Maintenance-free engineering machinery engine air inlet filter element with electric dust removal function

Abstract

The invention discloses a maintenance-free engineering machinery engine air inlet filter element with an electric dust removal function. The air inlet filter element comprises a dust removal shell, an air inlet cap installed at the top of the dust removal shell, at least two electric dust removal assemblies arranged between the dust removal shell and the air inlet cap, dust removal pieces arranged outside the electric dust removal assemblies, and an engine air inlet pipe communicated with the air inlet end of an engine. The dust discharging and wind sheltering device shell and the dust discharging assembly are installed at the bottom of the dust removing shell. The electric dust removal assembly drives the dust removal piece to generate flapping and shaking effects in the working process, so that dust attached to the surface of the dust removal piece falls off and is collected downwards. Through cooperation of an electric active dust removing structure and a controllable dust discharging structure, maintenance-free and cleaning-free use of the air inlet filter element in the long-term operation process of engineering machinery is achieved, air inlet resistance is effectively reduced, the reliability of an engine air inlet system is improved, and the service life of the engine air inlet system is prolonged.

Description

Technical Field

[0001] This invention relates to a vehicle intake air filter element, specifically to a maintenance-free engineering machinery engine intake air filter element with electric dust removal function. Background Technology

[0002] Construction machinery engines typically operate continuously for extended periods under conditions of high dust concentration, complex environments, and harsh working conditions. This is especially true in the actual use scenarios of construction machinery such as loaders, bulldozers, graders, and road rollers. These machines are often in environments involving earthmoving, road construction, mining, site leveling, and material loading and unloading, where the air contains large amounts of dust, gravel, and impurities. If this dust is not effectively filtered and removed in time, it can easily enter the engine through the intake system, causing abnormal wear on critical components such as cylinders, pistons, and turbines. In severe cases, it can also lead to problems such as reduced engine power, increased fuel consumption, and shortened engine lifespan.

[0003] In existing technologies, construction machinery engines generally employ dry or wet intake filter structures to intercept and filter dust in the intake air. While these filters offer some initial filtration effectiveness, as the equipment operates over time, a large amount of dust easily accumulates inside the filter, continuously increasing intake resistance and consequently affecting the engine's intake efficiency and combustion performance. To ensure normal engine operation, existing filter structures typically require periodic manual disassembly, cleaning, or replacement. This not only increases equipment and labor costs but also, in the context of construction sites, makes filter disassembly and assembly cumbersome, inefficient, and even poses risks of secondary pollution and untimely maintenance.

[0004] Especially in the actual use of construction machinery such as loaders, bulldozers, graders, and road rollers, the equipment is often in a continuous operating state. On-site conditions are limited, and strict adherence to manual maintenance cycles is difficult. If the filter element becomes clogged and not cleaned in time, it can easily lead to insufficient engine air intake or even engine shutdown, affecting project progress and construction safety. Furthermore, while some existing technologies attempt to achieve filter dust removal through passive dust removal structures or mechanical vibration, their dust removal effect is limited. They cannot achieve continuous, efficient, and controllable active dust removal, and still cannot meet the actual needs of construction machinery under complex working conditions for maintenance-free and cleaning-free air intake systems.

[0005] Therefore, how to provide a maintenance-free air intake filter structure that can achieve active electric dust removal, effective dust discharge, reduce the frequency of manual maintenance, and improve the reliability of the engine intake system, taking into account the usage characteristics of construction machinery such as loaders, bulldozers, loaders, graders, and road rollers under complex working conditions such as high dust, strong vibration, and long-term continuous operation, has become a technical problem that urgently needs to be solved by those skilled in the art. Summary of the Invention

[0006] To address the aforementioned problems, this invention provides a maintenance-free air intake filter element for engineering machinery engines with electric dust removal function, which effectively overcomes the shortcomings of existing technologies.

[0007] This invention is achieved through the following technical solution: a maintenance-free air intake filter element for engineering machinery engines with electric dust removal function, comprising: A dust collector housing, wherein an air inlet cap is installed on the top of the dust collector housing; At least two electric dust removal components are rotatably mounted between the dust removal housing and the air inlet cap; A dust removal component is installed on the outside of each of the electric dust removal assemblies. When the electric dust removal assembly rotates, the rotational force of the electric dust removal assembly is used to beat the dust on the dust removal component and shake it to the bottom. The engine intake pipe has one end connected to the dust collector housing and the other end connected to the engine intake. A dust extraction windproof housing is installed at the bottom of the dust removal housing; The dust removal assembly is installed inside the dust removal windproof housing.

