Heliostat support assembling auxiliary platform

Abstract

The utility model belongs to the technical field of heliostats, and particularly relates to a heliostat support assembling auxiliary platform which comprises a supporting column used for installing a heliostat, a first motor connected to one end of a load-bearing bearing, and a second motor connected to the other end of the load-bearing bearing. A balance mechanism for keeping the heliostat stable is arranged between the supporting column and the heliostat. The balance mechanism comprises stabilizer bars and positioning pieces, wherein the stabilizer bars are symmetrically arranged on the two sides of the supporting column, one ends of the stabilizer bars are connected with the supporting column in a sliding mode, the other ends of the stabilizer bars are hinged to the heliostat, and the positioning pieces are arranged in the supporting column and used for positioning the stabilizer bars in weather with large wind power. By introducing the balance mechanism, the problem that the mirror surface of the heliostat shakes in severe weather such as strong wind can be effectively prevented, meanwhile, by arranging the positioning piece in the supporting column, the stabilizer bar can be positioned in weather with strong wind, the balance of the heliostat is further guaranteed, condensation deviation caused by the wind is reduced, and the service life of the heliostat is prolonged. And the solar energy collection efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to heliostat technical field, concretely relates to a kind of heliostat support assembly auxiliary platform. BACKGROUND

[0002] Heliostat is a kind of condenser device used in tower type solar thermal power station, it focuses after reflecting sunlight to heat absorption device fixed at a height in tower.Heliostat is generally composed of reflector, support structure, transmission device and control system.When the size of reflector is larger, support rod needs to be higher, so that reflector surface does not contact ground, at the same time, the weight borne by support rod becomes very large, therefore, support rod needs to bear larger weight while being higher, and the weight is off-center, which puts forward high requirement to support rod, traditional single support rod heliostat completely relies on a point in the center of reflector surface, is supported by spin axis, when there is wind, the shaking of reflector surface is more serious, and it is easy to cause condensing deviation, especially when encountering rain, snow, storm and other natural weather, it can cause the serious off-center of gravity of support rod, thereby seriously affecting the stability of heliostat, when the size of reflector surface is larger, the situation will be more serious. SUMMARY

[0003] In view of the above problems, the utility model aims at providing a kind of heliostat support assembly auxiliary platform, to solve the problems raised in the above background.

[0004] To achieve the above purpose, the utility model adopts the technical scheme: a kind of heliostat support assembly auxiliary platform, including support column for installing heliostat and the top thereof is rotatably connected with heliostat by bearing support and the first motor for driving heliostat to adjust azimuth angle is connected at one end of bearing support, balance mechanism for maintaining the stability of heliostat is arranged between support column and heliostat, the balance mechanism includes stabilizing bar symmetrically arranged on both sides of support column and slidably connected with support column at one end and hinged with heliostat at the other end, and positioning member arranged in support column and used for positioning stabilizing bar in weather with large wind force to ensure the balance of heliostat.

[0005] The utility model has the beneficial effects that: by introducing balance mechanism, especially the stabilizing bar arranged on both sides of support column, one end of the stabilizing bar is slidably connected with support column, and the other end is hinged with heliostat, which can effectively prevent the serious shaking problem of heliostat surface in severe weather such as strong wind, the design of stabilizing bar provides additional support for heliostat, which helps to maintain the stability of heliostat under adverse conditions, at the same time, the positioning member arranged in support column can position stabilizing bar in weather with large wind force, further ensuring the balance of heliostat, which helps to reduce the condensing deviation caused by wind force and improve the collection efficiency of solar energy.

[0006] In order to keep the heliostat stable when the wind is strong:

[0007] As a further improvement of the above technical solution: the positioning member includes a groove opened in the middle of the support column and having a second motor arranged inside, and a plurality of positioning blocks fixedly arranged on the output shaft of the second motor and used for fixing the position of the stabilizing rod. When the heliostat is reset to the horizontal state, the end of the stabilizing rod away from the heliostat is just in the same horizontal plane with the positioning blocks.

