CN202533807U - Biaxial sunlight tracking device - Google Patents

Abstract

The utility model relates to a dual-axis tracking sunlight device, which includes a solar cell component fixing frame, a supporting frame, a cross-shaped rotating shaft, an elevation angle tracking component and an azimuth tracking component. The solar cell module fixing frame is connected with the supporting frame through the rotating shaft of the cross structure, the altitude angle tracking component includes the first transmission part and the driving device matched with it; the azimuth tracking component includes the second transmission part and the driving device matched with it or Manual positioning device; the utility model has the characteristics of simple and reasonable structure, low energy consumption in operation, easy control, high operation accuracy, and convenient installation and daily maintenance.

Description

Two-axis tracking sun light device

technical field

The utility model relates to the technical field of solar energy utilization equipment, in particular to a tracking device that can ensure that a solar cell assembly accurately corresponds to sunlight within an effective time period, and can greatly improve the power generation efficiency of the solar cell assembly.

Background technique

Due to the increasing depletion of fossil energy, and the environmental pollution and greenhouse effect caused by its production and use are becoming more and more serious, the development and utilization of new energy has attracted more and more attention from all countries. Among them, solar energy, as a new type of energy that is efficient, clean, widely distributed, and almost infinitely usable, attracts people to gradually increase investment in its research and development. However, in terms of solar energy utilization, especially in the field of photovoltaic power generation, the low utilization rate of solar energy and the high cost of power generation are still common problems. Therefore, on the one hand, it is necessary to find ways to reduce the cost of battery components and develop and utilize new battery component materials with higher photoelectric conversion efficiency; on the other hand, it is necessary to improve the power generation efficiency per unit area of existing photovoltaic cell components.

Most of the current photovoltaic power generation systems are fixed installation of solar cell components, so that it can only ensure that the sunlight is irradiated at the best angle at a certain time on a certain day of the year, so the utilization rate of solar energy is relatively low. If the solar cell module can always maintain the best angle with the sun or adopt the concentrating technology, the same area of the cell module can be used to obtain more electric energy; all these require a mature and reliable solar tracking technology. According to research, if the tracking technology is used for the crystalline silicon flat panel battery components currently used, the power generation of fixed installations can be increased by 40%-50% or more; while for the high-power concentrating technology, it depends entirely on the tracking of sunlight . However, most of the existing solar tracking technologies lead to high tracking costs due to complex structures and other reasons, even exceeding 30% of the total investment in photovoltaic power generation devices, and the tracking itself has power consumption and occupies more land than fixed installations. Maintenance and repairs require additional technicians, and the risk of device operation is greater than that of fixed installations. At the same time, in order to reduce tracking costs, manufacturers now make tracking devices larger and larger, which in turn increases wind resistance and installation A series of problems such as increased maintenance difficulty and higher requirements for roads and foundations have greatly reduced the attractiveness of the effects produced by tracking technology, hindering the commercial development of solar tracking technology.

Utility model content

The purpose of the utility model is to provide a device capable of biaxially tracking sunlight, which has the characteristics of reasonable structure, low cost, low power consumption, reliable operation and convenient daily maintenance.

The technical scheme adopted by the utility model to solve the technical problem is: the dual-axis tracking sunlight device includes a solar cell module fixing frame, a support frame, a cross-shaped rotating shaft composed of an elevation angle adjustment axis and an azimuth angle adjustment axis, An altitude tracking component and an azimuth tracking component; it is characterized in that the solar cell module fixing frame is hinged on the azimuth adjustment shaft of the cross-shaped rotating shaft; the support frame is hinged at the height of the cross-shaped rotating shaft Angle adjustment axis;

The altitude angle tracking component includes a first transmission part that can make the solar cell module fixing frame rotate by relying on the above-mentioned altitude angle adjustment shaft and a first drive device for adjusting the position of the first transmission part. The transmission part is connected to the azimuth adjustment shaft of the cross-shaped rotating shaft, and the first driving device is arranged on the support frame;

The azimuth tracking component includes a second transmission part that can make the solar cell module fixing frame rotate by relying on the azimuth adjustment shaft and a second drive device or manual positioning device for adjusting the position of the second transmission part, so The second transmission part is connected to the solar cell module fixing frame, the second driving device or the manual positioning device is arranged on a rigid support, and the rigid support is fixedly connected to the azimuth adjustment of the cross-shaped rotating shaft. On-axis or on the height angle adjustment axis;

The second driving device or the manual positioning device can only rotate synchronously with the rotation of the solar cell module fixing frame in the direction of the elevation angle.