[0008] As a preferred technical solution, the bottom of the dust removal housing is provided with multiple dust removal ports, each of which is connected to the dust removal component, and the dust exhaust windproof housing is used to seal the multiple dust removal ports.

[0009] As a preferred technical solution, the dust removal assembly includes a dust removal motor, which is fixedly installed at the bottom of the dust removal windproof housing. A dust removal rubber impeller is installed at the output end of the dust removal motor. A dust removal port is provided on the dust removal windproof housing. A dust removal tooth groove is provided around the dust removal rubber impeller. The dust removal port is sealed by the dust removal rubber impeller. When the dust removal tooth groove is directly facing the dust removal port, the dust is removed and discharged.

[0010] As a preferred technical solution, each of the electric dust removal components includes a drive motor, which is fixed on a motor bearing housing, and the motor bearing housing is fixed inside the air inlet cap by screws and bolts; Each of the drive motors is equipped with a dust removal shaft at its output end, and each dust removal shaft is equipped with one or more tendon bars on its exterior, which are used to beat the dust removal component.

[0011] As a preferred technical solution, a connecting bearing is embedded in the bottom of each dust removal shaft, and a protruding fixed shaft is provided on the inner side of the bottom plate of the dust removal housing. The bottom of the dust removal shaft is mounted on the fixed shaft through the connecting bearing.

[0012] As a preferred technical solution, the dust removal component is a dust removal bag.

[0013] As a preferred technical solution, the dust exhaust windproof housing is fixedly installed at the bottom of the dust removal housing by screws.

[0014] As a preferred technical solution, the dust collector bag is fixedly installed on the inner end of a dust collector keel, and the upper and lower ends of the dust collector keel are fixedly installed on the upper and lower ends of the dust collector shell by screws.

[0015] As a preferred technical solution, the bottom of the air intake cap is provided with one or more air intake holes.

[0016] The beneficial effects of this invention are as follows: By introducing an electric dust removal component inside the engine intake filter and setting a rotatable dust removal component structure, the filter can actively beat and shake off the dust attached to the surface of the dust removal component during engine operation, avoiding long-term accumulation of dust inside the filter. This fundamentally solves the problem of traditional engineering machinery intake filters relying on manual disassembly and cleaning and frequent maintenance, achieving truly maintenance-free and cleaning-free operation.

[0017] This invention provides multiple dust collection ports at the bottom of the dust collector housing that communicate with the dust collection components, and a dust exhaust windproof shell and dust exhaust assembly on the outside of the housing. This ensures that the filter element remains sealed when not in dust exhaust mode, and selectively communicates with the outside when in dust exhaust mode. This effectively prevents external dust from flowing back into the filter element when not in dust exhaust mode, significantly improving the sealing reliability of the intake system in high dust environments. It is particularly suitable for the long-term use needs of complex working conditions of construction machinery such as loaders, bulldozers, graders, and road rollers.

[0018] This invention employs a dust-discharging rubber impeller structure driven by a dust-discharging motor. The periodic alignment of the dust-discharging grooves with the dust-discharging port achieves directional dust discharge. This not only promptly discharges the dust shaken off from the filter element, but also automatically restores the sealing state after dust discharge, effectively preventing external airflow and dust from entering in reverse. This avoids the problem of insufficient sealing performance of traditional normally open dust discharge structures in windy and sandy environments.

[0019] This invention provides at least two electrically operated dust removal components between the intake cap and the dust removal housing, enabling the dust removal effect to cover the entire dust removal area. This avoids the formation of localized cleaning or dust removal dead zones, and can maintain stable air intake passage unobstructed during long-term continuous engine operation, reducing the problems of reduced engine power and increased fuel consumption caused by increased intake resistance.

[0020] In this invention, the electric dust removal component uses a drive motor to rotate the dust removal shaft and a flexible tapping method with a set of reinforcing bars to beat the dust removal components. This ensures the dust removal effect while avoiding rigid impact damage to the dust removal components, effectively extending the service life of the dust removal bag and improving the overall durability and reliability of the filter element structure.

