CN210681188U - Cantilever type dismounting trailer for aircraft pod - Google Patents

Abstract

The application relates to a cantilever type dismouting trailer for aircraft nacelle, it includes: a chassis having a depressed space; the front support plate and the rear support plate are arranged at the front end and the rear end of the chassis in parallel; the rollers are connected to the chassis through lead screws, and the ground clearance of the chassis can be adjusted through the lead screws; the adjusting mechanism comprises a cross beam, a rotating shaft, a lifting mechanism and a driving mechanism, wherein two ends of the cross beam are respectively connected with a front support plate and a rear support plate which are connected to the lifting mechanism through the rotating shaft; the traction rod is connected to the front end of the chassis and used for drawing the trailer. This application has reduced the whole height of dismouting trailer through the height that reduces the chassis and design to the front and back extension board, but liftable chassis and arc extension board have solved the difficult problem of narrow and small space dismouting aircraft nacelle under the fuselage.

Description

Cantilever type dismounting trailer for aircraft pod

Technical Field

The application belongs to the technical field of airplane ground support, and particularly relates to a cantilever type disassembly and assembly trailer for an airplane pod.

Background

The nacelle usually contains some equipment or devices which are required to be hung on a hanging beam under the fuselage of the aircraft, the lower fuselage pylon is usually at a low height from the ground, the lowest point when the nacelle is installed under the fuselage is about 120mm from the ground, and the installation space under the fuselage is small due to the large external size of the nacelle. In the prior art, a scissor lift rigging device is usually used to mount and dismount the pod, but because the initial height of the scissor lift rigging device plus the overall height of the pod assembly is far greater than the aircraft pylon to ground height. In order to meet the needs of nacelle disassembly and assembly and maintenance, equipment capable of disassembling and assembling the nacelle is needed to solve the problem of disassembling and assembling the nacelle in a narrow space under a machine body.

Disclosure of Invention

It is an object of the present application to provide a cantilevered racking cart for aircraft pods to address or mitigate at least one problem of the background art.

The technical scheme of the application is as follows: a cantilevered racking cart for an aircraft pod, said cart comprising:

a chassis having a depressed space;

the front support plate and the rear support plate are arranged at the front end and the rear end of the chassis in parallel, so that the arch spaces of the front support plate and the rear support plate and the sunken space of the chassis form an accommodating space for accommodating the aircraft pod;

the rollers are connected to the chassis through lead screws, and the ground clearance of the chassis can be adjusted through the lead screws;

the adjusting mechanism comprises a cross beam, a rotating shaft, a lifting mechanism and a driving mechanism, wherein two ends of the cross beam are respectively connected with a front support plate and a rear support plate, the cross beam is connected to the lifting mechanism through the rotating shaft, the driving mechanism is arranged on the chassis and connected to the lifting mechanism so as to drive the lifting mechanism to move along a guide rail arranged on the chassis, and the driving mechanism is used for enabling the front support plate and the rear support plate to turn over so as to adjust the angle of the aircraft pod; and

the traction rod is connected to the front end of the chassis and used for drawing the trailer.

In an embodiment of the present application, the front stay and the rear stay have the same circular arc shape.

In one embodiment of the present application, the front support plate and the rear support plate have rubber layers on the inner surfaces of the arc shapes.

In an embodiment of the application, the axis of rotation corresponds to the centre of gravity of the aircraft pod.

In one embodiment of the application, the cross beam can be rotated about the axis of rotation to adjust the parking angle of the aircraft pod.

In one embodiment of the present application, the lifting mechanism has a bearing mount on each side for mounting a bearing.

In one embodiment of the present application, the drive mechanism is a linear drive mechanism, and the linear drive mechanism includes a hydraulic ram or a linear motor.

In one embodiment of the present application, the roller is a universal wheel.

In this application embodiment, still include guider, guider includes first limiting plate and second limiting plate, first limiting plate and second limiting plate set up in the chassis rear end for the gyro wheel of restriction chassis rear end.

The utility model provides a cantilever type dismouting trailer has reduced the whole height of dismouting trailer through the height that reduces the chassis and to design around extension board (layer board), but the difficult problem of narrow and small space dismouting aircraft nacelle under the fuselage has been solved to liftable chassis and arc extension board, has promoted the function and the work efficiency of trailer.

Drawings

In order to more clearly illustrate the technical solutions provided by the present application, the following briefly introduces the accompanying drawings. It is to be expressly understood that the drawings described below are only illustrative of some embodiments of the invention.

