EP1447372A2 - Dispositif de levage d'un convoyeur suspendu - Google Patents

Dispositif de levage d'un convoyeur suspendu Download PDF

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Publication number
EP1447372A2
EP1447372A2 EP04002031A EP04002031A EP1447372A2 EP 1447372 A2 EP1447372 A2 EP 1447372A2 EP 04002031 A EP04002031 A EP 04002031A EP 04002031 A EP04002031 A EP 04002031A EP 1447372 A2 EP1447372 A2 EP 1447372A2
Authority
EP
European Patent Office
Prior art keywords
lifting
guide
station according
construction
vehicle
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Withdrawn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
EP04002031A
Other languages
German (de)
English (en)
Other versions
EP1447372A3 (fr
Inventor
Lothar Weiss
Franz Mühlberghuber
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.)
TMS Produktionssysteme GmbH
Original Assignee
TMS Produktionssysteme 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 TMS Produktionssysteme GmbH filed Critical TMS Produktionssysteme GmbH
Publication of EP1447372A2 publication Critical patent/EP1447372A2/fr
Publication of EP1447372A3 publication Critical patent/EP1447372A3/fr
Withdrawn legal-status Critical Current

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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
    • B66F7/0691—Asymmetric linkages, i.e. Y-configuration
    • 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
    • B66F3/22—Lazy-tongs mechanisms
    • 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

