• 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:

    公开号:SE534796C2
    申请号:SE1051326
    申请日:2010-12-15
    公开日:2011-12-27
    发明作者:Christoph Oeberseder；Thomas Drebenstedt
    申请人:Poettinger Ohg Alois；
    IPC主号:
    专利说明:

    20 25 30 534 795 2 mation, so that on the one hand a pivoting is possible, on the other hand a restoring force is produced.
    A suspension device of the kind mentioned in the introduction is shown, for example, by DE 20 2004 007 112 U1, in which the circular-cylindrical rubber elements are arranged between the bearing shells of a pivot arm and the pivot arm carrier surrounding therefrom and are held by a bearing element holder in predetermined positions. The bearing cup of the pivot arm as well as the pivot arm carrier have an approximately square cross-section, so that in the non-pivoted starting position, in which the two square contours with their main axes are rotated towards each other by rr / 4, the bearing chambers, which take against the rubber elements, an approximately triangular cross-section. EP 15 41 003 A1 shows a similar suspension device for disc beetles of a soil cultivating machine, here the cylindrical rubber elements have a flat surface on the circumferential side, with which surface they lie evenly on the flat surfaces of the swivel part carrier. Furthermore, EP 18 80 590 B1 describes a substantially similar suspension device with rubber elements, which are arranged in the triangular spaces between the bearing shells of the pivot arm and the pivot arm carrier surrounding therefrom. To prevent axial movement of the rubber elements, these have a central constriction with reduced diameter, with which they are received in the said space and the bearing chamber, respectively, while front end sections with enlarged diameter protrude from the bearing shells of the pivot arm and thereby prevent axial sliding.
    In such suspensions, the prestressing of the pivot parts in the predetermined zero position is achieved by a corresponding deformation of the rubber elements, which, however, must be quite high depending on the length of the pivot arm, in order for the tools attached to the pivot arm ends to produce a significant prestress in the form of a corresponding leverage. However, this high bias voltage of the bearing elements leads, through the creep ratio of the bearing elements, to the bearing elements being plastically deformed, whereby the bias voltage drops and possibly disappears more or less completely.
    Furthermore, in such rubber element pivot bearings, the connection stiffness to loads which act perpendicular to the pivot surface of the machine part held by the pivot part and want to tip the pivot part transversely to the pivot surface arranged therewith is relatively limited, as the rubber elements in the triangular the bearing chambers are only supported, so to speak, against a sloping surface under such loads.
    The present invention has for its object to provide an improved suspension device of the type mentioned, which avoids the disadvantages of the prior art and further develops the latter in an advantageous manner. Preferably, a permanently high, from the creep ratio of the material of the bearing elements, largely unaffected prestress of the pivot part in the predetermined zero position as well as an increased tipping stiffness for the pivot bearing relative to loads from the predetermined pivot surface, is to be achieved.
    This object is achieved in accordance with the invention by a suspension device according to claim 1. Preferred embodiments of the invention are treated in the dependent claims.
    It is thus proposed that the bearing elements are no longer formed in the form of individual rubber rods, which are received separately in the different, circumferentially distributed, bearing chambers of the space between the bearing cup of the pivot part and the pivot carrier, but instead provide a bearing element extending into several bearing chambers. , which bearing element also fills the space between two bearing chambers at least partially, in order also in this bearing section to achieve at least partially a certain support, in particular against a tilting of the pivot part towards the pivot part carrier. At the same time, the elements received in different bearing chambers are connected to each other, so that a certain coupling occurs when the adjusting deformation of the pivoting part is pivoted. According to the invention, the at least one elastic bearing element has at least two elastic bearing sections, which are received in different bearing chambers of said gaps and are connected to each other by a connecting section of the bearing element, which is also received in the space between the pivot carrier and the bearing section of the pivot part. By means of said connecting sections, a support and / or prestress can advantageously also be achieved in the gap between two bearing chambers, whereby the suspension is set in a position to absorb substantially higher tipping moments. In an embodiment of the invention, the bearing sections are connected in and of a piece with the connecting section lying therebetween, wherein the bearing sections may be of the same material as the connecting section. Alternatively, said bearing section as well as the intermediate connecting section can nevertheless be formed from different materials, for example in an fl component component, for example injection molded or extruded in an fl component component injection molding process. In this way, the material properties of the different sections can be adapted individually to the purposes to be achieved, for example in the direction that different pressure stability is achieved in different sections. In order to achieve a simple manufacture, however, a material-homogeneous design of the total bearing element, including all its sections, can be provided by a single material.
