DE2746388A1 - Coupling for agricultural machine V=belt drive - has jockey pulley movable to establish or release drive by altering belt tension - Google Patents
Coupling for agricultural machine V=belt drive - has jockey pulley movable to establish or release drive by altering belt tensionInfo
- Publication number
- DE2746388A1 DE2746388A1 DE19772746388 DE2746388A DE2746388A1 DE 2746388 A1 DE2746388 A1 DE 2746388A1 DE 19772746388 DE19772746388 DE 19772746388 DE 2746388 A DE2746388 A DE 2746388A DE 2746388 A1 DE2746388 A1 DE 2746388A1
- Authority
- DE
- Germany
- Prior art keywords
- drive
- belt
- jockey pulley
- coupling
- establish
- 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.)
- Ceased
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
- F16H7/00—Gearings for conveying rotary motion by endless flexible members
- F16H7/08—Means for varying tension of belts, ropes, or chains
- F16H7/0827—Means for varying tension of belts, ropes, or chains for disconnecting the drive
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Devices For Conveying Motion By Means Of Endless Flexible Members (AREA)
Abstract
Description
Schaltbare Antriebsvorrichtung mit Switchable drive device with
Keilriemenb Die Erfindung bezieht sich aui eine schaltbare Antriebsvorrichtung mit einer Antriebs- und einer Abtriebsrlemenscheibe und mindestens einem Keilriemen, dessen Spannung zum Ein-und Ausschalten mit einem Schalthebel veränderbar ist, insbesondere für LandunschinenO Bei größeren übertragenen Antriebsleistungen ist die am Schalthebel auizuwendende Kraft zur Erzielung der erforderlichen Keilriemen-Spannung so groß, daß entweder der Kraftaufwand am Schalthebel zu groß wird oder der Hebelweg. V-belt The invention relates to a switchable drive device with a drive pulley and a driven pulley and at least one V-belt, the voltage of which can be changed for switching on and off with a shift lever, in particular for LandunschinenO In the case of larger transmitted drive powers, the is on the gearshift lever The force to be used to achieve the required V-belt tension is so great that that either the effort on the shift lever is too great or the lever travel.
Die Erfindung hat die Aufgabe, die am Ilandhebel aufzuwendende Betätigungskraft und/oder den Beteitigungsweg zu vermindern.The invention has the task of providing the actuating force to be used on the Iland lever and / or to reduce the participation path.
Die Aufgabe wird dadurch gelöst, daß bei der eingangs beschriebenen schaltbaren Antriebsvorrichtung der Schalthebel mit einer vorgespannten und in einer Endlage über Totpunkt verriegelbaren Feder verbunden ist, deren Vorspannung mit wachsender Keilriemen-Spannung abniaaat. Auf diese Weise wird die am Schalthebel auizuwendende Betätigungskraft zur Erzielung der Keilriemen-Spannung durch die Federkrait vermindert, bzw. aufgehoben. Außerdem kann das sonst eriorderliche Gesperre zum Feststellen des Schalthebels wegfallen. Dabei ist der Aufwand gering und die Vorrichtung ohne große Kosten herzustellen.The object is achieved in that in the case of the initially described switchable drive device of the shift lever with a biased and in one End position is connected to dead center lockable spring, the preload with increasing V-belt tension abniaaat. This way, the one on the gear lever Actuating force to be used to achieve the V-belt tension through the spring force reduced or canceled. In addition, the otherwise necessary lock to the No need to lock the shift lever. The effort and the device are low to manufacture without great expense.
Ein Ausführungsbeispiel der Erfindung ist auf der Zeichnung dargestellt.An embodiment of the invention is shown in the drawing.
Eine Antriebsscheibe 1 und eine Abtriebsscheibe 2 sind durch Keilriemen 6 mieinander verbunden, deren Spannung über eine Laufrolle 3 veränderbar ist. Die Laufrolle 3 ist auf einem hebel 4 drehbar gelagert, der bei 5 um eine gestellfeste Achse schwenkbar und durch eine Verbindungsstange 7 mit einem bei 13 gestellfest gelagerten Schalthebel 8 verbunden ist. Die Verbindungsstange 7 greift an dem freien Hebelarm 4' an. Bei Schwenkung des Schalthebels 8 im Uhrzeigersinn wird die Keilriemen-Spannung erhöht, so daß die Abtriebsscheibe 2 mitgenommen wird. Bei der gezeichneten Ausschaltstellung der Antriebsvorrichtung werden die Keilriemen 6 durch Außenftiiirungen 14, 15, welche gestellfest angebracht sind, und eine weitere Außenführung, die mit dem nebel 4 verbunden ist, so gehalten, daß die Antriebsscheibe keine Berührung mit den Keilriemen hat.A drive pulley 1 and a driven pulley 2 are by V-belts 6 connected to one another, the tension of which can be changed via a roller 3. the Roller 3 is rotatably mounted on a lever 4, which is at 5 to a fixed axis pivotable and by a connecting rod 7 with a at 13 fixed to the frame mounted shift lever 8 is connected. The connecting rod 7 engages the free lever arm 4 '. When turning the shift lever 8 clockwise the V-belt tension is increased so that the driven pulley 2 is taken along. In the illustrated switch-off position of the drive device, the V-belts 6 through external ducts 14, 15, which are fixed to the frame, and another External guide, which is connected to the fog 4, held so that the drive pulley has no contact with the V-belt.
