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EP1846194B1 - Grinding disc shielding - Google Patents

Grinding disc shielding Download PDF

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Publication number
EP1846194B1
EP1846194B1 EP06706597A EP06706597A EP1846194B1 EP 1846194 B1 EP1846194 B1 EP 1846194B1 EP 06706597 A EP06706597 A EP 06706597A EP 06706597 A EP06706597 A EP 06706597A EP 1846194 B1 EP1846194 B1 EP 1846194B1
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EP
European Patent Office
Prior art keywords
grinding
grinding disc
cooling liquid
discharge nozzle
shield according
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.)
Not-in-force
Application number
EP06706597A
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German (de)
French (fr)
Other versions
EP1846194A1 (en
Inventor
Gerhard Schrottner
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Schrottner Gerhard
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Schrottner Gerhard
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Publication of EP1846194A1 publication Critical patent/EP1846194A1/en
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Publication of EP1846194B1 publication Critical patent/EP1846194B1/en
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B55/00—Safety 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
    • B24B55/04—Protective covers for the grinding wheel
    • B24B55/045—Protective covers for the grinding wheel with cooling means incorporated

Definitions

  • the invention relates to a grinding wheel shield for internally cooled grinding wheels, wherein the cooling liquid is discharged through recesses in the rotating grinding surface to the outside.
  • a discount is over SU872234A1 known.
  • the cooling fluid In internally cooled grinding wheels, the cooling fluid is supplied to internal cavities of the grinding wheel, from where the cooling fluid at high pressure through channels recesses in the rotating grinding surface is supplied and discharged to the outside. Thus, the cooling liquid exits the grinding surface in all directions.
  • the coolant volumes can be very large. For example, such a grinding wheel with 3000 revolutions per minute and a coolant pressure of 40 to 60 bar requires about 200 liters of liquid per minute.
  • the cooling effect of the cooling liquid is predominantly necessary at the grinding point at which the grinding wheel comes into contact with the workpiece to be machined. Thus, a considerable amount of coolant and associated pumping device is lost. The aim is to increase the cooling capacity with less effort.
  • a grinding wheel guard wherein a sector of the grinding wheel is covered by a steel sheet cover to prevent injury when parts of the grinding wheel or workpiece are thrown.
  • These mudguards capture a portion of the radiated coolant, but without thereby improving the cooling performance.
  • the subject invention is characterized in that the shield has a grinding wheel surrounding the grinding wheel over a sector collecting channel for the cooling liquid, wherein the collecting channel on the output side at least one Abstrahldüse has, with which the beam on the workpiece to be ground or the grinding point is steerable.
  • Fig. 1 shows the side view of a grinding wheel assembly with inventive grinding wheel shield.
  • Fig. 2 is a section through this arrangement.
  • Fig. 3 shows an oblique view of the output side end of the grinding wheel shield.
  • the 4 to 6 show details in different embodiments and Fig. 7 the oblique view of a further embodiment of the invention.
  • Fig. 1 the arrangement shows a grinding wheel 1 with the grinding surface 2 and the outlet openings 3 for the cooling liquid 4.
  • the cooling liquid passes under high pressure via the line 5 into the interior of the grinding wheel 1 and from there in an already proposed manner via a chamber system and channels to the outlet openings third
  • the grinding wheel 6 extends to the input 7 and output 8.
  • the grinding wheel 1 rotates in the direction of rotation 9 about the axis 10th
  • a rotating body 12 On the output side of the rotary handle 11 of a rotating body 12 can be seen, which sits in a recess of the grinding wheel 6, this protrudes and is rotatable by means of the rotary handle. Furthermore are in Fig. 1 the workpiece 13 and two partial streams 14, 15 of the cooling liquid 4 are shown. The one partial flow 15 flows along the grinding surface 2 of the grinding wheel 1 and the partial flow 14 radiates from the grinding wheel shield targeted to the grinding point 16.
