Rotary hydraulic damper for photovoltaic tracking bracket

Abstract

The invention discloses a photovoltaic tracking support rotary hydraulic damper which comprises a shell, the shell comprises two cover bodies, each cover body is provided with a through hole in the axial direction, one end, facing the other cover body, of each cover body is provided with a groove, the grooves are annularly formed outside the through holes, the two cover bodies are connected to enable the two grooves to define a cavity, and the cavity is provided with a through hole; hydraulic oil is arranged in the cavity, the cavity is divided into a first cavity body and a second cavity body by the first blocking piece and the second blocking piece, and the first cavity body is communicated with the second cavity body; the rotating core is rotatably arranged in the through holes of the two cover bodies and seals the cavity, the first blocking piece is connected to the rotating core and rotates along with the rotating core, and the second blocking piece is fixed in the cavity. According to the invention, vibration impact and rotary damping of the photovoltaic tracking support under the action of operation or the outside can be reduced, and the photovoltaic tracking support can also be applied when the photovoltaic tracking support rotates at a large angle; the structure is simple, and the cost is greatly reduced; auxiliary parts needed for installation are few, and time and labor are saved during installation or disassembly.

Description

Technical Field

[0001] The invention relates to the field of photovoltaic technology, and in particular to a photovoltaic tracking bracket rotary hydraulic damper. Background Art

[0002] Solar energy is a renewable energy source and has become an important component of clean energy used by humans. It has received more and more attention and development. Photovoltaic panels are important components for converting solar energy into electrical energy. A photovoltaic tracking bracket is a bracket used to install photovoltaic panels, which includes a mounting frame and a column. The mounting frame is adjusted to change the angle of the photovoltaic panel according to the position of the sun through an adjustment mechanism to improve the utilization of the sun. In order to improve the stability of the operation of the photovoltaic tracking bracket and extend its service life, a columnar shock absorber is currently provided on the photovoltaic tracking bracket for shock absorption. The existing columnar shock absorber has a limited stroke and cannot be used when the rotation angle of the photovoltaic panel exceeds 70°. It has limitations in use, and has a complicated structure, many components, high cost, and is time-consuming and labor-intensive to install or disassemble. Summary of the invention

[0003] In view of the shortcomings of the prior art, the object of the present invention is to provide a photovoltaic tracking bracket rotary hydraulic damper.

[0004] In order to achieve the above purpose, the technical solution provided by an embodiment of the present invention is as follows:

[0005] A photovoltaic tracking bracket rotary hydraulic damper, comprising:

[0006] A housing, wherein the housing comprises two covers, each of which is provided with a through hole in the axial direction, and each of which is provided with a groove at one end facing the other cover, wherein the groove is arranged outside the through hole, and the two covers are connected so that the two grooves enclose a cavity, wherein hydraulic oil, a first stopper and a second stopper are arranged in the cavity, wherein the first stopper and the second stopper divide the cavity into a first cavity and a second cavity, and the first cavity is connected to the second cavity;

[0007] The rotating core is rotatably disposed in the through holes of the two cover bodies and seals the cavity. The first stopper is connected to the rotating core and rotates with the rotating core. The second stopper is fixed in the cavity.

[0008] As a further improvement of the present invention, there is a gap between the first stopper and the inner wall of the cavity.

[0009] As a further improvement of the present invention, the first blocking member includes a blocking piece, the outer periphery of the rotating core is connected to a support, and the blocking piece is connected to the support.

[0010] As a further improvement of the present invention, the support is integrally connected to the outer periphery of the rotating core; and / or the support is provided with a notch, the inner wall of the notch is provided with at least one limiting surface, the baffle is provided with at least one step surface, and the support is passed through the notch so that the step surface abuts against the limiting surface.

[0011] As a further improvement of the present invention, the second stopper is fixed to one of the cover bodies, and a cross section of the second stopper matches a cross section of the cavity.

[0012] As a further improvement of the present invention, the rotating core includes a cylinder, a bushing is arranged in each of the through holes, and the cylinder is located in the bushing and rotates relative to the bushing.

[0013] As a further improvement of the present invention, the rotating core also includes a ring plate connected to the outer periphery of the cylinder, an annular protrusion is formed between the groove of each cover body and the through hole, each annular protrusion is provided with a sealing gasket, and the ring plate abuts against each bushing and sealing gasket.

