Rotating mechanism for heliostat

Abstract

The utility model relates to the technical field of solar equipment, and discloses a rotating mechanism for a heliostat, which comprises a base, a stand column fixedly connected to the upper end of the base, a rotating column rotatably connected to the interior of the stand column, a connecting column fixedly connected to the upper end of the rotating column, a mirror surface mounted at the upper end of the connecting column and a heat dissipation box fixedly connected to the upper end of the base. A driving motor is fixedly connected into the heat dissipation box, the output end of the driving motor is fixedly connected with a second bevel gear, the second bevel gear is meshed with a first bevel gear, the top end of the first bevel gear is fixedly connected with the rotating column, and a heat dissipation cover is installed at the upper end of the heat dissipation box. According to the heliostat device, the driving motor can be exposed out of the heat dissipation box by dismounting the heat dissipation cover, so that the whole heliostat device does not need to be dismounted in the process of dismounting and detecting the driving motor, only the heat dissipation box and the heat dissipation cover need to be dismounted for local maintenance, the difficulty of overhauling the rotating mechanism is reduced, and the maintenance efficiency is improved. And the heliostat can continue to carry out photovoltaic work when the rotating mechanism is maintained, so that the photovoltaic work is not influenced by the maintenance work.

Description

TECHNICAL FIELD

[0001] The utility model relates to solar equipment technical field, specifically point to a kind of rotating mechanism for heliostat. BACKGROUND

[0002] Heliostat is the most basic light-collecting unit in tower type solar thermal power generation system, used to focus sunlight on the receiver on the top of tower, to generate steam by high temperature to drive generator to generate electricity. Heliostat is mainly composed of optical reflector, support structure, column, transmission and tracking control system. Mirror surface material mainly includes silver-plated low-iron glass reflector and tension metal film reflector.

[0003] The working principle of heliostat is based on the law of reflection of light. Its core is to track the sun by rotating the reflector, so that sunlight can be emitted in a certain direction after reflection, thereby achieving large-scale collection of solar energy. Heliostat usually adopts dual-axis tracking mode, common ones include azimuth-elevation tracking, elevation-inclination tracking with fixed-axis horizontal placement, spin-elevation tracking with fixed-axis pointing to target position and polar-axis tracking. Among them, azimuth-elevation tracking is the most widely used mode.

[0004] The existing heliostat will track according to the movement of the sun when performing photovoltaic power generation work, usually by driving the heliostat to rotate through the motor installed inside the column. However, since the motor is installed inside the column, when the motor needs to be repaired and disassembled, the photovoltaic assembly including the heliostat needs to be completely disassembled, so that the motor can be removed for repair. This affects the photovoltaic power generation work of the heliostat during repair, and the repair process is complicated and inconvenient. UTILITY MODEL CONTENTS

[0005] The purpose of the present application is to solve the problem that the existing heliostat rotating mechanism affects the photovoltaic power generation work of the heliostat during repair, and the repair process is complicated and inconvenient. The present application provides a rotating mechanism for heliostat.

[0006] The present application adopts the following technical solutions to achieve the above purpose:

[0007] A rotating mechanism for heliostat, comprising a base, a column fixedly connected to the upper end of the base, a rotating column rotatably connected inside the column, a connecting column fixedly connected to the upper end of the rotating column, a mirror surface installed on the upper end of the connecting column, a heat dissipation box fixedly connected to the upper end of the base, a drive motor fixedly connected inside the heat dissipation box, a bevel gear two fixedly connected to the output end of the drive motor, a bevel gear one engaged with the bevel gear two, the top end of the bevel gear one fixedly connected with the rotating column, a heat dissipation cover installed on the upper end of the heat dissipation box, and a disassembly structure provided between the heat dissipation box and the heat dissipation cover.

