A split test box with thermal imaging function

Abstract

The invention relates to the technical field of test instruments, and discloses a split test box with thermal imaging function, comprising a split test box body and a control device; a test chamber, a high-voltage test device, a temperature test device and a transmission device are arranged inside the test box body; the high-voltage test device and the temperature test device are used in combination to carry out a comprehensive test on a sample to be tested; an infrared imager is arranged on the top of the test box body; the test device of the invention separates the test box body and the control mechanism, thereby improving the safety of the entire test process, and at the same time, the test box body can carry out a comprehensive test combining high pressure and ambient temperature, and the infrared imager can track the product temperature in real time throughout the whole process, generate a temperature camera image, more intuitively reflect the temperature change of the test product in the overall test process, provide more accurate epoxy resin test data, and be more conducive to evaluating the health status of the epoxy resin.

Description

Technical Field

[0001] The invention relates to the technical field of test instruments, and in particular to a split test box with thermal imaging function. Background Art

[0002] Epoxy resin is widely used in the field of electrical insulation due to its excellent electrical insulation performance, mechanical properties, corrosion resistance and other characteristics, such as: bushings, contact boxes, post insulators, insulating sleeves, etc. As a packaging material, it can effectively isolate electrical components from the complex external environment and improve the insulation performance of the equipment. However, the existing test for the health status of epoxy resin still remains at a single high-voltage surface flash test, and its measurement data can only reflect a limited number of epoxy resin properties. The existing test equipment cannot conduct a comprehensive test on the health status of epoxy resin by combining high voltage and ambient temperature factors, and it is also unable to detect the real-time temperature of epoxy resin, so that the health status of epoxy resin itself still restricts the reliability and service life of the equipment. In view of this, the inventor has made a new invention. Summary of the invention

[0003] The purpose of the present invention is to provide a split test box with thermal imaging function in view of the deficiencies of the prior art, which has the characteristics of diversified test functions and high test accuracy.

[0004] To achieve the above-mentioned purpose, the present invention is a split test box with thermal imaging function, including a split test box body and a control device; a test chamber, a high-voltage test device, a temperature test device and a transmission device are arranged inside the test box body; a test platform for placing the sample to be tested is arranged inside the test chamber, and the transmission device extends into the test chamber and is connected to the test platform in a transmission manner; the high-voltage test device is arranged above the test platform, and the high-voltage test device is used in conjunction with the temperature test device to perform a comprehensive test on the sample to be tested; the high-voltage test device, the temperature test device and the transmission device are all electrically connected to the control device; an infrared imager is arranged on the top of the test box body.

[0005] Preferably, the test platform is provided with a plurality of sample clamping members, the sample clamping members include a clamping seat, a plurality of support columns are fixedly arranged below the clamping seat, the support columns are movably connected to the test platform, and a buffer spring is sleeved on the outside of the support columns, one end of the buffer spring abuts the test platform, and the other end abuts the clamping seat; the clamping seat is movably connected with an adjusting screw, the middle part of the adjusting screw is threadedly connected with a first clamping block, and the end of the adjusting screw is threadedly connected with a second clamping block.

[0006] Preferably, an arc groove is provided at the front end of the clamping seat, and the arc groove cooperates with the clamping block to clamp the sample to be tested; a limiting slide groove is provided in the middle of the clamping seat, and the first clamping block and the second clamping block are both arranged in the limiting slide groove.

[0007] Preferably, the transmission device is arranged below the test chamber, and the transmission device includes a machine platform and a lifting cylinder arranged on the machine platform. The machine platform is movably connected with a lifting platform, and the top of the lifting platform extends into the test chamber. The lifting cylinder drives the lifting platform to move up and down, and the test platform is arranged at the top of the lifting platform.

[0008] Preferably, the test platform is provided with a gear a; the transmission device also includes a rotation drive device for driving the test platform to rotate, the rotation drive device includes a gear b and a first drive motor, the first drive motor is arranged on the lifting platform and the first drive motor drives the gear b to rotate, and the gear b drives the gear a to rotate.

