Linkage mechanism applied to photovoltaic tracking support transmission structure

Abstract

A linkage mechanism applied to a photovoltaic tracking support transmission structure comprises a motor, a rotary speed reducer, a first connecting structure, a connecting pipe, a second connecting structure and a driven speed reducer which are matched with one another. The motor drives the rotary speed reducer to rotate, the rotary speed reducer is connected with the connecting pipe through the first connecting structure, and the connecting pipe is connected with the driven speed reducer through the second connecting structure to guarantee synchronous action of the rotary speed reducer and the driven speed reducer. The connecting mode is designed to be spline connection and axial limiting fixation, the connecting pipe is of a sleeve structure, the structure is simple, adjustment and installation are convenient, the position is adjustable, and stability is good.

Description

Technical field:

[0001] The utility model relates to the field of solar photovoltaic cells, in particular to a linkage mechanism applied to a transmission structure of a photovoltaic tracking bracket. Background technology:

[0002] With the increasing demand for new energy, photovoltaic power generation has attracted more and more attention. A stable and reliable photovoltaic system has a significant impact on the power generation gain of photovoltaic power stations, especially the application of photovoltaic tracking brackets, which can increase the power generation by about 15% to 30%. In the increasingly mature tracking bracket market, photovoltaic tracking bracket reducer linkage solutions have also been born. Compared with traditional tracking brackets, the number of drive motors is reduced while ensuring the power generation remains unchanged, and the control cost is greatly reduced.

[0003] The transmission structure of the tracking bracket is the main component of the photovoltaic tracking bracket linkage solution. Its reliable structure can effectively ensure the stable operation of the tracking bracket.

[0004] The photovoltaic tracking bracket reducer linkage solution has been widely used in photovoltaic tracking systems. This utility model patent is to solve the following problems:

[0005] 1. As the main component of the reducer linkage solution for photovoltaic tracking brackets, the traditional transmission structure uses a flat key connection. Due to production errors and on-site installation errors in the matching holes of the slewing reducer and the universal joint, there is a deviation between the actual non-tracking angle and the required angle.

[0006] 2. Since the traditional transmission structure is fixed in the axial limit and uses the center hole for positioning, and the on-site terrain is complex, when the hole position error in production is large, the positioning pin may fail to be assembled, which increases the difficulty of on-site construction.

[0007] 3. The traditional transmission structure is a direct connection between the universal joint and the connecting rod. However, the terrain of the construction site is relatively complex, so the traditional method is to open a long hole on the universal joint to adjust the axial installation error. However, the adjustable margin is very limited and it is difficult to meet the complex construction site requirements. Utility model content:

[0008] In order to solve the problems in the prior art, the utility model provides a linkage mechanism applied to the transmission structure of a photovoltaic tracking bracket, which has a simple structure, is easy to adjust and install, has an adjustable position and good stability.

[0009] To achieve the above purpose, the technical solution of the utility model is:

[0010] A linkage mechanism applied to a transmission structure of a photovoltaic tracking bracket comprises a motor, a rotary reducer, a connection structure 1, a connection pipe, a connection structure 2 and a driven reducer which cooperate with each other; the motor drives the rotary reducer to rotate, the rotary reducer is connected to the connection pipe through the connection structure 1, and the connection pipe is connected to the driven reducer through the connection structure 2 to ensure synchronous movement of the rotary reducer and the driven reducer; the connection structure 1 is: the spline on the output shaft of the rotary reducer cooperates with the spline on the left end of the universal joint 1, the locating pin 1 cooperates and is fastened with the locating hole 1 on the universal joint 1, and the universal joint 1 and the connection pipe are fastened with the bolt 1; the connection structure 2 is: the universal joint 2 and the connection pipe are fastened with the bolt 2, the driven reducer cooperates with the spline on the right end of the universal joint 2 through the spline on the input shaft, and the locating pin 2 cooperates and is fastened with the locating hole 2 on the universal joint 2.

