Universal transmission rod for DTU connection

Abstract

The utility model discloses a universal transmission rod for DTU connection, which belongs to the field of photovoltaic power generation and comprises a transmission rod head and a universal rod head, and a transmission square block is rotatably arranged between the transmission rod head and the universal rod head. A connecting ring is arranged outside the transmission square rod in a sliding mode, and a sliding groove matched with the transmission square rod is formed in the connecting ring. According to the universal transmission rod for DTU connection, when a DTU worm on a current row of precast piles is in transmission, through universal transmission between the transmission rod head and the universal rod head, the transmission rod head and the universal rod head can stably carry out transmission on a DTU worm on a rear row of precast piles; through sliding connection between the connecting ring and the transmission square rod, the connecting ring can slide on the transmission square rod, meanwhile, the connecting ring and the transmission square rod can be in a transmission state all the time, and therefore even if the distance between the front-row support precast pile and the rear-row support precast pile has tolerance, the transmission square rod and the connecting ring can also be adjusted through the lengths of the transmission square rod and the connecting ring.

Description

Technical Field

[0001] This utility model belongs to the field of photovoltaic power generation, and specifically relates to a universal transmission rod for DTU connection. Background Technology

[0002] Photovoltaic power generation brackets are special brackets used to support, fix, and adjust photovoltaic modules in a solar photovoltaic power generation system. They are the "skeleton" of photovoltaic modules, fixing them on various application scenarios such as rooftops, ground, and water surfaces, ensuring the stability and safety of the modules under various climatic conditions, and preventing displacement or damage caused by natural factors such as wind, rain, and snow.

[0003] The first phase of the Hanchuan Maiwang Photovoltaic Power Station has a capacity of 30MW, divided into 30 array areas. It adopts Antaike Ping single-axis tracking brackets, which use a drive motor + transmission rod + DTU (turbine transmission device) + arc beam drive structure. The tracking bracket adjustment angle is ±45° in the east-west direction.

[0004] One array has 12 tracking motors. One tracking motor drives 8 DTUs via a transmission rod. One DTU drives one arc beam. One arc beam connects to a row of components (2 strings) via two arc beam connecting plates. In the actual construction environment, because the arc beam transmission rod is a round tube, the connection points at both ends with the DTU worm gear are square tubes extruded from the round tube. The connection parts between the DTU worm gear and the transmission rod are square transmission blocks. During normal operation, the DTU transmission blocks are located inside the square tubes at both ends of the transmission rod, driving the transmission rod to rotate. However, during long-term operation, the DTU transmission blocks will wear the square openings at both ends of the transmission rod into a round shape due to vibration and the torque during operation and stopping, and may even wear through the metal wall of the transmission rod. This causes the DTU transmission blocks to spin freely inside the transmission rod, and the tracking bracket loses power and tracking capability.

[0005] Meanwhile, during infrastructure construction, there was a tolerance in the distance between the precast piles of the front and rear rows of supports. The transmission rod body is a standard 4-meter-long round tube, with square tubes (transmission rod heads) welded to both ends. In the design, the insertion depth of the transmission heads at both ends of the transmission rod and the DTU transmission blocks at both ends met the transmission requirements. However, in actual operation, due to the tolerance between the front and rear rows of precast piles, if the transmission rod is manufactured and installed according to the design length, the length of the transmission rod will not meet the actual needs. Under long-term operational vibration, a section of the transmission rod will gradually detach, losing its connection with the DTU transmission blocks, causing the tracking support to lose power and its tracking function.

[0006] Therefore, a universal joint for DTU connection is proposed to solve the above problems. Utility Model Content

[0007] In view of one or more of the above-mentioned defects or improvement needs of the prior art, this utility model provides a universal transmission rod for DTU connection, which has the advantages of stable transmission connection, non-deformable overall structure, and adaptive transmission pitch tolerance.

[0008] To achieve the above objectives, this utility model provides a universal drive rod for DTU connection, including a drive rod head and a universal rod head. Both the drive rod head and the universal rod head are integrally provided with two positioning plates at their ends, and a gap is formed between the two positioning plates. A drive block is rotatably provided between the drive rod head and the universal rod head.

[0009] The other end of the universal joint head is integrally provided with a transmission square rod, which is arranged in a polygonal structure.

[0010] A connecting ring is slidably provided on the outside of the transmission square rod, and a groove adapted to the transmission square rod is opened in the connecting ring.

