Method and device for determining maximum blade rotation angle, and blade synchronization adjustment mechanism

Abstract

The present invention provides a method and device for determining the maximum blade rotation angle, and a blade synchronous adjustment mechanism. The blade synchronous adjustment mechanism comprises: a synchronous transmission ring that rotates about a center of a circle; and multiple blade transmission mechanisms disposed on the synchronous transmission ring. The blade transmission mechanisms comprise: a transmission arm, a detent pin located on the transmission arm, and a blade structure comprising radial swirl blades and a blade transmission shaft, slidably connected to the detent pin. The present invention simplifies the structural design of the radial swirl blade synchronous rotation mechanism, reduces the difficulty of installing the radial swirl blade synchronous rotation mechanism, ensures synchronous rotation of the radial swirl blades, and achieves precise adjustment of the radial swirl blade angle. The present invention can be applied to remotely controlled automatic adjustment systems.

Description

Technical Field

[0001] The present invention relates to the technical field of swirl blades, and in particular to a method and device for determining a maximum rotation angle of a blade, and a blade synchronization adjustment mechanism. Background Art

[0002] Figure 1 This is a schematic diagram of the radial swirl blade structure of a typical swirl burner; Figure 2 This is an embodiment of the present invention Figure 1 Schematic diagram of the AA direction; Figure 3 This is an embodiment of the present invention Figure 1 Schematic diagram of the BB direction. Figure 1-Figure 3 As shown, the swirl burner is a combustion device widely used in industrial boilers. The radial swirl blade structure of a typical swirl burner includes a primary air duct 1, a fire-viewing hole 2, a central separator 3, an axial swirl blade 4, an inner secondary air duct 5, a circumferential blade 6 and an outer secondary air duct 7. Among them, the angle of the radial swirl blade is used to control the amount of air circulating, and it is also used to adjust the size of the tangential component of the inlet wind speed. The above two together determine the size of the swirl intensity of the burner nozzle flow field. The swirl intensity of the burner nozzle flow field is an important indicator affecting the performance of the swirl burner. It determines the burner nozzle's ability to entrain high-temperature flue gas in the furnace, and is of great significance for maintaining stable, continuous and efficient combustion. Therefore, at the installation or commissioning site, it is necessary to check and measure the angle of the radial swirl blade and fix it at the appropriate swirl intensity position to ensure that the actual performance of the burner is optimized.

[0003] Figure 4 Schematic diagram of the radial swirl blade synchronous adjustment mechanism in prior art 1. Figure 4 As shown, the prior art uses a mechanism consisting of a vane 9 and a connecting rod 10 to achieve synchronous transmission of radial swirl blades. Each swirl blade is welded to the vane 9, and adjacent vanes are hinged to the connecting rod 10 in a forward and reverse rotational pattern. The connecting rod 10 can rotate around an axis on the vane 9. This technology has a complex transmission structure and high design and installation requirements. The angle indication of the radial swirl blades is not intuitive, and it is difficult to directly determine the position of the swirl blades from the position of the vanes. In addition, the angle deviation of the swirl blades in different positions is large, making it unsuitable for use in automatic adjustment systems.

[0004] In the prior art 2, each radial swirl blade corresponds to a set of drive components, resulting in an excessive number of drive components for equipment with a large number of radial swirl blades. The angle of the radial swirl blade is determined by an angle sensor, and there is no direct synchronization adjustment mechanism.

[0005] The separator baffles of the prior art 3 are divided into several groups, one group of separator baffles corresponds to one electric control system, and one separator baffle corresponds to one baffle adjustment mechanism, which cannot ensure that all separator baffles are adjusted synchronously. Summary of the Invention

[0006] The main purpose of the embodiments of the present invention is to provide a method and device for determining the maximum rotation angle of the blades, and a blade synchronous adjustment mechanism, which simplifies the structural design of the radial swirl blade synchronous rotation mechanism, reduces the installation difficulty of the radial swirl blade synchronous rotation mechanism, ensures the rotation synchronization of the radial swirl blades, and realizes the precise adjustment of the radial swirl blade angle, which can be applied to a remotely controlled automatic adjustment system.

[0007] To achieve the above objectives, an embodiment of the present invention provides a method for determining the maximum rotation angle of a radial swirl blade, comprising:

[0008] Determine the distance between the shift pin and the center of the synchronous transmission ring and the length of the shift fork;

[0009] The maximum rotation angle of the radial swirl blade is determined according to the distance between the shift pin and the center of the synchronous transmission ring, the length of the shift fork and the rotation angle parameters.

