CN210106430U

CN210106430U - Bearing structure of photovoltaic tracker

Info

Publication number: CN210106430U
Application number: CN201920856951.7U
Authority: CN
Inventors: 陈创修
Original assignee: Zhejiang Astronergy New Energy Development Co Ltd
Current assignee: Zhejiang Astronergy New Energy Development Co Ltd
Priority date: 2019-06-06
Filing date: 2019-06-06
Publication date: 2020-02-21
Anticipated expiration: 2029-06-06

Abstract

The utility model provides a photovoltaic tracker bearing structure, including stand, main shaft, two bearing frames and a plurality of axostylus axostyle, wherein: the top of the upright post is provided with an annular base, and the main shaft penetrates through the annular base with a fit gap and can rotate and move in the annular base; the two bearing seats are oppositely arranged on two sides of the annular base and fixedly sleeved on the main shaft, and protruding baffle plates are arranged at the joint ends of the two bearing seats and the annular base; a plurality of axostylus axostyles are on a parallel with setting up between two baffles of main shaft, and each axostylus axostyle has the outside of overlapping to annular base of fit clearance, arranges along the circle that uses main shaft rotation center as the centre of a circle. The structure creatively provides a shaft lever side position mounting structure, so that the bearing is limited, the safety of a system is effectively improved, and the gap between the main shaft and the annular base of the upright post is sufficient, so that the basic adaptability is high; replace traditional big bearing bush into little axostylus axostyle, still effectively promoted life when reduction in production cost.

Description

Bearing structure of photovoltaic tracker

Technical Field

The utility model relates to a photovoltaic tracker field especially relates to a photovoltaic tracker bearing structure.

Background

With the development of clean energy, photovoltaic modules are applied more and more, and as core components for converting solar energy into electric energy, the installation and placement of the photovoltaic modules are very important. Because the generating efficiency of photovoltaic power generation is greatly influenced by the sunlight irradiation angle, the photovoltaic conversion efficiency can be effectively improved by utilizing the photovoltaic tracking device to move the photovoltaic module along with the sunlight irradiation angle.

The photovoltaic tracking device generally arranges a photovoltaic module on a main shaft connected with a driving mechanism to form a rotor so as to track the incident angle of sunlight rays. The main shaft still needs the stand that the top has the bearing to play the effect of bearing and support, and the bearing of current photovoltaic tracker stand sets up the slip axle bush between bearing frame and main shaft usually, and the bearing carries out sliding friction when the main shaft rotates. However, the existing tracker bearings are worn out greatly in use, have short service life and have poor adaptability to construction deviation of a column foundation.

SUMMERY OF THE UTILITY MODEL

The utility model provides a strong and from taking spacing photovoltaic tracker bearing structure of basic deviation adaptability to stand, photovoltaic tracker bearing structure includes stand, main shaft, two bearing frames and a plurality of axostylus axostyle, wherein:

the top of the upright post is provided with an annular base, and the spindle penetrates through the annular base and can rotate and move in the annular base with a fit clearance;

the two bearing seats are oppositely arranged on two sides of the annular base and fixedly sleeved on the main shaft, and protruding baffle plates are arranged at the joint ends of the two bearing seats and the annular base;

the shaft levers are parallel to the main shaft and arranged between the two baffles, and each shaft lever is provided with a fit clearance and arranged outside the annular base along a circle with the rotation center of the main shaft as the center of the circle.

In a specific implementation, the photovoltaic tracker bearing structure further includes a shaft sleeve sleeved outside the shaft rod, and a fit clearance is provided between the shaft sleeve and the shaft rod and between the shaft sleeve and the annular base, and the shaft sleeve can slide friction relative to the shaft rod and roll friction relative to the annular base.

In specific implementation, the shaft sleeve is an engineering plastic shaft sleeve.

In specific implementation, the bearing seat comprises an upper bearing seat arranged at the top of the main shaft and a lower bearing seat arranged at the bottom of the main shaft, and the baffle is arranged on the upper bearing seat.

In a specific implementation, the photovoltaic tracker bearing structure includes three shaft rods, and the three shaft rods are arranged at equal intervals.

