A linear transmission device based on a U-shaped guide rail

Abstract

This utility model discloses a linear transmission device based on U-shaped guide rails, relating to the field of photovoltaic equipment technology. It includes a load-bearing component with multiple U-shaped guide rails spaced apart on its upper surface, the openings of which are opposite to the load-bearing component; a lead screw horizontally positioned within the openings of the U-shaped guide rails; a forward / reverse low-speed motor fixed to the end of the load-bearing component, its output connected to the lead screw; two lead screw nut seats in each U-shaped guide rail opening, fitted onto the lead screw, with a connecting component at the upper end of each seat; a connecting seat and a hinge, the connecting seat and hinge being connected to the connecting component via a locking component for fixed connection to the lead screw nut seats; and the hinge being connected to a photovoltaic bracket support rod. This linear transmission device based on U-shaped guide rails achieves the technical advantages of simple structure, low cost, and strong load-bearing capacity.

Description

Technical Field

[0001] This utility model relates to the field of photovoltaic equipment technology, and in particular to a linear transmission device based on a U-shaped guide rail. Background Technology

[0002] In the construction of residential photovoltaic (PV) systems, the PV mounting system, as a key structure supporting the PV modules, directly affects the system's power generation efficiency, safety, and lifespan. Traditional PV mounting systems mostly use a fixed structure, which cannot be adjusted for displacement, limiting the optimal angle for PV modules to receive sunlight. To improve power generation efficiency, more and more residential systems are adopting adjustable tilt angle or even tracking mounting systems. These systems typically require a certain degree of linear motion control capability to achieve precise adjustment of the PV panel angle.

[0003] Currently, the main devices used in the market for achieving linear transmission include gears and racks, and synchronous belts. However, existing linear transmission devices have the following problems:

[0004] The cost is high and the price is expensive, making it difficult to meet the low-cost requirements of residential photovoltaic systems;

[0005] With limited load-bearing capacity, residential photovoltaic systems need to withstand external environmental loads such as wind and snow loads for a long time, which affects the stability and durability of the system.

[0006] Therefore, how to provide a linear transmission device based on a U-shaped guide rail that is simple in structure, low in cost, and has a strong load-bearing capacity is a technical problem that needs to be solved by those skilled in the art. Utility Model Content

[0007] The purpose of this invention is to provide a linear transmission device based on a U-shaped guide rail, which solves the technical problems of high cost and limited load-bearing capacity of existing linear transmission devices.

[0008] To achieve the above objectives, this utility model provides a linear transmission device based on a U-shaped guide rail, comprising:

[0009] A load-bearing component, wherein the upper end face of the load-bearing component is provided with a plurality of U-shaped guide rails spaced apart, and the opening grooves of the U-shaped guide rails are disposed away from the load-bearing component;

[0010] The lead screw is horizontally positioned within the opening groove of the U-shaped guide rail;

[0011] A forward and reverse low-speed motor is fixed to the end of the load-bearing component, and the output end of the forward and reverse low-speed motor is connected to the lead screw;

[0012] Two lead screw nut seats are provided in the opening groove of each U-shaped guide rail. The lead screw nut seats are sleeved on the lead screw, and the upper end of the lead screw nut seats is provided with a connecting component.

[0013] The connecting seat and the hinge are connected to the connecting assembly via a locking member to fix them to the lead screw nut seat. The hinge is connected to the photovoltaic bracket support rod.

[0014] Preferably, each of the U-shaped guide rails is provided with a lead screw support at both ends, the lead screw support is used to support the lead screw, and the lead screw support is fixedly connected to the load-bearing component.

[0015] Preferably, the connection component includes:

[0016] A bolt, wherein the bolt is disposed at the upper end of the lead screw nut seat;

[0017] A limiting piece is symmetrically arranged on the outer circumferential surface of the bolt, and the limiting piece is located directly above the U-shaped guide rail;

[0018] The load-bearing bearings are symmetrically arranged at the bottom of the bolts and are attached to the lower end face of the opening flange of the U-shaped guide rail.

