EP4321718A1

EP4321718A1 - Automatic gate controller

Info

Publication number: EP4321718A1
Application number: EP21935456.0A
Authority: EP
Inventors: Alessandro Golfarelli; Luca Palmieri
Original assignee: Industrias Rossi Eletromecanica Ltda
Current assignee: Industrias Rossi Eletromecanica Ltda
Priority date: 2021-04-05
Filing date: 2021-04-05
Publication date: 2024-02-14
Also published as: WO2022213161A1

Abstract

Consisting in the reduction between primary shaft (1) and secondary shaft (2) by means of an endless pair, whereby the primary shaft is always motor, further incorporating flywheel (3) coupling, which can comprise orifices, magnetic components or optical components, and transducer (4), which can be inductive, magnetic, or optical.

Description

FIELD OF APPLICATION

The present utility model specification is related to gate automators using a flywheel with transducer to attenuate the stop jolts, and carry out the measurement of the rotation movement, providing an improvement in the equipment performance.

SUMMARY OF THE MODEL

Gate automators use electric motors for the linear displacement thereof, transforming rotation power into translation power, by means of the transmission by a set formed by a rack-and-pinion assembly, additionally using reductions comprised of primary shaft (drive shaft) and secondary shaft, for reduction of the angular velocity and increase of the outlet torque, to achieve ideal operating conditions; furthermore, to prevent the inactivated opening irreversible reductions are used; that is, the primary shaft has, always, a motor characteristic, making translation power transformation into rotation power impossible; however, when the gate is stopped, when the torque provided by the primary shaft is reduced, due to the inertia of the gate, the secondary shaft can assume greater angular velocity than the corresponding angular velocity of the primary shaft, resulting in mechanical braking, a consequence of the irreversibility, which has a highly cumulative character, that is, as the secondary shaft brakes the primary shaft, the intensity of the braking increases resulting in jolts, which, in turn, cause intense wear on the gate guides, the rack, the reduction, and the bearings, which becomes a restrictive factor in projects.
There is proposed the coupling of the flywheel, by interference, linchpins, or pins, which store energy in an inertial manner, reducing the braking effect, attenuating the jolts, and increasing the acceptance of variation between the angular velocity of the secondary shaft and corresponding angular velocity of the primary shaft, which variation is due to the distinct charges imposed on the automator.
At the same time, to carry out the trajectory control, it is proposed that the measurement of the rotation movement be made by differential, inductive, magnetic, or optical transducers, fixed to the body of the automator, for reading, by symmetrical orifices, magnetic components, or optical components, of the flywheel or the primary and/or secondary shafts, whereby the measurement of the rotation movement further allows the tracking of the velocity of the trajectory, independent of the charges imposed on the automator.

STATE OF THE ART

One of the solutions used currently in the gate automator sector, relative to stop jolts, is the reversible transmission incorporating braking device, electromechanical, or mechanical, aiming at preventing the opening of the gate when inactivated.
Another solution is to operate at low speed, with the purpose of generating low intensity jolts, in disagreement with the specifications desired by the client.
For the control of the trajectory in gate automators, magnetic transducers (Hall effect sensor) and magnets are used, for measuring the rotation through the main or secondary shaft.

BACKGROUND OF THE MODEL

The performance of the trajectory control in gate automators benefits from the addition of the flywheel to the primary shaft.
By means of the physical characteristics of the flywheel, the energy stored in an inertial manner reduces the braking effect, increases the acceptance of the variation between the angular velocity of the secondary shaft and corresponding angular velocity of the primary shaft, and absorbs undesired vibrations.
The robustness of the system increases regarding the occurrence of jolts, which are attenuated, even if there are load variations.
The execution of the measurement of the rotation by means of the flywheel is easily implemented, reduces the use of components apart from being reliable and precise.

BRIEF DESCRIPTION OF THE DRAWINGS

For a better understanding of the gate automator proposed herein, reference is made to the attached drawings, so that it may be reproduced by the appropriate technique, allowing full characterization of the functionality thereof, whereby said drawings are merely illustrative, and may present variations, within the same inventive concept, and wherein:

Figure 1 illustrates the installation of the gate automator;
Figure 2 illustrates a detailed view of the gate automator of figure 1;
Figure 3 illustrates an upper view of the mechanism proposed herein;
Figure 4 illustrates the components of the mechanism proposed herein.

PREFERRED DESCRIPTION OF THE MODEL

As shown in the attached figures, the gate automator proposed herein is comprised by a primary shaft (1), secondary shaft (2), flywheel (3) and transducer (4) .
The arrangement of the mechanism consists in the reduction between the primary shaft (1) and the secondary shaft (2), by means of an endless pair, whereby said reduction is irreversible, that is, the primary shaft (1) always has motor characteristic.
The flywheel (3), which may comprise orifices, magnetic components, or optical components, is coupled to the motor rotary shaft (1) and allows measuring the rotation movement by the transducer (4) .
The transducer (4) can be differential inductive, presenting a sensing coil and reference coil, to determine the relative inductance of the system.
The transducer (4) can alternatively be magnetic, using, for example, magnetic field detection sensors.
The transducer (4) can further be optical, using, for example, light detection sensors.

Claims

GATE AUTOMATOR, consisting in the reduction between primary shaft (1) and secondary shaft (2), by means of an endless pair, characterized by the primary shaft (1) being always motor, further incorporating coupling of a flywheel (3) and transducer (4).
GATE AUTOMATOR, according to claim 1, characterized by the flywheel (3) being able to comprise orifices, magnetic components, or optical components.
GATE AUTOMATOR, according to claim 1, characterized by the transducer (4) being able to be inductive, magnetic, or optical.