Fan device with pre-dust-falling function for hovercraft

Abstract

The utility model discloses a hovercraft fan device with a pre-dust-fall function, which comprises a fan shell, a dust-fall spraying ring seat is detachably and fixedly connected to the front end part of the fan shell, and a dust-fall atomizing nozzle is fixedly connected to the inner side part of the dust-fall spraying ring seat corresponding to the circumference of the dust-fall spraying ring seat; a water supply pipe is communicated with the dust-falling atomizing nozzle through the dust-falling spraying ring seat, and a water supply pump is communicated with the water supply pipe; a first fan blade set and a second fan blade set are sequentially assembled in the fan shell, and the first fan blade set and the second fan blade set are coaxially arranged in a propeller reversing mode. The technical problems that in the prior art, dust is prone to being accumulated during operation of a fan for a hovercraft, so that the propelling efficiency and the function stability of the fan are reduced, the overall maintenance cost is increased, and the application economical efficiency is poor are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of air cushion ship equipment, in particular to an air cushion ship fan device with a pre-dust reduction function. Background Art

[0002] At present, the hovercraft is a modern water transportation tool that uses air cushion and fan technology for suspension and propulsion. It is widely used in water rescue, military patrol, tourism and other related fields.

[0003] The suspension principle of the hovercraft is based on the air cushion effect, that is, when the internal fan of the hovercraft is started, high-pressure air will be quickly pressed into the air cushion groove at the bottom of the hull, thereby forming a pressure air mass between the bottom of the hull and the water surface. The pressure air mass is used to gradually lift part or all of the hull upward out of the water, reducing the contact area between the hull and the water surface, reducing water resistance, and thereby allowing the hull to remain suspended.

[0004] The propulsion principle of the hovercraft is achieved through fan propulsion and rudder control. The fan of the hovercraft is usually installed at the rear of the hull. When the fan is started, it will generate propulsion airflow to push the hull forward. The rudder control controls the overall heading and speed of the hovercraft by further adjusting the direction and speed of the fan's propulsion airflow, ultimately achieving stable and flexible navigation in various complex water environments.

[0005] However, existing fans for hovercraft generally do not have a dedicated dust reduction design. During the operation of the fan, dust and other particles in the air tend to gradually accumulate along the air path to the fan blades or other parts. When the dust accumulation on the fan blades or other parts reaches a certain level, the propulsion efficiency and functional stability of the fan will be seriously reduced. In addition, frequent and regular cleaning is required to ensure functionality, which also increases maintenance costs. Utility Model Content

[0006] To this end, the utility model provides an air cushion craft fan device with a pre-dust reduction function to solve the technical problems in the prior art that the air cushion craft fan is prone to accumulate dust during operation, resulting in reduced propulsion efficiency and functional stability, increased overall maintenance costs, and poor application economy.

[0007] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0008] A fan device for an air cushion craft with a pre-dust reduction function comprises a fan housing:

[0009] The front end of the fan housing is detachably fixedly provided with a dust reduction spray ring seat, and the dust reduction spray ring seat is fixedly provided with a dust reduction atomizing nozzle corresponding to the inner side of the circumference thereof;

[0010] The dust suppression atomizing nozzle is connected to a water supply pipe through the dust suppression spray ring seat, and the water supply pipe is connected to a water supply pump;

[0011] The fan housing is provided with a first blade group and a second blade group in sequence, wherein the first blade group and the second blade group are coaxially counter-propeller-disposed.

[0012] On the basis of the above technical solution, the utility model is further described as follows:

[0013] As a further solution of the utility model, the dust reduction spray ring seat is evenly and fixedly provided with a plurality of groups of dust reduction atomizing nozzles along the inner side of the circumference thereof;

[0014] At least ten groups of dust reduction atomizing nozzles are provided.

[0015] As a further solution of the utility model, a water uniforming annular pipeline is fixedly arranged inside the dust reduction spray ring seat, and a plurality of groups of dust reduction atomizing nozzles are connected to the water uniforming annular pipeline.

[0016] As a further solution of the utility model, the water uniforming annular pipeline is connected to one end of the water supply pipe, and the other end of the water supply pipe is connected to the output end of the water supply pump;

[0017] The input end of the water supply pump is connected to the water storage tank and / or the water body where the hovercraft is located through a pipeline.

