EP1908862B1 - Shaft drive for a loom - Google Patents
Shaft drive for a loom Download PDFInfo
- Publication number
- EP1908862B1 EP1908862B1 EP06021001A EP06021001A EP1908862B1 EP 1908862 B1 EP1908862 B1 EP 1908862B1 EP 06021001 A EP06021001 A EP 06021001A EP 06021001 A EP06021001 A EP 06021001A EP 1908862 B1 EP1908862 B1 EP 1908862B1
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- EP
- European Patent Office
- Prior art keywords
- cam
- section
- shaft
- drive
- gear
- 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
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Classifications
-
- D—TEXTILES; PAPER
- D03—WEAVING
- D03C—SHEDDING MECHANISMS; PATTERN CARDS OR CHAINS; PUNCHING OF CARDS; DESIGNING PATTERNS
- D03C5/00—Cam or other direct-acting shedding mechanisms, i.e. operating heald frames without intervening power-supplying devices
- D03C5/02—Cam or other direct-acting shedding mechanisms, i.e. operating heald frames without intervening power-supplying devices operated by rotating cams
Definitions
- the invention relates to a transmission for a loom.
- the DE 1 535 221 A1 describes a dobby of a loom.
- the Schaftmaschiene far more connected via gearbox with a common driven shaft Wellenanodnungen on.
- the shaft assemblies each consist of a permanently coupled to the driven shaft Drive section, which can be coupled via a coupling with a Kurvenlyanisme.
- On the cam carrier section sits a cam, which serves to move an associated weaving shank.
- Each weave of the loom is associated with a shaft assembly with a cam.
- a shaft gear which comprises a gear rack with a rotatably mounted shaft carrying a plurality of cams.
- the cams are associated with cam follower means which operate rockers.
- On the wings of a linkage for transmitting the drive movement is connected to the respective weaving shank.
- the shaft is driven via a bevel gear, which is formed by a ring gear and a bevel gear, by a drive shaft which is connected to a prime mover.
- each cam determines the shape of the vibration of the associated heald. Occasionally the task is to change the form of the movement. For this purpose, the cams must be replaced.
- the above-mentioned document proposes to provide the shaft at its end remote from the angular gear with a removable end piece which is mounted in a bearing device, which in turn is releasably held on the gear frame. If the cams are to be replaced, the bearing device is released from the gear frame. Furthermore, the tail is released from the shaft. Thereafter, the existing end piece and bearing unit can be removed, leaving a narrow gap between the free end of the shaft and the gear rack. Through this single, axially withdrawn from the shaft cams from the Gearbox removed and reversed new cams are applied to the shaft.
- the shaft gear according to the invention uses as a shaft for a plurality of cams a shaft arrangement, which can also be regarded as a split shaft.
- the shaft is thus subdivided into a cam carrier section and a drive section which, in use, are non-rotatably connected to one another at a separation point, for example by means of a suitable coupling device, and are preferably connected to one another in a bending-resistant manner. If one or more cams are to be exchanged, the cam carrier section and the drive section of the shaft arrangement are separated from one another. While the cam carrier portion and the cams may be removed from the gear rack, the drive portion may remain in the stem gear. Therefore, the gears of the gear train remain engaged with each other. After reassembly, the existing backlash of the gears, which has been kept very accurately, must not be readjusted.
- a plurality of cams are provided which form a package which is releasably connected to the cam carrier portion.
- the cams can sit on a bush, which is axially slidably connected to the cam carrier portion but rotatably connected.
- the cam carrier section can then be pulled axially during disassembly out of the package of cams, after which the cams or the package formed from the cams can be taken laterally out of the installation space.
- the drive section of the shaft assembly is preferably associated with at least one bearing device which is arranged between the separation point and the gear. It holds the drive section in the gear rack while the cam carrier section and cams may be taken out of the gear rack.
- the drive portion forms only a short, little or not beyond the bearing means out standing stub shaft.
- the separation point or coupling device is thus preferably arranged directly next to the bearing device, which is arranged between the cam plate and the gear. This can be done by removing the Cam carrier section of the free space between the two storage facilities along the entire length of the cam disc set are made free.
- the cam carrier section is preferably held axially displaceably in a bearing device.
- the axial position of the shaft assembly is preferably determined by the bearing means between the cam and gear. After releasing the separation point between the cam carrier section and the drive section, the cam carrier section can be pulled axially out of its bearing device.
- the disassembly and assembly of the shaft assembly is particularly simple.
- a coupling device is preferably provided which may be designed as a friction-locked and / or as a positive-locking coupling.
- the coupling device may include a backlash-free frictional coupling, e.g. be in the form of a cone clutch.
- a tightening screw or other suitable tensioning means can secure the cam carrier section and the drive section to one another and thus hold the coupling device in the engaged state.
- a suitable Abdschreibstoffstoff allows, if necessary, the separation of the cone connection.
- the coupling device can be designed as a positive toothed coupling.
- FIG. 1 is a belonging to a loom arrangement consisting of a weaving shank 1, a drive serving him linkage 2 and a shaft gear 3 illustrated.
- the shaft gear 3 has, for each heald shaft to be driven, a rocker 4 which, as indicated by an arrow 5, performs a swinging reciprocating movement which is transmitted to the heald 1 via the linkage 2.
- the shaft gear 3 derives this oscillating movement from the uniformly rotating movement of a drive shaft 6, which is connected to an electric motor, not further illustrated.
- the electric motor may be a separate, only the shaft gear 3 driving motor or the main drive of the loom.
- FIG. 2 shows, via a gear transmission 7, a shaft assembly 8, for example according to FIG. 3 , at.
- the drive shaft 6 and the shaft assembly 8 are rotatably mounted in a gear frame 9, the in FIG. 2 illustrated with removed hood.
