Photovoltaic tracking driving mechanism

Abstract

The utility model provides a photovoltaic tracking driving mechanism, and belongs to the technical field of photovoltaic supports. In order to solve the problems that a driving mechanism of a photovoltaic tracking support is inconvenient to install and high in cost, the utility model provides a photovoltaic tracking driving mechanism which comprises a driving assembly and a transmission assembly. The driving assembly is provided with a rotating output end, and the rotating output end is in transmission connection with a transmission assembly; the transmission assembly is located on the side edge of the driving assembly and extends upwards, the transmission assembly comprises a plurality of transmission parts which are sequentially and rotationally connected, the first transmission part in the multiple transmission parts is fixedly connected with the rotating output end of the driving assembly, and the last transmission part is used for being fixedly connected with a main shaft. The transmission assembly can drive the main shaft and the rotating output end of the driving assembly to rotate synchronously. The mounting structure is convenient to mount, and the cost is reduced.

Description

Technical Field

[0001] The present application relates to the technical field of photovoltaic brackets, and in particular to a photovoltaic tracking drive mechanism. Background Art

[0002] A photovoltaic tracking bracket is a bracket used to install photovoltaic modules and can realize the east-west rotation of the photovoltaic modules. It usually includes a main shaft and a module beam arranged on the main shaft. The photovoltaic modules are installed on the module beam, and the photovoltaic tracking bracket is also provided with a driving mechanism. The driving mechanism drives the main shaft to rotate east-west, thereby realizing the east-west rotation of the photovoltaic modules to track the trajectory of the sun and improve the efficiency of solar energy utilization.

[0003] The driving mechanism of the photovoltaic tracking bracket usually uses a motor and a reducer, and the output end of the reducer is directly fixed to the main shaft, for example, the slewing bearing of the rotary reducer is fixedly connected to the main shaft, thereby transmitting the rotational driving force. This method has high performance requirements for the reducer, resulting in high costs. At the same time, in order to ensure that the output end of the reducer can be directly connected to the main shaft, the installation accuracy of each part of the photovoltaic tracking bracket is required to be high, which further increases the cost. Utility Model Content

[0004] The purpose of this application is to solve the problem in the prior art that the drive mechanism of the photovoltaic tracking bracket is inconvenient to install and has a high cost. Therefore, this application provides a photovoltaic tracking drive mechanism, which connects the main shaft and the drive assembly through a transmission assembly, reduces the performance requirements and installation accuracy requirements for the drive assembly, facilitates installation, and reduces costs.

[0005] The embodiment of the present application provides a photovoltaic tracking drive mechanism, which is used for driving connection with the main shaft of the photovoltaic tracking bracket, and includes a driving assembly and a transmission assembly;

[0006] The driving assembly has a rotation output end, and the rotation output end is transmission-connected to the transmission assembly;

[0007] The transmission assembly is located on the side of the driving assembly and extends upward. The transmission assembly includes a plurality of transmission members that are rotatably connected in sequence, and the first of the plurality of transmission members is fixedly connected to the rotating output end of the driving assembly, and the last transmission member is used to be fixedly connected to the main shaft, so that the transmission assembly can drive the main shaft and the rotating output end of the driving assembly to rotate synchronously.

[0008] By adopting the above technical scheme, the drive assembly and the main shaft are connected through the transmission assembly, thereby reducing the performance requirements and installation accuracy requirements for the drive assembly, thereby reducing the cost; at the same time, since the transmission assembly is far away from the photovoltaic assembly on the bracket, it is not only easy to observe, but also the movement state of the main shaft can be judged by observing the movement state of the transmission assembly, avoiding judging the movement state of the main shaft by the movement state of the photovoltaic assembly, thereby improving the accuracy and reliability of judging the movement state of the main shaft, thereby facilitating maintenance, reducing the obstruction of the photovoltaic assembly, and avoiding the situation where the photovoltaic assembly cannot be installed above the drive assembly, resulting in low site utilization.

