CN116576190A - Bearing structure with damping and photovoltaic tracking support - Google Patents

Abstract

The invention provides a bearing structure with damping and a photovoltaic tracking bracket, and relates to the technical field of photovoltaic structures. The bearing structure with damping provided by the embodiment of the present invention has an axial direction, which includes a damping inner ring and a first end cover. The damping inner ring includes a main body and a first damping ring fixedly connected to the main body. to extend, and the main body is used to install the moving shaft. The first end cover includes an end cover part and a second damping ring fixedly connected to the end cover part, and the second damping ring extends along the axial direction. The first end cover is rotatably matched with the damping inner ring, and the first damping ring is plugged with the second damping ring to form a first damping gap, and the first damping gap is used to accommodate damping fluid, because the first damping ring and the second damping ring The second damping ring is annular, and the first damping gap formed in this way is annular around the axial distribution of the bearing structure with damping.

Description

A bearing structure with damping and photovoltaic tracking support

technical field

The invention relates to the technical field of photovoltaic structures, in particular to a bearing structure with damping and a photovoltaic tracking bracket.

Background technique

Photovoltaic tracking brackets are generally erected outdoors to support photovoltaic modules. They will encounter various weather conditions during use. Due to the long span of photovoltaic tracking brackets, they are vulnerable to buffeting, vortex vibration, and chattering when encountering strong winds. Disasters, thus causing damage to the photovoltaic tracking bracket and the photovoltaic modules installed on it.

At present, in order to improve this problem, some manufacturers have installed additional damping rods on both sides of the main square tube (also called the main beam) of the tracking bracket, and the damping rods provide counterforce against wind pressure. However, this method is inefficient , The response is slow, and it is prone to instability and failure when the wind load is too large. There are also some manufacturers that resist wind pressure by setting a damper at the driving part that drives the main square tube to rotate. For example, the application number is 201811629328.4, and the name is the invention application of the pin-rod viscous sliding bearing damper, but the damper passed Installing a large number of pin rods and silicon oil friction produces damping, resulting in production costs and assembly difficulties.

Contents of the invention

The object of the present invention is to provide a bearing structure with damping, which can improve the problems of low economy and difficult assembly in the prior art.

The purpose of the present invention is also to provide a photovoltaic tracking bracket, which can improve the problems of low economy and difficult assembly in the prior art.

Embodiments of the present invention can be achieved in the following ways:

A bearing structure with damping, the bearing structure with damping has an axial direction, which includes: a damping inner ring, the damping inner ring includes a main body and a first damping ring fixedly connected to the main body, the first a damping ring extending along the axial direction; the main body is used to install the moving shaft; and

A first end cover, the first end cover includes an end cover part and a second damping ring fixedly connected to the end cover part; the second damping ring extends along the axial direction;

Wherein, the first end cover is rotatably matched with the damping inner ring; the first damping ring is inserted into the second damping ring, and the first damping ring and the second damping ring form a The first damping gap; the first damping gap is used to accommodate damping fluid.

Optionally, the number of the first damping ring and the second damping ring is multiple, and the multiple first damping rings and the multiple second damping rings are They are distributed sequentially in the radial direction, and a plurality of the first damping rings and a plurality of the second damping rings are distributed in a staggered manner.

Optionally, the first damping ring is integrated with the main body; and/or,

The second damping ring is integrated with the end cap.

Optionally, the bearing structure with damping further includes a bearing seat, the first end cover is arranged between the bearing seat and the damping inner ring, and the first end cover is fixed to the bearing seat connect.

Optionally, the bearing seat is provided with a pressure valve hole communicating with the first damping gap.

Optionally, a second damping gap is formed between the first damping ring and the bearing seat, the second damping gap communicates with the first damping gap, and the second damping gap is used to accommodate the damping fluid.

Optionally, the end cover part has a first limiting step protruding radially outward, and the first limiting step abuts against one end of the bearing seat in the axial direction.

