BE544092A - - Google Patents

Info

Publication number
BE544092A
BE544092A BE544092DA BE544092A BE 544092 A BE544092 A BE 544092A BE 544092D A BE544092D A BE 544092DA BE 544092 A BE544092 A BE 544092A
Authority
BE
Belgium
Prior art keywords
grinding wheel
shaft
chambers
helical groove
desc
Prior art date
Application number
Other languages
French (fr)
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.)
Publication of BE544092A publication Critical patent/BE544092A/fr
Priority claimed from US483697A external-priority patent/US2745229A/en

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B24GRINDING; POLISHING
    • B24DTOOLS FOR GRINDING, BUFFING OR SHARPENING
    • B24D5/00Bonded abrasive wheels, or wheels with inserted abrasive blocks, designed for acting only by their periphery; Bushings or mountings therefor
    • B24D5/10Bonded abrasive wheels, or wheels with inserted abrasive blocks, designed for acting only by their periphery; Bushings or mountings therefor with cooling provisions, e.g. with radial slots
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23FMAKING GEARS OR TOOTHED RACKS
    • B23F23/00Accessories or equipment combined with or arranged in, or specially designed to form part of, gear-cutting machines
    • B23F23/12Other devices, e.g. tool holders; Checking devices for controlling workpieces in machines for manufacturing gear teeth
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23QDETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
    • B23Q1/00Members which are comprised in the general build-up of a form of machine, particularly relatively large fixed members
    • B23Q1/0009Energy-transferring means or control lines for movable machine parts; Control panels or boxes; Control parts
    • B23Q1/0018Energy-transferring means or control lines for movable machine parts; Control panels or boxes; Control parts comprising hydraulic means
    • B23Q1/0027Energy-transferring means or control lines for movable machine parts; Control panels or boxes; Control parts comprising hydraulic means between moving parts between which an uninterrupted energy-transfer connection is maintained
    • B23Q1/0036Energy-transferring means or control lines for movable machine parts; Control panels or boxes; Control parts comprising hydraulic means between moving parts between which an uninterrupted energy-transfer connection is maintained one of those parts being a tool
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B24GRINDING; POLISHING
    • B24BMACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B55/00Safety devices for grinding or polishing machines; Accessories fitted to grinding or polishing machines for keeping tools or parts of the machine in good working condition
    • B24B55/02Equipment for cooling the grinding surfaces, e.g. devices for feeding coolant

Description

       

   <Desc/Clms Page number 1> 
 



    L'invention   concerne les seules du type   où.   un   liouide   de 
 EMI1.1 
 ri'roic.issement passe par les pores du corps de la meule 1. lr snrfrre de moulage periphérioue de celle-ci..JUS0U' ici des m?1J.lr>:'; de ce p'C'n1:'G ont cté fabriquées, où le liquide réfrigérant, .toi nue de l'eau, était   amené à   la meule radialement à   l'extérieur   de sa fixation sur   l'arbre   rotatif. L'eau pénétrant dans les pores de la meule en ce point était chassée vers l'extérieur par   l'action   de la force centrifuge dont on se servait pour   1-*amener   jusqu'à   le.   
 EMI1.2 
 surface de 17:eul<..se.

   Toutefois il n'y avait pas d'autre force nue la. capillarité pour faire pénétrer l'eau dans le corps et pur rr,nHcn.l.(,l1 la Quantité nui /t :.it ara=e , la: surface de .mE:ulc.e '!J011V2it Rtr.'.:>   impropre à produire un refroidissement suffisant.   

 <Desc/Clms Page number 2> 

 



   Un but de la présente invention est de procurer une   const@@@-   tion oà un volume beaucoup   plus- considérât?  e e liquide soit introduit dans le corps de la meule et   ame@é   vers l'extérieur juseu'à la surface de meulage, sous une pression qui s'ajoute à la force centrifuge. A cet effet l'invention consiste dans la construction décrite ci-après. 



   Dans les dessins annexés: 
Fig. 1 est une coupe transversale axiale de la meule et de son arbre, auxquels est appliqué le dispositif perfectionné suivant l'invention pour l'introduction de l'eau de refroidissement. 



   Fig. 2 est une coupe transversale suivant la ligne 2-2 de la Fig. 1. 



