Device for assisting assembly of aircraft landing gear

Abstract

The utility model relates to the technical field of aerospace manufacturing, and discloses a device for assisting the assembly of an aircraft landing gear, which comprises a rotating mechanism, the top of the rotating mechanism is fixedly connected with a sliding mechanism, the bottom of the rotating mechanism is fixedly connected with a lifting mechanism, and the rotating mechanism comprises a mounting frame. A lead screw sleeve is fixedly connected to the interior of the mounting frame, a left-handed lead screw is in threaded connection with the interior of the lead screw sleeve, a nut is fixedly connected to the top of the left-handed lead screw, a hand wheel is fixedly connected to the surface of the nut, and a right-handed lead screw is in threaded connection with the interior of the nut. The bent handle pin is clamped in the supporting arm and the positioning shaft, the position of the supporting arm can be fixed, in the assembly process of the undercarriage, the supporting arm bears components, the bent handle pin can ensure that the supporting arm does not move or shake when bearing weight and external force, a stable supporting platform is provided for the components, and the design of the supporting arm is convenient for an operator to quickly assemble and disassemble the supporting arm and the positioning shaft. The assembly efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of aerospace manufacturing, in particular to a device for assisting the assembly of aircraft landing gear. Background Art

[0002] Aircraft landing gear is a relatively complex component in the assembly process. Its structure resembles a T-shape, being top-heavy, with a low joint location, an upper center of gravity, and a low clamping position. Landing gear installation typically exhibits the following characteristics: 1. The installation position is high; 2. The installation location is relatively narrow, requiring tilting to access the installation position; 3. The landing gear must be installed upward from the belly of the aircraft, resulting in low ground clearance. The high installation position requires auxiliary installation equipment with a low minimum height and a long lifting stroke; 4. The landing gear typically has a large cylindrical shaft, making it difficult to clamp; 5. The landing gear typically weighs over 150 kg, making manual lifting difficult in confined spaces. 6. The low joint location and high center of gravity make it prone to tipping. Due to these characteristics, the installation of aircraft landing gear has traditionally relied on manual lifting and support, requiring five people to simultaneously perform the assembly. This is time-consuming and labor-intensive, with the risk of damage to the product, and it also lacks stability. Utility Model Content

[0003] In order to solve the above technical problems, the utility model provides a device for assisting the assembly of aircraft landing gear.

[0004] The utility model is implemented by the following technical solution: a device for assisting the assembly of an aircraft landing gear, comprising a rotating mechanism, the top of the rotating mechanism is fixedly connected to a sliding mechanism, and the bottom of the rotating mechanism is fixedly connected to a lifting mechanism;

[0005] The rotating mechanism includes a mounting frame, the interior of the mounting frame is fixedly connected to a screw sleeve, the internal thread of the screw sleeve is connected to a left-hand screw, the top of the left-hand screw is fixedly connected to a nut, the surface of the nut is fixedly connected to a handwheel, the internal thread of the nut is connected to a right-hand screw, the top of the right-hand screw is clamped and connected to a joint, the inside of the joint is clamped and connected to a stop pin, a counterweight block is provided on the top of the mounting frame, and joints are provided at the front and rear ends of the joint.

[0006] As a further improvement of the above solution, there are two screw sleeves, which are symmetrically distributed around the center of the mounting frame. Through grooves are provided on the left and right sides of the joint, and the through grooves are connected to the joint.

[0007] As a further improvement of the above scheme, the sliding mechanism includes a positioning shaft, the surface of the positioning shaft is slidably connected to a nylon sleeve, the surface of the nylon sleeve is plug-connected to a support arm, a support plate is provided inside the support arm, a silicone pad is fixedly connected to the right side of the support plate, a bent handle pin is snap-connected inside the support arm, and a warning tape is provided on the right side surface of the bent handle pin.

[0008] As a further improvement of the above solution, the positioning shaft is located inside the joint, the surface of the positioning shaft is slidably connected to the inner wall of the joint, and the positioning shaft is snap-connected to the stop pin.

[0009] As a further improvement of the above solution, the support arm is slidably connected to the positioning shaft through a nylon sleeve, the interior of the positioning shaft is snap-connected to the surface of the bent handle pin, and a through groove is provided on the right side surface of the bent handle pin.

[0010] As a further improvement of the above solution, the lifting mechanism includes supporting legs, and the bottom of the mounting frame is fixedly connected to a universal caster.

[0011] As a further improvement of the above solution, the support leg is located at one end of the mounting frame, one end of the support leg is fixedly connected to one end of the mounting frame, the number of the support legs is set to four, the number of the universal casters is set to correspond to the support legs, and the four universal casters are symmetrically and evenly distributed on the surface with the bottom center of the mounting frame.

