Device and method for detecting performance of rubber sealing ring

Abstract

The invention relates to the technical field of rubber sealing ring performance detection devices, and provides a rubber sealing ring performance detection device and method, the rubber sealing ring performance detection device is matched with a rubber sealing ring to form a corresponding detection function structure, the detection universality is better, the application environment simulation form of the rubber sealing ring is richer, and the practicability and the universality are remarkably improved. Comprising a detection mechanism and further comprises a main body mechanism, the main body mechanism comprises a main body frame, a mounting frame is fixedly connected to the main body frame, an upper position adjusting structure, a lower position adjusting structure and an electric telescopic rod are mounted on the mounting frame, and the electric telescopic rod provides operation power for the upper position adjusting structure and the lower position adjusting structure; the upper position adjusting structure and the lower position adjusting structure are provided with an upper adjusting pressing frame and a lower supporting bracket respectively, the detection mechanism comprises an annular frame, a camera and an air pump, the annular frame is rotationally connected into the main body frame, the camera is installed in the annular frame, a first servo motor is installed outside the main body frame, and the first servo motor is used for driving the annular frame to rotate.

Description

Technical Field

[0001] The present invention relates to the technical field of rubber sealing ring performance detection devices, and in particular to a rubber sealing ring performance detection device and method. Background Art

[0002] As we all know, a rubber sealing ring is an annular sealing element used to prevent liquid or gas leakage. It is usually made of rubber material. Its main function is to fill the gap between two connecting parts and achieve sealing in a static or moving state. To facilitate the evaluation of the performance of rubber sealing rings, we propose a rubber sealing ring performance detection device and method.

[0003] After searching, the Chinese patent application number CN202223150546.4 discloses a performance detection device for a sealing ring, which is roughly described as comprising a workbench, an air inlet pipe, a glass tube and a plurality of air outlets. A driving mechanism is installed on the workbench, and a detection mechanism is installed on the top of the driving mechanism. The detection mechanism comprises a sealing cover installed on the driving mechanism, the air inlet pipe is fixedly plugged into the top outer wall of the sealing cover, one end of the air inlet pipe is fixedly connected to a detection piece, a plurality of air outlets are all provided on the bottom outer wall of the detection piece, one end of the glass tube is plugged into the top outer wall of the sealing cover, and a display ball is placed inside the glass tube. When in use, by setting the detection 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 judge whether there is a problem with the sealing ring. After searching, the Chinese patent application number CN2 Patent 02020773304.2 discloses an elasticity detection device for fluororubber, which is roughly described as including a base and a tension detector. A column is provided on the surface of the base, a slide rail is installed on one side of the column, and a mounting plate is welded to the surface of the column below the slide rail. One end of the screw rod passes through the surface of the mounting plate and is connected to the output end of the motor through a coupling. The slider is screwed to the surface of the screw rod and is slidably connected to the slide rail. One side of the slider is equipped with a mounting frame by bolts. The tension detector is installed on the mounting frame through a fixing ring sleeve. The output end of the tension detector is installed with a fixing mechanism. When in use, the tension detector is used to enable the sealing ring to be stretched in the vertical direction. The elasticity of the fluororubber is detected according to the reading on the tension detector and the deformation effect of the sealing ring, thereby ensuring that the fluororubber sealing ring has good performance.

[0004] Although the above-mentioned existing technical solutions can realize the performance detection of the sealing ring, by analyzing the attached drawings of the two, it can be obviously judged that the above-mentioned two sets of existing solutions can be better applied to the completely circular rubber sealing ring. In actual circumstances, the specific structural form of the rubber sealing ring will be selected and set according to the actual gap structure between the two connecting parts. At the same time, the rubber sealing ring forms a filling seal in the gap structure through the elastic deformation of its own structure. Therefore, considering the actual application environment, the filling gap of the rubber sealing ring has different shapes, and it is inevitable that there will be a gradually deformed structure. Therefore, the fit of the actual environment simulation in the above-mentioned two sets of technical solutions needs to be further improved, and the detection reliability of the corresponding rubber sealing ring also needs to be further strengthened. Summary of the Invention

[0005] In response to the shortcomings of the existing technology, the present invention provides a rubber sealing ring performance detection device and method, which is equipped with a rubber sealing ring to form a corresponding detection function structure, has better detection versatility, and the application environment simulation forms of the rubber sealing ring are richer, and the practicality and versatility are significantly improved.

