KR102448398B1 - Gear device for output control of electric drive system for aircraft - Google Patents

Abstract

The present invention relates to a gear device for controlling the output of an electric drive system for an aircraft. More particularly, the present invention relates to a gear device for controlling the output of an electric drive system for an aircraft that stably supports a gear that decelerates an output generated by a motor provided inside an electric drive system according to a gear ratio and transmits the gear to an output shaft to prevent twisting and jamming.

Description

Gear device for output control of electric drive system for aircraft

The present invention relates to a gear device for controlling the output of an electric drive device for an aircraft, and more particularly, to stably support a gear shaft that decelerates the output generated from a motor provided in the electric drive device according to a gear ratio and transmits it to the output shaft. , it relates to a gear device for controlling the output of an electric drive device for aircraft that prevents jamming.

In general, a driving device is a device that operates a machine, an instrument, etc., and in particular, an actuation system of an aircraft operates an aileron, a rudder, a flaperon, etc., which are the control surfaces of an aircraft wing. For this purpose, hydraulic actuators are mainly used.

The hydraulic drive device as described above requires a number of components such as hydraulic oil, a hydraulic pump, a hydraulic tank, a hydraulic cylinder, and a pipe for operation. The increase in load with weight should be considered.

With the recent development of technology, hydraulic actuators are being replaced with electric actuators that can contribute to MEA (More Electric Aircraft), weight reduction and system reliability improvement of future aircraft. Unmanned aerial vehicles are gaining popularity.

As an example of an electric drive device used in an unmanned aerial vehicle, Republic of Korea Patent Registration No. 1640489 uses a clutch that transmits and blocks the power of the drive motor to the output shaft to protect the gear and drive motor from external shock loads, as well as the end An input shaft having a rotation sensor is integrally formed on the other side of the output shaft, and by measuring the rotation angle of the output shaft rotated by torque using a rotation sensor that detects the rotation sensor, shock prevention that can smoothly control the output shaft Disclosed is a technology related to an electric drive device for an aircraft having a function.

Specifically, the registered patent installs one rotation sensor as a single sensor inside the electric driving device to detect the rotation angle of the output shaft, and measures the actual rotation angle of the output shaft according to the operation command, so that it is smooth even when an external shock occurs. control the output shaft.

However, in the prior art, the gearbox and the power transmission means are configured to transmit the power generated from the drive motor to the output shaft. A problem is occurring.

In addition, the prior art has a problem in that it is difficult to derive a gear structure for transmitting power because the structure for easily supporting the shaft in the narrow space of the housing is limited.

Korean Patent Registration No. 10-1640489 (2016.07.18.)

The present invention has been devised to solve the above problems, and an object of the present invention is to provide a gear device for controlling the output of an electric drive device for an aircraft capable of precisely controlling the control surface by transmitting the output generated from the motor to the output shaft. is to provide

Another object of the present invention is to provide a gear device for controlling the output of an electric drive device for an aircraft capable of stably supporting each rotating shaft that transmits power to prevent twisting and jamming due to rolling motion, rotation, and impact. have.

Another object of the present invention is to design a gear structure by efficiently using a narrow space in a housing of an electric drive device, and to provide a gear device for controlling the output of an electric drive device for an aircraft that can efficiently use the space according to the designed gear structure. is to provide

Another object of the present invention is to provide a gear device for controlling the output of an electric drive device for an aircraft capable of expanding and reducing the size of the housing according to the standard of the gearbox.

The present invention for achieving the above object is a gear device for output control of an electric drive device for an aircraft in which the output generated to control the aircraft control surface through the input input value controls the rotation angle through the output shaft, A motor having an input power gear installed therein and an output shaft exposed to the outside are respectively disposed, a housing having a space formed between the motor and the output shaft, and a gearbox for transmitting the power of the motor installed in the space to the output shaft. characterized by being made.

