EP2133303A1 - Système de positionnement et de freinage pour engins de levage - Google Patents

Système de positionnement et de freinage pour engins de levage Download PDF

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Publication number
EP2133303A1
EP2133303A1 EP08104367A EP08104367A EP2133303A1 EP 2133303 A1 EP2133303 A1 EP 2133303A1 EP 08104367 A EP08104367 A EP 08104367A EP 08104367 A EP08104367 A EP 08104367A EP 2133303 A1 EP2133303 A1 EP 2133303A1
Authority
EP
European Patent Office
Prior art keywords
traction means
hoist
load
braking device
chassis
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Withdrawn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
EP08104367A
Other languages
German (de)
English (en)
Inventor
Wilhelm Strödter
Norbert Kampe
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to EP08104367A priority Critical patent/EP2133303A1/fr
Publication of EP2133303A1 publication Critical patent/EP2133303A1/fr
Withdrawn legal-status Critical Current

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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
    • B66C9/00—Travelling gear incorporated in or fitted to trolleys or cranes
    • B66C9/18—Travelling gear incorporated in or fitted to trolleys or cranes with means for locking trolleys or cranes to runways or tracks to prevent inadvertent movements
    • 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
    • B66C13/18—Control systems or devices
    • B66C13/22—Control systems or devices for electric drives
    • B66C13/30—Circuits for braking, traversing, or slewing motors
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
    • B66D3/00—Portable or mobile lifting or hauling appliances
    • B66D3/18—Power-operated hoists