  • the grinding wheel 1 runs in a collecting channel 17 whose clearance around the grinding wheel 1 is relatively small.
  • the gutter 17 extends over a portion of the circumference of the grinding wheel parallel to the grinding surface 2 and has an extension 18 in the direction of the outlet 8.
  • the extension 18 extends continuously from the gutter 6.
  • the rotary body 12 is provided with a catching chamber 19, from which a jet nozzle extends in the direction of the exit of the grinding wheel shield.
  • the collecting channel is guided past the rotating body along the grinding wheel, so that an exit slot 21 is formed.
  • the grinding fluid supplied to the grinding fluid is collected in the covered by the grinding wheel 6 shielding sector of the grinding wheel after exiting through the outlet openings 3 in the collecting channel 17 under high pressure and conveyed in the direction of the output 8.
  • the cooling liquid passes into the extension 18 and into the catching chamber 19. From there, the cooling liquid in a partial flow according to the partial flow 14 in Fig. 1 pressed through the spray nozzle 20.
  • Another partial stream can be entrained along the grinding surface 2 by the grinding wheel and emitted through the outlet slot 21.
  • the jet direction of the jet nozzle 20 can be aligned so that the partial beam 14 hits exactly the desired location of the workpiece 13.
  • Fig. 3 shows the exit of the grinding wheel shield, with the grinding wheel omitted.
  • the circumferential surface 22 has two parallel grooves 23 which serve to receive the cooling liquid in the collecting channel 17.
  • the radiating nozzle 20 is formed as a continuous slot.
  • an undercut groove 24 which serves to fasten by appropriate fastening means the grinding wheel 6 and adjustably position.
  • Fig. 4 shows the rotary body 12 in that embodiment in which he Fig. 3 is used.
  • the viewing direction goes into the catching chamber 19, from which the ejection nozzle 20 extends.
  • the Fig. 5 shows a side view of another embodiment of the rotating body, wherein the jet nozzle 20 includes three nozzle channels 25.
  • the rotary body has a branch line 27, which diverts the liquid flow or at least a partial flow out of the catching chamber 19 and feeds it to a conduit or an external radiating nozzle, not shown here.
  • a branch line 27 which diverts the liquid flow or at least a partial flow out of the catching chamber 19 and feeds it to a conduit or an external radiating nozzle, not shown here.
  • the Fig. 7 shows such an arrangement on a grinding wheel, wherein the cooling liquid is passed on both sides of the rotary body 12 out in two external radiating nozzles 26 so that they can perform the cooling liquid from another angular position.
  • Fig. 3 whose cross-sectional shape is at the discretion of the skilled person.
  • the cross-sectional shape of the gutter can for example be adapted to the cross-section of the grinding wheel, especially when profiles are ground.
  • the device according to the invention not only offers the advantage of better supply of coolant to the grinding point, but it also makes a separate flushing of the grinding surface of the grinding wheel unnecessary.
  • the grinding wheel shield is shown in the figures as a cast body. It can be made of plastic as well as metal. The production of sheet steel is also possible.
  • the term "cooling fluid” used here encompasses all fluids, for example also lubricants, which are supplied to the grinding surface and / or the workpiece in grinding wheel arrangements.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Grinding-Machine Dressing And Accessory Apparatuses (AREA)

Abstract

The invention relates to an internally cooled grinding disc shielding (16), wherein a cooling liquid (14) outwardly flows thorough a recess embodied in the peripheral surface of a grinding disk, the shielding is provided with a collecting groove (17) for the cooling liquid (14) which surrounds the grinding disc (1) under a sector comprises at least one discharge nozzle (20) which is arranged on the output side and by means of which a jet is directed to a work piece (13) or to a grinding point (16).

Description

Die Erfindung betrifft eine Schleifscheibenabschirmung für innengekühlte Schleifscheiben, wobei die Kühlflüssigkeit durch Ausnehmungen in der umlaufenden Schleiffläche nach Außen abgegeben wird. Eine solche Abschrirnung ist aus SU872234A1 bekannt.The invention relates to a grinding wheel shield for internally cooled grinding wheels, wherein the cooling liquid is discharged through recesses in the rotating grinding surface to the outside. Such a discount is over SU872234A1 known.

