CN217893227U

CN217893227U - Automatic inclinator structure of helicopter

Info

Publication number: CN217893227U
Application number: CN202222110687.7U
Authority: CN
Inventors: 孙志武
Original assignee: Shanghai Zhehang Helicopter Technology Co Ltd
Current assignee: Shanghai Zhehang Helicopter Technology Co Ltd
Priority date: 2022-08-11
Filing date: 2022-08-11
Publication date: 2022-11-25
Anticipated expiration: 2032-08-11

Abstract

The utility model relates to a helicopter device technical field specifically is a helicopter automatic inclinator structure, including lower tray with rotate install in last tray on the tray down, the bottom of tray connects the base through ripple bottom tube fixedly connected with dress, the bottom of going up the tray connects the footstock through ripple push pipe fixedly connected with dress, tray and dress connect between the base down and go up the tray and connect all be provided with the torsion arm between the footstock, the torsion arm includes the end arm pole with set up in the top arm pole of end arm pole one end, go up the equal fixedly connected with U-shaped base of lateral wall of tray and dress base, the bottom spout has all been seted up on the both sides surface of end arm pole, sliding connection has the assembly bottom shaft on the bottom spout, the utility model discloses make the convenient operation of dismouting simple on helicopter automatic inclinator of torsion arm, be favorable to improving the dismouting convenience of torsion arm, be convenient for carry out quick replacement to taking place to warp or rusty torsion arm and handle more.

Description

Automatic inclinator structure of helicopter

Technical Field

The utility model relates to a helicopter device technical field specifically is a helicopter automatic inclinator structure.

Background

The automatic tilter is a device for converting a pilot or an autopilot command transmitted by a helicopter flight control system into a controlled motion of a rotor blade, because the rotor is rotating, the automatic tilter is used for transmitting the pilot command from a non-rotating body to the rotating blade, the automatic tilter is a main component of the helicopter control system, the total pitch and the cyclic pitch of the rotor are controlled by the automatic tilter, and in order to ensure the safe and stable control of the helicopter, a torsion-proof arm which is deformed or rusted on the automatic tilter needs to be replaced.

However, the torsion-proof arm on the traditional helicopter automatic inclinator is installed through the rotating shaft bolt, so that the torsion-proof arm needs to be screwed or loosened by using a special tool when being disassembled and assembled, the convenience of disassembling and assembling the torsion-proof arm on the helicopter automatic inclinator is influenced, and the inconvenience is brought to the replacement of the deformed or rusted torsion-proof arm, so that the structure of the helicopter automatic inclinator is provided.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an automatic inclinator structure of helicopter to the torque arm of preventing that proposes on the automatic inclinator of traditional helicopter in solving above-mentioned background art leads to preventing that the torque arm need use specialized tool to screw up or loosen the pivot bolt when the dismouting, influences the convenience of preventing the torque arm dismouting on automatic inclinator of helicopter, brings inconvenient problem when changing for taking place to warp or rusty torque arm of preventing.

In order to achieve the above object, the utility model provides a following technical scheme:

an automatic inclinator structure of a helicopter comprises a lower tray and an upper tray rotatably arranged on the lower tray, wherein the bottom end of the lower tray is fixedly connected with a mounting base through a corrugated bottom pipe, the bottom end of the upper tray is fixedly connected with a mounting top seat through a corrugated top pipe, anti-torsion arms are arranged between the lower tray and the mounting base and between the upper tray and the mounting top seat, each anti-torsion arm comprises a bottom arm rod and a top arm rod arranged at one end of the bottom arm rod, the side walls of the upper tray and the mounting base are fixedly connected with a U-shaped base, the two side surfaces of the bottom arm rod are respectively provided with a bottom sliding groove, and a mounting bottom shaft is slidably connected on the bottom sliding grooves, the assembly bottom shaft and the bottom arm rod are fixedly connected with a first spring, bottom shaft openings are formed in the surfaces of the two sides of the U-shaped base, the assembly bottom shaft and the bottom shaft openings are matched, the inner side surface of the U-shaped base is in contact with the side face of the bottom arm rod, the lower tray and the side wall of the mounting top seat are fixedly connected with a U-shaped top seat, top chutes are formed in the surfaces of the two sides of the top arm rod, the top chutes are connected with the assembly top shaft in a sliding mode, the second spring is fixedly connected between the assembly top shaft and the top arm rod, top shaft openings are formed in the surfaces of the two sides of the U-shaped top seat, the assembly top shaft and the top shaft openings are matched, and the inner side surface of the U-shaped top seat is in contact with the side face of the top arm rod.

