EP0929762A1 - Unite d'avance telescopique - Google Patents

Unite d'avance telescopique

Info

Publication number
EP0929762A1
EP0929762A1 EP98912325A EP98912325A EP0929762A1 EP 0929762 A1 EP0929762 A1 EP 0929762A1 EP 98912325 A EP98912325 A EP 98912325A EP 98912325 A EP98912325 A EP 98912325A EP 0929762 A1 EP0929762 A1 EP 0929762A1
Authority
EP
European Patent Office
Prior art keywords
hollow
spindle
feed unit
drive shaft
telescopic
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.)
Withdrawn
Application number
EP98912325A
Other languages
German (de)
English (en)
Inventor
Wolfgang Horn
Ulrich GRÜTTNER
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.)
A Mannesmann Maschinenfabrik & Co KG GmbH
Hueller Hille GmbH
Original Assignee
A Mannesmann Maschinenfabrik & Co KG GmbH
Hueller Hille 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 A Mannesmann Maschinenfabrik & Co KG GmbH, Hueller Hille GmbH filed Critical A Mannesmann Maschinenfabrik & Co KG GmbH
Publication of EP0929762A1 publication Critical patent/EP0929762A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
    • B66F3/00—Devices, e.g. jacks, adapted for uninterrupted lifting of loads
    • B66F3/08—Devices, e.g. jacks, adapted for uninterrupted lifting of loads screw operated
    • B66F3/10—Devices, e.g. jacks, adapted for uninterrupted lifting of loads screw operated with telescopic sleeves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H25/00—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms
    • F16H25/18—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms for conveying or interconverting oscillating or reciprocating motions
    • F16H25/20—Screw mechanisms
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H25/00—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms
    • F16H25/18—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms for conveying or interconverting oscillating or reciprocating motions
    • F16H25/20—Screw mechanisms
    • F16H25/2056—Telescopic screws with at least three screw members in coaxial arrangement
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H25/00—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms
    • F16H25/18—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms for conveying or interconverting oscillating or reciprocating motions
    • F16H25/20—Screw mechanisms
    • F16H25/22—Screw mechanisms with balls, rollers, or similar members between the co-operating parts; Elements essential to the use of such members
    • F16H25/2204—Screw mechanisms with balls, rollers, or similar members between the co-operating parts; Elements essential to the use of such members with balls
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H25/00—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms
    • F16H25/18—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms for conveying or interconverting oscillating or reciprocating motions
    • F16H25/20—Screw mechanisms
    • F16H2025/2062—Arrangements for driving the actuator
    • F16H2025/2081—Parallel arrangement of drive motor to screw axis
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H25/00—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms
    • F16H25/18—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms for conveying or interconverting oscillating or reciprocating motions
    • F16H25/20—Screw mechanisms
    • F16H2025/2062—Arrangements for driving the actuator
    • F16H2025/2096—Arrangements for driving the actuator using endless flexible members