[0009] Preferably, the transmission device also includes a point sampling device for driving the test platform to move in an array, the point sampling device is arranged on the lifting platform, and the point sampling device includes a mounting frame, a longitudinal drive component and a transverse drive component, and the longitudinal drive component and the transverse drive component cooperate to drive the test platform to move in an array.

[0010] Preferably, the high-voltage testing device includes a support frame and a high-voltage needle, and the support frame is also equipped with a linear drive device for driving the high-voltage needle to run along the X-axis direction; the linear drive device includes a linear module, a rack and a second drive motor, the linear module is installed on the support frame, the rack is installed on the linear module and one end of the rack is connected to the high-voltage needle, and the second drive motor is meshed with the rack through a gear.

[0011] Preferably, the high-pressure needle is externally sleeved with a needle holder, and the needle holder includes a positioning sleeve and a conical sleeve, the positioning sleeve is provided with an external threaded portion, and the front end of the positioning sleeve is movably connected with a plurality of movable plates, adjacent movable plates are movably connected by a first spring and the plurality of movable plates form a conical positioning tube; the conical sleeve is provided with an internal threaded portion adapted to the external threaded portion, the conical sleeve is sleeved on the outside of the positioning sleeve and can drive the movable plate to fix the high-pressure needle.

[0012] Preferably, the temperature testing device includes an air duct and a circulating fan, a heater and an evaporator which are sequentially arranged inside the air duct; an air inlet is arranged at one end between the air duct and the test chamber, and an air outlet is arranged at the other end, the circulating fan is arranged opposite to the air inlet, and the heater and evaporator are arranged between the air inlet and the air outlet.

[0013] Preferably, an air flow inlet is provided at the bottom of the circulating fan, an air flow outlet is provided on one side of the circulating fan, the air flow inlet is provided with a first filter device, and the air flow outlet is provided with a second filter device; the first filter device includes a rotating disk and a plurality of dust removal blades arranged on the outer periphery of the rotating disk; the second filter device is a filter screen.

[0014] Beneficial effects: Compared with the prior art, the present invention is a split test box with thermal imaging function. The test device of the present invention separates the test box body and the control mechanism to improve the safety of the entire test process. On the other hand, the present invention realizes the combination of a high-voltage test device and a temperature test device. The test box body can carry out a comprehensive test combining high pressure and ambient temperature, and an infrared imager is installed on the top of the test box body to detect the local temperature of a single product and form a thermal image. The infrared imager tracks the product temperature in real time throughout the whole process and generates a temperature camera image, which more intuitively reflects the temperature changes of the test product in the overall test process, provides more accurate epoxy resin test data, and is more conducive to evaluating the health status of epoxy resin. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0016] Figure 2 It is a schematic diagram of the test chamber structure of the present invention.

[0017] Figure 3 It is a schematic diagram of the structure of the temperature test device of the present invention.

[0018] Figure 4 It is a schematic structural diagram of the transmission device and the high-voltage testing device of the present invention.

[0019] Figure 5 It is a schematic diagram of the structure of the sample holder of the present invention.

[0020] Figure 6 It is a schematic diagram of the structure of the needle holder of the present invention.

[0021] Figure 7 It is a schematic diagram of the top view of the needle holder of the present invention.

[0022] Figure 8 It is a schematic diagram of the structure of the sampling point device of the present invention.

[0023] Fig. 9 It is a schematic structural diagram of the lateral driving device of the present invention.

[0024] Fig.10 It is a schematic diagram of the structure of the circulating fan of the present invention.

[0025] Fig.11 It is a schematic structural diagram of the first filtering device of the present invention.

[0026] Fig.12 It is a schematic structural diagram of the automatic dust removal device of the present invention.

