CN113437934B

CN113437934B - Linkage tracking photovoltaic power station

Info

Publication number: CN113437934B
Application number: CN202110774782.4A
Authority: CN
Inventors: 殷凤乾; 殷怀军; 汪振斌; 王小安
Original assignee: Jiangsu Yanshan Photovoltaic Equipment Co ltd
Current assignee: Jiangsu Yanshan Photovoltaic Equipment Co ltd
Priority date: 2021-07-09
Filing date: 2021-07-09
Publication date: 2023-06-16
Anticipated expiration: 2041-07-09
Also published as: CN113437934A

Abstract

The invention discloses a linkage tracking photovoltaic power station, which comprises single-axis tracking photovoltaic power generation devices arranged in a plurality of rows and columns, wherein photovoltaic modules in each power generation device are arranged on a rectangular main beam through cross beams, the rectangular main beam is arranged in an inner ring body which is in a circular-notch shape on a main beam bearing, and a bearing fixing cover is arranged on the notch plane of the inner ring body; the inner ring body is rotatably supported on a bearing seat body with a semicircular upper part through rollers, and a bearing seat cover is arranged at the upper end of the bearing seat body; the lower part of the bearing seat body is supported on an adjustable support which is arranged on the upright post in a left-right adjustable way through an adjusting screw rod and an adjusting nut; the liquid level gauge which is communicated with the communicating pipe is arranged on each upright post, and the corresponding liquid level pointer is arranged on the bearing seat body. The invention can ensure that the centralized linkage tracking process of each single-axis tracking photovoltaic power generation device is flexible and portable, and can ensure that the installation and adjustment are convenient and quick and the efficiency is high.

Description

Linkage tracking photovoltaic power station

Technical Field

The invention relates to a photovoltaic power generation station power generation device, in particular to a photovoltaic power generation station power generation device capable of carrying out centralized linkage tracking on a sun position.

Background

In the photovoltaic power station power generation equipment consisting of a plurality of tracking type photovoltaic power generation devices, a component bracket for installing a photovoltaic component in each tracking type photovoltaic power generation device can timely change the installation angle position around a rotating shaft under the drive of a centralized linkage tracking driving device, so that the light receiving surface of the photovoltaic component can be perpendicular to solar rays as much as possible, further more solar radiation is received, and the centralized linkage driving device for driving each tracking type photovoltaic power generation device to perform tracking motion is in transmission connection with each tracking type photovoltaic power generation device through a driving component.

The common tracking type photovoltaic power generation device is a single-axis tracking type photovoltaic power generation device, a photovoltaic module is arranged on a main beam through a plurality of cross beams, the main beam is rotatably supported on an upright post through a rotating shaft, and most of the rotating shaft and the upright post are connected through bearings, so that the main beam is required to be provided with a precisely machined rotating shaft, the manufacturing and the machining are troublesome, the rotating shaft and the bearings are required to be inserted in the length direction during the installation, the installation process is slow, and the efficiency is low; in order to ensure the flexibility of the rotation of the main beam, the rotation shafts between the main beam and the upright posts are all on the same axis, which is ensured by on-site adjustment, the height positions of the upright posts are adjusted to ensure the rotation shafts between the main beam and the upright posts to be at the same horizontal position, and the left and right positions of the rotation shafts between the upright posts are also adjusted to ensure that the axes of the rotation shafts between the main beam and the upright posts are on the same vertical plane, generally, the adjustment of the height positions of the rotation shafts can be adjusted by the height of the upright posts, but the adjustment of the height positions of the upright posts is relatively heavy, but the adjustment of the left and right positions is inconvenient by the adjustment of the position of the upright posts, which also makes the installation and adjustment process very slow and low efficiency.

In the centralized linkage tracking photovoltaic power station equipment consisting of a plurality of tracking photovoltaic power generation devices, not only the flexibility of tracking adjustment of each tracking photovoltaic power generation device is ensured, but also the equal height of the main beams of the linkage tracking driving arms installed in each tracking photovoltaic power generation device is ensured in order to ensure the flexibility of centralized linkage tracking driving of each tracking photovoltaic power generation device, and in the installation and adjustment process, whether the rotating shafts between each main beam and a plurality of upright posts are at the same horizontal position cannot be determined due to the lack of reference objects, the adjustment between a plurality of upright posts and the main beams is performed by experience and hand feeling, the installation difficulty is higher, and the installation efficiency is lower.

