Gearboxes and their use

Abstract

The invention relates to a transmission (1) comprising a transmission base component (4), a rotating shaft (3) rotatably mounted on the transmission base component (4), a first wrapping element (5.1) mounted circumferentially on the transmission base component (4) so ​​as to be movable, a second wrapping element (5.2) mounted circumferentially on the transmission base component (4) so ​​as to be movable at a distance (A) from the first wrapping element (5.1) and aligned parallel to the first wrapping element (5.1), a spring-elastic band (2) guided between the first wrapping element (5.1) and the second wrapping element (5.2), which is bent in a wave-like manner such that at least a first wave crest (B1) of the band (2) is supported on the first wrapping element (5.1) and at least a first wave trough (T1) of the band (2) is supported on the second wrapping element (5.2), and at least one spring-elastic band (2) coupled first actuating device (8.1) which determines the position and orientation of a first coupling section (2.1) of the spring-elastic band (2) as a function of the rotational position of the rotating shaft (3), and at least one second actuating means (8.2) coupled to the spring-elastic band (2) which determines the position and orientation of a second coupling section (2.2) of the spring-elastic band (2) that differs from the first coupling section (2.1) as a function of the rotational position of the rotating shaft (3), wherein at most one first actuating means (8.1) and at most one second actuating means (8.2) are coupled to the spring-elastic band (2) along a length of one half-shaft (HW) of the spring-elastic band (2). The invention also relates to various uses of such a transmission (1).

Description

[0001] The invention relates to a transmission for converting a drive torque between a wave-like movement of a spring-elastic band and a rotary movement of a rotating shaft, comprising a transmission base component and a rotary shaft rotatably mounted on the transmission base component. The invention also relates to various uses of such a transmission.

[0002] US 6,029,294 A describes a device for converting rotary motion into wave motion and vice versa, comprising a frame and a crank assembly attached to the frame, wherein the crank assembly has an axis of rotation and is rotatable about the axis of rotation. The device includes at least two elongated beams, each elongated beam having at least one crank mounting point radially offset from the axis of rotation and attached to the crank assembly at the crank mounting position, wherein the crank mounting points on the at least two beams are offset from each other by a preselected angular offset, wherein, when the crank assembly is rotated, each beam performs an oscillating motion in a plane. Each beam has at least two connecting members, each pivotably connected to the beam at a first end section and spaced apart from each other along the beam by a predetermined distance.Additionally, a flat flexible element is provided, wherein the connecting links are attached to a second opposite end section on the flat flexible element, whereby traveling waves are generated in the flat flexible element when the crank arrangement is rotated.

[0003] US Patent 2006 / 0172625 A1 describes a machine that acts in a working fluid such that the machine action causes a reaction movement of the fluid or the machine. The machine has a mounting surface and a plurality of drive elements attached to the mounting surface. Each drive element has a rod with a base and a control tip and a primary drive coupled to the base to move the rod back and forth. A computer is provided for synchronizing the primary drives so that the control tips form a substantially continuous control surface that undulates in the working fluid.

[0004] The purpose of the invention is to provide a new type of transmission.

[0005] The problem is solved by a transmission for converting a drive torque between a wave-like movement of a spring-elastic band and a rotary movement of a rotating shaft, comprising: - a basic gearbox component, - a rotating shaft rotatably mounted on the gearbox base component, - a first wrapping element mounted so as to be movable around the circumference of the gearbox base component, - a second wrapping element mounted at a distance from the first wrapping element on the basic gearbox component so as to be movable around its circumference, and which is aligned parallel to the first wrapping element, - a spring-elastic band guided between the first wrapping means and the second wrapping means, which is bent in a wave-like manner, such that at least a first wave crest of the band is supported on the first wrapping means and at least a first wave trough of the band is supported on the second wrapping means, as well as - at least one first actuating means coupled to the spring-elastic band, which determines the position and orientation of a first coupling section of the spring-elastic band as a function of the rotational position of the rotating shaft, and at least one second actuating means coupled to the spring-elastic band, which determines the position and orientation of a second coupling section of the spring-elastic band, different from the first coupling section, as a function of the rotational position of the rotating shaft, wherein at most one first actuating means and at most one second actuating means are coupled to the spring-elastic band over a length of a half-shaft of the spring-elastic band.

[0006] The basic gearbox component can be designed as a base frame to which the gearbox components are mounted or attached. Alternatively, the basic gearbox component can be designed as a gearbox housing that encloses a cavity in which the gearbox components are arranged, in particular mounted or attached.

[0007] Depending on the drive type of the gearbox, a drive torque can be selectively introduced or discharged via the rotating shaft.

