Silicone oil injection amount verification device of leakage-free viscous damper and use method of silicone oil injection amount verification device

Abstract

The invention belongs to the technical field of silicone oil injection amount verification, and relates to a silicone oil injection amount verification device of a leakage-free viscous damper and a using method, and the silicone oil injection amount verification device comprises a pretreatment and purification treatment detection module used for monitoring the PH value of circulating fluid in real time, achieving the impurity removal rate through a three-stage filter element and constructing a water quality safety evaluation model, and an injection monitoring module, the volume conversion module is used for collecting water injection rate data in real time through an electromagnetic flowmeter and constructing a volume conversion model in combination with a density ratio formula, and the leakage detection module is used for integrating a visual recognition system and a pressure attenuation algorithm and constructing a dual-channel leakage judgment model. The overflow track is captured in real time through the visual recognition mode of the leakage detection module, the water pressure in the damper cavity is detected in real time in cooperation with pressure attenuation, double-channel complementary detection is achieved, the confidence coefficient of judging whether the damper leaks liquid or not is improved, and meanwhile the leakage detection accuracy is improved through the hot air flow speed and the temperature gradient. Therefore, comprehensive detection of gas-liquid leakage of the damper is realized.

Description

Technical Field

[0001] The invention belongs to the technical field of silicone oil injection amount verification, and relates to a silicone oil injection amount verification device for a leakage-free viscous damper and a use method thereof. Background Art

[0002] A leakage-free viscous damper is a viscous damping device that achieves long-term stable operation by optimizing the sealing structure and damping medium packaging technology. Its core function is to ensure that the damping medium does not leak while dissipating the structural vibration energy.

[0003] The current silicone oil injection process for dampers faces a series of technical challenges and shortcomings, which directly impact the performance, service life, and ease of maintenance of the damper. First, during the silicone oil injection process, a certain amount of impurities are inevitably introduced into the damper due to environmental, equipment, or operational factors. These impurities not only reduce the purity of the silicone oil but can also cause wear, blockage, and other faults during operation, seriously affecting the stability and reliability of the damper. Second, precise control of the silicone oil injection volume is a technical difficulty. Currently, due to the lack of effective monitoring methods, operators often struggle to accurately determine the proper amount of silicone oil to be injected into the damper. Injecting too much silicone oil can lead to excessive internal pressure, affecting normal operation, while injecting too little can fail to provide the desired damping effect, reducing equipment performance. Furthermore, before injecting silicone oil, it is difficult to determine whether the damper is leaking. By the time the silicone oil injection is complete and a leak is discovered, the silicone oil has already seeped into the damper, making it difficult to remove and potentially severely impacting the normal operation and performance of the damper.

[0004] Therefore, there is an urgent need to develop a new damper silicone oil injection process and related equipment to solve these technical problems and improve the overall performance and reliability of the damper after oil injection. Summary of the Invention

[0005] The technical problem to be solved by the present invention is that the current silicone oil injection process for dampers has a series of technical challenges and shortcomings, which directly affect the performance, service life and maintenance ease of the damper. First, during the silicone oil injection process, a certain amount of impurities will inevitably be mixed into the damper due to environmental, equipment or operational factors. These impurities not only reduce the purity of the silicone oil, but also may cause wear, blockage and other faults during the operation of the damper, seriously affecting the stability and reliability of the damper. Secondly, precise control of the silicone oil injection volume is a technical difficulty. Currently, due to the lack of effective monitoring methods, operators often find it difficult to accurately determine the silicone oil injection volume when injecting silicone oil into the damper. Injecting too much silicone oil may cause excessive internal pressure in the damper, affecting normal operation, while injecting too little may not achieve the desired damping effect, reducing equipment performance. Furthermore, before injecting silicone oil into the damper, it is difficult to determine whether the damper is leaking. When the silicone oil injection is completed and a leak is discovered, the silicone oil has already penetrated the damper, making it not only difficult to remove, but also potentially seriously affecting the normal operation and performance of the damper.

