FR2890422A1 - COMPOSITE ASSEMBLY ASSEMBLY, PREFERABLY SEALING RING, AND METHOD FOR PRODUCING THE SAME - Google Patents

Abstract

The composite assembly assembly comprises a support body (1) to which is attached a disk-shaped component (6) and which is provided with a stamping (9) on one side. In order for the connection between the support body (1) and the disk-shaped component (6) to be optimal, the composite assembly assembly is made in such a way that the disk-shaped component (6) is provided with at least one counter-stamping (12) to at least partially compensate for the deformations caused by the realization of the stamping (9). As for its geometry and / or its shape and / or its depth, the counter-stamping can be designed in such a way that the deformations are at least largely canceled and that the disk-shaped component (6) remains flat. The composite assembly assembly is particularly suitable for sealing rings.

Description

The invention relates to a composite assembly assembly, preferably a

  sealing ring, which comprises at least one support body on which is fixed at least one disk-shaped component.

  It also relates to a method for its realization.

  Composite assembly assemblies are known in the form of sealing rings which comprise a support body to which a disk-shaped component is bonded as a sealing element.

  This sealing element is generally attached to the support body by means of an adhesive. The bonded junction of such assembly parts can not fully absorb the mechanical loads, such as dynamic or static forces, thermal expansion of at least one of the assembly partners, oscillations and vibrations, bending forces , tensile, shear and peel as well as pressure loads, only if the geometry and thickness of the glue layer are chosen correctly and accurately.

  Often, the sealing member has on its sealing side a reflux means which is made by stamping the sealing disc. The disadvantage here is that, after embossing the refluxing means, advantageously made of polytetrafluoroethylene, the sealing disc becomes bombable and becomes corrugated. The bulge and undulations can be so pronounced that one can no longer achieve a clean, exact and regular thickness of the glue layer.

  The underlying goal at. the invention is to develop a composite assembly assembly of the generic type and a generic type method such that the connection between the support body and the disk-shaped component is optimal.

  According to don, as far as the composite assembly assembly is concerned, this object is achieved by the fact that the support body or disk-shaped form carries with it the same effect. this composite assembly assembly, this objective is achieved by the fact that at least one housing, made in the form of stamping, is formed on the support body and / or on the disk-shaped component.

  The housing thus produced according to the invention by the stamping operation is filled with glue. When the disc-shaped component is assembled by bonding to the support body, thanks to the embodiment according to the invention, a thickness of the clean, exact and regular adhesive layer is obtained over the entire bonding surface. . Thanks to this, a very regular distribution of the stresses results and a very regular application of the forces in the operating situation.

  In a composite assembly assembly in which the disk-shaped component is provided on at least one side of at least one stamping, the deformations of the disk-shaped component caused by the stamping operation, that is, that is, when the reflux means is produced, are at least partially compensated by the fact that the disk-shaped component is provided with at least one counter-stamping as a housing. This counter-stamping can be designed, as to its geometry and / or its shape, and / or as to the depth of stamping, so that deformations are at least largely canceled. In this way, the disk-shaped component remains flat, so that it can be fixed perfectly on the support body.

  Advantageously, the counter-stamping has a depth less than the stamping.

  The depth of the counter-depth is less than the thickness of the support body, preferably the bottom of the support body, and / or the disk-shaped component.

  Advantageously, the counter-stamping depth is at least about 10% to about 20% of the thickness of the support body, preferably the bottom of the support body, and / or the shaped component. of disc.

  Advantageously, the radial extension of the counter-stamping is greater than the extension of the stamping of the disk-shaped component.

  Other features of the invention are apparent from the remainder of this patent application.

