CN103345260A - Connecting rod type double-shaft solar tracking mechanism - Google Patents

Abstract

The invention relates to a connecting rod type double-shaft solar tracking mechanism. The connecting rod type double-shaft solar tracking mechanism comprises a round supporting pipe, a solar cell panel and a horizontal rotary panel, wherein the round supporting pipe is fixed on a cross-shaped base which is composed of cast iron square pipes, trundles are installed at the bottom of the cross-shaped base and can facilitate movement of the whole mechanism, the top end of the round supporting pipe is connected with the horizontal rotary panel through a rotary mechanism, the solar cell panel is installed on the horizontal rotary panel through a pitching mechanism, and thus rotation and changes of the elevation of the solar cell panel are achieved. The connecting rod type double-shaft solar tracking mechanism is compact in structure and low in cost.

Description

Link type two-axis solar tracking mechanism

technical field

The present invention relates to a solar tracking technology, specifically a link-type dual-axis solar tracking mechanism.

Background technique

With the development of human society, energy issues have become the focus of discussion in various countries. The energy structure based on clean and renewable energy will be inevitable for future development. As a new type of energy, solar energy has unlimited reserves, ubiquity, clean utilization, Advantages of using economy and so on. Undoubtedly, it will be a hot spot for future development, but solar energy also has shortcomings such as low density, intermittent, and constantly changing spatial distribution, which makes the current series of solar energy equipment not efficient in utilizing solar energy.

According to research, in the solar power generation system, under the same conditions, the use of automatic tracking power generation equipment can increase the power generation by 30% compared with fixed power generation equipment. At present, most of the solar panel arrays are basically fixed and cannot track the sunlight, so they cannot use the sunlight to the maximum efficiency. Even if the photovoltaic equipment with the technology of tracking sunlight is adopted, there are still many mechanisms that can be optimized. And improvements, for example, directly using a linear electric actuator to push the solar panel requires a higher push-out stroke of the linear electric actuator used. Using the slewing drive to realize the horizontal rotation of the tracking equipment makes the weight of the entire system in the vertical direction fall on the slewing drive. Therefore, a more powerful motor must be used, which greatly increases the cost and has a short life.

Contents of the invention

The purpose of the present invention is to overcome the above disadvantages and provide a link-type dual-axis solar tracking mechanism, which has a simple structure and low cost, and can track sunlight with maximum efficiency.

To achieve the above object, design of the present invention is:

The connecting rod type dual-axis solar tracking mechanism of the present invention is different from the traditional dual-axis solar tracking mechanism in realizing the pitching motion and rotating motion of the solar panel. In the present invention, the linear electric push rod is horizontally arranged on the rotating panel, and the telescopic end of the linear electric push rod is hinged with a connecting rod, and the other end of the connecting rod is hinged with other two connecting rods. The push out and retraction of the linear electric actuator lead to the action of three connecting rods, thereby realizing the pitching motion of the solar panel. The advantages of this are: firstly, the push-out stroke of the linear electric actuator is greatly shortened, and the linear electric actuator only needs to be pushed out or retracted for a small distance to realize a relatively large pitching motion of the battery panel through the linkage mechanism. Secondly, because the linear electric actuator is placed horizontally on the rotating panel, the stability of the system is increased, and the problem of possible interference between the linear electric actuator and other parts is reduced when the system is rotating.

The horizontal rotation of the mechanism is realized in the following way: the weight on the rotating panel of the system is entirely borne by the thrust bearing, the upper shaft ring of the thrust bearing is fixed in the rotating panel, the lower shaft ring is fixed in the bearing support plate, and the bearing support plate It is fixed on two supporting angle irons, and the supporting angle irons are installed on the lower supporting plate, and the DC motor responsible for the horizontal rotation of the mechanism passes through

The NMRV worm gear reducer transmits its power to the vertical transmission shaft. The upper end of the transmission shaft is connected with the rotating panel by bolts, and the lower end passes through the lower support plate with a hole in the middle, and a nut is installed at the lower end of the transmission shaft to prevent The entire device moves and topples in the vertical direction.

According to above-mentioned inventive concept, the present invention adopts following technical scheme:

A link-type dual-axis solar tracking mechanism, including a supporting circular tube, a solar panel and a horizontal rotating panel, characterized in that: the supporting circular tube is fixed on a cross base made of cast iron square tubes, and under the cross base, respectively Equipped with casters, the whole mechanism is easy to move; the top of the support tube is connected to the horizontal panel through a rotating mechanism, and the solar panel is installed on the horizontal rotating panel through a pitching mechanism, so as to realize the rotation and change of the solar panel elevation angle.

