• 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 toothed wheel (1) comprising a first, radially inner ring element (2) and a second, radially outer ring element (3), wherein the second, radially outer ring element (2) has an outer toothing (5) and the radially inner ring element (3). 2) a plurality of radially outwardly projecting first projections (9), and wherein between the first, radially inner ring member (2) and the second, radially outer ring member (3) elastomeric elements (20) are arranged. The second ring element (3) has a plurality of second projections (11) projecting radially inwards, between which recesses (13) are formed, into which the first projections (9) of the first ring element (2) protrude, wherein in the circumferential direction (10 ) the first projections (9) on one or both sides to form gaps (18, 19) spaced from the second projections (11) are arranged, wherein in each gap (18, 19) an elastomeric element (20) is arranged, which neither with the first, radially inner ring element (2) is still connected to the second, radially outer ring element (3).
    公开号:AT520740A4
    申请号:T50147/2018
    申请日:2018-02-15
    公开日:2019-07-15
    发明作者:
    申请人:Miba Sinter Austria Gmbh；
    IPC主号:
    专利说明:

    Summary
    The invention relates to a gearwheel (1) comprising a first, radially inner ring element (2) and a second, radially outer ring element (3), the second, radially outer ring element (2) having external teeth (5) and the radially inner ring element ( 2) have a plurality of radially outwardly projecting first projections (9), and elastomer elements (20) are arranged between the first, radially inner ring element (2) and the second, radially outer ring element (3). The second ring element (3) has a plurality of radially inwardly projecting second projections (11), between which recesses (13) are formed, into which the first projections (9) of the first ring element (2) project, in the circumferential direction (10 ) the first projections (9) are arranged on one side or on both sides to form gaps (18, 19) spaced apart from the second projections (11), an elastomer element (20) being arranged in each gap (18, 19), which neither the first, radially inner ring element (2) is still connected to the second, radially outer ring element (3).
    Fig. 1
    1.22
    N2017 / 37600 AT-00
    The invention relates to a gearwheel comprising a first, radially inner ring element, a second, radially outer ring element and optionally at least one cover element, the second, radially outer ring element having external teeth and the radially inner ring element having a plurality of radially outwardly projecting first projections, and wherein elastomer elements are arranged between the radially inner ring element and the radially outer ring element, and the gear wheel has an axial direction, a radial direction and a circumferential direction.
    In order to avoid vibration excitation when transmitting torque by means of gearwheels, it is known from the prior art to use elastically deformable elements. For example, AT 501 915 A4 describes a device for torsionally elastic torque transmission between a shaft and a gearwheel mounted on the shaft, forming a ring gear and a hub, with two coupling parts which are non-rotatably assigned to the shaft and the ring gear and which project from one another and have claws which are offset from one another have, and arranged between the claws, elastomeric damping bodies, wherein the two coupling parts are supported only in the circumferential direction via the damping body and the sprocket is rigidly supported by the hub in the radial direction in relation to the shaft. Since the gap between the claws of the two coupling parts is filled with an elastomeric material, torsional vibrations occurring between the ring gear and the hub are damped by the elastomeric intermediate layer between the mutually opposite flanks of the interlocking claws. Due to the relentless mounting of the ring gear in the radial direction, any that occur
    2.22
    N2017 / 37600-AT-00 additional vibrations avoided, which can have a negative impact on the tooth mesh. However, this gear requires a relatively large amount of space.
    DE 10 2009 058 378 A1 discloses a toothing arrangement with a first gearwheel and with a second gearwheel which is in meshing engagement with the first gearwheel. The first gear comprises an inner ring with an axis of rotation (A); an outer ring, which is arranged coaxially to the axis of rotation (A) of the inner ring and has an external toothing in which the second gear engages with a counter-toothing, the engagement between the first gear and the second gear taking place exclusively via the outer ring, at least one elastic element which between the inner ring and the outer ring is arranged, the outer ring being supported radially with respect to the inner ring via the at least one elastic element, and wherein in a load-free state in which no torque is transmitted between the first gear and the second gear, the external toothing and counter toothing are radially elastic to one another are biased or jammed. The disadvantage here is that the elastic element is subjected to great stress and the entire gear fails in the event of cracks in the elastic element.
