A rubber sealing ring performance detection device and method

Abstract

This invention relates to the technical field of rubber seal performance testing devices, and proposes a rubber seal performance testing device and method. The device forms a corresponding testing functional structure with the rubber seal, resulting in better testing versatility and a richer simulation of the application environment of the rubber seal. Both practicality and versatility are significantly improved. The device includes a testing mechanism and a main body mechanism. The main body mechanism includes a main frame, on which a mounting frame is fixedly connected. An upper adjustment structure, a lower adjustment structure, and an electric telescopic rod are mounted on the mounting frame. The electric telescopic rod provides operating power for the upper and lower adjustment structures. The upper and lower adjustment structures are respectively equipped with an upper adjusting pressure frame and a lower support bracket. The testing mechanism includes a ring frame, a camera, and an air pump. The ring frame is rotatably connected within the main frame, and the camera is installed inside the ring frame. A first servo motor is installed outside the main frame, and the first servo motor drives the rotation of the ring frame.

Description

Technical Field

[0001] This invention relates to the technical field of rubber seal performance testing devices, specifically to a rubber seal performance testing device and method. Background Art

[0002] As is well known, a rubber sealing ring is a ring-shaped sealing element used to prevent liquid or gas leakage. It is usually made of rubber material and its main function is to fill the gap between two connecting parts and achieve a sealing effect in a static or dynamic state. To facilitate the evaluation of the performance of rubber sealing rings, we propose a rubber sealing ring performance testing device and method.

[0003] A search revealed Chinese patent application CN202223150546.4, which discloses a performance testing device for sealing rings. The device roughly comprises a worktable, an air inlet pipe, a glass tube, and multiple air outlets. A drive mechanism is mounted on the worktable, and a testing mechanism is mounted on top of the drive mechanism. The testing mechanism includes a sealing cover mounted on the drive mechanism. The air inlet pipe is fixedly inserted into the top outer wall of the sealing cover, and a testing element is fixedly connected to one end of the air inlet pipe. Multiple air outlets are located on the bottom outer wall of the testing element. One end of the glass tube is inserted into the top outer wall of the sealing cover, and a display ball is placed inside the glass tube. During use, by setting up the testing mechanism to simulate the working environment of the sealing ring, and then observing whether the position of the display ball changes, it is possible to clearly determine whether there is a problem with the sealing ring. A search revealed Chinese patent application CN2... Patent 02020773304.2 discloses an elasticity testing device for fluororubber, which is roughly described as including a base and a tensile detector. The base surface is provided with a column, and a slide rail is installed on one side of the column. A mounting plate is welded to the lower surface of the column and slide rail. One end of a lead screw passes through the surface of the mounting plate and is connected to the output end of a motor through a coupling. A slider is screwed to the surface of the lead screw and slidably connected to the slide rail. A mounting bracket is bolted to one side of the slider. The tensile detector is installed on the mounting bracket through a fixing ring. A fixing mechanism is installed at the output end of the tensile detector. In use, the tensile detector is used to stretch the sealing ring in the vertical direction. The elasticity of the fluororubber is detected by the reading on the tensile detector and the deformation effect of the sealing ring, thereby ensuring that the fluororubber sealing ring has good performance.

[0004] While the aforementioned existing technical solutions can achieve performance testing of the sealing rings, analysis of the accompanying drawings clearly shows that both solutions are well-suited for perfectly circular rubber sealing rings. However, in reality, the specific structural form of the rubber sealing ring is determined by the actual gap between the two connectors. Furthermore, the rubber sealing ring forms a filling seal within the gap through elastic deformation of its own structure. Therefore, considering the actual application environment, the filling gap shape of the rubber sealing ring varies, inevitably resulting in a gradually deformed structure. Consequently, the fit of the two aforementioned technical solutions to the actual environment needs further improvement, and the reliability of the rubber sealing ring testing also needs to be further enhanced. Summary of the Invention

[0005] To address the shortcomings of existing technologies, this invention provides a rubber sealing ring performance testing device and method. The device and method are designed to work with rubber sealing rings to form a corresponding testing functional structure, resulting in better testing versatility and a wider range of simulated application environments for the rubber sealing rings. Both practicality and versatility are significantly improved.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a rubber sealing ring performance testing device, comprising a testing mechanism and a main body mechanism. The main body mechanism includes a main frame, on which a mounting frame is fixedly connected. An upper adjustment structure, a lower adjustment structure, and an electric telescopic rod are mounted on the mounting frame. The electric telescopic rod provides operating power to the upper and lower adjustment structures. An upper adjusting pressure frame and a lower support bracket are respectively mounted on the upper and lower adjustment structures. The testing mechanism includes a ring frame, a camera, and an air pump. The ring frame is rotatably connected within the main frame. The camera is installed within the ring frame. A first servo motor is mounted outside the main frame, driving the rotation of the ring frame. The air pump is installed outside the main frame. A central hole is formed on the lower support bracket, communicating with the air pump.