The first transmission part is a rigid semi-circular body with a transmission structure on it, and the two ends of the rigid semi-circular body are fixedly connected to the azimuth adjustment shaft of the cross-shaped rotating shaft; A driving device drives the rigid semicircular body to rotate.

Further, the rigid semicircular body has a toothed transmission structure; the first driving device includes a motor and a worm gear reducer, and the toothed transmission structure is installed on the output shaft of the worm gear reducer meshing gears.

Further, the rigid semicircular arc body has a transmission structure in the shape of a chain groove; the first driving device includes a motor and a worm gear reducer, and the output shaft of the worm gear reducer is installed with a chain groove shape The sprocket that matches the transmission structure.

Further, the first transmission component is a rope-shaped body including a first transmission rope and a second transmission rope; the first drive device includes a motor and a worm gear reducer, and the output of the worm gear reducer A sheave that can be matched with the rope-like body is installed on the shaft; the sheave is cylindrical with a small diameter in the middle and large diameters at both ends, and two symmetrical first slats are arranged on the sheave cylindrical surface with respect to the middle cross-section plane of the sheave. A helical guide groove and a second helical guide groove; the first transmission rope and the second transmission rope are respectively arranged in the first helical guide groove and the second helical guide groove, and one end of the two ropes is fixed in the corresponding helical guide groove , the other ends of the two ropes are respectively connected to the azimuth adjustment shaft of the cross-shaped rotating shaft, and the relationship between the two is retractable.

The second transmission part and the second driving device are a set of telescopic push rods, the driving compartment of which is hinged on the rigid support, and the telescopic rods are hinged on the solar cell module fixing frame; the telescopic push rods can It is electric, oil pressure and air pressure linear actuator.

Further, the second transmission part is a rigid arc body with a groove-shaped or hole-shaped angular positioning structure, and the rigid arc body is fixedly connected to the solar cell module fixing frame; the manual The positioning device includes a positioning structure arranged on the rigid support and a positioning pin that can be inserted between the positioning structure and the positioning structure on the rigid arc body.

Further, the second transmission part is a rigid arc body provided with a tooth-like or chain groove-like transmission structure, and the rigid arc body is fixedly connected to the solar cell module fixing frame; The second driving device includes a motor and a worm gear reducer, and a gear or a sprocket that cooperates with the toothed or chain groove transmission structure on the rigid arc body is installed on the output shaft of the worm gear reducer.

Further, the second transmission component is a rope-shaped body including the third transmission rope and the fourth transmission rope; the second driving device includes a motor and a worm gear reducer, and the output shaft of the worm gear reducer A sheave that can be matched with the rope-like body is installed on the top; the sheave is cylindrical with a small diameter in the middle and large diameters at both ends, and two third helixes that are symmetrical about the middle section of the sheave are arranged on the cylinder surface of the sheave. guide groove and the fourth helical guide groove; the third transmission rope and the fourth transmission rope are respectively arranged in the third helical guide groove and the fourth helical guide groove, one end of the two ropes is fixed in the corresponding helical guide groove, and the two The other ends of the ropes are respectively connected to the solar cell module fixing frames, and the relationship between the two is retractable.

The beneficial effects of the utility model are:

1) The structure is reasonable and the mechanical properties are good; the tracking energy consumption of the device is greatly reduced.

2) The combination mode is flexible; it is easy to realize large-scale production.

3) Low cost; it is conducive to the miniaturization and low height of the tracking device, which reduces the wind resistance, facilitates installation and daily maintenance, has low requirements on the foundation, and does not require large machinery during construction.

