A platform device for workpiece radiographic testing

Abstract

The utility model relates to lifting platform device technical field, the utility model provides a platform device for workpiece ray detection, including frame, lifting stand, rotary tray, lifting transmission subassembly and horizontal transmission rod, lifting stand is located on the frame slidingly, and rotary tray is rotatably arranged on the lifting stand, lifting transmission subassembly is provided with a group at four corners of lifting stand respectively, horizontal transmission rod is two and is located lifting stand both sides respectively, and the horizontal transmission rod is connected between two groups lifting transmission subassembly of being located the same side of lifting stand, to make four lifting screw rods in four groups lifting transmission subassembly synchronous lifting. Through the above technical scheme, the technical problem that the platform device of traditional only setting telescopic element in the center in the related art cannot provide stable supporting force when facing big mass workpiece is solved.

Description

Technical Field

[0001] The embodiments of this utility model relate to the technical field of lifting platform devices, specifically, to a platform device for workpiece X-ray inspection. Background Technology

[0002] Radiographic testing, as an advanced and effective non-destructive testing technology, is widely used in many fields such as aerospace, automobile manufacturing, and machining to identify quality characteristics such as internal defects and structural integrity of workpieces.

[0003] When using radiographic testing to inspect large workpieces, the workpiece needs to be placed on a platform to facilitate radiographic irradiation and inspection. During the inspection process, in order to obtain comprehensive and accurate inspection data, it is sometimes necessary to adjust the angle and height of the workpiece.

[0004] Traditional lifting platforms mostly use a telescopic element located at the center. When large workpieces are placed on the platform, due to uneven distribution of the center of gravity or dispersed stress points, the telescopic element at the center below the platform alone cannot provide stable support. During lifting, the workpiece may sway, tilt, or even become unbalanced. This not only affects the accuracy of X-ray inspection but may also lead to workpiece damage or safety accidents.

[0005] Therefore, developing a platform device for X-ray inspection of large-mass workpieces that can provide stable support, while possessing high load-bearing capacity and low maintenance costs has become an important problem that urgently needs to be solved in the field of X-ray inspection. It is of key significance for improving the accuracy, safety and efficiency of X-ray inspection of large-mass workpieces. Utility Model Content

[0006] To overcome the above-mentioned defects, the embodiments of this utility model provide a platform device for radiographic inspection of workpieces, which solves the technical problem in the related art that traditional platform devices with only a telescopic element set in the center cannot provide stable support force when facing large-mass workpieces.

[0007] According to one aspect, at least one embodiment of the present invention provides a platform device for radiographic inspection of workpieces, including a frame, a lifting frame, a rotating tray, a lifting transmission assembly, and a horizontal transmission rod, wherein the lifting frame is slidably disposed on the frame, and the rotating tray is rotatably disposed on the lifting frame; The lifting transmission assembly includes a transmission base, a lifting bevel gear, and a lifting screw. The transmission base is mounted on the frame and has a hollow cavity inside. The lifting bevel gear is rotatably mounted inside the transmission base and has a threaded hole at its center. The lifting screw passes through the transmission base and is threaded into the threaded hole. The top end of the lifting screw is rotatably connected to the lifting frame. The lifting transmission assembly is provided at each of the four corners of the lifting frame. There are two horizontal transmission rods located on both sides of the lifting frame. The two sets of lifting transmission assemblies located on the same side of the lifting frame are connected by the horizontal transmission rods. Each horizontal transmission rod has a horizontal transmission bevel gear at both ends. The two horizontal transmission bevel gears are located in the two transmission bases and mesh with the two lifting bevel gears respectively. The two horizontal transmission bevel gears can rotate synchronously under the drive of an external motor, so that the four lifting screws in the four sets of lifting transmission assemblies can lift and lower synchronously.

[0008] For example, in at least one embodiment of the present invention, a platform device for radiographic inspection of a workpiece further includes: The frame is equipped with a dual-shaft reducer for connecting an external motor. The two output shafts of the dual-shaft reducer are each driven by a primary transmission rod. The two primary transmission rods are each driven by two secondary transmission rods. The two secondary transmission rods are driven by two horizontal transmission rods.

