LU87386A1 - AUTOMATIC LANCES CHANGER - Google Patents

Description

p k GRAND-DUCHÉ DE LUXEMBOURG BL 4168

Brevet N ° ..0 ...-. / ......- O — O 0 'Monsieur le Ministre. du ........... 16 novembre ..... 1988 rïirÊi 'de l’Économie et des Classes Moyennes _, 3¾¾ Service de la Propriété Intellectuelle

TltredellVrt ..................................... I possibly LUXEMBOURG

Demande de Brevet d'invention ............................................ .................................................. .................................................. . (1) I. Requête

La société dite: Paul Wurhh S.A. ,.

.......................-.......................... .............................. ···· ................ .....-............................................ .................................................. .................................................. ........................ — ......................... ........................... (. 2) ................... .............................. .................... .................... 32 ..... sue ...... dlAlsace .., ...... LUXEMBOURG, ..... .................................................. .................................................. .....................................

....... représentée par E »T ...... Freylinger & ..... E ....... Meyers ....... Ing ........ cons ....... en ..... PI * ..................

46 rue du Cimetière, ÏOÏi Luxembourg, agissant en qualité de ^ 3) ...... MANDATAIRES ............................ .................................................. .................................................. .............................................: .... .................................................. .................................................. .....................................

déposefnt) ce ............ s.eize .... no.vemb.re .... mi.l ..... neuf ..... cent- quatreuviagtHbuife .. ...............................................- .. .............. (4) à ...... 15-00 .......... heures, au Ministère de l'Économie et des Classes Moyennes, à Luxembourg: 1. la présente requête pour l'obtention d'un brevet d'invention concernant: ............................. ...................-.............................. .................................................. .................................................. .................................................. .................................................. .................................................. ........................ (5) ..... "Automatic ..... lance changing device" ......... .................................................. .................................................. .................................................. .................

2. la description en langue ..... al lemande -.................................... ................................... de l'invention en trois exemplaires; 3. ................................................ planches de dessin, en trois exemplaires; 4. la quittance des taxes versées au Bureau de l'Enregistrement à Luxembourg, le 46-.11,19 88 .......................... .........; 5. la délégation de pouvoir, datée de · £ ^ εκΒσαΓ0. · ................................... .................... le 26.,. 09., 1988 ..................... ..........; 6. le document d’ayant cause (authorization); déclare (nt) en assumant la responsabilité de cette déclaration, que l '(es) inventeur (s) est (sont): (6) revendique (nt) pour la susdite demande de brevet la priorité d'une (des) demande ( s) de (7) ..... / ...................................... .................................................. .................................................. ................... déposée (s) en (8) ... '................... .................................................. .............................................

le (9) ......... / .................................... .................................................. .................................................. .................................................. .................................................. .................................................. .......

sous le N ° (10) .....! ..................................... .................................................. .................................................. .................................................. .................................................. .................................................. .........

au nom de (11) j ........................................... .................................................. .................................................. .................................................. .................................................. .................................................. .....

élit (élisent) domicile pour lui (elle) et, si désigné, pour son mandataire, à Luxembourg .......: ..................... .................................................. ..........

.4.6 ..... xu <3 ...... du ..... Cimetière, ...... 10.1.1 ..... Luxembourg · ......-... .................................................. ....... ............., ............................. .................................................. ........ (12) sollicite (nt) la délivrance d'un brevet d'invention pour l'objet décrit et représenté dans les annexes susmentionnées, avec ajournement de cette délivrance à ...... dix » huit ................................................. .................................................. ......................-........................... ......... mois. (13) / mandataires ......... RJL ...... Freylinger ............................ .................................................. .................................................. .................................................. ..... (14) mmm Π. Procès-verbal de Dépôt

La su ^ aite ^ lemanae de brevet d’invention a été déposée au Ministère de l’Économie et des Classes Moyennes,

Service de / la Propriété Intellectuelle à Luxembourg, en date du:, ^ ____! Ύ 6 16 novembre 1988 J -.- · ** '""' VL, \ Λ, '.a * ^ Pr. Le Ministre de l'Économie et des Classes Moyennes, à 15 ..:. 00 .... .......... heures $ -¾ \ p. d.

