EP0620180A2 - Pince de sécurité pour un équipement mobile sur rail, comme p.e. une grue - Google Patents

Pince de sécurité pour un équipement mobile sur rail, comme p.e. une grue Download PDF

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Publication number
EP0620180A2
EP0620180A2 EP94105306A EP94105306A EP0620180A2 EP 0620180 A2 EP0620180 A2 EP 0620180A2 EP 94105306 A EP94105306 A EP 94105306A EP 94105306 A EP94105306 A EP 94105306A EP 0620180 A2 EP0620180 A2 EP 0620180A2
Authority
EP
European Patent Office
Prior art keywords
rail
pliers according
safety pliers
wedges
safety
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.)
Granted
Application number
EP94105306A
Other languages
German (de)
English (en)
Other versions
EP0620180B1 (fr
EP0620180A3 (fr
Inventor
Werner Herz
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
Publication of EP0620180A2 publication Critical patent/EP0620180A2/fr
Publication of EP0620180A3 publication Critical patent/EP0620180A3/fr
Application granted granted Critical
Publication of EP0620180B1 publication Critical patent/EP0620180B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime 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

Definitions

  • the invention relates to safety pliers for a rail-bound system, such as e.g. a crane, consisting of articulated arms movable around fixed articulation points on a support, which can be articulated at one end by means of intermediate jaws and which are operated at the other end by an actuating device attached to a frame.
  • a rail-bound system such as e.g. a crane
  • articulated arms movable around fixed articulation points on a support, which can be articulated at one end by means of intermediate jaws and which are operated at the other end by an actuating device attached to a frame.
  • the invention has for its object to design the safety pliers so that when the wind pressure occurs, the press jaws already resting on the rail are pressed even further.
  • At least one press jaw at least one wedge-shaped groove guide is provided, in which a wedge gripping the rail is guided, the wedge being able to be brought into the region of the greatest opening width of the groove guide, for example by means of spring force is.
  • at least one press jaw is provided with mirror guides arranged in a wedge shape to the rail, in which wedge-engaging wedges are guided, which can be moved towards one another by spring force.
  • the mirror-image arrangement of the wedges ensures that the necessary forces are exerted on the wedges both in one wind direction and in the other wind direction and thus hold the crane.
  • the tension spring arranged between the wedges ensures that the wedges are returned to their starting position in the unloaded state.
  • the press jaws are connected to the intermediate member by an axis which is guided in an elongated hole made in the press jaw. This gives the possibility that the press jaw can assume the optimum position with respect to the rail because of the play between the axis and the elongated hole.
  • the intermediate link itself is adjustably attached to the pliers in order to ensure the optimal position of the press jaw in relation to the rail
  • a scissor frame is arranged between the frame and the carrier, which ensures this parallel guidance. This avoids that one gun arm is in a different position in the vertical direction with respect to the other gun arm and thus the detection of the rail may not be guaranteed.
  • the actuating device is an electrohydraulic drive that automatically places the press jaws on the rail at zero current.
  • a second embodiment is characterized in that the pressing jaws are articulated on tong arms, the tong arms being connected to one another by a piston-cylinder drive, and a compression spring being provided parallel to the piston-cylinder drive between the tong arms.
  • a piston-cylinder drive in conjunction with a compression spring, it is achieved that the entire rail tongs can be manufactured more cheaply than with rail tongs with a scissor-type frame, or an actuating device with an electrohydraulic drive for actuating the tong arms or the pressing jaws.
  • a frame is provided for receiving the rail tongs, the tongs arms being slidably receivable by the frame.
  • the measure serves the same purpose to connect the press jaws to the respective pliers arm by means of a ball joint and thus movable on all sides.
  • the groove guide is preferably bent towards the rail from approximately half its length in order to increase the pressing force of the wedges guided through the groove guide on the rail.
  • the wedges are held in the starting position by a compression spring. In the starting position, the wedges are in the middle of the press jaw.
  • the compression spring is guided through the respective wedge and is supported on the press jaw.
  • the wedge has a corresponding recess for guiding the compression spring; the compression spring is supported by the groove guide.
  • each press jaw is provided with a wedge guided in a groove.
  • the wedges face each other diagonally.
  • one press jaw is responsible for one direction in which the crane is moved. It is also necessary that, for example by means of spring force, the wedges before they are placed on the rail tongs in their Be brought home.
  • the advantage of this embodiment is that the forces occurring when braking the crane can be better absorbed by the rail tongs, since the wedges and the groove guides can be dimensioned larger with the same press jaw dimensions.
