Airplane universal fulcrum rapid lifting stabilizing device

Abstract

The utility model discloses a quick lifting stabilizing device for a general fulcrum of an airplane, which belongs to the technical field of aviation auxiliary equipment and comprises a hand wheel positioning nut, a hand wheel support rod, a one-way thrust bearing, a bearing base outer cylinder and the like. A groove is formed in the periphery of the lower part of the hand wheel positioning nut, a groove is formed in the top end of the bearing base outer cylinder, and a semicircular boss is formed on the inner wall of the top end of the groove; the hand wheel positioning nut and the one-way thrust bearing are installed in a groove of the bearing base outer cylinder, a groove of the hand wheel positioning nut and a semi-arc boss of the bearing base outer cylinder are matched for limiting, and the assembly and the lead screw supporting column are assembled to achieve vertical lifting. The lifting device is simple and practical in structure, easy and fast to operate, light, stable, flexible in lifting and capable of rapidly moving to a maintenance site, and heat guarantee maintenance efficiency is improved.

Description

Technical Field

[0001] This utility model belongs to the field of aviation auxiliary equipment technology and relates to a general-purpose aircraft pivot rapid lifting and stabilization device. Background Technology

[0002] After disassembly, components such as the vertical tail, tail fin, and wings of a certain type of aircraft require temporary and maintenance storage (from the finished product area to the maintenance area). The surfaces of the vertical tail, tail fin, and wings are protected with a special coating, supported by 3 to 5 anchor points (5 points per group), and the overall end faces of the vertical tail, tail fin, and wings are repaired. During maintenance, the operating height needs to be freely adjusted to accommodate the height of the maintenance personnel (standing maintenance eliminates the need to bend over). Furthermore, during ascent and descent, damage to the coating from top rotation should be avoided as much as possible. In existing technology, there is no dedicated storage device for the disassembled vertical tail, tail fin, and wings of this type of aircraft; they are typically stored directly on tabletops or flatbeds. This method easily damages the coating after storage, and maintenance personnel must adopt bending or squatting postures, causing fatigue and increasing the likelihood of fatigue-related errors in maintenance. Utility Model Content

[0003] This utility model provides a universal fulcrum rapid lifting and stabilization device for aircraft, used for parking and lifting adjustments of large-area components such as vertical tail, tail fin, and wings. It can quickly, stably, and effectively stabilize lifting and lowering, is lightweight and flexible in relocation (can be carried by a single person), and lifts and lowers rapidly. The hand-controlled butterfly nut controls the slotted screw for rapid directional lifting and lowering, self-locking, and provides double protection for the product coating and body without affecting the stress strength.

[0004] The present invention adopts the following technical solution:

[0005] A general-purpose aircraft pivot rapid lifting and stabilizing device, the stabilizing device comprising: 1. felt, 2. self-tapping screw, 3. wooden support plate, 4. lead screw support column, 5. handwheel grip ring, 6. handwheel positioning nut, 7. handwheel support rod, 8. one-way thrust bearing, 9. bearing base outer cylinder, 10. wing nut, and 11. wooden support.

[0006] The lower outer periphery of the handwheel positioning nut 6 has a groove, and the handwheel grip ring 5 is wrapped around the handwheel positioning nut 6. The two are welded together with a handwheel support rod 7 to form an integral assembly.

[0007] The bearing base outer cylinder 9 is a hollow cylinder with a recessed groove at its top. A semi-circular arc boss is formed on the inner wall of the top of the groove. A threaded through hole is formed on the side wall of the bearing base outer cylinder 9. The lower end face of the handwheel positioning nut 6 contacts the one-way thrust bearing 8 and is installed in the groove at the top of the bearing base outer cylinder 9. The groove at the bottom of the handwheel positioning nut 6 cooperates with the semi-circular arc boss of the bearing base outer cylinder 9 to form a limit.

[0008] The screw support column 4 has an elongated groove on its side, into which a combination of a handwheel positioning nut 6, a one-way thrust bearing 8, and a bearing base outer cylinder 9 is assembled to achieve rapid lifting and lowering. The wing nut 10 is inserted into the threaded through hole on the side wall of the bearing base outer cylinder 9 and extends into the elongated groove on the side of the screw support column 4. After the screw support column 4 is lifted and lowered into place, the wing nut 10 is tightened to lock the screw support column 4 in place. The wing nut 10 is loosened but does not leave the edge of the groove to ensure directional lifting and lowering.

[0009] The wooden support 11 is wrapped with a wooden support reinforcement plate 3, which is fixed to the outside of the wooden support 11 by self-tapping screws 2. Felt 1 is pasted on the wooden support 11 to form a three-layer structure of felt, wooden support and steel plate, which is fixed to the top of the screw support column 4 to support the aircraft parts without affecting the support strength. It can ensure that the surface coating of the aircraft parts is protected while providing strong support during use.

[0010] The beneficial effects of this utility model are as follows: This utility model has a simple and practical structure, can be quickly moved to the repair site, improves the efficiency of thermal protection repairs, and reduces damage to the product and surface coating caused by impacts (the surface plate is easily deformed by impacts). This utility model is simple and quick to operate, lightweight and stable, and flexible in lifting, meeting the needs of various scenarios such as parking, repair, and rapid vertical adjustment. Furthermore, it can be welded to other devices for use, such as ladders, supports, and tooling in aerospace, shipbuilding, and automotive industries. Attached Figure Description

[0011] Figure 1 This is a front view of the overall structure of this utility model.

[0012] Figure 2 This is a top view of the overall structure of this utility model.

[0013] Figure 3 This is a schematic diagram of the wooden support reinforcement plate.

