WO2018077106A1

WO2018077106A1 - Dual-axle tracking apparatus

Info

Publication number: WO2018077106A1
Application number: PCT/CN2017/106870
Authority: WO
Inventors: 包卫明; 郭新明; 杨科亚
Original assignee: 上海施步新能源科技有限公司
Priority date: 2016-10-27
Filing date: 2017-10-19
Publication date: 2018-05-03
Also published as: CN107992095B; CN107992095A

Abstract

A dual-axle tracking apparatus comprising: a rotating platform (100) comprising an inner cylinder (110) and an outer cylinder (120), the outer cylinder (120) being rotatively sleeved on the inner cylinder (110); a support frame (300) comprising a crossbeam (310) and a main frame bracket (320), the crossbeam (310) being fixedly arranged on the top of the outer cylinder (120), the main frame bracket (320) being rotatively connected to the crossbeam (310), and the main frame bracket (320) being used for mounting a solar panel (A); a first rotating mechanism (200) and a second rotating mechanism (400), both rotating mechanisms (200 and 400) being fundamentally identical in terms of structure, both comprising plate-shaped support frames (210 and 410), traction cables (220 and 420), input shafts (230 and 430), and swinging arms (240 and 440). The input shafts (230 and 430) drive the traction cables (220 and 420) to slide along the periphery of the plate-shaped support frames (210 and 410). The traction cables (220 and 420) drive the swinging arms (240 and 440) to rotate. In the first rotating mechanism (200), the first swinging arm (240) drives the outer cylinder (120) to rotate around the inner cylinder (110). In the second rotating mechanism (400), the second swinging arm (440) drives the main frame bracket (320) to rotate around the crossbeam (310). The dual-axle tracking apparatus implements two degrees of freedom in the operation of the solar panel (A) mounted on the main frame bracket (320), is structurally solid, runs steadily, and is inexpensive to manufacture.

Description

Dual axis tracking device

Technical field

The invention relates to the technical field of mechanism design of a tracking system, in particular to a two-axis tracking device.

Background technique

CSP (Concentrating Solar Power) is a solar power generation technology that coexists with photovoltaic power generation. The most effective way of this technique is to use large-scale array lenses to collect sunlight, and then project the sunlight onto a centralized collector. The concentrated sunlight generates steam through the heat exchanger, and then the steam drives the turbine to generate electricity. Solar thermal power generation technology directly uses the thermal energy of sunlight to concentrate, uses thermal energy to generate steam expansion, and mechanical energy generated by steam expansion drives the generator set into electrical energy. At the same time, the heat exchange device and steam of solar thermal energy are concentrated, and the heat energy can be stored by itself, and the generator set can still be driven without the sun for a certain period of time. Therefore, the power generation of the technology is more stable and the impact on the power grid is smaller.

Since the collector for collecting heat energy in the solar thermal power generation system is in a fixed position, the solar panel is also in a fixed position, and the relative position of the sun is changing every moment, so the solar panel must be fixed in an independent manner. On the device, the device must adjust the angle of the solar panel in real time so that the angle between the sun and the lens (incident angle) and the angle between the collector and the lens (reflection angle) are always equal, while the center line of the reflected light passes. The center of the collector.

The prior art has proposed a multi-structured two-axis tracking device. The horizontal angle and the vertical angle of the solar panel can be effectively adjusted by the two-axis tracking device, so that the solar panel can always be aligned with the sun, thereby more fully absorbing sunlight. The existing two-axis tracking device generally has a complicated structure, is unstable in operation, and is not accurate enough for the angle adjustment of the solar panel.

Accordingly, the Applicant is directed to providing a novel dual axis tracking device.

Summary of the invention

It is an object of the present invention to provide a two-axis tracking device that can adjust the vertical of a solar panel The straight angle and the horizontal angle realize the two-degree-of-freedom operation of the solar panel, and the structure is stable, the operation is stable, and the cost is low.

