Performance detection tool for high-speed intelligent security inspection machine

Abstract

The utility model discloses a performance detection tool for a high-speed intelligent security inspection machine. The performance detection tool comprises an adjustable supporting mechanism, an adjustable rotating mechanism, a motor and transmission device, an extensible guide rail mechanism, a belt wheel and tensioning device, a transmission platform and an electric control cabinet, the electric control cabinet is in control connection with the motor and the transmission device. A synchronous belt transmission mode is used, the synchronous belt transmission mode has the advantages of being high in transmission efficiency and stable in transmission, the distance used for acceleration and deceleration in the transmission process can be effectively shortened, the overall size of the device is further shortened, and the device is suitable for more use scenes and convenient to load, unload and transport. The part, entering the security inspection machine channel, of the detection tool is made of a non-metal material, so that X-ray recognition in the security inspection machine cannot be influenced. The detection tool provided by the utility model can test the identification performance of the security inspection machine under the condition that the X-ray identification effect of the security inspection machine is not influenced, can meet the detection use requirements of various types of security inspection machines, and is stable in structure and accurate and controllable in operation process.

Description

Technical Field

[0001] This utility model relates to the field of security inspection equipment technology, specifically to a performance testing fixture for a high-speed intelligent security inspection machine. Background Technology

[0002] Current security screening machines use rolling conveyor belts as their transmission devices, which cannot effectively brake the objects placed on them. When the conveyor speed is high, the objects cannot be stopped in time after passing through the machine, which can easily cause the objects to fly off the conveyor belt or be damaged. To avoid the problem of objects not being able to be stopped in time, some security screening machines have begun to use transmission devices that can control the acceleration and deceleration of the objects being inspected, such as lead screw drives or chain drives.

[0003] While lead screw or chain drives can effectively solve the problem of acceleration and deceleration of detected objects, this technology also has significant shortcomings. First, lead screw drives involve longer acceleration and deceleration distances, increasing the overall size of the equipment and making it less flexible to use. Chain drives suffer from poor operational stability, making it impossible to pass through the scanning section of the security inspection machine at a uniform speed, thus affecting the equipment's recognition performance. Second, both lead screws and chains are made of metal, which can interfere with X-ray recognition results when passing through the scanning section of the security inspection machine, affecting the accuracy of recognition. Utility Model Content

[0004] In view of the shortcomings of the existing technology, this utility model aims to provide a performance testing fixture for a high-speed intelligent security inspection machine.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A performance testing fixture for a high-speed intelligent security inspection machine includes an adjustable support mechanism, an adjustable rotation mechanism, a motor and transmission device, an expandable guide rail mechanism, a transmission platform, and an electrical control cabinet; the electrical control cabinet is connected to the motor and transmission device.

[0007] The adjustable support mechanism includes a bracket and a crossbeam with adjustable height;

[0008] A crossbeam is provided between the two front legs and between the two rear legs of the bracket. Each crossbeam can move up and down along the two legs it is connected to and be fixed at any height.

[0009] Both sides of the bracket are equipped with adjustable rotation mechanisms, each including a steering wheel, a shaft support, a shaft, an angle scale, an angle lock, a rotation angle pointer, a load-enhancing bracket, and a guide rail support platform. The load-enhancing bracket and the rotation angle pointer are both mounted on the guide rail support platform. The steering wheel is connected to the guide rail support platform via the shaft, which is rotatably located within the shaft support. The angle scale is fixed to the shaft support. The shaft support is mounted on the front crossbeam of the adjustable support mechanism, and the load-enhancing bracket is connected to the rear crossbeam of the adjustable support mechanism via a movable pin. The rotation angle pointer and the angle scale can be locked using the angle lock.

