Aircraft hub cleaning variable-diameter clamping device

Abstract

The aircraft hub cleaning variable-diameter clamping device comprises a driving mechanism, a driving rotary disc and a driven rotary disc, the driven rotary disc is located above the driving rotary disc and concentric with the driving rotary disc, the middles of the driven rotary disc and the driving rotary disc are hollowed out, and roller mechanisms used for supporting the two rotary discs to rotate are arranged on the peripheries of the driven rotary disc and the driving rotary disc. A clamping column capable of moving in the radial direction of the driven rotary disc is arranged on the driven rotary disc, the driving mechanism drives the driving rotary disc to rotate, and the driving rotary disc is in linkage with the clamping column to move so as to clamp a hub placed on the driven rotary disc or release clamping. And in the clamping state, the clamping force of the clamping column is converted into rotating force through the hub so as to drive the driven turntable to rotate, so that the driven turntable and the driving turntable rotate together. According to the device, various types of hubs with different diameters can be reliably and stably clamped and fixed to the center position of the device through the clamping columns, dirt attached to the surfaces of the hubs is stripped in a scrubbing and spraying mode, automatic cleaning of various types of airplane hubs is achieved, the cleaning efficiency is improved, and the cleaning effect is ensured.

Description

Technical Field

[0001] The invention relates to a diameter-changing clamping device for cleaning an aircraft wheel hub. Background Art

[0002] Aircraft wheels are important components for takeoff and landing. Before each tire change, the wheel must be inspected by eddy current nondestructive testing to ensure that there are no cracks or corrosion in its internal structure. Before eddy current testing, the cleanliness of the wheel plays an extremely important role in improving the accuracy of the testing results.

[0003] However, most of the existing wheel hub cleaning methods still use manual cleaning or semi-automatic cleaning equipment that requires manual assistance. Such cleaning methods are inefficient and it is difficult to ensure uniform cleanliness of the cleaning area, resulting in an unsatisfactory overall cleaning effect.

[0004] In order to reduce their own weight, modern aircraft wheels are generally made of aluminum alloy. This material is easily scratched during the grabbing, transportation and installation process, resulting in the scrapping of the workpiece. At the same time, due to the differences in the size and diameter of the wheels of different models, an efficient and reliable universal grabbing / anchoring mechanism is required to realize the core function of the fully automatic aircraft wheel cleaning equipment. However, the current existing cleaning equipment often cannot meet this demand. Summary of the invention

[0005] The object of the present invention is to provide an aircraft wheel hub cleaning variable diameter clamping device which has a simple structure, low cost, and is easy to operate, and can reliably and stably clamp various types of wheel hubs with different diameters, improve cleaning efficiency, and ensure cleaning effects.

[0006] The object of the present invention is achieved through the following technical measures: A variable diameter clamping device for cleaning an aircraft wheel hub, characterized in that it includes a driving mechanism, a driving turntable and a driven turntable, the driven turntable is located above the driving turntable and the two are concentric, the middle parts of the driven turntable and the driving turntable are hollowed out, and roller mechanisms for supporting the rotation of the two turntables are provided on the peripheries of the driven turntable and the driving turntable, and clamping columns that can move along the radial direction are provided on the driven turntable, and the clamping columns are at least three and distributed along the circumference of the driven turntable, the driving mechanism drives the driving turntable to rotate, and the driving turntable is linked to the clamping columns to move to clamp the wheel hub placed on the driven turntable or release the clamping, and in the clamped state, the clamping force of the clamping columns is converted into rotational force through the wheel hub to drive the driven turntable to rotate so that it rotates together with the driving turntable.

[0007] The present invention utilizes the centripetal force generated by the rotation of the active turntable to push the clamping column, so as to realize blind grasping and releasing of various types of wheel hubs with different diameters. Various types of wheel hubs with different diameters can be reliably and stably clamped and fixed at the center position of the device through the clamping column, and dirt attached to the surface of the wheel hub can be peeled off by brushing and spraying, so as to realize automatic cleaning of various types of aircraft wheel hubs, improve cleaning efficiency and ensure cleaning effect.