4) The control program is simple; the purpose of precise tracking can be achieved by using the open-loop control system; the cost of the control system is reduced, and the probability of failure is reduced at the same time, which is conducive to the realization of large-scale central control.

5) The tracking angle range is large. Above 240°horizontal direction.

6) Wide range of applicable areas. It effectively solves the problem that the "T" dual-axis tracking device based on the ground plane coordinates widely used in the market cannot accurately and smoothly track the swing of the north and south sides of the direct sunlight point within the regression line when it is running in summer.

Description of drawings

Fig. 1 is the structural diagram of embodiment one;

Fig. 2 is one of the structural schematic diagrams of the cross-shaped rotating shaft;

Fig. 3 is the second structural schematic diagram of the cross-shaped rotating shaft;

Figure 4 is a schematic diagram of solar panel installation;

Fig. 5 is the structural diagram of embodiment two;

Fig. 6 is the side view of Fig. 1;

Fig. 7 is the structural diagram of embodiment four;

Fig. 8 is the structural diagram of embodiment three;

Fig. 9 is the structural diagram of the sheave in embodiment three;

Fig. 10 is the structural diagram of embodiment five;

Fig. 11 is the structural diagram of the sheave in embodiment five;

In the figure: 1 Solar cell module fixing frame, 11 Solar cell module, 2 Support frame, 21 Altitude angle rotation bushing, 3 Cross-shaped rotating shaft, 31 Altitude angle adjustment shaft, 32 Azimuth angle adjustment shaft, 41 Rigid semi-circular arc Body, 421 first transmission rope, 422 second transmission rope, 51 rigid bracket, 61 first gear, 62 second gear, 71 rigid arc body, 72 azimuth electric push rod, 731 third transmission rope, 732 fourth transmission Rope, 74 positioning hole, 81 first driving device, 82 second driving device, 821 manual positioning device, 819 first driving sheave, 829 second driving sheave, 911 first helical guide groove, 912 second helical guide groove , 921 the third spiral guide groove, 922 the fourth spiral guide groove.

Detailed ways

This dual-axis tracking sunlight device includes a solar cell module fixing frame 1, a support frame 2, a cross-shaped rotating shaft 3 composed of an elevation angle adjustment axis 31 and an azimuth angle adjustment axis 32, an elevation angle tracking component, and an azimuth angle tracking component. Component; the height angle tracking component is a set of program automatic control system, and the specific form can be gear transmission, belt transmission or rope transmission. The azimuth tracking component can be a system automatically controlled by a program, or a manually adjusted mechanism to form fully automatic or semi-automatic two-axis tracking. Below extract several representative embodiments and describe in detail:

As shown in Figure 1 and Figure 5, for the convenience of description, first define the direction parallel to the plane where the solar cell module fixing frame 1 is located and along the sun's daily trajectory as the Y direction, and define the direction parallel to the plane where the solar cell module fixing frame 1 is located and The direction along the solar annual trajectory is defined as the Z direction, and the direction perpendicular to the YZ plane and facing the back of the solar cell module fixing frame 1 is the X direction.

The solar cell module fixing frame 1 is a welded frame structure (or a combined frame structure of aluminum profiles) for fixing the solar cell module 11 .

The support frame 2 is a welded H-shaped steel structure, the bottom ends of its two columns are fixed to the foundation by fastening bolts, and the tops of the two columns are fixedly connected with screws or welded with the height angle rotation sleeve 21, the height angle rotation shaft The sleeve 21 is hingedly connected with the elevation angle adjustment shaft 31 . The solar cell module fixing frame 1 is hinged on the cross-shaped rotating shaft 3 through the azimuth adjustment shaft 32 .