[0008] By adopting the above technical scheme, when the device generates photovoltaic power, the driving motor is started to drive the bevel gear II to rotate, so that the bevel gear II drives the bevel gear I to rotate, which drives the rotating column to rotate, and then drives the connecting column to rotate through the rotating column, and the mirror surface installed at the end of the connecting column also rotates with the rotating column, so that the device continuously chases the movement track of the sun, and the driving motor can be placed outside the stand column through the arrangement of the bevel gear I and the bevel gear II, and the driving motor is protected by the heat dissipation box, and the driving motor is exposed outside the heat dissipation box through the disassembly of the heat dissipation cover, so that the whole heliostat device does not need to be disassembled during the process of disassembling and detecting the driving motor, only the heat dissipation box and the heat dissipation cover need to be disassembled for local maintenance, which greatly reduces the difficulty of overhauling the rotating mechanism, and ensures that the heliostat can continue to work for photovoltaic power when the rotating mechanism is maintained, so that the maintenance work does not affect the photovoltaic work.

[0009] Further, the disassembly structure comprises a slot formed in the heat dissipation box, a clamping motor fixedly connected in the slot, a double screw rod fixedly connected to the output end of the clamping motor, clamping blocks threadedly connected to both ends of the double screw rod, a telescopic column fixedly connected to the upper end of the clamping block, a limiting plate fixedly connected to the upper end of the telescopic column, a plug plate fixedly connected to the lower end of the heat dissipation cover, the plug plate being adapted in size to the slot, and a limiting groove formed in the plug plate and adapted in shape to the limiting plate.

[0010] By adopting the above technical scheme, when the rotating mechanism of the device needs to be overhauled, the clamping motor is first started to drive the double screw rod to rotate, and the double screw rod drives the two clamping blocks to move towards each other, at this time the clamping blocks drive the limiting plate at the upper end to move away from the limiting groove in the plug plate, so that the limiting plate no longer abuts against the plug plate, at this time the heat dissipation cover is pulled upwards to disassemble it from the heat dissipation box, and at this time the driving motor is completely exposed outside the heat dissipation box, which facilitates the subsequent disassembly and detection work of the operator.

[0011] Further, the upper end of the clamping block is fixedly connected to a limiting spring, and the upper end of the limiting spring is fixedly connected to the limiting plate.

[0012] By adopting the above technical scheme, the stretched limiting spring is reset to drive the limiting plate to abut against the inner wall of the limiting groove to abut against and limit the plug plate, at this time the heat dissipation cover is fixed on the heat dissipation box.

[0013] Further, a pull handle is fixedly connected to the upper end of the heat dissipation cover, a sealing strip is fixedly connected to the side of the heat dissipation cover close to the heat dissipation box, a sealing groove is formed in the outer surface of the heat dissipation box, and the sealing groove is adapted in shape to the sealing strip.

[0014] Through the above technical scheme, the cooperation of the sealing strip and the sealing groove ensures the sealing of the heat dissipation box during the whole loading and unloading process, and prevents impurities such as dust and moisture from entering the heat dissipation box to damage the driving motor.

[0015] Further, the heat dissipation cover is fixedly connected with a dustproof net on one side, and a heat dissipation frame is fixedly connected inside the heat dissipation cover, a heat dissipation plate is installed inside the heat dissipation frame, a plurality of fans are installed inside the heat dissipation plate, and a heat dissipation groove is formed on the side of the heat dissipation frame away from the dustproof net.

[0016] Through the above technical scheme, the plurality of fans installed inside the heat dissipation plate are started to allow air to enter the heat dissipation cover through the dustproof net, at this time, the heat inside the heat dissipation box is taken away by the airflow generated by the rotation of the fans, and the heat is discharged outside the heat dissipation cover through the heat dissipation groove, thereby improving the heat dissipation efficiency.

[0017] Further, the heat dissipation plate is fixedly connected with mounting blocks on both sides, and the heat dissipation frame is provided with mounting grooves inside.

[0018] Through the above technical scheme, the mounting blocks are inserted into the mounting grooves to quickly mount and fix the heat dissipation plate in the heat dissipation frame, thereby improving the assembly efficiency and ensuring stable operation of the heat dissipation plate.

