• 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 bearing cap (3) for a split bearing arrangement (1) which comprises a bearing block (2) in addition to the bearing cap (3), wherein the bearing cap (3) has a clamping surface (6) which in the assembled state of the bearing arrangement (1 ) on a counter-clamping surface (5) of the bearing block (2), and wherein on the clamping surface (6) and projecting over this at least one projection (7) is formed, which in the counter-clamping surface (5) of the bearing block (2) can be pressed, and the one in plan view of the clamping surface (6) has round or roundish convex cross-sectional shape. The at least one projection (7) is designed in the shape of a spherical segment or ellipsoid segment or with a cam-shaped or oval cross-sectional shape in plan view of the clamping surface (6).
    公开号:AT520205A4
    申请号:T50774/2017
    申请日:2017-09-15
    公开日:2019-02-15
    发明作者:
    申请人:Miba Sinter Austria Gmbh；
    IPC主号:
    专利说明:

    Summary
    The invention relates to a bearing cover (3) for a split bearing arrangement (1) which, in addition to the bearing cover (3), comprises a bearing bracket (2), the bearing cover (3) having a clamping surface (6) which, when the bearing arrangement (1 ) abuts on a counter clamping surface (5) of the bearing bracket (2), and at least one projection (7) is formed on the clamping surface (6) and protrudes therefrom, which can be pressed into the counter clamping surface (5) of the bearing bracket (2), and which has a round or rounded convex cross-sectional shape in a plan view of the clamping surface (6).
    Fig. 3/20
    N2017 / 14100 AT-00
    The invention relates to a bearing cover for a split bearing arrangement which, in addition to the bearing cover, comprises a bearing block, the bearing cover having a clamping surface which, in the assembled state of the bearing arrangement, bears against a counter clamping surface of the bearing block, and wherein at least one projection is formed on the clamping surface and projecting over it is that can be pressed into the counter clamping surface of the bearing chair.
    In addition, the invention relates to a bearing arrangement with a bearing cover and a bearing bracket resting thereon.
    Split bearing arrangements with a bearing bracket and a bearing cover are known from the prior art, for example for mounting a crankshaft. The bearing cap is screwed to the bearing bracket using bolts. For example, EP 1 075 605 B1 discloses a split bearing arrangement in a housing, in particular crankshaft sliding bearings for reciprocating piston machines, comprising a bearing bracket and a bearing cap made of materials of different hardness, the bearing cap formed from an iron material and being arranged such that it can be tensioned against the bearing bracket its clamping surface has protruding, sharp-edged, protrusions that can be pressed into the counter clamping surface of the bearing bracket formed from a light metal during initial assembly of the bearing cover and furthermore grooves are provided in the clamping surface of the bearing cover. The projections are designed in the form of a cutting edge or a pyramid profile, the projections having a cutting edge angle of 50 ° to 110 °. The cutting edge height above the clamping surface of the bearing cover is between 0.25 mm and 1.5 mm. The grooves connect to the cutting edge flanks of the projections and are recessed into the clamping surface, / 20
    N2017 / 14100-AT-00 these grooves are rounded with a radius of 0.15 mm to 0.30 mm. These grooves serve to accommodate the material of the bearing bracket which is displaced when the projections are pressed into the bearing bracket.
    Further examples of such projections on the clamping surfaces can be found in EP1 075 605 B1, DE 198 19 080 A, EP 1 118 780 B1, WO 2007/081715 A2, US 8,840,315 B2, EP 2 602 498 B1 WO 2013/163410 A1, EP 0 897 485 B1 and AT 507 265 A1 are known.
    The object of the present invention is to provide a bearing cap or a split bearing arrangement with which or with which the bearing cap can be tensioned better on the bearing bracket.
    The object of the invention with the bearing cover mentioned at the outset is achieved in that the at least one projection has a round or rounded convex cross-sectional shape in a plan view of the clamping surface.
    The object of the invention is further achieved with the bearing arrangement mentioned at the outset, in which the bearing cover is designed according to the invention.