[0018] As a further solution of the utility model, a drive motor is fixedly assembled inside the fan housing, and a fan blade drive shaft is transmission-fixedly connected to the output end of the drive motor; the first fan blade group and the second fan blade group are transmission-fixedly sleeved on the fan blade drive shaft in sequence.

[0019] As a further solution of the present invention, the first fan blade group is located correspondingly in front of the second fan blade group.

[0020] As a further solution of the utility model, the front side portion of the first fan blade group is also fixedly mounted with a shaft sleeve limiting seat corresponding to the fan blade driving shaft.

[0021] As a further solution of the utility model, it also includes:

[0022] The shaft speed monitoring mechanism is fixedly assembled on the inner side of the fan housing, and the shaft speed monitoring end of the shaft speed monitoring mechanism is transmission-fixedly connected to the fan blade driving shaft.

[0023] As a further solution of the utility model, the blade drive shaft is also fixedly connected with a transmission gear set at a side position of the second blade group facing away from the first blade group;

[0024] The shaft speed monitoring end of the shaft speed monitoring mechanism is connected to the output shaft end of the transmission gear set in a transmission fixed manner.

[0025] The utility model has the following beneficial effects:

[0026] 1. Compared with the traditional hovercraft fan, this device installs a dust reduction spray ring seat at the air outlet of the fan and is equipped with a dust reduction atomizing nozzle. This design can adapt to the operating environment of the hovercraft to spray tiny water droplets / water mist when the fan is running, which can effectively capture and reduce dust and other particulate matter in the air, thereby reducing dust accumulation in the first and second blade groups, thereby keeping the fan clean and running efficiently, and also helps to improve the maintenance cycle of the equipment and reduce the frequency of cleaning and maintenance work.

[0027] 2. By designing the first and second blade groups to have coaxial reverse propellers, the aerodynamic performance of the fan can be significantly improved, which helps to improve the uniformity and efficiency of the fan's air output, reduce eddy currents and wind loss, and further assist in reducing the spray noise formed by the dust suppression atomizing nozzle. The reverse propeller design allows the fan to work in a more uniform pressure state, thereby effectively improving the aerodynamic efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the implementation methods of the utility model or the technical solutions in the prior art, the drawings required for the implementation methods or the description of the prior art will be briefly introduced below. The structures, proportions, sizes, etc. illustrated in this specification are only used to match the contents disclosed in the specification for people familiar with this technology to understand and read. Any structural modification, change in proportional relationship or adjustment of size should still fall within the scope of the technical contents disclosed in the utility model without affecting the effects and purposes that can be achieved by the utility model.

[0029] Figure 1 A schematic diagram of the overall axonometric structure corresponding to the front direction of the fan device for an air cushion craft with a pre-dust reduction function provided in an embodiment of the utility model.

[0030] Figure 2 A schematic diagram of the assembly structure of a fan device for an air cushion craft with a pre-dust reduction function provided in an embodiment of the utility model corresponding to the dorsal direction.

[0031] Figure 3 A schematic diagram of the assembly structure of a water-uniform annular pipeline and a dust-reduction atomizing nozzle in a fan device for an air cushion vessel with a pre-dust-reduction function provided in an embodiment of the utility model.

[0032] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0033] 1. Fan housing; 2. Dust suppression spray ring seat; 3. Dust suppression atomizing nozzle; 4. Shaft sleeve limit seat; 5. First fan blade group; 6. Water supply pipe; 7. Water supply pump; 8. Fan blade drive shaft; 9. Second fan blade group; 10. Transmission gear group; 11. Shaft speed monitoring mechanism; 12. Water uniforming annular pipeline. DETAILED DESCRIPTION

[0034] 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.

[0035] In the description of the present utility model, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "two ends", "one end", "the other end" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as a limitation on the present utility model. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without making creative efforts are within the scope of protection of the present utility model.