[0019] Further, a semicircular limiting groove is formed in the outer surface of the mounting block, a sliding column is slidably connected inside the mounting groove, and a semicircular limiting block is fixedly connected to the end of the sliding column, and the shape of the semicircular limiting block is matched with the semicircular limiting groove.

[0020] Through the above technical scheme, the semicircular limiting block is clamped into the semicircular limiting groove to limit and fix the heat dissipation plate, which is simple and convenient, and makes the heat dissipation plate more convenient to mount and dismount.

[0021] Further, the sliding column is sleeved with a mounting spring on the outside, and the mounting spring is fixedly connected to the semicircular limiting block and the mounting groove at both ends.

[0022] Through the above technical scheme, the mounting spring is elastically reset to drive the semicircular limiting block to slide inside the mounting groove until the semicircular limiting block is clamped into the semicircular limiting groove.

[0023] In summary, the present application has at least one of the following beneficial effects.

[0024] The application, when the rotating mechanism of the device needs to be overhauled, first starts the clamping motor to drive the bidirectional screw to rotate, the bidirectional screw rotates to move the two clamping blocks towards each other, at this time the clamping blocks move the upper end of the limiting plate away from the limiting groove inside the plug-in plate, so that the limiting plate no longer abuts against the plug-in plate, at this time the driving motor is completely exposed outside the heat dissipation box, which facilitates the subsequent disassembly and detection work of the operator, the disassembly structure simplifies the disassembly steps, improves the disassembly efficiency, and ensures the safety and reliability during disassembly.

[0025] The application, when the driving motor is in use, starts the several fans installed inside the heat dissipation plate to let the air enter the inside of the heat dissipation cover through the dustproof net, at this time the heat inside the heat dissipation box is taken away by the airflow with the rotation of the fan, and the heat is discharged outside the heat dissipation cover through the heat dissipation groove, improving the heat dissipation efficiency, when the heat dissipation plate needs to be disassembled and repaired, the handle is pulled to move upwards, so that the mounting block moves and extrudes the semicircular limiting block, which makes the semicircular limiting block drive the sliding column to slide inside the mounting groove and extrude and shrink the mounting spring, at this time the semicircular limiting block is separated from the semicircular limiting groove, and the limiting of the heat dissipation plate is released, at this time the heat dissipation plate can be disassembled from the inside of the heat dissipation frame, making the installation and disassembly of the heat dissipation plate more convenient and improving the work efficiency, the several fans installed inside the heat dissipation plate can dissipate heat for the driving motor, avoiding damage of the internal parts of the driving motor due to excessive temperature, prolonging the service life of the driving motor. BRIEF DESCRIPTION OF DRAWINGS

[0026] Figure 1 is a perspective structural schematic view of a rotating mechanism for a heliostat in the application;

[0027] Figure 2 is a back view of a rotating mechanism for a heliostat in the application;

[0028] Figure 3 is a schematic view of the internal structure of a rotating mechanism for a heliostat in the application;

[0029] Figure 4 is a partial sectional view of a heat dissipation box of a rotating mechanism for a heliostat in the application;

[0030] Figure 5 is a partial sectional view of a heat dissipation cover of a rotating mechanism for a heliostat in the application;

[0031] Figure 6 is an exploded view of a heat dissipation cover of a rotating mechanism for a heliostat in the application;

[0032] Figure 7 is a schematic view ofFigure 3 Enlarged view at A;

[0033] Figure 8 The present application is Figure 4 Enlarged view at B;

[0034] Figure 9 The present application is Figure 5 Enlarged view at C.