[0006] The present invention provides a device and method for verifying the amount of silicone oil injected into a non-leakage viscous damper, including: The pre-treatment and purification detection module is used to monitor the pH value of the circulating fluid in real time, achieve impurity removal rate through the three-stage filter element, and build a water quality safety assessment model; The injection monitoring module is used to collect real-time water injection data through an electromagnetic flow meter and build a volume conversion model based on the density ratio formula; Leak detection module, which integrates the visual recognition system with the pressure decay algorithm to build a dual-channel leak determination model; The residual liquid treatment module is used to perform two-stage extraction operations, using S-shaped flow rate curve control and gradient hot air drying to achieve residual humidity; The oil film pre-injection module is used to inject a reference amount of oil under vacuum conditions, verify the oil film coverage through a contact angle meter, and form a uniform lubrication interface; The vacuum processing module is used to establish a multi-stage vacuum system, and construct a dynamic vacuum compensation algorithm through the three-stage cascade control of the rotary vane pump, Roots pump, and molecular pump; Closed-loop oil injection module is used to implement pressure gradient control, with an initial pressure of 1.0 MPa and a final pressure of 0.1 MPa.

[0007] The values ​​detected by the injection monitoring module include the water injection volume, the air pressure volume and the difference therebetween; the values ​​detected by the oil film pre-injection module include at least the pressure and flow rate of the oil injection port of the verification device and the oil film coverage rate; the data monitored by the closed-loop oil injection module include at least the conversion difference between the above-mentioned water injection volume, air pressure volume and oil film coverage rate; the injection quantity verification device includes a verification body.

[0008] The injection volume verification device includes a verification body, a support frame is fixedly connected to the verification body, a track is symmetrically fixed to one end of the verification body, a slide is slidably connected to the track, a detection platform is fixed to the slide, a servo motor is installed between the slide and the detection platform, a splint is slidably connected to both ends of the detection platform, an adjustment rod connected to the output end of the servo motor is rotatably connected in the middle of the detection platform, both ends of the adjustment rod are rotatably connected to a rotating rod, and the end of the rotating rod away from the adjustment rod is rotatably connected to the splint.

[0009] A placement rack is fixedly connected to one end of the track close to the verification body, a slot is provided on the placement rack away from the end, a grip rod is clamped inside the slot, a first multi-way valve is fixedly connected to the end of the grip rod away from the slot, a second multi-way valve is connected to the outer wall of the first multi-way valve, a rotary joint is provided at one end of the first multi-way valve and the second multi-way valve, and a solenoid valve is installed on each port of the first multi-way valve and the second multi-way valve.

[0010] A group of ports of the first multi-way valve are connected to a water injection pipe, and a water injection pump and a purified water tank are installed on the verification body. The interior of the purified water tank is connected to the end of the water injection pipe away from the first multi-way valve, the middle part of the water injection pipe is connected to the water injection pump, and a turbine is installed inside the end of the water injection pipe close to the first multi-way valve.

[0011] A group of ports of the first multi-way valve are connected to a water pump, and a water pump and a sewage tank are installed on the verification body. The interior of the sewage tank is connected to an end of the water pump away from the first multi-way valve, the middle part of the water pump is connected to the water pump, and a filter plate is installed at the top of the interior of the sewage tank.

[0012] A group of ports of the first multi-way valve are connected to a hot air pipe, a hot air blower is installed on the support frame, and the end of the hot air pipe away from the first multi-way valve is connected to the hot air blower. A group of ports of the second multi-way valve are connected to an exhaust pipe, and a vacuum pump is installed on the verification body, and the vacuum pump is connected to the end of the exhaust pipe away from the second multi-way valve.

[0013] A group of ports of the second multi-way valve are connected to an oil pipeline, an oil pump and an oil filling tank are installed on the support frame, one end of the oil pipeline away from the second multi-way valve is connected to the oil filling tank, and the middle part of the oil pipeline is connected to the oil pump.

[0014] A group of ports of the second multi-way valve are connected to an oil pumping pipe, an oil pump and an oil collecting tank are installed on the support frame, one end of the oil pumping pipe away from the second multi-way valve is connected to the oil collecting tank, and the middle part of the oil pumping pipe is connected to the oil pump.

[0015] A threaded barrel is fixedly connected to the edge of one end of the slide plate, a screw rod is threadedly connected inside the threaded barrel, and one end of the screw rod passes through the interior of the slide plate and abuts against the track.

