CN2162317Y - Extension four-connecting-rod inner crystalline apparatus - Google Patents

Abstract

The utility model relates to an extension four-connecting-rod inner crystalline apparatus. Cylindrical crystalline apparatuses are formed by that curved inner crystalline apparatus blocks and wedge-shaped inner crystalline blocks are combined in intervals; each inner crystalline apparatus block is connected with four connecting rods; a through movable four-connecting-rod mechanism can make the inner crystalline shrink inward, so, the inner crystalline can be conveniently taken out from a hollow ingot; the utility model has the advantages that high quality hollow mirrors can be produced by using the extension four-connecting-rod inner crystalline apparatus, the crystalline apparatus can be reused, a large amount of the crystalline apparatuses can be economized, the cost is reduced, and the production efficiency is improved.

Description

Extension four-connecting-rod inner crystalline apparatus

The utility model belongs to metallurgical machinery, particularly relates to a kind of hollow ingot casting equipment.

The development of modern industry production is very large to the needs of hollow blank.Various rims, gear ring, high-pressure bottle housing, boiler shell, paper machine cylinder, extrusion tube blank, gun barrel, roll extrusion pipe all need hollow blank.Producing hollow ingot at present both at home and abroad can be divided into following several: 1, traditional processing method, usually dash or form with solid bar machining with solid steel ingot heat, this processing method is occupied a large amount of hot and cold processing equipment, using rate of metal is low, so the cost costliness.2, welding, with raw material welding lopping ring, but uniformity is difficult to guarantee beyond the plumb joint.3, centre spinning: the inner surface of the pipe that this method is produced is a Free Surface, and is very coarse usually.4, electroslag remelting method: the hollow ingot that this method is produced is of high quality, and the metal that the main problem that exists is a drippage makes the stamen rod in the blank cavity stuck.

Generally the simplest way is to adopt the stamen rod at present, and equipment is simple, need not stripping, and shortcoming is to use non-outer metal stamen rod, hollow ingot is polluted, use water-cooled metal stamen rod, after the hollow ingot cooling, the stamen rod is difficult to find time, hollow ingot of every manufacturing must be through losing a stamen pipe, and is very uneconomical.The seventies is according to " the large-scale metal manufacturing with the exploitation of hollow bloom " in Japanese metal plate field etc., the 66th year (1980) No. 2 reports of iron and steel propose a kind of compound interior stamen and produce the hollow ingot method, the body of can ventilating in the stamen in compound cools off, as shown in Figure 3,20 refrigerating gases wherein, 21 heat insulation layers, 22 molten steel, 23 overcoats, 24 refractory materials, cover in 25,26 cooling tubes, 27 moulds, 28 chassis, this way is produced hollow ingot, though it is different with the traditional method of watering technology, take compound interior stamen, needn't cause hollow ingot of every production, must lose a stamen pipe, can save a large amount of stamen rods, but exist many shortcomings, particularly compound interior stamen is difficult to extract out.

Stamen is easy to extract out behind moulding by casting goal of the invention of the present utility model in the hollow ingot in order to make, design a kind of internal crystallizer with extensible quadric crank mechanism, utilize quadric chain that intercrystalline is inwardly shunk behind the hollow ingot moulding by casting, the external diameter of round intercrystalline is diminished, be easy to from hollow ingot, extract out.

The concrete scheme of the utility model is to realize like this, at least by the two curved axial symmetry interior crystallizer piece of outer wall and two alternate garden tubbiness interior crystallizers of forming of the curved wedge shape interior crystallizer of outer wall piece independently independently, the outer wall of wedge shape interior crystallizer piece is less than its inwall, the two side of wedge shape interior crystallizer piece contacts with the two side of adjacent two arc interior crystallizer pieces respectively, each interior crystallizer piece is provided with the import and the outlet of cooling medium, be provided with on each the arc interior crystallizer piece of composition garden tubbiness crystallizer and the inwall of wedge shape interior crystallizer piece four connecting rods respectively with the central shaft that is enclosed within this garden tubbiness interior crystallizer on outer tube be connected with inner sleeve, this outer tube and inner sleeve all can move at the central shaft outer surface.Wedge shape interior crystallizer piece links to each other with inner sleeve by four connecting rods, and the intercrystalline of annular links to each other by the inwall of four connecting rods and outer tube.When central shaft moves up, driving wedge shape interior crystallizer piece by four connecting rods inwardly shrinks, inwardly shrink by the conical surface of four connecting rods drive annular intercrystalline simultaneously along wedge shape intercrystalline piece, the interior crystallizer periphery of whole annular is diminished, be easy to make interior crystallizer from hollow ingot, to extract out.

Be further described below in conjunction with accompanying drawing.

Fig. 1 is the schematic diagram of scalable interior crystallizer.

Fig. 2 is the generalized section of scalable interior crystallizer.

Fig. 3 is the schematic diagram of compound interior stamen crystallizer.

Among the figure: 1, annular interior crystallizer piece, 2, wedge shape intercrystalline piece, 3, hook, 4, transverse slat, 5, cross bar, 6, crotch, 7, cone, 8, inner sleeve pin, 9 sliding awl pieces, 10, outer tube, 11, inner sleeve, 12, central shaft, 13, annular interior crystallizer four connecting rods, 14, wedge shape intercrystalline piece four connecting rods, 15, inverted orientation four connecting rods, 16, vertical columns, 17, pallet, 18 basic platforms, 19, depression bar.

