CN118959531A

CN118959531A - A highly adaptable driving device for bracket rotation

Info

Publication number: CN118959531A
Application number: CN202411461641.7A
Authority: CN
Inventors: 兰宝胜
Original assignee: Longyan Zhikang Solar Technology Co ltd
Current assignee: Longyan Zhikang Solar Technology Co ltd
Priority date: 2024-10-18
Filing date: 2024-10-18
Publication date: 2024-11-15
Anticipated expiration: 2044-10-18
Also published as: CN118959531B

Abstract

The invention discloses a high-adaptability driving device for bracket rotation, which comprises: a rotatably disposed carrier; the first pulley component is fixedly arranged close to the bearing piece, and the second pulley component is fixedly arranged far away from the bearing piece; the driving component drives the bearing piece to rotate, and the driving component can realize synchronous control on the bearing piece through the cooperation of the first flexible traction component, the second flexible traction component and the rigid connection component, so that the angle of the photovoltaic bracket can be accurately and stably adjusted. The flexible traction assembly, the rigid connection assembly and the bearing piece are matched, so that the device can adapt to various severe weather environments (such as strong wind and heavy snow), and can still maintain adjustment accuracy under the condition of asymmetric external impact force. When the structure of the single-side driving mode is large, due to uneven force distribution, the assembly is matched, so that the adjusting precision of the photovoltaic panel under external asymmetric force (such as wind impact) is ensured.

Description

High-adaptability driving device for bracket rotation

Technical Field

The invention relates to a high-adaptability driving device for bracket rotation, and belongs to the technical field of photovoltaic brackets.

Background

Through the angle of intelligent adjustment photovoltaic module in order to furthest receive the sun direct light, reducible light loss to show improvement generating efficiency. At present, the angle of photovoltaic module is adjustable to be installed, at first needs to rotate the setting to the support for photovoltaic module angle installation, and rethread corresponding drive arrangement is in order to control the corner of support to adjust photovoltaic module to one side towards sunshine in real time.

Most of the traditional driving devices for angle adjustment of the photovoltaic module adopt worm and gear driving equipment, the driving installation positions are fixed, the installation is inconvenient sometimes caused by special environmental factors, and the driving efficiency is reduced; because the mounted position is generally located in the high place during the trouble, the maintenance has the potential safety hazard and cost of maintenance is high. For this reason, the existing driving device for adjusting the angle of the photovoltaic module is improved as follows: and carrying out bearing part installation on the photovoltaic module installation support, and matching the steel wire rope wound on the bearing part with a driving power source to control the rotation quantity of the bearing part and further control the rotation angle of the photovoltaic module installation support. Because the steel wire rope has a certain elongation, the steel wire rope in the subsequent use process can have the problem of being out of place in the tensioning process when being matched with the bearing piece, which is very troublesome.

Therefore, the design of the high-adaptability driving device for bracket rotation, which can effectively improve the installation convenience and the connection stability of the steel wire rope when the steel wire rope is matched with the bearing piece and can overcome the problem of insufficient matched tensioning caused by the extension of the steel wire rope, is a research aim of the invention.

Disclosure of Invention

Aiming at the defects of the prior art, the invention aims to provide a high-adaptability driving device for bracket rotation so as to solve the problems of the prior art.

In order to achieve the above object, the present invention is realized by the following technical scheme:

a high-adaptability drive for rotation of a stent, comprising:

a rotatably disposed carrier;

the first pulley component is fixedly arranged close to the bearing piece, and the second pulley component is fixedly arranged far away from the bearing piece;

and a drive assembly for driving the carrier to rotate, the drive assembly comprising:

One or more first flexible traction components which are arranged on the bearing piece in a surrounding mode, one or more second flexible traction components which are arranged on the outer side of the second pulley component in a surrounding mode, and the first flexible traction components are arranged on the inner side of the first pulley component in a guiding mode;

the driving machine is connected with one end of the first flexible traction component and one end of the second flexible traction component, and the rigid connection component is connected with the other end of the first flexible traction component and the other end of the second flexible traction component;

And the bearing piece is synchronously driven to adjust the angle clockwise/anticlockwise through the cooperation of the driving machine, the first flexible traction assembly, the second flexible traction assembly and the rigid connection assembly.

As a further improvement, the number of the first flexible traction components and the number of the second flexible traction components are two, the first flexible traction components adopt first steel wire ropes with the diameter range of 8-14mm, and the second flexible traction components adopt second steel wire ropes with the diameter range of 8-14 mm.

As a further improvement, the driving machine comprises a fixedly arranged mounting shell, an externally threaded rod rotatably arranged in the mounting shell and a motor for driving the externally threaded rod to rotate;

The two tie rods penetrate through the mounting shell in parallel, and the internal thread lock discs are vertically arranged on the two tie rods and are in threaded connection with the external threaded rod;

and the motor drives the external threaded rod to rotate forwards/reversely, and the internal threaded lock disc is driven to drive the pull rod to move upwards/downwards.

As a further improvement, corresponding connecting plates are respectively and horizontally arranged between the end parts of the two pull rods, and the first flexible traction component and the second flexible traction component are respectively and symmetrically arranged on two sides of the middle part of the connecting plates through corresponding connecting rod pieces.

As a further improvement, the first pulley assembly and the second pulley assembly each comprise two symmetrically arranged pulleys and a fixing frame for fixing the two pulleys, the first flexible traction assembly penetrates through the space between the two pulleys of the first pulley assembly, and the second flexible traction assembly surrounds the outer sides of the two pulleys of the second pulley assembly.

As a further development, the two pulley shafts of the same group are spaced apart by a distance smaller than the carrier diameter.

As a further improvement, the first flexible traction assembly comprises a first steel wire rope which is attached around the outer side face of the bearing piece, two end parts of the first steel wire rope are bent inwards, the end parts are locked on the rope body of the first steel wire rope through locking ring fixation to form a first connecting ring and a second connecting ring, the first connecting ring is connected with the rigid connecting assembly, and the second connecting ring is connected with the driving machine.

As a further improvement, the second flexible traction assembly comprises a second steel wire rope which is attached around the outer side face of the bearing piece, two end parts of the second steel wire ropes are bent inwards, the end parts are locked on the rope body through locking ring fixing, a third connecting ring and a fourth connecting ring are formed, the third connecting ring is connected with the rigid connecting assembly, and the fourth connecting ring is connected with the driving machine.

