DE814972C - Safety friction clutch for electrically driven machines - Google Patents
Safety friction clutch for electrically driven machinesInfo
- Publication number
- DE814972C DE814972C DEP27769A DEP0027769A DE814972C DE 814972 C DE814972 C DE 814972C DE P27769 A DEP27769 A DE P27769A DE P0027769 A DEP0027769 A DE P0027769A DE 814972 C DE814972 C DE 814972C
- Authority
- DE
- Germany
- Prior art keywords
- friction clutch
- electrically driven
- safety friction
- driven machines
- safety
- 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
- 230000008878 coupling Effects 0.000 description 7
- 238000010168 coupling process Methods 0.000 description 7
- 238000005859 coupling reaction Methods 0.000 description 7
- 238000010792 warming Methods 0.000 description 2
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000010586 diagram Methods 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
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D7/00—Slip couplings, e.g. slipping on overload, for absorbing shock
- F16D7/02—Slip couplings, e.g. slipping on overload, for absorbing shock of the friction type
- F16D7/024—Slip couplings, e.g. slipping on overload, for absorbing shock of the friction type with axially applied torque limiting friction surfaces
- F16D7/025—Slip couplings, e.g. slipping on overload, for absorbing shock of the friction type with axially applied torque limiting friction surfaces with flat clutching surfaces, e.g. discs
- F16D7/027—Slip couplings, e.g. slipping on overload, for absorbing shock of the friction type with axially applied torque limiting friction surfaces with flat clutching surfaces, e.g. discs with multiple lamellae
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Mechanical Operated Clutches (AREA)
Description
Die Erfindung bezieht sich auf Sicherheitsreibungskupplungen, also auf- solche Kupplungen, bei welchen die überschüssige Energie in Wärme umgesetzt wird. Diese Wärme wird von der Kupplung aufgenommen, an die Luft abgegeben bzw. weitergeleitet, und solange die Wärmemenge ein bestimmtes Maß nicht überschreitet, ist die Wirkungsweise der Kupplung nicht gefährdet. Wird jedoch die Erwärmung zu groß, tritt die Gefahr auf, daß wertvolle Teile der Kupplung zerstört werden.The invention relates to safety friction clutches, so on such clutches in which the excess energy is converted into heat will. This heat is absorbed by the coupling, released into the air or forwarded, and as long as the amount of heat does not exceed a certain level, the operation of the coupling is not endangered. However, the warming is increasing large, there is a risk that valuable parts of the clutch will be destroyed.
Zweck der Erfindung ist, dieses Gefahrenmoment auszuschalten und damit den Betrieb der Kupplung sicher zu gestalten und die Lebensdauer der Kupplung, verlängern zu helfen: ,Gelöst soll diese Aufgabe gemäß der Erfindung dadurch werden, daß man die übergroß auftretende Erwärmung zu thermischen Auslösungen nutzt und damit Begrenzungeii des Drehmomentes bzw. der. Rutsch-(lauer herbeiführt, zu welchem Behufe man an d'e Kupplung einen Bimetallunterbrecher anbaut, welcher bei zu hoher Erwärmung der Kupplung den Stromkreis des Motors direkt oder über ein Hilfsrelais. unterbricht. Vorzugsweise soll der Bimetallunterbrecher bei einer Lamellensicherheitskupplung nahe dem Lamellenpaket verlegt sein.The purpose of the invention is to eliminate this element of danger and thus to make the operation of the coupling safe and to extend the service life of the coupling to help: This object is to be achieved according to the invention in that one uses the excessively occurring warming for thermal tripping and thus limitation of the torque or the. Slippery (lukewarm, for what purpose one an d'e Coupling attaches a bimetallic interrupter, which if the coupling heats up too much the motor circuit directly or via an auxiliary relay. interrupts. Preferably the bimetallic interrupter should be close to the disk pack in a multi-disk safety clutch be relocated.
In der Zeichnung ist der Gegenstand der Erfindung in einer beispielsweisen Ausführungsform veranschaulicht, und zwar in Anwendung bei einer Lamellensicherheitskupplung. Es zeigt Abb. i einen Längsschnitt der Kupplung, Abb. 2 ein Schaltschema zu dieser Kupplung. Die mit i bezeichnete treibende Welle ist mit dem Innenkörper 2 verkeilt, auf dem die innenverzahnten Lamellen 3 sitzen, während die getriebene Welle 7 mit dem Außenkörper 4 verkeilt ist, in dem die außenverzahnten Lamellen 5 sitzen, die durch die Druckfeder 6 zusammengepreßt werden, wodurch der Reibungsschluß zwischen Innenkörper 2 und Außenkörper .4 hergestellt ist und damit die beiden Wellen i und 7 verbunden sind.In the drawing, the subject matter of the invention is in an exemplary manner Embodiment illustrated, specifically in use with a multi-plate safety clutch. It shows Fig. I a longitudinal section of the clutch, Fig. 2 a circuit diagram for this Coupling. The driving shaft marked i is keyed to the inner body 2, on which the internally toothed lamellae 3 sit, while the driven shaft 7 with the outer body 4 is wedged in which sit the externally toothed lamellae 5, the are compressed by the compression spring 6, whereby the frictional engagement between Inner body 2 and outer body .4 is made and thus the two shafts i and 7 are connected.
