Salt spray testing device for metal material

Abstract

The utility model belongs to the technical field of material testing, and particularly relates to a salt spray testing device for a metal material. Comprising a box body, a testing cavity is formed in the upper portion in the box body, a saline solution storage cavity and a waste liquid recovery cavity are formed in the lower portion in the box body, a first rotating shaft is rotationally installed between the two opposite side walls in the testing cavity, rotating discs are fixedly installed on the portions, located on the two sides of the testing cavity, of the first rotating shaft correspondingly, and a plurality of second rotating shafts are installed on the two rotating discs in the circumferential direction; gears are fixedly connected to the ends, away from each other, of the second rotating shafts on the two rotating discs, fixing mechanisms are fixedly connected to the ends, close to each other, of the second rotating shafts on the two rotating discs, and inner tooth gear rings are fixedly connected to the positions, corresponding to the peripheries of the rotating discs, of the side wall of the testing cavity; and all the gears on each turntable are meshed with the corresponding inner tooth gear rings. The metal material can be driven to revolve and rotate simultaneously, so that salt mist can be uniformly sprayed on the upper surface and the lower surface of the metal material, and the comprehensiveness and the accuracy of a test result are further ensured.

Description

TECHNICAL FIELD

[0001] The utility model belongs to material testing technical field, concretely relates to a salt fog testing device of metal material. BACKGROUND

[0002] Salt spray test is a kind of environmental test mainly using artificial simulated salt fog environment condition created by salt spray test equipment to examine the corrosion resistance of product or metal material.Salt spray test standard is to make specific provision to salt spray test condition, such as temperature, humidity, sodium chloride solution concentration and pH value, in addition, also puts forward technical requirement to salt spray test box performance.Product needing salt spray test is mainly some metal products, and the corrosion resistance of product is examined by detection.

[0003] The Chinese invention patent with the publication number CN117110182A discloses a novel salt fog testing device capable of constant temperature and humidity, which can realize salt fog testing, but during the testing process, the metal material is fixedly placed on the placing table, cannot be turned over, so that only the upper surface of the metal material can receive salt fog spraying, and the lower surface of the metal material cannot contact the salt fog at all, thereby affecting the comprehensiveness and accuracy of the testing result.Therefore, it is urgent to design a testing device capable of salt fog testing on the upper and lower surfaces of the metal material. UTILITY MODEL CONTENT

[0004] In view of the problems existing in the prior art, a salt fog testing device of metal material is disclosed in the utility model, and the following technical scheme is specifically disclosed.

[0005] A salt fog testing device of metal material, comprising a box body, a test cavity is arranged on the upper part in the box body, a salt solution storage cavity and a waste liquid recovery cavity are arranged on the lower part in the box body, the bottom of the test cavity is communicated with the waste liquid recovery cavity through a liquid discharge port, a first rotating shaft is rotatably installed between two opposite side walls in the test cavity, one end of the first rotating shaft is fixedly connected with the output end of a first driving motor on the outer wall of the box body, a rotating disc is fixedly installed on the first rotating shaft on the two sides of the test cavity, a plurality of second rotating shafts are installed on the two rotating discs in the circumferential direction, and the second rotating shafts on the two rotating discs are arranged in one-to-one correspondence, the ends of the second rotating shafts on the two rotating discs away from each other are fixedly connected with gears, the ends of the second rotating shafts on the two rotating discs close to each other are fixedly connected with fixing mechanisms, the outer periphery of each rotating disc is fixedly connected with an inner tooth ring on the side wall of the test cavity, all the gears on each rotating disc are meshed with the corresponding inner tooth ring, a plurality of salt fog spraying heads are installed on the two side walls of the test cavity without inner tooth ring, and the salt fog spraying heads are communicated with a submersible pump in the salt solution storage cavity through liquid delivery pipes.

[0006] Further, the fixing mechanism comprises support side plates, one side of the support side plates is fixedly connected with corresponding second rotating shafts, the other sides are vertically fixedly connected with support end plates at two ends respectively, adjusting bolts are threadedly connected on the two support end plates respectively, clamping plates are rotatably installed at the ends of the two adjusting bolts which are close to each other respectively, and the two clamping plates are used for clamping and fixing the metal material.