Disclosure of Invention

Aiming at the defects existing in the prior art, the technical problem to be solved by the invention is to provide a linkage tracking photovoltaic power station, which not only can ensure that the centralized linkage tracking process of each single-axis tracking photovoltaic power generation device is flexible and portable, but also can ensure that the installation and adjustment are convenient and quick, and the efficiency is high.

In order to solve the technical problems, the invention provides a linkage tracking photovoltaic power station, which comprises photovoltaic power generation units arranged into a plurality of rows and columns, wherein each photovoltaic power generation unit comprises photovoltaic modules, each photovoltaic module is installed on a rectangular main beam through a plurality of cross beams, a tracking driving arm is connected to the rectangular main beam, the tracking driving arm in each photovoltaic power generation unit is in transmission connection with a tracking driving device, at least two main beam bearings are installed on the rectangular main beam, each main beam bearing comprises an inner ring body, the cross section of the inner ring body is in a circular segment shape, main beam clamping grooves are formed in the inner ring body, the length direction of each main beam clamping groove is parallel to the axial direction of the inner ring body, a bearing fixing cover is installed on the notch plane of the circular segment-shaped inner ring body, and the shape of an inner cavity defined by the inner side surface of the bearing fixing cover and the main beam clamping grooves corresponds to the cross section shape of the rectangular main beam; the inner ring body is provided with a plurality of rollers, each roller is uniformly distributed along the circumferential direction of the inner ring body, the inner ring body is rotatably supported on the bearing seat body through the rollers, the upper part of the bearing seat body is semicircular, the upper end of the bearing seat body is provided with a bearing seat cover, and the bearing fixing cover is positioned in the bearing seat cover; an adjusting screw is arranged at the lower part of the bearing seat body, the bearing seat body is supported on an adjustable support through an adjusting nut screwed with the adjusting screw, a nut stop mechanism is arranged between the adjusting nut and the adjustable support, and the adjustable support is installed and fixedly connected on the upright post in a left-right adjustable manner; the liquid level gauge is arranged on the upright posts, the liquid level pointer corresponding to the liquid level gauge is arranged on the bearing seat body, and the liquid level gauge on each upright post is communicated with each other through the communicating pipe; the axis of an inner cavity enclosed by the inner side surface of the bearing fixing cover and the main beam clamping groove is positioned on the axis of the inner ring body; convex edges are respectively arranged on two sides of the outer periphery of the inner ring body, and two ends of the roller are rotatably supported on the two convex edges; the upper part of the bearing seat body which is in a semicircular shape is positioned between the two convex edges, and the width of the upper part of the semicircular shape of the bearing seat body corresponds to the distance between the two convex edges.

In the structure, because install two at least girder bearings on the rectangle girder, this girder bearing includes the inner circle body, the transversal circular defect form of personally submitting of inner circle body is equipped with the girder draw-in groove on the inner circle body, the length direction of this girder draw-in groove and the axial parallel arrangement of inner circle body, the rectangle girder card inserts in this girder draw-in groove, install the bearing fixed cover on the breach plane of circular defect form inner circle body, the medial surface of bearing fixed cover and girder draw-in groove enclose the inner chamber shape that becomes corresponding to the cross-section shape of rectangle girder, then the subassembly support can be directly with rectangle girder and girder bearing installation connection, the pivot that need not finish machining preparation links to each other with girder bearing, the mounting connection structure obtains very big simplification, and the inner circle body of girder bearing is connected with the girder through the girder draw-in groove that establishes, make the installation process between girder bearing and the rectangle girder that usually needs to accomplish along rectangle girder length direction grafting, install the girder and the girder draw-in groove that the rectangle girder bearing radial along girder, the installation very convenient, and girder bearing can install, and the installation accuracy of installing the girder bearing can be installed in the arbitrary axial position of rectangle girder and the girder main girder bearing and the installation of rectangle girder, the required to install the length between the main girder bearing and the regular main part, the required to install the main girder and the fixed structure of the main girder, the installation accuracy is improved.