[0011] As a further improvement of this utility model, the two positioning clamps on the transmission rod head and the universal rod head are arranged in a cross shape to clamp the transmission block between them. The two positioning clamps on the transmission rod head and the universal rod head are provided with a rotating shaft hole, and a rotating shaft is inserted into the rotating shaft hole.

[0012] As a further improvement of this utility model, the transmission block is provided with several insertion holes that are adapted to the shaft hole.

[0013] As a further improvement of this utility model, a positioning screw hole is also provided at the other end of the transmission rod head; and through holes are provided at both ends of the transmission rod head.

[0014] As a further improvement of this utility model, the end of the connecting ring is provided with a plug hole; the sliding groove is provided through both ends of the connecting ring.

[0015] As a further improvement of this utility model, a keyway rod is fixedly provided at the end of the universal joint head. A plurality of keyways are formed on the outside of the keyway rod. A keyway ring is slidably sleeved on the outside of the keyway rod. A keyway is opened in the keyway ring. The keyway and the keyway rod are fitted together.

[0016] In summary, the beneficial effects of the above-described technical solutions conceived by this utility model compared with the prior art include:

[0017] This utility model discloses a universal drive rod for DTU connection. When the DTU worm gear on the front row of precast piles is in operation, the universal drive between the drive rod head and the universal rod head ensures stable transmission of the DTU worm gear on the rear row of precast piles. Simultaneously, the rotational transmission between the drive rod head and the universal rod head prevents the drive rod head from being worn round or worn through, ensuring the reliability and durability of the transmission system and enabling stable transmission between the front and rear rows of precast piles.

[0018] The universal drive rod for DTU connection of this utility model, due to the universal rotation between the drive rod head and the universal rod head, can adapt to the situation where multiple rows of precast piles are not on a straight line in the actual transmission system, making the transmission smoother. It avoids the problem of increased motor load and overcurrent caused by misalignment of the drive rod components, which helps to extend the service life of the motor, improve the working efficiency of the motor, and reduce energy consumption.

[0019] The universal drive rod for DTU connection of this utility model, through the sliding connection between the connecting ring and the drive square rod, allows the connecting ring to slide on the drive square rod. At the same time, the connecting ring and the drive square rod can always be in a transmission state. In this way, even if there is a tolerance in the distance between the precast piles of the front and rear support, the drive square rod and the connecting ring of this application can always maintain a good connection and transmission state with each component by adjusting their own length. This avoids problems such as jamming, tooth breakage or uneven force caused by inconsistent distances, ensuring the stability and smoothness of power transmission and guaranteeing the stable operation of the equipment. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall installation structure of this utility model;

[0021] Figure 2 This is a schematic diagram of the connection structure between the transmission square rod and the universal joint head of this utility model;

[0022] Figure 3 This is a schematic diagram of the transmission rod head structure of this utility model;

[0023] Figure 4 This is a schematic diagram of the transmission block structure of this utility model;

[0024] Figure 5 This is a schematic diagram of the keyway ring and keyway structure of this utility model.

[0025] In all the accompanying drawings, the same reference numerals denote the same technical features, specifically: 1. Drive rod head; 11. Positioning clamp; 12. Rotary shaft hole; 13. Positioning screw hole; 2. Drive block; 3. Universal rod head; 4. Drive rod; 5. Connecting ring; 51. Slide groove; 52. Insertion hole; 6. Keyway rod; 7. Keyway ring sleeve; 71. Keyway. Detailed Implementation

[0026] 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.

[0027] Example

[0028] Depend on Figure 1-5 Provided is a universal drive rod for DTU connection, including a drive rod head 1 and a universal rod head 3. Both the drive rod head 1 and the universal rod head 3 are integrally provided with two positioning clamps 11 at their ends, and a gap is formed between the two positioning clamps 11. The drive rod head 1 and the universal rod head 3 are rotatably provided with a drive block 2.

[0029] The other end of the universal joint head 3 is integrally provided with a transmission square rod 4, which is arranged in a polygonal structure.

[0030] A connecting ring 5 is slidably provided on the outside of the transmission rod 4, and a groove 51 adapted to the transmission rod 4 is provided inside the connecting ring 5.

[0031] In this embodiment, when the DTU worm gear on the front row of precast piles is in motion, the universal joint between the transmission rod head 1 and the universal joint head 3 enables stable transmission of the DTU worm gear on the rear row of precast piles. Simultaneously, the rotational transmission between the transmission rod head 1 and the universal joint head 3 avoids the problem of the transmission rod head being worn round or worn through, ensuring the reliability and durability of the transmission system and enabling stable transmission between the front and rear rows of precast piles.

