JP5804246B2 - Elastic coupling with integrated torsional vibration damper - Google Patents

Description

  The present invention relates to an elastic coupling comprising a support, each support having a receiving bushing that is movably arranged so that each receiving bushing is attached to at least one of the supports. It is attached to the elastically deformable layer. The present invention relates to an elastic coupling provided with a support, and each of the supports has a plurality of receiving bushings that are movably arranged so that each of the receiving bushings is elastically deformable bonded to the support. It is attached by various layers.

  Such an elastic coupling is known from, for example, Patent Document 1 or Patent Document 2.

  Frequently, a shaft coupling with elasticity is used to transmit the rotational moment between the two shafts to dampen the generated rotational vibrations and shocks. Known shaft couplings usually consist of shafts that are joined together or a mounting flange at the end of the shaft and a resilient coupling disposed between the mounting flanges.

  The elastic coupling has a receiving bushing on its outer periphery at a constant angular spacing, which contains means for coupling with the mounting flange of the elastic coupling.

  The joint shaft (articulated shaft) of a rear wheel or all-wheel drive vehicle must always adjust the axial or angular imbalance. At the same time, high rotational moments up to 4000 Nm must be transmitted.

  Modern high-supercharged internal combustion engines with a small number of cylinders generate considerable vibrations. Therefore, there is a need for an elastic coupling in which vibration is damped or eliminated.

German Patent Application Publication No. 102006012758A1 German Patent No. 102008007761.5

  The object of the present invention is to realize an arrangement which ensures a suitable connection for the operation of the two shaft ends by cheap manufacturing. Another object of the present invention is to provide an elastic coupling capable of effectively reducing torsional vibration.

In order to solve the above-mentioned problem, the invention according to claim 1 of the present application is provided with a plurality of receiving bushings (2) each having an elastically deformable layer (3) mounted on the outer circumferential surface,
The plurality of receiving bushings (2) are held by a support (1) comprising a combination of a coupling part (6) and a corresponding part (7),
The coupling component (6) and the corresponding component (7) are coupled to each other by a coupling flange (9) provided on the outer peripheral portion of the coupling component (6) in a plurality on the circumference,
A vibration ring (5) is arranged on the outer peripheral side of the coupling part (6), and the coupling part (6) and the vibration ring (5) are interposed between the coupling flange (9) and the vibration ring (5). The torsional vibration damper (4) is set by connecting with a plurality of elastomers (10),
A recess (11) extending in the axial direction is provided in the elastomer (10), a rolling element (12) is inserted into the recess (11), and the support (11) is oscillated through the rolling element (12). A structure that supports the ring (5),
The rolling element (12) is provided with a poppet-shaped end so as to prevent the rolling element (12) from coming off.
Protruding portions projecting radially outward are provided on the outer peripheral surface of the support body (1) and projecting portions (14) projecting radially inward are provided on the inner peripheral surface of the vibration ring (5). A torsion stop (13) for restricting relative rotation of the vibration ring (5) with respect to the support (1) to a predetermined angle by engaging the protrusions in the circumferential direction is provided,
The support (1) is provided with an overhanging portion (15a) projecting radially outward, and the vibrating ring (5) is engaged with the overhanging portion (15a) in the axial direction so that the support ( Mooring fixing means (15) for restricting the axial relative displacement of the vibrating ring (5) relative to 1) to a predetermined distance;
Three types of structures comprising the support structure of the vibration ring (5) through the rolling element (12), the torsion stopper (13) and the mooring fixing means (15) are arranged in a line on the circumference. We propose an elastic coupling characterized by

The invention according to claim 2 of the present application is characterized in that the support (1) is coupled to a multi-arm flange (16) disposed on the support (1) in a coaxial direction. The elastic coupling according to claim 1 is proposed.

Furthermore, the invention according to claim 3 of the present application is characterized in that the multi-arm flange (16) accommodates a centering sleeve (17) disposed on the multi-arm flange (16) in a coaxial direction. The elastic coupling according to claim 2 is proposed.