[0006] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: A rubber sealing ring performance detection device, comprising a detection mechanism and a main body mechanism, the main body mechanism comprising a main frame, a mounting frame fixedly connected to the main frame, an upper adjustment structure, a lower adjustment structure and an electric telescopic rod installed on the mounting frame, the electric telescopic rod providing operating power for the upper adjustment structure and the lower adjustment structure, the upper adjustment structure and the lower adjustment structure are respectively installed with an upper adjustment pressure frame and a lower support bracket, the detection mechanism comprises an annular frame, a camera and an air pump, the annular frame is rotatably connected to the main frame, the camera is installed in the annular frame, a first servo motor is installed outside the main frame, the first servo motor is used for rotational driving of the annular frame, the air pump is installed outside the main frame, a center hole is opened on the lower support bracket, and the center hole is connected to the air pump.

[0007] The axle up and down groove at two ends embeds respectively in two guide rails up and down of being made up of the groove on the attachment piece, and the tooth on the attachment piece is meshed with tooth on upper sprocket wheel, the lower sprocket. The lower sprocket. The lower sprocket. The lower sprocket. The lower sprocket. The lower sprocket. The lower sprocket. The lower sprocket. The lower sprocket.

[0008] Preferably, the down-pressing assembly includes an inner lining swivel, which is rotatably connected between the auxiliary half-frame and the mounting half-frame, a vertical mounting frame is fixedly connected to the inner lining swivel, a rotating vertical frame is rotatably connected to the vertical mounting frame, a lifting frame is slidably connected to the rotating vertical frame, an electric lifting rod is installed at the top of the rotating vertical frame, the bottom end of the lifting rod of the electric lifting rod is connected to the lifting frame, a contact pressure wheel is installed in the lifting frame, a second servo motor is installed in the lifting frame, and the second servo motor is used for driving the rotation of the contact pressure wheel.

[0009] Preferably, a prismatic column is slidably connected inside the contact pressure wheel, the prismatic column is rotatably connected inside the lifting frame, two centering springs are fixedly connected inside the lifting frame, the two centering springs are fixedly connected to contact rings, the two contact rings are rotatably connected to the two ends of the contact pressure wheel respectively, the output shaft of the second servo motor and the prismatic column are connected to synchronous pulleys, and the two synchronous pulleys are connected by a synchronous belt transmission.

[0010] Preferably, the inner lining swivel is fixedly connected to a plurality of contact conductor rings, the mounting half frame is fixedly connected to a plurality of contact conductor bars, the plurality of contact conductor bars 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, support bar ball grooves are provided in both the auxiliary half frame and the installation half frame, an annular spherical surface is fixedly connected to the upper adjustment pressure frame, and the two support bar ball grooves are matched with the annular spherical surface.

[0012] Preferably, a synchronous pushing frame is fixedly connected to the telescopic rod of the electric telescopic rod, and the synchronous pushing frame is connected to two side connecting frames, and the two side connecting frames are respectively fixedly connected to the upper driving parallel plate and the lower driving 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 bent pipe, the bent pipe is equipped with a limiting column, and the limiting column is fixedly connected to the outer shell of the air pump.

[0014] Preferably, a bushing tube is rotatably connected in the air inlet pipe, a limiting arc plate is fixedly connected to the bushing tube, the limiting arc plate matches the upper feed pipe, a vertical groove is provided at one end of the bushing tube away from the limiting arc plate, a transverse rod is fixedly connected in the limiting arc plate, and a gradual counterweight is rotatably connected to the transverse rod.

[0015] A method for testing the performance of a rubber sealing ring comprises the following steps: S1. When in use, first turn on the control power supply for the electric telescopic rod, and realize the linkage operation of the upper adjustment structure and the lower adjustment structure through the operation of the electric telescopic rod, and then realize the adjustment of the relative distance between the upper adjustment pressure frame and the lower support bracket, and control the relative distance between the upper adjustment pressure frame and the lower support bracket to increase so that the distance between the upper adjustment pressure frame and the lower support bracket can meet the placement of the rubber sealing ring; S2. Place a rubber sealing ring on the lower support bracket and operate the electric telescopic rod to close the relative distance between the upper adjustable pressure frame and the lower support bracket until the gap between the upper adjustable pressure frame and the lower support bracket can form contact and compression with the rubber sealing ring, that is, the space between the upper adjustable pressure frame 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; S3. Starting the air pump to pump compressed gas into the central hole through the air pump, and adding dye to the pumped compressed gas, so that the compressed gas enters the internal enclosed space through the central hole. The compressed gas entering the internal enclosed space fills the internal enclosed space, and the space filled with gas in the internal enclosed space is also dyed with dye; S4. When there is air leakage at the top and bottom of the rubber sealing ring in contact with the upper adjustment pressure frame and the lower support bracket respectively, the gas will leak out of the leaking part and the dye will be filled. After the air pump operates to pump compressed air at a constant pressure into the internal closed space, the air pump enters a parked state. After the pressure in the internal closed space drops, the air pump can operate in real time to replenish the gas. S5. The annular frame is driven to rotate by powering on the first servo motor, and finally the camera is caused to move in a circular motion relative to the rubber sealing ring, so as to capture an image covering the periphery of the rubber sealing ring. The sealing performance of the rubber sealing ring is determined based on the dye staining in the captured image, and the area of ​​air leakage on the rubber sealing ring is accurately determined.

