DK172286B1 - Earth Drum - Google Patents

Abstract

1. Ground roller, utilised as a follower roller behind a ground cultivating machine and/or chassis of a seed drill, including rubber tyres (9, 109, 209), which are rotatably disposed adjacent one another on a supporting frame (10, 11, 110, 210), characterised in that one or more supporting bodies (13, 22, 124, 136, 143, 146, 149, 216) are disposed in the interior of the rubber tyres (9, 109, 209) between the supporting frame and the region of the tread surface (129) of the tyre in order to support the tread surface (129).

Description

DK 172286 B1

The invention relates to a ground drum according to the preamble of claim 1.

Such a soil drum is known from the journal "Top Agrar", booklet 2, 1982, page 99. In addition, a similar drum is known to run after a tillage machine, from 5 US Patent No. 3,339,643.

This drum, which is intended for meadow drum, consists of several truck tires which are arranged side by side on a central support tube. In this document it is mentioned that the tires can even roll, and thus a certain cleaning effect can be achieved on the truck tires. This may even be the case when using the drum as a meadow drum for rolling on meadows.

However, if this drum is used for drilling soaps, possibly in tillage combinations behind soil tillage tools for tillage, this milling operation on the truck tires is not sufficient to achieve self-cleaning. In addition, there is a tendency for soil to get stuck between the individual tires and from here soil can move further inwards towards the central support pipe, so that after a short period of use of this drum in field areas, .g. behind tillage tools, the interior of the individual tire is filled very quickly with soil. This soil fills the entire void inside the tires so that the tires can no longer choke. Thus, no longer self-cleaning effect is achieved. In addition, the drum becomes too heavy for tillage, and if such a drum is used in tillage combinations, the tillage combination can no longer be lifted by the three-point hydraulics on the tractor carrying the tillage combination.

In addition, this known rubber drum does not lend itself to re-fortifying soil that has been cultivated, as the tires compress too much within the area of the tread.

DK 172286 B1 2

From German Publication No. 33 36 313, a combined implement combination consisting of a tillage machine and a trailing drum located behind the tillage machine is known. In this known appliance combination, several tiers are mounted in a row adjacent to one another on a common through shaft in front of the tillage machine, whereby the tire covers approximately the entire working width of the implement combination. Experiments have now shown that for seed preparation, work must be done with a very low air pressure in these air tires. As a result, it has now surprisingly been found that the ground that is stuck or the ground that has become stuck between adjacent tires presses the tires of the rims, so that after a short time of use of the tool combination 15, the soil penetrates in the interior of the air tires. In no time at all, the interior of the entire tire is filled with soil. This prevents rolling of the tires so that there is no longer any self-cleaning effect. Thereafter, an ever-growing earring will build up around the decks, and in addition, an extremely poor seedbed will emerge. If the seed is introduced into the soil in front of these tires, these tires take the top soil layer and partly even the seed seed up, so that the seed deposited in the soil is absorbed again. The seed deposited in the soil is thereby not sufficiently covered by soil, so that extremely unfavorable conditions for the seed germination process occur, in addition to the seed being eaten by the birds.

The object of the invention is to further develop the known soil drum with simple means so that it can compress the soil into a seed bed.

This is achieved according to the invention in that, in the interior of the rubber tires between the support frame and the area of the tire tread, one or more supporting rings are formed for circumferentially tearing the tread, and that the rubber tires are placed on the supporting frame at a distance from one another.

DK 172286 B1 3

By this measure, by simple means, a ground drum consisting of separate rubber tires is provided, by means of which a seed soil is allowed to press in a particularly advantageous manner, without the tires jumping off the rims as a result of soil that gets stuck, or that ground gets stuck between adjacent tires. The advantages of a relatively rigid drum with good drum action and a relatively soft drum which exhibit good rolling work are here combined in a particularly advantageous manner.

In another preferred embodiment of the invention, a fixed circumferential ring may be provided within the rubber tires having a slightly smaller outside diameter than the inner outside diameter of the rubber tire. This results in the fact that the rubber tire placed on a rim 15 while rolling over the ground rests on this ring, whereby the ring has a contour which at least corresponds at least to the rubber tire. The fixed circumferential ring located within the rubber tire constitutes the effective drum diameter. This ring restricts the tire deformation 20 within the tire support surface on the ground. Due to the rotation of the rubber tire, there is a constant change in the instantaneous support surface of the tire periphery, whereby the deformation of the tire within the area of the support surface is always removed again, whereby the tire performs a rolling operation. This constant rolling of the rubber tire produces a self-cleaning effect on the tire, so that soil adhering within the area of the tire support surface immediately springs from the tire again when the tire periphery leaves the area of the support surface. This provides a drum element which is formed only within the region of its supporting surface as a relatively rigid drum alloy. The constant deformation of the tire leads to continuous rolling work and thus to a constant tire self-cleaning. Hereby it is possible that the tire 35 is without air or is filled with very little air.

