CN114815910B

CN114815910B - Seesaw type bridge structure and flat single-shaft photovoltaic power generation device adopting same

Info

Publication number: CN114815910B
Application number: CN202210621083.0A
Authority: CN
Inventors: 张杏华; 王傲; 徐天然
Original assignee: Langfang Situo New Energy Technology Co ltd; Langfang Situo Photovoltaic Technology Co ltd
Current assignee: Langfang Situo New Energy Technology Co ltd
Priority date: 2022-06-01
Filing date: 2022-06-01
Publication date: 2025-09-16
Anticipated expiration: 2042-06-01
Also published as: WO2023231056A1; CN114815910A

Abstract

The present invention discloses a seesaw bridge structure and a flat single-axis photovoltaic power generation device employing the same, relating to the field of flat single-axis photovoltaic power plants. This structure adds a first and a second slewing beam to the conventional bridge's sleeve structure. The two slewing beams are fixed to the crossbeams of the two flat single-axis purlins and can independently swivel about their respective rotational centers. This prevents the sleeve structure from disengaging even when the two flat single-axis rotation angles differ significantly, thereby minimizing bridge failures and effectively reducing the maintenance costs of the photovoltaic power plant.

Description

Seesaw type bridge structure and flat single-shaft photovoltaic power generation device adopting same

Technical Field

The invention relates to the field of flat single-shaft photovoltaic power stations, in particular to a rocker type bridge structure and a flat single-shaft photovoltaic power generation device adopting the bridge structure.

Background

Due to the restriction factors such as land and price of photovoltaic modules thereof, photovoltaic power stations are gradually built by flat single-shaft tracking supports. The length that single flat unipolar can be built is approximately 90 meters in general, and the power station is in order to reduce photovoltaic module's cleaning cost, and flat unipolar tracking support all can be linked into 1 to 2 KM's long row through the crane span structure, and a long row can only clean with a cleaning robot like this.

Because the flat single shafts have errors such as control precision, installation precision and the like, and torsion angle errors of the torque tube with the length of 90 meters, the final angle errors of the end parts between the two rows of flat single shafts can reach about 12 degrees at maximum, and in various emergency conditions (such as strong wind conditions), the deviation of the rotation angles of the two groups of flat single shafts is larger, the bridge is disconnected in a conventional bridge structure, the bridge connection needs to be restored again by subsequent manual work, and the huge labor cost is caused.

In view of the above technical problems of flat single-axis photovoltaic power plants, there is a need to develop solutions.

Disclosure of Invention

The object of the present invention is to provide a rocker bridge structure that solves, at least to some extent, the above-mentioned drawbacks of the related art.

In order to achieve the above purpose, the technical scheme adopted by the invention is as follows:

A rocker bridge structure, comprising:

a sleeve structure;

a first swing beam having one end connected to one end of the sleeve structure by a gimbal means, and

One end of the second rotary beam is connected with the other end of the sleeve structure through a universal joint device;

the other end of the first rotary beam and the other end of the second rotary beam are provided with rotary structures.

In some embodiments, the swivel structure includes a shaft or shaft bore.

In some embodiments, the rocker bridge structure further includes a U-shaped groove, a notch is provided at one end of a transverse plate portion of the U-shaped groove, a revolving structure is provided at a riser portion of an end portion where the notch is located, and the U-shaped groove is used as a limiting member for limiting a relative position of a revolving beam and a transverse beam on a purline of a flat single shaft.

In some embodiments, the sleeve structure has a length limiting device, the length limiting device includes a spring and a limiting rope, the spring and the limiting rope are all arranged inside the sleeve structure in a penetrating way, one end of the spring and the limiting rope are fixed with an inner pipe of the sleeve structure, and the other end of the spring and the limiting rope are fixed with an outer pipe of the sleeve structure.

In some embodiments, the swivel beam comprises angle steel, C-steel, U-steel, round pipe, square pipe, or profiled pipe.