  • the subject invention relates to a lifting station of a monorail, preferably one Electric monorail system, with a hanging lifting or Lowering device for lifting and / or lowering a vehicle guide piece, which the lifting or lowering device is attached, at least consisting of a number in Substantially more rigid, preferably elongated, structural elements that are made by at least one joint are connected to each other and with which the vehicle guide piece, if necessary with a vehicle of the monorail, from a first lifting position at least one further lifting position can be lifted.
  • the present invention is based on the object of specifying a lifting station, which is simple, light and compact and is simple and inexpensive to manufacture can be eliminated and the disadvantages mentioned above.
  • This object is achieved according to the invention in that at least two construction elements of the lifting or lowering device are arranged in a Y-shape in at least one lifting position.
  • this enables a particularly simple and compact construction of the lifting station. Due to the small number of construction elements required, such a lifting station can also be manufactured very simply and inexpensively.
  • the special design of the lifting and lowering device ensures sufficient rigidity in and transversely to the direction of transport of the vehicle.
  • the lifting station according to the invention is particularly suitable for a monorail in which the vehicles from a higher lying vehicle guidance to a lower lying vehicle guidance, or vice versa, must be lifted. Another advantageous embodiment results when a further lifting position is provided in the components on the Vehicle taken over or handed over by the vehicle.
  • At least one construction element is advantageously guided in a guide device movably arranged, the guide device being arranged on the ceiling structure is, and another structural element arranged on the ceiling structure and is connected to the first structural element, whereby the lifting movement with very simple constructive means can be achieved.
  • An embodiment of a lifting and lowering device with a long and a short construction element, the longer one being guided in the guide device, is particularly simple in construction and can be produced very easily. If the long construction element is guided and twice as long as the short one and the short one is articulated in the middle of the long one, this results in an extremely advantageous design of a lifting station, since it is then ensured that the vehicle guide piece is moved purely vertically, as a result simple positioning of the vehicle guide piece is made possible.
  • the guiding device With any length ratios of the construction elements, it is particularly advantageous to execute the guiding device in such a way that the kinematics of the lifting or Lowering device the end of the guide element connected to the vehicle guide piece is moved essentially vertically.
  • This special design of the Guide devices can horizontal movement of the vehicle guide piece can be compensated, which in turn allows easy positioning of the vehicle guide piece is made possible.
  • the design of such a kinematic system can be done very easily with conventional methods of kinematics.
  • the articulated frames In a configuration of the lifting or lowering device with two interconnected multi-link articulated frames and a guide element, the articulated frames preferably being designed as a parallelogram, there are very particular advantages.
  • the kinematics of such a device ensure that the vehicle guide piece retains its original position with respect to the horizontal in all lifting positions and is not pivoted by the lifting movement.
  • a length ratio between the guide element and a construction element of the articulated frame of 2: 1 and an articulated connection between the articulated frame and the guide element in the middle of the guide element a purely vertical movement of the vehicle guide piece is also ensured.
  • a very particularly simple configuration results when the lifting or lowering device with at least one multi-part articulated frame consisting of a number articulated construction elements, and a guide element is executed, wherein preferably the guide element is articulated with the articulated frame connected is.
  • a guide element is executed, wherein preferably the guide element is articulated with the articulated frame connected is.
  • an articulated frame and a guide element are sufficient to achieve the desired guided lifting movement, there is only a second one Guide device required, which is a particularly simple and inexpensive Construction results.
  • the achievable lifting height of the lifting or lowering device of the lifting station can be very simple be enlarged if the lifting or lowering device is constructed in two parts, one Part is constructed as a known scissor mechanism and the second part with Y-shaped Construction elements is formed. This gives you the advantage of an extended one Lifting height with the same overall length when retracted.
  • the linear actuator can be used as a cable drive, chain drive, threaded rod drive, Hydraulic cylinder or pneumatic cylinder to be executed.
  • Lifting and lowering device can be arranged.
  • the construction elements, the connecting element and / or the guide element are advantageous from standard components, such as pipes, molded pipes, or profiles, at least partially designed as rods, which significantly simplifies the construction.
  • the guide device is advantageously a linear guide and on the ceiling construction arranged what the design of the kinematics and the manufacture of the lifting or Lowering device simplified.
  • Fig. 1 shows a particularly advantageous embodiment of a monorail, preferably an electric monorail, with a lifting station 1 with the lifting and lowering device 2 with which a vehicle guide piece 4 can be raised and lowered.
  • a vehicle 6 of the overhead conveyor is moved along a vehicle guide 8, such as a conventional guide rail, and transports any components, such as body parts, between a number of work stations, not shown, such as welding stations.
  • a vehicle guide 8 such as a conventional guide rail
  • any components such as body parts
  • the lifting and lowering device 2 of the lifting station 1 is suspended from a ceiling structure 3 and is connected to a freely movable vehicle guide piece 4, which can be lifted into different lifting positions 8a, 8b by means of the lifting and lowering device 2.
  • a lifting drive 18, here a cable pull is provided on the ceiling construction 3.
  • the cable 19 of the lifting drive 18 is connected to the vehicle guide piece 4 at the lifting application point H.
  • the lifting and lowering device 2 is thus lowered in a controlled manner by the dead weight and the lifting drive 18 and raised by means of the lifting drive 18.
  • Any other stroke drive 18, such as a chain drive, threaded rod drive, rack drive, hydraulic cylinder, pneumatic cylinder or the like would of course also be conceivable.
  • a counterweight could also be provided in a known manner in order to support the lifting drive 18. If the lifting drive 18 did not act on the vehicle guide piece 4, but rather on a construction element of the lifting and lowering device 2, the construction elements of the lifting and lowering device 2 would have to absorb and transmit the weight of the vehicle 6 including the transported load and the resulting bending moments.
