EP0809735B1 - Drehvorrichtung für baggergreifer - Google Patents
Drehvorrichtung für baggergreifer Download PDFInfo
- Publication number
- EP0809735B1 EP0809735B1 EP96902986A EP96902986A EP0809735B1 EP 0809735 B1 EP0809735 B1 EP 0809735B1 EP 96902986 A EP96902986 A EP 96902986A EP 96902986 A EP96902986 A EP 96902986A EP 0809735 B1 EP0809735 B1 EP 0809735B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- bearing
- stator
- rotor
- accordance
- bearings
- 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.)
- Expired - Lifetime
Links
- 230000002706 hydrostatic effect Effects 0.000 claims description 12
- 230000000295 complement effect Effects 0.000 claims description 3
- 239000010720 hydraulic oil Substances 0.000 claims description 2
- 238000005096 rolling process Methods 0.000 claims 4
- 238000009434 installation Methods 0.000 claims 2
- 239000007788 liquid Substances 0.000 claims 1
- 230000005540 biological transmission Effects 0.000 abstract 1
- 238000012423 maintenance Methods 0.000 description 3
- 230000001419 dependent effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000010348 incorporation Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
Images
Classifications
-
- 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
- E02F3/3681—Rotators
-
- 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
-
- 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 rotation one connected to the boom of an excavator or crane Gripper or the like tool with a the cantilever-connected stator, one with the gripper connectable to the stator by means of a bearing arrangement a vertical axis rotatably mounted rotor, with a arranged between stator and rotor, by over two stator connections from the stator, through liquid-tight rotating unions and through one connected to the rotor, if necessary, in a rotationally fixed manner Hydraulic ducts with hydraulic oil that pass through the distributor Actuable hydraulic drive mechanism and with at least two via stator-side connections through the stator and through liquid-tight rotating unions through to and through the rotor hydraulic channels to the rotor-side connections, preferably for hydraulic gripper actuation.
- a device for rotation is already known from DE-A-2 838 346 known.
- a rotating device of this type is also known (EP-B-0 080 670), with the bearing arrangement inside the rotating device is arranged that for their maintenance Stator, rotor and drive mechanism completely must be disassembled. It also results in the known design, a relatively large height with a correspondingly large weight.
- the invention is based on the object the known rotary devices of the beginning specified type to improve that at a compact flat design maintenance especially in the Area of bearing arrangements and wearing parts is simplified.
- the solution according to the invention is based on the idea that the entire bearing assembly is radially outside of the drive mechanism arranged essentially at its height is.
- the bearing assembly be radially outside of the drive mechanism at its level on inner part of the device (stator or rotor) radially outwardly protruding collar and one on the external part of the device (rotor or stator) arranged, encompassing the bearing ring in a form-fitting manner, has radially inwardly open bearing groove, wherein between Bearing ring and bearing groove as roller bearings and / or Plain bearings and / or hydrostatic bearings trained bearing elements are inserted or molded.
- the external device part in the area the bearing groove appropriately formed in two parts.
- An advantageous embodiment of the invention provides before that between the bearing collar and bearing groove two thrust bearings and a radial bearing are arranged, at least one of the thrust bearings as a roller bearing, preferably can be designed as a needle bearing, while the other Thrust bearings as plain bearings or as hydrostatic bearings can be trained.
- Another embodiment provides that between Bearing ring and bearing groove two angular bearings arranged are as roller bearings, preferably as tapered roller bearings or ball bearings can be formed. Basically, it is also possible to use the angular bearings as To design plain bearings or as a hydrostatic bearing.
- a third variant of the invention provides before that the bearing ring and the bearing groove complementary curved bearing surfaces for receiving a plain bearing or have a hydrostatic bearing.
- the Stator has the bearing ring and the rotor has the bearing groove.
- a further relief in the maintenance of the turning device can be achieved in that at least one Part of the from the stator via the rotating unions to the rotor leading hydraulic channels the drive mechanism and the bearing arrangement penetrates centrally and that a in the assembled state of the stator, rotor and drive mechanism from the outside for access at least to some of the rotary unions and / or to Distributors and their seals accessible through a Locking piece lockable central axis assembly opening is provided.
