A performance detection device for an explosion-proof distribution box

Abstract

The present invention relates to the technical field of distribution box detection. Specifically, it relates to a performance detection device for explosion-proof distribution boxes, including a bottom plate, shock-absorbing columns, a first mounting plate, a vibration motor, etc.; several shock-absorbing columns distributed in a rectangular array are fixedly connected to the bottom plate; a first mounting plate is fixedly connected to all the shock-absorbing columns; several vibration motors are fixedly connected to the lower part of the first mounting plate. The performance detection device for explosion-proof distribution boxes obtained by the above design of the present invention uses blunt, conical or multi-conical impact objects to perform strength performance detection on the explosion-proof distribution box, so that strength performance data of different impact objects on the explosion-proof distribution box can be collected, ensuring the integrity of the data of the explosion-proof distribution box. There is no need to place the explosion-proof distribution box in multiple different detection devices for testing, saving a lot of time and improving the diversity of the detection device and the detection efficiency.

Description

Technical Field

[0001] The present invention relates to the technical field of distribution box detection, and more specifically, to a performance detection device for explosion-proof distribution boxes. Background Art

[0002] An explosion-proof distribution box is a power distribution device designed specifically for safe use in environments where flammable gases, vapors, or dusts exist. Before the production and commissioning of an explosion-proof distribution box, it is an essential step to conduct performance tests on the explosion-proof distribution box samples.

[0003] During the actual use of an explosion-proof distribution box, it may be impacted by different objects. However, existing explosion-proof distribution box detection equipment can only perform strength tests on the explosion-proof distribution box using a single impact object and cannot conduct strength tests on the explosion-proof distribution box using different impact objects. As a result, the strength test data of the explosion-proof distribution box is not comprehensive and accurate enough. To ensure the comprehensiveness and accuracy of the test data, the explosion-proof distribution box needs to be placed in multiple detection devices for strength testing, which not only increases the operation steps of the test but also takes a lot of time. Summary of the Invention

[0004] The purpose of the present invention is to overcome the shortcomings that existing detection equipment can only perform strength tests on explosion-proof distribution boxes using a single impact object and cannot conduct strength tests on explosion-proof distribution boxes using different impact objects, resulting in insufficient comprehensiveness and accuracy of the strength test data of explosion-proof distribution boxes. To ensure the comprehensiveness and accuracy of the test data, the explosion-proof distribution box needs to be placed in multiple detection devices for strength testing, which not only increases the operation steps of the test but also takes a lot of time. The present invention provides a detection device that can perform strength performance tests and environmental performance tests on explosion-proof distribution boxes, saving a lot of time.

[0005] Another object of the present invention is to provide a performance detection device for explosion-proof distribution boxes with the above functions.

[0006] Embodiments of the present invention are achieved through the following technical solutions: A performance detection device for an explosion-proof distribution box, comprising a bottom plate, shock-absorbing columns, a first mounting plate, and vibration motors; several shock-absorbing columns are fixedly connected to the bottom plate and are distributed in a rectangular array; a first mounting plate is fixedly connected to all the shock-absorbing columns; several vibration motors are fixedly connected to the lower part of the first mounting plate; it further comprises a cylindrical barrel, a fixed seat, an impact object, a pushing component, a power component, a second mounting plate, a rotating component, a swinging component, and an electric gripper; a cylindrical barrel is fixedly connected to the first mounting plate; several fixed seats are fixedly connected to the upper part of the inner ring surface of the cylindrical barrel and are distributed in an annular array; each fixed seat is rotatably connected to an impact object through a rotating shaft, and the shapes of the three impact objects are blunt, single-cone, and multi-cone respectively; a pushing component for adjusting the angle of the impact object is connected to the lower part of the inner ring surface of the cylindrical barrel; a power component is connected to the first mounting plate; a second mounting plate is connected to the power component; a rotating component for driving the explosion-proof distribution box to rotate is connected to the second mounting plate; a swinging component for driving the explosion-proof distribution box to swing is connected to the rotating component; an electric gripper is connected to the swinging component; the power component is used to drive the second mounting plate, the rotating component, the swinging component, and the electric gripper to move forward together.

[0007] As a preferred technical solution of the present invention, the pushing component comprises a first electric push rod, a circular ring, a second electric push rod, and a support plate; several first electric push rods are fixedly connected to the lower part of the inner ring surface of the cylindrical barrel and are distributed in an annular array; the telescopic parts of several first electric push rods are fixedly connected to a circular ring; an inclined surface is provided on the circular ring, and the inclined surface contacts the side of the three impact objects facing the cylindrical barrel; several second electric push rods are fixedly connected to the inner bottom wall of the cylindrical barrel; the telescopic parts of the second electric push rods are rotatably connected to a support plate.

[0008] As a preferred technical solution of the present invention, the rotating component comprises a fixed plate, a first motor, a spur gear, a turntable, and a toothed ring; a fixed plate is fixedly connected to the upper surface of the second mounting plate; a first motor is fixedly connected to the fixed plate; the output shaft of the first motor is fixedly connected to a spur gear; a turntable is rotatably connected to the middle part of the second mounting plate; a toothed ring is fixedly connected to the upper part of the turntable; the spur gear meshes with the toothed ring.

[0009] As a preferred technical solution of the present invention, the swinging component comprises a connecting column, a universal shaft, a connecting plate, a third electric push rod, and a connecting block; a connecting column is fixedly connected to the lower surface of the turntable; a universal shaft is fixedly connected to the connecting column; a connecting plate is fixedly connected to the universal shaft; a third electric push rod is fixedly connected to the rear part of the lower surface of the turntable; the telescopic part of the third electric push rod is fixedly connected to a connecting block; the connecting block is fixedly connected to the lower end of the universal shaft.

