Closed salt spray testing machine

Abstract

The invention relates to the technical field of salt spray testing machines, and provides a closed salt spray testing machine which comprises a salt spray generator body, and further comprises a salt spray generation box, a mist discharging assembly with a user-defined exhaust adjusting function, a material carrying mechanism with a rotating function and a mist circulating assembly. The salt mist generator body is installed in the salt mist generating box, the mist spraying end of the salt mist generator body penetrates into the test box, the two mist discharging assemblies are arranged in the test box in a sealed mode, and the two mist discharging assemblies divide the interior of the test box into a first circulating gas area, a test area and a second circulating gas area. The spraying end of the salt mist generator body is located in the first circulating gas area, and the material carrying mechanism is arranged in the test box. By means of the technical scheme, the problem that in the prior art, when a closed salt mist testing machine conducts salt mist detection on a tested product, all-directional salt mist spraying is difficult to conduct on the tested product is solved.

Description

Technical Field

[0001] The invention relates to the technical field of salt spray testing machines, and in particular to a closed salt spray testing machine. Background Art

[0002] A closed salt spray test chamber is a device that tests the corrosion resistance of a product. It is mainly used to test the durability of metal materials, plastics and other products in a salt spray environment. Its specific purpose is to simulate harsh environments such as the ocean and salt spray, exposing the product to high salinity and humidity conditions, thereby evaluating its durability and reliability in actual use. Currently, salt spray test chambers are widely used in electronics, automobiles, aerospace and other fields.

[0003] Most existing closed salt spray testers create a closed environment and spray salt spray into it under the action of a salt spray generator to simulate marine climate conditions. However, during the actual test process, most existing salt spray testers directly place the test product on the test platform. When conducting salt spray tests on the test products, it is difficult to spray salt spray on the bottom of the test products, making it difficult to conduct comprehensive tests on the test products, which will greatly affect the test results of the test products during the test phase. Summary of the Invention

[0004] The present invention provides a closed salt spray tester to solve the problem raised in the background art that the closed salt spray tester in the prior art is difficult to spray the test product with salt spray in all directions when performing salt spray testing on the test product.

[0005] The technical solution of the present invention is as follows: a closed salt spray tester, comprising a salt spray generator body, a salt spray generating box, a mist discharge component with a customizable adjustable exhaust function, a loading mechanism with a rotating function, and a mist circulation component; The salt spray generating box is provided with a test box, the salt spray generator body is installed in the salt spray generating box, and the spray end of the salt spray generator body passes through the test box; The mist discharge assembly is provided with two groups, and the mist discharge assembly is sealed in the test box. The two groups of mist discharge assemblies divide the test box into a first air circulation area, a test area, and a second air circulation area. The spray end of the salt mist generator body is located in the first air circulation area. The loading mechanism is provided in the test box, and is located in the test area, for carrying the test product; The mist circulation component is arranged in the salt mist generating box, and the mist circulation component is communicated with the first air circulation zone and the second air circulation zone.

[0006] On the basis of the above solution, the mist discharge assembly includes an air circulation baffle and a blocking portion with a locking function; The air circulation baffle is sealed and arranged in the test box, and a plurality of exhaust holes are opened on the air circulation baffle; There are a plurality of blocking parts, each of which corresponds to the exhaust through hole one by one, and each blocking part is detachably disposed in the exhaust through hole.

[0007] Further on the basis of the above solution, the blocking portion includes a pullable blocking block; The pullable blocking block is adapted to the exhaust through hole. A plurality of limiting through holes are provided on the pullable blocking block. A limiting block is slidably arranged in each of the limiting through holes. A limiting spring is arranged between the limiting block and the limiting through hole.

[0008] As a preferred technical solution of the present application, the loading mechanism includes a loading tray, a bearing assembly and a power assembly; The loading tray is arranged in the test box via a plurality of support rods; There are multiple bearing assemblies, and the multiple bearing assemblies are evenly arranged on the loading tray, and a loading platform is formed between the multiple bearing assemblies to drive the test product to rotate at a uniform speed; There are multiple power components, and the power components are rotatably arranged on the loading tray. The power components are engaged with the bearing components.

