Heliostat support and heliostat system

Abstract

The utility model discloses a heliostat support and a heliostat system, and relates to the technical field of solar photo-thermal application, and the heliostat support comprises an installation base column, a stand column, a supporting assembly, a horizontal driving device and a vertical driving device. One end of the stand column is rotationally connected with the mounting base column, and the supporting assembly is used for supporting the heliostat; the horizontal driving device comprises a first rotary swinging hydraulic cylinder, and the vertical driving device comprises a second rotary swinging hydraulic cylinder; the supporting assembly comprises a main shaft; a cylinder body of the first rotary swing hydraulic cylinder is fixed on the mounting base column, and a rotary body of the first rotary swing hydraulic cylinder is coaxially connected with the stand column; a cylinder body of the second rotary swing hydraulic cylinder is fixed to the other end of the stand column, and the stand column extends in the radial direction of a rotary body of the second rotary swing hydraulic cylinder. The main shaft is coaxially connected with a rotary body of the second rotary swing hydraulic cylinder; the supporting assembly is hinged to the other end of the stand column through a spindle. The heliostat support is strong in driving force, and cost can be saved through batch use.

Description

Technical Field

[0001] The utility model relates to the technical field of solar thermal application, and in particular to a heliostat bracket and a heliostat system. Background Art

[0002] In daily use, heliostats need to track the sun by adjusting the bracket at two angles, horizontally and vertically. To achieve this function, the bracket is usually equipped with an electric drive device that can adjust the angle in two directions. These electric drives can be worm gear drives or electric push rod drives. In daily use, it is found that such electric drives have insufficient driving force in some cases, and the use of such electric drives in batches in a heliostat field faces the problem of high cost. Utility Model Content

[0003] The utility model aims to solve one of the technical problems in the related art to a certain extent. To this end, the utility model provides a heliostat bracket and a heliostat system.

[0004] In order to achieve the above-mentioned object, the utility model adopts the following technical solutions in the first aspect:

[0005] A heliostat support, comprising a mounting base column, a column, a support assembly, a horizontal drive device and a vertical drive device; one end of the column is rotatably connected to the mounting base column, and the support assembly is used to support the heliostat; the horizontal drive device comprises a first rotary swing hydraulic cylinder, and the vertical drive device comprises a second rotary swing hydraulic cylinder; the support assembly comprises a main shaft;

[0006] The cylinder body of the first rotary swing hydraulic cylinder is fixed on the mounting base column, the rotary body of the first rotary swing hydraulic cylinder is coaxially connected with the column, and the first rotary swing hydraulic cylinder is used to drive the column to rotate around the axis of the column;

[0007] The cylinder body of the second rotary swing hydraulic cylinder is fixed to the other end of the column, and the column extends in the radial direction of the rotating body of the second rotary swing hydraulic cylinder; the main shaft is coaxially connected to the rotating body of the second rotary swing hydraulic cylinder, and the second rotary swing hydraulic cylinder is used to drive the main shaft to rotate around the axis of the main shaft; the support assembly is hinged to the other end of the column through the main shaft.

[0008] Optionally, the bottom of the cylinder body of the first rotary and swinging hydraulic cylinder is flange-connected to the mounting base column; the rotating body of the first rotary and swinging hydraulic cylinder is flange-connected to the lower end of the column at the end opposite to the bottom of the cylinder body.

[0009] Optionally, a mounting seat plate is provided on the side of the cylinder body of the second rotary swing hydraulic cylinder; a mounting top plate matching the mounting seat plate is provided at the upper end of the column; and the mounting seat plate and the mounting top plate are connected via fasteners.

[0010] Optionally, the cylinder body of the second rotary swing hydraulic cylinder has two opposite openings, and the rotating body of the second rotary swing hydraulic cylinder has two opposite connecting ends and through holes respectively connecting the two connecting ends, and the connecting ends are respectively located in the two openings of the cylinder body; the main shaft is arranged in the through holes and is circumferentially fixed to the second rotary swing hydraulic cylinder through a key connection.

[0011] Optionally, the extension direction of the through hole is in the same direction as the rotation center of the rotating body.

[0012] Optionally, two limit assemblies are further provided on the main shaft, and the two limit assemblies are respectively located at the two connecting ends, so as to axially fix the main shaft and the rotating body of the second rotary swing hydraulic cylinder.

[0013] Optionally, the limiting assembly includes a baffle and a U-shaped bolt; the baffle is provided with a screw hole for the U-shaped bolt to pass through; the main shaft passes between the two bolt heads of the U-shaped bolt and the diameter of the main shaft matches the distance between the two bolt heads.