[0014] As a further improvement of the present invention, six support plates are arranged on the inner wall of the cylinder along the circumferential direction, and the six support plates are connected to form a hexagonal structure.

[0015] As a further improvement of the present invention, a sealing ring is arranged between the opposite ends of the two cover bodies.

[0016] As a further improvement of the present invention, the rotary hydraulic damper further includes a connecting frame, and the connecting frame is respectively connected to the two cover bodies.

[0017] The beneficial effects of the present invention are:

[0018] (1) The present invention can reduce the vibration impact of the photovoltaic tracking bracket during operation or under external influences, and adopts a rotary hydraulic damping shock absorption method, which can also be applied when the photovoltaic tracking bracket rotates at a large angle, and has a wide range of applications.

[0019] (2) It uses fewer parts and has a simple structure, which greatly reduces costs.

[0020] (3) Fewer auxiliary parts are required during installation, which saves time and effort during installation or disassembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0022] Figure 1 A perspective view of a preferred embodiment of the present invention;

[0023] Figure 2 A stereogram showing another perspective of a preferred embodiment of the present invention;

[0024] Figure 3 It is a schematic diagram of the decomposed structure of a preferred embodiment of the present invention;

[0025] Figure 4 for Figure 3 A is an enlarged schematic diagram;

[0026] Figure 5 for Figure 1 The main view;

[0027] Figure 6 for Figure 1 Rear view of

[0028] Figure 7 for Figure 6 DD section view;

[0029] Figure 8 for Figure 6 EE section view;

[0030] Fig. 9 for Figure 1 Left view of;

[0031] Fig.10 for Fig. 9 FF section view;

[0032] Fig.11 for Figure 1 Right view of;

[0033] Fig.12 for Fig.11 GG section view;

[0034] In the figure: 1, shell, 11, cover body, 111, protrusion, 112, second locking member, 12, through hole, 13, groove, 14, cavity, 141, first cavity, 142, second cavity, 15, first stopper, 151, stopper, 1511, step surface, 16, second stopper, 161, protrusion, 162, first locking member, 17, gap, 18, annular convex portion, 2, rotating core, 20, support, 201, notch, 2011, limiting surface, 21, cylinder, 211, support plate, 22, ring plate, 3, bushing, 31, sleeve body, 32, gasket, 4, sealing gasket, 5, sealing ring, 6, connecting frame, 61, side plate, 611, mounting hole, 62, base plate, 621, waist-shaped hole. DETAILED DESCRIPTION

[0035] In order to enable those skilled in the art to better understand the technical solutions in the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present invention.

[0036] See also Figure 1-Figure 5 , Fig.10 , Fig.12 The embodiment of the present application discloses a photovoltaic tracking bracket rotary hydraulic damper, including a shell 1 and a rotating core 2. The shell 1 includes two covers 11, each cover 11 is provided with a through hole 12 along the axial direction, and each cover 11 is provided with a groove 13 at one end facing the other cover 11, and the groove 13 is arranged outside the through hole 12. The two covers 11 are connected so that the two grooves 13 enclose a cavity 14, and hydraulic oil (not shown in the figure), a first stopper 15 and a second stopper 16 are arranged in the cavity 14. The first stopper 15 and the second stopper 16 divide the cavity 14 into a first cavity 141 and a second cavity 142, and the first cavity 141 and the second cavity 142 are connected. The rotating core 2 is rotatably arranged in the through hole 12 of the two covers 11 and closes the cavity 14, the first stopper 15 is connected to the rotating core 2 and rotates with the rotating core 2, and the second stopper 16 is fixed in the cavity 14. The first stopper 15 enables the hydraulic oil to flow slowly between the first cavity 141 and the second cavity 142, and the second stopper 16 blocks the hydraulic oil from flowing between the first cavity 141 and the second cavity 142. When external force acts on the rotating core 2, the rotating core 2 drives the first stopper 15 to move, changing the space between the first cavity 141 and the second cavity 142, so that the hydraulic oil flows slowly to the first cavity 141 or the second cavity 142. When the hydraulic oil flows, resistance is generated, so that the first stopper 15 of the rotating core 2 moves slowly, absorbing the vibration impact caused by the operation of the photovoltaic tracking bracket and the external force, realizing hydraulic damping, and achieving a good shock absorption effect.