Fig. 1 is a front view of a cantilevered demountable trailer structure for an aircraft pod according to the present application.

Fig. 2 is a rear view of the cantilevered demountable trailer structure for an aircraft pod of the present application.

Fig. 3 is a schematic diagram of a front plate structure in the present application.

Fig. 4 is a schematic view of a cross beam structure in the present application.

Fig. 5 is a schematic structural diagram of the lifting mechanism in the present application.

Reference numerals:

100-cantilever type dismounting and mounting of the trailer;

110-a chassis;

121-rear support plate, 122-front support plate;

130-roller, 131-screw rod;

140-a guide device, 141-a first limit plate, 142-a second limit plate;

150-a drawbar;

160-a beam;

170-a rotating shaft;

180-lifting mechanism, 181-guide rail;

190 — a drive mechanism.

Detailed Description

In order to make the implementation objects, technical solutions and advantages of the present application clearer, the technical solutions in the embodiments of the present application will be described in more detail below with reference to the drawings in the embodiments of the present application.

As shown in fig. 1 to 5, in order to solve the problems of the background art, the present application provides a cantilever-type demountable trailer 100 for an aircraft pod, which mainly includes a chassis 110, a front support plate 122, a rear support plate 121, rollers 130, a drawbar 150, an adjusting mechanism, and the like. The chassis 110 is of a riverbed structure, which allows the chassis 110 to form a sunken space that reduces the height of the chassis 110, and thus the height of the aircraft pod from the ground. The plurality of rollers 130 are distributed on the chassis 110, in this application, the number of the rollers 130 is four, and the rollers are distributed at four corners of the chassis 110, a longitudinal (or vertical) lead screw 131 is arranged on a fork of each roller 130, the lead screw 131 is connected with the chassis 110, and the overall height of the chassis 110 can be adjusted and controlled through the lead screw 131. The adjustable elevation of the pallet's chassis 110 may reduce the height of the pallet to some extent, but still does not solve the problem of the initial height of the pallet. Therefore, according to the appearance of the airplane pod, a front support plate 122 and a rear support plate 121 are designed, the appearance of the front support plate 122 and the appearance of the rear support plate 121 are approximately equivalent to the appearance of the airplane pod, the front support plate 122 and the rear support plate 121 both form a semi-circular arc shape, the semi-circular arc-shaped space and the sunken space of the chassis 110 are combined, the initial height of the trailer can be further reduced, and the airplane pod with large size can be dismounted in a narrow space below the airplane body. The adjusting mechanism comprises a cross beam 160, a rotating shaft 170, a lifting mechanism 180 and a driving mechanism 190, the front support plate 122 and the rear support plate 121 are arranged on the chassis 110 in a substantially parallel manner, one end of each of the front support plate and the rear support plate is hinged with the chassis 110, the other end of each of the front support plate and the rear support plate is hinged with two ends of the cross beam 160, the middle of the cross beam 160 is provided with a mounting hole 161, the cross beam 160 is connected with the lifting mechanism 180 through the rotating shaft 170 arranged in the mounting hole 161, and the lifting mechanism 180 is correspondingly provided with a mounting hole 183 as shown in fig. Bearing seats 182 for mounting rolling bearings are arranged on both sides of the lifting mechanism 180, so that the lifting mechanism 180 can move up and down along two vertical guide rails under the action of a driving mechanism 190, and the aircraft pod arranged on the front and rear support plates can be adjusted in angle. The elevation height of the elevating mechanism 180 is mainly determined by the stroke of the driving mechanism 190 installed between the chassis 110 and the elevating mechanism 180.

In the present application, the drive mechanism 190 is generally a linear drive. For example, in some embodiments, the drive mechanism 190 may be a hydraulic ram or a linear motor.

In the present application, the shaft 170 is substantially horizontal at a position corresponding to the center of gravity of the pod, and the beam 160 can swing about the shaft 170, so that the pod and the airplane can be integrally formed into the same parking angle, thereby facilitating the installation of the pod.

In some embodiments of the present application, the roller 130 may be a wheel with universal, directional and braking functions to facilitate movement under the fuselage. When the aircraft pod is disassembled and assembled under the fuselage, the lower plane of the chassis 110 can be lowered to a certain height from the ground to meet the disassembling and assembling requirements. Meanwhile, when the trailer is transported for a short distance, the chassis 110 of the trailer can be lifted to a height not less than a predetermined height from the ground by adjusting the screw 131 on the roller 130.

