DE2238576A1 - ROLLER FOR PIPE ROLLING MILL - Google Patents

Description

Elektrostal'skid zavod tjazelogo masino- P 4-5 305/2

. . - Λ. August 1972

stroenija

BK / Br El ektro ^ ^ t al / USSR

WALZS 5 ¹ US SOHRlVALZWEaK

The present invention relates to construction of rolls for roll stands of tube cold rolling mills and can be used in steel processing.

Ss is the construction of a? 7alze -of. Tube rolling mill known, which at least one driving heat attached to the shaft! for rotating the V _{1 part} forwards and backwards S ^ less than a full turn and two bearings, between which a round caliber (7 / alzbaim with ver-ainoenden ^ semicircular cross-section) is arranged.

In the well-known roller design, the pinion sits, the »bearings and the round caliber on the 7 / elle with one secured excess "

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To change the round caliber ivix-d, dismantle the 7 / alze. But at VZalzenbetrieb the connection points are of y / alcent parts under the influence of high temperatures and loads are sintered, and burrs are formed at these points during dismantling, what these individual parts makes a 7 / alze unusable for further use, so that a repeated installation and removal of a roller known construction is impossible.

Another major disadvantage of the known construction a roll from the tube rolling mill is the impossibility the caliber directly in the V / alzenstrasse to be replaced, since the use of special devices is absolutely necessary ..

It is the object of the present invention to provide the above heated Eliminate disadvantageous parts.

The invention is based on the object of a tube rolling mill roll To develop such a pin construction, in which the connection of 7 / centimeters has its multiple properties Installation and removal possible and the exchange of round calibers directly in the IValzenstraße.

This problem is solved by the development of a tube rolling mill roll which is trotting on the, / hurry attached Pinion for rotating the V / s 11 ο forwards and backwards and has two bearings, between which a round caliber ($ 7alzbahn with tapered semicircular cross-section) is arranged, wherein according to the invention the i '/ elle is a conical

ge shape, while the driving pinion, the bearings!

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and the outer caliber on the shaft with the help of the sleeve with the pinion on the shaft at the Side of the smaller diameter sits and has a common tapered sleeve with the bearing closest to it; there are coaxial hats on the facing end faces of said conical sleeve and of the round caliber executed, which have opposing inclinations in the sleeve, into which the wedges for! fixing the round caliber on the shaft in the! alignment and for the transmission of a torque are installed by the driving pinion.

Such: · a construction of the roller ensures the repeated installation and dismantling of valve parts during of operation and the possibility of using round caliber directly to be replaced in the roller train.

The invention is of an exemplary egg sb, game Recalling -the drawings, namely shows

1 shows a tube rolling mill roll according to the invention in the Longitudinal section;

Pig. 2 is a view in the direction of arrow A in Fig.l.

The Ronrwalzvjerkwalze consists of the conical one Jclle 1, the driving pinion 2, which is used to rotate the ./roll 1 forward and backward less than a full turn connected to the drive, the bearings 3 and 4 and the Runci caliber 5. The round caliber 5 (i.e. a WaIz-

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track with a tapered semicircular cross-section) a technological changing facility.

The driving pinion 2 and the bearing 3 are on a common tapered sleeve 6 attached, which means on the shaft 1 from the side of the smaller diameter of the wedge 7 and the screw 8 is attached. The storage 4 is attached to the conical sleeve 9, which on the shaft 1 is fastened from the side of the larger diameter by means of the flange 10 and the screws 11.

The round caliber 5 is attached to the conical sleeve 12, which is arranged on the shaft 1 between the sleeves 6 and.

In the face of the round caliber 5 facing The end face of the sleeve 6 has two coaxial grooves with opposing inclinations. In the face of the sleeve 6 facing end face of the round caliber 5 are also two coaxial hats with the regular rectangular one

the

Cross-section executed in the end face of the sleeve 6 executed grooves are arranged similarly.

In the mentioned grooves are with the sliding fit Wedges 13 and 14 attached, which are connected to one another by means of the screw 15.

This facility works as follows.

The folding stand roll runs during the rolling process (the rack) forward and backward, with the driving pinion 2 moving forward and backward less than

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turns a full turn; this rotation will be rigid thanks to it! Fixation of the pinion on the '«Veila I on sleeve 6, ■ V / elle 1 and case 9 and via wedges IJ and 14 on the Sund caliber 5 transferred with the sleeve 12.

The forward and reverse of the 7 / roll stand and the forward and reverse rotation of the ground caliber 5> ensure the metal deformation in the rolling path of the caliber, 5-

The assembly of the round caliber 5 on the ^ eIIe 1 takes place when assembling the roller as follows.

The sleeve 12 with the round caliber 5 is between the Sleeves 6 and 9 of the bearings 3 and 4 adjusted so that the face of the caliber 5 groove the hats to the End face of the sleeve. 6 connects. The V / elle 1 is in the conical sleeves 6, 9 and 12 set up on the part of the sleeve 9. With the help of the wedge 7, the sleeve 6 is pushed over the skin 1 in shifted in the direction of the larger shaft diameter. The sleeve 9 then becomes the bearing 4 by means of the screws 11 and of the flange IO over the V / elle 1 In, .the direction to the larger V / ell diameter moves.

The wedges 13 and 14 are inserted into the grooves of the sleeve 6 and the round caliber 5 installed and moved by means of the screw 15 in the opposite direction, whereby the displacement of the caliber 5 with the sleeve 12 along the axis of the shaft in the direction of the larger diameter of the «parts .. 1 guaranteed will. . '■ _-.

Successive displacement of the sleeves 6, 9

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and 12 along the axis of shaft 1 takes place until it is reached a play-free setting of the sleeves 6, 9 and 12 on the corresponding section of the shaft 1. The removal of the roller (changing the dog caliber 5) is done in the reverse order.

The presence of a tapered connection between the ^ ülsen 6, 9 »12 and the shaft 1 allows a backlash-free Secure the setting of all roller parts on the common shaft 1 su. Doing so will damage the work surfaces the roller parts when expanding the '.VaIze thanks the cones on the sleeves 6, 9 and 12 excluded, which allows the multiple installation of these roller parts.

The cylinder installation and removal of the invention Construction can be carried out directly in the roller train without changing the roller working position and without using Special devices are made what the replacement of Allows calibres without long shutdown of the rolling mill.

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Claims (1)

■ _ ₇ _ P • August 4, 1972 BK / Br PATTERN Slogan e / rt Roller of a tube rolling mill, which has a driving ritael attached to a shaft for rotating the shaft (forwards and backwards) less than one full revolution and two bearings, between which a round caliber is arranged, characterized in that the shaft ( 1) has a conical 3? Shape, while the pinion (2), the bearings (5, 4) and the round caliber (5) ″ are attached to the shaft (1) with the aid of the tapered sleeves (6, 9, 12) j ■ with the pinion (2) on the shaft (1) arranged. the side of the smaller diameter and the nearest him storage (3) has a common taper sleeve (6), (5) coaxial hats are constructed at the mutually facing end surfaces of the conical sleeve (6) and the round caliber, which in the sleeve ( 6) have opposing inclinations in which 'wedges (7) for fixing the round caliber (5) on the shaft (1) in the longitudinal direction and for transmitting a torque from the driving pinion (2) are built in'. 309808/0891 Blank page