Intelligent monitoring equipment and monitoring method for salt spray corrosion

Abstract

The invention aims to provide the intelligent salt spray corrosion monitoring equipment which is compact in structure and capable of regularly extracting salt spray to visually detect the corrosion degree and the monitoring method. The device comprises a test box, a control box arranged on one side of the test box and used for controlling the salt mist precipitation amount, two sets of cleaning detection assemblies arranged on one side of the test box and used for detecting the corrosion effect, and a salt mist buffering assembly arranged on the rear side of the test box and used for extracting salt mist, and the test box communicates with the control box; one end of the test box is rotatably connected with a sealing cover, the two cleaning detection assemblies are fixedly connected to the sealing cover, the test box forms a test cavity for placing instruments, one end of the salt mist buffer storage assembly is connected with the sealing cover, the other end of the salt mist buffer storage assembly is communicated with the test cavity, and the salt mist buffer storage assembly is connected with the salt mist buffer storage assembly. The front side of the test box is provided with a grating detection piece for detecting the amount of saline water. The invention is applied to the technical field of salt spray corrosion monitoring equipment.

Description

Technical Field

[0001] The present invention relates to the technical field of salt spray corrosion monitoring equipment, and in particular to an intelligent salt spray corrosion monitoring equipment and a monitoring method. Background Art

[0002] The purpose of the salt spray test is to use the artificial simulated salt spray environment conditions created by the salt spray test equipment to evaluate the corrosion resistance of products; the salt spray test chamber uses the method of salt spray corrosion to detect the corrosion resistance reliability of the tested samples respectively. The technical parameters of the salt spray test: the amount of salt water freely falling on the product is the salt spray deposition rate, and the salt spray deposition rate determines the accuracy of the entire test. The salt spray deposition rate is mainly determined by the spray air pressure, and the spray air pressure is directly proportional to the salt spray deposition rate. Therefore, the key control points of the entire test are the salt spray deposition rate and the spray air pressure.

[0003] In the traditional method, a graduated cylinder is placed in the salt spray chamber, and after the test is completed, the amount of salt spray in the graduated cylinder is visually inspected by humans. The salt spray deposition rate is generally (1-2) ml / (h·80 cm²). This results in the inability to monitor the salt spray deposition rate in real time, and after the deposition rate exceeds the specified value, the test becomes inaccurate, leading to the need for repeated verification of the test, resulting in waste of resources and increased costs. During the detection process, precipitated salts will adhere to the object, increasing the difficulty of detecting the corrosion degree of the object and reducing the detection efficiency. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to overcome the deficiencies of the prior art and provide an intelligent salt spray corrosion monitoring equipment and a monitoring method with a compact structure that can regularly extract salt spray for visual inspection of the corrosion degree.

[0005] The technical solution adopted by the present invention is: the present invention includes a test chamber, a control box disposed on one side of the test chamber for controlling the amount of salt spray precipitation, two cleaning and detection components disposed on one side of the test chamber for detecting the corrosion effect, and a salt spray buffer component disposed at the rear of the test chamber for extracting salt spray. The test chamber is communicated with the control box. One end of the test chamber is rotatably connected with a sealing cover. The two cleaning and detection components are both fixedly connected to the sealing cover. The test chamber forms a test cavity for placing instruments. One end of the salt spray buffer component is connected to the sealing cover, and the other end of the salt spray buffer component is communicated with the test cavity. A grating detector for detecting the amount of salt water is disposed on the front side of the test chamber.

[0006] Further, a hook is formed at the rear side of the test chamber. The salt spray buffer assembly includes a storage tank, a suction pump, a first connecting pipe, and a second connecting pipe. The storage tank is detachably connected to the hook. A connection port is formed at the upper part of the storage tank. One end of the suction pump communicates with the connection port, the other end of the suction pump communicates with the first connecting pipe, the first connecting pipe communicates with the sealing cover, one end of the second connecting pipe communicates with the bottom of the storage tank, and the other end of the second connecting pipe communicates with the test chamber.

[0007] Further, the cleaning and detection assembly includes a connection box. A slot is formed in the connection box. A movable door group for opening and closing the slot is arranged on one side of the connection box. A camera detection group for photographing the corrosion degree of an object is slidably connected to the upper part of the connection box. Two object moving groups for adjusting the position of the object are arranged at the bottom of the connection box. Two first conveying pipes for spraying water mist and two second conveying pipes for spraying dry gas are formed in the middle of the connection box. Each of the first conveying pipes and the second conveying pipes is correspondingly arranged above the corresponding object moving group.