  • the frame is labeled 1 overall. It consists of frame parts 1a, 1b and 1c. This frame is part of the rail-bound system, e.g. of the crane. Attached to this frame 1 is an actuating device, generally designated 2, which can be an electrohydraulic drive.
  • the piston rod 3 of this electrohydraulic drive acts on the joint parts 3 and 4, which carry the tong arms 5 and 6 at the ends.
  • the tong arms 5 and 6 are connected by a carrier 7, which has the fixed articulation points 9 and 10.
  • the tong arms 5 and 6 carry hinge pins 11, 12, on which articulated intermediate members 13, 14 are arranged, which carry the press jaws 15 and 16.
  • the rail on which the press jaws rest is designated by 17.
  • FIG. 3 is a top view in the direction of arrow III (in Figure 1). Only one page is shown fully in the drawing in FIG. 3. You can see that everyone Press jaw 15 or 16 on its inside has wedge-shaped groove guides 18, 19 with respect to the rail 17, which are arranged in mirror image. A stop 20 is provided in the press jaw in the middle of the mirror guides. In the wedge-shaped groove guides 18, 19 of the pressing jaw 15, wedges 21, 22 and 21a, 22a are arranged on the opposite pressing jaw, which are connected to one another by a tension spring 23. Part 20 serves as a stop for the wedges.
  • each press jaw is connected to the intermediate member by an axis 25 which is guided in an elongated hole 26.
  • a certain mobility of the press jaw relative to the rail 17 is possible, so that the press jaw can assume the optimum position in each case in accordance with the force conditions.
  • a scissor-type frame is arranged between the frame, specifically between the frame part 1c of the frame and the carrier 7. This scissor frame ensures that it is avoided that for example, the pliers arm 5 can assume a different height in relation to the pliers arm 6 in the vertical direction, and thus the safe gripping of the rail may be endangered.
  • the frame designated by 42 is part of the rail-bound systems, for. B. the crane.
  • the rail clamp designated as a whole with 48 is held.
  • the rail clamp 48 consists of the clamp arms 35, 36, each of which is present as a pair in the present case.
  • the piston-cylinder drive 39 and the compression spring 40 are located between the tong arms 35, 36.
  • a support 41 is provided between the tong arms 35, 36 and is connected to the tong arms 35, 36 by the articulation points 37, 38.
  • the piston-cylinder drive 39 works in the direction of the force of the spring 40. Because the piston-cylinder drive 39 is provided with a check valve and because the spring 40 acts in such a way that the pressing jaws 28, 29 move in the direction of the rail ensures that the rail clamp cannot be released accidentally. For this would be a prerequisite that the check valve was loosened and the piston of the piston cylinder drive was acted upon from the opposite side with hydraulic oil.
  • the rail tongs can therefore only be released when the piston-cylinder drive is switched over and consequently pulls the pressing jaws 28, 29 away from the rail 17 against the force of the spring 40.
  • the frame 42 also has the crossbeams 46, on which the rail clamp designated as a whole with 48 is slidably mounted.
  • the tong arms 35, 36 or tong arm pairs have rollers 47 on both sides which rest on the crossmember 46 (FIG. 6).
  • the movable mounting of the rail arms 48 by the frame 42 serves the purpose of always bringing the press jaws 28, 29 in an optimal position to the rail 17 in the case of strongly wavy rails 17.
  • This purpose also serves the measure of connecting the tong arms 35 and 36 to the press jaws 28 and 29 by means of a ball joint 43, 44, because this also creates the possibility of both vertical and horizontal compensation.
  • the one press jaw 28 in the groove guide 30, 31 has the wedges 32, 33 which are connected to one another by the spring 34.
  • the press jaw 29 On the other side of the rail 17 is the press jaw 29, which has no wedges, but only has adhesive teeth 29a in order to be able to generate a higher holding force on the rail 17.
  • Such adhesive teeth 32a, 33a also have wedges 32, 33.
  • the groove guide 30, 31 has a kink at 45. This means that at 45 the angle becomes steeper and in the present case increases from 6 ° to 9 °.
  • the compression springs 34, 46 are provided.
  • the compression spring is held by a recess in the wedge 32, 33 in the form of a bore 32b, 33b.
  • the compression spring 34, 46 is supported by the end face 30a, 31a of the groove guide 30, 31.
  • the advantage of using a compression spring over a tension spring is that even if the compression spring breaks enough force is applied by the remaining rest of the compression spring that the wedges always return to their starting position. Because it is absolutely necessary for the function that the wedges are in the starting position before the pressing jaws are placed on the rail. Only then is there the possibility that the pressing force required to hold the crane is applied when the wedges are moved in the respective groove guide.
  • the compression spring 40 is guided through the telescope 49.
  • the telescope 49 consists of the telescopic sleeve 50 and the telescopic tube 51, which are displaceable relative to one another.
  • the telescopic tube 51 has the thread 52 for receiving the screw 53 which protrudes through the telescopic sleeve 50.
  • the press jaws can be released manually by screwing the screw 53 into the telescopic tube (FIG. 8).