The structure of the pitch mechanism is: a linear electric push rod is fixed on the horizontal rotating panel, one end of a connecting rod A is hinged with the solar panel, the other end is connected with a connecting rod B connecting rod and a connecting rod C One end is hinged at one point (A), the other end of the connecting rod B is hinged on an angle iron fixed on the horizontal rotating panel, and the other end of the connecting rod C is hinged with the linear electric actuator; when the linear electric actuator stretches When the telescopic end of the linear electric actuator is retracted, it will drive the action of connecting rod C, connecting rod A and connecting rod B, so that the elevation angle of the solar panel will become larger. Conversely, when the telescopic end of the linear electric actuator is retracted, the elevation angle of the solar panel will get smaller.

The structure of the rotating mechanism is: a DC motor is decelerated by a worm gear box, and the power is transmitted to a vertical transmission shaft. The hole in the middle of the lower support plate fixed on the top of the support tube protrudes, and the lower end of the vertical transmission shaft is threaded and equipped with nuts, the purpose is to prevent the entire device from moving in the vertical direction, and the upper end of a thrust bearing The bearing ring is fixed in the horizontal rotating panel, and the lower bearing ring is fixed in a bearing support plate, and the bearing support plate is fixed on two support angle irons, and the support angle iron is fixed on the lower support plate. The weight of the whole mechanism, all through The thrust bearing is finally transmitted to the four casters, and the vertical transmission shaft is not subject to axial force, so the DC motor can easily drive the rotation of the entire turntable.

Compared with the prior art, the present invention has the following obvious outstanding substantive features and significant technological progress:

The weight in the vertical direction of the present invention is all passed through the thrust bearing and finally transmitted to the four casters. The vertical transmission shaft is not subject to axial force, which ensures the life of the reduction box; the DC motor of the present invention drives the rotating mechanism, and the linear electric push rod Drive the pitch mechanism to make the solar panel rotate and change the elevation angle to track the sunlight. The invention has compact structure and low cost.

Description of drawings

Fig. 1 is the structural representation of the present invention.

Figure 2 is a front view of Figure 1.

Figure 3 is a partial view of Figure 1.

Detailed ways

Preferred embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings.

Embodiment one:

Referring to Figures 1 to 3, this connecting rod type biaxial solar tracking mechanism includes a supporting circular tube (3), a solar panel (9) and a horizontal rotating panel (7), and is characterized in that: the supporting circular tube (3 ) is fixed on the cross base (2) made of cast iron square tube, and casters (1) are installed under the cross base (2), making the whole mechanism easy to move; the top of the supporting round tube (3) is connected by a rotating mechanism The horizontal panel (7) and the solar battery panel (9) are installed on the horizontal rotating panel (7) through a pitch mechanism, so as to realize the rotation and change of the elevation angle of the solar battery panel (9).

Embodiment two:

This embodiment is basically the same as Embodiment 1, and its special features are:

The structure of the pitching mechanism is: a linear electric push rod (8) is fixed on the horizontal rotating panel (7), one end of a connecting rod armor (10) is hinged to the solar panel (9), and the other end is connected to a One end of connecting rod B (11) and one connecting rod C (13) are hinged at one point (A), and the other end of connecting rod B (11) is hinged at an angle iron (12) fixed on a horizontal rotating panel The other end of the connecting rod C (13) is hinged with the linear electric push rod (8); when the telescopic end of the linear electric push rod (8) stretches out, it will drive the connecting rod C (13), connecting rod A (10) and connecting rod B (11) act to make the elevation angle of the solar panel (9) larger, on the contrary, when the telescopic end of the linear electric push rod (8) retracts, it will make the solar panel (9) The elevation angle becomes smaller.

The structure of the rotating mechanism is: a DC motor (17) is decelerated by a worm gear box (4), and the power is transmitted to a vertical transmission shaft (15), and the upper end of the vertical transmission shaft (15) is passed through a bolt Connected with the rotating panel (7), the lower end of the vertical transmission shaft (15) protrudes from a hole in the middle of the lower support plate (16) fixed on the top of the support tube (3), and the lower end of the vertical transmission shaft (15) It is threaded and equipped with nuts (18), the purpose of which is to prevent the entire device from moving in the vertical direction. The upper bearing ring of a thrust bearing (14) is fixed in the horizontal rotation panel (7), while the lower bearing ring is fixed In a bearing support plate (6), the bearing support plate (6) is fixed on two support angle irons (5), and the support angle iron (5) is fixed on the lower support plate (16), the weight of the whole mechanism, all The thrust bearing (14) is finally transmitted to the four casters (1), and the vertical transmission shaft (15) is free from axial force, so the DC motor (17) can easily drive the rotation of the entire turntable.