[0035] BRIEF DESCRIPTION OF DRAWINGS

[0036] 1, base; 2, stand; 3, mirror surface; 4, heat dissipation box; 5, heat dissipation cover; 6, dust screen; 7, heat dissipation plate; 8, clamping motor; 9, bidirectional screw; 10, connecting column; 11, rotating column; 12, bevel gear one; 13, bevel gear two; 14, driving motor; 15, fan; 16, heat dissipation frame; 17, sealing strip; 18, mounting block; 19, semicircular limiting block; 20, sliding column; 21, mounting spring; 22, clamping block; 23, limiting plate; 24, telescopic column; 25, limiting spring; 26, pull handle; 27, plugboard. DETAILED DESCRIPTION

[0037] The technical scheme in the embodiments of the present application will be described below in a clear and complete manner. Figures 1-6 It is apparent that the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the present application.

[0038] With reference to Figure 1 and Figure 2 The present application provides a technical scheme: a rotating mechanism for a heliostat, comprising a base 1, the upper end of the base 1 being fixedly connected with a stand 2, the inside of the stand 2 being rotatably connected with a rotating column 11, the upper end of the rotating column 11 being fixedly connected with a connecting column 10, the connecting column 10 being installed with a mirror surface 3 at the upper end, the upper end of the base 1 being fixedly connected with a heat dissipation box 4, the inside of the heat dissipation box 4 being fixedly connected with a driving motor 14, the output end of the driving motor 14 being fixedly connected with a bevel gear two 13, the bevel gear two 13 being engaged with a bevel gear one 12, the top end of the bevel gear one 12 being fixedly connected with the rotating column 11, the heat dissipation box 4 being installed with a heat dissipation cover 5 at the upper end, and a dismounting structure being arranged between the heat dissipation box 4 and the heat dissipation cover 5.

[0039] When the device generates photovoltaic power, the driving motor 14 is started to drive the bevel gear two 13 to rotate, so that the bevel gear two 13 drives the bevel gear one 12 to rotate, which drives the rotating column 11 to rotate, and then drives the connecting column 10 to rotate through the rotating column 11, and the mirror surface 3 installed at the end of the connecting column 10 also rotates with the rotating column 11, so that the device continuously chases the motion track of the sun. The driving motor 14 can be placed outside the stand column 2 through the arrangement of the bevel gear one 12 and the bevel gear two 13, and the driving motor 14 is protected by the heat dissipation box 4. The driving motor 14 is exposed outside the heat dissipation box 4 by detaching the heat dissipation cover 5, so that the whole heliostat device does not need to be disassembled during the process of detaching and detecting the driving motor 14, only the heat dissipation box 4 and the heat dissipation cover 5 need to be disassembled for local maintenance, which greatly reduces the difficulty of repairing the rotating mechanism, and ensures that the heliostat can continue to work in photovoltaic mode during the repair of the rotating mechanism, so that the maintenance work does not affect the photovoltaic work.

[0040] Referring to Figure 3 With Figure 4 , Figure 7 , Figure 8 The disassembly structure includes a slot formed in the heat dissipation box 4, the slot is fixedly connected with a clamping motor 8 inside, the clamping motor 8 is fixedly connected with a double screw rod 9 at the output end, the double screw rod 9 is threadedly connected with a clamping block 22 at both ends, the clamping block 22 is fixedly connected with an extension column 24 at the upper end, the extension column 24 is fixedly connected with a limiting plate 23 at the upper end, the heat dissipation cover 5 is fixedly connected with a plug plate 27 at the lower end, the size of the plug plate 27 is matched with the slot, a limiting groove is formed in the plug plate 27, and the shape of the limiting groove is matched with the limiting plate 23. The clamping block 22 is fixedly connected with a limiting spring 25 at the upper end, and the limiting spring 25 is fixedly connected with the limiting plate 23 at the upper end. The heat dissipation cover 5 is fixedly connected with a pull handle 26 at the upper end, and the heat dissipation cover 5 is fixedly connected with a sealing strip 17 on the side close to the heat dissipation box 4. A sealing groove is formed on the outer surface of the heat dissipation box 4, and the shape of the sealing groove is matched with the sealing strip 17.

