JPS56163010A - Apparatus for preventing overload and for releasing roll from shut-up condition in rolling mill - Google Patents

Apparatus for preventing overload and for releasing roll from shut-up condition in rolling mill

Info

Publication number
JPS56163010A
JPS56163010A JP6649680A JP6649680A JPS56163010A JP S56163010 A JPS56163010 A JP S56163010A JP 6649680 A JP6649680 A JP 6649680A JP 6649680 A JP6649680 A JP 6649680A JP S56163010 A JPS56163010 A JP S56163010A
Authority
JP
Japan
Prior art keywords
shut
roll
condition
thrust piece
band
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP6649680A
Other languages
Japanese (ja)
Inventor
Isao Shiga
Teruo Sekiya
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hitachi Ltd
Original Assignee
Hitachi Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP6649680A priority Critical patent/JPS56163010A/en
Publication of JPS56163010A publication Critical patent/JPS56163010A/en
Pending legal-status Critical Current

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  • Metal Rolling (AREA)

Abstract

PURPOSE: To prevent a rolling mill from breakage troubles due to an overload, by fixing a tapered segmental thrust piece between a roll chock casing and a screw down member, by releasing the shut-up condition of a rolling roll with a small working force, or by making a pin shear off.
CONSTITUTION: A tapered segmental thrust piece 13 is fixed with a retainer band 12 between a roll chock casing 2 and a seat metal 7 of a reducing screw 3; and the retainer band 12 is fixed through a shear pin with a bolt fixing band 16. If an abnormal excess load is impressed during the rolling work, the shear pin set in the bolt fixing band 16 is sheared off so that a screw driving system and a stand are prevented from the excess load. When the shut-up condition of the roll is to be released, a bolt 15 is loosened and the retainer band 12 is turned outward around a hinge; hereby, a clearance is formed between the tapered segmental thrust piece 13 and the retainer band 12 so that the tapered segmental thrust piece 13 is released from the restraint. As a result, a clearance is formed between the seat metal 7 and a base metal 10 so that the roll is released from the shut-up condition.
COPYRIGHT: (C)1981,JPO&Japio
JP6649680A 1980-05-21 1980-05-21 Apparatus for preventing overload and for releasing roll from shut-up condition in rolling mill Pending JPS56163010A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6649680A JPS56163010A (en) 1980-05-21 1980-05-21 Apparatus for preventing overload and for releasing roll from shut-up condition in rolling mill

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6649680A JPS56163010A (en) 1980-05-21 1980-05-21 Apparatus for preventing overload and for releasing roll from shut-up condition in rolling mill

Publications (1)

Publication Number Publication Date
JPS56163010A true JPS56163010A (en) 1981-12-15

Family

ID=13317471

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6649680A Pending JPS56163010A (en) 1980-05-21 1980-05-21 Apparatus for preventing overload and for releasing roll from shut-up condition in rolling mill

Country Status (1)

Country Link
JP (1) JPS56163010A (en)

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