The gearbox is disposed in a horizontal direction between the motor and the output shaft, and a first driven gear meshed with the input power gear, and a first drive gear rotated by the first driven gear are installed on a first rotary shaft; , a second rotational shaft in which both sides of the input power gear are rotatably disposed in the housing on one side, a second driven gear meshing with the first drive gear and a second drive gear rotating by the second driven gear are installed and a third driven gear inserted into the first rotating shaft so that both sides are rotatably disposed in the housing, and a third driven gear meshed with the second driving gear, and a third driving gear rotated by the third driven gear A third rotation shaft installed, a fourth driven gear installed on the output shaft and engaged with the third drive gear to rotate the output shaft, and a first seating groove installed in the space portion and supporting the first rotation shaft are formed It is preferable that the first bracket is formed.

The gearbox includes a second bracket disposed in a central portion of the space and having second seating grooves formed on both sides, one side of the housing between the motor and the output shaft, and the other side of the second bracket of the second bracket. A first driven gear that is rotatably disposed in the seating groove and meshes with the input power gear and a first drive gear that rotates by the first driven gear is installed on a first rotating shaft, and both sides on one side of the input power gear a second rotary shaft rotatably disposed in the housing, provided with a second driven gear meshed with the first drive gear and a second drive gear rotated by the second driven gear, and from one side of the first rotary shaft The other side is rotatably disposed in the second seating groove of the second bracket on the other side of the housing, and a third driven gear meshes with the second drive gear, and a third drive rotates by the third driven gear. It is preferable that the third rotation shaft includes a gear, and a fourth driven gear that is installed on the output shaft and meshes with the third drive gear to rotate the output shaft.

It is preferable that a bearing member is installed at a position connected to the housing and the first bracket by being installed on the first to third rotation shafts and the output shaft.

It is preferable that a bearing member is installed at a position connected to the housing and the second bracket by being installed on the first to third rotation shafts and the output shaft.

Preferably, the first to third driven gears and the first to third driving gears mesh with each other, and the power generated in the motor is reduced by a gear ratio and transmitted to the output shaft.

According to the gear device for output control of the electric drive device for an aircraft according to the present invention, the output generated from the motor configured inside the housing is decelerated through the gear ratio of the gear box and output to the output shaft to precisely control the control surface. have.

According to the present invention, when the rotation shaft of the memory box is stably connected to each other and a long durability life is required, or when the shaft torsion occurs due to long-term use, when the space is different up and down, the phenomenon of being caught during rolling motion occurs. There are advantages to avoiding this.

According to the present invention, there is an advantage in that the configuration of the gearbox is efficiently designed to prevent pinching, torsion, etc., and to be installed in a narrow space.

Another object of the present invention, there is an effect that can expand and reduce the size of the space according to the design of the gearbox.

1 is a perspective view showing a gear device for output control of an electric drive device for an aircraft according to the present invention;
2 is a perspective view showing a gearbox according to a first embodiment of the present invention;
3 is a perspective view showing a gearbox according to a first embodiment of the present invention;
4 is an operation diagram showing an operating state according to a first embodiment of the present invention;
5 is a cross-sectional view showing a gearbox according to a second embodiment of the present invention;
6 is a perspective view showing a second bracket according to a second embodiment of the present invention;
7 is an operation diagram showing an operating state according to a second embodiment of the present invention;
8 is a conceptual diagram illustrating a housing according to the present invention.

Hereinafter, a gear device for output control of an electric drive device for an aircraft according to the present invention will be described in detail together with the accompanying drawings.

1 is a perspective view showing a gear device for output control of an electric drive device for an aircraft according to the present invention, FIG. 2 is a perspective view showing a gearbox according to a first embodiment of the present invention, and FIG. 3 is a first embodiment of the present invention. It is a perspective view showing a gearbox according to an embodiment, and FIG. 4 is an operation diagram showing an operating state according to the first embodiment of the present invention.

1 to 4, the present invention relates to a gear device for controlling the output of an electric drive device for an aircraft, and more particularly, the output shaft by reducing the output generated from the motor provided in the electric drive device according to the gear ratio. It relates to a gear device for controlling the output of an electric drive device for aircraft that stably supports the gear shaft transmitted to the aircraft to prevent twisting and pinching.