[0016] Compared with the existing technology, the beneficial effects of the present invention are: through the injection monitoring module, the purified water can be formed into a spiral water flow to flush the residue on the inner wall of the damper cavity, thereby improving the working efficiency and stability of the damper, and cooperating with the two-stage screw pump of the residual liquid treatment module to pump out the residual water, avoiding secondary pollution caused by turbulence.

[0017] The visual recognition mode of the leakage detection module captures the overflow trajectory in real time, and the water pressure in the damper cavity is detected in real time in conjunction with pressure decay, achieving dual-channel complementary detection. This improves the confidence level in determining whether the damper is leaking. At the same time, the hot air flow rate and temperature gradient are used to achieve comprehensive detection of gas and liquid leaks in the damper.

[0018] By utilizing the stability of purified water, interference with flow sensors and pressure sensors by the medium itself can be avoided, ensuring injection volume detection errors and preventing purified water residues from corroding sealing components or affecting the performance of subsequent working media. At the same time, purified water is only 1 / 5-1 / 10 of the volume of dedicated test liquid and can be recycled and filtered for use, reducing testing costs. Through the volume conversion model, vacuum dynamic compensation algorithm and the conversion difference of oil film coverage, the amount of silicone oil that needs to be injected into the damper can be accurately measured, making it convenient for precise injection of silicone oil. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic structural diagram of the present invention as a whole.

[0020] Figure 2 It is a schematic diagram of the oil collecting tank in the present invention.

[0021] Figure 3 It is a schematic diagram of removing the track in the present invention.

[0022] Figure 4 It is a structural schematic diagram of the adjusting rod and the rotating rod in the present invention.

[0023] Figure 5 It is a structural schematic diagram of the first multi-way valve and the second multi-way valve in the present invention.

[0024] Figure 6 It is a structural schematic diagram of the water injection pipe in the present invention.

[0025] Figure 7 It is a schematic structural diagram of the turbine in the present invention.

[0026] Figure 8 This is a schematic diagram of the structure of the filter plate in the present invention In the figure: 1. Verification body; 2. Support frame; 3. Track; 4. Slide plate; 5. First multi-way valve; 6. Second multi-way valve; 7. Rotary joint; 8. Testing table; 9. Clamp; 10. Servo motor; 11. Adjusting rod; 12. Rotating rod; 13. Solenoid valve; 14. Water injection pipe; 15. Water injection pump; 16. Purified water tank; 17. Water extraction pipe; 18. Water extraction pump; 19. Sewage tank; 20. Filter plate; 21. Turbine; 22. Hot air pipe; 23. Hot air blower; 24. Exhaust pipe; 25. Vacuum pump; 26. Oil pipeline; 27. Oil extraction pump; 28. Oil injection tank; 29. ​​Oil extraction pipe; 30. Oil extraction pump; 31. Oil collecting tank; 32. Grip; 33. Placement rack; 34. Slot; 35. Threaded barrel; 36. Screw. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0028] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features and technical solutions therein may be combined with each other.

[0029] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further defined or explained in subsequent drawings. Example

[0030] like Figures 1 to 8 As shown, a device and method for verifying the amount of silicone oil injected into a non-leakage viscous damper include: The pre-treatment, purification and detection module is used to monitor the pH value of the circulating fluid in real time, achieve impurity removal rate through a three-stage filter element, and build a water quality safety assessment model. By configuring a pH sensor with a range of 0-14 and an accuracy of ±0.1, the pH value of the circulating fluid is monitored in real time and the data is uploaded to the PLC system. The three-stage filter element is a 50μm stainless steel filter, an activated carbon adsorption layer TOC, and a 1μm reverse osmosis membrane, which can achieve a comprehensive impurity removal rate of ≥98.5%. At the same time, a water quality safety assessment model is built based on conductivity ≤5μS / cm, pH fluctuation ±0.3 and TOC residual ≤1ppm, and the output purification index threshold is ≤1.0. The injection monitoring module is used to collect water injection volume data in real time through an electromagnetic flowmeter, and build a volume conversion model based on the density ratio formula. A 0.5-level electromagnetic flowmeter with a range of 0-10L / s is used to collect water injection volume data in real time. The sampling frequency is 10Hz. At the same time, a centrifugal pump injects purified water at a flow rate of 3.5L / s, driving the 45° turbine 21. At the same time, the centrifugal pump injects purified water and drives the 45° turbine 21 to form a spiral water flow to flush the residue on the inner wall. Based on the density ratio formula: Voil=Vwater×ρoilρwater×(1−ε), a volume conversion model is generated with an error of ≤±0.3%. ‌‌ The leak detection module is used to integrate the visual recognition system and the pressure decay algorithm to build a dual-channel leak judgment model. It uses an integrated 360-degree circular industrial camera to capture the leak trajectory. The image algorithm generates a thermal map with a positioning accuracy of ±2mm. The pressure decay algorithm sets the threshold: under the water injection pressure of 1.0MPa, a pressure drop of more than 0.02MPa within 10 minutes triggers an alarm. The confidence level of the dual-channel judgment is ≥99%. The residual liquid treatment module is used to perform two-stage extraction operations, adopts S-shaped flow rate curve control, and cooperates with gradient hot air drying to achieve residual humidity. A two-stage screw pump is used to perform extraction operations, and the flow rate is controlled according to the S-shaped flow rate curve. The vacuum degree is -90kPa, and the gradient hot air drying is divided into three stages: 40℃ / 12m / s→60℃ / 8m / s→80℃ / pulse mode. The end humidity is ≤3%RH, and the infrared sensor accuracy is ±0.5%RH.

