JPH077921A - Magnetic gearing - Google Patents

Abstract

PURPOSE:To obtain a large revolving torque resulting in the fixed number of revolution by spirally arranging the S pole of a permanent magnet on a non-magnetic body rotating cylinder, disposing the N pole of the permanent magnet on the external surface of a semicircular non-magnetic substance plate and combining driving gears using both poles as magnetic teeth under the state of striding and sitting. CONSTITUTION:Permanent magnets 2 are arranged continuously in rows along circumferences on the external surfaces of mounting frames 1 having a shape that the plate of a non-magnetic body is bent in a semicircular form, thus manufacturing driving gears 11. A permanent magnet 4 is disposed spirally and continuously on a non-magnetic body rotating cylinder 3, in which both sides of a shaft are supported by bearings, thus constituting a driven gear 12. The driving gears 11 are combined on the external upper section of the horizontally installed rotatable driven gear 12 in a striding and sitting manner at very short intervals, and held under the non-contact state, and the driving gears 11 are formed in horizontally movable structure. Accordingly, the number of revolution is kept constant with the increase of the diameter of the driven-gear revolution body 3 even at the time of constant linear moving length, thus obtaining a large revolving torque.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a power transmission device for converting linear motion of a driving gear into rotational motion by a driven gear.

[0002]

2. Description of the Related Art Conventionally, "rack and gear" and "worm and worm gear" are used to convert linear motion into rotary motion.
However, the power transmission method is based on the contact between the driving gear and the driven gear, and the moving dimension ratio of the contact portion is mainly 1: 1.

[00O3]

In the present invention, the drive gear and the driven gear are not in contact with each other. As for the moving dimension ratio between the two, if the linear moving length of the driving gear is constant, the rotational speed and the circumferential moving length can be changed by changing the pitch of the spiral arrangement of the permanent magnets of the driven gear. That is, the smaller the pitch of the magnetic teeth of the driven gear, the higher the rotational speed and the longer the circumferential movement length. On the contrary, the larger the pitch, the smaller the rotational speed and the circumferential movement length. Even if the linear movement length is constant, the larger the diameter of the driven gear rotating body is, the larger the rotation torque can be obtained at the constant rotation speed.

[0004]

Means for Solving the Problems A semi-circular shape and a driven gear having magnetic teeth by continuously arranging a permanent magnet with an S pole as an outer side in a spiral shape continuously on the outer surface of a non-magnetic rotating cylinder supported by a shaft. With the N pole on the outer surface of the non-magnetic flat plate, the drive gears with magnetic teeth arranged continuously in a row with the N poles on the outside are combined in a straddle state, with a slight gap so that both gears do not contact. The upper portion of the spiral permanent magnet of the driven gear is called as a mountain while being held by the drive gear, and the drive gear is installed in accordance with a valley portion called a valley between the mountains.

[0005]

The operation of the present invention is as follows.

Number of revolutions. When the driving gear is held horizontally so as to be able to move over the cylindrical rotating body of the driven gear and is moved horizontally, a rotational force is generated in the driven gear. In that case, when the driving gear is horizontally moved by the pitch dimension of the driven gear magnetic teeth, the moving dimension of the driven gear becomes the circumferential length of one rotation of the rotating body. The larger the diameter of the rotating body, the larger the circumference and the moving distance. That is, the rotational speed is such that the driven gear rotating body makes one rotation by moving the drive gear by the pitch length.

Rotational torque. The rotation torque at that time is proportional to the strength of the total magnetic force of the magnetic teeth attached to the driven gear and the magnetic teeth of the driving gear, and is inversely proportional to the mutual distance. The rotational torque is increased by increasing the number of sets of drive gears installed in the entire apparatus with the clone force of one set of magnetic teeth as a basic unit force. That is, the rotational torque of the driven gear is a torque that is proportional to the product of the basic unit force of one set of gears and the number of drive gears.

[0008]

The present invention will be described in more detail with reference to the following examples.