[0019] Preferably, the upper end face of the connecting seat is a plane, and the lower end face of the connecting seat is provided with a limiting groove for accommodating the limiting piece. The connecting seat is provided with a through hole for the bolt to pass through. The lower end face of the hinge is a plane, and the lower end face of the hinge is fitted against the upper end face of the connecting seat. The hinge is provided with a through hole opposite to the through hole for the bolt to pass through.

[0020] Preferably, the locking component includes a locking nut and a locking washer. The locking washer is sleeved on the bolt and fits against the upper end face of the hinge. The locking nut is threadedly connected to the bolt and fits against the upper end face of the locking washer.

[0021] Preferably, the lower end face of the U-shaped guide rail is connected to the load-bearing component by welding or bolting.

[0022] Preferably, the forward and reverse low-speed motor is connected to the lead screw via a coupling.

[0023] Preferably, it also includes a position sensor, which is disposed at the end of the U-shaped guide rail and is used to detect the displacement limit position of the lead screw nut seat.

[0024] Compared to the aforementioned background technology, this utility model provides a linear transmission device based on a U-shaped guide rail. Each U-shaped guide rail has two lead screw nut seats in its opening slot. The lead screw nut seats are sleeved on the lead screw. Through the rotational movement of the lead screw, the lead screw nut seats can move linearly along the axis of the lead screw. A connecting component is provided at the upper end of the lead screw nut seat for connecting to a connecting seat. The connecting seat and the hinge are connected to the connecting component through a locking component to achieve a fixed connection with the lead screw nut seat. Through the connection of the hinge, when the lead screw nut seat moves linearly under the drive of the lead screw, it can drive the photovoltaic bracket support rod to move. Since the two lead screw nut seats in this application are connected to the same hinge, the smooth movement of the hinge and the load-bearing capacity of the hinge can be guaranteed. Therefore, the linear transmission device based on a U-shaped guide rail provided in this application has a simple structure, low cost, and strong load-bearing capacity. Attached Figure Description

[0025] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0026] Figure 1 A front view of a linear transmission device based on a U-shaped guide rail provided in an embodiment of this utility model;

[0027] Figure 2 A top view of a linear transmission device based on a U-shaped guide rail provided in an embodiment of this utility model;

[0028] Figure 3 This is a schematic diagram of the U-shaped guide rail structure provided in an embodiment of the present utility model;

[0029] Figure 4 This is a schematic diagram of the lead screw nut seat structure provided in an embodiment of the present utility model;

[0030] Figure 5 This is a schematic diagram of the connector structure provided in an embodiment of the present utility model.

[0031] in:

[0032] 1-Bearing component, 2-U-shaped guide rail, 3-Screw, 4-Reverse low-speed motor, 5-Screw nut seat, 6-Connecting seat, 7-Hinge, 8-Screw support seat, 9-Bolt, 10-Limiting plate, 11-Force bearing, 12-Limiting groove, 13-Through hole, 14-Locking nut, 15-Locking washer. Detailed Implementation

[0033] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0034] To enable those skilled in the art to better understand the present invention, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0035] See Figures 1-3 This application provides a linear transmission device based on U-shaped guide rails, including a load-bearing component 1, with multiple U-shaped guide rails 2 spaced apart on the upper surface of the load-bearing component 1, the opening slots of the U-shaped guide rails 2 being disposed away from the load-bearing component 1; a lead screw 3, horizontally disposed within the opening slots of the U-shaped guide rails 2; a forward and reverse low-speed motor 4, fixedly disposed at the end of the load-bearing component 1, the output end of the forward and reverse low-speed motor 4 being connected to the lead screw 3; lead screw nut seats 5, with two lead screw nut seats 5 disposed within the opening slots of each U-shaped guide rail 2, the lead screw nut seats 5 being sleeved on the lead screw 3, and a connecting assembly being disposed at the upper end of the lead screw nut seats 5; a connecting seat 6 and a hinge 7, the connecting seat 6 and the hinge 7 being connected to the connecting assembly through a locking member to be fixedly connected to the lead screw nut seats 5, and the hinge 7 being connected to the photovoltaic bracket support rod.