In specific implementation, the upper bearing seat and the lower bearing seat are fixedly clamped on the main shaft through bolts.

In specific implementation, the two ends of the shaft rod are provided with threads and are fixedly connected with the two baffle plates through nuts.

In a specific implementation, the baffles are parallel to the cross section of the main shaft.

In a specific implementation, the annular base is welded to the top of the upright column.

In specific implementation, the upright is an H-shaped steel upright.

In specific implementation, the cross section of the main shaft is square, and the inner wall of the bearing seat is attached to the main shaft and matched with the main shaft in shape.

The utility model provides a bearing structure of a photovoltaic tracker, a main shaft is provided with a fit clearance which is arranged in an annular base at the top of a stand column in a traversing way and can rotate in the annular base, two bearing blocks are oppositely arranged on two sides of the annular base and are embraced with the main shaft, and one end of each bearing block, which is close to the annular base, is provided with a raised baffle; a plurality of axostylus axostyles of parallel arrangement have the match clearance overlap to annular base outside, arrange on the circle that uses main shaft rotation center as the centre of a circle. The bearing structure of the photovoltaic tracker creatively provides a shaft lever side position mounting structure, so that the bearing is limited, the safety of a system is effectively improved, and the gap between a main shaft and an annular base of an upright post is sufficient, so that the bearing structure has high basic adaptability; replace traditional big bearing bush into little axostylus axostyle, still effectively promoted bearing structure's life when reduction in production cost. Meanwhile, the bearing structure is convenient to install, operate and maintain, has low dependence on other parts in construction, and can greatly shorten the construction period of the photovoltaic power station.

Drawings

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 embodiments or the technical solutions in 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 other drawings can be obtained by those skilled in the art without inventive efforts. In the drawings:

fig. 1 is a schematic diagram of an exploded view of a photovoltaic tracker bearing structure according to an embodiment of the present invention;

fig. 2 is a schematic diagram of an overall structure of a bearing structure of a photovoltaic tracker according to an embodiment of the present invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the embodiments of the present invention will be described in detail with reference to the accompanying drawings. The exemplary embodiments and descriptions of the present invention are provided to explain the present invention, but not to limit the present invention.

As shown in fig. 1 and fig. 2, the utility model provides a strong and from taking spacing photovoltaic tracker bearing structure to the basic deviation adaptability of stand, photovoltaic tracker bearing structure includes stand 100, main shaft 200, two bearing frames 300 and a plurality of axostylus axostyle 400, wherein:

the top of the upright column 100 is provided with an annular base 110, and the spindle 200 traverses the annular base 110 with a fit clearance and can rotate and move in the annular base 110;

the two bearing seats 300 are oppositely arranged on two sides of the annular base 110 and fixedly sleeved on the main shaft 200, and protruding baffle plates 311 are arranged at the joint ends of the two bearing seats and the annular base 110;

the plurality of shaft rods 400 are parallel to the main shaft 200 and disposed between the two baffles 311, and each shaft rod 400 has a fit gap and overlaps the exterior of the annular base 110, and is arranged along a circle with the rotation center of the main shaft 200 as the center of the circle.

In specific implementation, as shown in fig. 2, the location of the two bearing seats 300 can be arranged in various embodiments. For example, two bearing housings 300 may be disposed on both sides of the annular base 110 with a fitting gap. The setting of fit clearance not only can not influence the rotation of main shaft 200, can avoid wearing and tearing moreover, and can have certain error adaptability.

In one embodiment, as shown in fig. 1, in order to ensure the adaptability of the bearing structure to the foundation of the column 100, the inner diameter of the annular base 110 of the column 100 and the rotation radius of the main shaft 200 may also have a fit clearance, so as to improve the field adaptability of the bearing structure.