Optionally, the main body includes a moving shaft installation part and a raised part protruding from the outer peripheral surface of the moving shaft installation part, and the first damping ring is arranged on one axial side of the raised part; The bearing structure with damping further includes a second end cover, the second end cover is fixedly connected to the bearing housing, and the second end cover and the first end cover are respectively located on the axis of the raised portion. to the sides.

Optionally,

A first sealing ring is provided between the second end cover and the bearing seat; the end surface of the second end cover abuts against one axial end of the bearing seat, and the first sealing ring is located on the first Between the end face of the second end cover and the bearing seat;

A second sealing ring is arranged between the second end cover and the moving shaft installation part; the inner peripheral surface of the second end cover is in rotation fit with the outer peripheral surface of the moving shaft installation part, and the second sealing ring The ring is located between the inner peripheral surface of the second end cover and the outer peripheral surface of the moving shaft installation part. Optionally, the bearing structure with damping further includes a first bushing, the first bushing is arranged on the radially outer side of the raised portion, and is located between the bearing seat and the raised portion , so that the bearing seat is in rotational fit with the damping inner ring.

Optionally, the bearing structure with damping further includes a fourth sealing ring; the fourth sealing ring is located between the inner peripheral surface of the bearing seat and the outer peripheral surface of the first end cover.

Optionally, the bearing structure with damping further includes a second bushing, the second bushing is sleeved on the main body, and the second bushing is located between the main body and the end cover, so that the first end cap is rotatably matched with the damping inner ring;

Both axial ends of the second bushing are in contact with the damping inner ring and the first end cover respectively, so as to limit the axial positions of the damping inner ring and the first end cover.

Optionally, the radially inner end of the first end cap is provided with a second limiting step, and one axial end of the second sleeve abuts against the second limiting step; the second A third sealing ring is arranged between the limiting step and the main body.

A photovoltaic tracking bracket, the photovoltaic tracking bracket includes a column, a moving shaft and the above-mentioned bearing structure with damping, the moving shaft is used to install photovoltaic modules, and the moving shaft can rotate through the bearing structure with damping mounted on the column.

The beneficial effects of the bearing structure with damping and the photovoltaic tracking bracket provided by the embodiments of the present invention include:

The bearing structure with damping provided by the embodiment of the present invention has an axial direction, which includes a damping inner ring and a first end cover. The damping inner ring includes a main body and a first damping ring fixedly connected to the main body. The first damping ring is along the shaft to extend, and the main body is used to install the moving shaft. The first end cover includes an end cover part and a second damping ring fixedly connected to the end cover part, and the second damping ring extends along the axial direction. The first end cover is rotatably matched with the damping inner ring, and the first damping ring is plugged with the second damping ring, and a first damping gap is formed by the first damping ring and the second damping ring, and the first damping gap is used for accommodating Damping liquid is placed, because the first damping ring and the second damping ring are annular, the first damping gap formed in this way is annular around the axial distribution of the bearing structure with damping, due to the main The movement is the rotation around the axis of the orbiting shaft, and the movement direction is consistent with the movement direction of the damping fluid relative to the first damping ring in the first damping gap. Therefore, in the event of strong winds, the bearing structure with damping can produce sufficient damping To resist wind pressure, it has the technical effects of simple structure, low cost, good economy and easy assembly.

An embodiment of the present invention also provides a photovoltaic tracking bracket, which includes the above-mentioned bearing structure with damping, so it also has the ability to generate sufficient damping force through the bearing structure with damping in windy weather It is resistant to wind pressure, and at the same time it has the beneficial effects of simple structure, low cost, good economy and easy assembly.

Description of drawings

The above-mentioned features and advantages of the present invention can be better understood after reading the detailed description of the embodiments of the present disclosure in conjunction with the following drawings. In the drawings, components are not necessarily drawn to scale, and components with similar related properties or characteristics may have the same or similar reference numerals.

