CN219651376U - Helicopter fin buffer stop - Google Patents

Abstract

The utility model relates to the technical field of helicopters, and discloses a helicopter tail wing anti-collision device, which comprises a horizontal tail, wherein vertical tails are respectively fixedly arranged at the front side and the rear side of the horizontal tail; the bottom of the vertical tail is provided with a protection component; a connecting component is arranged between the protection component and the vertical tail; the guard assembly includes: a protective part; the protection part is arranged below the vertical tail; a buffer part is arranged in the protective part; an auxiliary part is arranged at the bottom of the buffer part; the connection assembly includes: a connection part; the connecting part is arranged at the bottom of the vertical tail; the connecting part is provided with a locking part. This helicopter fin buffer stop can carry out buffer protection to the fin through the protective component who sets up, can protect the damage that the fin touches the ground and lead to a certain extent, is convenient for carry out the dismouting to protective component through the coupling assembling who sets up to conveniently pull down maintenance or change it when protective component suffers to destroy.

Description

Helicopter fin buffer stop

Technical Field

The utility model relates to the technical field of helicopters, in particular to a helicopter tail wing anti-collision device.

Background

Helicopter tail rotor is a component used to balance reactive torque and to steer the helicopter in heading. The tail lifting surface mainly comprises a horizontal stabilizer (for short, a horizontal tail) and a vertical stabilizer (for short, a vertical tail). The horizontal tail can improve the attack angle stability of the helicopter, and the vertical tail can streamline the tail rotor bracket, so that the power required by the helicopter is reduced.

For example, "a helicopter vertical and horizontal tail structure and helicopter" with publication number of "CN210027878U" comprises a horizontal tail and a vertical tail, wherein the vertical tail is arranged at two ends of the horizontal tail through vertical tail connecting pieces, and tail beam connecting pieces are arranged on the upper surface of the horizontal tail. The interference to the tail rotor can be avoided, the tail rotor efficiency is effectively improved, the tail rotor installation space is saved, and the overall flight stability of the helicopter is improved.

However, the vertical tail of a helicopter is usually made of composite materials, and the tail is usually positioned at the tail end of the helicopter, so that the danger of the tail touching the ground during movement or low-altitude maneuver is easy to occur, and therefore, a certain protection or buffer device is required in terms of impact resistance.

Disclosure of Invention

(one) solving the technical problems

Aiming at the defects of the prior art, the utility model provides a helicopter tail wing anti-collision device. The protective device has the advantages that the protective device can buffer and protect the tail wing, and damage caused by the ground contact of the tail wing can be protected to a certain extent.

(II) technical scheme

In order to achieve the above purpose, the present utility model provides the following technical solutions: a helicopter tail wing anti-collision device comprises a horizontal tail,

the front side and the rear side of the horizontal tail are respectively and fixedly provided with a vertical tail;

the bottom of the vertical tail is provided with a protection component; the number of the protection components is two, and the two groups of the protection components are respectively arranged below the two vertical tails; a connecting component is arranged between the protection component and the vertical tail; the number of the connecting components is two, and the two groups of connecting components are respectively arranged at the bottoms of the two vertical tails; the guard assembly includes: a protective part; the protection part is arranged below the vertical tail; a buffer part is arranged in the protective part; an auxiliary part is arranged at the bottom of the buffer part; the connection assembly includes: a connection part; the connecting part is arranged at the bottom of the vertical tail; the connecting part is provided with a locking part.

Preferably, the guard portion includes: a housing; the shell is arranged below the vertical tail; damping pads are adhered to the inner walls of the periphery of the shell; the inner wall sliding connection of damping pad has the movable plate.

Preferably, the buffer part includes: a rubber block; the number of the rubber blocks is two, and the two rubber blocks are respectively and fixedly connected to the inner wall of the top of the shell; the bottoms of the two rubber blocks are fixedly connected with buffer springs I respectively; the bottom ends of the two buffer springs I are fixedly connected with the top of the moving plate; a fixed rod is fixedly connected between the two rubber blocks; the outer wall of the fixed rod is movably sleeved with two sliding sleeves; the opposite surfaces of the two rubber blocks are respectively and fixedly connected with a second buffer spring, and the opposite ends of the second buffer springs are respectively and fixedly connected with one sides, far away from each other, of the two sliding sleeves; the outer walls of the two sliding sleeves are respectively hinged with a hinged rod and are oppositely arranged; the other ends of the two hinging rods are hinged with the top center point of the moving plate; the number of the buffer parts is two, and the two buffer parts are respectively arranged at the front side and the rear side of the center point of the inner wall of the top of the shell.