[0007] Preferably, the upper adjustment structure includes an upper driving parallel plate and an upper follower parallel plate, and the lower adjustment structure includes a lower driving parallel plate and a lower follower parallel plate. The upper driving parallel plate, the upper follower parallel plate, the lower driving parallel plate, and the lower follower parallel plate are all rotatably connected to the mounting frame. The lower driving parallel plate and the lower follower parallel plate are all rotatably connected to the lower support bracket. The upper driving parallel plate and the upper follower parallel plate are respectively rotatably connected to an auxiliary half-frame and an installation half-frame. The auxiliary half-frame and the installation half-frame are fixedly connected to each other. The upper adjusting pressure frame is installed between the auxiliary half-frame and the installation half-frame. The auxiliary half-frame and the installation half-frame are each fixedly connected to two vertical springs. All four vertical springs are fixedly connected to the upper adjusting pressure frame. A pressing assembly is installed between the auxiliary half-frame and the installation half-frame. The pressing assembly is used for pressing down the upper adjusting pressure frame.

[0008] Preferably, the pressing assembly includes an inner liner rotating ring, which is rotatably connected between the auxiliary half-frame and the mounting half-frame. A vertical mounting frame is fixedly connected to the inner liner rotating ring, and a rotating vertical frame is rotatably connected to the vertical mounting frame. A lifting frame is slidably connected inside the rotating vertical frame. An electric lifting rod is installed at the top of the rotating vertical frame, and the bottom end of the lifting rod of the electric lifting rod is connected to the lifting frame. A contact pressure roller is installed inside the lifting frame, and a second servo motor is installed inside the lifting frame. The second servo motor is used to drive the rotation of the contact pressure roller.

[0009] Preferably, a prismatic column is slidably connected inside the contact pressure roller, and the prismatic column is rotatably connected inside the lifting frame. Two centering springs are fixedly connected inside the lifting frame, and each of the two centering springs is fixedly connected to a contact ring. The two contact rings are rotatably connected to both ends of the contact pressure roller. Synchronous pulleys are connected to both the output shaft of the second servo motor and the prismatic column, and the two synchronous pulleys are connected by a synchronous belt drive.

[0010] Preferably, the inner lining rotating ring is fixedly connected to a plurality of contact conductor rings, the mounting half frame is fixedly connected to a plurality of contact conductor strips, the plurality of contact conductor strips are respectively matched with the plurality of contact conductor rings, the plurality of contact conductor rings are electrically connected to external leads, and the electric lifting rod and the second servo motor are both electrically connected to the external leads.

[0011] Preferably, both the auxiliary half-frame and the installation half-frame are provided with support bar ball grooves, and an annular spherical surface is fixedly connected to the upper adjusting pressure frame, with both support bar ball grooves matching the annular spherical surface.

[0012] Preferably, a synchronous pusher is fixedly connected to the telescopic rod of the electric telescopic rod, and the synchronous pusher is connected to two side connecting frames, which are respectively fixedly connected to the upper drive parallel plate and the lower drive parallel plate.

[0013] Preferably, the exhaust port of the air pump is connected to an air inlet pipe, the air inlet pipe is connected to an upper feed pipe and a lower discharge pipe, the upper feed pipe is connected to a feeding hopper, the lower discharge pipe is rotatably connected to a curved pipe, the curved pipe is equipped with a limit post, and the limit post is fixedly connected to the outer casing of the air pump.

[0014] Preferably, a bushing is rotatably connected inside the air inlet pipe, and a limiting arc plate is fixedly connected to the bushing. The limiting arc plate matches the upper feed pipe. A vertical groove is opened at the end of the bushing away from the limiting arc plate. A transverse rod is fixedly connected inside the limiting arc plate, and a gradient counterweight is rotatably connected to the transverse rod.

[0015] A method for testing the performance of rubber seals includes the following steps:

[0016] S1. When in use, first connect the control power to the electric telescopic rod. The operation of the electric telescopic rod realizes the linkage operation of the upper adjustment structure and the lower adjustment structure, thereby realizing the adjustment of the relative distance between the upper adjustment pressure frame and the lower support bracket. Control the increase of the relative distance between the upper adjustment pressure frame and the lower support bracket so that the distance between the upper adjustment pressure frame and the lower support bracket can meet the insertion of the rubber sealing ring.

[0017] S2. Place a rubber sealing ring on the lower support bracket and operate the electric telescopic rod to bring the relative distance between the upper adjusting pressure bracket and the lower support bracket closer until the gap between the upper adjusting pressure bracket and the lower support bracket can contact and squeeze the rubber sealing ring. That is, the space between the upper adjusting pressure bracket and the lower support bracket is divided into an external open space and an internal closed space by the action of the rubber sealing ring.

[0018] S3. Start the air pump to pump compressed gas into the central hole and add dye to the pumped compressed gas. The compressed gas enters the internal closed space through the central hole. The compressed gas entering the internal closed space will fill the internal closed space, and the space filled by the gas in the internal closed space will also be dyed with dye.

[0019] S4. When there is air leakage at the contact points between the top and bottom of the rubber sealing ring and the upper adjusting pressure frame and the lower support bracket, the leakage of gas at the leakage point will also form the filling of dye. After the air pump operates to pump the constant pressure compressed air into the internal closed space, the air pump enters the parking state. After the pressure in the internal closed space decreases, the air pump can run in real time to replenish the gas.