In order to solve the above technical problem, the present invention provides a two-axis tracking device, comprising: a rotating platform, including an inner cylinder and an outer cylinder, the outer cylinder is rotatably sleeved on the inner cylinder; the first slewing mechanism includes a disc-shaped bracket, a first traction rope, a first input shaft and a first swing arm, the first disc-shaped bracket is fixed at a bottom of the inner cylinder of the rotating platform, and the outer circumference of the first disc-shaped bracket has a winding a wire end, the first traction rope is wound around a winding end of the first disk-shaped bracket, the first input shaft is coupled to the first traction rope, and the first input shaft is used to drive the The first traction rope slides along the winding end of the first disc-shaped bracket, the first end of the first swing arm is connected to the first traction rope, and the second end thereof is external to the rotating platform The first traction rope drives the first swing arm to rotate, and the first swing arm further drives the outer cylinder to rotate on the inner cylinder.

The two-axis tracking device further includes: a bracket including a beam and a main frame, the beam is fixedly disposed at a top of the outer cylinder of the rotating platform, the main frame is rotatably connected with the beam; and the second slewing mechanism includes a second disc-shaped bracket, a second traction rope, a second input shaft and a second swing arm, wherein the second disc-shaped bracket is fixed on the cross beam, and the outer circumference of the second disc-shaped bracket has a winding end a second traction rope is disposed on the winding end of the second disc-shaped bracket, the second input shaft is coupled to the second traction rope, and the second input shaft is configured to drive the second traction a cord is slid along a winding end of the second disc-shaped bracket, a first end of the second swing arm is coupled to the second leash, and a second end is coupled to the main frame, the second The traction rope drives the second swing arm to rotate, and the second swing arm further drives the main frame to rotate around the cross beam.

Preferably, the main frame includes a frame body and a plurality of connecting members, the frame body is used for mounting a solar light panel, the connecting member is fixedly connected to the frame body, and the connecting member is sleeved on the beam The connecting member is configured to drive the frame to rotate around the beam.

Preferably, the first input shaft is coupled to a first worm gear reducer, the first input shaft drives the first traction rope to slide by the first worm gear reducer; and/or; The two input shafts include a first sub input shaft and a second sub input shaft that are vertically connected, and the first sub input shaft and the second sub input shaft are connected by a second worm gear reducer, the first sub-transmission The input shaft is connected to the second sub-input shaft after passing through the inner cylinder and the outer cylinder along a central axis of the rotating platform, and the second sub-input shaft is coupled to the second traction rope.

Preferably, the rotating platform further includes a pair of limiting bearings, the limiting bearing is located between the outer cylinder and the inner cylinder, and the limiting bearing is sleeved on the inner cylinder, a pair of the limit There is a gap between the bearings.

Preferably, in the first slewing mechanism, a winding portion for limiting the first traction rope is disposed on a winding end of the first disc-shaped bracket; in the second slewing mechanism The winding end of the second disc-shaped bracket is provided with a latching portion for limiting the second traction rope.

Preferably, the latching portion is a groove; and/or; a winding end of the first disc-shaped bracket and a winding end of the second disc-shaped bracket are respectively provided with a plurality of pulleys, the pulley The card portion is provided on the outer peripheral wall.

Preferably, the first end of the first swing arm is provided with a first connecting member, the first connecting member is fixedly connected with the first traction rope, and the first connecting member is at the first traction rope The sliding on the winding end of the first disc-shaped bracket is driven.

Preferably, the connecting portion of the first traction rope connected to the first connecting member is a continuous structure, and the continuous structure is disposed on the first connecting member; or the first traction rope and the first traction rope The connecting portion of the first connecting member has a first opening, and the two ends of the first pulling rope at the first opening are respectively fixed at both ends of the first connecting member.

Preferably, the connecting portion of the first traction rope connected to the first input shaft has a second opening, and the first end and the second end of the traction rope at the second opening are respectively wrapped around the first An input shaft is coupled to the first end of the first traction rope at the second end of the first traction shaft while simultaneously discharging the second end thereof.

Preferably, the first end of the first traction rope is wound in a first direction in a first direction in a first direction of the first input shaft, and the second end thereof is wound in the second direction in the first direction a second segment of the input shaft, and the first direction is opposite the second direction.

Preferably, the connecting portion of the first traction rope connected to the first input shaft is a continuous structure, and the continuous structure is tensioned by the first input shaft.