[0032] Furthermore, due to the universal rotation between the transmission rod head 1 and the universal rod head 3, in the actual transmission system, the transmission rod structure of this application can adapt to the situation where multiple rows of precast piles are not on a straight line, making the transmission smoother, avoiding the problem of increased motor load and overcurrent caused by misalignment of transmission rods, which helps to extend the service life of the motor, improve the working efficiency of the motor, and reduce energy consumption.

[0033] Furthermore, through the sliding connection between the connecting ring 5 and the transmission rod 4, the connecting ring 5 can slide on the transmission rod 4, while the connecting ring 5 and the transmission rod 4 can always be in a transmission state. In this way, even if there is a tolerance in the distance between the precast piles of the front and rear support, the transmission rod 4 and the connecting ring 5 of this application can always maintain a good connection and transmission state with each component by adjusting their own length. This avoids problems such as jamming, tooth breakage or uneven force caused by inconsistent distances, ensuring the stability and smoothness of power transmission and guaranteeing the stable operation of the equipment.

[0034] Specifically, refer to Figure 1-4 The transmission block 2 is held between two positioning plates 11 on the transmission rod head 1 and the universal rod head 3 in a cross shape. The two positioning plates 11 on the transmission rod head 1 and the universal rod head 3 are provided with shaft holes 12, and a shaft is inserted into the shaft holes 12.

[0035] In this embodiment, by placing the positioning clamp 11 on the transmission rod head 1 and the positioning clamp 11 on the universal rod head 3 in a cross shape, and then placing the transmission block 2 between the transmission rod head 1 and the universal rod head 3, the transmission rod head 1 and the universal rod head 3 can clamp the transmission block 2 between them.

[0036] Specifically, refer to Figure 4 The transmission block 2 has several insertion holes that are compatible with the shaft hole 12.

[0037] In this embodiment, the user uses the cross drive rod head 1 and the universal rod head 3 until the positioning clamp 11 on the drive rod head 1 and the universal rod head 3 clamps the universal rod head 3 between them, and then installs the matching rotating shaft in the rotating shaft hole 12 to realize the rotational connection between the drive rod head 1 and the universal rod head 3.

[0038] Specifically, refer to Figure 3 The other end of the transmission rod head 1 is also provided with a positioning screw hole 13; the transmission rod head 1 is provided with through holes along both ends.

[0039] In this embodiment, the user installs the transmission rod head 1 on the DTU worm gear inside the rear precast pile. At this time, the insertion of the positioning screw hole 13 and the bolt is used to make the transmission rod head 1 stably connected to the DTU worm gear.

[0040] Specifically, refer to Figure 1 The connecting ring 5 has a insertion hole 52 at one end; the sliding groove 51 passes through both ends of the connecting ring 5.

[0041] In this embodiment, the plug hole 52 can be used to connect with the screw, so that the connecting ring 5 can be stably installed on the DTU worm gear.

[0042] Specifically, refer to Figure 5A keyway rod 6 is fixedly provided at the end of the universal joint head 3. Several keyways are formed on the outside of the keyway rod 6. A keyway ring sleeve 7 is slidably sleeved on the outside of the keyway rod 6. A keyway 71 is opened in the keyway ring sleeve 7. The keyway 71 is fitted with the keyway rod 6.

[0043] In this embodiment, in the preferred embodiment, when the tolerance between the front row of precast piles and the rear row of precast piles is too large, the user can replace the connecting ring 5 and the transmission square rod 4 with the keyway rod 6 and the keyway ring sleeve 7. Through the adaptive engagement between the keyway 71 and the keyway rod 6, the keyway rod 6 and the keyway ring sleeve 7 can be more stable during transmission. Even if there is a large tolerance between the front row and the rear row of precast piles, the keyway rod 6 and the keyway ring sleeve 7 of this application can always maintain a good connection and transmission state with each component through their own length adjustment. Compared with the embodiment, Figure 1 The connection method shown, through the replacement of keyway rod 6 and keyway ring sleeve 7, further improves transmission stability, ensures the reliability and durability of the transmission system, and reduces failures and maintenance costs caused by connection problems.

[0044] It should be noted that users can pre-weld the keyway rod 6 onto a set of universal joint heads 3, so that the keyway rod 6 and the keyway ring sleeve 7 can be quickly replaced during use.