As a further improvement, the rigid connection assembly comprises a first connection rod connected with the first steel wire rope and the second steel wire rope, two end parts of the first connection rod are inwards bent to form a first hook body and a second hook body, the first hook body is connected with the first connection ring, and the second hook body is connected with the third connection ring.

The beneficial effects of the invention are as follows:

1) The invention can obviously shorten the length consumption of the first flexible traction component and the second flexible traction component by the cooperation of the driving machine and the rigid connection component, in particular the intervention of the rigid connection component, so as to effectively solve the problem of the extensibility of the first flexible traction component and the second flexible traction component when the first flexible traction component and the second flexible traction component are used on the premise of not influencing the angle driving, thereby ensuring the stability and the reliability of the whole operation and maintenance of the invention.

2) Because the steel wire rope of the driving device can smoothly drive the photovoltaic module mounting bracket to rotate and does not generate fracture risk under severe environment, if the eight-grade wind and snow environment can be resisted, the tensile strength is required to reach 1770Mpa, and the specification is required to be more than 20 mm. When the steel wire rope with the diameter of more than 20mm is adopted to be matched with the bearing piece for fixation, the steel wire rope is not beneficial to installation and is not easy to form stable fixation with the bearing piece due to the excessively high rigidity of the steel wire rope.

Therefore, the invention replaces the traditional large-diameter single-group steel wire rope by adopting the small-diameter double first flexible traction assembly and the second flexible traction assembly, and obviously reduces the rigidity of the single first flexible traction assembly and the second flexible traction assembly while maintaining the same connection strength, thereby improving the flexibility of the single first flexible traction assembly and the second flexible traction assembly and improving the convenience of installation and the connection stability with the bearing piece.

3) Through increasing the quantity of wire ropes, although the problem of insufficient flexibility of single large-diameter wire rope application is solved, in case different wire ropes are obvious in elongation difference due to factors such as construction, uneven stress can be caused. Thus, most of the stress is concentrated on the steel wire rope with smaller elongation, and the risk of breakage of the steel wire rope is caused under severe environments. Therefore, the invention further horizontally installs the connecting plates between the end parts of the two pull rods of the driving machine, and symmetrically installs the first flexible traction component and the second flexible traction component on the two sides of the middle part of the connecting plate through the corresponding connecting rod pieces, so when the elongation rate difference occurs between different steel wires, the invention can carry out the adaptive compensation through the angle deflection of the connecting plates, thereby maintaining the stress of the different steel wires in a reasonable balance state, ensuring that the invention does not generate the problem of steel wire breakage under the severe environment, and greatly improving the practical effect of the invention.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some examples of the present invention and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic perspective view of a highly adaptive driving device for rotating a stand according to the present invention.

Fig. 2 is a schematic view of a partially enlarged structure of a flexible traction assembly of a high-adaptability driving device for bracket rotation according to the present invention.

Fig. 3 is a partially enlarged schematic view of a driving machine of a highly adaptable driving device for rotation of a stand according to the present invention.

Fig. 4 is a partially enlarged schematic view of a pulley assembly of a highly adaptable driving device for rotation of a bracket according to the present invention.

1. A carrier; 2. a first flexible traction assembly; 3. a second flexible traction assembly; 4. a first pulley assembly; 5. a second pulley assembly; 6. a driving machine; 7. a rigid connection assembly; 41. a pulley; 42. a fixing frame; 21. a first wire rope; 22. a first connection ring; 23. a second connecting ring; 31. a second wire rope; 32. a third connecting ring; 33. a fourth connecting ring; 71. a first connecting rod; 72. a first hook body; 73. a second hook body; 61. a mounting shell; 62. an external threaded rod; 63. a motor; 64. a pull rod; 65. an internal thread locking disc; 67. a splice plate; 68. and connecting the rod pieces.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments. All other embodiments, based on the embodiments of the invention, which are apparent to those of ordinary skill in the art without inventive faculty, are intended to be within the scope of the invention. Thus, the following detailed description of the embodiments of the invention, as presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, based on the embodiments of the invention, which are apparent to those of ordinary skill in the art without inventive faculty, are intended to be within the scope of the invention.

In the description of the present invention, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present invention, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.

Because traditional angle adjusting device actuating force is inhomogeneous, traditional unilateral driving mode appears efficiency loss and the condition of precision inadequately easily in the distribution of force, especially when equipment structure is great, when the bad weather of strong wind, big snow, the impact of wind-force to equipment is usually asymmetric, leads to equipment to appear inclining or shake in the adjustment process, influences photovoltaic board regulation precision and receives the effect of sunlight. Therefore, a high-adaptability driving device for bracket rotation is designed to solve the problem.

Referring to fig. 1 to 4, a high adaptability driving apparatus for bracket rotation includes:

a rotatably arranged carrier 1;

a first pulley assembly 4 fixedly arranged close to the bearing piece 1 and a second pulley assembly 5 fixedly arranged far away from the bearing piece 1;

and a driving assembly for driving the carrier 1 to rotate, the driving assembly comprising:

One or more first flexible traction assemblies 2 arranged around the bearing piece 1, one or more second flexible traction assemblies 3 arranged around the outer side of the second pulley assembly 5, and the first flexible traction assemblies 2 are arranged on the inner side of the first pulley assembly 4 in a guiding way;

a driving machine 6 connected with one end of the first flexible traction component 2 and one end of the second flexible traction component 3, and a rigid connection component 7 connected with the other end of the first flexible traction component 2 and the other end of the second flexible traction component 3;

the bearing piece 1 is synchronously driven to adjust the angle clockwise/anticlockwise through the cooperation of the driving machine 6, the two first flexible traction assemblies 2, the second flexible traction assembly 3 and the rigid connection assembly 7.

Wherein, through the restraint of the first pulley assembly 4 to the first flexible traction assembly 2, the fit degree of the first flexible traction assembly 2 and the bearing piece 1 is increased.

By mounting a photovoltaic panel or a photovoltaic bracket such as a heliostat on the carrier 1. The carrier 1 is designed in the shape of a rotatably mounted disk, the edges of which are secured by means of connecting elements to the photovoltaic carrier. The fixing connection modes are diversified, and the fixing connection can be performed through bolts or other accessories, or through other modes such as welding and fixing.

The first pulley assembly 4 is fixed in a position close to the carrier 1 and the second pulley assembly 5 is fixed in a position far from the carrier 1. This ensures control of the operating space and direction of movement of the flexible traction assembly.

