Solar tracking trolley based on composite transmission

Abstract

The utility model discloses a solar tracking dolly based on composite transmission, comprising a dolly body and a dolly housing, the dolly housing is provided with a solar panel, when the dolly is under the condition of sufficient illumination, the solar panel converts light energy into electric energy and stores the electric energy in a capacitor bank; after being electrified, the trolley starts from the departure position determined by the positioning tail wing and runs according to a specified route, a motor is arranged in the trolley body, and a transmission structure is further installed in the trolley body. The transmission structure comprises a fixed shaft mounted on the lower surface of the vehicle body, a driven shaft mounted in the vehicle body, a one-way bearing mounted on the driven shaft, a gear transmission mechanism between a motor output shaft and the driven shaft, and a belt wheel transmission mechanism between the driven shaft and the fixed shaft; gear transmission, belt wheel transmission and cam transmission are combined together, the cam is directly driven by the first driven flange synchronizing wheel on the driven shaft, the left wheel is completely driven by means of inertia, the energy utilization rate of the trolley is further increased, and the continuous operation time of the trolley is further prolonged.

Description

Technical Field

[0001] This utility model relates to the field of solar-powered vehicle technology, and in particular to a solar-powered tracking vehicle based on composite transmission. Background Technology

[0002] The burning of traditional energy sources (coal, oil, and natural gas) results in massive greenhouse gas emissions, exacerbating global warming. Solar energy, as a clean energy source, produces almost no carbon emissions, making it a key means of addressing climate change.

[0003] The solar-powered tracking car is a typical combination of mechanical engineering and green energy. Its core technology lies in achieving low-cost, low-maintenance sustainable operation through the simplification of mechanical structure and the efficient use of solar energy.

[0004] Currently, most existing solar-powered tracking vehicles use a single transmission method, such as gear transmission or belt transmission. Their steering control systems mostly rely on servo motors for steering, Ackerman steering, or differential steering. These control methods all require additional energy supply, meaning that the transmission requires a separate motor for control, and the steering requires another separate motor for control. Each motor needs to obtain energy, which increases the cost and complexity of the solar-powered tracking vehicle, leading to a decrease in the utilization rate, efficiency, and duration of solar energy use, and affecting the vehicle's continuous operating time. Summary of the Invention

[0005] In view of the shortcomings of the prior art, the purpose of this utility model is to provide a solar-powered tracking car based on composite transmission, which aims to solve the problem that the high cost and complexity of the prior art leads to a reduction in the continuous operation time of the solar-powered tracking car.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A solar-powered tracking car based on a composite transmission includes a vehicle body with a solar panel on it. An energy storage mechanism is located inside the vehicle body and electrically connected to the solar panel. A motor is also located inside the vehicle body, and a transmission structure is installed within it. The transmission structure includes a fixed shaft mounted on the lower surface of the vehicle body, a driven shaft mounted inside the vehicle body, a one-way bearing mounted on the driven shaft, a gear transmission mechanism between the motor output shaft and the driven shaft, and a pulley transmission mechanism between the driven shaft and the fixed shaft. Wheels of the vehicle body are connected to both ends of the fixed shaft, and a cam is connected to the output end of the pulley transmission mechanism. A steering mechanism abuts against the cam and is connected to a steering wheel on the vehicle body.

[0008] Furthermore, the vehicle body includes a floor and wheels. The floor is equipped with a motor, a positioning wing, and a circuit fixing plate. The positioning wing, in conjunction with an angle gauge, determines the starting position. The energy storage mechanism is a capacitor bank located inside the vehicle body.

[0009] The solar-powered tracking car also includes a car shell that encapsulates the car body. A solar panel is installed on the top and connected to the base plate by multiple supporting carbon rods. The two ends of the supporting carbon rods are fixed by metal internally threaded cylindrical pins.

[0010] Furthermore, the shape of the cam is set according to the running trajectory of the vehicle body.

[0011] Furthermore, the gear transmission mechanism includes a driving gear mounted on the motor output shaft and a driven gear mounted on a one-way bearing of the driven shaft, wherein the driving gear meshes with the driven gear.