[0010] An embodiment of the present invention further provides a device for determining the maximum rotation angle of a radial swirl blade, comprising:

[0011] A distance and length determination module is used to determine the distance between the shift pin and the center of the synchronous transmission ring and the length of the shift fork;

[0012] The maximum rotation angle determination module is used to determine the maximum rotation angle of the radial swirl blade according to the distance between the detent pin and the center of the synchronous transmission ring, the length of the shift fork and the rotation angle parameters.

[0013] The method and device for determining the maximum rotation angle of the radial swirl blades in the embodiment of the present invention determine the maximum rotation angle of the radial swirl blades based on the distance between the shift pin and the center of the synchronous transmission ring, the shift fork length and the rotation angle parameters, which can ensure the synchronous rotation of the radial swirl blades and realize precise adjustment of the angle of the radial swirl blades. It can be applied to a remotely controlled automatic adjustment system.

[0014] An embodiment of the present invention further provides a blade synchronization adjustment mechanism, comprising:

[0015] A synchronous transmission ring that rotates around the center of the circle;

[0016] A plurality of blade transmission mechanisms are provided on the synchronous transmission ring; the blade transmission mechanism includes:

[0017] A transmission arm, a detent pin located on the transmission arm, and a blade structure comprising radial swirl blades and a blade transmission shaft slidably connected to the detent pin;

[0018] The maximum rotation angle of the radial swirl blade is determined according to the method for determining the maximum rotation angle of the radial swirl blade as described above.

[0019] The blade synchronous adjustment mechanism of the embodiment of the present invention includes a synchronous transmission ring rotating around the center of a circle and a plurality of blade transmission mechanisms arranged on the synchronous transmission ring. The blade transmission mechanism includes a transmission arm, a pin located on the transmission arm, and a blade structure including a radial swirl blade and a blade transmission shaft slidably connected to the pin. This simplifies the structural design of the radial swirl blade synchronous rotation mechanism, reduces the installation difficulty of the radial swirl blade synchronous rotation mechanism, and ensures the synchronous rotation of the radial swirl blades. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, 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 paying any creative work.

[0021] Figure 1 This is a schematic diagram of the radial swirl blade structure of a typical swirl burner;

[0022] Figure 2 This is an embodiment of the present invention Figure 1 Schematic diagram of the AA direction;

[0023] Figure 3 This is an embodiment of the present invention Figure 1 Schematic diagram of the BB direction;

[0024] Figure 4 Schematic diagram of the synchronous adjustment mechanism of radial swirl blades in prior art 1;

[0025] Figure 5 is a flow chart of a method for determining the maximum rotation angle of radial swirl blades in an embodiment of the present invention;

[0026] Figure 6 is a schematic diagram of parameters required for determining the number of radial swirl blades in an embodiment of the present invention;

[0027] Figure 7 is a flow chart for determining the number of radial swirl blades in an embodiment of the present invention;

[0028] Figure 8 is a structural block diagram of a device for determining the maximum rotation angle of radial swirl blades in an embodiment of the present invention;

[0029] Figure 9 This is a front view of the blade synchronization adjustment mechanism in an embodiment of the present invention;

[0030] Figure 10 is a side view of a blade synchronization adjustment mechanism according to an embodiment of the present invention;

[0031] Figure 11 This is a welding diagram of the radial swirl blades and the shift fork in an embodiment of the present invention;

[0032] Figure 12 1 is a structural diagram of a shift fork in an embodiment of the present invention;

[0033] Figure 13 This is an embodiment of the present invention Figure 12 Schematic diagram of the AA direction. DETAILED DESCRIPTION

[0034] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0035] Those skilled in the art will appreciate that the embodiments of the present invention may be implemented as a system, apparatus, device, method, or computer program product. Therefore, the present disclosure may be implemented in the following forms: entirely in hardware, entirely in software (including firmware, resident software, microcode, etc.), or in a combination of hardware and software.

[0036] In view of the complex structure of the existing technology and the high requirements for design and installation, there is no direct synchronization adjustment mechanism and it cannot be applied to the automatic adjustment system. The embodiments of the present invention provide a method and device for determining the maximum rotation angle of the blades and a blade synchronization adjustment mechanism, which ensure the synchronization of the rotation of the radial swirl blades while having a simple structure.