[0016] Compared with the prior art, the present invention provides a rubber sealing ring performance detection device and method, which has the following beneficial effects: (1) In the present invention, the detection mechanism is designed and the rubber sealing ring is matched to form a structure with detection function. During the detection process, a surround-type information collection can be formed around the rubber sealing ring according to actual detection needs, so the detection coverage is better and the practicality is further enhanced.

[0017] (2) In the present invention, through the design of the main body structure, the detection of the supporting rubber sealing ring forms a structure for simulating the application environment. The application environment simulation form of the rubber sealing ring is richer and can be applied to rubber sealing rings of various structural forms and specifications and sizes, and the versatility is significantly improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1It is a schematic diagram of the overall three-dimensional structure of the present invention; Figure 2 For the present invention Figure 1 Schematic diagram of the local enlarged structure at A in the middle; Figure 3 It is a schematic diagram of the three-dimensional structure of the main frame, mounting frame and vertical mounting frame of the present invention; Figure 4 For the present invention Figure 3 Schematic diagram of the local enlarged structure at B in the middle; Figure 5 It is a schematic diagram of the exploded three-dimensional structure of the electric telescopic rod, synchronous push frame and side connecting frame of the present invention; Figure 6 It is a schematic diagram of the exploded three-dimensional structure of the inner liner swivel, vertical mounting frame and vertical rotating frame of the present invention; Figure 7 This is a schematic diagram of the three-dimensional structure of the upper adjustment pressure frame, vertical spring and annular spherical surface of the present invention; Figure 8 This is a schematic diagram of the exploded three-dimensional structure of the auxiliary half-frame, the installation half-frame and the contact conductor strips of the present invention; Figure 9 It is a schematic diagram of a partially cutaway three-dimensional structure of the present invention; Figure 10 For the present invention Figure 9 Schematic diagram of the local enlarged structure at C in the middle; Figure 11 For the present invention Figure 9 Schematic diagram of the local enlarged structure at D in the middle; Figure 12 It is a schematic diagram of a cross-sectional three-dimensional structure of the lower discharge pipe, the bushing pipe and the limiting arc plate of the present invention; Figure 13 It is a schematic diagram of the overall three-dimensional structure of the present invention when viewed from above; Figure 14 It is a bottom-view schematic diagram of the three-dimensional structure of the prismatic column, centering spring, contact ring, etc. of the present invention; Figure 15 It is a schematic diagram of the three-dimensional structure of the present invention as a whole from the rear side; Figure 16 It is a partially cutaway three-dimensional structural diagram of the main frame, annular frame and first servo motor of the present invention; Figure 17 Schematic diagram of the compression deformation of the rubber sealing ring when the upper adjustment press frame and the lower support bracket are relatively parallel to each other; Figure 18 Schematic diagram of the compression deformation of the rubber sealing ring when the upper adjustment pressing frame of the present invention is tilted to the right; Figure 19Schematic diagram of the compression deformation of the rubber sealing ring when the upper adjustment pressing frame of the present invention is tilted to the left; Figure 20 Schematic diagram of the output gas path of the air pump of the present invention.

[0019] In the figure: 1. Main frame; 2. Mounting frame; 3. Electric telescopic rod; 4. Upper adjustment pressure frame; 5. Lower support bracket; 6. Ring frame; 7. Camera; 8. Air pump; 9. First servo motor; 10. Center hole; 11. Upper driving parallel plate; 12. Upper follower parallel plate; 13. Lower driving parallel plate; 14. Lower follower parallel plate; 15. Auxiliary half frame; 16. Mounting half frame; 17. Vertical spring; 18. Liner swivel; 19. Vertical mounting frame; 20. Vertical rotating frame; 21. Lifting frame; 22. Electric lifting rod; 23. Contact pressure Wheel; 24. Second servo motor; 25. Prismatic column; 26. Centering spring; 27. Contact ring; 28. Synchronous pulley; 29. ​​Synchronous belt; 30. Contact conductor ring; 31. Contact conductor bar; 32. External lead; 33. Support bar ball groove; 34. Annular spherical surface; 35. Synchronous push frame; 36. Side connecting frame; 37. Air inlet pipe; 38. Upper feed pipe; 39. Lower discharge pipe; 40. Feed hopper; 41. Bend pipe; 42. Limit column; 43. Bushing tube; 44. Limit arc plate; 45. Transverse rod; 46. Gradual counterweight. DETAILED DESCRIPTION

[0020] 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.

