Leak-proof lubricating oil quantitative filling device
By using the timing control of solenoid valves and pneumatic valves and a micro-pump negative pressure recovery system, combined with a spring pressure plate mechanism to fix the container, the leakage and stability problems of the lubricating oil filling device are solved, achieving three-level leakage prevention and container fixation, and improving the stability and adaptability of the filling process.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JIANGSU DAOMA IND TECH CO LTD
- Filing Date
- 2025-06-23
- Publication Date
- 2026-06-05
AI Technical Summary
Existing lubricating oil filling equipment suffers from leakage due to valves not closing in time, contaminating the equipment and working environment, and cannot secure containers, resulting in an unstable filling process.
The system employs a combination of timing control of solenoid valves and pneumatic valves, along with negative pressure recovery from a micro pump, and a spring pressure plate mechanism to secure the container, forming a three-level leak-proof system. The system also uses a visual sensor to detect the container's position.
It achieves three-level leak prevention during the lubricating oil filling process, ensuring filling stability and adaptability, reducing foam generation, and improving the stability and adaptability of the filling process.
Smart Images
Figure CN224325145U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of lubricating oil production technology, and specifically discloses a leak-proof lubricating oil quantitative filling device. Background Technology
[0002] Lubricating oil is a liquid used in various types of automobiles and mechanical equipment to reduce friction and protect machinery and processed parts. It mainly plays the roles of lubrication, auxiliary cooling, rust prevention, cleaning, sealing and buffering. In the production process of lubricating oil, it is necessary to fill it.
[0003] Existing filling devices suffer from leaks due to valves not closing in time during the filling process, which contaminates the equipment and the working environment. Furthermore, the containers cannot be secured during the filling process, making them prone to tipping over. Therefore, a leak-proof lubricating oil metering filling device is needed to solve this problem. Utility Model Content
[0004] This invention proposes a leak-proof lubricating oil quantitative filling device. It achieves three-level leak prevention by using the timing control of electromagnetic valves and pneumatic valves in conjunction with the negative pressure recovery of a micro pump. At the same time, a spring pressure plate mechanism is used to fix the container, which solves the problems of dripping and stability during the lubricating oil filling process.
[0005] This utility model is implemented as follows: a leak-proof lubricating oil quantitative filling device includes an oil storage tank, a conveyor belt disposed below the oil storage tank, a discharge pipe disposed at the lower end of the oil storage tank, a filling mechanism disposed at the lower end of the discharge pipe, the filling mechanism including a first filling pipe connected to the lower end of the discharge pipe, an electromagnetic flow meter and a solenoid valve disposed on the outer wall of the first filling pipe, a second filling pipe disposed below the first filling pipe, a filling nozzle disposed at the lower end of the second filling pipe, a pneumatic shut-off valve disposed on the outer wall of the second filling pipe, a buffer chamber connected between the first filling pipe and the second filling pipe, a micro pump disposed on the outer wall of the buffer chamber, the input end of the micro pump connected to the buffer chamber, the output end of the micro pump connected to a recovery pipe, and the other end of the recovery pipe connected to the oil storage tank.
[0006] In a preferred embodiment of the leak-proof lubricating oil quantitative filling device of this utility model, a fixing plate is fixedly connected to the outer wall of the second filling tube, a pressure plate is provided below the fixing plate, two sliding rods that are slidably connected to the upper end face of the pressure plate are fixedly connected, a limit nut is fixedly connected to the upper end of each of the two sliding rods, and a spring located between the fixing plate and the pressure plate is sleeved on the outer wall of each of the two sliding rods.
[0007] As a preferred embodiment of the leak-proof lubricating oil quantitative filling device of this utility model, a vision sensor is provided on the lower end face of the pressure plate.
[0008] As a preferred embodiment of the leak-proof lubricating oil quantitative filling device of this utility model, a bracket is fixedly connected to the outer wall of the oil storage tank, and two symmetrically distributed electric push rods are installed on the lower end face of the bracket. A lifting plate is fixedly connected to the output end of the two electric push rods, and the first filling pipe is fixedly connected to the lifting plate.