DK 172286 B1 4

In the application of a ring within a rubber tire, according to the invention, the rubber tires can be connected to the rims via fastening or clamping elements. The fastening or clamping elements ensure that the tire bead is pressed everywhere against the rim edge so that no soil can penetrate the inside of the rubber tire.

According to a further embodiment of the invention, the soil drum may be formed as a drill's driving frame, and the seed drill's metering means may be arranged to be driven by the soil drum. According to these measures, a soil drum integrated in the seed drill is provided with simple means which reattaches the soil loosened by the tillage machine, whereby the seed is placed in an optimum applied soil. In this way, the seed attains contact with the soil capillaries, and optimal growth conditions are obtained for the seed deposited in the soil. By means of the adjacent rubber tires, a clogging-free soil drum is obtained which, due to the rolling work of the tires, exhibits a self-cleaning effect, thereby avoiding the use of stripping means placed on the drum bodies. As a result of the seed drill's support on the soil drum, an extremely compact construction unit is obtained, which can run both as a solo machine with a packing action and also in combination with a tillage tool. If the seed drill mounted on a tire drum is operated in combination with a tillage machine, the compact construction of this machine causes a significant displacement of the center of gravity towards the tractor pulling the combination, which leads to a reduction of the lifting forces. needed to raise the Combi-30 nation. This reduces the need for lifting power from the tractor pulling the combination, allowing the use of tractors with less power. In addition, during clashes with stones, the entire machine is not lifted, as is the case with a rigid drum doctor. On the other hand, the tires in question remain compressed as the tires can individually fold back.

DK 172286 B1 5

According to a further embodiment of the invention, the soil drum may be arranged as a post-drum drum behind a tillage machine. This results in a tillage drum with a clogging-free after-roll drum which, due to the rolling action of the tires 5, exhibits a self-cleaning effect, thereby avoiding the use of stripping means on the periphery of the drum. The rolling of the tires ensures that there is no ground left on the drum's periphery, as it immediately becomes loose again. Since none of the irons is placed on the periphery of the drum, the rotation of the soil drum is not prevented by scrapers, so that the drum periphery can roll over the soil surface without any significant sliding, thereby restoring the soil surface processed by the tillage machine in a particularly advantageous way. and a fine-grained and smooth seedbed is obtained.

According to a further embodiment of the invention, the ground drum may be characterized in that the rubber tires are arranged on a through-going support tube having an outside diameter at least equal to approx. the inside diameter of the rubber tire 20, spacer rings disposed within the rubber tires, the inner diameter of which is at least approximately equal to the inside diameter of the rubber tires, and the support rings whose outer diameter is mounted smaller than the inner diameter within the rubber tires. diameter at the rubber tire tread.

As a result of these features, it is achieved that no soil can penetrate into the inner compartments of the rubber tires and that the rolls of the rubber, when rolling over the soil surface, are only compressed to a degree necessary for the self-cleaning of the drum. In addition, a reattachment is obtained by means of this rubber tire drum as the rubber tire treads during rolling across the earth surface support the support rings and thereby the soil is directly affected by reattachment forces from the soil drum. Preferably, these tires are in the form of radial tires with "soft" side walls and preferably used truck tires.

DK 172286 B1 6

In order that the support rings can be mounted and mounted in a simple manner in the rubber tires, according to the invention, the support rings arranged within the rubber tires can be composed of at least two, preferably three parts.

In order that the rubber tires can also roll satisfactorily during rolling over the ground surface and the rubber tires cannot be pressed too much in the direction of the drum axis, according to the invention there is a distance between the outer surface of the support rings and the inner surface of the rubber tires. at least one tenth, preferably 1/6 - 3/10 of the height of the rubber tire sidewall.

Particularly good sealing of the rubber tires so that no soil can penetrate the interior of the rubber tires is achieved by the fact that there is an annular ring between the 15 rubber tires placed next to each other on the support tube.

In addition, according to the invention, the support rings composed of several parts may be attached to spacer rings. This results in an extremely constructive simple placement of the support rings within the rubber tires.

In addition, according to the invention, the spacer rings may consist of two circular bent circular rods, which are connected to each other by a distance from each other via at least three tabs. This results in the exact location of the rubber tires on the carrier pipe and partly that the rubber tires are prevented from traveling on the carrier pipe. In addition, the spacer rings ensure that the rubber tires placed next to each other are pressed firmly against each other within the range of the spacer rings and their inner region so that no soil can penetrate the inner region of the individual rubber tire.

According to another embodiment of the invention, the parts of the support rings may be circular segment pieces, and on these segment pieces may be provided with inwardly extending tabs which DK 172286 B1 7 supports on the support tube and / or the support rings. This results in a very simple mounting of the support rings, and at the same time it ensures that the support rings are fixed precisely within the interior of the rubber tires.