[0010] As a preferred technical solution of the present invention, the connection between the fixed seat and the impact object is detachable, and the impact object with a blunt shape, single-cone shape, or multi-cone shape can be replaced with an impact object of the required shape according to the different performance detection effects required for the explosion-proof distribution box.

[0011] As a preferred technical solution of the present invention, it further includes an extension component. A lower part of the second mounting plate is connected with an extension component for closing the round barrel; the extension component includes a fixed ring, an annular telescopic cloth, a limiting ring and a fourth electric push rod; a lower part of the second mounting plate is fixedly connected with a fixed ring, and the fixed ring is located outside the turntable; the fixed ring is fixedly connected with an annular telescopic cloth; a lower end of the annular telescopic cloth is fixedly connected with a limiting ring; a plurality of fourth electric push rods distributed in an annular array are fixedly connected to the second mounting plate, and the plurality of fourth electric push rods are located outside the fixed ring; telescopic parts of the plurality of fourth electric push rods are jointly fixedly connected with the limiting ring; an annular groove is formed in an upper surface of the round barrel, and the limiting ring fits with the annular groove.

[0012] As a preferred technical solution of the present invention, it further includes an environment simulation component. An upper part of the second mounting plate is connected with an environment simulation component for simulating a sandstorm or underwater environment; the environment simulation component includes a mounting frame, a storage box, a T-shaped pipe, an electric valve, an L-shaped bracket, a fifth electric push rod, a fixing frame and a first cylinder; the upper part of the second mounting plate is fixedly connected with a mounting frame, and the mounting frame is located in front of the turntable; the mounting frame is fixedly connected with a storage box; a T-shaped pipe is fixedly connected to a middle part of the storage box, and the T-shaped pipe is located inside the annular telescopic cloth; a boss is arranged in the storage box; a plurality of slot holes distributed in an annular array are formed in the T-shaped pipe; the plurality of slot holes are located above the boss; an electric valve is connected to each of a left part and a right part of the T-shaped pipe; a plurality of L-shaped brackets distributed in an annular array are fixedly connected to an upper surface of the storage box; a fifth electric push rod is fixedly connected to each of the L-shaped brackets; telescopic parts of all the fifth electric push rods are jointly fixedly connected with a fixing frame; the fixing frame is fixedly connected with a first cylinder; the first cylinder is slidably arranged on the T-shaped pipe, and the first cylinder blocks the plurality of slot holes.

[0013] As a preferred technical solution of the present invention, the environment simulation component further includes a guiding ring, an exhaust pipe and a filter cloth; the guiding ring is fixedly connected to an inner wall of the T-shaped pipe, and the guiding ring is located above the plurality of slot holes; an exhaust pipe is embedded in the turntable; the filter cloth is fixedly connected to an inner wall of the exhaust pipe.

[0014] As a preferred technical solution of the present invention, it further includes a heater, and the heater is arranged on the round barrel.

[0015] As a preferred technical solution of the present invention, it further includes a sand discharging assembly. A sand discharging assembly for discharging sand is connected to the lower part of the round barrel; the sand discharging assembly includes an inclined plate, a guiding plate, a second cylinder, a round plate, a second motor, a positioning block and an annular plate; the lower part of the inner ring surface of the round barrel is fixedly connected with the inclined plate; a rectangular groove is formed in the front part of the round barrel; the guiding plate is fixedly connected to the outer side of the round barrel, and the guiding plate is located outside the rectangular groove; the middle part of the inclined plate is fixedly connected with the second cylinder; the inner ring surface of the second cylinder is fixedly connected with the round plate; the lower surface of the round plate is fixedly connected with the second motor; the output shaft of the second motor is fixedly connected with the positioning block; the positioning block is inserted into the supporting plate; a plurality of first through holes are formed in the supporting plate; the annular plate is fixedly connected to the outer side of the second cylinder, and the annular plate is mutually attached to the supporting plate; a plurality of second through holes are formed in the annular plate, and the plurality of first through holes and the plurality of second through holes are arranged in a staggered manner.

[0016] Beneficial effects:

[0017] The performance detection device for explosion-proof distribution boxes obtained by the above design of the present invention uses blunt, conical or multi-conical impact objects to perform strength performance detection on explosion-proof distribution boxes, so that strength performance data of explosion-proof distribution boxes under different impact objects can be collected, ensuring the integrity of the data of explosion-proof distribution boxes. There is no need to place the explosion-proof distribution box in multiple different detection devices for testing, saving a large amount of time and improving the diversity and detection efficiency of the detection device;

[0018] At the same time, by controlling the rest positions of the explosion-proof distribution box to face different-shaped impact objects in turn, the strength of the explosion-proof distribution box is detected from multiple angles and multiple points to comprehensively detect the strength of the explosion-proof distribution box from multiple angles.

[0019] The performance detection device for explosion-proof distribution boxes obtained by the above design of the present invention clamps the explosion-proof distribution box by an electric gripper and drops it from the air onto the supporting plate below for drop detection.

