EP1710202A2 - Dispositif de levage - Google Patents

Dispositif de levage Download PDF

Info

Publication number
EP1710202A2
EP1710202A2 EP06111474A EP06111474A EP1710202A2 EP 1710202 A2 EP1710202 A2 EP 1710202A2 EP 06111474 A EP06111474 A EP 06111474A EP 06111474 A EP06111474 A EP 06111474A EP 1710202 A2 EP1710202 A2 EP 1710202A2
Authority
EP
European Patent Office
Prior art keywords
drive
lifting device
lifting
tube
bearing
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Withdrawn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
EP06111474A
Other languages
German (de)
English (en)
Other versions
EP1710202A3 (fr
Inventor
Klaus Reitzig
Martin Oechler
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.)
Ludwig Ehrhardt GmbH
Original Assignee
Ludwig Ehrhardt 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 Ludwig Ehrhardt GmbH filed Critical Ludwig Ehrhardt GmbH
Publication of EP1710202A2 publication Critical patent/EP1710202A2/fr
Publication of EP1710202A3 publication Critical patent/EP1710202A3/fr
Withdrawn legal-status Critical Current

Links

Images

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

Definitions

  • the invention relates to a lifting device telescopically with one another by means of a lifting drive and extendable tubes.
  • Such a lifting device is known from a brochure entitled M 6.9106 issue 6/02 of Römheld GmbH, Römheld No 1-5, D-35317 Laubach.
  • linear actuators are driven manually-hydraulically, usually by pedal, hydraulically or by electric motor.
  • electromotive lifting devices as shown in said brochure, in the foreground, although some of the developments of the invention are also advantageously used for manual hydraulic or hydraulic lifting devices.
  • Lifting devices are used wherever workpieces, fixtures or assemblies need to be lifted for machining or assembly. For example, assemblies for their assembly can always be raised or lowered to a convenient for ergonomic work on the assembly height. Especially in the automotive industry, it happens that certain components or assemblies from below, for example, must be mounted on the body and raised for this purpose with lifting devices. It often depends on a millimeter accurate lifting to z. B.
  • lifting devices are as low as possible in the retracted position in order to be able to lift objects from a low height or lower objects to a low height.
  • the lifting devices should stand up on the ground, without recesses in the ground for drives or the like must be embedded in the ground. Therefore, the lifting devices mentioned have a laterally flanged motor, which has a transmission, which is also required for the reduction of the usually fast-running electric motors.
  • the lateral engine is also often annoying, especially when the lifting devices, as mentioned above, are close together or people have to move between them.
  • the invention is based on the problem to provide a lifting device which corresponds to the requirements outlined above and also has a drive with a small volume.
  • the lifting device is characterized in that the lifting drive has a drive part with a torque motor.
  • Torque motors in turn have a very low volume, so that a drive with the torque motor easily under the actual lifting device, where the transmission is arranged in the known lifting devices, can be positioned without the height increases thereby compared to the transmission.
  • Drives with torque motors can be made so small that they correspond in their outer dimensions of the outer tube of the lifting device and are aligned with it. Torque motors also deliver a high torque at low speed, so that a separate transmission can be completely eliminated. So there are no more lateral drive means provided. An optionally still required transmission or reduction can be provided solely on the slope of the spindle drive.
  • Drives with Torque motors start very dynamically and can also be decelerated dynamically so that the height of the lifting device can be adjusted very precisely. This is the lifting device according to the invention even with a parallel connection of several lifting devices to good.
  • a drive shaft is mounted on the one hand by a thrust bearing and a separate radial bearing and on the other hand by an angular contact ball bearing.
  • This thrust bearing is able to optimally absorb the forces introduced by the actual lifting device due to the weight of the workpiece to be lifted.
  • the angular contact ball bearing is arranged, it can be easily positioned on the storage to the stator in the drive part.
  • the bearing of the drive shaft is biased by means of shaft nut.
  • the shaft nut preferably acts on the angular contact ball bearing.
  • a drive for the actual Haub preferably serves a spindle drive, in particular such that the torque motor rotatably drives a lifting spindle, which cooperates with a spindle nut.
  • the tubes are telescopically two or more stages, wherein a first tube is fixed, a second tube with a first stroke speed and retractable and another tube via a geared connection with the second tube with a second, higher lifting speed and retractable.
  • a particularly low volume is obtained when a chain is guided over movable together with the second tube pinion, with a run of the chain fixed and attached to the other run of the chain the other tube.
  • This also establishes a simple geared connection, which further supports the achievement of the aforementioned requirements for lifting devices.
  • the fixed Trumm is fixed by means of a pull rod, which is connected to the drive part.
  • the pull rod can be arranged within the further tube. This has the advantage that the chain and the parts moving with it are covered by the further tube and so are not accessible to an operator. This avoids accidents.
  • the lifting device shown in Fig. 1 comprises a foot 10 and a top plate 11.
  • a drive part 12 and on this drive part 12 an outer square tube 13 is mounted on the foot 10.
  • the outer square tube 13 is thus fixed.
  • a central square tube 14 and in this middle square tube 14, in turn, an inner square tube 15 is slidably guided in the axial direction.
  • the top plate 11 is mounted on the inner square tube 15, the top plate 11 is mounted.
  • there is a telescopic device made of square tubes 13, 14, 15 guided into one another which of course can also be supplemented by further square tubes in order to obtain a higher stroke.
  • the cross-sectional dimensions (diameter) of outer square tube 13 and drive part 12 correspond to one another.
  • Drive part 12 and square tube 13 are aligned with one another.
  • the drive part 12 is shown in more detail in Fig. 3.
  • the drive part 12 has a stator 17 arranged between two bearing disks 16, which is excited via coils 18 in a manner known for electric drives.
  • an angular contact ball bearing 23 is disposed in the head plate 11 adjacent bearing disc 16 which receives both axial and radial forces. This storage is biased by an angular contact ball bearing 23 associated with the shaft nut 43.
  • a rotor 24 relative to the drive shaft 19 is mounted non-rotatably on this.
  • the rotor 24 has a plurality of circumferentially distributed permanent magnets 25, which cooperate with the stator 17 as an electric drive. They form a torque motor.
  • the drive member 12 is still associated with a brake 26, which may also be omitted in self-locking designed Hubspindel 20.
  • the brake 26 has a non-rotatably connected to the drive shaft 19 verbundnene brake plate 27 which is lifted by electromagnets of a brake disk 28 and pressed in the event of power failure by means of compression springs against the brake disk 28. This creates an effective (emergency) brake 26 in the event of a power failure.
  • a rotary encoder 29 is still provided on the drive shaft 19, which measures the speed and the angle of rotation. This serves to control the torque motor, in particular for a synchronization control, when several lifting devices are used in parallel.
  • the drive part 12 with brake 26 and rotary encoder 29 is part of a lifting drive 30, which is shown in more detail in Fig. 2 and Fig. 4 to 7 in the retracted position.
  • a spindle nut 31 On the lifting spindle 20 runs a spindle nut 31, which is arranged in the retracted position shown on the drive part 12 facing the end of the lifting spindle 20.
  • the spindle nut 31 is connected via a tube 32 with a head piece 33, which projects beyond the lifting spindle 20. Spindle nut 31 and head 33 are thus raised or lowered by rotating the lifting spindle 20.
  • Both the spindle nut 31, and the head piece 33 are assigned to both sides of the lifting spindle 20 of bearing bolts directed away from each other 34, on each of which a pinion 35 is rotatably mounted.
  • a circumferential chain 36 is placed on each on the same side of the lifting spindle 20 arranged pinion 35.
  • a Trumm 37 is fixed. This is done via a pull rod 38 which is connected on the one hand with the drive part 12.
  • the pull rod 38 has a finger 39, which engages in a link of the chain 36 and holds it so tight.
  • a driver 41 is attached.
  • the middle square tube 14 is connected via a driver plate 42 with the spindle nut 31, that is moved at the speed of the spindle nut 31.
  • the inner square tube 15 is connected to the driver 41. If now the spindle nut 31 is moved with tube 32 and head piece 33, a strand 37 of the chain 36 is held due to the tie rod 38.
  • the chain 36 passes on the basis of the pinion 35, so that the other Trumm 40 and with it the driver 41 and the inner square tube 15 with double speed the spindle nut 31 is moved. This can be used advantageously not only in the spindle drives described here, but also in driven via pressure medium cylinder lifting devices.

