Chain ring corrosion test device with complex environment simulation function

Abstract

The invention discloses a chain ring corrosion test device with a complex environment simulation function, and relates to the technical field of corrosion test devices.The test device comprises an environment simulation mechanism, a clamping mechanism, a detection mechanism and a temperature control mechanism, the clamping mechanism is fixedly connected with the environment simulation mechanism, the detection mechanism is fixedly connected with the environment simulation mechanism, and the temperature control mechanism is fixedly connected with the clamping mechanism. The temperature control mechanism is fixedly connected with the environment simulation mechanism, the environment simulation mechanism provides a unified supporting platform and a space closed environment for all the mechanisms, the clamping mechanism achieves adaptive clamping of a workpiece through a multi-dimensional clamp and simulates an applicable environment through stretching and rolling-off actions, and the detection mechanism feeds back and achieves state monitoring. The temperature control mechanism adjusts the environment temperature through cold and hot medium circulation, and therefore the combined effect of multiple factors such as temperature, humidity, corrosivity and stress in the test environment is achieved.

Description

Technical Field

[0001] The invention relates to the technical field of corrosion testing devices, in particular to a chain link corrosion testing device with a complex environment simulation function. Background Art

[0002] Chain link components are widely used in areas such as ship anchoring, port hoisting, mining transportation, and construction machinery. Their service environments are often subject to combined stresses such as high humidity, salt spray, sediment erosion, and mechanical loads. With the development of marine engineering and heavy-duty transportation, the service conditions of chain links have become more stringent, and corrosion failure has become an increasingly prominent problem.

[0003] In the existing technology, such as CN117147423A, traditional chain link corrosion tests still rely on single salt spray tests or static immersion tests, which are difficult to truly reproduce the environment of multiple factors coupled effects such as temperature, humidity, salt spray, sand and water erosion and tensile load during service. Therefore, there is an urgent need for a chain link corrosion test device that can simultaneously load multiple corrosion and mechanical stress conditions to more accurately evaluate the corrosion resistance and service life of the chain link.

[0004] Existing technologies generally lack the ability to test multiple stress conditions such as salt spray corrosion, high-pressure impact flow, water-sand coupled scouring, and mechanical stretching. They usually need to be tested in batches in different equipment, resulting in long test cycles and poor data correlation. The clamping mechanism is mostly fixed or adjusted in a single direction, making it difficult to quickly adapt to workpieces of different shapes and sizes, and lacks dynamic loading capabilities such as stretching and rolling. In the simulation of dust or sand-water scouring, the medium conveying method is single, making it difficult to stably control the particle flow and impact rhythm, and there is a lack of an efficient medium separation and recovery system. The temperature control system is mostly unidirectionally adjusted, with a small heat exchange area, slow temperature change response, high energy consumption, and low medium recycling efficiency. Therefore, those skilled in the art provide a chain link corrosion test device with complex environment simulation function to solve the problems raised in the above background. Summary of the Invention

[0005] The purpose of the present invention is to provide a chain link corrosion testing device with complex environment simulation function to solve the problems raised in the prior art.

[0006] To achieve the above object, the present invention provides the following technical solutions: The test device includes an environmental simulation mechanism, a clamping mechanism, a detection mechanism and a temperature control mechanism. The clamping mechanism and the environmental simulation mechanism are tightly connected, the detection mechanism and the environmental simulation mechanism are tightly connected, and the temperature control mechanism and the environmental simulation mechanism are tightly connected.

[0007] By adopting the above technical solution, the environmental simulation mechanism provides a unified support platform and closed space for each mechanism. The clamping mechanism uses a multi-dimensional fixture to achieve adaptive clamping of the workpiece and stretching and rolling actions to simulate the applicable environment. The detection mechanism provides feedback and realizes status monitoring. The temperature control mechanism adjusts the ambient temperature through the circulation of hot and cold media. This realizes the combined effects of temperature, humidity, corrosion, stress and other factors in the test environment.

[0008] Furthermore, the environmental simulation mechanism includes a test chamber, a supply component and an environmental simulation component. The clamping mechanism, the detection mechanism and the temperature control mechanism are all fastened to the test chamber, the supply component and the test chamber are fastened to each other, the environmental simulation component and the test chamber are fastened to each other, and the environmental simulation component is located at the bottom of the test chamber.

[0009] By adopting the above technical solution, the test chamber serves as the enclosed core space for carrying the test medium and the workpiece being tested. The supply component quantitatively delivers liquid, aerosol, or granular media from the top of the test chamber to the interior, and the environmental simulation component generates or processes the simulated medium at the bottom of the test chamber, achieving continuous changes in environmental conditions and recycling. The test chamber provides sealing and structural support to ensure that the internal environment is controllable; the supply component precisely introduces the required medium into the test area by controlling the spraying, dripping, or delivery method; the environmental simulation component completes the generation, separation, or recycling of the medium at the bottom, and interacts with the gas and liquid flow inside the test chamber to achieve a comprehensive simulation of environmental factors such as temperature, humidity, corrosiveness, and erosion. The layered arrangement of the test chamber, supply component, and environmental simulation component makes the environmental conditions more diverse and the recycling rate of the test medium high.

[0010] Furthermore, the supply assembly includes a droplet nozzle, a salt mist generator, a high-pressure pump, a nozzle and a pulse valve. The droplet nozzle and the test chamber are hinged, the salt mist generator and the droplet nozzle are connected, the droplet nozzle and the salt mist generator are located above the test chamber, the high-pressure pump and the pulse valve are connected, the pulse valve and the nozzle are connected, and the high-pressure pump, the nozzle and the pulse valve are located below the test chamber.

[0011] By adopting the above technical solution, the supply assembly consists of a droplet nozzle, a salt spray generator, a high-pressure pump, a nozzle, and a pulse valve. The droplet nozzle is hingedly mounted above the test chamber and can be adjusted in angle. The salt spray generator is connected to the droplet nozzle and can be used to atomize the salt solution and evenly deliver it to the test area through the nozzle. The droplet nozzle and salt spray generator are arranged above the test chamber to facilitate the simulation of natural environments such as rainfall and salt spray. The high-pressure pump is placed below the test chamber and connected to the pulse valve, which in turn is connected to the nozzle. The pressure provided by the high-pressure pump and the periodic control of the pulse valve achieve intermittent injection of high-energy fluid in the nozzle. At the beginning of the test, the salt spray generator is activated, atomizing the salt solution and delivering it into the test chamber through the droplet nozzle to form a uniform salt spray environment. At the same time, the droplet nozzle can drip liquid medium according to test requirements. The high-pressure pump is activated under the control system command, pushing the liquid through the pulse valve for periodic release, and then through the nozzle to implement impact spray on the surrounding area, simulating wave impact, sand and water scour, etc. The upper drip nozzle and salt spray generator work together to achieve corrosive atomization and droplet simulation. The lower high-pressure pump, pulse valve, and nozzle cooperate to form a controllable impact flow field. The superposition of upper and lower media realizes multi-factor environmental simulation. The effect of this solution is that multiple environmental stress loadings such as salt spray corrosion, droplet erosion, and high-pressure scour can be simultaneously or alternately achieved within the same test space, improving the comprehensiveness and authenticity of the test conditions. At the same time, the rational distribution of various components and the stable supply of media ensure the reliability and repeatability of the test results.

