Movable vertical tail dock for aircraft maintenance

Abstract

The utility model relates to the technical field of vertical tail docks, in particular to a movable vertical tail dock for aircraft maintenance, the number of platform parts is two, the two platform parts are both arranged on the front side face of a vertical tail part, each platform part comprises a cantilever part, a lifting frame and a cantilever frame, the lifting frame is connected with the vertical tail part in a sliding mode, and the cantilever frame is arranged on the front side face of the lifting frame in a sliding mode. The cantilever part is fixedly arranged at the top of the cantilever frame; when the cantilever support slides outwards along the lifting frame, the two cantilever parts move outwards, the distance between the cantilever parts becomes large, when the cantilever support slides inwards along the lifting frame, the distance between the cantilever parts becomes small, the movable lifting type vertical tail dock is adopted, the dock only needs to be dragged to an airplane parking position for use, and a fixed tail dock parking position does not need to be occupied. The cantilever part can be lifted, opened and closed, is simple to lean against a machine and directly reaches a maintenance part, and can simultaneously maintain two sides of the vertical tail by multiple persons, thereby shortening the maintenance time. And personnel do not need a special equipment operation certificate, so that the quality requirement of the personnel is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of vertical tail docks, in particular to a mobile vertical tail dock for aircraft maintenance. Background Art

[0002] The vertical tail of A320 and B737 series aircraft is relatively high, and it is difficult to approach it for daily maintenance. In major aircraft maintenance companies, a flex-arm lift is generally used to approach the vertical tail for simple maintenance of the aircraft vertical tail. It requires high professional quality of personnel, and they need to have a special operation certificate for the flex-arm lift. They also need to constantly adjust the working position. A single vehicle cannot take care of both sides of the vertical tail. The flex-arm lift has poor stability and cannot meet the needs of work. Deeper maintenance cannot be performed due to platform space limitations. If a simple vertical tail maintenance occupies a large tail dock for maintenance, the utilization rate of the tail dock will be reduced, and the aircraft will be moved frequently.

[0003] During daily maintenance inspections, maintenance workers find it difficult to access the vertical tail section of the aircraft and need to use special equipment to assist in maintenance work. The operation is cumbersome, time-consuming, and requires high professional quality from the operators. Utility Model Content

[0004] The main purpose of the utility model is to provide a mobile vertical tail dock for aircraft maintenance, so as to solve the problem in the related art that it is difficult for maintenance workers to approach the vertical tail part of the aircraft.

[0005] In order to achieve the above-mentioned object, according to one aspect of the utility model, a mobile vertical tail dock for aircraft maintenance is provided, comprising: a bottom frame portion, the bottom frame portion is arranged at the bottom of the mobile vertical tail dock, the bottom frame portion is used to support the main structure;

[0006] A vertical tail portion, which is fixedly arranged at the bottom top of the bottom frame portion, and is used to support the platform portion, and provides a passage for maintenance workers to go up and down the platform portion;

[0007] A platform part, wherein there are two platform parts, and the two platform parts are both arranged on the front side of the vertical tail part. The platform part includes a cantilever part, a lifting frame and a cantilever frame. The lifting frame is slidably connected to the vertical tail part, and the cantilever frame is slidably arranged on the front side of the lifting frame. The cantilever part is fixedly arranged on the top of the cantilever frame. When the lifting frame slides up and down along the vertical tail part, the cantilever part is driven to move up and down. When the cantilever frame slides outward along the lifting frame, the two cantilever parts move outward, and the distance between the cantilever parts becomes larger. When the cantilever frame slides inward along the lifting frame, the two cantilever parts move inward, and the distance between the cantilever parts becomes smaller.

[0008] The tail nozzle platform portion is fixedly arranged on the front side of the vertical tail portion, and the tail nozzle platform portion provides a maintenance platform for maintenance workers.

[0009] Furthermore, the bottom frame portion includes a load-bearing portion and an auxiliary portion, the load-bearing portion includes a forearm support, a bottom frame and a plurality of supporting legs, and the auxiliary portion includes a plurality of side-sway supports and a plurality of casters.