  The present invention solves the above problem by the features of claim 1.

  According to this, the elastic coupling mentioned at the beginning is characterized by having a vulcanized torsional vibration damper comprising an elastomer and a vibration ring (flywheel ring).

  According to the invention, this makes it possible to dispense with a mass damper hub (damper hub). In this case, the mass damper hub can be replaced by a member existing in any of the elastic couplings. This can save part costs.

  Furthermore, even if there is no element of the torsional vibration damper in the bolt connection, press fitting with a narrow tolerance and high cost is required. The vibrating ring is in this case vulcanized to the support by an elastomer as an inertial mass. As long as that is the case, it is possible to realize an arrangement in which the torsional vibration damper is integrated by guaranteeing the coupling suitable for the operation of the two shaft ends by inexpensive manufacturing.

  Therefore, the problems listed at the beginning have been solved.

  The torsional vibration damper can be coupled to the support and have a vibration ring. The vibration of the joint shaft can be effectively removed by the vibration ring that is rotatable with respect to the support.

  The support consists of a coupling part and a corresponding part for accommodating three, six or eight receiving bushings between them, wherein the vibrating ring is coupled to the coupling part of the support. It is advantageous in this case that the vibrating ring is coupled with the coupling part and calibrated (outer diameter restriction) prior to the assembly of the elastic coupling. Specifically, the vibrating ring can be calibrated radially inward. In particular, the coupling of the vibrating ring to the coupling part by vulcanization can be carried out without damaging another member of the elastic coupling.

  The coupling part can have at least one coupling flange, but preferably three coupling flanges, which engage the corresponding part in the axial direction. Due to the formation of the coupling flange, the vibrating ring can be vulcanized into the coupling part without problems. Against this background, the vibrating ring is vulcanized. As a result, the elastic rotational movement of the vibrating ring relative to the support can be reliably realized.

  The vibrating ring is in this case connected to the support by an elastomer.

  The oscillating ring is accommodated between the support and the oscillating ring and is supported via at least three rolling elements having a bowl-shaped enlarged end so that after radial calibration to the interior of the oscillating ring Axial fixation occurs. The rolling elements are preferably housed in elastomeric recesses that couple the vibrating ring to the support.

  The vibration ring can be attached to a torsion stopper. This limits the rotational movement of the vibrating ring and is clearly decelerated.

  Mooring fixing means can be attached to the vibration ring. This prevents axial separation of the vibrating ring from the support.

  The anchoring means is generated (generated) during the assembly of the support and can have a radially projecting overhang connected to the corresponding part. At the time of assembling the support, that is, when the corresponding component and the coupling component are joined in the axial direction, the anchoring fixing means is generated, and the effect is exhibited by the projecting portion protruding in the radial direction.

  The support can be coupled to a multi-arm flange disposed on the support in the coaxial direction. Preferably, the shaft end can be connected to a three-arm flange.

  The multi-arm flange can accommodate a centering sleeve disposed on the multi-arm flange in the coaxial direction. This allows the shaft journal to be accommodated and clearly centered. The centering sleeve preferably accommodates an elastic layer that can surround the shaft journal.

  The elastic coupling described here is preferably used in automobiles in that internal combustion engines generate high rotational moments and vibrations.

  There are various possibilities to form and develop the disclosure of the present invention in an advantageous manner.

  To that end, reference is made, on the one hand, to the dependent claims and on the other hand to the following description of a preferred embodiment of the elastic coupling according to the invention with the aid of the drawing.

  In connection with the description of the preferred embodiment with reference to the drawings, generally preferred forms and developments of the disclosure are also described.

