EP0169248A1 - Combined road-milling and groove-cutting attachment for excavators, loaders, earth-moving vehicles, rollers and tractors - Google Patents

Abstract

The attachment device (2) comprises a lifting apparatus for attachment to rollers, tractors, graders, road finishers, to the scraper plate of excavators and to the ditcher frame of earth-moving vehicles (1, 10-13). This device also contains a sighting means (45), an apparatus for preventing the rollers travelling over the milled material (15), guide means to hold the device in the milling path or at specified intervals from kerbs (17, 23, 24), a rotating apparatus (30-36) and a tilting apparatus (26, 29), a means for simultaneously milling with 2 milling wheels (37), and many other apparatuses.

Description

Additions, add-ons and attachments to the attachment as it was filed with the German Patent Office, DE 3213898 A1 and the European Patent Office 83103471.5-2303 / 0092128.

The invention relates to a number of additions, improvements, additional mounting devices and Zusatzein _- devices for the above-mentioned attachment. A patent has been filed for this attachment for attachment to hydraulic excavators, backhoe loaders and front loaders. On many construction sites, where milling and cutting work has to be carried out, there are no hydraulic excavators, backhoe loaders and front loaders or, as in pure road surface construction companies, the carrier devices mentioned above are not even available in the company. For this, however, devices are available on the construction sites of these companies, such as rollers, graders, tractors or other devices that can be used as a carrier device for the attachment. The invention relates on the one hand to the combination between these carrier devices and the attachment, so that, for example, the attachment that is attached to a roller becomes a roller attachment and a roller to which the attachment is attached becomes a combined compaction road milling and joint cutting device. On the other hand, the invention relates to the various attachment devices that make the attachment of the attachment to the carrier device possible in the first place. An embodiment of these attachments is described in the drawing. It is an angled mounting frame (1), on the upper angled leg of which the attachment (2) is attached at the bottom and on the two angled legs attached to the outside are mounting options, e.g. in the form of screw holes (3) or welded-on holding bushes (4) for attachment the carrier devices or on special holding devices or other attachment devices for the various carrier devices. - In sewer and pipeline construction, if the excavator is equipped with a dozer blade, it is advantageous to attach the attachment to the dozer blade with an attachment device in the form of a clamping device or screwing device. The advantage is that the attachment does not have to be constantly replaced with the bucket on the boom and vice versa. The excavator can first cut the road surface using the milling wheel attached to the dozer blade and pressed into the road surface by the hydraulics of the leveling machine and then, after turning the upper carriage by 180 °, pull out the surface between the joints and then dig out the trench. After a posture of usually 50 meters has been lifted, the uppercarriage is turned again by 180 ° and the next posture is now cut with the attachment attached to the dozer blade. Similarly, the attachment can be attached to the blade or the dozer blade of a grader. In the following, this attachment is shown using an exemplary embodiment and explained in more detail with a drawing: the clamping device consists of two mounting rails (5), at the lower end of which there is a holder for the dozer blade (6) and where at the upper end there is an adjustable holder ( 7), which is placed on the top of the dozer blade from above. The mounting rails are clamped to the dozer blade by the clamping jaws (8) fastened to this holder and the screws (9) fastened therein. The angle frame mentioned above is screwed onto the front of the mounting rail.

Rollers, tractors and other carrier devices do not have a hydraulic lifting device. A lifting device was developed for the attachment of the attachment to these carrier devices, with which the milling drum or the milling wheel of the attachment can be pressed into the road surface and the attachment can be lifted for transport. Without such a lifting device is the attachment to carrier devices that do not have their own lifting device Having a device is not possible. The grader has its own lifting device, but for some uses it is cheaper to attach the attachment to the back of the grader frame, because then obstacles, e.g. the curb, can be milled across the street, which is not possible when the attachment is on the coulter is attached. For this reason, the attachment of the attachment with the lifting device is also suitable for attachment to graders and possibly to the excavator undercarriage if there is no dozer blade.