At the same time, two symmetrical first flexible traction assemblies 2 are arranged on the bearing piece 1 in a surrounding way and are slidably mounted through a first pulley assembly 4. The second flexible traction assembly 3 is symmetrically and slidably arranged outside the second pulley assembly 5. The two are connected with the driving machine 6 through a rigid connecting component 7 to form a stable driving structure. Wherein the carrier 1 is provided with an arc-shaped groove, which is matched with the first steel wire rope 21.

When it is desired to adjust the angle of the photovoltaic panel, the drive machine 6 is started. The drive machine 6 achieves a clockwise or counterclockwise angular adjustment of the carrier 1 by synchronously controlling the first flexible traction assembly 2 and the second flexible traction assembly 3.

Through the first flexible traction assembly 2 of design two symmetries, the flexible traction assembly 3 of second, ensure that the rotation force of bearing member 1 distributes evenly all the time, can maintain stable running state, avoid slope or shake.

The driving machine 6 is matched with the two first flexible traction assemblies 2, the second flexible traction assembly 3 and the rigid connection assembly 7, so that the angle of the bearing piece 1 can be synchronously adjusted, the photovoltaic panel is ensured to always face the optimal position of the sun, and the power generation efficiency of the photovoltaic panel is improved.

Due to the cooperation of the first flexible traction component 2, the second flexible traction component 3 and the rigid connection component 7 with the bearing piece 1, the device can adapt to various severe weather environments (such as strong wind and heavy snow), and can still maintain the adjustment precision under the condition of asymmetric external impact force.

The traditional unilateral drive is easy to cause force unbalance due to uneven driving force, and the device adopts a symmetrical bilateral driving mode to ensure balanced driving force, effectively prevent inclination and shaking, and improve the precision and efficiency of adjustment. The device can cope with asymmetric external impact such as wind force or snow force in severe weather, so that the photovoltaic panel can still keep running stably under the condition of strong wind or strong snow. Thanks to the synchronous action of the symmetrical first flexible traction assembly 2, the second flexible traction assembly 3 and the rigid connection assembly 7, the angular adjustment precision of the bearing piece 1 is greatly improved, which is beneficial to improving the overall efficiency of the photovoltaic system. The device can adapt to equipment with different sizes and various severe environments, has stronger universality and reliability, and meets the high-precision angle adjustment requirements of the photovoltaic panel under different scenes.

Through the cooperation of the first flexible traction assembly 2, the second flexible traction assembly 3 and the rigid connection assembly 7, the driving machine 6 can realize synchronous control on the bearing piece 1, so that the photovoltaic bracket can be ensured to accurately and stably adjust the angle. Through the design of pulley assembly and flexible traction assembly, can strengthen the stability of whole photovoltaic support under the strong wind weather, reduce the destructive influence of wind-force to equipment.

Wherein, the first pulley assembly 4 and the second pulley assembly 5 are fixedly installed on the positioning member.

The first pulley assembly 4 and the second pulley assembly 5 respectively comprise two symmetrically arranged pulleys 41 and a fixing frame 42 for fixing the two pulleys 41, the first flexible traction assembly 2 is arranged between the two pulleys 41 of the first pulley assembly 4 in a penetrating mode, and the second flexible traction assembly 3 is arranged outside the two pulleys 41 of the second pulley assembly 5 in a surrounding mode.

The positioning piece can be a wall body, a fixing frame, a fixing column and other fixed supporting bodies.

Because, in the conventional single-side driving manner, the force distribution tends to be concentrated on one side, which easily causes uneven stress on the device, especially when the device is large or is impacted by the outside, the single-side driving cannot effectively cope with. By symmetrically arranging the first pulley assembly 4 and the second pulley assembly 5 and encircling or traversing the pulley 41 by the flexible traction assembly, the overall system can be more uniformly stressed during driving, and the situations of inclination and instability are avoided.

The pulley block design can obviously reduce friction and resistance generated by direct contact in the traction process. The pulley 41 may provide a guiding and supporting function for the flexible traction assembly so that traction may be smoothly transferred. This friction reducing and force transfer optimizing design is intended to increase the efficiency of the drive system and reduce energy losses.

The first pulley assembly 4 and the second pulley assembly 5 are fixedly mounted on a positioning member, such as a wall, a fixing frame 42 or a fixing column, etc., which provides a stable foundation for the whole system. The purpose of this is to avoid movements or deformations of the pulley block or the carrier 1 due to external forces or its own weight during the adjustment process, thus ensuring the accuracy and safety of the adjustment process.

The symmetrical pulley block design ensures the stress balance of the two sides of the traction assembly, thereby realizing the stable operation of the system. The pulley block can disperse and homogenize the stress of the bearing piece 1 in any angle adjusting process, so the design is helpful for avoiding the shaking, shaking or tilting and other phenomena of the equipment in the adjusting process.

The symmetrical arrangement of the pulley blocks and the flexible choice of the positioning members enable the design to be suitable for various installation environments, such as being installed on a wall or a fixed column. The adaptability of the system is improved, the system can be used in various scenes, and the requirements of different equipment structures are met.

Because the pulley block provides good guidance, the flexible traction assembly running on the pulley 41 does not deviate from the designed trajectory, which effectively improves the adjustment accuracy. Especially when facing larger-sized photovoltaic devices, precise angular adjustment is critical to improving the overall efficiency of the photovoltaic system.

When the device is used in severe weather such as strong wind, heavy snow and the like, the external impact force is usually asymmetric, and by the design of the symmetrically arranged pulley blocks and the flexible traction assembly, the device can better resist the asymmetric interference, and the stability and the safety of the system are ensured.

To ensure an optimal balance between the distribution of traction, stability of the apparatus, adjustment accuracy and adaptability, the two pulleys 41 of the same group have a smaller interaxial distance than the diameter of the carrier 1.

The ratio of the axial distance of the pulleys 41 of the first pulley assembly 4 to the diameter of the bearing member 1 is 1-2:3, and the second pulley assembly 5 is not particularly limited.

Due to the specific ratio between the pulley 41 inter-axial distance of the first pulley assembly 4 and the diameter of the carrier 1, the distribution of the traction force on the carrier 1 can be optimized. The smaller pulley 41 interaxial spacing (smaller than the diameter of the carrier 1) ensures that the forces exerted by the traction assembly on the carrier 1 during driving are more concentrated and more evenly distributed in the central region of the carrier 1. This helps to avoid the carrier 1 from being distorted, bent or unevenly stressed during adjustment.

