The invention relates to a device for mechanical and/or magnetic transmission of force with the aid of movable springs, shock absorbers, magnets and the like that interact with one another.
Mechanical or magnetic force transmitting devices have long been known in which a driving force is transmitted from a first rotatably supported body to a second rotatably supported body. Such force transmissions are used in rigid clutches or so-called shaft compensation clutches. These can be obtained worldwide in many designs and on many principles.
The object of the present invention is to furnish an improved method and device for mechanical or magnetic force transmission, in particular pulse transmission, with which the torque transmitting capacity in particular can be improved. A further object is to furnish both a method and a device for mechanical force transmission with which pulses can be transmitted over long distances. It is also an object to propose a device with which some of the pulse energy can be caught.
According to the invention, the object is attained by a device in accordance with the preamble to claim 1, which is characterized in that the supports are each rotatably located on their own, independent axle. This device according to the invention has the advantage that transmission devices of arbitrary length can be constructed. Moreover, a device according to the invention can comprise identical units or elements.
Advantageously, for forming a pulse transmitting element, two supports each, spaced apart from one another, are disposed on a common axle in a manner fixed against relative rotation. Furthermore, a plurality of such pulse transmitting elements can be provided, which are disposed coaxially and spaced apart from one another along a common axis of rotation such that the springs, shock absorbers or magnets of one element can cooperate at least with those of an adjacent element. By the type of interaction, it is possible to transmit rotary pulses practically without loss. Expediently, the axle of the support or of the element, each rotatably disposed on a stationary frame, and the freewheel means (backstops) are solidly joined to the frame, so that the support or the element is rotatable in only one direction of rotation.
As already described above, one support can be embodied as a movable carriage, and a plurality of carriages can be disposed movably in only a certain direction in one row and spaced apart from one another on a rail, so that a starting pulse transmitted from an external pulse transducer to the first carriage is transmitted to the last carriage on the rail. Alternatively, as the support, a disk or ring may be provided, and a plurality of disks or rings may be located on one common axis of rotation or on a plurality of axes of rotation and spaced apart from one another in the form of a lineup of disks or rings. The geometries described are easy to achieve in practice and prove to be especially favorable.
Advantageously, a disk, ring, split ring or the like acting as a support is retained by a central or noncentral freewheel bearing, which assures that the support is supported and is rotatable in only one direction of rotation. The freewheel bearing may be a combination of a conventional bearing and a freewheel bearing. To keep the load on the freewheel bearing low, the rings, disks, carriages, etc. are expediently each located on suitable separate bearings, or are kept movable by them in at least one direction, and separate freewheel bearings are used that control the direction of travel or motion, for instance in combination with the gear wheel which cooperates with a corresponding toothing on the ring or on the disk. One skilled in the art can see that in the case where a plurality of bearings are used, they may be located on the inner and/or outer circumference of a ring.
It is conceivable to provide a circular disk as a support for the springs, shock absorbers, etc., and to locate a plurality of these disks in a common plane and spaced apart from one another rotatably in only a certain direction of rotation (with the axis of rotation perpendicular to the common plane), so that a starting rotary pulse transmitted from an external pulse transducer to the first disk is transmitted as far as the last disk in the arrangement of disks. The possibility exists of locating the disks such that all the disks rotate in the same direction of rotation or alternatingly in opposite directions of rotation, if the disks are located not one after the other but side by side. It is also conceivable to locate the disks in the form of a stack and in a circle.
In the case of a linear arrangement of supports cooperating with one another, it is conceivable to provide means for transmitting or feeding the pulse from the last support back to the first support again. Such means may for instance be an axle which connects the last support to the first support. As a bearing means for the supports, bearings of all kinds can be used, such as ball bearings, slide bearings, running bearings, or the like. The only significant aspect is that transporting or motion of the supports be assured with as little loss as possible, so that of the energy input externally in the form of a pulse, an excessive amount is not lost through friction.
In an especially preferred embodiment, for forming a single pulse transmitting element, two supports each, spaced apart from one another, are disposed on a common axle in a manner fixed against relative rotation. This has the advantage that the lengths of the force transmitting device can be made arbitrarily long. A plurality of such elements can be provided. They may be located along a common axis of rotation, coaxially and spaced apart from one another, in such a way that the spring means of one element are able to cooperate with at least one adjacent element.