Since last year, backhoe loaders have been increasingly equipped with a creeper. It is more advantageous in this case that the attachment is attached to the frame of the bucket with a lifting device, since the backhoe loader can then mill and cut when driving slowly forwards and this work no longer has to be done by moving the boom back and forth.

In the following, the invention, the connection of the carrier device, lifting device and attachment, is illustrated with the aid of only one embodiment and explained by a drawing: attached to a mounting device on the carrier device (10) is a frame (11) to which both the cylinder ( 12) and a mounting plate (13) which can be pivoted. The piston rod of the cylinder is connected to this mounting plate, and the above-mentioned angle frame (1), in which the attachment (2) is located, is screwed onto the mounting plate. The mounting plate and thus the attachment are raised and lowered by the hydraulic cylinder.

The attachment shown in the above-mentioned patent application drove during milling and cutting with the rollers of the support and depth adjustment device over the milled material, because this material was thrown in front of and onto the rollers. The result was that the milling depth decreased or an exact adjustment of the cutting and milling depth was no longer possible. It was also found that the milling material was pressed into the surface of the ceiling by the rollers pressed onto the surface of the road, especially when the ceiling was soft in summer. This caused damage to the ceiling. To remedy this, a device has been developed which prevents the rollers from driving onto the milled material. An embodiment of the invention is shown in the drawing and is described as follows: wheel caps (15) are attached above the rollers of the attachment (14), on the front of which scraps (16) are attached in an elongated hole extending to the road surface. The hubcaps prevent the milled material from falling onto the rollers and the scraper pushes the material in front of the roller aside.

When milling with the attachment shown in the above-mentioned patent application mounted on excavators, front loaders and backhoe loaders along watercourses or curbs, it was not possible to keep the device at a precisely defined distance from the curbs or generally lateral limits, especially if the Streets were profiled. The result was that the milling drum dodged towards the watercourse or the curb and damaged the stones of the watercourse or the curbs. In order to overcome this disadvantage, a guidance and directional posture has been developed. An embodiment of the invention is shown in the drawing and is described as follows: Where the hoods are attached to the wings of the attachment with screws, a frame (17) with a spindle (18) and spindle guide (19) is attached. Be at the end of the spindle there is a fork piece (20) with an axis (21) and a horizontally lying roller (22). When working with the attachment, this roller runs against the curb or other side limits. This means that the exact distance between the milling drum and the curb is always maintained. Since such a device is attached to the implement both at the rear and at the front, even when the implement is working in curves, the milling drum is prevented from damaging the water course or curbs. The lateral distance can be changed by turning the spindle in or out.

When the attachment was attached to drive-steered loaders, it was found that the loader and thus the attachment could not be held in the desired direction during milling. The loader and the attachment dodged left or right at the slightest difference in resistance, making it impossible to mill a straight path with a reasonably sharp edge. To achieve this, another guidance and directional holding device was developed that holds the loader and thus the attachment in the direction of the already milled track. An embodiment of the invention is shown in the drawing and is described as follows: The device consists of two guide plates (23) which are rotatably, eccentrically and laterally displaceably mounted on an axis (24). This axle is attached to the angle mounting frame in which the attachment is fastened, at the rear leg at the bottom. After the milling drum has started to mill the milling track and the rear, vertical leg of the angle frame is above the start of the milling track, the two guide plates slide into the milling track, each on one side and thus prevent the attachment from moving sideways . As a result, the loader and thus the attachment are held in the direction of the milling path.

In a number of cases ea is required to mill at an angle, e.g. on one side 3 cm deep, on the other tapering to 0. This could not be done with the attachment in the previous form because it could not be tilted to the side. This fact limited the possibility of using the device. To overcome this disadvantage, a tilting device was developed. An exemplary embodiment of the invention is shown in the drawing and is described as follows: Between an attachment device (5, 6, 7, 8, 9) or the attractive device (11, 12, 13) and the rear leg of the angle frame described above is located a base plate (25). Between this base plate and the rear leg of the angle frame described above, there is a rotary connection, in that firstly a pivot pin (26) connects both plates and secondly in that four stud bolts (27) are welded onto the base plate, which are in four curved elongated holes (28) in the rear leg of the angle frame. The leg is pressed against the base plate by screwing nuts onto the stud bolts and washers protruding laterally beyond the elongated holes. This means that it can be tilted to either side and locked in any position. The tipping can be done by hand or hydraulically with a cylinder (29).

