专利摘要:
BACKGROUND OF THE INVENTION 1. Field of the Invention The invention relates to a drum ring (1) for an agricultural tool for compacting the soil, with stones being hit pressed into the ground, which ring (1) comprises a hub portion (12) with a central hole (15) for receiving a shaft (9). ), a rim portion (13) with an outer surface (14) for packing the ground, a plurality of spokes (2) each having a body (3) connecting the hub portion (12) and the rim portion (13) wherein the body (3) towards the rim portion (13) is branched in a plurality of arms (4) connecting the body (3) to an inner surface (5) of the rim portion (13). The invention also relates to a field drum (7) comprising a set (8) of drum rings (1) as indicated above, wherein the drum rings (1) are rotatably mounted about a common central shaft (9) mounted in a frame (11) of the field drum (7).
公开号:DK201500157U1
申请号:DK201500157U
申请日:2015-12-17
公开日:2016-01-08
发明作者:Nathany Amit
申请人:Dal Bo As;
IPC主号:
专利说明:

An agricultural roller ring and a land packer comprising a set of such agricul¬tural roller rings
Field of the invention
The invention relates to an agricultural roller ring for packing the soil while pressingencountered stones in the soil, which ring comprises a hub part with a central hole forreceiving a shaft, a rim part with an outer surface for packing the soil, a plurality ofspokes, each spoke having a body connecting the hub part and the rim part. Also, theinvention relates to a land packer.
Background of the invention
Typically, a plurality of roller rings sits on a shaft of a land packer driving on a field.A roller ring such as the one shown in FIG.l is used for packing the soil while press¬ing encountered stones in the soil, thus avoiding that stones get into, e.g., a harvesterwhen the latter is in operation. Basically, when a stone hits the ring, the ring drives onit and pushes it in the soil. However, such a roller ring has a short lifetime as the at¬tachment points of the spokes at the ring tend to crack due to the frequency of the im¬pacts with the stones. In order to make the ring more durable, reinforcements may beapplied at the attachment points; nevertheless, this implies an increased weight andmanufacturing cost for the whole construction.
Hence, there is a need in the technical field of agricultural roller rings and land packersof overcoming the abovementioned drawbacks of the state-of-the-art solutions.
Aspects of the invention
The first aspect of the invention is to provide an improvement to the state-of-the-art.The second aspect of the invention is to solve the abovementioned drawbacks of theprior art, i.e., that of providing an agricultural roller ring that is stronger and therebyhas a longer lifetime than a conventional roller ring (ref. FIG.l) and a reinforced ver¬sion of a conventional roller ring. At the same time, the aim of the invention is to pro¬vide a roller ring that is lighter and thereby less costly to manufacture than a reinforcedversion of a conventional roller ring.
Description of the invention
The aforementioned aspects of the invention are achieved by an agricultural roller ringas described in the preamble of claim 1, wherein the body, in a direction towards therim part, is branched into a plurality of arms connecting the body to an inner surface ofthe rim part.
Herein, a spoke is defined as an elongated element extending from the center of theroller ring (i.e., the hub where the shaft of a land packer is mounted), connecting thecenter of the roller ring with an inner surface of the roller ring.
The invention has the advantage that the impact of the hit of a stone on the roller ringis distributed on the arms of a spoke. As a consequence, the roller ring of the inventionis around 5-7 times stronger than a conventional roller ring and around 3 times strong¬er than a reinforced version of a conventional roller ring. At the same time, the rollerring of the invention is around 3 kg lighter than a reinforced version of a conventionalroller ring. The above assessments have been made comparing roller rings having thesame diameter.
In an embodiment of the invention, the body is branched into two arms. In anotherembodiment of the invention, each spoke is Y-shaped. Nevertheless, the two arms ofthe spoke may form an arch instead of extending in a diverging, straight manner fromthe body of the spoke. These embodiments have the advantage that the number ofarms is minimized, thus minimizing the complexity and the cost of manufacturing theroller ring while still achieving the abovementioned technical effects in terms ofstrength and weight.
In an embodiment of the invention, each of the two arms is attached to the inner sur¬face of the ring at an attachment point, wherein an angle between the two attachmentpoints ranges from 23 degrees to 28 degrees (e.g., 27 degrees in case of 0 500 and 24degrees in case of 0 620). Correspondingly, the distance between the two attachmentpoints ranges between 80 mm to 120 mm (e.g., 96 mm in case of 0 500 and 117 mmin case of 0 620). Advantageously, said angle and said distance between the two at¬tachment points increase with the diameter of the ring but, at the same time, are nar¬ row enough to avoid cracks at the attachment points. This embodiment has the ad¬vantage that each spoke has a significantly stronger resistance to cracking.
In an embodiment of the invention, the number of spokes ranges from 2 to 10 spokes.Advantageously, the number of spokes increases with the diameter of the ring (e.g., 6spokes in case of 0 500 and 8 spokes in case of 0 620). This embodiment has the ad¬vantage that the same strength is achieved regardless the diameter of the ring.
Also, the aforementioned aspects of the invention are achieved by a land packer com¬prising a set of agricultural roller rings (i.e., at least one set with at least two rollerrings) according to any of the preceding embodiments, wherein the agricultural rollerrings are mounted rotatably about a common central shaft mounted on a frame of theland packer.
Note that all the aforementioned advantages of the agricultural roller ring are also metby the land packer.
Hereafter, the invention will be described in connection with drawings illustratingnon-limiting examples of agricultural roller rings and land packers.
Brief description of the drawings FIG.l: PRIOR ART.
FIG.2: A roller ring with Y-shaped spokes.
