CN214752579U

CN214752579U - Helicopter main reducer demonstration model teaching aid

Info

Publication number: CN214752579U
Application number: CN202121283731.3U
Authority: CN
Inventors: 孙延波; 李汉东; 王伟锋
Original assignee: Shenzhen Boer Creative Culture Development Co ltd
Current assignee: Shenzhen Boer Creative Culture Development Co ltd
Priority date: 2021-06-09
Filing date: 2021-06-09
Publication date: 2021-11-16
Anticipated expiration: 2031-06-09

Abstract

The utility model discloses a helicopter main reducer demonstration model teaching aid relates to aviation teaching demonstration equipment technical field, including the fuselage that is equipped with the translucent cover, engine and main reducer, the engine passes through the engine shaft and is connected with main reducer, and the main reducer side is equipped with the main shaft, and the main shaft passes through the middle-end reduction gear and is connected with the skew axis, and the main reducer side is equipped with the main shaft, is equipped with drive assembly in the fuselage, and main reducer includes the third gear, the fourth gear, the fifth gear, the sixth gear, the seventh gear, the eighth gear, the second bearing, rub the flower iron axle, cross axle and planetary gear assembly. Through the work of motor drive main reducer, and then make the main oar axle in the fuselage drive the main oar and rotate after slowing down, main reducer work makes main shaft and middle-end reduction gear drive the skew axis and rotates, and then makes the side oar rotate, and the fuselage that is provided with the translucent cover can be directly perceived to the connected motion mode between teenager science popularization helicopter main shaft and each gear, the transmission shaft.

Description

Helicopter main reducer demonstration model teaching aid

Technical Field

The utility model relates to an aviation teaching demonstration equipment technical field especially relates to a helicopter main reducer demonstration model teaching aid.

Background

The helicopter main reducer is provided with a power input end of an engine and a power output end connected with a transmission shaft of a rotor wing and a tail rotor accessory, is one of main transmission parts on a helicopter, and is also one of the most complicated, largest and most important parts in a transmission device.

The helicopter main reducer is generally a gear drive type main reducer. Its working characteristics are speed reduction and steering. The power of the engine with high rotating speed and small torque is changed into low rotating speed and large torque to be transmitted to the rotor shaft, and the power is transmitted to the tail rotor, accessories and the like according to the requirements of the rotating speed and the torque. In a helicopter, it also acts as a central stressed member that will directly bear all the forces and moments generated by the rotor and transmit them to the airframe.

In the market, no teaching aid is specially used for the explanation and the popular science of a helicopter main reducer at present. The utility model discloses a form of model shows main reducer appearance and motion characteristic for spectator, lets spectator know helicopter main reducer's theory of operation to enrich the aviation knowledge of self.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the defects existing in the prior art and providing a demonstration model teaching aid for a main reducer of a helicopter.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a helicopter main reducer demonstration model teaching aid comprises a helicopter body provided with a transparent cover, an engine and a main reducer, wherein the engine and the main reducer are arranged in the helicopter body, the engine is connected with the main reducer through an engine shaft, a main shaft connected with the main reducer side end is arranged at the main reducer side end, the main shaft is connected with an inclined shaft through a middle reducer, a main propeller shaft is arranged at the main reducer side end, a driving assembly for driving the main reducer to work is arranged in the helicopter body, the main reducer comprises a third gear, a fourth gear, a fifth gear, a sixth gear, a seventh gear, an eighth gear, a second bearing, a patterned iron shaft, a transverse shaft and a planetary gear assembly, the output end of the driving assembly is fixedly connected with the patterned iron shaft, the patterned iron shaft is connected with the third gear, the third gear side end is provided with two fifth gears in meshed connection, and the two fifth gears are respectively connected with the sixth gear through the transverse shaft, the two sixth gears are respectively meshed with two eighth gears, the two eighth gears are respectively fixedly connected with two engine shafts, the side end of the third gear is meshed with a fourth gear, the fourth gear is fixedly connected with the main shaft, the two fifth gears are jointly meshed with a seventh gear, a second bearing is arranged at the side end of the seventh gear, the seventh gear is connected with a planetary gear assembly in the second bearing, and the planetary gear assembly is fixedly connected with one end of a main propeller shaft extending into the second bearing.

As the utility model discloses scheme further still, drive assembly includes motor and shaft coupling, the motor sets up in the fuselage, motor output end and coupling joint, the shaft coupling with the twisting iron hub connection.

As a further proposal of the utility model, the shaft coupling is connected with the twisting iron shaft through a plurality of machine meter screws.

As the utility model discloses still further scheme, the planetary gear subassembly includes first gear, second gear and ninth gear, the ninth gear sets up in the second bearing, ninth gear side meshing is connected with the second gear, second gear side meshing is connected with first gear, first gear and the one end fixed connection who extends to the main oar axle in the second bearing.

As a further aspect of the present invention, the engine shaft is provided with a first bearing.

As a further proposal of the utility model, a shell for accommodating the main reducer is arranged in the machine body.