[0010] The motor and transmission device includes a servo motor, a reduction mechanism, a synchronous belt, a drive pulley, and a driven pulley; on one side of the adjustable rotating mechanism, the servo motor and the reduction mechanism are fixed to the guide rail support platform by a motor fixing bracket and a reduction mechanism fixing bracket, respectively; the drive pulley is connected to the servo motor through the reduction mechanism, and the two ends of the synchronous belt are respectively wound around the drive pulley and the driven pulley;

[0011] The expandable guide rail mechanism includes a segmented carbon fiber composite guide rail; the segmented carbon fiber composite guide rail includes a long carbon fiber composite tube and two short carbon fiber composite tubes. The two short carbon fiber composite tubes are respectively fixed to the guide rail support platform of the adjustable rotating mechanism on both sides by guide rail fixing brackets. The two ends of the long carbon fiber composite tube are respectively connected to the two short carbon fiber composite tubes. The short carbon fiber composite tubes are marked with the start position, end position and middle position of the uniform speed transmission section.

[0012] The transmission platform comprises a cargo tray, composite material bolts, ceramic bearings, composite material pulleys, composite material timing belt pressure plates, composite material anti-collision baffles, and non-metallic binding straps. The cargo tray has fixing holes. The composite material pulleys have ceramic bearings inside, and the composite material pulleys are rotatably connected to the lower end of the composite material bolts through the ceramic bearings. The upper end of the composite material bolts is connected to the bottom of the cargo trays. The cargo trays are placed on a long carbon fiber composite tube, and the composite material pulleys can slide on the long carbon fiber composite tube. The composite material pulleys are connected to a timing belt through a composite material timing belt pressure plate, and are driven by the timing belt to move on the long carbon fiber composite tube.

[0013] Furthermore, the adjustable support mechanism also includes suction cup feet, and each leg of the bracket is provided with suction cup feet at its bottom.

[0014] Furthermore, each leg of the bracket has a vertically extending groove on its inner side, and each end of each crossbeam is equipped with a slider with bolts. The slider can be slidably assembled into the groove of the corresponding leg and can be fixed at any position on the leg by tightening the bolts.

[0015] Furthermore, the cargo tray is made of POM plastic material.

[0016] Furthermore, the bracket is made of aluminum alloy profile.

[0017] Furthermore, a pulley and tensioning device are provided on the adjustable rotating mechanism on the other side. The pulley and tensioning device include a mechanical tensioning device. The driven wheel is connected to the mechanical tensioning device, which is mounted on the guide rail support platform of the adjustable rotating mechanism on the other side. The driven wheel is rotatably connected to the mechanical tensioning device, and the mechanical tensioning device is used to adjust the driven wheel to move back and forth along the direction of the synchronous belt.

[0018] Furthermore, the expandable guide rail mechanism also includes a deceleration damper, which is mounted on the guide rail fixing bracket.

[0019] The beneficial effects of this invention are as follows: This invention uses a synchronous belt drive, and the part entering the security inspection machine channel is made of non-metallic material. Synchronous belt drive features high transmission efficiency and stable transmission, effectively shortening the distance used for acceleration and deceleration during transmission, thereby reducing the overall size of the equipment, making it suitable for more application scenarios, and facilitating loading, unloading, and transportation. The non-metallic material of the part entering the security inspection machine channel will not affect the X-ray recognition within the machine. The detection fixture of this invention can only test the recognition performance of the security inspection machine without affecting its X-ray recognition effect, meeting the detection needs of various models of security inspection machines. It has a stable structure and precise, controllable operation. Attached Figure Description

[0020] Figure 1 This is a front view of the detection tooling in an embodiment of the present utility model;

[0021] Figure 2 This is a side view of the detection fixture in an embodiment of the present utility model;

[0022] Figure 3 This is a top view of the detection fixture in an embodiment of this utility model;

[0023] Figure 4 This is a detailed structural diagram of the adjustable support mechanism in an embodiment of the present utility model;

[0024] Figure 5 This is a detailed structural diagram of the adjustable rotation mechanism in an embodiment of the present invention;

[0025] Figure 6 This is a detailed structural diagram of the expandable guide rail mechanism in an embodiment of this utility model;

[0026] Figure 7 This is a schematic diagram showing the detailed structure of the transmission platform in an embodiment of this utility model. Detailed Implementation

[0027] The present invention will be further described below with reference to the accompanying drawings. It should be noted that this embodiment is based on the present technical solution and provides detailed implementation methods and specific operation processes, but the protection scope of the present invention is not limited to this embodiment.

