DE20117970U1 - Hydraulic ejection device - Google Patents

Hydraulic ejection device

Info

Publication number
DE20117970U1
DE20117970U1 DE20117970U DE20117970U DE20117970U1 DE 20117970 U1 DE20117970 U1 DE 20117970U1 DE 20117970 U DE20117970 U DE 20117970U DE 20117970 U DE20117970 U DE 20117970U DE 20117970 U1 DE20117970 U1 DE 20117970U1
Authority
DE
Germany
Prior art keywords
threaded spindle
ejection
cylinder
free
hydraulic cylinder
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
DE20117970U
Other languages
German (de)
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.)
Johann Peffekoever & Co K GmbH
Original Assignee
Johann Peffekoever & Co K 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 Johann Peffekoever & Co K GmbH filed Critical Johann Peffekoever & Co K GmbH
Priority to DE20117970U priority Critical patent/DE20117970U1/en
Publication of DE20117970U1 publication Critical patent/DE20117970U1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B25HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25BTOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B27/00Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for
    • B25B27/02Hand 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
    • B25B27/023Hand 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
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23PMETAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
    • B23P19/00Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformation; Tools or devices therefor so far as not provided for in other classes
    • B23P19/02Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformation; Tools or devices therefor so far as not provided for in other classes for connecting objects by press fit or for detaching same
    • B23P19/025For detaching only
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B25HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25BTOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B27/00Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for
    • B25B27/02Hand 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
    • B25B27/06Hand 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 inserting or withdrawing sleeves or bearing races
    • B25B27/062Hand 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 inserting or withdrawing sleeves or bearing races using screws

Description

Der Beschreibungstext wurde nicht elektronisch erfaßt The description text was not recorded electronically  
Der Beschreibungstext wurde nicht elektronisch erfaßt The description text was not recorded electronically  
Der Beschreibungstext wurde nicht elektronisch erfaßt The description text was not recorded electronically  
Der Beschreibungstext wurde nicht elektronisch erfaßt The description text was not recorded electronically  
Der Beschreibungstext wurde nicht elektronisch erfaßt The description text was not recorded electronically  
Der Beschreibungstext wurde nicht elektronisch erfaßt The description text was not recorded electronically  
Der Beschreibungstext wurde nicht elektronisch erfaßt The description text was not recorded electronically  
Der Beschreibungstext wurde nicht elektronisch erfaßtThe description text was not recorded electronically

Claims (14)