    Other gears of this type, in which a hub part is connected to a ring gear via an elastic element, for which purpose the elastic element is vulcanized, are known from the publications AT 514 590 A4, AT 516 397 A4 and AT 514 570 A4.
    The present invention has for its object to provide an improved damped gear.
    The object of the invention is achieved in the gear mentioned at the outset in that the radially outer ring element has a plurality of radially inwardly projecting second projections, recesses being formed between these second projections, into which the first projections of the first, radially inner ring element project, wherein the first projections are narrower in the circumferential direction, that is to say the recesses between the second projections,
    3.22
    N2017 / 37600-AT-00 so that in the circumferential direction the first projections are arranged on one side or on both sides to form gaps spaced from the second projections, wherein an elastomer element is arranged in each gap, which neither with the first, radially inner ring element nor with the second radially outer ring element is connected.
    The advantage here is that the elastomer elements in the event of damage, e.g. Cracks in the elastomer, the functionality is still given, and thus the gear has a higher reliability. Even if individual or all elastomer elements are completely eliminated, the functionality of the gear remains intact. Since the individual elastomer elements are only inserted into the gaps mentioned, the vulcanization process is also dispensed with, as a result of which the manufacture of the gearwheel can be simplified. In addition, the gear is relatively simple and can be easily adapted to different diameters, since the elastomer elements are not connected to one another, but rather are arranged as individual elements. In addition, a gearwheel can thus be made available that has low stresses or small expansions in the otherwise critical elastomer components.
    According to a preferred embodiment variant of the gear wheel, it can be provided that the elastomer elements are longer in the axial direction than the recesses between the second projections of the radially outer ring element, viewed in the same direction. It is thus possible to insert the elastomer elements more easily into the gaps between the first and second projections of the first and second ring elements, in particular if they are made with a smaller width than the gaps viewed in the same direction.
    This simpler usability of the elastomer elements can be supported if the elastomer elements have at least one outwardly curved side surface and / or if the elastomer elements have a recess in at least one end face pointing in the axial direction.
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    According to a further embodiment variant of the gear wheel, it is preferably provided that the elastomer elements are prestressed in the axial direction. A relatively high stiffness of the gearwheel can thus be achieved, which can be adjusted via the degree of hardness of the elastomer used and the size of the axial preload. The above-mentioned design variants of the gearwheel with the greater length in the axial direction and / or the curved side face and / or the depression in the end face have a supporting effect, since this not only simplifies the production of the preload, but also the gearwheel rigidity via that during preloading displaced elastomer volume can be adjusted.
    The elastomer elements are preferably preloaded with the cover element when assembling the gear, since this means that no further components are required for the gear.
    For better support of the cover element, the first, radially inner ring element in a further embodiment variant of the gear wheel can have a ring web projecting in the axial direction. It is thus possible for the cover element to be connected exclusively to the second, radially outer ring element, as a result of which the assembly of the gearwheel can be simplified.
    It can further be provided that edges of the elastomer elements are provided with a rounding, as a result of which the elastomer elements are subject to a reduced risk of damage during axial pretensioning. In addition, the insertion of the elastomer elements can also be made easier.
    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:
    Figure 1 is a gear in an exploded view and in an oblique view.
    Figure 2 shows the two ring elements of the gear of Figure 1 in the assembled state.
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    N2017 / 37600 AT-00
    3 shows the two ring elements of the gearwheel according to FIG. 1 in the assembled state and with inserted elastomer elements;
    4 shows an elastomer element in an oblique view;
    Fig. 5, the gear of Fig. 1 in the assembled state and in
    Tilt.
    In the 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, 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.
    1 shows a variant of a gear 1. 2 to 3 each show parts of this gear 1.
    The gear 1 comprises a first, radially inner ring element 2, a second, radially outer ring element 3 and a cover element 4. The first, radially inner ring element 2 can also be referred to as a hub part and the second, radially outer ring element 3 as a ring gear, since that serves the first, radially inner ring element 2 for receiving a shaft or the like, not shown, and the second, radially outer ring element 3 has an external toothing 5. Via this external toothing 4, the gearwheel 1 can be in meshing engagement with another gearwheel, for example a gearwheel gear, in order to transmit torque.