[0020] S5. The rotation of the ring frame is driven by the power-on operation of the first servo motor, which ultimately forms the ring-shaped motion of the camera relative to the rubber sealing ring, forming an image coverage acquisition around the rubber sealing ring. The sealing performance of the rubber sealing ring is judged based on the dye staining in the acquired image, and the area of ​​air leakage on the rubber sealing ring is accurately determined.

[0021] Compared with the prior art, the present invention provides a device and method for testing the performance of rubber sealing rings, which has the following beneficial effects:

[0022] (1) In this invention, the detection mechanism is designed with a rubber sealing ring to form a detection function. During the detection process, information can be collected around the rubber sealing ring according to the actual detection needs, resulting in better detection coverage and enhanced practicality.

[0023] (2) In this invention, the design of the main structure and the detection of the rubber sealing ring form a structure for simulating the application environment. The application environment simulation of the rubber sealing ring is more diverse and can be applied to rubber sealing rings with various structural forms and specifications, thus significantly improving its versatility. Attached Figure Description

[0024] Figure 1 This is a three-dimensional structural diagram of the entire invention;

[0025] Figure 2 For the present invention Figure 1 A magnified schematic diagram of the partial structure at point A in the middle;

[0026] Figure 3 This is a three-dimensional structural diagram showing the cooperation of the main frame, mounting bracket, and vertical mounting bracket of the present invention.

[0027] Figure 4 For the present invention Figure 3 A magnified schematic diagram of the local structure at point B;

[0028] Figure 5 This is a three-dimensional structural diagram showing the combination of the electric telescopic rod, synchronous push frame, and side connecting frame of the present invention.

[0029] Figure 6 This is a three-dimensional structural diagram showing the assembly of the inner lining rotating ring, vertical mounting frame, and rotating vertical frame of the present invention.

[0030] Figure 7 This is a three-dimensional structural diagram of the upper adjusting pressure frame, vertical spring, and annular spherical surface of the present invention;

[0031] Figure 8 This is a three-dimensional structural diagram showing the assembly of the auxiliary half-frame, the mounting half-frame, and the contact conductor strip of the present invention.

[0032] Figure 9 This is a three-dimensional structural schematic diagram showing a partial cross-section of the present invention;

[0033] Figure 10 For the present invention Figure 9 A magnified schematic diagram of the structure at point C in the middle;

[0034] Figure 11 For the present invention Figure 9 A magnified schematic diagram of the local structure at point D;

[0035] Figure 12 This is a cross-sectional three-dimensional structural diagram of the lower discharge pipe, bushing pipe, and limiting arc plate of the present invention.

[0036] Figure 13 This is a three-dimensional structural diagram of the invention viewed from below.

[0037] Figure 14 This is a bottom-view three-dimensional structural diagram of the prism, centering spring, and contact ring of the present invention.

[0038] Figure 15 This is a rear-view perspective three-dimensional structural diagram of the entire invention;

[0039] Figure 16 This is a partial cross-sectional three-dimensional structural diagram of the main frame, ring frame, and first servo motor of the present invention.

[0040] Figure 17 This is a schematic diagram of the compression deformation of the rubber sealing ring when the upper adjusting pressure frame and the lower support bracket are in a relatively parallel state.

[0041] Figure 18 This is a schematic diagram of the compression deformation of the rubber sealing ring when the adjusting frame is tilted to the right in this invention;

[0042] Figure 19 This is a schematic diagram of the compression deformation of the rubber sealing ring when the adjusting frame is tilted to the left in this invention;

[0043] Figure 20 This is a schematic diagram of the output air path of the air pump of the present invention.

[0044] In the diagram: 1. Main frame; 2. Mounting frame; 3. Electric telescopic rod; 4. Upper adjusting pressure frame; 5. Lower support bracket; 6. Ring frame; 7. Camera; 8. Air pump; 9. First servo motor; 10. Center hole; 11. Upper drive parallel plate; 12. Upper follower parallel plate; 13. Lower drive parallel plate; 14. Lower follower parallel plate; 15. Auxiliary half-frame; 16. Mounting half-frame; 17. Vertical spring; 18. Inner lining swivel ring; 19. Vertical mounting frame; 20. Rotating vertical frame; 21. Lifting frame; 22. Electric lifting rod; 23. Contact pressure. 24. Wheel; 25. Second servo motor; 26. Prism-shaped column; 27. Centering spring; 28. Contact ring; 29. ​​Synchronous belt pulley; 30. Synchronous belt; 31. Contact conductor ring; 32. Contact conductor strip; 33. External lead wire; 34. Support bar ball groove; 35. Annular spherical surface; 36. Synchronous push frame; 37. Side connecting frame; 38. Air inlet pipe; 39. Upper feed pipe; 40. Lower discharge pipe; 41. Feed hopper; 42. Bent pipe; 43. Limiting post; 44. Bushing tube; 45. Limiting arc plate; 46. Horizontal rod; 47. Gradient counterweight. Detailed Implementation

[0045] 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.

