Airplane wheel fixing and mounting assembly

Abstract

The utility model discloses an aircraft wheel fixing and mounting assembly, particularly relates to the technical field of aircraft wheels, and provides the following scheme aiming at the problem that the existing aircraft wheel needs to be fixed when being folded and unfolded and is prevented from reversing in the moving process: the aircraft wheel fixing and mounting assembly comprises a mounting cover, a supporting rod and a rotating rod, the supporting rod is arranged at the bottom of the mounting cover, and the rotating rod is arranged at the bottom of the mounting cover; a rotating rod is arranged in the top end of the supporting rod in a penetrating mode, a sliding plate is arranged on one side of the top of the mounting cover, a fixing rod is mounted in the mounting cover and close to the top of the rotating rod, and clamping assemblies are mounted at the two ends in the fixing rod and close to the mounting cover. Two bevel gears are mounted at the positions, close to the clamping assemblies, of the outer walls of the two ends of the rotating rod for rotating, and the inclination directions of teeth of the outer walls of the two bevel gears at one end of the rotating rod are opposite. The device has the advantages of being capable of limiting accidental reverse rotation of the airplane wheel during adjustment and being fixed after adjustment is completed.

Description

Technical Field

[0001] The utility model relates to the technical field of aircraft wheels, in particular to an aircraft wheel fixing and installation component. Background Art

[0002] The landing gear is an accessory device on the lower part of the aircraft that is used to support the aircraft and move on the ground during takeoff, landing or ground (water) taxiing. The landing gear is the only component that supports the entire aircraft, so it is an indispensable part of the aircraft. Without it, the aircraft cannot move on the ground. After the aircraft takes off, the landing gear can be retracted depending on the flight performance.

[0003] However, in actual use, the wheels of the aircraft need to be fixed. When folded, they need to be kept in a fixed position to prevent accidental deployment. After deployment, they also need to be fixed to prevent accidental contraction. Therefore, a structural component that can be installed and fixed is needed. At the same time, the device also needs to be controlled during the deployment or storage process to avoid accidental reverse movement. Utility Model Content

[0004] The utility model aims to provide an aircraft wheel fixing and installation assembly, which solves the problem that the existing aircraft wheels need to be fixed when they are stored and unfolded, and avoids the reverse movement during the movement.

[0005] In order to achieve the above-mentioned purpose, the utility model provides the following technical solutions: an aircraft wheel fixing and mounting assembly, comprising a mounting cover, a support rod and a rotating rod, wherein the bottom of the mounting cover is provided with a support rod, the top of the support rod is provided with a rotating rod, a sliding plate is provided on one side of the top of the mounting cover, a fixing rod is provided inside the mounting cover near the top of the rotating rod, and clamping assemblies are provided at both ends of the fixing rod near the inside of the mounting cover;

[0006] Two helical gears are installed on the outer walls of both ends of the rotating rod near the clamping assembly, and the outer wall teeth of the two helical gears at one end of the rotating rod are inclined in opposite directions;

[0007] The clamping assembly for clamping includes a stopper rod and a fixing block, and the top of one end of the rotating rod is provided with a stopper rod on both sides, and the two stopper rods are respectively clamped with the outer wall teeth of the two helical gears at one end of the rotating rod;

[0008] The bottom of the sliding plate used for sliding is slidably connected with the sliding plate, the bottom of the sliding plate is rotatably connected with a transmission rod, and the transmission rod is rotatably connected to one side of the outer wall of the support rod.

[0009] Preferably, the top of the support rod is fixedly connected to the outer wall of the rotating rod via a fixing ring, and a plurality of wheel modules are installed at the bottom of the support rod.

[0010] Preferably, both ends of the fixed rod are rotatably connected to both sides of the mounting cover, the top of the stop rod is rotatably connected to the fixed rod, and a torsion spring is arranged on one side of the top of the stop rod. The two ends of the torsion spring are respectively fixed to the outer wall of the fixed rod and the side wall of the stop rod.

[0011] Preferably, a rotating rod is arranged at the bottom of the fixed rod, and one end of the rotating rod penetrates through the inside of the mounting cover and is connected to an external motor. Fixed blocks are installed at corresponding positions on the outer wall of the rotating rod and the stop rod, and a stop block is inclined downward toward the bottom on one side of each fixed block close to the stop rod.

