A proton exchange membrane strength detection device
By designing an automatic fixing and stretching mechanism, the problems of complex operation and inaccurate detection in existing proton exchange membrane testing devices are solved, realizing automated and accurate tensile strength testing of the membrane, which is suitable for roll-up membranes.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SUZHOU KERUN NEW MATERIALS CO LTD
- Filing Date
- 2025-06-30
- Publication Date
- 2026-07-07
AI Technical Summary
Existing proton exchange membrane tensile strength testing devices are complex to operate, require manual fixation, and are prone to causing excessive local stress on the diaphragm, resulting in indentations or damage, which affects the accuracy of the test results. Furthermore, they are not suitable for direct testing of rolled membranes.
A proton exchange membrane strength testing device was designed. It uses a right-fixing mechanism and a left-fixing mechanism to automatically fix both ends of the membrane, increasing the contact area and avoiding excessive local stress. At the same time, it achieves automatic tensile testing through a tensile testing mechanism and automatically rewinds the membrane after testing. It is suitable for testing rolled membranes.
It enables accurate and automated tensile strength testing of membranes, avoiding damage caused by excessive local stress. It is suitable for direct testing of rolled membranes, improving testing accuracy and ease of operation.
Smart Images
Figure CN224471412U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of proton exchange membrane production technology, and in particular to a proton exchange membrane strength testing device. Background Technology
[0002] The proton exchange membrane is the core component of a fuel cell, responsible for conducting protons, isolating gases, and supporting the electrodes. Tensile strength refers to the material's ability to resist fracture under tension. High tensile strength means that the membrane is not easily broken or deformed during manufacturing and use, and its tensile strength directly affects the performance and service life of the fuel cell.
[0003] Existing membrane tensile strength testing devices mostly rely on traditional mechanical clamps to secure the membrane during operation. Before each test, operators must manually place the membrane accurately in the center of the clamp and then tighten multiple bolts sequentially to secure it. This process requires operators to possess certain skills and experience, and the tightening of bolts can easily cause excessive localized stress on the membrane, leading to indentations, damage, and other issues that directly affect the accuracy of the test results. Furthermore, existing battery membranes are often transported in rolls, requiring the membrane tensile strength testing device to cut the membrane into samples and then clamp them at both ends for testing, making the operation complex. Utility Model Content
[0004] The purpose of this invention is to provide a proton exchange membrane strength detection device to address the aforementioned shortcomings in the prior art.
[0005] To achieve the above objectives, this utility model provides the following technical solution:
[0006] A proton exchange membrane strength testing device includes a mounting frame, which comprises a left frame and a right frame disposed opposite to each other. The right frame is provided with a drive mechanism and a take-up roller connected to the drive mechanism. The right frame is also provided with a right fixing mechanism, which includes a right limiting frame and a right limiting component disposed on the right limiting frame. The right limiting frame has a strip-shaped opening for the membrane to pass through. The right limiting component can fix the membrane on the right limiting frame. The left frame is provided with a tensile testing mechanism and a left fixing mechanism. The left fixing mechanism includes a left limiting frame and a first limiting component and a second limiting component disposed on the left limiting frame. The left limiting frame is provided with an adjustment drive component. The first and second limiting components receive the drive from the adjustment drive component and can clamp and fix the membrane. The tensile testing mechanism can drive the left limiting frame to move.
[0007] The proton exchange membrane strength detection device described above includes a right limiting component comprising a strip limiting plate slidably connected within the strip opening. The bottom of the strip opening is provided with a strip groove corresponding to the strip limiting plate. Sliding grooves are provided on the side walls of the strip opening on opposite sides. The two ends of the strip limiting plate are slidably connected within the sliding grooves.
[0008] In the aforementioned proton exchange membrane strength detection device, the right limiting component further includes at least one piston drive rod, and the strip limiting plate receives the drive of the piston drive rod and can move up and down.