Preferably, a first rectangular sliding rod is fixedly mounted inside the bottom sliding groove, a limiting bottom groove is formed in the surface of the assembling bottom shaft, and the first rectangular sliding rod is connected with the limiting bottom groove in a sliding mode.

Through setting up first rectangle slide bar and spacing kerve, reached and prevented that assembly bottom shaft from taking place pivoted purpose in the kerve.

Preferably, a plurality of first connecting frames are fixedly connected to the lower tray at intervals, and a plurality of second connecting frames are fixedly connected to the upper tray at intervals.

Preferably, a balancing weight is fixedly installed on the first connecting frame.

Through setting up the balancing weight, reached the purpose of guaranteeing the lower tray equilibrium.

Preferably, a lightening opening is formed in the surface of the second connecting frame, and the section of the lightening opening is rectangular.

Through setting up the heavy mouthful that subtracts, reached the purpose that alleviates second link weight.

Preferably, the bottom arm rod is rotatably connected with one end of the top arm rod through a connecting pin.

Preferably, a second rectangular sliding rod is fixedly mounted inside the top sliding groove, a limiting top groove is formed in the surface of the assembling top shaft, and the second rectangular sliding rod is connected with the limiting top groove in a sliding mode.

Through setting up second rectangle slide bar and spacing apical groove, reached and prevented that assembly apical axis from taking place pivoted purpose in pushing up the spout.

Preferably, the corrugated bottom pipe and the corrugated top pipe are both rubber corrugated pipe members.

Through setting up like this, reached and made ripple bottom tube and ripple push pipe have the purpose of buffering shock-absorbing performance.

Compared with the prior art, the beneficial effects of the utility model are that:

the utility model discloses make the simple operation of dismouting on helicopter automatic inclinator of preventing the torque arm, need not to use specialized tool to screw up or loosen the pivot bolt, be favorable to improving the dismouting convenience of preventing the torque arm, be convenient for more carry out quick replacement to taking place to warp or rusty preventing the torque arm and handle.

Drawings

FIG. 1 is a schematic perspective view of an automatic helicopter tilter configuration;

FIG. 2 is a first cross-sectional structural schematic view of an automatic tilter configuration for a helicopter;

FIG. 3 is an enlarged schematic view of portion A of FIG. 2;

FIG. 4 is a second cross-sectional structural view of a helicopter auto-tilter configuration;

fig. 5 is an enlarged schematic view of a portion B in fig. 4.

In the figure: 1. a lower tray; 11. a corrugated bottom tube; 12. an attachment base; 13. a first connecting frame; 14. a balancing weight; 2. an upper tray; 21. corrugated jacking pipes; 22. mounting a top seat; 23. a second link frame; 24. a weight-reducing opening; 3. a torsion arm; 31. a bottom arm lever; 32. a top arm lever; 33. a connecting pin; 34. a bottom chute; 35. a first spring; 36. a first rectangular slide bar; 37. a top chute; 38. a second rectangular slide bar; 39. a second spring; 4. a U-shaped base; 41. a bottom shaft port; 5. a U-shaped top seat; 51. a top shaft port; 6. assembling a bottom shaft; 61. a limiting bottom groove; 7. assembling a top shaft; 71. and a limiting top groove.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-5, the present invention provides a technical solution:

the utility model provides an automatic inclinator structure of helicopter, install the last tray 2 on tray 1 down including tray 1 and rotation down, the bottom of tray 1 is through ripple bottom tube 11 fixedly connected with dress and connect base 12 down, the bottom of going up tray 2 is through ripple push pipe 21 fixedly connected with dress footstock 22, lower tray 1 and dress are connected between the base 12 and go up tray 2 and dress and are all provided with torsion arm 3 between the footstock 22, torsion arm 3 includes bottom arm pole 31 and sets up in the top arm pole 32 of bottom arm pole 31 one end, go up tray 2 and the equal fixedly connected with U-shaped base 4 of the lateral wall of dress base 12, bottom spout 34 is all seted up on the both sides surface of bottom arm pole 31, sliding connection has assembly bottom shaft 6 on bottom spout 34, fixedly connected with first spring 35 between assembly bottom shaft 6 and the bottom arm pole 31, bottom shaft opening 41 has all been seted up on the both sides surface of U-shaped base 4, assembly bottom shaft 6 and shaft 41 looks adaptation, the inboard surface of U-shaped base 4 contacts in the side of bottom arm pole 31, the side of lower tray 1 and the top arm pole surface of top arm pole 5 and the top arm pole 32 all set up the top arm opening 37, the both sides of top arm opening 37 and top arm opening 37 are all set up on the top arm 32, the both sides of top arm opening 7 of top arm contact with the top arm opening 7 of top arm opening 51, the top arm opening 7 of top arm pole 5, the top arm opening is connected with the top arm opening 51 of U-shaped opening 51, the top arm opening is all connected with the top arm opening of U-shaped opening 51, the top arm opening of U-shaped opening, the top arm opening is connected with the top arm opening 7.

As a preferred embodiment in this embodiment, as shown in fig. 3, a first rectangular sliding rod 36 is fixedly installed inside the bottom sliding slot 34, a limiting bottom slot 61 is opened on the surface of the assembly bottom shaft 6, and the first rectangular sliding rod 36 is slidably connected with the limiting bottom slot 61, so as to achieve the purpose of preventing the assembly bottom shaft 6 from rotating in the bottom sliding slot 34.

As a preferred embodiment in this embodiment, as shown in fig. 1, a plurality of first connecting frames 13 are fixedly connected to the lower tray 1 at intervals, and a plurality of second connecting frames 23 are fixedly connected to the upper tray 2 at intervals.

As a preferred embodiment in this embodiment, as shown in fig. 1, a counterweight 14 is fixedly mounted on the first connecting frame 13, so as to achieve the purpose of ensuring the balance of the lower tray 1.

As a preferred embodiment in the present embodiment, as shown in fig. 1, a lightening opening 24 is formed on a surface of the second connecting frame 23, and the section of the lightening opening 24 is rectangular, so as to achieve the purpose of reducing the weight of the second connecting frame 23.

As a preferred embodiment in this embodiment, as shown in fig. 1, the bottom arm lever 31 is pivotally connected to one end of the top arm lever 32 by a connecting pin 33.

As a preferred embodiment in this embodiment, as shown in fig. 5, a second rectangular sliding rod 38 is fixedly installed inside the top sliding groove 37, a limit top groove 71 is formed on the surface of the assembly top shaft 7, and the second rectangular sliding rod 38 is slidably connected with the limit top groove 71, so as to achieve the purpose of preventing the assembly top shaft 7 from rotating in the top sliding groove 37.

As a preferred implementation manner in this embodiment, as shown in fig. 1, the corrugated bottom pipe 11 and the corrugated top pipe 21 are both a rubber corrugated pipe member, so as to achieve the purpose of making the corrugated bottom pipe 11 and the corrugated top pipe 21 have the shock absorbing performance.

The working principle is as follows:

in the use, when needs will take place to warp or rusty antitorque arm 3 and change the processing, press assembly bottom shaft 6 and make it break away from in bottom shaft opening 41, press assembly apical axis 7 and make it break away from in apical axis opening 51, can take out the antitorque arm 3 dismantlement that takes place to warp or rust, when needs install new antitorque arm 3, press assembly bottom shaft 6 and make it receive in end spout 34 completely, first spring 35 takes place to shrink, place U-shaped base 4 in with end arm pole 31 one end, utilize first spring 35 to promote assembly bottom shaft 6 and wear out bottom shaft opening 41, press assembly apical axis 7 and make it receive in top spout 37 completely, second spring 39 takes place to shrink, place U-shaped footstock 5 in with top arm pole 32 one end, it can to utilize second spring 39 to promote assembly apical axis 7 to wear out apical axis opening 51, thereby be convenient for changing the antitorque arm 3 that takes place to warp or rust.