ξ I 1 '' λ- 'Λ f *: Le chef du service de la propriété intellectuelle, 4 s \ ", 1 ni \ \ ··· ... ··:« * & <.. ··. ·? .- / A 68007_ "" "" "_ EXPLICATIONS RELATIVES AU FORMOLAIKH BErifiPÔïk '' ^ (1) s'il ya lieu" Demande de certificat d'addition au4we ¥ gu »» icipal. Ma demande de brevet principal No ... ......... du ............ ”- (2) inscrire les nom, prénom, profession, / 0 A Γ address du demandeur, lorsque celui-ci est un particulier ouïes dénomination sociale, formme juridique, adresse du siège social, lorsque le demandeur est une personne morale - (3) inscrire Γ f les nom, prénom, adresse du mandataire agréé, conseil en propriété industrial, muni d'un pouvoir spécial, s' il ya lieu: "représenté par ............ agissant en qualité de mandataire” ^ - (4) date de dépôt en toutes lettres - (S) titre de l'invention - (6) inscrire les noms, prénoms, adresses des inventeurs ou l'indication "(voir) désignation séparée (suivra)", lorsque la dési gnation se fait ou se fera dans un document séparé, ou encore l’indication "ne pas mentionner”, lorsque l’inventcursigne ou signera un document de non-mention à joindre à une désignation BL-4168 Mémoire descriptif déposé à l'appui d'une demande de brevet pour

AUTOMATIC LANE CHANGE DEVICE

déposée au nom de Paul Wurth S.A.

32 rue d'Alsace LUXEMBOURG

AUTOMATIC LANCES CHANGE DEVICE

The invention relates to an automatic lance changing device, in particular for lances to be coupled and fastened to a vertically movable lance carrier slide in the steel production by means of an inflation process, a coupling head on the lance carrier slide supplying and supplying the materials required for freshening, and optionally also a cooling fluid the coupling point 10 are transferred between the coupling head and the upper part of the lance, and wherein the coupling and fastening of the lances to the coupling head of the lance carrier slide by means of a

Lance upper part provided flange, or the same, takes place.

Document LU-69797 has made known a new type of lance of the above-mentioned type, which has the great advantage over the prior art that, despite the presence of a plurality of channels for the supply of said substances and fluids through a single operation can be connected to the associated coupling head, this

Operation in the described embodiment consists of 25 manual attachment of a pivot pin connection on both sides of the upper part of the lance.

In order to automate this manual fastening, a device is proposed in document LU-86985 which works completely satisfactorily per se, however, a different design of the coupling head must be provided in this device, so that existing systems do not simply use this automation device can be changed. Furthermore, in the case of the 35 configuration of the lansen upper part originally provided for in document LU-69797 for attachment by means of a pivot pin system, it cannot be maintained in the given form, so that complications also arise in this point in the event of a possible change from a pivot pin system the system according to document LU-86985 mentioned above.

Another suggestion to automate the lance change process is made in document LU-10 filed on November 16, 1988 (our mark BL4167). This proposal has the advantage that existing lance changing devices can be automated with relatively simple means with manual actuation of the mentioned pivot bolts while largely maintaining the design 15 of the coupling head and the upper part of the lance. However, a relatively large lateral space requirement is required for the swivel chassis or frame provided there for swiveling them out, which can be difficult to implement under certain circumstances; in addition, a total of four drive units must be provided in this swivel chassis configuration.

To avoid these more or less major 25 disadvantages of the state of the art, but also to give the respective user the possibility, among a number of generally adequate solutions for the automation of the lance change process, for the given application and the 30 To be able to select the most favorable space, it is the object of the invention to propose a further automatic lance changing device of the type mentioned at the outset, in which, while largely maintaining the design of the coupling head and the upper part of the lance, as the latter were designed for the original pivot pin attachment, the lance can be replaced without any significant additional space requirement.

Starting from an automatic lance changing device of the type mentioned at the outset, this issue is solved by the features stated in the characterizing part of the main claim.

