Cantilever type platform transverse walking mechanism

Abstract

The utility model relates to the technical field of aircraft maintenance equipment, in particular to a cantilever type platform transverse walking mechanism, a transverse moving part is fixedly arranged on the front side face of a vertical tail frame, the transverse moving part comprises an upper square tube, two lead screws and two power parts, the upper square tube is fixedly arranged on the front side face of the vertical tail frame, the power parts are used for driving the lead screws to rotate, and the two lead screws are fixedly arranged on the front side face of the vertical tail frame. The lead screw provides power for the guide wheel part; when the opening and closing guide wheel is about to collide with the middle stand column, the left stand column or the right stand column, the travel switch is triggered, a circuit of the motor is disconnected and does not work, the opening and closing guide wheel stops moving, and collision is avoided. When the power part drives the lead screw to rotate in the first direction, the guide wheel part moves outwards along the lead screw, the distance between the cantilever type platforms becomes large, an airplane can enter and exit conveniently, when the power part drives the lead screw to rotate in the second direction, the guide wheel part moves inwards along the lead screw, the distance between the cantilever type platforms becomes small, and maintenance workers can get close to the airplane conveniently.

Description

Technical Field

[0001] The utility model relates to the technical field of aircraft maintenance equipment, in particular to a cantilever platform lateral walking mechanism. 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, for the inspection and simple maintenance of the vertical tail of the aircraft, a flex-arm lift is generally used to approach the vertical tail. This 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 carried out due to platform space limitations. If a large tail dock is occupied for simple maintenance of the vertical tail, the utilization rate of the tail dock will be reduced, and the aircraft will be moved frequently. Therefore, when moving the cantilever platform, most of them use a flex-arm lift to assist in the operation, which requires high professional quality of the operator and is not convenient to move. Utility Model Content

[0003] The main purpose of the utility model is to provide a cantilever platform lateral walking mechanism to solve the problem proposed in the related art that it is not convenient to move the cantilever platform by using a crank arm vehicle.

[0004] In order to achieve the above-mentioned purpose, according to one aspect of the utility model, a cantilever platform lateral walking mechanism is provided, comprising: a vertical tail frame, the vertical tail frame is fixedly arranged on the ground to provide support for the mechanism, a plurality of stabilizing parts are fixedly arranged on the front side of the vertical tail frame, the stabilizing parts include a connecting frame, a clamping wheel and a stabilizing wheel, the connecting frame is fixedly connected to the vertical tail frame by bolts, the stabilizing wheel is rotatably arranged on the outside of the connecting frame, the clamping wheel is rotatably arranged on the outside of the connecting frame and is located above the stabilizing wheel;

[0005] A traverse portion, the traverse portion is installed on the front side of the vertical tail frame, the traverse portion comprises an upper square passage, two screw rods and two power parts, the upper square passage is fixedly arranged on the front side of the vertical tail frame, the power part is used to drive the screw rod to rotate, and the screw rod provides power for the guide wheel part;

[0006] There are two guide wheel parts, both of which are rotatably arranged on the upper square passage. The guide wheel parts are threadedly connected to the screw rod. When the power part drives the screw rod to rotate in a first direction, the guide wheel part moves outward along the screw rod. When the power part drives the screw rod to rotate in a second direction, the guide wheel part moves inward along the screw rod.

[0007] Furthermore, the transverse displacement portion further comprises a column group, a lower square passage and a support block, and the column group comprises a middle column, a left column and a right column.

[0008] Furthermore, the lower square passage is fixedly arranged on the front side of the vertical tail frame and is located below the upper square passage, the upper end of the middle column is fixedly connected to the middle part of the upper square passage, and the lower end is fixedly connected to the middle part of the lower square passage.

[0009] Furthermore, the upper end of the left column is fixedly connected to the left end of the upper square passage, and the lower end is fixedly connected to the left end of the lower square passage. The upper end of the right column is fixedly connected to the right end of the upper square passage, and the lower end is fixedly connected to the right end of the lower square passage. The support block is fixedly arranged on the upper part of the front side surface of the middle column, and the end of the screw rod is rotatably connected to the support block.

[0010] Furthermore, the power unit includes a motor, a steering gear, a gear transmission box and a coupling group, and the coupling group includes a first plum blossom coupling and a second plum blossom coupling.