[0009] The proton exchange membrane strength detection device described above includes a left limiting frame comprising a horizontal mounting plate, an adjustment drive assembly disposed on the horizontal mounting plate, and the adjustment drive assembly comprising a drive motor and a drive gear connected to the drive motor.
[0010] The proton exchange membrane strength detection device described above, wherein the first limiting component includes a first sliding seat and a first limiting plate connected to the first sliding seat, the first sliding seat being slidably connected to the horizontal mounting plate.
[0011] The proton exchange membrane strength detection device described above includes a second limiting component comprising a second sliding seat and a second limiting plate connected to the second sliding seat. The second sliding seat is slidably connected to the horizontal mounting plate. Both the first limiting plate and the second limiting plate are provided with a plurality of strip-shaped clamping protrusions.
[0012] In the aforementioned proton exchange membrane strength testing device, a first transmission rod is provided on the first sliding seat, and a plurality of first tooth grooves are sequentially provided on the first transmission rod. A second transmission rod is provided on the second sliding seat, and a plurality of second tooth grooves are sequentially provided on the second transmission rod. The first transmission rod and the second transmission rod are arranged in parallel and are located on opposite sides of the drive gear. The first tooth grooves and the second tooth grooves are engaged with the drive gear.
[0013] The proton exchange membrane strength testing device described above includes a tensile testing mechanism comprising a mounting base and a drive screw mounted on the mounting base. A moving seat is connected to the drive screw, and rotation of the drive screw can correspondingly drive the moving seat to move linearly along the axis of the drive screw.
[0014] In the aforementioned proton exchange membrane strength testing device, a crossbeam is fixedly installed on the motion seat, and the other end of the crossbeam is connected to the right limiting frame via a connector.
[0015] In the above technical solution, the proton exchange membrane strength testing device provided by this utility model includes a mounting frame comprising a left frame and a right frame arranged opposite to each other. The right frame is provided with a driving mechanism and a winding roller connected to the driving mechanism. The right frame is also provided with a right fixing mechanism, which includes a right limiting frame and a right limiting component disposed on the right limiting frame. The left frame is provided with a tensile testing mechanism and a left fixing mechanism, which includes a left limiting frame and a first limiting component and a second limiting component disposed on the left limiting frame. The left limiting frame is provided with an adjustment driving component. Thus, during use, one end of the membrane is fixed to the right limiting frame using the right limiting component, and the other end of the membrane is fixed by adjusting the driving component, the first limiting component, and the second limiting component. The right limiting component, the first limiting component, and the second limiting component can automatically fix both ends of the membrane and increase the contact area with the membrane, avoiding excessive local stress on the membrane, resulting in indentations, damage, etc. Finally, the tensile testing mechanism is activated, driving the left limiting frame to move and apply tension to the membrane. During this process, the stress and tensile condition of the membrane can be monitored in real time until the membrane breaks, thus obtaining accurate strength data. After the test, the drive mechanism rotates the winding roller to wind up the tested membrane, facilitating direct inspection of the rolled membrane. Attached Figure Description
[0016] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.
[0017] Figure 1 This is a schematic diagram of the proton exchange membrane strength detection device provided in an embodiment of the present invention;
[0018] Figure 2 This is a schematic diagram of the right frame provided in an embodiment of the present utility model;
[0019] Figure 3 This is a schematic diagram of the tensile testing mechanism and the left fixing mechanism provided in an embodiment of the present utility model;
[0020] Figure 4 This is a schematic diagram of the structure of the adjustment drive assembly provided in an embodiment of the present invention.
