• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    The invention relates to a soil cultivation tool such as a cultivator tip (1) or ploughshare, comprising a base body (2) with a cutting region (3) in which at least one hard metal body (4) is arranged, and a sliding region (5) adjoining the cutting region (3) ), in which a plurality of further hard metal body (6) in recesses (8) of the base body (2) are arranged. According to the invention it is provided that at least a part of the further hard metal body (6) in the recesses (8) is attached inclined to a surface (15) of the sliding region (5). As a result, an improved durability of the further hard metal body (6) on the base body (2) can be achieved.
    公开号:AT515782A4
    申请号:T50553/2014
    申请日:2014-08-07
    公开日:2015-12-15
    发明作者:Walter Ing Bärnthaler；Hannes Ing Burböck
    申请人:Boehlerit Gmbh & Co Kg；
    IPC主号:
    专利说明:

    Tillage tool
    The invention relates to a tilling tool such as a cultivator tip or plow blade, comprising a base body with a cutting region in which at least one cemented carbide body is arranged, and a sliding region adjoining the cutting region, in which several further cemented carbide bodies are arranged in recesses of the base body.
    Plows are well-known tillage implements that are required in agriculture for the preparation of the soil. Plows of conventional design comprise one or more plowshares that pierce the soil and over which excavated soil is led to a subsequent mouldboard that turns the earth.
    When piercing and lifting off the soil, relatively high loads act on individual plowshares. Although the plowshares are usually made of a steel, but the loads are so high that even steel can wear relatively quickly. As a result, the plowshares are changed frequently. This reduces productivity, since the replacement times are taken into account.
    In the prior art, attempts have been made to overcome the problem of poor wear resistance of the steel base bodies by cemented carbide inserts. Although carbide is many times more expensive than steel, it is also much more resistant to wear. Since not the entire body is made of a hard metal, but only inserts for high-stress areas, on the one hand, the additional costs incurred should be optimizable and on the other hand, a longer service life, so that the additional costs ultimately pay off.
    From DE 20 2010 017 959 U1 a ploughshare has become known with a basic body which is equipped with a plurality of hard material elements. At a lower end of the flight flock, which first pierces the soil, one or more bodies of hard material are provided. These bodies are cutting active and comprise with a paragraph bottom end of the body. Furthermore, in a region adjoining an upper end, further hard material elements can be provided which terminate flush with a surface of the main body.
    Although prior art attempts have been made to make highly stressed spots on the bodies of plowshares more resistant to abrasive wear by equipping them with wear resistant components, problems also arise. The durable components did not wear, however, it has been found that the adjacent areas of the base are at least stressed so much that there is a so-called washout in these areas, so that ultimately the components no longer have a hold and disengage from the base. Also in this case it is necessary to change the ploughshare. In other words, the components, such as hard-material components according to DE 20 2010 017 959 U1, do not wear out as such, but the base body in the surrounding areas, so that the resistant components dissolve. As long as this is the case, the potential of the abrasively resistant components can not be exploited because they are comparatively expensive. Other tillage tools such as cultivator tips have similar problems as plowshares.
    The object of the invention is to provide a tillage tool of the type mentioned, in which hold the other hard metal body when loaded in use longer on the body.
    This object is achieved if, in a soil working tool of the type mentioned in the introduction, at least part of the further hard metal body is fastened in the depressions inclined to a surface of the sliding region.
    By inventively provided inclined attachment of the other hard body relative to the surface of the sliding portion can be targeted in the distribution of the use of the soil working tool, for. As a ploughshare or Grubberspitze, acting forces are intervened. The intended inclination of the further cemented carbide body enables optimum flow of soil force along the soil working tool so that leaching of the cemented carbide bodies is retarded and the cemented carbide bodies are economically retained longer on the body.