To this end, the present invention provides a housing 10 and a gearbox 20 to control the rotation angle of the output shaft 13 by decelerating the output generated to control the aircraft control surface 2 through the input value. is composed

The housing 10 includes a motor 12 having an input power gear 12a installed therein and an output shaft 13 exposed to the outside, respectively, and a space between the motor 12 and the output shaft 13 ( 11) is formed.

The gearbox 20 transmits the output of the motor 12 installed in the space 11 to the output shaft 13 .

Through this, the output generated from the motor 12 transmits the output to be decelerated according to the gear ratio of the gearbox 20 to the output shaft 13 .

Prior to this, in the conventional structure of the electric drive device 1, it is made in an electrical manner for adjusting the control surface 2 of the aircraft through an input value.

The electric drive device 1 is an electric drive device with high weight saving and high system reliability. It is used in an aircraft actuation system and is a control surface of an aircraft wing aileron, rudder, flaperon. It is used to operate a flaperon and a tilt rotor (hereinafter, collectively referred to as a 'control surface'), etc., and in particular, it can be efficiently used for unmanned aerial vehicles and manned aircraft.

Accordingly, the electric driving device 1 has a housing 10 capable of enclosing and protecting the output shaft 13 , the motor 12 , and the control system.

That is, a housing 10 forming an external shape is provided, and the output shaft 13, the motor 12 and the control system are installed inside the housing 10, and the output shaft 13 has one side of the It is exposed to the outside of the housing 10 and is connected to the control surface.

And the gearbox 20 is installed in the housing 10 to transmit the output between the motor 12 and the output shaft 13 , and the output generated from the motor 12 is transmitted to the output shaft 13 . do.

Through this, the output shaft 13 is organically connected to the aileron, rudder, and flaperon, which are the control surface 2 of the wing of an unmanned or manned aircraft, through a connection structure (linkage, etc.), and the control surface 2 ) is rotated.

Each configuration according to this is described in detail as follows.

First, the housing 10 is provided with a space in which a control system and an encoder for controlling the motor 12 by transmitting and receiving input values together with the motor 12 and the output shaft 13 are installed. , in this space, the space portion 11 in which the gearbox 20 is installed is formed between the motor 12 and the output shaft 13 .

The housing 10 protects the internal components constituting the electric driving device 1 , and a part of the output shaft 13 is exposed to the outside and is connected to transmit an output to the control surface 2 .

Here, the motor 12 is made of a BLDC motor, is disposed at the upper center of the housing 10, an input power gear 12a is disposed toward one side, and the output shaft 13 is a lower end from one side of the housing. It is inserted into the doedoe, one side is exposed to the outside of the housing (10).

Accordingly, the space portion 11 is formed on one side of the housing 10 , and the gearbox 20 for transmitting the output of the motor 12 to the output shaft 13 is installed.

In addition, the control system is provided on the other side of the housing 10 so as not to interfere with the configuration of the gear box 20 and the like, and the hall sensor and the encoder are the input power gear 12a and the output shaft 13. Each is installed to detect the rotation angle of

In addition, the housing 10 is configured as a set that is mutually fastened in the upper and lower directions, so that each component can be easily installed therein.

A support groove 18 for supporting the first to third rotation shafts 21 , 22 , 23 and the output shaft 13 of the gear box 20 to be described later is formed in the space 11 . .

That is, the support groove is formed at both ends of the input power gear 12a, the first to third rotation shafts 21 , 22 , 23 and the axial force shaft 13 from both sides of the space 11 . A plurality is formed so as to be selectively supported.

At this time, the bearing member 30 that protrudes is installed in the support groove 18 , and the first to third rotation shafts 21 , 22 , 23 and the output shaft 13 are connected through the bearing member 30 . rotatably supported.

Through this, the first to third rotation shafts 21 , 22 , 23 and the output shaft 13 can be prevented from being twisted and pinched due to rotation and external impact.