The inner ring body is rotatably supported on the bearing seat body through the rollers, the upper part of the bearing seat body is semicircular, the bearing seat cover is arranged at the upper end of the bearing seat body, and the bearing fixing cover is positioned in the bearing seat cover; for the support of the component support with the tracking movement range smaller than 180 degrees, the central angles corresponding to the two outermost rollers in the rollers arranged on the circular-segment-shaped inner ring body are larger than 180 degrees, so that the use requirements can be well met; the upper part is the semi-circular bearing frame body and is enough to satisfy the support requirement of the subassembly support that the tracking motion scope is less than 180 on the one hand, on the other hand can be convenient for the installation of bearing, the installation process can be with the inner circle body direct from radial insert can, the bearing frame lid that sets up has guaranteed girder bearing's wholeness and structural stability.

The lower part of the bearing seat body is provided with the adjusting screw, the bearing seat body is supported on the adjustable support through the adjusting nut screwed with the adjusting screw, a nut stop mechanism is arranged between the adjusting nut and the adjustable support, the adjustable support is installed and fixedly connected on the upright post in a left-right adjusting way, the bearing seat body can be lifted or lowered through rotating the adjusting nut, the height position of the bearing seat body can be conveniently adjusted, the bearing seat body installed on each upright post can be in the same height position through the adjustment, the nut stop mechanism arranged between the adjusting nut and the adjustable support is used for locking the nut after the adjustment is finished, the long-term maintenance of the same state of the height position of each main beam bearing is ensured, and compared with the conventional adjusting structure for adjusting the height position of the upright post, the adjusting process is more convenient and easy to operate.

And because the liquid level meters are arranged on the stand columns, the liquid level pointers corresponding to the liquid level meters are arranged on the bearing seat body, the liquid level meters on the stand columns are communicated through the communicating pipes, a reference system is provided for the adjustment of the height positions of the bearing seat bodies on the stand columns by the liquid level meters which are arranged on the stand columns and are communicated through the communicating pipes, the liquid level in the liquid level meters which are communicated with each other is equal in height, the consistency of the distance from the center of the semicircular upper semicircular hole of each bearing seat body to the lower end of the liquid level pointer is ensured only in the manufacturing process of the photovoltaic power generation device, and then the liquid level pointers are directed to the liquid level positions by adjusting the height positions of the bearing seat bodies in the mounting process, so that the equal height of the rotation axis between the main beam and each stand column in each photovoltaic power generation device and the equal height between the main beams in each photovoltaic power generation unit can be conveniently ensured, thereby meeting the requirements of tracking motion of linkage driving, and the installation efficiency of the power station can be greatly improved.

By adopting the embodiment, the axial positioning requirement between the inner ring body and the bearing seat body is met.

In a further preferred embodiment of the present invention, the inner hole at the upper part of the semicircular bearing housing is attached to each roller. By adopting the embodiment, the bearing seat body can be ensured to stably and reliably rotatably support the inner ring body through the roller.

In another further preferred embodiment of the invention, the adjusting screw arranged at the lower part of the bearing seat body is inserted on the adjustable support, and the adjusting nut is placed on the upper side surface of the adjustable support. By adopting the embodiment, the bearing seat body and the adjustable support are convenient to connect.

In a still further preferred embodiment of the present invention, a stand column clamping groove is arranged at the lower part of the adjustable support, the adjustable support is sleeved on the stand column through the stand column clamping groove, and the adjustable support is fixedly connected with the stand column through a bolt and a nut. By adopting the embodiment, the adjustable support is convenient to connect with the upright post, and the connection is stable and reliable.

In a further preferred embodiment of the present invention, the cross section of the upright post is rectangular, and a waist-shaped hole for passing through the adjustable support fixing bolt is arranged on the upright post, and the length-diameter direction of the waist-shaped hole is horizontally arranged. By adopting the embodiment, the upright post with the rectangular section can be stably and reliably clamped and inserted with the upright post clamping groove of the adjustable support, and the left and right positions of the adjustable support can be conveniently adjusted.