[0014] Optionally, it also includes a hydraulic station; the hydraulic station is connected to the pipelines of the first rotary swing hydraulic cylinder and the second rotary swing hydraulic cylinder respectively.

[0015] Optionally, one of the first rotary swing hydraulic cylinder and the second rotary swing hydraulic cylinder is one of a rotary hydraulic cylinder and a swing hydraulic cylinder.

[0016] Optionally, the support assembly further includes a plurality of cross beams disposed on the main shaft, and the plurality of cross beams intersect with the main shaft to form a mounting surface for fixing the heliostat.

[0017] The utility model further provides a heliostat system in a second aspect. The heliostat system comprises a heliostat bracket and a heliostat. The heliostat bracket is the heliostat bracket in the first aspect. The heliostat is arranged on the support assembly.

[0018] The heliostat bracket provided by the utility model has the following effects:

[0019] 1. Both the horizontal drive device and the vertical drive device are angular motion devices, that is, circular motion or arc reciprocating motion. The thrust is large and the angle of movement of the drive device is the adjustment angle of the heliostat. Compared with the existing push rod solution, there is no need to use a transmission mechanism to convert a straight line into a circle. Not only is the structure simplified, but there is no conversion efficiency, and it can also avoid the situation where the angle between the force arm and the push rod is small, resulting in a very short effective force arm.

[0020] 2. Both the horizontal drive device and the vertical drive device are angular motion devices with a wide adjustment range. Depending on the usage, they can rotate from 0 to 360 degrees, or even more than 360 degrees.

[0021] 3. The vertical drive device and the first hydraulic push rod are both hydraulic drive devices and can share the same hydraulic station. Compared with drive devices with different structures, the heliostat of this solution can reduce costs and facilitate maintenance when adopted on a large scale.

[0022] These features and advantages of the utility model will be disclosed in detail in the following specific embodiments and drawings. The best implementation or means of the utility model will be fully presented in conjunction with the drawings, but it is not a limitation of the technical solution of the utility model. In addition, these features, elements and components appearing in each of the following texts and drawings are multiple, and are marked with different symbols or numbers for convenience, but all represent components with the same or similar structure or function. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The utility model is further described below in conjunction with the accompanying drawings:

[0024] Figure 1 FIG. 1 is an exploded view of the heliostat support and the heliostat in one embodiment.

[0025] Figure 2 FIG. 4 is a schematic diagram of the structure of a heliostat support according to an embodiment.

[0026] Figure 3 The figure is a schematic diagram of the structure of the mounting base column, the first rotary swing hydraulic cylinder, the column and the second rotary swing hydraulic cylinder on the heliostat support in one embodiment.

[0027] Figure 4a Detailed description of the invention The figure is an exploded view of the position limiting assembly in one embodiment.

[0028] Figure 4b This is a schematic diagram of the structure in which the limit assembly is installed on the main shaft in one embodiment (the support assembly on the main shaft and the second rotary swing hydraulic cylinder are not shown).

[0029] Figure 5The figure is a schematic diagram of the pipeline connection of the hydraulic station, the first rotary swing hydraulic cylinder and the second rotary swing hydraulic cylinder in one embodiment.

[0030] Among them, 100, installation base column; 200, column; 210, installation top plate; 300, support assembly; 310, main shaft; 320, beam; 400, first rotary swing hydraulic cylinder; 500, second rotary swing hydraulic cylinder; 510, installation seat plate; 520, through hole; 530, limit assembly; 531, baffle; 532, U-bolt; 600, hydraulic station; 700, heliostat. DETAILED DESCRIPTION

[0031] The following is a detailed description of embodiments of the present invention, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments in the implementation manner are intended to be used to explain the present invention and should not be construed as limiting the present invention.

[0032] References to "one embodiment" or "an example" or "an example" in this specification mean that a particular feature, structure, or characteristic described in conjunction with the embodiment itself may be included in at least one embodiment disclosed in the present utility model. The appearance of the phrase "in one embodiment" in various places in the specification does not necessarily refer to the same embodiment.

[0033] In the existing heliostats using electric drive devices, the horizontal angle adjustment is generally driven by a motor and a worm gear. Although the worm gear has a self-locking function and can keep the position unchanged without power supply, which is very important in the use of heliostats, the cost of using a motor and a worm gear as a horizontal direction adjustment device for heliostats is relatively high, especially when a large number of heliostats are used in a mirror field.