  The invention will be explained in more detail with the aid of a few embodiments illustrated in the drawings, in which: FIG. 1 shows an axial section of one half of the composite assembly assembly according to the invention; Figure 2 shows a disk-shaped element of the composite assembly assembly according to Figure 1, in axial section; Fig. 3 is a scale illustration of a view in the direction of arrow A in Fig. 2; Fig. 4 is a scale illustration of a view in the direction of arrow B in Fig. 2; Figures 5 to 8 are representations corresponding to Figures 1 to 4 of a second embodiment of a composite assembly assembly according to the invention; Figures 9 to 12 are representations corresponding to Figures 1 to 4 of a third embodiment of a composite assembly assembly according to the invention; FIGS. 13 to 16 are representations corresponding to FIGS. 1 to 4 of an embodiment of an assembly assembly, in which: FIG. 1 is a representation corresponding to FIG. FIG. 1 of a fifth embodiment of a composite assembly assembly according to the invention; FIG. 18 is a reduced scale representation of a view of the support body according to the arrow A in FIG. Figure 17, and Figures 19 to 22 illustrate two further embodiments of a composite assembly assembly according to the invention, corresponding to Figures 17 and 18.

  In what follows, various embodiments of composite assembly seals, which are preferably parts of sealing rings, will be described.

  In the embodiment of Figures 1 to 4, the composite assembly assembly comprises a support body 1 with an L-shaped axial section, which is made of metal or other hard material, in particular plastic . The support body 1 comprises a cylindrical casing 2, which is transformed in an arcuate manner into a bottom 3 which extends radially. This is provided with a central opening 4. If the composite assembly assembly is a sealing member, as in the illustrated embodiment, the shaft to be sealed then passes through the opening 4 of the bottom 3 of the support body.

  On the outer face 5 of the base 3 of the support body is fixed a disc 6, advantageously made of polytetrafluoroethylene and whose part which protrudes beyond the edge of the through opening 4 forms, in the case of a ring of sealing, a sealing lip which is sealingly applied to the shaft to be sealed. The disc 6 also has a central opening 7 through which the shaft to be sealed. In the mounting position of the sealing ring, the portion 8 of the disc 6 which protrudes radially is bent elastically inwards, so that it is applied under pre-tension to be sealed. In the unassembled situation of the 6 is located in a radial pl. The portion 8 of the disc which protrudes beyond the edge of the ore 4 is provided on its outer face with a reflux means 9 by means of which the fluid which, in a known manner, is returned in a known manner. the mounting position of the sealing ring, would have passed under the sealing lip é. The reflux means 9 may have any suitable design. In this embodiment, the reflux means 9, as seen in FIG. 4, is formed by a system of spiral grooves extending from the edge 10 of the opening 7 over a portion of the radial width This reflux means 9 is advantageously produced by a stamping operation in which the disk-shaped portion 8 is stamped in known manner by a stamping device. The depth of the reflux means 9 is approximately half the thickness of the disk 6 (FIG. 2).

  The embossing operation leads to the annular disc 6 becoming bombed and / or corrugated. Fixing the annular disk 6 against the outer face 5 of the bottom 3 of the support body would then pose difficulties, especially when the annular disk 6 is glued against the bottom 3 of the support body. In order to perfectly guarantee the fixing of the annular disk 6 on the bottom 3 of the support body, the annular disk 6 is provided with a housing 12 for glue, in a region radially outside the reflux means 9 and the opposite side 11, in the form of a counter-stamping. With this stamping operation in the opposite direction, the bulge and / or the corrugations are at least largely canceled, and preferably completely, so that the annular disk 6 is again flat and can then be fixed perfect against the outer face 5 of the bottom 3 of the support body, in particular by gluing. The housing 12 comprises at least one recess. More precisely, as shown in FIG. 3, the counter-stamping 12 is formed by concentric circles 14, which advantageously have the same distance with respect to each other and which have only a small thickness compared with the The counter-stamping 12 extends approximately from the radially outer end of the reflux means 9 to the radially outer edge 13 of the annular disc 6.

  The recesses of the counter-es 12 have a reetang section, (figure they or aileri which does not correspond, to about a tenth, the thickness of the disc anilui 6. The geometry and or ei depth of the counter-stamping 1 2 are selected sel Amplitude of the bulge 2890422 6 and / or corrugations after the stamping operation to achieve the reflux means 9. By adjusting the geometry, shape and stamping depth of counter-stamping 12, we can reduce optimally the annular disk 6 in its flat state after the realization of the reflux means 9.