[0021] For examples, see Figures 1-20, a rubber sealing ring performance detection device includes a detection mechanism and a main body mechanism, the main body mechanism includes a main frame 1, the main frame 1 is fixedly connected to a mounting frame 2, the mounting frame 2 is installed with an upper adjustment structure, a lower adjustment structure and an electric telescopic rod 3, the electric telescopic rod 3 provides operating power for the upper adjustment structure and the lower adjustment structure, the electric telescopic rod 3 is installed at the left end of the mounting frame 2, and 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, and the two side connecting frames 36 are respectively fixedly connected to the upper driving parallel plate 11 and the lower driving parallel plate 13. When the electric telescopic rod 3 is powered on, the position of the synchronous push frame 35 in the mounting frame 2 can be adjusted, and the position change of the synchronous push frame 35 can drive the two side connecting frames 36 to move. The connecting frame 36 forms a synchronous relative position change, and the movement of the two side connecting frames 36 can respectively realize the rotation adjustment of the upper driving parallel plate 11 and the lower driving parallel plate 13. The upper adjustment structure and the lower adjustment structure are respectively installed with the upper adjustment press frame 4 and the lower support bracket 5. The upper adjustment structure includes the upper driving parallel plate 11 and the upper follower parallel plate 12, and the lower adjustment structure includes the lower driving parallel plate 13 and the 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 all 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 the auxiliary half frame 15 and the mounting half frame 16. The auxiliary half frame 15 and the installation half frame 16 are fixedly connected to each other, and the upper adjustment pressure frame 4 is installed between the auxiliary half frame 15 and the installation half frame 16. Support bar ball grooves 33 are provided in the auxiliary half frame 15 and the installation half frame 16. An annular spherical surface 34 is fixedly connected to the upper adjustment pressure frame 4, and the two support bar ball grooves 33 are matched with the annular spherical surface 34. The auxiliary half frame 15 and the installation half frame 16 are fixedly connected to two vertical springs 17, and the four vertical springs 17 are fixedly connected to the upper adjustment pressure frame 4. A downward pressing component is installed between the auxiliary half frame 15 and the installation half frame 16. The downward pressing component is used for the downward pressing drive of the upper adjustment pressure frame 4. Through the design of the main mechanism and the detection of the supporting rubber sealing ring, a structure simulating the application environment is formed, and the application environment simulation form of the rubber sealing ring is more In order to enrich the rubber sealing rings that can be applied to various structural forms and specifications, the versatility has been significantly improved. The lower pressure component includes an inner lining swivel 18, which is rotatably connected between the auxiliary half frame 15 and the installation half frame 16. The inner lining swivel 18 is fixedly connected to the vertical mounting frame 19, and the vertical mounting frame 19 is rotatably connected to the vertical mounting frame 20. The vertical mounting frame 20 is slidably connected with a lifting frame 21. The top of the vertical mounting frame 20 is installed with an electric lifting rod 22, and the bottom end of the lifting rod of the electric lifting rod 22 is connected to the lifting frame 21. A contact pressure wheel 23 is installed in the lifting frame 21, and a second servo motor 24 is installed in the lifting frame 21. The second servo motor 24 is used for the rotation drive of the contact pressure wheel 23. The operation of the lower pressure component can realize the posture adjustment of the upper adjustment pressure frame 4.It can push the lower support bracket 5 to form a relative posture tilt, and adjust the rubber sealing ring to form a pressed state in response to the detection, thereby improving the diversity of the filling space of the rubber sealing ring in actual use.