In order to solve the problem that the trailer cannot be towed due to the fact that four wheels are universal wheels when the trailer is towed, the trailer of the present application further includes a guiding device 140, the guiding device 140 includes a first limiting plate 141 and a second limiting plate 142, and the first limiting plate 141 and the second limiting plate 142 are disposed at the rear end of the chassis 110 (opposite direction of the tow bar 150). The guide devices 140 are arranged on the two rear wheels of the trailer, so that when the trailer is at any height, the idler wheels 130 can be set as directional wheels or universal wheels according to use requirements, and the problems of height lifting and transportation traction of the trailer are solved.

In some embodiments, rubber layers that are both anti-slip and vibration damping are disposed on the inner arcuate surfaces 1211 and 1221 of the front plate 122 and the rear plate 121. The rubber layer needs to be a certain distance above the upper plane of the recessed space of the chassis 110 to ensure that the aircraft pod does not collide and rub against the chassis 110.

The cantilever type disassembly and assembly trailer for the aircraft pod can reduce the overall height of the disassembly and assembly trailer, and the difficult problem of disassembling and assembling the aircraft pod in a narrow space under the aircraft body can be solved by lifting the chassis and the arc-shaped support plate.

The method and the device solve the problem of replacing the aircraft pod (containing the data recorder) on the trailer under the outfield environment, improve the function and efficiency of the trailer, shorten the data export time from several hours to 0.2 hour, and shorten the preparation time for the aircraft to move again by 10-30 times compared with the prior preparation time.

The above description is only for the specific embodiments of the present application, but the scope of the present application is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present application should be covered within the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims (9)

1. A cantilevered racking cart for an aircraft pod, said cart comprising:

a chassis (110), the chassis (110) having a depressed space;

the aircraft nacelle structure comprises a front support plate (122) and a rear support plate (121) which are arc-shaped, wherein the front support plate (122) and the rear support plate (121) are arranged at the front end and the rear end of the chassis (110) in parallel, so that the arch-shaped spaces of the front support plate (122) and the rear support plate (121) and the sunken space of the chassis (110) form a containing space for containing the aircraft nacelle;

a plurality of rollers (130), wherein the rollers (130) are connected to the chassis (110) through lead screws (131), and the ground clearance of the chassis (110) can be adjusted through the lead screws (131);

the adjusting mechanism comprises a cross beam (160), a rotating shaft (170), a lifting mechanism (180) and a driving mechanism (190), two ends of the cross beam (160) are respectively connected with a front support plate (122) and a rear support plate (121), the cross beam (160) is connected to the lifting mechanism (180) through the rotating shaft (170), the driving mechanism (190) is arranged on the chassis (110) and connected to the lifting mechanism (180) so as to drive the lifting mechanism (180) to move along a guide rail (181) arranged on the chassis (110) and be used for enabling the front support plate (122) and the rear support plate (121) to turn over to adjust the angle of the aircraft pod; and

the traction rod (150) is connected to the front end of the chassis (110) and used for drawing the trailer.

2. The cantilever detachable trailer for aircraft pods according to claim 1, wherein the front support plate (122) and the rear support plate (121) are of the same circular arc shape.

3. The cantilevered skid for an aircraft pod as set forth in claim 2 wherein said arcuate inner surfaces (1211,1221) of said front and rear brackets (122, 121) are rubber-coated.

4. The cantilevered skid for an aircraft pod as set forth in claim 1, wherein said shaft (170) corresponds to a center of gravity of the aircraft pod.

5. The cantilevered skid for aircraft pods as recited in claim 1, wherein said cross-beam (160) is rotatable about said axis of rotation (170) to adjust a parking angle of said aircraft pod.

6. The cantilever crane according to claim 1, wherein the lifting mechanism (180) has a bearing (182) for mounting a bearing on both sides.

7. The cantilevered racking cart for aircraft pods as recited in claim 1, wherein said drive mechanism (190) is a linear drive mechanism comprising a hydraulic ram or a linear motor.

8. The cantilevered skid for an aircraft pod as set forth in claim 1, wherein said rollers (130) are gimbaled wheels.

9. The cantilevered demountable trailer for an aircraft pod according to claim 8, further comprising a guide (140), said guide (140) comprising a first stop plate (141) and a second stop plate (142), said first stop plate (141) and said second stop plate (142) being disposed at a rear end of said chassis (110) for limiting wheels at the rear end of said chassis.

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