Durable pneumatic actuator
Through the design of a complete lubrication system and real-time monitoring and control system in the pneumatic actuator, the adverse impact of wear and environmental changes on the operation of traditional pneumatic actuators is solved, and higher durability, accuracy and reliability are achieved.
Patent Information
- Application Number
- CN202421748696.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-23
- Publication Date
- 2025-05-16
- Estimated Expiration
- 2034-07-23
AI Technical Summary
Traditional pneumatic actuators are prone to wear during frequent movements and frictions, affecting working accuracy and service life. The lack of an effective lubrication system leads to increased energy loss and increased operating noise, making it difficult to meet application scenarios where high accuracy and reliability requirements are required.
A durable pneumatic actuator is designed, using a complete lubrication system, through the combination of lubricant storage tank, lubricating pipe and fuel injector, uniform lubrication of key parts is achieved, reducing friction and wear; at the same time, pressure sensors, stroke sensors, temperature sensors and humidity sensors are installed, and electrically connected to the controller to monitor and adjust the working status of the pneumatic actuator in real time.
It significantly extends the service life of the pneumatic actuator, reduces the cost of equipment maintenance and replacement, improves working accuracy and reliability, and ensures stable operation under different environmental conditions.
Smart Images
Figure CN222880488U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of pneumatic actuators, in particular to a durable pneumatic actuator. Background Art
[0002] A pneumatic actuator is a device that uses compressed air as a power source to convert air pressure energy into mechanical energy, thereby achieving control and driving of valves, dampers and other equipment. It is usually composed of a cylinder, a moving block, a push rod, a spring and other components. Its working principle is to control the direction and pressure of the compressed air entering the cylinder to push the moving block to move, thereby driving the push rod to produce linear displacement or rotational motion. Pneumatic actuators have the advantages of simple structure, fast action, high reliability and low maintenance cost. They are widely used in the field of industrial automation control, such as pipeline control and automated production processes in the chemical, petroleum, electric power, metallurgy, pharmaceutical and other industries.
[0003] Due to frequent movements and friction, the internal components of pneumatic actuators are prone to wear, affecting their working accuracy and service life. Especially in some application scenarios with high requirements for accuracy and reliability, such as precision machining, automated production lines, etc., the performance of traditional pneumatic actuators is often difficult to meet the requirements; at the same time, changes in the working environment, such as fluctuations in temperature and humidity, and unstable working pressure, will also have an adverse effect on the normal operation of pneumatic actuators. If these parameters are not monitored and adjusted in time, it may lead to actuator failure, reduced working efficiency and even production accidents; in addition, traditional pneumatic actuators lack an effective lubrication system, which will not only aggravate the wear of components, but also may lead to increased energy loss and increased operating noise.
[0004] To this end, we propose a durable pneumatic actuator. Utility Model Content
[0005] The main purpose of the utility model is to provide a durable pneumatic actuator to prevent excessive wear of the internal components of the pneumatic actuator due to frequent movement and friction, thereby improving its working accuracy and service life; to prevent the adverse effects of changes in the working environment on the normal operation of the pneumatic actuator, thereby improving its operating stability and reliability; to prevent the lack of an effective lubrication system from aggravating component wear, increasing energy loss and operating noise, thereby improving its working efficiency and performance, which can effectively solve the problems in the background technology.
[0006] In order to achieve the above purpose, the technical solution adopted by the utility model is:
[0007] A durable pneumatic actuator comprises a pneumatic actuator body, both ends of the pneumatic actuator body are fixedly mounted with a sealed shell, the outer wall of the sealed shell at one end away from the pneumatic actuator body is provided with a lubricant storage tank, an oil inlet nozzle is welded on the top outer wall of the lubricant storage tank, an observation window is provided at one end of the pneumatic actuator body of the lubricant storage tank, two groups of lubricating pipes are fixedly mounted on the inner walls of the two sealed shells, the lubricating pipes are connected with the lubricating tanks through oil pipelines, and the inner wall of the lubricating pipes has a plurality of groups of oil spray nozzles arranged at equal distances in a circular array;
[0008] A controller is fixedly mounted on the top outer wall of the pneumatic actuator body, and a pressure sensor, a stroke sensor, a temperature sensor and a humidity sensor are respectively fixedly mounted on the inner wall of the pneumatic actuator body.
