Variable pitch variable speed rotor

Abstract

The application provides a variable-pitch variable-speed rotor, which is applied in the field of rotors and has the technical scheme as follows: a shell, an input shaft and an output shaft rotatably connected to the shell, a rotating rod rotatably connected to the output shaft and driven to rotate by the input shaft, the axis direction of the rotating rod being parallel to the axis direction of the output shaft, a large planetary gear and a small planetary gear fixed to the rotating rod, a large gear ring and a small gear ring sliding along the axis direction of the rotating rod and assembled in the shell, the large gear ring and the small gear ring being unable to rotate along the radial direction thereof, a variable-speed assembly for controlling the large gear ring and the small gear ring to mesh with the large planetary gear and the small planetary gear respectively, a rotating seat rotating along with the output shaft, a tail seat rotatably connected to the rotating seat, the rotating shaft of the tail seat being perpendicular to the axis direction of the output shaft, paddles assembled on the tail seat, and a variable-pitch mechanism for controlling the tail seat to rotate so as to control the pitch of the paddles. The rotor has the technical effect that the pitch and rotating speed of the paddles can be changed, thereby improving the operability of the rotor.

Description

Technical Field

[0001] This invention relates to the field of rotors, and in particular to a variable pitch, variable speed rotor. Background Technology

[0002] Rotors are a versatile industrial product, primarily used in military, agricultural, and industrial air transport aircraft. They are suitable for various types of multi-rotor aircraft, especially twin-engine tiltrotor aircraft. Rotor pitch and speed are two crucial indicators affecting rotorcraft flight. Rotor speed refers to the rotor's rotational speed, while pitch refers to the distance the rotor travels in one revolution. The rotor and its circumference form an angle; the larger the angle, the larger the pitch. Currently, most multi-rotors are controlled using a fixed-pitch, variable-speed method, where the pitch remains constant and rotor control relies entirely on varying the rotational speed. While fixed-pitch, variable-speed rotors are inexpensive to manufacture, they suffer from low efficiency and high operational difficulty. Although these drawbacks can be mitigated by using variable-pitch, fixed-speed rotors still have performance limitations. Due to the fixed blade speed, variable-pitch, fixed-speed rotors often have to prioritize one aspect in their design, focusing on performance and range. Furthermore, the fixed rotational speed also limits the operability of the rotor. This solution aims to provide a variable-pitch, variable-speed rotor to further improve its operability. Summary of the Invention

[0003] The purpose of this invention is to provide a variable pitch and variable speed rotor, which has the advantage of being able to change the blade pitch and rotational speed, thereby improving the rotor's operability.

[0004] To achieve the above and other related objectives, the present invention provides the following technical solution: a variable-pitch, variable-speed rotor, comprising:

[0005] A housing, on which an input shaft and an output shaft are rotatably connected;

[0006] A rotating rod is rotatably connected to the output shaft and driven to rotate by the input shaft. The axial direction of the rotating rod is parallel to the axial direction of the output shaft. Large planetary teeth and small planetary teeth are fixed on the rotating rod. A large gear ring and a small gear ring are assembled inside the housing and slide along the axial direction of the rotating rod. The large gear ring and the small gear ring cannot rotate radially.

[0007] A transmission assembly for controlling the large and small gear rings to mesh with the large and small planetary gears respectively.

[0008] A rotating base that rotates with the output shaft, a tailstock rotatably connected to the rotating base, the direction of the tailstock's rotation axis being perpendicular to the axis of the output shaft, and a propeller mounted on the tailstock; and,

[0009] A pitch control mechanism used to control the rotation of the tailstock in order to control the pitch of the propeller blades.

[0010] Through the above technical solution, the speed change component controls the large and small gear rings to mesh with the large and small planetary gears respectively to achieve speed change. When the large gear ring meshes with the large planetary gear, under the constraint of the large gear ring, the large planetary gear revolves around the input shaft on the large gear ring. While revolving, the large planetary gear drives the rotating rod to revolve, which in turn drives the output shaft to rotate, thus achieving a deceleration effect. At this time, the output shaft is in a slow rotation state. When the small gear ring meshes with the small planetary gear, the output shaft is in a high-speed rotation state. The speed of the blades is changed by making the large and small gear rings mesh with the large and small planetary gears respectively; the pitch mechanism adjusts the blade pitch. This solution achieves variable speed and pitch by changing the speed of the blades through the speed change component and changing the blade pitch through the pitch mechanism, giving the rotor a high degree of operability.