[0010] Furthermore, the forearm bracket is fixed on the front side of the bottom frame, the supporting legs are fixed on both sides of the junction of the forearm bracket and the bottom frame, the casters are rotatably arranged at the forearm bracket and the bottom of the bottom frame, and the side rocking supports are fixed on the forearm bracket, the bottom frame and the bottom end of the supporting legs.

[0011] Furthermore, the vertical tail portion is composed of a plurality of vertical tail units stacked together, and the vertical tail unit includes a vertical tail frame, a staircase and a vertical tail platform. The vertical tail frames are stacked and fixed together to form a vertical tail frame, and the vertical tail frame includes a plurality of vertical columns, an upper frame group and a lower frame group. The vertical columns are fixedly arranged between the upper frame group and the lower frame group to fix the upper frame group and the lower frame group together. The upper frame group includes two upper cross columns, an upper rear longitudinal column and an upper front longitudinal column. The lower frame group includes two lower cross columns, a lower front longitudinal column and a lower rear longitudinal column. The front ends of the upper cross columns are fixedly connected to the upper front longitudinal columns, and the rear ends are fixedly connected to the upper rear longitudinal columns. The front ends of the lower cross columns are fixedly connected to the lower front longitudinal columns, and the rear ends are fixedly connected to the lower rear longitudinal columns. The vertical tail platform is fixedly arranged at the bottom of the vertical tail frame, and the staircase is fixedly arranged in the vertical tail frame.

[0012] Furthermore, the cantilever part includes a cantilever platform, an outer guardrail, an inner guardrail and a small platform. The small platform is fixed at the front end of the cantilever platform and is located above the lifting frame.

[0013] Furthermore, the outer guardrail is fixedly arranged on the outer sides of the cantilever platform and the small platform, the inner guardrail is fixedly arranged on the inner sides of the cantilever platform and the small platform, and the height of the inner guardrail is smaller than the height of the outer guardrail.

[0014] Furthermore, a plurality of pull-out plates are slidably provided on the inner side of the cantilever platform.

[0015] Furthermore, a plurality of pull-out plates are slidably provided on the front side of the tail nozzle platform portion, and the pull-out plates include a pull-out plate group and a guide group, and the pull-out plate group includes a pull-out plate body, a mounting port, an anti-collision strip and a flap pin assembly.

[0016] Furthermore, the guide group includes a plurality of guide wheels, a plurality of bearings, a plurality of guide rail shafts and a plurality of stop blocks, a mounting opening is provided on the front side of the pull-out plate body, and the inner side of the anti-collision strip is located in the mounting opening.

[0017] Furthermore, the anti-collision strip is fixedly connected to the pull-out plate body, and the flap pin assembly is fixedly arranged on the front side of the tail nozzle platform or the inner side of the cantilever platform for fixing the pull-out plate body.

[0018] Compared with the prior art, the utility model has the following beneficial effects: when the lifting frame slides up and down along the vertical tail, the cantilever part is driven to move up and down; when the cantilever frame slides outward along the lifting frame, both cantilever parts move outward, and the distance between the cantilever parts becomes larger; when the cantilever frame slides inward along the lifting frame, both cantilever parts move inward, and the distance between the cantilever parts becomes smaller. By adopting a mobile lifting vertical tail dock, it is only necessary to drag the dock to the aircraft parking position for use, without occupying the fixed tail dock position. The cantilever part can be raised and lowered and opened and closed, and it is simple to approach the aircraft and directly reach the maintenance position. Multiple people can maintain both sides of the vertical tail at the same time, shortening the maintenance time. Personnel do not need to have a special equipment operation certificate, which reduces the personnel quality requirements. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is an overall schematic diagram of the utility model;

[0020] Figure 2 This is a schematic diagram of the structure of the platform part of the utility model;

[0021] Figure 3 This is a schematic diagram of the bottom frame structure of the utility model;

[0022] Figure 4 This is a schematic diagram of the vertical tail frame structure of the utility model;

[0023] Figure 5 This is a schematic diagram of the structure of the pull-out plate of the utility model.