[0008] The first and second wrapping elements limit the deflection, i.e., the amplitude, of the spring-elastic band from two opposite sides. These elements are unpowered and simply support the undulating band from two opposite sides, i.e., at each wave crest and trough, respectively, for each wavelength. Due to the undulating movement of the band and the simultaneous rotation of the rotating shaft, the respective wave crest rests against the first wrapping element, and the respective wave trough rests against the second wrapping element. To prevent frictional relative movement between the band and the wrapping element, the wrapping element passively rotates synchronously with the movement of the band's wave. This rotation is achieved by means of two rotatably mounted rollers.

[0009] The first and second securing elements can each be formed by a continuous belt, chain, or other traction element. The belt can have a continuous, solid, smooth surface. In the case of chains or other traction elements, it can be connected to a corresponding continuous, solid, smooth band.

[0010] The spring-elastic band can be a leaf spring made of spring steel, which has a flat shape in its relaxed state.

[0011] The undulating, curved shape of the resilient band is achieved when the band is guided between the first and second encircling elements with respect to its amplitude, and the first and second adjusting elements define the band's undulating shape. For this purpose, it is sufficient if only one first adjusting element and only one second adjusting element are provided for each half-wave of the resilient band, defining its slope, i.e., its position and orientation, at two discrete points along the band. In the remaining length of the band, its undulating shape is automatically established by its resilient properties. The undulating shape of the band can, in particular, correspond to a sinusoidal waveform or at least an approximately sinusoidal waveform.

[0012] The corrugated, spring-elastic band can, in principle, have any length, in which case several gear units can be arranged in series. The spring-elastic band can therefore be extended as desired. However, at most one first actuating element and at most one second actuating element are coupled to the spring-elastic band along each half-shaft.

[0013] The spring-elastic band can be connected over a flat surface to a flexible surface body in order to transfer the instantaneous wave-like course of the spring-elastic band to the flexible surface body.

[0014] The resilient band has a minimum width such that at least the first and second wrapping elements can rest against the band from two opposite sides, and the first and second adjusting elements can be decoupled from the band, in particular by clamping them. To increase the effective surface area, the resilient band can be connected to the flexible surface body. The flexible surface body then performs a corresponding wave-like movement, like the band. The flexible surface body does not necessarily have to be resilient like the band. Rather, it may be sufficient if the surface body is merely flexible enough to assume the corresponding wave-like shape of the band. The flexible surface body could, for example, be a tarpaulin, a cloth, or another web material.This can be clamped between at least one first gearbox with a first spring-elastic band and at least one second gearbox with a second spring-elastic band.

[0015] Alternatively, the flexible surface body can be formed in one piece with at least one spring-elastic band. In this respect, the flexible surface body can also be made of spring steel.

[0016] The flexible surface body can, in its planar form, have a rectangular or square contour with a first side edge and a second side edge opposite the first side edge, and the first side edge of the flexible surface body can be connected to a first spring-elastic band of a first transmission according to one of the described embodiments, and the second side edge of the flexible surface body can be connected to a second spring-elastic band of a second transmission according to one of the described embodiments.

[0017] The first adjusting device and / or the second adjusting device may have a clamping device designed to grip and clamp the spring-elastic band at an edge section of the spring-elastic band.

[0018] The clamping device serves to attach the first and / or second adjusting element to the spring-elastic band. For this purpose, the clamping device can, for example, have two tongues arranged at a distance from each other. Due to the distance between the tongues, the spring-elastic band can be inserted between them and connected to them. Clamping the spring-elastic band between the two tongues does not necessarily have to be achieved by a clamping force. Alternatively, the spring-elastic band can also be attached between the two tongues in other ways, for example by screws, rivets, a weld, or by gluing.

[0019] The first actuating device and the second actuating device can each be coupled to the rotary shaft via an actuating gear unit.

[0020] In a driving embodiment, the actuating gear unit is configured to specify the respective position and orientation of the first or second actuating means, so that the spring-elastic band is guided accordingly by the actuating means. This ensures that the spring-elastic band, at the connection points with the actuating means, performs the desired wave-like movement between the first and second wrapping means. This embodiment corresponds to using the gear unit in conjunction with a driving motor connected to the rotating shaft to generate the wave-like movement of the spring-elastic band.

[0021] In an alternative embodiment, the actuating mechanism is designed to accommodate a predetermined wave-like movement of the spring-elastic band across the instantaneous position and orientation of the first and second actuating elements, such that the actuating mechanism converts the movements of the first and second actuating elements into a driven, rotary movement of the rotating shaft. This embodiment corresponds to using the gearbox in conjunction with a driven generator connected to the rotating shaft to convert the wave-like movement of the spring-elastic band into a torque acting on the rotating shaft, which drives the generator, for example, to generate electrical energy in the case of an electric generator.