[0009] In some embodiments, the multiple transmission parts include a first swing arm, a connecting rod, and a second swing arm. The first swing arm is fixedly connected to the rotating output end of the driving assembly, and the second swing arm is fixedly connected to the main shaft. The connecting rod is hinged between the first swing arm and the second swing arm, so that the first swing arm rotates synchronously with the driving assembly and drives the second swing arm to rotate synchronously through the connecting rod. The rotation of the second swing arm drives the main shaft to rotate around its axis.

[0010] By adopting the above technical solution, transmission in the vertical direction is realized, the transmission efficiency is improved, and the installation is convenient.

[0011] In some embodiments, the transmission assembly further includes a connecting shaft, an end portion of the connecting shaft is used for detachable connection with the main shaft, and the second swing arm is fixedly connected to the main shaft via the connecting shaft.

[0012] By adopting the above technical solution, the end connection is achieved by connecting the shaft and the main shaft, which is easy to install and improves the integrity and structural stability of the drive mechanism when it is in an independent state, avoiding damage caused by large shaking of the transmission component during transportation.

[0013] In some embodiments, a support member is further included, wherein the support member includes a support column disposed on the side of the driving assembly, and a bearing seat disposed on the top of the support column, wherein a bearing is disposed in the bearing seat;

[0014] The bearing is sleeved on the circumference of the connecting shaft, and the connecting shaft is used to be sleeved with the main shaft and connected through a fastener, and the sleeve connection between the connecting shaft and the main shaft is arranged on the outer side of the bearing.

[0015] By adopting the above technical solution, the connection stability between the driving mechanism and the main shaft is improved by the support member, and the connection between the connecting shaft and the main shaft is arranged on the outside of the bearing, which is convenient for installation and maintenance.

[0016] In some embodiments, the second swing arm has a sleeve ring and is sleeved with the connecting shaft through the sleeve ring.

[0017] In some embodiments, the end of the second swing arm away from the connecting rod has at least two connecting parts, and the at least two connecting parts are arranged at intervals, and the connecting parts are connected to the connecting shaft.

[0018] By adopting the above technical solution, the second swing arm is connected to the connecting shaft through at least two spaced-apart connecting parts, which improves the stability of the connection between the second swing arm and the connecting shaft, and improves the stability of the second swing arm driving the main shaft to rotate.

[0019] In some embodiments, the first swing arm is disposed perpendicularly to the rotation axis of the rotation output end of the driving assembly, and the second swing arm is disposed perpendicularly to the axis of the connecting shaft.

[0020] In some embodiments, the first swing arm and the second swing arm are symmetrically arranged at two ends of the connecting rod.

[0021] In some embodiments, the end of the first swing arm facing away from the driving assembly is a clamping end;

[0022] The end of the connecting rod is in a ball head shape, and the end of the connecting rod is connected to the clamping end.

[0023] By adopting the above technical solution, the first swing arm and the second swing arm can have a certain installation error. At the same time, it is particularly suitable for the situation where the main shaft is not horizontal, that is, the second swing arm fixed on the main shaft is inclined at a certain angle relative to the first swing arm, so that the first swing arm, the connecting rod and the second swing arm can still be connected and transmitted, thereby improving the convenience of installation.

[0024] In some embodiments, the connecting rod includes a rod portion and a ball head rod end joint bearing detachably disposed at an end thereof, and the connecting rod is connected to the clamping end via the ball head rod end joint bearing.

[0025] In some embodiments, the driving assembly includes a motor and a reducer drivingly connected to the motor, and the reducer is self-locking.

[0026] Other features and corresponding beneficial effects of the present application are described in the latter part of the specification, and it should be understood that at least some of the beneficial effects become obvious from the records in the specification of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 A schematic diagram of the split structure of the photovoltaic tracking drive mechanism and the main shaft according to an embodiment of the present application;

[0028] Figure 2 A schematic diagram of the structure of the mounting column of the photovoltaic tracking drive mechanism of an embodiment of the present application;

[0029] Figure 3This is a schematic diagram of the assembly structure of the connecting shaft and the second swing arm of the photovoltaic tracking drive mechanism of an embodiment of the present application;

[0030] Figure 4 A partial structural schematic diagram of a supporting member of a photovoltaic tracking drive mechanism according to an embodiment of the present application;

[0031] Figure 5 Schematic diagram of the connecting rod structure of the photovoltaic tracking drive mechanism according to an embodiment of the present application.

