CN202735847U - Single-axis driving double-axis solar battery panel tracker - Google Patents

Abstract

The utility model relates to the field of solar cell components, in particular to a single-axis driven dual-axis solar cell panel tracker, characterized in that the tracker at least includes a solar cell panel support, a pitch angle rotation mechanism, an azimuth angle rotation mechanism, Motor drive system, the solar panel support is respectively hinged with the pitch rotation mechanism and the azimuth rotation mechanism, the pitch rotation structure is linked with the azimuth rotation mechanism, and the azimuth rotation mechanism is connected with the azimuth rotation mechanism The motor drive system is connected, and the azimuth rotation mechanism drives the pitch rotation mechanism to rotate the solar panel support. The utility model has the advantages that the sun azimuth tracking is completed once a day through the azimuth rotation mechanism, and at the same time, the pitch rotation mechanism is driven to rotate 1/365 circles to complete a pitch tracking cycle every year, saving manufacturing costs and maintenance costs .

Description

A dual-axis solar panel tracker driven by a single axis

technical field

The utility model relates to the field of solar battery components, in particular to a single-axis driven double-axis solar panel tracker.

Background technique

The use case of trackers for two-dimensional control of a single solar panel has been well documented. Most of the current trackers are controlled by a single unit. The disadvantage of this type of solution is the high cost of production and operation.

In the case of a dual-axis solar tracker, the adjustment and tracking of the sun azimuth and sun altitude are usually controlled by two independent drive systems to adjust the pitch and azimuth of the solar panel. This operation is usually performed by tracking the photodetector to detect the incident angle of sunlight, and then adjusting the inclination angle of the solar panel surface by controlling the movement of the drive motor of the system. Or according to the solar azimuth and solar altitude operating data of the location of the photovoltaic power station, the software of the computer is used to control the motor drive system to realize the clock-like azimuth regulation of the solar panel. Since the sun azimuth and sun altitude angle tracking adopts an independent drive system, the installation cost and the maintenance cost of the electrical control and mechanical transmission parts will be increased.

Contents of the invention

The purpose of this utility model is to provide a single-axis drive dual-axis solar panel tracker according to the shortcomings of the above-mentioned prior art. The angle at which the radar changes its elevation angle every day at the same time as the azimuth angle changes. the

The realization of the utility model is accomplished by the following technical solutions:

A dual-axis solar panel tracker driven by a single axis, including a solar panel support, is characterized in that: the tracker also includes a pitch angle rotation mechanism, an azimuth angle rotation mechanism, and a motor drive system, and the azimuth angle rotation mechanism Connect and control the solar panel support, and control the change of its azimuth angle; the pitch angle rotation mechanism is connected to control the solar panel support, and control the change of its pitch angle; the motor drive system is connected and drives the The action of the azimuth rotation mechanism; the pitch rotation structure is linked with the azimuth rotation mechanism, that is, the motor drive system is connected to drive the azimuth rotation mechanism to change the azimuth angle of the solar panel support, and at the same time Linkage drives the pitch angle rotation mechanism to realize the angle change of the solar panel support.

The azimuth rotation mechanism is composed of an azimuth rotation shaft, an incomplete gear, an overrunning clutch, a drive gear, a worm, a worm wheel, and a worm gear pin. The incomplete gear is set on the periphery of the azimuth rotation shaft. The shaft end is connected with the overrunning clutch, the outer ring of the overrunning clutch is equipped with the drive gear, the incomplete gear meshes with the drive gear, the worm meshes to drive the worm wheel, and the side of the worm wheel is equipped with the Worm gear pin, wherein the number of teeth of the driving gear is an integer multiple of the number of teeth of the incomplete gear, the azimuth rotation is driven by the motor drive system, and as the azimuth rotation shaft rotates, the rotation passes through the incomplete Gears, drive gears, worms, worm gears, and worm gear pins are transmitted to the pitch angle rotation mechanism.

The ratio of the number of teeth of the driving gear to the number of teeth of the incomplete gear is 5:1, and the azimuth rotation shaft completes the tracking of the sun azimuth once a day, and at the same time drives the worm gear to rotate 1/365 circle, so that the solar energy The battery board bracket completes a cycle of pitch angle tracking every year.

The pitch angle rotation mechanism is composed of a pitch angle rotation pin shaft, a pitch angle rotation pin shaft seat, and a driving device, and the solar panel support is hinged with the pitch angle rotation pin shaft seat through the pitch angle rotation pin shaft, so One end of the drive device is fixedly connected to the solar panel support, and the other end is fixedly connected to the pin shaft of the worm gear.

The driving device is composed of a driving sleeve, a connecting rod, a push rod sliding sleeve, and a push rod. The driving sleeve is set on the azimuth rotation shaft, and one end of the connecting rod is fixedly connected with the driving sleeve. The other end is fixedly connected with the pin shaft of the worm gear, and the driving sliding sleeve is connected with the sliding sleeve of the push rod in clearance fit, one end of the push rod is connected with the sliding sleeve of the pushing rod, and the other end is connected with the solar panel bracket fixedly connected, the connecting rod pushes the driving sliding sleeve to slide up and down on the azimuth rotation shaft with the rotation of the worm gear pin, and the driving sliding sleeve drives the push rod sliding sleeve to slide up and down, so The push rod sliding sleeve pushes the solar panel support to change the pitch angle through the fixed push rod.

