KR102011299B1 - Drive Device For Helicopter - Google Patents

Abstract

The present invention relates to a control device for a helicopter, and in particular, a cyclic control rod for controlling the helicopter's forward, backward, left and right movement direction, and a bell crank assembly that can be controlled independently linked to the collective control for controlling the rise and fall of the helicopter and And a swash plate for tilting the rotor blades vertically, front, rear, left, and right according to the operation of the bell crank assembly, wherein the bell crank assembly linearly moves up, down, left, right, and up and down movements between the cyclic controls and the collective controls. The present invention relates to a helicopter control device characterized in that the transfer to the swash plate.

Description

Helicopter Steering Device {Drive Device For Helicopter}

The present invention is a bell crank assembly which is located between the cyclic steering wheel and the collective steering wheel and the main hub and converts the rotational movement between the cyclic steering wheel and the collective steering wheel into a linear motion, and installed in the main hub according to the operation of the bell crank assembly The present invention relates to a helicopter control device including a swash plate for moving a blade up, down, left, and right.

In general, a rotorcraft aircraft is typically equipped with a manually operated control system to enable pilots to fly a rotorcraft aircraft. Among these control systems, the pilot sets the pitch of the blades to control the rotorcraft during the periodic steering and ascending, allowing the pilot to adjust the pitch of the blades periodically in order to allow the rotorcraft to move in pitch and roll conditions. There is a collective control panel that can be controlled individually.

The periodic steering wheel is arranged in the frame with hinge couplings, eg boxes, and is mounted to be tilted in two control directions associated with each flight control. The periodic control rod is hinged to the frame via the distal fixation end, and a handle for gripping is provided at the proximal free end. The proximal end is the end of the maneuver that the pilot can manipulate, while the distal fixed end is the end of the periodic maneuver away from the proximal end.

Collective and periodic controls are connected to the blade via mechanical connections, commonly referred to as "linkages," which are secured to a non-rotating swashplate of a series of control swashplates. In this set of control swarf plates, the rotating swarf plate itself is mechanically connected to each blade via a pitch control rod.

More precisely, the first roll and pitching linkage connect the double hinge of the fixed end between the periodic controls to the mixing device, where the mixing device is connected to the non-rotating swarf plate of the periodic set of swash plates via the second linkage. have. The collective steering wheel is also connected to the mixing device via the collective first linkage. In this situation, the control is connected to the rotorcraft via a roll, pitching or collective linkage provided with the first linkage in front of the second linkage.

The movement of the periodic controls moves the first linkage in the roll or the first linkage in the pitching and thus the corresponding second linkage through the mixing device. In contrast, when the collective joystick moves, it moves the collective first linkage and all the second linkages through the mixing device.

Nevertheless, each second linkage is generally connected to a servo control device because of the large force that needs to be applied to change the pitch of the blade. For example, there is provided at least one servocontroller, referred to as " pitching servocontroller " for convenience, to control the pitching, and two controls, namely the left servocontroller and the right servocontroller, for controlling the roll. do.

If the pilot attempts to modify the collective pitch of the blades, the pilot operates the collective control rod to cause all three servopilots to elevate the control swab set.

And since the pitch control rods all move the same, the pitch of all blades is changed by the same angle.

On the other hand, in order to change the periodic pitch of the blades to direct the helicopter in a given direction, the pilot moves at least one servopilot by appropriately tilting the periodic steering wheel in the desired direction.

This control swashplate set does not move vertically but tilts with respect to the pillar of the main motor. Thus, each pitch control rod moves along the designated target to produce an appropriate periodic change in the pitch of each blade.

Also, when moving periodically, this set of control swarf needs to be tilted about two vertical axes. In a lightweight rotary wing aircraft having a small bending stress on the control swash plate set, the point at which the servopilot is fixed to the control swash plate set is located on the axis.

And the periodic manipulator is connected to the phase matching means separate from the periodic manipulator via a first roll linkage and a first pitching linkage, the phase matching means being connected to the mixing device via one mechanical connection per servopilot.

And a manner for carrying out a roll or pitching operation, sometimes referred to by those skilled in the art as a "pure order", is converted from the phase matching means to the complex movement of all mechanical connections downstream. Under these circumstances, strictly speaking, there is no longer one roll control linkage and one pitching control linkage between the phase matching means and the mixing device. When three servopilots are used, the three corresponding mechanical connections are sometimes called "front linkage" and "left linkage" and "right linkage" depending on the position of the three servopilots.

In another aspect, the flight control of a rotorcraft aircraft includes a peda that controls the second rotor in the yaw by a yaw linkage that passes optionally through a mixing device.

Periodic controls include elongated sticks or "columns" primarily used to manually transfer control, and short periodic sticks primarily used to electrically transfer control. As one example, the length of the long periodic stick is about three to four times the length of the short periodic stick.

Elongated periodic sticks have important inter-arm arms that are advantageous for mechanically transferring control, making them easier to pilot. The pilot then uses all the arms to operate the long periodic sticks with the right amount of force, and can directly feel the opposite force generated by the remote power source member. Smaller sticks can be placed on one side of the pilot to make the cockpit more ergonomic in front of the pilot. Such sticks are sometimes called "mini sticks" because of their small size compared to the size of conventional long sticks.