[0007] Further, the fixing mechanism comprises support side plates, one side of the support side plates is fixedly connected with corresponding second rotating shafts, the other sides are vertically fixedly connected with support end plates at two ends respectively, adjusting bolts are threadedly connected on the two support end plates respectively, clamping plates are rotatably installed at the ends of the two adjusting bolts which are close to each other respectively, and the two clamping plates are used for clamping and fixing the metal material.

[0008] Further, the fixing mechanism comprises support side plates, one side of the support side plates is fixedly connected with corresponding second rotating shafts, the other sides are vertically fixedly connected with support end plates at two ends respectively, adjusting bolts are threadedly connected on the two support end plates respectively, clamping plates are rotatably installed at the ends of the two adjusting bolts which are close to each other respectively, and the two clamping plates are used for clamping and fixing the metal material.

[0009] Further, the fixing mechanism comprises support side plates, one side of the support side plates is fixedly connected with corresponding second rotating shafts, the other sides are vertically fixedly connected with support end plates at two ends respectively, adjusting bolts are threadedly connected on the two support end plates respectively, clamping plates are rotatably installed at the ends of the two adjusting bolts which are close to each other respectively, and the two clamping plates are used for clamping and fixing the metal material.

[0010] Further, the fixing mechanism comprises support side plates, one side of the support side plates is fixedly connected with corresponding second rotating shafts, the other sides are vertically fixedly connected with support end plates at two ends respectively, adjusting bolts are threadedly connected on the two support end plates respectively, clamping plates are rotatably installed at the ends of the two adjusting bolts which are close to each other respectively, and the two clamping plates are used for clamping and fixing the metal material.

[0011] Further, the fixing mechanism comprises support side plates, one side of the support side plates is fixedly connected with corresponding second rotating shafts, the other sides are vertically fixedly connected with support end plates at two ends respectively, adjusting bolts are threadedly connected on the two support end plates respectively, clamping plates are rotatably installed at the ends of the two adjusting bolts which are close to each other respectively, and the two clamping plates are used for clamping and fixing the metal material.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] In the utility model, the metal material is fixed between the fixing mechanisms of two rotating discs, the metal material can revolve around the first rotating shaft driven by the first driving motor, and can also rotate by itself under the cooperation of the gear and the inner tooth ring, so that the salt mist spraying head can uniformly spray the salt mist to the upper and lower surfaces of the metal material, and the comprehensiveness and accuracy of the final test result are ensured. ACCURATE DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is the internal structure schematic view of the utility model.

[0015] Figure 2 It is the overhead sectional view of the utility model.

[0016] Figure 3 It is the structure schematic view of the fixing mechanism in the utility model.

[0017] Figure 4This is a schematic diagram of the fit between the gear and the internal gear ring in this utility model.