[0022] It should be further explained that a prismatic column 25 is slidably connected to the contact pressure wheel 23, and the prismatic column 25 is rotatably connected to the lifting frame 21. Two centering springs 26 are fixedly connected to the lifting frame 21. The two centering springs 26 are fixedly connected to contact rings 27. The two contact rings 27 are rotatably connected to the two ends of the contact pressure wheel 23 respectively. The output shaft of the second servo motor 24 and the prismatic column 25 are both connected to a synchronous pulley 28. The two synchronous pulleys 28 are connected through a synchronous belt 29. During actual operation, when the second servo motor 24 is powered on, it can drive the synchronous pulley 28 on the output shaft to rotate. The rotating synchronous pulley 28 can realize the rotation movement of another synchronous pulley 28 through the transmission of the synchronous belt 29, and then realize the rotation drive of the prismatic column 25. The rotation of the prismatic column 25 drives the contact pressure wheel 23 to rotate. Under the relative friction between the contact pressure wheel 23 and the upper adjustment pressure frame 4, the rotation of the contact pressure wheel 23 can form a rolling adjustment relative to the upper adjustment pressure frame 4, and due to the connection effect of the four vertical springs 17, the upper adjustment pressure frame 4 can form a rotation limit between the auxiliary half frame 15 and the installation half frame 16. Therefore, when the contact pressure wheel 23 forms a rolling motion relative to the upper adjustment pressure frame 4 During the process, the relative position of the contact pressure wheel 23 with respect to the upper adjustment pressure frame 4 can be changed, that is, the contact pressure wheel 23 forms a rotational rolling motion on the upper adjustment pressure frame 4. When the electric lifting rod 22 is powered on and the lifting frame 21 is adjusted in height relative to the vertical rotation frame 20, the height adjustment of the contact pressure wheel 23 can be achieved, and then the inclination degree of the upper adjustment pressure frame 4 can be adjusted. In this process, when the height of the contact pressure wheel 23 is reduced, the corresponding inclination amplitude of the upper adjustment pressure frame 4 will increase. Conversely, when the height of the contact pressure wheel 23 is increased, the inclination amplitude of the corresponding fixed upper adjustment pressure frame 4 will decrease. 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, which meets 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 surround adjustment relative to the upper adjustment pressure frame 4 to enrich the tilt position of the upper adjustment pressure frame 4.

[0023] It should be further explained that the detection mechanism includes a ring frame 6, a camera 7 and an air pump 8. The ring frame 6 is rotatably connected to the main frame 1, the camera 7 is installed in the ring frame 6, and 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. A center hole 10 is opened on the lower support bracket 5, and the center hole 10 is connected to the air pump 8. Through the design of the detection mechanism, the matching rubber sealing ring forms a structure with a detection function. During the detection process, a surround-type information collection can be formed around the rubber sealing ring according to actual detection needs, and the detection coverage is better, and the practicality is further improved. The exhaust port of the air pump 8 is connected with an air inlet pipe 37, and the air inlet pipe 37 is connected with an upper feed pipe 38 and a lower discharge pipe 39. The upper feed pipe 38 is connected with a feeding hopper 40, and the lower discharge pipe 39 is rotatably connected with a curved pipe 41. The curved pipe 41 is equipped with a limiting column 42, and the limiting column 42 is fixedly connected to the outer shell of the air pump 8. During actual operation, by adding dye into the feeding hopper 40, the dye has a tendency to fall into the upper feed pipe 38 under the action of gravity, and the dye falling into the air inlet pipe 37 will be transported into the internal closed space through the operation of the air pump 8, and when dye aggregates in the air inlet pipe 37, the excess dye will be discharged in the air inlet pipe 37. Under the action of body gravity, it enters the lower discharge pipe 39 for collection. 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, which will prompt the recovered dye in the lower discharge pipe 39 to be discharged externally, so as to facilitate the recycling of the dye. A bushing 43 is rotatably connected to the air inlet pipe 37, and 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 side groove is provided at one end of the bushing 43 away from the limiting arc plate 44. A transverse rod 45 is fixedly connected to the limiting arc plate 44. The transverse rod 45 is rotated upward It is dynamically connected with a gradual counterweight 46, and the limiting arc plate 44 can be rotated and adjusted by rotating the bushing tube 43, so as to limit the communication between the upper feed pipe 38 and the air inlet pipe 37, that is, when the limiting arc plate 44 blocks the upper half of the air inlet pipe 37, it can block the passage at the bottom of the upper feed pipe 38. On the contrary, when the limiting arc plate 44 is rotated and adjusted to the lower half 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, and the feeding hopper 40 and the curved tube 41 are both removably installed with end covers.

[0024] The electric telescopic rod 3, camera 7, first servo motor 9, electric lifting rod 22 and second servo motor 24 in this embodiment are all conventional equipment purchased on the market and well known to those skilled in the art. In the present invention, we only use them and do not improve their structure and function. For those skilled in the art, their setting method, installation method and electrical connection method only need to be debugged according to the requirements of the instruction manual, and will not be described in detail here.

