A tower type heliostat support

Abstract

The application discloses a tower type heliostat support and relates to the technical field of solar energy utilization. The tower type heliostat support comprises a mirror surface supporting assembly, an elevation angle transmission assembly and a direction angle transmission assembly. The mirror surface supporting assembly comprises a mirror surface supporting plate and a support structure. The mirror surface supporting plate is fixed on the support structure. The elevation angle transmission assembly comprises an elevation angle hinged bearing, a transmission track and an elevation angle driving bearing. The elevation angle hinged bearing is fixed on the mirror surface supporting plate. The transmission track is connected between the elevation angle hinged bearing and the elevation angle driving bearing. One end of the elevation angle driving bearing is connected with the support structure, and the other end of the elevation angle driving bearing is connected with the direction angle transmission assembly. The application increases the integrity between the sub-mirrors, promotes the reflection of the sub-mirrors, avoids light dispersion, and changes the elevation angle through the movement of the transmission track driven by the elevation angle driving bearing, so that the application is suitable for various mirror field arrangements. The transmission mode is simple and direct, and the transmission track can be replaced.

Description

Technical Field

[0001] This invention relates to the field of solar energy utilization technology, and in particular to a tower-type heliostat. Background Technology

[0002] Solar thermal power generation is currently considered a promising new energy application technology, possessing advantages such as low carbon emissions, clean operation, continuous and stable operation, reliable energy storage, and strong grid regulation capabilities. The working process of a solar thermal power generation system involves using heliostats to effectively project sunlight onto a collector at the top of an absorber tower. The collector uses a molten salt cycle to convert the heat into steam, which is then used to generate electricity via a steam turbine. Therefore, the heliostat, as a crucial component in the photothermal conversion process, is vital to the solar thermal power generation system due to its reflection and concentrating efficiency.

[0003] Tower-type heliostats need to track the sun's movement to effectively and massively reflect sunlight, concentrating it on the collector at the top of the absorber tower. This requires the heliostat's mirror surface to adjust its elevation and azimuth angles according to the sun's position, while minimizing vibrations during operation to achieve high reflection efficiency. Simultaneously, to maximize the reflection of more light within the same timeframe, improve solar thermal power generation efficiency, and increase the heliostat's field benefits, larger-area heliostats are being used. Currently, many projects employ truss structures to connect numerous sub-mirrors into a single unit, using a torque beam spanning the mirror's width as the connecting component between the mirror support truss and the columns. An elevation drive device is installed at the midpoint of the torque beam to change the mirror's height. For heliostats with large mirror areas, traditional heliostat support structures have the following drawbacks:

[0004] (1) Since the sub-mirrors are connected as a whole by truss members, there are many welded nodes. Under load and external weather conditions, node failure is likely to occur, resulting in excessive truss deformation or loosening of the sub-mirrors.

[0005] (2) The vibration amplitudes of numerous relatively independent sub-mirrors are different under load, and the overall mirror surface reflects light in a more dispersed manner, which deteriorates its optical performance and reduces its heat collection efficiency.

[0006] (3) When the mirror area is large, the number of sub-mirrors is large and the weight of the mirror support structure is large, which is unfavorable for the column and torque beam to bear the force.

[0007] (4) Large mirrors usually have a large chord length and width, a large span of torque beam, a long beam lever arm, and a small elevation angle. At the same time, the wind pressure at the edge of the mirror is large, and the bending moment and torque in the middle of the beam are large. This places high demands on the beam's stress performance and stiffness, thereby increasing manufacturing costs.

[0008] Therefore, there is an urgent need for a tower-type heliostat support that can solve problems such as node failure caused by large mirrors and multiple sub-mirrors, reduced heat collection efficiency, unfavorable stress on the torque beam, and excessive manufacturing costs caused by high-rigidity and high-strength beams. Summary of the Invention

[0009] The purpose of this invention is to provide a tower-type heliostat support that compensates for the shortcomings of the above-mentioned problems, such as the large number of sub-mirrors making node failures easy to occur, low heat collection efficiency, unfavorable stress on the torque beam, and high requirements for beam strength and rigidity, by changing the mirror connection and support method, support form, and elevation and azimuth angle transmission method.

