Loader air filter self-cleaning control device
By installing multiple layers of filters and a high-pressure dust collector in the loader's air filter, and using a controller to control high-pressure air to blow back and clean the dust, the problem of easy clogging of the loader's air filter in a confined environment is solved, achieving automated self-cleaning and efficient operation.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 山东济钢环保新材料有限公司
- Filing Date
- 2025-06-25
- Publication Date
- 2026-04-24
AI Technical Summary
When the loader's air filter is working in a closed material shed, it is easily clogged by dust. Manual cleaning is time-consuming and labor-intensive, which affects work efficiency.
Design a loader air filter self-cleaning control device. By setting up a multi-layer filter screen structure inside the filter barrel in reverse, combined with a high-pressure dust collector and controller, high-pressure air is periodically and instantaneously introduced into the air pipe to blow air in reverse, cleaning the dust on the surface of the filter screen, and then discharging it through the dust outlet.
The automated filter self-cleaning process improves the loader's working efficiency, extends the service life of the air filter, and reduces the time and labor intensity of manual cleaning.
Smart Images

Figure CN224161786U_ABST
Abstract
Description
Technical Field
[0001] This utility model mainly relates to the field of engine air filtration equipment, specifically a loader air filter self-cleaning control device. Background Technology
[0002] An air filter is a device that filters impurities from the air using an air filter element. It is generally used in the filtration system of engines in equipment such as loaders. When the engine is working, it needs to draw clean air from the air filter and mix it with fuel in the engine's combustion chamber to burn and produce power. If the air does not pass through the air filter element, the dust suspended in the air will be drawn into the cylinder, which will accelerate the wear of the piston assembly and cylinder. The main function of the air filter is to protect the engine's cylinders, pistons, and piston rings, and extend the engine's service life. It is an important component of the entire vehicle.
[0003] Currently, the loading and flattening of materials in the park all require the loaders to operate in enclosed material sheds. This results in a harsh working environment with a lot of dust, which can easily cause the loader's air filter to become clogged by the inhaled dust. Manually cleaning the loader's air filter is time-consuming, labor-intensive, and reduces the loader's working efficiency. Therefore, an air filter self-cleaning control device is needed to regularly self-clean the air filter structure to ensure filtration effectiveness and improve the loader's working efficiency. Utility Model Content
[0004] To address the shortcomings of existing technologies, this utility model provides a loader air filter self-cleaning control device. Its main function is to filter the air entering the loader by inverting the filter barrel and installing a multi-layered filter structure inside. This allows for multi-stage filtration of the air entering the filter barrel and further connects to the loader engine's intake structure, enabling clean air to enter the engine for operation. A high-pressure dust collector structure is installed around the vent pipe. A controller controls the periodic, instantaneous injection of high-pressure air into the vent pipe to blow air backwards onto each filter screen, thus completing the self-cleaning process. Dust is discharged from the bottom of the inverted filter barrel structure. A dust discharge port is provided around the filter barrel, and a spring and guide structure allow the dust discharge port to open during self-cleaning, expelling dust from the filter screen surface that is not in contact with the outside environment.
[0005] To achieve the above objectives, this utility model employs the following technical solution:
[0006] A loader air filter self-cleaning control device includes an air intake filter barrel, a connecting pipe fixedly installed inside the air intake filter barrel, air inlets equally spaced around the upper part of the connecting pipe, a plurality of filter screen support rings equally spaced around the inside of the air intake filter barrel, filter screens fixedly installed inside the filter screen support rings and fixedly connected to the outer periphery of the connecting pipe, and a connecting ring fixedly installed around the bottom of the connecting pipe.
[0007] Furthermore, a high-pressure dust collector is fitted around the outer periphery of the connecting pipe, and several air outlets are fixedly arranged at equal intervals around the inner side of the high-pressure dust collector, passing through the connecting pipe and fixedly connected to it. An air outlet filter screen is fixedly arranged inside the air outlet, and an air inlet grille is opened at equal intervals in a circle around the rear side of the high-pressure dust collector. A controller is fixedly arranged on the front side of the high-pressure dust collector.
[0008] Furthermore, a plurality of dust discharge ports are fixedly arranged at equal intervals around the connecting pipe, and a dust discharge plate support frame is fixedly arranged around the dust discharge ports. Dust discharge plate pivot seats are fixedly arranged on both sides of the upper part of the dust discharge plate support frame, and a dust discharge plate is arranged between the two dust discharge plate pivot seats. A pivot rod groove is opened on the upper part of the dust discharge plate, and a pivot rod is fixedly arranged inside the pivot rod groove and installed in the dust discharge plate pivot seat for rotational connection. A pivot spring is sleeved on the inner side of the pivot rod and fixedly connected to the dust discharge plate pivot seat. An airflow plate is fixedly arranged at the rear of the dust discharge plate.