- the assembly opening basically can also be arranged on the stator side , it is advantageous to place them on the gripper side Arrange the front of the rotor.
- the drive mechanism is preferably a hydraulic one Axial or radial piston engine, wherein the bearing rim at the level of the drive piston or -balls is arranged.
- Another embodiment variant provides that the Drive mechanism as a hydraulic rotary vane motor is formed, the bearing rim at the level of Swivel wing is arranged.
- the drive motor as a hydrostatic internal gear motor or Inner rotor is formed, the bearing ring on the height of the motor gear is arranged.
- the turning device shown in the drawing are intended for excavator grapples where high tensile, compressive and moment loads occur. They essentially exist from a with an excavator boom, not shown connectable stator 1, one with the stator via a rotary connection 4 connected rotor 6, on the an excavator grab, not shown, can be attached, and a drive mechanism acting between the stator and rotor 6 8th.
- the rotary connection 4 has in the exemplary embodiments 1 to 5 one at the level of the drive mechanism 8 projecting radially on the stator 1 Bearing ring 40 and one arranged on the rotor, the Bearing ring 40 encompassing a form-fitting, radial to inside open bearing groove 42, between the bearing ring 40 and bearing groove 42 different, as roller bearings, plain bearings or hydrostatic bearings trained bearing elements are inserted or molded.
- an upper axial between bearing ring 40 and bearing groove 42 Needle bearing 44, a radial needle bearing 46 and a Lower axial slide bearing 48 is provided.
- the embodiment 2 is the radial one on the right Needle bearing 46 replaced by a plain bearing 46 ', while in the embodiment variant shown in the left area of FIG. 2 the lower slide bearing 48 by a needle bearing 48 'is replaced.
- FIG Bearing ring 40 and the bearing groove 42 complementary to each other curved bearing surfaces it is also possible in the sense of FIG Bearing ring 40 and the bearing groove 42 complementary to each other curved bearing surfaces to accommodate a to provide correspondingly curved plain bearing 58.
- the Slide bearings 46 ', 48 and 58 can in principle also be used as Hydrostatic bearings are trained.
- the hydraulic channels 65 ', 65 "on the rotor side lead to rotor-side connections 66 ', 66' 'to which, if necessary with the interposition of one with the rotor Screws 67 and driver pin 68 connectable Connection adapter hydraulic lines for gripper actuation can be connected.
- the rotary unions for the Gripper hydraulics are in the embodiments shown by two the stator 1 and the rotor 6 centrally and coaxially penetrating pipe sections 32, 33 are formed, with their ends in the stator side or rotor side Step holes 19 and 69 engage and float there are stored.
- a floating radial distributor 70 is also provided, of the pipe sections 32, 33 of the rotary union 30 is accessed centrally.
- the rotary unions 30 are with their pipe sections 32, 33 and their sealing rings even when assembled Stator, rotor and drive mechanism from the outside forth about a closable by a closure piece 90 Assembly opening 91 accessible.
- the closure piece 90 has an axial bore forming the assembly opening 91 of the rotor can be used liquid-tight Pin 92 on the ring flange 93, screws 94 and driver pins 95 can be attached to the rotor 6.
- On the inside of the closure piece 90 has one open to the interior of the device and coaxial to the axis of rotation Blind hole or stepped bore 69 for receiving the one end of the pipe sections 32, 33. Also points the closure piece 90 the two to the rotor side Connections 66 ', 66 "for the gripper hydraulics leading Channel sections 65 ', 65 ", one of which essentially axially central and the other eccentrically arranged is.
- Figs. 1 and 2 included a drive mechanism designed as an axial piston drive 8, which is a plurality of on one Incorporation of the stator 1 at equal distances from each other arranged axial pressure cylinder 101, in which one piston 102 each and one against the end face of the Piston 102 abutting, through a cylinder opening more or less far reaching ball 103 is arranged are.