An embodiment of the invention is shown in the drawings, in which the same parts are provided with the same 10 reference numbers, and is described in more detail below. Show it :

Figure 1, an overall side view of the lance changing device with the vertically movable lance carrier slide and the lance upper part in 15 different levels entered, once at the lance transfer level (dash-dotted) and then in the fastening position on the coupling head (fully lined);

Figure 2 is a plan view corresponding to section A-A in Figure 1;

Figure 3, a plan view corresponding to a

Section B-B in Figure 1;

Figure 4 is a view, partly in section, of the left of the two rotating / lifting pin mechanisms provided on both sides of the coupling head for coupling the upper part of the lance;

FIG. 5 shows a bottom view in viewing direction C of a detail from FIG. 4;

FIG. 6 shows a side view of the object according to FIG. 5.

FIG. 1 shows an overall view of the upper part of a plant, known in its essential parts, for the vertical movement of a diving lance 10. This diving lance 10 has a mounting flange 12 on its upper extreme 35, which in the

Figure is shown in two different levels 4, wherein the dash-dotted position 12 'corresponds to the level at which the lance is transported by a lance transfer device, not shown, for feeding or discharging the lance, or 5 from a coupling head 14, while the position 12 shows the flange in the coupled position.

The essential structure of the coupling head 14 with which the lance is firmly locked in the operating or ready position is known from documents LU-69797 and LU-86985. The attachment of a lance 10 provided with a mounting flange 12 can, as mentioned above, to the coupling head by means of pivot bolts, which can be operated manually or automatically 15, as described in the document LU- filed on November 16, 1988 (our sign BL4167) 14 are tightened. For this purpose, the fastening flange 12 has two diametrically opposed laterally open fastening openings 16, 18 (FIG. 2).

According to the invention, however, the flange 12 is not blocked with the coupling head 14 by means of pivot bolts, but rather by means of two lifting / rotating bolts 20, 22 which are connected at their lower extremities to a head 24 or 26 integral with the bolt 25.

The mathematical longitudinal axes 28, 30 of the bolts 20, 22 assume a fixed position in space, however, the bolts 20, 22 with their 30 respective heads 24, 26 can be moved along these axes and rotated about them, for which purpose each of the two Bolt a mechanism 32 or 34 is assigned, of which the mechanism 32 is shown in Figure 4 in section and on an enlarged scale 35 (the description of Figure 4 follows below).

5

The two mechanisms 32, 34 are driven via vertical spindles 36 or 38, which in turn are each driven by means of a drive motor / gear unit 40, 42 of a type 5 known per se. The two drive systems are provided at any suitable location with a torque monitor, not shown, which switches off the drive when a predetermined maximum value is reached.

10 Since the spindles 36, 38 are only actuated when changing the lance, which is only necessary after a certain number of fresh operations, the drive units 40, 42 for these spindles 36, 38 are mounted on a 15 carriage 46 separate from the lantern carrier slide 44, which the Stroke movements of the lance 10 from their parking position according to Figure 1 and their working position, not shown, and vice versa, not carried out. The carriage 46 serves to drive the drive units 40, 42 by lowering the lance when a lance change finally becomes necessary, which takes place in the parked position of the lance shown in FIG

Slide the carriage 46 into its position according to FIG. 1 by means of couplings 48, 50 with the spindles 36, 38 in a rotationally fixed manner 25.

FIG. 4 shows the left part of the coupling head 14, indicated by broken lines, and a section through the brewing / lifting pin mechanism 32 assigned to it, that is to say through one of the two 30 diametrically opposite rotating / lifting piston mechanisms 32, 34 {see figures 1 and 2). As in FIGS. 1 to 3, the vertical axis 0 is the common longitudinal axis of the coupling head 14 and the lance 10.

35 The purpose of the rotary / piston mechanism 32 is to move the bolt head 24 out of its position 24 ', in which 6 the laterally open fastening hole 16 of the lance flange 12 when it is lifted from its transfer level 12' (see FIG. 1} to its level 12 for blocking with the coupling head 14 unimpeded 5 can be passed past the bolt head 24 '(see also FIG. 5) into its position 24, in which it, rotated through 90 ° about the longitudinal axis 28 of the bolt, the flange 12 in the sense of pressing the same 10 against the coupling head 14 (see also FIGS. 5 and 6); for this purpose, in addition to a quarter-turn movement, a lifting movement of the bolt 20 with its head 24 is also necessary.