    It is particularly preferred in this regard that a surface of the inclined-attached further cemented carbide bodies, viewed in the flow direction, lies lower at a front end than at a rear end. The soil then strikes obliquely positioned carbide bodies and is slightly raised by them in the direction of flow, so that subsequent areas have a lesser force, which proves to be favorable, in particular for the base body, and thus also delays leaching of downstream cemented carbide bodies.
    The inclination is preferably such that the front end of the inclined attached further hard metal body is set back towards the surface of the sliding portion. It can be provided in particular that the rear end of the inclined attached further cemented carbide body lies approximately at the height of the surface of the sliding region. This ensures that the soil sliding over the cemented carbide body always lifts slightly upwards from the latter and thus the following area of the body is preserved.
    It is particularly preferred that viewed in the direction of flow, the rear end of a tilted further cemented carbide body is less displaced back to the surface of the sliding region than a front end of a subsequent tilted further cemented carbide body. Thereby, the effects described above can be optimized.
    The depressions are expediently flat, so that they are easy to produce. The recesses may be formed with an angle of inclination of 2 ° to 20 °, in particular 3 ° to 10 °, to an imaginary extension of the surface of the sliding region. These angles are usually sufficient to achieve the desired effects. Smaller angles than 3 °, in particular 2 °, are no longer preferred with regard to possible washouts. Greater angles than 10 °, in particular 20 °, lead to a very irregular surface for the impinging earth, which makes it difficult to control the flow behavior and thus the stresses on the base body and carbide body in a targeted manner.
    It can also be provided that the inclined attached further hard metal body are attached sloping down to an outside. Although an inclination relative to the direction of flow is generally preferred, the forces can also be selectively affected by a sideways attachment. It is also possible that the carbide bodies are inclined both in the flow direction and to the side.
    An opening for receiving a fastening means may be provided in the base body, wherein a further cemented carbide body is arranged in the direction of flow just in front of the opening. The cemented carbide body is again disposed in a recess and may also be inclined relative to the direction of flow and / or to an outside. This further carbide body has the purpose of preventing leaching in the recording. In fact, it has been found that even in this area, which is subject to a moderate load, leaching can be a problem, in this case in relation to the retention by the fastener. If the pick-up is gradually washed out during use, ultimately the fastening means and thus the entire tool is released from the working equipment, for example a ploughshare from the plow. Even such a situation leads to undesirable maintenance. This can be prevented if a corresponding further hard metal body is arranged just before the opening.
    The main body is usually formed from a steel.
    The other hard metal body, which are particularly resistant to wear, are designed to minimize a material cost with a maximum thickness of 2 mm, preferably at most 1.5 mm.
    The depressions are advantageously designed around. The wells can then simply create by drilling in the body. This provides great advantages over other geometries for efficient production.
    In particular, in this case, it is expedient that the further hard metal body are formed as round platelets.
    The further cemented carbide bodies may be attached to the basic body in a material-like manner, these being preferably soldered to the basic body.
    Further features, advantages and effects of the invention will become apparent from the following illustrated embodiments. In the drawings, which are referred to, show:
    Fig. 1 is a partially cut cultivator tip;
    2 shows a list of different variants of a cultivator tip;
    3 shows a section for the variant c) according to FIG. 2 along the line III-II in FIG. 2;
    Fig. 4 is a section along the line IV-IV in Fig. 3;
    5 shows a section along the line V-V in Fig. 3rd
    A tilling tool according to the invention is shown in FIG. 1, in particular a partially cut cultivator tip 1 according to the invention. The cultivator tip 1 comprises a base body 2 which extends from a lower end 12 to an upper end 13. The basic body 2 consists of a steel. The basic body 2 is usually formed in one piece. Towards the upper end 13, the base body 2 has an opening 14 for a fastening means. If necessary, the cultivator tip 1 can be removed via this opening 14 and exchanged for a new cultivator tip 1.
