CN219796011U

CN219796011U - Sprocket and photovoltaic tracking support with V type staple bolt

Info

Publication number: CN219796011U
Application number: CN202320909032.8U
Authority: CN
Inventors: 张菡; 粟明广; 徐永兴; 朱建静; 吴克明
Original assignee: Versolsolar Hangzhou Co ltd
Current assignee: Versolsolar Hangzhou Co ltd
Priority date: 2023-04-21
Filing date: 2023-04-21
Publication date: 2023-10-03
Anticipated expiration: 2033-04-21

Abstract

The utility model provides a sprocket with a V-shaped anchor ear and a photovoltaic tracking bracket, wherein the V-shaped lower anchor ear is welded on an asymmetric sprocket through designing the asymmetric sprocket and the V-shaped lower anchor ear is relatively fixed with the V-shaped upper anchor ear to wrap a square transmission main shaft, so that torsion between the V-shaped anchor ear and the square transmission main shaft can be prevented, the V-shaped anchor ear is tightly matched with the square transmission main shaft, and the matching precision between the asymmetric sprocket and a rotor is further improved. In addition, set up the sprocket to asymmetry to can make there are two kinds of cooperation modes between sprocket and the rotor, respectively: (1) The speed reducer and the rotor are positioned under the square transmission main shaft, and the rotation center of the rotor and the rotation center of the chain wheel are positioned on the same vertical line; (2) The speed reducer and the rotor are arranged on the outer side of the upright post, and an included angle which is different from 0 is formed between a connecting line formed by the rotation center of the rotor and the rotation center of the chain wheel and the vertical direction.

Description

Sprocket and photovoltaic tracking support with V type staple bolt

Technical Field

The utility model belongs to the technical field of photovoltaic tracking brackets, and particularly relates to a chain wheel with V-shaped anchor ears and a photovoltaic tracking bracket.

Background

The rotation of photovoltaic tracker benefits from the close fit of actuating mechanism and drive mechanism, and the connection of rotation main shaft and staple bolt exists the installation clearance in the drive mechanism of tracker on the market at present, influences the cooperation precision between sprocket and the rotor easily, for example: the rotating main shaft adopts a square tube form, and the anchor ear adopts a U-shaped anchor ear form; or the rotating main shaft is in a round tube form, the anchor ear is in a round anchor ear form, and the like. This type of engagement is prone to twisting between the rotating spindle and the anchor ear, thereby degrading the accuracy of the transmission and possibly losing the benefit of the tracking system.

For this reason, there is a need for an improvement in this mating relationship to at least partially alleviate the above-mentioned problems.

Disclosure of Invention

A first object of the present utility model is to provide a sprocket having V-shaped anchor ears, which addresses the above-described problems.

For this purpose, the above object of the present utility model is achieved by the following technical solutions:

a sprocket with V-shaped anchor ear, characterized in that: the chain wheel with the V-shaped anchor ear comprises an asymmetric chain wheel and a V-shaped lower anchor ear welded on the asymmetric chain wheel;

the V-shaped lower anchor ear and the V-shaped upper anchor ear are relatively fixed so as to hold the square transmission main shaft.

The utility model can also adopt or combine the following technical proposal when adopting the technical proposal:

as a preferred technical scheme of the utility model: a plurality of chain wheel reinforcing ribs are arranged between the asymmetric chain wheel and the side wall of the V-shaped lower hoop.

As a preferred technical scheme of the utility model: the two ends of the asymmetric sprocket are provided with sprocket lugs, and a neutral zone is arranged between the sprocket lugs and the gear zone of the asymmetric sprocket.

As a preferred technical scheme of the utility model: the main body of the asymmetric sprocket is provided with at least one hollowed-out area, and the hollowed-out areas are arranged so that the weight of the asymmetric sprocket is symmetrically distributed on two sides of the integral symmetry axis of the asymmetric sprocket.

It is a further object of the present utility model to provide a photovoltaic tracking bracket having a sprocket with V-shaped staples as previously described.

Drawings

Fig. 1 shows an arrangement of a sprocket with V-shaped anchor ear according to the present utility model.

Fig. 2 shows another arrangement of the sprocket with V-shaped anchor ear according to the present utility model.

Fig. 3 is a rotational illustration of an asymmetric sprocket corresponding to fig. 1.

Fig. 4 is a rotational illustration of an asymmetric sprocket corresponding to fig. 2.

Fig. 5 is a perspective view of the square transmission main shaft embraced by the V-shaped upper hoop and the V-shaped lower hoop.

