CN106596599B - Safety detection system - Google Patents

Abstract

The invention provides a safety detection system, which includes a ray source, a detection frame and a drag device. A detection area is formed between the ray source and the detection frame. The drag device connects and drags the detection frame to move along a predetermined trajectory. It is characterized by: The detection frame includes a first upright column and a second upright column. The first upright column and the second upright column are respectively located on both sides of the detection area. The drag device includes a driving assembly, one or more sets of first transmission assemblies and one or more sets of first transmission assemblies. Two transmission components, one or more sets of first transmission components are correspondingly arranged and connected to the first column, one or more groups of second transmission components are correspondingly arranged and connected to the second column, all first transmission components are connected to all second transmission components The components are driven synchronously by the same driving component, so that the first upright column and the second upright column synchronously drive the detection frame to move from one end of the object to be tested to the other end. The system operates smoothly, has low vibration, and has high detection efficiency, effectively avoiding loud detection noise. Problems affecting detection imaging.

Description

Safety detection system

Technical field

The invention relates to the technical field of safety detection equipment, and in particular to a combined safety detection system.

Background technique

Due to the rapid development of radiation imaging technology for container trucks, container-type safety detection equipment has been widely used. According to different scanning methods, there are mainly fixed, combined and vehicle-mounted detection systems. The fixed detection system means that the radiation source device and the detector device are not moved, and the vehicle to be detected is dragged through the detection channel by a dragging device. Using this detection method, the quality of the system image obtained is good, but due to its low detection efficiency, The detection system takes up a lot of space, so its applicability is poor. The combined inspection system installs a radiation source device and a detector device on a gantry frame, and uses a dragging device to enable the gantry frame to reciprocate in a straight line around the vehicle to be inspected, completing the scanning and inspection of the truck to be inspected. Compared with the fixed type, the combined inspection system Instead of dragging 60-80 tons of vehicles to be inspected, we can drag less than 10 tons of inspection equipment. Two scan inspections can be performed through the reciprocating motion of the gantry frame. Therefore, the combined inspection system has high inspection efficiency and takes up little space.

In the prior art, the columns on both sides of the gantry frame of the combined inspection system are usually driven by different driving devices to slide along the track, so that the gantry frame can be moved to scan and inspect the vehicle to be inspected. Since the two columns are driven separately, when the sliding steel wheels at the bottom of the columns on both sides slide on the track, the wheel sets on both sides receive different resistances, which will cause the columns on both sides to move out of sync. In addition, The vibration between the wheel and the rail causes the acquired detection signal to be noisy, which affects the quality of the detection image and also easily damages the parts.

Contents of the invention

According to an embodiment of the present invention, a safety detection system is provided, which can solve the problem in the prior art that the columns on both sides of the detection frame cannot move synchronously in the combined safety detection system because the columns on both sides of the detection frame are driven by different motors. The detection frame vibrates on the track, causing the detection signal obtained from the detection frame to be noisy, which affects detection imaging.

According to one aspect of the present invention, a safety detection system is provided, including a ray source, a detection frame and a drag device. A detection area is formed between the ray source and the detection frame. The drag device connects and drags the The detection frame moves along a predetermined trajectory, and is characterized in that the detection frame includes a first upright column and a second upright column, and the first upright column and the second upright column are respectively located on both sides of the detection area; the drag The driving device includes a driving assembly, one or more sets of first transmission assemblies, and one or more sets of second transmission assemblies; wherein the one or more sets of first transmission assemblies are correspondingly arranged and connected to the first column, The one or more sets of second transmission components are correspondingly arranged and connected to the second column, and all the first transmission components and all the second transmission components are synchronously driven by the same driving component, so that the The first upright column and the second upright column synchronously drive the detection frame to move from one end of the object to be measured to the other end.

According to an aspect of the present invention, it also includes a transmission member connected to and driving the one or more sets of first rotating components on one side of the detection area, and connected and driving the one or more first rotating components on the other side of the detection area. One or more sets of second transmission assemblies, the transmission members are connected and driven by the driving assembly, so that all the first transmission assemblies and all the second transmission assemblies move synchronously.