[0036] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection; it can be directly connected, or indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0037] like Figures 1 to 3 As shown, the embodiment of the utility model provides a fan device for an air cushion vessel with a pre-dust reduction function, including a fan housing 1, a dust reduction spray ring seat 2, a dust reduction atomizing nozzle 3, a shaft sleeve limit seat 4, a first fan blade group 5, a water supply pipe 6, a water supply pump 7, a fan blade drive shaft 8, a second fan blade group 9, a transmission gear group 10, a shaft speed monitoring mechanism 11 and a water uniform annular pipeline 12. The specific settings are as follows:

[0038] Please refer to Figure 1 and Figure 3The front end of the fan housing 1 is detachably fixedly provided with the dust reduction spray ring seat 2, and the dust reduction spray ring seat 2 is evenly fixedly provided with a plurality of dust reduction atomizing nozzles 3 along the inner side of its circumference; the interior of the dust reduction spray ring seat 2 is fixedly provided with a uniform water annular pipeline 12, and a plurality of dust reduction atomizing nozzles 3 are connected to the uniform water annular pipeline 12.

[0039] The water uniforming annular pipeline 12 is connected to one end of the water supply pipe 6, and the other end of the water supply pipe 6 is connected to the output end of the water supply pump 7. In an optional implementation scheme, the input end of the water supply pump 7 is connected to the water tank and / or the water body where the hovercraft is located via a pipeline.

[0040] Please refer to Figure 1 and Figure 2 The fan housing 1 is internally fixedly equipped with a driving motor, and the output end of the driving motor is transmission-fixedly equipped with the blade driving shaft 8; the first blade group 5 and the second blade group 9 are sequentially transmission-fixedly sleeved on the blade driving shaft 8, and the first blade group 5 is correspondingly located in front of the second blade group 9, so that the first blade group 5 and the second blade group 9 form a coaxial counter-propeller arrangement; the front side of the first blade group 5 is also fixedly sleeved with a shaft sleeve limit seat 4 corresponding to the blade driving shaft 8, which is used to effectively limit the blade group through the shaft sleeve limit seat 4.

[0041] Please continue to refer to Figure 2 The fan blade drive shaft 8 is also fixedly provided with a transmission gear set 10 at a side position corresponding to the second fan blade group 9 facing away from the first fan blade group 5, so as to receive the rotational kinetic energy of the fan blade drive shaft 8 in real time through the transmission gear set 10; the shaft speed monitoring mechanism 11 is fixedly assembled on the inner side of the fan housing 1, and the shaft speed monitoring end of the shaft speed monitoring mechanism 11 is fixedly connected to the output shaft end of the transmission gear set 10, so as to monitor the rotation speed of the fan blade drive shaft 8 in real time through the shaft speed monitoring mechanism 11, and thereby assist in judging the dust accumulation state of the fan blade group.

[0042] Compare Projects Traditional Hovercraft Fan New Hovercraft Fan Dust reduction effect Poor dust reduction effect and easy to get clogged Water mist dust reduction, dust reduction effect increased by 70% noise Traditional fans are noisy Coaxial reverse propeller design reduces noise by 45%

[0043] By comparing the above table, it can be seen that compared with the traditional hovercraft fan, the utility model installs a dust reduction spray ring seat 2 at the air outlet of the fan and is equipped with a dust reduction atomizing nozzle 3. This design can adapt to the operating environment of the hovercraft to spray tiny water droplets / water mist when the fan is running, which can effectively capture and reduce dust and other particulate matter in the air, and then reduce the dust accumulation of the first blade group 5 and the second blade group 9, so as to keep the fan clean and run efficiently, and also help to improve the maintenance cycle of the equipment and reduce the frequency of cleaning and maintenance work. After experimental comparison, this design is 70% better than the traditional hovercraft fan.

[0044] By designing the first blade group 5 and the second blade group 9 to have coaxial reverse propellers (i.e., the two layers of blades have opposite directions), the aerodynamic performance of the fan can be significantly improved, which helps to improve the uniformity and efficiency of the fan's air output, reduce eddy currents and wind loss, and further assist in reducing the spray noise formed by the dust suppression atomizing nozzle 3. The reverse propeller design enables the fan to be in a working state with more uniform pressure, thereby improving aerodynamic efficiency.

[0045] The specific operation process of the utility model is as follows: when the fan is started, electricity drives the water supply pump 7 and the first blade group 5 and the second blade group 9 inside the fan; the water supply pump 7 draws water from an external source and transports it to the water uniforming annular pipeline 12 in the dust reduction spray ring seat 2 through the water supply pipe 6.