[0046] For examples, please refer to Figures 1-20A rubber sealing ring performance testing device includes a testing mechanism and a main body mechanism. The main body mechanism includes a main frame 1, on which a mounting frame 2 is fixedly connected. An upper adjustment structure, a lower adjustment structure, and an electric telescopic rod 3 are mounted on the mounting frame 2. The electric telescopic rod 3 provides operating power for the upper and lower adjustment structures. The electric telescopic rod 3 is installed at the left end of the mounting frame 2. A synchronous push frame 35 is fixedly connected to the telescopic rod of the electric telescopic rod 3. The synchronous push frame 35 is connected to two side connecting frames 36, which are respectively fixedly connected to an upper drive parallel plate 11 and a lower drive parallel plate 13. When the electric telescopic rod 3 is powered on, it can adjust the position of the synchronous push frame 35 within the mounting frame 2. The change in position of the synchronous push frame 35 can drive the two side connecting frames 11 and 13. The connecting frame 36 changes its relative position synchronously. The movement of the two side connecting frames 36 enables the rotational adjustment of the upper driving parallel plate 11 and the lower driving parallel plate 13, respectively. The upper and lower adjustment structures are respectively equipped with an upper adjusting pressure frame 4 and a lower support bracket 5. The upper adjustment structure includes an upper driving parallel plate 11 and an upper follower parallel plate 12, and the lower adjustment structure includes a lower driving parallel plate 13 and a lower follower parallel plate 14. The upper driving parallel plate 11, the upper follower parallel plate 12, the lower driving parallel plate 13, and the lower follower parallel plate 14 are all rotatably connected to the mounting frame 2. The lower driving parallel plate 13 and the lower follower parallel plate 14 are both rotatably connected to the lower support bracket 5. The upper driving parallel plate 11 and the upper follower parallel plate 12 are respectively rotatably connected to an auxiliary half-frame 15 and a mounting half-frame 16. The auxiliary half-frame 15 and the mounting half-frame 16 are fixedly connected to each other. The upper adjusting pressure frame 4 is installed between the auxiliary half-frame 15 and the mounting half-frame 16. Support bar ball grooves 33 are provided inside both the auxiliary half-frame 15 and the mounting half-frame 16. An annular spherical surface 34 is fixedly connected to the upper adjusting pressure frame 4, and both support bar ball grooves 33 match the annular spherical surface 34. Two vertical springs 17 are fixedly connected to both the auxiliary half-frame 15 and the mounting half-frame 16, and all four vertical springs 17 are fixedly connected to the upper adjusting pressure frame 4. A pressing assembly is installed between the auxiliary half-frame 15 and the mounting half-frame 16. The pressing assembly is used to drive the upper adjusting pressure frame 4 downwards. Through the design of the main structure, and the detection of the matching rubber sealing ring, a structure simulating the application environment is formed. The application environment simulation form of the rubber sealing ring is more... To enrich the range of rubber sealing rings, which can be applied to various structural forms and sizes, the versatility is significantly improved. The pressing assembly includes an inner liner rotating ring 18, which is rotatably connected between the auxiliary half-frame 15 and the mounting half-frame 16. A vertical mounting frame 19 is fixedly connected to the inner liner rotating ring 18, and a rotating vertical frame 20 is rotatably connected to the vertical mounting frame 19. A lifting frame 21 is slidably connected inside the rotating vertical frame 20. An electric lifting rod 22 is installed at the top of the rotating vertical frame 20, and the bottom end of the lifting rod of the electric lifting rod 22 is connected to the lifting frame 21. A contact pressure roller 23 is installed inside the lifting frame 21, and a second servo motor 24 is installed inside the lifting frame 21. The second servo motor 24 is used to drive the rotation of the contact pressure roller 23. The operation of the pressing assembly can realize the attitude adjustment of the upper adjusting frame 4.This allows the lower support bracket 5 to tilt relative to the body, and the rubber sealing ring to adjust its compression state in response to detection, thus improving the versatility of the filling space in the actual use of the rubber sealing ring.

[0047] It should be further explained that a prismatic column 25 is slidably connected inside the contact pressure roller 23. The prismatic column 25 is rotatably connected inside the lifting frame 21. Two centering springs 26 are fixedly connected inside the lifting frame 21. Each of the two centering springs 26 is fixedly connected to a contact ring 27. The two contact rings 27 are rotatably connected to both ends of the contact pressure roller 23. Synchronous pulleys 28 are connected to both the output shaft of the second servo motor 24 and the prismatic column 25. The two synchronous pulleys 28 are connected by a synchronous belt 29. In actual operation, when the second servo motor 24 is powered on, it can drive the synchronous pulleys 28 on the output shaft to rotate. The rotating synchronous pulley 28 can drive the rotation of another synchronous pulley 28 via the synchronous belt 29, thereby driving the rotation of the prismatic column 25. The rotation of the prismatic column 25 drives the contact pressure roller 23 to rotate. Under the relative friction between the contact pressure roller 23 and the upper adjusting pressure frame 4, the contact pressure roller 23 can roll relative to the upper adjusting pressure frame 4. Furthermore, due to the connection of the four vertical springs 17, the upper adjusting pressure frame 4 can form a rotation limit between the auxiliary half-frame 15 and the mounting half-frame 16. Therefore, when the contact pressure roller 23 rolls relative to the upper adjusting pressure frame 4... During the process, the contact pressure roller 23 can change its relative position to the upper adjusting pressure frame 4, that is, the contact pressure roller 23 rotates and rolls on the upper adjusting pressure frame 4. When the electric lifting rod 22 is powered on and the lifting frame 21 is adjusted in height relative to the rotating vertical frame 20, the height of the contact pressure roller 23 can be adjusted, thereby adjusting the tilt of the upper adjusting pressure frame 4. During this process, when the height of the contact pressure roller 23 decreases, the tilt of the corresponding upper adjusting pressure frame 4 increases, and conversely, when the height of the contact pressure roller 23 increases, the tilt of the corresponding fixed upper adjusting pressure frame 4 decreases. The inner lining swivel 18 is fixedly connected to multiple contact conductor rings 30, and the mounting half frame 16 is fixedly connected to multiple contact conductor strips 31. The multiple contact conductor strips 31 are matched with multiple contact conductor rings 30 respectively. The multiple contact conductor rings 30 are electrically connected to external leads 32. The electric lifting rod 22 and the second servo motor 24 are both electrically connected to the external leads 32. This satisfies the power supply of the electric lifting rod 22 and the second servo motor 24, while ensuring that the electric lifting rod 22 and the second servo motor 24 can form a ring-like adjustment relative to the upper adjusting pressure frame 4, so as to enrich the tilt position of the upper adjusting pressure frame 4.