A flat single-shaft photovoltaic power generation device, wherein a bridge between two adjacent flat single shafts comprises two seesaw bridge structures as claimed in claim 1, the two seesaw bridge structures are symmetrically arranged about the flat single shafts, and a first rotary beam and a second rotary beam of the seesaw bridge structures are correspondingly arranged on cross beams on purlines of the two flat single shafts and can rotate around a rotation center on the cross beams.

In the flat single-shaft photovoltaic power generation device, preferably, the first rotary beam and the second rotary beam are sleeved with the U-shaped groove corresponding to the respective rotary centers, the U-shaped groove is connected with the rotary center on the beam, and the transverse plate of the U-shaped groove is provided with a notch at the end corresponding to the rotary center, so that the U-shaped groove can rotate around the rotary center along with the rotary beam, and the relative position of the rotary beam and the beam on the purline of the flat single shaft can be limited.

In the flat single-axis photovoltaic power generation device described above, preferably, the rotation center is located above the flat single axis.

In the flat single-shaft photovoltaic power generation device described above, preferably, the revolving beam is angle steel, a cross plate portion of the angle steel is attached to a top portion of the cross beam, and a riser portion of the angle steel is attached to an outer side portion of the cross beam.

In the flat single-shaft photovoltaic power generation device, preferably, the sleeve structure is provided with a length limiting device, the length limiting device comprises a spring and a limiting rope, the spring and the limiting rope are all arranged inside the sleeve structure in a penetrating mode, one end of the spring and the limiting rope are fixed with an inner tube of the sleeve structure, and the other end of the spring and the limiting rope are fixed with an outer tube of the sleeve structure.

Compared with the prior art, the invention has at least the following beneficial effects:

Through setting up two gyration roof beams for the sleeve pipe structure also can not throw off when two flat unipolar rotation angle differences are too big, thereby reduced the crane span structure trouble, can effectively reduce photovoltaic power plant's maintenance cost.

Drawings

FIG. 1 is a schematic view of a rocker bridge structure;

FIG. 2 is an exploded view thereof;

FIG. 3 is a schematic view of a sleeve structure thereof;

FIG. 4 is an exploded view of the sleeve structure;

fig. 5 is an enlarged view of a portion B in fig. 4;

FIG. 6 is a schematic view of a swing beam;

fig. 7 is an enlarged view of a portion a in fig. 6;

FIG. 8 is a schematic view of a U-shaped channel;

FIG. 9 is a schematic diagram of an embodiment of a flat single axis photovoltaic power generation device;

fig. 10 is an enlarged view of a portion C in fig. 9;

FIG. 11 is a schematic view of another embodiment of a flat single axis photovoltaic power generation device;

reference numerals:

100. a seesaw bridge structure;

110. The device comprises a sleeve structure, 111, an outer tube, 112, a universal joint device, 113, a limiting rope, 114, a spring, 115 and an inner tube;

120. a first rotating beam;

130. The second rotary beam, 131, folded plate, 132, angle steel, 133, first transverse plate part, 134, first shaft hole, 135, first vertical plate part;

140. A U-shaped groove; 141, a second vertical plate part, 142, a second transverse plate part, 143, a notch, 144 and a second shaft hole;

201. The photovoltaic module comprises a photovoltaic module body, 202, a cross beam, 203, purlines, 204, a rotating shaft, 205 and a flat single shaft.

Detailed Description

The invention is further described below with reference to the drawings and examples.

First embodiment of the invention

Referring to fig. 1 and 2, the present rocker bridge structure 100 includes a bushing structure 110, a first swing beam 120, and a second swing beam 130. One end of the first swing beam 120 is connected to one end of the sleeve structure 110 through the gimbal device 112, and one end of the second swing beam 130 is connected to the other end of the sleeve structure 110 through the gimbal device 112. With further reference to fig. 6 and 7, a first shaft hole (i.e., a swing structure) 134 is provided at the other end of the two swing beams. The swivel structure of the other end of the swivel beam may also be a shaft.