[0009] As a preferred embodiment of the leak-proof lubricating oil quantitative filling device of this utility model, the discharge pipe is a corrugated hose.
[0010] As a preferred embodiment of the leak-proof lubricating oil quantitative filling device of this utility model, the outer wall of the bracket is equipped with a controller, and the conveyor belt, electromagnetic flow meter, electromagnetic valve, pneumatic shut-off valve, micro pump, vision sensor and electric push rod are all electrically connected to the controller.
[0011] The beneficial effects of this utility model are:
[0012] 1. Through the time-coordinated control of the solenoid valve and the pneumatic shut-off valve, combined with the micro pump negative pressure recovery system, a three-level leak prevention guarantee is formed: the main valve quickly shuts off to ensure timely flow cessation, the pneumatic valve delays closing to achieve a hard seal, and the micro pump sucks up and recovers residual oil.
[0013] 2. The spring buffer plate mechanism can adapt to containers of different heights, preventing containers from tipping over and reducing foam generation, thus greatly improving the stability and adaptability of the filling process. Attached Figure Description
[0014] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn to scale.
[0015] Figure 1 This is an overall structural diagram of a leak-proof lubricating oil quantitative filling device according to the present invention.
[0016] Figure 2 This utility model Figure 1 Enlarged view of point A in the middle.
[0017] Figure 3 This is a bottom view of the pressure plate of this utility model.
[0018] The markings in the diagram are: 1. Oil storage tank; 2. Support frame; 3. Conveyor belt; 4. Discharge pipe; 5. First filling pipe; 6. Second filling pipe; 7. Buffer chamber; 8. Electromagnetic flow meter; 9. Solenoid valve; 10. Pneumatic shut-off valve; 11. Micro pump; 12. Recovery pipe; 13. Fixing plate; 14. Pressure plate; 15. Slide rod; 16. Spring; 17. Vision sensor; 18. Electric actuator; 19. Lifting plate. Detailed Implementation
[0019] The present invention will be further described below with reference to the accompanying drawings and specific embodiments to aid in understanding its content. Unless otherwise specified, the methods used in this invention are conventional methods; the raw materials and apparatus used, unless otherwise specified, are conventional commercially available products.
[0020] Please see Figure 1-3 A leak-proof lubricating oil quantitative filling device includes an oil storage tank 1, a conveyor belt 3 below the oil storage tank 1, a discharge pipe 4 at the lower end of the oil storage tank 1, a filling mechanism at the lower end of the discharge pipe 4, a first filling pipe 5 connected to the lower end of the discharge pipe 4, an electromagnetic flow meter 8 and a solenoid valve 9 on the outer wall of the first filling pipe 5, a second filling pipe 6 located below the first filling pipe 5, a filling nozzle at the lower end of the second filling pipe 6, a pneumatic shut-off valve 10 on the outer wall of the second filling pipe 6, a buffer chamber 7 connecting the first filling pipe 5 and the second filling pipe 6, a micro pump 11 on the outer wall of the buffer chamber 7, an input end of the micro pump 11 connected to the buffer chamber 7, an output end of the micro pump 11 connected to a recovery pipe 12, and the other end of the recovery pipe 12 connected to the oil storage tank 1.
[0021] In this embodiment: During filling, the filling container is placed on the conveyor belt 3 and transported to the bottom of the filling nozzle by the conveyor belt 3. The filling volume is preset by the controller, and the solenoid valve 9 is opened. The lubricating oil raw material flows out through the discharge pipe 4, the first filling pipe 5, the electromagnetic flowmeter 8, the buffer chamber 7, the second filling pipe 6 and the filling nozzle. The electromagnetic flowmeter 8 feeds back data to the controller in real time. When the controller detects that the flow rate is close to the set value (the specific value needs to be set according to the filling volume), the controller controls the solenoid valve 9 to a half-open state. When the flow rate is about to reach the set value, the solenoid valve 9 is completely closed, the pneumatic shut-off valve 10 closes with a delay, and the micro pump 11 is started at the same time to pump the residual lubricating oil in the buffer chamber 7 and the second filling pipe 6 back to the oil storage tank 1 through the recovery pipe 12. This utility model achieves rapid opening and closing by using the solenoid valve 9 as the main control unit, the pneumatic shut-off valve 10 as a safety unit to completely cut off the pipeline, and recovers the residual lubricating oil through the micro pump 11, thus achieving three-level leakage prevention.