[0009] Further on the basis of the above solution, the load-bearing assembly includes a universal coupling, a tapered load-bearing roller and a load-bearing gear; The universal coupling is penetrated and rotatably arranged on one side of the loading tray; The tapered bearing roller is arranged on one side of the universal joint, one side of the tapered bearing roller passes through the material loading tray and is arranged parallel to the material loading tray, and the tapered bearing roller is in sliding contact with the material loading tray; The load-bearing gear is arranged on the other side of the universal joint.

[0010] Further on the basis of the above solution, the power assembly includes an annular internal gear, a toothed turntable, a drive motor and a load-bearing gear; The annular internal gear is rotatably arranged on the loading tray; The toothed turntable is arranged on the annular internal gear, and the toothed turntable is meshed with the driving gear; The driving motor is installed in the salt spray generating box through a driving frame, and the output end of the driving motor passes through the test box; The driving gear is arranged on the output end of the driving motor, and the driving gear is meshed with the annular internal gear.

[0011] Further on the basis of the above solution, the loading tray is provided with a load baffle for shielding the load-bearing gear; The annular internal gear is provided with a driving baffle for shielding the driving gear, and the driving baffle is in sliding contact with the loading tray; The loading plate is also provided with a plurality of limit levers rotatably arranged at equal angles, a loading cavity is formed between the plurality of limit levers, and the bearing assembly is located in the loading cavity.

[0012] As a preferred technical solution of this application, the mist circulation assembly includes an air intake box, an exhaust box, an electric heating wire group and an air circulation power unit; The air inlet box is arranged in the salt spray generating box, and a plurality of air inlet pipes are connected between the air inlet box and the second air circulation zone; The exhaust box is arranged in the salt spray generating box, and a plurality of exhaust pipes are connected between the exhaust box and the first air circulation area; There are two electric heating wire groups, which are respectively installed in the air intake box and the exhaust box; The air circulation power unit is arranged between the air intake box and the exhaust box, and the air circulation power unit is connected to the output end of the driving motor.

[0013] Further on the basis of the above solution, the air circulation power unit includes an air circulation power box and an air circulation fan; The air circulation power box is connected and arranged between the air intake box and the exhaust box; The air circulation fan is installed in the air circulation power box.

[0014] Further to the above solution, an observation window is provided on one side of the test box, a feeding through hole is provided on the test box, and a feeding cover is detachably provided in the feeding through hole.

[0015] The working principle and beneficial effects of the present invention are: 1. Before testing the test product, the present invention opens the loading cover and places the test product on the loading platform. According to the size of the test product in the loading cavity, the pull-out blocking block at the corresponding position on the air circulation baffle is removed from the exhaust through hole, so that the salt mist sprayed from the salt mist generator body can enter the air circulation zone 2 through the air circulation zone 1 and the test zone. The salt mist sprayed from the air circulation zone 1 can directly contact the test product, thereby avoiding excessive salt mist discharge and maximizing the contact between the salt mist and the test product. 2. In the present invention, when a salt spray test is performed on a test product, the drive motor is started, so that the output end of the drive motor drives the drive gear to rotate, the rotation of the drive gear drives the annular internal gear to rotate, the rotation of the annular internal gear drives the toothed turntable to rotate, the rotation of the toothed turntable drives the load-bearing gear meshed therewith to rotate, the rotation of the load-bearing gear drives the universal coupling to rotate, the rotation of the universal coupling drives the conical load-bearing roller to rotate, and the rotation of the conical load-bearing roller drives the test product to rotate in the loading cavity. Under the rotation of multiple conical load-bearing rollers, the test product can rotate in the loading cavity due to the different surface rotation speeds of the conical load-bearing rollers. As the test product rotates, the salt spray gas can pass through the gap between the conical load-bearing roller and the loading disk and contact the bottom of the test product; 3. The present invention starts the air circulation fan when the driving motor is started to drive the test product to rotate. Under the instigation of the air circulation fan, the gas in the test chamber passes through the air circulation zone 2, the air intake pipe, the air intake box, the air circulation power box, the exhaust box, and the exhaust pipe to the air circulation zone 1, so that the salt spray gas circulates in the test zone. By simulating the flow of the sea breeze through the circulation of the gas in the test zone, the salt spray sprayed from the salt spray generator body contacts the test product, thereby achieving a salt spray test on the test product. 4. The present invention can preheat the salt mist and adjust the temperature in the test area by circulating the salt mist sprayed by the salt mist generator under the action of the electric heating wire group. The concentration of the salt mist in the test area can be adjusted by intermittently spraying high-concentration salt mist through the salt mist generator body to adjust the salt mist in the test area. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0017] Figure 1 It is a schematic structural diagram of a partial cross-section of the present invention; Figure 2 For the present invention Figure 1 Schematic diagram of the local enlarged structure at A in the middle; Figure 3 For the present invention Figure 1 Schematic diagram of the local enlarged structure at B in the middle; Figure 4 For the present invention Figure 1 Schematic diagram of the local enlarged structure at C in the middle; Figure 5 This is a schematic diagram of the structure of the carrier assembly, the annular internal gear, the toothed rotating disk and the driving gear in the present invention; Figure 6 For the present invention Figure 5 Schematic diagram of the local enlarged structure at D in the middle; Figure 7A schematic structural diagram showing the cooperation of the bearing assembly, the annular internal gear, the toothed rotating disk and the driving gear in the present invention from another angle; Figure 8 It is a structural schematic diagram of the load-bearing component in the present invention; Figure 9 It is a schematic structural diagram of the present invention as a whole.

