Automatic testing device for explosion-proof electrical impact test

Abstract

The utility model provides an explosion-proof electrical impact test automatic testing device, which comprises a main body support, an impact part, a high-speed camera and an industrial personal computer, and is characterized in that the main body support comprises a base and a fixing frame, and the base is provided with a test prototype placing table; the impact part comprises a guide pipe, an electromagnet, an impact hammer, a distance measuring sensor, a motor, a pulley block and a steel wire rope, the output end of the motor is connected with the electromagnet in the guide pipe after winding the steel wire rope, the electromagnet can attract the impact hammer after being electrified, and the distance measuring sensor is installed on one side of the electromagnet; the industrial personal computer is electrically connected with the motor, the distance measuring sensor, the electromagnet and the high-speed camera. The automatic testing device for the explosion-proof electrical impact test is high in intelligent degree, the impact test can be completed and the test record can be automatically generated only through simple operation on the industrial personal computer side, repeated tests or sample replacement tests and the like can be conveniently carried out, and the testing efficiency of the impact test can be effectively improved.

Description

Technical Field

[0001] The utility model relates to the technical field of electrical equipment detection, in particular to an automatic test device for explosion-proof electrical impact test. Background Art

[0002] Explosion-proof electrical products are a type of specially designed electrical equipment used in environments where explosive gases or dust may exist. They can withstand certain impacts and high temperatures and have explosion-proof, fire-proof, waterproof and other functions. Explosion-proof electrical products are widely used in industries such as industry, mining, and petroleum. Their safety and reliability are crucial to preventing explosion accidents. Therefore, there are strict requirements for the quality inspection of explosion-proof electrical products. The explosion-proof electrical impact test is a routine test in the inspection and certification of explosion-proof electrical equipment. It is mainly used to test whether the mechanical strength of the explosion-proof electrical equipment casing meets the requirements of the national explosion-proof standards.

[0003] Article 26.4.2 of the national explosion-proof standard GB / T 3836.1-2021 introduces the method of impact test for equipment. Appendix C contains examples of impact test. At present, the impact test devices of many testing institutions are mostly mechanical, which requires manual adjustment of the height of the steel ball (impact hammer) and recording of experimental data, etc., which is not easy to operate and has low test efficiency. Although there are some impact test equipment with a high degree of automation in the prior art, which can set the parameter polarity of the test process based on the console, and can perform intelligent control in terms of steel ball lifting, starting the falling ball, and recording test data, the degree of intelligence in adjusting the height of the steel ball, recording the experimental process, and test repeatability is still lacking, and continuous improvement is needed.

[0004] Therefore, it is necessary to set up an automatic impact test equipment with a high degree of intelligence suitable for explosion-proof electrical impact test. Utility Model Content

[0005] In order to better solve the above problems, the utility model provides an explosion-proof electrical impact test automatic test device, which can complete the impact test and automatically generate test records based on simple operations and has a high degree of intelligence.

[0006] In order to achieve the above-mentioned purpose, an embodiment of the utility model provides an explosion-proof electrical impact test automatic test device, including: a main body bracket, including a base, a fixing frame, the fixing frame including a vertical rod and a horizontal rod, the vertical rod is arranged on one side of the base, the horizontal rod is fixedly connected to the top of the vertical rod and is located above the base, and the base is provided with a test prototype placement table; an impact part, including a guide tube, an electromagnet, an impact hammer, a distance measuring sensor, a motor, a pulley block, and a steel wire rope, the guide tube is arranged at the bottom of the cross rod, the electromagnet is located in the guide tube, the pulley block includes a pulley arranged on the cross rod and located at the top of the guide tube, and a pulley arranged at the connection between the cross rod and the vertical rod, the motor is arranged on the vertical rod or the base, and the output end of the motor is connected to the steel wire rope One end of the rope is wound and connected, and the other end of the wire rope is connected to the electromagnet after passing through the pulley block. The electromagnet is suspended in the guide tube. The electromagnet can absorb the impact hammer after being energized. The distance sensor is installed on one side of the electromagnet; the high-speed camera is set on the other side of the base and faces the prototype on the base; the industrial computer is electrically connected to the motor, the distance sensor, the electromagnet, and the high-speed camera respectively. When performing the impact test, the industrial computer sends a start command to the motor and receives the distance value detected by the distance sensor. When the distance value reaches the set value, the industrial computer sends a stop command to the motor, a power-off command to the electromagnet, a start command to the high-speed camera, and receives image data collected by the high-speed camera.