[0011] In one embodiment of the present invention, the large planetary teeth and the small planetary teeth are fixedly spaced on the rotating rod, the large gear ring and the small gear ring are fixedly connected, and when the large gear ring and the small gear ring are located between the large planetary teeth and the small planetary teeth, the large gear ring and the small gear ring are in a disengaged state from the large planetary teeth and the small planetary teeth, respectively.

[0012] With the above technical solution, when the large gear ring and the small gear ring are disengaged from the large planetary gear and the small planetary gear respectively, they are in neutral. At this time, the input shaft cannot drive the output shaft to rotate. The large gear ring and the small gear ring can be driven to slide towards the large planetary gear and the small planetary gear respectively to complete the shift to high gear or low gear. When shifting gears, the large gear ring and the small gear ring can be slid in the same direction to complete the shift. Shifting gears is simple and convenient.

[0013] In one embodiment of the present invention, the transmission assembly includes:

[0014] A speed-shifting sliding rod is fixedly connected to the large and small gear rings and slidably mounted on the housing. The speed-shifting sliding rod passes through the housing and slides in the same direction as the large and small gear rings. A speed-shifting support frame is fixed to the housing. A speed-shifting shaft is rotatably connected to the speed-shifting support frame and its axis is perpendicular to the sliding direction of the speed-shifting sliding rod. A speed-shifting connecting rod has one end fixed to the speed-shifting shaft and the other end mounted on the speed-shifting sliding rod. When the speed-shifting shaft drives the speed-shifting connecting rod to rotate, the speed-shifting sliding rod slides. A speed-shifting drive device drives the speed-shifting shaft to rotate.

[0015] Through the above technical solution, the transmission drive device drives the transmission shaft to rotate, which in turn drives the transmission connecting rod to rotate. When the transmission connecting rod rotates, the height of the end of the transmission connecting rod away from the transmission shaft will change, which in turn drives the transmission sliding rod to slide. During the sliding process, the transmission sliding rod drives the large gear ring and the small gear ring to slide, which in turn causes the large gear ring and the small gear ring to mesh with the large planetary gear and the small planetary gear respectively or disengage from them, realizing the switching between high gear, low gear and neutral.

[0016] In one embodiment of the present invention, the pitch-changing mechanism includes:

[0017] A variable-pitch slide sleeve is slidably mounted on the housing, the sliding direction of the variable-pitch slide sleeve being the same as the axial direction of the output shaft; a rotating slide sleeve is rotatably connected to the variable-pitch slide sleeve, the rotation axis being the same as the sliding direction of the variable-pitch slide sleeve, the rotating slide sleeve following the sliding of the variable-pitch slide sleeve; a variable-pitch wing plate fixed to one side of the tailstock; a variable-pitch connecting rod with one end rotatably connected to the variable-pitch slide sleeve and the other end rotatably connected to the variable-pitch wing plate, the variable-pitch slide sleeve driving the variable-pitch wing plate to rotate through the variable-pitch connecting rod when sliding; and a sliding drive assembly for driving the variable-pitch slide sleeve to slide.

[0018] Through the above technical solution, the sliding drive assembly drives the variable pitch sliding sleeve to slide on the housing, and then drives the rotating sliding sleeve to slide on the housing. During the sliding process, the distance between the rotating sliding sleeve and the tailstock will change, which will cause the variable pitch connecting rod and the variable pitch blade to rotate. During the rotation of the variable pitch blade, the tailstock will rotate, thereby changing the blade angle and the blade pitch. When the rotating seat drives the blade to rotate, the rotating sliding sleeve, the variable pitch connecting rod and the variable pitch blade will rotate synchronously.

[0019] In one embodiment of the present invention, the sliding drive assembly includes:

[0020] A sliding support frame fixed to the housing; a sliding rotating rod rotatably connected to the sliding support frame at the middle position, the rotation axis of the sliding rotating rod being perpendicular to the sliding direction of the variable pitch sleeve; a sliding connecting block fixed to the variable pitch sleeve, one end of the sliding rotating rod being fitted to the sliding connecting block, the sliding connecting block sliding when the sliding rotating rod rotates; and a sliding drive device for driving the end of the sliding rotating rod away from the sliding connecting block to rotate.