[0020] The performance detection device for explosion-proof distribution boxes obtained by the above design of the present invention fully unfolds the annular telescopic cloth, so that the round barrel, the second mounting plate, the turntable and the annular telescopic cloth form a relatively enclosed space. Then, through the vibration of the vibration motor, the sand in the storage box enters the T-shaped pipe through a plurality of slot holes and is carried by the continuously flowing wind into the lower enclosed space to form a sand and dust environment in the enclosed space. The explosion-proof distribution box is tested through the sand and dust environment to detect the dust-proof performance of the explosion-proof distribution box.

[0021] When the sand and dust detection is completed, the explosion-proof distribution box is clamped by the electric gripper and dropped onto the supporting plate with sand to simulate the drop detection of the explosion-proof distribution box falling on the sand ground;

[0022] After a large amount of sand has accumulated on the pallet, control the rotation of the pallet so that a number of through holes one on the pallet coincide with a number of through holes two on the ring plate. Under the continuous action of the vibration motor, let the sand fall from the through holes one and two onto the inclined plate and be discharged from the guide plate, avoiding a large amount of sand remaining on the pallet and affecting the subsequent performance detection of the explosion-proof distribution box.

[0023] The performance detection device for an explosion-proof distribution box obtained by the above design of the present invention, when a relatively enclosed space is formed by the round barrel, the second mounting plate, the turntable and the annular telescopic cloth, inject water into the enclosed space through a water pipe. After the explosion-proof distribution box is immersed in water, a soaking environment is formed in the enclosed space, and the explosion-proof distribution box is tested through the soaking environment. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The drawings forming a part of this application are used to provide a further understanding of the present invention. The schematic embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation to the present invention.

[0025] In the drawings:

[0026] Figure 1 is a three-dimensional structural schematic diagram of the performance detection device for an explosion-proof distribution box of the present invention;

[0027] Figure 2 is a three-dimensional structural schematic diagram of the round barrel, the fixed seat, the impact object and the pushing component of the performance detection device for an explosion-proof distribution box of the present invention;

[0028] Figure 3 is a three-dimensional structural schematic diagram of the second mounting plate, the rotating component, the swinging component and the electric gripper of the performance detection device for an explosion-proof distribution box of the present invention;

[0029] Figure 4 is a three-dimensional structural schematic diagram of the second mounting plate, the rotating component, the extending component and the environment simulation component of the performance detection device for an explosion-proof distribution box of the present invention;

[0030] Figure 5 is a three-dimensional structural schematic diagram of the environment simulation component of the performance detection device for an explosion-proof distribution box of the present invention;

[0031] Figure 6 is a three-dimensional structural schematic diagram of the turntable, the exhaust pipe and the filter cloth of the performance detection device for an explosion-proof distribution box of the present invention;

[0032] Figure 7 is a three-dimensional structural schematic diagram of the round barrel, the second electric push rod, the pallet, the heater and the sand discharge component of the performance detection device for an explosion-proof distribution box of the present invention;

[0033] Figure 8Schematic three-dimensional structure diagram of the electric push rod two, the support plate and the sand discharge assembly for the performance detection device of the explosion-proof distribution box of the present invention.

[0034] In the figure, the markings are: 1 - bottom plate, 2 - shock-absorbing column, 3 - mounting plate one, 4 - vibration motor, 5 - round barrel, 6 - fixed seat, 7 - impact object, 8 - mounting plate two, 9 - electric gripper,

[0035] 101 - electric push rod one, 102 - circular ring, 103 - electric push rod two, 104 - support plate,

[0036] 201 - support frame, 202 - electric slide rail, 203 - electric slider,

[0037] 301 - fixing plate, 302 - motor one, 303 - spur gear, 304 - turntable, 305 - toothed ring, 306 - connecting column, 307 - universal shaft, 308 - connecting plate, 309 - electric push rod three, 310 - connecting block,

[0038] 401 - fixing ring, 402 - annular telescopic cloth, 403 - limiting ring, 404 - electric push rod four,

[0039] 501 - mounting frame, 502 - storage box, 503 - T-shaped pipe, 504 - electric valve, 505 - L-shaped bracket, 506 - electric push rod five, 507 - fixing frame, 508 - cylinder one, 509 - guiding ring, 510 - exhaust pipe, 511 - filter cloth, 512 - heater,

[0040] 601 - inclined plate, 602 - guiding plate, 603 - cylinder two, 604 - circular plate, 605 - motor two, 606 - positioning block, 607 - ring plate,

[0041] 10201 - inclined plane, 10401 - through hole one, 5001 - annular groove, 5002 - rectangular groove, 50201 - boss, 50301 - slot hole, 60701 - through hole two. Detailed implementation manners

[0042] Next, each implementation manner of the present invention will be described with reference to the drawings. In addition, in the following figures, in order to make each layer and each component recognizable to a certain degree, the scales of each layer and each component are appropriately changed for schematic illustration. Just for clarification, the orientation terms such as up, down, left, right, front, back, inside, and outside that appear or will appear in the text of the present invention are only based on the drawings of the present invention, and they do not specifically limit the present invention.

[0043] Embodiment 1

[0044] A performance detection device for an explosion-proof distribution box, as Figures 1 - 3As shown in the figure, it includes a bottom plate 1, shock-absorbing columns 2, a first mounting plate 3, and a vibration motor 4. Four shock-absorbing columns 2 distributed in a rectangular array are fixedly connected to the bottom plate 1. A first mounting plate 3 is fixedly connected to all the shock-absorbing columns 2. Two vibration motors 4 are bolted to the lower part of the first mounting plate 3.

