DE657818C - Acceleration-free and overload-proof drive for polygonal pulleys of excavators, depositors or the like. - Google Patents
Acceleration-free and overload-proof drive for polygonal pulleys of excavators, depositors or the like.Info
- Publication number
- DE657818C DE657818C DEM131659D DEM0131659D DE657818C DE 657818 C DE657818 C DE 657818C DE M131659 D DEM131659 D DE M131659D DE M0131659 D DEM0131659 D DE M0131659D DE 657818 C DE657818 C DE 657818C
- Authority
- DE
- Germany
- Prior art keywords
- roller
- spring
- air cylinder
- double
- planetary gear
- 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
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F3/00—Dredgers; Soil-shifting machines
- E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
- E02F3/08—Dredgers; Soil-shifting machines mechanically-driven with digging elements on an endless chain
- E02F3/12—Component parts, e.g. bucket troughs
- E02F3/14—Buckets; Chains; Guides for buckets or chains; Drives for chains
- E02F3/145—Buckets; Chains; Guides for buckets or chains; Drives for chains drives
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Mining & Mineral Resources (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Retarders (AREA)
Description
Man hat vorgeschlagen, den Antrieb von Baggereimerketten als Planetenrädergetriebe auszubilden und dieses gleichachsig und drehbar auf der Turaswelle zu lagern, wobei das Gehäuse des Planetenrädergetriebes unter Zwischenschaltung einer Schraubenfeder mittels einer am Baggergerüst fest und am Planetenrädergehäuse verschiebbar gelagerten Doppellasche gegen das Baggergerüst abgestützt ist. Die federnde Verbindung zwischen dem Baggergestell und dem Planetenrädergetriebe dient zur Aufnahme der Beschleunigungsänderungen, die durch die vieleckige Ausbildung der Umlenkrolle hervorgerufen werden. Um auch eine Beschädigung des Antriebs durch Überlastung, z. B. durch Auftreffen der Eimerkette auf große Steine, zu vermeiden, hat' man bei dieser Bauart zwischen Doppellasche und Planetenrädergehäuse außerdem noch einen Bruchbolzen angeordnet. Diese Bauart gibt jedoch keine genügende Sicherheit gegen Überlastungen, da die richtige Bemessung des Bruchbolzens Schwierigkeiten macht. Außerdem ist die Auswechselung der Bruchbolzen zeitraubend und erfordert einen längeren Stillstand des Baggergerätes. It has been proposed to drive bucket chains as planetary gears to train and to store this coaxially and rotatably on the Turas shaft, with the housing of the planetary gear with the interposition of a helical spring means a double bracket, which is fixedly mounted on the excavator frame and displaceably mounted on the planetary gear housing, is supported against the excavator frame is. The resilient connection between the excavator frame and the planetary gear serves to record the changes in acceleration caused by the polygonal design of the pulley will. To avoid damage to the drive due to overload, e.g. B. by impact To avoid the bucket chain on large stones with this type of construction one has between Double link and planetary gear housing also arranged a breaking bolt. However, this type of construction does not provide sufficient security against overloads, as the correct one Dimensioning of the breaking bolt makes difficulties. Besides, the substitution is the breaking pin is time consuming and requires the excavator to be idle for a long time.
Demgegenüber besteht die Erfindung darin, daß die mittels, eines elastischen Mittels in eine Mitnehmerkerbe des Planetenrädergehäuses eingreifende Mitnehmerrolle am freien Ende der zwecks Ausgleichs der durch die mehreckige Umlenkrolle verursachten Beschleunigungsänderungen federbelasteten Doppellasche gelagert ist, wobei gegen das freie - Ende ein federbelasteter Preßzylinder drückt, dessen Kolben mit einer Abstellvorrichtung für den Antriebsmotor der Turaswelle und des Fahrwerks verbunden ist. Zweckmäßig wird hierzu ein an dem mittels einer Rolle gegen das freie Ende der Doppellasche drückenden Zylinderkolben befestigter Winkelarm mit einem Hebel verbunden, der beim Austreten der Mitnehmerrolle aus der Mitnehmerkerbe des Planetenrädergehäuses mittels eines Kurvenstücks auf einer am Gerät festgelagerten Rolle gleitet und den federbelasteten, in einer Rast des Hebels blockierten Hebel des Motorschalters freigibt, wodurch der Turas- und Fahrmotor stillgesetzt wird. Die Anwendung von Mitnehmerrollen, die mittels Federn o. dgl. in Mitnehmerkerben des Antriebsrades gedrückt werden, ist an sich bekannt.In contrast, the invention consists in that the means, an elastic means in a driver notch of the planetary gear housing engaging driver roller on free end of the to compensate for caused by the polygonal pulley Changes in acceleration spring-loaded double tab is mounted, against the free - end of a spring-loaded press cylinder presses its piston with a storage device for the drive motor of the turret shaft and the landing gear is connected. For this purpose, an on the means is expedient a roller fastened against the free end of the double flap pressing cylinder piston Angle arm connected to a lever which, when the driver roller emerges from the Driving notch of the planetary gear housing by means of a curved piece on one on the device fixed roller slides and the spring-loaded, blocked in a detent of the lever The lever of the motor switch releases, whereby the turas and traction motor shut down will. The use of driver rollers, which by means of springs or the like. In driver notches of the drive wheel are pressed is known per se.
Auf der Zeichnung ist ein Ausführungsbeispiel des Erfindungsgegenstandes dargestellt. An exemplary embodiment of the subject matter of the invention is shown in the drawing.
Abb. ι zeigt das Planetenrädergetriebe in Seitenansicht und teilweisem Schnitt undFig. Ι shows the planetary gear transmission in side view and partial section and
Abb. 2 eine andere Anordnung des Druckluftzylinders. Fig. 2 shows another arrangement of the air cylinder.
Am Umfang des ■ Planetenrädergehäuses 1 ist die Eingriffskerbe 2 angeordnet, in die die Mitnehmerrolle 3 eingreift, die am freienThe engagement notch 2 is arranged on the circumference of the planetary gear housing 1, into which the driver roller 3 engages the free
Claims (2)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEM131659D DE657818C (en) | 1935-07-23 | 1935-07-23 | Acceleration-free and overload-proof drive for polygonal pulleys of excavators, depositors or the like. |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEM131659D DE657818C (en) | 1935-07-23 | 1935-07-23 | Acceleration-free and overload-proof drive for polygonal pulleys of excavators, depositors or the like. |
Publications (1)
Publication Number | Publication Date |
---|---|
DE657818C true DE657818C (en) | 1938-03-14 |
Family
ID=7332309
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DEM131659D Expired DE657818C (en) | 1935-07-23 | 1935-07-23 | Acceleration-free and overload-proof drive for polygonal pulleys of excavators, depositors or the like. |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE657818C (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE966938C (en) * | 1951-01-09 | 1957-09-19 | Demag Ag | Overload protection for drives, especially for chain conveyors u. Like. In underground operations |
-
1935
- 1935-07-23 DE DEM131659D patent/DE657818C/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE966938C (en) * | 1951-01-09 | 1957-09-19 | Demag Ag | Overload protection for drives, especially for chain conveyors u. Like. In underground operations |
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