Bei innengekühlten Schleifscheiben wird die Kühlflüssigkeit innenliegenden Hohlräumen der Schleifscheibe zugeführt, von wo die Kühlflüssigkeit mit hohem Druck durch Kanäle Ausnehmungen in der umlaufenden Schleiffläche zugeführt und nach Außen abgegeben wird. Somit tritt die Kühlflüssigkeit von der Schleiffläche nach allen Seiten aus. Bei großen Schleifscheiben von beispielsweise 400mm Durchmesser können die Kühlflüssigkeitsmengen sehr groß sein. So benötigt zB eine solche Schleifscheibe mit 3000 Umdrehungen pro Minute und einem Kühlflüssigkeitsdruck von 40 bis 60 Bar etwa 200 Liter Flüssigkeit pro Minute. Die Kühlwirkung der Kühlflüssigkeit ist aber überwiegend am Schleifpunkt notwendig, an welchem die Schleifscheibe mit dem zu bearbeitenden Werkstück in Kontakt tritt. Somit geht ein erheblicher Aufwand an Kühlflüssigkeit und der damit verbundenen Pumpeinrichtung verloren. Ziel ist es, die Kühlleistung bei geringerem Aufwand zu erhöhen.In internally cooled grinding wheels, the cooling fluid is supplied to internal cavities of the grinding wheel, from where the cooling fluid at high pressure through channels recesses in the rotating grinding surface is supplied and discharged to the outside. Thus, the cooling liquid exits the grinding surface in all directions. For large grinding wheels, for example, 400mm diameter, the coolant volumes can be very large. For example, such a grinding wheel with 3000 revolutions per minute and a coolant pressure of 40 to 60 bar requires about 200 liters of liquid per minute. However, the cooling effect of the cooling liquid is predominantly necessary at the grinding point at which the grinding wheel comes into contact with the workpiece to be machined. Thus, a considerable amount of coolant and associated pumping device is lost. The aim is to increase the cooling capacity with less effort.

Bekannt und gesetzlich auch vorgeschrieben ist ein Schleifscheibenschutz, wobei ein Sektor der Schleifscheibe durch eine Abdeckung aus Stahlblech abgedeckt ist, um Verletzungen zu verhindern, wenn Teile der Schleifscheibe oder des Werkstücks fortgeschleudert werden. Diese Schutzbleche fangen einen Teil der abgestrahlten Kühlflüssigkeit auf, ohne jedoch damit die Kühlleistung zu verbessern.Also known and required by law is a grinding wheel guard wherein a sector of the grinding wheel is covered by a steel sheet cover to prevent injury when parts of the grinding wheel or workpiece are thrown. These mudguards capture a portion of the radiated coolant, but without thereby improving the cooling performance.

Die gegenständliche Erfindung ist dadurch gekennzeichnet, dass die Abschirmung eine die Schleifscheibe über einen Sektor umgebende Auffangrinne für die Kühlflüssigkeit aufweist, wobei die Auffangrinne ausgangsseitig wenigstens eine Abstrahldüse aufweist, mit der der Strahl auf das zu schleifende Werkstück oder den Schleifpunkt lenkbar ist. Weitere vorteilhafte Merkmale sind der nachstehenden Beschreibung, den Zeichnungen und den Patentansprüchen zu entnehmen.The subject invention is characterized in that the shield has a grinding wheel surrounding the grinding wheel over a sector collecting channel for the cooling liquid, wherein the collecting channel on the output side at least one Abstrahldüse has, with which the beam on the workpiece to be ground or the grinding point is steerable. Further advantageous features are described in the following description, the drawings and the claims.

