EP0679762B1 - Screwing machine - Google Patents

Screwing machine Download PDF

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Publication number
EP0679762B1
EP0679762B1 EP95104117A EP95104117A EP0679762B1 EP 0679762 B1 EP0679762 B1 EP 0679762B1 EP 95104117 A EP95104117 A EP 95104117A EP 95104117 A EP95104117 A EP 95104117A EP 0679762 B1 EP0679762 B1 EP 0679762B1
Authority
EP
European Patent Office
Prior art keywords
drive shaft
drive unit
clutch
drive
hydraulic
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
EP95104117A
Other languages
German (de)
French (fr)
Other versions
EP0679762A1 (en
Inventor
Josef Hertelendi
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.)
Georg Robel GmbH and Co
Original Assignee
Georg Robel GmbH and Co
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 Georg Robel GmbH and Co filed Critical Georg Robel GmbH and Co
Publication of EP0679762A1 publication Critical patent/EP0679762A1/en
Application granted granted Critical
Publication of EP0679762B1 publication Critical patent/EP0679762B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
    • E01B29/00—Laying, rebuilding, or taking-up tracks; Tools or machines therefor
    • E01B29/24—Fixing or removing detachable fastening means or accessories thereof; Pre-assembling track components by detachable fastening means
    • E01B29/28—Fixing or removing detachable fastening means or accessories thereof; Pre-assembling track components by detachable fastening means the fastening means being of screw-and-nut type; Apparatus therefor, adapted to additionally drilling holes
    • 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
    • B25B21/00—Portable power-driven screw or nut setting or loosening tools; Attachments for drilling apparatus serving the same purpose
    • B25B21/002—Portable power-driven screw or nut setting or loosening tools; Attachments for drilling apparatus serving the same purpose for special purposes
    • 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
    • B25B23/00—Details of, or accessories for, spanners, wrenches, screwdrivers
    • B25B23/14—Arrangement of torque limiters or torque indicators in wrenches or screwdrivers
    • 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
    • B25B23/00—Details of, or accessories for, spanners, wrenches, screwdrivers
    • B25B23/14—Arrangement of torque limiters or torque indicators in wrenches or screwdrivers
    • B25B23/145—Arrangement of torque limiters or torque indicators in wrenches or screwdrivers specially adapted for fluid operated wrenches or screwdrivers

Definitions

  • the invention relates to a screwing machine for rail fastening screws, with an internal combustion engine, one with a slip clutch Gearbox and one intended for the rotation of a screw head Drive shaft and a rail carriage for a manual procedure the machine on a track.
  • Another hydraulic screwing machine known from DE 29 43 938 A1 has a screw head which can be acted upon by a hydraulic motor on. Such a screwing machine allows an accurate one Torque limitation, however, is bulky due to the relatively high weight.
  • the object of the present invention is now to create a Screwdriver of the generic type, with only a small amount constructive additional effort and retention of a mechanical drive an exact torque can be transferred to the screw head is.
  • the screwing machine created according to the invention to solve the problem is driven by a hydraulic pump driven by the internal combustion engine, a hydraulic line having a pressure relief valve and one arranged between the slip clutch and the screw head, by means of the hydraulic pump Actuable drive unit used for torque transmission is connected to the drive shaft via a one-way clutch.
  • a screwing machine designed in this way enables relatively little constructive additional effort the combination of the advantageous properties a mechanically and a hydraulically driven machine. So that exists the opportunity to tighten the screwing process in a first stage below the specified torque due to a purely mechanical drive to carry out and in a immediately subsequent second stage Actuating the hydraulic drive unit with the screw exactly to the desired torque. Through the one-way clutch is despite the constant mechanical connection of the hydraulic drive unit with the drive shaft an optional action on the drive shaft possible by the drive motor or by the hydraulic work unit.
  • the training according to the invention has the particular advantage that a simple way of retrofitting existing ones Screwing machines is feasible. In addition, the weight the screwdriver compared to a purely mechanically driven one Execution only slightly increased.
  • a screwing machine 1 for the implementation of all occurring in the track superstructure Screwdriving essentially consists of one with diesel or petrol driven drive motor 2, a transmission 3 with a clutch 4, a drive shaft 5 and a screw head 6 together.
  • the screwing machine 1 is supported a rail undercarriage 7 on a rail 8 of a track 9 and is with Can be moved by hand using a handle 10.
  • One over an angle head 11 positively connected to the drive shaft 5 screw 12 has at its lower end a screwing tool 13 for tightening or loosening rail fastening screws 14.
  • a hydraulic pump 15 can be driven by the drive motor 2 and stands via a schematically indicated hydraulic line 16 with a drive unit 17 in connection.
  • this is hydraulically loadable Drive unit 17 from a perpendicular to a longitudinal axis 18 of the drive shaft 5 and horizontal hydraulic cylinder 19 with a rack 20 slidably mounted in the longitudinal direction thereof is in positive engagement with a rotatable about the longitudinal axis 18 mounted gear 21.
  • This is assigned a one-way clutch 22, a power transmission from the drive unit 17 to the drive shaft 5 only possible if a rotation of the gear 21 in a to Tightening the rail fastening screw 14 is carried out.
  • a pressure gauge 23 is the released by the hydraulic pump 15 and acting on the drive unit 17 hydraulic pressure can be measured and regulated.
  • the screwing tool is used to tighten a rail fastening screw 14 13 placed in a known manner and actuating the clutch 4 set in rotation via the drive shaft 5 by the drive motor 2.
  • the torque that can be achieved as a result of the as a slip clutch trained coupling 4 adjustable and is advantageously just below the desired torque.