FIG. 1 shows a schematic diagram of the overall structure of a bearing structure with damping provided according to one aspect of the present invention;

Fig. 2 shows a schematic diagram of an exploded structure of a bearing structure with damping provided according to one aspect of the present invention;

Fig. 3 shows a schematic cross-sectional structure diagram of a bearing structure with damping provided according to one aspect of the present invention;

Fig. 4 shows a schematic cross-sectional structural view of a bearing structure with damping provided according to an aspect of the present invention under another viewing angle;

Fig. 5 shows a schematic cross-sectional structural diagram of a damping inner ring provided according to one aspect of the present invention;

Fig. 6 shows a schematic cross-sectional structure diagram of a first end cap provided according to an aspect of the present invention.

Reference signs:

100-bearing structure with damping; 110-damping inner ring; 111-main body; 112-moving shaft installation part; 113-protruding part; 114-first damping ring; 121-end cover; 122-second damping ring; 123-first limit step; 124-second limit step; 130-bearing seat; 131-pressure valve hole; 140-second end cover; 151-first 1 damping gap; 152-second damping gap; 153-first shaft sleeve; 154-second shaft sleeve; 155-first sealing ring; 156-second sealing ring; 157-third sealing ring; 158-fourth sealing ring.

Detailed ways

The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments. Note that the aspects described below in conjunction with the drawings and specific embodiments are only exemplary, and should not be construed as limiting the protection scope of the present invention.

In the description of the present invention, it should be noted that if the orientation or positional relationship indicated by the terms "upper", "lower", "inner", "outer" and "vertical" are based on the orientation or positional relationship shown in the drawings The positional relationship, or the orientation or positional relationship that the product of the invention is usually placed in use, does not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore cannot be construed as a reference to the invention. limits.

At the same time, it should be noted that if the terms “first” and “second” appear, they are only used for distinguishing descriptions, and should not be understood as indicating or implying relative importance.

In the description of the present invention, it should also be noted that, unless otherwise clearly specified or limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it may be a fixed connection or an integral connection , or detachably connected; may be mechanically connected, may also be electrically connected; may be directly connected, may also be indirectly connected through an intermediary, or internal communication between two components, etc. Those of ordinary skill in the art can understand the specific meanings of the above terms in the present invention depending on the specific circumstances.

Figure 1 shows a schematic diagram of the overall structure of the bearing structure 100 with damping provided in this embodiment, Figure 2 shows a schematic diagram of the exploded structure of the bearing structure 100 with damping provided in this embodiment, and Figure 3 shows a schematic diagram of the structure of the bearing structure 100 provided in this embodiment A schematic cross-sectional structure diagram of the damped bearing structure 100 is provided. Please refer to FIGS. 1-3 , the embodiment of the present invention provides a bearing structure 100 with damping, and correspondingly, a photovoltaic tracking support (not shown).

The photovoltaic tracking support includes a bearing structure 100 with damping, and also includes a column and a moving shaft. The moving shaft is used for installing photovoltaic modules. The moving shaft can also be called a main square tube, a main beam, and the like. The moving shaft is rotatably mounted on the column through a bearing structure 100 with damping. During installation, the column is fixed on the ground where the photovoltaic is laid out, etc., so as to provide rotational support for the moving shaft and the photovoltaic modules installed on the moving shaft.

The bearing structure 100 with damping has an axial direction and includes a damping inner ring 110 and a first end cover 120. The damping inner ring 110 includes a main body 111 and a first damping ring 114 fixedly connected to the main body 111. The first damping ring 114 is along the It extends axially, and the main body 111 is used for installing the moving shaft. The first end cap 120 includes an end cap portion 121 and a second damping ring 122 fixedly connected to the end cap portion 121 , and the second damping ring 122 extends in the axial direction. The first end cover 120 is rotatably matched with the damping inner ring 110, and the first damping ring 114 is inserted into the second damping ring 122, and the first damping gap 151 is formed by the first damping ring 114 and the second damping ring 122, and the second A damping gap 151 is used for accommodating damping fluid.