Regarding the rotation axis, it has two forms:

First, as shown in Figure 2, the cross-shaped rotating shaft 3 includes an elevation angle adjustment shaft 31 and an azimuth angle adjustment shaft 32 arranged perpendicularly to each other, and a rigid support 51 is directly welded on the elevation angle adjustment shaft 31 to form an integral body for Install other parts. Optimally, the length and shape of the rigid support 51 can be designed into different shapes according to the needs. Here, it is not limited to a straight rod, and the spatial shape of the rigid support 51 can also be adjusted according to the needs of installation and movement, so as to ensure the orientation Angular tracking range and when the solar cell module fixing frame 1 rotates in the direction of the altitude angle, the whole set of azimuth tracking components will not be affected by the supporting frame 2 .

Second, as shown in Figure 3, the rigid support 51 is fixedly connected to the azimuth adjustment shaft 32 at a certain angle, which not only ensures that the solar cell module fixing frame 1 has a sufficient azimuth rotation angle, but also ensures that the solar cell module fixing frame 1 is in the When rotating in the elevation angle direction, the rigid support 51 and the whole set of azimuth tracking components will not be affected by the support frame 2 .

As shown in FIG. 4 , in order to increase the wind resistance of the tracking device, the solar cell module fixing frame 1 and the solar cell module 11 can be installed in parallel with a certain gap, or can be installed at a certain oblique angle to each other.

Embodiment one

Both the altitude angle and the azimuth angle in this embodiment have the function of automatic tracking. The rotating shaft adopts the structure shown in Fig. 2 .

As shown in FIG. 1 and FIG. 6 , the altitude angle tracking component includes: a first transmission part, which is preferably provided with a rigid semi-arc body of a transmission tooth structure, marked as a rigid semi-arc body 41 . The two ends of the rigid semicircle body 41 are fixedly connected on the azimuth adjustment shaft 32 of the cross-shaped rotating shaft 3, the rigid semicircle body 41 is coaxial with the elevation angle adjustment shaft 31, and the first driving device 81 is fixedly mounted on On the support frame 2, the driving device is preferably a synchronous motor and equipped with a worm gear reducer. Gears are installed on the output shaft of the worm gear reducer, here marked as the first gear 61, the first gear 61 meshes with the teeth on the rigid semicircle body 41, the first gear 61 controls the rigid semicircle body 41 Running, driving the solar cell module fixing frame 1 to rotate around the height angle adjustment shaft 31 of the cross-shaped rotating shaft 3, which can achieve the purpose of adjusting the height angle.

The azimuth tracking component includes a rigid arc body 71 in the shape of a circular arc provided with transmission teeth. One end of the rigid arc body 71 is fixed or welded to the solar cell module fixing frame 1 by bolts, and the other end is freely suspended. The rigid arc body 71 is coaxial with the azimuth adjustment shaft 32 and is used to control the rotation of the solar cell module fixing frame 1 around the azimuth adjustment shaft 32 of the cross-shaped rotating shaft 3 . The second driving device 82 is preferably a synchronous motor and is equipped with a worm gear reducer; it is fixedly installed on the free end of the rigid support 51, and a gear is installed on the output shaft of the worm gear reducer, which is marked as the second gear 62 here, the second The gear 62 meshes with the rigid arc body 71 (other meshing or occlusal structures are also possible), controls the movement of the rigid arc body 71, and then achieves the purpose of controlling the solar cell module fixing frame 1 to adjust the azimuth angle.

The coordinated movement of the first driving device 81 and the second driving device 82 can achieve the purpose of accurate tracking.

In order to ensure accurate tracking and a simple and reasonable control procedure, the sector formed by the rigid semicircular arc body 41 is perpendicular to the ground plane along the earth's latitude, and perpendicular to the sector where the rigid arc body 71 in the second transmission component is located.

The program control box for controlling the operation of the first driving device 81 and the second driving device 82 can be installed on the support frame 2, or a central control system can be used. The motor operation control program is set according to astronomical constants. By setting a reasonable program, the two drive devices work together to actively simulate the daily trajectory of the sun, so that the device has the function of two-axis precise tracking of sunlight.

