• 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 sliding bearing element (1) with a sliding bearing element body (2) which has a width (19) in the axial direction (17) and an inner diameter (16) and which has a supporting layer (2) and at least one further layer (4), in particular the sliding layer of the sliding bearing element (1), wherein the at least one further layer (4) has a surface (12) with said inner diameter (16), and wherein on this surface (12) a plurality of elevations (13) are formed which during the wear of the sliding bearing element (1) at least partially wear, and which have a height (15) which is at least 0.0008% and at most 2% of the inner diameter (16) of the Gleitlagerelementkörpers (2), in particular at least 4 microns and at most 400 microns, and having a total area, measured at half the height (15) of the elevations (13), which is between 10-6 times and 10-2 times the total area of the surface (12) of the at least one further layer (4). is.
    公开号:AT515701A4
    申请号:T50594/2014
    申请日:2014-08-27
    公开日:2015-11-15
    发明作者:
    申请人:Miba Gleitlager Gmbh；
    IPC主号:
    专利说明:

    The invention relates to a sliding bearing element with a sliding bearing element body having a width in the axial direction and an inner diameter and comprising a support layer and at least one further layer, wherein the at least one further layer has a surface, and wherein on this surface a plurality of elevations are formed. Furthermore, the invention relates to a method for producing this sliding bearing element.
    The inlet of a plain bearing represented a phase of increased failure risk.
    In the case of a radial plain bearing without special edge formation (such as a so-called roof edge, in which the edge is broken), the side edges in particular represent an overload-endangered area. However, even if a special edge formation is undertaken, this endangerment can not be completely ruled out. In the course of the running-in of the sliding bearing, ie at the beginning of the "sliding bearing life", there is a rounding of the side edges and thus a much more uniform load distribution in storage, whereby the problem of these areas at risk of overuse usually disappears as far as possible. In other words, therefore, the sliding bearing must withstand this running-in phase in order to arrive at normal operation with a substantially more uniform load distribution.
    In order to master the problems described during the running-in of a slide bearing, various solutions are offered in the prior art. On the one hand, these relate to the improvement of the installation of the plain bearing to the shaft, for example by contour drilling (so-called blended edges) or by the above-mentioned roof edges. It is also trying to improve the system of the plain bearing to the shaft thereby by the shaft with a
    Peg grinding is provided, whereby the shaft has in the area of the system to the plain bearing with a crown. Furthermore, special run-in coatings are known.
    On the other hand, the measures for avoiding the inlet problems of the sliding bearing concern the improvement of the oil supply, for example by grooves or empty grooves.
    The present invention is based on the object to reduce the risk of seizure of a sliding bearing during the break-in phase.
    The object of the invention is achieved on the one hand with the above sliding bearing element, in which the elevations have a height which is at least 0.0008% and a maximum of 0.08% of the inner diameter of the Gleitlagerelementkörpers, and on the other hand in the aforementioned method for producing the sliding bearing element, according to which the elevations are produced with a height which is at least 0.0008% and at most 2% of the inner diameter of the plain bearing element body, in particular at least 4 pm and at most 400 pm.
    Holes per se, which are formed on sliding surfaces, are known from the prior art. Thus, e.g. DE 60 2006 000 573 T3 discloses a sliding element comprising a base material, an intermediate layer made of a lead-free metal on the base material, and a coating of Bi or a lead-free Bi alloy on the intermediate layer. The grains in the coating in this case have a columnar habit, which is elongated along a thickness direction of the coating. The bismuth or bismuth alloy having such a crystal orientation exhibits a fine stable sliding surface on which protrusions are formed in the shape of a triangular pyramid or a quadrangular pyramid. This is to better hold oil on the surface, thereby improving its oil wettability and anti-sticking properties. The load-bearing capacity of the coating itself is improved by the correspondingly oriented grains of the coating. Accordingly, the projections are relatively small.
    By contrast, with the surveys according to the invention, an additional support of the sliding partner, so for example a shaft achieved. As a result, exposed areas of the plain bearing which are at risk of overloading are temporarily partially relieved of load. Usually, in plain bearings is trying to keep the break-in phase as short as possible or shorten as much as possible, i. the sliding bearing is already adapted to the surface of the sliding partner after a relatively short time. The invention proceeds in exactly the opposite way, namely by extending the run-in phase by the temporary partial relief of overload-prone areas of the sliding bearing. Through this partial relief and the extension of the running-in phase, the energy input into these overload-endangered areas, in particular in the edge areas, can be reduced. This leads to a reduction in the risk of failure in the inlet, since the delay of the edge wear of the sliding bearing element can greatly reduce the risk of overloading with the lubricant film being torn off and the sliding partners being welded.