[0018] In the figure: 001, mist discharge component; 002, material loading mechanism; 003, mist circulation component; 1. Salt spray generator body; 2. Salt spray generating chamber; 3. Test chamber; 4. Air circulation baffle; 5. Pullable blocking block; 6. Limit block; 7. Limit spring; 8. Loading tray; 9. Universal joint; 10. Conical load-bearing roller; 11. Loading gear; 12. Annular internal gear; 13. Toothed turntable; 14. Drive motor; 15. Drive frame; 16. Drive gear; 17. Loading baffle; 18. Drive baffle; 19. Limit lever; 20. Air intake box; 21. Air intake pipe; 22. Exhaust box; 23. Exhaust pipe; 24. Electric heating wire group; 25. Air circulation power box; 26. Air circulation fan; 27. Observation window; 28. Loading cover. DETAILED DESCRIPTION

[0019] The following will be combined with the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts are within the scope of protection of the present invention.

[0020] like Figures 1 to 9 As shown, this embodiment proposes a closed salt spray tester, including a salt spray generator body 1, a salt spray generating box 2, a mist discharge component 001 with a custom adjustable exhaust function, a loading mechanism 002 with a rotation function, and a mist circulation component 003.

[0021] As mentioned above, a test box 3 is provided on the salt spray generating box 2, the salt spray generator body 1 is installed in the salt spray generating box 2, and the spray end of the salt spray generator body 1 passes through the test box 3. Specifically, a box door is hinged on one side of the salt spray generating box 2, and the equipment in the salt spray generating box 2 can be installed and maintained by opening the box door.

[0022] Among them, an observation window 27 is provided on one side of the test box 3, and a loading through hole is opened on the test box 3. A loading cover 28 is detachably provided in the loading through hole. By opening and closing the loading cover 28, the loading and unloading operations of the test product can be realized. Through the observation window 27, the salt spray state of the test product in the test box 3 can be observed.

[0023] As mentioned above, there are two groups of mist emission components 001, and the mist emission components 001 are sealed in the test box 3. The two groups of mist emission components 001 divide the test box 3 into a circulation area 1, a test area and a circulation area 2. The spray end of the salt spray generator body 1 is located in the circulation area 1. The mist emission component 001 includes an air circulation baffle 4 and a sealing part with a locking function. The air circulation baffle 4 is sealed in the test box 3. A plurality of exhaust holes are opened on the air circulation baffle 4. There are multiple sealing parts, and the sealing parts correspond to the exhaust holes one by one. The sealing parts are detachable and arranged in the exhaust holes.

