WO2018133701A1

WO2018133701A1 - Single-shaft/double-shaft solar tracking device based on crankshaft linkage rod transmission

Info

Publication number: WO2018133701A1
Application number: PCT/CN2018/071884
Authority: WO
Inventors: 李樱子
Original assignee: 李樱子
Priority date: 2017-01-18
Filing date: 2018-01-09
Publication date: 2018-07-26
Also published as: CN106774455A; CN106774455B

Abstract

A single-shaft/double-shaft solar tracking device based on crankshaft linkage rod transmission. The single-shaft solar tracking device can only track an azimuth of the sun, and the double-shaft solar tracking device can simultaneously track an azimuth and an altitude of the sun. The single-shaft solar tracking device is formed by sequentially arranging a plurality of single-shaft tracking units and connecting the same. The double-shaft solar tracking device is formed by arranging a plurality of double-shaft tracking units in matrix form and connecting the same. A crankshaft linkage rod is arranged between adjacent single-shaft tracking units or adjacent double-shaft tracking units to implement transmission, and there is only one power source. The embodiment is simple in device structure and strong in terrain adaptivity, is utilized to implement double-shaft tracking using a single-drive mechanism, has no risk of overtravel, and is high in the cost-performance ratio.

Description

Single-axis/double-axis solar tracking device based on crankshaft connecting rod drive

Technical field

The invention relates to a solar energy tracking device, in particular to a single-axis/double-axis solar tracking device based on crankshaft connecting rod transmission.

Background technique

The existing solar single-axis tracking device can generally be installed only in a flat field, and the direction of the series connection between the tracking units must be on the east-west axis, which limits the application range or increases the construction cost; and the existing solar energy The two-axis tracking device uses two sets of driving devices to drive the tracking of the elevation angle and the azimuth angle, and each tracking unit works independently, which greatly increases the cost.

Summary of the invention

In view of the above deficiencies, the present invention provides a single-axis/two-axis solar tracking device based on crankshaft linkage transmission.

The technical solution adopted by the present invention to solve the technical problem is as follows: a single-axis solar tracking device based on crankshaft link transmission, which is formed by sequentially arranging a plurality of single-axis tracking units including a column, A first crankshaft is hinged on the column, and a first worm gear reducer and a driving mechanism are mounted on one of the single-axis tracking units, and the driving mechanism drives the first worm gear reducer, the output end of the first worm gear reducer and the first crankshaft The coaxial fixed connection, the first crankshaft of two adjacent single-axis tracking units is connected by a connecting rod, and the component support frame is hinged on the column, the hinge point is a, and the component support frame passes the first crank linkage mechanism and the first A crankshaft is connected, and a photovoltaic module is fixed on the component support frame.

Further, the first crank link mechanism comprises a sprocket, a roller chain plate and a transmission rod, wherein the sprocket is coaxially fixedly connected with the first crankshaft, and the roller chain plate is hinged on the column, and the hinge point is b. One end of the transmission rod is hinged with the roller chain ball, the hinge point is c, the other end of the transmission rod is hinged with the component support frame ball, and the hinge point is d, and the sprocket and the roller chain plate mesh and transmit.

Further, the distance L1 between the hinge points bc is smaller than the distance L2 between the hinge points ad.

Another object of the present invention is a dual-axis solar tracking device based on crankshaft link transmission, characterized in that it is formed by a rectangular array of a plurality of biaxial tracking units, and the two-axis tracking unit includes a column. A first crankshaft is hinged on the column, and a first worm gear reducer is mounted on all the two-axis tracking units on one of the north and south columns, and the output end of the first worm gear reducer is coaxially fixedly connected with the first crankshaft, first The crankshaft is coaxially fixedly connected with a second crankshaft. The input end of the first worm gear reducer is coaxially fixedly connected with a third crankshaft. A driving mechanism is mounted on a two-axis tracking unit on the north and south columns, and the driving mechanism drives the first worm wheel. a worm reducer, wherein a third crankshaft of two adjacent two-axis tracking units on the north-south column is connected by a connecting rod; and a first crankshaft of two adjacent two-axis tracking units is connected by a connecting rod on the east-west column; A rotating support frame is hinged, the hinge point is i, and the rotary support frame is connected to the first crankshaft through a first crank linkage mechanism, and the fourth crankshaft and the component support frame are hinged on the rotary support frame. The hinge point of the component support frame is e, the fourth crankshaft is connected to the component support frame by a second crank link mechanism, and the fourth crankshaft and the second crankshaft are connected by a connecting rod, and the component support frame is fixed with a photovoltaic module.