The dual axis tracking device of the present invention can achieve at least one of the following beneficial effects.

1. The dual-axis tracking device of the present invention can realize the operation of the solar panel mounted on the main frame in two degrees of freedom through the first slewing mechanism and the second slewing mechanism, respectively, wherein the rotating platform has a reliable structure and can effectively avoid When the outer cylinder rotates on the inner cylinder, the overturning phenomenon occurs. In addition, the two rotary structures are simple and reliable in operation. By selecting the specific size of the disc bracket and the swing arm, the output shaft (the outer cylinder of the rotating platform and the main frame of the bracket) can be Applying a large force arm and torque to ensure smooth rotation of the outer cylinder and the main frame.

2. The rotating platform of the two-axis tracking device of the present invention can further ensure the running stability of the rotating platform and enhance its anti-overturning performance by providing a limit bearing between the inner cylinder and the outer cylinder.

DRAWINGS

The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

1 is a schematic structural view of a specific embodiment of a two-axis tracking device of the present invention;

Figure 2 is a schematic view of the two-axis tracking device shown in Figure 1 in another view;

Figure 3 is a schematic view of the two-axis tracking device shown in Figure 1 in another view;

4 is a schematic structural view of a rotating platform in the two-axis tracking device shown in FIG. 1;

Figure 5 is a partial cross-sectional view of the rotary platform shown in Figure 4;

Figure 6 is a schematic structural view of the inner cylinder of the rotating platform shown in Figure 4;

Figure 7 is a schematic structural view of a first swing mechanism in the two-axis tracking device shown in Figure 1;

Figure 8 is a partially enlarged schematic structural view of the first swing mechanism shown in Figure 7;

Figure 9 is a schematic structural view of a second swing mechanism in the two-axis tracking device shown in Figure 1;

Figure 10 is a schematic view showing the installation of the second input shaft in the second swing mechanism shown in Figure 9;

Figure 11 is a partially enlarged perspective view showing the second input shaft shown in Figure 10;

Figure 12 is a partially enlarged perspective view showing the second input shaft shown in Figure 10;

Figure 13 is a schematic view showing the structure of the bracket in the two-axis tracking device shown in Figure 1.

Description of the reference numerals:

Rotating platform 100, inner cylinder 110, outer cylinder 120, thrust bearing 130, limit bearing 140;

The first slewing mechanism 200, the first disc-shaped bracket 210, the first traction rope 220, the first input shaft 230, the first swing arm 240;

Bracket 300, beam 310, main frame 320;

a second slewing mechanism 400, a second disk-shaped bracket 410, a second traction rope 420, a second input shaft 430, a first sub-input shaft 431, a third sub-input shaft 432, a steering 433, a second swing arm 440;

Solar panel A.

detailed description

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the description of the prior art will be briefly described below. Obviously, the drawings in the following description are only It is a certain embodiment of the present invention, and other drawings can be obtained from those skilled in the art without any creative work.

As shown in FIGS. 1 to 3, the present embodiment discloses a two-axis tracking device including a rotating platform 100, a first slewing mechanism 200, a bracket 300, and a second slewing mechanism 400.

As shown in FIGS. 4 to 6, the rotary table 100 includes an inner cylinder 110 and an outer cylinder 120, and the outer cylinder 120 is rotatably sleeved on the inner cylinder 110. Specifically, the inner cylinder 110 is provided with a thrust bearing 130, the outer cylinder 120 is sleeved on the inner cylinder 110, and the outer cylinder 120 is rotated by the thrust bearing 130 on the inner cylinder 110.

Specifically, the rotating platform 100 further includes a pair of limiting bearings 140. The limiting bearing 140 is located between the outer cylinder 120 and the inner cylinder 110. The inner circumferential surface of the limiting bearing 140 is fixedly sleeved on the inner cylinder 110, and the outer circumferential surface is The inner wall of the outer cylinder 120 is fitted, and a pair of the limit bearings 140 have a spacing therebetween.

