ES1256734U - Booster tanks for photovoltaic solar tracker with perimeter guide (Machine-translation by Google Translate, not legally binding) - Google Patents

Abstract

Propulsion system for solar tracker applied to a frame (1) that supports photovoltaic modules (2) that is articulated by horizontal bolts (12) as a hinge to an elongated base (15) with wheels (6) and with a central bolt (3) rotatable perpendicular to the support surface and that the frame (1) has oblique uprights (8) at its rear that converge in a connecting cylinder (11) at the opposite end of which a transmission shaft is inserted (19) attached to a grooved roller (10) that moves by rotating on itself on a guide with perimeter notches (9) of variable height and in the shape of a horseshoe open to the south and substantially concentric with the central bolt (3) characterized because the outer end of the grooved roller (10) is attached to a screw shaft (18) of a ratchet (2) which has fixed to its external shaft (26) a straight or substantially angled spar (7) located in a substantially plane perpendicular to the axis of screwed (18) so that said beam (7) has a first reservoir (4) suspended at one end which, when filled with liquid, forces the beam (7) to tilt and partially rotate the external shaft (26) of the ratchet (2) that since it is in the screw-in position, the screw-in axis (18), the grooved roller (10) and the transmission shaft (19) will also rotate partially and in the same direction, and because at the other end of the beam (7) a second tank (5) is hung to which the liquid from the first tank (4) is transferred by means of a pump (13) and a first carrier tube (16) connected to it and with the weight of the liquid the stringer (7) rotates back to its initial position with the lowering of the second tank (5) and rotating the external shaft (26) of the ratchet (2) but without turning the tightening shaft (18) and because a second pump (14) pumps the liquid from the second tank (5) to the first tank (4) in its raised position through its carrier tube (17) . (Machine-translation by Google Translate, not legally binding)

Description

DESCRIPTION

Booster tanks for photovoltaic solar tracker with perimeter guide

Technical field

The invention refers to an impulsion system based on tanks of variable liquid capacity so that they can be adapted for a solar tracker with perimeter guide with utility model number U202030706, published on June 16, 2020, by the same inventor.

State of the art

In the said utility model, the rotation of the photovoltaic panels fixed on a frame based on an electric motor is conceived. This propulsion system requires a certain power from the engine with a large final reduction in revolutions per minute to make the grooved roller that drives the frame travel the perimeter guide very slowly. The perimeter guide has a very small development in relation to the large amount of time in which it must be done. The only two ways to achieve this are either super low speed or short, spaced-apart engine activations.

The present invention presents an alternative to the propulsion system described by means of a system of impeller tanks that are filled and emptied of liquid at the same time as they act as a counterweight connected to a ratchet.

Description of the invention

The propulsion system for solar tracker applied to a frame (1) that supports photovoltaic modules (2) that is articulated by horizontal bolts (12) as a hinge to an elongated base (15) with wheels (6) and with a bolt central (3) rotatable perpendicular to the support surface and that the frame (1) has oblique uprights (8) at its rear that converge in a connection cylinder (11) at the opposite end of which is inserted a transmission shaft ( 19) attached to a grooved roller (10) that moves rotating on itself on a guide with perimeter notches (9) of variable height and in the shape of a horseshoe open towards the south and substantially concentric with the central bolt (3) is characterized because the outer end of the grooved roller (10) is attached to a screw shaft (18) of a ratchet (2) which has fixed to its external shaft (26) a straight or substantially angled spar (7) located in a substantially plane perpendicular to the e screwed (18) so that said beam (7) has a first tank (4) suspended at one end which, when filled with liquid, forces the beam (7) to tilt and partially rotate the external axis (26) of the ratchet (2) which, because it is in the screwing position, will also partially rotate and in the same direction the screwing shaft (18) the grooved roller (10) and the transmission shaft (19) and because at the other end From the beam (7) there is hung a second tank (5) to which the liquid from the first tank (4) is transferred by means of a pump (13) and a first carrier tube (16) connected to it and with the weight of the liquid the The side member (7) rotates back to its initial position with the descent of the second tank (5) and turning the external shaft (26) of the ratchet (2) but without turning the screw shaft (18) and because a second pump (14) pumps the liquid from the second tank (5) to the first tank (4) in its raised position through its carrier tube (17).

Once the grooved roller (10) finishes the path of the perimeter guide, reaching any of its stops (24 and 27), a limit switch (25) activates a servo motor (20) that reverses the position of the selector (23) from the ratchet (2) thus reversing the screwing direction.

There is a control panel that activates the first pump (13) for the time necessary to empty the first tank (4) and insert a waiting time until the second pump (14) is then activated for the time necessary to empty the second tank (5) and insert another waiting time until the first pump (13) is activated again so that the grooved roller (10) runs along the perimeter guide (9) between its two stops, from 24 to 27, in a space approximately 12 hours during the day and at night from top 27 to 24 in another 12 hours.

The two pumps (13 and 14) can be integrated into a single tank as a single reversible pump (21) capable of both pumping and sucking according to the polarity of its motor and the two carrying tubes (16 and 17) remain thus also integrated in a single carrier-suction tube (22) that has one end connected to the reversible pump (21) located in a first tank (4) and its opposite end fixed at the bottom of a second tank (5).

Description of the drawings

Other advantages and characteristics of the invention can be seen from the following description, in which, without any limitation, some preferred modes of carrying out the invention are reported with reference to the accompanying drawings.

Fig. 1 is a perspective view of the solar tracker with perimeter guide at noon and turning in the afternoon to position its frame (1) to the western sun.