5 In order to affix the rubber tires to the support drum of the soil drum and to seal them against each other and against the support tube, according to the invention, a tensioning device for clamping the rubber tires on the support tube can be arranged in the lateral direction at least on one end thereof.

Another embodiment of the ground roll according to the invention has the features of claim 25. Hereby the same advantages are obtained as in the above-mentioned embodiments except that instead of a spacer ring made of metal, a ring made of a thermoplastic material is used.

According to a further embodiment of the invention, at least two, preferably two, support rings may be arranged in each rubber tire.

The rubber tires are individually supported within the outer region, so that two strongly-bonded ground strips are formed which are produced by one rubber tire. Because the support rings are spaced apart and there is at least within their outer area a free circumferential clearance between the spacer rings, the middle region of the treads may make a rolling motion inwardly in this clearance between the two support rings. As the middle area of the tread reappears after rolling over the ground surface, a ridge effect occurs on the rubber tire tread, whereby the rubber tire tread cleans itself in a preferred and simple manner. Further, as a result of the location of the two support rings within the rubber tire, and that several rubber tires are placed side by side, it is further achieved that within the area of each rubber tire within the area of the support rings, strongly attached earth strips are formed. , which is fortified in such a way that the seed grain deposited in this soil strip provides optimal conditions to germinate and grow up. The soil strip, which originates from the middle part of the individual tread, and which is not too strongly compressed, will, due to the natural setting of the soil, settle over time, so that this area, due to the natural conditions, first achieves it optimally After a few weeks, the seed grains, which are deposited in the more heavily fortified areas within the area of the support rings, reach with their roots into the middle area, where it finds optimal growth conditions here as well. The area arising from the free space, which is between two adjacent decks and in practice and at best only poorly fortified, will after 15 some time have also become so strongly attached to the natural nature of the earth. set process, that after a long time here also the optimum degree of attachment and the optimal growth conditions for the seed sets.

Preferably, the support ring is located close to the inner wall of the rubber tire in question. This ensures that the support rings are spaced sufficiently spaced within the rubber tires, so that the strongly-reinforced, less-fortified and poorly-fastened ground strips of the invention can be formed, and that a rolling work of the roller is sufficiently achieved. individual rubber tires, whereby the middle part of the tread can be pressed firmly in between the support rings, so that a very strong rolling of the tread occurs during rolling over the ground and the ground is loosened, which preferably ensures a self-cleaning of the tires.

In order to be able to easily mount the support rings within the tires, according to the invention, the support rings can each consist of three composite parts. The parts of the support rings are then joined together within the tire by means of screw connections or welds.

DK 172286 B1 9

In order that the support rings do not damage the guraraid tires or that the rubber tires should only be insignificantly damaged, according to the invention, the spacer rings may have a rounded support surface on their outer side. The support members may consist either of molded metal sheets or of plastic molding parts.

In order to ensure a sufficient rolling effect of the rubber tire tread for self-cleaning of the rubber tire, according to the invention, the distance between the two support rings disposed within the rubber tire can be so large that the tread of the 10 tire in question can at least be pressed into the free space. in between these support rings.

For very wide rubber tires, it may be necessary or appropriate for more than two spacer rings to be disposed within the individual rubber tire, which have a circumferentially free space within their outer region. In this way, it is also ensured that, when conducting dense seeding on relatively wide rubber tires, more than two heavily compressed strips emerge from a rubber tire, in which case these strips lie at relatively small distances from each other. Furthermore, by means of the circumferential free spaces, it is ensured that the rubber tires can individually vault inwards in more than one place, so that a very strong rolling effect is also obtained here on the rubber tire tread for self-cleaning of the rubber tire.

In addition, according to the invention, a seed drill bit can be arranged behind the ground drum, these seeds are according to the invention arranged so that each seed drill is in extension of a support ring which is arranged in the interior of the individual rubber tire. As a result of this measure, the seed seed is obtained by means of the seed cuts in the heavily fortified areas, which in practice already have such a fortified soil condition which is optimal for germination and growth conditions.

On heavy soils, it may be advantageous if according to the invention cleaning teeth are placed on the frame of the soil drum or on the frame of the subsequent seed drill, and which protrude into each of them between two adjacent 5 rubber tires. Preferably, the cleaning teeth may be positioned approximately horizontally and spaced apart from the spacers between the rubber tires.