[0008] Further, the movable door group includes a door body driving device, a sliding door, and a sliding rack. The door body driving device is fixedly connected to the top of the connection box. The sliding door is slidably connected in the test chamber. The sliding rack is fixedly connected to the upper part of the sliding plate. A first driving gear engaged with the sliding rack is arranged at the movable end of the door body driving device.

[0009] Further, a second rack is formed at the top of the connection box. The camera detection group includes a sliding plate, a telescopic driving device, a displacement driving device, a shield, and a detection camera. The sliding plate is slidably matched with the connection box. The telescopic driving device is fixedly connected to the middle of the sliding plate. The displacement driving device is fixedly connected to one side of the sliding plate. The movable end of the displacement driving device is engaged with the second rack. An installation seat is arranged at the movable end of the telescopic driving device. The shield is fixedly connected to the installation seat. The detection camera is fixedly connected to the installation seat. The detection camera is arranged inside the shield.

[0010] Further, the object moving group includes a displacement adjusting device fixedly connected to the connection box, a transmission lead screw connected to the movable end of the displacement adjusting device for driving the object to displace, the other end of the transmission lead screw is rotatably connected to the test chamber, sliding rods for supporting the object are arranged on both sides of the transmission lead screw, the other end of each sliding rod is fixedly connected to the test chamber, a basket is threadedly connected to each rotating lead screw, and each basket is slidably matched with the corresponding two sliding rods.

[0011] Further, a spray member for spraying salt mist is provided in the middle of the test chamber. The output end of the spray member is detachably connected to a diversion member for evenly distributing the salt mist. Collectors for collecting salt mist are formed on both sides of the spray member. A flared opening is formed at the upper part of each collector. A collection pipe connected to the output ends of the two collectors is provided on the front side of the test chamber. A temperature sensor for detecting temperature is provided on the side wall of the test chamber.

[0012] Further, an overflow water tank for sealing cooperation with the sealing cover is provided at the upper part of the test chamber. The overflow water tank is provided with a storage tank for accommodating pure water. A sealing bump for cooperating with the storage tank is formed at the bottom of the sealing cover.

[0013] Further, the control box includes a machine base, a control console, a salt mist generator, a salt mist input pipe, and a pressure regulating device. The control console is arranged on the upper part of the machine base. The salt mist generator is arranged at the rear side of the machine base. One end of the salt mist input pipe is communicated with the salt mist generator, and the other end of the salt mist input pipe is communicated with the test chamber. The pressure regulating device is arranged on the front side of the machine base. The pressure regulating device is electrically connected to the control console and is used for controlling the output rate of the salt mist generator.

[0014] Further, the monitoring method includes the following steps:

[0015] S1. Open the sealing cover, place the instrument in the basket, and set the salt mist corrosion monitoring interval, test temperature, and test humidity on the control console.

[0016] S2. Start the salt mist test. The salt mist generator evenly distributes salt mist in the test chamber through the spray member. At this time, the temperature sensor monitors the temperature in the test chamber in real time.

[0017] S3. After reaching the preset salt mist corrosion monitoring interval, the extraction pump extracts the salt mist in the test chamber into the storage tank for temporary storage. After the salt mist concentration decreases, the movable door group rises to open the slotted channel. The object moving group moves the basket into the connection box through the transmission lead screw. The first delivery pipe sprays water mist to clean the salt adhered to the surface of the object. The second delivery pipe sprays dry gas to dry the object. The camera detection group visually detects the corrosion degree of the instrument. At the same time, the grating detection member detects the height of the salt mist in the collection pipe.

[0018] If there is no corrosion degree and the amount of salt water collected in the collection pipe reaches the preset value, then execute S4.

[0019] If there is no corrosion degree and the amount of salt water collected in the collection pipe is lower than the preset value, then execute S5.

[0020] If the amount of salt water collected in the collection tube does not reach the preset value due to the corrosion degree, then execute S6.

