An auxiliary measuring device for aircraft maintenance

Abstract

The utility model provides a kind of supplementary measuring equipment for aircraft maintenance, it is related to maintenance auxiliary equipment field, the supplementary measuring equipment for aircraft maintenance, including turntable, the inner chamber of the turntable is rotatably connected with first bidirectional screw rod, the outside of the turntable is rotatably connected with driving rod, one end of the driving rod is through the turntable and extends to the inner chamber of the turntable, and one end of the driving rod is fixedly connected with the first bidirectional screw rod, the outside of the driving rod is equipped with embedding slot, and the embedding slot is sequentially arranged, the outside of the first bidirectional screw rod is screwed with two sliding blocks, the top of the sliding block is fixedly connected with mounting rod, the outside of the mounting rod is screwed with first limit ring, the supplementary measuring equipment for aircraft maintenance can realize the simultaneous fixation to the inside and outside diameter of aircraft parts, so that the part is kept stable and centered state in the measuring process. It can ensure that the measurement reference is unified, and reduce the measurement error caused by part deviation.

Description

Technical Field

[0001] This utility model relates to an auxiliary measuring device for aircraft maintenance, specifically an auxiliary measuring device for aircraft maintenance, and belongs to the technical field of maintenance auxiliary equipment. Background Technology

[0002] The wheel hub is the part of the wheel where the axle is mounted, commonly known as the wheel rim or steel rim. When an aircraft lands, the wheel hub bears a significant weight, making it prone to deformation and other problems. This reduces the wheel hub's load-bearing capacity. If it is not inspected and maintained for a long time, it may cause wheel hub damage during aircraft landing, leading to safety hazards.

[0003] The prior art patent application number is 202021035198.4, and the patent name is: "An equipment for aircraft wheel hub repair and inspection". It includes a base, a turntable is rotatably arranged at the center of the top surface of the base, a first lead screw is rotatably arranged in a horizontally opened slide groove at the center of the top surface of the turntable, a main rod is arranged above the center of the first lead screw and welded to the top surface of the turntable, and sliders are threaded to both ends of the first lead screw. Limiting mechanisms are welded to the top surfaces of the two sets of sliders, and an installation block is welded and fixed to the top surface of the base on one side of the turntable.

[0004] However, it is fixed by a vertically movable limiting bolt on the adjustment mechanism. During operation, the bolt needs to be moved to press against a specific part of the wheel hub to limit its displacement and achieve initial positioning. This limiting method of positioning can only locally constrain the wheel hub. It is prone to displacement when subjected to external force collision or vibration, which affects the accuracy. Moreover, the fit of the wheel hub is affected by a variety of factors. If the fit is not tight, it will reduce stability and may also wear the wheel hub, affecting the safety and life of use. Therefore, a new technical solution needs to be designed to solve this problem. Summary of the Invention

[0005] The purpose of this invention is to provide an auxiliary measuring device for aircraft maintenance in order to solve the above-mentioned problems. In this invention, the existing technology requires moving bolts to hold a specific part of the wheel hub to limit its displacement. This limiting method can only locally constrain the wheel hub. It is prone to displacement under external force collision or vibration, which affects the accuracy. Insufficient fit will reduce stability and may also wear the wheel hub, affecting the safety and lifespan of use.

[0006] This utility model is achieved through the following technical solution: an auxiliary measuring device for aircraft maintenance.

[0007] The device includes a turntable, with a first bidirectional screw rotatably connected to its inner cavity. A drive rod is rotatably connected to the outer side of the turntable, with one end of the drive rod penetrating the turntable and extending into its inner cavity. The drive rod is fixedly connected to the first bidirectional screw. An embedding groove is formed on the outer side of the drive rod, and these grooves are arranged sequentially. Two sliders are screwed onto the outer side of the first bidirectional screw. A mounting rod is fixedly connected to the top of each slider, and a first limiting ring is screwed onto the outer side of the mounting rod. By driving the first bidirectional screw to rotate via the drive rod, the two sliders can move synchronously in opposite directions, allowing for flexible adjustment of the mounting rod spacing. Combined with the first limiting ring, it can quickly fix components of different specifications. The embedding groove design facilitates subsequent positioning and coordination with other structures, improving overall connection stability.