According to one aspect of the invention, the drive assembly includes a motor, and the output shaft of the motor is connected to the transmission member.

According to an aspect of the present invention, the first transmission assembly and the second transmission assembly each include a synchronous toothed pulley and a synchronous toothed belt, and the synchronous toothed pulley drives the synchronous toothed belt along the Predetermined trajectory movement, the first upright column and the second upright column are respectively located on the corresponding synchronous toothed belt; the transmission member includes a transmission shaft, the synchronous toothed pulley of the first transmission component and the The synchronous toothed pulleys of the second transmission assembly are respectively connected to the transmission shaft, and the output shaft of the motor drives the synchronous toothed pulleys to rotate synchronously through the transmission shaft, so that the first column and the second The columns move synchronously along the predetermined trajectory.

According to an aspect of the present invention, the first transmission assembly and the second transmission assembly each include a support slider, and the first upright column and the second upright column are connected to the corresponding support slider through the corresponding support slider. on the synchronous toothed belt.

According to an aspect of the present invention, both the first transmission assembly and the second transmission assembly include installation rails, the installation rails are laid along the predetermined trajectory direction, and the support sliders are movably installed on the corresponding installation rails. track and move along the installation track.

According to one aspect of the present invention, the supporting slide block has a groove, and the mounting rail is provided with protrusions matching the groove.

According to an aspect of the present invention, the corresponding support sliders of the first transmission assembly and the second transmission assembly are provided with slider mounting plates, and the first upright column and the second upright column are respectively connected with the corresponding support sliders. The slider mounting plate is detachably connected.

According to one aspect of the present invention, the mounting rail is fixed on the rail mounting plate.

According to an aspect of the present invention, it also includes a third transmission component, the ray source is installed on the third transmission component, and the motor is connected to and drives the third transmission component and the The first transmission component and the second transmission component move synchronously.

According to an aspect of the present invention, the third transmission assembly includes the same component as the first transmission assembly and/or the second transmission assembly, and the transmission shaft of the transmission member is connected to and drives the third transmission assembly. The corresponding synchronous toothed pulleys make the first radiation source and the detection frame move synchronously along the installation track.

According to one aspect of the present invention, the transmission shaft includes a plurality of detachably connected shaft portions.

According to one aspect of the invention, a bearing assembly is further included, the bearing assembly supporting and rotating the transmission shaft.

According to one aspect of the present invention, the motor drives two groups of first transmission components and two groups of second transmission components simultaneously.

According to one aspect of the invention, an array detector is provided on the detection frame.

According to one aspect of the present invention, a second ray source is also installed on the detection frame, and the second ray source is arranged corresponding to the array detector.

To sum up, in the safety monitoring system of the present invention, the first upright column and the second upright column of the detection frame are respectively arranged on both sides of the detection area. The drag device includes a driving component, a first transmission component and a second transmission component. One or more One group of first transmission components is connected to and drives the first column, one or more groups of second transmission components is connected to and drives the second column, and all first transmission components and all second transmission components are connected and driven synchronously through the same driving component. The transmission assembly drives the first and second columns respectively installed on the first transmission assembly and the second transmission assembly to move synchronously, which enables the detection frame to run smoothly and effectively solves the problem of asynchronous movement of the columns on both sides of the detection frame. This leads to the problem that the acquired detection signal is noisy.

Description of the drawings

The present invention can be better understood from the following description of specific embodiments of the invention in conjunction with the accompanying drawings, in which:

Other features, objects and advantages of the present invention will become more apparent upon reading the following detailed description of non-limiting embodiments with reference to the accompanying drawings, wherein the same or similar reference numerals designate the same or similar features.

Figure 1 is a schematic diagram of the installation assembly of the safety detection system of the present invention;

Figure 2 is a schematic diagram of the view in direction A in Figure 1;

Figure 3 is a partial enlarged schematic diagram of the installation of the column and transmission assembly at position B in Figure 1 .