[0032] Description of reference numerals:

[0033] 1. Spindle; 2. Mounting column; 21. Accommodating chamber;

[0034] 100, driving assembly; 110, motor; 120, reducer;

[0035] 200, transmission assembly; 210, first swing arm; 211, clamping end; 220, connecting rod; 221, rod portion; 222, ball head rod end joint bearing; 230, second swing arm; 231, sleeve ring; 232, connecting portion; 240, connecting shaft;

[0036] 300, support member; 310, support column; 320, bearing seat; 330, bearing. DETAILED DESCRIPTION

[0037] The following specific embodiments illustrate the implementation of the present application, and those skilled in the art can easily understand other advantages and effects of the present application from the contents disclosed in this specification. Although the description of the present application will be introduced in conjunction with the preferred embodiment, this does not mean that the features of this application are limited to the implementation. On the contrary, the purpose of introducing the application in conjunction with the implementation is to cover other options or modifications that may be extended based on the claims of the present application. In order to provide a deep understanding of the present application, the following description will include many specific details. The present application can also be implemented without using these details. In addition, in order to avoid confusion or blurring the focus of the present application, some specific details will be omitted in the description. It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict.

[0038] It should be noted that in this specification, similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further defined and explained in the subsequent drawings.

[0039] The technical solution of the present application will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the present application, rather than all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present application.

[0040] In the description of the present application, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, which are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, features defined as "first", "second", etc. may explicitly or implicitly include one or more of the features. In the description created by the present application, unless otherwise specified, "multiple" means two or more.

[0041] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0042] In order to make the objectives, technical solutions and advantages of the present application clearer, the implementation methods of the present application will be further described in detail below in conjunction with the accompanying drawings.

[0043] The photovoltaic support usually includes a main shaft 1 and a support column. The main shaft 1 is supported by the support column to form the main structure of the support, and a component beam is usually installed above the main shaft 1, and the photovoltaic component is installed on the component beam. Preferably, a beam pad is installed between the main shaft 1 and the component beam, and a beam bottom pad is installed below the main shaft 1 to improve the installation stability of both.

[0044] In order to enable the photovoltaic components to track the sun and improve energy utilization, a driving mechanism may be further provided on the photovoltaic support, which drives the main shaft 1 to rotate and then drives the photovoltaic components to rotate to achieve tracking.

[0045] See also Figure 1 , Figure 1It is a schematic diagram of the split structure of the photovoltaic tracking drive mechanism and the main shaft 1 according to an embodiment of the present application.

[0046] The embodiment of the present application provides a photovoltaic tracking drive mechanism, which is used to be connected to the main shaft 1 of the photovoltaic tracking bracket to achieve tracking.

[0047] The driving mechanism includes a driving assembly 100 and a transmission assembly 200 .

[0048] The driving assembly 100 may be arranged on a supporting column, or an independent mounting column 2 may be provided separately to achieve the installation and fixation of the driving assembly 100.

[0049] The driving assembly 100 has a rotating output end, which is transmission-connected to the transmission assembly 200 and is transmission-connected to the main shaft 1 through the transmission assembly 200, so that the transmission assembly 200 rotates under the rotation of the driving assembly 100 and drives the main shaft 1 to rotate synchronously around its axis.

[0050] In one embodiment, the transmission assembly 200 is located at the side of the driving assembly 100 and extends upward, so as to transmit the rotational driving force upward to the main shaft 1 located above the driving assembly 100 .

[0051] In one embodiment, the transmission assembly 200 includes a plurality of transmission members that are rotatably connected in sequence, and the first transmission member among the plurality of transmission members is fixedly connected to the rotation output end of the driving assembly 100, and the last transmission member is fixedly connected to the main shaft 1, so that the transmission assembly 200 can drive the main shaft 1 and the rotation output end of the driving assembly 100 to rotate synchronously.