[0024] Illustration Description:

[0025] 1. Bottom frame; 11. Forearm bracket; 12. Bottom frame; 13. Support leg; 14. Side swing support; 15. Caster;

[0026] 2. vertical tail; 21. vertical tail frame; 22. stairs; 23. vertical tail platform; 211. vertical column; 212. lower horizontal column; 213. lower front vertical column; 214. lower rear vertical column; 215. upper horizontal column; 216. upper rear vertical column; 217. upper front vertical column;

[0027] 3. Platform part; 31. Cantilever part; 32. Lifting frame; 33. Cantilever frame; 311. Cantilever platform; 312. External guardrail; 313. Internal guardrail; 314. Small platform;

[0028] 4. Tail nozzle platform;

[0029] 5. Pull-out plate; 51. Pull-out plate body; 52. Mounting port; 53. Anti-collision strip; 54. Flap pin assembly; 55. Guide wheel; 56. Bearing; 57. Guide shaft; 58. Stopper. DETAILED DESCRIPTION

[0030] In order to further explain the technical means and effects adopted by the present invention to achieve the predetermined purpose of the utility model, the specific implementation method, structure, characteristics and effects of the present invention are described in detail below in combination with the accompanying drawings and preferred embodiments.

[0031] See also Figures 1 to 5 , This embodiment provides a mobile vertical tail dock for aircraft maintenance, including: a bottom frame portion 1, the bottom frame portion 1 is arranged at the bottom of the mobile vertical tail dock, and the bottom frame portion 1 is used to support the main structure;

[0032] A vertical tail portion 2, which is fixedly arranged at the bottom top of the bottom frame portion 1, and is used to support the platform portion 3, and provides a passage for maintenance workers to go up and down the platform portion 3;

[0033] The platform part 3 has two platform parts 3, and the two platform parts 3 are both arranged on the front side of the vertical tail part 2. The platform part 3 includes a cantilever part 31, a lifting frame 32 and a cantilever frame 33. The lifting frame 32 is slidably connected to the vertical tail part 2. A cylinder is fixedly arranged at the bottom of the lifting frame 32 for changing the height of the lifting frame 32. The cantilever frame 33 is slidably arranged on the front side of the lifting frame 32. An electric cylinder is arranged inside the lifting frame 32 to drive the cantilever frame 33 to slide left and right along the lifting frame 32. The cantilever part 31 is fixedly arranged on the top of the cantilever frame 33. When the lifting frame 32 slides up and down along the vertical tail part 2, the cantilever part 31 is driven to move up and down. When the cantilever frame 33 slides outward along the lifting frame 32, the two cantilever parts 31 move outward, and the distance between the cantilever parts 31 becomes larger. When the cantilever frame 33 slides inward along the lifting frame 32, the two cantilever parts 31 move inward, and the distance between the cantilever parts 31 becomes smaller.

[0034] The tail nozzle platform part 4 is fixedly arranged on the front side of the vertical tail part 2, and the tail nozzle platform part 4 provides a maintenance platform for maintenance workers.

[0035] The bottom frame portion 1 includes a load-bearing portion and an auxiliary portion. The load-bearing portion includes a forearm support 11 , a bottom frame 12 and a plurality of support legs 13 , and the auxiliary portion includes a plurality of side-sway supports 14 and a plurality of casters 15 .

[0036] The forearm bracket 11 is fixed on the front side of the bottom frame 12, the support legs 13 are fixed on both sides of the junction of the forearm bracket 11 and the bottom frame 12, the casters 15 are rotatably arranged at the bottom of the forearm bracket 11 and the bottom frame 12, and the side rocking supports 14 are fixed at the bottom of the forearm bracket 11, the bottom frame 12 and the support legs 13.