[0034] The vertical angle adjustment of the heliostat can be driven by a motor-driven worm gear or directly by an electric push rod. Since the electric push rod is a linear motion, it is a linear drive. Although its cost is lower than that of the worm gear, it is necessary to increase the lever arm when converting the linear motion into the rotational motion. When the angle between the lever arm and the electric push rod is relatively small, the effective lever arm is very short, resulting in extremely low efficiency. Therefore, a large-tonnage electric push rod is required to meet the demand, which will undoubtedly increase the cost.

[0035] Especially when two different driving mechanisms are used for adjusting the horizontal angle and the vertical angle respectively, different maintenance requirements are required, which will increase the workload of operation and maintenance.

[0036] Example:

[0037] like Figure 1 and Figure 2 As shown, a heliostat support includes a mounting base column 100, a column 200, a support assembly 300, a horizontal driving device and a vertical driving device.

[0038] The horizontal drive device includes a first rotary swing hydraulic cylinder 400, and the vertical drive device includes a second rotary swing hydraulic cylinder 500. The first rotary swing hydraulic cylinder 400 and the second rotary swing hydraulic cylinder 500 are angular motion drive mechanisms, that is, they can drive the target to rotate or reciprocate within a certain angle range.

[0039] When the angular drive mechanism is a rotary hydraulic cylinder, it can drive the target to rotate, and the rotation angle can exceed 360 degrees; when the angular drive mechanism is a swing hydraulic cylinder, it can drive the target to swing back and forth, and the swing angle is within 360 degrees. Whether it is rotation or swing, technicians in this field can flexibly choose according to the situation, and there is no limitation here.

[0040] The installation base is usually a column or a stand erected on the ground, and is mostly a tubular structure, such as a round tube. The lower end of the installation base column 100 is used to be inserted into the ground or fixed to the installation base buried in the ground, and the upper end of the installation base column 100 is used to be fixed to the first rotary swing hydraulic cylinder 400. The output end of the first rotary swing hydraulic cylinder 400 faces upward, and the lower end of the column 200 is rotatably connected to the installation base column 100 through the first rotary swing hydraulic cylinder 400.

[0041] The first rotary swing hydraulic cylinder 400 includes a first cylinder body and a first rotary body, wherein the first cylinder body has a cylindrical cavity, an opening connected to the cylindrical cavity, and a circular flange. The circular flange and the opening are located on both sides of the cylinder body in the axial direction, the first rotary body is rotatably arranged in the cylindrical cavity, and one end of the first rotary body in the axial direction is located at the opening as the output end of the first rotary swing hydraulic cylinder 400. In this embodiment, the first cylinder body is vertically arranged, its circular flange is located at the bottom of the first cylinder body, and its opening is located above the first cylinder body and arranged upward.

[0042] The upper end of the mounting base column 100 also has a circular flange, which is arranged horizontally. The circular flange at the bottom of the first cylinder body and the circular flange at the upper end of the mounting base column 100 are fixed by a plurality of threaded fasteners.

[0043] The column 200 is erected on the mounting base column 100, that is, the extension direction of the column 200 is the same as the extension direction of the mounting base column 100 and the two are collinear, or the two are coaxially connected through the first rotary swing hydraulic cylinder 400. The column 200 can be a cylinder or a square column, and the shape is not limited. In this embodiment, a cylinder is used as an example.

[0044] The lower end of the column 200 is also connected to the first rotating body through a pair of flanges, so that the first rotary swing hydraulic cylinder 400 can drive the column 200 to rotate around its own axis, thereby driving the support assembly 300 at the upper end of the column 200 to rotate horizontally.

[0045] The support assembly 300 is used to support the heliostat 700. Specifically, the support assembly 300 includes a main shaft 310 and a plurality of beams 320 disposed on the main shaft 310, wherein the plurality of beams 320 intersect with the main shaft 310 to form a mounting surface for fixing the heliostat 700. The plurality of beams 320 are spaced and arranged in parallel on the main shaft 310. The main shaft 310 is connected to the middle of the beams 320, and the lengths of the beams 320 can be almost equal in two sections, so that after the heliostat 700 is installed on the support assembly 300, the center of gravity of the heliostat 700 (in the length direction of the beams 320) can be concentrated on the main shaft 310, and will not deviate too much from the main shaft 310.

[0046] The upper end of the column 200 is provided with a mounting top plate 210, and the mounting top plate 210 is arranged horizontally. The second rotary swing hydraulic cylinder 500 is arranged horizontally, that is, the axial direction of the second rotary hydraulic cylinder is arranged horizontally. The second rotary swing hydraulic cylinder 500 includes a second cylinder body and a second rotary body. The side of the second cylinder body is provided with a mounting seat plate 510 matching the mounting top plate 210, and the mounting seat plate 510 is connected to the mounting top plate 210 by fasteners, such as threaded fasteners.

