Damping bearings and tracking brackets

Abstract

The present invention relates to a damping bearing and a tracking bracket. The damping bearing includes: a bearing seat, which is configured with a through hole; a dynamic damping member, which is rotatably connected to the bearing seat and is located on the inner side of the through hole, the dynamic damping member and the hole wall of the through hole jointly define a damping cavity, and the dynamic damping member is configured as an annular member; a crimping assembly, which is located on the inner side of the dynamic damping member, and the crimping assembly includes at least two crimping members, and the at least two crimping members are arranged along the circumference of the dynamic damping member and jointly define an installation cavity for the main beam to pass through; and an adjustment assembly, which is clamped between the inner surface of the dynamic damping member and the crimping assembly, and the adjustment assembly is configured to be able to adjust the distance between at least one crimping member and the dynamic damping member along the radial direction of the dynamic damping member to change the size of the installation cavity. The damping bearing and tracking bracket of the present invention have better connection reliability and higher safety.

Description

Technical Field

[0001] The present invention relates to the field of photovoltaic technology, and in particular to a damping bearing and a tracking bracket. Background Art

[0002] In rotating mechanical equipment used outdoors, damping bearings are often used to achieve a rotational connection between two structural units. For example, in a photovoltaic tracking system, the photovoltaic modules are rotationally connected to the main beam via damping bearings. However, in actual use, a gap often exists between the inner bearing surface of the damping bearing and the main beam. When the wind load acting on the surface of the photovoltaic module is large and the wind-induced vibration effect is significant, this gap can cause the damping bearing to be damaged by the strong structural shock load, affecting the reliability of the connection between the damping bearing and the main beam, and even affecting other structural units in the photovoltaic tracking system, resulting in poor safety of the photovoltaic tracking system. Summary of the Invention

[0003] Based on this, it is necessary to provide a damping bearing and tracking bracket with better connection reliability and higher safety.

[0004] A first aspect of an embodiment of the present application provides a damping bearing, comprising:

[0005] The bearing seat is constructed with a through hole;

[0006] A dynamic damping member is rotatably connected to the bearing seat and is located inside the through hole. The dynamic damping member and the hole wall of the through hole jointly define a damping cavity. The dynamic damping member is constructed as an annular member.

[0007] a press-fit assembly located inside the dynamic damping member, the press-fit assembly comprising at least two press-fit members, the at least two press-fit members being arranged along the circumference of the dynamic damping member and jointly defining a mounting cavity for the main beam to pass through; and

[0008] The adjustment component is sandwiched between the inner surface of the dynamic damping member and the crimping component. The adjustment component is configured to be able to adjust the radial distance of at least one crimping member relative to the dynamic damping member to change the size of the installation cavity.

[0009] In one embodiment, the adjustment assembly includes a first adjustment member and a second adjustment member located between the inner surface of the dynamic damping member and the crimping assembly, the first adjustment member and the second adjustment member are sequentially connected along the axial direction of the dynamic damping member and their relative positions along the axial direction are adjustable;

[0010] A longitudinal section of at least one of the first adjusting member and the second adjusting member along the radial direction of the dynamic damping member is configured as a wedge-shaped section.

[0011] In one embodiment, the first adjusting member and the second adjusting member cooperate with the inclined surface of the pressing member facing the dynamic damping member.

[0012] In one embodiment, the surfaces of the first adjusting member and the second adjusting member facing the crimping member are respectively configured as a first inclined surface and a second inclined surface;

[0013] The crimping piece includes a third inclined surface matching the first inclined surface, and a fourth inclined surface matching the second inclined surface;

[0014] The first inclined surface and the second inclined surface are symmetrically arranged with respect to a first plane, and the first plane is perpendicular to the axis of the dynamic damping member and passes through the axial center of the dynamic damping member.

[0015] In one embodiment, the first adjustment member and the second adjustment member are both configured as ring-shaped members;

[0016] The first inclined surface and the second inclined surface are both configured as conical surfaces, each of the third inclined surfaces is located on the same conical surface, and each of the fourth inclined surfaces is also located on the same conical surface.