Further, the first crank link mechanism and the second crank link mechanism have the same structure, and each includes a sprocket, a roller chain plate and a transmission rod; and the first support mechanism is coupled to the first through the first crank link mechanism When the crankshaft is connected, the sprocket is coaxially fixedly connected with the first crankshaft, the roller chain plate is hinged on the column, the hinge point is j, one end of the transmission rod is hinged with the roller chain ball, the hinge point is k, the transmission rod The other end is hinged with the rotating support frame ball, the hinge point is l, the sprocket and the roller chain plate mesh with the transmission; when the fourth crankshaft is connected to the component support frame by the second crank linkage mechanism, the fourth crankshaft and the A commutator is connected between the two crank linkages, the commutator includes a driving bevel gear and a driven bevel gear, and the driven bevel gear is hinged on the rotating support frame, and the driving bevel gear is coaxial with the fourth crankshaft Fixed connection, the driven bevel gear is coaxially fixedly connected with the sprocket, the roller chain plate is hinged on the rotating support frame, the hinge point is f, one end of the transmission rod is hinged with the roller chain ball, the hinge point is g, the transmission rod The other end is hinged to the component support frame, hinged Point is h, the roller chain sprocket engagement disc drive.

Further, the distance L3 between the hinge points fg is smaller than the distance L4 between the hinge points he; the distance L5 between the hinge points jk is smaller than the distance L6 between the hinge points ie.

Further, the fourth crankshaft and the second crankshaft are connected by a connecting rod, and the transmission ratio is 1; in the first crank linkage mechanism, the transmission ratio of the sprocket and the roller chain is i1, and the second crank is connected In the rod mechanism, the gear ratio of the sprocket and the roller chain is i2, and the ratio of i1 and i2 is 1:2.

Further, the driving mechanism comprises a motor and a second worm gear reducer, and the motor drives the second worm gear reducer to rotate.

Further, the roller chain plate includes a disc, a roller and a rivet, and the roller is uniformly hinged on the circumference of the disc by a rivet.

Further, the connecting rod is composed of two rod end joint bearings, two double studs and one threaded sleeve, and the two studs are connected by a threaded sleeve, and the outer ends of each stud are studs Connect a rod end joint bearing.

The beneficial effects of the present invention are as follows: the solar single-axis tracking device is composed of a plurality of tracking units, and a driving device can drive all the tracking units to track the azimuth of the sun, and the terrain adaptability is strong, and the unevenness is not The site of the rule boundary can be installed normally, the installation cost is low, and the scope of application is wide. The solar dual-axis tracking device is composed of a plurality of tracking unit rectangular arrays, and all the tracking units can be driven by a set of driving devices to realize the solar elevation angle and the sun. Simultaneous tracking of azimuth, low production and installation costs.

DRAWINGS

1 is a schematic overall structural view of Embodiment 1 of the present invention;

2 is a schematic structural diagram of a single-axis tracking unit according to Embodiment 1 of the present invention;

3 is a schematic exploded view of a component support frame mounted on a column according to Embodiment 1 of the present invention;

4 is a schematic view showing the assembly of the component support frame mounted on the column according to Embodiment 1 of the present invention;

FIG. 5 is a schematic view showing the installation of a roller chain plate according to an embodiment of the present invention; FIG.

6 is a schematic diagram of a tracking sun azimuth according to Embodiment 1 of the present invention;

Figure 7 is a schematic view showing the engagement of a roller chain plate and a sprocket according to Embodiment 1 of the present invention;

FIG. 8 is a schematic structural view of a link according to an embodiment of the present invention; FIG.