Abstract

The drive shaft (5) has an associated hydraulically charged drive unit (17). An overriding clutch (22) is located between drive shaft and drive unit. The unit consists of a toothed rack, which is movable in a hydraulic cylinder at right angles to the longitudinal direction of the drive shaft. The rack engages with a toothed gear of the clutch. <IMAGE>

Description

Die Erfindung betrifft eine Schraubmaschine für Schienenbefestigungsschrauben, mit einem Verbrennungsmotor, einem eine Rutschkupplung aufweisenden Getriebe sowie einer für die Rotation eines Schraubkopfes vorgesehenen Antriebswelle und einem Schienenfahrwerk für ein händisches Verfahren der Maschine auf einem Gleis.The invention relates to a screwing machine for rail fastening screws, with an internal combustion engine, one with a slip clutch Gearbox and one intended for the rotation of a screw head Drive shaft and a rail carriage for a manual procedure the machine on a track.

Eine derartige, durch die DE 29 32 693 C2 der Anmelderin bekannte Schraubmaschine ist mit Hilfe eines kleinen Schienenfahrwerkes auf einer der beiden Schienen eines Gleises durch eine Bedienungskraft verfahrbar. Nach Aufsetzen des Schraubkopfes auf die Schienenbefestigungsschraube wird eine Kupplung betätigt, um das Drehmoment des Antriebsmotors über die Antriebswelle mechanisch auf den Schraubkopf zu übertragen. Durch differenziertes Aneinanderpressen der Kupplungsteile besteht die Möglichkeit, unterschiedliche Drehmomente auf die Schienenbefestigungsschraube einwirken zu lassen. Eine derartige mechanische Schraubmaschine hat allerdings den Nachteil, daß das Drehmoment nicht exakt einstellbar ist.Such, known from DE 29 32 693 C2 of the applicant Screwing machine is on one with the help of a small rail carriage the two rails of a track can be moved by an operator. After placing the screw head on the rail fastening screw a clutch is actuated to control the torque of the drive motor mechanically transfer the drive shaft to the screw head. By differentiated Pressing the coupling parts together is possible different torques act on the rail fastening screw allow. However, such a mechanical screwing machine has the disadvantage that the torque is not exactly adjustable.

Eine weitere, durch die DE 29 43 938 A1 bekannte hydraulische Schraubmaschine weist einen durch einen Hydraulikmotor beaufschlagbaren Schraubkopf auf. Eine derartige Schraubmaschine ermöglicht zwar eine genaue Drehmomentbegrenzung, ist jedoch durch das relativ hohe Gewicht unhandlich.Another hydraulic screwing machine known from DE 29 43 938 A1 has a screw head which can be acted upon by a hydraulic motor on. Such a screwing machine allows an accurate one Torque limitation, however, is bulky due to the relatively high weight.

Durch US 4 403 663 ist eine hydraulisch angetriebene und für hohe Drehzahlen geeignete Schraubmaschine bekannt. Zur Erzielung eines exakten Drehmomentes werden die letzten Drehungen der Schraubwelle durch eine zweite, in Form eines Hydraulikzylinders ausgebildete Antriebseinheit erzeugt.By US 4 403 663 is a hydraulically driven and for high speeds suitable screwing machine known. To achieve an exact torque the last turns of the screw shaft are replaced by a second generated in the form of a hydraulic cylinder drive unit.