[0017] In one embodiment, the first adjusting member and the second adjusting member are matched with the inclined surface of the inner side surface of the dynamic damping member.

[0018] In one embodiment, the surfaces of the first adjusting member and the second adjusting member facing the inner surface of the dynamic damping member are respectively configured as a fifth inclined surface and a sixth inclined surface;

[0019] The dynamic damping member includes a seventh inclined surface matching the fifth inclined surface, and an eighth inclined surface matching the sixth inclined surface;

[0020] The fifth inclined surface and the sixth inclined surface are symmetrically arranged with respect to a first plane, and the first plane is perpendicular to the axis of the dynamic damping member and passes through the axial center of the dynamic damping member.

[0021] In one embodiment, the first adjustment member and the second adjustment member are both configured as ring-shaped members;

[0022] The fifth inclined surface and the sixth inclined surface are both configured as conical surfaces, each of the seventh inclined surfaces is located on the same conical surface, and each of the eighth inclined surfaces is also located on the same conical surface.

[0023] In one embodiment, the first adjusting member and the second adjusting member are connected by a fastener extending along the axial direction of the dynamic damping member.

[0024] In one embodiment, the third inclined surface and the fourth inclined surface of each crimping member are arranged in sequence along the axial direction of the dynamic damping member;

[0025] The third inclined surface and the fourth inclined surface on the same crimping member are symmetrically arranged relative to the first plane. The first plane is perpendicular to the axis of the dynamic damping member and passes through the axial center of the dynamic damping member.

[0026] In one embodiment, there are two pressing members, and the two pressing members are spaced apart along the circumference of the dynamic damping member.

[0027] In one embodiment, an annular groove is formed on the wall of the through hole, and the groove is arranged around the axis of the through hole;

[0028] A damping portion is protruding from the outer surface of the dynamic damping member. The damping portion extends into the groove, and the dynamic damping member is sealed at the notch position of the groove to define a damping cavity.

[0029] In one embodiment, a first step portion is formed on the side groove wall of the groove, and a second step portion matching the first step portion is formed on the surface of the damping portion opposite to the side groove wall.

[0030] In one embodiment, a first step portion is provided on a set of side groove walls opposite to each other along the axial direction of the dynamic damping member;

[0031] A second step portion is provided on a group of surfaces of the damping portion that are opposite to each other in the axial direction of the dynamic damping element.

[0032] In one embodiment, a distance is provided between the top end of the damping portion and the bottom wall of the groove, and a gear tooth structure is formed on the top end of the damping portion.

[0033] A second aspect of an embodiment of the present application provides a tracking bracket, including a main beam and the above-mentioned damping bearing, wherein the main beam is connected to the installation cavity.

[0034] The beneficial effects of the above-mentioned damping bearing and tracking bracket are:

[0035] By clamping the adjustment component between the inner surface of the dynamic damping member and the crimping component, the adjustment component is configured to be able to adjust the radial spacing of at least one crimping member relative to the dynamic damping member along the dynamic damping member to change the size of the installation cavity. Compared with the situation in the related art where there is a gap between the damping bearing and the main beam, the relative position between the crimping member and the main beam in the embodiment of the present application is adjustable, which can eliminate the gap.

[0036] During the installation process, the adjustment component can be adjusted to change the radial spacing of the crimping part relative to the dynamic damping part, and the size of the installation cavity can be changed. This can minimize or avoid the gap between the main beam and the crimping part, reduce the load of structural shock impact, improve the connection reliability of the damping bearing and the main beam, and avoid the shock impact from affecting other structural units in the tracking bracket, thereby improving the safety of the tracking bracket. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] Figure 1 A schematic structural diagram of a damping bearing provided in an embodiment of the present application;

[0038] Figure 2 A schematic diagram of the exploded structure of the damping bearing provided in an embodiment of the present application;

[0039] Figure 3 A schematic cross-sectional view of the damping bearing provided in an embodiment of the present application;

[0040] Figure 4 for Figure 3 A local enlarged view of point A;

[0041] Figure 5 Schematic diagram of the decomposed structure of the damping bearing provided in an embodiment of the present application.