1. Hydraulische Ausdrückvorrichtung, insbesondere für Abziehgeräte, mit einem Hydraulikzylinder (8) mit folgenden Merkmalen:
  • - ein Ende des Hydraulikzylinders (8) ist mit einem Innengewinde (9) versehen, in das eine Gewindespindel (10) eingeschraubt ist,
  • - an dem anderen Ende weist der Hydraulikzylinder (8) eine Linearfüh­ rung auf, in der ein Druckelement (15) längsverschiebbar geführt ist,
  • - der Hydraulikzylinder (8) weist zwei Zylinderabschnitte (12, 13) mit unterschiedlichen Querschnittsflächen auf,
  • - in dem ersten Zylinderabschnitt (12) ist ein erstes Kolbenelement (11) dicht geführt, welches an die Gewindespindel (10) angrenzt,
  • - in dem zweiten Zylinderabschnitt (13) ist ein zweites Kolbenelement (14) dicht geführt, welches an das Druckelement (15) angrenzt,
  • - zwischen den beiden Kolbenelementen (11, 14) ist in dem Hydrau­ likzylinder (8) ein Hydraulikmedium (16) eingeschlossen,
dadurch gekennzeichnet, daß die Gewindespindel (10) einen Abschnitt begrenzter mechanischer Belastbarkeit aufweist, der die auf das erste Kolbenelement (11) übertragbare Kraft derart begrenzt, daß der Druck des Hydraulikmediums (16) unterhalb eines Grenzdrucks bleibt, ab dem eine Beschädigung des Hydraulikzylinders (8) auftreten kann.
1. Hydraulic ejection device, in particular for pullers, with a hydraulic cylinder ( 8 ) with the following features:
  • one end of the hydraulic cylinder ( 8 ) is provided with an internal thread ( 9 ) into which a threaded spindle ( 10 ) is screwed,
  • - At the other end, the hydraulic cylinder ( 8 ) has a linear guide, in which a pressure element ( 15 ) is guided to be longitudinally displaceable,
  • - The hydraulic cylinder ( 8 ) has two cylinder sections ( 12 , 13 ) with different cross-sectional areas,
  • a first piston element ( 11 ) is tightly guided in the first cylinder section ( 12 ) and adjoins the threaded spindle ( 10 ),
  • a second piston element ( 14 ) is tightly guided in the second cylinder section ( 13 ) and adjoins the pressure element ( 15 ),
  • - Between the two piston elements ( 11 , 14 ), a hydraulic medium ( 16 ) is enclosed in the hydraulic cylinder ( 8 ),
characterized in that the threaded spindle ( 10 ) has a section of limited mechanical strength which limits the force which can be transmitted to the first piston element ( 11 ) in such a way that the pressure of the hydraulic medium ( 16 ) remains below a limit pressure from which damage to the hydraulic cylinder ( 8 ) can occur.
2. Ausdrückvorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß die Gewindespindel (10) zumindest abschnittsweise einen reduzierten Quer­ schnitt aufweist.2. Squeezing device according to claim 1, characterized in that the threaded spindle ( 10 ) has a reduced cross section at least in sections.
3. Ausdrückvorrichtung nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß die Gewindespindel (10) mit einer in Umfangsrichtung verlaufenden Kerbe versehen ist.3. Ejecting device according to claim 1 or 2, characterized in that the threaded spindle ( 10 ) is provided with a notch running in the circumferential direction.
4. Ausdrückvorrichtung nach den Ansprüchen 2 und 3, dadurch gekenn­ zeichnet, daß die Gewindespindel (10) in der Nähe ihres freien Endes eine Ringnut (22) aufweist.4. Expressing device according to claims 2 and 3, characterized in that the threaded spindle ( 10 ) has an annular groove ( 22 ) near its free end.
5. Ausdrückvorrichtung nach Anspruch 2, dadurch gekennzeichnet, daß die Gewindespindel (10) in der Nähe ihres freien Endes eine in einer radialen Ebene verlaufende Bohrung (23) aufweist. 5. ejection device according to claim 2, characterized in that the threaded spindle ( 10 ) in the vicinity of its free end has a bore ( 23 ) extending in a radial plane.
6. Ausdrückvorrichtung nach Anspruch 5, dadurch gekennzeichnet, daß sich die Bohrung (23) diametral erstreckt.6. Expressing device according to claim 5, characterized in that the bore ( 23 ) extends diametrically.
7. Ausdrückvorrichtung nach Anspruch 2, dadurch gekennzeichnet, daß die Gewindespindel (10) in ihrem freien Ende eine axiale Bohrung (24) auf­ weist.7. ejection device according to claim 2, characterized in that the threaded spindle ( 10 ) has an axial bore ( 24 ) in its free end.
8. Ausdrückvorrichtung nach Anspruch 7, dadurch gekennzeichnet, daß die Gewindespindel (10) an ihrem freien Ende einen Abschnitt (21) mit vergrö­ ßerter Querschnittsfläche aufweist, wobei die Länge der axialen Bohrung (24) größer ist als die Länge des Abschnitts (21) mit vergrößerter Quer­ schnittsfläche.8. ejection device according to claim 7, characterized in that the threaded spindle ( 10 ) has at its free end a portion ( 21 ) with an enlarged cross-sectional area, the length of the axial bore ( 24 ) being greater than the length of the portion ( 21 ) with enlarged cross-sectional area.
9. Ausdrückvorrichtung nach einem der vorangehenden Ansprüche, dadurch gekennzeichnet, daß das freie Ende der Gewindespindel (10) eine Anord­ nung (12) zur formschlüssigen Verbindung mit einem Drehwerkzeug aufweist.9. Expressing device according to one of the preceding claims, characterized in that the free end of the threaded spindle ( 10 ) has an arrangement ( 12 ) for positive connection with a turning tool.
10. Ausdrückvorrichtung nach Anspruch 9, dadurch gekennzeichnet, daß das freie Ende der Gewindespindel (10) als Sechskant (21) ausgebildet ist.10. ejection device according to claim 9, characterized in that the free end of the threaded spindle ( 10 ) is designed as a hexagon ( 21 ).
11. Ausdrückvorrichtung nach einem der vorangehenden Ansprüche, dadurch gekennzeichnet, daß der Hydraulikzylinder (8) mit einem Außen­ gewinde (7) versehen ist.11. Squeezing device according to one of the preceding claims, characterized in that the hydraulic cylinder ( 8 ) is provided with an external thread ( 7 ).
12. Ausdrückvorrichtung nach Anspruch 11, dadurch gekennzeichnet, daß auf das Außengewinde (7) ein Verbindungsflansch (6) aufgeschraubt ist, der eine Abziehglocke (1) trägt, deren freies Ende mit einer Greifvorrichtung für einen Lagerring (2) versehen ist.12. ejection device according to claim 11, characterized in that on the external thread ( 7 ) a connecting flange ( 6 ) is screwed, which carries a pull-off bell ( 1 ), the free end of which is provided with a gripping device for a bearing ring ( 2 ).
13. Ausdrückvorrichtung nach einem der vorangehenden Ansprüche, dadurch gekennzeichnet, daß jedes Kolbenelement (11, 14) eine Dichtung (18, 19) aufweist, die durch den Druck des Hydraulikmediums (16) gegen die Innenwandung des Hydraulikzylinders (8) gedrückt wird.13. ejection device according to one of the preceding claims, characterized in that each piston element ( 11 , 14 ) has a seal ( 18 , 19 ) which is pressed by the pressure of the hydraulic medium ( 16 ) against the inner wall of the hydraulic cylinder ( 8 ).
14. Ausdrückvorrichtung nach einem der vorangehenden Ansprüche, dadurch gekennzeichnet, daß die Querschnittsfläche des ersten Zylinderabschnitts (12) kleiner ist als die Querschnittsfläche des zweiten Zylinderab­ schnitts (13).14. Squeezing device according to one of the preceding claims, characterized in that the cross-sectional area of the first cylinder section ( 12 ) is smaller than the cross-sectional area of the second cylinder section ( 13 ).
DE20117970U 2001-11-07 2001-11-07 Hydraulic ejection device Expired - Lifetime DE20117970U1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE20117970U DE20117970U1 (en) 2001-11-07 2001-11-07 Hydraulic ejection device