Durch die DE 40 34 148 A1 ist ein Drehmomentschlüssel mit Zahnstangengetriebe bekannt.DE 40 34 148 A1 is a torque wrench with rack and pinion gear known.

Die Aufgabe der vorliegenden Erfindung liegt nun in der Schaffung einer Schraubmaschine der gattungsgemäßen Art, mit der unter lediglich geringem konstruktivem Mehraufwand und Beibehaltung eines mechanischen Antriebes für den Schraubkopf ein exaktes Drehmoment auf diesen übertragbar ist. The object of the present invention is now to create a Screwdriver of the generic type, with only a small amount constructive additional effort and retention of a mechanical drive an exact torque can be transferred to the screw head is.

Die erfindungsgemäß zur Lösung der Aufgabe geschaffene Schraubmaschine ist durch eine vom Verbrennungsmotor antreibbare Hydraulikpumpe, einer ein Druckbegrenzungsventil aufweisenden Hydraulikleitung sowie einer zwischen Rutschkupplung und dem Schraubkopf angeordneten, mittels der Hydraulikpumpe beaufschlagbaren Antriebseinheit, die zur Drehmomentübertragung über eine Freilaufkupplung mit der Antriebswelle verbunden ist, gekennzeichnet.The screwing machine created according to the invention to solve the problem is driven by a hydraulic pump driven by the internal combustion engine, a hydraulic line having a pressure relief valve and one arranged between the slip clutch and the screw head, by means of the hydraulic pump Actuable drive unit used for torque transmission is connected to the drive shaft via a one-way clutch.

Eine derartig ausgebildete Schraubmaschine ermöglicht bei relativ geringem konstruktivem Mehraufwand die Vereinigung der vorteilhaften Eigenschaften einer mechanisch und einer hydraulisch angetriebenen Maschine. Damit besteht die Möglichkeit, den Schraubvorgang in einer ersten Stufe bis knapp unterhalb des genannten Drehmomentes durch rein mechanischen Antrieb durchzuführen und in einer unmittelbar anschließenden zweiten Stufe durch Beaufschlagung der hydraulischen Antriebseinheit die Schraube exakt mit dem gewünschten Drehmoment anzuziehen. Durch die Freilaufkupplung ist trotz ständiger mechanischer Verbindung der hydraulischen Antriebseinheit mit der Antriebswelle eine wahlweise Beaufschlagung der Antriebswelle durch den Antriebsmotor bzw. durch die hydraulische Arbeitseinheit möglich. Die erfindungsgemäße Ausbildung hat noch den besonderen Vorteil, daß auf einfache Weise eine nachträgliche Umrüstung bereits im Arbeitseinsatz befindlicher Schraubmaschinen durchführbar ist. Außerdem wird das Gewicht der Schraubmaschine im Vergleich zu einer rein mechanisch angetriebenen Ausführung nur geringfügig erhöht.A screwing machine designed in this way enables relatively little constructive additional effort the combination of the advantageous properties a mechanically and a hydraulically driven machine. So that exists the opportunity to tighten the screwing process in a first stage below the specified torque due to a purely mechanical drive to carry out and in a immediately subsequent second stage Actuating the hydraulic drive unit with the screw exactly to the desired torque. Through the one-way clutch is despite the constant mechanical connection of the hydraulic drive unit with the drive shaft an optional action on the drive shaft possible by the drive motor or by the hydraulic work unit. The training according to the invention has the particular advantage that a simple way of retrofitting existing ones Screwing machines is feasible. In addition, the weight the screwdriver compared to a purely mechanically driven one Execution only slightly increased.

Im folgenden wird die Erfindung anhand eines in der Zeichnung dargestellten Ausführungsbeispieles näher beschrieben.In the following the invention with reference to one shown in the drawing Embodiment described in more detail.

Es zeigen:

  • Fig. 1 eine vereinfachte Seitenansicht einer Schraubmaschine mit einem auf einer Schiene eines Gleises verfahrbaren Schienenfahrwerk und einem eine Schraubspindel lagernden Winkelkopf,
  • Fig. 2 einen vergrößerten Teil-Querschnitt durch den eine hydraulisch beaufschlagbare Antriebseinheit aufweisenden Winkelkopf, und
  • Fig. 3 eine Draufsicht auf den Winkelkopf mit der hydraulischen Antriebseinheit.
    • Show it:
  • 1 is a simplified side view of a screwing machine with a rail undercarriage which can be moved on a rail of a track and an angular head which supports a screw spindle,
  • 2 shows an enlarged partial cross section through the angle head having a hydraulically actuatable drive unit, and
  • Fig. 3 is a plan view of the angle head with the hydraulic drive unit.