[0042] Description of Figure Numbers:

[0043] 100. Damping bearing;

[0044] 10. Bearing seat; 11. Through hole; 111. Groove; 1111. First step; 1112. Second step; 12. Seat body; 13. First end cap; 14. Second end cap; 15. Liquid injection hole; 20. Dynamic damping element; 21. Damping portion; 211. Gear tooth structure; 30. Press-fit assembly; 31. Press-fit element; 40. Damping chamber; 41. Mounting chamber;

[0045] 50. Adjustment assembly; 51. First adjustment member; 52. Second adjustment member; 53. Fastener; 501. First inclined surface; 502. Second inclined surface; 503. Third inclined surface; 504. Fourth inclined surface; 505. Fifth inclined surface; 506. Sixth inclined surface; 507. Seventh inclined surface; 508. Eighth inclined surface;

[0046] O. Axial direction of the dynamic damping component. DETAILED DESCRIPTION

[0047] To make the above-mentioned objects, features, and advantages of the present invention more readily apparent, specific embodiments of the present invention are described in detail below with reference to the accompanying drawings. The following description sets forth numerous specific details to facilitate a full understanding of the present invention. However, the present invention can be implemented in many other ways than those described herein, and those skilled in the art may make similar modifications without departing from the scope of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0048] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0049] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.

[0050] In the present invention, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection; direct connection, or indirect connection through an intermediate medium; internal communication between two components, or interaction between two components, unless otherwise specified. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0051] In the present invention, unless otherwise expressly specified or limited, when a first feature is "above" or "below" a second feature, it may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediary. Furthermore, when a first feature is "above," "above," or "above" a second feature, it may mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is at a higher level than the second feature. When a first feature is "below," "below," or "below" a second feature, it may mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is at a lower level than the second feature.

[0052] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be an intermediate element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be an intermediate element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only implementation methods.

[0053] The damping bearing and tracking bracket of the embodiment of the present application are described below with reference to the accompanying drawings.

[0054] Figure 1 This is a schematic diagram of the structure of the damping bearing provided in an embodiment of the present application. Figure 2 This is a schematic diagram of the decomposed structure of the damping bearing provided in an embodiment of the present application. Figure 3 This is a schematic cross-sectional view of the damping bearing provided in an embodiment of the present application. Figure 4 for Figure 3 A local enlarged view of point A, Figure 5 Schematic diagram of the decomposed structure of the damping bearing provided in an embodiment of the present application.

[0055] Reference Figure 1 、 Figure 2 and Figure 3 The damping bearing 100 provided in the embodiment of the present application includes a bearing seat 10, a dynamic damping member 20, a pressing assembly 30 and an adjustment assembly 50.

[0056] The bearing seat 10 is configured with a through hole 11. The dynamic damping member 20 is rotatably connected to the bearing seat 10 and is located inside the through hole 11. The dynamic damping member 20 and the hole wall of the through hole 11 together define a damping chamber 40. The dynamic damping member 20 is configured as an annular member.

[0057] The crimping assembly 30 is located inside the dynamic damping member 20 and includes at least two crimping members 31 . The at least two crimping members 31 are arranged along the circumference of the dynamic damping member 20 and together define an installation cavity 41 for the main beam (not shown) to pass through.

[0058] The adjustment assembly 50 is clamped between the inner surface of the dynamic damping member 20 and the crimping assembly 30. The adjustment assembly 50 is configured to be able to adjust the radial spacing of at least one crimping member 31 relative to the dynamic damping member 20 along the dynamic damping member 20 to change the size of the installation cavity 41.

[0059] The adjustment component 50 is clamped between the inner surface of the dynamic damping member 20 and the crimping component 30. The adjustment component 50 is configured to be able to adjust the radial spacing of at least one crimping member 31 relative to the dynamic damping member 20 along the dynamic damping member 20 to change the size of the mounting cavity 41. Compared with the situation in the related art where there is a gap between the damping bearing and the main beam, the relative position between the crimping member 31 and the main beam in the embodiment of the present application is adjustable to eliminate the gap.