    In the front region of the cultivator tip 1 according to FIG. 1, a cutting region 3 is formed, in which a cemented carbide body 4 is fastened. In this cutting region 3, the cultivator tip 1 is engaged in a soil when the cultivator tip 1 is in use. The hard metal body 4 can be attached somewhat protruding, so that the hard metal body 4 serves as a cutting edge. The hard metal body 4 is designed as a rectangular plate which extends in the region of the lower end 13 over the entire width of the cultivator tip 1. Usually, the hard metal body 4 has a thickness of less than 4 mm, in particular less than 3 mm.
    A sliding region 5 adjoins the cutting region 3 with the hard metal body 4 by further cemented carbide bodies 6 being fastened. According to FIG. 1, three further hard metal bodies 6 in the sliding area 5 adjoin the hard metal body 4 in the cutting area 3.
    In these areas, there is a high level of abrasive wear per se, which should be taken into account by the use of the further hard metal body 6. The further hard metal body 6 can be arranged in various forms, as can be seen for some examples in Fig. 2. The arrangement of individual further carbide body 6 takes place in such a way that an expected wear is optimally counteracted. For the variant c) according to FIG. 2, the arrangement of the further cemented carbide bodies 6 is shown in FIGS. 3 to 5. As can be seen in cross section, the further hard metal body 6 are arranged in individual recesses 8. The recesses 8 are formed with a shape corresponding to those of the other hard metal bodies 6. The depressions 8, as well as the further hard metal bodies 6, are preferably of circular design. As a result, the recesses 8 can be incorporated in a very simple way by drilling in the base body 2. In particular, other forms would lead to a considerable amount of work for the production of the recesses 8 in the case of a large number of further hard metal bodies 6. The recesses 8 are flat, so that the further hard metal body 6, which are formed as a rule as corresponding platelets, arranged in these and can be attached cohesively, in particular by soldering. Further, the recesses 8 are formed so that their base surface is inclined to a surface 15 of the sliding portion 5. This inclination may be such as can be seen in Fig. 3 that the bottom surface of the recesses 8 viewed in the direction of flow R is at an acute angle with the surface 15b. whose imaginary extension forms in the region of the depressions 8. This automatically follows that also the flat further hard metal body 6 or their surfaces 7 have a corresponding inclination relative to the surface 15. According to FIG. 3, this inclination for the further visible cemented carbide bodies 6 is formed in such a way that the inclination in the flow direction R increases. Furthermore, the further hard metal bodies 6 are arranged in the depressions 8 or the depressions 8 are formed correspondingly such that a front end 9 of a further hard metal body 6 in the flow direction R is set back more strongly to the surface 15. It can be provided at the same time as shown in FIG. 3 that a rear end 10 of the further hard metal body 6 terminates approximately flush with the surface 15. In addition, in each case at a rear end 10, the soil is lifted over intermediate regions of the base body 2, before it in turn strikes another cemented carbide body 6. As a result, the base body 2 is spared in the region between the other hard metal bodies 6, which is in principle also highly loaded, so that leaching is significantly reduced. The soldered further carbide body 6 remain longer functional on the main body 2.
    It will be further understood from FIG. 4 that the further cemented carbide bodies 6 may also be attached inclined to an outside 11. The individual positioning of the further cemented carbide body 6, also in the position sloping laterally to the outside 11, depends on the respective conditions of use and is optimized in such a way that leaching as far as possible is avoided. In line with FIG. 5, in accordance with FIG. 5, a further carbide body 6 arranged centrally in the flow direction R and arranged centrally along the cultivator tip 1 can only be inclined in the flow direction R. Several other hard metal body 6 and their in the flow direction R and / or the outside 11-directed positioning thus allow to distribute the forces caused by the soil optimally on the other hard metal body 6 and to protect the body 2 in the area between them, so that it or only in reduced Extent to washouts comes.
