DE1925325A1 - Drive for caterpillar vehicles - Google Patents

Description

DR. FRITZ WALTER _{'89 AUQSBURQ}

DlPL-INQ. ERNlCKE uirichspiat * 12

Telephone 27815 and 28844 PATENTANWALTH

Date: May 19, 1969

Files: 330 - 215/216 ern / och

Ea. Alois Eober EG-Maschinenbau 88? 1

Undercarriage for standing tools © with caterpillars

The invention relates to a drive for S provided with vehicles, particularly Sein'oeefaiirzeuge: ,, üem the eaältsseia Haupen several iaufrääer are arranged in pivot arms mounted and resiliently pressed down against the bottom continuously © Saupentrua between the IJtnlei & ra & ren fiir.

Known snow vehicles have two parallel side by side arranged and endlessly revolving caterpillars, between their deflection wheels a number of pivoted running wheels are arranged. * These impellers have the task of

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Telegr.i Tcthnikrat Augsburg - Telephone calls require written confirmation - Spredue «only by agreement Account O5M13 Stadtsparkasse Augsburg - Account 1317 Fürrt-Fugger-Bank Augsburg - Postscheckkonto “333 Mönchen

running below «strand of the caterpillar in the area between the To push steering wheels against the ground in order to thereby to ensure a full-surface attack on the ground. Since the

ι ground is often uneven and wavy, yields the N-EED to make the wheels resiliently, In prior art vehicles this will herbMigeiftÜhrt by pivoting arms * the sinter ielLaStumg v

stand*

With Scitoeel ^ to ^ sen ^ em the grip on the ground is äes @ below run «3a # eaa H? rüms the caterpillars of special thereby smooth namd festgöfahreüeli ^ chhefepistea the

b © si> * iders is big * 3? iähft ättäii Behneefahren via sol

If you have a better sense of sight , you will experience driving peculiarities through the Schwiogungeai of the printed iDaia wheels »These visual vibrations, Besonaöserseheljaungea, can be so strong, Mi siGherheitea and 4-impression ia wake up Mirt ^ ia |> Iferbiöäuiaf

The invention is thus gave up aügrüiidei Sin for ait laupen provided vehicles, in particular vehicles fir & develop "in which a more intense and more uniform grip the Saupe with simultaneous damping of the SchwiQguQgsbewegung Sckwenkarme is obtained for the wheels.

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?> ie erfinäungsgemäße solution consists in that the pivot arms on elastic Damp f ungskörpern, in particular of rubber, _v; oiaTert and the Däsipfungskörper between a prism axis and einer.sie spaced surrounding prismatic "iilse.

Such guami feathers have a particularly strong damping like sufficient compliance so that the in r.ohwenkarmen mounted wheels the unevenness of the ground can easily evade without significant vibrations being able to build up. Kit help stored in this way Laufrääer is a snow vehicle capable of driving over a Solid snow cover provided with sahi-rich bumps to drive at high speed without causing severe knock-on effects or impairment of the driving characteristics appear.

There are ⁴ , although already known vehicles with gucci spring axles, "i: ei in which the wheels are connected to a continuous axle via swivel arms, which is arranged in a support tube surrounding them at a distance and is elastically supported therein with the help of string-like hardware elements Axles are used, for example, in caravan trailers.

The application of this storage principle to the drives for with; "'." However, caterpillar vehicles are new and by no means obvious. In the case of snow vehicles, in particular, it is uncertain whether such an application appears to be expedient at all,

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as such tendon vehicles are particularly exposed to climatic influences, in particular, are exposed to the effects of cold. The experiences with the previously known elastic axes were Made only for vehicles in which the elastic elements extended over the entire length of the axle. From it it could not be inferred without further ado that the substantially differently designed bearing of an impeller of the invention £ Btwet vehicles to apply the previously known elastic storage is suitable.

Practice has shown, however, that with the subject invention the problem mentioned at the beginning can be solved with particular advantage because now each impeller by its elastic mounting has the ability to adapt to the ground and the necessary pressure on the strand running below Exercise caterpillar without causing unpleasant vibrations due to the continued pivoting movement of the pivot arm can. It has also been shown that the elastic mounting according to the invention is much simpler than the previously known one and is also much easier to clean. The fears have not been shown to be true, according to which Cold and snow can be detrimental to the elastic storage.

Ia fiahmen of embodiments of the invention is provided, aa frame of the vehicle short stub axles, in particular made of square hollow profile, to be welded. This is the possibility

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given to make the storage of the swivel arm flying and to simplify assembly and disassembly significantly.

The prismatic sleeve can in the sense of an advantageous embodiment sb ei games s of the invention in the form of a clamp and with splash for clamping on the axis or the stub axles. With this clamp-like training, you have the option of using the Swivel arms are relatively easy to put on the stub axle and the elastic damping bodies by tightening to deform the flange screw connection into its operating position.

It is also advisable to have the wheels in several rows to be arranged one behind the other and staggered from row to row. This arrangement makes a uniform Distribution of all wheels, based on the area of the strand of the caterpillar running below, and the soil adhesion of the caterpillar is significantly increased.

The subject of the invention is also a drive, te the ' For the purposes of the invention, the non-driven deflection wheels in resiliently mounted pivot arms, the latter are connected to adjusting elements, with the help of which by pivoting the swivel arms the caterpillars can be tensioned.