- the pistons 102 are on the back with Hydraulic fluid acts on the hydraulic channels 104 enters the impression cylinder 101.
- the Balls 103 lie with their out of the cylinder opening protruding part against that along an incircle of the rotor with undulating cam track 106 axial deflections.
- the cam track determines too the stroke of the pistons 102 at any time.
- Axial piston drive can also be a radial piston drive, a rotary leaf drive or a hydraulic internal gear drive (Inner rotor) as drive mechanism 8 be used.
- the invention refers to a device for rotation one connected to the boom of an excavator or crane Gripper or the like tool.
- the turning device has a stator 1, one on the stator 1 by means of a bearing arrangement 4 about a vertical axis rotatably mounted rotor 6, one between the stator and Hydraulic drive mechanism 8 arranged in the rotor and at least two rotary unions 30 for the gripper actuation on.
- a compact design with less Ensuring height is according to the invention suggested that the entire bearing assembly 4 radially arranged outside the drive mechanism at its level is.
- the bearing arrangement 4 expediently has one protruding radially outward on the stator 1 like a collar Bearing ring 40 and a bearing ring arranged on the rotor 6 40 form-fitting, radially inward open bearing groove 42. Between the bearing ring and the bearing groove are designed as roller bearings and / or plain bearings Bearing elements inserted or molded.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Mining & Mineral Resources (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Rolling Contact Bearings (AREA)
- Earth Drilling (AREA)
Description
- Fig. 1
- einen senkrechten Schnitt durch einen Axialkolbenmotor in Flachbauweise mit statorseitigem Lagerkranz und rotorseitiger Lagernut;
- Fig. 2
- eine Darstellung entsprechend Fig. 1 mit zwei weiteren Lagervarianten;
- Fig. 3 bis 5
- je einen Ausschnitt aus dem Lagerbereich einer Drehvorrichtung entsprechend Fig. 1 und 2 mit verschiedenen Lagervarianten.
Claims (16)
- Vorrichtung für die Drehung eines mit dem Ausleger eines Baggers oder Krans verbundenen Greifers oder dergleichen Werkzeugs mit einem mit dem Ausleger verbindbaren Stator (1), mit einem mit dem Greifer verbindbaren, am Stator (1) mittels einer Lageranordnung (4) um eine vertikale Achse drehbar gelagerten Rotor (6), mit einem zwischen Stator (1) und Rotor (6) angeordneten, über zwei von statorseitigen Anschlüssen (16) aus durch den Stator (1), durch flüssigkeitsdichte Drehdurchführungen (30) und durch einen gegebenenfalls mit dem Rotor (6) drehfest verbundenen Verteiler (70) hindurchgeführte Hydraulikkanäle (16',16",71',71") mit Hydrauliköl beaufschlagbaren hydraulischen Antriebsmechanismus (8), und mit mindestens zwei über statorseitige Anschlüsse (15) durch den Stator (1) und durch flüssigkeitsdichte Drehdurchführungen (30) hindurch zum Rotor (6) und durch diesen hindurch zu rotorseitigen Anschlüssen (66', 66") geführten Hydraulikkanälen (15', 15", 65', 65")vorzugsweise für die hydraulische Greiferbetätigung, dadurch gekennzeichnet, daß die Lageranordnung (4) radial außerhalb des Antriebsmechanismus (8) auf dessen Höhe einen am Stator (1) radial nach außen bundartig überstehenden Lagerkranz (40) und eine am Rotor (6) angeordnete, den Lagerkranz (40) formschlüssig umfassende radial nach innen offene Lagernut (42) aufweist oder umgekehrt, wobei zwischen Lagerkranz (40) und Lagernut (42) als Wälzlager (44, 46, 48') und/oder Gleitlager (46', 48; 58) und/oder als Hydrostatiklager ausgebildete Lagerelemente eingelegt oder eingeformt sind.
