US3688951A

US3688951A - Heated casting ladle support arrangement

Info

Publication number: US3688951A
Application number: US72365A
Authority: US
Inventors: Horst Gillhaus; Emil Simons
Original assignee: BBC Brown Boveri France SA
Current assignee: BBC Brown Boveri AG Germany; BBC Brown Boveri France SA
Priority date: 1969-09-20
Filing date: 1970-09-15
Publication date: 1972-09-05
Anticipated expiration: 1989-09-05
Also published as: JPS4948821B1; DE1947711A1; DE1947711B2; DE1947711C3

Abstract

A support arrangement for a tiltable heated casting ladle includes a frame movably supported by flanged wheels riding on rails and containing support means for the ladle. The support means comprises an open bearing support on one side of the frame and a horizontally disposed bolt positioned on a bearing pedestal on the opposite side of the frame. A horizontally extending pin is secured to one side of the ladle and is supported in the open bearing support and a vertically extending downwardly directed fork is attached to the other side of the ladle and has recesses in its lower end which sit on the bolt mounted on the bearing pedestal. Alternatively, a downwardly directed fork can be fitted on each of two opposed sides of the ladle and supported on bolts mounted on bearing pedestals on each side of the frame.

Description

United States Patent Gillhaus et a].

[ 51 Sept. 5, 1972 [54] HEATED CASTING LADLE SUPPORT 211 Appl. No.: 72,365 v [30] Foreign Application Priority Data Sept. 20,1969 Germany ..P 19 47 711.3

52 vs. C] ..222/166, 222/010. 8

51 lnt.Cl ..B67d5/64 5s Fieldofsearchn; ..;....222/l66, 559

[56] References Cited UNITED STATESPATEN'IS 7 1,469,225 10/1923 Ladd ..'.[.222/DIG. 8

2,036,115 3/1936 Branch ..222/166 Primary Examiner-Stanley H. Tollberg Attorney-McGlew and Toren ABSTRACT A support arrangement for a tiltable heated casting ladle includes a frame movably supported by flanged wheels riding on rails and containing support means for the ladle. The support means comprises an open bearing support on one side of the frame and a horizontally disposed bolt positioned on a bearing pedestal on the opposite side of the frame. A horizontally extending pin is secured to one side of the ladle and is supported'in the open bearing support and a vertically extending downwardly directed fork is attached to the other side of the ladle and has recesses in its lower end which sit on the bolt mounted on the bearing pedestal. Alternatively, a downwardly directed fork can be fitted on each of two opposed sides of the ladle and supported on bolts mounted on bearing pedestals on each side of the frame.

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HEATED CASTING LADLE SUPPORT ARRANGEMENT SUMMARY OF THE INVENTION can be removed from its support without requiring dis- 0 assembly of the support.

Heated casting ladies are used in various forms and designs for filling intermediate vessels and for the direct casting of melt material into molds.

In German Pat. No. 747,348, a tiltable melting furnace is described which has closed bearings for receiving the pivot pins of the furnace. One of the pivot pins is connected with a turning gear. This arrangement has the disadvantage that before the furnace can be removed for repairs, the bearings must be taken apart and later reassembled after the reinstallation of the furnace.

In German Auslegeschrift 1,288,767, a casting device is disclosed which includes a rolling undercarriage on which a frame is displaceable normal to its direction of movement. The frame includes half-shells for supporting a plug ladle, when the ladle is emptied, it is lifted by means of a crane out of the open bearing shells for refilling after which it is replaced on the frame. In such a mounting arrangement, the ladle cannot be tilted because of the danger that it might be displaced out of its half-shell bearings.

The primary object of the present invention is to afford a tiltable heated casting ladle which can be lifted out of its support bearings without any disassembly of the bearings when it is necessary to remove the ladle for repairs or other purposes.

Therefore, in accordance with the present invention, a support arrangement for a tiltable casting ladle includes an open bearing support on one side of a frame and a horizontally extending bolt secured on a bearing pedestal on the opposite side of the frame with a pin secured to and extending horizontally from one side of the ladle and supported in the open bearing support and a vertically extending downwardly directed fork member secured to the other side of the ladle and having recesses in its lower ends which fit on the bolt on the bearing pedestal.

Alternatively, in another embodiment of the invention, in place of the pin on one side of the ladle, both sides of the ladle can be provided, in a mirror-symmetrical arrangement, with vertically extending downwardly directed forks arranged to fit on bolts mounted on bearing pedestals on opposite sides of the frame.