[0024] Among them, the blocking part includes a pullable blocking block 5, which is adapted to the exhaust through hole. A plurality of limiting through holes are opened on the pullable blocking block 5, and a limiting block 6 is slidingly arranged in each limiting through hole. A limiting spring 7 is arranged between the limiting block 6 and the limiting through hole.

[0025] Specifically, before testing the test product, open the loading cover 28 and place the test product on the loading platform. According to the size of the test product in the loading cavity, remove the pull-type blocking block 5 at the corresponding position on the air circulation baffle 4 from the exhaust through hole, so that the salt mist sprayed from the salt mist generator body 1 can enter the air circulation area 2 through the air circulation area 1 and the test area, so that the salt mist sprayed from the air circulation area 1 can directly contact the test product, thereby avoiding excessive salt mist discharge and increasing the contact between the salt mist and the test product as much as possible.

[0026] As mentioned above, the loading mechanism 002 is arranged in the test box 3, and the loading mechanism 002 is located in the test area and is used to carry the test product. The loading mechanism 002 includes a loading tray 8, a carrying component and a power component. The loading tray 8 is arranged in the test box 3 through multiple support rods. There are multiple carrying components, and multiple carrying components are arranged at equal angles on the loading tray 8. A loading platform is formed between the multiple carrying components, which can drive the test product to rotate at a uniform speed. There are multiple power components, and the power components are rotatably arranged on the loading tray 8, and the power components are engaged with the carrying components.

[0027] Among them, the bearing assembly includes a universal coupling 9, a conical bearing roller 10 and a bearing gear 11. The universal coupling 9 passes through and is rotatably arranged on one side of the loading plate 8. The conical bearing roller 10 is arranged on one side of the universal coupling 9. One side of the conical bearing roller 10 passes through the loading plate 8 and is arranged parallel to the loading plate 8. The conical bearing roller 10 is in sliding contact with the loading plate 8, and the bearing gear 11 is arranged on the other side of the universal coupling 9.

[0028] Among them, the power assembly includes an annular internal gear 12, a toothed turntable 13, a drive motor 14 and a drive gear 16. The annular internal gear 12 is rotatably set on the loading plate 8, the toothed turntable 13 is set on the annular internal gear 12, the toothed turntable 13 is engaged with the load-bearing gear 11, the drive motor 14 is installed in the salt spray generating box 2 through the drive frame 15, the output end of the drive motor 14 passes through the test box 3, the drive gear 16 is set on the output end of the drive motor 14, and the drive gear 16 is engaged with the annular internal gear 12.

[0029] Specifically, when the test product is subjected to a salt spray test, the drive motor 14 is started so that the output end of the drive motor 14 drives the drive gear 16 to rotate, the rotation of the drive gear 16 drives the annular internal gear 12 to rotate, the rotation of the annular internal gear 12 drives the toothed turntable 13 to rotate, the rotation of the toothed turntable 13 drives the load-bearing gear 11 meshed therewith to rotate, the rotation of the load-bearing gear 11 drives the universal coupling 9 to rotate, the rotation of the universal coupling 9 drives the conical load-bearing roller 10 to rotate, and the rotation of the conical load-bearing roller 10 drives the test product to rotate in the loading cavity. Under the rotation of multiple conical load-bearing rollers 10, the test product can rotate in the loading cavity due to the different surface rotation speeds of the conical load-bearing rollers 10. As the test product rotates, the salt spray gas can pass through the gap between the conical load-bearing roller 10 and the loading pan 8 and contact the bottom of the test product.

[0030] It should be noted that a load-bearing baffle 17 for blocking the load-bearing gear 11 is provided on the loading tray 8, and a drive baffle 18 for blocking the drive gear 16 is provided on the annular internal gear 12. The drive baffle 18 is in sliding contact with the loading tray 8. A plurality of limit levers 19 are also provided on the loading tray 8 for rotation at equal angles. A loading cavity is formed between the plurality of limit levers 19, and the load-bearing assembly is located in the loading cavity.

