Device for transmitting movement using a lever and bearings

Abstract

The present invention relates to a device for transmitting movement using at least one lever (3) associated with a fixed or moveable support point and connected to one or more pushing elements (5) that transmit the movement to bearings (6) disposed on an output shaft (7). The shaft may be normal or eccentric, and the bearing may be normal or freewheel, ensuring continuous and stable transmission. The device may include extensions (3a) on the levers to optimize input power and input motors (8a) and / or output motors (8b) to improve movement stability. The invention provides a simplified and scalable solution that can be applied in transportation, power generation and industry, which eliminates the need for gears, chains, belts or universal joints, thereby reducing wear and ensuring efficient and uniform transmission.

Description

[0001] DESCRIPTION

[0002] MOTION TRANSMISSION DEVICE WITH LEVER AND BEARINGS

[0003] Technical field

[0004] The invention relates to a motion transmission device that employs levers and bearings to transfer and stabilize forces to an output shaft. More specifically, the invention falls within the field of mechanical transmission systems applicable to mobility devices, power generation, and industrial equipment. The proposed device enables continuous and stable motion transmission, avoiding load peaks and reducing the power fluctuations common in systems based on gears, chains, belts, or drive shafts. Its simplified design facilitates integration into electric vehicles, bicycles, scooters, or boats, where smooth and efficient movement is required, and into wind or hydroelectric generators, where the stability of the output shaft is essential for energy conversion.Furthermore, the invention is applicable in industrial environments that demand precise and constant motion transmission, contributing to improved performance and reduced wear of components.

[0005] Background of the invention

[0006] Currently, known state-of-the-art mechanisms are based on interlocking gears that allow the operation of a shaft where there is a single point of drive, or where, if several points of drive are required, the force exerted on these points must be approximately equal, which implies limitations. All these mechanisms or devices have problems with the controlled maintenance of the generated power, commonly known as peaks, which cause performance drops in the components where they are installed, however slight, affecting their use.

[0007] In order to solve this problem, the applicant himself registered the Spanish utility model ES 1 074 976 U, which describes a force-multiplying gear mechanism characterized in that it comprises a plurality of toothed wheels located on two shafts and rigidly attached to two actuating levers, such that said toothed wheels are meshed with each other in pairs, actuated by means of said levers, and exerting a multiplying effect on their movement on said shafts by means of a chain and sprocket assembly, rigidly attached to said upper and lower shafts through a plurality of bearings.

[0008] Similarly, utility model ES 1 179 710 describes a device for optimizing the performance of engines and propulsion systems, characterized in that it comprises at least three levers located on a frame, and where each of said levers is associated with at least one gear housed in a chassis; and where each of said levers is associated with a connecting rod configured with an orientation of 120° on them, all of which is associated with a shaft responsible for transmitting the movement.

[0009] The technical problem with these known mechanisms is that they do not effectively address load peaks and variations in power transmission, resulting in unstable movement, efficiency losses, and premature component wear. The present invention arises as an improvement that simplifies the structure and optimizes motion transmission through a system based on levers and bearings, capable of providing more uniform and stable displacement to a standard or eccentric output shaft. Additionally, the invention introduces the possibility of a fixed or movable lever fulcrum, standard or free-wheeling output shaft bearings, and the incorporation of additional levers to optimize input power, all while ensuring continuous and stable transmission that broadens its applicability in the mobility, energy generation, and industrial sectors.

[0010] Description of the invention

[0011] The present invention solves the technical problem arising from the instability and efficiency losses in the motion transmission of known systems, which generate load peaks and fluctuations in the transmitted power. To this end, a motion transmission device with a lever and bearings is proposed, which stabilizes and optimizes the transfer of forces to an output shaft, ensuring continuous, uniform, and kickback-free movement.

[0012] The device comprises an input means associated with at least one lever, which in turn is connected to a rocker arm and one or more pushers linked by bearings mounted on an output shaft. This shaft can be either standard or eccentric, thus expanding the possibilities for integration into various mechanical systems. The lever's fulcrum can be configured as fixed, in which case the transmission to the output shaft is achieved solely through the pushers, or as movable, for example, by means of a rocker arm connected to the output shaft (or to a horizontal movable fulcrum not connected to the output shaft), allowing for greater versatility and adaptability of the system.

[0013] The bearings on the output shaft can be standard or freewheel bearings, both ensuring smooth motion transmission. Freewheel bearings offer the advantage of unidirectional rotation without locking or kickback. Furthermore, the levers can incorporate extensions beyond the fulcrum, optimizing the lever action and maximizing the use of input power.