[0021] Through the above technical solution, the sliding drive device drives the end of the sliding rotating rod away from the sliding connecting block to rotate. During the rotation, the end of the sliding rotating rod connected to the sliding connecting block will rotate synchronously. During the rotation, the height of the end of the sliding rotating rod connected to the sliding connecting block will change, thereby changing the height of the sliding connecting block, and thus driving the variable pitch sleeve to slide.

[0022] In one embodiment of the present invention, the input shaft is provided with radially circumferential grooves, which mesh with the planetary gears.

[0023] With the above technical solution, the rotation of the input shaft will directly drive the rotation of the large planetary gear, which in turn drives the rotation of the small planetary gear through the connecting action of the rotating rod, eliminating the need for an additional transmission device and reducing energy loss.

[0024] In one embodiment of the present invention, multiple tailstocks are arranged in a ring around the rotating seat, and multiple variable pitch wing plates and variable pitch connecting rods are arranged accordingly, all connected to a variable pitch sliding sleeve.

[0025] Through the above technical solution, multiple tailstocks are installed with multiple blades, thereby obtaining greater driving force. The angle of multiple tailstocks can be adjusted by a variable pitch sleeve, which can make the pitch of multiple blades change synchronously, making it convenient to use.

[0026] In one embodiment of the present invention, the speed change drive device is configured as a servo motor with a reducer, a drive tooth is fixed on the shaft of the reducer, and a driven tooth is fixed on the speed change shaft, with the drive tooth meshing with the driven tooth.

[0027] Through the above technical solution, the servo motor drives the active gear to rotate under the deceleration action of the reducer, and then drives the speed change shaft to rotate through the transmission action of the driven gear. The servo motor can rotate in both forward and reverse directions, and thus can control the reciprocating sliding of the large gear ring and the small gear ring to realize the gear shifting process.

[0028] In one embodiment of the present invention, the sliding drive device is configured as a servo motor with a reducer, which drives the sliding rotating rod to rotate via a crank mechanism.

[0029] Through the above technical solution, the servo motor drives the sliding rotating rod to rotate under the transmission action of the crank mechanism, which in turn drives the variable pitch sliding sleeve. The servo motor shaft rotates back and forth, driving the variable pitch sliding sleeve to slide back and forth, and the reducer plays a speed reduction role.

[0030] As described above, the variable pitch and variable speed rotor of the present invention has the following beneficial effects:

[0031] The speed change component controls the large and small ring gears to mesh with the large and small planetary gears respectively to achieve speed change. When the large ring gear meshes with the large planetary gear, under the constraint of the large ring gear, the large planetary gear revolves around the input shaft on the large ring gear. While revolving, the large planetary gear drives the rotating rod to revolve, which in turn drives the output shaft to rotate, thus achieving a deceleration effect. At this time, the output shaft is in a slow rotation state. When the small ring gear meshes with the small planetary gear, the output shaft is in a high-speed rotation state. The speed of the rotor blades is changed by making the large and small ring gears mesh with the large and small planetary gears respectively. The pitch mechanism adjusts the pitch of the rotor blades. This scheme achieves variable speed and pitch by changing the speed of the rotor blades through the speed change component and changing the pitch of the rotor blades through the pitch mechanism, giving the rotor a high degree of operability. Attached Figure Description

[0032] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present invention;

[0033] Figure 2This is a cross-sectional view of the entire embodiment of the present invention;

[0034] Figure 3 This is a cross-sectional view from another angle of an embodiment of the present invention;

[0035] Figure 4 This is a schematic diagram of the variable pitch mechanism according to an embodiment of the present invention.

[0036] Reference numerals: 1. Housing; 2. Input shaft; 3. Output shaft; 4. Rotating rod; 5. Large planetary gear; 6. Small planetary gear; 7. Transmission assembly; 8. Pitch mechanism; 9. Transmission ball joint; 10. Large gear ring; 11. Small gear ring; 12. Rotating seat; 13. Tailstock; 14. Blade; 15. Main body; 16. Connecting part; 17. Sliding part; 18. Driving gear; 19. Driven gear; 71. Transmission sliding rod; 72. Transmission support frame; 73. Transmission shaft; 74. Transmission connecting rod; 75. Transmission drive device; 81. Pitch sliding sleeve; 82. Pitch wing plate; 83. Pitch connecting rod; 84. Sliding drive assembly; 85. Rotating sliding sleeve; 841. Sliding support frame; 842. Sliding rotating rod; 843. Sliding connecting block; 844. Sliding drive device. Detailed Implementation

[0037] The following specific embodiments illustrate the implementation of the present invention. Those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification.

