DE91263C - - Google Patents
Info
- Publication number
- DE91263C DE91263C DENDAT91263D DE91263DA DE91263C DE 91263 C DE91263 C DE 91263C DE NDAT91263 D DENDAT91263 D DE NDAT91263D DE 91263D A DE91263D A DE 91263DA DE 91263 C DE91263 C DE 91263C
- Authority
- DE
- Germany
- Prior art keywords
- crank
- piston
- cranks
- offset
- dead center
- 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.)
- Active
Links
- 238000010276 construction Methods 0.000 description 2
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
- F16H—GEARING
- F16H21/00—Gearings comprising primarily only links or levers, with or without slides
- F16H21/10—Gearings comprising primarily only links or levers, with or without slides all movement being in, or parallel to, a single plane
- F16H21/16—Gearings comprising primarily only links or levers, with or without slides all movement being in, or parallel to, a single plane for interconverting rotary motion and reciprocating motion
- F16H21/18—Crank gearings; Eccentric gearings
- F16H21/22—Crank gearings; Eccentric gearings with one connecting-rod and one guided slide to each crank or eccentric
- F16H21/32—Crank gearings; Eccentric gearings with one connecting-rod and one guided slide to each crank or eccentric with additional members comprising only pivoted links or arms
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Transmission Devices (AREA)
Description
KAISERLICHESIMPERIAL
PATENTAMT.PATENT OFFICE.
PATENTSCHRIFTPATENT LETTERING
KLASSE 47: Maschinenelemente.CLASS 47: Machine elements.
Patentirt im Deutschen Reiche vom 30. Juni 1896 ab.Patented in the German Empire on June 30, 1896.
Gegenstand der Erfindung ist ein Kurbelgetriebe mit zwei um i8o° zu einander versetzten Kurbeln, welches dadurch gekennzeichnet ist, dafs der Kolben des Druckcylinders nur seine unterste Todtpunktlage gleichzeitig mit der Kurbel erreicht, während in der zweiten (oberen) Todtpunktlage der Kurbel der Kolben im Cylinder eine derartige Stellung bereits besitzt, dafs der Druck im Cylinder auf die Kurbel voll zur Geltung kommt. Dabei ist es nothwendig, Kurbel und Kolben nicht direct mit einander durch Kurbel und Pleuelstange zu verbinden, sondern es müssen besondere Constructionselemente zwischen Kurbel und Kolben eingeschaltet werden, welche die Erreichung des vorerwähnten Zweckes ermöglichen. Diese zwischen Kurbel und Kolben zwischengeschalteten Constructionstheile bestehen aus einer Gleitstange α, welche an den Kurbelzapfen angelenkt ist und in ihrem Lager b hin- und hergleiten kann, und einem bei c drehbar gelagerten Hebel d, dessen Länge so bemessen ist, dafs der Drehzapfen e für die Verbindungsstange f zwischen α und d durch die Mitte der Kurbelwelle geht.The subject of the invention is a crank mechanism with two cranks offset by 180 ° to each other, which is characterized in that the piston of the pressure cylinder only reaches its lowest dead center position at the same time as the crank, while in the second (upper) dead center position of the crank the piston in the cylinder already has such a position that the pressure in the cylinder on the crank comes into its own. It is necessary here not to connect the crank and piston directly to one another by means of a crank and connecting rod, but rather special construction elements must be inserted between the crank and the piston, which enable the aforementioned purpose to be achieved. These construction parts interposed between crank and piston consist of a sliding rod α, which is hinged to the crank pin and can slide back and forth in its bearing b , and a lever d rotatably mounted at c , the length of which is so dimensioned that the pivot e for the connecting rod f between α and d passes through the center of the crankshaft.
