Pulley guiding device for inclined single-shaft tracking photovoltaic support

Abstract

The utility model discloses a pulley guide device for an inclined single-shaft tracking photovoltaic support, which comprises a mounting plate I and a mounting plate II, and a pulley I, a pulley II, a pulley III and a pulley IV are arranged between the mounting plate I and the mounting plate II on two sides. A pin shaft I and a pin shaft II are rotationally connected into the pulley I and the pulley II and the pulley III and the pulley IV respectively, the two ends of the pin shaft I and the two ends of the pin shaft II are welded and fixed between the mounting plate I and the mounting plate II, the two ends of the pin shaft I are sleeved with a brass sleeve I and a brass sleeve II, and the two ends of the pin shaft II are sleeved with a brass sleeve III and a brass sleeve IV; the middle of the pulley I, the middle of the pulley II, the middle of the pulley III and the middle of the pulley IV are correspondingly sleeved with a brass sleeve I, a brass sleeve II, a brass sleeve III and a brass sleeve IV respectively. By means of the structure, the problems that a traditional pulley guide device is high in cost, low in precision, low in bearing capacity and poor in structural stability are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of pulley guide devices, in particular to a pulley guide device for an oblique single-axis tracking photovoltaic support. Background Art

[0002] With the widespread adoption and development of solar power as a new energy source, improving the performance of photovoltaic systems has become a hot topic of research. As part of a solar power generation system, photovoltaic tracking brackets not only provide support for photovoltaic modules, but their design also significantly impacts the amount of radiation received by the photovoltaic receiving surface, thereby affecting the system's power generation performance. Traditional pulley guides feature a central pin that mates directly with the pulleys, with a sleeve separating the two pulleys. The steel used is almost entirely stainless steel for rust resistance, which is costly.

[0003] The middle pin of the traditional pulley guide device directly cooperates with the pulley, which will wear out severely after long-term use, resulting in incomplete cooperation, thereby affecting the accuracy and stability of the inclined single-axis tracking photovoltaic bracket; the steel materials used in the traditional pulley guide device are almost all made of stainless steel to achieve the purpose of rust prevention. The price of stainless steel is high, making it difficult for the inclined single-axis tracking bracket to achieve cost reduction and efficiency improvement; therefore, a pulley guide device for the inclined single-axis tracking photovoltaic bracket is proposed. Utility Model Content

[0004] In view of the deficiencies in the prior art, the present invention provides a pulley guide device for an oblique single-axis tracking photovoltaic bracket, which solves the problems of high cost, low precision, low bearing capacity and poor structural stability of traditional pulley guide devices.

[0005] The utility model also provides the above-mentioned pulley guide device for the inclined single-axis tracking photovoltaic bracket, comprising: a mounting plate I and a mounting plate II, a pulley I, a pulley II, a pulley III, and a pulley IV are provided between the mounting plate I and the mounting plate II on both sides, the pulley I and the pulley II are rotatably connected with a pin shaft I and a pin shaft II in the pulley III and the pulley IV respectively, the mounting plate I and the mounting plate II are welded and fixed at both ends of the pin shaft I and the pin shaft II, the two ends of the pin shaft I are sleeved with a brass sleeve I and a brass sleeve II, the two ends of the pin shaft II are sleeved with a brass sleeve III and a brass sleeve IV, the pulley I, the pulley II, the pulley III and the pulley IV are respectively sleeved with a brass sleeve I, a brass sleeve II, a brass sleeve III and a brass sleeve IV in the middle.

[0006] According to the pulley guide device for an oblique single-axis tracking photovoltaic support, the mounting plate I and the mounting plate II are used to limit the movement of the two sets of pulleys and fix the entire pulley guide device.

[0007] According to the pulley guide device for an oblique single-axis tracking photovoltaic support, a step structure is provided in the middle of the pin shaft I to separate the pulley I and the pulley II installed at both ends.