[0010] A tower-type heliostat support includes a mirror support assembly, an elevation transmission assembly, and an azimuth transmission assembly. The mirror support assembly includes a mirror support plate and a support structure. The mirror support plate is fixed to the support structure. The elevation transmission assembly includes an elevation hinge bearing, a transmission track, and an elevation drive bearing. The elevation hinge bearing is fixed to the mirror support plate, and the transmission track connects the elevation hinge bearing and the elevation drive bearing. One end of the elevation drive bearing is connected to the support structure, and the other end is connected to the azimuth transmission assembly. The elevation transmission assembly drives the track to move through the drive bearing, thereby achieving changes in the elevation angle.

[0011] Furthermore, the support structure includes a force transmission rod, a hinge node, and a Y-shaped bracket; the force transmission rod is fixed to the mirror support plate, and the Y-shaped bracket is rotatably connected to the force transmission rod through the hinge node; the force transmission rod converts the surface pressure on the mirror support assembly into line pressure, and then transmits it to the Y-shaped bracket as a concentrated force through the hinge node.

[0012] Furthermore, the elevation angle hinged bearing includes a bearing support and a rotating bearing; the bearing support is fixed to the mirror support plate, the rotating bearing rotates relative to the bearing support, and the rotating bearing is in contact with the transmission track and remains relatively stationary.

[0013] Furthermore, the elevation angle drive bearing includes a rotating outer ring, a rotating shaft core, and a bearing base; the two ends of the rotating shaft core are fixed on the bearing base, the rotating outer ring is nested on the rotating shaft core, the transmission track fits against the outside of the elevation angle drive bearing, and the rotating outer ring is connected to a Y-shaped bracket.

[0014] Furthermore, the direction angle transmission assembly includes an insertable fixed inner core, rolling elements, a rotating outer core, and a rotating outer core stiffening rib; the insertable fixed inner core is nested within the rotating outer core;

[0015] The insertable fixed inner core is divided into upper and lower parts. The upper part of the insertable fixed inner core includes an upper cover plate, a lower support plate, and a solid column. The solid column is fixedly connected between the upper cover plate and the lower support plate, and serves as the internal fixing body of the directional angular transmission bearing. The lower part of the insertable fixed inner core includes an embedded end core column and an outward protruding column. The lower end of the solid column is fixedly connected to the embedded end core column, and multiple outward protruding columns are evenly fixed around the embedded end core column.

[0016] The rotating outer core includes an upper plate, a steel cylinder, and a lower plate. The upper part of the upper plate is fixedly connected to the bearing base, and the lower part of the upper plate is fixedly connected to the upper cover plate. The steel cylinder is nested on a solid column, and the inner wall of the steel cylinder and the outer wall of the solid column form a channel to accommodate rolling elements. The rolling elements are connected and fixed by a cage. The lower end of the steel cylinder is connected to the lower plate. The rotating outer core stiffening rib is set between the upper plate and the lower plate to improve the bending stiffness of the rotating outer core and prevent buckling of the outer core during rotation and vertical load-bearing.

[0017] Furthermore, the lower part of the insertable fixed inner core is embedded in the groove at the top of the independent column base, and the groove and the inner core are embedded in each other. The mechanical interlocking force, frictional resistance and adhesive force between the two ensure that the inner core remains fixed and does not slide when the outer core rotates. The lower plate is connected to the top of the independent column base, and the lower part of the independent column base is fixed in the foundation.

[0018] Furthermore, the transmission track is a fixed-length conveyor belt, which can achieve a change in the heliostat's elevation angle from -90° to 90°. The relationship between the heliostat's elevation angle and the number of rotations of the rotating shaft is as follows:

[0019]

[0020] In the formula, L3 is half the distance between the two elevation hinge bearings; h is the distance from the mirror to the elevation drive bearing; α is the elevation angle of the heliostat; n is the number of revolutions of the elevation drive bearing; and d is the diameter of the elevation drive bearing.

[0021] Furthermore, the mirror support panel includes a front panel, a back panel, and a honeycomb core panel; the honeycomb core panel is located between the front panel and the back panel and is bonded together with an adhesive.

[0022] Furthermore, the connection point between the force transmission rod and the mirror support plate is located at the four-eighths bisector of the mirror width direction, and its length is 1 / 2 of the mirror chord length; the connection point between the Y-shaped bracket and the force transmission rod is located at the three-eighths bisector of the mirror width direction.

[0023] Furthermore, a drive motor is installed on the independent column base.

