EP3414201B1 - Hubvorrichtung - Google Patents

Hubvorrichtung Download PDF

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Publication number
EP3414201B1
EP3414201B1 EP17705307.1A EP17705307A EP3414201B1 EP 3414201 B1 EP3414201 B1 EP 3414201B1 EP 17705307 A EP17705307 A EP 17705307A EP 3414201 B1 EP3414201 B1 EP 3414201B1
Authority
EP
European Patent Office
Prior art keywords
lifting
winding apparatus
drive
roller
winding
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.)
Active
Application number
EP17705307.1A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP3414201A1 (de
Inventor
Roland Heinz Aßmann
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.)
Cemtec Cement And Mining Technology GmbH
Original Assignee
Cemtec Cement And Mining Technology 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 Cemtec Cement And Mining Technology GmbH filed Critical Cemtec Cement And Mining Technology GmbH
Publication of EP3414201A1 publication Critical patent/EP3414201A1/de
Application granted granted Critical
Publication of EP3414201B1 publication Critical patent/EP3414201B1/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C19/00—Cranes comprising trolleys or crabs running on fixed or movable bridges or gantries
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C13/00—Other constructional features or details
    • B66C13/04—Auxiliary devices for controlling movements of suspended loads, or preventing cable slack
    • B66C13/06—Auxiliary devices for controlling movements of suspended loads, or preventing cable slack for minimising or preventing longitudinal or transverse swinging of loads
    • 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
    • B66F7/0616—Suspended platforms, i.e. the load platform hangs from the base