[0008] According to the pulley guide device for an oblique single-axis tracking photovoltaic support, a step structure is provided in the middle of the pin shaft II to separate the pulley III and the pulley IV installed at both ends.

[0009] According to the pulley guide device for an oblique single-axis tracking photovoltaic bracket, the pulleys I, II, III and IV are interference fit with the brass sleeves I, II, III and IV.

[0010] According to the pulley guide device for an oblique single-axis tracking photovoltaic support, the pin shaft I and the pin shaft II are clearance-matched with the brass sleeve I, the brass sleeve II, the brass sleeve III and the brass sleeve IV.

[0011] The utility model has the following beneficial effects:

[0012] 1. In the present invention, a brass sleeve is added between the pin and the pulley. The brass material has better wear resistance under low speed and high load conditions, which effectively solves the problems of poor precision and low stability of traditional pulley guide devices.

[0013] 2. In the present invention, only the middle pin in the pulley guide device is made of stainless steel, and almost all other components are made of ordinary steel materials, which effectively solves the high cost problem of traditional pulley guide devices.

[0014] Additional aspects and advantages of the present invention will be given in part in the following description and will become apparent from the following description or learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The present invention will be further described below with reference to the accompanying drawings and embodiments;

[0016] Figure 1 This is a structural diagram of a pulley guide device for an oblique single-axis tracking photovoltaic support in the utility model;

[0017] Figure 2 This is an exploded view of a pulley guide device for an oblique single-axis tracking photovoltaic support according to the present invention;

[0018] Figure 3 This is a front view of a pulley guide device for an oblique single-axis tracking photovoltaic support according to the present invention;

[0019] Figure 4 This is a top view of a pulley guide device for an oblique single-axis tracking photovoltaic support according to the present invention.

[0020] Legend:

[0021] 1. Mounting plate I; 2. Mounting plate II; 3. Pulley I; 4. Pulley II; 5. Pulley III; 6. Pulley IV; 7. Pin I; 8. Pin II; 9. Brass sleeve I; 10. Brass sleeve II; 11. Brass sleeve III; 12. Brass sleeve IV. DETAILED DESCRIPTION

[0022] This section will describe in detail the specific embodiments of the present invention. The preferred embodiments of the present invention are shown in the accompanying drawings. The purpose of the accompanying drawings is to supplement the description of the text part of the specification with graphics, so that people can intuitively and vividly understand each technical feature and overall technical solution of the present invention, but it cannot be understood as a limitation on the scope of protection of the present invention.

[0023] Reference Figure 1-4 The present invention provides a pulley guide device for an oblique single-axis tracking photovoltaic support, which includes a mounting plate I1 and a mounting plate II2. The mounting plate I1 is longer than the mounting plate II2. Pulleys I3, II4, III5, and IV6 are provided between the mounting plates I1 and II2 on both sides. The pulleys I3, II4, III5, and IV6 are all of the same size. The mounting plates I1 and II2 are used to limit the movement of the two sets of pulleys and fix the entire pulley guide device.

[0024] Pulley I3 and pulley II4 are rotatably connected with pulley III5 and pulley IV6 via pins I7 and II8, respectively. The ends of pins I7 and II8 are fixed by welding between mounting plates I1 and II2. Brass sleeves I9 and II10 are sleeved at both ends of pin I7. A step structure is provided in the middle of pin I7 to separate pulleys I3 and II4 installed at both ends. Brass sleeves III11 and IV12 are sleeved at both ends of pin II8. A step structure is provided in the middle of pin II8 to separate pulleys III5 and IV6 installed at both ends. In this pulley guide device, only pins I7 and II8 are made of stainless steel, and almost all other components are made of ordinary steel, which effectively solves the problem of high cost of traditional pulley guide devices.