[0047] By setting a horizontal mounting top plate 210 and a horizontally arranged second rotary swing hydraulic cylinder 500, that is, the column 200 extends in the radial direction of the second rotating body, the pressure on the mounting top plate 210 is evenly distributed along the axial direction of the second rotary swing hydraulic cylinder 500 in a stationary state, and the pressure can act almost vertically downward on the column 200 to avoid torque.

[0048] Furthermore, the main shaft 310 of the support assembly 300 is also arranged horizontally. One end of the main shaft 310 is coaxially connected to the second rotating body, so that the support assembly 300 is hinged to the other end of the column 200 through the main shaft 310. The second rotary swing hydraulic cylinder is used to drive the main shaft to rotate around the axis of the main shaft, that is, the second rotary swing hydraulic cylinder 500 can drive the main shaft 310 and drive the support assembly 300 to rotate relative to the column 200 with the main shaft 310 as the axis.

[0049] In one embodiment, the second cylinder has a cylindrical cavity and two openings connected to the cavity, and the two openings are arranged opposite to each other in the axial direction of the second cylinder. The second rotating body is rotatably arranged in the cavity, and the second rotating body has two opposite connecting ends, and the two connecting ends are respectively located in the two opposite openings of the second cylinder.

[0050] A through hole 520 is provided between the two connecting ends of the second rotating body (see Figure 3 ), the main shaft 310 is passed through the through hole 520 and is circumferentially fixed to the second rotary swing hydraulic cylinder 500 by a key connection. In this embodiment, the middle of the main shaft 310 is keyed to the through hole 520, and the length of the main shaft 310 exposed at both ends of the second rotary body is almost equal, so that in the axial direction of the main shaft 310, the center of gravity of the heliostat 700 can fall on the second rotary body, especially on the middle of the column 200, so that the gravity of the support assembly 300 and the heliostat 700 can act vertically on the column 200 without generating torque.

[0051] like Figure 2 and 3 As shown, the main shaft 310 is a square shaft with a square cross section, and the shape of the through hole 520 is adapted to the cross-sectional shape of the square shaft. Since the main shaft 310 is a square shaft and the through hole 520 is a square hole, it is equivalent to a square key connection between the two. Alternatively, the main shaft 310 is a circular shaft, and only a rectangular (square) spline is set in the middle position of the main shaft 310 to cooperate with the through hole 520.

[0052] Specifically, the extension direction of the through hole 520 is in the same direction as the rotation center of the rotating body, that is, the two are colinear. In this way, no matter what angle the support assembly 300 rotates to, the axis of the main shaft 310 and the axis of the column 200 can be located in the same vertical plane as much as possible, avoiding the support assembly 300 and the heliostat 700 from generating additional torque on the column 200.

[0053] In order to prevent the main shaft 310 and the second rotating body from axially displacing after being fixed, thereby causing the center of gravity of the support assembly 300 to deviate from the center of the column 200 in the axial direction of the main shaft 310. In one embodiment, two stopper assemblies 530 are further provided on the main shaft 310.

[0054] like Figure 4a and Figure 4b As shown, the limiting assembly 530 includes a baffle 531 and a U-bolt 532. The baffle 531 is provided with screw holes for two bolt heads of the U-bolt 532 to pass through, and the spindle 310 passes between the two bolt heads of the U-bolt 532, and the diameter of the spindle 310 matches the distance between the two bolt heads.

[0055] The two limiting assemblies 530 are respectively located at the two connecting ends, that is, after the bolt head of the U-shaped bolt 532 is tightened with the baffle 531, the baffles 531 in the two limiting assemblies 530 are respectively clamped on both sides of the second rotating body to axially fix the main shaft 310 and the rotating body of the second rotary swing hydraulic cylinder 500.

[0056] In one embodiment, the heliostat 700 support further includes a hydraulic station 600. The hydraulic station 600 has two oil outlets and two oil return ports, each of which is provided with a solenoid valve for controlling on and off, the two oil outlets of the hydraulic station 600 are respectively connected to the oil inlet pipelines of the first rotary swing hydraulic cylinder 400 and the second rotary swing hydraulic cylinder 500, and the two oil return ports of the hydraulic station 600 are respectively connected to the oil outlet pipelines of the first rotary swing hydraulic cylinder 400 and the second rotary swing hydraulic cylinder 500.