    To further improve these effects can be provided in accordance with further embodiments of the sliding bearing element that the elevations have a width, measured at half the height of the elevations, at least 0.001% and at most 5% of the width of the sliding bearing element body, in particular at least 5 pm and a maximum of 500 pm , amounts, and / or that the surveys are at least 0.05 times and not more than 100 times the width of the surveys, and / or that the surveys have a total area measured at half the height of the surveys between 1.10 ' 6 times and 1.10'2 times the total surface area.
    Since the elevations have a relatively small width and / or length (within the stated ranges), in particular if they are aligned in the direction of rotation of the sliding partner, their adaptation wear is limited. The risk of failure of the sliding bearing element can thus be further reduced. Surprisingly, it was found in the course of the tests that even a small area fraction of 1.10'6 of the total area of the surface can cause a reduction of the edge pressure under load of the built-in plain bearing element. This is due to the rapid onset of wear of the surveys during the inlet of the sliding bearing element and the resulting increase in wing increase, as well as the previously occurring increase in the edge load surface. On the other hand, if the area ratio is larger than 1.10'2 of the total area of the surface, the oil film may be disturbed. In addition, the friction is increased by the contact of the surveys with the sliding partner.
    According to a further embodiment of the sliding bearing element can be provided that the elevations have a rectangular or trapezoidal or triangular or semi-circular cross-section. In particular, with the trapezoidal or triangular or semi-circular cross-sections, a rapid wear of the elevations and thus an increase in the support surface can be achieved or improved during the inlet of the sliding bearing element. On the other hand, a simpler producibility of the elevations is achieved with a rectangular cross-section in that, for example, they can be applied to the surface of the at least one further layer with the aid of a corresponding mask.
    It may further be provided that the elevations are arranged in mutually offset rows. By the displacement, an improved support of the sliding partner can be achieved even with small-scale elevations.
    To further improve this effect, it can be provided that in the sliding direction the rows have a periodicity of at least five, i. that the position of the elevations of the first row is repeated only in the fifth, tenth, etc. row following the first row.
    For better support of the particularly overload-prone edge region of the sliding bearing element during the break-in phase, the surface coverage of the surface of the at least one further layer with the elevations in the region of side edges of Gleitlagerelementkörpers may be greater than in a central region of the surface. It can thus be distributed over the load in the edge area on more surveys, whereby the running-in phase can be further extended.
    At least part of the elevations may consist of the material of the at least one further layer. It can thus be improved, the binding strength of the surveys on the at least one further layer. In addition, it can thus be achieved that, after the running-in phase, the at least one further layer on which the sliding partner slides during operation comes into contact with the same material over its entire surface.
    On the other hand, however, at least some of the elevations may consist of a material which is different from the material of the at least one further layer in order to be able to better or purposefully adapt the course of wear of the elevations during the running-in of the plain bearing element.
    According to a variant embodiment of the two last-mentioned embodiments of the plain bearing element, it can be provided that the material of the at least one further layer and / or the material which is different from the material of the at least one further layer contains or contains at least one solid lubricant. It can thus be reduced, the friction coefficient of the sliding pair, whereby even with at least partial tearing of the oil film by the respective material provided a certain basic lubricity and thus the safe passage through the running-in phase can be further improved.
    For better anchoring of the elevations on the at least one further layer and to better avoid bending or bending of the elevations under load, at least partially a further material having a layer thickness of at least partially on the surface of the at least one further layer between the elevations be applied half the height of the surveys. It can thus better prevent premature failure of the surveys as a result of an overload.
    It is also possible that the surveys are made of at least two different materials. It is thus possible, in particular, if, according to one embodiment, a part of the elevations consists of a material which has a higher hardness than the material from which the remaining elevations consist, better adapt the elevations to the different loads during running-in of the sliding bearing element , The wear behavior of the elevations can thus be adjusted so that after the break-in phase no elevations are present on the surface of the at least one further layer, resulting in a sliding bearing element that has a sliding surface according to a sliding bearing element known from the prior art.