9 is a schematic overall structural view of Embodiment 2 of the present invention;

10 is a schematic structural diagram of a dual-axis tracking unit according to Embodiment 2 of the present invention;

Figure 11 is a schematic view showing the meshing structure of the roller chain plate and the sprocket according to Embodiment 2 of the present invention;

12 is a schematic structural view of a commutator according to Embodiment 2 of the present invention;

13 is a schematic diagram of tracking a solar height angle according to Embodiment 2 of the present invention;

14 is a schematic diagram of a tracking sun azimuth according to Embodiment 2 of the present invention;

In the figure: column 1, first crankshaft 2, first worm gear reducer 3, drive mechanism 4, connecting rod 5, component support frame 6, first crank linkage mechanism 7, photovoltaic assembly 8, third crankshaft 9, rotation Support frame 10, second crankshaft 11, second crank linkage 12, commutator 13, bolt 14, first retaining ring 15, joint bearing 16, second retaining ring 17, flat washer 18, spring washer 19, nut 20. Bearing fixing plate 21, fourth crankshaft 22, driving bevel gear 131, driven bevel gear 132, motor 401, second worm gear reducer 402, rod end joint bearing 501, double stud 502, threaded sleeve 503 The sprocket 701, the roller chain 702, the transmission rod 703, the disk 7021, the roller 7022, the rivet 7023, and the third crankshaft 901.

detailed description

The invention will be further described below in conjunction with the drawings and embodiments.

Example 1:

As shown in FIG. 1-2, a single-axis solar tracking device based on crankshaft link transmission is formed by sequentially arranging a plurality of single-axis tracking units that perform tracking azimuth operation, and the single-axis tracking unit includes The first column 2 is hinged on the column 1, and the first worm gear reducer 3 and the driving mechanism 4 are mounted on one of the single-axis tracking units, and the driving mechanism 4 drives the first worm gear reducer 3, first The worm gear reducer 3 is connected to the first crankshaft 2 to drive the first crankshaft 2 to rotate. The drive mechanism 4 includes a motor 401 and a second worm gear reducer 402. The motor 401 drives the second worm gear reducer 402 to rotate. The worm gear reducer 402 is connected to the first worm gear reducer 3; the first crankshaft 2 of two adjacent single-axis tracking units is connected by the connecting rod 5 to realize synchronous movement; the component support frame 6 is hinged on the column 1 The hinge point is a, and the component support frame 6 is connected to the first crankshaft 2 via a first crank linkage mechanism 7, on which the photovoltaic module 8 is fixed.

The drive mechanism 4 includes a motor 401 and a second worm gear reducer 402. The motor 401 drives the second worm gear reducer 402 to rotate.

As shown in FIGS. 3 and 4, the component support frame 6 is connected and connected by a bolt 14, a first retaining ring 15, a joint bearing 16, a second retaining ring 17, a flat washer 18, a spring washer 19, a nut 20, and a bearing fixing plate 21. On the column 1, the column 1 is fixed, the bearing fixing plate 21 is fixedly mounted with the column 1, the joint bearing 16 is fixedly mounted with the bearing fixing plate 21, and the bolt 14 sequentially passes through the first retaining ring 15, the joint bearing 16, and the second retaining ring. 17. The flat washer 18 and the spring washer 19 are coupled to the nut 20 to connect the assembly support frame 6 to the bearing retaining plate 21; at this time, the component support frame 6 can be pivoted about the joint bearing 16. The rod end joint bearing used at the joint between the two ends of the transmission rod 703 and the roller chain 702 and the component support frame 6 also has the function of the centering function, so that the roller chain plate 702 can be used. The component support frame 6 is driven to rotate at a certain angle with the column 1 . The characteristic of this working principle is that the two component support frames driven by the two synchronously moving roller chain plates 702 can not rotate on the same axis, thereby improving the ability of the tracking device to be installed and used on irregular terrain.

As shown in FIG. 7, the first crank linkage mechanism 7 includes a sprocket 701, a roller chain 702, and a transmission rod 703. The sprocket 701 is coaxially fixedly coupled to the first crankshaft 2, and the roller chain 702 It is hinged on the column 1 and has a hinge point b. One end of the transmission rod 703 is hinged to the roller chain 702, and the hinge point is c. The other end of the transmission rod 703 is hinged to the component support frame 6 and the hinge point is d. The wheel 701 meshes with the roller chain 702. The sprocket 701 is coaxially fixedly coupled to the first crankshaft 2. When the first crankshaft 2 rotates, the sprocket 701 drives the roller chain 702 to rotate, and the roller chain 702 transmits the motion to the component support frame 6 through the transmission rod 703. Thereby, the photovoltaic module 8 fixed on the component support frame 6 is driven to track the azimuth of the sun.