Definitions

  • a generic device is from the DE 43 26 673 A1 known. Similar and further solutions show the DE 697 19 001 T2 that FR 2 757 441 A1 that DE 101 32 350 A1 and the DE 102 57 108 A1 .
  • vehicle parts can be conveyed along an electric monorail system, the height of the vehicle part to be transported being adjustable above the floor. Chains or ropes are used as traction elements, which are wound on appropriate rope drums or a chain hoist to adjust the height of the vehicle part above the ground.
  • a separate device is used to stabilize the lifting element relative to the carrier.
  • This known solution disadvantageously has a relatively large overall length and has a relatively high weight. Furthermore, the position of the lifting element varies with the lifting height.
  • EP 1 794 078 B1 Another solution shows that EP 1 794 078 B1 .
  • This device also has a relatively large overall length and a high weight.
  • the structure is relatively complex and offers a variety of setting options.
  • a further disadvantage here is the relatively complex manufacture and assembly of the device and poor accessibility for maintenance purposes.
  • the lifting device and the stabilizing device are designed separately.
  • the FR 2 295 904 A1 discloses a similar device that provides ropes for lifting a lifter; a motor drives all lifting elements.
  • two motors are provided according to this document, which are coupled together via a differential gear.
  • the present invention is therefore based on the object of developing a device of the type mentioned in such a way that a light and universally usable lifting device of the generic type is created, which has compact dimensions and allows stable guidance of the lifting element relative to the carrier.
  • the concept used should continue to be largely independent of the lifting height and the application.
  • the solution to this problem by the invention is characterized in that a first drive for driving the at least one first winding device and a second drive for driving the at least one second winding device are provided, the first drive comprising a drive motor which is connected via an angular gear , preferably via a bevel gear, drives at least one shaft which drives a roller of the first winding device via a gear element, and wherein the second drive comprises a drive motor which drives a roller of the second winding device via a spur gear, parallel shaft or planetary gear.
  • the width is preferably at least 200 times, particularly preferably at least 300 times and very particularly preferably at least 500 times the thickness. However, the width is often at least 1,000 times the thickness.
  • a band-shaped structure is to be used as the tension element, which results in the previously known solutions with ropes or chains, possibly also with narrow belts.
  • Wide flat belts for example, or other sheet-like and windable webs, which in particular are limp in bending, are used as tension elements.
  • the tension elements do not have a constant width over the entire height to be used, in order to take into account the structural conditions.
  • the traction elements are in particular widened towards one end.
  • the tension elements do not have a constant thickness over the entire height that is used.
  • the tension element on the end attachment can be reinforced and thus be made thicker than in the other area.
  • the basis for the width-thickness ratio mentioned is the flat base material of the tension element.
  • a further preferred embodiment of the invention provides that the width of the tension elements is selected as a function of the external dimensions of the carrier or lifting element. Accordingly, the width of the tension elements is at least 50% of the external dimensions of the carrier and / or the lifting element at the location of the tension element. In this regard, optimal values for the width of the tension element are between 50% and 100% of said external dimensions. Especially when using drums with an integrated drive, the upper area can be easily realized.
  • rollers of two winding devices each being arranged parallel to one another Have axes of rotation and wherein the axes of rotation of the rollers of two winding devices are perpendicular to the axis of rotation of the rollers of two further winding devices.
  • first drive for driving two winding devices and the second drive for driving two further winding devices are provided.
  • Another preferred embodiment of the invention provides that three winding devices are provided, two rollers of the first and second winding device having axes of rotation arranged parallel to one another and the axis of rotation of the roller of the third winding device being perpendicular to the axis of rotation of the first and second winding device.
  • the rollers of the first and second winders and the roller of the third winders preferably form an H-shaped structure when viewed from above.
  • the tension elements consist of textile material, in particular of a fabric web, or of metal, in particular of sheet metal or a mesh.
  • a further preferred embodiment of the invention provides that a synchronization element for the synchronous movement of the two drives is arranged between the first drive and the second drive.
  • a synchronization element for the synchronous movement of the two drives is arranged between the first drive and the second drive.
  • four drives are also conceivable. The same applies to four slip-on gears.
  • the transmission element is preferably a belt transmission or a chain transmission.
  • the spur gear is preferably a parallel shaft gear.
  • a gear element in particular a belt gear or a chain gear, is preferably arranged between the spur gear and the two rollers of the winding device.
  • Helical gearboxes and parallel shaft gearboxes can be used, each with shafts with parallel axes.
  • the present invention thus aims to provide an advantageous lifting sling of an electric monorail system with which it is possible to lift loads in a stable manner, primarily relating to vehicle parts (bodies, engines) which are to be conveyed in assembly lines; however, other applications, e.g. B. lifting devices for containers possible.
  • a suitable mounting element is attached to the carrier, for example a 4-arm hanger or a 2-arm hanger with corresponding mounting areas for the component to be carried (e.g. body mount).
  • Elements can also be provided here which allow the component to be conveyed to be pivoted about the desired axes.
  • the present invention relates to a device for lifting and stabilizing loads, in particular a hanger for vehicles or vehicle parts, comprising a carrier (upper frame) and a lifting element arranged underneath (lower frame), a load-bearing load-bearing device, which is preferably attached to the lower frame wide straps or textiles (tension elements) is adjustable in height and which can be raised or lowered by means of at least two (or, for safety reasons, preferably at least three) rollers (drums), which are arranged orthogonally to one another in the case of three or four rollers.
  • a load-bearing load-bearing device which is preferably attached to the lower frame wide straps or textiles (tension elements) is adjustable in height and which can be raised or lowered by means of at least two (or, for safety reasons, preferably at least three) rollers (drums), which are arranged orthogonally to one another in the case of three or four rollers.