The present rocker bridge structure further includes a U-shaped channel 140. A specific configuration of the U-shaped channel 140 is shown in fig. 8. As shown in fig. 8, one end of the transverse plate portion (i.e., the second transverse plate portion 142) of the U-shaped groove 140 is provided with a notch 143, and the riser portion (i.e., the second riser portion 141) at the end of the notch 143 is provided with a second shaft hole (i.e., a turning structure) 144. The U-shaped channel 140 serves as a stop in the present rocker bridge construction for limiting the relative position of the pivoting beam to the cross beam on the purlin of the flat single axis, as will be described in detail in the embodiments that follow.

The sleeve structure 110 is used to perform the function of a bridge. Fig. 3 and 4 illustrate the construction of the cannula instrument 110. The sleeve structure 110 comprises an inner tube 115 and an outer tube 111 which are sleeved together, and when the inner tube 115 and the outer tube 111 are relatively displaced along the axial direction, the overall length of the sleeve structure 110 is changed.

In addition, the sleeve structure 110 is further provided with a length limiting device, the length limiting device comprises a spring 114 and a limiting rope 113, the spring 114 and the limiting rope 113 are all arranged inside the sleeve structure in a penetrating mode, one end of the spring 114 and one end of the limiting rope 113 are fixed on a screw rod at the end portion of the outer tube 111, and the other end of the spring 114 and the limiting rope 113 are fixed on a screw rod at the end portion of the inner tube 115. When the inner tube 115 is pulled up to a limit position relative to the outer tube 111, the limit rope 113 pulls the inner tube and the outer tube to prevent further pulling up, thereby better avoiding the inner tube from being pulled out of the outer tube.

One configuration of the gimbal assembly 112 is shown in FIG. 5. The present universal joint device 112 includes a first screw 1121 and a second screw 1122, the second screw 1122 having a hole at one end thereof, the first screw 1121 being combined with the second screw 1122 through the hole, the second screw 1122 being rotatable about the first screw 1121.

A construction of a swing beam is shown in fig. 6 and 7. The swing beam includes an angle 132, the angle 132 having a first cross plate portion 133 and a first riser portion 135, one end of the angle 132 being formed with a folded plate 131 for connecting the gimbal device 112, the other end of the angle 132 being provided with a first shaft hole (i.e., a swing structure) 134 at the first riser portion 135. By adopting angle steel, the rotary beam can be attached to the top of the cross beam on the purline and can also be attached to the outer side part of the cross beam to form a lateral limiting effect. It should be noted that the main body of the rotary beam of the present invention is not limited to be implemented by angle steel, and may be C-shaped steel, U-shaped steel, round pipe, square pipe, special pipe, etc., which is not limited in this invention.

Second embodiment of a flat uniaxial photovoltaic power generation device

Mainly the improvement of the bridge frame of the flat single-shaft photovoltaic power generation device. The bridge is a device arranged between two flat single shafts for a cleaning robot to walk from a photovoltaic module on one flat single shaft to a photovoltaic module on the other flat single shaft.

Fig. 9 and 10 show the configuration of the bridge of the present flat single-axis photovoltaic power generation device.

Referring to fig. 9, two photovoltaic modules 201 are respectively disposed on two flat single shafts 205, and can be driven to rotate by the flat single shafts 205 to track sunlight.

Purline 203 is fixed on flat single shaft 205, purline 203 is big to perpendicular with flat single shaft 205, is fixed with crossbeam 202 on the purline 203, and crossbeam 202 is used for installing the crane span structure, and crossbeam 202 prefers square tubular beam.

Wherein the bridge comprises two of the rocker bridge structures 100 of the first embodiment, the two rocker bridge structures 100 being symmetrically arranged with respect to the flat single axis 205.

