Folding scanning frame of RCS (radar cross section) detector

Abstract

The device comprises a bottom plate, a driving mechanism, a first-stage telescopic assembly, a second-stage telescopic assembly and a mounting plate, the first-stage telescopic assembly is arranged on the bottom plate in a sliding mode, the second-stage telescopic assembly is arranged on the first-stage telescopic assembly in a sliding mode, the mounting plate is arranged on the second-stage telescopic assembly in a sliding mode, and the driving mechanism is arranged on the bottom plate and used for driving the first-stage telescopic assembly to slide. When the first-stage telescopic assembly slides, the second-stage telescopic assembly is driven to slide on the first-stage telescopic assembly in the same direction, and when the second-stage telescopic assembly slides, the mounting plate is driven to slide on the second-stage telescopic assembly in the same direction. The beneficial effects of the utility model lie in that the folding and stretching of the whole structure are realized through a linkage stretching mode, a larger scanning stroke can be realized in a smaller space, and the use portability and practicability are improved.

Description

Technical Field

[0001] This utility model belongs to the technical field of RCS detection equipment, specifically relating to a folding scanning frame for an RCS detector. Background Technology

[0002] As a device for measuring the reflectivity of materials, the RCS (Reflective Cosmetic Detector) is commonly used in the field of non-destructive testing (NDT) of stealth materials, such as for detecting internal defects in pipes, aircraft components, or other structures.

[0003] RCS (Rapid Scanning Control) detectors are typically mounted on a movable scanning gantry. During inspection, the gantry moves the detector to perform the scan. Generally, the scanning stroke of an RCS detector is 2 meters or more. However, the physical dimensions of a traditional scanning gantry are no smaller than the scanning stroke of the detector. For example, to achieve a scanning stroke of 4 meters or more, the physical dimensions of a traditional scanning gantry often need to be designed to be 4 meters or longer. This is because the scanning gantry needs sufficient space to accommodate the inspection equipment and to ensure that it can cover the entire 4-meter scanning range. This leads to the following drawbacks:

[0004] 1. Space limitation: In some application scenarios, there may not be enough space to accommodate a 4-meter-long scanning gantry.

[0005] 2. Cost and materials: Longer scanning frames require more materials and cost to manufacture.

[0006] 3. Weight and stability: As the size increases, the weight of the scanning carriage also increases, requiring a stronger support structure to maintain stability.

[0007] 4. Mobility and portability: Longer scanning frames are more difficult to move and transport. Utility Model Content

[0008] The purpose of this utility model is to overcome the shortcomings of the prior art and provide a folding scanning frame for an RCS detector. The folding and extension of the overall structure can be achieved through a linkage telescopic mechanism, which can achieve a large scanning stroke in a small space, thereby improving portability and practicality.

[0009] The objective of this utility model is achieved through the following technical solution:

[0010] A folding scanning frame for an RCS detector includes a base plate, a drive mechanism, a primary telescopic component, a secondary telescopic component, and a mounting plate. The primary telescopic component is slidably mounted on the base plate, the secondary telescopic component is slidably mounted on the primary telescopic component, and the mounting plate is slidably mounted on the secondary telescopic component. The drive mechanism is mounted on the base plate and is used to drive the primary telescopic component to slide. When the primary telescopic component slides, it causes the secondary telescopic component to slide in the same direction on the primary telescopic component. When the secondary telescopic component slides, it causes the mounting plate to slide in the same direction on the secondary telescopic component.

[0011] Furthermore, both the primary and secondary telescopic components include a telescopic plate, a synchronous belt, pulleys, and a tensioning mechanism. The telescopic plate in the primary telescopic component is slidably mounted on the base plate, and the telescopic plate in the secondary telescopic component is slidably mounted on the top surface of the telescopic plate in the primary telescopic component. The mounting plate is slidably mounted on the top surface of the telescopic plate in the secondary telescopic component. Openings are provided at both ends of the telescopic plate along its sliding direction. A tensioning mechanism is located at the openings on the top surface of the telescopic plate, and pulleys are mounted on the tensioning mechanism. The synchronous belt is positioned along the sliding direction of the telescopic plate, with both ends passing through the two openings and wound around the two pulleys. The pulley located below the telescopic plate in the primary telescopic component is fixedly connected to the center of the base plate via a pressing assembly. The pulley located above the telescopic plate in the primary telescopic component is fixedly connected to the center of the telescopic plate in the secondary telescopic component via a pressing assembly. The pulley located below the telescopic plate in the secondary telescopic component is fixedly connected to the center of the telescopic plate in the primary telescopic component via a pressing assembly. The pulley located above the telescopic plate in the secondary telescopic component is fixedly connected to the center of the mounting plate via a pressing assembly.