    • Eine Schraubmaschine 1 zur Durchführung sämtlicher im Gleisoberbau anfallender Schraubarbeiten setzt sich im wesentlichen aus einem mit Diesel oder Benzin betreibbaren Antriebsmotor 2, einem Getriebe 3 mit einer Kupplung 4, einer in Schienenlängsrichtung verlaufenden Antriebswelle 5 und einem Schraubkopf 6 zusammen. Die Schraubmaschine 1 stützt sich über ein Schienenfahrwerk 7 auf einer Schiene 8 eines Gleises 9 ab und ist mit Hilfe eines Handgriffes 10 händisch verschiebbar. Eine über einen Winkelkopf 11 formschlüssig mit der Antriebswelle 5 verbundene Schraubspindel 12 weist an ihrem unteren Ende ein Schraubwerkzeug 13 zum Anziehen bzw. Lösen von Schienenbefestigungsschrauben 14 auf.A screwing machine 1 for the implementation of all occurring in the track superstructure Screwdriving essentially consists of one with diesel or petrol driven drive motor 2, a transmission 3 with a clutch 4, a drive shaft 5 and a screw head 6 together. The screwing machine 1 is supported a rail undercarriage 7 on a rail 8 of a track 9 and is with Can be moved by hand using a handle 10. One over an angle head 11 positively connected to the drive shaft 5 screw 12 has at its lower end a screwing tool 13 for tightening or loosening rail fastening screws 14.

    Eine Hydraulikpumpe 15 ist durch den Antriebsmotor 2 antreibbar und steht über eine schematisch angedeutete Hydraulikleitung 16 mit einer Antriebseinheit 17 in Verbindung.A hydraulic pump 15 can be driven by the drive motor 2 and stands via a schematically indicated hydraulic line 16 with a drive unit 17 in connection.

    Wie insbesondere in Fig. 2 und 3 ersichtlich, besteht diese hydraulisch beaufschlagbare Antriebseinheit 17 aus einem senkrecht zu einer Längsachse 18 der Antriebswelle 5 und horizontal verlaufenden Hydraulikzylinder 19 mit einer in dessen Längsrichtung verschiebbar gelagerten Zahnstange 20. Diese steht in formschlüssigem Eingriff mit einem um die Längsachse 18 drehbar gelagerten Zahnrad 21. Diesem ist eine Freilaufkupplung 22 zugeordnet, die eine Kraftübertragung von der Antriebseinheit 17 auf die Antriebswelle 5 nur dann ermöglicht, wenn eine Rotation des Zahnrades 21 in einem zum Anziehen der Schienenbefestigungsschraube 14 vorgesehenen Drehsinn erfolgt. Erfolgt keine Rotation des Zahnrades 21 bzw. keine Beaufschlagung der Antriebseinheit 17, so ist infolge der Freilaufkupplung 22 trotzdem eine ungestörte Rotation der Antriebswelle 5 durch die Einwirkung des Antriebsmotors 2 über die Kupplung 4 möglich. Durch ein Druckmeßgerät 23 ist der von der Hydraulikpumpe 15 abgegebene und auf die Antriebseinheit 17 einwirkende hydraulische Druck meß- und regelbar.As can be seen in particular in FIGS. 2 and 3, this is hydraulically loadable Drive unit 17 from a perpendicular to a longitudinal axis 18 of the drive shaft 5 and horizontal hydraulic cylinder 19 with a rack 20 slidably mounted in the longitudinal direction thereof is in positive engagement with a rotatable about the longitudinal axis 18 mounted gear 21. This is assigned a one-way clutch 22, a power transmission from the drive unit 17 to the drive shaft 5 only possible if a rotation of the gear 21 in a to Tightening the rail fastening screw 14 is carried out. There is no rotation of the gear 21 or no application the drive unit 17, because of the one-way clutch 22 is nevertheless one undisturbed rotation of the drive shaft 5 by the action of the drive motor 2 possible via clutch 4. By a pressure gauge 23 is the released by the hydraulic pump 15 and acting on the drive unit 17 hydraulic pressure can be measured and regulated.