In one embodiment, a lubrication device may be disposed between shaft 400 and annular base 110. The arrangement of the lubricating device can be provided in various embodiments. For example, as shown in fig. 1, in order to achieve rolling friction between the shaft 400 and the annular base 110, further improve the service life of the shaft 400 and the annular base 110 and the operational stability of the entire bearing structure, the photovoltaic tracker bearing structure may further include a shaft sleeve 410 sleeved outside the shaft 400, and the shaft sleeve 410 has a fit clearance with the shaft 400 and the annular base 110, and can slide and rub against the shaft 400 and the annular base 110. Further, the sleeve 410 may be selected in a variety of embodiments. For example, the shaft sleeve 410 may be an engineering plastic shaft sleeve, because the engineering plastic material can effectively reduce the production cost while reducing wear and ensuring lubrication. In the operation of the bearing structure, when the main shaft 200 drives the bearing seat 300 to rotate and move in the annular base 110, the shaft sleeve 410 can realize rolling friction on the outside of the annular base 110, and can realize sliding friction with the shaft 400.

In particular implementations, the bearing housing 300 can be provided in a variety of embodiments. For example, as shown in fig. 1 and 2, the bearing housing 300 may include an upper bearing housing 310 disposed at the top of the main shaft 200 and a lower bearing housing 320 disposed at the bottom of the main shaft 200; when the bearing seat 300 is installed, the main shaft 200 may be firstly inserted into the annular base 110, and then the two sets of upper and lower bearing

seats

310 and 320 are clasped to both sides of the annular base 110. Further, the position of the baffle 311 can be set in various embodiments, for example, the baffle 311 can be set on the upper bearing seat 310; because baffle 311 is used for fixed axostylus axostyle 400, and axostylus axostyle 400 has spacing effect, if the scope of axostylus axostyle 400 arranging is too big, will influence the rotation angle of main shaft 200, set up axostylus axostyle 400 and then can not influence the rotatory removal of main shaft 200 in bolster bearing housing 310, and main shaft 200 and bearing housing 300 take to with annular base 110's first half through axostylus axostyle 400, do not influence this bearing arrangement's overall stability.

In particular implementations, the number of shafts 400 may be arranged in a variety of embodiments. For example, as shown in fig. 1, the photovoltaic tracker bearing structure may include three of the shafts 400, and the three shafts 400 are arranged at equal intervals. The three shaft rods 400 are arranged on the upper bearing seat 310 at equal intervals, so that the whole main shaft 200 and the bearing seat 300 can be effectively arranged on the annular base 110 of the upright 100, and the rotation of the main shaft 200 cannot be influenced; meanwhile, the arrangement of the three shaft rods 400 can further simplify the structure, so that the production cost can be reduced, and the later maintenance and the maintenance are facilitated.

In a specific implementation, there may be various embodiments for clasping the upper bearing seat 310 and the lower bearing seat 320 to the main shaft 200, for example, in order to ensure that the upper bearing seat 310 and the lower bearing seat 320 are stably connected and prevent a bearing from loosening during operation, the upper bearing seat 310 and the lower bearing seat 320 may be fastened to the main shaft 200 by bolts.

In particular implementations, shaft 400 may be mounted in a variety of embodiments. For example, both ends of the shaft 400 are provided with threads, correspondingly, the two baffles 311 may be provided with connecting holes, and when the shaft 400 is installed, both ends of the shaft 400 may respectively penetrate through the connecting holes of the two baffles 311 and then be fixedly connected with the two baffles 311 through nuts.

In specific implementation, the baffle 311 can be provided in various embodiments, for example, as shown in fig. 1 and fig. 2, in order to ensure the working stability of the structure of the mast 100 and further simplify the structure, the baffle 311 can be provided parallel to the cross section of the main shaft 200, i.e., perpendicular to the body of the bearing seat 300.

In particular implementations, the connection of the annular base 110 to the post 100 can have a variety of embodiments. For example, since the annular base 110 needs to bear the entire weight of the mast 100 and the bearing housing 300, the annular base 110 may be welded to the top of the mast 100 in order to secure the strength thereof. The welded structure can be connected in advance in a factory, and the field installation steps of the bearing structure are further simplified while the connection strength is ensured.

In particular embodiments, the shaft 100 can be selected in a variety of ways. For example, as shown in fig. 1 and 2, the column 100 may be an H-shaped steel column in order to reduce cost while ensuring strength.