[0012] Compared with the prior art, the beneficial effects of the present invention are:

[0013] The utility model provides a bent handle pin, which is clamped in the inside of the support arm and the positioning shaft, so as to fix the position of the support arm. During the assembly of the landing gear, the support arm supports the component, and the bent handle pin can ensure that it does not move or shake when bearing weight and external force, thereby providing a stable support platform for the component. In addition, its design facilitates the operator to quickly install and disassemble, thereby improving assembly efficiency.

[0014] This utility model incorporates a counterweight. The counterweight, mounted on top of the mounting frame, effectively balances the center of gravity of the entire assembly during operation. Because aircraft landing gear components are typically heavy, the center of gravity may shift during assembly due to component movement or adjustments to the assembly itself. The presence of the counterweight prevents the assembly from tipping over due to an unstable center of gravity, ensuring safe and stable assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 This is a schematic structural diagram of the connector 1 of the present invention;

[0017] Figure 3 This is a schematic diagram of the support arm structure of the utility model;

[0018] Figure 4 This is a schematic diagram of the lifting mechanism structure of the utility model.

[0019] Description of main symbols:

[0020] 1. Rotating mechanism; 101. Mounting frame; 102. Screw sleeve; 103. Left-hand screw; 104. Nut; 105. Handwheel; 106. Right-hand screw; 107. Connector; 108. Stop pin; 109. Counterweight; 110. Connector 1; 2. Sliding mechanism; 201. Positioning shaft; 202. Nylon sleeve; 203. Support arm; 204. Support plate; 205. Silicone pad; 206. Bend handle pin; 207. Warning tape; 3. Lifting mechanism; 301. Support leg; 302. Universal caster. DETAILED DESCRIPTION

[0021] Below, the present invention is further described in conjunction with the accompanying drawings and specific implementation methods. It should be noted that, under the premise of no conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments. Example

[0022] Please combine Figure 1-4 , a device for assisting the assembly of an aircraft landing gear in this embodiment includes a rotating mechanism 1, a sliding mechanism 2 is fixedly connected to the top of the rotating mechanism 1, and a lifting mechanism 3 is fixedly connected to the bottom of the rotating mechanism 1;

[0023] The rotating mechanism 1 includes a mounting frame 101, the interior of the mounting frame 101 is fixedly connected to a screw sleeve 102, the internal thread of the screw sleeve 102 is connected to a left-handed screw rod 103, the top of the left-handed screw rod 103 is fixedly connected to a nut 104, the surface of the nut 104 is fixedly connected to a handwheel 105, the internal thread of the nut 104 is connected to a right-handed screw rod 106, the top of the right-handed screw rod 106 is snap-connected to a joint 107, the inside of the joint 107 is snap-connected to a stop pin 108, a counterweight block 109 is provided on the top of the mounting frame 101, and joints 1110 are provided at the front and rear ends of the joint 107.

[0024] There are two screw sleeves 102 , which are symmetrically distributed around the center of the mounting frame 101 . Through slots are provided on the left and right sides of the joint 107 , which communicate with the joint 1110 .

[0025] The sliding mechanism 2 includes a positioning shaft 201, the surface of the positioning shaft 201 is slidingly connected to a nylon sleeve 202, the surface of the nylon sleeve 202 is plugged into a support arm 203, a support plate 204 is provided inside the support arm 203, a silicone pad 205 is fixedly connected to the right side of the support plate 204, a bent handle pin 206 is snap-connected inside the support arm 203, and a warning tape 207 is provided on the right side surface of the bent handle pin 206.

[0026] The positioning shaft 201 is located inside the joint 107 , the surface of the positioning shaft 201 is slidably connected to the inner wall of the joint 1110 , and the positioning shaft 201 is snap-connected to the stop pin 108 .

[0027] The support arm 203 is slidably connected to the positioning shaft 201 through the nylon sleeve 202. The interior of the positioning shaft 201 is snap-connected to the surface of the bent handle pin 206. A through groove is provided on the right side surface of the bent handle pin 206.

[0028] The lifting mechanism 3 includes a support leg 301 , and a universal caster 302 is fixedly connected to the bottom of the mounting frame 101 .

[0029] The support leg 301 is located at one end of the mounting frame 101, and one end of the support leg 301 is fixedly connected to one end of the mounting frame 101. There are four support legs 301, and the number of universal casters 302 is set to correspond to the support legs 301. The four universal casters 302 are symmetrically and evenly distributed on the surface with the bottom center of the mounting frame 101.

