Heliostat fixing device

Abstract

The utility model relates to the technical field of tower type photo-thermal heliostats, in particular to a heliostat fixing device. The heliostat fixing device comprises a purline, a fixing cylinder and a base plate assembly, installation openings penetrating through the purline from top to bottom are formed in the purline at intervals, the fixing cylinder is welded and fixed to the installation openings, one end of the base plate assembly is fixed to a heliostat, and the other end of the base plate assembly is arranged in the hollow fixing cylinder and fixed. The purline is used as a supporting structure of a heliostat surface, the fixing cylinder is used for connecting and fixing the purline and the base plate assembly, and the base plate assembly is used for fixing the purline on a heliostat. The heliostat fixing device is simple in structure and high in load resistance, materials are saved, glue pouring is convenient, and the point-to-point connection interference situation caused by large machining errors of bolts and bolt holes in traditional bolt connection can be avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of tower-type photothermal heliostats, in particular to a heliostat fixing device. Background Art

[0002] Purlins are a common supporting component widely used in heliostat mirror support structures. In the field of solar thermal power generation, common purlin cross-sections include open and closed types. Open types include U-shaped steel and angle steel, while closed types include square steel and rectangular steel. Purlins are typically connected to the reflector surface through threaded connectors.

[0003] Chinese invention patent publication number CN108474590A discloses a bracket for arranging a mirror surface on a heliostat and a method for manufacturing the heliostat. The bracket includes: a base fixed to the rear side of the mirror surface, the base including a cutout and a radial recess extending through the cutout for accommodating a connecting element; and a fixing pin insertable into the cutout of the base, the fixing pin including a groove for engaging with the connecting element.

[0004] The aforementioned bracket for mounting the mirrors on the heliostat uses glue to achieve precise positioning of the two connecting components. Compared to bolted mounting, this approach offers a wider adjustment range in two directions parallel to the reflective surface and also solves the problem of the screws tilting relative to the bracket. However, the aforementioned bracket for mounting the mirrors on the heliostat still has the following disadvantages: Three additional blocks are required to prevent glue leakage during glue pouring; the use of open-section purlins is less strong than closed-section purlins; and due to their irregular cross-section, they require cold working, rather than commercially available steel sections, making their acquisition more complex than steel sections. Utility Model Content

[0005] The technical problem to be solved by the utility model is to provide a heliostat fixing device, which has a simple structure, strong load resistance, saves materials, is convenient for glue filling, and can avoid point-to-point connection interference between bolts and bolt holes caused by large processing errors in traditional bolt connections.

[0006] In order to solve the above technical problems, the present invention adopts the following technical solutions:

[0007] A heliostat fixing device includes purlins, a fixing cylinder, and a backing plate assembly. The purlins are spaced apart to form mounting openings that pass through the purlins from top to bottom. A fixing cylinder is welded and fixed to the mounting opening. One end of the backing plate assembly is fixed to the heliostat, and the other end of the backing plate assembly is arranged in and fixed in the hollow fixing cylinder.

[0008] Furthermore, the pad assembly includes a pad and a pin, and the pad and the pin are fixedly connected.

[0009] Furthermore, the pin is arranged in the fixed cylinder and fixed by glue.

[0010] Furthermore, the inner diameter of the fixing cylinder is larger than the outer diameter of the pin, and the outer diameter of the fixing cylinder is smaller than the outer diameter of the pad.

[0011] Furthermore, the inner diameter of the fixing cylinder is greater than twice the outer diameter of the pin.

[0012] Furthermore, a stopper is provided at the bottom of the fixed cylinder.

[0013] Furthermore, the fixed cylinder is provided with a concave portion.

[0014] Furthermore, the pin is provided with an annular protrusion.

[0015] Furthermore, the purlin is a closed cross-section structure.

[0016] Furthermore, the cross-sectional shape of the purlin is a hollow rectangle.

[0017] Beneficial effects of the utility model: The utility model discloses a heliostat fixing device, comprising purlins, a fixing cylinder and a pad assembly, wherein the purlins are spaced apart and provided with mounting openings that pass through the purlins from top to bottom, a fixing cylinder is welded and fixed at the mounting opening, one end of the pad assembly is fixed to the heliostat, and the other end of the pad assembly is arranged in and fixed in the hollow fixing cylinder. The purlin is used as the supporting structure of the heliostat mirror surface, the fixing cylinder is used to connect and fix the purlin and the pad assembly, and the pad assembly is used to fix the purlin to the heliostat; first, a purlin with an applicable closed cross-section structure is selected, and then mounting openings are opened on the purlin corresponding to the pad assembly intervals, which pass through the purlin from top to bottom, and then the fixing cylinder is welded at the mounting opening. The top and bottom of the fixing cylinder should extend outward for a distance relative to the purlin to facilitate the fixation of the pad assembly and the subsequent glue filling operation. Finally, the purlin is fixed to the heliostat by glue filling to support and provide fixed support for the heliostat. A heliostat fixing device of the present application has a simple structure, strong load resistance, saves materials, is convenient for glue filling, and can avoid the point-to-point connection interference between bolts and bolt holes in traditional bolt connections due to large processing errors. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural diagram of the utility model;

[0019] Figure 2 This is a cross-sectional view of the purlin connection section of the present utility model.

