WO2004078631A1 - Fixing device comprising a rotary drive for a gripper tool - Google Patents
Fixing device comprising a rotary drive for a gripper tool Download PDFInfo
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- WO2004078631A1 WO2004078631A1 PCT/EP2004/002132 EP2004002132W WO2004078631A1 WO 2004078631 A1 WO2004078631 A1 WO 2004078631A1 EP 2004002132 W EP2004002132 W EP 2004002132W WO 2004078631 A1 WO2004078631 A1 WO 2004078631A1
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- WIPO (PCT)
- Prior art keywords
- adapter plate
- housing
- output flange
- flange
- gripper tool
- 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.)
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C3/00—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith and intended primarily for transmitting lifting forces to loose materials; Grabs
- B66C3/005—Grab supports, e.g. articulations; Oscillation dampers; Orientation
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F3/00—Dredgers; Soil-shifting machines
- E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
- E02F3/28—Dredgers; Soil-shifting machines mechanically-driven with digging tools mounted on a dipper- or bucket-arm, i.e. there is either one arm or a pair of arms, e.g. dippers, buckets
- E02F3/36—Component parts
- E02F3/3604—Devices to connect tools to arms, booms or the like
- E02F3/3677—Devices to connect tools to arms, booms or the like allowing movement, e.g. rotation or translation, of the tool around or along another axis as the movement implied by the boom or arms, e.g. for tilting buckets
Definitions
- the invention relates to a device for attachment and rotational drive of a gripper tool or the like on the boom of a Kraus, excavator or similar conveying and lifting machine, with a housing attached to the cantilever arm, which receives in its interior a hydraulic motor with a driven flange and on the Side of the gripper tool has an adapter plate, which serves for fastening of the gripper tool and is driven by the drive flange for rotation, according to the preamble of claim 1.
- Such a device is known from the Applicant's practice. It is shown schematically in Figure 1 of the embodiment. Thereafter, the device has a housing 1, which is screwed together from the parts 2 a, 2 b and 2 c.
- a hydraulic motor 12 is rotatably inserted.
- the hydraulic motor is driven by a hydraulic fluid, which is in and out via lines not shown in the interior of the hydraulic motor.
- the shaft of the hydraulic motor generally performs only short rotational movements, which rotate an output flange by certain degrees.
- an adapter plate 5 is screwed.
- the adapter plate rests on the one hand on the end face of Abtriebsflansches 13, on the other hand, a contact with the end face of the housing part 2 c is possible.
- the housing 1 is screwed by means of its upper housing part 2 a to the boom arm of the crane, excavator or similar conveying and lifting machine.
- the gripper tool is attached.
- the gripper tool can be displaced into the respectively most suitable angular position by means of the hydraulic motor 12 via the abrasion flange 13 and the adapter plate 5.
- the gripper tool now detects building materials, debris, soil or the like and conveys them when pivoting the boom to another location. It may happen that the gripper tool strikes very hard on the ground, against a house wall or the like.
- the operation of a gripper tool is generally carried out under very harsh conditions. As long as such a stroke takes place in the strictly axial direction of the hydraulic motor and the housing, this may still be the case.
- the gripper tool is connected via the adapter plate 5 and the output flange 13 with the shaft of the hydraulic motor. Since the adapter plate is not fixed in the radial direction, the impact occurring in an oblique direction are ultimately delivered to the shaft of the hydraulic motor. Over time, this leads to overuse of the hydraulic motor and its bearings. In the usual rough operation of the gripper tools damage or destruction of the hydraulic motor is the result in the long run.
- the invention has for its object to design the device of the type mentioned in such a way that a long service life of the hydraulic motor is guaranteed even in rough continuous operation with jerky stress of the adapter plate in changing directions.
- Claim 1 characterized in that the adapter plate radially supported on the housing and is rotatably mounted and located at an axial distance from the output flange.
- the adapter plate is in fact mounted on the housing of the device and thus fixed and supported in the radial direction.
- the output flange only serves more to put the adapter plate in rotary motion.
- Shocks that act in an oblique direction on the adapter plate are introduced from the outside into the already stable housing and recorded there with certainty. But the shocks can not be passed on to the shaft of the hydraulic motor, because the output flange and the adapter plate no longer lie flat on each other, but are at an axial distance from each other.
- the hydraulic motor can be selected from a lightweight design. Nevertheless, a significantly extended service life of the hydraulic motor is achieved.
- an advantageous embodiment of the device according to the invention is that the housing and the adapter plate are bell-shaped and engage with each other.
- the adhesion between the adapter plate and the housing is achieved with particular security.
- the housing and the bell-shaped adapter plate reinforce each other by their mesh, so that overall there is a clearly stiffened housing.
