CN213566440U - Electric variable-pitch turboprop engine - Google Patents

Abstract

The utility model relates to an electronic oar turboprop that becomes. The screw includes the shell, paddle and change oar mechanism, each paddle rotates the assembly on the shell, the paddle includes the carousel, blade and eccentric driving lever, blade and carousel are coaxial, constitute the polygon installation cavity in the shell, it includes the motor to change oar mechanism, the reduction gear, the shaft coupling, lead screw and stirring dish, the motor is at least two, and each motor participates in the transmission in step, the stirring dish is through the chamber wall circumference of the face of splining and polygon installation cavity cooperation of splining, axial sliding fit, stirring dish is along lead screw axial displacement along the rotation of lead screw, stirring dish and each eccentric driving lever one-to-one are provided with the U-shaped groove, each eccentric driving lever cartridge is in corresponding U-shaped inslot, it is rotatory along the axis of carousel to promote eccentric shifting pin through the U-shaped groove when stirring dish moves. The variable-pitch propeller has the advantages of capability of quickly responding to change of the blade angle, safety, stability, small size, long service life of the motor and capability of using other motors to change the pitch when one motor is damaged.

Description

Electric variable-pitch turboprop engine

Technical Field

The utility model relates to an electronic oar turboprop that becomes.

Background

A Turbine engine (Turbine engine, or Turbine for short) is a form of engine that uses rotating parts to extract kinetic energy from a fluid passing through it, one type of internal combustion engine. Are commonly used as engines for aircraft and large ships or vehicles.

The fuel oil is divided into three structures according to the difference of fuel oil economy and actual use: turbojet engines, turbofan engines, and turboprop engines.

Turbojet engines, called turbojet engines for short, are designed to eject the combusted gases directly, providing kinetic energy against the thrust of the ejected gas stream. Its advantages are high speed and low fuel consumption. The turbojet engine is mainly applied to general fighters, bombers, unmanned planes and the like.

In order to improve the heat transfer efficiency, the turbofan engine does not directly discharge gas, but pushes the fan to rotate through the inner duct, and the gas generated by the rotation of the fan pushes the airplane to fly. Its advantages are saving oil and high speed. The turbofan engine is mainly applied to civil aircrafts such as Boeing 747, 737 and civil aircrafts such as airbus A380.

In order to improve the thermal efficiency of a turboprop engine, a turboprop engine is called as a turboprop engine for short, an engineer needs to increase the diameter of a fan, the diameter of the fan is not large enough to be placed in an airplane engine, and the fan cannot be placed outside, so that the turboprop engine is formed. The turboprop engine is also said to be a large bypass ratio turbofan engine. Only when the rotating speed of the engine is too high, a gear box is needed to decelerate, so that the rotating speed of the large fan is reduced, and the wind power of the fan drives the airplane to fly. Its advantages are saving oil, simple maintenance and slower flying speed. Turboprop engines are used primarily in military transport aircraft, such as: c-130 energetically transporting machine, an-22 transporting machine, etc.

In order to maintain the balance between the required torque of the propeller and the output torque of the engine in the working process of the turboprop engine, a rotating speed deviation signal needs to be monitored by a rotating speed measuring mechanism and is output to a propeller pitch changing mechanism to continuously change the angle of a blade, so that the working rotating speed of the engine is constant. The blade angle of the traditional turboprop engine is adjusted by adopting a hydraulic mechanism, and the following problems exist:

(1) the acceleration and deceleration performance of the propeller-driven aircraft is seriously influenced because the blade angle cannot be rapidly changed due to insufficient actuation performance and large load inertia, and the required torque of the propeller cannot be maintained in a matched manner;

(2) because high-pressure hydraulic oil is supplied to the propeller which runs at high speed for a long time, the sealing ring for sealing is easy to lose efficacy and leak oil, so that the risk that the propeller cannot realize pitch change is caused;

(3) the high-speed dynamic seal cannot provide high hydraulic pressure, and the hydraulic pitch-changing mechanism is very large in size in order to achieve required pitch-changing force.

Therefore, a new technology which can rapidly change the blade angle, avoid the sealing failure and cause the incapability of changing the blade, and has small volume, safety and stability is needed.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a but quick response is in order to change blade angle, safety and stability, small and exquisite electronic change oar turboprop engine.