[0036] In other words, multiple U-shaped guide rails 2 are evenly arranged at a certain interval on the upper surface of the load-bearing component 1. The U-shaped guide rails 2 are in the shape of a standard U-shape, with the opening slots facing away from the load-bearing component 1. The lead screw 3 is horizontally arranged in the opening slots of the U-shaped guide rails 2, and the lead screw 3 is a ball screw.

[0037] The forward and reverse low-speed motor 4 is fixedly installed at the end of the load-bearing component 1. The output end of the forward and reverse low-speed motor 4 is connected to the lead screw 3. The forward and reverse low-speed motor 4 is also equipped with a corresponding control switch to achieve precise control of the forward and reverse rotation and speed of the motor.

[0038] Each U-shaped guide rail 2 has two lead screw nut seats 5 in its opening slot. The lead screw nut seats 5 are sleeved on the lead screw 3. Through the rotation of the lead screw 3, the lead screw nut seats 5 can move linearly along the axis of the lead screw 3. The upper end of the lead screw nut seat 5 is provided with a connecting component for connecting with the connecting seat 6. The connecting seat 6 and the hinge 7 are connected to the connecting component through a locking component to achieve a fixed connection with the lead screw nut seat 5.

[0039] Through the connection of the hinge 7, when the lead screw nut seat 5 moves linearly under the drive of the lead screw 3, it can drive the photovoltaic bracket support rod to move. Since the two lead screw nut seats 5 of this application are connected to the same hinge 7, the smooth movement of the hinge can be guaranteed, as well as the load-bearing capacity of the hinge. Therefore, the linear transmission device based on the U-shaped guide rail provided by this application has a simple structure, low cost and strong load-bearing capacity.

[0040] Based on the above embodiments, each U-shaped guide rail 2 is provided with a lead screw support seat 8 at both ends. The lead screw support seat 8 is used to support the lead screw 3 and is fixedly connected to the load-bearing component 1.

[0041] In other words, each U-shaped guide rail 2 is provided with a screw support seat 8 at both ends. The screw support seat 8 is firmly connected to the load-bearing component 1 by bolts or welding. The fixed connection method not only enhances stability, but also enables the screw support seat 8 to effectively transfer the load from the screw 3 to the load-bearing component 1.

[0042] In addition, the screw support seat 8 is preferably connected by a threaded connection. When it is necessary to inspect or replace the screw 3, the screw support seat 8 can be easily disassembled to carry out the necessary repair or replacement work without having to disassemble the entire device on a large scale, which greatly reduces maintenance costs and time.

[0043] Based on the above embodiments, see Figure 4 , Figure 5 The connecting components include bolts 9, which are located at the upper end of the lead screw nut seat 5; limit plates 10, which are symmetrically arranged on the outer circumferential surface of bolts 9 and located directly above the U-shaped guide rail 2; load bearings 11, which are symmetrically arranged at the bottom of bolts 9 and fit against the lower end face of the opening flange of the U-shaped guide rail 2; the upper end face of the connecting seat 6 is flat, and the lower end face of the connecting seat 6 is provided with a limit groove 12 for accommodating the limit plates 10; the connecting seat 6 is provided with a through hole 13 for bolts 9 to pass through; the lower end face of the hinge 7 is flat and fits against the upper end face of the connecting seat 6; the hinge 7 is provided with a through hole opposite to the through hole 13 for bolts 9 to pass through.

[0044] In other words, bolt 9 is located at the upper end of the lead screw nut seat 5 to ensure that it can withstand various forces and vibrations generated during transmission, while ensuring the stability and durability of the connection.

[0045] The limiting piece 10 is symmetrically arranged on the outer circumferential surface of the bolt 9 and located directly above the U-shaped guide rail 2. The size and shape of the limiting piece 10 match the limiting groove 12 of the connecting seat 6 to ensure that the two can fit tightly together and achieve an effective limiting function.