[0009] Compared with the existing technology, the beneficial effects of this utility model are:
[0010] 1. By setting the filter bucket in reverse and setting a multi-layer filter structure inside the filter bucket, the air entering the filter bucket is filtered in multiple stages and further connected to the air intake structure of the loader engine to allow clean air to enter the loader engine for operation. Furthermore, a high-pressure dust collector structure is set around the air pipe. The controller controls the timed instantaneous injection of high-pressure air into the air pipe to blow air in reverse on each filter screen, thereby completing the self-cleaning work of the filter screen.
[0011] 2. During the self-cleaning process, dust is discharged from the bottom of the inverted filter bucket structure, and dust discharge ports are set around the filter bucket. By setting a spring structure and a flow guiding structure, the dust discharge ports can be opened during self-cleaning to discharge dust from the surface of the filter screen that is not in contact with the outside world. Attached Figure Description
[0012] Figure 1 This is a schematic diagram of the structure of this utility model;
[0013] Figure 2 This is a schematic diagram of the structure of this utility model;
[0014] Figure 3 This is a cross-sectional structural schematic diagram of the present invention;
[0015] Figure 4 This is a schematic diagram of the air intake filter barrel structure of this utility model;
[0016] Figure 5 This is a partial schematic diagram of the structure of this utility model;
[0017] Figure 6 This is a schematic diagram of the dust removal plate structure of this utility model.
[0018] The labels shown in the attached diagram are: 1. Inlet filter barrel; 2. Connecting pipe; 3. Air inlet; 4. Filter screen support ring; 5. Filter screen; 6. Connecting ring;
[0019] 7. High-pressure dust collector; 8. Air outlet; 9. Air outlet filter; 10. Air inlet grille; 11. Controller;
[0020] 12. Dust outlet; 13. Dust discharge plate support frame; 14. Dust discharge plate pivot seat; 15. Dust discharge plate; 16. Pivot groove; 17. Pivot rod; 18. Pivot spring; 19. Airflow plate. Detailed Implementation
[0021] The present invention will be further described in conjunction with the accompanying drawings and specific embodiments. It should be understood that these embodiments are for illustrative purposes only and are not intended to limit the scope of the present invention. Furthermore, it should be understood that after reading the teachings of this invention, those skilled in the art can make various alterations or modifications to the present invention, and these equivalent forms also fall within the scope defined in this application.
[0022] Example: A loader air filter self-cleaning control device
[0023] like Figure 1-6 As shown, a loader air filter self-cleaning control device has the following specific structure:
[0024] A loader air filter self-cleaning control device includes an air intake filter barrel 1, a connecting pipe 2 fixedly installed inside the air intake filter barrel 1, air inlets 3 evenly spaced around the upper part of the connecting pipe 2, a plurality of filter screen support rings 4 evenly spaced around the inside of the air intake filter barrel 1, filter screens 5 fixedly installed inside the filter screen support rings 4 and fixedly connected to the outer periphery of the connecting pipe 2, and a connecting ring 6 fixedly installed around the bottom of the connecting pipe 2. By reversing the air intake filter barrel 1, air enters from its bottom. The air is further filtered by multiple layers of filter screens 5, and the filtered air enters the connecting pipe 2 through the air inlets 3. The connecting ring 6 connects to the loader's air intake structure, allowing the air to enter the air intake structure for operation.
[0025] A high-pressure dust collector 7 is fitted around the outer periphery of the connecting pipe 2. Several air outlets 8 are fixedly arranged at equal intervals around the inner side of the high-pressure dust collector 7, passing through the connecting pipe 2 and fixedly connected to it. An air outlet filter screen 9 is fixedly arranged inside the air outlet 8. An air inlet grille 10 is opened at equal intervals around the rear side of the high-pressure dust collector 7. A controller 11 is fixedly arranged at the front side of the high-pressure dust collector 7. The controller 11 controls the high-pressure dust collector 7 to instantly introduce high-pressure air into the connecting pipe 2 through the air outlets 8. The high-pressure air blows the dust attached to the surface of the filter screen 5 in the opposite direction and cleans it.
[0026] A plurality of dust discharge ports 12 are fixedly arranged at equal intervals around the connecting pipe 2. A dust discharge plate support frame 13 is fixedly arranged around the dust discharge ports 12. Dust discharge plate pivot seats 14 are fixedly arranged on both sides of the upper part of the dust discharge plate support frame 13. A dust discharge plate 15 is arranged between the two sides of the dust discharge plate pivot seats 14. A pivot groove 16 is opened on the upper part of the dust discharge plate 15. A pivot rod 17 is fixedly arranged inside the pivot groove 16 and installed in the dust discharge plate pivot seat 14 and rotatably connected to it. A pivot spring 18 is sleeved on the inner side of the pivot rod 17 and fixedly connected to the dust discharge plate pivot seat 14. By setting the dust discharge ports 12, the dust cleaned in reverse by the high-pressure dust collector 7 is discharged through them. The dust removal plate 15 is set up and driven by the rotating shaft spring 18 to block the front of the dust discharge port 12, so that the airflow entering from the bottom of the air intake filter barrel 1 can pass through the dust removal plate 15 and not be discharged from the dust discharge port 12. An airflow plate 19 is fixedly provided at the rear of the dust removal plate 15. The airflow entering from the bottom of the air intake filter barrel 1 pushes the airflow plate 19 to move upward, thereby ensuring that the dust removal plate 15 is closed to prevent air leakage. When the high-pressure dust collector 7 introduces high-pressure air into the device, the high-pressure air pushes the airflow plate 19 to move downward, further assisting the dust removal plate 15 to open, so that the dust can be discharged from the dust discharge port 12 for cleaning.