Taking the rear right rocker bridge structure 100 of fig. 9 as an example, the first swing beam 120 of the rocker bridge structure 100 is disposed on the upper left flat single axle 205, specifically on the beam 202 on the purlin 203 of the flat single axle 205. With further reference to fig. 9 and 10, a rotating shaft (i.e., a center of rotation) 204 is disposed on the cross member 202 at a position above the flat single shaft 205, and the first shaft hole 134 (see fig. 6 and 7) at the end of the first swing beam 120 is engaged with the rotating shaft 204, so that the first swing beam 120 can swing around the rotating shaft 204.

The second revolving beam 130 of the rocker bridge structure 100 is disposed on the lower right flat single axle 205, specifically on the cross beam 202 on the purline 203 of the flat single axle 205. The specific arrangement is the same as the first swing beam 120.

The rocker structure 100 on the left front side in fig. 9 is disposed on two flat single shafts 205 in the same manner.

As shown in fig. 9, when the beam 202 on the flat single axis 205 on the lower right side is tilted upward, the second swing beam 130 of the rocker bridge structure 100 on the rear right side is tilted upward in conformity with the tilted up beam 202, the first swing beam 120 of the rocker bridge structure 100 is also tilted upward, when the tilted up beam 202 starts to descend, the first swing beam 120 and the second swing beam 130 of the rocker bridge structure 100 are both tilted downward until the beams 202 on the two flat single axes 205 are parallel, and both rocker bridge structures 100 are in conformity with the beams 202 on the flat single axes. When the cross beam 202 on one flat single axis 205 descends, one rotating beam of the rocker bridge structure 100 will follow the stationary flat single axis, and the other rotating beam will follow the descent until it is pulled up to a limit in the bushing structure 110 (see fig. 1).

It can be seen that, in the above embodiment, by adding two revolving beams on the basis of the conventional sleeve structure 110, the two revolving beams form a revolving center on the square tube on the flat single-axis purline, so that the revolving beams can revolve around the revolving center, and the sleeve structure 110 is driven to follow the revolution, so that when the two flat single-axis 205 are at any angle, the sleeve structure 110 will not be separated.

With further reference to fig. 9 and 10, the first revolving beam 120 is sleeved with a U-shaped groove 140 corresponding to the revolving center thereof, the U-shaped groove 140 is connected with a rotating shaft (i.e. the revolving center) 204 on the beam 202, and a notch 143 is arranged at a position corresponding to the revolving center of the transverse plate portion of the U-shaped groove 140, so that the U-shaped groove 140 can revolve around the revolving center along with the first revolving beam 120. In the rotation of the first rotation beam 120, when the bottom of the notch 143 hits the cross beam 202, the first rotation beam 120 cannot rotate any more, and the purpose of limiting the relative position of the first rotation beam 120 and the cross beam 202 on the purline is achieved.

Similarly, the second swing beam 130 is also provided with a U-shaped groove 140.

When the first rotary beam 120 and the second rotary beam 130 are angle steels (as shown in fig. 6 and 7), the transverse plate portion (i.e. the first transverse plate portion 133) of the angle steels is attached to the top of the transverse beam 202, and the riser portion (i.e. the first riser portion 134) of the angle steels is attached to the outer side portion of the transverse beam 202, so that lateral limit can be formed, and a more stable effect can be achieved.

The sleeve structure 110 also has a length limiting device which also prevents the inner and outer tubes of the sleeve structure 110 from being disconnected. Referring to fig. 4, the length limiting device includes a spring 114 and a limiting rope 113, wherein the spring 114 and the limiting rope 113 are both arranged inside the sleeve structure in a penetrating manner, one end of the limiting rope 113 is fixed on a screw rod at the end of the outer tube 111, the other end of the limiting rope 113 is fixed on a screw rod at the end of the inner tube 115, and the limiting rope 113 is preferably a steel wire rope.

Third embodiment another Flat uniaxial photovoltaic Power Generation device

Fig. 11 shows another flat single-axis photovoltaic power generation device. The difference from the flat single-axis photovoltaic power generation apparatus shown in fig. 9 is that the height of the photovoltaic module in the flat single-axis 205 in fig. 9 is smaller and is one photovoltaic panel, whereas the photovoltaic module 201 on the flat single-axis 205 in the embodiment shown in fig. 11 is larger and is composed of a plurality of photovoltaic panels.