This mechanical structure allows compromises to be obtained by using axially short periodic sticks to control the rotor blades, but nevertheless, this mechanical structure creates a high degree of friction, resulting in bell cranks. There is a problem that the operation performance is reduced due to the complicated structure of the flexible operation.

U.S. Registered Patent # 1,550,739 Republic of Korea Patent No. 10-1356099 Republic of Korea Patent No. 10-0806921

The present invention has been made to solve the above-mentioned problems, the bell crank assembly to enable the interlock between the cyclic steering wheel and the collective control, smooth and easy to operate, and stable rotation of the swash plate to improve the running performance It is an object of the present invention to provide a helicopter control device.

Helicopter control device of the present invention for achieving the above object, the cyclic control rod for controlling the front, rear, left and right movement direction of the helicopter, the collective control rod for controlling the rise and fall of the helicopter, the cyclic control rod and the collective control between And a bell crank assembly that is interlocked through an overlink linkage, and a swash plate connected to the bell crank assembly and a control linkage, the swash plate tilting the rotor blades up, down, left and right according to the operation of the bell crank assembly. In the control device, the bell crank assembly converts the vertical movement between the left and right movement between the cyclic control and the vertical movement between the collective control to a vertical movement to transfer to the swash plate to easily control the forward and backward, left and right movement and lifting of the helicopter. Characterized by do.

The bell crank assembly may include a first body having a first through hole, a first through second hole, a first groove, and a first through third hole, and a first through fourth hole formed in the lower part thereof; The second body is installed so as to be slidable on one side of the first body, the second through-hole, the second through-hole is formed in the upper part, the second body formed with the second through-hole in the lower part, and the first body It is installed to be slidable on the other side of the 3-1 through-hole, the third groove and the 3-2 through-hole are formed in turn, the lower body and the third body is formed through the third through-hole and the third body, the third body A second through hole for penetrating the upper portion of the upper portion is formed at the bottom, the second lever is formed on one side and the second through hole is formed on the other side, the second lever is installed so as to slide outside the second body The 4-1 through hole, the 4-2 through hole, the fourth groove and the 4-3 through hole are sequentially formed in the upper portion, and the 4-4 tube in the lower portion. A ball is formed to be slidable on the outer side of the first casing and the third body, and the 5-1 through hole, the 5-2 through hole, the fifth groove and the 5-3 through hole are sequentially formed in the upper portion, and It includes a second casing 5-5 through-hole is formed, the 4-1 through hole, the 2-1 through hole, the 1-1 through hole, the 3-1 through hole and the fifth A first fastening pin for fastening the first through hole in order; the second through second hole, the second through hole and the first through hole, the second through hole, the second through hole, and the second through hole. A second fastening pin for fastening a third groove through the second through hole in order; the fourth groove, the second through second hole, the first through the second through hole, and the second through hole. A third fastening pin for fastening the fifth groove in order, a fourth fastening pin for fastening the fourth through hole, the first through third hole and the third through hole in order; The 4-4 through hole, the 2-3 through hole, image A fifth fastening pin for fastening the first through fourth through holes, the third through third through holes, and the fifth through fourth through holes, and through the second through third through third through holes; And a sixth fastening pin for fastening, and a seventh fastening pin for fastening the first b through hole and the second b through hole.

The fifth fastening pin fastened through the transmission linkage connected to the cyclic steering wheel is pushed and pulled according to the front, rear, left and right movements between the cyclic steering wheel, and thus the first body having the fifth fastening pin and the lower part fastened. The front and rear of the swash plate connected via the control linkage changes as each moves forward or backward, the cyclic control between the cyclic control and the transmission linkage connected according to the left and right movement between the cyclic control The sixth fastening pin is pushed and pulled, and accordingly, the second body and the third body having the sixth fastening pin and the bottom fastened are moved forwards or backwards, respectively, so that the swash is connected through the control linkage. By changing the horizontal position of the plate, you can easily control the front, rear, left and right movement of the helicopter The features.

The seventh fastening pins which are fastened through the transmission linkage connected to the collective steering wheels are lifted or lowered according to the up and down motion between the collective steering wheels, and accordingly, the first bodies having the seventh fastening pins and the upper fastenings are respectively upwards. Alternatively, by moving downwards, the height of the swash plate connected through the control linkage is changed, and thus the helicopter can be easily controlled.

The bell crank assembly is fastened with the cyclic steering wheel and the collective steering wheel through the transmission linkage divided into a plurality of pieces so as to separately transmit the left, right, left, and right movements between the cyclic steering wheel and the up and down motion between the collective steering wheel. The front and rear, left and right and the lifting and lowering of the swash plate is controlled through the control linkage formed by the dog, and through this, it is possible to perform the forward, backward, left and right movement of the helicopter, respectively or simultaneously.

The first-first through hole, the first-second through hole, the first groove, and the first through-hole of the first body are formed at equal intervals on the same line, and the first body of the second body The 1-1 through hole, the second groove and the second through hole are also formed at equal intervals on the same line, and the 3-1 through hole, the third groove and the third-2 of the third body. The through-hole is also formed on the same line at equal intervals, it is characterized in that it is possible to stably transfer the front, rear, left and right movement between the cyclic control received through the transmission linkage to the control linkage in accordance with a set ratio.