[0012] Furthermore, the pulley drive mechanism includes a first pulley drive mechanism on the left side of the vehicle body and a second pulley drive mechanism on the right side of the vehicle body. The first pulley drive mechanism includes a first driving synchronous pulley mounted on the left end of the driven shaft and a first driven flange synchronous pulley mounted on the left side of the fixed shaft. A first synchronous belt meshes with the first driving synchronous pulley and the first driven flange synchronous pulley. The second pulley drive mechanism includes a second driving synchronous pulley mounted on the right end of the driven shaft and a second driven flange synchronous pulley mounted on the right side of the fixed shaft. A second synchronous belt meshes with the second driving synchronous pulley and the second driven flange synchronous pulley. The second driving synchronous pulley includes a synchronous pulley mounting flange and a replaceable synchronous pulley sleeve. The replaceable synchronous pulley sleeve is mounted around the synchronous pulley mounting flange, and the synchronous pulley mounting flange is mounted on the right end of the driven shaft.

[0013] Furthermore, the wheel includes a left wheel L and a right wheel R. The left wheel L has a flange installed on its left side and is driven entirely by inertia. The right wheel R is connected to a second driven flange synchronous wheel on its left side and has a flat flange installed on its right side. The fixed shaft has a first limiting sleeve and a second limiting sleeve installed at both ends.

[0014] Furthermore, the cam is installed between the left wheel L and the first driven flange synchronous pulley, and is connected to the first driven flange synchronous pulley. The steering mechanism includes a front fork, a front fork stop lever, a steering wheel axle, a steering wheel, and a return elastic band. The front fork is installed on the lower surface of the base plate, the front fork stop lever is installed on the side of the front fork, the steering wheel axle is installed on the lower part of the front fork, the steering wheel is installed on the periphery of the steering wheel axle, and one end of the return elastic band is connected to the front fork stop lever, and the other end is connected to the lower surface of the base plate.

[0015] Furthermore, the steering mechanism also includes a fine-tuning mechanism, comprising a first fine-tuning mechanism and a second fine-tuning mechanism. The first fine-tuning mechanism includes a slide rail, a slider, and a differential head. The slide rail is mounted on the side of the base plate. The slider includes a first slider and a second slider, both of which cooperate with the slide rail. The first slider is equipped with a cam stop, and the cam stop is equipped with a cam stop bar that is tangent to the cam. The second slider is equipped with a differential head seat, and a differential head is mounted on the side of the differential head seat. The differential head is tangent to the cam stop. By adjusting the differential head, the micron-level adjustment of the cam base circle radius can be achieved. The second fine-tuning mechanism includes a differential slider, a differential slider plate seat, and a tap push rod. The differential slider is mounted on the lower surface of the differential head seat, and the differential slider plate seat is mounted on the lower surface of the differential slider. The tap push rod is connected to the differential slider plate seat and is tangent to the fork stop bar.

[0016] Furthermore, an NFC card reader is also installed under the vehicle body.

[0017] Furthermore, a control board is also mounted on the circuit mounting plate, and the control board is equipped with a voice broadcast module.

[0018] The technical solution adopted in this utility model has the following beneficial effects:

[0019] Compared with the prior art, the beneficial effects of this utility model include at least the following:

[0020] 1. This utility model combines gear transmission, belt transmission and cam transmission. The cam is connected to the first driven flange synchronous wheel on the fixed shaft and rotates together. It is directly driven by the first driven flange synchronous wheel on the driven shaft, and the left wheel is fully driven by inertia, which reduces energy loss and further improves the energy utilization rate and continuous running time of the trolley.

[0021] 2. In the process of the cam-driven steering mechanism, the first fine-tuning mechanism can achieve micron-level adjustment of the base circle radius to reduce errors in the manufacturing and assembly process. The second fine-tuning mechanism can adjust the steering amplitude of the trolley. The cooperation of the two fine-tuning mechanisms can correct the trolley path, thereby improving the running accuracy of the trolley.

[0022] 3. The second active synchronous pulley of this utility model adopts a replaceable synchronous pulley sleeve, which is convenient for disassembly and assembly. It can also be matched with different cams according to different paths, thus adapting to a wider range of route scenarios.

[0023] 4. The supporting carbon rod of this utility model, used to connect the vehicle body and the outer shell, is made of carbon fiber rod and metal internal thread cylindrical pin glued together. While ensuring a stable connection between the vehicle body and the outer shell, it achieves a lightweight design and high strength.

[0024] 5. The vehicle body and the vehicle shell of this utility model adopt a modular design, which is convenient for installation and disassembly, and the separation of the two does not affect the operation of the vehicle.