Specifically, an outer peripheral wall of the inner cylinder 110 of the rotary platform 100 is provided with an extension portion (not shown), and the extension portion extends toward the outer cylinder 120; the outer cylinder 120 is provided with a plurality of limiting members (in the figure) Not shown), the stop member is preferably a screw and the screw is disposed below the extension. The extension portion blocks the screw from jumping out of the inner cylinder 110 in the vertical direction, thereby effectively ensuring structural stability between the inner cylinder 110 and the outer cylinder 120, further ensuring the rotation platform 100. Operational stability.

As shown in FIG. 7 and FIG. 8 , the first slewing mechanism 200 includes a first disc-shaped bracket 210 , a first traction rope 220 , a first input shaft 230 , and a first swing arm 240 . The first disc-shaped bracket 210 is fixed to the rotating platform 100 . The bottom of the inner cylinder 110 has a winding end on the outer circumference of the first disc-shaped bracket 210. The first traction rope 220 is wound around the winding end of the first disc-shaped bracket 210, the first input shaft 230 and the first traction rope. The first input shaft 230 is further connected to a first worm gear reducer. The first input shaft 230 drives the first traction rope 220 to slide along the winding end of the first disk holder 210 by the first worm gear reducer. The first end of the first swing arm 240 is connected to the first traction rope 220, the second end of the first swing arm 240 is connected to the outer cylinder 120 of the rotating platform 100, and the first traction rope 220 drives the first swing arm 240 to rotate. The first swing arm 240 The outer cylinder 120 is further driven to rotate on the inner cylinder 110.

In the first swing mechanism 200, a plurality of pulleys are disposed on the winding end of the winding end of the first disc-shaped bracket 210, and the arrangement of the pulleys facilitates smooth sliding of the traction rope. The outer peripheral wall of the pulley is provided with a latching portion, and the latching portion is specifically a groove. The first traction rope is located in the recess, and the recess is used for limiting the first traction cord 220, thereby further ensuring the first traction. The cord 220 can slide smoothly on the first disc-shaped bracket 210 without occurrence of off-line escape.

Specifically, the first end of the first swing arm 240 is provided with a first connecting member, and the first connecting member is fixedly connected to the first pulling rope 220, and the first connecting member is driven by the first pulling rope 220 in the first disc shape. The winding end of the bracket 210 slides. The connecting portion of the first traction rope 220 connected to the first connecting member has a first opening, and the two ends of the first pulling rope 220 at the first opening are respectively fixed at both ends of the first connecting member. As shown, the connecting member is provided with a pair of closed annular members, and the two ends of the first pulling rope 220 at the first opening can be respectively attached to the pair of closed annular members.

Specifically, the connecting portion of the first traction rope 220 connected to the first input shaft 230 has a second opening, and the first end of the first traction rope 220 at the second opening is wound in the first direction on the first input shaft 230. a segment, the second end of which is wound in the second direction in the second direction of the first input shaft 230, and the first direction is opposite to the second direction, when the first input shaft 230 is at the second opening of the first traction string 220 When the first end of the line is laid, the other end is taken up.

Specifically, the winding end of the first disc-shaped bracket 210 has a circular arc shape, and the central angle thereof can be set to 330°. At this time, the first traction rope 220 can drive the first swing arm 240 at 0-330°. of Angle adjustment within the range. The distance between each point on the winding end of the first disc-shaped bracket 210 and the outer cylinder 120 is kept constant, and the length of the first swing arm 240 is fixed. The first disc-shaped bracket 210 is a hollow disc, so that the weight of the bracket can be reduced, and the manufacturing cost can be saved.

Specifically, the first swing mechanism 200 further includes a first tensioning mechanism (not shown), and the first tensioning mechanism is coupled to the first traction rope 220 for tensioning during sliding of the first traction rope 220. The first traction rope 220.

As shown in FIG. 13, the bracket 300 includes a beam 310 and a main frame 320. The beam 310 is fixedly disposed at the top of the outer cylinder 120, and the main frame 320 is rotatably coupled to the beam 310. Specifically, the main frame includes a frame body and a plurality of connecting members, the frame body is used for mounting the solar panel A, the connecting member is fixedly connected to the frame body, and the connecting member is sleeved on the beam, and the connecting member is used to drive the frame body around The beam rotates. In order to ensure the structural stability of the bracket 300, the number of the connecting members in the main frame 320 is three, which are respectively disposed at both ends and the middle portion of the beam 310. The main frame as a whole runs with the first slewing platform at the first degree of freedom, and the frame in the main frame is operated at the second degree of freedom under the action of the second slewing platform, thereby realizing the operation of the solar panel A in two degrees of freedom. .

