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DE7004006U - HYDROSTATIC BEARING. - Google Patents

HYDROSTATIC BEARING.

Info

Publication number
DE7004006U
DE7004006U DE7004006U DE7004006U DE7004006U DE 7004006 U DE7004006 U DE 7004006U DE 7004006 U DE7004006 U DE 7004006U DE 7004006 U DE7004006 U DE 7004006U DE 7004006 U DE7004006 U DE 7004006U
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.)
Expired
Application number
DE7004006U
Other languages
German (de)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
SKF Industrie SpA
Original Assignee
RIV Officine di Villar Perosa SpA
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by RIV Officine di Villar Perosa SpA filed Critical RIV Officine di Villar Perosa SpA
Publication of DE7004006U publication Critical patent/DE7004006U/en
Expired legal-status Critical Current

Links

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

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, 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 urucköl verborgt vrerden, verhindert die hydraulische Drossel, iaß oei Belastung das Öl in die unßelastete Zone abfließt und in der belasteten Zone der Schmier film zusammenbricht. Bei einer Versorgung mit konstantein Öldruck hat die hydraulische Drossel darüber.hinaus die Aufgabe, eine ganz bestimmte Steifigkeit des Lagers zu gewährleisten.When several storage pockets are borrowed from a single pump with urucköl the hydraulic throttle prevents the oil in the unloaded zone flows off and the lubricating film collapses in the loaded zone. With a constant supply of oil pressure, the hydraulic Choke 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 01-zuführungsleitungen eingebaut.According to the prior art, hydraulic throttles consist of orifices or from capillaries of various lengths. These chokes are in the 01-supply lines built-in.

Die Kapillardrosseln werden aus Instandhaltungsgründen nicht unmittelbar an ■ der Mündung der ÖlzufUhrung in die Stützquelle eingesetzt, sondern meistenteils an solchen Stellen, die gut zu erreichen sind. Diese Anordnung der Kapillardrossel bringt viele Nachteile mit sich; einer davon is^t der verhältnismäßig große Abstand zwischen Kapillardrossel und Stützquelle, ein anderer ist, daß ein erhebliches Zwischenölvolumen geschaffen wird, welches die Steifigkeit des Systems verringert und Änderungen der Charakteristika hervorruft, falls zwischen der Druckzona und der Kapillardrossel Temperatur-Bchwankungen aufgrund innerer oder äußerer Einflüsse auftreten.For maintenance reasons, the capillary chokes are not directly connected to ■ the mouth of the oil supply used in the support source, but mostly in such places that are easy to reach. This arrangement of the capillary throttle has many disadvantages; one of them is proportionate large distance between capillary throttle and support source, another is that a considerable intermediate oil volume is created, which the rigidity of the system decreases and changes in characteristics causes temperature fluctuations between the pressure zone and the capillary throttle occur due to internal or external influences.

\l 2 \ l 2

k___ : : Ik___:: I.

Blatt - 2 -Page 2 -

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.

Diese Aufgabe wird erfindungsgemäß dadurch gelöst, daß das hydrostatische Lager mit Drosseln für den Zufluß versehen ist, die unmittelbar am Boden der Stützquelle befestigt Find.According to the invention, this object is achieved in that the hydrostatic Storage is provided with throttles for the inflow, which Find attached directly to the bottom of the support source.

( Nach weiteren Merkmalen der Erfindung bestehen die D-os^eln für den Zufluß(According to further features of the invention, the D-os ^ eln exist for the inflow

aus einer schraubenförmig verwundenen Kapillardroscel, deren eines Ende in die Druckölzuführungsleitung mündet und deren anderes Ende im Boden der Stütsquelle befestigt ist, wob<*i die Drossel von einem Schraubstöpsel getragenfrom a helically twisted capillary roscel, one end of which is in the pressure oil supply line opens and the other end in the bottom of the Stütsquelle is attached, the throttle being carried by a screw plug

/ wird, der in eine Bohrung im Boden der Stützquelle eingeschraubt ist,/ which is screwed into a hole in the bottom of the support source,

I *I *

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 \ ist der feststehende Teil einer Maschine oder dergleichen bezeichnet, auf welohem ein Teil 2 durch Gleitschuhe hydrostatisch gelagert ist.With \ the stationary part of a machine or the like is referred to, on which a part 2 is hydrostatically supported by sliding shoes.