  • the construction elements would have to be dimensioned accordingly, what that Weight and the space requirement of the lifting and lowering device 2 undesirably increase would.
  • This disadvantageous effect becomes more effective the further the stroke application point H is removed from the articulation point A of the receiving device 4.
  • the linear actuator 18 should be in in this case, attack near the vehicle guide piece 4, so that the Load on the structural elements of the lifting and lowering device 2 is as low as possible and the lifting and lowering device 2 are dimensioned as light and compact as possible can.
  • the stroke application point H of the stroke drive 18 should not be more than 50% the total length of the connected to the vehicle guide piece 4 Construction element, preferably 15% or 25%, from the articulation point A of Vehicle guide piece 4 be removed.
  • the vehicle 6 moves along a vehicle guide 8a, as indicated by the arrow in FIG. 1, into the lifting station 1 in a certain position and drives onto the vehicle guide piece 4 which has been correctly positioned beforehand.
  • the vehicle guide piece 4 with the vehicle 6 can now be lowered by means of the lifting and lowering device 2 to a vehicle guide 8b located lower here, which of course could also be raised to a higher vehicle guide, and the vehicle 6 can now be moved along this lower vehicle guide 8b become. Any intermediate positions or a reverse direction of movement are of course also possible.
  • Due to the kinematics of the lifting and lowering device 2 short vehicle guide pieces 4 can be lifted even at high lifting heights without colliding with an upper vehicle guide 8a, as indicated in FIG.
  • the vehicle guide piece 4 as can be seen best in FIG. 1 in the side view in the direction of movement of the vehicle 6, is designed in this embodiment as a U-shaped basic element on which the structural elements 7, 13, 15 of the lifting and lowering device 2 are arranged and on the underside of which a part of a vehicle guide, here an I-shaped rail, is arranged.
  • the vehicle guide piece 4 can also be designed in any other way.
  • the load center of gravity of the vehicles 6 is normally below the center Guide device 8, since no torsion is introduced into the vehicle guide 8 should, whereby the rigidity of the lifting and lowering device 2 transversely to the direction of travel Vehicles 6 places low demands on such a lifting and lowering device 2 can be fulfilled.
  • the Construction elements 7, 13 of the lifting and lowering device 2 as can be seen in FIG. 1, these requirements are further reduced across the direction of travel.
  • a guide element 7 is movably and rotatably mounted in a guided manner via a guide device 5 which is arranged on the ceiling structure 3, with which a guide point F is fixed.
  • This guide element 7 is connected here to two articulated frames 10, 11, which in this example each form a parallelogram, each with two parallel sides, or is itself part of one of these articulated frames 10, 11. In a raised or lowered position the construction elements 7, 13 are thus always arranged in a Y-shape.
  • Each of the two articulated frames 10, 11 here consists of two longer rods 13 and two shorter rods 12, 14, 15, or something similar to a rod, as construction elements, which of course must each have the same length in order to be able to form a parallelogram.
  • a first articulated frame 10 is connected to the vehicle guide piece 4 via construction elements 13 and a rod 15 at the two articulation points A, or the rod 15 is formed by the vehicle guide piece 4 itself.
  • two further rods 13 are rotatably mounted via joints 9, which in turn are connected to each other on the opposite side by a connecting element 12, on which the two rods 13 are in turn rotatably mounted.
  • the second parallelogram is formed by a construction element 14, which is formed here as part of the ceiling structure 3 and on which again two rods 13 are rotatably mounted, which in turn are articulated at the opposite end of the rods via the connecting element 12.
  • the two articulated frames 10, 11 connected in this way via the connecting element 12 are connected in an articulated manner to the guide element 7 via a single connecting point V.
  • the guide element 7 here has twice the length as the rods 13 and the connection point V lies in the middle of the guide element 7. From the kinematics of this arrangement, it follows that the vehicle guide piece 4 is only moved vertically when the guide point F moves, and that due to the two articulated frames 10, 11, the vehicle guide piece 4 also maintains its predetermined, here horizontal, position in all lifting positions.
  • the lifting and lowering device 2 shows a very simple embodiment of a lifting and lowering device 2 of a lifting station 1 of a monorail.
  • the lifting and lowering device 2 is arranged hanging on a ceiling structure 3 and is connected to a vehicle guide piece 4.
  • the lifting and lowering device 2 consists of two construction elements 7, 13, which are rod-shaped here and which are rotatably connected to one another via joints 9.
  • the longer rod is embodied here as a guide element 7, the end of which is assigned to a guide device 5 and is mounted so that it can be moved and rotated in this guide device 5.
  • This end of the guide element 7 is rotatably connected to an element of the guide device 5 via a further joint 9 and the guide point F thus predefined can therefore only be moved along a curve predetermined by the guide device 5, in this specific example a linear guide.
  • the opposite end of the guide element 7 is connected to the vehicle guide piece 4 at the articulation point A.
  • the short rod 13 of the lifting and lowering device 2 is rotatably supported at one end via a joint 9 on the ceiling structure 3 and at the other end in turn rotatably supported on the guide element 7 via a joint 9 between the two ends of the guide element 7. In a raised or lowered position, the construction elements 7, 13 are therefore always arranged in a Y-shape here.
  • the lengths of the rod 13 and the guide element 7 are chosen in the example according to FIG. 2 so that the guide element 7 is twice as long as the length of the short rod 13 and the connection point V between the guide element 7 and the short rod 13 is in the Middle of the guide element 7 selected.
  • This special design results in special kinematic advantages.
  • the vehicle guide piece 4 is raised or lowered essentially vertically when the guide point F is displaced along the guide device 5 and there is no horizontal displacement of the vehicle guide piece 4, as shown by the dashed line in FIG. 2, which shows a further lifting position, is indicated.
  • the vehicle guide piece 4 In the case of a rigid connection between the guide element 7 and the vehicle guide piece 4, only the vehicle guide piece 4 would pivot, by a maximum of 90 °.
  • This pivoting could either be accepted as given, or one could also provide some compensation for the position of the vehicle guide piece 4.
  • a suitable device such as a stepper motor, balance weights, or the like
  • a first vehicle guide 8a is provided here, via a vehicle 6 into the lifting station 1 retracts.