Example 1 Horizontal drive gear drive system (FIG. 4) A rotary belt (8) is installed on two wheels (7). When a large number of driving gears (11) are attached to the rotating belt (8) and the wheels (7) are rotated, the driving gears (11) continuously rotate the driven gears (12) to rotate the driven gears (12). be able to. If the water flow receiving plate (13) is attached to the drive gear (11) and thrown into the water flow (20) to obtain the source power from the water flow to rotate the wheels, the driven gear (12) continuously rotates. When a larger water flow force is obtained, the generator (14) is connected and attached to the shaft so that electric energy can be taken out as the output of the generator (14).

Embodiment 2 Drive gear rotation moving system (FIG. 5) A drive gear (11) is attached to the tip of each spoke (10) of a large-diameter wheel (9) to rotate the large gear (9). The driven gear (12) can be rotated by continuously crossing the driven gear (12) by (11). By attaching the water flow receiving plate (13) to the tip of the drive gear (11) and throwing it into the water flow (20), the water flow (20)
If the wheels can be rotated by obtaining the source power from the driven gear (12), the driven gear (12) continuously rotates. When a larger water flow force can be obtained, the generator (14) can be connected and attached to the shaft so that electric energy can be taken out as an output of the generator (14).

[0011]

Since the present invention is constructed as described above, it has the following effects.

Rotational speed n = v / p [0012-1 equation] p, pitch of driven gear magnetic teeth cm v, velocity of water flow m / sec n, rotational speed of driven gear r. p. m As an example, p = 5 cm v = 2 m / sec = 60 × 2 × 100 cm / min n = v / p = 12000 cm / min / 5 cm = 2400 rpm

Rotational torque Driving force of driving gear f = (w / g) .Q.v "00"
13-1] v, water flow velocity m / sec A, water flow receiving plate area m ² f, water flow force = driving force ton w, water weight ton / m ² g, gravity acceleration m / sec ² Q, flow rate (V · A) m ³ / sec Rotational force of driven gear circumference F = κ · f [00
13-2] F, driven gear circumferential rotation force ton κ, magnetic gear transmission coefficient driven gear rotation torque T = r · F [00
13-3 Formula] r, radius of driven gear rotating cylinder m T, driven gear generated torque kg · m v = 2 m / sec A = 0.5 m × 1.0 m = 0.5 m ² w = 1 ton / m ^{3 as an example} g = 9.8 m / sec ² Q = (Av) = 0.5 m ² × 2 m / sec = 1 m ³ / sec Driving force of driving gear f = (w / g) · Qv = (1 ton / m ³ ÷ 9.8 m / sec ² ) × 2 m ⁴ / sec ² = (1 ton ÷ 9.8) × 2 = 0.204 ton = 204 kg Driving gear circumferential torque F = κ · f κ = 0.3 = 0. 3 × 204 kg = 61.2 kg Driven gear rotation torque T = r · F r = 0.3 m = 0.3 m × 61.2 kg = 18.36 kg · m

[Brief description of drawings]

FIG. 1 is a front view and a side view of a drive gear of a magnetic gear device.

FIG. 2 is a front view and a side view of a magnetic gear device driven gear.

[Fig. 3] Basic structure of magnetic gear device

FIG. 4 is a front view and a sectional view taken along the line AA ′ of the horizontal movement system of the magnetic gear device.

FIG. 5 is a front view and a cross-sectional view taken along the line BB ′ of the magnetic gear device rotational movement system

[Explanation of symbols]

 1. Non-magnetic material mounting frame 11. Drive gear 2. Drive permanent magnet 12. Driven gear 3. Non-magnetic rotating cylinder 13. Water catch plate 4. Driven permanent magnet 14. Generator 5. Bearing 6. 7. Wheels 8. Rotating belt 9. Large wheels 10. Spokes 20. Water current

Claims (3)

[Claims] 1. A drive gear (FIG. 1) in which permanent magnets (2) are arranged continuously in a line along the circumference on the outer surface of a mounting frame (1) formed by bending a non-magnetic flat plate into a semicircle. To be. 2. A driven gear (FIG. 2) in which a permanent magnet (4) is continuously arranged in a spiral shape outside a non-magnetic rotating cylinder (3) having both ends of a shaft supported by bearings. 3. A drive gear (1) with a minute gap at the outer upper part of a horizontally driven rotatable gear (12).
A power transmission device characterized in that it has a structure in which 1) is combined in a straddle shape and held in a non-contact state so that the drive gear (11) can move horizontally (FIG. 3).