The attachment in the previous form could only be firmly connected to the boom of an excavator and not laterally rotatable. The result was that the excavator could only work with the attachment on the boom if the boom was exactly in the middle of the undercarriage. If the uppercarriage and thus the boom were swiveled to the left or right, the attachment was at an angle to the undercarriage in the direction of the boom, ie it could not be milled or cut on curbs or other side obstacles. The result was that the attachment attached to the excavator was of limited use. To remedy this shortcoming, a rotating device was developed.

An embodiment of the invention is shown in the drawing and is described as follows: The rotating device consists of an upper plate (30), on the lower side of which a worm wheel (31) is screwed on, and of a lower plate (32) on the upper side a bearing block (33) for the screw (34) is welded on. The upper and lower plates are clamped together by a bearing pin (35). The worm is rotated by a hand crank (36) and thus the attachment screwed onto the lower plate is rotated in relation to the attachment plate attached to the carrier device. A lock engages when the crank handle is removed.

The attachment in the previous form could only work with 1 milling disk. With a corresponding design of the second flange on the main drive shaft of the attachment, it is now possible to cut with 2 milling disks (37) at once, after attaching a milling disk to each flange at a distance of 30 cm. In addition, intermediate pieces (38) have been developed, which are inserted between the flange and the main drive shaft. As a result, it is now possible to work with 2 disks at a distance of 2 cm in the range from 40 cm to 10 cm depending on the required trench width. The advantage of working with 2 disks is that working is much cheaper and faster than just one disk. You also have the advantage that you have two joints running exactly parallel to each other.

A disadvantage of the previous attachment was that it was not possible to mill lengthways directly on curbs because the support wheels and the shaft bearing were on the side of the device. The result was that the ceiling could not be milled over a width of about 12 cm on the curb and this strip had to be removed by hand using the demolition hammer. A side milling device was developed to overcome this disadvantage.

An embodiment of the invention is shown in the drawing and is described as follows. On the side plate of the frame of the attachment, a holder (39) for mounting the shaft (40) is inserted, which is inserted into the splines of the main drive shaft. At the end of this shaft is a flange (41) on which either a 15 cm wide milling drum (42) can be screwed on or a milling disk (43), possibly with spacers. If the milling head is screwed on, it is possible to mill directly up to curbs over a width of 15 cm. After removing the milling head, you can then work with the standard milling drum. Since the milling track that is created when working with the 15 cm side milling head overlaps with the milling track on the standard roller _, a completely flat milling surface is created away from the curb. The time-consuming additional work is no longer necessary. If, instead of the milling head, a milling disk is placed on the flange of the side milling device in addition to a milling disk on the main drive shaft of the attachment, parallel cuts at a distance of up to 60 cm are possible at the same time, i.e. not only for cable trenches, usually 30 - 40 cm wide, but also for gas and water pipe trenches that are up to 60 cm wide, can be cut simultaneously with 2 slices. It is also possible to place a disc with a larger diameter (43) on the flange of the side milling device and cut it deeper than with the standard disc that is limited in diameter by the dimensions of the attachment.

