DE7605436U1 - MOBILE FLOOR MILL - Google Patents

Description

Patent attorney

DIPL.-ING. B. SCHMID 7 Stuttgart I ₁ Falbenhenn # n »tr. 17 12 Ϊ32 B / SW

Alfred W e h r 1 e Mühlenstr. 133

7831 Bleichheim

Mobile tiller

The invention was a mobile tiller with a drivable milling teeth and / or blades and / or others that are mounted overhung on a holding arm Milling cutter carrying tools, with a milling cutter pivot axis extends transversely to the longitudinal axis of the holding arms and to the bearing axis of the profile cutter. A tiller of this type is already known per se, and like the one according to the invention, it is used, in particular, for working earth

for milling of verges, for milling or re-milling of trenches preferably with a trapezoidal cross-section. The removed material, in particular the excavated material, is in this previously known tiller against the vehicle thrown to which the cutter holding arm is attached. This is advantageous, for example, when a Trench is drawn along a boundary line and J) material does not fall on the property across the boundary may be deposited. The uses of this previously known tiller are relatively limited due to their design. It has to do with the fact that the form milling cutter by means of a holding arm surrounding it on its upper side with a support arm located on the vehicle

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axis of the milling cutter face pointing away from the transport device assigned.

The object of the present invention is to create a mobile tiller of the type mentioned at the outset, which offers a wide range of possible applications, ie _c with which not only verges are milled, but also trenches of different profiles are made

ι and which are also simple and space-saving j

Way to transport it.

To solve this problem, a mobile tiller is proposed according to the preamble of claim 1, and it is designed according to the characterizing part of the first claim. In normal operation it has (^ so the bearing axis of the form cutter, from the vehicle seen outwards downwards. Accordingly, the free milling cutter face also shows in this arrangement of the transport vehicle path. On the other hand, however, it is possible to move the milling cutter through, for example, 90 ° against the transport vehicle pivot so that the free end face now points in the direction of the vehicle. Depending on the attachment of the milling and other working tools you can change the throwing direction of the cutter. That means, that the excavated or removed material once between the vehicle and milling cutter and the other time laterally the end of the cutter facing away from the vehicle is deposited. In a particularly preferred way, you can use the removed Also throw the material straight onto a conveyor, which then transfers it to a vehicle in front or behind loads. For example, screw conveyors, conveyor

bands and the like in question.

If the cutter is swiveled in such a way that the cutter longitudinal axis, which may be identical to the drive axis of the milling cutter in the vertical direction extends, so you can mill with the free end face of the cutter, for example, shoulder. Here is Please note that other milling tools are normally attached to this free face than, for example on the circumference of the cutter.

A particularly preferred embodiment of the invention is characterized in that the holder for the milling cutter bearing axis consists of two via a milling cutter rotation axis There are interconnected sections, the milling cutter axis of rotation in a through the cutter bearing axis laid, in particular vertical plane extends. This makes it possible to turn the cutter so that its free end face, for example, in the direction of travel or, preferably, against the direction of travel shows. In this arrangement, trenches with a curved * or semicircular profile can be cut with the cutter or clean. It is irrelevant whether the

Milling machine in this working position next to or behind the Vehicle is located.

The milling cutter pivot axis is in a further embodiment of the invention attached to the or a displaceable part of a telescopic support arm. That way you can on the one hand draw or clean trenches at a great distance from the route, and on the other hand during the Transports bring the cutter as close as possible to the vehicle or even onto the vehicle. The extension this telescope, like the various swiveling, rotating and tilting movements, is carried out via hydraulic ones or pneumatic cylinders, which can be single or double-acting as required.

The holding arm is preferably one in the working or driving direction extending horizontal axis pivotable, so that it can be used in conjunction with the telescopic sliding movement can bring to any altitude necessary for practical work. Another advantage of the invention is in that the telescopic support arm is mounted on a bogie and is rotatable about a vertical axis. this

enables the milling cutter to be placed on either side of the or behind the vehicle. In addition, in connection with the aforementioned rotation about the horizontal axis Place the milling cutter, which is hanging freely downwards, on a loading area of the vehicle, for example.