[0025] In summary, the working principle of the rubber sealing ring performance detection device and method is as follows: before use, first install a power supply control circuit for the electric telescopic rod 3, the camera 7, the first servo motor 9, the electric lifting rod 22 and the second servo motor 24, and install an information transmission circuit for the camera 7. The information transmission circuit is connected to a display, and the camera 7 can display the camera content of the camera 7 in real time through the display. When in use, first turn on the control power supply for the electric telescopic rod 3, and realize the linkage operation of the upper adjustment structure and the lower adjustment structure through the operation of the electric telescopic rod 3, and then realize the adjustment of the relative distance between the upper adjustment pressure frame 4 and the lower support bracket 5, and control the relative distance between the upper adjustment pressure frame 4 and the lower support bracket 5 to increase 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. The electric telescopic rod 3 is powered on to realize the movement drive of the synchronous push frame 35, and the movement of the synchronous push frame 35 realizes the movement drive of the two side connecting frames 36. The movement of the two side connecting frames 36 realizes the synchronous relative movement drive of the upper drive parallel plate 11 and the lower drive parallel plate 13, and the upper follower parallel plate 12 Under the supporting function, the movement of the upper driving parallel plate 11 can realize the synchronous movement adjustment of the auxiliary half frame 15 and the installation half frame 16 fixedly connected to each other, and then realize the position adjustment of the upper adjusting press frame 4. Under the supporting function of the lower follower parallel plate 14, the movement of the lower driving parallel plate 13 can realize the position adjustment of the lower supporting bracket 5, and in the process of the position change of the lower supporting bracket 5, the top surface of the lower supporting bracket 5 can be kept in a horizontal plane as a whole, so as to facilitate the horizontal placement of the rubber sealing ring to be tested, and realize the subsequent testing of the rubber sealing ring while the placement operation of the rubber sealing ring is relatively simple. After the placement is completed, the rubber sealing ring is not easy to fall off the upper side of the lower supporting bracket 5. After the rubber sealing ring is placed on the lower supporting bracket 5, the electric telescopic rod 3 is operated to realize the relative distance between the upper adjusting press frame 4 and the lower supporting bracket 5 until the gap between the upper adjusting press frame 4 and the lower supporting bracket 5 can form contact and compression with the rubber sealing ring, that is, the space between the upper adjusting press frame 4 and the lower supporting bracket 5 is divided into an external open space and an internal closed space by the action of the rubber sealing ring.

[0026] Furthermore, the air pump 8 is started, and compressed gas is pumped into the center hole 10 through the operation of the air pump 8, and dye is added to the pumped compressed gas, so that 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 with gas in the internal closed space will also be dyed with dye. When adding dye, it is only necessary to add dye to the feeding hopper 40 and rotate the limiting arc plate 44 to adjust the lower half of the air inlet pipe 37. Then the dye in the feeding hopper 40 will fall into the air inlet pipe 37. When the air pump 8 is running, air circulation is formed in the air inlet pipe 37. The circulating air can drive and carry the falling dye, and finally transport the dye to the internal closed space. When there is air leakage at the top and bottom of the rubber sealing ring and the contact points with the upper adjustment pressure frame 4 and the lower support bracket 5 respectively, the leakage of gas at the leaking point will also form dye filling. The air pump 8 operates as a pump in the internal closed space After the constant pressure compressed air is introduced, the air pump 8 enters a parked state, and after the pressure in the internal enclosed space is reduced, the air pump 8 can be operated in real time to replenish the gas, that is, the operation of the air pump can achieve steady-state maintenance of the pressure in the internal enclosed space, and the rotation drive of the annular frame 6 is realized by powering on the first servo motor 9, that is, the operation of the first servo motor 9 drives the driving gear on the output shaft of the first servo motor 9 to rotate, and the annular frame 6 is provided with an outer gear ring matching the driving gear. Under the meshing transmission action of the driving gear and the outer gear ring, the rotation drive of the annular frame 6 is realized, and finally the camera 7 forms a circular motion 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 according to the dye staining in the captured image, and the leaking area on the rubber sealing ring is accurately judged, that is, the area with staining outside the rubber sealing ring is the leaking area. On the contrary, when there is no dye staining on the outside of the rubber sealing ring, it means that the rubber sealing ring has a good sealing effect.