[0009] For example, in at least one embodiment of the present invention, a platform device for radiographic inspection of a workpiece further includes: The lifting frame has a support plate, the rotating tray is located above the support plate, and the lower surface of the rotating tray is provided with a support rod along the radial direction. Multiple support rods are provided along the circumference of the rotating tray.

[0010] For example, in at least one embodiment of the present invention, a platform device for radiographic inspection of a workpiece further includes: The bottom of the support rod is provided with multiple fixing seats along its own length, and the fixing seats are embedded with ball bearings for contacting the support plate.

[0011] For example, in at least one embodiment of the present invention, a platform device for radiographic inspection of a workpiece further includes: The fixed base and the support rod are detachably connected.

[0012] For example, in at least one embodiment of the present invention, a platform device for radiographic inspection of a workpiece further includes: A locking frame is oscillating on the support rod. The locking frames are arranged in pairs and symmetrically located on both sides of the ball. A rubber locking plate is provided at the oscillating end of the locking frame. The rubber locking plate can be engaged between the ball and the support plate under the action of the locking frame to lock the ball.

[0013] For example, in at least one embodiment of the present invention, a platform device for radiographic inspection of a workpiece further includes: The frame is equipped with a protective cover, and the dual-shaft reducer, the primary transmission rod, the secondary transmission rod, the lifting transmission assembly, and the horizontal transmission rod are all located inside the protective cover.

[0014] For example, in at least one embodiment of the present invention, a platform device for radiographic inspection of a workpiece further includes: The support plate has protective baffles at its edges.

[0015] The beneficial effects of the embodiments of this utility model are as follows: In this invention, an external motor is connected to a horizontal transmission rod. When the motor starts, it drives the two horizontal transmission rods to rotate synchronously, which in turn causes the four lifting bevel gears in the four sets of lifting transmission components to rotate synchronously. Since the lifting bevel gears and the lifting screws are threadedly connected, the rotation of the lifting bevel gears is converted into the linear motion of the lifting screws. The four lifting screws rise or fall synchronously, thus jointly driving the lifting frame and the rotating tray to rise and fall smoothly.

[0016] A set of lifting transmission components is set at each of the four corners of the lifting frame. This layout can distribute the weight of the workpiece more evenly. Compared with the traditional method of setting the telescopic element in the center, the four-corner support greatly increases the support points, so that the center of gravity of the workpiece can be more reasonably distributed and effectively prevent the workpiece from swaying, tilting or even becoming unbalanced during lifting, thus providing stable support for the workpiece. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model, the accompanying drawings used in the description of the embodiments of this utility model will be briefly introduced below. Obviously, the drawings described below are merely some exemplary embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the content of the exemplary embodiments of this utility model and these drawings without any creative effort.

[0018] Figure 1 This is a schematic diagram of the structure of a workpiece X-ray inspection platform device in one embodiment of the present invention; Figure 2 for Figure 1 A schematic diagram of the structure of a workpiece X-ray inspection platform device after removing the protective cover in one embodiment; Figure 3 for Figure 1 A schematic diagram of the overall transmission structure in the embodiment; Figure 4 for Figure 1 A front view schematic diagram of a workpiece X-ray inspection platform device in one embodiment; Figure 5 for Figure 1A schematic diagram of the rotating tray structure in the embodiment; Figure 6 for Figure 5 Enlarged view of point A in the middle; Figure 7 for Figure 1 A schematic diagram of the structure at the end of the support rod in the embodiment.

[0019] In the diagram: 1. Frame, 2. Lifting frame, 3. Rotating tray, 4. Lifting transmission assembly, 5. Horizontal transmission rod, 401. Transmission base, 402. Lifting bevel gear, 403. Lifting lead screw, 6. Horizontal transmission bevel gear, 7. Dual-shaft reducer, 8. First-stage transmission rod, 9. Second-stage transmission rod, 10. Support plate, 11. Support rod, 12. Fixed seat, 13. Ball bearing, 14. Locking frame, 15. Rubber locking plate, 16. Protective cover, 17. Protective baffle. Detailed Implementation

[0020] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit its scope.