[0037] Figure 5 4 is a flow chart of a method for determining the maximum rotation angle of radial swirl blades in an embodiment of the present invention. Figure 6 FIG. 1 is a schematic diagram of the parameters required to determine the number of radial swirl blades in an embodiment of the present invention. Figure 5-Figure 6 As shown, the method for determining the maximum rotation angle of the radial swirl blade includes:

[0038] S101: Determine the distance between the shift pin and the center of the synchronous transmission ring and the length of the shift fork.

[0039] When the synchronous transmission ring is in the initial position, the transmission arm and the shift fork are in a straight line, and the position relationship is as follows: Figure 6 As shown by the ABC line. Figure 9 When the synchronous transmission ring 11 and the transmission arm 12 rotate clockwise, when the synchronous transmission ring rotates counterclockwise, the detent pin 13 moves along the detent pin guide rail 17 to the outermost end of the guide rail, and the rotation angle of the shift fork 16 also reaches the maximum value Δα. maxThe maximum rotation angle of the radial swirl blade 14 is also Δα max , at this time the shift fork position is Figure 6 As shown by the straight line AD, the length of the sum of the radius of the transmission arm 12 and the synchronous transmission ring 11 is Figure 6 The length of the CD line in the figure. The angle between the AB line and the AD line is Δα max , the length of AD is the length of the fork (the length from the inner end face of the fork to the blade transmission axis) b, the straight line length of CD is the distance a between the shift pin and the center of the synchronous transmission ring, and the straight line length of AC is r2+b.

[0040] S102: Determine the maximum rotation angle of the radial swirl blade according to the distance between the shift pin and the center of the synchronous transmission ring, the shift fork length, and the rotation angle parameters.

[0041] In specific implementation, the maximum rotation angle of the radial swirl blade can be determined by the following formula:

[0042]

[0043] Among them, Δα max is the maximum rotation angle of the radial swirl blade, a is the distance between the pin and the center of the synchronous transmission ring, b is the length of the fork, and β is the rotation angle parameter. The maximum rotation angle of the radial swirl blade can also be taken as (0, Δα max ] other angles within the range.

[0044] In one embodiment, the method for determining the maximum rotation angle of the radial swirl blade further includes:

[0045] Determine the driving wheel diameter, transmission arm width, synchronous transmission ring outer diameter and the number of radial swirl blades; determine the rotation angle parameter according to the driving wheel diameter, transmission arm width, synchronous transmission ring outer diameter and the number of radial swirl blades.

[0046] In specific implementation, the rotation angle parameter can be determined by the following formula:

[0047]

[0048] Where d is the diameter of the driving wheel, Δb is the width of the transmission arm, r1 is the outer diameter of the synchronous transmission ring, and n is the number of radial swirl blades.

[0049] In summary, Figure 5 The execution body of the method for determining the maximum rotation angle of the radial swirl blade shown can be a computer. Figure 5As can be seen from the process shown, the method for determining the maximum rotation angle of the radial swirl blades in the embodiment of the present invention determines the maximum rotation angle of the radial swirl blades based on the distance between the shift pin and the center of the synchronous transmission ring, the shift fork length and the rotation angle parameters, which can ensure the synchronous rotation of the radial swirl blades and realize precise adjustment of the angle of the radial swirl blades. It can be applied to a remotely controlled automatic adjustment system.

[0050] Figure 7 FIG. 1 is a flow chart for determining the number of radial swirl blades in an embodiment of the present invention. Figure 6-Figure 7 As shown, determining the number of radial swirl blades includes:

[0051] S201: Determine the distance between the end of the shift fork close to the synchronous transmission ring and the center of the synchronous transmission ring as the circumferential radius of the inner end surface of the blade.

[0052] like Figure 6 As shown, the distance between the end of the shift fork close to the synchronous transmission ring and the center of the synchronous transmission ring is r2.

[0053] S202: Determine the distance between the blade transmission shaft and the center of the synchronous transmission ring as the radius of the circle where the blade transmission shaft is located.

[0054] like Figure 6 As shown, the distance between the blade transmission shaft and the center of the synchronous transmission ring is R.

[0055] S203: Determine the number of radial swirl blades according to the circumferential radius of the inner end surface of the blade and the circumferential radius of the blade transmission shaft.

[0056] In one embodiment, S203 includes: determining a range of the number of radial swirl blades according to a circumferential radius of a blade inner end surface and a circumferential radius of a blade transmission shaft; and determining the number of radial swirl blades according to the range of the number of radial swirl blades.

