Split type damping bearing and photovoltaic tracking support

Abstract

The utility model provides a split type damping bearing and a photovoltaic tracking support. The damping bearing comprises a supporting part and a damping part. The supporting part comprises a bearing inner ring and a bearing outer ring which are sleeved inside and outside, and the bearing inner ring and the bearing outer ring can be matched in a relatively rotating manner; the damping part comprises a damping inner ring and a damping outer ring which are sleeved inside and outside, the damping inner ring and the damping outer ring can be matched in a relatively rotating mode, a damping cavity is formed between the damping inner ring and the damping outer ring, and the damping cavity is used for containing damping liquid; the supporting part and the damping part are arranged in the axial direction, and the relative positions of the supporting part and the damping part in the circumferential direction are fixed.

Description

TECHNICAL FIELD

[0001] The utility model relates to bearing technical field, specifically, a split type damping bearing and photovoltaic tracking support. BACKGROUND

[0002] The photovoltaic assembly is used for receiving light energy and converting the light energy into electric energy. The photovoltaic assembly is supported by a photovoltaic tracking support. The photovoltaic tracking support can drive the photovoltaic assembly to rotate to track the position of the sun, so that the photovoltaic assembly always faces the sun, thereby maximizing the solar radiation receiving efficiency of the photovoltaic panel. Most of the photovoltaic tracking supports at present are flat single-axis systems, which include a driving system, a main shaft, a column, a purlin, a bearing and various connecting pieces. The main shaft is arranged in the center of the bearing, and the driving system drives the main shaft to rotate, so that the photovoltaic assembly can adapt to the direction of light. In this process, the bearing rotates by 360 degrees.

[0003] The tracking movement of the photovoltaic tracking support to the sun needs to be accurately and stably controlled. However, in a high wind pressure area, the photovoltaic tracking support is easily affected by wind force. The longer the span of the photovoltaic tracking support is, the greater the influence of the wind force is. The photovoltaic tracking support may produce buffeting, vortex vibration and fluttering due to wind force, which causes unnecessary shaking and rotation of the main shaft in the bearing, so that the rotating torque of the load borne by the bearing is large, and accidents of bearing failure are prone to occur.

[0004] In order to improve the above problems, a damping bearing is arranged in the photovoltaic tracking support. The column and the main beam of the photovoltaic tracking support are rotationally connected through the damping bearing. The damping effect of the damping bearing can effectively reduce structural vibration and ensure the stability of the photovoltaic panel, thereby improving energy output. However, the damping bearing structure at present is complex, and the damping force is unstable. When the damping bearing only bears rotary resistance, the reliability of the damping bearing is good. However, the damping bearing bears a large axial force and a certain radial force in the photovoltaic tracking support. The existence of the two forces has a significant impact on the sealing design of the damping liquid in the damping bearing. Long-time operation of the damping bearing in the photovoltaic tracking support will cause the damping liquid to leak and the damping to disappear. UTILITY MODEL CONTENTS

[0005] The utility model aims at least to provide a split type damping bearing and photovoltaic tracking support, which greatly improves the reliability of the damping bearing in long-time operation.

[0006] The following gives a brief summary of one or more aspects to provide a basic understanding of these aspects. The summary is not an exhaustive overview of all contemplated aspects, and neither is it intended to identify key or critical elements of all aspects nor to delineate the scope of any or all aspects. Its only purpose is to present some concepts of one or more aspects in a simplified form, as a prelude to the more detailed description given later.

[0007] One of the embodiments of the utility model provides a split type damping bearing, and the damping bearing comprises a supporting part and a damping part; the supporting part comprises a bearing inner ring and a bearing outer ring which are sleeved inside and outside, and the bearing inner ring and the bearing outer ring are relatively rotatable; the damping part comprises a damping inner ring and a damping outer ring which are sleeved inside and outside, and the damping inner ring and the damping outer ring are relatively rotatable, and the damping inner ring and the damping outer ring have a damping cavity between them, and the damping cavity is used for accommodating damping liquid; the supporting part and the damping part are arranged along the axial direction, and the relative position of the supporting part and the damping part in the circumferential direction is fixed.