[0007] Optionally, it also includes a sliding trolley, and the base is also provided with a slide rail, and the sliding trolley can slide on the slide rail; the test prototype placement table is arranged on the sliding trolley.

[0008] Optionally, a prototype clamping assembly is provided on the test prototype placement table.

[0009] Optionally, it also includes a control box, which is arranged on the vertical rod; the control box is provided with a controller module electrically connected to the industrial computer, the controller module includes a motor controller electrically connected to the motor, a distance measuring module electrically connected to the distance measuring sensor, an electromagnet power supply module electrically connected to the electromagnet, and a camera module electrically connected to the high-speed camera. The industrial computer sends start, stop and forward and reverse rotation instructions to the motor through the motor controller, receives the distance value detected by the distance measuring sensor through the distance measuring module, controls the power on and off of the electromagnet by sending action instructions to the electromagnet power supply module, and receives image data collected by the high-speed camera through the camera module.

[0010] Optionally, the control box is provided with manual buttons associated with the controller, including buttons for controlling the start and stop and forward and reverse rotation of the motor and buttons for controlling the on and off of the electromagnet.

[0011] The explosion-proof electrical impact test automatic test device of the embodiment of the utility model utilizes the method of turning on and off the electromagnet to absorb the steel impact hammer, designs the connection method of the motor winding wire rope and the impact hammer, and also arranges a distance sensor to detect the distance between the impact hammer and the prototype. The impact test can be carried out by operating the industrial computer, and the forward and reverse rotation of the motor can be controlled to make the impact hammer rise and fall. After the height of the impact hammer is automatically adjusted based on the distance detected by the distance sensor, the electromagnet is controlled to cut off the power to make the impact hammer fall freely, and a high-speed camera is used to collect images of the prototype during the impact process. The user only needs to perform simple operations on the industrial computer side to complete the impact test and automatically generate the test record. It is also convenient to carry out repeated tests or change sample tests, etc., which can effectively improve the test efficiency of the impact test.

[0012] Moreover, the explosion-proof electrical impact test automatic test device of the embodiment of the utility model has the advantages of high intelligence, reliable performance, low cost, and easy use. It is suitable for impact strength testing of various explosion-proof electrical housings, glass transparent parts, cast components and other products. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0014] Figure 1 It is a structural schematic diagram of an automatic test device for explosion-proof electrical shock test according to an embodiment of the utility model.

[0015] Reference numerals:

[0016] 1. Motor; 2. Wire rope; 3. Manual button; 4. Control box; 5. Pulley 1; 6. Pulley 2; 7. Base; 8. Guide tube; 9. Data cable; 10. Distance sensor; 11. Electromagnet; 12. Impact hammer; 13. High-speed camera; 14. Slide rail; 15. Clamping assembly; 16. Sliding trolley; 17. Prototype; 18. Crossbar; 19. Vertical bar; 20. Industrial computer. DETAILED DESCRIPTION

[0017] In order to make the above-mentioned purposes, features and advantages of the utility model more obvious and easy to understand, the specific implementation methods of the utility model are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the utility model. However, the utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the utility model. Therefore, the utility model is not limited to the basic implementation disclosed below.