[0025] Pulley Ⅰ3, pulley Ⅱ4, pulley Ⅲ5 and pulley Ⅳ6 are respectively equipped with brass sleeve Ⅰ9, brass sleeve Ⅱ10, brass sleeve Ⅲ11 and brass sleeve Ⅳ12 in the middle. Under the action of the brass sleeve, the pulleys have better wear resistance under low speed and high load conditions. Pulley Ⅰ3, pulley Ⅱ4, pulley Ⅲ5 and pulley Ⅳ6 adopt interference fit with brass sleeve Ⅰ9, brass sleeve Ⅱ10, brass sleeve Ⅲ11 and brass sleeve Ⅳ12 to make their fit tighter. Pin shaft Ⅰ7 and pin shaft Ⅱ8 are clearance fit with brass sleeve Ⅰ9, brass sleeve Ⅱ10, brass sleeve Ⅲ11 and brass sleeve Ⅳ12, making the pulleys smoother during use.

[0026] Working principle: When the inclined single-axis tracking photovoltaic bracket needs to track the position of the sun, the wire rope is driven downward by the drive system. One group of wire ropes passes around pulley Ⅰ3 and pulley Ⅲ5, and the wire rope passes around pulley Ⅰ3 downward, and then passes around pulley Ⅲ5 upward, which plays the role of wire rope guidance. Another group of wire ropes passes around pulley Ⅱ4 and pulley Ⅳ6, and the wire rope passes around pulley Ⅱ4 downward, and then passes around pulley Ⅳ6 upward, which plays the role of wire rope guidance.

[0027] The embodiments of the present invention are described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Various changes can be made within the scope of knowledge possessed by ordinary technicians in the relevant technical field without departing from the purpose of the present invention.

Claims

1. A pulley guide device for an oblique single-axis tracking photovoltaic support, characterized in that: include: Mounting plate I (1) and mounting plate II (2), pulley I (3), pulley II (4), pulley III (5), pulley IV (6) are provided between said mounting plate I (1) and mounting plate II (2) on both sides, said pulley I (3) and pulley II (4) are rotatably connected with pin shaft I (7) and pin shaft II (8) in pulley III (5) and pulley IV (6), respectively, said mounting plate I (1) and mounting plate II (2) are welded with a fixed pin shaft I ( 7) and two ends of the pin shaft II (8), the two ends of the pin shaft I (7) are sleeved with brass sleeve I (9) and brass sleeve II (10), the two ends of the pin shaft II (8) are sleeved with brass sleeve III (11) and brass sleeve IV (12), and the pulley I (3), pulley II (4), pulley III (5) and pulley IV (6) are respectively sleeved with brass sleeve I (9), brass sleeve II (10), brass sleeve III (11) and brass sleeve IV (12) in the middle.

2. A pulley guide device for an oblique single-axis tracking photovoltaic support according to claim 1, characterized in that: The mounting plate I (1) and the mounting plate II (2) are used to limit the movement of the two sets of pulleys and fix the entire pulley guide device.

3. The pulley guide device for an oblique single-axis tracking photovoltaic support according to claim 2, characterized in that: A step structure is provided in the middle of the pin shaft I (7) to separate the pulley I (3) and the pulley II (4) installed at both ends.

4. The pulley guide device for an oblique single-axis tracking photovoltaic support according to claim 3, characterized in that: A step structure is provided in the middle of the pin shaft II (8) to separate the pulley III (5) and the pulley IV (6) installed at both ends.

5. The pulley guide device for an oblique single-axis tracking photovoltaic support according to claim 4, characterized in that: The pulley I (3), pulley II (4), pulley III (5) and pulley IV (6) are interference fit with the brass sleeve I (9), brass sleeve II (10), brass sleeve III (11) and brass sleeve IV (12).

6. The pulley guide device for an oblique single-axis tracking photovoltaic support according to claim 5, characterized in that: The pin shaft I (7) and the pin shaft II (8) are clearance-matched with the brass sleeve I (9), the brass sleeve II (10), the brass sleeve III (11) and the brass sleeve IV (12).

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