If the ratio of the pulley 41 axial spacing to the diameter of the carrier 1 is not adequate, excessive spacing results in traction forces acting on the edges of the carrier 1, increasing the risk of bending or instability thereof.

When the pulley 41 axial spacing is too small, the forces exerted by the traction assembly on the load bearing member 1 are more concentrated in the neutral position. Such force concentration may lead to a lack of sufficient support at the edge portions of the carrier 1, increasing the stress in the middle of the carrier 1, and may lead to a risk of bending, deformation or even damage of the carrier 1.

Too small a spacing of the pulleys 41 may make the carrier 1 susceptible to instability during angular adjustment. The concentrated action of the force can lead to shaking or irregular movement of the equipment during rotation, and especially in severe weather (such as strong wind or heavy snow), the equipment is more easily affected by asymmetric impact, and the adjustment precision of the equipment is reduced. Too narrow an inter-axle distance of the pulleys 41 may cause the angle of the flexible traction assembly between the pulleys 41 to become steeper, increasing friction between the pulleys 41 and the traction assembly. The increase in friction not only reduces the drive efficiency, but also accelerates wear of the pulley 41 and traction assembly, shortening the service life of the apparatus.

When the distance between the pulleys 41 is too small, the movement path of the traction assembly is limited, which results in a smaller angle adjustment range, and the requirement of the device for large-angle rotation cannot be met, so that the light efficiency of the photovoltaic panel is affected.

When the pulley 41 has too large an inter-axial distance, the forces of the traction assembly act on the ends or edges of the carrier 1, resulting in an excessive range of dispersion of the forces. Such a force distribution causes the intermediate portion of the carrier 1 to lack sufficient support, thereby increasing the stress load on the central portion, resulting in uneven stress in the intermediate region during adjustment, and even twisting or deformation.

Too large a pulley 41 spacing lengthens the transmission path of the traction force, increasing the tendency of the carrier 1 to wobble or shake during the force. Such a situation is particularly easy to occur in large-size devices, so that the adjustment process is not smooth enough, which affects the angular accuracy of the photovoltaic panel. The larger pulley 41 spacing means that the traction force is more difficult to control with precise angular changes when applied, as the force is prone to shifting or dispersion during transmission, resulting in less precise angular adjustment. This situation can negatively impact the efficiency of the photovoltaic panel in capturing sunlight.

Too large an axial spacing of the pulleys 41 requires more space for installation and operation, which can lead to increased overall equipment size, increased complexity and cost of installation and maintenance, and can be inconvenient, particularly in situations where space is limited or equipment is compactly installed.

By designing the pulley 41 interaxes spacing to be smaller than the diameter of the carrier 1 and in the ratio range of 1-2:3, it is ensured that the forces exerted by the traction assembly on the carrier 1 are not concentrated on a certain side or edge, but are evenly distributed over the whole carrier 1. Thus, unbalanced moment in the rotating process can be avoided, shaking and tilting are reduced, and the robustness of the equipment is ensured.

Ensuring that the pulley block and the carrier 1 form a reasonable lever structure, the traction force is smoothly transmitted to the carrier 1 through the pulley 41 system, so that the angle adjustment is finer and smoother. For angle adjustment of the photovoltaic panel, the accuracy can remarkably improve the solar energy capturing efficiency of the photovoltaic system, so that the overall power generation efficiency is improved.

So that the system can adapt to photovoltaic brackets with different sizes. Whether large photovoltaic panels or small heliostats, the optimal performance of the drive under different conditions can be ensured by adjusting the ratio of the pulley 41 interaxial distance to the diameter of the carrier 1. The method provides guarantee for universality and customizability of the device in different application scenes.

In order to ensure uniform transmission of force and improve stability and safety of the system in the flexible traction process, and simultaneously ensure reliability and high efficiency of the traction device. The first flexible traction assembly 2 comprises a first steel wire rope 21 which is attached around the outer side surface of the bearing piece 1, two end parts of the first steel wire rope 21 are bent inwards, the end parts are locked on the rope body of the first steel wire rope through locking ring fixation to form a first connecting ring 22 and a second connecting ring 23, the first connecting ring 22 is connected with the rigid connecting assembly 7, and the second connecting ring 23 is connected with the driving machine 6.

The locking ring can be a metal ring, a sleeve and other conventional locking structures and is mainly used for fixing and binding the end part of the bent steel wire rope on the steel wire rope.

The second flexible traction assembly 3 comprises a second steel wire rope 31 attached around the outer side surface of the bearing piece 1, two ends of the second steel wire ropes 31 are bent inwards, the ends are locked on the rope body through locking ring fixing, a third connecting ring 32 and a fourth connecting ring 33 are formed, the third connecting ring 32 is connected with the rigid connecting assembly 7, and the fourth connecting ring 33 is connected with the driving machine 6.

The first and second flexible traction components 3 are all wrapped around the outer side surface of the bearing piece 1by adopting steel wire ropes, and the main purpose is to ensure the tight fitting between the steel wire ropes and the bearing piece 1, so as to form a stable traction structure. By means of the encircling design, the traction forces of the wire rope can act uniformly on the outer surface of the carrier 1, not just concentrated at a certain point, avoiding damages or deformations caused by local overstresses.

By bending and locking the two ends of the wire rope to form the connecting rings (the first, second, third and fourth connecting rings 33), the fixing of the two ends of the wire rope can be ensured to be more reliable. The annular structure formed on the rope body is bent and locked, so that the joint is firmer, and loosening or falling of the steel wire rope caused by uneven stress or long-term use in operation is avoided. The strength and the reliability of the joint are enhanced.

By connecting the first 22 and third 32 connecting rings with the rigid connection assembly 7, it is ensured that the flexible traction assembly can be effectively fixed with the rigid structural part of the system. While the second and fourth connecting rings 23, 33 are connected to the drive machine 6, ensuring that the traction force can be accurately transferred to the wire rope via the drive machine 6, whereby control of the carrier 1 is achieved. The purpose of such a design is to effectively combine the flexible and rigid portions, both preserving the flexibility of the system and enhancing the structural stability.

The design of the steel cord around the carrier 1 ensures that the traction forces are evenly distributed over the surface of the carrier 1. Such evenly distributed forces avoid local stress concentrations and reduce the likelihood of deformation or damage to the carrier 1 due to uneven stress. In particular in large-size devices, a uniform traction force ensures a stable and precise adjustment of the angle of the device.