[0027] Reference numerals include:

[0028] Test box body--1, infrared imager--11, control device--2, test chamber--3, test platform--31, sample clamp--32, clamping seat--321, support column--322, buffer spring--323, adjusting screw--324, first clamping block--325, second clamping block--326, arc groove--327, limiting slide groove--328, gear a--33, rotation drive device--34, gear b--341, first drive motor--342, sampling device--35, mounting frame--351, first Slideway--3511, longitudinal drive assembly--352, first movable disk--3521, third drive motor--3522, drive roller--3523, first bending groove--3524, connecting column--3526, transverse drive assembly--353, second movable disk--3531, drive cylinder--3532, second slideway--3533, high pressure test device--4, support frame--41, high pressure needle--42, linear drive device--43, linear module--431, rack--432, second drive motor--433, Temperature test device--5, air duct--51, circulating fan--52, air flow inlet--521, air flow outlet--522, heater--53, evaporator--54, air inlet--55, air outlet--56, transmission device--6, machine table--61, lifting cylinder--62, lifting table--63, needle holder--7, positioning sleeve--71, external threaded part--711, movable plate--712, first spring--713, tapered sleeve--72, first filter device--8, rotating disk--81, dust removal fan blade--82, The third slide groove -- 821, the electromagnet -- 822, the second spring -- 823, the automatic dust collecting device -- 83, the dust collecting bin -- 831, the dust collecting chamber -- 832, the dust collecting channel -- 833, the telescopic plate -- 834, the third spring -- 835, the magnet a -- 836, the magnet b -- 837, the fourth spring -- 838, the dust pushing assembly -- 84, the cylinder body -- 841, the piston -- 842, the push plate -- 843, the push block -- 844, the hydraulic chamber -- 845, the oil filling port -- 846, the baffle -- 847, the second filtering device -- 9. DETAILED DESCRIPTION

[0029] The following is combined with Figures 1 to 12 The present invention will be described in detail.

[0030] The present invention is a split test box with thermal imaging function, comprising a split test box body 1 and a control device 2; a test chamber 3, a high-voltage test device 4, a temperature test device 5 and a transmission device 6 are arranged inside the test box body 1; a test platform 31 for placing a sample to be tested is arranged inside the test chamber 3, and the transmission device 6 extends into the test chamber 3 and is transmission-connected to the test platform 31; the high-voltage test device 4 is arranged above the test platform 31, and the high-voltage test device 4 is used in conjunction with the temperature test device 5 to perform a comprehensive test on the sample to be tested; the high-voltage test device 4, the temperature test device 5 and the transmission device 6 are all electrically connected to the control device 2; an infrared imager 11 is arranged on the top of the test box body 1. When the test box is in use, first clamp multiple samples on the test platform 31, close the sealed door of the test box, manually go to the control device 2, turn on the temperature test device 5, start the temperature test, and control the height of the test bench through the transmission device 6. The test platform 31 is close to the high-voltage test device 4. The high-voltage needle 42 of the high-voltage test device 4 outputs a 50KV high voltage to simulate the high-voltage lightning test. The high-voltage lightning test only tests one sample at a time. After the single sample test is completed, the test platform 31 rotates to the next sample until the test is completed. During the entire test process, the infrared imager 11 on the top of the test box body 1 is also started to record the local temperature map of each product in real time, and display and record it on the control device 2 for the staff to watch.

[0031] The present invention is mainly used for the test of epoxy resin. Compared with the traditional epoxy resin testing device, the present invention has the following advantages: 1. The test box and the control mechanism are separated to improve the safety of the entire test process and effectively avoid the negative impact of the high-voltage test environment on the health of the workers; 2. The present invention realizes the combination of the high-voltage test device and the temperature test device. The test box can simulate a comprehensive test combining lightning strikes and ambient temperature, which is more conducive to evaluating the health status of epoxy resin; 3. An infrared imager is installed on the top of the test box body. The infrared imager tracks the product temperature in real time throughout the test and generates a temperature camera image, which more intuitively reflects the temperature changes of the test product in the overall test process and provides more accurate epoxy resin temperature test data.