The form cutter is partial in a very convenient way with an apron, the latter around a The axis concentric to the milling cutter bearing axis can be rotated and permanently divided. This protective sheet can, for example, the router include on a circumference of 180 ° and each rotated so that an ejection after a undesired direction is prevented.

With a tiller with one and two truncated cones compound milling cutter is a further training the invention is that the mudguard consists of two foldably interconnected sections, wherein the folding axis is located approximately in the plane formed by the truncated cone base surfaces. So can the free section of the mudguard can be raised if necessary

fold, so that the presser is accessible for repair and cleaning purposes.

In another embodiment of the invention, a support device for an auxiliary unit, in particular for a hydraulic or pneumatic drive unit for the presener, is attached to the bogie. The proportionality s ~ · nisse are made so that in normal operation, the auxiliary power unit left the Fahrzeuglängsmitte.lebene and Präseinrichtung for example, are located on the right of this plane. This achieves a good weight utilization, which makes driving easier and protects the vehicle. A further improvement in this regard is seen in the fact that the carrying device can be extended in a telescopic manner and the torque it generates can thereby be increased.

According to a further feature of the invention it is proposed that at least one on the lateral surface Truncated cone of the cutter T-shaped cutting knife removable are attached, this cutting knife in particular from two angle pieces resting against one another with their one leg

exist, these abutting angle legs extend in the radial direction and od between two eyes attached to the cutter. These knives only take on the task of cutting knives, in contrast to previously known designs, where the knives also have a throwing function in addition to cutting · In this way, the new knives are subjected to far less stress than the conventional ones. As a result siem; an anaer? A «ö £« «v« itur.ö icr Erii * idi * ns: before, that behind at least a portion of the cutting blades od a check erstrekkender along a Kegelstunpfmantellinie blade tooth like located opposite r ~~ a radial plane by a.. small angle of in particular about 3 ° to the rear, ie inclined against the normal working direction of rotation. With the Fräier the cutting and the throwing out of the cut or peeled material are separated.

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In a very useful and known way, the form cutter is powered by a motor, preferably a hydraulic motor, drivable and rotatable both forwards and backwards. In this case, the motor axis of rotation corresponds to Milling bearing axis mentioned at the beginning.

An exemplary embodiment of the invention is shown in the drawing. Show it:

Figure 1 the mobile tiller according to the invention from the front, in the working position,

FIG. 2 is a side view of the rotary tiller in FIG

FIG. 3 shows a section from the milling cutter in a perspective view,

FIG. 4 shows a section along the line IV-IV in FIG. 3.

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The mobile tiller consists essentially of a vehicle 1 of suitable size and strength, on the loading area 2 of which a bogie 3 is mounted. A holding arm in the direction of the double arrow 6 can be pivoted about a horizontal axis 4 of this bogie 3. This pivoting movement is achieved with the aid of a pressure cylinder 7. The holding arm 5 can be extended telescopically and consists of two parts in the exemplary embodiment. The longitudinal movement of the displaceable telescopic part 8 is in turn achieved with the aid of a pressure cylinder 9. At the free end of the displaceable telescopic part 8, a bearing plate 10 is attached on both sides, on which there are three pivot axes or bearings. The Sciiw'sniiuchwC 11 iic * vt zur * An! ¹ ?? ^ »« »d & s E-shape milling cutter 12. which is adjustable in the sense of the double arrow 13. The form cutter 12 is via a holder 14 with the

.rx free end of the holding arm 5 connected. On this holder the milling cutter bearing axis 15 is also attached, on which the profile milling cutter 12 can be rotated in the direction of the double arrow 16 is stored. The same applies if a drive motor for the form milling cutter 12 is held on the holder 14, with whose output shaft is connected to the milling cutter. Here

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a hydraulic motor is primarily used. As can be seen in particular from Fig. 1, the form cutter is partially and also over part of its Extent, for example 180 °, surrounded by a protective plate 17 at a distance. This is designed in two parts and has a folding axis 18 so that the fender section 19 can be folded up in the direction of arrow 20 can. This means that the milling cutter is used for repairs, cleaning, inspection and, if necessary, assembly and disassembly accessible. In addition, the milling cutter can, as indicated in Fig. 1 with dashed lines, at an angle be pivoted by at least 90 °, but this can easily be 180 °. The cutter consists of known way of two truncated cones joined together with their larger diameter, and the lateral surfaces are equipped with working tools, for example cutting knives, throwing plates and the like. Furthermore, the Form milling cutters do not necessarily have to be designed as a closed body, rather it is advantageous It is conceivable to simply make it from a skeleton and to use the tools on the various spokes and struts to be attached, in particular to be welded and / or

screws. Screwed tools have the advantage that they can be removed for replacement or repair purposes.