[0060] During the installation process, the adjustment component 50 can be adjusted to change the radial spacing of the crimping part 31 relative to the dynamic damping part 20 along the dynamic damping part 20, and the size of the installation cavity 41 can be changed. In this way, the gap between the main beam and the crimping part 31 can be minimized or avoided, the load of structural shock impact can be reduced, the connection reliability of the damping bearing 100 and the main beam can be improved, and the shock impact can be avoided from affecting other structural units in the tracking bracket, so that the entire system of the tracking bracket will not be affected by the impact caused by the gap, thereby improving the safety of the tracking bracket.

[0061] In the embodiment of the present application, the dynamic damping member 20 is configured as an annular member, which means that the dynamic damping member 20 as a whole is generally in the shape of a closed ring. The crimping assembly 30 is located inside the dynamic damping member 20, which means that the crimping assembly 30 is located inside the inner annular surface of the dynamic damping member 20. The inner surface of the dynamic damping member 20 refers to the inner circumferential surface of the dynamic damping member 20.

[0062] The arrangement of at least two crimping members 31 along the circumference of the dynamic damping member 20 means that the at least two crimping members 31 are arranged around the axial direction O of the dynamic damping member. Furthermore, the adjustment assembly 50 is sandwiched between the inner surface of the dynamic damping member 20 and the crimping assembly 30, meaning that at least part, or all, of the adjustment assembly 50 is sandwiched between the inner surface of the dynamic damping member 20 and the outer surface of the crimping assembly 30. That is, there is a distance between the inner surface of the dynamic damping member 20 and the outer surface of the crimping assembly 30 in the radial direction of the dynamic damping member 20, and they are not in direct contact.

[0063] The radial spacing of the crimping part 31 relative to the dynamic damping part 20, for example, refers to the spacing between the crimping part 31 and the dynamic damping part 20 in the radial direction of the dynamic damping part 20. When this spacing changes, the size of the mounting cavity 41 along the radial direction decreases or increases to adapt to main beams of different sizes.

[0064] In the embodiment of this application, Figure 2 、 Figure 3 and Figure 4The adjustment assembly 50 includes a first adjustment member 51 and a second adjustment member 52 located between the inner surface of the dynamic damping member 20 and the crimping assembly 30. The first adjustment member 51 and the second adjustment member 52 are connected in sequence along the axial direction O of the dynamic damping member and their relative positions along the axial direction are adjustable. At least one of the first adjustment member 51 and the second adjustment member 52 has a wedge-shaped cross-section along the radial longitudinal section of the dynamic damping member 20.

[0065] Here, a wedge-shaped cross-section means that, along the axial direction O of the dynamic damping member (i.e., the axial direction of the damping bearing 100), the width of the longitudinal cross-section along the radial direction of the dynamic damping member 20 gradually increases; or, along the axial direction O of the dynamic damping member, the width of the longitudinal cross-section along the radial direction gradually decreases. For example, the cross-section can be trapezoidal, with the upper and lower bases of the trapezoid corresponding to the two end faces of the first adjustment member 51 (or second adjustment member 52) along the axial direction O of the dynamic damping member. Alternatively, the cross-section can be triangular, with the base of the triangle corresponding to the end face of the first adjustment member 51 (or second adjustment member 52) along the axial direction O of the dynamic damping member.

[0066] Of course, the shape of the cross section includes but is not limited to this, and may also be other shapes, as long as the width dimension of the longitudinal cross section gradually increases or decreases in the radial direction along the axial direction O of the dynamic damping member.

[0067] In a specific implementation, the first adjusting member 51 and the second adjusting member 52 cooperate with the inclined surface of the pressing member 31 facing the dynamic damping member 20. Furthermore, the first adjusting member 51 and the second adjusting member 52 cooperate with the inclined surface of the inner side of the dynamic damping member 20.