The swash plate includes a low swash plate fixed to the main hub, and an upper swash plate rotatably installed on an upper portion of the low swash plate, wherein the low swash plate comprises: a low body; And a first row arm, a second row arm, and a third row arm formed outwardly from the circumferential surface of the row body, wherein a center of the first row arm and the second row arm are formed at the swash plate. It is formed at 120 degrees with respect to the center of the, the forward and backward movement between the cyclic control, the tilt ratio of the rotor blades in the front and rear direction is formed to 2: 1, characterized in that the stable helicopter control is possible.

According to the helicopter control device of the present invention as described above has the following advantages.

A cyclic control rod that controls the helicopter's forward, backward, left, and right directions, a collective control rod that controls the lift and lowering of the helicopter, a bell crank assembly that is interlocked through the cyclic control rod and the collective control rod, and the link crank assembly, and the bell crank assembly And a swash plate which is connected via a control linkage and tilts the rotor blades up, down, left, and right according to the operation of the bell crank assembly, wherein the bell crank assembly is moved back and forth between the cyclic controls. By converting the vertical movement between the left and right movements and the collective control into a vertical movement and transferring to the swash plate, it is possible to easily control the movement of the helicopter forward and backward, left and right and up and down, the operation between the cyclic control and the collective control Soft and circle It can be made.

The bell crank assembly may include a first body having a first through hole, a first through second hole, a first groove, and a first through third hole, and a first through fourth hole formed in the lower part thereof; The second body is installed so as to be slidable on one side of the first body, the second through-hole, the second through-hole is formed in the upper part, the second body formed with the second through-hole in the lower part, and the first body It is installed to be slidable on the other side of the 3-1 through-hole, the third groove and the 3-2 through-hole are formed in turn, the lower body and the third body is formed through the third through-hole and the third body, the third body A second through hole for penetrating the upper portion of the upper portion is formed at the bottom, the second lever is formed on one side and the second through hole is formed on the other side, the second lever is installed so as to slide outside the second body The 4-1 through hole, the 4-2 through hole, the fourth groove and the 4-3 through hole are sequentially formed in the upper portion, and the 4-4 tube in the lower portion. A ball is formed to be slidable on the outer side of the first casing and the third body, and the 5-1 through hole, the 5-2 through hole, the fifth groove and the 5-3 through hole are sequentially formed in the upper portion, and It includes a second casing 5-5 through-hole is formed, the 4-1 through hole, the 2-1 through hole, the 1-1 through hole, the 3-1 through hole and the fifth A first fastening pin for fastening the first through hole in order; the second through second hole, the second through hole and the first through hole, the second through hole, the second through hole, and the second through hole. A second fastening pin for fastening a third groove through the second through hole in order; the fourth groove, the second through second hole, the first through the second through hole, and the second through hole. A third fastening pin for fastening the fifth groove in order, a fourth fastening pin for fastening the fourth through hole, the first through third hole and the third through hole in order; The 4-4 through hole, the 2-3 through hole, image A fifth fastening pin for fastening the first through fourth through holes, the third through third through holes, and the fifth through fourth through holes, and through the second through third through third through holes; And a sixth fastening pin for fastening, and a seventh fastening pin for fastening the first b through hole and the second b through hole to facilitate assembly and disassembly of the crank assembly. Smooth and smooth operation between the click and collective controls.

The fifth fastening pin fastened through the transmission linkage connected to the cyclic steering wheel is pushed and pulled according to the front, rear, left and right movements between the cyclic steering wheel, and thus the first body having the fifth fastening pin and the lower part fastened. The front and rear of the swash plate connected via the control linkage changes as each moves forward or backward, the cyclic control between the cyclic control and the transmission linkage connected according to the left and right movement between the cyclic control The sixth fastening pin is pushed and pulled, and accordingly, the second body and the third body having the sixth fastening pin and the bottom fastened are moved forwards or backwards, respectively, so that the swash is connected through the control linkage. By changing the horizontal position of the plate, you can easily control the front, rear, left and right movement of the helicopter Characterized by a, it is possible to smoothly transfer the movement to form a precise line-up between the connecting rod and the transmission linkage to the control linkage.

The seventh fastening pins which are fastened through the transmission linkage connected to the collective steering wheels are lifted or lowered according to the up and down motion between the collective steering wheels, and accordingly, the first bodies having the seventh fastening pins and the upper fastenings are respectively upwards. Alternatively, by moving downwards, the height of the swash plate connected through the control linkage is changed, so that the ascending and descending of the helicopter can be easily controlled. You can move smoothly.

The bell crank assembly is fastened with the cyclic steering wheel and the collective steering wheel through the transmission linkage divided into a plurality of pieces so as to separately transmit the left, right, left, and right movements between the cyclic steering wheel and the up and down motion between the collective steering wheel. Through the control linkage formed by the dog to adjust the front and rear, left and right and the lifting and lowering of the swash plate, through which the helicopter can be carried out, respectively, or simultaneously, the left and right and up and down movement of the helicopter, to facilitate the helicopter control Can be.

The first-first through hole, the first-second through hole, the first groove, and the first through-hole of the first body are formed at equal intervals on the same line, and the first body of the second body The 1-1 through hole, the second groove and the second through hole are also formed at equal intervals on the same line, and the 3-1 through hole, the third groove and the third-2 of the third body. Through holes are also formed on the same line at equal intervals, it is possible to stably transmit the front, rear, left and right movements between the cyclic control received through the transmission linkage to the control linkage in accordance with a set ratio, to be stably controlled. Can be.

