Equipment for prolonging service life of front wheel of airplane

Abstract

The invention relates to equipment for prolonging the service life of an airplane front wheel, and belongs to the field of test flight outfield guarantee. A device for prolonging the service life of an airplane front wheel comprises a wheel shaft rod and a lifting front wheel support. The outer diameter of the axle rod is smaller than the inner diameter of an airplane front wheel axle hole; when in use, the axle rod penetrates through the liftable front wheel bracket and the airplane front wheel axle hole to connect the liftable front wheel bracket and the airplane front wheel axle hole, and the height of the liftable front wheel bracket is adjusted, so that the equipment forms a space for accommodating airplane front wheels. The front wheel has the advantages that the service life of the front wheel is prolonged, and the flight safety of an airplane is guaranteed; the replacement frequency is reduced, and the replacement cost is saved; and the maintenance workload is reduced, and the labor cost is saved.

Description

Technical Field

[0001] The invention relates to equipment for extending the service life of an aircraft front wheel, and belongs to the field of flight test field support. Background Art

[0002] According to field feedback, the front wheel tires of a certain type of aircraft are scrapped and replaced frequently. After analyzing the reasons, it was found that when the aircraft is parked, especially for a long time, the weight of the aircraft causes the front wheels to be under pressure, which can easily cause the steel wires in the tire to deform. When the deformation reaches a certain degree, it will affect the taxiing and landing safety of the aircraft, and it cannot be repaired and can only be scrapped and replaced. Summary of the invention

[0003] The purpose of the present invention is to provide a device for extending the service life of the front wheel of an aircraft and reducing the pressure on the front wheel when the aircraft is parked.

[0004] In order to achieve the above-mentioned purpose, the present invention adopts the following technical scheme: an equipment for extending the service life of an aircraft front wheel, comprising an axle rod and a liftable front wheel bracket; the axle rod is installed on the liftable front wheel bracket, and its outer diameter is smaller than the inner diameter of the aircraft front wheel axle hole; when in use, the axle rod is passed through the liftable front wheel bracket and the aircraft front wheel axle hole to connect the two, and the height of the liftable front wheel bracket is adjusted so that the equipment forms a space to accommodate the aircraft front wheel.

[0005] Preferably, the liftable front wheel bracket includes a bracket, a pillar, and a support plate; the bracket serves as a support for the initial state of the equipment; the column is installed on the bracket, and the bracket can move up and down along the column; there are two support plates, which are relatively installed at both ends of the upper surface of the bracket and are used to install the wheel axle rod.

[0006] Preferably, the bracket includes a left bracket and a right bracket, both of which are L-shaped, are spliced, and are connected and fixed by fasteners; the support plates are respectively installed on the upper surfaces of the left bracket and the right bracket.

[0007] Preferably, the joint portion of the left bracket and the right bracket is a stepped structure with threaded holes formed thereon, and the two are connected and fixed together by screws adapted thereto.

[0008] Preferably, the support pillars are two studs, which are respectively screwed to threaded holes provided on the bracket.

[0009] Preferably, the support plate is triangular in shape, with the bottom fixed to the bracket and the top provided with a through hole, in which the axle rod is installed; the axle rod is located above the center of the bracket.

[0010] Preferably, the outer diameter of one end of the axle rod is larger than the inner diameter of the through hole, and the outer diameter of the other end is smaller than the inner diameter of the through hole, and a limiting member is installed at the end to limit the axle rod in the through hole of the support plate.

[0011] Preferably, the adjustable stroke of the bracket and the column is 200-300 mm.

[0012] Preferably, the wheel axle rod radius is less than 11 mm.

[0013] Working principle: When the aircraft is parked, install the left and right brackets correctly (so that the front wheel of the aircraft is located in the center of the brackets), then pass the axle rod through the brackets and the axle holes of the front wheel of the aircraft to connect the two, and finally push the brackets to a suitable height. At this time, most or even all of the pressure on the tire is transferred to the brackets, thereby reducing the deformation of the steel wire in the tire and extending the service life of the tire.

[0014] Compared with the prior art, the present invention has the following advantages: increasing the service life of the front wheel, ensuring the flight safety of the aircraft; reducing the replacement frequency, saving the replacement cost; reducing the maintenance workload, saving the labor cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the front wheel tire structure in the background technology of the present invention; Figure 2 It is a schematic diagram of the structure of an embodiment of the present invention; Figure 3 is a side view of an embodiment of the present invention; Figure 4 is a side view of an embodiment of the present invention; Figure 1 Middle, 1. front tire; 2. axle hole; Figure 2-4 In the middle, 3, right bracket; 4, left bracket; 5, support; 6, screw; 7, axle rod. DETAILED DESCRIPTION

[0016] It should be noted that the terms “upper”, “lower”, “left”, “right”, etc. are described according to the drawings or the common usage status, and do not constitute limitations to the present invention.

[0017] The following is combined with Figure 2-3 The present invention is further described in detail: an equipment for extending the service life of an aircraft front wheel, comprising an axle rod 7 and a liftable front wheel bracket; the axle rod 7 is installed on the liftable front wheel bracket, and its outer diameter is smaller than the inner diameter of the aircraft front wheel axle hole; when in use, the axle rod 7 is passed through the liftable front wheel bracket and the aircraft front wheel axle hole to connect the two, and the height of the liftable front wheel bracket is adjusted so that the equipment forms a space to accommodate the aircraft front wheel.