The attachment was not previously equipped with a sighting device. Such a sighting device has now been developed for this device. When working with the attachment, it was found that it was very difficult for the driver of the carrier to cut a straight joint. Originally, it was assumed that if a line was drawn with chalk on the road surface, the driver could use the support wheels along this line and it would be possible to cut a straight joint. The but was not the case. The chalk line on the ceiling was quickly filled with milled material in the area of the support rollers, so that the line was no longer visible and the driver could consequently no longer comply with it. For this reason, a sighting device was developed. An embodiment of the invention is shown in the drawing and is described as follows. On the upper axis, which connects the rockers and through which the adjusting spindle passes, 2 clamping ear caps (44) are attached, through which can be inserted from each side and moved to and from each side a visor rod (45) is rotatably clamped. The visor rod is bent at one end by 90 ° and is adjusted so that this bent part points with its tip down on a marking on the road.

If carrier and attachment devices can be used more flexibly, this is an advantage for the users of these devices because the utilization of the device is increased and the device becomes more economical. For this reason, a roller, a milling wheel and a milling head were developed for the attachment, which are equipped with wood shredding tools, especially for shredding stumps. Both the roller and the disc as well as the head can be mounted on the main drive shaft as well as on the drive shaft of the side milling device.

So far there are stump grinders that are attached to the frame of tractors and are driven by a PTO shaft. There are also stump grinders that have their own motor. Apart from the greater versatility, the attachment shown here with the wood shredding tools attached to the boom, e.g. the boom of an excavator or backhoe loader, has the following additional advantages: with the attachment on the boom, stumps can be milled much deeper below the surface and shredded than with all devices previously on the market because the boom of an excavator or backhoe loader can be lowered 3 - 4 m below the surface without difficulty, and the lowering depth is even greater for larger excavators. With the devices on the market, stumps can be shredded to a depth of about 80 cm up to 1 m. Another advantage is the much greater mobility of the attachment with wood shredding tools attached to the boom. Due to the 3 boom cylinders and the swivel mechanism, movements can be carried out in all directions. This means better and faster adaptation of the tool to the stumps to be shredded and easier handling. The result is a faster workflow and therefore cheaper work. In addition, the attachment with the wood crushing tools is less expensive to manufacture than, for example, an attachment to a tractor, because the backhoe loader is both supported and the bracket and guide against the stub is already provided by the boom. With the attachments for tractors, both a support and a hydraulic guide device for the tool must also be manufactured.

Another additional device for the attachment is the distributor (paver), which is attached either to the attachment frame or to the attachment lift / tipping frame of the attachment or to the attachment itself. An exemplary embodiment of the invention is shown in the drawing and is described as follows: The distributor consists of a rear (46) and side panels. There is a scraper (47) at the bottom of the rear panel. There are 4 side plates, 2 of which are fixed on the outer sides (48) and 2 are displaceable (49). By lifting with the lifting hydraulics of the carrier vehicle or the lifting hydraulics described above, the scraper plate can in the required Height can be set, and the required profile by the tilting device. After the profile and the height have been set, the support wheels of the implement are lowered onto the road surface by the spindle. They now serve as a support and guarantee the installation depth and profile once set, regardless of the movements of the carrier device. The installation width is determined by the two sliding side panels. By attaching a push roller device (50) to the carrier device or the mounting frame, the tipper vehicle is pushed and at the same time kept at the distance in front of the distributor that is required to tip the black ceiling material into the distributor.

The advantage of this additional device is particularly evident in ceiling repairs. First of all, the damaged ceiling spots can be milled off with the attachment equipped with the road milling drum, then new asphalt material is installed at the correct height and with the correct profile by the distributor. With this ceiling repair, rollers must always be available for compaction on the construction site, so that the attachment of the attachment to the rollers is therefore advantageous. In addition, the attachment of the attachment with the distributor directly in front of the roller has the great advantage that one operation can be saved because the asphalt is distributed and the asphalt compacted in one operation. The distributor attached to the attachment frame of the attachment streamlines the ceiling repair work considerably. Instead of 3 devices, namely a self-propelled road milling machine, a paver or the elaborate distribution of the asphalt by hand and the roller, only one device is required, namely the combination: roller with the road milling attachment with the attached distributor. Instead of 3 work steps, the work can be carried out in 2 work steps. The result is a significant reduction in the cost of ceiling repairs.