The swash plate includes a low swash plate fixed to the main hub, and an upper swash plate rotatably installed on an upper portion of the low swash plate, wherein the low swash plate comprises: a low body; And a first row arm, a second row arm, and a third row arm formed outwardly from the circumferential surface of the row body, wherein a center of the first row arm and the second row arm are formed at the swash plate. It is formed at 120 degrees with respect to the center of the, characterized in that during the forward and backward movement between the cyclic control, the inclination ratio of the rotor blade in the front and rear direction is formed to 2: 1, the helicopter can be controlled stably. .

1 is a schematic view according to a preferred embodiment of the present invention.
2 is a front perspective view of the bell crank assembly of FIG.
3 is a side perspective view of the bell crank assembly of FIG.
4 is a rear perspective view of the bell crank assembly of FIG.
5 is an assembled perspective view of the bell crank assembly of FIG.
6 is an exploded perspective view of the bell crank of FIG. 1.
FIG. 7 is a perspective view of the swash plate of FIG. 1. FIG.
8 is an exploded perspective view of FIG. 7;

Hereinafter, a preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings.

For reference, the same configuration as the prior art of the configuration of the present invention to be described below will be referred to the above-described prior art, and a detailed description thereof will be omitted.

1 is a schematic view according to a preferred embodiment of the present invention, Figure 2 is a front perspective view of the bell crank assembly of Figure 1, Figure 3 is a side perspective view of the bell crank assembly of Figure 1, Figure 4 is a bell crank of Figure 1 5 is an exploded perspective view of the bell crank assembly of FIG. 1, FIG. 6 is an exploded perspective view of the bell crank of FIG. 1, FIG. 7 is a perspective view of the swash plate of FIG. 1, and FIG. 7 is an exploded perspective view.

Helicopter control device of the present invention is located between the cyclic control rod (1) and the main hub (3) Bell crank assembly (2) for converting the rotational movement of the cyclic control rod (1) to linear movement, and the main It is installed on the hub (3) includes a swash plate (4) for moving the blade up, down, left and right according to the operation of the bell crank assembly (2).

The cyclic control panel 1 is located on the right side of the pilot and moves forward, backward, left and right, and determines the inclination of the swash plate 4 to change the inclination of the rotation surface of the main rotor blade to control the direction of the aerodynamic force and the direction of the helicopter. Adjust

The collective control panel 6 is located on the left side of the pilot so as to move up and down, thereby changing the relief of the blade to control the rise and fall of the helicopter.

The cyclic control rod 1 is connected to the first to fourth through holes 215 of the first body below the bell crank assembly 2 by a transmission linkage 5, and the collective control rod 6 is connected to the transmission linkage 5. ) Is connected to the first b through hole 242 of the first lever 24 of the bell crank assembly 2 and the second b through hole 252 of the second lever 25.

The bell crank assembly 2 is connected to one side of the headlink 8 by a control linkage 7, and the swash plate 4 on the other side of the headlink 8 by connecting rods 31, 32, 33. The bell crank assembly 2 plays the most important role in facilitating flight maneuverability in a rotary wing aircraft (helicopter) using two blades.

That is, the cyclic control rod 1 and the collective control rod 6 are interlocked with one side of the bell crank assembly 2 by a transmission linkage 5, and the other side of the bell crank assembly 2 is one side of the control linkage 7. The other side of the control linkage 7 is connected to one side of the head link 8, and the other side of the head link 8 is connected to the swash plate 4 by connecting rods 31, 32, 33. do. Thus, the cyclic control panel 1 and the collective control panel 6 are interlocked with the swash plate 4 to control the swash plate 4 according to the operation of the cyclic control panel 1 and the collective control panel 6. Will be.

The bell crank assembly 2 includes a first body 21, a first lever 24 provided on one side of the first body 21, and a second lever 25 provided on the other side of the first body 21. ), A second body 22 inserted into the first lever 24, and a third body 23 inserted into the second lever 25.

The first body 21 has an inverted triangle shape, the first through-hole 211, the first through-hole 212 formed on one side of the first through-hole 211 and It includes a first groove 213 formed on one side of the 1-2 through-hole 212, and a 1-3 through hole 214 formed on one side of the first groove 213. The first through-hole 215 is formed in the lower portion of the first body 21.

The distance between the center of the first through-hole 211, the 1-2 through-hole 212 and the first groove 213 and the 1-3 through-hole 214 is preferably equal intervals. That is, the ratio of the distance between the center of the first-first through hole 211, the second-through hole 212, and the first groove 213 and the first-third through hole 214 is 1: 1: 1. will be.

The 1-1 through-hole 211 of the first body 21 is the 2-1 through-hole 221 of the second body 22 to be described later and the 3-1 to the third body 23 to be described later. Located on the same line as the through-hole 231, the first-second through-hole 212 of the first body 21 is the first a through-hole 241 of the first lever 24 to be described later and the second to be described later. Located on the same line as the second a through hole 251 of the lever 25, the center of the first groove 213 of the first body 21 is the second through hole of the second body 22 to be described later. Reference numeral 223 and the third through-hole 233 of the third body 23 to be described later are located on the same line.

Fine grooves 216 are further formed on one side or the other side of the first body 21. The fine groove 216 has the advantage of reducing the weight of the bell crank assembly 2.