    For a better understanding of the invention, this will be explained in more detail with reference to the following figures.
    Each shows in a simplified, schematic representation:
    Fig. 1 shows a variant of a sliding bearing element in side view;
    Fig. 2 is a plain bearing in cross-section according to the prior art;
    Fig. 3 is a slide bearing in cross-section with a sliding bearing element according to the
    Invention;
    Fig. 4 different variants of elevations cut in side view;
    Fig. 5 different embodiments of elevations in plan view;
    Fig. 6 different embodiments of arrangements of surveys in plan view;
    Fig. 7 variants of elevations in front view of the sliding bearing element;
    Fig. 8 further variants of elevations from a section of the sliding bearing element in front view.
    By way of introduction, it should be noted that in the differently described embodiments, the same parts are provided with the same reference numerals or the same component names, wherein the disclosures contained in the entire description can be mutatis mutandis to the same parts with the same reference numerals or component names. Also, the location information chosen in the description, such as top, bottom, side, etc. related to the immediately described and illustrated figure and these position information in a change in position mutatis mutandis to transfer to the new location.
    In Fig. 1, an at least partially metallic, in particular metallic, sliding bearing element 1, in particular a radial sliding bearing element, shown in side view. This has a sliding bearing element body 2. The slide bearing element body 2 comprises a support layer 3 and a further layer 4 arranged thereon or consists of the support layer 3 and the further layer 4 connected thereto.
    1, the sliding bearing element body 2 can also have additional layers, for example a bearing metal layer 5, which is arranged between the further layer 4 and the supporting layer 3, and / or an inlet layer 6 on the further layer 4. Between at least two of the layers of the plain bearing element 1, at least one diffusion barrier layer and / or at least one bonding layer can also be arranged.
    Since the basic structure of such multi-layer sliding bearing elements is known from the prior art, reference is made to the relevant literature on details of the layer structure.
    Likewise, the materials used, which make up the individual layers, are known from the prior art, and therefore should be referred to the relevant literature with respect to this.
    The sliding bearing element 1 forms together with at least one other sliding bearing element-depending on the structural design can also be present more than another sliding bearing element - a sliding bearing. In this case, the upper sliding bearing element in the installed state is preferably formed by the sliding bearing element 1 according to the invention. But there is also the possibility that at least one of the at least one further sliding bearing elements is formed by the sliding bearing element 1 according to the invention.
    It is also possible that the sliding bearing element 1 is designed as a plain bearing bush, as indicated by dashed lines in Fig. 1. In this case, the sliding bearing element 1 is also the sliding bearing.
    In particular, the sliding bearing element 1 is intended for use in the engine industry or in engines.
    In Fig. 2, a sliding bearing 7 is shown according to the prior art. In the sliding bearing 7 is a component 8, for example, a shaft mounted. As indicated by an arrow 9, the sliding bearing is loaded with a force F. As a result, the component 8 bends, as shown exaggeratedly in FIG. 2, and rests against the upper plain bearing half shell only at its edges 10, 11. The edges 10,11 thereby form zones with extremely high load in the break-in phase of the sliding bearing 7, ie before the slide bearing half shell has adapted by material removal of the component 8, since the further component 8 between the edges 10,11 no longer on the upper plain bearing half shell is applied. Due to this high load on the edges 10,11 there is the risk that it comes through mixed friction and solid friction at too low or no lubrication gap to a welding of the plain bearing half shell with the component 8. This can subsequently lead to spontaneous failure of storage by trituration or seizure.
    In Fig. 3, the sliding bearing 7 is shown with the sliding bearing element 1 according to the invention. On a surface 12 of the further layer 4, which in particular forms the sliding layer of the sliding bearing element 1, and distributed over these are a plurality of elevations 13 formed or arranged. For further details on the surveys 13 reference is made to subsequent comments.