The embodiment of the utility model provides a pair of helicopter main reducing gear demonstration model teaching aid, beneficial effect is:

through motor drive main reducer work, and then make the main oar axle in the fuselage drive the main oar and rotate after slowing down, main reducer work makes main shaft and middle-end reduction gear drive the skew axis and rotates, and then make the side oar rotate, the fuselage that is provided with the translucent cover can be directly perceived to teenager science popularization helicopter main shaft and each gear, the connected motion mode between the transmission shaft, let teenagers and aviation fan know the motion principle of helicopter screw, thereby know mechanical transmission's function and function detail, and whole device can be taken and watch in hand, the more convenient show of its principle that carries on.

Drawings

FIG. 1 is a schematic structural diagram of a helicopter main reducing gear demonstration model teaching aid provided by the application.

FIG. 2 is a schematic diagram of the internal structure of a main reducer of a helicopter main reducer demonstration model teaching aid.

In the figure: 1. an engine; 2. an engine shaft; 3. a main reducer; 301. a first gear; 302. a second gear; 303. a third gear; 304. a fourth gear; 305. a fifth gear; 306. a sixth gear; 307. a seventh gear; 308. an eighth gear; 309. a ninth gear; 4. a main shaft; 5. a middle-end reducer; 6. a skew axis; 7. a first bearing; 8. a second bearing; 9. a patterned iron shaft; 10. a coupling; 11. a machine-meter screw; 12. a horizontal axis; 13. a main propeller shaft; 14. a fuselage.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

The following detailed description is provided for the specific embodiments of the present invention.

As shown in fig. 1 and 2, a structure diagram of a helicopter main reducer demonstration model teaching aid provided by an embodiment of the present application includes a body 14 provided with a transparent cover, and an engine 1 and a main reducer 3 arranged in the body 14, the engine 1 is connected with the main reducer 3 through an engine shaft 2, a main shaft 4 connected with the main reducer 3 is arranged at a side end of the main reducer 3, the main shaft 4 is connected with an inclined shaft 6 through a middle reducer 5, a side paddle is fixedly connected with a side paddle at a side end of the inclined shaft 6, a main paddle shaft 13 is arranged at a side end of the main reducer 3, a main paddle is fixedly connected with a side paddle at a side end of the main paddle shaft 13, a driving component for driving the main reducer 3 to work is arranged in the body 14, the main reducer 3 of the driving component works to rotate the main paddle shaft 13, and further rotate the main paddle on the body 14, the main reducer 3 works to rotate the main shaft 4, the main shaft 4 rotates to drive the inclined shaft 6 to rotate through the middle reducer 5, the oblique shaft 6 rotates to enable the side paddle at the tail of the fuselage to rotate, the main reducer 3 comprises a third gear 303, a fourth gear 304, a fifth gear 305, a sixth gear 306, a seventh gear 307, eighth gears 308, a second bearing 8, a patterned iron shaft 9, a transverse shaft 12 and a planetary gear assembly, the output end of the driving assembly is fixedly connected with the patterned iron shaft 9, the patterned iron shaft 9 is connected with the third gear 303, two fifth gears 305 are arranged at the side end of the third gear 303 in a meshed connection mode, the two fifth gears 305 are respectively connected with the sixth gear 306 through the transverse shaft 12, the two sixth gears 306 are respectively connected with the two eighth gears 308 in a meshed mode, the two eighth gears 308 are respectively fixedly connected with the two engine shafts 2, the side end of the third gear 303 is connected with the fourth gear 304 in a meshed mode, the fourth gear 304 is fixedly connected with the main shaft 4, the two fifth gears 305 are jointly connected with the seventh gear 307 in a meshed mode, the second bearing 8 is arranged at the side end of the seventh gear 307, the seventh gear 307 is connected with a planetary gear assembly in the second bearing 8, and the planetary gear assembly is fixedly connected with one end of the main paddle shaft 13 extending into the second bearing 8.

In practical use, the driving assembly works to rotate the rubbing iron shaft 9 connected with the driving assembly, the rubbing iron shaft 9 rotates to rotate the third gear 303 fixedly connected with the driving assembly, the third gear 303 rotates to rotate the fourth gear 304 engaged with the third gear, so as to rotate the main shaft 4 fixedly connected with the main shaft, the main shaft 4 rotates to drive the inclined shaft 6 to rotate through the middle reducer 5, the inclined shaft 6 rotates to rotate the side blades at the tail of the machine body, the third gear 303 rotates to rotate the fifth gear 305 engaged with the third gear, the fifth gear 305 rotates to rotate the transverse shaft 12 fixedly connected with the fifth gear, the transverse shaft 12 rotates to rotate the sixth gear 306 fixedly connected with the transverse shaft, the sixth gear 306 rotates to rotate the eighth gear 308 engaged with the sixth gear, the eighth gear 308 rotates to rotate the engine shaft 2 fixedly connected with the eighth gear, so as to work the engine 1, the rotation of the two fifth gears 305 causes the seventh gear 307 engaged therewith to rotate, and the rotation of the seventh gear 307 causes the planetary gear assembly in the second bearing 8 connected therewith to operate, thereby causing the main propeller shaft 13 to rotate, thereby causing the main propeller on the airframe 14 to rotate, and the rotation of each component in the airframe 14 is observed through the transparent cover on the airframe 14.