FIG. 4 is a perspective view showing a connecting part with a vulcanizing vibration ring in which three separately shown rolling elements can be inserted. It is a perspective exploded view showing an elastic coupling in which six receiving bushings are accommodated in the support. FIG. 3 is a perspective cross-sectional view showing the coupled elastic coupling according to FIG. 2. FIG. 3 is a perspective view showing the coupled elastic coupling according to FIG. 2. FIG. 5 shows a top view of the elastic coupling according to FIG. 4. FIG. 3 shows a coupling part with a vulcanizing vibration ring with three separately shown rolling elements inserted between them. It is a perspective exploded view showing a part of an elastic coupling in which three receiving bushings are accommodated in the support. FIG. 6 is a perspective exploded view showing an elastic coupling in which three receiving bushings are accommodated in the support, and the elastic coupling has a three-arm flange. FIG. 9 is a perspective cross-sectional view showing the coupled elastic coupling according to FIG. 8. FIG. 9 is a perspective view showing the coupled elastic coupling according to FIG. 8. FIG. 11 is a top view showing the elastic coupling according to FIG. 10.

  FIGS. 4 and 10 respectively show elastic couplings (joint shaft couplings) comprising a support body 1 that accommodates receiving bushings 2 that are movably arranged relative to each other, where each receiving bushing 2 is At least one elastically deformable (elastically deformable) layer 3 attached to (bonded to) the support 1 is attached. The elastic coupling has a torsional vibration damper (joint shaft mass damper) 4. The receiving bushing 2 is also movable with respect to the support 1.

  The elastic coupling has a vulcanized torsional vibration damper 4 comprising an elastomer 10 and a vibration ring 5. The torsional vibration damper 4 is coupled to the support 1 and has a vibration ring 5 and an elastomer 10. The torsional vibration damper 4 is connected to the support 1. That is, the torsional vibration damper 4 is disposed between the vibration ring 5 disposed on the outer peripheral side of the support 1 and between the support 1 and the vibration ring 5 and vulcanized to both 1 and 5. And an elastomer 10 bonded thereto. Elastomers 10 are arranged at equal intervals at three locations on the circumference.

  FIG. 2 shows an exploded view of the elastic coupling according to FIG. The support 1 comprises a coupling part 6 for accommodating six receiving bushings 2 between them and a corresponding part 7, where the vibrating ring 5 is coupled to the coupling part 6 of the support 1. The connecting part 6 and the corresponding part 7 are connected to each other by twelve rivets 8.

  FIG. 1 shows a connecting part 6 according to FIG. The coupling part 6 has three coupling flanges 9 that engage the corresponding part 7 in the axial direction. The coupling flange 9 is arranged with a 120 degree shift. A vibration ring 5 is vulcanized on the coupling part 6. The vibration ring 5 is coupled to the coupling component 6 by an elastomer 10. A recess 11 extending in the axial direction is formed in the elastomer 10, and a rolling element 12 can be inserted therein.

  The vibration ring 5 is supported via three rolling elements 12 accommodated between the support 1 and the vibration ring 5. The rolling element 12 has a bowl-shaped (poppet-shaped) enlarged end, whereby axial fixation occurs after radial calibration to the interior of the vibrating ring 5.

The vibration ring 5 can be attached to the torsion stopper 13. The torsion stopper 13 includes a jaw portion (protrusion portion) extending in the radial direction, and an engaging body (protrusion portion) 14 extending in the radial direction can be attached thereto. The torsion stopper 13 restricts the relative rotation of the vibration ring 5 with respect to the coupling component 6 by a predetermined angle.

  FIG. 3 shows a perspective section of the elastic coupling according to FIG. Mooring fixing means 15 are attached to the vibrating ring 5, which extends (generates) after the additional assembly of the support 1 with the vulcanized torsional vibration damper 4 extending in the radial direction. The mooring and fixing means 15 includes three projecting portions 15 a projecting in the radial direction and connected to the corresponding component 7. The mooring fixing means 15 restricts the axial relative displacement of the vibration ring 5 with respect to the coupling component 6 to a predetermined distance and prevents the vibration ring 5 from coming off in the substantial axial direction.

  FIG. 5 shows a top view of the elastic coupling according to FIG.

  FIG. 10 shows that the support 1 is coupled with a three-arm flange 16 disposed on the support 1 in the coaxial direction. The three arm flange 16 accommodates a centering sleeve 17 disposed on the three arm flange 16 in the coaxial direction. An elastic layer 18 is disposed inside the centering sleeve 17.