    The bearing sections received in said bearing chamber advantageously form layer thickenings in comparison with the connecting section. If only two bearing sections for two bearing chambers are connected to each other by a connecting section, then the bearing sections form thickenings on the edge seams, which are connected to each other by a thinner, flatter connecting section. However, even more than two bearing sections for more than two bearing chambers may also be connected to each other, so that the bearing sections which form thickenings like a chain are lined up at a distance from each other and are connected in pairs with each other by a connecting section. The said bearing sections are then arranged around the pivot carrier in different portions and are connected to each other by a connecting section.
    The bearing elements have, in this case, advantageously, regardless of their different thick sections, together seen a strand profile, the longitudinal axis of which extends parallel to the longitudinal axis of the pivot part carrier and parallel to the pivot axis of the suspension.
    In order also to obtain a support for the pivot part relative to the pivot part carrier in the gap between the bearing chambers, in an advantageous embodiment the invention is provided so that said connecting section between the bearing sections of a bearing element has support surfaces on opposite sides against which the bearing section of the pivot part and the pivot part carrier can be supported.
    The connecting sections are also advantageously designed in such a way that a support for the pivot part relative to the pivot part carrier is achieved in the area around the connecting section through the elastic bearing element, and certainly in particular against a tilting of the suspension due to loads on the pivot member. the part transverse to its predetermined turning surface.
    Depending on the desired tip stiffness of the suspension, said connecting sections can be of different design, in particular have different thicknesses. In order to achieve a particularly high tipping rigidity, the bearing element can be prestressed mounted also in the area around its at least one connecting section, i.e. be elastically shaped even in the non-rotated zero position of the pivot part. In particular, in an advantageous embodiment of the invention, said connecting section in undeformed initial state may have a thickness which is at least slightly greater than the free width of the space between the swing part carrier and the surrounding bearing section of the swing part in the area around said connecting section, so that the elastically deformable the connecting section of the bearing element experiences a certain compression through the mounting in the bearing.
    To obtain. even without large deformation of the elastic bearing element, a high prestressing of the pivot part in its zero position and thus a sufficiently high pivotal stiffness with respect to rotation about the pivot axis, according to a further advantageous aspect of the present invention it is provided that the bearing sections of the elastic the bearing elements are pre-adapted, even with their circumferential sides in a tension-free state, to the contour of the inner circumferential surface of the bearing section of the pivot part and / or to the outer circumferential contour of the pivot part carrier. In particular, said bearing sections of the bearing element may have flat surfaces on the circumferential sides, with which flat surfaces the bearing sections rest evenly on the flat surfaces of the pivot part carrier as well as on bearing sections of the pivot part surrounding them.
    Advantageously, even in the de-energized state, the bearing sections of the bearing element have a substantially contour corresponding to the cross-sectional contour of the bearing chambers, so that the bearing chambers are filled completely without much deformation of the respective bearing sections of the elastic bearing elements. In particular, the layer sections have a polygonal cross section.
    According to an advantageous embodiment of the invention, the pivot part carrier as well as the bearing section of the pivot part which surrounds it has a rectangular, in particular square, cross-sectional contour, possibly with rounded corners, so that in the zero position of the pivot part a rotation of the main axis the pivot bearing and surrounding bearing grounds with rr / 4 result approximately triangular bearing chambers, which may have rounded corners. In these - on an approximately - triangular bearing chambers, the bearing sections of the at least one bearing element are also advantageously formed in cross-section triangularly.
