DE617411C - Coal grinding piece for electric railways - Google Patents
Coal grinding piece for electric railwaysInfo
- Publication number
- DE617411C DE617411C DEC49879D DEC0049879D DE617411C DE 617411 C DE617411 C DE 617411C DE C49879 D DEC49879 D DE C49879D DE C0049879 D DEC0049879 D DE C0049879D DE 617411 C DE617411 C DE 617411C
- Authority
- DE
- Germany
- Prior art keywords
- railways
- electric railways
- grinding piece
- carbon
- coal
- 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
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L5/00—Current collectors for power supply lines of electrically-propelled vehicles
- B60L5/18—Current collectors for power supply lines of electrically-propelled vehicles using bow-type collectors in contact with trolley wire
- B60L5/20—Details of contact bow
- B60L5/205—Details of contact bow with carbon contact members
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Springs (AREA)
Description
Kohlenschleifstück für elektrische Bahnen Die hohen Geschwindigkeiten elektrischer Bahnen stellen große Anforderungen an das Material des Kohlenschleifbügels. Kohle ist ein keramischer Körper und als solcher empfindlicher gegen Schläge und Biegungsbeanspruchungen wie z. B. Metall. Es sind deswegen für schnell fahrende Maschinen schon besondere Stromabnehmer geschafften worden, um die harten Schläge .der OberIeitungsaufhängung gegen die Kohle abzuschwächen. Diese meist innengefaßten Kohlenbügel haben eine stark verbreiterte Trägerarmatur und Auflaufflächen starker Neigung,- um den Schlag möglichst abzuleiten. Es hat sich herausgestellt, daß die Wirkung der Schläge noch: weiterhin gemildert werden kann, wenn die seitlichen Flächen mit ielastischen Masseen, z. B. Gummi, versehen werden; die Auflage muß natürlich so stark sein, daß sie eine gute Elastizität bekommt, und wird am besten ,fest mit der Kohle verbunden, damit sich keine Luft fangen kann. Zweckmäßigerweise wird der Schutzmantel die Stromlinienform des Schleifkörpers unterstützen.Coal grinding piece for electric railways The high speeds of electrical railways place great demands on the material of the coal grinding bow. Carbon is a ceramic body and as such is more sensitive to impacts and bending stresses such as B. metal. For this reason, special pantographs have already been created for high-speed machines in order to weaken the hard blows of the overhead line suspension against the coal. These mostly internally enclosed coal hoops have a strongly widened support armature and ramp surfaces with a strong incline - in order to derive the impact as much as possible. It has been found that the effect of the blows: can still be mitigated if the lateral surfaces with ielastic masses, z. B. rubber, are provided; the support must of course be so strong that it has good elasticity, and it is best to attach it firmly to the charcoal so that no air can get caught. The protective jacket will expediently support the streamlined shape of the grinding wheel.
Die Anbringung derartiger Schutzkörper hat anfangs etwas Schwierigkeiten gemacht, da die Armatur des Schleifstückes ja im Innern der Kohle liegt und völlig von dieser umgeben ist. Als beste Befestigung hat sich das Aufklemmen durch soffen oder verdeckt liegende Federleisten erwiesen; dabei kann die Gummihülle aus einem Teil ioder zwei seitlichen Leisten bestehen (Abb. i und 2). In den Abbildungen bedeutet i die Trägerarmatur im Innern der Kohle (Querschnitt durch das Schleifstück), 2 das Kohleschleifstück, 3 die Gummihülle, q. die Stromabnahmestelle. In Abb.2 sind die beiden Gummileisten 3 durch Stahlfedern 5 zusammengehalten. Die seitlich auf die Bügelkante auftreffenden SchlagkräfteP werden durch die vorgeschaltete Gummischicht abgeschwächt.The attachment of such protective bodies initially has some difficulties made, because the armature of the contact strip is inside the coal and completely is surrounded by this. Clamping on by softening has proven to be the best attachment or concealed spring strips proven; the rubber cover can consist of a Part i or two lateral ridges exist (Fig. I and 2). In the figures means i the support armature inside the carbon (cross-section through the contact strip), 2 the carbon scraper, 3 the rubber sleeve, q. the power take-off point. In Fig 2 are the two rubber strips 3 held together by steel springs 5. The side on The impact forces P hitting the edge of the bracket are caused by the upstream rubber layer weakened.
Es ist natürlich auch möglich, die Gummileisten. Bohne Federn nur durch einen guten Verkittungsprozeß (Leimen oder Verkitten) zu befestigen .oder durch unmittelbare Verschraubung oder Verstiftung mit dem Kohlekörper zu verbinden, oder man kann verschiedene 'Befestigungsarten vereinigen.It is of course also possible to use the rubber strips. Bean feathers only to be fixed by a good cementing process (gluing or cementing) .or to be connected to the carbon body by direct screwing or pinning, or one can combine different types of fastening.
Es hat sich weiterhin als vorteilhaft erwiesen, die elastische Gummiauflage .ähnlich den Automobilreifen -durch Gewebeeinlagen zu versteifen. Die Abnutzung derartig versteifter Gummiauflagen durch die Fahrleitung erfolgt gleichmäßig, da die Gummischicht der Beanspruchung nicht so sehr ausweicht, ,als wenn sie. nicht versteift .ist.The elastic rubber pad has also proven to be advantageous .Similar to the automobile tires -to stiffen by fabric inserts. The wear and tear Such stiffened rubber pads through the catenary takes place evenly because the rubber layer does not evade the stress as much as when it does. not stiffened .is.
Claims (3)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEC49879D DE617411C (en) | Coal grinding piece for electric railways |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEC49879D DE617411C (en) | Coal grinding piece for electric railways |
Publications (1)
Publication Number | Publication Date |
---|---|
DE617411C true DE617411C (en) | 1935-08-19 |
Family
ID=7027062
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DEC49879D Expired DE617411C (en) | Coal grinding piece for electric railways |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE617411C (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1021881B (en) * | 1952-07-01 | 1958-01-02 | Licentia Gmbh | Clamp pantograph for electrically operated vehicles with a small grinding bar mass |
DE1074622B (en) * | 1960-02-04 | LICENTIA Patent-Verwaltungs GmbH, Frankfurt/M | Pantographs for electric traction vehicles with above-ground power supply | |
EP0000980A1 (en) * | 1977-08-25 | 1979-03-07 | AIRCO, Inc. | Carbon current collecting contactor and pantograph assembly |
EP0638456A1 (en) * | 1993-08-07 | 1995-02-15 | Sgl Carbon Ag | Sliding bow for current collector |
-
0
- DE DEC49879D patent/DE617411C/en not_active Expired
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1074622B (en) * | 1960-02-04 | LICENTIA Patent-Verwaltungs GmbH, Frankfurt/M | Pantographs for electric traction vehicles with above-ground power supply | |
DE1021881B (en) * | 1952-07-01 | 1958-01-02 | Licentia Gmbh | Clamp pantograph for electrically operated vehicles with a small grinding bar mass |
EP0000980A1 (en) * | 1977-08-25 | 1979-03-07 | AIRCO, Inc. | Carbon current collecting contactor and pantograph assembly |
EP0638456A1 (en) * | 1993-08-07 | 1995-02-15 | Sgl Carbon Ag | Sliding bow for current collector |
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