Fig. 4 shows the cross-sectional structure of the bearing structure 100 with damping provided in this embodiment at another viewing angle, specifically, the cross-sectional structure shown in Fig. 4 is cut through a plane perpendicular to the axis L of the bearing structure 100 with damping As can be seen, the cross-sectional structure shown in FIG. 3 is obtained through a plane cross-section through the axis of the damped bearing structure 100 . Please refer to Fig. 1-Fig. 4 in combination, since the first damping ring 114 and the second damping ring 122 are annular, the first damping gap 151 formed in this way is annular around the axial distribution of the bearing structure 100 with damping, due to the photovoltaic tracking The main activity of the bracket when it suffers from wind-induced disasters is the rotation around the axis of the orbiting shaft. This movement direction is consistent with the movement direction of the damping fluid relative to the first damping ring 114 in the first damping gap 151. On the one hand, it can ensure that the damping force generated Real-time, to avoid the risk of damage caused by the lag of the damping force when resisting wind resistance. On the other hand, the first damping gap 151 is annular, and the direction of damping force generation is consistent with the rotation direction of the bracket. The first damping ring 114 can generate damping at the same time force to increase the damping force. Therefore, in windy weather, the bearing structure 100 with damping can generate a large enough damping force to resist wind pressure, and meanwhile it has the technical effects of simple structure, low cost, good economy and easy assembly. Further, when the bearing structure 100 with damping is applied to the photovoltaic tracking support, since the bearing structure 100 with damping can generate a sufficiently large damping force in real time, it can effectively absorb shock and resist wind when the photovoltaic tracking support is subjected to strong winds and other conditions. pressure, which helps to improve the running stability of the photovoltaic tracking bracket.

FIG. 5 shows a schematic cross-sectional structural view of the damping inner ring 110 provided in this embodiment. Please refer to Fig. 1-Fig. 5 in combination. In this embodiment, the damping inner ring 110 includes a main body 111 and a first damping ring 114 arranged on the main body 111. A through hole 115 is defined at the center of the shaft mounting portion 112 for the drive shaft to pass through. The main body 111 also includes a protruding portion 113 protruding from the outer peripheral surface of the moving shaft installation portion 112 , the protruding portion 113 is annular, and the first damping ring 114 is disposed on one axial side of the protruding portion 113 .

Optionally, the first damping ring 114 and the main body 111 are integrally structured, which on the one hand further simplifies the structure, helps to reduce costs and improve economy, and on the other hand ensures the positional stability of the first damping ring 114 and the main body 111, It helps to ensure the stability of the first damping gap 151, thereby ensuring the stability of the damping force. Optionally, the first damping ring 114 and the main body 111 may be integrally formed by machining or the like, or may be an integral structure formed by welding or the like.

The number of first damping rings 114 is multiple, and the plurality of first damping rings 114 are distributed along the radial interval of the raised portion 113 , that is, the plurality of first damping rings 114 are arranged between the raised portion 113 and the first end cover 120 On one side of the mating wall surface, along the radially outward direction of the protrusion 113 on the wall surface, the radial size of the first damping ring 114 located on the radially inner side is smaller than that of the first damping ring 114 located on the radially outer side. Radial dimension. Optionally, in this embodiment, the number of first damping rings 114 is three, wherein the innermost one is connected to the outer peripheral surface of the moving shaft installation part 112, in other words, the innermost first damping ring 114 is also It can be regarded as that the outer peripheral surface of the moving shaft installation portion 112 protrudes.

It should be noted that, in this embodiment, the components in the bearing structure 100 with damping are arranged coaxially, that is, the axes of each component coincide with the axis L of the bearing structure 100 with damping. In other words, in the description of this embodiment The “axial direction” of a component mentioned can be regarded as the extension direction of the axis L, and at the same time, the “radial dimension” mentioned later refers to the distance between it and the axis L. Moreover, in the description of this embodiment, "inner" and "outer" refer to the directions relative to the axis L, for example, the inner side is the side close to the axis L in the radial direction, and the outer side is the side away from the axis L in the radial direction .