[0018] 1-Box body, 2-Test chamber, 3-Salt solution storage chamber, 4-Waste liquid recovery chamber, 5-Drain outlet, 6-First rotating shaft, 7-Turntable, 8-First drive motor, 9-Second rotating shaft, 10-Gear, 11-Metal material, 12-Internal gear ring, 13-Salt spray nozzle, 14-Infusion pipe, 15-Submersible pump, 16-Fixing mechanism, 161-Support side plate, 162-Support end plate, 163-Adjusting bolt, 164-Clamping plate, 165-Guide rod, 17-Stirring rod, 18-Second drive motor, 19-Level sensor, 20-Alarm, 21-Drain pipe, 22-Inlet pipe. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] Reference Figures 1-4A salt spray testing device for metallic materials includes a housing 1. A testing chamber 2 is located in the upper part of the housing 1, and a salt solution storage chamber 3 and a waste liquid recovery chamber 4 are located in the lower part of the housing 1. The bottom of the testing chamber 2 is connected to the waste liquid recovery chamber 4 via a drain port 5. A first rotating shaft 6 is rotatably mounted between two opposite side walls inside the testing chamber 2. One end of the first rotating shaft 6 is fixedly connected to the output end of a first drive motor 8 on the outer wall of the housing 1. Turntables 7 are fixedly mounted on the first rotating shaft 6 on both sides of the testing chamber 2. Several second rotating shafts 9 are circumferentially mounted on each of the two turntables 7, and the second rotating shafts 9 on the two turntables 7 are rotatably connected to the turntables 7. Correspondingly, gears 10 are fixedly connected to the ends of the second rotating shafts 9 on the two turntables 7 that are far apart from each other, and fixing mechanisms 16 are fixedly connected to the ends of the second rotating shafts 9 on the two turntables 7 that are close to each other. Metal material 11 is fixed between the two fixing mechanisms 16 on both sides. Internal gear rings 12 are fixedly connected to the side walls of the test chamber 2 corresponding to the periphery of each turntable 7. All gears 10 on each turntable 7 mesh with the corresponding internal gear rings 12. Several salt spray nozzles 13 are installed on the two side walls of the test chamber 2 where internal gear rings 12 are not provided. The salt spray nozzles 13 are all connected to the submersible pump 15 in the salt solution storage chamber 3 through the infusion pipe 14. During testing, the first drive motor 8 drives the first rotating shaft 6 to rotate, and the first rotating shaft 6 drives the two turntables 7 to rotate synchronously. The turntables 7 drive the second rotating shaft, the fixing mechanism 16, and the metal material 11 between the fixing mechanism to revolve around the first rotating shaft 6. Since the gear 10 at one end of the second rotating shaft 9 meshes with the internal gear ring, the metal material 11 will also rotate on its own axis while revolving around the rotating shaft, thereby ensuring that the salt spray nozzles 13 on both sides can spray evenly onto the upper and lower surfaces of the metal material 11.

[0021] Specifically, in this embodiment, each turntable 7 is equipped with four second rotating shafts 9, which can fix four kinds of the same or different metal materials. In other embodiments, the number of second rotating shafts 9 can be set according to specific needs.

[0022] In this embodiment, the fixing mechanism 16 includes a supporting side plate 161. One side of the supporting side plate 161 is fixedly connected to the corresponding second rotating shaft 9, and the two ends of the other side are respectively vertically fixedly connected to supporting end plates 162. Adjusting bolts 163 are threadedly connected to the two supporting end plates 162 respectively. Clamping plates 164 are rotatably installed at the ends of the two adjusting bolts 163 that are close to each other. The two clamping plates 164 are used to clamp and fix the metal material 11. By rotating the adjusting bolts 163, the two clamping plates 164 can be driven to move closer or further apart, so as to facilitate the fixing and disassembly of the metal material 11.

[0023] In this embodiment, guide rods 165 are fixedly connected to the opposite sides of the two clamping plates 164. The guide rods 165 pass through the corresponding support end plates 162 and are slidably connected to the corresponding support end plates 162. The guide rods 165 provide guidance and limitation, thereby preventing the clamping plates 164 from rotating with the rotation of the adjusting bolts 163.

[0024] In this embodiment, a stirring rod 17 is horizontally arranged inside the salt solution storage chamber 3. Stirring blades are mounted on the stirring rod 17. One end of the stirring rod 17 passes through the side wall of the salt solution storage chamber 3 and is fixedly connected to the output shaft of the second drive motor 18 on the outer wall of the housing 1. The second drive motor 18 drives the stirring rod 17 to rotate, thereby using the stirring blades on the stirring rod 17 to stir the salt solution in the salt solution storage chamber 3, preventing precipitation and crystallization.

[0025] In this embodiment, a liquid level sensor 19 is installed on the side wall of the salt solution storage chamber 3, and an alarm 20 is installed on the top of the housing 1. Both the liquid level sensor 19 and the alarm 20 are electrically connected to a PLC controller fixed on the side wall of the housing 1. When the liquid level in the salt solution storage chamber 3 is low, the liquid level sensor 19 can trigger the alarm 20 through the PLC controller, thereby prompting the staff to replenish the liquid.

[0026] In this embodiment, the bottom wall of the test chamber 2 is inclined, and the drain port 5 is located at the lowest end of the bottom wall of the test chamber 2, so as to facilitate the collection of waste liquid and prevent solution residue in the test chamber 2.