- the gear transmission 7 is formed as an angle gear. It has a ring gear 10 which is rotatably connected to the shaft assembly 8. It meshes with a pinion 11 which is rotatably connected to the drive shaft 6.
- the bearing device 12 is preferably designed as a ball bearing, while the bearing device 13 may be, for example, a needle or roller bearings. While the storage device 13 in the substantially flat wall 15 arranged flush on both sides may be, the wall 14 preferably has a in the direction of the ring gear 10 projecting pipe flange 16 which carries at its end facing the ring gear 10, the ball bearing of the bearing device 12.
- the bearing device 12 secures the axial position of the shaft assembly 8 and thus of the ring gear 10 and thus defines the backlash of the gear transmission 7.
- the shaft assembly 8 is how FIG. 3 illustrated by an example, shared. It has a drive section 17 and a cam carrier section 18 which are non-rotatably connected by a coupling device 19 in use, bending resistant and axially fixed together and both are arranged coaxially to a rotation axis 20, which is determined by the storage facilities 12, 13.
- the drive section 17 is screwed to the ring gear 10.
- washers 21, a receiving cone 22, a plurality of screws 23 and a clamping piece 24 serve.
- a pressure sleeve 25 carries on its outer peripheral surface, the ball bearing of the bearing device 12, whose inner ring is between a radial flange of the pressure sleeve 25 and a threaded ring 26 taken outside of the pressure sleeve 25 sits.
- the pressure sleeve finds its axial abutment on a corresponding shoulder 27 of the drive portion 17th
- the cam carrier portion 18 of the shaft assembly 8 carries on its outer peripheral surface a package 28 of at least one, preferably a plurality of cams 29 to 29i, which can sit on a common carrier sleeve 30 to form a package. These serve to drive the rocker. 4 and the other wings 4a to 4i. Except for the optionally individual shape of the cam plates 29 or 29a to 29i, the gear arrangements formed from the respective cam plate 29 to 29i and the rocker 4 to 4i coincide with one another.
- FIG. 5 illustrates such a gear assembly 31 using the example of the rocker 4 and the cam 29.
- the cam plate 29, which is formed of two complementary disks 29 ', 29 ", two cam followers 32, 33 are associated in the form of rollers, with parallel axes of rotation at a Rocker 34 are mounted and roll on the non-circular outer peripheral surface of the cam 29. This rotates about the rotation axis 20, which is oriented parallel to the axes of rotation of the cam followers 32, 33.
- the rocker 4 On the rocker 34, the rocker 4 is fixed, corresponding to the radial evasive movement of Cam follower 32, 33 performs a swinging motion when the cam 29 rotates.
- the package 28 is seated between two discs 35, 36 fixed to the carrier sleeve 30.
- the cams 29 to 29i may also be connected to the carrier sleeve in fixed rotational positions.
- the cam disks 29 to 29i can be relatively positioned relative to each other by index bolts or other alignment means.
- they can be secured by a profile toothing, index pin or other means in a fixed rotational position with respect to the carrier sleeve 30.
- the carrier sleeve 30 can turn be secured by suitable means, such as tongue and groove connection, spline, clamping screw, pin connections or the like rotatably on the cam carrier portion 18.
- the cam carrier portion 18 of the shaft assembly 8 is a preferably centrally hollow drilled shaft which extends through the bearing means 13. He can wear an inner ring 37, on the outer periphery of the rolling elements of the bearing device 13 roll. However, the inner ring 37 can be seated on the cam carrier section 18 in a play-like or clearance-free manner and can be placed on a radial collar 38 of the cam carrier section 18.
- the other end of the cam carrier section 18 is connected to the drive section 17.
- it is preferably cone-shaped, so that a cone 39 is formed.
- the cone 39 and the recess 40 are arranged coaxially to the rotation axis 20 and form the coupling device 19 in Shape of a cone clutch or a tapered joint connection. It causes in the coupled state a rotationally fixed and bending-resistant connection of the drive portion 17 and the cam carrier portion 18 with each other.
- the cone clutch has the merit of being connected to the cam support portion 18 in each relative rotational position of the drive portion 17, i. can be engaged. If a specific rotational position is to be specified, a positive-locking means can also be provided, which allows the engagement only in a certain rotational position.
- a suitable securing means 41 is provided, for example in the form of a securing bolt 42 extending through the central bore of the cam carrier section 18 into a threaded blind bore 43 extends into it.
- the bolt 42 is tightened in the threaded blind bore 43, so that its head 44 exerts axial pressure on the cam carrier portion 18 and clamps the cone 39 in the recess 40.
- the execution according to FIG. 3 requires that the distance between the inner shoulder of the radial collar 38 and the end 45 of the drive portion 17 with the width of the package 28 and the width of the discs 35 and 36 and the width of the inner ring 37 matches, so that the bolt 42 clamps these parts together. This is necessary if there is only a frictional connection between the cams 29 and the carrier sleeve 30, ie the cams 29 are slid onto the carrier sleeve 30 without play.
- the bolt 42 simultaneously braces the cam carrier section 18 with the drive section 17 and the cam track 28.
- the cam carrier portion 18 end with its end 46 within the inner ring 37. He thus has no radial collar 38.
- the curve package 28 is clamped between the discs 35 and 36 and the inner ring 37 by means of a clamping plate 47. This is fastened with fastening means 48 in threaded bores 49 of the cam carrier section 18. Otherwise, the previous description applies on the basis of the same reference numerals accordingly.
- the shaft gear 3 described so far operates as follows:
- the drive shaft 6 rotates via the gear transmission 7, the shaft assembly 8 and with this the cam 29 to 29i. Accordingly, perform the swing 4 to 4i oscillatory movements, which are transmitted to the corresponding heald frames.
- the package 28 is replaced.