The end part of the steel wire rope is in a connecting ring structure formed by bending and locking ring locking, so that higher connecting strength and stability are provided. Through the reinforcement of fixed point, wire rope is difficult for taking place not hard up or slippage when the operation, especially when the system is long-time to be operated or bear great external force (such as wind, snow), can keep traction system's stability and security.

Because the steel wire rope has the characteristics of high strength and wear resistance, the durability of the steel wire rope is enhanced by a locking ring fixing mode, and the failure of the steel wire rope caused by fatigue or wear can be reduced. In addition, the locking of wire rope on the rope body can avoid the tip fracture, reduces the maintenance cost, improves the security and the long-term reliability of system.

The first 22 and third 32 connecting rings are connected to the rigid connection assembly 7, while the second 23 and fourth 33 connecting rings are connected to the drive machine 6, ensuring an efficient transmission between the flexible traction part and the rigid structure. This design allows flexibility in the system during adjustment and ensures accurate delivery of traction forces. The flexible steel wire rope reduces vibration or impact caused by the rigid structure in the traction process, and the rigid connection part ensures the stability and precision of adjustment.

By encircling the flexible wire rope around the outside of the carrier 1 and by bending and locking the formed connection ring, the design achieves a uniform transmission of forces, an improved system stability and durability. The high-efficiency transmission design between the flexible traction assembly and the rigid connection assembly 7 and the driving machine 6 ensures the accurate adjustment of the equipment in operation, and simultaneously improves the safety and the long-term use reliability of the equipment. The advantages of the flexible part and the rigid part are well balanced, and the method is suitable for application scenes such as a photovoltaic angle adjusting system which needs high precision and high stability.

Since smaller diameter wire ropes are more flexible than larger diameter wire ropes, fine adjustments of the apparatus can be accommodated more easily. Especially in photovoltaic board angle governing system, smaller wire rope can realize faster response speed and higher precision, makes equipment can react to the change of sun position more rapidly, improves whole photovoltaic system's energy capture efficiency.

The existing single steel wire design has the diameter of at least up to 20mm, the diameter of at least up to 22mm after plastic coating is completed, and the single steel wire design can resist 8-level wind and snow environments, and in the scheme, the diameter interval of the first steel wire rope 21 and the second steel wire rope 31 is 8-14mm. In this embodiment, the diameters of the first steel wire rope 21 and the second steel wire rope 31 are 10mm and 12mm respectively after the plastic coating is completed. The tensile strength is 1770Mpa, and the composite material can resist eight-grade wind snow environment.

The selection of smaller diameter steel cords (e.g., 8-14 mm) can reduce the amount of material used, thereby reducing production and maintenance costs. Although the diameter of the steel cords is reduced, they still provide sufficient tensile strength (1770 MPa) and are resistant to an eight-level snowy environment, which means that these smaller diameter steel cords have reached practical requirements in strength.

The use of thinner wire ropes can significantly reduce the overall weight of the system and reduce structural loads. This is particularly important for large photovoltaic systems, because lighter components mean that the overall system can use lighter brackets and infrastructure without sacrificing stability and safety, reducing the need for structural materials and installation costs.

While the friction in the pulley 41 system is less, making the traction system more efficient. Meanwhile, the diameter of the coated plastic is between 10 and 16mm, and the plastic coating layer can effectively reduce direct contact between the steel wire rope and other metal parts, reduce friction and abrasion and prolong the service life of the steel wire rope and the pulley 41.

The diameter (10-16 mm) of the steel wire rope after plastic coating not only provides a physical protective layer to prevent the steel wire rope from being corroded and aged when exposed in a severe environment, but also can increase the wear resistance of the steel wire rope. This is critical to the durability of the photovoltaic system for long term outdoor use, as it can reduce the performance degradation and failure risk of the steel cords due to environmental factors.

The first and second wire ropes 31 have a diameter in the interval 8-14mm (10-16 mm after plastic coating) and a tensile strength of 1770Mpa, which combination ensures that the tensile properties of the wire ropes are not sacrificed while the diameter is reduced. Therefore, the equipment can still work normally under severe environments such as snow and the like, and equipment failure caused by breakage or failure of the steel wire rope can be avoided.

The wire rope with the diameter of 10mm (12 mm after plastic coating) has a moderate size, so that the material and weight are reduced, and the sufficient strength and the wind and snow resistance are ensured. The method can reduce cost and improve convenience of construction and installation while meeting the strength and environmental adaptability. The steel wire rope has greater flexibility and can be used for photovoltaic systems or similar devices of various sizes and types. The smaller diameter and high strength design also make it suitable for modern equipment with light design, which is beneficial to wide market application and equipment improvement and upgrading.

The steel wire rope with smaller diameter (8-14 mm, 10-16mm after plastic coating) is selected, so that the high tensile strength (1770 Mpa) and the eight-grade wind and snow resistance are ensured, and the weight, the cost and the durability of the system are optimized. By the mode, the design realizes the light weight, high response speed, high durability and stronger environmental adaptability of the equipment on the premise of not sacrificing the performance and the stability of the system. The data show that the safety, economy and high efficiency are balanced, and the method is suitable for various application scenes and actual operation conditions.

In the scheme, the adopted steel wire rope is formed by winding a plurality of thin steel wires. The steel wire rope is usually formed by winding a plurality of strands (usually 6 strands or 8 strands) around a core, and each strand of steel wire rope contains a plurality of fine steel wires.

The following 6x19 strands: 6 strands, each consisting of 19 filaments, 6x37 strands: 6 strands, each consisting of 37 filaments. If higher flexibility and greater load capacity are desired, 8 strands of steel cord are also used.

In the embodiment, the 6x37 thin steel wire is selected to be wound, and the structure can provide higher tensile strength and ensure the flexibility of the steel wire rope, so that the structure is suitable for a photovoltaic system needing frequent angle adjustment. The design of more strands can effectively disperse load, reduce stress concentration of single steel wire, provide better wear resistance and fatigue resistance simultaneously, and can realize the tensile strength of 1770MPa and the wind and snow resistance.

In addition, steel wire ropes are typically made of high strength carbon steel materials. The high-strength carbon steel has excellent tensile resistance and fatigue resistance, can be kept stable under the condition of larger stress, and has certain toughness, so that brittle failure is avoided.

In order to further enhance the weather resistance and corrosion resistance of the steel wire rope, galvanized steel wire ropes were used in this example. The galvanized layer can effectively resist moisture, rain and snow and corrosive substances in the environment, and the service life of the steel wire rope is prolonged. In applications where the photovoltaic system is exposed to outdoor environments for a long period of time, the galvanization treatment can effectively avoid the performance degradation of the steel wire rope caused by corrosion.