[0045] It further includes a cylindrical barrel 5, a fixed seat 6, an impact object 7, a pushing component, a power component, a second mounting plate 8, a rotating component, a swinging component, and an electric gripper 9. A cylindrical barrel 5 is fixedly connected to the first mounting plate 3. Three fixed seats 6 distributed in an annular array are fixedly connected to the upper part of the inner ring surface of the cylindrical barrel 5. Each fixed seat 6 is rotatably connected to an impact object 7 through a rotating shaft, and the shapes of the three impact objects 7 are blunt, single-cone, and multi-cone respectively. The lower part of the inner ring surface of the cylindrical barrel 5 is connected to a pushing component. A power component is connected to the first mounting plate 3. The power component is connected to a second mounting plate 8. The rotating component is connected to the second mounting plate 8. The swinging component is connected to the rotating component. The electric gripper 9 is connected to the swinging component. The power component is used to drive the second mounting plate 8, the rotating component, the swinging component, and the electric gripper 9 to move forward together.

[0046] The pushing component includes an electric push rod one 101, a ring 102, an electric push rod two 103, and a support plate 104. Four electric push rods one 101 distributed in an annular array are bolted to the lower part of the inner ring surface of the cylindrical barrel 5. The telescopic parts of the four electric push rods one 101 are fixedly connected to a ring 102. An inclined surface 10201 is provided on the ring 102, and the inclined surface 10201 is in contact with one side of the three impact objects 7 facing the cylindrical barrel 5. Two electric push rods two 103 are fixedly connected to the inner bottom wall of the cylindrical barrel 5. The telescopic parts of the electric push rods two 103 are rotatably connected to a support plate 104.

[0047] The power component includes a support frame 201, an electric slide rail 202, and an electric slide block 203. A support frame 201 is fixedly connected to the left part and the right part of the upper surface of the first mounting plate 3 respectively. An electric slide rail 202 is bolted to the opposite sides of the two support frames 201 respectively. An electric slide block 203 is slidably connected to each electric slide rail 202. The two electric slide blocks 203 are jointly fixedly connected to the second mounting plate 8.

[0048] The rotating component includes a fixing plate 301, a motor one 302, a spur gear 303, a turntable 304, and a toothed ring 305. A fixing plate 301 is fixedly connected to the upper surface of the second mounting plate 8. A motor one 302 is bolted to the fixing plate 301. The output shaft of the motor one 302 is fixedly connected to a spur gear 303. The middle part of the second mounting plate 8 is rotatably connected to a turntable 304. A toothed ring 305 is fixedly connected to the upper part of the turntable 304. The spur gear 303 meshes with the toothed ring 305.

[0049] The swing assembly includes a connecting column 306, a universal shaft 307, a connecting plate 308, an electric push rod III 309, and a connecting block 310; the connecting column 306 is fixedly connected to the lower surface of the turntable 304; the universal shaft 307 is fixedly connected to the connecting column 306; the connecting plate 308 is fixedly connected to the universal shaft 307; the electric push rod III 309 is bolted to the rear part of the lower surface of the turntable 304; the telescopic part of the electric push rod III 309 is fixedly connected to the connecting block 310; the connecting block 310 is fixedly connected to the lower end of the universal shaft 307.

[0050] The fixed seat 6 and the impact object 7 are detachably connected, and the blunt or single-cone or multi-cone impact object 7 can be replaced with an impact object 7 of the required shape according to the different performance detection effects required by the explosion-proof distribution box.

[0051] The working steps of this embodiment are as follows:

[0052] For the following rotations, the viewing directions are all from front to back, from top to bottom, and from right to left;

[0053] In the first step, when in use, first place the performance detection device for this explosion-proof distribution box at the required position;

[0054] In the second step, the operator externally connects a power source to all components that require electric drive. The operator places the explosion-proof distribution box facing forward on the pallet 104 of the drum 5, and aligns the center point of the explosion-proof distribution box with the center point of the pallet 104. There is a spacing between the explosion-proof distribution box and the drum 5. Then, the operator controls the electric slider 203 to move forward on the electric slide rail 202. The two electric sliders 203 drive the mounting plate II 8, the rotating assembly, the swinging assembly, and the electric gripper 9 to move forward together. After moving the electric gripper 9 directly above the explosion-proof distribution box, the operator then controls the telescopic parts of the two electric push rods II 103 to extend, driving the pallet 104 and the explosion-proof distribution box to move upward together, so that the explosion-proof distribution box moves between the two jaws of the electric gripper 9. Then, the operator controls the jaws of the electric gripper 9 to close to clamp the explosion-proof distribution box. Next, the operator controls the telescopic parts of the two electric push rods II 103 to contract, driving the connected components to move downward and no longer support the explosion-proof distribution box. Then, the operator controls the telescopic parts of the four electric push rods I 101 to extend, driving the ring 102 to move upward together. During the movement of the ring 102, the ring 102 will push the three impact objects 7 to rotate around the rotating shaft of the fixed seat 6, so that the three impact objects 7 change from the downward vertical state to the inclined state facing the explosion-proof distribution box. At this time, one of the blunt impact objects 7 is located directly in front of the explosion-proof distribution box. Then, the operator controls the telescopic part of the electric push rod III 309 to extend, driving the connecting block 310, the connecting plate 308, the electric gripper 9, and the explosion-proof distribution box to swing forward together around the axis of the universal joint 307, so that the explosion-proof distribution box impacts the blunt impact object 7 to test the strength performance data of the explosion-proof distribution box. At the same time, if it is also necessary to obtain the data after the explosion-proof distribution box is impacted by the conical impact object 7 or the multi-conical impact object 7, the operator controls the output shaft of the motor I 302 to rotate clockwise with the spur gear 303. The spur gear 303 drives the turntable 304, the toothed ring 305, the connecting column 306, the universal joint 307, the connecting plate 308, the electric push rod III 309, the connecting block 310, the electric gripper 9, and the explosion-proof distribution box to rotate clockwise together, turning the front of the explosion-proof distribution box to face the conical impact object 7 or the multi-conical impact object 7, and performing strength performance detection on the explosion-proof distribution box through the conical impact object 7 or the multi-conical impact object 7. In this way, the strength performance data of the explosion-proof distribution box under different impact objects 7 can be collected, ensuring the integrity of the data of the explosion-proof distribution box. There is no need to place the explosion-proof distribution box in multiple different testing devices for testing, saving a large amount of time and improving the diversity of the testing equipment and the testing efficiency.