[0012] Furthermore, the drive mechanism includes a motor and a lead screw and nut assembly mounted on the base plate. The lead screw in the lead screw and nut assembly is connected to the output shaft of the motor, and the nut in the lead screw and nut assembly is connected to the telescopic plate in the first-stage telescopic assembly.

[0013] Furthermore, the bottom sides of the telescopic plate in the primary telescopic assembly are tactilely connected to the base plate via a cross roller guide pair. The cross roller guide pair includes a movable guide rail and a fixed guide rail arranged along the sliding direction of the telescopic plate. The fixed guide rail is fixed to the base plate, and the movable guide rail is fixed to the bottom of the telescopic plate in the primary telescopic assembly. V-grooves are provided on the opposite sides of the movable and fixed guide rails along the sliding direction of the telescopic plate. A retainer is fixed to the movable guide rail along the V-groove, and multiple cross-arranged rollers are installed on the retainer along its length. The rollers are tactilely connected to the V-grooves on the fixed guide rail.

[0014] Furthermore, the tensioning mechanism includes a slide, a fixed seat, and an adjusting bolt. A slide groove is provided at the opening of the telescopic plate along the sliding direction of the telescopic plate. The slide is slidably disposed in the slide groove. The pulley is disposed on the slide. The fixed seat is disposed in the slide groove at one end away from the synchronous belt. An adjusting bolt is threadedly connected to the fixed seat. The adjusting bolt passes through the fixed seat and is threadedly connected to the slide.

[0015] Furthermore, the crimping assembly includes a fixed plate and a pressure plate. The fixed plate is fixedly installed, and a groove is opened on the top surface of the fixed plate. The timing belt passes through the groove, and the pressure plate is fixed to the top of the fixed plate by bolts and presses the timing belt.

[0016] Furthermore, the top surface of the telescopic plate in the secondary telescopic assembly is provided with slide rails on both sides along the sliding direction of the telescopic plate, and the bottom surface of the mounting plate is provided with a slider that is slidably connected to the slide rails.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] This utility model, through the arrangement of a base plate, a drive mechanism, a primary telescopic component, a secondary telescopic component, and a mounting plate, enables the primary telescopic component, the secondary telescopic component, and the mounting plate to slide in the same direction under the drive of the drive mechanism. Furthermore, through the coordinated telescopic extension and retraction of the primary telescopic component, the secondary telescopic component, and the mounting plate, the overall structure of the scanning frame can be folded and extended. After the RCS detector is mounted on the mounting plate, a larger scanning stroke can be achieved in a smaller space, improving portability and practicality. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0020] Figure 2 for Figure 1 A schematic diagram of a local structure in the image;

[0021] Figure 3 for Figure 2 Enlarged schematic diagram of the structure at point A in the diagram;

[0022] Figure 4 This is a schematic diagram of the crimping assembly in this utility model;

[0023] Figure 5 This is a schematic diagram of the installation of the mounting plate in this utility model;

[0024] Figure 6 This is a schematic diagram of the cross roller guide pair in this utility model;

[0025] Figure 7 This is an assembly diagram of the primary telescopic component, the base plate, and the secondary telescopic component in this utility model.

[0026] In the diagram: 1. Base plate; 2. Drive mechanism; 21. Motor; 22. Lead screw and nut pair; 3. First-stage telescopic assembly; 4. Second-stage telescopic assembly; 5. Mounting plate; 6. Telescopic plate; 7. Synchronous belt; 8. Pulley; 9. Tensioning mechanism; 91. Slide; 92. Fixed seat; 93. Adjusting bolt; 10. Pressing assembly; 101. Fixed plate; 102. Pressure plate; 11. Moving guide rail; 12. Fixed guide rail; 13. V-groove; 14. Cage; 15. Roller; 16. Slide groove; 17. Slide rail; 18. Slider. Detailed Implementation

[0027] The present invention will be further described below with reference to the accompanying drawings, but the scope of protection of the present invention is not limited to the following description.