[0008] In some embodiments, the supporting part comprises a bearing seat, and the bearing outer ring is fixed in the bearing seat; the damping part comprises a damping shell, and the damping outer ring is fixed in the damping shell, and the bearing seat and the damping shell are detachably connected in the axial direction.

[0009] In some embodiments, the bearing seat is provided with a bushing along the axial direction, the damping shell is provided with a plug along the axial direction, and the plug is inserted into the bushing along the axial direction.

[0010] In some embodiments, the bushing provided on the bearing seat and the plug provided on the damping shell are one-to-one corresponding, the bearing seat is provided with a plurality of bushings, and the damping shell is provided with a plurality of plugs.

[0011] In some embodiments, a damping sheet is arranged in the damping cavity, and the damping sheet has a radial gap between the damping inner ring or the damping outer ring.

[0012] In some embodiments, the damping sheet comprises a plurality of first damping sheets and a plurality of second damping sheets, the plurality of first damping sheets and the plurality of second damping sheets are arranged in the axial direction in a staggered manner, and the first damping sheet and the second damping sheet have an axial gap therebetween.

[0013] In some embodiments, the first damping sheet is provided with a first stop opening, the damping inner ring is provided with a first groove, the first groove is matched with the first stop opening to limit the movement of the first damping sheet in the circumferential direction relative to the damping inner ring; and / or the second damping sheet is provided with a second stop opening, the damping outer ring is provided with a second groove, and the second groove is matched with the second stop opening to limit the movement of the second damping sheet in the circumferential direction relative to the damping outer ring.

[0014] In some embodiments, the damping part comprises an end cover, the end cover is located between the damping inner ring and the damping outer ring, the end cover comprises a first side wall with a radial dimension, and the first side wall and the damping inner ring and the damping shell jointly define the damping cavity.

[0015] In some embodiments, the end cover comprises a second side wall with an axial dimension, the second side wall is away from the damping cavity relative to the first side wall, and a first skeleton seal is arranged between the second side wall and the damping inner ring.

[0016] In some embodiments, a second skeleton seal is arranged between the damping housing and the damping inner ring, and the first skeleton seal and the second skeleton seal are located on two sides of the damping cavity in the axial direction.

[0017] In some embodiments, in the axial direction, a ball is arranged between the damping cavity and the second skeleton seal, the damping inner ring and the damping housing cooperatively define a ball groove, the ball is arranged in the ball groove and can roll in the ball groove, so that the damping inner ring and the damping housing are rollingly connected.

[0018] In some embodiments, in the axial direction, a sealing ring is arranged between the damping cavity and the ball, and the sealing ring is defined between the damping inner ring and the damping housing to seal the damping inner ring and the damping housing.

[0019] The utility model embodiment further provides a photovoltaic tracking support, the photovoltaic tracking support includes a stand, a main shaft and the split type damping bearing as described above, the bearing outer ring of support part and the damping outer ring of damping part are fixed relative to the stand, the bearing inner ring of support part and the damping inner ring of damping part are fixed relative to the main shaft, to realize the rotatable connection of main shaft and stand through split type damping bearing.

[0020] The split type damping bearing and the photovoltaic tracking support disclosed by the utility model are split type, and the damping part and the support part are split. The support part bears the axial force and the radial force of the photovoltaic tracking support, and the damping part only provides damping force for the photovoltaic tracking support and does not bear the axial force and the radial force, thereby guaranteeing the reliability of the damping liquid sealing structure in the damping part, reducing the risk of damping liquid leakage and avoiding the disappearance of damping force caused by damping liquid leakage. The existence of the two forces will have a significant impact on the sealing design of the damping liquid in the damping bearing, and long-time operation of the damping bearing in the photovoltaic tracking support will cause the damping liquid to leak and the damping force to disappear. BRIEF DESCRIPTION OF DRAWINGS