[0008] The roller mechanism of the present invention includes at least three groups of rollers, and multiple groups of rollers are distributed along the circumference of the driven turntable and the driving turntable. Each group of rollers consists of vertical rollers rotating along the vertical plane and horizontal rollers rotating along the horizontal plane. The vertical rollers are respectively supported under the edges of the driven turntable and the driving turntable, and the horizontal rollers are respectively in contact with the sides of the driven turntable and the driving turntable.

[0009] In the present invention, at least three slide grooves are arranged on the driven rotating disk along its radial direction, and the slide grooves are slidably matched with the clamping columns.

[0010] The driven rotating disk of the present invention comprises an inner ring, an outer ring and a slide groove, and two ends of the slide groove are connected to the inner ring and the outer ring.

[0011] In the present invention, at least three arc-shaped slide rails are arranged on the active rotating disk, and the arc-shaped slide rails are slidably matched with the clamping columns. When the active rotating disk rotates, the clamping columns are linked to move by the arc-shaped slide rails.

[0012] The active turntable of the present invention comprises an inner ring, an outer ring, connecting rods and arc-shaped slide rails. The connecting rods are at least three pairs and connect the inner ring and the outer ring. Each arc-shaped slide rail is located between a pair of connecting rods and its two ends are respectively connected to the inner end and the outer end of the pair of connecting rods.

[0013] The driving mechanism of the present invention comprises a motor and a power gear, wherein the power gear is connected to the power output shaft of the motor, and latch teeth are arranged on the side circumference of the active turntable, and the power gear is meshed with the latch teeth of the active turntable.

[0014] In the present invention, support rods for supporting the aircraft hub are radially arranged between the inner ring and the outer ring of the driven turntable. The support rods are in multiple numbers and are distributed along the circumference of the driven turntable.

[0015] The clamping column of the present invention is covered with elastic material, and the moderate clamping force is friendly to the interface of the aluminum alloy aircraft wheel hub.

[0016] Compared with the prior art, the present invention has the following significant effects:

[0017] ⑴ The present invention is a universal centripetal clamping device for cleaning aircraft wheel hubs, which can clamp wheel hubs of various aircraft models. It specifically adopts a suspended double-layer master and slave turntable mechanism. The present invention utilizes the centripetal force generated by the rotation of the active turntable to push the clamping column, and can blindly grasp and release various types of wheel hubs with different diameters. The clamping column can reliably and stably clamp various types of wheel hubs with different diameters and fix them in the center position of the device. Dirt attached to the surface of the wheel hub is peeled off by brushing and spraying, thereby realizing automatic cleaning of various types of aircraft wheel hubs, improving cleaning efficiency, ensuring cleaning effect, and solving the technical problem that the wheel hubs of various models are different in size and difficult to be fixed on the rotating cleaning table of the cleaning equipment.

[0018] (2) The present invention has high stability and high reliability, and can ensure the cleaning quality and safety of the wheel hub.

[0019] ⑶ The invention has the advantages of simple structure, low cost, convenient operation, strong practicability and is suitable for wide promotion and use. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0021] Figure 1 It is a three-dimensional structural schematic diagram of the present invention;

[0022] Figure 2 is a top view of the present invention;

[0023] Figure 3 It is the front view of the present invention.

[0024] In the figure: 1-driving turntable, 11-grip, 12-arc slide rail, 13-connecting rod, 2-driven turntable, 21-slide groove, 22-support rod, 3-clamping column, 4-power gear, 5-motor, 6-vertical roller, 7-horizontal roller, 8-bracket. DETAILED DESCRIPTION

[0025] The present invention is further illustrated below through the description of specific implementation methods, but this is not a limitation of the present invention. Those skilled in the art can make various modifications or improvements based on the basic idea of ​​the present invention, but as long as they do not deviate from the basic idea of ​​the present invention, they are all within the protection scope of the present invention.