[0020] Explanation of reference numerals: 1-purlin, 2-fixed cylinder, 21-stopper, 22-pressing recess, 3-pad assembly, 31-pad, 32-pin, 4-heliostat. DETAILED DESCRIPTION

[0021] Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although exemplary embodiments of the present disclosure are shown in the accompanying drawings, it should be understood that the present disclosure can be implemented in various forms and should not be limited by the embodiments described herein. Rather, these embodiments are provided to enable a more thorough understanding of the present disclosure and to fully convey the scope of the present disclosure to those skilled in the art.

[0022] It should be understood that the terms used herein are for the purpose of describing specific example embodiments only and are not intended to be limiting. Unless the context clearly indicates otherwise, the singular forms "one", "an" and "said" as used herein may also be meant to include plural forms. The terms "comprise", "include", "contain" and "have" are inclusive and therefore specify the presence of the stated features, steps, operations, elements and / or parts, but do not exclude the presence or addition of one or more other features, steps, operations, elements, parts and / or combinations thereof. The method steps, processes, and operations described herein are not to be construed as necessarily requiring them to be performed in the specific order described or illustrated, unless the order of execution is clearly indicated. It should also be understood that additional or alternative steps may be used.

[0023] Although the terms first, second, third, etc. can be used in the text to describe multiple elements, components, regions, layers and / or sections, these elements, components, regions, layers and / or sections should not be limited by these terms. These terms can only be used to distinguish an element, component, region, layer or section from another region, layer or section. Unless the context clearly indicates otherwise, terms such as "first", "second" and other numerical terms do not imply order or sequence when used in the text. Therefore, the first element, component, region, layer or section discussed below can be referred to as the second element, component, region, layer or section without departing from the teachings of the example embodiments.

[0024] For ease of description, spatially relative terms may be used herein to describe the relationship of one element or feature relative to another element or feature as shown in the figures, such as "inside", "outside", "inside", "outside", "below", "beneath", "above", "above", etc. Such spatially relative terms are meant to include different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is flipped, then an element described as "below other elements or features" or "below other elements or features" will then be oriented as "above other elements or features" or "above other elements or features". Thus, the example term "below..." can include both above and below orientations. The device can be oriented otherwise (rotated 90 degrees or in other orientations) and the spatially relative descriptors used herein are interpreted accordingly.

[0025] Example 1:

[0026] like Figure 1 and Figure 2 As shown, this embodiment provides a heliostat fixing device, which includes a purlin 1, a fixing cylinder 2 and a pad assembly 3. The purlin 1 is provided with mounting openings that pass through the purlin 1 from top to bottom. The fixing cylinder 2 is welded and fixed to the mounting opening. One end of the pad assembly 3 is fixed to the heliostat 4, and the other end of the pad assembly 3 is disposed in the hollow fixing cylinder 2 and fixed thereto. In actual use, the purlin 1 is used as a supporting structure for the mirror surface of the heliostat 4, the fixing cylinder 2 is used to connect and fix the purlin 1 and the pad assembly 3, and the pad assembly 3 is used to fix the purlin 1 to the heliostat 4; first, a purlin 1 with an applicable closed cross-section structure is selected, and then mounting openings are opened on the purlin 1 corresponding to the pad assembly 3 from top to bottom, and then the fixing cylinder 2 is welded to the mounting opening. The top and bottom of the fixing cylinder 2 should extend outward from the purlin 1 for a distance to facilitate the fixation of the pad assembly 3 and the subsequent glue filling operation. Finally, the purlin 1 is fixed to the heliostat 4 by glue filling to support and provide fixed support for the heliostat 4.

[0027] In this embodiment, the backing plate assembly 3 includes a backing plate 31 and a pin 32, which are fixedly connected to each other. In actual use, the backing plate assembly 3 is fixed to the heliostat 4 via the backing plate 31, and the backing plate assembly 3 is fixed to the purlin 1 and the fixing cylinder 2 via the pin 32.

[0028] In this embodiment, the pin 32 is disposed in the fixed cylinder 2 and fixed by glue. In actual use, the backing plate assembly 3 is fixed to the fixed cylinder 2 and the purlin 1 by disposing the pin 32 in the fixed cylinder 2 and fixing it by glue.