[0018] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art in the technical field of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0019] like Figure 1 As shown, the explosion-proof electrical impact test automatic test device of the utility model embodiment includes a main body bracket, an impact part, a high-speed camera 13, and an industrial computer 20; wherein, the main body bracket includes a base 7 and a fixed frame, the fixed frame includes a vertical rod 19 and a horizontal rod 18, the vertical rod 19 is arranged on one side of the base 7, the horizontal rod 18 is fixedly connected to the top of the vertical rod 19 and is located above the base 7, and the base 7 is provided with a test prototype placement table (not shown in the figure); the impact part includes a guide tube 8, an electromagnet 11, an impact hammer 12, a distance sensor 10, a motor 1, a pulley block, and a wire rope 2, the guide tube 8 is arranged at the bottom of the horizontal rod 18, the electromagnet 11 and the impact hammer 12 are located in the guide tube 8, the pulley block includes a pulley 2 6 arranged on the horizontal rod 18 and located at the top of the guide tube 8, and a pulley 1 5 arranged at the connection between the horizontal rod 18 and the vertical rod 19, and the motor 1 is arranged on the vertical rod 19 Or on the base 7, the output end of the motor 1 is wound and connected with one end of the wire rope 2, and the other end of the wire rope 2 is connected to the top of the electromagnet 11 after passing through the pulley block, and the electromagnet 11 is suspended in the guide tube 8. After the electromagnet 11 is energized, it can absorb the impact hammer 12, and the distance sensor 10 is installed on one side of the electromagnet 11; the high-speed camera 13 is arranged on the other side of the base 7 and faces the prototype 17 on the base 7; the industrial computer 20 is electrically connected to the motor 1, the distance sensor 10, the electromagnet 11, and the high-speed camera 13 respectively. When performing the impact test, the industrial computer sends a start command to the motor 1 and receives the distance value detected by the distance sensor 10. When the distance value reaches the set value, the industrial computer sends a stop command to the motor 1, a power-off command to the electromagnet, a start command to the high-speed camera 13, and receives the image data collected by the high-speed camera 13.

[0020] In the explosion-proof electrical impact test automatic test device of the embodiment of the utility model, the main frame can be set according to the electrical equipment to be tested in the actual working conditions, and the prototype 17 to be tested can be conveniently placed on the base 7 and the stability of the fixed frame can be ensured. For example, the vertical rod 19 and the horizontal rod 18 of the fixed frame can be made of metal materials or rigid cylindrical rods such as hard plastics, which can ensure their rigidity and facilitate the installation of the guide tube 8, the motor 1, the pulley and other components on the fixed frame. The guide tube 8 can be a transparent tube made of hard plastic, which is convenient for observing the electromagnet 11 and the impact hammer 12 therein; the shape of the electromagnet 11 can be set to a disc shape, and the upper part of the disc shape has a hoisting structure, which is convenient for connecting with the wire rope 2, and its size enables it to stably absorb the impact hammer; the impact hammer 12 can be a steel round hammer body (the bottom is a conical structure for impact test), which is convenient for the absorption and coordination with the electromagnet. The motor can be a small servo motor with high control accuracy and response speed. The motor power can provide enough pulling force for the electromagnet 11 and the impact hammer 12. The motor can be installed on the base below the vertical rod or the vertical rod. The industrial computer 20 can include a processor, a display, a manual interaction device, etc., and can be implemented by a common computer. The computer is integrated with an impact test system. The user can operate based on the computer to input the relevant parameters of the impact test (such as the set distance between the impact hammer 12 and the prototype 17, the interval time from the power off of the electromagnet 11 to the start of the high-speed camera 13, the shooting time of the high-speed camera 13, etc.), start the test operation and view the test data.