   La meule A est, comme il a été dit ci-dessus, suffisamment poreuse pour contenir le liquide de refroidissement- Cette meule est montée sur un arbre B et y est fixée par des plaques de serrage C et C' et un écrou D vissé sur une partie de l'arbre, les éléments tels qu'ils sont ainsi décrits étant de toute construction appropriée Pour introduire le liquide de refroidissement dans le corps de la me le. on ménage dans l'arbre une chambre centrale E qui est reliée par d s lumières radiales F à une rainure   hélicoïdale   G formée dans      la partie de sa surface externe qui se trouve en contact avec la meule A. Les plaques de serrage C et C' sont creusées en C2, C3 pour former des chambres reliées à la rainure hélicoïdale G.

   Ces chambres sont obturées de façon à empêcher le liquide de s'en échapper sauf par les pores de la   meule;   au moyen de bagues. d'étanchéité H et H', dont la première est disposée entre les chambres et la périphérie des plaques et la seconde entre ces   pla@ues   et   l'arbre*   A l'extrémité extérieure de celui-ci est fixée par vissage une rallonge creuse I. Cette dernière est entourée d'une pièce non rotative J avec intercalation de roulements billes K et K'. Un   bourrppe   ou de la   natiëre   de garniture L empêche le   p@  ssage du liquide entre ces éléments.

   Dans la   p@   rtie   -le   la pièce J située son extrémité extérieure est ménagée une chambre J, qui 

 <Desc/Clms Page number 3> 

 
 EMI3.1 
 co ::.nr...ninue avec l'espace intérieur de la pièce creuse I. Un conduit 1,1 relié à la pièce J et C#!L11lunicu<:'.nt avec le. chambre J' rif-ne ,:1", l'eau ou un autre liquide de refroidissement aune présston s1rè Quelconque dans la chambre E. De celle-ci le liruide passe ['é'!' l' conduits radiaux F dans la rainure hélicoïdale G d'oà il 1)<: $- ro Tn sens opposés dans les chambres C2 et Cl Celles-ci recouvrent des parties de la surface latérale de la meule et la rainure   hélicoïdale   est adjacente à la surface de la meule en contact avec son arbre.

   Ainsi, la pression chasse le liquide dans le corps de la meule à une vitesse relativement élevée, suffisante pour assurer le refroidissement convenable de la surface de meulage. 



   REVENDICATIONS 
1.- Meule à refroidissement par liquide caractérisée en ce qu'elle comprend un corps de meule suffisamment poreux pour permettre le passage du liquide au travers, un arbre rotatif creux sur   leouel   le corps de meule est monté et.qui présente une rainure hélicoïdale dans la partie de sa surface entourée par le corps 
 EMI3.2 
 de meule, des lumières radiales mettant cette rainure en cOT!rr1.miet.- tion avec l'espace intérieur de l'arbre, des plaques de 'serrage de pert et d'autre du corps de meule et creusées pour former des 
 EMI3.3 
 chambres en communication avec la rainure hélicoïdale, un disponiti détnnchéité entre le corps'de meule et les plaques .de serrage à la périphérie de ces chambres et aussi entre ces plaques et      l'arbre,

   et un raccord à l'extrémité extérieure de l'arbre pour l'introduction de   liquide 03   refroidissement sous pression.



   <Desc / Clms Page number 1>
 



    The invention relates only to the type where. a liouide of
 EMI1.1
 ri'roic.issement passes through the pores of the body of the grinding wheel 1. lr snrfrre periphérioue molding of this one..JUS0U 'here of the m? 1J.lr>:'; of this p'C'n1: 'G were manufactured, where the coolant, bare water, was brought to the grinding wheel radially outside of its attachment on the rotating shaft. The water entering the pores of the grinding wheel at this point was driven out by the action of the centrifugal force which was used to bring up to the.
 EMI1.2
 area of 17: eul <.. se.

   However, there was no other naked force there. capillarity to make water penetrate into the body and pure rr, nHcn.l. (, l1 the Quantity nui / t: .it ara = e, the: surface of .mE: ulc.e '! J011V2it Rtr.'. :> unsuitable for producing sufficient cooling.

 <Desc / Clms Page number 2>

 



   An object of the present invention is to provide a construction at a much larger volume. The liquid is introduced into the body of the grinding wheel and blown outwards to the grinding surface, under a pressure which is added to the centrifugal force. To this end, the invention consists of the construction described below.