[0011] Furthermore, one of the motors is fixedly connected to the left column via an inclined rod, and the other motor is fixedly connected to the right column via an inclined rod, the first plum blossom coupling is fixedly connected to the motor, one of the steering gears is fixedly arranged on the front side of the left column, and the other steering gear is fixedly arranged on the front side of the right column.

[0012] Furthermore, one end of the second plum blossom coupling is fixedly connected to the steering gear, and the other end is fixedly connected to the gear transmission box, and the gear transmission box is fixedly connected to the screw rod and is used to drive the screw rod to rotate, wherein one part of the gear transmission box is fixedly arranged on the front side of the left column, and the other part of the gear transmission box is fixedly arranged on the front side of the right column.

[0013] Furthermore, the guide wheel part includes a guide wheel box, a connecting seat, a screw nut and a plurality of guide wheel groups. The guide wheel group is located inside the guide wheel box, and the guide wheel group includes a central axis and an opening and closing guide wheel.

[0014] Furthermore, the guide wheel box is slidably connected to the upper square passage, one end of the connecting seat is fixedly connected to the guide wheel box, and the other end is fixedly connected to the screw nut.

[0015] Furthermore, the screw nut is threadedly connected to the screw, the central shaft is fixedly arranged in the guide wheel box, the opening and closing guide wheel is rotatably arranged on the outer ring of the central shaft, and the opening and closing guide wheel is rollingly connected to the upper square passage.

[0016] Compared with the prior art, the utility model has the following beneficial effects: when the opening and closing guide wheel is about to collide with the middle column, the left column or the right column, the travel switch will be triggered, the circuit of the motor will be disconnected and it will no longer work, and the opening and closing guide wheel will stop moving, thereby avoiding the occurrence of collision; when the power unit drives the screw rod to rotate in a first direction, the guide wheel unit moves outward along the screw rod, and the spacing between the cantilever platform bodies becomes larger, thereby facilitating the entry and exit of the aircraft; when the power unit drives the screw rod to rotate in a second direction, the guide wheel unit moves inward along the screw rod, and the spacing between the cantilever platform bodies becomes smaller, thereby facilitating maintenance workers to approach the aircraft. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is an overall schematic diagram of the vertical tail frame, the lateral shifting part and the guide wheel part of the utility model;

[0018] Figure 2 This is a schematic diagram of the structure of the transverse shifting part and the guide wheel part of the utility model;

[0019] Figure 3 It is a structural schematic diagram of the guide wheel part and the upper square passage in a cross-sectional state of the utility model;

[0020] Figure 4 It is a partial enlarged schematic diagram of the structure of the transverse shifting part of the utility model;

[0021] Figure 5 It is a plan view of the transverse shifting part of the utility model;

[0022] Figure 6 This is a schematic diagram of the structure of the stable part of the utility model;

[0023] Figure 7 It is a schematic diagram of the installation state of the transverse moving part, the guide wheel part and the cantilever platform body of the utility model;

[0024] Figure 8 It is a schematic diagram of the application state of the utility model.

[0025] Illustration Description:

[0026] 1. Vertical tail frame;

[0027] 2. Transverse moving part; 20. Middle column; 21. Upper square passage; 22. Lower square passage; 23. Left column; 24. Right column; 25. Screw rod; 26. Support block; 27. Power unit; 271. Motor; 272. First plum blossom coupling; 273. Steering gear; 274. Second plum blossom coupling; 275. Gear transmission box;

[0028] 3. Guide wheel part; 31. Guide wheel box; 32. Connecting seat; 33. Screw nut; 34. Middle shaft; 35. Opening and closing guide wheel;

[0029] 4. Stabilizing part; 41. Connecting frame; 42. Pressing wheel; 43. Stabilizing wheel;

[0030] 5. Cantilever platform body;

[0031] 6. Diagonal bracing;

[0032] 7. The first slider;

[0033] 8. Second slider. DETAILED DESCRIPTION

[0034] 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.