[0021] This invention provides a connecting bearing at the bottom of the dust removal shaft, which is then installed in conjunction with a fixed shaft inside the dust removal housing. This ensures that the dust removal shaft maintains a stable support state during high-speed rotation, reducing operational vibration and mechanical wear, and guaranteeing that the electric dust removal assembly can still operate stably for a long time under the strong vibration conditions of engineering machinery.

[0022] This invention fixes the dust collector bag to the inner end of the dust collector keel, and the upper and lower ends of the dust collector keel are fixedly connected to the dust collector shell, so that the dust collector bag maintains a stable installation shape and is not prone to displacement or collapse during the dust removal process, thereby further improving the dust removal efficiency and the overall reliability of the filter element structure. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0024] Figure 1 This is a schematic diagram of the exploded structure of the present invention; Figure 2 This is a schematic diagram of the dust removal component of the present invention; Figure 3 This is a schematic diagram of the air intake cap portion of the present invention; Figure 4 This is a cross-sectional schematic diagram of the present invention; Figure 5 This is a schematic diagram of the overall structure of the present invention; Explanation of reference numerals in the attached figures: 16. Dust collector housing; 1. Air inlet cap; 8. Engine air inlet pipe; 22. Dust exhaust windproof housing; 19. Dust collection port; 25. Dust exhaust motor; 21. Dust exhaust rubber impeller; 23. Dust discharge port; 3. Drive motor; 5. Motor bearing housing; 7. Dust collector shaft; 9. Tendon rod; 10. Connecting bearing; 18. Fixed shaft; 14. Dust collector bag; 15. Dust collector frame; 4. Air inlet hole; 2. Screws and bolts. Detailed Implementation

[0025] All features disclosed in this specification, or steps in all methods or processes disclosed herein, may be combined in any way, except for mutually exclusive features and / or steps.

[0026] Any feature disclosed in this specification (including any appended claims, abstract, and drawings) may be replaced by other equivalent or similar features for a similar purpose, unless specifically stated otherwise. That is, unless specifically stated otherwise, each feature is merely one example of a series of equivalent or similar features.

[0027] This invention relates to the field of engine intake systems for construction machinery, and in particular to a maintenance-free engine intake filter structure with electric dust removal function suitable for use in construction machinery such as loaders, bulldozers, graders, and road rollers under high dust, strong vibration, and long-term continuous operation conditions.

[0028] In a specific embodiment of the present invention, such as Figures 1-5 As shown, the maintenance-free air intake filter element for construction machinery engines with electric dust removal function has a vertically arranged structure. Its main body is composed of a dust removal housing 16, which forms a closed filtration space during engine intake and serves as a mounting carrier for various internal functional components. An intake cap 1 is fixedly installed on the top of the dust removal housing 16, forming a stable assembly structure between the intake cap 1 and the dust removal housing 16, allowing outside air to enter the interior of the dust removal housing 16 through the intake cap 1. The bottom of the intake cap 1 has one or more air intake holes 4 arranged circumferentially, allowing air to enter the filter element from multiple directions, thereby reducing the problem of localized dust accumulation caused by a single air intake direction. This design is particularly suitable for use in construction machinery in environments with multiple dust sources and wind directions.

[0029] At least two electric dust removal components are provided in the internal space between the dust removal housing 16 and the air inlet cap 1. Multiple electric dust removal components are arranged at circumferential intervals so that the dust removal effect can cover the entire dust removal area. Each electric dust removal component is installed in a rotatable manner so that it can continuously rotate around its own axis during operation.

[0030] Each electric dust removal assembly includes a drive motor 3, which is fixedly mounted on a motor bearing housing 5. The motor bearing housing 5 is securely fixed to the inner structure of the air inlet cap 1 by screws and bolts, thereby ensuring that the drive motor 3 can maintain reliable positioning even under the vibration environment of engineering machinery. Each drive motor 3 has a dust removal shaft 7 installed at its output end. The dust removal shaft 7 extends vertically, with its bottom passing through the dust removal area and extending downwards to a position near the bottom of the dust removal housing 16.