    With the round or round convex cross-sectional shape it is achieved that the projection has a significantly lower notch effect compared to known embodiments of such position fixings or position positioning, and that also in the end regions of the projection. The advantage here is that this configuration of the bearing cover can reduce tensions in the bearing receptacle, as a result of which the forces and tensions introduced into the slide bearing or bearings can also be reduced due to the bracing of the bearing cover with the bearing bracket. The slide bearing or bearings can thus be held more gently in the bearing holder, which can extend their service life.
    These improvements are particularly pronounced if, according to one embodiment variant, it is provided that the at least one projection is spherical or ellipsoidal segment-shaped.
    / 20th
    N2017 / 14100 AT-00
    According to another embodiment variant, it can be provided that a recess is formed in the clamping surface, the projection being arranged between this recess and a bearing surface of the bearing cover. Although the arrangement of the projections in the other two end regions of the clamping surfaces seems more obvious for safety reasons, the projections can be positioned very close to the bearing receiving surfaces due to the reduced notch effect. This in turn has the advantage that the positioning and fixing of the bearing cover in the area of the bearing receiving surfaces can be improved.
    To further improve the above-mentioned effect, it can be provided that the projection is arranged at a distance from the start of the bearing surface which is at least 25% of the maximum diameter and a maximum of 300% of the maximum diameter of the projection.
    A further reduction in the notch effect of the projection when the bearing cover is clamped together with the bearing bracket can be achieved if, according to a further embodiment variant of the bearing cover, it is provided that a transition from the clamping surface to the projection is rounded.
    To further reduce the notch effect of the projection, it can also be provided that the projection has a diameter of at least 0.2 mm and a maximum of 4 mm.
    Improved repositioning of the bearing cover on the bearing bracket can be achieved with a reduced notch effect if at least one further elevation is formed on the surface of the projection. This creates at least one additional positioning option by forming an additional depression within the depression in the counter clamping surface. This additional recess allows the bearing cover to be repositioned more precisely. In addition, the material of the storage chair is also given the possibility of being able to dodge the bearing cover and storage chair more easily.
    / 20th
    N2017 / 14100 AT-00
    For a better understanding of the invention, this will be explained in more detail with reference to the following figures.
    Each show in a highly simplified, schematic representation:
    Figure 1 is a divided bearing assembly in cross section.
    2 shows a variant of a bearing cover in side view;
    Fig. 3 shows the bearing cap of Figure 1 in plan view of the clamping surfaces.
    Fig. 4 shows the bearing cover of Figure 1 in an oblique view.
    FIG. 5 shows a detail of the bearing cover according to FIG. 1;
    6 shows another embodiment variant of a bearing cover in a top view of the clamping surfaces;
    FIG. 7 shows a detail of the bearing cover according to FIG. 6;
    8 shows a further detail of the bearing cover according to FIG. 6.
    To begin with, 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, and the disclosures contained in the entire description can be applied analogously to the same parts with the same reference numerals or the same component names. The location information selected in the description, e.g. above, below, to the side, etc., referring to the figure described and illustrated immediately, and if the position is changed, these are to be applied accordingly to the new position.
    Fig. 1 shows a split bearing arrangement 1, as used for example in a reciprocating piston machine. This bearing arrangement 1 comprises a bearing bracket 2 and a bearing cover 3, which together form a bearing seat 4 for a plain bearing, for example for a crankshaft. The bearing chair 2 has a counter clamping surface 5 at its two distal end regions and the bearing cover 3 has the counter clamping surfaces 5/20 at its two end regions
    N2017 / 14100-AT-00 opposite clamping surfaces 6. Protruding beyond the clamping surfaces 6 there is at least one projection 7 per clamping surface 6 which, in the assembled state of the bearing arrangement 1, is pressed into the counter clamping surface 5 of the bearing block 2 by clamping the bearing block 2 and the bearing cover 3 together. A recess in the form of a continuous bore 8 is arranged in each case in the distal end regions for tensioning the bearing chair 2 with the bearing cover 3. A bolt, not shown, is accommodated in this bore 8. With appropriate nuts that are screwed onto the bolts, the bracing can be achieved. As an alternative to this, this hole 8 can also not be made continuously in the bearing bracket 2 or in the bearing cover 3, but rather as a blind hole with an internal thread.