FIG. 6 shows a schematic cross-sectional structure diagram of the first end cap 120 provided in this embodiment. Please refer to FIGS. 1-6 in combination. In this embodiment, the first end cover 120 includes an end cover portion 121 and a second damping portion. The end cover part 121 has a ring structure, which is sleeved on the moving shaft installation part 112, and is rotatably matched with the moving shaft installation part 112. The second damping part is arranged on one side of the end cover part 121 in the axial direction. During the process of inserting the damping inner ring 110 in the axial direction, the second damping part is inserted into the first damping part to form a first damping gap 151 .

Optionally, the second damping ring 122 and the end cap part 121 are integrally structured, thereby further simplifying the structure, helping to reduce costs and improving economy, while ensuring the positional stability of the second damping ring 122 and the end cap part 121 , helps to ensure the stability of the first damping gap 151, thereby ensuring the stability of the damping force. Optionally, the second damping ring 122 and the end cap part 121 may be integrally formed by machining or other means, or may be an integral structure formed by welding or other means.

The number of second damping rings 122 is multiple, and the plurality of second damping rings 122 are distributed along the radial interval of the end cover part 121, that is, along the radial direction on the side wall surface of the end cover part 121 and the protrusion part 113. In the outward direction, the radial dimension of the second damping ring 122 located on the radially inner side is larger than the radial dimension of the second damping ring 122 located on the radially outer side. A plurality of second damping rings 122 and a plurality of first damping rings 114 are alternately distributed, so that the first damping rings 114 and the second damping rings 122 form a serpentine first damping section as shown in FIG. 3 . Gap 151. Optionally, in this embodiment, there are two second damping rings 122 .

In this embodiment, the bearing structure 100 with damping further includes a second sleeve 154, which is sleeved on the main body 111 and located between the main body 111 and the end cover part 121, so that the first end cover 120 is rotationally matched with the damping inner ring 110 . Specifically, the second shaft sleeve 154 is sleeved on the outer periphery of the rotating shaft installation portion. Optionally, the second shaft sleeve 154 is a copper sleeve.

Further, the axial ends of the second bushing 154 abut and fit with the damping inner ring 110 and the first end cover 120 respectively, so as to limit the axial positions of the damping inner ring 110 and the first end cover 120 . Specifically, one axial end of the second sleeve 154 abuts against one end of the innermost first damping ring 114 . Further, the radially inner end of the first end cover 120 is provided with a second limiting step 124, and the other axial end of the second bushing 154 abuts against the second limiting step 124 to limit the damping inner ring. 110 and the limit of the axial position of the first end cover 120. Further, a third sealing ring 157 is disposed between the second limiting step 124 and the main body 111 , and the third sealing ring 157 forms a seal to prevent the damping fluid from overflowing from between the first end cover 120 and the damping inner ring 110 . Specifically, a sealing groove for accommodating the third sealing ring 157 is disposed on the second limiting step 124 .

Please continue to refer to Fig. 1-Fig. 6, in this embodiment, the bearing structure 100 with damping also includes a bearing seat 130, the first end cover 120 is arranged between the bearing seat 130 and the damping inner ring 110, and the first end The cover 120 is fixedly connected with the bearing seat 130 . Specifically, the bearing seat 130 has a ring structure, the first end cover 120 and the damping inner ring 110 are arranged inside the ring structure, and the bearing seat 130 covers the radial outside of the first damping ring 114 and the second damping ring 122, through The bearing housing 130 closes the damping gap.

