A kind of middle water containing opening positioner
Technical field
The utility model relates to metallurgical device, and particularly, the utility model relates to a kind of for the middle water containing opening positioner of the middle water containing opening on the conticaster accurately being located usefulness.
Background technology
Iron and steel metallurgical industry, the mode of high-temperature molten steel solidification forming has die casting (high-temperature molten steel is watered into steel ingot, be processed into steel billet through blooming mill or forging press) and continuous casting (high-temperature molten steel is directly watered into continuous casting steel billet) dual mode, implements the continuous casting mode, can improve recovery rate of iron, reduce production costs.
Conticaster is a kind of liquid molten steel directly to be watered into the machine of solid-state steel billet, and capital equipment comprises parts such as ladle, steel ladle rotary table, tundish, stopper mechanism, crystallizer, bobbing machine, secondary spraying device, straightening machine, dummy bar, cutting equipment, knockout mechanism, water-cooled live-roller.
Molten steel is housed in the tundish, and there are a plurality of outlets the below, can be to inject molten steel in a plurality of crystallizers simultaneously by outlet, is finished the cooling forming of molten steel by crystallizer.Molten steel in the tundish is subjected to the oxidation of air injecting the crystallizer process; middle water containing opening (a kind of tubular object of being made by alumina-carbon material) is installed below tundish; for the protection of molten steel; and for molten steel injection crystallizer provides water conservancy diversion, molten steel is injected in the crystallizer along the position of middle water containing opening.
In order to ensure the uniformity that molten steel distributes, require the middle water containing opening installation site to want accurately in order to reach this purpose, the middle water containing opening positioner to be set all generally.Consult Fig. 1, existing technology is: at the shelf that middle water containing opening is installed positioner is set, described positioner is tubular or column, and the distance between the described positioner preestablishes according to the position of crystallizer.
In addition, described middle water containing opening is tubular object, when positioner is tubular, middle water containing opening is mounted in the cylindrical shell can determines the position.When positioner is column, middle water containing opening is inserted in the cylinder also can determines the position.
Theoretically, described this positioner can be guaranteed the positional precision of middle water containing opening, but is difficult to accomplish in actual mechanical process.This is because tundish self weighs tens tons, in the lifting process, always shake, if if tubular or column positioner contact words very closely with middle water containing opening, then the powerful inertia in tundish lifting process can make middle water containing opening fracture.So when practice, general all can do big of cylindrical shell or cylinder do littler; Perhaps make positioner below middle water containing opening, make middle water containing opening in the lifting process, can not run into positioner.Yet, because the increase of gap value, thereby often cause the decline of middle water containing opening positioning accuracy easily.
The utility model content
For improving the positioning accuracy of middle water containing opening, it is a kind of for the middle water containing opening positioner of the middle water containing opening on the conticaster accurately being located usefulness that the utility model provides.
A kind of middle water containing opening positioner of the utility model technical scheme is as follows:
A kind of middle water containing opening positioner 5 comprises base 51, clamping device 52 and push pedal 53 3 big building blocks, has a waist typed through hole 511 on the staving surface of base 51, and described waist typed through hole 511 is parallel to base 51 bottom surfaces, it is characterized in that,
In the inside of base 51 circular slab 512 is arranged, circular slab 512 is welded in the bucket, and 3 pins 513 are arranged on the circular slab, has through hole 514 on the circular slab 512 simultaneously, and the size of through hole 514 is greater than the diameter of middle water containing opening.
According to a kind of middle water containing opening positioner of the utility model, it is characterized in that on base 51, near the circular slab place 3 straight pins 515 being arranged.
According to a kind of middle water containing opening positioner of the utility model, it is characterized in that described clamping device 52 has 3 identical portable plates 521, circular port 522 and straight pin 523 are arranged on the portable plate 521, a face of portable plate 52 is circular arc type 523.
According to a kind of middle water containing opening positioner of the utility model, it is characterized in that, have 3 waist typed through hole 531 and a manhole 532 in the push pedal 53.
According to a kind of middle water containing opening positioner of the utility model, it is characterized in that one handle 533 is arranged in the push pedal 53.
According to a kind of middle water containing opening positioner of the utility model, have following advantage:
(1) improve middle water containing opening positioning accuracy be installed,
(2) simple in structure, easily manufactured, simplify the operation.