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Geology (AREA)
  • Mechanical Engineering (AREA)
  • Structural Engineering (AREA)
  • Types And Forms Of Lifts (AREA)
  • Transmission Devices (AREA)
  • Forklifts And Lifting Vehicles (AREA)
EP06111474A 2005-04-08 2006-03-21 Dispositif de levage Withdrawn EP1710202A3 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE200510016430 DE102005016430A1 (de) 2005-04-08 2005-04-08 Hubvorrichtung

Publications (2)

Publication Number Publication Date
EP1710202A2 true EP1710202A2 (fr) 2006-10-11
EP1710202A3 EP1710202A3 (fr) 2007-11-14

Family

ID=36615731

Family Applications (1)

Application Number Title Priority Date Filing Date
EP06111474A Withdrawn EP1710202A3 (fr) 2005-04-08 2006-03-21 Dispositif de levage

Country Status (2)

Country Link
EP (1) EP1710202A3 (fr)
DE (1) DE102005016430A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108190784A (zh) * 2018-01-31 2018-06-22 湖北环电磁装备工程技术有限公司 一种无框组合式永磁同步直线电机直驱的汽车维修举升机
CN108675190A (zh) * 2018-07-18 2018-10-19 珠海格力智能装备有限公司 升降装置及模压发泡机
US20220348449A1 (en) * 2019-04-05 2022-11-03 Oshkosh Corporation Scissor lift descent control systems and methods