[0009] By adopting the above technical solution, when the pneumatic actuator is working, the lubricant stored in the lubricant storage tank is injected through the oil inlet nozzle. When the inside of the pneumatic actuator needs to be lubricated, the lubricant enters the lubrication pipeline from the lubricant storage tank along the oil pipeline under pressure. As the lubricant flows in the lubrication pipeline, the lubricant is evenly sprayed to the internal connection part between the spring and the pneumatic actuator body through multiple groups of oil spray nozzles arranged in a circular array on the inner wall, thereby achieving effective lubrication of the spring and other components, reducing friction and wear, and improving the durability and working performance of the pneumatic actuator. The operator can observe the liquid level of the lubricant in the lubricant storage tank through the observation window for timely replenishment.
[0010] In this setting, the controller is used to receive and process data collected by the pressure sensor, stroke sensor, temperature sensor and humidity sensor; the pressure sensor monitors the working pressure inside the pneumatic actuator in real time and transmits the pressure data to the controller; the stroke sensor is responsible for detecting the movement stroke of the moving block or push rod and feeding back the stroke information to the controller; the temperature sensor measures the working temperature inside the pneumatic actuator so that the controller can understand the temperature conditions; the humidity sensor detects the humidity of the working environment, and the relevant data is also transmitted to the controller. The controller monitors and adjusts the working status of the pneumatic actuator based on the data from these sensors to ensure its stable and long-term operation under safe and appropriate conditions.
[0011] Furthermore, the pressure sensor, travel sensor, temperature sensor and humidity sensor are all electrically connected to the controller.
[0012] By adopting the above technical solution, the electrical connection can ensure stable and fast transmission of signals, so that the controller can receive and process the data of these sensors in a timely manner, thereby realizing accurate monitoring and control of the working status of the pneumatic actuator.
[0013] Furthermore, a moving block is movably connected inside the pneumatic actuator body, and a sealing ring is provided on the outer wall of the moving block.
[0014] By adopting the above technical solution, the sealing ring on the outer wall of the moving block fits tightly against the inner wall of the pneumatic actuator body during movement, effectively preventing compressed air from leaking from the gap between the moving block and the inner wall, thereby ensuring that the gas pressure can be effectively converted into power output of the moving block, thereby realizing the expected action and function of the pneumatic actuator.
[0015] Furthermore, a cylinder is fixedly connected to one side of the moving block close to the sealing shell, and a push rod is movably connected to one end of the cylinder away from the moving block.
[0016] By adopting the above technical solution, the energy of compressed air is converted into mechanical motion through the synergy between the moving block, the cylinder and the push rod, thereby achieving the working purpose of the pneumatic actuator.
[0017] Furthermore, the other end of the push rod is fixedly connected to the sealing shell, and the cylinder and the outside of the cylinder are both provided with a spring, and the spring is located inside the lubrication pipeline.
[0018] By adopting the above technical solution, since the spring is located inside the lubrication pipeline, it can be lubricated by the lubricant during operation, thereby reducing the friction between the spring and surrounding components, extending the service life of the spring, and ensuring the stability of its performance.
[0019] Furthermore, a first opening and a second opening are respectively formed at a lower portion of one side of the pneumatic actuator body.
[0020] By adopting the above technical solution, the first port and the second port are used for air intake and exhaust. When the pneumatic actuator needs to perform an action, compressed air enters the inside of the pneumatic actuator body from one of the ports, such as the first port, to push the moving block, cylinder and other components to move. When the actuator needs to be reset or stop the action, the gas is discharged from another port, such as the second port, to release the internal pressure, so that the component returns to the initial position or stops moving. The opening and closing of these two ports and the control of gas in and out realize the orderly operation and action switching of the pneumatic actuator.