[0035] See also Figures 1 to 8 , the present embodiment provides a cantilever platform body 5 lateral walking mechanism, including: a vertical tail frame 1, the vertical tail frame 1 is fixedly arranged on the ground to provide support for the mechanism, a plurality of stabilizing parts 4 are fixedly arranged on the front side of the vertical tail frame 1, the stabilizing part 4 includes a connecting frame 41, a clamping wheel 42 and a stabilizing wheel 43, the connecting frame 41 is fixedly connected to the vertical tail frame 1 by bolts, the stabilizing wheel 43 is rotatably arranged on the outside of the connecting frame 41, the clamping wheel 42 is rotatably arranged on the outside of the connecting frame 41 and is located above the stabilizing wheel 43, before movement, the stabilizing part 4 is connected and fixed to the wheel seat of the vertical tail frame 1, the clamping wheel 42 is responsible for longitudinal movement, the wheel surface is in contact with the surface of the transverse moving part 2, which can guide the transverse moving part 2 in the vertical movement process and reduce friction to ensure smooth movement, it should be noted that a hydraulic cylinder connected to the transverse moving part 2 is installed on the top of the vertical tail frame 1, which can drive the transverse moving part 2 to move up and down;

[0036] A transverse moving part 2, which is installed on the front side of the vertical tail frame 1;

[0037] The traverse part 2 includes an upper square passage 21, two screw rods 25 and two power parts 27. The upper square passage 21 is fixedly arranged on the front side of the vertical tail frame 1. The power part 27 is used to drive the screw rod 25 to rotate, and the screw rod 25 provides power for the guide wheel part 3.

[0038] There are two guide wheel parts 3, both of which are rollingly arranged on the upper square passage 21. The guide wheel part 3 is threadedly connected with the screw rod 25. When the power part 27 drives the screw rod 25 to rotate along the first direction, the guide wheel part 3 moves outward along the screw rod 25. When the power part 27 drives the screw rod 25 to rotate along the second direction, the guide wheel part 3 moves inward along the screw rod 25.

[0039] The transverse moving part 2 further includes a column group, a lower square passage 22 and a support block 26 . The column group includes a middle column 20 , a left column 23 and a right column 24 .

[0040] The lower square passage 22 is fixedly arranged on the front side of the vertical tail frame 1 and is located below the upper square passage 21. The upper end of the middle column 20 is fixedly connected to the middle of the upper square passage 21, and the lower end is fixedly connected to the middle of the lower square passage 22. The upper end of the left column 23 is fixedly connected to the left end of the upper square passage 21, and the lower end is fixedly connected to the left end of the lower square passage 22. The upper end of the right column 24 is fixedly connected to the right end of the upper square passage 21, and the lower end is fixedly connected to the right end of the lower square passage 22. The support block 26 is fixedly arranged on the upper part of the front side of the middle column 20, and the end of the screw rod 25 is rotatably connected to the support block 26. The upper square passage 21, the lower square passage 22, the left column 23 and the right column 24 constitute a frame to provide support for the power unit 27. The middle column 20 divides the transverse moving part 2 into left and right parts. The two cantilever platform bodies 5 are respectively located on the left and right sides of the transverse moving part 2 to facilitate the movement of the cantilever platform body 5.

[0041] Diagonal braces 6 are fixedly provided under the two cantilever platform bodies 5, and the ends of the two diagonal braces 6 are fixedly connected to the first slider 7 and the second slider 8 respectively. The first slider 7 and the second slider 8 are both slidably connected to the lower square passage 22. The first slider 7 and the second slider 8 support the ends of the diagonal braces 6 on the lower square passage 22 and can slide along the lower square passage 22, so that the diagonal braces 6 can move synchronously with the cantilever platform body 5 and always provide support for the cantilever platform body 5.

[0042] The power unit 27 includes a motor 271 , a steering gear 273 , a gear transmission box 275 and a coupling set. The coupling set includes a first plum blossom coupling 272 and a second plum blossom coupling 274 .

[0043] One of the motors 271 is fixedly connected to the left column 23 via an oblique rod, the other motor 271 is fixedly connected to the right column 24 via an oblique rod, the first plum blossom coupling 272 is fixedly connected to the motor 271, one of the steering gears 273 is fixedly arranged on the front side of the left column 23, and the other steering gear 273 is fixedly arranged on the front side of the right column 24.

[0044] One end of the second plum blossom coupling 274 is fixedly connected to the steering gear 273, and the other end is fixedly connected to the gear transmission box 275. The gear transmission box 275 is fixedly connected to the screw rod 25 and is used to drive the screw rod 25 to rotate. One gear transmission box 275 is fixedly arranged on the front side of the left column 23, and the other gear transmission box 275 is fixedly arranged on the front side of the right column 24.

