EP0659505B1 - Support et dispositif de pesage pour poches de coulées - Google Patents

Support et dispositif de pesage pour poches de coulées Download PDF

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Publication number
EP0659505B1
EP0659505B1 EP94116785A EP94116785A EP0659505B1 EP 0659505 B1 EP0659505 B1 EP 0659505B1 EP 94116785 A EP94116785 A EP 94116785A EP 94116785 A EP94116785 A EP 94116785A EP 0659505 B1 EP0659505 B1 EP 0659505B1
Authority
EP
European Patent Office
Prior art keywords
levers
weighing
support frame
support
supporting
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.)
Expired - Lifetime
Application number
EP94116785A
Other languages
German (de)
English (en)
Other versions
EP0659505A1 (fr
Inventor
Hartmut Dipl.-Ing. Grathoff
Inge Schöningh
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.)
Takraf GmbH
Original Assignee
MAN Takraf Fordertechnik 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 MAN Takraf Fordertechnik GmbH filed Critical MAN Takraf Fordertechnik GmbH
Publication of EP0659505A1 publication Critical patent/EP0659505A1/fr
Application granted granted Critical
Publication of EP0659505B1 publication Critical patent/EP0659505B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D41/00—Casting melt-holding vessels, e.g. ladles, tundishes, cups or the like
    • B22D41/12—Travelling ladles or similar containers; Cars for ladles

