Aircraft nose landing gear maintenance platform

Abstract

The utility model provides a maintenance platform for a nose landing gear of an airplane, which belongs to the field of airplane maintenance equipment and aims to solve the problems of inconvenience in transition, difficulty in attachment of the nose landing gear of the airplane and disorder in storage of tools. Shear fork supports are connected to the left outer side wall and the right outer side wall of the movable base, auxiliary balance bases are connected to the tail ends of the shear fork supports, a working platform is connected to the top of the movable base, the telescopic end of a lifting oil cylinder is fixedly connected to the top of the movable base, and tool storage boxes are connected to the left side and the right side of the working platform in a hung mode; the aircraft nose landing gear maintenance platform is endowed with excellent maneuverability through the moving wheels at the bottoms of the moving base and the auxiliary balance base, the platform can be rapidly transferred in various complex sites, the equipment transferring time and the labor cost are greatly saved, the concave structure of the moving base provides a stable foundation and can be attached to tires of an aircraft nose landing gear, and the maintenance efficiency is improved. And the supporting oil cylinders on the front side and the rear side stretch out during working, the contact area is increased, and operation safety is guaranteed.

Description

TECHNICAL FIELD

[0001] The utility model relates to an aircraft maintenance equipment technical field especially relates to an aircraft front landing gear maintenance platform. BACKGROUND

[0002] The aircraft front landing gear plays a key role in the process of the aircraft's taking off and landing, and its performance is directly related to flight safety. In the daily maintenance and repair work of the aircraft, the front landing gear needs to be checked, repaired and maintained comprehensively and carefully, so a maintenance platform needs to be used. The existing aircraft maintenance platform has the problems of poor design of the moving wheels, difficulty in moving in complex sites, time-consuming and labor-consuming in transfer, and the base structure cannot fit the landing gear tires and is insufficient in support, is easy to displace and tilt, threatens the operation safety, is not accurate in height and level adjustment, is difficult to adapt to different models of aircrafts, the access to the platform is unsafe and inconvenient, and the tool storage is messy, which affects the efficiency and the neatness of the platform. SUMMARY

[0003] The utility model aims at providing an aircraft front landing gear maintenance platform to solve the problems of poor design of the moving wheels, difficulty in moving in complex sites, time-consuming and labor-consuming in transfer, and the base structure cannot fit the landing gear tires and is insufficient in support, is easy to displace and tilt, is not accurate in height and level adjustment, is difficult to adapt to different models of aircrafts, the access to the platform is unsafe and inconvenient, and the tool storage is messy, which affects the efficiency and the neatness of the platform.

[0004] The purpose and effect of the aircraft front landing gear maintenance platform are achieved by the following specific technical means.

[0005] An aircraft front landing gear maintenance platform, wherein the aircraft front landing gear maintenance platform comprises a mobile base; the left and right outer side walls of the mobile base are connected with scissor supports, the ends of the scissor supports are connected with auxiliary balance bases, the top of the mobile base is connected with a working platform, the top of the mobile base is fixedly connected with the telescopic end of a lifting cylinder, the outer cylinder bottom of the lifting cylinder is fixedly connected to the working platform, and the left and right sides of the working platform are hung with tool storage boxes.

[0006] Further, the mobile base is concave, two support cylinders are symmetrically installed on the front and rear sides of the mobile base, an inner recessed groove is formed in the middle of the left and right outer side walls of the mobile base, a hinge shaft is fixedly installed at the middle of the bottom of the inner recessed groove, a telescopic cylinder is connected to the hinge shaft, and the top telescopic end of the telescopic cylinder is hinged to the side horizontal rod of the scissor support close to the mobile base.

[0007] Further, a foot pedal groove is equidistantly formed in the middle of the rear side wall of the mobile base, a climbing ladder is fixedly installed at the bottom of the rear side of the working platform, and a lifting cylinder is fixedly installed at the top of each end angle of the working platform.