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE20117970U DE20117970U1 (en) 2001-11-07 2001-11-07 Hydraulic ejection device
DE2002150276 DE10250276B4 (en) 2001-11-07 2002-10-28 Hydraulic ejection device

Publications (1)

Publication Number Publication Date
DE20117970U1 true DE20117970U1 (en) 2002-01-24

Family

ID=7963585

Family Applications (2)

Application Number Title Priority Date Filing Date
DE20117970U Expired - Lifetime DE20117970U1 (en) 2001-11-07 2001-11-07 Hydraulic ejection device
DE2002150276 Expired - Fee Related DE10250276B4 (en) 2001-11-07 2002-10-28 Hydraulic ejection device

Family Applications After (1)

Application Number Title Priority Date Filing Date
DE2002150276 Expired - Fee Related DE10250276B4 (en) 2001-11-07 2002-10-28 Hydraulic ejection device

Country Status (1)

Country Link
DE (2) DE20117970U1 (en)

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2412080A (en) * 2004-03-20 2005-09-21 Klann Spezial Werkzeugbau Gmbh Bearing removal device
CN101357432B (en) * 2007-07-30 2010-07-28 刘克宪 Bearing withdrawing device
CN101733627B (en) * 2008-11-25 2011-07-06 海洋王照明科技股份有限公司 Press-mounting machine
WO2012100933A1 (en) * 2011-01-28 2012-08-02 Lufthansa Technik Ag Method and device for changing a gasket in an aircraft engine
CN102654151A (en) * 2011-03-02 2012-09-05 王明郁 Oil pressure rod device for manual power tool
CN102672458A (en) * 2012-06-13 2012-09-19 方盛车桥(柳州)有限公司 Press mounting machine for front axle hub bearing inner ring and press mounting method thereof
CN103386604A (en) * 2013-08-09 2013-11-13 宁波慈星股份有限公司 Opening and closing cam bidirectional bearing press-in device for flat knitting machine
CN103696113A (en) * 2014-01-10 2014-04-02 宁波慈星股份有限公司 Hairbrush holder supporting rod pressing-in device of flat knitting machine
CN103802068A (en) * 2014-02-24 2014-05-21 润邦卡哥特科工业有限公司 Bearing and shaft installation tool
CN106141635A (en) * 2016-07-29 2016-11-23 中国北方发动机研究所(天津) A kind of jacking mechanism for the assembling of dish shaft flange and assembly method thereof
CN107971970A (en) * 2017-11-24 2018-05-01 中山复盛机电有限公司 Reliability and durability optical projection form grind dismounting device for grinding wheel
CN109290771A (en) * 2018-09-28 2019-02-01 青岛铭晨信息技术有限公司 A kind of pressing machine for the installation of industrial coupler