The invention is described in more detail below with reference to the drawing, in which: FIG. 1 is a front view of a soil drum according to the invention; FIG. 2 shows an embodiment of a rubber tire, whereby a fixed, circumferential ring is arranged in section within the rubber tire; FIG. Fig. 3 shows a soil drum according to the invention formed as a driving frame for a seed drill, shown in combination with a tillage tool, seen in operating condition; 4 is the one shown in FIG. 3, which is formed as a driving frame for a seed drill, seen in the upturned condition; FIG. 5 is a side view of a drum according to the invention, which is designed as a driving frame for a 20 seed drill located behind a tillage tool; FIG. 6 is a sectional view of a drum of the invention; FIG. 7 is a sectional view of an additional soil drum; FIG. 8 is a section through a portion of yet another ground drum; FIG. 9 shows the mounting of a support ring according to FIG. 8 in a rubber-25 tire; FIG. 10 is a side view of an additional soil drum, FIG. 11 shows the mounting of the outer ring of the support ring, FIG. 12 is a side view of a tool combination with a soil drum according to the invention; FIG. 13 is a section along line II-II of FIG. 12, showing the soil drum with built-in drill; FIG. 14 is a rear view of the ground drum and partly in section; FIG. Fig. 15 is a rear view of the ground drum and partly in section with stripping of the ground, shown in schematic view; 16 is a view of the strip-varying attachment by means of the soil drum according to the invention corresponding to FIG. 20 in schematic view, FIG. 17 is a side view of the support rings arranged within a rubber tire; and FIG. 18 is a sectional view taken along line VII-VII of FIG.

17.

The ground drum 1 comprises a support frame formed as a central support tube 2, which is pivotally mounted in a support frame 3. This support frame 3 comprises connecting elements 4 and 5 for the connection to a soil tillage machine. The connecting element 4 is located on a hanger 6 made of a pipe, which is arranged on the front of the ground drum 1. The connecting elements 5 are located on a pipe 7 which extends over the entire width of the ground drum and which are welded to parts of the support frame 3 on the ground. , seen in the direction of travel, rear side of the ground drum 1. The connecting elements 5 are each limited by two plates welded to the pipe 7. On the central carrier tube 2, rubber tires 9 are arranged over the entire working width of the ground drum 1 in such a way that they have a certain spacing. The rubber tires 9 are each mounted on a rim 10. The rims 10 are connected to the central support tube 2 by means of triangularly arranged struts 11. The rubber tires 9 arranged on the central support tube 2 can roll over a ground 12 during rolling. in such a way that 5 they clean themselves.

FIG. 2 shows one of the rubber tires 9 mounted on the central support tube 2. This rubber tire 9 is located on the rim 10 and the interior of the rubber tire 9 is filled with a foam 13 which consists of a foamy substance with air enclosures 14.

The foam 13 has a progressive spring characteristic. The rubber tire 9 is so filled with foam that the outer region 15 within the region of the tread 6 of the rubber tire 9 is relatively soft and the inner region 17 is fixed. The different strengths of the foam are obtained by means of air inclusions 14 of different sizes. The solid foam 13 of the inner region 17 ensures that the bead 18 of the tire 9 is always pressed against the rim 19 of the rim 10. The solid foam 13 within the inner region 17 thus provides a secure attachment of the rubber tire 9 to the rim 10 so that the rubber tire 9 cannot jump off rim 10.

20 The foam pulp 20 disposed within the outer region 15 at the tread 16 of the rubber tire 9 acts against the deformation of the tire 9 within its supporting surface 21 on the ground 12. This provides the outer region 15 at the tread 16 with an optimum drum effect. necessary rigidity, which however allows the rubber tire 9 to continually roll during rolling over the ground 12 in such a way that a preferred crumbling and pressing action is achieved during the seed preparation and partly while ensuring a preferred self-cleaning effect on the tire 9.

FIG. 3 shows a further rubber tire 9, where a fixed circumferential ring 22 is provided within the rubber tire 9, which has a slightly smaller outside diameter d than the inner outer diameter D. of the rubber tire 9. This ring 22 has a contour approximately similar to the rubber tire 9. contour. The rubber tire 9 is connected to the rim 10 via the fastening and clamping elements 23. Hereby the fastening and clamping elements 23 press the bead 18 of the tire 9 against the edge 19 of the rim 10, so that the tire 9 cannot break off. rim 10. While the rubber tire 59 rolls over the ground 12, the circumferential ring 22 limits the deformation of the rubber tire 9. The outer diameter d of the annular ring 22 thus constitutes the effective drum diameter of the individual rubber tire 9.

FIG. 4 and 5 show the soil drum 1, which is formed as a driving frame for a seed drill 24. The drill container 25 of the seed drill 24 is located substantially close above the soil drum 1. Close behind the soil drum 1 is secured by means of support arms 26 a cutting holder rail 27 on which, in two successive transverse rows, hinged seed shears 28 which deliver the seed dispensed from the seed 29 dosing elements 29 to the ground 12 are suspended to the ground 12. The seed 29 dosing elements 29 are driven by the ground drum 1 via a chain drive 30 and an infinitely adjustable regulator 31. By means of the three-point coupling elements 32 arranged on the shackle 6, the seed drill 24 placed on the ground drum 1 can be mounted on a tractor carrying the ground drum 1 and the drill machine 24 by means of this three-point lifter.

