An electrical rotary equipment with gravity arms

Abstract

On the base platform (1) there is an electric motor (2) connected using a horizontal central shaft (4) with a circular gravity flywheel (3) provided with retaining pins (10) along its perimeter. On the retaining pin (10) there is a rotary-mounted gravity arm (5) with the centre of gravity outside the retaining pin (10). In the upper dead end of the gravity flywheel (3) there is a tilt mechanism of gravity arms (5) to their working position. In the working position the gravity arms (5) are provided with latching elements, e.g. one-direction bearings by means of which the gravity arms (5) are attached on the retaining pins (10). The equipment has a tilt mechanism of gravity arms (5), consisting e.g. of a gearwheel (13) and a geared rack (14), which turns the gravity arm (5) to the working position.

Description

[0001] An Electrical rotary equipment with gravity arms

[0002] Tecnhnical Field

[0003] The invention relates to electrical rotary equipment suitable, for example, for teaching purposes and assembled from an electric motor and a circular gravity flywheel made of gravity arms.

[0004] Background of the Invention

[0005] Currently, teaching aids and other devices are known that demonstrate the possibilities of various rotary systems driven by a motor or another mechanical device. The power source can be human labour, the kinetic energy of water, or, for example, electrical power obtained from a distribution system or renewable source. Power from renewable sources, especially solar collectors, is often used to drive such demonstration devices and teaching aids. However, from a teclinical point of view, existing devices are different and their operation is therefore also different and often does not meet its educational purpose well.

[0006] Description of the Invention

[0007] The above disadvantages are eliminated by the electrical rotary equipment with gravity arms according to the present invention. Its essence lies in the fact that an electric motor is mounted on the base platform which has the ability to recuperate; i.e. when turning, it supplies electrical power back to the battery power source or to the network. The electric motor is connected by a horizontal central shaft with at least one circular gravity flywheel, along the circumference of which are located retaining pins. There are at least five retaining pins and they are distributed evenly around the circumference of the flywheel, parallel to the central shaft. The retaining pins are located as far as possible from the centre of the gravity flywheel. On each retaining pin, a gravity arm is rotary-mounted, the centre of gravity of which is located outside the retaining pin.

[0008] The electrical rotary equipment also includes a tilt mechanism for the gravity arms to move to their working position, which is located at the top dead centre of the gravity flywheel.

[0009] The working position of the gravity arm is the position where the centre of gravity of the gravity arm is as far as possible from the retaining pin on which the gravity arm is rotary-mounted. This means that the gravity arm is also as far as possible from the central shaft of the electric motor, i.e. as far as possible from the axis of rotation of the circular gravity flywheel. In order to lock gravity arms, each gravity flywheel is provided with locking elements located on the gravity flywheel or on each gravity arm. The locking elements keep the gravity arms in working position, i.e. in such a position that their centre of gravity is as far as possible from the central shaft of the gravity flywheel.

[0010] It is essential that the electric motor is an asynchronous motor with the possibility of generator function.

[0011] It is essential that the locking elements use one-way bearings. Each retaining pin is provided with a one-way bearing on which the gravity arm is mounted. The one-way bearing is therefore inserted between the retaining pin and the gravity arm.

[0012] It is essential that the tilting mechanism of each gravity arm consists of a gear and a geared rack. The gear is rotary-mounted on the retaining pin and it is inseparably connected to the gravity arm. The geared rack does not rotate as it is fixed to the base platform. The geared rack is in the shape of a circular arc with its centre identical to the axis of the central shaft. Its radius of curvature is equal to the radius of a circle whose centre is identical to the axis of the central shaft and whose radius is equal to the distance of the axis of the central shaft from the gear. The length of the toothed rack is equal to 0.04 to 0.2 of the circumference of the gearwheel pitch circle.

[0013] The essence of the invention is also that the tilt mechanism of the gravity arms is made by a link mechanism system. On the side, each gravity arm is provided with a crank ending in a stone. The crank is situated on the gravity arm on the side of the gravity arm. This means that it is not placed in the plane of the gravity arms.

[0014] In the upper dead centre of the electric rotary equipment, a link system is placed and is fixed to the supporting structure of the entire device which is connected to the base platform. During rotation, the link system interferes with the trajectories of the stones of each gravity' arm crank.