[0021] If the instrument is corroded, then execute S7;

[0022] S4. The extraction pump extracts the salt mist from the accommodation tank into the test chamber. According to the monitoring results, the console continues to generate salt mist for the test according to the preset data. After reaching the next interval, execute step S3 again;

[0023] S5. The extraction pump extracts the salt mist from the accommodation tank into the test chamber. According to the monitoring results, the salt mist generator increases the salt mist concentration for the test. After reaching the next interval, execute step S3 again;

[0024] S6. The extraction pump extracts the salt mist from the accommodation tank into the test chamber. According to the monitoring results, the salt mist generator reduces the salt mist concentration for the test. After reaching the next interval, execute step S3 again;

[0025] S7. Drain the salt mist in the test chamber to end the salt mist corrosion test.

[0026] The beneficial effects of the present invention are as follows: Since the present invention uses a salt mist caching component to suck the salt mist away and cache it in the accommodation tank before visually identifying the corrosion degree, there is no mist in the test chamber, which improves the clarity during the visual recognition process, ensures the accuracy of visual detection. The visual detection component is provided with a shield, and the front side of the shield is a transparent baffle connected detachably, which isolates the direct contact between the salt mist and the detection camera, effectively extends the service life of the detection camera, and reduces the probability of being corroded during the salt mist test. A grating detection component is arranged on one side of the collection tube, which is used to regularly monitor the salt mist collection amount, so as to determine the salt mist generation amount within the monitoring interval and better automatically adjust the subsequent salt mist generation amount. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 is the first structural schematic diagram of the present invention;

[0028] Figure 2 is the second structural schematic diagram of the present invention;

[0029] Figure 3 is the exploded view of the present invention;

[0030] Figure 4 is the structural schematic diagram of the test chamber of the present invention;

[0031] Figure 5 is the structural schematic diagram of the connection box of the present invention;

[0032] Figure 6 is the exploded view of the cleaning and detection component of the present invention;

[0033] Figure 7 It is a structural schematic diagram of the salt spray buffer component of the present invention.

[0034] In the figure: 1. test box; 11. test chamber; 12. hook; 13. spray element; 14. guide element; 15. collector; 16. collection pipe; 17. temperature sensor; 18. overflow tank; 2. control box; 21. machine base; 22. control console; 23. salt spray generator; 24. salt spray input pipe; 25. pressure regulating device; 3. cleaning and detection assembly; 31. connection box; 32. slot; 33. movable door group; 331. door body drive device; 332. sliding door; 333. sliding rack; 34. camera detection group; 341. sliding plate; 342 , telescopic drive device; 343, displacement drive device; 344, protective cover; 345, detection camera; 346, mounting seat; 35, object moving group; 351, displacement adjustment device; 352, transmission screw; 353, sliding rod; 36, first delivery pipe; 37, second delivery pipe; 38, second rack; 4, salt spray buffer assembly; 41, containing box; 42, extraction pump; 43, first connecting pipe; 44, second connecting pipe; 45, connecting port; 5, sealing cover; 6, pad; 61, bayonet; 62, support rod; 7, card basket; 8, grating detection part. DETAILED DESCRIPTION

[0035] like Figures 1 to 7 As shown, in this embodiment, the present invention includes a test box 1, a control box 2 arranged on one side of the test box 1 for controlling the amount of salt mist precipitation, two groups of cleaning and detection components 3 arranged on one side of the test box 1 for detecting corrosion effects, and a salt mist buffer component 4 arranged on the rear side of the test box 1 for extracting salt mist, the test box 1 is communicated with the control box 2, one end of the test box 1 is rotatably connected with a sealing cover 5, the two groups of cleaning and detection components 3 are fixedly connected to the sealing cover 5, the test box 1 is formed with a test cavity 11 for placing instruments, one end of the salt mist buffer component 4 is connected to the sealing cover 5, the other end of the salt mist buffer component 4 is communicated with the test cavity 11, and the front side of the test box 1 is provided with a grating detection member 8 for detecting the amount of salt water;

[0036] Two baffles are provided on the rear side of the test box 1 for limiting the sealing cover 5. Pure water is provided at the bottom of the test chamber 11 for absorbing heat to prevent the test chamber 1 from drying, cracking and aging when the test chamber 1 is heated. A salt spray buffer component 4 is used to absorb the salt spray and buffer it in the containing box 41 before visually identifying the degree of corrosion, so that there is no fog in the test chamber 11, thereby improving the clarity during the visual identification process and ensuring the accuracy of visual detection. The visual detection component 3 is provided with a shield 31. The front side of the shield 31 is isolated from direct contact between the salt spray and the detection camera 35 by a detachably connected transparent baffle 32, which effectively extends the service life of the detection camera 35 and reduces the probability of corrosion during the salt spray test. The grating detection component 8 provided on one side of the collection tube 16 is used to regularly monitor the amount of salt spray collected, thereby determining the amount of salt spray generated within the monitoring interval and better automatically adjusting the subsequent amount of salt spray generated.

