SU1675006A1 - Device for braking rolled pieces on roll table - Google Patents

Abstract

The invention relates to metallurgy, in particular, to rolling equipment, and is intended for use in a mill line in the manufacture of thin-walled steel and bent sections. The aim of the invention is the elimination of surface deterioration when braking thin-walled steel. The device is equipped with at least a pair of caliber-conjugate rollers, one of which is made of bandaged and equipped with a thinning mechanism, and a key. silt

Description

The invention relates to metallurgy, in particular, to rolling equipment, and is intended for use in a rolling mill line in the manufacture of thin-walled steel, curved sections.

The purpose of the invention is the elimination of surface damage when braking thin-walled steel.

FIG. 1 shows a device for stopping a rental on a roller table, general view; in fig. 2 - the same. side view.

The device for braking the rolling stock on the roller table contains a pair of caliber conjugate rollers 1 and 2 fixed on axles 3 and 4. which are mounted in racks 5, the lower roller 2 contains a band 6 of elastic material mounted on an expansion sleeve 7 interacting with a wedge sleeve 8, freely moving on the axis 4. The expanding sleeve 7 carries in its special lugs 9 two shoulders levers 10 pivotally mounted on the axles 11. On one shoulder 12 of the double-arm levers (0) are installed centrifugal weights 13 which go together and go. to other springs 14 The other arm 15 of the two shoulders arm 10 is connected through 1 h 16 s to the meter sleeve 8 and to the connecting 17, which is connected, for example, with the loading mechanism 18. A support plate 19 is located on the frame of the device

The device works as follows

Along the rollers of the roller conveyor, the profile 20 moves at a speed V and in the process of movement enters the gauge between a pair of rollers 1 and 2, driving them to a lowering. When the lower roller 2 rotates, the centrifugal weights 13 due to the action of the centrifugal forces Pi are diverged in different directions, stretching the spring 14 Two holes snarling. 10 turn around on axis 11, shoulder 15 of two arms on lever 10 moves / 16 to the left (Fig. 1). In this case, the wedge sleeve 8, freely moving on the axis 4. interacts with an expanding bush O 7 and expands in diameter D0H blant 6 with the force G B at the same time a different end 16

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The coupling 17 is connected and is connected to the loading mechanism 18. The kinetic energy of the moving steel 20 is transferred to the loading mechanism 18, which is associated with the payload. The speed of movement V of rolled 20 decreases. The centrifugal weights 13 under the action of the spring 14 converge and the wedge bushing 8 moves to the right, releasing the expansion bushing from the force P2. The band 6 returns to its original position, and the 20-low speed rolling is directed along the roller table to the anvil plate 19 and stops. In this case, a sharp dynamic impact of the profile 20 on the thrust plate 19 does not occur, since most of the kinetic energy of the rolled product is utilized and used to drive the loading mechanism 18.

Rolling braking is carried out smoothly, the load is gradually increasing, the maximum value is reached and the attenuation is determined by rolling, its kinetic energy, which does not require adjustment of the braking mechanism. It also excludes any energy costs for the braking drive, moreover, its energy can be used.

Claims (1)

Claims Apparatus for braking a rolling stock on a roller table, comprising a clamping mechanism Rolling, characterized in that, in order to avoid damage to the surface of thin-walled steel, the clamping mechanism is equipped with at least one pair of caliber mating rollers, one of which is made of relined, and provided with expansion and driving wedge bushings, the latter of which is mounted on the roller axis with the possibility of axial movement, and the drive is made in the form of centrifugal loads, hinged on the expanding sleeve and connected tightly with the wedge. Q2 v m FIG. 2 nineteen 4 4.