The motor drive system is connected to drive the azimuth rotation shaft to track the sun azimuth once a day, and the azimuth rotation shaft drives the worm gear to rotate 1/365 of a circle.

The incomplete gear is provided with a number of teeth, and the driving gear is provided with a number of concave arc surfaces, the circle diameter of the several concave arc surfaces is equal to the diameter of the indexing ring of the incomplete gear, and between the concave arc surfaces There are teeth, and the incomplete gear meshes with the driving gear through the teeth.

The utility model has the advantages that the sun azimuth angle is tracked once a day through the azimuth angle rotation mechanism, and the pitch angle rotation mechanism is driven to rotate 1/365 circle at the same time, so as to complete the pitch angle tracking cycle once a year. Save manufacturing cost and maintenance cost.

Description of drawings

Fig. 1 is the structural diagram when the utility model is used;

Fig. 2 is the structural diagram of the utility model tracker;

Fig. 3 is a sectional view of the drive sliding sleeve in the utility model;

Fig. 4 is a schematic diagram of meshing between the incomplete gear and the driving gear in the utility model.

Detailed ways

The features of the utility model and other relevant features are further described in detail below in conjunction with the accompanying drawings through the embodiments, so as to facilitate the understanding of those skilled in the art:

As shown in Figure 1-3, the marks 1-28 in the figure are: solar panel support 1, support pin seat 2, push rod hinge seat 3, pitch angle rotation pin shaft 4, pitch angle rotation pin seat 5, Azimuth rotation shaft 6, push rod sliding sleeve 7, cover plate 8, drive sliding sleeve 9, incomplete gear 10, main bracket 11, motor drive system 12, push rod 13, push rod pin 14, sliding sleeve pin 15 , sliding sleeve pin shaft seat 16, sliding sleeve pin shaft 17, connecting rod 18, overrunning clutch 19, drive gear 20, worm screw 21, worm wheel 22, worm gear bracket 23, worm gear pin shaft 24, teeth 25, concave arc surface 26, The diameter of the indexing circle is 27, and the teeth are 28.

Embodiment: As shown in Figures 1 and 2, the solar panel support 1 is connected to the azimuth rotation shaft 6 through the support pin seat 2 fixed at the center, the pitch angle rotation pin shaft 4 and the pitch angle rotation pin seat 5 . The solar panel support 1 can swing with the pitch angle rotation pin 4 as the axis. The azimuth rotation shaft 6 is placed in the main support 11 and can rotate freely. The drive of the azimuth rotation shaft 6 is driven by a motor drive system 12 comprising a worm gear, controlled by computer software, and performs a forward and reverse rotation cycle once a day to realize clock-like azimuth tracking and regulation.

The incomplete gear 10 is set on the azimuth rotation shaft 6 . Worm screw 21 shaft ends are connected with an overrunning clutch 19, and a drive gear 20 is equipped with on the outer ring of overrunning clutch 19. The partial gear 10 meshes with the drive gear 20 . The drive gear 20 drives the worm 21 to rotate only when it rotates in the forward direction. The worm 21 drives a worm gear 22 , which is supported by a worm gear bracket 23 . Worm wheel pin 24 is equipped with on worm wheel 22 sides. One end of the connecting rod 18 is sleeved on the worm gear pin shaft 24 and can rotate freely. The other end of connecting rod 18 is connected on the driving sliding sleeve 9 through sliding sleeve pin shaft 17 and sliding sleeve pin shaft seat 16 . What needs to be clarified here is that when the azimuth rotation shaft 6 rotates positively every day, with the cooperation of the transmission mechanism, the connecting rod 18 drives the worm gear pin shaft 24 to move, and at other times, due to the incomplete gear 10 and overrunning With the clutch 19 set, the connecting rod 18 does not drive the worm gear pin shaft 24 to move, so as to further accurately control the change of the pitch angle of the solar panel support 1 .

As shown in Figure 4, in this embodiment, three teeth 25 are processed on the incomplete gear 10, the driving gear 20 is a locking arc gear, and five concave arc surfaces 26 are processed on the incomplete gear 10, and the concave arc surface 26 The circle diameter is equal to the index ring diameter 27 of the incomplete gear, and there are two teeth 28 between every two concave arc surfaces 26 .

The driving sliding sleeve 9 is sleeved on the azimuth rotation shaft 6 and can move freely along the vertical direction of the azimuth rotation shaft 6 under the push of the connecting rod 18 . There is a push rod sliding sleeve 7 above the driving sliding sleeve 9, which can slide vertically along the axial direction. As shown in Figure 3, the bottom of the push rod sliding sleeve 7 is designed with a shoulder, which is installed in the concave platform at the top of the driving sliding sleeve 9, and the upper end is equipped with a cover plate 8, and a certain assembly gap is maintained on each contact surface so that the push rod The rod sliding sleeve 7 can rotate freely at the driving sliding sleeve 9, and can slide up and down along the azimuth rotation shaft 6 under the driving of the driving sliding sleeve 9.

