CN112407319A

CN112407319A - Tail support frame of small-size training machine

Info

Publication number: CN112407319A
Application number: CN202011481015.6A
Authority: CN
Inventors: 姚鑫; 丁志勇; 李志军; 周雪松; 孙召云
Original assignee: Wuhu Zhongke Aircraft Manufacturing Co ltd
Current assignee: Wuhu Zhongke Aircraft Manufacturing Co ltd
Priority date: 2020-12-15
Filing date: 2020-12-15
Publication date: 2021-02-26
Anticipated expiration: 2040-12-15
Also published as: CN112407319B

Abstract

The invention relates to the technical field of aircraft manufacturing, in particular to a tail support frame of a small-sized trainer, which comprises a buffer frame and a limiting mechanism, wherein the buffer frame comprises a central shaft, one end of the central shaft is provided with a hinged seat, the other end of the central shaft is provided with a fixed ring, a sliding ring is sleeved on the central shaft, the central shaft is sleeved with a buffer spring, a plurality of support foot rods are hinged around the central line of the central shaft in an equal angular difference manner in a sliding manner, one end of each support foot rod is hinged with the sliding ring through a hinged shaft, a plurality of connecting rods are hinged around the central line of the central shaft in an equal angular difference manner in a fixed manner, one end of each connecting rod is hinged with the fixed ring through a connecting shaft, all the connecting rods are hinged with the middle sections of the corresponding support foot rods through rotating shafts, universal wheels are, the buffer frame can buffer the tail of the airplane when the tail of the airplane suddenly falls, so that the reaction force generated on the tail of the airplane is reduced.

Description

Tail support frame of small-size training machine

Technical Field

The invention relates to the technical field of aircraft manufacturing, in particular to a tail support frame of a small trainer.

Background

When the aircraft was static, there was the risk that the aircraft afterbody landed, the aircraft is at the assembling process, when the aircraft afterbody fell suddenly, cause the damaged condition to the aircraft assembly, the recoil atmospheric pressure that has only passed through the cylinder had played the recoil effect, then support immovable to the aircraft afterbody, and when the aircraft afterbody fell suddenly, current support frame does not have the buffering, produce the reaction force to the aircraft afterbody easily, make the casing of aircraft afterbody and paint cause the damage, the directional fixed of current support frame, when the aircraft afterbody fell suddenly, cause the support frame to empty easily.

Disclosure of Invention

The invention aims to provide a tail support frame of a small trainer so as to solve the problems in the prior art.

The technical scheme of the invention is as follows:

the utility model provides a afterbody support frame of small-size training machine, the afterbody support frame is including buffer bracket and the stop gear who sets up at the top of buffer bracket, the buffer bracket is including the center pin, the one end of center pin is provided with articulated seat, solid fixed ring is installed to the other end of center pin, the cover is equipped with the slip ring on the center pin, the center pin is located to overlap between solid fixed ring and the center pin and is equipped with buffer spring, and it has a plurality of supporting legs to slide to encircle angular difference such as self center line and articulate, the articulated shaft is passed through with the slip ring to the one end of supporting legs, fixed angle difference such as self center line that encircles articulates has a plurality of connecting rod, the one end of connecting rod is passed through the connecting axle and is articulated with solid fixed ring, all the one end that.

Furthermore, stop gear is including the spacing frame of the structure of falling the U-shaped, spacing frame opening is down, spacing inboard top is provided with the articulated joint, the articulated joint rotates with articulated seat through the rotation axis parallel with spacing frame to be connected.

Further, the inner wall both sides integrated into one piece of spacing frame has the engaging lug, and every engaging lug is the plane board parallel with the rotation axis, the engaging lug all is provided with perpendicular to self planar guide bar in place, the one end fixed mounting that the guide bar is located spacing frame has the cambered plate, the opening of cambered plate is towards the center pin, the guide bar is located the cover and is equipped with reset spring between cambered plate and the engaging lug.

