Double-paddle driving device for model

Abstract

The utility model discloses a double-paddle driving device for a model, which comprises a fixed support, a vertically distributed transmission outer shaft is arranged at the top of the fixed support, the bottom of the transmission outer shaft is rotatably connected to the fixed support, the transmission outer shaft is a hollow shaft, a transmission inner shaft is coaxially and rotatably arranged in an inner cavity of the transmission outer shaft, and the top of the transmission inner shaft is higher than the top of the transmission outer shaft. The bottom of the transmission inner shaft is also rotationally connected to the fixed bracket, and the bottom end of the transmission inner shaft is lower than the bottom surface of the fixed bracket; a transmission outer shaft brushless motor is arranged at the top of the fixing support, and a transmission inner shaft brushless motor is arranged at the bottom of the fixing support. The transmission inner shaft and the transmission outer shaft which are nested inside and outside are adopted, brushless motor driving structures which are stacked up and down are arranged on the transmission inner shaft and the transmission outer shaft, and propellers can be connected to the transmission inner shaft and the transmission outer shaft respectively, so that the power of the model helicopter is greatly enhanced; and the motor stacked up and down also reduces the occupation of the internal space of the model helicopter, increases the battery accommodating space, and ensures the endurance.

Description

TECHNICAL FIELD

[0001] The utility model relates to a toy field, concretely is a double oar drive arrangement for model. BACKGROUND

[0002] The model helicopter power is mostly single rotor, uses single brushless outer rotation motor to carry out power output, and realizes multifunctional stunt flight with multiple rudders, but single motor power output power is limited, which limits the flight performance of the model helicopter, if in order to enhance the power installs motor to adopt double propeller structure at both ends of the model helicopter, the model helicopter is insufficient in space, cannot place the extra battery to guarantee the endurance, if in order to guarantee the endurance to reduce the motor size, the torque of small motor cannot satisfy the flight standard of the model helicopter, therefore need a space-saving double propeller drive device. SUMMARY

[0003] The utility model discloses a double oar drive arrangement for model, to solve the problem in the background art.

[0004] To solve the above technical problem, the utility model provides the following technical scheme:

[0005] A double oar drive arrangement for model, including fixed support, the fixed support top is equipped with the transmission outer shaft of vertical distribution, the transmission outer shaft bottom rotation is connected in the fixed support, the transmission outer shaft is hollow shaft, the transmission inner shaft is coaxial rotation in the transmission outer shaft inner chamber, the transmission inner shaft top is higher than the transmission outer shaft top, the transmission inner shaft bottom is rotationally connected in the fixed support same, and transmission inner shaft bottom end is lower than the fixed support bottom surface, the fixed support top is equipped with transmission outer shaft drive mechanism, and the fixed support bottom is equipped with transmission inner shaft drive mechanism.

[0006] Further embodiment, the transmission outer shaft drive mechanism includes the outer shaft casing connected in the fixed support top, the transmission outer shaft part is located in the outer shaft casing, the outer shaft casing is equipped with outer shaft stator assembly and outer shaft rotor assembly, the outer shaft stator assembly includes several even outer shaft magnetic steel and outer shaft winding iron core that surround the transmission outer shaft distribution, and the outer shaft winding iron core is located the inner side of outer shaft magnetic steel, the outer shaft rotor assembly includes the outer shaft rotor iron core that is fixed on the transmission outer shaft coaxially, the outer shaft rotor iron core is located the inner side of outer shaft winding iron core, and the outer shaft rotor iron core rotation is connected in the outer shaft casing, the transmission outer shaft top is located outside the outer shaft casing.

[0007] Preferably, the number of outer shaft magnetic steel is 12-16, and the number of outer shaft winding iron core is 10-14.

[0008] In further embodiments, the transmission inner shaft driving mechanism comprises an inner shaft casing connected at the bottom of the fixed support, the transmission inner shaft is located in the inner shaft casing, the inner shaft casing is provided with an inner shaft stator assembly and an inner shaft rotor assembly, the inner shaft stator assembly comprises a plurality of inner shaft magnetic steels uniformly distributed around the transmission inner shaft and inner shaft winding iron cores, and the inner shaft winding iron cores are located inside the inner shaft magnetic steels, the inner shaft rotor assembly comprises an inner shaft rotor iron core coaxially fixed on the transmission inner shaft, the inner shaft rotor iron core is located inside the inner shaft winding iron cores, and the inner shaft rotor iron core is rotationally connected to the inner shaft casing.