[0028] This embodiment provides a performance testing fixture for a high-speed intelligent security inspection machine, such as... Figure 1-3 As shown, it includes an adjustable support mechanism 101, an adjustable rotation mechanism 107, a motor and transmission device 102, an expandable guide rail mechanism 103, a pulley and tensioning device 104, a transmission platform 105, and an electrical control cabinet 106.

[0029] In this embodiment, the total length of the inspection fixture is 6553mm, the maximum width is 1605mm, the maximum height is 1493mm, and the maximum width for entering the security inspection machine channel is 450mm.

[0030] like Figure 4 As shown, the adjustable support mechanism includes a suction cup foot 1, an aluminum alloy profile bracket 2, and a height-adjustable crossbeam 3.

[0031] Each of the legs 21 of the aluminum alloy profile bracket 2 is equipped with a suction cup foot 1 at its bottom. The suction cup foot 1 is used to strengthen the stability of the aluminum alloy profile bracket when it is supported on the ground, and to prevent the equipment from being damaged due to excessive inertia caused by high load and high speed movement.

[0032] A crossbeam 3 is provided between the two front legs 21 of the aluminum alloy profile bracket 2 and between the two rear legs 21 of the aluminum alloy profile bracket 2. Each crossbeam 3 can move up and down along the two legs 21 it is connected to and be fixed at any height.

[0033] More specifically, each leg 21 of the aluminum alloy profile bracket 2 has a vertically extending groove 22 on its inner side. Each end of the crossbeam 3 is equipped with a bolted slider 4. The slider 4 is slidably fitted into the groove 22 of the corresponding leg 21 and can be fixed to any position on the leg 21 by tightening the bolts. When the bolts are loosened, the crossbeam can slide up and down along the groove using the sliders. To fix the crossbeam in a certain position, the bolts are tightened, securing the bolts to the leg and thus fixing the slider and the bracket together. The height adjustment range of the crossbeam is 30cm-120cm from the ground.

[0034] like Figure 5As shown, adjustable rotating mechanisms are provided on both sides of the support frame. These mechanisms include a steering wheel 5, a shaft support 10, a shaft, an angle scale 6, an angle lock, a rotation angle pointer 7, a load-enhancing support 8, and a guide rail support platform 9. The load-enhancing support 8 and the rotation angle pointer 7 are both mounted on the guide rail support platform 9. The steering wheel 5 is connected to the guide rail support platform 9 via the shaft, which is rotatably located within the shaft support 10. The angle scale 6 is fixed to the shaft support 10. The shaft support 10 is mounted on the front crossbeam of the adjustable support mechanism, and the load-enhancing support 8 is connected to the rear crossbeam of the adjustable support mechanism via a movable pin. The rotation angle pointer 7 and the angle scale 6 can be locked using the angle lock. In this embodiment, the angle lock is positioned by a bolt. In use, open the angle lock and slowly rotate the steering wheel 5. The guide rail support platform 9 rotates accordingly via the rotating shaft, and the rotation angle pointer 7 also rotates accordingly. When it moves to the specified scale on the angle scale 6, lock the angle lock to complete the angle adjustment of the motor and transmission device 102. The adjustable rotation mechanism can achieve any angle adjustment between -90° and 45°. The main purpose of the load-bearing support is to strengthen and reinforce the motor and transmission device 102 under high-intensity, high-load, and long-term operation scenarios, preventing equipment deformation and damage.

[0035] The motor and transmission device includes a servo motor, a reduction mechanism, a synchronous belt 11, a driving pulley, and a driven pulley 12. On one side of the adjustable rotating mechanism, the servo motor and the reduction mechanism are fixed to the guide rail support platform 9 via motor mounting brackets and reduction mechanism mounting brackets, respectively. The driving pulley is connected to the servo motor via the reduction mechanism, and the two ends of the synchronous belt 11 are wound around the driving pulley and the driven pulley 12, respectively. The servo motor provides power, and the reduction mechanism converts the power of the servo motor into power suitable for the synchronous belt 11 according to the designed transmission ratio. When the angle of the guide rail support platform changes, the servo motor and the reduction mechanism change accordingly. The synchronous belt transmits the power of the servo motor to the transmission platform, driving the transmission platform to accelerate, decelerate, and move at a constant speed.