Further, a second damping gap 152 is formed between the first damping ring 114 and the bearing housing 130 , the second damping gap 152 communicates with the first damping gap 151 , and the second damping gap 152 is also used to accommodate damping fluid. Specifically, in this embodiment, in the damping structure formed by the first damping ring 114 and the second damping ring 122, one of the first damping rings 114 is located at the outermost side of the damping structure, so that when the bearing housing 130 covers the damping structure When the radial outer side of the first damping ring 114 and the bearing seat 130 can form the second damping gap 152 communicating with the first damping gap 151, so when the radial dimension of the damping structure is fixed, more Correspondingly, the contact area between the damping inner ring 110 and the damping fluid is larger, which helps to generate greater damping force.

In this embodiment, the bearing seat 130 is also provided with a pressure valve hole 131 communicating with the first damping gap 151. During installation, excess damping fluid and air in the damping gap can be discharged from the pressure valve hole 131, and at the same time During use, if there is insufficient damping fluid, the damping fluid can also be filled through the pressure valve hole 131 to avoid a large amount of work caused by disassembling the damped bearing structure 100 . Specifically, since the second damping gap 152 is formed between the bearing seat 130 and the first damping ring 114 , the pressure valve hole 131 provided on the bearing seat 130 communicates with the first damping gap 151 through the second damping gap 152 . At the same time, in order to ensure that the damping fluid filled into the second damping gap 152 from the pressure valve hole 131 can smoothly enter the first damping gap 151 , the gap width of the second damping gap 152 is set to be larger than the gap width of the first damping gap 151 . Specifically, the second damping gap 152 is a gap formed between the boss provided on the bearing seat 130 and the first damping ring 114 located on the radially outermost side, and the gap width of the second damping gap 152 is controlled by setting the height of the boss. greater than the gap width of the first damping gap 151 .

As shown in Fig. 3 and Fig. 6, the end cover part 121 has a first limiting step 123 protruding radially outward, and the first limiting step 123 abuts and fits with one end of the bearing seat 130 in the axial direction, so that the bearing The axial position of the seat 130 is limited. Specifically, the first limiting step 123 is located at the radially outer end of the end cover portion 121, and the damped bearing structure also includes connecting bolts, which pass through the first limiting step 123 and connect with the bearing seat 130, thereby connecting the first The end cover 120 is locked and fixed on the bearing seat 130 . Further, a fourth sealing ring 158 is disposed between the end cover portion 121 and the bearing seat 130 , and the fourth sealing ring 158 forms a seal to prevent the damping fluid from overflowing from the gap between the end cover portion 121 and the bearing seat 130 . Specifically, the fourth sealing ring 158 is located between the inner peripheral surface of the bearing seat 130 and the outer peripheral surface of the end cover part 121. It can be understood that in other embodiments, the fourth sealing ring can also be arranged between the bearing seat 130 and the outer peripheral surface of the end cover part 121. Other positions where the end cover part 121 is matched. Optionally, a sealing groove for accommodating the fourth sealing ring 158 is disposed on the end cover portion 121 .

Please refer to FIG. 1-FIG. 6 again. In this embodiment, the bearing structure 100 with damping further includes a first bushing 153. The first bushing 153 is arranged on the radially outer side of the protruding portion 113 and is located on the protruding portion 113. Between the portion 113 and the bearing seat 130 , the rotational fit between the bearing seat 130 and the damping inner ring 110 is realized. Specifically, in this embodiment, the radial dimension of the first bushing 153 is greater than the radial dimension of the second bushing 154 . Optionally, the first shaft sleeve 153 includes but is not limited to copper sleeve.

In this embodiment, the bearing structure 100 with damping further includes a second end cover 140, the second end cover 140 is fixedly connected with the bearing seat 130, and the second end cover 140 and the first end cover 120 are respectively located on the raised portion 113 on both sides of the axial direction. Specifically, the second end cover 140 is an annular plate-shaped member, which is fixedly connected with the bearing seat 130 through connecting bolts, and at the same time, through the joint action of the first end cover 120 and the second end cover 140, the damping inner ring 110 The axial position remains fixed.