[0024] Compared with the prior art, the present invention has the following beneficial technical effects:

[0025] This invention provides a tower-type heliostat support structure, which uses a plate support instead of a traditional truss structure for mirror support and support. This increases the contact area between the mirror and the support plate, facilitating the connection between the two and preventing sub-mirrors from being lifted or broken due to failure of a single connection point. Especially for large mirrors, the integral plate structure connects all sub-mirrors together, increasing the overall integrity between them and enabling them to work together to reflect light, thus avoiding light dispersion. The elevation angle transmission component drives the transmission track through an elevation angle drive bearing to change the elevation angle, and the relationship between the heliostat elevation angle and the number of drive revolutions of the drive bearing is given. In this invention, the elevation angle can be varied within the range of -90° to 90°, which is suitable for various mirror field arrangements, especially annular heliostat fields. The transmission method is simple and direct, and the transmission track is replaceable.

[0026] This invention uses a honeycomb sandwich panel as the mirror support plate, which provides greater bending stiffness, facilitating the support of the glass mirror and reducing its vibration amplitude under wind loads, thus ensuring the mirror's optical efficiency. Furthermore, due to its honeycomb hollow structure, the honeycomb sandwich panel possesses excellent thermal insulation and resistance to localized impacts. As a connecting component between the mirror and the support structure, its good thermal insulation performance reduces heat transfer between the mirror and the support structure, preventing thermal softening of the mirror support system. Its good resistance to localized impacts prevents localized damage from extending to the entire mirror surface, while also reducing the self-weight of the support structure.

[0027] In this invention, the force transmission point of the Y-shaped support structure and the force receiving point of the elevation transmission component are located at the four equal division points of the mirror width and chord length, respectively. The pressure transmission path of each part of the mirror is relatively short, especially at the periphery of the mirror where the pressure is greater, it can also be transmitted to the support with a shorter transmission path. Compared with the traditional support system, the lever arm length of the Y-shaped support is 1 / 4 of the mirror width. For large mirror heliostat structures, it reduces the moment at the end of the support and the fixed end, avoids the excessive bending moment at the root of the support causing insufficient anchoring strength, and the cross-sectional size of the support can also be reduced accordingly to reduce costs.

[0028] In this invention, the insertable fixed inner core and the independent column base are inserted and fixed by grooves, so that the rotating outer core can change the direction angle under the drive of the motor, which reduces the wear of the inner core. The rotating outer core is easy to repair and replace, which facilitates the later maintenance and repair of the heliostat structure. Attached Figure Description

[0029] Figure 1 This is a schematic diagram of the overall structure of a tower-type heliostat support in an embodiment of the present invention.

[0030] Figure 2 This is a schematic diagram of a tower-type heliostat support assembly according to an embodiment of the present invention.

[0031] Figure 3This is a schematic diagram of a tower-type heliostat support structure in an embodiment of the present invention.

[0032] Figure 4 This is a schematic diagram of a hinged bearing in an elevation angle transmission assembly of a tower-type heliostat support according to an embodiment of the present invention.

[0033] Figure 5 This is a side view of the overall structure of a tower-type heliostat support in an embodiment of the present invention.

[0034] Figure 6 This is a schematic cross-sectional view (B-2) of the x-axis of a tower-type heliostat support direction angle transmission component in an embodiment of the present invention.

[0035] Figure 7 This is a schematic diagram illustrating the range of elevation angle changes of a heliostat on a tower-type heliostat support and the movement of its tracks, as described in an embodiment of the present invention.

[0036] Figure 8 This is a schematic diagram of the assembly of an independent column base, a direction angle transmission component, and an elevation angle drive bearing for a tower-type heliostat support in an embodiment of the present invention.

[0037] Figure 9 This is a schematic cross-sectional view (A-1 and A-2) of the y-direction of a tower-type heliostat support direction angle transmission component in an embodiment of the present invention.

[0038] Figure 10 This is a schematic cross-sectional view (B-1) of the z-axis of a tower-type heliostat support direction angle transmission component in an embodiment of the present invention.

[0039] In the diagram, 1. Mirror support plate; 11. Front panel; 12. Back plate; 13. Honeycomb core panel; 2. Force transmission rod; 3. Hinge node; 4. Y-type bracket 4; 5. Elevation hinge bearing; 51. Bearing support; 52. Rotary bearing; 6. Transmission track; 7. Elevation drive bearing; 71. Rotating outer ring; 72. Rotating shaft; 73. Bearing base; 8. Direction angle transmission assembly; 81. Insert-type fixed inner core; 811. Top cover plate; 812. Lower support plate; 813. Solid column; 814. Embedded end core column; 815. Outer protruding column; 82. Rolling element; 83. Rotating outer core; 831. Top plate; 832. Steel cylinder; 833. Lower plate; 84. Rotating outer core stiffening rib; 9. Independent column base; 10. Drive motor. Detailed Implementation

[0040] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the scope of protection of the present invention.

