JPS5510343A - Hydraulic screw-down device of rolling mill - Google Patents

Hydraulic screw-down device of rolling mill

Info

Publication number
JPS5510343A
JPS5510343A JP8308978A JP8308978A JPS5510343A JP S5510343 A JPS5510343 A JP S5510343A JP 8308978 A JP8308978 A JP 8308978A JP 8308978 A JP8308978 A JP 8308978A JP S5510343 A JPS5510343 A JP S5510343A
Authority
JP
Japan
Prior art keywords
screw
simultaneous
rams
levelling
intermediate jacks
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
JP8308978A
Other languages
Japanese (ja)
Inventor
Toyoji Masuda
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 JP8308978A priority Critical patent/JPS5510343A/en
Publication of JPS5510343A publication Critical patent/JPS5510343A/en
Pending legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B31/00—Rolling stand structures; Mounting, adjusting, or interchanging rolls, roll mountings, or stand frames
    • B21B31/16—Adjusting or positioning rolls
    • B21B31/20—Adjusting or positioning rolls by moving rolls perpendicularly to roll axis
    • B21B31/32—Adjusting or positioning rolls by moving rolls perpendicularly to roll axis by liquid pressure, e.g. hydromechanical adjusting

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Transmission Devices (AREA)

Abstract

PURPOSE:To make possible rolling of high accuracy with an inexpensive device by providing the simultaneous screw-down intermediate jacks and simultaneous levelling intermediate jacks which operate the screw-down rams on the operation side and driving side in the screw-down device of the rolling mills. CONSTITUTION:The both screw-down rams 7 provided on the operation side A and driving side B are cooperatively moved by the simultaneous levelling intermediate jacks consisting of the pistons 22 which are movable by drivers 25, pinions 24, racks 23 as well as right and left inner chambers, etc. whereby they are levelled in the opposite directions. Also, the simultaneous screw-down intermediate jacks consisting of screw-down setters 14, flow control units 13, control valves 12, simultaneous screw-down pistons 18, etc. are provided and the control units 13 are operated by the feedback from a displacement gauge 11 so that the specified screw-down is accomplised by means of fluid lines 19, 20 and rams 7. This is improved by combining the simultaneous screw-down system and simultaneous levelling system of conventional methods and the device is relatively inexpensive.
JP8308978A 1978-07-10 1978-07-10 Hydraulic screw-down device of rolling mill Pending JPS5510343A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8308978A JPS5510343A (en) 1978-07-10 1978-07-10 Hydraulic screw-down device of rolling mill

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8308978A JPS5510343A (en) 1978-07-10 1978-07-10 Hydraulic screw-down device of rolling mill

Publications (1)

Publication Number Publication Date
JPS5510343A true JPS5510343A (en) 1980-01-24

Family

ID=13792447

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8308978A Pending JPS5510343A (en) 1978-07-10 1978-07-10 Hydraulic screw-down device of rolling mill

Country Status (1)

Country Link
JP (1) JPS5510343A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57132752U (en) * 1981-02-07 1982-08-18
JPS57132751U (en) * 1981-02-07 1982-08-18
JPS57132753U (en) * 1981-02-07 1982-08-18

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57132752U (en) * 1981-02-07 1982-08-18
JPS57132751U (en) * 1981-02-07 1982-08-18
JPS57132753U (en) * 1981-02-07 1982-08-18

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