[0068] In the embodiment of the present application, the first adjusting member 51 and the second adjusting member 52 are described as being beveled with the surface of the crimping member 31 facing the dynamic damping member 20 and the inner surface of the dynamic damping member 20. Of course, the first adjusting member 51 and the second adjusting member 52 can also be beveled with the surface of the crimping member 31 facing the dynamic damping member 20, but not beveled with the inner surface of the dynamic damping member 20. Alternatively, the first adjusting member 51 and the second adjusting member 52 can be beveled with the inner surface of the dynamic damping member 20 instead of the surface of the crimping member 31 facing the dynamic damping member 20. The latter two situations are similar to the first situation and will not be described in detail here.

[0069] In specific implementation, for the situation where the first adjusting member 51 and the second adjusting member 52 cooperate with the inclined surface of the crimping member 31 facing the dynamic damping member 20, the first adjusting member 51 and the second adjusting member 52 can be combined with the inclined surface of the crimping member 31 Figure 2 、 Figure 4 and Figure 5 Surfaces of the first adjusting member 51 and the second adjusting member 52 facing the crimping member 31 are respectively configured as a first inclined surface 501 and a second inclined surface 502 .

[0070] The crimping member 31 includes a third inclined surface 503 that matches the first inclined surface 501, and a fourth inclined surface 504 that matches the second inclined surface 502. The first and second inclined surfaces 501, 502 are symmetrically arranged relative to a first plane, which is perpendicular to the axis of the dynamic damping member 20 and passes through the axial center O of the dynamic damping member. Thus, the coordination of the first and third inclined surfaces 501, 503, and the coordination of the second and fourth inclined surfaces 502, 504, prevents axial movement of the first and second adjusting members 51, 52 relative to the crimping member 31 during normal operation.

[0071] In the embodiment of the present application, the first adjustment member 51 and the second adjustment member 52 are both constructed as annular members. In this case, the first inclined surface 501 and the second inclined surface 502 are both constructed as conical surfaces, each third inclined surface 503 is located on the same conical surface, and each fourth inclined surface 504 is also located on the same conical surface. In this way, when the first adjustment member 51 and the second adjustment member 52 move along the axial direction O of the dynamic damping member, it is convenient to apply force evenly to the crimping member 31 in the entire circumferential direction, making the adjustment process smoother. At this time, the movement of each crimping member 31 is radially inward or outward along the dynamic damping member 20.

[0072] As for the situation where the first adjusting member 51 and the second adjusting member 52 are matched with the inner surface of the dynamic damping member 20, continue to refer to Figure 2 and Figure 5 Surfaces of the first adjusting member 51 and the second adjusting member 52 facing the inner surface of the dynamic damping member 20 are configured as a fifth inclined surface 505 and a sixth inclined surface 506 , respectively.

[0073] The dynamic damping member 20 includes a seventh inclined surface 507 that matches the fifth inclined surface 505, and an eighth inclined surface 508 that matches the sixth inclined surface 506. The fifth inclined surface 505 and the sixth inclined surface 506 are symmetrically arranged relative to the first plane. Thus, the coordination of the fifth inclined surface 505 and the seventh inclined surface 507, and the coordination of the sixth inclined surface 506 and the eighth inclined surface 508, prevents axial movement of the first adjusting member 51 and the second adjusting member 52 relative to the dynamic damping member 20 during normal operation.

[0074] Furthermore, the first adjustment member 51 and the second adjustment member 52 are both annular. The fifth inclined surface 505 and the sixth inclined surface 506 are both conical surfaces. The seventh inclined surfaces 507 are located on the same conical surface, and the eighth inclined surfaces are also located on the same conical surface. This facilitates uniform force application to the dynamic damping member 20 throughout its entire circumference as the first adjustment member 51 and the second adjustment member 52 move along the axial direction O of the dynamic damping member, making the adjustment process smoother.