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102006039296B3 (en) * 2006-08-22 2008-04-17 Knorr-Bremse Systeme für Nutzfahrzeuge GmbH Extraction
CN107866735A (en) * 2017-11-24 2018-04-03 中山复盛机电有限公司 The fast and stable method for dismounting of grinder wheel

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DD80871A (en) *
US2504393A (en) * 1947-12-15 1950-04-18 Chester K Cook Shock absorber for wheel pullers
DE3047705A1 (en) * 1980-12-18 1982-07-15 Hohmann Hans Hydraulic nut-tightening safety device - has nut-resetting friction drive with shear pin
DE9319183U1 (en) * 1993-12-14 1994-03-17 Klann Horst Spring tensioner with overload protection
US5896639A (en) * 1995-08-17 1999-04-27 Chen; Jui-Nien Hydraulic puller
DE29620260U1 (en) * 1996-11-21 1997-03-27 Johann Peffekoever Gmbh & Co K Hydraulic spindle

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2412080B (en) * 2004-03-20 2006-03-29 Klann Spezial Werkzeugbau Gmbh Ejection device for damping bushes of a motor vehicle axle
GB2412080A (en) * 2004-03-20 2005-09-21 Klann Spezial Werkzeugbau Gmbh Bearing removal device
CN101357432B (en) * 2007-07-30 2010-07-28 刘克宪 Bearing withdrawing device
CN101733627B (en) * 2008-11-25 2011-07-06 海洋王照明科技股份有限公司 Press-mounting machine
KR101528585B1 (en) * 2011-01-28 2015-06-12 루프트한자 테크니크 아게 Verfahren und vorrichtung zum wechseln einer dichtungsplatte in einem flugzeugtriebwerk
WO2012100933A1 (en) * 2011-01-28 2012-08-02 Lufthansa Technik Ag Method and device for changing a gasket in an aircraft engine
US9409266B2 (en) 2011-01-28 2016-08-09 Lufthansa Technik Ag Method and device for changing a front seal plate in an aircraft engine
CN102654151A (en) * 2011-03-02 2012-09-05 王明郁 Oil pressure rod device for manual power tool
CN102654151B (en) * 2011-03-02 2014-08-27 王明郁 Oil pressure rod device for manual power tool
CN102672458A (en) * 2012-06-13 2012-09-19 方盛车桥(柳州)有限公司 Press mounting machine for front axle hub bearing inner ring and press mounting method thereof
CN103386604A (en) * 2013-08-09 2013-11-13 宁波慈星股份有限公司 Opening and closing cam bidirectional bearing press-in device for flat knitting machine
CN103696113A (en) * 2014-01-10 2014-04-02 宁波慈星股份有限公司 Hairbrush holder supporting rod pressing-in device of flat knitting machine
CN103802068A (en) * 2014-02-24 2014-05-21 润邦卡哥特科工业有限公司 Bearing and shaft installation tool
CN106141635A (en) * 2016-07-29 2016-11-23 中国北方发动机研究所(天津) A kind of jacking mechanism for the assembling of dish shaft flange and assembly method thereof
CN107971970A (en) * 2017-11-24 2018-05-01 中山复盛机电有限公司 Reliability and durability optical projection form grind dismounting device for grinding wheel
CN109290771A (en) * 2018-09-28 2019-02-01 青岛铭晨信息技术有限公司 A kind of pressing machine for the installation of industrial coupler

Also Published As

Publication number Publication date
DE10250276B4 (en) 2012-03-01
DE10250276A1 (en) 2003-05-15

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