^ In eine der Stützquellen 5 dieser Gleitschuhe gelangt das Drucköl durch die^ In one of the sources of support 5 of these sliding shoes, the pressure oil passes through the

Zuführungsleitungen 4 und 5. In der Zuführungsleitung 5 ist die hydraulische Drossel 6 befestigt, die aus einem sehraubenförrnig verwundenem Kapillarröhrchen besteht. Des~en eines Ende 7 ragt unmittelbar in die Zuführungsleitung hinein, das andere Ende 8, das geradlinig und koaxial mit der Stützquelle 5 verläuft, ist im Boden der Stützquelle 3 befestigt.Feed lines 4 and 5. In the feed line 5 is the hydraulic one Throttle 6 attached, which consists of a very dove-shaped twisted capillary tube consists. One end 7 of which protrudes directly into the supply line inside, the other end 8, which is straight and coaxial with the support source 5, 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 einer Bohrung befestigt ist. Die Bohrung 11 mündet in den Boden der Stützquelle j5 und verläuft zu dieser koaxial; sie verbindet die Stützquelle J mit der Zuführungs-! The hydraulic throttle 6 is at its straight 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 j5 and runs coaxial to this; it connects the support source J with the supply

708400627.1.72708400627.1.72

Blatt - 3 -Sheet - 3 -

leitung 5 für das Druoköl. Am Ende des Gewindes 10 befindet sich in der Bohrung 11 eine umlaufende Rille 12, die eine Dichtung 13 aufnimmt.line 5 for the Druoköl. 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 3· - .The rectilinear part 8 of the hydraulic throttle 6 is complete inserted into the screw plug 9 and opens centrally by means of a bore 14 into the support source 3 · -.

Dank dieser Anordnung der schraubenförmig verwundenen Kapillare wird erreicht, daß die hydraulische Drossel 6 im unmittelbaren Kontakt mit der/ Stützquelle 3 steht. Darüber.hinaus ist es sehr einfach, Wartung, Reparatur oder Austausch durchzuführen, weil der Schraubstöpsel 9 leicht entfernt oder die sohraubenfÖrmig verwundene Drossel 6 mühelos herausgezogen werden kann. Thanks to this arrangement of the helically twisted capillary it is achieved that the hydraulic throttle 6 is in direct contact with the / support source 3. Furthermore, it is very easy to carry out maintenance, repair or replacement because the screw plug 9 can be easily removed or the throttle 6 twisted in the shape of a screw can be easily pulled out.

Claims (4)

PatentansprücheClaims 1. Hydrostatisches Lager, dadurch gekennzeichnet, daß dieses mit Drosseln (6) für den Zufluß der Druckölversorgung versehen ist, die unmittelbar am Boden der Stützquelle (5) befestigt sind. ·1. Hydrostatic bearing, characterized in that it is equipped with throttles (6) is provided for the inflow of the pressure oil supply, which are attached directly to the bottom of the support source (5). · 2. Hydrostatisches Lager nach Anspruch 1, dadurch gekennzeichnet, daß die Drosseln (6) für den Zufluß aus einer schraubenförmig verwundenen Kapallardrossel bestehen.2. Hydrostatic bearing according to claim 1, characterized in that the Throttles (6) for the inflow consist of a helically twisted capallary throttle. Jo Hydrostatisches Lager nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß das eine Ende (7) der Drossel (β) in die Druokölzuführunssleituns mündet und das andere Ende (8) im Boden der Stützquelle (j5) befestigt ist.Jo hydrostatic bearing according to claim 1 or 2, characterized in that one end (7) of the throttle (β) opens into the Druokölzuführunssleituns and the other end (8) is fixed in the bottom of the support source (j5). 4. Hydrostatisches Lager nach Anspruch 1, 2 oder ^, dadurch gekennzeichnet,4. Hydrostatic bearing according to claim 1, 2 or ^, characterized in that daß die Drosseln (6) von einem Schraubstöpsel (9) getragen werden, der Ij ; in eine Bohrung (11) im Boden der Stützquelle (3) eingeschraubt ist.that the throttles (6) are carried by a screw plug (9), the Ij ; is screwed into a bore (11) in the bottom of the support source (3).
DE7004006U 1969-02-08 1970-02-05 HYDROSTATIC BEARING. Expired DE7004006U (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT5050869 1969-02-08

Publications (1)

Publication Number Publication Date
DE7004006U true DE7004006U (en) 1972-01-27

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 Before (1)

Application Number Title Priority Date Filing Date
DE19702005285 Pending DE2005285A1 (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)

* Cited by examiner, † Cited by third party
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

Also Published As

Publication number Publication date
GB1248724A (en) 1971-10-06
DE2005285A1 (en) 1971-02-18
FR2032786A5 (en) 1970-11-27

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