In Fig. 4 der Zeichnung ist g der Druckcylinder, in welchem der Kolben h seine tiefste Stellung erreicht hat. Durch die im Winkel gebogene Kolbenstange 'i und die Pleuelstange k ist die Verbindung mit der Stange d hergestellt. In dieser Stellung haben-Kolben h und Kurbel m gleichzeitig ihre Todtpunktlage, und zwar ihre unterste Todtpunktlage erreicht. Die Stellung der zweiten Kurbel m1 und ihrer Verbindungstheile a1 d} ist in diesem Augenblicke jedoch eine derartige, dafs der Kolben, des zweiten Druckcylinders bereits seine höchste Lage überschritten hat und nun der Druck über ihm voll zum Umtreiben der Kurbelwelle ausgenutzt werden kann. Die Kurbel m wird also aus ihrer unteren Todtpunktlage Fig. 4 in ihre Lage Fig. ι durch den Kolben der zweiten Kurbel m1 gezogen. In Fig. 1 ist diejenige Stellung der Kurbel m gezeichnet, in welcher sie ihre horizontale Lage- um ein Geringes überschritten hat. Der Kolben im Cylinder hat dann seine höchste Stellung ebenfalls etwas überschritten. Er bewegt sich jetzt nieder, und dabei findet eine derartige Wirkung auf die Stange α statt, dafs dieselbe die Kurbel m weiterschiebt, so dafs diese fm) beim Niedergehen des Kolbens zunächst ihre Lage Fig. 2 erreicht. Bei dieser Kurbelstellung übt der Druck im Cylinder seine volle Kraft auf die Kurbel m aus. Der Kolben befindet sich dabei im Niedergange und behält diese Bewegungsrichtung bei, bis die Kurbel ihren untersten Todtpunkt erreicht hat (Fig. 4). Es hat also bei einem Niedergange des Kolbens eine Drehung der Kurbel durch drei Quadranten stattgefunden. Befindet sich die Kurbel in ihrer tiefsten Todtpunktlage, so findet die gröfste Krafteinwirkung, wie bereits vorher auseinandergesetzt, an der um i8ö° gegen m versetzten Kurbel m1 statt, welche die Kurbel m über ihre Todtpunktlage hinweghilft. Der Kolben läuft also leer von unten nach oben, und zwar wird hierbei seine Kurbel durch denIn Fig. 4 of the drawing, g is the pressure cylinder in which the piston h has reached its lowest position. The connection with the rod d is established by the piston rod 'i , which is bent at an angle, and the connecting rod k. In this position, piston h and crank m have reached their dead center position at the same time, namely their lowest dead center position. The position of the second crank m 1 and its connecting parts a 1 d } is at this moment such that the piston of the second pressure cylinder has already passed its highest position and the pressure above it can now be fully used to drive the crankshaft. The crank m is thus pulled from its lower dead center position Fig. 4 into its position Fig. Ι by the piston of the second crank m 1 . In Fig. 1 that position of the crank m is drawn in which it has exceeded its horizontal position by a small amount. The piston in the cylinder has then also slightly exceeded its highest position. It now moves down, and there is such an effect on the rod α that it pushes the crank m further, so that this fm) first reaches its position in Fig. 2 when the piston goes down. In this crank position, the pressure in the cylinder exerts its full force on the crank m . The piston is in the down gear and maintains this direction of movement until the crank has reached its lowest dead point (Fig. 4). When the piston went down, the crank turned through three quadrants. If the crank is in its lowest dead center position, the greatest force action, as already explained above, takes place on crank m 1 which is offset by 18 ° to m and which helps crank m over its dead center position. So the piston runs empty from the bottom to the top, with its crank being driven by the
Claims (1)
Publications (1)
Publication Number | Publication Date |
---|---|
DE91263C true DE91263C (en) |
Family
ID=362901
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DENDAT91263D Active DE91263C (en) |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE91263C (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19842898A1 (en) * | 1998-09-18 | 2000-03-23 | Bernd Reimann | Gear with two gear members connected by coupling element with fulcrum |
-
0
- DE DENDAT91263D patent/DE91263C/de active Active
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19842898A1 (en) * | 1998-09-18 | 2000-03-23 | Bernd Reimann | Gear with two gear members connected by coupling element with fulcrum |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
DE2620062A1 (en) | TRANSMISSION | |
DE91263C (en) | ||
DE1502980C3 (en) | Flat knife hemming scissors | |
DE320850C (en) | Tin snips for splitting, dividing and hemming | |
DE947218C (en) | Work machine, in particular scissors, punch or the like for manual operation | |
DE876929C (en) | Hydraulic device for lifting and adjusting the working height of a tool carried by a tractor | |
DE64645C (en) | Sheet music turner | |
DE859829C (en) | Device for switching power lifts and for displaying the respective lifting height or lowering depth, especially for tractors that work with agricultural machines and devices that can be raised and lowered | |
DE184632C (en) | ||
DE242813C (en) | ||
DE194914C (en) | ||
DE574982C (en) | Block and billet shears cutting from bottom to top with two knives moved by a lever system | |
DE24811C (en) | Hollow piston rod, connecting the large and small cylinders of a steam engine, with rotary or shell valves in the former | |
DE644808C (en) | Switching device for the gearbox and the engine clutch of a motor vehicle | |
DE959616C (en) | Multiple piston pump | |
DE233168C (en) | ||
DE286233C (en) | ||
DE667514C (en) | Bass and treble register control for hand harmonics | |
DE535113C (en) | Transmission for internal combustion engines | |
DE2401839A1 (en) | EXTENDING TABLE | |
DE48833C (en) | Compulsory control with regulator adjustment for unchanged beginning or unchanged size of the pre-opening | |
AT94575B (en) | Reverse gear. | |
DE256875C (en) | ||
DE935841C (en) | Tin doubler | |
AT139467B (en) | Die stamping press. |