- the latter embodiment can be realized in that the adapter plate is provided with an enclosing the housing from the outside annular flange.
- the annular flange thus assumes the storage of the adapter plate on the housing.
- the storage is advantageously carried out in accordance with a further embodiment, characterized in that between the outer periphery of the housing and the inner periphery of the annular flange a deep groove ball bearing is provided.
- the deep groove ball bearing can be very heavily loaded, even if the balls of the storage are not excessively large.
- annular flange and the adapter plate are made in one piece. A cheaper production but is possible because the annular flange and adapter plate separate parts and are screwed together.
- the axial extent of the entire device can be reduced if, according to a further advantageous embodiment, the output flange is accommodated in a depression on the inside of the adapter plate.
- the rotary driving will be done by bolts that pass through the output flange and the adapter plate.
- Figure 1 shows a device according to the prior art.
- Figure 2 has the inventive device to the subject.
- a housing 1 which is composed of the annular housing parts 2 a, 2 b and 2 c. These housing parts are firmly screwed together.
- a hydraulic motor 12 is rotatably inserted and secured therein by means not shown.
- the hydraulic motor drives an output flange 13, which in turn is bolted to an adapter plate 5.
- the output flange 13 and the adapter plate 5 are firmly against each other.
- the adapter plate 5 can also be in good contact with the end face of the housing part 2 when the installation tolerances are selected.
- This device is attached by means of the housing part 2 a to the boom of a crane, excavator or similar conveying and lifting machine.
- the adapter plate 5 then carries the gripper tool and puts this in a required for the workflow rotational movement as soon as the hydraulic motor 12 is actuated.
- the known device can absorb quite well from the gripper tool originating shocks, provided that they take place in the strictly axial direction.
- the adapter plate 5 is namely on the front side of the housing part 2 c, so that the hydraulic motor 12 is not overstressed in this case.
- FIG. 2 shows the device according to the invention.
- a housing 1 is present, which is constructed in this case of the two housing parts 2 a and 2 b.
- the housing parts are connected to each other by housing screws 3. With 4 screw holes are shown, which are used to attach the housing 1 to the boom of a Kraus, excavator or similar conveyor and hoist.
- the lower housing part 2 b is surrounded by an annular flange 6, which in turn is bolted via Neritatisschrauben 7 with an adapter plate 5. Between the housing part 2 b and the annular flange 6, a deep groove ball bearing is provided, which is indicated by the balls 8. Therefore, located between the lower housing part 2 b and the annular flange 6 and a gap 9 which is covered by the sealing lips 10 and 11. In this way Nerungraphyen be kept away from the deep groove ball bearings.
- a hydraulic motor which is rotatably inserted into the housing.
- the hydraulic motor 12 drives via its shaft to a driven flange 13, which in turn is rotatably coupled to the adapter plate 5 ' .
- a driven flange 13 Between the output flange 13 and the adapter plate 5 is an axial distance 14 before.
- bolts are indicated, which serve as a means for positive rotational drive between the output flange and the adapter plate.
- the output flange 13 is received in a recess 18 of the adapter plate 5, whereby axial length is saved.
- the adapter plate 5 and the annular flange 6 form a rigid unit, which is made only for cost-effective production of two parts.
- For accurate centering serve a centering collar 16 on the adapter plate 5 and a recess 17 in the annular flange. 6
- the adapter plate 5 with its annular flange 6 is rotatably arranged on the housing 1, but forms in static terms with this a unit. If from the rough operation of the gripper tool in oblique direction occurring shocks are given to the adapter plate 5, they are passed directly through the deep groove ball bearing to the solid housing 1.
- the hydraulic motor which indeed has an axial distance 14 from the adapter plate 5, remains largely unaffected.
- hydraulic motors of lighter design can be used, which nevertheless achieve a much longer trouble-free operation and have a longer life compared to the prior art.
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- Engineering & Computer Science (AREA)
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- Earth Drilling (AREA)
Abstract
Description
NOULGARIS, Christos 3. März 2004 NOULGARIS, Christos March 3, 2004
N81193DE F/Le My/ss/mhN81193EN F / Le My / ss / mh
BEFESTIGUΝGSEIΝRICHTUΝG MIT EINEM DREHANTRIEB FÜR EIN GREIFERWERKZEUGMOUNTING EQUIPMENT WITH A TURNING DRIVE FOR A GRIPPING TOOL
Die Erfindung betrifft eine Einrichtung zur Befestigung und zum Drehantrieb eines Greiferwerkzeugs oder dergleichen an dem Auslegerarm eines Kraus, Baggers oder einer ähnlichen Förder- und Hebemaschine, mit einem an dem Auslegerarm befestigten Gehäuse, das in seinem Inneren einen Hydromotor mit einem Abtriebsflansch aufnimmt und an der Seite des Greiferwerkzeugs eine Adapterplatte aufweist, die zur Befestigung des Greiferwerkzeugs dient und durch den Antriebsflansch zur Drehung angetrieben ist, nach dem Oberbegriff des Anspruchs 1.The invention relates to a device for attachment and rotational drive of a gripper tool or the like on the boom of a Kraus, excavator or similar conveying and lifting machine, with a housing attached to the cantilever arm, which receives in its interior a hydraulic motor with a driven flange and on the Side of the gripper tool has an adapter plate, which serves for fastening of the gripper tool and is driven by the drive flange for rotation, according to the preamble of claim 1.