Definitions

  • the invention relates to a hoist, comprising a carrier system with a movable in at least a first or second direction chassis on a guide device to which a lifting system is coupled, from the pendulum hangs down a traction means with load receiving device.
  • the suspension system for the balancer such as a bridge crane or a pivot column or an overhead crane rail system often respond because of low rolling friction also very smoothly; this can disrupt the desired workflow.
  • the inertia of the load and the load-bearing device causes a moving load to overshoot the target position. This disadvantage is the greater, the faster a change in position of the load or the hoist follows each other.
  • the invention is based on the problem to provide a hoist that stops a load as possible automatically at a desired position after an initiated movement.
  • the solution consists in a hoist comprising a carrier system with a movable in at least a first and a second direction chassis on a guide device to which a lifting system is coupled, from the pendulum hangs down a traction means with load-receiving device, wherein the suspension a braking device is coupled , suitable, after release by the traction means to block the chassis by self-locking in a direction opposite to the guide device.
  • a switch is provided, which is coupled to the traction means and the braking device, wherein the switch a detect predeterminable angular deviation of the traction device from the vertical or its desired position at standstill and can trigger the braking device.
  • This switch is preferably located in the vicinity of the lifting system near a guide for the traction means and is preferably mechanically connected to the guide.
  • any switches can be used, including inductive or optical switching devices.
  • carrier systems can be selected from the group comprising horizontal crane rails, overhead cranes with or without a trolley, jib cranes with boom, for example those on columns or hall walls and crossbars or crossbar distributors and similar systems find application.
  • the traction means are selected from a group comprising ropes, chains, pendulum rods, pendulum cylinders, lifting belts, ie all traction devices that can pendulum pendulum hanging from a lifting system.
  • a load-receiving device for receiving the load for example a workpiece or a component or generally a piece goods, is suitably arranged on the traction means.
  • this should usually be brought to a different location with a horizontal movement.
  • a lifting drive to remove the load from the ground or from a holder and then to move it via roller carriages via a carrier system to the desired position for further processing.
  • the traction means for example a cable
  • the traction means due to the inertia of the still beyond the actual nominal position in Moving chassis and lifting system against the direction of movement obliquely; it again creates a "backward" directed misalignment of the traction device.
  • the experienced operator will therefore stop the load a few centimeters before the position to be reached. In the invention, this pendulum motion should be exploited.
  • a self-locking braking device By interrogating the deflection of the traction means, a self-locking braking device is switched when covering a predeterminable oblique position of the traction means, either for braking the inertial masses in one direction or turning on a freewheel in the other direction.
  • FIG. 1 shows a hoist with an H-rail as a support system T, the lower flange 12 is suitable as a guide for a chassis 4.
  • the chassis 4 are moved in the directions X1 or X2.
  • a lifting drive 3 from which a traction means, here a rope 2 hangs down.
  • a load L1 has been added, which is to be moved from the position shown to the position P1.
  • the operator not shown, shifts the suspended load L1, which is practically weightless by a corresponding balancing system, in the direction X1 to reach the positioning point P1.
  • the landing gear 4 wants to roll back with the lifting drive 3 in the direction X2 in front of the positioning point P1, if the operator has not exactly balanced this overshoot by a variety of exercise. Initially, however, the operator will find that he can observe multiple oscillations beyond the point P1 and back again until the pendulum energy or momentum is dissipated by the mass inertia of the chassis 4 and linear actuator 3 by corresponding friction of the chassis 4 or other components. The braking forces bring so the operator. Of course, this swinging behavior is detrimental to the operator's job because he loses time here. If necessary, he must also perform the positioning several times until he has reached the correct positioning point P1.
  • the invention helps by a corresponding device.
  • a switch 1 connected to the guide 18 of the cable 2 switches a contact 5.
  • This Contact 5 is in operative connection with the lifting cylinder 6, the plunger of which act on the lever 8 and presses the roller 10 against the running rail 12.
  • the roller 10 is equipped with a freewheel hub, wherein the blocking side of the freewheel blocks the rotation of the roller 10 in the direction X1 and thus generates a brake friction between the roller 10 and the slide rail 12 as soon as these two have adhesive contact.
  • the roller 10 In the direction of X2, the roller 10 has its freewheel and so can run there in the reverse direction.
  • the chassis 4 which is coupled to the roller 10. Therefore, upon reaching a Schiefzuges in the direction G2 with the direction of movement of the chassis 4 in the direction X1 stopped directly above the point P1. At the moment of stopping the landing gear 4, the slight misalignment is canceled again and the switch 1 with contact 5 is no longer contacted.
  • Fig. 2 is one too Fig. 1 almost identical hoist shown, but with a double designed braking device for the directions X1 and X2.
  • a misalignment G1 arises at the positioning point, with which the switch 1 contact 13 is contacted.
  • the roller 11 has a freewheel in the direction X1, vice versa to the roller 10th
  • FIGS. 3, 4 . 5 show a swing boom in front view.
  • a pivot axis 21 is rotatably supported by means of a spacer 22.
  • a running rail 12 is coupled, which has the same function as in the example of FIG. 1 has been shown, but here from hollow profile with inside landing gear 4, to see only in Fig. 5 .
  • the lifting drive 3 belongs to a Doppelseilbalancer with the two traction cables 102 for the load L1. It is therefore also possible to move the load L1 again in the directions X1 or X2 along this carrier system T. In addition, it is possible to pivot about the pivot pin 21, the load L1. To have a braking device available here is according to front view in the FIG.
  • FIG. 3 and top view in FIG. 4 with the section BB shown in FIG. 3 , another roller brake system 19 - in operative connection with the guide 112 - has been set up to also allow braking maneuvers when pivoting the load L1 about the pivot 21 in the same way, as with the FIG. 1 was presented.
  • a somewhat different switch 100 is used, which is connected to the guide 118 of the cable 102.
  • the switch 100 has with the additional switching contacts 105 and 113 also for the rotational directions X1, X2 ( Figure 5 above) each switching points that initiate or cancel a braking maneuver in the respective rotational direction X1 or X2.
  • FIG. 5 This situation is in FIG. 5 with an analog picture too FIG. 2 , but shown with additional braking device 19.
  • the switching points on the switch 100 also with 105 for braking on the chain of action of the components 7,8,10und 113 for braking on the chain of action of the components 6, 9, 11 refers to this as FIG. 1 or too Fig. 2 has been described.
  • the pivoting directions are according to the sectional view in Fig. 5 with cut AA off FIG. 3 are shown as rotational degrees of freedom X1 and X2, so that it becomes clear that the braking device 19 in the pivoting directions in the same way as the brake device, the in FIG. 1 or Fig. 2 has been described.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Automation & Control Theory (AREA)
  • Control And Safety Of Cranes (AREA)
EP08104367A 2008-06-11 2008-06-11 Système de positionnement et de freinage pour engins de levage Withdrawn EP2133303A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP08104367A EP2133303A1 (fr) 2008-06-11 2008-06-11 Système de positionnement et de freinage pour engins de levage