If the area to be repaired in the ceiling is too wide, perhaps covering the entire roadway, it is difficult to distribute the black ceiling material evenly over the entire width only with the distributors. If the distributor is attached to the side of the carrier, e.g. Because the carrier device is not allowed to drive on the distributed black blanket material or the material is to be distributed on the footpath, 80 especially in the case of smaller and lighter carrier devices, due to the lateral pressure on the carrier device, there is a risk that ee will be pushed out of its direction of travel if too much material is present the distributor. In order to avoid these disadvantages, a screw device for the attachment was developed. An embodiment of the invention is shown in the drawing and is described as follows: On the side of the frame of the attachment, a shaft holder and bearing (39) is attached (the same as is required for the side milling device). One end of the worm shaft (51) is inserted into this bearing up to the spline teeth in the main drive shaft. The worm (52) is then driven by this main drive shaft.

The advantage of the auger in connection with the distributor on the support mounting frame or on the attachment is that there is a better distribution of the black ceiling material over a larger width and that, particularly when it is attached to the side, less material is sufficient for uniform distribution and thus less lateral pressure on the Carrier vehicle is exercised and thus the carrier vehicle is not turned laterally out of the lane, especially if it is lighter. This auger can not only be used to distribute asphalt but also from other materials such as gravel, sand, gravel, topsoil, lean concrete, etc.

However, not only a distributor sleeve can be used in the screw device, but also a backfill - sohneoke for backfilling trenches, a cutting auger eg for cutting embankments and trench walls or a milling auger eg for milling banquets.

Through this screw arrangement with the different screws, the versatility of the attachment is increased and the device becomes more economical for the entrepreneur.

If the attachment is driven by the hydraulic pump of a backhoe loader and is therefore connected to the hydraulic system of the backhoe loader, it has proven to be advantageous to install a flow divider which divides the quantity into the quantity required for the slow movement the boom cylinder is required and the remaining amount that is available for driving the hydraulic motor on the attachment (Fig. 6). This ensures that there is always enough oil available for the movement of the boom, but at the same time only ever the small amount that is required to slowly move the boom cylinders and thus the boom. In this flow divider, the oil looks for the easiest way, which leads to disruptions in the workflow.

With road milling inserts of the attachment, it has proven to be very time-consuming to pick up and load the milled material. Since the milling width is only 20 or 40 cm, the use of front loaders is practically impossible. This means that the material has to be picked up by hand with the shovel. The inexpensive manual work is avoided by a mounting device for the attachment. An exemplary embodiment of the invention is shown in the drawing and is described as follows: On the rear lower axis of the attachment, mounting containers (60) are used to mount a receptacle (53), which is supported on the rear on rollers (61). There is one in the receptacle Storage (59) a screw (54) with screw tube (55) attached. Both go up at an angle to the side or backwards. The drive is in the form of a motor (56) at the upper part of the screw. In the upper part of the screw tube there is an ejection opening (57) and an adjustable slide (58). The material is fed through the receptacle into the screw, which conveys the material upwards, from where it is transported via a slide into a transport vehicle. A spacer frame (62) is installed between the attachment and the attachment in the carrier devices, where there is not enough space for the screw between the attachment and the attachment.

A disadvantage of the previous version of the attachment was the relatively long time it took to change the milling tools. In order to shorten this time and to be able to make the change more quickly, a device was developed which enables faster change. An embodiment of this device is described in the drawing: the milling tool, e.g. in the form of the milling disk (37) is equipped with elongated holes (63) at the ends of which there are depressions (64) which are larger than the diameter of the elongated holes. The elongated holes are pushed over the slightly loosened bolts (66) located on the flange (65) of the drive shaft. These bolts (66) equipped with centering in the form of centering rings or heads of an Allen screw screw the tool onto the flange of the drive shaft with just a few turns. The centering ring or the head of the Allen screw is guided into the recess. This will center and lock the tool. The advantage of this invention is that not all screws have to be unscrewed and screwed in again as before when changing from one milling tool to the other, but that these screws only have to be loosened with a few turns until the centering ring or the Allen head comes out of the Lowering comes out. Then the two halves of the milling tools fall out.