[0021] To keep the drawings concise, only the parts relevant to the utility model are shown schematically in each drawing; these do not represent the actual structure of the product. Furthermore, for ease of understanding, in some drawings, only one of the components with the same structure or function is schematically shown, or only one is labeled. In this document, "a" not only means "only one," but can also mean "more than one," and "several" includes "two" and "more than two."

[0022] In this document, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0023] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0024] In the description of this embodiment, terms such as "upper," "lower," "left," and "right" are based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of description and simplification of operation, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0025] Furthermore, in the description of this application, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0026] like Figures 1-7 As shown, this invention illustrates a workpiece X-ray inspection platform device according to one embodiment of the present invention, comprising a frame 1, a lifting frame 2, a rotating tray 3, a lifting transmission assembly 4, and a horizontal transmission rod 5. The frame 1 serves as the basic support structure for the entire platform device. The lifting frame 2 is slidably mounted on the frame 1, and the rotating tray 3 is rotatably mounted on the lifting frame 2, providing a support surface for placing the workpiece. The rotating tray 3 can rotate freely around its center, meeting the requirements for adjusting the workpiece angle during the inspection process.

[0027] In the lifting transmission assembly 4, the transmission base 401 is mounted on the frame 1 and has a hollow cavity inside. The lifting bevel gear 402 is rotatably mounted in the hollow cavity of the transmission base 401, and a threaded hole is machined in its center. The lifting screw 403 passes through the transmission base 401 and is threadedly connected to the threaded hole of the lifting bevel gear 402. The top end of the lifting screw 403 is connected to the lifting frame 2, so that when the lifting bevel gear 402 rotates, the lifting screw 403 can drive the lifting frame 2 to rise or fall.

[0028] There are two horizontal transmission rods 5, located on both sides of the lifting frame 2. Both ends of the horizontal transmission rods 5 extend into two transmission bases 401 located on one side of the lifting frame 2. Horizontal transmission bevel gears 6 are provided at both ends of the horizontal transmission rods 5, and these bevel gears 6 mesh with lifting bevel gears 402. When the horizontal transmission rods 5 rotate, they drive the lifting bevel gears 402 to rotate synchronously via the horizontal transmission bevel gears 6.

[0029] Working principle: An external motor is connected to the horizontal transmission rod 5. When the motor starts, it drives the two horizontal transmission rods 5 to rotate synchronously, which in turn causes the four lifting bevel gears 402 in the four sets of lifting transmission components 4 to rotate synchronously. Since the lifting bevel gears 402 and the lifting screws 403 are threadedly connected, the rotation of the lifting bevel gears 402 is converted into the linear motion of the lifting screws 403. The four lifting screws 403 rise or fall synchronously, thus jointly driving the lifting frame 2 and the rotating tray 3 to rise and fall smoothly.

[0030] A set of lifting transmission components 4 is set at each of the four corners of the lifting frame 2. This layout can distribute the weight of the workpiece more evenly. Compared with the traditional method of setting the telescopic element in the center, the four-corner support greatly increases the support points, so that the center of gravity of the workpiece can be more reasonably distributed and effectively prevent the workpiece from swaying, tilting or even becoming unbalanced during the lifting process, thus providing stable support for the workpiece.

[0031] In some examples, such as Figures 1-3 As shown, the dual-shaft reducer 7 is mounted on the frame 1, located on the side of the frame 1, and connected to an external motor. The dual-shaft reducer 7 has two output shafts, located on both sides respectively, which can simultaneously provide power to the two horizontal transmission rods 5 on both sides, ensuring that the lifting transmission components 4 on both sides of the platform device operate synchronously.