[0021] The above features and advantages of the utility model will be better understood after reading the detailed description of the embodiments of the utility model in conjunction with the following drawings. In the drawings, the components are not necessarily drawn to scale, and the components having similar related properties or features can have the same or similar reference numerals. Among them:

[0022] Figure 1 It is the overall structure schematic diagram of split type damping bearing shown according to some embodiments;

[0023] Figure 2 It is the longitudinal section schematic diagram of damping part shown according to some embodiments;

[0024] Figure 3 It is the explosion structure schematic diagram of damping part shown according to some embodiments;

[0025] Figure 4is a structural schematic diagram of the first damping sheet and the second damping sheet according to some embodiments. DETAILED DESCRIPTION

[0026] The utility model will be described in detail below in combination with the drawings and specific embodiments. Note that the aspects described below in combination with the drawings and specific embodiments are only exemplary and should not be understood as limiting the scope of protection of the utility model in any way.

[0027] It can be understood that the technical terms involved in the description of the present specification, such as "center", "longitudinal", "transverse", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the embodiments, and do not indicate or imply that the devices or elements referred to must have a particular orientation or be constructed and operated in a particular orientation, and therefore should not be understood as limiting the scope of protection of the utility model.

[0028] It should be noted that the terms "first", "second", and the like used in the text to limit the features are only for the convenience of distinguishing the corresponding features, and the above terms have no special meaning unless otherwise stated, and therefore should not be understood as limiting the scope of protection of the utility model.

[0029] In the description of the present specification, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounting", "connection", and "connection" should be understood broadly, for example, it can be a fixed connection, it can be integrally connected, or it can be detachably connected; it can be a mechanical connection, or it can be an electrical connection; it can be directly connected, or it can be indirectly connected through an intermediate medium, or the connection between two elements inside, etc. For those skilled in the art, the specific meaning of the above terms in the present specification can be understood according to the specific circumstances.

[0030] Figure 1 is a structural schematic diagram of the first damping sheet and the second damping sheet according to some embodiments.

[0031] As Figure 1As shown, the split damping bearing 100 includes a support part 110 and a damping part 120, and the support part 110 and the damping part 120 are arranged separately. In some embodiments, the split damping bearing 100 is applied to a photovoltaic tracking support, and the photovoltaic tracking support further includes a column and a main shaft, the support part 110 is used to support the main shaft, and the damping part 120 is used to provide damping to keep the main shaft stable relative to the column. The embodiments of the present specification arrange the support part 110 and the damping part 120 separately, so that the support part 110 bears the axial force and the radial force generated by the rotation and shaking of the main shaft, and the damping part 120 only bears the rotary damping force, which is beneficial to ensure the stable operation of the damping part 120 and greatly improve the reliability of the damping system in the damping bearing. It should be noted that the axial direction of the present specification refers to the direction along the axis of the main shaft, the radial direction refers to the direction along the radius of the main shaft, and the circumferential direction refers to the direction around the axis of the main shaft.

[0032] The present specification takes the split damping bearing 100 applied to the photovoltaic tracking support as an example to describe the use, role and effect of the split damping bearing 100. It can be understood that the split damping bearing 100 can also be applied to other similar devices.