[0021] Explanation of reference numerals in the attached figures:
[0022] 1. Mounting frame; 2. Right frame body; 21. Drive mechanism; 22. Take-up roller; 23. Right fixing mechanism; 24. Right limiting frame; 241. Strip opening; 242. Strip limiting plate; 243. Piston drive rod; 3. Left frame body; 31. Left fixing mechanism; 32. Left limiting frame; 321. Horizontal mounting plate; 33. First limiting assembly; 331. First sliding seat; 332. First limiting plate; 333. First transmission rod; 334. First toothed groove; 34. Second limiting assembly; 341. Second sliding seat; 342. Second limiting plate; 343. Second transmission rod; 344. Second toothed groove; 35. Strip clamping protrusion; 36. Adjustment drive assembly; 361. Drive motor; 362. Drive gear; 4. Tensile testing mechanism; 41. Mounting seat; 42. Drive screw; 43. Moving seat; 44. Crossbeam; 45. Connecting piece. Detailed Implementation
[0023] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.
[0024] like Figure 1-4 As shown, this utility model provides a proton exchange membrane strength testing device, including a mounting frame 1. The mounting frame 1 includes a left frame 3 and a right frame 2 arranged opposite to each other. The right frame 2 is provided with a drive mechanism 21 and a take-up roller 22 connected to the drive mechanism 21. The right frame 2 is provided with a right fixing mechanism 23, which includes a right limiting frame 24 and a right limiting component disposed on the right limiting frame 24. The right limiting frame 24 is provided with a strip-shaped opening 241 for the membrane to pass through. The right limiting component can fix the membrane on the right limiting frame 24. The left frame 3 is provided with a tensile testing mechanism 4 and a left fixing mechanism 31. The left fixing mechanism 31 includes a left limiting frame 32 and a first limiting component 33 and a second limiting component 34 disposed on the left limiting frame 32. The left limiting frame 32 is provided with an adjustment drive component 36. The first limiting component 33 and the second limiting component 34 receive the drive of the adjustment drive component 36 and can clamp and fix the membrane between them. The tensile testing mechanism 4 can drive the left limiting frame 32 to move to pull the membrane.
[0025] Specifically, the mounting frame 1 consists of a left frame 3 and a right frame 2 positioned opposite each other. The bottom of the left frame 3 and the right frame 2 are rigidly connected by a horizontal beam 44 to ensure stability during testing and prevent shaking. The right frame 2 includes a base and two mounting side frames mounted on the base. The take-up roller 22 is rotatably mounted on the two mounting side frames via bearing seats at both ends. A drive mechanism 21 is mounted on the right frame 2, and the take-up roller 22 is connected to the drive mechanism 21 for transmission. The drive mechanism 21 can drive the take-up roller 22 to rotate. A right limiting frame 24 is provided on the right frame 2. The right limiting frame 24 has a rectangular structure and a strip-shaped opening 241 along its length. The width of the strip-shaped opening 241 is slightly larger than the thickness of the proton exchange membrane, which can both ensure that the membrane passes through smoothly and provide a certain degree of restriction for the membrane. A right limiting component is provided at the strip-shaped opening 241, which can fix the membrane on the right limiting frame 24.
[0026] In this embodiment, the left frame 3 and the right frame 2 are arranged parallel to each other, with a certain distance between them. A tensile testing mechanism 4 and a left fixing mechanism 31 are provided on the left frame 3. The left fixing mechanism 31 can fix the other end of the membrane, and the tensile testing mechanism 4 can drive the left fixing mechanism 31, thereby moving the left fixing mechanism 31 to pull the membrane and test its tensile strength. The left fixing mechanism 31 includes a left limiting frame 32, an adjustment drive assembly 36, a first limiting assembly 33, and a second limiting assembly 34. The first limiting assembly 33 and the second limiting assembly 34 are located on both sides of the width direction of the left limiting frame 32, forming a strip-shaped gap between them. Both the first limiting assembly 33 and the second limiting assembly 34 are connected to the adjustment drive assembly 36. By adjusting the drive of the adjustment drive assembly 36, the first limiting assembly 33 and the second limiting assembly 34 can move towards or away from each other. The left tension testing mechanism 4 is connected to the left limiting frame 32 via a transmission. The left tension testing mechanism 4 can drive the left limiting frame 32, thereby causing the left limiting frame 32 to move in the horizontal direction.