Such an arrangement is independent of the problem

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how the impellers are stored. It can therefore be the The inventive arrangement of the steering wheels can also be used in previously known vehicles that are not elastically mounted Have impellers. Regardless of this, there is of course a particular advantage if both the Running wheels and the aforementioned deflection wheels are elastically mounted in the same way. The elastic mounting The steering wheel also has the advantage that the caterpillar is tensioned while maintaining its elasticity can, whereby an angular adjustment of the deflection wheel axis can also be achieved because of its elastic mounting, lets so that the pulleys carry the caterpillars over their entire circumference.

These and other details of the invention are shown schematically and by way of example in the drawing.

Ss show:

1: a schematic side view of a snow vehicle,

FIG. 2: a side view, partially in section, of an impeller of the tendon vehicle according to FIG. 1 and FIG

3: a side view, partly in section, of one non-driven deflection wheel for the snow vehicle.

The exemplary embodiment of the invention shows a snow glider.

stuff, which for example as a transport vehicle in the mountains

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can be used. This snow vehicle (1) has a steering element (2) which acts on a steering runner (4-). Hit 3 is a bench schematically labeled. On the chassis of the snow vehicle are driven deflection wheels (6) and non-driven Uinlenkräder (7) for guiding a endless caterpillar (5) stored. The run at the bottom of the caterpillar (5) is between the pulleys (6), (7) of running wheels (8) loaded, which are mounted in swivel arms (9). These wheels (8) have the task of running below Run strand down against the ground and press uneven ground compensate for by elastic yielding. For this purpose, the swivel arms (9) are elastically mounted. On the frame vies chassis are stub axles (10) from prismatic sleeves (12) are surrounded at a distance. in the Cabbage space between the sleeves (12) and the stub axles (10) there are elastic damping bodies (11), which are deformed in the State to fill the predominant cavity and thereby stabilize the position of the pivot arms connected to the sleeves (12) (14) bring about. The stub axles (10) and the sleeves (12) are prismatic, their arrangement is chosen so that a flat surface of the stub axle (10) one corner of the sleeve (12) is opposite. A twist of the swivel arm (9) thus has a deformation of the elastic Damping body (11) result, which because of their elasticity to oppose this deformation with considerable resistance, " whereby they have a very power-consuming effect and reduce vibrations immediately. The damping bodies (11) generate the requirement.

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borrowed restoring force to the swivel arm (9) with the impeller (β) to move back into the original clamping position when the unevenness of the floor has been overcome,

Ia example of Figure (2) is shown _r that the sleeve (12) is slotted on one side and provided with flanges (13) which can be screwed against each other. This arrangement allows the sleeve with loosely inserted elastic damping bodies (11) to be placed on the stub axle (10) and the deformation of the damping bodies (11) to the shape required for the operating position by screwing the flanges (15) against each other. At the same time, an axially immovable mounting of the swivel arms (9) on the stub axle (10) is achieved.

The stub axles (10) are made of square tube in the exemplary embodiment manufactured and butt welded to the frame of the snow vehicle (1). This results in a floating mounting the swivel arms (9) with the advantage of being easy to replace. Of course, other elastic mountings can also be used within the meaning of the invention, so that the invention not limited to the embodiment.

Ic embodiment of Figure 3 is shown that also ' ias single non-driven deflecting wheel (7) can be mounted in an elastically flexible manner with the aid of pivot arms (14).

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In the exemplary embodiment, the elastic mounting (15) corresponds to the mounting described in FIGS. 1 and 2 for the swivel arms (9) of the running wheels (8). It is also shown that this elastic mounting (15) can also be used with the help of an adjusting element (16) like this? adjust can that you can thereby stretch the caterpillar (5). The consequence of the elastic storage is also the Possibility created to bring about an angular adjustment of the deflection wheel (7) in order to achieve a uniform fit the caterpillar (5) over the entire width of the Uailenkrades (7) to ensure. The adjusting element (16) can be designed so that it adjusts the angular position of the swivel arm (14) changes. But it is also possible, for example, the stub axle of the elastic mounting (15) in the direction of travel to move and thereby bring about tension in the caterpillar (5) .

It will be apparent that the invention is not limited to that shown Embodiments is limited, but also includes all variants that solve the problem according to the invention are able to solve.

Patent claims:

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Claims (3)

Patent claims: Undercarriage for caterpillar vehicles, in particular Snow vehicles, where between the pulleys for the endless caterpillars arranged several running wheels mounted in swivel arms and resiliently downwards against the bottom running Caterpillar ends are pressed, characterized in that the pivot arms (9) on elastic damping bodies (11), in particular made of rubber, mounted and the damping body (11) between a prismatic axis (10), and one with it Distance surrounding the prismatic sleeve (12) are arranged. 2.) Drive according to claim 1, characterized in that g e k e nnz e i c hn e t, that short stub axles (10), in particular made of a square hollow profile, are welded to the frame of the vehicle (1). 3.) Drive according to claim 1 or 2, characterized in that the prismatic sleeve (12) approximately in - II 009848/0681 Telegr .: Technikrat Augsburg - Telephone calls require written confirmation · Consultation time only by agreement Account 059113 Stadtsparkassc Augsburg - Account 1517 Fürst-Fugger-Bank Augsburg - PotUdiedckonto WJW Munich Form of a clamp and with splashing (13) for Tightening on the axle or the stub axles (10) is provided. 4-.) Drive according to claim 1 or the following, characterized in that the wheels (8) in several Rows are arranged one behind the other as well as offset from row to row next to one another. 5) running gear, in particular according to claim 1 or one of the following, characterized in that the non-driven unilateral steering wheels (7) are mounted in elastically mounted swivel arms (14) and the latter are connected to adjusting elements (16), with the help of which by swiveling the swivel arms ( 14) the caterpillars (5) can be tensioned. Dr. P. Walter and Dipl.-Ing. Ernicke Patent attorneys