Expediently, the supports are supported freely rotatably by means of a plurality of bearings located outside on the periphery, and on the inside of the ring a toothing is provided, with which a gear wheel retained by a freewheel bearing meshes. The common axis of rotation of the supports can be located on a straight line or on a curved path, preferably a circular path. Preferably, one or more first gear wheels, carrying the supports, are disposed on one or more axles in a manner fixed against relative rotation, and spaced from the axis of rotation of the aforementioned axles, at least one further second axle, with second gear wheels disposed on it with backstops, is provided, which second gear wheels can be brought into engagement with the first gear wheels directly, or by means of a chain or belt. By means of the second gear wheels, some of the pulse energy can be transmitted to an external pulse energy collector or caught.
Advantageously, means are provided for blocking or locking at least one element in a defined rotary position. These locking or blocking means can be formed by a locking bar, a gear wheel, a clutch or the like and can cooperate, preferably by positive engagement, with at least one element, preferably the second element, of a device. By means of the blocking means, the second pulse transmitting element of a corresponding device can for instance be locked, so that a first drive element can be subjected to the desired spring tension. Although in principle each support can be equipped with only one spring, in a preferred embodiment, each support is equipped with at least two springs spaced apart from one another.
Advantageously, additional inertial parts, such as flywheels, are disposed on the supports, pinions, gear wheels, backstops or axles, for increasing the pulse energy that is capable of being stored by the device. Thus the kinetic energy that can be stored in the device can be varied. In a preferred embodiment, a mechanism is provided for adjusting the maximum compression and/or relief of the spring. This makes it possible to maintain a residual tension between the springs of adjacent supports. For that purpose, the adjusting mechanism may be a frame disposed on the spring, or a threaded pin with a nut, for limiting the maximum compression and/or relief of the spring.
Expediently, the position and shape of the magnets on the individual supports is selected such that a residual tension which is always >0 is established between the magnets disposed on adjacent supports. In the case of springs or shock absorbers as well, their form or nature as well as their position on the individual supports are selected such that a residual tension between the springs or shock absorbers disposed on the adjacent supports is established which is always >0. Advantageously, the gear wheels, pinions or the like cooperating with one another are disposed such that the energy of motion from the individual elements can be carried to the outside, and the pinions or gear wheels can continue running with or without flywheels. To accomplish this, additional backstops can be provided on the inner, first gear wheels.
A preferred embodiment provides disposing one or more first gear wheels with backstops on one or more axles, and providing, spaced apart from the axis of rotation of the axles aforementioned axle, at least one second axle with second gear wheels, disposed thereon in a manner fixed against relative rotation, or second gear wheels with backstops, disposed thereon, which second gear wheels can be brought into engagement with the first gear wheels directly, or by means of a drive chain, belt, toothed belt, or the like. Furthermore, for attaining a variable dynamic pulse behavior, by a controller can be provided by providing that the energy of motion is carried to the outside from only every other element, or every third or every fourth element, and so forth. For instance, the energy can be carried to the outside from the second, fourth, sixth, and eighth element, etc., or from the third, sixth, ninth, and twelfth element, etc.
The invention is described in further detail below in conjunction with the drawings. In the drawings, the same reference numerals are used for the same elements.
a) is a schematic illustration of the magnetization of the magnets of two adjacent elements;
b) shows the position of repose between the two elements of
c) shows the location of two magnets of two adjacent elements when tension has been built up (“compression”);
In
The trapezoidal mounts 13 have a base face 23, which rests on the support 11, and an end face 25, spaced apart from the base face 23. The base face 23 and end face 25 are fixedly joined together by a middle part 27. The middle part 27 together with the side edges 29, 29′ of the base face 23 and end face 25 forms a U-shaped seat, oriented toward the side, for the spring means 15. Round recesses 33 for receiving a pin 35 are provided in both the base face 23 and the end face 25.
In
In
In
An element 12 as shown in
In a device comprising a plurality of elements 12 located on an axis of rotation 52, the elements 12 provided at the beginning and end of the device may, as shown in
The exemplary embodiment of
In the exemplary embodiment of
Preferably, spring means which make it possible to fix a residual tension setting should be selected. This can be attained by means of a mechanical device of the kind used in a shock absorber. The springs may also preferably be constructed such that upon complete relaxation, the engagement moment (shortly before the relaxation point) is still located relatively close to the maximum tension point. Preferably, a spring means of the kind in which the residual tension can be adjusted is employed.
The energy drawn should preferably be selected such that of the residual spring tension, for instance of 1000 kg, of the individual spring, it attains the torque of no more than 80% (800 kg). It is thus attained that the pulse is put relatively quickly and uniformly through the system (that is, the arrangement of a plurality of elements). If magnets are used, care must be taken that a residual magnetic tension (MRS) is preserved.