[0031] Specifically, by setting the load-bearing baffle 17 and the driving baffle 18, the load-bearing gear 11 and the driving gear 16 can be protected to prevent the loading equipment from being excessively affected by salt spray erosion. By setting the limit lever 19, the problem of the test product falling from the loading cavity can be effectively prevented.

[0032] As mentioned above, the mist circulation component 003 is arranged in the salt mist generating box 2, the mist circulation component 003 is connected to the loading mechanism 002, and the mist circulation component 003 is connected to the air circulation zone 1 and the air circulation zone 2. The mist circulation component 003 includes an air intake box 20, an exhaust box 22, an electric heating wire group 24 and an air circulation power unit. The air intake box 20 is arranged in the salt mist generating box 2, and a plurality of air intake pipes 21 are connected between the air intake box 20 and the air circulation zone 2. The exhaust box 22 is arranged in the salt mist generating box 2, and a plurality of exhaust pipes 23 are connected between the exhaust box 22 and the air circulation zone 1. There are two electric heating wire groups 24, and the two electric heating wire groups 24 are respectively installed in the air intake box 20 and the exhaust box 22. The air circulation power unit is arranged between the air intake box 20 and the exhaust box 22, and the air circulation power unit is connected to the output end of the drive motor 14.

[0033] The air circulation power unit includes an air circulation power box 25 and an air circulation fan 26 . The air circulation power box 25 is connected and arranged between the air intake box 20 and the exhaust box 22 . The air circulation fan 26 is installed in the air circulation power box 25 .

[0034] Specifically, when the drive motor 14 is started to drive the test product to rotate, the air circulation fan 26 is started. Under the encouragement of the air circulation fan 26, the gas in the test box 3 passes through the air circulation zone 2, the air intake pipe 21, the air intake box 20, the air circulation power box 25, the exhaust box 22, and the exhaust pipe 23 to the air circulation zone 1, so that the salt spray gas circulates in the test zone. By simulating the flow of the sea breeze through the circulation of the gas in the test zone, the salt spray sprayed from the salt spray generator body 1 comes into contact with the test product, thereby realizing the salt spray test of the test product.

[0035] When the output end of the drive motor 14 rotates and the salt mist sprayed by the salt mist generator is circulated, the electric heating wire group 24 can also preheat the salt mist and adjust the temperature in the test area. As for the concentration of the salt mist in the test area, the salt mist generator body 1 can intermittently spray high-concentration salt mist to adjust the salt mist in the test area.

[0036] It should be noted that the salt mist generator body 1 continuously sprays salt mist into the test box 3. When the air pressure in the test area increases, the excess gas can be discharged through the gap between the loading cover 28 and the test box 3. During the actual test process, a salt mist concentration sensor, a temperature sensor, and other equipment for detecting the environment in the test box can be set on one side of the test box 3 for testing the product.

[0037] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A closed salt spray test machine, comprising a salt spray generator body (1), characterized in that: Also includes: A salt mist generating box (2), wherein a test box (3) is provided on the salt mist generating box (2), the salt mist generator body (1) is installed in the salt mist generating box (2), and the spray end of the salt mist generator body (1) penetrates into the test box (3); A mist discharge component (001) with a customizable exhaust adjustment function, wherein the mist discharge component (001) is provided with two groups, the mist discharge component (001) is sealed and arranged in the test box (3), and the two groups of the mist discharge components (001) divide the test box (3) into a first air circulation zone, a test zone, and a second air circulation zone, and the spray end of the salt mist generator body (1) is located in the first air circulation zone; a loading mechanism (002) with a rotation function, the loading mechanism (002) being arranged in the test box (3), the loading mechanism (002) being located in the test area and being used for loading the test product; A mist circulation component (003) is provided in the salt mist generating box (2), and the mist circulation component (003) is connected to the first air circulation zone and the second air circulation zone.

2. A closed salt spray tester according to claim 1, characterized in that: The mist discharge component (001) comprises: An air circulation baffle (4), the air circulation baffle (4) is sealed and arranged in the test box (3), and a plurality of exhaust holes are opened on the air circulation baffle (4); A blocking portion with a locking function is provided in plurality, each blocking portion corresponds to the exhaust through hole one by one, and the blocking portion is detachably arranged in the exhaust through hole.