[0009] Preferably, the number of the inner shaft magnetic steels is 12-16, and the number of the inner shaft winding iron cores is 10-14.

[0010] Compared with the prior art, the utility model has the advantages that:

[0011] The utility model discloses a transmission inner shaft and transmission outer shaft are nested, and the brushless motor driving structure of upper and lower stacking is arranged on the transmission outer shaft and transmission inner shaft, and the transmission inner shaft and transmission outer shaft can be connected with the propeller respectively to realize the power enhancement of the model helicopter greatly, and the upper and lower stacking motor also reduces the occupation of the internal space of the model helicopter, increases the accommodation space of the large battery, guarantees the endurance of the double-motor model helicopter. BRIEF DESCRIPTION OF DRAWINGS

[0012] Figure 1 It is the whole structure schematic diagram of the utility model;

[0013] Figure 2 It is the internal structure schematic diagram of the utility model;

[0014] Figure 3 It is the connection schematic diagram of the utility model and the propeller.

[0015] In the drawing: 1, fixed support;2, transmission outer shaft;3, transmission inner shaft;4, outer shaft casing;5, outer shaft magnetic steel;6, outer shaft winding iron core;7, outer shaft rotor iron core;8, inner shaft casing;9, inner shaft magnetic steel;10, inner shaft magnetic steel;11, inner shaft rotor iron core. DETAILED DESCRIPTION

[0016] The technical scheme in the embodiments of the utility model will be apparently and completely described in combination with the drawings in the embodiments of the utility model, and obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the ordinary skilled in the art without creative labor belong to the scope of protection of the utility model.

[0017] The embodiments such as Figures 1-2As shown, the embodiment provides a model with double-paddle driving device, including fixed support 1, fixed support 1 top is equipped with vertical distribution transmission outer shaft 2, transmission outer shaft 2 bottom rotatably connected in fixed support 1, transmission outer shaft 2 is hollow shaft, transmission outer shaft 2 inner chamber coaxially rotates transmission inner shaft 3, transmission inner shaft 3 top is higher than transmission outer shaft 2 top, transmission inner shaft 3 bottom also rotatably connected in fixed support 1, and transmission inner shaft 3 bottom end is lower than fixed support 1 bottom surface.

[0018] Wherein, fixed support 1 top is equipped with transmission outer shaft drive mechanism, fixed support 1 bottom is equipped with transmission inner shaft drive mechanism. Transmission outer shaft drive mechanism includes outer shaft casing 4 connected in fixed support 1 top, transmission outer shaft 2 part is located in outer shaft casing 4, outer shaft casing 4 is equipped with outer shaft stator assembly and outer shaft rotor assembly, outer shaft stator assembly includes 14 outer shaft magnetic steel 5 evenly around transmission outer shaft 2 distribution and 12 outer shaft winding iron core 6, and outer shaft winding iron core 6 is located in the inner side of outer shaft magnetic steel 5, outer shaft rotor assembly includes outer shaft rotor iron core 7 coaxially fixed on transmission outer shaft 2, outer shaft rotor iron core 7 is located in the inner side of outer shaft winding iron core 6, and outer shaft rotor iron core 7 rotatably connected in outer shaft casing 4, transmission outer shaft 2 top is located in the outside of outer shaft casing 4. Transmission inner shaft 3 drive mechanism includes inner shaft casing 8 connected in fixed support 1 bottom, transmission inner shaft 3 part is located in inner shaft casing 8, inner shaft casing 8 is equipped with inner shaft stator assembly and inner shaft rotor assembly, inner shaft stator assembly includes 14 several evenly around transmission inner shaft 3 distribution inner shaft magnetic steel 9 and 12 inner shaft winding iron core 10, and inner shaft winding iron core 10 is located in the inner side of inner shaft magnetic steel 9, inner shaft rotor assembly includes inner shaft rotor iron core 11 coaxially fixed on transmission inner shaft 3, inner shaft rotor iron core 11 is located in the inner side of inner shaft winding iron core 10, and inner shaft rotor iron core 11 rotatably connected in inner shaft casing 8.