- the machine is stopped and the hood of the shaft gear 3 removed. Thereafter, the bolt 44 is released. If the cone 39 is stuck in the recess 40, it is released.
- the through bore of the cam carrier section 18 may be provided with an internal thread into which a bolt is screwed, which is supported with a tapered smooth end at the bottom of the threaded blind bore 43.
- one or more tapped holes may pass through the cam carrier section 18 parallel to the central bore, into which jacking screws are inserted. Further possibilities for releasing a cone connection are familiar to the person skilled in the art.
- the cam carrier section 18 can be pulled out of the bearing device 13 axially.
- the package 28 is free and can be out as a whole from the space between the walls 14, 15 laterally out.
- the coupling means 19 is disposed in the space enclosed by the pipe flange 16 between the package 28 and the ring gear 10 outside of the space enclosed by the package 29.
- the coupling device 19 is preferably located between the bearing device 12 and the package 28, as shown.
- a shaft gear 3 for a loom has a shaft assembly 8 which carries at one end a ring gear 10 for driving the shaft assembly 8.
- the shaft assembly 8 is supported by means of two bearing devices 12, 13, between which on the shaft assembly 8, a package 28 is held rotatably with cams 29 to 29i.
- the package 28 carrying part 18 of the shaft assembly 8 is connected to the remaining part 17 of the shaft assembly 8 via a coupling device 19 which forms a separation point.
- the coupling device 19 is formed, for example, as a frictional coupling with cone 39 and corresponding recess 40 and secured with a one of an end of the shaft assembly 8 to be actuated securing means 41 in the connected state.
- connection can be released and the cam carrier portion 18 are removed from the shaft gear 3, wherein the drive portion 17 remains in the shaft gear 3.
- the package 18 can thus be changed as a whole, without having to disassemble the gear drive, which drives the shaft assembly 8.
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- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Looms (AREA)
Description
Die Erfindung betrifft ein Schaftgetriebe für eine Webmaschine.The invention relates to a transmission for a loom.
Zum Antrieb von Webschäften von Webmaschinen werden Schaftgetriebe eingesetzt, die auch als "Schaftmaschinen" bezeichnet werden. Aufgabe des Schaftgetriebes ist es, aus der gleichmäßigen Drehung einer Welle mehrere unterschiedliche hin- und hergehende Bewegungen zum Antrieb von Webschäften abzuleiten.To drive Webschäften weaving shank gears are used, which are also referred to as "dobby". The task of the shaft gear is to derive several different reciprocating motions to drive heddles from the uniform rotation of a shaft.
Die
Ferner ist aus der
Die Form jeder Kurvenscheibe legt die Form der Schwingung des zugeordneten Webschafts fest. Gelegentlich stellt sich die Aufgabe, die Form der Bewegung zu ändern. Dazu müssen die Kurvenscheiben ausgetauscht werden.The shape of each cam determines the shape of the vibration of the associated heald. Occasionally the task is to change the form of the movement. For this purpose, the cams must be replaced.
Die oben genannte Schrift schlägt dazu vor, die Welle an ihrem von dem Winkelgetriebe abliegenden Ende mit einem abnehmbaren Endstück zu versehen, das in einer Lagereinrichtung gelagert ist, die ihrerseits lösbar an dem Getriebegestell gehalten ist. Sollen die Kurvenscheiben ausgewechselt werden, wird die Lagereinrichtung von dem Getriebegestell gelöst. Des Weiteren wird das Endstück von der Welle gelöst. Danach kann die aus Endstück und Lagereinrichtung bestehende Einheit abgenommen werden, wodurch zwischen dem freien Ende der Welle und dem Getriebegestell ein schmaler Spalt verbleibt. Durch diesen können einzelne, axial von der Welle abgezogene Kurvenscheiben aus dem Getriebegestell entfernt und auf umgekehrtem Wege neue Kurvenscheiben auf die Welle aufgebracht werden.The above-mentioned document proposes to provide the shaft at its end remote from the angular gear with a removable end piece which is mounted in a bearing device, which in turn is releasably held on the gear frame. If the cams are to be replaced, the bearing device is released from the gear frame. Furthermore, the tail is released from the shaft. Thereafter, the existing end piece and bearing unit can be removed, leaving a narrow gap between the free end of the shaft and the gear rack. Through this single, axially withdrawn from the shaft cams from the Gearbox removed and reversed new cams are applied to the shaft.
Diese Lösung erfordert die Demontage des auf der Welle gehaltenen Kurvenscheibenpakets.This solution requires disassembly of the cam disk pack held on the shaft.
Es ist Aufgabe der Erfindung, den Wechsel der Kurvenscheiben zu vereinfachen.It is an object of the invention to simplify the change of the cam discs.
Diese Aufgabe wird mit dem Schaftgetriebe nach Anspruch 1 gelöst:This object is achieved with the shaft gear according to claim 1:
Das erfindungsgemäße Schaftgetriebe nutzt als Welle für mehrere Kurvenscheiben eine Wellenanordnung, die auch als geteilte Welle angesehen werden kann. Die Welle ist somit in einen Kurventrägerabschnitt und einen Antriebsabschnitt unterteilt, die in Gebrauch an einer Trennstelle, beispielsweise mittels einer geeigneten Kupplungseinrichtung drehfest und vorzugsweise auch biegefest miteinander verbunden sind. Sollen ein oder mehrere Kurvenscheiben gewechselt werden, werden der Kurventrägerabschnitt und der Antriebsabschnitt der Wellenanordnung voneinander getrennt. Während der Kurventrägerabschnitt und die Kurvenscheiben aus dem Getriebegestell entfernt werden können, kann der Antriebsabschnitt in dem Schaftgetriebe verbleiben. Deshalb bleiben die Zahnräder des Zahnradgetriebes miteinander in Eingriff. Nach Wiedermontage muss das vorhandene Zahnspiel der Zahnräder, das sehr genau eingehalten ist, nicht neu eingestellt werden.The shaft gear according to the invention uses as a shaft for a plurality of cams a shaft arrangement, which can also be regarded as a split shaft. The shaft is thus subdivided into a cam carrier section and a drive section which, in use, are non-rotatably connected to one another at a separation point, for example by means of a suitable coupling device, and are preferably connected to one another in a bending-resistant manner. If one or more cams are to be exchanged, the cam carrier section and the drive section of the shaft arrangement are separated from one another. While the cam carrier portion and the cams may be removed from the gear rack, the drive portion may remain in the stem gear. Therefore, the gears of the gear train remain engaged with each other. After reassembly, the existing backlash of the gears, which has been kept very accurately, must not be readjusted.