[0027] Furthermore, since the electric lifting rod 22 is powered on, the height adjustment of the contact pressure wheel 23 can be achieved, and the contact pressure wheel 23 pushes the upper adjustment pressure frame 4, the posture tilt adjustment of the upper adjustment pressure frame 4 can be achieved, so as to enrich the application state of the rubber sealing ring, and then achieve the degree of fit between the detection state of the rubber sealing ring and the actual use state, and ensure the detection effect of the rubber sealing ring. In the detection process, the rotation drive of the contact pressure wheel 23 is realized by powering on the second servo motor 24, and then the position of the contact pressure wheel 23 on the upper adjustment pressure frame 4 is adjusted, and finally the adjustment of the tilt direction of the upper adjustment pressure frame 4 is achieved, and the matching rubber sealing ring is realized. Different positions of the sealing ring form special amplitudes of extrusion, enriching the detection state of the rubber sealing ring. In the process of the contact pressure wheel 23 tilting and pushing the upper adjusting pressure frame 4, the rotation between the vertical mounting frame 19 and the rotating vertical frame 20 can make the contact pressure wheel 23 and the top plane of the upper adjusting pressure frame 4 form a follow-up tilt, so that the wheel surface of the contact pressure wheel 23 is fitted with the upper adjusting pressure frame 4. At the same time, the sliding movement between the contact pressure wheel 23 and the prismatic column 25 can also provide the contact pressure wheel 23 with radial movement freedom, so as to reduce the relative rigid sliding between the contact pressure wheel 23 and the upper adjusting pressure frame 4, and ensure that the contact pressure wheel 23 can match the posture adjustment of the upper adjusting pressure frame 4 to form a follow-up position change. In the actual detection process, after the above-mentioned detection operation is completed, the electric telescopic rod 3 can be powered on to realize the adjustment of the relative distance between the upper adjustment pressure frame 4 and the lower support bracket 5, so that the squeezing effect of the rubber sealing ring between the upper adjustment pressure frame 4 and the lower support bracket 5 is invalid. After that, the scene inside the ring of the rubber sealing ring enters the visual state. By capturing the space inside the ring of the rubber sealing ring, the structural changes of the rubber sealing ring before and after the deformation under pressure can be observed. Since the rubber sealing ring will be deformed under pressure, the deformed rubber sealing ring forms a close contact surface with the upper adjustment pressure frame 4 and the lower support bracket 5, so this part of the contact surface will not be affected by the dye Dyeing, therefore, according to the distribution of dyeing area, the structural characteristics of the rubber sealing ring after compression deformation can be further analyzed. At the same time, in order to facilitate the observation of the entire detection process of the rubber sealing ring, the upper adjustment pressure frame 4 and the lower support bracket 5 can be made of transparent material to facilitate the observation of the contact between the rubber sealing ring and the upper adjustment pressure frame 4 and the lower support bracket 5 during the detection process. For the selection of dyes, water-soluble dyes should be selected to facilitate the cleaning of the upper adjustment pressure frame 4 and the lower support bracket 5 after use, and also to facilitate the recovery of adhered dyes and secondary use after filtration. For the selection of camera 7, a wide-angle camera 7 should be used to enrich the effective acquisition range of the image, as shown in the attached figure. Figure 17 The figure shows the compression deformation of the rubber seal ring when the upper adjustment pressure frame 4 and the lower support bracket 5 are relatively parallel. At this time, the entire surrounding ring of the rubber seal ring is uniformly deformed in height. Figure 18 and attached Figure 19The schematic diagrams are respectively schematic diagrams of the upper adjustment pressure frame 4 tilted to the right and the upper adjustment pressure frame 4 tilted to the left. Between the two states, the contact pressure wheel 23 needs to be rotated 180 degrees relative to the upper adjustment pressure frame 4. Figure 20 The figure is a schematic diagram of the output air path of the air pump 8, in which the arrows indicate the direction of the gas. During the actual flow process, the dye will not enter the interior of the air pump 8 and affect the operation of the air pump 8. The feeding hopper 40 and the curved tube 41 are both removably installed with end covers. When the air pump 8 is running, both end covers should be installed in place to avoid leakage of compressed air.

[0028] 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 detection device, comprising a detection mechanism, characterized in that: The invention also includes a main body mechanism, wherein the main body mechanism includes a main frame (1), a mounting frame (2) is fixedly connected to the main frame (1), an upper adjustment structure, a lower adjustment structure and an electric telescopic rod (3) are installed on the mounting frame (2), the electric telescopic rod (3) provides operating power for the upper adjustment structure and the lower adjustment structure, the upper adjustment structure and the lower adjustment structure are respectively installed with an upper adjustment pressure frame (4) and a lower support bracket (5), the detection mechanism includes an annular frame (6), a camera (7) and an air pump (8), the annular frame (6) is rotatably connected to the main frame (1), the camera (7) is installed in the annular frame (6), a first servo motor (9) is installed outside the main frame (1), the first servo motor (9) is used for rotating the annular 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), and the center hole (10) is communicated with the air pump (8).