However, the seed drill 24 mounted on a soil drum 1 can also be used in combination with a tillage tool. The soil drum 1 integrated in the sowing machine can be connected to the tillage tool via carrier arms 33 and a coupling device 34. By means of the sequential placement of the tillage tool and the seed drill 24, a tillage combination 35 is obtained.

The machining combination 35 comprises e.g. a tillage tool formed as a rotary pusher 36, which is connected to the seed drill 24 by means of support arms 33 and a coupling device 34 formed as hydraulic pivot device 37 by hydraulic cylinder 38, the supporting arms 33 are attached to the connecting elements 5 which are arranged on the pipe 7 behind it. ground drum 1. The seed drill 24 is rotatable about the pipe 7 by means of the hydraulic pivot device 37, so that the seed cutters 28 can be swiveled up in the embodiment shown in FIG. 5 in which they are at a great distance from the ground surface 12.

The soil drum 1 can also be used as a clean after-drum behind a tillage apparatus, whereby it is also adapted to be easily connected to the soil tillage tool by means of the support arms 33.

The invention is not limited to the above-mentioned exemplary embodiments, but covers all drums or drum bodies which are suitable for attachment to soil or a ground surface and which fall within the scope of the invention.

FIG. 6 shows an agricultural implement combination consisting of a tractor-driven tillage machine 101 and a rear tillage machine 101, by means of three-point rods 102, ground drum 103 with seed drill 104. The soil drum 103 is thus formed as a run-down drum for the tiller and also tiller drill 20. 104. The seed drill 104 has seed cutters 105 and drill bars 106. The seed drill assembly 108 is driven by the ground drum 103 via an adjustable drive 107.

The ground drum 103 consists of side-by-side rubber rubber tire 109 which is mounted on the pivotally mounted support frame 110. The support frame 110 is formed as a support tube which is pivotally mounted on support arms 113 and 114 via a bearing 111 and a bearing pin 112. at the sides, whereby the support arm 114 is formed as a bearing housing for the drive 115 of the regulator 107.

30 On the carrier carrier 110, the rubber tires 109 are arranged side by side. The support tube 110 has an outside diameter A which corresponds approximately to the inner diameter of the rubber tire 109. As a result, the rubber tires 109 can be easily pushed on the support tube 110 from one side. On the right side of the support tube 110, an end 115 is provided by means of screws 116 forming a clamping device. On the other side 5 of the support tube 110, an end wall 117 is welded to the end surface of the support tube 110. The outer diameter of the end wall 117 is larger than the outside diameter A of the support tube, so that the protruding ring 118 can serve as abutment surface for a bead 119. The end ring 115 also has a larger outside diameter than the support tube 110, so that the protruding ring 120 of the end 117 serves as abutment surface. for the bead 119 of the rubber tire 109.

In the interior of the rubber tires 109 are spaced rings 121. These spacers 121 have an inner diameter at least approximately equal to the inside diameters of the rubber tire 109 and the outside diameter of the carrier tube 110. The spacer rings 121 consist of two circular curved rods. which are connected to one another by means of at least three tabs 122. On the tabs of the spacer rings 121, a further ring 124 is secured by means of screws 125 via further tabs 123. The support rings 124 are composed of three parts. Between the outer surface of the support rings 124 and the inside surface of the rubber tire 109, there is a distance C which corresponds approximately to 3/10 of the height H of the rubber tire sidewall 126. This makes it possible for the rubber tire 109 25 to roll over the ground surface 127, as shown in FIG. 7, can compress or roll, whereby the inner surface 128 of the rubber tire 129 can support the support ring 124 so that the rubber tire 109 does not fully compress during rolling over the ground surface 127 and satisfactory grounding is obtained. Between the individual rubber tires 109 there is everywhere an annular ring 130, which according to FIG. 7 consists of two round rods which are connected to each other via tabs 131. By means of a suitable width of the spacer rings 121 as well as the spacer rings 130, the tires are clamped by the screws 116 and the end rings 115 and the end wall 117 fixed on the clamping device. DK 172286 B1 16 the supporting pipe in the lateral direction.

The support rings 124 consist of circular curved segment pieces, and on these segment pieces the inwardly extending tabs 123 are positioned so that the support rings 124 can support the support tube 110 via the spacer rings 121.

The soil drum of FIG. 9 differs from the ground drum of FIG. 7 in that spacers 109 are disposed within the rubber tires 109 which have a greater width than the spacer rings 121 of FIG. 7. In addition, the tabs 133 connecting the spacer rings 132 are mutually formed. The tabs 133 are connected to each other via the tab 134 by means of screws 135. On the fig 134, segment pieces 136 are formed which form a support ring 137. In addition, a spacing ring 138 is provided between all the rubber tires 109 arranged next to each other. , which has a circular cross-section and which at the same time has a sealing function, thereby preventing the outside of the soil from penetrating into the interior of the rubber tires 109. The rubber tires 109 are thus clamped onto the support tube 110.