[0008] Preferably, a main rod is fixedly connected to the top of the turntable, and a transmission chamber is opened inside the main rod. The main rod provides a supporting frame for the overall structure, and the transmission chamber provides an independent installation space for the internal transmission components, avoiding interference from external impurities, protecting the transmission structure, and extending its service life.

[0009] Preferably, the inner wall of the transmission chamber is rotatably connected to four gear driven screws. One end of each gear driven screw passes through the transmission chamber and extends to the outside of the main rod. The four gear driven screws can transmit power synchronously from different directions, realizing multi-directional adjustment function, improving the adaptability of the equipment to workpieces of different shapes, and the through-through design ensures that power is effectively transmitted to external actuators.

[0010] Preferably, a threaded sleeve is screwed onto the outer side of the driven screw of the gear, and an abutment plate is fixedly connected between one end of the threaded sleeve on the upper and lower sides. An abutment gasket is adhered to one side of the abutment plate. The threaded sleeve converts the rotational motion of the driven screw of the gear into linear motion, which drives the abutment plate to accurately approach or move away from the workpiece. The abutment gasket can buffer the contact pressure, avoid scratches on the surface of the workpiece, and increase friction to improve the positioning firmness.

[0011] Preferably, eight sealing sleeves are rotatably connected to the outer side of the main rod, and the sealing sleeves are evenly distributed. The sealing sleeves are located outside the driven screw of the gear, and one end of the sealing sleeve extends into the interior of the threaded sleeve. The sealing sleeves form a sealing protection for the connection between the driven screw of the gear and the threaded sleeve, preventing dust and liquid from entering and affecting the transmission accuracy, while reducing component wear. The evenly distributed design ensures consistent sealing performance in all directions.

[0012] Preferably, a rotating rod is rotatably connected to the top of the main rod, and the bottom end of the rotating rod passes through the main rod and extends to the inner cavity of the transmission chamber below. Two drive gears are fixedly connected to the outer side of the rotating rod. The drive gears mesh with the driven screws. The rotating rod drives multiple driven screws to rotate synchronously through the drive gears, realizing the linkage of multiple components controlled by a single power source, simplifying the operation process, ensuring the consistency of movement of each driven screw, and improving the adjustment accuracy.

[0013] Preferably, a fixed frame is fixedly connected to the outer side of the turntable, and a second bidirectional screw is rotatably connected to the inner side of the fixed frame. One end of the second bidirectional screw passes through the fixed frame and extends to the outer side of the fixed frame. The fixed frame provides stable support for the second bidirectional screw. Rotating the second bidirectional screw can drive the relevant components to move synchronously in opposite directions, realizing quick clamping or loosening actions. The through-hole design facilitates external operation and improves ease of use.

[0014] Preferably, a V-shaped retainer is screwed to the outer side of the second bidirectional screw, and a mating groove is provided on one side of the V-shaped retainer. A V-shaped insert plate is screwed to the outer side of the second bidirectional screw. An embedded gasket is adhered to one side of both the V-shaped retainer and the V-shaped insert plate. The embedded gasket contacts the embedded groove. The V-shaped retainer and insert plate can adapt to the outer contour of circular or polygonal workpieces, improving clamping stability. The embedded gasket and embedded groove can lock the position of the drive rod to prevent accidental rotation. The mating groove design facilitates quick positioning and assembly, and enhances the overall structural locking reliability.

[0015] This utility model provides an auxiliary measuring device for aircraft maintenance, which has the following beneficial effects: 1. This auxiliary measuring equipment for aircraft maintenance, through a synchronous fixing mechanism for inner and outer diameters, can simultaneously fix the inner and outer diameters of aircraft components, ensuring that the components remain stable and centered during measurement. This ensures a consistent measurement benchmark, reduces measurement errors caused by component misalignment, adapts to components of different sizes and specifications, enhances the equipment's versatility, avoids localized deformation that may occur with a single fixing method, protects component precision, and guarantees the accuracy and reliability of measurement data.