    There is also the possibility, as is indicated by dashed lines in FIG. 1, that the distal end regions of the bearing cover 3 are designed in the direction of the bearing bracket 2 and overlap it laterally. The reverse configuration is also possible, that is to say that the bearing cover 3 is partially received in a recess in the bearing chair 2.
    At least the projections 7 consist of a material that is harder than the material of the bearing block 2 in the area of the counter clamping surface 5, so that these projections 7 can be pressed into the counter clamping surface 5 by compressing and clamping the bearing block 2 and bearing cover 3. However, the entire bearing cover 3 is preferably made from this harder material. For example, the bearing cover 3 can be made of an iron material and the bearing chair 2 can be made of a light metal. In particular, the bearing cover 3 is made of a sintered iron material.
    However, there is also the possibility of the reverse design, in which the bearing bracket 2 is harder, that is to say the bearing cover 3 or the projections 7.
    The plain bearing can be produced by directly coating the corresponding surfaces of the bearing seat 4 of the bearing block 2 and the bearing cover 3, it is also possible to use the plain bearing half-shells known per se, or the plain bearing can also be designed differently geometrically.
    / 20th
    N2017 / 14100 AT-00
    As can be seen more clearly from FIGS. 2 to 5, which show the bearing cover 3 in different representations, the projections 7
    2 to 5, a variant of the bearing cover 3 is shown in different views.
    In this embodiment variant, the projections 7 projecting beyond the clamping surfaces 6 have a round, in particular circular, cross-sectional shape. The cross-sectional shape of the projections 7 is viewed in a top view of the clamping surface 6. In particular, the projections 7 are spherical segment-shaped, particularly preferably hemispherical, as can be seen from FIG. 5, which shows a section through a projection 7 along the line V-V in FIG. 3. A circular cross-sectional shape is thus obtained with each section through the projections parallel to the clamping surface 6.
    In the specifically illustrated embodiment of the bearing cover 3, a total of four projections 7 are present, two being arranged per clamping surface 6. However, this number of projections 7 is not to be understood as limiting, even if it is a preferred number. There can generally be between one and twenty projections 7 per clamping surface 6 of the bearing cover 3. A plurality of protrusions 7 can in particular be arranged or formed when the protrusions 7 are also used for radial force transmission.
    6 to 8, a further embodiment variant of the bearing cover 3 is shown in different views.
    In contrast to the embodiment of the bearing cover 3 according to FIGS. 2 to 5, in this embodiment the projections 7 projecting over the clamping surfaces 6 have a rounded, convex cross-sectional shape, again in plan view of the clamping surfaces 6 of the bearing cover 3.
    The term “rounded convex” is understood to mean a geometric cross-sectional shape if, for any two points that lie within the cross-sectional shape, their connecting path always lies entirely in the cross-sectional shape.
    / 20th
    N2017 / 14100 AT-00
    However, there is the possibility that transitions from the clamping surface 6 to the projections 7 are concavely curved. However, the rest of the projections 7 also have the rounded convex cross-sectional shape in this case.
    The projections 7 are preferably ellipsoidal segment-shaped, as can be seen from the overview of FIGS. 6 to 8. 7 shows a section through a projection 7 along line VII-VII in FIG. 6 and FIG. 8 shows a section through a projection 8 along line VIII-VIII in FIG. 6.
    However, the at least one projection 7 can also have another round, convex cross-sectional shape (viewed in plan view of the clamping surface 6), for example, it can be cam-shaped or egg-shaped, etc.
    For the sake of completeness, it should be pointed out that the following explanations are valid for all design variants of the bearing cover 3, even if they are only explained using one design variant of the bearing cover 3 and unless something to the contrary is expressly stated.
    As already explained above, the bearing cover in the area of the clamping surfaces 6 each has at least one bore 8. These bores 8 subdivide the clamping surfaces 6 into a clamping surface part 10 which is closer to a bearing receiving surface 9 of the bearing holder 4 (FIG. 1) and a clamping surface part 11 which is further away therefrom (each shown in FIG. 3). The closer clamping surface parts 10 are accordingly formed between the bore 8 and the bearing receiving surface 9.