[0038] Please see Figures 1 to 4 It should be understood that the structures, proportions, sizes, etc., illustrated in the accompanying drawings are merely for illustrative purposes to aid those skilled in the art and to facilitate understanding and reading. They are not intended to limit the scope of the invention and therefore have no substantial technical significance. Any modifications to the structure, changes in proportions, or adjustments to size, without affecting the effectiveness and purpose of the invention, should still fall within the scope of the technical content disclosed in this invention. Furthermore, the terms such as "upper," "lower," "left," "right," "middle," and "one" used in this specification are merely for clarity and not intended to limit the scope of the invention. Changes or adjustments to their relative relationships, without substantially altering the technical content, should also be considered within the scope of the invention's implementation.

[0039] Please see Figure 1 and Figure 2 The present invention provides a variable pitch and variable speed rotor, comprising:

[0040] The housing 1 is composed of three parts: a main body 15, a connecting part 16, and a sliding part 17. The main body 15 and the connecting part 16 are fixed together by screws, and the connecting part 16 and the sliding part 17 are fixed together by screws. An output shaft 3 is rotatably connected to the housing 1. One end of the output shaft 3 is exposed outside the sliding part 17, and the other end is built into the main body 15. The output shaft 3 is connected to the main body 15, the connecting part 16, and the sliding part 17 by bearings. An input shaft 2 is also rotatably connected inside the main body 15. The input shaft 2 is coaxially arranged with the output shaft 3 and is rotatably connected to the output shaft 3 by bearings.

[0041] Please see Figure 2 It also includes multiple rotating rods 4 that are rotatably connected to the output shaft 3 in a ring shape and driven to rotate by the input shaft 2. The rotating rods 4 are connected to the output shaft 3 by needle roller bearings. The axial direction of the rotating rods 4 is parallel to the axial direction of the output shaft 3. Each rotating rod 4 is coaxially welded with a large planetary tooth 5 and a small planetary tooth 6. The large planetary tooth 5 and the small planetary tooth 6 are spaced apart along the axial direction of the rotating rod 4. The input shaft 2 is radially arranged with tooth grooves. The input shaft 2 meshes with the large planetary tooth 5 through the tooth grooves and drives the large planetary tooth 5 to rotate. The main body 15 is equipped with a sliding part that slides along the axial direction of the rotating rod 4. The large gear ring 10 and the small gear ring 11 are fixed together by a pin. When the large gear ring 10 and the small gear ring 11 are located between the large planetary tooth 5 and the small planetary tooth 6, the large gear ring 10 and the small gear ring 11 are disengaged from the large planetary tooth 5 and the small planetary tooth 6, respectively. At this time, the input shaft 2 cannot drive the output shaft 3 to rotate. When the large gear ring 10 meshes with the large planetary tooth 5, the large planetary tooth 5 revolves under the restriction of the large gear ring 10, thereby driving the output shaft 3 to rotate. At this time, the output shaft 3 is in a slow rotation state. When the small gear ring 11 meshes with the small planetary tooth 6, the output shaft 3 is in a high-speed rotation state.

[0042] Please see Figure 1 and Figure 3 It also includes a transmission assembly 7 for controlling the sliding of the large gear ring 10 and the small gear ring 11 so that they respectively mesh with the large planetary gear 5 and the small planetary gear 6. The transmission assembly 7 includes: a transmission sliding rod 71, one end of which is fixedly connected to the small gear ring 11 by a pin and slidably mounted on the connecting part 16 of the housing 1. The transmission sliding rod 71 is provided through the connecting part 16 and its sliding direction is the same as the sliding direction of the large gear ring 10 and the small gear ring 11. While driving the large gear ring 10 and the small gear ring 11 to slide, the transmission sliding rod 71 prevents the large gear ring 10 and the small gear ring 11 from rotating radially; a transmission support frame 72 fixed to the outside of the connecting part 16 by screws; and a transmission shaft 73 rotatably connected to the transmission support frame 72 by bearings and whose axial direction is perpendicular to the sliding direction of the transmission sliding rod 71.