As shown in FIG. 9 , the second swing mechanism 400 includes a second disc bracket 410 , a second traction cord 420 , a second input shaft 430 , and a second swing arm 440 . The second disc bracket 410 is fixed on the beam 310 . The outer circumference of the two disc-shaped brackets 410 has a winding end, the second traction rope 420 is wound around the winding end of the second disc-shaped bracket 410, and the second input shaft 430 is connected to the second traction rope 420. The second input shaft 430 is connected. The second traction rope 420 is slid along the winding end of the second disc bracket 410, the first end of the second swing arm 440 is connected to the second traction rope 420, and the second end thereof is connected to the main frame 320, The second traction rope 420 drives the second swing arm 440 to rotate, and the second swing arm 440 further drives the main frame 320 to rotate around the beam 310.

As shown in conjunction with FIGS. 10, 11, and 12, the second input shaft includes a first sub-input shaft 431 and a second sub-input shaft that are vertically connected, and the first sub-input shaft 431 and the second sub-input shaft are decelerated by the second worm gear. The first sub-input shaft 431 is connected to the second sub-input shaft after passing through the inner cylinder and the outer cylinder along the central axis of the rotating platform, and the second sub-input shaft is connected to the second traction rope. The first sub input shaft drives the second sub input shaft to rotate by the second worm gear reducer, and the second sub input shaft drives the second traction rope to slide.

The second input shaft 430 further includes a third sub-input shaft 432, the third sub-input shaft 432 is vertically connected to the first sub-input shaft 431, and a diverter is disposed between the first sub-input shaft 431 and the third sub-input shaft 432. 433. The first sub-input shaft 431 is connected to the second traction rope 420 after passing through the inner cylinder 110 and the outer cylinder 120 along the central axis of the rotating platform 100. The third sub-input shaft 432 is located at the bottom of the rotating platform 100, and is away from the bottom. Extending outwardly from the direction of the rotating platform 100. The third sub input shaft is connected to a driver disposed outside the rotating platform, so that the driver of the second slewing mechanism can be disposed away from the second slewing mechanism, and the conventional method is to set the driver in the vicinity of the slewing mechanism, and The driving mechanism needs to rotate together under the action of another rotating mechanism. The conventional method consumes a large amount of energy and is unstable in operation, and the structure in this embodiment can effectively solve these problems.

In the second swing mechanism 400, a plurality of pulleys are disposed on the winding end of the winding end of the second disk-shaped bracket 410. A latching portion is provided on the outer peripheral wall of the pulley. The latching portion is specifically a groove, and the latching portion is used for limiting the second traction cord 420, so that the second traction cord 420 can smoothly slide on the second disc-shaped bracket 410.

Specifically, the first end of the second swing arm 440 is provided with a second connecting member, the second connecting member is fixedly connected with the second pulling rope 420, and the second connecting member is driven by the second pulling rope 420 in the second disc shape. The winding end of the bracket 410 slides. The connecting portion of the second pulling rope 420 connected to the second connecting member has a first opening, and the two ends of the second pulling rope 420 at the first opening are respectively fixed at both ends of the second connecting member. As shown, the second connecting member is provided with a pair of closed annular members, and the two ends of the second pulling rope 420 at the first opening can be respectively attached to the pair of closed annular members.

Specifically, the connecting portion of the second traction rope 420 and the second input shaft 430 has a second opening, and the first end of the second traction rope 420 is wound in the first direction in the first direction on the second input shaft 430. a segment, the second end of which is wound in the second direction in the second direction of the second input shaft 430, and the first direction is opposite to the second direction, when the second input shaft 430 is opposite the second traction line 420 at the second opening When the first end of the line is laid, the other end is taken up.

