DE485923C - Slider crank drive with variable stroke - Google Patents
Slider crank drive with variable strokeInfo
- Publication number
- DE485923C DE485923C DEK109428D DEK0109428D DE485923C DE 485923 C DE485923 C DE 485923C DE K109428 D DEK109428 D DE K109428D DE K0109428 D DEK0109428 D DE K0109428D DE 485923 C DE485923 C DE 485923C
- Authority
- DE
- Germany
- Prior art keywords
- stroke
- slider crank
- crank drive
- sliding block
- variable stroke
- 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
-
- 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
- F16H21/20—Crank gearings; Eccentric gearings with adjustment of throw
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Transmission Devices (AREA)
Description
Kurbelschleifenantrieb mit veränderlichem Hub Gegenstand der Erfindung ist eine Vorrichtung, welche es ermöglichen soll, den Hub von bewegten Maschinengliedern bis auf ein Höchstmaß stufenlos zu regeln, unter Benutzung einer doppelten Kurbelschleife, bei welcher die Hubrichtung gegen die erzeugte Hubrichtung zur Änderung des Hubes neigbar ist, so daß nur eine Komponente des Kurbelschleifenhubes wirksam bleibt.Slider crank drive with variable stroke object of the invention is a device which should enable the stroke of moving machine parts infinitely variable up to a maximum, using a double crank loop, in which the stroke direction against the generated stroke direction to change the stroke is tiltable so that only one component of the crank loop stroke remains effective.
Hierdurch gelingt es, bei gleichbleibender Exzenterbewegung den Hub des von dieser getriebenen Gliedes von Null bis zu einem Höchstmaß zu verändern. Die Exzenterbewegung wird in bekannter Weise durch einen Gleitbügel und Winkelgestänge oder durch ähnliche Mittel auf das zu bewegende Maschinenglied übertragen.This makes it possible to achieve the stroke with a constant eccentric movement to change the link driven by this from zero to a maximum. The eccentric movement is carried out in a known manner by a sliding bracket and angled linkage or transmitted by similar means to the machine member to be moved.
In Abb. I und 2 ist in zwei zueinander senkrechten Schnitten der Erfindungsgegenstand in einer Ausführungsform beispielsweise dargestellt. Abb.3 veranschaulicht die Kurbelschleifenteile in derjenigen Lage, in welcher der Arbeitshub gleich Null geworden ist. In Abb. 4 und 5 ist der Kulissenstein gesondert dargestellt.In Fig. I and 2 the subject of the invention is in two mutually perpendicular sections shown in one embodiment, for example. Figure 3 illustrates the slider crank parts in the position in which the working stroke has become zero. In fig. 4 and 5 the sliding block is shown separately.
Die Hauptantriebswelle I trägt das Exzenter 2 und treibt den Kulissenstein 3, 3a an. An diesem sind seitlich Gleitbacken 4 durch Schrauben befestigt. Das kreisiende Exzenter 2 wirkt auf die Ausschnittkanten 3a des Kulissensteins, verschiebt diesen bei seiner Drehung und bewirkt einen Hinundhergang der Gleitbacken 4. Diese stützen sich auf abgeflachte Ansätze 6 an Zahnkränzen 5, die auf der Welle I lose drehbar und am Gehäuse feststellbar sind. Die kreisende Bewegung des Exzenters wird somit in eine hin und her gehende Bewegung des Kulissensteins umgesetzt, welche sich auf den Bügel 7 und die an ihm befestigte Schubstange 8 überträgt. Mittels des. Gelenkgestänges 9 und Io wird dadurch einem Arbeitstisch II eine hin und her gehende Bewegung erteilt.The main drive shaft I carries the eccentric 2 and drives the sliding block 3, 3a. On this side sliding jaws 4 are attached by screws. The circling Eccentric 2 acts on cutout edges 3a of the sliding block, shifts it when it rotates and causes the sliding blocks 4 to reciprocate. These support them on flattened lugs 6 on ring gears 5, which can be rotated loosely on the shaft I. and can be determined on the housing. The circular movement of the eccentric is thus implemented in a back and forth movement of the sliding block, which is based on the bracket 7 and the push rod 8 attached to it transfers. By means of the articulated linkage 9 and Io a work table II is given a reciprocating movement.