[0015] Description of the drawings

[0016] The invention is explained in more detail with the help of drawings 1 and 2, which show the electrical rotary equipment with gravity arms in a simplified illustration according to the present invention.

[0017] Fig. 1 shows the electrical rotary equipment with gravity arms in which both tilt mechanisms of the gravity arm are used.

[0018] Fig. 2 shows the electrical rotary equipment with gravity arms in which only one tilt mechanism of the gravity arm is used. Examples of the invention implementation

[0019] In the first exemplary embodiment, shown in Fig. 1 , it is decided to make the rotary equipment with gravity arms according to the present invention for educational purposes. Metal material is used to make the frame structure of the base platform 1 on which a circular gravity fly wheel 3 with a diameter of 100 cm is placed in a known manner, as well as an asynchronous electric motor 2 with a power of 300 W which is connected to the gravity fly wheel 3 by a central shaft 4. The electric motor 2 can function as a generator. Twelve retaining pins 10 axe evenly distributed around the circumference of the gravity flywheel 3. They are distributed at mutual angles of 30°, at equal distances from the central shaft 4. A one-way bearing is mounted on each retaining pin 10 and a gravity arm 5 is mounted on it. All twelve gravity arms 5 are identical. Each gravity arm 5 is formed by a drop-shaped flat element made of a steel plate 30 mm thick. Each gravity arm 5 weighs 10 kg. Each gravity arm 5 made in this way is provided with a through circular' hole at a point as far as possible from its centre of gravity. The hole corresponds in its diameter to the outer diameter of the one-way bearing, which is inserted into this hole and, together with the gravity arm 5, is mounted on the retaining pin 10 and fastened in a known manner. In this way, all twelve gravity arms 5 are identically rotary-mounted on twelve retaining pins 10. The electrical rotary equipment with gravity arms 5 is provided with two tilt mechanisms for each gravity arm 5.

[0020] The first tilt mechanism of the gravity arm 5 consists of a link mechanism containing a crank 9 and a stone 6. A 20 cm long crank 9 consisting of a metal rod is attached to each gravity arm 5 in a known manner. The crank is attached at one end to the front surface of the steel plate from which the gravity arm 5 is formed.

[0021] The other end of the metal rod is provided with a stone 6. The stone 6 is made by rounding and smoothing the end of the crank 9, i.e. the free end of the metal rod.

[0022] At the top dead centre of the electrical rotary equipment, there is a link mechanism 8 which is inseparably connected by welding to the base platform 1. The link mechanism 8 is positioned so that it interferes with the trajectory that, in the case of rotation by the gravity flywheel 3 of the electrical rotary equipment, is performed by the stones 6 placed on the cranks 9 of the gravity arms.

[0023] The second tilt mechanism, with which the electrical rotary' equipment with gravity anus 5 is provided, consists of a gearwheel 13 and a geared rack 14 shaped into the shape of a circular segment and made from a part of a gear ring.

[0024] The gearwheel 13 is rotary-mounted on the retaining pin 10 and is inseparably connected to the gravity arm 5. Each of the twelve gravity arms 5 is provided in this way and each of them is provided with the same gearwheel 13. The diameter of each gearwheel 13 is chosen so that when they are mounted on the retaining pins 10 the gears 13 are inscribed in an imaginary circle with a radius of 50 cm with the centre in the axis of the central shaft 4.

[0025] The gears 13 correspond in their gearing parameters to the geared rack 14. which is in the shape of a circular segment with a radius of 50 cm and which is inseparably connected to the base platform 1 by being attached to the frame structure of the electrical rotary equipment. The location of the geared rack is in the area of the top dead centre of the gravity flywheel 3 at a distance of 50 cm from the axis of the central shaft 4.

[0026] Thus, the selected location of the toothed rack 14 guarantees that the teeth of the gearwheels 13 will be in functional contact with the geared rack 14.

[0027] The length of the geared rack 14 is 22 cm, which is in the range of 0.04 to 0.2 of the length of the circumference of the pitch circle of the gearwheel 13.

[0028] The function of the electrical rotary equipment with gravity arms is as follows:

[0029] The gravity flywheel 3 rotates due to the rotation of the electric motor 2, to which it is connected by the central shaft 4.

[0030] The cranks 9 terminated with stones 6 are mounted on the gravity arms 5 of the gravity flywheel 3. When the gravity flywheel 3 rotates, the stone 5 hits the link mechanism 8, which causes the link 8 to rotate. Since the link mechanism 8 is inseparably connected to the installed gravity arm 5, the gravity arm 5 rotates.