In another still further preferred embodiment of the present invention, the nut stop mechanism is a nut presser plate mounted on the post. By adopting the embodiment, the adjusting nut can be tightly pressed on the adjustable support by adopting the nut pressing plate as the nut stop mechanism to be fixedly connected with the adjustable support and the upright post, the structure is simple, and the reliable locking of the adjusting nut can be ensured.

In a still further preferred embodiment of the present invention, a communicating pipe joint is provided at a lower portion of the liquid level gauge, and the liquid level gauge is communicated with the communicating pipe through the communicating pipe joint. By adopting the embodiment, the communicating pipe and the liquid level meter can be conveniently installed and connected, and the communicating pipe can be conveniently retracted after the power station is installed.

Drawings

The linkage tracking photovoltaic power station of the invention is further described in detail below with reference to the accompanying drawings and specific examples.

FIG. 1 is a schematic diagram of one embodiment of a linkage tracking photovoltaic power plant of the present invention;

FIG. 2 is a side view of the structure shown in FIG. 1;

FIG. 3 is an enlarged view of a portion of the main beam bearing portion of the structure of FIG. 1;

fig. 4 is an axial cross-sectional view of fig. 3.

In the figure: the device comprises a 1-photovoltaic power generation unit, a 2-photovoltaic module, a 3-beam, a 4-rectangular main beam, a 5-inner ring body, a 6-main beam bearing, a 7-bearing seat body, an 8-upright post, a 9-tracking driving arm, a 10-tracking driving device, an 11-linkage rod, a 12-communicating pipe, a 13-liquid level meter, a 14-adjustable support, a 15-nut stop mechanism, a 16-adjusting nut, a 17-adjusting screw, a 18-liquid level pointer, a 19-communicating pipe joint, a 20-roller, a 21-main beam clamping groove, a 22-bearing fixing cover, a 23-bearing seat cover, a 24-convex edge, a 25-waist-shaped hole and a 26-upright post clamping groove.

Detailed Description

In the linkage tracking photovoltaic power station shown in fig. 1 and 2, photovoltaic power generation units 1 are arranged into a plurality of rows and columns, each photovoltaic power generation unit 1 comprises a photovoltaic module 2, each photovoltaic module 2 is installed on a rectangular main beam 4 along the length direction of the rectangular main beam 3 through a plurality of cross beams 3, the rectangular main beam 4 is supported on an upright post 8 through a main beam bearing 6, a tracking driving arm 9 is connected to the rectangular main beam 4, the tracking driving arm 9 in each photovoltaic power generation unit 1 is in transmission connection with a tracking driving device 10 through a linkage rod 11, and the tracking driving device 10 drives the rectangular main beam 4 in each photovoltaic power generation unit 1 to swing through the linkage rod 11, so that linkage tracking of the photovoltaic module 2 on each photovoltaic power generation unit 1 in the photovoltaic power station to the sun position is realized.

In each photovoltaic power generation unit 1, the rectangular main beam 4 may be formed by splicing a plurality of rectangular pipes, at least two main beam bearings 6 are mounted on the rectangular main beam 4, the main beam bearings 6 comprise an inner ring body 5, the inner ring body 5 is a circular-segment columnar member with a circular-segment cross section, the circular-segment columnar member is formed by cutting an arcuate body with an arcuate bottom surface on a cylinder, and a plane formed by cutting the arcuate body off the cylinder may be referred to as a notch plane of the circular-segment columnar member, see fig. 3 and 4. The inner ring body 5 is provided with a main beam clamping groove 21, the length direction of the main beam clamping groove 21 is parallel to the axial direction of the inner ring body 5, the rectangular main beam 4 is clamped and inserted into the main beam clamping groove 21, a bearing fixing cover 22 is arranged on the notch plane of the circular-notch-shaped inner ring body 5 through a screw, the shape of an inner cavity surrounded by the inner side surface of the bearing fixing cover 22 and the main beam clamping groove 21 corresponds to the cross section shape of the rectangular main beam 4, and the axis of the inner cavity surrounded by the inner side surface of the bearing fixing cover 22 and the main beam clamping groove 21 is positioned on the axis of the inner ring body 5; the inner ring body 5 is provided with a plurality of rollers 20, each roller 20 is uniformly distributed along the circumferential direction of the inner ring body 5, convex edges 24 are respectively arranged at two sides of the outer circumference of the inner ring body 5 as a preferred embodiment, the convex edges 24 are in a circular ring shape, concave convex edge mounting steps are arranged at two sides of the inner ring body 5, the convex edges 24 are embedded and fixedly connected in the corresponding mounting steps, two ends of each roller 20 are rotatably supported on the corresponding convex edges 24, the outer diameter of the convex edges 24 is larger than the diameter of a circle tangential to the outer circle of each roller 20, the central angle corresponding to the two outermost rollers 20 in the plurality of rollers 20 is larger than 180 degrees, concave parts corresponding to the rollers 20 are arranged on the inner ring body 5 so as to avoid the mounting space of the rollers 20, clamping edges are respectively arranged at two sides of the bearing fixing cover 22 and clamped at the outer sides of the convex edges 24, and the clamping edges at each side are respectively arranged at two sides of the main beam clamping groove 21.