Specifically: before sunrise, the dual-axis tracking sunlight device is in the initial state, corresponding to the effective tracking orientation; from the initial state after sunrise, the program controls the first driving device 81 to rotate the specified number of revolutions every specified time, and output The first gear 61 on the shaft drives the rigid semi-arc body 41 of the second transmission part to drive the battery assembly fixing frame 1 to rotate a specified degree every specified time in the direction of the elevation angle until the set hour and minute stop before sunset. When the first driving device 81 starts to track in the morning, the program controls the second driving device 82 to rotate a specified number of revolutions every specified time, and through the second gear 62 on its output shaft, the rigid arc body 71 of the second transmission part is driven to drive the battery. The component fixing frame 1 rotates the specified degree every specified time in the azimuth direction, starting from the easterly position of the solar azimuth angle in the morning, until the maximum value of the solar altitude angle at noon, and then the program controls the second driving device 82 to run in reverse , and stop until the set hour and minute before sunset; through the coordinated movement of two sets of transmission components, accurate tracking of sunlight is realized.

When the wind force reaches the set level, the program controls the solar cell module fixing frame 1 to be in a horizontal state, which is a wind-shielding state; when snow falls, the program controls the solar cell module fixing frame 1 to be in a vertical state, which is a snow-avoiding state.

The advantages of this mode of operation are accurate tracking and minimized refraction loss of light, especially suitable for concentrating solar power generation devices that require high tracking accuracy.

Moreover, compared with the existing tracking devices in the market, its program control is simpler: the purpose of precise tracking can be achieved by using the open-loop control system; it not only reduces the cost of the control system, but also reduces the probability of controller failure, which is more conducive to Realize large-scale central control of the entire power station.

At the same time, the solar panels installed in groups according to a certain inclination angle also play an effective role in reducing wind resistance.

The disadvantage is that both driving devices must work in time, the control program is more complicated, and the power consumption of the tracking device itself is also large.

Embodiment two

As shown in Figure 5, the second transmission part of the azimuth tracking member is a rigid arc body 71 with a positioning hole 74, one end of the rigid arc body 71 is fixedly connected or welded to the solar cell module fixing frame 1, and the other end dangling. The cross-shaped rotating shaft 3 includes an altitude adjustment shaft 31 and an azimuth adjustment shaft 32. As shown in Figure 2, the rigid bracket 51 is fixed at a certain angle and connected with screws or welded to the azimuth adjustment shaft 32, which ensures that the solar cell module fixing frame 1 There is a sufficient azimuth rotation angle, and it is ensured that when the solar cell module fixing frame 1 rotates in the direction of the elevation angle, the rigid support 51, the manual positioning device 821 and the rigid arc body 71 will not be affected by the support frame 2.

The difference from Example 1 is:

The rigid arc body 71 has a hole-shaped positioning structure, which is an array of positioning holes 74 distributed on the rigid arc body, so that it has the function of stepwise adjustment and fixation of the angle. A locating pin (circular pin) can be inserted between the fixing holes on the locating hole 74 and the rigid support 51, as shown in Figure 5, the rigid arc body 71 and the rigid support 51 can be locked together, the locating hole 74, The fixing hole and the positioning pin form a simple manual positioning device 821, thereby realizing the purpose of manually adjusting the azimuth angle and forming a manual adjusting device. Compared with the second driving device driven by the motor in the first embodiment, the control procedure can be simplified and the energy saving can be saved. drive costs.

The elevation angle tracking component is the same as that in Embodiment 1.

This method can achieve the purpose of single-axis automatic tracking of sunlight, but the adjustment of the azimuth angle needs to be done manually. Among them, the first transmission part rotates the number of teeth corresponding to the specified degree according to the specified time, and drives the solar cell module fixing frame 1 to track the height change of the sun every day until it stops running at the specified time before sunset in the afternoon, and finally returns to the initial state in the morning . The azimuth angle is manually adjusted every fixed number of days according to the change of the sun's altitude angle in a year, so that the second driving device 82 in the first embodiment can be simplified. Due to the gravity balance design of the device itself, coupled with the leverage of the rigid arc body 71, the work is simple and easy. The purpose of adjusting the azimuth is achieved by locking the manual positioning device installed on the rigid bracket 51.