[0014] Thanks to this configuration, the invention offers significant advantages over the prior art. First, it eliminates the need for gears, chains, belts, or drive shafts, simplifying the assembly, reducing mechanical wear, and lowering maintenance costs. Second, it distributes forces evenly, avoiding the load peaks characteristic of conventional systems, resulting in more efficient and stable movement. Third, its scalable design allows for the addition of multiple levers, pushers, and bearings on the same shaft, adapting the speed and power output to different applications without compromising efficiency.

[0015] The invention is applicable in a wide range of technological scenarios, including mobility, energy generation, and industry. In transportation systems such as bicycles, scooters, electric vehicles, or boats, the device ensures stable and uniform power transmission, improving efficiency and reducing energy consumption by avoiding the load peaks characteristic of traditional systems. In the field of energy generation, it is particularly advantageous in wind turbines and hydroelectric systems, where stable power transmission is essential for optimizing energy conversion. Specifically, the device allows for its implementation in waterways, ditches, or natural streams with variable flow rates, guaranteeing continuous and stable movement without the need for additional infrastructure or complex flow regulation systems.Thanks to this versatility, the device offers a sustainable and efficient solution for both large-scale applications and resource-constrained environments, extending the lifespan of components and reducing maintenance costs.

[0016] Thus, the invention provides a robust, versatile system adaptable to various sectors such as mobility, power generation or industry, where it is essential to guarantee a continuous, stable and efficient transmission of motion.

[0017] Brief description of the figures

[0018] The following section briefly describes a series of drawings that help to better understand the invention and that are expressly related to an embodiment of said invention which is presented as a non-limiting example thereof.

[0019] FIG 1. Shows a perspective view of a first practical embodiment of the motion transmission device that employs levers and bearings.

[0020] FIG 2. Shows a perspective view of a second practical embodiment of the motion transmission device employing levers and bearings.

[0021] FIG 3. Shows a perspective view of a third practical embodiment of the motion transmission device employing levers and bearings.

[0022] FIG 4. Shows a perspective view of a fourth practical embodiment of the motion transmission device employing levers and bearings.

[0023] FIG 5. Shows a perspective view of a fifth practical embodiment of the motion transmission device employing levers and bearings.

[0024] FIG 6. Shows a perspective view of a sixth practical embodiment of the motion transmission device employing levers and bearings.

[0025] FIG 7. Shows a perspective view of a seventh practical embodiment of the motion transmission device employing levers and bearings.

[0026] Detailed Exposition of an Embodiment of the Invention In a preferred embodiment, the motion transmission device comprises an input means (1) that acts as the initial motion source and may consist of an electric or mechanical motor, a wind turbine, a hydraulic generator, direct user action, or any generator or source of hydraulic, wind, wave, tidal, or any other force of nature capable of powering it. The input means (1) transmits the motion to a lever (3), which constitutes the main force transmission element.

[0027] The lever (3) will be associated with a fulcrum that can be fixed or movable. If the fulcrum is movable, it can be implemented as a rocker arm (4) that allows the lever's (3) displacement to be balanced and its transmission force to be regulated. When the fulcrum is fixed, the connection to the output shaft (7) is made solely through the pushers (5).

[0028] In a particular embodiment, the support point can be moved linearly along a guide (10) independent of the output shaft, as shown in Figure 7.

[0029] In the practical embodiments shown in figures 1 to 3, the input means (1) will be connected to a crankshaft (2) connected in turn to a lever (3).

[0030] In a fourth practical embodiment, shown in Figure 4, the input means (1) transmits its motion through at least one tubular connecting body (2a), which have the function of joining the input means (1) with at least one lever (3), ensuring an efficient mechanical transmission without energy loss.

[0031] The lever (3) is linked to at least one pusher (5), which extends and adapts the lever's movement to optimize power transmission. These pushers (5) are configured to actuate one or more bearings (6) located on the output shaft (7). In a preferred configuration, the device incorporates three bearings (6a, 6b, 6c). Of these, bearing (6b) serves as the fulcrum for the lever (3), while bearings (6a) and (6c) are driven by the pushers (5). This arrangement ensures a uniform distribution of force and allows for stable and continuous power transmission.

[0032] The bearings (6) located on the output shaft (7) can be configured as standard bearings or as freewheel bearings. Freewheel bearings ensure unidirectional motion transmission, preventing backlash and jamming that could compromise system stability. The versatility of using either standard or freewheel bearings allows the device to be adapted to different technological applications.