    As a result of the loading of the plain bearing 7 according to arrow 9, the further component 8 bends. As can be seen from FIG. 3, the further component 8 in the plain bearing element 1 according to the invention does not abut only against the edges 10, 11 of the sliding bearing element 1, but also at the elevations 13, which are arranged between the edges 10,11. As a result, the load acting on the slide bearing 7 is distributed better and the load on the edges 10, 11 is reduced. As a result, the problems described above in the region of the edges 10, 11 can be better avoided by the high load of the sliding bearing 7 in the running-in phase, whereby the risk of spontaneous failure of the sliding bearing 7 can be significantly reduced. During the running-in of the sliding bearing 7, the elevations 13 wear (in addition to the rounding or flattening of the edges 10, 11) completely or partially due to the adaptation of the sliding bearing 7 to the component 8. However, this does not matter because the said adjustment is completed after the break-in phase, and thus the elevations 13 are no longer needed. However, if there are still residues of the elevations 13, they can act positively on the lubrication of the sliding bearing 7 by an improved lubricant retention capacity.
    It should be noted that it is also possible that elevations 13 are arranged directly adjacent to the edges 10,11 or directly thereafter.
    As indicated by dashed lines in FIG. 3, the possibility also exists within the scope of the invention that the edges 10, 11 are designed, for example, as roof edges 14.
    In Fig. 4 a plurality of different embodiments of the elevations 13 are shown.
    It should be noted at this point that the embodiments of the slide bearing element 1 and the elevations 13 shown in the figures are indeed preferred embodiments, but these are not to be understood as limiting the scope of the invention.
    Generally, the elevations 14 have a height 15 which is at least 0.0008% and at most 2% of an inner diameter 16, in particular at least 0.008% and at most 0.8% of the inner diameter 16 (FIG. 1) of the sliding bearing element body 2.
    The height 15 is the distance between the surface 12 of the at least one further layer 4 and the farthest point of the elevations 15 of this surface 12th
    The inner diameter 16 is defined as the diameter of the sliding bearing 7 or the sliding bearing element 1 on the surface 12 of the at least one further layer 4, that is, as the diameter of the sliding bearing 7 or of the sliding bearing element 1 at the base of the elevations 13.
    As has emerged in the course of tests carried out, it is preferred if the elevations 13, in particular regardless of the above statements on the relative value of the height 15, have a height 15 which at least 4 pm and at most 400 μιτι, preferably at least 10 μηη and highest of Half of the bearing game.
    The bearing clearance is according to the technical language of the difference of the inner diameter, ie in particular the inner diameter 16 of the sliding bearing 7 and the sliding bearing element 1 and the outer diameter of the other component 8, ie in particular a shaft.
    The elevations 13 can all have the same or at least approximately the same height 15 within the scope of the manufacturing tolerances. But it is also possible that the elevations 13 have a mutually different height 15. For example, first elevations 13 may have a first height 15 and second elevations a second height 15, wherein the first height 15 is smaller than the second height 15. In particular, the elevations 13 are arranged with the smaller height 15 in the region of the edges 10,11 and the elevations 13 are arranged with the greater height 15 in the central region of the surface 12 of the layer 4 and between the elevations 13 with the lower height 14. In extreme cases, the elevations 13 - viewed in frontal view of the sliding bearing element 1 as shown in Fig. 3 - have a height profile, wherein the height 15 of the elevations 13 of the edge 10 toward the center region increases and from the central region in the direction of the second Edge 11, the first in an axial direction 17 (Fig. 3) opposite, decreases again. The arrangement or formation of elevations 13 with greater height 15 in the central region of the sliding bearing element 1, a better support of the component 8 can be achieved during the running-in phase.
    The elevations 13 are arranged on the radially innermost layer of the sliding bearing element 1, in particular on the layer 4, and project beyond this in the radial direction inwardly, as shown in FIG. 3 can be seen.
    According to one embodiment variant of the sliding bearing element 1, it can be provided that the elevations 13 have a width 18 which is at least 0.001% and at most 5% of a width 19 (FIG. 3) of the sliding bearing element body 1 - viewed in the axial direction 17. The elevations 13, in particular regardless of the above explanations, preferably have a width 19 of at least 5 μm and a maximum of 500 μm for the relative value of the width 19. Particularly preferably, the elevations 13 have a width 19 of at least 10 pm and a maximum of 100 pm.
    The width 18 is measured at half the height 15 of the elevations 13th
    It is possible that all elevations 13 have the same or at least approximately the same width 18 in the context of manufacturing tolerances.