As shown in FIG. 5, the roller chain 702 includes a disc 7021, a roller 7022, and a rivet 7023. The roller 7022 is uniformly hinged on the circumference of the disc 7021 by a rivet 7023; the roller chain 702 is driven When the rod 703 drives the assembly support frame 6 to rotate, a transmission pair of the crank link is formed, so that the distance L1 between the hinge points bc is smaller than the distance L2 between the hinge points ad. When the roller chain 702 is rotated all the time, the component supports The frame 6 will oscillate within the angle α, and the size of α can be adjusted by adjusting the lengths of L1, L2 and the transmission rod 703. This working principle is characterized in that the motor can realize the azimuth of the solar module to the sun without the need of forward and reverse rotation. Tracking and resetting, and there is no damage to the tracking device caused by motor runaway, as shown in Figure 6.

The rotation of the roller chain plate 702 is carried by the sprocket 701 fixed to the first crankshaft 2, and the first crankshaft 2 of each tracking unit realizes synchronous movement by the connecting rod 5, which is composed of two rod end joint bearings 501 Two double studs 502 and one threaded sleeve 503 are connected. The two studs 502 are connected by a threaded sleeve 503, and the outer end of each stud 502 is connected to a rod end joint bearing 501. By adjusting the depth of the stud 502 screwed into the threaded sleeve 503, the axial distance of the two rod end joint bearings 501 can be adjusted, as shown in FIG. Based on the rod end joint bearing having the function of the centering function, the connecting rod 5 can be at an angle with the first crankshaft 2 and does not affect the synchronous movement of the crankshafts of the tracking units. The characteristic of this working principle is that the various tracking units linked by the connecting rods can be installed on one axis, thereby improving the ability of the tracking device to be installed and used on irregular terrain.

Example 2:

As shown in FIGS. 9 and 10, a two-axis solar tracking device based on a crankshaft link transmission is formed by a plurality of rectangular arrays of two-axis tracking units that perform tracking of an altitude angle of the sun and an azimuth of the sun. The two-axis tracking unit comprises a column 1 on which a first crankshaft 2 is hinged, and a first worm gear reducer 3 is mounted on all of the two-axis tracking units on a north-south column, and the first worm gear reducer 3 outputs The first crankshaft 2 is coaxially fixedly connected to the first crankshaft 2, and the first crankshaft 2 is coaxially fixedly connected with the second crankshaft 11 . The input end of the first worm gear reducer 3 is coaxially fixedly connected with the third crankshaft 9 on the north and south columns. A driving mechanism 4 is mounted on a two-axis tracking unit, and the driving mechanism 4 drives the first worm gear reducer 3, and the third crankshaft 9 of two adjacent two-axis tracking units on the north-south column is connected by the connecting rod 5 to realize synchronization. Movement, thereby realizing the synchronous movement of the first worm gear reducer 3 of the two-axis tracking unit on the north-south column; the first crankshaft 2 of two adjacent two-axis tracking units on the east-west column is connected by the connecting rod 5, thereby realizing the column Synchronous motion A rotating support frame 10 is hinged on the column 1 and has a hinge point i. The rotary support frame 10 is connected to the first crankshaft 2 via a first crank linkage mechanism 7. The fourth crankshaft 22 and the component support frame are hinged on the rotary support frame 10. 6. The hinge point of the component support frame 6 is e, the fourth crankshaft 22 is connected to the component support frame 6 through the second crank linkage mechanism 12, and the fourth crankshaft 22 and the second crankshaft 11 are connected by the connecting rod 5 to realize synchronous movement. A photovoltaic module 8 is fixed to the component support frame 6.

The driving mechanism 4 includes a motor 401 and a second worm gear reducer 402. The motor 401 drives the second worm gear reducer 402 to rotate, and the second worm gear reducer 402 is connected to the first worm gear reducer 3.

The first crank link mechanism 7 and the second crank link mechanism 12 are identical in structure, and each includes a sprocket 701, a roller chain 702 and a transmission rod 703; the first support linkage mechanism is passed through the first crank linkage mechanism 7 is connected to the first crankshaft 2, the sprocket 701 is coaxially fixedly connected with the first crankshaft 2, the roller chain 702 is hinged on the column 1, the hinge point is j, one end of the transmission rod 703 and the roller chain plate 702 ball hinged, hinge point is k, the other end of the transmission rod 703 is hinged with the rotating support frame 10, the hinge point is l, the sprocket 701 meshes with the roller chain 702; the fourth crankshaft 22 passes the second When the crank link mechanism 12 is connected to the component support frame 6, a commutator 13 is connected between the fourth crankshaft 22 and the second crank link mechanism 12, and the commutator 13 includes a driving bevel gear 131 and a driven bevel gear. 132, as shown in FIGS. 11 and 12, the driving bevel gear 131 and the driven bevel gear 132 are vertically mounted on the housing, the transmission ratio is 1, and the driven bevel gear 132 is hinged on the rotating support frame 10, the active The bevel gear 131 is coaxially and fixedly connected to the fourth crankshaft 22, and the driven bevel gear 132 is coaxially fixedly connected with the sprocket 701, and is rolled. The chain plate 702 is hinged on the rotating support frame 10, the hinge point is f, one end of the transmission rod 703 is hingedly connected with the roller chain plate 702, the hinge point is g, and the other end of the transmission rod 703 is hingedly connected with the component support frame 6 and hinged. The point is h, and the sprocket 701 meshes with the roller chain 702.

