DE7201256U - Arrangement for storage - Google Patents
Arrangement for storageInfo
- Publication number
- DE7201256U DE7201256U DE7201256U DE7201256DU DE7201256U DE 7201256 U DE7201256 U DE 7201256U DE 7201256 U DE7201256 U DE 7201256U DE 7201256D U DE7201256D U DE 7201256DU DE 7201256 U DE7201256 U DE 7201256U
- Authority
- DE
- Germany
- Prior art keywords
- sleeve
- arrangement
- bearings
- oil
- storage
- 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
Links
- 238000013016 damping Methods 0.000 claims description 11
- 230000004323 axial length Effects 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 238000003754 machining Methods 0.000 description 2
- 230000018109 developmental process Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 239000000725 suspension Substances 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
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
- F16F15/02—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems
- F16F15/023—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using fluid means
- F16F15/0237—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using fluid means involving squeeze-film damping
-
- 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
- B23Q1/70—Stationary or movable members for carrying working-spindles for attachment of tools or work
-
- 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
- B23Q11/00—Accessories fitted to machine tools for keeping tools or parts of the machine in good working condition or for cooling work; Safety devices specially combined with or arranged in, or specially adapted for use in connection with, machine tools
- B23Q11/0032—Arrangements for preventing or isolating vibrations in parts of the machine
-
- 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
- F16C19/00—Bearings with rolling contact, for exclusively rotary movement
- F16C19/54—Systems consisting of a plurality of bearings with rolling friction
-
- 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
- F16C27/00—Elastic or yielding bearings or bearing supports, for exclusively rotary movement
- F16C27/04—Ball or roller bearings, e.g. with resilient rolling bodies
- F16C27/045—Ball or roller bearings, e.g. with resilient rolling bodies with a fluid film, e.g. squeeze film damping
-
- 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
- F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
- F16C33/30—Parts of ball or roller bearings
- F16C33/66—Special parts or details in view of lubrication
- F16C33/6637—Special parts or details in view of lubrication with liquid lubricant
- F16C33/6659—Details of supply of the liquid to the bearing, e.g. passages or nozzles
-
- 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
- F16C21/00—Combinations of sliding-contact bearings with ball or roller bearings, for exclusively rotary movement
-
- 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)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Aviation & Aerospace Engineering (AREA)
- Support Of The Bearing (AREA)
- Machine Tool Units (AREA)
Description
Die Neuerung betrifft eine Anordnung zur Lagerung von Achsen oder Wellen In Gehäusen, Insbesondere eine Spindellagerung für Werkzeugmaschinen.The innovation relates to an arrangement for mounting axles or shafts In Housings, in particular a spindle bearing for machine tools.
Es sind Lagerungen bekanntgeworden, bei denen zum axialen, Festlegen der Wellenscheiben bzw. Innenringe von Wälzlagern auf einer Welle StufenhUlsen verwendet werden. Mit diesen StufenhUlsen, die In der SKF-Veröffentlichung WIM 15 ojk beschrieben und dargestellt sind, werden PreBverbände hergeetdLt, die mit Druck-(Sl ein- und ausgebaut werden können. Dadurch, daß zur axialen Fixierung der Lager keine Muttern verwendet werden, verursacht der verband auch keine Spannungen, die die Lauf genaulgkelt der Welle vermindern.Bearings have become known in which step sleeves are used to axially fix the shaft washers or inner rings of roller bearings on a shaft. With these step sleeves, which are described and shown in the SKF publication WIM 15 ojk, PreBverbände are produced that can be installed and removed with pressure (S1. Because no nuts are used to axially fix the bearings, the There were also no tensions that would reduce the running of the shaft.
Insbesondere bei Spindellagerungen für Werkzeugmaschinen, die zur Feinbearbeitung dienen sollen, 1st man bestrebt. Im Interesse der Bearbeitungsgenauigkeit eine gute Dämpfung zu erzielen. Hierüber gibt Jedoch die oben zitierte Veröffentlichung keine Auskunft.Especially with spindle bearings for machine tools that are used for fine machining should serve, one strives. In the interests of machining accuracy a to achieve good cushioning. However, the publication cited above gives information on this no Information.