Definitions

  • the invention relates to a telescopic feed unit as a threaded spindle drive.
  • a telescopic feed unit wherein threadedly engaged and rotated by a central drive with respect to an outer, fixed pipe and thus displaceable pipes form a telescopic lifting device and the central drive is arranged coaxially to the pipes, is prevented from mutual rotation, telescopically displaceable hollow shafts, the innermost of which is driven at its lower end and each of the rotatable tubes is connected by a coupling with an associated hollow shaft, the innermost tube with the outermost hollow shaft by a fixed coupling and the rest Pipes are connected to the corresponding hollow shafts by detachable couplings.
  • the arrangement of all threaded tubes outside the hollow drive shaft results in a relatively large outer diameter.
  • connection of the hollow shafts with the threaded pipes via couplings is complex in design.
  • the thread between the individual tubes is designed as a trapezoidal thread with sliding friction, which can lead to increased resistance and temperatures, especially at high speeds.
  • a telescopic feed unit is also known for a manually operated jack.
  • the individual pipes and spindles are each equipped with a trapezoidal thread, which causes the problems mentioned at higher speeds.
  • the invention is based on the object of proposing a telescopic feed unit of the generic type which has the smallest possible outer diameter and is also suitable for highly dynamic movement processes at high speeds.
  • the motor-driven telescopic feed unit according to the invention designed as a ball screw drive, is very stable, particularly in the axial direction, and is suitable for highly dynamic movement processes at high speeds.
  • the outer sleeve and the double ball screw nuts with internal thread that are firmly connected to it at the upper end are connected in a rotationally fixed manner to the housing in which the drive unit is arranged.
  • the non-rotating outer parts of the telescopic feed unit can only be moved in the axial direction. All rotating parts are arranged inside the housing and the outer sleeve, so that the risk of contamination or damage, in particular of the elements belonging to the ball screw drive, can be excluded. It has proven to be advantageous to provide the outer end of the inner spindle and the sleeve with a telescopic cover.
  • the individual rotating propulsion elements of the telescopic feed unit that is the hollow drive shaft and the hollow spindle connected in a rotationally fixed manner, have a very small diameter in the construction according to the invention, so that even at very high speeds, relatively low peripheral speeds and thus low dynamic loads occur.
  • the sliding bushing which ensures the rotationally fixed connection between the hollow drive shaft and the hollow spindle, is equipped with sliding connections or suitable rolling element guides.
  • the telescopic feed unit can be equipped with a preferably optical position measuring system at the drive-side end of the hollow drive shaft.
  • This position measuring system can measure the distance to the inner spindle.
  • the inner spindle is designed as a hollow spindle, the distance to the outer point of application of the inner spindle can be detected, so that temperature changes or length changes resulting from play in the guides have no influence on the measurement result.
  • an optical length measurement system e.g. an interferometer must be installed.
  • the inner spindle and the non-rotatably but axially displaceably connected hollow spindle can have an external thread over almost their entire length. If, in addition, according to claim 7, the outer sleeve, possibly together with the nuts attached to it, has essentially the same length as the hollow spindle and the inner spindle, the telescopic feed unit can be moved together to form an extremely short unit and moved apart by a maximum amount.
  • Swivel device is particularly important if one A series of units, for example six units, serve as adjustable feet of a hexapod system.
  • the units in the area of their upper and lower ends must be articulated with a stationary and an adjustable level.
  • sleeves can be arranged at the upper and lower ends of the nut packets, which are slidably guided on the inner spindle and the hollow spindle. These sleeves, which are screwed to the end walls of the nuts, can perform radial support tasks.
  • FIGS. 1 and 2 show a longitudinal section through the telescopic feed unit according to the invention
  • FIG. 2 shows a section along the line 1 - 1 of FIG. 1.
  • the drive motor 1 is arranged on the drive side in parallel next to the telescopic feed unit 2.
  • the force is transmitted to the hollow drive shaft 7 via a drive pinion 5 and a toothed belt or a drive chain 4 and a gear 6.
  • the hollow drive shaft 7 is supported on one side in the housing 3 via a ball bearing 9 and a spacer ring 8.
  • the outer sleeve 13 is also firmly screwed to the housing 3.
  • the drive hollow shaft 7 has one or more longitudinal grooves 11 on the outside, in which a sliding bush 26 is slidably mounted. This sliding bush 26 is on arranged lower end of the inner part 12.1 of a hollow spindle 12 and can be moved out of the outer sleeve 13 relative to the axially fixed hollow drive shaft 7.
  • the double threaded nuts 15, 16 with internal thread are inserted from above and firmly connected to the hollow spindle.
  • the nuts 15, 16 are provided with guide rings 17 and 20, in which the inner spindle 14 with an external thread is arranged to be axially displaceable.
  • the balls 28 are mounted in the thread guide between the nuts 15, 16 and the spindle 14.
  • the inner spindle 14 also has a guide ring 22 at the drive-side end and a plate 19 at the outer end, which is optionally attached to the part to be moved.
  • the telescopic cover 18 is fastened between the outer plate 19 and the outer sleeve 13.
  • the double ball screw nuts 24, 25 are firmly connected with the same diameter. These nuts 24, 25 have an internal thread which interacts with the external thread of the hollow spindle 12 via the balls 28.
  • the guide rings 21 and 23 are fastened to the two ends of the nuts 24, 25.
  • an optical position measuring system 10 can also be installed, which detects the axial movement of the outer plate 19 through the hollow drive shaft 7 and with the hollow spindle 14.
  • the drive motor can also be arranged elsewhere, for example in the axial direction at the lower end of the hollow drive shaft 7.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Structural Engineering (AREA)
  • Transmission Devices (AREA)

Abstract

L'invention concerne une unité d'avance télescopique se présentant sous forme de mécanisme à broche filetée comprenant: a) un arbre creux d'entraînement (7) monté à une extrémité dans un boîtier et relié à un moteur d'entraînement (1), l'extrémité libre faisant saillie dans une unité télescopique (2); b) un manchon extérieur (13) entourant l'arbre creux d'entraînement (7) dans le sens axial, qui est solidaire du boîtier (3) et présente à son extrémité libre au moins un écrou (24, 25) taraudé; c) une partie intérieure (12.1) rotative d'une broche creuse (12), ladite partie étant montée entre l'arbre creux d'entraînement (7) et le manchon extérieur (13), de manière à pouvoir être déplacé dans le sens axial, ladite broche creuse (12) étant quant à elle reliée bloquée en rotation à l'arbre creux d'entraînement (7) par l'intermédiaire d'une douille coulissante (26) et présentant un filet extérieur; d) une partie extérieure (12.2) de la broche creuse (12) qui fait saillie au-dessus de l'extrémité de l'arbre creux d'entraînement (7) et présente un filet extérieur qui coopère avec le taraud de l'écrou (des écrous) (24, 25); e) une broche intérieure (14) à filet extérieur non rotative, montée de manière à être déplacée dans le sens axial dans l'arbre creux d'entraînement (7), f) les broches (12, 14) et les écrous (15, 16, 24, 25) étant assemblés pour former un mécanisme à broche filetée.
EP98912325A 1997-03-21 1998-02-18 Unite d'avance telescopique Withdrawn EP0929762A1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE1997111773 DE19711773C2 (de) 1997-03-21 1997-03-21 Teleskopvorschubeinheit
DE19711773 1997-03-21
PCT/EP1998/000924 WO1998043001A1 (fr) 1997-03-21 1998-02-18 Unite d'avance telescopique