The first lever 24 is installed on one side of the first body 21 and has a '-' shape. A first a through hole 241 is formed at one side of the first lever 24, and a first b through hole 242 is formed at the other side of the first lever 24. A first through hole 243 is formed in the first lever 24 so as to penetrate from the upper part of the first lever 24 to the lower part, and a second body 22 to be described later is provided in the first through hole 243. Installed through.

The first a through hole 241 of the first lever 24 may include the second through hole 212 of the first body 21 and the second through hole 251 of the second lever 25 to be described later. Located on the same line. The first b through hole 242 of the first lever 24 is positioned on the same line as the second b through hole 252 of the second lever 25 to be described later, and the link 60 is connected to the collective steering wheel 6. Is installed.

The second lever 25 is installed on the other side of the first body 21 and has a '-' shape. A second a through hole 251 is formed at one side of the second lever 25, and a second b through hole 252 is formed at the other side of the second lever 25. A second through hole 253 is formed in the second lever 25 so as to penetrate from the upper part of the second lever 25 to the lower part, and the third body 23 to be described later is the second through hole 253. Installed through.

The second a through hole 251 of the second lever 25 is in the same line as the 1-2 through hole 212 of the first body 21 and the first a through hole 241 of the first lever 24. Located in The second b through hole 252 of the second lever 25 is positioned on the same line as the first b through hole 242 of the first lever 24, and the link 60 is installed to connect the collective control rod 6. do.

The second body 22 has an inverted triangular shape, and has a 2-1 through-hole 221 formed thereon, a second groove 222 formed at one side of the 2-1 through-hole 221, and It includes a second through-hole 223 formed on one side of the second groove 222. The second through-hole 224 is formed in the lower portion of the second body 22.

The second through-hole 221 of the second body 22 is the first through-hole 211 of the first body 21 and the third through-hole of the third body 23 to be described later. Located on the same line as 231, the center of the second groove 222 of the second body 22 is the first-second through-hole 212 of the first body 21 and the third body 23 to be described later. Located in the same line as the center of the third groove 232 of the second, the second through-hole 223 of the second body 22 and the center of the first groove 213 of the first body 21 It is located on the same line as the third through-hole 233 of the third body 23 to be described later. This second body 22 is the same as the third body 23 to be described later.

Fine grooves 225 are further formed on one side or the other side of the second body 22. The fine groove 225 has the advantage of reducing the weight of the bell crank assembly 2.

The third body 23 has an inverted triangular shape, and has a 3-1 through hole 231 formed thereon, a third groove 232 formed at one side of the 3-1 through hole 231, and It includes a third through-hole 233 formed on one side of the third groove (232). The third through-hole 234 is formed in the lower portion of the third body (23).

The 3-1 through-hole 231 of the third body 23 is the 1-1 through-hole 211 of the first body 21 and the 2-1 through-hole 221 of the second body 22. ) And the center of the third groove 232 of the third body 23 is the second through-hole 212 of the first body 21 and the second of the second body 22. Located on the same line as the center of the groove 222, the third through hole 234 of the third body 23 is the center and the second body of the first groove 213 of the first body 21 ( It is located on the same line as the 2-2 through-hole 223 of 22). This third body 23 is the same as the second body 22.

Fine grooves 235 are further formed on one side or the other side of the third body 23. The fine groove 235 has the advantage of reducing the weight of the bell crank assembly 2.

The material of the bell crank assembly 2 is made of aluminum, and grooves 216 and 225 are formed at the front or rear of the bell crank assembly 2 to reduce the cost of parts by reducing the weight of the product.

Casings 25 and 26 are further provided on the outside of the bell crank assembly 2 to prevent breakage of the bell crank assembly 2. The casings 25 and 26 include a first casing 26 provided outside the second body 22 and a second casing 27 provided outside the third body 23.

The first casing 26 is installed to be slidable on the outside of the second body 22, and has a 4-1 through-hole 261, a 4-2 through-hole 262, and a fourth in the upper portion thereof. The groove 263 and the fourth through hole 264 are sequentially formed, and the fourth through fourth hole 265 is formed at the lower portion thereof.

The second casing 27 is installed to be slidable on the outside of the third body 23, and has a 5-1 through-hole 271, a 5-2 through-hole 272, and a fifth on the top thereof. The grooves 273 are sequentially formed, and the fifth through fourth holes 275 are formed in the lower portion thereof.

The first body 21, the second body 22, the third body 23, the first lever 24, the second lever 25, the first casing 26 and the first body The two casings 27 are fastened by a plurality of fastening pins 210, 220, 230, 240, 250, 260 and 270. The plurality of fastening pins 210, 220, 230, 240, 250, 260 and 270 may include a first fastening pin 210, a second fastening pin 220, a third fastening pin 230, a fourth fastening pin 240 and a fifth fastening pin ( 250, a sixth fastening pin 260, and a seventh fastening pin 270.

The first fastening pin 210, the 4-1 through-hole 261 of the first casing 26, the 2-1 through-hole 221 of the second body 22 and the first 1-1 through-hole 211 of one body 21, 3-1 through hole 231 of said third body 23, and 5-1 through hole of said second casing 27 Tighten 271 in order. A first head link 81 is connected to one side of the first fastening pin 210, and a third head link 83 is connected to the other side of the first fastening pin 210.

The second fastening pin 220 has a second through hole 262 of the first casing 26, a second groove 222 of the second body 22, and the first lever 24. 1a through hole 241 of the first body, the first through hole 212 of the first body 21, the second through hole 251 and the third body of the second lever 25 The third groove 232 of 23 and the second through-hole 272 of the second casing 27 are fastened in order. A second head link 82 is connected to the second fastening pin 220, and the second head link 82 is positioned at the center of the first head link 81 and the third head link 83. do.