The inner ring body 5 is rotatably supported on the bearing seat body 7 through the rollers 20, the upper part of the bearing seat body 7 is semicircular, the semicircular upper part of the bearing seat body 7 is positioned between the two convex edges 24, the width of the semicircular upper part of the bearing seat body 7 corresponds to the distance between the two convex edges 24, and the semicircular inner hole of the semicircular upper part of the bearing seat body 7 is attached to each roller 20; the bearing seat cover 23 is arranged at the upper end of the bearing seat body 7 through a screw, the lower part of an inner hole of the bearing seat cover 23 is provided with two circular arc hole sections, the radius of each circular arc hole section is the same as that of a semicircular inner hole of the bearing seat body 7, the two circular arc hole sections can be attached to the roller 20, the upper part of the inner hole of the bearing seat cover 23 is provided with a rectangular groove section, and the space of each rectangular groove section corresponds to the periphery of the bearing fixing cover 22, so that the bearing fixing cover 22 is positioned in the bearing seat cover 23; the lower part of the bearing seat body 7 is provided with an adjusting screw 17, the bearing seat body 7 is supported on the adjustable support 14 through an adjusting nut 16 screwed with the adjusting screw 17, a nut stop mechanism 15 is arranged between the adjusting nut 16 and the adjustable support 14, the nut stop mechanism 15 can be simply a nut pressing plate arranged on the upright 8, the adjustable support 14 is arranged and fixedly connected on the upright 8 in a left-right adjustable manner, as a preferred embodiment, the adjusting screw 17 arranged at the lower part of the bearing seat body 7 is spliced on the adjustable support 14, the adjusting nut 16 is placed on the upper side surface of the adjustable support 14, the lower part of the adjustable support 14 is provided with an upright clamping groove 26, the adjustable support 14 is sleeved on the upright 8 through the upright clamping groove 26, the adjustable support 14 is fixedly connected with the upright 8 through a bolt and a nut, the section of the upright 8 is rectangular, two side surfaces of the upright 8 with rectangular section are correspondingly attached to the side surfaces of the upright clamping groove 26, the adjustable support 14 is fixedly connected with the upright 8 through the bolt and is provided with a waist-shaped hole 25 used for penetrating through the fixing bolt of the adjustable support, and the waist-shaped support 25 is horizontally arranged in the length direction to adapt to the right-right direction of the adjustable support 14, so as to meet the requirement of the installation position.

The liquid level gauge 13 is installed on the upright post 8, the liquid level gauge 13 can be simply a transparent pipe, the liquid level pointer 18 corresponding to the liquid level gauge 13 is arranged on the bearing seat body 7, the lower end of the liquid level pointer 18 is close to the liquid level gauge 13, the distance from the lower end of each liquid level pointer 18 to the center of a semicircular hole on the bearing seat body 7 is kept consistent by manufacturing and processing, the liquid level gauge 13 on each upright post 8 is communicated through the communicating pipe 12, as a preferred embodiment, the communicating pipe joint 19 is arranged at the lower part of the liquid level gauge 13, the liquid level gauge 13 is communicated with the communicating pipe 12 through the communicating pipe joint 19, and the communicating pipe 12 is preferably a plastic hose.