[0057] Or, if Figure 5 As shown, the hydraulic station 600 has an oil outlet and an oil return port, the oil outlet of the hydraulic station 600 is connected to the oil inlets of the first rotary swing hydraulic cylinder 400 and the second rotary swing hydraulic cylinder 500 through a three-way pipe, and the oil return port of the hydraulic station 600 is connected to the oil outlets of the first rotary swing hydraulic cylinder 400 and the second rotary swing hydraulic cylinder 500 through a three-way pipe. Accordingly, solenoid valves are respectively provided on the oil inlets and oil outlets of the first rotary swing hydraulic cylinder 400 and the second rotary swing hydraulic cylinder 500 to control on and off.

[0058] In addition, if Figure 1 As shown, this embodiment further provides a heliostat system, which includes a heliostat bracket and a heliostat. The heliostat bracket is the heliostat bracket mentioned above, and the heliostat 700 is disposed on the supporting assembly 300 .

[0059] The above are only specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto. Those skilled in the art should understand that the present invention includes but is not limited to the contents described in the drawings and the above specific embodiments. Any modification that does not deviate from the functional and structural principles of the present invention shall be included in the scope of the claims.

Claims

1. A heliostat support, comprising a mounting base column, a column, a support assembly, a horizontal drive device and a vertical drive device; one end of the column is rotatably connected to the mounting base column, and the support assembly is used to support the heliostat; characterized in that: The horizontal drive device includes a first rotary swing hydraulic cylinder, and the vertical drive device includes a second rotary swing hydraulic cylinder; the support assembly includes a main shaft; The cylinder body of the first rotary swing hydraulic cylinder is fixed on the mounting base column, the rotary body of the first rotary swing hydraulic cylinder is coaxially connected with the column, and the first rotary swing hydraulic cylinder is used to drive the column to rotate around the axis of the column; The cylinder body of the second rotary swing hydraulic cylinder is fixed to the other end of the column, and the column extends in the radial direction of the rotating body of the second rotary swing hydraulic cylinder; the main shaft is coaxially connected to the rotating body of the second rotary swing hydraulic cylinder, and the second rotary swing hydraulic cylinder is used to drive the main shaft to rotate around the axis of the main shaft; the support assembly is hinged to the other end of the column through the main shaft.

2. The heliostat support according to claim 1, characterized in that: The bottom of the cylinder body of the first rotary swing hydraulic cylinder is connected to the flange of the mounting base column; the rotating body of the first rotary swing hydraulic cylinder is connected to the lower end flange of the column at the end opposite to the bottom of the cylinder body.

3. The heliostat support according to claim 1, characterized in that: A mounting seat plate is provided on the side of the cylinder body of the second rotary swing hydraulic cylinder; a mounting top plate matching the mounting seat plate is provided on the upper end of the column; the mounting seat plate and the mounting top plate are connected by fasteners.

4. The heliostat support according to claim 3, characterized in that: The cylinder body of the second rotary swing hydraulic cylinder has two opposite openings, and the rotating body of the second rotary swing hydraulic cylinder has two opposite connecting ends and through holes respectively connecting the two connecting ends, and the connecting ends are respectively located in the two openings of the cylinder body; the main shaft is arranged in the through holes and is circumferentially fixed to the second rotary swing hydraulic cylinder through a key connection.

5. The heliostat support according to claim 4, characterized in that: The extending direction of the through hole is in the same direction as the rotation center of the rotating body.

6. The heliostat support according to claim 4, characterized in that: Two limit assemblies are also arranged on the main shaft, and the two limit assemblies are respectively located at the two connecting ends, so as to axially fix the main shaft and the rotating body of the second rotary swing hydraulic cylinder.

7. The heliostat support according to claim 6, characterized in that: The limiting assembly includes a baffle and a U-shaped bolt; the baffle is provided with a screw hole for the U-shaped bolt to pass through; the main shaft passes between the two bolt heads of the U-shaped bolt and the diameter of the main shaft matches the distance between the two bolt heads.

8. The heliostat support according to any one of claims 1 to 7, characterized in that: It also includes a hydraulic station; the hydraulic station is connected to the pipelines of the first rotary swing hydraulic cylinder and the second rotary swing hydraulic cylinder respectively.

9. The heliostat support according to any one of claims 1 to 7, characterized in that: The support assembly further includes a plurality of cross beams disposed on the main shaft, wherein the plurality of cross beams intersect with the main shaft to form a mounting surface for fixing the heliostat.

10. A heliostat system, comprising a heliostat support and a heliostat, characterized in that: The heliostat bracket is the heliostat bracket according to any one of claims 1 to 9, and the heliostat is arranged on the supporting assembly.

Images