Publications (1)

Publication Number Publication Date
EP0929762A1 true EP0929762A1 (fr) 1999-07-21

Family

ID=7824102

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98912325A Withdrawn EP0929762A1 (fr) 1997-03-21 1998-02-18 Unite d'avance telescopique

Country Status (4)

Country Link
EP (1) EP0929762A1 (fr)
AU (1) AU6720898A (fr)
DE (2) DE19711773C2 (fr)
WO (1) WO1998043001A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112576717A (zh) * 2019-09-29 2021-03-30 舟山青兰科技有限公司 一种具有新型丝杆螺母结构的传动装置

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10018742B4 (de) * 2000-04-15 2004-09-16 OKIN Gesellschaft für Antriebstechnik mbH & Co. KG Vorrichtung zum Verstellen von relativ zueinander beweglichen Teilen
AU2001260086B2 (en) * 2000-05-22 2005-04-14 Ideassociates (Iom) Limited Telescopically moving structure
DE50300113D1 (de) * 2002-02-26 2004-11-25 Baumueller Nuernberg Gmbh Umsetzanordnung mit Spindeltrieb
FR2839127B1 (fr) * 2002-04-24 2004-06-25 Transrol Dispositif d'actionnement a elements roulants intermediaires
US6779210B1 (en) 2003-03-18 2004-08-24 Hugh Kelly Elevating bed
AT8083U1 (de) * 2004-11-17 2006-01-15 Zimmermann Juergen Stelleinrichtung
US7985827B2 (en) 2005-06-17 2011-07-26 Eastman Chemical Company Polyester compositions which comprise cyclobutanediol having certain cis/trans ratios
DE102005040441B4 (de) * 2005-08-26 2009-01-15 Airbus Deutschland Gmbh Linearstellorgan zur Fernbetätigung von verstellbaren Komponenten an Windkanalmodellen
RU2381400C1 (ru) * 2008-10-14 2010-02-10 Евгений Николаевич Захаров Винтовая передача и способ ее изготовления
CN103072921B (zh) * 2013-01-25 2016-03-02 潍坊路加精工有限公司 筒式自动升降装置
DE102015104484B4 (de) 2015-03-25 2016-12-22 A. Mannesmann Maschinenfabrik Gmbh Vierstufiger Teleskopaktor mit Gewindetrieb
KR20170032933A (ko) 2015-09-15 2017-03-24 (주)남광 고하중용 기계식 다단 파워 실린더

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1518490A (en) * 1924-03-20 1924-12-09 Randall M Dixon Compound screw jack
GB240616A (en) * 1924-09-02 1925-10-08 Edward Johnson Improvements in lifting jacks
AT176649B (de) * 1952-07-04 1953-11-10 Engelbert Tallafuss Mechanische Hubeinrichtung
US3404580A (en) * 1967-04-18 1968-10-08 Sargent Industries Ball screw actuator
DE2844436A1 (de) * 1978-10-12 1980-04-24 Dickertmann Hebezeugfab Ag Hebebock
DE2904110A1 (de) * 1979-02-03 1980-08-07 Dickertmann Hebezeugfab Ag Hebe- und verschiebevorrichtung fuer lasten verschiedenster art
DE3910814A1 (de) * 1989-04-04 1990-10-11 Hasenclever Maschf Sms Schraubgetriebene linearhubeinheit
US5313852A (en) * 1992-11-06 1994-05-24 Grumman Aerospace Corporation Differential linear actuator
DE4426937C1 (de) * 1994-07-29 1995-11-30 Tech Kunststoffteile Und Werkz Hub- und Senkvorrichtung

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO9843001A1 *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112576717A (zh) * 2019-09-29 2021-03-30 舟山青兰科技有限公司 一种具有新型丝杆螺母结构的传动装置

Also Published As

Publication number Publication date
WO1998043001A1 (fr) 1998-10-01
AU6720898A (en) 1998-10-20
DE19880367D2 (de) 2000-05-25
DE19711773C2 (de) 1999-07-29
DE19711773A1 (de) 1998-09-24

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Effective date: 20010704

RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: A. MANNESMANN MASCHINENFABRIK GMBH. & CO. KG

Owner name: HUELLER HILLE GMBH

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