[0033] The support part 110 includes a bearing inner ring 111 and a bearing outer ring (not shown in the figure) arranged inside and outside, and the bearing inner ring 111 and the bearing outer ring are relatively rotatable. The damping part 120 includes a damping inner ring 121 and a damping outer ring (not shown) arranged inside and outside, and the damping inner ring 121 and the damping outer ring are relatively rotatable. Figure 1 The support part 110 and the damping part 120 are arranged in the axial direction, and the relative position of the support part 110 and the damping part 120 in the circumferential direction is fixed. In some embodiments, when the split damping bearing 100 is applied to the photovoltaic tracking support, the bearing outer ring and the damping outer ring are fixed relative to the column, the bearing inner ring 111 and the damping inner ring 121 are fixed relative to the main shaft, and the bearing inner ring 111 and the damping inner ring 121 can rotate synchronously. The split damping bearing 100 realizes the rotatable connection of the main shaft and the column, the column is used to support the main shaft, the main shaft is used to mount the photovoltaic module, and the rotation of the main shaft relative to the column drives the photovoltaic module to adjust the solar angle, thereby ensuring the photovoltaic power generation efficiency.

[0034] In some embodiments, the bearing inner ring 111 and the damping inner ring 121 have through holes matched with the cross section of the main shaft. For example, the main shaft is a square tube, and the bearing inner ring 111 and the damping inner ring 121 have square through holes, and the main shaft is inserted into the square through holes.

[0035] In some embodiments, the support part 110 comprises a bearing seat 112, a bearing outer ring is fixed in the bearing seat 112, and a bearing inner ring 111 is rotatable relative to the bearing seat 112, and the bearing inner ring 111, the bearing outer ring and the bearing seat 112 are sequentially sleeved from inside to outside. In some embodiments, the damping part 120 comprises a damping housing 122, a damping outer ring is mounted in the damping housing 122, and a damping inner ring 121 is rotatable relative to the damping housing 122, and the damping inner ring 121, the damping outer ring and the damping housing 122 are sequentially sleeved from inside to outside. The bearing seat 112 and the damping housing 122 are detachably connected in the axial direction, and the bearing inner ring 111 and the damping inner ring 121 rotate synchronously.

[0036] In some embodiments, referring to Figure 1 , the bearing seat 112 is provided with a socket 113 in the axial direction, the damping housing 122 is provided with a plug rod 123 in the axial direction, and the plug rod 123 is axially inserted into the socket 113. In some embodiments, the cross section of the plug rod 123 is polygonal, the socket 113 is a polygonal through hole matched with the cross section of the plug rod 123, and the plug rod 123 and the socket 113 are relatively fixed in the circumferential direction to keep the bearing seat 112 and the damping housing 122 relatively fixed in the circumferential direction, so that the bearing inner ring 111 and the damping inner ring 121 can rotate synchronously. In some embodiments, after the plug rod 123 is inserted into the socket 113, the plug rod 123 is connected to the bearing seat 112 through a screw rod to keep the bearing seat 112 and the damping housing 122 relatively fixed in the circumferential direction. In some embodiments, the socket 113 provided on the bearing seat 112 corresponds to the plug rod 123 provided on the damping housing 122 one by one, a plurality of sockets 113 are provided on the bearing seat 112, and a plurality of plug rods 123 are provided on the damping housing 122 to keep the bearing seat 112 and the damping housing 122 relatively fixed in the circumferential direction. In some embodiments, the plurality of sockets 113 are uniformly distributed on the bearing seat 112, and the plurality of plug rods 123 are uniformly distributed on the damping housing 122.

[0037] Figure 2 is a longitudinal section view of the damping part according to some embodiments. Figure 3 is an exploded structural view of the damping part according to some embodiments. The longitudinal section of the damping part 120 is the section of the damping part 120 cut by a plane parallel to the axial direction.

[0038] As Figure 2 shown, the damping inner ring 121 and the damping outer ring Figure 2A damping cavity 124 is provided between (not shown) to contain damping fluid. In some embodiments, the damping fluid includes, but is not limited to, silicone oil or other liquid oils capable of generating viscous resistance. In some embodiments, a damping plate 125 is disposed within the damping cavity 124, and a radial gap exists between the damping plate 125 and the inner damping ring 121 or the outer damping ring. The damping fluid fills the entire damping cavity 124 through the radial gap. In some embodiments, the damping plate 125 is disposed circumferentially within the damping cavity 124 to ensure that the inner damping ring 121 can rotate relative to the outer damping ring. By providing the damping plate 125 within the damping cavity 124, the viscous resistance generated when the inner damping ring 121 rotates relative to the outer damping ring can be increased, thereby enhancing the damping force provided by the damping section 120 to the spindle.