[0028] like Figure 1As shown, a folding scanning frame for an RCS detector includes a base plate, a drive mechanism, a primary telescopic component, a secondary telescopic component, and a mounting plate. The primary telescopic component is slidably mounted on the base plate, the secondary telescopic component is slidably mounted on the primary telescopic component, and the mounting plate is slidably mounted on the secondary telescopic component. The drive mechanism is mounted on the base plate and is used to drive the primary telescopic component to slide. When the primary telescopic component slides, it causes the secondary telescopic component to slide in the same direction on the primary telescopic component. When the secondary telescopic component slides, it causes the mounting plate to slide in the same direction on the secondary telescopic component.

[0029] The mounting plate is used to mount the RCS detector and can be made of Q345 low-alloy high-strength structural steel. After the RCS detector is mounted on the mounting plate, it is driven by the drive mechanism. The reciprocating sliding of the first-stage telescopic component, the second-stage telescopic component, and the mounting plate drives the RCS detector to move, and then the RCS detector performs reciprocating scanning.

[0030] like Figures 1-3 As shown, both the primary and secondary telescopic components include a telescopic plate, a synchronous belt, pulleys, and a tensioning mechanism. The telescopic plate in the primary telescopic component is slidably mounted on the base plate, while the telescopic plate in the secondary telescopic component is slidably mounted on the top surface of the telescopic plate in the primary telescopic component. A mounting plate is slidably mounted on the top surface of the telescopic plate in the secondary telescopic component. Openings are provided at both ends of the telescopic plate along its sliding direction. A tensioning mechanism is located at each opening on the top surface of the telescopic plate, and pulleys are mounted on the tensioning mechanism. The synchronous belt is positioned along the sliding direction of the telescopic plate, with both ends passing through the two openings and wound around the two pulleys. The tensioning mechanism can tension the synchronous belt. The pulley located below the telescopic plate in the primary telescopic component is fixedly connected to the center of the base plate via a pressing assembly. The pulley located above the telescopic plate in the primary telescopic component is fixedly connected to the center of the telescopic plate in the secondary telescopic component via a pressing assembly. The pulley located below the telescopic plate in the secondary telescopic component is fixedly connected to the center of the telescopic plate in the primary telescopic component via a pressing assembly. The pulley located above the telescopic plate in the secondary telescopic component is fixedly connected to the center of the mounting plate via a pressing assembly.

[0031] like Figure 7As shown, when the drive mechanism drives the telescopic plate in the first-stage telescopic assembly to slide back and forth on the base plate, the synchronous belt below the telescopic plate is fixed to the base plate, thus pulling the synchronous belt in the first-stage telescopic assembly to move around the pulley. Since the synchronous belt in the first-stage telescopic assembly is fixed to the telescopic plate in the second-stage telescopic assembly, the synchronous belt in the first-stage telescopic assembly synchronously pulls the telescopic plate in the second-stage telescopic assembly to slide in the same direction on the telescopic plate in the first-stage telescopic assembly. Similarly, the synchronous belt in the second-stage telescopic assembly also pulls the mounting plate to slide in the same direction on the telescopic plate in the second-stage telescopic assembly. Ultimately, the coordinated telescopic movement of the first-stage telescopic assembly, the second-stage telescopic assembly, and the mounting plate is achieved through the unidirectional sliding of the two telescopic plates and the mounting plate, thereby realizing the folding and unfolding of the scanning frame. Furthermore, the travel distance of the mounting plate can be twice that of the telescopic plate in the first-stage telescopic assembly, thus achieving twice the scanning distance, for example, a 4m scanning distance within a 2m length range.