Eine derartige Einrichtung ist aus der betrieblichen Praxis der Anmelderin bekannt. Sie ist in Figur 1 des Ausführungsbeispiels schematisch dargestellt. Danach hat die Einrichtung ein Gehäuse 1, das aus den Teilen 2 a, 2 b und 2 c zusammengeschraubt ist. In dieses Gehäuse ist ein Hydromotor 12 drehfest eingesetzt. Der Hydromotor wird durch eine Hydraulikflüssigkeit angetrieben, die über nicht weiter dargestellte Leitungen in das Innere des Hydromotors hinein- und wieder abgeführt wird. Dabei führt die Welle des Hydromotors im allgemeinen nur kurze Drehbewegungen aus, die einen Abtriebsflansch um bestimmte Winkelgrade drehen. Mit dem Abtriebsflansch ist eine Adapterplatte 5 verschraubt. Die Adapterplatte liegt einerseits an der Stirnfläche des Abtriebsflansches 13 an, andererseits ist auch eine Berührung mit der Stirnfläche des Gehäuseteils 2 c möglich. Im praktischen Betrieb wird das Gehäuse 1 mittels seines oberen Gehäuseteils 2 a an dem Auslegerarm des Krans, Baggers oder einer ähnlichen Förder- und Hebemaschine angeschraubt. An der Adapterplatte 5 ist das Greiferwerkzeug befestigt.Such a device is known from the Applicant's practice. It is shown schematically in Figure 1 of the embodiment. Thereafter, the device has a housing 1, which is screwed together from the parts 2 a, 2 b and 2 c. In this case, a hydraulic motor 12 is rotatably inserted. The hydraulic motor is driven by a hydraulic fluid, which is in and out via lines not shown in the interior of the hydraulic motor. The shaft of the hydraulic motor generally performs only short rotational movements, which rotate an output flange by certain degrees. With the output flange an adapter plate 5 is screwed. The adapter plate rests on the one hand on the end face of Abtriebsflansches 13, on the other hand, a contact with the end face of the housing part 2 c is possible. In practical operation, the housing 1 is screwed by means of its upper housing part 2 a to the boom arm of the crane, excavator or similar conveying and lifting machine. On the adapter plate 5, the gripper tool is attached.
BESTATIGUNGSKOPIE Beim Betrieb des Krans, Baggers oder dergleichen kann mittels des Hydromotors 12 über den Abriebsflansch 13 und die Adapterplatte 5 das Greiferwerkzeug in die jeweils am besten geeignete Winkelstellung versetzt werden. Zugleich sind weitere nicht dargestellte Hydraulikleitungen vorhanden, die das Offnen und Schließen des Greiferwerkzeugs bewirken. Das Greiferwerkzeug erfaßt nun Baumaterialien, Schutt, Erdreich oder dergleichen und befördert sie beim Schwenken des Auslegerarms an eine andere Stelle. Hierbei kann es vorkommen, daß das Greiferwerkzeug sehr hart auf den Boden, gegen eine Häuserwand oder dergleichen anschlägt. Der Betrieb eines Greiferwerkzeugs erfolgt im allgemeinen unter sehr rauhen Bedingungen. Solange ein derartiger Schlag in streng axialer Richtung des Hydromotors und des Gehäuses erfolgt, mag das noch angehen. Gefährlich sind aber Schläge, die zusätzlich eine radiale Komponente aufweisen, so daß das Gehäuse sich verwindet und der darin befindliche Motor in Schrägrichtung stoßartig beansprucht wird. Dabei ist zu bedenken, daß das Greiferwerkzeug über die Adapterplatte 5 und den Abtriebsflansch 13 mit der Welle des Hydromotors verbunden ist. Da die Adapterplatte in radialer Richtung nicht festgelegt ist, werden die in schräger Richtung erfolgenden Stöße letzten Endes an die Welle des Hydromotors abgegeben. Auf die Dauer führt das zu einer Überbeanspruchung des Hydromotors und seiner Lager. Bei dem üblichen rauhen Betrieb der Greiferwerkzeuge ist auf die Dauer eine Beschädigung oder Zerstörung des Hydromotors die Folge.BESTATIGUNGSKOPIE During operation of the crane, excavator or the like, the gripper tool can be displaced into the respectively most suitable angular position by means of the hydraulic motor 12 via the abrasion flange 13 and the adapter plate 5. At the same time, there are further hydraulic lines, not shown, which cause the opening and closing of the gripper tool. The gripper tool now detects building materials, debris, soil or the like and conveys them when pivoting the boom to another location. It may happen that the gripper tool strikes very hard on the ground, against a house wall or the like. The operation of a gripper tool is generally carried out under very harsh conditions. As long as such a stroke takes place in the strictly axial direction of the hydraulic motor and the housing, this may still be the case. But are dangerous blows, which additionally have a radial component, so that the housing is twisting and the motor located therein is jerky claimed in oblique direction. It should be noted that the gripper tool is connected via the adapter plate 5 and the output flange 13 with the shaft of the hydraulic motor. Since the adapter plate is not fixed in the radial direction, the impact occurring in an oblique direction are ultimately delivered to the shaft of the hydraulic motor. Over time, this leads to overuse of the hydraulic motor and its bearings. In the usual rough operation of the gripper tools damage or destruction of the hydraulic motor is the result in the long run.