Daneben 1st es Im Werkzeugmaschinenbau bekannt, zur Dämpfung der Schwingungen von Werkzeugmaschinenspindeln zwischen den Wälzlagern mit Öl beaufschlagte Dämpfungabüchsen anzubringen. Eine derartige zusätzliche DämpfungsbOohse 1st Jedoch In allen den Fällen nachteilig, in denen die Forderung nach sehr kurser axialer Baulänge der Lagerung besteht.It is also known in machine tool construction to dampen vibrations exposed to oil from machine tool spindles between the roller bearings To attach damping bushes. Such an additional damping sleeve is However, disadvantageous in all cases in which the requirement for very courses axial length of the storage.
Der Neuerung liegt die Aufgabe zugrunde, eine Anordnung zur Lagerung von Achsen oder Wellen In Gehäusen zu schaffen, bei der sowohl eloe gute Dämpfung als auch eine kurze axiale Baulänge verwirklicht 1st.The innovation is based on the task of an arrangement for the storage of axles or waves in housings to create both eloe and good attenuation a short axial length is achieved.
Blatt - 2 -Page 2 -
Diese Aufgabe wird bei einer Anordnung der eingangs genannten Art gelöst duroh eine als StufenhUlse ausgebildete, ölbeaufschlagte Dämpfungsbüchse.This object is achieved with an arrangement of the type mentioned at the outset through an oil-loaded damping sleeve designed as a stepped sleeve.
Der Vorteil der Neuerung besteht vor allem darin, daß die zur axialen Festlegung dienende, an sich bekannte StufenhUlse die zusätzliche Funktion der Dämpfung übernimmt. Auf diese Weise ist eine Lagerungskonstruktion möglich, die in axialer Richtung wenig Platz beansprucht. Dadurch, daß eine zusätzliche StufenhUlse zur axialen Befestigung durch die Neuerung eingespart wird, kann die als DämpfungsbUchse dienende StufenhUlse an der Stelle der größten Schwingungsamplitude angebracht werden; bei zweiseitig gelagerten Spindeln, wie sie beispielsweise für Werkzeugmaschinen in Betracht kommen, liegt diese Stelle etwa in der Mitte zwischen den beiden Lagern. Bei steifen Lagern mit geringer Federung müssen die Lagerabstände zur optimalen Auslegung so kurz gewählt werden, daß die gesonderte Anbringung einer DämpfungsbUchse nicht mehr möglich ist. In diesen Fällen bringt die Neuerung wesentliche Vorteile, weil die StufenhUlse selbst als DämpfungsbUchse dient.The main advantage of the innovation is that the axial fixing Serving, well-known step sleeve the additional function of the Attenuation takes over. In this way a storage construction is possible, which takes up little space in the axial direction. Due to the fact that an additional step sleeve for axial fastening is saved by the innovation, the step sleeve serving as a damping sleeve can replace the largest one Vibration amplitude are attached; in the case of spindles mounted on two sides, such as those used for machine tools, for example, this is the case Place about halfway between the two bearings. In the case of rigid bearings with little suspension, the bearing distances must be so short for optimal design be chosen so that the separate attachment of a damping sleeve is no longer possible. In these cases, the innovation has significant advantages, because the step sleeve itself serves as a damping sleeve.
In Weiterbildung der Neuerung weist die StufenhUlse am Außenumfang eine durch an beiden Enden vorgesehene Kragen gebildete, ringförmige Vertiefungen auf.In a further development of the innovation, the stepped sleeve has a through on the outer circumference on both ends provided collars formed, annular depressions.
Anhand eines AusfUhrungsbeispieles soll die Neuerung im folgenden erläutert werden.The innovation is explained below using an exemplary embodiment will.