[0075] In the embodiment of the present application, the surface of the adjustment assembly 50 facing the crimping member 31 forms a V-shaped groove through the first inclined surface 501 and the second inclined surface 502, and the surface of the crimping member 31 facing the adjustment assembly 50 forms a V-shaped protrusion through the third inclined surface 503 and the fourth inclined surface 504, which cooperate with the V-shaped groove to prevent the adjustment assembly 50 and the crimping member 31 from axial movement during normal operation. On the other hand, the surface of the adjustment assembly 50 facing the dynamic damping member 20 forms a V-shaped groove through the fifth inclined surface 505 and the sixth inclined surface 506, and the inner surface of the dynamic damping member 20 forms a V-shaped protrusion through the seventh inclined surface 507 and the eighth inclined surface 508, which cooperate with the V-shaped groove to prevent the adjustment assembly 50 and the dynamic damping member 20 from axial movement during normal operation. In this way, since the main beam is fixed in the installation cavity 41 of the crimping assembly 30, the crimping assembly 30, the adjustment assembly 50 and the dynamic damping member 20 can be relatively fixed, and the dynamic damping member 20 can rotate relative to the bearing seat 10, thereby realizing the relative rotation of the main beam relative to the bearing seat 10.

[0076] In the embodiment of the present application, the first adjustment member 51 and the second adjustment member 52 are connected by a fastener 53 extending along the axial direction O of the dynamic damping member. The fastener 53 can be, for example, a bolt assembly. In this way, the relative position of the first adjustment member 51 and the second adjustment member 52 can be simply adjusted by the threaded fit of the nut and the bolt in the bolt assembly. When it is necessary to reduce the gap between the crimping member 31 and the main beam, for example, by tightening the bolts, the first adjustment member 51 and the second adjustment member 52 can be relatively close to each other, squeezing the crimping member 31 toward the main beam, clamping the main beam, eliminating the structural shock load caused by the gap, and benefiting the life of the damping bearing 100 and the structural safety of the tracking bracket.

[0077] In the embodiment of the present application, referring to 2, the third inclined surface 503 and the fourth inclined surface 504 of each crimping part 31 are arranged in sequence along the axial direction O of the dynamic damping part, and the third inclined surface 503 and the fourth inclined surface 504 on the same crimping part 31 are symmetrically arranged relative to the first plane.

[0078] Furthermore, there are two crimping members 31, spaced apart along the circumference of the dynamic damping member 20. This allows space for the crimping members 31 to approach each other when the first adjustment member 51 and the second adjustment member 52 move along the axial direction O of the dynamic damping member. Of course, the number of crimping members 31 can also be other. The case of other number of crimping members 31 is similar to the case of two crimping members, and will not be further described here.

[0079] In the embodiment of this application, Figure 2 and Figure 4, the hole wall of the through hole 11 is provided with an annular groove 111, and the groove 111 is arranged around the axis of the through hole 11. The outer surface of the dynamic damping member 20 is convexly provided with a damping portion 21, and the damping portion 21 extends into the groove 111, and the dynamic damping member 20 is sealed at the notch position of the groove 111 to define a damping chamber 40. The damping chamber 40 can contain a viscous liquid as a damping liquid, such as silicone oil. In this way, when the photovoltaic component drives the bearing seat 10 to rotate relative to the dynamic damping member 20 (fixed relative to the main beam), the viscous liquid will generate a damping force on the bearing seat 10. The damping force will change with the size of the wind. When the wind speed is high, the damping force is large, and when the wind speed is low, the damping force becomes smaller. The damping bearing 100 using this method allows the wind load to be directly applied to the main beam, thereby improving the system oscillation frequency of the tracking bracket and achieving real-time response. Therefore, the damping bearing 100 of the embodiment of the present application can adapt to various wind conditions and has high efficiency.

[0080] In a specific implementation, the bearing seat 10 may include a seat body 12 and a first end cap 13 and a second end cap 14 mounted on the left and right sides of the seat body 12. The seat body 12, the first end cap 13, and the second end cap 14 collectively define a groove 111. When the dynamic damping member 20 is mounted on the inner side of the bearing seat 10, the side surfaces of the dynamic damping member 20 and the side groove walls of the groove 111 are tightly fitted during relative rotation, and a sealing ring may be provided between the two. An injection hole 15 may also be provided on the seat body 12. The injection hole 15 is connected to the damping chamber 40 for supplying viscous liquid into and out of the damping chamber 40. A retaining valve (not shown) is connected to the injection hole 15 to maintain pressure balance between the interior and exterior of the damping chamber 40.