[0018] As a preferred implementation scheme of this embodiment, the liftable front wheel bracket includes a bracket, a pillar 5, and a support plate; the bracket serves as a support for the initial state of the equipment; the column 5 is installed on the bracket, and the bracket can move up and down along the column 5; there are two support plates, which are relatively installed at both ends of the upper surface of the bracket and are used to install the wheel axle rod 7.

[0019] As a preferred implementation scheme of this embodiment, the bracket includes a left bracket 4 and a right bracket 3. The horizontal planes of the left bracket 4 and the right bracket 3 are both L-shaped. The two are spliced ​​and connected and fixed by fasteners. In this embodiment, the splicing part of the left bracket 4 and the right bracket 3 is a stepped structure, which is provided with threaded holes, and the two are connected and fixed together by screws 6 adapted thereto; support plates are respectively installed on the upper surfaces of the left bracket 4 and the right bracket 3; and supporting feet are set at the four corners of the bottom of the left bracket and the right bracket.

[0020] As a preferred implementation of this embodiment, the support pillars 5 are two studs, which are screwed to the threaded holes provided on the left bracket 4 and the right bracket 3 respectively.

[0021] As a preferred implementation scheme of this embodiment, the support plate is triangular in shape, with the bottom plane fixed to the bracket and a through hole provided on the top, in which the axle rod 7 is installed; the outer diameter of one end of the axle rod 7 is larger than the inner diameter of the through hole, and the outer diameter of the other end is smaller than the inner diameter of the through hole, and a limiting member is installed at the end thereof, thereby limiting the axle rod 7 in the through hole of the support plate; the through hole of the support plate is located at the center position of one side of the left bracket 4 and the right bracket 3, so that the axle rod 7 is located above the center of the bracket.

[0022] As a preferred implementation of this embodiment, the adjustable stroke of the bracket and the column 5 is 200-300 mm; it can withstand no less than 600 kg; at the same time, the radius of the wheel axle is less than 11 mm.

[0023] In this embodiment, all metal materials need to be treated to prevent rust.

[0024] Directions: 1. Assemble the left bracket 4 and the right bracket 3 on both sides of the front tire and tighten the screws 6; 2. Use the axle rod 7 to connect the bracket and the tire axle of the front wheel of the aircraft in series; 3. Use a wrench to raise the support column 5 of the bracket to the appropriate position.

[0025] The invention is simple and practical, and is operable in the flight field. By using the product, the pressure on the tire can be effectively reduced or even eliminated, and the service life can be increased.

[0026] The above embodiments are only preferred implementations of the present invention and do not constitute a limitation of the present invention. Any extensions and modifications made by ordinary technicians in this field without departing from the principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A device for extending the service life of an aircraft front wheel, characterized in that: It includes a wheel axle rod and a liftable front wheel bracket; the wheel axle rod is installed on the liftable front wheel bracket, and its outer diameter is smaller than the inner diameter of the aircraft front wheel axle hole; when in use, the wheel axle rod is passed through the liftable front wheel bracket and the aircraft front wheel axle hole to connect the two, and the height of the liftable front wheel bracket is adjusted so that the equipment forms a space to accommodate the aircraft front wheel.

2. The equipment for extending the service life of the front wheel of an aircraft according to claim 1, characterized in that: The liftable front wheel bracket includes a bracket, a pillar, and a support plate; the bracket serves as a support for the initial state of the equipment; the column is installed on the bracket, and the bracket can move up and down along the column; there are two support plates, which are relatively installed at both ends of the upper surface of the bracket and are used to install the wheel axle rod.

3. The equipment for extending the service life of the front wheel of an aircraft according to claim 2, characterized in that: The bracket includes a left bracket and a right bracket, both of which are L-shaped, are spliced, and are connected and fixed by fasteners; support plates are respectively installed on the upper surfaces of the left bracket and the right bracket.

4. The equipment for extending the service life of the front wheel of an aircraft according to claim 3, characterized in that: The joint part of the left bracket and the right bracket is a stepped structure, on which threaded holes are opened, and the two are connected and fixed together by screws adapted thereto.

5. The equipment for extending the service life of the front wheel of an aircraft according to claim 2, characterized in that: The support pillars are two studs, which are respectively screwed to threaded holes arranged on the bracket.

6. The equipment for extending the service life of the front wheel of an aircraft according to claim 2, characterized in that: The support plate is triangular in shape, the bottom is fixed to the bracket, the top is provided with a through hole, and the wheel axle rod is installed in the through hole; the wheel axle rod is located above the center of the bracket.

7. The equipment for extending the service life of the front wheel of an aircraft according to claim 6, characterized in that: The outer diameter of one end of the axle rod is larger than the inner diameter of the through hole, and the outer diameter of the other end is smaller than the inner diameter of the through hole. A limiting piece is installed at the end to limit the axle rod in the through hole of the support plate.

8. The equipment for extending the service life of the front wheel of an aircraft according to claim 2, characterized in that: The adjustable stroke of the bracket and the column is 200-300mm.

9. The equipment for extending the service life of the front wheel of an aircraft according to claim 1, characterized in that: The wheel axle rod radius is less than 11mm.

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