[0032] In the present technical solution, the test platform 31 is provided with a plurality of sample clamping members 32, and the sample clamping members 32 include a clamping seat 321, and a plurality of support columns 322 are fixedly arranged below the clamping seat 321, and the support columns 322 are movably connected to the test platform 31, and a buffer spring 323 is sleeved on the outside of the support columns 322, and one end of the buffer spring 323 abuts the test platform 31, and the other end abuts the clamping seat 321; the clamping seat 321 is movably connected with an adjusting screw 324, and the middle part of the adjusting screw 324 is threadedly connected with a first clamping block 325, and the end of the adjusting screw 324 is threadedly connected with a second clamping block 326.

[0033] Furthermore, an arc groove 327 is provided at the front end of the clamping seat 321, and the arc groove 327 cooperates with the clamping block to clamp the sample to be tested; a limiting slide groove 328 is provided in the middle of the clamping seat 321, and the first clamping block 325 and the second clamping block 326 are both arranged in the limiting slide groove 328.

[0034] When placing the sample, place the sample between the arc groove 327 and the clamping block, rotate the adjusting screw 324, and the clamping block moves relative to the arc groove 327 to clamp and fix the sample. The technical solution sets the first clamping block 325 and the second clamping block 326 to clamp and fix small samples and large-sized samples respectively. The limiting slide groove 328 in the middle of the clamping seat 321 limits the position of the clamping block to maintain the stability of the clamping piece. The sample clamping piece 32 of the technical solution fixes the sample by means of a threaded knob. The fixing method is convenient and fast, and has a wide range of applications. It can be used to fix samples of different sizes; secondly, a buffer spring 323 is provided at the bottom of the clamping seat 321, so that the clamping seat 321 has a certain buffer space. Even if the test platform 31 accidentally hits the high-pressure needle 42, it can be quickly bounced off, thereby extending the service life of the overall equipment.

[0035] Preferably, the transmission device 6 is arranged below the test chamber 3, and the transmission device 6 includes a machine platform 61 and a lifting cylinder 62 arranged on the machine platform 61, the machine platform 61 is movably connected with a lifting platform 63, the top of the lifting platform 63 passes through the bottom of the test chamber 3 and extends into the interior, the lifting cylinder 62 drives the lifting platform 63 to move up and down, and the test platform 31 is arranged on the top of the lifting platform 63. The transmission device 6 can be used to adjust the height of the test platform 31 to assist in completing the high-voltage test.

[0036] After completing a high-voltage test, the test platform 31 needs to be driven by a driving device to move to the next test sample. There are the following multiple embodiments for the driving method of the test platform 31 .

[0037] As an embodiment, when the rotation drive is adopted, the test platform 31 is provided with a gear a 33; the transmission device 6 also includes a rotation drive device 34, the rotation drive device 34 includes a gear b 341 and a first drive motor 342, the first drive motor 342 is arranged on the lifting platform 63 and the first drive motor 342 drives the gear b 341 to rotate, the gear b 341 drives the gear a 33 to rotate, and the test platform 31 is driven to rotate and switch to the next test sample. In this embodiment, the structure of the drive device is relatively simple, easy to control and low-cost, and the first drive motor 342 is arranged outside the test chamber 3, and will not be affected by the test environment inside the test chamber 3, which effectively prolongs its service life.

[0038] As another embodiment, an array drive can also be adopted. The transmission device 6 also includes a sampling device 35 for driving the test platform 31 to move in an array. The sampling device 35 is arranged on the lifting platform 63. The sampling device 35 includes a mounting frame 351, a longitudinal driving component 352 and a transverse driving component 353. The longitudinal driving component 352 and the transverse driving component 353 cooperate to drive the test platform 31 to move in an array. This array movement refers to: Figure 8 The samples are arranged as shown in the partial enlarged view. The test platform 31 arranged in a square shape first tests the samples in sequence starting from the first sample in the first column under the action of the longitudinal drive component 352. When the test of the first sample is completed, the second sample in the first column is tested next until the test of the samples in the first column is completed. Then, the transverse drive component 353 is used to switch to the last sample in the second column and test upwards in sequence. After the test of the second column is completed, it is switched to the third column until all are completed. This embodiment can make full use of the spatial position of the test platform 31 and place up to dozens of samples at a time, which can significantly improve the test efficiency, especially for products that need large-scale testing, and can compress a lot of test time. Secondly, the test data of samples tested in the same batch are more accurate.