  • the vehicle 6 can now as described above with the lifting and lowering device 2 are lowered into a lifting position 8c, in which, for example, components are accommodated, filed but can also be edited, and then to a vehicle tour 8b raised (or lowered) over which the vehicle 6 out of the lifting station 1 extends again.
  • the guide device 5 provides additional guidance.
  • the pivot point A in an additional vertical auxiliary guide or the connection point V in an additional circular Aid guide could be the pivot point A in an additional vertical auxiliary guide or the connection point V in an additional circular Aid guide to increase accuracy.
  • Such a guide would however, the kinematics of the lifting or lowering device 2 do not change and would be for the Function of the lifting or lowering device 2 is not absolutely necessary and is therefore in the sense the invention is not to be understood as a guide device 5, which is essentially the kinematic Ratios of the lifting or lowering device 2 determined.
  • the lifting or lowering device 2 again consists of two construction elements 7, 20, one being designed as a guide element 7 and the other as a vertical guide device 20.
  • the guide element 7 is movably guided and rotatably supported by one end F in a horizontal guide device 5 and rotatably guided and rotatably supported by another point V between the two ends of the guide element 7 in the vertical guide device 20.
  • Both guide devices 5, 20 are arranged on the ceiling structure 3.
  • the two construction elements 7, 20 of the lifting and lowering device 2 are again clearly Y-shaped in the lowest lifting position of the receiving device 4, that is to say when the point V has reached the lower end of the guide device 8.
  • the construction elements 7, 20 are understood in the sense of the invention to be arranged in a Y-shape, since the unused end of the guide device 20 has no function in these lifting positions. It can be seen very simply from the kinematics that the articulation point A would move here along an elliptical path with a lifting movement. A corresponding design of the guide device 5 and / or the guide device 20 could of course again achieve an essentially vertical movement of the vehicle guide piece 4. With regard to a possible rotation of the vehicle guide piece 4 when lifting or lowering, what has already been said above applies.
  • the vertical guide device 20 could, for example, also be designed telescopically, ie the guide device 20 is extended more or less depending on the lifting position.
  • the lifting and lowering device of FIG. 3 can now also be operated with a parallel articulated frame 10 equipped.
  • the articulated frame 10 again consists of four Construction elements 12, 13, 15, here rods, the joints 9 to a parallelogram are interconnected.
  • One of the rods 13 is through part of the guide element 7 formed.
  • This guide element 7 is linear in the guide point F.
  • horizontally arranged guide device 5 guided movably and rotatably mounted.
  • the articulated frame 10 and the guide element 7 are articulated with one another connected.
  • connection point V and another point of the Articulated frame 10 in a second linear vertical arrangement as a guide device 20 of the lifting or lowering device 2 is movably and rotatably supported.
  • this articulated frame 10 achieves that the vehicle guide piece 4 can be raised and lowered without pivoting.
  • the articulated frame 10 of the lifting and lowering device 2 could be guided in a guide device 5, as shown in FIG. 5.
  • a construction element 21 can be guided in a guide device 5.
  • two rods 7 are rotatably arranged via joints 9, which are connected at their opposite ends via a further rod-shaped construction element 15.
  • the construction elements 7, 15, 21 thus again form a parallelogram-shaped articulated frame 10.
  • a vehicle guide piece 4 is arranged on the construction element 15, the construction element 15 naturally also being part of the vehicle guide piece 4.
  • Another rod-shaped construction element 13 is articulated at one end to the ceiling structure 3 and at the other end at the connection point V with a rod 7 of the articulated frame 10.
  • this lifting and lowering device 2 can in turn be considered very simply.
  • This exemplary embodiment essentially represents a further development of the lifting and lowering device 2 according to FIG. 2, and it is thereby achieved in particular that the predetermined position of the vehicle guide piece 4, here the horizontal, is retained in every lifting position. Otherwise, what has already been said for FIGS. 1 and 2 applies analogously.
  • FIG. 6 shows an embodiment variant in which the lifting and lowering device 2 is included a conventional, known scissor mechanism 22 has been expanded.
  • the kinematics of the lifting and lowering device 2 can by the design and connection of the construction elements and the Guide device 5, as detailed above, can be influenced very easily.
  • a lifting station 1 according to the invention could of course also be equipped with more than one lifting or lowering device 2.
  • two rods 13 lying next to one another, viewed in the direction of travel, or two articulated frames 10 and 11 could be provided between which the guide element 7 is arranged.
  • Such an embodiment would have the advantage that it would be essentially torque-free due to the symmetrical arrangement of the construction elements. But of course all other possible kinematic configurations are also encompassed by this invention.
  • a lifting station 1 as described above can e.g. in production lines of the automotive industry Manufacturing of bodies or body parts are used, e.g. in a monorail.
  • a plurality of vehicles 1 are located between several work stations, e.g. Welding stations, moving, the movement at different levels can take place.
  • the vehicles 6 are fastened along a ceiling Guide device, e.g. a rail, moves.
  • vehicle guide piece 4 For precise location fixation when handing over or taking over components to or from Vehicle 6 or when vehicle 6 enters or exits vehicle guide piece 4 centering devices, e.g. Guide pin or mounting pin, be used.
  • centering devices e.g. Guide pin or mounting pin.
  • the vehicle guide pieces 4 and the vehicles 6 can easily and safely slide into the centering devices.
  • the present lifting station 1 there is no lateral deflection when the load torque changes due to the off-center load on the vehicle 6.
  • the folding mechanism of the lifting or lowering device 2 also has the advantage that in a simple way supply lines, for example electricity, water, compressed air, etc., of devices on the vehicle guide piece, e.g. Tensioning devices, along the Structural elements of the lifting and lowering device 2 can be guided, wherein these do not need to be specially protected because the construction elements are due to the kinematics are not in the work area and there is a risk of damage to the Lines is therefore low.
  • supply lines for example electricity, water, compressed air, etc.
  • guide devices 5 constructions not specifically described are used, e.g. a cone, a Sled or a role that are guided in a corresponding rail, or also a slide rod guide, slide guide, etc.
  • the lifting and lowering device 2 can also be locked so safe opening is guaranteed.