[0022] As a technical optimization of this utility model, a fixing plate 13 is fixedly connected to the outer wall of the second filling tube 6, and a pressure plate 14 is provided below the fixing plate 13. Two slide rods 15 that are slidably connected to the fixing plate 13 are fixedly connected to the upper end of the pressure plate 14. Limit nuts are fixedly connected to the upper ends of the two slide rods 15, and springs 16 located between the fixing plate 13 and the pressure plate 14 are sleeved on the outer wall of the two slide rods 15.
[0023] In this embodiment: when the fixing plate 13 moves downward, it drives the pressure plate 14 to move downward. When the pressure plate 14 contacts the container opening, the fixing plate 13 drives the filling nozzle to continue moving downward and extending into the container. At the same time, the spring 16 is compressed, and the container is fixed by the pressure plate 14 to prevent the container from tipping over during filling.
[0024] As a technical optimization of this utility model, a vision sensor 17 is provided on the lower end face of the pressure plate 14.
[0025] In this embodiment, the position of the filling container is easily detected by the vision sensor 17.
[0026] As a technical optimization of this utility model, a bracket 2 is fixedly connected to the outer wall of the oil storage tank 1. Two symmetrically distributed electric push rods 18 are installed on the lower end face of the bracket 2. A lifting plate 19 is fixedly connected to the output end of the two electric push rods 18. The first filling pipe 5 is fixedly connected to the lifting plate 19.
[0027] In this embodiment: the controller synchronously starts two electric push rods 18, which drive the lifting plate 19 to move downward, thereby driving the first filling tube 5 to move downward. The first filling tube 5 further drives the filling nozzle and the fixing plate 13 to move downward, so that the filling nozzle extends into the container for filling and prevents leakage.
[0028] As a technical optimization of this utility model, the discharge pipe 4 is a corrugated hose.
[0029] In this embodiment: by setting the discharge pipe 4 as a corrugated hose, it is easy for the filling nozzle to move up and down.
[0030] As a technical optimization of this utility model, a controller is provided on the outer wall of the bracket 2, and the conveyor belt 3, electromagnetic flow meter 8, solenoid valve 9, pneumatic shut-off valve 10, micro pump 11, vision sensor 17 and electric push rod 18 are all electrically connected to the controller.
[0031] In this embodiment, the controller is preferably a Siemens SIMATIC S7-1200, which facilitates the normal operation of the conveyor belt 3, electromagnetic flow meter 8, solenoid valve 9, pneumatic shut-off valve 10, micro pump 11, vision sensor 17 and electric actuator 18.
[0032] The working principle and usage process of this utility model are as follows: During filling, the filling container is first placed on the conveyor belt 3, and the container is transported to below the filling nozzle by the conveyor belt 3. The filling volume is preset by the controller, and then the two electric push rods 18 are activated synchronously by the controller. The electric push rods 18 drive the lifting plate 19 to move downward, which in turn drives the first filling tube 5 to move downward. The first filling tube 5 further drives the filling nozzle and the fixing plate 13 to move downward. When the fixing plate 13 moves downward, it drives the pressure plate 14 to move downward. When the pressure plate 14 contacts the container opening, the fixing plate 13 drives the filling nozzle to continue to move downward and extend into the container. At the same time, the spring 16 is compressed, and the container is fixed by the pressure plate 14 to prevent the container from tipping over during filling. Then, the solenoid valve 9 is opened by the controller to lubricate. The oil raw material flows out through the discharge pipe 4, the first filling pipe 5, the electromagnetic flowmeter 8, the buffer chamber 7, the second filling pipe 6, and the filling nozzle. The electromagnetic flowmeter 8 feeds back data to the controller in real time. When the controller detects that the flow rate is close to the set value (the specific value needs to be set according to the filling volume), the controller controls the electromagnetic valve 9 to a half-open state. When the flow rate is about to reach the set value, the electromagnetic valve 9 is fully closed, the pneumatic shut-off valve 10 is delayed in closing, and the micro pump 11 is started at the same time to pump the residual lubricating oil in the buffer chamber 7 and the second filling pipe 6 back to the oil storage tank 1 through the recovery pipe 12. This utility model achieves rapid opening and closing by using the electromagnetic valve 9 as the main control unit, the pneumatic shut-off valve 10 as a safety unit to completely cut off the pipeline, and recovers the residual lubricating oil through the micro pump 11, thus achieving three-level leakage prevention.