Preferably, the auxiliary portion includes: an anti-collision rod; the anti-collision rod is fixedly connected to the bottom of the moving plate; the anti-collision rod is designed in a large radian way, and the anti-collision rod is made of a material with good toughness, so that the anti-collision rod can play a role in buffering and collision prevention when the tail wing is about to touch the ground; the other end of the anti-collision rod extends to the lower part of the shell; the other end of the anti-collision rod is fixedly connected with a blocking cap through a rivet.

Preferably, the connection part includes: a fixing plate; the fixed plate is fixedly connected to the bottom of the vertical tail; a connecting plate is arranged on the right side of the fixed plate; the bottom of the connecting plate is fixedly connected with the top of the shell; two through holes are formed in the left sides of the fixing plate and the connecting plate; the number of the connecting parts is two, and the two connecting parts are respectively and oppositely arranged at the left side and the right side of the center line point at the top of the shell.

Preferably, the locking part includes: a locking bolt; the number of the locking bolts is two, and the two locking bolts are respectively inserted into through holes on the fixing plate and the connecting plate; nuts are respectively connected with the outer walls of the two locking bolts in a threaded manner, and the left sides of the two nuts are respectively abutted with the right side of the connecting plate; the number of the locking parts is two, and the two locking parts are respectively and oppositely arranged on the two connecting parts.

(III) beneficial effects

Compared with the prior art, the utility model provides the helicopter tail wing anti-collision device, which has the following beneficial effects:

1. this helicopter fin buffer stop can carry out buffering protection to the fin through the protective component who sets up, can protect the fin to a certain extent to touch the destruction that the ground leads to.

2. This helicopter fin buffer stop is convenient for carry out the dismouting to the protective component through the coupling assembling that sets up to conveniently tear down maintenance or change it when the protective component suffered to destroy.

Drawings

The accompanying drawings are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate the utility model and together with the embodiments of the utility model, serve to explain the utility model. In the drawings:

FIG. 1 is a perspective view of the present utility model;

FIG. 2 is an enlarged view of the utility model at A;

fig. 3 is a schematic view of the internal structure of the housing of the present utility model.

In the figure: 1. a horizontal tail; 2. a vertical tail; 3. a protective assembly; 4. a connection assembly; 5. a protective part; 51. a housing; 52. a damping pad; 53. a moving plate; 6. a buffer section; 61. a rubber block; 62. a buffer spring I; 63. a fixed rod; 64. a sliding sleeve; 65. buffer spring II; 66. a hinge rod; 7. an auxiliary part; 71. an anti-collision rod; 72. a blocking cap; 8. a connection part; 81. a fixing plate; 82. a connecting plate; 9. a locking part; 91. a locking bolt; 92. and (5) a screw cap.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments.