[0012] Preferably, a self-locking hydraulic rod is arranged at one end of the sliding block away from the mounting cover. The self-locking hydraulic rod is fixed to the bottom of the sliding plate, and the inner extending end of the self-locking hydraulic rod is fixed to the sliding block.

[0013] Preferably, both ends of the mounting cover are inclined downward to form a U-shaped structure. The outer wall of the mounting cover is fixedly connected to the abdominal structure of the aircraft, and both ends of the rotating rod are rotatably connected to the mounting cover through bearings.

[0014] In the above technical solution, the technical effects and advantages provided by the present utility model are as follows:

[0015] 1. When the helical gear rotates in the reverse direction, it will not be blocked. At this time, starting the self-locking hydraulic rod can push the sliding block to move along the sliding plate. The sliding block drives the support rod to rotate through the transmission rod. Then, the support rod rotates around the center of the rotating rod through the fixing ring. The fixing ring drives the helical gears at both ends thereof to rotate through the rotating rod. At the same time, since only one side of the stop rod is lifted, there is still a stop rod on the other side that is engaged with the helical gear. Therefore, a ratchet structure can be formed between the stop rod and the helical gear to maintain its one-way rotation and avoid reverse movement during rotation.

[0016] 2. Rotating the rotating rod in the reverse direction will drive the fixed block to rotate downward, causing the lifted stop rod to drop. Thus, the tops of both helical gears with reverse-inclined teeth are engaged with the stop rod to form a ratchet structure, thereby achieving two-way restriction, preventing the helical gear from rotating, and also fixing the rotating rod. As a result, the support rod is fixed. Moreover, the self-locking hydraulic rod can be locked when the movement stops, and the sliding block can also be fixed. Further, the position of the support rod is fixed through the transmission rod, further restricting the wheel module to make it fixed. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required in the embodiments. Obviously, the drawings described below are only some embodiments recorded in the present utility model. For those of ordinary skill in the art, other drawings can also be obtained based on these drawings.

[0018] Figure 1 It is a schematic diagram of the utility model;

[0019] Figure 2 This is a schematic diagram of the structure of the connection between the bottom of the sliding plate and the support rod of the utility model;

[0020] Figure 3 It is a schematic diagram of the top structure of both ends of the rotating rod of the utility model;

[0021] Figure 4 It is a side view of the utility model;

[0022] Figure 5 It is a structural schematic diagram of the connection between the helical gear and the clamping assembly of the utility model.

[0023] Description of reference numerals:

[0024] 1. Mounting cover; 2. Support rod; 201. Fixing ring; 202. Wheel module; 3. Rotating rod; 301. Bevel gear; 4. Sliding plate; 401. Sliding block; 402. Self-locking hydraulic rod; 403. Transmission rod; 5. Fixing rod; 501. Rotating rod; 6. Snap-on assembly; 601. Stop rod; 602. Fixing block. DETAILED DESCRIPTION

[0025] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0026] The utility model provides Figure 1-5 An aircraft wheel fixing and mounting assembly shown in the figure includes a mounting cover 1, a support rod 2 and a rotating rod 3. The supporting rod 2 is arranged at the bottom of the mounting cover 1, and the rotating rod 3 is penetrated inside the top end of the supporting rod 2. A sliding plate 4 is arranged on one side of the top of the mounting cover 1. A fixing rod 5 is installed inside the mounting cover 1 near the top of the rotating rod 3, and clamping assemblies 6 are installed at both ends of the fixing rod 5 near the inside of the mounting cover 1.

[0027] like Figure 1-5 As shown, two bevel gears 301 are installed on the outer walls of both ends of the rotating rod 3 for rotation near the clamping assembly 6, and the outer wall teeth of the two bevel gears 301 at one end of the rotating rod 3 are inclined in opposite directions; the clamping assembly 6 for clamping includes a blocking rod 601 and a fixed block 602, and blocking rods 601 are arranged on both sides of the top of one end of the rotating rod 3, and the two blocking rods 601 are respectively clamped with the outer wall teeth of the two bevel gears 301 at one end of the rotating rod 3; the sliding plate 4 for sliding is slidably connected to the sliding plate 4 at the bottom, and the bottom of the sliding plate 4 is rotatably connected to the transmission rod 403, and the transmission rod 403 is rotatably connected to one side of the outer wall of the support rod 2.