[0039] In some embodiments, such as Figure 3 As shown, the damping plate 125 includes multiple first damping plates 1251 and multiple second damping plates 1252. The first damping plates 1251 and second damping plates 1252 are arranged circumferentially, and the multiple first damping plates 1251 and multiple second damping plates 1252 are staggered in the axial direction. There is an axial gap between the first damping plates 1251 and the second damping plates 1252. The damping fluid fills the entire damping cavity 124 through the radial gap and the axial gap. By setting multiple first damping plates 1251 and multiple second damping plates 1252, the interaction area between the damping plate 125 and the damping fluid is increased, which significantly increases the viscous resistance generated when the inner damping ring 121 rotates relative to the outer damping ring, thereby increasing the damping force provided by the damping part 120 to the main shaft.

[0040] In some embodiments, the first damping plate 1251 is fixedly installed relative to the inner damping ring 121 and rotates synchronously with the inner damping ring 121; the second damping plate 1252 is fixed relative to the outer damping ring 1211 (see...). Figure 3 When the inner damping ring 121 rotates relative to the outer damping ring 1211, the first damping plate 1251 rotates relative to the second damping plate 1252, thereby increasing the viscous resistance generated when the inner damping ring 121 rotates relative to the outer damping ring.

[0041] Figure 4 This is a schematic diagram of the structure of the first and second damping plates according to some embodiments.

[0042] In some embodiments, such as Figure 4As shown, the first damping sheet 1251 is in a ring sheet structure, which is sleeved on the outer periphery of the damping inner ring 121 and coaxially arranged with the damping inner ring 121. In some embodiments, the first damping sheet 1251 is provided with a first stop opening 12511, which is a radial notch on the first damping sheet 1251 and located on the inner periphery side of the first damping sheet 1251. Correspondingly, the outer periphery of the damping inner ring 121 is provided with a first protrusion, which is radially embedded in the first stop opening 12511 and cooperates with the first stop opening 12511. The cooperation of the first damping sheet 1251 and the first stop opening 12511 limits the movement of the first damping sheet 1251 relative to the damping inner ring 121 in the circumferential direction, so that the first damping sheet 1251 rotates synchronously with the damping inner ring 121.

[0043] In some embodiments, as shown in Figure 4 The second damping sheet 1252 is in a ring sheet structure, which is arranged in the inner periphery of the damping outer ring 1211 and coaxially arranged with the damping outer ring 1211. The second damping sheet 1252 is provided with a second stop opening 12521, which is a radial notch on the second damping sheet 1252 and located on the outer periphery side of the second damping sheet 1252. Correspondingly, the inner periphery of the damping outer ring 1211 is provided with a second protrusion, which is radially embedded in the second stop opening 12521 and cooperates with the second stop opening 12521. The cooperation of the second damping sheet 1252 and the second stop opening 12521 limits the movement of the second damping sheet 1252 relative to the damping outer ring 1211 in the circumferential direction, so that the second damping sheet 1252 rotates synchronously with the damping outer ring 1211.

[0044] In some embodiments, the first damping sheet 1251 is provided with a plurality of first stop openings 12511 in the circumferential direction, and the second damping sheet 1252 is provided with a plurality of second stop openings 12521 in the circumferential direction. Correspondingly, the outer periphery of the damping inner ring 121 is provided with a plurality of first protrusions, and the inner periphery of the damping outer ring 1211 is provided with a plurality of second protrusions.