[0021] Compared with the prior art, the utility model has the following beneficial effects:
[0022] (1) The utility model provides a durable pneumatic actuator which, through a perfect lubrication system, evenly sprays lubricant to key parts, thereby reducing friction and wear of components, significantly extending the service life of the pneumatic actuator, and reducing the cost of equipment maintenance and replacement.
[0023] (2) The utility model provides a durable pneumatic actuator with precise sensor monitoring and controller adjustment, which enables the pneumatic actuator to operate under safe and appropriate conditions, ensuring the stability and accuracy of the work, thereby improving the overall working performance.
[0024] (3) The utility model provides a durable pneumatic actuator. The setting of the observation window makes it convenient for the operator to timely understand the liquid level in the lubricant storage tank so as to replenish it in time, thereby reducing equipment failures caused by insufficient lubricant and simplifying the operating procedures of daily maintenance. BRIEF DESCRIPTION OF THE DRAWINGS
[0025] Figure 1 The utility model is a structural schematic diagram of a durable pneumatic actuator.
[0026] Figure 2 The utility model is a schematic diagram of a top view of the structure of a durable pneumatic actuator.
[0027] Figure 3 The utility model is a schematic diagram of the lubrication pipeline structure of a durable pneumatic actuator.
[0028] In the figure: 1. Pneumatic actuator body; 2. Sealed housing; 3. Lubricant storage tank; 4. Oil inlet nozzle; 5. Observation window; 6. Lubrication pipeline; 7. Oil pipeline; 8. Oil injection nozzle; 9. Controller; 10. Pressure sensor; 11. Travel sensor; 12. Temperature sensor; 13. Humidity sensor; 14. Moving block; 15. Sealing ring; 16. Cylinder; 17. Spring; 18. First port; 19. Second port; 20. Push rod. DETAILED DESCRIPTION
[0029] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.
[0030] In order to prevent the internal parts of the pneumatic actuator from excessive wear due to frequent movements and friction, thereby improving its working accuracy and service life; in order to prevent the adverse effects of changes in the working environment on the normal operation of the pneumatic actuator, thereby improving its operating stability and reliability; in order to prevent the lack of an effective lubrication system from exacerbating component wear, increasing energy loss and operating noise, thereby improving its working efficiency and performance, such as Figure 1 , Figure 2 , Figure 3As shown, a durable pneumatic actuator comprises a pneumatic actuator body 1, both ends of the pneumatic actuator body 1 are fixedly mounted with a sealed housing 2, the outer wall of the sealed housing 2 at one end away from the pneumatic actuator body 1 is provided with a lubricant storage tank 3, an oil inlet nozzle 4 is welded to the top outer wall of the lubricant storage tank 3, an observation window 5 is provided at one end of the pneumatic actuator body 1 of the lubricant storage tank 3, two groups of lubricating pipes 6 are fixedly mounted on the inner walls of the two sealed housings 2, the lubricating pipes 6 are connected with the lubricating pipes 3 through an oil delivery pipe 7, and the inner wall of the lubricating pipe 6 has a plurality of groups of oil spray nozzles 8 arranged at equal distances in a circular array;
[0031] A controller 9 is fixedly mounted on the top outer wall of the pneumatic actuator body 1 , and a pressure sensor 10 , a stroke sensor 11 , a temperature sensor 12 and a humidity sensor 13 are respectively fixedly mounted on the inner wall of the pneumatic actuator body 1 .
