DE2005285A1 - Hydrostatic bearing - Google Patents
Hydrostatic bearingInfo
- Publication number
- DE2005285A1 DE2005285A1 DE19702005285 DE2005285A DE2005285A1 DE 2005285 A1 DE2005285 A1 DE 2005285A1 DE 19702005285 DE19702005285 DE 19702005285 DE 2005285 A DE2005285 A DE 2005285A DE 2005285 A1 DE2005285 A1 DE 2005285A1
- Authority
- DE
- Germany
- Prior art keywords
- hydrostatic bearing
- throttle
- support source
- throttles
- hydraulic
- 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.)
- Pending
Links
- 230000002706 hydrostatic effect Effects 0.000 title claims description 10
- 238000012423 maintenance Methods 0.000 description 2
- 101100286286 Dictyostelium discoideum ipi gene Proteins 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000001050 lubricating effect Effects 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C32/00—Bearings not otherwise provided for
- F16C32/06—Bearings not otherwise provided for with moving member supported by a fluid cushion formed, at least to a large extent, otherwise than by movement of the shaft, e.g. hydrostatic air-cushion bearings
- F16C32/0603—Bearings not otherwise provided for with moving member supported by a fluid cushion formed, at least to a large extent, otherwise than by movement of the shaft, e.g. hydrostatic air-cushion bearings supported by a gas cushion, e.g. an air cushion
- F16C32/0614—Bearings not otherwise provided for with moving member supported by a fluid cushion formed, at least to a large extent, otherwise than by movement of the shaft, e.g. hydrostatic air-cushion bearings supported by a gas cushion, e.g. an air cushion the gas being supplied under pressure, e.g. aerostatic bearings
- F16C32/0622—Bearings not otherwise provided for with moving member supported by a fluid cushion formed, at least to a large extent, otherwise than by movement of the shaft, e.g. hydrostatic air-cushion bearings supported by a gas cushion, e.g. an air cushion the gas being supplied under pressure, e.g. aerostatic bearings via nozzles, restrictors
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q1/00—Members which are comprised in the general build-up of a form of machine, particularly relatively large fixed members
- B23Q1/25—Movable or adjustable work or tool supports
- B23Q1/26—Movable or adjustable work or tool supports characterised by constructional features relating to the co-operation of relatively movable members; Means for preventing relative movement of such members
- B23Q1/38—Movable or adjustable work or tool supports characterised by constructional features relating to the co-operation of relatively movable members; Means for preventing relative movement of such members using fluid bearings or fluid cushion supports
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C29/00—Bearings for parts moving only linearly
- F16C29/02—Sliding-contact bearings
- F16C29/025—Hydrostatic or aerostatic
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C2322/00—Apparatus used in shaping articles
- F16C2322/39—General buildup of machine tools, e.g. spindles, slides, actuators
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Magnetic Bearings And Hydrostatic Bearings (AREA)
Description
. Patentanwälte. Patent attorneys
RIV-SKP Officine dl Villa* Perosa, DIpI.Ing.H.Weickmann, Dipl.Phys. Dr.K. Fincke Torino, Tia Mazzi'ni *&'■■■ RIV-SKP Officine dl Villa * Perosa, DIpI.Ing.H.Weickmann, Dipl.Phys. Dr.K. Fincke Torino, Tia Mazzi'ni * &'■■■ UIpI, Ing. F. A. WBinkmaiuyni^Jptwm B. H über UIp I, Ing.FA WBinkmaiuyni ^ Jptwm B. H over
8 VOnchen 27, MShlstr. 228 from Munich 27, MShlstr. 22nd
. - ■ "· . ' . -■'■. / ■ ' Hydrostatisches Lager ·'"■■■ ·. - ■ "·. '. - ■' ■. / ■ ' Hydrostatic bearing · '"■■■ ·
Die Erfindung betrifft ein hydrostatisches Lager, insbesondere die Ausbildung der hydraulischen Drossel. .The invention relates to a hydrostatic bearing, in particular to training the hydraulic throttle. .
Es ist bekannt, bei einem hydrostatischen Lager zwischen dem Druckerzeuger, allgemein eine Verdrängerpumpe, und der Stützquelle eine hydraulische Drossel anzuordnen.It is known that in a hydrostatic bearing between the pressure generator, generally a positive displacement pump, and the support source a hydraulic one Arrange throttle.
