CN2401294Y - Slide runner - Google Patents

Abstract

The utility model relates to a slide runner for a bakie for casting steel, particularly a slide runner for a bakie for casting steel with a small caliber. The utility model has the technical scheme that an upper runner which is in a shape of a round table and is positioned in a corresponding opening of a pedestal is tightly contacted with a lower runner which is in a shape of a round table and is positioned in a corresponding opening of a sliding plate directly, and the lower runner is provided with a plurality of water outlets. The utility model has the advantages that the length of a runner passage can be effectively shortened, the service life of the bakie is prolonged, etc.

Description

Slide gate nozzle

The slide gate nozzle of used tundish when the utility model relates to a kind of cast steel, the slide gate nozzle of used tundish when relating in particular to a kind of small-bore cast steel.

At present in the steel and iron industry of China, used slide gate nozzle exists following shortcoming during small-bore cast steel: be provided with sliding plate brick between the mouth of a river up and down, the length that this has increased whole exhalant canal has prolonged the time that molten steel flows out, and has caused the exhalant canal mouth to tie the technical barrier of steel plug-hole easily; The following mouth of a river has only an apopore, owing to be at high temperature to work, its life-span has only 6-7 hour, reach after the life-span and must change, and whole tundish must be opened when changing, this has just caused also be shortened the service life of tundish, the residue molten steel also can be wasted in the ladle simultaneously, because change the complicated operation of tundish, delay many times again, reduced production efficiency; What the locking device of existing slide gate nozzle used is rigidity or elastic construction, both all have the very big coupling mechanism force of appearance when hot tension is excessive, make and manually be difficult to drive, and the problem that must adopt hydraulic means to drive, but itself breaks down hydraulic means again easily, thereby has increased the danger of operation.

The purpose of this utility model provides a kind of slide gate nozzle, it is had can effectively shorten exhalant canal length, prolongs advantages such as tundish service life.

The utility model is achieved by the following technical solution: the mouth of a river directly closely contacts under the truncated cone-shaped filling pipe end that is arranged in the base respective openings and the truncated cone-shaped that is arranged in the slide plate respective openings; The following mouth of a river is provided with a plurality of apopores.

For prolonging tundish service life better, having 3 apopores on the mouth of a river down, they are in line evenly distributed along the moving direction of slide plate, the interval of adjacent apopore is greater than the radial dimension of apopore, each apopore all can be corresponding with the apopore position of filling pipe end, and each apopore on the following mouth of a river all has calibration sleeve.

The utility model is in order further to solve the shortcoming that prior art exists, slide gate nozzle still can manually be driven when being locked, be provided with a cavity at base one end, in guide shaft is arranged, spring is housed on it, pull bar one end is fixed on the base on cavity right side, the other end is installed second lever, just lock screw and bullet lock screw are installed on second lever, and just locked the left side of screw at bullet lock screw, it is corresponding with base that the distance between them should be able to guarantee just to have locked screw, and bullet lock screw can be corresponding with guide shaft, just leave the slit between lock screw and base simultaneously, bullet lock screw contacts with guide shaft.

The utility model reduces the thickness of slide gate nozzle owing to cancelled the sliding plate brick between the mouth of a river up and down, has effectively shortened exhalant canal length, and solves a difficult problem of finishing the steel plug-hole; Owing to down on the mouth of a river a plurality of apopores are being set, by the adjusting position relation apopore is worked successively, thereby prolonged tundish service life, reduced the molten steel loss, improved tapping efficient.The utility model also has another advantage in addition, promptly adopted elasticity locking, the structure of rigidity gap locking, make slide gate nozzle alternation under rigidity elasticity locking state, overcome under bigger coupling mechanism force, slide gate nozzle can not hand-driven shortcoming, thereby can carry out switching to molten steel easily or dam, after having watered steel, can close slide gate nozzle, the security that has further improved equipment simply.

Accompanying drawing 1 is the slide gate nozzle structural representation.

Accompanying drawing 2 is the A-A cutaway view of accompanying drawing 1.

1-first lever wherein, 2-rocking bar, 3-connecting rod, 4-slide plate, the mouth of a river under the 5-, 6-calibration sleeve, the 7-sliding pallet, 8-filling pipe end, 9-base, 10-ladle, 11-spring, 12-guide shaft, 13-has just locked screw, 14-bullet lock screw, 15-second lever, 16-pull bar, 17-support plate, 18-eyelet bolt.

Below in conjunction with accompanying drawing and embodiment the utility model is further described.