[0031] At the same time, a heat conduction model of the leakage point is established based on the hot air flow rate and temperature gradient. If an abnormal drop in local temperature is detected, it is determined to be heat loss caused by gas leakage.

[0032] The vacuum processing module is used to establish a multi-stage vacuum system. Through the three-stage cascade control of the rotary vane pump, Roots pump, and molecular pump, a dynamic vacuum compensation algorithm is constructed. The rotary vane pump initially pumps to 5kPa, the Roots pump finely pumps to 1kPa, and the molecular pump finally pumps to 0.5kPa. The fluctuation compensation algorithm response time is ≤0.5s.

[0033] Vacuum degree dynamic compensation formula: Padj=Pset+Kp×(Pact−Pset). The oil film pre-injection module is used to inject 5% of the reference oil volume under vacuum conditions. The contact angle meter verifies that the oil film coverage is ≥98%, forming a uniform lubrication interface. The module injects 5% of the reference oil volume under vacuum conditions ≤0.5kPa, allowing the oil film to stand for 10 minutes. The contact angle meter verifies that the oil film coverage is ≥98% and that a contact angle of ≤25° is accurate to ±1°, indicating a uniform lubrication interface. The closed-loop oil injection module is used to implement pressure gradient control. The initial stage is 1.0MPa, and the final pressure stage is switched to 0.1MPa. The initial oil injection pressure is 1.0MPa, and the final pressure stage is switched to 0.1MPa. The pressure gradient control algorithm adopts PID adjustment, the overshoot is ≤1%, and the steady-state error is ≤±0.05MPa.

[0034] The values ​​detected by the injection monitoring module include the water injection volume, the air pressure volume and the difference therebetween; the values ​​detected by the oil film pre-injection module include at least the pressure and flow rate of the oil injection port of the verification device and the oil film coverage rate; the data monitored by the closed-loop oil injection module include at least the conversion difference between the above-mentioned water injection volume, air pressure volume and oil film coverage rate; the injection quantity verification device includes a verification body 1.

[0035] In summary, the injection monitoring module can form a spiral water flow of purified water to flush the residue on the inner wall of the damper cavity, improve the working efficiency and stability of the damper, and cooperate with the two-stage screw pump of the residual liquid treatment module to pump out the residual water to avoid secondary pollution caused by turbulence.

[0036] The visual recognition mode of the leakage detection module captures the overflow trajectory in real time, and the water pressure in the damper cavity is detected in real time in conjunction with pressure decay, achieving dual-channel complementary detection. This improves the confidence level in determining whether the damper is leaking. At the same time, the hot air flow rate and temperature gradient are used to achieve comprehensive detection of gas and liquid leaks in the damper.