The authorities are now demanding that joint edges be milled in a T-shape in order to obtain a better bond between the old and the new road surface. In order to accomplish this task, a combination between joint milling wheel and milling drum was created in such a way that a milling drum can be screwed onto the side of the joint milling wheel in different diameters. This makes it possible to cut a joint at the same time, e.g. at a depth of 15 cm and in the same work process, the road surface next to it, e.g. 10 cm and 3 cm deep. The advantage is that you save one operation.

The attachment, e.g. attached to the arms of excavators and backhoe loaders, on the side or center of which the drive shaft is fitted with a tool holder with wood chopping tools, can not only be used for chopping stumps, as described above, but also for milling tree trunks, branches and bushes. Normal saw blades would jam and break on the excavator arm. The advantage of using the attachment on the boom of excavators for milling tree trunks and branches is, above all, that branches and trunks are milled to the extreme height and reach of the excavator, where otherwise only ladders or lifting platforms can be used can. On the frame of the attachment, a rotatably mounted shock-deflector device held by a spring can also be attached in such a way that its edge cuts off with the edge of the milling disk. When the milling disk penetrates the trunk, the impact deflector device presses against the trunk above the disk. With the forward movement of the milling disc, the pushing device is pushed backwards against the spring pressure, i.e. the pressure increases. When the log is almost milled through, the impact device causes the log to fall to the side opposite the machine.

When the disc with the wood chopping knives attached to the side milling drive is rotated by 90 ° and forward in horizontal position, the attachment can be used to mill (saw effect) bushes. The shock-repelling device can then be used as a holding and guiding device which guides the bushes into the milling disk. When swiveling the boom, large amounts of bushes can be cleared in a very short time.

Another tool that can be placed on the drive shaft of the attachment at the side or in the middle is a disc or a wheel that is equipped with trench cutting teeth or trench cutting chisels. If the attachment is attached to the basic device or its extension arm so that the trench cutter is placed vertically in the direction of travel, then slots in the ground or in soft rock can be excavated, e.g. for drainage or cables.

Another tool that can be attached to the drive shaft of the attachment on the side or in the middle is a combined cutting (milling) centrifugal wheel for group milling. An embodiment of this tool is shown in the drawing and is explained as follows: The cutting (milling) centrifugal wheel (67) is equipped with cutting (milling) knives (68). These knives are equipped with both a cutting edge and hard metal chisels, so that sand and loam-containing soil can be cut on one side and hard soil can be milled. The foot of the cutting knife is designed so that the cut or loosened soil can be transported to the outside towards the edge. This is done in that the knives are arranged in a spiral. In order to be able to cut the desired trench profiles, trench profile cutting plows (69), which are held on the frame, are attached to the sides of the cutting centrifugal wheel. When the carrier device moves forward or when the boom is moved, the base not in the area of the cutting centrifugal wheel is pushed into the knives of this centrifugal wheel.

The advantage of this invention is that the entrepreneur can now also carry out his group milling work with the attachment described here. Another advantage of this special design of the group milling machine is that the transport-spinning process of the cut material does not take place over a surface, but is continuously interrupted by spring knives. This proves to be a great advantage for sticky floors, bran or clay. These floors have a hard time sticking because they are constantly loosened by the interrupted centrifugal surface. The effect is similar to that of a paddle snail compared to a continuous snail.

Another one. Tool that can be attached to the side or center drive shaft of the attachment is a snow blower blower wheel, the attachment of the attachment equipped with the snow blower blower wheel on the boom of an excavator, which is not yet known, has the great advantage that With this combination you can clear snow where you could not get with the previously known snow blowers.