A preferred embodiment of the invention is shown in FIGS. There is concentric on two A T-shaped cutting knife 21 is mounted alternately in circles. For manufacturing reasons However, the T-shaped cutting knife consist of two angular sections, one radially from the Mantle surface protruding angle legs 22 between two Eyes 23 welded to this lateral surface 20 are inserted and detachably fastened by means of screws 24 are. The other angle legs 25 are tangential to an imaginary, concentric truncated cone Truncated cone surface 20. Accordingly, the knives 21 are pure cutting knives without any special throwing function. That which has been detached or peeled off from the cutting knives Material, for example earth and the like, is attached by the behind, in particular, each cutting knife Blade tooth 26 thrown away. It is slight compared to a radial plane through the T-shaped cutting knife 21 inclined to the rear and forms an angle of preferably 3 ° with this radial plane. It is not it is absolutely necessary that this pelvic tooth runs along a surface line of the truncated cone, rather

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he can also assume an inclined position for this purpose in order to obtain a preferred throwing direction. Of course, in a manner not shown, the same or similar teeth are also on the other truncated conical surface 40. All cutting teeth or knives can also be installed in a position offset by 180 ° in order to ensure that the cutter rotates to the right and left. The same then applies to the ejectors. The fan cutter can be driven clockwise as well as counterclockwise. Due to the ^K ~ ^ 'two Sehwenklagen Fig. L, which, as mentioned, need not necessarily be the Schwenkendsöellun & s, and also the motion reversal of its direction of rotation, it is clear that, for example, fine while cleaning or excavating the trench, the material ejected either to the vehicle can fling towards or away from the vehicle. It is just as well possible to hurl the excavation backwards and directly to a transport device carried along, for example a conveyor belt, which in turn loads it directly into a trailer which can be attached to the vehicle 1. In the position shown in Fig. 1, a trapezoidal trench cross-section is achieved with the form cutter. If, on the other hand, the milling cutter is rotated so that its bearing axis runs vertically, that is to say the free end of the bearing axis points downwards, the free end of the bearing axis facing away from the holder 14 can be used

Mill side, flat surfaces, e.g. shoulder ^ If you lower the milling cutter, starting from the in Fig. 2 shown rotary position of the bogie 3, to the rear and pivoted the cutter so that a Placed by its largest diameter plane perpendicular to the direction of travel and in the vertical direction circular trenches can also be built.

^^ J Of course, the mobile tiller not only allows you to work on the right and behind the vehicle,

but also to the left of it.

ff At the upper end of the bearing plate 10 _{in FIG. 1 c}

a pivot axis 28 for a printing cylinder 29 * With its help, the milling cutter 12 in the sense of Arrow 13 pivoted. A linkage 30 is used for this purpose, which is attached to the bearing surfaces by means of the bolt 31 is stored.

The pressure cylinders 7, 9 and 29 are in the exemplary embodiment Hydraulic cylinder. A corresponding unit 32 with the necessary controls is on a support device 33 placed, which can be extended telescopically in the sense of the double arrow 3 ^ 4. She educates

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at the same time a counterweight for the masses overhanging the vehicle on the other side. In addition, this support device 33 is mounted on the bogie 3 so that it is rotated together with this. In the
The unit 32 is located between the cab and the bogie 3 during the transport position
Milling cutter behind the bogie on a corresponding

^ Platform 35 can be put on. The support arm 5 lies flat on the mentioned parts, s $ that overall a very compact and perfectly suitable for the transport device is created. The various possible uses of the tiller according to the invention can be achieved
primarily in that the profile cutter is mounted practically directly on the holding arm 5 and thus a relatively large swivel radius is possible,
which prevents this in a previously known embodiment

ζ is that there the form cutter via an auxiliary arm,
which includes the milling cutter on its upper circumference,
is in a sense supported by its outwardly facing end.