    The first, radially inner ring element 2 is arranged radially below the second, radially outer ring element 3, in particular viewed in a radial direction 6 entirely below the external toothing 5. Preferably, the first, radially inner ring element 2 is entirely within the second, radially outer ring
    6.22
    N2017 / 37600-AT-00 element 3, although a hub area 7 of the first, radially inner ring element 2 can be wider in an axial direction than the second, radially outer ring element 3.
    The first, radially inner ring element 2 and / or the second, radially outer ring element 3 preferably consist of a metallic material, for example of a steel, preferably of a sintered material, for example a sintered steel. However, other metallic materials can also be used for the first, radially inner ring element 2 and / or the second, radially outer ring element 3, the first, radially inner ring element 2 and / or the second, radially outer ring element 3 also comprising at least two different metallic materials can exist. It is also conceivable that the first, radially inner ring element 2 and / or the second, radially outer ring element 3 consist of at least one polymeric plastic.
    The first, radially inner ring element 2 has a plurality of first projections 9 which project outward in the radial direction 6. These first projections 9 are arranged on the radially outer circumferential surface of the hub part 7, in particular connected to it in one piece. When viewed in the axial direction 8, the first projections 9 have an at least approximately trapezoidal cross section, in particular that of an isosceles trapezoid, the short base side being arranged on the hub part 7. These first projections 9 are preferably arranged in a circumferential direction 10 of the gear 1 evenly distributed over the circumference of the hub part 7.
    Furthermore, the first, radially inner ring element 2 has a recess running in the axial direction 8, in particular a bore. This allows the first, radially inner ring element 2 on the shaft, not shown, or another element such as an unbalance element. The unbalance element can in turn have a recess, in particular a bore, for arrangement on a shaft.
    7.22
    N2017 / 37600 AT-00
    The second, radially outer ring element 3 has a plurality of second projections 11 projecting in the radial direction 6, which, in contrast to the first projections 9, are arranged not projecting outwards but projecting inwards. The second projections 11 are arranged on a lower circumferential surface 12 of the second, radially outer ring element 3, in particular connected to it in one piece. When viewed in the axial direction 8, the second projections 11 likewise have an, at least approximately, trapezoidal cross section, in particular that of an isosceles trapezoid, the long base being arranged on the lateral surface 11. The second projections 11 thus taper in the radial direction 6 from the outside inwards, that is to say in the opposite direction to the first projections 9. Preferably, the second projections 11 are also uniformly distributed in the circumferential direction 10 of the gear 1 over the circumference of the lateral surface 12 ,
    The first projections 9 and the second projections 11 preferably have the same cross-sectional shape (rotated by 180 °).
    For the sake of completeness, it should be mentioned that the base sides of the trapezoidal cross section of the first and second projections 9, 11 are not straight, but curved, which is due to the round shape of the gear wheel 1.
    Recesses 13 are formed between the second projections 11 in the circumferential direction. Likewise, recesses 14 are formed between the first projections in the circumferential direction 10. The arrangement of the recesses 13, 14 is such that the first projections 9 are at least partially, in particular entirely, received in the recesses 13 between the second projections 11 and the second projections 11 in the recesses 14 between the first projections 9. as can be seen from, for example, FIG. 2. By “in its entirety” it is meant that the first projections 9 are slightly spaced from the lateral surface 12 and the second projections 11 from the hub part 7, so that the relative rotatability of the first ring element 2 to the second ring element 3 in the circumferential direction 10 is possible.
    8.22
    N2017 / 37600 AT-00
    The first projections 9 are narrower in the circumferential direction 10, ie they have a shorter length 15 (FIG. 2) than the recesses 13 in the circumferential direction 10. The length 15 is measured at the same radial height as the length of the recesses, to take into account the widening cross section of the first protrusions.
    Due to the narrower first projections 9 in the circumferential direction 10, the first projections 9 are arranged at a distance from side surfaces 16, 17 which extend in the circumferential direction 10 and extend in the axial direction 8, as a result of which gaps 18, 19 are formed, as best shown in FIG. 2 can be seen. In addition to each first projection 9, a gap 18 and a gap 19 are formed in the circumferential direction 10, so that the gaps 18, 19 are formed on both sides of the first projections 9. In this embodiment variant of the gear wheel 1, the first projections 9 therefore do not rest on either of the two side surfaces 16, 17 of the second projections 11.