[0012] Furthermore, the environmental simulation component includes a simulation box, a simulation screw rod, a sand inlet pipe, a sand filter plate, a sand discharge motor, a sand discharge valve pipe, a first elastic member, a first electromagnetic block and a first magnetic block. The simulation box and the test box are fastened together, the simulation screw rod and the sand filter plate are rotationally connected, the simulation screw rod and the test box are rotationally connected, the sand discharge motor and the test box are fastened together, the sand discharge motor and the first electromagnetic block are transmission-connected, the first electromagnetic block and the first magnetic block are magnetically repelled by each other, the first magnetic block and the test box are slidingly connected, the first elastic member and the first electromagnetic block are fastened together, the first elastic member and the first magnetic block are fastened together, and the first magnetic block is fastened together. The block is tightly connected to the simulated spiral rod, the simulated spiral rod is slidingly connected to the first electromagnetic block, a sliding groove is provided on the first electromagnetic block, a sliding protrusion is provided on the simulated spiral rod, the sliding protrusion and the sliding groove are slidingly connected, the sand discharge valve pipe is connected to the simulation box, the sand filter plate and the simulation box are tightly connected, a seawater simulation chamber is provided above the simulation box and the sand filter plate, a liquid recovery chamber is provided below the simulation box and the sand filter plate, an inclined surface is provided on the sand filter plate, a sand discharge arc surface is provided on the sand filter plate, the sand discharge arc surface is semi-circular, the inclined surface is used to flow the simulated medium into the sand discharge arc surface, and the sand discharge arc surface is used to simulate the spiral rod to transport sand thereon.

[0013] By adopting the above-mentioned technology, the simulation chamber and the test chamber are tightly connected to form an independent simulation environment chamber; the simulation screw rod is rotatably connected to the sand filter plate and the test chamber respectively, and is tightly engaged with the first magnetic block to achieve sand conveying and stirring; the sand inlet pipe is used to introduce sand into the simulation chamber, and the sand filter plate is tightly connected to the simulation chamber, dividing the chamber into a seawater simulation chamber above and a liquid recovery chamber below; the sand discharge motor is tightly attached to the test chamber and drives the first electromagnetic block to move through transmission. The magnetic poles of the first electromagnetic block and the first magnetic block repel and slide together, and the first elastic member is tightly connected to the first electromagnetic block and the first magnetic block to achieve force buffering and reset; the simulation screw rod is slidably connected to the first electromagnetic block, and its sliding protrusion cooperates with the sliding groove on the first electromagnetic block to achieve reciprocating conveying; the sand discharge valve pipe is connected to the simulation chamber to facilitate directional discharge of sand; the sand filter plate is provided with an inclined surface and a semi-circular sand discharge arc surface. The inclined surface guides sand or medium to the sand discharge arc surface, and the sand discharge arc surface serves as a conveying track for the simulation screw rod to transport sand to a designated location. The sand inlet pipe delivers sand into the simulation chamber. After the water flow in the seawater simulation chamber mixes with the sand, it is continuously transported by the simulated screw rod through the inclined surface of the sand filter plate and the sand discharge arc surface. The sand discharge motor drives the first electromagnetic block to reciprocate, and the magnetic force pushes the first magnetic block and the simulated screw rod to rotate, achieving intermittent advancement and discharge of sand, and then discharges it into the collection system through the sand discharge valve pipe. The liquid is separated by the sand filter plate and enters the liquid recovery chamber to achieve medium circulation. Utilizing the spiral conveying action of the simulated screw rod on the sand discharge arc surface, combined with magnetic transmission and elastic component reset structure, the continuous movement and directional discharge of sand under the action of water flow are achieved, while maintaining medium separation and recovery. The effect of this solution is to stably and controllably simulate the coupled scouring environment of sea sand and water, ensure uniform sand supply and efficient medium circulation, and significantly improve the realism of environmental simulation and the repeatability of test data.

[0014] Furthermore, the environmental simulation mechanism also includes opening and closing side panel doors, screw slides, opening and closing motors, opening and closing screws and opening and closing slides. The opening and closing motors are fastened to the opening and closing side panel doors, the opening and closing motors are transmission-connected to the opening and closing screws, the opening and closing screws and the screw slides are threadedly connected, the opening and closing slides are fastened to the opening and closing side panel doors, the opening and closing slides are slidingly connected to the screw slides, the screw slides are fastened to the test box, and the clamping mechanism includes a winding assembly and a stretching assembly. The winding assembly is fastened to the opening and closing side panel doors, and the stretching assembly is fastened to the test box.

[0015] By adopting the above technical solution, the opening and closing motor is tightly connected to the opening and closing side panel door and drives the opening and closing screw to rotate through the transmission. The opening and closing screw is threadedly connected to the screw guide rail to achieve linear motion along the guide rail. The opening and closing slide rod is tightly connected to the opening and closing side panel door and slides with the screw guide rail, thereby achieving smooth opening and closing of the side panel door under the drive of the opening and closing motor. The screw guide rail is tightly connected to the test chamber to ensure stable operation of the mechanism. The clamping mechanism consists of a winding assembly and a stretching assembly. The winding assembly is tightly connected to the opening and closing side panel door to achieve movement and position adjustment with the opening and closing of the door. The stretching assembly is tightly connected to the test chamber to provide a fixation and stretching effect for the test workpiece. Before the test, the opening and closing motor starts to drive the opening and closing screw to rotate. The threaded transmission drives the opening and closing slide rod and the side panel door to slide smoothly along the screw guide rail to achieve the opening or closing of the test chamber side panel door. The winding assembly moves with the side panel door to a position suitable for workpiece installation. The stretching assembly remains at the fixed end of the test chamber and clamps the workpiece through cooperation. The opening and closing motor drives the screw guide rail threaded pair to achieve precise displacement of the side panel door. The opening and closing slide provides stable guidance. The winding assembly uses the movement of the door to achieve position adjustment. The tensioning assembly is fixed to the test chamber to form a clamping reference surface. These two components work together to clamp and adjust the workpiece. The effect of this solution is to achieve automatic opening and closing of the test chamber side panel door and flexible arrangement of the clamping mechanism, making workpiece installation and removal more convenient and improving test preparation efficiency, while ensuring the accuracy and stability of clamping positioning.

[0016] Furthermore, the winding assembly includes a lifting electric slide, a telescopic electric cylinder, an electric arc slide, a rotating motor, an arc block, a first electric clamp, a single-sided electric clamp, a releasing rotating motor and a rotating plate, the lifting electric slide is fastened to the opening and closing side panel door, the lifting electric slide is transmission-connected to the telescopic electric cylinder, the telescopic electric cylinder and the electric arc slide are transmission-connected, the telescopic electric cylinder and the rotating motor are transmission-connected, the electric arc slide is transmission-connected to the arc block, the releasing rotating motor and the arc block are fastened, the releasing rotating motor and the rotating plate are transmission-connected, the single-sided electric clamp is fastened to the rotating plate, and the single-sided electric clamp abuts against the stretching assembly.

[0017] By adopting the above technical solution, the lifting electric slide is tightly connected to the opening and closing side panel door, responsible for driving the telescopic electric cylinder to lift and lower in the vertical direction; the telescopic electric cylinder forms a transmission connection with the electric arc slide and the rotating motor, adjusting the position of the arc slide through the telescopic stroke and driving the rotating motor to move horizontally; the electric arc slide is transmission-connected to the arc block to adjust the arc trajectory of the clamping position; the release rotation motor is tightly connected to the arc block and transmission-connected to the rotating plate, thereby driving the rotating plate to rotate within the plane; the single-sided electric clamp is fixed to the rotating plate and abuts against the stretching assembly to clamp the workpiece; the first electric clamp is installed on the arc block for clamping on the other side. During the test preparation stage, the lifting electric slide drives the telescopic electric cylinder to move up and down, adjusting the clamp assembly to the appropriate height; the telescopic electric cylinder pushes the electric arc slide along the arc path, and the rotating motor drives the clamp assembly to adjust the angle; the release rotation motor starts, and the rotating plate drives the single-sided electric clamp to rotate to the specified clamping position, cooperating with the clamp on the stretching assembly to complete the workpiece positioning and fixation. Vertical position adjustment is achieved by raising and lowering the electric slide. A telescopic electric cylinder provides forward and backward displacement and rotational drive. The electric curved slide and curved block work together to achieve arc-shaped movement of the gripper. The release of the rotary motor and rotating plate provides planar rotation adjustment. Ultimately, the first electric gripper and the single-sided electric gripper clamp on one side, while the other side hangs above. The flexible clamping angle accommodates workpieces of varying sizes and shapes, enabling fast and stable clamping and improving test preparation efficiency and gripping reliability.