The centrifugal force of the individual elements or supports can also be mechanically increased, by selecting a large piston on the axle of the particular element and an equally small pinion outside in the “pulse energy collector”, but combines this with a large flywheel. The weight of the elements is thus mechanically moved upward. The flywheel and the backstop can for instance be embodied as a single unit. It is also conceivable for the inner pinion to be equipped with a backstop. Furthermore—as shown in
In
In
A small gear wheel, pinion on the element combined with a large gear wheel on the energy collector brings about an increase of torque at the energy collector axle (
A large gear wheel, pinion on the element combined with a small gear wheel on the energy collector brings about an increase of speed at the energy collector axle (
In conjunction with
For energy catching
In the exemplary embodiment of
The exemplary embodiment of
The fifth exemplary embodiment (
What is essential in the device of the invention is that a pulse or torque is transmitted by means of springs, shock absorbers, magnets, or the like from one support in a defined direction to a movably supported second support to the adjacent third support located movably in the same direction, and so forth. What is significant here is that each support is in communication with suitable means, for instance freewheel means such as freewheel bearings, so that the support can rotate or move forward in only one certain direction. Because the reverse travel of a support that is been put in motion is made impossible by the freewheel means used, a practically complete pulse transmission to the respective next support is accomplished, so that a starting pulse transmitted first from an external pulse transducer to the magnetic force transmitting device can be transmitted on the order of a wave practically without a loss over long distances. For the reader familiar with this subject matter, it is clear that within the scope of this invention, the most various arrangements and embodiments are conceivable and can be realized, without departing from the fundamental concept of the invention.
A perfect, self-compensating symmetry exists when each element of an arrangement adjusts automatically (that is, one after the other) to a new position once one or more elements of an arrangement is or are changed in its or their basic setting. It is advantageous if the direction of motion of all the elements in one and the same direction of rotation is limited. The number of elements does not matter, as long as
a) the internal tension in equilibrium of the individual elements to one another is higher than the total friction in the mechanical system;
b) at least one and preferably all the elements (on which forces act) are limited in one and the same direction of rotation.
1. The first primary principle of a dynamic, self-compensating mechanical and/or magnetic symmetry:
An asymmetrical, dynamic, self-compensating symmetry (of an arrangement of elements) that is not at rest is automatically restored symmetrically by means of its internal forces/torque-tensions of the individual elements, as long as the force/torque-tension acting on one another between each element interacting is greater than the sum of the friction in the total system; or more simply:
An asymmetrical, dynamic, self-compensating symmetry that is not at rest is restored from its own internal force, as long as the torque-tension acting in equilibrium with one another among the individual elements is greater than the sum of the friction in the total system.
2. The second primary principle of a dynamic, self-compensating mechanical and/or magnetic symmetry:
The amount of energy that is generated (that can be picked up at one or more collector axles) after one or more complete (in all elements) “restorations” (a pulsating element or pulsating elements cause asymmetrical→symmetrical reaction) can be greater (for a corresponding number of elements) than the initial energy (change in the position of one or more elements because of pulses) that causes an asymmetry, or more simply:
The amount of energy that is released in a symmetrical restoration of a dynamic, self-compensating mechanical and/or magnetic symmetry can be greater, when the number of elements is increased, than the amount of energy that causes or creates a pulselike symmetry in the system.
Gear wheels on the elements (see
Numerical example, with 50 elements:
Explanation:
The torque of the pulse, in our example, ranges between 1000 Nm (=maximum tension) and 500 Nm (=residual tension)=>750 Nm.
A skeptic will say that since friction is involved, this symmetrical arrangement will stop somewhere in the middle.
This is wrong, since 50 elements, for instance, in succession have a total distribution, including the collective, of 50 Nm of torque loss (500 Nm-50 Nm=450 Nm; 1000 Nm-50 Nm=950 Nm).
min 450 Nm, max 950 Nm
Average 700 Nm are continuously available, since the pulse is continuously repeated.
To obtain a rapid sequence of pulses, in practice 50% of the average torque (in this example, 350 Nm) is carried away to a generator.
Number | Date | Country | Kind |
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1157/03 | Jun 2003 | CH | national |
1556/03 | Sep 2003 | CH | national |
Filing Document | Filing Date | Country | Kind | 371c Date |
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PCT/CH04/00410 | 6/30/2004 | WO | 12/22/2006 |