Concentrating type solar direct driving device for tracking sun

Abstract

The utility model discloses a concentrating solar sun-tracking direct driving device, which comprises a heat collecting assembly, a solar energy collecting assembly, a solar energy collecting assembly, a solar energy collecting assembly and a solar energy collecting assembly, the driving assembly comprises a motor, a small star-shaped speed reducer, a main speed reducer, an absolute value angle sensor and a shaft connector, the motor is fixed to the side edge of the upper end of the supporting frame, the small star-shaped speed reducer is fixed to the output end of the motor, and an input shaft of the main speed reducer is fixed to the output end of the small star-shaped speed reducer; the absolute value angle sensor is fixed on an output shaft on the other side edge of the main speed reducer; and the shaft connector is inserted into an output groove of the main speed reducer. The problems that an existing driving device is complex in structure and large in driving resistance, the tightness of a steel wire rope is difficult to adjust, only an imported electric push rod with an angle sensor can be purchased in order to guarantee driving force and tracking precision, cost is high, the purchasing period is long, and after-sales service is difficult to guarantee are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of mechanical drive of a small trough type solar tracking system, in particular to a concentrating solar energy tracking sun direct drive device. Background Art

[0002] A trough solar collector is a device that uses a reflector to focus sunlight onto a single line, then converts the heat from that line into electricity or heat. It typically consists of a long reflector that reflects sunlight onto the absorber, which then converts the sunlight into heat. This device is primarily used for power generation and heating, offering advantages such as high efficiency and low cost.

[0003] The current drive technology uses an electric actuator to drive a linear iron plate, which in turn is fixed with a wire rope to drive a slotted solar rotating shaft. As the linear iron plate moves back and forth, it drives the wire rope, which is fixed at both ends to the iron plate and wrapped around the solar collector's rotating shaft, causing the solar collector to rotate and track the sun. Problems with the current system include: 1. Complex structure and high driving resistance; 2. The tension of the wire rope is difficult to adjust. A looser wire rope cannot achieve high-precision tracking, while a tighter wire rope, due to its structure, presses the collector body tightly against the rotating shaft bracket, resulting in high driving resistance and difficulty in driving; 3. To ensure driving force and tracking accuracy, only imported electric actuators with angle sensors are required, which are costly, require a long procurement cycle, and have difficulty in ensuring after-sales service. Therefore, a direct drive device for concentrated solar tracking is needed to address these issues. Utility Model Content

[0004] The purpose of the present utility model is to provide a concentrated solar energy direct drive device for tracking the sun, so as to solve the problems raised in the above background technology, that is, the existing drive device has a complex structure, large driving resistance, and the tightness of the wire rope is difficult to adjust. A loose drive cannot achieve high-precision tracking, and a tight drive presses the collector body tightly against the rotating shaft bracket due to structural reasons, resulting in large driving resistance and difficulty in driving. In order to ensure driving force and tracking accuracy, only imported electric push rods with angle sensors can be purchased, which have high costs, long procurement cycles, and difficult to guarantee after-sales service.

[0005] In order to solve the above technical problems, the present invention is achieved through the following technical solutions:

[0006] The utility model is a concentrated solar energy tracking sun direct drive device, comprising:

[0007] A heat collecting assembly, comprising a support frame and a bearing seat, wherein the bearing seat is fixed to the upper end of the support frame;

[0008] The drive assembly includes a motor, a small star-shaped reducer, a main reducer, an absolute angle sensor and a shaft connector. The motor is fixed to the upper side of the support frame, the small star-shaped reducer is fixed to the output end of the motor, the input shaft of the main reducer is fixed to the output end of the small star-shaped reducer, the absolute angle sensor is fixed to the output shaft on the other side of the main reducer, and the shaft connector is plugged into the output slot of the main reducer.

[0009] Furthermore, the drive assembly also includes a support tube, a support plate and a support seat, one end of the support tube is welded to the upper end of the side of the support frame, the support plate is fixed to the upper end of the support tube, the lower end of the main reducer is fixed to the support plate, the support seat is fixed to one side of the upper end of the support plate, and the upper end of the support seat is fixed under the motor.

[0010] Furthermore, the heat collection assembly also includes a rotating shaft and a heat collection tank. The rotating shaft is inserted into the middle of the bearing seat, and the heat collection tank is fixed on the rotating shaft.

[0011] Furthermore, it also includes a convenient component, which includes a protective cover, a square through hole, a baffle, a first limit plate, a second limit plate and a sealing ring. The protective cover is hinged on the side of the support plate, the square through holes are opened at both ends of the protective cover, the baffle is inserted into the square through holes, the first limit plate is fixed at one end of the baffle, the second limit plate is fixed at the other end of the baffle, and the sealing ring is fixed on the side of the second limit plate and is sleeved on the baffle.