Mit Herausnahme des Kurventrägerabschnitts aus dem Getriebegestell wird reichlich Freiraum geschaffen, um das aus den Kurvenscheiben und gegebenenfalls weiteren Elementen bestehende Paket bedarfsweise im Ganzen aus dem Getriebegestell herausnehmen und durch ein anderes Paket ersetzen zu können. Auch können bedarfsweise einzelne Kurvenscheiben dieses Pakets ausgewechselt werden.With the removal of the cam carrier section from the gear rack plenty of space is created to remove the existing of the cams and possibly other elements package as needed as a whole from the gear frame and another package to replace. Also, if necessary, individual cams of this package can be replaced.
Mit der vorliegenden Lösung wird die Trennung der Wellenanordnung an einer Stelle des Drehmomentübertragungswegs zwischen dem aus den Kurvenscheiben bestehenden Paket und dem Zahnradgetriebe vorgeschlagen. Dies schafft eine einfach durchführbare Möglichkeit zum Wechsel der Kurvenscheiben, die ohne Demontage des Zahngetriebes auskommt. Kurvenscheiben müssen nicht einzeln gewechselt sondern können als Gruppe ausgewechselt werden, was die Montagezeiten wesentlichen verkürzen kann.With the present solution, the separation of the shaft assembly at a location of the torque transmission path between the existing of the cams package and the gear transmission is proposed. This creates an easy feasible way to change the cam, which does not require disassembly of the gear. Cams do not have to be changed individually but can be replaced as a group, which can significantly reduce assembly times.
Erfindungsgemäß sind mehrere Kurvenscheiben vorgesehen, die ein Paket bilden, das mit dem Kurventrägerabschnitt lösbar verbunden ist. Beispielsweise können die Kurvenscheiben auf einer Buchse sitzen, die mit dem Kurventrägerabschnitt axial verschiebbar jedoch drehfest verbunden ist. Der Kurventrägerabschnitt kann dann bei Demontage axial aus dem Paket der Kurvenscheiben heraus gezogen werden, wonach die Kurvenscheiben bzw. das aus den Kurvenscheiben gebildete Paket seitlich aus dem Einbauraum heraus genommen werden kann.According to the invention a plurality of cams are provided which form a package which is releasably connected to the cam carrier portion. For example, the cams can sit on a bush, which is axially slidably connected to the cam carrier portion but rotatably connected. The cam carrier section can then be pulled axially during disassembly out of the package of cams, after which the cams or the package formed from the cams can be taken laterally out of the installation space.
Dem Antriebsabschnitt der Wellenanordnung ist vorzugsweise zumindest eine Lagereinrichtung zugeordnet, die zwischen der Trennstelle und dem Zahnrad angeordnet ist. Sie hält den Antriebsabschnitt in dem Getriebegestell, während der Kurventrägerabschnitt und die Kurvenscheiben aus dem Getriebegestell heraus genommen sein können. Vorzugsweise bildet der Antriebsabschnitt lediglich einen kurzen, nur wenig oder nicht über die Lagereinrichtung hinaus stehenden Wellenstumpf. Die Trennstelle bzw. Kupplungseinrichtung ist somit vorzugsweise unmittelbar neben der Lagereinrichtung angeordnet, die zwischen dem Kurvenscheibenpaket und dem Zahnrad angeordnet ist. Damit kann durch Entfernung des Kurventrägerabschnitts der Freiraum zwischen den beiden Lagereinrichtungen auf ganzer Länge des Kurvenscheibenpakets frei gemacht werden.The drive section of the shaft assembly is preferably associated with at least one bearing device which is arranged between the separation point and the gear. It holds the drive section in the gear rack while the cam carrier section and cams may be taken out of the gear rack. Preferably, the drive portion forms only a short, little or not beyond the bearing means out standing stub shaft. The separation point or coupling device is thus preferably arranged directly next to the bearing device, which is arranged between the cam plate and the gear. This can be done by removing the Cam carrier section of the free space between the two storage facilities along the entire length of the cam disc set are made free.
Der Kurventrägerabschnitt ist vorzugsweise in einer Lagereinrichtung axial verschiebbar gehalten. Die Axialposition der Wellenanordnung wird vorzugsweise durch die Lagereinrichtung zwischen Kurvenscheibe und Zahnrad festgelegt. Nach Lösen der Trennstelle zwischen Kurventrägerabschnitt und Antriebsabschnitt kann der Kurventrägerabschnitt axial aus seiner Lagereinrichtung heraus gezogen werden. Die Demontage und Montage der Wellenanordnung ist besonders einfach.The cam carrier section is preferably held axially displaceably in a bearing device. The axial position of the shaft assembly is preferably determined by the bearing means between the cam and gear. After releasing the separation point between the cam carrier section and the drive section, the cam carrier section can be pulled axially out of its bearing device. The disassembly and assembly of the shaft assembly is particularly simple.