[0032] When in use, when the pneumatic actuator is working, the lubricant stored in the lubricant storage tank 3 is injected through the oil inlet nozzle 4. When the inside of the pneumatic actuator needs to be lubricated, the lubricant enters the lubricating pipeline 6 from the lubricant storage tank 3 along the oil pipeline 7 under the action of pressure. As the lubricant flows in the lubricating pipeline 6, the lubricant is evenly sprayed to the internal connection part between the spring 17 and the pneumatic actuator body 1 through the multiple groups of oil nozzles 8 arranged in a circular array on the inner wall, thereby achieving effective lubrication of the spring 17 and other components, reducing friction and wear, and improving the durability and working performance of the pneumatic actuator. The operator can observe the liquid level of the lubricant in the lubricant storage tank 3 through the observation window 5 for timely replenishment;
[0033] In this setting, the controller 9 is used to receive and process data collected from the pressure sensor 10, the stroke sensor 11, the temperature sensor 12 and the humidity sensor 13; the pressure sensor 10 monitors the working pressure inside the pneumatic actuator in real time and transmits the pressure data to the controller 9; the stroke sensor 11 is responsible for detecting the movement stroke of the moving block or the push rod, and feeding back the stroke information to the controller 9; the temperature sensor 12 measures the working temperature inside the pneumatic actuator, so that the controller 9 can understand the temperature conditions; the humidity sensor 13 detects the humidity of the working environment, and the relevant data is also transmitted to the controller 9. The controller 9 monitors and adjusts the working status of the pneumatic actuator based on the data transmitted by these sensors to ensure its stable and long-term operation under safe and appropriate conditions.
[0034] For example, Figure 1 , Figure 2 As shown, the utility model also includes that the pressure sensor 10 , the travel sensor 11 , the temperature sensor 12 and the humidity sensor 13 are all electrically connected to the controller 9 .
[0035] When in use, the electrical connection can ensure stable and fast transmission of signals, so that the controller 9 can receive and process the data of these sensors in a timely manner, thereby realizing accurate monitoring and control of the working state of the pneumatic actuator.
[0036] For example, Figure 2 As shown, the utility model further includes that a moving block 14 is movably connected inside the pneumatic actuator body 1 , and a sealing ring 15 is provided on the outer wall of the moving block 14 .
[0037] When in use, the sealing ring 15 on the outer wall of the moving block 14 fits tightly against the inner wall of the pneumatic actuator body 1 during movement, effectively preventing compressed air from leaking from the gap between the moving block 14 and the inner wall, thereby ensuring that the gas pressure can be effectively converted into power output of the moving block 14, thereby realizing the expected action and function of the pneumatic actuator.
[0038] For example, Figure 2 As shown, the utility model further includes that a cylinder 16 is fixedly connected to one side of the moving block 14 close to the sealing shell 2 , and a push rod 20 is movably connected to one end of the cylinder 16 away from the moving block 14 .
[0039] When in use, the energy of the compressed air is converted into mechanical motion through the synergistic effect between the moving block 14, the cylinder 16 and the push rod 20, thereby achieving the working purpose of the pneumatic actuator.
[0040] For example, Figure 2 As shown, the utility model also includes that the other end of the push rod 20 is fixedly connected to the sealing housing 2 , the cylinder 16 and the outside of the cylinder 16 are both provided with a spring 17 , and the spring 17 is located on the inner side of the lubrication pipeline 6 .
[0041] When in use, since the spring 17 is located inside the lubrication pipe 6, it can be lubricated by the lubricant during operation, thereby reducing the friction between the spring 17 and surrounding components, extending the service life of the spring 17, and ensuring the stability of its performance.
[0042] For example, Figure 1 , Figure 2 As shown, the utility model also includes that a first opening 18 and a second opening 19 are respectively opened at a lower portion of one side of the pneumatic actuator body 1 .
