SU1404165A1 - Hoisting and slewing stand for steel-casting ladles of continuous casting machine - Google Patents

Abstract

This invention relates to metallurgical engineering and concerns the design of continuous casting machines. The goal is to increase the reliability of work. The lifting-swiveling stand contains a swiveling housing with a mechanism for raising steel casting ladles, made in the form of a spatial four-link with upper and lower parallel links, at the ends of which a vertical plane of symmetry of the traverse for the casting ladles mounted on the swinging cylinder mounted on the swinging body is hinged. . The latter is equipped with a balance bar, at the ends of which the upper links are pivotally fixed, and the axis of rotation is vertical and located in the vertical plane of symmetry of the traverse for the steel-teeming ladles. 5 il. with S (L

Description

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The invention relates to metallurgy, in particular to continuous casting machines.

The purpose of the invention is to increase the reliability of work.

FIG. Figure 1 shows the kinematic scheme for raising a new bench; in fig. 2 - tilt-up stand, ob-: sh, iy view; in fig. 3 - the same, top view; in fig. 4 - the same section along the axis of the column; in fig. 5 shows section A-A in FIG. 4.: The lifting and turning stand contains a column I, installed in two radial I bearings 2 and 3 and a thrust bearing 4 i in the support body 5, with which the stand is fixed — 1 is fixed on metal structures 6 of the machine — not 5 long rows 1. discontinuous casting. On the stand there is a stacking ladle 7, under which the intermediate ladle 8 and the mold 9 of the continuous metal casting machine are installed.

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and with the aid of an electric motor 28, through a gearbox 27 and a gear pair, a transfer is made from the backup position to the working position. After preparing the shutter of the casting ladle for operation by the plunger 18, the casting ladle is moved to the desired height position. After that, the liquid metal is fed into the intermediate ladle 8, pouring the liquid metal into the mold 9.

The raising and lowering of the steel teeming ladle takes place with flat vertical stirring; crosshead 19, turning of the upper 10 and lower 11 links, as well as turning the horizontal part of the upper body 15 relative to co-design in a horizontal plane with an equal number of upper and lower link joints and uniform load all its hinges, regardless of the accuracy of manufacture, as well as the stand lifting mechanism is made in the same manner as temperature deformations

I of a spatial four-link with I top links 10 and lower links - I mi 11, parallel to each other, while I this top line 10 does not have fixation I one relative to another. The lower links I 11 have a rigid connection 12. I The swiveling body is mounted on column 1 and is made of two parts. The lower part 13 is fixed with a key 14, and the upper part 15 is installed with the possibility of rotation. The cover 16 serves for axial fixation.

 The housing of the hydraulic cylinder 17 is mounted on the bracket of the lower part 13 of the rotary body. Plunger 18 is connected to crosshead 19,: on which a steel teeming ladder is installed; bucket 7. Stroke stroke 20 of the plunger corresponds to the lifting height of the crosspiece 19 together with the steel casting ladle 7 installed on it.

The links 10 and 11 are connected with parts 13, 15 of the rotary body and with the crosspiece 19 spherical hinges consisting of axes 21, spherical sleeves 22 and clamps 23. The axes 21 with their square trunnions are fixed in parts 13 and 15 of the rotary body and in traverse 19 with clips 23.

In the middle part, a gear wheel 24 is fixed on the column 1, fixed on the column 1 by the key 25 and meshes with the gear 26, which is part of the gear reducer 27, flanged to the housing 5 and connected to the electric motor 28.

The stand works as follows. The pouring ladle is installed on the yoke 19 in the raised position

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and with the aid of an electric motor 28, through a gearbox 27 and a gear pair, a transfer is made from the backup position to the working position. After preparing the shutter of the casting ladle for operation by the plunger 18, the casting ladle is moved to the desired height position. After that, the liquid metal is fed into the intermediate ladle 8, pouring the liquid metal into the mold 9.

The raising and lowering of the steel-teeming ladle takes place with flat vertical stirring; crosshead 19, turns of the upper 10 and lower 11 links, as well as when turning in the horizontal plane of the upper part 15 of the body relative to column 1.

The design has a scheme with an equal number of hinges of the upper and lower links and a uniform load of all its hinges, regardless of the manufacturing accuracy, as well as temperature deformations in the process.

All the work and provides equal load of all the hinges of the spatial four-door:

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where A is the horizontal distance from the vector of half the weight of the casting ladle P to the force vector of the lift cylinder Q; B is the vertical distance between the hinges of the upper and lower links. The design of the stand has high reliability indicators in operation, due to the high resistance of the bearings of the links due to the uniformity of their loading and more optimal lubrication conditions.

Claims (1)

Invention Formula Lifting-swivel stepd of steel-casting buckets of a continuous casting machine, containing a swivel body, rigidly connected in its lower part with a vertical shaft, traverses for steel-teeming knives, connected by two pairs of parallel connecting links with the upper and lower parts of the swiveling body, and traverse lifting hydraulic drives mounted on the rotary body in its lower part and connected to the traverses in their upper parts, characterized in that, in order to increase the reliability of operation, the rotary body is made It consists of two parts, the upper part of which is mounted freely on the vertical shaft and connected with the upper parallel connecting links. 25 Fi.4 Feed  JO