EP2064145A1 - Table à parallelogramme articulé - Google Patents

Table à parallelogramme articulé

Info

Publication number
EP2064145A1
EP2064145A1 EP07722202A EP07722202A EP2064145A1 EP 2064145 A1 EP2064145 A1 EP 2064145A1 EP 07722202 A EP07722202 A EP 07722202A EP 07722202 A EP07722202 A EP 07722202A EP 2064145 A1 EP2064145 A1 EP 2064145A1
Authority
EP
European Patent Office
Prior art keywords
pulley
traction
scissor lift
vertical
scissors
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Withdrawn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
EP07722202A
Other languages
German (de)
English (en)
Inventor
Reiner Woldrich
Frank Schmid
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.)
Konstruktionsbuero Wuk
Original Assignee
Frank Schmid 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 Frank Schmid GmbH filed Critical Frank Schmid GmbH
Publication of EP2064145A1 publication Critical patent/EP2064145A1/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Withdrawn legal-status Critical Current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
    • B66F7/00—Lifting frames, e.g. for lifting vehicles; Platform lifts
    • B66F7/06—Lifting frames, e.g. for lifting vehicles; Platform lifts with platforms supported by levers for vertical movement
    • B66F7/065—Scissor linkages, i.e. X-configuration

Definitions

  • the invention relates to Scherenhubtician with a sub-frame 1 and an upper frame 2, which is raised and lowered by between the two frames each outside scissor arms 6 and 10, wherein the scissor arms 6 and 10 intersect in a scissors axis 22 with one arranged on the frame lower and upper fixed bearing 16, 17 and a lower and upper movable bearing 3, 4 with at least one drive 28 and a traction means for lifting and lowering medium to very large loads.
  • Scissor lift tables are known in various designs.
  • a scissor lift consisting of a subframe and an upper frame, which can be raised and lowered by arranged between two frame pairs of scissors.
  • the scissor members cross each other in a pivot axis and the pair of scissors are pivotally connected to one at each end to the subframe and the upper frame in a fixed bearing. They are supported at the other end on the upper frame or upper frame displaceable in a movable bearing.
  • the drive is made by a traction means with the raising and lowering of the pairs of scissors takes place.
  • the drive is formed by a motor arranged in the interior of the subframe with a driven winding shaft, wherein on this winding shaft, a traction means can be wound, which extends from the winding shaft to the guided through the floating bearing on the corresponding frame end portion of the scissor members and which is formed so it exploits the pulley principle.
  • the object of the invention is a scissor table consisting of a subframe and an upper frame, which is raised and lowered by scissor arms arranged between the two frames, wherein the scissor arms intersect in a scissor axis, each with a lower and upper fixed bearing arranged on the frame and to provide a lower and upper floating bearing with a drive and a traction device, which is suitable for medium to very large loads, has a structurally simple design and a long life and can also be used under clean room conditions.
  • the object is achieved by the features of the first claim. Further expedient embodiments of the invention are the subject of the dependent claims.
  • the scissor lift table consists of a stable subframe 1 and an associated upper frame 2, which can be raised and lowered by scissor arms 6 and 10 respectively arranged externally between the two frames 1, 2.
  • the scissor arms 6 and 10 intersect in a scissors axis 22 and are each hinged to the frame 1, 2 lower and upper fixed bearings 16, 17 and a lower and upper movable bearing 3, 4 hinged to the lower frame 1 and upper frame 2.
  • at least one drive 28, which acts via an arranged traction means 9 on or in the lower frame 1, is connected to the movement of medium to very large loads.
  • one or more traction cables 26 are arranged according to the invention via one or more deflection rollers 12 with vertical or nearly vertical deflection roller axle 19 so that these engage the lower floating bearing axle 3.
  • the traction cables or the traction cables 26 are fastened internally between the subframe 1 on a lower fixed bearing axle 30 or on the subframe 1 via a novel traction cable swing arm 24 by means of a traction cable fastening strap 31.