[0027] In this embodiment, the bottom of the waste liquid recovery chamber 4 is connected to a drain pipe 21 for discharging waste liquid, and the top of the salt solution storage chamber 3 is connected to an inlet pipe 22 for replenishing salt solution to the salt solution storage chamber 3. Both the drain pipe 21 and the inlet pipe 22 are equipped with switch valves.

[0028] In this embodiment, an end cap is installed on the top of the box 1. After opening the end cap, the metal material 11 can be placed and removed.

[0029] In this embodiment, heating elements and temperature sensors can be installed on the side wall of the test chamber 2 and the side wall of the salt solution storage chamber 3. The temperature sensors are used to monitor the temperature inside the test chamber 2 and the temperature of the salt solution in real time. When the temperature is too low, the PLC controller automatically controls the heating elements to work, thereby ensuring that the temperature inside the test chamber 2 remains constant.

[0030] The above description is merely a preferred embodiment of the present utility model and does not constitute any limitation on the technical scope of the present utility model. Therefore, any minor modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present utility model shall still fall within the scope of the technical solution of the present utility model.

Claims

1. A salt spray testing apparatus for metal materials, characterized by, The utility model provides a salt spray test device, including the box, be provided with test chamber in the upper portion of the box, be provided with salt solution storage chamber and waste liquid recovery chamber in the lower portion of the box, the bottom of test chamber is communicated with waste liquid recovery chamber through liquid discharge port, the first rotation axis is rotatably installed between two opposite side walls in test chamber, one end of first rotation axis is fixedly connected with the output end of first drive motor on the outer wall of box, the rotating disc is fixedly installed on the first rotation axis on the both sides of test chamber, a plurality of second rotation axes are installed on the two rotating discs in the circumferential direction, and the second rotation axes on the two rotating discs are arranged one by one, the gear is fixedly connected to the end of the second rotation axis of two rotating discs away from each other, the second rotation axis of two rotating discs is fixedly connected to the end of the second rotation axis of two rotating discs close to each other, the inner tooth ring is fixedly connected to the periphery of each rotating disc on the side wall of test chamber, all the gears on each rotating disc are engaged with the corresponding inner tooth ring, a plurality of salt fog spray heads are installed on the two side walls of test chamber without inner tooth ring, and the salt fog spray heads are communicated with the submersible pump in the salt solution storage chamber through the liquid delivery pipe.

2. A salt spray testing apparatus for metal materials according to claim 1, wherein The fixing mechanism includes a support side plate, one side of the support side plate is fixedly connected with the corresponding second rotation axis, the other side is fixedly connected with support end plates at both ends perpendicularly, two support end plates are respectively screw-connected with adjusting bolts, two adjusting bolts are respectively rotatably installed with clamping plates at the ends close to each other, and the two clamping plates are used for clamping and fixing the metal material.

3. A salt spray testing apparatus for metal materials according to claim 2, wherein The two clamping plates are respectively fixedly connected with guide rods on the sides away from each other, the guide rods penetrate through the corresponding support end plates and are slidably connected with the corresponding support end plates.

4. The salt spray test apparatus for a metallic material according to claim 1, wherein A stirring rod is horizontally arranged in the salt solution storage chamber, stirring blades are installed on the stirring rod, and one end of the stirring rod penetrates the side wall of the salt solution storage chamber and is fixedly connected with the output shaft of the second drive motor on the outer wall of the box.

5. The salt spray testing apparatus for a metal material according to claim 1, wherein A liquid level sensor is installed on the side wall of the salt solution storage chamber, an alarm is arranged on the top of the box, and the liquid level sensor and the alarm are electrically connected with the PLC controller fixed on the side wall of the box.

6. The salt spray test apparatus for a metallic material according to claim 1, wherein The bottom wall of the test chamber is inclined, and the liquid discharge port is located at the lowest end of the bottom wall of the test chamber.

7. The salt spray testing apparatus for a metallic material according to claim 1, wherein A liquid discharge pipe is communicated with the bottom of the waste liquid recovery chamber, a liquid inlet pipe is communicated with the top of the salt solution storage chamber, and on-off valves are arranged on the liquid discharge pipe and the liquid inlet pipe.

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