[0031] Since the gravity arm 5 is inseparably connected to the gearwheel 13, the gearwheel 13 rotates at the same time. Subsequently, the gravity flywheel 3 rotates and the further rotation of the gravity arm 5 with the link 8 and the gearwheel 13 is taken over by the other tilt mechanism. The gearwheel 13 comes in contact with the geared rack 14 which rotates it. The length of rotation of the gearwheel 13. or the angle by which the gearwheel 13 rotates, depends on the length of the geared rack 14. Therefore, the length of the geared rack 14 is chosen so that after the gearwheel 13 leaves the functional range of the geared rack 14, the gravity' aim 5 is in the working position. This means that the centre of gravity of the gravity arm 5 is as far as possible from the retaining pin 10 on which the gravity arm 5 is rotary-mounted. Undesirable backward rotation of the gravity arm 5 from the working position is prevented by the one-way bearing that allows rotation in only one direction.

[0032] Since the crank 9 is attached to the front surface of the steel plate from which the gravity arm 5 is made, a problem-free rotational movement of the gravity arms 5 is enabled because no gravity arm 5 can encounter the crank of the next gravity arm 5 during its movement. The gravity arms 5 are thus rotated into the working position by the first and second tilt mechanisms and assist in the rotation of the gravity flywheel 3 and thus assist the operation of the electric motor 2.

[0033] Industrial Applicability

[0034] The invention can be used, for example, for educational purposes.

[0035] Electrical rotary equipment with gravity arms

[0036] List of reference numbers:

[0037] 1 -- base platform

[0038] 2 - electric motor

[0039] 3 - gravity flywheel

[0040] 4 central shaft

[0041] 5 - gravity arm

[0042] 6 - stone

[0043] 7

[0044] 8 - link

[0045] 9 - crank

[0046] 10 - retaining pin

[0047] 11

[0048] 12

[0049] 13 - gearwheel

[0050] 14 - geared rack

Claims

AMENDED CLAIMS received by the International Bureau on 23 June 2025 (23.06.2025)Claims

1. Electrical rotary equipment with gravity arms, characterized in that an electric motor (2) and arms with the function of recovering electrical energy are mounted on a base platform (1), connected by a horizontal central shaft (4) with at least one circular gravity flywheel (3 ), along the circumference of which there are at least five retaining pins (10) located parallel to the central shaft (4) and evenly distributed, while on each retaining pin (10) there is a gravity arm (5) rotarymounted, the centre of gravity of which is located outside the retaining pin (10 ), while the electrical rotary equipment contains, in the space of the top dead centre of the gravity flywheel (3), a mechanism for tilting the gravity arms (5) into their working position, each gravity flywheel (3) being provided with locking elements for locking the gravity arms (5) in the working position and the locking elements are part of the gravity flywheel (3) or a gravity arm (5).

2. Electrical rotary equipment with gravity arms, according to claim 1 , characterized in that the electric motor (2) is an asynchronous motor with the possibility of generator function.

3. Electrical rotary equipment with gravity arms, according to claim 1 , characterized in that the locking elements are formed by one-way bearings, each retaining pin (10) being provided with a one-way bearing on which a gravity arm (5) is mounted.

4. Electric rotary equipment with gravity arms according to claim1 , characterized in that the tilt mechanism of each gravity arm (5) consists of a gearwheel (13) and a geared rack (14), the gearwheel (13) being rotary-mounted on the retaining pin (10) and inseparably connected to the gravity arm (5), and the geared rack (14), which is inseparably connected to the base platform (1), is in the shape of a circular arc with a radius of a circle whose centre is identical to the axis of the central shaft (4) and whose radius is equal to the distance of the axis of the central shaft (4) from the gearwheel (13), while the length of the geared rack (14) is equal to 0.04 to 0.2 of the length of the circumference of the pitch circle of the gearwheel (13).

5. Electrical rotary equipment with gravity arms, according to claim 1 , characterized in that each gravity arm (5) is at one end provided with a crank (9) ending with a stone (6), and in the upper dead centre of the electric rotary device is situated a link mechanism (8) which is inseparably connected to the base platform (1), with the link mechanism (8) interfering with the trajectories of the stones (6) of the cranks (9) of the gravity arms (5).

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