Zur Verbindung des Kurventrägerabschnitts mit dem Antriebsabschnitt ist vorzugsweise eine Kupplungseinrichtung vorgesehen, die als reibschlüssige und/oder als formschlüssige Kupplung ausgebildet sein kann. Beispielsweise kann die Kupplungseinrichtung eine spielfreie Reibschlusskupplung, z.B. in Form einer Konuskupplung sein. Eine Spannschraube oder ein anderes geeignetes Spannmittel kann den Kurventrägerabschnitt und den Antriebsabschnitt aneinander sichern und somit die Kupplungseinrichtung in eingekuppeltem Zustand halten. Ein geeignetes Abdrückmittel ermöglicht bedarfsweise das Trennen der Konusverbindung. Alternativ kann die Kupplungseinrichtung als formschlüssige Zahnkupplung ausgebildet sein.To connect the cam carrier section to the drive section, a coupling device is preferably provided which may be designed as a friction-locked and / or as a positive-locking coupling. For example, the coupling device may include a backlash-free frictional coupling, e.g. be in the form of a cone clutch. A tightening screw or other suitable tensioning means can secure the cam carrier section and the drive section to one another and thus hold the coupling device in the engaged state. A suitable Abdrückmittel allows, if necessary, the separation of the cone connection. Alternatively, the coupling device can be designed as a positive toothed coupling.
Weitere Einzelheiten vorteilhafter Ausführungsformen der Erfindung ergeben sich aus Unteransprüchen, der Zeichnung und/oder der Beschreibung.Further details of advantageous embodiments of the invention will become apparent from the dependent claims, the drawings and / or the description.
In der Zeichnung sind Ausführungsbeispiele der Erfindung veranschaulicht:
-
Figur 1 einen Webschaft mit Antriebsgestänge und Schaftgetriebe in schematischer Darstellung, -
Figur 2 das Schaftgetriebe nachFigur 1 mit abgenommener Haube in perspektivischer Darstellung, -
eine zu dem Schaftgetriebe nachFigur 3Figur 2 gehörigen Wellenanordnung in einer ersten Ausführungsform in längs geschnittener Darstellung, -
eine Wellenanordnung für das Schaftgetriebe nachFigur 4Figur 2 in einer zweiten Ausführungsform in längs geschnittener Darstellung und -
eine Getriebeanordnung bestehend aus Kurvenscheibe und Kurvenfolgern zum Antrieb einer Schwinge in schematisierter Seitenansicht.Figur 5
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FIG. 1 a weaving shank with drive linkage and shank gear in a schematic representation, -
FIG. 2 the shank gear afterFIG. 1 with removed hood in perspective view, -
FIG. 3 one to the shaft gear afterFIG. 2 associated shaft arrangement in a first embodiment in longitudinal section, -
FIG. 4 a shaft assembly for the shaft gear toFIG. 2 in a second embodiment in longitudinal section and -
FIG. 5 a gear arrangement consisting of cam and followers to drive a rocker in a schematic side view.
In
Das Zahnradgetriebe 7 ist als Winkelgetriebe ausgebildet. Es weist ein Tellerrad 10 auf, das mit der Wellenanordnung 8 drehfest verbunden ist. Es kämmt mit einem Ritzel 11, das mit der Antriebswelle 6 drehfest verbunden ist.The
Zur Lagerung der Wellenanordnung 8 dienen vorzugsweise zwei Lagereinrichtungen 12, 13. Diese sind vorzugsweise als Wälzlager ausgebildet, die in entsprechende, zueinander vorzugsweise etwa parallel ausgerichtete Wände 14, 15 des Getriebegestells 9 angeordnet sind. Die Lagereinrichtung 12 ist vorzugsweise als Kugellager ausgebildet, während die Lagereinrichtung 13 beispielsweise ein Nadel- oder Rollenlager sein kann. Während die Lagereinrichtung 13 in der im Wesentlichen ebenen Wand 15 beidseitig bündig abschließend angeordnet sein kann, weist die Wand 14 vorzugsweise einen in Richtung auf das Tellerrad 10 vorstehenden Rohrflansch 16 auf, der an seinem dem Tellerrad 10 zugewandten Ende das Kugellager der Lagereinrichtung 12 trägt. Die Lagereinrichtung 12 sichert dabei die Axialposition der Wellenanordnung 8 und somit des Tellerrads 10 und legt damit das Zahnspiel des Zahnradgetriebes 7 fest.For storage of the
Die Wellenanordnung 8 ist, wie
Der Antriebsabschnitt 17 ist mit dem Tellerrad 10 verschraubt. Dazu können, wie
Der Kurventrägerabschnitt 18 der Wellenanordnung 8 trägt an seiner Außenumfangsfläche ein Paket 28 aus zumindest einer, vorzugsweise mehreren Kurvenscheiben 29 bis 29i, die auf einer gemeinsamen Trägerhülse 30 sitzen können, um ein Paket zu bilden. Diese dienen dem Antrieb der Schwinge 4 sowie der weiteren Schwingen 4a bis 4i. Bis auf die jeweils gegebenenfalls individuelle Form der Kurvenscheiben 29 bzw. 29a bis 29i stimmen die aus der jeweiligen Kurvenscheibe 29 bis 29i und der Schwinge 4 bis 4i gebildeten Getriebeanordnungen miteinander überein.