    Zum Anziehen einer Schienenbefestigungsschraube 14 wird das Schraubwerkzeug 13 in bekannter Weise aufgesetzt und unter Betätigung der Kupplung 4 über die Antriebswelle 5 durch den Antriebsmotor 2 in Rotation versetzt. Das dadurch erzielbare Drehmoment ist durch die als Rutschkupplung ausgebildete Kupplung 4 einstellbar und liegt zweckmäßigerweise knapp unterhalb des gewünschten Drehmomentes. Sobald diese erste Stufe des Drehmomentes erreicht ist, erfolgt unter Entlastung der Kupplung 4 zwecks Trennung der mechanischen Verbindung zwischen Antriebswelle 5 und Antriebsmotor 2 eine im Bereich des Handgriffes 10 steuerbare Beaufschlagung der hydraulischen Antriebseinheit 17 durch die Hydraulikpumpe 15. Durch diese Beaufschlagung erfolgt eine Kraftübertragung von der Zahnstange 20 auf das Zahnrad 21 und von diesem über die - in diesem Drehsinn zum Anziehen der Schienenbefestigungsschraube 14 wirksame - Freilaufkupplung 22 auf die Antriebswelle 5. Mit diesem auf der Hydraulikpumpe 15 vorwählbaren Druck wird die Schienenbefestigungsschraube 14 in einer zweiten und abschließenden Stufe mit dem gewünschten Drehmoment angezogen. Anschließend kann in einem automatischen Vorgang die Zahnstange 20 durch eine Druckfeder wiederum in ihre Ausgangsposition zurückverschoben werden. Mit 24 ist ein Ventil zur Einstellung des Anzugsmomentes bezeichnet.The screwing tool is used to tighten a rail fastening screw 14 13 placed in a known manner and actuating the clutch 4 set in rotation via the drive shaft 5 by the drive motor 2. The torque that can be achieved as a result of the as a slip clutch trained coupling 4 adjustable and is advantageously just below the desired torque. Once this first stage of the Torque is reached, relieving the clutch 4 for the purpose Separation of the mechanical connection between drive shaft 5 and drive motor 2 a controllable action in the area of the handle 10 the hydraulic drive unit 17 by the hydraulic pump 15. This action causes a power transmission from the rack 20 on the gear 21 and from this over the - in this direction effective for tightening the rail fastening screw 14 - one-way clutch 22 on the drive shaft 5. With this on the hydraulic pump 15 preselectable pressure, the rail fastening screw 14 in one second and final stage with the desired torque. The rack can then be operated in an automatic process 20 in turn pushed back into their starting position by a compression spring will. With 24 a valve for setting the tightening torque is designated.

    Zum Lösen einer Schienenbefestigungsschraube 14 wird die Antriebswelle 5 mit Hilfe des Getriebes 3 und des Antriebsmotors 2 in eine gegensinnige Rotation verbracht, bei der infolge der Freilaufkupplung 22 keine formschlüssige Verbindung zwischen Antriebswelle 5 und Antriebseinheit 17 zur Wirkung kommt. Die Antriebseinheit 17 wird nicht beaufschlagt.In order to loosen a rail fastening screw 14, the drive shaft 5 with the help of the gear 3 and the drive motor 2 in an opposite rotation spent in which due to the one-way clutch 22 no positive Connection between drive shaft 5 and drive unit 17 to effect is coming. The drive unit 17 is not acted upon.

    Claims (2)

    1. A screwing machine (1) for rail fastening bolts (14), including an internal combustion engine (2), a gear box (3) having a friction clutch (4), as well as a drive shaft (5) provided for rotating a wrench head (6) and a rail-bound trolley (7) for manual mobility of the machine (1) on a track (9), characterized by a hydraulic pump (15) operable by the internal combustion engine (2), a hydraulic line (16) having a relief valve (24), as well as a drive unit (17) arranged between the friction clutch (4) and the wrench head (6), the drive unit being actuatable by means of the hydraulic pump (16) and, for torque transmission, being connected to the drive shaft (5) via a freewheel clutch (22).
    2. A screwing machine according to claim 1, characterized in that the drive unit (17) is designed as a rack (20) which is displaceable in a hydraulic cylinder (19) perpendicularly to the longitudinal axis of the drive shaft (5) and meshes with a pinion (21), rotatable about the longitudinal direction, of the freewheel clutch (22).
    EP95104117A 1994-04-28 1995-03-21 Screwing machine Expired - Lifetime EP0679762B1 (en)

    Applications Claiming Priority (2)

    Application Number Priority Date Filing Date Title
    DE4414886 1994-04-28
    DE4414886A DE4414886C2 (en) 1994-04-28 1994-04-28 Wrench

    Publications (2)