Der Erfindung liegt die Aufgabe zugrunde, die Einrichtung der eingangs genannten Art derart auszugestalten, daß auch im rauhen Dauerbetrieb mit stoßartiger Beanspruchung der Adapterplatte in wechselnden Richtungen eine lange Lebensdauer des Hydromotors gewährleistet ist.The invention has for its object to design the device of the type mentioned in such a way that a long service life of the hydraulic motor is guaranteed even in rough continuous operation with jerky stress of the adapter plate in changing directions.
Die Losung dieser Aufgabe erfolgt bei einer Einrichtung der eingangs genannten Art erfindungsgemäß nach dem kennzeichnenden Teil desThe solution to this problem is carried out in a device of the type mentioned according to the invention according to the characterizing part of
Anspruchs 1 dadurch, dass die Adapterplatte an dem Gehäuse radial abgestützt und drehbar gelagert ist und sich im axialen Abstand von dem Abtriebsflansch befindet.Claim 1, characterized in that the adapter plate radially supported on the housing and is rotatably mounted and located at an axial distance from the output flange.
Mit der erfindungsgemäßen Lösung erfolgt somit in statischer Hinsicht eine vollständige Abkehr von der bekannten Konstruktion. Die Adapterplatte ist nämlich an dem Gehäuse der Einrichtung gelagert und damit in radialer Hinsicht festgelegt und abgestützt. Der Abtriebsflansch dient nur mehr dazu, die Adapterplatte in Drehbewegung zu versetzen. Stöße, die in schräger Richtung auf die Adapterplatte einwirken, werden von außen in das ohnehin stabile Gehäuse eingeleitet und dort mit Sicherheit aufgenommen. Die Stöße können aber nicht mehr bis an die Welle des Hydromotors weitergegeben werden, weil der Abtriebsflansch und die Adapterplatte nicht mehr flächig aufeinander liegen, sondern sich im axialen Abstand voneinander befinden. Im Gegensatz zu der bekannten Ausführung kann daher der Hydromotor von leichter Bauart gewählt werden. Dennoch ist eine erheblich verlängerte Lebensdauer des Hydromotors erreicht.With the solution according to the invention thus takes place in static terms, a complete departure from the known construction. The adapter plate is in fact mounted on the housing of the device and thus fixed and supported in the radial direction. The output flange only serves more to put the adapter plate in rotary motion. Shocks that act in an oblique direction on the adapter plate are introduced from the outside into the already stable housing and recorded there with certainty. But the shocks can not be passed on to the shaft of the hydraulic motor, because the output flange and the adapter plate no longer lie flat on each other, but are at an axial distance from each other. In contrast to the known design, therefore, the hydraulic motor can be selected from a lightweight design. Nevertheless, a significantly extended service life of the hydraulic motor is achieved.
Eine vorteilhafte Ausgestaltung der erfindungsgemäßen Einrichtung besteht darin, daß das Gehäuse und die Adapterplatte glockenförmig ausgebildet sind und ineinander eingreifen. Bei dieser Ausgestaltung ist der Kraftschluß zwischen der Adapterplatte und dem Gehäuse mit besonderer Sicherheit erreicht. Ferner verstärken sich das Gehäuse und die glockenförmige Adapterplatte durch ihr Ineinandergreifen gegenseitig, so daß insgesamt ein deutlich versteiftes Gehäuse vorliegt.An advantageous embodiment of the device according to the invention is that the housing and the adapter plate are bell-shaped and engage with each other. In this embodiment, the adhesion between the adapter plate and the housing is achieved with particular security. Furthermore, the housing and the bell-shaped adapter plate reinforce each other by their mesh, so that overall there is a clearly stiffened housing.