In particular embodiments, the shape of the spindle 200 may be configured in a variety of ways. For example, as shown in fig. 1 and 2, in order to ensure that the stress is uniform when the main shaft 200 rotates and to facilitate fixing the photovoltaic module, the cross section of the main shaft 200 may be square; further, in order to ensure that the bearing seat 300 is stably connected with the spindle 200, the inner wall of the bearing seat 300 may be attached to the spindle 200 and matched with the shape of the spindle 200, that is, the cross section of the inside of the bearing seat 300 is also square.

To sum up, in the bearing structure of the photovoltaic tracker provided by the present invention, the main shaft has a fit gap and is transversely disposed in the annular base at the top of the stand column and can rotate in the annular base, the two bearing blocks are oppositely disposed on both sides of the annular base and are embraced to the main shaft, and a protruding baffle is disposed at one end of each bearing block close to the annular base; a plurality of axostylus axostyles of parallel arrangement have the match clearance overlap to annular base outside, arrange on the circle that uses main shaft rotation center as the centre of a circle. The bearing structure of the photovoltaic tracker creatively provides a shaft lever side position mounting structure, so that the bearing is limited, the safety of a system is effectively improved, and the gap between a main shaft and an annular base of an upright post is sufficient, so that the bearing structure has high basic adaptability; replace traditional big bearing bush into little axostylus axostyle, still effectively promoted bearing structure's life when reduction in production cost. Meanwhile, the bearing structure is convenient to install, operate and maintain, has low dependence on other parts in construction, and can greatly shorten the construction period of the photovoltaic power station.

The above-mentioned embodiments, further detailed description of the objects, technical solutions and advantages of the present invention, it should be understood that the above description is only the embodiments of the present invention, and is not intended to limit the scope of the present invention, and any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the scope of the present invention.

Claims

1. A photovoltaic tracker bearing structure, characterized in that it comprises a column (100), a main shaft (200), two bearing housings (300) and a plurality of shafts (400), wherein:

an annular base (110) is arranged at the top of the upright column (100), and the spindle (200) traverses the annular base (110) with a fit clearance and can rotate and move in the annular base (110);

the two bearing seats (300) are oppositely arranged on two sides of the annular base (110) and fixedly sleeved on the main shaft (200), and protruding baffle plates (311) are arranged at the joint ends of the two bearing seats and the annular base (110);

the shaft rods (400) are parallel to the main shaft (200) and arranged between the two baffle plates (311), and the shaft rods (400) are overlapped outside the annular base (110) with fit gaps and are arranged along a circle with the rotation center of the main shaft (200) as the center of circle.

2. The photovoltaic tracker bearing structure of claim 1 further comprising a bushing (410) sleeved outside the shaft (400), wherein the bushing (410) has a fit clearance with the shaft (400) and the annular base (110), and can slide friction relative to the shaft (400) and roll friction relative to the annular base (110).

3. The photovoltaic tracker bearing structure of claim 2 wherein the bushing (410) is an engineering plastic bushing.

4. The photovoltaic tracker bearing structure of claim 1 wherein the bearing mount (300) comprises an upper bearing mount (310) disposed on top of the main shaft (200) and a lower bearing mount (320) disposed on bottom of the main shaft (200), the baffle (311) being disposed on the upper bearing mount (310).

5. The photovoltaic tracker bearing structure of claim 4 wherein the photovoltaic tracker bearing structure comprises three of the shafts (400), the three shafts (400) being equally spaced.

6. The photovoltaic tracker bearing structure of claim 4 wherein the upper bearing mount (310) and the lower bearing mount (320) are bolted to the main shaft (200).

7. The photovoltaic tracker bearing structure of claim 1 wherein the shaft (400) is threaded at both ends and is fixedly connected to the two baffles (311) by nuts.

8. The photovoltaic tracker bearing structure of claim 1 wherein the baffle (311) is parallel to a cross section of the main axis (200).

9. The photovoltaic tracker bearing structure of claim 1 wherein the annular base (110) is welded to a top of the column (100).

10. The photovoltaic tracker bearing structure of claim 1 wherein the columns (100) are H-beam columns.

11. The photovoltaic tracker bearing structure of claim 1 wherein the cross-section of the main shaft (200) is square, and the inner wall of the bearing seat (300) fits against the main shaft (200) matching the shape of the main shaft (200).