[0081] In the present application, continue to refer to Figure 4 , the side groove wall of the groove 111 is formed with a first step portion 1111, and the surface of the damping portion 21 opposite to the side groove wall is provided with a second step portion 1112 matching the first step portion 1111. In this way, part of the chamber of the damping cavity 40 forms a stepped space, the gap between the stepped damping surfaces is stable and fixed, and the damping value generated under a certain speed is constant, which is beneficial to the overall force of the tracking bracket. In other words, the gap between the stepped damping surfaces is stable and fixed. Due to the strong correlation between the damping force and the gap, the stepped damping structure is designed to ensure that the damping force is constant and controllable. Let the damping torque change only with the rotation speed, so that the tracking bracket can truly be strong when the wind is strong and weak when the wind is weak under wind conditions, and both efficiency and energy consumption are optimized.

[0082] Furthermore, a first step 1111 is provided on a pair of side groove walls of the groove 111 that are opposite to each other in the axial direction O of the dynamic damping member, and a second step 1112 is provided on a pair of surfaces of the damping portion 21 that are opposite to each other in the axial direction O of the dynamic damping member. This provides damping spaces at both ends of the dynamic damping member 20 in the axial direction O, further facilitating the viscous liquid to exert a balanced damping force on both sides of the axial direction O of the dynamic damping member 20.

[0083] In the embodiment of the present application, a gap exists between the top end of the damping portion 21 and the bottom wall of the groove 111, and a gear tooth structure 211 is formed at the top end of the damping portion 21. This tooth-shaped structure increases the contact area between the damping portion 21 and the viscous liquid, while also increasing viscous resistance. In a specific implementation, the gear tooth structure 211 can be provided around the entire circumference of the damping portion 21.

[0084] A second aspect of the embodiment of the present application further provides a tracking bracket (not shown), including a main beam and the aforementioned damping bearing 100 , wherein the main beam is connected to the mounting cavity 41 .

[0085] The tracking bracket of the embodiment of the present application can adjust the inclination angle of the photovoltaic module in real time so that the photovoltaic module faces the sun at any time, thereby effectively increasing the amount of solar radiation received by the photovoltaic module.

[0086] In the tracking bracket of the present embodiment, under normal operating conditions, due to the low speed, the damping bearing 100 generates a low damping torque. The motor, acting as the driving device, overcomes this damping torque and operates normally, ensuring the tracking function of the photovoltaic module. When strong winds strike, the tracking bracket shuts down for protection, causing the main beam to vibrate and sway. At high speeds, the damping bearing 100 generates a large damping torque to prevent the photovoltaic module from swaying in the wind.

[0087] The technical features of the above-mentioned embodiments can be combined arbitrarily. In order to make the description concise, not all possible combinations of the technical features in the above-mentioned embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0088] The above-described embodiments merely illustrate several implementations of the present invention, and while their descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent. It should be noted that a person skilled in the art would be able to make numerous variations and improvements without departing from the spirit of the present invention, all of which fall within the scope of protection of the present invention. Therefore, the scope of protection of the patent for this invention shall be determined by the appended claims.

Claims

1. A damping bearing, characterized in that: include: The bearing seat is constructed with a through hole; a dynamic damping member rotatably connected to the bearing seat and located inside the through hole, wherein the dynamic damping member and the hole wall of the through hole jointly define a damping chamber, and the dynamic damping member is constructed as an annular member; A crimping assembly is located inside the dynamic damping member, the crimping assembly includes at least two crimping members, the at least two crimping members are arranged along the circumference of the dynamic damping member and together define a mounting cavity for the main beam to pass through; as well as an adjustment assembly, sandwiched between the inner surface of the dynamic damping member and the crimping assembly, the adjustment assembly being configured to adjust a radial distance of at least one of the crimping members relative to the dynamic damping member to change a size of the mounting cavity; The hole wall of the through hole is provided with an annular groove, and the groove is arranged around the axis of the through hole; A damping portion is protruded from the outer surface of the dynamic damping member, and the damping portion extends into the groove. The dynamic damping member is sealed at the notch position of the groove to define a damping cavity; There is a distance between the top end of the damping portion and the bottom wall of the groove, and the top end of the damping portion is formed with a gear structure, and the gear structure is arranged around the entire circumference of the damping portion; A first step portion is formed on the side groove wall of the groove, and a second step portion matching the first step portion is provided on the surface of the damping portion opposite to the side groove wall, so that a part of the cavity of the damping cavity forms a stepped space.