In der Zeichnung ist ein Längsschnitt durch eine Spindellagerung für eine Werkzeugmaschine dargestellt. An- und abtriebsseitig ist die Spindel 1 durch zweireihige Zylinderrollenlager 2 in einem Gehäuse 3 gelagert. Zur Aufnahme von Axialkräften dient ein Axial-Schrägkugellager K. Die axiale Festlegung der beiden abtriebsseitigen Lager wird von einer StufenhUlse 5 übernommen, die auf der Spindel 1 durch eine Preßpassung befestigt ist. Über den Ein- und Ausbau der StufenhUlse 5 sowie deren Vorteile gibt die eingangs genannte Veröffentlichung genaue Auskunft, so daß auf die Funktion der StufenhUlse 5 hier nicht näher eingegangen zu werden braucht.The drawing shows a longitudinal section through a spindle bearing for a machine tool. On the input and output sides, the spindle 1 is supported by double-row cylindrical roller bearings 2 in a housing 3. An axial angular contact ball bearing K serves to absorb axial forces. The axial fixing of the two bearings on the output side is taken over by a stepped sleeve 5 which is fastened to the spindle 1 by a press fit. The aforementioned publication provides precise information about the installation and removal of the step sleeve 5 and its advantages, so that the function of the step sleeve 5 does not need to be discussed in more detail here.
Blatt - 3 -Sheet - 3 -
Blatt - 3 -Sheet - 3 -
ÖlzufUhrbohrungen 6, die im Gehäuse 3 vorgesehen sind, führen zu den drei Wälzlagern und dienen zu deren Schmierung. In das Gehäuse 3 eingearbeitete Kanäle 7 sind für den RUcklauf des Öles bestimmt. Eine weitere, in das Gehäuse 3 eingearbeitete Bohrung 8 führt in radialer Richtung auf die Hantelfläche der Stufenhülse 5, Die Mantelfläche der StufenhUlse 5 hat nur einen sehr geringen Abstand zur Bohrungsfläche des Gehäuses 3 und weist an ihren Enden Je einen Kragen 9 auf, so daß. zwischen diesen beiden Kragen 9 auf dem Umfang eine Vertiefung Io gebildet wird.Oil supply bores 6, which are provided in the housing 3, lead to the three rolling bearings and are used to lubricate them. In the housing 3 incorporated channels 7 are intended for the return of the oil. A further incorporated in the housing 3 hole 8 leads in radial direction on the bar surface of the stepped sleeve 5, the outer surface of StufenhUlse 5 has only a very small distance from the bore surface of the housing 3 and has each of its ends a collar 9, so that . a recess Io is formed between these two collars 9 on the circumference.
Durch die Bohrung 8 wird während der Rotation der Spindel 1 ständig Öl zugeführt, so daS die StufenhUlse 5 als Gleitlager wirkt und die Funktion einer DämpfungsbUchse Übernimmt. Das öl, das duroh die Bohrung 8 mit sehr geringem Druck in die ringförmige Vertiefung Io geleitet wird, wirkt hler als Dämpfungsmedium; duroh die Spalte zwischen dem Kragen 9 und der Bohrung des Gehäuses 3 fließt das öl seitlich wieder ab und gelangt zu den Kanälen 7·Oil is constantly supplied through the bore 8 during the rotation of the spindle 1, so that the step sleeve 5 acts as a slide bearing and has the function of a Damping sleeve takes over. The oil that duroh the hole 8 with very little Pressure is passed into the annular recess Io, acts as a damping medium; duroh the gap between the collar 9 and the bore of the housing 3 the oil flows off laterally and reaches the channels 7
Die Vorteile der dargestellten und eben erläuterten Spindellagerung für Werkzeugmaschinen bestehen darin, daß aufgrund der verbesserten Dämpfung höhere Grenzspantiefen und bessere WerkstUokoberfläohen erzielt werden können und duroh die StufenhUlse 5 als Mittel zum axialen Festlegen der abtriebsseitlgen Lager geringere Rund- und Planlauffehler ersielt werden, die bei einer Befestigung mit herkömmlichen Muttern regelmäßig größer sind. Außerdem kann duroh den kurzen Lagerabstand gleichzeitig eine erhebliche Steiflgkeitserhöhung des gesamten Systems verwirklicht werden.The advantages of the illustrated and just explained spindle bearings for machine tools are that, due to the improved damping, higher Limiting depths of cut and better workpiece surfaces can be achieved and through the step sleeve 5 as a means for axially fixing the output sides Bearing lower concentricity and axial run-out errors can be obtained when fastening with conventional nuts are regularly larger. In addition, due to the short bearing spacing, a considerable increase in the rigidity of the entire system can be realized.