2. A rubber sealing ring performance detection 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); 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 all 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 the mounting frame (2); An auxiliary half frame (15) and an installation half frame (16) are connected, the auxiliary half frame (15) and the installation half frame (16) are fixedly connected to each other, the upper adjustment pressure frame (4) is installed between the auxiliary half frame (15) and the installation half frame (16), the auxiliary half frame (15) and the installation half frame (16) are both fixedly connected to two vertical springs (17), the four vertical springs (17) are all fixedly connected to the upper adjustment pressure frame (4), a downward pressing component is installed between the auxiliary half frame (15) and the installation half frame (16), and the downward pressing component is used for downward pressing drive of the upper adjustment pressure frame (4).

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

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

5. A rubber sealing ring performance detection device according to claim 4, characterized in that: The inner lining swivel (18) is fixedly connected to a plurality of contact conductor rings (30) on the outside, and the mounting half frame (16) is fixedly connected to a plurality of contact conductor bars (31) on the inside. The plurality of contact conductor bars (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. A rubber sealing ring performance detection device according to claim 5, characterized in that: A support bar ball groove (33) is provided in both the auxiliary half frame (15) and the installation half frame (16), an annular spherical surface (34) is fixedly connected to the upper adjustment pressure frame (4), and both the support bar ball grooves (33) match the annular spherical surface (34).

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

8. A rubber sealing ring performance detection device according to claim 7, characterized in that: The exhaust port of the air pump (8) is connected to an air inlet pipe (37), an upper feed pipe (38) and a lower discharge pipe (39) are connected to the air inlet pipe (37), 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 limiting column (42), and the limiting column (42) is fixedly connected to the outer shell of the air pump (8).

9. A rubber sealing ring performance detection device according to claim 8, characterized in that: A bushing tube (43) is rotatably connected in the air inlet pipe (37), a limiting arc plate (44) is fixedly connected to the bushing tube (43), the limiting arc plate (44) matches the upper feed pipe (38), a vertical side groove is provided at one end of the bushing tube (43) away from the limiting arc plate (44), a transverse rod (45) is fixedly connected in the limiting arc plate (44), and a gradual 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: A rubber sealing ring performance detection device according to any one of claims 1 to 9 is used, comprising the following steps: S1. When in use, first, the control power supply is connected to the electric telescopic rod (3), and the upper adjustment structure and the lower adjustment structure are operated in linkage through the operation of the electric telescopic rod (3), and then the relative distance between the upper adjustment pressure frame (4) and the lower support bracket (5) is adjusted, and the relative distance between the upper adjustment pressure frame (4) and the lower support bracket (5) is controlled to increase, so that the distance between the upper adjustment pressure frame (4) and the lower support bracket (5) can meet the placement of the rubber sealing ring; S2, placing a rubber sealing ring on the lower support bracket (5), and operating the electric telescopic rod (3) to realize the relative distance between the upper adjustment pressure frame (4) and the lower support bracket (5) to be close, until the gap between the upper adjustment pressure frame (4) and the lower support bracket (5) can form contact and compression with the rubber sealing ring, that is, the space between the upper adjustment 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, starting the air pump (8), pumping compressed gas into the central hole (10) through the operation of the air pump (8), and adding dye to the pumped compressed gas, so that the compressed gas enters the internal closed space through the central hole (10), and the compressed gas entering the internal closed space will fill the internal closed space, and the space filled with 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 pressure frame (4) and the lower supporting bracket (5), respectively, the gas leaking out of the leaking point will also form dye filling. After the air pump (8) operates to pump compressed air of a constant pressure into the internal closed space, the air pump (8) enters a stationary state, and after the pressure in the internal closed space is reduced, the air pump (8) can operate in real time to achieve gas replenishment; S5, the first servo motor (9) is powered on to realize the rotation drive of the ring frame (6), and finally the camera (7) is formed to move in a circular motion relative to the rubber sealing ring, and the image of the surrounding of the rubber sealing ring is formed to be covered and collected. The sealing performance of the rubber sealing ring is judged according to the dye staining in the collected image, and the area of ​​the rubber sealing ring where air is leaking is accurately judged.

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