The roller chain 702 includes a disc 7021, a roller 7022 and a rivet 7023. The roller 7022 is uniformly hinged on the circumference of the disc 7021 by a rivet 7023; the distance L3 between the hinge points fg is smaller than the hinge point he Between the distance L4, when the roller chain 702 is rotated all the time, the component support frame 6 will swing in the range of β angle, and the size of β can be adjusted by adjusting the lengths of L3, L4 and the transmission rod 703. The characteristic is that the motor can track and reset the solar module to the solar height angle without the need of positive and negative reversal, and there is no damage to the tracking device caused by the motor out of control, as shown in FIG. The distance L5 between the hinge points jk is made smaller than the distance L6 between the hinge points il. When the roller chain 702 is rotated all the time, the rotary support frame 10 swings within the gamma angle range by adjusting L5, L6 and the transmission rod 703. The length of the γ can be adjusted. The characteristic of this working principle is that the motor can track and reset the solar azimuth of the solar module without positive and negative reversal, and there is no damage to the tracking device caused by the motor out of control. 14 is shown.

A sprocket 701 is fixed on the first crankshaft 2, and the sprocket 701 drives the roller sprocket 702 to rotate while the first crankshaft 2 rotates. The roller sprocket 702 drives the rotating support frame 10 to rotate through the transmission rod 703, thereby driving the installation. The component support frame 6 on the rotating support frame 10 rotates, thereby driving the photovoltaic module 8 fixed to the component support frame 6 to realize the movement of tracking the solar azimuth angle, while the first crankshaft 2 is coaxially fixed with the second crankshaft 11 and the second crankshaft 11 The fourth crankshaft 22 mounted on the rotating support frame 10 is synchronously moved by the connecting rod 5, thereby driving the commutator 13 to rotate, the commutator 13 drives the sprocket 701 connected thereto to rotate, and the sprocket 701 drives the roller chain plate. When the 702 is rotated, the roller chain 702 drives the component support frame 6 to rotate by the transmission rod 703, thereby driving the photovoltaic module 8 fixed on the component support frame 6 to track the movement of the solar elevation angle; during the implementation, the second crankshaft 11 and The transmission ratio of the fourth crankshaft 22 is 1. In the first crank linkage mechanism, the transmission ratio of the sprocket and the roller sprocket is i1, and in the second crank linkage, the transmission of the sprocket and the roller sprocket The ratio of i2, i1 and i2 is 1 :2. By setting the transmission ratio of the sprocket 701 and the roller sprocket 702, the two-axis tracking device completes an action of tracking the solar azimuth from east to west, and the tracking sun elevation angle is changed from small to large from early to late. The smaller the action, that is, the roller chain 702 of the rotary support frame 10 is rotated one turn, and the roller chain plate 702 of the drive unit support frame 6 is rotated two times.