[0048] Furthermore, the detection mechanism includes a ring frame 6, a camera 7, and an air pump 8. The ring frame 6 is rotatably connected within the main frame 1, the camera 7 is installed inside the ring frame 6, and a first servo motor 9 is installed outside the main frame 1. The first servo motor 9 drives the rotation of the ring frame 6. The air pump 8 is installed outside the main frame 1, and a central hole 10 is opened on the lower support bracket 5, which communicates with the air pump 8. Through the design of the detection mechanism, a rubber sealing ring is provided to form a structure with detection function. During the detection process, information can be collected around the rubber sealing ring according to actual detection needs, resulting in better detection coverage and improved practicality. To enhance performance, an air inlet pipe 37 is connected to the exhaust port of the air pump 8. An upper feed pipe 38 and a lower discharge pipe 39 are connected to the air inlet pipe 37. A feeding hopper 40 is connected to the upper feed pipe 38, and a curved pipe 41 is rotatably connected to the lower discharge pipe 39. The curved pipe 41 is equipped with a limiting post 42, which is fixedly connected to the outer casing of the air pump 8. During actual operation, dye is added to the feeding hopper 40, causing it to tend to fall into the upper feed pipe 38 under gravity. The dye falling into the air inlet pipe 37 is then transported into the internal enclosed space by the operation of the air pump 8. Furthermore, when dye accumulates in the air inlet pipe 37, excess dye will be contained within the confined space. Under the influence of gravity, the dye enters the lower discharge pipe 39 and is collected. When the dye in the lower discharge pipe 39 is recovered, the bent pipe 41 is rotated relative to the lower discharge pipe 39 so that the top end of the bent pipe 41 is lower than the height of the lower discharge pipe 39. This causes the recovered dye in the lower discharge pipe 39 to be discharged outward, facilitating the recovery and reuse of the dye. A bushing 43 is rotatably connected inside the air inlet pipe 37. A limiting arc plate 44 is fixedly connected to the bushing 43. The limiting arc plate 44 matches the upper inlet pipe 38. A vertical groove is opened at the end of the bushing 43 away from the limiting arc plate 44. A horizontal rod 45 is fixedly connected inside the limiting arc plate 44. The horizontal rod 45 rotates upward. The device is connected to a gradually changing counterweight 46. By rotating the bushing tube 43, the limiting arc plate 44 can be rotated and adjusted, thereby restricting the connection between the upper feed pipe 38 and the air inlet pipe 37. That is, when the limiting arc plate 44 blocks the upper part of the air inlet pipe 37, it can block the passage at the bottom of the upper feed pipe 38. Conversely, when the limiting arc plate 44 is rotated and adjusted to the lower part of the air inlet pipe 37, it cannot block the passage between the upper feed pipe 38 and the air inlet pipe 37. In this state, the dye in the upper feed pipe 38 can fall into the air inlet pipe 37. The bushing tube 43 is a blind hole tube. The feed hopper 40 and the bent tube 41 can be detachably fitted with end caps.

[0049] In this embodiment, the electric telescopic pole 3, camera 7, first servo motor 9, electric lifting pole 22, and second servo motor 24 are all commercially available conventional devices known to those skilled in the art. In this invention, we only use them without modifying their structure or function. Their setting method, installation method, and electrical connection method can be easily explained by those skilled in the art by following the instructions for use. Therefore, we will not elaborate on them here.