[0016] 2. This auxiliary measuring equipment for aircraft maintenance, through a locking anti-rotation mechanism, can effectively limit the rotation of parts and key components of the equipment itself during the measurement process. It can prevent parts from rotating due to external interference during measurement, ensure stable measurement position, and improve measurement accuracy; avoid positioning offset caused by accidental rotation of equipment transmission components, and ensure operational safety; after locking, it can maintain the current measurement state, which is convenient for multi-dimensional and multi-data-point measurement operations. Attached Figure Description

[0017] Figure 1This is a front-view three-dimensional structural diagram of the present invention; Figure 2 This is a schematic cross-sectional view of the main rod structure of this utility model; Figure 3 This is a schematic cross-sectional view of the threaded sleeve of this utility model; Figure 4 This is a schematic diagram of the locking and anti-rotation mechanism of this utility model; [Explanation of Key Component Symbols] 1. Turntable; 101. First bidirectional screw; 2. Drive rod; 201. Embedded slot; 3. Slider; 301. Mounting rod; 302. First limit ring; 4. Main rod; 401. Transmission chamber; 402. Gear driven screw; 403. Threaded sleeve; 5. Abutment plate; 501. Abutment gasket; 6. Sealing sleeve; 7. Rotating rod; 701. Drive gear; 8. Fixing bracket; 801. Second bidirectional screw; 802. V-shaped bracket; 803. Connecting groove; 804. V-shaped insert plate; 9. Embedded gasket. Detailed Implementation

[0018] This utility model provides an auxiliary measuring device for aircraft maintenance.

[0019] Example 1, please refer to Figure 1 , Figure 2 , Figure 3 and Figure 4 The device includes a turntable 1, with a first bidirectional screw 101 rotatably connected to the inner cavity of the turntable 1. A drive rod 2 is rotatably connected to the outer side of the turntable 1. One end of the drive rod 2 passes through the turntable 1 and extends into the inner cavity of the turntable 1. The other end of the drive rod 2 is fixedly connected to the first bidirectional screw 101. An embedding groove 201 is provided on the outer side of the drive rod 2, and the embedding grooves 201 are arranged in sequence. Two sliders 3 are screwed to the outer side of the first bidirectional screw 101. An mounting rod 301 is fixedly connected to the top of the sliders 3. A first limiting ring 302 is screwed to the outer side of the mounting rod 301.

[0020] Please refer to it again. Figure 1 , Figure 2 and Figure 3A main rod 4 is fixedly connected to the top of the turntable 1. A transmission chamber 401 is opened inside the main rod 4. Four gear-driven screws 402 are rotatably connected to the inner wall of the transmission chamber 401. One end of each gear-driven screw 402 passes through the transmission chamber 401 and extends to the outside of the main rod 4. A threaded sleeve 403 is screwed onto the outside of each gear-driven screw 402. An abutment plate 5 is fixedly connected between one end of each threaded sleeve 403 on both the upper and lower sides. An abutment gasket 501 is adhered to one side of the abutment plate 5. Eight sealing sleeves 6 are rotatably connected to the outside of the main rod 4, and the sealing sleeves 6 are evenly distributed. The sealing sleeves 6 are located outside the gear driven screw 402. One end of the sealing sleeve 6 extends into the inside of the threaded sleeve 403. A rotating rod 7 is rotatably connected to the top of the main rod 4. The bottom end of the rotating rod 7 passes through the main rod 4 and extends into the inner cavity of the lower transmission chamber 401. Two drive gears 701 are fixedly connected to the outside of the rotating rod 7. The drive gears 701 mesh with the gear driven screw 402.

