Large-torque universal joint for photovoltaic tracking support

Abstract

The large-torque universal joint for the photovoltaic tracking support comprises a connecting assembly, and the connecting assembly comprises a movable block, a first pin shaft, a fixing bolt, a slotted nut, a pin hole, a cotter pin, a second pin shaft, a pressing piece, a locking screw, a shaft sleeve and a friction gasket. The square tubes at the two ends are connected through the four pin shafts, the movable blocks, the bolts, the shaft sleeves and the like, the square tubes are locked and fixed through the cotter pins and the slotted nuts, the structure is compact, assembling is easy, parts are simple, and machining is easy. The universal joint structure is formed by connecting and combining the shaft sleeve, the friction gasket and the movable block, through special treatment, the problem of rusting caused by exposure to the outside and friction rotation is effectively solved, and the outdoor corrosion resistance is effectively improved. The angle of the universal joint structure is adjustable, the problem caused by height deviation is solved, cost is low, and the high requirement for space construction of the two adjacent rows of foundations is greatly lowered.

Description

Technical Field

[0001] The utility model relates to a universal joint, in particular to a large-torque universal joint for a photovoltaic tracking bracket, belonging to the technical field of photovoltaic tracking brackets. Background Art

[0002] Photovoltaic tracking systems automatically adjust their angle based on the sun's incident angle. Using GPS positioning and light sensors, they enable PV panels to track the sun in real time, maximizing solar energy capture and improving power generation efficiency. These systems not only conserve land and improve land use efficiency, but also improve the thermal characteristics of PV panels, extending their lifespan.

[0003] Solar tracking brackets, particularly linked types, are widely used in large-scale ground-based centralized photovoltaic power plants and industrial and commercial rooftops. While these brackets offer diverse and constantly evolving connection methods, the current mainstream solution is direct spindle connection. However, this connection method requires precise adjustments during on-site installation to ensure consistent bracket height and spacing, minimize stress and deformation, and reduce load torque. These requirements make on-site construction extremely demanding, increasing overall costs. To address this issue, a high-torque universal joint for photovoltaic tracking brackets was proposed. Utility Model Content

[0004] The purpose of the present utility model is to provide a large torque universal joint for a photovoltaic tracking bracket to solve one of the problems raised in the above background technology.

[0005] The utility model is implemented by the following technical solutions: a high-torque universal joint for a photovoltaic tracking bracket, comprising a connecting assembly, wherein the connecting assembly comprises a loose piece, a first pin shaft, a fixing bolt, a slotted nut, a pin hole, a cotter pin, a second pin shaft, a pressing piece, a locking screw, a bushing and a friction washer;

[0006] A first pin is symmetrically installed on the inner wall of the movable block, a fixing bolt is provided inside the first pin, a slotted nut is threadedly connected to the outer wall of the fixing bolt, a pin hole is provided inside the fixing bolt, a cotter pin is installed inside the pin hole, a second pin is symmetrically installed on the inner wall of the movable block, a clamping plate is provided at one end of the second pin, and the clamping plate is fixedly connected to the second pin by a locking screw, a shaft sleeve is provided on the outer wall of the first pin and the second pin, and a friction gasket is symmetrically fixedly connected to the outer wall of the movable block.

[0007] As a further preferred embodiment of the present technical solution: square tube assemblies are provided on both sides of the connecting assembly, the square tube assemblies include a first square tube, and the outside of the first pin is rotatably connected to the first square tube.

[0008] As a further preferred embodiment of the present technical solution: the square tube assembly further includes a second square tube, and the outer portion of the second pin is rotatably connected to the second square tube.

[0009] As a further preferred embodiment of the present technical solution: the bushing is arranged on the inner side walls of the first square tube and the second square tube.

[0010] As a further preferred embodiment of the present technical solution: the friction gaskets are respectively arranged between the first square tube, the second square tube and the movable block.

[0011] As a further preferred embodiment of the present technical solution: a through groove is provided on one side of the first square tube and the second square tube.

[0012] As a further preferred embodiment of the present technical solution: connecting holes are provided on the outer side walls of the first square tube and the second square tube.

[0013] As a further preferred embodiment of the present technical solution: the first square tube and the second square tube are rotatably connected to the outside of the movable block.

[0014] Advantages of this utility model:

[0015] 1. The utility model connects the square tubes at both ends through four pins, loose blocks, bolts and sleeves, and locks the slotted nuts with cotter pins. It has a compact structure, is easy to assemble, has simple parts and is easy to process.