    An elastomer element 20 is arranged in each of these gaps 18, 19, as can best be seen from FIG. 3. The elastomer elements 20 are thus arranged between the first, radially inner ring element 2 and the second, radially outer ring element 3. The elastomeric elements 20 are loosely inserted into the gaps 18, 19, i.e. that they are neither connected to one another nor to the first, radially inner ring element 2 and the second, radially outer ring element 3, that is to say in particular they are not glued on or vulcanized on.
    Such an elastomer element 20 is shown in FIG. 4.
    The elastomer element 20 consists at least partially of a rubber-elastic material, for example of an (X) NBR ((carboxylated) acrylonitrile butadiene rubber), HNBR (hydrogenated nitrile rubber), a silicone rubber (VMQ), NR (natural rubber), EPDM (ethylene-propylene-diene rubber), CR (chloroprene rubber), SBR (styrene-butadiene rubber) etc., whereby here again material mixtures can be used.
    9.22
    N2017 / 37600 AT-00
    By "at least partially" it is meant that in the elastomer element 20 e.g. Stiffening elements, e.g. Fibers and / or threads, for example made of metal, plastic, natural fibers, etc., or rods, etc. can be incorporated in order to change or adjust their stiffness. The elastomer element 20 can also have regions made of rubber-elastic materials that differ from one another. However, the elastomer element 20 preferably consists exclusively of a rubber-elastic material.
    The elastomer element 20 of this embodiment variant of the gear 1 is at least approximately cuboid. This shape is made possible by the described shape of the first and second projections 9, 11.
    To simplify assembly of the elastomer elements 20, it can be provided that a further cover element 21 is arranged on the first, radially inner ring element 2 or preferably on the second, radially outer ring element 3 and is connected to it, for example in a form-fitting and / or force-fitting and / or manner cohesively. This further cover element 21 can also be formed in one piece with the first, radially inner ring element 2 or preferably on the second, radially outer ring element 3. The further cover element 21 covers the recesses 13 in the axial direction 8 on one side of the gear 1 at least partially, in particular entirely, so that the elastomer elements 20 can be placed on this further cover element 21 during assembly.
    When all of the elastomeric element 20 is assembled, i.e. are inserted, they are at least partially, preferably entirely, covered on the second side in the axial direction 8 with the cover element 4, as shown in FIG. 5. The cover element 4 can be connected to the first, radially inner ring element 2. However, it is preferably connected to the second, radially outer ring element 3 according to one embodiment variant of the gearwheel 1. Depending on the application of the gear 1, the connection can be made releasably, for example with screws, or integrally, for example by welding.
    10/22
    N2017 / 37600 AT-00
    In a simpler variant of the gearwheel 1, only the gaps 18 or only the gaps 19 can be formed between the first and second projections 9, 11. The elastomer elements 20 are therefore present on only one of the two side surfaces 16, 17 of the second projections 11. On the other hand, the first and second projections can be at least approximately in contact with one another. Although this embodiment variant is not preferred, it can nevertheless be used in applications in which the gearwheel 1 is only operated in one direction of rotation.
    The trapezoidal cross-sectional shape of the first and second protrusions 9, 11 described above is the preferred one. However, the first projections 9 and / or the second projections 11 can also have a different shape, as long as it is ensured that the elastomer elements 20 can be inserted on one or both sides of the projections 9, 11, as described above.
    In the illustrated embodiment variant of the gearwheel, all elastomer elements 20 are of the same thickness when viewed in the circumferential direction 10. However, there is also the possibility that the elastomer elements 20 have different thicknesses in this direction. For example, every second elastomer element 20 can be made thinner than the remaining elastomer elements 20. It is therefore possible to use thicker elastomer elements 20 for one direction of rotation of the gearwheel 20 and thinner ones for the second direction of rotation of the gearwheel. Likewise, elastomer elements 20 of different hardness can be used in these two directions, for example hard in a first direction and, in comparison, softer in the second direction. In addition, an asymmetrical distribution of mutually different elastomer elements 20, for example elastomer elements 20 of different hardness, over the circumference of the gearwheel 1 is also possible, in order to obtain radial radial stiffness depending on the direction.