[0025] 6. Unlike previous line-following vehicles, this utility model uses only one motor to realize the movement and turning of the line-following vehicle, which reduces the complexity of the vehicle and improves the efficiency of energy utilization. Attached Figure Description

[0026] The above and other objects, features, and advantages of the present invention will become readily understood by reading the following detailed description of exemplary embodiments with reference to the accompanying drawings. In the drawings, several embodiments of the present invention are shown by way of example and not limitation, with the same or corresponding reference numerals denoteing the same or corresponding parts, wherein:

[0027] Figure 1 A three-dimensional structural schematic diagram of a solar-powered tracking vehicle based on a composite transmission, according to an optional embodiment of the present invention, is shown.

[0028] Figure 2 It shows Figure 1 A three-dimensional structural diagram of the CRRC body;

[0029] Figure 3 It shows Figure 1 A structural diagram showing another placement angle of the CRRC body;

[0030] Figure 4 It shows Figure 3 A sectional view of the driven shaft and its components;

[0031] Figure 5 A three-dimensional disassembled structural diagram of the second active synchronizing pulley provided by this utility model is shown;

[0032] Explanation of icon numbers:

[0033] 1. Base plate; 2. Vehicle body; 3. Solar panel; 4L, left wheel; 4R, right wheel; 5. Rear spoiler; 6. Motor; 7. Circuit mounting plate; 8. Capacitor pack; 9. Control board; 10. Voice broadcast module; 11. First support carbon rod; 12. Second support carbon rod; 13. Third support carbon rod; 14. Fourth support carbon rod; 15. Metal internal thread cylindrical pin; 16. Fixed shaft; 17. Driven shaft; 18. One-way bearing; 19. Drive gear; 20. Driven gear; 21. First drive synchronous pulley; 22. First driven flange synchronous pulley; 23. First synchronous belt; 24. Synchronous pulley 25. Mounting flange; 26. Replaceable timing pulley sleeve; 27. Second driven flange timing pulley; 28. Second timing belt; 29. ​​Flange; 30. Flat flange; 31. First limiting sleeve; 32. Second limiting sleeve; 33. Cam; 34. Front fork; 35. Front fork stop lever; 36. Steering wheel axle; 37. Steering wheel; 38. Return elastic band; 39. Slide rail; 40. First slider; 41. Second slider; 42. Cam stop; 43. Cam stop lever; 44. Differential head seat; 45. Differential head; 46. Differential slider; 47. Differential slider plate seat; 48. Tap push rod; 49. NFC card reader. Detailed Implementation

[0034] Exemplary embodiments of the present disclosure will now be described in more detail with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art. Unless otherwise specified, the techniques used in the embodiments are conventional means well known to those skilled in the art.

[0035] like Figures 1-5 As shown, the solar-powered tracking car based on composite transmission provided by this utility model includes a car body and a car shell 2. The car body includes a base plate 1 and wheels. The base plate 1 is equipped with a motor 6, a positioning tail wing 5, and a circuit fixing plate 7. Before the car departs, the angle and distance on the angle ruler need to be determined according to the designed departure position and marked. The positioning tail wing 5 is aligned with the marked position on the angle ruler to determine the actual departure position of the car. The circuit fixing plate 7 is equipped with a capacitor bank 8, a control board 9, and a voice broadcast module 10. The car shell 2 is equipped with a solar panel 3. The car shell 2 is connected to the base plate 1 through multiple supporting carbon rods. The two ends of the supporting carbon rods are connected with metal internal thread cylindrical pins 15. The motor 6, capacitor bank 8, voice broadcast module 10, and solar panel 3 are all electrically connected to the control board 9. When the car is under sufficient sunlight, the solar panel 3 converts light energy into electrical energy and stores it in the capacitor bank 8. After the car is powered on, it departs from the departure position and travels along the prescribed route.

[0036] Among them, the multiple supporting carbon rods are the first supporting carbon rod 11, the second supporting carbon rod 12, the third supporting carbon rod 13, and the fourth supporting carbon rod 14. The supporting carbon rods are made of carbon fiber, which ensures a stable connection between the vehicle body and the vehicle shell while achieving a lightweight design and high strength.