Nachfolgend wird die Erfindung anhand einiger Ausführungsbeispiele näher erläutert. Fig. 1 zeigt die Seitenansicht einer Schleifscheibenanordnung mit erfindungsgemäßer Schleifscheibenabschirmung. Fig. 2 ist ein Schnitt durch diese Anordnung. Fig. 3 zeigt in Schrägansicht das ausgangsseitige Ende der Schleifscheibenabschirmung. Die Fig. 4 bis 6 zeigen Details in verschiedenen Ausführungsformen und Fig. 7 die Schrägansicht auf eine weitere Ausführung der Erfindung.The invention will be explained in more detail with reference to some embodiments. Fig. 1 shows the side view of a grinding wheel assembly with inventive grinding wheel shield. Fig. 2 is a section through this arrangement. Fig. 3 shows an oblique view of the output side end of the grinding wheel shield. The 4 to 6 show details in different embodiments and Fig. 7 the oblique view of a further embodiment of the invention.

Gemäß Fig. 1 zeigt die Anordnung eine Schleifscheibe 1 mit der Schleiffläche 2 und den Austrittsöffnungen 3 für die Kühlflüssigkeit 4. Die Kühlflüssigkeit gelangt unter hohem Druck über die Leitung 5 in den Innenraum der Schleifscheibe 1 und von dort in bereits vorgeschlagener Weise über ein Kammersystem und Kanäle zu den Austrittsöffnungen 3.According to Fig. 1 the arrangement shows a grinding wheel 1 with the grinding surface 2 and the outlet openings 3 for the cooling liquid 4. The cooling liquid passes under high pressure via the line 5 into the interior of the grinding wheel 1 and from there in an already proposed manner via a chamber system and channels to the outlet openings third

Über einen Sektor der Schleifscheibe erstreckt sich die Schleifscheibenabschirmung 6 mit dem Eingang 7 und Ausgang 8. Die Schleifscheibe 1 dreht sich in Drehrichtung 9 um die Achse 10.About a sector of the grinding wheel, the grinding wheel 6 extends to the input 7 and output 8. The grinding wheel 1 rotates in the direction of rotation 9 about the axis 10th

Ausgangsseitig ist der Drehgriff 11 eines Drehkörpers 12 zu sehen, der in einer Ausnehmung der Schleifscheibenabschirmung 6 sitzt, diese durchragt und mittels des Drehgriffs verdrehbar ist. Weiters sind in Fig. 1 das Werkstück 13 und zwei Teilströme 14, 15 der Kühlflüssigkeit 4 dargestellt. Der eine Teilstrom 15 fließt entlang der Schleiffläche 2 der Schleifscheibe 1 und der Teilstrom 14 strahlt aus der Schleifscheibenabschirmung gezielt auf den Schleifpunkt 16.On the output side of the rotary handle 11 of a rotating body 12 can be seen, which sits in a recess of the grinding wheel 6, this protrudes and is rotatable by means of the rotary handle. Furthermore are in Fig. 1 the workpiece 13 and two partial streams 14, 15 of the cooling liquid 4 are shown. The one partial flow 15 flows along the grinding surface 2 of the grinding wheel 1 and the partial flow 14 radiates from the grinding wheel shield targeted to the grinding point 16.

In der Schnittdarstellung gemäß Fig. 2 ist die innere Ausgestaltung der Anordnung zu erkennen. Die Schleifscheibe 1 ist insoweit nur schematisch dargestellt als die Kammern und Kanäle für die Verteilung und Zufuhr der Kühlflüssigkeit nicht dargestellt sind. Wichtig ist hier nur, dass die in das Innere der Schleifscheibe zugeführte Kühlflüssigkeit über diese Kammem und Kanäle den Austrittsöffnungen 3 zugeführt wird, von wo die Flüssigkeit annähernd radial abgestrahlt wird.In the sectional view according to Fig. 2 the inner configuration of the arrangement can be seen. The grinding wheel 1 is so far only shown schematically as the chambers and channels for the distribution and supply of the cooling liquid are not shown. It is important here only that the supplied into the interior of the grinding wheel coolant is supplied through these Kammem and channels the outlet openings 3, from where the liquid is radiated approximately radially.