  Then, the annular disk 6 is glued to the outer face 5 of the bottom 3 of the support body in the region of the counter-stamping 12. The glue 16 is received in the shallow recesses of the counter-stamping 12. Because of the counter-stamping 12, the annular disc 6 can be glued flat and flat against the bottom 3 of the support body.

  In the embodiment of FIGS. 5 to 8, the refluxing means 9 is made on the rear face of the annular disk 6 in a manner corresponding to the previous embodiment by a system of spiral grooves which extend from the edge 10 of the opening 7 of the annular disc 6. Correspondingly to the previous embodiment, the radial width of the reflux means 9 is less than half the radial width of the annular disc 6.

  On the opposite side 11 the annular disc 6 is provided with counter-stamping 12, which is formed by two recesses 14 and 15 of shallow depth, concentric with each other and at a short distance. Advantageously, the recesses 14 and 15 have the same width and they have a depth which corresponds to a range between about 10 and about 20% of the thickness of the annular disc 6. Again, thanks to counter-stamping 12, at least one compensates for the bulging and / or the corrugations of the annular disc 6 due to the embossing operation during the production of the reflux means 9. The glue 16 with which the annular disc 6 is fixed on the bottom 3 of the support body, is In FIG. 15, two concentric recesses 14 (FIG. 15) are connected by comparison with the narrow recesses 14 of the preceding embodiment, resulting in an optimum bonded connection between the annular disk 6 and the bottom 3 of the support body. two recesses 14 and 15 extend, as is apparent from FIGURE 5, over more than half of the radial width of the bottom 3 of the support body, as in the previous embodiment, by means of counter-stamping 12, one reaches a clean, exact and regular thickness of the adhesive layer on the whole of the bonding surface, since the adhesive 16 is in the recesses 14 and 15. Thanks to this, a distribution is ensured. regular constraints and regular application of forces in the operating situation.

  In the embodiment of Figures 9 to 12, the reflux means 9 of the annular disk 6 is again formed by a spiral groove system (Figure 12) which extends from the edge 10 of the opening 7 to less than half the radial width of the annular disc 6.

  The counter-stamping 12 on the other side 11 of the annular disc 6 is made identical to the embodiment of Figure 1 to 4 and is made by the recesses 14 narrow, concentric with each other. On the outer face 17 which has the reflux means 9, the annular disc 6 is provided with another counter-stamping 18. It is made identically to the counter-stamping 12 on the outer face 11 opposite, but offset radially by report to this one. The shallow recesses 19 of the counter-stamping 18 are located symmetrically between two recesses 14 of the counter-stamping 12 opposite, seen in the axial direction of the annular disk 6. Radially, counter-stamping 19 is narrower than the counter-stamping 12. The recesses 19 are made identically to the recesses 14. The recesses 14 of the counter-stamping 12 receive the adhesive 16 (Figure 9) with which the annular disc 6 is glued against the bottom 3 of the support body. Thanks to the counter-stampings 12 and 18 on both sides of the annular disc 6 in the region radially outside the reflux means 9, it is even better to compensate for crowns and / or corrugations. In part, thanks to the two (Ail-1u, stdrnpa: es 12 18, it is dd - an adjustment wire Aea diii'L Laia bomeeiii ii, corrugations annulai disc., After stamping the 9. The two counters 12 and 18 can be made in different ways, for the optimal annular disk 6 in its flat situation depending on the degree of bulging and / or ripples.

  Figures 13 to 16 show an embodiment in which counter-stamping 12 is formed by very narrow grooves 20 connected directly to each other, which are concentric with each other. As in the previous embodiments, counter-stamping 12 is radially outside the reflux means 9 on the other side 17 of the annular disk 6. The reflux means 9 is again formed by a system of spiral grooves which extend from the edge 10 of the opening 7 radially inwards. The reflux means 9 is made corresponding to the previous embodiments.

  The grooves 20 of the counter-stamping 12 are arranged one behind the other forming saw teeth in axial section. The grooves 20 have a very small depth. Correspondingly to the previous embodiments, the counter-stamping 12 extends substantially to the outer edge 13 of the annular disk 6. Again, the counter-stamping 12 is located radially outside the reflux means 9 on the opposite side 17 of the annular disk 6. Also with the grooves 20 of the counter-stamping it is possible optimally to compensate a bulge and / or undulations of the annular disk 6 after the stamping of the reflux means 9, so that the Annular disc 6 has a flat shape. The grooves 20 receive the glue 16 with which the annular disk 6 is fixed in the manner described on the bottom 3 of the support body.