- Vorrichtung nach Anspruch 1,
dadurch gekennzeichnet,
daß der Rotor (6) oder der Stator (1) im Bereich der Lagernut (42) zweigeteilt ist. - Vorrichtung nach einem der Ansprüche 1 oder 2, dadurch gekennzeichnet, daß zwischen Lagerkranz (40) und Lagernut (42) zwei Axiallager (44,48) und ein Radiallager (46) angeordnet sind.
- Vorrichtung nach Anspruch 3, dadurch gekennzeichnet, daß zumindest eines der Axiallager (44,48') als Wälzlager, vorzugsweise als Nadellager ausgebildet ist.
- Vorrichtung nach Anspruch 3 oder 4, dadurch gekennzeichnet, daß das Radiallager als Wälzlager, vorzugsweise als radiales Nadellager (46), als Gleitlager (46') oder als Hydrostatiklager ausgebildet ist.
- Vorrichtung nach einem der Ansprüche 3 bis 5, dadurch gekennzeichnet, daß zumindest eines der Axiallager (48) als Gleitlager oder als Hydrostatiklager ausgebildet ist.
- Vorrichtung nach einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, daß zwischen Lagerkranz (40) und Lagernut (42) zwei Schräglager (50,52;54,56) angeordnet sind.
- Vorrichtung nach Anspruch 7, dadurch gekennzeichnet, daß die Schräglager als Wälzlager, vorzugsweise als Kegelrollenlager (50,52) oder als Kugellager (54,56) ausgebildet sind.
- Vorrichtung nach Anspruch 7, dadurch gekennzeichnet, daß die Schräglager als Gleitlager oder als Hydrostatiklager ausgebildet sind.
- Vorrichtung nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß der Lagerkranz (40) und die Lagernut (42) komplementär gekrümmte Lagerflächen zur Aufnahme eines entsprechend gekrümmten Gleitlagers (58) oder eines Hydrostatiklagers aufweisen.
- Vorrichtung nach einem der Ansprüche 1 bis 10, dadurch gekennzeichnet, daß der Stator (1) den Lagerkranz (40) und der Rotor (6) die Lagernut (42) aufweist.
- Vorrichtung nach einem der Ansprüche 1 bis 11, dadurch gekennzeichnet, daß zumindest ein Teil der vom Stator (1) über die Drehdurchführungen (30) zum Rotor (6) führenden Hydraulikkanäle (15',16', 15",16") den Antriebsmechanismus (8) und die Lageranordnung (4) zentral durchsetzt und daß eine im zusammenmontierten Zustand von Stator (1) und Rotor (6) und Antriebsmechanismus (8) von außen her für den Zugriff zumindest zu einem Teil der Drehdurchführungen (30) und/oder zum Verteiler (70) und deren Dichtungen (31,97) zugängliche, durch ein Verschlußstück (90) verschließbare achszentrale Montageöffnung (91) vorgesehen ist.
- Vorrichtung nach Anspruch 12, dadurch gekennzeichnet, daß die Montageöffnung (91) auf der greiferseitigen Stirnseite des Rotors (6) angeordnet ist.
- Vorrichtung nach einem der Ansprüche 1 bis 13, dadurch gekennzeichnet, daß der Antriebsmechanismus als hydraulischer Axial- oder Radialkolbenantrieb ausgebildet ist und daß der Lagerkranz (40) auf der Höhe der Antriebskolben oder -kugeln (102,103) angeordnet ist.
- Vorrichtung nach einem der Ansprüche 1 bis 13, dadurch gekennzeichnet, daß der Antriebsmechanismus als hydraulischer Drehflügelantrieb ausgebildet ist und daß der Lagerkranz (40) auf der Höhe von dessen Drehflügeln angeordnet ist.