Next, the gearbox 20 is installed in the space 11 , and after decelerating the output generated by the motor 12 through a gear ratio, it is transmitted to the output shaft 13 .

To this end, the gearbox 20 includes a first rotation shaft 21 , a second rotation shaft 22 , a third rotation shaft 23 , a fourth driven gear 24 , and a first bracket 25 .

The first rotation shaft 21 is disposed in the horizontal direction between the motor 12 and the output shaft 13 and includes a first driven gear 21a meshed with the input power gear 12a, and the first driven gear. A first driving gear 21b rotated by the gear 21a is installed.

Accordingly, the first rotation shaft 21 is horizontally disposed between the motor 12 and the output shaft 13 .

And a first driven gear 21a meshed with the input power gear 12a is located on the other side, and the first driving gear 21b is located on one side, so that when the input power gear 12a rotates, the first The driven gear 21a rotates to rotate the first driving gear 21b.

The second rotation shaft 22 is rotatably disposed on both sides of the housing 10 at one side of the input power gear 12a, and a second driven gear 22a meshed with the first drive gear 21b. and a second driving gear 22b rotating by the second driven gear 22a is installed.

That is, the second rotation shaft 22 is disposed on one side of the input power gear 12a.

And the second driven gear 22a meshing with the first driving gear 21b is formed on the other side, and the second driving gear 22b is formed on the other side to increase the rotational force of the first driving gear 21b. It is received through the first driven gear 21a and supplied through the second drive gear 22b.

Here, it is preferable that both ends of the second rotation shaft 22 are rotatably coupled to the partition wall 16 configured inside the housing 10 at one side of the input power gear 12a.

The third rotation shaft 23 is inserted into the first rotation shaft 21 so that both sides are rotatably disposed in the housing, and a third driven gear 23a engaged with the second drive gear 22b; , a third driving gear 23b rotating by the third driven gear 23a is installed.

That is, the third rotation shaft 23 is inserted into the first rotation shaft 21 , and both sides are rotatably coupled to the partition wall 16 configured in the housing 10 .

At this time, it is preferable that the first rotation shaft 21 is formed with an insertion groove 21c that can be rotatably inserted into the third rotation shaft 23 .

Through this, the third rotation shaft 23 is rotatably coupled to the housing 10 , and the first rotation shaft 21 is rotatably inserted and supported in the third rotation shaft 23 .

And the third driven gear 23a that meshes with the second drive gear 22b is formed on the other side of the third rotation shaft 23, and the third drive gear 23b is formed on one side, so that the second drive The rotational force of the gear 22b is transmitted through the third driven gear 23a and supplied through the third driving gear 23b.

In the fourth driven gear 24 , the output shaft 13 is rotatably disposed on the housing 10 , and is engaged with the third driving gear 23b to rotate the output shaft 13 .

That is, the fourth driven gear 24 is positioned to mesh with the third drive gear 23b from the other side of the output shaft 13 inserted into the housing 10, so that the third drive gear 23b The output shaft 13 is rotated by receiving the rotational force of the

At this time, the inner side and the other side of the output shaft 13 exposed to the outside of the housing 10 are rotatably supported by the housing 10 .

Through this, the output shaft 13 is stably seated on the housing 10 to receive the output of the motor 12 and transmit the rotational force to the outside.

The first bracket 25 is installed in the space 11 , and a first seating groove 25a for supporting the first rotation shaft 21 is formed.

The first bracket 25 is formed of a plate of a certain area, a fastening portion 27 fastened to the housing 10 is formed at the lower end, and the first seating groove 25a is formed at the upper end.

Here, the fastening portion 27 is detachably coupled to the housing 10 through bolts, rivets, or the like, or is integrally formed on the inner surface of the housing 10 .

Accordingly, the first bracket 25 is fastened to the bottom surface of the housing 10 or the partition wall 16 through the fastening portion 27 , and is disposed in the vertical direction of the first rotation shaft 21 .

And the first seating groove (25a) rotatably supports the middle portion of the first rotation shaft (21).