[0008] The improvement has the beneficial effect that: the wind sensor is arranged on the heliostat, and the wind sensor is electrically connected with the first motor and the second motor. When the wind sensor senses that the wind reaches or exceeds the preset wind value, the first motor is started to drive the heliostat to rotate and restore the horizontal state, and the second motor is started to drive the positioning blocks to rotate clockwise or counterclockwise by 90 degrees, so that the positioning blocks contact with the stabilizing rod and apply a horizontal force away from the motor to the stabilizing rod to fix the position of the stabilizing rod. The positioning blocks are at least one, which can increase the contact area between the positioning blocks and the stabilizing rod, thereby keeping the heliostat stable.

[0009] In order to facilitate the positioning of the positioning blocks on the stabilizing rod:

[0010] As a further improvement of the above technical solution: the support column is symmetrically provided with a sliding groove on both sides for the sliding of the stabilizing rod, and the groove is in communication with the sliding groove.

[0011] The improvement has the beneficial effect that: when the heliostat is adjusted in the azimuth angle, the stabilizing rod is driven to slide along the sliding groove. The sliding groove is cross-shaped, and the cross-section of the end of the stabilizing rod away from the heliostat is also cross-shaped, which can prevent the stabilizing rod from slipping out of the sliding groove. In addition, the sliding groove is in communication with the groove, so that when the second motor drives the positioning blocks to rotate to the sliding groove, the positioning blocks just abut against the stabilizing rod, which facilitates the positioning of the positioning blocks on the stabilizing rod.

[0012] In order to make the positioning blocks apply a certain degree of external force to the stabilizing rod and better fix the heliostat:

[0013] As a further improvement of the above technical solution: the length of the positioning blocks is greater than the distance between the two ends of the stabilizing rod away from the heliostat.

[0014] The improvement has the beneficial effect that: when the second motor drives the positioning blocks to rotate to the sliding groove, the positioning blocks can abut against the stabilizing rod, so that the positioning blocks can apply a certain degree of external force to the stabilizing rod and better fix the heliostat.

[0015] In order to facilitate the rotation of the positioning blocks to abut against the stabilizing rod and rotate away from the stabilizing rod:

[0016] As a further improvement of the above technical solution: the side of the positioning block away from the motor is a curved end.

[0017] The improvement has the beneficial effect that: in order to facilitate the second motor to drive the positioning block to rotate to abut against the stabilizing rod, the two ends of the positioning block are both provided with a curved surface, the curved surface is smooth without edges and corners, and the positioning block can be conveniently rotated to abut against the stabilizing rod and rotate away from the stabilizing rod.

[0018] In order to facilitate the adjustment of the elevation angle of the heliostat:

[0019] As a further improvement of the above technical solution: the bottom of the support column is provided with a base, the base is hingedly connected with the support column through a hinge piece, and a hydraulic cylinder for adjusting the elevation angle of the heliostat is arranged between the base and the support column.

[0020] The improvement has the beneficial effect that: the bottom of the support column is provided with a load bearing bearing, a strip-shaped groove is formed in the inside of the support column, a fixed shaft is arranged in the strip-shaped groove and rotationally connected with the load bearing bearing, and the end of the hydraulic cylinder away from the base is hingedly connected with the support column; when the hydraulic cylinder performs extension or expansion movement, the support column can be driven to rotate along the fixed shaft to adjust the elevation angle, i.e. the movement in the elevation angle direction.

[0021] In order to further improve the stability of the heliostat:

[0022] As a further improvement of the above technical solution: the support column is hingedly connected with a stabilizing column on the opposite side of the hydraulic cylinder, and the bottom of the stabilizing column is slidingly connected with the base.

[0023] The improvement has the beneficial effect that: a limiting groove with a certain length is formed in the base, and a fixed shaft is also arranged in the limiting groove; when the hydraulic cylinder drives the support column to adjust the elevation angle, the bottom of the stabilizing column is driven to slide along the limiting groove and the fixed shaft, and the stability of the heliostat can be further improved. BRIEF DESCRIPTION OF DRAWINGS

[0024] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0025] Figure 2 It is a schematic diagram of the side view structure of the utility model;

[0026] Figure 3 It is a schematic diagram of the rear view cross-sectional structure of the utility model;

[0027] Figure 4 It is a schematic diagram of the side view cross-sectional structure of the utility model;

[0028] Figure 5 It is a schematic diagram of the top view cross-sectional structure of the utility model.

