CN213064358U

CN213064358U - Bearing assembly of photovoltaic tracking support and photovoltaic tracking support

Info

Publication number: CN213064358U
Application number: CN202021951836.7U
Authority: CN
Inventors: 汪显文; 杨颖�; 王士涛
Original assignee: Arctech Solar Holding Co Ltd
Current assignee: Arctech Solar Holding Co Ltd
Priority date: 2020-09-09
Filing date: 2020-09-09
Publication date: 2021-04-27
Anticipated expiration: 2030-09-09

Abstract

The utility model belongs to the technical field of photovoltaics, and discloses a bearing assembly of a photovoltaic tracking support and the photovoltaic tracking support, which comprises a bearing support, a lower bearing, an upper bearing and a housing, wherein one surface of the bearing support is provided with a first limiting part; the lower bearing is arranged on the bearing support and is abutted against the first limiting part so as to limit the movement of the lower bearing relative to the bearing support in the axial direction of the main beam; the upper bearing is contacted with the upper part of the main beam; the housing cover is arranged on the upper bearing and connected with the bearing support, the housing is provided with a second limiting part, and the upper bearing is abutted against the second limiting part so as to limit the movement of the upper bearing relative to the housing in the axial direction of the main beam. The lower bearing of the utility model is limited by the first limiting part, and the upper bearing is limited by the second limiting part, so that no relative displacement exists among the upper bearing, the lower bearing and the bearing support, and the safety is improved; the housing and the bearing support are arranged in a split mode and fixed together in a post-fixing mode, repeated disassembly can be achieved, and maintenance and replacement are facilitated.

Description

Bearing assembly of photovoltaic tracking support and photovoltaic tracking support

Technical Field

The utility model relates to a photovoltaic technology field indicates a support is trailed to photovoltaic's bearing assembly and photovoltaic especially.

Background

The photovoltaic tracking support is an important component of photovoltaic equipment and is mainly used for assisting a photovoltaic module to capture incident solar energy to the maximum extent, so that the solar radiation received by the photovoltaic module is increased, and the total power generation is improved.

The photovoltaic tracking support generally comprises a main beam, an upright post and a rotary driver, wherein the main beam is fixed on the upright post through a bearing seat, and the rotary driver is used for driving the main beam to rotate so as to drive a photovoltaic module arranged on the main beam to rotate. At present, the solar photovoltaic tracker is required for field installation, a bearing is inserted into a bearing seat on one side of a bearing, a flange clamp is installed on an insertion end main beam and locked through a bolt, the bearing is limited and fixed, and the bearing is prevented from reversely sliding out from the insertion direction. In the actual construction process, the vertical column and the main beam move relatively due to axial component force generated by the installation deflection angle of the vertical column and axial displacement caused by expansion with heat and contraction with cold, and after the main beam moves, the flange clamp on the main beam and the bearing seat form relative displacement to generate a gap, so that potential safety hazards are formed.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a support is trailed to bearing subassembly and photovoltaic of support is trailed to photovoltaic can realize that bearing and bearing frame do not have relative displacement, reduces the potential safety hazard.

The utility model provides a technical scheme as follows:

in one aspect, a bearing assembly for a photovoltaic tracking rack is provided, which is secured to a column for clamping a main beam, comprising:

one surface of the bearing support is fixed on the upright post, and the other surface of the bearing support is provided with a first limiting part;

the lower bearing is arranged on one surface, provided with the first limiting part, of the bearing support and is abutted against the first limiting part so as to limit the movement of the lower bearing relative to the bearing support in the axial direction of the main beam, and the lower bearing is used for contacting with the lower part of the main beam;

the upper bearing is used opposite to the lower bearing, forms a space for accommodating the main beam together with the lower bearing and is used for contacting with the upper part of the main beam;

the housing, the cover is established on the upper bearing, and with bearing holder connects, the housing is close to the one side of upper bearing is provided with the spacing portion of second, bearing holder part cooperation is in the spacing portion of second, the upper bearing with the spacing portion butt of second, with the axial direction restriction of girder the upper bearing is relative the removal of housing.

Further preferably, the bearing support comprises a first circular arc part and two first horizontal parts, the first circular arc part is arranged between the two first horizontal parts, the lower bearing and the first limiting part are arranged in the first circular arc part, and the bearing support is fixedly connected with the housing through the two first horizontal parts.

