JPS54133469A - Stretch-bending type straightener - Google Patents

Stretch-bending type straightener

Info

Publication number
JPS54133469A
JPS54133469A JP4119178A JP4119178A JPS54133469A JP S54133469 A JPS54133469 A JP S54133469A JP 4119178 A JP4119178 A JP 4119178A JP 4119178 A JP4119178 A JP 4119178A JP S54133469 A JPS54133469 A JP S54133469A
Authority
JP
Japan
Prior art keywords
roll
face
large diameter
diameter steel
force
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.)
Granted
Application number
JP4119178A
Other languages
Japanese (ja)
Other versions
JPS58922B2 (en
Inventor
Akira Nomura
Yoshio Takakura
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 JP4119178A priority Critical patent/JPS58922B2/en
Publication of JPS54133469A publication Critical patent/JPS54133469A/en
Publication of JPS58922B2 publication Critical patent/JPS58922B2/en
Expired legal-status Critical Current

Links

Landscapes

  • Straightening Metal Sheet-Like Bodies (AREA)

Abstract

PURPOSE: To titled straightener in which the roll-thrust bearing can be retained within a diameter similar to that of the roll, by constituting as follows; one face of the seat plate is contacting with the end face of the roll journal; another face is contacting with plural small steel balls; a large diameter steel ball circumscribes these small steel balls; a part of this large diameter steel ball is projected from the end face of the cylindrical retainer and is supported by the face of the dead load receiver.
CONSTITUTION: The thrust force F, generated in the work roll 1 while the straightening work, is transmitted from the roll 1 to the seat plate 2 through the roll journal end 1', and is transmitted to three small diameter steel balls 3 being distributed uniformly to three balls 3; depending on the balance between forces acting on the cylindrical retainer 6 and the large diameter ball 4, the small diameter balls 3 transmit the force (F/n).tanθ to the cylindrical retainer 6, and the force (F/n). (1/cosθ) to the large diameter ball 4 respectively. In above formulas, (n) is the number of small diameter steel balls 3, that is 3 in this case. The large diameter steel ball 4 composes three forces given by small diameter steel balls 3 into a composite force equal to the thrust force F generated in the roll 1, and transmits this force to the face of dead load receiver 5. The large diameter steel ball 4 does not rotate, however, the samll diameter steel balls 3 rotate and move round making the rolling contact, so that the bearing of good wear resistance can be obtained.
COPYRIGHT: (C)1979,JPO&Japio
JP4119178A 1978-04-10 1978-04-10 Tensile bending straightening machine Expired JPS58922B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4119178A JPS58922B2 (en) 1978-04-10 1978-04-10 Tensile bending straightening machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4119178A JPS58922B2 (en) 1978-04-10 1978-04-10 Tensile bending straightening machine

Publications (2)

Publication Number Publication Date
JPS54133469A true JPS54133469A (en) 1979-10-17
JPS58922B2 JPS58922B2 (en) 1983-01-08

Family

ID=12601522

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4119178A Expired JPS58922B2 (en) 1978-04-10 1978-04-10 Tensile bending straightening machine

Country Status (1)

Country Link
JP (1) JPS58922B2 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56128612A (en) * 1980-03-12 1981-10-08 Sumitomo Electric Ind Ltd Sintered diamond die and its manufacture
FR2595591A1 (en) * 1986-03-12 1987-09-18 Clecim Sa AXIAL HOLDING DEVICE FOR A ROLL, ESPECIALLY FOR A ROLLING MILL
JPH02228229A (en) * 1989-02-28 1990-09-11 Alps Electric Co Ltd Thrust bearing device of rotating shaft

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60190609U (en) * 1984-05-29 1985-12-17 宮田工業株式会社 bicycle packaging box
JPS6135125U (en) * 1984-08-06 1986-03-04 宮田工業株式会社 Bicycle outer box

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56128612A (en) * 1980-03-12 1981-10-08 Sumitomo Electric Ind Ltd Sintered diamond die and its manufacture
FR2595591A1 (en) * 1986-03-12 1987-09-18 Clecim Sa AXIAL HOLDING DEVICE FOR A ROLL, ESPECIALLY FOR A ROLLING MILL
JPH02228229A (en) * 1989-02-28 1990-09-11 Alps Electric Co Ltd Thrust bearing device of rotating shaft

Also Published As

Publication number Publication date
JPS58922B2 (en) 1983-01-08

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