Wie
Der Kurventrägerabschnitt 18 der Wellenanordnung 8 ist eine vorzugsweise zentral hohl gebohrte Welle, die die Lagereinrichtung 13 durchragt. Er kann einen Innenring 37 tragen, an dessen Außenumfang die Wälzkörper der Lagereinrichtung 13 abrollen. Der Innenring 37 kann spielarm oder spielfrei jedoch axial verschiebbar auf dem Kurventrägerabschnitt 18 sitzen und Anlage an einem Radialbund 38 des Kurventrägerabschnitts 18 finden.The
Das andere Ende des Kurventrägerabschnitts 18 ist mit dem Antriebsabschnitt 17 verbunden. Dazu ist es vorzugsweise kegelartig geformt, so dass ein Konus 39 gebildet ist. Dieser passt in eine konische Ausnehmung 40 in dem von dem Tellerrad 10 abliegenden, aus Sicht des Tellerrads 10 jenseits der Lagereinrichtung 12 liegenden Ende des Antriebsabschnitts 17. Der Konus 39 und die Ausnehmung 40 sind koaxial zu der Drehachse 20 angeordnet und bilden die Kupplungseinrichtung 19 in Form einer Konuskupplung oder einer Steilkegelschaftverbindung. Sie bewirkt in gekuppeltem Zustand eine drehfeste und biegefeste Verbindung des Antriebsabschnitts 17 und des Kurventrägerabschnitts 18 miteinander. Die Konuskupplung hat den Vorzug, dass sie in jeder Relativ-Drehposition des Antriebsabschnitts 17 zu dem Kurventrägerabschnitt 18 verbunden, d.h. eingekuppelt werden kann. Soll eine bestimmte Drehlage vorgegeben werden, kann auch ein formschlüssiges Mittel vorgesehen werden, das das Einkuppeln nur in einer bestimmten Drehlage gestattet.The other end of the
Zur Sicherung des Kurventrägerabschnitts 18 und des Antriebsabschnitts 17 aneinander ist ein geeignetes Sicherungsmittel 41 beispielsweise in Form eines Sicherungsbolzens 42 vorgesehen, der sich durch die Zentralbohrung des Kurventrägerabschnitts 18 hindurch in eine Gewindesackbohrung 43 hinein erstreckt. Der Bolzen 42 wird in der Gewindesackbohrung 43 festgezogen, so dass sein Kopf 44 axialen Druck auf den Kurventrägerabschnitt 18 ausübt und den Konus 39 in der Ausnehmung 40 festspannt.To secure the
Die Ausführung gemäß
Alternativ kann, wie in
Das insoweit beschriebene Schaftgetriebe 3 arbeitet wie folgt:The
In Betrieb dreht die Antriebswelle 6 über das Zahnradgetriebe 7 die Wellenanordnung 8 und mit dieser die Kurvenscheiben 29 bis 29i. Entsprechend vollführen die Schwingen 4 bis 4i Schwingungsbewegungen, die auf die entsprechenden Webschäfte übertragen werden.In operation, the
Soll die Bewegung eines oder mehrerer Webschäfte geändert werden, wird das Paket 28 ausgetauscht. Dazu wird die Maschine stillgesetzt und die Haube des Schaftgetriebes 3 abgenommen. Danach wird der Bolzen 44 gelöst. Sollte der Konus 39 in der Ausnehmung 40 festsitzen, wird er gelöst. Dazu kann ein geeignetes Abdrückmittel dienen. Z.B. kann die Durchgangsbohrung des Kurventrägerabschnitts 18 mit einem Innengewinde versehen sein, in das ein Bolzen eingeschraubt wird, der sich mit einem verjüngten glatten Ende an dem Boden der Gewindesackbohrung 43 abstützt. Alternativ können parallel zu der Zentralbohrung ein oder mehrere Gewindebohrungen durch den Kurventrägerabschnitt 18 führen, in die Abdrückschrauben eingesetzt werden. Weitere Möglichkeiten zum Lösen einer Konusverbindung sind dem Fachmann geläufig.If the movement of one or more heald frames to be changed, the
Nach Lösen der Konusverbindung und somit der Kupplungseinrichtung 19 kann der Kurventrägerabschnitt 18 axial aus der Lagereinrichtung 13 herausgezogen werden. Dadurch wird das Paket 28 frei und kann im Ganzen aus dem Zwischenraum zwischen den Wänden 14, 15 seitlich heraus geführt werden.After releasing the cone connection and thus the
Bei dem in
Ein Schaftgetriebe 3 für eine Webmaschine weist eine Wellenanordnung 8 auf, die an einem Ende ein Tellerrad 10 zum Antrieb der Wellenanordnung 8 trägt. Die Wellenanordnung 8 ist mittels zweier Lagereinrichtungen 12, 13 gelagert, zwischen denen auf der Wellenanordnung 8 ein Paket 28 mit Kurvenscheiben 29 bis 29i drehfest gehalten ist. Der das Paket 28 tragende Teil 18 der Wellenanordnung 8 ist mit dem übrigen Teil 17 der Wellenanordnung 8 über eine Kupplungseinrichtung 19 verbunden, die eine Trennstelle bildet. Die Kupplungseinrichtung 19 ist z.B. als Reibschlusskupplung mit Konus 39 und entsprechender Ausnehmung 40 ausgebildet und mit einem von einem Ende der Wellenanordnung 8 her zu betätigenden Sicherungsmittel 41 in verbundenem Zustand gesichert. Zur Demontage und zum Wechsel des Pakets 28 kann die Verbindung gelöst und der Kurventrägerabschnitt 18 aus dem Schaftgetriebe 3 entfernt werden, wobei der Antriebsabschnitt 17 in dem Schaftgetriebe 3 verbleibt. Das Paket 18 kann somit im Ganzen gewechselt werden, ohne den Zahnradtrieb demontieren zu müssen, der die Wellenanordnung 8 antreibt.A
- 11
- Webschaftheald
- 22
- Gestängelinkage
- 33
- Schaftgetriebeshaft gear
- 44
- Schwinge ...... 4iSwingarm ...... 4i
- 55
- Pfeilarrow
- 66
- Antriebswelledrive shaft