[0033] The output shaft (7) can be configured as a standard shaft or as an eccentric shaft, depending on the application requirements. The eccentric arrangement of the output shaft (7) allows for adjustment of the transmission geometry and provides greater flexibility in its integration with other mechanical systems.

[0034] The lever (3) may be provided with extensions (3a) beyond the fulcrum, allowing for optimized use of the input power and improved transmission efficiency. These additional extensions (3a) provide an extended lever arm, facilitating greater multiplication of the force transmitted to the output shaft (7).

[0035] In optional embodiments, the device may incorporate an input motor (8a) connected to the input means (1) to provide greater speed and stability to the transmitted motion. It may also include an auxiliary motor (8b) coupled to the output shaft (7), which acts as a regulator for possible load fluctuations or spikes generated by the input motor (8a). In an advanced embodiment, both motors (8a, 8b) are integrated simultaneously to optimize both the input and output of the system.

[0036] The device is scalable by incorporating multiple levers (3) connected to the same output shaft (7), each associated with its respective pushers (5) and bearings (6). This allows the number of output revolutions to be increased without increasing the input effort, thus ensuring consistent and efficient performance in applications of varying sizes.

[0037] Thanks to this configuration, the lever and bearing motion transmission device provides continuous, stable, and fluctua-free power transmission, eliminating the need for gears, chains, belts, or drive shafts. Its simplified design reduces friction, minimizes component wear, lowers maintenance costs, and ensures a long system lifespan. Furthermore, its versatility allows for integration into sectors such as mobility, power generation, and industry, where ensuring smooth, efficient, and reliable movement is essential.

Claims

CLAIMS 1. Motion transmission device comprising an input means (1) connected to at least one lever (3), said lever (3) being associated with a fulcrum and connected to at least one pusher (5), characterized by transmitting motion to at least one bearing (6) arranged on an output shaft (7), said output shaft (7) being a normal or eccentric shaft, and the bearings (6) being configured as normal or freewheel bearings so as to allow continuous and stable transmission of motion.

2. Motion transmission device according to claim 1 wherein the fulcrum associated with the lever (3) is fixed. 3.- Motion transmission device according to claim 1 wherein the fulcrum associated with the lever (3) is movable. 4.- Motion transmission device according to claim 1 wherein the fulcrum associated with the lever (3) is moved linearly by a guide (10) independent of the output shaft.

5. Motion transmission device according to any of claims 1 to 4 wherein the movable fulcrum of the lever (3) comprises a rocker arm (4) configured to balance the movement of the lever (3).

6. Motion transmission device according to any of claims 1 to 5 comprising at least three bearings (6a, 6b, 6c), one of them (6b) being configured as a fulcrum point of the lever (3) and the other two (6a, 6c) being driven by at least one pusher (5).

7. Motion transmission device according to any of claims 1 to 6 wherein the lever (3) comprises an extension (3a) arranged beyond the fulcrum point to optimize the use of the input power.

8. Motion transmission device according to any of claims 1 to 7 comprising an input motor (8a) coupled to the input means (1) to provide greater speed and stability in the motion transmitted to the lever (3).

9. Motion transmission device according to any of claims 1 to 8 comprising an auxiliary motor (8b) connected to the output shaft (7) configured to regulate the peaks generated by the input motor (8a).

10. Motion transmission device according to claim 8 or 9, wherein it simultaneously comprises an input motor (8a) coupled to the input means (1) and an auxiliary motor (8b) coupled to the output shaft (7).

11. Motion transmission device according to any of claims 1 to 10 wherein the output shaft (7) is arranged eccentrically in order to adjust the transmission geometry to different applications.

12. Motion transmission device according to any of claims 1 to 11 comprising a plurality of levers (3) associated with the same output shaft (7), each with its respective pushers (5) and bearings (6).

13. Motion transmission device according to any of claims 1 to 12 wherein the input means (1) comprises a motion source selected from a wind generator, a hydraulic generator, an electric motor, a mechanical motor, direct user action or direct action of hydraulic, wind, wave or tidal power. 14.- Motion transmission device according to any of claims 1 to 13 wherein the input means (1) is connected to a crankshaft (2) coupled to the lever (3).

15. Motion transmission device according to any of claims 1 to 14 wherein the input means (1) is connected to at least one tubular connecting body (2a) configured to connect the input means (1) to the lever (3).

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