    But it is also possible that the elevations 13 have a mutually different width 18. For example, first elevations 13 may have a first width 18 and second elevations a second width 18, wherein the first width 18 is smaller than the second width 18. In particular, the elevations 13 are arranged with the smaller width 18 in the region of the edges 10, 11 and arranged the elevations 13 with the larger width 18 in the central region of the surface 12 of the layer 4 and between the elevations 13 with the smaller width 18. In extreme cases, the elevations 13 - in end view of the Gleitla- gerelement 1 as viewed in Fig. 3 - have a width profile, wherein the width 18 of the elevations 13 of the edge 10 toward the center region increases and from the central region in the direction of the second edge 11, which is the first in an axial direction 17 (Fig. 3) opposite, decreases again. But it is also the reverse width of the surveys 13 possible.
    By adjusting the width of the elevations 13 whose wear duration and thus the support of the component 8 during the break-in phase and ultimately thus the duration of the break-in phase can be influenced, with wider elevations 13 cause a longer break-in phase.
    4 shows various preferred cross-sectional shapes of the elevations 13. Thus, the elevations 13 may have a semicircular, a round, a rectangular or a square (as indicated by dashed lines in FIG. 3), a triangular or trapezoidal (as likewise shown in FIG. 3 is indicated by dashed lines) have cross section.
    The cross section of the elevations is based on the direction of the circumference of the sliding bearing element. 1
    Although this is a preferred embodiment of the elevations 13, other cross-sectional shapes are possible within the scope of the invention, for example, a completely irregular cross-section or a pentagonal, etc. About the cross-sectional shape of the elevations 13 can also be influenced the duration of the run-in phase, for example, elevations 13th wear with triangular cross section faster than elevations 13 with rectangular cross-section.
    There are also embodiments of the sliding bearing element 1 with different cross sections of the elevations 13 possible. For example, in the area of the edges 10, 11 of the sliding bearing element body 2, elevations 13 with triangular and / or semicircular elevations and in the center region of the surface 12 of the layer 4 of the sliding bearing element body 2 can be arranged or formed with elevations with a rectangular cross section. Other combinations of different cross-sectional shapes are also possible.
    In Fig. 5, further embodiments of the elevations 13 are shown on the layer 4 in plan view.
    The elevations 13 may have a maximum length 20 of at least 0.05 times and at most 100 times the width 18 of the elevations 13. Preferably, the length 20 of the protrusions 13 is selected from a range of 0.5 times to 2 times the width 18 of the protrusions 13.
    The length 20 of the protrusions 13 is measured in the circumferential direction of the sliding bearing element body 2. Over the length 20 of the elevations, the sliding path of the component 8 (FIG. 3) on the elevations can be influenced. As a result, the extent of the support of the component 8 on the elevations 13 can be influenced as a result. Longer elevations 13 cause an extension of the running-in phase of the sliding bearing element 1, since the wear of the elevations 13 lasts longer.
    It is possible that all elevations 13 have the same or at least approximately the same length 20 in the context of manufacturing tolerances.
    But it is also possible that the elevations 13 have a mutually different length 20. For example, first elevations 13 may have a first length 20 and second elevations a second length 20, the first length 20 being shorter than the second length 20. In particular, the elevations 13 having the smaller length 20 are arranged in the region of the edges 10, 11 and the elevations 13 are arranged with the greater length 20 in the central region of the surface 12 of the layer 4 and between the elevations 13 with the shorter length 20. In extreme cases, the elevations 13 - viewed in frontal view of the sliding bearing element 1 as shown in FIG. 3 - have a length profile, wherein the length 20 of the elevations 13 increases from the edge 10 in the direction of the central region and from the central region in the direction of the second edge 11, which is opposite to the first one in an axial direction 17 (FIG. 3). But it is also the reverse length of the elevations 13 possible.
    As can be seen from FIG. 5, the elevations 13 can have a rod-shaped or strip-shaped, or an irregular, or a cube-shaped, or the said semicircular, or an oval shape-viewed in plan view. Again, other shapes of the elevations 13 are also possible here, in particular in combination with the above statements on the cross-sectional shape of the elevations 13.
    From Fig. 6, various embodiments of the arrangement of elevations 13 on the surface 12 of the layer 4 can be seen. Shown is a section of the surface 12 in plan view of the layer 4, wherein the vertical extent of the layer 4 whose width 19 and consequently the horizontal extent represents the circumferential direction of the sliding bearing element 1.