- 77
- Zahnradgetriebegear transmission
- 88th
- Wellenanordnungshaft assembly
- 99
- Getriebegestellgear rack
- 1010
- Tellerradcrown
- 1111
- Ritzelpinion
- 1212
- LagereinrichtungStorage facility
- 1313
- LagereinrichtungStorage facility
- 1414
- Wandwall
- 1515
- Wandwall
- 1616
- Rohrflanschpipe flange
- 1717
- Antriebsabschnittdriving section
- 1818
- KurventrägerabschnittCam support section
- 1919
- Kupplungseinrichtungcoupling device
- 2020
- Drehachseaxis of rotation
- 2121
- Beilagscheibenwashers
- 2222
- Aufnahmekonusreceiving cone
- 2323
- Schraubenscrew
- 2424
- Klemmstückclamp
- 2525
- Druckhülsepressure sleeve
- 2626
- Schraubringscrew ring
- 2727
- Schultershoulder
- 2828
- Paketpackage
- 2929
- Kurvenscheibe ....... 29iCam disc ....... 29i
- 3030
- Trägerhülsesupport sleeve
- 3131
- Getriebeanordnungtransmission assembly
- 3232
- Kurvenfolgercam follower
- 3333
- Kurvenfolgercam follower
- 3434
- Wippeseesaw
- 3535
- Scheibedisc
- 3636
- Scheibedisc
- 3737
- Innenringinner ring
- 3838
- Radialbundradial collar
- 3939
- Konuscone
- 4040
- Ausnehmungrecess
- 4141
- Sicherungsmittelsecuring means
- 4242
- Bolzenbolt
- 4343
- GewindesackbohrungThreaded blind bore
- 4444
- Kopfhead
- 4545
- Ende,The End,
- 4646
- EndeThe End
- 4747
- Spannscheibetensioning pulley
- 4848
- Befestigungsmittelfastener
- 4949
- Gewindethread
Claims (9)
- Heald frame gear (3) for a weaving machine with a gear mount (9),
with a shaft arrangement (8), which is rotatably disposed in the gear mount (9) and has at least one cam holder section (18) and one drive section (17), which are separable from one another,
with a plurality of cam discs (29 ... 29i), which are held on the first cam holder section (18), wherein the cam discs (29 ... 29i) form a pack (28), which is detachably connected to the cam holder section (18),
with a toothed gearing (7) comprising at least two gearwheels (10, 11) intermeshing with one another, one of which is connected to the drive section (17) of the shaft arrangement (8) to be fixed against rotation and the other is connected to a drive shaft (6) to be fixed against rotation. - Heald frame gear according to claim 1, characterised in that a separation point, which is arranged between the cam disc (29) and the gearwheel (10) connected to the drive section (17), is defined between the first cam holder section (18) and the drive section (17).
- Heald frame gear according to claim 1, characterised in that the drive section (17) has at least one associated bearing means (12), that a separation point is provided between the cam holder section (18) and the drive section (17), and that the separation point is arranged between the bearing means (12) and the cam disc (29).
- Heald frame gear according to claim 1, characterised in that the cam holder section (18) has an associated bearing means (13) and that the cam holder section (18) is held in the bearing means (13) to be axially displaceable.
- Heald frame gear according to claim 1, characterised in that a coupling means (19), which in coupled state rigidly connects the cam holder section (18) and the drive section (17) to one another, is configured between the cam holder section (18) and the drive section (17).
- Heald frame gear according claim 5, characterised in that the coupling means (19) is a play-free friction coupling.
- Heald frame gear according to claim 5, characterised in that the coupling means (19) is a cone coupling.
- Heald frame gear according to claim 5, characterised in that the coupling means (19) has a clamping element (41) for securing the coupling means (19) in clamped state.
- Heald frame gear according to claim 1, characterised in that the toothed gearing (7) is an angular gear.
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE502006006342T DE502006006342D1 (en) | 2006-10-06 | 2006-10-06 | Shaft gear for a weaving machine |
EP06021001A EP1908862B1 (en) | 2006-10-06 | 2006-10-06 | Shaft drive for a loom |
CN200710163079XA CN101161888B (en) | 2006-10-06 | 2007-09-30 | Shaft drive for a loom |
JP2007261914A JP4617340B2 (en) | 2006-10-06 | 2007-10-05 | Shaft transmission for looms |
US11/907,035 US7594522B2 (en) | 2006-10-06 | 2007-10-09 | Shaft transmission for a weaving machine |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP06021001A EP1908862B1 (en) | 2006-10-06 | 2006-10-06 | Shaft drive for a loom |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1908862A1 EP1908862A1 (en) | 2008-04-09 |
EP1908862B1 true EP1908862B1 (en) | 2010-03-03 |
Family
ID=37813515
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP06021001A Not-in-force EP1908862B1 (en) | 2006-10-06 | 2006-10-06 | Shaft drive for a loom |
Country Status (5)
Country | Link |
---|---|
US (1) | US7594522B2 (en) |
EP (1) | EP1908862B1 (en) |
JP (1) | JP4617340B2 (en) |
CN (1) | CN101161888B (en) |