[0055] When detecting the explosion-proof distribution box, the spur gear 303 drives the turntable 304, the toothed ring 305, the connecting column 306, the universal shaft 307, the connecting plate 308, the electric push rod three 309, the connecting block 310, the electric gripper 9 and the explosion-proof distribution box to rotate clockwise together, so that the remaining positions of the explosion-proof distribution box are successively aligned with the impact objects 7 of different shapes. Then, the telescopic part of the electric push rod three 309 is pushed out, driving the connecting block 310, the connecting plate 308, the electric gripper 9 and the explosion-proof distribution box to swing forward together with the axis of the universal shaft 307, so as to perform strength detection on the explosion-proof distribution box from multiple angles and multiple positions, and detect the strength of the explosion-proof distribution box from multiple angles. Since the purpose of the explosion-proof distribution box is to prevent explosion and ensure that the internal parts are not damaged, the explosion-proof distribution box needs to meet the strength standard from multiple angles. However, the existing detection is only a single-point impact strength detection from bottom to top, and only the single-point strength of the explosion-proof distribution box can be obtained, and the multi-angle strength of the explosion-proof distribution box cannot be obtained. The existing detection has limitations.

[0056] In the third step, after the strength performance detection of the explosion-proof distribution box is completed, control the telescopic part of the electric push rod three 309 to contract, drive the connected components and the explosion-proof distribution box to swing, change from the inclined state to the vertical state, and then control the telescopic parts of all the electric push rods one 101 to contract, drive the connected components to move downward, and no longer force the three impact objects 7 to be in an inclined state, so that the three impact objects 7 return to the vertical state under the action of gravity. Then control the two jaws of the electric gripper 9 to open, drop the explosion-proof distribution box onto the lower pallet 104 for drop detection, and then control the two electric sliders 203 to drive the connected components to move backward, move the connected components and the electric gripper 9 to the rear of the barrel 5, and then the operator takes away the explosion-proof distribution box in the barrel 5.

[0057] Embodiment 2

[0058] On the basis of Embodiment 1, as Figures 4 - 8 shown, it further includes an extension component, and the lower part of the mounting plate two 8 is connected with an extension component; the extension component includes a fixed ring 401, an annular telescopic cloth 402, a limit ring 403 and an electric push rod four 404; the lower part of the mounting plate two 8 is fixedly connected with a fixed ring 401, and the fixed ring 401 is located outside the turntable 304; the fixed ring 401 is fixedly connected with an annular telescopic cloth 402; the lower end of the annular telescopic cloth 402 is fixedly connected with a limit ring 403; three electric push rods four 404 distributed in an annular array are bolted on the mounting plate two 8, and the three electric push rods four 404 are located outside the fixed ring 401; the telescopic parts of the three electric push rods four 404 are jointly fixedly connected with the limit ring 403; an annular groove 5001 is opened on the upper surface of the barrel 5, and the limit ring 403 fits with the annular groove 5001.

[0059] It also includes an environmental simulation component. An environmental simulation component is connected to the upper part of the second mounting plate 8. The environmental simulation component includes a mounting frame 501, a storage box 502, a T-shaped pipe 503, an electric valve 504, an L-shaped bracket 505, a fifth electric push rod 506, a fixing frame 507, and a first cylinder 508. The upper part of the second mounting plate 8 is fixedly connected with the mounting frame 501, and the mounting frame 501 is located in front of the turntable 304. The mounting frame 501 is fixedly connected with the storage box 502. The middle part of the storage box 502 is fixedly connected with the T-shaped pipe 503, and the T-shaped pipe 503 is located inside the annular telescopic cloth 402. A boss 50201 is arranged in the storage box 502. A plurality of slot holes 50301 distributed in an annular array are formed in the T-shaped pipe 503. The plurality of slot holes 50301 are located above the boss 50201. An electric valve 504 is connected to each of the left and right parts of the T-shaped pipe 503. Four L-shaped brackets 505 distributed in an annular array are fixedly connected to the upper surface of the storage box 502. A fifth electric push rod 506 is bolted to each L-shaped bracket 505. The telescopic parts of all the fifth electric push rods 506 are fixedly connected with the fixing frame 507. The fixing frame 507 is fixedly connected with the first cylinder 508. The first cylinder 508 is slidably arranged on the T-shaped pipe 503, and the first cylinder 508 plugs the plurality of slot holes 50301. The boss 50201 is used to limit the first cylinder 508 from moving too downward to ensure that the first cylinder 508 plugs the slot holes 50301.

