SU404548A1 - - Google Patents

Description

The invention relates to the construction of a continuous metal casting machine.

It is known that the correct device of the continuous casting machine contains drive rolls mounted in fixed pillows and in pillows moved by hydraulic cylinders in the grooves of the bed.

At the same time, despite the implementation of pillows with flanges, they can be skewed, leading to a skewing roll. In case of cantilever rim, orerekos rolls are especially likely due to asymmetry of external loads on them.

The purpose of the invention is the elimination of roll skews when mixing and diluting them.

For this, each of the upper, pushed by the hydraulic cylinders of the pillows is hingedly connected with two parallel links, forming together with them a hinged four-link and having the possibility of moving parallel to the plane passing through the axes of the upper and lower rolls.

In fig. 1 shows a wireline device with a cantilevered arrangement of rolls, general view; in fig. 2 is a section along the AL in FIG. one; in fig. 3 - tnusche-correct device with double-support rollers, general view; in fig. 4 shows a section along the line B – B of FIG. 3; in fig. 5 is a section through 5 - B of FIG. 3

The N-correct device contains

driving lower console rollers U mounted on sub-support supports in supports 2 fixedly fixed, for example with studs 3, in the grooves of bed 4. Top rolls 5 are mounted in iodushki 6, each of which is hingedly attached to two parallel links 7 that are hinge-leaning the other ends of the PA rack 8 lower pillows 2. The cylinders 9, mounted in the upper part of the frame 4, serve to move the pillows of the upper rolls.

In the double-support version, the lower rolls 10 are mounted in the bed //, and the cushions 12 of the upper rolls 13 are fixed pivotally on links 14, which by their other ends are also pivotally attached to the bed 11. Due to the fact that during the “hydraulic cylinders 15, each the cushion is slightly displaced along the axis of the roll, it is necessary to allow axial movement of the bearing support or the bearing 16 itself, i.e., to install it non-fixed in the axial direction along the upper ring, as shown. 5. It is possible to construct where there is no such displacement, i.e. the links of one of the pillows are rotated 180 ° with the arrangement of the pillows of one roll asymmetrical relative to the axis of casting.

The device works as follows.

Before the start of casting, the upper rolls are raised. When the seed is fed into the zone of the lower-right device, the hydraulic cylinders move down and move the upper cushions in the slots of the frame, clamping the seed. The plane-parallel movement of the pillows is ensured by the fact that each of them, together with two parallel links, forms a four-link unit. Drives are turned on (not shown) connected to the rollers by couplings or spindles 17. A seed is fed to the crystallizer before casting. In the process of casting, when the ingot reaches the zone of the nonsheating device, its further drawing is carried out by its direct contact with the rollers of the device. Slontok is simultaneously pulled out by the government. Since the dog feet are embedded in the slots of the frame, the axial force in the direction of the moving ingot is perceived by the intermediate legs 18 of the frame.

The proposed device can significantly reduce the roll pitch while maintaining the hinge attachment of the pillows. The device is also applicable for vertical weirs. In this case, the plane of movement of each four-link is horizontal.

Subject invention

The T-proper device of the machine for continuous metal pouring, containing drive rolls mounted in fixed lower and upper pressing cushions, is characterized in that, in order to prevent rolls from tilting during their mixing and dilution, 15 each of the upper pressing pads of the hinge two parallel links forming together with them a hinged four-link and having the possibility of moving parallel to a plane passing through the axes of the upper and lower rolls.