[0011] Furthermore, the connecting tube is a telescopic sleeve, the outer tube end cooperates with the first universal joint, the inner tube end cooperates with the second universal joint, and an adjustment limit structure is provided at the connection between the outer tube and the inner tube.

[0012] Furthermore, the adjustment limit structure is as follows: a long slot hole is provided at the matching position of the outer tube and the inner tube, and after the inner tube is moved and adjusted into position in the outer tube, a pin is passed through the long slot hole and tightly fixed in position.

[0013] Furthermore, the first bolt and the second bolt are both two bolts distributed vertically.

[0014] Furthermore, the splines on the output shaft of the rotary reducer and the splines on the input shaft of the driven reducer have slots for the first and second positioning pins to pass through.

[0015] With the above structure, the utility model has the following advantages over the prior art:

[0016] 1. The connection mode of the utility model is designed as a spline connection. Since the spline can meet the matching of any angle, it can improve the error of the matching hole position caused by production error and on-site installation error, thereby reducing the installation deviation and achieving the required tracking angle.

[0017] 2. The utility model adopts an offset design in axial limit fixation. Compared with the center hole positioning, it solves the problem of misalignment of holes caused by production errors and on-site installation errors, which makes installation impossible, and greatly reduces the difficulty of on-site construction.

[0018] 3. The utility model uses a split connecting rod, and realizes the purpose of axial adjustment by means of an outer tube sleeve inner tube. Compared with the traditional method of opening a long hole on the universal joint, this can meet a larger installation adjustment margin range and reduce the difficulty of on-site construction and installation. Description of the drawings:

[0019] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the drawings:

[0020] Figure 1 It is a schematic diagram of the structure of the utility model;

[0021] Figure 2 The structure of the universal joint of the utility model is shown in FIG. Figure 1 ;

[0022] Figure 3 The structure of the universal joint of the utility model is shown in FIG. Figure 2 ;

[0023] Figure 4 This is a schematic diagram of the structure of the rotary reducer of the utility model;

[0024] Figure 5 This is a schematic diagram of the structure of the driven reducer of the utility model;

[0025] Figure 6 This is a schematic diagram of the connecting pipe structure of the utility model. Specific implementation method:

[0026] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention clearer and more understandable, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0027] like Figure 1 - Figure 6 Shown is an embodiment of the utility model.

[0028] A linkage mechanism applied to the transmission structure of a photovoltaic tracking bracket comprises a motor 1, a rotary reducer 2, a connection structure 1 3, a connection pipe 4, a connection structure 2 5 and a driven reducer 6 which cooperate with each other; the motor 1 drives the rotary reducer 2 to rotate, the rotary reducer 2 is connected to the connection pipe 4 through the connection structure 1 3, and the connection pipe 4 is connected to the driven reducer 6 through the connection structure 2 5 to ensure that the rotary reducer 2 and the driven reducer 6 act synchronously; wherein the connection structure 1 3 is: the transmission of the rotary reducer 2 The spline 21 on the output shaft cooperates with the spline 32 on the left end of the universal joint 31, the locating pin 33 and the locating hole 34 on the universal joint 31 are cooperated and fastened, and the universal joint 31 and the connecting pipe 4 are fastened with a bolt 35; the connecting structure 25 is: the universal joint 251 and the connecting pipe 4 are fastened with a bolt 252, the driven reducer 6 cooperates with the spline on the right end of the universal joint 251 through the spline 61 on the input shaft, and the locating pin 2 and the locating hole 2 on the universal joint 251 are cooperated and fastened.

[0029] Further, the connecting tube 4 is a telescopic sleeve, the end of the outer tube 41 cooperates with the universal joint 1 31, the end of the inner tube 42 cooperates with the universal joint 2 51, and an adjustment limit structure 43 is provided at the connection and cooperation between the outer tube 41 and the inner tube 42. The adjustment limit structure 43 is as follows: a long slot hole 431 is provided at the cooperation between the outer tube 41 and the inner tube 42, and the inner tube 42 is moved and adjusted into position in the outer tube 41 and then is fastened in position by a pin 432 passing through the long slot hole 431.