[0057] In specific implementation, the number of radial swirl blades can be determined by the following formula:

[0058]

[0059] Among them, r2 is the circumferential radius of the inner end surface of the blade, R is the circumferential radius of the blade transmission shaft, and n is the number of radial swirl blades.

[0060] In one embodiment, the number of radial swirl blades may also be other integers within the range of n±n / 4.

[0061] In summary, the method for determining the maximum rotation angle of the radial swirl blade in an embodiment of the present invention determines the maximum rotation angle of the radial swirl blade based on the distance between the shift pin and the center of the synchronous transmission ring, the shift fork length and the rotation angle parameters, which can ensure the synchronous rotation of the radial swirl blade and realize precise adjustment of the angle of the radial swirl blade, and can be applied to a remotely controlled automatic adjustment system.

[0062] Based on the same inventive concept, an embodiment of the present invention also provides a device for determining the maximum rotation angle of radial swirl blades. Since the principle of solving the problem by the device is similar to the method for determining the maximum rotation angle of radial swirl blades, the implementation of the device can refer to the implementation of the method, and the repeated parts will not be repeated.

[0063] Figure 8 FIG. 1 is a block diagram of a device for determining the maximum rotation angle of radial swirl blades according to an embodiment of the present invention. Figure 8 As shown, the device for determining the maximum rotation angle of the radial swirl blade includes:

[0064] A distance and length determination module is used to determine the distance between the shift pin and the center of the synchronous transmission ring and the length of the shift fork;

[0065] The maximum rotation angle determination module determines the maximum rotation angle of the radial swirl blade according to the distance between the detent pin and the center of the synchronous transmission ring, the length of the shift fork and the rotation angle parameters.

[0066] In one embodiment, it further includes:

[0067] a data determination module for determining the driving wheel diameter, the transmission arm width, the outer diameter of the synchronous transmission ring, and the number of radial swirl blades;

[0068] The rotation angle parameter determination module is used to determine the rotation angle parameter according to the driving wheel diameter, the transmission arm width, the outer diameter of the synchronous transmission ring and the number of radial swirl blades.

[0069] In one embodiment, it further includes:

[0070] The blade inner end surface circle radius determination module is used to determine the distance between the end of the shift fork close to the synchronous transmission ring and the center of the synchronous transmission ring as the circle radius of the blade inner end surface;

[0071] The blade transmission shaft circumferential radius determination module is used to determine the distance between the blade transmission shaft and the center of the synchronous transmission ring as the circumferential radius of the blade transmission shaft;

[0072] The radial swirl blade number determination module is used to determine the number of radial swirl blades according to the circumferential radius of the inner end surface of the blade and the circumferential radius of the blade transmission shaft.

[0073] In one embodiment, the radial swirl blade number determination module includes:

[0074] A radial swirl blade number range unit is used to determine the radial swirl blade number range based on the circumferential radius of the blade inner end surface and the circumferential radius of the blade transmission shaft;

[0075] The radial swirl blade quantity determination unit is used to determine the number of radial swirl blades according to the radial swirl blade quantity range.

[0076] In summary, the device for determining the maximum rotation angle of the radial swirl blades in the embodiment of the present invention determines the maximum rotation angle of the radial swirl blades based on the distance between the shift pin and the center of the synchronous transmission ring, the shift fork length and the rotation angle parameters, which can ensure the synchronous rotation of the radial swirl blades and realize precise adjustment of the angle of the radial swirl blades, and can be applied to a remotely controlled automatic adjustment system.

[0077] Based on the same inventive concept, an embodiment of the present invention further provides a blade synchronization adjustment mechanism. Figure 9 It is a front view of the blade synchronization adjustment mechanism in an embodiment of the present invention. Figure 10 It is a side view of the blade synchronization adjustment mechanism in an embodiment of the present invention.

[0078] like Figure 9-10 As shown, the blade synchronization adjustment mechanism includes:

[0079] A synchronous transmission ring 11 that rotates around the center of the circle;

[0080] A plurality of blade transmission mechanisms are provided on the synchronous transmission ring 1, and the blade transmission mechanisms include:

[0081] A transmission arm 12 , a detent pin 13 located on the transmission arm 12 , and a blade structure comprising radial swirl blades 14 and a blade transmission shaft 15 , which is slidably connected to the detent pin 13 .