[0018] Furthermore, the stretching assembly includes a stretching single-sided electric claw, a stretching electric cylinder, a self-locking motor, a self-locking plate, a self-locking elastic part, a self-locking block and an abutment block. The single-sided electric claw and the stretching single-sided electric claw are clamped and abutted. The stretching electric cylinder and the test box are fastened and connected. The stretching electric cylinder and the self-locking motor are transmission-connected. The self-locking motor and the self-locking plate are transmission-connected. The single-sided electric claw and the self-locking plate are fastened and connected. The self-locking elastic part and the stretching single-sided electric claw are fastened and connected. The self-locking block and the stretching single-sided electric claw are slidingly connected. The self-locking elastic part and the self-locking block are fastened and connected. The abutment block and the self-locking motor are fastened and connected. The abutment block and the self-locking block are abutted and transmitted. The abutment block is arc-shaped. The abutment block is used to prevent the workpiece from falling off when the stretching single-sided electric claw rotates.

[0019] By adopting the above technical solution, the single-sided electric clamp and the stretching single-sided electric clamp relatively clamp the workpiece to form a stable positioning and conveying clamping; the stretching electric cylinder is fastened to the test box, provides power for the stretching loading through telescopic action, and is connected to the self-locking motor; the self-locking motor drives the self-locking plate to move, the self-locking plate is fastened to the single-sided electric clamp, and the self-locking elastic part is fastened to the stretching single-sided electric clamp to provide return and buffering effects; the self-locking block is slidingly connected to the stretching single-sided electric clamp and is tightly matched with the self-locking elastic part to ensure that it has the ability to follow self-locking when the clamp position changes; the abutment block is fastened to the self-locking motor and abuts against the self-locking block for transmission. The abutment block is an arc-shaped structure, which abuts and protects the workpiece when the stretching single-sided electric clamp rotates to prevent it from falling off. During the clamping phase, the single-sided electric gripper and the stretching single-sided electric gripper close to clamp the workpiece; during the stretching phase, the stretching electric cylinder pushes the self-locking stretching single-sided electric gripper, driving the workpiece to stretch and apply tension on both sides. The self-locking mechanism maintains the position of the gripper stable during the force application process, and assists in returning to its original position when the self-locking elastic part is released; when the gripper rotates or adjusts its angle, the abutment block contacts the self-locking block and protects the workpiece from slipping. The stretching electric cylinder provides the main force, and the self-locking motor and the self-locking plate form a position lock. In conjunction with the elastic limiting structure of the self-locking elastic part and the self-locking block, the stability and adjustability of the gripper during the stretching process are achieved; the arc surface of the abutment block contacts the self-locking block to provide continuous support, preventing the workpiece from falling off due to gravity or tension. The effect of this solution is that it can achieve controllable stretching while ensuring the workpiece is firmly clamped. It has the dual protection of self-locking anti-slip and elastic buffering, significantly improving the safety, stability and adaptability of the tensile test.

[0020] Furthermore, the detection mechanism includes an industrial camera, an electric translation stage, a positioning cylinder and a conductivity probe. The industrial camera and the test box are fastened together, the electric translation stage and the test box are fastened together, the electric translation stage and the positioning cylinder are transmission-connected, and the positioning cylinder and the conductivity probe are transmission-connected.

[0021] By adopting the above technical solution, an industrial camera is securely connected to the test chamber, enabling high-definition imaging and video recording of the workpiece surface during the test. A motorized translation stage is also securely connected to the test chamber and forms a transmission connection with a positioning cylinder, enabling multi-axis precise adjustment of the test position. The positioning cylinder is in transmission connection with a conductivity probe, driving the probe to contact the workpiece surface at a specified location for conductivity measurement. During the test, the industrial camera captures real-time images of changes on the workpiece surface and transmits them to the data processing system. When conductivity testing is required, the motorized translation stage moves the positioning cylinder and conductivity probe to the target test point according to a preset program. The positioning cylinder pushes the conductivity probe into contact with the workpiece surface to complete conductivity signal acquisition. The industrial camera utilizes optical imaging technology for non-contact condition monitoring, the motorized translation stage locates the test point, and the positioning cylinder uses pneumatic or electric thrust to drive the conductivity probe into stable contact with the workpiece surface. The electrical signal collected by the conductivity probe reflects changes in the workpiece's surface conductivity, thereby assessing corrosion, coating damage, and other conditions. This realizes the organic combination of image monitoring and electrical performance testing, which can not only observe the surface morphology changes of the workpiece in real time, but also synchronously obtain its electrical characteristic data, thereby improving the detection accuracy and providing an analysis basis for the test results.

[0022] Furthermore, the temperature control mechanism includes a heating box, a cooling box, a recovery pump, a circulation pump and a temperature control tube. The cooling box and the circulation pump are connected, the circulation pump and the temperature control tube are connected, the temperature control tube is arranged in a serpentine shape, the temperature control tube and the heating box are connected, the recovery pump and the dripping nozzle are connected, the recovery pump and the liquid recovery chamber are connected, and the heating box, the cooling box and the circulation pump are all firmly connected to the test box.

[0023] By adopting the above technical solution, the cooling box is connected to the circulation pump to provide low-temperature medium circulation, and the circulation pump is connected to the serpentine-arranged temperature control tube, so that the cooling or heating medium forms a large-area heat exchange path inside the test box; the other end of the temperature control tube is connected to the heating box, and the heating box provides a stable heat source for the medium; the recovery pump is connected to the dripping nozzle to transport the recovered liquid to the nozzle again for recycling, and at the same time, the recovery pump is connected to the liquid recovery chamber to recycle the medium liquid collected during the test into the system; before the test starts, the target temperature is set according to demand, and the circulation pump is started to drive the medium in the cooling box or heating box into the temperature control tube. The serpentine-arranged temperature control tube fully exchanges heat with the test environment in the test box to achieve temperature rise and fall control; after the test medium is used, the liquid is collected through the liquid recovery chamber, transported to the dripping nozzle by the recovery pump, and re-enters the test cycle. A heating box and a cooling box provide high-temperature and low-temperature media, respectively. A circulating pump drives the media through the temperature-controlled tube. Its serpentine arrangement increases the contact area with the test space, thereby improving heat exchange efficiency. A recovery pump returns the collected media in a closed loop, forming an energy-saving circulation system. This allows for regulation and control of ambient temperature during the test, while reducing media consumption and operating costs. It also ensures the stability and repeatability of test temperature conditions, thereby enhancing the reliability and adaptability of environmental simulation tests.