[0039] In the above embodiment, the longitudinal drive assembly 352 includes a first movable disk 3521, a third drive motor 3522 and a drive roller 3523 that is transmission-connected to the third drive motor 3522. The third drive motor 3522 is connected to the drive roller 3523 via a gear transmission. The third drive motor 3522 is also arranged on the lifting platform 63 and is outside the test chamber 3 to prevent the test environment inside the test chamber 3 from affecting the service life of the third drive motor 3522. The outer wall of the driving roller 3523 is inclined at one end toward the other end and is provided with a first bending groove 3524 and a second bending groove (the second bending groove is on the other side of the driving roller 3523 and is not marked in the figure), the first bending groove 3524 and the second bending groove are connected end to end, and the first bending groove 3524 and the second bending groove are composed of a plurality of small straight grooves; the mounting frame 351 is provided with a first sliding groove 3511 for accommodating the first movable disk 3521; the first movable disk 3521 is connected to the transverse driving assembly 353 and the bottom of the first movable disk 3521 is fixedly connected with a connecting column 3526, and the connecting column 3526 passes through the mounting frame 351 and is movably connected to the bending groove. When the third driving motor 3522 drives the driving roller 3523 to rotate, the connecting column 3526 slides in the bending groove, and the inclined bending groove gradually drives the connecting column 3526 to move in the X-axis direction. Each bending point represents switching to a sample. At this time, the test platform 31 stops. After the test is completed, it will continue to start until all samples in one column are tested. Then the horizontal driving component 353 starts and switches to the second column of the test platform 31. The connecting column 3526 gradually moves back along the second bending groove of the roller for testing, and reciprocates in this way.

[0040] The transverse drive assembly 353 includes a second movable disk 3531 and a plurality of drive cylinders 3532. The second movable disk 3531 is integrally formed with the first movable disk 3521. A second slide groove 3533 is provided in the middle of the second movable disk 3531. The test platform 31 is slidably connected to the second slide groove 3533. The plurality of small drive cylinders 3532 are arranged on the second movable disk 3531 and can drive the test platform 31 to move. When the rows need to be switched, the small drive cylinders 3532 drive the test platform 31 to move along the second slide groove 3533.

[0041] Preferably, the high-voltage test device 4 includes a support frame 41 and a high-voltage needle 42, and the support frame 41 is also equipped with a linear drive device 43 for driving the high-voltage needle 42 to run along the X-axis direction; the linear drive device 43 includes a linear module 431, a rack 432 and a second drive motor 433, the linear module 431 is installed on the support frame 41, the rack 432 is installed on the linear module 431 and one end of the rack 432 is connected to the high-voltage needle 42, and the second drive motor 433 is meshed with the rack 432 through a gear. When the displacement of the high-voltage needle 42 in the X-axis direction needs to be adjusted, the rack 432 is driven by the second drive motor 433 to slide along the linear module 431. The second drive motor 433 of the present technical solution is installed on the machine table 61, and the machine table 61 is arranged outside the test chamber 3, which is also conducive to extending the service life of the second drive motor 433.

[0042] In the present technical solution, the high-pressure needle 42 is externally sleeved with a needle holder 7, and the needle holder 7 includes a positioning sleeve 71 and a conical sleeve 72, the positioning sleeve 71 is provided with an external threaded portion 711, and the front end of the positioning sleeve 71 is movably connected with a plurality of movable plates 712, and adjacent movable plates 712 are movably connected by a first spring 713, and the plurality of movable plates 712 form a conical positioning tube; when installing the high-pressure needle 42, first put the high-pressure needle 42 into the middle of the positioning sleeve 71, and then the conical sleeve 72 is sleeved on the outside of the positioning sleeve 71 and is threadedly connected to the external threaded portion 711 of the positioning sleeve 71 through the internal threaded portion. During the process of tightening the thread, the conical positioning sleeve 71 uses the conical end to gradually squeeze the plurality of movable plates 712, so that the front ends of the plurality of movable plates 712 cooperate with each other and are gradually tightened until the high-pressure needle 42 is completely fixed.