[0041] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this invention are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of the invention described herein can be implemented in orders other than those illustrated or described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover a non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0042] See Figures 1 to 10 An embodiment of the present invention provides a tower-type heliostat support, including a mirror support assembly, an elevation angle transmission assembly, and a azimuth angle transmission assembly 8;

[0043] The mirror support assembly includes a mirror support plate 1 and a bracket structure; the mirror support plate is fixed on the bracket structure; the elevation angle transmission assembly includes an elevation angle hinge bearing 5, a transmission track 6, and an elevation angle drive bearing 7; the elevation angle hinge bearing 5 is fixed on the mirror support plate 1, the transmission track 6 is connected between the elevation angle hinge bearing 5 and the elevation angle drive bearing 7, one end of the elevation angle drive bearing 7 is connected to the bracket structure, and the other end of the elevation angle drive bearing 7 is connected to the azimuth angle transmission assembly 8; the elevation angle transmission assembly drives the transmission track 6 to move through the elevation angle drive bearing 7, thereby realizing the change of elevation angle.

[0044] The support structure includes a force transmission rod 2, a hinge node 3, and a Y-shaped bracket 4. The force transmission rod 2 is fixed to the mirror support plate 1, and the Y-shaped bracket 4 is rotatably connected to the force transmission rod 2 through the hinge node 3. The function of the hinge node 3 is to ensure that the mirror performs a fixed-axis rotational motion under the drive of the elevation angle transmission component. The force transmission rod 2 converts the surface pressure on the mirror support component into line pressure, and then transmits it as a concentrated force to the Y-shaped bracket 4 through the hinge node 3.

[0045] like Figure 4 and Figure 5As shown, the elevation angle hinge bearing 5 includes a bearing support 51 and a rotating bearing 52; the bearing support 51 is fixed to the mirror support plate 1, the rotating bearing 52 rotates relative to the bearing support 51, and the rotating bearing 52 is in contact with the transmission track 6.

[0046] like Figure 6 As shown, the elevation angle drive bearing 7 includes a rotating outer ring 71, a rotating shaft core 72, and a bearing base 73; the two ends of the rotating shaft core 72 are fixed on the bearing base 73, the rotating outer ring 71 is nested on the rotating shaft core 72, the rotating outer ring 71 is connected to the Y-shaped bracket 4, and the transmission track 6 is attached to the outside of the elevation angle drive bearing 7.

[0047] like Figure 5 and Figure 6 As shown, the gears on the outer side of the elevation angle drive bearing 7 and the inner side of the transmission track 6 mesh to drive the track 6 to move. Since it is a fixed-length transmission belt, the hinge bearing 5 is pulled during the movement of the transmission track 6, thereby changing the elevation angle of the mirror support assembly.

[0048] like Figure 7 As shown, the transmission track 6 can change the heliostat's elevation angle from -90° to 90°. When the elevation angle is 0°, the heliostat is in a safe parking state, with the mirror surface parallel to the horizontal plane. When the heliostat begins operation during the day, it needs to change according to the sun's position. The elevation angle transmission assembly adjusts the elevation angle in accordance with the sun's position. When it changes towards -90°, the rotating shaft 72 rotates counterclockwise, driving the transmission track 6, and the length on the L1 side shortens. When it changes towards 90°, the rotating shaft 72 rotates clockwise, driving the transmission track 6, and the length on the L2 side shortens. Based on this driving principle, the relationship between the heliostat's elevation angle and the number of rotations of the rotating shaft can be determined:

[0049]

[0050] In the formula, L3 is half the distance between the two elevation hinge bearings 5; h is the distance from the mirror to the elevation drive bearing 7; α is the elevation angle of the heliostat; n is the number of revolutions of the elevation drive bearing 7; and d is the diameter of the elevation drive bearing 7.

