SU845943A1 - Hot strip coiler drum - Google Patents

Description

(54) HOT BAND DRUM PANEL

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The invention relates to the processing of metals by pressure, in particular, in the manufacture of hot rolled sheet.

A drum is known, consisting of sectors (segments), a shaft with grooves in the cantilever part in which a wedge is fixed (square rods with wedge lugs). A ring is mounted on the end of the shaft, which holds the wedge and the sectors pressed to it by wedge projections. The drum is wedged out by axial movement of the shaft with the rods 1 rigidly arranged on it.

However, in this expansion mechanism, the axial force is not closed on the shaft, but is continuously perceived during operation by an additional thrust bearing.

Limes also have a hot strip winder drum containing a rotating shaft driven with T-shaped protrusions, a rod located inside the drive shaft, sectors with T-grooves mounted on the drive shaft, T-slot sectors and a wedge mechanism, which has square square rods, is secured with a PPNIM 1L- itgg1M and liltauAa O1

However, in this design of the baraba, the hollow bars of the wedge mechanism are fixed at one end, just like the other ends of the bars lie freely in the slots of the cross-shaped shaft. When rotating the drum's scientific research institute (it rotates at a speed of up to 700 rpm), the centrifugal forces open the loose ends of the rods from to; a, the rods are bent, which leads to their poles, as well as to an increase in pressure on the rods from the rods. As a result, locks are locked, holding sectors on

to lu. Cyclic;: The work pattern of the barab leads to a change in the forces on the chimney surface from the side of the loose rod ends, which accelerates their wear.

The purpose of the invention is to increase hope; drum life and durability

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This goal is achieved by the fact that the Raban is equipped with additional supports i installed in the drum in the area where the drive is located, and the rods with their other components are installed in additional supports | x.

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Claims (2)

FIG. Figure 1 shows the MOTaj drum of the 1st strip, with a full view, a slit; on f 2 - section A-A in FIG. one; in fig. 3 The drum of the hot strip winder consists of a hollow cruciform shaft 1 (Fig. 1) ,. inside of which the rod 2 passes, fastened with a washer 3, to which the rods 4 are fastened with one end, the two mutually perpendicular sides of which are provided with wedge lugs. The other ends 5 (additional supports) of the rods 4 enter into the apertures of the shaft 1, interacting with the sleeves 6 pressed into them (Fig. 3). The shaft 1, which has T-shaped protrusions 7, secures the sectors 8, which have T-shaped depressions 9 (Fig. 2), and rings 10 and 11, which were used for axial fixation of the sectors 8. The sectors 8 are wedged; with the wedge surfaces of the rods 4, to which the strips 12 are fastened. The springs 13 located on the shaft 1 serve to compress the sectors. Inside the rods there are holes through which lubricant is supplied to the slit surfaces of the drum. The drum works in the same way. Before winding the strip, the diameter of the drum increases, then begins to rotate and after winding the roll stops, its diameter decreases, the roll collides, and so on. When moving in the axial direction of the rod 2 to the right (the rod drive is not shown), the washer 3 mounted on it and the rods 4 secured with it also change to Biipafjo, and their additional supports 5 slide along the sleeves 6 inserted into the shaft holes of the rods 6. surfaces and strips 12 arranged on them with wedge surfaces of sectors 8, which move in a radial direction, increasing the diameter of the drum until their T-shaped hollows 9, made in sectors 8, abut T-shaped protrusions 7, execute The data on the shaft 1. At the same time, the springs 13 are compressed, preventing the unclamping of the sectors. When the rod 2 moves to the left, the rods 4 fastened to it by means of the washer 3 are also pushed to the left. At the same time, sectors 8 using springs 13, which try to reduce the sectors, move radially to the center of shaft 1 before contact with it, reducing the diameter of the drum. When the drum is compressed and released, the additional supports 5, made on the rods 4, do not get out of engagement with the sleeves 6 on the shaft 1. When the drum rotates, the rods 4 with their additional sides 5 are held on the shaft without leaving their ends. The fastening of the rods of the unclamping mechanism with the shaft, achieved by installing additional poles' supports in its holes, eliminates bending and breaking of the rods when the drum rotates. The drum beating and pressure on the sectors from the rods are reduced, which means that the service life of the rubbing surfaces is increased. Increases the reliability of the drum. The durability of the device is increased 2.5 times. The economic effect of using the invention is 132150 rubles. DETAILED DESCRIPTION OF THE INVENTION A hot strip winder drum comprising a shaft made with T-shaped protrusions with a drive for its rotation, a rod mounted inside the shaft, sectors with T-slots mounted on the shaft, a washer and a wedge mechanism having square rods fixed at a washer, characterized in that, in order to increase reliability and durability, it is provided with supports installed in the drum in the drive placement area, and the rods with their other ends are installed in the supports. Sources of information taken into account in the examination 1. G. Khimich. Mechanical equipment of cold rolling shops. M., “Mechanical Engineering, 1972, p. 353, rns. 174. 2. USSR author's certificate number 159788, cl. B 21 C 47/30, 09.11.63 (prototype).