In order to achieve the above object, the utility model discloses an electric variable-pitch turboprop adopts following technical scheme: the utility model provides an electronic change oar turboprop engine includes the screw, the screw includes shell, paddle and becomes oar mechanism, each paddle is radial rotation assembly on the shell, the paddle includes carousel, blade and the eccentric driving lever that integrative set up, blade and the coaxial setting of carousel, eccentric driving lever is at the eccentric setting of one side of keeping away from the blade of carousel, carousel and eccentric driving lever are located the shell, the blade is located outside the shell, the inherent each of shell constitute the polygon installation cavity between the carousel, become oar mechanism including motor, reduction gear, shaft coupling and the lead screw that transmission connects gradually, it also includes stirring dish to become oar mechanism, stirring dish passes through screw nut and installs on the lead screw, the lead screw rotates the assembly on the shell, stirring dish is located in the polygon installation cavity, stirring dish periphery is equipped with the rotation-stopping face, stirring dish through the rotation-stopping face and the chamber wall circumference rotation-stopping cooperation of polygon installation, The poking disc is in axial sliding fit, moves axially along the lead screw along with the rotation of the lead screw, the poking disc is provided with U-shaped grooves corresponding to the eccentric poking rods one by one, each eccentric poking rod is inserted into the corresponding U-shaped groove, and the poking disc pushes the eccentric poking pin to rotate along the axis of the rotating disc through the groove wall of the U-shaped groove so as to drive the blades to rotate when moving axially along the lead screw; the motor has two at least, and the output of each motor is installed drive gear respectively, is equipped with driven gear between each drive gear, and driven gear meshes the transmission with each drive gear simultaneously, and the diameter of drive gear is less than the driven gear diameter in order to realize first order speed reduction transmission.

The beneficial effect of this scheme: the utility model discloses an electronic change oar turboprop engine when using, the action of change oar replaces traditional hydraulic pressure mechanism mode by mechanical mechanism, the motor drives the lead screw action through the shaft coupling after slowing down, stir the dish on the lead screw and rely on the cooperation of screw nut and lead screw, including the polygon installation cavity of shell and the cooperation of the face of splining of stirring dish, thereby the straight reciprocating motion of stirring dish has been realized, because the special structural design of stirring dish, the straight reciprocating motion of stirring dish drives the driving lever of each U-shaped inslot and moves thereupon, thereby the driving lever motion drives the paddle that corresponds and relies on its carousel rotatory on the shell, the regulation of paddle angle has been realized, and in the motion process, the driving lever has the motion of axis direction and the branch motion of vertical axis direction, the branch motion of vertical axis direction can rely on the structure in U-shaped groove at the compensation of U-shaped inslot. Compared with the prior art, the high-pressure oil sealing ring has the advantages that a hydraulic mechanism is not adopted, so that the sealing problem is not involved, and the problems that the existing high-pressure oil sealing ring is easy to lose efficacy, leaks oil, pollutes the environment, causes safety accidents that the variable pitch cannot be realized and the like are solved; similarly, a hydraulic mechanism is not adopted, but mechanical transmission is adopted, the variable-pitch mechanism is small in size, few in system parts and simpler in structure than the prior art, the probability of maintenance and replacement is reduced, the variable-pitch mechanism is not easy to damage, and the related cost is reduced; more importantly, the motor drives the screw rod and shifting fork mechanism, the action of the motor is immediately transmitted to a rear execution component, the purpose of real-time adjustment and rapid adjustment of the blade angle is achieved, the hydraulic mechanism has the advantage of efficient response, compared with the existing hydraulic mechanism, the hydraulic mechanism has no problem of pitch delay caused by the power transmission time of a transmission medium, and the acceleration and deceleration performance of the airplane is remarkably improved. On one hand, the multiple motors are mutually backup, any one motor is damaged, and at least another motor can still continue to complete the pitch variation action, so that the safety is ensured; on the other hand, multiple motors participate in transmission simultaneously, and the transmission is synchronous, so that the load of a single motor can be reduced, the requirement of large-torque alternating load can be met, and the service life of the motor can be obviously prolonged due to the reduction of the load of the single motor; in addition, the mode that the driven gear synchronously meshes the two driving gears is adopted, the purpose of synchronous transmission can be realized by a simple structure, and meanwhile, the first-stage speed reduction transmission can be realized by utilizing the characteristic that the diameter of the driving gear is smaller than that of the driven gear.