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Carriers, Traveling Bodies, And Overhead Traveling Cranes (AREA)
EP94105306A 1993-04-16 1994-04-06 Pince de sécurité pour un équipement mobile sur rail, comme p.e. une grue Expired - Lifetime EP0620180B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE9305700U 1993-04-16
DE9305700U DE9305700U1 (de) 1993-04-16 1993-04-16 Sicherheitszange für eine schienengebundene Anlage wie z.B. einen Kran

Publications (3)

Publication Number Publication Date
EP0620180A2 true EP0620180A2 (fr) 1994-10-19
EP0620180A3 EP0620180A3 (fr) 1995-01-18
EP0620180B1 EP0620180B1 (fr) 1997-10-22

Family

ID=6892067

Family Applications (1)

Application Number Title Priority Date Filing Date
EP94105306A Expired - Lifetime EP0620180B1 (fr) 1993-04-16 1994-04-06 Pince de sécurité pour un équipement mobile sur rail, comme p.e. une grue

Country Status (2)

Country Link
EP (1) EP0620180B1 (fr)
DE (2) DE9305700U1 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19714114C2 (de) * 1996-06-27 2003-09-11 Werner Herz Sicherheitszange für eine schienengebundene Anlage, wie z. B. einen Kran
CN106115483A (zh) * 2016-08-14 2016-11-16 韩睿 一种起重机防风锚固装置
CN110356966A (zh) * 2019-07-17 2019-10-22 济南轨道交通集团有限公司 一种内置式手动夹轨器及安装有该夹轨器的轨道、方法
CN111422753A (zh) * 2020-04-20 2020-07-17 中国水利水电第四工程局有限公司 户外门机简易防风楔块装置
CN111999174A (zh) * 2020-09-01 2020-11-27 广州特种机电设备检测研究院 一种钢丝绳用实验夹具

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE20200870U1 (de) * 2002-01-22 2002-06-06 Herz, Werner, 99988 Heyerode Bremsvorrichtung für einen auf Schienen verfahrbaren Kran
DE202010005201U1 (de) * 2010-04-14 2010-06-17 Wilbert Turmkrane Gmbh Sicherheitssystem für eine Laufkatze eines Kranes
DE102013108439B4 (de) 2013-08-06 2017-05-04 Konecranes Global Corporation Schienenzangenvorrichtung und Verfahren zu deren Betrieb
CN110155879B (zh) * 2019-06-13 2023-12-15 武汉开锐海洋起重技术有限公司 侧面抱紧式防爬装置
CN110203820B (zh) * 2019-06-13 2024-05-07 武汉开锐海洋起重技术有限公司 拉杆对中式防爬装置
CN111173559B (zh) * 2020-02-13 2024-07-12 中建八局轨道交通建设有限公司 用于盾构施工的电瓶车防溜车装置

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR419643A (fr) * 1910-08-16 1911-01-11 Simon Daniel Stucker Frein sur rails
FR582754A (fr) * 1924-06-16 1924-12-27 Caillard Et Cie Ets Dispositif de freinage automatique rapide et progressif pour appareils roulants
FR774604A (fr) * 1934-06-16 1934-12-10 Dispositif de sûreté applicable à des constructions transportables, telles que des ponts roulants et de chargement, des grues et autres constructions semblables
DE2441122A1 (de) * 1974-08-28 1976-03-11 Krupp Gmbh Sicherheitseinrichtung
FR2373705A2 (fr) * 1976-12-07 1978-07-07 Pradon Jacques Pince de serrage
DD281789A5 (de) * 1988-12-29 1990-08-22 Metalleichtbaukombinat Werk Pl Windsicherung fuer bruecken- und portalkrane im freien

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19714114C2 (de) * 1996-06-27 2003-09-11 Werner Herz Sicherheitszange für eine schienengebundene Anlage, wie z. B. einen Kran
CN106115483A (zh) * 2016-08-14 2016-11-16 韩睿 一种起重机防风锚固装置
CN110356966A (zh) * 2019-07-17 2019-10-22 济南轨道交通集团有限公司 一种内置式手动夹轨器及安装有该夹轨器的轨道、方法
CN111422753A (zh) * 2020-04-20 2020-07-17 中国水利水电第四工程局有限公司 户外门机简易防风楔块装置
CN111422753B (zh) * 2020-04-20 2022-01-14 中国水利水电第四工程局有限公司 户外门机简易防风楔块装置
CN111999174A (zh) * 2020-09-01 2020-11-27 广州特种机电设备检测研究院 一种钢丝绳用实验夹具
CN111999174B (zh) * 2020-09-01 2024-01-19 广州特种机电设备检测研究院 一种钢丝绳用实验夹具

Also Published As

Publication number Publication date
DE9305700U1 (de) 1993-07-01
DE59404384D1 (de) 1997-11-27
EP0620180B1 (fr) 1997-10-22
EP0620180A3 (fr) 1995-01-18

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