[0022] The actuating device can have a crankshaft connected to or forming the rotating shaft, with a crankpin engaging in an elongated hole of a slide to couple a linear movement of the slide along a linear guide of the slide with the rotary movement of the crankpin, wherein the first actuating means or the second actuating means is pivotably mounted on the slide by means of a pivot bearing, and the pivoting movement of the first actuating means or the second actuating means is coupled to the linearly adjustable connecting rod, which has a connecting rod bearing on which the crankpin, guided linearly adjustable in the elongated hole, rotatably engages, so that the rotation of the crankshaft and the superimposed movement of the first actuating means or the second actuating means are, on the one hand, linear along the linear guide of the slide and, on the other hand, synchronously with this, the pivoting movement about the pivot axis of the pivot bearing relative to the slide.is coupled.

[0023] The actuating device can thus, in the version driven by a drive motor via the rotating shaft, have a crankshaft connected to or forming the rotating shaft, with a crankpin that engages in an elongated hole of a slide in order to adjust the slide linearly along a linear guide of the slide depending on the rotational movement of the crankpin, wherein the first actuating means or the second actuating means is pivotably mounted on the slide by means of a pivot bearing, and is pivotable by means of a connecting rod that is linearly adjustable relative to the pivot bearing and has a connecting rod bearing on which the crankpin, guided linearly adjustable in the elongated hole, rotatably engages.so that, when the crankshaft rotates, the first or second adjusting device is adjusted linearly along the linear guide of the slide and, synchronously with its linear movement, is also pivoted about the pivot axis of the swivel bearing relative to the slide.

[0024] The first actuating device can be coupled to a first rotary shaft via a first actuating gear unit, the second actuating device can be coupled to a second rotary shaft via a second actuating gear unit, and the first rotary shaft can be connected to the second rotary shaft via a coupling device that synchronizes the movement of the first actuating device with the movement of the second actuating device.

[0025] The first and second actuating devices can be of identical construction. Each actuating device synchronizes the pivoting and reciprocating movement of the first or second actuating device with the rotary movement of the associated rotating shaft. The first and second actuating devices are arranged at a predetermined distance from each other relative to the flexible belt. Depending on how this distance is determined, the first and second actuating devices each have exactly one vertical position and exactly one pivot position, which is adapted to the local slope of the corrugated, flexible belt at the point where the first and second actuating devices are coupled to the belt.

[0026] The wavelength of the wave-shaped, spring-elastic band can be determined by the distance of the first adjusting means from the second adjusting means and the ratio of the respective crank radius of the crankshaft to the distance of the axis of rotation of the swivel bearing from the center line of the elongated hole.

[0027] The slide can have a first adjustment device with which the distance of the axis of rotation of the pivot bearing of the first adjusting means or of the second adjusting means from the center line of the elongated hole can be adjusted.

[0028] For example, the swivel bearing can be mounted on the carriage in a height-adjustable manner and optionally lockable in different height positions on the carriage.

[0029] The crankpin of the crankshaft can be simply cranked to form an additional crank radius, which optionally increases the effective crank radius of the crankshaft to shorten the wavelength of the wave-like tensioned, spring-elastic band, or decreases it to lengthen the wavelength of the wave-like tensioned, spring-elastic band.

[0030] To change the effective crank radius, an additional link can be provided, which is arranged on a side of the slide or the elongated hole that assigns the connecting rod bearing to the connecting rod bearing and couples the crankshaft to the connecting rod bearing.

[0031] With the linearly movable slide's connection remaining unchanged, altering the effective crank radius changes the maximum swivel angle of the first or second actuating device. A reduction in the effective crank radius decreases the maximum swivel angle, while a lengthening of the effective crank radius increases the maximum swivel angle.

[0032] The amplitude of the undulating, spring-elastic band can be determined by the distance between a first contact surface of the first wrapping element and a second contact surface of the second wrapping element. The first contact surface of the first wrapping element is positioned at the same height as the pivot axis of the respective actuating element or clamping device when it is in its highest, i.e., maximum, position. Similarly, the second contact surface of the second wrapping element is positioned at the same height as the pivot axis of the respective actuating element or clamping device when it is in its lowest, i.e., minimum, position.

[0033] The problem is also solved by using a transmission according to one of the described embodiments to generate a wave-like movement of the spring-elastic band, in that the rotating shaft forms a drive shaft to which a motor is connected which generates a torque which is introduced into the drive shaft, in particular in a land vehicle, a watercraft, an aircraft, a liquid pump, a gas pump or a powder conveying device.