[0051] like Figure 8 As shown, the direction angle transmission assembly 8 includes an insertable fixed inner core 81, a rolling element 82, a rotating outer core 83, and a rotating outer core stiffening rib 84; the insertable fixed inner core 81 is nested inside the rotating outer core 83;

[0052] The insertable fixed inner core 81 is divided into upper and lower parts. The upper part of the insertable fixed inner core 81 includes an upper cover plate 811, a lower support plate 812, and a solid column 813. The solid column 813 is fixedly connected between the upper cover plate 811 and the lower support plate 812, serving as the internal fixing body of the directional angular transmission bearing. The lower part of the insertable fixed inner core 81 includes an embedded end core column 814 and an outward protruding column 815. The lower end of the solid column 813 is fixedly connected to the embedded end core column 814, and multiple outward protruding columns 815 are evenly fixed around the embedded end core column 814, serving as the embedding body connected to the independent column base. The above components are mutually fixed into a whole.

[0053] The rotating outer core 83 includes an upper plate 831, a steel cylinder 832, and a lower plate 833. The upper part of the upper plate 831 is fixedly connected to the bearing base 73, and the lower part of the upper plate 831 is fixedly connected to the upper cover plate 811. The steel cylinder 832 is nested on the solid column 813. The inner wall of the steel cylinder 832 and the outer wall of the solid column 813 form a channel to accommodate the rolling element 82. The rolling element 82 is connected and fixed by a cage. The lower end of the steel cylinder 832 is connected to the lower plate 833. The rotating outer core stiffening rib 84 is set between the upper plate 831 and the lower plate 833 to improve the bending stiffness of the rotating outer core 83 and prevent the rotating outer core 83 from buckling during rotation and vertical load bearing. The rotating outer core 83 rotates around the insert-type fixed inner core 81 under the drive of the drive motor 10 to realize the change of the direction angle of the heliostat mirror structure during tracking.

[0054] like Figure 8 , 9 As shown, the independent column base 9 is a precast reinforced concrete column. The lower part can be embedded in the foundation to make a pipe pile. The top has a wedge-shaped groove to accommodate the insert-type fixed inner core 81. The groove and the insert-type fixed inner core 81 are interlocked. The mechanical interlocking force, frictional resistance and adhesive force between the two ensure that the insert-type fixed inner core 81 remains fixed and does not slide when the outer core 83 rotates.

[0055] like Figure 2 As shown, the mirror support plate 1 includes a face plate 11, a back plate 12, and a honeycomb core plate 13. The honeycomb core plate 13 is located between the face plate 11 and the back plate 12 and is bonded with structural adhesive. The honeycomb sandwich panel has high bending stiffness and energy absorption capacity, which can help the mirror resist surface wind pressure, reduce the vibration amplitude of the mirror, avoid mirror bending failure, and has good optical efficiency. Moreover, since the sandwich panel is an independent support structure, it can connect many sub-mirrors into a whole, which has good integrity. At the same time, the honeycomb sandwich panel has good airtightness and excellent thermal insulation performance, which reduces the heat transfer between the mirror and other components and avoids the softening of steel components due to the high temperature of the mirror. In addition, the surface of the honeycomb sandwich panel is smooth, which is conducive to the connection between the mirror and the mirror support plate 1, and the hollow structure of the honeycomb core plate has good resistance to local impact, so that the damage does not extend to the entire mirror, while reducing the self-weight of the support structure.

[0056] The connection point between the force transmission rod 2 and the mirror support plate 1 is located at the four-eighths bisector of the mirror width direction, and its length is 1 / 2 of the mirror chord length; this ensures that the surface pressure on the honeycomb core panel 13 is transmitted to the support structure through a shorter force transmission path; the function of the hinge node 3 is to ensure that the mirror performs a fixed-axis rotational motion under the drive of the elevation angle transmission component; the connection point between the Y-shaped bracket 4 and the force transmission rod 2 is located at the three-eighths bisector of the mirror width direction; this reduces the torque at the end and fixed end of the Y-shaped bracket 4. For a large mirror heliostat structure, the lever arm length of the Y-shaped bracket 4 is moderate, avoiding excessive bending moment at the base of the bracket that would result in insufficient anchoring strength. The cross-sectional dimensions of the bracket can also be reduced accordingly to lower the cost.

[0057] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the scope of protection of this invention.