[0041] When the rotating mechanism of the device needs to be overhauled, first start the clamping motor 8 to drive the bidirectional screw rod 9 to rotate, the bidirectional screw rod 9 rotates to move the two clamping blocks 22 towards each other, at this time the clamping block 22 drives the upper end of the limiting plate 23 to move away from the limiting groove inside the plug-in plate 27, so that the limiting plate 23 no longer abuts against the plug-in plate 27, at this time pull the handle 26 to drive the heat dissipation cover 5 to move upwards, and the heat dissipation cover 5 is detached from the heat dissipation box 4, at this time the driving motor 14 is completely exposed outside the heat dissipation box 4, facilitating the subsequent disassembly and detection work of the operator, in the process of installing the heat dissipation cover 5, first insert the plug-in plate 27 into the plug-in slot until the lower end of the heat dissipation cover 5 contacts the heat dissipation box 4, at this time start the clamping motor 8 to drive the bidirectional screw rod 9 to rotate, so that the clamping block 22 moves in the opposite direction, and with the movement of the clamping block 22, the limiting plate 23 also slides along the surface of the plug-in plate 27, at this time with the limiting plate 23 entering the limiting groove, the telescopic column 24 is stretched upwards and the limiting spring 25 is stretched, at this time the stretched limiting spring 25 resets to drive the limiting plate 23 to abut against the inner wall of the limiting groove to abut against the plug-in plate 27, at this time the heat dissipation cover 5 is fixed on the heat dissipation box 4, and in the whole disassembly process, the cooperation of the sealing strip 17 and the sealing groove ensures the sealing of the inside of the heat dissipation box 4, preventing dust and moisture and other impurities from entering the inside of the heat dissipation box 4 to cause damage to the driving motor 14, the setting of the disassembly structure not only simplifies the disassembly steps and improves the disassembly efficiency, but also ensures the safety and reliability during disassembly.

[0042] Referring to Figure 5 With Figure 6 , Figure 9 , the dustproof net 6 is fixedly connected to one side of the heat dissipation cover 5, the heat dissipation frame 16 is fixedly connected inside the heat dissipation cover 5, the heat dissipation plate 7 is installed inside the heat dissipation frame 16, and a plurality of fans 15 are installed inside the heat dissipation plate 7. The heat dissipation frame 16 is provided with a heat dissipation groove away from the side of the dustproof net 6. The installation block 18 is fixedly connected to both sides of the heat dissipation plate 7. The installation groove is formed in the heat dissipation frame 16, and the shape of the installation block 18 is matched with the installation groove. The semicircular limiting groove is formed in the outer surface of the installation block 18. The sliding column 20 is slidably connected inside the installation groove. The semicircular limiting block 19 is fixedly connected to the end of the sliding column 20. The shape of the semicircular limiting block 19 is matched with the semicircular limiting groove. The installation spring 21 is sleeved outside the sliding column 20, and the two ends of the installation spring 21 are fixedly connected with the semicircular limiting block 19 and the installation groove respectively.

[0043] When the driving motor 14 is in use, start the several fans 15 installed inside the heat dissipation plate 7, let the air enter the inside of the heat dissipation cover 5 through the dustproof net 6, at this time the heat inside the heat dissipation box 4 is taken away by the air flow with the rotation of the fan 15, and the heat is discharged outside the heat dissipation cover 5 through the heat dissipation groove, which improves the heat dissipation efficiency. When the heat dissipation plate 7 needs to be disassembled and repaired, pull the handle 26 upwards to move the mounting block 18 and extrude the semicircular limiting block 19, which makes the semicircular limiting block 19 drive the sliding column 20 to slide in the mounting slot and extrude and contract the mounting spring 21. At this time, the semicircular limiting block 19 is separated from the semicircular limiting slot, and the limiting of the heat dissipation plate 7 is released. At this time, the heat dissipation plate 7 can be disassembled from the heat dissipation frame 16. When the heat dissipation plate 7 is installed, the mounting block 18 on both sides of the heat dissipation plate 7 is inserted into the mounting slot inside the heat dissipation frame 16. At this time, the handle 26 is loosened, and the mounting spring 21 is reset due to its own elasticity, which drives the semicircular limiting block 19 to slide in the mounting slot until the semicircular limiting block 19 is clamped into the semicircular limiting slot, completing the limiting and fixing of the heat dissipation plate 7. The operation is simple and convenient, which makes the installation and disassembly of the heat dissipation plate 7 more convenient and improves the working efficiency. The several fans 15 installed inside the heat dissipation plate 7 can dissipate heat for the driving motor 14, avoid damage of the internal parts of the driving motor 14 due to high temperature, and prolong the service life of the driving motor 14.