[0031] One or more flexible rods 9 are installed on the outside of the dust removal shaft 7. The flexible rods 9 extend radially along the dust removal shaft 7. The flexible rods 9 have good flexibility and fatigue resistance. When the dust removal shaft 7 rotates, the flexible rods 9 move in a circular motion synchronously with the dust removal shaft 7. Because the flexible rods 9 have a certain degree of elasticity, when they come into contact with the dust removal components during rotation, they will generate periodic tapping and shaking effects on the dust removal components, thereby effectively shaking off the dust adhering to the surface of the dust removal components.

[0032] In this embodiment, the dust removal component adopts a dust collector bag 14 structure. The dust collector bag 14 is fitted over the corresponding electric dust removal component and forms an enclosing relationship with the dust removal shaft 7 and the reinforcing bar 9. The inner end of the dust collector bag 14 is fixedly installed on the dust removal keel 15. The upper and lower ends of the dust removal keel 15 are respectively fixedly installed on the upper and lower ends of the dust removal housing 16 by screws, so that the dust collector bag 14 maintains a stable tension in the overall structure and avoids collapse or displacement during long-term dust removal. After the air enters the dust removal housing 16, it must first be filtered by the dust collector bag 14. Dust is blocked on the surface of the dust collector bag 14, while the clean air continues to flow in the direction of engine intake.

[0033] To ensure the stability of the dust removal shaft 7 under high-speed rotation, a connecting bearing 10 is embedded in the bottom of the dust removal shaft 7, and a protruding fixed shaft 18 is provided at the corresponding position on the inner side of the bottom plate of the dust removal housing 16. The bottom of the dust removal shaft 7 is mounted on the fixed shaft 18 through the connecting bearing 10, thereby forming a double-end support structure, which enables the dust removal shaft 7 to maintain stable operation under the conditions of strong vibration and high speed of engineering machinery, and reduces mechanical wear and noise.

[0034] Multiple dust collection ports 19 are provided at the bottom of the dust collector housing 16, each of which communicates with the internal space of the corresponding dust collector bag 14. When the rubber rod 9 taps the dust collector bag 14 and causes dust to fall off the surface of the bag, the fallen dust moves downward under the action of gravity and enters the bottom area of ​​the dust collector housing 16 through the dust collection port 19. A dust exhaust windproof shell 22 is fixedly installed on the outer bottom of the dust collector housing 16. The dust exhaust windproof shell 22 is reliably connected to the dust collector housing 16 by screws, and is used to seal and protect the multiple dust collection ports 19 as a whole.

[0035] The dust exhaust windproof housing 22 houses a dust exhaust assembly, which includes a dust exhaust motor 25. The dust exhaust motor 25 is fixedly installed at the bottom of the dust exhaust windproof housing 22, and the output end of the dust exhaust motor 25 is connected to a dust exhaust rubber impeller 21. A dust exhaust port 23 is provided on the dust exhaust windproof housing 22 at a position corresponding to the position of the dust exhaust rubber impeller 21, and a dust exhaust tooth groove is provided around the outer circumference of the dust exhaust rubber impeller 21.

[0036] When dust is not being discharged, the dust discharge rubber impeller 21 completely seals the dust discharge port 23, preventing the dust discharge windproof housing 22 from being connected to the outside, thereby preventing external dust from flowing back into the filter element during the operation of the engineering machinery.

[0037] When dust removal is required, the dust removal motor 25 starts, driving the dust removal rubber impeller 21 to rotate. As the dust removal rubber impeller 21 rotates, the dust removal grooves periodically align with the dust removal port 23, causing the dust removal port 23 to open briefly, thereby quickly discharging the dust accumulated in the dust removal windproof housing 22 to the outside. After dust removal is completed, the dust removal rubber impeller 21 continues to rotate and covers the dust removal port 23 again, realizing an intermittent and controllable dust removal process. This invention utilizes the angle of the dust removal rubber impeller to achieve windproofing, with a 90-degree difference between the angle of dust falling and the angle of dust removal.

[0038] Throughout the entire operation, one end of the engine intake pipe 8 is connected to the dust collector housing 16, and the other end is connected to the engine intake end, so that clean air after multiple filtrations and active dust removal treatment can stably enter the engine.