[0024] Compared with the prior art, the present invention has the following beneficial effects: The environmental simulation mechanism of this test device uses a test chamber as a closed containment chamber. A droplet spray nozzle and salt spray generator are located above, while a high-pressure pump, pulse valve, and nozzle are located below. The bottom chamber comprises a simulation chamber, sand filter plate, and simulated screw. The nozzle and salt spray generator are articulated and connected to simulate salt spray corrosion and droplet impact. The high-pressure pump, via a pulse valve, controls intermittent spraying from the nozzle, creating an impact flow field. The sand filter plate within the bottom simulation chamber features an inclined surface and a semicircular sand discharge arc. This, combined with the spiral conveying action of the simulated screw and the sand inlet pipe, simulates a cyclical water-sand scouring environment. The repulsive magnetic poles of the first electromagnetic block and the first magnetic block, coupled with a first elastic element for buffering and reset, ensure the rhythmic and stable sand transport. The clamping mechanism mechanically combines the guide transmission relationship between the opening and closing side panel door and the lead screw guide rail. The side panel door is opened and closed by the opening and closing motor driving the opening and closing screw. The threaded pair of the lead screw and the guide rail provides linear motion, while the opening and closing slide ensures stable door guidance. The winding component is composed of a lifting electric slide, a telescopic electric cylinder, an electric arc slide, a rotating motor, an arc block and a clamping claw. The three-dimensional positioning of the clamping claw can be achieved through vertical lifting, arc trajectory adjustment and plane rotation of the rotating plate; the stretching component is composed of a stretching single-sided electric clamp, a stretching electric cylinder, a self-locking mechanism and abutment block. The main pulling force is provided by the stretching electric cylinder, and the self-locking plate and the self-locking elastic part realize the locking and buffering of the clamping claw position. The arc-shaped abutment block holds the workpiece when the clamping claw rotates to prevent slipping, ensuring the stability and safety of the loading process; the temperature control mechanism is structurally composed of a heating box, a cooling box, a circulation pump, a recovery pump and a serpentine-arranged temperature control tube. The cooling box is connected to the circulation pump to provide low-temperature circulation, and the heating box is connected to the temperature control tube to provide high-temperature circulation. The serpentine temperature control tube has a large coverage area in the test chamber and high heat exchange efficiency; the recovery pump is bidirectionally connected to the liquid recovery chamber and the dripping nozzle to realize closed-circuit recovery and re-injection of the test medium. Each component is fastened and connected to the pipeline to form a complete hot and cold switching and medium circulation path, which can not only accurately control the ambient temperature but also ensure the efficient use of the test medium. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the structure of the environmental simulation component of the present invention; Figure 3 This is a schematic diagram of the sliding protrusion structure of the present invention; Figure 4 This is a schematic structural diagram of the winding assembly of the present invention; Figure 5 This is a schematic structural diagram of the stretching assembly of the present invention; Figure 6 This is a schematic diagram of the self-locking block structure of the present invention; Figure 7 Schematic diagram of the detection mechanism structure of the present invention; Figure 8 It is a schematic structural diagram of the temperature control mechanism of the present invention.

[0026] In the figure: 1. environmental simulation mechanism; 11. test chamber; 12. supply assembly; 121. dripping nozzle; 122. salt spray generator; 123. high-pressure pump; 124. nozzle; 125. pulse valve; 13. environmental simulation assembly; 131. simulation chamber; 132. simulation screw rod; 1321. sliding protrusion; 133. sand inlet pipe; 134. sand filter plate; 1341. seawater simulation chamber; 1342. liquid recovery chamber; 1343. inclined plane; 1344. sand discharge arc surface; 135. sand discharge motor; 136. sand discharge valve pipe; 137. first elastic member; 138. first electromagnetic block; 1381. sliding groove; 139. first magnetic block; 14. opening and closing side panel door; 15. screw guide rail; 16. opening and closing motor; 17. opening and closing screw rod; 18. opening and closing Slide rod; 2. Clamping mechanism; 21. Winding assembly; 211. Lifting electric slide rail; 212. Telescopic electric cylinder; 213. Electric arc slide rail; 214. Rotating motor; 215. Arc block; 216. First electric clamp; 217. Single-sided electric clamp; 218. Release rotation motor; 219. Rotating plate; 22. Stretching assembly; 221. Stretching single-sided electric clamp; 222. Stretching electric cylinder; 223. Self-locking motor; 224. Self-locking plate; 225. Self-locking elastic part; 226. Self-locking block; 227. Abutment block; 3. Detection mechanism; 31. Industrial camera; 32. Electric translation stage; 33. Positioning cylinder; 34. Conductivity probe; 4. Temperature control mechanism; 41. Heating box; 42. Cooling box; 43. Recovery pump; 44. Circulation pump; 45. Temperature control tube. DETAILED DESCRIPTION

[0027] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments 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 creative efforts are within the scope of protection of the present invention.

[0028] See also Figure 1 - Figure 8 As shown, the present invention provides a technical solution for a chain link corrosion test device with complex environment simulation function: The test device includes an environmental simulation mechanism 1, a clamping mechanism 2, a detection mechanism 3 and a temperature control mechanism 4. The clamping mechanism 2 and the environmental simulation mechanism 1 are tightly connected, the detection mechanism 3 and the environmental simulation mechanism 1 are tightly connected, and the temperature control mechanism 4 and the environmental simulation mechanism 1 are tightly connected.

[0029] By adopting the above technical solution, the environmental simulation mechanism 1 provides a unified support platform and a closed space for all mechanisms. The clamping mechanism 2 uses a multi-dimensional fixture to achieve adaptive clamping of the workpiece and stretching and rolling movements to simulate the applicable environment. The detection mechanism 3 provides feedback and realizes status monitoring. The temperature control mechanism 4 regulates the ambient temperature by circulating hot and cold media. This achieves the combined effects of multiple factors such as temperature, humidity, corrosion, and stress in the test environment.

[0030] Furthermore, the environmental simulation mechanism 1 includes a test chamber 11, a supply component 12 and an environmental simulation component 13. The clamping mechanism 2, the detection mechanism 3 and the temperature control mechanism 4 are all fastened to the test chamber 11. The supply component 12 and the test chamber 11 are fastened to each other. The environmental simulation component 13 and the test chamber 11 are fastened to each other. The environmental simulation component 13 is located at the bottom of the test chamber 11.

[0031] By adopting the above technical solution, the test chamber 11 serves as a closed core space for carrying the test medium and the workpiece to be tested. The supply component 12 quantitatively delivers liquid, aerosol, or granular media to the interior of the test chamber 11 from the top. The environmental simulation component 13 generates or processes the simulated medium at the bottom of the test chamber 11, achieving continuous changes in environmental conditions and recycling. The test chamber 11 provides sealing and structural support to ensure that the internal environment is controllable. The supply component 12 accurately introduces the required medium into the test area by controlling the spraying, dripping, or delivery method. The environmental simulation component 13 completes the generation, separation, or recycling of the medium at the bottom and interacts with the gas-liquid flow inside the test chamber 11 to achieve a comprehensive simulation of environmental factors such as temperature, humidity, corrosiveness, and scouring. The upper and lower layered arrangement of the test chamber 11, the supply component 12, and the environmental simulation component 13 makes the environmental conditions more diverse and the recycling rate of the test medium high.

[0032] Furthermore, the supply assembly 12 includes a droplet nozzle 121, a salt mist generator 122, a high-pressure pump 123, a nozzle 124 and a pulse valve 125. The droplet nozzle 121 is hinged to the test box 11, the salt mist generator 122 is connected to the droplet nozzle 121, the droplet nozzle 121 and the salt mist generator 122 are located above the test box 11, the high-pressure pump 123 is connected to the pulse valve 125, the pulse valve 125 is connected to the nozzle 124, and the high-pressure pump 123, the nozzle 124 and the pulse valve 125 are located below the test box 11.