[0082] In one embodiment, a plurality of transmission arms 12 are evenly distributed on the synchronous transmission ring 11 , and a detent pin 13 is welded to each transmission arm. The detent pins 13 are at the same distance from the center of the synchronous transmission ring 11 .

[0083] The maximum rotation angle of the radial swirl blade is determined according to the method for determining the maximum rotation angle of the radial swirl blade as described above.

[0084] In one embodiment, the blade synchronization adjustment mechanism further includes: a driving wheel 18 engaged with the synchronous transmission ring 11, for driving the synchronous transmission ring 11 to rotate around the center of the circle. The driving wheel 18 drives the synchronous transmission ring 11 to rotate around the center of the circle. The rotation direction is as follows: Figure 9 The driving wheel 18 and the synchronous transmission ring 11 can also be driven by gears, chains or friction.

[0085] In one embodiment, the blade synchronization adjustment mechanism further includes a pulley 19 slidably connected to the synchronization transmission ring 11 .

[0086] The synchronous transmission ring 11 needs an auxiliary limiting device to rotate around the center of the circle, such as a concentric cylinder or drum embedded in the synchronous transmission ring 11, or a limiting groove matching the synchronous transmission ring 11. The pulley 19 is used to reduce the friction resistance between the synchronous transmission ring 11 and the limiting device.

[0087] Figure 11 FIG is a welding diagram of the radial swirl blade and the shift fork in the embodiment of the present invention. Figure 11 As shown, the blade structure also includes:

[0088] The shift fork 16 is slidably connected to the shift pin 13 , and the radial swirl blades 14 are connected to the shift fork 16 via the blade transmission shaft 15 .

[0089] In specific implementation, each radial swirl blade 14 and the corresponding shift fork 16 are welded together through the blade transmission shaft 15. They can rotate around the blade transmission shaft 15 at the same time, and the shift fork angle represents the radial swirl blade angle.

[0090] In one embodiment, the matching structure of the detent pin 13 and the shift fork 16 can be replaced by other forms of sliding mechanisms. For example, a planetary gear structure design can be adopted, where the synchronous transmission ring 11, the transmission arm 12 and the detent pin 13 are replaced by a large gear ring, and the shift fork 16 is replaced by a small gear that meshes with the large gear ring.

[0091] Figure 12 1 is a structural diagram of a shift fork in an embodiment of the present invention; Figure 13 This is an embodiment of the present invention Figure 12 Schematic diagram of the AA direction. Figure 12-13 As shown, the detent pin 13 is slidably connected to the shift fork 16 by inserting a detent pin guide 17 on the shift fork 16.

[0092] When the synchronous transmission ring 11 rotates, the transmission arm 12 and the detent pin 13 also rotate in a circular motion with the synchronous transmission ring 11. At this time, the detent pin 13 shifts the corresponding shift fork 16, causing the shift fork 16 to rotate in a circular motion around the blade transmission shaft 15, and the detent pin 13 to slide outward in the detent guide 17. Because each detent pin 13, shift fork 16, and detent guide 17 are exactly the same size, and the blade transmission shaft 15 is the same distance from the center of the synchronous rotation ring 11, the direction and angle of the circular motion of each shift fork 16 around its respective blade transmission shaft 15 are also consistent. Since the shift fork 16 is welded to the radial swirl blades 14 as a whole, the radial swirl blades 14 also rotate around their respective blade transmission shafts 15 at the same angle and direction.

[0093] In summary, the method and device for determining the maximum blade rotation angle and the blade synchronization adjustment mechanism provided by the embodiments of the present invention have the following beneficial effects:

[0094] 1) The structural design of the synchronous rotation mechanism of the radial swirl blades is simplified.

[0095] 2) The installation difficulty of the radial swirl blade synchronous rotation mechanism is reduced.

[0096] 3) The precise adjustment of the radial swirl blade angle is achieved, which can be applied to the remote control automatic adjustment system.

[0097] The specific embodiments described above further illustrate the objectives, technical solutions and beneficial effects of the present invention in detail. It should be understood that the above description is only a specific embodiment of the present invention and is not intended to limit the scope of protection of the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

[0098] Those skilled in the art will also appreciate that the various illustrative logical blocks, units, and steps listed in the embodiments of the present invention can be implemented by electronic hardware, computer software, or a combination of the two. To clearly demonstrate the interchangeability of hardware and software, the various illustrative components, units, and steps described above have generally described their functions. Whether such functions are implemented by hardware or software depends on the specific application and the design requirements of the entire system. Those skilled in the art may use various methods to implement the described functions for each specific application, but such implementation should not be understood as exceeding the scope of protection of the embodiments of the present invention.