First lever 1 is fixedlyed connected with rocking bar 2 among Fig. 1, rocking bar 2 one ends are fixed on the base 9, the other end links to each other with connecting rod 3, the other end of connecting rod 3 is connecting slide block 4, on slide block 4, leave and the following mouth of a river 5 corresponding openings, 5 tops, the following mouth of a river are filling pipe end 8, it is arranged in the respective openings of base 9, the mouth of a river closely contacts up and down, between do not establish any sliding plate brick, down also having 3 apopores on the mouth of a river 5, they are in line evenly distributed along slide plate 4 moving directions, and the distance between adjacent apopore is greater than the apopore radial dimension, and each apopore all can be corresponding with the apopore of filling pipe end 8, is provided with calibration sleeve 6 around each apopore at the following mouth of a river 5.Pull bar 16 1 ends are fixed on the base 9 among Fig. 2, and the other end is connected with second lever 15, and the long end of second lever 15 has two screws, and firm lock screw 13 and bullet lock screw 14 is housed respectively, and short end is pressed on the support plate 17, and support plate 17 another sides are pressed on the sliding pallet 7.Just lock screw 13 is positioned at the left side of bullet lock screw 14, it is corresponding with base 9 that distance between them should be able to guarantee just to have locked screw 13, bullet lock screw 14 can be corresponding in guide shaft 12, and just locked 9 of screw 13 and bases and left the space that is less than or equal to 0.1mm, bullet lock screw then contacts with guide shaft 12, guide shaft 12 pressing springs 11, the both is arranged in a cavity of base 9, and this empty cavity position is corresponding with the position of bullet lock screw.Connecting eyelet bolt 18 at sliding pallet 7 with a relative end of support plate 17 contact jaws.

The utility model use is as follows: drive first lever 1, it will be by rocking bar 2 drivening rods 3 and slide plate 4 horizontal movements, thereby but make down the mouth of a river 5 horizontal reciprocating movements.Regulating displacement can make the apopore corresponding relation at the filling pipe end 8 and the following mouth of a river change, two hole complete matchings up and down can appear, the pent situation of the apopore of section aligned or filling pipe end 8, thereby the switching or the throttling of control molten steel, closing organ rapidly also after having watered steel.Instantly after the mouth of a river 5 apopore reached the life-span, the driving by first lever 1 can change another apopore easily into and work on.For can operate as normal, slide gate nozzle must be locked, can lock screw 14 by the precession bullet this moment, make it compress springs 11 to reach the elastic force of designing requirement by guide shaft 12, promptly manually can drive the elastic force of first lever 1, owing to be subjected to the effect of reaction force, second lever 15 is that fulcrum is pushed down support plate 17 with pull bar 16, thereby will be sliding pallet 7 lockings of fulcrum with eyelet bolt 18, making up and down, plane, the mouth of a river produces the coupling mechanism force that meets design requirement.Adjust steel lock screw 13 again, and leave the slit that is equal to or less than 0.1mm in the corresponding position of itself and base 9, mechanism has promptly finished the locking requirement.Under normal circumstances, in-house temperature is higher than external temperature, thereby produces the hot tension of the heat of slides within assembly greater than the external locking assembly, and it makes second lever, 15 reverse compression springs 11, is subjected to the reaction force of spring and produces coupling mechanism force.Owing to adopted the structure of elasticity locking and the locking of rigidity preset clearance, make elastic locking device absorb this hot tension by regulating two screws, interspacing in advance of rigid mount also can absorb this mechanically deform error simultaneously, make mechanism keep the state of elasticity locking, because the rigid locking device is arranged as safeties, can make the elasticity coupling mechanism force less, driving moment still remains in the hand-driven scope; Make hot tension excessive just in case break down, mechanism can convert rigidity locking work automatically to, can produce bigger rigidity coupling mechanism force this moment, manually be difficult to drive, but because elasticity locking is still in running order, therefore suitably regulate lock screw just, the driving moment of mechanism is remained in the scope of hand drive.Need only partly outward winding when replacing with down the mouth of a river as needs and just lock screw 13 and bullet lock screw 14 extraction support plates 17, sliding pallet 7 just can and be opened slide gate nozzle so that replace with down the mouth of a river easily with eyelet bolt 18 rotations.

Claims (3)

1, slide gate nozzle, it comprises base (9), sliding pallet (7), the filling pipe end (8) and the following mouth of a river (5) is characterized in that: the mouth of a river (5) directly closely contacts under the truncated cone-shaped filling pipe end (8) that is arranged in base (9) respective openings and the truncated cone-shaped that is arranged in slide plate (4) respective openings; The following mouth of a river (5) is provided with a plurality of apopores.

2, slide gate nozzle according to claim 1, it is characterized in that: have 3 apopores on the following mouth of a river (5), they are in line evenly distributed along the moving direction of slide plate (4), the interval of adjacent apopore is greater than the radial dimension of apopore, each apopore all can be corresponding with the apopore position of filling pipe end (8), and each apopore on the following mouth of a river (5) all has calibration sleeve (6).

3, slide gate nozzle according to claim 1, it is characterized in that: base (9) one ends are provided with a cavity, in guide shaft (12) is arranged, spring (11) is housed on it, pull bar (16) one ends are fixed on the base (9) on cavity right side, the other end is installed second lever (15), go up installation just lock screw (13) and bullet lock screw (14) at second lever (15), and just locked the left side of screw (13) at bullet lock screw (14), it is corresponding with base (9) that distance between them should be able to guarantee just to have locked screw (13), bullet lock screw (14) can be corresponding with guide shaft (12), just leave the slit between lock screw (13) and base (9) simultaneously, bullet lock screw (14) contacts with guide shaft (12).

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