ITTO930043U1 - SUPPORT DEVICE - Google Patents

SUPPORT DEVICE

Info

Publication number
ITTO930043U1
ITTO930043U1 IT93TO000043U ITTO930043U ITTO930043U1 IT TO930043 U1 ITTO930043 U1 IT TO930043U1 IT 93TO000043 U IT93TO000043 U IT 93TO000043U IT TO930043 U ITTO930043 U IT TO930043U IT TO930043 U1 ITTO930043 U1 IT TO930043U1
Authority
IT
Italy
Prior art keywords
sleeve
support
plates
radial
thrust
Prior art date
Application number
IT93TO000043U
Other languages
Italian (it)
Inventor
Daisuke Konno
Yumiko Noda
Original Assignee
Ebara Corp
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 Ebara Corp filed Critical Ebara Corp
Priority to ITTO930043 priority Critical patent/IT231333Y1/en
Publication of ITTO930043V0 publication Critical patent/ITTO930043V0/en
Publication of ITTO930043U1 publication Critical patent/ITTO930043U1/en
Application granted granted Critical
Publication of IT231333Y1 publication Critical patent/IT231333Y1/en

Links

Abstract

Dispositivo comprendente una base, un alberino ritto su una parte centrale della base, un elemento (4) fissato sull'alberino, due piastre di spinta (3) fissate alle superfici terminali dell'elemento (4), e un manicotto (6) supportato a rotazione dalle piastre (3) e dal manicotto (6), in cui un supporto idrodinamico radiale è formato dall'elemento (4) e dal manicotto (6), supporti idrodinamici di spinta sono formati dalle due parti terminali del manicotto (6) e dalle piastre (3), un gas è impiegato per generare pressione dinamica nei supporti di spinta, il supporto radiale ha un gioco stretto, una parte smussata è prevista sulla periferia esterna di ciascuna estremità dell'elemento (4) e un'altra parte smussata è prevista sulla periferia interna di ciascuna estremità del manicotto (6) creando un gap d'aria (13) a ciascuna estremità assiale del supporto radiale, un liquido lubrificante è impiegato per generare pressione dinamica nel supporto radiale, piccoli fori (8) sono previsti nella superficie periferica dell'elemento (4), e il lubrificante è a tenuta nel gioco del supporto grazie ai gap d'aria (13).Device comprising a base, a spindle standing on a central part of the base, an element (4) fixed on the spindle, two thrust plates (3) fixed to the end surfaces of the element (4), and a sleeve (6) supported rotationally from the plates (3) and from the sleeve (6), in which a radial hydrodynamic support is formed by the element (4) and by the sleeve (6), hydrodynamic thrust supports are formed by the two end parts of the sleeve (6) and from the plates (3), a gas is used to generate dynamic pressure in the thrust supports, the radial support has a tight play, a chamfered part is provided on the outer periphery of each end of the element (4) and another part chamfered is provided on the internal periphery of each end of the sleeve (6) creating an air gap (13) at each axial end of the radial support, a lubricating liquid is used to generate dynamic pressure in the radial support, small holes (8) are previst i in the peripheral surface of the element (4), and the lubricant is tight in the play of the support thanks to the air gaps (13).

ITTO930043 1993-03-03 1993-03-03 SUPPORT DEVICE IT231333Y1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
ITTO930043 IT231333Y1 (en) 1993-03-03 1993-03-03 SUPPORT DEVICE

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ITTO930043 IT231333Y1 (en) 1993-03-03 1993-03-03 SUPPORT DEVICE

Publications (3)

Publication Number Publication Date
ITTO930043V0 ITTO930043V0 (en) 1993-03-03
ITTO930043U1 true ITTO930043U1 (en) 1994-09-03
IT231333Y1 IT231333Y1 (en) 1999-08-02

Family

ID=11411038

Family Applications (1)

Application Number Title Priority Date Filing Date
ITTO930043 IT231333Y1 (en) 1993-03-03 1993-03-03 SUPPORT DEVICE

Country Status (1)

Country Link
IT (1) IT231333Y1 (en)

Also Published As

Publication number Publication date
IT231333Y1 (en) 1999-08-02
ITTO930043V0 (en) 1993-03-03

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Legal Events

Date Code Title Description
0001 Granted