Further, to avoid the necessity for disassembling and reassembling the tilting device when the ladle is removed, the present invention includes a two-armed lever mounted intermediate its ends on the horizontal bolt supporting the fork member of the ladle. The arms of the lever extend outwardly from one another on opposite sides of the point of attachment of the lever to the bolt. The free end of one arm is fitted into a recess in the fork member located upwardly from the horizontal bolt and its other free end is connected to a piston rod which extends outwardly from a piston cylinder articulated to the frame. To provide symmetrically acting forces for pivoting large and, as a result, heavy casting ladles, with a favorable effect on the design of the ladle as well as on that of the frame, the opposite sides of the ladle contain the vertically extending downwardly directed forks supported on the horizontal bolts and a two armed lever is secured to each of the bolts, with one free end of the lever in engagement with the fork member and the other free end secured to a piston rod extending from a piston cylinder articulated to the frame.

To assure that the frame supporting the ladle is freely movable, the actuating device for the piston cylinder or cylinders can be mounted on the frame for the ladle.

For quickly separating the ladle from its source of heat energy the invention includes the provision of rapid couplings in the lines which supply heat energy to the heating device of the ladle.

The various features of novelty which characterize the invention are pointed out with particularity in the claims annexed to and forming a part of this specification. For a better understanding of the invention, its operating advantages and specific objects attained by its use, reference should be had to the accompanying drawings and descriptive matter in which there are illustrated and described preferred embodiments of the invention.

BRIEF DESCRIPTION OF THE DRAWINGS In the drawings:

FIG. 1 is a side view of an induction trough furnace with plug discharge used as a casting ladle tiltably mounted on a frame in accordance with the present invention; and

FIG. 2 is a sectional view of the arrangement shown in FIG. 1 taken along the line AB.

DETAILED DESCRIPTION OF THE INVENTION In FIGS. 1 and 2 a rail carriage l movably supports flange wheels 2 and 3 which are secured to and provide movable displacement for a frame 4. An induction trough furnace 5 with a bottom outlet 6 for the discharge of the melt, is mounted on the frame and acts as a casting ladle.

As shown in FIG. 2, a bearing shell 7 open at its top is mounted on the frame 4 and a horizontally extending pin 8 secured to the induction trough furnace 5 is supported in the bearing shell. On the opposite side of the frame 4 a bearing pedestal 13 is secured to it and supports a horizontally disposed bolt 12 having its axis extending in parallel relationship with the axis of the pin 8. A vertically extending downwardly arranged fork member 9 is secured to the furnace 5 above the bolt 12 andthe lower free ends 10 of the fork and each provided'with a recess 11 which fits downwardly onto the bolt 12. In order to pivot or tilt the furnace 5 about a horizontal axis, a two-armed lever 14 is rotatably mounted on the bolt 12 at a position intermediate its opposite ends. Each of its arms extends to a free end in an opposite direction from the point of support on the bolt 12. One free end 15 of the lever 14 extends upwardly and fits into a corresponding bore 16 in the central part 17 of the fork 9. The other free end 18 of the lever 14 is located below the pin 12 and is connected by means of a pin 19 to the end 20 of piston rod 21 which extends outwardly from a piston cylinder 22 which is articulated to the frame 4.

An actuating device 23 for operating the piston cylinder 22 is located in a cabinet 24 mounted on the frame 4.

Additionally, a lifting device 25 for the furnace cover 26 is positioned on the frame 4 and the cover closes the filling opening 27 of the furnace when casting takes place.

For proportioning the discharge of melt materi from the outlet 6 a control device 28 is positioned on the induction trough furnace for controlling the movement of a plug rod 29.

Located at the lower end of the furnace is a trough body 30 which is subject to the greatest wear and can be replaced when the furnace has been tilted in the partially filled state.

' Supply lines 31 extend between an inductor, not shown, positioned in the trough body 30 and a current supply source, not shown, and rapid couplings 32 are provided for connection to the inductor so that interruptions in production are kept to a minimum when a furnace 5 is removed and is replaced by another one.

In accordance with the present invention, the advantages are achieved in that the casting ladle or furnace 5 can be lifted off its bearing supports on the frame and it can be removed from its tilting member without the requirement for any disassembly or reassembly of any of the parts involved.

What is claimed is:

l. A heated casting ladle support arrangement comprising a frame, a ladle mounted on said frame and tiltable thereon about a horizontal axis, support means arranged at least on one side of said ladle and comprising a bearing pedestal, a horizontally extending bolt supported on said bearing pedestal, and a fork member secured to said ladle and having a pair of vertically extending downwardly directed legs, the lower end of each of said legs on said fork member having a recess therein for fitting removably on said bolt, a two-armed lever rotatably mounted on said bolt on said bearing pedestal and having one arm extending upwardly therefrom and the other arm oppositely directed from said one arm, said fork member comprising a central part interconnecting said legs, said central part having a bore therein, hydraulic means in operative engagement with said lever, the free end of one arm of said lever fitted in engagement within said bore in said central part of said fork, the other said arm of said lever connected to said hydraulic means so that said twoarmed lever can be rotated about said bolt on said bearing pedestal for tilting the casting ladle.