[0012] Furthermore, the convenient component also includes a fixed plate, a second circular through hole, a T-shaped movable block and a spring. The upper end of the fixed plate is fixed to the middle of the lower end of the support tube, the second circular through hole is opened in the middle of the fixed plate, one end of the T-shaped movable block is inserted into the second circular through hole, and the spring is sleeved on the other end of the T-shaped movable block, with one end fixed on the T-shaped movable block and the other end fixed to the side of the fixed plate.

[0013] Furthermore, the convenient component also includes a first circular through hole, which is opened in the middle of the lower end of the baffle, and the T-shaped movable block is inserted into the first circular through hole.

[0014] Compared with the prior art, the advantages of the present invention are:

[0015] 1. The utility model adopts a direct drive mode of a small DC motor through the setting of the driving component, and adopts a two-stage reducer mode of a small star reducer and a main reducer for deceleration. The absolute angle sensor is directly connected to the input shaft of the main reducer to measure the angle, which is easy to ensure the tracking accuracy, and is connected to the rotating shaft in the heat collection component through a shaft connector. This setting is modified by the common reducer on the market, which has low cost, convenient processing, short delivery time, and low driving power. On the basis of reducing product cost, it greatly reduces the complexity of the system, reduces driving energy consumption, realizes the reduction of component cost, is easy to install and maintain, ensures the stability of the system, and enhances the competitiveness of the product.

[0016] 2. Based on the first beneficial effect, the present invention has a simpler structure than the original drive device and is easy to process. Each part of the original system needs to be customized and processed, the system is complex, and the processing time is long. The newly designed system adopts standard parts for assembly, and only the matching connectors need to be processed. The processing time is short, the ordering time is short, and there is no need for customized processing inventory. Parts can be ordered according to the order of goods, which greatly improves production efficiency. Since the new system is simple to assemble, it can be assembled in a customized processing factory, and it is not necessary to assemble it in a production factory like the original system, which saves manpower. Manpower can be maximized in the production of other components, greatly improving production efficiency.

[0017] 3. The utility model is to add a protective cover to the drive component through the convenient components. During installation or maintenance, one hand pulls the T-shaped movable block, the spring stretches, the T-shaped movable block moves along the second circular through hole, and one end moves out of the first circular through hole. The other hand pushes the first limit plate along the square through hole, drives the baffle to move, drives the second limit plate and the sealing ring to move, so that the first limit plate fits the side of the protective cover, and the protective cover is rotated 90 degrees to open. With this arrangement, the protective cover can be used to place installation and maintenance tools after it is opened, which can improve the efficiency of installation and maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. 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 creative work.

[0019] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0020] Figure 2 This is a schematic diagram of the drive assembly structure of the utility model;

[0021] Figure 3 This is a schematic diagram of the protective cover of the present invention when it is closed;

[0022] Figure 4 This is a structural schematic diagram of the fixed plate and T-shaped movable block of the utility model.

[0023] In the accompanying drawings, the components represented by the reference numerals are as follows:

[0024] 10. Support frame; 11. Bearing seat; 12. Rotating shaft; 13. Heat collecting tank; 20. Support tube; 21. Support plate; 22. Support seat; 23. Motor; 24. Small star reducer; 25. Main reducer; 26. Absolute angle sensor; 27. Shaft connector; 30. Protective cover; 31. Square through hole; 32. Baffle; 33. First limit plate; 34. Second limit plate; 35. Sealing ring; 36. First circular through hole; 37. Fixed plate; 370. Second circular through hole; 38. T-shaped movable block; 39. Spring. DETAILED DESCRIPTION

[0025] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0026] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0027] In order to make the purpose, technical solutions and advantages of the present invention more clear, the embodiments of the present invention will be described in further detail below with reference to the accompanying drawings.

[0028] See also Figure 1-2 As shown, this embodiment is a concentrated solar energy tracking sun direct drive device, comprising:

[0029] The heat collecting assembly includes a support frame 10 and a bearing seat 11, and the bearing seat 11 is fixed to the upper end of the support frame 10;

[0030] The heat collecting assembly further includes a rotating shaft 12 and a heat collecting tank 13. The rotating shaft 12 is plugged into the middle of the bearing seat 11, and the heat collecting tank 13 is fixed on the rotating shaft 12.