The third fastening pin 230 includes a fourth groove 263 of the first casing 26, a second through-hole 223 of the second body 22, and the first body ( The first groove 213 of 21, the third through-hole 233 of the third body 23, and the fifth groove 273 of the second casing 27 are sequentially fastened. .

The fourth fastening pin 240 is the fourth through hole 264 of the first casing 26, the first through third hole 214 of the first body 21, and the first 2-5 through-holes 274 of the casing 27 are sequentially fastened.

The fifth fastening pins 250 may include the fourth through fourth holes 265 of the first casing 26, the first through fourth holes 215 of the first body 21, and the fourth fourth through holes 265 of the first body 21. 2-5 through-hole 275 of the casing 27 is fastened in order. The fifth fastening pin 250 is connected to the delivery linkage to interlock the cyclic steering wheel 1 and the collective steering wheel 6. In addition, the fifth fastening pin 250 transfers the forward, backward, left and right movements between the cyclic controls received through the transfer linkage to the control linkage 7 according to a set ratio to control the vertical movement of the swash plate 4. Done.

The sixth fastening pin 260 fastens through the second through third hole 224 of the second body 22 and the third through third hole 234 of the third body 23.

The seventh fastening pin 270 is fastened through the first b through hole 242 and the second b through hole 252 of the first lever 24. The seventh fastening pin 270 is connected to the collective steering wheel 6 so as to be connected to the collective steering wheel 6 so as to interlock the collective steering wheel 6 and the cyclic steering wheel 1. In addition, the seventh fastening pin 270 controls the rotational movement of the swash plate 4 by transferring the up and down motion of the collective steering wheel 6 to the control linkage 7.

One side of the bell crank assembly (2) is installed interlocking the cyclic control rod (1) and the collective control rod (6), the control linkage (7) is installed on the other side of the bell crank assembly (2), the control linkage (7) Is connected to the headlink 8. Head link (8) is installed in the main hub (3), the shaft is installed so as to face upward from the center of the main hub (3), the head link (8) is fixed to the shaft, the upper end of the shaft Sea plate 4 is installed.

The control linkage 7 includes a first control linkage 71, a second control linkage 72, and a third control linkage 73. One side of the first control linkage 71 is connected to the first fastening pin 210, and the other side of the first control linkage 71 is connected to a first head link 81 to be described later. One side of the second control linkage 72 is connected to the second fastening pin 220, and the other side of the second control linkage 72 is connected to a second head link 82 to be described later. One side of the third control linkage 73 is connected to the first fastening pin 210, and the other side of the third control linkage 73 is connected to a third head link 83 to be described later.

The headlink 8 is installed in the main hub 3 and includes a first headlink 81, a second headlink 82, and a third headlink 83. One side of the first head link 81 is connected to the other side of the first control linkage 71, and the other side of the first head link 81 is connected to the first connecting rod 31. One side of the second head link 82 is connected to the other side of the second control linkage 72, and the other side of the second head link 82 is connected to the second connecting rod 32. One side of the third head link 83 is connected to the other side of the third control linkage 73, and the other side of the third head link 83 is connected to the third connecting rod 33. In other words, the bell crank assembly 2 is connected to the swash plate 4 by the head link 8 and the connecting rods 31, 32, 33.

 The swash plate 4 includes a low swash plate 41 fixed to the main hub 3 and an upper swash plate 42 installed to be rotatable on an upper portion of the low swash plate 41. do.

The low swash plate 41 is fixed to the upper end of the shaft installed in the main hub 3 by the first connecting rod 31. The low swash plate 41 includes an upper body 440 and upper arms 450 and 460 protruding outward from the circumferential surface of the upper body 440.

The upper body 440 has a ring shape and allows the protrusion 430 of the upper swash plate 42 to be described later to be inserted. The inner diameter of the upper body 440 is preferably larger than the outer diameter of the protrusion 430 of the upper swash plate 42 to be described later.

Upper arms 450 and 460 are formed on the circumferential surface of the upper body 440. The upper arms 450 and 460 protrude outward from the circumferential surface of the upper body 440 and include a first upper arm 450 and a second upper arm 460. The first upper arm 450 and the second upper arm 460 are formed in a pair, and the center between the first upper arm 450 and the second upper arm 460 is the upper body 440. Coordinate with the central axis of). Four upper arms 450 and 460 are formed to form an angle of 90 degrees.

Holes 451 are formed in the upper arms 450 and 460, and the first connecting rod 30 is connected to the holes 451. One side of the first connecting rod 30 is fixed to the shaft, and the other side of the first connecting rod 30 is fixed to the holes 451 of the upper arms 450 and 460.

The upper swash plate 42 is positioned to rotate above the low swash plate 41, and includes a row body 410, row arms 410a, 410b, 410c, and a protrusion 430.

The row body 410 has a ring shape, and a protrusion 430 is formed to protrude downward from a lower end. The protrusion 430 is rotatably inserted into the hole 451 of the upper body 440. The outer diameter of the protrusion 430 is configured to be smaller than the outer diameter of the upper body 440.

