SU1437136A1 - Straightening and pulling section of continuous casting machine - Google Patents

Abstract

The invention relates to continuous casting of metals. The aim of the invention is to improve the reliability of operation. The section consists of a frame in which the driving lower rollers are installed, and the upper rollers are fixed in self-aligning supports fixed on the traverse. The traverse is made of two elements fastened with a hinge. During assembly and operation, the misalignment of the bores and other deviations, including those made by the ingot, are compensated for by the small displacements of the elements of the crosshead. f-ly, 2 ill.

Description

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The invention relates to continuous casting of metals.

The aim of the invention is to increase the hope of working.

Figure 1 shows the section, the airborne services; figure 2 - view And figure 1.

The section consists of frame 1, drive rollers mounted on it

2 (the drive of the rollers is not Yo-Cazan), which is half-complex in the borings of the column bed

311-4, interacting with the columns of the traverse, made in the form of elements 5 and b, connected by a spherical hinge 7 with a center located offset from the plane

axes of columns 3 and 4. On elements 5 and b of the traverse, self-aligning supports of the forming rollers 8 are fixed,.

Section, sleep; Bjei-chervne-vintovy mechanism 9. drive columns and buffer springs 10.

The section works as follows

When assembling the non-parallelism of the axes of the columns, the pesosity of the bores of elements 5 and b of the crosshead, and other deviations of the dimensions of parts and assembly errors of the section are compensated for by small movements of elements 5, b and of the hinge 7 of the crosshead ensuring its assembly without tension -minimal clearances in the guides and the hinge. The curvature of cojioHH 3, 4 and the change in the size of elements 5, 6 and other parts of the section due to their uneven heating or the exertion of an effort from the ingot, as in the previous case, cause free installation of elements 5 and 6 without the occurrence of frictional forces in the traverse guides.

When passes a supercooled ingot with; by pressure (bulging) pressure from the ingot side is transmitted through the supports of the forming rollers to the elements 5 and b of the crosshead, which compress the buffer springs 10 li moving

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together with the rollers 8 upwards, increasing the solution of the rollers by the desired amount. Moving along the columns, the traverse appears in the section with a changed center-to-center distance due to non-parallelness of the columns and other errors, but this does not lead to thrust and friction forces in the guides due to the self-alignment of the elements 5, 6 and the hinge 7 to the position corresponding to the total errors. After the defective ingot section has been passed by the efforts of the buffer springs of the yoke, it returns to its original position. Since the traverse, when hinged beyond the plane of the axes of the columns, cannot create (perceive) the thrust force, this eliminates the possibility of seizing, increases the reliability of the section and reduces the yield of scrap.

The use of a section in a continuous casting machine increases the reliability of the machine and the accuracy of pouring the slabs.

Claims (2)

1. Correctly the continuous section of the machine for continuous casting of billets, containing drive-mounted lower rollers mounted on the frame in the boreholes of the bed, the drive columns HHj interacting with a movable cross-arm, upper rollers mounted on it and buffer springs, characterized in that, in order to increase the reliability of work, the movable cross-bar is made in the form of two hinged elements, the center of the cross-arm offset relative to the plane of the axes of the columns. 2. Section according to Claim 1, characterized in that the hinge connecting the elements of the crosshead is spherical. 0t / S.l S 7 W