[0016] 2. The universal joint structure of this utility model is connected by a sleeve, a friction gasket and a loose block. Through special treatment, it effectively solves the problem of rust caused by exposure to the outside and friction and rotation, and has excellent outdoor anti-corrosion performance;

[0017] 3. The angle of the universal joint structure of the utility model is adjustable, which solves the problem caused by height deviation. It is low-cost and greatly reduces the high requirements for the construction distance between two adjacent rows of foundations. At the same time, it can lock the tension generated by large loads and meet the use requirements of large torque application scenarios. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0019] Figure 1 It is a structural diagram of the utility model;

[0020] Figure 2 This is a schematic diagram of the bottom-up structure of the present invention;

[0021] Figure 3 This is a schematic cross-sectional view of the utility model;

[0022] Figure 4 This is a schematic diagram of the movable block structure of the utility model;

[0023] Figure 5 This is a schematic diagram of the structure with a gear at one end of the utility model.

[0024] In the figure: 10, square tube assembly; 11, first square tube; 12, second square tube; 13, through groove; 14, connecting hole; 20, connecting assembly; 21, loose block; 22, first pin shaft; 23, fixing bolt; 24, slotted nut; 25, pin hole; 26, cotter pin; 27, second pin shaft; 28, clamping plate; 29, locking screw; 210, bushing; 211, friction gasket. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0026] Example

[0027] See also Figure 1-Figure 4 The utility model provides a technical solution: a high-torque universal joint for a photovoltaic tracking bracket, including a connecting assembly 20, the connecting assembly 20 including a loose piece 21, a first pin 22, a fixing bolt 23, a slotted nut 24, a pin hole 25, a cotter pin 26, a second pin 27, a pressing piece 28, a locking screw 29, a sleeve 210 and a friction washer 211;

[0028] The inner wall of the movable block 21 is symmetrically mounted with a first pin shaft 22, a fixing bolt 23 is provided inside the first pin shaft 22, a slotted nut 24 is threadedly connected to the outer wall of the fixing bolt 23, a pin hole 25 is provided inside the fixing bolt 23, a cotter pin 26 is installed inside the pin hole 25, a second pin shaft 27 is symmetrically mounted on the inner wall of the movable block 21, one end of the second pin shaft 27 is provided with a clamping piece 28, the clamping piece 28 is fixedly connected to the second pin shaft 27 by a locking screw 29, the first pin shaft 22 and the second pin shaft 27 are symmetrically mounted. The outer wall is sleeved with a shaft sleeve 210, and the outer wall of the movable block 21 is symmetrically fixed with a friction gasket 211. The first pin shaft 22 and the second pin shaft 27 are installed inside the movable block 21. The first square tube 11 and the second square tube 12 are respectively sleeved on the outside of the first pin shaft 22 and the second pin shaft 27. The first pin shaft 22 is fixed by a fixing bolt 23 and a slotted nut 24, and the slotted nut 24 is locked and fixed by a cotter pin 26. The clamping plate 28 is fixed to the second pin shaft 27 by a locking screw 29 to complete the fixation of the second pin shaft 27.

[0029] In this embodiment, specifically: square tube components 10 are provided on both sides of the connecting component 20, the square tube component 10 includes a first square tube 11, the outside of the first pin shaft 22 is rotatably connected to the first square tube 11, and the first square tube 11 rotates around the first pin shaft 22.

[0030] In this embodiment, specifically, the square tube assembly 10 further includes a second square tube 12 , the second square tube 12 is rotatably connected to the outside of the second pin 27 , and the second square tube 12 rotates around the second pin 27 .

[0031] In this embodiment, specifically: the shaft sleeve 210 is provided on the inner side wall of the first square tube 11 and the second square tube 12 , and the shaft sleeve 210 is used to limit the position of the first square tube 11 and the second square tube 12 to prevent the two from being separated.

[0032] In this embodiment, specifically: the friction gasket 211 is respectively arranged between the first square tube 11 and the second square tube 12 and the movable block 21, and the friction gasket 211 can prevent rust after friction and rotation.

[0033] In this embodiment, specifically: a through slot 13 is provided on one side of the first square tube 11 and the second square tube 12 . The through slot 13 is provided on the square tube so as to be sleeved on the inner side of the main shaft of the bracket as a connection end.