2. The damping bearing according to claim 1, characterized in that: The adjustment assembly includes a first adjustment member and a second adjustment member located between the inner surface of the dynamic damping member and the crimping assembly, wherein the first adjustment member and the second adjustment member are sequentially connected along the axial direction of the dynamic damping member and their relative positions along the axial direction are adjustable; A longitudinal section of at least one of the first adjusting member and the second adjusting member along the radial direction of the dynamic damping member is configured as a wedge-shaped section.

3. The damping bearing according to claim 2, characterized in that: The first adjusting member and the second adjusting member are matched with the inclined surfaces of the pressing member facing the dynamic damping member.

4. The damping bearing according to claim 3, characterized in that: The surfaces of the first adjusting member and the second adjusting member facing the crimping member are respectively configured as a first inclined surface and a second inclined surface; The crimping member includes a third inclined surface matching the first inclined surface, and a fourth inclined surface matching the second inclined surface; The first inclined surface and the second inclined surface are symmetrically arranged with respect to a first plane, and the first plane is perpendicular to the axis of the dynamic damping member and passes through the axial center of the dynamic damping member.

5. The damping bearing according to claim 4, characterized in that: The first adjusting member and the second adjusting member are both configured as ring-shaped members; The first inclined surface and the second inclined surface are both configured as conical surfaces, each of the third inclined surfaces is located on the same conical surface, and each of the fourth inclined surfaces is also located on the same conical surface.

6. The damping bearing according to claim 4, characterized in that: The first adjusting member and the second adjusting member are matched with the inner surface of the dynamic damping member at an inclined surface.

7. The damping bearing according to claim 6, characterized in that: The surfaces of the first adjusting member and the second adjusting member facing the inner side surface of the dynamic damping member are respectively configured as a fifth inclined surface and a sixth inclined surface; The dynamic damping member includes a seventh inclined surface matching the fifth inclined surface, and an eighth inclined surface matching the sixth inclined surface; The fifth inclined surface and the sixth inclined surface are symmetrically arranged with respect to the first plane.

8. The damping bearing according to claim 7, characterized in that: The first adjusting member and the second adjusting member are both configured as ring-shaped members; The fifth inclined surface and the sixth inclined surface are both configured as conical surfaces, each of the seventh inclined surfaces is located on the same conical surface, and each of the eighth inclined surfaces is also located on the same conical surface.

9. The damping bearing according to any one of claims 2 to 8, characterized in that: The first adjusting member and the second adjusting member are connected by a fastener extending along the axial direction of the dynamic damping member.

10. The damping bearing according to any one of claims 4 to 8, characterized in that: The third inclined surface and the fourth inclined surface of each of the crimping members are sequentially arranged along the axial direction of the dynamic damping member; The third inclined surface and the fourth inclined surface on the same crimping member are symmetrically arranged relative to the first plane.

11. The damping bearing according to any one of claims 2 to 8, characterized in that: There are two pressing parts, and the two pressing parts are arranged at intervals along the circumference of the dynamic damping member.

12. The damping bearing according to claim 1, characterized in that: The first step portion is provided on a group of side groove walls of the groove that are opposite to each other along the axial direction of the dynamic damping member; The second step portions are respectively provided on a group of surfaces of the damping portion that are opposite to each other in the axial direction of the dynamic damping member.

13. A tracking bracket, characterized in that: It comprises a main beam and a damping bearing according to any one of claims 1 to 12, wherein the main beam is connected to the installation cavity.

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