On the basis of the scheme, the speed reducer is further improved as follows, the speed reducer comprises a planet wheel, a sun wheel of the planet wheel is in transmission connection with the driven gear, a gear ring of the planet wheel is in transmission connection with the lead screw, and secondary speed reduction transmission can be achieved.

The beneficial effect of this scheme: the planet gear is used as the second-stage large-speed-ratio reduction transmission, and the device has the characteristics of small size, high reduction efficiency and small power loss.

On the basis of above-mentioned scheme, further improve as follows, stir the dish and include the disk body, screw nut installs in disk body center department, and disk body circumference is radial outside extension and has a plurality of shift forks, and the shift fork includes two and dials the board along disk body thickness direction interval setting, and two are dialled and constitute between the board the U-shaped groove, the one end terminal surface of dialling the board and keeping away from the disk body constitutes the face that splines, the width of dialling the board is greater than the diameter of eccentric group pole.

The beneficial effect of this scheme: the special structural design of stirring dish can carry out effectual circumference on the one hand and the polygon installation cavity of shell and only rotate the cooperation, and on the other hand has realized axial reciprocating motion with the lead screw cooperation, and more crucial has integrated a plurality of shifting fork structures on it, can the angle of each paddle of synchronous adjustment, has promoted the unity of changing oar efficiency and each paddle angle.

On the basis of the scheme, the width of the shifting plate is further improved to be larger than the rotating radius of the eccentric shifting rod.

The beneficial effect of this scheme: the purpose of this is to ensure that the driver is constantly located between the two driver plates during the partial movement of the vertical axis.

On the basis of the scheme, the rotary table is further improved in the following manner, the longitudinal section of the rotary table is T-shaped, the shell is correspondingly provided with a rotary groove with the T-shaped longitudinal section, and the rotary table is arranged in a manner that the large-diameter end faces the inside of the shell and the small-diameter end faces the outside of the shell.

The beneficial effect of this scheme: this structure makes the carousel shift the centrifugal force that receives to the shell on, need not to set up in addition stop gear and carries on spacingly, simple structure to the paddle.

On the basis of the scheme, the improved structure is that the shell comprises two parts butted with each other, and the axis of each turntable is positioned on the butting face of the two parts of the shell.

The beneficial effect of this scheme: due to the T-shaped structure of the rotary disc, the shell is provided with two parts which are oppositely butted, so that the rotary disc is more convenient to mount and dismount.

On the basis of the scheme, the motor is further improved in the following mode, one end, far away from the motor, of the shell is connected with the spindle, the spindle is provided with a center hole, a power line and a signal line of the propeller penetrate through the center hole, the spindle is further provided with an electric brush slip ring, and one end of the power line and one end of the signal line are electrically connected with the electric brush slip ring.

The beneficial effect of this scheme: through the high-performance electric brush slip ring with the communication line (generally, a brush electric brush slip ring with higher reliability is selected), electricity and a signal wire are connected to the propeller end from the center hole of the main shaft, and the problem of electric power and communication transmission of the rotating stirring paddle is effectively solved.

On the basis of the scheme, the power of the motor is 150W in a further improvement mode. When the scheme is verified, the pitch-variable push-pull force of more than 3 tons is realized by using the 150W motor and the reduction gear box, the pitch-variable push-pull force is far higher than that of a hydraulic mechanism of a propeller with the same specification and is smaller than 1 ton, and the pitch-variable force requirement under various working conditions can be realized.

On the basis of the scheme, the electric variable-pitch turboprop further comprises a supporting seat, the main shaft is rotatably assembled on the supporting seat through a bearing, a sliding ring of an electric brush sliding ring is fixed on the main shaft, the electric brush is fixed relative to the supporting seat, and the electric brush is in sliding fit with the sliding ring.