[0027] During use, the proton exchange membrane wound on the take-up roller 22 is passed through the strip opening 241 of the right limiting frame 24, and one end of the membrane is quickly fixed to the right limiting frame 24 using the right limiting component. Next, the adjustment drive component 36 on the left limiting frame 32 is activated, driving the first limiting component 33 and the second limiting component 34 to move, firmly clamping the other end of the membrane between the first limiting component 33 and the second limiting component 34. Finally, the tensile testing mechanism 4 is activated to drive the left limiting frame 32 to move, applying tensile force to the membrane for detection. The tensile force is detected by a tensile sensor. The tensile sensor can be located between the left tensile testing mechanism 4 and the left limiting frame 32, or it can be located on the left limiting frame 32.
[0028] The proton exchange membrane strength testing device provided by this utility model includes a mounting frame 1 comprising a left frame 3 and a right frame 2 arranged opposite to each other. The right frame 2 is equipped with a drive mechanism 21 and a winding roller 22 connected to the drive mechanism 21. The right frame 2 is also equipped with a right fixing mechanism 23, which includes a right limiting frame 24 and a right limiting component disposed on the right limiting frame 24. The left frame 3 is equipped with a tensile testing mechanism 4 and a left fixing mechanism 31, which includes a left limiting frame 32 and a first limiting component disposed on the left limiting frame 32. The left limiting frame 32 is equipped with an adjustment drive assembly 36, which, during use, fixes one end of the membrane to the right limiting frame 24 using the right limiting assembly. The other end of the membrane is fixed by the adjustment drive assembly 36, the first limiting assembly 33, and the second limiting assembly 34. This combination of the right limiting assembly, the first limiting assembly 33, and the second limiting assembly 34 automatically fixes both ends of the membrane and increases the contact area with the membrane, preventing excessive local stress that could cause indentations or damage. Finally, the tensile testing mechanism 4 drives the left limiting frame 32 to apply tension to the membrane. During this process, the stress and tensile condition of the membrane can be monitored in real time until the membrane breaks, thus obtaining accurate strength data. After the test, the drive mechanism 21 rotates the take-up roller 22 to rewind and organize the tested membrane, facilitating direct testing of the rolled membrane.
[0029] In this embodiment, preferably, the right limiting component includes a strip limiting plate 242 slidably connected within the strip opening 241. The bottom of the strip opening 241 is provided with a strip groove corresponding to the strip limiting plate 242. Sliding grooves are provided on the sidewalls of the strip opening 241 on opposite sides. Both ends of the strip limiting plate 242 are slidably connected within the sliding grooves. The right limiting component also includes at least one piston drive rod 243. The drive end of the piston drive rod 243 is connected to the strip limiting plate 242, providing driving force for the up-and-down movement of the strip limiting plate 242. The strip limiting plate 242 receives the drive from the piston drive rod 243 and can move up and down. The strip groove is correspondingly provided to the strip limiting plate 242. When the strip limiting plate 242 is driven to its lowest position, the bottom of the strip limiting plate 242 can be embedded into the strip groove. An elastic buffer layer is provided at the bottom of the strip limiting plate 242. The elastic buffer layer is made of silicone or polyurethane material and has a thickness of approximately 2-3 mm. In actual operation, when it is necessary to fix the proton exchange membrane, the membrane body is first passed through the strip opening 241, and then the piston drive rod 243 is activated to drive the strip limiting plate 242 to move downward, so that it gradually approaches and finally presses the membrane body, and firmly clamps the membrane body between the strip limiting plate 242 and the strip groove.
[0030] In this embodiment, preferably, the right limiting frame 24 includes a horizontal mounting plate 321, and the adjustment drive assembly 36 is disposed on the horizontal mounting plate 321. The adjustment drive assembly 36 includes a drive motor 361 and a drive gear 362 connected to the drive motor 361. Driven by the drive motor 361, the drive gear 362 can rotate.
