WO2011053104A2 - Dual-action electromagnetic gears - Google Patents

Abstract

A feature of this gear is that it has electromagnets on the outside instead of fixed teeth, which makes it possible to select a gear moment on the same shaft and avoid the entire synchronism system for gear changing, thereby reducing cost and space, and there is a series of pistons that are normally withdrawn and, if appropriate, can extend to act as teeth in the event that greater force transmission is required.

Description

 DOUBLE ACTION ELECTROMAGNETIC GEARS

BACKGROUND OF THE INVENTION At present, all gears operate on the basis of a ring or a circle which has a series of cuts in the outer perimeter allowing it to have grooves along the entire circle in a uniform manner, these grooves are normally larger that the section that remains, and these parts form rounded peaks, called teeth, and this alternation of cuts and peaks allows them to overlap when two gears are placed contiguously in the same plane with different axes allowing the teeth of a gear introduce the perforations of the adjacent disc and transmit a torque when turning the main gear.

These perforations and rounded peaks remain the same dimension even when the diameter of the circles can vary and this diameter ratio determines the speed of rotation between the two circles and the rotational force transmitted from one axis to another.

Another type of gear is in metal conical forms which in turn have grooves and extensions so that when two of these pieces are placed at an angle that can be ninety degrees or so, these grooves overlap with the teeth, transmitting the torsion force in different planes.

FIELD OF THE INVENTION

This gear system can be used in commercial types of normal power transmission mechanisms, as well as within commercial machines and mechanisms such as speed boxes.

DESCRIPTION OF THE INVENTION

The characteristic details of this novel system of electromagnetic gears are clearly shown in the following description and in the accompanying drawings, as well as an illustration of those and following the same reference signs to indicate the parts and figures shown. Brief description of the figures:

Figure 1 is an isometric view of the double acting electromagnetic gear with the pistons retracted.

 Figure 2 is an isometric view of the double acting electromagnetic gear with the pistons extended.

 Figure 3 is a lateral longitudinal section showing the systems of power electromagnets and the electromagnets that activate the pistons.

 Figure 4 is a detail of the gear showing the two electromagnets systems, where these pistons are retracted and shows the spring that retracts the pistons.

 Figure 5 is a detail of the gear showing the two electromagnets systems, where these pistons are extended.

 Figure 6 is a detail of the gear with the spaces where the piston and power electromagnets penetrate.

 Figure 7 is a longitudinal section of the gear with the power electromagnet.

Figure 8 is a longitudinal section of the gear with the electromagnet that moves the piston.

 Figure 9 is a longitudinal section of the gear with permanent magnet.

 Figure 10 shows the two gears showing the extended pistons in the drive gear, and the insertion space in the secondary gear.

 Figure 11 are two gears showing the pistons retracted in the drive gear and the insertion space in the secondary gear and the latter with permanent magnet and is smaller in diameter than the drive gear.

 Figure 12 are two conical gears showing the electromagnets in the drive gear and the permanent magnet in the secondary gear.

With reference to figure 1, the double acting electromagnetic gear (A) is shown which is composed of a ring (a) and in the center a circular hole for the shaft (b) supported by several spokes (c) and in the outer lateral periphery of the ring (a) has at least four power electromagnets, (e), and equal number of perforations (d) both concentric and alternating, the electromagnets are alternately polarized, that is one has at the outer end one polarity and the next electromagnet has the opposite polarity at the outer end, these electromagnets are responsible for generating the magnetic fields necessary to attract the gear secondary (B) and through its equivalent electromagnets generate the attraction necessary to achieve circular motion.

In each perforation (d) it has a secondary electromagnet (h) Fig. 3 and inside it has a piston (f) detail figure 4, which is normally placed inside the ring thanks to a spring (g) the Power electromagnets (e) and pistons (h) are independent, all electromagnets of the first group (e) work together and all elements of the second group (h) work under the following condition.

The main gear (A) rotates and the secondary gear (B) Fig. 10, is stopped by the load and by being a few millimeters apart (for example 2 mm) but at the moment when the main electromagnets are electrified ( e) of the two gears (A) and (B), the magnetic fields of each are attracted and begins to transmit the torsional force, this allows zero wear and controlled force transmission.

In the event that greater tensile force is needed, the secondary electromagnet (h) of the main gear (A) is activated and the pistons (f) will be extended, these will penetrate the holes (j) in the secondary gear (B) and will serve as a lever for greater traction.

This electromagnetic gear can be made up of the following variants: The main gear (A) in addition to having the main electromagnet (e), can have a second electromagnet (h) that extends a piston (f) which are retracted thanks to the spring action (g)

The main gear (A) can have at least four main electromagnets (e) or be made up of a series of permanent magnets (i) with alternating polarizations.

The secondary gear (B) can have at least four main electromagnets (d) or at least four permanent magnets (i) and the same number of perforations (d) outside. The main gear (C) in addition to being a flat gear, can be conical, which has at least four main electromagnets (e), and can have at least four secondary electromagnets (h) that extend a series of pistons (f). which are retracted thanks to the action of the spring (g).

The secondary gear (D) in addition to being a flat gear, can be conical, which has at least four main electromagnets (e), or at least four permanent magnets (i) and can have a series of perforations (d), where the pistons are introduced (d)

Claims

CLAIMS Having sufficiently described my invention, I consider as a novelty and therefore claim as my exclusive property, what is contained in the following claims: 1. An electromagnetic gear characterized in that it is composed of a ring and in the center a circular hole for the shaft supported by several spokes and on the outer side periphery of the ring has at least four power electromagnets, and can have an equal number of perforations both concentric and alternating, the electromagnets are polarized alternately, that is to say one has a polarity at the outer end and the next electromagnet has the opposite polarity at the outer end, these electromagnets are responsible for generating the magnetic fields necessary to attract the Secondary gear and through its equivalent electromagnets and generate the attraction necessary to achieve circular motion; in the case that it has perforations, in each perforation there is a secondary electromagnet and inside it has a piston, which is normally placed inside the ring thanks to a spring, both systems of power electromagnets and of the pistons are independent, all electromagnets of the first group work together and all the elements of the second group work under the same condition; the main gear rotates and the secondary gear is stopped by the load and by being a few millimeters apart, but at the moment when the main electromagnets of the two primary and secondary gears are electrified, the magnetic fields of each are attracted and begins to transmit the torque, this allows zero wear and controlled force transmission. 2. An electromagnetic gear according to that of claim one, characterized in that for greater tensile force the secondary electromagnet of the main gear is activated and the pistons are to be extended, these will penetrate the secondary gear and will serve as lever for greater traction. 3. An electromagnetic gear according to claim one, characterized in that the main gear can have at least four main electromagnets or can be made up of a series of permanent magnets with alternating polarizations. The main gear in addition to being flat, according to claim one, characterized in that it can be tapered, which has at least four electromagnets and can have a second group of electromagnets, at least one for each main electromagnet, which extends a series of pistons, which are retracted by a spring The secondary gear in addition to being flat, according to claim one, characterized in that it can be tapered, which has at least four main electromagnets or at least four permanent magnets and can have a series of perforations where the pistons are introduced