In the figure, 1: motor; 2: radiation source; 3: detector; 4: transmission shaft; 5: synchronous toothed pulley; 6: synchronous toothed belt; 7: supporting slider; 8: slider mounting plate; 9: Lane; 10: Installation track; 11: Track installation plate; 12: Detection frame; 121: First column; 122: Second column.

Detailed ways

Features and exemplary embodiments of various aspects of the invention are described in detail below. The detailed description of the following embodiments and the accompanying drawings are used to illustrate the principles of the present invention, but are not used to limit the scope of the present invention, that is, the present invention is not limited to the described preferred embodiments, and the scope of the present invention is defined by the claims. . In the drawings and the following description, at least some well-known structures and techniques are not shown in order to avoid unnecessarily obscuring the present invention. The same reference numerals in the drawings represent the same or similar structures, and thus their detailed descriptions will be omitted. Furthermore, the features, structures, or characteristics described below may be combined in any suitable manner in one or more embodiments.

Figures 1 and 2 schematically show the installation assembly of the safety detection system according to the embodiment of the present invention. The security detection system of the present invention is assembled into a security inspection equipment assembly, which can be used for reciprocating scanning and detection of fixed objects to be detected.

Referring to Figures 1 and 2, taking container truck safety detection equipment as an example, the safety detection system of the present invention includes a ray source 2, a detection frame 12 and a drag device. A detection area is formed between the ray source 2 and the detection frame 12, and the drag device The driving device connects and drags the detection frame 12 to move along a predetermined trajectory. The detection frame 12 includes a first column 121 and a second column 122. The first column 121 and the second column 122 are respectively located on both sides of the detection area. The drag device includes A driving assembly, one or more sets of first transmission assemblies and one or more sets of second transmission assemblies. One or more sets of first transmission assemblies are arranged and connected correspondingly to the first column 121. One or more sets of second transmission assemblies are provided. The components are arranged and connected correspondingly to the second column 122. All the first transmission components and all the second transmission components are synchronously driven by the same driving component, so that the first column 121 and the second column 122 synchronously drive the detection frame 12 to be tested. The truck moves from one end to the other. Among them, the ray source 2 is used to emit detection signals that pass through the object to be detected, and the detection frame 12 is equipped with a detector 3 corresponding to the ray source 2 for receiving the detection rays emitted from the ray source 2 and processing the detection signals. , sending out a feedback signal, thereby enabling safe detection of the truck to be detected.

During operation, the lane 9 is laid out according to the predetermined trajectory of the detection frame 12, the truck to be detected is parked on the lane 9, and the first column 121 and the second column 122 of the detection frame 12 are set up on both sides of the lane 9 respectively. One driving component synchronously drives all the transmission components corresponding to the first column 121 and the second column 122, and can synchronously drive the first column 121 and the second column 122, thereby driving the detection frame 12 to move steadily along the predetermined trajectory, so that the detection frame 12 can The stable detection signal is received, which effectively eliminates the problem in the prior art that the detection imaging is affected by the unsynchronized or inaccurate guidance of the columns on both sides of the detection frame 12 during its movement along the predetermined trajectory. Specifically, the driving assembly can be located at One side of the first transmission component or one side of the second transmission component can also be positioned between the two. As long as it can drive all the first transmission components and the second transmission components to move synchronously, the present invention can Within the scope of protection, the detection frame 12 adopts the structural form of a gantry. Specifically, the detection frame 12 can be integrally formed or separately assembled. The structural form of the frame can also be designed according to the actual detection situation, and the frame structure It can also be adjusted in height or width according to the specific object to be detected.

Therefore, the same driving component synchronously drives the transmission components on both sides of the detection area to drive the two columns (referring to 121 and 122, the same below) to move synchronously along the track, realizing the smooth operation of the detection frame 12, and to a large extent Vibration and operating noise are eliminated, thereby obtaining stable detection signals and detection imaging, and improving the accuracy of detection results.