[0036] like Figure 6As shown, the expandable guide rail mechanism includes a segmented carbon fiber composite guide rail, a handle tray 15, and a deceleration damper 16. The segmented carbon fiber composite guide rail includes a long carbon fiber composite tube 13 and two short carbon fiber composite tubes 14. The two short carbon fiber composite tubes 14 are fixed to the guide rail support platforms 9 of the adjustable rotating mechanism on both sides by guide rail fixing brackets. The two ends of the long carbon fiber composite tube 13 are connected to the two short carbon fiber composite tubes 14 by the handle tray 15. The short carbon fiber composite tubes 14 are the parts that pass through the security inspection machine channel. The short carbon fiber composite tubes 14 are marked with the start position, end position, and middle position of the uniform speed conveying section. During use, the marking of the middle position of the uniform speed conveying section needs to be aligned with the position of the X-ray scanning section inside the security inspection machine channel. The deceleration damper 16 is installed on the guide rail fixing bracket. Under high load and high speed operation scenarios, when the design inertia is exceeded and the deceleration distance is too short, it is used for passive braking, which can effectively prevent equipment damage and other dangerous situations outside the design scenario.

[0037] The pulley and tensioning device include a mechanical tensioning device 17; the driven pulley 12 is connected to the mechanical tensioning device 17, which is mounted on the guide rail support platform 9 of the adjustable rotating mechanism on the other side. The driven pulley 12 is rotatably connected to the mechanical tensioning device 17, and the mechanical tensioning device 17 is used to adjust the forward and backward movement of the driven pulley 12 along the direction of the synchronous belt 11. The mechanical tensioning device can adjust the forward and backward position of the driven pulley on the guide rail support platform, thereby adjusting the tension of the synchronous belt to keep it in the optimal transmission state.

[0038] like Figure 7 As shown, the transmission platform comprises a loading tray 18, a composite material bolt 19, a ceramic bearing, a composite material pulley 20, a composite material synchronous belt pressure plate 23, a composite material anti-collision baffle 24, and non-metallic strapping. The loading tray 18 is made of POM plastic and has fixing holes for fixing the test object with non-metallic strapping. The composite material pulley 20 has a ceramic bearing inside and is rotatably connected to the lower end of the composite material bolt 19 via the ceramic bearing. The upper end of the composite material bolt 19 is connected to the bottom of the loading tray 6. The loading tray 18 is placed on a carbon fiber composite long tube 13, and the composite material pulley 20 can slide on the carbon fiber composite long tube 13. The composite material pulley 20 is connected to the synchronous belt 11 via the composite material synchronous belt pressure plate 23, and is driven by the synchronous belt 11 to move on the carbon fiber composite long tube 13.

[0039] The electrical control cabinet consists of a cabinet body, cabinet door, touch screen LCD, button panel, servo motor driver, PLC host, power controller, relays, braking resistor, circuit breaker, terminals, etc. The main function of the electrical control cabinet is to control the testing fixture to automatically complete the entire process of acceleration, constant speed, deceleration, and then returning the tested object to its starting position after stopping, according to a given testing speed.

[0040] The testing fixture of this embodiment was tested. A standard test object was accelerated to 3.5 m / s by a synchronous belt and then passed at a constant speed through the security inspection equipment for security performance testing. The distance of the constant speed movement was 1 m. After the standard test object exited the security inspection machine, its speed was decelerated to a standstill by a servo motor. The results showed that the servo motor control of the acceleration, constant speed (detection), and deceleration of the test object was convenient; the acceleration and deceleration distances of the inspection equipment were short, and the overall length of the equipment was less than 7 m; the testing system was easy to install, disassemble, and transport. The testing fixture of this embodiment can only test the recognition performance of the security inspection machine without affecting its X-ray recognition effect. It can meet the detection needs of various models of security inspection machines, has a stable structure, and the operation process is precise and controllable.

[0041] For those skilled in the art, various corresponding changes and modifications can be made based on the above technical solutions and concepts, and all such changes and modifications should be included within the protection scope of the claims of this utility model.