[0045] In some embodiments, continuing to refer to Figure 2 and Figure 3 The damping part 120 includes an end cover 126, which is located between the damping inner ring 121 and the damping outer ring 1211. The end cover 126 includes a first side wall with a radial dimension, which cooperates with the damping inner ring 121 and the damping housing 122 to define the damping cavity 124. In some embodiments, the end cover 126 is used to abut the damping sheet 125 in the damping cavity 124, and the axial position of the plurality of damping sheets 125 in the damping cavity 124 is defined by the clamping of the end cover 126 and the damping housing 122.

[0046] In some embodiments, the end cover 126 comprises a second side wall having an axial dimension, the second side wall being distal to the first side wall from the damping cavity 124, and a first skeleton seal 127 is arranged between the second side wall and the damping inner ring 121. The first skeleton seal 127 seals the radial gap between the end cover 126 and the damping inner ring 121, preventing the damping liquid filled in the damping cavity 124 from leaking, and avoiding the disappearance of damping force caused by the leakage of the damping liquid.

[0047] In some embodiments, in the axial direction, a radial gap is provided between the damping inner ring 121 and the damping housing 122 distal to the end cover 126, to prevent the damping liquid filled in the damping cavity 124 from leaking, a second skeleton seal 128 is arranged between the damping inner ring 121 and the damping housing 122, and the first skeleton seal 127 and the second skeleton seal 128 are located on both sides of the damping cavity 124 in the axial direction. The first skeleton seal 127 and the second skeleton seal 128 seal the damping cavity 124.

[0048] In some embodiments, in the axial direction, a ball 129 is arranged between the damping cavity 124 and the second skeleton seal 128, and the damping inner ring 121 and the damping housing 122 cooperatively define a ball groove, for example, a semicircular groove is arranged on the interface between the damping inner ring 121 and the damping housing 122, to combine the ball groove. The ball 129 is arranged in the ball groove and can roll in the ball groove, so that the damping inner ring 121 and the damping housing 122 are rolling connected, which can reduce the wear between the damping inner ring 121 and the damping housing 122 when the damping inner ring 121 rotates relative to the damping housing 122, and avoid the sealing failure between the damping inner ring 121 and the damping housing 122 caused by the wear, which causes the radial gap between the damping inner ring 121 and the damping housing 122 to increase.

[0049] In some embodiments, to strengthen the sealing of the rolling connection between the damping inner ring 121 and the damping housing 122, a sealing ring 1210 is arranged in the axial direction between the damping cavity 124 and the ball 129, and the sealing ring 1210 is defined between the damping inner ring 121 and the damping housing 122, so as to seal the damping inner ring 121 and the damping housing 122, and prevent the damping liquid filled in the damping cavity 124 from leaking.

[0050] The split damping bearing 100 and the photovoltaic tracking support provided by the embodiments of the present application. When the photovoltaic tracking support is running in normal working condition, the rotating speed of the main shaft is very low, therefore, the split damping bearing 100 generates a small damping force, and the motor of the photovoltaic tracking support can overcome the damping force to drive the main shaft to rotate at normal speed. When the wind pressure is large, the main shaft is affected by the wind force to generate a large acceleration, at this time, the rotating speed of the first damping sheet 1251 relative to the second damping sheet 1252 is large, therefore, the damping force generated by the damping part 120 is large, which can prevent the main shaft from being affected by the wind force to generate movement, and the purpose of resisting wind pressure and preventing wind disaster is achieved.

[0051] The foregoing has described the basic concepts, and it is obvious that the above detailed disclosure is only used as an example for the person skilled in the art, and does not constitute a limitation on the present application. In addition, unless the claims explicitly state, the order of the processing elements and sequences, the use of numerals and letters, or the use of other names in the present application is not used to limit the order of the processes and methods of the present application. Although some currently considered useful novel embodiments are discussed in the above disclosure through various examples, it should be understood that such details are only for the purpose of illustration, and the additional claims are not limited to the disclosed embodiments, on the contrary, the claims are intended to cover all modifications and equivalent combinations that meet the spirit and scope of the embodiments of the present application.