[0045] The universal joint drive rod for DTU connection of this utility model:

[0046] Step 1: In use, the user first connects and installs the transmission rod head 1 and the universal rod head 3. During this process, the positioning clamp 11 on the transmission rod head 1 and the positioning clamp 11 on the universal rod head 3 are brought close together in a cross shape. Then, the transmission block 2 is placed between the transmission rod head 1 and the universal rod head 3. Then, the transmission rod head 1 and the universal rod head 3 are crossed until the positioning clamp 11 on the transmission rod head 1 and the universal rod head 3 clamps the universal rod head 3 between them. Then, the matching rotating shaft is installed in the rotating shaft hole 12 to realize the rotational connection between the transmission rod head 1 and the universal rod head 3.

[0047] Step 2: After the transmission rod head 1 and the universal rod head 3 are rotated and connected, the user puts the connecting ring 5 on the outside of the transmission square rod 4 and installs the other end of the connecting ring 5 on the DTU worm gear on the front row of precast piles. By using the connection of the plug hole 52 with the screw, the connecting ring 5 can be stably connected to the DTU worm gear.

[0048] Step 3: After the connecting ring 5 is connected to the DTU worm gear on the front row of precast piles, the transmission rod head 1 is then installed on the DTU worm gear in the rear row of precast piles. At this time, the insertion of the positioning screw hole 13 and the bolt is used to make the transmission rod head 1 stably connected to the DTU worm gear. When the DTU worm gear on the front row of precast piles is in motion, the transmission rod head 1 and the universal rod head 3 can be stably driven. With the sliding fit between the transmission square rod 4 and the connecting ring 5, and the interlocking connection between the connecting ring 5 and the transmission square rod 4, the front and rear rows of precast piles can achieve stable transmission.

[0049] Step 4: Through the sliding connection between the connecting ring 5 and the transmission square rod 4, the connecting ring 5 can slide on the transmission square rod 4. At the same time, the connecting ring 5 and the transmission square rod 4 can always be in the transmission state. In this way, even if there is a tolerance between the precast piles of the front and rear support, the transmission square rod 4 and the connecting ring 5 of this application can always maintain a good connection and transmission state with each component by adjusting their own length. This avoids problems such as jamming, tooth breakage or uneven force caused by inconsistent distances, ensuring the stability and smoothness of power transmission and guaranteeing the stable operation of the equipment.

[0050] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A universal drive rod for a DTU connection, characterized in that ； Including transmission rod head (1) and universal rod head (3), the transmission rod head (1) and universal rod head (3) are integrally provided with two positioning clamping plates (11) at the end, the spacing is formed between the two positioning clamping plates (11), the transmission rod head (1) and universal rod head (3) are rotatably provided with transmission square (2) between them; The universal rod head (3) is integrally provided with transmission square rod (4) at the other end, and the transmission square rod (4) is provided in polygonal structure; The transmission square rod (4) is slidably provided with a connecting ring (5) outside, and the connecting ring (5) is provided with a sliding groove (51) matched with the transmission square rod (4) inside.

2. The universal drive shaft for DTU connection according to claim 1, characterized in that, The two positioning clamping plates (11) on the transmission rod head (1) and universal rod head (3) are cross-shaped and clamp the transmission square (2) therebetween, and the two positioning clamping plates (11) on the transmission rod head (1) and universal rod head (3) are provided with shaft holes (12) therein.

3. The universal drive shaft for DTU connection according to claim 1, characterized in that, A plurality of insertion holes matched with the shaft holes (12) are formed in the transmission square (2).

4. The universal drive shaft for DTU connection according to claim 1, characterized in that, The transmission rod head (1) is further provided with a positioning screw hole (13) at the other end thereof, and a through hole is formed in the transmission rod head (1) along the two ends thereof.

5. The universal drive shaft for DTU connection according to claim 1, characterized in that, The end of the connecting ring (5) is provided with an insertion hole (52), and the sliding groove (51) is formed through the two ends of the connecting ring (5).

6. The universal drive pole for DTU connection according to claim 1, characterized in that, The universal rod head (3) is fixedly provided with a key groove rod (6) at the end, a plurality of key grooves are formed on the outer surface of the key groove rod (6), a key groove ring sleeve (7) is slidably sleeved on the outer surface of the key groove rod (6), a key groove (71) is formed in the key groove ring sleeve (7), and the key groove (71) is matched with the key groove rod (6).

Images