[0045] It should be noted that two mutually perpendicular and meshing bevel gears are provided inside the gear transmission box 275 , wherein the vertically placed bevel gear is fixed to the screw rod 25 , and the horizontally placed bevel gear is fixed to the end of the second plum blossom coupling 274 .

[0046] The guide wheel part 3 includes a guide wheel box 31, a connecting seat 32, a screw nut 33 and a plurality of guide wheel groups. The guide wheel group is located inside the guide wheel box 31, and the guide wheel group includes a central shaft 34 and an opening and closing guide wheel 35.

[0047] The guide wheel box 31 is slidingly connected to the upper square passage 21, the cantilever platform body 5 is fixed on the guide wheel box 31, one end of the connecting seat 32 is fixedly connected to the guide wheel box 31, and the other end is fixedly connected to the screw nut 33, the screw nut 33 is threadedly connected to the screw 25, the central axis 34 is fixedly arranged in the guide wheel box 31, the opening and closing guide wheel 35 is rotatably arranged on the outer ring of the central axis 34, the opening and closing guide wheel 35 is rollingly connected to the upper square passage 21, and the opening and closing guide wheel 35 can roll along the upper square passage 21.

[0048] There are two screw nuts 33 and two screw rods 25 , and the threads of the two screw rods 25 rotate in opposite directions. When the gear transmission box 275 drives the two screw rods 25 to rotate, the two screw nuts 33 move in opposite directions synchronously.

[0049] After the motor 271 is energized, its output shaft drives the input shaft of the steering gear 273 to rotate through the first plum blossom coupling 272, and the output shaft of the steering gear 273 drives the horizontally placed bevel gear inside the gear transmission box 275 to rotate through the second plum blossom coupling 274, thereby driving the vertically placed bevel gear inside the gear transmission box 275 to rotate, and then drives the screw rod 25 to rotate. When the screw rod 25 rotates, since the screw nut 33 is threadedly connected to the screw rod 25, and the screw nut 33 is fixedly connected to the connecting seat 32, the connecting seat 32 prevents the screw nut 33 from rotating synchronously with the screw rod 25. Therefore, when the screw rod 25 rotates, it drives the screw nut 33 to move left and right on the screw rod 25, and the screw nut 33 drives the guide wheel box 31 to move left and right on the upper square passage 21 through the connecting seat 32. When the guide wheel box 31 moves outward along the upper square passage 21 (such as Figure 7 When the cantilever platform body 5 moves outward (in the direction indicated by the arrow), the guide wheel box 31 drives the cantilever platform body 5 to move synchronously, and the two cantilever platform bodies 5 move outward (as shown by the arrow). Figure 7 When the guide wheel box 31 moves inward along the upper square passage 21 (as shown by the arrow), the distance between the two increases, which is convenient for the aircraft to enter and exit; Figure 7 When the cantilever platform body 5 moves inward (in the direction indicated by the inward arrow), the guide wheel box 31 drives the cantilever platform body 5 to move synchronously, and the two cantilever platform bodies 5 move inward (as shown by the inward arrow). Figure 7 The distance between the two is reduced, making it easier for maintenance workers to get closer to the aircraft.

[0050] In order to prevent the opening and closing guide wheel 35 of the cantilever platform body 5 from colliding during the lateral movement, a travel switch is installed on the upper square passage 21. When the opening and closing guide wheel 35 is about to collide with the middle column 20, the left column 23 or the right column 24, the travel switch will be triggered, the circuit of the motor 271 will be disconnected and it will no longer work, and the opening and closing guide wheel 35 will stop moving, thereby avoiding the occurrence of collision.