Through this, the first bracket 25 supports the ends of the third rotation shaft 23 by rotation of the first rotation shaft 21 and external impact, respectively, to prevent twisting and pinching, and to rotate stably. support to be

And the first to third rotation shafts 21 , 22 , 23 and the output shaft 13 , and a bearing member 30 is installed at a position connected to the housing 10 and the first bracket 25 . .

The bearing member 30 rotatably supports the first to third rotation shafts 21 , 22 , 23 and the output shaft 13 seated in the housing 10 through a configuration such as a conventional ball bearing. made up of various configurations.

Through this, the first to third rotation shafts 21 , 22 , 23 and the output shaft 13 can rotate stably, and frictional force generated during rotation can be minimized.

In addition, the first to third driven gears 21a, 22a, 23a and the first to third driving gears 21b, 22b, and 23b are meshed with each other, and the gear ratio generated in the motor 12 is The output is decelerated and transmitted to the output shaft 13 .

Through this, the gearbox 20 can easily control the rotation of the output shaft through the output of the motor 12 to precisely manipulate the control surface 2 .

Next, the operating state according to the present invention will be described.

First, the motor 12, the output shaft 13 and the gearbox 20 are installed in the housing 10 as described above, and a control system and the like are additionally installed.

Here, the housing 10 forms a partition through the partition wall 16 according to each configuration, and the gearbox 20 is installed in the space 11 .

When the motor 12 rotates according to an input value input from the outside through a control system, etc., the output is transmitted to the output shaft 13 through the gear box 20 .

Accordingly, the gearbox 20 includes the first to third driven gears 21a, 22a, 23a and the first to third driving gears formed on the first to third rotation shafts 21, 22, and 23, respectively. 21b, 22b, 23b) receives the output transmitted through the input power gear 12a and transmits it to the fourth driven gear 24 installed on the output shaft 13 .

Here, the output of the motor 12 is reduced through a gear ratio between the first to third driven gears 21a, 22a, and 23a and the first to third driving gears 21b, 22b, and 23b to reduce the output of the output shaft 13 ) is rotated.

Through this, the rotational state of the output shaft 13 can be controlled to precisely manipulate the rotation angle of the control surface 2 connected to the output shaft 13 .

And the third rotation shaft 23 is supported by the housing 10, the first rotation shaft 21 is coupled to the third rotation shaft 23, and is supported through the first bracket 25 to rotate and It can prevent twisting and pinching caused by impact.

In addition, the gearbox 20 supports the first rotation shaft 21 through the first bracket 25 , and the second to third rotation shafts 22 and 23 are stably attached to the housing 10 . coupled, it is possible to prevent an external force applied to the control surface 2 through the plurality of gears from being applied to the motor 12 through the output shaft 13 .

Figure 6 is a cross-sectional view showing a gearbox according to a second embodiment of the present invention, Figure 7 is a perspective view showing a second bracket according to the second embodiment of the present invention, Figure 8 is a second embodiment of the present invention It is an operation diagram showing an operation state according to an example.

6 to 8, the second embodiment includes the first embodiment, and the configuration of the gearbox is as follows.

Therefore, the gearbox 20 is installed in the space 11 of the housing 10, and a second bracket 26 to transmit the output of the motor 12 to the output shaft 13 by deceleration; It consists of a first rotation shaft 21 , a second rotation shaft 22 , a third rotation shaft 23 , and a fourth driven gear 24 .

The second bracket 26 is disposed in the central portion of the space 11, and second seating grooves 26a are formed on both sides.

That is, the second bracket 26 has a fastening portion 27 fastened to the housing 10 at a lower end thereof, and the second seating grooves 26a are formed on both sides of the upper end surface, respectively.

Accordingly, the second bracket 26 is installed on the bottom surface of the housing 10 or the partition wall 16 through the fastening part 27, and the fastening part 27 is bolted to the housing 10; It is detachably coupled through a rivet or the like, or is integrally formed on the inner surface of the housing 10 .