Claims

A single-axis solar tracking device based on crankshaft connecting rod transmission, characterized in that it is formed by sequentially connecting a plurality of single-axis tracking units, wherein the single-axis tracking unit comprises a column, and a first crankshaft is hinged on the column, A first worm gear reducer and a driving mechanism are mounted on one of the single-axis tracking units, and the driving mechanism drives the first worm gear reducer, and the output end of the first worm gear reducer is coaxially fixedly connected with the first crankshaft, adjacent The first crankshafts of the two single-axis tracking units are connected by a connecting rod, and the component supporting frame is hinged on the column, the hinge point is a, and the component supporting frame is connected to the first crankshaft through the first crank connecting rod mechanism, and the component supporting A photovoltaic module is fixed on the frame.
The crankshaft link transmission-based single-axis solar tracking device according to claim 1, wherein the first crank link mechanism comprises a sprocket, a roller chain plate and a transmission rod, and the sprocket and the first The crankshaft is coaxially fixedly connected, the roller chain plate is hinged on the column, the hinge point is b, one end of the transmission rod is hinged with the roller chain ball, the hinge point is c, and the other end of the transmission rod is hinged with the component support frame, and hinged The point is d, and the sprocket and the roller chain drive mesh.
A single-axis solar tracking device based on crankshaft link transmission according to claim 2, wherein the distance L1 between the hinge points bc is smaller than the distance L2 between the hinge points ad.
A dual-axis solar tracking device based on crankshaft connecting rod transmission, characterized in that it is formed by a plurality of biaxial tracking unit rectangular arrays arranged, the two-axis tracking unit comprises a column, and the first column is hinged on the column The crankshaft has a first worm gear reducer mounted on all the two-axis tracking units on one of the north and south columns. The output end of the first worm gear reducer is coaxially fixedly connected with the first crankshaft, and the first crankshaft is coaxially fixedly connected. a crankshaft, a first crankshaft is fixedly connected to the input end of the first worm gear reducer, and a driving mechanism is mounted on a two-axis tracking unit on the north-south column, and the driving mechanism drives the first worm gear reducer in the north and south The third crankshafts of two adjacent two-axis tracking units are connected by a connecting rod; the first crankshafts of two adjacent two-axis tracking units are connected by a connecting rod on the east-west column; a rotating support frame is hinged on the column, and the hinge is hinged Point i, the rotating support frame is connected to the first crankshaft through a first crank linkage mechanism, and the fourth crankshaft and the component support frame are hinged on the rotating support frame, and the hinge point of the component support frame For e, the fourth crankshaft is coupled to the component support frame by a second crank linkage mechanism, and the fourth crankshaft and the second crankshaft are connected by a connecting rod, and the component support frame is fixed with a photovoltaic module.
The crankshaft link transmission-based dual-axis solar tracking device according to claim 4, wherein the first crank link mechanism and the second crank link mechanism have the same structure, and both include a sprocket and a roller chain plate. And a transmission rod or the like; when the rotating support frame is connected to the first crankshaft through the first crank linkage mechanism, the sprocket is coaxially fixedly connected with the first crankshaft, and the roller chain plate is hinged on the column, and the hinge point is j, one end of the transmission rod is hinged with the roller chain ball, the hinge point is k, the other end of the transmission rod is hinged with the rotating support frame ball, the hinge point is l, the sprocket and the roller chain plate mesh with the transmission; When the four crankshafts are connected to the component support frame through the second crank linkage mechanism, a commutator is connected between the fourth crankshaft and the second crank linkage mechanism, and the commutator includes a driving bevel gear and a driven bevel gear. The moving bevel gear is hinged on the rotating support frame, the driving bevel gear is coaxially fixedly connected with the fourth crankshaft, the driven bevel gear is coaxially fixedly connected with the sprocket, and the roller chain plate is hinged on the rotating support frame, and the hinge point is f, one end of the drive rod and roll Sprocket ball hinge, the hinge point of the other end of the ball bracket hinge assembly, the hinge point g, the transmission rod is h, the roller chain sprocket engagement disc drive.
A single-axis solar tracking device based on crankshaft link transmission according to claim 5, wherein the distance L3 between the hinge points fg is smaller than the distance L4 between the hinge points he; the distance L5 between the hinge points jk is smaller than The distance L6 between the hinge points il.
The crankshaft link transmission-based single-axis solar tracking device according to claim 5, wherein the fourth crankshaft and the second crankshaft are connected by a connecting rod, the gear ratio is 1; in the first crank connecting rod mechanism In the second crank linkage, the transmission ratio of the sprocket and the roller chain is i2, and the ratio of i1 and i2 is 1:2.
The solar energy tracking device according to claim 1 or 4, wherein the driving mechanism comprises a motor and a second worm gear reducer, and the motor drives the second worm gear reducer to rotate.
A solar tracking device according to claim 1 or 4, wherein the roller chain includes a disc, a roller and a rivet, the roller being uniformly hinged to the circumference of the disc by a rivet.
The solar tracking device according to claim 1 or 4, wherein the connecting rod is composed of two rod end joint bearings, two stud bolts and a threaded sleeve, and the two studs pass through The threaded sleeves are connected, and the outer end of each double stud is connected to a rod end joint bearing.