Row arms 410a, 410b, and 410c are formed on the outer circumferential surface of the row body 410. The row arms 410a, 410b, and 410c protrude outward from the circumferential surface of the row body 410, and have a first row arm 410a, a second row arm 410b, and a third row arm 410c. ).

The first low arm 410a includes a first-first low arm 411 and a first-second low arm 412. The first-first low arm 411 and the first-second low arm 412 are formed to face each other, and the first-first low arm 411 penetrates from one side to the other side 1- It includes a first hole 4110, and the first-second low arm 412 includes a first-second hole 4120 formed to penetrate from one side to the other side, the first-first hole 4110 The central axis of and the central axis of the first-second hole 4120 are located on the same line. The drive 40 is installed in the first-first hole 4110 and the first-second hole 4120. The drive 40 connects the first low arm 410a and the rotor blade.

The first low arm 410a is formed to form 120 degrees with the second low arm 410b to be described later, and is formed to form 120 degrees with the third low arm 410c to be described later. Thus, when the swash plate 4 is rotated stably, there is an advantage that the operation can be smooth and easy.

The second low arm 410b includes a 2-1 low arm 413 and a 2-2 low arm 414. The 2-1 low arm 413 and the 2-2 low arm 414 are formed to face each other, and the 2-1 low arm 413 penetrates from one side to the other side 2- It includes a one-hole 4130, the second-2 low arm 414 includes a second-2 hole (4140) formed to penetrate from one side to the other side, the second-first hole (4130) The central axis of and the central axis of the second-2 hole 4140 are located on the same line. The drive 40 is installed in the second-first hole 4130 and the second-second hole 4140. The drive 40 connects the second low arm 410b and the rotor blade.

The second low arm 410b is formed to form 120 degrees with the first low arm 410a, and is formed to form 120 degrees with the third low arm 410c to be described later. Thus, when the swash plate 4 is rotated stably, there is an advantage that the operation can be smooth and easy.

The third low arm 410c includes a 3-1 low arm 415 and a 3-2 low arm 416. The 3-1 low arm 415 and the 3-2 low arm 416 are formed to face each other, and the 3-1 low arm 415 penetrates from one side to the other side 3- It includes one hole (4150), the third-2 low arm (416) includes a third-second hole (4160) formed to penetrate from one side to the other side, the third-first hole (4150) The central axis of and the central axis of the third-2 hole 4160 are located on the same line. The drive 40 is installed in the 3-1 th hole 4150 and the 3-2 th hole 4160. The drive 40 connects the third low arm 410c and the rotor blade.

The center of the first low arm 410a and the formation angle of the second low arm 410b are formed at a 120 degree angle with respect to the center of the swash plate 41. The tilt ratio of the rotor blades in the forward and backward directions is 2: 1, so that the helicopter can be stably operated.

Hereinafter, the operation of the present embodiment having the above-described configuration will be described.

The pitch of the cyclic steering wheel 1 and the collective steering wheel 6 is controlled.

The bell crank assembly 2 converts the rotational movements of the steering wheels 1 and 6 into linear movements and transmits them to the swash plate 4.

The rotor blades move forward, backward, left and right.

As described above, although described with reference to a preferred embodiment of the present invention, those skilled in the art various modifications or variations of the present invention without departing from the spirit and scope of the invention described in the claims below Can be carried out.

As described above, the helicopter according to the present invention is particularly suitable for a helicopter, a rotorcraft, an unmanned aerial vehicle to which a bell crank assembly and a swash plate are applied.

1: cyclic control stick 2: bell crank assembly
21: Body 1 211: Through 1-1
212: through 1-2 213: first groove
214: 1-3 through hole 215: 1-4 through hole
216: Fine Home 22: Second Body
221: 2-1 through-hole 222: second groove
223: 2-2 through hole 224: 2-3 through hole
225: Fine Home 23: Third Body
231: 3-1 through-hole 232: third groove
233: through 3-2 through 234: through 3-3 through
235: fine home 24: first lever
241: first a through hole 242: first b through hole
243: first passage 25: second lever
251: Through 2a through 252: Through 2b through
253: second opening 26, 27: casing
26: first casing 261: 4-1 through hole
262: 4-2 through hole 263: fourth groove
264: 4-4 through hole 265: 4-4 through hole
27: 2nd casing 271: 5-1 through-hole
272: 5-2 through hole 273: fifth groove
274: Through 5-3 through 275: Through 5-4 through
210: first fastening pin 220: second fastening pin
230: third fastening pin 240: fourth fastening pin
250: fifth fastening pin 260: sixth fastening pin
270: fastening pin 3: main hub
31: first connecting rod 32: second connecting rod
33: third connecting rod 4: swash plate
41: upper swash plate 440: upper body
450,460: upper arm 450: first upper arm
460: second upper arm 451: hole
42: low swash plate 410: low body
410a, 410b, 410c: low arm 410a: first low arm
411: 1-1 low arm 4110: 1-1 hole
412: 1-2th lower arm 4120: 1-2th hole
410b: 2nd low arm 413: 2-1 low arm
4130: 2-1st hole 414: 2-2 low arm
4140: second-2 holes 410c: third low arm
415: 3-1 low arm 4150: 3-1 hole
416: 3-2 low arm 4160: 3-2 holes
430: protrusion 40: drive
5: Forward Linkage 6: Collective Control
7: Control linkage 71: First control linkage
72: second control linkage 73: third control linkage
8: headlink 81: first headlink
82: second headlink 83: third headlink