Furthermore, the top of spacing frame is provided with the fixed ear of a plurality of, be provided with a plurality of bolt hole on the fixed ear.

Furthermore, the other end of the supporting foot rod is rotatably provided with a universal wheel.

Furthermore, triangular prism-shaped supporting foot blocks are arranged at corners of the inner wall of the limiting frame.

The invention provides a tail support frame of a small trainer through improvement, compared with the prior art, the tail support frame has the following improvements and advantages:

one is as follows: the universal wheels are arranged at the bottom of the buffer frame, so that the aircraft can rotate along with the tail of the aircraft and then move along with the tail of the aircraft during aircraft assembly, and the aircraft assembly is facilitated.

The second step is as follows: the buffer frame has the buffer function, so that the reaction force generated by the buffer frame on the tail of the airplane when the tail suddenly drops is reduced, and the shell of the tail of the airplane and the paint of the shell are prevented from being damaged.

And thirdly: the limiting mechanism can change the supporting force of the limiting mechanism on the tail of the airplane along with the falling direction of the tail of the airplane when the tail of the airplane suddenly falls, so that the supporting frame is prevented from falling.

Drawings

The invention is further explained below with reference to the figures and examples:

FIG. 1 is a schematic perspective view of the present invention;

FIG. 2 is a side view of the present invention;

FIG. 3 is a cross-sectional view taken along line A-A of FIG. 2;

FIG. 4 is a schematic perspective view of a bumper bracket according to the present invention;

FIG. 5 is a schematic perspective view of the spacing mechanism of the present invention;

description of reference numerals:

buffer frame 1, center pin 11, articulated seat 12, solid fixed ring 13, slip ring 14, buffer spring 15, supporting legs 16, connecting rod 17, connecting axle 19, stop gear 2, articulated shaft 3, axis of rotation 4, spacing frame 5, articulated joint 51, rotation axis 52, engaging lug 53, fixed ear 54, guide bar 55, reset spring 56, cambered plate 57, bolt hole 58, universal wheel 6, supporting legs piece 7.

Detailed Description

The present invention is described in detail below, and technical solutions in the embodiments of the present invention are clearly and completely described, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The invention provides a tail support frame of a small-sized trainer through improvement, as shown in figures 1-5, the tail support frame comprises a buffer frame 1 and a limiting mechanism 2 arranged at the top of the buffer frame 1, the buffer frame 1 comprises a central shaft 11, one end of the central shaft 11 is provided with a hinged seat 12, the other end of the central shaft 11 is provided with a fixed ring 13, the central shaft 11 is sleeved with a sliding ring 14, the central shaft 11 is sleeved with a buffer spring 15 between the fixed ring 13 and the central shaft 11, the sliding ring 14 is hinged with a plurality of support foot rods 16 around the central line of the sliding ring 14 at equal angle difference, one end of each support foot rod 16 is hinged with the sliding ring 14 through a hinged shaft 3, the fixed ring 13 is hinged with a plurality of connecting rods 17 around the central line at equal angle difference, one end of each connecting rod 17 is hinged with the fixed ring 13 through, all the one end that solid fixed ring 13 was kept away from to connecting rod 17 is all articulated through axis of rotation 4 and the middle section of the supporting legs pole 16 that corresponds, and when the aircraft was tenesmus suddenly, the pressure moved buffer frame 1, then the universal wheel 6 of supporting legs pole 16 was toward expanding outward and buffer spring 15 cooperation, realized that buffer frame 1 machines has the buffering, when reducing the tail and tenesmus suddenly, buffer frame 1 produced the reaction force to the aircraft afterbody, avoided the casing of aircraft afterbody and its paint damaged.

Stop gear 2 is including the spacing frame 5 of falling the U-shaped structure, 5 openings of spacing frame are down, 5 inboard tops of spacing frame are provided with articulated head 51, articulated head 51 rotates with articulated seat 12 through the rotation axis 52 parallel with spacing frame 5 to be connected, and stop gear 2 can be when the tail falls suddenly, and stop gear 2 avoids the support frame to empty along with the aircraft tail tenesmus direction change to the holding power of aircraft tail.