[0033] By adopting the above technical solution, the supply assembly 12 consists of a droplet nozzle 121, a salt mist generator 122, a high-pressure pump 123, a nozzle 124 and a pulse valve 125. The droplet nozzle 121 is installed above the test box 11 in a hinged manner and can be adjusted in angle. The salt mist generator 122 is connected to the droplet nozzle 121 and can be used to atomize the salt solution and evenly transport it to the test area through the nozzle; the droplet nozzle 121 and the salt mist generator 122 are arranged as a whole above the test box 11 to facilitate simulation of natural environments such as rainfall and salt mist; the high-pressure pump 123 is arranged below the test box 11 and is connected to the pulse valve 125, which is in turn connected to the nozzle 124. The intermittent injection of high-energy fluid in the nozzle 124 is achieved through the pressure provided by the high-pressure pump 123 and the periodic control of the pulse valve 125. At the start of the test, the salt spray generator 122 is activated, atomizing the salt solution and delivering it through the dripping nozzle 121 into the test chamber 11 to create a uniform salt spray environment. The dripping nozzle 121 can also drip liquid media according to test requirements. The high-pressure pump 123, activated by the control system, periodically releases liquid through the pulse valve 125, which then impacts the surrounding area through the nozzle 124, simulating conditions such as wave impact and sand and water scour. The dripping nozzle 121 and salt spray generator 122 work together to produce corrosive atomization and droplet simulation. The high-pressure pump 123, pulse valve 125, and nozzle 124 at the bottom work together to form a controllable impact flow field. The superposition of the upper and lower media allows for multi-factor environmental simulation. This solution allows for simultaneous or alternating application of multiple environmental stresses, including salt spray corrosion, droplet erosion, and high-pressure scour, within the same test chamber, enhancing the comprehensiveness and authenticity of the test conditions. Furthermore, the rational distribution of components and stable media supply ensure the reliability and repeatability of test results.

[0034] Furthermore, the environmental simulation component 13 includes a simulation box 131, a simulation screw rod 132, a sand inlet pipe 133, a sand filter plate 134, a sand discharge motor 135, a sand discharge valve pipe 136, a first elastic member 137, a first electromagnetic block 138 and a first magnetic block 139. The simulation box 131 is fastened to the test box 11, the simulation screw rod 132 is rotatably connected to the sand filter plate 134, the simulation screw rod 132 is rotatably connected to the test box 11, the sand discharge motor 135 is fastened to the test box 11, the sand discharge motor 135 is transmission-connected to the first electromagnetic block 138, the first electromagnetic block 138 and the first magnetic block 139 are magnetically repelled by each other, the first magnetic block 139 is slidingly connected to the test box 11, the first elastic member 137 is fastened to the first electromagnetic block 138, the first elastic member 137 is fastened to the first magnetic block 139, and the first magnetic block 139 and the simulation screw rod are fastened to each other. 132 is tightly connected, the simulated screw rod 132 and the first electromagnetic block 138 are slidingly connected, the first electromagnetic block 138 is provided with a sliding groove 1381, the simulated screw rod 132 is provided with a sliding protrusion 1321, the sliding protrusion 1321 and the sliding groove 1381 are slidingly connected, the sand discharge valve pipe 136 is connected to the simulation box 131, the sand filter plate 134 is tightly connected to the simulation box 131, the upper part surrounded by the simulation box 131 and the sand filter plate 134 is provided with a seawater simulation chamber 1341, and the lower part surrounded by the simulation box 131 and the sand filter plate 134 is provided with a liquid recovery chamber 1342, the sand filter plate 134 is provided with an inclined surface 1343, and the sand filter plate 134 is provided with a sand discharge arc surface 1344. The sand discharge arc surface 1344 is semi-circular, and the inclined surface 1343 is used to flow the simulated medium into the sand discharge arc surface 1344. The sand discharge arc surface 1344 is used to simulate the screw rod 132 to transport sand thereon.

[0035] By adopting the above-mentioned technical solution, the simulation box 131 is fastened to the test box 11 to form an independent simulation environment chamber; the simulation screw rod 132 is rotatably connected to the sand filter plate 134 and the test box 11 respectively, and is fastened to the first magnetic block 139 to realize sand transportation and stirring; the sand inlet pipe 133 is used to introduce sand into the simulation box 131, and the sand filter plate 134 is fastened to the simulation box 131 to separate the chamber into the seawater simulation chamber 1341 above and the liquid recovery chamber 1342 below; the sand discharge motor 135 is fastened to the test box 11, and drives the first electromagnetic block 138 to move through the transmission, and the magnetic poles of the first electromagnetic block 138 and the first magnetic block 139 repel and slide In coordination, the first elastic member 137 is simultaneously fastened to the first electromagnetic block 138 and the first magnetic block 139 to achieve force buffering and resetting; the simulated screw rod 132 is slidingly connected to the first electromagnetic block 138, and its sliding protrusion 1321 cooperates with the sliding groove 1381 on the first electromagnetic block 138 for transmission to achieve reciprocating conveying; the sand discharge valve pipe 136 is connected to the simulation box 131 to facilitate directional discharge of sand; the sand filter plate 134 is provided with a slope 1343 and a semicircular sand discharge arc surface 1344. The slope 1343 guides the sand or medium to the sand discharge arc surface 1344. The sand discharge arc surface 1344 serves as a conveying track for the simulated screw rod 132 to transport the sand to the designated position. Sand inlet pipe 133 delivers sand into simulation chamber 131. After mixing with the water in seawater simulation chamber 1341, the sand is continuously conveyed by simulated screw 132 through inclined surface 1343 and sand discharge arc 1344 of sand filter plate 134. Sand discharge motor 135 drives first electromagnetic block 138 to reciprocate, magnetically driving first magnetic block 139 and simulated screw 132 to rotate, achieving intermittent advancement and discharge of sand, which is then discharged into the collection system through sand discharge valve pipe 136. Liquid is separated by sand filter plate 134 and enters liquid recovery chamber 1342, achieving medium circulation. The spiral conveying action of simulated screw 132 on sand discharge arc 1344, combined with magnetic transmission and elastic reset structure, achieves continuous movement and directional discharge of sand under the action of water flow, while maintaining medium separation and recovery. The effect of this solution is that it can stably and controllably simulate the coupled scouring environment of sea sand and water, ensure uniform sand supply and efficient medium circulation, and significantly improve the realism of environmental simulation and the repeatability of test data.

[0036] Furthermore, the environmental simulation mechanism 1 also includes an opening and closing side panel door 14, a screw slide rail 15, an opening and closing motor 16, an opening and closing screw 17 and an opening and closing slide rod 18. The opening and closing motor 16 is fastened to the opening and closing side panel door 14, the opening and closing motor 16 is transmission-connected to the opening and closing screw 17, the opening and closing screw 17 is threadedly connected to the screw slide rail 15, the opening and closing slide rod 18 is fastened to the opening and closing side panel door 14, the opening and closing slide rod 18 is slidingly connected to the screw slide rail 15, the screw slide rail 15 is fastened to the test box 11, and the clamping mechanism 2 includes a winding assembly 21 and a stretching assembly 22. The winding assembly 21 is fastened to the opening and closing side panel door 14, and the stretching assembly 22 is fastened to the test box 11.