  • the or the traction cables 26 are arranged on the other end via a pulley screw 15 wound up.
  • Erf ⁇ ndungsloom is coupled in a novel design, a drive motor 28 preferably with downstream reduction gear 33 via a correspondingly dimensioned traction sheave 14 by means of at least one traction device 9 to an inner sheave 13 with vertical or almost vertical pulley axis 18, wherein at the same time on the pulley 13 a pulley screw 15 form or positively connected.
  • the most important advantage of this novel embodiment according to the invention is an absolutely linear stroke during lifting and lowering of Scherenhubtiscb.es invention and caused by the constant traction caused by the construction and arrangement of the pulley 13 with the pulley screw 15 and the
  • the new scissor lift is further characterized by a structurally simple design and has a long service life. In addition, this design training is low maintenance and has almost no wearing parts.
  • the scissor lift according to the invention is constructed without hydraulic elements. It is therefore particularly suitable under Reinraurn Struktur.
  • a pulley 29 is arranged eccentrically arranged instead of a pulley screw 15 outside the pulley axis 18 on the sheave 13. This is particularly advantageous if the strokes are to be interpreted very long.
  • the deflection roller or deflection rollers 12 are arranged with a vertical or almost vertical Umlenkrollenachse 19 directly in a lower movable bearing support 21, which extends along the lower floating bearing axis 3.
  • the pulley 13 is designed for certain applications as a toothed disc and in this case the traction means 9 is designed as a toothed belt. This allows a smoother, non-slip lifting movement. In addition, in this case also larger tensile moments can be transmitted via the traction means.
  • the pulley 13 may also be formed as a chain disk, wherein the traction means is then designed as a chain. As a result, even larger tensile moments can be realized.
  • the structural design is designed so that the pulley 13 has a larger diameter than the pulley screw 15 or the pulley 29.
  • the drive motor 28 is arranged inside the subframe 1 or outside the subframe 1 on a separately fastened drive base plate 27 and the traction sheave 14 driven thereby has a vertical or nearly vertical traction sheave axis 25.
  • this construction has advantages in the installation at the site of the scissor lift.
  • Sheave screw 15 or the pulley 29 so specially designed that the pull cable 26 on the circumference of the pulley screw 15 and the eccentrically arranged pulley 29 in a continuous cable groove wound up and guided. Due to the structural design of the pulley screw 15 or the pulley 29 of the winding point 34 of the traction cable 26 is guided so that the traction cable 26 does not pass immediately adjacent or superposed cable layers when lifting the scissor lift. This in particular the pull rope and also leads to a completely uniform and smooth stroke movement of the scissor lift.
  • the traction means 9 is not designed as a circulating traction means but as a traction means 9 acting on one side.
  • the traction sheave 14 is formed on the drive motor 28 as a winding roller 35 on which the traction means is wound.
  • a scissor lift for large to very large loads from a sub-frame 1 and a top frame 2, which passes through between the two
  • Frame 1, 2 respectively arranged outside scissor arms 6 and 10 can be raised and lowered.
  • the scissor arms 6 and 10 intersect in a scissors axis 22 and are each formed with a arranged on the frame lower and upper fixed bearings 16, 17 and a lower and upper movable bearing 3, 4 with at least one drive 28 and a traction means, as is well known ,
  • one or more traction cable ropes 36 engage in a novel manner one or more pulleys 37 with vertical or almost vertical Umlenkrollenachse 38 on a novel massive double articulated lever 39 via a Switzerlandstoffseilschwinge 40 at a lower movable support beam 21 at.
  • the double folding lever 39 is mounted and fixed in the movable bearing support 21. At his about the loose bearing traverse.
  • run-up rollers 42 are arranged. These run-up rollers 42 are based in the lower stroke position and at the beginning of the lifting operation against a leg of the lower frame 1 of the scissor lift from.