3. A closed salt spray tester according to claim 2, characterized in that: The blocking portion includes: A pullable blocking block (5) is adapted to the exhaust through hole, a plurality of limit through holes are provided on the pullable blocking block (5), a limit block (6) is slidably arranged in each of the limit through holes, and a limit spring (7) is arranged between the limit block (6) and the limit through hole.

4. A closed salt spray tester according to claim 3, characterized in that: The loading mechanism (002) comprises: A loading tray (8), the loading tray (8) being arranged in the test box (3) via a plurality of support rods; A bearing assembly, wherein a plurality of bearing assemblies are provided, and the plurality of bearing assemblies are arranged at equal angles on the material loading plate (8), and a material loading platform capable of driving the test product to rotate at a uniform speed is formed between the plurality of bearing assemblies; A power assembly, wherein a plurality of power assemblies are provided, the power assembly is rotatably arranged on the loading tray (8), and the power assembly is engaged with the bearing assembly.

5. A closed salt spray tester according to claim 4, characterized in that: The bearing assembly includes: A universal coupling (9), the universal coupling (9) passing through and rotatably arranged on one side of the loading tray (8); a conical bearing roller (10), the conical bearing roller (10) being arranged on one side of the universal coupling (9), one side of the conical bearing roller (10) passing through the material loading tray (8) and being arranged parallel to the material loading tray (8), the conical bearing roller (10) being in sliding contact with the material loading tray (8); A load-bearing gear (11), wherein the load-bearing gear (11) is arranged on the other side of the universal joint (9).

6. A closed salt spray tester according to claim 5, characterized in that: The power assembly includes: an annular internal gear (12), the annular internal gear (12) being rotatably disposed on the loading tray (8); a toothed rotating disc (13), the toothed rotating disc (13) being arranged on the annular internal gear (12), and the toothed rotating disc (13) being meshed with the load-bearing gear (11); A drive motor (14), wherein the drive motor (14) is installed in the salt spray generating box (2) via a drive frame (15), and an output end of the drive motor (14) extends into the test box (3); A driving gear (16) is provided on the output end of the driving motor (14), and the driving gear (16) is meshed with the annular internal gear (12).

7. A closed salt spray tester according to claim 6, characterized in that: The loading tray (8) is provided with a load baffle (17) for shielding the load-bearing gear (11); A driving baffle (18) for shielding the driving gear (16) is provided on the annular internal gear (12), and the driving baffle (18) is in sliding contact with the loading tray (8); A plurality of limit levers (19) are also provided on the loading plate (8) so as to be rotated at equal angles, and a loading cavity is formed between the plurality of limit levers (19), and the bearing assembly is located in the loading cavity.

8. A closed salt spray tester according to claim 7, characterized in that: The mist circulation component (003) comprises: An air intake box (20), the air intake box (20) being arranged in the salt mist generating box (2), and a plurality of air intake pipes (21) being connected between the air intake box (20) and the second air circulation zone; An exhaust box (22), the exhaust box (22) being arranged in the salt mist generating box (2), and a plurality of exhaust pipes (23) being connected between the exhaust box (22) and the first air circulation zone; An electric heating wire group (24), wherein two electric heating wire groups (24) are provided, and the two electric heating wire groups (24) are respectively installed in the air intake box (20) and the exhaust box (22); An air circulation power unit is provided between the air intake box (20) and the exhaust box (22), and the air circulation power unit is connected to the output end of the drive motor (14).

9. A closed salt spray tester according to claim 8, characterized in that: The gas circulation power unit includes: An air circulation power box (25), the air circulation power box (25) being arranged in communication between the air intake box (20) and the exhaust box (22); An air circulation fan (26), wherein the air circulation fan (26) is installed in the air circulation power box (25).

10. A closed salt spray tester according to claim 9, characterized in that: An observation window (27) is provided on one side of the test box (3), and a loading through hole is provided on the test box (3), wherein a loading cover (28) is detachably provided in the loading through hole.

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