[0037] The vehicle body is also equipped with a transmission device, including a fixed shaft 16 mounted on the lower surface of the base plate 1, a driven shaft 17 mounted on the upper surface of the base plate 1, a one-way bearing 18 mounted on the driven shaft 17, a gear transmission mechanism between the output shaft of the motor 6 and the driven shaft 17, and a pulley transmission mechanism between the driven shaft 17 and the fixed shaft 16.

[0038] like Figure 2 and Figure 3 As shown, the gear transmission mechanism includes a driving gear 19 mounted on the output shaft of the motor 6 and a driven gear 20 mounted on the one-way bearing 18 of the driven shaft 17. The driving gear 19 meshes with the driven gear 20 to transmit the power of the motor 6 to the driven shaft 17. The pulley transmission mechanism includes a first pulley transmission mechanism on the left side of the vehicle body and a second pulley transmission mechanism on the right side of the vehicle body. The first pulley transmission mechanism includes a first driving synchronous pulley 21 mounted on the left end of the driven shaft 17 and a first driven flange synchronous pulley 22 mounted on the left side of the fixed shaft 16. Both the first driving synchronous pulley 21 and the first driven flange synchronous pulley 22 are connected to the drive shaft 17. The first synchronous belt 23 engages; the second pulley transmission mechanism includes a second driving synchronous pulley mounted on the right end of the driven shaft 17 and a second driven flange synchronous pulley 26 mounted on the right side of the fixed shaft 16. Both the second driving synchronous pulley and the second driven flange synchronous pulley 26 engage with the second synchronous belt 27; the second driving synchronous pulley includes a synchronous pulley mounting flange 24 and a replaceable synchronous pulley sleeve 25. The replaceable synchronous pulley sleeve 25 is mounted around the synchronous pulley mounting flange 24, and the synchronous pulley mounting flange 23 is mounted on the right end of the driven shaft 17, which facilitates the replacement of synchronous pulley sleeves with different numbers of teeth to form different transmission ratios, thereby adapting to a wider range of route scenarios.

[0039] like Figure 2 and Figure 3 As shown, the wheel includes a left wheel 4L and a right wheel 4R. The left wheel 4L has a flange 28 installed on its left side and is fully driven. The right wheel 4R is connected to the second driven flange synchronous wheel 26 on its left side and has a flat flange 29 installed on its right side. Driven by the second driving flange synchronous wheel, the right wheel 4R and the second driven flange synchronous wheel 26 rotate together. In this way, the right wheel 4R drives the left wheel 4L to rotate together to realize the operation of the trolley. The fixed shaft 16 has a first limit sleeve 30 and a second limit sleeve 31 installed at both ends.

[0040] like Figure 2 and Figure 3As shown, the vehicle body is also equipped with a cam 32 and a steering mechanism. The cam 32 is installed between the left wheel 4L and the first driven flange synchronous pulley 21, and is connected to the first driven flange synchronous pulley 22. Driven by the first driving synchronous pulley 21, the cam rotates together with the first driven flange synchronous pulley 22. Different cams can be designed to achieve the desired purpose for different routes. The steering mechanism includes a front fork 33, a front fork lever 34, a steering wheel shaft 35, a steering wheel 36, and a return elastic band 37. The front fork 33 is installed on the lower surface of the base plate 1, the front fork lever 34 is installed on the side of the front fork 33, the steering wheel shaft 35 is installed on the lower part of the front fork 33, the steering wheel 36 is installed on the periphery of the steering wheel shaft 35, and one end of the return elastic band 37 is connected to the front fork lever and the other end is connected to the lower surface of the base plate.

[0041] like Figure 2 and Figure 3 As shown, the steering mechanism also includes a fine-tuning mechanism, comprising a first fine-tuning mechanism and a second fine-tuning mechanism. The first fine-tuning mechanism includes a slide rail 38, a slider, and a micrometer head 44. The slide rail 38 is mounted on the side of the base plate 1. The slider includes a first slider 39 and a second slider 40, both of which cooperate with the slide rail 38. The first slider 39 is equipped with a cam stop 41, and the cam stop 41 is equipped with a cam stop lever 42, which is tangent to the cam 32. The second slider 40 is equipped with a micrometer head seat 43, and a micrometer head 44 is mounted on the side of the micrometer head seat 43. The micrometer head 44 is tangent to the cam stop 41. By adjusting the micrometer head 44, the base circle radius of the cam 32 can be adjusted at the micrometer level, thereby reducing manufacturing and assembly errors and correcting the trolley path. The second fine-tuning mechanism... The system includes a differential slider 45, a differential slider plate seat 46, and a tap push rod 47. The differential slider 45 is mounted on the lower surface of the differential head seat 43, and the differential slider plate seat 46 is mounted on the lower surface of the differential slider 45. The tap push rod 47 is connected to the differential slider plate seat 46 and is tangent to the front fork stop lever 34. The steering amplitude can be adjusted by adjusting the differential slider 45. Due to the tension of the reset elastic band 37, the cam stop lever 42 is in close contact with the cam 32, the differential head 44 is in close contact with the cam stop 41, and the front fork stop lever 34 is in close contact with the tap push rod 47. During the rotation of the cam 32, the cam 32 drives the cam stop 41 to reciprocate linearly, the cam stop 41 drives the differential head seat 43 to reciprocate linearly, and the tap push rod 47 drives the front fork 33 to reciprocate.