Example 1

As shown in fig. 1-3, the utility model provides a helicopter tail collision avoidance device, which comprises a horizontal tail 1, wherein vertical tails 2 are respectively fixedly arranged at the front side and the rear side of the horizontal tail 1; the bottom of the vertical fin 2 is provided with a protection component 3; the number of the protection components 3 is two, and the two groups of the protection components 3 are respectively arranged below the two vertical tails 2; the guard assembly 3 comprises: a guard 5; the protection part 5 is arranged below the vertical tail 2; a buffer part 6 is arranged in the protective part 5; the bottom of the buffer part 6 is provided with an auxiliary part 7; the guard 5 includes: a housing 51; the outer shell 51 is arranged below the vertical tail 2; the housing 51 is hollow inside and open at the bottom; damping pads 52 are adhered to the inner walls of the periphery of the housing 51; the inner wall of the damping pad 52 is slidably connected with a moving plate 53; the buffer section 6 includes: a rubber block 61; the number of the rubber blocks 61 is two, and the two rubber blocks 61 are respectively fixedly connected to the top inner wall of the shell 51; the bottoms of the two rubber blocks 61 are fixedly connected with a buffer spring I62 respectively; the bottom ends of the first buffer springs 62 are fixedly connected with the top of the moving plate 53; a fixed rod 63 is fixedly connected between the two rubber blocks 61; the outer wall of the fixed rod 63 is movably sleeved with two sliding sleeves 64; the opposite surfaces of the two rubber blocks 61 are respectively fixedly connected with a second buffer spring 65, and the opposite ends of the second buffer springs 65 are respectively fixedly connected with one sides of the two sliding sleeves 64 which are far away from each other; the outer walls of the two sliding sleeves 64 are respectively hinged with a hinge rod 66 and are oppositely arranged; the other ends of the two hinge rods 66 are hinged with the top center point of the moving plate 53; the number of the buffer parts 6 is two, and the two groups of buffer parts 6 are respectively arranged on the front side and the rear side of the center point of the inner wall of the top of the shell 51; the auxiliary unit 7 includes: an impact beam 71; the bumper bar 71 is fixedly connected to the bottom of the moving plate 53; the anti-collision rod 71 is designed in a large radian way, and the anti-collision rod is made of a material with good toughness, so that the anti-collision rod can play a role in buffering and collision prevention when the tail wing is about to touch the ground; the other end of the impact beam 71 extends below the housing 51; the other end of the anti-collision rod 71 is fixedly connected with a blocking cap 72 through a rivet; the anti-collision rod 71 plays an auxiliary buffering role, meanwhile, when the anti-collision rod 71 touches the ground, an upward force is generated, the anti-collision rod 71 jacks up the moving plate 53, the peripheral outer wall of the moving plate 53 moves along the inner wall of the damping pad 52, meanwhile, the damping pad 52 generates a friction force on the moving plate 53, the damping pad 52 buffers the force generated by the moving plate 53, meanwhile, the first buffer spring 62 compresses the first buffer spring 62 when the moving plate 53 moves upwards, the first buffer spring 62 presses the rubber block 61, simultaneously, the force applied to the moving plate 53 is buffered under the action of the elastic force of the first buffer spring 62, meanwhile, the moving plate 53 drives the two hinging rods 66 to rotate around hinging points respectively when moving, so that the two hinging rods 66 respectively drive the two sliding sleeves 64 to slide along the outer wall of the fixed rod 63 in opposite directions, the two sliding sleeves 64 respectively compress the second buffer spring 65, meanwhile, the second buffer spring 64 generates a reverse acting force under the elastic force of the second buffer spring 65, the force on the moving plate 53 again buffers the force applied to the moving plate 53, and accordingly, the two sliding sleeves can be damaged to a certain extent when the tail 2 touches the ground, and the tail fin can be protected.

In this embodiment, the protection component 3 can buffer and protect the tail wing, so as to protect the damage caused by the ground contact of the tail wing to a certain extent.

Example 2

As shown in fig. 1-3, on the basis of embodiment 1, the present utility model provides a technical solution: preferably, a connecting component 4 is arranged between the protective component 3 and the vertical tail 2; the number of the connecting components 4 is two, and the two groups of connecting components 4 are respectively arranged at the bottoms of the two vertical tails 2; the connection assembly 4 includes: a connection section 8; the connecting part 8 is arranged at the bottom of the vertical tail 2; the connecting part 8 is provided with a locking part 9; the connection portion 8 includes: a fixing plate 81; the fixing plate 81 is fixedly connected to the bottom of the vertical fin 2; the right side of the fixing plate 81 is provided with a connecting plate 82; the bottom of the connecting plate 82 is fixedly connected with the top of the shell 51; two through holes are formed in the left sides of the fixing plate 81 and the connecting plate 82; the number of the connecting parts 8 is two, and the two groups of connecting parts 8 are respectively and oppositely arranged at the left side and the right side of the top central line point of the shell 51; the locking portion 9 includes: a lock bolt 91; the number of the locking bolts 91 is two, and the two locking bolts 91 are respectively inserted into through holes on the fixing plate 81 and the connecting plate 82; nuts 92 are respectively connected with the outer walls of the two locking bolts 91 in a threaded manner, and the left sides of the two nuts 92 are respectively abutted with the right side of the connecting plate 82; the number of the locking parts 9 is two, and the two groups of locking parts 9 are respectively and oppositely arranged on the two groups of connecting parts 8; the shell 51 can be detached from the vertical tail 2 by rotating the nut 92 to separate from the locking bolt 91 and then removing the locking bolt 91 from the through holes in the fixing plate 81 and the connecting plate 82, so that the protection assembly 3 can be conveniently detached for maintenance or replacement when being damaged.

In this embodiment, the protection component 3 is conveniently disassembled and assembled through the connecting component 4, so that the protection component 3 is convenient to disassemble and repair or replace when damaged.

The working principle of the helicopter tail collision avoidance device is specifically described below.