Im Bereich der Schleifscheibenabschirmung 6 läuft die Schleifscheibe 1 in einer Auffangrinne 17, deren lichte Weite um die Schleifscheibe 1 relativ gering ist. Die Auffangrinne 17 verläuft über einen Teil des Umfangs der Schleifscheibe parallel zur Schleiffläche 2 und weist in Richtung zum Ausgang 8 eine Erweiterung 18 auf. Die Erweiterung 18 erstreckt sich von der Auffangrinne 6 stetig verlaufend. Im Bereich der Erweiterung 18 befindet sich der Drehkörper 12 mit einer Fangkammer 19, von der sich eine Abstrahldüse in Richtung zum Ausgang der Schleifscheibenabschirmung erstreckt. In Fig. 2 ist weiters zu sehen, dass am Ausgang 8 die Auffangrinne am Drehkörper entlang der Schleifscheibe vorbeigeführt ist, sodass ein Austrittsschlitz 21 gebildet ist.In the area of the grinding wheel shield 6, the grinding wheel 1 runs in a collecting channel 17 whose clearance around the grinding wheel 1 is relatively small. The gutter 17 extends over a portion of the circumference of the grinding wheel parallel to the grinding surface 2 and has an extension 18 in the direction of the outlet 8. The extension 18 extends continuously from the gutter 6. In the region of the extension 18, the rotary body 12 is provided with a catching chamber 19, from which a jet nozzle extends in the direction of the exit of the grinding wheel shield. In Fig. 2 It can further be seen that at the exit 8, the collecting channel is guided past the rotating body along the grinding wheel, so that an exit slot 21 is formed.

Die der Schleifscheibe zugeführte Kühlflüssigkeit wird in dem von der Schleifscheibenabschirmung 6 überdeckten Sektor der Schleifscheibe nach dem Austritt durch die Austrittsöffnungen 3 in der Auffangrinne 17 unter hohem Druck aufgefangen und in Richtung zum Ausgang 8 gefördert. Die Kühlflüssigkeit gelangt in die Erweiterung 18 und in die Fangkammer 19. Von dort wird die Kühlflüssigkeit in einem Teilstrom gemäß dem Teilstrom 14 in Fig. 1 durch die Abstrahldüse 20 gepresst. Ein anderer Teilstrom kann entlang der Schleiffläche 2 von der Schleifscheibe mitgerissen und durch den Austrittsschlitz 21 abgestrahlt werden.The grinding fluid supplied to the grinding fluid is collected in the covered by the grinding wheel 6 shielding sector of the grinding wheel after exiting through the outlet openings 3 in the collecting channel 17 under high pressure and conveyed in the direction of the output 8. The cooling liquid passes into the extension 18 and into the catching chamber 19. From there, the cooling liquid in a partial flow according to the partial flow 14 in Fig. 1 pressed through the spray nozzle 20. Another partial stream can be entrained along the grinding surface 2 by the grinding wheel and emitted through the outlet slot 21.

Durch entsprechendes Verdrehen des Drehkörpers 12 kann die Strahlrichtung der Abstrahldüse 20 so ausgerichtet werden, dass der Teilstrahl 14 genau auf die gewünschte Stelle des Werkstücks 13 trifft.By corresponding rotation of the rotary body 12, the jet direction of the jet nozzle 20 can be aligned so that the partial beam 14 hits exactly the desired location of the workpiece 13.

Fig. 3 zeigt den Ausgang der Schleifscheibenabschirmung, wobei die Schleifscheibe fortgelassen wurde. Die umlaufende Fläche 22 weist zwei parallele Nuten 23 auf, die der Aufnahme der Kühlflüssigkeit in der Auffangrinne 17 dienen. Die Abstrahldüse 20 ist als ein durchgehender Schlitz ausgebildet. Fig. 3 shows the exit of the grinding wheel shield, with the grinding wheel omitted. The circumferential surface 22 has two parallel grooves 23 which serve to receive the cooling liquid in the collecting channel 17. The radiating nozzle 20 is formed as a continuous slot.