[0028] like Figure 1 , Figure 2 As shown, the top of the support rod 2 is fixedly connected to the outer wall of the rotating rod 3 through a fixing ring 201, and a plurality of wheel modules 202 are installed at the bottom of the support rod 2.

[0029] like Figure 4 , Figure 5 As shown, both ends of the fixing rod 5 are rotatably connected with the two sides of the mounting cover 1, and the top of the blocking rod 601 is rotatably connected with the fixing rod 5, and a torsion spring is arranged on one side of the top of the blocking rod 601, and both ends of the torsion spring are fixedly connected with the outer wall of the fixing rod 5 and the side wall of the blocking rod 601 respectively; a rotating rod 501 is arranged at the bottom of the fixing rod 5, and one end of the rotating rod 501 passes through the interior of the mounting cover 1 and is connected with the external motor; a fixing block 602 is installed at the corresponding position of the outer wall of the rotating rod 501 and the blocking rod 601, and a blocking block is arranged on the side of the fixing block 602 close to the blocking rod 601 to be inclined to the bottom, so that the rotating rod 501 can be rotated in the opposite direction, thereby driving the fixing block 602 to rotate toward the bottom, so that the squeezing of the blocking rod 601 is released, and the lifted blocking rod 601 is put down, so that the tops of the two helical gears 301 with inclined teeth in opposite directions are engaged with the blocking rod 601 to form a ratchet structure, thereby realizing two-way restriction, preventing the helical gear 301 from rotating, and also fixing the rotating rod 3.

[0030] like Figure 1 , Figure 2 As shown, a self-locking hydraulic rod 402 is provided at one end of the sliding block 401 away from the mounting cover 1. The self-locking hydraulic rod 402 is fixed to the bottom of the sliding plate 4, and the inner protruding end of the self-locking hydraulic rod 402 is fixed to the sliding block 401. The self-locking hydraulic rod 402 can be locked when the movement stops, and the sliding block 401 can also be kept fixed. Starting the self-locking hydraulic rod 402 can push the sliding block 401 to move along the sliding plate 4, and the sliding block 401 drives the support rod 2 to rotate through the transmission rod 403, and then the position of the support rod 2 is fixed through the transmission rod 403, further restricting the wheel module 202 to make it fixed.

[0031] like Figure 1 , Figure 4As shown, both ends of the mounting cover 1 incline towards the bottom to form a U-shaped structure. The outer wall of the mounting cover 1 is fixedly connected to the abdominal structure of the aircraft. Both ends of the rotating rod 3 are rotatably connected to the mounting cover 1 through bearings. The support rod 2 rotates around the center of the rotating rod 3 through the fixing ring 201. The fixing ring 201 drives the bevel gears 301 at both ends thereof to rotate through the rotating rod 3. At the same time, since only one side of the blocking rod 601 is lifted, there is still a blocking rod 601 on the other side that is engaged with the bevel gear 301. Therefore, a ratchet structure can be formed between the blocking rod 601 and the bevel gear 301, which can keep the bevel gear 301 rotating in one direction and prevent reverse movement during rotation. Thus, the fixing ring 201 is prevented from rotating in the reverse direction through the rotating rod 3, and the support rod 2 is restricted from rotating in the reverse direction.

[0032] Working principle: When in use, the rotating rod 501 can be conveniently started to rotate, so that the rotating rod 501 can drive the fixing block 602 to rotate. Then, due to the inclination of the fixing block 602 to one side, the blocking rod 601 on one side of the top of the rotating rod 3 is lifted, releasing its engagement with the bevel gear 301. Therefore, when the bevel gear 301 rotates in the reverse direction, it will not be blocked. At this time, when the self-locking hydraulic rod 402 is started, the sliding block 401 can be pushed to move along the sliding plate 4. The sliding block 401 drives the support rod 2 to rotate through the transmission rod 403. Thus, the support rod 2 rotates around the center of the rotating rod 3 through the fixing ring 201. The fixing ring 201 drives the bevel gears 301 at both ends thereof to rotate through the rotating rod 3. At the same time, since only one side of the blocking rod 601 is lifted, there is still a blocking rod 601 on the other side that is engaged with the bevel gear 301. Therefore, a ratchet structure can be formed between the blocking rod 601 and the bevel gear 301, which can keep the bevel gear 301 rotating in one direction and prevent reverse movement during rotation. Thus, the fixing ring 201 is prevented from rotating in the reverse direction through the rotating rod 3, and the support rod 2 is restricted from rotating in the reverse direction.

