CN1920542B - A single pendulum device used in imaging experiments for detecting high-speed moving objects - Google Patents

Abstract

The utility model relates to a single pendulum type device used for detecting imaging experiments of high-speed moving objects, and relates to the technical field of radiation imaging detection. The invention includes a traction mechanism, a track truss, a locking mechanism and a cargo trolley. Its structural feature is that the track truss is in the form of a grooved arc segment structure supported by a frame-shaped bracket matching its shape. The bottom surface of the groove of the track truss is a horizontal section, and arc sections are extended along both sides of the horizontal section of the groove of the track truss. The traction mechanism is installed on one side of the top surface of the arc section of the track truss, and the traction mechanism is connected to the cargo trolley that is placed on the track truss and can carry test blocks. The arc section of the track truss on one side of the traction mechanism is provided with the locking mechanism that can lock or release the cargo trolley. Compared with the prior art, the present invention has the advantages of small occupied area, low equipment investment cost, convenient detection experiment and better simulation degree.

Description

A single pendulum device used in imaging experiments for detecting high-speed moving objects

technical field

The invention relates to the technical field of radiation imaging detection, in particular to a single pendulum device used for detection and imaging experiments of high-speed moving objects.

Background technique

Countries around the world are paying more and more attention to safety inspections. For vehicles such as trains in operation, inspection equipment is required to be able to complete the inspections conveniently and accurately at high speeds. In order to obtain better image quality in the high-speed imaging process, it is necessary to continuously adjust the detection equipment and obtain relevant data through radiation imaging experiments on fast-moving objects. During the experiment, the object to be tested needs to reach a higher speed. If the linear horizontal acceleration method in the prior art is adopted, in order to obtain a higher acceleration, the acceleration power equipment is required to have a large output power. The existing problem is that the acceleration power The equipment is not only huge, but also expensive; if the requirement for acceleration is lowered, it is necessary to provide a long acceleration and deceleration channel for the object to be tested, so that the area occupied by the experiment will be large. If the vertical drop acceleration method is adopted, the acceleration process is too short and the speed changes too fast, and it is difficult to obtain an ideal stable inspection speed of the inspected object.

Contents of the invention

In order to solve the above-mentioned problems in the prior art, the object of the present invention is to provide a single pendulum device for detecting and imaging experiments of high-speed moving objects. It can use the gravity of the object to be inspected to obtain a large acceleration in a short time and maintain a constant speed through the inspection area. It not only occupies a small area, but also has low cost.

In order to realize the above-mentioned purpose of the invention, the technical solution of the present invention is realized in the following manner:

The utility model relates to a single pendulum device for detecting and imaging experiments of high-speed moving objects, which includes a traction mechanism, a track truss, a locking mechanism and a cargo trolley. Its structural feature is that the track truss is formed into a groove-shaped arc section structure and supported by a frame-shaped bracket matching its shape. The bottom surface of the groove of the track truss is a horizontal section, and arc sections are extended along both sides of the horizontal section of the groove of the track truss. The traction mechanism is installed on one side of the top surface of the arc section of the track truss, and the traction mechanism is connected with the described cargo trolley that is placed on the track truss and can carry test blocks. The arc section of the track truss on one side of the traction mechanism is provided with the locking mechanism that can lock or release the cargo trolley. The locking mechanism includes a drive motor, a push rod and a connecting rod. The output end of the drive motor is provided with a cam and a limit sensor used in conjunction with the cam, and the cam is hinged to the push rod. The push rod is hinged with the bottom end of the connecting rod and the shank-shaped baffle provided at the bottom end of the connecting rod, and the connecting rod is hinged with a plurality of shank-shaped baffles according to the set distance in addition. Each handle-shaped baffle is provided with a fixed rotating shaft, and each fixed rotating shaft is respectively hinged with the support seat plate, and each support seat plate is fixed on the frame support according to the different heights formed by the arc section of the track truss. When the driving motor starts, the displacement distance of the push rod is controlled by the limit sensor, and the connecting rod is driven to make each handle-shaped baffle plate form a synchronous angular displacement around each fixed rotating shaft.

In the above-mentioned single pendulum device, two handle-shaped baffles are hinged on the connecting rod, which are placed at the top and middle of the connecting rod.

Due to the adoption of the above-mentioned structure, the present invention can obtain a relatively large acceleration in a short time by using the gravity of the cargo trolley and the test block, and keep the object under inspection when passing through the horizontal section detection area on the bottom surface of the track truss groove. The high constant speed provides a good detection environment for the imaging of detection equipment. A plurality of locking mechanisms can make the present invention provide different test speeds for the detection equipment according to needs. The cargo trolley reciprocates in the track truss, which shortens the acceleration and deceleration process and saves the occupied area. Compared with the prior art, the present invention has the advantages of small occupied area, low equipment investment cost, convenient detection experiment and better simulation degree.

The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

Description of drawings

Fig. 1 is a structural representation and a use status diagram of the present invention;

Fig. 2 is a schematic structural view of the locking mechanism of the present invention in a locked state;

Fig. 3 is a schematic diagram of the structure in direction A of Fig. 2;

Fig. 4 is a structural schematic diagram of the locking mechanism of the present invention in a released state.