[0046] The load-bearing bearing 11 is symmetrically arranged at the bottom of the bolt 9 and fits against the lower end face of the open wing of the U-shaped guide rail 2. The upper end face of the connecting seat 6 is flat, which facilitates tight fit with the hinge 7. The lower end face of the hinge 7 is also flat and fits tightly against the upper end face of the connecting seat 6. The hinge 7 is provided with a through hole opposite to the through hole 13, through which the bolt 9 passes and achieves the fastening effect.

[0047] When the hinge 7 is under pressure, the load is transmitted evenly from the connecting seat 6 to the screw nut seat 5, so that the balls of the screw nut seat 5 bear a more uniform force. Then, the pressure is transmitted through the screw nut seat 5 to the screw with strong load-bearing capacity (i.e., cylindrical roller), and then to the U-shaped guide rail 2, thus realizing the effective distribution and bearing of the load.

[0048] When the hinge 7 is under tension, on the one hand, the two bearings 11 are clamped at the lower end face of the opening wing of the U-shaped guide rail 2 to share the upward tension, reducing the tension borne by the lead screw nut seat 5 and the lead screw 3. On the other hand, the lead screw 3 connected to the lead screw nut seat 5 also bears part of the tension, further dispersing the stress. Finally, the resultant force is jointly borne by the U-shaped guide rail 2 and the part connected to the load-bearing component 1, ensuring the stability and safety of the entire device under tension.

[0049] Based on the above embodiments, for U-shaped guide rails 2 with different wing edges, the range of motion of the limiting piece 10 in the limiting groove 12 of the connecting seat 6 is the adjustable height. Therefore, the larger the adjustable range of the limiting groove 12 of the connecting seat 6, the more the force bearing 11 used is symmetrically arranged at the bottom of the bolt 9 to ensure sliding support.

[0050] Based on the above embodiments, the locking component includes a locking nut 14 and a locking washer 15. The locking washer 15 is sleeved on the bolt 9 and fits against the upper end face of the hinge 7. The locking nut 14 is threadedly connected to the bolt 9 and fits against the upper end face of the locking washer 15.

[0051] In other words, the locking washer 15 is fitted onto the bolt 9, and its position is close to the upper end face of the hinge 7 to ensure that there is no slippage or displacement during the locking process, thereby improving the stability and reliability of the locking. At the same time, the locking washer 15 also has a certain degree of elasticity, which can absorb and disperse the stress generated during the locking process to a certain extent, reducing wear or damage caused by stress concentration.

[0052] During installation, the locking nut 14 is tightened to fit against the upper surface of the locking washer 15. Through the close contact and friction between the two, the bolt 9 and the entire connecting assembly are securely locked.

[0053] Based on the above embodiments, the lower end face of the U-shaped guide rail 2 is connected to the load-bearing component 1 by welding or bolt 9; the forward and reverse low-speed motor 4 is connected to the lead screw 3 by a coupling 19.

[0054] In other words, the lower end face of the U-shaped guide rail 2 can be connected to the load-bearing component 1 by welding or bolts 9.

[0055] In the welding connection method, the lower end face of the U-shaped guide rail 2 and the upper surface of the load-bearing component 1 are tightly joined together by welding process. It has the advantages of high connection strength and good stability, which can ensure that the U-shaped guide rail 2 will not loosen or shift during long-term use.

[0056] With the bolt 9 connection method, the lower end face of the U-shaped guide rail 2 is fastened to the upper surface of the load-bearing component 1 by bolt 9 and nut. It has the advantages of easy installation and disassembly, and is convenient for maintenance and repair in subsequent use.

[0057] On the other hand, the forward and reverse low-speed motor 4 serves as the power source for driving the lead screw 3 to rotate. In order to ensure that the motor can drive the lead screw 3 to rotate stably and efficiently, the forward and reverse low-speed motor 4 and the lead screw 3 are connected by a coupling 19.

[0058] Based on the above embodiments, a position sensor 26 is also included. The position sensor 26 is located at the end of the U-shaped guide rail 2 and is used to detect the displacement limit position of the lead screw nut seat 5.