The soil drum of FIG. 10 has rubber tires 109 which are arranged 20 on the through carrier 110. On one end side of the carrier 110 an end wall 117 is arranged, while on the other end side of the carrier 110 an end 115 is provided by a clamping device formed by tightening screws 116.

Inside the rubber tires 109 are spaced rings 25 139 which are connected to each other by means of screws 142 and tabs 140 and 141. On the tabs 141 a support ring 137 consisting of segment pieces 136 formed of circular bent tubes is arranged. . On the support rings 137, the inner surface 138 of the rubber tire 109 can support 30 during rolling over the ground surface 127, thereby compressing the ground. The rubber tires 109 at the ground drum of FIG. 10 are arranged directly adjacent to each other and with their beads 119 directly opposite each other and due to the location of the spacer rings 139 within the inner region of the rubber tires 109 are pressed firmly against each other by means of the clamping device 116 via the end ring. 115 and the end wall 117 so that the rubber tires are clamped in the lateral direction of the support tube. This prevents soil from entering the interior of the rubber tires. As a result of the roll of rubber tires 109 during rolling over the ground surface 127, the rubber tires clean themselves.

In the rubber drum of FIG. 11, the rubber tires 109 are disposed on the support tube 110. In the interior of the rubber tires 109, spacer rings 121 with tabs 122 similar to those shown in FIG. 7. In addition, segment-shaped support elements 143 are provided in the interior of the rubber tires 109 by means of tabs 144, via which the support elements 143 are secured to the tabs 122 of the spacer rings 121 by means of screws 145.

In the soil drum of FIG. 13, the rubber tires 109 are arranged side by side on the through carrier tube 110. Between the adjacent rubber tires 109, spacer rings 130 are mounted on the carrier tube 110. In the interior of the rubber tires 109, a spacer ring 146 is provided which has a double T-shaped cross section. These spacer rings 146 have an inside diameter approximately equal to the outside diameter of the carrier tube 110 as well as the inside diameter of the rubber tire 109. The spacer ring 106 consists of a thermoplastic material which is deformable at a temperature above 25 ° C which is sufficiently rigid at normal operating temperatures. The inner surface 128 of the rubber tire 109 tread 129 during the rolling over the ground surface 127 can support on top of the spacer ring 146 and still roll sufficiently during the rolling over the ground surface 127 to allow a self-cleaning effect on the rubber tires 109. mounting or placing the spacer rings 146 in the interior of the rubber tires 109, the spacer rings 146 are heated to a temperature above 70 ° C so that they can be molded in accordance with FIG. 14, in which only the outer contour 147 of the spacer ring 146 is shown, so that the spacer rings 146 can be projected into the inner space of each rubber tire 109. After the application of a spacer ring 146 in the inner space of a rubber tire 109 is brought the spacer ring 146 back to its normal shape so that after cooling it has the desired circular shape. After cooling, the spacer ring 146 is sufficiently rigid so that it can absorb the forces acting upon it during the rolling of the rubber tire 109 over the ground surface 127, and thereby exercise its supporting function.

10 The soil drum of FIG. 15 has rubber tires 109 which are mounted on the carrier tube 110. Inside each rubber tire 109 is provided a support ring 148. This support ring 148 consists of an outer ring 149 and an inner ring 150. On the outer ring 149 are tabs 151. These tabs 151 can either be formed 15 as pipe sleeves or other sleeves which are welded to the outer ring. On the tabs 151, the inner ring 150 is attached. For this purpose, the inner ring 150 has bores within the region of the tabs 151, so that the inner ring can be screwed onto the tabs 151 and thus the outer ring 149 by means of screws 20 152. In addition, the outer ring is at the location shown by reference numeral 153. divided and arranged to be connected by means of a connecting element formed as a screw 154. The inner ring has an inner diameter approximately equal to the outside diameter of the carrier tube 110. The mounting 25 or the mounting of the support ring 148 within the tire 109 is as follows. First, the outer ring is split as it is split at site 153 and compressed as shown in FIG. 16 so that it can be inserted into the tire. Then the outer ring 149 is pushed back again, and by means of the screw 154 the two ends 155 and 156 of the outer ring are joined together. That is, parts of the outer ring must overlap. Then, the inner ring is inserted into the tire 109 and screwed to the tabs 151 by the screws 152. Then the tire with the support ring is placed on the support tube 110.

FIG. 17 shows an agricultural implement combination consisting of DK 172286 B1 19 a tractor-driven tillage machine 201 and a rear tillage machine 201 by means of three-point rods 202, ground drum 203 with seed drill 204 applied. Soil drum 203 is formed as a ground drill 5 as well as ground drum 5 driving frame for the seed drill 204. The drill 204 has seed drill 205 arranged in two successive transverse rows. The dosing means 207 of the seed drill 204 is driven from the ground drum 203 via the adjustable drive 206. The seed cutters 205 are pressed down against the ground by means of 10 cutting compression springs 208.