[0031] In this embodiment, preferably, the first limiting component 33 includes a first sliding seat 331 and a first limiting plate 332 connected to the first sliding seat 331, the first sliding seat 331 being slidably connected to the horizontal mounting plate 321; the second limiting component 34 includes a second sliding seat 341 and a second limiting plate 342 connected to the second sliding seat 341, the second sliding seat 341 being slidably connected to the horizontal mounting plate 321, the first limiting plate 332 and the second limiting plate 342 being arranged in parallel, forming a placement gap for placing the film body between the first limiting plate 332 and the second limiting plate 342, and each of the first limiting plate 332 and the second limiting plate 342 being correspondingly provided with a plurality of strip-shaped clamping protrusions 35, the strip-shaped clamping protrusions 35 being provided on the side surfaces of the first limiting plate 332 and the second limiting plate 342 on the opposite side, by setting The strip-shaped clamping protrusion 35 can improve the clamping strength of the first limiting plate 332 and the second limiting plate 342 on the membrane; the first sliding seat 331 is provided with a first transmission rod 333, and a plurality of first tooth grooves 334 are sequentially provided on the first transmission rod 333. The plurality of first tooth grooves 334 are sequentially and continuously arranged along the length direction of the first transmission rod 333. The second sliding seat 341 is provided with a second transmission rod 343, and a plurality of second tooth grooves 344 are sequentially and continuously arranged along the length direction of the second transmission rod 343. The first transmission rod 333 and the second transmission rod 343 are arranged in parallel. The first transmission rod 333 and the second transmission rod 343 are located on opposite sides of the drive gear 362. The first tooth grooves 334 and the second tooth grooves 344 are engaged with the drive gear 362.
[0032] In this embodiment, preferably, a sliding guide groove is provided on the horizontal mounting plate 321, and a sliding block is provided on the first sliding seat 331 and the second sliding seat 341. The sliding block is slidably connected in the sliding guide groove. A first guide hole is provided on the first sliding seat 331, and the other end of the second transmission rod 343 passes through the first guide hole. A second guide hole is provided on the second sliding seat 341, and the other end of the first transmission rod 333 passes through the second guide hole. When the first sliding seat 331 and the second sliding seat 341 are driven to move, the first guide rod moves along the second guide hole, and the second guide rod moves along the first guide hole.
[0033] When fixing the proton exchange membrane, the membrane is placed between the first limiting plate 332 and the second limiting plate 342. The drive motor 361 is activated, driving the drive gear 362 to rotate. Due to the meshing relationship between the first tooth groove 334, the second tooth groove 344, and the drive gear 362, the first transmission rod 333 and the second transmission rod 343, driven by the drive gear 362, push the first sliding seat 331 and the second sliding seat 341 closer together. During this process, the strip-shaped clamping protrusions 35 on the first limiting plate 332 and the second limiting plate 342 gradually clamp the membrane, achieving a firm fixation of the membrane. Compared to traditional fixing methods, the drive motor 361, drive gear 362, first limiting plate 332, and second limiting plate 342 can automatically clamp and fix the membrane. Furthermore, the first limiting plate 332 and the second limiting plate 342 increase the contact area with the membrane, ensuring uniform force on the membrane and preventing excessive local pressure that could damage the membrane.
[0034] In this embodiment, preferably, the tensile testing mechanism 4 includes a mounting base 41 and a drive screw 42 disposed on the mounting base 41. The drive screw 42 is arranged in a horizontal direction and has a helical thread processed on its surface. A motion seat 43 is connected to the drive screw 42. When the drive screw 42 rotates, it can drive the motion seat 43 to move linearly along the axis of the drive screw 42. The motion seat 43 is sleeved on the drive screw 42, and a ball screw structure is formed between the motion seat 43 and the drive screw 42. Thus, when the drive screw 42 rotates, it can drive the motion seat 43 to move linearly back and forth along the axis of the drive screw 42. A crossbeam 44 is fixedly disposed on the motion seat 43, and the other end of the crossbeam 44 is connected to the left limiting frame 32 through a connector 45.