Die verschiedenen Hublängen werden nun wie folgt eingestellt-.The different stroke lengths are now set as follows -.
Durch die Verdrehung der Zahnkränze 5, bewirkt durch den Zahntrieb I2, I3 I4, werden durch die flachen Ansätze 6 die Gleitbacken 4 und damit der Kulissenstein 3 schräg gestellt. Hierdurch verkleinert sich der Hub. Wird der Kulissenstein 3 noch mehr verdreht bis zur Endlage nach Abb. 3, so stellen sich die Gleitbacken 4 in Senkrechtstellung und werden. in dieser Stellung bewegt. Der Bügel 7 wie auch die Schubstange 8 und die angeschlossenen Glieder werden dann keine Bewegung mehr ausführen, und der Arbeitstisch II steht still.By the rotation of the ring gears 5, caused by the pinion I2, I3 I4, the sliding jaws 4 and thus the sliding block are due to the flat lugs 6 3 inclined. This reduces the stroke. If the sliding block 3 Twisted even more to the end position according to Fig. 3, the sliding jaws are positioned 4 in vertical position and become. moved in this position. The bracket 7 as well the push rod 8 and the connected links will then no longer move execute, and the work table II comes to a standstill.
Die Verwendung des hubveränderlichen Antriebes beschränkt sich nicht nur auf die Bewegung von Schlitten und Arbeitstischen von Werkzeugmaschinen. Er kann in allen ähnlichen Bewegungsaufgaben vorteilhafte Anwendung finden, etwa auch zum Antrieb von Kolbenpumpen mit änderbarer Liefermenge u.dgl. Insbesondere kann der hin und her bewegte Kulissenstein unmittelbar als Verdränger in einer Verdrängerpumpe dienen.The use of the variable-stroke drive is not restricted only to the movement of carriages and work tables of machine tools. He can be used advantageously in all similar movement tasks, for example also for driving piston pumps with variable delivery quantities, etc. In particular, the sliding block moved back and forth directly as a displacer in a displacement pump to serve.
Claims (3)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEK109428D DE485923C (en) | Slider crank drive with variable stroke |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEK109428D DE485923C (en) | Slider crank drive with variable stroke |
Publications (1)
Publication Number | Publication Date |
---|---|
DE485923C true DE485923C (en) | 1929-11-06 |
Family
ID=7241699
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DEK109428D Expired DE485923C (en) | Slider crank drive with variable stroke |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE485923C (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE921495C (en) * | 1951-09-18 | 1954-12-20 | Dorr Co | Cardan drives for driving pumps |
DE1021382B (en) * | 1955-11-26 | 1957-12-27 | Kurt Wende | Parallel oscillating drive to generate a time-limited and periodically recurring synchronism between a tool and a belt moving at constant speed |
DE1175053B (en) * | 1961-02-11 | 1964-07-30 | Friedrich Hermann Dr Ing | Straight thrust rotary motion transmission |
DE1290780B (en) * | 1958-11-20 | 1969-03-13 | Standard Elektrik Lorenz Ag | Controlled devices for converting a rotary movement into an oscillating movement |
-
0
- DE DEK109428D patent/DE485923C/en not_active Expired
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE921495C (en) * | 1951-09-18 | 1954-12-20 | Dorr Co | Cardan drives for driving pumps |
DE1021382B (en) * | 1955-11-26 | 1957-12-27 | Kurt Wende | Parallel oscillating drive to generate a time-limited and periodically recurring synchronism between a tool and a belt moving at constant speed |
DE1290780B (en) * | 1958-11-20 | 1969-03-13 | Standard Elektrik Lorenz Ag | Controlled devices for converting a rotary movement into an oscillating movement |
DE1175053B (en) * | 1961-02-11 | 1964-07-30 | Friedrich Hermann Dr Ing | Straight thrust rotary motion transmission |
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