Konstruktiv kann die letztgenannte Ausgestaltung dadurch verwirklicht werden, daß die Adapterplatte mit einem das Gehäuse von außen umgreifenden Ringflansch versehen ist. Der Ringflansch übernimmt somit die Lagerung der Adapterplatte an dem Gehäuse.Structurally, the latter embodiment can be realized in that the adapter plate is provided with an enclosing the housing from the outside annular flange. The annular flange thus assumes the storage of the adapter plate on the housing.
Die Lagerung wird in vorteilhafter Weise gemäß einer weiteren Ausgestaltung dadurch vorgenommen, daß zwischen dem Außenumfang des Gehäuses und dem Innenumfang des Ringflansches eine Rillenkugellagerung vorgesehen ist. Bei dem verhältnismäßig großen Durchmesser des Gehäuses und des Ringflansches, die den Hydromotor umgeben, kann die Rillenkugellagerung sehr stark belastet werden, auch wenn die Kugeln der Lagerung nicht übermäßig groß sind.The storage is advantageously carried out in accordance with a further embodiment, characterized in that between the outer periphery of the housing and the inner periphery of the annular flange a deep groove ball bearing is provided. With the relatively large diameter of the housing and the annular flange, which surround the hydraulic motor, the deep groove ball bearing can be very heavily loaded, even if the balls of the storage are not excessively large.
Zwar ist es statisch besonders vorteilhaft, wenn der Ringflansch und die Adapterplatte einteilig ausgeführt sind. Eine preiswertere Herstellung wird aber dadurch möglich, daß Ringflansch und Adapterplatte getrennte Teile und miteinander verschraubt sind.Although it is statically particularly advantageous if the annular flange and the adapter plate are made in one piece. A cheaper production but is possible because the annular flange and adapter plate separate parts and are screwed together.
Die axiale Erstreckung der gesamten Einrichtung kann verringert werden, wenn nach einer weiteren vorteilhaften Ausgestaltung der Abtriebsflansch in einer Vertiefung an der Innenseite der Adapterplatte aufgenommen ist.The axial extent of the entire device can be reduced if, according to a further advantageous embodiment, the output flange is accommodated in a depression on the inside of the adapter plate.
Wie schon gesagt, reicht es aus, wenn der Abtriebsflansch und die Adapterplatte nur insoweit miteinander verbunden sind, als es zum Erzielen einer gemeinsamen Drehbewegung erforderlich ist. Hierzu können Mittel zur formschlüssigen Drehmitnahme zwischen dem Abtriebsflarisch und der Adapterplatte vorgesehen sein.As already mentioned, it is sufficient if the output flange and the adapter plate are connected to one another only to the extent that it is necessary to achieve a common rotational movement. For this purpose, means may be provided for the positive rotational engagement between the output flange and the adapter plate.
In der Praxis wird die Drehmitnahme durch Schraubenbolzen erfolgen, die den Abtriebsflansch und die Adapterplatte durchsetzen.In practice, the rotary driving will be done by bolts that pass through the output flange and the adapter plate.
Die Erfindung wird anschließend anhand eines in den Figuren erläuterten Ausführungsbeispiels noch näher beschrieben.The invention will be described in more detail with reference to an embodiment explained in the figures.
Figur 1 zeigt eine Einrichtung gemäß dem Stand der Technik.Figure 1 shows a device according to the prior art.
Figur 2 hat die erfindungsgemäße Einrichtung zum Gegenstand. Wie eingangs bereits ausgeführt worden ist, hat eine Einrichtung zur Befestigung und zum Drehantrieb eines Greiferwerkzeugs oder dergleichen ein Gehäuse 1, das aus den ringförmigen Gehäuseteilen 2 a, 2 b und 2 c aufgebaut ist. Diese Gehäuseteile sind fest miteinander verschraubt. In das Gehäuse ist ein Hydromotor 12 drehfest eingesetzt und durch nicht dargestellte Mittel darin befestigt. Der Hydromotor treibt einen Abtriebsflansch 13 an, der seinerseits mit einer Adapterplatte 5 verschraubt ist. Bei dieser aus dem Stand der Technik bekannten Einrichtung liegen der Abtriebsflansch 13 und die Adapterplatte 5 fest aneinander an. Die Adapterplatte 5 kann aber bei überlegter Auswahl der Einbautoleranzen auch mit der Stirnseite des Gehäuseteils 2 in Berührung stehen.Figure 2 has the inventive device to the subject. As has already been stated, has a device for attachment and rotary drive of a gripper tool or the like, a housing 1, which is composed of the annular housing parts 2 a, 2 b and 2 c. These housing parts are firmly screwed together. In the housing, a hydraulic motor 12 is rotatably inserted and secured therein by means not shown. The hydraulic motor drives an output flange 13, which in turn is bolted to an adapter plate 5. In this device known from the prior art, the output flange 13 and the adapter plate 5 are firmly against each other. However, the adapter plate 5 can also be in good contact with the end face of the housing part 2 when the installation tolerances are selected.