[0044] Working principle: when the rotating mechanism of the device needs to be repaired, first start the clamping motor 8 to drive the bidirectional screw 9 to rotate, which makes the two clamping blocks 22 move towards each other. At this time, the clamping block 22 drives the upper limiting plate 23 to move away from the limiting slot inside the plug-in plate 27, so that the limiting plate 23 no longer touches the plug-in plate 27. At this time, pull the handle 26 to drive the heat dissipation cover 5 to move upwards and disassemble the heat dissipation cover 5 from the heat dissipation box 4. At this time, the driving motor 14 is completely exposed outside the heat dissipation box 4, which is convenient for the operator to carry out subsequent disassembly and detection work. In the process of installing the heat dissipation cover 5, first insert the plug-in plate 27 into the plug-in slot until the lower end of the heat dissipation cover 5 contacts the heat dissipation box 4. At this time, start the clamping motor 8 to drive the bidirectional screw 9 to rotate, which makes the clamping block 22 move in the opposite direction. With the movement of the clamping block 22, the limiting plate 23 also slides along the surface of the plug-in plate 27. At this time, with the limiting plate 23 entering the limiting slot, the stretched telescopic column 24 and the limiting spring 25 are stretched. At this time, the stretched limiting spring 25 is reset to drive the limiting plate 23 to touch the inner wall of the limiting slot and limit the plug-in plate 27. At this time, the heat dissipation cover 5 is fixed on the heat dissipation box 4. During the whole installation and disassembly process, the cooperation of the sealing strip 17 and the sealing slot ensures the sealing of the heat dissipation box 4, preventing dust and moisture and other impurities from entering the heat dissipation box 4 and causing damage to the driving motor 14. The setting of this disassembly structure not only simplifies the disassembly steps and improves the disassembly efficiency, but also ensures the safety and reliability during the disassembly process;

[0045] When the driving motor 14 is in use, several fans 15 installed inside the heat dissipation plate 7 are started, allowing air to enter the inside of the heat dissipation cover 5 through the dust screen 6, at this time the heat inside the heat dissipation box 4 is taken away by the airflow with the rotation of the fan 15, and the heat is discharged outside the heat dissipation cover 5 through the heat dissipation groove, improving the heat dissipation efficiency, when the heat dissipation plate 7 needs to be disassembled and repaired, pull the handle 26 upwards to move the mounting block 18 and extrude the semicircular limiting block 19, which makes the semicircular limiting block 19 drive the sliding column 20 to slide inside the mounting groove and extrude and contract the mounting spring 21, at this time the semicircular limiting block 19 is separated from the inside of the semicircular limiting groove, and the limiting of the heat dissipation plate 7 is released, at this time the heat dissipation plate 7 can be disassembled from the inside of the heat dissipation frame 16, when the heat dissipation plate 7 is installed, the mounting block 18 on both sides of the heat dissipation plate 7 is inserted into the mounting groove inside the heat dissipation frame 16, at this time the handle 26 is loosened, the mounting spring 21 is reset due to its elasticity, drives the semicircular limiting block 19 to slide inside the mounting groove, until the semicircular limiting block 19 is clamped into the semicircular limiting groove, the limiting and fixing of the heat dissipation plate 7 are completed, the operation is simple and convenient, the installation and disassembly of the heat dissipation plate 7 are more convenient, and the working efficiency is improved, several fans 15 installed inside the heat dissipation plate 7 can dissipate heat for the driving motor 14, avoid damage of internal parts of the driving motor 14 due to high temperature, and prolong the service life of the driving motor 14.

