SU1256827A1 - Composite rolling mill roll - Google Patents

Description

The invention relates to metallurgy, in particular to the construction of composite mill rolls, means for fastening a tire on an axis.

Composite rolls containing an axis, a shroud mounted on an axis, an end tensioning sleeve disposed between them and means for fastening the shroud on an axis, made in the form of a hydraulic cylinder and a disc spring, are known (see Aut. St. GDR No. 141466, Cl. B 21 B 27/02, 1980).

The disadvantages of the known device are the inevitable loss of working fluid in the hydraulic equipment at each change of rolls, as well as non-symmetry, resulting in increased loads on the engine.

The aim of the invention is to increase the reliability of fastening of the tire on the axis and to improve the performance characteristics of the roll by achieving uniformity of the distribution of stress in its structure.

The goal is achieved by the fact that in the composite rolling roll; containing an axis, a shroud mounted on an axis, a conical tensioning sleeve disposed between them, and a fastening mechanism of the shroud on the axle; the fastening mechanism of the shroud on the axle is provided with a support cup fixed by means of a prismatic key on the axle to move along it and Kana to the end of the bandage, on the inner end surface of the support cup are placed springs that interact by means of a pressure washer with the end surface of the conical sleeve, and on the inner side surface molecular glass retainers.

In this case, the means of pressing the support cup to the end surface of the bandage are made in the form of a tight nut and pre-tensioned spring plates fixed on the axis also with the possibility of moving along it interacting with the outer end surface of the support stykan.

The drawing shows the device section.

The mill roll contains axis 1 with band 2, tapered bushing 3, support cup 4, spring plates 5 and 6, pressure nut 7.

five

0

5 oh Q

j

five

On the inner end surface of the support cup 4 springs 8 are placed, interacting through the pressure washer 9 with the end surface of the conical sleeve 3, a retainer 10 is placed on the inner side surface of the support cup 4. The support cup 4 is fixed on the axis 1 using a parallel key 1I. Spring plates 5 and. 6 and the fixed nut 7 are joined by the collar 12.

The band 2 is supported on the axial stop 13, on the outer side surface of the supporting sleeve 4, the shoulders 14 are made.

The device works as follows.

On the conical sleeve 3, fixed on the axis, a bandage 2 is installed, with the end of the conical sleeve protruding and s of the bandage.

Then, on the axis I, the support cup 4 is fastened with the help of a prismatic key 11 and springs 8 and a clamp 10 located on its inner surface, while the springs 8, not being pressed, contact through the pressure washer 9. with the end surface of the conical sleeve, as the supporting glass 4 is not connected with the end surface of the bandage 2.

When the spring plates 5 and 6 mounted on it are moved along the axis by moving the tension nut 7, the force of the springs 8 increases, as a result of which the taper bushing 3 enters the gap between the axis 1 and the band 2, the supporting sleeve interacts with the end face the bandage, with the bandage without a gap adjacent to the axial stop 13.

Using a hydraulic device fixed on one side to the outer surface of the spring plate 6, and on the other on the collar 14, the spring system 5 and 6 are pre-tensioned, after which the nut 7 is tightened and the hydraulic device is removed. The design remains in the stressed state, which allows to reliably transfer the rolling moment to the roll axis.

The spring plates 5 and 6 and the clamping nut are joined by the collar 12 into a conveniently maintained unit.

A hydraulic device is also used to disassemble this device.

3 12568274

device. After the removal of the clamping, the proposed device 7 provides the support cup 4 and the safe and quick fastening is removed.

together with the springs 8, push-pull disassembly of the band on the axis with the agri-rubber 9 and the latch 10, after which the stress distribution in

the sleeve 3 is removed together with a 5 ° body as well as a reduction in costs

bandage. .on its manufacture.

Compiled by M. Reutov. Editor L. Pevkhan Tehred M. Hodaiic Corrector, Shekmar. Order 4861/7 Circulation 518 Subscription

VNIIPI USSR State Committee

for inventions and discoveries 113035, Moscow, Zh-35, Raushsk nab., 4/5

Production and printing company Uzhgorod, st. Project, 4

Claims (1)

COMPOSITE ROLLING SHAFT containing an axis 1, a bandage 2 mounted on an axis, a conical coupling sleeve 3 placed between them and a bandage fastening mechanism on an axis, characterized in that, in order to increase the reliability of the bandage fastening and improve the roll performance, the bandage fastening mechanism on the axis is equipped with a support cup 4, secured with a key 11 on the axis 1 with the ability to move along it and by means of pressing the support cup to the end of the bandage, on the inner end surface of the support stack at has a spring 8 interacting by pressure washers 9 with the end of the conical surface of the sleeve, and on the inner side surface of the support cup 4 - retainers 10, wherein the pressing means of the support cup made _Q in the form of a coupling nut 7 and preliminary ^ b but strained spring plates 5 and 6, united by a collar 12, fixed, fixed on the axis 1 also with the possibility of movement along it and interacting with the external end surface of the support cup 4. SU „„ 1256827