RU2058851C1 - Smelt metal casting aggregate - Google Patents

Abstract

FIELD: metallurgy. SUBSTANCE: aggregate allows without usage of shop gantry crane to exercise smelt metal casting from both open and closed casting ladles. Aggregate has ladle with pivots, traverse, supporting apparatus with basket, levers system and drive. Ladle is set in basket so, that its pivots entered slant grooves on sides. To cast metal they switch drive. Levers system lifts basket with ladle up into upper position by rotating them around stop. After discharge drive is switched off and ladle goes back to its initial position under action of its own weight. EFFECT: aggregate allows to exercise smelt metal discharge from closed or open ladles without shop gantry crane usage. 2 dwg

Description

 The invention relates to metallurgy and can be used for pouring liquid metal from a ladle.

 At present, domestic aluminum smelters use buckets equipped with a device for tipping the bucket in the form of a gearbox with an electric motor and a manual drive for pouring liquid aluminum into the mixer. The design was developed by the Irkutsk Aluminum Plant (see drawing N 122, 1963).

 The disadvantage of this technical solution is that a portal crane is necessarily involved in the process of metal overflow. Another disadvantage is that the rotation mechanism is mounted on a bucket.

 Another drawback is that when overflowing, you have to raise the bucket to a high height, otherwise the metal stream does not get into the mixer pocket, and this leads to spraying and intensive oxidation of it from contact with air.

 In addition, the tipping device (engine, gearbox) mounted on the bucket works in high temperature conditions and therefore often fails.

 Closest to the proposed is a device containing a bucket, equipped with two pairs of pins, which before casting is installed on a support platform made obliquely in the direction of the stop attached to the frame or wall of the receiving tank, such as a mixer.

 In this case, the supporting element in the form of a bracket with a latch attached to the bucket comes into contact with the stop. Then the traverse in the form of two rods with a hook grip is put into meshing with the upper pair of trunnions to the lower one and a ladle is lifted by a crane to drain the metal into the receiving tank.

 The known solution does not require a tipping mechanism on the bucket, but does not exclude the use of a crane.

 In addition, this design is designed only for special buckets of transport container thermoses equipped with a lid with a drain toe. Each bucket should have an additional pair of pins and brackets with a lock.

 The aim of the invention is to eliminate the use of a gantry crane when pouring metal into a receiving tank from both closed and open buckets.

 The goal is achieved in that the complex for casting liquid metal, containing a transport bucket, equipped with a pair of pins and a lifting beam, a support device and an emphasis, an emphasis is made in the form of a hinge mounted on two racks, to which the basket is fixedly suspended in the form of pivoting cheeks equipped with in the upper part, with a groove under the pin of the bucket, and in the lower part, pushers pivotally attached to them, movably through an axis connected to the connecting rod, pivotally attached to the supporting device, and with a return drive plunger but-translational movement, pivotally mounted on the basis of the reference device.

 The essence of the proposed complex lies in the fact that the bucket with liquid metal delivered to the mixer, for example with a portal crane, is mounted with pins in the slanting grooves of the cheeks. In the next metal overflow operation, the crane is not involved. This operation is performed by the proposed device in the form of a drive with a system of levers at any convenient time. In this case, the metal merges into the mixer pocket without lifting the bucket to a high height, i.e. during overflow intense oxidation of the metal is not observed.

 Common signs of the proposed complex and prototype is the presence of a stop fixed on the frame or wall of the receiving tank. The difference from the prototype is that the frame (support device) is equipped with a basket in the form of a pair of cheeks with an oblique groove under the bucket pivots articulated with a stop and a drive through pushers and two connecting rods. This difference allows you to exclude the use of a crane from the overflow operation of both open and closed buckets. The known design provides for the mandatory use of a crane and only closed buckets. Therefore, this proposal meets the criteria of the invention of "Novelty."

 A device for turning the bucket (a.s. N 880627, class B 22 D 41/06, 1979) is known. This device does not require the use of a shop gantry crane to perform the overflow operation, since it has its own autonomous portal mounted on a monorail trolley. The portal is equipped with a device for turning the bucket in the form of a gearbox with an electric motor.

 A disadvantage of the known design is the presence of a complex gearbox consisting of a worm, gears and a cam clutch, as well as an electric motor. The proposed bucket rotation design has a simpler link mechanism and a simpler drive in the form of a pneumatic or hydraulic cylinder. Therefore, this proposal meets the current level of technology.

 Figure 1 shows the tipper in the initial position of the bucket before pouring; figure 2 is the same at the time of pouring.

 The complex contains a transport bucket 1, equipped with a pair of pins 2 and a lifting beam 3, as well as an opron device 4 and an emphasis. The emphasis is made in the form of a support device 4 of a hinge 6 mounted on two racks 5, to which a basket is suspended in the form of a pair of pivoting cheeks 7, provided in the upper part with an oblique groove 8 under the pins 2 of the bucket 1, and in the lower part pushers 9 pivotally attached to them. The pushers 9 are movably through the axis 10 connected with the connecting rod 11, the hinge 12 attached to the supporting device 4 and with the plunger 13 of the actuator 14 of the reciprocating movement mounted in the bearings 15 with the possibility of rotation on the basis of the supporting device 4.

 The device operates as follows.

 The bucket 1, delivered, for example, by a gantry crane, is installed in the basket so that the pins 2 of the bucket 1 enter the oblique groove 8 of each cheek 7.

 To perform a metal overflow operation, a drive 14 is turned on in a receiving container (not shown), while the free end of the connecting rod 11 starts to rotate clockwise relative to the hinge 12. At the same time, the pusher 9 lifts the basket with the bucket 1 to an upper position around the stop. After draining the metal, the bucket is returned to its original position under the action of its own weight by turning off the drive.

 Thus, the operation of overflowing metal from an open or closed bucket is performed without the participation of a gantry crane with a simple and reliable mechanism with the lowest possible height, which ensures the least loss from metal oxidation by air.

Claims (1)

 COMPLEX FOR Pouring LIQUID METAL, comprising a transport bucket having a pair of pins and a lifting beam, a support device and a stop, characterized in that the support device is a base and two racks, the stop is made in the form of a hinge mounted on two racks, the complex equipped with a pair of pivoting cheeks suspended from a hinge and having an oblique groove under the bucket pins, pushers pivotally attached to the bottom of the cheeks, a connecting rod pivotally attached to the supporting device, and a return drive but-translational movement having a plunger, mounted in a bearing pivotally on the basis of the reference device, wherein the pushers are movably connected to the axle by means of a rod and a plunger.

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