SU804018A1 - Multiroll-pass rolling stand - Google Patents

Description

(54) ROLLED STOCK WITH MULTI-GALTING CALIBER

one

The invention relates to the equipment for the research institute for rolling varietal profiles and is intended for use in the metallurgical and other industries.

There are various designs of rolling stands with multi-roll gauge, containing a frame, work rolls with cushions, devices for axial and radial installation of the rolls screw, wedge and eccentric mounting devices with drive fi}.

The disadvantage of such stands is the complexity of the axial installation of the rolls due to the presence of two pairs of mutually unrelated control devices. When adjusting the profile according to the height of the gauge by moving the horizontal rolls in the radial direction, the installation of vertical rolls in the axial direction fails, i.e. the profile is adjusted according to the width of the gauge each time the profile height is adjusted.

A known cassette with a roll shaft for a rolling stand with a multi-roll caliber, consisting of a split housing, a roll and bearing assemblies, is characterized in that for axial

for adjusting the roll in the cassette case, sliders are installed, mutually connected to each other by eccentric shafts located in the cassette case f2.

This design of the cassette is difficult to apply in rolling stands with four-rolls ERA gauges for rolling varietal profiles due to the complexity and complexity of the axial installation of the rolls and the low axial rigidity of the mechanism of the axial installation.

A multi-wheel rolling stand, including rolls, is known.

9 with pillows, devices for the installation of rolls and their balancing, bed frame Gz}

The mechanism of the axial installation is combined with the mechanism of radiating movement of the rolls and balancing them in the stands. Such a mechanism is a complex structure, which significantly reduces the rigidity of the axial installation of the rolls. 5 g

The goal is to simplify the configuration of the stand, improving the accuracy of the rolled strips.

The goal is achieved by the fact that a rolling stand with a multi-roll caliber.

including rolls with pillows, devices for installing rolls and balancing them, a bed, is equipped with a V-frame installed in the frame windows, vertical rolls with radial and balance mechanisms are placed in the cross-bar of the specified V-frame, and between the racks of this frame connected to the trimming mechanism, the pillows of the upper horizontal roll are placed, supported through the pressure device on the bed cross member, each pillow of the horizontal roll being connected to the cooTBeTCTByjcwefl with a V-shaped stand we are using a drive eccentric shaft fixed to the middle part in the pillow on the bearing, and the ends in the crawler.

Figure 1 and 2 shows the crate,

general view; FIG. 3 - section aa

in fig. 2; FIG. 4-section BB on

FIG. one; see 5 shows a section B-B in FIG. one.

The rolling stand includes a bed 1, in the windows of which there is a lower horizontal roll 2 with pillows having a cylindrical bearing surface and resting on a plate 3 with a cylindrical surface, V-shaped frame 4 with a balancing mechanism 5, in which there are vertical work rolls with pillows 6, fixed by means of straps 7, and an upper horizontal roll 8 with cushions 9 supported by a cylindrical surface through a stand 11 and a wedge 12 of the pressing device 13 on the cross member iny. Each horizontal roll cushion is connected to a corresponding V-frame stand with an eccentric shaft 14 mounted with a middle part on the bearing 15 in the cylindrical bore 9 of the pad and ends with sliders 16 placed in the open grooves of the V-frame racks. The rotation of the eccentric shafts 14 is carried out from the worm gear 17 by means of a spindle 18. The rotation 17 of the eccentric shaft 14 is mounted on a bracket 19 mounted on the frame 1. To ensure the synchronous rotation of the eccentric shafts 14, there is a clutch 20 connecting the ends of the worm shafts. The axial movement of the vertical work rolls 6 occurs when the spindle 18 rotates. With this eccentric shaft 14, turning in the bearing 15 and the sliders 16, it moves the .V-shaped frame together with the vertical rolls relative to the bed 1. The thickness of the strip is adjusted using a wedge pressure device 13, and adjusting the width of the strip with the help of screw pressure devices 21. horizontal roller 2 is unregulated, which greatly simplifies t the design of the stand, there is no pressure mechanism and balance mechanism Reduces the weight of the rolling stand.

o The use of an uncontrolled lower horizontal roll makes it easier to set up the stand, since the adjustment of the strip thickness is made only by moving the upper horizontal roll.

The fixing of the rolling stand to the slab is carried out with the help of) legs 22.

0 The handling of the rolling stand is carried out in the following sequence. The wedge 12 of the pressure mechanism 13 is brought to the rearmost position. Rotation of the nut 23 mechanism

5, the balancing 5 is fixed in a certain position of the yoke 24. The spindle 18 is released from the stopper 25 and is brought to the extreme left position so that the V-shaped frame 4 is free to move along with the upper horizontal and vertical rollers in the axial direction. After removal of the V-shaped frame, the assembly of the lower horizontal roll is removed from the frame.

Claims (1)

1. Korolev A.A. Mechanical equipment of rolling shops of ferrous and non-ferrous metallurgy. M, USSR Metallurgy Certificate 21 В 13/10, 1971. certificate of the USSR 21 V 13/14, 1969. L guv  sixteen