Further, the end surface of the second end cover 140 abuts against one axial end of the bearing seat 130 , so that the axial position of the bearing seat 130 is limited by the second end cover 140 and the first limiting step 123 . At the same time, one axial end of the first sleeve 153 abuts against the second end cover 140 . A first sealing ring 155 is arranged between the second end cover 140 and the bearing seat 130. In this embodiment, the first sealing ring 155 is located between the axial end surface of the second end cover 140 and the bearing seat 130, and passes through the second end cover 140 and the bearing seat 130. A sealing ring 155 forms a seal to prevent the damping fluid from overflowing from between the second end cover 140 and the bearing seat 130 . Specifically, a sealing groove for accommodating the first sealing ring 155 is disposed on one axial end surface of the second end cover 140 .

Further, a second sealing ring 156 is provided between the second end cover 140 and the damping inner ring 110 to form a seal through the second sealing ring 156 to prevent the damping liquid from flowing between the second end cover 140 and the damping inner ring 110 . Gap overflow. In this embodiment, the inner peripheral surface of the second end cover 140 is rotatably matched with the outer peripheral surface of the moving shaft installation part 112 , and the second sealing ring 156 is arranged on the inner peripheral surface of the second end cover 140 and the outer peripheral surface of the moving shaft installation part 112 . at the outer periphery. Specifically, a sealing groove for accommodating the second sealing ring 156 is disposed on the second end cover 140 .

In the bearing structure 100 with damping provided by the embodiment of the present invention, the damping inner ring 110, the second end cover 140, the bearing housing 130, the first sealing ring 155 and the second sealing ring 156 are first assembled together, and then the The assembled structure is turned over to the state where the axis extends in the up-down direction. At this time, the second end cover 140 is set downward, and correspondingly, the first damping ring 114 is set upward, and then the adjacent first damping ring 114 is placed The annular space is filled with damping fluid, and the first end cover 120 is installed from top to bottom. During the installation process, the second damping ring 122 is inserted between the adjacent first damping rings 114, and the adjacent first damping ring 114 The air and damping fluid in between are squeezed into the second damping gap 152 and discharged from the pressure valve hole 131 , and finally the first end cover 120 and the bearing seat 130 are fixedly connected together, and the assembly is completed.

The bearing structure 100 with damping and the photovoltaic tracking support provided by the embodiment of the present invention form an annular damping gap distributed around the rotation axis (namely axis L) of the damping inner ring 110 by setting the first damping ring 114 and the second damping ring 122 (including the first damping gap 151 and the second damping gap 152), effectively generating sufficient damping force in real time through a simple structure to resist wind resistance, on the basis of improving the operational stability of the photovoltaic tracking bracket and reducing the impact of wind-induced disasters, The economy of the photovoltaic tracking bracket is guaranteed. Moreover, since the relative axial and radial positions of the first damping ring 114 and the second damping ring 122 are fixed, the stability of the damping gap is ensured. The inventors found that the damping force generated by the bearing structure 100 with damping is the same as The first damping ring 114 is related to the contact area of the damping fluid, the size of the damping gap, and the rotational speed. By ensuring that the contact area and the size of the damping gap remain unchanged during operation, it is ensured that the belt The damping force generated by the damped bearing structure 100 is constant, which can effectively ensure that the damped bearing structure 100 can generate sufficient damping force to resist wind resistance and ensure the running stability of the photovoltaic tracking bracket.

The above is only a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any person skilled in the art can easily think of changes or substitutions within the technical scope disclosed in the present invention. All should be covered within the protection scope of the present invention.