Diese Einrichtung wird mittels des Gehäuseteils 2 a an dem Auslegerarm eines Krans, Baggers oder einer ähnlichen Förder- und Hebemaschine befestigt. Die Adapterplatte 5 trägt sodann das Greiferwerkzeug und versetzt dieses in eine für den Arbeitsablauf erforderliche Drehbewegung, sobald der Hydromotor 12 betätigt wird.This device is attached by means of the housing part 2 a to the boom of a crane, excavator or similar conveying and lifting machine. The adapter plate 5 then carries the gripper tool and puts this in a required for the workflow rotational movement as soon as the hydraulic motor 12 is actuated.
Die bekannte Einrichtung kann aus dem Greiferwerkzeug herrührende Stöße recht gut aufnehmen, sofern diese in streng axialer Richtung erfolgen. In diesem Fall setzt sich die Adapterplatte 5 nämlich auf die Stirnseite des Gehäuseteils 2 c, so daß der Hydromotor 12 hierbei nicht übermäßig beansprucht wird.The known device can absorb quite well from the gripper tool originating shocks, provided that they take place in the strictly axial direction. In this case, the adapter plate 5 is namely on the front side of the housing part 2 c, so that the hydraulic motor 12 is not overstressed in this case.
Anders liegen die Dinge, wenn die im Betrieb unvermeidlich auftretenden Stöße auch eine radiale Komponente haben, die Stoßbeanspruchung also in schräger Richtung erfolgt. Dann gleitet die Adapterplatte 5 auf der Stirnseite des Gehäuseteils 2 c und bewirkt eine Biege- und Stoßbeanspruchung an der Welle des Hydromotors 12; denn die Beanspruchung wird von der Adapterplatte 5 über den Abtriebsflansch 13 an die Motorwelle weitergegeben. Ferner verwindet sich das gesamte Gehäuse.Auf die Dauer muß das zu einer Beschädigung oder sogar zu einer Zerstörung des Hydromotors und seiner Lager führen.Things are different when the jolts which inevitably occur during operation also have a radial component, that is to say the impact stress takes place obliquely. Then slides the adapter plate 5 on the front side of the housing part 2 c and causes a bending and impact stress on the shaft of the hydraulic motor 12; because the stress is passed from the adapter plate 5 via the output flange 13 to the motor shaft. Furthermore, the entire housing winds. In the long run that has to be Damage or even destruction of the hydraulic motor and its bearings.
In Figur 2 ist die erfindungsgemäße Einrichtung dargestellt. Auch hier ist ein Gehäuse 1 vorhanden, das in diesem Fall aus den beiden Gehäuseteilen 2 a und 2 b aufgebaut ist. Die Gehäuseteile sind durch Gehäuseschrauben 3 miteinander verbunden. Mit 4 sind Schraublöcher dargestellt, die zur Befestigung des Gehäuses 1 an dem Auslegerarm eines Kraus, Baggers oder einer ähnlichen Förder- und Hebemaschine dienen.FIG. 2 shows the device according to the invention. Again, a housing 1 is present, which is constructed in this case of the two housing parts 2 a and 2 b. The housing parts are connected to each other by housing screws 3. With 4 screw holes are shown, which are used to attach the housing 1 to the boom of a Kraus, excavator or similar conveyor and hoist.
Das untere Gehäuseteil 2 b ist von einem Ringflansch 6 umgeben, der seinerseits über Nerbindungsschrauben 7 mit einer Adapterplatte 5 verschraubt ist. Zwischen dem Gehäuseteil 2 b und dem Ringflansch 6 ist eine Rillenkugellagerung vorgesehen, die durch die Kugeln 8 angedeutet ist. Deshalb befindet sich zwischen dem unteren Gehäuseteil 2 b und dem Ringflansch 6 auch ein Spalt 9, der durch die Dichtlippen 10 und 11 abgedeckt wird. Auf diese Weise werden Nerunreinigungen von der Rillenkugellagerung ferngehalten.The lower housing part 2 b is surrounded by an annular flange 6, which in turn is bolted via Nerbindungsschrauben 7 with an adapter plate 5. Between the housing part 2 b and the annular flange 6, a deep groove ball bearing is provided, which is indicated by the balls 8. Therefore, located between the lower housing part 2 b and the annular flange 6 and a gap 9 which is covered by the sealing lips 10 and 11. In this way Nerunreinigungen be kept away from the deep groove ball bearings.