[0037] By adopting the above technical solution, the opening and closing motor 16 is tightly connected to the opening and closing side panel door 14 and drives the opening and closing screw 17 to rotate through the transmission. The opening and closing screw 17 is threadedly connected to the screw guide rail 15 to achieve linear motion along the guide rail. The opening and closing slide 18 is tightly connected to the opening and closing side panel door 14 and slides with the screw guide rail 15, thereby achieving smooth opening and closing of the side panel door under the drive of the opening and closing motor 16. The screw guide rail 15 is tightly connected to the test box 11 to ensure stable operation of the mechanism. The clamping mechanism 2 consists of a winding assembly 21 and a stretching assembly 22. The winding assembly 21 is tightly connected to the opening and closing side panel door 14 to achieve movement and position adjustment with the door opening and closing. The stretching assembly 22 is tightly connected to the test box 11 to provide fixation and stretching for the test workpiece. Before the test, the opening and closing motor 16 starts to drive the opening and closing screw 17 to rotate, and the threaded transmission drives the opening and closing slide 18 and the side panel door to slide smoothly along the screw guide 15, so as to realize the opening or closing of the side panel door of the test box 11; the winding assembly 21 moves with the side panel door to a position suitable for the installation of the workpiece, and the stretching assembly 22 remains at the fixed end of the test box 11, and clamps the workpiece through cooperation. The opening and closing motor 16 drives the screw guide 15 thread pair to realize the precise displacement of the side panel door, the opening and closing slide 18 provides a stable guide, the winding assembly 21 realizes position adjustment by means of the movement of the door body, and the stretching assembly 22 is fixed on the test box 11 to form a clamping reference surface, and the two cooperate to complete the clamping and adjustment of the workpiece. The effect of this solution is to realize the automatic opening and closing of the side panel door of the test box 11 and the flexible arrangement of the clamping mechanism 2, making the installation and disassembly of the workpiece more convenient, improving the efficiency of test preparation, and ensuring the accuracy and stability of the clamping positioning.

[0038] Furthermore, the winding assembly 21 includes a lifting electric slide 211, a telescopic electric cylinder 212, an electric arc slide 213, a rotating motor 214, an arc block 215, a first electric clamp 216, a single-sided electric clamp 217, a release rotating motor 218 and a rotating plate 219. The lifting electric slide 211 is fastened to the opening and closing side panel door 14, the lifting electric slide 211 is transmission-connected to the telescopic electric cylinder 212, the telescopic electric cylinder 212 is transmission-connected to the electric arc slide 213, the telescopic electric cylinder 212 is transmission-connected to the rotating motor 214, the electric arc slide 213 is transmission-connected to the arc block 215, the release rotating motor 218 is fastened to the arc block 215, the release rotating motor 218 is transmission-connected to the rotating plate 219, the single-sided electric clamp 217 is fastened to the rotating plate 219, and the single-sided electric clamp 217 is in contact with the stretching assembly 22.

[0039] By adopting the above technical solution, the lifting electric slide 211 is tightly connected to the opening and closing side panel door 14, responsible for driving the telescopic electric cylinder 212 to lift and lower in the vertical direction; the telescopic electric cylinder 212 forms a transmission connection with the electric arc slide 213 and the rotating motor 214, and adjusts the position of the arc slide through the telescopic stroke and drives the rotating motor 214 to move horizontally; the electric arc slide 213 is transmission-connected to the arc block 215 to realize the arc trajectory adjustment of the clamping position; the release rotation motor 218 is tightly connected to the arc block 215, and is transmission-connected to the rotating plate 219, thereby driving the rotating plate 219 to rotate in the plane; the single-sided electric clamp 217 is fixed on the rotating plate 219, and abuts against the stretching assembly 22 to clamp the workpiece; the first electric clamp 216 is installed on the arc block 215 for clamping on the other side. During the test preparation phase, the lifting electric slide 211 drives the telescopic electric cylinder 212 up and down, adjusting the clamping jaw assembly to the appropriate height. The telescopic electric cylinder 212 pushes the electric curved slide 213 along an arc path, and the rotating motor 214 drives the clamping jaw assembly to adjust its angle. The release of the rotating motor 218 activates, and the rotating plate 219 drives the single-sided electric clamping jaw 217 to rotate to the designated clamping position, collaborating with the clamping jaw on the stretching assembly 22 to position and secure the workpiece. Vertical position adjustment is achieved by lifting the electric slide 211. The telescopic electric cylinder 212 provides forward and backward displacement and rotational driving force. The electric curved slide 213 cooperates with the arc block 215 to achieve arc-path movement of the clamping jaw. The release of the rotating motor 218 and the rotating plate 219 provide planar rotational adjustment. Ultimately, the first electric clamping jaw 216 and the single-sided electric clamping jaw 217 clamp one side, while the other side is suspended above. The flexible clamping angle accommodates workpieces of varying sizes and shapes, enabling fast and stable clamping and improving test preparation efficiency and clamping reliability.

[0040] Furthermore, the stretching assembly 22 includes a stretching unilateral electric claw 221, a stretching electric cylinder 222, a self-locking motor 223, a self-locking plate 224, a self-locking elastic member 225, a self-locking block 226 and an abutment block 227. The unilateral electric clamp 217 and the stretching unilateral electric claw 221 are clamped and abutted. The stretching electric cylinder 222 is fastened to the test box 11. The stretching electric cylinder 222 is connected to the self-locking motor 223 for transmission connection. The self-locking motor 223 is connected to the self-locking plate 224 for transmission connection. The unilateral electric clamp The claw 217 is tightly connected to the self-locking plate 224, the self-locking elastic member 225 is tightly connected to the stretching single-sided electric claw 221, the self-locking block 226 is slidingly connected to the stretching single-sided electric claw 221, the self-locking elastic member 225 and the self-locking block 226 are tightly connected, the abutment block 227 and the self-locking motor 223 are tightly connected, the abutment block 227 and the self-locking block 226 are abutted for transmission, the abutment block 227 is arc-shaped, and the abutment block 227 is used to prevent the workpiece from falling off when the stretching single-sided electric claw 221 rotates.

[0041] By adopting the above technical solution, the single-sided electric clamp 217 and the stretching single-sided electric clamp 221 clamp the workpiece relative to each other, forming a stable positioning and conveying clamping; the stretching electric cylinder 222 is fastened to the test box 11, provides power for the stretching loading through telescopic action, and is connected to the self-locking motor 223 for transmission; the self-locking motor 223 drives the self-locking plate 224 to move, the self-locking plate 224 is fastened to the single-sided electric clamp 217, and the self-locking elastic member 225 is fastened to the stretching single-sided electric clamp 221, providing return and buffering effects; the self-locking block 226 is slidably connected to the stretching single-sided electric clamp 221, and is tightly matched with the self-locking elastic member 225 to ensure that it has the ability to follow the self-locking when the clamp position changes; the abutment block 227 is fastened to the self-locking motor 223, and is abutted and transmitted with the self-locking block 226. The abutment block 227 is an arc-shaped structure, which abuts and protects the workpiece when the stretching single-sided electric clamp 221 rotates to prevent it from falling off. During the clamping phase, the single-sided electric clamp 217 and the stretching single-sided electric clamp 221 close to clamp the workpiece. During the stretching phase, the stretching electric cylinder 222 pushes the self-locking stretching single-sided electric clamp 221, driving the workpiece to stretch and apply tension on both sides. The self-locking mechanism maintains the position of the clamp stable during the force application process, and the self-locking elastic member 225 assists in returning to its original position when released. When the clamp rotates or adjusts its angle, the abutment block 227 contacts the self-locking block 226 and protects the workpiece from slipping. The stretching electric cylinder 222 provides the main force, and the self-locking motor 223 and the self-locking plate 224 form a position lock. In conjunction with the elastic limiting structure of the self-locking elastic member 225 and the self-locking block 226, the stability and adjustability of the clamp during the stretching process are achieved. The arc surface of the abutment block 227 contacts the self-locking block 226 to provide continuous support, preventing the workpiece from falling due to gravity or tension. The effect of this solution is that it can achieve controllable stretching while ensuring that the workpiece is firmly clamped. It has dual protection of self-locking anti-slip and elastic buffering, which significantly improves the safety, stability and adaptability of tensile tests.