On the basis of the scheme, the speed reducer is further improved as follows, a speed reducer shell is arranged outside the speed reducer, a coupler shell is arranged outside the coupler, a motor installation shell is arranged outside the motor, and the motor installation shell, the speed reducer shell, the coupler shell and the shell are sequentially detachably connected for protection.

Drawings

Fig. 1 is a partial perspective view of an embodiment of an electric variable pitch turboprop according to the present invention;

fig. 2 is a perspective view of the propeller arrangement of fig. 1 (the blade shape is only schematic);

FIG. 3 is a perspective view of a pitch mechanism;

FIG. 4 is a longitudinal cross-sectional schematic view of a pitch mechanism;

FIG. 5 is a state diagram of the fitting of the dial and the paddle;

FIG. 6 is a cross-sectional view of the engagement of the dial plate with the paddles and the housing;

FIG. 7 is a diagram showing the positional relationship between the dial plate and each of the paddles;

FIG. 8 is a perspective view of the dial plate;

FIG. 9 is a perspective view of the blade;

FIG. 10 is a front view of the housing;

FIG. 11 is a transmission diagram of the core components of the dual motors and the speed reducer;

in the figure: 1-supporting seat, 2-main shaft, 21-electric brush slip ring, 3-propeller, 31-shell, 311-polygonal mounting cavity, 32-blade, 321-rotary disc, 322-blade, 323-eccentric deflector rod, 33-variable pitch mechanism, 331-motor, 332-reducer, 3321-driving gear, 3322-driven gear, 3323-planet gear, 333-lead screw, 334-deflector disk, 3341-rotation stopping surface, 3342-disk body, 3343-shift fork, 3344-deflector plate, 3345-U-shaped groove, 335-lead screw nut and 4-coupler.

Detailed Description

The utility model discloses an electronic oar turboprop's of becoming concrete embodiment, electronic oar turboprop includes gas turbine engine, decelerator and screw, and turboprop's rationale is current maturation technology, and its theory of operation, structure etc. search for very easily on the browser, moreover this partial structure with the utility model discloses a point of improvement is irrelevant, only need to know that gas turbine engine can drive the screw rotation through decelerator to produce the pulling force at screw department and drive the body and remove, here for saving the space, no longer detailed description. Fig. 1 shows a connection state diagram of the propeller 3 and the spindle 2 in the prior art, and it can be seen from the diagram that one end of the propeller 3 is connected with the spindle 2 and the other end is connected with the variable pitch mechanism 33, the spindle 2 is rotatably assembled on the support base 1 through a bearing, a power line and a communication cable at the propeller 3 are arranged through a center hole of the spindle 2 and connected to a slip ring of the spindle 2, the slip ring is in relative sliding contact with an electric brush on the support base 1, so that the normal transmission of current can be realized while the rotation is ensured.

More specifically, as the main improved propeller 3 of the present invention, the structure is shown in fig. 2-10, the propeller 3 includes a housing 31, blades 32 and a variable pitch mechanism 33, each blade 32 is radially and rotatably assembled on the housing 31, in this embodiment, there are five blades 32, each blade 32 includes an integrally disposed turntable 321, a blade 322 and an eccentric shift lever 323, the blade 322 and the turntable 321 are coaxially disposed, the eccentric shift lever 323 is eccentrically disposed on a side of the turntable 321 away from the blade 322, the turntable 321 and the eccentric shift lever 323 are disposed in the housing 31, the blade 322 is disposed outside the housing 31, a polygonal mounting cavity 311 is formed between the turntables 321 in the housing 31, the variable pitch mechanism 33 includes a motor 331, a speed reducer 332, a coupler 4 and a lead screw 333, the variable pitch mechanism 33 further includes a shift disk 334, the shift disk is mounted on the lead screw 333 through a lead screw nut 335, the screw 333 rotates and assembles on the shell 31, the dial 334 is located in the polygonal mounting cavity 311, the dial 334 is provided with a rotation stop surface 3341 on the periphery, the dial 334 is in circumferential rotation stop fit and axial sliding fit with the cavity wall of the polygonal mounting cavity 311 through the rotation stop surface 3341, the dial 334 moves axially along the screw 333 along with the rotation of the screw 333, the dial 334 is provided with U-shaped grooves 3345 corresponding to the eccentric shift rods 323 one-to-one, each eccentric shift rod 323 is inserted in the corresponding U-shaped groove 3345, and the dial 334 pushes the eccentric shift pin to rotate along the axis of the rotating disc 321 through the groove wall of the U-shaped groove 3345 when moving axially along the screw 333 to drive the blades 32 to rotate.