[0034] In this embodiment, specifically: the outer side walls of the first square tube 11 and the second square tube 12 are provided with connecting holes 14 , and the connecting holes 14 are used to mount the square tubes on the bracket by means of bolts or other structures.

[0035] In this embodiment, specifically: the first square tube 11 and the second square tube 12 are rotatably connected to the outside of the movable block 21, and the angle of the tracking bracket can be easily adjusted by rotating the first square tube 11 and the second square tube 12.

[0036] Working principle or structural principle: When in use, the first pin shaft 22 and the second pin shaft 27 are installed inside the movable block 21, and the first square tube 11 and the second square tube 12 are respectively sleeved on the outside of the first pin shaft 22 and the second pin shaft 27, and the first pin shaft 22 is fixed by the fixing bolt 23 and the slotted nut 24, and the slotted nut 24 is locked and fixed by the cotter pin 26, and the clamping plate 28 is fixed to the second pin shaft 27 by the locking screw 29 to complete the fixation of the second pin shaft 27. The overall structure is compact and easy to assemble. The universal joint structure is connected by the sleeve 210, the friction gasket 211 and the movable block 21. Through special treatment, it effectively solves the problem of rust caused by exposure to the outside and friction rotation, and effectively improves the outdoor corrosion resistance. The universal joint structure angle is adjustable to solve the problem caused by height deviation, with low cost, which greatly reduces the high requirements for the construction of the spacing between two adjacent rows of foundations.

[0037] It should be noted that the square tube structure at both ends is only a demonstration structure provided by the embodiment of the present invention. The connection structure at both ends of the connecting component is not limited to a square shape, and can also include other shapes, such as polygons, gears and other shapes (such as Figure 5 As shown), it can also be replaced by a reducer and other devices.

[0038] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A high-torque universal joint for a photovoltaic tracking bracket, comprising a connecting assembly (20), characterized in that: The connecting assembly (20) includes a movable block (21), a first pin (22), a fixing bolt (23), a slotted nut (24), a pin hole (25), a cotter pin (26), a second pin (27), a pressing plate (28), a locking screw (29), a bushing (210) and a friction washer (211); A first pin shaft (22) is symmetrically mounted on the inner side wall of the movable block (21), a fixing bolt (23) is provided inside the first pin shaft (22), a slotted nut (24) is threadedly connected to the outer side wall of the fixing bolt (23), a pin hole (25) is provided inside the fixing bolt (23), a cotter pin (26) is installed inside the pin hole (25), a second pin shaft (27) is symmetrically mounted on the inner side wall of the movable block (21), a clamping plate (28) is provided at one end of the second pin shaft (27), and the clamping plate (28) is fixedly connected to the second pin shaft (27) through a locking screw (29), a shaft sleeve (210) is provided on the outer side wall of the first pin shaft (22) and the second pin shaft (27), and a friction gasket (211) is symmetrically fixedly connected to the outer side wall of the movable block (21).

2. A high torque universal joint for a photovoltaic tracking bracket according to claim 1, characterized in that: Square tube assemblies (10) are provided on both sides of the connection assembly (20), and the square tube assembly (10) includes a first square tube (11), and the outside of the first pin shaft (22) is rotatably connected to the first square tube (11).

3. The high-torque universal joint for a photovoltaic tracking bracket according to claim 2, characterized in that: The square tube assembly (10) further comprises a second square tube (12), and the exterior of the second pin shaft (27) is rotatably connected to the second square tube (12).

4. The high-torque universal joint for a photovoltaic tracking bracket according to claim 1, characterized in that: The shaft sleeve (210) is arranged on the inner side walls of the first square tube (11) and the second square tube (12).

5. The high-torque universal joint for a photovoltaic tracking bracket according to claim 4, characterized in that: The friction pads (211) are respectively arranged between the first square tube (11), the second square tube (12) and the movable block (21).

6. The high-torque universal joint for a photovoltaic tracking bracket according to claim 4, characterized in that: A through groove (13) is provided on one side of the first square tube (11) and the second square tube (12).

7. The high-torque universal joint for a photovoltaic tracking bracket according to claim 4, characterized in that: The outer side walls of the first square tube (11) and the second square tube (12) are provided with connecting holes (14).

8. The high-torque universal joint for a photovoltaic tracking bracket according to claim 4, characterized in that: The first square tube (11) and the second square tube (12) are rotatably connected to the outside of the movable block (21).

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