The novelty of the invention lies primarily in the fact that a large variety of tools and additional parts, namely all those shown in the above description, can be attached to one device and that this device is an attachment that can be attached to a large number of carrier devices can be grown. That is, the novelty lies in the large number of possible combinations of the attachment and tools or additional parts on the one hand and the large number of combinations of the attachment with different carrier devices and in the means required for this. There has never been an attachment in which even one of the tools described above was interchangeable with only one of the other tools described above, and there has never been an attachment using these various interchangeable tools conditions on so many basic devices, whose frames, brackets, dozer blades, etc. could be attached using the attachment or lifting devices described. This is also the great advantage of this invention for entrepreneurs. They no longer need a large number of self-propelled special machines or a large number of special attachments on their construction sites, for which they then need a large number of carrier devices. For the entrepreneur it is now sufficient to have only the attachment shown here, which he can then attach to any carrier that he has anyway for other work on the construction site. By using the various tools described above, he can carry out a wide variety of work on the respective construction sites. Firstly, this leads to better utilization of the carrier devices, ie costs are saved and the carrier devices become more economical. Secondly, this means that the entrepreneur has to buy fewer special devices or special attachments, which are almost never used anyway, ie it leads to a large saving in capital and capital costs. Instead of purchasing expensive special machines, the attachment described here with the appropriate tool is used for the corresponding special application. In addition, due to the advantages described above, in some cases this work can be carried out more cheaply than with the previously known special devices.

In the patent application mentioned at the beginning, a support and depth adjustment device is described, which is attached to the drive shaft of the attachment in a freely swinging manner. There may be situations in which the attachment is used, in which it is more advantageous if this supporting depth adjustment device is suspended on the frame in a freely swinging manner, in such a way that the pivot point coincides approximately with the axis of the drive shaft.

The cut joint is so wide that bicycles can get into it with their tires: Since the milled material is distributed over the full width of the protective hood of the attachment and the joint or joints are not filled with milled material, accidents can occur come. Therefore, until now, the construction sites on which joints were cut either had to be blocked off or a man had to sweep the milled material into the joints. A device has therefore been developed that feeds the milled material into the joint or into the joint when milling with two cutting wheels. An embodiment is described as follows: A piece of solid rubber acting as a scraper, approximately the length of the protective hood, which has an opening in the area of the joint or joints, is fastened to the edge of the protective box or the axis in such a way that the milled Material is scraped away from the road surface and piled up and only has the option of exiting the protective box through the opening in the rubber, ie in the area of the joint or the joints. As a result, all milled material is collected and piled up in the area of the joint or joints. With this device, the costs can be saved for the man who would otherwise have to sweep the material into the joints with the broom.

Claims (25)