  • the device is particularly suitable for movable devices, e.g. coupled to an electric monorail system, a so-called “power & free conveyor” or to hanging platforms, so that autonomous, self-propelled units are created.
  • the attachment of the tension elements (straps) to the subframe is preferably statically determined, so that a uniform or defined distribution of the load on the tension elements (straps or textiles) is achieved.
  • the tension elements can also be realized using a wide, thin metal band or metal mesh.
  • the lifting means can be equipped with vertical and diagonal tension members for targeted power transmission. They can be provided with a sliding layer and / or a wear-resistant layer.
  • the lifting means can be provided with one or more conical, round or rectangular guide grooves for centering purposes.
  • the rollers (drums) for winding up the tension elements can be designed spherically and / or be provided with conical ends in order to achieve a central winding of the tension elements.
  • rollers drums
  • the rollers can be mechanically coupled to one another.
  • the lifting drives are coupled on the primary side in order to reduce the torques.
  • the individual rollers can be driven individually, but can also be coupled to one another via a so-called electronic shaft.
  • the drive or drives for the rollers can also be integrated into these.
  • the subframe can be equipped with an interchangeable adapter, which allows the attachment of different hangers.
  • the hanger receptacles can also be designed so that they can be swung out to the side.
  • An embodiment is also possible in such a way that the load to be carried can be pivoted about its longitudinal or vertical axis.
  • the lifting device can also be equipped with one or more safety brakes.
  • a load measuring or limiting device can be integrated.
  • the lifting means can also be provided with a load measuring device.
  • an orthogonal arrangement of the rollers (lifting drums) in combination with one or more spur, parallel shaft or planetary gears and / or with one or more angular gears for driving them is possible. This makes it possible to dispense with a separate angular gear.
  • the lifting drums can be made of lightweight materials such as aluminum, GRP or carbon.
  • the transmissions can reduce the torques of the drives by means of an appropriate gear ratio and act like reeving.
  • the lifting means for reducing the torque of the lifting drives can be reeved one or more times.
  • the device can also be equipped with a detection of the lifting height.
  • the lifting means can also be printed with a visual display of the lifting height to check the lifting height.
  • the lifting means can continue permanently or temporarily with additional information such. B. printed on assembly steps, the vehicle type.
  • the lifting means can also be equipped with illuminants and / or with a reflective layer and thus contribute to the illumination of the work areas.
  • the upper and / or lower frame can be made accessible for easier maintenance.
  • the proposed solution thus enables a compact and light construction by combining suspension means and stabilizing device and the drive-technical integration of the lifting device in the upper frame.
  • the preferably three or four tension elements are each designed, in particular, as wide, thin winding belts and are wound onto three rollers arranged in an H shape or four all around.
  • a carbon version of the rollers enables further weight savings without adversely affecting durability or stability.
  • the stabilizing effect is achieved through a membrane effect of the tension elements, which is generated by the weight of the lower frame and the load to be carried.
  • Different lifting paths adapted to the respective application can be realized simply by lengthening or shortening the tension elements without the basic construction of the proposed device having to be changed or adapted. This enables a high degree of standardization to be realized, a requirement that is repeatedly raised in the automotive industry.
  • the number of tension elements is manageable with three or four, whereby two tension elements or combinations of tension elements are arranged redundantly and can take over the securing of the complete lifting load in the event of failure of a tension element or a drive train.
  • a flat or spur gear and a bevel gear motor are preferably combined to actuate the lifting device.
  • the two drives are preferably coupled on the primary side via an elastic or cardan shaft. This ensures that both drives run synchronously.
  • a limitation of the lowering speed, for. B. executed as a centrifugal brake be provided and / or attack an additional safety brake.
  • the moments on the primary side remain low, which has a positive effect on the dimensioning of the power transmission elements or the safety elements and also contributes to a reduction in weight.
  • the power transmission between drives and winding rollers enables an additional ratio to be introduced. As a result of this and due to the relatively small diameter of the winding rollers, the required drive torque is reduced to the lifting drives, as a result of which the gearbox size and thus the weight can be reduced.
  • Both 2-arm hangers, 4-arm hangers, swivel arms or a swivel frame can be adapted to the subframe.
  • the solution can be integrated in stationary facilities as well as in various conveyor technology concepts. So both monorail monorail and double monorail solutions are conceivable.
  • the facility could also be integrated into so-called "power & free systems" or hanging push platform concepts.
  • step mats or step plates in the lower and / or upper frame in order to improve the accessibility for maintenance work. Since the inner frame of the subframe otherwise has no built-in components due to the design, it can also be inserted with a dimensioned lifting platform between the mounting crossbeams, which considerably simplifies maintenance work on the lifting device - especially in contrast to the previously known solutions.
  • the axes of rotation of the rollers of the winding devices mentioned are perpendicular to one another. This is of course to be understood to mean that said rectangularity is given in one of the views, in particular in the top view of the device. It should also be mentioned that, of course, slight deviations from the rectangularity are also covered by the inventive concept, for example if the axes enclose an angle of only 87 °.
  • a lifting device 1 is shown, which is arranged to be movable in a horizontal direction along a track 2 in the form of a rail. Components can be conveyed in the horizontal direction with the lifting device 1, for which purpose the lifting device 1 is moved along the path 2. Said movement can be active or passive, i. H. 2 motorized or non-motorized drive rollers can be provided in the area of the web.
  • the lifting device 1 essentially comprises a carrier wagon 3 arranged at the top (upper frame) and a lifting element 4 arranged at the bottom (subframe). H. raise or lower.
  • a hanger 31 is fastened to the lifting element 4 and serves to receive a component, for example a body part.