[0019] As Figure 3 Shown, use in transmission outer shaft 2 and transmission inner shaft 3 on respectively coaxially fixed with model helicopter propeller, then outer shaft winding iron core 6 and inner shaft winding iron core 10 are electrified, at this time outer shaft magnetic steel 5, outer shaft winding iron core 6 and outer shaft rotor iron core 7 form brushless motor structure drive transmission outer shaft 2 rotation and in turn drive propeller rotation, inner shaft magnetic steel 9, inner shaft winding iron core 10 and inner shaft rotor iron core 11 form brushless motor structure drive transmission inner shaft 3 rotation and in turn drive propeller rotation, transmission inner shaft 3 and transmission outer shaft inner 2 outer nesting, and in transmission outer shaft 2 and transmission inner shaft 3 on brushless motor drive structure up and down stack, while greatly enhancing the model helicopter power, up and down stacked motor also reduces the occupation of model helicopter internal space, increases the accommodation space of large battery, so that the endurance of double-motor model helicopter can be guaranteed.

[0020] In conclusion, the model double-paddle driving device enhances the model helicopter power and guarantees the endurance, greatly enhances the model stunt flying ability, and enhances the playability.

[0021] Although the embodiments of the present application have been shown and described, it is to be understood that various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the present application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A twin propeller drive for a model, characterised in that: The utility model provides a kind of fixed support (1), the fixed support (1) top is equipped with vertical distribution transmission outer shaft (2), transmission outer shaft (2) bottom is rotatably connected in fixed support (1), transmission outer shaft (2) is hollow shaft, transmission inner shaft (3) is coaxially rotated in transmission outer shaft (2) inner cavity, transmission inner shaft (3) top is higher than transmission outer shaft (2) top, transmission inner shaft (3) bottom is also rotatably connected in fixed support (1), and transmission inner shaft (3) bottom end is lower than fixed support (1) bottom surface; Wherein, the fixed support (1) top is equipped with transmission outer shaft drive mechanism, and the fixed support (1) bottom is equipped with transmission inner shaft drive mechanism.

2. The model double-paddle drive of claim 1, wherein: The transmission outer shaft drive mechanism includes the outer shaft machine shell (4) connected in the fixed support (1) top, and the transmission outer shaft (2) part is located in the outer shaft machine shell (4), and the outer shaft machine shell (4) is equipped with outer shaft stator assembly and outer shaft rotor assembly, the outer shaft stator assembly includes a plurality of outer shaft magnetic steel (5) and outer shaft winding iron core (6) that are evenly distributed around transmission outer shaft (2), and the outer shaft winding iron core (6) is located on the inner side of outer shaft magnetic steel (5), the outer shaft rotor assembly includes the outer shaft rotor iron core (7) that is coaxially fixed on transmission outer shaft (2), the outer shaft rotor iron core (7) is located on the inner side of outer shaft winding iron core (6), and the outer shaft rotor iron core (7) is rotatably connected on the outer shaft machine shell (4), and the transmission outer shaft (2) top is located outside the outer shaft machine shell (4).

3. The model double-paddle drive of claim 2, wherein: The number of outer shaft magnetic steel (5) is 12-16, and the number of outer shaft winding iron core (6) is 10-14.

4. The model double-paddle drive of claim 1, wherein: The transmission inner shaft (3) drive mechanism includes the inner shaft machine shell (8) connected in the fixed support (1) bottom, and the transmission inner shaft (3) part is located in the inner shaft machine shell (8), and the inner shaft machine shell (8) is equipped with inner shaft stator assembly and inner shaft rotor assembly, the inner shaft stator assembly includes a plurality of inner shaft magnetic steel (9) and inner shaft winding iron core (10) that are evenly distributed around transmission inner shaft (3), and the inner shaft winding iron core (10) is located on the inner side of inner shaft magnetic steel (9), the inner shaft rotor assembly includes the inner shaft rotor iron core (11) that is coaxially fixed on transmission inner shaft (3), the inner shaft rotor iron core (11) is located on the inner side of inner shaft winding iron core (10), and the inner shaft rotor iron core (11) is rotatably connected on the inner shaft machine shell (8).

5. The model double-paddle drive of claim 4, wherein: The number of inner shaft magnetic steel (9) is 12-16, and the number of inner shaft winding iron core (10) is 10-14.

Images