[0050] In summary, the working principle of this rubber sealing ring performance testing device and method is as follows: Before use, a power supply control circuit is first installed for the electric telescopic rod 3, camera 7, first servo motor 9, electric lifting rod 22, and second servo motor 24. An information transmission circuit is also installed for the camera 7, which is connected to a display. The display can show the video content captured by the camera 7 in real time. During use, the electric telescopic rod 3 is first powered on. The operation of the electric telescopic rod 3 realizes the linkage operation of the upper and lower adjustment structures, thereby adjusting the relative distance between the upper adjusting pressure frame 4 and the lower support bracket 5. The relative distance between the upper adjusting pressure frame 4 and the lower support bracket 5 is increased to ensure that the distance between them is sufficient for the insertion of the rubber sealing ring. The operation of the electric telescopic rod 3 drives the synchronous push frame 35, which in turn drives the movement of the two side connecting frames 36. The movement of the two side connecting frames 36 drives the synchronous relative movement of the upper driving parallel plate 11 and the lower driving parallel plate 13. The upper follower parallel plate 12... With the support of the upper drive parallel plate 11, the movement of the upper drive parallel plate 11 enables the synchronous movement adjustment of the auxiliary half-frame 15 and the installation half-frame 16, which are fixedly connected to each other, thereby adjusting the position of the upper adjusting pressure frame 4. With the support of the lower follower parallel plate 14, the movement of the lower drive parallel plate 13 enables the position adjustment of the lower support bracket 5. During the change of position of the lower support bracket 5, the top surface of the lower support bracket 5 is kept in a horizontal position to facilitate the horizontal placement of the rubber sealing ring to be tested. This makes the subsequent testing of the rubber sealing ring simple, and the rubber sealing ring is less likely to fall off the upper side of the lower support bracket 5 after placement. After the rubber sealing ring is placed on the lower support bracket 5, the electric telescopic rod 3 moves to bring the relative distance between the upper adjusting pressure frame 4 and the lower support bracket 5 closer until the gap between the upper adjusting pressure frame 4 and the lower support bracket 5 can contact and compress the rubber sealing ring. That is, the space between the upper adjusting pressure frame 4 and the lower support bracket 5 is divided into an external open space and an internal closed space by the action of the rubber sealing ring.

[0051] Furthermore, the air pump 8 is activated, pumping compressed gas into the central hole 10 and adding dye to the pumped compressed gas. The compressed gas then enters the internal enclosed space through the central hole 10, filling the internal enclosed space and causing dye to be added. To add dye, simply add it to the feeding hopper 40 and rotate the limiting arc plate 44 to the lower half of the air inlet pipe 37. The dye in the feeding hopper 40 will then fall into the air inlet pipe 37. When the air pump 8 is running, airflow is created in the air inlet pipe 37. This airflow drives and carries the falling dye, ultimately delivering it to the internal enclosed space. If there is air leakage at the contact points between the top and bottom of the rubber sealing ring and the upper adjusting pressure frame 4 and the lower support bracket 5, the leakage of gas at these points will also contribute to the filling of the internal enclosed space. The air pump 8 then pumps the dye into the internal enclosed space. After the constant-pressure compressed air is introduced, the air pump 8 enters a parking state. After the pressure in the internal enclosed space decreases, the air pump 8 can run in real time to replenish the gas. That is, the operation of the air pump can maintain the steady pressure in the internal enclosed space. The rotation drive of the ring frame 6 is achieved by the power-on operation of the first servo motor 9. That is, the operation of the first servo motor 9 drives the drive gear on the output shaft of the first servo motor 9 to rotate. The ring frame 6 is provided with an external gear ring that matches the drive gear. Under the meshing transmission action of the drive gear and the external gear ring, the rotation drive of the ring frame 6 is achieved. Finally, the camera 7 rotates around the rubber sealing ring, forming an image coverage acquisition around the rubber sealing ring. The sealing performance of the rubber sealing ring is judged based on the dye staining in the acquired image, and the leakage area on the rubber sealing ring is accurately determined. That is, the area outside the rubber sealing ring with dye is the leakage area. Conversely, when there is no dye staining on the outside of the rubber sealing ring, it indicates that the rubber sealing ring has a good sealing effect.