    Publication Number Publication Date
    EP0679762A1 EP0679762A1 (en) 1995-11-02
    EP0679762B1 true EP0679762B1 (en) 1998-11-25

    Family

    ID=6516704

    Family Applications (1)

    Application Number Title Priority Date Filing Date
    EP95104117A Expired - Lifetime EP0679762B1 (en) 1994-04-28 1995-03-21 Screwing machine

    Country Status (10)

    Country Link
    EP (1) EP0679762B1 (en)
    AT (1) ATE173778T1 (en)
    CZ (1) CZ284029B6 (en)
    DE (1) DE4414886C2 (en)
    DK (1) DK0679762T3 (en)
    ES (1) ES2127428T3 (en)
    HU (1) HU217699B (en)
    PL (1) PL175314B1 (en)
    RO (1) RO115894B1 (en)
    SK (1) SK281031B6 (en)

    Cited By (3)

    * Cited by examiner, † Cited by third party
    Publication number Priority date Publication date Assignee Title
    CN101157209B (en) * 2007-11-20 2010-04-07 张忠海 Portable vehicle mounted dualpurpose wrench
    CN101065541B (en) * 2004-12-03 2010-12-22 罗贝尔铁路建筑机械有限责任公司 Automotive bolt spanner
    CN101983846A (en) * 2010-11-29 2011-03-09 张家港市繁昌机械有限公司 Sleeper bolt power wrench

    Families Citing this family (3)

    * Cited by examiner, † Cited by third party
    Publication number Priority date Publication date Assignee Title
    FR2745216B1 (en) * 1996-02-23 1998-05-22 Turripinoise De Mecanique Sa S MACHINE FOR SCREWING AND UNSCREWING BOLTS OR LOCKDRIVES
    DE102012017270B4 (en) * 2012-08-31 2017-06-22 Deutsche Bahnbaugruppe GmbH Rail car for holding a power driven screwing tool
    DE102016000968A1 (en) * 2016-01-29 2017-08-03 Robel Bahnbaumaschinen Gmbh Wrench

    Family Cites Families (6)

    * Cited by examiner, † Cited by third party
    Publication number Priority date Publication date Assignee Title
    DE2932693A1 (en) * 1979-08-11 1981-03-26 Georg Robel GmbH & Co, 81371 München SCREW MACHINE FOR RAIL FASTENER WITH A SLIP CLUTCH
    DE2943938A1 (en) * 1979-10-31 1981-05-14 Georg Robel GmbH & Co, 8000 München Hydraulic machine for tightening bolts of railway sleepers - has flow regulator to reduce energy losses in hydraulic circuit
    US4403663A (en) * 1981-04-13 1983-09-13 Wolff Manufacturing Company Power-operated torque wrench
    DE3719893A1 (en) * 1987-06-13 1988-12-29 Wagner Paul Heinz HYDRAULIC SCREWDRIVER
    JPH0295579A (en) * 1988-09-28 1990-04-06 Maruma Jusharyo Kk High torque hydraulic shoe bolt wrench
    US5203238A (en) * 1989-10-27 1993-04-20 Raymond Engineering Inc. Low profile rack and pinion wrench

    Cited By (3)

    * Cited by examiner, † Cited by third party
    Publication number Priority date Publication date Assignee Title
    CN101065541B (en) * 2004-12-03 2010-12-22 罗贝尔铁路建筑机械有限责任公司 Automotive bolt spanner
    CN101157209B (en) * 2007-11-20 2010-04-07 张忠海 Portable vehicle mounted dualpurpose wrench
    CN101983846A (en) * 2010-11-29 2011-03-09 张家港市繁昌机械有限公司 Sleeper bolt power wrench

    Also Published As

    Publication number Publication date
    SK281031B6 (en) 2000-11-07
    HUT70628A (en) 1995-10-30
    HU217699B (en) 2000-04-28
    SK53595A3 (en) 1995-11-08
    PL175314B1 (en) 1998-12-31
    RO115894B1 (en) 2000-07-28
    ES2127428T3 (en) 1999-04-16
    DK0679762T3 (en) 1999-08-09
    DE4414886C2 (en) 2003-06-18
    CZ103295A3 (en) 1995-12-13
    ATE173778T1 (en) 1998-12-15
    PL308398A1 (en) 1995-10-30
    DE4414886A1 (en) 1995-11-02
    EP0679762A1 (en) 1995-11-02
    HU9501200D0 (en) 1995-06-28
    CZ284029B6 (en) 1998-07-15

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