[0037] By utilizing the stability of purified water, interference with flow sensors and pressure sensors by the medium itself can be avoided, ensuring injection volume detection errors and preventing purified water residues from corroding sealing components or affecting the performance of subsequent working media. At the same time, purified water is only 1 / 5-1 / 10 of the volume of dedicated test liquid and can be recycled and filtered for use, reducing testing costs. Through the volume conversion model, vacuum dynamic compensation algorithm and the conversion difference of oil film coverage, the amount of silicone oil that needs to be injected into the damper can be accurately measured, making it convenient for precise injection of silicone oil. Example

[0038] like Figures 1 to 4 As shown, the injection volume verification device includes a verification body 1, a support frame 2 is fixedly connected to the verification body 1, a track 3 is symmetrically fixed to one end of the verification body 1, a slide 4 is slidably connected to the track 3, a detection platform 8 is fixed to the slide 4, a servo motor 10 is installed between the slide 4 and the detection platform 8, a splint 9 is slidably connected to both ends of the detection platform 8, an adjusting rod 11 connected to the output end of the servo motor 10 is rotatably connected in the middle of the detection platform 8, and a rotating rod 12 is rotatably connected to both ends of the adjusting rod 11, and the end of the rotating rod 12 away from the adjusting rod 11 is rotatably connected to the splint 9.

[0039] During operation, by placing the detection damper between the two groups of splints 9 and rotating the output end of the servo motor 10 in the forward direction, the two ends of the adjusting rod 11 can be driven to drive the two groups of rotating rods 12 to swing and move, so that the two groups of splints 9 are close to each other, and the detection damper is quickly clamped and fixed. The distance between the two groups of splints 9 can be flexibly adjusted by the servo motor 10, so as to facilitate the fixation of dampers of different specifications, further improving the applicability of the device.

[0040] like Figures 1 to 6 As shown, a placement rack 33 is fixedly connected to one end of the track 3 close to the verification body 1, a card slot 34 is provided at the other end of the placement rack 33, a gripping rod 32 is clamped inside the card slot 34, and a first multi-way valve 5 is fixedly connected to the end of the gripping rod 32 away from the card slot 34, and a second multi-way valve 6 is connected to the outer wall of the first multi-way valve 5. A rotary joint 7 is provided at one end of the first multi-way valve 5 and the second multi-way valve 6, and a solenoid valve 13 is installed at each port of the first multi-way valve 5 and the second multi-way valve 6.

[0041] During operation, the handle 32 can be quickly removed from the mounting bracket 33 by holding the handle 32, and the plug of the damper liquid inlet port is removed and the rotary joint 7 on the first multi-way valve 5 is rotated to connect it with the damper liquid inlet port.

[0042] like Figures 1 to 7 As shown, a group of ports of the first multi-way valve 5 are connected to a water injection pipe 14, and a water injection pump 15 and a purified water tank 16 are installed on the verification body 1. The interior of the purified water tank 16 is connected to the end of the water injection pipe 14 away from the first multi-way valve 5, the middle part of the water injection pipe 14 is connected to the water injection pump 15, and a turbine 21 is installed inside the end of the water injection pipe 14 close to the first multi-way valve 5.

[0043] During operation, the water injection pump 15 is started to fill the water injection pipe 14 with liquid, and then the solenoid valve 13 connected to the port of the water injection pipe 14 is opened. At this time, the liquid enters the damper through the water injection pipe 14, flushes the inside of the damper, and measures its internal volume and whether there is leakage to determine.

[0044] like Figures 1 to 7 As shown, a group of ports of the first multi-way valve 5 are connected to a water pump 17, and a water pump 18 and a sewage tank 19 are installed on the verification body 1. The interior of the sewage tank 19 is connected to the end of the water pump 17 away from the first multi-way valve 5, the middle part of the water pump 17 is connected to the water pump 18, and a filter plate 20 is installed at the top of the sewage tank 19.

[0045] During operation, the solenoid valve 13 connected to the water injection pipe 14 is closed, and the solenoid valve 13 connected to the water extraction pipe 17 is opened, and then the water extraction pump 18 is started to extract the liquid inside the damper and pump it into the sewage tank 19, and the sewage is filtered through the filter plate 20.

[0046] like Figures 1 to 7 As shown, a group of ports of the first multi-way valve 5 is connected to a hot air pipe 22, a hot air blower 23 is installed on the support frame 2, and the end of the hot air pipe 22 away from the first multi-way valve 5 is connected to the hot air blower 23, a group of ports of the second multi-way valve 6 is connected to an exhaust pipe 24, and a vacuum pump 25 is installed on the verification body 1, and the vacuum pump 25 is connected to the end of the exhaust pipe 24 away from the second multi-way valve 6.