    Although only relatively small-area elevations 13 are shown in FIG. 6 for reasons of clarity, the following explanations can generally be applied to elevations 13 according to the invention.
    As can be seen from FIG. 6, the elevations 13 are preferably arranged in rows and columns. In this case, the rows and columns can not be formed offset to each other, so that the elevations 13 occupy the vertices of a quadrangle.
    But it is also a displacement of the rows and / or columns possible. For example, the elevations 13 occupy the vertices of a hexagon, as indicated in Fig. 6. The hexagon can be formed with side edges of equal length or have a longitudinal extent in the direction of the width 19 or preferably in the circumferential direction.
    According to a preferred embodiment variant of the slide bearing element 1, it may be provided that the rows-viewed in the circumferential direction of the slide bearing element 1 -have a periodicity of at least five, as likewise shown in FIG
    Fig. 6 is shown. It is meant that the position of the surveys 13 at the earliest in the sixth row again corresponds to that of the first row.
    The periodicity may also be greater than five, for example six or seven or eight, so that the illustration in FIG. 6 is not intended to be limiting.
    But there are also other than the pattern shown in Fig. 6, the elevations 13 possible - although these are preferred. For example, the elevations 13 may also occupy the vertices of a regular or irregular octagon.
    Further, it is possible that the elevations 13 are arranged or formed completely irregularly distributed over the surface 12 of the layer 4.
    According to another preferred embodiment variant of the sliding element 1, it is provided that all elevations 13 arranged or formed on the surface 12 of the layer 4 have a total area, measured on half fleas of the elevations, which are between 1.10 2 times and 1.10.sup.2. times the total surface area, as stated above. The total area is preferably about 1. 10 times the total area of the surface.
    In Fig. 7, a further embodiment of the arrangement of the elevations 13 on the surface 12 of the layer 4 of the sliding element 1 is shown. Here, the surface coverage of the surface 12 of the at least one further layer 4 with the elevations 13 in the region of the edges 10,11 of the sliding bearing element body 2 is greater than in a central region 21 of the surface 12. The surface coverage in the region of the edges 10,11 can be 1.2 times to 5 times higher than the middle range 21.
    But it is also possible that the surface coverage of the elevations 13 in a portion of the central region 21 is higher than in other areas of the Oberflächeni2, as indicated in Fig. 7 by elevations 13 shown by dashed lines.
    But there are also other embodiments of areas with a to at least one other area of the surface 4 denser area occupancy of the elevations 13 possible.
    At least part of the elevations 13 may consist of the material of the at least one further layer 4. In particular, all elevations 13 may be formed from the material of the layer 4, that is, for example, a material for a sliding layer of a sliding bearing element. Such materials, in particular metal alloys, are known from the prior art.
    However, it is also possible for at least some of the elevations 13 to consist of a material which is different from the material of the at least one further layer 4, as shown in FIG. 8 by means of an embodiment variant. At least some of the elevations 13 consist of a first material 22 and a second material 23 arranged thereon. The two materials 22 and 23 are shown separately in FIG. 8 by a dashed line. At least one or all elevations 13 can therefore be made of at least two different materials 22, 23.
    In this case, the first material 22 may in turn be the material of which the layer 4 consists. The second material 23 is preferably a metal, a metal alloy or a polymer.
    However, there is also the possibility that the elevations 13 as such are each made of a single material, but on the surface 12 of the layer 4 at least two elevations 13 are arranged, which consist of mutually different materials 22, 23. For example, a first series of elevations 13 made of the first material 22 and a second series of elevations 13 may be made of the second material 23.
    Again, very different variants of the formation of the elevations 13 of at least two materials and their distribution on the surface 12 of the layer 4 are possible.
    In general, however, all elevations 13 may be made of a different material to the material of the layer 4.
    According to a preferred embodiment, a part of the elevations 13 of a first material 22, which has a higher hardness than the second material 23, from which the remaining elevations 13 consist.
    Preferably, at least some or all of the elevations 13 at least partially or entirely to a microhardness of at least 25 HV 0.02 and 110 HV at most 0.02.
    Preferably, at least part or all of the protrusions 13 are at least partially or wholly made of a tin-based alloy or an aluminum-based alloy or a synthetic polymer or a combination thereof.