[0021] When the top rotating rod 7 is rotated, the two driving gears 701 on its outer side rotate synchronously. Through gear meshing, the four driven screws 402 rotate within the transmission chamber 401. When the driven screws 402 rotate, the threaded sleeves 403 on their outer sides move along the screw axis. Since the threaded sleeves 403 on the upper and lower sides are respectively connected to the same abutment plate 5, the synchronous reverse movement of the two sets of abutment plates 5 is achieved. The sealing sleeve 6 is fitted on the outside of the driven screws 402, which not only guides the movement of the threaded sleeves 403, but also prevents external impurities from entering the transmission mechanism. When the abutment plate 5 moves, the abutment gasket 501 on its inner side contacts the workpiece surface. By adjusting the rotation direction of the rotating rod 7, the abutment plate 5 can be opened or closed, thereby synchronously clamping and fixing the inner and outer diameters of the workpiece, ensuring the positional stability of the workpiece during processing.

[0022] Example 2, please refer to again. Figure 1 , Figure 2 and Figure 4 A fixed frame 8 is fixedly connected to the outer side of the turntable 1. A second bidirectional screw 801 is rotatably connected to the inner side of the fixed frame 8. One end of the second bidirectional screw 801 passes through the fixed frame 8 and extends to the outer side of the fixed frame 8. A V-shaped bracket 802 is screwed to the outer side of the second bidirectional screw 801. A mating groove 803 is opened on one side of the V-shaped bracket 802. A V-shaped insert plate 804 is screwed to the outer side of the second bidirectional screw 801. An embedded gasket 9 is glued to one side of both the V-shaped bracket 802 and the V-shaped insert plate 804. The embedded gasket 9 is in contact with the embedded groove 201.

[0023] When the second bidirectional screw 801 is rotated, the V-shaped retainer 802 and V-shaped insert plate 804 screwed to its outer side move in opposite directions along the screw. Both the V-shaped retainer 802 and the V-shaped insert plate 804 have embedded pads 9 on one side. When they move in opposite directions, the embedded pads 9 gradually engage with the embedded groove 201 on the outer side of the drive rod 2. The mechanical engagement restricts the rotational freedom of the drive rod 2. The V-shaped structure design allows the retainer and insert plate to wrap around the drive rod 2 from both sides. Combined with the positioning function of the docking groove 803, a stable clamping structure is formed, further enhancing the locking effect. When the second bidirectional screw 801 is rotated in the opposite direction, the V-shaped retainer 802 and the V-shaped insert plate 804 separate, the embedded pads 9 disengage from the embedded groove 201, and the drive rod 2 regains its rotational ability. The position of the first bidirectional screw 101 can be readjusted. This mechanism achieves rigid locking through mechanical engagement, which can effectively prevent the drive rod 2 from rotating unexpectedly under force, ensuring the operational stability of the entire equipment.

[0024] Working principle: When the top rotating rod 7 is rotated, the two drive gears 701 on its outer side rotate synchronously. Through gear meshing, the four driven screws 402 rotate within the transmission chamber 401. When the driven screws 402 rotate, the threaded sleeves 403 on their outer sides move axially along the screw. Since the threaded sleeves 403 on the upper and lower sides are respectively connected to the same abutment plate 5, the synchronous reverse movement of the two sets of abutment plates 5 is achieved. The sealing sleeve 6 is fitted on the outside of the driven screw 402, which not only guides the movement of the threaded sleeves 403 but also prevents external impurities from entering the transmission mechanism. When the abutment plate 5 moves, the abutment gasket 501 on its inner side contacts the workpiece surface. By adjusting the rotation direction of the rotating rod 7, the abutment plate 5 can be opened or closed, thereby synchronously clamping and fixing the inner and outer diameters of the workpiece, ensuring the positional stability of the workpiece during processing. When the second bidirectional screw 801 is rotated, its The V-shaped retainer 802 and V-shaped insert plate 804, which are screwed on the outside, move towards each other along the screw. Both the V-shaped retainer 802 and the V-shaped insert plate 804 have embedded pads 9 on one side. When they move towards each other, the embedded pads 9 gradually engage with the embedded grooves 201 on the outside of the drive rod 2. The mechanical engagement restricts the rotational freedom of the drive rod 2. The V-shaped structure design allows the retainer and insert plate to wrap around the drive rod 2 from both sides. Combined with the positioning function of the docking groove 803, a stable clamping structure is formed, which further enhances the locking effect. When the second bidirectional screw 801 is rotated in the opposite direction, the V-shaped retainer 802 and the V-shaped insert plate 804 separate, the embedded pads 9 disengage from the embedded grooves 201, and the drive rod 2 regains its rotational ability. The position of the first bidirectional screw 101 can be readjusted. This mechanism achieves rigid locking through mechanical engagement, which can effectively prevent the drive rod 2 from rotating unexpectedly under force and ensure the operational stability of the entire equipment.