[0033] In the description of this utility model, it should be understood that the terms "left", "right", "up", "down", "top", "bottom", "front", "back", "inner", "outer", "back", "middle", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.
[0034] However, the above description is only a specific embodiment of this utility model and should not be construed as limiting the scope of implementation of this utility model. Therefore, any substitution of equivalent components or equivalent changes and modifications made in accordance with the scope of protection of this utility model should still fall within the scope of the claims of this utility model.
Claims
1. A leak-proof lubricating oil metering device, comprising an oil storage tank (1), wherein a conveyor belt (3) is disposed below the oil storage tank (1), characterized in that: The lower end of the oil storage tank (1) is provided with a discharge pipe (4), and the lower end of the discharge pipe (4) is provided with a filling mechanism. The filling mechanism includes a first filling pipe (5) connected to the lower end of the discharge pipe (4). The outer wall of the first filling pipe (5) is provided with an electromagnetic flow meter (8) and a solenoid valve (9). A second filling pipe (6) is provided on the lower side of the first filling pipe (5). The lower end of the second filling pipe (6) is provided with a filling nozzle. The outer wall of the second filling pipe (6) is provided with a pneumatic shut-off valve (10). A buffer chamber (7) is connected between the first filling pipe (5) and the second filling pipe (6). The outer wall of the buffer chamber (7) is provided with a micro pump (11). The input end of the micro pump (11) is connected to the buffer chamber (7). The output end of the micro pump (11) is connected to a recovery pipe (12). The other end of the recovery pipe (12) is connected to the oil storage tank (1).
2. The leak-proof lubricating oil metering device according to claim 1, characterized in that: A fixing plate (13) is fixedly connected to the outer wall of the second filling tube (6). A pressure plate (14) is provided below the fixing plate (13). Two sliding rods (15) that are slidably connected to the fixing plate (13) are fixedly connected to the upper end face of the pressure plate (14). Limit nuts are fixedly connected to the upper ends of the two sliding rods (15). Springs (16) located between the fixing plate (13) and the pressure plate (14) are sleeved on the outer wall of the two sliding rods (15).
3. The leak-proof lubricating oil metering device according to claim 2, characterized in that: A vision sensor (17) is provided on the lower end face of the pressure plate (14).
4. The leak-proof lubricating oil metering device according to claim 3, characterized in that: The outer wall of the oil storage tank (1) is fixedly connected to a bracket (2). Two symmetrically distributed electric actuators (18) are installed on the lower end face of the bracket (2). The output ends of the two electric actuators (18) are fixedly connected to a lifting plate (19). The first filling pipe (5) is fixedly connected to the lifting plate (19).
5. The leak-proof lubricating oil metering device according to claim 1, characterized in that: The discharge pipe (4) is a corrugated hose.
6. The leak-proof lubricating oil metering device according to claim 4, characterized in that: The outer wall of the bracket (2) is equipped with a controller, and the conveyor belt (3), electromagnetic flowmeter (8), solenoid valve (9), pneumatic shut-off valve (10), micro pump (11), vision sensor (17) and electric push rod (18) are all electrically connected to the controller.