    The elevations 13 can be made of a material or the material 22 and / or the material 23 can be produced, which contains at least one solid lubricant, such as M0S2, graphite or hex-BN. The proportion of the at least one solid lubricant to the material may be between 1 wt .-% and 15 wt .-% or between 15 wt .-% and 65 wt .-% in the case of a synthetic polymer amount.
    Dashed line is shown in Fig. 7 that on the surface 12 of at least one further layer 4 between the elevations 13 at least partially another material with a layer thickness of at most half the height of the elevations 13 may be applied. In particular, this material may be a material from which inlet layers 6 (FIG. 1) known from the prior art for sliding bearings are manufactured. As can be seen from FIG. 7, this further layer does not level the elevations 13, so that the latter still protrude radially inwards over the surface of this further layer.
    The elevations 13 can be produced with the aid of a mask which is placed on the surface 12 of the layer 4. The mask has corresponding openings at the locations where the elevations 13 are to be formed. After the deposition or arrangement of the at least one material for the elevations 13 on the layer, the mask is removed again, so that the elevations remain on the surface 12. The orders of the material for the elevations 13 through the mask can be made by methods known from the prior art.
    It is also possible to deposit the elevations galvanically without a mask on the surface 12 of the layer 4. For this purpose, an electrolyte-flowed needle can be brought to the surface 12. Due to the high flow velocity, increased separation occurs in the area of the needle.
    The anode can also be placed in the needle, whereby the elevations 13 only form directly under the needle, so that the elevations 13 can be placed more precisely.
    Furthermore, a targeted rough deposition is possible. For this purpose, for example, a colloidal metal, in particular colloidal copper, or metal nanoparticles, in particular copper nanoparticles, or metal microparticles, in particular copper microparticles, can be dispersed in an electrolyte. Since copper is conductive, it comes on contact of the copper particle with the surface to form the elevations 13 in the deposition of the layer 4 on the support layer 3 or the bearing metal layer 5 (Fig. 1).
    However, it is also possible to sprinkle microparticles or nanoparticles on a part of the surface 12 of the layer.
    The embodiments of the plain bearing element 1 or elevations 13 illustrated in FIGS. 3 to 8 can, if appropriate, each be independent embodiments of the invention.
    The embodiments show possible embodiments of the sliding bearing element 1, wherein also various combinations of the individual embodiments with each other possible.
    For the sake of order, it should finally be pointed out that for a better understanding of the construction of the slide bearing element 1 or the elevations 13, these or their components have been shown partially unevenly and / or enlarged and / or reduced in size.
    REFERENCE SIGNS LIST 1 sliding bearing element 2 sliding bearing element body 3 supporting layer 4 layer 5 bearing metal layer 6 inlet layer 7 sliding bearing 8 component 9 arrow 10 edge 11 edge 12 surface 13 elevation 14 roof edge 15 height 16 inner diameter 17 direction 18 width 19 width 20 length 21 area 22 material 23 material
    权利要求:
    Claims (15)
    [1]
    1. plain bearing element (1) with a sliding bearing element body (2) having a width (19) in the axial direction (17) and an inner diameter (16) and which comprises a support layer (2) and at least one further layer (4), wherein the at least one further layer (4) has a surface (12), and wherein a plurality of elevations (13) are formed on this surface (12), characterized in that the elevations (13) have a height (18) which is at least 0 , 0008% and at most 2% of the inner diameter (16) of Gleitlagerelementkörpers (2), in particular at least 4 pm and a maximum of 400 pm.
    [2]
    Second sliding bearing element (1) according to claim 1, characterized in that the elevations (13) have a width (18), measured at half the height (15) of the elevations (13), the at least 0.001% and a maximum of 5% of the width (19) of the slide bearing element body (2), in particular at least 5 pm and at most 500 pm.
    [3]
    3. sliding bearing element (1) according to claim 2, characterized in that the elevations (13) have a length (20) of at least 0.05 times and at most 100 times the width (18) of the elevations (13).
    [4]
    4. plain bearing element (1) according to one of claims 1 to 3, characterized in that the elevations (13) have a total area, measured half the height (15) of the elevations (13), the between 1,10'6 times and 1.10'2 times the total area of the surface (12) of the at least one further layer (4).