  7 and 8 show an exploded view of the elastic coupling according to FIG. The support 1 consists of a coupling part 6 and a corresponding part 7, which accommodate three receiving bushings 2 between them, in which the vibrating ring 5 is coupled to the coupling part 6 of the support 1. The connecting part 6, the corresponding part 7, and the three-arm flange 16 are connected by a rivet 8.

  FIG. 6 shows the coupling part 6 according to FIG. The coupling part 6 is coupled to the vibration ring 5 by an elastomer 10. A vibration ring 5 is vulcanized on the coupling part 6. The elastomer 10 is formed with a recess 11 extending in the axial direction, into which a rolling element 12 can be inserted. The rolling element 12 has an end that expands in the form of a bowl, whereby axial fixation occurs after radial calibration to the interior of the vibrating ring 5.

  The vibration ring 5 is supported via three rolling elements 12 housed between the support 1 and the vibration ring 5.

  FIG. 9 shows a perspective cross-sectional view of the elastic coupling according to FIG. FIG. 11 shows a top view of the elastic coupling according to FIG.

  For further advantageous forms and developments of the disclosure according to the invention, reference is made, on the one hand, to the review part of the description, and on the other hand to the appended claims. Finally, it should be particularly emphasized that the preselected embodiment serves to explain the disclosure according to the invention, but is not limited to this embodiment.

DESCRIPTION OF SYMBOLS 1 Support body 2 Receiving bushing 3 Elastically deformable layer 4 Torsional vibration damper 5 Vibrating ring 6 Coupling part 7 Corresponding part 8 Rivet 9 Coupling flange 10 Elastomer 11 Recess 12 Rolling body 13 Torsion stop 14 Engagement body 15 Anchoring fixing means 15a Overhang Part 16 Multi-arm flange 17 Centering sleeve 18 Elastic layer

Claims (3)

A plurality of receiving bushings (2) each having an elastically deformable layer (3) mounted on the outer peripheral surface are arranged side by side on the circumference,
The plurality of receiving bushings (2) are held by a support (1) comprising a combination of a coupling part (6) and a corresponding part (7),
The coupling component (6) and the corresponding component (7) are coupled to each other by a coupling flange (9) provided on the outer peripheral portion of the coupling component (6) in a plurality on the circumference,
A vibration ring (5) is arranged on the outer peripheral side of the coupling part (6), and the coupling part (6) and the vibration ring (5) are interposed between the coupling flange (9) and the vibration ring (5). The torsional vibration damper (4) is set by connecting with a plurality of elastomers (10),
A recess (11) extending in the axial direction is provided in the elastomer (10), a rolling element (12) is inserted into the recess (11), and the support (11) is oscillated through the rolling element (12). A structure that supports the ring (5),
The rolling element (12) is provided with a poppet-shaped end so as to prevent the rolling element (12) from coming off.
Protruding portions projecting radially outward are provided on the outer peripheral surface of the support body (1) and projecting portions (14) projecting radially inward are provided on the inner peripheral surface of the vibration ring (5). A torsion stop (13) for restricting relative rotation of the vibration ring (5) with respect to the support (1) to a predetermined angle by engaging the protrusions in the circumferential direction is provided,
The support (1) is provided with an overhanging portion (15a) projecting radially outward, and the vibrating ring (5) is engaged with the overhanging portion (15a) in the axial direction so that the support ( Mooring fixing means (15) for restricting the axial relative displacement of the vibrating ring (5) relative to 1) to a predetermined distance;
Three types of structures comprising the support structure of the vibration ring (5) through the rolling element (12), the torsion stopper (13) and the mooring fixing means (15) are arranged in a line on the circumference. Features an elastic coupling. The elastic coupling according to claim 1 , characterized in that the support (1) is coupled with a multi-arm flange (16) arranged on the support (1) in a coaxial direction. The elastic coupling according to claim 2 , wherein a centering sleeve (17) disposed in the multi-arm flange (16) in a coaxial direction is accommodated in the multi-arm flange (16).

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