2. A heated casting ladle support arrangement, as set forth in claim 1, wherein said support means is secured to each of two opposite sides of said ladle.

3. A heated casting ladle support arrangement, as set forth in claim 1, wherein said support means is located on one side of said ladle, an open bearing support secured to the opposite side of said frame from said support means, a pin secured to and extending horizontally from the side of said ladle adjacent said open bearing support and supported in said open bearing suport. p 4. A heated casting ladle support arrangement, as set forth in claim 1, wherein said hydraulic means comprises a piston cylinder articulated to said frame, a piston rod extending axially from said piston cylinder,

and the free end of the other arm of said lever bein connected to the end of said piston rod extending ou wardly from said piston cylinder so that by displacing said piston rod within said piston cylinder said twoarmed lever can be rotated about said bolt on said bearing pedestal.

5. A heated casting ladle support arrangement, as set forth in claim 2, wherein two said bearing pedestals arranged one on each of the opposite sides of said frame, one of said two-armed levers rotatably mounted on each of said bolts, and said hydraulic means comprises a pair of piston cylinders each articulated to an opposite side of said frame corresponding to the opposite sides on which said bearing pedestals are located, a piston rod extending axially from each said piston cylinder, the free ends of the other arms of said levers each movably connected to the end of a different one of said piston rods so that by cooperatively displacing said piston rods within said piston cylinder said twoarmed levers can be rotated about said bolts on said bearing pedestals for tilting said ladle.

6. A heated casting ladle support assembly, as set forth in claim 4, wherein an actuating device is mounted on said frame for operating said piston rod within said piston cylinder.

7. A heated casting ladle support arrangement, as set forth in claim 4, wherein rapid couplings provided on said casting ladle for quickly connecting and disconnecting energy supply lines to said casting ladle for supplying heat thereto.

8. A heated casting ladle support arrangement, as set forth in claim 4, wherein said casting ladle has a bottom outlet for discharging the melt therefrom, a plug rod supported in said casting ladle for regulating flow from said bottom outlet, and a control device mounted on said casting ladle for selectively displacing said plug rod for controlling the quantity of melt discharged from said bottom outlet.

Claims

1. A heated casting ladle support arrangement comprising a frame, a ladle mounted on said frame and tiltable thereon about a horizontal axis, support means arranged at least on one side of said ladle and comprising a bearing pedestal, a horizontally extending bolt supported on said bearing pedestal, and a fork member secured to said ladle and having a pair of vertically extending downwardly directed legs, the lower end of each of said legs on said fork member having a recess therein for fitting removably on said bolt, a two-armed lever rotatably mounted on said bolt on said bearing pedestal and having one arm extending upwardly therefrom and the other arm oppositely directed from said one arm, said fork member comprising a central part interconnecting said legs, said central part having a bore therein, hydraulic means in operative engagement with said lever, the free end of one arm of said lever fitted in engagement within said bore in said central part of said fork, the other said arm of said lever connected to said hydraulic means so that said twoarmed lever can be rotated about said bolt on said bearing pedestal for tilting the casting ladle.

3. A heated casting ladle support arrangement, as set forth in claim 1, wherein said support means is located on one side of said ladle, an open bearing support secured to the opposite side of said frame from said support means, a pin secured to and extending horizontally from the side of said ladle adjacent said open bearing support and supported in said open bearing support.

4. A heated casting ladle support arrangement, as set forth in claim 1, wherein said hydraulic means comprises a piston cylinder articulated to said frame, a piston rod extending axially from said piston cylinder, and the free end of the other arm of said lever being connected to the end of said piston rod extending outwardly from said piston cylinder so that by displacing said piston rod within said piston cylinder said two-armed lever can be rotated about said bolt on said bearing pedestal.

5. A heated casting ladle support arrangement, as set forth in claim 2, wherein two said bearing pedestals arranged one on each of the opposite sides of said frame, one of said two-armed levers rotatably mounted on each of said bolts, and said hydraulic means comprises a pair of piston cylinders each articulated to an opposite side of said frame corresponding to the opposite sides on which said bearing pedestals are located, a piston rod extending axially from each said piston cylinder, the free ends of the other arms of said levers each movably connected to the end of a different one of said piston rods so that by cooperatively displacing said piston rods within said piston cylinder said two-armed levers can be rotated about said bolts on saiD bearing pedestals for tilting said ladle.