In addition, the system also includes a transmission component, which is connected and drives one or more sets of first rotating components on one side of the detection area, and is connected and drives one or more sets of second transmission components on the other side of the detection area. The transmission component Connected and driven by the driving assembly, so that all first transmission assemblies and all second transmission assemblies move synchronously. Through this transmission assembly, the driving assembly can simultaneously drive all the first transmission assemblies and all the second transmission assemblies on both sides of the detection area, thereby driving the columns on both sides of the detection area to operate synchronously, thereby achieving the overall stability of the detection frame 12 run.

Among them, the driving component includes a motor 1, and the output shaft of the motor 1 is connected to the transmission component. Specifically, the corresponding type of motor can be selected according to actual needs. There is no limit here, as long as the motor 1 can drive all the first components in the system at the same time. The component and the second component can move synchronously.

Please refer to Figure 3 as well. Both the first transmission component and the second transmission component include a synchronous toothed pulley 5 and a synchronous toothed belt 6. The synchronous toothed pulley 5 drives the synchronous toothed belt 6 to move along a predetermined trajectory. The first upright column 121 and the second upright column 122 are respectively provided on corresponding synchronous toothed belts 6; wherein, the transmission member includes a transmission shaft 4, a synchronous toothed pulley 5 of the first transmission component and a synchronous toothed belt of the second transmission component. The pulleys 5 are respectively connected to the transmission shaft 4. The output shaft of the motor 1 drives the synchronous wheel 5 to rotate synchronously through the transmission shaft 4. The synchronous toothed belt 6 drives the first column 121 and the second column 122 to move synchronously along a predetermined trajectory. The toothed meshing transmission between the synchronous toothed pulley 5 and the synchronous toothed belt 6 replaces the wheel-rail transmission used in the existing security inspection equipment. The toothed meshing pulley transmission mode has the advantages of compact structure, high transmission efficiency and high transmission efficiency. The advantage of stability is that it eliminates the need for a sliding seat with a length of over 3 meters and a length of nearly 2 tons made of steel wheels, which not only reduces the load of the dragging device, but also reduces the floor space and greatly reduces the total cost of the security inspection equipment.

In addition, both the first transmission assembly and the second transmission assembly include support sliders 7 , and the first upright column 121 and the second upright column 122 are respectively connected to the corresponding synchronous toothed belt 6 through the corresponding support sliders 7 . The slider 7 plays the role of connection and fixation. The two columns are connected to the corresponding pulleys (referring to 5 and 6, the same below) at the bottom through the support slider 7, so that the columns are fixed relative to the pulleys. When the motor 1 drives the detection area When the synchronous toothed pulleys 5 and synchronous toothed belts 6 on both sides move synchronously, the two columns also move synchronously along the track with the corresponding pulleys, so that the detection frame 12 operates stably.

In addition, both the first transmission assembly and the second transmission assembly include installation rails 10 which are laid along the predetermined trajectory direction. The support slider 7 is movably installed on the corresponding installation rail 10 and moves along the installation rail 10 . The installation rail 10 is fixed relative to the ground, and a movable connection relationship is formed between the support slider 7 and the installation rail 10. On both sides of the detection area, the toothed belt 6 drives the support slider 7 to move relative to the installation rail 10, so that both sides can be realized. Synchronized and smooth movement of the columns.

Furthermore, the installation rail 10 is provided with a groove, and the support slider 7 has a protrusion that matches the groove. Through the movable connection relationship between the matching groove and the protrusion, the support slider 7 can move along the installation rail 10 The grooves enable reciprocating motion.

The corresponding support sliders 7 of the first transmission assembly and the second transmission assembly are provided with slider mounting plates 8, and the first upright column 121 and the second upright column 122 are detachably connected to the corresponding slider installation plates 8 respectively. The slider mounting plate 8 is located at the bottom of each column. The column forms a fixed structural relationship with the support slider 7 through the slider installation plate 8, which facilitates installation and disassembly. When the support slider 7 reciprocates relative to the installation rail 10, That is to say, the two columns reciprocate relative to the installation rail 10 .