  • the lifting device 5 comprises four winding devices 10, 11, 12 and 13, each of which comprises a driven roller 14, 15, 16 and 17, each roller 14, 15, 16, 17 opening and closing a pulling element 6, 7, 8 and 9 unwinds when it is rotated about its respective axis of rotation a 1 , a 2 , a 3 or a 4 (see here Figure 4 ).
  • the tension elements 6, 7, 8 and 9 are designed as flat webs and in particular as wide belts, which can for example consist of textile material or a metallic mesh.
  • Figure 1 is shown schematically that each tension element 6, 7, 8, 9 a Width B and a thickness D.
  • the width mentioned is preferably at least 100 times as large as the thickness D, in particular at least 500 times as large.
  • a first drive 18 which has a drive motor 21 which drives a bevel gear 22. From the bevel gear 22, two shafts 23 and 24 are driven, via which in turn one gear element 25 and 26 is driven; the gear element 25, 26 is preferably a chain or belt transmission. Hereby the rollers 14 and 15 are rotated synchronously.
  • a second drive 19 which has a drive motor 27 with which a spur gear 28 is driven.
  • the spur gear 28 in turn drives two gear elements 29 and 30 - again preferably designed as chain or belt gears - with which the rollers 16 and 17 are rotated synchronously.
  • the two drives 18 and 19 are in turn synchronized relative to one another, for which purpose a synchronization element 20 is provided.
  • a shaft section is provided for this purpose, which connects the two drive motors 21 and 27 to one another, so that their shafts can only rotate synchronously.
  • a special embodiment of the invention described below deals with a statically determined belt length compensation, which can be provided as an option in the lifting device described.
  • the lifting device 1 (lifting sling) consists - as described - of the carrier 3 (upper frame) and the lifting element 4 (lower frame).
  • the subframe is held by the tension elements 6, 7, 8, 9.
  • the winding devices are expediently arranged in the upper frame 3. This means that the belt end is attached to the subframe 4. Thickness tolerances of the tension elements (lifting belts), differences in diameter of the winding drums, small translation errors, etc. can result in different belt lengths. Furthermore, during assembly it is difficult to adjust the belt length so that a desired load distribution is achieved.
  • the configuration described below ensures a predefined load distribution on the tension elements, small differences in length of the tension elements being compensated for.
  • the belt end attachment both by winding several layers on a roll, as well as by forming loops in the belts.
  • a type A solution is referred to below that in Figure 7 is shown as a solution according to type B that in Figure 8 is shown.
  • Figure 9 a detail of the arrangement is shown. It is in the Figures 7 to 9 the concept described above is provided, with three tension elements 6, 7, 8 (in the Figures 7 and 8th only indicated with regard to their position) are wound on rollers in an H-shaped manner
  • type A and type B are not equally suitable for both types of belt end attachment. While type A can be used with both types of belt end attachment mentioned, with type B the belt must be wound up on a rotating belt end reel.
  • the central element of the belt length compensation are two eccentrics 32, which are mounted centrally in the subframe 4.
  • the longitudinally arranged belt end roller 33 is mounted in a rocker 34, the axis of rotation W of which is mounted eccentrically to the axis of rotation E of the eccentric 32.
  • the belt tensile force on the longitudinally arranged belt end roller 33 creates a left-turning torque on the eccentrics 32. This torque is in equilibrium with a right-turning torque which two pull rods 35, 36 exert.
  • These tie rods 35, 36 are each either with two further rockers 37, 38 of the transversely arranged belt end rollers 39, 40 (according to type A Fig.
  • the torque direction can also act in the opposite direction to the description (cf. Fig. 7 and Fig. 8 ).
  • the tensile force of the tie rods 35, 36 increases proportionally with the belt tensile force of the transverse belts 6, 7 and thus the clockwise torque.
  • the anti-clockwise torque in turn is proportional to the tensile force of the longitudinal belt 8 (s. Fig. 5 ).
  • the balance of the eccentrics 32 is established with a certain division of the lifting load between the longitudinal belt 8 and the two transverse belts 6, 7. If the lever ratios are identical, the longitudinal belt 8 takes up half the lifting load. The other half is shared by the two cross belts 6, 7.
  • a tractive force distribution can be specified 30% across / 40% lengthways / 30% across.
  • the desired position of the eccentric 32 is given when the axis of rotation of the eccentric E and the axis of rotation W of the rocker of the longitudinally arranged belt end roller 33 lie in a horizontal plane.
  • Small changes in the belt length during the winding process or due to different belt stretches can compensate for the eccentric 32 by a small rotary movement.
  • the longitudinally arranged belt end roller 33 and the two transverse belt end rollers 39, 40 behave in an equivalent manner. This means that an expansion of the longitudinal belt 8 can be compensated for by a rightward rotation of the eccentric 32, which corresponds to a lifting movement of the belt end rollers on the transverse belts 6, 7. As a result, a new balance can be achieved while largely maintaining the specified load distribution.
  • the rocker 37, 38 of the transversely arranged belt end roller 39, 40 ensures that the longitudinal belt 8 is loaded symmetrically, even if, for example, the two transverse belts 6, 7 wind up slightly asymmetrically or stretch slightly differently due to an asymmetrical load distribution in the longitudinal direction. Longitudinal forces acting on the longitudinal belt 8 can nevertheless be absorbed via the transverse rigidity of the longitudinal belt.
  • the tie rods 35, 36 are each connected to a rocker 37, 38 of the transverse rollers 39, 40.
  • the cross rollers can be rotated during the assembly process to wind up the cross belts. About three windings are customary to relieve the belt end fastening on the belt end rollers via friction. After the assembly process, the rollers 39, 40 are firmly screwed to the rocker 37, 38.
  • This design makes it possible to fasten the belt ends using several windings or belt loops.
  • the former maintains full belt strength, while loops at the connection point (seam, clamping) weaken the belt.
  • the tie rods 35, 36 are each directly connected to the rotatably mounted transversely arranged belt end rollers 39, 40.
  • the tangentially arranged cross belts exert a moment on the belt end rollers. These moments each generate a tensile force in the tie rods 35, 36.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Structural Engineering (AREA)
  • Carriers, Traveling Bodies, And Overhead Traveling Cranes (AREA)
  • Replacement Of Web Rolls (AREA)
  • Winding Of Webs (AREA)
  • Transmission Devices (AREA)
  • Devices For Conveying Motion By Means Of Endless Flexible Members (AREA)
EP17705307.1A 2016-02-13 2017-02-09 Hubvorrichtung Active EP3414201B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102016001695.7A DE102016001695B4 (de) 2016-02-13 2016-02-13 Hubvorrichtung
PCT/EP2017/000182 WO2017137163A1 (de) 2016-02-13 2017-02-09 Hubvorrichtung