[0042] By combining the two fine-tuning mechanisms, the cam base circle radius, steering amplitude, and trolley trajectory can be comprehensively and specifically adjusted, greatly improving the trolley's running accuracy.

[0043] An NFC card reader 48 is also installed under the vehicle body. When the vehicle runs to a designated location, the NFC card reader 48 identifies the corresponding location information and transmits it to the control board 9. The voice broadcast module 10 receives the signal sent by the control board 9 and broadcasts it.

[0044] In the past, gear transmission alone caused noise and increased weight, leading to increased energy consumption. Pulley transmission alone resulted in significant energy loss during transmission and lacked sufficient steering flexibility. This new tracking car uses a composite transmission of gears, pulleys, and cams, which balances transmission efficiency, lightweight design, energy utilization, and steering flexibility. Furthermore, the combination of gear transmission and pulley rotation reduces weight while maintaining transmission efficiency.

[0045] Meanwhile, the vehicle of this utility model uses only one motor to achieve overall control of movement and steering. The steering aspect can be adjusted according to the route, and the steering is controlled by the transmission of the cam. This solves the problem of low solar energy utilization caused by separate motors controlling steering and movement in previous vehicles, thus improving the solar energy utilization rate of the vehicle.

[0046] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

[0047] It should be noted that, unless otherwise stated, the technical or scientific terms used in this invention should be understood in their ordinary sense by those skilled in the art to which this invention pertains. In this document, relational terms such as “first” and “second” are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. The terms “connection”, “linked,” etc., should be interpreted broadly, for example, referring to a fixed connection, a detachable connection, or an integral connection; a mechanical connection or an electrical connection; a direct connection or an indirect connection via an intermediate medium. The terms “comprising,” “including,” or any other variations thereof are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase “comprising…” does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

Claims

1. A solar-powered tracking vehicle based on composite transmission, comprising a vehicle body, a solar panel (3) mounted on the vehicle body, and an energy storage mechanism disposed within the vehicle body, the energy storage mechanism being electrically connected to the solar panel (3), characterized in that, The vehicle body is equipped with a motor (6) and a transmission structure. The transmission structure includes a fixed shaft (16) installed on the lower surface of the vehicle body, a driven shaft (17) installed in the vehicle body, a one-way bearing (18) installed on the driven shaft (17), a gear transmission mechanism between the output shaft of the motor (6) and the driven shaft (17), and a pulley transmission mechanism between the driven shaft (17) and the fixed shaft (16). The fixed shaft (16) is connected to the wheels of the vehicle body at both ends, and the output end of the pulley transmission mechanism is also connected to a cam (32). A steering mechanism is abutted on the cam (32), and the steering mechanism is connected to the steering wheel of the vehicle body.

2. The solar-powered tracking vehicle based on composite transmission according to claim 1, characterized in that, The vehicle body includes a floor plate (1) and wheels. The floor plate (1) is equipped with a motor (6), a positioning tail wing (5) and a circuit fixing plate (7). The positioning tail wing (5) and the angle ruler cooperate to determine the starting position. The energy storage mechanism is a capacitor bank (8) set inside the vehicle body. The solar-powered tracking vehicle also includes a vehicle shell (2), which encapsulates the vehicle body. A solar panel (3) is installed on the top and connected to the base plate (1) by multiple supporting carbon rods. The two ends of the supporting carbon rods are fixed by metal internal thread cylindrical pins (15).

3. The solar-powered tracking vehicle based on composite transmission according to claim 1, characterized in that, Furthermore, the shape of the cam is set according to the running trajectory of the vehicle body.