[0042] Furthermore, the detection mechanism 3 includes an industrial camera 31, an electric displacement stage 32, a positioning cylinder 33 and a conductivity probe 34. The industrial camera 31 is fastened to the test box 11, the electric displacement stage 32 is fastened to the test box 11, the electric displacement stage 32 is transmission-connected to the positioning cylinder 33, and the positioning cylinder 33 is transmission-connected to the conductivity probe 34.

[0043] By employing this technical solution, an industrial camera 31 is securely connected to the test chamber 11, enabling high-definition imaging and video recording of the workpiece surface during testing. A motorized translation stage 32 is also securely connected to the test chamber 11 and forms a transmission connection with a positioning cylinder 33, enabling precise multi-axis adjustment of the test position. The positioning cylinder 33 is in transmission connection with a conductivity probe 34, driving the probe to contact the workpiece surface at a specified location for conductivity measurement. During the test, the industrial camera 31 captures real-time images of changes in the workpiece surface and transmits them to the data processing system. When conductivity testing is required, the motorized translation stage 32, following a pre-set program, moves the positioning cylinder 33 and conductivity probe 34 to the target test point. The positioning cylinder 33 then pushes the conductivity probe 34 into contact with the workpiece surface, completing the conductivity signal acquisition. An industrial camera 31 utilizes optical imaging technology for contactless condition monitoring. A motorized translation stage 32 locates the test site. A positioning cylinder 33 uses pneumatic or electric thrust to drive a conductivity probe 34 into stable contact with the workpiece surface. The electrical signal collected by the conductivity probe 34 reflects changes in the workpiece's surface conductivity, allowing assessment of corrosion, coating damage, and other conditions. This seamlessly integrates image monitoring with electrical performance testing, enabling real-time observation of changes in the workpiece's surface topography while simultaneously acquiring electrical characteristic data. This improves detection accuracy and provides a basis for analyzing test results.

[0044] Furthermore, the temperature control mechanism 4 includes a heating box 41, a cooling box 42, a recovery pump 43, a circulation pump 44 and a temperature control tube 45. The cooling box 42 is connected to the circulation pump 44, and the circulation pump 44 is connected to the temperature control tube 45. The temperature control tube 45 is arranged in a serpentine shape. The temperature control tube 45 is connected to the heating box 41, the recovery pump 43 is connected to the dripping nozzle 121, and the recovery pump 43 is connected to the liquid recovery chamber 1342. The heating box 41, the cooling box 42 and the circulation pump 44 are all fastened to the test box 11.

[0045] By adopting the above technical solution, the cooling box 42 is connected to the circulation pump 44 for providing low-temperature medium circulation. The circulation pump 44 is connected to the serpentine-arranged temperature control tube 45, so that the cooling or heating medium forms a heat exchange path covering a large area inside the test box 11. The other end of the temperature control tube 45 is connected to the heating box 41, which provides a stable heat source for the medium. The recovery pump 43 is connected to the dripping nozzle 121 for transporting the recovered liquid back to the nozzle for recycling. At the same time, the recovery pump 43 is connected to the liquid recovery chamber 1342 to recycle the medium liquid collected during the test into the system. Before the test begins, the target temperature is set according to the demand, and the circulation pump 44 is started to drive the medium in the cooling box 42 or heating box 41 into the temperature control tube 45. The serpentine-arranged temperature control tube 45 fully exchanges heat with the test environment in the test box 11 to achieve temperature rise and fall control. After the test medium is used, the liquid is collected in the liquid recovery chamber 1342 and transported to the dripping nozzle 121 by the recovery pump 43, re-entering the test cycle. A heating box 41 and a cooling box 42 provide high-temperature and low-temperature media, respectively. A circulating pump 44 drives the media through a temperature-controlled tube 45. The serpentine arrangement increases the contact area with the test space, thereby improving heat exchange efficiency. A recovery pump 43 returns the collected media in a closed loop, forming an energy-saving circulation system. This allows for regulation and control of ambient temperature during the test, while reducing media consumption and operating costs. It also ensures the stability and repeatability of test temperature conditions, thereby enhancing the reliability and adaptability of environmental simulation tests.

[0046] Working principle of the present invention: The environmental simulation mechanism 1 of this test device uses a test box 11 as a closed carrying space, with a dripping nozzle 121 and a salt spray generator 122 arranged on the top, a high-pressure pump 123, a pulse valve 125 and a nozzle 124 arranged on the bottom, and a combined structure of a simulation box 131, a sand filter plate 134 and a simulation screw rod 132 at the bottom. The upper nozzle and salt spray generator 122 are hinged and connected to each other, which can realize the simulation of salt spray corrosion and droplet impact. The lower high-pressure pump 123 controls the intermittent spraying of the nozzle 124 through the pulse valve 125 to form an impact flow field. The sand filter plate 134 in the bottom simulation box 131 is provided with an inclined surface 1343 and a semi-circular sand discharge arc surface 1344, which cooperate with the spiral conveying action of the simulated screw rod 132 and the feeding of the sand inlet pipe 133 to realize the cyclic simulation of the water-sand coupled scouring environment. The first electromagnetic block 138 and the first magnetic block 139 repel each other and the first elastic member 137 buffers and resets to ensure the rhythm and stability of sand material conveying. The clamping mechanism 2 mechanically combines the guide transmission relationship between the opening and closing side panel door 14 and the screw slide rail 15. The opening and closing of the side panel door is realized by the opening and closing motor 16 driving the opening and closing screw rod 17. The screw rod and the slide rail thread pair provide linear motion, and the opening and closing slide rod 18 ensures the smooth guidance of the door body. The winding assembly 21 is composed of a lifting electric slide 211, a telescopic electric cylinder 212, an electric arc slide 213, a rotating motor 214, an arc block 215 and a clamping claw. The three-dimensional positioning of the clamping claw can be achieved by vertical lifting, arc trajectory adjustment and plane rotation of the rotating plate 219; the stretching assembly 22 is composed of a stretching single-side electric claw 221, a stretching electric cylinder 222, a self-locking mechanism and an abutment block 227. The main pulling force is provided by the stretching electric cylinder 222, and the self-locking plate 224 and the self-locking elastic member 225 realize the locking and buffering of the clamping claw position. The arc-shaped abutment block 227 is in the clamping position. When the claw rotates, it holds the workpiece against it to prevent it from slipping, ensuring the stability and safety of the loading process. The temperature control mechanism 4 is structurally composed of a heating box 41, a cooling box 42, a circulation pump 44, a recovery pump 43, and a serpentine-shaped temperature control tube 45. The cooling box 42 is connected to the circulation pump 44 to provide low-temperature circulation, and the heating box 41 is connected to the temperature control tube 45 to provide high-temperature circulation. The serpentine temperature control tube 45 has a large coverage area within the test chamber 11 and high heat exchange efficiency. The recovery pump 43 is bidirectionally connected to the liquid recovery chamber 1342 and the drip nozzle 121 to achieve closed-loop recovery and re-injection of the test medium. Each component is fastened to the pipeline to form a complete hot and cold switching and medium circulation path, which can not only accurately control the ambient temperature but also ensure the efficient use of the test medium.