[0034] The problem is also solved alternatively by using a gearbox according to one of the described embodiments to provide a torque at the rotating shaft, in that the wave-shaped tensioned, spring-elastic band is set into wave-like motion by a fluid flow flowing along the band, so that a torque is generated at the rotating shaft due to the wave-like motion of the band, which forms an output shaft from which the torque can be tapped, in particular for driving a generator, especially an electric generator for generating electrical energy, in particular in the design of a wind turbine generator or a hydroelectric generator.

[0035] The problem is also solved alternatively by using a gearbox according to one of the described embodiments to generate a wave-like movement of a flexible projection surface connected to the at least one spring-elastic band of the gearbox.

[0036] The flexible projection surface can be a component of a hologram projector. The hologram projector can optionally be a 2D hologram projector or a 3D hologram projector.

[0037] In the case of a 2D hologram projector, a free side edge of the spring-elastic band of the gearbox or the flexible projection surface connected to the spring-elastic band can have a series of multiple light sources, in particular LEDs (light-emitting diodes). The multiple light sources, in particular LEDs, can be controlled by a projector control device. Control can include switching on and / or off each individual light source or LED, or a group of multiple light sources or LEDs. Furthermore, the projector control device can also control the respective emitted color of the light sources. The control of the light sources or LEDs is synchronized with the movement of the gearbox, so that the light sources or LEDs...The LEDs are controlled depending on the instantaneous wave pattern of the spring-elastic band or the associated flexible projection surface. The side edge of the spring-elastic band or the associated flexible projection surface carries the multiple light sources or LEDs in a linear sequence, so that, depending on the instantaneous shape of the wave pattern of the spring-elastic band or the associated flexible projection surface, they occupy different positions within a plane of the surface, perpendicular to the longitudinal extent of the wave motion. By optically controlling the light sources or LEDs differently as they move in a wave-like manner within the plane of the surface, a virtual image can be generated in this plane.

[0038] In the case of a 3D hologram projector, the surface of the spring-loaded belt of the gearbox or the flexible projection surface connected to the spring-loaded belt can have a two-dimensional matrix of rows and columns of multiple light sources, in particular LEDs (light-emitting diodes). Due to the wave-like movement of the spring-loaded belt of the gearbox or the flexible projection surface connected to it, the light sources or LEDs can rise and fall in a wave-like motion when the gearbox is driven, so that these columns and rows of multiple light sources or LEDs rise and fall into the third dimension, depending on the instantaneous shape of the wave of the spring-loaded belt or the associated flexible projection surface.

[0039] The flexible projection surface can, for example, also be a flexible, transparent LED screen that is driven in a wave-like manner by at least one gearbox according to one of the described embodiments.

[0040] Specific embodiments of the invention are explained in more detail in the following description with reference to the accompanying figures. Individual features or combinations of features of these exemplary embodiments may, regardless of the specific context in which they are mentioned, and optionally also individually or in further combinations, represent advantageous features of alternative embodiments of the invention.

[0041] They show: Fig. 1 to 4 a first embodiment of a transmission with a spring-elastic band which is guided between a first actuating means and a second actuating means with a wavelength, Fig. 5 to 8 a second embodiment of a transmission with a spring-elastic band which is guided between a first actuating means and a second actuating means with two wavelengths, Fig. 9 and Fig. 10 a third embodiment of a transmission with a spring-elastic band which is guided between a first actuating means and a second actuating means with a long wavelength, Fig. 11 and Fig. 12 a fourth embodiment of a transmission with a spring-elastic band which is guided between a first actuating means and a second actuating means with a mean wavelength, Fig. 13 and Fig. 14 a fifth embodiment of a transmission with a spring-elastic band which is guided between a first actuating means and a second actuating means with a short wavelength, Fig. 15 and Fig. 16 a sixth embodiment of a transmission with a spring-elastic band which is guided between a first actuating means and a second actuating means with a wavelength one and a half times that of the transmission gear, Fig. Figures 17 to 19 show an exemplary embodiment of an actuating gear device for the first actuating means and the second actuating means in perspective view, in a front view and a side view. Fig. 20 to 22 three different gear positions of the gearbox according to Fig. 5 and Fig. 6 to illustrate the continuous wave movements of the spring-elastic band, Fig. 23 to 28 three different configurations of a modified actuating gear device with a positively cranked crank pin, an uncranked crank pin and a negatively cranked crank pin, Fig. 29 and Fig. 30 two alternative configurations with a cranked crankpin and an uncranked crankpin to generate a short wavelength, Fig. 31 and Fig. 32 two alternative configurations with a cranked crankpin and an uncranked crankpin to generate a mean wavelength, Fig. 33 and Fig. 34 two alternative configurations with a cranked crankpin and an uncranked crankpin to generate a long wavelength, and Fig. 35 a further view on the embodiment according to Fig. 3 with the additional representation of the second actuating device and a flexible surface body formed in one piece with the two spring-elastic bands.