Description of drawings
Fig. 1 is existing middle water containing opening positioner schematic diagram.
Fig. 2 A is middle water containing opening positioner schematic diagram of the present utility model.
Fig. 2 B, C are respectively middle water containing opening positioner A-A of the present utility model and B-B place cutaway view.
Fig. 3 A, B, C are respectively base 5, clamping device and the push pedal schematic diagrames of middle water containing opening positioner of the present utility model.
Fig. 4 A, B are respectively that middle water containing opening positioner of the present utility model is rotated counterclockwise operation principle schematic diagram when opening.
Fig. 4 C, D are respectively the middle water containing opening positioner of the present utility model operation principle schematic diagrames when tightening up that turns clockwise.
Among the figure, 1 is tundish, and 2 is the tundish shelf, 3 is middle water containing opening, 5 is the middle water containing opening positioner, 51 bases, 52 clamping devices, 53 push pedals, 511 is the waist typed through hole of opening on the staving surface of base 51, and 512 is the circular slab that arranges in the inside of base 51, and 513 is the pin on the circular slab, 514 is the through hole of circular slab 512,515 is that the straight pin 515,52 near the circular slab place is clamping device on base 51, and 521 is portable plate, 522 is the circular port 522 on the portable plate 521,523 is straight pin, and 53 are push pedal, and 531 is waist typed through hole, 532 is manhole, and 533 is handle.
The specific embodiment
Below, the contrast accompanying drawing, embodiment specifies middle water containing opening positioner of the present utility model.
Embodiment
After using middle water containing opening positioner of the present utility model, can be to significantly improving the positioning accuracy of middle water containing opening, complete technical scheme is as follows:
1, the basic composition of novel middle water containing opening positioner and operation principle: see (Fig. 3),
Novel middle water containing opening positioner mainly is made up of base 51, clamping device 52 and push pedal 53 3 big building blocks.
Base 51 is shaped as drum, has a waist typed through hole 511 on the staving surface, and waist typed through hole 511 is parallel to base 51 bottom surfaces; At staving interior welds one circular slab 512, be welded with three pins 513 on the circular slab 512, an end of pin 513 has through hole, and split pin 516 is housed in the through hole.Have through hole 514 on the circular slab 512, the size of through hole 514 is greater than the diameter of middle water containing opening.(near circular slab 512) is welded with three straight pins 515 in base 51 inside.
Clamping device 52 is made up of three identical portable plates 521, and circular port 522 and straight pin 523 are arranged on the portable plate 521, and the medial surface 524 of portable plate 52 is circular arc type.Three portable plate arcwall faces 524 can form a complete circle, and this diameter of a circle is equal to or slightly less than the diameter of middle water containing opening.Hole 522 on the portable plate 521 is placed on the pin 513 that welds on the circular slab 512, and portable plate 512 can rotate around straight pin 513.
Have three waist typed through hole 531 and a manhole 532 in the push pedal 53, also be provided with handle 533.Push pedal 53 is placed in straight pin 515 tops on the base 51, can slide on straight pin 515 surfaces, and the waist-shaped hole 531 in the push pedal 53 simultaneously and the straight pin 523 on the portable plate 521 match.In the waist typed through hole 511 that handle 533 in the push pedal 53 inserts on the base 51, can in the waist-shaped hole 511 of base 51, move.After treating that push pedal 53 installs, construction opening pin in the through hole of pin 513 can not come off push pedal 53.
When turning clockwise handle 533, push pedal 53 also turns clockwise, the straight pin 523 that waist-shaped hole 531 in the push pedal 53 promotes on the portable plate 52, portable plate 52 is also clockwise rotated around the straight pin 513 on the base 51, when portable plate 52 turns clockwise, the arcwall face 524 of portable plate 52 is shrunk to circular aperture, reaches to clamp inner middle water containing opening 3.
After the location work of finishing middle water containing opening 3, counterclockwise driving handle 533, push pedal 53 also is rotated counterclockwise, the straight pin 523 that waist-shaped hole 531 in the push pedal 53 promotes on the portable plate 52, portable plate 52 is also rotated counterclockwise around the straight pin 513 on the base 51, and when portable plate 52 was rotated counterclockwise, the arcwall face 524 of portable plate 52 outwards opened, form a bigger gap, make middle water containing opening 2 leave Shi Buhui together under order with tundish and touch positioner and damage because rocking.