Further preferably, the bearing support further includes two first vertical portions, one of the first horizontal portions is connected to one end of the first circular arc portion through one of the first vertical portions, and the other of the first horizontal portions is connected to the other end of the first circular arc portion through the other of the first vertical portions.

Further preferably, the housing comprises a second circular arc part and two second horizontal parts, the second circular arc part is arranged between the two second horizontal parts, the upper bearing and the second limiting part are arranged in the second circular arc part, and the housing is fixedly connected with the two first horizontal parts of the bearing support through the two second horizontal parts.

Preferably, the bearing support further comprises a fastener, through holes are respectively formed in the first horizontal part and the second horizontal part, and the fastener passes through the through holes in the first horizontal part and the second horizontal part and is fixed on a stand column so as to fix the bearing support and the housing together on the stand column.

Further preferably, the housing further includes two second vertical portions, one of the second horizontal portions is connected to one end of the second circular arc portion through one of the second vertical portions, and the other of the second horizontal portions is connected to the other end of the second circular arc portion through the other of the second vertical portions.

Further preferably, the number of the first limiting parts is two, the two first limiting parts are arranged on the bearing support at intervals along the axial direction of the main beam, and the lower bearing is abutted between the two first limiting parts.

Further preferably, the number of the second limiting parts is two, the two second limiting parts are arranged on the housing along the axial direction of the main beam at intervals, and the upper bearing is abutted between the two second limiting parts.

Further preferably, the first limiting portion and the second limiting portion are arranged in a circular arc shape along the radial direction of the main beam.

On the other hand, still provide a photovoltaic tracking support, including stand, girder and foretell photovoltaic tracking support's bearing assembly, the bearing support sets up on the stand, the girder wear to establish between upper bearing and the lower bearing.

The technical effects of the utility model reside in that: the lower bearing is limited by the first limiting part, and the upper bearing is limited by the second limiting part, so that relative displacement among the upper bearing, the lower bearing and the bearing support is avoided, and the safety is improved; in addition, the housing and the bearing support are arranged in a split mode, the bearing assembly is fixed together in a post-fixing mode, repeated disassembly can be achieved, partial structure disassembly and replacement become possible in the later maintenance and use process, and the replacement of old models or partial damaged bearings and main beams is achieved on the basis that the installed whole machine is not disassembled.

Drawings

The invention will be described in further detail with reference to the following drawings and embodiments:

fig. 1 is a schematic structural diagram of a photovoltaic tracking support according to the present invention after a main beam is installed on a bearing assembly;

fig. 2 is a cross-sectional view of a photovoltaic tracking support according to the present invention after a main beam is installed on a bearing assembly;

fig. 3 is a schematic structural diagram of a photovoltaic tracking support according to the present invention when the bearing assembly is not installed on the housing;

fig. 4 is a schematic view illustrating an assembly structure of a bearing support and a lower bearing of a bearing assembly of a photovoltaic tracking bracket according to the present invention;

fig. 5 is a schematic structural diagram of a bearing support of a bearing assembly of a photovoltaic tracking support according to the present invention;

fig. 6 is a schematic view of an assembly structure of a housing and an upper bearing of a bearing assembly of a photovoltaic tracking support according to the present invention;

fig. 7 is a schematic structural diagram of a housing of a bearing assembly of a photovoltaic tracking support according to the present invention.

The reference numbers illustrate:

1. a bearing support; 101. a first arc portion; 102. a first horizontal portion; 103. a first vertical portion; 11. a first limiting part; 2. a lower bearing; 3. an upper bearing; 4. a housing; 401. a second arc portion; 402. a second horizontal portion; 403. a second vertical portion; 41. a second limiting part; 5. a main beam; 6. and a through hole.

Detailed Description

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

For the sake of simplicity, only the parts relevant to the present invention are schematically shown in the drawings, and they do not represent the actual structure as a product. In addition, in order to make the drawings concise and understandable, components having the same structure or function in some of the drawings are only schematically illustrated or only labeled. In this document, "one" means not only "only one" but also a case of "more than one".

It should be further understood that the term "and/or" as used in this specification and the appended claims refers to and includes any and all possible combinations of one or more of the associated listed items.

In this context, it is to be understood that, unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In addition, in the description of the present application, the terms "first", "second", and the like are used only for distinguishing the description, and are not intended to indicate or imply relative importance.