The advantage is that it reduces the cost and the power consumption of tracking, and the driver only needs to control the regular rotation of the left and right angles, which is the simplest; the disadvantage is that it needs to manually adjust the azimuth angle, and there will be a certain tracking error (all annual average less than 5%), can not achieve the purpose of maximizing the use of solar energy.

Embodiment Three

As shown in FIG. 8 and FIG. 9 , the difference from the first embodiment is that the second transmission component is a transmission rope, including a third transmission rope 731 and a fourth transmission rope 732 .

The second driving device includes a motor and a worm gear reducer, and a second drive sheave 829 matched with the transmission rope is installed on the output shaft of the worm gear reducer. The sheave 829 has a small diameter in the middle and a large diameter at both ends. columnar, and the diameter gradually changes from the middle to the sides. There are two third helical guide grooves 921 and fourth helical guide grooves 922 symmetrical to the middle section of the sheave on the sheave cylindrical surface. The direction of rotation of the two helical guide grooves is opposite. Need to design. The third transmission rope 731 and the fourth transmission rope 732 are respectively arranged in the third helical guide groove 921 and the fourth helical guide groove 922, wherein one end of the third transmission rope 731 is fixed on the right side of the third helical guide groove 921, and the other end is fixed on the right side of the third helical guide groove 921. One end is connected to the solar cell module fixing frame 1; one end of the fourth transmission rope 732 is fixed on the right side of the fourth helical guide groove 922, and the other end is also connected to the solar cell module fixing frame 1; when the second driving sheave rotates, The third transmission rope 731 takes in the rope, and the fourth transmission rope 732 releases the rope, and the relationship between the two is retractable, and vice versa. By setting reasonable parameters of the spiral guide groove, the azimuth angle can be adjusted smoothly.

The elevation angle tracking component is the same as that in Embodiment 1.

Embodiment Four

As shown in Figure 7, the difference from Embodiment 1 is that the second transmission part and the second driving device are a set of telescopic push rods, which are denoted as azimuth electric push rods 72 here, and the azimuth electric push rods 72 are driven by The warehouse and the telescopic rod are composed, which is the structure of the existing electric push rod. The front end of the driving compartment is hinged on the rigid support 51, and its telescopic rod is hinged on the solar cell module fixing frame 1; the solar cell module fixing frame 1 is driven to rotate by the length change of the telescopic rod. In the same way, hydraulic linear actuators and pneumatic linear actuators can be equivalent replacements for electric linear actuators.

The azimuth tracking component is the same as the first embodiment.

Embodiment five

As shown in Figure 10 and Figure 11, the difference from Embodiment 1 is that the first transmission part of the elevation angle tracking member is a rope-shaped body including the first transmission rope 421 and the second transmission rope 422, and the first driving The device 81 includes a motor and a worm gear reducer, and a first drive sheave 819 that can cooperate with the transmission rope is installed on the output shaft of the worm gear reducer. The structure of the sheave is the same as that of the third embodiment. It is cylindrical with a small diameter in the middle and large diameters at both ends, and there are two first helical guide grooves 911 and second helical guide grooves 912 symmetrical to the middle section of the sheave on the cylindrical surface of the sheave; the first transmission rope 421 and The second transmission rope 422 is respectively arranged in the first helical guide groove 911 and the second helical guide groove 922, one end of which is fixed in the corresponding helical guide groove, and the other end is connected to the solar cell module fixing frame 1, between the two For the retraction relationship. The margin generated by the relationship between the straight line and the arc can be effectively absorbed, thereby realizing the purpose of controlling the height angle adjustment of the solar cell module fixing frame 1 .

The azimuth tracking component is the same as the first embodiment.