[0043] Compared with other fixing methods, the needle holder 7 of the present technical solution has the following advantages: ① The movable plates are connected by the first spring, so that the conical positioning tube composed of multiple movable plates can be gradually tightened and has a buffering effect. When the squeezing force of the movable plate on the high-pressure needle is too large, the first spring can be used to buffer the force of the movable plate, and it is not easy to clamp the needle; ② When the high-pressure needle needs to be removed, the conical sleeve is screwed outward, and the movable plate automatically loosens the high-pressure needle under the action of the first spring, without touching the needle, which is safer.

[0044] As an embodiment, the temperature testing device 5 includes an air duct 51 and a circulating fan 52, a heater 53 and an evaporator 54 which are sequentially arranged inside the air duct 51; an air inlet 55 is arranged at one end between the air duct 51 and the test chamber 3, and an air outlet 56 is arranged at the other end; the circulating fan 52 is arranged opposite to the air inlet 55, and the heater 53 and the evaporator 54 are arranged between the air inlet 55 and the air outlet 56; the circulating fan 52 guides the airflow to enter the test chamber 3 from the air inlet 55 and then flow back to the air duct 51 from the air outlet 56, and forms cold air and hot air after passing through the heater 53 and the evaporator 54 respectively, and forms an airflow circulation between the air duct 51 and the test chamber 3 to start the temperature test.

[0045] As an embodiment, the circulation fan 52 is provided with an airflow inlet 521 at the bottom, and an airflow outlet 522 at one side of the circulation fan 52. The circulation fan 52 includes a fourth drive motor, a wind wheel, and a volute, wherein the wind wheel is arranged inside the volute and is transmission-connected to the fourth drive motor, the airflow inlet 521 is arranged at the bottom of the volute, the airflow outlet 522 is arranged at the side of the volute, and the airflow outlet 522 faces the air inlet 55. When the circulation fan 52 is started, the wind wheel inside the volute rotates, driving the airflow to flow in from the airflow inlet 521 and out through the airflow outlet 522.

[0046] To further improve the technical solution, the airflow inlet 521 is provided with a first filter device 8, and the airflow outlet 522 is provided with a second filter device 9; the first filter device 8 includes a rotating disk 81 and a plurality of dust removal blades 82 arranged on the outer periphery of the rotating disk 81; the second filter device 9 is a filter screen. The first filter device 8 and the second filter device 9 ensure that the airflow flowing into the test chamber 3 is clean and clear, and the high-pressure test process will not be affected by dust and cause safety hazards.

[0047] As a preferred example, Fig.11 As shown, the dust removal blade 82 is provided with a third slide slot 821, and an electromagnet 822 and a second spring 823 are provided inside the third slide slot 821. The electromagnet 822 is slidably provided in the third slide slot 821, and one end of the second spring 823 is connected to the electromagnet 822, and the other end is connected to the inner wall of the third slide slot 821. When the circulating fan 52 is started, and the airflow passes through the airflow inlet 521, the airflow pushes the blade to rotate. Under the action of centrifugal force, the electromagnet 822 gradually squeezes the second spring 823 to move from the inner end of the slide slot to the outer end, and absorbs metal impurities contained in the airflow. After the blade stops rotating, the electromagnet 822 is reset under the action of the second spring 823.

[0048] To further improve the technical solution, the first filtering device 8 is also provided with an automatic dust collecting device 83, and the automatic dust collecting device 83 includes a dust collecting bin 831. A dust collecting chamber 832 is opened in the middle of the rotating disk 81, and the dust collecting chamber 832 is connected to the dust collecting bin 831 through a dust collecting channel 833. A telescopic plate 834 is arranged inside the dust collecting chamber 832, and a third spring 835 is installed at the bottom of the telescopic plate 834. A magnet a 836 is also installed at the bottom of the telescopic plate 834, and a magnet b 837 that can interact with the magnet a 836 is arranged at the bottom of the dust collecting chamber 832; a baffle 847 is arranged on one side of the dust collecting chamber 832 and a fourth spring 838 is connected to the rear end of the baffle 847, and the baffle 847 covers the opening of the dust collecting channel 833, and a dust pushing assembly 84 is arranged on the other side of the dust collecting chamber 832.