The foregoing shows and describes the general principles, essential features, and advantages of the invention. It should be understood by those skilled in the art that the present invention is not limited by the above embodiments, and the description in the above embodiments and the description is only preferred examples of the present invention, and is not intended to limit the present invention, and that the present invention can have various changes and modifications without departing from the spirit and scope of the present invention, and these changes and modifications all fall into the scope of the claimed invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides an automatic inclinator structure of helicopter, includes tray (1) down and rotates install in last tray (2) on tray (1) down, the bottom of tray (1) is through ripple bottom tube (11) fixedly connected with dress connects base (12) down, the bottom of going up tray (2) is through ripple push pipe (21) fixedly connected with dress connects footstock (22), tray (1) and dress connect between base (12) and go up tray (2) and dress and connect and all be provided with between footstock (22) and prevent wrench arms (3), its characterized in that: the torsion-proof arm (3) comprises a bottom arm rod (31) and a top arm rod (32) arranged at one end of the bottom arm rod (31), the upper tray (2) and the side wall of the assembled base (12) are fixedly connected with a U-shaped base (4), bottom sliding grooves (34) are formed in the surfaces of the two sides of the bottom arm rod (31), an assembled bottom shaft (6) is connected on the bottom sliding grooves (34) in a sliding manner, a first spring (35) is fixedly connected between the assembled bottom shaft (6) and the bottom arm rod (31), bottom shaft through openings (41) are formed in the surfaces of the two sides of the U-shaped base (4), the assembled bottom shaft (6) is matched with the bottom shaft through openings (41), the inner side surface of the U-shaped base (4) is in contact with the side surface of the bottom arm rod (31), the side wall of the lower tray (1) and the assembled top base (22) is fixedly connected with a U-shaped top base (5), the surfaces of the top sliding grooves (37) and the top shaft (7) are connected with a second spring through openings (51), and the assembled top shaft through openings (7) are connected between the top shaft (51), the inner side surface of the U-shaped top seat (5) is contacted with the side surface of the top arm rod (32).

2. A helicopter auto tilter structure according to claim 1, further comprising: the inside fixed mounting of end spout (34) has first rectangle slide bar (36), spacing kerve (61) have been seted up on the surface of assembly bottom shaft (6), first rectangle slide bar (36) and spacing kerve (61) sliding connection.

3. A helicopter auto tilter structure according to claim 1, further comprising: a plurality of first connecting frames (13) are fixedly connected to the lower tray (1) at intervals, and a plurality of second connecting frames (23) are fixedly connected to the upper tray (2) at intervals.

4. A helicopter auto tilter structure according to claim 3, further comprising: and a balancing weight (14) is fixedly arranged on the first connecting frame (13).

5. A helicopter auto tilter structure according to claim 3, wherein: the surface of the second connecting frame (23) is provided with a weight reducing opening (24), and the cross section of the weight reducing opening (24) is rectangular.

6. A helicopter auto tilter structure according to claim 1, further comprising: the bottom arm lever (31) is rotatably connected with one end of the top arm lever (32) through a connecting pin (33).

7. A helicopter auto tilter structure according to claim 1, further comprising: a second rectangular sliding rod (38) is fixedly mounted inside the top sliding groove (37), a limiting top groove (71) is formed in the surface of the assembling top shaft (7), and the second rectangular sliding rod (38) is connected with the limiting top groove (71) in a sliding mode.

8. A helicopter auto tilter structure according to claim 1, further comprising: the corrugated bottom pipe (11) and the corrugated top pipe (21) are both rubber corrugated pipe members.