   In the accompanying drawings:
Fig. 1 is an axial cross section of the grinding wheel and its shaft, to which is applied the improved device according to the invention for the introduction of cooling water.



   Fig. 2 is a cross section taken on line 2-2 of FIG. 1.



   The grinding wheel A is, as said above, sufficiently porous to contain the coolant - This grinding wheel is mounted on a shaft B and is fixed to it by clamping plates C and C 'and a nut D screwed on part of the shaft, the elements as thus described being of any suitable construction to introduce the coolant into the body of the me. a central chamber E is provided in the shaft which is connected by radial openings F to a helical groove G formed in the part of its external surface which is in contact with the grinding wheel A. The clamping plates C and C 'are hollowed out in C2, C3 to form chambers connected to the helical groove G.

   These chambers are sealed so as to prevent the liquid from escaping except through the pores of the grinding wheel; by means of rings. sealing H and H ', the first of which is arranged between the chambers and the periphery of the plates and the second between these plates and the shaft * At the outer end of the latter is fixed by screwing a hollow extension I. The latter is surrounded by a non-rotating part J with intercalation of ball bearings K and K '. A swelling or the filling material L prevents the weighing of the liquid between these elements.

   In the p @ rtie -le room J located at its outer end is provided a room J, which

 <Desc / Clms Page number 3>

 
 EMI3.1
 co ::. nr ... ninue with the interior space of the hollow part I. A conduit 1,1 connected to the part J and C #! L11lunicu <: '. nt with the. chamber J 'rif-ne,: 1 ", water or some other coolant with a presston s1rè Anything in chamber E. From this the fluid passes [' é '!' the radial ducts F in the helical groove G hence it 1) <: $ - ro Tn opposite directions in the chambers C2 and Cl These cover parts of the side surface of the grinding wheel and the helical groove is adjacent to the surface of the grinding wheel in contact with its shaft.

   Thus, the pressure forces the liquid into the body of the grinding wheel at a relatively high speed, sufficient to ensure proper cooling of the grinding surface.



   CLAIMS
1.- Liquid-cooled grinding wheel characterized in that it comprises a sufficiently porous grinding wheel body to allow liquid to pass through it, a hollow rotary shaft on which the grinding wheel body is mounted and which has a helical groove in it. the part of its surface surrounded by the body
 EMI3.2
 of the grinding wheel, radial slots putting this groove in cot! rr1.miet.- tion with the interior space of the shaft, clamping plates on both sides of the grinding wheel body and hollowed out to form
 EMI3.3
 chambers in communication with the helical groove, a definite availability between the grinding wheel body and the clamping plates at the periphery of these chambers and also between these plates and the shaft,

   and a connection at the outer end of the shaft for the introduction of coolant 03 under pressure.


    

Claims (1)

2. - Dispositif suivant la .revendication 1, caractérisé en EMI3.4 ce c;ie le raccord comprend une rpllonpe tubulaire de petit diamètre de l'arbre rotatif, un manchon non rotatif entourant cette ra.l7¯onre <Desc/Clms Page number 4> et relié à la source de liouide sous pression, un coussinet antifriction entre cette rallonge et le manchon, et un dispositif détanchéité pour empêcher les fuites de liquide par ce coussinet- 2. - Device according to .revendication 1, characterized in EMI3.4 This c; ie the fitting comprises a tubular repllonpe of small diameter of the rotating shaft, a non-rotating sleeve surrounding this ra.l7¯onre <Desc / Clms Page number 4> and connected to the source of pressurized fluid, an anti-friction pad between this extension and the sleeve, and a sealing device to prevent liquid leaks through this pad-
BE544092D 1955-01-24 BE544092A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US325569XA 1955-01-24 1955-01-24
US483697A US2745229A (en) 1955-01-24 1955-01-24 Liquid cooled grinder wheel

Publications (1)

Publication Number Publication Date
BE544092A true BE544092A (en)

Family

ID=34656565

Family Applications (1)

Application Number Title Priority Date Filing Date
BE544092D BE544092A (en) 1955-01-24

Country Status (2)

Country Link
BE (1) BE544092A (en)
CH (1) CH325569A (en)

Also Published As

Publication number Publication date
CH325569A (en) 1957-11-15

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