It should be noted that, unless otherwise specified, the terms "first," "second," and the like as used herein for distinguishing between different devices of the same name and not necessarily for describing a sequential or chronological order, a primary or secondary, or a degree of importance, or the like.

The foregoing detailed description of the invention has been provided by way of example only to assist those skilled in the art in understanding the invention and is not to be construed as limiting the scope of the invention. Various modifications, equivalent changes, etc. which are made by those skilled in the art to the above-described embodiments under the inventive concept should be included in the scope of the present invention.

Claims

1. A seesaw bridge structure, applied to a flat single-axis photovoltaic power generation device, characterized by comprising:

Casing structure;

a first rotating beam, which is arranged on the first horizontal beam on the first flat single axis, one end of the first rotating beam is connected to one end of the sleeve structure through a universal joint device, and the other end of the first rotating beam is provided with a rotating structure that rotates with the rotation center on the first horizontal beam; and

A second rotating beam is provided on the second horizontal beam on the second flat single axis, one end of the second rotating beam is connected to the other end of the sleeve structure through a universal joint device, and the other end of the second rotating beam is provided with a rotating structure to rotate with the rotation center on the second horizontal beam;

The first and second rotating beams are provided with U-shaped grooves at their respective rotation centers, the U-shaped grooves being connected to the rotation centers on the cross beams where they are located, and the cross plates of the U-shaped grooves are provided with notches at the ends corresponding to the rotation centers, so that the U-shaped grooves can rotate around the rotation centers along with the rotating beams and can limit the relative positions of the rotating beams and the cross beams where they are located;

When the first beam and the second beam are parallel, the first rotating beam is in contact with the first beam, and the second rotating beam is in contact with the second beam;

When the second crossbeam rises, the second rotating beam rises in accordance with the second crossbeam, and the first rotating beam rises accordingly. After the second crossbeam begins to descend after rising, both the first rotating beam and the second rotating beam descend accordingly until the second crossbeam and the first crossbeam are parallel to each other.

In the parallel state, when one of the first beam and the second beam descends while the other beam does not move, the slewing beam on the stationary beam remains stationary, and the slewing beam on the descending beam will follow and descend until the limit in the sleeve structure is pulled up to the limit.

2 . The seesaw bridge structure according to claim 1 , wherein the rotary structure comprises an axis or an axis hole.

3. The seesaw bridge structure according to claim 1 is characterized in that the sleeve structure has a length limiting device, and the length limiting device includes a spring and a limiting rope. The spring and the limiting rope are both passed through the interior of the sleeve structure, one end is fixed to the inner tube of the sleeve structure, and the other end is fixed to the outer tube of the sleeve structure.

4. The seesaw bridge structure according to claim 1, wherein the rotary beam comprises angle steel, C-shaped steel, U-shaped steel, round tube, square tube or special-shaped tube.

5. A flat single-axis photovoltaic power generation device, characterized in that the bridge between two adjacent flat single-axis comprises two seesaw bridge structures according to claim 1, and the two seesaw bridge structures are symmetrically arranged about the flat single axis.

6 . The flat single-axis photovoltaic power generation device according to claim 5 , wherein the rotation center is located above the flat single axis.

7. The flat single-axis photovoltaic power generation device according to claim 5, characterized in that the rotating beam is an angle steel, the horizontal plate portion of the angle steel is in contact with the top of the beam, and the vertical plate portion of the angle steel is in contact with the outer side of the beam.

8. The flat single-axis photovoltaic power generation device according to claim 5 is characterized in that the sleeve structure has a length limiting device, and the length limiting device includes a spring and a limiting rope. The spring and the limiting rope are both passed through the interior of the sleeve structure, one end is fixed to the inner tube of the sleeve structure, and the other end is fixed to the outer tube of the sleeve structure.