[0026] like Figures 1 to 3As shown, an aircraft wheel hub cleaning variable diameter clamping device of the present invention is provided, which provides a universal aircraft wheel hub centripetal clamping device for an aircraft wheel hub fully automatic cleaning device, the device comprises a driving mechanism, a driving turntable 1 and a driven turntable 2, the driven turntable 2 is located above the driving turntable 1 and the two are concentric, the middle parts of the driven turntable 2 and the driving turntable 1 are hollowed out, roller mechanisms for supporting the rotation of the two turntables are provided on the peripheries of the driven turntable 2 and the driving turntable 1, a clamping column 3 movable in its radial direction is provided on the driven turntable 2, the clamping column 3 is covered with elastic material, there are three clamping columns 3 and they are distributed along the circumference of the driven turntable 2, the driving mechanism comprises a motor 5 and a power gear 4, the power gear 4 is connected to the power output shaft of the motor 5, a latching tooth 11 is provided on the side circumference of the driving turntable 1, and the power gear 4 is meshed with the latching tooth 11 of the driving turntable 1. The motor 5 drives the power gear 4 to rotate, and the power gear 4 drives the active turntable 1 to rotate. The active turntable 1 is linked with the clamping column 3 to move to clamp the hub placed on the driven turntable 2 or release the clamping. In the clamped state, the clamping force of the clamping column 3 is converted into a rotational force through the hub to drive the driven turntable 2 to rotate so that it rotates together with the active turntable 1, that is, the hub, the driven turntable 2 and the active turntable 1 form a trinity of concentric rotating bodies.

[0027] In this embodiment, the roller mechanism includes four groups of rollers, which are evenly distributed along the circumference of the driven turntable 2 and the driving turntable 1. Each group of rollers is installed on a bracket 8. Each group of rollers consists of a vertical roller 6 rotating along a vertical plane and a horizontal roller 7 rotating along a horizontal plane. The vertical rollers 6 are respectively supported under the edges of the driven turntable 2 and the driving turntable 1, and the horizontal rollers 7 are respectively in contact with the sides of the driven turntable 2 and the driving turntable 1.

[0028] In this embodiment, the driven turntable 2 includes three slide grooves 21, an inner ring and an outer ring arranged along its radial direction and slidingly matched with the clamping column 3, and the two ends of the slide groove 21 are connected to the inner ring and the outer ring. The active turntable 1 includes an inner ring, an outer ring, a connecting rod 13 and three arc-shaped slide rails 12 slidingly matched with the clamping column 3, and the connecting rod 13 is three pairs and connects the inner ring and the outer ring. Each arc-shaped slide rail 12 is located between a pair of connecting rods 13 and its two ends are respectively connected to the inner end and the outer end of the pair of connecting rods 13. When the active turntable 1 rotates, the arc-shaped slide rail 12 rotates accordingly, which will push or pull the clamping column 3 to move inward or outward along the slide groove 21, so that the active turntable 1 can move the clamping column 3 through the arc-shaped slide rail 12 when rotating.

[0029] Support rods 22 for supporting the aircraft wheel hub are radially provided between the inner ring and the outer ring of the driven turntable 2 . In the present embodiment, there are three pairs of support rods 22 which are evenly distributed along the circumference of the driven turntable 2 .

[0030] The use process of the present invention is as follows: first, a mechanical arm is used to place the aircraft wheel hub on the driven turntable of the device, that is, on three pairs of support rods. Then, the motor is started to rotate forward by operating the control panel to drive the power gear to rotate, and the centripetal force generated by the rotation of the active turntable drives the three clamping columns to move toward the center of the turntable until the wheel hub is clamped to fix it in the center position of the driven turntable. This design structure can reliably and stably clamp the aluminum alloy wheel hub and provide a wide inlet / outlet material connection space for wheel hubs of different calibers; when the clamping column touches the wheel hub, the clamping force of the clamping column will be converted into a rotational force through the wheel hub and transmitted to the driven turntable, so that the active turntable, the wheel hub and the driven turntable form a trinity of concentric rotating bodies under the action of the rotational torque. During this process, the high-pressure nozzle sprays the wheel hub in all directions (nozzles are provided on the outside of the driven turntable and the active turntable and under the middle hollow part), and the rotating roller brush brushes the wheel hub. When the cleaning is completed, the motor rotates in the opposite direction, and the active turntable pulls the three clamping columns in the direction of loosening the hub. The three clamping columns loosen the cleaned hub, and then the hub is taken out using the robotic arm. The entire process does not require manual intervention, which not only improves the cleaning efficiency but also ensures the uniform cleanliness of all parts of the hub, providing accurate detection guarantee for subsequent non-destructive testing.