    The triangular cross-section of said bearing sections is in this case adapted to the cross-sectional shapes of the triangular bearing chambers and may optionally have correspondingly rounded tips and edges, respectively. The bearing sections have a cylindrical shape with a triangular base, a connecting section being formed on at least one of the two base edges, which connecting section connects the respective bearing sections with an adjacent bearing section, which is located in the next bearing chamber.
    In order to achieve a high prestress with only small deformation of the bearing elements, the bearing sections can mainly fill the corresponding bearing chamber between the pivot part carrier and the bearing section of the pivot part surrounding it, completely so that no gap or cavity remains in the area around the bearing chambers. If even a small prestress is sufficient with respect to pivoting about the pivot axis, then cavities may remain in the area around the corners or the rounded corners of the bearing chambers, whereby, for example, the triangular bearing sections can have a flattened tip, so that the cross-sectional shape resembles a trapezoidal rectangle, or in other words, the height of the triangular bearing sections expresses less than the height of the triangular bearing chambers. However, a substantially complete contour adjustment of the bearing sections to the bearing chambers is preferred, so that the latter are filled mainly without voids.
    If the pivot part carrier as well as the bearing section of the pivot part are designed at right angles, as in said manner, so that four approximately triangular bearing chambers are formed, then two bearing elements can be provided in an advantageous embodiment of the invention, which comprise two bearing sections which are interconnected by an intermediate connection section.
    Thus, the four bearing chambers are filled by two bearing elements, which extend into two bearing chambers and support and fill, with their connecting section, the section between the two bearing chambers which is important between the pivot carrier and the bearing section of the swivel part. The bearing elements have in this respect been regarded as a cross-section on approximately the same contour as a bridge arch, with which the respective bearing elements extend and support against two edge profile sides of the swivel part carrier.
    The present invention will be described in more detail below with reference to a preferred embodiment and associated drawings. The drawings show: fi gur 1: a schematic side view of a soil cultivating device which has two rows of disc beetles with a plurality of pivot arms which carry thrust beetles, which pivot arms are pivotally mounted by means of a rubber pivot bearing according to an advantageous embodiment of the invention, fi gur 2 of the pivot arm of the device's slides from Figure 1, which shows the bearing elements in the space between a pivot member carrier which they fi nier the pivot axis and the bearing section of the pivot arm, and fi gur 3: a perspective view of one of the elastic bearing elements of the pivot from fi gures 1 and 2.
    Figure 1 shows, for example, a soil cultivating device 1, which can for example be combined with a seed drill (not shown) and comprises two disc beetle rows 5 and 6 in the embodiment shown, which disc beetle rows are arranged one after the other in the direction of travel and extend across the direction of travel over working width. Following the rows of disc beetles 5 and 6, in the embodiment shown, a packing roller 2 for soil packing as well as a harrow 3 are arranged, see Figure 1.
    Said disc beetle rows 5 and 6 comprise a plurality of disc beetles 7, arranged in a row next to each other, which are upright against the direction of travel and yet inclined and rotatably mounted on a pivot arm 8. All pivot arms 8 of a beet row 5 and 6, respectively, are suspended on a cross member forming a swing carrier 9, which cross member can possibly be divided into bär your support portions. The suspension 10 for the pivot arm 8 which forms the pivot parts is then designed so that the disc beetles 7 are pressed into the ground, but can nevertheless fold away upwards in the event of a collision with obstacles such as, for example, stones. For this pivoting movement, the longitudinal axis of said pivot carrier 9 pivots the pivot axis.