- Vorrichtung nach einem der Ansprüche 1 bis 13, dadurch gekennzeichnet, daß der Antriebsmechanismus als hydraulischer Innenzahnradantrieb oder Innengerotor ausgebildet ist, und daß der Lagerkranz (40) auf der Höhe von dessen Antriebsverzahnungen angeordnet ist.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19505585A DE19505585A1 (de) | 1993-10-20 | 1995-02-18 | Drehvorrichtung für Baggergreifer |
DE19505585 | 1995-02-18 | ||
PCT/EP1996/000684 WO1996026326A1 (de) | 1995-02-18 | 1996-02-19 | Drehvorrichtung für baggergreifer |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0809735A1 EP0809735A1 (de) | 1997-12-03 |
EP0809735B1 true EP0809735B1 (de) | 1999-08-25 |
Family
ID=7754376
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP96902986A Expired - Lifetime EP0809735B1 (de) | 1995-02-18 | 1996-02-19 | Drehvorrichtung für baggergreifer |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP0809735B1 (de) |
AT (1) | ATE183793T1 (de) |
WO (1) | WO1996026326A1 (de) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE202004019909U1 (de) * | 2004-12-23 | 2006-04-27 | Heinz Thumm Ölhydraulische Antriebe GmbH | Drehvorrichtung für Lastaufnahmemittel |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
SE520498E8 (sv) | 2001-11-26 | 2015-10-20 | Komatsu Forest Ab | Anordning för upphängning av ett vridbart arbetsredskap |
EP1939133B1 (de) | 2006-12-27 | 2012-04-25 | Caterpillar Inc. | Drehteil für eine Strömungsmaschine und Rotator damit |
ATE513125T1 (de) | 2008-08-29 | 2011-07-15 | Baltrotors Sia | Kolbendrehmaschine |
DE102009019660A1 (de) * | 2009-04-30 | 2010-11-04 | Heinz Thumm | Drehvorrichtung für Lastaufnahmemittel, wie Baggergreifer od. dgl. |
DE202010010857U1 (de) * | 2010-07-30 | 2010-10-21 | MTS Gesellschaft für Maschinentechnik und Sonderbauten mbH | Fräseinrichtung |
SE539110C2 (sv) * | 2013-04-10 | 2017-04-11 | Indexator Rotator Sys Ab | Svivelanordning vid en rotator |
WO2015155627A1 (en) * | 2014-04-10 | 2015-10-15 | Ala Officine S.P.A. | Multipath fluidic rotary distributor |
CN113134727A (zh) * | 2021-05-28 | 2021-07-20 | 安徽巨一科技股份有限公司 | 一种带浮动功能的合箱抓具 |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2357765A1 (fr) * | 1976-07-05 | 1978-02-03 | Poclain Sa | Verin a tige de piston en deux parties |
DE2838428C2 (de) * | 1978-09-02 | 1984-05-24 | Fa. Heinz Thumm, 7012 Fellbach | Drehvorrichtung für hängende Lasten |
DE2838346C2 (de) * | 1978-09-02 | 1985-02-14 | Fa. Heinz Thumm, 7012 Fellbach | Drehvorrichtung für einen Baggergreifer o.dgl. |
DE3132489A1 (de) * | 1981-08-17 | 1983-03-03 | Freund, Pierre, 8702 Veitshöchheim | Hydraulikmotor fuer den drehantrieb eines bagger- und krangreifers |
-
1996
- 1996-02-19 EP EP96902986A patent/EP0809735B1/de not_active Expired - Lifetime
- 1996-02-19 WO PCT/EP1996/000684 patent/WO1996026326A1/de active IP Right Grant
- 1996-02-19 AT AT96902986T patent/ATE183793T1/de not_active IP Right Cessation
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE202004019909U1 (de) * | 2004-12-23 | 2006-04-27 | Heinz Thumm Ölhydraulische Antriebe GmbH | Drehvorrichtung für Lastaufnahmemittel |
EP1674420A1 (de) | 2004-12-23 | 2006-06-28 | Heinz Thumm Oelhydraulische Antriebe GmbH | Drehvorrichtung für Lastaufnahmemittel |
Also Published As
Publication number | Publication date |
---|---|
WO1996026326A1 (de) | 1996-08-29 |
ATE183793T1 (de) | 1999-09-15 |
EP0809735A1 (de) | 1997-12-03 |
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