[0021] According to an exemplary embodiment of the utility model, when an impact test is required for an explosion-proof electrical product, the sample to be tested is placed on the base and the point to be impacted is aligned with the bottom end of the guide tube 8 (equivalent to the point where the impact hammer 12 is aligned), and then the electromagnet 11 is energized and absorbs the impact hammer 12, and the industrial computer 20 can be operated to start the motor, and the industrial computer 20 sends a start command to the controller (driver) of the motor to rotate the winding wire rope 2 to pull the impact hammer 12 to rise. In this process, the distance sensor 10 on one side of the electromagnet 11 measures the distance between the impact hammer 12 and the sample to be tested 17 in real time (when calculated in combination with the size of the impact hammer 12). , and send the collected distance data to the industrial computer; the industrial computer receives the distance data for analytical calculation, and when it is determined that the distance between the impact hammer 12 and the test sample reaches the set value, sends a stop command to the motor to stop the impact hammer 12 from rising, and sends a disconnection command to the power supply module of the electromagnet to cut off the power of the electromagnet 11 and release the impact hammer 12, so that the impact hammer 12 falls freely and hits the test sample; at the same time, it also sends a start command to the high-speed camera 13 to start the high-speed camera 13, and the high-speed camera 13 takes an image of the impacted part of the sample 17, captures the image of the moment when the sample is impacted and the final state of the sample, and sends the captured image data to the industrial computer. After completing an impact test, the steel wire rope can be released by controlling the motor to reverse and move the electromagnet downward, and the impact hammer 12 can be adsorbed when the electromagnet 11 (already powered) moves to the impact hammer 12; at this time, the motor 1 is controlled to rotate forward so that the electromagnet 11 drives the impact hammer 12 to move upward, and the test sample can be replaced to perform the impact test again.

[0022] In an optional embodiment, the automatic testing device also includes a sliding trolley 16, and a slide rail 14 is also provided on the base 7, and the sliding trolley 16 can slide on the slide rail 14; the test prototype placement table is arranged on the sliding trolley, and the position of the test prototype on the trolley can be adjusted by sliding cooperation between the sliding trolley and the slide rail, so as to facilitate aligning the impact point of the test prototype with the guide tube.

[0023] Furthermore, the test prototype placement table is provided with a prototype clamping assembly 15, which is used to stably clamp the test prototype on the placement table. In practical applications, in addition to the clamping function, the clamping assembly may also include a sliding structure that can slide on the placement table, so that the clamped test prototype can move longitudinally, and cooperate with the lateral movement of the sliding trolley to more conveniently adjust the position of the test prototype.

[0024] In this embodiment, the automatic testing device also includes a control box 4, which can be set on the vertical rod 19 of the fixed frame. A controller module is set in the control box 4, and the controller module includes a motor controller, a distance measuring module, an electromagnet power supply module and a camera module. The motor controller (equivalent to the motor driver module) is connected to the motor and is used to control the start and stop and forward and reverse rotation of the motor after receiving the instructions of the industrial computer; the distance measuring module is electrically connected to the distance measuring sensor, and is used to receive the distance value data detected by the distance measuring sensor and send it to the industrial computer; the electromagnet power supply module is electrically connected to the electromagnet, and is used to control the power on and off of the electromagnet after receiving the instructions of the industrial computer; the camera module is electrically connected to the high-speed camera, and is used to receive the image data collected by the high-speed camera and send it to the industrial computer. The controller module is directly connected to each component, and the industrial computer is connected to each component through the controller module. When conducting an impact test, the user starts the test based on the operation options in the industrial computer. The industrial computer sends motor start and stop, forward and reverse rotation instructions, and electromagnet power on and off instructions to the controller module. The motor controller then controls the motor to perform the corresponding actions, and the electromagnet power supply module performs the corresponding power on and off actions. The ranging module and the camera module receive the data and send it to the industrial computer after pre-processing.

[0025] Furthermore, a plurality of manual buttons 3 associated with the controller are provided on the control box 4. The controller is electrically connected to the sensing elements of the plurality of manual buttons 3. The plurality of manual buttons 3 include buttons for controlling the start and stop and forward and reverse rotation of the motor and buttons for controlling the on and off of the electromagnet. The user can perform manual operation control of the impact test based on the plurality of manual buttons.

[0026] It should be noted that the figure shows the setting position and connection relationship of each component in the explosion-proof electrical shock test automatic test device of the embodiment of the utility model (including the control box being electrically connected to the motor 1, the ranging sensor 10, the high-speed camera 13, the industrial computer 20, etc. through multiple data lines 9, and the output end of the motor 1 being connected to the top of the electromagnet 11 through the wire rope 2), which are all optional implementation methods. In other embodiments, they can also be adjusted according to actual working conditions.