    In the two embodiment variants shown in FIGS. 2 to 8, the projections 7 are formed or arranged exclusively on the closer clamping surface parts 10, that is to say between the bore 8 and the bearing receiving surface 9.
    However, there is also the possibility that the projections 7 exclusively on the more distant clamping surface parts 11 on the bearing receiving surface 4/20
    N2017 / 14100-AT-00 facing away from the holes 8 are arranged, as can be seen from Fig. 1.
    In addition, the projections can be arranged on all clamping surface parts 10, 11.
    As can be seen in particular from FIGS. 5, 7 and 8, it can be provided according to another embodiment variant of the bearing cover that a transition from the clamping surface 6 to the projection 7 is provided with a rounding 12, that is to say it is rounded. The radius of the curve 12 can be selected from a range from 0.02 to 0.5.
    According to an embodiment variant, it can be provided that the rounding 12 has a plurality of radii, all of which are preferably selected from the range mentioned above for the radius of the rounding 12.
    According to another embodiment variant of the bearing cover 3, it can also be provided that the projection 7 or the projections 7 have a diameter 13 of at least 0.2 mm and a maximum of 4 mm, in particular between at least 0.2 mm and a maximum of 2 mm or between at least 1 mm and a maximum of 2 mm. The diameter 13 always means the maximum diameter 13, that is to say the diameter 13 which is the largest per projection 7. 6 to 8, the diameter 13 corresponds to the diameter that defines the enveloping circle with which the cross section of the projection 7 is then enveloped straight onto the clamping surface 6, that is to say the maximum longitudinal dimension of the elliptical cross-sectional shape.
    In the case of rounded convex cross-sectional shapes of the projections 7, the dimension of the cross-section in the direction perpendicular to the diameter 13 and in a plane with the diameter 12 is preferably smaller than the diameter 13. In particular, the diameter 13 can be two to eight times larger than that said dimension.
    The projections 7 can have a height 14 above the clamping surface 6, which is selected from a range from 0.2 mm to 1 mm.
    / 20th
    N2017 / 14100 AT-00
    The projections 7 can be arranged at a distance 15 from the start of the bearing receiving surface 9, which is at least 25% of the maximum diameter 13 and a maximum of 300% of the maximum diameter 13, in particular at least 50% of the maximum diameter 13 and a maximum of 150% of the maximum diameter 13, of the respective projection 7. The distance 15 is determined by the projection 7 in the direction perpendicular to the bearing receiving surface 4, as can be seen from FIGS. 3 and 6.
    According to a further embodiment variant of the bearing cover 3, not shown, it can be provided that at least one further elevation is formed on the surface of the projection 7.
    In general, all the projections 7 of a bearing cover 3 can be made the same. However, it is also possible that 5 projections 7 with different cross-sectional shapes are arranged per bearing cover 3 or 5 clamping surfaces or with the same cross-sectional shape with a position shift, in order to improve or simplify the correct assembly of bearing cover 3 and bearing bracket 2 after a separation.
    The projections 7 are preferably formed in one piece with the rest of the bearing cover 7, that is to say made of the material of the bearing cover 3 and at the same time as the rest of the bearing cover 3.
    It is further possible that depressions are formed in the clamping surfaces 6 around the projections 7, in particular groove-shaped depressions. The pressing of the projections 7 into the counter clamping surfaces 5 can thus be simplified.
    Although it has always been assumed in the foregoing that the projections 7 are only present on the clamping surfaces 6 of the bearing cover 3, it can also be provided that the projections 7 are formed exclusively on the counter-clamping surfaces 5 of the bearing chair 2. Design variants of the bearing arrangement can also be provided in which the / 20
    N2017 / 14100 AT-00
    Projections 7 are arranged or formed both on the clamping surfaces 6 and on the counter clamping surfaces 5.
    It can further be provided that the bearing cover 3, following the bearing receiving surface 9 and following the cross-sectional shape of the bearing receiving surface 9, has a reinforcing web 16, as shown in FIG. 4. The reinforcing web 16 can also have a varying height 17, viewed perpendicularly to the bearing receiving surface 4, the greatest height 17 being formed in the region of half the angular coverage of the bearing receiving surface 4.
    The reinforcing web 16 can also be formed above the clamping surfaces 6.