[0027] This solution also includes a controller, the location of which is set by the operator according to the actual situation during operation. The controller is used to control the electrical components used in this solution, including but not limited to sensors, motors, telescopic rods, water pumps, solenoid valves, heating wires, heat pumps, displays, computer input devices, switches, communication devices, lights, speakers, and microphones. The controller is an Intel processor, AMD processor, PLC controller, ARM processor, or microcontroller. It is used in conjunction with a motherboard, memory modules, storage media, and power supply, which is AC power or a lithium battery. When a display screen is provided, a graphics card is also included. For the operating principle of the controller, please refer to "Principles of Automatic Control," "Microcontroller Principles and Application Simulation Cases," and "Sensor Principles and Applications" published by Tsinghua University Press. Other books in this field can also be consulted. Other automation control and electrical components not mentioned are knowledge well known to those skilled in the art and will not be described in detail here.
[0028] Working principle:
[0029] In use, this device is first connected to the loader's air intake structure via the connecting ring 6, allowing air to enter the air intake filter barrel 1 through the bottom opening. The air is then filtered by multiple sets of filter screens 5, and clean air enters the connecting pipe 2 through the air inlet 3 and finally enters the loader's air intake structure for operation. When air enters, the airflow plate 19 is blown to keep the dust removal plate 15 closed, preventing air leakage from the dust removal port 12. The controller 11 controls the high-pressure dust collector 7 to operate periodically, releasing high-pressure gas instantaneously from the outlet 8 into the connecting pipe 2. This high-pressure gas then blows away dust and impurities filtered from the filter screens 5, cleaning them in the opposite direction. Dust and impurities from the bottom filter screens 5 are discharged from the bottom of the air intake filter barrel 1, while dust from other filter screens 5 is cleaned. Simultaneously, high-pressure air pushes the airflow plate 19 downwards, further assisting the dust removal plate 15 in opening and allowing dust to be discharged from the dust removal port 12 for cleaning.
[0030] In explaining this utility model, it should be noted that the terms indicating location are only for ease of description and understanding, and are not intended to limit the installation location of specific technical features. Other possible installation methods are not excluded.
[0031] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.
Claims
1. A loader air filter self-cleaning control device, comprising an intake filter barrel (1), characterized in that: The air intake filter barrel (1) is fixedly provided with a connecting pipe (2). The upper part of the connecting pipe (2) is provided with air inlets (3) at equal intervals. The air intake filter barrel (1) is fixedly provided with several filter screen support rings (4) at equal intervals. The filter screen support ring (4) is fixedly provided with a filter screen (5) and is fixedly connected to the outer periphery of the connecting pipe (2). The bottom of the connecting pipe (2) is fixedly provided with a connecting ring (6).
2. The loader air filter self-cleaning control device according to claim 1, characterized in that: The high-pressure dust collector (7) is fitted around the outer periphery of the connecting pipe (2). Several air outlets (8) are fixedly arranged at equal intervals around the inner side of the high-pressure dust collector (7) and pass through the connecting pipe (2) and are fixedly connected to it. An air outlet filter screen (9) is fixedly arranged inside the air outlet (8). An air inlet grille (10) is opened at equal intervals around the rear side of the high-pressure dust collector (7). A controller (11) is fixedly arranged on the front side of the high-pressure dust collector (7).
3. The loader air filter self-cleaning control device according to claim 1, characterized in that: The connecting pipe (2) is fixed with several dust discharge ports (12) at equal intervals around its circumference. A dust discharge plate support frame (13) is fixed around the dust discharge port (12). Dust discharge plate pivot seats (14) are fixed on both sides of the upper part of the dust discharge plate support frame (13). A dust discharge plate (15) is provided between the two dust discharge plate pivot seats (14). A pivot rod groove (16) is opened on the upper part of the dust discharge plate (15). A pivot rod (17) is fixed inside the pivot rod groove (16) and installed in the dust discharge plate pivot seat (14) and rotated therewith. A pivot spring (18) is sleeved on the inner side of the pivot rod (17) and fixedly connected to the dust discharge plate pivot seat (14). An airflow plate (19) is fixed at the rear of the dust discharge plate (15).