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JPS5758907A - Hydraulic cylinder for rolling mill - Google Patents

Hydraulic cylinder for rolling mill

Info

Publication number
JPS5758907A
JPS5758907A JP13430780A JP13430780A JPS5758907A JP S5758907 A JPS5758907 A JP S5758907A JP 13430780 A JP13430780 A JP 13430780A JP 13430780 A JP13430780 A JP 13430780A JP S5758907 A JPS5758907 A JP S5758907A
Authority
JP
Japan
Prior art keywords
cylinder
ram
cover
protecting
stopper
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
JP13430780A
Other languages
Japanese (ja)
Inventor
Hiroshi Chinbe
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 JP13430780A priority Critical patent/JPS5758907A/en
Publication of JPS5758907A publication Critical patent/JPS5758907A/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)
  • Actuator (AREA)

Abstract

PURPOSE:To shorten the total height of a hydraulic cylinder, and to thin the thickness of a bottom plate of the cylinder, by attaching a protecting cover on the working side of a reducing cylinder, and by installing a stopper on the stationary side for restraining the stroke of the working member. CONSTITUTION:A protecting cover 11 for protecting the outer surface 2 of a ram 1 is attached on the working side of a reducing cylinder. A stopper is provided in this cover 11, and another stopper is provided in a cylinder 6; hereby, the ram 1 is prevented from rushing out of the cylinder 6. Thereby, the cover 11 has a protecting function for the outer surface 2 of the ram 1 and a preventing function for the ram 1 from rushing out of the cylinder 6. At the bottom 14 of the cylinder 6, a part 15 being backed up by a housing 10 is thin-walled, and other parts 16 are thick- walled. By the present constitution, the total height of the cylinder is shortened so that the cylinder is easily built in an electrically reducing type rolling mill.
JP13430780A 1980-09-29 1980-09-29 Hydraulic cylinder for rolling mill Pending JPS5758907A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP13430780A JPS5758907A (en) 1980-09-29 1980-09-29 Hydraulic cylinder for rolling mill

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13430780A JPS5758907A (en) 1980-09-29 1980-09-29 Hydraulic cylinder for rolling mill

Publications (1)

Publication Number Publication Date
JPS5758907A true JPS5758907A (en) 1982-04-09

Family

ID=15125225

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13430780A Pending JPS5758907A (en) 1980-09-29 1980-09-29 Hydraulic cylinder for rolling mill

Country Status (1)

Country Link
JP (1) JPS5758907A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6459812A (en) * 1987-08-31 1989-03-07 Oki Electric Ind Co Ltd Manufacture of semiconductor device
US5162822A (en) * 1988-10-31 1992-11-10 Hitachi, Ltd. Saw filter chip mounted on a substrate with shielded conductors on opposite surfaces

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6459812A (en) * 1987-08-31 1989-03-07 Oki Electric Ind Co Ltd Manufacture of semiconductor device
US5162822A (en) * 1988-10-31 1992-11-10 Hitachi, Ltd. Saw filter chip mounted on a substrate with shielded conductors on opposite surfaces

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