Claims (14)

1. A bearing structure with damping, the bearing structure with damping has an axial direction, it is characterized in that, the bearing structure with damping includes: a damping inner ring, the damping inner ring includes a main body and a first damping ring fixedly connected to the main body, the first damping ring extends along the axial direction; the main body is used for installing a moving shaft; and A first end cover, the first end cover includes an end cover part and a second damping ring fixedly connected to the end cover part; the second damping ring extends along the axial direction; Wherein, the first end cover is rotatably matched with the damping inner ring; the first damping ring is inserted into the second damping ring, and the first damping ring and the second damping ring form a The first damping gap; the first damping gap is used to accommodate damping fluid. 2. The bearing structure with damping according to claim 1, characterized in that: There are multiple first damping rings and multiple second damping rings, and the multiple first damping rings and the multiple second damping rings are sequentially distributed along the radial direction of the bearing structure with damping , and a plurality of the first damping rings and a plurality of the second damping rings are alternately distributed. 3. The bearing structure with damping according to claim 1, characterized in that: The first damping ring is integrated with the main body; and/or, The second damping ring is integrated with the end cap. 4. The bearing structure with damping according to claim 1, characterized in that: The bearing structure with damping further includes a bearing seat, the first end cover is arranged between the bearing seat and the damping inner ring, and the first end cover is fixedly connected to the bearing seat. 5. The bearing structure with damping according to claim 4, characterized in that: A pressure valve hole communicating with the first damping gap is arranged on the bearing seat. 6. The bearing structure with damping according to claim 4, characterized in that: A second damping gap is formed between the first damping ring and the bearing seat, the second damping gap communicates with the first damping gap, and the second damping gap is used to accommodate the damping fluid. 7. The bearing structure with damping according to claim 4, characterized in that: The end cover portion has a first limiting step protruding radially outward, and the first limiting step abuts against one end of the bearing seat in the axial direction. 8. The bearing structure with damping according to claim 4, characterized in that: The main body includes a moving shaft installation part and a protrusion protruding from the outer peripheral surface of the moving shaft installation part, and the first damping ring is arranged on one axial side of the protrusion; the damping The bearing structure further includes a second end cover, the second end cover is fixedly connected to the bearing seat, and the second end cover and the first end cover are respectively located on both axial sides of the protrusion. 9. The bearing structure with damping according to claim 8, characterized in that: A first sealing ring is provided between the second end cover and the bearing seat; the end surface of the second end cover abuts against one axial end of the bearing seat, and the first sealing ring is located on the first Between the end face of the second end cover and the bearing seat; A second sealing ring is arranged between the second end cover and the moving shaft installation part; the inner peripheral surface of the second end cover is in rotation fit with the outer peripheral surface of the moving shaft installation part, and the second sealing ring The ring is located between the inner peripheral surface of the second end cover and the outer peripheral surface of the moving shaft installation part. 10. The bearing structure with damping according to claim 8, characterized in that: The bearing structure with damping also includes a first sleeve, the first sleeve is arranged on the radially outer side of the protrusion, and is located between the bearing seat and the protrusion, so that the The bearing seat is rotatably matched with the damping inner ring. 11. The bearing structure with damping according to claim 4, characterized in that: The bearing structure with damping also includes a fourth sealing ring; the fourth sealing ring is located between the inner peripheral surface of the bearing seat and the outer peripheral surface of the first end cover. 12. The bearing structure with damping according to claim 1, characterized in that: The bearing structure with damping also includes a second sleeve, the second sleeve is sleeved on the main body, and the second sleeve is located between the main body and the end cover, so that the The first end cover is rotatably matched with the damping inner ring; Both axial ends of the second bushing are in contact with the damping inner ring and the first end cover respectively, so as to limit the axial positions of the damping inner ring and the first end cover. 13. The bearing structure with damping according to claim 12, characterized in that: The radially inner end of the first end cap is provided with a second limiting step, and one axial end of the second sleeve abuts against the second limiting step; the second limiting step is in contact with the second limiting step. A third sealing ring is arranged between the main bodies. 14. A photovoltaic tracking bracket, characterized in that: The photovoltaic tracking support includes a column, a moving shaft and a bearing structure with damping according to any one of claims 1-13, the moving shaft is used for installing photovoltaic modules, and the moving shaft passes through the damping The bearing structure is rotatably mounted on the column.