Already connected to the propulsion system based on impeller tanks, the graph shows the moment in which a first tank (4) fills with liquid in its initial position, drawn in a broken line, until it is filled with liquid in its lowered position. With its descent, the shaft (26) of the ratchet (2) has moved a fourth turn and since the selector (23) of the ratchet is in the screwing position, there is also a quarter turn of the screwing shaft (18), from grooved roller (10) and the transmission shaft (19) since the last three are rigidly connected to each other.

The grooved roller (10) advances a quarter of a turn through the perimeter guide (9) towards the stop (27) and therefore, the frame (1) has also had a small movement with respect to its central bolt (3).

Next, the pump (13) of the first tank (4) sends the liquid through its tube (16) to a second tank (5) which, as it fills, starts its descent, also turning the shaft a quarter turn. (26) of the ratchet (2) but without turning of the screwdriver shaft (18). Therefore the grooved roller (10) will not have any movement and the frame (1) will stay still. However, the first tank (4) has again recovered its elevated position. Upon filling, the described sequence will restart.

When the grooved roller (10) reaches the stop (27) on the east side of the perimeter guide (9) with this system, the limit switch (25) gives the signal to the servomotor (20) to turn its lever and reverse the position of the selector (23) of the ratchet (2).

With the grooved roller still in contact with the stop (27), and when the second tank (5) is filled with liquid, there will be a quarter turn of all the shafts (26, 18 and 19) this time in the opposite direction and the Grooved roller will start its slow and interrupted advance, towards the stop (24) on the west side.

Note in the drawing how the perimeter guide (9) also has small grooves so that, especially in sloping areas, the grooved roller (10) runs without slipping. Fig. 2 is a sectional view of the tanks in the maximum lowering position of one of them. As can be seen in the diagram, the geometry of the beam (7) and the inclination of the tanks (4 and 5) with respect to its guideline must be such that at the moment of equilibrium once the lower tank is full, its center of gravity never exceed the vertical with respect to the axis of the ratchet (2) to guarantee that the tanks (4 and 5) will never make a complete turn around the axis of the ratchet (2).

An intermediate position of the deposits is plotted on a dashed line.

Fig. 3 is a sectional view of the tanks (4 and 5) operating with a single reversible pump (21) and a single carrier-suction tube (21) that goes from the outlet of the reversible pump (21) of a tank to the bottom of the other tank. In the graph, the level of the liquid at this specific position has been represented in dots.

An intermediate position of the deposits is plotted on a dashed line.

Once the nature of the invention is sufficiently described, as well as the way of putting it into practice, it is stated that everything does not change, alter or modify its fundamental principle, it may be subject to variations in detail, being the essential thing and for which a Model of Utility, for ten years, which is summarized in the following claims.

Claims (4)

1. Propulsion system for solar tracker applied to a frame (1) that supports photovoltaic modules (2) that is articulated by horizontal bolts (12) as a hinge to an elongated base (15) with wheels (6) and with a central bolt (3) rotates perpendicular to the support surface and that the frame (1) has oblique uprights (8) at its rear that come together in a connecting cylinder (11) at whose opposite end a transmission shaft is inserted (19) attached to a grooved roller (10) that moves by rotating on itself on a guide with perimeter notches (9) of variable height and in the shape of a horseshoe open towards the south and substantially concentric with the central bolt (3) characterized because the outer end of the grooved roller (10) is attached to a screw shaft (18) of a ratchet (2) which has fixed to its external shaft (26) a straight or substantially angled spar (7) located in a substantially plane perpendicular to the axis of screwed (18) so that said beam (7) has a first reservoir (4) suspended at one end which, when filled with liquid, forces the beam (7) to tilt and partially rotate the external shaft (26) of the ratchet ( 2) that because it is in the screw-in position, the screw-in axis (18), the grooved roller (10) and the transmission shaft (19) will also rotate partially and in the same direction and because at the other end of the beam (7) a second tank (5) is hung to which the liquid from the first tank (4) is transferred by means of a pump (13) and a first carrier tube (16) connected to it and with the weight of the liquid the stringer ( 7) rotates back to its initial position with the descent of the second tank (5) and making the external shaft (26) of the ratchet (2) rotate but without turning the tightening shaft (18) and because a second pump (14 ) pumps the liquid from the second tank (5) to the first tank (4) in its raised position through its carrier tube (17) . 2. Propulsion system for solar tracker according to claim 1, characterized in that once the grooved roller (10) ends the path of the perimeter guide, reaching any of its stops (24 and 27), a limit switch (25) activates a servo motor (20) that reverses the position of the selector (23) of the ratchet (2) thus reversing the screwing direction. 3. Propulsion system for solar tracker according to claims 1 and 2 characterized by having a control panel that activates the first pump (13) for the time necessary to empty the first tank (4) and insert a waiting time until it is activated then the second pump (14) for the time necessary to empty the second tank (5) and insert another waiting time until the first pump (13) is activated again so that the grooved roller (10) runs along the perimeter guide ( 9) between its two stops, from 24 to 27, in a space of approximately 12 hours during the day and during the night from stop 27 to 24 in another 12 hours. 4. Propulsion system for a solar tracker according to claims 1, 2 and 3 characterized in that the two pumps (13 and 14) are integrated into a single tank as a single reversible pump (21) capable of both pumping and sucking according to the polarity of your motor and why the two carrier tubes (16 and 17) are also integrated into a single carrier-suction tube (22) that has one end connected to the reversible pump (21) located in a first tank (4) and its opposite end fixed to the bottom of a second tank (5).