In order to generate the above-mentioned movements of the bolt 20 and its head 24, the spindle 36 drives a primary gear 60 associated with it, a secondary gear 62, the longitudinal axis of which is coaxial with the bolt axis 28. This gear 62 is axially immovable by means of roller bearings 64, 66 fixed on the coupling head 14.

20 Through an external thread 70 on the bolt 20 and an internal thread 72 cooperating with this thread on the bore of the secondary gear 62, the bolt 20 forms a screw drive with the gear 62, which makes it possible to impart a stroke movement to the bolt 20 with its head 25 24.

In order to additionally impart a quarter-turn movement to the bolt 20 in addition to the aforementioned lifting movement, as is necessary for moving the bolt head from its position 24 'into its position 24, the bolt 20 has an essentially spatially extending groove 74 on its upper extremity, which cooperates with a finger 76 integral with the coupling head 14.

The groove 74, like the bolt 20, is shown with its head 24 in its two extreme positions, the dash-dotted line in FIG. 7

Position 74 'corresponds to the head position 24' and the position 74 shown in broken lines corresponds to the head position 24.

An essential aspect with regard to the groove design is that a straight, that is to say axially running, section 78 is provided at its upper end as well as a section 80 of this type (section 80 'for head position 24') at its lower end.

This subdivision of the groove into three sections, an upper straight 78 or 78 ', a spatially curved 82 or 82' over an angle of 90 °, and a lower straight 80 or 80 ', are accordingly used of the finger 76 during a stroke movement of the bolt 20 generated by the screw drive 15 70/72, starting from its position 20 ', a short vertical movement (groove piece 78'), a rotary movement 90 ° combined with a stroke movement (groove piece 82 ') and a further vertical movement 20 (groove piece 80 ') mediates until the bolt assumes its position 20 at the end of these processes, its head the position 24, and the groove the position 74.

A lance change process thus takes place essentially as follows: 25 The coupling head 14 with the lance 10 blocked therewith is in the park position according to FIG. 1. By lowering the slide 46 into its position according to FIG. 1, the couplings 48, 50 become Engaged and thus the drive 30 units 40, 42 rotatably connected to the spindles 36, 38. When the drive units are actuated in a corresponding direction of rotation, the rotary / lifting piston mechanisms 32, 34 are set in motion 35 in the sense of a downward movement of the bolts 20, 22 (for the sake of further description, only the movements of the in δ

Figure 4 shown mechanism 32 considered). Since the bolt is originally in its position 20, the straight groove section 80 first takes effect, as a result of which the head 24 releases the coupling flange 12 by a corresponding 5 pure downward movement; the lance is held in place by transfer mechanisms (not shown). As can be seen from FIG. 6, the pure downward movement mentioned must have a sufficiently large stroke for the head 24 to be released from semicircular head guide strips 84, 86 on the underside of the lance flange 12 before a rotary movement of the head can begin; this gives the at least necessary axial length of the straight groove section 80. The curved groove section 82 then takes effect, as a result of which the bolt head receives its position 24 '. When the groove section 78 subsequently becomes effective, the bolt head is fixed in its angular position 24 ′, after which the drive units 40, 42 can be switched off. The

Lance flange 12 can now be unhindered from the head 24 'by means of the transfer device

Transfer and discharge level (Figure 1) can be lowered.

25 In the subsequent assembly of a new lance, the processes described naturally take place in the reverse order, whereby it should be noted that when the bolt 20 with its flange actuating head 24 30 has reached a certain lifting height, the spindle drive is switched off by means of the torque monitors mentioned above. The carriage 46 can now be raised, whereby the spindles 36, 38 are uncoupled and the system is ready for the next fresh process.