The coating material on the outer layer of the steel wire rope can not only enhance the corrosion resistance of the steel wire rope, but also reduce friction and abrasion and prolong the service life. The coating material can be Polyethylene (PE): the polyethylene coating has excellent chemical corrosion resistance and wear resistance, and simultaneously has good flexibility, and can be well adapted to bending and movement of the steel wire rope.

Polyvinyl chloride (PVC): the polyvinyl chloride coating has good waterproof and chemical corrosion resistance, has smooth surface and effectively reduces friction. PVC coatings are relatively hard and provide additional mechanical protection.

Polyurethane (PU): the characteristics are as follows: the polyurethane coating has good elasticity, excellent wear resistance and tear resistance, and can provide excellent weather resistance. Compared with PE and PVC, the PU coating is softer and comfortable in hand feeling.

Nylon (PA): the characteristics are as follows: the nylon coating has extremely high wear resistance and toughness, can bear high impact load, has excellent self-lubricating property, and reduces friction in operation.

In this example, a polyvinyl chloride (PVC) coating is used as the coating. Due to its excellent chemical resistance, low coefficient of friction and moderate cost, the method is suitable for the use of a general outdoor photovoltaic system. The PE coating is flexible, can adapt to bending and moving of the steel wire rope, keeps stable performance in a low-temperature environment, and is an economic and efficient choice.

The rigid connection assembly 7 comprises a first connection rod 71 connected with the first steel wire rope and the second steel wire rope 31, two end parts of the first connection rod 71 are bent inwards to form a first hook body 72 and a second hook body 73, the first hook body 72 is connected with the first connection ring 22, and the second hook body 73 is connected with the third connection ring 32.

The distance between the ends of the first hook body 72 and the second hook body 73 and the main body is smaller than 1-1.5 mm of the diameter of the first steel wire rope 21 and the diameter of the second steel wire rope 31.

The distance between the end part of the hook body and the main body is controlled within the range of 1-1.5 mm smaller than the diameter of the steel wire rope, so that the hook body can be ensured to firmly grasp the steel wire rope, and the steel wire rope is prevented from slipping or loosening in the running process.

Through reducing the interval of coupler body tip and main part, ensure that wire rope is firmly fixed under the pulling force effect, reduced the degree of freedom of wire rope in tie point department, and then improved the whole atress stability of system.

The smaller interval can effectively limit the movement range of the steel wire rope in the hook body, reduce the relative movement of the steel wire rope in the hook body, further reduce the abrasion and fatigue caused by friction and relative displacement, and improve the service life of the connecting part.

The distance between the end part of the hook body and the main body is slightly smaller than the diameter of the steel wire rope, so that the steel wire rope can be firmly locked in the hook body under any tension, and potential safety hazards caused by loosening or slipping are avoided. In this way, the overall connection strength is improved, and the connection portion can remain stable, especially when subjected to vibrations, impacts or sudden loads.

Under severe weather such as snow, the corrosion resistance of stainless steel is very excellent, and especially in a wet and cold environment, the salt fog corrosion resistance of the stainless steel can ensure long-term use. Stainless steel does not become brittle in low temperature environments, which makes it very suitable for use in cold climates, such as northern snowy environments. The 316 stainless steel has stronger corrosion resistance and is suitable for severe marine environments or occasions exposed outdoors for a long time. High strength, corrosion resistance, suitability for long-time exposure to wind and snow and wet and cold environments, and long service life. The cost is relatively high, but is still a cost-effective option in view of its long service life and low maintenance costs.

Galvanized carbon steel, carbon steel itself has high strength and strong resistance to deformation under load, and is well suited for structural joining components.

By the hot galvanizing treatment, a corrosion-resistant galvanized layer is formed on the surface of the carbon steel, so that the first connecting rod 71 can be effectively prevented from being oxidized and corroded in humid and snowy environments. The galvanized carbon steel can still maintain the strength under the low-temperature condition, and is suitable for being used in the environment with low temperature and more wind and snow. The cost is relatively low, the strength is high, and the anticorrosion performance is good after the galvanization treatment. Corrosion resistance is somewhat inferior to that of stainless steel, and long-term exposure to extreme conditions requires periodic maintenance or replacement.

Aluminum alloy, which is light in weight, but has relatively high strength after alloying treatment, is suitable for systems requiring lightweight design. The aluminum alloy has good corrosion resistance, and is particularly suitable for occasions exposed outdoors. The weather resistance of the aluminum alloy in the wind and snow environment is good, and oxidation and corrosion can be effectively resisted. 6061-T6 aluminum alloy is a high-strength and corrosion-resistant aluminum alloy and is widely applied to the fields of buildings and structures. Light weight, corrosion resistance, suitability for occasions needing frequent adjustment or movement, and long-term use in a snowy environment. The strength is higher than that of steel, but it is slightly inferior to steel under extremely high load.

The glass fiber reinforced composite material has extremely strong corrosion resistance, and can resist various erosion factors in acid-base and wind-snow environments. The glass fiber composite is very light in weight, but strong enough to bear high mechanical load and not easy to deform. FRP materials can maintain stable performance in extreme environments without becoming brittle or corroded by cold or humidity. The corrosion resistance and the weather resistance are extremely high, is suitable for severe outdoor environment, and has light weight and no maintenance. The cost is relatively high, and under extremely high mechanical loads, the strength is inferior to that of the metal material.

To realize forward and reverse rotation of the motor 63 to realize lifting of the pull rod 64, the driving machine 6 comprises a mounting shell 61, an external threaded rod 62 rotatably mounted inside the mounting shell 61, and a motor 63 for driving the external threaded rod 62 to rotate;

two tie rods 64 penetrating through the mounting shell 61 in parallel, and internal thread lock discs 65 vertically mounted on the two tie rods 64, wherein the internal thread lock discs 65 are in threaded connection with the external threaded rod 62;

The motor 63 is matched with the external threaded rod 62 in a forward/reverse rotation way, so that the internal threaded lock disk 65 is driven to drive the pull rod 64 to move up/down.

The male screw rod 62 is screwed by the female screw lock plate 65, so that the female screw lock plate 65 will move up and down in the screw direction when the motor 63 drives the male screw rod 62 to rotate. The lifting of the female screw lock disk 65 can be controlled by the forward or reverse rotation of the motor 63, thereby driving the pull rod 64 to move up or down.