[0052] Furthermore, by energizing the electric lifting rod 22, the height of the contact pressure roller 23 can be adjusted. The contact pressure roller 23 then pushes the upper adjusting frame 4, allowing for tilt adjustment of the upper adjusting frame 4. This enriches the application of the rubber seal ring, thereby improving the fit between the tested state and the actual usage state, ensuring the testing effect of the rubber seal ring. During the testing process, the second servo motor 24 is energized to drive the rotation of the contact pressure roller 23, adjusting its position on the upper adjusting frame 4, and ultimately adjusting the tilt direction of the upper adjusting frame 4. Different positions of the sealing ring create specific compression amplitudes, enriching the detection status of the rubber sealing ring. During the tilting and pushing process of the contact pressure roller 23 against the upper adjusting pressure frame 4, the rotation between the vertical mounting frame 19 and the rotating vertical frame 20 allows the contact pressure roller 23 to tilt in tandem with the top plane of the upper adjusting pressure frame 4, ensuring that the wheel surface of the contact pressure roller 23 fits snugly against the upper adjusting pressure frame 4. Simultaneously, the sliding movement between the contact pressure roller 23 and the prismatic column 25 provides the contact pressure roller 23 with radial freedom of movement, reducing the relative rigidity of the contact pressure roller 23 against the upper adjusting pressure frame 4 and ensuring that the contact pressure roller 23 can adapt to the posture adjustment of the upper adjusting pressure frame 4 to achieve a follow-up position change. In actual testing, after the above testing operations are completed, the electric telescopic rod 3 can be powered on to adjust the relative distance between the upper adjusting pressure frame 4 and the lower support bracket 5, thereby eliminating the squeezing effect of the rubber sealing ring between the upper adjusting pressure frame 4 and the lower support bracket 5. Afterward, the inner ring of the rubber sealing ring becomes visible. By capturing the inner space of the rubber sealing ring, the structural changes of the rubber sealing ring before and after deformation under pressure can be observed. Because the rubber sealing ring deforms under pressure, the deformed rubber sealing ring forms a tight contact surface with the upper adjusting pressure frame 4 and the lower support bracket 5. Therefore, this contact surface will not be affected by dye. Dyeing is used to further analyze the structural characteristics of the rubber sealing ring after compression deformation based on the distribution of the dye-dyed area. To facilitate observation of the entire testing process, the upper adjusting frame 4 and lower support bracket 5 can be made of transparent material to allow for observation of the contact points between the rubber sealing ring and these components during testing. For the dye, water-soluble dyes should be selected to facilitate cleaning of the upper adjusting frame 4 and lower support bracket 5 after use, as well as the recovery and reuse of adhering dye after filtration. A wide-angle camera 7 should be used to enrich the effective image acquisition range, as shown in the attached diagram. Figure 17 The image shows the compression deformation of the rubber sealing ring when the upper adjusting bracket 4 and the lower support bracket 5 are relatively parallel. At this point, the deformation of the entire circumference of the rubber sealing ring is uniform in height. Figure 18 and attached Figure 19The schematic diagrams show the upper adjusting pressure frame 4 tilted to the right and tilted to the left, respectively. The pressure roller 23 needs to rotate 180 degrees relative to the upper adjusting pressure frame 4 between these two states for adjustment. Figure 20 This is a schematic diagram of the output air path of air pump 8, where the arrows indicate the direction of the gas flow. During the actual flow process, the dye will not enter the interior of air pump 8 and affect its operation. Both the feed hopper 40 and the curved pipe 41 are detachable and equipped with end caps. When air pump 8 is running, both end caps should be installed in their correct positions to avoid leakage of compressed air.

[0053] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A rubber sealing ring performance testing device, comprising a testing mechanism, characterized in that, It also includes a main body mechanism, which includes a main frame (1), a mounting bracket (2) fixedly connected to the main frame (1), an upper adjustment structure, a lower adjustment structure and an electric telescopic rod (3) installed on the mounting bracket (2), the electric telescopic rod (3) provides running power for the upper adjustment structure and the lower adjustment structure, the upper adjustment structure and the lower adjustment structure are respectively equipped with an upper pressure adjustment bracket (4) and a lower support bracket (5), the detection mechanism includes a ring frame (6), a camera (7) and an air pump (8), the ring frame (6) is rotatably connected inside the main frame (1), the camera (7) is installed inside the ring frame (6), a first servo motor (9) is installed outside the main frame (1), the first servo motor (9) is used to drive the rotation of the ring frame (6), the air pump (8) is installed outside the main frame (1), and a center hole (10) is opened on the lower support bracket (5), the center hole (10) is connected to the air pump (8); In use, by controlling the operation of the electric telescopic rod (3), the relative distance between the upper adjusting pressure frame (4) and the lower support bracket (5) is adjusted. The rubber sealing ring is placed between the upper adjusting pressure frame (4) and the lower support bracket (5), so that the space between the upper adjusting pressure frame (4) and the lower support bracket (5) is divided into an external open space and an internal closed space by the action of the rubber sealing ring, so as to add dye to the pumped compressed gas.

2. The rubber sealing ring performance testing device according to claim 1, characterized in that, The upper adjustment structure includes an upper driving parallel plate (11) and an upper follower parallel plate (12), and the lower adjustment structure includes a lower driving parallel plate (13) and a lower follower parallel plate (14). The upper driving parallel plate (11), the upper follower parallel plate (12), the lower driving parallel plate (13), and the lower follower parallel plate (14) are all rotatably connected to the mounting frame (2), and the lower driving parallel plate (13) and the lower follower parallel plate (14) are both rotatably connected to the lower support bracket (5). The upper driving parallel plate (11) and the upper follower parallel plate (12) are respectively rotatably connected. An auxiliary half-frame (15) and an installation half-frame (16) are connected together. The auxiliary half-frame (15) and the installation half-frame (16) are fixedly connected to each other. The upper adjusting pressure frame (4) is installed between the auxiliary half-frame (15) and the installation half-frame (16). Both the auxiliary half-frame (15) and the installation half-frame (16) are fixedly connected to two vertical springs (17). All four vertical springs (17) are fixedly connected to the upper adjusting pressure frame (4). A pressing assembly is installed between the auxiliary half-frame (15) and the installation half-frame (16). The pressing assembly is used for the pressing drive of the upper adjusting pressure frame (4).

3. The rubber sealing ring performance testing device according to claim 2, characterized in that, The pressing assembly includes an inner liner rotating ring (18), which is rotatably connected between the auxiliary half-frame (15) and the mounting half-frame (16). A vertical mounting frame (19) is fixedly connected to the inner liner rotating ring (18), and a rotating vertical frame (20) is rotatably connected to the vertical mounting frame (19). A lifting frame (21) is slidably connected inside the rotating vertical frame (20). An electric lifting rod (22) is installed at the top of the rotating vertical frame (20), and the bottom end of the lifting rod of the electric lifting rod (22) is connected to the lifting frame (21). A contact pressure roller (23) is installed inside the lifting frame (21), and a second servo motor (24) is installed inside the lifting frame (21). The second servo motor (24) is used to drive the rotation of the contact pressure roller (23).