[0060] The environmental simulation component also includes a guide ring 509, an exhaust pipe 510, and a filter cloth 511. The guide ring 509 is fixedly connected to the inner wall of the T-shaped pipe 503, and the guide ring 509 is located above the plurality of slot holes 50301. The exhaust pipe 510 is embedded in the turntable 304. The filter cloth 511 is fixedly connected to the inner wall of the exhaust pipe 510.

[0061] It also includes a heater 512. The heater 512 is arranged on the barrel 5.

[0062] It further includes a sand discharge assembly, and the lower part of the round barrel 5 is connected with the sand discharge assembly; the sand discharge assembly includes an inclined plate 601, a guide plate 602, a second cylinder 603, a round plate 604, a second motor 605, a positioning block 606 and an annular plate 607; the lower part of the inner ring surface of the round barrel 5 is fixedly connected with the inclined plate 601; a rectangular groove 5002 is formed in the front part of the round barrel 5; the outer side of the round barrel 5 is fixedly connected with the guide plate 602, and the guide plate 602 is located outside the rectangular groove 5002; the middle part of the inclined plate 601 is fixedly connected with the second cylinder 603; the inner ring surface of the second cylinder 603 is fixedly connected with the round plate 604; the lower surface of the round plate 604 is bolted with the second motor 605; the output shaft of the second motor 605 is fixedly connected with the positioning block 606; the positioning block 606 is inserted into the support plate 104; a number of through holes 10401 are formed in the support plate 104; the outer side of the second cylinder 603 is fixedly connected with the annular plate 607, and the annular plate 607 is mutually attached to the support plate 104; a number of through holes 60701 are formed in the annular plate 607, and the number of through holes 10401 and the number of through holes 60701 are arranged in a staggered manner.

[0063] The working principle of this embodiment is as follows:

[0064] The operator externally connects a power supply to all components that require electric drive, externally connects a blower to the electric valve 504 on the left and a water pipe to the electric valve 504 on the right, and adds sand to the storage box 502. Since the explosion-proof distribution box needs to be applied in different environments, it is necessary to detect the performance of the explosion-proof distribution box under different environmental conditions. However, the existing equipment can only perform single-type environmental detection on the explosion-proof distribution box and cannot achieve multi-environment simulation detection in the same equipment, resulting in the need to perform the environmental performance detection of the explosion-proof distribution box in multiple detection devices. This not only takes a long time but also has low detection efficiency. Therefore, when it is necessary to simulate a sand and dust environment to perform dust-proof detection on the explosion-proof distribution box, after the operator places the explosion-proof distribution box on the support plate 104, then controls the telescopic parts of the three electric push rods four 404 to push out, driving the lower ends of the limit ring 403 and the annular telescopic cloth 402 to move downward together, stretching the annular telescopic cloth 402 downward until the limit ring 403 is inserted into the annular groove 5001 of the round barrel 5 and the annular telescopic cloth 402 is fully unfolded, so that the round barrel 5, the second mounting plate 8, the turntable 304 and the annular telescopic cloth 402 form a relatively airtight space, and the explosion-proof distribution box is located inside the annular telescopic cloth 402. Therefore, the explosion-proof distribution box is in a relatively airtight space. Then, control the rotor shafts of the two vibration motors 4 to start. A set of adjustable eccentric blocks are installed at both ends of each rotor shaft. The centrifugal force generated by the high-speed rotation of the rotor shaft and the eccentric block is used to obtain the exciting force, and the exciting force is transmitted to the first mounting plate 3, the round barrel 5, the fixed seat 6, the impact object 7, the pushing component, the explosion-proof distribution box, the power component, the second mounting plate 8, the rotating component, the swinging component, the electric gripper 9, the extension component, the environmental simulation component and the sand discharge component, causing the components on the first mounting plate 3 to vibrate;

[0065] During the continuous operation of the vibration motor 4, control the external fan to turn on, open the left electric valve 504, let the air blown by the fan enter the T-shaped pipe 503, then enter the enclosed space from the lower end of the T-shaped pipe 503, and then control the telescopic parts of the three electric push rods five 506 to contract, driving the fixed frame 507 and the first cylinder 508 to move upward together, no longer blocking a number of slots 50301. During the continuous vibration process, the sand in the storage box 502 will pass through a number of slots 50301 and enter the T-shaped pipe 503, and be carried by the continuously flowing air into the enclosed space below, forming a sand and dust environment in the enclosed space, and testing the explosion-proof distribution box through the sand and dust environment. As the fan continuously blows air into the enclosed space, the gas in the enclosed space will be discharged outwards through the exhaust pipe 510, forming a flow of air in the enclosed space. When the gas passes through the filter cloth 511 in the exhaust pipe 510, the dust in the gas will be intercepted to prevent the dust from spreading in the air;

[0066] When the dust-proof detection of the explosion-proof distribution box is completed, control the fan and the left electric valve 504 to close together, push out the telescopic parts of the three electric push rods five 506, drive the connected components to move downward, block a number of slots 50301, and then control the telescopic parts of the three electric push rods four 404 to contract, drive the connected components to move upward, make the annular telescopic cloth 402 contract, no longer form an enclosed space, the operator takes out the explosion-proof distribution box, and then checks whether the sand and dust have entered the explosion-proof distribution box to confirm the dust-proof performance of the explosion-proof distribution box;

[0067] When the sand and dust detection is completed and there is sand remaining on the support plate 104, the operator then controls the telescopic parts of the two electric push rods two 103 to push out, driving the support plate 104 and the explosion-proof distribution box to move upward together, moving the explosion-proof distribution box between the two jaws of the electric gripper 9. Then control the two jaws of the electric gripper 9 to close, clamp the explosion-proof distribution box, and then control the telescopic parts of the two electric push rods two 103 to contract, driving the support plate 104 to move downward, making the explosion-proof distribution box suspended. Then control the two jaws of the electric gripper 9 to open, and drop the explosion-proof distribution box onto the support plate 104 with sand to simulate the drop test of the explosion-proof distribution box falling on the sandy ground.