Wenn mehrere Lagertaschen von einer einzigen Pumpe mit Drucköl versorgt werden, verhindert die hydraulische Drossel, daß-bei Belastung das Öl in die unbelastete Zone abfließt und In der belasteten Zone der Schmierfilm zusammenbricht. Bei einer Versorgung mit konstantem Öldruck hat die hydraulische Drossel darüber hinaus die Aufgabe, eine ganz bestimmte Steifigkeit des Lagers zu gewährleisten.When several storage pockets are supplied with pressurized oil from a single pump the hydraulic throttle prevents the oil in the unloaded zone flows off and the lubricating film collapses in the loaded zone. With a supply of constant oil pressure, the hydraulic throttle also has the task of maintaining a very specific rigidity of the To ensure storage.
Nach dem Stand der Technik bestehen hydraulische Drosseln aus Blenden oder aus Kapillaren der verschiedensten Längen« Diese Drosseln werden in die Öl-Zuführungsleitungen eingebaut. D According to the state of the art, hydraulic throttles consist of orifices or capillaries of various lengths. These throttles are built into the oil supply lines. D.
- ■■ ν ■■■ ■'' '■:. : ■ '- ■■ ν ■■■ ■ '''■ :. : ■ '
Die Kapillardrosseln werden aus Instandhaltungsgründen nicht unmittelbar an der Mündung der Ölzuführung in die Stützquelle eingesetzt, sondern meistenteils an solohen Stellen, die gut zu erreichen sind. Diese Anordnung der Kapillardrossel bringt viele Nachteile mit sich; einer davon ist der verhältnismäßig große Abstand zwischen Kapillardrossel und Stützquelle, ein anderer ist, daß ein erhebliohes Zwisohenölvolumen geschaffen wird, welches die Steifigkeit des Systems verringert und Änderungen der Charakteristika hervorruft, falls zwischen der Druokzone und der Kapillardrossel Temperatur-Schwankungen aufgrund innerer oder äußerer Einflüsse auftreten* , ■-■■■■■ ' ' - ι ' For maintenance reasons, the capillary throttles are not used directly at the outlet of the oil supply to the support source, but mostly in single locations that are easy to reach. This arrangement of the capillary throttle has many disadvantages; One of them is the relatively large distance between the capillary throttle and the support source, another is that a considerable volume of intermediate oil is created, which reduces the rigidity of the system and causes changes in the characteristics if temperature fluctuations between the pressure zone and the capillary throttle due to internal or external influences occur *, ■ - ■■■■■ '' - ι '
109808/1782109808/1782
Blatt - ■€ -Sheet - ■ € -
Der vorliegenden Erfindung liegt die Aufgabe zugrunde, die geschilderten Nachteile zu vermeiden und ein hydrostatisches Lager zu schaffen, bei dem die Kapillardrossel gut zugänglich und einfach zu warten oder auszutauschen ist.The present invention is based on the object described To avoid disadvantages and to create a hydrostatic bearing in which the capillary throttle is easily accessible and easy to maintain or replace is.
Diese Aufgabe wird erfindungsgemäß dadurch gelöst, daß das hydrostatische Lager mit Drosseln für den Zufluß versehen ist, die unmittelbar am Boden der Stützquelle befestigt sind.According to the invention, this object is achieved in that the hydrostatic Storage is provided with throttles for the inflow, which are attached directly to the bottom of the support source.
Wk Nach weiteren Merlanalen der Erfindung bestehen die Drosseln für den Zufluß aus einer schraubenförmig verwundenen Kapillardrossel, deren eines Ende in die Druokölzuführungsleitung mündet und deren anderes Ende im Boden der Stützquelle befestigt ist, wobei die Drossel von einem Schraubstöpsel getragen wird, der in eine Bohrung im Boden der Stützquelle eingeschraubt ist. Wk According to further Merlanalen of the invention, the throttles for the inflow consist of a helically twisted capillary throttle, one end of which opens into the Druokölzuführungsleitung and the other end is fixed in the bottom of the support source, the throttle being carried by a screw plug which is inserted into a hole in the Bottom of the support source is screwed.
Weitere Vorteile werden anhand der nachfolgenden Beschreibung geschildert, die ein Ausführungsbeispiel des erfindungsgemäßen Lagers im Querschnitt zeigt.Further advantages are described on the basis of the following description, which shows an embodiment of the bearing according to the invention in cross section.
Mit 1 ist der feststehende Teil einer Maschine oder dergleichen bezeichnet, \ auf welchem ein Teil 2 durch Gleitschuhe hydrostatisch gelagert ist.With 1 the fixed part of a machine or the like is referred to, \ on which a part 2 is hydrostatically supported by sliding shoes.