Spacing frame 5's inner wall both sides integrated into one piece has engaging lug 53, and every engaging lug 53 is the plane board parallel with rotation axis 52 axis, engaging lug 53 all is provided with perpendicular to self planar guide bar 55, the one end fixed mounting that guide bar 55 is located spacing frame 5 has cambered plate 57, cambered plate 57's opening is towards center pin 11, guide bar 55 is located and is equipped with reset spring 56 between cambered plate 57 and the engaging lug 53, and when stop gear 2 can be when the tail suddenly tenesmus, stop gear 2 changes along with aircraft afterbody tenesmus direction to the holding power of aircraft afterbody, avoids the support frame to empty, and reset spring 56 inside spacing frame 5 can be spacing to the swing of center pin 11.

The top of the limiting frame 5 is provided with a plurality of fixing lugs 54, the fixing lugs 54 are provided with a plurality of bolt holes 58, and the limiting frame 5 is fixed at the tail of the airplane.

The other end of the supporting foot rod 16 is rotated and is installed with the universal wheel 6, the bottom of the buffer frame 1 is provided with the universal wheel 6, and when the airplane is assembled, the airplane can rotate along with the tail of the airplane and then move along with the airplane, so that the airplane is assembled conveniently.

The corner of the inner wall of the limiting frame 5 is provided with a triangular prism-shaped supporting foot block 7, so that the stability of the limiting frame 5 is ensured.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. The utility model provides a afterbody support frame of small-size training machine which characterized in that: the tail support frame comprises a buffer frame (1) and a limiting mechanism (2) arranged at the top of the buffer frame (1), the buffer frame (1) comprises a central shaft (11), one end of the central shaft (11) is provided with a hinged seat (12), the other end of the central shaft (11) is provided with a fixed ring (13), the central shaft (11) is sleeved with a sliding ring (14), the central shaft (11) is positioned between the fixed ring (13) and the central shaft (11) and is provided with a buffer spring (15), the sliding ring (14) is hinged with a plurality of support foot rods (16) around the central line of the sliding ring with equal angular difference, one end of each support foot rod (16) is hinged with the corresponding sliding ring (14) through a hinged shaft (3), the fixed ring (13) is hinged with a plurality of connecting rods (17) around the central line with equal angular difference, one end of each connecting rod (17) is hinged with the fixed ring (13) through, all one end of the connecting rod (17) far away from the fixing ring (13) is hinged with the middle section of the corresponding supporting foot rod (16) through the rotating shaft (4).

2. The tail support frame of a small trainer according to claim 1, wherein: stop gear (2) are including spacing frame (5) of the structure of falling the U-shaped, spacing frame (5) opening is down, spacing frame (5) inboard top is provided with articulated joint (51), articulated joint (51) are connected with articulated seat (12) rotation through rotation axis (52) parallel with spacing frame (5).

3. The tail support frame of a small trainer according to claim 2, wherein: inner wall both sides integrated into one piece of spacing frame (5) has engaging lug (53), and every engaging lug (53) be with rotation axis (52) axis parallel plane board, engaging lug (53) all are provided with perpendicular to self planar guide bar (55), the one end fixed mounting that guide bar (55) are located spacing frame (5) has cambered plate (57), the opening of cambered plate (57) is towards center pin (11), the cover is equipped with reset spring (56) between guide bar (55) are located cambered plate (57) and engaging lug (53).

4. The tail support frame of a small trainer according to claim 2, wherein: the top of spacing frame (5) is provided with a plurality of and fixes ear (54), be provided with a plurality of bolt hole (58) on fixed ear (54).

5. The tail support frame of a small trainer according to claim 1, wherein: the other end of the supporting foot rod (16) is rotatably provided with a universal wheel (6).

6. The tail support frame of a small trainer according to claim 2, wherein: and triangular prism-shaped supporting foot blocks (7) are arranged at corners of the inner wall of the limiting frame (5).