Specifically, the winding end of the second disc-shaped bracket 410 has an arc-shaped structure, and the central angle thereof can be set to 90°. At this time, the second traction rope 420 can drive the second swing arm 440 in the range of 0-90°. Inside The angle adjustment is performed, the distance between the points on the winding end of the second disc-shaped bracket 410 and the beam 310 is constant, and the length of the second swing arm 440 is fixed. The second disc-shaped bracket 410 is a hollow disc, so that the weight of the bracket can be reduced, and the manufacturing cost can be saved.

Specifically, the second swing mechanism 400 further includes a second tensioning mechanism coupled to the second traction rope 420 for tensioning the second traction rope 420 during the sliding of the second traction rope 420.

Of course, in other specific embodiments, the outer cylinder in the rotating platform can be directly rotatably sleeved in the inner cylinder without providing a thrust bearing, or can be connected by other rotating connecting members; the disc shape in the two rotating mechanisms The bracket can also be set as a solid disc; the traction rope can also be wound on the disc-shaped bracket by a plurality of turns; the outer shape of the disc-shaped bracket can also be set to other shapes; the first input shaft can also be composed of two sub-input shafts, and then the traction The two ends of the rope are respectively arranged on the two sub-input shafts; the connecting section of the traction rope and the input shaft can also be set as a continuous structure; the traction rope can be selected as a wire rope, a nylon rope, a belt, a timing belt or other kinds of ropes according to requirements. The connecting structure between the traction rope and the swing arm can also be set as a continuous structure; the connection manner of the first input shaft and the second traction rope in the second input shaft can be according to the specific connection between the second swing mechanism and the rotating platform The mode can be selected according to actual needs; in addition, the specific structure of the two slewing mechanisms in the dual-axis tracking device of the present invention can be adjusted according to needs. Not repeat them here.

It should be noted that the structural design principles of the first slewing mechanism and the second slewing mechanism are similar. Therefore, the structural adjustment of one of the slewing mechanisms can be applied to another slewing mechanism. Of course, the specific structure of the two slewing mechanisms can also be Different, for example, one slewing mechanism includes a pulley, and the other does not include; the traction rope in one slewing mechanism is a continuous structure as a whole, and the other is a disconnected structure at the connection with the input shaft and/or the swing arm; In a slewing mechanism, the length of the swing arm is fixed and the other length is adjustable. Those skilled in the art can deduce various embodiments from the above disclosure, which will not be enumerated here.

Illustratively, with reference to Figures 1 to 13, the application of the specific embodiment of the dual-axis tracking device of the present invention is as follows:

1. The first input shaft 230 of the first swing mechanism 200 drives the first traction rope 220 to slide on a horizontal plane;

2. The first traction rope 220 drives the first swing arm 240 to rotate on a horizontal plane;

3. The first swing arm 240 drives the outer cylinder 120 to rotate around the inner cylinder 110 on a horizontal plane;

4. The outer cylinder 120 drives the bracket 300 and the second swing mechanism 400 to rotate on a horizontal plane, thereby realizing the angle adjustment of the solar panel A fixed on the bracket 300 on a horizontal plane;

The second input shaft 430 of the second swing mechanism 400 drives the second traction rope 420 to slide on the vertical surface;

6. The second traction rope 420 drives the second swing arm 440 to rotate on a vertical plane;

7. The second swing arm 440 drives the main frame 320 to rotate on the vertical plane about the beam 310, thereby achieving angular adjustment of the solar panel A fixed on the bracket 300 on the vertical plane.

The dual-axis tracking device of the invention has simple structure and reliable operation, can realize the operation of the solar light panel in two degrees of freedom, and has low cost and is easy to popularize.

The above description is only a preferred embodiment of the present invention, and it should be noted that those skilled in the art can also make several improvements and retouchings without departing from the principles of the present invention. It should be considered as the scope of protection of the present invention.