[0099] The various illustrative logic blocks, units, or devices described in the embodiments of the present invention can be implemented or operated by a general-purpose processor, a digital signal processor, an application-specific integrated circuit (ASIC), a field programmable gate array or other programmable logic device, discrete gate or transistor logic, discrete hardware components, or any combination thereof. The general-purpose processor can be a microprocessor, and optionally, the general-purpose processor can also be any conventional processor, controller, microcontroller, or state machine. The processor can also be implemented by a combination of computing devices, such as a digital signal processor and a microprocessor, a plurality of microprocessors, one or more microprocessors combined with a digital signal processor core, or any other similar configuration.

[0100] The steps of the methods or algorithms described in the embodiments of the present invention may be directly embedded in hardware, a software module executed by a processor, or a combination of the two. The software module may be stored in RAM memory, flash memory, ROM memory, EPROM memory, EEPROM memory, registers, a hard disk, a removable disk, a CD-ROM, or any other form of storage medium known in the art. For example, the storage medium may be connected to the processor so that the processor can read information from the storage medium and write information to the storage medium. Alternatively, the storage medium may also be integrated into the processor. The processor and storage medium may be provided in an ASIC, which may be provided in a user terminal. Alternatively, the processor and storage medium may also be provided in different components in the user terminal.

[0101] In one or more exemplary designs, the above-mentioned functions described in the embodiments of the present invention can be implemented in hardware, software, firmware, or any combination of the three. If implemented in software, these functions can be stored on a computer-readable medium or transmitted in the form of one or more instructions or codes on a computer-readable medium. Computer-readable media include computer storage media and communication media that facilitate the transfer of computer programs from one location to another. Storage media can be any available medium that can be accessed by a general or special computer. For example, such computer-readable media can include but are not limited to RAM, ROM, EEPROM, CD-ROM or other optical disk storage, magnetic disk storage or other magnetic storage devices, or any other medium that can be used to carry or store program code in the form of instructions or data structures and other forms that can be read by a general or special computer, or a general or special processor. In addition, any connection can be appropriately defined as a computer-readable medium. For example, if the software is transmitted from a website, server or other remote resource via a coaxial cable, fiber optic cable, twisted pair, digital subscriber line (DSL), or wireless methods such as infrared, wireless, and microwave, it is also included in the definition of computer-readable media. The disks and discs mentioned above include compact disks, laser disks, optical disks, DVDs, floppy disks, and Blu-ray discs. Disks typically reproduce data magnetically, while discs typically reproduce data optically with lasers. Combinations of the above may also be included in computer-readable media.

Claims

1. A method for determining the maximum rotation angle of a radial swirl blade, characterized in that: The method is applied to a blade synchronous adjustment mechanism, which comprises: a synchronous transmission ring rotating around a center of a circle, and a plurality of blade transmission mechanisms arranged on the synchronous transmission ring; The blade transmission mechanism includes: a transmission arm, a detent pin located on the transmission arm, and a blade structure including radial swirl blades and a blade transmission shaft slidably connected to the detent pin; The blade structure further includes a shift fork slidably connected to the shift pin, and the radial swirl blade is connected to the shift fork via the blade transmission shaft; The sizes of the detent pin, the shift fork and the detent pin guide in each blade transmission mechanism are exactly the same, the distance between the blade transmission shaft and the center of the synchronous transmission ring is the same, and the shift fork and the radial swirl blade are welded together; The detent pin is slidably connected to the shift fork via a detent pin guide on the shift fork. When the synchronous transmission ring rotates, the transmission arm and the detent pin also rotate in a circle with the synchronous transmission ring. At this time, the detent pin will shift the corresponding shift fork, causing the shift fork to rotate in a circle with the blade transmission shaft as the center, and the detent pin will slide outward in the detent pin guide. The method comprises: Determine the distance between the shift pin and the center of the synchronous transmission ring and the length of the shift fork; The maximum rotation angle of the radial swirl blade is determined according to the distance between the shift pin and the center of the synchronous transmission ring, the length of the shift fork and the rotation angle parameters.