At this time, the second bracket 26 is positioned between the motor 12 and the output shaft 13 to support the ends of the first rotation shaft 21 and the third rotation shaft 23 . It is disposed in the vertical direction of the rotation shaft (21).

Through this, the first bracket 25 is made to rotate stably by preventing twisting and pinching at one side due to the rotation of the first rotating shaft 21 and the third rotating shaft 23 and external impact.

The first rotating shaft 21 is rotatable between the motor 12 and the output shaft 13 at one end in the housing 10 and the other end in the second seating groove 26a of the second bracket 26 . and a first driven gear 21a that meshes with the input power gear 12a and a first drive gear 21b that rotates by the first driven gear 21a are installed.

The second rotation shaft 22 is rotatably disposed on both sides of the housing 10 at one side of the input power gear 12a, and a second driven gear 22a meshed with the first drive gear 21b. and a second driving gear 22b rotating by the second driven gear 22a is installed.

The third rotation shaft 23 is rotatably rotatable from one side of the first rotation shaft 21 to the housing 10 and the other end to the second seating groove 26a of the second bracket 26 . and a third driven gear 23a that meshes with the second drive gear 22b, and a third drive gear 23b that rotates by the third driven gear 23a are installed.

In the fourth driven gear 24 , the output shaft 13 is rotatably disposed on the housing 10 , and is engaged with the third driving gear 23b to rotate the output shaft 13 .

That is, the gearbox 20 of the second embodiment has a configuration similar to that of the gearbox 20 of the first embodiment, wherein the first rotational shaft 21 and the third rotational shaft 23 are concentric or spaced apart. are arranged as much as possible.

In addition, the second bracket 26 is located between the first rotation shaft 21 and the third rotation shaft 23, the first rotation shaft 21 and the The third rotation shaft 23 is supported.

Accordingly, one side of the first rotation shaft 21 is supported on the second bracket 26 and the other side is supported on the housing 10 , one side of the third rotation shaft 23 is supported on the housing 10 , and the other side is supported on the housing 10 . It is supported on the second bracket (26).

Through this, the first rotation shaft 21 and the third rotation shaft 23 are positioned on the same axis line, and adjacent both ends are supported by the second bracket 26, respectively, and the first and third rotation shafts 23 and It is possible to prevent twisting and pinching of the third rotating shafts 21 , 22 , and 23 .

Next, the operating state according to the present invention will be described.

First, the housing 10 selectively combines the first to third bodies 14 and 15 17 as described in the first embodiment in accordance with the specifications of the gear box 20 to form the space portion 11 ) is expanded and reduced.

As described above, the motor 12, the output shaft 13, and the gearbox 20 are additionally installed with a control system, etc. together with the housing 10 combined in this way, and it operates as in the first embodiment. this is done

At this time, both sides of the first rotation shaft 21 and the third rotation shaft 23 are stably fixed to the housing 10 and the second bracket 26, and the second rotation shaft 22 is attached to the housing. It is stably fixed to prevent twisting and pinching caused by rotation and external impact, and can be transmitted smoothly.

Through this, it is possible to precisely control the rotation angle of the control surface 2 by controlling the rotation state of the output shaft 13 .

In addition, the gearbox 20 may prevent an external force applied to the control surface from being transmitted to the motor 12 through a plurality of respective gears.

Next, as FIG. 8 is a conceptual diagram illustrating a housing according to the present invention, the housing 10 according to the first and second embodiments is the motor 12, the control system and the encoder are installed. It is made so as to form the space and the space portion 11 in which the gearbox 20 is installed.

Accordingly, the housing 10 has an open side on which the motor 12 is seated, a first body 14 having a first fastening groove 14a formed on an inner peripheral surface of one end thereof, and the first body 14 . The other side coupled to one side is open, the gear box 20 is installed and a second body 15 having a second fastening groove 15a formed on the inner peripheral surface of the other end, the first fastening groove 14a and It is fastened to the second fastening groove (15a) and formed as a partition wall (16) dividing the first body (14) and the second body (15).