An der außenliegenden Fläche der Schleifscheibenabschirmung 6 befindet sich umlaufend eine hinterschnittene Nut 24, die dazu dient durch entsprechende Befestigungsmittel die Schleifscheibenabschirmung 6 zu befestigen und verstellbar zu positionieren.On the outer surface of the grinding wheel 6 is located circumferentially an undercut groove 24 which serves to fasten by appropriate fastening means the grinding wheel 6 and adjustably position.

Fig. 4 zeigt den Drehkörper 12 in jener Ausführung in der er in Fig. 3 eingesetzt ist. Die Blickrichtung geht in die Fangkammer 19 hinein, von der sich die Abstrahldüse 20 erstreckt. Fig. 4 shows the rotary body 12 in that embodiment in which he Fig. 3 is used. The viewing direction goes into the catching chamber 19, from which the ejection nozzle 20 extends.

Die Fig. 5 zeigt in einer Seitenansicht eine andere Ausführungsform des Drehkörpers, wobei die Abstrahldüse 20 drei Düsenkanäle 25 umfasst.The Fig. 5 shows a side view of another embodiment of the rotating body, wherein the jet nozzle 20 includes three nozzle channels 25.

In einer weiteren Ausführungsform gemäß Fig. 6 weist der Drehkörper eine Abzweigleitung 27 auf, die den Flüssigkeitsstrom oder zumindest einen Teilstrom aus der Fangkammer 19 ableitet und einem hier nicht dargestellten Leitungsrohr oder einer externen Abstrahldüse zuleitet. Damit ist es möglich, weitere gezielte Kühlmittelströme auf dem Werkstück oder auf die Schleiffläche zu verteilen. Die Fig. 7 zeigt eine solche Anordnung an einer Schleifscheibe, wobei die Kühlflüssigkeit an beiden Seiten aus dem Drehkörper 12 heraus in zwei externe Abstrahldüsen 26 geleitet wird, sodass diese die Kühlflüssigkeit aus anderer Winkelstellung zuführen können.In a further embodiment according to Fig. 6 For example, the rotary body has a branch line 27, which diverts the liquid flow or at least a partial flow out of the catching chamber 19 and feeds it to a conduit or an external radiating nozzle, not shown here. This makes it possible to distribute more targeted coolant flows on the workpiece or on the grinding surface. The Fig. 7 shows such an arrangement on a grinding wheel, wherein the cooling liquid is passed on both sides of the rotary body 12 out in two external radiating nozzles 26 so that they can perform the cooling liquid from another angular position.

Bezüglich der Auffangrinne wie sie beispielsweise in Fig. 3 dargestellt ist, liegt deren Querschnittsform im Belieben des Fachmannes. Die Querschnittsform der Auffangrinne kann zB dem Querschnitt der Schleifscheibe angepasst werden, insbesondere wenn Profile geschliffen werden.Regarding the gutter as they are for example in Fig. 3 is shown, whose cross-sectional shape is at the discretion of the skilled person. The cross-sectional shape of the gutter can for example be adapted to the cross-section of the grinding wheel, especially when profiles are ground.

Die erfindungsgemäße Vorrichtung bietet nicht nur den Vorteil der besseren Zuführung von Kühlmittel zum Schleifpunkt, sondern sie macht auch ein getrenntes Freispülen der Schleiffläche der Schleifscheibe unnötig.The device according to the invention not only offers the advantage of better supply of coolant to the grinding point, but it also makes a separate flushing of the grinding surface of the grinding wheel unnecessary.

Die Schleifscheibenabschirmung ist in den Figuren als Gusskörper dargestellt. Sie kann sowohl aus Kunststoff als auch aus Metall bestehen. Die Herstellung aus Stahlblech ist ebenfalls möglich. Der hier verwendete Begriff "Kühlflüssigkeit" umfasst alle Flüssigkeiten, zB auch Schmiermittel, die bei Schleifscheibenanordnungen der Schleiffläche und/oder dem Werkstück zugeführt werden.The grinding wheel shield is shown in the figures as a cast body. It can be made of plastic as well as metal. The production of sheet steel is also possible. The term "cooling fluid" used here encompasses all fluids, for example also lubricants, which are supplied to the grinding surface and / or the workpiece in grinding wheel arrangements.