The utility model provides a concrete embodiment of a bearing assembly of a photovoltaic tracking support, as shown in figures 1 to 3, which is fixed on a column for clamping a main beam 5, and comprises a bearing support 1, a lower bearing 2, an upper bearing 3 and a housing 4, wherein one side of the bearing support 1 is fixed on the column, and the other side is provided with a first limit part 11; the lower bearing 2 is arranged on one surface, provided with the first limiting part 11, of the bearing support 1 and is abutted against the first limiting part 11 so as to limit the movement of the lower bearing 2 relative to the bearing support 1 in the axial direction of the main beam 5, and the lower bearing 2 is used for contacting with the lower part of the main beam 5; the upper bearing 3 is used opposite to the lower bearing 2 and forms a space for accommodating the main beam 5 together with the lower bearing 2, and is used for contacting with the upper part of the main beam 5; the housing 4 covers the upper bearing 3, and is detachably and fixedly connected with the bearing support 1, one surface of the housing 4, which is close to the upper bearing 3, is provided with a second limiting part 41, the bearing support 1 is partially matched in the second limiting part 41, and the upper bearing 3 is abutted against the second limiting part 41 so as to limit the movement of the upper bearing 3 relative to the housing 4 in the axial direction of the main beam 5.

Specifically, bearing support 1 mountable is on the stand of photovoltaic tracking support, and the one side that bearing support 1 kept away from the stand is equipped with first spacing portion 11, and lower bearing 2 sets up the one side that is equipped with first spacing portion 11 at bearing support 1, and carries on spacingly to lower bearing 2 through first spacing portion 11 to the removal of bearing 2 relative bearing support 1 under the axial direction restriction of girder 5, and the axial direction of girder 5 is the extending direction of girder 5, also is the length direction of girder 5.

After the lower bearing 2 is mounted on the bearing support 1, the main beam 5 can be placed on the lower bearing 2, so that the lower part of the main beam 5 is in contact with the lower bearing 2. The upper bearing 3 is then mounted above the main beam 5 so that the upper part of the main beam 5 is in contact with the upper bearing 3, the upper bearing 3 being used in pair with and facing the lower bearing 2. Finally, the housing 4 is covered on the upper bearing 3, and the housing 4 and the bearing support 1 are fixed, so that the bearing support 1, the lower bearing 2, the upper bearing 3 and the housing 4 are all fixed together; in addition, one surface of the housing 4 close to the upper bearing 3 is further provided with a second limiting portion 41, and the upper bearing 3 is limited by the second limiting portion 41 so as to limit the movement of the upper bearing 3 relative to the housing 4 in the axial direction of the main beam 5. The bearing support 1 is partially fitted in the second limiting part 41, and the bearing support 1 can be limited by the second limiting part 41 so as to prevent relative displacement between the housing 4 and the bearing support 1.

In the embodiment, the bearing support 1 can be formed by stamping a metal plate at one time, and after post-heat treatment, the surface is attractive without obvious cutting surfaces. The shell 4 is formed by stamping metal plates once, and after post-heat treatment, the surface is attractive without obvious cutting surfaces. The upper bearing 3 and the lower bearing 2 are embedded between the bearing support 1 and the housing 4, so that the effective friction contact area of the bearings reaches 100 percent of contact, the bearing material is utilized to the maximum, the weight is reduced by more than 30 percent compared with the existing exposed double-shoulder bearing, and the problem of ultraviolet aging is avoided.

In the bearing assembly of the photovoltaic tracking support, the lower bearing 2 is limited by the first limiting part 11, and the upper bearing 3 is limited by the second limiting part 41, so that relative displacement does not exist among the upper bearing 3, the lower bearing 2 and the bearing support 1, and the safety is improved; the bearing assembly has strong universality and can be applied to main beams 5 with different types of section structures; in addition, the housing 4 and the bearing support 1 are arranged in a split mode, the bearing assembly is fixed together in a post-fixing mode, repeated disassembly can be achieved, partial structure disassembly and replacement become possible in the later maintenance and use process, and the replacement of old models or partial damaged bearings and the main beam 5 is achieved on the basis that the installed whole machine is not disassembled.

In one embodiment, as shown in fig. 4 and 5, the number of the first limiting portions 11 is two, two first limiting portions 11 are arranged on the bearing support 1 at intervals along the axial direction of the main beam 5, and the lower bearing 2 abuts between the two first limiting portions 11.