[0042] In the Fig. 1 to Fig. Figure 4 shows a basic first embodiment of a transmission 1 according to the invention.

[0043] The gearbox 1 serves to convert a drive torque between a wave-like movement of a spring-elastic band 2 and a rotary movement of a rotating shaft 3.

[0044] The gearbox 1 has a gearbox base component 4. In the present embodiment, the gearbox base component 4 is designed as a base frame on which the gearbox components are mounted.

[0045] The rotating shaft 3 is rotatably mounted on the gearbox base component 4. A motor (not shown) can optionally be connected to the rotating shaft 3 to introduce torque into the gearbox 1. Alternatively, a generator (not shown) can be connected to the rotating shaft 3 to transmit torque out of the gearbox 1.

[0046] The gearbox 1 also has a first wrapping element 5.1 mounted circumferentially on the gearbox base component 4 and a second wrapping element 5.2 mounted circumferentially on the gearbox base component 4 at a distance A from the first wrapping element 5.1, and aligned parallel to the first wrapping element 5.1. In the present embodiments, the first wrapping element 5.1 and the second wrapping element 5.2 are each formed by a flat belt 6, which is guided without drive over two rotatably mounted rollers 7. The rollers can be mounted directly on the gearbox base component 4 or on separate bearing devices, which can be rigidly connected to the gearbox base component 4.

[0047] The spring-elastic band 2 is guided between the first wrapping element 5.1 and the second wrapping element 5.2. The spring-elastic band 2 is arranged in a wave-like, bent form such that at least one first wave crest B1 of the band 2 is supported on the first wrapping element 5.1 and at least one first wave trough T1 of the band 2 is supported on the second wrapping element 5.2.

[0048] The transmission 1 has a first actuating means 8.1 coupled to the spring-elastic band 2, which determines the position and orientation of a first coupling section 2.1 of the spring-elastic band 2 as a function of the rotational position of the rotating shaft 3, and at least one second actuating means 8.2 coupled to the spring-elastic band 2 at another location, which determines the position and orientation of a second coupling section 2.2 of the spring-elastic band 2, different from the first coupling section 2.1, as a function of the rotational position of the rotating shaft 3, wherein at most one first actuating means 8.1 and at most one second actuating means 8.1 is coupled to the spring-elastic band 2 along a length of a half-shaft HW of the spring-elastic band 2.

[0049] The spring-elastic band 2 can, in particular, be a leaf spring made of spring steel, which has a planar shape in its relaxed state. In a state installed in the gearbox 1, the spring-elastic band 2 has a wave-like, in particular sinusoidal shape or at least an approximately sinusoidal shape due to the localized specification of a respective position and orientation of the first actuating means 8.1 and the second actuating means 8.2.

[0050] In Fig. Figure 3 schematically illustrates how the resilient band 2 can be connected over a surface to a flexible surface body 9 in order to transfer the instantaneous wave-like shape of the resilient band 2 to the flexible surface body 9. The flexible surface body 9 causes a corresponding increase in surface area, which assumes a wave-like shape corresponding to the instantaneous wave-like shape of the resilient band 2. The flexible surface body 9 can be made of the same material as the resilient band 2 or, alternatively, of a different material. The flexible surface body 9 can be attached to the resilient band 2 or, if necessary, formed integrally with the resilient band 2.

[0051] The flexible surface body 9, in its planar form, can have a rectangular or square contour with a first side edge S1 and a second side edge S2 opposite the first side edge S1. The first side edge S1 of the flexible surface body 9 can, as shown in Fig. 3 is shown, with a first spring-elastic band 2 of a first gearbox 1 according to one of the described embodiments and the second side edge S2 of the flexible surface body 9 can be connected to a second spring-elastic band 2 of a second gearbox 1 according to one of the described embodiments.

[0052] The Fig. 1 to Fig. Figure 4 shows, for example, a configuration of the gear unit 1 in which the spring-elastic band 2 forms exactly one solid wave between the first actuating device 8.1 and the second actuating device 8.2. Accordingly, in this configuration, the spring-elastic band 2 has exactly one first wave crest B1 and exactly one first wave trough T1.