The foregoing is merely illustrative of some preferred embodiments of the present invention, but the invention is not limited thereto and many modifications and variations are possible. Any modifications or variations which are based on the basic principles of the present invention should be considered as falling within the scope of the present invention.

Claims

1. The utility model provides a linkage tracking photovoltaic power plant, is including arranging into photovoltaic power generation unit (1) of a plurality of ranks, and each photovoltaic power generation unit (1) includes photovoltaic module (2), and each photovoltaic module (2) are installed on rectangle girder (4) through a plurality of crossbeams (3), are connected with on rectangle girder (4) and track actuating arm (9), and the track actuating arm (9) in each photovoltaic power generation unit (1) are connected with tracking drive device (10) transmission, its characterized in that: at least two main beam bearings (6) are arranged on the rectangular main beam (4), each main beam bearing (6) comprises an inner ring body (5), the cross section of each inner ring body (5) is in a circular-notch shape, main beam clamping grooves (21) are formed in the inner ring body (5), the length direction of each main beam clamping groove (21) is parallel to the axial direction of each inner ring body (5), each rectangular main beam (4) is clamped and inserted into each main beam clamping groove (21), a bearing fixing cover (22) is arranged on the notch plane of each circular-notch-shaped inner ring body (5), and the shape of an inner cavity formed by the inner side surface of each bearing fixing cover (22) and the shape of the corresponding inner cavity formed by the corresponding main beam clamping grooves (21); a plurality of rollers (20) are arranged on the inner ring body (5), the rollers (20) are uniformly distributed along the circumferential direction of the inner ring body (5), the inner ring body (5) is rotatably supported on the bearing seat body (7) through the rollers (20), the upper part of the bearing seat body (7) is semicircular, a bearing seat cover (23) is arranged at the upper end of the bearing seat body (7), and the bearing fixing cover (22) is positioned in the bearing seat cover (23); an adjusting screw (17) is arranged at the lower part of the bearing seat body (7), the bearing seat body (7) is supported on an adjustable support (14) through an adjusting nut (16) screwed with the adjusting screw (17), a nut stop mechanism (15) is arranged between the adjusting nut (16) and the adjustable support (14), the adjustable support (14) is installed and fixedly connected on the upright post (8) in a left-right adjustable way, and the nut stop mechanism (15) is a nut pressing plate installed on the upright post (8); the liquid level meter (13) is arranged on the upright posts (8), the liquid level pointer (18) corresponding to the liquid level meter (13) is arranged on the bearing seat body (7), the liquid level meter (13) on each upright post (8) is communicated with each other through the communicating pipe (12), the communicating pipe joint (19) is arranged at the lower part of the liquid level meter (13), and the liquid level meter (13) is communicated with the communicating pipe (12) through the communicating pipe joint (19); the axis of an inner cavity enclosed by the inner side surface of the bearing fixing cover (22) and the main beam clamping groove (21) is positioned on the axis of the inner ring body (5); convex edges (24) are respectively arranged on two sides of the periphery of the inner ring body (5), and two ends of the roller (20) are rotatably supported on the two convex edges (24); the upper part of the bearing seat body (7) which is in a semicircular shape is positioned between the two convex edges (24), and the width of the semicircular upper part of the bearing seat body (7) corresponds to the distance between the two convex edges (24); an adjusting screw (17) arranged at the lower part of the bearing seat body (7) is inserted into the adjustable support (14), and the adjusting nut (16) is placed on the upper side surface of the adjustable support (14); the section of the upright post (8) is rectangular, a waist-shaped hole (25) for passing through the adjustable support fixing bolt is formed in the upright post (8), and the length-diameter direction of the waist-shaped hole (25) is horizontally arranged.

2. The ganged tracking photovoltaic power plant of claim 1, wherein: an inner hole at the upper part of the semicircular bearing seat body (7) is attached to each roller (20).

3. The ganged tracking photovoltaic power plant of claim 1, wherein: the lower part of the adjustable support (14) is provided with an upright post clamping groove (26), the adjustable support (14) is sleeved on the upright post (8) through the upright post clamping groove (26), and the adjustable support (14) is fixedly connected with the upright post (8) through a bolt and a nut.