Definitions

  • the invention relates to a receiving and weighing device on the support frame of a transport device for ladles, with a horizontal one each on the supporting frame Axis pivoted levers with inclined Supports and guide surfaces for the Pan support elements.
  • a Holding device with weighing elements on the support frame a transport device for ladles, regarding design, manufacture and maintenance is very expensive. Because the weighing elements in this Execution should not be exposed to horizontal loads are allowed, the weighing elements are replaced by a variety of horizontal supports intercepted by special Medium, for example threaded pieces with a fine thread and lock nuts are adjusted so that they as free of play as possible, but also not tense. So that these agents wear out as little as possible they are made of high quality materials and carefully protected against pollution.
  • AT-36 73 30 is a weighing device for metallurgical vessels, especially in a continuous caster known with a load suspension device equipped like the pan support arm of a rotating tower with at least two on the load suspension device each around a horizontal axis pivoted levers on which the metallurgical vessel is supported.
  • a pressure measuring device between the Load suspension device and the the metallurgical Vessel-carrying levers arranged, being on outside end of each one-armed lever at its A combined load bearing surface is provided on the top is.
  • the pressure measuring device is in the vertical direction of force flow arranged and opposite the load suspension device supported vertically.
  • Each lever is a single pressure measuring device assigned in the vertical central plane of the lever.
  • the lever itself is trough-shaped in cross section designed, the middle trough part of the lever the spherical load bearing surface carries and the higher set lateral ends of the lever at one Load cell are supported.
  • DE 35 35 935 is a holding device for Pouring ladles known in which the support frame for rough guidance of the pan support elements arranged laterally Horns with sloping guide surfaces.
  • pan support elements are guided through Lateral embellishments reached on the ends a recording bar below the aforementioned Guide surfaces are arranged.
  • This support bar is based on the weighing elements from.
  • the weighing elements (load cells) are on as fixed bearings on one side and as a floating bearing on the other Side mounted on the support frame.
  • a disadvantage of the designs according to both of the aforementioned Property rights is that while putting on strong horizontal and vertical impacts on the pan the levers pivotably mounted on the support frame or on the mounting beams and the lower side Centerings and thus transferred to the weighing elements that are a multiple of the nominal load can.
  • the object of the invention is a To create cradle that has the disadvantages of Avoid prior art and a bumpless Put on the ladle support elements of the ladle the support of the weighing device allows.
  • the inclination of the surfaces forming the centering is flatter than that of the lower side surfaces of the support elements the ladle and the lower width of the support trough is wider than the maximum possible width of the lower contact surface of the support elements of the ladle.
  • the support elements of the ladle in the Support trough not be pinched laterally and the vertical central axis of the ladle or its supporting elements can do little of the vertical central axis the support trough.
  • the two levers are with bearings in pedestals stored, which are part of the support frame. Camps can be used as plain bearings or rolling bearings, e.g. B. roles or Needle roller bearings, run so that you Return moment, which is the weighing accuracy could influence, is negligible.
  • the bearing centers and the lower edge of the support trough lie on the same horizontal axis, so that horizontal force components that may occur have no influence on the weighing result.
  • the two levers are supported in the loaded condition with their support feet on the Contact surfaces of the weighing beam, which in turn turns into known way on the weighing elements or load cells supports.
  • Load cells and weighing beams also form the weighing device here for the ladle.
  • the arrangement of the weighing beam on the weighing elements or load cells is appropriate, but not essential necessary.
  • the levers can also directly on the Place weighing elements or load cells.
  • the levers are unloaded by springs superscript.
  • the centering is slightly flatter than the side surface of the support elements of the ladle.
  • the support trough is slightly wider at the top than that Bottom edge of the support elements of the ladle.
  • Both levers are based on the bearings and the return springs on the other hand on damping cylinders from operated with a hydraulic fluid will. When a compressive force acts on the Damping cylinder flows through the hydraulic fluid one or more channels with nozzles or orifices are equipped, from the lower to the upper chamber of the damping cylinder.
  • the levers are therefore delayed and slow, i.e. not abruptly on the contact surfaces of the Weighing beam off. Without this damping, short-term Load peaks occur on the weighing elements that be several times the weight of the ladle can. Weighing elements that are dimensioned for necessarily have lower accuracy than those whose maximum load is only slightly higher than the nominal resilience.
  • the levers As soon as the lever settles on the weighing beam have and are no longer pushed together can, i.e. no more hydraulic fluid the nozzles or orifices are flowing, the levers also practice no longer exert pressure and thus influence not even the weighing result.
  • the force of between the support frame and levers arranged return springs should be in the raised Condition of the lever to be little larger than the force with which is the dead weight of the levers and the frictional torque of the Bearing is lifted in the pedestals.
  • the Spring force in the lowered state and the weight of the Weighing device and the empty pan is at Tare the weighing device into account so that only the weight of the ladle or that of the liquid Steel is determined in the ladle.
  • the return springs can be inside the Damping cylinders are placed where they are best are protected or outside the cylinder.
  • the bearing blocks are parts of the weighing beam.
  • the levers sit up in the unloaded state Support frames that are part of the support frame. Impact forces when the pan is placed against the Centering surfaces act largely on the Trestles directed onto the support frame. The pan is resting after touchdown only on the Weighing device.
  • Fig. 1 shows the recording device according to the invention with levers (1) raised in the unloaded state.
  • the hinged levers (1) are in pedestals (2) attached to the support arm (15).
  • the levers (1) rest on the bearing (3) Return springs (6) and on damping cylinders (4) and point to the one opposite the bearing (3) Side an inclined centering surface (14) and one Support foot (1a) on the support surface (12) of the weighing beam (11) of the weighing device (16) with the Load cells (17) in the loaded state.
  • the two bearings (3) are in a common one horizontal axis (9).
  • the receiving device can, for example, in one Ladle turret of a continuous caster, in one Ladle transport trolley u. a. where the liquid metal is weighed during the casting.
  • the inclination of the centering surfaces (14) is somewhat flatter as the lower side (7) of the pan support elements (19) and the width of the support trough (10) by the Support feet (1a) the lever (1) is formed is something wider than the bearing surfaces (7, 7a) Pan support elements (19).
  • the levers (1) are therefore delayed and slow, d. H. not suddenly, on the bearing surfaces (12) of the Weighing beam (11).
  • Fig. 3 shows an embodiment where the bearing blocks (2) for the levers (1) are part of the weighing beam (11) and where the lever (1) in the unloaded state (dashed version) on the trestles (20) deposit that are part of the support frame (15).
  • the levers (1) are superscripted in the unloaded state, that the overall focus of the lever (1) each is outside its camp, i.e. each on the Center axis (8) facing away from the bearing (3).
  • the support feet (1a) lie in the lowered state the bearing surface (12) of the weighing beam (11) on and are directly in the middle above the weighing elements or Load cells (17) arranged.
  • Fig. 4 shows a plan view of the on the support frame (15) a turret of a continuous caster arranged receiving and weighing device, in which the Bearing blocks (2) for the lever (1) part of the weighing beam (11) are.
  • the pan (18) is supported by the pan support elements (19) on both sides of the support frame (15).