[0032] like Figure 3 As shown, the tensioning mechanism includes a slide block, a fixed seat, and an adjusting bolt. A groove is provided on the telescopic plate at the opening along the sliding direction of the plate. The slide block is slidably installed in the groove, and the pulley is mounted on the slide block. The fixed seat is fixed in the groove at the end away from the timing belt. An adjusting bolt is threaded onto the fixed seat, passing through the fixed seat and threadedly connected to the slide block. To tension the timing belt, the adjusting bolt is turned to disengage it from the slide block. Then, the two slide blocks are slid towards their corresponding fixed seats while the adjusting bolt is turned to tighten it together with the slide block until the timing belt is taut. More specifically, a C5M type, 25mm wide, rubber-based low-temperature timing belt (operating temperature: -50℃~+80℃) can be selected to meet the application requirements.

[0033] like Figure 4 As shown, the crimping assembly includes a fixed plate and a pressure plate. The fixed plate in each crimping assembly is fixed to the corresponding base plate, telescopic plate and mounting plate. The top surface of the fixed plate has a groove, and the timing belt passes through the groove. The pressure plate is fixed to the top of the fixed plate by bolts and presses the timing belt to crimp and fix it.

[0034] like Figure 1 , Figure 2 As shown, the drive mechanism includes a motor and a lead screw and nut assembly mounted on the base plate. The lead screw in the lead screw and nut assembly is connected to the output shaft of the motor, and the nut in the lead screw and nut assembly is connected to the telescopic plate in the first-stage telescopic assembly. The motor drives the lead screw to rotate, causing the nut to move along the lead screw, which in turn drives the telescopic plate in the first-stage telescopic assembly to slide on the base plate. More specifically, the lead screw can be a C5 precision grade, made of stainless steel, with a diameter of φ20mm and a lead of 10mm, as the power transmission mechanism. The motor can be a low-temperature servo motor, thus ensuring a telescopic accuracy of ±0.02mm.

[0035] like Figure 2 , Figure 6 As shown, the bottom sides of the telescopic plate in the first-stage telescopic assembly are connected to the base plate by a cross roller guide pair. The cross roller guide pair includes a movable guide rail and a fixed guide rail arranged along the sliding direction of the telescopic plate. The fixed guide rail is located on the base plate, and the movable guide rail is fixed to the bottom of the telescopic plate in the first-stage telescopic assembly. The movable guide rail and the fixed guide rail are provided with V-grooves on opposite sides along the sliding direction of the telescopic plate. A retainer is provided on the movable guide rail along the V-groove. Multiple cross-arranged rollers are provided on the retainer along the length of the retainer. The rollers are connected to the V-grooves on the fixed guide rail by rolling.

[0036] When the drive mechanism moves the telescopic plate in the primary telescopic assembly, the rolling connection between the rollers and the V-groove synchronously drives the moving guide rail to slide along the fixed guide rail, thereby guiding the sliding of the telescopic plate through the cross roller guide pair. Because the effective contact length of the rollers is increased by 1.7 times compared to traditional sliding guide units, and because the roller pitch interval is shorter and the number of rollers is greater, the overall rigidity of the cross roller guide pair is increased by 2 times, achieving a 6-fold longer lifespan. It also features low rolling friction resistance, good stability, small elastic deformation, and ease of achieving high-rigidity, high-load motion, making the sliding of the telescopic plate more stable and reliable. Similarly, the telescopic plate in the secondary telescopic assembly can also be rolledly connected to the telescopic plate in the primary telescopic assembly through the cross roller guide pair.

[0037] like Figure 5 As shown, slide rails are fixed on both sides of the top surface of the telescopic plate in the secondary telescopic assembly along the sliding direction of the telescopic plate, and a slider that is slidably connected to the slide rail is fixed on the bottom surface of the mounting plate. The sliding of the mounting plate is guided by the sliding cooperation between the slider and the slide rail. Similarly, the telescopic plate can also be installed by the sliding cooperation between the slider and the slide rail, thereby realizing the sliding of the telescopic plate.

[0038] Based on the structure and working principle of the scanning carriage described above, this utility model can fold the scanning carriage when not in use and unfold it when in use through a linkage telescopic mechanism. This saves space occupied by the scanning carriage after folding and makes it easy to carry. It can also achieve a large scanning stroke in a small space, making the scanning carriage more suitable for more application scenarios and improving its practicality.