[0049] The dust pushing assembly 84 includes a cylinder body 841 and a piston 842 slidably connected to the cylinder body 841, the piston 842 is connected to a push plate 843, the dust pushing assembly 84 includes a push block 844 and a hydraulic chamber 845, the push block 844 is arranged at the bottom of the telescopic plate 834, the hydraulic chamber 845 is connected to the cylinder body 841, and an oil filling port 846 is arranged at one end of the cylinder body 841 away from the hydraulic chamber 845, and the piston 842 separates the oil filling port 846 and the hydraulic chamber 845.

[0050] The working principle of the automatic dust collecting device 83 of the present technical solution is as follows: when the electromagnet 822 is powered off, the adsorbed dust falls into the dust collecting chamber 832, and the dust in the dust collecting chamber 832 gradually accumulates. Under the action of gravity, the telescopic plate 834 gradually moves downward. When the downward displacement reaches or exceeds one-half of the distance from the bottom, the magnet a 836 is adsorbed by the magnet b 837, and the telescopic plate 834 is rapidly adsorbed and moved downward. The push block 844 at the bottom of the telescopic plate 834 is also rapidly inserted into the hydraulic cavity 845, pushing the oil in the hydraulic cavity 845 back into the cylinder 841, and the piston 842 is pushed forward. The push plate 843 quickly pushes the baffle 847 with the dust, and the dust falls into the dust collecting channel 833 and then falls into the dust collecting bin 831 to be collected. Since the magnetic force is inversely proportional to the square of the distance, the above dust pushing action is completed in a very short time. After the dust pushing action is completed, oil is transported to the inside of the cylinder 841 through the oil filling port 846 to drive the piston 842 to return to its original position. At this time, the oil in the hydraulic chamber 845 flows back, and the push block 844 drives the telescopic plate 834 to return to its original position.

[0051] The automatic dust removal device of the present application can realize automatic dust collection without manual cleaning. Secondly, the dust collecting bin 831 is connected to the bottom of the rotating disk 81, which is easy to disassemble for dust removal and is more convenient to use.

[0052] The above contents are only preferred embodiments of the present invention. For ordinary technicians in this field, according to the concept of the present invention, there will be changes in the specific implementation methods and application scopes. The content of this specification should not be understood as limiting the present invention.

Claims

1. A split test box with thermal imaging function, characterized in that: The invention comprises a test box body (1) and a control device (2) which are arranged separately; the test box body (1) is provided with a test chamber (3), a high-voltage test device (4), a temperature test device (5) and a transmission device (6); the test chamber (3) is provided with a test platform (31) for placing a sample to be tested; the transmission device (6) extends into the test chamber (3) and is in transmission connection with the test platform (31); the high-voltage test device (4) is arranged above the test platform (31), and the high-voltage test device (4) and the temperature test device (5) are used in combination to perform a comprehensive test on the sample to be tested; the high-voltage test device (4), the temperature test device (5) and the transmission device (6) are all electrically connected to the control device (2); an infrared imager (11) is arranged on the top of the test box body (1); The high-voltage test device (4) comprises a support frame (41) and a high-voltage needle (42); the support frame (41) is also equipped with a linear drive device (43) for driving the high-voltage needle (42) to move along the X-axis direction; The linear drive device (43) comprises a linear module (431), a rack (432) and a second drive motor (433); the linear module (431) is mounted on the support frame (41); the rack (432) is mounted on the linear module (431) and one end of the rack (432) is connected to the high-voltage needle (42); and the second drive motor (433) is meshed with the rack (432) via a gear; The temperature test device (5) comprises an air duct (51) and a circulating fan (52), a heater (53) and an evaporator (54) which are sequentially arranged inside the air duct (51); an air inlet (55) is arranged at one end between the air duct (51) and the test chamber (3), and an air outlet (56) is arranged at the other end; the circulating fan (52) is arranged opposite to the air inlet (55), and the heater (53) and the evaporator (54) are arranged between the air inlet (55) and the air outlet (56).