[0033] When stopping rotation, the rotating rod 501 can be rotated in the reverse direction, which will drive the fixing block 602 to rotate towards the bottom, releasing the extrusion on the blocking rod 601 and lowering the lifted blocking rod 601. Thus, the tops of both bevel gears 301 with inclined and reverse tooth flanks are engaged with the blocking rod 601 to form a ratchet structure, realizing two-way restriction, preventing the bevel gear 301 from rotating, thereby also fixing the rotating rod 3, and then fixing the support rod 2. Moreover, when stopping movement, the self-locking hydraulic rod 402 can be locked, and the sliding block 401 can also be fixed. Thus, the position of the support rod 2 is fixed through the transmission rod 403, further restricting the wheel module 202 to fix it.

[0034] The above only describes some exemplary embodiments of the present invention by way of illustration. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. An aircraft wheel fixing assembly, comprising a mounting cover (1), a support rod (2) and a rotating rod (3), characterized in that: A support rod (2) is provided at the bottom of the installation cover (1). A rotating rod (3) is penetrated through the top end of the support rod (2). A sliding plate (4) is provided on one side of the top of the installation cover (1). A fixing rod (5) is installed near the top of the rotating rod (3) inside the installation cover (1). Clamping components (6) are installed at both ends of the fixing rod (5) near the inner part of the installation cover (1). Two bevel gears (301) are installed on the outer walls of both ends of the rotating rod (3) near the clamping components (6) for rotation, and the tooth inclination directions of the outer wall tooth teeth of the two bevel gears (301) at one end of the rotating rod (3) are opposite. The clamping component (6) for clamping includes a stop rod (601) and a fixing block (602). Stop rods (601) are provided on both sides of the top of one end of the rotating rod (3), and the two stop rods (601) are respectively clamped with the outer wall tooth teeth of the two bevel gears (301) at one end of the rotating rod (3). A sliding plate (4) is slidably connected to the bottom of the sliding plate (4) for sliding. A transmission rod (403) is rotatably connected to the bottom of the sliding plate (4), and the transmission rod (403) is rotatably connected to one side of the outer wall of the support rod (2).

2. The aircraft wheel fixing and mounting assembly according to claim 1, characterized in that: The top of the support rod (2) is fixedly connected to the outer wall of the rotating rod (3) through a fixing ring (201), and a plurality of wheel modules (202) are installed at the bottom of the support rod (2).

3. The aircraft wheel fixing and mounting assembly according to claim 1, characterized in that: Both ends of the fixing rod (5) are rotatably connected to both sides of the installation cover (1). The top of the stop rod (601) is rotatably connected to the fixing rod (5). A torsion spring is provided on one side of the top of the stop rod (601), and both ends of the torsion spring are fixedly connected to the outer wall of the fixing rod (5) and the side wall of the stop rod (601) respectively.

4. The aircraft wheel fixing and mounting assembly according to claim 1, characterized in that: A rotating rod (501) is provided at the bottom of the fixing rod (5), and one end of the rotating rod (501) penetrates through the inside of the installation cover (1) and is connected to an external motor. Fixing blocks (602) are installed at the corresponding positions of the outer wall of the rotating rod (501) and the stop rod (601), and a stop block is inclined downward on one side of each fixing block (602) close to the stop rod (601).

5. The aircraft wheel fixing and mounting assembly according to claim 1, characterized in that: A self-locking hydraulic rod (402) is provided at one end of the sliding block (401) away from the installation cover (1). The self-locking hydraulic rod (402) is fixedly connected to the bottom of the sliding plate (4), and the inner extending end of the self-locking hydraulic rod (402) is fixedly connected to the sliding block (401).

6. The aircraft wheel fixing and mounting assembly according to claim 1, characterized in that: Both ends of the installation cover (1) are inclined downward in a U shape, the outer wall of the installation cover (1) is fixedly connected to the aircraft belly structure, and both ends of the rotating rod (3) are rotatably connected to the installation cover (1) through bearings.

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