[0031] The support frame 10 plays a supporting role, and the bearing seat 11 facilitates the rotation of the rotating shaft 12. The rotating shaft 12 is used to rotate the heat collecting tank 13. The heat collecting tank 13 is equipped with a reflector and an absorber to convert the collected energy into electrical energy or thermal energy.

[0032] The drive assembly includes a motor 23, a small star reducer 24, a main reducer 25, an absolute angle sensor 26 and a shaft connector 27. The motor 23 is fixed to the upper side of the support frame 10, the small star reducer 24 is fixed to the output end of the motor 23, the input shaft of the main reducer 25 is fixed to the output end of the small star reducer 24, the absolute angle sensor 26 is fixed to the output shaft on the other side of the main reducer 25, and the shaft connector 27 is plugged into the output slot of the main reducer 25;

[0033] The drive assembly also includes a support tube 20, a support plate 21 and a support base 22. One end of the support tube 20 is welded to the upper end of the side of the support frame 10, the support plate 21 is fixed to the upper end of the support tube 20, the lower end of the main reducer 25 is fixed to the support plate 21, the support base 22 is fixed to one side of the upper end of the support plate 21, and the upper end of the support base 22 is fixed below the motor 23;

[0034] Support tube 20, support plate 21, and support base 22 provide support. Motor 23 is a small DC motor that provides rotational power. A small star-shaped reducer 24, with a reduction ratio of 3000:5, reduces the speed of DC motor 23 from 3000 rpm to 5 rpm. This deceleration increases the output torque of small motor 23 and reduces its speed. A main reducer 25, with a reduction ratio of 80:1, provides the primary driving torque, with a maximum torque of 800 Nm. An absolute angle sensor 26 provides high-precision angle values ​​to the automatic control system. Because the angle sensor's control accuracy is within 0.5 degrees, and the 80:1 reduction ratio of main reducer 25 allows for system control accuracy of 0.5 degrees / 80 = 0.00625 degrees. This provides highly accurate angle values, facilitating high-precision sun tracking control. A shaft connector 27 connects to the rotating shaft 12.

[0035] Working principle:

[0036] Fix the support tube 20 on the support frame 10, install the support plate 21 and the support seat 22, as well as other components such as the motor 23. First, when the heat collecting tank 13 is in a horizontal position at an angle of 0 degrees, the rotating shaft 12 is fixed to the shaft connector 27, and the 0-degree angle value is written into the absolute angle sensor 26 through the automatic tracking control system. The automatic tracking control system gives the motor 23 a forward or reverse signal according to the angle value required to track the sun calculated by the computer. The rotation of the motor 23 drives the small star reducer 24 to rotate, and then drives the main reducer 25 to rotate to the angle position fed back by the absolute angle sensor 26, completing high-precision angle tracking.

[0037] In this step, the common reducers on the market are used for modification, which has low cost, easy processing, short delivery time and low driving power. On the basis of reducing product cost, it greatly reduces the complexity of the system, reduces driving energy consumption, realizes the reduction of component cost, is easy to install and maintain, ensures the stability of the system, and enhances the competitiveness of the product.

[0038] See also Figure 3-4 This embodiment is based on the above embodiment and further includes:

[0039] Convenient assembly, the convenient assembly includes a protective cover 30, a square through-hole 31, a baffle 32, a first limiting plate 33, a second limiting plate 34 and a sealing ring 35. The protective cover 30 is hinged to the side of the support plate 21. The square through-holes 31 are opened at both ends of the protective cover 30. The baffle 32 is inserted into the square through-holes 31. The first limiting plate 33 is fixed to one end of the baffle 32, and the second limiting plate 34 is fixed to the other end of the baffle 32. The sealing ring 35 is fixed to the side of the second limiting plate 34 and is sleeved on the baffle 32;

[0040] The convenient assembly also includes a fixed plate 37, a second round through hole 370, a T-shaped movable block 38 and a spring 39. The upper end of the fixed plate 37 is fixed to the middle of the lower end of the support tube 20. The second round through hole 370 is provided in the middle of the fixed plate 37. One end of the T-shaped movable block 38 is inserted into the second round through hole 370. The spring 39 is sleeved on the other end of the T-shaped movable block 38, with one end fixed to the T-shaped movable block 38 and the other end fixed to the side of the fixed plate 37.

[0041] The convenient component further includes a first round through hole 36, which is provided in the middle of the lower end of the baffle 32, and a T-shaped movable block 38 is inserted into the first round through hole 36;

[0042] The protective cover 30 plays a protective and supporting role, the square through hole 31 facilitates the movement of the baffle 32, the first limit plate 33 and the second limit plate 34 play a limiting role, the sealing ring 35 plays a sealing role, the first circular through hole 36 plays a connecting role, the fixed plate 37 plays a supporting role, the second circular through hole 370 facilitates the movement of the T-shaped movable block 38, the T-shaped movable block 38 plays a limiting role, and the spring 39 has an extrusion function.