At this time, the first body 14, the second body 15, and the partition wall 16 form a seal at the portion where they are in close contact with each other to prevent the inflow of external air, and to prevent a change in atmospheric pressure according to the altitude. sealed inside so that

Here, on the inner circumferential surface of one side of the second body 15 and the partition wall 16, a support groove 18 in which each shaft of the gearbox 20 is rotatably seated is formed, respectively.

Through this, the housing 10 installs the partition wall 16 at the center where the first body 14 and the second body 15 are coupled, so that the motor 12 and the gear box 20 are seated. The space portion 11 can be formed.

In addition, each shaft constituting the gear box 20 is rotatably and stably supported through the support groove 18 formed in the second body 15 and the partition wall 16 to prevent twisting and pinching. can do.

And a third body 17 disposed between the first body 14 and the second body 15 to connect the housing 10 in the longitudinal direction is further included.

The third body 17 has the same cross-sectional shape as the side cross-sections of the first and second bodies 14 and 15, and has a fastening protrusion 17a inserted into the second fastening groove 15a on the inner peripheral surface of one end. is formed, and a third fastening groove (17b) in close contact with the first fastening groove (14a) is formed on the inner peripheral surface of the other end.

Accordingly, in the third body 17, the third fastening groove 17b on the other side extends with the first fastening groove 14a, and the partition wall 16 is seated, and the fastening protrusion 17a on one side is It is installed in the second fastening groove (15a).

At this time, a seal is installed on the fastening protrusion 17a to closely contact the second fastening groove 15a to seal the inside.

Through this, as the housing 10 selectively expands the space 11 through the third body 17, The space can be easily expanded and contracted.

Accordingly, as shown in (a) of FIG. 8, the housing 10 is formed by coupling the first body 14, the second body 15, and the partition wall 16 to each other, and then the first and second 2 Brackets 25 and 26 are integrally formed or coupled to the second body 15 or the partition wall 16 .

The housing 10 forms the space portion 11 according to the standard of the second body 15, and the gear box 20 is seated therein.

That is, the space 11 of the housing 10 can efficiently use the space according to the design of the gearbox 20 described in the first embodiment.

And, as shown in (b) of Figure 8, the housing 10 is a combination of the first body 14, the second body 15, the third body 17 and the partition wall 16 to each other. Then, the first and second brackets 25 and 26 are integrally formed or coupled to the second body 15 or the partition wall 16 .

Accordingly, the housing 10 forms the space 11 according to the specifications of the second body 15 and the third body 17, and the gearbox 20 is seated therein.

At this time, the housing 10 forms a wider space than the space 11 shown in FIG. can

As such, the housing 10 can expand and contract the space of the space 11 by selectively installing the first body 14, the second body 15, and the third body 17. have.

This can be efficiently installed inside the housing 10 in accordance with the design of the gearbox 20, thereby preventing the increase in the size of the electric drive device 1 due to unnecessary space.

In addition, the gearbox 20 can be efficiently designed according to the expansion and contraction of the space 11 .

As described above, the rights of the present invention are not limited to the embodiments described above, but are defined by the claims, and those of ordinary skill in the art may make various modifications and adaptations within the scope of the claims. It is self-evident that you can

1: Electric drive 2: Control surface
10: housing 11: space 12: motor
12a: input power gear 13: output shaft
14: first body 14a: first fastening groove
15: second body 15a second fastening groove
16: bulkhead 17: third body
17a: fastening protrusion 17b: third fastening groove
18: support groove
20: gearbox 21: first rotation shaft 21a: first driven gear
21b: first drive gear 22: second rotation shaft
22a: second driven gear 22b: second drive gear
23: third rotation shaft 23a: third driven gear
23b: third drive gear 24: fourth driven gear
25: first bracket 25a: first seating groove
26: second bracket 26a: second seating groove
27: fastening part
30: bearing member

Claims (6)