In this embodiment, as shown in fig. 6 to 8, the dial plate 334 includes a plate body 3342, the screw nut 335 is installed at the center of the plate body 3342, the plate body 3342 extends radially outward in the circumferential direction, the shift fork 3343 includes two dial plates 3344 spaced apart along the thickness direction of the plate body 3342, a U-shaped groove 3345 is formed between the two dial plates 3344, an end surface of the dial plate 3344 away from the plate body 3342 forms a rotation stop surface 3341, and the width of the dial plate 3344 is greater than the diameter of the eccentric dial 323. The special structural design of the poking disc 334 can carry out effective circumferential rotation stopping cooperation with the polygonal mounting cavity 311 of the shell 31 on the one hand, and on the other hand, axial reciprocating motion is realized in cooperation with the lead screw 333, more importantly, a plurality of poking forks 3343 structures are integrated on the poking disc, so that the angle of each blade 32 can be synchronously adjusted, and the uniformity of the variable pitch efficiency and the angle of each blade 32 is improved. The width of the toggle plate 3344 is greater than the radius of rotation of the eccentric toggle 323. The purpose of this is to ensure that the shift lever is constantly between the two shift plates 3344 during the partial movement of the vertical axis. The longitudinal section of the rotating disc 321 is "T" shaped, the housing 31 is correspondingly provided with a rotating groove with a "T" shaped longitudinal section, and the rotating disc 321 is arranged in a manner that the large diameter end faces the inside of the housing 31 and the small diameter end faces the outside of the housing 31. This structure makes carousel 321 can shift the centrifugal force that receives to shell 31 on, need not to set up in addition stop gear and carries out spacingly, simple structure to paddle 32.

In the present embodiment, as shown in fig. 2, the housing 31 includes two parts that are butted against each other, and the axis of each turntable 321 is located on the butting surface of the two parts of the housing 31. Due to the T-shaped structure of the turntable 321, the two parts of the housing 31 are oppositely butted, so that the turntable 321 is more convenient to mount and dismount.

In this embodiment, as shown in fig. 3, 4 and 11, there are two motors 331, the output ends of the two motors 331 are symmetrically provided with driving gears 3321, a driven gear 3322 is arranged between the two driving gears 3321, the driven gear 3322 and the two driving gears 3321 are simultaneously in meshing transmission, and the diameter of the driving gear 3321 is smaller than that of the driven gear 3322 to realize the first-stage speed reduction transmission. On one hand, the double motors 331 back up each other, when any one motor 331 is damaged, the other motor 331 can still continue to complete the pitch changing action, and the safety is ensured; on the other hand, the dual motors 331 simultaneously participate in transmission, and the transmission is synchronous, so that the load of a single motor 331 can be reduced, the requirement of large-torque alternating load can be met, and the service life of the motor 331 can be obviously prolonged due to the reduction of the load of the single motor 331; in addition, the driven gear 3322 is synchronously meshed with the two driving gears 3321, the synchronous transmission can be realized by a simple structure, and meanwhile, the first-stage speed reduction transmission can be realized by utilizing the characteristic that the diameter of the driving gear 3321 is smaller than that of the driven gear 3322. The speed reducer 332 comprises a planet wheel 3323, a sun wheel of the planet wheel 3323 is in transmission connection with a driven gear 3322, and a gear ring of the planet wheel 3323 is in transmission connection with a screw 333, so that second-stage speed reduction transmission can be realized. The planet gear 3323 is used for second-stage large-speed-ratio speed reduction transmission, and has the characteristics of small size, high speed reduction efficiency and small power loss. The end of the housing 31 away from the motor 331 is connected to the main shaft 2, the main shaft 2 has a central hole, the power line and the signal line of the propeller 3 pass through the central hole, the main shaft 2 is further provided with a brush slip ring 21, and one end of the power line and the signal line is electrically connected to the brush slip ring 21. Through the high-performance electric brush slip ring 21 with the communication line (generally, the electric brush slip ring 21 with higher reliability is selected), the electric and signal wires are connected to the end of the propeller 3 from the center hole of the main shaft 2, and the problem of electric power and communication transmission of the rotating stirring paddle is effectively solved. The motor 331 has a power of 150W. When the scheme is verified, the pitch-variable push-pull force of more than 3 tons is realized by using the motor 331 of 150W and the reduction gear and the reduction gearbox, the pitch-variable push-pull force is far higher than that of a hydraulic mechanism of the propeller 3 with the same specification and is smaller than 1 ton, and the pitch-variable force requirement under various working conditions can be realized.