[0037] In this embodiment, a hook 12 is formed on the rear side of the test box 1, and the salt spray buffer assembly 4 includes a holding box 41, an extraction pump 42, a first connecting pipe 43 and a second connecting pipe 44. The holding box 41 is detachably connected to the hook 12, and a connecting port 45 is formed on the upper part of the holding box 41. One end of the extraction pump 42 is communicated with the connecting port 45, and the other end of the extraction pump 42 is communicated with the first connecting pipe 43, and the first connecting pipe 43 is communicated with the sealing cover 5. One end of the second connecting pipe 44 is communicated with the bottom of the holding box 41, and the other end of the second connecting pipe 44 is communicated with the test chamber 11. The outlet side of the second connecting pipe 44 and the test chamber 11 is below the liquid level line of pure water. An inclined surface is formed at the bottom of the holding box 41, and the inclined surface is used to collect water droplets formed by salt spray at the bottom of the holding box 41, enter the bottom of the test chamber 11 through the second connecting pipe 44, and pass the salt spray water into the pure water. The extraction pump 42 is an air pump. The first connecting pipe 43 is a hose, and one end of the first connecting pipe 43 connected to the sealing cover 5 is formed with a plurality of openings 45 for inhaling salt mist. The suction end of the first connecting pipe 43 extends into the sealing cover 5, and the salt mist in the test chamber 11 is extracted and absorbed into the containing box 41 for buffering through the suction structure, and the inhaled salt mist is released again after the visual inspection is completed.

[0038] In this embodiment, the cleaning and detection component 3 includes a connection box 31. The connection box 31 is formed with a slotted opening 32. One side of the connection box 31 is provided with a movable door group 33 for opening and closing the slotted opening 32. The upper part of the connection box 31 is slidably connected with a camera detection group 34 for photographing the corrosion degree of an object. The bottom of the connection box 31 is provided with two object moving groups 35 for adjusting the position of the object. The middle part of the connection box 31 is formed with two first conveying pipes 36 for spraying water mist and two second conveying pipes 37 for spraying dry gas. Each of the first conveying pipes 36 and the second conveying pipes 37 is correspondingly arranged above the corresponding object moving group 35.

[0039] In this embodiment, the movable door group 33 includes a door body driving device 331, a sliding door 332 and a sliding rack 333. The door body driving device 331 is fixedly connected to the top of the connection box 31. The sliding door 332 is slidably connected inside the test box. The sliding rack 333 is fixedly connected to the upper part of the sliding plate 341. The movable end of the door body driving device 331 is provided with a first driving gear meshing with the sliding rack 333. The door body driving device 331 is a rotary motor. A flexible plate for blocking the passage of salt mist is formed on the lower side of the sliding door.

[0040] In this embodiment, a second rack 38 is formed on the top of the connection box 31. The camera detection group 34 includes a sliding plate 341, a telescopic driving device 342, a displacement driving device 343, a shield 344 and a detection camera 345. The sliding plate 341 is slidably matched with the connection box 31. The telescopic driving device 342 is fixedly connected to the middle part of the sliding plate 341. The displacement driving device 343 is fixedly connected to one side of the sliding plate 341. The movable end of the displacement driving device 343 is provided with a meshing with the second rack 38. The movable end of the telescopic driving device 342 is provided with a mounting seat 346. The shield 344 is fixedly connected to the mounting seat 346. The detection camera 345 is fixedly connected to the mounting seat 346. The detection camera 345 is arranged inside the shield 344. The telescopic driving device 342 is a telescopic cylinder. The displacement driving device 343 is a rotary motor. The detection camera 345 is provided with a rotary motor and can realize multi-angle photographing and detecting the corrosion degree of the object.