[0029] In the figure: 1, heliostat; 2, load bearing; 3, support column; 4, first motor; 5, stabilizing rod; 6, second motor; 7, groove; 8, positioning block; 9, sliding groove; 10, curved end; 11, base; 12, strip-shaped groove; 13, fixed shaft; 14, hydraulic cylinder; 15, stabilizing column; 16, limiting groove. DETAILED DESCRIPTION

[0030] In order for those skilled in the art to better understand the technical scheme of the utility model, the utility model will be described in detail below in combination with the drawings, and the description in this part is only exemplary and explanatory, and should not have any limiting effect on the protection scope of the utility model.

[0031] The existing heliostat 1 support assembly auxiliary platform mainly comprises a heliostat 1 and a support for installing the heliostat 1, for small heliostats 1, the support is generally a single support column 3 rod, the movement of the heliostat 1 in the direction of rotation is realized by setting a load bearing 2 at the top of the support column 3, similarly, for the adjustment of the elevation angle of the heliostat 1, a load bearing 2 is set at the bottom end of the support column 3 again, and a motor, such as a stepping motor or a servo motor, is set at both load bearings 2, which is the main power for driving the heliostat 1 to realize the elevation angle and rotation movement of the heliostat 1, in use, necessary sensors, such as photoelectric sensors and angle sensors, are installed on the heliostat 1 to monitor the position and state of the heliostat 1 in real time, according to the position of the sun and the current position of the heliostat 1, the required elevation angle and rotation angle are calculated, the sensors installed on the heliostat 1 are electrically connected with the driving motor and the control system, the control system, such as a PLC or a single-chip microcomputer, receives the sensor data, and controls the driving motor to realize the elevation angle and rotation movement of the heliostat 1 according to the angle value calculated by the tracking algorithm, the above is the introduction of the existing heliostat 1 support assembly auxiliary platform.

[0032] From the above, the existing heliostat 1 support assembly auxiliary platform has the following defects when in use: when the size of the reflector increases, the support rod needs to be higher to prevent the reflector from contacting the ground, and the weight borne by the support rod becomes very large. Therefore, the support rod needs to be higher and bear a larger weight, and the weight is offset. This puts high requirements on the support rod. The traditional single support rod heliostat 1 completely relies on a point at the center of the reflector to be supported by the spin shaft. When there is wind, the mirror surface shakes severely, which easily causes light convergence deviation, especially when encountering rain, snow, and strong wind, the center of gravity of the heliostat 1 is seriously offset from the support rod, thereby seriously affecting the stability of the heliostat 1. When the size of the mirror surface increases, the situation becomes more serious. In the prior art, a wind sensor is arranged on the heliostat 1 to monitor the wind value. When the value exceeds the preset wind value of the control system, the motor is started to drive the heliostat 1 to return to the horizontal state, thereby reducing the influence of wind on the heliostat 1. However, due to the large area of the heliostat 1 and the limited range of contact between the support rod and the heliostat 1, the stability of the heliostat 1 cannot be well guaranteed. Even when the wind does not exceed the preset wind value, as the heliostat 1 rotates and the elevation angle moves, the support rod needs to bear the offset force, which also increases the probability of the heliostat 1 being blown over. Based on the above problems, the present application uses the following improvement mode for solution.

[0033] As shown in Figures 1-5 , a heliostat support assembly auxiliary platform includes a support column 3 for installing a heliostat 1 and rotatingly connected to the heliostat 1 at the top through a load bearing bearing 2, and a first motor 4 connected at one end of the load bearing bearing 2 and used to drive the heliostat 1 to adjust the azimuth angle. A balance mechanism for maintaining the stability of the heliostat 1 is arranged between the support column 3 and the heliostat 1. The balance mechanism includes stable rods 5 symmetrically arranged on both sides of the support column 3 and slidably connected at one end to the support column 3 and hingedly connected at the other end to the heliostat 1, and a positioning member arranged inside the support column 3 and used to position the stable rods 5 in weather with strong wind to ensure the balance of the heliostat 1. By introducing the balance mechanism, especially the stable rods 5 arranged on both sides of the support column 3, one end of the stable rods 5 is slidably connected to the support column 3, and the other end is hingedly connected to the heliostat 1, which can effectively prevent the heliostat 1 from shaking severely in strong wind and other harsh weather. The design of the stable rods 5 provides additional support for the heliostat 1, which helps to maintain the stability of the heliostat 1 under adverse conditions. At the same time, by arranging the positioning member inside the support column 3, the stable rods 5 can be positioned in weather with strong wind, further ensuring the balance of the heliostat 1. This helps to reduce the light convergence deviation caused by wind and improve the collection efficiency of solar energy.