[0037] The vertical tail part 2 is composed of a plurality of vertical tail units stacked together. The vertical tail units include a vertical tail frame 21, a staircase 22 and a vertical tail platform 23. The vertical tail frames 21 are stacked and fixed together to form a vertical tail frame. The vertical tail frame mainly serves to connect various parts. The height can reach 9 meters. In order to ensure the reliability of the main frame, the size and thickness of the profiles used will also be increased. The vertical tail frame 21 includes a plurality of vertical columns 211, an upper frame group and a lower frame group. The vertical columns 211 are fixedly arranged between the upper frame group and the lower frame group to fix the upper frame group and the lower frame group together. The upper frame group includes two upper transverse columns 215, an upper rear longitudinal column 216 and an upper front longitudinal column 217, and the lower frame group includes two lower transverse columns 212, a lower front longitudinal column 213 and a lower rear longitudinal column 214. The front ends of the upper transverse columns 215 are fixedly connected to the upper front longitudinal columns 217, and the rear ends are fixedly connected to the upper rear longitudinal columns 216. The front ends of the lower transverse columns 212 are fixedly connected to the lower front longitudinal columns 213, and the rear ends are fixedly connected to the lower rear longitudinal columns 214. The vertical tail platform 23 is fixedly arranged at the bottom of the vertical tail frame 21, and the stairs 22 are fixedly arranged in the vertical tail frame 21.

[0038] The cantilever part 31 includes a cantilever platform 311 , an outer guardrail 312 , an inner guardrail 313 and a small platform 314 . The small platform 314 is fixed to the front end of the cantilever platform 311 and is located above the lifting frame 32 .

[0039] The outer guardrail 312 is fixed on the outside of the cantilever platform 311 and the small platform 314, and the inner guardrail 313 is fixed on the inside of the cantilever platform 311 and the small platform 314. The height of the inner guardrail 313 is less than the height of the outer guardrail 312, which is half the height of the outer guardrail 312, which is convenient for workers to carry out maintenance work.

[0040] A plurality of pull-out plates 5 are slidably disposed inside the cantilever platform 311 .

[0041] A plurality of pull-out plates 5 are slidably provided on the front side of the tail spray platform portion 4. The pull-out plates 5 include a pull-out plate group and a guide group. The pull-out plate group includes a pull-out plate body 51, a mounting port 52, an anti-collision strip 53 and a flap pin assembly 54. The guide group includes a plurality of guide wheels 55, a plurality of bearings 56, a plurality of guide rail shafts 57 and a plurality of stoppers 58. A mounting port 52 is provided on the front side of the pull-out plate body 51. The inner side of the anti-collision strip 53 is located in the mounting port 52. The anti-collision strip 53 is fixedly connected to the pull-out plate body 51. The flap pin assembly 54 is fixedly provided on the front side of the tail spray platform portion 4 or the inner side of the cantilever platform 311. The flap pin assembly 54 includes a fixed plate fixedly provided on the tail spray platform portion 4 or the cantilever platform 311 and a latch provided in the fixed plate. The latch can be inserted into a pin groove in the pull-out plate body 51 to fix the pull-out plate body 51.

[0042] The guide wheel 55 is rotatably arranged outside the tail nozzle platform 4 or the cantilever platform 311 on both sides, and the guide shaft 57 is fixedly arranged outside the tail nozzle platform 4 or the cantilever platform 311 on both sides, and the guide wheel 55 is sleeved on the guide shaft 57, and the bearing 56 is arranged on the guide shaft 57, the inner ring of which is fixed to the guide shaft 57, and the outer ring of which is fixed to the guide wheel 55, and the guide wheel 55 and the guide shaft 57 can be connected by the bearing 56, and the guide shaft 57 forms a support for the guide wheel 55, and the guide wheel 5 5 can rotate freely on the guide shaft 57, the stopper 58 is fixedly arranged on the inner side of the tail spray platform part 4 or the cantilever platform 311, and is located behind the guide shaft 57, both sides of the pull-out plate body 51 are provided with wheel grooves, and the guide wheel 55 is located in the wheel grooves. When the pull-out plate body 51 is pulled out, the wheel grooves and the guide wheel 55 are in contact, and under the action of the guide wheel 55, the pull-out of the pull-out plate body 51 is facilitated, and the stopper 58 can block and limit the pull-out plate body 51.

