DE1221717B - Miniature motor with bearing inserts made of sintered material - Google Patents
Miniature motor with bearing inserts made of sintered materialInfo
- Publication number
- DE1221717B DE1221717B DES87598A DES0087598A DE1221717B DE 1221717 B DE1221717 B DE 1221717B DE S87598 A DES87598 A DE S87598A DE S0087598 A DES0087598 A DE S0087598A DE 1221717 B DE1221717 B DE 1221717B
- Authority
- DE
- Germany
- Prior art keywords
- oil
- bearing inserts
- conical spring
- sintered material
- bore
- 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
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
- F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
- F16C33/02—Parts of sliding-contact bearings
- F16C33/04—Brasses; Bushes; Linings
- F16C33/06—Sliding surface mainly made of metal
- F16C33/10—Construction relative to lubrication
- F16C33/1025—Construction relative to lubrication with liquid, e.g. oil, as lubricant
- F16C33/103—Construction relative to lubrication with liquid, e.g. oil, as lubricant retained in or near the bearing
-
- 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
- F16C33/02—Parts of sliding-contact bearings
- F16C33/04—Brasses; Bushes; Linings
- F16C33/06—Sliding surface mainly made of metal
- F16C33/10—Construction relative to lubrication
- F16C33/102—Construction relative to lubrication with grease as lubricant
-
- 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
- F16N—LUBRICATING
- F16N7/00—Arrangements for supplying oil or unspecified lubricant from a stationary reservoir or the equivalent in or on the machine or member to be lubricated
- F16N7/12—Arrangements for supplying oil or unspecified lubricant from a stationary reservoir or the equivalent in or on the machine or member to be lubricated with feed by capillary action, e.g. by wicks
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
- H02K5/16—Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields
- H02K5/167—Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields using sliding-contact or spherical cap bearings
- H02K5/1675—Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields using sliding-contact or spherical cap bearings radially supporting the rotary shaft at only one end of the rotor
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Power Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Sliding-Contact Bearings (AREA)
Description
Kleinstmotor mit Lagereinsätzen aus Sintermaterial Die Lager von bekannten Kleinstmotoren sind meist durch Lagereinsätze gebildet, die aus ölgetränktem Sintermaterial bestehen. Die Lebensdauer solcher Lager kann bekanntlich dadurch erheblich erhöht werden, daß ein zusätzlicher ölvorratsraum vorgesehen ist, aus dem bei Bedarf von den Lagereinsätzen Öl angesaugt werden kann. Als Ölvorratsraum bietet sich die Bohrung in die Statornabe des Motors an, die in an sich bekannter Weise beidseitig durch die Lagereinsätze abgeschlossen ist. Würde man aber in diesem Raum das Öl ohne Trägermittel einfüllen, so würde das Öl infolge des unvermeidlichen Lagerspieles bald auslaufen. Man hat deshalb nach bekannten Vorschlägen in diesem Raum einen ölfilz angeordnet, der mit Öl getränkt und beispielsweise durch eine Federplatte eines Kalottenlagers gehalten ist. Es hat sich aber gezeigt, daß der Ölfilz zum Verschleiß und zur Fusselbildung neigt. Es sind deshalb auch Versuche mit Schaumstoffen unternommen worden. Schaumstoffe, die an sich eine sehr gute Kapillarwirkung haben, neigen aber ebenfalls zu Abrieb und sind auch nicht temperaturbeständig. Um diese Schwierigkeiten zu umgehen, hat man auf diese Trägermittel verzichtet und den Vorratsraum mit einem besonderen Fett gefüllt. Durch den ölbestandteil des Fettes werden dann die Sinterlager mit Öl versorgt. Es hat sich aber gezeigt, daß durch die festen Bestandteile des Fettes im Laufe der Zeit die Poren der Sinterlager verstopft werden.Miniature motor with bearing inserts made of sintered material The bearings of known miniature motors are usually formed by bearing inserts made of oil-soaked sintered material. As is known, the service life of such bearings can be increased considerably by providing an additional oil storage space from which oil can be sucked in by the bearing inserts if necessary. The bore in the stator hub of the motor, which is closed on both sides by the bearing inserts in a manner known per se, can be used as the oil reservoir. But if you were to pour the oil into this space without a carrier, the oil would soon run out due to the inevitable bearing play. Therefore, according to known proposals, an oil felt has been arranged in this space, which is soaked with oil and held, for example, by a spring plate of a spherical bearing. It has been shown, however, that the oil felt tends to wear and to form fluff. For this reason, attempts have also been made with foams. Foams, which in themselves have a very good capillary action, also tend to wear and are also not temperature-resistant. In order to circumvent these difficulties, these carrier means have been dispensed with and the storage space has been filled with a special fat. The sintered bearings are then supplied with oil by the oil component of the grease. However, it has been shown that the pores of the sintered bearings are clogged by the solid constituents of the fat in the course of time.
Der Erfindung liegt die Aufgabe zugrunde, die Kleinstmotoren mit in einer Bohrung der Statornabe eingesetzten Lagereinsätzen aus ölgetränktem Sintermaterial, die mit einem von einem ölspeichernden Mittel erfüllten Ölvorratsraum in Verbindung stehen, derart auszubilden, daß die vorerwähnten Nachteile vermieden werden. Dies wird gemäß der Erfindung dadurch erreicht, daß in dem Olvorratsraum eine Kegelfeder aus Flachband eingesetzt ist, die unter leichtem Druck sowohl an der Bohrung der Statornabe als auch an den beiden Lagereinsätzen anliegt.The invention is based on the object of the miniature motors with in bearing inserts made of oil-soaked sintered material inserted into a bore in the stator hub, which are in connection with an oil reservoir filled with an oil-storing agent are to be trained in such a way that the aforementioned disadvantages are avoided. this is achieved according to the invention in that a conical spring in the oil reservoir made of ribbon is inserted, which is applied under light pressure both to the bore of the Stator hub as well as on the two bearing inserts.