[0029] In this embodiment, the inner diameter of the fixing cylinder 2 is larger than the outer diameter of the pin 32, while the outer diameter of the fixing cylinder 2 is smaller than the outer diameter of the backing plate 31. In actual use, by setting the inner diameter of the fixing cylinder 2 larger than the outer diameter of the pin 32, the pin 32 can be installed inside the fixing cylinder 2, and by setting the outer diameter of the fixing cylinder 2 smaller than the outer diameter of the backing plate 31, the backing plate 31 can be properly fixed to the heliostat 4.

[0030] In this embodiment, the inner diameter of the fixing cylinder 2 is larger than twice the outer diameter of the pin 32. In actual use, by setting the inner diameter of the fixing cylinder 2 to be larger than twice the outer diameter of the pin 32, the connection position of the pin 32 within the fixing cylinder 2 can be adjusted over a wide range, thereby overcoming installation errors caused by manufacturing errors and the like.

[0031] In this embodiment, a stopper 21 is provided at the bottom of the fixed cylinder 2. In actual use, when the pin 32 is located in the fixed cylinder 2, a liquid adhesive (such as polyurethane adhesive) is poured into the gap of the fixed cylinder 2 to serve as a connecting medium. The stopper 21 is provided to prevent glue leakage during the glue pouring operation on the pin 32 located in the fixed cylinder 2.

[0032] In this embodiment, the fixed cylinder 2 is provided with a concave portion 22. In actual use, the concave portion 22 is obtained by processing the middle portion of the fixed cylinder 2 to increase the contact area between the inner wall of the fixed cylinder 2 and the liquid adhesive, thereby making it more tightly connected during the glue pouring operation.

[0033] In this embodiment, the pin 32 is provided with an annular protrusion. In actual use, the annular protrusion is also provided on the pin 32 to increase the contact area between the pin 32 and the liquid adhesive, thereby making it more tightly connected during the glue pouring operation. The structure of the annular protrusion is similar to that of the above-mentioned depression 22, but in the opposite direction, so it is not shown in the figure.

[0034] In this embodiment, the purlin 1 has a closed cross-section structure. In actual use, the closed cross-section structure is less likely to deform under load than the open cross-section purlin 1, and can better adapt to large load outdoor working conditions.

[0035] In this embodiment, the cross-section of the purlin 1 is a hollow rectangle. In actual use, in engineering applications, the force applied to the purlin 1 in the vertical direction is much greater than the force applied in the transverse direction. Therefore, rectangular cross-section steel with the vertical long side is selected. For square steel with the same closed cross-section, rectangular steel can achieve the same load-bearing effect as square steel through a specific installation orientation (short side horizontal, long side vertical), while also reducing steel consumption.

[0036] All technical features in this embodiment can be freely combined according to actual needs. The above embodiments are only used to illustrate the technical solutions of the present invention and are not limiting. Although the present invention is described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention can be modified or replaced by equivalents without departing from the purpose and scope of the technical solutions of the present invention, and all of these should be included in the scope of the claims of the present invention. The technologies, shapes, and structural parts not described in detail in this utility model are all well-known technologies.

[0037] The above embodiments are preferred implementation schemes of the present invention. In addition, other implementation schemes are also included. Any obvious replacement without departing from the concept of the present technical solution is within the protection scope of the present invention.

Claims

1. A heliostat fixing device, characterized in that: The invention comprises a purlin (1), a fixed cylinder (2) and a pad assembly (3); the purlin (1) is provided with installation openings which pass through the purlin (1) from top to bottom at intervals; the fixed cylinder (2) is welded and fixed at the installation opening; one end of the pad assembly (3) is fixed to a heliostat (4); the other end of the pad assembly (3) is arranged in the hollow fixed cylinder (2) and fixed.

2. The heliostat fixing device according to claim 1, characterized in that: The pad assembly (3) comprises a pad (31) and a pin (32), and the pad (31) and the pin (32) are fixedly connected.

3. The heliostat fixing device according to claim 2, characterized in that: The pin (32) is arranged in the fixed cylinder (2) and fixed by glue injection.

4. The heliostat fixing device according to claim 2, characterized in that: The inner diameter of the fixed cylinder (2) is larger than the outer diameter of the pin (32), and the outer diameter of the fixed cylinder (2) is smaller than the outer diameter of the pad (31).

5. The heliostat fixing device according to claim 4, characterized in that: The inner diameter of the fixed cylinder (2) is greater than twice the outer diameter of the pin (32).

6. The heliostat fixing device according to claim 1, characterized in that: A stopper (21) is provided at the bottom of the fixed cylinder (2).

7. The heliostat fixing device according to claim 1, characterized in that: The fixed cylinder (2) is provided with a concave portion (22).

8. The heliostat fixing device according to claim 2, characterized in that: The pin (32) is provided with an annular protrusion.

9. The heliostat fixing device according to claim 1, characterized in that: The purlin (1) is a closed cross-section structure.

10. The heliostat fixing device according to claim 9, characterized in that: The cross-sectional shape of the purlin (1) is a hollow rectangle.

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