[0008] Further, the top of the work platform is symmetrically provided with two connecting clamping grooves on the left and right sides, and the bottom of the middle of the opposite side of the two tool storage boxes is fixedly provided with a connecting clamping block, which is inserted into the connecting clamping groove.

[0009] Further, the scissors support is composed of two "V"-shaped supports staggered and combined, and the hinge joints of the two scissors supports are connected with connecting arms.

[0010] Further, the bottom of the moving base is fixedly provided with four moving wheels in a rectangular array, and the bottom of the auxiliary balance base is symmetrically fixedly provided with two moving wheels.

[0011] The utility model provides a kind of aircraft front landing gear maintenance platform, with following beneficial effects:

[0012] 1. by the moving wheel of moving base and auxiliary balance base bottom, give platform outstanding mobility, can be quickly transferred in various complex sites, greatly save equipment transfer time and labor cost, the "concave" shape structure of moving base provides stable foundation, can also be close to aircraft front landing gear tire, it is convenient to approach operation, the support oil cylinder of front and rear sides is extended when working, increase contact area, prevent displacement and inclination, guarantee operation safety.

[0013] 2. Secondly, the lifting oil cylinder of work platform can finely adjust height and levelness, adapt to different model aircraft landing gear demand, ensure maintenance precision, climbing ladder and foot groove facilitate maintenance personnel to safely go up and down platform, the accurate hanging design of tool storage box and work platform provides orderly storage space, improves work efficiency and keeps platform clean, scissors support and auxiliary balance base cooperate, adjust balance in real time when platform is lifted, prevent rollover, and platform can be short-distance finely adjusted by bottom moving wheel in unfolded or folded state. DRAWINGS

[0014] Figure 1 It is right front side shaft structure schematic view of the utility model;

[0015] Figure 2 It is left rear side shaft structure schematic view of the utility model;

[0016] Figure 3 It is whole split structure schematic view of the utility model;

[0017] Figure 4 It is rear side shaft structure schematic view of the utility model moving base;

[0018] Figure 5 It is rear side shaft structure schematic view of the utility model work platform;

[0019] Figure 6 It is split structure schematic view of the utility model scissors support and auxiliary balance base.

[0020] In the diagram, the correspondence between component names and drawing numbers is as follows:

[0021] 1. Movable base; 101. Inner groove; 102. Hinge shaft; 103. Foot pedal groove; 2. Movable wheels; 3. Support cylinder; 4. Work platform; 401. Connecting slot; 402. Climbing ladder; 5. Lifting cylinder; 6. Tool storage box; 601. Connecting block; 7. Scissor lift bracket; 701. Connecting arm; 8. Telescopic cylinder; 9. Auxiliary balance base. Detailed Implementation

[0022] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples.

[0023] Example 1:

[0024] As attached Figure 1 To be continued Figure 6 As shown:

[0025] This utility model provides an aircraft nose landing gear maintenance platform, comprising: a movable base 1; scissor lift brackets 7 are connected to the left and right outer walls of the movable base 1, and auxiliary balancing bases 9 are connected to the ends of the scissor lift brackets 7; a work platform 4 is connected to the top of the movable base 1; the telescopic end of a lifting cylinder 5 is fixedly connected to the top of the movable base 1; the bottom of the outer cylinder of the lifting cylinder 5 is fixedly connected to the work platform 4; tool storage boxes 6 are hung on the left and right sides of the work platform 4; the movable base 1 is concave; two support cylinders 3 are symmetrically installed on the front and rear sides of the movable base 1; an inwardly recessed groove 101 is formed in the middle of the left and right outer walls of the movable base 1; a hinge shaft 102 is fixedly installed in the middle of the bottom of the groove 101; a telescopic cylinder 8 is connected to the hinge shaft 102; the top telescopic end of the telescopic cylinder 8 is hinged to the crossbar of the scissor lift bracket 7 near the movable base 1; specifically, the movable base 1 and the auxiliary balancing base... The bottom casters 2 give the entire maintenance platform excellent mobility. Whether on a busy airport runway or in a complex hangar environment, the platform can be easily pushed or towed and quickly transferred to different aircraft maintenance positions, greatly saving time and labor costs for equipment transfer. The unique concave structure of the mobile base 1 not only lays a solid foundation for the entire aircraft nose landing gear maintenance platform, but also cleverly plans the space to wrap around the aircraft nose landing gear tires so that the maintenance platform can be closer to the aircraft nose landing gear. The support cylinders 3 symmetrically distributed on the front and rear sides of the mobile base 1 extend and make close contact with the ground during operation, thereby preventing the mobile base 1 from shifting and effectively resisting the risk of tilting, ensuring operational safety. The inner grooves 101 and hinge shafts 102 on the left and right outer walls of the mobile base 1 act as precision interfaces, providing accurate connection points for the scissor lift bracket 7 and telescopic cylinder 8, ensuring that all components work together.