Claims

A dual axis tracking device, comprising:

a rotating platform comprising an inner cylinder and an outer cylinder, wherein the outer cylinder is rotatably sleeved on the inner cylinder;

a first slewing mechanism, comprising: a first disc-shaped bracket, a first traction rope, a first input shaft and a first swing arm, wherein the first disc-shaped bracket is fixed at a bottom of the inner cylinder of the rotating platform, the first The outer circumference of the disc-shaped bracket has a winding end, the first traction rope is wound around the winding end of the first disc-shaped bracket, and the first input shaft is connected with the first traction rope, the first An input shaft is configured to drive the first traction rope to slide along a winding end of the first disc-shaped bracket, a first end of the first swing arm is connected to the first traction rope, and a second end thereof Connecting with the outer cylinder of the rotating platform, the first traction rope drives the first swing arm to rotate, and the first swing arm further drives the outer cylinder to rotate on the inner cylinder;

a bracket comprising a beam and a main frame fixedly disposed on a top of the outer cylinder of the rotating platform, the main frame being rotatably coupled to the beam;

a second slewing mechanism comprising a second disc-shaped bracket, a second traction rope, a second input shaft and a second swing arm, wherein the second disc-shaped bracket is fixed on the cross beam, and the outer circumference of the second disc-shaped bracket Having a winding end, the second traction rope is wound around a winding end of the second disc-shaped bracket, the second input shaft is coupled to the second traction rope, and the second input shaft is for Driving the second traction rope to slide along the winding end of the second disc-shaped bracket, the first end of the second swing arm is connected with the second traction rope, and the second end thereof is opposite to the main frame Connecting, the second traction rope drives the second swing arm to rotate, and the second swing arm further drives the main frame to rotate around the beam.
The dual axis tracking device of claim 1 wherein:

The main frame includes a frame body and a plurality of connecting members, the frame body is used for mounting a solar light panel, the connecting member is fixedly connected to the frame body, and the connecting member is sleeved on the beam. The connecting member is used to drive the frame to rotate around the beam.
The dual axis tracking device of claim 1 wherein:

The first input shaft is coupled to a first worm gear reducer, and the first input shaft drives the first traction rope to slide through the first worm gear reducer;

and / or;

The second input shaft includes a first sub input shaft and a second sub input shaft that are vertically connected, and the first sub input shaft and the second sub input shaft are connected by a second worm gear reducer, A sub-input shaft is coupled to the second sub-input shaft after passing through the inner cylinder and the outer cylinder along a central axis of the rotating platform, and the second sub-input shaft is coupled to the second traction rope.
The dual axis tracking device of claim 1 wherein:

The rotating platform further includes a pair of limiting bearings, the limiting bearing is located between the outer cylinder and the inner cylinder, the limiting bearing is sleeved on the inner cylinder, and a pair of the limiting bearings There is a gap between them.
The dual axis tracking device of claim 1 wherein:

In the first slewing mechanism, a winding portion for limiting the first traction rope is disposed on the winding end of the first disc-shaped bracket;

In the second swinging mechanism, the winding end of the second disk-shaped bracket is provided with a latching portion for limiting the second pulling rope.
A two-axis tracking device according to claim 5, wherein:

The latching portion is a groove;

and / or;

A plurality of pulleys are disposed on the winding end of the first disc-shaped bracket and the winding end of the second disc-shaped bracket, and the latching portion is disposed on an outer peripheral wall of the pulley.
The dual axis tracking device of claim 1 wherein:

The first end of the first swing arm is provided with a first connecting member, the first connecting member is fixedly connected with the first pulling rope, and the first connecting member is driven by the first pulling rope The first Slide on the winding end of the disc holder.
The dual axis tracking device of claim 7 wherein:

The connecting portion of the first traction rope connected to the first connecting member is a continuous structure, and the continuous structure is disposed on the first connecting member;

or;

a connecting portion of the first connecting rope connected to the first connecting member has a first opening, and two ends of the first pulling rope at the first opening are respectively fixed at two ends of the first connecting member .
The dual axis tracking device of claim 1 wherein:

a connecting portion of the first traction rope connected to the first input shaft has a second opening, and the first end and the second end of the traction rope at the second opening are respectively wound around the first input shaft And the first input shaft is used to take off the second end of the first traction rope at the first end of the second opening.
The dual axis tracking device of claim 1 wherein:

The connecting portion of the first traction rope connected to the first input shaft is a continuous structure, and the continuous structure is tensioned by the first input shaft.