    In the other variants a), b), d) and e) according to FIG. 2, the arrangement of the further carbide bodies 6 is analogous. According to variant a) in FIG. 2, the further cemented carbide bodies 6 running along a central line of the cultivator tip 1 are arranged in the flow direction R in such a way that an inclination becomes stronger in each case. The same applies to the other variants, wherein a lateral inclination can be provided according to FIG. 4, when viewed in the direction of flow R, a plurality of further hard metal bodies 6 are positioned at the same height.
    It may also be important that an even further hard metal body 6 is arranged in front of the opening 14, which can be seen in FIG. 1. This may also be arranged inclined if necessary. This further cemented carbide body 6 serves to avoid leaching in the region of the opening 14 which receives a fastening means. It would be unfavorable if, in the cutting area 3 and in the subsequent sliding area 5, the abrasion resistant elements could be held in constant position due to the geometry encountered, but a fastener passed through the opening 14 would be released due to leaching.
    By the mentioned further hard metal body 6, which is arranged relatively close to the opening 14, leaching in this area can also be avoided.
    The inventive concept is set out above for a cultivator tip 1, but can also be applied analogously to other tillage tools, in particular a ploughshare or other soil-piercing tools.
    权利要求:
    Claims (14)
    [1]
    1. Soil cultivation tool such as a cultivator tip (1) or a ploughshare, comprising a base body (2) with a cutting region (3) in which at least one hard metal body (4) is arranged, and a subsequent to the cutting region (3) sliding region (5) in which a plurality of further cemented carbide bodies (6) are arranged in depressions (8) of the base body (2), characterized in that at least part of the further cemented carbide bodies (6) are inclined in the recesses (8) to a surface (15) of the sliding region (5). is attached.
    [2]
    A tilling tool according to claim 1, characterized in that a surface (7) of the further cemented cemented carbide body (6) inclined in the direction of flow (R) is lower at a front end (9) than at a rear end (10).
    [3]
    Soil cultivation tool according to claim 1 or 2, characterized in that the front end (9) of the further inclined cemented carbide body (6) is set back towards the surface (15) of the sliding area (5).
    [4]
    A soil working tool according to claim 3, characterized in that the rear end (10) of the further inclined carbide body (6) is approximately at the level of the surface (15) of the sliding portion (5).
    [5]
    Soil cultivation tool according to one of claims 1 to 4, characterized in that viewed in the direction of flow (R) the rear end (10) of a tilted further cemented carbide body (6) less to the surface (15) of the sliding portion (5) is set back than a front end a subsequent inclined attached further carbide body (6).
    [6]
    6. Soil cultivation tool according to one of claims 1 to 5, characterized in that the recesses (7) are flat.
    [7]
    Soil cultivation tool according to claim 6, characterized in that the recesses (7) are formed with an inclination angle of 2 ° to 20 °, in particular 3 ° to 10 °, to an imaginary extension of the surface (15) of the sliding region (5).
    [8]
    Soil cultivation tool according to one of claims 1 to 7, characterized in that the further inclined inclined further cemented carbide bodies (6) are mounted sloping towards an outside (11).
    [9]
    Soil cultivation tool according to one of claims 1 to 8, characterized in that an opening (14) is provided for receiving a fastening means, wherein in the flow direction (R) just before the opening (14) another hard metal body (6) is arranged.
    [10]
    10. Soil cultivation tool according to one of claims 1 to 9, characterized in that the base body (2) is formed of a steel.
    [11]
    11. Soil cultivation tool according to one of claims 1 to 10, characterized in that the further hard metal body (6) are formed with a maximum thickness of 2mm, preferably at most 1.5 mm.
    [12]
    12. Soil cultivation tool according to one of claims 1 to 11, characterized in that the recesses (7) are round.
    [13]
    13. Soil cultivation tool according to one of claims 1 to 12, characterized in that the further hard metal body (6) are formed as round platelets.
    [14]
    14. Soil cultivation tool according to one of claims 1 to 13, characterized in that the further hard metal body (6) are soldered to the base body (2).