As shown in fig. 6 and 7, the number of the second limiting portions 41 is two, two second limiting portions 41 are arranged on the housing 4 at intervals along the axial direction of the main beam 5, and the upper bearing 3 is abutted between the two second limiting portions 41. By mounting the lower bearing 2 between the two first stopper portions 11, the movement of the lower bearing 2 relative to the bearing holder 1 can be restricted in the axial direction of the main beam 5. By mounting the upper bearing 3 between the two second stopper portions 41, the movement of the upper bearing 3 relative to the housing 4 can be restricted in the axial direction of the main beam 5. The upper bearing 3 and the lower bearing 2 can be spliced to form a bearing ring, the main beam 5 is arranged in the bearing ring, and the main beam 5 rotates through the bearing ring; and the bearing ring has no relative displacement relative to the bearing support 1, thereby improving the safety.

In one embodiment, as shown in fig. 5, the bearing support 1 includes a first circular arc portion 101 and two first horizontal portions 102, the first circular arc portion 101 is disposed between the two first horizontal portions 102, the lower bearing 2 and the first limiting portion 11 are both disposed in the first circular arc portion 101, and the bearing support 1 is fixedly connected to the housing 4 through the two first horizontal portions 102. The lower bearing 2 is arc-shaped, and the lower bearing 2 is arranged in the first arc-shaped part 101, so that the contact part of the lower bearing 2 and the bearing support 1 can be completely attached to support the lower bearing 2. First spacing portion 11 is arc setting along the radial of girder 5, can increase the area of contact of first spacing portion 11 and lower bearing 2 to increase the spacing power of first spacing portion 11 to lower bearing 2, when the quantity of first spacing portion 11 is two, then two first spacing portions 11 are arc. Two first horizontal portions 102 are arranged outside the first arc portion 101, so that the bearing support 1 and the housing 4 can be conveniently and fixedly connected, and the installation operation is simpler and easier.

As shown in fig. 5, the bearing bracket 1 further includes two first vertical portions 103, one first horizontal portion 102 is connected to one end of the first circular-arc portion 101 through one first vertical portion 103, and the other first horizontal portion 102 is connected to the other end of the first circular-arc portion 101 through the other first vertical portion 103. First vertical portion 103 passes through fillet transition with first circular arc portion 101, and first vertical portion 103 passes through fillet transition with first horizontal part 102 to avoid junction stress concentration, improve bearing support 1's life.

As shown in fig. 7, the housing 4 includes a second circular arc portion 401 and two second horizontal portions 402, the second circular arc portion 401 is disposed between the two second horizontal portions 402, the upper bearing 3 and the second limiting portion 41 are both disposed in the second circular arc portion 401, and the housing 4 is fixedly connected to the two first horizontal portions 102 of the bearing support 1 through the two second horizontal portions 402. The upper bearing 3 is arc-shaped, and the upper bearing 3 is arranged in the second arc part 401, so that the contact part of the upper bearing 3 and the housing 4 can be completely attached to fix the upper bearing 3.

The second limiting portions 41 are arranged in an arc shape along the radial direction of the main beam 5, so that the contact area between the second limiting portions 41 and the upper bearing 3 can be increased, the abutting force of the second limiting portions 41 corresponding to the upper bearing 3 is increased, and when the number of the second limiting portions 41 is two, both the second limiting portions 41 are in the arc shape. Two second horizontal portions 402 are arranged outside the second arc portion 401, so that the bearing support 1 and the housing 4 can be conveniently and fixedly connected, and the installation and operation are simpler and easier. The housing 4 further includes two second vertical portions 403, one second horizontal portion 402 is connected to one end of the second circular arc portion 401 through one second vertical portion 403, and the other second horizontal portion 402 is connected to the other end of the second circular arc portion 401 through the other second vertical portion 403. The second vertical part 403 and the second circular arc part 401 are in circular-bead transition, and the second vertical part 403 and the second horizontal part 402 are in circular-bead transition, so that stress concentration at the joint is avoided, and the service life of the housing 4 is prolonged. The bearing support 1 and the housing 4 in special shapes are combined to achieve the function that the bearing can be embedded in the whole machine.

As shown in fig. 5 and 7, the bearing assembly further includes a fastener, the first horizontal portion 102 and the second horizontal portion 402 are respectively provided with a through hole 6, and the fastener is fixed on the pillar through the through holes 6 of the first horizontal portion 102 and the second horizontal portion 402 to fix the bearing support 1 and the housing 4 together on the pillar. The fastener is a bolt, the bearing support 1 is connected with the housing 4 through the bolt, and the bolt is exposed without shielding, so that the installation is simpler and more convenient; because of being provided with bearing support 1, can fix a position bearing support 1 on the stand of photovoltaic tracking support earlier, then install bearing 2, girder 5 and upper bearing 3 down, treat after all parts installation again with housing 4 cover establish on upper bearing 3 to it is fixed with bearing support 1, set up through this structure, can make in later maintenance and the use local structure dismantle and replace and become possible.

