SU645316A1 - Bearing device of rolling roller barrel - Google Patents

Description

The invention relates to the field of metallurgical engineering, in particular, to the construction of rolling stands. A mill roll barrel support device is known, comprising a base beam mounted on a hydrostatic bearing pedestal liner with lubrication pockets, interacting with the surface of the roll barrel, and a half-liner profile adjustment mechanism mounted in a beam of hydraulic cylinders, the plungers of which interact with the half-liner. In order to increase the accuracy of rolling by automatically maintaining the stability of the profile, the semi-deposits of the working cavity of each of the hydraulic cylinders of the proposed device are connected to the corresponding profile mainly through a force transducer. FIG. 1 shows a device with regulation of the profile of the half-liner in the longitudinal direction; figure 2 - section aa of figure 1; Fig. 3 device with the regulation of the profile of the half-liner in the transverse direction. According to the first embodiment (Figures 1 and 2), the device consists of a bed 1 of a rolling stand, in which rigid support bars 2 are installed. The support roll 3 with bearings 4 is supported on the half-shell 5 by a barrel, forming a hydrostatic bearing with it. Hydrocyles 6 are installed between traverse 2 and half-liner 5 for adjusting the profile of the latter roll barrel along the length of the roll barrel. Hydrostatic pockets 7 are made along the axis of each hydraulic cylinder b in half-sleeve 5, into which pressure lubrication is applied. The working cavity of each of hydraulic cylinders 6 is connected by a common pipeline 8 with the corresponding pocket 7 through the force transducer 9 (for example, a throttle). The pressure in the pipeline 8 is maintained by the regulator 10 on the pressure gauge 11. The device works as follows. The lubricant, under the pressure of entering into the hydraulic cylinders 6, determines its force 645316

ria roll 3, a, all hydraulic cylinders 6 total determine rolling force

The ratio of the sizes of hydraulic cylinders b, pockets 7 and throttles 9 is chosen from the condition that in the range of possible changes in lubricant flow through a bearing in the gap liquid friction and pasftCiBesie force of rolling, bearing capacity of the lubricating layer and force of hydraulic cylinders 6 is provided. layer with increasing load on the hydraulic cylinder jS and, therefore, on the bearing, always; increases,

In the process of rolling with an increase in pressure: ne; no metal on the rolls decreases the gap in the bearing, therefore, the pressure in pockets 7 and hydraulic cylinders increases. Thank you. The pressure in the pockets 7 occurs up to an amount at which the force in the hydraulic cylinders 6 and the bearing capacity of the bearing are balanced.

1 It is possible to adjust the rolling pressure by varying the amount of lubricant supplied to the hydrostatic bearing from Hacjoca 12 with adjustable capacity. ;

According to the second variant, the versions (FIG. 3) in the cage 13 are installed a beam 14 supporting on the pressure screws 15. In the 15 alkya 14 there is a half-liner 16c hydrostatic // pocket 1 MC 17 connected by pipe 18 with the working cavities i9 of the hydraulic cylinders 20.

The operation of the device in this case is carried out as follows.

During rolling, the lubricant under pressure is supplied to the pockets 17 of the hydraulic bearing and to the working cavities 19 of the hydraulic cylinders 20. The areas of the plungers of the hydraulic cylinders 20 are selected depending on a given load.

As the rolling pressure changes in one direction or the other, the pressure in pocket 17 and cylinder cylinders 20, which maintain the half-liner profile 16 constant, regardless of, changes accordingly. rolling.

Claims (1)

Invention Formula Roller barrel support device containing a support beam, a semi-liner mounted on it of a hydrostatic bearing with lubrication pockets, interacting with the surface of the roll barrel, and a half-shell profile adjusting mechanism in the form of hydraulic cylinders mounted on the beam, the plungers of which interact with the half insert, featuring different ones. , in order to improve the accuracy of rolling by automatically maintaining the stability of the semi-deposits profile, the working cavity of each of these hydraulic cylinders is connected and its respective pocket primarily through force transducer.  r Yu A-A t / s.2 f2 Ll fPi / i.f eight . ".-". "" ,,, .. i 645316 (RiaZ