[0037] See also Figure 6 , Figure 7 In some embodiments, there is a gap 17 between the first stopper 15 and the inner wall of the cavity 14, and the hydraulic oil slowly flows into the first cavity 141 or the second cavity 142 along the gap 17. It is understandable that other structures that can achieve the hydraulic oil slowly flowing into the first cavity 141 or the second cavity 142 along the first stopper 15 are also possible, and are not limited here.

[0038] In order to achieve a better damping effect, it is preferred that the gap 17 between the first stopper 15 and the inner wall of the cavity 14 is uniform all around. It is further preferred that the gap 17 is 0.1-0.3 mm.

[0039] See also Figure 3 , Figure 4 In some embodiments, the first stopper 15 is connected to the outer periphery of the rotating core 2. Preferably, the first stopper 15 includes a stopper 151, the outer periphery of the rotating core 2 is connected to the support 20, and the stopper 151 is connected to the support 20. Specifically, the support 20 is convexly disposed on the outer periphery of the rotating core 2, and the stopper 151 is detachably connected to the support 20.

[0040] Specifically, the support 151 is integrally connected with the outer circumference of the rotating core 2, thereby improving the stability of the connection between the rotating core 2 and the first stopper 15. The support 20 is provided with a notch 201, the inner wall of the notch 201 is provided with at least one limiting surface 2011, the stopper 151 is provided with at least one step surface 1511, and the support 20 is inserted into the notch 201 so that the step surface 1511 abuts against the limiting surface 2011.

[0041] See also Figure 6-Figure 8 , the second stopper 16 is fixed to one of the covers 11, and the cross section of the second stopper 16 matches the cross section of the cavity 14. The second stopper 16 blocks the hydraulic oil from flowing from there to the first cavity 141 or the second cavity 142. Preferably, the second stopper 16 is a stopper. A protrusion 161 is provided outwardly at one end of one of the covers 11 that is away from the other cover 11, and the first locking member 162 passes through the second stopper 16 and is screwed into one of the covers 11 and the protrusion 161 in sequence, thereby improving the stability of the second stopper 16 fixed to the cover 11.

[0042] See also Figure 6-Figure 8 The rotating core 2 includes a cylinder 21 , and a bushing 3 is disposed in each through hole 12 . The cylinder 21 is located in the bushing 3 and rotates relative to the bushing 3 .

[0043] The rotating core 2 also includes an annular plate 22 connected to the outer periphery of the cylinder 21, an annular protrusion 18 is formed between the groove 13 of each cover body 11 and the through hole 12, each annular protrusion 18 is provided with a sealing gasket 4, and the annular plate 22 abuts against each bushing 3 and the sealing gasket 4. Preferably, the bushing 3 includes a sleeve 31 and a gasket 32 ​​connected to an axial end of the sleeve 31 and extending outward. The sleeve 31 fits in the through hole 12, and the gasket 32 ​​is locked on the annular protrusion 18. The cylinder 21 fits in the sleeve 31, and the annular plate 22 abuts on the gasket 32. The sleeve 3 is used to achieve precise positioning of the rotating core 2 in the radial direction and the axial direction. The sealing gasket 4 is used to further achieve the sealing of the cavity 14.

[0044] In order to further improve the sealing performance of the cavity 14 , a sealing ring 5 is preferably provided between the opposite ends of the two covers 11 .

[0045] See also Figure 9-12 The inner wall of the cylinder 21 is provided with six support plates 211 along the circumferential direction, and the six support plates 211 are connected to form a hexagonal structure. The main beam of the photovoltaic tracking bracket is a hexagonal tube. During installation, the main beam is directly inserted into the hexagonal structure to realize the connection between the rotary hydraulic damper and the main beam, which is very convenient and quick. Preferably, the six support plates 211 are integrally formed and connected with the cylinder 21 to improve the stability of the connection between the support plates 211 and the cylinder 21.

[0046] Specifically, a plurality of protrusions 111 are arranged at intervals along the circumferential direction on the circumferential surface of each cover body 11 , and the second locking member 112 passes through the protrusion 111 of one cover body 11 and is locked into the protrusion 111 of another cover body 11 , thereby achieving connection between the two cover bodies 11 .