The forward or reverse rotation of the motor 63 can be achieved by a precise control system, which can provide smooth and precise movement. By the screw structure, the rotational movement of the motor 63 is converted into a linear movement, so that the height of the pull rod 64 can be conveniently adjusted.

The mounting case 61 protects the internal male screw rod 62 and the motor 63 from the external environment, and particularly, ensures long-term reliable operation of the internal mechanical structure in the case of outdoor or severe working environments such as dust, moisture, snow, and the like. The mounting shell 61 also provides a stable structural foundation to ensure smooth movement of the pull rod 64 and threaded rod and to avoid interference of external factors with internal movement mechanisms.

By means of two parallel tie rods 64 penetrating the mounting shell 61, stability and synchronicity of the tie rods 64 during lifting can be ensured. This design helps to avoid the imbalance problem associated with a single pull rod 64, and ensures that the system remains stable during lifting and deflection is avoided. The internal thread lock disk 65 is vertically installed on the pull rod 64, and through the cooperation of the lock disk and the threaded rod, the rotation force of the motor 63 can be effectively transmitted to the pull rod 64, so that the accurate control of the pull rod 64 is realized.

By driving the rotation of the male screw rod 62 by the motor 63, the system can achieve accurate control of the position of the pull rod 64. The mechanical drive of the threaded connection is highly accurate and repeatable, and is suitable for situations where accurate position adjustment is required, ensuring that the draw bar 64 stays stably at the required height. The advantage of the screw drive is its high torque transmission efficiency, which enables a greater load lifting even with a smaller motor 63 power.

By driving the motor 63, the automatic operation of lifting and lowering the pull rod 64 is realized, and by adjusting the rotation direction of the motor 63, the lifting and lowering of the pull rod 64 can be easily realized.

The thread drive system has a natural self-locking function, in particular in the case of a smaller pitch of the threaded rod. When the motor 63 stops, the screw structure can be self-locked, preventing the pull rod 64 from sliding or falling without external force. The self-locking function improves the safety of the system and avoids safety accidents caused by power failure or faults.

Because the mechanical transmission with the matched internal and external threads is adopted, the system can bear larger load and is not easy to deform. The threaded connection performs well in terms of load and stability, which makes the design suitable for applications where long-term load carrying of weights is required, ensuring stable lifting operations under load. The parallel through-mounting of the tie rods 64 to the mounting shell 61 further increases the stability of the overall system and avoids wobble or deflection of the tie rods 64 during lifting.

It is emphasized that the connection portions of the mounting case 61 are provided with sealing members, so that the threaded rod and the motor 63 inside can be effectively protected from the external environment such as dust, moisture, rainwater, wind and snow, etc. Thus, the service life of the system can be greatly prolonged, and faults or maintenance requirements caused by external environment are reduced.

The driving machine 6 further comprises two connecting plates 67 symmetrically installed at the end parts of the pull rods 64, two connecting rod pieces 68 symmetrically arranged on the connecting plates 67, the first connecting ring 22 is connected with the connecting plates 67 through the connecting rod pieces 68, and specifically, the connecting rod pieces 68 penetrate through the first connecting ring 22 and then bend to form a fixing part;

The third connecting ring 32 is connected to the connecting plate 67 through the connecting rod 68, specifically, the connecting rod 68 penetrates through the third connecting ring 32 and then bends to form a fixing portion.

The end of the connecting rod 68/pull rod 64 facing the connecting plate 67 is provided with external threads, and the connecting rod 68 and the end of the pull rod 64 are fixed by bolts.

Specifically, the length of the engagement plate 67 is five equal, and the engagement rod 68 and the pull rod 64 are respectively disposed on the second/third line on the bisector from the central region toward the two sides.

By dividing the connector plate 67 five equal in length and mounting the connector bar 68 and the tie bar 64 on the second and third lines, respectively, a symmetrical arrangement is achieved which results in a more uniform system in terms of load carrying. The evenly distributed force can effectively avoid eccentric load or stress concentration, and the stability of the whole structure is improved.

And the link members 68 and the tie rods 64 are arranged on the bisecting line close to the center, so that the load is transmitted to the central area of the link plates 67, the stress of the whole structure is balanced, the excessive stress concentration of the edge part is reduced, and fatigue or local deformation is avoided.

In order to prevent falling off and enhance fixation, the design of bending the ends of the engagement members 68 into a fixation hook can provide additional physical restraint to the system, preventing the engagement members 68 from sliding out of the connection ring, improving the security of the connection. The design not only increases the stability of the structure, but also enhances the shock resistance and the impact resistance, and avoids the loosening problem caused by vibration or external force.

The bent design also makes the engagement bar 68 easier to install and secure, simplifies the installation steps during assembly, and ensures the tightness and reliability of installation by the self-locking nature of the mechanical structure.

And external threads are arranged at the end parts of the connecting rod piece 68 and the pull rod 64, and the connecting rod piece 68 and the pull rod 64 can be accurately adjusted and forcefully fixed through limiting and fixing by bolts. The thread structure can ensure the tight fit between the connecting components and avoid loosening caused by external force or vibration.

The threaded connection is excellent in tensile and shearing resistance, and particularly for a structure needing to bear large tensile force or shearing force, the strength of a connecting point can be further enhanced through limiting and fixing of the bolts, and slipping or breakage under the condition of high stress is prevented.

It is emphasized that no fewer than 2 bolts are provided at each link.

In order to ensure that the motor 63 can still reliably operate in a low-temperature and cold environment, the following types of motors 63 are generally selected, so that not only can basic driving requirements be met, but also cold-resistant capability and stability are provided:

For example, a three-phase asynchronous motor special for a low-temperature environment is designed, and the motor can be made of materials and lubricating oil special for the low temperature, so that the motor can normally operate in a cold environment. The three-phase asynchronous motor has strong load adaptability and stability, can keep stable work for a long time under severe conditions such as wind and snow, and is suitable for a system requiring high power and continuous work. Although the heat dissipation problem of the motor is relatively less serious than that of the motor in a high-temperature environment, the good heat dissipation design of the three-phase asynchronous motor can still ensure that the motor can normally operate under extreme conditions.

The brushless direct current motor has high efficiency, better energy consumption performance in cold environment, and can work for a long time without excessive energy loss. Because no electric brush exists, the BLDC motor can avoid performance degradation caused by component abrasion in a low-temperature environment, and meanwhile, the maintenance requirement is reduced, so that the BLDC motor is particularly suitable for a driving system of outdoor equipment in a cold region. The brushless DC motor can still keep better starting performance at low temperature, and the starting difficulty caused by too low temperature can be avoided. BLDC motors are suitable for use in precisely controlled scenarios such as automation equipment, robotics, and wind power generation equipment in cold regions.