[0068] After the device has performed multiple sand and dust detections, a large amount of sand will accumulate on the pallet 104, resulting in the explosion-proof distribution box being unable to be placed on the pallet 104 normally, which will affect the detection of subsequent explosion-proof distribution boxes. Therefore, control the output shaft of the second motor 605 to drive the positioning block 606 and the pallet 104 to rotate together, so that a number of through holes 10401 on the pallet 104 coincide with a number of through holes 60701 on the ring plate 607. Control the output shaft of the second motor 605 to stop rotating. Under the continuous action of the vibration motor 4, the sand will continuously jump on the pallet 104 until it passes through the through hole 10401 and the through hole 60701 and falls onto the inclined plate 601, and then discharges from the guide plate 602 along the inclined plate 601, avoiding a large amount of sand remaining on the pallet 104 and affecting the subsequent detection of the performance of the explosion-proof distribution box.

[0069] When it is necessary to simulate the underwater environment to conduct waterproof detection on the explosion-proof distribution box, and the cylindrical barrel 5 and the annular telescopic cloth 402 form a relatively enclosed space, control the right-hand electric valve 504 to open, and the water in the water pipe enters the enclosed space from the T-shaped pipe 503. Wait until the water level in the enclosed space rises above the explosion-proof distribution box and submerges the explosion-proof distribution box in the water, then control the right-hand electric valve 504 to close and stop delivering water into the enclosed space, creating a soaking environment in the enclosed space to test the explosion-proof distribution box through the soaking environment. When the waterproof detection of the explosion-proof distribution box is completed, control the output shaft of the second motor 605 to drive the positioning block 606 and the pallet 104 to rotate together, so that a number of through holes 10401 on the pallet 104 coincide with a number of through holes 60701 on the ring plate 607. Control the output shaft of the second motor 605 to stop rotating, and let the water in the cylindrical barrel 5 drain from the through hole 10401 and the through hole 60701 onto the inclined plate 601, and then discharge from the guide plate 602 along the inclined plate 601.

[0070] It should be noted that by heating the cylindrical barrel 5 with the heater 512, the environment where the explosion-proof distribution box is at high temperature can be simulated.

[0071] It should be noted that when a number of slots 50301 are opened, the air in the conveying T-shaped pipe 503 will continuously discharge from a number of slots 50301, thereby blowing the sand in the storage box 502 to the surroundings, resulting in the sand being unable to enter the T-shaped pipe 503. However, the guide ring 509 will guide the air entering the T-shaped pipe 503, causing the downward-flowing air to flow towards the middle, and only a small amount of airflows out from a number of slots 50301, carrying a small amount of sand and moving it to the surroundings, avoiding the continuous flowing air discharging from a number of slots 50301 and blowing a large amount of sand to the surroundings, making the sand in the storage box 502 unable to enter the T-shaped pipe 503.

[0072] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit the protection scope of the present invention. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present invention can be modified or equivalently replaced without departing from the essence and scope of the technical solutions of the present invention.

Claims

1. A performance testing device for an explosion-proof distribution box, comprising a base plate (1); a plurality of shock-absorbing columns (2) distributed in a rectangular array are fixedly connected to the base plate (1); a mounting plate (3) is commonly fixedly connected to all the shock-absorbing columns (2); a plurality of vibration motors (4) are fixedly connected to the lower part of the mounting plate (3); the characteristics are: It also includes a barrel (5); a barrel (5) is fixedly connected to a mounting plate (3); a plurality of fixing seats (6) distributed in a ring array are fixedly connected to the upper portion of the inner ring surface of the barrel (5); each fixing seat (6) is rotatably connected to a striker (7) via a rotating shaft, and the shapes of the three strikers (7) are respectively blunt, single-conical and multi-conical; a pushing assembly for adjusting the angle of the striker (7) is connected to the lower portion of the inner ring surface of the barrel (5); a power assembly is connected to the mounting plate (3); a mounting plate (8) is connected to the power assembly; a rotating assembly for rotating with an explosion-proof distribution box is connected to the mounting plate (8); a swinging assembly for swinging with the explosion-proof distribution box is connected to the rotating assembly; an electric clamp (9) is connected to the swinging assembly; the power assembly is used to drive the mounting plate (8), the rotating assembly, the swinging assembly and the electric clamp (9) to move forward together; The swing assembly comprises a connecting column (306); the lower surface of the turntable (304) is fixedly connected to the connecting column (306); a universal shaft (307) is fixedly connected to the connecting column (306); a connecting plate (308) is fixedly connected to the universal shaft (307); an electric push rod three (309) is fixedly connected to the rear portion of the lower surface of the turntable (304); a connecting block (310) is fixedly connected to the telescopic portion of the electric push rod three (309); the connecting block (310) is fixedly connected to the lower end of the universal shaft (307); The invention also comprises an extension component, wherein the lower part of the second mounting plate (8) is connected to the extension component for closing the drum (5); the extension component comprises a fixing ring (401); the lower part of the second mounting plate (8) is fixedly connected to the fixing ring (401), and the fixing ring (401) is located outside the rotating disk (304); an annular telescopic cloth (402) is fixedly connected to the fixing ring (401); the lower end of the annular telescopic cloth (402) is fixedly connected to a limiting ring (403); a plurality of electric push rods (404) distributed in an annular array are fixedly connected to the second mounting plate (8), and the plurality of electric push rods (404) are located outside the fixing ring (401); the telescopic parts of the plurality of electric push rods (404) are fixedly connected to the limiting ring (403); an annular groove (5001) is provided on the upper surface of the drum (5), and the limiting ring (403) fits in the annular groove (5001).