  • the traction sheaves 36 (not shown in the drawing) are arranged wound on one or more winding drums 43, wherein the winding drums 43 together or individually via one or more separate winding axles 44 which are connected to one or more drive motors 28 and driven by them , In this embodiment, also known per se, the pulley principle is used to reduce the applied tensile forces.
  • FIG. 1 shows a preferred embodiment of a scissor lift table according to the invention in a three-dimensional representation according to claim 1
  • Figure 2 shows the side view of the preferred embodiments of an inventive
  • FIG. 3 shows the top view of the preferred embodiments of an inventive
  • Scherenhubticians Figure 4 shows the top view with another embodiment with a one-side windable traction means 9 of a scissor lift according to the invention
  • FIG. 5 shows another embodiment of the invention according to claim 11
  • FIG. 6 shows the arrangement of the eccentric sheave worm 15 and the position of the winding point under the sheave 13
  • the scissor lift according to the invention in Figure 1 consists of a stable sub-frame 1 and an associated upper frame 2. Between the two frames 1 and 2 are each outside on the long sides scissor arms 6 and 10 can be raised and lowered arranged.
  • the scissor arms 6 and 10 intersect in a scissors axis 22 and are each provided with a lower and upper fixed bearing 16, 17 arranged on the frame 1, 2 and a lower and upper floating bearing 3, 4 on the lower frame 1 and Upper frame 2 hinged.
  • four support posts 7 are arranged in the vicinity of the four corners of the subframe 1, on which the upper frame 2 is supported and thus can be made load-free relative to the lower frame 1.
  • a drive motor 28 with a reduction gear 33 is arranged outside of the scissor lift disc on a drive base plate 27, which may be connected to the subframe 1.
  • the traction sheave 14 is flanged to the reduction gear 33.
  • This traction sheave 14 is coupled to the sheave 13 via the traction means 9 (designed here as endless traction means).
  • the diameter of the pulley 13 is considerably larger than the diameter of the traction sheave 14, resulting in a further reduction of the drive speed.
  • the pulley 13 is rotatably supported between the upper pulley attachment 8 and the lower pulley frame 20 arranged below. These two components are each mechanically fixed to the sub-frame 1 and are based against this.
  • the pulley axis 18 is also arranged vertically.
  • the traction means 9 is preferably designed as a reinforced toothed belt.
  • Under the pulley 13, a pulley screw 15 is further arranged positively and non-positively and connected. In this pulley screw 15 two special traction cables 26 are inserted in a novel way and whiteness.
  • the Switzerlandseilschwinge 24 is movably guided in the Buchseilbefest Trentslasche 31. Due to the double design of the traction cables 26, the diameter of the traction cables 26 can be halved, thereby reducing the possible bending radius of the traction cables 26 and the diameter of the pulleys 12 and the size of the pulley screw 15 can be made smaller.
  • Both the Umlenkrollenachse 19 and the Switzerlandseilachse 23 are each formed vertically.
  • the guide rollers 12 with their vertical Umlenkrollenachse 19 are in the lower movable bearing beam 21, which is structurally reinforced and which extends along the lower floating bearing axis 3, stored.
  • the traction cables 26 are fastened internally between the lower frame 1 on the lower fixed bearing axle 30 or directly on the lower frame 1 via a novel traction cable swing arm 24 by means of a traction cable fastening strap 31.
  • the attachment point 32 is articulated mechanically fixed in this embodiment directly in a corner of the lower frame 1 here. By the rotation of the pulley 13, the traction cables 26 are wound on the pulley screw 15 on.
  • the pitch of the pulley screw 15 is dimensioned so that both a uniform lifting movement of the inventive scissor lift can be realized as well as the start in the difficult lowermost stroke position can be reliably guaranteed. At the same time this arrangement causes a uniform linear traction force without load peaks. This has a particularly positive effect on the life of the mechanically movable parts.