DE (1) | DE502006006342D1 (en) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2180092B1 (en) * | 2008-10-24 | 2012-11-21 | Groz-Beckert KG | Temple with clamping and unclamping device |
EP2322702B1 (en) * | 2009-11-13 | 2013-04-10 | Groz-Beckert KG | Shedding machine and method for assembly and disassembly of cam discs |
CN102912504A (en) * | 2012-10-22 | 2013-02-06 | 江苏万工科技集团有限公司 | Flat opening mechanism with moving pair |
DE102013225708A1 (en) * | 2013-12-12 | 2015-06-18 | Zf Friedrichshafen Ag | Drive for an industrial truck |
WO2017032556A1 (en) * | 2015-08-26 | 2017-03-02 | Picanol | Drive mechanism for driving a heald frame of a weaving machine |
CN112899847B (en) * | 2021-03-23 | 2022-11-01 | 绍兴佳宝纺织机械科技有限公司 | Power transmission and speed reduction mechanism of servo motor direct-driven jacquard machine |
Family Cites Families (29)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
BE400623A (en) * | 1933-02-16 | |||
US2087449A (en) * | 1933-04-01 | 1937-07-20 | Walter A Rice | Pile wire loom and method of weaving |
US2022225A (en) * | 1933-04-03 | 1935-11-26 | Reynolds Wire Co | Wire weaving machine and method of weaving wire cloth |
US2186814A (en) * | 1934-08-16 | 1940-01-09 | Herman Epstein | Textile fabric manufacture |
US2639732A (en) * | 1945-03-05 | 1953-05-26 | Sulzer Ag | Weaving machinery and control |
US2437379A (en) * | 1946-04-08 | 1948-03-09 | Marshall Field And Company | Loom for weaving pile fabric |
US2631616A (en) * | 1948-02-20 | 1953-03-17 | Wormalds & Walker Ltd | Shuttle-box motion for looms |
US2633874A (en) * | 1951-01-24 | 1953-04-07 | Collins & Aikman Corp | Shedding mechanism for looms |
US2687148A (en) * | 1952-05-20 | 1954-08-24 | Sulzer Ag | Mechanism for actuating the heedle frames in looms |
US2819734A (en) * | 1953-02-21 | 1958-01-14 | Sulzer Ag | Apparatus for controlling the warp in a loom for weaving |
US3192957A (en) * | 1963-10-15 | 1965-07-06 | Continental Elastic Corp | High speed pattern changer |
DE1535221A1 (en) | 1965-06-04 | 1970-07-02 | Gold Zack Werke Ag | Loom equipped with a dobby |
CH463422A (en) * | 1966-09-30 | 1968-09-30 | Sulzer Ag | Drive for looms |
CH484305A (en) * | 1968-03-06 | 1970-01-15 | Brevitex Ets | Device for controlling the opening of the shed in a frame for the production of ribbon fabrics |
FR1585278A (en) * | 1968-09-23 | 1970-01-16 | ||
US3753451A (en) * | 1969-04-03 | 1973-08-21 | Teijin Ltd | Let-off motion in loom |
US3695304A (en) * | 1970-05-18 | 1972-10-03 | Carlo Menegatto | Dobby mechanism for looms |
DE2852510C2 (en) * | 1978-12-05 | 1983-10-27 | Kunz Maschinen- und Apparatebau GmbH, 7850 Lörrach | Device for coupling winding bars |
CH654039A5 (en) * | 1980-12-23 | 1986-01-31 | Saurer Ag Adolph | TWO-PHASE GRIPPER WEAVING MACHINE AND METHOD FOR THEIR OPERATION. |
JPS5959946A (en) * | 1982-09-24 | 1984-04-05 | 日産自動車株式会社 | Control of loom at stopping time thereof in warp yarn send- out apparatus of loom |
DE3301930C1 (en) * | 1982-10-26 | 1984-02-09 | Textilma AG, 6052 Hergiswil | Gearbox for generating a non-uniform output from a uniform drive |
US4850399A (en) * | 1987-06-27 | 1989-07-25 | Lindauer Dorner Gesellschaft M.B.H. | Weaving loom with pneumatic weft thread injection |
DE3826156A1 (en) * | 1987-09-23 | 1989-04-20 | Dornier Gmbh Lindauer | GEARBOX FOR CONTINUOUS WEAVING MACHINES WITH ALTERNATING IN THE WEAVING COMPARTMENT WIDTHPUT ENTRY DEVICES |
IT1223621B (en) * | 1987-12-30 | 1990-09-29 | Baruffaldi Spa | DOUBLE COUPLING JOINT, PARTICULARLY FOR WEAVING FRAMES |
FR2732698B1 (en) * | 1995-04-05 | 1997-05-23 | Staubli Sa Ets | SYSTEM FOR THE TRAINING OF MECHANICS FOR THE FORMATION OF CROWDS ON WEAVING LOOMS |
JP3167943B2 (en) * | 1996-09-26 | 2001-05-21 | 津田駒工業株式会社 | Cam opening device with positioning function |
EP0872585B1 (en) * | 1997-04-16 | 2000-07-19 | Sulzer Textil Ag | Loom with dobby and method for controlling such a loom |
CN2625402Y (en) * | 2003-05-20 | 2004-07-14 | 常熟纺织机械厂有限公司 | Cam driving gear |
FR2868088B1 (en) | 2004-03-29 | 2006-05-26 | Staubli Faverges Sca | CAM ARMOR MECHANISM, WOVEN WEAVING EQUIPPED WITH SUCH A MECHANICAL AND METHOD FOR ASSEMBLING SUCH A MECHANICAL |
-
2006
- 2006-10-06 EP EP06021001A patent/EP1908862B1/en not_active Not-in-force
- 2006-10-06 DE DE502006006342T patent/DE502006006342D1/en active Active
-
2007
- 2007-09-30 CN CN200710163079XA patent/CN101161888B/en not_active Expired - Fee Related
- 2007-10-05 JP JP2007261914A patent/JP4617340B2/en not_active Expired - Fee Related
- 2007-10-09 US US11/907,035 patent/US7594522B2/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
US20080083472A1 (en) | 2008-04-10 |
DE502006006342D1 (en) | 2010-04-15 |
CN101161888B (en) | 2011-09-28 |
EP1908862A1 (en) | 2008-04-09 |
US7594522B2 (en) | 2009-09-29 |
JP2008095271A (en) | 2008-04-24 |
CN101161888A (en) | 2008-04-16 |
JP4617340B2 (en) | 2011-01-26 |
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