[0043] Working principle:

[0044] When installing or repairing the protective cover 30 for the drive assembly, pull the T-shaped movable block 38 with one hand, the spring 39 stretches, the T-shaped movable block 38 moves along the second circular through hole 370, and one end moves out of the first circular through hole 36. Use the other hand to push the first limit plate 33 along the square through hole 31, drive the baffle 32 to move, drive the second limit plate 34 and the sealing ring 35 to move, so that the first limit plate 33 fits the side of the protective cover 30, and then turn the protective cover 30 ninety degrees to open it.

[0045] In this step, the protective cover 30 can be opened to place installation and maintenance tools, thereby improving installation and maintenance efficiency.

[0046] It should also be noted that, in the description of this utility model, unless otherwise expressly specified or limited, the terms "disposed," "installed," "connected," and "connected" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integral connections; they may refer to mechanical connections or electrical connections; they may refer to direct connections or indirect connections through an intermediate medium; and they may refer to internal communication between two components. Those skilled in the art will be able to understand the specific meanings of the above terms in this utility model based on specific circumstances.

[0047] Finally, it should be noted that the above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art will be able to modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein with equivalents. Any modifications, equivalent replacements, and improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. Concentrating solar energy tracking sun direct drive device, characterized in that: include: A heat collecting assembly, comprising a support frame (10) and a bearing seat (11), wherein the bearing seat (11) is fixed to the upper end of the support frame (10); A drive assembly comprises a motor (23), a small star-shaped reducer (24), a main reducer (25), an absolute angle sensor (26) and a shaft connector (27); the motor (23) is fixed to the upper side of the support frame (10); the small star-shaped reducer (24) is fixed to the output end of the motor (23); the input shaft of the main reducer (25) is fixed to the output end of the small star-shaped reducer (24); the absolute angle sensor (26) is fixed to the output shaft on the other side of the main reducer (25); and the shaft connector (27) is plugged into the output slot of the main reducer (25).

2. The concentrated solar energy tracking sun direct drive device according to claim 1, characterized in that: The driving assembly further comprises a support tube (20), a support plate (21) and a support seat (22); one end of the support tube (20) is welded to the upper end of the side of the support frame (10); the support plate (21) is fixed to the upper end of the support tube (20); the lower end of the main reducer (25) is fixed to the support plate (21); the support seat (22) is fixed to one side of the upper end of the support plate (21); and the upper end of the support seat (22) is fixed below the motor (23).

3. The concentrated solar energy tracking sun direct drive device according to claim 1, characterized in that: The heat collection assembly further comprises a rotating shaft (12) and a heat collection tank (13); the rotating shaft (12) is plugged into the middle of the bearing seat (11); and the heat collection tank (13) is fixed on the rotating shaft (12).

4. The concentrated solar energy tracking sun direct drive device according to claim 2, characterized in that: The utility model also includes a convenient component, which includes a protective cover (30), a square through hole (31), a baffle (32), a first limiting plate (33), a second limiting plate (34) and a sealing ring (35). The protective cover (30) is hinged on the side of the support plate (21), the square through hole (31) is opened at both ends of the protective cover (30), the baffle (32) is inserted into the square through hole (31), the first limiting plate (33) is fixed on one end of the baffle (32), the second limiting plate (34) is fixed on the other end of the baffle (32), and the sealing ring (35) is fixed on the side of the second limiting plate (34) and is sleeved on the baffle (32).

5. The concentrated solar energy tracking direct drive device according to claim 4, characterized in that: The convenient assembly further comprises a fixed plate (37), a second round through hole (370), a T-shaped movable block (38) and a spring (39), wherein the upper end of the fixed plate (37) is fixed to the middle of the lower end of the support tube (20), the second round through hole (370) is opened in the middle of the fixed plate (37), one end of the T-shaped movable block (38) is inserted into the second round through hole (370), and the spring (39) is sleeved on the other end of the T-shaped movable block (38), with one end fixed on the T-shaped movable block (38) and the other end fixed to the side of the fixed plate (37).

6. The concentrated solar energy tracking direct drive device according to claim 4, characterized in that: The convenient component further comprises a first circular through hole (36), which is provided in the middle of the lower end of the baffle (32), and a T-shaped movable block (38) is inserted into the first circular through hole (36).

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