Am Schalthebel 8 ist bei 9 ein sichelförmiges Zugglied 12 gelenkig angeschlossen, an dessen freiem Ende eine vorgespannte Zugfeder 10 verankert ist, die bei 11 gestellfest eingehängt ist. Bei der strichpunktiert gezeichneten Schaltstellung mit gespanntem Keilriemen-Antrieb erhält der Schalthebel 8 durch die Federspannung ein Drehmoment im Uhrzeigersinn. Bei der Anfangsstellung mit ausgeschaltetem Antrieb ist die Feder 10 durch Überschreiten einer Totpunktlage verriegelt und hält den Schalthebel 8 in dieser Stellung, wobei der Schalthebel 8 sich gestellfest abstützt.A sickle-shaped tension member 12 is articulated at 9 on the shift lever 8 connected, at the free end of which a pretensioned tension spring 10 is anchored, which is attached to the frame at 11. In the switching position shown in dash-dotted lines When the V-belt drive is tensioned, the shift lever 8 is provided by the spring tension a clockwise torque. In the initial position with the drive switched off the spring 10 is locked by exceeding a dead center position and holds the Shift lever 8 in this position, the shift lever 8 being supported on the frame.
Durch die Auswahl einer geeigneten Federkraft bleibt die erforderliche Keilriemen-Spannung ohne Aufwendung einer Betätigungskraft am Schalthebel 8 aufrechterhalten. Die Betätigungskraft am Schalthebel zum Ausschalten des Antriebs ist dann sehr klein, da gegen die Vorspannung der Feder 10 die Keilriemen-Spannung wirkt. Die schaltbare Antriebsvorrichtung laßt sich deshalb mit sehr kleiner Betätigungskraft und kleinem Betätigungsweg bedienen.By selecting a suitable spring force, the required one remains Maintain the V-belt tension without applying an actuating force on the shift lever 8. The actuation force on the switch lever to switch off the drive is then very small, since the V-belt tension acts against the bias of the spring 10. The switchable one Drive device can therefore be with a very small operating force and small Operate actuation path.
LeerseiteBlank page
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19772746388 DE2746388A1 (en) | 1977-10-14 | 1977-10-14 | Coupling for agricultural machine V=belt drive - has jockey pulley movable to establish or release drive by altering belt tension |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19772746388 DE2746388A1 (en) | 1977-10-14 | 1977-10-14 | Coupling for agricultural machine V=belt drive - has jockey pulley movable to establish or release drive by altering belt tension |
Publications (1)
Publication Number | Publication Date |
---|---|
DE2746388A1 true DE2746388A1 (en) | 1979-04-19 |
Family
ID=6021491
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE19772746388 Ceased DE2746388A1 (en) | 1977-10-14 | 1977-10-14 | Coupling for agricultural machine V=belt drive - has jockey pulley movable to establish or release drive by altering belt tension |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE2746388A1 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3504602C1 (en) * | 1985-02-11 | 1986-08-21 | Ering Gmbh Metallwarenfabrik, 8300 Ergolding | Mobile lawn-treating appliance with a drive motor for the treatment tool and for the travelling drive |
FR2748077A1 (en) * | 1996-04-25 | 1997-10-31 | Amazone Machines Agricoles Sa | Vee belt and pulley drive system for light transmissions |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1861801U (en) * | 1962-09-26 | 1962-11-08 | Fahr Ag Maschf | DEVICE FOR TENSIONING A TORQUE TRANSMISSION BELT. |
DE6919331U (en) * | 1969-05-13 | 1970-10-15 | Massey Ferguson Gmbh | BELT DRIVE, IN PARTICULAR FOR COMBINE HARVESTERS OR THE LIKE. |
DE2657664A1 (en) * | 1975-12-21 | 1977-06-30 | Hazime Takano | COUPLING FOR BELT DRIVE |
-
1977
- 1977-10-14 DE DE19772746388 patent/DE2746388A1/en not_active Ceased
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1861801U (en) * | 1962-09-26 | 1962-11-08 | Fahr Ag Maschf | DEVICE FOR TENSIONING A TORQUE TRANSMISSION BELT. |
DE6919331U (en) * | 1969-05-13 | 1970-10-15 | Massey Ferguson Gmbh | BELT DRIVE, IN PARTICULAR FOR COMBINE HARVESTERS OR THE LIKE. |
DE2657664A1 (en) * | 1975-12-21 | 1977-06-30 | Hazime Takano | COUPLING FOR BELT DRIVE |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3504602C1 (en) * | 1985-02-11 | 1986-08-21 | Ering Gmbh Metallwarenfabrik, 8300 Ergolding | Mobile lawn-treating appliance with a drive motor for the treatment tool and for the travelling drive |
FR2748077A1 (en) * | 1996-04-25 | 1997-10-31 | Amazone Machines Agricoles Sa | Vee belt and pulley drive system for light transmissions |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8110 | Request for examination paragraph 44 | ||
8131 | Rejection |