    As Figure 1 shows, the pivot arms 8 extend from the disc beetles 7 obliquely upwards and up to the transverse pivot carrier 9. At its pivot-bearing end, each pivot member 8 comprises a tubular bearing section 11, which encloses the corresponding section of the pivot carrier 9. As Figure 2 shows. the pivot member 9 in the embodiment shown has a rectangular cross-section, which preferably has a square contour and may possibly have rounded corners. In the embodiment shown, the bearing section 11 which surrounds the pivot carrier 9 also has a rectangular cross-section, which advantageously also - approximately - has a square contour and rounded corners. In the embodiment shown, the inner circumferential surface of the tubular bearing section 11 in the area around the rounded corners has light, step-forming, preferably plateau-shaped projections 4, opposite which the flat central sections 24 of the flat sides of the inner circumferential surface are slightly recessed, see fi clockwise.
    As Figure 2 shows, the bearing section 11 of the pivot arm 8 is rotated with its main axes at an angle 11/4 to the main axes of the pivot carrier 9, so that the space between the bearing section 11 and the pivot carrier 9 is divided into four bearing chambers 12, which have a on an approximately - triangular cross-sectional contour.
    In said bearing chamber 12 there are rubber-elastic bearing elements 13, which have a cylindrical contour in accordance with a kind of extrusion profile, which contour base surface, however, deviates from the circular shape.
    As Figures 2 and 3 show, each bearing element 13 has an - approximately - bridge-shaped cross-sectional area, so that each of the two bearing elements 13 extends on two flat sides of the pivot part carrier 9.
    Each bearing element 13 here extends in two bearing chambers 12 as well as in the section between the bearing chambers for the space 14 'between the pivot part carrier 9 and the bearing section 11 of the pivot arm 8.
    As Figure 3 shows, each bearing element 13 has two bearing sections 15, 16, which extend into each of the bearing chambers 12 and are connected to each other by a common connecting section 17, which is formed. in and of a piece on said bearing sections 15 and 16. Said bearing sections 15 and 16 form thickenings in comparison with the intermediate connection section 17 between them, i.e. they are substantially thicker than the connecting section 17. In the embodiments shown, the bearing sections 15 and 16 of the block-shaped bearing elements 13 have an - on an approximately - triangular cross-sectional contour and together consider a strand profile shape, which is adapted to the contour and shape of the two bearing chambers 12. the bearing sections 15 and 16 are hereby connected to each other along one of their base edges by the shaped connecting section 17, the connecting section 17 being in the form of a thin, flat stay, which forms the broken and curved connecting area between the two triangular bearing blocks.
    The bearing elements 13 are provided with their bearing sections 15 and 16 as well as the connecting section 17 perfectly fitted and press-fitted between the outer circumferential surface of the pivot part carrier 9 and the inner circumferential surface of the bearing section 11 of the respective pivot arm 8, so that the bearing section 11 and thus the pivot arm 8 is stable and fixed held at the pivot part carrier 9. When deforming the bearing elements 13, the pivot arms 8 can nevertheless be pivoted about the longitudinal axis of the pivot part carrier 9.
    As Figure 2 shows, the bearing section 11 of the pivot arm 8 is designed as a shackle, which can be clamped by means of at least one suitable clamping means 18 around the pivot part carrier 9 and the bearing elements 13 laid thereon. which can be clamped together by means of two screws, so that the inserted bearing elements 13 are at least easily biased when said bracket is tightened.
    Said bearing elements 13 are advantageously made of rubber, however, they may alternatively be made of a suitable synthetic material, which has the desired elasticity and desired hardness.
    The design of the bearing elements 13 shown in Figures 2 and 3 advantageously causes a high preload of the respective pivot arm 8 in the zero position, even without large deformations of said bearing element 13. As a result, prestressing losses due to the creep ratio of the bearing elements 13 can be avoided. Furthermore, the step-shaped connecting section 17 and the supports thus obtained cause a higher tip stability for the suspension, which can thereby absorb substantially higher torques, which can be induced on the pivot arms 8 by forces transverse to the predetermined pivot surface, for example by disc bending. be directed with a slight slope towards the direction of travel. Said transverse moment from the predetermined pivot surface is hereby affected according to fi gur 1 by forces which act perpendicular to the projection plane in fi gur 1 on the pivot arms 8.