In a condition of this embodiment, drive assembly includes motor and shaft coupling 10, and the motor sets up in fuselage 14, and the motor output is connected with shaft coupling 10, and shaft coupling 10 is connected with twisting iron axle 9, and the motor this embodiment selects for the micro motor model: ZYT46S-10, the motor works, the output end of the motor rotates the coupling 10 connected with the motor, and the coupling 10 rotates to enable the rubbing iron shaft 9 connected with the coupling to rotate.

As shown in fig. 2, as a preferred embodiment of the present application, a coupling 10 is connected to the knurled iron shaft 9 by a plurality of machine screws 11.

In one aspect of the present embodiment, the planetary gear assembly includes a first gear 301, a second gear 302, and a ninth gear 309, the ninth gear 309 is disposed in the second bearing 8, the second gear 302 is connected to a side end of the ninth gear 309 in a meshing manner, the first gear 301 is connected to an end of a main shaft 13 extending into the second bearing 8 in a meshing manner, the seventh gear 307 rotates to rotate the ninth gear 309 linked therewith, the ninth gear 309 rotates to rotate the second gear 302 connected therewith in a meshing manner, the second gear 302 rotates to rotate the first gear 301 meshed therewith, the first gear 301 rotates to rotate the main shaft 13 connected therewith, and further, the main shaft connected with the main shaft 13 on the body rotates, and the planetary gear assembly is composed of the first gear 301, the second gear 302, and the ninth gear 309.

Further, a first bearing 7 is provided outside the engine shaft 2 to facilitate rotation of the engine shaft 2 in the body 14.

Further, a casing for accommodating the main speed reducer 3 is provided in the body 14, so as to facilitate the normal operation of the main speed reducer 3.

The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.

Claims

1. The utility model provides a helicopter main reducing gear demonstration model teaching aid, is including fuselage (14) that are equipped with the translucent cover and set up engine (1) and main reducer (3) in fuselage (14), engine (1) is connected with main reducer (3) through engine shaft (2), main reducer (3) side is equipped with main shaft (4) of being connected with it, main shaft (4) are connected with skew shaft (6) through middle-end reduction gear (5), main reducer (3) side is equipped with main oar axle (13), be equipped with the drive assembly who drives main reducer (3) work in fuselage (14), its characterized in that, main reducer (3) include third gear (303), fourth gear (304), fifth gear (305), sixth gear (306), seventh gear (307), eighth gear (308), second bearing (8), twist iron axle (9), The output end of the driving assembly is fixedly connected with a twisting iron shaft (9), the twisting iron shaft (9) is connected with a third gear (303), two fifth gears (305) are connected to the side end of the third gear (303) in a meshed mode, the two fifth gears (305) are respectively connected with a sixth gear (306) through the transverse shaft (12), the two sixth gears (306) are respectively connected with two eighth gears (308) in a meshed mode, the two eighth gears (308) are respectively fixedly connected with the two engine shafts (2), the side end of the third gear (303) is connected with a fourth gear (304) in a meshed mode, the fourth gear (304) is fixedly connected with the main shaft (4), the two fifth gears (305) are jointly connected with a seventh gear (307) in a meshed mode, and a second bearing (8) is arranged at the side end of the seventh gear (307), the seventh gear (307) is connected to a planetary gear assembly in the second bearing (8), which planetary gear assembly is fixedly connected to one end of the main shaft (13) extending into the second bearing (8).

2. The helicopter main reducing gear demonstration model teaching aid of claim 1, characterized in that, drive assembly includes motor and shaft coupling (10), the motor sets up in fuselage (14), the motor output is connected with shaft coupling (10), shaft coupling (10) with twist iron axle (9) are connected.

3. The helicopter main reducer demonstration model teaching aid according to claim 2, characterized in that the shaft coupling (10) is connected with the patterned iron shaft (9) through a plurality of machine meter screws (11).

4. A helicopter main reducer demonstration model teaching aid according to claim 1, characterized in that planetary gear assembly includes first gear (301), second gear (302) and ninth gear (309), ninth gear (309) sets up in second bearing (8), ninth gear (309) side end meshing connection has second gear (302), second gear (302) side end meshing connection has first gear (301), first gear (301) and the one end fixed connection who extends to main oar axle (13) in second bearing (8).

5. A helicopter main reducer demonstration model teaching aid according to any one of claims 1-4, characterized in that a first bearing (7) is provided on the outside of the engine shaft (2).

6. A helicopter main reducer demonstration model teaching aid according to claim 5, characterized in that a shell that holds main reducer (3) is arranged in fuselage (14).