[0041] In this embodiment, the object moving group 35 includes a displacement adjusting device 351 fixedly connected to the connection box 31, a transmission lead screw 352 connected to the movable end of the displacement adjusting device 351 for driving the displacement of the object. The other end of the transmission lead screw 352 is rotatably connected to the test chamber 1. Slide rods 353 for supporting the object are arranged on both sides of the transmission lead screw 352. The other end of each slide rod 353 is fixedly connected to the test chamber 1. Each rotating lead screw 352 is threadedly connected with a basket 7, and each basket 7 is slidably matched with the corresponding two slide rods 353. The displacement adjusting device 351 is a rotating motor, and the transmission lead screw is used to drive the basket 7.

[0042] In this embodiment, a spraying member 13 for spraying salt mist is arranged in the middle of the test chamber 11. The output end of the spraying member 13 is detachably connected with a flow guiding member 14 for evenly distributing the salt mist. Collectors 15 for collecting salt mist are formed on both sides of the spraying member 13. A flared opening is formed in the upper part of each collector 15. A collecting pipe 16 connected to the output ends of the two collectors 15 is arranged on the front side of the test chamber 1. A temperature sensor 17 for detecting the temperature is arranged on the side wall of the test chamber 11.

[0043] In this embodiment, an overflow water tank 18 for sealing cooperation with the sealing cover 5 is arranged in the upper part of the test chamber 11. The overflow water tank 18 is provided with a containing box 41 for containing pure water. A sealing convex block for cooperating with the containing box 41 is formed at the bottom of the sealing cover 5. Pure water is poured into the overflow water tank 18.

[0044] In this embodiment, the control box 2 includes a machine base 21, a control console 22, a salt mist generator 23, a salt mist input pipe 24, and a voltage regulating device 25. The control console 22 is arranged on the upper part of the machine base 21. The salt mist generator 23 is arranged at the rear side of the machine base 21. One end of the salt mist input pipe 24 is communicated with the salt mist generator 23, and the other end of the salt mist input pipe 24 is communicated with the test chamber 11. The voltage regulating device 25 is arranged on the front side of the machine base 21. The voltage regulating device 25 is electrically connected to the control console 22 and is used to control the output rate of the salt mist generator 23.

[0045] In this embodiment, the monitoring method includes the following steps:

[0046] S1. Open the sealing cover 5, place the instrument in the basket 7, and set the salt mist corrosion monitoring interval, test temperature, and test humidity on the control console 22;

[0047] S2. Start the salt spray test. The salt spray generator 23 distributes the salt spray evenly in the test chamber 11 through the spray member 13. At this time, the temperature sensor 17 monitors the temperature in the test chamber 11 in real time. S3. After reaching the preset monitoring interval for salt spray corrosion, the extraction pump 42 extracts the salt spray in the test chamber 11 into the storage tank 41 for temporary storage. After the salt spray concentration decreases, the movable door group 33 rises to open the channel of the slot 32. The object moving group 35 moves the basket 7 into the connection box 31 through the transmission lead screw 352. The first delivery pipe 36 sprays water mist to clean the salt adhered to the surface of the object, and the second delivery pipe 37 sprays dry gas to dry the object. The camera detection group 34 visually detects the corrosion degree of the instrument. At the same time, the grating detection member 8 detects the height of the salt spray in the collection pipe 16.

[0048] If there is no corrosion degree and the amount of salt water collected in the collection pipe 16 reaches the preset value, then execute S4.

[0049] If there is no corrosion degree and the amount of salt water collected in the collection pipe 16 is lower than the preset value, then execute S5.

[0050] If there is no corrosion degree and the amount of salt water collected in the collection pipe 16 is higher than the preset value, then execute S6.

[0051] If the instrument is corroded, then execute S7.

[0052] S4. The extraction pump 42 extracts the salt spray from the storage tank 41 into the test chamber 11. The console 22 continues to generate salt spray for the test according to the monitoring results and the preset data. After reaching the next interval, execute step S3 again.

[0053] S5. The extraction pump 42 extracts the salt spray from the storage tank 41 into the test chamber 11. The console 22 increases the salt spray concentration for the test according to the monitoring results. After reaching the next interval, execute step S3 again.

[0054] S6. The extraction pump 42 extracts the salt spray from the storage tank 41 into the test chamber 11. The console 22 reduces the salt spray concentration for the test according to the monitoring results. After reaching the next interval, execute step S3 again.

[0055] S7. Drain the salt spray in the test chamber 11 and end the salt spray corrosion test.