    类似技术:
    公开号 | 公开日 | 专利标题
    DE102009029894B4|2019-03-21|Tillage tool
    EP2591648B1|2018-03-21|Cutting and/or mixing tool, in particular share, for an agricultural device, in particular for a soil cultivation device
    DE102011102053B4|2015-07-30|crowd
    EP2995180B1|2017-07-12|Soil working tool
    DE102016114447B4|2019-11-14|Tillage tines for a tillage implement and tillage implement
    EP0923851A1|1999-06-23|Loosening share for soil working implement
    DE202009008582U1|2009-09-24|Tillage tool
    DE202016002876U1|2016-08-17|Soil cultivation tool for agricultural tillage machine and cutting element therefor
    DE202016002875U1|2016-08-16|Soil cultivation tool for agricultural tillage machine and cutting element therefor
    DE102016110396B4|2019-11-14|Harrow
    EP2798927B1|2016-06-22|Mouldboard
    DE102019106393A1|2020-09-17|Wing share tip and tillage implement with it
    EP2773176B1|2015-09-23|Moldboard for plows
    EP3172951A1|2017-05-31|Soil working tool
    DE434444C|1926-09-25|Subsoiler
    DE202020005569U1|2021-09-08|Agricultural soil cultivation tools, in particular rotary harrow tines or harrow tines
    AT16475U1|2019-10-15|Heck Tiefenlockerer
    DE757201C|1953-10-05|Schraemmeissel, in which a hard metal piece of essentially rectangular cross-section is embedded in the shaft at an acute angle to the chest side
    DE533379C|1931-09-12|Plow body with chisel
    EP3225088A1|2017-10-04|Soil working tool
    DE7236116U|1973-02-01|PLOWHOOD
    DE102006011202B3|2007-09-06|Plough blade e.g. for blade, has front cutting edge and rear edge, with rear range in which mounting holes are provided for fastening plough blade at plough bottom
    AT86741B|1921-12-27|Potato harvest plow.
    DE102014115211A1|2016-04-21|Tillage crowd
    DE1275825B|1968-08-22|Sowing machine
    同族专利:
    公开号 | 公开日
    DK2995180T3|2017-10-23|
    ES2643414T3|2017-11-22|
    EP2995180A2|2016-03-16|
    PL2995180T3|2017-12-29|
    HUE033815T2|2018-01-29|
    AT515782B1|2015-12-15|
    EP2995180A3|2016-04-27|
    EP2995180B1|2017-07-12|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    EP0923851A1|1997-12-19|1999-06-23|RDZ DUTZI GmbH|Loosening share for soil working implement|
    WO2014101907A1|2012-12-25|2014-07-03|Farmet A.S.|Working implement for agricultural machines|
    DE102009029894B4|2009-06-23|2019-03-21|Betek Gmbh & Co. Kg|Tillage tool|
    DE102011119629A1|2011-11-12|2013-05-16|HTU Verschleißtechnik OHG|Cutting and / or mixing tool, in particular share, for an agricultural implement, in particular for a harrow|EP3516938A1|2018-01-29|2019-07-31|Boehlerit GmbH & Co. KG.|Soil working tool|
    DE202018000434U1|2018-01-29|2018-02-02|Boehlerit GmbH & Co., KG.|Tillage tool|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    ATA50553/2014A|AT515782B1|2014-08-07|2014-08-07|Tillage tool|ATA50553/2014A| AT515782B1|2014-08-07|2014-08-07|Tillage tool|
    DK15170440.0T| DK2995180T3|2014-08-07|2015-06-03|Tillage Tools|
    PL15170440T| PL2995180T3|2014-08-07|2015-06-03|Soil working tool|
    ES15170440.0T| ES2643414T3|2014-08-07|2015-06-03|Soil tilling tool|
    HUE15170440A| HUE033815T2|2014-08-07|2015-06-03|Soil working tool|
    EP15170440.0A| EP2995180B1|2014-08-07|2015-06-03|Soil working tool|
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