09-04 1981-10-01 Carlos Amado Da Rua Tavora Un extracteur de tuyaux pour des appareils industriaux
GB2203090A (en) * 1987-04-02 1988-10-12 Roy Higgins Device for removing bushes
EP0306738A1 (fr) * 1987-09-08 1989-03-15 Horst Klann Dispositif pour emmancher et retirer des paliers ou manchons, surtout pour paliers d'arbre et/ou moyeux de boudin de roue de véhicules à moteur

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
WESTERN ELECTRIC; TECHNICAL DIGEST Bd. 8171, Nr. 46, April 1977, USA Seiten 1 - 2; G. W. ANNINGER: 'Concrete anchor removal tool' *

Cited By (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0618047A1 (fr) * 1993-03-30 1994-10-05 Potain Dispositif de montage d'axes de liaison pour éléments de charpente, et axe de liaison adapté à ce dispositif
FR2703389A1 (fr) * 1993-03-30 1994-10-07 Potain Sa Dispositif de montage d'axes de liaison pour éléments de charpente, et axe de liaison adapté à ce dispositif.
FR2776951A1 (fr) * 1998-04-02 1999-10-08 Jean Vautrin Dispositif extracteur de goupille
CN102672669A (zh) * 2012-05-24 2012-09-19 国电大渡河流域水电开发有限公司龚嘴水力发电总厂 一种拔销装置及其使用方法
CN102909688A (zh) * 2012-11-18 2013-02-06 苏州蓝王机床工具科技有限公司 一种转台与吊臂连接销装配与拆卸专用工具
CN103991056A (zh) * 2014-05-14 2014-08-20 广西桂冠电力股份有限公司大化水力发电总厂 水轮机导水机构拐臂半圆键拔出专用工具
CN106522103A (zh) * 2016-12-08 2017-03-22 宿州学院 一种便捷插拔的大型施工设备的伸缩式支腿
CN107336190A (zh) * 2017-05-19 2017-11-10 河钢股份有限公司承德分公司 一种双作用气缸活塞与缸筒分离器
CN109048247A (zh) * 2018-07-23 2018-12-21 大连理工大学 一种压电三维测力单元的预紧方法
CN113459037A (zh) * 2020-03-31 2021-10-01 上海烟草集团有限责任公司 中心销轴的安装工具以及中心销轴的安装方法
CN113459037B (zh) * 2020-03-31 2023-08-29 上海烟草集团有限责任公司 中心销轴的安装工具以及中心销轴的安装方法
CN112140053A (zh) * 2020-09-29 2020-12-29 中国航发动力股份有限公司 一种止动销的拆卸装置
CN113247642A (zh) * 2021-06-24 2021-08-13 湖北三江航天万峰科技发展有限公司 一种用于箱体中设备的推拉装置
CN113247642B (zh) * 2021-06-24 2022-07-19 湖北三江航天万峰科技发展有限公司 一种用于箱体中设备的推拉装置
US20230150074A1 (en) * 2021-11-15 2023-05-18 Manitowoc Crane Group France Device for mounting/dismounting a connecting pin used for an end-to-end assembly of two frame elements
US11951577B2 (en) * 2021-11-15 2024-04-09 Manitowoc Crane Group France Device for mounting/dismounting a connecting pin used for an end-to-end assembly of two frame elements
CN114952710A (zh) * 2022-05-25 2022-08-30 广东省源天工程有限公司 一种手动、液压两用的7字键拆卸装置

Also Published As

Publication number Publication date
EP0484930B1 (fr) 1996-02-07
DE9015316U1 (fr) 1991-01-17
ATE133890T1 (de) 1996-02-15
ES2086454T3 (es) 1996-07-01
DE59107384D1 (de) 1996-03-21

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