Machine element or mechanism – Elements – Flywheel – motion smoothing-type
Patent
1995-03-10
1997-06-03
Bonck, Rodney H.
Machine element or mechanism
Elements
Flywheel, motion smoothing-type
74574, F16F 15315
Patent
active
056343817
DESCRIPTION:
BRIEF SUMMARY
FIELD OF THE INVENTION
The invention relates to an arrangement comprising a flange for coupling a cylindrical element to be driven at a high rotational speed with an inner, and coaxial rotating axle, comprising a first, cylindrical inner element suitable for being connected to the axle and connected via a connecting part to a cylindrical outer part to which the cylindrical element is attached, said element being situated radially outside of said outer part, said connecting part comprising two disk-shaped parts, lying at a distance of each other in the axial direction and being interconnected by an intermediary part via respective essentially right-angled transitions.
DESCRIPTION OF THE PRIOR ART
Such an arrangement is known from U.S. Pat. No. 5,012,694. This known arrangement is intended to be used in an energy storing flywheel and more particularly for interconnecting the ring-shaped parts of such a flywheel which is made up of a number of concentric, distinct, ringlike components.
During operation these ringlike components exhibit a radial growth. The known arrangement is intended to take-up such a radial growth as a result of the fact that the disk-shaped parts, which are lying at a radial distance of each other can move with respect to each other in the radial direction so that during operation the engagement of surfaces thereof with the inner surface of the outer component is maintained. The engagement with the inner component is maintained by a special inner ringlike retaining component. This specific known structure is only suitable to be used with low-mass flywheels.
SUMMARY OF THE INVENTION
The invention aims to provide an arrangement of the above mentioned kind which can be used with a flywheel having a relatively large mass, which is able to yield elastically in a radial direction while the radial rigidity which is required to counteract any radially concentrated loads and which is also necessary for a good vibration behaviour is neverthless maintained.
To this purpose the disk-shaped parts are also situated at a distance from one another in the radial direction, the outermost thereof is connected to the outer part via an essentially right-angled transition, and the innermost thereof is connected to the inner part via an essentially right-angled connection the outermost of said disk-shaped parts is only connected to the outer part of said cylindrical inner and outer parts and the innermost of said disk-shaped parts is only connected to the inner part of said cylindrical inner and outer parts.
With the measures in accordance with the invention a completely uniform contact pressure along the entire circumferences is obtained, while a much greater torque can be transferred. The entire unit is very easy to manufacture.
A preferred embodiment is characterized in that the intermediary part that is essentially cylindrical and coaxial to the rotating axle.
The claimed exclusive right also involves a device with a flange characterized by at least one rotor bearing, the rotating inner ring of which closely encloses the external surface of the inner part of the flange, while the stationary outer ring is supported by the surrounding.
BRIEF DESCRIPTION OF THE DRAWING
The invention is disclosed in detail in conjunction with the drawing which shows a cross-section of the preferred embodiment of the invention.
DESCRIPTION OF THE PREFERRED EMBODIMENT
In the figure the reference numeral 2 indicates the stationary axle of a rotating unit, in particular an energy storage unit, the rotor of which 4 is also partially and schematically illustrated.
The coupling between the axle 2 and the rotor 4 is achieved in a very special manner by an essentially S-shaped flange 6; a similar flange is also fitted to both the upper and lower end of the axle. The FIGURE illustrates the flange fitted to the upper end of the axle.
This flange 6 consists of a cylindrical inner part 8 that encloses the axle 2 and is connected to the rotating part 30 of the bearing 32 and a cylindrical outer part 10 to which the rotor 4 is at
REFERENCES:
patent: 2878689 (1959-03-01), Aebersold
patent: 4479568 (1984-10-01), Palazzolo et al.
patent: 4499772 (1985-02-01), Haas
patent: 4860611 (1989-08-01), Flanagan et al.
patent: 5012694 (1991-05-01), McGrath
Battista Mary Ann
Bonck Rodney H.
CCM Beheer B.V.
Jaskiewicz Edmund M.
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