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It was mentioned above that for milling round trenches, i.e. from trenches with an arched or semicircular profile, place the milling head behind the vehicle brings. This is not absolutely necessary, but can also be achieved with the cutter on the side of the vehicle. For this purpose is the Holder 14 is designed in two parts, the two parts being connected to one another via a milling cutter axis of rotation 37 , which is symbolized in Fig. 1 by a dash-dotted line. It is recommended when milling of such trenches, the holder 14, starting from the position shown in Fig. 1, to pivot upwards so this F? äeerdi? * hachse vertically or approximately vertically lapsed.

It was also stated that the unit 32 is intended for actuating the various hydraulic cylinders ^v '. Instead of this, in the case of an hydraulically driven profile cutter, the unit can also be built up from a motor, a pump, an oil tank with a cooler and the usual hydraulic control and regulation devices. Incidentally, a

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Such a unit can be attached to the support device 33 in addition to the one mentioned above and, if necessary, integrated with it to form a unit .

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Claims (12)

- 18 - • 1 * 1 Ii k «.is ^ S Ans ρ r ü c h e 1. Mobile rotary tiller with a drivable milling teeth and / or form milling cutters carrying blades and / or other tools, with a milling cutter pivot axis extends transversely to the longitudinal axis of the holding arm and to the bearing axis of the form milling cutter, characterized that the form milling cutter (12) can be pivoted directly on the holding arm (5) by means of a holder (14) is mounted, wherein the holder carries the milling cutter bearing axis (36) and the latter, starting from a vertical position, is pivotable to both sides. 2. Milling machine according to claim 1, characterized in that the holder (14) for the milling cutter bearing axis (36) consists of two sections connected to one another via a milling cutter axis of rotation (37), the Cutter axis of rotation extends in a laid through the cutter bearing axis, in particular vertical plane. - 19 - 3. Milling machine according to claim 1 or 2 _S, characterized in that the milling cutter pivot axis (11) is attached to the or a displaceable part of a telescopic support arm (5). 4. Milling machine according to claim 3, characterized in that the holding arm (5) around a working or driving - 'direction (38) running horizontal axis (4) is pivotable. 5. Milling machine according to claim 3 or 4, characterized in that H that the telescopic support arm (5) on a bogie (3) is mounted and rotatable about a vertical axis. 6. FrS.se according to one or more of the preceding Claims, characterized in that the Formic cutter (12) partially with a protective plate (17) surround and the guard plate rotatable and lockable about an axis concentric to the milling cutter bearing axis (36) iot. • 7. Milling machine according to claim 6, with one of two cones butt compound form milling cutter, thus identifiable - 2G - 7606436 ■ ··· '■ oil - 20 - shows that the protective plate (17) consists of two foldably interconnected sections, wherein the folding axis (18) is located approximately in the plane formed by the truncated cone base areas. 8. Milling machine according to one or more of claims 5 to 7, characterized in that on the bogie (3) a support device (33) for an auxiliary unit, in particular for a hydraulic or pneumatic drive unit for which the milling cutter (12) is attached. 9. Milling machine according to claim 8, characterized in that d ~ £ the Trsgrorricbtuns (??) teleskoDarti «extendable is. 10. Milling machine according to one or more of the preceding claims, characterized in that on the lateral surface (20) at least one truncated cone of the milling cutter (12) T-shaped cutting knife (21) can be removed are attached, this cutting knife in particular from two with their one leg (22) to each other adjacent elbows exist, these - 21 - abutting angle legs extend in the radial direction and between two on Cutter (12) attached eyes (23) or the like. Are used and that the free, after opposite directions protruding angle legs (25) extend tangentially to an imaginary concentric truncated cone. C_. 11. Milling machine according to claim 10, characterized in that that behind at least some of the cutting knives (21) there is a blade tooth (26) or the like which extends in particular along a truncated conical surface line and which is at an angle of approx ° backwards. i.e. contrary to the normal Arbeicsarenricircüng (59) is inclined. 12. Milling machine according to one or more of the preceding claims, characterized in that the form milling cutter (12) has a motor, preferably a hydraulic motor, can be driven and rotated forwards and backwards.