[0039] The combined effect of the electric dust removal component continuously beating the dust collection bag 14 and the dust discharge component periodically discharging dust ensures that the filter element maintains a low air intake resistance during long-term continuous operation of engineering machinery, effectively avoiding the problem of frequent manual disassembly and cleaning of traditional filter elements due to severe dust accumulation.

[0040] This invention integrates an electric active dust removal structure and a controllable dust discharge structure into the air intake filter of an engineering machinery engine, making it particularly suitable for high-dust, high-intensity operating environments such as loaders, bulldozers, graders, and road rollers. This achieves long-term maintenance-free operation of the air intake filter and significantly improves the reliability and engineering applicability of the engine intake system.

[0041] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any changes or substitutions conceived without inventive effort should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope defined in the claims.

Claims

1. A maintenance-free air intake filter element for engineering machinery engines with electric dust removal function, characterized in that, include: A dust collector housing (16) is provided with an air inlet cap (1) on its top. At least two electric dust removal assemblies are rotatably mounted between the dust removal housing (16) and the air inlet cap (1); A dust removal component is installed on the outside of each of the electric dust removal assemblies. When the electric dust removal assembly rotates, the rotational force of the electric dust removal assembly is used to beat the dust on the dust removal component and shake it to the bottom. The engine intake pipe (8) is connected to the dust collector housing (16) at one end and connected to the engine intake end at the other end. The dust collector housing (22) is installed at the bottom of the dust collector housing (16); The dust removal assembly is installed inside the dust removal windproof housing (22).

2. The maintenance-free air intake filter element for engineering machinery engines with electric dust removal function according to claim 1, characterized in that: The bottom of the dust removal housing (16) is provided with a plurality of dust removal ports (19), each of the dust removal ports (19) is connected to the dust removal component, and the dust exhaust windproof housing (22) is used to seal the plurality of dust removal ports (19).

3. The maintenance-free air intake filter element for engineering machinery engines with electric dust removal function according to claim 2, characterized in that: The dust removal assembly includes a dust removal motor (25), which is fixedly installed at the bottom of the dust removal windproof housing (22). A dust removal rubber impeller (21) is installed at the output end of the dust removal motor (25). A dust removal port (23) is provided on the dust removal windproof housing (22). A dust removal tooth groove is provided around the dust removal rubber impeller (21). The dust removal port (23) is sealed by the dust removal rubber impeller (21). When the dust removal tooth groove is facing the dust removal port (23), the dust is removed and discharged.

4. The maintenance-free air intake filter element for engineering machinery engines with electric dust removal function according to claim 1, characterized in that: Each of the electric dust removal components includes a drive motor (3), which is fixed on a motor bearing seat (5). The motor bearing seat (5) is fixed inside the air inlet cap (1) by screws and bolts. Each of the drive motors (3) has a dust removal shaft (7) installed at its output end. Each dust removal shaft (7) has one or more tendon bars (9) installed on its exterior. The dust removal components are then beaten by the tendon bars (9).

5. The maintenance-free air intake filter element for engineering machinery engines with electric dust removal function according to claim 4, characterized in that: A connecting bearing (10) is embedded in the bottom of each dust removal shaft (7), and a protruding fixed shaft (18) is provided on the inner side of the bottom plate of the dust removal housing (16). The bottom of the dust removal shaft (7) is mounted on the fixed shaft (18) through the connecting bearing (10).

6. The maintenance-free intake filter element for engineering machinery engines with electric dust removal function according to claim 1, characterized in that: The dust removal component is a dust collector bag (14).

7. The maintenance-free air intake filter element for engineering machinery engines with electric dust removal function according to claim 1, characterized in that: The dust exhaust windproof housing (22) is fixedly installed at the bottom of the dust removal housing (16) by screws.

8. The maintenance-free air intake filter element for engineering machinery engines with electric dust removal function according to claim 6, characterized in that: The dust collector bag (14) is fixedly installed on the inner end of a dust collector keel (15), and the upper and lower ends of the dust collector keel (15) are fixedly installed on the upper and lower ends of the dust collector shell (16) by screws.

9. The maintenance-free air intake filter element for engineering machinery engines with electric dust removal function according to claim 1, characterized in that: The bottom of the air intake cap (1) is provided with one or more air intake holes (4).

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