  • FIG. 6 shows a possible embodiment of a sheave worm 15 according to claim 9 and its arrangement under the sheave 13.
  • the pulley screw 15 instead of the pulley screw 15 according to the invention, it is also conceivable a normal dimensioned accordingly
  • Pulley 29 off-center that is offset from the pulley axis 18 eccentrically arranged. This arrangement of an eccentric pulley 29 is not graphically stocked in the figures. The effect is similar to the pulley screw 15. At the beginning of the lifting operation, the lifting movement is slow and a very large pulling force is exerted on the traction cables 26. By the reduction but the applied driving force is relatively small, whereby the drive motor 28 can be made correspondingly smaller.
  • Figure 3 shows the top view of the preferred embodiment of a scissor lift according to the invention and the position of inside the lower frame 1 flat sheave 13 the location and arrangement of each important axes, such as traction sheave axis 25, pulley axis 18, Switzerlandseilachse 23, floating bearing axis 3 and Umlenkrollenachse 19.
  • Figure 3 also shows a preferred spatial arrangement and training the storage of the pulley 13 by means of the pulley attachment 8 and the pulley frame 20, and the location and attachment of the traction cables 26 by means of
  • the upper frame 2 is here shown procedured in a higher lifting position.
  • FIG. 4 illustrates a plan view with another embodiment with a traction means 9, which can be wound on one side, of a scissor lift table according to the invention.
  • Traction means 9 is wound on the traction sheave 14 in a suitable manner. It is wound accordingly on the pulley 13 and fixed. If necessary, a chain can be used as traction means 9.
  • Figures 1 to 3 or 4 has the advantage that the lower stroke position can be chosen very low and also from the low stroke position starting the Scherenhubticians at relatively low drive motor power is possible.
  • Figure 5 shows another embodiment of the invention according to claim 11.
  • the scissors table for large to very large loads as usual from a sub-frame 1 and a top frame 2 (with upper Loslagertraverse 45), by between the two frames. 1 , 2 respectively arranged outside scissor arms 6 and 10 is formed liftable and lowerable.
  • the scissor arms 6 and 10 intersect in a scissors axis 22 and are each provided with a lower and upper fixed bearing 16, 17 and a lower and upper floating bearing 3, 4 with at least one drive 28 with reduction gear 33 and a traction means, here in the drawing not shown two traction cables 36 formed. In this way, two are used in a novel way
  • the starting lever 41 are retracted with the run-up rollers in a bulge of the lower movable support beam 21.
  • the double folding lever 39 is maximally spread and the Glasstoffseilschwinge 41 unfolded wide.
  • the two traction cables 36 are maximally unwound in this lower position of the scissor lift.
  • the two Switzerlandstoffseile 36 (not shown in the drawing) are each attached to the left and right of the rear leg of the subframe 1.
  • winding drums 43 are arranged on the winding axle 44 so that it is possible to drive via the reduction gear 33.
  • the Winding drums 43 are preferably equipped with means for guiding the rope in order to enable a uniform winding of the traction cable ropes 43. If necessary, the winding drums 43 can have one or more separate winding axles 44, which can in turn be connected to one or more drive motors 28 or reduction gears 33 and can be driven by them.
  • the starting lever 41 are first expanded with the run-up rollers 42 and press against the structurally reinforced front leg of the subframe 1. This significantly facilitates the start-up process.
  • the lifting movement then runs smoothly up to the upper lifting point by the further winding up of the traction sheaves 36, wherein first the double folding lever is moved maximally to its extended position, before the entire double lever system, 39
  • Ceiffenseilschwinge 40 is pulled backwards .
  • the pulley principle is used to reduce the applied during the lifting process tensile forces.
  • the main advantage of this design is the ability to lower the upper frame 2 as far down until it rests directly on the subframe 1. At the same time in this above technical solution, a considerably larger stroke compared to other previously known scissor lift tables can be achieved purely by mechanical means.