Embodiment six

The difference from the second embodiment is that the first transmission part of the altitude angle tracking member is a rope-shaped body including the first transmission rope 421 and the second transmission rope 422, and the first driving device 81 includes a motor and a worm gear reducer , a sheave 819 that can be matched with the transmission rope is installed on the output shaft of the worm gear reducer. And there are two first helical guide grooves 911 and second helical guide grooves 912 that are symmetrical about the mid-section plane of the sheave on the sheave cylindrical surface; the first transmission rope 421 and the second transmission rope 422 are respectively arranged One end of the groove 911 and the second helical guide groove 922 is fixed in the corresponding helical guide groove, and the other end is connected to the solar cell module fixing frame 1, and the relationship between the two is retractable. The margin generated by the relationship between the straight line and the arc can be effectively absorbed, thereby realizing the purpose of controlling the height angle adjustment of the solar cell module fixing frame 1 .

The azimuth tracking component is the same as the second embodiment.

Embodiment seven

The difference from the third embodiment is that the first transmission part of the elevation angle tracking member is a rope-shaped body including the first transmission rope 421 and the second transmission rope 422, and the first driving device 81 includes a motor and a worm gear reducer , a sheave 819 that can be matched with the transmission rope is installed on the output shaft of the worm gear reducer. And there are two first helical guide grooves 911 and second helical guide grooves 912 that are symmetrical about the mid-section plane of the sheave on the sheave cylindrical surface; the first transmission rope 421 and the second transmission rope 422 are respectively arranged One end of the groove 911 and the second helical guide groove 922 is fixed in the corresponding helical guide groove, and the other end is connected to the solar cell module fixing frame 1, and the relationship between the two is retractable. The margin generated by the relationship between the straight line and the arc can be effectively absorbed, thereby realizing the purpose of controlling the height angle adjustment of the solar cell module fixing frame 1 .

The azimuth tracking component is the same as the third embodiment.

Embodiment Eight

The difference from Embodiment 4 is that the first transmission part of the altitude angle tracking member is a rope-shaped body including the first transmission rope 421 and the second transmission rope 422, and the first driving device 81 includes a motor and a worm gear reducer , a sheave 819 that can be matched with the transmission rope is installed on the output shaft of the worm gear reducer. And there are two first helical guide grooves 911 and second helical guide grooves 912 that are symmetrical about the mid-section plane of the sheave on the sheave cylindrical surface; the first transmission rope 421 and the second transmission rope 422 are respectively arranged One end of the groove 911 and the second helical guide groove 922 is fixed in the corresponding helical guide groove, and the other end is connected to the solar cell module fixing frame 1, and the relationship between the two is retractable. The margin generated by the relationship between the straight line and the arc can be effectively absorbed, thereby realizing the purpose of controlling the height angle adjustment of the solar cell module fixing frame 1 .

The azimuth tracking component is the same as the fourth embodiment.

In the implementation of large-scale photovoltaic power station systems, the utility model can change the control box to centralized control by the general control center to realize various control methods such as light induction tracking, wind resistance and snow prevention functions, and the design of the device itself has good sand prevention , Anti-rust function.

The above-mentioned embodiments are only descriptions of preferred implementations of the present utility model, and are not intended to limit the scope of the present utility model. Variations and improvements should be extended within the scope of protection as defined in the claims of the utility model.

Claims (9)

1. double-axis tracking sunshine device, cross turning axle, elevation angle tracking means and position angle tracking means that it comprises solar module fixed mount, bracing frame, is made up of elevation angle regulating shaft and azimuth adjustment axle; It is characterized in that described solar module fixed mount is hinged on the azimuth adjustment axle of cross turning axle; Described bracing frame is hinged on the elevation angle regulating shaft of cross turning axle;

Described elevation angle tracking means comprises can make the solar module fixed mount rely on described elevation angle regulating shaft first drive disk assembly that rotates and first drive unit that is used to regulate the first drive disk assembly position; Described first drive disk assembly is connected on the azimuth adjustment axle of cross turning axle, and described first drive unit is arranged on the bracing frame;

Described position angle tracking means comprises can make the solar module fixed mount rely on described azimuth adjustment axle second drive disk assembly that rotates and second drive unit or the manual positioning device that are used to regulate the second drive disk assembly position; Described second drive disk assembly is connected on the solar module fixed mount; Described second drive unit or manual positioning device are arranged on the rigid support, and described rigid support is fixedly connected on the azimuth adjustment axle of cross turning axle or on the elevation angle regulating shaft;

Described second drive unit or manual positioning device can only rotate in the rotation of elevation angle direction with the solar module fixed mount synchronously.