[0047] The rotary hydraulic damper also includes a connecting frame 6, which is respectively connected to the two cover bodies 11. The connecting frame 6 facilitates better connection to the columns of the photovoltaic tracking bracket. Specifically, the connecting frame 6 includes two side panels 61 arranged opposite to each other and a base plate 62 connecting the two side panels 61. The upper end of the side panel 61 is arranged in an arc-shaped concave shape to avoid interference with the cover body 11. Each side panel 61 is provided with a mounting hole 611 to facilitate connection with the protrusion 111 of the cover body 11. Two waist-shaped holes 621 are provided on the base plate 62 to facilitate installation with other components.

[0048] When the present invention is in use, external forces act on the six support plates 211, and then are transmitted to the rotating core 2 through the support plates 211. The rotating core 2 drives the first stopper 15 to rotate in the cavity 14, changing the space between the first cavity 141 and the second cavity 142, so that the hydraulic oil slowly flows to the first cavity 141 or the second cavity 142 through the gap 17. When the hydraulic oil flows, resistance is generated, which slows down the movement of the first stopper 15 of the rotating core 2, absorbing the vibration impact generated by the operation of the photovoltaic tracking bracket and the external force, realizing hydraulic damping, and achieving the purpose of shock reduction.

[0049] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

[0050] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A photovoltaic tracking bracket rotary hydraulic damper, characterized in that: include: A housing, wherein the housing comprises two covers, each of which is provided with a through hole in the axial direction, and each of which is provided with a groove at one end facing the other cover, wherein the groove is arranged outside the through hole, and the two covers are connected so that the two grooves enclose a cavity, wherein hydraulic oil, a first stopper and a second stopper are arranged in the cavity, wherein the first stopper and the second stopper divide the cavity into a first cavity and a second cavity, and the first cavity is connected to the second cavity; The rotating core is rotatably disposed in the through holes of the two cover bodies and seals the cavity. The first stopper is connected to the rotating core and rotates with the rotating core. The second stopper is fixed in the cavity.

2. The photovoltaic tracking bracket rotary hydraulic damper according to claim 1 is characterized in that: There is a gap between the first stopper and the inner wall of the cavity.

3. The photovoltaic tracking bracket rotary hydraulic damper according to claim 1 or 2, characterized in that: The first blocking member includes a blocking piece, a support is connected to the outer periphery of the rotating core, and the blocking piece is connected to the support.

4. The photovoltaic tracking bracket rotary hydraulic damper according to claim 3 is characterized in that: The support is integrally connected to the outer circumference of the rotating core; and / or The support is provided with a notch, the inner wall of the notch is provided with at least one limiting surface, the blocking piece is provided with at least one step surface, and the support is penetrated through the notch so that the step surface abuts against the limiting surface.

5. The photovoltaic tracking bracket rotary hydraulic damper according to claim 1, characterized in that: The second stopper is fixed to one of the cover bodies, and a cross section of the second stopper matches a cross section of the cavity.

6. The photovoltaic tracking bracket rotary hydraulic damper according to claim 1, characterized in that: The rotating core comprises a cylinder, each through hole is provided with a bushing, and the cylinder is located in the bushing and rotates relative to the bushing.

7. The photovoltaic tracking bracket rotary hydraulic damper according to claim 6, characterized in that: The rotating core also includes an annular plate connected to the outer periphery of the cylinder, an annular convex portion is formed between the groove of each cover body and the through hole, each annular convex portion is provided with a sealing gasket, and the annular plate abuts against each bushing and sealing gasket.

8. The photovoltaic tracking bracket rotary hydraulic damper according to claim 6, characterized in that: The inner wall of the cylinder is provided with six support plates along the circumferential direction, and the six support plates are connected to form a hexagonal structure.

9. The photovoltaic tracking bracket rotary hydraulic damper according to claim 1, characterized in that: A sealing ring is arranged between the opposite ends of the two cover bodies.

10. The photovoltaic tracking bracket rotary hydraulic damper according to claim 1, characterized in that: The rotary hydraulic damper also includes a connecting frame, and the connecting frame is respectively connected to the two cover bodies.

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