Claims (9)

  1. Grinding disc shield for internally cooled grinding discs, the cooling liquid being delivered outwardly through recesses in the rotating grinding face, characterised in that the shield (6) has, surrounding the grinding disc (1) over one sector, a collecting groove (17) for the cooling liquid (4) and in that the collecting groove has, on the outlet side, at least one discharge nozzle (20, 26) by which a jet is directable onto the workpiece (13) to be ground or onto the grinding point (16).
  2. Grinding disc shield according to claim 1, characterised in that the collecting groove (17) has a widened portion (18) by which the cooling liquid is guided to the discharge nozzle (20, 26).
  3. Grinding disc shield according to claim 2, characterised in that the discharge nozzle (20, 26) is arranged in a rotary body (12) which is rotatably supported in the shield (6), as a result of which the jet direction is adjustable.
  4. Grinding disc shield according to any one of claims 1 to 3, characterised in that the rotary body (12) has a collecting chamber (19) which is open towards the widened portion of the collecting groove (17) and from which the discharge nozzle (20, 26) is fed with the cooling liquid.
  5. Grinding disc shield according to any one of claims 1 to 4, characterised in that the collecting groove (17) is guided on the outlet side past the rotary body (12) to an outflow slot (21), so that one sub-stream (15) of the cooling liquid is entrained along the grinding face (2) and the other sub-stream (14) is discharged by way of the discharge nozzle (20, 26).
  6. Grinding disc shield according to any one of claims 1 to 5, characterised in that the rotary body (12) has a turning handle (11).
  7. Grinding disc shield according to any one of claims 1 to 6, characterised in that the discharge nozzle (20, 26) has several nozzle channels (25).
  8. Grinding disc shield according to any one of claims 1 to 7, characterised in that the rotary body (12) has at least one branch duct (27) in order to conduct the stream or a sub-stream of the cooling liquid to a conduit or an external discharge nozzle (26).
  9. Grinding disc shield according to any one of claims 1 to 8, characterised in that the widened portion (18) extends continuously from the collecting groove (17).
EP06706597A 2005-02-09 2006-02-03 Grinding disc shielding Not-in-force EP1846194B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT0021005A AT502444B1 (en) 2005-02-09 2005-02-09 WHEEL SHIELD
PCT/EP2006/000928 WO2006084630A1 (en) 2005-02-09 2006-02-03 Grinding disc shielding

Publications (2)

Publication Number Publication Date
EP1846194A1 EP1846194A1 (en) 2007-10-24
EP1846194B1 true EP1846194B1 (en) 2011-10-12

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EP06706597A Not-in-force EP1846194B1 (en) 2005-02-09 2006-02-03 Grinding disc shielding

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US (1) US7959498B2 (en)
EP (1) EP1846194B1 (en)
AT (2) AT502444B1 (en)
WO (1) WO2006084630A1 (en)

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KR101943258B1 (en) * 2017-09-08 2019-01-30 시오 컴퍼니 리미티드 Nozzle, nozzle fixing structure, and nozzle assembly
CN109366361A (en) * 2018-11-30 2019-02-22 江苏盛航精密制造有限公司 A kind of auto parts and components polishing protective device
CN109571264B (en) * 2018-12-28 2020-12-08 浙江兰博生物科技股份有限公司 Safe and environment-friendly grinding device based on production of high polymer chemical materials

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AT502444B1 (en) 2008-09-15
AT502444A1 (en) 2007-03-15
US20080318502A1 (en) 2008-12-25
WO2006084630A1 (en) 2006-08-17
EP1846194A1 (en) 2007-10-24
US7959498B2 (en) 2011-06-14
ATE528109T1 (en) 2011-10-15

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