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP08104367A EP2133303A1 (fr) 2008-06-11 2008-06-11 Système de positionnement et de freinage pour engins de levage

Publications (1)

Publication Number Publication Date
EP2133303A1 true EP2133303A1 (fr) 2009-12-16

Family

ID=39941843

Family Applications (1)

Application Number Title Priority Date Filing Date
EP08104367A Withdrawn EP2133303A1 (fr) 2008-06-11 2008-06-11 Système de positionnement et de freinage pour engins de levage

Country Status (1)

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EP (1) EP2133303A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106081900A (zh) * 2016-06-24 2016-11-09 芜湖莫森泰克汽车科技股份有限公司 加工汽车天窗用的扭力枪吊具
DE202017000487U1 (de) 2017-01-28 2017-03-17 KMHP Engineering GmbH Seilzug-Ausgleichsheber

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE692857C (de) 1938-08-10 1940-06-27 Maschf Augsburg Nuernberg Ag Sturmsicherung fuer Krane, Verladebruecken o. dgl.
DD218071A1 (de) 1983-09-29 1985-01-30 Stassfurt Veb Chemieanlagenbau Schraegzugsicherung fuer vertikal arbeitende hebezeuge
DD218879A1 (de) 1983-09-29 1985-02-20 Stassfurt Veb Chemieanlagenbau Schraegzugsicherung fuer vertikal arbeitende hebezeuge
EP0591304B1 (fr) 1991-06-25 1996-10-02 STRÖDTER, Wilhelm Commande et regulation electroniques de l'equilibre d'engins de levage
US5685227A (en) * 1995-09-18 1997-11-11 Premark Feg L.L.C. Brake assembly for overhead trolley
DE19983240T1 (de) 1998-05-14 2001-05-31 Nippon Mining Co Deckenlaufkransystem
EP1167273A1 (fr) 2000-06-19 2002-01-02 Atecs Mannesmann AG Dispositif de freinage pour ponts roulants sur rails
US6612449B1 (en) 1999-12-10 2003-09-02 Fanuc Robotics North America, Inc. Intelligent power assisted manual manipulator
US7043337B2 (en) 2002-09-30 2006-05-09 The Stanley Works Methods and apparatus for eliminating instability in intelligent assist devices
EP1460025B1 (fr) 2003-03-21 2006-12-13 Strödter Handhabungstechnik GmbH Treuil avec deux cables porteurs

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE692857C (de) 1938-08-10 1940-06-27 Maschf Augsburg Nuernberg Ag Sturmsicherung fuer Krane, Verladebruecken o. dgl.
DD218071A1 (de) 1983-09-29 1985-01-30 Stassfurt Veb Chemieanlagenbau Schraegzugsicherung fuer vertikal arbeitende hebezeuge
DD218879A1 (de) 1983-09-29 1985-02-20 Stassfurt Veb Chemieanlagenbau Schraegzugsicherung fuer vertikal arbeitende hebezeuge
EP0591304B1 (fr) 1991-06-25 1996-10-02 STRÖDTER, Wilhelm Commande et regulation electroniques de l'equilibre d'engins de levage
US5685227A (en) * 1995-09-18 1997-11-11 Premark Feg L.L.C. Brake assembly for overhead trolley
DE19983240T1 (de) 1998-05-14 2001-05-31 Nippon Mining Co Deckenlaufkransystem
US6612449B1 (en) 1999-12-10 2003-09-02 Fanuc Robotics North America, Inc. Intelligent power assisted manual manipulator
EP1167273A1 (fr) 2000-06-19 2002-01-02 Atecs Mannesmann AG Dispositif de freinage pour ponts roulants sur rails
US7043337B2 (en) 2002-09-30 2006-05-09 The Stanley Works Methods and apparatus for eliminating instability in intelligent assist devices
EP1460025B1 (fr) 2003-03-21 2006-12-13 Strödter Handhabungstechnik GmbH Treuil avec deux cables porteurs

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106081900A (zh) * 2016-06-24 2016-11-09 芜湖莫森泰克汽车科技股份有限公司 加工汽车天窗用的扭力枪吊具
DE202017000487U1 (de) 2017-01-28 2017-03-17 KMHP Engineering GmbH Seilzug-Ausgleichsheber

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