2. A split test box with thermal imaging function according to claim 1, characterized in that: The test platform (31) is provided with a plurality of sample clamping members (32), wherein the sample clamping members (32) include a clamping seat (321), a plurality of support columns (322) are fixedly provided below the clamping seat (321), the support columns (322) are movably connected to the test platform (31), and a buffer spring (323) is sleeved on the outside of the support columns (322), one end of the buffer spring (323) abuts against the test platform (31), and the other end abuts against the clamping seat (321); the clamping seat (321) is movably connected with an adjusting screw (324), the middle part of the adjusting screw (324) is threadedly connected with a first clamping block (325), and the end of the adjusting screw (324) is threadedly connected with a second clamping block (326).

3. A split test box with thermal imaging function according to claim 2, characterized in that: The front end of the clamping seat (321) is provided with an arc groove (327), and the arc groove (327) cooperates with the clamping block to clamp the sample to be tested; the middle part of the clamping seat (321) is provided with a limiting sliding groove (328), and the first clamping block (325) and the second clamping block (326) are both arranged in the limiting sliding groove (328).

4. The split test box with thermal imaging function according to claim 1, characterized in that: The transmission device (6) is arranged below the test chamber (3), and the transmission device (6) comprises a machine platform (61) and a lifting cylinder (62) arranged on the machine platform (61). The machine platform (61) is movably connected to a lifting platform (63), and the top end of the lifting platform (63) extends into the test chamber (3). The lifting cylinder (62) drives the lifting platform (63) to move up and down, and the test platform (31) is arranged on the top end of the lifting platform (63).

5. A split-type test box with thermal imaging function according to claim 4, characterized in that: The test platform (31) is provided with a gear a (33); the transmission device (6) also includes a rotation drive device (34) for driving the test platform (31) to rotate, the rotation drive device (34) includes a gear b (341) and a first drive motor (342), the first drive motor (342) is arranged on the lifting platform (63) and the first drive motor (342) drives the gear b (341) to rotate, and the gear b (341) drives the gear a (33) to rotate.

6. The split test box with thermal imaging function according to claim 4, characterized in that: The transmission device (6) also includes a sampling device (35) for driving the test platform (31) to move in an array. The sampling device (35) is arranged on the lifting platform (63). The sampling device (35) includes a mounting frame (351), a longitudinal drive component (352) and a transverse drive component (353). The longitudinal drive component (352) and the transverse drive component (353) cooperate to drive the test platform (31) to move in an array.

7. The split-type test box with thermal imaging function according to claim 1, characterized in that: The high-pressure needle (42) is externally sleeved with a needle holder (7), and the needle holder (7) comprises a positioning sleeve (71) and a conical sleeve (72). The positioning sleeve (71) is provided with an external threaded portion (711), and a front end of the positioning sleeve (71) is movably connected with a plurality of movable plates (712), and adjacent movable plates (712) are movably connected via a first spring (713), and the plurality of movable plates (712) form a conical positioning tube; the conical sleeve (72) is provided with an internal threaded portion that matches the external threaded portion (711), and the conical sleeve (72) is sleeved on the outside of the positioning sleeve (71) and can drive the movable plate (712) to fix the high-pressure needle (42).

8. The split-type test box with thermal imaging function according to claim 1, characterized in that: The circulating fan (52) is provided with an air flow inlet (521) at the bottom, and an air flow outlet (522) is provided at one side of the circulating fan (52); the air flow inlet (521) is provided with a first filter device (8), and the air flow outlet (522) is provided with a second filter device (9); the first filter device (8) comprises a rotating disk (81) and a plurality of dust removal blades (82) arranged on the outer periphery of the rotating disk (81); and the second filter device (9) is a filter screen.

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