35 In the configuration of the

For the sake of illustration, invention became an elongated 9th

Bolt head selected, which is ideally suited to interact with lance flanges, such as those used in their essential shape, also for pivot bolt attachments. Of course, this 5 has the advantage that the lance changing device according to the invention can also be used in the case of lances which may already exist and are designed for a pivot pin fastening. However, it is of course possible to give both the lance flange 10 fastening opening and the bolt head any shape; the only condition here is that the head does not impede a lifting movement of the lance flange in a first angular position and can act on the lance flange 15 from below in the sense of pressing the same against the coupling head in a second angular position.

Claims (6)

1.Automatic lance changing device, in particular for lances to be coupled and fastened to a vertically movable lance-5 carrier carriage in the steel production by means of an inflation process, the coupling materials on the lance carrier carriage being supplied with the materials required for freshening and, if appropriate, also a cooling fluid, and on the Coupling point between the coupling head and 10 lance upper part are transferred into the latter, and the coupling and attachment of the lances to the coupling head of the lance carrier slide takes place by means of a flange provided on the lance upper part, or the like, characterized in that at least 15, preferably diametrically, 15 coupling head (14) Opposed rotary / piston mechanisms (32, 34) with vertical bolts (20, 22) are provided, which can both be rotated about their longitudinal axis (28, 30), which is stationary per se, and can also be displaced along the same, that the bolts (20,22) at their bottom Ren extremity, which is assigned to the said lance flange (12), each have a head (24, 26), or the like, which is designed in such a way that the lance (10) 25 with its lance flange (12) during a stroke movement by means of a known lance transfer or handling device for bringing the upper part of the lance to the coupling head (14) can be lifted 30 past the bolt heads (24, 26) without hindrance if the said bolts (20, 22) with their respective heads (24, 26 ) assume a first angular position, and that the said bolts (20, 22) with their heads (24, 26) can be given a second angular position with the aid of the mechanisms (32, 34) mentioned, in which they are thus a 11 said flange (12) can cooperate such that the bolt heads (24, 26) act on the flange (12) from below and by means of a lifting movement of the bolts (20, 22) the upper part of the lance against the cup associated with it on the coupling head (14) pressing surfaces and thus the lance (10) is firmly locked to the coupling head f (14). 2. Automatic lance changing device according to claim 1, characterized____________ that that 10 bolts (20, 22) of the rotary / lifting pin mechanisms (32, 34) secondary gear wheels (62) are mounted, which are provided in their bore with a nut thread (72) that these gear wheels (62) axially in a manner known per se are firmly mounted on the coupling head (14) and 15 that the bolts (20, 22) are each provided with a bolt thread (70) over a certain section of their axial length, which forms a lifting screw drive with the nut thread (72). 3. Automatic lance changing device according to claim 1 or 2, characterized in that a guide groove (74) with a partially straight, axial course (71, 80) and a partially spatially curved course (82) is provided on the bolts (20, 22) which cooperates with a finger (76) which is integral with the coupling head (14) 25 and which, when the secondary gearwheels (62) are actuated, carry out the bolts (20, 22) in a pure lifting or lowering movement when the said finger (76 ) interacts with the straight sections (78, 80) of said groove 30 (74), and that the bolts (20, 22) perform a combined lifting or downward movement and rotary movement when the finger (76) with the curved course ( 82) of the groove (74) interacts. 4. Automatic lance changing device after 35 Claim 2, characterized______________________________________ that the secondary gears (62) are driven by primary gears (60) * t '* ί 2, which are rotatably and axially fixed at the lower end of> vertical drive spindles (36,38), and that these Drive spindles (36, 38) with their gear wheels (60) are integrating parts 5 of the rotary / lifting pin mechanisms which, together with the coupling head (14), also carry out the vertical operating movements of the lance (10). 5. Automatic lance changing device according to claim 4, characterized by two drive units (40, 42), which are mounted vertically movable on a carriage (46) and to carry out a lance change via couplings (48, 50) with the spindles (36, 38 ) can be coupled. 6. Automatic lance changing device according to claim 15, characterized in that in the drive train from the drive units (40, 42) to the primary gears (60) at any suitable location torque monitors are provided, which when attaching a new lance 20 Switch off the drive when the bolt heads (24, 26) press the lance flange (12) against the coupling head (14) with a predetermined axial force.