[0034] Further, as shown in Figures 4-5As shown, the positioning member includes a groove 7 opened in the middle of the support column 3 and the second motor 6 is arranged inside the groove 7, and a plurality of positioning blocks 8 are fixedly arranged on the output shaft of the second motor 6 and are used for fixing the position of the stabilizing rod 5. When the heliostat 1 is reset to the horizontal state, the end of the stabilizing rod 5 away from the heliostat 1 is just in the same horizontal plane as the positioning block 8. In combination with the prior art, the wind sensor is also arranged on the heliostat 1 in the technical scheme, and the wind sensor is electrically connected with the first motor 4, the second motor 6 and the hydraulic cylinder 14. When the wind sensor senses that the wind force reaches or exceeds the preset wind force value of the control system, the first motor 4 and the hydraulic cylinder 14 are started to move, so as to drive the heliostat 1 to perform the self-rotation-elevation angle movement, so that the heliostat 1 is restored to the horizontal state, and at the same time, the stabilizing rod 5 is driven to slide along the side wall of the support column 3, and the second motor 6 is started to drive the positioning block 8 to rotate by 90 degrees clockwise or counterclockwise, so that the positioning block 8 is in contact with the stabilizing rod 5 and exerts a horizontal force away from the motor on the stabilizing rod 5, so that the position of the stabilizing rod 5 is fixed, thereby the stability of the heliostat 1 can be maintained, and it is not necessary to manually adjust the position of the heliostat 1.

[0035] Further, as shown in Figure 5 The two sides of the support column 3 are symmetrically provided with a sliding groove 9 for sliding of the stabilizing rod 5. The groove 7 is communicated with the sliding groove 9. When the heliostat 1 is adjusted in the azimuth angle self-rotation direction, the stabilizing rod 5 is driven to slide along the sliding groove 9. The sliding groove 9 is in a cross shape, and the cross section of the end of the stabilizing rod 5 away from the heliostat 1 is also in a cross shape, so that the stabilizing rod 5 can be prevented from sliding off the sliding groove 9. The sliding groove 9 is communicated with the groove 7. When the second motor 6 drives the positioning block 8 to rotate to the sliding groove 9, the positioning block 8 is just in contact with the stabilizing rod 5, so that the positioning block 8 can conveniently position the stabilizing rod 5.

[0036] Further, as shown in Figure 5 The length of the positioning block 8 is greater than the distance between the two ends of the stabilizing rod 5 away from the heliostat 1. When the second motor 6 drives the positioning block 8 to rotate to the sliding groove 9, the positioning block 8 can be in contact with the stabilizing rod 5. For example, the distance between the two stabilizing rods 5 is 2, and the length of the positioning block 8 is 3-4, so that the positioning block 8 can exert an external force of a certain degree of force on the stabilizing rod 5, and the heliostat 1 can be better fixed.

[0037] Further, as shown in Figure 5 The side of the positioning block 8 away from the motor is a curved end 10. In order to conveniently drive the positioning block 8 to rotate to be in contact with the stabilizing rod 5 by the second motor 6, both ends of the positioning block 8 are provided in a curved shape, for example, a semicircular arc shape. The curved surface is smooth and has no edges and corners, so that the positioning block 8 can be conveniently rotated to be in contact with the stabilizing rod 5 and rotated away from the stabilizing rod 5.