[0053] The Fig. 5 to Fig. Figure 8, however, shows a different configuration of the gear 1, in which the spring-elastic band 2 forms exactly two solid waves between the first actuating device 8.1 and the second actuating device 8.2. Accordingly, in this configuration, the spring-elastic band 2 has a first wave crest B1 and a second wave crest B2, as well as a first wave trough T1 and a second wave trough T2.

[0054] In all illustrated versions and configurations, the gearbox is always shown with only a single first actuating device 8.1 and only a single second actuating device 8.2. The corrugated, spring-elastic band 2 can, in principle, have any length, in which case several gearboxes 1 can be arranged in series as multiple units. The spring-elastic band 2 can thus be extended as desired. However, at most one first actuating device 8.1 and at most one second actuating device 8.2 are coupled to the spring-elastic band 2 along each half-shaft HW of the band.

[0055] In the present embodiments, the first actuating means 8.1 and the second actuating means 8.2 each have a clamping device 10.1, 10.2, which is designed to grip and clamp the spring-elastic band 2 at an edge section in the area of ​​the first coupling section 2.1 and the second coupling section 2.2 of the spring-elastic band 2.

[0056] The respective first actuating device 8.1 and the respective second actuating device 8.2 are each coupled to the rotary shaft 3 via an actuating gear unit 11.

[0057] In the illustrated embodiments, the actuating devices 11.1, 11.2 are driven by crankshafts 12. To synchronize the two actuating devices 11.1, 11.2, the first crankshaft 12.1 of the first actuating device 11.1 and the second crankshaft 12.2 of the second actuating device 11.2 rotate in the same direction. The two common directions of rotation can optionally both be clockwise or, alternatively, both be counterclockwise, as shown in Fig. 2 is shown by the arrows P5.

[0058] Inventive embodiments of such an actuating device 11 are described in Fig. 17 to Fig. 34 shown. In particular the Fig. 17 to Fig. 19, as well as Fig. 25 and Fig. Figure 26 shows a version with an unbent crank pin and the Fig. 23 and Fig. 24, as well as Fig. 27 and Fig. Figure 28 shows further modified versions with a cranked crank pin.

[0059] The actuator 11 according to Fig. 17 has a crankshaft 12 connected to the rotating shaft 3, which has a crankpin 13.

[0060] The respective crankshaft 12 of an actuating device 11 can, for example, be connected to a first bevel gear 14.1 ( Fig. 3) connected to a second bevel gear 14.2, which meshes with the rotating shaft 3. The crankshaft 12 is connected to the rotating shaft 3 via the first bevel gear 14.1 and the second bevel gear 14.2. Several crankshafts 12 of different actuating devices 11 can be connected to a common rotating shaft 3 via such a bevel gear stage.

[0061] The respective crankshaft 12 of an actuating device 11 is provided with the crank pin 13, which engages in a slot 15 of a slide 16 in order to adjust the slide 16 linearly in the direction of arrow P1 along a linear guide 17 of the slide 16 as a function of the rotational movement of the crank pin 13.

[0062] The first actuating device 8.1 or the second actuating device 8.2 is pivotably mounted on the slide 16 by means of a pivot bearing 18 in the direction of arrow P2, and is pivotable by means of a connecting rod 19 which is linearly adjustable relative to the pivot bearing 18 in the direction of arrow P3. The connecting rod 19 has a connecting rod bearing 20 on which the crankpin 13 of the crankshaft 12, which is linearly adjustable in the elongated hole 15, rotatably engages, so that when the crankshaft 12 is rotated, the first actuating device 8.1 or the second actuating device 8.2 is, on the one hand, linearly adjusted along the linear guide 17 of the slide 16 in the direction of arrow P1 and, on the other hand, is also pivoted about the pivot axis in the direction of arrow P2 of the pivot bearing 18 relative to the slide 16, synchronously with its linear movement in the direction of arrow P1.

[0063] In the illustrated embodiments, the first actuating device 8.1 is coupled to a first rotary shaft 3.1 via a first actuating gear unit 11.1, the second actuating device 8.2 is coupled to a second rotary shaft 3.2 via a second actuating gear unit 11.2, and the first rotary shaft 3.1 is connected to the second rotary shaft 3.2 via a coupling device 21, which synchronizes the movement of the first actuating device 8.1 with the movement of the second actuating device 8.2. The coupling device 21 can, for example, be formed by a coupling shaft 21a. In the simplest case, the coupling shaft 21a, together with the first rotary shaft 3.1 and the second rotary shaft 3.2, can be designed as a single, integrated shaft, as shown. In alternative embodiments of the coupling device 21, torque transmitters with gears, chains, belts, or bands can be used instead of a coupling shaft 21a.