    Furthermore, a transition from the reinforcing web 16 above the clamping surfaces 6 to the reinforcing web 16 above the bearing receiving surface 4 can be provided with a rounding.
    The exemplary embodiments show possible design variants of the bearing cover 3, it being noted at this point that various combinations of the individual design variants with one another are also possible.
    For the sake of order, it should finally be pointed out that, for a better understanding of the structure of the bearing arrangement 1 or the bearing cover 3, these have not necessarily been shown to scale.
    / 20th
    N2017 / 14100 AT-00
    LIST OF REFERENCE NUMBERS
    bearing arrangement
    bearing block
    bearing cap
    bearing seat
    Against clamping surface
    clamping surface
    head Start
    drilling
    Bearing support surface
    Clamping surface member
    Clamping surface member
    curve
    diameter
    height
    distance
    strengthening web
    Height / 20
    N2017 / 14100 AT-00
    权利要求:
    Claims (8)
    [1]
    claims
    1. Bearing cover (3) for a split bearing arrangement (1) which, in addition to the bearing cover (3), comprises a bearing bracket (2), the bearing cover (3) having a clamping surface (6) which, in the assembled state, of the bearing arrangement (1) a counter clamping surface (5) of the bearing bracket (2), and wherein at least one projection (7) is formed on the clamping surface (6) and protrudes over it, which can be pressed into the counter clamping surface (5) of the bearing bracket (2), characterized that the at least one projection (7) has a round or rounded convex cross-sectional shape in plan view of the clamping surface (6).
    [2]
    2. Bearing cover (3) according to claim 1, characterized in that the at least one projection (7) is spherical or ellipsoid segment-shaped.
    [3]
    3. Bearing cover (3) according to claim 1 or 2, characterized in that a recess is formed in the clamping surface (6), the projection (7) being arranged between this recess and a bearing receiving surface (9) of the bearing cover (3).
    [4]
    4. Bearing cover (3) according to one of claims 1 to 3, characterized in that a transition from the clamping surface (6) to the projection (7) is rounded.
    [5]
    5. Bearing cover (3) according to one of claims 1 to 4, characterized in that the projection (7) has a diameter (13) of at least 0.2 mm and a maximum of 4 mm.
    [6]
    6. bearing cover (3) according to claim 5, characterized in that the projection (7) at a distance (15) to the beginning of the bearing receiving surface (9)
    13/20
    N2017 / 14100-AT-00 is arranged, which is at least 25% of the maximum diameter (13) and a maximum of 300% of a maximum diameter (13) of the projection (7).
    [7]
    7. Bearing cover (3) according to one of claims 1 to 5, characterized in that at least one further elevation is formed on the surface of the projection (7).
    [8]
    8. Bearing arrangement (1) with a bearing cover (3) and an adjacent bearing bracket (2), characterized in that the bearing cover (3) is formed according to one of claims 1 to 7.
    14/20
    N2017 / 14100 AT-00
    Miba Sinter Austria GmbH
    15/20
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    引用文献:
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    DE69713764T2|1996-05-03|2003-02-06|Gkn Sinter Metals Germantown I|ACCURATELY RE-ADJUSTABLE BEARING COVER|
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    DE3533759A1|1985-09-21|1986-04-30|Harald 4630 Bochum Schulze|Sliding bearing for radial, axial and tilted loading consisting of a single undivided outer part and an undivided inner part enclosed rotatably in the latter, and a method for the production of this bearing from metal|
    US5387472A|1992-05-20|1995-02-07|Nelson Metal Products Corporation|Mated molded parts assembly and method for making same|
    DE19546676A1|1995-12-15|1997-06-19|Schaeffler Waelzlager Kg|Bearing housing for accommodation of roller bearing outer running ring|
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    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
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    US16/056,640| US10400816B2|2017-09-15|2018-08-07|Bearing cover|
    DE102018006376.4A| DE102018006376A1|2017-09-15|2018-08-13|bearing cap|
    CN201810931540.XA| CN109505870A|2017-09-15|2018-08-16|Bearing cap|
    BR102018068730-1A| BR102018068730A2|2017-09-15|2018-09-14|MANCAL COVER AND BEARING ARMOR|
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