[0052] In this manner, the drive assembly 100 and the main shaft 1 are connected via the transmission assembly 200, thereby reducing the performance requirements and installation accuracy requirements for the drive assembly 100, thereby reducing costs; at the same time, since the transmission assembly 200 is far away from the photovoltaic assembly on the bracket, it is easy to observe, and the movement state of the main shaft 1 can be judged by observing the movement state of the transmission assembly 200, avoiding judging the movement state of the main shaft 1 by the movement state of the photovoltaic assembly, thereby improving the accuracy and reliability of judging the movement state of the main shaft 1, thereby facilitating maintenance.

[0053] In addition, the photovoltaic modules commonly used at present are double-sided photovoltaic modules, that is, the front and back sides of the photovoltaic modules can use solar energy. The conventional direct connection method of the reducer will cause the back of the photovoltaic module to be shielded by a large area due to the large size of the reducer, thereby affecting the utilization rate of the photovoltaic module; or, when installing the photovoltaic module, avoid the position of the reducer. Although it does not affect the solar energy utilization rate of the photovoltaic module, it will result in low site utilization.

[0054] In the present application, the driving assembly 100 and the transmission assembly 200 are away from the photovoltaic assembly on the bracket, which can reduce the shielding of the photovoltaic assembly, and the photovoltaic assembly can be installed above the driving assembly 100, thereby taking into account both the photovoltaic assembly and the site utilization.

[0055] Usually, a single bracket is only equipped with one driving mechanism to realize the rotation tracking of the main shaft 1; however, it is understandable that multiple driving mechanisms can also be installed to improve the rotation stability of the main shaft 1.

[0056] In one embodiment, the driving assembly 100 includes a motor 110 and a reducer 120 connected to the motor 110 , thereby preventing the photovoltaic tracking bracket from rotating too fast and improving its operation stability. At this time, the transmission assembly 200 is connected to the rotation output end of the reducer 120 .

[0057] Preferably, the reducer 120 is self-locking.

[0058] In one embodiment, the plurality of transmission members include a first swing arm 210 , a connecting rod 220 , and a second swing arm 230 .

[0059] The first swing arm 210 is fixedly connected to the rotating output end of the driving component 100, the second swing arm 230 is fixedly connected to the main shaft 1, and a connecting rod 220 is hinged between the first swing arm 210 and the second swing arm 230, so that the first swing arm 210 rotates synchronously with the driving component 100, and drives the second swing arm 230 to rotate synchronously through the connecting rod 220, and the rotation of the second swing arm 230 drives the main shaft 1 to rotate around its axis. At the same time, the first swing arm 210, the second swing arm 230 and the connecting rod 220 realize transmission in the vertical direction, which improves the transmission efficiency and is easy to install.

[0060] In one embodiment, the first swing arm 210 and the second swing arm 230 are symmetrically disposed at both ends of the connecting rod 220 to further improve transmission stability and reliability.

[0061] See also Figure 2 , Figure 2 It is a schematic diagram of the structure of the mounting column 2 of the photovoltaic tracking drive mechanism according to an embodiment of the present application.

[0062] In one embodiment, the photovoltaic tracking drive mechanism is installed by installing a column 2, and a semi-open accommodating cavity 21 is provided on the top of the column 2, and the drive assembly 100 is installed in the accommodating cavity 21, so that the size of the transmission assembly 200, especially the length of the connecting rod 220, is effectively controlled by the height of the column 2, thereby improving the transmission stability and reliability, and improving the rotation stability and reliability of the main shaft 1. In addition, the installation column 2 is provided separately, which can improve the installation flexibility of the drive mechanism and facilitate installation.

[0063] See also Figure 2 and Figure 3 ,in, Figure 3 Schematic diagram of the assembly structure of the connecting shaft 240 and the second swing arm 230 of the photovoltaic tracking drive mechanism according to an embodiment of the present application.

[0064] In one embodiment, the transmission assembly 200 also includes a connecting shaft 240, the end of which is used to be detachably connected to the main shaft 1, and the second swing arm 230 is fixedly connected to the main shaft 1 through the connecting shaft 240, which is easy to install and improves the integrity and structural stability of the driving mechanism when it is in an independent state, thereby avoiding damage to the transmission assembly 200 caused by large shaking during transportation.