Die Erfindung wird an Hand eines in der Zeichnung dargestellten Ausführungsbeispiels näher erläutert; es zeigt F i g. 1 einen Lagerkörper für einen Kleinstmotor im Schnitt, F i g. 2 eine Seitenansicht der Kegelfeder und F i g. 3 eine Draufsicht der Kegelfeder.The invention is explained in more detail using an exemplary embodiment shown in the drawing; it shows F i g. 1 shows a bearing body for a miniature motor in section, FIG . 2 shows a side view of the conical spring and FIG . 3 is a top view of the conical spring.
Mit 1 und 2 sind die Lagereinsätze aus Sintermaterial bezeichnet, die zu beiden Seiten die Böhrung in der Statomabe 3 abschließen. Der Innenraum der Statornabe ist durch eine Kegelfeder 4 aus Flachband ausgefüllt. Durch die Bohrungen 5 und 6 in den Lagereinsätzen 1 und 2 werden die eigentlichen Lagerstellen für die nicht dargestellte Motorachse gebildet.With 1 and 2, the bearing inserts made of sintered material are designated, which close the bore in the Statomabe 3 on both sides. The interior of the stator hub is filled with a conical spring 4 made of flat strip. The actual bearing points for the motor axis, not shown, are formed by the bores 5 and 6 in the bearing inserts 1 and 2.
In F i g. 2 ist die Kegelfeder aus Flachband dargestellt. Die Kegelfeder 4 ist hierbei so bemessen, daß sie unter leichtem Druck an der Bohrung der Statornabe 3 und an den beiden Lagereinsätzen anliegt, Dadurch ist die Gewähr gegeben, daß zwischen den Lagereinsätzen 1 und 2 eine forinschlüssige Verbindung hergestellt ist, so daß das zwischen den Gängen der Kegelfeder befindliche Öl vollständig von den Lagereinsätzen abgesaugt werden kann. Wie F i g. 3 zeigt, sind die Windungen so ausgeführt, daß das Öl infolge der Kapillarwirkung in der Kegelfeder gehalten wird. Zur Vergrößerung des ölvolumens kann die Kegelfeder Öffnungen 7 aufweisen, die zweckmäßig so angeordnet sind, daß sich die Löcher in den einzelnen Windungen nicht unmittelbar gegenüberstehen. Der Innendurchmesser der Kegelfeder ist, wie F i g. 1 zeigt, so gewählt, daß die durchgehende Welle völlig frei laufen kann. Unter Umständen kann es zweckmäßig sein, daß der Innendurchmesser der Kegelfeder so gewählt wird, daß das Vorratsöl nicht entlang der Achse auslaufen kann, sondern daß es nur den Lagereinsätzen aus Sintermetall zugeführt wird.In Fig. 2 shows the conical spring made of ribbon. The cone spring 4 is in this case so dimensioned that it bears with light pressure on the bore of the stator 3 and on the two bearing sets, characterized it is guaranteed that a forinschlüssige connection is established between the bearing inserts 1 and 2, so that between the Gears of the conical spring located oil can be completely sucked off from the bearing inserts. Like F i g. 3 shows, the windings are designed in such a way that the oil is held in the conical spring as a result of the capillary action. To increase the oil volume, the conical spring can have openings 7 which are expediently arranged so that the holes in the individual turns are not directly opposite one another. The inner diameter of the conical spring is, as shown in FIG. 1 shows, chosen so that the continuous wave can run completely free. Under certain circumstances it can be expedient that the inner diameter of the conical spring is chosen so that the supply oil cannot run out along the axis, but that it is only fed to the sintered metal bearing inserts.
Claims (2)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DES87598A DE1221717B (en) | 1963-09-28 | 1963-09-28 | Miniature motor with bearing inserts made of sintered material |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DES87598A DE1221717B (en) | 1963-09-28 | 1963-09-28 | Miniature motor with bearing inserts made of sintered material |
Publications (1)
Publication Number | Publication Date |
---|---|
DE1221717B true DE1221717B (en) | 1966-07-28 |
Family
ID=7513887
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DES87598A Pending DE1221717B (en) | 1963-09-28 | 1963-09-28 | Miniature motor with bearing inserts made of sintered material |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE1221717B (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2833503A1 (en) * | 1977-08-04 | 1979-02-15 | United Technologies Corp | WHEEL BEARING |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CH171485A (en) * | 1932-12-16 | 1934-08-31 | Bosch Robert Ag | Bearing for the shaft of bicycle alternators. |
FR869164A (en) * | 1941-01-11 | 1942-01-26 | Bicycle Lighting Magneto | |
US3002794A (en) * | 1957-10-14 | 1961-10-03 | Howard Ind Inc | Motor bearing organization |
-
1963
- 1963-09-28 DE DES87598A patent/DE1221717B/en active Pending
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CH171485A (en) * | 1932-12-16 | 1934-08-31 | Bosch Robert Ag | Bearing for the shaft of bicycle alternators. |
FR869164A (en) * | 1941-01-11 | 1942-01-26 | Bicycle Lighting Magneto | |
US3002794A (en) * | 1957-10-14 | 1961-10-03 | Howard Ind Inc | Motor bearing organization |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2833503A1 (en) * | 1977-08-04 | 1979-02-15 | United Technologies Corp | WHEEL BEARING |
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