A gear device for output control of an electric drive device for an aircraft that controls a rotation angle of an output shaft by reducing the speed of an output generated so that an aircraft control surface can be controlled through an input value,
A housing in which a motor 12 having an input power gear 12a installed therein and an output shaft 13 exposed to the outside are respectively disposed, and a space 11 is formed between the motor 12 and the output shaft 13 ( 10) and
Doedoe consisting of a gearbox 20 that transmits the output of the motor 12 installed in the space 11 to the output shaft 13,
The gearbox 20 is
A first driven gear 21a which is disposed in the horizontal direction between the motor 12 and the output shaft 13 and meshes with the input power gear 12a, and the first driven gear 21a. A first rotation shaft 21 on which the first drive gear 21b is installed, and
On one side of the input power gear 12a, both sides are rotatably disposed on the housing 10, and the second driven gear 22a and the second driven gear 22a meshed with the first drive gear 21b. ) and a second rotation shaft 22 provided with a second drive gear 22b rotated by
A third driven gear 23a inserted into the first rotating shaft 21 so that both sides are rotatably disposed on the housing 10 and meshed with the second driving gear 22b, and the third driven A third rotation shaft 23 provided with a third drive gear 23b rotated by the gear 23a;
a fourth driven gear 24 installed on the output shaft 13 and engaged with the third driving gear 23b to rotate the output shaft 13;
Gear for output control of an electric driving device for aircraft, characterized in that it is installed in the space portion 11 and includes a first bracket 25 having a first seating groove 25a for supporting the first rotation shaft 21 . Device. A gear device for output control of an electric drive device for an aircraft that controls a rotation angle of an output shaft by reducing the speed of an output generated so that an aircraft control surface can be controlled through an input value,
A housing in which a motor 12 having an input power gear 12a installed therein and an output shaft 13 exposed to the outside are respectively disposed, and a space 11 is formed between the motor 12 and the output shaft 13 ( 10) and
Doedoe consisting of a gearbox 20 that transmits the output of the motor 12 installed in the space 11 to the output shaft 13,
The gearbox 20 is
a second bracket 26 disposed in the center of the space 11 and having second seating grooves 26a formed on both sides thereof;
One side is rotatably disposed between the motor 12 and the output shaft 13 in the housing 10 and the other side is rotatably disposed in the second seating groove 26a of the second bracket 26, and the input power gear A first rotation shaft 21 provided with a first driven gear 21a meshed with (12a) and a first drive gear 21b rotated by the first driven gear 21a;
On one side of the input power gear 12a, both sides are rotatably disposed on the housing 10, and the second driven gear 22a and the second driven gear 22a meshed with the first drive gear 21b. ) and a second rotation shaft 22 provided with a second drive gear 22b rotated by
One end of the first rotation shaft 21 is rotatably disposed in the housing 10 and the other end is rotatably disposed in the second seating groove 26a of the second bracket 26, and the second driving gear A third rotation shaft 23 provided with a third driven gear 23a meshed with (22b) and a third drive gear 23b rotated by the third driven gear 23a;
A gear device for output control of an electric driving device for aircraft, characterized in that it is installed on the output shaft 13 and includes a fourth driven gear 24 that is engaged with the third drive gear 23b to rotate the output shaft 13 . delete The method of claim 1,
The first to third rotation shafts 21 , 22 , 23 and the output shaft 13 are installed to ensure that the bearing member 30 is installed at a position connected to the housing 10 and the first bracket 25 . A gear device for controlling the output of an electric drive device for aircraft, characterized in that it. 3. The method of claim 2,
The first to third rotation shafts 21 , 22 , 23 and the output shaft 13 and the bearing member 30 are installed at positions connected to the housing 10 and the second bracket 26 . A gear device for controlling the output of an electric drive device for aircraft, characterized in that it. 3. The method of claim 1 or 2,
The first to third driven gears 21a, 21b, 21c and the first to third drive gears 21b, 22b, and 23b are meshed with each other, and the output shaft is reduced by decelerating the output generated from the motor 12 by a gear ratio. (13) A gear device for output control of an electric drive device for aircraft, characterized in that it is transmitted to.

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