The efficiency of the PMSM motor is higher than that of the asynchronous motor, particularly the motor adopting rare earth permanent magnet materials, so that stable magnetic performance can be kept in an extremely cold environment, and the work of the motor cannot be influenced due to temperature change. Because the rare earth permanent magnet material can still keep stronger magnetism in a low-temperature environment, the motor can still maintain higher power output and high-efficiency operation in low temperature. Some PMSM motors may use special bearing lubrication and low temperature materials.

In the embodiment, the motor adopts a permanent magnet synchronous motor, has stable magnetic performance, is suitable for precise control occasions, and can still keep high-efficiency operation in a low-temperature environment. Not only has good cold resistance, but also ensures the reliability and stability of the system under severe weather conditions.

It should be noted that, the device structure and the drawings of the present invention mainly describe the principle of the present invention, in terms of the technology of the design principle, the arrangement of the power mechanism, the power supply system, the control system, etc. of the device is not completely described, and on the premise that the person skilled in the art understands the principle of the present invention, the specific details of the power mechanism, the power supply system and the control system can be clearly known, the control mode of the application file is automatically controlled by the controller, and the control circuit of the controller can be realized by simple programming of the person skilled in the art;

the standard parts used in the method can be purchased from the market, and can be customized according to the description of the specification and the drawings, the specific connection modes of the parts are conventional means such as mature bolts, rivets and welding in the prior art, the machines, the parts and the equipment are conventional models in the prior art, and the structures and the principles of the parts are all known by the skilled person through technical manuals or through conventional experimental methods.

The above description is only of the preferred embodiments of the present invention and is not intended to limit the present invention, and various modifications and variations may be made to the present invention by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A high-adaptability driving device for bracket rotation, comprising:

A rotatably mounted carrier (1);

the first pulley assembly (4) is fixedly arranged close to the bearing piece (1), and the second pulley assembly (5) is fixedly arranged far away from the bearing piece (1);

and a drive assembly for driving the rotation of the carrier (1), the drive assembly comprising:

one or more first flexible traction components (2) which are arranged on the bearing piece (1) in a surrounding mode, one or more second flexible traction components (3) which are arranged on the outer side of the second pulley component (5) in a surrounding mode, and the first flexible traction components (2) are arranged on the inner side of the first pulley component (4) in a guiding mode;

A driving machine (6) connected with one end of the first flexible traction component (2) and one end of the second flexible traction component (3), and a rigid connection component (7) connected with the other end of the first flexible traction component (2) and the other end of the second flexible traction component (3);

The bearing piece (1) is synchronously driven to adjust the angle clockwise/anticlockwise through the cooperation of the driving machine (6), the first flexible traction assembly (2), the second flexible traction assembly (3) and the rigid connection assembly (7).

2. A highly adaptable driving device for stent rotation as defined in claim 1 wherein: the number of the first flexible traction components (2) and the number of the second flexible traction components (3) are two, the first flexible traction components (2) adopt first steel wire ropes (21) with the diameter range of 8-14mm, and the second flexible traction components (3) adopt second steel wire ropes (31) with the diameter range of 8-14 mm.

3. A highly adaptable driving device for stent rotation as defined in claim 2 wherein: the driving machine (6) comprises a mounting shell (61) fixedly arranged, an external threaded rod (62) rotatably arranged in the mounting shell (61), and a motor (63) for driving the external threaded rod (62) to rotate;

The two tie rods (64) penetrate through the mounting shell (61) in parallel, and the internal thread locking discs (65) are vertically arranged on the two tie rods (64), and the internal thread locking discs (65) are in threaded connection with the external threaded rod (62);

The motor (63) drives the external threaded rod (62) to rotate forwards/reversely, and the internal threaded lock disc (65) is driven to drive the pull rod (64) to move upwards/downwards.

4. A highly adaptable driving device for stent rotation as defined in claim 3 wherein: corresponding connecting plates (67) are respectively and horizontally arranged between the end parts of the two pull rods (64), and the first flexible traction assembly (2) and the second flexible traction assembly (3) are respectively and symmetrically arranged on two sides of the middle part of the connecting plates (67) through corresponding connecting rod pieces (68).

5. A highly adaptable driving device for stent rotation as defined in claim 1 wherein: the first pulley assembly (4) and the second pulley assembly (5) comprise two pulleys (41) which are symmetrically arranged and a fixing frame (42) for fixing the two pulleys (41), the first flexible traction assembly (2) penetrates through the two pulleys (41) arranged on the first pulley assembly (4), and the second flexible traction assembly (3) surrounds the two pulleys (41) outside of the second pulley assembly (5).

6. The high-adaptability driving apparatus for bracket rotation according to claim 5, wherein: the axial distance between the two pulleys (41) in the same group is smaller than the diameter of the bearing piece (1).

7. A highly adaptable driving device for stent rotation as defined in claim 1 wherein: the first flexible traction assembly (2) comprises a first steel wire rope (21) which is attached to the outer side face of the bearing piece (1), two end portions of the first steel wire rope (21) are bent inwards, the end portions of the first steel wire rope are locked on a rope body of the bearing piece through locking ring fixing, a first connecting ring (22) and a second connecting ring (23) are formed, the first connecting ring (22) is connected with the rigid connecting assembly (7), and the second connecting ring (23) is connected with the driving machine (6).

8. The high-adaptability driving apparatus for bracket rotation according to claim 7, wherein: the second flexible traction assembly (3) comprises a second steel wire rope (31) which is attached around the outer side face of the bearing piece (1), two ends of the second steel wire rope (31) are bent inwards, the ends of the second steel wire rope are fixedly locked on the rope body of the bearing piece through locking rings to form a third connecting ring (32) and a fourth connecting ring (33), the third connecting ring (32) is connected with the rigid connecting assembly (7), and the fourth connecting ring (33) is connected with the driving machine (6).

9. The high-adaptability driving apparatus for bracket rotation according to claim 4, wherein: the rigid connection assembly (7) comprises a first connection rod (71) connected with the first steel wire rope and the second steel wire rope (31), two end parts of the first connection rod (71) are inwards bent to form a first hook body (72) and a second hook body (73), the first hook body (72) is connected with the first connection ring (22), and the second hook body (73) is connected with the third connection ring (32).