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Geology (AREA)
  • Mechanical Engineering (AREA)
  • Structural Engineering (AREA)
  • Forklifts And Lifting Vehicles (AREA)

Abstract

L'invention concerne des tables à parallélogramme articulé qui permettent de relever et d'abaisser des charges moyennes à très élevées. L'objet de l'invention est de proposer une table à parallélogramme articulé qui convient pour des charges moyennes à très élevées et qui possède une structure simple du point de vue de la construction et une longue durée de vie. Selon l'invention, la table à parallélogramme articulé est constituée d'un bâti inférieur (1) et d'un bâti supérieur (2) qui peut être relevé et abaissé par des bras de parallélogramme (6) et (10) qui se croisent et qui sont disposés à l'extérieur entre les deux cadres (1, 2). De manière innovante, des câbles de traction (26) sont disposés sur des galets de renvoi (12) dont l'axe (19) est vertical ou presque vertical de manière à s'engager sur l'axe (3) du palier libre inférieur. Les câbles de traction (26) sont fixés du côté intérieur entre le cadre inférieur (1) et un axe (30) de palier fixe inférieur ou sur le bâti inférieur (1) par une bielle (24) de câble de traction innovante, au moyen d'une patte (31) de fixation du câble de traction. En outre, les câbles de traction (26) sont disposés à l'autre extrémité de manière à pouvoir être enroulés par une vis (15) de poulie de câble. L'entraînement s'effectue à l'aide d'un moteur d'entraînement (28) suivi d'une transmission réductrice (33), par l'intermédiaire d'une poulie motrice (14) et au moyen d'un moyen de traction (9). Le moyen de traction (9) est accouplé à une poulie intérieure (13) de câble dont l'axe (18) est vertical ou presque vertical et en même temps, une vis (15) de poulie de câble est reliée en correspondance géométrique ou mécanique à la poulie (13) de câble. L'avantage essentiel de ce mode de réalisation est un déroulement absolument linéaire du déplacement lors du relèvement et de l'abaissement de la table à parallélogramme articulé selon l'invention. La table à parallélogramme articulé est caractérisée par une structure simple et présente une longue durée de vie.
EP07722202A 2006-04-07 2007-04-05 Table à parallelogramme articulé Withdrawn EP2064145A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE200610017428 DE102006017428B4 (de) 2006-04-07 2006-04-07 Scherenhubtisch
PCT/DE2007/000644 WO2007115564A1 (fr) 2006-04-07 2007-04-05 Table a parallelogramme articule

Publications (1)

Publication Number Publication Date
EP2064145A1 true EP2064145A1 (fr) 2009-06-03

Family

ID=38458023

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07722202A Withdrawn EP2064145A1 (fr) 2006-04-07 2007-04-05 Table à parallelogramme articulé

Country Status (3)

Country Link
EP (1) EP2064145A1 (fr)
DE (1) DE102006017428B4 (fr)
WO (1) WO2007115564A1 (fr)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103008079B (zh) * 2012-12-11 2015-01-28 宁波海伯商用机器有限公司 一种碎纸机的顶纸机构
CN107414753B (zh) * 2017-06-09 2023-03-10 深圳耀天齐技术服务有限公司 一种飞机起落架拆装设备
CN107985946B (zh) * 2017-12-27 2023-12-15 湖北迪迈威智能装备有限公司 一种双举升agv小车
CN108678456B (zh) * 2018-06-26 2024-06-21 刘婵 无避让立体车库
KR102140525B1 (ko) * 2020-06-10 2020-08-03 주식회사 케이크린 대차리프트
CN113457536B (zh) * 2021-07-08 2022-08-02 广西格美环保新材有限公司 一种循环升降组件及永磁驱动搅拌器
CN115024288B (zh) * 2022-06-20 2023-08-25 浙江国际海运职业技术学院 一种渔船起网装置
CN115285205B (zh) * 2022-08-26 2023-09-29 昆明五威科工贸有限公司 一种产品转运装填车

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Publication number Priority date Publication date Assignee Title
DE2635197A1 (de) * 1976-08-05 1978-02-09 Trepel Ag Scherenhebetisch
ES2003925A6 (es) * 1986-10-29 1988-12-01 Viaplana Guri Antonio Dispositivo elevador de plataformas horizontales
AT406150B (de) * 1995-01-11 2000-02-25 Ehrenleitner Franz Hubtisch
DE20216478U1 (de) * 2002-01-30 2003-02-27 Foerdersysteme Engineering Gmb Durch Seile gesteuerter Hubtisch
DE10209387C1 (de) * 2002-03-02 2003-05-15 Heckert Gmbh Scherenhubtisch
DE20302373U1 (de) * 2003-02-14 2003-05-08 Flexlift Hubgeraete Gmbh Scherenhubtisch
DE202005004667U1 (de) * 2004-03-22 2005-05-25 Ade-Werk Gmbh Hubvorrichtung

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2007115564A1 *

Also Published As

Publication number Publication date
WO2007115564A1 (fr) 2007-10-18
DE102006017428A1 (de) 2007-10-18
DE102006017428B4 (de) 2008-01-24

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