[0025] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. An auxiliary measuring device for aircraft maintenance, comprising a turntable (1), characterized in that: The inner cavity of the turntable (1) is rotatably connected to a first bidirectional screw (101), and the outer side of the turntable (1) is rotatably connected to a drive rod (2). One end of the drive rod (2) passes through the turntable (1) and extends to the inner cavity of the turntable (1), and one end of the drive rod (2) is fixedly connected to the first bidirectional screw (101). The drive rod (2) has an embedded groove (201) on its outer side, and the embedded grooves (201) are arranged in sequence. The outer side of the first bidirectional screw (101) is screwed with two sliders (3). The top of the sliders (3) is fixedly connected with an installation rod (301), and the outer side of the installation rod (301) is screwed with a first limiting ring (302).

2. The auxiliary measuring device for aircraft maintenance according to claim 1, characterized in that: The top of the turntable (1) is fixedly connected to the main rod (4), and the main rod (4) has a transmission chamber (401) inside.

3. The auxiliary measuring device for aircraft maintenance according to claim 2, characterized in that: The inner wall of the transmission chamber (401) is rotatably connected to four gear driven screws (402), one end of which passes through the transmission chamber (401) and extends to the outside of the main rod (4).

4. The auxiliary measuring device for aircraft maintenance according to claim 3, characterized in that: A threaded sleeve (403) is screwed onto the outer side of the driven screw (402) of the gear, and an abutment plate (5) is fixedly connected between one end of the threaded sleeve (403) on the upper and lower sides. An abutment gasket (501) is glued to one side of the abutment plate (5).

5. The auxiliary measuring device for aircraft maintenance according to claim 4, characterized in that: Eight sealing sleeves (6) are rotatably connected to the outside of the main rod (4), and the sealing sleeves (6) are evenly distributed. The sealing sleeves (6) are located outside the gear driven screw (402), and one end of the sealing sleeve (6) extends into the inside of the threaded sleeve (403).

6. The auxiliary measuring device for aircraft maintenance according to claim 5, characterized in that: The top of the main rod (4) is rotatably connected to a rotating rod (7). The bottom end of the rotating rod (7) passes through the main rod (4) and extends to the inner cavity of the transmission chamber (401) on the lower side. Two drive gears (701) are fixedly connected to the outer side of the rotating rod (7). The drive gears (701) mesh with the gear driven screw (402).

7. The auxiliary measuring device for aircraft maintenance according to claim 6, characterized in that: A fixed frame (8) is fixedly connected to the outer side of the turntable (1), and a second bidirectional screw (801) is rotatably connected to the inner side of the fixed frame (8). One end of the second bidirectional screw (801) passes through the fixed frame (8) and extends to the outer side of the fixed frame (8).

8. An auxiliary measuring device for aircraft maintenance according to claim 7, characterized in that: The outer side of the second bidirectional screw (801) is screwed with a V-shaped retainer (802), and a mating groove (803) is provided on one side of the V-shaped retainer (802). The outer side of the second bidirectional screw (801) is screwed with a V-shaped insert plate (804). An embedded gasket (9) is glued to one side of both the V-shaped retainer (802) and the V-shaped insert plate (804), and the embedded gasket (9) is in contact with the embedded groove (201).

Images