[0014] Figure 4 This is a schematic diagram of the lead screw support column, where (a) is the front view and (b) is the top view.

[0015] Figure 5 This is a schematic diagram of the handwheel positioning nut.

[0016] Figure 6 The diagram shows the outer cylinder of the bearing base, where (a) is the front sectional view and (b) is the side view.

[0017] Among them, 1 is felt, 2 is self-tapping screw, 3 is wooden support reinforcement plate, 4 is screw rod support column, 5 is handwheel grip ring, 6 is handwheel positioning screw nut, 7 is handwheel support rod, 8 is one-way thrust bearing, 9 is bearing base outer cylinder, 10 is wing nut, and 11 is wooden support. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of this utility model clearer, the specific embodiments of this utility model will be described in detail below.

[0019] A universal aircraft pivot rapid lift and stabilization device, comprising: 1. felt, 2. self-tapping screws, 3. wooden support plate, 4. lead screw support column, 5. handwheel grip ring, 6. handwheel positioning nut, 7. handwheel support rod, 8. one-way thrust bearing, 9. bearing base outer cylinder, 10. wing nut, and 11. wooden support. Figure 1 and Figure 2 .

[0020] The lower outer circumference of the handwheel positioning nut 6 has a groove (e.g.) Figure 5 The handwheel grip ring 5 surrounds the handwheel positioning nut 6, and a handwheel support rod 7 is welded between them to form an integral assembly. After welding and fixing, the surface is treated with anti-rust galvanizing. Figure 2 .

[0021] like Figure 6 The bearing base outer cylinder 9 is a hollow cylinder with a recessed groove at its top. A semi-circular arc boss is formed on the inner wall of the top of the groove. A threaded through hole is formed on the side wall of the bearing base outer cylinder 9. The lower end face of the handwheel positioning nut 6 contacts the planar seat type one-way thrust bearing 8 and is installed in the top groove of the bearing base outer cylinder 9. The groove at the lower part of the handwheel positioning nut 6 cooperates with the semi-circular arc boss of the bearing base outer cylinder 9 to form a limit.

[0022] like Figure 4 The screw support column 4 has a trapezoidal thread on its exterior and an elongated groove on its side. It is assembled with a combination of a handwheel positioning nut 6, a one-way thrust bearing 8, and a bearing base outer cylinder 9 to achieve rapid lifting and lowering. The wing nut 10 passes through the threaded through hole on the side wall of the bearing base outer cylinder 9 and extends into the elongated groove on the side of the screw support column 4. After the screw support column 4 is lifted and lowered into place, the wing nut 10 is tightened to lock the screw support column 4 in place. The wing nut 10 is loosened but does not leave the edge of the groove to ensure directional lifting and lowering. The length of the screw support column 4 can be selected according to actual needs.

[0023] The wooden support 11 is generally square block structure, with U-shaped wooden support reinforcing plate 3 (such as...). Figure 3 The outer layer is wrapped around the wooden support 11 and fixed with self-tapping screws 2. Felt 1 is pasted on the wooden support 11 to form a three-layer structure of felt, wooden support and steel plate. It is fixed to the top of the screw support column 4 to support the aircraft parts without affecting the support strength. It can ensure that the surface coating of the aircraft parts is protected while providing strong support during use.

[0024] In summary, the above are merely preferred embodiments of this utility model and are not intended to limit the scope of protection of this utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the scope of protection of this utility model.

Claims

1. A universal aircraft pivot rapid lift and stabilization device, characterized in that, The stabilizing device includes a lead screw support column (4), a handwheel positioning nut (6), a one-way thrust bearing (8), and a bearing base outer cylinder (9); The lower outer circumference of the handwheel positioning nut (6) is grooved, and the bearing base outer cylinder (9) is a hollow cylinder with a recessed groove at its top and a semi-circular arc boss on the inner wall of the groove top. The lower end face of the handwheel positioning nut (6) contacts the one-way thrust bearing (8) and is installed in the groove at the top of the bearing base outer cylinder (9). The groove at the lower part of the handwheel positioning nut (6) and the semi-circular arc boss of the bearing base outer cylinder (9) cooperate to form a limit. The screw support column (4) is assembled into the combination of the handwheel positioning nut (6), the one-way thrust bearing (8) and the bearing base outer cylinder (9) to achieve rapid lifting and lowering.

2. The aircraft universal pivot rapid lift and stabilization device according to claim 1, characterized in that, The bearing base outer cylinder (9) has a threaded through hole on its side wall, and the screw support column (4) has a long strip groove on its side. The wing nut (10) is inserted into the threaded through hole and extends into the long strip groove. Tightening the wing nut (10) can achieve the positioning and locking of the screw support column (4). Loosening the wing nut (10) will not leave the edge of the groove to ensure directional lifting.

3. The aircraft universal pivot rapid lift and stabilization device according to claim 1, characterized in that, The handwheel positioning nut (6) is surrounded by the handwheel grip ring (5), and a handwheel support rod (7) is fixed between the two.

4. The aircraft universal pivot rapid lift and stabilization device according to claim 1, characterized in that, The top of the lead screw support column (4) is fixed with a wooden bracket (11) for supporting aircraft parts.

5. The aircraft universal pivot rapid lift and stabilization device according to claim 4, characterized in that, The wooden support (11) is wrapped with a wooden support reinforcement plate (3) to increase the support strength.

6. A universal aircraft pivot rapid lift and stabilization device according to claim 4 or 5, characterized in that, The wooden support (11) is covered with felt (1) to protect the surface coating of the aircraft parts.

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