Selbstverständlich ist die Neuerung nioht auf die Lagerung von Werkzeugmasohinenaplndeln beschränkt, sondern läßt sioh in allen den Fällen anwenden, bei denen hohe Systemsteifigkeit, gute Dämpfung, geringe Rund- und Planlauffehler sowie kurze axiale Baulänge gefordert sind.Of course, the innovation does not apply to the storage of machine tools limited, but can be applied in all cases in which high system rigidity, good damping, low radial and axial run-out errors as well as short axial length are required.
Claims (2)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE7201256 | 1972-01-14 |
Publications (1)
Publication Number | Publication Date |
---|---|
DE7201256U true DE7201256U (en) | 1972-04-06 |
Family
ID=6627540
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE7201256U Expired DE7201256U (en) | 1972-01-14 | 1972-01-14 | Arrangement for storage |
Country Status (4)
Country | Link |
---|---|
DE (1) | DE7201256U (en) |
FR (1) | FR2168040A5 (en) |
GB (1) | GB1394931A (en) |
SE (1) | SE392637B (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4105982C1 (en) * | 1991-02-26 | 1992-08-13 | Hueller Hille Gmbh, 7140 Ludwigsburg, De | Main spindle bearing system for machine tool - has middle bearing play-free adjustable, its bush non-rotatable, and sealing rings in gap ends |
DE4223256A1 (en) * | 1992-07-15 | 1994-01-20 | Schaeffler Waelzlager Kg | Vibration-damping roller-bearing adjuster esp for machine tool spindle - attenuates radial and axial vibrations by compression of liq., pref. electro-rheological liq., in gap between sawtooth projections and grooves around nut |
FR2696216A1 (en) * | 1992-09-29 | 1994-04-01 | Schaeffler Waelzlager Kg | Bearing for mounting a machine tool spindle. |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4370106A (en) * | 1979-03-09 | 1983-01-25 | Cummins Engine Company | Bearing assembly for high speed shaft |
NL8100691A (en) * | 1981-02-12 | 1982-09-01 | Gereedschapswerktuigenindustri | TOOL TOOL. |
EP2193876B1 (en) * | 2008-12-03 | 2011-09-07 | Franz Kessler GmbH | Motor spindle with a previous fixed bearing |
CN102261378B (en) * | 2011-04-29 | 2012-11-14 | 杭州前进齿轮箱集团股份有限公司 | Sliding bearing floating connecting device |
-
1972
- 1972-01-14 DE DE7201256U patent/DE7201256U/en not_active Expired
- 1972-12-06 SE SE7215867A patent/SE392637B/en unknown
-
1973
- 1973-01-12 GB GB170073A patent/GB1394931A/en not_active Expired
- 1973-01-12 FR FR7301095A patent/FR2168040A5/fr not_active Expired
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4105982C1 (en) * | 1991-02-26 | 1992-08-13 | Hueller Hille Gmbh, 7140 Ludwigsburg, De | Main spindle bearing system for machine tool - has middle bearing play-free adjustable, its bush non-rotatable, and sealing rings in gap ends |
DE4223256A1 (en) * | 1992-07-15 | 1994-01-20 | Schaeffler Waelzlager Kg | Vibration-damping roller-bearing adjuster esp for machine tool spindle - attenuates radial and axial vibrations by compression of liq., pref. electro-rheological liq., in gap between sawtooth projections and grooves around nut |
FR2696216A1 (en) * | 1992-09-29 | 1994-04-01 | Schaeffler Waelzlager Kg | Bearing for mounting a machine tool spindle. |
DE4232563B4 (en) * | 1992-09-29 | 2005-09-29 | Ina-Schaeffler Kg | Rolling bearing for mounting a machine tool spindle |
Also Published As
Publication number | Publication date |
---|---|
SE392637B (en) | 1977-04-04 |
FR2168040A5 (en) | 1973-08-24 |
GB1394931A (en) | 1975-05-21 |
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