[0030] The device for assisting in the assembly of aircraft landing gear in an embodiment of the present application operates as follows: First, brake the wheels, then shake the support leg 301 to raise it and fully support the ground. Next, adjust the counterweight 109 according to the weight of the product, as this will prevent the device from tipping over during assembly. Next, insert the nylon sleeve 202 into the interior of the support arm 203. Then, insert the positioning shaft 201 from the front into the joint 107 on one side, then through the nylon sleeve 202, and finally into the joint 107 on the other side. Next, insert the stop pin into the joint 107 and the positioning shaft 201, and the bent handle pin 206 into the interior of the support arm 203 and the positioning shaft 201. A warning tape 207 is attached to the bent handle pin 206 and the stop pin 108. The warning tape 207 should state "Do not remove during assembly." At this point, release the wheel brakes, raise the support leg 301, and push the installation vehicle to move the landing gear to the installation area. Use handwheel 105 to raise the product to the working height. Turning handwheel 105 raises the left-hand screw 103. All handwheels 105 do not need to be adjusted simultaneously, allowing the product to swing left and right, facilitating its placement in the installation position. Once the product is successfully raised to the installation height, secure the mounting cart with support legs 301. After installation, remove the bent handle pin 206 and locking pin 108, followed by the positioning shaft 201, nylon sleeve 202, and support arm 203. This completes the assembly process.

[0031] The above-mentioned embodiments are only preferred embodiments of the present invention and cannot be used to limit the scope of protection of the present invention. Any non-substantial changes and replacements made by technicians in this field on the basis of the present invention fall within the scope of protection required by the present invention.

Claims

1. A device for assisting the assembly of aircraft landing gear, characterized in that: It comprises a rotating mechanism (1), the top of the rotating mechanism (1) is fixedly connected to a sliding mechanism (2), and the bottom of the rotating mechanism (1) is fixedly connected to a lifting mechanism (3); The rotating mechanism (1) comprises a mounting frame (101), the interior of the mounting frame (101) is fixedly connected to a screw sleeve (102), the interior of the screw sleeve (102) is threadedly connected to a left-hand screw (103), the top of the left-hand screw (103) is fixedly connected to a nut (104), the surface of the nut (104) is fixedly connected to a handwheel (105), the interior of the nut (104) is threadedly connected to a right-hand screw (106), the top of the right-hand screw (106) is snap-connected to a joint (107), the interior of the joint (107) is snap-connected to a stop pin (108), a counterweight (109) is provided on the top of the mounting frame (101), and joints 1 (110) are provided at the front and rear ends of the joint (107).

2. The device for assisting the assembly of an aircraft landing gear according to claim 1, wherein: There are two screw sleeves (102), which are symmetrically distributed around the center of the mounting frame (101). The left and right sides of the joint (107) are provided with through slots, which are communicated with the joint 1 (110).

3. The device for assisting the assembly of an aircraft landing gear according to claim 1, wherein: The sliding mechanism (2) comprises a positioning shaft (201), a nylon sleeve (202) being slidably connected to the surface of the positioning shaft (201), a support arm (203) being plug-connected to the surface of the nylon sleeve (202), a support plate (204) being provided inside the support arm (203), a silicone pad (205) being fixedly connected to the right side of the support plate (204), a bent handle pin (206) being snap-connected to the inside of the support arm (203), and a warning strip (207) being provided on the right side surface of the bent handle pin (206).

4. The device for assisting the assembly of an aircraft landing gear according to claim 3, wherein: The positioning shaft (201) is located inside the joint (107), the surface of the positioning shaft (201) is slidably connected to the inner wall of the joint 1 (110), and the positioning shaft (201) is snap-connected to the stop pin (108).

5. The device for assisting the assembly of an aircraft landing gear according to claim 3, wherein: The support arm (203) is slidably connected to the positioning shaft (201) via a nylon sleeve (202), and the interior of the positioning shaft (201) is snap-connected to the surface of a bent handle pin (206), and a through groove is provided on the right side surface of the bent handle pin (206).

6. The device for assisting aircraft landing gear assembly according to claim 1, wherein: The lifting mechanism (3) comprises a support leg (301), and a universal caster (302) is fixedly connected to the bottom of the mounting frame (101).

7. The device for assisting the assembly of an aircraft landing gear according to claim 6, characterized in that: The support leg (301) is located at one end of the mounting frame (101), and one end of the support leg (301) is fixedly connected to one end of the mounting frame (101). The number of the support legs (301) is four, and the number of the universal casters (302) is corresponding to the number of the support legs (301). The four universal casters (302) are symmetrically and evenly distributed on the surface with the bottom center of the mounting frame (101).

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