The utility model provides a concrete embodiment of support is trailed to photovoltaic, as shown in fig. 1 to 7, the bearing assembly of support is trailed to photovoltaic in stand, girder 5 and the above-mentioned embodiment, and bearing support 1 sets up on the stand, and girder 5 wears to establish between upper bearing 3 and lower bearing 2. During construction, the bearing support 1 is firstly installed at the end part of the upright column, the lower bearing 2 is placed on the bearing support 1, the lower bearing 2 is abutted to the first limiting part 11, then the main beam 5 is placed on the lower bearing 2, the upper bearing 3 is placed on the main beam 5, finally the housing 4 is sleeved, the upper bearing 3 is abutted to the second limiting part 41, and the bearing support 1 and the housing 4 are fixed through bolts.

The photovoltaic tracking support is simple in structure, simple to produce and process, low in cost, free of welding requirements in production and reduced in total weight; meanwhile, the mounting universality is strong, and the old type or part of the damaged bearing and the main beam 5 can be replaced on the basis of not disassembling the mounted whole machine; in addition, compare in the supporting staple bolt retaining ring structure of bearing among the prior art, not only the field installation is simple, does not have relative displacement space between upper bearing 3 and lower bearing 2 and the bearing support 1 moreover, improves the security.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.

Claims

1. The utility model provides a photovoltaic tracking support's bearing assembly, its is fixed and is used for the centre gripping girder on the stand, its characterized in that includes:

the housing covers the upper bearing, the housing is close to one side of the upper bearing and is provided with a second limiting part, the bearing support part is matched in the second limiting part, the upper bearing is abutted against the second limiting part, and the main beam limits the axial direction of the main beam so that the upper bearing is opposite to the movement of the housing.

2. The bearing assembly of claim 1, wherein the bearing support comprises a first circular arc portion and two first horizontal portions, the first circular arc portion is disposed between the two first horizontal portions, the lower bearing and the first limiting portion are both disposed in the first circular arc portion, and the bearing support is fixedly connected to the housing through the two first horizontal portions.

3. The bearing assembly of claim 2, wherein the bearing mount further comprises two first vertical portions, one of the first horizontal portions being connected to one end of the first circular arc portion by one of the first vertical portions, and the other of the first horizontal portions being connected to the other end of the first circular arc portion by the other of the first vertical portions.

4. The bearing assembly of claim 2, wherein the housing comprises a second circular arc portion and two second horizontal portions, the second circular arc portion is disposed between the two second horizontal portions, the upper bearing and the second limiting portion are both disposed in the second circular arc portion, and the housing is fixedly connected to the two first horizontal portions of the bearing support through the two second horizontal portions.

5. The bearing assembly of claim 4, further comprising a fastener, wherein the first horizontal portion and the second horizontal portion are respectively provided with a through hole, and the fastener is fixed on the vertical column through the through holes of the first horizontal portion and the second horizontal portion to fix the bearing support and the housing together on the vertical column.

6. The bearing assembly of a photovoltaic tracking rack according to claim 4,

the housing further comprises two second vertical parts, one of the second horizontal parts is connected with one end of the second circular arc part through one of the second vertical parts, and the other of the second horizontal parts is connected with the other end of the second circular arc part through the other of the second vertical parts.

7. The bearing assembly of a photovoltaic tracking support according to any one of claims 1 to 6,

the number of the first limiting portions is two, the first limiting portions are arranged on the bearing support at intervals along the axial direction of the main beam, and the lower bearing is arranged between the first limiting portions in an abutting mode.

8. The bearing assembly of a photovoltaic tracking rack according to claim 7,

the number of the second limiting parts is two, the second limiting parts are arranged on the housing along the axial interval of the main beam, and the upper bearing is abutted between the second limiting parts.

9. The bearing assembly of a photovoltaic tracking rack according to claim 8,

the first limiting portion and the second limiting portion are arranged in a circular arc shape along the radial direction of the main beam.

10. A photovoltaic tracking support, comprising a column, a main beam and a bearing assembly of the photovoltaic tracking support according to any one of claims 1 to 9, wherein the bearing support is disposed on the column, and the main beam is inserted between the upper bearing and the lower bearing.