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Casting Support Devices, Ladles, And Melt Control Thereby (AREA)
  • Weight Measurement For Supplying Or Discharging Of Specified Amounts Of Material (AREA)

Claims (3)

  1. Dispositif de support et de pesage monté au châssis de support d'un dispositif de transport de poches de coulée ayant des leviers orientables autour de leurs axes horizontaux avec des supports inclinés et surfaces de guidage, pour les éléments de support de poche de coulée, se distinguant par des leviers (1) ayant des roulements (3) arrangés face à face sur les extrémités du cadre de support (15) sur des paliers (2) externes, des ressorts de rappel (6) arrangés entre le cadre de support (16) et les leviers (1), des cylindres d'amortissement (4) entre le cadre de support (16) et les leviers (1) et chaque levier (1) ayant un pied de support (1a) pour s'appuyer sur la surface d'appui (12) du dispositif de pesage composé des poutres de pesage (11) et cellules de pesage (17).
  2. Dispositif de support et de pesage conforme au droit 1, se distinguant par les leviers (1) étant redressés en verticale en condition sans charge par le centre de gravité des leviers étant en dehors des roulements (3) tout en renonçant aux ressorts de rappel
  3. Dispositif de support et de pesage aux châssis de support d'un dispositif de transport de poches de coulée ayant des leviers orientables autour de leurs axes horizontaux avec des supports inclinés et surfaces de guidage pour les éléments de support de poche de coulée se distinguant part les extrémités de la poutre de pesage (11) supportant des leviers (1) arrangés face à face (3), le centre de gravité global des leviers (1) étant en dehors de leurs supports (3), les leviers (1) en condition sans charge restant sur des paliers de support (20) lesquels font partie du cadre du support (15), des cylindres d'amortissement (4) étant arrangés entre le cadre de support (15) et les leviers (1) et par chaque lever (1) ayant un pied de support (1a) pour s'appuyer sur la surface d'appui (12) de la poutre de pesage (11).
EP94116785A 1993-12-24 1994-10-25 Support et dispositif de pesage pour poches de coulées Expired - Lifetime EP0659505B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4344367 1993-12-24
DE4344367A DE4344367A1 (de) 1993-12-24 1993-12-24 Aufnahme- und Wiegevorrichtung für Gießpfannen

Publications (2)

Publication Number Publication Date
EP0659505A1 EP0659505A1 (fr) 1995-06-28
EP0659505B1 true EP0659505B1 (fr) 1998-03-04

Family

ID=6506132

Family Applications (1)

Application Number Title Priority Date Filing Date
EP94116785A Expired - Lifetime EP0659505B1 (fr) 1993-12-24 1994-10-25 Support et dispositif de pesage pour poches de coulées

Country Status (4)

Country Link
EP (1) EP0659505B1 (fr)
JP (1) JPH07204832A (fr)
AT (1) ATE163585T1 (fr)
DE (1) DE4344367A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103586450B (zh) * 2013-10-25 2016-05-18 江苏联峰能源装备有限公司 一种钢包导向支架

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2124176B2 (de) * 1971-05-15 1979-05-03 Schloemann-Siemag Ag, 4000 Duesseldorf Zwischenbehälterwagen an einer StranggieBanlage
AT367330B (de) * 1980-12-02 1982-06-25 Voest Alpine Ag Waegevorrichtung fuer metallurgische gefaesse
DE3535935A1 (de) * 1985-10-04 1987-04-16 Mannesmann Ag Aufnahmevorrichtung fuer giesspfannen

Also Published As

Publication number Publication date
EP0659505A1 (fr) 1995-06-28
JPH07204832A (ja) 1995-08-08
DE4344367A1 (de) 1995-06-29
ATE163585T1 (de) 1998-03-15

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