[0056] Although the embodiments of the present invention are described with actual solutions, they do not constitute a limitation to the meaning of the present invention. For those skilled in the art, the modification of its implementation solutions according to this specification and the combination with other solutions are obvious.

Claims

1. An intelligent salt spray corrosion monitoring device, characterized in that: The invention comprises a test box (1), a control box (2) arranged at one side of the test box (1) for controlling the amount of salt mist precipitation, two groups of cleaning and detection components (3) arranged at one side of the test box (1) for detecting corrosion effects, and a salt mist buffer component (4) arranged at the rear side of the test box (1) for extracting salt mist, the test box (1) being connected to the control box (2), one end of the test box (1) being rotatably connected to a sealing cover (5), the two groups of cleaning and detection components (3) being fixedly connected to the sealing cover (5), the test box (1) forming a test cavity (11) for placing instruments, one end of the salt mist buffer component (4) being connected to the sealing cover (5), the other end of the salt mist buffer component (4) being connected to the test cavity (11), and a grating detection component (8) for detecting the amount of salt water being arranged at the front side of the test box (1).

2. The intelligent salt spray corrosion monitoring device according to claim 1 is characterized in that: A hook (12) is formed on the rear side of the test box (1); the salt spray buffer assembly (4) comprises a containing box (41), an extraction pump (42), a first connecting pipe (43) and a second connecting pipe (44); the containing box (41) is detachably connected to the hook (12); a connecting port (45) is formed on the upper part of the containing box (41); one end of the extraction pump (42) is connected to the connecting port (45); the other end of the extraction pump (42) is connected to the first connecting pipe (43); the first connecting pipe (43) is connected to the sealing cover (5); one end of the second connecting pipe (44) is connected to the bottom of the containing box (41); and the other end of the second connecting pipe (44) is connected to the test chamber (11).

3. The intelligent salt spray corrosion monitoring device according to claim 1 is characterized in that: The cleaning detection assembly (3) comprises a connection box (31), the connection box (31) is formed with a slot (32), one side of the connection box (31) is provided with a movable door group (33) for opening and closing the slot (32), the upper part of the connection box (31) is slidably connected with a camera detection group (34) for photographing the corrosion degree of an object, the bottom of the connection box (31) is provided with two groups of object moving groups (35) for adjusting the position of an object, and the middle part of the connection box (31) is formed with two first delivery pipes (36) for spraying water mist and two second delivery pipes (37) for spraying dry gas, and each of the first delivery pipes (36) and the second delivery pipe (37) is correspondingly arranged above the corresponding object moving group (35).

4. The intelligent salt spray corrosion monitoring device according to claim 4 is characterized in that: The movable door group (33) includes a door body driving device (331), a sliding door (332) and a sliding rack (333), wherein the door body driving device (331) is fixedly connected to the top of the connection box (31), the sliding door (332) is slidably connected in the test box, the sliding rack (333) is fixedly connected to the upper part of the sliding plate (341), and the movable end of the door body driving device (331) is provided with a first driving gear meshing with the sliding rack (333).

5. The intelligent salt spray corrosion monitoring device according to claim 4 is characterized in that: A second rack (38) is formed on the top of the connection box (31); the camera detection group (34) comprises a sliding plate (341), a telescopic drive device (342), a displacement drive device (343), a shield (344) and a detection camera (345); the sliding plate (341) is slidably matched with the connection box (31); the telescopic drive device (342) is fixedly connected to the middle of the sliding plate (341); the displacement drive device (343) is fixedly connected to one side of the sliding plate (341); the movable end of the displacement drive device (343) is provided with a member meshing with the second rack (38); the movable end of the telescopic drive device (342) is provided with a mounting seat (346); the shield (344) is fixedly connected to the mounting seat (346); the detection camera (345) is fixedly connected to the mounting seat (346); and the detection camera (345) is arranged in the shield (344).

6. The intelligent salt spray corrosion monitoring device according to claim 4 is characterized in that: The object moving group (35) comprises a displacement adjustment device (351) fixedly connected to the connection box (31), a transmission screw (352) connected to the movable end of the displacement adjustment device (351) for driving the object to move, the other end of the transmission screw (352) being rotatably connected to the test box (1), and sliding rods (353) for supporting objects being arranged on both sides of the transmission screw (352), the other end of each sliding rod (353) being fixedly connected to the test box (1), and each rotating screw (352) being threadedly connected to a clamping basket (7), and each clamping basket (7) correspondingly slidingly cooperates with the corresponding two sliding rods (353).