[0030] Furthermore, the bolt 1 35 and the bolt 2 52 are both vertically distributed. The spline 21 on the output shaft of the rotary reducer 2 and the spline 61 on the input shaft of the driven reducer 6 have slots 211 and 611 for the positioning pin 1 33 and the positioning pin 2 54 to pass through.

[0031] After the utility model is installed, the motor of the rotary reducer drives the rotary reducer, and the output shaft of the rotary reducer rotates, driving the first universal joint, the connecting pipe, and the second universal joint to rotate, thereby driving the input shaft of the driven reducer to rotate, so as to drive the driven reducer to realize the simultaneous driving of two reducers.

[0032] The connection mode of the utility model is designed as a spline connection. Since the spline can meet the matching of any angle, the error of the matching hole position caused by production error and on-site installation error can be improved, thereby reducing the installation deviation and achieving the required tracking angle.

[0033] The utility model adopts an offset design in axial limit fixation, and compared with the center hole positioning, it solves the problem of misaligned holes and incompatible installation caused by production errors and on-site installation errors, thereby greatly reducing the difficulty of on-site construction.

[0034] The utility model uses a split connecting rod, and realizes the purpose of axial adjustment by means of an outer tube sleeve inner tube. Compared with the traditional method of opening a long hole on the universal joint, this can meet a larger installation adjustment margin range and reduce the difficulty of on-site construction and installation.

[0035] The above description shows and describes the preferred embodiments of the utility model. As mentioned above, it should be understood that the utility model is not limited to the form disclosed herein, and should not be regarded as excluding other embodiments, but can be used in various other combinations, modifications and environments, and can be modified within the scope of the utility model concept described herein through the above teachings or the technology or knowledge of the relevant field. The changes and modifications made by those skilled in the art do not depart from the spirit and scope of the utility model, and should be within the scope of protection of the claims attached to the utility model.

Claims

1. A linkage mechanism applied to a transmission structure of a photovoltaic tracking bracket, characterized in that: It includes a motor, a rotary reducer, a connection structure 1, a connection pipe, a connection structure 2 and a driven reducer that cooperate with each other; the motor drives the rotary reducer to rotate, the rotary reducer is connected to the connection pipe through the connection structure 1, and the connection pipe is connected to the driven reducer through the connection structure 2 to ensure the synchronous movement of the rotary reducer and the driven reducer; the connection structure 1 is: the spline on the output shaft of the rotary reducer cooperates with the spline at the left end of the universal joint 1, the locating pin 1 and the locating hole 1 on the universal joint 1 are matched and fastened, and the universal joint 1 and the connection pipe are fastened with bolt 1; the connection structure 2 is: the universal joint 2 and the connection pipe are fastened with bolt 2, the driven reducer cooperates with the spline on the right end of the universal joint 2 through the spline on the input shaft, and the locating pin 2 and the locating hole 2 on the universal joint 2 are matched and fastened.

2. The linkage mechanism applied to the transmission structure of a photovoltaic tracking bracket according to claim 1, characterized in that: The connecting pipe is a telescopic sleeve, the outer pipe end is matched with the first universal joint, the inner pipe end is matched with the second universal joint, and an adjustment limit structure is arranged at the connection point between the outer pipe and the inner pipe.

3. The linkage mechanism applied to the transmission structure of a photovoltaic tracking bracket according to claim 2, characterized in that: The adjustment and limiting structure is as follows: a long slot hole is provided at the matching position of the outer tube and the inner tube, and the inner tube is moved and adjusted into position in the outer tube and then is fastened in position by a pin passing through the long slot hole.

4. A linkage mechanism applied to a transmission structure of a photovoltaic tracking support as claimed in claim 1, 2 or 3, characterized in that: The first bolt and the second bolt are both two bolts distributed vertically.

5. A linkage mechanism applied to a transmission structure of a photovoltaic tracking support as claimed in claim 1, 2 or 3, characterized in that: The splines on the output shaft of the rotary reducer and the splines on the input shaft of the driven reducer have slots for the first and second positioning pins to pass through.

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