Claims

1. A split damper bearing, characterized in that, The damping bearing comprises a supporting part and a damping part; The supporting part comprises a bearing inner ring and a bearing outer ring which are sleeved with each other and can rotate relative to each other; The damping part comprises a damping inner ring and a damping outer ring which are sleeved with each other and can rotate relative to each other, and a damping cavity is arranged between the damping inner ring and the damping outer ring, and the damping cavity is used for accommodating damping liquid; The supporting part and the damping part are arranged in the axial direction, and the relative position of the supporting part and the damping part in the circumferential direction is fixed.

2. The split damper bearing of claim 1, wherein, The supporting part comprises a bearing seat, and the bearing outer ring is fixed in the bearing seat; The damping part comprises a damping shell, and the damping outer ring is fixed in the damping shell, and the bearing seat and the damping shell are detachably connected in the axial direction.

3. The split damper bearing of claim 2, wherein, A socket is arranged on the bearing seat in the axial direction, a plug rod is arranged on the damping shell in the axial direction, and the plug rod is inserted into the socket in the axial direction.

4. The split damper bearing of claim 3, wherein, The socket arranged on the bearing seat corresponds to the plug rod arranged on the damping shell one by one, a plurality of sockets are arranged on the bearing seat, and a plurality of plug rods are arranged on the damping shell.

5. The split damper bearing of claim 1, wherein, A damping sheet is arranged in the damping cavity, and a radial gap is arranged between the damping sheet and the damping inner ring or the damping outer ring.

6. The split damper bearing of claim 5, wherein, The damping sheet comprises a plurality of first damping sheets and a plurality of second damping sheets, the plurality of first damping sheets and the plurality of second damping sheets are arranged in the axial direction in a staggered manner, and an axial gap is arranged between the first damping sheet and the second damping sheet.

7. The split damper bearing of claim 6, wherein, A first stop opening is arranged on the first damping sheet, a first groove is arranged on the damping inner ring, the first groove is matched with the first stop opening, so as to limit the movement of the first damping sheet relative to the damping inner ring in the circumferential direction; and / or A second stop opening is arranged on the second damping sheet, and a second groove is arranged on the damping outer ring, the second groove is matched with the second stop opening, so as to limit the movement of the second damping sheet relative to the damping outer ring in the circumferential direction.

8. The split damper bearing of claim 2, wherein, The damping part comprises an end cover, the end cover is located between the damping inner ring and the damping outer ring, the end cover comprises a first side wall with a radial dimension, and the first side wall cooperates with the damping inner ring and the damping shell to define the damping cavity.

9. The split damper bearing of claim 8, wherein, The end cover comprises a second side wall with an axial dimension, the second side wall is away from the damping cavity relative to the first side wall, and a first skeleton seal is arranged between the second side wall and the damping inner ring.

10. The split damper bearing of claim 9, wherein, A second skeleton seal is arranged between the damping shell and the damping inner ring, and the first skeleton seal and the second skeleton seal are located on two sides of the damping cavity in the axial direction.

11. The split damper bearing of claim 10, wherein, In the axial direction, a ball is arranged between the damping cavity and the second skeleton seal, the damping inner ring and the damping shell cooperatively define a ball groove, the ball is arranged in the ball groove and can roll in the ball groove, so that the damping inner ring and the damping shell are connected in a rolling manner.

12. The split damper bearing of claim 11, wherein, In the axial direction, a sealing ring is arranged between the damping cavity and the ball, the sealing ring being defined between the damping inner ring and the damping housing to seal the damping inner ring and the damping housing.

13. A photovoltaic tracking support, characterized in that, The photovoltaic tracking support comprises a column, a main shaft and the split damping bearing as claimed in any one of claims 1-12, the bearing outer ring of the support part and the damping outer ring of the damping part being fixed relative to the column, the bearing inner ring of the support part and the damping inner ring of the damping part being fixed relative to the main shaft, so that the split damping bearing is used to rotatably connect the main shaft and the column.

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