[0043] A speed-changing connecting rod 74 is welded and fixed at one end to the speed-changing rotating shaft 73 and assembled at the other end of the speed-changing sliding rod 71 located outside the housing 1. A receiving block is welded and fixed at the end of the speed-changing sliding rod 71 located outside the housing 1. A receiving groove is opened in the receiving block. An anti-detachment block is welded and fixed at the end of the speed-changing connecting rod 74. The anti-detachment block is placed in the receiving groove and the size of the receiving groove is larger than the size of the anti-detachment block. The anti-detachment block cannot be detached from the receiving groove and the receiving groove has a margin for the anti-detachment block to move. When the speed-changing rotating shaft 73 drives the speed-changing connecting rod 74 to rotate, the speed-changing sliding rod 71 slides. A speed-changing drive device 75 drives the speed-changing rotating shaft 73 to rotate. In this embodiment, the speed-changing drive device 75 is set as a servo motor with a reducer. A drive gear 18 is fixed on the shaft of the reducer and a driven gear 19 is fixed on the speed-changing rotating shaft 73. The drive gear 18 and the driven gear 19 mesh.

[0044] Please see Figure 2 It also includes a rotating seat 12 that rotates with the output shaft 3. One end of the output shaft 3 exposed to the sliding part 17 is engaged with the rotating seat 12 through a locking block and a locking groove, so that the output shaft 3 drives the rotating seat 12 to rotate. Multiple tail seats 13 are arranged radially around the rotating seat 12. The tail seats 13 and the rotating seat 12 are rotatably connected by bearings. The direction of the rotation axis of the tail seat 13 is perpendicular to the axis of the output shaft 3. The tail seat 13 is fixed with a blade 14 by screws. The blade 14 is arranged one-to-one with the tail seat 13. The rotation of the tail seat 13 changes the pitch of the blade 14.

[0045] Please see Figure 4 It also includes a pitch control mechanism 8 for controlling the rotation of the tailstock 13 to control the pitch of the blade 14. The pitch control mechanism 8 includes: a pitch control sleeve 81 slidably sleeved on the sliding part 17 of the housing 1, the sliding direction of the pitch control sleeve 81 being the same as the axial direction of the output shaft 3; a rotating sleeve 85 rotatably connected to the end of the pitch control sleeve 81 near the blade 14 via a bearing, sleeved on the sliding part 17, the rotation axis of the rotating sleeve 85 being the same as the rotation axis of the output shaft 3, and the rotating sleeve 85 sliding along with the pitch control sleeve 81; and a pitch control blade 82 fixed to one side of the tailstock 13, the pitch control blade 82 being arranged one-to-one with the tailstock 13. The variable pitch blade 82 and the tailstock 13 are interference-fitted; a variable pitch connecting rod 83 is rotatably connected at one end to a rotating sleeve 85 and at the other end to the variable pitch blade 82 via a hinge pin. The variable pitch connecting rod 83 and the variable pitch blade 82 are arranged in a one-to-one correspondence. A transmission ball head 9 is welded and fixed on the rotating sleeve 85. The variable pitch connecting rod 83 is rotatably connected to the transmission ball head 9 via a collar. When the rotating sleeve 85 slides, it drives the variable pitch blade 82 to rotate through the variable pitch connecting rod 83. When the variable pitch blade 82 rotates, it drives the tailstock 13 to rotate, thereby changing the pitch of the blade 14; and a sliding drive assembly 84 for driving the variable pitch sleeve 81 to slide.

[0046] Please see Figure 4The sliding drive assembly 84 includes: a sliding support frame 841 welded and fixed to the connecting part 16 of the housing 1; a sliding rotating rod 842 rotatably connected to the sliding support frame 841 at a middle position, the rotation axis of the sliding rotating rod 842 being perpendicular to the sliding direction of the variable pitch sleeve 81; and a sliding connecting block 843 welded and fixed to the side wall of the variable pitch sleeve 81. One end of the sliding rotating rod 842 is mounted on the sliding connecting block 843, and a sliding receiving groove is provided on the sliding connecting block 843. A sliding anti-detachment block is welded and fixed to the end of the sliding rotating rod 842 connected to the sliding connecting block 843, and the sliding anti-detachment block is placed in the sliding receiving groove. The dimensions of the sliding receiving groove are as follows: The sliding connecting block 843 slides when the sliding rotating rod 842 rotates, which is larger than the size of the sliding anti-detachment block. In this embodiment, two sliding connecting blocks 843 are symmetrically arranged on the side wall of the variable pitch sliding sleeve 81. The sliding rotating rod 842 is configured as a forked type, and the end of each fork is fitted onto a sliding connecting block 843. In addition, a sliding drive device 844 drives the end of the sliding rotating rod 842 away from the sliding connecting block 843 to rotate. The sliding drive device 844 is configured as a servo motor with a reducer. The reducer and the servo motor are fixed to the connecting part 16 of the housing 1 by screws. The rotating shaft of the reducer is connected to the sliding rotating rod 842 through a crank mechanism.