[0047] During operation, the solenoid valve 13 at the port connected to the water pump 17 is closed, and the solenoid valve 13 at the port connected to the hot air pipe 22 is opened, and then the hot air blower 23 is started to dry the liquid remaining on the inner wall of the damper. After drying, the solenoid valve 13 is closed, and the first multi-way valve 5 is disconnected from the liquid inlet port of the damper, and then the second multi-way valve 6 is connected to the liquid inlet port of the damper through the rotary joint 7.

[0048] like Figures 1 to 7 As shown, a group of ports of the second multi-way valve 6 are connected to an oil pipe 26, an oil pump 27 and an oil filling tank 28 are installed on the support frame 2, the end of the oil pipe 26 away from the second multi-way valve 6 is connected to the oil filling tank 28, and the middle part of the oil pipe 26 is connected to the oil pump 27.

[0049] like Figures 1 to 7 As shown, a group of ports of the second multi-way valve 6 are connected to an oil extraction pipe 29, an oil extraction pump 30 and an oil collecting tank 31 are installed on the support frame 2, one end of the oil extraction pipe 29 away from the second multi-way valve 6 is connected to the oil collecting tank 31, and the middle part of the oil extraction pipe 29 is connected to the oil extraction pump 30.

[0050] During operation, the solenoid valve 13 at the port connected to the oil pipe 26 is opened, and then the oil pump 27 is opened to inject a reference amount of oil into the damper, so that an oil film is formed inside the cavity. Then the solenoid valve 13 at the port connected to the oil pipe 26 is closed, and the solenoid valve 13 at the port connected to the oil extraction pipe 29 is opened, and the oil extraction pump 30 is opened to draw the silicone oil remaining in the cavity into the oil collecting tank 31. Then the solenoid valve 13 is closed, and the solenoid valve 13 at the port connected to the air extraction pipe 24 is opened, and the vacuum pump 25 is opened to extract the air inside the damper. After the vacuum extraction is completed, the solenoid valve 13 is closed, and the solenoid valve 13 at the port connected to the oil pipe 26 and the oil pump 27 are opened to inject oil into the damper.

[0051] like Figure 1 Figure 7 As shown, a threaded barrel 35 is fixed to the edge of one end of the slide 4 , a screw rod 36 is threadedly connected inside the threaded barrel 35 , and one end of the screw rod 36 passes through the interior of the slide 4 and abuts against the track 3 .

[0052] During operation, by rotating the screw 36 so that one end of the screw 36 moves away from the track 3, the distance between the slide 4 and the first multi-way valve 5 and the second multi-way valve 6 can be adjusted. Conversely, by rotating the screw 36 so that one end of the screw 36 moves closer to the track 3, the slide 4 and the track 3 can be fixed.

[0053] like Figures 1 to 8 As shown, a method for using a device for verifying the amount of silicone oil injected into a non-leakage viscous damper mainly comprises the following steps: S1: First, the servo motor 10, the adjustment rod 11 and the two sets of rotating rods 12 drive the two sets of clamps 9 to clamp and fix the detection damper, and then the rotary joint 7 is used to connect one end of the first multi-way valve 5 to the liquid inlet port of the damper for installation. After the installation is completed, the pH value of the fluid medium in the purified water tank 16 is monitored in real time through the pre-treatment purification detection module, and the impurities are removed at a high rate in conjunction with the three-stage filter element.

[0054] S2: After the liquid is filled into the water injection pipe 14 through the injection monitoring module, the solenoid valve 13 at the port connected to the water injection pipe 14 is controlled to open, so that the liquid enters the damper through the water injection pipe 14. At the same time, the water injection volume data is collected in real time through the electromagnetic flowmeter, and a volume conversion model is constructed in combination with the density ratio formula. During this process, the 45° turbine 21 is driven to form a spiral water flow of purified water to flush the residue on the inner wall of the damper cavity. At the same time, the overflow trajectory is captured in real time through the visual recognition mode of the leakage detection module, and the water pressure in the damper cavity is detected in real time in conjunction with the pressure decay, achieving dual-channel complementary detection.