    权利要求:
    Claims (2)
    [1]
    Suspension device for an agricultural machine for suspending a machine part, in particular a tillage tool such as a seed drill or disc harrow element (7) and the like, with at least one pivot part carrying the machine part, preferably a pivot arm (8), as well as a pivot part carrier (9), in which the pivot part is pivotally mounted, the pivot part gripping the pivot part carrier (9) with a bearing section (11), the bearing section (11) of the pivot part and / or the pivot part carrier (9) having a circumferential surface deviating from the circular cylinder shape, so that a gap (14) between the bearing section (11) and the pivot part carrier (9) is divided into lag your bearing chambers (12) in the circumferential direction around the pivot part carrier (9), wherein at least one elastic bearing element (13) is received in at least one of the bearing chambers (12), that an at least partially elastic deformation occurs during a pivoting of the pivot part, characterized by water - at least one bearing element (13) has at least two elastic bearing sections (15, 16), which are received in different bearing chambers (12) of said gaps (14) and are connected to each other by a connecting section (17) of the bearing element (13), which is also received in the gap (14), - the connecting section (17) has support surfaces (19, 20) on sides lying opposite each other, one support surface (19) being in contact with the pivot part carrier (9) and the other support surface (20) being in contact with the pivot part, - the connecting section (17) is prestressed in the space (14) between the pivot part carrier (9) and the pivot part, - the bearing sections (15, 16) have circumferential sides which, in the tension-free state of the elements, have a shape which includes flat surfaces (21, 22) which are shaped to the contour of the inner circumferential surface of the bearing section (11). at the swing arm. 10 15 20 25 30 35 534 795 1
    [2]
    2.. Suspension device according to the preceding claim, wherein the bearing sections (15, 16) are formed in and of a piece on the connecting section (17) and / or consist of the same material as the connecting section (17). . Suspension device according to one of the preceding claims, wherein the bearing sections (15, 16) form layer thickenings in comparison with the connecting section (17). Suspension device according to one of the preceding claims, wherein the bearing sections (15, 16) of the bearing element (13) are prestressed in the bearing chambers (12). Suspension device according to one of the preceding claims, wherein the bearing sections (15, 16) at their circumferential contour, which face the pivot carrier (9), have a flat surface (23). . Suspension device according to one of the preceding claims, wherein the bearing sections (15, 16) are cylindrically designed and have an approximately triangular cross-section. . Suspension device according to one of the preceding claims, wherein the bearing chambers (12) between the bearing section (11) of the pivot part and the pivot part carrier (9). preferably the total gap (14), are filled by the at least one bearing element (13) completely without voids. . Suspension device according to any one of the preceding claims, wherein the pivot part carrier (9) and the bearing section (11) of the pivot part have a rectangular profile and with their main axes turned towards each other at an angle of 11/4 in the zero position, the resulting four approximately triangular bearing chambers (12) being completely filled or partly through two bearing elements (13), each of which extends into two bearing chambers (12). . Suspension device according to any one of the preceding claims, wherein the bearing elements (14) have a cylindrical and / or extrusion-shaped shape with a bridge-arch-like base and extend on two sides of the swivel carrier (9) angled towards each other.
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    同族专利:
    公开号 | 公开日
    SE1051326A1|2011-06-16|
    FR2953681B1|2016-03-11|
    DE102009058342A1|2011-06-16|
    FR2953681A1|2011-06-17|
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    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    DE102009058342A|DE102009058342A1|2009-12-15|2009-12-15|Mounting device for mounting e.g. seeding coulter in agricultural machine, has flexible bearing element including bearing sections that are accommodated in respective bearing chambers and connected with each other by connecting section|
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