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(19)

(11)

2 450 875

(13)

(51)

IPC

B21B25/02(2006-01-01)

(21) (22)

Application

2010152327/02, 2010-12-22

(24)

Start date

2010-12-22

(22)

Actual filing date

2010-12-22

(45)

Published

2012-05-20

(72)

Inventor

Serman Boris AleksandrovichTartakovskij Boris IgorevichFominykh Evgenij Nikolaevich

(73)

Holder

Otkrytoe Aktsionernoe Obshchestvo Zavod Tjazhelogo Mashinostroenija"

ROLL MILL ADJUSTABLE-SPEED LONG MANDREL DRIVE Russian patent published in 2012 - IPC B21B25/02

Abstract RU 2450875 C1

FIELD: process engineering.

SUBSTANCE: proposed device comprises bar with double-sides rack teeth, mandrel stem gripper and side support rolls with flanges, lengthwise guides in contact with bar support rolls, and bar drive. Said bar is furnished with thrust plates arranged level with rack gearing line. Bar drive comprises two gears arranged in common vertical plane to engage with bar teeth and equipped with extra one or several pairs of gears fitted parallel with said first pair and at distance exceeding gear OD. Gears are provided with shrouds to stay in contact with thrust plates. Lengthwise guide are arranged on both side of rack gearing at the level exceeding gearing level by magnitude exceeding support roll flange height.

EFFECT: higher efficiency.

2 dwg

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RU 2 450 875 C1

Authors

Serman Boris Aleksandrovich

Tartakovskij Boris Igorevich

Fominykh Evgenij Nikolaevich

Dates

2012-05-20—Published

2010-12-22—Filed