2. The method for determining the maximum rotation angle of radial swirl blades according to claim 1, characterized in that: Also includes: Determine the drive wheel diameter, transmission arm width, synchronous transmission ring outer diameter, and number of radial swirl blades; The rotation angle parameter is determined according to the driving wheel diameter, the transmission arm width, the outer diameter of the synchronous transmission ring and the number of the radial swirl blades.

3. The method for determining the maximum rotation angle of radial swirl blades according to claim 2, characterized in that: Determining the number of radial swirl blades includes: Determine the distance between the end of the shift fork close to the synchronous transmission ring and the center of the synchronous transmission ring as the circumferential radius of the inner end surface of the blade; Determine the distance between the blade transmission shaft and the center of the synchronous transmission ring as the circumferential radius of the blade transmission shaft; The number of radial swirl blades is determined according to the circumferential radius of the inner end surface of the blade and the circumferential radius of the blade transmission shaft.

4. The method for determining the maximum rotation angle of radial swirl blades according to claim 3, characterized in that: Determining the number of radial swirl blades according to the circumferential radius of the inner end surface of the blade and the circumferential radius of the blade transmission shaft includes: Determine the range of the number of radial swirl blades according to the circumferential radius of the inner end surface of the blade and the circumferential radius of the blade transmission shaft; The number of radial swirl blades is determined according to the range of the number of radial swirl blades.

5. A device for determining the maximum rotation angle of radial swirl blades, characterized in that: The device for determining the maximum rotation angle of the radial swirl blade is applied to a blade synchronous adjustment mechanism, which comprises: a synchronous transmission ring rotating around a center of a circle, and a plurality of blade transmission mechanisms arranged on the synchronous transmission ring; The blade transmission mechanism includes: a transmission arm, a detent pin located on the transmission arm, and a blade structure including radial swirl blades and a blade transmission shaft slidably connected to the detent pin; The blade structure further includes a shift fork slidably connected to the shift pin, and the radial swirl blade is connected to the shift fork via the blade transmission shaft; The sizes of the detent pin, the shift fork and the detent pin guide in each blade transmission mechanism are exactly the same, the distance between the blade transmission shaft and the center of the synchronous transmission ring is the same, and the shift fork and the radial swirl blade are welded together; The detent pin is slidably connected to the shift fork via a detent pin guide on the shift fork. When the synchronous transmission ring rotates, the transmission arm and the detent pin also rotate in a circle with the synchronous transmission ring. At this time, the detent pin will shift the corresponding shift fork, causing the shift fork to rotate in a circle with the blade transmission shaft as the center, and the detent pin will slide outward in the detent pin guide. The device for determining the maximum rotation angle of the radial swirl blades comprises: A distance and length determination module is used to determine the distance between the shift pin and the center of the synchronous transmission ring and the length of the shift fork; The maximum rotation angle determination module is used to determine the maximum rotation angle of the radial swirl blade according to the distance between the detent pin and the center of the synchronous transmission ring, the length of the shift fork and the rotation angle parameter.

6. The device for determining the maximum rotation angle of radial swirl blades according to claim 5, characterized in that: Also includes: a data determination module for determining the driving wheel diameter, the transmission arm width, the outer diameter of the synchronous transmission ring, and the number of radial swirl blades; The rotation angle parameter determination module is used to determine the rotation angle parameter according to the driving wheel diameter, the transmission arm width, the outer diameter of the synchronous transmission ring and the number of the radial swirl blades.

7. The device for determining the maximum rotation angle of radial swirl blades according to claim 6, characterized in that: Also includes: The blade inner end surface circle radius determination module is used to determine the distance between the end of the shift fork close to the synchronous transmission ring and the center of the synchronous transmission ring as the circle radius of the blade inner end surface; a blade transmission shaft circumferential radius determination module, configured to determine the distance between the blade transmission shaft and the center of the synchronous transmission ring as the circumferential radius of the blade transmission shaft; The radial swirl blade number determination module is used to determine the number of radial swirl blades according to the circumferential radius of the inner end surface of the blade and the circumferential radius of the blade transmission shaft.

8. The device for determining the maximum rotation angle of radial swirl blades according to claim 7, characterized in that: The radial swirl blade quantity determination module includes: a radial swirl blade number range unit, configured to determine the radial swirl blade number range according to the circumferential radius of the inner end surface of the blade and the circumferential radius of the blade transmission shaft; The radial swirl blade quantity determination unit is configured to determine the number of the radial swirl blades according to the radial swirl blade quantity range.

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