Mit 12 ist wieder ein Hydromotor bezeichnet, der drehfest in das Gehäuse eingesetzt ist. Der Hydromotor 12 treibt über seine Welle einen Abtriebsflansch 13 an, der seinerseits mit der Adapterplatte 5 ' drehfest gekoppelt ist. Zwischen dem Abtriebsflansch 13 und der Adapterplatte 5 liegt ein axialer Abstand 14 vor. Mit 15 sind Schraubenbolzen angedeutet, die als Mittel zur formschlüssigen Drehmitnahme zwischen dem Abtriebsflansch und der Adapterplatte dienen. Ersichtlich ist der Abtriebsflansch 13 in einer Vertiefung 18 der Adapterplatte 5 aufgenommen, wodurch axiale Baulänge eingespart wird.With 12 again a hydraulic motor is called, which is rotatably inserted into the housing. The hydraulic motor 12 drives via its shaft to a driven flange 13, which in turn is rotatably coupled to the adapter plate 5 ' . Between the output flange 13 and the adapter plate 5 is an axial distance 14 before. With 15 bolts are indicated, which serve as a means for positive rotational drive between the output flange and the adapter plate. Obviously, the output flange 13 is received in a recess 18 of the adapter plate 5, whereby axial length is saved.
Die Adapterplatte 5 und der Ringflansch 6 bilden eine starre Baueinheit, die lediglich zur kostengünstigen Herstellung aus zwei Einzelteilen hergestellt ist. Zur maßgenauen Zentrierung dienen ein Zentrierbund 16 an der Adapterplatte 5 und eine Ausnehmung 17 in dem Ringflansch 6.The adapter plate 5 and the annular flange 6 form a rigid unit, which is made only for cost-effective production of two parts. For accurate centering serve a centering collar 16 on the adapter plate 5 and a recess 17 in the annular flange. 6
Die Adapterplatte 5 mit ihrem Ringflansch 6 ist zwar drehbar an dem Gehäuse 1 angeordnet, bildet aber in statischer Hinsicht mit diesem eine Einheit. Wenn aus dem rauhen Betrieb des Greiferwerkzeugs in Schrägrichtung erfolgende Stöße auf die Adapterplatte 5 gegeben werden, so werden diese unmittelbar über die Rillenkugellagerung an das massiv ausgebildete Gehäuse 1 weitergegeben. Der Hydromotor, der ja einen axialen Abstand 14 von der Adapterplatte 5 aufweist, bleibt davon weitgehend unberührt.Although the adapter plate 5 with its annular flange 6 is rotatably arranged on the housing 1, but forms in static terms with this a unit. If from the rough operation of the gripper tool in oblique direction occurring shocks are given to the adapter plate 5, they are passed directly through the deep groove ball bearing to the solid housing 1. The hydraulic motor, which indeed has an axial distance 14 from the adapter plate 5, remains largely unaffected.
Auf diese Weise können Hydromotoren von leichterer Bauart verwendet werden, die dennoch im Vergleich zum Stand der Technik einen weitaus längeren störungsfreien Betrieb erzielen und eine verlängerte Lebensdauer aufweisen. In this way, hydraulic motors of lighter design can be used, which nevertheless achieve a much longer trouble-free operation and have a longer life compared to the prior art.