[0043] The forearm bracket 11 is connected to the bottom frame 12 by connecting plate bolts. The column of the bottom frame 12 is made of 160*5 square tube. The support leg 13 is connected to the bottom frame 12 by welding. The side support 14 is fixed by connecting plate bolts. The load capacity is 3t. After the mobile tail dock is pulled to the specified position, the side support 14 is put down to stabilize the product. The caster 15 is a double-wheel universal wheel, model 88D429X2SZ8, and a single caster can carry 4500k g, connected to the components by connecting plate bolts, the vertical tail frame 21 mainly serves to connect the various parts, with a height of 9 meters, the lower horizontal column 212 and the upper horizontal column 215 are made of 200*10 square tubes, the vertical column 211 is made of 163*6.3 square tubes, the lower front longitudinal column 213 and the upper front longitudinal column 217 are made of 150-10-10*150 H-shaped steel, the lower rear longitudinal column 214 and the upper rear longitudinal column 216 are made of 163*6.3 square tubes.

[0044] The vertical tail 2 is pushed to push the vertical tail dock to the vicinity of the aircraft to be repaired, and the cylinders in the two lifting frames 32 are controlled at the same time. The cylinders drive the cantilever frame 33 to move outward along the lifting frames 32, and the two cantilever parts 31 are separated, and the distance between them becomes larger. The vertical tail 2 is pushed to make fine adjustments so that the aircraft is located between the two cantilever parts 31. The cylinders in the lifting frames 32 are controlled again. The cylinders drive the cantilever frame 33 to move inward along the lifting frames 32, and the two cantilever parts 31 gather together and approach the aircraft. The cylinder at the bottom of the lifting frames 32 is started. When the piston rod of the cylinder is extended, the lifting frames 3 are pushed. 2 is raised, the lifting frame 32 drives the cantilever platform 311 to rise, and when the piston rod of the cylinder retracts, the lifting frame 32 is pulled down, and the lifting frame 32 drives the cantilever platform 311 to lower, and the maintenance worker enters the vertical tail platform 23 and the cantilever platform 311 through the stairs 22, pulls out the drawer plate 5 at the vertical tail platform 23, stands on the drawer plate 5 to repair the rear of the tail of the aircraft, pulls out the drawer plate 5 at the cantilever platform 311, stands on the drawer plate 5 to repair both sides of the aircraft, and by changing the height of the cantilever platform 311, it is convenient to repair different parts of the aircraft.

[0045] The above description is only a preferred embodiment of the present invention and does not constitute any form of limitation to the present invention. Although the present invention has been disclosed as a preferred embodiment as above, it is not intended to limit the present invention. Any technical personnel in this field can make some changes or modify the technical contents disclosed above into equivalent embodiments without departing from the scope of the technical solution of the present invention. However, any brief modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A mobile vertical tail dock for aircraft maintenance, characterized in that: include: A bottom frame portion (1), the bottom frame portion (1) being arranged at the bottom of the mobile vertical tail dock, and the bottom frame portion (1) being used to support the main structure; A vertical tail portion (2), the vertical tail portion (2) being fixedly arranged at the bottom top of the bottom frame portion (1), the vertical tail portion (2) being used to support the platform portion (3), and the vertical tail portion (2) providing a passage for maintenance workers to go up and down the platform portion (3); A platform portion (3), wherein there are two platform portions (3), and the two platform portions (3) are both arranged on the front side of the vertical tail portion (2). The platform portion (3) comprises a cantilever portion (31), a lifting frame (32) and a cantilever frame (33). The lifting frame (32) is slidably connected to the vertical tail portion (2), and the cantilever frame (33) is slidably arranged on the front side of the lifting frame (32). The cantilever portion (31) is fixedly arranged on the top of the cantilever frame (33). When the lifting frame (32) slides up and down along the vertical tail portion (2), the cantilever portion (31) is driven to move up and down. When the cantilever frame (33) slides outward along the lifting frame (32), the two cantilever portions (31) move outward, and the distance between the cantilever portions (31) increases. When the cantilever frame (33) slides inward along the lifting frame (32), the two cantilever portions (31) move inward, and the distance between the cantilever portions (31) decreases. A tail nozzle platform portion (4), wherein the tail nozzle platform portion (4) is fixedly arranged on the front side of the vertical tail portion (2), and the tail nozzle platform portion (4) provides a maintenance platform for maintenance workers.