[0039] Finally, although embodiments of the present invention have been shown and described above, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A folding scanning frame for an RCS detector, characterized in that: It includes a base plate, a drive mechanism, a primary telescopic component, a secondary telescopic component, and a mounting plate. The primary telescopic component is slidably mounted on the base plate, the secondary telescopic component is slidably mounted on the primary telescopic component, and the mounting plate is slidably mounted on the secondary telescopic component. The drive mechanism is mounted on the base plate and is used to drive the primary telescopic component to slide. When the primary telescopic component slides, it drives the secondary telescopic component to slide in the same direction on the primary telescopic component. When the secondary telescopic component slides, it drives the mounting plate to slide in the same direction on the secondary telescopic component.

2. The folding scanning frame of the RCS detector according to claim 1, characterized in that: Both the primary and secondary telescopic components include a telescopic plate, a synchronous belt, pulleys, and a tensioning mechanism. The telescopic plate in the primary telescopic component is slidably mounted on the base plate, while the telescopic plate in the secondary telescopic component is slidably mounted on the top surface of the telescopic plate in the primary telescopic component. A mounting plate is slidably mounted on the top surface of the telescopic plate in the secondary telescopic component. Openings are provided at both ends of the telescopic plate along its sliding direction. A tensioning mechanism is located at each opening on the top surface of the telescopic plate, and pulleys are mounted on the tensioning mechanism. The synchronous belt is positioned along the sliding direction of the telescopic plate, with both ends passing through the two openings and wound around the two pulleys. The pulley located below the telescopic plate in the primary telescopic component is fixedly connected to the center of the base plate via a pressing assembly. The pulley located above the telescopic plate in the primary telescopic component is fixedly connected to the center of the telescopic plate in the secondary telescopic component via a pressing assembly. The pulley located below the telescopic plate in the secondary telescopic component is fixedly connected to the center of the telescopic plate in the primary telescopic component via a pressing assembly. The pulley located above the telescopic plate in the secondary telescopic component is fixedly connected to the center of the mounting plate via a pressing assembly.

3. The folding scanning frame of the RCS detector according to claim 2, characterized in that: The drive mechanism includes a motor and a lead screw and nut assembly mounted on the base plate. The lead screw in the lead screw and nut assembly is connected to the output shaft of the motor, and the nut in the lead screw and nut assembly is connected to the telescopic plate in the first-stage telescopic assembly.

4. The folding scanning frame of the RCS detector according to claim 1, characterized in that: In the primary telescopic assembly, the bottom sides of the telescopic plate are connected to the base plate by a cross roller guide pair. The cross roller guide pair includes a movable guide rail and a fixed guide rail arranged along the sliding direction of the telescopic plate. The fixed guide rail is located on the base plate, and the movable guide rail is fixed to the bottom of the telescopic plate in the primary telescopic assembly. The movable guide rail and the fixed guide rail are provided with V-grooves on opposite sides along the sliding direction of the telescopic plate. A retainer is provided on the movable guide rail along the V-groove, and multiple cross-arranged rollers are provided on the retainer along the length of the retainer. The rollers are connected to the V-grooves on the fixed guide rail by rolling.

5. The folding scanning frame of the RCS detector according to claim 2, characterized in that: The tensioning mechanism includes a slide, a fixed seat, and an adjusting bolt. A slide groove is provided at the opening of the telescopic plate along the sliding direction of the telescopic plate. The slide is slidably disposed in the slide groove. The pulley is disposed on the slide. The fixed seat is disposed in the slide groove at one end away from the synchronous belt. An adjusting bolt is threadedly connected to the fixed seat. The adjusting bolt passes through the fixed seat and is threadedly connected to the slide.

6. The folding scanning frame of the RCS detector according to claim 2, characterized in that: The crimping assembly includes a fixed plate and a pressure plate. The fixed plate is fixedly installed and has a groove on its top surface. The timing belt passes through the groove. The pressure plate is fixed to the top of the fixed plate with bolts and presses the timing belt.

7. The folding scanning frame of the RCS detector according to claim 2, characterized in that: The top surface of the telescopic plate in the secondary telescopic assembly is provided with slide rails on both sides along the sliding direction of the telescopic plate, and the bottom surface of the mounting plate is provided with a slider that is slidably connected to the slide rails.

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