[0026] The foot trough 103 is equidistantly arranged in the middle of the rear side wall of the moving base 1, the climbing ladder 402 is fixedly installed at the bottom of the rear side of the working platform 4, the lifting oil cylinder 5 is fixedly installed at the top of the working platform 4 at four end angles, the height and the levelness of the working platform 4 are finely adjusted through the cooperative work of the lifting oil cylinder 5, so as to cope with the height difference of different models of aircraft landing gears, and the accurate level during maintenance operation can be ensured, the climbing ladder 402 can conveniently enable the maintenance personnel to go up and down the working platform 4 and provide a reliable path for vertical movement of the maintenance personnel, the foot trough 103 of the rear side wall of the moving base 1 provides an additional support point when the maintenance personnel climbs, so that each step of climbing is more stable, and the convenience and safety of going up and down the platform are effectively improved, and the working platform 4 is a standing platform for the maintenance personnel, and provides a spacious and safe operation space for maintenance of the front landing gear of the aircraft.

[0027] The two tool storage boxes 6 are fixedly installed at the bottom of the middle of the opposite side of the working platform 4, the connecting clamping block 601 is inserted into the connecting clamping groove 401, and the specific effect is that the tool storage box 6 is accurately matched with the connecting clamping groove 401 on the working platform 4 through the connecting clamping block 601, is stably hung on the two sides of the working platform 4, provides an orderly storage space for various tools and parts required for maintenance of the front landing gear of the aircraft, enables the maintenance personnel to find and use the required items in the first time, significantly improves the work efficiency, and at the same time keeps the working platform 4 clean and orderly, avoids the inconvenience caused by tool disorder.

[0028] The two scissors supports 7 are formed by staggered combination of two “V” supports, the connecting arm 701 is connected to the hinge joint of the two scissors supports 7, the four moving wheels 2 are fixedly installed at the bottom of the moving base 1 in a rectangular array, and the two moving wheels 2 are fixedly installed at the bottom of the auxiliary balance base 9 in a symmetrical manner, the two “V” supports are staggered combined, like a flexible mechanical joint, are driven by the telescopic oil cylinder 8, are freely stretched and contracted, through cooperation of the scissors support 7 and the auxiliary balance base 9, balance is adjusted in real time during lifting of the working platform 4, side turning is prevented, and the moving wheels 2 at the bottom also enable the platform to be easily adjusted for a short distance in the unfolded or folded state.

[0029] The specific use mode and effect of the embodiment are as follows:

[0030] In use, when the front landing gear of the aircraft needs to be repaired, the maintenance platform is pushed or pulled, and the platform is moved to a suitable position near the front landing gear of the aircraft by using the moving base 1 and the moving wheels 2 at the bottom of the auxiliary balance base 9. When the platform is close to the front landing gear of the aircraft, pay attention to the position of the "concave" structure of the moving base 1 corresponding to the position of the landing gear tire, so that it can better approach the landing gear. After reaching the designated position, start the support oil cylinder 3 on both sides of the moving base 1 to extend and tightly contact with the ground, increase the contact area of the platform with the ground, prevent the moving base 1 from moving, and ensure the stability of the platform during maintenance operation. Then, under the drive of the telescopic oil cylinder 8, the auxiliary balance base 9 is pushed out from the left and right sides of the moving base 1 through the scissor bracket 7. During the lifting of the working platform 4, the balance is adjusted in real time to prevent tilting. According to the actual height of the front landing gear of the aircraft, start the lifting oil cylinder 5 to finely adjust the height and levelness of the working platform 4, so as to cope with the height difference of different types of aircraft landing gears and ensure the accurate level during maintenance operation. Maintenance personnel climb the ladder 402 to board the working platform 4. After the working platform 4 is lifted, the foot trough 103 on the back wall of the moving base 1 can be used as a support point during climbing to ensure safe and convenient boarding of the platform. After the maintenance is completed, the same way is used to return to the ground safely by using the climbing ladder 402 and the foot trough 103. After the maintenance personnel board the working platform 4, they can quickly take the tools and parts needed for maintenance from the tool storage boxes 6 hung on the left and right sides of the platform, and put them back into the tool storage boxes 6 after use. Keep the working platform 4 clean and orderly. After completing the maintenance work, first lower the working platform 4 to the lowest position, then retract the support oil cylinder 3, and push or pull the maintenance platform to move it away from the maintenance site by using the moving wheels 2.

[0031] Example two:

[0032] By installing adjustable angle LED lighting fixtures on the edges of the working platform 4 and the auxiliary balance base 9, these fixtures are powered by built-in batteries or connected to the hangar power supply. When performing maintenance work, maintenance personnel can adjust the angle of the lamps according to actual needs to illuminate each maintenance part of the front landing gear of the aircraft, avoiding the influence of light on maintenance accuracy and efficiency, especially suitable for checking and repairing internal fine parts of the landing gear.

Claims

1. An aircraft nose landing gear servicing platform characterised in that: Including mobile base (1), both sides of the left and right outer side wall of mobile base (1) are connected with scissor support (7), the end of scissor support (7) is connected with auxiliary balance base (9), the top of mobile base (1) is connected with work platform (4), the telescopic end of lifting oil cylinder (5) is fixedly connected to the top of mobile base (1), the outer cylinder bottom of lifting oil cylinder (5) is fixedly connected to work platform (4), tool storage box (6) is hung to the left and right sides of work platform (4).

2. An aircraft nose landing gear servicing platform according to claim 1, wherein: The mobile base (1) is concave, two support oil cylinders (3) are symmetrically installed on the front and rear sides of mobile base (1), a concave groove (101) is formed in the middle of the left and right outer side walls of mobile base (1), a hinge shaft (102) is fixedly installed in the middle of the bottom of concave groove (101), a telescopic oil cylinder (8) is connected to the hinge shaft (102), and the top telescopic end of telescopic oil cylinder (8) is hingedly connected to the side crossbar of scissor support (7) close to mobile base (1).

3. An aircraft nose landing gear servicing platform as claimed in claim 1 wherein: The middle of the rear side wall of mobile base (1) is equally provided with a foot trough (103), a climbing ladder (402) is fixedly installed at the bottom of the rear side of work platform (4), and lifting oil cylinders (5) are fixedly installed at the top of work platform (4).

4. An aircraft nose landing gear servicing platform as claimed in claim 1 wherein: The top of work platform (4) is symmetrically provided with two connecting grooves (401) on the left and right sides, and a connecting block (601) is fixedly installed at the bottom of the middle of the opposite side of the two tool storage boxes (6), and the connecting block (601) is inserted into the connecting groove (401).

5. An aircraft nose landing gear servicing platform as claimed in claim 1 wherein: The scissor support (7) is composed of two V-shaped supports staggered, and the hinge connection parts of the two scissor supports (7) are connected with connecting arms (701).

6. An aircraft nose landing gear servicing platform as claimed in claim 1 wherein: The bottom of mobile base (1) is fixedly installed with four mobile wheels (2) in a rectangular array, and the bottom of auxiliary balance base (9) is symmetrically fixedly installed with two mobile wheels (2).

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