2. A performance detection device for explosion-proof distribution box according to claim 1, characterized in that: The pushing assembly comprises an electric push rod 1 (101); a plurality of electric push rods 1 (101) distributed in a ring array are fixedly connected to the lower part of the inner ring surface of the barrel (5); the telescopic parts of the plurality of electric push rods 1 (101) are commonly fixedly connected to a ring (102); an inclined surface (10201) is provided on the ring (102), and the inclined surface (10201) contacts one side of three impact objects (7) facing the barrel (5); a plurality of electric push rods 2 (103) are fixedly connected to the inner bottom wall of the barrel (5); and the telescopic parts of the electric push rods 2 (103) are commonly rotatably connected to a support plate (104).

3. The performance detection device for explosion-proof distribution box according to claim 1 is characterized in that: The rotating assembly comprises a fixed plate (301); the upper surface of the second mounting plate (8) is fixedly connected to the fixed plate (301); the first motor (302) is fixedly connected to the fixed plate (301); the output shaft of the first motor (302) is fixedly connected to a spur gear (303); the middle part of the second mounting plate (8) is rotatably connected to a rotating disk (304); the upper part of the rotating disk (304) is fixedly connected to a gear ring (305); and the spur gear (303) is meshed with the gear ring (305).

4. The performance detection device for explosion-proof distribution box according to claim 1 is characterized in that: The fixing seat (6) and the impactor (7) are detachably connected, and the blunt, single-cone, or multi-cone impactor (7) can be replaced with an impactor (7) of a desired shape according to different performance detection effects required by the explosion-proof distribution box.

5. The performance detection device for explosion-proof distribution box according to claim 1 is characterized in that: The invention also comprises an environmental simulation component, wherein the upper part of the second mounting plate (8) is connected to an environmental simulation component for simulating a sandstorm or underwater environment; the environmental simulation component comprises a mounting frame (501); the upper part of the second mounting plate (8) is fixedly connected to the mounting frame (501), and the mounting frame (501) is located in front of the turntable (304); a storage box (502) is fixedly connected to the mounting frame (501); a T-shaped tube (503) is fixedly connected to the middle part of the storage box (502), and the T-shaped tube (503) is located in the annular telescopic cloth (402); a boss (50201) is arranged in the storage box (502); a plurality of slots (50301) distributed in an annular array are opened on the T-shaped tube (503); 1); a plurality of slots (50301) are located above the boss (50201); the left and right parts of the T-shaped tube (503) are each connected to an electric valve (504); a plurality of L-shaped brackets (505) distributed in a ring array are fixedly connected to the upper surface of the storage box (502); each L-shaped bracket (505) is fixedly connected to an electric push rod five (506); the telescopic parts of all the electric push rods five (506) are commonly fixedly connected to a fixing frame (507); the fixing frame (507) is fixedly connected to a cylinder one (508); the cylinder one (508) is slidably arranged on the T-shaped tube (503), and the cylinder one (508) blocks the plurality of slots (50301).

6. A performance detection device for explosion-proof distribution box according to claim 5, characterized in that: The environmental simulation component also includes a guide ring (509); the inner wall of the T-shaped tube (503) is fixedly connected to the guide ring (509), and the guide ring (509) is located above the plurality of slot holes (50301); an exhaust pipe (510) is embedded on the rotating disk (304); and a filter cloth (511) is fixedly connected to the inner wall of the exhaust pipe (510).

7. The performance detection device for explosion-proof distribution box according to claim 1 is characterized in that: It also includes a heater (512), and the drum (5) is provided with the heater (512).

8. A performance detection device for explosion-proof distribution box according to claim 7, characterized in that: The invention also comprises a sand discharge assembly, wherein the lower part of the round barrel (5) is connected to a sand discharge assembly for discharging sand; the sand discharge assembly comprises an inclined plate (601); the lower part of the inner annular surface of the round barrel (5) is fixedly connected to the inclined plate (601); a rectangular groove (5002) is provided at the front part of the round barrel (5); a guide plate (602) is fixedly connected to the outer side of the round barrel (5), and the guide plate (602) is located at the outer side of the rectangular groove (5002); a second cylinder (603) is fixedly connected to the middle part of the inclined plate (601); a circular plate (604) is fixedly connected to the inner annular surface of the second cylinder (603); the circular plate (604) The lower surface of the cylinder 2 (603) is fixedly connected to a motor 2 (605); the output shaft of the motor 2 (605) is fixedly connected to a positioning block (606); the positioning block (606) is plugged into the support plate (104); the support plate (104) is provided with a plurality of through holes 1 (10401); the outer side of the cylinder 2 (603) is fixedly connected to a ring plate (607), and the ring plate (607) and the support plate (104) are fitted with each other; the ring plate (607) is provided with a plurality of through holes 2 (60701), and the plurality of through holes 1 (10401) and the plurality of through holes 2 (60701) are staggered.

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