[0051] 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 cantilever platform lateral walking mechanism, characterized in that: include: A vertical tail frame (1), the vertical tail frame (1) being fixedly arranged on the ground to provide support for the mechanism, a plurality of stabilizing parts (4) being fixedly arranged on the front side of the vertical tail frame (1), the stabilizing parts (4) comprising a connecting frame (41), a clamping wheel (42) and a stabilizing wheel (43), the connecting frame (41) being fixedly connected to the vertical tail frame (1) by bolts, the stabilizing wheel (43) being rotatably arranged outside the connecting frame (41), and the clamping wheel (42) being rotatably arranged outside the connecting frame (41) and being located above the stabilizing wheel (43); A transverse moving part (2), the transverse moving part (2) being mounted on the front side of the vertical tail frame (1), the transverse moving part (2) comprising an upper square passage (21), two screw rods (25) and two power parts (27), the upper square passage (21) being fixedly mounted on the front side of the vertical tail frame (1), the power part (27) being used to drive the screw rod (25) to rotate, and the screw rod (25) providing power for the guide wheel part (3); There are two guide wheel parts (3), both of which are rollingly arranged on the upper square passage (21), and the guide wheel parts (3) are threadedly connected to the screw rod (25). When the power part (27) drives the screw rod (25) to rotate in a first direction, the guide wheel part (3) moves outward along the screw rod (25), and when the power part (27) drives the screw rod (25) to rotate in a second direction, the guide wheel part (3) moves inward along the screw rod (25).

2. The cantilever platform lateral walking mechanism according to claim 1, characterized in that: The transverse displacement portion (2) further comprises a column group, a lower square passage (22) and a support block (26), wherein the column group comprises a middle column (20), a left column (23) and a right column (24).

3. The cantilever platform lateral walking mechanism according to claim 2, characterized in that: The lower square passage (22) is fixedly arranged on the front side of the vertical tail frame (1) and is located below the upper square passage (21); the upper end of the middle column (20) is fixedly connected to the middle of the upper square passage (21), and the lower end is fixedly connected to the middle of the lower square passage (22).

4. The cantilever platform lateral walking mechanism according to claim 3 is characterized in that: The upper end of the left column (23) is fixedly connected to the left end of the upper square passage (21), and the lower end is fixedly connected to the left end of the lower square passage (22); the upper end of the right column (24) is fixedly connected to the right end of the upper square passage (21), and the lower end is fixedly connected to the right end of the lower square passage (22); the support block (26) is fixedly arranged on the upper part of the front side surface of the middle column (20), and the end of the screw rod (25) is rotatably connected to the support block (26).

5. The cantilever platform lateral walking mechanism according to claim 4, characterized in that: The power unit (27) comprises a motor (271), a steering gear (273), a gear transmission box (275), and a coupling group, wherein the coupling group comprises a first plum blossom coupling (272) and a second plum blossom coupling (274).

6. The cantilever platform lateral walking mechanism according to claim 5, characterized in that: One of the motors (271) is fixedly connected to the left column (23) via an inclined rod, and the other motor (271) is fixedly connected to the right column (24) via an inclined rod; the first plum blossom coupling (272) is fixedly connected to the motor (271); one of the steering gears (273) is fixedly arranged on the front side of the left column (23), and the other steering gear (273) is fixedly arranged on the front side of the right column (24).

7. The cantilever platform lateral walking mechanism according to claim 6, characterized in that: One end of the second plum blossom coupling (274) is fixedly connected to the steering gear (273), and the other end is fixedly connected to the gear transmission box (275). The gear transmission box (275) is fixedly connected to the screw rod (25) and is used to drive the screw rod (25) to rotate. One part of the gear transmission box (275) is fixedly arranged on the front side of the left column (23), and the other part of the gear transmission box (275) is fixedly arranged on the front side of the right column (24).

8. The cantilever platform lateral walking mechanism according to claim 7, characterized in that: The guide wheel portion (3) comprises a guide wheel box (31), a connecting seat (32), a screw nut (33) and a plurality of guide wheel groups. The guide wheel group is located inside the guide wheel box (31). The guide wheel group comprises a central shaft (34) and an opening and closing guide wheel (35).

9. The cantilever platform lateral walking mechanism according to claim 8, characterized in that: The guide wheel box (31) is slidably connected to the upper square passage (21); one end of the connecting seat (32) is fixedly connected to the guide wheel box (31) and the other end is fixedly connected to the screw nut (33).

10. The cantilever platform lateral walking mechanism according to claim 9, characterized in that: The screw nut (33) is threadedly connected to the screw (25), the central shaft (34) is fixedly arranged in the guide wheel box (31), the opening and closing guide wheel (35) is rotatably arranged on the outer ring of the central shaft (34), and the opening and closing guide wheel (35) is rollingly connected to the upper square passage (21).

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