[0047] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the invention can be embodied in other specific forms without departing from the spirit or essential characteristics of the invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be included therein. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

Claims

1. A chain link corrosion test device with complex environment simulation function, characterized by: The test device comprises an environmental simulation mechanism (1), a clamping mechanism (2), a detection mechanism (3) and a temperature control mechanism (4); the clamping mechanism (2) and the environmental simulation mechanism (1) are tightly connected; the detection mechanism (3) and the environmental simulation mechanism (1) are tightly connected; and the temperature control mechanism (4) and the environmental simulation mechanism (1) are tightly connected; The environmental simulation mechanism (1) comprises a test box (11), a supply assembly (12) and an environmental simulation assembly (13); the clamping mechanism (2), the detection mechanism (3) and the temperature control mechanism (4) are all fastened to the test box (11); the supply assembly (12) and the test box (11) are fastened to each other; the environmental simulation assembly (13) and the test box (11) are fastened to each other; and the environmental simulation assembly (13) is located at the bottom of the test box (11).

2. The chain link corrosion testing device with complex environment simulation function according to claim 1, characterized in that: The supply assembly (12) includes a droplet nozzle (121), a salt mist generator (122), a high-pressure pump (123), a nozzle (124) and a pulse valve (125); the droplet nozzle (121) is hinged to the test box (11); the salt mist generator (122) and the droplet nozzle (121) are connected; the droplet nozzle (121) and the salt mist generator (122) are located above the test box (11); the high-pressure pump (123) and the pulse valve (125) are connected; the pulse valve (125) and the nozzle (124) are connected; the high-pressure pump (123), the nozzle (124) and the pulse valve (125) are located below the test box (11).

3. The chain link corrosion testing device with complex environment simulation function according to claim 2, characterized in that: The environmental simulation component (13) includes a simulation box (131), a simulation screw rod (132), a sand inlet pipe (133), a sand filter plate (134), a sand discharge motor (135), a sand discharge valve pipe (136), a first elastic member (137), a first electromagnetic block (138) and a first magnetic block (139); the simulation box (131) and the test box (11) are fastened together; the simulation screw rod (132) and the sand filter plate (134) are rotationally connected; the simulation screw rod (132) and the test box (11) are rotationally connected; The sand removal motor (135) is fastened to the test box (11), the sand removal motor (135) is transmission-connected to the first electromagnetic block (138), the first electromagnetic block (138) and the first magnetic block (139) are magnetically pole-repelling transmission, the first magnetic block (139) and the test box (11) are slidingly connected, the first elastic member (137) is fastened to the first electromagnetic block (138), the first elastic member (137) is fastened to the first magnetic block (139), the first magnetic block (139) and the simulated screw rod (132) are ) is fastened and connected, the simulated spiral rod (132) and the first electromagnetic block (138) are slidably connected, the first electromagnetic block (138) is provided with a sliding groove (1381), the simulated spiral rod (132) is provided with a sliding protrusion (1321), the sliding protrusion (1321) and the sliding groove (1381) are slidably connected, the sand discharge valve pipe (136) and the simulation box (131) are communicated, the sand filter plate (134) and the simulation box (131) are fastened and connected, and the simulation box (131) and the sand filter plate (134) form a A seawater simulation chamber (1341) is provided on the upper side, a liquid recovery chamber (1342) is provided on the lower side surrounded by the simulation box (131) and the sand filter plate (134), an inclined surface (1343) is provided on the sand filter plate (134), and a sand discharge arc surface (1344) is provided on the sand filter plate (134), the sand discharge arc surface (1344) is semi-circular, the inclined surface (1343) is used to flow the simulated medium into the sand discharge arc surface (1344), and the sand discharge arc surface (1344) is used to simulate the spiral rod (132) transporting sand thereon.

4. The chain link corrosion testing device with complex environment simulation function according to claim 3, characterized in that: The environmental simulation mechanism (1) further comprises an opening and closing side panel door (14), a screw guide rail (15), an opening and closing motor (16), an opening and closing screw rod (17) and an opening and closing slide rod (18); the opening and closing motor (16) and the opening and closing side panel door (14) are fixedly connected; the opening and closing motor (16) and the opening and closing screw rod (17) are transmission-connected; the opening and closing screw rod (17) and the screw guide rail (15) are threadedly connected; the opening and closing slide rod (18) and the opening and closing side panel door (14) are fixedly connected; the opening and closing slide rod (18) and the screw guide rail (15) are slidingly connected; the screw guide rail (15) and the test box (11) are fixedly connected; the clamping mechanism (2) comprises a winding assembly (21) and a stretching assembly (22); the winding assembly (21) and the opening and closing side panel door (14) are fixedly connected; and the stretching assembly (22) and the test box (11) are fixedly connected.

5. The chain link corrosion testing device with complex environment simulation function according to claim 4, characterized in that: The winding assembly (21) comprises a lifting electric slide rail (211), a telescopic electric cylinder (212), an electric arc slide rail (213), a rotating motor (214), an arc block (215), a first electric clamp (216), a single-side electric clamp (217), a release rotating motor (218) and a rotating plate (219); the lifting electric slide rail (211) is fastened to the opening and closing side panel door (14); the lifting electric slide rail (211) is transmission-connected to the telescopic electric cylinder (212); the telescopic electric cylinder (212) The electric arc slide rail (213) is in transmission connection with the telescopic electric cylinder (212) and the rotating motor (214), the electric arc slide rail (213) is in transmission connection with the arc block (215), the release rotating motor (218) is fixedly connected with the arc block (215), the release rotating motor (218) is in transmission connection with the rotating plate (219), the single-sided electric clamp (217) is fixedly connected with the rotating plate (219), and the single-sided electric clamp (217) is in abutment with the stretching assembly (22).

6. The chain link corrosion testing device with complex environment simulation function according to claim 5, characterized in that: The stretching assembly (22) includes a stretching single-sided electric claw (221), a stretching electric cylinder (222), a self-locking motor (223), a self-locking plate (224), a self-locking elastic member (225), a self-locking block (226) and an abutting block (227); the single-sided electric clamp (217) and the stretching single-sided electric claw (221) are clamped and abutted; the stretching electric cylinder (222) and the test box (11) are fastened and connected; the stretching electric cylinder (222) and the self-locking motor (223) are transmission-connected; the self-locking motor (223) and the self-locking plate (224) are transmission-connected; the single-sided electric clamp ( The self-locking plate (217) is fastened to the self-locking plate (224), the self-locking elastic member (225) is fastened to the stretching unilateral electric claw (221), the self-locking block (226) is slidably connected to the stretching unilateral electric claw (221), the self-locking elastic member (225) is fastened to the self-locking block (226), the abutting block (227) is fastened to the self-locking motor (223), the abutting block (227) and the self-locking block (226) are abutted for transmission, the abutting block (227) is arc-shaped, and the abutting block (227) is used to prevent the workpiece from falling off when the stretching unilateral electric claw (221) rotates.

7. The chain link corrosion testing device with complex environment simulation function according to claim 6, characterized in that: The detection mechanism (3) includes an industrial camera (31), an electric displacement stage (32), a positioning cylinder (33) and a conductivity probe (34); the industrial camera (31) and the test box (11) are fastened together; the electric displacement stage (32) and the test box (11) are fastened together; the electric displacement stage (32) and the positioning cylinder (33) are transmission-connected; and the positioning cylinder (33) and the conductivity probe (34) are transmission-connected.

8. The chain link corrosion testing device with complex environment simulation function according to claim 7, characterized in that: The temperature control mechanism (4) includes a heating box (41), a cooling box (42), a recovery pump (43), a circulation pump (44) and a temperature control tube (45), wherein the cooling box (42) is connected to the circulation pump (44), the circulation pump (44) is connected to the temperature control tube (45), the temperature control tube (45) is arranged in a serpentine shape, the temperature control tube (45) is connected to the heating box (41), the recovery pump (43) is connected to the dripping nozzle (121), the recovery pump (43) is connected to the liquid recovery chamber (1342), and the heating box (41), the cooling box (42) and the circulation pump (44) are all fastened to the test box (11).

Images