[0055] S3: After completing the damper leakage detection and volume conversion, close the solenoid valve 13 at the port connected to the water injection pipe 14, and control the opening of the solenoid valve 13 at the port connected to the water extraction pipe 17 through the residual liquid processing module. After the liquid inside the damper is pumped into the sewage tank 19, control the solenoid valve 13 to close, and open the solenoid valve 13 at the port connected to the hot air pipe 22 to perform gradient hot air drying on the liquid remaining on the inner wall of the damper. At the same time, establish a heat conduction model of the leakage point based on the hot air flow rate and temperature gradient. If an abnormal drop in local temperature is detected, it is determined to be heat loss caused by gas leakage. After completing the drying process inside the damper, close the solenoid valve 13.

[0056] S4: Then, the first multi-way valve 5 is disconnected from the damper liquid inlet port, and the second multi-way valve 6 is connected to the damper liquid inlet port through the rotary joint 7. The solenoid valve 13 connected to the port of the oil pipe 26 is opened by the oil film pre-injection module, and 5% of the reference oil volume is injected into the damper. The oil film coverage is verified by the contact angle meter. When the oil film coverage meets the standard, the solenoid valve 13 is closed, and the solenoid valve 13 connected to the port of the oil extraction pipe 29 is opened through the closed-loop oil injection module. The silicone oil remaining in the damper cavity is pumped into the oil collecting tank 31, and a conversion difference model of the oil film coverage is constructed, and then the solenoid valve 13 is closed.

[0057] S5: Open the solenoid valve 13 connected to the oil extraction pipe 29 and the oil extraction pump 30 to extract the silicone oil remaining in the cavity into the oil collecting tank 31. Then close the solenoid valve 13 and control the vacuum processing module to open the solenoid valve 13 connected to the air extraction pipe 24 to extract the air inside the damper. At the same time, a dynamic compensation algorithm for vacuum degree is constructed.

[0058] S5: After calculating the amount of silicone oil that needs to be injected into the damper through the volume conversion model, vacuum dynamic compensation algorithm and oil film coverage conversion difference, the solenoid valve 13 connected to the port of the oil pipe 26 is controlled to open through the closed-loop oil injection module to perform oil injection operation on the damper.

[0059] The description of the direction and relative position relationship of the structure in the present invention, such as the description of front, back, left, right, up and down, does not constitute a limitation of the present invention and is only for the convenience of description.

Claims

1. A device for verifying the amount of silicone oil injected into a leak-free viscous damper, characterized by: include: The pre-treatment and purification detection module is used to monitor the pH value of the circulating fluid in real time, achieve impurity removal rate through the three-stage filter element, and build a water quality safety assessment model; The injection monitoring module is used to collect real-time water injection data through an electromagnetic flow meter and build a volume conversion model based on the density ratio formula; Leak detection module, which integrates the visual recognition system with the pressure decay algorithm to build a dual-channel leak determination model; The residual liquid treatment module is used to perform two-stage extraction operations, using S-shaped flow rate curve control and gradient hot air drying to achieve residual humidity; The oil film pre-injection module is used to inject a reference amount of oil under vacuum conditions, verify the oil film coverage through a contact angle meter, and form a uniform lubrication interface; The vacuum processing module is used to establish a multi-stage vacuum system, and construct a dynamic vacuum compensation algorithm through the three-stage cascade control of the rotary vane pump, Roots pump, and molecular pump; Closed-loop oil injection module is used to implement pressure gradient control, with an initial pressure of 1.0 MPa and a final pressure of 0.1 MPa.

2. The device for verifying the amount of silicone oil injected into a non-leakage viscous damper according to claim 1, characterized in that: The values ​​detected by the injection monitoring module include the water injection volume, the air pressure volume and the difference therebetween; the values ​​detected by the oil film pre-injection module include at least the pressure and flow rate of the oil injection port of the verification device and the oil film coverage rate; the data monitored by the closed-loop oil injection module include at least the conversion difference between the water injection volume, the air pressure volume and the oil film coverage rate; and the injection volume verification device includes a verification body (1).