Dicht am Lamellenpaket 3, 5 ist im Außenkörper 4 ein Bimetallunterbrecher 8 eingebaut, dessen beide Kontakte zum Schleifring 9 hinführen. Der Bimetallunterbrecher 8 sitzt in einem Stromkreis von normaler Spannung, in dem weiterhin das Zwischenrelais io angeordnet ist. Durch dieses Zwischenrelais ist der Hauptstromkreis des Motors M unterbrechbar.A bimetallic interrupter is located in the outer body 4 close to the plate pack 3, 5 8 installed, the two contacts of which lead to slip ring 9. The bimetal breaker 8 sits in a circuit of normal voltage, in which the intermediate relay continues io is arranged. The main circuit of the motor is through this intermediate relay M interruptible.
Ist das zu übertragende Drehmoment zu groß, so gleiten die Innenlamellen 3 gegen die Außenlamellen 5 und setzen die überschüssige Energie in Wärme um. Übersteigt nun die Temperatur ein bestimmtes Maß, so wird durch den Bimetall-Unterbrecher der Motorstromkreis direkt oder nach denn gewählten Beispiel über ein Hilfsrelais io abgeschaltet: Sobald sich die Lamellenkupplung wieder genügend abgekühlt hat, kann man durch den Motorschutzschalter den :Motor ohne weiteres wieder in Gang setzen.If the torque to be transmitted is too great, the inner plates slide 3 against the outer plates 5 and convert the excess energy into heat. Exceeds now the temperature is a certain level, so the bimetal breaker is the Motor circuit directly or according to the selected example via an auxiliary relay OK switched off: As soon as the multi-plate clutch has cooled down sufficiently again, can you can use the motor protection switch to: restart the motor without further ado.
Es liegt im Rahmen der Erfindung, die Anordnung eines Bimetallunterbrechers auch bei jeder anderen Art von Sicherheitsreibungskupplungen durchzuführen.It is within the scope of the invention to arrange a bimetal breaker also to be carried out with any other type of safety friction clutch.
Claims (2)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEP27769A DE814972C (en) | 1948-12-29 | 1948-12-29 | Safety friction clutch for electrically driven machines |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEP27769A DE814972C (en) | 1948-12-29 | 1948-12-29 | Safety friction clutch for electrically driven machines |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE814972C true DE814972C (en) | 1951-09-27 |
Family
ID=7370974
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DEP27769A Expired DE814972C (en) | 1948-12-29 | 1948-12-29 | Safety friction clutch for electrically driven machines |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE814972C (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE927722C (en) * | 1951-04-12 | 1955-05-16 | Elektro Mechanik G M B H | Magnetic particle clutch, especially starting clutch for electric motors |
| DE1062993B (en) * | 1955-11-10 | 1959-08-06 | Elmeg | Magnetic particle clutch or brake, in which the magnetic powder can be removed from the working gap by means of centrifugal force through one or more openings in the outer runner |
| DE1193631B (en) * | 1956-04-18 | 1965-05-26 | Martin Joh Jos Dr Ing | Device for crushing fuel masses to be moved by conveying devices for large-scale combustion |
| DE1198140B (en) * | 1959-08-18 | 1965-08-05 | Ringspann Maurer Kg A | Torque-limiting slip clutch |
| DE4009626A1 (en) * | 1990-03-26 | 1991-11-07 | Hoffeld Harald Dipl Ing | Friction clutch coupling - has at least one control assembly with spring, and shape memory metal |
| US5934630A (en) * | 1995-07-12 | 1999-08-10 | Steelcase Inc. | Furniture leg mounting mechanism |
| DE19948396A1 (en) * | 1999-10-07 | 2001-05-10 | Roland Martin | Temperature monitoring and safety module for electric motor e.g. for blind or vibrator, is mounted separate from stator laminations packet with response temperature selected for compensating heat transfer loss |
-
1948
- 1948-12-29 DE DEP27769A patent/DE814972C/en not_active Expired
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE927722C (en) * | 1951-04-12 | 1955-05-16 | Elektro Mechanik G M B H | Magnetic particle clutch, especially starting clutch for electric motors |
| DE1062993B (en) * | 1955-11-10 | 1959-08-06 | Elmeg | Magnetic particle clutch or brake, in which the magnetic powder can be removed from the working gap by means of centrifugal force through one or more openings in the outer runner |
| DE1193631B (en) * | 1956-04-18 | 1965-05-26 | Martin Joh Jos Dr Ing | Device for crushing fuel masses to be moved by conveying devices for large-scale combustion |
| DE1198140B (en) * | 1959-08-18 | 1965-08-05 | Ringspann Maurer Kg A | Torque-limiting slip clutch |
| DE4009626A1 (en) * | 1990-03-26 | 1991-11-07 | Hoffeld Harald Dipl Ing | Friction clutch coupling - has at least one control assembly with spring, and shape memory metal |
| US5934630A (en) * | 1995-07-12 | 1999-08-10 | Steelcase Inc. | Furniture leg mounting mechanism |
| DE19948396A1 (en) * | 1999-10-07 | 2001-05-10 | Roland Martin | Temperature monitoring and safety module for electric motor e.g. for blind or vibrator, is mounted separate from stator laminations packet with response temperature selected for compensating heat transfer loss |
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