At the same time, the mounting rail 10 is fixed on the rail mounting plate 11 . In the specific implementation, due to the different softness of the soil in the installation environment, it is necessary to install a track mounting plate 11, and install the mounting track 10 on the ground through the track mounting plate 11, so that the mounting track 10 can be kept in a horizontal and straight state, further enabling detection Frame 12 runs smoothly.

In addition, it also includes a third transmission component. The first ray source 2 is installed on the third transmission component. The motor 1 is connected through the transmission shaft 4 of the transmission component and drives the third transmission component to move synchronously with the first transmission component and the second transmission component. . The radiation source 2 is installed on the third transmission component. The motor 1 connects and drives all the first transmission component, the second transmission component and the third transmission component through the transmission shaft 4, so that the radiation source 2 and the detection frame 12 move synchronously and smoothly. .

The third transmission assembly includes the same components as the first transmission assembly and/or the second transmission assembly. The transmission shaft 4 of the transmission assembly is connected to and drives the corresponding synchronous toothed pulley 5 of the third transmission assembly, so that the first radiation source 2 is connected to the first transmission assembly. The detection frame 12 moves synchronously along the installation track 10 . The third transmission assembly for mounting the first radiation source 2 has the same structure as the first transmission assembly and/or the second transmission assembly for mounting the two columns, which is more conducive to achieving synchronous operation of the radiation source 2 and the detection frame 12 . At the same time, it facilitates batch processing, manufacturing and installation, reducing production costs.

The transmission shaft 4 includes multiple sections of detachably connected shaft body parts, and the safety detection system also includes a bearing assembly, which supports and allows the transmission shaft 4 to rotate. According to the needs of the testing equipment, the transmission shaft 4 is configured as a multi-section detachably connected shaft body for easy installation and disassembly, and also prevents excessive torque from affecting the transmission effect due to the transmission shaft 4 being too long.

The detection frame 12 is provided with an array detector 3, which can be used to receive signals and store and process signal data. Furthermore, the second ray source 2 is installed on the detection frame 12 so as to be arranged corresponding to the array detector 3 . Specifically, the second ray source 2 and the array detector 3 on the detection frame 12 can form the detection frame 12. When the detection frame 12 reciprocates along the track relative to the truck to be inspected, scanning detection of the truck to be inspected is realized. , the ray source 2 and the array detector 3 are set on the detection frame 12 at the same time. As long as the detection frame 12 moves, the synchronous operation of the ray source 2 and the array detector 3 can be realized, which can make the detection area more stable. At the same time, combined with the first ray Source 2 constitutes a multi-ray source security inspection equipment, which can further improve the efficiency of security inspection.

It should be noted that the preferred solution of this embodiment is that the motor 1 is connected to and drives 2 sets of first transmission components and 2 sets of second rotation components to move synchronously in the safety detection system, where the 2 sets of first transmission components are located in the detection area. One side of the detection area drives the first column to run, and two sets of second transmission components are located on the other side of the detection area to drive the second column to run. The transmission efficiency of the first transmission assembly and the second transmission assembly in two groups is the best, taking into account the smooth operation and cost economy.

In summary, in the safety monitoring system of the present invention, the same motor 1 drives all the transmission components on both sides of the detection area to operate synchronously and drives the columns (121 and 122) on both sides to operate synchronously, so that the radiation source 2 and the detector 3 The formed inspection area can perform a smooth reciprocating scanning inspection relative to the truck to be inspected, effectively solving the problems of inaccurate guidance and high noise caused by the columns on both sides of the inspection frame 12 being driven by different motors, and improving the inspection imaging quality. , further improving the accuracy of the detection results; at the same time, the system of the present invention has a compact structure and adopts the transmission mode of synchronous toothed pulley 5 and synchronous toothed belt 6, which has high transmission efficiency and reduces the weight of the drag device, reducing the It saves floor space and has a wide range of applications.