Push rod 13 is hinged by sliding sleeve pin 15 on the push rod sliding sleeve 7 . The other end of the push rod 13 is equipped with a push rod pin 14, and is hinged with the push rod hinge seat 3 fixed on the solar panel support 1. Under the pushing action of the push rod 13, the adjustment of the pitch angle of the solar panel support 1 is realized.

In the specific implementation of this embodiment: the number of teeth of the worm gear 22, the corresponding relationship between the number of teeth of the driving gear 20 and the number of teeth of the incomplete gear 10 is as follows:

Number of worm gear teeth N _{worm gear} = 365/n, n is an integer. In this implementation, n is set to 5, and the designed number of teeth of the worm wheel 22 is N=73 teeth. And there is following relationship between the number of _teeth N of driving gear 20 and the number of teeth N of incomplete gear 10: N _{incomplete gear} =N _{driving gear} /n. In this implementation, the diameter of the driving gear 20 is designed according to the number of teeth N _{driving gear} =30. Incomplete gear 10 teeth number N=3.

The azimuth rotating shaft 6 completes the tracking of the azimuth of the sun once a day, and simultaneously drives the worm wheel 22 to rotate 1/365 circle. The worm gear 22 makes the solar panel support 1 rotate according to the pitch angle every day, that is, the cycle of pitch angle tracking is automatically completed once a year.

Claims (7)

1. the shaft-driven double-shaft solar cell panel of list tracker, comprise solar-cell panel support, it is characterized in that: described tracker also comprises angle of pitch rotating mechanism, position angle rotating mechanism, motor driven systems, described position angle rotating mechanism connects the described solar-cell panel support of control, and controls the variation of its orientation angles; Described angle of pitch rotating mechanism connects the described solar-cell panel support of control, and controls the variation of its luffing angle; Described motor driven systems connects and drives the action of described position angle rotating mechanism; Described angle of pitch rotational structure and the interlock of described position angle rotating mechanism, be that described motor driven systems connects the variation that drives the described solar-cell panel support orientation angles of described position angle rotating mechanism action realization, simultaneously interlock drives described angle of pitch rotating mechanism and realizes that described solar-cell panel support angle changes.

2. the shaft-driven double-shaft solar cell panel of a kind of list according to claim 1 tracker, it is characterized in that: described deflection rotating mechanism is by the position angle rotation axis, partial gear, overrunning clutch, driven wheel, worm screw, worm gear, the worm gear bearing pin forms, it is peripheral that described partial gear is set in described position angle rotation axis, the axle head of described worm screw connects described overrunning clutch, described overrunning clutch outer shroud fills described driven wheel, described partial gear and the engagement of described driven wheel, described worm mesh drives described worm gear, and described worm gear bearing pin is equipped with in described worm gear side, and wherein the driven wheel number of teeth is the integral multiple of the described partial gear number of teeth.

3. the shaft-driven double-shaft solar cell panel of a kind of list according to claim 2 tracker, it is characterized in that: the described driven wheel number of teeth is 5:1 with the ratio of the described partial gear number of teeth.

4. the shaft-driven double-shaft solar cell panel of a kind of list according to claim 2 tracker, it is characterized in that: described angle of pitch rotating mechanism is comprised of angle of pitch rotating pin, angle of pitch rotational pin axle bed, drive unit, described solar-cell panel support is hinged by described angle of pitch rotating pin and described angle of pitch rotational pin axle bed, described drive unit one end is fixedly connected with described solar-cell panel support, and the other end is fixedly connected with described worm gear bearing pin.

5. the shaft-driven double-shaft solar cell panel of a kind of list according to claim 4 tracker, it is characterized in that: described drive unit is comprised of driving sliding sleeve, connecting rod, push rod sliding sleeve, push rod, described driving sliding sleeve is sleeved on the rotation axis of described position angle, described connecting rod one end is fixedly connected with described driving sliding sleeve, the other end is fixedly connected with described worm gear bearing pin, described driving sliding sleeve and described pusher slide cover gap are connected, described push rod one end is connected with described push rod sliding sleeve, and the other end is fixedly connected with described solar-cell panel support.

6. the shaft-driven double-shaft solar cell panel of a kind of list according to claim 1 tracker, it is characterized in that: described motor driven systems connects the tracking that the described position angle of driving rotation axis is finished a solar azimuth every day, and described position angle rotation axis drives described worm gear rotation 1/365 circle.

7. the shaft-driven double-shaft solar cell panel of a kind of list according to claim 2 tracker, it is characterized in that: described partial gear is provided with some teeth, some cancave cambered surfaces are set on the described driven wheel, described some cancave cambered surface circular diameters equal the graduated circle diameter of described partial gear, and between the described cancave cambered surface teeth are arranged, described partial gear and described driven wheel mesh by described teeth.

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