Claims

1. A tower-type heliostat support, characterized in that, Including mirror support assembly, elevation angle transmission assembly and orientation angle transmission assembly (8); The mirror support assembly includes a mirror support plate (1) and a bracket structure; the mirror support plate is fixed on the bracket structure; the elevation angle transmission assembly includes an elevation angle hinge bearing (5), a transmission track (6) and an elevation angle drive bearing (7); the elevation angle hinge bearing (5) is fixed on the mirror support plate (1), the transmission track (6) is connected between the elevation angle hinge bearing (5) and the elevation angle drive bearing (7), one end of the elevation angle drive bearing (7) is connected to the bracket structure, and the other end of the elevation angle drive bearing (7) is connected to the direction angle transmission assembly (8); The elevation angle drive bearing (7) includes a rotating outer ring (71), a rotating shaft (72), and a bearing base (73); the two ends of the rotating shaft (72) are fixed on the bearing base (73), the rotating outer ring (71) is nested on the rotating shaft (72), the transmission track (6) fits against the outside of the elevation angle drive bearing (7), and the rotating outer ring (71) is connected to the Y-shaped bracket (4). The direction angle transmission assembly (8) includes an insert-type fixed inner core (81), a rolling element (82), a rotating outer core (83), and a rotating outer core stiffening rib (84); the insert-type fixed inner core (81) is nested inside the rotating outer core (83); The insertable fixing core (81) is divided into upper and lower parts. The upper part of the insertable fixing core (81) includes an upper cover plate (811), a lower support plate (812) and a solid column (813). The solid column (813) is fixedly connected between the upper cover plate (811) and the lower support plate (812). The lower part of the insertable fixing core (81) includes an embedded end core column (814) and an outward protruding column (815). The lower end of the solid column (813) is fixedly connected to the embedded end core column (814), and multiple outward protruding columns (815) are evenly fixed around the embedded end core column (814). The rotating outer core (83) includes an upper plate (831), a steel cylinder (832), and a lower plate (833); the upper part of the upper plate (831) is fixedly connected to the bearing base (73), and the lower part of the upper plate (831) is fixedly connected to the upper cover plate (811). The steel cylinder (832) is nested on the solid column (813). The inner wall of the steel cylinder (832) and the outer wall of the solid column (813) form a channel to accommodate the rolling element (82). The rolling element (82) is connected and fixed by a cage. The lower end of the steel cylinder (832) is connected to the lower plate (833). The rotating outer core stiffening rib (84) is arranged between the upper plate (831) and the lower plate (833). The lower part of the insert-type fixed inner core (81) is embedded in the groove at the top of the independent column base (9), the lower plate (833) is connected to the top of the independent column base (9), and the lower part of the independent column base (9) is fixed in the foundation.

2. The tower-type heliostat support according to claim 1, characterized in that, The support structure includes a force transmission rod (2), a hinge node (3), and a Y-shaped bracket (4); the force transmission rod (2) is fixed to the mirror support plate (1), and the Y-shaped bracket (4) is rotatably connected to the force transmission rod (2) through the hinge node (3).

3. A tower-type heliostat support according to claim 1, characterized in that, The elevation angle hinge bearing (5) includes a bearing support (51) and a rotating bearing (52); the bearing support (51) is fixed to the mirror support plate (1), the rotating bearing (52) rotates relative to the bearing support (51), and the rotating bearing (52) is in contact with the transmission track (6).

4. A tower-type heliostat support according to claim 1, characterized in that, The transmission track (6) is a fixed-length conveyor belt. The transmission track (6) can realize the change of the heliostat elevation angle from -90° to 90°. The relationship between the heliostat elevation angle and the number of rotations of the rotating shaft is as follows: （1） In the formula, α is half the distance between the two elevation hinge bearings (5); h is the distance from the mirror to the elevation drive bearing (7); α is the elevation angle of the heliostat; n is the number of revolutions of the elevation drive bearing (7); d is the diameter of the elevation drive bearing (7).

5. A tower-type heliostat support according to claim 1, characterized in that, The mirror support plate (1) includes a front panel (11), a back panel (12) and a honeycomb core panel (13); the honeycomb core panel (13) is located between the front panel (11) and the back panel (12) and is bonded with an adhesive.

6. A tower-type heliostat support according to claim 2, characterized in that, The connection point between the force transmission rod (2) and the mirror support plate (1) is located at the four-equal bisector of the mirror width direction, and its length is 1 / 2 of the mirror chord length; the connection point between the Y-shaped bracket (4) and the force transmission rod (2) is located at the three-equal bisector of the mirror width direction.

7. A tower-type heliostat support according to claim 6, characterized in that, A drive motor (10) is installed on an independent column base (9).

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