The present invention may be implemented in other specific forms without departing from its spirit and essential characteristics. The present embodiments are therefore to be considered in all respects as illustrative rather than restrictive, and the scope of the invention is defined by the appended claims rather than the foregoing description, and everything within the meaning and equivalents of the claims is All changes within the scope are therefore included in the scope of the invention. Moreover, different technical features appearing in different embodiments can be combined to achieve beneficial effects. Those skilled in the art should be able to understand and implement other modified embodiments of the disclosed embodiments based on studying the drawings, description and claims.

Claims (9)

1. A safety detection system comprises a ray source, a detection frame and a dragging device, wherein a detection area is formed between the ray source and the detection frame, the dragging device is connected with and drags the detection frame to move along a preset track,

the detection frame comprises a first upright post and a second upright post, and the first upright post and the second upright post are respectively arranged at two sides of the detection area;

the dragging device comprises a driving assembly, one or more groups of first transmission assemblies and one or more groups of second transmission assemblies;

the one or more groups of first transmission assemblies are correspondingly arranged and connected with the first upright post, the one or more groups of second transmission assemblies are correspondingly arranged and connected with the second upright post, and all the first transmission assemblies and all the second transmission assemblies are synchronously driven by the same driving assembly, so that the first upright post and the second upright post synchronously drive the detection frame to move from one end to the other end of an object to be detected;

the device further comprises a transmission component, wherein one side of the detection area is connected with and drives one or more groups of first rotating assemblies, the other side of the detection area is connected with and drives one or more groups of second transmission assemblies, and the transmission component is connected with and driven by the driving assembly so as to enable all the first transmission assemblies and all the second transmission assemblies to synchronously move;

the driving assembly comprises a motor, and an output shaft of the motor is connected with the transmission member;

the first transmission assembly and the second transmission assembly both comprise synchronous toothed pulleys and synchronous toothed belts, the synchronous toothed pulleys drive the synchronous toothed belts to move along the preset track, and the first upright posts and the second upright posts are respectively arranged on the corresponding synchronous toothed belts;

the transmission member comprises a transmission shaft, the synchronous toothed belt wheel of the first transmission assembly and the synchronous toothed belt wheel of the second transmission assembly are respectively connected with the transmission shaft, and an output shaft of the motor drives the synchronous toothed belt wheel to synchronously rotate through the transmission shaft so that the first upright post and the second upright post synchronously move along the preset track;

the first transmission assembly and the second transmission assembly comprise supporting sliding blocks, and the first upright post and the second upright post are respectively connected to the corresponding synchronous toothed belt through the corresponding supporting sliding blocks;

the transmission shaft comprises a plurality of sections of detachably connected shaft body parts;

the device also comprises a bearing assembly, wherein the bearing assembly supports and enables the transmission shaft to rotate;

and an array detector is arranged on the detection frame.

2. The safety inspection system of claim 1, wherein the first and second drive assemblies each include a mounting rail, the mounting rails being routed along the predetermined trajectory, the support blocks being movably mounted on and moving along the respective mounting rails.

3. The safety inspection system of claim 2 wherein the support slide has a recess and the mounting rail has a protrusion thereon that mates with the recess.

4. A safety inspection system according to claim 3, wherein the respective support sliders of the first and second drive assemblies are provided with slider mounting plates, and the first and second posts are detachably connected to the respective slider mounting plates.

5. The safety inspection system of claim 4, wherein the mounting rail is fixedly secured to the rail mounting plate.

6. The safety inspection system of claim 5, further comprising a third drive assembly having the first radiation source mounted thereon, the motor being coupled to and driving the third drive assembly through the drive shaft of the drive member in synchronous motion with the first and second drive assemblies.

7. The safety inspection system of claim 6, wherein the third drive assembly includes the same components as the first drive assembly and/or the second drive assembly, a drive shaft of the drive components being connected to and driving respective synchronized toothed pulleys of the third drive assembly to synchronize movement of the first radiation source and the inspection frame along the mounting track.

8. The safety inspection system of any one of claims 1-7 wherein the motor drives both sets of the first transmission assembly and both sets of the second transmission assembly simultaneously.

9. The safety inspection system of claim 1 wherein a second radiation source is also mounted on the inspection frame, the second radiation source being positioned in correspondence with the array detector.