[0046] The water flows in the water uniforming annular pipeline 12 , and the internal design of the water pipeline ensures that the water is evenly distributed to at least ten groups of dust reduction atomizing nozzles 3 arranged on the dust reduction spray ring seat 2 .

[0047] When the fan is running, the dust-reducing atomizing nozzle 3 starts to spray fine water mist, which helps to capture dust and other particles in the air flowing through the fan, effectively reducing the accumulation of dust and improving the cleanliness of the inside of the fan and its surrounding environment.

[0048] The first blade group 5 and the second blade group 9 installed inside the fan are arranged in a coaxial counter-propeller manner. This means that the two sets of blades are on the same axis but rotate in opposite directions. This reverse blade design helps smooth and optimize the airflow, reduce eddies and turbulence in the airflow, thereby improving the efficiency of the fan and reducing noise.

[0049] Although the utility model has been described in detail above with general descriptions and specific embodiments, it is obvious to those skilled in the art that some modifications or improvements can be made to the utility model. Therefore, these modifications or improvements made without departing from the spirit of the utility model are within the scope of protection claimed by the utility model.

Claims

1. A fan device for an air cushion craft with a pre-dust reduction function, comprising a fan housing (1), characterized in that: The front end of the fan housing (1) is detachably fixedly provided with a dust reduction spray ring seat (2), and the dust reduction spray ring seat (2) is fixedly provided with a dust reduction atomizing nozzle (3) corresponding to the inner side of the circumference thereof; The dust reduction atomizing nozzle (3) is connected to a water supply pipe (6) via the dust reduction spray ring seat (2), and the water supply pipe (6) is connected to a water supply pump (7); A first blade group (5) and a second blade group (9) are sequentially mounted inside the fan housing (1), and the first blade group (5) and the second blade group (9) are coaxially arranged in a counter-rotating manner.

2. The fan device for a hovercraft with a pre-dust suppression function according to claim 1, characterized in that: The dust reduction spray ring seat (2) is evenly and securely provided with a plurality of groups of dust reduction atomizing nozzles (3) along the inner side of the circumference thereof; At least ten groups of dust reduction atomizing nozzles (3) are provided.

3. The fan device for a hovercraft with a pre-dust suppression function according to claim 1, characterized in that: A water-distributing annular pipeline (12) is fixedly arranged inside the dust-reducing spray ring seat (2), and a plurality of groups of dust-reducing atomizing nozzles (3) are connected to the water-distributing annular pipeline (12).

4. The fan device for a hovercraft with a pre-dust suppression function according to claim 3, characterized in that: The water uniforming annular pipeline (12) is connected to one end of the water supply pipe (6), and the other end of the water supply pipe (6) is connected to the output end of the water supply pump (7); The input end of the water supply pump (7) is connected to the water storage tank and / or the water body where the hovercraft is located through a pipeline.

5. The fan device for a hovercraft with a pre-dust suppression function according to claim 1, characterized in that: A drive motor is fixedly mounted inside the fan housing (1), and a fan blade drive shaft (8) is transmission-fixedly mounted on the output end of the drive motor; the first fan blade group (5) and the second fan blade group (9) are sequentially transmission-fixedly sleeved on the fan blade drive shaft (8).

6. The fan device for a hovercraft with a pre-dust suppression function according to claim 5, characterized in that: The first fan blade group (5) is located correspondingly in front of the second fan blade group (9).

7. The fan device for a hovercraft with a pre-dust suppression function according to claim 5, characterized in that: The front side portion of the first blade group (5) is also fixedly sleeved with a shaft sleeve limiting seat (4) corresponding to the blade drive shaft (8).

8. The fan device for a hovercraft with a pre-dust suppression function according to claim 5, characterized in that: Also includes: The shaft speed monitoring mechanism (11) is fixedly assembled on the inner side of the fan housing (1), and the shaft speed monitoring end of the shaft speed monitoring mechanism (11) is transmission-fixedly connected to the fan blade drive shaft (8).

9. The fan device for a hovercraft with a pre-dust suppression function according to claim 8, characterized in that: The blade drive shaft (8) is also provided with a transmission gear set (10) in transmission connection at a side portion of the second blade set (9) facing away from the first blade set (5); The shaft speed monitoring end of the shaft speed monitoring mechanism (11) is connected to the output shaft end of the transmission gear set (10) in a transmission fixed manner.

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