    As stated above, the gearwheel 1 can have the first, radially inner ring element 2, the second, radially outer ring element 3, at least one connecting element and a plurality of elastomer element 20. The gear 1 can also consist only of these components.
    11/22
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    It is possible for the elastomer elements 20 to have a length in the axial direction 8 which corresponds to the length of the gaps 18, 19 in this direction. According to a preferred embodiment variant of the gear wheel 1, it can be provided that the elastomer elements 20 are longer in the axial direction 8 than the gaps 18, 19 and thus the recesses 13 between the second projections 11 of the second, radially outer ring element 3, viewed in the same direction , Among other things, it can be achieved, in particular, that the elastomer elements 20 are squeezed in the axial direction 8 and thus can be prestressed more easily in this direction, as can be provided according to a further embodiment variant of the gear wheel 1. In other words, the elastomer element 20 can be prestressed by compression in the axial direction 8.
    In order to support or simplify this compression of the elastomer elements 20, it can be provided according to a further embodiment variant of the gear wheel 1 that the elastomer elements 20 have at least one outwardly curved side surface 22, as can be seen in particular from FIG. 4. The side surface 22 is in particular convexly curved.
    The curvature can be formed on the side surface 22 pointing in the axial direction 8. These two side surfaces 22 of the elastomer elements 20 are preferably curved, as shown in FIG. 4.
    Alternatively or additionally, the further side surfaces and / or the bottom surface and / or the top surface of the elastomer elements 20 can also be curved.
    Although the curvature of at least the side surface (s) 22 is preferred outwards, at least some of the outer surfaces of the elastomer elements 20 can be curved inwards. In particular, this curvature can be made concave.
    According to a further embodiment variant of the gear wheel, which is also shown in FIG. 4, the elastomer elements can be in at least one end face 23 pointing in the axial direction 8, in particular in both in the axial direction 8
    12/22
    N2017 / 37600-AT-00 facing end surface 23, have a recess 24. The compressibility of the elastomer elements 20 can thus also be influenced or simplified.
    The end faces 23 correspond to the above-mentioned bottom surface and top surface of the elastomer elements 20.
    As already stated, the elastomer elements 20 are preferably installed in the gear 1 in the axial direction 8 in a prestressed manner. The bias can be made accordingly. The prestressing of the elastomer elements 20 is preferably formed in the axial direction 8 when the gear wheel 1 is assembled by fastening the cover element 4.
    According to a further embodiment variant of the gearwheel 1, it can be provided that the first, radially inner ring element 2 on the hub part 7 has an annular web 25 projecting in the axial direction, as can be seen in particular from FIG. 1. The ring web 25 is preferably placed in such a way that the cover element 4 can be supported on the gearwheel 1 in the radial direction 6 in the assembled state thereof. Alternatively or additionally, the cover element 4 can be supported via the first and / or second projections 9, 11.
    The annular web 25 preferably has a height in the axial direction 8 which corresponds to the thickness of the cover element 4 in this direction.
    Instead of the ring web 25, other geometric shapes, such as a square or a polygon.
    It can further be provided that edges of the elastomer elements 20 are rounded, as can be seen in particular in FIG. 4.
    Apart from the at least one curvature and / or the at least one depression 24, the shape of the elastomer elements 20 essentially depends on the shape of the gaps 18, 19. However, the shape of the elastomer elements can also be
    13/22
    N2017 / 37600-AT-00 can be specified, for example if the elastomer elements 20 are to have a certain mass, and the gaps 18, 19 are adapted to this shape.
    Furthermore, the displacement of the elastomer elements 20 can be influenced via the (cross-sectional) shape of the first projections 9 and / or the second projections 11 and the behavior of the gear wheel 1 per se can thus be changed or adjusted.
    It can also be provided that a radial play is provided between the ring elements 2 and possibly including the cover element 4 and the ring element 3. The radial play can be selected to be different in size depending on the requirements.