3. The device for verifying the amount of silicone oil injected into a non-leakage viscous damper according to claim 2, characterized in that: The injection volume verification device comprises a verification body (1), a support frame (2) is fixedly connected to the verification body (1), a track (3) is symmetrically fixedly connected to one end of the verification body (1), a slide (4) is slidably connected to the track (3), a detection platform (8) is fixedly connected to the slide (4), a servo motor (10) is installed between the slide (4) and the detection platform (8), a clamping plate (9) is slidably connected to both ends of the detection platform (8), an adjustment rod (11) connected to the output end of the servo motor (10) is rotatably connected in the middle of the detection platform (8), both ends of the adjustment rod (11) are rotatably connected to a rotating rod (12), and the end of the rotating rod (12) away from the adjustment rod (11) is rotatably connected to the clamping plate (9).

4. The device for verifying the amount of silicone oil injected into a non-leakage viscous damper according to claim 3, characterized in that: A placement rack (33) is fixedly connected to one end of the track (3) close to the verification body (1), a slot (34) is provided at one end of the placement rack (33) away from the other end, a gripping rod (32) is clamped inside the slot (34), a first multi-way valve (5) is fixedly connected to one end of the gripping rod (32) away from the slot (34), a second multi-way valve (6) is connected to the outer wall of the first multi-way valve (5), a rotary joint (7) is provided at one end of each of the first multi-way valve (5) and the second multi-way valve (6), and a solenoid valve (13) is installed at each port of the first multi-way valve (5) and the second multi-way valve (6).

5. The device for verifying the amount of silicone oil injected into a non-leakage viscous damper according to claim 4, characterized in that: A group of ports of the first multi-way valve (5) is connected to a water injection pipe (14), and a water injection pump (15) and a purified water tank (16) are installed on the verification body (1). The interior of the purified water tank (16) is connected to an end of the water injection pipe (14) away from the first multi-way valve (5), and the middle of the water injection pipe (14) is connected to the water injection pump (15). A turbine (21) is installed inside the end of the water injection pipe (14) close to the first multi-way valve (5).

6. The device for verifying the amount of silicone oil injected into a non-leakage viscous damper according to claim 5, characterized in that: A group of ports of the first multi-way valve (5) is connected to a water pump (17), and a water pump (18) and a sewage tank (19) are installed on the verification body (1). The interior of the sewage tank (19) is connected to an end of the water pump (17) away from the first multi-way valve (5), and the middle of the water pump (17) is connected to the water pump (18). A filter plate (20) is installed at the top end of the sewage tank (19).

7. The device for verifying the amount of silicone oil injected into a non-leakage viscous damper according to claim 6, characterized in that: A group of ports of the first multi-way valve (5) is connected to a hot air pipe (22), a hot air blower (23) is installed on the support frame (2), and the end of the hot air pipe (22) away from the first multi-way valve (5) is connected to the hot air blower (23), a group of ports of the second multi-way valve (6) is connected to an exhaust pipe (24), a vacuum pump (25) is installed on the verification body (1), and the vacuum pump (25) is connected to the end of the exhaust pipe (24) away from the second multi-way valve (6).

8. The device for verifying the amount of silicone oil injected into a non-leakage viscous damper according to claim 7, characterized in that: A group of ports of the second multi-way valve (6) are connected to an oil delivery pipe (26), an oil delivery pump (27) and an oil filling tank (28) are installed on the support frame (2), one end of the oil delivery pipe (26) away from the second multi-way valve (6) is connected to the oil filling tank (28), and the middle part of the oil delivery pipe (26) is connected to the oil delivery pump (27).

9. The device for verifying the amount of silicone oil injected into a non-leakage viscous damper according to claim 8, characterized in that: A group of ports of the second multi-way valve (6) is connected to an oil pumping pipe (29), an oil pumping machine (30) and an oil collecting tank (31) are installed on the support frame (2), one end of the oil pumping pipe (29) away from the second multi-way valve (6) is connected to the oil collecting tank (31), and the middle part of the oil pumping pipe (29) is connected to the oil pumping machine (30).

10. The device for verifying the amount of silicone oil injected into a non-leakage viscous damper according to claim 3, characterized in that: A threaded barrel (35) is fixedly connected to the edge of one end of the slide plate (4), a screw rod (36) is threadedly connected inside the threaded barrel (35), and one end of the screw rod (36) passes through the interior of the slide plate (4) and abuts against the track (3).

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