7. The intelligent salt spray corrosion monitoring device according to claim 1 is characterized in that: A spraying element (13) for spraying salt mist is arranged in the middle of the test chamber (11); an output end of the spraying element (13) is detachably connected to a flow guide element (14) for evenly distributing the salt mist; collectors (15) for collecting the salt mist are formed on both sides of the spraying element (13); a bell mouth is formed on the upper part of each collector (15); a collecting pipe (16) connected to the output ends of the two collectors (15) is arranged on the front side of the test box (1); and a temperature sensor (17) for detecting temperature is arranged on the side wall of the test chamber (11).

8. The intelligent salt spray corrosion monitoring device according to claim 1 is characterized in that: The upper part of the test chamber (11) is provided with an overflow groove (18) which cooperates with the sealing cover (5) for sealing. The overflow groove (18) is provided with a receiving box (41) for receiving pure water. The bottom of the sealing cover (5) is formed with a sealing protrusion which cooperates with the receiving box (41).

9. The intelligent salt spray corrosion monitoring device according to claim 1, characterized in that: The control box (2) comprises a machine base (21), a control console (22), a salt mist generator (23), a salt mist input pipe (24) and a voltage regulating device (25); the control console (22) is arranged on the upper part of the machine base (21); the salt mist generator (23) is arranged on the rear side of the machine base (21); one end of the salt mist input pipe (24) is communicated with the salt mist generator (23); the other end of the salt mist input pipe (24) is communicated with the test chamber (11); the voltage regulating device (25) is arranged on the front side of the machine base (21); the voltage regulating device (25) is electrically connected to the control console (22) and is used to control the output rate of the salt mist generator (23).

10. A monitoring method comprising the salt spray corrosion intelligent monitoring device according to any one of claims 1 to 9, characterized in that: The monitoring method comprises the following steps: S1, opening the sealing cover (5), placing the instrument into the card basket (7), and setting the salt spray corrosion monitoring interval, test temperature and test humidity on the console (22); S2, starting a salt spray test, wherein the salt spray generator (23) evenly distributes salt spray in the test chamber (11) through the spray element (13), and the temperature sensor (17) monitors the temperature in the test chamber (11) in real time; S3, after the preset monitoring interval of salt spray corrosion, the extraction pump (42) extracts the salt spray in the test chamber (11) into the holding box (41) for temporary storage. After the salt spray concentration decreases, the movable door group (33) rises to open the slot (32) channel, the object moving group (35) moves the card basket (7) into the connection box (31) through the transmission screw (352), the first delivery pipe (36) sprays water mist to clean the salt attached to the surface of the object, the second delivery pipe (37) sprays dry gas to dry the object, the camera detection group (34) visually detects the degree of corrosion of the instrument, and the grating detection member (8) detects the height of the salt spray in the collection pipe (16). If there is no corrosion and the amount of salt water collected in the collection pipe (16) reaches a preset value, S4 is executed. If there is no corrosion and the amount of salt water collected in the collection pipe (16) is lower than a preset value, S5 is executed. If there is no corrosion and the amount of salt water collected in the collecting pipe (16) is higher than a preset value, S6 is executed. If the instrument is corroded, execute S7; S4, the object moving group (35) returns the card basket to the test box (1), the extraction pump (42) extracts the salt mist from the containing box (41) into the test chamber (11), and the control console (22) continues to generate salt mist according to preset data for testing based on the monitoring results, and after reaching the next interval, step S3 is executed again; S5, the object moving group (35) returns the card basket to the test box (1), the extraction pump (42) extracts the salt mist from the containing box (41) into the test chamber (11), the control console (22) increases the salt mist concentration according to the monitoring result, and the salt mist generator (23) performs the test, and after reaching the next interval, step S3 is executed again; S6, the object moving group (35) returns the card basket to the test box (1), the extraction pump (42) extracts the salt mist from the containing box (41) into the test chamber (11), the control console (22) reduces the salt mist concentration according to the monitoring result, and the salt mist generator (23) performs the test, and after reaching the next interval, step S3 is executed again; S7, discharging the salt mist in the test chamber (11), and ending the salt spray corrosion test.

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