The ground drum 203 consists of the adjacent rubber tires 209 disposed on the pivotally supported support frame 210. The carrier stand 210 is formed as a support tube pivotally mounted on adjacent support arms 213 and 214 15 by means of bearings. 211 and bearing pin 212. The support arm 214 is formed as a bearing housing for the drive 215 of the control device 206.

On the through carrier 210, the rubber tires 209 are arranged side by side. The support tube 210 has an outside diameter 20 which is approximately equal to the inside diameter of the rubber tires 209. As a result, the rubber tires 209 can be easily inserted on the support tube 210 from one side. On one side of the support tube 210, an end is arranged by means of a screw device formed by screws. On the other side of the support tube 210, an end wall is welded to the end surface of the support tube. The outside diameter of the end wall is larger than the outside diameter of the support tube 210, so that the protruding ring of the end wall serves as the abutment surface for the bead on a tire.

In the interior of the rubber tires 209, two support rings 30 216 are spaced apart. The support rings 216 have an outer diameter smaller than the inner diameter of the tread of the rubber tire 209. The two support rings 216 are connected to each other by means of three spacers 217 which maintain them at a distance from one another. In each rubber tire 209, DK 172286 B1 20 is provided with two support rings 216 which are connected to each other by means of the spacers 217. The support rings 216 are spaced apart so that between the support rings 216 there is a free circumferential clearance 218 within 5 the radially outer region. The support rings are positioned close to the inner wall of the tire 209. The support rings 216 consist of three composite parts which are welded together at the places indicated by reference numerals 220 after installation within the tire. The support rings 216 have on their exterior side 221 a rounded support surface. The support rings 216 consist of shaped metal plate parts.

The distance A between the two support rings 216 located within the rubber tire 209 is so large that the middle part of the tread 222 of the tire 209 can at least be pressed slightly into the clearance space 218 between the two support rings 216.

Behind the ground drum 203, the seed blades 205 are arranged such that any seed 205, viewed in a direction opposite to the direction of travel, is in extension of a support ring 216 which is arranged in the interior of a rubber cover 209. In addition, cleaning teeth of the frame of the seed drill 204 are arranged. 223, which project into separate spaces 224 between two adjacent rubber tires 209. These cleaning teeth 223 are arranged approximately horizontally and are spaced apart from spacers 225 which are located between the adjacent rubber tires 209. By means of the spacers 225 and by means of the support rings 216, which are spaced apart by the spacers 217, it is ensured that the rubber tires 209 are placed at a perfectly determined and fixed distance relative to each other on the support tube 210. as a result of 30, that the rubber tires are pressed against each other by means of the two outer end walls 226 and 227, it is ensured that no soil can penetrate. nd in the interior of the rubber tires 209 as the inner space of the rubber tires is tightly enclosed as a result of the rubber tires being pressed against each other and against the spacers 225, 35 formed as rings.

DK 172286 B1 21

The intermediate rings 225 are of such a diameter and size that they engage the bead recess 228 of the rubber tires 209, thereby ensuring a secure attachment and a secure clamping of the rubber tires 209 on the support tube 210 in any case, even while driving in a curve. In order to secure even better the clamping of the rubber tires by means of the intermediate rings 225 and the spacer rings 216, the inner bead located on the inside opposite to the outer bead is cut with suitable means, so that on the inside of the tire 209 opposite the outer bead 229 a flat surface appears. This provides a secure clamping of the rubber tires 209, which may suitably be known and used truck tires.

The operation of the ground drum 203 with the spaced apart support rings 216 in the interior of the individual rubber tire 15 209 is as follows:

With the help of the advancing tiller 201, the soil is loosened and crumbled. The subsequent soil drum 203 compresses the soil with different strength within specific stripes. Within the region of the spacer rings 216 20, a strongly attached fixing area is characterized, which is characterized by a tight shading. Within this strip 230, the soil is so heavily compressed that the seed grains indicated by circles placed by means of the seed cutters 205 already have optimal germination and growth conditions, even within the first weeks before the soil has fully settled. because of the naturally occurring set process. Within the region 231 between the heavily secured areas 230 in the region between the two supports 216 within a rubber tire, a somewhat less heavily reinforced ground strip 231. Within the area 231, the tread of the rubber tire 209 is pressed into the gap 218 between the support rings 216. that the area in question of the tread of the rubber tire 209 has rolled over the ground, this middle region which during the rolling over the ground surface is pressed into the gap 218 between the support rings 216,

Claims (26)