[0065] In one embodiment, the second swing arm 230 has a sleeve ring 231, and is sleeved with the connecting shaft 240 through the sleeve ring 231, thereby improving the connection stability between the second swing arm 230 and the connecting shaft 240, thereby improving the transmission stability and reliability. Further, the sleeve ring 231 and the connecting shaft 240 are welded as one.

[0066] In one embodiment, the second swing arm 230 has at least two connecting portions 232 at one end away from the connecting rod 220, and the at least two connecting portions 232 are arranged at intervals, and the connecting portions 232 are connected to the connecting shaft 240, thereby improving the stability of the connection between the second swing arm 230 and the connecting shaft 240, and improving the stability of the second swing arm 230 driving the connecting shaft 240 to rotate.

[0067] Usually, two connection parts 232 are sufficient.

[0068] It is understandable that the first swing arm 210 can also adopt a structure similar to that of the second swing arm 230, that is, the end of the first swing arm 210 away from the connecting rod 220 has two connecting parts 232, and the two connecting parts 232 are arranged at intervals and clamped on both sides of the rotating output end of the driving component 100, thereby improving the connection stability between the first swing arm 210 and the driving component 100, and improving the rotation stability of the first swing arm 210 with the driving component 100.

[0069] At this time, the driving component 100 can be a dual-output driving component 100, and the two connecting parts 232 of the first swing arm 210 are respectively connected to an output end; the driving component 100 can also be a single-output reducer 120, by setting a rotating output shaft at its rotating output end, and the two connecting parts 232 of the first swing arm 210 are connected to the rotating output shaft at intervals.

[0070] When the second swing arm 230 has at least two connection portions 232 , each connection portion 232 may be provided with a sleeve ring 231 to be sleeved with the connection shaft 240 .

[0071] In one embodiment, the first swing arm 210 is disposed perpendicularly to the rotation axis of the rotation output end of the driving assembly 100, and the second swing arm 230 is disposed perpendicularly to the axis of the connecting shaft 240, thereby improving transmission stability and reliability.

[0072] See also Figure 2-4 ,in, Figure 4 It is a partial structural schematic diagram of the support member 300 of the photovoltaic tracking drive mechanism according to an embodiment of the present application.

[0073] In one embodiment, the photovoltaic tracking drive mechanism further includes a support member 300 , which includes a support column 310 disposed on the side of the drive assembly 100 , and a bearing seat 320 disposed on the top of the support column 310 , wherein a bearing 330 is disposed in the bearing seat 320 .

[0074] The bearing 330 is sleeved on the circumference of the connecting shaft 240 .

[0075] The connecting shaft 240 is used to be sleeved with the main shaft 1 and connected by a fastener, such as a bolt. In addition, the sleeve connection between the connecting shaft 240 and the main shaft 1 is arranged outside the bearing 330.

[0076] This method improves the connection stability between the driving mechanism and the main shaft 1 through the support member 300, and is arranged on the outside of the bearing 330 through the sleeve connection between the connecting shaft 240 and the main shaft 1, which is easy to install and maintain.

[0077] See also Figure 1 , Figure 3 and Figure 5 ,in, Figure 5 Schematic diagram of the structure of the connecting rod 220 of the photovoltaic tracking drive mechanism according to an embodiment of the present application.

[0078] In one embodiment, the end of the first swing arm 210 facing away from the driving assembly 100 is a clamping end 211 .

[0079] The end of the connecting rod 220 is in the shape of a ball head, and the end of the connecting rod 220 is connected to the clamping end 211, so that the first swing arm 210 and the second swing arm 230 can have a certain installation error. At the same time, it is also particularly suitable for the situation where the main shaft 1 is not horizontal. For example, the bracket is installed with a slope, and the second swing arm 230 fixed on the main shaft 1 is inclined at a certain angle relative to the first swing arm 210, so that the first swing arm 210, the connecting rod 220 and the second swing arm 230 can still be connected and transmitted, thereby improving the convenience of installation.