[0035] During proton exchange membrane strength testing, one end of the membrane is quickly fixed to the right limiting frame 24 using the right limiting component. Then, the adjustment drive component 36 on the left limiting frame 32 is activated to securely clamp the other end of the membrane between the first limiting component 33 and the second limiting component 34. During this operation, the operator needs to observe and adjust to ensure the membrane is horizontal and free from twisting, guaranteeing uniform force during stretching. Subsequently, the drive mechanism of the drive screw 42 is activated, causing it to rotate and move the motion seat 43 along its axis. The motion seat 43 pulls the right limiting frame 24 via the crossbeam 44, thereby applying tension to the membrane. During tension testing, the tension sensor monitors the tension value in real time.
[0036] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.
Claims
1. A proton exchange membrane strength testing device, comprising a mounting frame, characterized in that, The mounting frame includes a left frame and a right frame arranged opposite to each other. The right frame is provided with a drive mechanism and a take-up roller connected to the drive mechanism. The right frame is also provided with a right fixing mechanism, which includes a right limiting frame and a right limiting component disposed on the right limiting frame. The right limiting frame has a strip-shaped opening for the film to pass through. The right limiting component can fix the film on the right limiting frame. The left frame is provided with a tensile testing mechanism and a left fixing mechanism. The left fixing mechanism includes a left limiting frame and a first limiting component and a second limiting component disposed on the left limiting frame. The left limiting frame is provided with an adjustment drive component. The first limiting component and the second limiting component receive the drive from the adjustment drive component and can clamp and fix the film. The tensile testing mechanism can drive the left limiting frame to move.
2. The proton exchange membrane strength detection device according to claim 1, characterized in that, The right limiting component includes a strip limiting plate slidably connected within the strip opening. The bottom of the strip opening is provided with a strip groove corresponding to the strip limiting plate. Sliding grooves are provided on the side walls of the strip opening on opposite sides. The two ends of the strip limiting plate are slidably connected within the sliding grooves.
3. The proton exchange membrane strength detection device according to claim 2, characterized in that, The right limiting assembly also includes at least one piston drive rod, and the strip limiting plate receives the drive of the piston drive rod and is capable of moving up and down.
4. The proton exchange membrane strength detection device according to claim 1, characterized in that, The left limiting frame includes a horizontal mounting plate, and the adjustment drive assembly is disposed on the horizontal mounting plate. The adjustment drive assembly includes a drive motor and a drive gear connected to the drive motor.
5. The proton exchange membrane strength detection device according to claim 4, characterized in that, The first limiting component includes a first sliding seat and a first limiting plate connected to the first sliding seat, the first sliding seat being slidably connected to the horizontal mounting plate.
6. The proton exchange membrane strength detection device according to claim 5, characterized in that, The second limiting component includes a second sliding seat and a second limiting plate connected to the second sliding seat. The second sliding seat is slidably connected to the horizontal mounting plate. Both the first limiting plate and the second limiting plate are provided with a plurality of strip-shaped clamping protrusions.
7. The proton exchange membrane strength detection device according to claim 6, characterized in that, The first sliding seat is provided with a first transmission rod, and the first transmission rod is provided with a plurality of first tooth grooves in sequence. The second sliding seat is provided with a second transmission rod, and the second transmission rod is provided with a plurality of second tooth grooves in sequence. The first transmission rod and the second transmission rod are arranged in parallel and are located on opposite sides of the drive gear. The first tooth grooves and the second tooth grooves are engaged with the drive gear.
8. The proton exchange membrane strength detection device according to claim 7, characterized in that, The tensile testing mechanism includes a mounting base and a drive screw mounted on the mounting base. A moving seat is connected to the drive screw, and rotation of the drive screw can correspondingly drive the moving seat to move linearly along the axis of the drive screw.
9. The proton exchange membrane strength detection device according to claim 8, characterized in that, A crossbeam is fixedly installed on the motion seat, and the other end of the crossbeam is connected to the right limiting frame via a connector.