SU1015939A1 - Planetary mill - Google Patents

Abstract

A PLANETARY MILL containing a working planetary stand, expanding the shaft of the mill (the master roll stand placed in front of it and the mechanism of axial forced movement of the workpiece with two rack-and-pinion pairs, the slats of which are placed on the mechanism housing, characterized in that with reliability of the end of ingots, gears of toothed-rack pairs are installed on the axes of the rolls of the driver stand with the possibility of axial movement, and the mechanism of axial forced movement of the workpiece is equipped with a cam claw m, located inside the housing between the working and master cages.

Description

The invention relates to rolling production and can be used to improve the design of planetary mills for rolling grades.

A planetary mill is known, which contains a planetary work station and a roll stand L1J.

The disadvantage of the mill design is the impossibility of rolling the sat cooking until the end because of the location of the stands at a considerable distance from each other.

The closest to the proposed technical entity is a planetary mill containing a working planetary stand, in front of it a setting roll cage and a mechanism for axial forced movement of the workpiece with two rack-gear pairs, the slats of which are located in the mechanism housing. This design of the mill allows rolling the slab to the end of C 23.

The disadvantage of the mill is that the coupling of the tail part of the ingot with the axial forced movement mechanism of the workpiece, made in the form of a push rod during the rolling process, is carried out with the help of a figured protrusion on the rod corresponding to the groove on the ingot, which contour on the tail part of the ingot with its movement is technologically difficult due to the vibrations of the ingot and. folding the drive cage, thereby reducing the reliability of the dock of the end of the ingot, /; ; :; . ; The purpose of the invention is to increase the reliability of the end of the ingot.

The goal is achieved by the fact that in a planetary mill containing a working planetary cage, a roller stand located in front of it, and a mechanism for axial forced movement of the workpiece with two rack-gear pairs, the racks of which are spread on the gear case, gears of gear-rack pairs are mounted on the axle rolls driving cage with the possibility of axial movement, and the mechanism of the forced forced movement, the workpiece is equipped with a cam claw located inside the body in the interval between the working and giving her cages.

The proposed design of the mill makes it possible to increase the reliability of the ingot data server by reliably connecting the cam grip of the tail 5 part of the ingot to the axial forced movement mechanism of the workpiece and due to the presence of a single gear-cog drive of the driving stand and axial force mechanism to move the workpiece.

FIG. 1 shows the proposed mill, general: view; FIG. 2, section A-A, FIG. one; in fig. 3 section bb in fig. one; in fig. C 15 section bb In FIG. 3; in fig. 5, view G in FIG. one. . .

The planetary mill includes a frame 1, in the lugs of which four movable bodies 2 are mounted, two 0 pairs of mutually perpendicularly spreaded support rolls 3 placed in movable cases, working planetary rolls 4 installed in separators; 5, located on 5 support rolls , pushing mechanisms 6 for setting the stand to a predetermined size of rolled products, setting rolls 7 installed in the same housing as support rolls with working planetary rolls, gears 8 placed on the axis of setting rolls with possible axial movement The chambers and monks are mounted in the housing 9, where there are also drive roll drive units of the driving stand, an axial forced movement mechanism for the workpiece consisting of the housing 10 and located inside the housing of the cam hook 11 with a hydraulic drive 12 of its displacement. 1, runners 13 mounted on the housing mechanism and engaging gears with gears, wiring 1, attached to the frame, to the outer edges of which are attached guide rails 15, along which the body of the axial forced movement mechanism is moved Application. In the process of rolling the work of the mill He mill, the drive rolls 7 continuously feed the ingot into the deformation zone.

At the final stage of rolling, with the minimum allowable distance of the ingot tail end from the driver forks 7, the hydraulic drive 12 moves the billet gripper 11 of the workpiece, Od3tOI

The gears 8, which are placed on the axes of the setting rolls 7 with the possibility of axial movement, are meshed with the rails 13 mounted on the housing 10 of the axial forced mechanics movement of the workpiece, which can be moved in the rolling direction. When it is approached at the minimum allowable distance to the support rolls 3, a stop (for example, from a limit switch) of the drive rolls is stopped.

When removing the residual part of the ingot from. deformation zone. Again, the key is from the right of the drive for the rolls to reverse. At the same time, gears 8 rotate in the opposite direction on the right axis, respectively, through the rails 13 move the axial forced movement mechanism 9394.

nor with the residual part of the ingot (under-rolling) against the rolling course In this way, the extraction of the underside from the deformation zone of the planetary stand is carried out. At the time of capture of the rear end of the ingot by the drive rolls 7 of the gear 8, they are disengaged from the rails 13. The subdisciplinary shaft is removed

10 rolls of the stand cage,. / /:.:

Compared with the photomultiply, the proposed planetary mill makes it possible to increase the reliability of the end of

, 2 ingots at the expense of supplying non-HANISM of axial forced movement of the billet with a cam locking mechanism and at the expense of a single gear-rack-and-pinion drive: the task of the stand and the mechanism of axial forced re-billet.

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Claims (1)

PLANETARY STEEL containing a working planetary stand, in front of it a master roll stand and a mechanism for axial forced movement of the workpiece with two gear rack pairs, the racks of which are placed on the mechanism body, characterized in that, in order to increase the reliability of the rolling end of the ingots, gears rack-and-pinion pairs are mounted on the axes of the rolls of the master stand with the possibility of axial movement, and the mechanism of axial forced movement of the workpiece is equipped with a cam gripper located inside the housing the gap between the work and specifying the stands. To nputoty planetary ι_ I I w Aa. 1