  As the grooves 20 are very narrow and they are connected directly to each other one can optimally remove a bulge from the drives of the disk snn, ulaire 6 apr, 1 '(dv rh od ,, 1, 9. - rainl '-) have, f di; ation ill planned so fom, section ula s located at a distance from each other. The grooves 20 need not necessarily have the same depth.

  but they can be badly: Seen with different depths depending on the geometry, the shape and / or the stamping depth of the reflux means 9.

  The grooves 20 may also be provided on the opposite side 17 of the annular disc 6 radially outside the reflux means 9, as is the case in the embodiment of Figures 9 to 12.

  The composite assembly assembly according to FIGS. 17 to 22 differs from the embodiments previously described essentially in that the annular disk 6 has no means of reflux and that the housing 12, formed by stamping, for the glue 16 is provided on the outer face 5 of the bottom 3 of the support body 1. Due to the absence of the reflux means, one can do without profiled housing on the opposite outer face of the annular disk 6 and thus save a stamping die corresponding. Thus, the housing 12 may be provided on the bottom 3 of the support body.

  In the embodiment of FIGS. 17 and 18, the stamping of the housing is carried out identically to the embodiment according to FIGS. 1 to 3. This stamping of the housing 12 extends practically over the entire radial width of the bottom. 3 of the support body, so that there remain only two annular edges 21 and 22 narrow which are connected to the edge 4 of the opening, that is to say the envelope 2 of the support body 1 The stamping of the housing 12 is formed, corresponding to Figures 1 to 3, by concentric circles which are advantageously at the same distance from each other. The cross section of the recesses of the stamping is rectangular. Their relatively small depth is smaller by a multiple than the thickness of the bottom 3 of the support body. The shallow recesses of the stamping 12 are filled with the glue 16 and then the snap disk 6 is placed flat and flat on the bottom 3 d-, in the neck: The embodiment of FIGS. 19 and 20 differs from this previous embodiment only in that the stamping of the housing 12 corresponds to the embodiment of FIG. 5 to 7, which is formed by two shallow recesses 14 and 15 which are located concentrically and at a short distance from each other, advantageously their depth is much smaller than the thickness of the the bottom section 3 of the support body The glue 16 can be received in the recesses 14 and 15 in such a way that a very durable and very secure connection of the annular disk 6 with the support body 1 is obtained.

  Finally, FIGS. 21 and 22 show an embodiment in which the stamping of the housing 12 of the bottom 3 of the support body is carried out in a manner corresponding to the embodiment of FIGS. 13 to 15. The housing 12 comprises a plurality of grooves 20 very close and immediately adjacent to each other, which are arranged concentrically relative to each other. As in the embodiment previously described, the stamping of the housing 12 is between an inner annular border and an outer annular border 21 and 22 of the bottom 3 of the support body. The grooves 20, as has been described with the aid of the embodiments of FIGS. 13 to 15, are formed in the form of saw teeth and arranged radially one behind the other. The depth of the grooves is relatively small. The adhesive 16 is provided in the grooves 20, and with it the annular disk 6 can be fixed simply and securely to the support body 1. As in the embodiments of FIGS. 17 to 20, the annular disk 10 is applied flat against the outer face 5 of the bottom 3 of the support body.

  The stampings of the housings 12 in the embodiments of Figures 17 to 22 may also have other sectional shapes of others.1; Some of them were dirty, others were very bad. The.

  I.-ences on the wide in. and / 6d is a reference of the bottom 3 of the cooked ,. do not support.