In this embodiment, as shown in fig. 1, the electric variable pitch turboprop further includes a support base 1, the main shaft 2 is rotatably assembled on the support base 1 through a bearing, a slip ring of the brush slip ring 21 is fixed on the main shaft 2, the brush is fixed relative to the support base 1, and the brush is in sliding fit with the slip ring. As shown in fig. 2, a reducer casing is disposed outside the reducer 332, a coupler 4 casing is disposed outside the coupler 4, a motor mounting casing is disposed outside the motor 331, and the motor mounting casing, the reducer casing, the coupler 4 casing, and the housing 31 are sequentially detachably connected for protection. The screw 333 is a ball screw or a trapezoidal screw.

In other embodiments, there are three motors 331, the output ends of the three motors 331 are respectively provided with a driving gear 3321, a driven gear 3322 is arranged between the three driving gears 3321, the driven gear 3322 is in mesh transmission with the three driving gears 3321, the three driving gears 3321 are uniformly arranged along the circumferential direction of the driven gear 3322, and the diameter of the driving gear 3321 is smaller than that of the driven gear 3322 to realize the first-stage speed reduction transmission. The speed reducer 332 comprises a planet wheel 3323, a sun wheel of the planet wheel 3323 is in transmission connection with a driven gear 3322, and a gear ring of the planet wheel 3323 is in transmission connection with a screw 333, so that second-stage speed reduction transmission can be realized. Reducer 332's outside is equipped with the reduction gear casing, and 4 outsides of shaft coupling are equipped with 4 casings of shaft coupling, and the outside of motor 331 is equipped with motor installation casing, and motor installation casing, reduction gear casing, 4 casings of shaft coupling and shell 31 are detachable connection in proper order in order to protect.

When the electric variable-pitch turboprop engine is used, the traditional hydraulic mechanism mode is replaced by a mechanical mechanism, the motor 331 drives the screw 333 to act through the coupler 4 after speed reduction, the poking disc 334 on the screw 333 depends on the matching of the screw nut 335 and the screw 333 and the matching of the polygonal mounting cavity 311 of the shell 31 and the rotation stopping surface 3341 of the poking disc 334, thereby realizing the linear reciprocating motion of the poking disc 334, due to the special structural design of the toggle disc 334, the linear reciprocating motion of the toggle disc 334 drives the toggle rods in the U-shaped grooves 3345 to move along with the toggle rods, and the toggle rods move to drive the corresponding blades 32 to rotate on the shell 31 by virtue of the rotating discs 321, so that the angle of the blades 32 is adjusted, and in the movement process, the deflector rod has axial movement and vertical axial partial movement, and the vertical axial partial movement can be compensated in the U-shaped groove 3345 by means of the structure of the U-shaped groove 3345. Compared with the prior art, the high-pressure oil sealing ring has the advantages that a hydraulic mechanism is not adopted, so that the sealing problem is not involved, and the problems that the existing high-pressure oil sealing ring is easy to lose efficacy, leaks oil, pollutes the environment, causes safety accidents that the variable pitch cannot be realized and the like are solved; similarly, a hydraulic mechanism is not adopted, but mechanical transmission is adopted, the variable pitch mechanism 33 is small in size, few in system parts, simpler in structure than the prior art, low in maintenance and replacement probability, not easy to damage and low in related cost; more importantly, the motor 331 drives the screw 333 and the shifting fork 3343, and the action of the motor 331 is immediately transmitted to the following executing component, so that the purpose of real-time adjustment and rapid adjustment of the angle of the blade 32 is achieved.