[0080] It can be understood that the second swing arm 230 can also adopt a structure similar to the first swing arm 210, that is, the end away from the main shaft 1 is the clamping end 211, and the corresponding end of the connecting rod 220 is also ball-shaped, and the end of the connecting rod 220 is connected to the clamping end 211, thereby further improving the tolerance of installation errors and slopes.

[0081] In one embodiment, the connecting rod 220 includes a rod portion 221 and a ball head rod end joint bearing 222 detachably connected to its end, and the connecting rod 220 is connected to the clamping end 211 through the ball head rod end joint bearing 222, so as to achieve tilted installation of the transmission assembly 200, and the connecting rod 220 can be maintained by replacing the ball head rod end joint bearing 222, thereby effectively controlling the maintenance cost.

[0082] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit it. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A photovoltaic tracking drive mechanism, used for driving connection with the main shaft of a photovoltaic tracking bracket, characterized in that: Including drive components and transmission components; The driving assembly has a rotation output end, and the rotation output end is transmission-connected to the transmission assembly; The transmission assembly is located on the side of the driving assembly and extends upward. The transmission assembly includes a plurality of transmission members that are rotatably connected in sequence, and the first of the plurality of transmission members is fixedly connected to the rotating output end of the driving assembly, and the last transmission member is used to be fixedly connected to the main shaft, so that the transmission assembly can drive the main shaft and the rotating output end of the driving assembly to rotate synchronously.

2. The photovoltaic tracking drive mechanism according to claim 1, characterized in that: The multiple transmission parts include a first swing arm, a connecting rod and a second swing arm. The first swing arm is fixedly connected to the rotating output end of the driving component, and the second swing arm is fixedly connected to the main shaft. The connecting rod is hinged between the first swing arm and the second swing arm, so that the first swing arm rotates synchronously with the driving component and drives the second swing arm to rotate synchronously through the connecting rod. The rotation of the second swing arm drives the main shaft to rotate around its axis.

3. The photovoltaic tracking drive mechanism according to claim 2, characterized in that: The transmission assembly also includes a connecting shaft, an end of which is used to be detachably connected to the main shaft, and the second swing arm is fixedly connected to the main shaft through the connecting shaft.

4. The photovoltaic tracking drive mechanism according to claim 3, characterized in that: It also includes a support member, the support member includes a support column arranged on the side of the driving assembly, and a bearing seat arranged on the top of the support column, and a bearing is arranged in the bearing seat; The bearing is sleeved on the circumference of the connecting shaft, and the connecting shaft is used to be sleeved with the main shaft and connected through a fastener, and the sleeve connection between the connecting shaft and the main shaft is arranged on the outer side of the bearing.

5. The photovoltaic tracking drive mechanism according to claim 3, characterized in that: The second swing arm has a sleeve ring and is sleeve-connected with the connecting shaft through the sleeve ring.

6. The photovoltaic tracking drive mechanism according to claim 3, characterized in that: The end of the second swing arm away from the connecting rod has at least two connecting parts, and the at least two connecting parts are arranged at intervals, and the connecting parts are connected to the connecting shaft.

7. The photovoltaic tracking drive mechanism according to claim 3, characterized in that: The first swing arm is disposed perpendicularly to the rotation axis of the rotation output end of the driving assembly, and the second swing arm is disposed perpendicularly to the axis of the connecting shaft.

8. The photovoltaic tracking drive mechanism according to claim 2, characterized in that: The first swing arm and the second swing arm are symmetrically arranged at two ends of the connecting rod.

9. The photovoltaic tracking drive mechanism according to claim 2, characterized in that: One end of the first swing arm away from the driving assembly is a clamping end; The end of the connecting rod is in a ball head shape, and the end of the connecting rod is connected to the clamping end.

10. The photovoltaic tracking drive mechanism according to claim 9, characterized in that: The connecting rod comprises a rod portion and a ball head rod end joint bearing detachably arranged at the end thereof, and the connecting rod is connected to the clamping end through the ball head rod end joint bearing.

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