  The described embodiments of the housings, that is to say counter-stampings 12 and 18 must be heard only in exemplary fashion. According to the embodiment of the support body 1 and / or the annular disc 6, in particular according to the degree of bulging and / or corrugations of the annular disc 6, the housings 12, that is to say the stampings, can have most different shape designs. It is also possible to provide on both sides 11 and / or 17 of the annular disk 6 and / or on the bottom 3 of the support body counter-stampings 12 and 18 of different designs in combination, in order to achieve in this way a secure connection between the support body 1 and the annular disk 6, and to compensate for the undulations and / or the bulging of the annular disc 6 after stamping the reflux means 9.

  In the embodiments illustrated and described, the annular disc 6 is fixed solely by way of example by means of the glue 16 on the bottom 3 of the support body. Of course, the annular disk 6 may be connected in another way to the support body 1, for example by plasma activation. The portion of the annular disc 6 which is to be fixed on the bottom 3 of the support body is activated by means of a plasma and then fixed by gluing on the bottom 3 of the support body.

2890422 12

Claims (19)

claims   A composite assembly assembly, comprising at least one support body to which at least one disk-shaped component is attached, characterized in that the support body (1) and / or the disk-shaped component (6). ) comprises at least one housing (12, 18), formed by a stamping, for an adhesive (16).   Composite assembly assembly, comprising at least one support body to which at least one disc-shaped component is attached with at least one side of at least one stamping, characterized in that the disk-shaped component (6) is provided, at least partially to compensate for the deformations caused by the realization of the stamping (9), of at least one counter-stamping (12, 18) as a housing.   3. Composite assembly assembly according to claim 1 or 2, characterized in that the housing (12, 18) comprises at least one recess (14, 15, 19, 20).   4. Composite assembly assembly according to claim 2 or 3, characterized in that the counter-stamping (12, 18) has a depth less than the stamping (9).   Composite assembly assembly according to any one of claims 2 to 4, characterized in that the depth of the counterstamping (12, 18) is less than at least half the thickness of the support body (1), preferably the bottom (3) of the support body, and / or the disk-shaped component (6).   6. It seems to be composite according to any of the Broken Ions, in that the counter-stamp (12, i) is at least about up to about 20% of the thickness of the body of the body. support (1), pro 1ce the bottom (3) of the support body, and / or the disk-shaped component (6).   2890422 13 7. Composite assembly assembly according to any one of claims 2 to 6, characterized in that the radial extension of the counterstamping (12, 18) is greater than the extension of the stamping (9) of the shaped component disc (6).   8. Composite assembly assembly according to any one of claims 1 to 7, characterized in that the glue (16) is provided in the recess (14, 15, 19, 20).   Composite assembly assembly according to any one of claims 2 to 8, characterized in that the counter-stamping (12) and the stamping (9) are located on different sides (11, 17) of the component. disc shape (6).   Composite assembly assembly according to any one of claims 2 to 8, characterized in that the counter-stamping (18) and the stamping (9) are located on the same side (17) of the shaped component. disc (6).   Composite assembly assembly according to one of Claims 2 to 10, characterized in that the stamping (9) and counter-stamping (12, 18) are provided in different regions of the shaped component. disc (6).   12. composite assembly assembly according to any one of claims 1 to 11, characterized in that the disc-shaped component (6) is an annular disk.   13. Assembly assembly assembly according to any one of the claims to 12, wherein li-111 (9) is a means of rei K. 14. A method of making a composite composite assembly according to any one of the following. 13, characterized in that at least 2890422 14 a housing (12, 18) made in the form of stamping is formed on the support body (1) and / or on the disk-shaped component (6). .   15. The method of claim 14, characterized in that the housing (12) is formed at the bottom (3) of the support body (1).   Method according to claim 14 or 15, characterized in that the housing (12) is formed on one side (11) of the disc-shaped component (6) which is opposed to the stamping (9) on the component in question. disc shape (6).   17. A method according to claim 16, characterized in that the housing (12, 18) is formed on the disk-shaped component (6) such that deformations of the disk-shaped component (6) caused by the stamping operation are at least partially compensated.   18. Method according to any one of claims 14 to 17, characterized in that the housing (18) is formed on the same side (17) of the disk-shaped component (6) as the stamping (9).   19. Process according to any one of claims 14 to. 17, characterized in that the two housings (12, 18) are located on different sides (11, 17) of the disk-shaped component (6) of the same height.