Claims (7)

A cyclic control rod that controls the forward, backward, left, and right directions of the helicopter;
A collective joystick that controls the rise and fall of the helicopter;
A bell crank assembly interlocked with the cyclic steering wheel and the collective steering wheel via a delivery linkage;
A swash plate is connected to the bell crank assembly through a control linkage and allows the rotor blade to tilt up and down, left and right according to the operation of the bell crank assembly.
The bell crank assembly converts the up, down, left and right movements between the cyclic controls and the up and down movements between the collective controls into vertical movements and transfers them to the swash plate so that the cranks can be easily controlled back and forth, left and right movements of the helicopter,
The bell crank assembly,
The first body through the first through-hole, the 1-2 through-hole, the first groove and the 1-3 through-hole are formed in the upper portion, the first body formed with the first through-hole through the lower part,
It is installed to be slidable on one side of the first body, the second through-hole, the second through-hole is formed in the second, the second through-hole is formed in the bottom, the second through-hole is formed, the second through-hole A second body having a second groove formed at one side thereof;
A third body which is installed to be slidable on the other side of the first body, in which a 3-1 through hole, a third groove and a 3-2 through hole are formed in sequence, and a third body through which a third through hole is formed;
A first lever having a first through hole configured to receive a portion of the upper portion of the second body therein and having a first a through hole at one side thereof and a first b through hole at the other side thereof;
A second lever having a second through hole configured to penetrate a portion of the upper part of the third body therein and having a second a through hole at one side thereof and a second b through hole at the other side thereof;
It is installed to be slidable on the outside of the second body, and the 4-1 through hole, the 4-2 through hole, the fourth groove and the 4-3 through hole are formed in the upper portion, the lower through the 4-4 through A first casing in which a ball is formed and
It is installed to be slidable on the outside of the third body, and the 5-1 through hole, the 5-2 through hole, the fifth groove and the 5-3 through hole are sequentially formed in the upper portion, and the 5-4 through the lower portion. A ball formed second casing,
A first fastening pin for fastening the 4-1 through hole, the 2-1 through hole, the 1-1 through hole, the 3-1 through hole, and the 5-1 through hole in order; ,
Fastening the second through hole, the second groove and the first a through hole, the second through hole, the second through hole and the third through hole, and the fifth through hole in order. The second fastening pin,
A third fastening pin for fastening the fourth groove, the second-2 through hole, the first groove, the third-2 through hole, and the fifth groove in order;
A fourth fastening pin for fastening the fourth through hole, the third through hole, and the fifth through hole in order;
A fifth fastening pin for fastening the fourth through hole, the first through fourth hole, and the fifth through fourth hole in order;
A sixth fastening pin for fastening the second through hole and the third through hole;
And a seventh fastening pin configured to fasten the first b through hole and the second b through hole. delete The method of claim 1,
The fifth fastening pin pushed and pulled through the transmission linkage connected to the cyclic steering rod is pushed and pulled according to the front, rear, left and right movements of the cyclic steering rod.
Accordingly, the front and rear horizontal states of the swash plate connected through the control linkage are changed as the first body coupled to the fifth fastening pin and the lower portion moves forward or backward, respectively.
The sixth fastening pin connected through the cyclic control rod and the transmission linkage is pushed and pulled according to the left and right movement between the cyclic control rod,
Accordingly, as the second body and the third body having the sixth fastening pin and the lower portion fastened to the front or the rear, respectively, the horizontal state of the left and right of the swash plate connected through the control linkage is changed,
Helicopter control device, characterized in that the helicopter can easily control the front, rear, left and right movement. The method of claim 1,
According to the up and down movement between the collective control, the seventh fastening pin which is fastened through the transfer linkage connected to the collective steering wheel is raised or lowered,
Accordingly, as the seventh fastening pin and the first body coupled to the upper portion move upward or downward, respectively, the height state of the swash plate connected through the control linkage is changed to easily control the lifting and lowering of the helicopter. Helicopter control device which can be. The method of claim 1,
The bell crank assembly,
It is fastened to the cyclic steering wheel and the collective steering wheel through the transmission linkage divided into a plurality so that each of the forward and left and right movement between the cyclic steering wheel and the vertical movement between the collective steering wheel can be transmitted separately.
Through the control linkage formed of a plurality of front and rear, left and right and the rising and falling of the swash plate,
Helicopter control device characterized in that it can perform the forward, rear, left and right movement of the helicopter, respectively, or simultaneously. The method of claim 1,
The first-first through hole, the first-second through hole, the first groove, and the first through-hole of the first body are formed at equal intervals on the same line,
The second through-hole, the second groove and the second through-hole of the second body are also formed on the same line at equal intervals,
The third through-hole, the third groove and the third through-hole of the third body are also formed on the same line at equal intervals,
Helicopter control device, characterized in that the forward and backward movement between the cyclic control received through the transmission linkage can be stably transmitted to the control linkage according to a set ratio. The method of claim 1,
The swash plate,
A low swash plate and an upper swash plate rotatably installed on top of the low swash plate,
The low swash plate,
A row body, a first row arm, a second row arm, and a third row arm formed outwardly from a circumferential surface of the row body;
The angle of forming the center of the first low arm and the second low arm is formed at an angle of 120 degrees with respect to the center of the swash plate. Helicopter control device characterized in that the 2: 1 is formed to be a stable helicopter control.

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