4. The rubber sealing ring performance testing device according to claim 3, characterized in that, A prismatic column (25) is slidably connected inside the contact pressure roller (23). The prismatic column (25) is rotatably connected inside the lifting frame (21). Two centering springs (26) are fixedly connected inside the lifting frame (21). Each of the two centering springs (26) is fixedly connected to a contact ring (27). The two contact rings (27) are rotatably connected to both ends of the contact pressure roller (23). A synchronous pulley (28) is connected to both the output shaft of the second servo motor (24) and the prismatic column (25). The two synchronous pulleys (28) are connected to each other by a synchronous belt (29).

5. The rubber sealing ring performance testing device according to claim 4, characterized in that, The inner lining swivel (18) is fixedly connected to a plurality of contact conductor rings (30), and the mounting half frame (16) is fixedly connected to a plurality of contact conductor strips (31). The plurality of contact conductor strips (31) are respectively matched with the plurality of contact conductor rings (30). The plurality of contact conductor rings (30) are electrically connected to external leads (32). The electric lifting rod (22) and the second servo motor (24) are both electrically connected to the external leads (32).

6. The rubber sealing ring performance testing device according to claim 5, characterized in that, Both the auxiliary half-frame (15) and the installation half-frame (16) are provided with support bar ball grooves (33), and the upper adjusting pressure frame (4) is fixedly connected with an annular spherical surface (34). Both of the support bar ball grooves (33) are matched with the annular spherical surface (34).

7. The rubber sealing ring performance testing device according to claim 6, characterized in that, The telescopic rod (3) of the electric telescopic rod is fixedly connected to a synchronous pusher (35), and the synchronous pusher (35) is connected to two side connecting frames (36). The two side connecting frames (36) are fixedly connected to the upper drive parallel plate (11) and the lower drive parallel plate (13) respectively.

8. The rubber sealing ring performance testing device according to claim 7, characterized in that, The exhaust port of the air pump (8) is connected to an air inlet pipe (37), and the air inlet pipe (37) is connected to an upper feed pipe (38) and a lower discharge pipe (39). The upper feed pipe (38) is connected to a feeding hopper (40), and the lower discharge pipe (39) is rotatably connected to a curved pipe (41). The curved pipe (41) is equipped with a limit post (42), and the limit post (42) is fixedly connected to the outer casing of the air pump (8).

9. The rubber sealing ring performance testing device according to claim 8, characterized in that, A bushing (43) is rotatably connected inside the air inlet pipe (37). A limiting arc plate (44) is fixedly connected to the bushing (43). The limiting arc plate (44) matches the upper feed pipe (38). A vertical groove is provided at the end of the bushing (43) away from the limiting arc plate (44). A transverse rod (45) is fixedly connected inside the limiting arc plate (44). A gradient counterweight (46) is rotatably connected to the transverse rod (45).

10. A method for testing the performance of a rubber sealing ring, characterized in that, The rubber seal performance testing device according to any one of claims 1-9 includes the following steps: S1. When in use, first connect the control power to the electric telescopic rod (3). The operation of the electric telescopic rod (3) realizes the linkage operation of the upper adjustment structure and the lower adjustment structure, thereby realizing the adjustment of the relative distance between the upper adjustment pressure frame (4) and the lower support bracket (5). Control the increase of the relative distance between the upper adjustment pressure frame (4) and the lower support bracket (5) so that the distance between the upper adjustment pressure frame (4) and the lower support bracket (5) can meet the insertion of the rubber sealing ring. S2. Place a rubber sealing ring on the lower support bracket (5) and operate the electric telescopic rod (3) to bring the relative distance between the upper adjusting pressure frame (4) and the lower support bracket (5) closer until the gap between the upper adjusting pressure frame (4) and the lower support bracket (5) can contact and squeeze the rubber sealing ring. That is, the space between the upper adjusting pressure frame (4) and the lower support bracket (5) is divided into an external open space and an internal closed space by the action of the rubber sealing ring. S3. Start the air pump (8). The air pump (8) pumps compressed gas into the center hole (10) and adds dye to the pumped compressed gas. The compressed gas enters the internal closed space through the center hole (10). The compressed gas entering the internal closed space will fill the internal closed space, and the space filled by the gas in the internal closed space will also be dyed with dye. S4. When there is air leakage at the contact points between the top and bottom of the rubber sealing ring and the upper regulating bracket (4) and the lower support bracket (5) respectively, the leakage of gas at the leakage point will also form the filling of dye. After the air pump (8) operates to pump the constant pressure compressed air into the internal closed space, the air pump (8) enters the parking state. After the pressure in the internal closed space decreases, the air pump (8) can run in real time to replenish the gas. S5. The first servo motor (9) is powered on to drive the rotation of the ring frame (6), which eventually forms the circular motion of the camera (7) relative to the rubber sealing ring, and forms an image coverage acquisition around the rubber sealing ring. The sealing performance of the rubber sealing ring is judged based on the dye staining situation in the acquired image, and the area of ​​air leakage on the rubber sealing ring is accurately determined.

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