[0031] The above embodiments are merely illustrative of the principles and effects of the present invention, and are not intended to limit the present invention. Anyone familiar with the technology may modify or change the above embodiments without violating the spirit and scope of the present invention. Therefore, all equivalent modifications or changes made by a person with ordinary knowledge in the technical field without departing from the spirit and technical ideas disclosed by the present invention shall still be covered by the claims of the present invention.

Claims

1. An aircraft wheel hub cleaning variable diameter clamping device, characterized in that: The invention comprises a driving mechanism, a driving turntable and a driven turntable, wherein the driven turntable is located above the driving turntable and the two are concentric with each other, the middle parts of the driven turntable and the driving turntable are hollowed out, roller mechanisms for supporting the rotation of the two turntables are arranged around the driven turntable and the driving turntable, clamping columns movable along the radial direction thereof are arranged on the driven turntable, the clamping columns are at least three and are distributed along the circumference of the driven turntable, the driving mechanism drives the driving turntable to rotate, the driving turntable is linked to the clamping columns to move to clamp the wheel hub placed on the driven turntable or to release the clamping, and in the clamped state, the clamping force of the clamping columns is converted into rotational force through the wheel hub to drive the driven turntable to rotate so that it rotates together with the driving turntable.

2. The aircraft wheel hub cleaning variable diameter clamping device according to claim 1, characterized in that: The roller mechanism includes at least three groups of rollers, and multiple groups of rollers are distributed along the circumference of the driven turntable and the driving turntable. Each group of rollers consists of vertical rollers rotating along a vertical plane and horizontal rollers rotating along a horizontal plane. The vertical rollers are respectively supported under the edges of the driven turntable and the driving turntable, and the horizontal rollers are respectively in contact with the sides of the driven turntable and the driving turntable.

3. The aircraft wheel hub cleaning variable diameter clamping device according to claim 2, characterized in that: At least three slide grooves are arranged on the driven rotating disk along its radial direction, and the slide grooves are slidably matched with the clamping columns.

4. The aircraft wheel hub cleaning variable diameter clamping device according to claim 3, characterized in that: The driven rotating disk comprises an inner ring, an outer ring and a slide groove, and two ends of the slide groove are connected to the inner ring and the outer ring.

5. The aircraft wheel hub cleaning variable diameter clamping device according to claim 4, characterized in that: At least three arc-shaped slide rails are arranged on the active rotating disk, and the arc-shaped slide rails are slidably matched with the clamping columns. When the active rotating disk rotates, the clamping columns are linked to move by the arc-shaped slide rails.

6. The aircraft wheel hub cleaning variable diameter clamping device according to claim 5, characterized in that: The active turntable includes an inner ring, an outer ring, connecting rods and arc-shaped slide rails. The connecting rods are at least three pairs and connect the inner ring and the outer ring. Each arc-shaped slide rail is located between a pair of connecting rods and its two ends are respectively connected to the inner end and the outer end of the pair of connecting rods.

7. The aircraft wheel hub cleaning variable diameter clamping device according to claim 6, characterized in that: The driving mechanism comprises a motor and a power gear, wherein the power gear is connected to the power output shaft of the motor, and latch teeth are arranged on the side circumference of the active rotating disk, and the power gear is meshed with the latch teeth of the active rotating disk.

8. The aircraft wheel hub cleaning variable diameter clamping device according to claim 7, characterized in that: Support rods for supporting the hub are radially arranged between the inner ring and the outer ring of the driven rotating disk. There are several support rods distributed along the circumference of the driven rotating disk.

9. The aircraft wheel hub cleaning variable diameter clamping device according to claim 8, characterized in that: The clamping column is covered with elastic material.

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