[0059] Specifically, the position sensor 26 can sense the movement position of the lead screw nut seat 5 on the U-shaped guide rail 2. When the lead screw nut seat 5 moves to the preset limit position, the position sensor 26 will immediately send a signal to notify the control system to stop the operation of the forward and reverse low-speed motor 4, thereby preventing the lead screw nut seat 5 from colliding with the end of the U-shaped guide rail 2 due to excessive movement, which could cause damage to the device or a safety accident.

[0060] It should be noted that in this specification, relational terms such as first and second are used only to distinguish one entity from several other entities, and do not necessarily require or imply any such actual relationship or order between these entities.

[0061] This article uses specific examples to illustrate the principles and implementation methods of this utility model. The descriptions of the above embodiments are only for the purpose of helping to understand the method and core ideas of this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made to this utility model without departing from the principles of this utility model, and these improvements and modifications also fall within the protection scope of the claims of this utility model.

Claims

1. A linear transmission device based on a U-shaped guide rail, characterized in that, include: A load-bearing component (1) is provided with a plurality of U-shaped guide rails (2) spaced apart on the upper end surface of the load-bearing component (1), and the opening groove of the U-shaped guide rails (2) is set away from the load-bearing component (1). The lead screw (3) is horizontally positioned within the opening groove of the U-shaped guide rail (2); A forward and reverse low-speed motor (4) is fixed at the end of the load-bearing component (1), and the output end of the forward and reverse low-speed motor (4) is connected to the lead screw (3). Two screw nut seats (5) are provided in the opening slot of each U-shaped guide rail (2). The screw nut seats (5) are sleeved on the screw (3), and the upper end of the screw nut seats (5) is provided with a connecting component. Connecting seat (6) and hinge (7) are connected to the connecting assembly by locking member so that the connecting seat (6) and hinge (7) are fixedly connected to the lead screw nut seat (5). The hinge (7) is used to connect to the photovoltaic bracket support rod.

2. The linear transmission device based on a U-shaped guide rail according to claim 1, characterized in that, Each of the U-shaped guide rails (2) is provided with a lead screw support seat (8) at both ends. The lead screw support seat (8) is used to support the lead screw (3) and is fixedly connected to the load-bearing component (1).

3. A linear transmission device based on a U-shaped guide rail according to claim 2, characterized in that, The connection component includes: Bolt (9), said bolt (9) is disposed at the upper end of the lead screw nut seat (5); The limiting piece (10) is symmetrically arranged on the outer peripheral surface of the bolt (9) and is located directly above the U-shaped guide rail (2); The load bearing (11) is symmetrically arranged at the bottom of the bolt (9), and the load bearing (11) is attached to the lower end face of the opening wing of the U-shaped guide rail (2).

4. A linear transmission device based on a U-shaped guide rail according to claim 3, characterized in that, The upper end face of the connecting seat (6) is a plane, and the lower end face of the connecting seat (6) is provided with a limiting groove (12). The limiting groove (12) is used to accommodate the limiting piece (10). The connecting seat (6) is provided with a through hole (13) for the bolt (9) to pass through. The lower end face of the hinge (7) is a plane, and the lower end face of the hinge (7) is fitted with the upper end face of the connecting seat (6). The hinge (7) is provided with a through hole opposite to the through hole (13). The through hole is for the bolt (9) to pass through.

5. A linear transmission device based on a U-shaped guide rail according to claim 4, characterized in that, The locking component includes a locking nut (14) and a locking washer (15). The locking washer (15) is sleeved on the bolt (9) and fits against the upper end face of the hinge (7). The locking nut (14) is threadedly connected to the bolt (9) and fits against the upper end face of the locking washer (15).

6. A linear transmission device based on a U-shaped guide rail according to claim 1, characterized in that, The lower end face of the U-shaped guide rail (2) is connected to the load-bearing component (1) by welding or bolt (9).

7. A linear transmission device based on a U-shaped guide rail according to claim 1, characterized in that, The forward and reverse low-speed motor (4) is connected to the lead screw (3) via a coupling.

8. A linear transmission device based on a U-shaped guide rail according to claim 1, characterized in that, It also includes a position sensor, which is located at the end of the U-shaped guide rail (2) and is used to detect the displacement limit position of the lead screw nut seat (5).

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