Fig. 6 is an expanded cross-sectional view of the square drive spindle with the V-shaped upper hoop and V-shaped lower hoop.

Fig. 7 is a front view of a photovoltaic tracking bracket having a sprocket with V-shaped anchor ears.

Fig. 8 is a perspective view of a photovoltaic tracking bracket having a sprocket with V-shaped anchor ears.

Detailed Description

The utility model will be described in further detail with reference to the drawings and specific embodiments.

A chain wheel with V-shaped hoops for a tracker transmission structure comprises a pair of V-shaped upper and lower hoops (V-shaped upper hoop 122 and V-shaped lower hoop 121), a fan-shaped asymmetric chain wheel 110, 4 chain wheel lug plates 111 and 4 chain wheel reinforcing ribs 112 for reinforcing the strength of the joint of the chain wheel and the V-shaped lower hoop 121.

The sprocket is arranged asymmetrically, so that two matching modes exist between the sprocket and the rotor 140, namely: (1) The speed reducer and the rotor 140 are positioned under the square transmission main shaft 130, and the rotation center of the rotor 140 and the rotation center of the fan-shaped asymmetric sprocket 110 are positioned on the same vertical line; (2) The speed reducer and the rotor 140 are positioned on the outer side of the upright post, and an included angle which is different from 0 is formed between a connecting line formed by the rotation center of the rotor 140 and the rotation center of the fan-shaped asymmetric sprocket 110 and the vertical direction, as shown in fig. 1 and 2.

In this embodiment, two hollowed areas 131 are disposed on the sprocket, so that the weight of the asymmetric sprocket 110 is symmetrically distributed on two sides of the overall symmetry axis of the asymmetric sprocket 110.

Because the staple bolt is V type structure, consequently, the sprocket is in order to combine staple bolt appearance and rotation interval, designs to be asymmetric. The sector asymmetric sprocket 110 can rotate about a center line of + -60 deg., and is not limited to + -60 deg., but can also rotate about an oblique center line as shown in fig. 3 and 4.

As shown in fig. 5 to 8, the sector-shaped asymmetric sprocket 110 is welded as a main body to the V-shaped lower hoop 121; the V-shaped upper anchor ear 122 and the V-shaped lower anchor ear 121 are fixedly connected to the square transmission main shaft 130 through bolts; sprocket reinforcing ribs 112 are welded on two sides of the fan-shaped asymmetric sprocket 110, and connect the fan-shaped asymmetric sprocket 110 with the V-shaped lower anchor ear 121 to play a role in fixing and reinforcing; the left and right ends of the fan-shaped asymmetric sprocket 110 are respectively fixed by two sprocket lugs 111 through bolts, and serve as a neutral zone, and play a role in limiting and protecting when the tracker rotates beyond a normal working angle.

The sector asymmetric sprocket 110 is meshed with a rotor 140, the rotor 140 is driven by a speed reducer, and the rotor 140 rotates the sprocket, thereby driving the square drive spindle 130 and the upper assembly to rotate.

The above detailed description is intended to illustrate the present utility model by way of example only and not to limit the utility model to the particular embodiments disclosed, but to limit the utility model to the precise embodiments disclosed, and any modifications, equivalents, improvements, etc. that fall within the spirit and scope of the utility model as defined by the appended claims.

Claims

1. A sprocket with V-shaped anchor ear, characterized in that: the chain wheel with the V-shaped anchor ear comprises an asymmetric chain wheel and a V-shaped lower anchor ear welded on the asymmetric chain wheel;

2. The sprocket with V-shaped staple of claim 1 wherein: a plurality of chain wheel reinforcing ribs are arranged between the asymmetric chain wheel and the side wall of the V-shaped lower hoop.

3. The sprocket with V-shaped staple of claim 1 wherein: the two ends of the asymmetric sprocket are provided with sprocket lugs, and a neutral zone is arranged between the sprocket lugs and the gear zone of the asymmetric sprocket.

4. The sprocket with V-shaped staple of claim 1 wherein: the main body of the asymmetric sprocket is provided with at least one hollowed-out area, and the hollowed-out areas are arranged so that the weight of the asymmetric sprocket is symmetrically distributed on two sides of the integral symmetry axis of the asymmetric sprocket.

5. A photovoltaic tracking bracket, characterized in that: the photovoltaic tracking bracket has a sprocket with V-shaped anchor ear as defined in any one of claims 1-4.