[0043] When in use, the first port 18 and the second port 19 are used for air intake and exhaust. When the pneumatic actuator is required to perform an action, compressed air enters the interior of the pneumatic actuator body 1 from one of the ports, such as the first port 18, to push the moving block 14, the cylinder 16 and other components to move. When the actuator needs to be reset or stop moving, the gas is discharged from another port, such as the second port 19, to release the internal pressure, so that the components return to the initial position or stop moving. The opening and closing of these two ports and the control of gas in and out realize the orderly operation and action switching of the pneumatic actuator.
[0044] It should be noted that the utility model is a durable pneumatic actuator. Compressed air enters the interior of the pneumatic actuator body 1 through the first port 18. The gas pressure pushes the moving block 14 to move, driving the cylinder 16 and the push rod 20 to move. The sealing ring 15 on the outer wall of the moving block 14 prevents gas leakage, ensuring that the pressure is effectively converted into power; the pressure sensor 10 monitors the working pressure inside the pneumatic actuator in real time and transmits the data to the controller 9. The stroke sensor 11 detects the movement stroke of the moving block 14 or the push rod 20 and feeds back to the controller 9. The temperature sensor 12 measures the internal working temperature, and the humidity sensor 13 detects the humidity. The humidity of the working environment is measured, and the relevant data are transmitted to the controller 9. The controller 9 monitors and adjusts the working state of the pneumatic actuator according to the received data; when internal lubrication is required, the lubricant enters the lubrication pipeline 6 from the lubricant storage tank 3 along the oil pipeline 7 under pressure, and the lubricant is evenly sprayed to the internal connection part between the spring 17 and the pneumatic actuator body 1, as well as other parts that need lubrication through the oil nozzle 8; when the action needs to be stopped, the gas is discharged from the second port 19 to release the internal pressure, and the elastic potential energy of the spring 17 helps the cylinder 16, the moving block 14 and other components to return to their initial positions.
[0045] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.
Claims
1. A durable pneumatic actuator, comprising a pneumatic actuator body (1), characterized in that: Both ends of the pneumatic actuator body (1) are fixedly mounted with sealed housings (2); the outer wall of one end of the sealed housing (2) away from the pneumatic actuator body (1) is provided with a lubricant storage tank (3); an oil inlet nozzle (4) is welded to the top outer wall of the lubricant storage tank (3); an observation window (5) is provided at one end of the pneumatic actuator body (1) of the lubricant storage tank (3); two groups of lubricating pipes (6) are fixedly mounted on the inner walls of the two sealed housings (2); the lubricating pipes (6) are connected to the lubricating pipes (3) through oil pipes (7); and the inner wall of the lubricating pipes (6) is provided with a plurality of groups of oil spray nozzles (8) arranged at equal distances in a circular array; A controller (9) is fixedly mounted on the top outer wall of the pneumatic actuator body (1), and a pressure sensor (10), a stroke sensor (11), a temperature sensor (12) and a humidity sensor (13) are respectively fixedly mounted on the inner wall of the pneumatic actuator body (1).
2. A durable pneumatic actuator according to claim 1, characterized in that: The pressure sensor (10), the travel sensor (11), the temperature sensor (12) and the humidity sensor (13) are all electrically connected to the controller (9).
3. A durable pneumatic actuator according to claim 1, characterized in that: A moving block (14) is movably connected inside the pneumatic actuator body (1), and a sealing ring (15) is provided on the outer wall of the moving block (14).
4. A durable pneumatic actuator according to claim 3, characterized in that: A cylinder (16) is fixedly connected to one side of the moving block (14) close to the sealing shell (2), and a push rod (20) is movably connected to one end of the cylinder (16) away from the moving block (14).
5. A durable pneumatic actuator according to claim 4, characterized in that: The other end of the push rod (20) is fixedly connected to the sealing housing (2), and the cylinder (16) and the outside of the cylinder (16) are both provided with a spring (17), and the spring (17) is located inside the lubrication pipeline (6).
6. A durable pneumatic actuator according to claim 1, characterized in that: A first opening (18) and a second opening (19) are respectively provided at a lower portion of one side of the pneumatic actuator body (1).