Embodiment three:

As shown in Figures 1 to 3, a link-type solar dual-axis tracking device. Including support round tube (3), solar panel (9), horizontal rotating panel (7), support round tube (3) is fixed on the cross base (2) made of cast iron square tube, installed under the cast iron square tube respectively There are casters (1) to make the whole mechanism easy to move. The linear electric push rod (8) is horizontally fixed on the rotating panel (7). When the telescopic end of the linear electric push rod (8) stretches out, it will drive the connecting rod (13), connecting rod (10), connecting rod (11 ) action makes the elevation angle of the solar panel (9) larger, on the contrary, when the telescopic end of the linear electric push rod (8) retracts, the elevation angle of the solar panel (9) becomes smaller, thereby realizing the solar panel ( 9) The pitch motion is used for tracking in the direction of altitude angle. The DC motor (17) is decelerated by the NMRV worm gearbox (4), and transmits the power to the vertical transmission shaft (15). The upper end of the vertical transmission shaft (15) is connected with the rotating panel (7) through bolts, and the vertical transmission shaft ( The lower end of 15) protrudes from the hole in the middle of the lower support plate (16), and the lower end of the vertical transmission shaft (15) is threaded, and a nut (18) is installed to prevent the whole device from moving in the vertical direction. move. The upper bearing ring of the thrust bearing (14) is fixed in the rotating panel (7), the lower bearing ring is fixed in the bearing support plate (6), and the bearing support plate (6) is fixed on two support angle irons (5), supporting The angle iron (5) is fixed on the lower support plate (16), and the weight of the entire system in the vertical direction is finally transmitted to the four casters (1) through the thrust bearing (14), and the rotation of the DC motor (17) drives The rotation of the entire rotating panel (7) enables the system to track sunlight in the azimuth direction. the

Claims (3)

1. A link-type dual-axis solar tracking mechanism, including a support tube (3), a solar panel (9) and a horizontal rotating panel (7), characterized in that: the support tube (3) is fixed on the On the cross base (2) made of cast iron square tubes, casters (1) are respectively installed under the cross base (2), making the whole mechanism easy to move; the top of the supporting round tube (3) is connected to the horizontal panel through a rotating mechanism (7), the solar battery panel (9) is installed on the horizontal rotating panel (7) through a pitch mechanism, so as to realize the rotation and change of the elevation angle of the solar battery panel (9). 2. The link-type dual-axis solar tracking mechanism according to claim 1, characterized in that: the structure of the pitch mechanism is: a linear electric push rod (8) is fixed on the horizontal rotating panel (7), a One end of the connecting rod A (10) is hinged to the solar panel (9), and the other end is hinged to one end of a connecting rod B (11) and one end of a connecting rod C (13) at a point (A). The other end of B (11) is hinged on an angle iron (12) fixed on the horizontal rotating panel, and the other end of connecting rod C (13) is hinged with the linear electric push rod (8); when the linear electric push rod When the telescopic end of (8) stretches out, it will drive connecting rod C (13), connecting rod A (10) and connecting rod B (11) to move, so that the elevation angle of the solar panel (9) becomes larger, otherwise, when the straight line When the telescopic end of the electric push rod (8) is retracted, the elevation angle of the solar panel (9) becomes smaller. 3. The link-type dual-axis solar tracking mechanism according to claim 2, characterized in that: the structure of the rotating mechanism is: a DC motor (17) is decelerated by a worm gear reducer (4), and the power Passed to a vertical transmission shaft (15), the upper end of the vertical transmission shaft (15) is connected with the rotating panel (7) by bolts, and the lower end of the vertical transmission shaft (15) is connected from a piece fixed on the top of the supporting circular tube (3). The hole in the middle of the lower support plate (16) protrudes, and the lower end of the vertical transmission shaft (15) is threaded, and a nut (18) is installed, the purpose is to prevent the entire device from moving in the vertical direction, a thrust bearing The upper bearing ring of (14) is fixed in the horizontal rotating panel (7), while the lower bearing ring is fixed in a bearing support plate (6), which is fixed on two support angle irons (5) , the support angle iron (5) is fixed on the lower support plate (16), the weight of the whole mechanism is finally transmitted to the four casters (1) through the thrust bearing (14), and the vertical transmission shaft (15) is not subject to axial force, Therefore, the DC motor (17) can easily drive the rotation of the entire turntable.

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