1. Attachment for attachment to hydraulic excavators, backhoe loaders and front loaders, consisting of a frame in which there is a drive shaft that is driven by a hydraulic motor from the hydraulic system of the carrier device, with either a milling disk for cutting joints in on this drive shaft Roads or a road milling drum for milling road surfaces can be attached (publication of the German Patent Office DE 3213898 11; European patent application publication number 0092 128 A1), characterized in that this attachment is or can be attached by means of attachment devices (1, 5 - 8) on rollers, tractors, graders, asphalt pavers and other carrier devices, as well as on the dozer blade, on the dozer blade and on the coulter of graders, and on the backhoe frame of a backhoe loader. 2. Claim to 1, characterized in that a lifting device (10 - 13) is attached to either rollers, tractors, pavers, the frame of graders, the backhoe frame of backhoe loaders and all other carrier devices that do not have their own lifting device, either directly on Carrier device or to an attachment that is attached to the carrier device, with which the attachment can be raised and lowered. 3. Claims to 1 and 2, characterized in that this device is equipped with a device by which milled material is prevented from falling onto the support wheels of the support and depth adjustment device and the support wheels move over the milled material (15, 16). 4. Claim to 1 to 3, characterized in that this attachment or the carrier device to which the attachment is attached is equipped with a sighting device (45). 5. Claim to 1-4, characterized in that the attachment is equipped with a guide device (23, 24), which holds it at certain distances from lateral boundaries. 6. Claim to 1-5, characterized in that the attachment can be tilted laterally to both sides by means of a tilting device (26-29). 7. Claim to 1-6, characterized in that the attachment can be rotated by means of a rotating device (30 - 36) in relation to the boom of the carrier device. 8. Claim to 1-7, characterized in that 2 milling disks can be attached to the flanges of the drive shaft of the attachment at the same time (37). 9. Claim to 1 - 8, characterized. that intermediate pieces can be inserted between the flanges of the drive shaft of the attachment and the milling disks (38). 10. Claim to 1-9, characterized in that a side milling device (39 - 41) is attached to the attachment, the drive shaft of which is driven by the drive shaft of the attachment. 11. Claim to 1, 2, 6, 7 and 10, characterized in that the attachment on the boom or lifting arm, e.g. is attached to the boom of an excavator or lifting arm of a loader, with a tool carrier on the side or center mounted drive shaft e.g. in the form of a roller, a disc or a head equipped with wood shredding tools. 12. Claim to 1 - 10, characterized in that a distributor (paver) (46 - 49) is attached to the attachment or to the attachment or lifting or tipping frame with which the attachment is fastened to the carrier device. 13. Claim to 1 - 6 u. 12 characterized in that a worm device (51, 52) is interchangeably attached to the implement driven by the drive shaft of the implement, the worm of this worm device may consist of a push, pull or combined push-pull screw, as well as a backfill , a distributor, a cutting or a milling screw. 14. Claim to 12 u. 13 characterized in that push rollers (50) are present which hold the tippers at a certain distance from the distributor or the screw. 15. Claim to 1 - 10, characterized in that the milling tools are equipped on the lateral fastening surfaces with parallel elongated holes, at the ends of which are provided depressions, the diameter of which is greater than the width of the elongated holes, the attachment to the flanges of the drive shaft having the centering means, the dimensions of which correspond to the subsidence. 16. Claim to 1 - 10 u. 15 characterized in that on the attachment or the attachment device tzw. A device (53, 58) is attached to the carrier device on which the attachment is attached, which device receives the milled material, transports it up and dumps it. 17. Claim to 1 - 10, characterized in that the attachment is equipped with a guide device (23, 24) which holds the attachment in the direction of the milling path which has already been milled. 18. Claim to 11, characterized in that above the tool carrier attached to the frame, a shock protection device is attached, which is rotatably mounted and held by a spring. 19. Claims to 1 - 11, 13 u. 16 characterized in that on the side or central drive shaft a milling disk equipped with trench cutting teeth or trench cutting chisels. 20. Claim to 1, 2, 4, 6, 7, 10, 11, 16 u. 19 characterized in that a cutting (milling) centrifugal wheel for group milling is exchangeably attached to the side or central drive shaft, with a trench profile cutting device attached to the frame and located below and on the sides of the cutting (milling) centrifugal wheel. 21. Claim to 1 - 10, 15, 16 and 17, characterized in that the attachment is equipped with milling tools that simultaneously mill a joint and a milling track side by side. 22. Claim to 1 - 21, characterized in that the attachment is equipped with a support and depth adjustment device, which is attached to the frame in the specific area so as to swing freely so that the pivot point coincides approximately with the axis of the drive shaft. 23. Claim to 1, 2, 6,7, 10, 15, 16, 19, 20, 22 characterized in that a snow blower wheel is interchangeably attached to the side or central drive shaft. 24. Claim to 1 - 23 characterized in that in the hydraulic system of the carrier device, through which the hydraulic motor of the attachment is driven, a flow divider is installed between the pump and the valve block, which divides the amount conveyed by the pump into the amount for the Actuation of the hydraulic cylinders on the boom is required and the remaining amount that is available for driving the hydraulic motor on the attachment (6). 25. Claim to 1 - 10, 15, 17, 18, 21, 22 and 24, characterized in that a device is attached to the attachment, which conveys the milled material in the area of the cut joint or joints.

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