[0064] The wavelength of the wave-shaped, spring-elastic band 2 is determined by the distance AB of the first adjusting means 8.1 from the second adjusting means 8.2 and the ratio of the respective crank radius of the crankshaft 12 to the distance AS of the axis of rotation DA of the swivel bearing 18 from the center line M of the elongated hole 15.

[0065] As especially in Fig. 30, Fig. 32 and Fig. As can be seen from Figure 34, the slide 16 can have a first adjusting device 22.1 with which the distance AS of the axis of rotation DA of the pivot bearing 18 of the first adjusting means 8.1 or of the second adjusting means 8.2 from the center line M of the elongated hole 15 can be adjusted, as indicated by the arrow P4. Fig. Figure 30 shows a configuration for short wavelengths in which the pivot bearing 18, the first actuating device 8.1, or the second actuating device 8.2 is positioned closer to the center line M of the elongated hole 15. This is indicated by the small height H1.

[0066] In Fig. Figure 32 shows a configuration for medium wavelengths in which the pivot bearing 18, the first actuating device 8.1, or the second actuating device 8.2 is positioned at a medium distance from the centerline M of the elongated hole 15. This is indicated by the mean height H2.

[0067] In Fig. Figure 34 shows a configuration for long wavelengths in which the pivot bearing 18, the first actuating device 8.1, or the second actuating device 8.2 is positioned further away from the center line M of the elongated hole 15. This is indicated by the large height H3.

[0068] In other versions, such as this one in particular in Fig. 23, Fig. 24 and Fig. 29 or in Fig. 27, Fig. 28 and Fig. As shown in Figure 33, the crankpin 13 of the crankshaft 12 can form an additional crank radius, which optionally increases the effective crank radius of the crankshaft 12 ( Fig. 23, Fig. 24, Fig. 29), to shorten or reduce the wavelength of the wave-like stretched, spring-elastic band 2 ( Fig. 27, Fig. 28 and Fig. 33), in order to extend the wavelength of the wave-shaped, spring-elastic band 2, be simply cranked, i.e. have a crank 23.

[0069] The amplitude of the wave-shaped, spring-elastic band 2 is determined by the distance of a first contact surface K1 of the first wrapping means 5.1 from a second contact surface K2 of the second wrapping means 5.2.