[0038] Further, as shown in Figures 1-4As shown, the bottom of the support column 3 is provided with a base 11, the base 11 is hinged with the support column 3 through a hinge, and a hydraulic cylinder 14 for adjusting the elevation angle of the heliostat 1 is arranged between the base 11 and the support column 3, the bottom of the support column 3 is provided with a load bearing bearing 2, a strip-shaped slot 12 is formed in the inside of the support column 3, a fixed shaft 13 rotatingly connected with the load bearing bearing 2 is arranged in the strip-shaped slot 12, and the end of the hydraulic cylinder 14 away from the base 11 is hinged with the support column 3, when the control system drives the hydraulic cylinder 14 to perform extension or unfolding movement, the support column 3 can be driven to rotate along the fixed shaft 13 to perform the elevation angle adjustment, i.e. the movement in the elevation direction.

[0039] Further, as shown in the figure, Figures 1-4 As shown, the support column 3 is hinged with a stabilizing column 15 on the opposite side of the hydraulic cylinder 14, the bottom of the stabilizing column 15 is slidingly connected with the base 11, a length-limiting slot 16 is formed in the base 11, and a fixed shaft 13 is arranged in the length-limiting slot 16, when the hydraulic cylinder 14 drives the support column 3 to perform the elevation angle adjustment, the bottom of the stabilizing column 15 is driven to slide along the length-limiting slot 16 and the fixed shaft 13, and the stability of the heliostat 1 can be further improved.

[0040] It should be noted that, in this document, the terms "comprising", "containing" or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device that includes a series of elements not only includes those elements, but also includes other elements not explicitly listed, or inherent to such a process, method, article or device.

[0041] The principle and implementation mode of the present application are described by using specific examples in this document, and the above example is only used to help understand the method and core idea of the present application. The above description is only the preferred implementation mode of the present application, and it should be pointed out that, due to the limited expression, there are infinite specific structures objectively, and for ordinary skilled persons in the technical field, some improvements, decorations or changes can be made without departing from the principle of the present application, and the above technical features can be combined in a proper way; the improvements, decorations, changes or combinations, or the direct application of the inventive concept and technical scheme to other occasions without improvement, should be regarded as the protection scope of the present application.

Claims

1. A heliostat support assembly auxiliary platform, comprising a support column (3) for mounting a heliostat (1) and having its top rotatably connected with the heliostat (1) through a load bearing bearing (2), and a first motor (4) connected at one end of the load bearing bearing (2) and used to drive the heliostat (1) to adjust the azimuth angle, characterized in that: The support column (3) and the heliostat (1) are provided with a balance mechanism for maintaining the stability of the heliostat (1), which comprises a stabilizing rod (5) symmetrically arranged on both sides of the support column (3) and slidably connected to the support column (3) at one end and hingedly connected to the heliostat (1) at the other end, and a positioning member arranged inside the support column (3) and used for positioning the stabilizing rod (5) to ensure the balance of the heliostat (1) in weather with strong wind. ​ 2. A heliostat support assembly aid platform according to claim 1, wherein: The positioning member comprises a groove (7) opened in the middle of the support column (3) and having a second motor (6) arranged inside, and a plurality of positioning blocks (8) fixedly arranged on the output shaft of the second motor (6) and used for fixing the position of the stabilizing rod (5), when the heliostat (1) is reset to the horizontal state, the end of the stabilizing rod (5) away from the heliostat (1) is just on the same horizontal plane with the positioning blocks (8).

3. A heliostat support assembly aid platform according to claim 2, wherein: The support column (3) is symmetrically provided with a sliding groove (9) on both sides for the sliding of the stabilizing rod (5), and the groove (7) is in communication with the sliding groove (9).

4. A heliostat support assembly aid platform according to claim 3, wherein: The groove (7) is circular, and the length of the positioning block (8) is slightly greater than the diameter of the groove (7).

5. A heliostat support assembly aid platform according to claim 4, wherein: The side of the positioning block (8) away from the motor is a curved end (10).

6. A heliostat support assembly aid platform according to claim 1, wherein: The bottom of the support column (3) is provided with a base (11), the base (11) is hingedly connected to the support column (3) through a hinge member, and a hydraulic cylinder (14) for adjusting the elevation angle of the heliostat (1) is arranged between the base (11) and the support column (3).

7. A heliostat support assembly aid platform according to claim 6, wherein: The support column (3) is hingedly connected to a stabilizing column (15) on the opposite side of the hydraulic cylinder (14), and the bottom of the stabilizing column (15) is slidably connected to the base (11).

Images