FIG.3: A land packer with a plurality of sets of roller rings according to the invention.Notations a: angle between two attachment points of the same spoke,c: center of the roller ring.
d: distance between two attachment points of the same spoke.
D: diameter of the roller ring.
1: roller ring.
2: spoke.
3: body of a spoke.
4: arm of a spoke.
5: inner surface of the rim part.
6: attachment point.
7: land packer.
8: set of roller rings.
9: shaft.
10: bracket.
11: frame.
12: hub part.
13: rim part.
14: outer surface of the rim part.
15: central hole of the hub part.
Preferred embodiments of the invention FIG. 1 shows an agricultural roller ring 1 according to the prior art. The roller ring 1comprises: a hub part 12 with a central hole 15 for receiving a shaft 9 (not shown inFIG.l); a rim part 13 with an outer surface 14 for packing the soil; and four spokes 2,each spoke 2 having a body 3 connecting the hub part 12 and the rim part 13 at an at¬tachment point 6 at an inner surface 5 of the rim part 13.
FIG.2 shows an agricultural roller ring 1 according to the invention. The roller ring 1comprises a hub part 12 with a central hole 15 for receiving a shaft 9 (ref. FIG.3), arim part 13 with an outer surface 14 for packing the soil and eight spokes 2. Eachspoke 2 is Y-shaped; in fact, each spoke 2 has a body 3 connecting the hub part 12 andthe rim part 13, wherein the body 3, in a direction towards the rim part 13, is branchedinto a plurality of arms 4 connecting the body 3 to an inner surface 5 of the rim part13. Each of the two arms 4 is attached to the inner surface 5 of the ring 1 at an attach¬ment point 6, wherein the angle a and the distance d between the two attachmentpoints 6 are respectively 24 degrees and 117 mm.
FIG.3 shows a land packer 7 comprising a plurality of sets 8 of agricultural roller rings1 as described above, wherein the roller rings 1 in each set 8 are mounted rotatablyabout a common central shaft 9 mounted on a bracket 10 attached to a frame 11 of theland packer 7. Advantageously, the bracket 10 may also be integral with the frame 11.
权利要求:
Claims (6)
[1] 1. An agricultural roller ring (1) for packing the soil while pressing encountered stonesin the soil, which ring (1) comprises a hub part (12) with a central hole (15) for receiv¬ing a shaft (9), a rim part (13) with an outer surface (14) for packing the soil whilepressing encountered stones in the soil, a plurality of spokes (2), each spoke (2) havinga body (3) connecting the hub part (12) and the rim part (13), characterized in thatthe body (3), in a direction towards the rim part (13), is branched into a plurality ofarms (4) connecting the body (3) to an inner surface (5) of the rim part (13).
[2] 2. An agricultural roller ring (1) according to claim 1, characterized in that the body(3) is branched into two arms (4).
[3] 3. An agricultural roller ring (1) according to claim 1 or claim 2, characterized inthat each spoke (2) is Y-shaped.
[4] 4. An agricultural roller ring (1) according to claim 2 or 3, characterized in that eachof the two arms (4) is attached to the inner surface (5) of the rim part at an attachmentpoint (6), wherein an angle (a) between the two attachment points (6) ranges from 23degrees to 28 degrees.
[5] 5. An agricultural roller ring (1) according to any of the preceding claims, character¬ized in that the number of spokes (2) ranges from 2 to 10 spokes (2).
[6] 6. A land packer (7), characterized in that said land packer (7) comprises a set (8) ofagricultural roller rings (1) according to any of the preceding claims, wherein the agri¬cultural roller rings (1) are mounted rotatably about a common central shaft (9)mounted on a frame (11) of the land packer (7).
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DK3113596T3|2021-08-23|
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DE212014000119U1|2016-01-21|
DK177903B1|2014-12-01|
DK201500157Y3|2016-01-22|
引用文献:
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SU127492A1|1959-09-24|1959-11-30|П.О. Зинчук|Ringed roller|
DE2439595B2|1974-08-17|1980-05-29|Johannes Rau Ohg, 7315 Weilheim|Star disc of star rollers for agricultural implements|
FR2547696B1|1983-06-23|1986-06-13|Gourdin Souplex|DISC FOR AGRICULTURAL WORKS AND CRUSHER-CRUSHER PROVIDED WITH A PLURALITY OF SUCH DISCS|
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DE102010016873A1|2010-05-11|2011-11-17|Amazonen-Werke H. Dreyer Gmbh & Co. Kg|Agricultural device for solidifying the soil|
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CN102888737A|2011-07-22|2013-01-23|苏州三星电子有限公司|Belt pulley for drum washing machine|
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DE202013009670U1|2013-10-31|2015-02-03|Alois Pöttinger Maschinenfabrik Ges.m.b.H.|Agricultural soil roller|RU192368U1|2019-06-10|2019-09-13|Акционерное общество "Алтайский завод сельскохозяйственного машиностроения"|Tillage trailer|
法律状态:
优先权:
申请号 | 申请日 | 专利标题
DK201470102|2014-03-04|
DK201470102A|DK177903B1|2014-03-04|2014-03-04|An agricultural roller ring and a land packer comprising such rings|
DK2014050326|2014-10-13|
PCT/DK2014/050326|WO2015131901A1|2014-03-04|2014-10-13|An agricultural roller ring and a land packer comprising a set of such agricultural roller rings|
DK201500157U|DK201500157Y3|2014-03-04|2015-12-17|Drum for an agricultural implement as well as field drum comprising a set of such drum rings|
DK201500157|2015-12-17|DK201500157U| DK201500157Y3|2014-03-04|2015-12-17|Drum for an agricultural implement as well as field drum comprising a set of such drum rings|
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