4. The solar-powered tracking vehicle based on composite transmission according to claim 1, characterized in that, The gear transmission mechanism includes a driving gear (19) mounted on the output shaft of the motor (6) and a driven gear (20) mounted on a one-way bearing (18) of the driven shaft (17), wherein the driving gear (19) meshes with the driven gear (20).

5. The solar-powered tracking vehicle based on composite transmission according to claim 1, characterized in that, The pulley drive mechanism includes a first pulley drive mechanism on the left side of the vehicle body and a second pulley drive mechanism on the right side of the vehicle body. The first pulley drive mechanism includes a first driving synchronous pulley (21) installed on the left end of the driven shaft (17) and a first driven flange synchronous pulley (22) installed on the left side of the fixed shaft (16). A first synchronous belt (23) meshes on the first driving synchronous pulley (21) and the first driven flange synchronous pulley (22). The second pulley drive mechanism includes a second driving synchronous pulley installed on the right end of the driven shaft (17) and a second driven flange synchronous pulley (26) installed on the right side of the fixed shaft (16). A second synchronous belt (27) meshes on the second driving synchronous pulley and the second driven flange synchronous pulley (26). The second driving synchronous pulley includes a synchronous pulley mounting flange (24) and a replaceable synchronous pulley sleeve (25). The replaceable synchronous pulley sleeve (25) is installed around the synchronous pulley mounting flange (24), and the synchronous pulley mounting flange (24) is installed on the right end of the driven shaft (17).

6. The solar-powered tracking vehicle based on composite transmission according to claim 5, characterized in that, The wheel includes a left wheel (4L) and a right wheel (4R). The left wheel (4L) has a flange (28) installed on its left side and is driven entirely by inertia. The right wheel (4R) is connected to the second driven flange synchronous wheel (26) on its left side and has a flat flange (29) installed on its right side. The fixed shaft (16) has a first limiting sleeve (30) and a second limiting sleeve (31) installed at both ends.

7. The solar-powered tracking vehicle based on composite transmission according to claim 6, characterized in that, The cam is installed between the left wheel (4L) and the first driven flange synchronous wheel (22) and is connected to the first driven flange synchronous wheel (22). The steering mechanism includes a front fork (33), a front fork stop (34), a steering wheel shaft (35), a steering wheel (36), and a return elastic band (37). The front fork (33) is installed on the lower surface of the base plate (1). The front fork stop (34) is installed on the side of the front fork (33). The steering wheel shaft (35) is installed on the lower part of the front fork (33). The steering wheel (36) is installed on the periphery of the steering wheel shaft (35). One end of the return elastic band (37) is connected to the front fork stop and the other end is connected to the lower surface of the base plate (1).

8. The solar-powered tracking vehicle based on composite transmission according to claim 7, characterized in that, The steering mechanism also includes a fine-tuning mechanism, comprising a first fine-tuning mechanism and a second fine-tuning mechanism. The first fine-tuning mechanism includes a slide rail (38), a slider, and a differential head (44). The slide rail (38) is mounted on the side of the base plate (1). The slider includes a first slider (39) and a second slider (40), both of which cooperate with the slide rail (38). The first slider (39) is equipped with a cam stop (41), and the cam stop (41) is equipped with a cam stop bar (42) that is tangent to the cam (32). The second slider (40) is equipped with a differential head seat (43). 43) A micrometer head (44) is installed on the side. The micrometer head (44) is tangent to the cam stop (41). By adjusting the micrometer head (44), the micrometer radius of the base circle of the cam (32) can be adjusted at the micrometer level. The second fine adjustment mechanism includes a micrometer slider (45), a micrometer slider plate seat (46), and a tap push rod (47). The micrometer slider (45) is installed on the lower surface of the micrometer head seat (43). The micrometer slider plate seat (46) is installed on the lower surface of the micrometer slider (45). The tap push rod (47) is connected to the micrometer slider plate seat (46) and is tangent to the front fork stop (34).

9. The solar-powered tracking vehicle based on composite transmission according to claim 1, characterized in that, An NFC card reader (48) is also installed under the vehicle body.

10. The solar-powered tracking vehicle based on composite transmission according to claim 2, characterized in that, The circuit fixing plate (7) is also equipped with a control plate (9), and the control plate (9) is provided with a voice broadcast module (10).

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