[0027] Furthermore, in actual application scenarios, the motor, pulley, electromagnet, impact hammer, high-speed camera, etc. in the explosion-proof electrical shock test automatic test device can all adopt devices with corresponding functions in the existing technology. For example, the high-speed camera can adopt a CCD camera with stable photography.

[0028] Furthermore, other devices or components may be provided in the automatic test device for explosion-proof electrical shock test to realize practical application or other functions of the automatic test device for explosion-proof electrical shock test. For example, the vertical rod 19 of the mounting frame is designed as a telescopic rod structure, and the device can be adapted to larger devices by adjusting the height of the vertical rod.

[0029] It should be pointed out that, according to the needs of implementation, the various components described in the embodiments of the present utility model can be split into more components, or two or more components or parts of components can be combined into new components to achieve the purpose of the embodiments of the present utility model.

[0030] The above embodiments only express several implementation methods of the utility model, and the descriptions are relatively specific and detailed, but they cannot be understood as limiting the scope of the utility model patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.

Claims

1. An automatic test device for explosion-proof electrical shock test, characterized in that: include: The main frame includes a base and a fixing frame, wherein the fixing frame includes a vertical rod and a horizontal rod, wherein the vertical rod is arranged on one side of the base, and the horizontal rod is fixedly connected to the top of the vertical rod and is located above the base, and the base is provided with a test sample placement table; The impact part includes a guide tube, an electromagnet, an impact hammer, a distance sensor, a motor, a pulley block, and a wire rope. The guide tube is arranged at the bottom of the crossbar, the electromagnet is located in the guide tube, the pulley block includes a pulley arranged on the crossbar and located at the top of the guide tube, and a pulley arranged at the connection between the crossbar and the vertical rod. The motor is arranged on the vertical rod or the base, the output end of the motor is wound and connected with one end of the wire rope, the other end of the wire rope passes through the pulley block and is connected to the electromagnet, the electromagnet is suspended in the guide tube, the electromagnet can absorb the impact hammer after being energized, and the distance sensor is installed on one side of the electromagnet; A high-speed camera is arranged on the other side of the base and faces the prototype on the base; The industrial computer is electrically connected to the motor, the distance sensor, the electromagnet and the high-speed camera respectively. When performing the impact test, the industrial computer sends a start command to the motor and receives the distance value detected by the distance sensor. When the distance value reaches the set value, the industrial computer sends a stop command to the motor, a power-off command to the electromagnet, a start command to the high-speed camera, and receives image data collected by the high-speed camera.

2. The explosion-proof electrical shock test automatic test device according to claim 1, characterized in that: It also includes a sliding trolley. The base is also provided with a slide rail, and the sliding trolley can slide on the slide rail; the test prototype placement table is arranged on the sliding trolley.

3. The explosion-proof electrical shock test automatic test device according to claim 2, characterized in that: The test prototype placement table is provided with a prototype clamping assembly.

4. An automatic test device for explosion-proof electrical shock test according to any one of claims 1 to 3, characterized in that: It also includes a control box, which is arranged on the vertical rod; the control box is provided with a controller module electrically connected to the industrial computer, the controller module includes a motor controller electrically connected to the motor, a distance measuring module electrically connected to the distance measuring sensor, an electromagnet power supply module electrically connected to the electromagnet, and a camera module electrically connected to the high-speed camera. The industrial computer sends start / stop and forward / reverse rotation instructions to the motor through the motor controller, receives the distance value detected by the distance measuring sensor through the distance measuring module, controls the on / off of the electromagnet by sending action instructions to the electromagnet power supply module, and receives image data collected by the high-speed camera through the camera module.

5. The explosion-proof electrical shock test automatic test device according to claim 4, characterized in that: The control box is provided with manual buttons associated with the controller, including buttons for controlling the start and stop and forward and reverse rotation of the motor and buttons for controlling the on and off of the electromagnet.

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