BβzugsziffernlisteBβzugsziffernliste
Gehäuse a Gehäuseteil b Gehäuseteil c Gehäuseteil Gehäuseschraube Schraubloch Adapterplatte Ringflansch Verbindungsschraube Kugel Ringspalt 0 Dichtlippe 1 Dichtlippe 2 Hydromotor 3 Abtriebsflansch 4 axialer Abstand 5 Schraubenbolzen 6 Zentrierbund 7 Ausnehmung 8 Vertiefung Housing a Housing part b Housing part c Housing part Housing screw Screw hole Adapter plate Ring flange Connecting screw Ball Annular gap 0 Sealing lip 1 Sealing lip 2 Hydraulic motor 3 Output flange 4 Axial distance 5 Bolt 6 Centering collar 7 Recess 8 Recess
Claims
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US10/547,886 US20060225311A1 (en) | 2003-03-03 | 2004-03-03 | Fixing device comprising a rotary drive for a gripper tool |
| EP04716561A EP1603822A1 (en) | 2003-03-03 | 2004-03-03 | Fixing device comprising a rotary drive for a gripper tool |
| CA002532240A CA2532240A1 (en) | 2003-03-03 | 2004-03-03 | Attaching device with a rotary drive for a gripping tool |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE10309258A DE10309258B4 (en) | 2003-03-03 | 2003-03-03 | Device for fastening and for rotary drive of a gripper tool |
| DE10309258.7 | 2003-03-03 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2004078631A1 true WO2004078631A1 (en) | 2004-09-16 |
Family
ID=32891826
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/EP2004/002132 Ceased WO2004078631A1 (en) | 2003-03-03 | 2004-03-03 | Fixing device comprising a rotary drive for a gripper tool |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US20060225311A1 (en) |
| EP (1) | EP1603822A1 (en) |
| CA (1) | CA2532240A1 (en) |
| DE (1) | DE10309258B4 (en) |
| WO (1) | WO2004078631A1 (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SE537562C2 (en) * | 2011-03-26 | 2015-06-16 | Indexator Rotator Sys Ab | Device at a rotator |
| CN103256055B (en) * | 2013-05-11 | 2015-07-01 | 山西东华机械有限公司 | Bearing type rotary table for bottom cleaning machine |
| CN103243755B (en) * | 2013-05-11 | 2016-02-03 | 山西东华机械有限公司 | Dintheader bearing adds gear ring type turntable |
| SE541516C2 (en) * | 2016-08-26 | 2019-10-22 | Indexator Rotator Sys Ab | Rotator arrangement with bearing for axial load distribution |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0429413A1 (en) * | 1989-11-20 | 1991-05-29 | Vanzini, Oddone | An articulation with rotating hydraulic connection, in particular for mobile work machines |
| DE19505585A1 (en) * | 1993-10-20 | 1996-08-22 | Thumm Heinz Oelhydraulik | Slewing mechanism for tool coupled to excavator jib or wheel rim |
| EP1085205A2 (en) * | 1999-09-20 | 2001-03-21 | Heinz Thumm | Hydraulic drive |
| US6435235B1 (en) * | 2000-10-24 | 2002-08-20 | Caterpillar Inc. | Mounting for tree harvester head |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2838428C2 (en) * | 1978-09-02 | 1984-05-24 | Fa. Heinz Thumm, 7012 Fellbach | Rotating device for hanging loads |
| DE3146696A1 (en) * | 1981-11-25 | 1983-06-01 | Heinz Thumm Ölhydraulische Antriebe GmbH, 7012 Fellbach | Rotary mechanism for an excavator grab |
| DE3146695A1 (en) * | 1981-11-25 | 1983-07-07 | Heinz Thumm Ölhydraulische Antriebe GmbH, 7012 Fellbach | HYDROMOTOR, ESPECIALLY FOR GRIPPER TURNING DEVICE ON EXCAVATORS OR CRANES |
| US4508016A (en) * | 1983-09-09 | 1985-04-02 | Weyer Paul P | Rotary actuated support |
| DE3729049C1 (en) * | 1987-08-31 | 1989-03-30 | Kinshofer Greiftechnik | Hydraulic motor |
-
2003
- 2003-03-03 DE DE10309258A patent/DE10309258B4/en not_active Expired - Fee Related
-
2004
- 2004-03-03 CA CA002532240A patent/CA2532240A1/en not_active Abandoned
- 2004-03-03 US US10/547,886 patent/US20060225311A1/en not_active Abandoned
- 2004-03-03 EP EP04716561A patent/EP1603822A1/en not_active Withdrawn
- 2004-03-03 WO PCT/EP2004/002132 patent/WO2004078631A1/en not_active Ceased
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0429413A1 (en) * | 1989-11-20 | 1991-05-29 | Vanzini, Oddone | An articulation with rotating hydraulic connection, in particular for mobile work machines |
| DE19505585A1 (en) * | 1993-10-20 | 1996-08-22 | Thumm Heinz Oelhydraulik | Slewing mechanism for tool coupled to excavator jib or wheel rim |
| EP1085205A2 (en) * | 1999-09-20 | 2001-03-21 | Heinz Thumm | Hydraulic drive |
| US6435235B1 (en) * | 2000-10-24 | 2002-08-20 | Caterpillar Inc. | Mounting for tree harvester head |
Also Published As
| Publication number | Publication date |
|---|---|
| DE10309258B4 (en) | 2006-10-12 |
| EP1603822A1 (en) | 2005-12-14 |
| DE10309258A1 (en) | 2004-09-23 |
| US20060225311A1 (en) | 2006-10-12 |
| CA2532240A1 (en) | 2005-09-16 |
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