Claims (10)

1. The utility model provides an electronic oar turboprop engine that becomes, includes the screw, a serial communication port, the screw includes shell, paddle and becomes oar mechanism, and each paddle is radial rotation assembly on the shell, and the paddle includes carousel, blade and the eccentric driving lever that integrative set up, and blade and the coaxial setting of carousel, eccentric driving lever are in the one side eccentric settings of keeping away from the blade of carousel, and carousel and eccentric driving lever are located the shell, and the blade is located outside the shell, the inherent each of shell constitute the polygon installation cavity between the carousel, become oar mechanism including motor, reduction gear, shaft coupling and the lead screw that connects in proper order, become oar mechanism and also include the stirring dish, the stirring dish passes through screw nut and installs on the lead screw, the lead screw rotates the assembly on the shell, the stirring dish is located in the polygon installation cavity, the stirring dish periphery is equipped with the face that splines, the stirring dish through the cooperation of the chamber wall circumference of, The poking disc is in axial sliding fit, moves axially along the lead screw along with the rotation of the lead screw, the poking disc is provided with U-shaped grooves corresponding to the eccentric poking rods one by one, each eccentric poking rod is inserted into the corresponding U-shaped groove, and the poking disc pushes the eccentric poking pin to rotate along the axis of the rotating disc through the groove wall of the U-shaped groove so as to drive the blades to rotate when moving axially along the lead screw; the motor has two at least, and the output of each motor is installed drive gear respectively, is equipped with driven gear between each drive gear, and driven gear meshes the transmission with each drive gear simultaneously, and the diameter of drive gear is less than the driven gear diameter in order to realize first order speed reduction transmission.

2. The electric variable-pitch turboprop according to claim 1, wherein the reducer includes a planetary gear, a sun gear of the planetary gear is in transmission connection with the driven gear, and a ring gear of the planetary gear is in transmission connection with the lead screw, so that second-stage reduction transmission can be realized.

3. The electric variable-pitch turboprop according to claim 1 or 2, wherein the dial plate includes a plate body, the screw nut is installed at the center of the plate body, a plurality of shift forks radially and outwardly extend from the circumferential direction of the plate body, the shift forks include two dial plates arranged at intervals in the thickness direction of the plate body, the two dial plates form the U-shaped groove therebetween, one end face of the dial plate, which is far away from the plate body, forms the rotation stop face, and the width of the dial plate is greater than the diameter of the eccentric dial plate.

4. An electrically variable pitch turboprop according to claim 3, wherein the width of the paddle is greater than the radius of rotation of the eccentric paddle.

5. The electric variable pitch turboprop according to claim 1, wherein the longitudinal section of the rotary disk is "T" shaped, the housing is correspondingly provided with a rotary groove having a "T" shaped longitudinal section, and the rotary disk is arranged in such a manner that the large diameter end faces the inside of the housing and the small diameter end faces the outside of the housing.

6. An electrically variable pitch turboprop according to claim 1, wherein the housing comprises two parts which abut against each other, the axis of each rotor disc being located at the abutment face of the two parts of the housing.

7. The electrical variable pitch turboprop according to claim 1, wherein the housing is connected to a main shaft at an end remote from the motor, the main shaft having a central bore through which a power line and a signal line of the propeller pass, the main shaft further having a brush slip ring mounted thereon, the power line and the signal line having one ends electrically connected to the brush slip ring.

8. An electrically variable pitch turboprop according to claim 1, wherein the power of the electric motor is 150W.

9. The electrical variable pitch turboprop according to claim 7, further comprising a support base, wherein the main shaft is rotatably mounted to the support base by a bearing, the slip ring of the brush slip ring is fixed to the main shaft, the brush is fixed relative to the support base, and the brush is in sliding engagement with the slip ring.

10. The electric variable-pitch turboprop according to claim 1, wherein a reducer casing is disposed outside the reducer, a coupler casing is disposed outside the coupler, a motor mounting casing is disposed outside the motor, and the motor mounting casing, the reducer casing, the coupler casing and the casing are sequentially detachably connected for protection.

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