2. double-axis tracking sunshine device according to claim 1; It is characterized in that; Described first drive disk assembly is the rigidity semi arch body that which is provided with drive structure, and described rigidity semi arch body two ends are fixedly connected on the azimuth adjustment axle of cross turning axle; Described first drive unit drives rigidity semi arch body and rotates.

3. double-axis tracking sunshine device according to claim 2 is characterized in that, has the drive structure of dentation on the described rigidity semi arch body; Described first drive unit comprises motor and worm type of reduction gearing, and the gear that is meshed with the drive structure of dentation is installed on the output shaft of worm type of reduction gearing.

4. double-axis tracking sunshine device according to claim 2 is characterized in that, has the drive structure of key way shape on the described rigidity semi arch body; Described first drive unit comprises motor and worm type of reduction gearing, and the sprocket wheel that matches with the drive structure of key way shape is installed on the output shaft of worm type of reduction gearing.

5. double-axis tracking sunshine device according to claim 1 is characterized in that, described first drive disk assembly is the restiform bodies that comprises first transmission rope and second transmission rope; Described first drive unit comprises motor and worm type of reduction gearing, and the rope sheave that can match with restiform bodies is installed on the output shaft of worm type of reduction gearing; Described rope sheave is the column that mid diameter is little, the two ends diameter is big, and on the rope sheave cylinder, be provided with two about rope sheave in first spiral guide slot and second spiral guide slot of discontinuity surface symmetry; Described first transmission rope and second transmission rope are separately positioned in first spiral guide slot and second spiral guide slot; Two ropes, one end is fixed in the corresponding spiral guide slot; The two rope other ends are connected on the azimuth adjustment axle of cross turning axle, are the folding and unfolding relation between the two.

6. according to claim 2,5 described double-axis tracking sunshine devices; It is characterized in that; Described second drive disk assembly and second drive unit are the flexible push rods of a cover, and it drives the cabin and is hinged on the described rigid support, and expansion link is hinged on the solar module fixed mount; Described flexible push rod can be electronic, oil pressure, air pressure line handspike.

7. according to claim 2,5 described double-axis tracking sunshine devices; It is characterized in that; Described second drive disk assembly is a harsh arc body that has groove shape or poroid angle location structure, and described harsh arc body is fixedly connected on the described solar module fixed mount; Described manual positioning device comprises the locating structure that is arranged on the described rigid support and can intert register pin between the location structure on locating structure and the described harsh arc body.

8. according to claim 2,5 described double-axis tracking sunshine devices; It is characterized in that; Described second drive disk assembly is the harsh arc body that which is provided with dentation or key way shape drive structure, and described harsh arc body is fixedly connected on the described solar module fixed mount; Described second drive unit comprises motor and worm type of reduction gearing, be equipped with on the output shaft of worm type of reduction gearing with the harsh arc body on dentation or key way shape the drive structure gear or the sprocket wheel that match.

9. according to claim 2,5 described double-axis tracking sunshine devices, it is characterized in that described second drive disk assembly is the restiform bodies that comprises the 3rd transmission rope and the 4th transmission rope; Said second drive unit comprises motor and worm type of reduction gearing, and the rope sheave that can match with restiform bodies is installed on the output shaft of worm type of reduction gearing; Said rope sheave is the column that mid diameter is little, the two ends diameter is big, and on the rope sheave cylinder, be provided with two about rope sheave in the triple helical gathering sill and the 4th spiral guide slot of discontinuity surface symmetry; Described the 3rd transmission rope and the 4th transmission rope are separately positioned in triple helical gathering sill and the 4th spiral guide slot; Two ropes, one end is fixed in the corresponding spiral guide slot; The two rope other ends are connected on the solar module fixed mount, are the folding and unfolding relation between the two.

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