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104756627A (zh) * 2015-03-06 2015-07-08 李阳铭 一种带推力轴承支承的传动式粉垄箱
CN106241640A (zh) * 2016-08-30 2016-12-21 铁岭长天机电有限责任公司 多丝杠同步电动升降杆

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3505842A1 (de) 1984-02-20 1985-08-22 Magnetic Elekromotoren AG Liestal, Liestal Teleskopsaeule mit elektromotorischem antrieb und verwendung derselben

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2233740A1 (de) * 1972-07-08 1974-01-24 Richter Hans Treppensteigeeinrichtung
US5586619A (en) * 1994-11-25 1996-12-24 Young; Roland O. Lifting apparatus
DE19608171A1 (de) * 1996-03-04 1997-09-11 Herbert Riede Säulenartige Hub- und Stützvorrichtung

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3505842A1 (de) 1984-02-20 1985-08-22 Magnetic Elekromotoren AG Liestal, Liestal Teleskopsaeule mit elektromotorischem antrieb und verwendung derselben

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108190784A (zh) * 2018-01-31 2018-06-22 湖北环电磁装备工程技术有限公司 一种无框组合式永磁同步直线电机直驱的汽车维修举升机
CN108675190A (zh) * 2018-07-18 2018-10-19 珠海格力智能装备有限公司 升降装置及模压发泡机
CN108675190B (zh) * 2018-07-18 2024-04-12 珠海格力智能装备有限公司 升降装置及模压发泡机
US20220348449A1 (en) * 2019-04-05 2022-11-03 Oshkosh Corporation Scissor lift descent control systems and methods
US11787679B2 (en) * 2019-04-05 2023-10-17 Oshkosh Corporation Scissor lift descent control systems and methods
US11945704B2 (en) 2019-04-05 2024-04-02 Oshkosh Corporation Scissor lift descent control systems and methods

Also Published As

Publication number Publication date
EP1710202A3 (fr) 2007-11-14
DE102005016430A1 (de) 2006-10-12

Similar Documents

Publication Publication Date Title
EP3274611B1 (fr) Actionneur télescopique à quatre éléments, pourvu d'un entraînement par filetage
EP3160804B1 (fr) Générateur de pression pour système de freinage hydraulique de véhicule
DE102008033887B4 (de) Teleskop-Doppelspindelantrieb
DE29919214U1 (de) Elektromotorischer Möbelantrieb
EP2655242A1 (fr) Dispositif d'appui pour véhicules de chantier
DE4337867A1 (de) Differential-Linearaktuator
EP0132442A1 (fr) Appareil de positionnement à entraînement par broche
WO2012072389A1 (fr) Cric
EP2594157A2 (fr) Colonne élévatrice télescopique d'une partie de meuble
EP1710202A2 (fr) Dispositif de levage
DE102014220728A1 (de) Betätigungsvorrichtung mit Spindeltrieb und Rotationslagesensor
DE202006008307U1 (de) Hubvorrichtung mit Gewindestangen
EP1820600A1 (fr) Broche de perçage pour centre de traitement horizontal ou vertical dotée d'un entraînement intérieur à puissance dérivée
DE102009055739A1 (de) Umformmaschine, insbesondere Servopresse
EP1097657B1 (fr) Unité téléscopique d'entraínement
EP2141112A1 (fr) Dispositif de réglage destiné à positionner une charge
DE102004009913A1 (de) Motor-Fluidischer Antrieb, insbesondere für Dreh-, Schwenk- oder Linearaantriebseinheiten sowie Verfahren hierfür
EP1956183B1 (fr) Tête de serrage pour un élément de tiges
DE3118805C2 (de) Linearantriebseinheit
DE102018205781B4 (de) Antriebseinrichtung
DE2320556A1 (de) Einrichtung zum abziehen des zylinders und der schneckenbuchsen an einem plastverarbeitungsextruder, insbesondere einem doppelschneckenextruder
DE102008064294B4 (de) Hubvorrichtung für ein Schiffsteuerhaus
EP3581817B1 (fr) Dispositif de levage télescopique
DE20210836U1 (de) Teleskopierbarer Linearantrieb
DE102010053278A1 (de) Spindelantrieb für Funktionselement eines Kraftfahrzeugs

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC NL PL PT RO SE SI SK TR

AX Request for extension of the european patent

Extension state: AL BA HR MK YU

RIC1 Information provided on ipc code assigned before grant

Ipc: B66F 3/10 20060101AFI20070329BHEP

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC NL PL PT RO SE SI SK TR

AX Request for extension of the european patent

Extension state: AL BA HR MK YU

17P Request for examination filed

Effective date: 20071213

AKX Designation fees paid

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC NL PL PT RO SE SI SK TR

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 20090703