When the vertical fin 2 is about to touch, as shown in fig. 1-3, the anti-collision rod 71 is firstly contacted with the ground, the anti-collision rod 71 plays an auxiliary buffering role through the arrangement, meanwhile, an upward force is generated when the anti-collision rod 71 touches the ground, the anti-collision rod 71 props up the moving plate 53, the peripheral outer wall of the moving plate 53 moves along the inner wall of the damping pad 52, the damping pad 52 generates a friction force on the moving plate 53, the damping pad 52 buffers the force generated by the moving plate 53, the first buffer spring 62 is compressed when the moving plate 53 moves upwards, the first buffer spring 62 presses the rubber block 61, the force received by the moving plate 53 is buffered under the elastic force of the first buffer spring 62, and meanwhile, the two hinge rods 66 are respectively driven to rotate around hinge points when the moving plate 53 moves, so that the two hinging rods 66 respectively drive the two sliding sleeves 64 to slide along the outer wall of the fixed rod 63 in opposite directions, so that the two sliding sleeves 64 respectively compress the two buffer springs II 65, and simultaneously, a reverse acting force is generated on the sliding sleeves 64 under the action of the self elasticity of the buffer springs II 65, so that the force applied to the movable plate 53 is buffered again, the function of buffering and anti-collision can be achieved when the vertical tail 2 is about to touch, the locking bolt 91 is separated by rotating the nut 92, then the locking bolt 91 is taken down from the through holes in the fixed plate 81 and the connecting plate 82, and the shell 51 can be detached from the vertical tail 2, so that the protection assembly 3 is convenient to detach, repair or replace when being damaged.

Claims (6)

1. A helicopter tail wing anti-collision device comprises a horizontal tail (1),

the front side and the rear side of the horizontal tail (1) are respectively and fixedly provided with a vertical tail (2);

the bottom of the vertical fin (2) is provided with a protection component (3); a connecting component (4) is arranged between the protection component (3) and the vertical tail (2); the method is characterized in that: the protective assembly (3) comprises: a protection part (5); the protection part (5) is arranged below the vertical tail (2); a buffer part (6) is arranged in the protective part (5); an auxiliary part (7) is arranged at the bottom of the buffer part (6); the connection assembly (4) comprises: a connection part (8); the connecting part (8) is arranged at the bottom of the vertical fin (2); the connecting part (8) is provided with a locking part (9).

2. A helicopter tail collision avoidance device as claimed in claim 1 wherein: the guard (5) comprises: a housing (51); the shell (51) is arranged below the vertical tail (2); damping pads (52) are adhered to the inner walls of the periphery of the shell (51); the inner wall of the damping pad (52) is connected with a moving plate (53) in a sliding manner.

3. A helicopter tail collision avoidance device as claimed in claim 1 wherein: the buffer section (6) includes: a rubber block (61); the number of the rubber blocks (61) is two, and the two rubber blocks (61) are respectively fixedly connected to the inner wall of the top of the shell (51); the bottoms of the two rubber blocks (61) are fixedly connected with buffer springs I (62) respectively; the bottom ends of the first buffer springs (62) are fixedly connected with the top of the movable plate (53); a fixed rod (63) is fixedly connected between the two rubber blocks (61); the outer wall of the fixed rod (63) is movably sleeved with two sliding sleeves (64); the opposite surfaces of the two rubber blocks (61) are respectively and fixedly connected with a second buffer spring (65), and the opposite ends of the two buffer springs (65) are respectively and fixedly connected with one sides of the two sliding sleeves (64) which are far away from each other; the outer walls of the two sliding sleeves (64) are respectively hinged with a hinged rod (66) and are oppositely arranged; the other ends of the two hinge rods (66) are hinged with the top center point of the movable plate (53).

4. A helicopter tail collision avoidance device as claimed in claim 1 wherein: the auxiliary unit (7) comprises: an anti-collision rod (71); the anti-collision rod (71) is fixedly connected to the bottom of the moving plate (53); the other end of the anti-collision rod (71) is fixedly connected with a blocking cap (72) through a rivet.

5. A helicopter tail collision avoidance device as claimed in claim 1 wherein: the connection part (8) includes: a fixing plate (81); the fixing plate (81) is fixedly connected to the bottom of the vertical fin (2); a connecting plate (82) is arranged on the right side of the fixed plate (81); the bottom of the connecting plate (82) is fixedly connected with the top of the shell (51); two through holes are formed in the left sides of the fixing plate (81) and the left side of the connecting plate (82).

6. A helicopter tail collision avoidance device as claimed in claim 1 wherein: the locking part (9) comprises: a lock bolt (91); the number of the locking bolts (91) is two, and the two locking bolts (91) are respectively inserted into through holes on the fixing plate (81) and the connecting plate (82); the outer walls of the two locking bolts (91) are respectively connected with nuts (92) in a threaded mode, and the left sides of the two nuts (92) are abutted to the right side of the connecting plate (82).