[0047] Brief description of the operation: The transmission drive unit 75 drives the transmission shaft 73 to rotate, which in turn drives the transmission connecting rod 74 to rotate. When the transmission connecting rod 74 rotates, the height of the end of the transmission connecting rod 74 away from the transmission shaft 73 changes, which in turn drives the transmission sliding rod 71 to slide. During the sliding process, the transmission sliding rod 71 drives the large gear ring 10 and the small gear ring 11 to slide, thereby causing the large gear ring 10 and the small gear ring 11 to engage with or disengage from the large planetary gear 5 and the small planetary gear 6, respectively, to achieve... When switching between high gear, low gear, and neutral, when the large gear ring 10 meshes with the large planetary gear 5, under the constraint of the large gear ring 10, the large planetary gear 5 revolves around the input shaft 2 on the large gear ring 10. Simultaneously, the large planetary gear 5 drives the rotating rod 4 to revolve, which in turn drives the output shaft 3 to rotate, thus achieving a deceleration effect. At this time, the output shaft 3 is in a slow-speed rotation state. When the small gear ring 11 meshes with the small planetary gear 6, the output shaft 3 is in a high-speed rotation state. This is achieved by causing the large gear ring 10 to rotate. The small gear ring 11 meshes with the large planetary gear 5 and the small planetary gear 6 respectively to change the rotational speed of the blade 14; the sliding drive device 844 drives the end of the sliding rotating rod 842 away from the sliding connecting block 843 to rotate. During the rotation, the end of the sliding rotating rod 842 connected to the sliding connecting block 843 will rotate synchronously. During the rotation, the height of the end of the sliding rotating rod 842 connected to the sliding connecting block 843 will change, thereby changing the height of the sliding connecting block 843, which in turn drives the rotating sleeve 85 to slide. During the sliding, the distance between the rotating sleeve 85 and the tailstock 13 will change, thereby causing the variable pitch connecting rod 83 and the variable pitch wing plate 82 to rotate. During the rotation of the variable pitch wing plate 82, the tailstock 13 will rotate, thereby changing the angle of the blade 14 and changing the pitch of the blade 14. This scheme achieves variable pitch and variable speed by changing the rotational speed of the blade 14 through the speed change component 7 and changing the pitch of the blade 14 through the variable pitch mechanism 8, making the rotor highly operable.

[0048] In summary, this invention can change the pitch and rotational speed of the blade 14, thereby improving the operability of the rotor. Therefore, this invention effectively overcomes the various shortcomings of the prior art and has high industrial applicability.

[0049] The above embodiments are merely illustrative of the principles and effects of the present invention and are not intended to limit the invention. Any person skilled in the art can modify or alter the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or alterations made by those skilled in the art without departing from the spirit and technical concept disclosed in the present invention should still be covered by the claims of the present invention.