1. A ground drum, used as a drum running behind a tillage machine, and / or a drill for a seed drill, which has a non-pressurized rubber tire (9, 109, 209) which is rotatably mounted on one another carrier (10, 11, 110, 210) and open thereto, characterized in that one or more of the tire (129) is disposed in the interior of the rubber tires (9, 109, 209) between the carrier frame and the area of the tire tread (129). circumferential rings provide supporting members (22, 124, 136, 146, 149, 216) for stiffening the tread (129) and the rubber tires are spaced apart on the support frame. A ground drum according to claim 1, characterized in that a fixed circular ring (22) having a slightly smaller outer diameter (d) than the inner diameter of the rubber tire (9) is arranged as a supporting body within the rubber tires (9). D). Ground drum according to claim 1, characterized in that the ring (22) has a contour which at least approximately 10 corresponds to the contour of the rubber tire. Ground drum according to one of claims 1-3, characterized in that the rubber tires (9) are mounted on rims (10). Ground drum according to claim 4, characterized in that the rubber tires (9) are connected to the rims (10) via fastening or clamping elements (23). Ground drum according to claim 1, characterized in that the rubber tires (109) are arranged on a through-going support tube (110) having an outside diameter (A) at least equal to approx. the inner diameter (B) of the rubber tire (109), that spacers (121, 132) are provided within the rubber tires (109), the inside diameter of which is at least approximately equal to the inside diameter (B) of the rubber tires (109) and that within the rubber tires (109) are provided support rings whose outer diameter in the mounted position is less than the internal diameter at the tread of the rubber tires (109). Earth drum according to claim 6, characterized in that support rings (124, 136) are arranged within the rubber tires (109), which are at least composed of two, preferably three parts. Earth drum according to one of claims 2-7, characterized in that there is a distance (C) between the outer surface of the support rings (124, 136) and the inner surface (128) of the rubber tire (109). at least one tenth, preferably 1 / 6-3 / 10, of the height (H) of the rubber tire sidewall (26). Earth drum according to one of claims 6-8, characterized in that a circumferential ring (130, 138) is arranged between the rubber tires (109) located adjacent to one another on the support tube (110). Earth drum according to one of claims 6-9, characterized in that the support rings (124, 136) are composed of several parts on the spacer rings (121, 132). Earth drum according to one of claims 7-10, characterized in that the parts of the support rings are formed as circular segment pieces, on which are mounted inwardly projecting tabs which support themselves on the support tube or spacer rings. Ground drum according to one of claims 6 to 11, characterized in that a clamping device 20 (116) is provided at least one end side of the support tube (110) for clamping the rubber tires on the support pipe in the side host direction. Ground drum, according to one of claims 1 to 12, characterized in that the rubber tires (109) are arranged on a continuous support tube having an outside diameter of at least 25 corresponding to the inside diameter of the rubber tires and that within The rubber tires (109) are provided with at least one support ring (146) which consists of a thermoplastic material which can be deformed at a temperature above at least 70 ° C and which is sufficiently stiff at normal operating temperatures. Earth drum according to claim 13, characterized in that the individual support ring (146) has a double T-shaped cross section. Earth drum according to one of claims 6 to 14, characterized in that the support ring (146) is at least divided in one place and has inwardly extending tabs and that the tabs (151) are adapted to be connected to a ring. (150) having an inside diameter approximately equal to the outside diameter of the support tube. Ground drum according to one of claims 1 to 15, characterized in that at least 10 supporting rings (216) are arranged within each rubber tire (209). Ground drum according to claim 16, characterized in that the support rings (216) are spaced apart and that between the support rings (216), at least within their outer area, a free circumferential clearance 15 (218) is provided. Ground drum according to claims 16 and 17, characterized in that the support rings (216) are arranged close to the inner wall (219) of the rubber tire (209). Earth drum according to one of claims 16-18, characterized in that the spacer rings (216) each consist of three composite parts. Earth drum according to one of claims 16-19, characterized in that the support rings (216) have a rounded support surface on their outer side. Earth drum according to one of Claims 1 to 20, characterized in that the support members (216) consist of molded metal plate or plastic molding parts. A ground drum according to one of claims 16-21, characterized in that the distance between the two support rings (206) arranged within the rubber tires (209) disposed within the individual DK 172286 B1 26 is so large that the tire can be pressed into at least slightly the free space (218) between these support rings (216). Ground drum according to one of claims 16-22, characterized in that more than two support rings are provided within each rubber tire (209) which have a circumferential clearance within their outer area. A soil drum according to any one of claims 2-23, wherein a seed drill's cutting insert is arranged behind the soil drum, characterized in that there is one seed drill (205) in extension of each support ring (216) arranged in the interior of the gum mid-tacks (209). A soil drum according to any one of claims 1-24, characterized in that, on the frame of the soil drum (203) or on the frame of the seed drill (203) placed behind it, cleaning teeth (223) are arranged which extend into each of their spaces (224) between side-by-side rubber tires (209). 25 Patent claims. Earth drum according to claim 25, characterized in that the cleaning teeth (223) are arranged approximately horizontally and 20 are at a distance from the spacers (225) between the rubber tires.