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  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Geology (AREA)
  • Mechanical Engineering (AREA)
  • Structural Engineering (AREA)
  • Conveying And Assembling Of Building Elements In Situ (AREA)
  • Carriers, Traveling Bodies, And Overhead Traveling Cranes (AREA)
EP04002031A 2003-02-17 2004-01-30 Dispositif de levage d'un convoyeur suspendu Withdrawn EP1447372A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT2392003 2003-02-17
AT2392003 2003-02-17

Publications (2)

Publication Number Publication Date
EP1447372A2 true EP1447372A2 (fr) 2004-08-18
EP1447372A3 EP1447372A3 (fr) 2004-11-03

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EP04002031A Withdrawn EP1447372A3 (fr) 2003-02-17 2004-01-30 Dispositif de levage d'un convoyeur suspendu

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EP (1) EP1447372A3 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10106378B2 (en) 2015-11-03 2018-10-23 General Electric Company System and method for lifting with load moving machine
CN113683032A (zh) * 2021-09-06 2021-11-23 奇点变幻科技(天津)有限公司 一种连杆式升降装置
US20240228246A1 (en) * 2023-01-05 2024-07-11 Nexion S.P.A. Vehicle lift and a method for lifting vehicles

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Publication number Priority date Publication date Assignee Title
US2435755A (en) * 1946-02-20 1948-02-10 Charles H Schimpff Displaying and dispensing apparatus
DE1816065U (de) * 1956-09-05 1960-08-04 Demag Ag Huettenkran.
SU1504177A1 (ru) * 1987-08-18 1989-08-30 Проектно-Конструкторское Бюро Производственного Объединения "Электроприбор" Кран-штабелер
US5366203A (en) * 1989-07-31 1994-11-22 Safety Lock And Lift, Ltd. Projector ceiling lift
JPH0952604A (ja) * 1995-08-11 1997-02-25 Yasutsugu Yamazaki 倉庫内の収容物自動出入れシステム
JPH0989068A (ja) * 1995-09-20 1997-03-31 Hitachi Cable Ltd 昇降装置
JP3287447B2 (ja) * 1996-03-22 2002-06-04 東光電気株式会社 昇降装置
JPH1088992A (ja) * 1996-09-18 1998-04-07 Konishizaki Kk 巻上装置
DE19643347A1 (de) * 1996-10-21 1998-04-23 Andreas Zentner Vorrichtung zum Heben und Absenken von Lasten
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JP2001146384A (ja) * 1999-11-19 2001-05-29 Central Motor Co Ltd 搬送システム

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10106378B2 (en) 2015-11-03 2018-10-23 General Electric Company System and method for lifting with load moving machine
CN113683032A (zh) * 2021-09-06 2021-11-23 奇点变幻科技(天津)有限公司 一种连杆式升降装置
US20240228246A1 (en) * 2023-01-05 2024-07-11 Nexion S.P.A. Vehicle lift and a method for lifting vehicles
US12365568B2 (en) * 2023-01-05 2025-07-22 Nexion S.P.A. Vehicle lift and a method for lifting vehicles

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