[0046] Although the embodiments of the present application have been shown and described, it should be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A rotating mechanism for heliostat comprising a base (1), characterized in that: The upper end of the base (1) is fixedly connected with a stand (2), the inside of the stand (2) is rotatably connected with a rotating column (11), the upper end of the rotating column (11) is fixedly connected with a connecting column (10), the upper end of the connecting column (10) is installed with a mirror surface (3), the upper end of the base (1) is fixedly connected with a heat dissipation box (4), the inside of the heat dissipation box (4) is fixedly connected with a driving motor (14), the output end of the driving motor (14) is fixedly connected with a bevel gear two (13), the bevel gear two (13) is engaged with a bevel gear one (12), the top end of the bevel gear one (12) is fixedly connected with the rotating column (11), the upper end of the heat dissipation box (4) is installed with a heat dissipation cover (5), and the heat dissipation box (4) and the heat dissipation cover (5) are provided with a dismounting structure.

2. A rotation mechanism for a heliostat according to claim 1, characterized in that: The dismounting structure comprises a slot formed in the inside of the heat dissipation box (4), the inside of the slot is fixedly connected with a clamping motor (8), the output end of the clamping motor (8) is fixedly connected with a bidirectional screw rod (9), both ends of the bidirectional screw rod (9) are threadedly connected with clamping blocks (22), the upper end of the clamping block (22) is fixedly connected with an extension column (24), the upper end of the extension column (24) is fixedly connected with a limiting plate (23), the lower end of the heat dissipation cover (5) is fixedly connected with an insertion plate (27), the size of the insertion plate (27) is matched with the slot, the inside of the insertion plate (27) is formed with a limiting groove, and the limiting groove is matched with the limiting plate (23) in shape.

3. A rotation mechanism for a heliostat according to claim 2, characterised in that: The upper end of the clamping block (22) is fixedly connected with a limiting spring (25), and the upper end of the limiting spring (25) is fixedly connected with the limiting plate (23).

4. A rotation mechanism for a heliostat according to claim 2, characterized in that: The upper end of the heat dissipation cover (5) is fixedly connected with a pull handle (26), one side of the heat dissipation cover (5) close to the heat dissipation box (4) is fixedly connected with a sealing strip (17), the outer surface of the heat dissipation box (4) is formed with a sealing groove, and the sealing groove is matched with the sealing strip (17) in shape.

5. A rotation mechanism for a heliostat according to claim 2, characterized in that: One side of the heat dissipation cover (5) is fixedly connected with a dustproof net (6), the inside of the heat dissipation cover (5) is fixedly connected with a heat dissipation frame (16), the inside of the heat dissipation frame (16) is installed with a heat dissipation plate (7), the inside of the heat dissipation plate (7) is installed with a plurality of fans (15), and one side of the heat dissipation frame (16) away from the dustproof net (6) is formed with a heat dissipation groove.

6. A rotation mechanism for a heliostat according to claim 5, characterized in that: Both sides of the heat dissipation plate (7) are fixedly connected with mounting blocks (18), the inside of the heat dissipation frame (16) is formed with mounting grooves, and the mounting blocks (18) are matched with the mounting grooves in shape.

7. A rotation mechanism for a heliostat according to claim 6, characterized in that: The outer surface of the mounting block (18) is formed with a semicircular limiting groove, the inside of the mounting groove is slidably connected with a sliding column (20), the end of the sliding column (20) is fixedly connected with a semicircular limiting block (19), and the semicircular limiting block (19) is matched with the semicircular limiting groove in shape.

8. A rotation mechanism for a heliostat according to claim 7, characterized in that: The outside of the sliding column (20) is sleeved with a mounting spring (21), and the two ends of the mounting spring (21) are fixedly connected with the semicircular limiting block (19) and the mounting groove respectively.

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