Publications (2)

Publication Number Publication Date
EP3414201A1 EP3414201A1 (de) 2018-12-19
EP3414201B1 true EP3414201B1 (de) 2020-07-22

Family

ID=58046613

Family Applications (1)

Application Number Title Priority Date Filing Date
EP17705307.1A Active EP3414201B1 (de) 2016-02-13 2017-02-09 Hubvorrichtung

Country Status (8)

Country Link
US (1) US10934139B2 (ru)
EP (1) EP3414201B1 (ru)
CN (1) CN108602652B (ru)
DE (1) DE102016001695B4 (ru)
HU (1) HUE051058T2 (ru)
MX (1) MX2018009730A (ru)
RU (1) RU2730698C2 (ru)
WO (1) WO2017137163A1 (ru)

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CN108758404A (zh) * 2018-06-06 2018-11-06 安徽艳阳电气集团有限公司 一种便于移动转运和调节照射角度的led投光灯
CN111731729A (zh) * 2019-04-30 2020-10-02 北京京东乾石科技有限公司 货架穿梭车及货架系统
IT201900017144A1 (it) * 2019-09-24 2021-03-24 Diego Angei Dispositivo carroponte per il sollevamento e lo spostamento di un carico, e relativa attrezzatura

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Also Published As

Publication number Publication date
CN108602652A (zh) 2018-09-28
US20190031478A1 (en) 2019-01-31
RU2730698C2 (ru) 2020-08-25
DE102016001695A1 (de) 2017-08-17
MX2018009730A (es) 2019-07-08
HUE051058T2 (hu) 2021-03-01
RU2018131726A (ru) 2020-03-13
DE102016001695B4 (de) 2018-06-07
WO2017137163A1 (de) 2017-08-17
US10934139B2 (en) 2021-03-02
EP3414201A1 (de) 2018-12-19
CN108602652B (zh) 2021-01-08
RU2018131726A3 (ru) 2020-03-18

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