    In the embodiment variants of the gearwheel 1 mentioned above, instead of the at least one cover element 4, a shoulder or a radial projection on the ring element 3 below the external toothing 5 between the projections 11 and / or between the first projections 9 or projections extending in the circumferential direction 10 be arranged on the first and / or second projections 9, 11.
    The exemplary embodiments show or describe possible design variants, wherein 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, the gear 1 is not necessarily drawn to scale.
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    N2017 / 37600 AT-00
    LIST OF REFERENCE NUMBERS
    gear
    ring element
    ring element
    cover
    external teeth
    radial direction
    hub part
    axially
    head Start
    circumferentially
    head Start
    lateral surface
    recess
    recess
    length
    side surface
    side surface
    gap
    gap
    elastomer element
    cover
    side surface
    face
    deepening
    ring land
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    权利要求:
    Claims (8)
    [1]
    claims
    1. gear (1) comprising a first, radially inner ring element (2), a second, radially outer ring element (3) and optionally at least one cover element (4), the second, radially outer ring element (2) having external teeth (5) and the radially inner ring element (2) has a plurality of radially outwardly projecting first projections (9), and wherein elastomer elements (20) are arranged between the first, radially inner ring element (2) and the second, radially outer ring element (3), and the gear (1) has an axial direction (8), a radial direction (6) and a circumferential direction (10), characterized in that the second, radially outer ring element (3) has a plurality of radially inwardly projecting second projections (11), wherein recesses (13) are formed between these second projections (11), into which the first projections (9) of the first, radially inner ring element (2) protrude, the first projections (9) narrowing in the circumferential direction (10) they are, that is, the recesses (13) between the second projections (11), so that in the circumferential direction (10) the first projections (9) are spaced on one or both sides to form gaps (18, 19) from the second projections (11) are arranged, in each gap (18, 19) an elastomer element (20) being arranged, which is neither connected to the first, radially inner ring element (2) nor to the second, radially outer ring element (3).
    [2]
    2. Gear (1) according to claim 1, characterized in that the elastomer elements (20) in the axial direction (8) are longer than the recesses (13) between the second projections (11) of the radially outer ring element (3), in the same Considered direction.
    [3]
    3. Gear (1) according to claim 1 or 2, characterized in that the elastomer elements (20) have at least one outwardly curved side surface (22).
    16/22
    N2017 / 37600 AT-00
    [4]
    4. Gear (1) according to any one of claims 1 to 3, characterized in that the elastomer elements (20) in at least one in the axial direction (8) facing end face (23) have a recess (24).
    [5]
    5. Gear (1) according to one of claims 1 to 4, characterized in that the elastomer elements (20) in the axial direction (8) are biased.
    [6]
    6. gear (1) according to claim 5, characterized in that the bias with the cover element (4) is made.
    [7]
    7. Gear (1) according to one of claims 1 to 6, characterized in that the first, radially inner ring element (2) has a ring web (25) projecting in the axial direction (8).
    [8]
    8. gear (1) according to one of claims 1 to 7, characterized in that edges of the elastomer elements (20) are provided with a curve.
    17/22
    N2017 / 37600 AT-00

    Miba Sinter Austria GmbH
    18/22

    19/22



    Miba Sinter Austria GmbH
    20/22
    claims
    1. gear (1) comprising a first, radially inner ring element (2), a second, radially outer ring element (3) and optionally at least one cover element (4), the second, radially outer ring element (2) having external teeth (5) and the radially inner ring element (2) has a plurality of radially outwardly projecting first projections (9), and wherein elastomer elements (20) are arranged between the first, radially inner ring element (2) and the second, radially outer ring element (3), and the gearwheel (1) has an axial direction (8), a radial direction (6) and a circumferential direction (10), the second, radially outer ring element (3) having a plurality of radially inwardly projecting second projections (11), between these second Projections (11) are formed in recesses (13) into which the first projections (9) of the first, radially inner ring element (2) protrude, the first projections (9) being narrower in the circumferential direction (10), that is to say the outside Trimmings (13) between the second projections (11), so that in the circumferential direction (10) the first projections (9) on one side or on both sides with gaps (18, 19) are spaced from the second projections (11), wherein in Each gap (18, 19) is arranged an elastomer element (20) which is neither connected to the first, radially inner ring element (2) nor to the second, radially outer ring element (3), and the elastomer elements (20) in the unloaded state in the axial direction (8) are longer than the recesses (13) between the second projections (11) of the radially outer ring element (3), viewed in the same direction, and the elastomer elements (20) in the axial direction (8) by compression in the Are biased axially, characterized in that the first and second projections (9, 11) have an at least approximately trapezoidal cross-section and the elastomer elements (20) are at least approximately cuboid t are.