[0032] There are two primary transmission rods 8, which are respectively connected to the two output shafts of the dual-shaft reducer 7. One end of the primary transmission rod 8 is connected to the output shaft of the dual-shaft reducer 7 through a coupling, and the other end, which is equipped with a bevel gear, meshes with the bevel gear at one end of the secondary transmission rod 9. The bevel gear at the other end of the secondary transmission rod 9 meshes with the lifting bevel gear 402 in the transmission base 401, thereby driving the lifting bevel gear 402 to rotate.

[0033] Working principle: The power output from the external motor is transmitted to the dual-shaft reducer 7, which converts the high-speed rotation of the motor into a low-speed, high-torque output. The power output from the dual-shaft reducer 7 is transmitted sequentially to the lifting bevel gear 402 in the transmission base 401 through the primary transmission rod 8 and the secondary transmission rod 9, driving the lifting screw 403 to move. At the same time, through the meshing of the lifting bevel gear 402 and the horizontal transmission bevel gear 6, the power is transmitted to the horizontal transmission rod 5, and finally to another set of lifting transmission components 4, so that the four sets of lifting transmission components 4 operate synchronously to realize the lifting of the platform device.

[0034] In some examples, such as Figure 1 , 2As shown in Figures 5, 6, and 7, a support plate 10 is provided on the lifting frame 2. The support plate 10 is a flat metal plate. The rotating tray 3 is located above the support plate 10. Support rods 11 are radially arranged on the lower surface of the rotating tray 3, and multiple support rods 11 are evenly distributed along the circumference of the rotating tray 3. At the bottom of each support rod 11, multiple fixing seats 12 are arranged along its own length. The fixing seats 12 are machined with grooves for embedding balls 13. Part of the balls 13 protrudes from the surface of the fixing seat 12 and can contact the support plate 10. When the rotating tray 3 rotates, the balls 13 roll along the surface of the support plate 10. The fixing seats 12 and the support rods 11 are detachably connected for easy maintenance, repair, or replacement of parts. Locking frames 14 are oscillatingly arranged on the support rods 11. The locking frames 14 are arranged in pairs and symmetrically located on both sides of the balls 13. A rubber locking plate 15 is provided at the swing end of the locking frame 14. The rubber locking plate 15 can be inserted into the gap between the ball 13 and the support plate 10, thereby restricting the rolling of the ball 13.

[0035] Working Principle: Multiple support rods 11 are radially arranged and circumferentially distributed along the lower surface of the rotating pallet 3. These multiple support rods 11 can more evenly bear the weight of the workpiece, improving the structural strength and load-bearing capacity of the rotating pallet 3. The ball bearings 13 embedded in the fixed seat 12 contact the support plate 10. When the rotating pallet 3 rotates, the ball bearings 13 roll within the fixed seat 12 and simultaneously roll along the surface of the support plate 10. The multiple ball bearings 13 remain in contact with the support plate 10 throughout the rotation of the rotating pallet 3, providing continuous and stable support and ensuring that the rotating pallet 3 does not wobble or become unstable during rotation. The detachable connection design between the fixed seat 12 and the support rods 11 allows for easy removal of the fixed seat 12 from the support rods 11 for repair or replacement if wear or damage occurs during equipment use, reducing maintenance costs. When the rotating tray 3 is not required to rotate, the rubber locking plate 15 at the swing end of the locking frame 14 is engaged in the gap between the ball 13 and the support plate 10 by swinging the locking frame 14, so that the ball 13 can no longer roll, thereby restricting the rotation of the rotating tray 3 and ensuring the stability of the rotating tray 3 when it is not required to rotate.

[0036] In some examples, such as Figure 1 As shown, a protective cover 16 is installed on the frame 1, which covers the dual-shaft reducer 7, the primary transmission rod 8, the secondary transmission rod 9, the lifting transmission assembly 4, and the horizontal transmission rod 5. A protective baffle 17 is installed at the edge of the support plate 10. The protective baffle 17 is integrally formed with the support plate 10 or fixed to the edge of the support plate 10 by welding, bolting, or other methods, preventing the workpiece from slipping off the rotating pallet 3 due to accidents and ensuring safety.