Claims

[1] Gearbox (1) for converting a drive torque between a wave-like movement of a spring-elastic band (2) and a rotary movement of a rotating shaft (3), comprising: - a basic gearbox component (4), - a rotating shaft (3) rotatably mounted on the basic gearbox component (4), - a first wrapping element (5.1) mounted so as to be movable around the circumference of the basic transmission component (4), - a second wrapping element (5.2) mounted circumferentially on the basic gearbox component (4) at a distance (A) from the first wrapping element (5.1) and aligned parallel to the first wrapping element (5.1), - a spring-elastic band (2) guided between the first wrapping means (5.1) and the second wrapping means (5.2), which is bent in a wave-like manner, such that at least a first wave crest (B1) of the band (2) is supported on the first wrapping means (5.1) and at least a first wave trough (T1) of the band (2) is supported on the second wrapping means (5.2), as well as - at least one first actuating means (8.1) coupled to the spring-elastic band (2), which determines the position and orientation of a first coupling section (2.1) of the spring-elastic band (2) as a function of the rotational orientation of the rotating shaft (3), and at least one second actuating means (8.2) coupled to the spring-elastic band (2), which determines the position and orientation of a second coupling section (2.2) of the spring-elastic band (2) different from the first coupling section (2.1) as a function of the rotational orientation of the rotating shaft (3), wherein at most one first actuating means (8.1) and at most one second actuating means (8.2) is coupled to the spring-elastic band (2) over a length of a half-shaft (HW) of the spring-elastic band (2). [2] Gearbox (1) according to claim 1, characterized by , that the resilient band (2) is a leaf spring made of spring steel which has a flat shape in its relaxed state. [3] Gearbox (1) according to claim 1 or 2, characterized by , that the spring-elastic band (2) is connected over a surface to a flexible surface body (9) in order to transfer the instantaneous wave-like course of the spring-elastic band (2) to the flexible surface body (9). [4] Gearbox (1) according to claim 3, characterized by , that the flexible surface body (9) in its planar shape has a rectangular or square contour with a first side edge (S1) and a second side edge (S2) opposite the first side edge (S1), and the first side edge (S1) of the flexible surface body (9) is connected to a first spring-elastic band (2) of a first transmission (1) according to one of claims 1 to 3, and the second side edge (S2) of the flexible surface body (9) is connected to a second spring-elastic band (2) of a second transmission (1) according to one of claims 1 to 3. [5] Gearbox (1) according to any one of claims 1 to 4, characterized by , that the first adjusting means (8.1) and / or the second adjusting means (8.2) has a clamping device (10.1, 10.2) which is designed to grip and clamp the spring-elastic band (2) at an edge section of the spring-elastic band (2). [6] Gearbox (1) according to any one of claims 1 to 5, characterized by , that the first actuating means (8.1) and the second actuating means (8.2) are each coupled to the rotary shaft (3) via an actuating gear unit (11). [7] Gearbox (1) according to claim 6, characterized by, that the actuating device (11) has a crankshaft (12) connected to or forming the rotating shaft (3) with a crankpin (13) which engages in an elongated hole (15) of a slide (16) in order to adjust the slide (16) linearly along a linear guide (17) of the slide (16) depending on the rotational movement of the crankpin (13), wherein the first actuating means (8.1) or the second actuating means (8.2) is pivotably mounted on the slide (16) by means of a pivot bearing (18), and is pivotable by means of a connecting rod (19) which is linearly adjustable relative to the pivot bearing (18) and which has a connecting rod bearing (20) on which the crankpin (13) which is linearly adjustable in the elongated hole (15) rotatably engages, so that when the crankshaft (12) is rotated the first actuating means (8.1) or the second actuating means (8.2)2) on the one hand linearly adjusted along the linear guide (17) of the slide (16) and on the other hand pivoted synchronously to its linear movement about the pivot axis of the pivot bearing (18) relative to the slide (16). [8] Gearbox (1) according to claim 7, characterized by , that the first actuating means (8.1) is coupled to a first rotary shaft (3.1) via a first actuating gear assembly (11.1) according to claim 7, the second actuating means (8.2) is coupled to a second rotary shaft (3.2) via a second actuating gear assembly (11.2) according to claim 7, and the first rotary shaft (3.1) is connected to the second rotary shaft (3.2) via a coupling means (21) which synchronizes the movement of the first actuating means (8.1) with the movement of the second actuating means (8.2). [9] Gearbox (1) according to claim 7 or 8, characterized by, that the wavelength of the wave-shaped, spring-elastic band (2) is determined by the distance (AS) of the first adjusting means (8.1) from the second adjusting means (8.2) and the ratio of the respective crank radius of the crankshaft (12) to the distance of the axis of rotation (DA) of the pivot bearing (18) from the center line (M) of the elongated hole (15), in particular the slide (16) has a first adjusting device (22.1) with which the distance (AS) of the axis of rotation (DA) of the pivot bearing (18) of the first adjusting means (8.1) or of the second adjusting means (8.2) from the center line (M) of the elongated hole (15) can be adjusted. [10] Gearbox (1) according to any one of claims 7 to 9, characterized by, that the crankpin (13) of the crankshaft (12) is simply cranked to form an additional crank radius, which optionally increases the effective crank radius of the crankshaft (12) to shorten the wavelength of the wave-shaped, spring-elastic band (2), or decreases it to lengthen the wavelength of the wave-shaped, spring-elastic band (2). [11] Gearbox (1) according to any one of claims 7 to 10, characterized by, that the amplitude of the wave-shaped, spring-elastic band (2) is also determined by the distance of a first contact surface (K1) of the first wrapping means (5.1) from a second contact surface (K2) of the second wrapping means (5.2), in particular the gearbox (1) has a second adjusting device which is designed to variably adjust the distance of the first contact surface (K1) of the first wrapping means (5.1) from the second contact surface (K2) of the second wrapping means (5.2). [12] Use of a transmission (1) according to any one of claims 1 to 11 for generating a wave-like movement of the spring-elastic band (2), wherein the rotating shaft (3) forms a drive shaft to which a motor is connected which generates a torque which is introduced into the drive shaft, in particular in a land vehicle, a watercraft, an aircraft, a liquid pump, a gas pump or a powder conveying device. [13] Use of a transmission (1) according to any one of claims 1 to 11 for providing a torque at the rotating shaft (3) by setting the wave-shaped, spring-elastic band (2) into wave-like motion by a fluid flow flowing along the band (2), so that, due to the wave-like motion of the band (2), a torque is generated at the rotating shaft (3), which forms an output shaft from which the torque can be taken off, in particular for driving a generator, in particular an electric generator for generating electrical energy, in particular in the design of a wind turbine generator or a hydroelectric generator. [14] Use of a transmission (1) according to any one of claims 1 to 11 for generating a wave-like movement of the spring-elastic band (2) and / or for generating a wave-like movement of a flexible projection surface connected to the at least one spring-elastic band of the transmission, in particular a flexible projection surface of a 2D hologram projector and / or a 3D hologram projector.

Images