Claims

1. A variable-pitch, variable-speed rotor, characterized in that, include: A housing (1) on which an input shaft (2) and an output shaft (3) are rotatably connected; A rotating rod (4) is rotatably connected to the output shaft (3) and driven to rotate by the input shaft (2). The axial direction of the rotating rod (4) is parallel to the axial direction of the output shaft (3). A large planetary tooth (5) and a small planetary tooth (6) are fixed on the rotating rod (4). A large gear ring (10) and a small gear ring (11) that slide along the axial direction of the rotating rod (4) are assembled inside the housing (1). The large gear ring (10) and the small gear ring (11) cannot rotate radially. A transmission assembly (7) for controlling the large gear ring (10) and the small gear ring (11) to mesh with the large planetary gear (5) and the small planetary gear (6) respectively; A rotating seat (12) that rotates with the output shaft (3) is rotatably connected to a tailstock (13), the direction of the rotation axis of the tailstock (13) being perpendicular to the axis of the output shaft (3), and a blade (14) is mounted on the tailstock (13); and, A pitch control mechanism (8) for controlling the rotation of the tailstock (13) to control the pitch of the blade (14); The large planetary tooth (5) and the small planetary tooth (6) are fixed at intervals on the rotating rod (4), and the large gear ring (10) and the small gear ring (11) are fixedly connected. When the large gear ring (10) and the small gear ring (11) are located between the large planetary tooth (5) and the small planetary tooth (6), the large gear ring (10) and the small gear ring (11) are in a disengaged state from the large planetary tooth (5) and the small planetary tooth (6), respectively. The transmission assembly (7) includes: A speed-shifting sliding rod (71) is fixedly connected to the large gear ring (10) and the small gear ring (11) and slidably assembled in the housing (1). The speed-shifting sliding rod (71) passes through the housing (1) and its sliding direction is the same as that of the large gear ring (10) and the small gear ring (11). A speed-shifting support frame (72) is fixed to the housing (1). A speed-shifting rotating shaft (73) is rotatably connected to the speed-shifting support frame (72) and its axial direction is perpendicular to the sliding direction of the speed-shifting sliding rod (71). A speed-shifting connecting rod (74) is fixed at one end to the speed-shifting rotating shaft (73) and assembled at the other end to the speed-shifting sliding rod (71). When the speed-shifting rotating shaft (73) drives the speed-shifting connecting rod (74) to rotate, the speed-shifting sliding rod (71) slides. A speed-shifting drive device (75) drives the speed-shifting rotating shaft (73) to rotate. The pitch mechanism (8) includes: A variable-pitch sleeve (81) is slidably mounted on the housing (1), the sliding direction of the variable-pitch sleeve (81) is the same as the axial direction of the output shaft (3); a rotating sleeve (85) is rotatably connected to the variable-pitch sleeve (81), the rotation axis direction is the same as the sliding direction of the variable-pitch sleeve (81), the rotating sleeve (85) slides with the variable-pitch sleeve (81); a variable-pitch wing plate (82) is fixed to one side of the tailstock (13); a variable-pitch connecting rod (83) is rotatably connected at one end to the variable-pitch sleeve (81) and at the other end to the rotating sleeve (85), the rotating sleeve (85) drives the variable-pitch wing plate (82) to rotate through the variable-pitch connecting rod (83) when sliding; and a sliding drive assembly (84) for driving the variable-pitch sleeve (81) to slide.

2. The variable-pitch, variable-speed rotor according to claim 1, characterized in that, The sliding drive assembly (84) includes: A sliding support frame (841) fixed to the housing (1); a sliding rotating rod (842) rotatably connected to the sliding support frame (841) at the middle position, the rotation axis direction of the sliding rotating rod (842) being perpendicular to the sliding direction of the variable pitch sleeve (81); a sliding connecting block (843) fixed to the variable pitch sleeve (81), one end of the sliding rotating rod (842) being fitted to the sliding connecting block (843), the sliding connecting block (843) sliding when the sliding rotating rod (842) rotates; and a sliding drive device (844) that drives the end of the sliding rotating rod (842) away from the sliding connecting block (843) to rotate.

3. The variable-pitch, variable-speed rotor according to claim 1, characterized in that, The input shaft (2) is provided with radially circumferential grooves, which mesh with the planetary teeth (5).

4. The variable-pitch, variable-speed rotor according to claim 1, characterized in that, The tailstock (13) is arranged in a ring around the rotating seat (12), and the variable pitch wing plate (82) and variable pitch connecting rod (83) are arranged in a corresponding manner, all connected to a variable pitch sliding sleeve (81).

5. The variable-pitch, variable-speed rotor according to claim 1, characterized in that, The variable speed drive device (75) is configured as a servo motor with a reducer. The reducer shaft is fixed with a drive gear (18) and the variable speed shaft (73) is fixed with a driven gear (19). The drive gear (18) meshes with the driven gear (19).

6. The variable-pitch, variable-speed rotor according to claim 2, characterized in that, The sliding drive device (844) is configured as a servo motor with a reducer, which drives the sliding rotating rod (842) to rotate through a crank mechanism.

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