W Ih eine der Stützquellen 3 dieser Gleitschuhe gelangt das DruokÖl durch die Zuführungsleitungen 4 und 5. In der Zuführungsleitung 5 ist die hydraulische W Ih one of the support sources 3 of these sliding shoes, the DruokÖl passes through the supply lines 4 and 5. In the supply line 5 is the hydraulic one
Drossel 6 befestigt, die aus einem schraubenförmig verwundenem Kapillarröhrchen besteht. Dessen eines Ende 7 ragt unmittelbar in die Zuführungsleitung hinein, das andere Ende 8, das geradlinig und koaxial mit der Stützquelle 3 verläuft, ist im Boden der Stützquelle 3 befestigt.Throttle 6 attached, which consists of a helically twisted capillary tube consists. One end 7 of which protrudes directly into the supply line inside, the other end 8, which runs in a straight line and coaxially with the support source 3, is fixed in the bottom of the support source 3.
Die hydraulische Drossel 6 ist an ihrem geradlinig verlaufenden Ende 8 in einem Schraubstöpsel 9 gehalten, der über ein Gewinde 10 in eii^er Bohrung befestigt ist. Die Bohrung 11 mündet in den Boden der Stützquelle 3 und verläuft zu dieser koaxial; sie verbindet die Stützquelle 3 mit der Zuführungs-The hydraulic throttle 6 is at its rectilinear end 8 in a screw plug 9 held, which has a thread 10 in a bore is attached. The bore 11 opens into the bottom of the support source 3 and runs coaxial to this; it connects the support source 3 with the supply
BADBATH
1 09808/?7821 09808 /? 782
Blatt ~ JT - Sheet ~ JT -
leitung 5 für das Drucköl. Am Ende des Gewindes 10 befindet sich in der Bohrung 11 eine umlaufende Rille 12, die eine Dichtung 13 aufnimmt.line 5 for the pressure oil. At the end of the thread 10 is located in the Bore 11 has a circumferential groove 12 which receives a seal 13.
Der geradlinig verlaufende Teil 8 der hydraulischen Drossel 6 ist vollständig in den Schraubstöpsel 9 eingefügt und mündet zentral mittels einer Bohrung 14 in die Stützquelle J>, The rectilinear part 8 of the hydraulic throttle 6 is completely inserted into the screw plug 9 and opens centrally by means of a bore 14 into the source of support J>,
Dank dieser Anordnung der schraubenförmig verwundenen Kapillare wird er~ reicht, daß die hydraulische Drossel 6 im unmittelbaren Kontakt mit der Stützquelle 3 steht. Darüber hinaus ist es sehr einfaoh. Wartung, Reparatur oder Austausch durchzuführen, weil der Schraubstöpsel 9 leicht entfernt oder die schraubenförmig verwundene Drossel 6 mühelos herausgezogen werden kann.Thanks to this arrangement of the helically twisted capillary it becomes ~ enough that the hydraulic throttle 6 is in direct contact with the Support source 3 is. In addition, it is very simple. Maintenance, repair or to carry out replacement because the screw plug 9 is easily removed or the helically twisted throttle 6 can be easily pulled out can.
BAD OBiGtNALBAD OBiGtNAL
109808/1782109808/1782
Claims (4)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| IT5050869 | 1969-02-08 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE2005285A1 true DE2005285A1 (en) | 1971-02-18 |
Family
ID=11273162
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE19702005285 Pending DE2005285A1 (en) | 1969-02-08 | 1970-02-05 | Hydrostatic bearing |
| DE7004006U Expired DE7004006U (en) | 1969-02-08 | 1970-02-05 | HYDROSTATIC BEARING. |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE7004006U Expired DE7004006U (en) | 1969-02-08 | 1970-02-05 | HYDROSTATIC BEARING. |
Country Status (3)
| Country | Link |
|---|---|
| DE (2) | DE2005285A1 (en) |
| FR (1) | FR2032786A5 (en) |
| GB (1) | GB1248724A (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104482046B (en) * | 2014-11-26 | 2017-01-25 | 广东工业大学 | Easily-adjusting and easily-measuring high-precision closed type constant-pressure static-pressure guide rail throttling device |
| IT201900012195A1 (en) * | 2019-07-17 | 2021-01-17 | Pama Spa | Method for the suppression of the "chatter" phenomenon in a machine tool |
-
1970
- 1970-02-02 GB GB4877/70A patent/GB1248724A/en not_active Expired
- 1970-02-05 DE DE19702005285 patent/DE2005285A1/en active Pending
- 1970-02-05 DE DE7004006U patent/DE7004006U/en not_active Expired
- 1970-02-06 FR FR7004273A patent/FR2032786A5/fr not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| DE7004006U (en) | 1972-01-27 |
| GB1248724A (en) | 1971-10-06 |
| FR2032786A5 (en) | 1970-11-27 |
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