    [5]
    5. plain bearing element (1) according to one of claims 1 to 4, characterized in that the elevations (13) have a rectangular or trapezoidal or triangular or semicircular or round cross-section.
    [6]
    6. plain bearing element (1) according to one of claims 1 to 5, characterized in that the elevations (13) are arranged in mutually offset rows.
    [7]
    7. sliding bearing elements (1) according to claim 6, characterized in that in the circumferential direction of the sliding bearing element (1), the rows have a periodicity of at least five.
    [8]
    8. sliding bearing element (1) according to one of claims 1 to 7, characterized in that the surface coverage of the surface (12) of the at least one further layer (4) with the elevations (13) in the region of edges (10, 11) of the sliding bearing element body (2) is greater than in a central region of the surface (12).
    [9]
    9. sliding bearing element (1) according to one of claims 1 to 8, characterized in that at least a part of the elevations (13) consists of the material of the at least one further layer (4).
    [10]
    10. plain bearing element (1) according to one of claims 1 to 8, characterized in that at least a part of the elevations (13) consists of a material of the at least one further layer (4) different material.
    [11]
    11. plain bearing element (1) according to claim 9 or 10, characterized in that the material of the at least one further layer (4) and / or the material which is different from the material of the at least one further layer (4), at least one solid lubricant contains or contains.
    [12]
    12. plain bearing element (1) according to one of claims 1 to 11, characterized in that on the surface (12) of the at least one further layer (4) between the elevations (13) at least partially another material with a layer thickness of at most half Height (15) of the elevations (13) is applied.
    [13]
    13. plain bearing element (1) according to one of claims 1 to 12, characterized in that the elevations (13) made of at least two different materials (22, 23) are made.
    [14]
    14. sliding bearing element (1) according to claim 13, characterized in that a part of the elevations (13) consists of a material having a higher hardness than the material from which the remaining elevations (13).
    [15]
    15. A method for producing a sliding bearing element (1) with a sliding bearing element body (2) having a width (19) in the axial direction (17) and an inner diameter (16), after which on a support layer (3) at least one further layer (4) is applied, wherein the at least one further layer (4) has a surface (12), and wherein on this surface (12) a plurality of elevations (13) are formed, characterized in that the elevations (13) with a height (15) which is at least 0.0008% and at most 2% of the inner diameter (16) of the Gleitlagerelementkörpers (2), in particular at least 4 pm and a maximum of 400 pm.
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    同族专利:
    公开号 | 公开日
    AT515701B1|2015-11-15|
    WO2016029235A1|2016-03-03|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    DE3939704A1|1989-12-01|1991-06-06|Glyco Metall Werke|LAYERING MATERIAL FOR SLIDING OR FRICTION ELEMENTS AND METHOD FOR THE PRODUCTION THEREOF|
    DE4390686C2|1992-02-28|2003-04-03|Daido Metal Co Ltd|Plain bearings and process for its manufacture|
    EP0962674A2|1998-06-02|1999-12-08|Federal-Mogul Wiesbaden GmbH|Sliding bearing shell and method of making the same|
    DE102008039740A1|2008-08-26|2010-03-04|Mahle International Gmbh|bearings|DE102016124389A1|2016-12-14|2018-06-14|Jenoptik Industrial Metrology Germany Gmbh|Surface measuring device|CA2034568C|1990-01-19|1995-08-29|Yoshikazu Fujisawa|Slide member|
    JP4376519B2|2001-03-16|2009-12-02|大豊工業株式会社|Swash plate for compressor|
    JP4195455B2|2005-03-25|2008-12-10|大同メタル工業株式会社|Sliding member|
    AT12449U1|2011-02-18|2012-05-15|Miba Gleitlager Gmbh|GROOVE BEARING|
    法律状态:
    2015-12-15| PC| Change of the owner|Owner name: MIBA GLEITLAGER AUSTRIA GMBH, AT Effective date: 20151111 |
    优先权:
    申请号 | 申请日 | 专利标题
    ATA50594/2014A|AT515701B1|2014-08-27|2014-08-27|plain bearing element|ATA50594/2014A| AT515701B1|2014-08-27|2014-08-27|plain bearing element|
    PCT/AT2015/050205| WO2016029235A1|2014-08-27|2015-08-25|Sliding bearing element|
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