Detailed ways

Referring to FIGS. 1 to 4 , the present invention includes a traction mechanism 15 , a track truss 11 , a locking mechanism 13 and a cargo trolley 14 . The track truss 11 has a groove-shaped arc section structure supported by a frame-type bracket 12 matching its shape. The bottom surface of the track truss 11 groove is a horizontal section, and arc sections extend along both sides of the horizontal section of the track truss 11 groove. The traction mechanism 15 is installed on one side of the top surface of the track truss 11 arc section, and the traction mechanism 15 is connected with the described cargo trolley 14 placed on the track truss 11 and capable of carrying test blocks. The arc section of the track truss 11 on one side of the traction mechanism 15 is provided with the locking mechanism 13 that can lock or release the cargo trolley 14 . The locking mechanism 13 includes a drive motor 6 , a push rod 8 and a connecting rod 2 . The output end of the driving motor 6 is provided with a cam 9 and a limit sensor 7 used in conjunction with the cam 9. The cam 9 is hinged with the push rod 8, and the push rod 8 is connected to the bottom end of the connecting rod 2 and the handle arranged at the bottom end of the connecting rod 2. Shaped baffle 1 is hinged. Two handle-shaped baffles 1 are hinged on the connecting rod 2 in addition, and are placed on the top and the middle of the connecting rod 2 . Each handle-shaped baffle plate 1 is provided with a fixed shaft 10, and each fixed shaft 10 is hinged with the support seat plate 3 respectively, and each support seat plate 3 is fixed on the frame support 12 according to the different heights formed by the arc section of the track truss 11.

When using the present invention, the detection equipment is installed on both sides of the horizontal section of the groove bottom surface of the track truss 11, and the test measuring blocks required for the experiment are fixed on the cargo trolley 14. It is dragged along the track in the track truss 11 to the height required for the experiment by the traction mechanism 15 through the steel wire rope connected on the cargo trolley 14, and each handle-shaped baffle plate 1 is controlled by the drive motor 6 to make the upper end surface Raise and lock the cargo trolley 14 in the desired position, as shown in Figure 2. Then, start the driving motor 6 again, the displacement distance of the push rod 8 is controlled by the limit sensor 7, and the connecting rod 2 is driven to make each handle-shaped baffle 1 form a synchronous angular displacement around each fixed rotating shaft 10, so that the upper handle of the handle-shaped baffle 1 The end face falls, as shown in Figure 4. At this time, the cargo trolley 14 is released and drives down quickly along the track in the track truss 11 . When the cargo trolley 14 reaches the horizontal section of the bottom surface of the groove of the track truss 11, it has obtained the speed required by the experiment and keeps passing through the ray scanning area of the horizontal section at a constant speed, and the detection equipment completes the radiation imaging. Immediately, the cargo trolley 14 dives into another arc section of the upper track truss 11, and performs a pendulum reciprocating motion in the track until the energy is exhausted and stops at the horizontal section of the groove bottom surface of the track truss 11. In use, different experimental test blocks can be selected according to the requirements of each experiment and the initial release height of the cargo trolley 14 can be positioned by handle-shaped baffles 1 of different heights.

Claims (2)

1. a single pendulum type device for detecting imaging experiments of high-speed moving objects, it comprises traction mechanism (15), track truss (11), locking mechanism (13) and cargo trolley (14), is characterized in that , the track truss (11) is a grooved arc segment structure supported by a frame bracket (12) that matches its shape, the bottom surface of the track truss (11) groove is a horizontal section, and the horizontal section of the groove along the track truss (11) Both sides extend the arc section, and the top side of the track truss (11) arc section installs the traction mechanism (15), and the traction mechanism (15) is placed on the track truss (11) and can be loaded with all test blocks. The cargo trolley (14) is connected, and the arc section of the track truss (11) on the side of the traction mechanism (15) is provided with the locking mechanism (13) that can lock or release the cargo trolley (14), The locking mechanism (13) includes a drive motor (6), a push rod (8) and a connecting rod (2), and the output end of the drive motor (6) is provided with a cam (9) and a limiter used in conjunction with the cam (9). The sensor (7), the cam (9) is hinged with the push rod (8), the push rod (8) is hinged with the bottom end of the connecting rod (2) and the handle-shaped baffle plate (1) arranged at the bottom end of the connecting rod (2) , the connecting rod (2) is hinged with a plurality of shank-shaped baffles (1) according to the set distance in addition, and each shank-shaped baffle (1) is provided with a fixed rotating shaft (10), and each fixed rotating shaft (10) is respectively Hinged with the support seat board (3), each support seat board (3) is fixed on the frame support (12) according to the different heights formed by the arc section of the track truss (11); when the drive motor (6) starts, the The position sensor (7) controls the displacement distance of the push rod (8), drives the connecting rod (2) to make each handle-shaped baffle plate (1) form a synchronous angular displacement around each fixed rotating shaft (10). 2. The single pendulum device according to claim 1, characterized in that two shank-shaped baffles (1) are hinged on the connecting rod (2) and placed at the top and middle of the connecting rod (2) .

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