After the cooling of hollow ingot moulding by casting, to from hollow ingot, promote taking-up to interior crystallizer, cut off the cooling water pipe of each interior crystallizer piece, depression bar 19 is broken away from, suspension hook 3 falls, bottom crotch 6 glides along cone 7, hook the lower edge of cone 7, mention again suspension hook 3, crotch 6 hooks cone 7 and upwards promotes, and drives outer tube and rises, owing on the inner sleeve inner sleeve pin 8 is set, and in the hole of opening on the sleeve pipe 10 that extends, herewith, outer tube 10 rises and drives inner sleeve 11 and rises, and outer tube 10 risings drive wedge shape ingot 2 by its four connecting rod 14 and inwardly shrink, inner sleeve 11 rises under the drive of outer tube 10, and the conical surface that drives the junction surface of annular interior crystallizer edge and wedge shape interior crystallizer piece 2 by its four connecting rod 13 inwardly shrinks with one heart. When suspension hook 3 continuation risings make the periphery of whole interior crystallizer dwindle and rise at an easy rate with suspension hook 3 outside of hollow ingot. In the time will pouring into a mould hollow ingot, whole interior crystallizer is sling and put on the basic platform 18 of hollow ingot mould, and suspension hook 3 is fallen, make on the borehole jack posture in standing (qigong) post 16 on the pallet 17 of center-pole 12, suspension hook 3 continues to fall, and crotch 6 moves down, sliding cone piece slides to lower cone 9 times, this moment, suspension hook 3 rose again, and frictionally drives sliding cone piece 9 and rises (weight of sliding cone piece 9 is lighter), until insert the lower space of cone 7, suspension hook 3 continues to rise, crotch 6 stresses on the lower conical surface of cone piece 9, because the relation on inclined-plane, crotch 6 breaks away from cone 7 and sliding cone piece 9, suspension hook 3 continues to rise, and cross bar 5 band motion plates 4 also drive central shaft 12 risings. Because the lower end of central shaft 12 connects two reverse connecting rods 15, its length equates that with four connecting rods 13 after centre of location axle 12 risings for crystallizer, it is overhanging along central shaft 12 to drive inverted orientation four connecting rods 15, outer Sleeve pipe 10 glides with inner sleeve 11, and it is overhanging to drive simultaneously all connecting rods, thereby it is overhanging to drive all crystallizer pieces, and overhanging and overhanging termination when mutually being close to compresses depression bar 19 and connects cooling water pipe and just can prepare melting when all crystallizer pieces. After melting finishes, repeat again to promote the crystallizer operation process.

Use internal crystallizer with extensible quadric crank mechanism, after the hollow ingot cooling, interior crystallizer can shrink by the four-bar linkage structure limit, the limit proposes from hollow ingot, can produce high-quality various hollow ingot, interior crystallizer is proposed from hollow ingot easily, can save again a large amount of intercrystalline materials, thereby greatly improve productivity effect.

As most preferred embodiment, interior crystallizer is by three identical annular interior crystallizer pieces and three alternate annular interior crystallizers that are combined into of identical wedge shape interior crystallizer piece, interior crystallizer adopts steel to make, and the import and export of logical cooling water are all arranged on every interior crystallizer.The tapering of wedge shape interior crystallizer is greater than 17 degree, general angle of taper can adopt about 30 degree to best, four connecting rods adopt parallelogram four connecting rod forms, 6 four connecting rods 13 and 6 four connecting rod 14 equal in length, guarantee synchronous, in order to make between outer tube 10 and the middle sleeve 11 relative motion little, connecting rod 13 and 14 length and angle must be mated.

As another kind of embodiment, in fusion process, because the contraction of steel ingot is inwardly shunk interior crystallizer, but asynchronous, the amount of contraction of wedge shape interior crystallizer piece is greater than the amount of contraction of the device piece of arc intercrystalline, and wedge shape interior crystallizer piece slides at the interface that contacts with arc interior crystallizer piece.So wedge shape interior crystallizer piece will protrude the outer surface at whole circular arc interior crystallizer, to prevent that molten steel from flowing in the recessed joint, can stuck whole interior crystallizer after the hollow ingot cooled and solidified, thus interior crystallizer can inwardly be shunk, so that from hollow ingot, propose smoothly.

Claims (2)

1, a kind of internal crystallizer with extensible quadric crank mechanism, it is characterized in that at least by the two curved axial symmetry interior crystallizer piece of outer wall and two curved alternate garden tubbiness interior crystallizers of forming of wedge shape interior crystallizer piece of outer wall independently independently, the outer wall of wedge shape interior crystallizer piece is less than its inwall, the two side of wedge shape interior crystallizer piece contacts with the two side of adjacent two curved mould pieces respectively, each intercrystalline piece is provided with the import and the outlet of cooling medium, be provided with on each the arc interior crystallizer piece of composition garden tubbiness crystallizer and the inwall of wedge shape interior crystallizer piece four connecting rods respectively with the central shaft that is enclosed within this garden tubbiness interior crystallizer on outer tube be connected with inner sleeve, this outer tube and inner sleeve all can move at the central shaft outer surface.

2, interior crystallizer according to claim 1, it is characterized in that by three equal garden annular crystallizer pieces and three alternate garden tubbiness interior crystallizers of forming of equal wedge shape interior crystallizer piece the outer diameter of wedge shape interior crystallizer piece also protrudes outside the outer wall of the garden tubbiness interior crystallizer of being formed less than its inner diameter.

Images