Claims

1. A performance testing fixture for a high-speed intelligent security inspection machine, characterized in that, It includes an adjustable support mechanism, an adjustable rotation mechanism, a motor and transmission device, an expandable guide rail mechanism, a transmission platform, and an electrical control cabinet; the electrical control cabinet is connected to the motor and transmission device. The adjustable support mechanism includes a bracket and a crossbeam with adjustable height; A crossbeam is provided between the two front legs and between the two rear legs of the bracket. Each crossbeam can move up and down along the two legs it is connected to and be fixed at any height. Both sides of the bracket are equipped with adjustable rotation mechanisms, each including a steering wheel, a shaft support, a shaft, an angle scale, an angle lock, a rotation angle pointer, a load-enhancing bracket, and a guide rail support platform. The load-enhancing bracket and the rotation angle pointer are both mounted on the guide rail support platform. The steering wheel is connected to the guide rail support platform via the shaft, which is rotatably located within the shaft support. The angle scale is fixed to the shaft support. The shaft support is mounted on the front crossbeam of the adjustable support mechanism, and the load-enhancing bracket is connected to the rear crossbeam of the adjustable support mechanism via a movable pin. The rotation angle pointer and the angle scale can be locked using the angle lock. The motor and transmission device includes a servo motor, a reduction mechanism, a synchronous belt, a drive pulley, and a driven pulley; on one side of the adjustable rotating mechanism, the servo motor and the reduction mechanism are fixed to the guide rail support platform by a motor fixing bracket and a reduction mechanism fixing bracket, respectively; the drive pulley is connected to the servo motor through the reduction mechanism, and the two ends of the synchronous belt are respectively wound around the drive pulley and the driven pulley; The expandable guide rail mechanism includes a segmented carbon fiber composite guide rail; the segmented carbon fiber composite guide rail includes a long carbon fiber composite tube and two short carbon fiber composite tubes. The two short carbon fiber composite tubes are respectively fixed to the guide rail support platform of the adjustable rotating mechanism on both sides by guide rail fixing brackets. The two ends of the long carbon fiber composite tube are respectively connected to the two short carbon fiber composite tubes. The short carbon fiber composite tubes are marked with the start position, end position and middle position of the uniform speed transmission section. The transmission platform comprises a cargo tray, composite material bolts, ceramic bearings, composite material pulleys, composite material timing belt pressure plates, composite material anti-collision baffles, and non-metallic binding straps. The cargo tray has fixing holes. The composite material pulleys have ceramic bearings inside, and the composite material pulleys are rotatably connected to the lower end of the composite material bolts through the ceramic bearings. The upper end of the composite material bolts is connected to the bottom of the cargo trays. The cargo trays are placed on a long carbon fiber composite tube, and the composite material pulleys can slide on the long carbon fiber composite tube. The composite material pulleys are connected to a timing belt through a composite material timing belt pressure plate, and are driven by the timing belt to move on the long carbon fiber composite tube.

2. The testing fixture according to claim 1, characterized in that, The adjustable support mechanism also includes suction cup feet, and each leg of the bracket is provided with suction cup feet at its bottom.

3. The testing fixture according to claim 1, characterized in that, Each leg of the bracket has a vertically extending groove on its inner side, and each end of each crossbeam is equipped with a slider with bolts. The slider can be slidably fitted into the groove of the corresponding leg and can be fixed to any position on the leg by tightening the bolts.

4. The testing fixture according to claim 1, characterized in that, The cargo tray is made of POM plastic material.

5. The testing fixture according to claim 1, characterized in that, The bracket is made of aluminum alloy profile.

6. The testing fixture according to claim 1, characterized in that, A pulley and tensioning device are provided on the adjustable rotating mechanism on the other side. The pulley and tensioning device include a mechanical tensioning device. The driven wheel is connected to the mechanical tensioning device, which is mounted on the guide rail support platform of the adjustable rotating mechanism on the other side. The driven wheel is rotatably connected to the mechanical tensioning device, and the mechanical tensioning device is used to adjust the driven wheel to move back and forth along the direction of the synchronous belt.

7. The testing fixture according to claim 1, characterized in that, The expandable guide rail mechanism also includes a deceleration damper, which is mounted on the guide rail fixing bracket.

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