    2. Gear (1) according to claim 1, characterized in that the elastomer elements (20) have at least one outwardly curved side surface (22).
    (LAST CLAIMS)
    21/22
    A2018 / 50147 AT-00
    3. Gear wheel (1) according to claim 1 or 2, characterized in that the elastomer elements (20) have a recess (24) in at least one end face (23) pointing in the axial direction (8).
    4. Gear (1) according to one of claims 1 to 3, characterized in that the bias with the cover element (4) is made.
    5. Gear (1) according to one of claims 1 to 4, characterized in that the first, radially inner ring element (2) has a ring web (25) projecting in the axial direction (8).
    6. gear (1) according to any one of claims 1 to 5, characterized in that edges of the elastomer elements (20) are provided with a curve.
    [LAST CLAIMS]
    22/22
    A2018 / 50147 AT-00
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    DE102018009330A1|2020-05-28|Gear drive
    AT523417B1|2021-08-15|gear
    AT521959B1|2020-07-15|gear
    同族专利:
    公开号 | 公开日
    DE102019103112A1|2019-08-22|
    AT520740B1|2019-07-15|
    CN110159730A|2019-08-23|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    US2764003A|1953-09-30|1956-09-25|Louis P Croset|Flexible couplings|
    DE1475519A1|1964-08-07|1969-05-22|Wellman Bibby Company Ltd|Flexible coupling|
    JPH0454347A|1990-06-25|1992-02-21|Suzuki Motor Corp|Balancer for engine|
    EP1396420A1|2002-08-27|2004-03-10|Yamaha Hatsudoki Kabushiki Kaisha|Saddle ride type vehicle torque damping device|
    DE10259519A1|2002-12-19|2004-07-01|Robert Bosch Gmbh|Gearboxes, in particular for electric hand machine tools|
    AT501915A4|2003-07-24|2006-12-15|Miba Sintermetall Gmbh|DEVICE FOR TORQUE-TORQUE TRANSMISSION BETWEEN A SHAFT AND A GEAR WHEEL CARRIED ON THE SHAFT|
    DE102005016558A1|2004-04-12|2005-11-03|Hitachi Koki Co., Ltd.|Electric tool and gear unit installed therein|
    DE102009058378A1|2009-12-15|2011-06-16|Getrag Ford Transmissions Gmbh|Teeth arrangement has two gear wheels, where former gear wheel is in teeth interference and has inner ring with axis of rotation and outer ring coaxially arranged to axis of rotation of inner ring|
    WO2013175209A1|2012-05-23|2013-11-28|Renold Plc|A flexible coupling|
    AT514570A4|2014-02-13|2015-02-15|Miba Sinter Austria Gmbh|gear|
    AT514590A4|2014-02-13|2015-02-15|Metaldyne Internat Deutschland Gmbh|gear|
    AT516397A4|2014-11-19|2016-05-15|Miba Sinter Austria Gmbh|gearing|
    DE102019125696B3|2019-09-24|2021-03-18|Schaeffler Technologies AG & Co. KG|Multi-part gear with integrated damping device and gear|
    DE102020200364A1|2020-01-14|2021-07-15|Robert Bosch Gesellschaft mit beschränkter Haftung|Damping element for shaft / hub connections and component assemblies|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    ATA50147/2018A|AT520740B1|2018-02-15|2018-02-15|gear|ATA50147/2018A| AT520740B1|2018-02-15|2018-02-15|gear|
    DE102019103112.5A| DE102019103112A1|2018-02-15|2019-02-08|gear|
    CN201910115237.7A| CN110159730A|2018-02-15|2019-02-15|Gear|
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