2. The mobile vertical tail dock for aircraft maintenance according to claim 1, characterized in that: The bottom frame portion (1) comprises a load-bearing portion and an auxiliary portion, the load-bearing portion comprising a forearm support (11), a bottom frame (12) and a plurality of support legs (13), and the auxiliary portion comprising a plurality of side-sway supports (14) and a plurality of casters (15).

3. The mobile vertical tail dock for aircraft maintenance according to claim 2, characterized in that: The forearm bracket (11) is fixedly arranged on the front side of the bottom frame (12); the support legs (13) are fixedly arranged on both sides of the junction of the forearm bracket (11) and the bottom frame (12); the casters (15) are rotatably arranged on the bottom of the forearm bracket (11) and the bottom frame (12); and the side swing supports (14) are fixedly arranged on the bottom ends of the forearm bracket (11), the bottom frame (12) and the support legs (13).

4. The mobile vertical tail dock for aircraft maintenance according to claim 3, characterized in that: The vertical tail portion (2) is composed of a plurality of vertical tail units stacked together, the vertical tail units comprising a plurality of vertical tail frames (21), stairs (22) and a vertical tail platform (23), the vertical tail frames (21) being stacked and fixed together to form a vertical tail frame, the vertical tail frame (21) comprising a plurality of vertical columns (211), an upper frame group and a lower frame group, the vertical columns (211) being fixedly arranged between the upper frame group and the lower frame group to fix the upper frame group and the lower frame group together, the upper frame group comprising two upper horizontal columns (215), an upper rear longitudinal column (216) and an upper front longitudinal column (21 7), the lower frame group comprises two lower transverse columns (212), a lower front longitudinal column (213) and a lower rear longitudinal column (214); the front ends of the upper transverse columns (215) are fixedly connected to the upper front longitudinal columns (217), and the rear ends are fixedly connected to the upper rear longitudinal columns (216); the front ends of the lower transverse columns (212) are fixedly connected to the lower front longitudinal columns (213), and the rear ends are fixedly connected to the lower rear longitudinal columns (214); the vertical tail platform (23) is fixedly arranged at the bottom of the vertical tail frame (21); and the stairs (22) are fixedly arranged in the vertical tail frame (21).

5. The mobile vertical tail dock for aircraft maintenance according to claim 1, characterized in that: The cantilever part (31) comprises a cantilever platform (311), an outer guardrail (312), an inner guardrail (313) and a small platform (314); the small platform (314) is fixedly arranged at the front end of the cantilever platform (311) and is located above the lifting frame (32).

6. The mobile vertical tail dock for aircraft maintenance according to claim 5, characterized in that: The outer guardrail (312) is fixedly arranged on the outside of the cantilever platform (311) and the small platform (314), and the inner guardrail (313) is fixedly arranged on the inside of the cantilever platform (311) and the small platform (314), and the height of the inner guardrail (313) is less than the height of the outer guardrail (312).

7. The mobile vertical tail dock for aircraft maintenance according to claim 5, characterized in that: A plurality of pull-out plates (5) are slidably provided on the inner side of the cantilever platform (311).

8. The mobile vertical tail dock for aircraft maintenance according to claim 1, characterized in that: A plurality of pull-out plates (5) are slidably provided on the front side of the tail nozzle platform portion (4), wherein the pull-out plates (5) comprise a pull-out plate group and a guide group, and the pull-out plate group comprises a pull-out plate body (51), a mounting opening (52), an anti-collision strip (53) and a flap pin assembly (54).

9. The mobile vertical tail dock for aircraft maintenance according to claim 8, characterized in that: The guide group comprises a plurality of guide wheels (55), a plurality of bearings (56), a plurality of guide rail shafts (57) and a plurality of stoppers (58); a mounting opening (52) is provided on the front side of the drawer plate body (51); and the inner side of the anti-collision strip (53) is located in the mounting opening (52).

10. The mobile vertical tail dock for aircraft maintenance according to claim 9, characterized in that: The anti-collision strip (53) is fixedly connected to the drawer plate body (51), and the flap pin assembly (54) is fixedly arranged on the front side of the tail nozzle platform portion (4) or the inner side of the cantilever platform (311) to fix the drawer plate body (51).

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