[0037] Working Principle: In actual working environments, dust, debris, and other contaminants may be present. If these contaminants enter the transmission components, they may cause accelerated wear and reduced transmission efficiency. The protective cover 16 encloses the transmission components internally, effectively preventing the intrusion of external contaminants. At the same time, the protective cover 16 also prevents operators from accidentally contacting the operating transmission components during equipment operation, avoiding accidental injury and improving equipment safety.

[0038] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A platform device for use in the radiographic inspection of a workpiece, characterised in that, It includes a frame (1), a lifting frame (2), a rotating tray (3), a lifting transmission assembly (4), and a horizontal transmission rod (5). The lifting frame (2) is slidably mounted on the frame (1), and the rotating tray (3) is rotatably mounted on the lifting frame (2). The lifting transmission assembly (4) includes a transmission base (401), a lifting bevel gear (402), and a lifting screw (403). The transmission base (401) is mounted on the frame (1) and has a hollow cavity inside. The lifting bevel gear (402) is rotatably mounted inside the transmission base (401) and has a threaded hole in the center. The lifting screw (403) passes through the transmission base (401) and is threaded into the threaded hole. The top end of the lifting screw (403) is rotatably connected to the lifting frame (2). The lifting transmission assembly (4) is provided at each of the four corners of the lifting frame (2). There are two horizontal transmission rods (5) located on both sides of the lifting frame (2). The two sets of lifting transmission assemblies (4) located on the same side of the lifting frame (2) are connected by the horizontal transmission rods (5). Both ends of the horizontal transmission rods (5) have horizontal transmission bevel gears (6). The two horizontal transmission bevel gears (6) are located in the two transmission bases (401) respectively and mesh with the two lifting bevel gears (402) respectively. The two horizontal transmission bevel gears (6) can rotate synchronously under the drive of an external motor so that the four lifting screws (403) in the four sets of lifting transmission assemblies (4) can lift synchronously.

2. The platform device for workpiece radiographic testing according to claim 1, wherein, The frame (1) is provided with a dual-shaft reducer (7) for connecting an external motor. The two output shafts of the dual-shaft reducer (7) are driven to be connected to a primary transmission rod (8). The two primary transmission rods (8) are driven to be connected to two secondary transmission rods (9). The two secondary transmission rods (9) are driven to be connected to the two horizontal transmission rods (5).

3. The platform apparatus for workpiece radiographic testing of claim 1, wherein, The lifting frame (2) has a support plate (10), the rotating tray (3) is located above the support plate (10), and the lower surface of the rotating tray (3) is provided with a support rod (11) in the radial direction. Multiple support rods (11) are provided around the rotating tray (3).

4. The platform apparatus for workpiece radiographic testing according to claim 3, wherein, The bottom of the support rod (11) is provided with a plurality of fixed seats (12) along its own length direction, and the fixed seats (12) are embedded with balls (13) for contacting the support plate (10).

5. The platform apparatus for workpiece radiographic testing of claim 4, wherein, The fixed base (12) and the support rod (11) are detachably connected.

6. The platform apparatus for workpiece radiographic testing of claim 4, wherein, A locking frame (14) is swaying on the support rod (11). The locking frames (14) are arranged in pairs and symmetrically located on both sides of the ball (13). A rubber locking plate (15) is provided at the swing end of the locking frame (14). The rubber locking plate (15) can be inserted between the ball (13) and the support plate (10) under the drive of the locking frame (14) to lock the ball (13).

7. The platform apparatus for workpiece radiographic inspection of claim 2, wherein, The rack (1) is provided with a protective cover (16), and the double-shaft speed reducer (7), the primary transmission rod (8), the secondary transmission rod (9), the lifting transmission assembly (4) and the horizontal transmission rod (5) are located in the protective cover (16).

8. The platform apparatus for workpiece radiographic inspection of claim 3, wherein, The edge of the supporting plate (10) is provided with a protective baffle (17).

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